diff options
81 files changed, 44407 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..54fc00b --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +*.old +build +build.exe diff --git a/Fuse/allocators.c b/Fuse/allocators.c new file mode 100644 index 0000000..f2c6a67 --- /dev/null +++ b/Fuse/allocators.c @@ -0,0 +1,303 @@ +#pragma once + +#include "allocators.h" + +static inline bool is_power_of_two(uintptr_t x) { + return (x & (x-1)) == 0; +} + +static inline uintptr_t align_forward(uintptr_t ptr, size_t align) { + uintptr_t p, a, remainder; + assert(is_power_of_two(align)); + + p = ptr; + a = (uintptr_t)align; + remainder = p & (a-1); + + return (remainder != 0) ? p + a - remainder : p; +} + + +void +al_arena_create(Arena *a, void *backing_buffer, size_t backing_buffer_length) +{ + a->buf = (unsigned char *)backing_buffer; + a->buf_len = backing_buffer_length; + a->curr_offset = 0; + a->prev_offset = 0; +} + +void* +al_arena_alloc_align(Arena *a, size_t s, size_t align) +{ + + // Align 'curr_offset' forward to the specified alignment + uintptr_t curr_ptr = (uintptr_t)a->buf + (uintptr_t)a->curr_offset; + uintptr_t offset = align_forward(curr_ptr, align); + offset -= (uintptr_t)a->buf; // Change to relative offset + + // Check to see if the backing memory has space left + if (offset+s <= a->buf_len) { + void *ptr = &a->buf[offset]; + a->prev_offset = offset; + a->curr_offset = offset+s; + + memset(ptr, 0, s); + return ptr; + } + + return NULL; +} + +void* +al_arena_alloc(Arena *a, size_t s) { + return al_arena_alloc_align(a, s, DEFAULT_ALIGNMENT); +} + +void* +al_arena_resize_align(Arena *a, void *old_memory, size_t old_size, size_t new_size, size_t align) +{ + assert(is_power_of_two(align)); + unsigned char *old_mem = (unsigned char *)old_memory; + + if (old_mem == NULL || old_size == 0) { + return al_arena_alloc_align(a, new_size, align); + } else if (a->buf <= old_mem && old_mem < a->buf+a->buf_len) { + if (a->buf+a->prev_offset == old_mem) { + a->curr_offset = a->prev_offset + new_size; + if (new_size > old_size) { + // Zero the new memory by default + memset(&a->buf[a->curr_offset], 0, new_size-old_size); + } + return old_memory; + } else { + void *new_memory = al_arena_alloc_align(a, new_size, align); + size_t copy_size = old_size < new_size ? old_size : new_size; + memmove(new_memory, old_memory, copy_size); + return new_memory; + } + + } else { + assert(0 && "Memory is out of bounds of the buffer in this arena"); + return NULL; + } +} + +void* +al_arena_resize(Arena *a, void *old_memory, size_t old_size, size_t new_size) +{ + return al_arena_resize_align(a, old_memory, old_size, new_size, DEFAULT_ALIGNMENT); +} + +void +al_arena_free_all(Arena *a) +{ + a->curr_offset = 0; + a->prev_offset = 0; +} + +void +al_arena_destroy(Arena* a) +{ + a->buf_len = 0; + a->curr_offset = 0; + a->prev_offset = 0; +} + +void +al_stack_create(Stack *s, void *backing_buffer, size_t backing_buffer_length) +{ + s->buf = (unsigned char*) backing_buffer; + s->buf_len = backing_buffer_length; + s->offset = 0; +} + +size_t +al_calc_padding_with_header(uintptr_t ptr, uintptr_t alignment, size_t header_size) +{ + uintptr_t p, a, modulo, padding, needed_space; + + assert(is_power_of_two(alignment)); + + p = ptr; + a = alignment; + modulo = p & (a-1); // (p % a) as it assumes alignment is a power of two + + padding = 0; + needed_space = 0; + + if (modulo != 0) { // Same logic as 'align_forward' + padding = a - modulo; + } + + needed_space = (uintptr_t)header_size; + + if (padding < needed_space) { + needed_space -= padding; + + if ((needed_space & (a-1)) != 0) { + padding += a * (1+(needed_space/a)); + } else { + padding += a * (needed_space/a); + } + } + + return (size_t)padding; +} + +void* +al_stack_alloc(Stack *s, size_t len, size_t alignment) +{ + uintptr_t curr_addr, next_addr; + size_t padding; + Stack_Allocation_Header *header; + + assert(is_power_of_two(alignment)); + + if (alignment > 128) { + // As the padding is 8 bits (1 byte), the largest alignment that can + // be used is 128 bytes + alignment = 128; + } + + curr_addr = (uintptr_t)s->buf + (uintptr_t)s->offset; + padding = al_calc_padding_with_header(curr_addr, (uintptr_t)alignment, sizeof(Stack_Allocation_Header)); + if (s->offset + padding + len > s->buf_len) { + // Stack allocator is out of memory + return NULL; + } + s->offset += padding; + + next_addr = curr_addr + (uintptr_t)padding; + header = (Stack_Allocation_Header *)(next_addr - sizeof(Stack_Allocation_Header)); + header->padding = (uint8_t)padding; + + s->offset += len; + + return memset((void *)next_addr, 0, len); +} + +void +al_stack_free(Stack *s, void *ptr) +{ + if (ptr != NULL) { + uintptr_t start, end, curr_addr; + Stack_Allocation_Header *header; + size_t prev_offset; + + start = (uintptr_t)s->buf; + end = start + (uintptr_t)s->buf_len; + curr_addr = (uintptr_t)ptr; + + if (!(start <= curr_addr && curr_addr < end)) { + assert(0 && "Out of bounds memory address passed to stack allocator (free)"); + return; + } + + if (curr_addr >= start+(uintptr_t)s->offset) { + // Allow double frees + return; + } + + header = (Stack_Allocation_Header *)(curr_addr - sizeof(Stack_Allocation_Header)); + prev_offset = (size_t)(curr_addr - (uintptr_t)header->padding - start); + + s->offset = prev_offset; + } +} + +void +al_stack_free_all(Stack* s) +{ + s->offset = 0; +} + +void +al_stack_destroy(Stack* s) +{ + s->buf = 0; + s->buf_len = 0; + s->offset = 0; +} + +void +al_pool_create(Pool *p, void *buf, size_t buf_len, size_t chunk_size, size_t chunk_align) +{ + /* align start */ + uintptr_t start = (uintptr_t) buf; + uintptr_t aligned = align_forward(start, chunk_align); + buf_len -= (aligned - start); + + /* align chunk size_t */ + chunk_size = (size_t) align_forward(chunk_size, chunk_align); + + assert(chunk_size >= sizeof(Pool_Free_Node) && "Chunk size_t is too small"); + assert(buf_len >= chunk_size && "Backing buffer length is smaller than the chunk size"); + + p->buf = (unsigned char *) buf; + p->pool_size = buf_len; + p->chunk_size = chunk_size; + p->head = NULL; + + al_pool_free_all(p); +} + +void* +al_pool_alloc(Pool *p) +{ + Pool_Free_Node *node = p->head; + + assert(node != NULL && "Pool allocator has no free memory"); + + p->head = p->head->next; + + return memset(node, 0 , p->chunk_size); +} + +void +al_pool_free(Pool *p, void *ptr) +{ + Pool_Free_Node *node; + + void *start = p->buf; + void *end = &p->buf[p->pool_size]; + + if (ptr == NULL) { + return; + } + + if (!(start <= ptr && ptr < end)) { + assert(0 && "Memory is out of bounds of the buffer in this pool"); + return; + } + + node = (Pool_Free_Node *)ptr; + node->next = p->head; + p->head = node; +} + +void +al_pool_free_all(Pool *p) +{ + size_t chunk_count = p->pool_size / p->chunk_size; + size_t i; + + for (i = 0; i < chunk_count; i++) { + void *ptr = &p->buf[i * p->chunk_size]; + Pool_Free_Node *node = (Pool_Free_Node *)ptr; + + // Push free node onto thte free list + node->next = p->head; + p->head = node; + } +} + +void +al_pool_destroy(Pool *p) +{ + p->buf = NULL; + p->pool_size = 0; + p->chunk_size = 0; + p->head = NULL; +} + diff --git a/Fuse/allocators.h b/Fuse/allocators.h new file mode 100644 index 0000000..d029558 --- /dev/null +++ b/Fuse/allocators.h @@ -0,0 +1,60 @@ +#ifndef ALLOCATORS_H +#define ALLOCATORS_H + +#include <stddef.h> +#include <stdint.h> +#include <assert.h> +#include <string.h> + +#ifndef DEFAULT_ALIGNMENT +#define DEFAULT_ALIGNMENT (2*sizeof(void *)) +#endif + +typedef struct Arena { + unsigned char *buf; + size_t buf_len; + size_t curr_offset; + size_t prev_offset; +} Arena; + +typedef struct { uint8_t padding; } Stack_Allocation_Header; +typedef struct Stack { + unsigned char *buf; + size_t buf_len; + size_t offset; +} Stack; + +typedef struct Pool_Free_Node Pool_Free_Node; + +typedef struct Pool { + unsigned char *buf; + size_t chunk_size; + size_t pool_size; + Pool_Free_Node *head; +} Pool; + +struct Pool_Free_Node { struct Pool_Free_Node *next; }; + +void al_arena_create(Arena *a, void *backing_buffer, size_t backing_buffer_length); +void* al_arena_alloc_align(Arena *a, size_t s, size_t align); +void* al_arena_alloc(Arena *a, size_t s); +void* al_arena_resize_align(Arena *a, void *old_memory, size_t old_size, size_t new_size, size_t align); +void* al_arena_resize(Arena *a, void *old_memory, size_t old_size, size_t new_size); +void al_arena_free_all(Arena *a); +void al_arena_destroy(Arena* a); + +void al_stack_create(Stack *s, void *backing_buffer, size_t backing_buffer_length); +size_t al_calc_padding_with_header(uintptr_t ptr, uintptr_t alignment, size_t header_size); +void* al_stack_alloc(Stack *s, size_t len, size_t alignment); +void al_stack_free(Stack *s, void *ptr); +void al_stack_free_all(Stack* s); +void al_stack_destroy(Stack* s); + +void al_pool_create(Pool *p, void *buf, size_t buf_len, size_t chunk_size, size_t chunk_align); +void* al_pool_alloc(Pool *p); +void al_pool_free(Pool *p, void *ptr); +void al_pool_free_all(Pool *p); +void al_pool_destroy(Pool *p); + + +#endif diff --git a/Fuse/demos/fuse.slang b/Fuse/demos/fuse.slang new file mode 100644 index 0000000..837a3dc --- /dev/null +++ b/Fuse/demos/fuse.slang @@ -0,0 +1,31 @@ +struct VertexInput { + [[vk::location(0)]] float2 pos : POSITION; + [[vk::location(1)]] float4 col : COLOR; +}; + +struct VertexOutput { + float4 col : COLOR; + float4 pos : SV_Position; +}; + +struct UBO { + float2 viewport; +}; + +[[vk::binding(0, 0)]] +ConstantBuffer<UBO> ubo; + +[shader("vertex")] +VertexOutput vertMain(VertexInput input) +{ + VertexOutput output; + output.col = input.col; + output.pos = float4(input.pos*2.0/ubo.viewport - 1.0, 0.0, 1.0); + return output; +} + +[shader("fragment")] +float4 fragMain(VertexOutput input) : SV_Target +{ + return input.col; +} diff --git a/Fuse/demos/fuse_demo.c b/Fuse/demos/fuse_demo.c new file mode 100644 index 0000000..60128bd --- /dev/null +++ b/Fuse/demos/fuse_demo.c @@ -0,0 +1,280 @@ +#include "rend.h" +#include "rend.c" +#include "fuse.h" +#include "fuse.c" +#include <stddef.h> +#include <stdio.h> + +/* has to be included last because rend will ask for certain modules */ +#define PODIUM_IMPLEMENTATION +#include "podium.h" + +typedef struct { float x, y; } FuseVec2; +typedef struct { float x, y, z, w; } FuseVec4; + +#pragma pack(push, 1) +typedef struct { + FuseVec2 pos; + FuseVec4 color; +} FuseVertex; +#pragma pack(pop) + +static FuseVertex fuse_renderer_data[1024]; +static size_t fuse_renderer_idx = 0; + +struct data_t { float offset_x; float padding = 0 }; +struct data_t button_data = { .offset_x = 0, .padding = 0}; + +void stretch_button_op(void *data) { + struct data_t* ptr = (struct data_t*) data; + data->offset_x += 10; + data->padding += 10; +} + + +static inline FuseVec4 +fuse__unpack_color(uint32_t c) +{ + FuseVec4 v; + v.x = (float) ((c >> 24) & 0xFF) / 255.0f; // Red + v.y = (float) ((c >> 16) & 0xFF) / 255.0f; // Green + v.z = (float) ((c >> 8) & 0xFF) / 255.0f; // Blue + v.w = (float) ( c & 0xFF) / 255.0f; // Alpha + return v; +} + +void fuse_handler(FuseCanvas canvas, FuseCmd *cmd, void *data) { + switch (cmd->type) { + case FUSE_CMD_RECT: + FuseRect rect = cmd->rect; + FuseVec4 color = fuse__unpack_color(rect.color); + FuseVertex c0 = { + .pos = { rect.x, rect.y }, + .color = color + }; + + FuseVertex c1 = { + .pos = { rect.x + rect.w, rect.y }, + .color = color + }; + + FuseVertex c2 = { + .pos = { rect.x + rect.w, rect.y + rect.h }, + .color = color + }; + + FuseVertex c3 = { + .pos = { rect.x, rect.y + rect.h }, + .color = color + }; + + fuse_renderer_data[fuse_renderer_idx++] = c0; + fuse_renderer_data[fuse_renderer_idx++] = c1; + fuse_renderer_data[fuse_renderer_idx++] = c2; + + fuse_renderer_data[fuse_renderer_idx++] = c2; + fuse_renderer_data[fuse_renderer_idx++] = c3; + fuse_renderer_data[fuse_renderer_idx++] = c0; + break; + } +} + +#define SCREEN_WIDTH 800 +#define SCREEN_HEIGHT 600 + +int main() { + + P_Window window; + if (!p_window_open(&window, 800, 600, "fuse_demo")) { + PFATAL("Failed to open window!"); + return 1; + } + + if (!rend_init(REND_BACKEND_AUTO)) { + PFATAL("Failed to initialize backend!"); + return 1; + } + + RendRenderer renderer = rend_renderer_create(&window, true); + RendShader vert = rend_shader_from_spv_path(REND_SHADER_VERTEX, "fuse.vert.spv"); + RendShader frag = rend_shader_from_spv_path(REND_SHADER_FRAG, "fuse.frag.spv"); + + RendPipelineConfig ui_cfg = rend_pipeline_config_create( + REND_TOPOLOGY_TRIANGLE_LIST, + REND_POLYGON_MODE_FILL, + REND_CULL_MODE_BACK); + rend_pipeline_config_depth_test(ui_cfg, false); + + /* configure vertex input */ + int b0 = rend_pipeline_config_vertex_binding_add(ui_cfg, sizeof (FuseVertex), REND_INPUT_RATE_VERTEX); + rend_pipeline_config_vertex_attribute_add(ui_cfg, b0, 0, REND_FORMAT_R32G32_SFLOAT, offsetof(FuseVertex, pos)); + rend_pipeline_config_vertex_attribute_add(ui_cfg, b0, 1, REND_FORMAT_R32G32B32A32_SFLOAT, offsetof(FuseVertex, color)); + rend_pipeline_config_resource_binding_add(ui_cfg, 0, 0, REND_BUFFER_UNIFORM, REND_SHADER_VERTEX, 1); + + /* add the shaders */ + rend_pipeline_config_shader_add(ui_cfg, vert); + rend_pipeline_config_shader_add(ui_cfg, frag); + + RendPipeline ui_pipeline = rend_pipeline_create(renderer, ui_cfg); + + RendResourceSet ui_resources = rend_resource_set_create(renderer, ui_pipeline, 0); + + FuseCanvas canvas = fuse_canvas_create(1024, NULL); + + u64 frame_t = NANOS_PER_SEC / 60; + + bool running = true; + P_Event ev; + float pev = 0, px = 0, py = 0; + + float nob = 0.3; + + float target_screen[2] = { SCREEN_WIDTH, SCREEN_HEIGHT }; + rend_resource_set_write_buffer(ui_resources, 0, REND_BUFFER_UNIFORM, target_screen, 2 * sizeof *target_screen, 0); + + float real_screen_width = 0; + float real_screen_heigth = 0; + + enum UI_State { + UI_START_MENU, + UI_OPTIONS, + }; + + int ui_state = UI_START_MENU; + + while (running) { + + u64 start = p_get_time(); + + pev = 0; + /* event loop */ + while (p_window_poll_event(&window, &ev)) { + if (ev.type == P_EVENT_WINDOW_CLOSE) { + running = false; + break; + } + + switch (ev.type) { + case P_EVENT_WINDOW_RESIZE: + real_screen_width = ev.resize.width; + real_screen_heigth = ev.resize.height; + break; + case P_EVENT_POINTER: + px = ev.pointer.x; + py = ev.pointer.y; + switch (ev.pointer.state) { + case P_POINTER_PRESSED: + if (ev.pointer.button == 1 || ev.pointer.button == 0) + pev = FUSE_POINTER_PRESSED; + break; + case P_POINTER_RELEASED: + if (ev.pointer.button == 1 || ev.pointer.button == 0) + pev = FUSE_POINTER_RELEASED; + break; + default: + case P_POINTER_MOVED: + break; + } + + fuse_canvas_pointer(pev, px * SCREEN_WIDTH / real_screen_width, py * SCREEN_HEIGHT / real_screen_heigth); + break; + } + } + + /* Clears the Screen */ + fuse_canvas_clear(canvas, 0x000000); + + /* Inside a div, children no longer have fixed positions, + * instead x, y represent an offset so that they can still be animated! + * Width and height represent min width and min height instead! */ + if (ui_state == UI_START_MENU) { + // NOTE: brackets for legibility only + FUSE_LAYOUT_DIRECTION(FUSE_DIRECTION_COLUMN); + fuse_div_begin(0, 0, SCREEN_WIDTH / 4, SCREEN_HEIGHT, 0xFFFFFFaa); + { + + fuse_hovered(stretch_button_op, data); + + if (fuse_button_text("Start New Game", button_data.offset_x, 0, 100, 0, 0xFF0000FF, 0x000000FF)) { + printf("start new game"); + } + + + if (fuse_button_text("Options", 0, 0, 100, 0, 0xFF0000FF, 0x000000FF)) { + ui_state = UI_OPTIONS; + } + + + if (fuse_button_text("Credits", 0, 0, 100, 0, 0xFF0000FF, 0x000000FF)) { + printf("awesome credits"); + } + + if (fuse_button_text("Quit Game")) { + running = false; + break; + } + + fuse_hovered_clear(); + + } + fuse_div_end(); + + /* back to global layouting */ + fuse_3d_object(); + fuse_3d_point_at(); + + + } else if (ui_state == UI_OPTIONS) { + + /* Inside a flex the same x,y as offsets and width and height as minimums rules apply + * The difference is that a flex is flexible, by default it does not have a fixed size + * but you may specify minimums and maximus for it to work around. + */ + + FUSE( + .max_width = 300, + .max_height = 600, + .direction = FUSE_DIRECTION_COLUMN, + .gap = 32 + ); + + fuse_flex_begin(0, 0, SCREEN_WIDTH / 4, SCREEN_HEIGHT, 0xFFFFFFaa); + { + if (fuse_checkbox_text("VSYNC", &vsync)) { + vsync = ~vsync; + } + } + } + + fuse_slider(100, 200, 300, 600, 0xFFFF00FF, 0xFF0000FF, &nob); + + fuse_canvas_draw(canvas, fuse_handler, NULL); + + /* call renderer */ + if (rend_renderer_frame_begin(renderer)) { + rend_pipeline_bind(ui_pipeline); + rend_resource_set_bind(ui_pipeline, 0, ui_resources); + + rend_pipeline_push_data(ui_pipeline, fuse_renderer_data, fuse_renderer_idx, sizeof *fuse_renderer_data); + rend_pipeline_draw(ui_pipeline); + + rend_renderer_frame_end(renderer, NULL); + } + + fuse_renderer_idx = 0; + + u64 elapsed = p_get_time() - start; + + /* the renderer should already be forcing vsync */ + if (elapsed < frame_t) + p_sleep_ns(frame_t - elapsed); + } + + + fuse_canvas_destroy(canvas); + + rend_quit(); + + p_window_close(&window); + return 0; +} diff --git a/Fuse/fuse.c b/Fuse/fuse.c new file mode 100644 index 0000000..401b06e --- /dev/null +++ b/Fuse/fuse.c @@ -0,0 +1,436 @@ +#ifndef _FUSE_C_ +#define _FUSE_C_ + /* __________________________________________________________________________ + * | CmdType | CmdRect | CmdType | CmdRectBorder | ... + * -------------------------------------------------------------------------- + */ + + +#include "fuse.h" +#include "fuse_internal.h" +#include "fuse_backend.h" + +#include "fuse_tween.c" + +#include "allocators.c" +#include <stdint.h> +#include <string.h> + +#define FUSE_MIN(a, b) ((a < b) ? a : b) +#define FUSE_MAX(a, b) ((a > b) ? a : b) +#define FUSE_LIMIT(n, a, b) (FUSE_MAX(a, FUSE_MIN(b, n))) +#define FUSE_IS_HOVERED(x, y, w, h) (\ + f__canvas->pointer_x >= x && f__canvas->pointer_x <= x + w &&\ + f__canvas->pointer_y >= y && f__canvas->pointer_y <= y + h) + +static inline size_t fuse__element(); // "base class" of all UI widgets +static inline void fuse__cmdbuffer_push(FuseCmd cmd); +static void fuse__cmdbuffer_print(); + +static const char* fuse__cmd_name(uint8_t type); + +extern FuseCanvas +fuse_canvas_create(size_t memory_limit, FuseStyle base_style) +{ + (void) base_style; + + FuseCanvas new = malloc(sizeof *new); + memset(new, 0, sizeof *new); + + new->memory = malloc(memory_limit); + + al_arena_create(&new->arena, new->memory, memory_limit); + + size_t cmdbuffer_mem = (memory_limit * 8) / 10; + cmdbuffer_mem -= (cmdbuffer_mem % sizeof *new->cmdbuffer_ptr); // remove remainder + + FuseCmd *cmdbuffer_ptr = al_arena_alloc(&new->arena, cmdbuffer_mem); + new->cmdbuffer_ptr = cmdbuffer_ptr; + new->cmdbuffer_size = cmdbuffer_mem / sizeof (*cmdbuffer_ptr); + new->cmdbuffer_head = 0; + + size_t element_data_mem = memory_limit - cmdbuffer_mem; + void *element_data_ptr = al_arena_alloc(&new->arena, element_data_mem); + + al_arena_create(&new->element_data_arena, element_data_ptr, element_data_mem); + + fuse_canvas_set(new); + return new; +} + +extern void +fuse_canvas_set(FuseCanvas canvas) +{ + f__canvas = canvas; +} + +extern void +fuse_canvas_debug(FuseCanvas canvas, bool debug) +{ + canvas->debug = debug; +} + +extern void +fuse_canvas_clear(FuseCanvas canvas) +{ + canvas->cmdbuffer_head = 0; + canvas->current_id = 0; + canvas->current_frame++; +} + +extern void +fuse_canvas_draw(FuseCanvas canvas, FuseRendererCallback callback, void* data) +{ + for (size_t u = 0; u < f__canvas->cmdbuffer_head; u++) { + FuseCmd cmd = f__canvas->cmdbuffer_ptr[u]; + assert(cmd.type < FUSE_CMD_COUNT && "[FUSE] WARN: INVALID TYPE IN COMMAND BUFFER"); + callback(canvas, &cmd, data); + } +} + +extern void +fuse_canvas_resize(FuseCanvas canvas, float w, float h) +{ + canvas->width = w; + canvas->height = h; +} + +extern void +fuse_canvas_pointer(FuseCanvas canvas, int pointer_state, float x, float y) +{ + canvas->pointer_state = pointer_state; + canvas->pointer_x = x; + canvas->pointer_y = y; +#ifdef FUSE_DEBUG + const char *pstate[] = { + [FUSE_POINTER_NONE] = "NONE", + [FUSE_POINTER_PRESSED] = "PRESSED", + [FUSE_POINTER_RELEASED] = "RELEASED", + [FUSE_POINTER_ALT] = "ALT" + }; + printf("[DEBUG] [FUSE] px=%f py=%f ps=%s\n", canvas->pointer_x, canvas->pointer_y, pstate[pointer_state]); +#endif +} + +extern void +fuse_canvas_destroy(FuseCanvas canvas) +{ + free(canvas->memory); + free(canvas); +} + +extern bool +fuse_button(float x, float y, float width, float height, uint32_t selected, uint32_t hovered) +{ + size_t id = fuse__element(); + bool clicked = false; + + bool hot = FUSE_IS_HOVERED(x, y, width, height); + + if (hot) f__canvas->hot = id; + + /* are we the active component? */ + if (f__canvas->active == id) { + if (f__canvas->pointer_state == FUSE_POINTER_RELEASED) { + if (hot) clicked = true; + f__canvas->active = 0; + } + } else if (hot && f__canvas->pointer_state == FUSE_POINTER_PRESSED) { + f__canvas->active = id; + } + + FuseCmd cmd = { + .type = FUSE_CMD_RECT, + .rect = { + .color = (hot) ? hovered : selected, + .x = x, + .y = y, + .w = width, + .h = height, + } + }; + + fuse__cmdbuffer_push(cmd); + + return clicked; +} + +extern void +fuse_slider(float x, float y, float width, float height, uint32_t slider, uint32_t nob, float *nob_pos) +{ + size_t id = fuse__element(); + + /* are we the hot component? */ + bool hot = FUSE_IS_HOVERED(x, y, width, height); + + if (hot) f__canvas->hot = id; + + bool is_vert = (width < height); + float nob_width = is_vert ? width : height; + float nob_height = is_vert ? width : height; + float track_len = is_vert ? (height - nob_height) : (width - nob_width); + float p_off = is_vert ? (f__canvas->pointer_y - (y + nob_height * 0.5f)) : (f__canvas->pointer_x - (x + nob_width * 0.5f)); + float val = (track_len > 0.0f) ? (p_off / track_len) : 0.0f; + + /* calculate nob_pos from pointer */ + if (f__canvas->active == id) { + if (f__canvas->pointer_state == FUSE_POINTER_RELEASED) { + if (hot) { /* clicked */ } + f__canvas->active = 0; + } + *nob_pos = FUSE_MAX(0.0f, FUSE_MIN(1.0f, val)); + + } else if (hot && f__canvas->pointer_state == FUSE_POINTER_PRESSED) { + f__canvas->active = id; + *nob_pos = FUSE_MAX(0.0f, FUSE_MIN(1.0f, val)); + + } + + /* clamp nob_pos */ + *nob_pos = FUSE_LIMIT(*nob_pos, 0.0f, 1.0f); + + float nob_x = is_vert ? 0.0f : (*nob_pos * (width - nob_width)); + float nob_y = is_vert ? (*nob_pos * (height - nob_height)) : 0.0f; + + FuseCmd cmd = { + .type = FUSE_CMD_RECT, + .rect = { + .color = slider, + .x = x, + .y = y, + .w = width, + .h = height, + } + }; + + FuseCmd nob_rect = { + .type = FUSE_CMD_RECT, + .rect = { + .color = nob, + .x = x + nob_x, + .y = y + nob_y, + .w = nob_width, + .h = nob_height, + } + }; + + fuse__cmdbuffer_push(cmd); + fuse__cmdbuffer_push(nob_rect); +} + +extern int +fuse_tooltip(const char *text) +{ + FUSE_TODO; + /* NOTE(vasco): this is supposed to add a tooltip when the last element was hovered... + * will probably need to grab the last element's box? + * I mean i need to know it's bounds and add an element that + * shows up after being hovered over a few frames + * so we will need to retain some data via the hashmap + * + * that's the plan for now + */ + (void) text; +} + +static inline size_t +fuse__element() +{ + // we increment first because 0 is used for when no element is + // selected + size_t id = ++f__canvas->current_id; + return id; +} + +static inline void +fuse__cmdbuffer_push(FuseCmd cmd) +{ + if (f__canvas->cmdbuffer_head < f__canvas->cmdbuffer_size) + f__canvas->cmdbuffer_ptr[f__canvas->cmdbuffer_head++] = cmd; +} + +static void +fuse__cmdbuffer_print() +{ + for (size_t u = 0; u < f__canvas->cmdbuffer_head; u++) { + FuseCmd cmd = f__canvas->cmdbuffer_ptr[u]; + assert(cmd.type < FUSE_CMD_COUNT && "[FUSE] WARN: INVALID TYPE IN COMMAND BUFFER"); + + printf("CMD: %s - ", fuse__cmd_name(cmd.type)); + switch (cmd.type) { + case FUSE_CMD_RECT: + printf("x=%f y=%f w=%f h=%f col=%x", cmd.rect.x, cmd.rect.y, cmd.rect.w, cmd.rect.h, cmd.rect.color); + break; + } + printf("\n"); + } +} + +static const char* +fuse__cmd_name(uint8_t type) +{ + assert(type < FUSE_CMD_COUNT); + return fuse_cmd_name[type]; +} + + +extern bool +fuse_button_text(const char *text, float x, float y, float width, float height, uint32_t selected, uint32_t hovered) +{ + (void) text; (void) x; (void) y; (void) width; (void) height; (void) selected; (void) hovered; + FUSE_TODO; + return false; +} + +extern bool +fuse_checkbox_text(const char *text, bool *value) +{ + (void) text; (void) value; + FUSE_TODO; + return false; +} + +extern bool +fuse_element_is_hovered(const char *text) +{ + (void) text; + FUSE_TODO; + return false; +} + +extern void +fuse_hovered(void (*op)(void*), void *data) +{ + (void) op; (void) data; + FUSE_TODO; +} + +extern void +fuse_hovered_clear() +{ + FUSE_TODO; +} + +extern void +fuse_rotate_rad() +{ + FUSE_TODO; +} + +extern void +fuse_rotate_deg() +{ + FUSE_TODO; +} + +extern void +fuse_layout(FuseLayoutInfo info) +{ + (void) info; + FUSE_TODO; +} + +extern void +fuse_div_begin(float x, float y, float width, float height, uint32_t color) +{ + (void) x; (void) y; (void) width; (void) height; (void) color; + FUSE_TODO; +} + +extern void +fuse_div_end() +{ + FUSE_TODO; +} + +extern void +fuse_flex_begin(float x, float y, float width, float height, uint32_t color) +{ + (void) x; (void) y; (void) width; (void) height; (void) color; + FUSE_TODO; +} + +extern void +fuse_flex_end() +{ + FUSE_TODO; +} + +extern FuseStyle +fuse_style_save(const char *path) +{ + (void) path; + FUSE_TODO; + return NULL; +} + +extern void +fuse_style_set(FuseStyle style) +{ + (void) style; + FUSE_TODO; +} + +extern void +fuse_style_load(const char *path) +{ + (void) path; + FUSE_TODO; +} + +extern void +fuse_window_begin(char *name, float width, float height, uint32_t border_color, uint32_t border_width) +{ + (void) name; (void) width; (void) height; (void) border_color; (void) border_width; + FUSE_TODO; +} + +extern void +fuse_window_end() +{ + FUSE_TODO; +} + +extern void +fuse_grid_begin(uint32_t cols, uint32_t rows, const float *col_ratios, const float *row_ratios) +{ + (void) cols; (void) rows; (void) col_ratios; (void) row_ratios; + FUSE_TODO; +} + +extern void fuse_grid_next_row() { FUSE_TODO; } +extern void fuse_grid_next_col() { FUSE_TODO; } +extern void fuse_grid_prev_row() { FUSE_TODO; } +extern void fuse_grid_prev_col() { FUSE_TODO; } +extern void fuse_grid_next() { FUSE_TODO; } +extern void fuse_grid_prev() { FUSE_TODO; } + +extern void +fuse_grid_goto(uint32_t col, uint32_t row) +{ + (void) col; (void) row; + FUSE_TODO; +} + +extern void fuse_grid_end() { FUSE_TODO; } + +extern void fuse_3d_object() { FUSE_TODO; } +extern void fuse_3d_point_at() { FUSE_TODO; } + +extern int +fuse_animate_i(FuseAnimation anim, int i1, int i2) +{ + (void) anim; (void) i1; (void) i2; + FUSE_TODO; + return 0; +} + +extern float +fuse_animate_f(FuseAnimation anim, float f1, float f2, float f, bool loop) +{ + (void) anim; (void) f1; (void) f2; (void) f; (void) loop; + FUSE_TODO; + return 0.0f; +} + +#endif // _FUSE_C_ diff --git a/Fuse/fuse.h b/Fuse/fuse.h new file mode 100644 index 0000000..9b1540e --- /dev/null +++ b/Fuse/fuse.h @@ -0,0 +1,138 @@ +/* =========================================================================== + * FUSE - Zero Dependency UI Library - Copyright (c) 2025-2026 Vasco Alves + * See LICENCE file for license info. + * + * DESCRIPTION: + * A UI library that outputs a buffer of draw commands (or vertices) for + * you to render via a desired backend. By default all components have + * "fixed" positioning and fixed size because we assume the user has + * more knowledge of the final layout than we do. Tweening and relative + * positioning are achieved by running helper functions on the + * parameters you want to tween / be relative. + * + * EXAMPLE: + * float tween_y = fuse_tween_f(FUSE_ANIMATION_EASE_IN, 0.1, 0.3, 1, start); + * float rel_x = fuse_percent_x(30.45); + * if (fuse_button(rel_x, tween_y, 0.5, 0.3, 0xFFFF00FF, 0xFF0000FF)) { + * printf("pressed\n"); + * } + * + * =========================================================================== */ + +#ifndef _FUSE_H_ +#define _FUSE_H_ + +#define FUSE_MAJOR "0" +#define FUSE_MINOR "0" +#define FUSE_PATCH "1" + +/* CHANGE LOG + * 0.0.1 - @vasco - slider + */ + + +#include <stdint.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> + +#include "allocators.h" +#include "fuse_backend.h" + +/* NOTE(vasco): + * It's important that we make the API really good and future-proof. + * Functions should take as many arguments as possible. + * We can add shorthands later. + */ + +typedef struct fuse_canvas_t* FuseCanvas; // Basically the main context of each "surface" you want to draw on. +typedef struct fuse_window_t* FuseWindow; // A floating window / panel to separate your UI. +typedef struct fuse_font_t* FuseFont; +typedef struct fuse_style_t* FuseStyle; // Configurable style for your application. +typedef void(*FuseRendererCallback)(FuseCanvas, FuseCmd *cmd, void *data); +typedef void(*FuseOpCallback)(void *data); + +typedef struct FuseLayoutInfo { + float min_width, min_height; + float max_width, max_height; + float gap; + uint8_t direction; +} FuseLayoutInfo; + +typedef enum { + FUSE_ANIMATION_LINEAR = 0, + FUSE_ANIMATION_EASE_IN, + FUSE_ANIMATION_EASE_OUT +} FuseAnimation; + +typedef enum { + FUSE_POINTER_NONE = 0, + FUSE_POINTER_RELEASED, + FUSE_POINTER_PRESSED, + FUSE_POINTER_ALT +} FusePointerState; + +typedef enum { + FUSE_DIRECTION_ROW = 0, + FUSE_DIRECTION_COLUMN, +} FuseDirection; + +/* canvas creation and drawing */ +extern FuseCanvas fuse_canvas_create(size_t memory_limit, FuseStyle base_style); // Canvas initialization. Contains all the context needed to draws. Doesn't care about what you're drawing to since the library emits normalizer coordinates. +extern void fuse_canvas_set(FuseCanvas); // Changes the canvas that the rest of the API outputs to by default. Normally you will only be drawing to a single instance at a time. +extern void fuse_canvas_debug(FuseCanvas, bool); // Enable debugging for a specific canvas. +extern void fuse_canvas_clear(FuseCanvas canvas); // Clears canvas to begin drawing the next frame. +extern void fuse_canvas_draw(FuseCanvas, FuseRendererCallback, void* data); // Sends all the draw commands to the renderer callback function. +extern void fuse_canvas_resize(FuseCanvas, float w, float h); // Updates the width and height of the active canvas. +extern void fuse_canvas_pointer(FuseCanvas, int pointer_state, float x, float y); // Update pointer state on active canvas. +extern void fuse_canvas_destroy(FuseCanvas); // Clear all the context and free all the memory. + +/* components */ +extern bool fuse_button(float x, float y, float width, float height, uint32_t selected, uint32_t hovered); // Base button component. Returns true if clicked on that frame. +extern void fuse_slider(float x, float y, float width, float height, uint32_t slider, uint32_t nob, float *nob_pos); +extern bool fuse_button_text(const char *text, float x, float y, float width, float height, uint32_t selected, uint32_t hovered); +extern bool fuse_checkbox_text(const char *text, bool *value); + +/* conditionals */ +extern bool fuse_element_is_hovered(const char *text); + +/* hover callbacks */ +extern void fuse_hovered(void (*op)(void*), void *data); // Register hover callback for subsequent elements. +extern void fuse_hovered_clear(); // Clear hover callback. + + +/* operations */ +extern int fuse_tooltip(const char *text); // Adds tooltip to the NEXT element. +extern void fuse_rotate_rad(); // Rotate next element by x radians +extern void fuse_rotate_deg(); // Rotate next element by x degrees. +extern float fuse_percent_x(float p); // Get percentage of width of the parent. Left of the secreen is 0%. +extern float fuse_percent_y(float p); // Get percentage of height of the screen. Top of the screen is 0%. +extern float fuse_tween_f(FuseAnimation anim, float f1, float f2, float duration, uint64_t time_ns); // Interpolates between floats. Takes in the animation duration in seconds and the current time in nanoseconds. +extern int fuse_tween_i(FuseAnimation anim, int i1, int i2, float duration, uint64_t time_ns); // Interpolates between integers. Takes in the animation duration in seconds and the current time in nanoseconds. +extern uint32_t fuse_tween_color(FuseAnimation anim, uint32_t c1, uint32_t c2, float duration, uint64_t time_ns); // Interpolates between colors. Takes in the animation duration in seconds and the current time in nanoseconds. + +/* layouting */ +#define FUSE(...) fuse_layout((FuseLayoutInfo){ __VA_ARGS__ }) +#define FUSE_LAYOUT_DIRECTION(dir) fuse_layout((FuseLayoutInfo){ .direction = (dir) }) +extern void fuse_layout(FuseLayoutInfo); +extern void fuse_div_begin(float x, float y, float width, float height, uint32_t color); +extern void fuse_div_end(); +extern void fuse_flex_begin(float x, float y, float width, float height, uint32_t color); +extern void fuse_flex_end(); + +/* 3d */ +extern void fuse_3d_object(); +extern void fuse_3d_point_at(); + +/* do we need this? im pretty sure the user can figure it out by using a step function + * you know like the Heaviside step function u(t) where u(t) = 1, t >= 0, u(t) = 0 otherwise + * + * animation function a(t) = f(t - t0) * (u(t1) - u(t0)) + * + * in fact we already have the tween functions, all we need it u(t) and boom + */ +extern int fuse_animate_i(FuseAnimation, int i1, int i2); +extern float fuse_animate_f(FuseAnimation, float f1, float f2, float f, bool loop); + + +#endif // _FUSE_H_ diff --git a/Fuse/fuse_backend.h b/Fuse/fuse_backend.h new file mode 100644 index 0000000..57f9f80 --- /dev/null +++ b/Fuse/fuse_backend.h @@ -0,0 +1,42 @@ +#ifndef FUSE_BACKEND_H +#define FUSE_BACKEND_H + +typedef enum { + FUSE_CMD_CLIP = 0, + FUSE_CMD_RECT, + FUSE_CMD_LINE, + FUSE_CMD_COUNT +} FuseCmdType; + +typedef struct { + float x, y, w, h; +} FuseClip; + +typedef struct { + float x, y, w, h; + uint32_t color; +} FuseRect; + +typedef struct { + float x1, y1, x2, y2; + float thickness; + uint32_t color; +} FuseLine; + +typedef struct { + union { + FuseClip clip; + FuseRect rect; + FuseLine line; + }; + uint8_t type; +} FuseCmd; + + +static const char* fuse_cmd_name[] = { + [FUSE_CMD_RECT] = "RECT", + [FUSE_CMD_CLIP] = "CLIP", + [FUSE_CMD_LINE] = "LINE", +}; + +#endif diff --git a/Fuse/fuse_backend_rend.c b/Fuse/fuse_backend_rend.c new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/Fuse/fuse_backend_rend.c diff --git a/Fuse/fuse_components.c b/Fuse/fuse_components.c new file mode 100644 index 0000000..22cc394 --- /dev/null +++ b/Fuse/fuse_components.c @@ -0,0 +1,3 @@ +#pragma once +#include "fuse.h" + diff --git a/Fuse/fuse_hash.c b/Fuse/fuse_hash.c new file mode 100644 index 0000000..666915b --- /dev/null +++ b/Fuse/fuse_hash.c @@ -0,0 +1,2 @@ +#pragma once +#include "fuse_internal.h"
\ No newline at end of file diff --git a/Fuse/fuse_internal.h b/Fuse/fuse_internal.h new file mode 100644 index 0000000..31fe702 --- /dev/null +++ b/Fuse/fuse_internal.h @@ -0,0 +1,63 @@ +#ifndef FUSE_INTERNAL_H +#define FUSE_INTERNAL_H + +#include "fuse.h" +#include "fuse_backend.h" + +#define FUSE_TODO \ + do { \ + fprintf(stderr, "FUSE TODO: %s() in %s:%d\n", __func__, __FILE__, __LINE__); \ + abort(); \ + } while(0) + + +typedef struct { + void *data; + size_t idk; +} FuseHash; + +struct fuse_canvas_t { + void *memory; // memory pointer to be slit into separate arenas + Arena arena; // arena the manages all our memory and will be split into smaller arenas + + FuseCmd *cmdbuffer_ptr; + + Arena element_data_arena; + FuseHash element_data; // persistent element data + + size_t cmdbuffer_head; + size_t cmdbuffer_size; + + size_t hot; + size_t active; + + size_t current_frame; + size_t current_id; + + float width; + float height; + + float pointer_x; + float pointer_y; + + uint64_t current_time_ns; + + int pointer_state; + + bool debug; +}; + +struct fuse_font_t { + int x; +}; + +struct fuse_style_t { + int x; +}; +struct fuse_window_t { + int x; +}; + +static FuseCanvas f__canvas; + +#endif diff --git a/Fuse/fuse_positioning.c b/Fuse/fuse_positioning.c new file mode 100644 index 0000000..3f22a0e --- /dev/null +++ b/Fuse/fuse_positioning.c @@ -0,0 +1,14 @@ +#pragma once +#include "fuse_internal.h" + +extern float +fuse_percent_x(float p) +{ + return p * f__canvas->width / 100; +} + +extern float +fuse_percent_y(float p) +{ + return p * f__canvas->height / 100; +} diff --git a/Fuse/fuse_test b/Fuse/fuse_test Binary files differnew file mode 100755 index 0000000..2188db0 --- /dev/null +++ b/Fuse/fuse_test diff --git a/Fuse/fuse_test.c b/Fuse/fuse_test.c new file mode 100644 index 0000000..a4b383d --- /dev/null +++ b/Fuse/fuse_test.c @@ -0,0 +1,25 @@ +#define FUSE_DEBUG +#include "fuse.h" +#include "fuse.c" + +#include "allocators.c" +#include <stdio.h> + +float nob = 0.5; +int main() { + + FuseCanvas canvas = fuse_canvas_create(1024, NULL); /* lowk 1kb enough? */ + + fuse_canvas_clear(canvas, 400, 400, FUSE_POINTER_RELEASED, 50, 50); + + if (fuse_button(0, 0, 100, 100, 0xFF00FF, 0xFF0000)) { + printf("pressed\n"); + } + + fuse_slider(0, 0, 100, 100, 0xFF00FF, 0xFF0000, &nob); + + fuse__cmdbuffer_print(); + + fuse_canvas_destroy(canvas); + return 0; +} diff --git a/Fuse/fuse_tween.c b/Fuse/fuse_tween.c new file mode 100644 index 0000000..2b47f41 --- /dev/null +++ b/Fuse/fuse_tween.c @@ -0,0 +1,68 @@ +#pragma once + +#include "fuse.h" +#include "fuse_internal.h" + +static inline float +fuse__get_coef(FuseAnimation anim, float t) +{ + switch (anim) { + case FUSE_ANIMATION_EASE_IN: return t * t; + case FUSE_ANIMATION_EASE_OUT: return t * (2.0f - t); + case FUSE_ANIMATION_LINEAR: + default: return t; + } +} + +static inline float +fuse__ping_pong(float duration_sec, uint64_t time_ns) +{ + if (duration_sec <= 0.0f) return 1.0f; + + uint64_t duration_ns = (uint64_t)(duration_sec * 1000000000.0f); + + // modulo against DOUBLE the duration to handle reversing + uint64_t loop_time_ns = time_ns % (duration_ns * 2); + + // in the second half REVERSE the clock direction + if (loop_time_ns > duration_ns) { + loop_time_ns = (duration_ns * 2) - loop_time_ns; + } + + return (float)loop_time_ns / (float)duration_ns; +} + +extern float +fuse_tween_f(FuseAnimation anim, float f1, float f2, float duration, uint64_t time_ns) +{ + float t = fuse__ping_pong(duration, time_ns); + float coef = fuse__get_coef(anim, t); + return f1 + coef * (f2 - f1); +} + +extern int +fuse_tween_i(FuseAnimation anim, int i1, int i2, float duration, uint64_t time_ns) +{ + float t = fuse__ping_pong(duration, time_ns); + float coef = fuse__get_coef(anim, t); + return (int)(i1 + coef * (i2 - i1)); +} + +extern uint32_t +fuse_tween_color(FuseAnimation anim, uint32_t c1, uint32_t c2, float duration, uint64_t time_ns) +{ + float t = fuse__ping_pong(duration, time_ns); + float coef = fuse__get_coef(anim, t); + + int r1 = (c1 >> 24) & 0xFF, r2 = (c2 >> 24) & 0xFF; + int g1 = (c1 >> 16) & 0xFF, g2 = (c2 >> 16) & 0xFF; + int b1 = (c1 >> 8) & 0xFF, b2 = (c2 >> 8) & 0xFF; + int a1 = c1 & 0xFF, a2 = c2 & 0xFF; + + uint32_t r = (uint32_t)(r1 + coef * (r2 - r1)); + uint32_t g = (uint32_t)(g1 + coef * (g2 - g1)); + uint32_t b = (uint32_t)(b1 + coef * (b2 - b1)); + uint32_t a = (uint32_t)(a1 + coef * (a2 - a1)); + + return (r << 24) | (g << 16) | (b << 8) | a; +} @@ -0,0 +1,39 @@ +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ diff --git a/Peak/README.md b/Peak/README.md new file mode 100644 index 0000000..ce16444 --- /dev/null +++ b/Peak/README.md @@ -0,0 +1,3 @@ +Single file platform library. + +MIT or Public Domain License. diff --git a/Peak/demos/demo.c b/Peak/demos/demo.c new file mode 100644 index 0000000..7aec9b3 --- /dev/null +++ b/Peak/demos/demo.c @@ -0,0 +1,65 @@ +#include <stdio.h> +#include <math.h> +#include <unistd.h> + +#define PEAK_IMPLEMENTATION +#include "../peak.h" + + +void print_window_resize(PeakEvent ev) { + printf("window: %u %u\n", ev.resize.width, ev.resize.height); +} + +void print_window_close(PeakEvent ev) { + printf("WINDOW CLOSE!!!!!!\nWOWWWOWAAAAAAAAAAAAAAAAAAAAAAAAh\n"); +} + +void print_mouse(PeakEvent ev) { + printf("mouse: state=%d type=%d pos=(%f, %f)\n", ev.pointer.state, ev.pointer.type, ev.pointer.x, ev.pointer.y); +} + +void print_key(PeakEvent ev) { + printf("key: key=%d mod=%d\n", ev.key.key, ev.key.mod); +} + +typedef void (*print_event_func)(PeakEvent ev); +print_event_func print_event[PEAK_EVENT_LAST] = { + [PEAK_EVENT_NONE] = print_mouse, + [PEAK_EVENT_WINDOW_RESIZE] = print_window_resize, + [PEAK_EVENT_WINDOW_CLOSE] = print_window_close, + [PEAK_EVENT_POINTER] = print_mouse, + [PEAK_EVENT_POINTER_CONNECTED] = print_mouse, + [PEAK_EVENT_POINTER_DISCONNECTED] = print_mouse, + [PEAK_EVENT_KEY_DOWN] = print_key, + [PEAK_EVENT_KEY_UP] = print_key, +}; + + +typedef struct { + char *msg; +} AppData; + +static AppData data; + +int main(int argc, char**argv) { + peak_init(); + int running = 1000000; + PeakEvent ev; + data.msg = "hello world"; + while (running--) { + while (peak_poll_events(&ev)) { + if (ev.type == PEAK_EVENT_NONE) + continue; + print_event[ev.type](ev); + switch (ev.type) { + case PEAK_EVENT_WINDOW_CLOSE: + printf("STOPPPPEEED\n"); + return 1; + } + } + // printf("frame: %d - %s\n", running, data.msg); + } + peak_quit(); + return 0; +} + diff --git a/Peak/demos/demo_replace_main.c b/Peak/demos/demo_replace_main.c new file mode 100644 index 0000000..3aedfaa --- /dev/null +++ b/Peak/demos/demo_replace_main.c @@ -0,0 +1,67 @@ +#include <stdio.h> +#include <math.h> +#include <unistd.h> + +#define PEAK_REPLACE_MAIN +#define PEAK_IMPLEMENTATION +#include "../peak.h" + + +void print_window_resize(PeakEvent ev) { + printf("window: %u %u\n", ev.resize.width, ev.resize.height); +} + +void print_window_close(PeakEvent ev) { + printf("WINDOW CLOSE!!!!!!\nWOWWWOWAAAAAAAAAAAAAAAAAAAAAAAAh\n"); +} + +void print_mouse(PeakEvent ev) { + printf("mouse: state=%d type=%d pos=(%f, %f)\n", ev.pointer.state, ev.pointer.type, ev.pointer.x, ev.pointer.y); +} + +void print_key(PeakEvent ev) { + printf("key: key=%d mod=%d\n", ev.key.key, ev.key.mod); +} + +typedef void (*print_event_func)(PeakEvent ev); +print_event_func print_event[PEAK_EVENT_LAST] = { + [PEAK_EVENT_NONE] = print_mouse, + [PEAK_EVENT_WINDOW_RESIZE] = print_window_resize, + [PEAK_EVENT_WINDOW_CLOSE] = print_window_close, + [PEAK_EVENT_POINTER] = print_mouse, + [PEAK_EVENT_POINTER_CONNECTED] = print_mouse, + [PEAK_EVENT_POINTER_DISCONNECTED] = print_mouse, + [PEAK_EVENT_KEY_DOWN] = print_key, + [PEAK_EVENT_KEY_UP] = print_key, +}; + + +typedef struct { + char *msg; +} AppData; + +static AppData data; + +int main(int argc, char**argv) { + data.msg = "Hello World"; + return PEAK_CONTINUE; +} + +void +peak_events(PeakEvent ev) +{ + print_event[ev.type](ev); + switch (ev.type) { + case PEAK_EVENT_WINDOW_CLOSE: + printf("stoppppeeed\n"); + peak_stop(); + break; + } +} + +void +peak_tick() +{ + printf("%s\n",data.msg); + sleep(1); +} diff --git a/Peak/peak.h b/Peak/peak.h new file mode 100644 index 0000000..581aa74 --- /dev/null +++ b/Peak/peak.h @@ -0,0 +1,895 @@ +/* =========================================================================== + * PEAK - Copyright @ Vasco Alves - See LICENSE at the end of file. + * + * Platform layer. + * It just works, don't think about it too much. + * + * =========================================================================== */ + +#ifndef PEAK_H +#define PEAK_H + +#define PEAK_MAJOR "0" +#define PEAK_MINOR "1" +#define PEAK_PATCH "1" + +/* CHANGE LOG + * 0.0.0 - @vasco - prototyping + * 0.1.0 - @vasco - linux x11 that automagically loads X11 DLL + * 0.1.1 - @vasco - fixed event handling on linux + * + * TODO: demo that stress tests the whole API + */ + +#include <assert.h> +#include <stdarg.h> +#include <stdint.h> +#include <stddef.h> +#include <stdbool.h> + +#if !( \ + (defined(__STDC__) && __STDC__ == 1 && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)\ +) +#error "Peak requires C99." +#endif + +/* + * Detecting a platform does not mean it's supported. + * Feel free to use these macros if you need them. + */ +#if defined(__wasm__) || defined(__wasm32__) || defined(__wasm64__) || defined(__EMSCRIPTEN__) + #define PEAK_WEB +#elif defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__TOS_WIN__) + #define PEAK_WIN32 + #ifndef WIN32_LEAN_AND_MEAN + #define WIN32_LEAN_AND_MEAN + #endif +#elif defined(__APPLE__) || defined(__MACH__) + #include <TargetConditionals.h> + #define PEAK_APPLE + #if TARGET_OS_IPHONE + #define PEAK_IOS + #else + #define PEAK_MACOS + #endif +#elif defined(__linux__) + #define PEAK_LINUX +#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__) + #define PEAK_BSD +#elif defined(__ANDROID__) + #define PEAK_ANDROID + #define PEAK_LINUX +#elif defined(__linux__) + #define PEAK_LINUX +#endif + +#if defined(PEAK_LINUX) || defined(PEAK_BSD) || defined(PEAK_APPLE) + #define PEAK_UNIX + #if !defined(PEAK_APPLE) && !defined(_POSIX_C_SOURCE) + #define _POSIX_C_SOURCE 200112L + #endif +#endif + +#ifdef PEAK_WEB + #define PEAK static inline +#else + #define PEAK extern +#endif + +typedef enum { + PEAK_KEYMOD_ALT = 0, + PEAK_KEYMOD_SHIFT, + PEAK_KEYMOD_CTRL, + PEAK_KEYMOD_CAPS, +} PeakKeyMod; + +typedef enum { + PEAK_KEY_UNKNOWN = 0, + PEAK_KEY_UP, PEAK_KEY_DOWN, PEAK_KEY_LEFT, PEAK_KEY_RIGHT, + PEAK_KEY_SPACE, PEAK_KEY_ESCAPE, PEAK_KEY_ENTER, + PEAK_KEY_A, PEAK_KEY_B, PEAK_KEY_C, PEAK_KEY_D, PEAK_KEY_E, PEAK_KEY_F, PEAK_KEY_G, PEAK_KEY_H, PEAK_KEY_I, + PEAK_KEY_J, PEAK_KEY_K, PEAK_KEY_L, PEAK_KEY_M, PEAK_KEY_N, PEAK_KEY_O, PEAK_KEY_P, PEAK_KEY_Q, PEAK_KEY_R, + PEAK_KEY_S, PEAK_KEY_T, PEAK_KEY_U, PEAK_KEY_V, PEAK_KEY_W, PEAK_KEY_X, PEAK_KEY_Y, PEAK_KEY_Z, +} PeakKeyCode; + +typedef enum { + PEAK_EVENT_NONE = 0, + PEAK_EVENT_KEY_DOWN, + PEAK_EVENT_KEY_UP, + PEAK_EVENT_WINDOW_CLOSE, + PEAK_EVENT_WINDOW_RESIZE, + PEAK_EVENT_POINTER, + PEAK_EVENT_POINTER_CONNECTED, + PEAK_EVENT_POINTER_DISCONNECTED, + PEAK_EVENT_LAST +} PeakEvenType; + +typedef enum { + PEAK_POINTER_MOVED = 0, + PEAK_POINTER_PRESSED, + PEAK_POINTER_RELEASED +} PeakPointerState; + +typedef enum { + PEAK_POINTER_LEFT = 0, + PEAK_POINTER_RIGHT, + PEAK_POINTER_MIDDLE, + PEAK_POINTER_TOUCH, +} PeakPointerType; + +typedef struct { + PeakEvenType type; + union { + struct { PeakKeyCode key; PeakKeyMod mod; } key; + struct { uint32_t width, height; } resize; + struct { PeakPointerState state; PeakPointerType type; float x, y; } pointer; + }; +} PeakEvent; + +/* Public API */ +PEAK void peak_init(void); // open a window and initialize graphics. called automatically if using peak_setup(). +PEAK void peak_quit(void); // close the window and release resources. called automatically if using peak_setup(). +PEAK bool peak_poll_events(PeakEvent *ev); // Poll the next event from the window queue. Returns true if an event was retrieved. +PEAK void peak_extensions(void); // retrieve gpu window surface extensions for native api access (e.g., vulkan/opengl). +PEAK void peak_blit(int offset_x, int offset_y, const uint32_t *rgba, size_t width, size_t height); // blit rgba pixels to the screen. +PEAK void peak_clip(int x, int y, size_t w, size_t h); // restrict all subsequent rendering operations to this bounding rectangle. +PEAK void peak_clip_reset(void); // reset clipping plane to window size. +PEAK void peak_draw_rectangle(int x, int y, size_t w, size_t h, uint32_t color); // draw a solid-color filled rectangle. +PEAK void peak_draw_rectangle_gradient(int x, int y, size_t w, size_t h, uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3); // fill rectangle interpolating four corner colors in clock-wise order. +PEAK void peak_draw_triangle(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t color); // draw a solid-color filled triangle. +PEAK void peak_draw_triangle_gradient(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t c0, uint32_t c1, uint32_t c2); // fill triangle with color interpolation clock-wise across its three vertices. +PEAK void peak_draw_line(int x0, int y0, int x1, int y1, size_t width, uint32_t color); // draw a line between two points. +PEAK void peak_draw_line_gradient(int x0, int y0, int x1, int y1, size_t width, uint32_t c0, uint32_t c1); // draw a line with a color gradient. + +/* Implemented by the platform */ +PEAK void peak_platform_window_open(); +PEAK void peak_platform_window_close(); +PEAK uint32_t *peak_platform_window_buffer(size_t *width, size_t *height); +PEAK bool peak_platform_epoll(PeakEvent *ev); + +/* + * He was wipping up amazing foods, like making happiness. + * Actual happiness? + * Actual happiness and joy. + * Oh the smell, it was so divine. + * He was making happiness!? + * Happiness in the kettle! + */ +#ifdef PEAK_REPLACE_MAIN +enum PeakReturn { PEAK_CONTINUE = 0, PEAK_STOP = 1 }; +extern int peak__main(int argc, char**argv); +extern void peak_events(PeakEvent ev); +extern void peak_tick(); +static bool running = true; +static inline void peak_stop() { running = false; } +#ifndef PEAK_WEB +#define main(...)\ +main(int argc, char **argv) {\ + assert(peak_events != 0 && "Declare peak_events() to handle window events.");\ + assert(peak_tick != 0 && "Declare peak_tick() to handle each frame ticks.");\ + peak_init();\ + int ret = peak__main(argc, argv);\ + if (ret != PEAK_CONTINUE) return ret;\ + PeakEvent ev;\ + while (running) {\ + while (running && peak_poll_events(&ev)) {\ + peak_events(ev);\ + }\ + peak_tick();\ + }\ + peak_quit();\ +}\ +int peak__main(__VA_ARGS__) +#else +#include <emscripten.h> +/* + * He was wipping up agony in the kettle. + * Actual pain? + * Boiling hatred in the kettle. + * The smell, it's pain. + * Boiling anger!? + * Yes, boiling anger. + */ + +static inline void +peak__emscripten_loop_step(void *arg) +{ + (void)arg; + PeakEvent ev; + while (peak_poll_events(&ev)) { + peak_events(ev); + } + + if (running) { + peak_tick(); + } else { + emscripten_cancel_main_loop(); + peak_quit(); + } +} + +#define main(...)\ + main(int argc, char **argv) {\ + _Static_assert(peak_events != 0, "When using peak_setup, declare peak_events() to handle window events.");\ + _Static_assert(peak_tick != 0, "When using peak_setup, declare peak_tick() to handle frame ticks.");\ + peak_init();\ + int ret = peak__main(argc, argv);\ + if (ret != PEAK_CONTINUE) return ret;\ + emscripten_set_main_loop_arg(peak__emscripten_loop_step, NULL, 0, 1);\ + return 0;\ + }\ + int peak__main(__VA_ARGS__) +#endif +#endif // PEAK_DONT_REPLACE_MAIN + +#endif // PEAK_H + +#ifdef PEAK_IMPLEMENTATION +#undef PEAK_IMPLEMENTATION + +#if defined(PEAK_WIN32) +/* --- Start of p_win32.c --- */ +#include <windows.h> + +void +peak_platform_window_open() +{ +} + +void +peak_platform_window_close() +{ +} + +uint32_t* +peak_platform_window_buffer(size_t *width, size_t *height) +{ +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ +} +/* --- End of p_win32.c --- */ +#elif defined(PEAK_LINUX) +/* --- Start of p_linux.c --- */ +#include <dlfcn.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xatom.h> +#include <X11/keysym.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> + +#define PEAK_X11_LINUX "/usr/lib/libX11.so.6" + +#define PEAK_LINUX_DEFAULT_WIDTH 800 +#define PEAK_LINUX_DEFAULT_HEIGHT 600 + +typedef Display* (*XOpenDisplay_t)(const char*); +typedef int (*XCloseDisplay_t)(Display*); +typedef Window (*XCreateSimpleWindow_t)(Display*, Window, int, int, unsigned int, unsigned int, unsigned int, unsigned long, unsigned long); +typedef int (*XStoreName_t)(Display*, Window, const char*); +typedef Atom (*XInternAtom_t)(Display*, const char*, Bool); +typedef Status (*XSetWMProtocols_t)(Display*, Window, Atom*, int); +typedef int (*XSelectInput_t)(Display*, Window, long); +typedef GC (*XCreateGC_t)(Display*, Window, unsigned long, XGCValues*); +typedef XImage* (*XCreateImage_t)(Display*, Visual*, unsigned int, int, int, char*, unsigned int, unsigned int, int, int); +typedef int (*XMapRaised_t)(Display*, Window); +typedef int (*XFlush_t)(Display*); +typedef int (*XFreeGC_t)(Display*, GC); +typedef int (*XDestroyWindow_t)(Display*, Window); +typedef int (*XPending_t)(Display*); +typedef int (*XNextEvent_t)(Display*, XEvent*); +typedef KeySym (*XLookupKeysym_t)(XKeyEvent*, int); +typedef int (*XPutImage_t)(Display*, Drawable, GC, XImage*, int, int, int, int, unsigned int, unsigned int); +typedef int (*XDefaultScreen_t)(Display*); +typedef Window (*XRootWindow_t)(Display*, int); +typedef unsigned long (*XBlackPixel_t)(Display*, int); +typedef Visual* (*XDefaultVisual_t)(Display*, int); +typedef int (*XDefaultDepth_t)(Display*, int); + +typedef struct { + XOpenDisplay_t XOpenDisplay; + XCloseDisplay_t XCloseDisplay; + XCreateSimpleWindow_t XCreateSimpleWindow; + XStoreName_t XStoreName; + XInternAtom_t XInternAtom; + XSetWMProtocols_t XSetWMProtocols; + XSelectInput_t XSelectInput; + XCreateGC_t XCreateGC; + XCreateImage_t XCreateImage; + XMapRaised_t XMapRaised; + XFlush_t XFlush; + XFreeGC_t XFreeGC; + XDestroyWindow_t XDestroyWindow; + XPending_t XPending; + XNextEvent_t XNextEvent; + XLookupKeysym_t XLookupKeysym; + XPutImage_t XPutImage; + XDefaultScreen_t XDefaultScreen; + XRootWindow_t XRootWindow; + XBlackPixel_t XBlackPixel; + XDefaultVisual_t XDefaultVisual; + XDefaultDepth_t XDefaultDepth; +} PeakX11Api; + +static PeakX11Api peak_x11; + +static int peak_load_x11(void *handle) { + peak_x11.XOpenDisplay = (XOpenDisplay_t)dlsym(handle, "XOpenDisplay"); + peak_x11.XCloseDisplay = (XCloseDisplay_t)dlsym(handle, "XCloseDisplay"); + peak_x11.XCreateSimpleWindow = (XCreateSimpleWindow_t)dlsym(handle, "XCreateSimpleWindow"); + peak_x11.XStoreName = (XStoreName_t)dlsym(handle, "XStoreName"); + peak_x11.XInternAtom = (XInternAtom_t)dlsym(handle, "XInternAtom"); + peak_x11.XSetWMProtocols = (XSetWMProtocols_t)dlsym(handle, "XSetWMProtocols"); + peak_x11.XSelectInput = (XSelectInput_t)dlsym(handle, "XSelectInput"); + peak_x11.XCreateGC = (XCreateGC_t)dlsym(handle, "XCreateGC"); + peak_x11.XCreateImage = (XCreateImage_t)dlsym(handle, "XCreateImage"); + peak_x11.XMapRaised = (XMapRaised_t)dlsym(handle, "XMapRaised"); + peak_x11.XFlush = (XFlush_t)dlsym(handle, "XFlush"); + peak_x11.XFreeGC = (XFreeGC_t)dlsym(handle, "XFreeGC"); + peak_x11.XDestroyWindow = (XDestroyWindow_t)dlsym(handle, "XDestroyWindow"); + peak_x11.XPending = (XPending_t)dlsym(handle, "XPending"); + peak_x11.XNextEvent = (XNextEvent_t)dlsym(handle, "XNextEvent"); + peak_x11.XLookupKeysym = (XLookupKeysym_t)dlsym(handle, "XLookupKeysym"); + peak_x11.XPutImage = (XPutImage_t)dlsym(handle, "XPutImage"); + peak_x11.XDefaultScreen = (XDefaultScreen_t)dlsym(handle, "XDefaultScreen"); + peak_x11.XRootWindow = (XRootWindow_t)dlsym(handle, "XRootWindow"); + peak_x11.XBlackPixel = (XBlackPixel_t)dlsym(handle, "XBlackPixel"); + peak_x11.XDefaultVisual = (XDefaultVisual_t)dlsym(handle, "XDefaultVisual"); + peak_x11.XDefaultDepth = (XDefaultDepth_t)dlsym(handle, "XDefaultDepth"); + + if (!peak_x11.XOpenDisplay || !peak_x11.XCloseDisplay || !peak_x11.XCreateSimpleWindow || + !peak_x11.XStoreName || !peak_x11.XInternAtom || !peak_x11.XSetWMProtocols || + !peak_x11.XSelectInput || !peak_x11.XCreateGC || !peak_x11.XCreateImage || + !peak_x11.XMapRaised || !peak_x11.XFlush || + !peak_x11.XFreeGC || !peak_x11.XDestroyWindow || !peak_x11.XPending || + !peak_x11.XNextEvent || !peak_x11.XLookupKeysym || !peak_x11.XPutImage || + !peak_x11.XDefaultScreen || !peak_x11.XRootWindow || !peak_x11.XBlackPixel || + !peak_x11.XDefaultVisual || !peak_x11.XDefaultDepth) { + return 0; + } + return 1; +} + + +typedef struct { + Display *display; + Atom wm_delete_window; + bool initialized; +} PeakLinux; + +typedef struct { + Window window; + GC gfx_ctx; /* GRAPHICS CONTEXT, not garbage collector lol */ +} PeakLinuxWindow; + +static PeakLinux peak_linux = {0}; +static PeakLinuxWindow peak_linux_window = {0}; +static XImage *peak_linux_ximage = NULL; +static uint32_t *peak_linux_buffer = NULL; +static size_t peak_linux_width = PEAK_LINUX_DEFAULT_WIDTH; +static size_t peak_linux_height = PEAK_LINUX_DEFAULT_HEIGHT; + +static PeakKeyCode +peak__x11_map_key(KeySym sym) +{ + if (sym >= XK_a && sym <= XK_z) return (PeakKeyCode)(PEAK_KEY_A + (int)(sym - XK_a)); + if (sym >= XK_A && sym <= XK_Z) return (PeakKeyCode)(PEAK_KEY_A + (int)(sym - XK_A)); + switch (sym) { + case XK_Up: return PEAK_KEY_UP; + case XK_Down: return PEAK_KEY_DOWN; + case XK_Left: return PEAK_KEY_LEFT; + case XK_Right: return PEAK_KEY_RIGHT; + case XK_space: return PEAK_KEY_SPACE; + case XK_Escape: return PEAK_KEY_ESCAPE; + case XK_Return: return PEAK_KEY_ENTER; + default: return PEAK_KEY_UNKNOWN; + } +} + +static PeakKeyMod +peak__x11_map_mod(unsigned int state) +{ + if (state & ControlMask) return PEAK_KEYMOD_CTRL; + if (state & Mod1Mask) return PEAK_KEYMOD_ALT; + if (state & ShiftMask) return PEAK_KEYMOD_SHIFT; + if (state & LockMask) return PEAK_KEYMOD_CAPS; + return (PeakKeyMod)0; +} + +void +peak_platform_window_open() +{ + void *x11_handle = dlopen(PEAK_X11_LINUX, RTLD_LOCAL | RTLD_NOW); + assert(x11_handle && "Failed to load X11 library. What system are you fucking using and abusing?"); + + int success = peak_load_x11(x11_handle); + assert(success && "Failed to open X11 display"); + + peak_linux.display = peak_x11.XOpenDisplay(NULL); + assert(peak_linux.display && "Failed to open X11 display"); + + /* Who design this API??? */ + int screen = DefaultScreen(peak_linux.display); + peak_linux_window.window = peak_x11.XCreateSimpleWindow(peak_linux.display, RootWindow(peak_linux.display, screen), 0, 0, peak_linux_width, peak_linux_height, 0, BlackPixel(peak_linux.display, screen), BlackPixel(peak_linux.display, screen)); + peak_x11.XStoreName(peak_linux.display, peak_linux_window.window, "Peak"); + peak_linux.wm_delete_window = peak_x11.XInternAtom(peak_linux.display, "WM_DELETE_WINDOW", False); + peak_x11.XSetWMProtocols(peak_linux.display, peak_linux_window.window, &peak_linux.wm_delete_window, 1); + peak_x11.XSelectInput(peak_linux.display, peak_linux_window.window, ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask); + peak_linux_window.gfx_ctx = peak_x11.XCreateGC(peak_linux.display, peak_linux_window.window, 0, NULL); + peak_linux_buffer = (uint32_t *)calloc(peak_linux_width * peak_linux_height, sizeof(uint32_t)); + assert(peak_linux_buffer && "Failed to allocate framebuffer"); + + /* Wrap the buffer in an XImage for XPutImage blitting */ + Visual *visual = DefaultVisual(peak_linux.display, screen); + int depth = DefaultDepth(peak_linux.display, screen); + + peak_linux_ximage = peak_x11.XCreateImage(peak_linux.display, visual, depth, ZPixmap, 0, (char *)peak_linux_buffer, peak_linux_width, peak_linux_height, 32, 0); + assert(peak_linux_ximage && "Failed to create XImage"); + + peak_x11.XMapRaised(peak_linux.display, peak_linux_window.window); + peak_x11.XFlush(peak_linux.display); + + peak_linux.initialized = true; +} + +void +peak_platform_window_close() +{ + if (!peak_linux.initialized) return; + + if (peak_linux_ximage) { + peak_linux_ximage->data = NULL; + XDestroyImage(peak_linux_ximage); + peak_linux_ximage = NULL; + } + + free(peak_linux_buffer); + peak_linux_buffer = NULL; + + peak_x11.XFreeGC(peak_linux.display, peak_linux_window.gfx_ctx); + peak_x11.XDestroyWindow(peak_linux.display, peak_linux_window.window); + peak_x11.XCloseDisplay(peak_linux.display); + + peak_linux.initialized = false; +} + +uint32_t * +peak_platform_window_buffer(size_t *width, size_t *height) +{ + *width = peak_linux_width; + *height = peak_linux_height; + return peak_linux_buffer; +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ + if (!peak_linux.initialized) return false; + + Display *dpy = peak_linux.display; + + while (peak_x11.XPending(dpy) > 0) { + XEvent xev; + peak_x11.XNextEvent(dpy, &xev); + + switch (xev.type) { + + case ClientMessage: + if ((Atom)xev.xclient.data.l[0] == peak_linux.wm_delete_window) { + ev->type = PEAK_EVENT_WINDOW_CLOSE; + printf("CLLOOOOOOOSEEEE"); + return true; + } + continue; + + case KeyPress: + case KeyRelease: { + KeySym sym = peak_x11.XLookupKeysym(&xev.xkey, 0); + ev->type = (xev.type == KeyPress) ? PEAK_EVENT_KEY_DOWN : PEAK_EVENT_KEY_UP; + ev->key.key = peak__x11_map_key(sym); + ev->key.mod = peak__x11_map_mod(xev.xkey.state); + return true; + } + + case ButtonPress: + case ButtonRelease: { + ev->type = PEAK_EVENT_POINTER; + ev->pointer.state = (xev.type == ButtonPress) ? PEAK_POINTER_PRESSED : PEAK_POINTER_RELEASED; + ev->pointer.x = (float)xev.xbutton.x; + ev->pointer.y = (float)xev.xbutton.y; + switch (xev.xbutton.button) { + case Button1: ev->pointer.type = PEAK_POINTER_LEFT; break; + case Button2: ev->pointer.type = PEAK_POINTER_MIDDLE; break; + case Button3: ev->pointer.type = PEAK_POINTER_RIGHT; break; + default: ev->pointer.type = PEAK_POINTER_LEFT; break; + } + return true; + } + + case MotionNotify: + ev->type = PEAK_EVENT_POINTER; + ev->pointer.state = PEAK_POINTER_MOVED; + ev->pointer.x = (float)xev.xmotion.x; + ev->pointer.y = (float)xev.xmotion.y; + if (xev.xmotion.state & Button3Mask) + ev->pointer.type = PEAK_POINTER_RIGHT; + else if (xev.xmotion.state & Button2Mask) + ev->pointer.type = PEAK_POINTER_MIDDLE; + else + ev->pointer.type = PEAK_POINTER_LEFT; + return true; + + case ConfigureNotify: + if ((size_t)xev.xconfigure.width != peak_linux_width || + (size_t)xev.xconfigure.height != peak_linux_height) { + ev->type = PEAK_EVENT_WINDOW_RESIZE; + ev->resize.width = (uint32_t)xev.xconfigure.width; + ev->resize.height = (uint32_t)xev.xconfigure.height; + return true; + } + continue; + + case Expose: + if (xev.xexpose.count == 0) { + peak_x11.XPutImage(dpy, peak_linux_window.window, peak_linux_window.gfx_ctx, peak_linux_ximage, 0, 0, 0, 0, peak_linux_width, peak_linux_height); + } + continue; + + default: + continue; + } + } + + peak_x11.XPutImage(dpy, peak_linux_window.window, peak_linux_window.gfx_ctx, peak_linux_ximage, 0, 0, 0, 0, peak_linux_width, peak_linux_height); + peak_x11.XFlush(dpy); + return false; +} +/* --- End of p_linux.c --- */ +#elif defined(PEAK_WEB) +/* --- Start of p_emscripten.c --- */ +#include <stdlib.h> +#include <string.h> +#include <stdbool.h> + +#define PEAK_CANVAS "#PeakCanvas" + +static PeakKeyCode map_key(const char *code); +static PeakKeyMod map_mod(const EmscriptenKeyboardEvent *keyEvent); +static EM_BOOL key_callback(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData); +static EM_BOOL mouse_callback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); +static EM_BOOL resize_callback(int eventType, const EmscriptenUiEvent *uiEvent, void *userData); + +void +peak_platform_window_open() +{ + emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, key_callback); + emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, key_callback); + emscripten_set_mousedown_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_mouseup_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_mousemove_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, resize_callback); +} + +void +peak_platform_window_close() +{ +} + +uint32_t* +peak_platform_window_buffer(size_t *width, size_t *height) +{ +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ + return 0; +} +/* --- End of p_emscripten.c --- */ +#endif + +/* --- Start of peak.c --- */ +static inline void peak__put_pixel(int x, int y, uint32_t color); +static inline uint32_t peak__lerp_color(uint32_t c0, uint32_t c1, float t); +static inline float peak__edge_cross(float ax, float ay, float bx, float by, float cx, float cy); + +static uint32_t *peak_window_buffer; +static size_t peak_window_width; +static size_t peak_window_height; +static int peak_clip_x; +static int peak_clip_y; +static size_t peak_clip_width; +static size_t peak_clip_height; + +void +peak__put_pixel(int x, int y, uint32_t color) +{ + if (x < peak_clip_x || x >= (int)(peak_clip_x + peak_clip_width) || + y < peak_clip_y || y >= (int)(peak_clip_y + peak_clip_height)) { + return; + } + if (x < 0 || x >= (int)peak_window_width || y < 0 || y >= (int)peak_window_height) { + return; + } + peak_window_buffer[y * peak_window_width + x] = color; +} + +uint32_t +peak__lerp_color(uint32_t c0, uint32_t c1, float t) +{ + if (t <= 0.0f) return c0; + if (t >= 1.0f) return c1; + + uint32_t a0 = (c0 >> 24) & 0xFF, a1 = (c1 >> 24) & 0xFF; + uint32_t r0 = (c0 >> 16) & 0xFF, r1 = (c1 >> 16) & 0xFF; + uint32_t g0 = (c0 >> 8) & 0xFF, g1 = (c1 >> 8) & 0xFF; + uint32_t b0 = c0 & 0xFF, b1 = c1 & 0xFF; + + uint32_t a = (uint32_t)(a0 + t * ((float)a1 - (float)a0)); + uint32_t r = (uint32_t)(r0 + t * ((float)r1 - (float)r0)); + uint32_t g = (uint32_t)(g0 + t * ((float)g1 - (float)g0)); + uint32_t b = (uint32_t)(b0 + t * ((float)b1 - (float)b0)); + + return (a << 24) | (r << 16) | (g << 8) | b; +} + +float +peak__edge_cross(float ax, float ay, float bx, float by, float cx, float cy) +{ + return (cx - ax) * (by - ay) - (cy - ay) * (bx - ax); +} + +void +peak_init(void) +{ + peak_platform_window_open(); + peak_window_buffer = peak_platform_window_buffer(&peak_window_width, &peak_window_height); + peak_clip_x = 0; + peak_clip_y = 0; + peak_clip_width = peak_window_width; + peak_clip_height = peak_window_height; +} + +void +peak_quit(void) +{ + peak_platform_window_close(); +} + +void +peak_extensions(void) +{ + // TODO +} + +bool +peak_poll_events(PeakEvent *ev) +{ + return peak_platform_epoll(ev); +} + +void +peak_blit(int offset_x, int offset_y, const uint32_t *rgba, size_t width, size_t height) +{ + for (size_t y = 0; y < height; ++y) { + int target_y = offset_y + (int)y; + if (target_y < peak_clip_y || target_y >= (int)(peak_clip_y + peak_clip_height) || + target_y < 0 || target_y >= (int)peak_window_height) continue; + + int start_x = offset_x < peak_clip_x ? peak_clip_x : offset_x; + int end_x = (offset_x + (int)width) > (int)(peak_clip_x + peak_clip_width) + ? (int)(peak_clip_x + peak_clip_width) + : (offset_x + (int)width); + + if (start_x >= end_x) continue; + + size_t src_offset_x = (size_t)(start_x - offset_x); + size_t copy_pixels = (size_t)(end_x - start_x); + + memcpy(&peak_window_buffer[target_y * peak_window_width + start_x], &rgba[y * width + src_offset_x], copy_pixels * sizeof(uint32_t)); + } +} + +void +peak_clip(int x, int y, size_t w, size_t h) +{ + peak_clip_x = x; + peak_clip_y = y; + peak_clip_width = w; + peak_clip_height = h; +} + +void +peak_clip_reset(void) +{ + peak_clip_x = 0; + peak_clip_y = 0; + peak_clip_width = peak_window_width; + peak_clip_height = peak_window_height; +} + +void +peak_draw_rectangle(int x, int y, size_t w, size_t h, uint32_t color) +{ + int start_x = (x < peak_clip_x) ? peak_clip_x : x; + int start_y = (y < peak_clip_y) ? peak_clip_y : y; + int end_x = (x + (int)w > (int)(peak_clip_x + peak_clip_width)) ? (int)(peak_clip_x + peak_clip_width) : x + (int)w; + int end_y = (y + (int)h > (int)(peak_clip_y + peak_clip_height)) ? (int)(peak_clip_y + peak_clip_height) : y + (int)h; + + for (int py = start_y; py < end_y; ++py) { + if (py < 0 || py >= (int)peak_window_height) continue; + for (int px = start_x; px < end_x; ++px) { + if (px < 0 || px >= (int)peak_window_width) continue; + peak_window_buffer[py * peak_window_width + px] = color; + } + } +} + +void +peak_draw_rectangle_gradient(int x, int y, size_t w, size_t h, uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3) +{ + for (size_t ry = 0; ry < h; ++ry) { + float ty = (h > 1) ? (float)ry / (float)(h - 1) : 0.0f; + uint32_t left_color = peak__lerp_color(c0, c3, ty); + uint32_t right_color = peak__lerp_color(c1, c2, ty); + + for (size_t rx = 0; rx < w; ++rx) { + float tx = (w > 1) ? (float)rx / (float)(w - 1) : 0.0f; + uint32_t final_color = peak__lerp_color(left_color, right_color, tx); + peak__put_pixel(x + (int)rx, y + (int)ry, final_color); + } + } +} + +void +peak_draw_triangle(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t color) +{ + int min_x = (x0 < x1) ? ((x0 < x2) ? x0 : x2) : ((x1 < x2) ? x1 : x2); + int max_x = (x0 > x1) ? ((x0 > x2) ? x0 : x2) : ((x1 > x2) ? x1 : x2); + int min_y = (y0 < y1) ? ((y0 < y2) ? y0 : y2) : ((y1 < y2) ? y1 : y2); + int max_y = (y0 > y1) ? ((y0 > y2) ? y0 : y2) : ((y1 > y2) ? y1 : y2); + + float area = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x2, (float)y2); + if (area == 0.0f) return; + + for (int y = min_y; y <= max_y; ++y) { + for (int x = min_x; x <= max_x; ++x) { + float w0 = peak__edge_cross((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y); + float w1 = peak__edge_cross((float)x2, (float)y2, (float)x0, (float)y0, (float)x, (float)y); + float w2 = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x, (float)y); + + if ((w0 >= 0 && w1 >= 0 && w2 >= 0) || (w0 <= 0 && w1 <= 0 && w2 <= 0)) { + peak__put_pixel(x, y, color); + } + } + } +} + +void +peak_draw_triangle_gradient(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t c0, uint32_t c1, uint32_t c2) +{ + int min_x = (x0 < x1) ? ((x0 < x2) ? x0 : x2) : ((x1 < x2) ? x1 : x2); + int max_x = (x0 > x1) ? ((x0 > x2) ? x0 : x2) : ((x1 > x2) ? x1 : x2); + int min_y = (y0 < y1) ? ((y0 < y2) ? y0 : y2) : ((y1 < y2) ? y1 : y2); + int max_y = (y0 > y1) ? ((y0 > y2) ? y0 : y2) : ((y1 > y2) ? y1 : y2); + + float area = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x2, (float)y2); + if (area == 0.0f) return; + + for (int y = min_y; y <= max_y; ++y) { + for (int x = min_x; x <= max_x; ++x) { + float w0 = peak__edge_cross((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y) / area; + float w1 = peak__edge_cross((float)x2, (float)y2, (float)x0, (float)y0, (float)x, (float)y) / area; + float w2 = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x, (float)y) / area; + + if (w0 >= 0.0f && w1 >= 0.0f && w2 >= 0.0f) { + uint32_t col_a = peak__lerp_color(c0, c1, w1 / (w0 + w1 + 1e-6f)); + uint32_t final_color = peak__lerp_color(col_a, c2, w2); + peak__put_pixel(x, y, final_color); + } + } + } +} + +void +peak_draw_line(int x0, int y0, int x1, int y1, size_t width, uint32_t color) +{ + int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = dx + dy, e2; + + int half_w = (int)width / 2; + + while (1) { + /* Draw square footprint for line thickness */ + for (int ox = -half_w; ox <= half_w; ++ox) { + for (int oy = -half_w; oy <= half_w; ++oy) { + peak__put_pixel(x0 + ox, y0 + oy, color); + } + } + if (x0 == x1 && y0 == y1) break; + e2 = 2 * err; + if (e2 >= dy) { err += dy; x0 += sx; } + if (e2 <= dx) { err += dx; y0 += sy; } + } +} + +void +peak_draw_line_gradient(int x0, int y0, int x1, int y1, size_t width, uint32_t c0, uint32_t c1) +{ + float total_dist = sqrtf((float)((x1 - x0)*(x1 - x0) + (y1 - y0)*(y1 - y0))); + int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = dx + dy, e2; + + int orig_x0 = x0, orig_y0 = y0; + int half_w = (int)width / 2; + + while (1) { + float current_dist = sqrtf((float)((x0 - orig_x0)*(x0 - orig_x0) + (y0 - orig_y0)*(y0 - orig_y0))); + float t = (total_dist > 0.0f) ? (current_dist / total_dist) : 0.0f; + uint32_t color = peak__lerp_color(c0, c1, t); + + for (int ox = -half_w; ox <= half_w; ++ox) { + for (int oy = -half_w; oy <= half_w; ++oy) { + peak__put_pixel(x0 + ox, y0 + oy, color); + } + } + + if (x0 == x1 && y0 == y1) break; + e2 = 2 * err; + if (e2 >= dy) { err += dy; x0 += sx; } + if (e2 <= dx) { err += dx; y0 += sy; } + } +} + +/* --- End of peak.c --- */ + +#endif // PEAK_IMPLEMENTATION + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/Peak/src/p_emscripten.c b/Peak/src/p_emscripten.c new file mode 100644 index 0000000..dc558f5 --- /dev/null +++ b/Peak/src/p_emscripten.c @@ -0,0 +1,38 @@ +#include <stdlib.h> +#include <string.h> +#include <stdbool.h> + +#define PEAK_CANVAS "#PeakCanvas" + +static PeakKeyCode map_key(const char *code); +static PeakKeyMod map_mod(const EmscriptenKeyboardEvent *keyEvent); +static EM_BOOL key_callback(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData); +static EM_BOOL mouse_callback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); +static EM_BOOL resize_callback(int eventType, const EmscriptenUiEvent *uiEvent, void *userData); + +void +peak_platform_window_open() +{ + emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, key_callback); + emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, key_callback); + emscripten_set_mousedown_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_mouseup_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_mousemove_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, resize_callback); +} + +void +peak_platform_window_close() +{ +} + +uint32_t* +peak_platform_window_buffer(size_t *width, size_t *height) +{ +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ + return 0; +} diff --git a/Peak/src/p_linux.c b/Peak/src/p_linux.c new file mode 100644 index 0000000..c3d70bf --- /dev/null +++ b/Peak/src/p_linux.c @@ -0,0 +1,295 @@ +#include <dlfcn.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xatom.h> +#include <X11/keysym.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> + +#define PEAK_X11_LINUX "/usr/lib/libX11.so.6" + +#define PEAK_LINUX_DEFAULT_WIDTH 800 +#define PEAK_LINUX_DEFAULT_HEIGHT 600 + +typedef Display* (*XOpenDisplay_t)(const char*); +typedef int (*XCloseDisplay_t)(Display*); +typedef Window (*XCreateSimpleWindow_t)(Display*, Window, int, int, unsigned int, unsigned int, unsigned int, unsigned long, unsigned long); +typedef int (*XStoreName_t)(Display*, Window, const char*); +typedef Atom (*XInternAtom_t)(Display*, const char*, Bool); +typedef Status (*XSetWMProtocols_t)(Display*, Window, Atom*, int); +typedef int (*XSelectInput_t)(Display*, Window, long); +typedef GC (*XCreateGC_t)(Display*, Window, unsigned long, XGCValues*); +typedef XImage* (*XCreateImage_t)(Display*, Visual*, unsigned int, int, int, char*, unsigned int, unsigned int, int, int); +typedef int (*XMapRaised_t)(Display*, Window); +typedef int (*XFlush_t)(Display*); +typedef int (*XFreeGC_t)(Display*, GC); +typedef int (*XDestroyWindow_t)(Display*, Window); +typedef int (*XPending_t)(Display*); +typedef int (*XNextEvent_t)(Display*, XEvent*); +typedef KeySym (*XLookupKeysym_t)(XKeyEvent*, int); +typedef int (*XPutImage_t)(Display*, Drawable, GC, XImage*, int, int, int, int, unsigned int, unsigned int); +typedef int (*XDefaultScreen_t)(Display*); +typedef Window (*XRootWindow_t)(Display*, int); +typedef unsigned long (*XBlackPixel_t)(Display*, int); +typedef Visual* (*XDefaultVisual_t)(Display*, int); +typedef int (*XDefaultDepth_t)(Display*, int); + +typedef struct { + XOpenDisplay_t XOpenDisplay; + XCloseDisplay_t XCloseDisplay; + XCreateSimpleWindow_t XCreateSimpleWindow; + XStoreName_t XStoreName; + XInternAtom_t XInternAtom; + XSetWMProtocols_t XSetWMProtocols; + XSelectInput_t XSelectInput; + XCreateGC_t XCreateGC; + XCreateImage_t XCreateImage; + XMapRaised_t XMapRaised; + XFlush_t XFlush; + XFreeGC_t XFreeGC; + XDestroyWindow_t XDestroyWindow; + XPending_t XPending; + XNextEvent_t XNextEvent; + XLookupKeysym_t XLookupKeysym; + XPutImage_t XPutImage; + XDefaultScreen_t XDefaultScreen; + XRootWindow_t XRootWindow; + XBlackPixel_t XBlackPixel; + XDefaultVisual_t XDefaultVisual; + XDefaultDepth_t XDefaultDepth; +} PeakX11Api; + +static PeakX11Api peak_x11; + +static int peak_load_x11(void *handle) { + peak_x11.XOpenDisplay = (XOpenDisplay_t)dlsym(handle, "XOpenDisplay"); + peak_x11.XCloseDisplay = (XCloseDisplay_t)dlsym(handle, "XCloseDisplay"); + peak_x11.XCreateSimpleWindow = (XCreateSimpleWindow_t)dlsym(handle, "XCreateSimpleWindow"); + peak_x11.XStoreName = (XStoreName_t)dlsym(handle, "XStoreName"); + peak_x11.XInternAtom = (XInternAtom_t)dlsym(handle, "XInternAtom"); + peak_x11.XSetWMProtocols = (XSetWMProtocols_t)dlsym(handle, "XSetWMProtocols"); + peak_x11.XSelectInput = (XSelectInput_t)dlsym(handle, "XSelectInput"); + peak_x11.XCreateGC = (XCreateGC_t)dlsym(handle, "XCreateGC"); + peak_x11.XCreateImage = (XCreateImage_t)dlsym(handle, "XCreateImage"); + peak_x11.XMapRaised = (XMapRaised_t)dlsym(handle, "XMapRaised"); + peak_x11.XFlush = (XFlush_t)dlsym(handle, "XFlush"); + peak_x11.XFreeGC = (XFreeGC_t)dlsym(handle, "XFreeGC"); + peak_x11.XDestroyWindow = (XDestroyWindow_t)dlsym(handle, "XDestroyWindow"); + peak_x11.XPending = (XPending_t)dlsym(handle, "XPending"); + peak_x11.XNextEvent = (XNextEvent_t)dlsym(handle, "XNextEvent"); + peak_x11.XLookupKeysym = (XLookupKeysym_t)dlsym(handle, "XLookupKeysym"); + peak_x11.XPutImage = (XPutImage_t)dlsym(handle, "XPutImage"); + peak_x11.XDefaultScreen = (XDefaultScreen_t)dlsym(handle, "XDefaultScreen"); + peak_x11.XRootWindow = (XRootWindow_t)dlsym(handle, "XRootWindow"); + peak_x11.XBlackPixel = (XBlackPixel_t)dlsym(handle, "XBlackPixel"); + peak_x11.XDefaultVisual = (XDefaultVisual_t)dlsym(handle, "XDefaultVisual"); + peak_x11.XDefaultDepth = (XDefaultDepth_t)dlsym(handle, "XDefaultDepth"); + + if (!peak_x11.XOpenDisplay || !peak_x11.XCloseDisplay || !peak_x11.XCreateSimpleWindow || + !peak_x11.XStoreName || !peak_x11.XInternAtom || !peak_x11.XSetWMProtocols || + !peak_x11.XSelectInput || !peak_x11.XCreateGC || !peak_x11.XCreateImage || + !peak_x11.XMapRaised || !peak_x11.XFlush || + !peak_x11.XFreeGC || !peak_x11.XDestroyWindow || !peak_x11.XPending || + !peak_x11.XNextEvent || !peak_x11.XLookupKeysym || !peak_x11.XPutImage || + !peak_x11.XDefaultScreen || !peak_x11.XRootWindow || !peak_x11.XBlackPixel || + !peak_x11.XDefaultVisual || !peak_x11.XDefaultDepth) { + return 0; + } + return 1; +} + + +typedef struct { + Display *display; + Atom wm_delete_window; + bool initialized; +} PeakLinux; + +typedef struct { + Window window; + GC gfx_ctx; /* GRAPHICS CONTEXT, not garbage collector lol */ +} PeakLinuxWindow; + +static PeakLinux peak_linux = {0}; +static PeakLinuxWindow peak_linux_window = {0}; +static XImage *peak_linux_ximage = NULL; +static uint32_t *peak_linux_buffer = NULL; +static size_t peak_linux_width = PEAK_LINUX_DEFAULT_WIDTH; +static size_t peak_linux_height = PEAK_LINUX_DEFAULT_HEIGHT; + +static PeakKeyCode +peak__x11_map_key(KeySym sym) +{ + if (sym >= XK_a && sym <= XK_z) return (PeakKeyCode)(PEAK_KEY_A + (int)(sym - XK_a)); + if (sym >= XK_A && sym <= XK_Z) return (PeakKeyCode)(PEAK_KEY_A + (int)(sym - XK_A)); + switch (sym) { + case XK_Up: return PEAK_KEY_UP; + case XK_Down: return PEAK_KEY_DOWN; + case XK_Left: return PEAK_KEY_LEFT; + case XK_Right: return PEAK_KEY_RIGHT; + case XK_space: return PEAK_KEY_SPACE; + case XK_Escape: return PEAK_KEY_ESCAPE; + case XK_Return: return PEAK_KEY_ENTER; + default: return PEAK_KEY_UNKNOWN; + } +} + +static PeakKeyMod +peak__x11_map_mod(unsigned int state) +{ + if (state & ControlMask) return PEAK_KEYMOD_CTRL; + if (state & Mod1Mask) return PEAK_KEYMOD_ALT; + if (state & ShiftMask) return PEAK_KEYMOD_SHIFT; + if (state & LockMask) return PEAK_KEYMOD_CAPS; + return (PeakKeyMod)0; +} + +void +peak_platform_window_open() +{ + void *x11_handle = dlopen(PEAK_X11_LINUX, RTLD_LOCAL | RTLD_NOW); + assert(x11_handle && "Failed to load X11 library. What system are you fucking using and abusing?"); + + int success = peak_load_x11(x11_handle); + assert(success && "Failed to open X11 display"); + + peak_linux.display = peak_x11.XOpenDisplay(NULL); + assert(peak_linux.display && "Failed to open X11 display"); + + /* Who design this API??? */ + int screen = DefaultScreen(peak_linux.display); + peak_linux_window.window = peak_x11.XCreateSimpleWindow(peak_linux.display, RootWindow(peak_linux.display, screen), 0, 0, peak_linux_width, peak_linux_height, 0, BlackPixel(peak_linux.display, screen), BlackPixel(peak_linux.display, screen)); + peak_x11.XStoreName(peak_linux.display, peak_linux_window.window, "Peak"); + peak_linux.wm_delete_window = peak_x11.XInternAtom(peak_linux.display, "WM_DELETE_WINDOW", False); + peak_x11.XSetWMProtocols(peak_linux.display, peak_linux_window.window, &peak_linux.wm_delete_window, 1); + peak_x11.XSelectInput(peak_linux.display, peak_linux_window.window, ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask); + peak_linux_window.gfx_ctx = peak_x11.XCreateGC(peak_linux.display, peak_linux_window.window, 0, NULL); + peak_linux_buffer = (uint32_t *)calloc(peak_linux_width * peak_linux_height, sizeof(uint32_t)); + assert(peak_linux_buffer && "Failed to allocate framebuffer"); + + /* Wrap the buffer in an XImage for XPutImage blitting */ + Visual *visual = DefaultVisual(peak_linux.display, screen); + int depth = DefaultDepth(peak_linux.display, screen); + + peak_linux_ximage = peak_x11.XCreateImage(peak_linux.display, visual, depth, ZPixmap, 0, (char *)peak_linux_buffer, peak_linux_width, peak_linux_height, 32, 0); + assert(peak_linux_ximage && "Failed to create XImage"); + + peak_x11.XMapRaised(peak_linux.display, peak_linux_window.window); + peak_x11.XFlush(peak_linux.display); + + peak_linux.initialized = true; +} + +void +peak_platform_window_close() +{ + if (!peak_linux.initialized) return; + + if (peak_linux_ximage) { + peak_linux_ximage->data = NULL; + XDestroyImage(peak_linux_ximage); + peak_linux_ximage = NULL; + } + + free(peak_linux_buffer); + peak_linux_buffer = NULL; + + peak_x11.XFreeGC(peak_linux.display, peak_linux_window.gfx_ctx); + peak_x11.XDestroyWindow(peak_linux.display, peak_linux_window.window); + peak_x11.XCloseDisplay(peak_linux.display); + + peak_linux.initialized = false; +} + +uint32_t * +peak_platform_window_buffer(size_t *width, size_t *height) +{ + *width = peak_linux_width; + *height = peak_linux_height; + return peak_linux_buffer; +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ + if (!peak_linux.initialized) return false; + + Display *dpy = peak_linux.display; + + while (peak_x11.XPending(dpy) > 0) { + XEvent xev; + peak_x11.XNextEvent(dpy, &xev); + + switch (xev.type) { + + case ClientMessage: + if ((Atom)xev.xclient.data.l[0] == peak_linux.wm_delete_window) { + ev->type = PEAK_EVENT_WINDOW_CLOSE; + printf("CLLOOOOOOOSEEEE"); + return true; + } + continue; + + case KeyPress: + case KeyRelease: { + KeySym sym = peak_x11.XLookupKeysym(&xev.xkey, 0); + ev->type = (xev.type == KeyPress) ? PEAK_EVENT_KEY_DOWN : PEAK_EVENT_KEY_UP; + ev->key.key = peak__x11_map_key(sym); + ev->key.mod = peak__x11_map_mod(xev.xkey.state); + return true; + } + + case ButtonPress: + case ButtonRelease: { + ev->type = PEAK_EVENT_POINTER; + ev->pointer.state = (xev.type == ButtonPress) ? PEAK_POINTER_PRESSED : PEAK_POINTER_RELEASED; + ev->pointer.x = (float)xev.xbutton.x; + ev->pointer.y = (float)xev.xbutton.y; + switch (xev.xbutton.button) { + case Button1: ev->pointer.type = PEAK_POINTER_LEFT; break; + case Button2: ev->pointer.type = PEAK_POINTER_MIDDLE; break; + case Button3: ev->pointer.type = PEAK_POINTER_RIGHT; break; + default: ev->pointer.type = PEAK_POINTER_LEFT; break; + } + return true; + } + + case MotionNotify: + ev->type = PEAK_EVENT_POINTER; + ev->pointer.state = PEAK_POINTER_MOVED; + ev->pointer.x = (float)xev.xmotion.x; + ev->pointer.y = (float)xev.xmotion.y; + if (xev.xmotion.state & Button3Mask) + ev->pointer.type = PEAK_POINTER_RIGHT; + else if (xev.xmotion.state & Button2Mask) + ev->pointer.type = PEAK_POINTER_MIDDLE; + else + ev->pointer.type = PEAK_POINTER_LEFT; + return true; + + case ConfigureNotify: + if ((size_t)xev.xconfigure.width != peak_linux_width || + (size_t)xev.xconfigure.height != peak_linux_height) { + ev->type = PEAK_EVENT_WINDOW_RESIZE; + ev->resize.width = (uint32_t)xev.xconfigure.width; + ev->resize.height = (uint32_t)xev.xconfigure.height; + return true; + } + continue; + + case Expose: + if (xev.xexpose.count == 0) { + peak_x11.XPutImage(dpy, peak_linux_window.window, peak_linux_window.gfx_ctx, peak_linux_ximage, 0, 0, 0, 0, peak_linux_width, peak_linux_height); + } + continue; + + default: + continue; + } + } + + peak_x11.XPutImage(dpy, peak_linux_window.window, peak_linux_window.gfx_ctx, peak_linux_ximage, 0, 0, 0, 0, peak_linux_width, peak_linux_height); + peak_x11.XFlush(dpy); + return false; +} diff --git a/Peak/src/p_win32.c b/Peak/src/p_win32.c new file mode 100644 index 0000000..16fab7f --- /dev/null +++ b/Peak/src/p_win32.c @@ -0,0 +1,21 @@ +#include <windows.h> + +void +peak_platform_window_open() +{ +} + +void +peak_platform_window_close() +{ +} + +uint32_t* +peak_platform_window_buffer(size_t *width, size_t *height) +{ +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ +} diff --git a/Peak/src/peak.c b/Peak/src/peak.c new file mode 100644 index 0000000..5e09070 --- /dev/null +++ b/Peak/src/peak.c @@ -0,0 +1,254 @@ +static inline void peak__put_pixel(int x, int y, uint32_t color); +static inline uint32_t peak__lerp_color(uint32_t c0, uint32_t c1, float t); +static inline float peak__edge_cross(float ax, float ay, float bx, float by, float cx, float cy); + +static uint32_t *peak_window_buffer; +static size_t peak_window_width; +static size_t peak_window_height; +static int peak_clip_x; +static int peak_clip_y; +static size_t peak_clip_width; +static size_t peak_clip_height; + +void +peak__put_pixel(int x, int y, uint32_t color) +{ + if (x < peak_clip_x || x >= (int)(peak_clip_x + peak_clip_width) || + y < peak_clip_y || y >= (int)(peak_clip_y + peak_clip_height)) { + return; + } + if (x < 0 || x >= (int)peak_window_width || y < 0 || y >= (int)peak_window_height) { + return; + } + peak_window_buffer[y * peak_window_width + x] = color; +} + +uint32_t +peak__lerp_color(uint32_t c0, uint32_t c1, float t) +{ + if (t <= 0.0f) return c0; + if (t >= 1.0f) return c1; + + uint32_t a0 = (c0 >> 24) & 0xFF, a1 = (c1 >> 24) & 0xFF; + uint32_t r0 = (c0 >> 16) & 0xFF, r1 = (c1 >> 16) & 0xFF; + uint32_t g0 = (c0 >> 8) & 0xFF, g1 = (c1 >> 8) & 0xFF; + uint32_t b0 = c0 & 0xFF, b1 = c1 & 0xFF; + + uint32_t a = (uint32_t)(a0 + t * ((float)a1 - (float)a0)); + uint32_t r = (uint32_t)(r0 + t * ((float)r1 - (float)r0)); + uint32_t g = (uint32_t)(g0 + t * ((float)g1 - (float)g0)); + uint32_t b = (uint32_t)(b0 + t * ((float)b1 - (float)b0)); + + return (a << 24) | (r << 16) | (g << 8) | b; +} + +float +peak__edge_cross(float ax, float ay, float bx, float by, float cx, float cy) +{ + return (cx - ax) * (by - ay) - (cy - ay) * (bx - ax); +} + +void +peak_init(void) +{ + peak_platform_window_open(); + peak_window_buffer = peak_platform_window_buffer(&peak_window_width, &peak_window_height); + peak_clip_x = 0; + peak_clip_y = 0; + peak_clip_width = peak_window_width; + peak_clip_height = peak_window_height; +} + +void +peak_quit(void) +{ + peak_platform_window_close(); +} + +void +peak_extensions(void) +{ + // TODO +} + +bool +peak_poll_events(PeakEvent *ev) +{ + return peak_platform_epoll(ev); +} + +void +peak_blit(int offset_x, int offset_y, const uint32_t *rgba, size_t width, size_t height) +{ + for (size_t y = 0; y < height; ++y) { + int target_y = offset_y + (int)y; + if (target_y < peak_clip_y || target_y >= (int)(peak_clip_y + peak_clip_height) || + target_y < 0 || target_y >= (int)peak_window_height) continue; + + int start_x = offset_x < peak_clip_x ? peak_clip_x : offset_x; + int end_x = (offset_x + (int)width) > (int)(peak_clip_x + peak_clip_width) + ? (int)(peak_clip_x + peak_clip_width) + : (offset_x + (int)width); + + if (start_x >= end_x) continue; + + size_t src_offset_x = (size_t)(start_x - offset_x); + size_t copy_pixels = (size_t)(end_x - start_x); + + memcpy(&peak_window_buffer[target_y * peak_window_width + start_x], &rgba[y * width + src_offset_x], copy_pixels * sizeof(uint32_t)); + } +} + +void +peak_clip(int x, int y, size_t w, size_t h) +{ + peak_clip_x = x; + peak_clip_y = y; + peak_clip_width = w; + peak_clip_height = h; +} + +void +peak_clip_reset(void) +{ + peak_clip_x = 0; + peak_clip_y = 0; + peak_clip_width = peak_window_width; + peak_clip_height = peak_window_height; +} + +void +peak_draw_rectangle(int x, int y, size_t w, size_t h, uint32_t color) +{ + int start_x = (x < peak_clip_x) ? peak_clip_x : x; + int start_y = (y < peak_clip_y) ? peak_clip_y : y; + int end_x = (x + (int)w > (int)(peak_clip_x + peak_clip_width)) ? (int)(peak_clip_x + peak_clip_width) : x + (int)w; + int end_y = (y + (int)h > (int)(peak_clip_y + peak_clip_height)) ? (int)(peak_clip_y + peak_clip_height) : y + (int)h; + + for (int py = start_y; py < end_y; ++py) { + if (py < 0 || py >= (int)peak_window_height) continue; + for (int px = start_x; px < end_x; ++px) { + if (px < 0 || px >= (int)peak_window_width) continue; + peak_window_buffer[py * peak_window_width + px] = color; + } + } +} + +void +peak_draw_rectangle_gradient(int x, int y, size_t w, size_t h, uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3) +{ + for (size_t ry = 0; ry < h; ++ry) { + float ty = (h > 1) ? (float)ry / (float)(h - 1) : 0.0f; + uint32_t left_color = peak__lerp_color(c0, c3, ty); + uint32_t right_color = peak__lerp_color(c1, c2, ty); + + for (size_t rx = 0; rx < w; ++rx) { + float tx = (w > 1) ? (float)rx / (float)(w - 1) : 0.0f; + uint32_t final_color = peak__lerp_color(left_color, right_color, tx); + peak__put_pixel(x + (int)rx, y + (int)ry, final_color); + } + } +} + +void +peak_draw_triangle(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t color) +{ + int min_x = (x0 < x1) ? ((x0 < x2) ? x0 : x2) : ((x1 < x2) ? x1 : x2); + int max_x = (x0 > x1) ? ((x0 > x2) ? x0 : x2) : ((x1 > x2) ? x1 : x2); + int min_y = (y0 < y1) ? ((y0 < y2) ? y0 : y2) : ((y1 < y2) ? y1 : y2); + int max_y = (y0 > y1) ? ((y0 > y2) ? y0 : y2) : ((y1 > y2) ? y1 : y2); + + float area = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x2, (float)y2); + if (area == 0.0f) return; + + for (int y = min_y; y <= max_y; ++y) { + for (int x = min_x; x <= max_x; ++x) { + float w0 = peak__edge_cross((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y); + float w1 = peak__edge_cross((float)x2, (float)y2, (float)x0, (float)y0, (float)x, (float)y); + float w2 = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x, (float)y); + + if ((w0 >= 0 && w1 >= 0 && w2 >= 0) || (w0 <= 0 && w1 <= 0 && w2 <= 0)) { + peak__put_pixel(x, y, color); + } + } + } +} + +void +peak_draw_triangle_gradient(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t c0, uint32_t c1, uint32_t c2) +{ + int min_x = (x0 < x1) ? ((x0 < x2) ? x0 : x2) : ((x1 < x2) ? x1 : x2); + int max_x = (x0 > x1) ? ((x0 > x2) ? x0 : x2) : ((x1 > x2) ? x1 : x2); + int min_y = (y0 < y1) ? ((y0 < y2) ? y0 : y2) : ((y1 < y2) ? y1 : y2); + int max_y = (y0 > y1) ? ((y0 > y2) ? y0 : y2) : ((y1 > y2) ? y1 : y2); + + float area = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x2, (float)y2); + if (area == 0.0f) return; + + for (int y = min_y; y <= max_y; ++y) { + for (int x = min_x; x <= max_x; ++x) { + float w0 = peak__edge_cross((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y) / area; + float w1 = peak__edge_cross((float)x2, (float)y2, (float)x0, (float)y0, (float)x, (float)y) / area; + float w2 = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x, (float)y) / area; + + if (w0 >= 0.0f && w1 >= 0.0f && w2 >= 0.0f) { + uint32_t col_a = peak__lerp_color(c0, c1, w1 / (w0 + w1 + 1e-6f)); + uint32_t final_color = peak__lerp_color(col_a, c2, w2); + peak__put_pixel(x, y, final_color); + } + } + } +} + +void +peak_draw_line(int x0, int y0, int x1, int y1, size_t width, uint32_t color) +{ + int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = dx + dy, e2; + + int half_w = (int)width / 2; + + while (1) { + /* Draw square footprint for line thickness */ + for (int ox = -half_w; ox <= half_w; ++ox) { + for (int oy = -half_w; oy <= half_w; ++oy) { + peak__put_pixel(x0 + ox, y0 + oy, color); + } + } + if (x0 == x1 && y0 == y1) break; + e2 = 2 * err; + if (e2 >= dy) { err += dy; x0 += sx; } + if (e2 <= dx) { err += dx; y0 += sy; } + } +} + +void +peak_draw_line_gradient(int x0, int y0, int x1, int y1, size_t width, uint32_t c0, uint32_t c1) +{ + float total_dist = sqrtf((float)((x1 - x0)*(x1 - x0) + (y1 - y0)*(y1 - y0))); + int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = dx + dy, e2; + + int orig_x0 = x0, orig_y0 = y0; + int half_w = (int)width / 2; + + while (1) { + float current_dist = sqrtf((float)((x0 - orig_x0)*(x0 - orig_x0) + (y0 - orig_y0)*(y0 - orig_y0))); + float t = (total_dist > 0.0f) ? (current_dist / total_dist) : 0.0f; + uint32_t color = peak__lerp_color(c0, c1, t); + + for (int ox = -half_w; ox <= half_w; ++ox) { + for (int oy = -half_w; oy <= half_w; ++oy) { + peak__put_pixel(x0 + ox, y0 + oy, color); + } + } + + if (x0 == x1 && y0 == y1) break; + e2 = 2 * err; + if (e2 >= dy) { err += dy; x0 += sx; } + if (e2 <= dx) { err += dx; y0 += sy; } + } +} + diff --git a/Peak/src/peak_header.h b/Peak/src/peak_header.h new file mode 100644 index 0000000..9521abb --- /dev/null +++ b/Peak/src/peak_header.h @@ -0,0 +1,283 @@ +/* =========================================================================== + * PEAK - Copyright @ Vasco Alves - See LICENSE at the end of file. + * + * Platform layer. + * It just works, don't think about it too much. + * + * =========================================================================== */ + +#ifndef PEAK_H +#define PEAK_H + +#define PEAK_MAJOR "0" +#define PEAK_MINOR "1" +#define PEAK_PATCH "1" + +/* CHANGE LOG + * 0.0.0 - @vasco - prototyping + * 0.1.0 - @vasco - linux x11 that automagically loads X11 DLL + * 0.1.1 - @vasco - fixed event handling on linux + * + * TODO: demo that stress tests the whole API + */ + +#include <assert.h> +#include <stdarg.h> +#include <stdint.h> +#include <stddef.h> +#include <stdbool.h> + +#if !( \ + (defined(__STDC__) && __STDC__ == 1 && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)\ +) +#error "Peak requires C99." +#endif + +/* + * Detecting a platform does not mean it's supported. + * Feel free to use these macros if you need them. + */ +#if defined(__wasm__) || defined(__wasm32__) || defined(__wasm64__) || defined(__EMSCRIPTEN__) + #define PEAK_WEB +#elif defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__TOS_WIN__) + #define PEAK_WIN32 + #ifndef WIN32_LEAN_AND_MEAN + #define WIN32_LEAN_AND_MEAN + #endif +#elif defined(__APPLE__) || defined(__MACH__) + #include <TargetConditionals.h> + #define PEAK_APPLE + #if TARGET_OS_IPHONE + #define PEAK_IOS + #else + #define PEAK_MACOS + #endif +#elif defined(__linux__) + #define PEAK_LINUX +#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__) + #define PEAK_BSD +#elif defined(__ANDROID__) + #define PEAK_ANDROID + #define PEAK_LINUX +#elif defined(__linux__) + #define PEAK_LINUX +#endif + +#if defined(PEAK_LINUX) || defined(PEAK_BSD) || defined(PEAK_APPLE) + #define PEAK_UNIX + #if !defined(PEAK_APPLE) && !defined(_POSIX_C_SOURCE) + #define _POSIX_C_SOURCE 200112L + #endif +#endif + +#ifdef PEAK_WEB + #define PEAK static inline +#else + #define PEAK extern +#endif + +typedef enum { + PEAK_KEYMOD_ALT = 0, + PEAK_KEYMOD_SHIFT, + PEAK_KEYMOD_CTRL, + PEAK_KEYMOD_CAPS, +} PeakKeyMod; + +typedef enum { + PEAK_KEY_UNKNOWN = 0, + PEAK_KEY_UP, PEAK_KEY_DOWN, PEAK_KEY_LEFT, PEAK_KEY_RIGHT, + PEAK_KEY_SPACE, PEAK_KEY_ESCAPE, PEAK_KEY_ENTER, + PEAK_KEY_A, PEAK_KEY_B, PEAK_KEY_C, PEAK_KEY_D, PEAK_KEY_E, PEAK_KEY_F, PEAK_KEY_G, PEAK_KEY_H, PEAK_KEY_I, + PEAK_KEY_J, PEAK_KEY_K, PEAK_KEY_L, PEAK_KEY_M, PEAK_KEY_N, PEAK_KEY_O, PEAK_KEY_P, PEAK_KEY_Q, PEAK_KEY_R, + PEAK_KEY_S, PEAK_KEY_T, PEAK_KEY_U, PEAK_KEY_V, PEAK_KEY_W, PEAK_KEY_X, PEAK_KEY_Y, PEAK_KEY_Z, +} PeakKeyCode; + +typedef enum { + PEAK_EVENT_NONE = 0, + PEAK_EVENT_KEY_DOWN, + PEAK_EVENT_KEY_UP, + PEAK_EVENT_WINDOW_CLOSE, + PEAK_EVENT_WINDOW_RESIZE, + PEAK_EVENT_POINTER, + PEAK_EVENT_POINTER_CONNECTED, + PEAK_EVENT_POINTER_DISCONNECTED, + PEAK_EVENT_LAST +} PeakEvenType; + +typedef enum { + PEAK_POINTER_MOVED = 0, + PEAK_POINTER_PRESSED, + PEAK_POINTER_RELEASED +} PeakPointerState; + +typedef enum { + PEAK_POINTER_LEFT = 0, + PEAK_POINTER_RIGHT, + PEAK_POINTER_MIDDLE, + PEAK_POINTER_TOUCH, +} PeakPointerType; + +typedef struct { + PeakEvenType type; + union { + struct { PeakKeyCode key; PeakKeyMod mod; } key; + struct { uint32_t width, height; } resize; + struct { PeakPointerState state; PeakPointerType type; float x, y; } pointer; + }; +} PeakEvent; + +/* Public API */ +PEAK void peak_init(void); // open a window and initialize graphics. called automatically if using peak_setup(). +PEAK void peak_quit(void); // close the window and release resources. called automatically if using peak_setup(). +PEAK bool peak_poll_events(PeakEvent *ev); // Poll the next event from the window queue. Returns true if an event was retrieved. +PEAK void peak_extensions(void); // retrieve gpu window surface extensions for native api access (e.g., vulkan/opengl). +PEAK void peak_blit(int offset_x, int offset_y, const uint32_t *rgba, size_t width, size_t height); // blit rgba pixels to the screen. +PEAK void peak_clip(int x, int y, size_t w, size_t h); // restrict all subsequent rendering operations to this bounding rectangle. +PEAK void peak_clip_reset(void); // reset clipping plane to window size. +PEAK void peak_draw_rectangle(int x, int y, size_t w, size_t h, uint32_t color); // draw a solid-color filled rectangle. +PEAK void peak_draw_rectangle_gradient(int x, int y, size_t w, size_t h, uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3); // fill rectangle interpolating four corner colors in clock-wise order. +PEAK void peak_draw_triangle(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t color); // draw a solid-color filled triangle. +PEAK void peak_draw_triangle_gradient(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t c0, uint32_t c1, uint32_t c2); // fill triangle with color interpolation clock-wise across its three vertices. +PEAK void peak_draw_line(int x0, int y0, int x1, int y1, size_t width, uint32_t color); // draw a line between two points. +PEAK void peak_draw_line_gradient(int x0, int y0, int x1, int y1, size_t width, uint32_t c0, uint32_t c1); // draw a line with a color gradient. + +/* Implemented by the platform */ +PEAK void peak_platform_window_open(); +PEAK void peak_platform_window_close(); +PEAK uint32_t *peak_platform_window_buffer(size_t *width, size_t *height); +PEAK bool peak_platform_epoll(PeakEvent *ev); + +/* + * He was wipping up amazing foods, like making happiness. + * Actual happiness? + * Actual happiness and joy. + * Oh the smell, it was so divine. + * He was making happiness!? + * Happiness in the kettle! + */ +#ifdef PEAK_REPLACE_MAIN +enum PeakReturn { PEAK_CONTINUE = 0, PEAK_STOP = 1 }; +extern int peak__main(int argc, char**argv); +extern void peak_events(PeakEvent ev); +extern void peak_tick(); +static bool running = true; +static inline void peak_stop() { running = false; } +#ifndef PEAK_WEB +#define main(...)\ +main(int argc, char **argv) {\ + assert(peak_events != 0 && "Declare peak_events() to handle window events.");\ + assert(peak_tick != 0 && "Declare peak_tick() to handle each frame ticks.");\ + peak_init();\ + int ret = peak__main(argc, argv);\ + if (ret != PEAK_CONTINUE) return ret;\ + PeakEvent ev;\ + while (running) {\ + while (running && peak_poll_events(&ev)) {\ + peak_events(ev);\ + }\ + peak_tick();\ + }\ + peak_quit();\ +}\ +int peak__main(__VA_ARGS__) +#else +#include <emscripten.h> +/* + * He was wipping up agony in the kettle. + * Actual pain? + * Boiling hatred in the kettle. + * The smell, it's pain. + * Boiling anger!? + * Yes, boiling anger. + */ + +static inline void +peak__emscripten_loop_step(void *arg) +{ + (void)arg; + PeakEvent ev; + while (peak_poll_events(&ev)) { + peak_events(ev); + } + + if (running) { + peak_tick(); + } else { + emscripten_cancel_main_loop(); + peak_quit(); + } +} + +#define main(...)\ + main(int argc, char **argv) {\ + _Static_assert(peak_events != 0, "When using peak_setup, declare peak_events() to handle window events.");\ + _Static_assert(peak_tick != 0, "When using peak_setup, declare peak_tick() to handle frame ticks.");\ + peak_init();\ + int ret = peak__main(argc, argv);\ + if (ret != PEAK_CONTINUE) return ret;\ + emscripten_set_main_loop_arg(peak__emscripten_loop_step, NULL, 0, 1);\ + return 0;\ + }\ + int peak__main(__VA_ARGS__) +#endif +#endif // PEAK_DONT_REPLACE_MAIN + +#endif // PEAK_H + +#ifdef PEAK_IMPLEMENTATION +#undef PEAK_IMPLEMENTATION + +#if defined(PEAK_WIN32) +#include "p_win32.c" // <REPLACE> +#elif defined(PEAK_LINUX) +#include "p_linux.c" // <REPLACE> +#elif defined(PEAK_WEB) +#include "p_emscripten.c" // <REPLACE> +#endif + +#include "peak.c" // <REPLACE> + +#endif // PEAK_IMPLEMENTATION + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/Peak/src/peak_header.h.out b/Peak/src/peak_header.h.out new file mode 100644 index 0000000..581aa74 --- /dev/null +++ b/Peak/src/peak_header.h.out @@ -0,0 +1,895 @@ +/* =========================================================================== + * PEAK - Copyright @ Vasco Alves - See LICENSE at the end of file. + * + * Platform layer. + * It just works, don't think about it too much. + * + * =========================================================================== */ + +#ifndef PEAK_H +#define PEAK_H + +#define PEAK_MAJOR "0" +#define PEAK_MINOR "1" +#define PEAK_PATCH "1" + +/* CHANGE LOG + * 0.0.0 - @vasco - prototyping + * 0.1.0 - @vasco - linux x11 that automagically loads X11 DLL + * 0.1.1 - @vasco - fixed event handling on linux + * + * TODO: demo that stress tests the whole API + */ + +#include <assert.h> +#include <stdarg.h> +#include <stdint.h> +#include <stddef.h> +#include <stdbool.h> + +#if !( \ + (defined(__STDC__) && __STDC__ == 1 && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)\ +) +#error "Peak requires C99." +#endif + +/* + * Detecting a platform does not mean it's supported. + * Feel free to use these macros if you need them. + */ +#if defined(__wasm__) || defined(__wasm32__) || defined(__wasm64__) || defined(__EMSCRIPTEN__) + #define PEAK_WEB +#elif defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__TOS_WIN__) + #define PEAK_WIN32 + #ifndef WIN32_LEAN_AND_MEAN + #define WIN32_LEAN_AND_MEAN + #endif +#elif defined(__APPLE__) || defined(__MACH__) + #include <TargetConditionals.h> + #define PEAK_APPLE + #if TARGET_OS_IPHONE + #define PEAK_IOS + #else + #define PEAK_MACOS + #endif +#elif defined(__linux__) + #define PEAK_LINUX +#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__) + #define PEAK_BSD +#elif defined(__ANDROID__) + #define PEAK_ANDROID + #define PEAK_LINUX +#elif defined(__linux__) + #define PEAK_LINUX +#endif + +#if defined(PEAK_LINUX) || defined(PEAK_BSD) || defined(PEAK_APPLE) + #define PEAK_UNIX + #if !defined(PEAK_APPLE) && !defined(_POSIX_C_SOURCE) + #define _POSIX_C_SOURCE 200112L + #endif +#endif + +#ifdef PEAK_WEB + #define PEAK static inline +#else + #define PEAK extern +#endif + +typedef enum { + PEAK_KEYMOD_ALT = 0, + PEAK_KEYMOD_SHIFT, + PEAK_KEYMOD_CTRL, + PEAK_KEYMOD_CAPS, +} PeakKeyMod; + +typedef enum { + PEAK_KEY_UNKNOWN = 0, + PEAK_KEY_UP, PEAK_KEY_DOWN, PEAK_KEY_LEFT, PEAK_KEY_RIGHT, + PEAK_KEY_SPACE, PEAK_KEY_ESCAPE, PEAK_KEY_ENTER, + PEAK_KEY_A, PEAK_KEY_B, PEAK_KEY_C, PEAK_KEY_D, PEAK_KEY_E, PEAK_KEY_F, PEAK_KEY_G, PEAK_KEY_H, PEAK_KEY_I, + PEAK_KEY_J, PEAK_KEY_K, PEAK_KEY_L, PEAK_KEY_M, PEAK_KEY_N, PEAK_KEY_O, PEAK_KEY_P, PEAK_KEY_Q, PEAK_KEY_R, + PEAK_KEY_S, PEAK_KEY_T, PEAK_KEY_U, PEAK_KEY_V, PEAK_KEY_W, PEAK_KEY_X, PEAK_KEY_Y, PEAK_KEY_Z, +} PeakKeyCode; + +typedef enum { + PEAK_EVENT_NONE = 0, + PEAK_EVENT_KEY_DOWN, + PEAK_EVENT_KEY_UP, + PEAK_EVENT_WINDOW_CLOSE, + PEAK_EVENT_WINDOW_RESIZE, + PEAK_EVENT_POINTER, + PEAK_EVENT_POINTER_CONNECTED, + PEAK_EVENT_POINTER_DISCONNECTED, + PEAK_EVENT_LAST +} PeakEvenType; + +typedef enum { + PEAK_POINTER_MOVED = 0, + PEAK_POINTER_PRESSED, + PEAK_POINTER_RELEASED +} PeakPointerState; + +typedef enum { + PEAK_POINTER_LEFT = 0, + PEAK_POINTER_RIGHT, + PEAK_POINTER_MIDDLE, + PEAK_POINTER_TOUCH, +} PeakPointerType; + +typedef struct { + PeakEvenType type; + union { + struct { PeakKeyCode key; PeakKeyMod mod; } key; + struct { uint32_t width, height; } resize; + struct { PeakPointerState state; PeakPointerType type; float x, y; } pointer; + }; +} PeakEvent; + +/* Public API */ +PEAK void peak_init(void); // open a window and initialize graphics. called automatically if using peak_setup(). +PEAK void peak_quit(void); // close the window and release resources. called automatically if using peak_setup(). +PEAK bool peak_poll_events(PeakEvent *ev); // Poll the next event from the window queue. Returns true if an event was retrieved. +PEAK void peak_extensions(void); // retrieve gpu window surface extensions for native api access (e.g., vulkan/opengl). +PEAK void peak_blit(int offset_x, int offset_y, const uint32_t *rgba, size_t width, size_t height); // blit rgba pixels to the screen. +PEAK void peak_clip(int x, int y, size_t w, size_t h); // restrict all subsequent rendering operations to this bounding rectangle. +PEAK void peak_clip_reset(void); // reset clipping plane to window size. +PEAK void peak_draw_rectangle(int x, int y, size_t w, size_t h, uint32_t color); // draw a solid-color filled rectangle. +PEAK void peak_draw_rectangle_gradient(int x, int y, size_t w, size_t h, uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3); // fill rectangle interpolating four corner colors in clock-wise order. +PEAK void peak_draw_triangle(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t color); // draw a solid-color filled triangle. +PEAK void peak_draw_triangle_gradient(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t c0, uint32_t c1, uint32_t c2); // fill triangle with color interpolation clock-wise across its three vertices. +PEAK void peak_draw_line(int x0, int y0, int x1, int y1, size_t width, uint32_t color); // draw a line between two points. +PEAK void peak_draw_line_gradient(int x0, int y0, int x1, int y1, size_t width, uint32_t c0, uint32_t c1); // draw a line with a color gradient. + +/* Implemented by the platform */ +PEAK void peak_platform_window_open(); +PEAK void peak_platform_window_close(); +PEAK uint32_t *peak_platform_window_buffer(size_t *width, size_t *height); +PEAK bool peak_platform_epoll(PeakEvent *ev); + +/* + * He was wipping up amazing foods, like making happiness. + * Actual happiness? + * Actual happiness and joy. + * Oh the smell, it was so divine. + * He was making happiness!? + * Happiness in the kettle! + */ +#ifdef PEAK_REPLACE_MAIN +enum PeakReturn { PEAK_CONTINUE = 0, PEAK_STOP = 1 }; +extern int peak__main(int argc, char**argv); +extern void peak_events(PeakEvent ev); +extern void peak_tick(); +static bool running = true; +static inline void peak_stop() { running = false; } +#ifndef PEAK_WEB +#define main(...)\ +main(int argc, char **argv) {\ + assert(peak_events != 0 && "Declare peak_events() to handle window events.");\ + assert(peak_tick != 0 && "Declare peak_tick() to handle each frame ticks.");\ + peak_init();\ + int ret = peak__main(argc, argv);\ + if (ret != PEAK_CONTINUE) return ret;\ + PeakEvent ev;\ + while (running) {\ + while (running && peak_poll_events(&ev)) {\ + peak_events(ev);\ + }\ + peak_tick();\ + }\ + peak_quit();\ +}\ +int peak__main(__VA_ARGS__) +#else +#include <emscripten.h> +/* + * He was wipping up agony in the kettle. + * Actual pain? + * Boiling hatred in the kettle. + * The smell, it's pain. + * Boiling anger!? + * Yes, boiling anger. + */ + +static inline void +peak__emscripten_loop_step(void *arg) +{ + (void)arg; + PeakEvent ev; + while (peak_poll_events(&ev)) { + peak_events(ev); + } + + if (running) { + peak_tick(); + } else { + emscripten_cancel_main_loop(); + peak_quit(); + } +} + +#define main(...)\ + main(int argc, char **argv) {\ + _Static_assert(peak_events != 0, "When using peak_setup, declare peak_events() to handle window events.");\ + _Static_assert(peak_tick != 0, "When using peak_setup, declare peak_tick() to handle frame ticks.");\ + peak_init();\ + int ret = peak__main(argc, argv);\ + if (ret != PEAK_CONTINUE) return ret;\ + emscripten_set_main_loop_arg(peak__emscripten_loop_step, NULL, 0, 1);\ + return 0;\ + }\ + int peak__main(__VA_ARGS__) +#endif +#endif // PEAK_DONT_REPLACE_MAIN + +#endif // PEAK_H + +#ifdef PEAK_IMPLEMENTATION +#undef PEAK_IMPLEMENTATION + +#if defined(PEAK_WIN32) +/* --- Start of p_win32.c --- */ +#include <windows.h> + +void +peak_platform_window_open() +{ +} + +void +peak_platform_window_close() +{ +} + +uint32_t* +peak_platform_window_buffer(size_t *width, size_t *height) +{ +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ +} +/* --- End of p_win32.c --- */ +#elif defined(PEAK_LINUX) +/* --- Start of p_linux.c --- */ +#include <dlfcn.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xatom.h> +#include <X11/keysym.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> + +#define PEAK_X11_LINUX "/usr/lib/libX11.so.6" + +#define PEAK_LINUX_DEFAULT_WIDTH 800 +#define PEAK_LINUX_DEFAULT_HEIGHT 600 + +typedef Display* (*XOpenDisplay_t)(const char*); +typedef int (*XCloseDisplay_t)(Display*); +typedef Window (*XCreateSimpleWindow_t)(Display*, Window, int, int, unsigned int, unsigned int, unsigned int, unsigned long, unsigned long); +typedef int (*XStoreName_t)(Display*, Window, const char*); +typedef Atom (*XInternAtom_t)(Display*, const char*, Bool); +typedef Status (*XSetWMProtocols_t)(Display*, Window, Atom*, int); +typedef int (*XSelectInput_t)(Display*, Window, long); +typedef GC (*XCreateGC_t)(Display*, Window, unsigned long, XGCValues*); +typedef XImage* (*XCreateImage_t)(Display*, Visual*, unsigned int, int, int, char*, unsigned int, unsigned int, int, int); +typedef int (*XMapRaised_t)(Display*, Window); +typedef int (*XFlush_t)(Display*); +typedef int (*XFreeGC_t)(Display*, GC); +typedef int (*XDestroyWindow_t)(Display*, Window); +typedef int (*XPending_t)(Display*); +typedef int (*XNextEvent_t)(Display*, XEvent*); +typedef KeySym (*XLookupKeysym_t)(XKeyEvent*, int); +typedef int (*XPutImage_t)(Display*, Drawable, GC, XImage*, int, int, int, int, unsigned int, unsigned int); +typedef int (*XDefaultScreen_t)(Display*); +typedef Window (*XRootWindow_t)(Display*, int); +typedef unsigned long (*XBlackPixel_t)(Display*, int); +typedef Visual* (*XDefaultVisual_t)(Display*, int); +typedef int (*XDefaultDepth_t)(Display*, int); + +typedef struct { + XOpenDisplay_t XOpenDisplay; + XCloseDisplay_t XCloseDisplay; + XCreateSimpleWindow_t XCreateSimpleWindow; + XStoreName_t XStoreName; + XInternAtom_t XInternAtom; + XSetWMProtocols_t XSetWMProtocols; + XSelectInput_t XSelectInput; + XCreateGC_t XCreateGC; + XCreateImage_t XCreateImage; + XMapRaised_t XMapRaised; + XFlush_t XFlush; + XFreeGC_t XFreeGC; + XDestroyWindow_t XDestroyWindow; + XPending_t XPending; + XNextEvent_t XNextEvent; + XLookupKeysym_t XLookupKeysym; + XPutImage_t XPutImage; + XDefaultScreen_t XDefaultScreen; + XRootWindow_t XRootWindow; + XBlackPixel_t XBlackPixel; + XDefaultVisual_t XDefaultVisual; + XDefaultDepth_t XDefaultDepth; +} PeakX11Api; + +static PeakX11Api peak_x11; + +static int peak_load_x11(void *handle) { + peak_x11.XOpenDisplay = (XOpenDisplay_t)dlsym(handle, "XOpenDisplay"); + peak_x11.XCloseDisplay = (XCloseDisplay_t)dlsym(handle, "XCloseDisplay"); + peak_x11.XCreateSimpleWindow = (XCreateSimpleWindow_t)dlsym(handle, "XCreateSimpleWindow"); + peak_x11.XStoreName = (XStoreName_t)dlsym(handle, "XStoreName"); + peak_x11.XInternAtom = (XInternAtom_t)dlsym(handle, "XInternAtom"); + peak_x11.XSetWMProtocols = (XSetWMProtocols_t)dlsym(handle, "XSetWMProtocols"); + peak_x11.XSelectInput = (XSelectInput_t)dlsym(handle, "XSelectInput"); + peak_x11.XCreateGC = (XCreateGC_t)dlsym(handle, "XCreateGC"); + peak_x11.XCreateImage = (XCreateImage_t)dlsym(handle, "XCreateImage"); + peak_x11.XMapRaised = (XMapRaised_t)dlsym(handle, "XMapRaised"); + peak_x11.XFlush = (XFlush_t)dlsym(handle, "XFlush"); + peak_x11.XFreeGC = (XFreeGC_t)dlsym(handle, "XFreeGC"); + peak_x11.XDestroyWindow = (XDestroyWindow_t)dlsym(handle, "XDestroyWindow"); + peak_x11.XPending = (XPending_t)dlsym(handle, "XPending"); + peak_x11.XNextEvent = (XNextEvent_t)dlsym(handle, "XNextEvent"); + peak_x11.XLookupKeysym = (XLookupKeysym_t)dlsym(handle, "XLookupKeysym"); + peak_x11.XPutImage = (XPutImage_t)dlsym(handle, "XPutImage"); + peak_x11.XDefaultScreen = (XDefaultScreen_t)dlsym(handle, "XDefaultScreen"); + peak_x11.XRootWindow = (XRootWindow_t)dlsym(handle, "XRootWindow"); + peak_x11.XBlackPixel = (XBlackPixel_t)dlsym(handle, "XBlackPixel"); + peak_x11.XDefaultVisual = (XDefaultVisual_t)dlsym(handle, "XDefaultVisual"); + peak_x11.XDefaultDepth = (XDefaultDepth_t)dlsym(handle, "XDefaultDepth"); + + if (!peak_x11.XOpenDisplay || !peak_x11.XCloseDisplay || !peak_x11.XCreateSimpleWindow || + !peak_x11.XStoreName || !peak_x11.XInternAtom || !peak_x11.XSetWMProtocols || + !peak_x11.XSelectInput || !peak_x11.XCreateGC || !peak_x11.XCreateImage || + !peak_x11.XMapRaised || !peak_x11.XFlush || + !peak_x11.XFreeGC || !peak_x11.XDestroyWindow || !peak_x11.XPending || + !peak_x11.XNextEvent || !peak_x11.XLookupKeysym || !peak_x11.XPutImage || + !peak_x11.XDefaultScreen || !peak_x11.XRootWindow || !peak_x11.XBlackPixel || + !peak_x11.XDefaultVisual || !peak_x11.XDefaultDepth) { + return 0; + } + return 1; +} + + +typedef struct { + Display *display; + Atom wm_delete_window; + bool initialized; +} PeakLinux; + +typedef struct { + Window window; + GC gfx_ctx; /* GRAPHICS CONTEXT, not garbage collector lol */ +} PeakLinuxWindow; + +static PeakLinux peak_linux = {0}; +static PeakLinuxWindow peak_linux_window = {0}; +static XImage *peak_linux_ximage = NULL; +static uint32_t *peak_linux_buffer = NULL; +static size_t peak_linux_width = PEAK_LINUX_DEFAULT_WIDTH; +static size_t peak_linux_height = PEAK_LINUX_DEFAULT_HEIGHT; + +static PeakKeyCode +peak__x11_map_key(KeySym sym) +{ + if (sym >= XK_a && sym <= XK_z) return (PeakKeyCode)(PEAK_KEY_A + (int)(sym - XK_a)); + if (sym >= XK_A && sym <= XK_Z) return (PeakKeyCode)(PEAK_KEY_A + (int)(sym - XK_A)); + switch (sym) { + case XK_Up: return PEAK_KEY_UP; + case XK_Down: return PEAK_KEY_DOWN; + case XK_Left: return PEAK_KEY_LEFT; + case XK_Right: return PEAK_KEY_RIGHT; + case XK_space: return PEAK_KEY_SPACE; + case XK_Escape: return PEAK_KEY_ESCAPE; + case XK_Return: return PEAK_KEY_ENTER; + default: return PEAK_KEY_UNKNOWN; + } +} + +static PeakKeyMod +peak__x11_map_mod(unsigned int state) +{ + if (state & ControlMask) return PEAK_KEYMOD_CTRL; + if (state & Mod1Mask) return PEAK_KEYMOD_ALT; + if (state & ShiftMask) return PEAK_KEYMOD_SHIFT; + if (state & LockMask) return PEAK_KEYMOD_CAPS; + return (PeakKeyMod)0; +} + +void +peak_platform_window_open() +{ + void *x11_handle = dlopen(PEAK_X11_LINUX, RTLD_LOCAL | RTLD_NOW); + assert(x11_handle && "Failed to load X11 library. What system are you fucking using and abusing?"); + + int success = peak_load_x11(x11_handle); + assert(success && "Failed to open X11 display"); + + peak_linux.display = peak_x11.XOpenDisplay(NULL); + assert(peak_linux.display && "Failed to open X11 display"); + + /* Who design this API??? */ + int screen = DefaultScreen(peak_linux.display); + peak_linux_window.window = peak_x11.XCreateSimpleWindow(peak_linux.display, RootWindow(peak_linux.display, screen), 0, 0, peak_linux_width, peak_linux_height, 0, BlackPixel(peak_linux.display, screen), BlackPixel(peak_linux.display, screen)); + peak_x11.XStoreName(peak_linux.display, peak_linux_window.window, "Peak"); + peak_linux.wm_delete_window = peak_x11.XInternAtom(peak_linux.display, "WM_DELETE_WINDOW", False); + peak_x11.XSetWMProtocols(peak_linux.display, peak_linux_window.window, &peak_linux.wm_delete_window, 1); + peak_x11.XSelectInput(peak_linux.display, peak_linux_window.window, ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask); + peak_linux_window.gfx_ctx = peak_x11.XCreateGC(peak_linux.display, peak_linux_window.window, 0, NULL); + peak_linux_buffer = (uint32_t *)calloc(peak_linux_width * peak_linux_height, sizeof(uint32_t)); + assert(peak_linux_buffer && "Failed to allocate framebuffer"); + + /* Wrap the buffer in an XImage for XPutImage blitting */ + Visual *visual = DefaultVisual(peak_linux.display, screen); + int depth = DefaultDepth(peak_linux.display, screen); + + peak_linux_ximage = peak_x11.XCreateImage(peak_linux.display, visual, depth, ZPixmap, 0, (char *)peak_linux_buffer, peak_linux_width, peak_linux_height, 32, 0); + assert(peak_linux_ximage && "Failed to create XImage"); + + peak_x11.XMapRaised(peak_linux.display, peak_linux_window.window); + peak_x11.XFlush(peak_linux.display); + + peak_linux.initialized = true; +} + +void +peak_platform_window_close() +{ + if (!peak_linux.initialized) return; + + if (peak_linux_ximage) { + peak_linux_ximage->data = NULL; + XDestroyImage(peak_linux_ximage); + peak_linux_ximage = NULL; + } + + free(peak_linux_buffer); + peak_linux_buffer = NULL; + + peak_x11.XFreeGC(peak_linux.display, peak_linux_window.gfx_ctx); + peak_x11.XDestroyWindow(peak_linux.display, peak_linux_window.window); + peak_x11.XCloseDisplay(peak_linux.display); + + peak_linux.initialized = false; +} + +uint32_t * +peak_platform_window_buffer(size_t *width, size_t *height) +{ + *width = peak_linux_width; + *height = peak_linux_height; + return peak_linux_buffer; +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ + if (!peak_linux.initialized) return false; + + Display *dpy = peak_linux.display; + + while (peak_x11.XPending(dpy) > 0) { + XEvent xev; + peak_x11.XNextEvent(dpy, &xev); + + switch (xev.type) { + + case ClientMessage: + if ((Atom)xev.xclient.data.l[0] == peak_linux.wm_delete_window) { + ev->type = PEAK_EVENT_WINDOW_CLOSE; + printf("CLLOOOOOOOSEEEE"); + return true; + } + continue; + + case KeyPress: + case KeyRelease: { + KeySym sym = peak_x11.XLookupKeysym(&xev.xkey, 0); + ev->type = (xev.type == KeyPress) ? PEAK_EVENT_KEY_DOWN : PEAK_EVENT_KEY_UP; + ev->key.key = peak__x11_map_key(sym); + ev->key.mod = peak__x11_map_mod(xev.xkey.state); + return true; + } + + case ButtonPress: + case ButtonRelease: { + ev->type = PEAK_EVENT_POINTER; + ev->pointer.state = (xev.type == ButtonPress) ? PEAK_POINTER_PRESSED : PEAK_POINTER_RELEASED; + ev->pointer.x = (float)xev.xbutton.x; + ev->pointer.y = (float)xev.xbutton.y; + switch (xev.xbutton.button) { + case Button1: ev->pointer.type = PEAK_POINTER_LEFT; break; + case Button2: ev->pointer.type = PEAK_POINTER_MIDDLE; break; + case Button3: ev->pointer.type = PEAK_POINTER_RIGHT; break; + default: ev->pointer.type = PEAK_POINTER_LEFT; break; + } + return true; + } + + case MotionNotify: + ev->type = PEAK_EVENT_POINTER; + ev->pointer.state = PEAK_POINTER_MOVED; + ev->pointer.x = (float)xev.xmotion.x; + ev->pointer.y = (float)xev.xmotion.y; + if (xev.xmotion.state & Button3Mask) + ev->pointer.type = PEAK_POINTER_RIGHT; + else if (xev.xmotion.state & Button2Mask) + ev->pointer.type = PEAK_POINTER_MIDDLE; + else + ev->pointer.type = PEAK_POINTER_LEFT; + return true; + + case ConfigureNotify: + if ((size_t)xev.xconfigure.width != peak_linux_width || + (size_t)xev.xconfigure.height != peak_linux_height) { + ev->type = PEAK_EVENT_WINDOW_RESIZE; + ev->resize.width = (uint32_t)xev.xconfigure.width; + ev->resize.height = (uint32_t)xev.xconfigure.height; + return true; + } + continue; + + case Expose: + if (xev.xexpose.count == 0) { + peak_x11.XPutImage(dpy, peak_linux_window.window, peak_linux_window.gfx_ctx, peak_linux_ximage, 0, 0, 0, 0, peak_linux_width, peak_linux_height); + } + continue; + + default: + continue; + } + } + + peak_x11.XPutImage(dpy, peak_linux_window.window, peak_linux_window.gfx_ctx, peak_linux_ximage, 0, 0, 0, 0, peak_linux_width, peak_linux_height); + peak_x11.XFlush(dpy); + return false; +} +/* --- End of p_linux.c --- */ +#elif defined(PEAK_WEB) +/* --- Start of p_emscripten.c --- */ +#include <stdlib.h> +#include <string.h> +#include <stdbool.h> + +#define PEAK_CANVAS "#PeakCanvas" + +static PeakKeyCode map_key(const char *code); +static PeakKeyMod map_mod(const EmscriptenKeyboardEvent *keyEvent); +static EM_BOOL key_callback(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData); +static EM_BOOL mouse_callback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); +static EM_BOOL resize_callback(int eventType, const EmscriptenUiEvent *uiEvent, void *userData); + +void +peak_platform_window_open() +{ + emscripten_set_keydown_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, key_callback); + emscripten_set_keyup_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, key_callback); + emscripten_set_mousedown_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_mouseup_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_mousemove_callback(PEAK_CANVAS, NULL, EM_TRUE, mouse_callback); + emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, EM_TRUE, resize_callback); +} + +void +peak_platform_window_close() +{ +} + +uint32_t* +peak_platform_window_buffer(size_t *width, size_t *height) +{ +} + +bool +peak_platform_epoll(PeakEvent *ev) +{ + return 0; +} +/* --- End of p_emscripten.c --- */ +#endif + +/* --- Start of peak.c --- */ +static inline void peak__put_pixel(int x, int y, uint32_t color); +static inline uint32_t peak__lerp_color(uint32_t c0, uint32_t c1, float t); +static inline float peak__edge_cross(float ax, float ay, float bx, float by, float cx, float cy); + +static uint32_t *peak_window_buffer; +static size_t peak_window_width; +static size_t peak_window_height; +static int peak_clip_x; +static int peak_clip_y; +static size_t peak_clip_width; +static size_t peak_clip_height; + +void +peak__put_pixel(int x, int y, uint32_t color) +{ + if (x < peak_clip_x || x >= (int)(peak_clip_x + peak_clip_width) || + y < peak_clip_y || y >= (int)(peak_clip_y + peak_clip_height)) { + return; + } + if (x < 0 || x >= (int)peak_window_width || y < 0 || y >= (int)peak_window_height) { + return; + } + peak_window_buffer[y * peak_window_width + x] = color; +} + +uint32_t +peak__lerp_color(uint32_t c0, uint32_t c1, float t) +{ + if (t <= 0.0f) return c0; + if (t >= 1.0f) return c1; + + uint32_t a0 = (c0 >> 24) & 0xFF, a1 = (c1 >> 24) & 0xFF; + uint32_t r0 = (c0 >> 16) & 0xFF, r1 = (c1 >> 16) & 0xFF; + uint32_t g0 = (c0 >> 8) & 0xFF, g1 = (c1 >> 8) & 0xFF; + uint32_t b0 = c0 & 0xFF, b1 = c1 & 0xFF; + + uint32_t a = (uint32_t)(a0 + t * ((float)a1 - (float)a0)); + uint32_t r = (uint32_t)(r0 + t * ((float)r1 - (float)r0)); + uint32_t g = (uint32_t)(g0 + t * ((float)g1 - (float)g0)); + uint32_t b = (uint32_t)(b0 + t * ((float)b1 - (float)b0)); + + return (a << 24) | (r << 16) | (g << 8) | b; +} + +float +peak__edge_cross(float ax, float ay, float bx, float by, float cx, float cy) +{ + return (cx - ax) * (by - ay) - (cy - ay) * (bx - ax); +} + +void +peak_init(void) +{ + peak_platform_window_open(); + peak_window_buffer = peak_platform_window_buffer(&peak_window_width, &peak_window_height); + peak_clip_x = 0; + peak_clip_y = 0; + peak_clip_width = peak_window_width; + peak_clip_height = peak_window_height; +} + +void +peak_quit(void) +{ + peak_platform_window_close(); +} + +void +peak_extensions(void) +{ + // TODO +} + +bool +peak_poll_events(PeakEvent *ev) +{ + return peak_platform_epoll(ev); +} + +void +peak_blit(int offset_x, int offset_y, const uint32_t *rgba, size_t width, size_t height) +{ + for (size_t y = 0; y < height; ++y) { + int target_y = offset_y + (int)y; + if (target_y < peak_clip_y || target_y >= (int)(peak_clip_y + peak_clip_height) || + target_y < 0 || target_y >= (int)peak_window_height) continue; + + int start_x = offset_x < peak_clip_x ? peak_clip_x : offset_x; + int end_x = (offset_x + (int)width) > (int)(peak_clip_x + peak_clip_width) + ? (int)(peak_clip_x + peak_clip_width) + : (offset_x + (int)width); + + if (start_x >= end_x) continue; + + size_t src_offset_x = (size_t)(start_x - offset_x); + size_t copy_pixels = (size_t)(end_x - start_x); + + memcpy(&peak_window_buffer[target_y * peak_window_width + start_x], &rgba[y * width + src_offset_x], copy_pixels * sizeof(uint32_t)); + } +} + +void +peak_clip(int x, int y, size_t w, size_t h) +{ + peak_clip_x = x; + peak_clip_y = y; + peak_clip_width = w; + peak_clip_height = h; +} + +void +peak_clip_reset(void) +{ + peak_clip_x = 0; + peak_clip_y = 0; + peak_clip_width = peak_window_width; + peak_clip_height = peak_window_height; +} + +void +peak_draw_rectangle(int x, int y, size_t w, size_t h, uint32_t color) +{ + int start_x = (x < peak_clip_x) ? peak_clip_x : x; + int start_y = (y < peak_clip_y) ? peak_clip_y : y; + int end_x = (x + (int)w > (int)(peak_clip_x + peak_clip_width)) ? (int)(peak_clip_x + peak_clip_width) : x + (int)w; + int end_y = (y + (int)h > (int)(peak_clip_y + peak_clip_height)) ? (int)(peak_clip_y + peak_clip_height) : y + (int)h; + + for (int py = start_y; py < end_y; ++py) { + if (py < 0 || py >= (int)peak_window_height) continue; + for (int px = start_x; px < end_x; ++px) { + if (px < 0 || px >= (int)peak_window_width) continue; + peak_window_buffer[py * peak_window_width + px] = color; + } + } +} + +void +peak_draw_rectangle_gradient(int x, int y, size_t w, size_t h, uint32_t c0, uint32_t c1, uint32_t c2, uint32_t c3) +{ + for (size_t ry = 0; ry < h; ++ry) { + float ty = (h > 1) ? (float)ry / (float)(h - 1) : 0.0f; + uint32_t left_color = peak__lerp_color(c0, c3, ty); + uint32_t right_color = peak__lerp_color(c1, c2, ty); + + for (size_t rx = 0; rx < w; ++rx) { + float tx = (w > 1) ? (float)rx / (float)(w - 1) : 0.0f; + uint32_t final_color = peak__lerp_color(left_color, right_color, tx); + peak__put_pixel(x + (int)rx, y + (int)ry, final_color); + } + } +} + +void +peak_draw_triangle(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t color) +{ + int min_x = (x0 < x1) ? ((x0 < x2) ? x0 : x2) : ((x1 < x2) ? x1 : x2); + int max_x = (x0 > x1) ? ((x0 > x2) ? x0 : x2) : ((x1 > x2) ? x1 : x2); + int min_y = (y0 < y1) ? ((y0 < y2) ? y0 : y2) : ((y1 < y2) ? y1 : y2); + int max_y = (y0 > y1) ? ((y0 > y2) ? y0 : y2) : ((y1 > y2) ? y1 : y2); + + float area = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x2, (float)y2); + if (area == 0.0f) return; + + for (int y = min_y; y <= max_y; ++y) { + for (int x = min_x; x <= max_x; ++x) { + float w0 = peak__edge_cross((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y); + float w1 = peak__edge_cross((float)x2, (float)y2, (float)x0, (float)y0, (float)x, (float)y); + float w2 = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x, (float)y); + + if ((w0 >= 0 && w1 >= 0 && w2 >= 0) || (w0 <= 0 && w1 <= 0 && w2 <= 0)) { + peak__put_pixel(x, y, color); + } + } + } +} + +void +peak_draw_triangle_gradient(int x0, int y0, int x1, int y1, int x2, int y2, uint32_t c0, uint32_t c1, uint32_t c2) +{ + int min_x = (x0 < x1) ? ((x0 < x2) ? x0 : x2) : ((x1 < x2) ? x1 : x2); + int max_x = (x0 > x1) ? ((x0 > x2) ? x0 : x2) : ((x1 > x2) ? x1 : x2); + int min_y = (y0 < y1) ? ((y0 < y2) ? y0 : y2) : ((y1 < y2) ? y1 : y2); + int max_y = (y0 > y1) ? ((y0 > y2) ? y0 : y2) : ((y1 > y2) ? y1 : y2); + + float area = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x2, (float)y2); + if (area == 0.0f) return; + + for (int y = min_y; y <= max_y; ++y) { + for (int x = min_x; x <= max_x; ++x) { + float w0 = peak__edge_cross((float)x1, (float)y1, (float)x2, (float)y2, (float)x, (float)y) / area; + float w1 = peak__edge_cross((float)x2, (float)y2, (float)x0, (float)y0, (float)x, (float)y) / area; + float w2 = peak__edge_cross((float)x0, (float)y0, (float)x1, (float)y1, (float)x, (float)y) / area; + + if (w0 >= 0.0f && w1 >= 0.0f && w2 >= 0.0f) { + uint32_t col_a = peak__lerp_color(c0, c1, w1 / (w0 + w1 + 1e-6f)); + uint32_t final_color = peak__lerp_color(col_a, c2, w2); + peak__put_pixel(x, y, final_color); + } + } + } +} + +void +peak_draw_line(int x0, int y0, int x1, int y1, size_t width, uint32_t color) +{ + int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = dx + dy, e2; + + int half_w = (int)width / 2; + + while (1) { + /* Draw square footprint for line thickness */ + for (int ox = -half_w; ox <= half_w; ++ox) { + for (int oy = -half_w; oy <= half_w; ++oy) { + peak__put_pixel(x0 + ox, y0 + oy, color); + } + } + if (x0 == x1 && y0 == y1) break; + e2 = 2 * err; + if (e2 >= dy) { err += dy; x0 += sx; } + if (e2 <= dx) { err += dx; y0 += sy; } + } +} + +void +peak_draw_line_gradient(int x0, int y0, int x1, int y1, size_t width, uint32_t c0, uint32_t c1) +{ + float total_dist = sqrtf((float)((x1 - x0)*(x1 - x0) + (y1 - y0)*(y1 - y0))); + int dx = abs(x1 - x0), sx = x0 < x1 ? 1 : -1; + int dy = -abs(y1 - y0), sy = y0 < y1 ? 1 : -1; + int err = dx + dy, e2; + + int orig_x0 = x0, orig_y0 = y0; + int half_w = (int)width / 2; + + while (1) { + float current_dist = sqrtf((float)((x0 - orig_x0)*(x0 - orig_x0) + (y0 - orig_y0)*(y0 - orig_y0))); + float t = (total_dist > 0.0f) ? (current_dist / total_dist) : 0.0f; + uint32_t color = peak__lerp_color(c0, c1, t); + + for (int ox = -half_w; ox <= half_w; ++ox) { + for (int oy = -half_w; oy <= half_w; ++oy) { + peak__put_pixel(x0 + ox, y0 + oy, color); + } + } + + if (x0 == x1 && y0 == y1) break; + e2 = 2 * err; + if (e2 >= dy) { err += dy; x0 += sx; } + if (e2 <= dx) { err += dx; y0 += sy; } + } +} + +/* --- End of peak.c --- */ + +#endif // PEAK_IMPLEMENTATION + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/Podium/README.md b/Podium/README.md new file mode 100644 index 0000000..fccb70d --- /dev/null +++ b/Podium/README.md @@ -0,0 +1,9 @@ +# Podium + +Single header platform library with batteries included. + +NOTE TO SELF: Stop trying to redesign your own library! +This shit works! Podium stands on business!!! + +The library does it's best to auto-detect your operating system +and the include the correct OS code for that platform. diff --git a/Podium/p_allocators.c b/Podium/p_allocators.c new file mode 100644 index 0000000..7e59807 --- /dev/null +++ b/Podium/p_allocators.c @@ -0,0 +1,301 @@ +PODEF bool +is_power_of_two(uintptr x) { + return (x & (x-1)) == 0; +} + +PODEF uintptr +align_forward(uintptr ptr, usize align) +{ + uintptr p, a, remainder; + assert(is_power_of_two(align)); + + p = ptr; + a = (uintptr)align; + remainder = p & (a-1); + + return (remainder != 0) ? p + a - remainder : p; +} + +PODEF void +p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length) +{ + a->buf = (unsigned char *)backing_buffer; + a->buf_len = backing_buffer_length; + a->curr_offset = 0; + a->prev_offset = 0; +} + +PODEF void* +p_arena_alloc_align(Arena *a, usize s, usize align) +{ + + // Align 'curr_offset' forward to the specified alignment + uintptr curr_ptr = (uintptr)a->buf + (uintptr)a->curr_offset; + uintptr offset = align_forward(curr_ptr, align); + offset -= (uintptr)a->buf; // Change to relative offset + + // Check to see if the backing memory has space left + if (offset+s <= a->buf_len) { + void *ptr = &a->buf[offset]; + a->prev_offset = offset; + a->curr_offset = offset+s; + + memset(ptr, 0, s); + return ptr; + } + + return NULL; +} + +PODEF void* +p_arena_alloc(Arena *a, usize s) { + return p_arena_alloc_align(a, s, DEFAULT_ALIGNMENT); +} + +PODEF void* +p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align) +{ + assert(is_power_of_two(align)); + unsigned char *old_mem = (unsigned char *)old_memory; + + if (old_mem == NULL || old_size == 0) { + return p_arena_alloc_align(a, new_size, align); + } else if (a->buf <= old_mem && old_mem < a->buf+a->buf_len) { + if (a->buf+a->prev_offset == old_mem) { + a->curr_offset = a->prev_offset + new_size; + if (new_size > old_size) { + // Zero the new memory by default + memset(&a->buf[a->curr_offset], 0, new_size-old_size); + } + return old_memory; + } else { + void *new_memory = p_arena_alloc_align(a, new_size, align); + size_t copy_size = old_size < new_size ? old_size : new_size; + memmove(new_memory, old_memory, copy_size); + return new_memory; + } + + } else { + assert(0 && "Memory is out of bounds of the buffer in this arena"); + return NULL; + } +} + +PODEF void* +p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size) +{ + return p_arena_resize_align(a, old_memory, old_size, new_size, DEFAULT_ALIGNMENT); +} + +PODEF void +p_arena_free_all(Arena *a) +{ + a->curr_offset = 0; + a->prev_offset = 0; +} + +PODEF void +p_arena_destroy(Arena* a) +{ + a->buf_len = 0; + a->curr_offset = 0; + a->prev_offset = 0; +} + +PODEF void +p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length) +{ + s->buf = (unsigned char*) backing_buffer; + s->buf_len = backing_buffer_length; + s->offset = 0; +} + +PODEF usize +calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size) +{ + uintptr p, a, modulo, padding, needed_space; + + assert(is_power_of_two(alignment)); + + p = ptr; + a = alignment; + modulo = p & (a-1); // (p % a) as it assumes alignment is a power of two + + padding = 0; + needed_space = 0; + + if (modulo != 0) { // Same logic as 'align_forward' + padding = a - modulo; + } + + needed_space = (uintptr)header_size; + + if (padding < needed_space) { + needed_space -= padding; + + if ((needed_space & (a-1)) != 0) { + padding += a * (1+(needed_space/a)); + } else { + padding += a * (needed_space/a); + } + } + + return (usize)padding; +} + +PODEF void* +p_stack_alloc(Stack *s, usize len, usize alignment) +{ + uintptr curr_addr, next_addr; + usize padding; + Stack_Allocation_Header *header; + + assert(is_power_of_two(alignment)); + + if (alignment > 128) { + // As the padding is 8 bits (1 byte), the largest alignment that can + // be used is 128 bytes + alignment = 128; + } + + curr_addr = (uintptr)s->buf + (uintptr)s->offset; + padding = calc_padding_with_header(curr_addr, (uintptr)alignment, sizeof(Stack_Allocation_Header)); + if (s->offset + padding + len > s->buf_len) { + // Stack allocator is out of memory + return NULL; + } + s->offset += padding; + + next_addr = curr_addr + (uintptr)padding; + header = (Stack_Allocation_Header *)(next_addr - sizeof(Stack_Allocation_Header)); + header->padding = (u8)padding; + + s->offset += len; + + return memset((void *)next_addr, 0, len); +} + +PODEF void +p_stack_free(Stack *s, void *ptr) +{ + if (ptr != NULL) { + uintptr start, end, curr_addr; + Stack_Allocation_Header *header; + usize prev_offset; + + start = (uintptr)s->buf; + end = start + (uintptr)s->buf_len; + curr_addr = (uintptr)ptr; + + if (!(start <= curr_addr && curr_addr < end)) { + assert(0 && "Out of bounds memory address passed to stack allocator (free)"); + return; + } + + if (curr_addr >= start+(uintptr)s->offset) { + // Allow double frees + return; + } + + header = (Stack_Allocation_Header *)(curr_addr - sizeof(Stack_Allocation_Header)); + prev_offset = (usize)(curr_addr - (uintptr)header->padding - start); + + s->offset = prev_offset; + } +} + +PODEF void +p_stack_free_all(Stack* s) +{ + s->offset = 0; +} + +PODEF void +p_stack_destroy(Stack* s) +{ + s->buf = 0; + s->buf_len = 0; + s->offset = 0; +} + +PODEF void +p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align) +{ + /* align start */ + uintptr start = (uintptr) buf; + uintptr aligned = align_forward(start, chunk_align); + buf_len -= (aligned - start); + + /* align chunk usize */ + chunk_size = (usize) align_forward(chunk_size, chunk_align); + + assert(chunk_size >= sizeof(Pool_Free_Node) && "Chunk usize is too small"); + assert(buf_len >= chunk_size && "Backing buffer length is smaller than the chunk size"); + + p->buf = (unsigned char *) buf; + p->pool_size = buf_len; + p->chunk_size = chunk_size; + p->head = NULL; + + p_pool_free_all(p); +} + +PODEF void* +p_pool_alloc(Pool *p) +{ + Pool_Free_Node *node = p->head; + + assert(node != NULL && "Pool allocator has no free memory"); + + p->head = p->head->next; + + return memset(node, 0 , p->chunk_size); +} + +PODEF void +p_pool_free(Pool *p, void *ptr) +{ + Pool_Free_Node *node; + + void *start = p->buf; + void *end = &p->buf[p->pool_size]; + + if (ptr == NULL) { + return; + } + + if (!(start <= ptr && ptr < end)) { + assert(0 && "Memory is out of bounds of the buffer in this pool"); + return; + } + + node = (Pool_Free_Node *)ptr; + node->next = p->head; + p->head = node; +} + +PODEF void +p_pool_free_all(Pool *p) +{ + usize chunk_count = p->pool_size / p->chunk_size; + usize i; + + for (i = 0; i < chunk_count; i++) { + void *ptr = &p->buf[i * p->chunk_size]; + Pool_Free_Node *node = (Pool_Free_Node *)ptr; + + // Push free node onto thte free list + node->next = p->head; + p->head = node; + } +} + +PODEF void +p_pool_destroy(Pool *p) +{ + p->buf = NULL; + p->pool_size = 0; + p->chunk_size = 0; + p->head = NULL; +} + diff --git a/Podium/p_allocators.h b/Podium/p_allocators.h new file mode 100644 index 0000000..72bae56 --- /dev/null +++ b/Podium/p_allocators.h @@ -0,0 +1,44 @@ +typedef struct Arena { + unsigned char *buf; + usize buf_len; + usize curr_offset; + usize prev_offset; +} Arena; + +PODEF void p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length); +PODEF void* p_arena_alloc_align(Arena *a, usize s, usize align); +PODEF void* p_arena_alloc(Arena *a, usize s); +PODEF void* p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align); +PODEF void* p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size); +PODEF void p_arena_free_all(Arena *a); +PODEF void p_arena_destroy(Arena* a); + +typedef struct { u8 padding; } Stack_Allocation_Header; +typedef struct Stack { + unsigned char *buf; + usize buf_len; + usize offset; +} Stack; + +PODEF void p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length); +PODEF usize calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size); +PODEF void* p_stack_alloc(Stack *s, usize len, usize alignment); +PODEF void p_stack_free(Stack *s, void *ptr); +PODEF void p_stack_free_all(Stack* s); +PODEF void p_stack_destroy(Stack* s); + +typedef struct Pool_Free_Node Pool_Free_Node; + +typedef struct Pool { + unsigned char *buf; + usize chunk_size; + usize pool_size; + Pool_Free_Node *head; +} Pool; + +struct Pool_Free_Node { struct Pool_Free_Node *next; }; +PODEF void p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align); +PODEF void* p_pool_alloc(Pool *p); +PODEF void p_pool_free(Pool *p, void *ptr); +PODEF void p_pool_free_all(Pool *p); +PODEF void p_pool_destroy(Pool *p); diff --git a/Podium/p_ds.h b/Podium/p_ds.h new file mode 100644 index 0000000..8731975 --- /dev/null +++ b/Podium/p_ds.h @@ -0,0 +1,52 @@ +#define DEFAULT_ALIGNMENT (2 * sizeof(void *)) +#define ARRAY_GROW_FACTOR 2 + +typedef struct { + u32 size; + u32 capacity; +} DynamicArrayHeader; + +#define DARRAY_INIT_CAPACITY 64 +#define p_darray_push(array, var) \ + do { \ + if (array == NULL) { \ + DynamicArrayHeader *header = \ + malloc(DARRAY_INIT_CAPACITY * sizeof *array + sizeof *header); \ + header->size = 0; \ + header->capacity = DARRAY_INIT_CAPACITY; \ + array = (void *)(header + 1); \ + } \ + DynamicArrayHeader *header = (DynamicArrayHeader *)(array) - 1; \ + if (header->size >= header->capacity - 1) { \ + unsigned long new_capacity = header->capacity * 2; \ + DynamicArrayHeader *new_header = \ + realloc(header, new_capacity * sizeof *array + sizeof *header); \ + if (!new_header) \ + break; \ + header = new_header; \ + array = (void *)(header + 1); \ + header->capacity = new_capacity; \ + } \ + (array)[header->size++] = var; \ + } while (0) + +#define p_darray_len(array) ((array) ? ((DynamicArrayHeader *)(array) - 1)->size : 0) +#define p_darray_destroy(array) \ +{ \ + free((DynamicArrayHeader *)(array) - 1); \ +} + +#define p_darray_shrink(array) \ + do { \ + DynamicArrayHeader *header = (array) ? ((DynamicArrayHeader *)(array) - 1) : 0;\ + if (header) {\ + if (header->capacity > 4) {\ + unsigned long new_capacity = (header->capacity >> 1) + (header->capacity & 1); \ + void *new_header = realloc(header, new_capacity * sizeof *array + sizeof *header); \ + if (!new_header) break; \ + header = new_header; \ + array = (void *)(header + 1); \ + header->capacity = new_capacity; \ + }\ + }\ + } while (0) diff --git a/Podium/p_log.h b/Podium/p_log.h new file mode 100644 index 0000000..0f6ce6c --- /dev/null +++ b/Podium/p_log.h @@ -0,0 +1,186 @@ +/* + * Logging! + */ + +#include <stdlib.h> + +#ifdef DEBUG +#define LOG_DEBUG(...) PRINTF(__VA_ARGS__) +#else +#define LOG_DEBUG(...) ((void)0) +#endif + +/* fatal and error always enabled */ +#define PFATAL(message, ...) p_log_printf(P_LOG_LEVEL_FATAL, message, ##__VA_ARGS__) +#define PERROR(message, ...) p_log_printf(P_LOG_LEVEL_ERROR, message, ##__VA_ARGS__) + +/* warn and info enabled by default but can be disabled */ +#define P_LOG_WARN_ENABLED 1 +#define P_LOG_INFO_ENABLED 1 + +#if P_LOG_WARN_ENABLED == 1 +#define PWARN(message, ...) p_log_printf(P_LOG_LEVEL_WARN, message, ##__VA_ARGS__) +#else +#define PWARN(message, ...) +#endif + +#if P_LOG_INFO_ENABLED == 1 +#define PINFO(message, ...) p_log_printf(P_LOG_LEVEL_INFO, message, ##__VA_ARGS__) +#else +#define PINFO(message, ...) +#endif + +#if P_LOG_DEBUG_ENABLED == 1 +#define PDEBUG(message, ...) p_log_printf(P_LOG_LEVEL_DEBUG, message, ##__VA_ARGS__) +#else +#define PDEBUG(message, ...) +#endif + +#if P_LOG_TRACE_ENABLED == 1 +#define PTRACE(message, ...) p_log_printf(P_LOG_LEVEL_TRACE, message, ##__VA_ARGS__) +#else +#define PTRACE(message, ...) +#endif + +typedef enum P_Log_Level { + P_LOG_LEVEL_FATAL = 0, + P_LOG_LEVEL_ERROR, + P_LOG_LEVEL_WARN, + P_LOG_LEVEL_INFO, + P_LOG_LEVEL_DEBUG, + P_LOG_LEVEL_TRACE, + P_COUNT_LOG_LEVEL +} P_Log_Level; + +#define P_PREFIX_LEN 7 +static const char *p_prefix[P_COUNT_LOG_LEVEL] = { + [P_LOG_LEVEL_FATAL] = "[FATAL]", + [P_LOG_LEVEL_ERROR] = "[ERROR]", + [P_LOG_LEVEL_WARN] = "[WARNI]", + [P_LOG_LEVEL_INFO] = "[INFOR]", + [P_LOG_LEVEL_DEBUG] = "[DEBUG]", + [P_LOG_LEVEL_TRACE] = "[TRACE]", +}; + +#define P_MAX_ALLOCS 512 + +typedef struct P_DebugMemoryInfo { + void *ptr; + size_t size; + const char *file; + const char *func; + int line; +} P_DebugMemoryInfo; + +static uint64_t p_alloc_count = 0; +static P_DebugMemoryInfo p_ptr_array[P_MAX_ALLOCS]; + +static inline void * +p_debug_malloc_impl(size_t size, const char *file, int line, const char *func) +{ + void *ptr = malloc(size); + printf("[ALLOC] %p (%zu bytes) -> %s:%d %s()\n", ptr, size, file, line, func); + + if (ptr) { + if (p_alloc_count < P_MAX_ALLOCS) { + p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){ + .ptr = ptr, + .size = size, + .file = file, + .func = func, + .line = line + }; + } else { + fprintf(stderr, "[ERROR] Debug allocator tracking capacity (%d) exceeded!\n", P_MAX_ALLOCS); + } + } + return ptr; +} + +static inline void +p_debug_free_impl(void *ptr, const char *file, int line, const char *func) +{ + printf("[FREE] %p -> %s:%d %s()\n", ptr, file, line, func); + + if (!ptr) return; // Standard C allows free(NULL) + + bool found = false; + uint64_t index = 0; + + /* Find allocation metadata */ + for (index = 0; index < p_alloc_count; ++index) { + if (p_ptr_array[index].ptr == ptr) { + found = true; + break; + } + } + + if (found) { + /* Shift array left to remove tracked struct */ + for (uint64_t j = index; j < p_alloc_count - 1; ++j) { + p_ptr_array[j] = p_ptr_array[j + 1]; + } + p_alloc_count--; + } else { + fprintf(stderr, "[WARNING] Attempted to free untracked/double-freed pointer %p at %s:%d %s()\n", + ptr, file, line, func); + } + + free(ptr); +} + +static inline void * +p_debug_realloc_impl(void *ptr, size_t size, const char *file, int line, const char *func) +{ + if (!ptr) { + return p_debug_malloc_impl(size, file, line, func); + } + if (size == 0) { + p_debug_free_impl(ptr, file, line, func); + return NULL; + } + + void *new_ptr = realloc(ptr, size); + printf("[REALLOC] %p -> %p (%zu bytes) -> %s:%d %s()\n", ptr, new_ptr, size, file, line, func); + + if (new_ptr) { + bool found = false; + for (uint64_t i = 0; i < p_alloc_count; ++i) { + if (p_ptr_array[i].ptr == ptr) { + p_ptr_array[i].ptr = new_ptr; + p_ptr_array[i].size = size; + p_ptr_array[i].file = file; + p_ptr_array[i].line = line; + p_ptr_array[i].func = func; + found = true; + break; + } + } + if (!found) { + if (p_alloc_count < P_MAX_ALLOCS) { + p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){ + .ptr = new_ptr, + .size = size, + .file = file, + .func = func, + .line = line + }; + } + } + } + return new_ptr; +} + +static void +p_debug_memory_report(void) +{ + printf("\n==================== MEMORY REPORT ====================\n"); + printf("Remaining unfreed allocations: %lu\n", (unsigned long)p_alloc_count); + + for (uint64_t i = 0; i < p_alloc_count; ++i) { + P_DebugMemoryInfo *info = &p_ptr_array[i]; + printf("[LEAK] %p (%zu bytes) allocated at %s:%d in %s()\n", + info->ptr, info->size, info->file, info->line, info->func); + } + printf("=======================================================\n"); +} diff --git a/Podium/p_math.c b/Podium/p_math.c new file mode 100644 index 0000000..928738b --- /dev/null +++ b/Podium/p_math.c @@ -0,0 +1,255 @@ +PODEF +int p_ceil(float x) +{ + int base = (int) x; + return (x > base) ? base + 1 : base; +} + +PODEF float +p_cosf(float x) +{ + x += 1.57079632679f; + + while (x > P_PI) x -= P_PI2; + while (x < -P_PI) x += P_PI2; + + const float B = 4.0f / P_PI; + const float C = -4.0f / P_PI_POW2; + + float y = B * x + C * x * (x < 0 ? -x : x); + + const float P = 0.225f; + y = P * (y * (y < 0 ? -y : y) - y) + y; + + return y; +} + +PODEF float +p_sinf(float x) +{ + while (x > P_PI) x -= P_PI2; + while (x < -P_PI) x += P_PI2; + + const float B = 4.0f / P_PI; + const float C = -4.0f / (P_PI_POW2); + + float y = B * x + C * x * (x < 0 ? -x : x); + + const float P = 0.225f; + y = P * (y * (y < 0 ? -y : y) - y) + y; + + return y; +} + +PODEF Vec2f +p_vec2f(float x, float y) +{ + return (Vec2f) { .x = x, .y = y }; +} + +PODEF Vec2f +p_vec2f_add(Vec2f a, Vec2f b) +{ + return (Vec2f) { + .x = a.x + b.x, + .y = a.y + b.y, + }; +} + +PODEF float +p_vec2f_cross(Vec2f a, Vec2f b) +{ + // axby − aybx + return a.x * b.y - a.y * b.x; +} + +PODEF float +p_vec2f_dot(Vec2f a, Vec2f b) +{ + // a · b = ax × bx + ay × by + return a.x * b.x + a.y * b.y; +} + +PODEF Vec2f +p_vec2f_mult(Vec2f a, float b) +{ + return (Vec2f) { + .x = a.x * b, + .y = a.y * b, + }; +} + +PODEF Vec2f +p_vec2f_sub(Vec2f a, Vec2f b) +{ + return (Vec2f) { + .x = a.x - b.x, + .y = a.y - b.y, + }; +} + +PODEF Vec2i +p_vec2i(float x, float y) +{ + return (Vec2i) { .x = x, .y = y }; +} + +PODEF Vec2i +p_vec2i_add(Vec2i a, Vec2i b) +{ + return (Vec2i) { + .x = a.x + b.x, + .y = a.y + b.y, + }; +} + +PODEF float +p_vec2i_cross(Vec2i a, Vec2i b) +{ + // axby − aybx + return a.x * b.y - a.y * b.x; +} + +PODEF float +p_vec2i_dot(Vec2i a, Vec2i b) +{ + // a · b = ax × bx + ay × by + return a.x * b.x + a.y * b.y; +} + +PODEF Vec2i +p_vec2i_mult(Vec2i a, float b) +{ + return (Vec2i) { + .x = a.x * b, + .y = a.y * b, + }; +} + +PODEF Vec2i +p_vec2i_sub(Vec2i a, Vec2i b) +{ + return (Vec2i) { + .x = a.x - b.x, + .y = a.y - b.y, + }; +} + +PODEF Vec3f +p_vec3f(float x, float y, float z) +{ + return (Vec3f) { .x = x, .y = y, .z = z }; +} + +PODEF P_Mat4 +p_mat4_identity(void) +{ + P_Mat4 res = {0}; + res.m[0] = 1.0f; + res.m[5] = 1.0f; + res.m[10] = 1.0f; + res.m[15] = 1.0f; + return res; +} + +PODEF P_Mat4 +p_mat4_mul(P_Mat4 a, P_Mat4 b) +{ + P_Mat4 res = {0}; + for (int col = 0; col < 4; ++col) { + for (int row = 0; row < 4; ++row) { + float sum = 0.0f; + for (int k = 0; k < 4; ++k) { + sum += a.m[k * 4 + row] * b.m[col * 4 + k]; + } + res.m[col * 4 + row] = sum; + } + } + return res; +} + +PODEF P_Mat4 +p_mat4_translate(Vec3f v) +{ + P_Mat4 res = p_mat4_identity(); + res.m[12] = v.x; + res.m[13] = v.y; + res.m[14] = v.z; + return res; +} + +PODEF P_Mat4 +p_mat4_translate_by(P_Mat4 m, Vec3f v) +{ + P_Mat4 res = m; + res.m[12] = m.m[0] * v.x + m.m[4] * v.y + m.m[8] * v.z + m.m[12]; + res.m[13] = m.m[1] * v.x + m.m[5] * v.y + m.m[9] * v.z + m.m[13]; + res.m[14] = m.m[2] * v.x + m.m[6] * v.y + m.m[10] * v.z + m.m[14]; + res.m[15] = m.m[3] * v.x + m.m[7] * v.y + m.m[11] * v.z + m.m[15]; + return res; +} + +PODEF P_Mat4 +p_mat4_rotate_x(float rad) +{ + P_Mat4 res = p_mat4_identity(); + float c = p_cosf(rad); + float s = p_sinf(rad); + res.m[5] = c; + res.m[6] = s; + res.m[9] = -s; + res.m[10] = c; + return res; +} + +PODEF P_Mat4 +p_mat4_rotate_x_by(P_Mat4 m, float rad) +{ + return p_mat4_mul(m, p_mat4_rotate_x(rad)); +} + +PODEF P_Mat4 +p_mat4_rotate_y(float rad) +{ + P_Mat4 res = p_mat4_identity(); + float c = p_cosf(rad); + float s = p_sinf(rad); + res.m[0] = c; + res.m[2] = -s; + res.m[8] = s; + res.m[10] = c; + return res; +} + +PODEF P_Mat4 +p_mat4_rotate_y_by(P_Mat4 m, float rad) +{ + return p_mat4_mul(m, p_mat4_rotate_y(rad)); +} + +PODEF P_Mat4 +p_mat4_rotate_z(float rad) +{ + P_Mat4 res = p_mat4_identity(); + float c = p_cosf(rad); + float s = p_sinf(rad); + res.m[0] = c; + res.m[1] = s; + res.m[4] = -s; + res.m[5] = c; + return res; +} + +PODEF P_Mat4 +p_mat4_perspective(float fov_rad, float aspect, float near_z, float far_z) +{ + P_Mat4 res = {0}; + float tan_half_fov = p_sinf(fov_rad * 0.5f) / p_cosf(fov_rad * 0.5f); + + res.m[0] = 1.0f / (aspect * tan_half_fov); + res.m[5] = 1.0f / tan_half_fov; + res.m[10] = far_z / (near_z - far_z); + res.m[11] = -1.0f; + res.m[14] = (near_z * far_z) / (near_z - far_z); + return res; +} diff --git a/Podium/p_math.h b/Podium/p_math.h new file mode 100644 index 0000000..1dad6ec --- /dev/null +++ b/Podium/p_math.h @@ -0,0 +1,33 @@ +typedef struct {int x, y; } Vec2i; +typedef struct {float x, y; } Vec2f; +typedef struct {float x, y, z; } Vec3f; +typedef struct { float m[16];} P_Mat4; // column-major: m[col * 4 + row] +PODEF int p_ceil(float x); +PODEF float p_cosf(float x); +PODEF float p_sinf(float x); + +PODEF Vec2f p_vec2f(float, float); +PODEF Vec2f p_vec2f_add(Vec2f, Vec2f); +PODEF float p_vec2f_cross(Vec2f, Vec2f); +PODEF float p_vec2f_dot(Vec2f, Vec2f); +PODEF Vec2f p_vec2f_mult(Vec2f a, float b); +PODEF Vec2f p_vec2f_sub(Vec2f, Vec2f); +PODEF Vec2i p_vec2i(float, float); +PODEF Vec2i p_vec2i_add(Vec2i, Vec2i); +PODEF float p_vec2i_cross(Vec2i, Vec2i); +PODEF float p_vec2i_dot(Vec2i, Vec2i); +PODEF Vec2i p_vec2i_mult(Vec2i a, float b); +PODEF Vec2i p_vec2i_sub(Vec2i, Vec2i); + +PODEF Vec3f p_vec3f(float, float, float); + +PODEF P_Mat4 p_mat4_identity(void); +PODEF P_Mat4 p_mat4_mul(P_Mat4 a, P_Mat4 b); +PODEF P_Mat4 p_mat4_translate(Vec3f v); +PODEF P_Mat4 p_mat4_translate_by(P_Mat4 m, Vec3f v); +PODEF P_Mat4 p_mat4_rotate_x(float rad); +PODEF P_Mat4 p_mat4_rotate_x_by(P_Mat4 m, float rad); +PODEF P_Mat4 p_mat4_rotate_y(float rad); +PODEF P_Mat4 p_mat4_rotate_y_by(P_Mat4 m, float rad); +PODEF P_Mat4 p_mat4_rotate_z(float rad); +PODEF P_Mat4 p_mat4_perspective(float fov_rad, float aspect, float near_z, float far_z); diff --git a/Podium/p_platform_linux.c b/Podium/p_platform_linux.c new file mode 100644 index 0000000..366e3d7 --- /dev/null +++ b/Podium/p_platform_linux.c @@ -0,0 +1,404 @@ +/* linux */ +#include <time.h> +#include <fcntl.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/stat.h> +#include <errno.h> +/* x11 */ +#include <X11/Xlib.h> +#include <X11/keysym.h> +/* pulse audio */ +#include <pulse/pulseaudio.h> +#include <pulse/simple.h> +#include <pulse/error.h> +/* joystick */ +#include <linux/joystick.h> + +typedef struct { + pa_simple *audio_stream; +} P_LinuxCtx; + +struct P_Window_Impl { + Display *display; + XImage *image; + Window window; + GC gc; + int screen; + int width; + int height; +}; + +P_LinuxCtx p_ctx = {0}; + +static inline P_KeyCode +_x11_translate_keycode(XEvent xev) +{ + static KeySym ks; + ks = XLookupKeysym(&xev.xkey, 0); + switch (ks) { + /* Arrow keys */ + case XK_Left: return P_KEY_LEFT; + case XK_Right: return P_KEY_RIGHT; + case XK_Up: return P_KEY_UP; + case XK_Down: return P_KEY_DOWN; + /* Common keys */ + case XK_space: return P_KEY_SPACE; + case XK_Escape: return P_KEY_ESCAPE; + case XK_Return: return P_KEY_ENTER; + case XK_A: case XK_a: return P_KEY_A; + case XK_B: case XK_b: return P_KEY_B; + case XK_C: case XK_c: return P_KEY_C; + case XK_D: case XK_d: return P_KEY_D; + case XK_E: case XK_e: return P_KEY_E; + case XK_F: case XK_f: return P_KEY_F; + case XK_G: case XK_g: return P_KEY_G; + case XK_H: case XK_h: return P_KEY_H; + case XK_I: case XK_i: return P_KEY_I; + case XK_J: case XK_j: return P_KEY_J; + case XK_K: case XK_k: return P_KEY_K; + case XK_L: case XK_l: return P_KEY_L; + case XK_M: case XK_m: return P_KEY_M; + case XK_N: case XK_n: return P_KEY_N; + case XK_O: case XK_o: return P_KEY_O; + case XK_P: case XK_p: return P_KEY_P; + case XK_Q: case XK_q: return P_KEY_Q; + case XK_R: case XK_r: return P_KEY_R; + case XK_S: case XK_s: return P_KEY_S; + case XK_T: case XK_t: return P_KEY_T; + case XK_U: case XK_u: return P_KEY_U; + case XK_V: case XK_v: return P_KEY_V; + case XK_W: case XK_w: return P_KEY_W; + case XK_X: case XK_x: return P_KEY_X; + case XK_Y: case XK_y: return P_KEY_Y; + case XK_Z: case XK_z: return P_KEY_Z; + default: return P_KEY_UNKNOWN; + } +} + +POAPI u64 +p_get_time(void) +{ + struct timespec ts; + clock_gettime(CLOCK_MONOTONIC, &ts); + return NANOS_PER_SEC * ts.tv_sec + ts.tv_nsec; +} + +POAPI void +p_sleep_ns(i64 ns) +{ + struct timespec ts; + ts.tv_sec = ns / 1000000000L; + ts.tv_nsec = ns % 1000000000L; + clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL); +} + +POAPI void +p_stdout(void *msg, usize bytes) +{ + write(1, msg, bytes); +} + +POAPI bool +p_file_exists(const char *path) +{ + return (access(path, F_OK) == 0); +} + +POAPI usize +p_file_size(const char *path) +{ + struct stat st; + if (stat(path, &st) == 0) { + return st.st_size; + } + return 0; +} + +PODEF void +p_file_load(const char *path, void *buf_ptr, unsigned long buf_size) +{ + int fd = open(path, O_RDONLY); + if (fd >= 0) { + read(fd, buf_ptr, (size_t)buf_size); + close(fd); + } +} + +PODEF void +p_file_write(const char *path, void *buf_ptr, unsigned long buf_size) +{ + int fd = open(path, O_WRONLY | O_CREAT | O_APPEND, 0644); + if (fd >= 0) { + write(fd, buf_ptr, (size_t)buf_size); + close(fd); + } +} + +POAPI bool +p_window_open(P_Window *win, int width, int height, const char *title) +{ + win->width = width; + win->height = height; + + XInitThreads(); + + win->display = XOpenDisplay(NULL); + if (win->display == NULL) { + PERROR("Cannot open display!"); + return false; + } + + int screen = DefaultScreen(win->display); + win->window = XCreateSimpleWindow( + win->display, + RootWindow(win->display, screen), + 0, 0, width, height, + 1, + BlackPixel(win->display, screen), + BlackPixel(win->display, screen) + ); + + win->screen = screen; + + XStoreName(win->display, win->window, title); + XSelectInput(win->display, win->window, + KeyPressMask | KeyReleaseMask | + ButtonPressMask | ButtonReleaseMask | + PointerMotionMask | StructureNotifyMask); + XMapWindow(win->display, win->window); + + win->gc = DefaultGC(win->display, screen); + + Atom wm_delete = XInternAtom(win->display, "WM_DELETE_WINDOW", False); + XSetWMProtocols(win->display, win->window, &wm_delete, 1); + + return true; +} + +POAPI void +p_window_close(P_Window *win) +{ + if (!win) return; + + if (win->image) { + // XDestroyImage(win->image); + win->image = NULL; + } + + if (win->display) { + Display *dpy = win->display; + Window w = win->window; + win->display = NULL; + win->window = 0; + + if (w) { + XDestroyWindow(dpy, w); + } + XSync(dpy, False); + } +} + +POAPI bool +p_window_is_open(P_Window *win) +{ + return win && win->display != NULL; +} + +POAPI void +p_window_size(P_Window *win, int *window_width, int *window_height) +{ + if (!win) return; + + XWindowAttributes attr; + XGetWindowAttributes(win->display, win->window, &attr); + *window_width = attr.width; + *window_height = attr.height; + + win->width = attr.width; + win->height = attr.height; +} + +POAPI void +p_window_draw(P_Window *win, u32 *pixels, int width, int height) +{ + int screen = win->screen; + + win->image = XCreateImage( + win->display, + DefaultVisual(win->display, screen), + DefaultDepth(win->display, screen), + ZPixmap, + 0, + (char*)pixels, + width, + height, + 32, + width * 4 + ); + + int window_width, window_height; + p_window_size(win, &window_width, &window_height); + + XPutImage( + win->display, + win->window, + win->gc, + win->image, + 0, 0, + 0, 0, + win->width, + win->height); + + XFlush(win->display); +} + +POAPI bool +p_window_poll_event(P_Window *win, P_Event *ev) +{ + if (XPending(win->display)) { + static XEvent xev; + XNextEvent(win->display, &xev); + + switch (xev.type) { + + case KeyPress: + ev->type = P_EVENT_KEY_DOWN; + ev->key.key = _x11_translate_keycode(xev); + return true; + + case KeyRelease: + ev->type = P_EVENT_KEY_UP; + ev->key.key = _x11_translate_keycode(xev); + return true; + + case ConfigureNotify: + ev->type = P_EVENT_WINDOW_RESIZE; + ev->resize.width = xev.xconfigure.width; + ev->resize.height = xev.xconfigure.height; + return true; + + case ClientMessage: + if ((Atom)xev.xclient.data.l[0] == + XInternAtom(win->display, "WM_DELETE_WINDOW", False)) { + ev->type = P_EVENT_WINDOW_CLOSE; + return true; + } + break; + + case MotionNotify: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_MOVED; + ev->pointer.button = 0; + ev->pointer.x = xev.xmotion.x; + ev->pointer.y = xev.xmotion.y; + return true; + + case ButtonPress: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_PRESSED; + ev->pointer.button = xev.xbutton.button; /* 1=LMB, 2=MMB, 3=RMB */ + ev->pointer.x = xev.xbutton.x; + ev->pointer.y = xev.xbutton.y; + return true; + + case ButtonRelease: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_RELEASED; + ev->pointer.button = xev.xbutton.button; + ev->pointer.x = xev.xbutton.x; + ev->pointer.y = xev.xbutton.y; + return true; + } + } + + ev->type = P_EVENT_NONE; + return false; +} + +POAPI void +p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc) +{ + pa_sample_spec ss = { + .format = PA_SAMPLE_S16LE, + .rate = sample_rate, + .channels = channels, + }; + + int error; + p_ctx.audio_stream = pa_simple_new( + NULL, + name, + PA_STREAM_PLAYBACK, + NULL, + desc, + &ss, + NULL, + NULL, + &error + ); + + if (!p_ctx.audio_stream) { + PERROR("PulseAudio init failed: %s\n", pa_strerror(error)); + exit(1); + } +} + +POAPI void +p_audio_quit() +{ + if (p_ctx.audio_stream) { + pa_simple_free(p_ctx.audio_stream); + p_ctx.audio_stream = NULL; + } +} + +POAPI void +p_audio_write(const i16 *samples, usize count) +{ + if (!p_ctx.audio_stream) return; + + int error; + if (pa_simple_write(p_ctx.audio_stream, samples, count * sizeof(i16), &error) < 0) { + PERROR("PulseAudio write failed: %s\n", pa_strerror(error)); + } + + pa_simple_drain(p_ctx.audio_stream, &error); +} + +#ifdef P_MODULE_VULKAN + +#ifndef VK_USE_PLATFORM_XLIB_KHR +#define VK_USE_PLATFORM_XLIB_KHR +#endif +#include <vulkan/vulkan_xlib.h> + +POAPI char** +p_vulkan_get_extensions() +{ + char **darr = NULL; + p_darray_push(darr, "VK_KHR_surface"); + p_darray_push(darr, "VK_KHR_xcb_surface"); + p_darray_push(darr, "VK_KHR_xlib_surface"); + return darr; +} + +POAPI bool +p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface) +{ + if (!instance || !window || !window->display || !window->window || !out_surface) { + return false; + } + + VkXlibSurfaceCreateInfoKHR create_info = {0}; + create_info.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR; + create_info.pNext = NULL; + create_info.flags = 0; + create_info.dpy = window->display; + create_info.window = window->window; + + VkResult result = vkCreateXlibSurfaceKHR(instance, &create_info, allocator, out_surface); + + return (result == VK_SUCCESS); +} +#endif diff --git a/Podium/p_platform_win32.c b/Podium/p_platform_win32.c new file mode 100644 index 0000000..556b43b --- /dev/null +++ b/Podium/p_platform_win32.c @@ -0,0 +1,402 @@ +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#include <mmsystem.h> +#include <xinput.h> /* gamepad support */ + +typedef struct { + HWAVEOUT wave_out; + WAVEHDR wave_header; +} P_Win32Ctx; + +struct P_Window_Impl { + HWND hwnd; + HDC hdc; + BITMAPINFO bitmap_info; + int width; + int height; + bool closed; +}; + +P_Win32Ctx p_ctx = {0}; + +static inline P_KeyCode +_win32_translate_vkey(WPARAM vk) +{ + switch (vk) { + case VK_LEFT: return P_KEY_LEFT; + case VK_RIGHT: return P_KEY_RIGHT; + case VK_UP: return P_KEY_UP; + case VK_DOWN: return P_KEY_DOWN; + case VK_SPACE: return P_KEY_SPACE; + case VK_ESCAPE: return P_KEY_ESCAPE; + case VK_RETURN: return P_KEY_ENTER; + case 'A': return P_KEY_A; + case 'B': return P_KEY_B; + case 'C': return P_KEY_C; + case 'D': return P_KEY_D; + case 'E': return P_KEY_E; + case 'F': return P_KEY_F; + case 'G': return P_KEY_G; + case 'H': return P_KEY_H; + case 'I': return P_KEY_I; + case 'J': return P_KEY_J; + case 'K': return P_KEY_K; + case 'L': return P_KEY_L; + case 'M': return P_KEY_M; + case 'N': return P_KEY_N; + case 'O': return P_KEY_O; + case 'P': return P_KEY_P; + case 'Q': return P_KEY_Q; + case 'R': return P_KEY_R; + case 'S': return P_KEY_S; + case 'T': return P_KEY_T; + case 'U': return P_KEY_U; + case 'V': return P_KEY_V; + case 'W': return P_KEY_W; + case 'X': return P_KEY_X; + case 'Y': return P_KEY_Y; + case 'Z': return P_KEY_Z; + default: return P_KEY_UNKNOWN; + } +} + +POAPI u64 +p_get_time(void) +{ + LARGE_INTEGER count, freq; + QueryPerformanceCounter(&count); + QueryPerformanceFrequency(&freq); + return (u64)((count.QuadPart * 1000000000ULL) / freq.QuadPart); +} + +POAPI void +p_sleep_ns(i64 ns) +{ + /* windows sleep is millisecond-based........ */ + Sleep((DWORD)(ns / 1000000)); +} + +POAPI void +p_stdout(void *msg, usize bytes) +{ + HANDLE stdout_handle = GetStdHandle(STD_OUTPUT_HANDLE); + DWORD bytes_written; + WriteFile(stdout_handle, msg, bytes, &bytes_written, NULL); +} + +POAPI bool +p_file_exists(const char *path) +{ + DWORD attr = GetFileAttributesA(path); + return (attr != INVALID_FILE_ATTRIBUTES && !(attr & FILE_ATTRIBUTE_DIRECTORY)); +} + +POAPI usize +p_file_size(const char *path) +{ + WIN32_FILE_ATTRIBUTE_DATA data; + if (GetFileAttributesExA(path, GetFileExInfoStandard, &data)) { + return data.nFileSizeLow; + } + return 0; +} + +PODEF void +p_file_load(const char *path, void *buf_ptr, unsigned long buf_size) +{ + HANDLE file = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); + if (file != INVALID_HANDLE_VALUE) { + DWORD bytes_read; + ReadFile(file, buf_ptr, buf_size, &bytes_read, NULL); + CloseHandle(file); + } +} + +PODEF void +p_file_write(const char *path, void *buf_ptr, unsigned long buf_size) +{ + HANDLE file = CreateFileA(path, GENERIC_WRITE, 0, NULL, + CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); + if (file != INVALID_HANDLE_VALUE) { + DWORD bytes_written; + WriteFile(file, buf_ptr, buf_size, &bytes_written, NULL); + CloseHandle(file); + } +} + +static LRESULT CALLBACK +_win32_wnd_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) { + P_Window *win = (P_Window*)GetWindowLongPtrA(hwnd, GWLP_USERDATA); + switch (msg) { + case WM_CLOSE: + /* Handled in poll_event; mark as closed */ + if (win) win->closed = true; + return 0; + } + return DefWindowProcA(hwnd, msg, wparam, lparam); +} + +POAPI bool +p_window_open(P_Window *win, int width, int height, const char *title) +{ + HINSTANCE instance = GetModuleHandleA(NULL); + + WNDCLASSA wc = {0}; + wc.lpfnWndProc = _win32_wnd_proc; + wc.hInstance = instance; + wc.lpszClassName = "P_Window_Class"; + wc.hCursor = LoadCursor(NULL, IDC_ARROW); + + RegisterClassA(&wc); + + win->hwnd = CreateWindowExA(0, wc.lpszClassName, title, + WS_OVERLAPPEDWINDOW | WS_VISIBLE, + CW_USEDEFAULT, CW_USEDEFAULT, width, height, + NULL, NULL, instance, NULL); + + if (!win->hwnd) return false; + + SetWindowLongPtrA(win->hwnd, GWLP_USERDATA, (LONG_PTR)win); + win->hdc = GetDC(win->hwnd); + win->width = width; + win->height = height; + win->closed = false; + + return true; +} + +POAPI void +p_window_close(P_Window *win) +{ + if (!win) return; + if (win->hdc) ReleaseDC(win->hwnd, win->hdc); + if (win->hwnd) DestroyWindow(win->hwnd); + win->hdc = NULL; + win->hwnd = NULL; +} + +POAPI bool +p_window_is_open(P_Window *win) +{ + return win && win->hwnd != NULL; +} + +POAPI void +p_window_size(P_Window *win, int *window_width, int *window_height) +{ + if (!win) return; + RECT rect; + GetClientRect(win->hwnd, &rect); + *window_width = rect.right - rect.left; + *window_height = rect.bottom - rect.top; + win->width = *window_width; + win->height = *window_height; +} + +POAPI void +p_window_draw(P_Window *win, u32 *pixels, int width, int height) +{ + BITMAPINFO bmi = {0}; + bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader); + bmi.bmiHeader.biWidth = width; + bmi.bmiHeader.biHeight = -height; /* top-down */ + bmi.bmiHeader.biPlanes = 1; + bmi.bmiHeader.biBitCount = 32; + bmi.bmiHeader.biCompression = BI_RGB; + + StretchDIBits(win->hdc, + 0, 0, win->width, win->height, + 0, 0, width, height, + pixels, &bmi, DIB_RGB_COLORS, SRCCOPY); +} + +POAPI bool +p_window_poll_event(P_Window *win, P_Event *ev) +{ + if (win->closed) { + win->closed = false; + ev->type = P_EVENT_WINDOW_CLOSE; + return true; + } + + MSG msg; + while (PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE)) { + switch (msg.message) { + + case WM_QUIT: + ev->type = P_EVENT_WINDOW_CLOSE; + return true; + + /* Key press */ + case WM_KEYDOWN: + case WM_SYSKEYDOWN: + ev->type = P_EVENT_KEY_DOWN; + ev->key.key = _win32_translate_vkey(msg.wParam); + return true; + + /* Key release */ + case WM_KEYUP: + case WM_SYSKEYUP: + ev->type = P_EVENT_KEY_UP; + ev->key.key = _win32_translate_vkey(msg.wParam); + return true; + + /* Mouse movement */ + case WM_MOUSEMOVE: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_MOVED; + ev->pointer.button = 0; + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + /* Mouse buttons */ + case WM_LBUTTONDOWN: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_PRESSED; + ev->pointer.button = 1; /* 1 = LMB, matching X11 convention */ + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + case WM_LBUTTONUP: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_RELEASED; + ev->pointer.button = 1; + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + case WM_RBUTTONDOWN: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_PRESSED; + ev->pointer.button = 3; /* 3 = RMB */ + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + case WM_RBUTTONUP: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_RELEASED; + ev->pointer.button = 3; + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + case WM_MBUTTONDOWN: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_PRESSED; + ev->pointer.button = 2; /* 2 = MMB */ + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + case WM_MBUTTONUP: + ev->type = P_EVENT_POINTER; + ev->pointer.state = P_POINTER_RELEASED; + ev->pointer.button = 2; + ev->pointer.x = (u32)(msg.lParam & 0xFFFF); + ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF); + return true; + + /* Window resize */ + case WM_SIZE: + ev->type = P_EVENT_WINDOW_RESIZE; + ev->resize.width = (u32)(msg.lParam & 0xFFFF); + ev->resize.height = (u32)((msg.lParam >> 16) & 0xFFFF); + win->width = ev->resize.width; + win->height = ev->resize.height; + return true; + + default: + TranslateMessage(&msg); + DispatchMessageA(&msg); + break; + } + } + + ev->type = P_EVENT_NONE; + return false; +} + + +POAPI void +p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc) +{ + (void)name; (void)desc; /* WinMM doesn't use a stream name */ + + WAVEFORMATEX wfx = {0}; + wfx.wFormatTag = WAVE_FORMAT_PCM; + wfx.nChannels = channels; + wfx.nSamplesPerSec = sample_rate; + wfx.wBitsPerSample = 16; + wfx.nBlockAlign = (wfx.nChannels * wfx.wBitsPerSample) / 8; + wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign; + + if (waveOutOpen(&p_ctx.wave_out, WAVE_MAPPER, &wfx, 0, 0, CALLBACK_NULL) != MMSYSERR_NOERROR) { + exit(1); + } +} + +POAPI void +p_audio_quit() +{ + if (p_ctx.wave_out) { + waveOutReset(p_ctx.wave_out); + waveOutClose(p_ctx.wave_out); + p_ctx.wave_out = NULL; + } +} + +POAPI void +p_audio_write(const i16 *samples, usize count) +{ + if (!p_ctx.wave_out) return; + + WAVEHDR header = {0}; + header.lpData = (LPSTR)samples; + header.dwBufferLength = (DWORD)(count * sizeof(i16)); + + waveOutPrepareHeader(p_ctx.wave_out, &header, sizeof(WAVEHDR)); + waveOutWrite(p_ctx.wave_out, &header, sizeof(WAVEHDR)); + + /* wait for playback to finish (synchronous, mirrors pa_simple_drain) */ + while (!(header.dwFlags & WHDR_DONE)) Sleep(1); + + waveOutUnprepareHeader(p_ctx.wave_out, &header, sizeof(WAVEHDR)); +} + +#ifdef P_MODULE_VULKAN + +#ifndef VK_USE_PLATFORM_WIN32_KHR +#define VK_USE_PLATFORM_WIN32_KHR +#endif +#include <vulkan/vulkan_win32.h> + +POAPI char** +p_vulkan_get_extensions() +{ + char **darr = NULL; + p_darray_push(darr, "VK_KHR_surface"); + p_darray_push(darr, "VK_KHR_win32_surface"); + return darr; +} + +POAPI bool +p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface) +{ + if (!instance || !window || !window->hwnd || !out_surface) { + return false; + } + + VkWin32SurfaceCreateInfoKHR create_info = {0}; + create_info.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR; + create_info.pNext = NULL; + create_info.flags = 0; + create_info.hwnd = window->hwnd; + create_info.hinstance = GetModuleHandleA(NULL); + + VkResult result = vkCreateWin32SurfaceKHR(instance, &create_info, allocator, out_surface); + return (result == VK_SUCCESS); +} +#endif diff --git a/Podium/p_string.c b/Podium/p_string.c new file mode 100644 index 0000000..73cb0ea --- /dev/null +++ b/Podium/p_string.c @@ -0,0 +1,201 @@ +PODEF char* +p_find_char(char *buf, char needle) +{ + while (buf && *buf != needle) buf++; + return buf; +} + +PODEF bool +p_strcmp(const char *a, const char *b) +{ + if (p_strlen(a) != p_strlen(b)) + return false; + + while (a && b && *a != '\0') { + if (*(a++) != *(b++)) return false; + } + + return true; +} + +PODEF int +p_strlen(const char *a) +{ + int i = 0; + while (*a++ != '\0') i++; + return i; +} + +PODEF int +p_strtoi(const char *str) +{ + int res = 0; + + while (*str) { + if (*str >= '0' && *str <= '9') { + res = res * 10 + (*str - '0'); + } else { + return res; + } + str++; + } + + return res; +} + +PODEF char* +p_strtok(const char *str, char c) +{ + while (*str != c && *str++ != '\0'); + return (*str == c) ? (char*) ++str : 0; +} + +PODEF P_StringView +p_strview(const char *cstr) +{ + P_StringView sv = {0}; + sv.cstr = cstr; + sv.len = p_strlen(cstr); + return sv; +} + +PODEF void +p_strview_chop_left(P_StringView *sv, u32 n) +{ + if (n > sv->len) n = sv->len; + sv->cstr += n; + sv->len -= n; +} + +PODEF void +p_strview_chop_right(P_StringView *sv, u32 n) +{ + if (n > sv->len) n = sv->len; + sv->len -= n; +} + +PODEF P_StringView +p_strview_chop_delim(P_StringView *sv, char delim) +{ + u32 i = 0; + while (i < sv->len && sv->cstr[i] != delim) { + i++; + } + + P_StringView tok; + if (i < sv->len) { + tok.cstr = sv->cstr; + tok.len = i; + p_strview_chop_left(sv, i + 1); + return tok; + } + + tok = *sv; + p_strview_chop_left(sv, sv->len); + return tok; +} + +PODEF P_StringView +p_strview_chop_type(P_StringView *sv, int(*istype)(int)) +{ + u32 i = 0; + while (i < sv->len && istype(sv->cstr[i])) { + i++; + } + + P_StringView tok; + if (i < sv->len) { + tok.cstr = sv->cstr; + tok.len = i; + p_strview_chop_left(sv, i + 1); + return tok; + } + + tok = *sv; + p_strview_chop_left(sv, sv->len); + return tok; +} + + +PODEF void +p_strview_trim_left(P_StringView *sv) +{ + while (sv->len > 0 && p_is_space(sv->cstr[0])) { + p_strview_chop_left(sv, 1); + } +} + +PODEF void +p_strview_trim_right(P_StringView *sv) +{ + while (sv->len > 0 && p_is_space(sv->cstr[sv->len-1])) { + p_strview_chop_right(sv, 1); + } +} + +PODEF void +p_strview_trim(P_StringView *sv) +{ + p_strview_trim_left(sv); + p_strview_trim_right(sv); +} + +PODEF int +p_is_space(int c) +{ + /* Checks for: space, form feed (\f), line feed (\n), + * carriage return (\r), horizontal tab (\t), vertical tab (\v) */ + return (c == ' ' || (c >= '\t' && c <= '\r')); +} + +PODEF int +p_is_digit(int c) +{ + return (c >= '0' && c <= '9'); +} + +PODEF int +p_is_alpha(int c) +{ + return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')); +} + +PODEF int +p_is_alnum(int c) +{ + return (p_is_alpha(c) || p_is_digit(c)); +} + +PODEF int +p_is_hex(int c) +{ + return (p_is_digit(c) || + (c >= 'a' && c <= 'f') || + (c >= 'A' && c <= 'F')); +} + +PODEF int +p_is_upper(int c) +{ + return (c >= 'A' && c <= 'Z'); +} + +PODEF int +p_is_lower(int c) +{ + return (c >= 'a' && c <= 'z'); +} + +PODEF int +p_to_lower(int c) +{ + if (p_is_upper(c)) return (c + ('a' - 'A')); + return c; +} + +PODEF int +p_to_upper(int c) +{ + if (p_is_lower(c)) return (c - ('a' - 'A')); + return c; +} diff --git a/Podium/p_string.h b/Podium/p_string.h new file mode 100644 index 0000000..5c4077b --- /dev/null +++ b/Podium/p_string.h @@ -0,0 +1,38 @@ +typedef struct { + const char *cstr; + u32 len; +} P_StringView; + +typedef struct { + P_StringView sv; +} P_StringBuilder; + +/* Classic C string functions */ +PODEF char* p_find_char(char *buf, char needle); +PODEF bool p_strcmp(const char *a, const char *b); +PODEF int p_strlen(const char *a); +PODEF int p_strtoi(const char *str); +PODEF char* p_strtok(const char *str, char c); + +/* String views */ +PODEF P_StringView p_strview(const char *cstr); +PODEF void p_strview_chop_left(P_StringView *sv, u32 n); +PODEF void p_strview_chop_right(P_StringView *sv, u32 n); +PODEF P_StringView p_strview_chop_delim(P_StringView *sv, char delim); +PODEF P_StringView p_strview_chop_type(P_StringView *sv, int(*istype)(int)); +PODEF void p_strview_trim_left(P_StringView *sv); +PODEF void p_strview_trim_right(P_StringView *sv); +PODEF void p_strview_trim(P_StringView *sv); + +/* Classification */ +PODEF int p_is_space(int c); +PODEF int p_is_digit(int c); +PODEF int p_is_alpha(int c); +PODEF int p_is_alnum(int c); +PODEF int p_is_upper(int c); +PODEF int p_is_lower(int c); +PODEF int p_is_hex(int c); + +/* Transformation */ +PODEF int p_to_lower(int c); +PODEF int p_to_upper(int c); diff --git a/Podium/p_types.h b/Podium/p_types.h new file mode 100644 index 0000000..1da81be --- /dev/null +++ b/Podium/p_types.h @@ -0,0 +1,88 @@ +#ifndef _PODIUM_TYPES_ +#define _PODIUM_TYPES_ + +#define NANOS_PER_SEC (1000*1000*1000) +#define P_PI_HALF 1.57079632679f +#define P_PI 3.14159265f +#define P_PI2 6.28318531f +#define P_PI_POW2 9.86960440f + +#ifdef NDEBUG + #define assert(x) ((void)0) +#else + #ifndef assert + #define assert(x) \ + do { \ + if (!(x)) { \ + __builtin_trap(); \ + } \ + } while (0) + #endif +#endif + +#ifndef BUFSIZ + #define BUFSIZ 8192 +#endif + +typedef unsigned char u8; +typedef signed char i8; +typedef unsigned short u16; +typedef short i16; +typedef unsigned int u32; +typedef int i32; +typedef unsigned long long u64; +typedef long long i64; +typedef float f32; +typedef double f64; + +#ifndef __cplusplus +#define bool _Bool +#define false 0 +#define true 1 +#endif + +/* C++ uses static_assert, C11 uses _Static_assert */ +#ifdef __cplusplus + #define STATIC_ASSERT static_assert +#else + #define STATIC_ASSERT _Static_assert +#endif + +STATIC_ASSERT(sizeof(u8) == 1, "u8 must be 1 byte"); +STATIC_ASSERT(sizeof(u16) == 2, "u16 must be 2 bytes"); +STATIC_ASSERT(sizeof(u32) == 4, "u32 must be 4 bytes"); +STATIC_ASSERT(sizeof(u64) == 8, "u64 must be 8 bytes"); + +STATIC_ASSERT(sizeof(i8) == 1, "i8 must be 1 byte"); +STATIC_ASSERT(sizeof(i16) == 2, "i16 must be 2 bytes"); +STATIC_ASSERT(sizeof(i32) == 4, "i32 must be 4 bytes"); +STATIC_ASSERT(sizeof(i64) == 8, "i64 must be 8 bytes"); + +STATIC_ASSERT(sizeof(f32) == 4, "f32 must be 4 bytes"); +STATIC_ASSERT(sizeof(f64) == 8, "f64 must be 8 bytes"); +#define U8_MAX 255 +#define U16_MAX 65535 +#define U32_MAX 4294967295 + +/* Architecture specific sizing */ +#if defined(__x86_64__) || defined(__aarch64__) || defined(_M_X64) + typedef u64 usize; + typedef u64 uintptr; + typedef u32 idx; + STATIC_ASSERT(sizeof(usize) == 8, "usize must be 8 bytes on 64-bit"); +#else + typedef u32 usize; + typedef u32 uintptr; + typedef u16 idx; + STATIC_ASSERT(sizeof(usize) == 4, "usize must be 4 bytes on 32-bit"); +#endif + +#ifndef NULL + #ifdef __cplusplus + #define NULL 0 + #else + #define NULL ((void*)0) + #endif +#endif + +#endif // _PODIUM_TYPES_ diff --git a/Podium/podium.c b/Podium/podium.c new file mode 100644 index 0000000..306e337 --- /dev/null +++ b/Podium/podium.c @@ -0,0 +1 @@ +#define PODIUM_IMPLEMENTATION diff --git a/Podium/podium.h b/Podium/podium.h new file mode 100644 index 0000000..d94b4e5 --- /dev/null +++ b/Podium/podium.h @@ -0,0 +1,2269 @@ +/* ===========================================================================
+ * PODIUM - Kitchen Sink - Copyright (c) 2026 Vasco Alves
+ *
+ * ---------------------------------------------------------------------------
+ * To stand on the shoulders of giants...
+ * Giants must stand still!"
+ * - Eskil Steenberg - "You should finish your software" – BSC 2025
+ * ---------------------------------------------------------------------------
+ *
+ * PREFIX: P_ (types) or p_ (functions & variables)
+ *
+ * COMPILE TIME FLAGS
+ * | Name | Description |
+ * |-----------------|---------------------------------------------------------|
+ * | PODIUM_WIN32 | Used to explicitly compile for Windows. |
+ * | PODIUM_LINUX | Used to explicitly compile for Linux and FreeBSD. |
+ *
+ * MODULES
+ * | Name | Description |
+ * |-----------------|---------------------------------------------------------|
+ * | P_MODULE_VULKAN | Gives access to vulkan related utilities. |
+ * | P_MODULE_STRING | Include string manipulation utilities. |
+ * | P_MODULE_MATH | Trigonometry and linear algebra functions. |
+ * | P_MODULE_ALLOC | Memory allocators: Arena, Stack & Pool. |
+ *
+ * =========================================================================== */
+
+#ifndef _PODIUM_H_
+#define _PODIUM_H_
+
+#define PODIUM_MAJOR "0" // needs more revisions and use to reach 1.0 status
+#define PODIUM_MINOR "2" // vulkan module
+#define PODIUM_PATCH "2" // gamepad
+
+#define POAPI static inline
+#define PODEF static inline
+
+/*
+ * Auto-detect platforms.
+ */
+
+/* Windows */
+#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__TOS_WIN__)
+ #define PODIUM_WIN32
+ #ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+ #endif
+/* Apple */
+#elif defined(__APPLE__) || defined(__MACH__)
+ #include <TargetConditionals.h>
+ #define PODIUM_APPLE
+ #if TARGET_OS_IPHONE
+ #define PODIUM_IOS
+ #else
+ #define PODIUM_MACOS
+ #endif
+/* Linux / BSD */
+#elif defined(__linux__) || defined(__FreeBSD__)
+ #define PODIUM_LINUX
+ #ifndef _POSIX_C_SOURCE
+ #define _POSIX_C_SOURCE 200112L
+ #endif
+#endif
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h> /* memcpy */
+#include <stdio.h> /* vsnprintf */
+
+/*
+ * NOTE: The <REPLACE> comments are used by the build
+ * script to know what includes to inline into the
+ * final single header file!
+ */
+
+/* --- Start of p_types.h --- */
+#ifndef _PODIUM_TYPES_
+#define _PODIUM_TYPES_
+
+#define NANOS_PER_SEC (1000*1000*1000)
+#define P_PI_HALF 1.57079632679f
+#define P_PI 3.14159265f
+#define P_PI2 6.28318531f
+#define P_PI_POW2 9.86960440f
+
+#ifdef NDEBUG
+ #define assert(x) ((void)0)
+#else
+ #ifndef assert
+ #define assert(x) \
+ do { \
+ if (!(x)) { \
+ __builtin_trap(); \
+ } \
+ } while (0)
+ #endif
+#endif
+
+#ifndef BUFSIZ
+ #define BUFSIZ 8192
+#endif
+
+typedef unsigned char u8;
+typedef signed char i8;
+typedef unsigned short u16;
+typedef short i16;
+typedef unsigned int u32;
+typedef int i32;
+typedef unsigned long long u64;
+typedef long long i64;
+typedef float f32;
+typedef double f64;
+
+#ifndef __cplusplus
+#define bool _Bool
+#define false 0
+#define true 1
+#endif
+
+/* C++ uses static_assert, C11 uses _Static_assert */
+#ifdef __cplusplus
+ #define STATIC_ASSERT static_assert
+#else
+ #define STATIC_ASSERT _Static_assert
+#endif
+
+STATIC_ASSERT(sizeof(u8) == 1, "u8 must be 1 byte");
+STATIC_ASSERT(sizeof(u16) == 2, "u16 must be 2 bytes");
+STATIC_ASSERT(sizeof(u32) == 4, "u32 must be 4 bytes");
+STATIC_ASSERT(sizeof(u64) == 8, "u64 must be 8 bytes");
+
+STATIC_ASSERT(sizeof(i8) == 1, "i8 must be 1 byte");
+STATIC_ASSERT(sizeof(i16) == 2, "i16 must be 2 bytes");
+STATIC_ASSERT(sizeof(i32) == 4, "i32 must be 4 bytes");
+STATIC_ASSERT(sizeof(i64) == 8, "i64 must be 8 bytes");
+
+STATIC_ASSERT(sizeof(f32) == 4, "f32 must be 4 bytes");
+STATIC_ASSERT(sizeof(f64) == 8, "f64 must be 8 bytes");
+#define U8_MAX 255
+#define U16_MAX 65535
+#define U32_MAX 4294967295
+
+/* Architecture specific sizing */
+#if defined(__x86_64__) || defined(__aarch64__) || defined(_M_X64)
+ typedef u64 usize;
+ typedef u64 uintptr;
+ typedef u32 idx;
+ STATIC_ASSERT(sizeof(usize) == 8, "usize must be 8 bytes on 64-bit");
+#else
+ typedef u32 usize;
+ typedef u32 uintptr;
+ typedef u16 idx;
+ STATIC_ASSERT(sizeof(usize) == 4, "usize must be 4 bytes on 32-bit");
+#endif
+
+#ifndef NULL
+ #ifdef __cplusplus
+ #define NULL 0
+ #else
+ #define NULL ((void*)0)
+ #endif
+#endif
+
+#endif // _PODIUM_TYPES_
+/* --- End of p_types.h --- */
+/* --- Start of p_log.h --- */
+/*
+ * Logging!
+ */
+
+#include <stdlib.h>
+
+#ifdef DEBUG
+#define LOG_DEBUG(...) PRINTF(__VA_ARGS__)
+#else
+#define LOG_DEBUG(...) ((void)0)
+#endif
+
+/* fatal and error always enabled */
+#define PFATAL(message, ...) p_log_printf(P_LOG_LEVEL_FATAL, message, ##__VA_ARGS__)
+#define PERROR(message, ...) p_log_printf(P_LOG_LEVEL_ERROR, message, ##__VA_ARGS__)
+
+/* warn and info enabled by default but can be disabled */
+#define P_LOG_WARN_ENABLED 1
+#define P_LOG_INFO_ENABLED 1
+
+#if P_LOG_WARN_ENABLED == 1
+#define PWARN(message, ...) p_log_printf(P_LOG_LEVEL_WARN, message, ##__VA_ARGS__)
+#else
+#define PWARN(message, ...)
+#endif
+
+#if P_LOG_INFO_ENABLED == 1
+#define PINFO(message, ...) p_log_printf(P_LOG_LEVEL_INFO, message, ##__VA_ARGS__)
+#else
+#define PINFO(message, ...)
+#endif
+
+#if P_LOG_DEBUG_ENABLED == 1
+#define PDEBUG(message, ...) p_log_printf(P_LOG_LEVEL_DEBUG, message, ##__VA_ARGS__)
+#else
+#define PDEBUG(message, ...)
+#endif
+
+#if P_LOG_TRACE_ENABLED == 1
+#define PTRACE(message, ...) p_log_printf(P_LOG_LEVEL_TRACE, message, ##__VA_ARGS__)
+#else
+#define PTRACE(message, ...)
+#endif
+
+typedef enum P_Log_Level {
+ P_LOG_LEVEL_FATAL = 0,
+ P_LOG_LEVEL_ERROR,
+ P_LOG_LEVEL_WARN,
+ P_LOG_LEVEL_INFO,
+ P_LOG_LEVEL_DEBUG,
+ P_LOG_LEVEL_TRACE,
+ P_COUNT_LOG_LEVEL
+} P_Log_Level;
+
+#define P_PREFIX_LEN 7
+static const char *p_prefix[P_COUNT_LOG_LEVEL] = {
+ [P_LOG_LEVEL_FATAL] = "[FATAL]",
+ [P_LOG_LEVEL_ERROR] = "[ERROR]",
+ [P_LOG_LEVEL_WARN] = "[WARNI]",
+ [P_LOG_LEVEL_INFO] = "[INFOR]",
+ [P_LOG_LEVEL_DEBUG] = "[DEBUG]",
+ [P_LOG_LEVEL_TRACE] = "[TRACE]",
+};
+
+#define P_MAX_ALLOCS 512
+
+typedef struct P_DebugMemoryInfo {
+ void *ptr;
+ size_t size;
+ const char *file;
+ const char *func;
+ int line;
+} P_DebugMemoryInfo;
+
+static uint64_t p_alloc_count = 0;
+static P_DebugMemoryInfo p_ptr_array[P_MAX_ALLOCS];
+
+static inline void *
+p_debug_malloc_impl(size_t size, const char *file, int line, const char *func)
+{
+ void *ptr = malloc(size);
+ printf("[ALLOC] %p (%zu bytes) -> %s:%d %s()\n", ptr, size, file, line, func);
+
+ if (ptr) {
+ if (p_alloc_count < P_MAX_ALLOCS) {
+ p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){
+ .ptr = ptr,
+ .size = size,
+ .file = file,
+ .func = func,
+ .line = line
+ };
+ } else {
+ fprintf(stderr, "[ERROR] Debug allocator tracking capacity (%d) exceeded!\n", P_MAX_ALLOCS);
+ }
+ }
+ return ptr;
+}
+
+static inline void
+p_debug_free_impl(void *ptr, const char *file, int line, const char *func)
+{
+ printf("[FREE] %p -> %s:%d %s()\n", ptr, file, line, func);
+
+ if (!ptr) return; // Standard C allows free(NULL)
+
+ bool found = false;
+ uint64_t index = 0;
+
+ /* Find allocation metadata */
+ for (index = 0; index < p_alloc_count; ++index) {
+ if (p_ptr_array[index].ptr == ptr) {
+ found = true;
+ break;
+ }
+ }
+
+ if (found) {
+ /* Shift array left to remove tracked struct */
+ for (uint64_t j = index; j < p_alloc_count - 1; ++j) {
+ p_ptr_array[j] = p_ptr_array[j + 1];
+ }
+ p_alloc_count--;
+ } else {
+ fprintf(stderr, "[WARNING] Attempted to free untracked/double-freed pointer %p at %s:%d %s()\n",
+ ptr, file, line, func);
+ }
+
+ free(ptr);
+}
+
+static inline void *
+p_debug_realloc_impl(void *ptr, size_t size, const char *file, int line, const char *func)
+{
+ if (!ptr) {
+ return p_debug_malloc_impl(size, file, line, func);
+ }
+ if (size == 0) {
+ p_debug_free_impl(ptr, file, line, func);
+ return NULL;
+ }
+
+ void *new_ptr = realloc(ptr, size);
+ printf("[REALLOC] %p -> %p (%zu bytes) -> %s:%d %s()\n", ptr, new_ptr, size, file, line, func);
+
+ if (new_ptr) {
+ bool found = false;
+ for (uint64_t i = 0; i < p_alloc_count; ++i) {
+ if (p_ptr_array[i].ptr == ptr) {
+ p_ptr_array[i].ptr = new_ptr;
+ p_ptr_array[i].size = size;
+ p_ptr_array[i].file = file;
+ p_ptr_array[i].line = line;
+ p_ptr_array[i].func = func;
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ if (p_alloc_count < P_MAX_ALLOCS) {
+ p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){
+ .ptr = new_ptr,
+ .size = size,
+ .file = file,
+ .func = func,
+ .line = line
+ };
+ }
+ }
+ }
+ return new_ptr;
+}
+
+static void
+p_debug_memory_report(void)
+{
+ printf("\n==================== MEMORY REPORT ====================\n");
+ printf("Remaining unfreed allocations: %lu\n", (unsigned long)p_alloc_count);
+
+ for (uint64_t i = 0; i < p_alloc_count; ++i) {
+ P_DebugMemoryInfo *info = &p_ptr_array[i];
+ printf("[LEAK] %p (%zu bytes) allocated at %s:%d in %s()\n",
+ info->ptr, info->size, info->file, info->line, info->func);
+ }
+ printf("=======================================================\n");
+}
+/* --- End of p_log.h --- */
+/* --- Start of p_ds.h --- */
+#define DEFAULT_ALIGNMENT (2 * sizeof(void *))
+#define ARRAY_GROW_FACTOR 2
+
+typedef struct {
+ u32 size;
+ u32 capacity;
+} DynamicArrayHeader;
+
+#define DARRAY_INIT_CAPACITY 64
+#define p_darray_push(array, var) \
+ do { \
+ if (array == NULL) { \
+ DynamicArrayHeader *header = \
+ malloc(DARRAY_INIT_CAPACITY * sizeof *array + sizeof *header); \
+ header->size = 0; \
+ header->capacity = DARRAY_INIT_CAPACITY; \
+ array = (void *)(header + 1); \
+ } \
+ DynamicArrayHeader *header = (DynamicArrayHeader *)(array) - 1; \
+ if (header->size >= header->capacity - 1) { \
+ unsigned long new_capacity = header->capacity * 2; \
+ DynamicArrayHeader *new_header = \
+ realloc(header, new_capacity * sizeof *array + sizeof *header); \
+ if (!new_header) \
+ break; \
+ header = new_header; \
+ array = (void *)(header + 1); \
+ header->capacity = new_capacity; \
+ } \
+ (array)[header->size++] = var; \
+ } while (0)
+
+#define p_darray_len(array) ((array) ? ((DynamicArrayHeader *)(array) - 1)->size : 0)
+#define p_darray_destroy(array) \
+{ \
+ free((DynamicArrayHeader *)(array) - 1); \
+}
+
+#define p_darray_shrink(array) \
+ do { \
+ DynamicArrayHeader *header = (array) ? ((DynamicArrayHeader *)(array) - 1) : 0;\
+ if (header) {\
+ if (header->capacity > 4) {\
+ unsigned long new_capacity = (header->capacity >> 1) + (header->capacity & 1); \
+ void *new_header = realloc(header, new_capacity * sizeof *array + sizeof *header); \
+ if (!new_header) break; \
+ header = new_header; \
+ array = (void *)(header + 1); \
+ header->capacity = new_capacity; \
+ }\
+ }\
+ } while (0)
+/* --- End of p_ds.h --- */
+
+/*
+ * Main Platform Types (Keyboard, Events, Context, etc.)
+ */
+
+typedef enum {
+ P_KEYMOD_ALT = 0,
+ P_KEYMOD_SHIFT,
+ P_KEYMOD_CTRL,
+ P_KEYMOD_CAPS,
+} P_KeyMod;
+
+typedef enum {
+ P_KEY_UNKNOWN = 0,
+ P_KEY_UP, P_KEY_DOWN, P_KEY_LEFT, P_KEY_RIGHT,
+ P_KEY_SPACE, P_KEY_ESCAPE, P_KEY_ENTER,
+ P_KEY_A, P_KEY_B, P_KEY_C, P_KEY_D, P_KEY_E, P_KEY_F, P_KEY_G, P_KEY_H, P_KEY_I,
+ P_KEY_J, P_KEY_K, P_KEY_L, P_KEY_M, P_KEY_N, P_KEY_O, P_KEY_P, P_KEY_Q, P_KEY_R,
+ P_KEY_S, P_KEY_T, P_KEY_U, P_KEY_V, P_KEY_W, P_KEY_X, P_KEY_Y, P_KEY_Z,
+} P_KeyCode;
+
+/* Platform event type */
+typedef enum {
+ P_EVENT_NONE = 0,
+ P_EVENT_KEY_DOWN,
+ P_EVENT_KEY_UP,
+ P_EVENT_WINDOW_CLOSE,
+ P_EVENT_WINDOW_RESIZE,
+ P_EVENT_POINTER,
+ P_EVENT_CONTROLLER_CONNECTED,
+ P_EVENT_CONTROLLER_DISCONNECTED,
+} P_EvenType;
+
+typedef enum {
+ P_POINTER_MOVED = 0,
+ P_POINTER_PRESSED,
+ P_POINTER_RELEASED
+} P_PointerState;
+
+typedef struct {
+ P_EvenType type;
+ union {
+ struct {P_KeyCode key; P_KeyMod mod; } key;
+ struct { u32 width, height; } resize;
+ struct { P_PointerState state; u32 button; u32 x, y; } pointer;
+ };
+} P_Event;
+
+/*
+ * Platform dependent functions to be implemented by each layer.
+ */
+
+POAPI u64 p_get_time(void); // Get time in nanoseconds.
+POAPI void p_sleep_ns(i64 ns); // Sleep for nanoseconds.
+
+POAPI void p_stdout(void *msg, usize bytes); // Print buffer to stdout.
+PODEF void p_log_printf(P_Log_Level level, const char* src, ...); // Print buffer to stdout.
+
+
+POAPI void* p_file_alloc(const char *path, unsigned long *buf_size);
+POAPI bool p_file_exists(const char *path); // Check if file exists.
+POAPI usize p_file_size(const char *path); // Check file size.
+POAPI void p_file_load(const char *path, void *buf_ptr, unsigned long buf_size); // Load file to buffer.
+PODEF void p_file_write(const char *path, void *buf_ptr, unsigned long buf_size); // Write buffer to file.
+
+typedef struct P_Window_Impl P_Window;
+POAPI bool p_window_open(P_Window *win, int width, int height, const char *title); // Opens a window. Returns false on failure.
+POAPI void p_window_close(P_Window *win); // Close window.
+POAPI bool p_window_is_open(P_Window *win); // Check if window is open.
+POAPI void p_window_size(P_Window *win, int *window_width, int *window_height); // Get window size.
+POAPI void p_window_draw(P_Window *win, u32 *pixels, int width, int height); // Draw directly to the window's buffer. Normally much slower than using the GPU.
+POAPI bool p_window_poll_event(P_Window *win, P_Event *ev); // Returns true while there are events to poll. Write event data to a pointer.
+
+POAPI void p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc);
+POAPI void p_audio_quit();
+POAPI void p_audio_write(const i16 *samples, usize count);
+
+/*
+ * The Vulkan Module is platform specific
+ */
+
+#ifdef P_MODULE_VULKAN
+#include <vulkan/vulkan.h>
+POAPI char** p_vulkan_get_extensions();
+POAPI bool p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface);
+#endif
+
+/*
+ * The Remaining Modules are PLATFORM INDEPENDENT!
+ */
+
+#ifdef P_MODULE_STRING
+/* --- Start of p_string.h --- */
+typedef struct {
+ const char *cstr;
+ u32 len;
+} P_StringView;
+
+typedef struct {
+ P_StringView sv;
+} P_StringBuilder;
+
+/* Classic C string functions */
+PODEF char* p_find_char(char *buf, char needle);
+PODEF bool p_strcmp(const char *a, const char *b);
+PODEF int p_strlen(const char *a);
+PODEF int p_strtoi(const char *str);
+PODEF char* p_strtok(const char *str, char c);
+
+/* String views */
+PODEF P_StringView p_strview(const char *cstr);
+PODEF void p_strview_chop_left(P_StringView *sv, u32 n);
+PODEF void p_strview_chop_right(P_StringView *sv, u32 n);
+PODEF P_StringView p_strview_chop_delim(P_StringView *sv, char delim);
+PODEF P_StringView p_strview_chop_type(P_StringView *sv, int(*istype)(int));
+PODEF void p_strview_trim_left(P_StringView *sv);
+PODEF void p_strview_trim_right(P_StringView *sv);
+PODEF void p_strview_trim(P_StringView *sv);
+
+/* Classification */
+PODEF int p_is_space(int c);
+PODEF int p_is_digit(int c);
+PODEF int p_is_alpha(int c);
+PODEF int p_is_alnum(int c);
+PODEF int p_is_upper(int c);
+PODEF int p_is_lower(int c);
+PODEF int p_is_hex(int c);
+
+/* Transformation */
+PODEF int p_to_lower(int c);
+PODEF int p_to_upper(int c);
+/* --- End of p_string.h --- */
+#endif
+
+#ifdef P_MODULE_MATH
+/* --- Start of p_math.h --- */
+typedef struct {int x, y; } Vec2i;
+typedef struct {float x, y; } Vec2f;
+typedef struct {float x, y, z; } Vec3f;
+typedef struct { float m[16];} P_Mat4; // column-major: m[col * 4 + row]
+PODEF int p_ceil(float x);
+PODEF float p_cosf(float x);
+PODEF float p_sinf(float x);
+
+PODEF Vec2f p_vec2f(float, float);
+PODEF Vec2f p_vec2f_add(Vec2f, Vec2f);
+PODEF float p_vec2f_cross(Vec2f, Vec2f);
+PODEF float p_vec2f_dot(Vec2f, Vec2f);
+PODEF Vec2f p_vec2f_mult(Vec2f a, float b);
+PODEF Vec2f p_vec2f_sub(Vec2f, Vec2f);
+PODEF Vec2i p_vec2i(float, float);
+PODEF Vec2i p_vec2i_add(Vec2i, Vec2i);
+PODEF float p_vec2i_cross(Vec2i, Vec2i);
+PODEF float p_vec2i_dot(Vec2i, Vec2i);
+PODEF Vec2i p_vec2i_mult(Vec2i a, float b);
+PODEF Vec2i p_vec2i_sub(Vec2i, Vec2i);
+
+PODEF Vec3f p_vec3f(float, float, float);
+
+PODEF P_Mat4 p_mat4_identity(void);
+PODEF P_Mat4 p_mat4_mul(P_Mat4 a, P_Mat4 b);
+PODEF P_Mat4 p_mat4_translate(Vec3f v);
+PODEF P_Mat4 p_mat4_translate_by(P_Mat4 m, Vec3f v);
+PODEF P_Mat4 p_mat4_rotate_x(float rad);
+PODEF P_Mat4 p_mat4_rotate_x_by(P_Mat4 m, float rad);
+PODEF P_Mat4 p_mat4_rotate_y(float rad);
+PODEF P_Mat4 p_mat4_rotate_y_by(P_Mat4 m, float rad);
+PODEF P_Mat4 p_mat4_rotate_z(float rad);
+PODEF P_Mat4 p_mat4_perspective(float fov_rad, float aspect, float near_z, float far_z);
+/* --- End of p_math.h --- */
+#endif
+
+#ifdef P_MODULE_ALLOC
+/* --- Start of p_allocators.h --- */
+typedef struct Arena {
+ unsigned char *buf;
+ usize buf_len;
+ usize curr_offset;
+ usize prev_offset;
+} Arena;
+
+PODEF void p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length);
+PODEF void* p_arena_alloc_align(Arena *a, usize s, usize align);
+PODEF void* p_arena_alloc(Arena *a, usize s);
+PODEF void* p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align);
+PODEF void* p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size);
+PODEF void p_arena_free_all(Arena *a);
+PODEF void p_arena_destroy(Arena* a);
+
+typedef struct { u8 padding; } Stack_Allocation_Header;
+typedef struct Stack {
+ unsigned char *buf;
+ usize buf_len;
+ usize offset;
+} Stack;
+
+PODEF void p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length);
+PODEF usize calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size);
+PODEF void* p_stack_alloc(Stack *s, usize len, usize alignment);
+PODEF void p_stack_free(Stack *s, void *ptr);
+PODEF void p_stack_free_all(Stack* s);
+PODEF void p_stack_destroy(Stack* s);
+
+typedef struct Pool_Free_Node Pool_Free_Node;
+
+typedef struct Pool {
+ unsigned char *buf;
+ usize chunk_size;
+ usize pool_size;
+ Pool_Free_Node *head;
+} Pool;
+
+struct Pool_Free_Node { struct Pool_Free_Node *next; };
+PODEF void p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align);
+PODEF void* p_pool_alloc(Pool *p);
+PODEF void p_pool_free(Pool *p, void *ptr);
+PODEF void p_pool_free_all(Pool *p);
+PODEF void p_pool_destroy(Pool *p);
+/* --- End of p_allocators.h --- */
+#endif
+
+#endif /* _PODIUM_H_ */
+
+#ifdef PODIUM_IMPLEMENTATION
+#undef PODIUM_IMPLEMENTATION
+
+#if defined(PODIUM_SDL)
+/* #include "p_platform_sdl.c" */
+#elif defined(PODIUM_WIN32)
+/* --- Start of p_platform_win32.c --- */
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <mmsystem.h>
+#include <xinput.h> /* gamepad support */
+
+typedef struct {
+ HWAVEOUT wave_out;
+ WAVEHDR wave_header;
+} P_Win32Ctx;
+
+struct P_Window_Impl {
+ HWND hwnd;
+ HDC hdc;
+ BITMAPINFO bitmap_info;
+ int width;
+ int height;
+ bool closed;
+};
+
+P_Win32Ctx p_ctx = {0};
+
+static inline P_KeyCode
+_win32_translate_vkey(WPARAM vk)
+{
+ switch (vk) {
+ case VK_LEFT: return P_KEY_LEFT;
+ case VK_RIGHT: return P_KEY_RIGHT;
+ case VK_UP: return P_KEY_UP;
+ case VK_DOWN: return P_KEY_DOWN;
+ case VK_SPACE: return P_KEY_SPACE;
+ case VK_ESCAPE: return P_KEY_ESCAPE;
+ case VK_RETURN: return P_KEY_ENTER;
+ case 'A': return P_KEY_A;
+ case 'B': return P_KEY_B;
+ case 'C': return P_KEY_C;
+ case 'D': return P_KEY_D;
+ case 'E': return P_KEY_E;
+ case 'F': return P_KEY_F;
+ case 'G': return P_KEY_G;
+ case 'H': return P_KEY_H;
+ case 'I': return P_KEY_I;
+ case 'J': return P_KEY_J;
+ case 'K': return P_KEY_K;
+ case 'L': return P_KEY_L;
+ case 'M': return P_KEY_M;
+ case 'N': return P_KEY_N;
+ case 'O': return P_KEY_O;
+ case 'P': return P_KEY_P;
+ case 'Q': return P_KEY_Q;
+ case 'R': return P_KEY_R;
+ case 'S': return P_KEY_S;
+ case 'T': return P_KEY_T;
+ case 'U': return P_KEY_U;
+ case 'V': return P_KEY_V;
+ case 'W': return P_KEY_W;
+ case 'X': return P_KEY_X;
+ case 'Y': return P_KEY_Y;
+ case 'Z': return P_KEY_Z;
+ default: return P_KEY_UNKNOWN;
+ }
+}
+
+POAPI u64
+p_get_time(void)
+{
+ LARGE_INTEGER count, freq;
+ QueryPerformanceCounter(&count);
+ QueryPerformanceFrequency(&freq);
+ return (u64)((count.QuadPart * 1000000000ULL) / freq.QuadPart);
+}
+
+POAPI void
+p_sleep_ns(i64 ns)
+{
+ /* windows sleep is millisecond-based........ */
+ Sleep((DWORD)(ns / 1000000));
+}
+
+POAPI void
+p_stdout(void *msg, usize bytes)
+{
+ HANDLE stdout_handle = GetStdHandle(STD_OUTPUT_HANDLE);
+ DWORD bytes_written;
+ WriteFile(stdout_handle, msg, bytes, &bytes_written, NULL);
+}
+
+POAPI bool
+p_file_exists(const char *path)
+{
+ DWORD attr = GetFileAttributesA(path);
+ return (attr != INVALID_FILE_ATTRIBUTES && !(attr & FILE_ATTRIBUTE_DIRECTORY));
+}
+
+POAPI usize
+p_file_size(const char *path)
+{
+ WIN32_FILE_ATTRIBUTE_DATA data;
+ if (GetFileAttributesExA(path, GetFileExInfoStandard, &data)) {
+ return data.nFileSizeLow;
+ }
+ return 0;
+}
+
+PODEF void
+p_file_load(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ HANDLE file = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
+ if (file != INVALID_HANDLE_VALUE) {
+ DWORD bytes_read;
+ ReadFile(file, buf_ptr, buf_size, &bytes_read, NULL);
+ CloseHandle(file);
+ }
+}
+
+PODEF void
+p_file_write(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ HANDLE file = CreateFileA(path, GENERIC_WRITE, 0, NULL,
+ CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (file != INVALID_HANDLE_VALUE) {
+ DWORD bytes_written;
+ WriteFile(file, buf_ptr, buf_size, &bytes_written, NULL);
+ CloseHandle(file);
+ }
+}
+
+static LRESULT CALLBACK
+_win32_wnd_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
+ P_Window *win = (P_Window*)GetWindowLongPtrA(hwnd, GWLP_USERDATA);
+ switch (msg) {
+ case WM_CLOSE:
+ /* Handled in poll_event; mark as closed */
+ if (win) win->closed = true;
+ return 0;
+ }
+ return DefWindowProcA(hwnd, msg, wparam, lparam);
+}
+
+POAPI bool
+p_window_open(P_Window *win, int width, int height, const char *title)
+{
+ HINSTANCE instance = GetModuleHandleA(NULL);
+
+ WNDCLASSA wc = {0};
+ wc.lpfnWndProc = _win32_wnd_proc;
+ wc.hInstance = instance;
+ wc.lpszClassName = "P_Window_Class";
+ wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+
+ RegisterClassA(&wc);
+
+ win->hwnd = CreateWindowExA(0, wc.lpszClassName, title,
+ WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+ CW_USEDEFAULT, CW_USEDEFAULT, width, height,
+ NULL, NULL, instance, NULL);
+
+ if (!win->hwnd) return false;
+
+ SetWindowLongPtrA(win->hwnd, GWLP_USERDATA, (LONG_PTR)win);
+ win->hdc = GetDC(win->hwnd);
+ win->width = width;
+ win->height = height;
+ win->closed = false;
+
+ return true;
+}
+
+POAPI void
+p_window_close(P_Window *win)
+{
+ if (!win) return;
+ if (win->hdc) ReleaseDC(win->hwnd, win->hdc);
+ if (win->hwnd) DestroyWindow(win->hwnd);
+ win->hdc = NULL;
+ win->hwnd = NULL;
+}
+
+POAPI bool
+p_window_is_open(P_Window *win)
+{
+ return win && win->hwnd != NULL;
+}
+
+POAPI void
+p_window_size(P_Window *win, int *window_width, int *window_height)
+{
+ if (!win) return;
+ RECT rect;
+ GetClientRect(win->hwnd, &rect);
+ *window_width = rect.right - rect.left;
+ *window_height = rect.bottom - rect.top;
+ win->width = *window_width;
+ win->height = *window_height;
+}
+
+POAPI void
+p_window_draw(P_Window *win, u32 *pixels, int width, int height)
+{
+ BITMAPINFO bmi = {0};
+ bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
+ bmi.bmiHeader.biWidth = width;
+ bmi.bmiHeader.biHeight = -height; /* top-down */
+ bmi.bmiHeader.biPlanes = 1;
+ bmi.bmiHeader.biBitCount = 32;
+ bmi.bmiHeader.biCompression = BI_RGB;
+
+ StretchDIBits(win->hdc,
+ 0, 0, win->width, win->height,
+ 0, 0, width, height,
+ pixels, &bmi, DIB_RGB_COLORS, SRCCOPY);
+}
+
+POAPI bool
+p_window_poll_event(P_Window *win, P_Event *ev)
+{
+ if (win->closed) {
+ win->closed = false;
+ ev->type = P_EVENT_WINDOW_CLOSE;
+ return true;
+ }
+
+ MSG msg;
+ while (PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE)) {
+ switch (msg.message) {
+
+ case WM_QUIT:
+ ev->type = P_EVENT_WINDOW_CLOSE;
+ return true;
+
+ /* Key press */
+ case WM_KEYDOWN:
+ case WM_SYSKEYDOWN:
+ ev->type = P_EVENT_KEY_DOWN;
+ ev->key.key = _win32_translate_vkey(msg.wParam);
+ return true;
+
+ /* Key release */
+ case WM_KEYUP:
+ case WM_SYSKEYUP:
+ ev->type = P_EVENT_KEY_UP;
+ ev->key.key = _win32_translate_vkey(msg.wParam);
+ return true;
+
+ /* Mouse movement */
+ case WM_MOUSEMOVE:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_MOVED;
+ ev->pointer.button = 0;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ /* Mouse buttons */
+ case WM_LBUTTONDOWN:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = 1; /* 1 = LMB, matching X11 convention */
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_LBUTTONUP:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = 1;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_RBUTTONDOWN:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = 3; /* 3 = RMB */
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_RBUTTONUP:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = 3;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_MBUTTONDOWN:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = 2; /* 2 = MMB */
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_MBUTTONUP:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = 2;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ /* Window resize */
+ case WM_SIZE:
+ ev->type = P_EVENT_WINDOW_RESIZE;
+ ev->resize.width = (u32)(msg.lParam & 0xFFFF);
+ ev->resize.height = (u32)((msg.lParam >> 16) & 0xFFFF);
+ win->width = ev->resize.width;
+ win->height = ev->resize.height;
+ return true;
+
+ default:
+ TranslateMessage(&msg);
+ DispatchMessageA(&msg);
+ break;
+ }
+ }
+
+ ev->type = P_EVENT_NONE;
+ return false;
+}
+
+
+POAPI void
+p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc)
+{
+ (void)name; (void)desc; /* WinMM doesn't use a stream name */
+
+ WAVEFORMATEX wfx = {0};
+ wfx.wFormatTag = WAVE_FORMAT_PCM;
+ wfx.nChannels = channels;
+ wfx.nSamplesPerSec = sample_rate;
+ wfx.wBitsPerSample = 16;
+ wfx.nBlockAlign = (wfx.nChannels * wfx.wBitsPerSample) / 8;
+ wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
+
+ if (waveOutOpen(&p_ctx.wave_out, WAVE_MAPPER, &wfx, 0, 0, CALLBACK_NULL) != MMSYSERR_NOERROR) {
+ exit(1);
+ }
+}
+
+POAPI void
+p_audio_quit()
+{
+ if (p_ctx.wave_out) {
+ waveOutReset(p_ctx.wave_out);
+ waveOutClose(p_ctx.wave_out);
+ p_ctx.wave_out = NULL;
+ }
+}
+
+POAPI void
+p_audio_write(const i16 *samples, usize count)
+{
+ if (!p_ctx.wave_out) return;
+
+ WAVEHDR header = {0};
+ header.lpData = (LPSTR)samples;
+ header.dwBufferLength = (DWORD)(count * sizeof(i16));
+
+ waveOutPrepareHeader(p_ctx.wave_out, &header, sizeof(WAVEHDR));
+ waveOutWrite(p_ctx.wave_out, &header, sizeof(WAVEHDR));
+
+ /* wait for playback to finish (synchronous, mirrors pa_simple_drain) */
+ while (!(header.dwFlags & WHDR_DONE)) Sleep(1);
+
+ waveOutUnprepareHeader(p_ctx.wave_out, &header, sizeof(WAVEHDR));
+}
+
+#ifdef P_MODULE_VULKAN
+
+#ifndef VK_USE_PLATFORM_WIN32_KHR
+#define VK_USE_PLATFORM_WIN32_KHR
+#endif
+#include <vulkan/vulkan_win32.h>
+
+POAPI char**
+p_vulkan_get_extensions()
+{
+ char **darr = NULL;
+ p_darray_push(darr, "VK_KHR_surface");
+ p_darray_push(darr, "VK_KHR_win32_surface");
+ return darr;
+}
+
+POAPI bool
+p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface)
+{
+ if (!instance || !window || !window->hwnd || !out_surface) {
+ return false;
+ }
+
+ VkWin32SurfaceCreateInfoKHR create_info = {0};
+ create_info.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+ create_info.pNext = NULL;
+ create_info.flags = 0;
+ create_info.hwnd = window->hwnd;
+ create_info.hinstance = GetModuleHandleA(NULL);
+
+ VkResult result = vkCreateWin32SurfaceKHR(instance, &create_info, allocator, out_surface);
+ return (result == VK_SUCCESS);
+}
+#endif
+/* --- End of p_platform_win32.c --- */
+#elif defined(PODIUM_LINUX)
+/* --- Start of p_platform_linux.c --- */
+/* linux */
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <errno.h>
+/* x11 */
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+/* pulse audio */
+#include <pulse/pulseaudio.h>
+#include <pulse/simple.h>
+#include <pulse/error.h>
+/* joystick */
+#include <linux/joystick.h>
+
+typedef struct {
+ pa_simple *audio_stream;
+} P_LinuxCtx;
+
+struct P_Window_Impl {
+ Display *display;
+ XImage *image;
+ Window window;
+ GC gc;
+ int screen;
+ int width;
+ int height;
+};
+
+P_LinuxCtx p_ctx = {0};
+
+static inline P_KeyCode
+_x11_translate_keycode(XEvent xev)
+{
+ static KeySym ks;
+ ks = XLookupKeysym(&xev.xkey, 0);
+ switch (ks) {
+ /* Arrow keys */
+ case XK_Left: return P_KEY_LEFT;
+ case XK_Right: return P_KEY_RIGHT;
+ case XK_Up: return P_KEY_UP;
+ case XK_Down: return P_KEY_DOWN;
+ /* Common keys */
+ case XK_space: return P_KEY_SPACE;
+ case XK_Escape: return P_KEY_ESCAPE;
+ case XK_Return: return P_KEY_ENTER;
+ case XK_A: case XK_a: return P_KEY_A;
+ case XK_B: case XK_b: return P_KEY_B;
+ case XK_C: case XK_c: return P_KEY_C;
+ case XK_D: case XK_d: return P_KEY_D;
+ case XK_E: case XK_e: return P_KEY_E;
+ case XK_F: case XK_f: return P_KEY_F;
+ case XK_G: case XK_g: return P_KEY_G;
+ case XK_H: case XK_h: return P_KEY_H;
+ case XK_I: case XK_i: return P_KEY_I;
+ case XK_J: case XK_j: return P_KEY_J;
+ case XK_K: case XK_k: return P_KEY_K;
+ case XK_L: case XK_l: return P_KEY_L;
+ case XK_M: case XK_m: return P_KEY_M;
+ case XK_N: case XK_n: return P_KEY_N;
+ case XK_O: case XK_o: return P_KEY_O;
+ case XK_P: case XK_p: return P_KEY_P;
+ case XK_Q: case XK_q: return P_KEY_Q;
+ case XK_R: case XK_r: return P_KEY_R;
+ case XK_S: case XK_s: return P_KEY_S;
+ case XK_T: case XK_t: return P_KEY_T;
+ case XK_U: case XK_u: return P_KEY_U;
+ case XK_V: case XK_v: return P_KEY_V;
+ case XK_W: case XK_w: return P_KEY_W;
+ case XK_X: case XK_x: return P_KEY_X;
+ case XK_Y: case XK_y: return P_KEY_Y;
+ case XK_Z: case XK_z: return P_KEY_Z;
+ default: return P_KEY_UNKNOWN;
+ }
+}
+
+POAPI u64
+p_get_time(void)
+{
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return NANOS_PER_SEC * ts.tv_sec + ts.tv_nsec;
+}
+
+POAPI void
+p_sleep_ns(i64 ns)
+{
+ struct timespec ts;
+ ts.tv_sec = ns / 1000000000L;
+ ts.tv_nsec = ns % 1000000000L;
+ clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
+}
+
+POAPI void
+p_stdout(void *msg, usize bytes)
+{
+ write(1, msg, bytes);
+}
+
+POAPI bool
+p_file_exists(const char *path)
+{
+ return (access(path, F_OK) == 0);
+}
+
+POAPI usize
+p_file_size(const char *path)
+{
+ struct stat st;
+ if (stat(path, &st) == 0) {
+ return st.st_size;
+ }
+ return 0;
+}
+
+PODEF void
+p_file_load(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ int fd = open(path, O_RDONLY);
+ if (fd >= 0) {
+ read(fd, buf_ptr, (size_t)buf_size);
+ close(fd);
+ }
+}
+
+PODEF void
+p_file_write(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ int fd = open(path, O_WRONLY | O_CREAT | O_APPEND, 0644);
+ if (fd >= 0) {
+ write(fd, buf_ptr, (size_t)buf_size);
+ close(fd);
+ }
+}
+
+POAPI bool
+p_window_open(P_Window *win, int width, int height, const char *title)
+{
+ win->width = width;
+ win->height = height;
+
+ XInitThreads();
+
+ win->display = XOpenDisplay(NULL);
+ if (win->display == NULL) {
+ PERROR("Cannot open display!");
+ return false;
+ }
+
+ int screen = DefaultScreen(win->display);
+ win->window = XCreateSimpleWindow(
+ win->display,
+ RootWindow(win->display, screen),
+ 0, 0, width, height,
+ 1,
+ BlackPixel(win->display, screen),
+ BlackPixel(win->display, screen)
+ );
+
+ win->screen = screen;
+
+ XStoreName(win->display, win->window, title);
+ XSelectInput(win->display, win->window,
+ KeyPressMask | KeyReleaseMask |
+ ButtonPressMask | ButtonReleaseMask |
+ PointerMotionMask | StructureNotifyMask);
+ XMapWindow(win->display, win->window);
+
+ win->gc = DefaultGC(win->display, screen);
+
+ Atom wm_delete = XInternAtom(win->display, "WM_DELETE_WINDOW", False);
+ XSetWMProtocols(win->display, win->window, &wm_delete, 1);
+
+ return true;
+}
+
+POAPI void
+p_window_close(P_Window *win)
+{
+ if (!win) return;
+
+ if (win->image) {
+ // XDestroyImage(win->image);
+ win->image = NULL;
+ }
+
+ if (win->display) {
+ Display *dpy = win->display;
+ Window w = win->window;
+ win->display = NULL;
+ win->window = 0;
+
+ if (w) {
+ XDestroyWindow(dpy, w);
+ }
+ XSync(dpy, False);
+ }
+}
+
+POAPI bool
+p_window_is_open(P_Window *win)
+{
+ return win && win->display != NULL;
+}
+
+POAPI void
+p_window_size(P_Window *win, int *window_width, int *window_height)
+{
+ if (!win) return;
+
+ XWindowAttributes attr;
+ XGetWindowAttributes(win->display, win->window, &attr);
+ *window_width = attr.width;
+ *window_height = attr.height;
+
+ win->width = attr.width;
+ win->height = attr.height;
+}
+
+POAPI void
+p_window_draw(P_Window *win, u32 *pixels, int width, int height)
+{
+ int screen = win->screen;
+
+ win->image = XCreateImage(
+ win->display,
+ DefaultVisual(win->display, screen),
+ DefaultDepth(win->display, screen),
+ ZPixmap,
+ 0,
+ (char*)pixels,
+ width,
+ height,
+ 32,
+ width * 4
+ );
+
+ int window_width, window_height;
+ p_window_size(win, &window_width, &window_height);
+
+ XPutImage(
+ win->display,
+ win->window,
+ win->gc,
+ win->image,
+ 0, 0,
+ 0, 0,
+ win->width,
+ win->height);
+
+ XFlush(win->display);
+}
+
+POAPI bool
+p_window_poll_event(P_Window *win, P_Event *ev)
+{
+ if (XPending(win->display)) {
+ static XEvent xev;
+ XNextEvent(win->display, &xev);
+
+ switch (xev.type) {
+
+ case KeyPress:
+ ev->type = P_EVENT_KEY_DOWN;
+ ev->key.key = _x11_translate_keycode(xev);
+ return true;
+
+ case KeyRelease:
+ ev->type = P_EVENT_KEY_UP;
+ ev->key.key = _x11_translate_keycode(xev);
+ return true;
+
+ case ConfigureNotify:
+ ev->type = P_EVENT_WINDOW_RESIZE;
+ ev->resize.width = xev.xconfigure.width;
+ ev->resize.height = xev.xconfigure.height;
+ return true;
+
+ case ClientMessage:
+ if ((Atom)xev.xclient.data.l[0] ==
+ XInternAtom(win->display, "WM_DELETE_WINDOW", False)) {
+ ev->type = P_EVENT_WINDOW_CLOSE;
+ return true;
+ }
+ break;
+
+ case MotionNotify:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_MOVED;
+ ev->pointer.button = 0;
+ ev->pointer.x = xev.xmotion.x;
+ ev->pointer.y = xev.xmotion.y;
+ return true;
+
+ case ButtonPress:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = xev.xbutton.button; /* 1=LMB, 2=MMB, 3=RMB */
+ ev->pointer.x = xev.xbutton.x;
+ ev->pointer.y = xev.xbutton.y;
+ return true;
+
+ case ButtonRelease:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = xev.xbutton.button;
+ ev->pointer.x = xev.xbutton.x;
+ ev->pointer.y = xev.xbutton.y;
+ return true;
+ }
+ }
+
+ ev->type = P_EVENT_NONE;
+ return false;
+}
+
+POAPI void
+p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc)
+{
+ pa_sample_spec ss = {
+ .format = PA_SAMPLE_S16LE,
+ .rate = sample_rate,
+ .channels = channels,
+ };
+
+ int error;
+ p_ctx.audio_stream = pa_simple_new(
+ NULL,
+ name,
+ PA_STREAM_PLAYBACK,
+ NULL,
+ desc,
+ &ss,
+ NULL,
+ NULL,
+ &error
+ );
+
+ if (!p_ctx.audio_stream) {
+ PERROR("PulseAudio init failed: %s\n", pa_strerror(error));
+ exit(1);
+ }
+}
+
+POAPI void
+p_audio_quit()
+{
+ if (p_ctx.audio_stream) {
+ pa_simple_free(p_ctx.audio_stream);
+ p_ctx.audio_stream = NULL;
+ }
+}
+
+POAPI void
+p_audio_write(const i16 *samples, usize count)
+{
+ if (!p_ctx.audio_stream) return;
+
+ int error;
+ if (pa_simple_write(p_ctx.audio_stream, samples, count * sizeof(i16), &error) < 0) {
+ PERROR("PulseAudio write failed: %s\n", pa_strerror(error));
+ }
+
+ pa_simple_drain(p_ctx.audio_stream, &error);
+}
+
+#ifdef P_MODULE_VULKAN
+
+#ifndef VK_USE_PLATFORM_XLIB_KHR
+#define VK_USE_PLATFORM_XLIB_KHR
+#endif
+#include <vulkan/vulkan_xlib.h>
+
+POAPI char**
+p_vulkan_get_extensions()
+{
+ char **darr = NULL;
+ p_darray_push(darr, "VK_KHR_surface");
+ p_darray_push(darr, "VK_KHR_xcb_surface");
+ p_darray_push(darr, "VK_KHR_xlib_surface");
+ return darr;
+}
+
+POAPI bool
+p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface)
+{
+ if (!instance || !window || !window->display || !window->window || !out_surface) {
+ return false;
+ }
+
+ VkXlibSurfaceCreateInfoKHR create_info = {0};
+ create_info.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
+ create_info.pNext = NULL;
+ create_info.flags = 0;
+ create_info.dpy = window->display;
+ create_info.window = window->window;
+
+ VkResult result = vkCreateXlibSurfaceKHR(instance, &create_info, allocator, out_surface);
+
+ return (result == VK_SUCCESS);
+}
+#endif
+/* --- End of p_platform_linux.c --- */
+#endif /* linux */
+
+
+POAPI void* p_file_alloc(const char *path, unsigned long *buf_size) {
+ if (p_file_exists(path) == false) {
+ return NULL;
+ }
+
+ usize file_size = p_file_size(path);
+ *buf_size = file_size;
+
+ void *ptr = malloc(file_size);
+ if (ptr) {
+ p_file_load(path, ptr, file_size); // Load file to buffer.
+ }
+ return ptr;
+}
+
+
+/*
+ * Import Module Code
+ */
+
+#ifdef P_MODULE_STRING
+/* --- Start of p_string.c --- */
+PODEF char*
+p_find_char(char *buf, char needle)
+{
+ while (buf && *buf != needle) buf++;
+ return buf;
+}
+
+PODEF bool
+p_strcmp(const char *a, const char *b)
+{
+ if (p_strlen(a) != p_strlen(b))
+ return false;
+
+ while (a && b && *a != '\0') {
+ if (*(a++) != *(b++)) return false;
+ }
+
+ return true;
+}
+
+PODEF int
+p_strlen(const char *a)
+{
+ int i = 0;
+ while (*a++ != '\0') i++;
+ return i;
+}
+
+PODEF int
+p_strtoi(const char *str)
+{
+ int res = 0;
+
+ while (*str) {
+ if (*str >= '0' && *str <= '9') {
+ res = res * 10 + (*str - '0');
+ } else {
+ return res;
+ }
+ str++;
+ }
+
+ return res;
+}
+
+PODEF char*
+p_strtok(const char *str, char c)
+{
+ while (*str != c && *str++ != '\0');
+ return (*str == c) ? (char*) ++str : 0;
+}
+
+PODEF P_StringView
+p_strview(const char *cstr)
+{
+ P_StringView sv = {0};
+ sv.cstr = cstr;
+ sv.len = p_strlen(cstr);
+ return sv;
+}
+
+PODEF void
+p_strview_chop_left(P_StringView *sv, u32 n)
+{
+ if (n > sv->len) n = sv->len;
+ sv->cstr += n;
+ sv->len -= n;
+}
+
+PODEF void
+p_strview_chop_right(P_StringView *sv, u32 n)
+{
+ if (n > sv->len) n = sv->len;
+ sv->len -= n;
+}
+
+PODEF P_StringView
+p_strview_chop_delim(P_StringView *sv, char delim)
+{
+ u32 i = 0;
+ while (i < sv->len && sv->cstr[i] != delim) {
+ i++;
+ }
+
+ P_StringView tok;
+ if (i < sv->len) {
+ tok.cstr = sv->cstr;
+ tok.len = i;
+ p_strview_chop_left(sv, i + 1);
+ return tok;
+ }
+
+ tok = *sv;
+ p_strview_chop_left(sv, sv->len);
+ return tok;
+}
+
+PODEF P_StringView
+p_strview_chop_type(P_StringView *sv, int(*istype)(int))
+{
+ u32 i = 0;
+ while (i < sv->len && istype(sv->cstr[i])) {
+ i++;
+ }
+
+ P_StringView tok;
+ if (i < sv->len) {
+ tok.cstr = sv->cstr;
+ tok.len = i;
+ p_strview_chop_left(sv, i + 1);
+ return tok;
+ }
+
+ tok = *sv;
+ p_strview_chop_left(sv, sv->len);
+ return tok;
+}
+
+
+PODEF void
+p_strview_trim_left(P_StringView *sv)
+{
+ while (sv->len > 0 && p_is_space(sv->cstr[0])) {
+ p_strview_chop_left(sv, 1);
+ }
+}
+
+PODEF void
+p_strview_trim_right(P_StringView *sv)
+{
+ while (sv->len > 0 && p_is_space(sv->cstr[sv->len-1])) {
+ p_strview_chop_right(sv, 1);
+ }
+}
+
+PODEF void
+p_strview_trim(P_StringView *sv)
+{
+ p_strview_trim_left(sv);
+ p_strview_trim_right(sv);
+}
+
+PODEF int
+p_is_space(int c)
+{
+ /* Checks for: space, form feed (\f), line feed (\n),
+ * carriage return (\r), horizontal tab (\t), vertical tab (\v) */
+ return (c == ' ' || (c >= '\t' && c <= '\r'));
+}
+
+PODEF int
+p_is_digit(int c)
+{
+ return (c >= '0' && c <= '9');
+}
+
+PODEF int
+p_is_alpha(int c)
+{
+ return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
+}
+
+PODEF int
+p_is_alnum(int c)
+{
+ return (p_is_alpha(c) || p_is_digit(c));
+}
+
+PODEF int
+p_is_hex(int c)
+{
+ return (p_is_digit(c) ||
+ (c >= 'a' && c <= 'f') ||
+ (c >= 'A' && c <= 'F'));
+}
+
+PODEF int
+p_is_upper(int c)
+{
+ return (c >= 'A' && c <= 'Z');
+}
+
+PODEF int
+p_is_lower(int c)
+{
+ return (c >= 'a' && c <= 'z');
+}
+
+PODEF int
+p_to_lower(int c)
+{
+ if (p_is_upper(c)) return (c + ('a' - 'A'));
+ return c;
+}
+
+PODEF int
+p_to_upper(int c)
+{
+ if (p_is_lower(c)) return (c - ('a' - 'A'));
+ return c;
+}
+/* --- End of p_string.c --- */
+#endif
+
+#ifdef P_MODULE_MATH
+/* --- Start of p_math.c --- */
+PODEF
+int p_ceil(float x)
+{
+ int base = (int) x;
+ return (x > base) ? base + 1 : base;
+}
+
+PODEF float
+p_cosf(float x)
+{
+ x += 1.57079632679f;
+
+ while (x > P_PI) x -= P_PI2;
+ while (x < -P_PI) x += P_PI2;
+
+ const float B = 4.0f / P_PI;
+ const float C = -4.0f / P_PI_POW2;
+
+ float y = B * x + C * x * (x < 0 ? -x : x);
+
+ const float P = 0.225f;
+ y = P * (y * (y < 0 ? -y : y) - y) + y;
+
+ return y;
+}
+
+PODEF float
+p_sinf(float x)
+{
+ while (x > P_PI) x -= P_PI2;
+ while (x < -P_PI) x += P_PI2;
+
+ const float B = 4.0f / P_PI;
+ const float C = -4.0f / (P_PI_POW2);
+
+ float y = B * x + C * x * (x < 0 ? -x : x);
+
+ const float P = 0.225f;
+ y = P * (y * (y < 0 ? -y : y) - y) + y;
+
+ return y;
+}
+
+PODEF Vec2f
+p_vec2f(float x, float y)
+{
+ return (Vec2f) { .x = x, .y = y };
+}
+
+PODEF Vec2f
+p_vec2f_add(Vec2f a, Vec2f b)
+{
+ return (Vec2f) {
+ .x = a.x + b.x,
+ .y = a.y + b.y,
+ };
+}
+
+PODEF float
+p_vec2f_cross(Vec2f a, Vec2f b)
+{
+ // axby − aybx
+ return a.x * b.y - a.y * b.x;
+}
+
+PODEF float
+p_vec2f_dot(Vec2f a, Vec2f b)
+{
+ // a · b = ax × bx + ay × by
+ return a.x * b.x + a.y * b.y;
+}
+
+PODEF Vec2f
+p_vec2f_mult(Vec2f a, float b)
+{
+ return (Vec2f) {
+ .x = a.x * b,
+ .y = a.y * b,
+ };
+}
+
+PODEF Vec2f
+p_vec2f_sub(Vec2f a, Vec2f b)
+{
+ return (Vec2f) {
+ .x = a.x - b.x,
+ .y = a.y - b.y,
+ };
+}
+
+PODEF Vec2i
+p_vec2i(float x, float y)
+{
+ return (Vec2i) { .x = x, .y = y };
+}
+
+PODEF Vec2i
+p_vec2i_add(Vec2i a, Vec2i b)
+{
+ return (Vec2i) {
+ .x = a.x + b.x,
+ .y = a.y + b.y,
+ };
+}
+
+PODEF float
+p_vec2i_cross(Vec2i a, Vec2i b)
+{
+ // axby − aybx
+ return a.x * b.y - a.y * b.x;
+}
+
+PODEF float
+p_vec2i_dot(Vec2i a, Vec2i b)
+{
+ // a · b = ax × bx + ay × by
+ return a.x * b.x + a.y * b.y;
+}
+
+PODEF Vec2i
+p_vec2i_mult(Vec2i a, float b)
+{
+ return (Vec2i) {
+ .x = a.x * b,
+ .y = a.y * b,
+ };
+}
+
+PODEF Vec2i
+p_vec2i_sub(Vec2i a, Vec2i b)
+{
+ return (Vec2i) {
+ .x = a.x - b.x,
+ .y = a.y - b.y,
+ };
+}
+
+PODEF Vec3f
+p_vec3f(float x, float y, float z)
+{
+ return (Vec3f) { .x = x, .y = y, .z = z };
+}
+
+PODEF P_Mat4
+p_mat4_identity(void)
+{
+ P_Mat4 res = {0};
+ res.m[0] = 1.0f;
+ res.m[5] = 1.0f;
+ res.m[10] = 1.0f;
+ res.m[15] = 1.0f;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_mul(P_Mat4 a, P_Mat4 b)
+{
+ P_Mat4 res = {0};
+ for (int col = 0; col < 4; ++col) {
+ for (int row = 0; row < 4; ++row) {
+ float sum = 0.0f;
+ for (int k = 0; k < 4; ++k) {
+ sum += a.m[k * 4 + row] * b.m[col * 4 + k];
+ }
+ res.m[col * 4 + row] = sum;
+ }
+ }
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_translate(Vec3f v)
+{
+ P_Mat4 res = p_mat4_identity();
+ res.m[12] = v.x;
+ res.m[13] = v.y;
+ res.m[14] = v.z;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_translate_by(P_Mat4 m, Vec3f v)
+{
+ P_Mat4 res = m;
+ res.m[12] = m.m[0] * v.x + m.m[4] * v.y + m.m[8] * v.z + m.m[12];
+ res.m[13] = m.m[1] * v.x + m.m[5] * v.y + m.m[9] * v.z + m.m[13];
+ res.m[14] = m.m[2] * v.x + m.m[6] * v.y + m.m[10] * v.z + m.m[14];
+ res.m[15] = m.m[3] * v.x + m.m[7] * v.y + m.m[11] * v.z + m.m[15];
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_rotate_x(float rad)
+{
+ P_Mat4 res = p_mat4_identity();
+ float c = p_cosf(rad);
+ float s = p_sinf(rad);
+ res.m[5] = c;
+ res.m[6] = s;
+ res.m[9] = -s;
+ res.m[10] = c;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_rotate_x_by(P_Mat4 m, float rad)
+{
+ return p_mat4_mul(m, p_mat4_rotate_x(rad));
+}
+
+PODEF P_Mat4
+p_mat4_rotate_y(float rad)
+{
+ P_Mat4 res = p_mat4_identity();
+ float c = p_cosf(rad);
+ float s = p_sinf(rad);
+ res.m[0] = c;
+ res.m[2] = -s;
+ res.m[8] = s;
+ res.m[10] = c;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_rotate_y_by(P_Mat4 m, float rad)
+{
+ return p_mat4_mul(m, p_mat4_rotate_y(rad));
+}
+
+PODEF P_Mat4
+p_mat4_rotate_z(float rad)
+{
+ P_Mat4 res = p_mat4_identity();
+ float c = p_cosf(rad);
+ float s = p_sinf(rad);
+ res.m[0] = c;
+ res.m[1] = s;
+ res.m[4] = -s;
+ res.m[5] = c;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_perspective(float fov_rad, float aspect, float near_z, float far_z)
+{
+ P_Mat4 res = {0};
+ float tan_half_fov = p_sinf(fov_rad * 0.5f) / p_cosf(fov_rad * 0.5f);
+
+ res.m[0] = 1.0f / (aspect * tan_half_fov);
+ res.m[5] = 1.0f / tan_half_fov;
+ res.m[10] = far_z / (near_z - far_z);
+ res.m[11] = -1.0f;
+ res.m[14] = (near_z * far_z) / (near_z - far_z);
+ return res;
+}
+/* --- End of p_math.c --- */
+#endif
+
+#ifdef P_MODULE_ALLOC
+/* --- Start of p_allocators.c --- */
+PODEF bool
+is_power_of_two(uintptr x) {
+ return (x & (x-1)) == 0;
+}
+
+PODEF uintptr
+align_forward(uintptr ptr, usize align)
+{
+ uintptr p, a, remainder;
+ assert(is_power_of_two(align));
+
+ p = ptr;
+ a = (uintptr)align;
+ remainder = p & (a-1);
+
+ return (remainder != 0) ? p + a - remainder : p;
+}
+
+PODEF void
+p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length)
+{
+ a->buf = (unsigned char *)backing_buffer;
+ a->buf_len = backing_buffer_length;
+ a->curr_offset = 0;
+ a->prev_offset = 0;
+}
+
+PODEF void*
+p_arena_alloc_align(Arena *a, usize s, usize align)
+{
+
+ // Align 'curr_offset' forward to the specified alignment
+ uintptr curr_ptr = (uintptr)a->buf + (uintptr)a->curr_offset;
+ uintptr offset = align_forward(curr_ptr, align);
+ offset -= (uintptr)a->buf; // Change to relative offset
+
+ // Check to see if the backing memory has space left
+ if (offset+s <= a->buf_len) {
+ void *ptr = &a->buf[offset];
+ a->prev_offset = offset;
+ a->curr_offset = offset+s;
+
+ memset(ptr, 0, s);
+ return ptr;
+ }
+
+ return NULL;
+}
+
+PODEF void*
+p_arena_alloc(Arena *a, usize s) {
+ return p_arena_alloc_align(a, s, DEFAULT_ALIGNMENT);
+}
+
+PODEF void*
+p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align)
+{
+ assert(is_power_of_two(align));
+ unsigned char *old_mem = (unsigned char *)old_memory;
+
+ if (old_mem == NULL || old_size == 0) {
+ return p_arena_alloc_align(a, new_size, align);
+ } else if (a->buf <= old_mem && old_mem < a->buf+a->buf_len) {
+ if (a->buf+a->prev_offset == old_mem) {
+ a->curr_offset = a->prev_offset + new_size;
+ if (new_size > old_size) {
+ // Zero the new memory by default
+ memset(&a->buf[a->curr_offset], 0, new_size-old_size);
+ }
+ return old_memory;
+ } else {
+ void *new_memory = p_arena_alloc_align(a, new_size, align);
+ size_t copy_size = old_size < new_size ? old_size : new_size;
+ memmove(new_memory, old_memory, copy_size);
+ return new_memory;
+ }
+
+ } else {
+ assert(0 && "Memory is out of bounds of the buffer in this arena");
+ return NULL;
+ }
+}
+
+PODEF void*
+p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size)
+{
+ return p_arena_resize_align(a, old_memory, old_size, new_size, DEFAULT_ALIGNMENT);
+}
+
+PODEF void
+p_arena_free_all(Arena *a)
+{
+ a->curr_offset = 0;
+ a->prev_offset = 0;
+}
+
+PODEF void
+p_arena_destroy(Arena* a)
+{
+ a->buf_len = 0;
+ a->curr_offset = 0;
+ a->prev_offset = 0;
+}
+
+PODEF void
+p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length)
+{
+ s->buf = (unsigned char*) backing_buffer;
+ s->buf_len = backing_buffer_length;
+ s->offset = 0;
+}
+
+PODEF usize
+calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size)
+{
+ uintptr p, a, modulo, padding, needed_space;
+
+ assert(is_power_of_two(alignment));
+
+ p = ptr;
+ a = alignment;
+ modulo = p & (a-1); // (p % a) as it assumes alignment is a power of two
+
+ padding = 0;
+ needed_space = 0;
+
+ if (modulo != 0) { // Same logic as 'align_forward'
+ padding = a - modulo;
+ }
+
+ needed_space = (uintptr)header_size;
+
+ if (padding < needed_space) {
+ needed_space -= padding;
+
+ if ((needed_space & (a-1)) != 0) {
+ padding += a * (1+(needed_space/a));
+ } else {
+ padding += a * (needed_space/a);
+ }
+ }
+
+ return (usize)padding;
+}
+
+PODEF void*
+p_stack_alloc(Stack *s, usize len, usize alignment)
+{
+ uintptr curr_addr, next_addr;
+ usize padding;
+ Stack_Allocation_Header *header;
+
+ assert(is_power_of_two(alignment));
+
+ if (alignment > 128) {
+ // As the padding is 8 bits (1 byte), the largest alignment that can
+ // be used is 128 bytes
+ alignment = 128;
+ }
+
+ curr_addr = (uintptr)s->buf + (uintptr)s->offset;
+ padding = calc_padding_with_header(curr_addr, (uintptr)alignment, sizeof(Stack_Allocation_Header));
+ if (s->offset + padding + len > s->buf_len) {
+ // Stack allocator is out of memory
+ return NULL;
+ }
+ s->offset += padding;
+
+ next_addr = curr_addr + (uintptr)padding;
+ header = (Stack_Allocation_Header *)(next_addr - sizeof(Stack_Allocation_Header));
+ header->padding = (u8)padding;
+
+ s->offset += len;
+
+ return memset((void *)next_addr, 0, len);
+}
+
+PODEF void
+p_stack_free(Stack *s, void *ptr)
+{
+ if (ptr != NULL) {
+ uintptr start, end, curr_addr;
+ Stack_Allocation_Header *header;
+ usize prev_offset;
+
+ start = (uintptr)s->buf;
+ end = start + (uintptr)s->buf_len;
+ curr_addr = (uintptr)ptr;
+
+ if (!(start <= curr_addr && curr_addr < end)) {
+ assert(0 && "Out of bounds memory address passed to stack allocator (free)");
+ return;
+ }
+
+ if (curr_addr >= start+(uintptr)s->offset) {
+ // Allow double frees
+ return;
+ }
+
+ header = (Stack_Allocation_Header *)(curr_addr - sizeof(Stack_Allocation_Header));
+ prev_offset = (usize)(curr_addr - (uintptr)header->padding - start);
+
+ s->offset = prev_offset;
+ }
+}
+
+PODEF void
+p_stack_free_all(Stack* s)
+{
+ s->offset = 0;
+}
+
+PODEF void
+p_stack_destroy(Stack* s)
+{
+ s->buf = 0;
+ s->buf_len = 0;
+ s->offset = 0;
+}
+
+PODEF void
+p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align)
+{
+ /* align start */
+ uintptr start = (uintptr) buf;
+ uintptr aligned = align_forward(start, chunk_align);
+ buf_len -= (aligned - start);
+
+ /* align chunk usize */
+ chunk_size = (usize) align_forward(chunk_size, chunk_align);
+
+ assert(chunk_size >= sizeof(Pool_Free_Node) && "Chunk usize is too small");
+ assert(buf_len >= chunk_size && "Backing buffer length is smaller than the chunk size");
+
+ p->buf = (unsigned char *) buf;
+ p->pool_size = buf_len;
+ p->chunk_size = chunk_size;
+ p->head = NULL;
+
+ p_pool_free_all(p);
+}
+
+PODEF void*
+p_pool_alloc(Pool *p)
+{
+ Pool_Free_Node *node = p->head;
+
+ assert(node != NULL && "Pool allocator has no free memory");
+
+ p->head = p->head->next;
+
+ return memset(node, 0 , p->chunk_size);
+}
+
+PODEF void
+p_pool_free(Pool *p, void *ptr)
+{
+ Pool_Free_Node *node;
+
+ void *start = p->buf;
+ void *end = &p->buf[p->pool_size];
+
+ if (ptr == NULL) {
+ return;
+ }
+
+ if (!(start <= ptr && ptr < end)) {
+ assert(0 && "Memory is out of bounds of the buffer in this pool");
+ return;
+ }
+
+ node = (Pool_Free_Node *)ptr;
+ node->next = p->head;
+ p->head = node;
+}
+
+PODEF void
+p_pool_free_all(Pool *p)
+{
+ usize chunk_count = p->pool_size / p->chunk_size;
+ usize i;
+
+ for (i = 0; i < chunk_count; i++) {
+ void *ptr = &p->buf[i * p->chunk_size];
+ Pool_Free_Node *node = (Pool_Free_Node *)ptr;
+
+ // Push free node onto thte free list
+ node->next = p->head;
+ p->head = node;
+ }
+}
+
+PODEF void
+p_pool_destroy(Pool *p)
+{
+ p->buf = NULL;
+ p->pool_size = 0;
+ p->chunk_size = 0;
+ p->head = NULL;
+}
+
+/* --- End of p_allocators.c --- */
+#endif
+
+#define P_MAX_PRINTF_SIZE 1024
+PODEF void
+p_log_printf(P_Log_Level level, const char* src, ...)
+{
+ static char out_message[P_MAX_PRINTF_SIZE];
+ static u32 offset = P_PREFIX_LEN + 1;
+
+ memcpy(out_message, p_prefix[level], P_PREFIX_LEN); /* prefixes have a fixed len */
+ out_message[P_PREFIX_LEN] = ' '; /* write space */
+
+ __builtin_va_list arg_ptr;
+ va_start(arg_ptr, src);
+ int len = vsnprintf(out_message+offset, P_MAX_PRINTF_SIZE-offset, src, arg_ptr); // append message
+ va_end(arg_ptr);
+
+ if (len < 0) len = 0;
+ usize total_len = offset + len;
+ if (total_len > P_MAX_PRINTF_SIZE) {
+ total_len = P_MAX_PRINTF_SIZE;
+ }
+
+ p_stdout(out_message, total_len);
+ p_stdout("\n", 1);
+}
+
+#endif // PODIUM_IMPLEMENTATION
diff --git a/Podium/podium_header.h b/Podium/podium_header.h new file mode 100644 index 0000000..6407f62 --- /dev/null +++ b/Podium/podium_header.h @@ -0,0 +1,258 @@ +/* =========================================================================== + * PODIUM - Kitchen Sink - Copyright (c) 2026 Vasco Alves + * --------------------------------------------------------------------------- + * To stand on the shoulders of giants... Giants must stand still!" + * --------------------------------------------------------------------------- + * PREFIX: P_ (types) or p_ (functions & variables) + * --------------------------------------------------------------------------- + * COMPILE TIME FLAGS + * ._________________________________________________________________________, + * | Name | Description | + * |-----------------|-------------------------------------------------------| + * | PODIUM_WIN32 | Used to explicitly compile for Windows | + * | PODIUM_LINUX | Used to explicitly compile for Linux and FreeBSD. | + * '-------------------------------------------------------------------------' + * MODULES + * ._________________________________________________________________________, + * | Name | Description | + * |-----------------|-------------------------------------------------------| + * | P_MODULE_VULKAN | Gives access to vulkan related utilities. | + * | P_MODULE_STRING | Include string manipulation utilities. | + * | P_MODULE_MATH | Trigonometry and linear algebra functions. | + * | P_MODULE_ALLOC | Memory allocators: Arena, Stack & Pool. | + * '-------------------------------------------------------------------------' + * =========================================================================== */ + +#ifndef _PODIUM_H_ +#define _PODIUM_H_ + +#define PODIUM_MAJOR "0" // needs more revisions and use to reach 1.0 status +#define PODIUM_MINOR "2" // vulkan module +#define PODIUM_PATCH "2" // gamepad + +#define POAPI static inline +#define PODEF static inline + +/* + * Auto-detect platforms. + */ + +/* Windows */ +#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__TOS_WIN__) + #ifndef PODIUM_WIN32 + #define PODIUM_WIN32 + #endif + #ifndef WIN32_LEAN_AND_MEAN + #define WIN32_LEAN_AND_MEAN + #endif +/* Apple */ +#elif defined(__APPLE__) || defined(__MACH__) + #include <TargetConditionals.h> + #ifndef PODIUM_APPLE + #define PODIUM_APPLE + #endif + #if TARGET_OS_IPHONE + #define PODIUM_IOS + #else + #define PODIUM_MACOS + #endif +/* Linux / BSD */ +#elif defined(__linux__) || defined(__FreeBSD__) + #ifndef PODIUM_LINUX + #define PODIUM_LINUX + #endif + #ifndef _POSIX_C_SOURCE + #define _POSIX_C_SOURCE 200112L + #endif +#endif + +#include <stdarg.h> +#include <stdint.h> +#include <stddef.h> +#include <string.h> /* memcpy */ +#include <stdio.h> /* vsnprintf */ + +/* + * NOTE: The <REPLACE> comments are used by the build + * script to know what includes to inline into the + * final single header file! + */ + +#include "p_types.h" // <REPLACE> +#include "p_log.h" // <REPLACE> +#include "p_ds.h" // <REPLACE> + +/* + * Main Platform Types (Keyboard, Events, Context, etc.) + */ + +typedef enum { + P_KEYMOD_ALT = 0, + P_KEYMOD_SHIFT, + P_KEYMOD_CTRL, + P_KEYMOD_CAPS, +} P_KeyMod; + +typedef enum { + P_KEY_UNKNOWN = 0, + P_KEY_UP, P_KEY_DOWN, P_KEY_LEFT, P_KEY_RIGHT, + P_KEY_SPACE, P_KEY_ESCAPE, P_KEY_ENTER, + P_KEY_A, P_KEY_B, P_KEY_C, P_KEY_D, P_KEY_E, P_KEY_F, P_KEY_G, P_KEY_H, P_KEY_I, + P_KEY_J, P_KEY_K, P_KEY_L, P_KEY_M, P_KEY_N, P_KEY_O, P_KEY_P, P_KEY_Q, P_KEY_R, + P_KEY_S, P_KEY_T, P_KEY_U, P_KEY_V, P_KEY_W, P_KEY_X, P_KEY_Y, P_KEY_Z, +} P_KeyCode; + +/* Platform event type */ +typedef enum { + P_EVENT_NONE = 0, + P_EVENT_KEY_DOWN, + P_EVENT_KEY_UP, + P_EVENT_WINDOW_CLOSE, + P_EVENT_WINDOW_RESIZE, + P_EVENT_POINTER, + P_EVENT_CONTROLLER_CONNECTED, + P_EVENT_CONTROLLER_DISCONNECTED, +} P_EvenType; + +typedef enum { + P_POINTER_MOVED = 0, + P_POINTER_PRESSED, + P_POINTER_RELEASED +} P_PointerState; + +typedef struct { + P_EvenType type; + union { + struct {P_KeyCode key; P_KeyMod mod; } key; + struct { u32 width, height; } resize; + struct { P_PointerState state; u32 button; u32 x, y; } pointer; + }; +} P_Event; + +/* + * Platform dependent functions to be implemented by each layer. + */ + +POAPI u64 p_get_time(void); // Get time in nanoseconds. +POAPI void p_sleep_ns(i64 ns); // Sleep for nanoseconds. + +POAPI void p_stdout(void *msg, usize bytes); // Print buffer to stdout. +PODEF void p_log_printf(P_Log_Level level, const char* src, ...); // Print buffer to stdout. + + +POAPI void* p_file_alloc(const char *path, unsigned long *buf_size); +POAPI bool p_file_exists(const char *path); // Check if file exists. +POAPI usize p_file_size(const char *path); // Check file size. +POAPI void p_file_load(const char *path, void *buf_ptr, unsigned long buf_size); // Load file to buffer. +PODEF void p_file_write(const char *path, void *buf_ptr, unsigned long buf_size); // Write buffer to file. + +typedef struct P_Window_Impl P_Window; +POAPI bool p_window_open(P_Window *win, int width, int height, const char *title); // Opens a window. Returns false on failure. +POAPI void p_window_close(P_Window *win); // Close window. +POAPI bool p_window_is_open(P_Window *win); // Check if window is open. +POAPI void p_window_size(P_Window *win, int *window_width, int *window_height); // Get window size. +POAPI void p_window_draw(P_Window *win, u32 *pixels, int width, int height); // Draw directly to the window's buffer. Normally much slower than using the GPU. +POAPI bool p_window_poll_event(P_Window *win, P_Event *ev); // Returns true while there are events to poll. Write event data to a pointer. + +POAPI void p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc); +POAPI void p_audio_quit(); +POAPI void p_audio_write(const i16 *samples, usize count); + +/* + * The Vulkan Module is platform specific + */ + +#ifdef P_MODULE_VULKAN +#include <vulkan/vulkan.h> +POAPI char** p_vulkan_get_extensions(); +POAPI bool p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface); +#endif + +/* + * The Remaining Modules are PLATFORM INDEPENDENT! + */ + +#ifdef P_MODULE_STRING +#include <p_string.h> // <REPLACE> +#endif + +#ifdef P_MODULE_MATH +#include <p_math.h> // <REPLACE> +#endif + +#ifdef P_MODULE_ALLOC +#include <p_allocators.h> // <REPLACE> +#endif + +#endif /* _PODIUM_H_ */ + +#ifdef PODIUM_IMPLEMENTATION +#undef PODIUM_IMPLEMENTATION + +#if defined(PODIUM_SDL) +/* #include "p_platform_sdl.c" */ +#elif defined(PODIUM_WIN32) +#include "p_platform_win32.c" // <REPLACE> +#elif defined(PODIUM_LINUX) +#include "p_platform_linux.c" // <REPLACE> +#endif /* linux */ + + +POAPI void* p_file_alloc(const char *path, unsigned long *buf_size) { + if (p_file_exists(path) == false) { + return NULL; + } + + usize file_size = p_file_size(path); + *buf_size = file_size; + + void *ptr = malloc(file_size); + if (ptr) { + p_file_load(path, ptr, file_size); // Load file to buffer. + } + return ptr; +} + + +/* + * Import Module Code + */ + +#ifdef P_MODULE_STRING +#include <p_string.c> // <REPLACE> +#endif + +#ifdef P_MODULE_MATH +#include <p_math.c> // <REPLACE> +#endif + +#ifdef P_MODULE_ALLOC +#include <p_allocators.c> // <REPLACE> +#endif + +#define P_MAX_PRINTF_SIZE 1024 +PODEF void +p_log_printf(P_Log_Level level, const char* src, ...) +{ + static char out_message[P_MAX_PRINTF_SIZE]; + static u32 offset = P_PREFIX_LEN + 1; + + memcpy(out_message, p_prefix[level], P_PREFIX_LEN); /* prefixes have a fixed len */ + out_message[P_PREFIX_LEN] = ' '; /* write space */ + + __builtin_va_list arg_ptr; + va_start(arg_ptr, src); + int len = vsnprintf(out_message+offset, P_MAX_PRINTF_SIZE-offset, src, arg_ptr); // append message + va_end(arg_ptr); + + if (len < 0) len = 0; + usize total_len = offset + len; + if (total_len > P_MAX_PRINTF_SIZE) { + total_len = P_MAX_PRINTF_SIZE; + } + + p_stdout(out_message, total_len); + p_stdout("\n", 1); +} + +#endif // PODIUM_IMPLEMENTATION diff --git a/Poof/poof.h b/Poof/poof.h new file mode 100644 index 0000000..55e18ef --- /dev/null +++ b/Poof/poof.h @@ -0,0 +1,875 @@ +/* =========================================================================== + * POOF - The Universal Build System - Copyright (c) 2026 Vasco Alves + * + * PREFIX: Poof_ (types) or poof_ (functions & variables) + * + * DESCRIPTION: + * Platform independent-ish build system! + * Performant, multi-threaded and mesmerizing. + * + * See LICENSE at the end of the file. + * =========================================================================== */ + +#ifndef _POOF_H_ +#define _POOF_H_ + +#define POOF_MAJOR 0 +#define POOF_MINOR 1 +#define POOF_PATCH 0 + +#include <stdint.h> +#include <stdbool.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <sys/stat.h> + +#if defined(_WIN32) + #include <windows.h> + #include <direct.h> + #include <io.h> +#else + #include <unistd.h> + #include <sys/wait.h> + #include <sys/types.h> + #include <dirent.h> + #include <errno.h> +#endif + +enum PoofTargetPlatform { + POOF_TARGET_HOST = 0, + POOF_TARGET_WIN32 = 1, + POOF_TARGET_LINUX = 1 << 1, + POOF_TARGET_MACOS = 1 << 2, +}; + +enum PoofCCFlags { + POOF_CC_GCC = 1, + POOF_CC_CLANG = 1 << 1, + POOF_CC_MSVC = 1 << 2, + POOF_CC_MINGW = 1 << 3, +}; + +enum PoofOptimizationFlags { + POOF_O0 = 0, + POOF_O1 = 1, + POOF_O2 = 2, + POOF_O3 = 3, + POOF_MSSE = 1 << 3, + POOF_MSSE2 = 1 << 4, + POOF_AVX = 1 << 5, + POOF_AVX2 = 1 << 6, + POOF_AVX512F = 1 << 7, +}; + +#define POOF_IS_SET(var, flag) (((var) & (flag)) != 0) + +typedef struct Poof_Cmd { + const char **items; + size_t capacity; + size_t count; +} Poof_Cmd; + +typedef struct Poof_CC { + uint8_t compiler; // enum PoofCCFlags + uint8_t target_platform; // enum PoofTargetPlatform + uint32_t optimization; // bitwise PoofOptimizationFlags + bool debug_mode; + Poof_Cmd inputs; + const char *output; + Poof_Cmd includes; + Poof_Cmd lib_paths; + Poof_Cmd libs; + Poof_Cmd defines; + Poof_Cmd extra_flags; + + /* Platform specific flags */ + Poof_Cmd win32_flags; + Poof_Cmd linux_flags; + Poof_Cmd macos_flags; +} Poof_CC; + +typedef struct Poof_Batch { + Poof_Cmd *cmds; + size_t capacity; + size_t count; +} Poof_Batch; + +/* Command operations */ +extern void poof_cmd_append_internal(Poof_Cmd *cmd, ...); +#define poof_cmd_append(cmd, ...) poof_cmd_append_internal((cmd), __VA_ARGS__, NULL) + #define poof_cc_append(cc, ...) poof_cmd_append_internal((cc), __VA_ARGS__, NULL) + +#define poof_cc_append_win32(cc, ...) poof_cmd_append_internal(&((cc)->win32_flags), __VA_ARGS__, NULL) +#define poof_cc_append_linux(cc, ...) poof_cmd_append_internal(&((cc)->linux_flags), __VA_ARGS__, NULL) +#define poof_cc_append_macos(cc, ...) poof_cmd_append_internal(&((cc)->macos_flags), __VA_ARGS__, NULL) + +extern void poof_cmd_free(Poof_Cmd *cmd); +extern void poof_cmd_clear(Poof_Cmd *cmd); +extern bool poof_cmd_run(Poof_Cmd *cmd); + +/* Batch operations */ +extern void poof_batch_append_cmd(Poof_Batch *batch, Poof_Cmd cmd); +extern void poof_batch_append_cc(Poof_Batch *batch, Poof_CC *cc); +#define poof_batch_append(batch, cmd) poof_batch_append_cmd((batch), (cmd)) +extern void poof_batch_free(Poof_Batch *batch); +extern bool poof_batch_run(Poof_Batch *batch, const char *label); +extern bool poof_batch_run_parallel(Poof_Batch *batch, const char *label, size_t max_jobs); + +/* Compiler abstraction */ +extern uint8_t poof_cc_available(void); +extern void poof_cc_init(Poof_CC *cc, uint8_t compiler, uint8_t target_platform); +extern void poof_cc_free(Poof_CC *cc); +extern bool poof_cc_run(Poof_CC *cc); + +/* File and directory utilities */ +extern bool poof_mkdir(const char *path); +extern bool poof_touch(const char *path); +extern bool poof_rm(const char *path); +extern bool poof_rm_recursive(const char *path); +extern bool poof_copy_file(const char *src, const char *dst); +extern bool poof_needs_rebuild(const char *target, const char **sources, size_t source_count); + +/* Output and pretty printing */ +extern int poof_print(uint32_t col, const char *text, ...); +extern int poof_progress_bar(const char *label, float value, float min, float max, float width); + +/* Rebuild self macro */ +extern void poof_go_rebuild_urself_impl(int argc, char **argv, const char *source_file); + +#define POOF_GO_REBUILD_URSELF(argc, argv) poof_go_rebuild_urself_impl(argc, argv, __FILE__) + +#endif // _POOF_H_ + +#ifdef POOF_IMPLEMENTATION +#undef POOF_IMPLEMENTATION + +#if defined(_WIN32) +#define POOF_DEV_NULL "nul 2>&1" +#else +#define POOF_DEV_NULL "/dev/null 2>&1" +#endif + +static bool +poof__probe_cmd(const char *cmd) +{ + char buffer[256]; + snprintf(buffer, sizeof(buffer), "%s > " POOF_DEV_NULL, cmd); + return (system(buffer) == 0); +} + +extern uint8_t +poof_cc_available(void) +{ + uint8_t available = 0; + + poof_print(0x00FF88, "[POOF] Probing available compilers:\n"); + if (poof__probe_cmd("gcc --version")) { + available |= POOF_CC_GCC; + poof_print(0x00FF88, " - GCC: available\n"); + } + + if (poof__probe_cmd("clang --version")) { + available |= POOF_CC_CLANG; + poof_print(0x00FF88, " - CLANG: available\n"); + } + + if (poof__probe_cmd("x86_64-w64-mingw32-gcc --version") || poof__probe_cmd("mingw32-gcc --version")) { + available |= POOF_CC_MINGW; + poof_print(0x00FF88, " - MinGW: available\n"); + } + + if (poof__probe_cmd("cl")) { + available |= POOF_CC_MSVC; + poof_print(0x00FF88, " - MSVC: available\n"); + } + + return available; +} + +extern void +poof_cmd_append_internal(Poof_Cmd *cmd, ...) +{ + va_list args; + va_start(args, cmd); + const char *arg = NULL; + while ((arg = va_arg(args, const char *)) != NULL) { + + if (cmd->count >= cmd->capacity) { + size_t new_cap = cmd->capacity == 0 ? 16 : cmd->capacity * 2; + const char **new_items = (const char **)realloc(cmd->items, new_cap * sizeof(const char *)); + if (!new_items) return; + cmd->items = new_items; + cmd->capacity = new_cap; + } + cmd->items[cmd->count++] = arg; + } + va_end(args); +} + + +extern void +poof_cmd_clear(Poof_Cmd *cmd) +{ + /* clear count while keeping capacity */ + cmd->count = 0; +} + +extern void +poof_cmd_free(Poof_Cmd *cmd) +{ + if (cmd->items) { + free(cmd->items); + cmd->items = NULL; + } + cmd->capacity = 0; + cmd->count = 0; +} + +static char * +poof__cmd_to_string(const Poof_Cmd *cmd) +{ + if (!cmd || cmd->count == 0) return NULL; + + size_t total_len = 0; + for (size_t i = 0; i < cmd->count; ++i) { + total_len += strlen(cmd->items[i]) + 3; // quotes and space + } + + char *cmdline = (char *)malloc(total_len + 1); + if (!cmdline) return NULL; + cmdline[0] = '\0'; + + for (size_t i = 0; i < cmd->count; ++i) { + if (i > 0) strcat(cmdline, " "); + bool need_quote = (strchr(cmd->items[i], ' ') != NULL); + if (need_quote) strcat(cmdline, "\""); + strcat(cmdline, cmd->items[i]); + if (need_quote) strcat(cmdline, "\""); + } + + return cmdline; +} + +extern bool +poof_cmd_run(Poof_Cmd *cmd) +{ + char *cmdline = poof__cmd_to_string(cmd); + if (!cmdline) return false; + + printf("[POOF] Executing: "); + poof_print(0xA9B665, "%s\n", cmdline); + + int status = system(cmdline); + free(cmdline); + poof_cmd_clear(cmd); + return (status == 0); +} + +extern void +poof_cc_init(Poof_CC *cc, uint8_t compiler, uint8_t target_platform) +{ + memset(cc, 0, sizeof(Poof_CC)); + cc->compiler = compiler; + cc->target_platform = target_platform; + cc->optimization = POOF_O0; + cc->debug_mode = true; +} + +extern void +poof_cc_free(Poof_CC *cc) +{ + poof_cmd_free(&cc->inputs); + poof_cmd_free(&cc->includes); + poof_cmd_free(&cc->lib_paths); + poof_cmd_free(&cc->libs); + poof_cmd_free(&cc->defines); + poof_cmd_free(&cc->extra_flags); + poof_cmd_free(&cc->win32_flags); + poof_cmd_free(&cc->linux_flags); + poof_cmd_free(&cc->macos_flags); +} + +extern void +poof_batch_append_cmd(Poof_Batch *batch, Poof_Cmd cmd) +{ + if (batch->count >= batch->capacity) { + size_t new_cap = batch->capacity == 0 ? 16 : batch->capacity * 2; + Poof_Cmd *new_cmds = (Poof_Cmd *)realloc(batch->cmds, new_cap * sizeof(Poof_Cmd)); + if (!new_cmds) return; + batch->cmds = new_cmds; + batch->capacity = new_cap; + } + batch->cmds[batch->count++] = cmd; +} + +static Poof_Cmd +poof__cc_build_cmd(const Poof_CC *cc, uint8_t target_platform, bool multi_target) +{ + Poof_Cmd cmd = {0}; + + // Pick compiler binary + if (cc->compiler & POOF_CC_GCC) { + if (target_platform == POOF_TARGET_WIN32) { + poof_cmd_append(&cmd, "x86_64-w64-mingw32-gcc"); + } else { + poof_cmd_append(&cmd, "gcc"); + } + } else if (cc->compiler & POOF_CC_CLANG) { + poof_cmd_append(&cmd, "clang"); + if (target_platform == POOF_TARGET_WIN32) { + poof_cmd_append(&cmd, "-target"); + poof_cmd_append(&cmd, "x86_64-pc-windows-gnu"); + } else if (target_platform == POOF_TARGET_LINUX) { + poof_cmd_append(&cmd, "-target"); + poof_cmd_append(&cmd, "x86_64-unknown-linux-gnu"); + } else if (target_platform == POOF_TARGET_MACOS) { + poof_cmd_append(&cmd, "-target"); + poof_cmd_append(&cmd, "x86_64-apple-darwin"); + } + } else if (cc->compiler & POOF_CC_MINGW) { + poof_cmd_append(&cmd, "x86_64-w64-mingw32-gcc"); + } else if (cc->compiler & POOF_CC_MSVC) { + poof_cmd_append(&cmd, "cl"); + } else { + poof_cmd_append(&cmd, "gcc"); + } + + bool is_msvc = (cc->compiler & POOF_CC_MSVC) != 0; + + // Debug flags + if (cc->debug_mode) { + poof_cmd_append(&cmd, is_msvc ? "/Zi" : "-g"); + } + + // Optimization flags + uint32_t opt_level = cc->optimization & 3; + if (opt_level == POOF_O1) poof_cmd_append(&cmd, is_msvc ? "/O1" : "-O1"); + else if (opt_level == POOF_O2) poof_cmd_append(&cmd, is_msvc ? "/O2" : "-O2"); + else if (opt_level == POOF_O3) poof_cmd_append(&cmd, is_msvc ? "/O2" : "-O3"); + else poof_cmd_append(&cmd, is_msvc ? "/Od" : "-O0"); + + // SIMD / Arch extensions + if (POOF_IS_SET(cc->optimization, POOF_MSSE)) poof_cmd_append(&cmd, is_msvc ? "/arch:SSE" : "-msse"); + if (POOF_IS_SET(cc->optimization, POOF_MSSE2)) poof_cmd_append(&cmd, is_msvc ? "/arch:SSE2" : "-msse2"); + if (POOF_IS_SET(cc->optimization, POOF_AVX)) poof_cmd_append(&cmd, is_msvc ? "/arch:AVX" : "-mavx"); + if (POOF_IS_SET(cc->optimization, POOF_AVX2)) poof_cmd_append(&cmd, is_msvc ? "/arch:AVX2" : "-mavx2"); + if (POOF_IS_SET(cc->optimization, POOF_AVX512F)) poof_cmd_append(&cmd, is_msvc ? "/arch:AVX512" : "-mavx512f"); + + // Defines + for (size_t i = 0; i < cc->defines.count; ++i) { + char buf[256]; + snprintf(buf, sizeof(buf), "%s%s", is_msvc ? "/D" : "-D", cc->defines.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + + // Include dirs + for (size_t i = 0; i < cc->includes.count; ++i) { + char buf[512]; + snprintf(buf, sizeof(buf), "%s%s", is_msvc ? "/I" : "-I", cc->includes.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + + // Input files + for (size_t i = 0; i < cc->inputs.count; ++i) { + poof_cmd_append(&cmd, cc->inputs.items[i]); + } + + // Output target + if (cc->output) { + char out_path[512]; + if (target_platform == POOF_TARGET_WIN32) { + if (strstr(cc->output, ".exe")) { + snprintf(out_path, sizeof(out_path), "%s", cc->output); + } else { + snprintf(out_path, sizeof(out_path), multi_target ? "%s_win32.exe" : "%s.exe", cc->output); + } + } else if (target_platform == POOF_TARGET_MACOS) { + snprintf(out_path, sizeof(out_path), multi_target ? "%s_macos" : "%s", cc->output); + } else if (target_platform == POOF_TARGET_LINUX) { + snprintf(out_path, sizeof(out_path), multi_target ? "%s_linux" : "%s", cc->output); + } else { + snprintf(out_path, sizeof(out_path), "%s", cc->output); + } + + if (is_msvc) { + char buf[512]; + snprintf(buf, sizeof(buf), "/Fe:%s", out_path); + poof_cmd_append(&cmd, strdup(buf)); + } else { + poof_cmd_append(&cmd, "-o"); + poof_cmd_append(&cmd, strdup(out_path)); + } + } + + // Lib paths & libs + for (size_t i = 0; i < cc->lib_paths.count; ++i) { + char buf[512]; + snprintf(buf, sizeof(buf), "%s%s", is_msvc ? "/LIBPATH:" : "-L", cc->lib_paths.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + + for (size_t i = 0; i < cc->libs.count; ++i) { + if (is_msvc) { + char buf[256]; + snprintf(buf, sizeof(buf), "%s.lib", cc->libs.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } else { + char buf[256]; + snprintf(buf, sizeof(buf), "-l%s", cc->libs.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + } + + // Extra flags + for (size_t i = 0; i < cc->extra_flags.count; ++i) { + poof_cmd_append(&cmd, cc->extra_flags.items[i]); + } + + // Platform specific flags + const Poof_Cmd *plat_cmd = NULL; + if (target_platform == POOF_TARGET_WIN32) plat_cmd = &cc->win32_flags; + else if (target_platform == POOF_TARGET_LINUX) plat_cmd = &cc->linux_flags; + else if (target_platform == POOF_TARGET_MACOS) plat_cmd = &cc->macos_flags; + + if (plat_cmd) { + for (size_t i = 0; i < plat_cmd->count; ++i) { + poof_cmd_append(&cmd, plat_cmd->items[i]); + } + } + + return cmd; +} + +extern void +poof_batch_append_cc(Poof_Batch *batch, Poof_CC *cc) +{ + uint8_t mask = cc->target_platform; + if (mask == 0) { +#if defined(_WIN32) + mask = POOF_TARGET_WIN32; +#elif defined(__APPLE__) + mask = POOF_TARGET_MACOS; +#else + mask = POOF_TARGET_LINUX; +#endif + } + + uint8_t targets[3] = { POOF_TARGET_WIN32, POOF_TARGET_LINUX, POOF_TARGET_MACOS }; + int target_count = 0; + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) target_count++; + } + + bool multi_target = target_count > 1; + + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) { + Poof_Cmd cmd = poof__cc_build_cmd(cc, targets[i], multi_target); + poof_batch_append_cmd(batch, cmd); + } + } + + poof_cc_free(cc); +} + +extern void +poof_batch_free(Poof_Batch *batch) +{ + if (batch->cmds) { + for (size_t i = 0; i < batch->count; ++i) { + poof_cmd_free(&batch->cmds[i]); + } + free(batch->cmds); + batch->cmds = NULL; + } + batch->capacity = 0; + batch->count = 0; +} + +extern bool +poof_batch_run_parallel(Poof_Batch *batch, const char *label, size_t max_jobs) +{ + if (!batch || batch->count == 0) return true; + if (!label) label = "BATCH"; + +#if defined(_WIN32) + if (max_jobs == 0) { + SYSTEM_INFO sysinfo; + GetSystemInfo(&sysinfo); + max_jobs = sysinfo.dwNumberOfProcessors > 0 ? sysinfo.dwNumberOfProcessors : 4; + } + if (max_jobs > MAXIMUM_WAIT_OBJECTS) max_jobs = MAXIMUM_WAIT_OBJECTS; + + size_t total = batch->count; + size_t next_job = 0; + size_t completed = 0; + bool success = true; + + HANDLE *handles = (HANDLE *)calloc(max_jobs, sizeof(HANDLE)); + if (!handles) return false; + size_t active_jobs = 0; + + poof_progress_bar(label, 0.0f, 0.0f, (float)total, 30.0f); + + while (completed < total) { + while (active_jobs < max_jobs && next_job < total) { + char *cmdline = poof__cmd_to_string(&batch->cmds[next_job]); + if (cmdline) { + char win_cmd[1024]; + snprintf(win_cmd, sizeof(win_cmd), "cmd.exe /c \"%s\"", cmdline); + + STARTUPINFOA si = { sizeof(si) }; + PROCESS_INFORMATION pi = {0}; + + if (CreateProcessA(NULL, win_cmd, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) { + CloseHandle(pi.hThread); + handles[active_jobs++] = pi.hProcess; + } else { + success = false; + } + free(cmdline); + } + next_job++; + } + + if (active_jobs == 0) break; + + DWORD dwWait = WaitForMultipleObjects((DWORD)active_jobs, handles, FALSE, INFINITE); + if (dwWait >= WAIT_OBJECT_0 && dwWait < WAIT_OBJECT_0 + active_jobs) { + DWORD idx = dwWait - WAIT_OBJECT_0; + DWORD exit_code = 0; + GetExitCodeProcess(handles[idx], &exit_code); + if (exit_code != 0) success = false; + CloseHandle(handles[idx]); + + for (size_t i = idx; i < active_jobs - 1; ++i) { + handles[i] = handles[i + 1]; + } + active_jobs--; + completed++; + poof_progress_bar(label, (float)completed, 0.0f, (float)total, 30.0f); + } else { + break; + } + } + + free(handles); + poof_batch_free(batch); + return success; +#else + if (max_jobs == 0) { + long nprocs = sysconf(_SC_NPROCESSORS_ONLN); + max_jobs = (nprocs > 0) ? (size_t)nprocs : 4; + } + + size_t total = batch->count; + size_t next_job = 0; + size_t active_jobs = 0; + size_t completed = 0; + bool success = true; + + poof_progress_bar(label, 0.0f, 0.0f, (float)total, 30.0f); + + while (completed < total) { + while (active_jobs < max_jobs && next_job < total) { + char *cmdline = poof__cmd_to_string(&batch->cmds[next_job]); + if (cmdline) { + pid_t pid = fork(); + if (pid == 0) { + execl("/bin/sh", "sh", "-c", cmdline, (char *)NULL); + _exit(127); + } else if (pid > 0) { + active_jobs++; + } else { + success = false; + } + free(cmdline); + } + next_job++; + } + + if (active_jobs == 0) break; + + int status = 0; + pid_t done_pid = wait(&status); + if (done_pid > 0) { + active_jobs--; + completed++; + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + success = false; + } + poof_progress_bar(label, (float)completed, 0.0f, (float)total, 30.0f); + } else if (done_pid < 0 && errno == ECHILD) { + break; + } + } + + poof_batch_free(batch); + return success; +#endif +} + +extern bool +poof_batch_run(Poof_Batch *batch, const char *label) +{ + return poof_batch_run_parallel(batch, label, 0); +} + +static bool +poof__cc_run_single(const Poof_CC *cc, uint8_t target_platform, bool multi_target) +{ + Poof_Cmd cmd = poof__cc_build_cmd(cc, target_platform, multi_target); + bool result = poof_cmd_run(&cmd); + poof_cmd_free(&cmd); + return result; +} + +extern bool +poof_cc_run(Poof_CC *cc) +{ + uint8_t mask = cc->target_platform; + if (mask == 0) { +#if defined(_WIN32) + mask = POOF_TARGET_WIN32; +#elif defined(__APPLE__) + mask = POOF_TARGET_MACOS; +#else + mask = POOF_TARGET_LINUX; +#endif + } + + uint8_t targets[3] = { POOF_TARGET_WIN32, POOF_TARGET_LINUX, POOF_TARGET_MACOS }; + int target_count = 0; + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) target_count++; + } + + bool multi_target = target_count > 1; + bool success = true; + + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) { + if (!poof__cc_run_single(cc, targets[i], multi_target)) { + success = false; + } + } + } + + poof_cc_free(cc); + return success; +} + + +extern bool +poof_mkdir(const char *path) +{ +#if defined(_WIN32) + return _mkdir(path) == 0 || errno == EEXIST; +#else + return mkdir(path, 0755) == 0 || errno == EEXIST; +#endif +} + +extern bool +poof_touch(const char *path) +{ + FILE *f = fopen(path, "a"); + if (!f) return false; + fclose(f); + return true; +} + +extern bool +poof_rm(const char *path) +{ + return remove(path) == 0; +} + +extern bool +poof_rm_recursive(const char *path) +{ +#if defined(_WIN32) + char cmd[512]; + snprintf(cmd, sizeof(cmd), "rmdir /s /q \"%s\"", path); + return system(cmd) == 0; +#else + char cmd[512]; + snprintf(cmd, sizeof(cmd), "rm -rf \"%s\"", path); + return system(cmd) == 0; +#endif +} + +extern bool +poof_copy_file(const char *src, const char *dst) +{ + FILE *in = fopen(src, "rb"); + if (!in) return false; + FILE *out = fopen(dst, "wb"); + if (!out) { + fclose(in); + return false; + } + + char buffer[8192]; + size_t bytes; + while ((bytes = fread(buffer, 1, sizeof(buffer), in)) > 0) { + fwrite(buffer, 1, bytes, out); + } + + fclose(in); + fclose(out); + return true; +} + +static time_t +poof__get_mtime(const char *path) +{ + struct stat attr; + if (stat(path, &attr) != 0) return 0; + return attr.st_mtime; +} + +extern bool +poof_needs_rebuild(const char *target, const char **sources, size_t source_count) +{ + time_t target_mtime = poof__get_mtime(target); + if (target_mtime == 0) return true; // Target does not exist + + for (size_t i = 0; i < source_count; ++i) { + time_t src_mtime = poof__get_mtime(sources[i]); + if (src_mtime > target_mtime) return true; + } + return false; +} + +extern int +poof_print(uint32_t col, const char *text, ...) +{ + uint8_t r = (col >> 16) & 0xFF; + uint8_t g = (col >> 8) & 0xFF; + uint8_t b = col & 0xFF; + + printf("\033[38;2;%d;%d;%dm", r, g, b); + + va_list args; + va_start(args, text); + int res = vprintf(text, args); + va_end(args); + + printf("\033[0m"); + fflush(stdout); + return res; +} + +extern int +poof_progress_bar(const char *label, float value, float min, float max, float width) +{ + float norm = (value - min) / (max - min); + if (norm < 0.0f) norm = 0.0f; + if (norm > 1.0f) norm = 1.0f; + + int filled = (int)(norm * width); + int total = (int)width; + + char bar[256]; + int pos = 0; + for (int i = 0; i < total && pos < (int)sizeof(bar) - 1; ++i) { + if (i < filled) bar[pos++] = '|'; + else bar[pos++] = ' '; + } + bar[pos] = '\0'; + + printf("\r[%s] [", label ? label : "PROGRESS"); + poof_print(0xFE9900, "%s", bar); + printf("] %d/%d jobs", (int)value, (int)max); + if (norm >= 1.0f) printf("\n"); + fflush(stdout); + return 0; +} + +extern void +poof_go_rebuild_urself_impl(int argc, char **argv, const char *source_file) +{ + const char *binary_file = argv[0]; + const char *sources[] = { source_file, "Poof/poof.h" }; + + if (!poof_needs_rebuild(binary_file, sources, 2)) { + return; + } + + char binary_old[4096]; + snprintf(binary_old, sizeof(binary_old), "%s.old", binary_file); + + poof_print(0xFF8800, "[POOF] Source changed. Rebuilding %s...\n", binary_file); + + poof_rm(binary_old); + rename(binary_file, binary_old); + + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "gcc", "-o", binary_file, source_file, "-IPodium", "-IPoof"); + + if (!poof_cmd_run(&cmd)) { + poof_print(0xFF0000, "[POOF] Rebuild failed!\n"); + rename(binary_old, binary_file); + exit(1); + } + poof_cmd_free(&cmd); + + poof_print(0x00FF00, "[POOF] Rebuild successful! Re-launching binary...\n"); + + #if defined(_WIN32) + // Windows restart + int status = system(binary_file); + exit(status); + #else + execv(binary_file, argv); + perror("execv"); + exit(1); + #endif +} +#endif + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/README.md b/README.md new file mode 100644 index 0000000..dfde148 --- /dev/null +++ b/README.md @@ -0,0 +1,32 @@ +```
+ ▄▄ • ▄• ▄▌ ▐ ▄ .▄▄ · ▄▄▄▄▄ ▄▄▄· ▄▄· ▄ •▄
+▐█ ▀ ▪█▪██▌•█▌▐█▐█ ▀. •██ ▐█ ▀█ ▐█ ▌▪█▌▄▌▪
+▄█ ▀█▄█▌▐█▌▐█▐▐▌▄▀▀▀█▄ ▐█.▪▄█▀▀█ ██ ▄▄▐▀▀▄·
+▐█▄▪▐█▐█▄█▌██▐█▌▐█▄▪▐█ ▐█▌·▐█ ▪▐▌▐███▌▐█.█▌
+·▀▀▀▀ ▀▀▀ ▀▀ █▪ ▀▀▀▀ ▀▀▀ ▀ ▀ ·▀▀▀ ·▀ ▀
+```
+
+Collection of modular and minimal libraries used by our games. These libraries are designed to be
+"vendored in" aka. copy-and-pasted into a project's folder. Some libraries may depend on each other.
+Each library should contain a license in the header.
+
+Use at your own risk.
+
+| Name | Description |
+| ------ | ------------------------------------------ |
+| Podium | Platform layer & kitchen sink. |
+| Peak | Automagic cross-platform dark magic. |
+| Poof | Build software without going insane. |
+| Rend | Modern graphics API layer. |
+| Cool | Render HTML by calling functions. |
+
+## Maturity
+
+Rend and Podium are the most mature. Some libraries are still in development. Check the version
+included in each header file. Be encouraged and not discouraged if a library "isn't updated," it's probably
+because it works.
+
+## Documentation
+
+Documentation can be found on [godgun.net](https://godgun.net/docs) (results may vary).
+We recommend just reading the header files. It's all there.
diff --git a/Rend/README.md b/Rend/README.md new file mode 100644 index 0000000..2655f98 --- /dev/null +++ b/Rend/README.md @@ -0,0 +1,28 @@ +# Rend + +Send data to the GPU in a stable cross-platform and cross-graphics-API way. + +Here's an example render loop used in my game! + +```c + if (rend_renderer_frame_begin(renderer)) { + + // First pass: draw to a texture representing the in-game pixel art dimentions. + rend_cmd_render_begin_texture(renderer, &canvas); { // brackets for style + rend_cmd_bind_pipeline(ui_pipeline); + rend_cmd_push_constants(ui_pipeline, &push_constants, sizeof(push_constants)); + rend_cmd_draw(ui_pipeline, vert_count, 1); // a vertex buffer is not bound because it's passed via push constants + } rend_cmd_render_end_texture(renderer, &canvas); + + // Second pass: apply post processing using the native swapchain + rend_cmd_render_begin(renderer, 1.0, 0.5, 0.0, 1.0); { // RGBA clear colors + rend_cmd_bind_pipeline(present_pipeline); + rend_cmd_push_constants(present_pipeline, &present_pc, sizeof(present_pc)); + rend_cmd_draw(present_pipeline, 4, 1); // 4 vertices and one instance + } rend_cmd_render_end(renderer); + + rend_renderer_frame_end(renderer, &delta); + } + + } +``` diff --git a/Rend/demos/build.c b/Rend/demos/build.c new file mode 100644 index 0000000..3d67006 --- /dev/null +++ b/Rend/demos/build.c @@ -0,0 +1,85 @@ +#define POOF_IMPLEMENTATION +#include "poof.h" + +void add_podium_config(Poof_CC *cc) { + poof_cmd_append(&cc->includes, "Podium"); + +#if defined(PODIUM_WIN32) + poof_cc_append_win32(cc, "-DPODIUM_WIN32", "-luser32", "-lgdi32"); + const char *vulkan_sdk = getenv("VULKAN_SDK"); + if (vulkan_sdk) { + char inc_buf[512], lib_buf[512]; + snprintf(inc_buf, sizeof(inc_buf), "-I%s/Include", vulkan_sdk); + snprintf(lib_buf, sizeof(lib_buf), "-L%s/Lib", vulkan_sdk); + poof_cc_append_win32(cc, strdup(inc_buf), strdup(lib_buf)); + } + poof_cc_append_win32(cc, "-lvulkan-1"); +#else + poof_cc_append_linux(cc, "-lX11", "-D_REENTRANT", "-lpulse", "-lpulse-simple", "-pthread", "-lvulkan"); +#endif +} + +int main(int argc, char **argv) { + POOF_GO_REBUILD_URSELF(argc, argv); + + Poof_Batch batch = {0}; + + { + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "slangc", "rend_compute.slang", "-target", "spirv", "-entry", "particleMain", "-stage", "compute", "-o", "compute/particle.spv"); + poof_batch_append_cmd(&batch, cmd); + } + + { + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "slangc", "rend_compute.slang", "-target", "spirv", "-entry", "sandMain", "-stage", "compute", "-o", "compute/sand.spv"); + poof_batch_append_cmd(&batch, cmd); + } + + { + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "slangc", "rend_compute.slang", "-target", "spirv", "-entry", "vertMain", "-stage", "vertex", "-o", "compute/vert.spv"); + poof_batch_append_cmd(&batch, cmd); + } + + { + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "slangc", "rend_compute.slang", "-target", "spirv", "-entry", "fragMain", "-stage", "fragment", "-o", "compute/frag.spv"); + poof_batch_append_cmd(&batch, cmd); + } + + // Debug build + { + Poof_CC cc; + poof_cc_init(&cc, POOF_CC_GCC, POOF_TARGET_HOST); + cc.debug_mode = true; + cc.optimization = POOF_O0; + cc.output = "compute/rend_compute_demo"; + poof_cmd_append(&cc.inputs, "rend_compute.c"); + poof_cmd_append(&cc.includes, "..", "."); + poof_cmd_append(&cc.defines, "REND_DEBUG"); + poof_cmd_append(&cc.libs, "m"); + poof_cmd_append(&cc.extra_flags, "-ggdb"); + add_podium_config(&cc); + + poof_batch_append_cc(&batch, &cc); + } + + // Debug build + { + Poof_CC cc; + poof_cc_init(&cc, POOF_CC_GCC, POOF_TARGET_HOST); + cc.debug_mode = true; + cc.optimization = POOF_O3 | POOF_MSSE2; + cc.output = "compute/rend_compute_fast"; + poof_cmd_append(&cc.inputs, "rend_compute.c"); + poof_cmd_append(&cc.includes, ".."); + poof_cmd_append(&cc.libs, "m"); + add_podium_config(&cc); + + poof_batch_append_cc(&batch, &cc); + } + + poof_batch_run(&batch, "Rend Demos"); + return 0; +} diff --git a/Rend/demos/compute/frag.spv b/Rend/demos/compute/frag.spv Binary files differnew file mode 100644 index 0000000..5366c51 --- /dev/null +++ b/Rend/demos/compute/frag.spv diff --git a/Rend/demos/compute/particle.spv b/Rend/demos/compute/particle.spv Binary files differnew file mode 100644 index 0000000..6547772 --- /dev/null +++ b/Rend/demos/compute/particle.spv diff --git a/Rend/demos/compute/rend_compute_demo b/Rend/demos/compute/rend_compute_demo Binary files differnew file mode 100755 index 0000000..071b495 --- /dev/null +++ b/Rend/demos/compute/rend_compute_demo diff --git a/Rend/demos/compute/rend_compute_fast b/Rend/demos/compute/rend_compute_fast Binary files differnew file mode 100755 index 0000000..b9dac67 --- /dev/null +++ b/Rend/demos/compute/rend_compute_fast diff --git a/Rend/demos/compute/sand.spv b/Rend/demos/compute/sand.spv Binary files differnew file mode 100644 index 0000000..9dcac4d --- /dev/null +++ b/Rend/demos/compute/sand.spv diff --git a/Rend/demos/compute/vert.spv b/Rend/demos/compute/vert.spv Binary files differnew file mode 100644 index 0000000..e5d2970 --- /dev/null +++ b/Rend/demos/compute/vert.spv diff --git a/Rend/demos/poof.h b/Rend/demos/poof.h new file mode 100644 index 0000000..3480557 --- /dev/null +++ b/Rend/demos/poof.h @@ -0,0 +1,874 @@ +/* =========================================================================== + * POOF - The Universal Build System - Copyright (c) 2026 Vasco Alves + * + * PREFIX: Poof_ (types) or poof_ (functions & variables) + * + * DESCRIPTION: + * Platform independent-ish build system! + * Performant, multi-threaded and mesmerizing. + * + * See LICENSE at the end of the file. + * =========================================================================== */ + +#ifndef _POOF_H_ +#define _POOF_H_ + +#define POOF_MAJOR 0 +#define POOF_MINOR 1 +#define POOF_PATCH 0 + +#include <stdint.h> +#include <stdbool.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <sys/stat.h> + +#if defined(_WIN32) + #include <windows.h> + #include <direct.h> + #include <io.h> +#else + #include <unistd.h> + #include <sys/wait.h> + #include <sys/types.h> + #include <dirent.h> + #include <errno.h> +#endif + +enum PoofTargetPlatform { + POOF_TARGET_HOST = 0, + POOF_TARGET_WIN32 = 1, + POOF_TARGET_LINUX = 1 << 1, + POOF_TARGET_MACOS = 1 << 2, +}; + +enum PoofCCFlags { + POOF_CC_GCC = 1, + POOF_CC_CLANG = 1 << 1, + POOF_CC_MSVC = 1 << 2, + POOF_CC_MINGW = 1 << 3, +}; + +enum PoofOptimizationFlags { + POOF_O0 = 0, + POOF_O1 = 1, + POOF_O2 = 2, + POOF_O3 = 3, + POOF_MSSE = 1 << 3, + POOF_MSSE2 = 1 << 4, + POOF_AVX = 1 << 5, + POOF_AVX2 = 1 << 6, + POOF_AVX512F = 1 << 7, +}; + +#define POOF_IS_SET(var, flag) (((var) & (flag)) != 0) + +typedef struct Poof_Cmd { + const char **items; + size_t capacity; + size_t count; +} Poof_Cmd; + +typedef struct Poof_CC { + uint8_t compiler; // enum PoofCCFlags + uint8_t target_platform; // enum PoofTargetPlatform + uint32_t optimization; // bitwise PoofOptimizationFlags + bool debug_mode; + Poof_Cmd inputs; + const char *output; + Poof_Cmd includes; + Poof_Cmd lib_paths; + Poof_Cmd libs; + Poof_Cmd defines; + Poof_Cmd extra_flags; + + /* Platform specific flags */ + Poof_Cmd win32_flags; + Poof_Cmd linux_flags; + Poof_Cmd macos_flags; +} Poof_CC; + +typedef struct Poof_Batch { + Poof_Cmd *cmds; + size_t capacity; + size_t count; +} Poof_Batch; + +/* Command operations */ +extern void poof_cmd_append_internal(Poof_Cmd *cmd, ...); +#define poof_cmd_append(cmd, ...) poof_cmd_append_internal((cmd), __VA_ARGS__, NULL) + +#define poof_cc_append_win32(cc, ...) poof_cmd_append_internal(&((cc)->win32_flags), __VA_ARGS__, NULL) +#define poof_cc_append_linux(cc, ...) poof_cmd_append_internal(&((cc)->linux_flags), __VA_ARGS__, NULL) +#define poof_cc_append_macos(cc, ...) poof_cmd_append_internal(&((cc)->macos_flags), __VA_ARGS__, NULL) + +extern void poof_cmd_free(Poof_Cmd *cmd); +extern void poof_cmd_clear(Poof_Cmd *cmd); +extern bool poof_cmd_run(Poof_Cmd *cmd); + +/* Batch operations */ +extern void poof_batch_append_cmd(Poof_Batch *batch, Poof_Cmd cmd); +extern void poof_batch_append_cc(Poof_Batch *batch, Poof_CC *cc); +#define poof_batch_append(batch, cmd) poof_batch_append_cmd((batch), (cmd)) +extern void poof_batch_free(Poof_Batch *batch); +extern bool poof_batch_run(Poof_Batch *batch, const char *label); +extern bool poof_batch_run_parallel(Poof_Batch *batch, const char *label, size_t max_jobs); + +/* Compiler abstraction */ +extern uint8_t poof_cc_available(void); +extern void poof_cc_init(Poof_CC *cc, uint8_t compiler, uint8_t target_platform); +extern void poof_cc_free(Poof_CC *cc); +extern bool poof_cc_run(Poof_CC *cc); + +/* File and directory utilities */ +extern bool poof_mkdir(const char *path); +extern bool poof_touch(const char *path); +extern bool poof_rm(const char *path); +extern bool poof_rm_recursive(const char *path); +extern bool poof_copy_file(const char *src, const char *dst); +extern bool poof_needs_rebuild(const char *target, const char **sources, size_t source_count); + +/* Output and pretty printing */ +extern int poof_print(uint32_t col, const char *text, ...); +extern int poof_progress_bar(const char *label, float value, float min, float max, float width); + +/* Rebuild self macro */ +extern void poof_go_rebuild_urself_impl(int argc, char **argv, const char *source_file); + +#define POOF_GO_REBUILD_URSELF(argc, argv) poof_go_rebuild_urself_impl(argc, argv, __FILE__) + +#endif // _POOF_H_ + +#ifdef POOF_IMPLEMENTATION +#undef POOF_IMPLEMENTATION + +#if defined(_WIN32) +#define POOF_DEV_NULL "nul 2>&1" +#else +#define POOF_DEV_NULL "/dev/null 2>&1" +#endif + +static bool +poof__probe_cmd(const char *cmd) +{ + char buffer[256]; + snprintf(buffer, sizeof(buffer), "%s > " POOF_DEV_NULL, cmd); + return (system(buffer) == 0); +} + +extern uint8_t +poof_cc_available(void) +{ + uint8_t available = 0; + + poof_print(0x00FF88, "[POOF] Probing available compilers:\n"); + if (poof__probe_cmd("gcc --version")) { + available |= POOF_CC_GCC; + poof_print(0x00FF88, " - GCC: available\n"); + } + + if (poof__probe_cmd("clang --version")) { + available |= POOF_CC_CLANG; + poof_print(0x00FF88, " - CLANG: available\n"); + } + + if (poof__probe_cmd("x86_64-w64-mingw32-gcc --version") || poof__probe_cmd("mingw32-gcc --version")) { + available |= POOF_CC_MINGW; + poof_print(0x00FF88, " - MinGW: available\n"); + } + + if (poof__probe_cmd("cl")) { + available |= POOF_CC_MSVC; + poof_print(0x00FF88, " - MSVC: available\n"); + } + + return available; +} + +extern void +poof_cmd_append_internal(Poof_Cmd *cmd, ...) +{ + va_list args; + va_start(args, cmd); + const char *arg = NULL; + while ((arg = va_arg(args, const char *)) != NULL) { + + if (cmd->count >= cmd->capacity) { + size_t new_cap = cmd->capacity == 0 ? 16 : cmd->capacity * 2; + const char **new_items = (const char **)realloc(cmd->items, new_cap * sizeof(const char *)); + if (!new_items) return; + cmd->items = new_items; + cmd->capacity = new_cap; + } + cmd->items[cmd->count++] = arg; + } + va_end(args); +} + + +extern void +poof_cmd_clear(Poof_Cmd *cmd) +{ + /* clear count while keeping capacity */ + cmd->count = 0; +} + +extern void +poof_cmd_free(Poof_Cmd *cmd) +{ + if (cmd->items) { + free(cmd->items); + cmd->items = NULL; + } + cmd->capacity = 0; + cmd->count = 0; +} + +static char * +poof__cmd_to_string(const Poof_Cmd *cmd) +{ + if (!cmd || cmd->count == 0) return NULL; + + size_t total_len = 0; + for (size_t i = 0; i < cmd->count; ++i) { + total_len += strlen(cmd->items[i]) + 3; // quotes and space + } + + char *cmdline = (char *)malloc(total_len + 1); + if (!cmdline) return NULL; + cmdline[0] = '\0'; + + for (size_t i = 0; i < cmd->count; ++i) { + if (i > 0) strcat(cmdline, " "); + bool need_quote = (strchr(cmd->items[i], ' ') != NULL); + if (need_quote) strcat(cmdline, "\""); + strcat(cmdline, cmd->items[i]); + if (need_quote) strcat(cmdline, "\""); + } + + return cmdline; +} + +extern bool +poof_cmd_run(Poof_Cmd *cmd) +{ + char *cmdline = poof__cmd_to_string(cmd); + if (!cmdline) return false; + + printf("[POOF] Executing: "); + poof_print(0xA9B665, "%s\n", cmdline); + + int status = system(cmdline); + free(cmdline); + poof_cmd_clear(cmd); + return (status == 0); +} + +extern void +poof_cc_init(Poof_CC *cc, uint8_t compiler, uint8_t target_platform) +{ + memset(cc, 0, sizeof(Poof_CC)); + cc->compiler = compiler; + cc->target_platform = target_platform; + cc->optimization = POOF_O0; + cc->debug_mode = true; +} + +extern void +poof_cc_free(Poof_CC *cc) +{ + poof_cmd_free(&cc->inputs); + poof_cmd_free(&cc->includes); + poof_cmd_free(&cc->lib_paths); + poof_cmd_free(&cc->libs); + poof_cmd_free(&cc->defines); + poof_cmd_free(&cc->extra_flags); + poof_cmd_free(&cc->win32_flags); + poof_cmd_free(&cc->linux_flags); + poof_cmd_free(&cc->macos_flags); +} + +extern void +poof_batch_append_cmd(Poof_Batch *batch, Poof_Cmd cmd) +{ + if (batch->count >= batch->capacity) { + size_t new_cap = batch->capacity == 0 ? 16 : batch->capacity * 2; + Poof_Cmd *new_cmds = (Poof_Cmd *)realloc(batch->cmds, new_cap * sizeof(Poof_Cmd)); + if (!new_cmds) return; + batch->cmds = new_cmds; + batch->capacity = new_cap; + } + batch->cmds[batch->count++] = cmd; +} + +static Poof_Cmd +poof__cc_build_cmd(const Poof_CC *cc, uint8_t target_platform, bool multi_target) +{ + Poof_Cmd cmd = {0}; + + // Pick compiler binary + if (cc->compiler & POOF_CC_GCC) { + if (target_platform == POOF_TARGET_WIN32) { + poof_cmd_append(&cmd, "x86_64-w64-mingw32-gcc"); + } else { + poof_cmd_append(&cmd, "gcc"); + } + } else if (cc->compiler & POOF_CC_CLANG) { + poof_cmd_append(&cmd, "clang"); + if (target_platform == POOF_TARGET_WIN32) { + poof_cmd_append(&cmd, "-target"); + poof_cmd_append(&cmd, "x86_64-pc-windows-gnu"); + } else if (target_platform == POOF_TARGET_LINUX) { + poof_cmd_append(&cmd, "-target"); + poof_cmd_append(&cmd, "x86_64-unknown-linux-gnu"); + } else if (target_platform == POOF_TARGET_MACOS) { + poof_cmd_append(&cmd, "-target"); + poof_cmd_append(&cmd, "x86_64-apple-darwin"); + } + } else if (cc->compiler & POOF_CC_MINGW) { + poof_cmd_append(&cmd, "x86_64-w64-mingw32-gcc"); + } else if (cc->compiler & POOF_CC_MSVC) { + poof_cmd_append(&cmd, "cl"); + } else { + poof_cmd_append(&cmd, "gcc"); + } + + bool is_msvc = (cc->compiler & POOF_CC_MSVC) != 0; + + // Debug flags + if (cc->debug_mode) { + poof_cmd_append(&cmd, is_msvc ? "/Zi" : "-g"); + } + + // Optimization flags + uint32_t opt_level = cc->optimization & 3; + if (opt_level == POOF_O1) poof_cmd_append(&cmd, is_msvc ? "/O1" : "-O1"); + else if (opt_level == POOF_O2) poof_cmd_append(&cmd, is_msvc ? "/O2" : "-O2"); + else if (opt_level == POOF_O3) poof_cmd_append(&cmd, is_msvc ? "/O2" : "-O3"); + else poof_cmd_append(&cmd, is_msvc ? "/Od" : "-O0"); + + // SIMD / Arch extensions + if (POOF_IS_SET(cc->optimization, POOF_MSSE)) poof_cmd_append(&cmd, is_msvc ? "/arch:SSE" : "-msse"); + if (POOF_IS_SET(cc->optimization, POOF_MSSE2)) poof_cmd_append(&cmd, is_msvc ? "/arch:SSE2" : "-msse2"); + if (POOF_IS_SET(cc->optimization, POOF_AVX)) poof_cmd_append(&cmd, is_msvc ? "/arch:AVX" : "-mavx"); + if (POOF_IS_SET(cc->optimization, POOF_AVX2)) poof_cmd_append(&cmd, is_msvc ? "/arch:AVX2" : "-mavx2"); + if (POOF_IS_SET(cc->optimization, POOF_AVX512F)) poof_cmd_append(&cmd, is_msvc ? "/arch:AVX512" : "-mavx512f"); + + // Defines + for (size_t i = 0; i < cc->defines.count; ++i) { + char buf[256]; + snprintf(buf, sizeof(buf), "%s%s", is_msvc ? "/D" : "-D", cc->defines.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + + // Include dirs + for (size_t i = 0; i < cc->includes.count; ++i) { + char buf[512]; + snprintf(buf, sizeof(buf), "%s%s", is_msvc ? "/I" : "-I", cc->includes.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + + // Input files + for (size_t i = 0; i < cc->inputs.count; ++i) { + poof_cmd_append(&cmd, cc->inputs.items[i]); + } + + // Output target + if (cc->output) { + char out_path[512]; + if (target_platform == POOF_TARGET_WIN32) { + if (strstr(cc->output, ".exe")) { + snprintf(out_path, sizeof(out_path), "%s", cc->output); + } else { + snprintf(out_path, sizeof(out_path), multi_target ? "%s_win32.exe" : "%s.exe", cc->output); + } + } else if (target_platform == POOF_TARGET_MACOS) { + snprintf(out_path, sizeof(out_path), multi_target ? "%s_macos" : "%s", cc->output); + } else if (target_platform == POOF_TARGET_LINUX) { + snprintf(out_path, sizeof(out_path), multi_target ? "%s_linux" : "%s", cc->output); + } else { + snprintf(out_path, sizeof(out_path), "%s", cc->output); + } + + if (is_msvc) { + char buf[512]; + snprintf(buf, sizeof(buf), "/Fe:%s", out_path); + poof_cmd_append(&cmd, strdup(buf)); + } else { + poof_cmd_append(&cmd, "-o"); + poof_cmd_append(&cmd, strdup(out_path)); + } + } + + // Lib paths & libs + for (size_t i = 0; i < cc->lib_paths.count; ++i) { + char buf[512]; + snprintf(buf, sizeof(buf), "%s%s", is_msvc ? "/LIBPATH:" : "-L", cc->lib_paths.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + + for (size_t i = 0; i < cc->libs.count; ++i) { + if (is_msvc) { + char buf[256]; + snprintf(buf, sizeof(buf), "%s.lib", cc->libs.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } else { + char buf[256]; + snprintf(buf, sizeof(buf), "-l%s", cc->libs.items[i]); + poof_cmd_append(&cmd, strdup(buf)); + } + } + + // Extra flags + for (size_t i = 0; i < cc->extra_flags.count; ++i) { + poof_cmd_append(&cmd, cc->extra_flags.items[i]); + } + + // Platform specific flags + const Poof_Cmd *plat_cmd = NULL; + if (target_platform == POOF_TARGET_WIN32) plat_cmd = &cc->win32_flags; + else if (target_platform == POOF_TARGET_LINUX) plat_cmd = &cc->linux_flags; + else if (target_platform == POOF_TARGET_MACOS) plat_cmd = &cc->macos_flags; + + if (plat_cmd) { + for (size_t i = 0; i < plat_cmd->count; ++i) { + poof_cmd_append(&cmd, plat_cmd->items[i]); + } + } + + return cmd; +} + +extern void +poof_batch_append_cc(Poof_Batch *batch, Poof_CC *cc) +{ + uint8_t mask = cc->target_platform; + if (mask == 0) { +#if defined(_WIN32) + mask = POOF_TARGET_WIN32; +#elif defined(__APPLE__) + mask = POOF_TARGET_MACOS; +#else + mask = POOF_TARGET_LINUX; +#endif + } + + uint8_t targets[3] = { POOF_TARGET_WIN32, POOF_TARGET_LINUX, POOF_TARGET_MACOS }; + int target_count = 0; + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) target_count++; + } + + bool multi_target = target_count > 1; + + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) { + Poof_Cmd cmd = poof__cc_build_cmd(cc, targets[i], multi_target); + poof_batch_append_cmd(batch, cmd); + } + } + + poof_cc_free(cc); +} + +extern void +poof_batch_free(Poof_Batch *batch) +{ + if (batch->cmds) { + for (size_t i = 0; i < batch->count; ++i) { + poof_cmd_free(&batch->cmds[i]); + } + free(batch->cmds); + batch->cmds = NULL; + } + batch->capacity = 0; + batch->count = 0; +} + +extern bool +poof_batch_run_parallel(Poof_Batch *batch, const char *label, size_t max_jobs) +{ + if (!batch || batch->count == 0) return true; + if (!label) label = "BATCH"; + +#if defined(_WIN32) + if (max_jobs == 0) { + SYSTEM_INFO sysinfo; + GetSystemInfo(&sysinfo); + max_jobs = sysinfo.dwNumberOfProcessors > 0 ? sysinfo.dwNumberOfProcessors : 4; + } + if (max_jobs > MAXIMUM_WAIT_OBJECTS) max_jobs = MAXIMUM_WAIT_OBJECTS; + + size_t total = batch->count; + size_t next_job = 0; + size_t completed = 0; + bool success = true; + + HANDLE *handles = (HANDLE *)calloc(max_jobs, sizeof(HANDLE)); + if (!handles) return false; + size_t active_jobs = 0; + + poof_progress_bar(label, 0.0f, 0.0f, (float)total, 30.0f); + + while (completed < total) { + while (active_jobs < max_jobs && next_job < total) { + char *cmdline = poof__cmd_to_string(&batch->cmds[next_job]); + if (cmdline) { + char win_cmd[1024]; + snprintf(win_cmd, sizeof(win_cmd), "cmd.exe /c \"%s\"", cmdline); + + STARTUPINFOA si = { sizeof(si) }; + PROCESS_INFORMATION pi = {0}; + + if (CreateProcessA(NULL, win_cmd, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) { + CloseHandle(pi.hThread); + handles[active_jobs++] = pi.hProcess; + } else { + success = false; + } + free(cmdline); + } + next_job++; + } + + if (active_jobs == 0) break; + + DWORD dwWait = WaitForMultipleObjects((DWORD)active_jobs, handles, FALSE, INFINITE); + if (dwWait >= WAIT_OBJECT_0 && dwWait < WAIT_OBJECT_0 + active_jobs) { + DWORD idx = dwWait - WAIT_OBJECT_0; + DWORD exit_code = 0; + GetExitCodeProcess(handles[idx], &exit_code); + if (exit_code != 0) success = false; + CloseHandle(handles[idx]); + + for (size_t i = idx; i < active_jobs - 1; ++i) { + handles[i] = handles[i + 1]; + } + active_jobs--; + completed++; + poof_progress_bar(label, (float)completed, 0.0f, (float)total, 30.0f); + } else { + break; + } + } + + free(handles); + poof_batch_free(batch); + return success; +#else + if (max_jobs == 0) { + long nprocs = sysconf(_SC_NPROCESSORS_ONLN); + max_jobs = (nprocs > 0) ? (size_t)nprocs : 4; + } + + size_t total = batch->count; + size_t next_job = 0; + size_t active_jobs = 0; + size_t completed = 0; + bool success = true; + + poof_progress_bar(label, 0.0f, 0.0f, (float)total, 30.0f); + + while (completed < total) { + while (active_jobs < max_jobs && next_job < total) { + char *cmdline = poof__cmd_to_string(&batch->cmds[next_job]); + if (cmdline) { + pid_t pid = fork(); + if (pid == 0) { + execl("/bin/sh", "sh", "-c", cmdline, (char *)NULL); + _exit(127); + } else if (pid > 0) { + active_jobs++; + } else { + success = false; + } + free(cmdline); + } + next_job++; + } + + if (active_jobs == 0) break; + + int status = 0; + pid_t done_pid = wait(&status); + if (done_pid > 0) { + active_jobs--; + completed++; + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + success = false; + } + poof_progress_bar(label, (float)completed, 0.0f, (float)total, 30.0f); + } else if (done_pid < 0 && errno == ECHILD) { + break; + } + } + + poof_batch_free(batch); + return success; +#endif +} + +extern bool +poof_batch_run(Poof_Batch *batch, const char *label) +{ + return poof_batch_run_parallel(batch, label, 0); +} + +static bool +poof__cc_run_single(const Poof_CC *cc, uint8_t target_platform, bool multi_target) +{ + Poof_Cmd cmd = poof__cc_build_cmd(cc, target_platform, multi_target); + bool result = poof_cmd_run(&cmd); + poof_cmd_free(&cmd); + return result; +} + +extern bool +poof_cc_run(Poof_CC *cc) +{ + uint8_t mask = cc->target_platform; + if (mask == 0) { +#if defined(_WIN32) + mask = POOF_TARGET_WIN32; +#elif defined(__APPLE__) + mask = POOF_TARGET_MACOS; +#else + mask = POOF_TARGET_LINUX; +#endif + } + + uint8_t targets[3] = { POOF_TARGET_WIN32, POOF_TARGET_LINUX, POOF_TARGET_MACOS }; + int target_count = 0; + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) target_count++; + } + + bool multi_target = target_count > 1; + bool success = true; + + for (int i = 0; i < 3; ++i) { + if (mask & targets[i]) { + if (!poof__cc_run_single(cc, targets[i], multi_target)) { + success = false; + } + } + } + + poof_cc_free(cc); + return success; +} + + +extern bool +poof_mkdir(const char *path) +{ +#if defined(_WIN32) + return _mkdir(path) == 0 || errno == EEXIST; +#else + return mkdir(path, 0755) == 0 || errno == EEXIST; +#endif +} + +extern bool +poof_touch(const char *path) +{ + FILE *f = fopen(path, "a"); + if (!f) return false; + fclose(f); + return true; +} + +extern bool +poof_rm(const char *path) +{ + return remove(path) == 0; +} + +extern bool +poof_rm_recursive(const char *path) +{ +#if defined(_WIN32) + char cmd[512]; + snprintf(cmd, sizeof(cmd), "rmdir /s /q \"%s\"", path); + return system(cmd) == 0; +#else + char cmd[512]; + snprintf(cmd, sizeof(cmd), "rm -rf \"%s\"", path); + return system(cmd) == 0; +#endif +} + +extern bool +poof_copy_file(const char *src, const char *dst) +{ + FILE *in = fopen(src, "rb"); + if (!in) return false; + FILE *out = fopen(dst, "wb"); + if (!out) { + fclose(in); + return false; + } + + char buffer[8192]; + size_t bytes; + while ((bytes = fread(buffer, 1, sizeof(buffer), in)) > 0) { + fwrite(buffer, 1, bytes, out); + } + + fclose(in); + fclose(out); + return true; +} + +static time_t +poof__get_mtime(const char *path) +{ + struct stat attr; + if (stat(path, &attr) != 0) return 0; + return attr.st_mtime; +} + +extern bool +poof_needs_rebuild(const char *target, const char **sources, size_t source_count) +{ + time_t target_mtime = poof__get_mtime(target); + if (target_mtime == 0) return true; // Target does not exist + + for (size_t i = 0; i < source_count; ++i) { + time_t src_mtime = poof__get_mtime(sources[i]); + if (src_mtime > target_mtime) return true; + } + return false; +} + +extern int +poof_print(uint32_t col, const char *text, ...) +{ + uint8_t r = (col >> 16) & 0xFF; + uint8_t g = (col >> 8) & 0xFF; + uint8_t b = col & 0xFF; + + printf("\033[38;2;%d;%d;%dm", r, g, b); + + va_list args; + va_start(args, text); + int res = vprintf(text, args); + va_end(args); + + printf("\033[0m"); + fflush(stdout); + return res; +} + +extern int +poof_progress_bar(const char *label, float value, float min, float max, float width) +{ + float norm = (value - min) / (max - min); + if (norm < 0.0f) norm = 0.0f; + if (norm > 1.0f) norm = 1.0f; + + int filled = (int)(norm * width); + int total = (int)width; + + char bar[256]; + int pos = 0; + for (int i = 0; i < total && pos < (int)sizeof(bar) - 1; ++i) { + if (i < filled) bar[pos++] = '|'; + else bar[pos++] = ' '; + } + bar[pos] = '\0'; + + printf("\r[%s] [", label ? label : "PROGRESS"); + poof_print(0xFE9900, "%s", bar); + printf("] %d/%d jobs", (int)value, (int)max); + if (norm >= 1.0f) printf("\n"); + fflush(stdout); + return 0; +} + +extern void +poof_go_rebuild_urself_impl(int argc, char **argv, const char *source_file) +{ + const char *binary_file = argv[0]; + const char *sources[] = { source_file, "Poof/poof.h" }; + + if (!poof_needs_rebuild(binary_file, sources, 2)) { + return; + } + + char binary_old[4096]; + snprintf(binary_old, sizeof(binary_old), "%s.old", binary_file); + + poof_print(0xFF8800, "[POOF] Source changed. Rebuilding %s...\n", binary_file); + + poof_rm(binary_old); + rename(binary_file, binary_old); + + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "gcc", "-o", binary_file, source_file, "-IPodium", "-IPoof"); + + if (!poof_cmd_run(&cmd)) { + poof_print(0xFF0000, "[POOF] Rebuild failed!\n"); + rename(binary_old, binary_file); + exit(1); + } + poof_cmd_free(&cmd); + + poof_print(0x00FF00, "[POOF] Rebuild successful! Re-launching binary...\n"); + + #if defined(_WIN32) + // Windows restart + int status = system(binary_file); + exit(status); + #else + execv(binary_file, argv); + perror("execv"); + exit(1); + #endif +} +#endif + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/Rend/demos/rend_compute.c b/Rend/demos/rend_compute.c new file mode 100644 index 0000000..7d5e407 --- /dev/null +++ b/Rend/demos/rend_compute.c @@ -0,0 +1,214 @@ +#include <string.h> + +#ifdef DEBUG_MEMORY +#define malloc(size) p_debug_malloc_impl((size), __FILE__, __LINE__, __func__) +#define realloc(ptr, size) p_debug_realloc_impl((ptr), (size), __FILE__, __LINE__, __func__) +#define free(ptr) p_debug_free_impl((ptr), __FILE__, __LINE__, __func__) +#endif + +#include "../rend.h" +#include "../rend.c" +#include <stddef.h> + +#define PODIUM_IMPLEMENTATION +#define P_MODULE_MATH +#define P_MODULE_VULKAN +#include "podium.h" + +float delta = 0; +P_Window win; +P_Event ev; + +bool vsync = true; + +#define PARTICLE_COUNT 1024 * 10 +#define GRID_WIDTH 512 +#define GRID_HEIGHT 512 + +typedef struct { + uint64_t particles; + uint64_t src_grid; + uint64_t dst_grid; + uint32_t particle_count; + uint32_t width; + uint32_t height; + float delta_time; + uint32_t render_mode; +} PushConstants; + +typedef struct Particle { + float pos[2]; + float vel[2]; +} Particle; + +uint32_t pcg_hash(uint32_t seed) { + uint32_t state = seed * 747796405u + 2891336453u; + uint32_t word = ((state >> ((state >> 28u) + 4u)) ^ state) * 277803737u; + return (word >> 22u) ^ word; +} + +float cool_beans(uint32_t *seed) { + *seed = pcg_hash(*seed); + return (float) *seed / 4294967295.0; +} + +int main() { + + if (!p_window_open(&win, 800, 600, "demo")) { + PFATAL("Failed to open a window!"); + return 1; + } + + // bindless setup + RendBindingInfo bind_info = {0}; + RendRenderer renderer = rend_renderer_create(&win, REND_BACKEND_AUTO, NULL, vsync, &bind_info); + + unsigned long particles_bytes = 0; + uint8_t *particles_shader = p_file_alloc("particle.spv", &particles_bytes); + + unsigned long sand_bytes = 0; + uint8_t *sand_shader = p_file_alloc("sand.spv", &sand_bytes); + + unsigned long vert_size = 0; + uint8_t *vert = p_file_alloc("vert.spv", &vert_size); + + unsigned long frag_size = 0; + uint8_t *frag = p_file_alloc("frag.spv", &frag_size); + + uint32_t seed = 0xC0FFEE; + + Particle *initial_particles = malloc(PARTICLE_COUNT * sizeof *initial_particles); + for (int i = 0; i < PARTICLE_COUNT; i++) { + initial_particles[i].pos[0] = cool_beans(&seed) * 2.0f - 1.0f; + initial_particles[i].pos[1] = cool_beans(&seed) * 2.0f - 1.0f; + initial_particles[i].vel[0] = cool_beans(&seed) * 0.4f - 0.2f; + initial_particles[i].vel[1] = cool_beans(&seed) * 0.4f - 0.2f; + } + + size_t buffer_size = PARTICLE_COUNT * sizeof(Particle); + RendBuffer particle_buf = rend_buffer_create(renderer, buffer_size, REND_BUFFER_STORAGE, true); + rend_buffer_write(renderer, &particle_buf, initial_particles, buffer_size, 0); + + size_t grid_buffer_size = GRID_WIDTH * GRID_HEIGHT * sizeof(uint32_t); + uint32_t *initial_grid = calloc(GRID_WIDTH * GRID_HEIGHT, sizeof(uint32_t)); + + for (int y = 0; y < 100; y++) { + for (int x = 150; x < 362; x++) { + initial_grid[y * GRID_WIDTH + x] = 1; // 1 = sand + } + } + + RendBuffer src_buf = rend_buffer_create(renderer, GRID_WIDTH * GRID_HEIGHT * sizeof(uint32_t), REND_BUFFER_STORAGE, false); + RendBuffer dst_buf = rend_buffer_create(renderer, GRID_WIDTH * GRID_HEIGHT * sizeof(uint32_t), REND_BUFFER_STORAGE, false); + rend_buffer_write(renderer, &src_buf, initial_grid, grid_buffer_size, 0); + rend_buffer_write(renderer, &dst_buf, initial_grid, grid_buffer_size, 0); + + uint64_t particles_address = rend_buffer_address(&particle_buf); + + RendBuffer *src_grid = &src_buf; + RendBuffer *dst_grid = &dst_buf; + + RendPushConstantInfo pc = { .offset = 0, .size = sizeof(PushConstants) }; + RendPipeline particle_compute = rend_pipeline_create_compute_spirv(renderer, particles_shader, particles_bytes, &pc, 1); + RendPipeline sand_compute = rend_pipeline_create_compute_spirv(renderer, sand_shader, sand_bytes, &pc, 1); + free(particles_shader); + free(sand_shader); + + RendPipeline graphics_pipeline = rend_pipeline_create_graphics_bindless_spirv(renderer, vert, vert_size, frag, frag_size, &pc, 1, REND_POLYGON_MODE_FILL, REND_CULL_MODE_NONE, REND_TOPOLOGY_TRIANGLE_LIST, 0, true); + + free(vert); + free(frag); + + float dt = 1.0f / 60.0f; + uint64_t dt_ns = (uint64_t) (dt * NANOS_PER_SEC); + + uint32_t mode = 2; + while (mode > 0) { + + uint64_t start = p_get_time(); + + P_Event ev; + while (p_window_poll_event(&win, &ev)) { + if (ev.type == P_EVENT_WINDOW_CLOSE) { + mode -= 1; + break; + } + } + + if (rend_renderer_frame_begin(renderer)) { + + PushConstants pc = {0}; + + if (mode == 2) { + /* + * Sand Simulation + */ + pc.delta_time = dt; + pc.width = GRID_WIDTH; + pc.height = GRID_HEIGHT; + pc.render_mode = 1; + pc.src_grid = src_grid->gpu_address; + pc.dst_grid = dst_grid->gpu_address; + + rend_pipeline_bind(sand_compute); + rend_pipeline_push_constants(sand_compute, &pc, sizeof(pc)); + + uint32_t x = (GRID_WIDTH + 15) / 16; + uint32_t y = (GRID_HEIGHT + 15) / 16; + rend_pipeline_dispatch(sand_compute, x, y, 1); + + RendBuffer *temp = src_grid; + src_grid = dst_grid; + dst_grid = temp; + + memset(src_grid->mapped_memory, 0, grid_buffer_size); + + } else { + /* + * Particles Simulation + */ + pc.particles = particles_address; + pc.delta_time = dt; + pc.particle_count = PARTICLE_COUNT; + pc.render_mode = 0; + + rend_pipeline_bind(particle_compute); + rend_pipeline_push_constants(particle_compute, &pc, sizeof(pc)); + rend_pipeline_dispatch(particle_compute, (PARTICLE_COUNT + 255) / 256, 1, 1); + } + + rend_renderer_render_pass_begin(renderer, 0.5f, 0.5f, 0.5f, 0.0f); { + rend_pipeline_bind(graphics_pipeline); + rend_pipeline_push_constants(graphics_pipeline, &pc, sizeof(pc)); + + uint32_t vertex_count = (mode == 2) ? (6 * GRID_WIDTH * GRID_HEIGHT) : (6 * PARTICLE_COUNT); + rend_pipeline_draw(graphics_pipeline, vertex_count, 1); + + } rend_renderer_render_pass_end(renderer); + + rend_renderer_frame_end(renderer, NULL); + } + + uint64_t delta_ns = p_get_time() - start; + if (delta_ns < dt_ns) { + p_sleep_ns(dt_ns - delta_ns); + } + } + + free(initial_particles); + free(initial_grid); + + rend_buffer_destroy(&particle_buf); + rend_buffer_destroy(&src_buf); + rend_buffer_destroy(&dst_buf); + + rend_renderer_destroy(renderer); + rend_quit(); + + p_window_close(&win); + +#if DEBUG_MEMORY + p_debug_memory_report(); +#endif + return 0; +} diff --git a/Rend/demos/rend_compute.slang b/Rend/demos/rend_compute.slang new file mode 100644 index 0000000..5fb124b --- /dev/null +++ b/Rend/demos/rend_compute.slang @@ -0,0 +1,146 @@ +struct Particle { + float2 position; + float2 velocity; +}; + +struct PushConstants { + Particle* particles; + uint* srcGrid; + uint* dstGrid; + uint particleCount; + uint width; + uint height; + float deltaTime; + uint renderMode; // 0 = particles, 1 = sand +}; + +struct VSOutput { + float4 position : SV_Position; + float4 color : COLOR0; +}; + +[[vk::push_constant]] +PushConstants pc; + +uint getIndex(uint x, uint y) { + return y * pc.width + x; +} + +bool isEmpty(uint x, uint y) { + if (x >= pc.width || y >= pc.height) return false; + return pc.srcGrid[getIndex(x, y)] == 0; +} + +[shader("compute")] +[numthreads(256, 1, 1)] +void particleMain(uint3 threadId : SV_DispatchThreadID) { + uint index = threadId.x; + if (index >= pc.particleCount) return; + + Particle p = pc.particles[index]; + + p.position += p.velocity * pc.deltaTime; + p.velocity *= exp(-0.005 * pc.deltaTime); + + pc.particles[index] = p; +} + +[shader("compute")] +[numthreads(16, 16, 1)] +void sandMain(uint3 threadId : SV_DispatchThreadID) { + uint x = threadId.x; + uint y = threadId.y; + + if (x >= pc.width || y >= pc.height) return; + + uint currentIdx = getIndex(x, y); + uint cellState = pc.srcGrid[currentIdx]; + + if (cellState == 1) { // Sand + if (y + 1 < pc.height && isEmpty(x, y + 1)) { + pc.dstGrid[getIndex(x, y + 1)] = 1; + pc.dstGrid[currentIdx] = 0; + return; + } + + bool fallLeftFirst = ((x + y) % 2) == 0; + int dir1 = fallLeftFirst ? -1 : 1; + int dir2 = fallLeftFirst ? 1 : -1; + + if (y + 1 < pc.height && isEmpty(x + dir1, y + 1)) { + pc.dstGrid[getIndex(x + dir1, y + 1)] = 1; + pc.dstGrid[currentIdx] = 0; + return; + } + else if (y + 1 < pc.height && isEmpty(x + dir2, y + 1)) { + pc.dstGrid[getIndex(x + dir2, y + 1)] = 1; + pc.dstGrid[currentIdx] = 0; + return; + } + + pc.dstGrid[currentIdx] = 1; + } +} + +static const float2 QUAD_OFFSETS[6] = { + float2(-0.5, -0.5), float2( 0.5, -0.5), float2(-0.5, 0.5), + float2(-0.5, 0.5), float2( 0.5, -0.5), float2( 0.5, 0.5) +}; + +float3 cosinePalette(float t, float3 a, float3 b, float3 c, float3 d) { + return a + b * cos(6.28318 * (c * t + d)); +} + +[shader("vertex")] +VSOutput vertMain(uint vertexID : SV_VertexID) { + VSOutput output; + + uint elementIdx = vertexID / 6; + uint cornerIdx = vertexID % 6; + + float2 worldPos = float2(0.0, 0.0); + float3 color = float3(0.0, 0.0, 0.0); + + if (pc.renderMode == 0) { + Particle p = pc.particles[elementIdx]; + worldPos = p.position; + + float speed = length(p.velocity); + color = cosinePalette( + speed * 0.8, + float3(0.5, 0.5, 0.5), + float3(0.5, 0.5, 0.5), + float3(1.0, 1.0, 1.0), + float3(0.0, 0.33, 0.67) + ); + } + + else { + uint x = elementIdx % pc.width; + uint y = elementIdx / pc.width; + + uint cellState = pc.srcGrid[elementIdx]; + + if (cellState == 0) { + output.position = float4(0, 0, 0, 0); + output.color = float4(0, 0, 0, 0); + return output; + } + + worldPos.x = ((float)x / (float)pc.width) * 2.0 - 1.0; + worldPos.y = ((float)y / (float)pc.height) * 2.0 - 1.0; + + color = float3(0.94, 0.82, 0.53); + } + + float2 quadOffset = QUAD_OFFSETS[cornerIdx] * 0.01; + output.position = float4(worldPos + quadOffset, 0.0, 1.0); + output.color = float4(color, 1.0); + + return output; +} + +[shader("fragment")] +float4 fragMain(VSOutput input) : SV_Target { + return input.color; +} diff --git a/Rend/demos/rend_teapot.c b/Rend/demos/rend_teapot.c new file mode 100644 index 0000000..63f96ee --- /dev/null +++ b/Rend/demos/rend_teapot.c @@ -0,0 +1,172 @@ + +#include "teapot.h" + +#include "../rend.h" +#include "../rend.c" +#include <stddef.h> + +#define PODIUM_IMPLEMENTATION +#define P_MODULE_MATH +#define P_MODULE_VULKAN +#include "podium.h" + +int main() { + + const char *texture_path = "wal.jpg"; + if (!p_file_exists(texture_path)) { + texture_path = "demos/wal.jpg"; + } + typedef struct CoolPushConstants { + P_Mat4 MVP; + } CoolPushConstants; + + typedef struct CoolVertex { + float pos[3]; + float uv[2]; + } CoolVertex; + + CoolVertex cool_array[TEAPOT_VERTEX_COUNT]; + + for (uint32_t i = 0; i < TEAPOT_VERTEX_COUNT; ++i) { + cool_array[i].pos[0] = teapot_positions[i][0]; + cool_array[i].pos[1] = teapot_positions[i][1]; + cool_array[i].pos[2] = teapot_positions[i][2]; + + float u = teapot_positions[i][0] / teapot_positions[i][2]; + float v = teapot_positions[i][1] / teapot_positions[i][2]; + + cool_array[i].uv[0] = u; + cool_array[i].uv[1] = v; + } + + size_t vert_size = TEAPOT_VERTEX_COUNT * sizeof *cool_array; + size_t ind_size = TEAPOT_INDEX_COUNT * sizeof *teapot_indices; + + RendBuffer vert_buf = rend_buffer_create(renderer, vert_size, REND_BUFFER_VERTEX, true); + RendBuffer ind_buf = rend_buffer_create(renderer, ind_size, REND_BUFFER_INDEX, true); + rend_buffer_write(renderer, &vert_buf, cool_array, vert_size, 0); + rend_buffer_write(renderer, &ind_buf, teapot_indices, ind_size, 0); + + int tex_w, tex_h, tex_channels; + unsigned char *pixels = stbi_load(texture_path, &tex_w, &tex_h, &tex_channels, 4); + RendTexture texture = rend_texture_create(renderer, tex_w, tex_h, 1, 0, 1, REND_FORMAT_R8G8B8A8_SRGB); + if (pixels) { + rend_texture_copy_data(renderer, &texture, pixels, (size_t)tex_w * tex_h * 4); + stbi_image_free(pixels); + } + + RendPipeline basic_pipeline = rend_pipeline_create_graphics_spirv( + renderer, + basic_vert, basic_vert_bytes, + basic_frag, basic_frag_bytes, + &(RendVertexBinding){ .binding = 0, .stride = sizeof(CoolVertex), .input_rate = REND_INPUT_RATE_VERTEX }, 1, + (RendVertexAttributes[]){ + { .binding = 0, .location = 0, .format = REND_FORMAT_3_SFLOAT32, .offset = offsetof(CoolVertex, pos) }, + { .binding = 0, .location = 1, .format = REND_FORMAT_2_SFLOAT32, .offset = offsetof(CoolVertex, uv) } + }, 2, + &(RendPushConstantInfo){ .offset = 0, .size = sizeof(CoolPushConstants) }, 1, + REND_POLYGON_MODE_FILL, + REND_CULL_MODE_NONE, + REND_TOPOLOGY_TRIANGLE_STRIP, + REND_FORMAT_UNDEFINED, + true + ); + + P_Mat4 view = p_mat4_translate((Vec3f){0.0f, 0.0f, -3.0f}); + P_Mat4 proj = p_mat4_perspective(P_PI_HALF, 800.0f / 600.0f, 0.1f, 100.0f); + proj.m[1 * 4 + 1] *= -1.0f; /* Vulkan clip space Y inversion fix */ + + bool running = true; + uint64_t frame_count = 0; + float angle = 0; + + bool pointer_down = false; + uint32_t last_pointer_x = 0; + uint32_t last_pointer_y = 0; + + uint16_t frames = 3; + while (running) { + + P_Event ev; + while (p_window_poll_event(win, &ev)) { + if (ev.type == P_EVENT_WINDOW_CLOSE) { + running = false; + break; + } + if (ev.type == P_EVENT_KEY_DOWN) { + switch (ev.key.key) { + case P_KEY_W: + view = p_mat4_translate_by(view, (Vec3f){0.0f, 0.0f, 0.1f}); + break; + case P_KEY_S: + view = p_mat4_translate_by(view, (Vec3f){0.0f, 0.0f, -0.1f}); + break; + case P_KEY_A: + view = p_mat4_translate_by(view, (Vec3f){0.1f, 0.0f, 0.0f}); + break; + case P_KEY_D: + view = p_mat4_translate_by(view, (Vec3f){-0.1f, 0.0f, 0.0f}); + break; + + } + break; + } + if (ev.type == P_EVENT_POINTER) { + if (ev.pointer.state == P_POINTER_PRESSED && ev.pointer.button == 1) { + pointer_down = true; + last_pointer_x = ev.pointer.x; + last_pointer_y = ev.pointer.y; + } else if (ev.pointer.state == P_POINTER_RELEASED && ev.pointer.button == 1) { + pointer_down = false; + } else if (ev.pointer.state == P_POINTER_MOVED) { + if (pointer_down) { + float dx = (float)((int)ev.pointer.x - (int)last_pointer_x); + float dy = (float)((int)ev.pointer.y - (int)last_pointer_y); + + float sensitivity = 0.005f; + float yaw = dx * sensitivity; + float pitch = dy * sensitivity; + + view = p_mat4_rotate_y_by(view, yaw); + view = p_mat4_mul(p_mat4_rotate_x(pitch), view); + + last_pointer_x = ev.pointer.x; + last_pointer_y = ev.pointer.y; + } + } + } + } + + angle += 0.05; + + P_Mat4 model = p_mat4_identity(); + model = p_mat4_rotate_y_by(model, angle * 0.5f); + + P_Mat4 mvp = p_mat4_mul(proj, p_mat4_mul(view, model)); + + CoolPushConstants pc = { + .MVP = mvp, + }; + + if (rend_renderer_frame_begin(renderer)) { + + rend_renderer_render_pass_begin(renderer, 0.5, 0.5, 0.5, 0.0); { + rend_pipeline_bind(basic_pipeline); + rend_pipeline_push_constants(basic_pipeline, &pc, sizeof pc); + rend_pipeline_bind_texture(basic_pipeline, &texture, 1, 0); + rend_pipeline_bind_vertex_buffer(basic_pipeline, 0, vert_buf, 0); + rend_pipeline_bind_index_buffer(basic_pipeline, ind_buf, 0, REND_INDEX_UINT16); + rend_pipeline_draw_indexed(basic_pipeline, TEAPOT_INDEX_COUNT, 0, 0, 1); + } rend_renderer_render_pass_end(renderer); + + rend_renderer_frame_end(renderer, NULL); + } + + } + + rend_texture_destroy(renderer, &texture); + rend_buffer_destroy(&vert_buf); + rend_buffer_destroy(&ind_buf); + + return 0; +} diff --git a/Rend/demos/teapot.h b/Rend/demos/teapot.h new file mode 100644 index 0000000..dfde9be --- /dev/null +++ b/Rend/demos/teapot.h @@ -0,0 +1,17273 @@ +#ifndef TEAPOT_H +#define TEAPOT_H + +#include <stdint.h> + +#define TEAPOT_VERTEX_COUNT 3644 +#define TEAPOT_INDEX_COUNT 18960 + +static const float teapot_positions[TEAPOT_VERTEX_COUNT][3] = { + {1.368074f, 2.435437f, -0.227403f}, + {1.381968f, 2.400000f, -0.229712f}, + {1.400000f, 2.400000f, 0.000000f}, + {1.385925f, 2.435437f, 0.000000f}, + {1.316296f, 2.435437f, -0.442166f}, + {1.329664f, 2.400000f, -0.446656f}, + {1.233252f, 2.435437f, -0.641628f}, + {1.245776f, 2.400000f, -0.648144f}, + {1.121601f, 2.435437f, -0.823129f}, + {1.132992f, 2.400000f, -0.831488f}, + {0.984007f, 2.435437f, -0.984007f}, + {0.994000f, 2.400000f, -0.994000f}, + {0.823129f, 2.435437f, -1.121601f}, + {0.831488f, 2.400000f, -1.132992f}, + {0.641628f, 2.435437f, -1.233252f}, + {0.648144f, 2.400000f, -1.245776f}, + {0.442166f, 2.435437f, -1.316296f}, + {0.446656f, 2.400000f, -1.329664f}, + {0.227403f, 2.435437f, -1.368074f}, + {0.229712f, 2.400000f, -1.381968f}, + {-0.000000f, 2.435437f, -1.385925f}, + {0.000000f, 2.400000f, -1.400000f}, + {1.362620f, 2.463000f, -0.226496f}, + {1.380400f, 2.463000f, 0.000000f}, + {1.311049f, 2.463000f, -0.440403f}, + {1.228335f, 2.463000f, -0.639070f}, + {1.117130f, 2.463000f, -0.819847f}, + {0.980084f, 2.463000f, -0.980084f}, + {0.819847f, 2.463000f, -1.117130f}, + {0.639070f, 2.463000f, -1.228335f}, + {0.440403f, 2.463000f, -1.311049f}, + {0.226496f, 2.463000f, -1.362620f}, + {-0.000000f, 2.463000f, -1.380400f}, + {1.364422f, 2.482687f, -0.226795f}, + {1.382225f, 2.482687f, 0.000000f}, + {1.312782f, 2.482687f, -0.440985f}, + {1.229959f, 2.482687f, -0.639915f}, + {1.118607f, 2.482687f, -0.820931f}, + {0.981380f, 2.482687f, -0.981380f}, + {0.820931f, 2.482687f, -1.118607f}, + {0.639915f, 2.482687f, -1.229959f}, + {0.440985f, 2.482687f, -1.312782f}, + {0.226795f, 2.482687f, -1.364422f}, + {0.000000f, 2.482687f, -1.382225f}, + {1.372294f, 2.494500f, -0.228104f}, + {1.390200f, 2.494500f, 0.000000f}, + {1.320356f, 2.494500f, -0.443529f}, + {1.237056f, 2.494500f, -0.643607f}, + {1.125061f, 2.494500f, -0.825668f}, + {0.987042f, 2.494500f, -0.987042f}, + {0.825668f, 2.494500f, -1.125061f}, + {0.643607f, 2.494500f, -1.237056f}, + {0.443529f, 2.494500f, -1.320356f}, + {0.228104f, 2.494500f, -1.372294f}, + {-0.000000f, 2.494500f, -1.390200f}, + {1.385053f, 2.498438f, -0.230225f}, + {1.403125f, 2.498438f, 0.000000f}, + {1.332632f, 2.498438f, -0.447653f}, + {1.248557f, 2.498438f, -0.649591f}, + {1.135521f, 2.498438f, -0.833344f}, + {0.996219f, 2.498438f, -0.996219f}, + {0.833344f, 2.498438f, -1.135521f}, + {0.649591f, 2.498438f, -1.248557f}, + {0.447653f, 2.498438f, -1.332632f}, + {0.230225f, 2.498438f, -1.385053f}, + {0.000000f, 2.498438f, -1.403125f}, + {1.401513f, 2.494500f, -0.232961f}, + {1.419800f, 2.494500f, 0.000000f}, + {1.348469f, 2.494500f, -0.452973f}, + {1.263395f, 2.494500f, -0.657311f}, + {1.149016f, 2.494500f, -0.843248f}, + {1.008058f, 2.494500f, -1.008058f}, + {0.843248f, 2.494500f, -1.149016f}, + {0.657311f, 2.494500f, -1.263395f}, + {0.452973f, 2.494500f, -1.348469f}, + {0.232961f, 2.494500f, -1.401513f}, + {-0.000000f, 2.494500f, -1.419800f}, + {1.420490f, 2.482687f, -0.236115f}, + {1.439025f, 2.482687f, 0.000000f}, + {1.366728f, 2.482687f, -0.459107f}, + {1.280502f, 2.482687f, -0.666211f}, + {1.164574f, 2.482687f, -0.854666f}, + {1.021708f, 2.482687f, -1.021708f}, + {0.854666f, 2.482687f, -1.164574f}, + {0.666211f, 2.482687f, -1.280502f}, + {0.459107f, 2.482687f, -1.366728f}, + {0.236115f, 2.482687f, -1.420490f}, + {0.000000f, 2.482687f, -1.439025f}, + {1.440800f, 2.463000f, -0.239491f}, + {1.459600f, 2.463000f, 0.000000f}, + {1.386270f, 2.463000f, -0.465671f}, + {1.298810f, 2.463000f, -0.675736f}, + {1.181225f, 2.463000f, -0.866886f}, + {1.036316f, 2.463000f, -1.036316f}, + {0.866886f, 2.463000f, -1.181225f}, + {0.675736f, 2.463000f, -1.298810f}, + {0.465671f, 2.463000f, -1.386270f}, + {0.239491f, 2.463000f, -1.440800f}, + {-0.000000f, 2.463000f, -1.459600f}, + {1.461258f, 2.435437f, -0.242892f}, + {1.480325f, 2.435437f, 0.000000f}, + {1.405953f, 2.435437f, -0.472283f}, + {1.317252f, 2.435437f, -0.685331f}, + {1.197997f, 2.435437f, -0.879195f}, + {1.051031f, 2.435437f, -1.051031f}, + {0.879195f, 2.435437f, -1.197997f}, + {0.685331f, 2.435437f, -1.317252f}, + {0.472283f, 2.435437f, -1.405953f}, + {0.242892f, 2.435437f, -1.461258f}, + {-0.000000f, 2.435437f, -1.480325f}, + {1.480680f, 2.400000f, -0.246120f}, + {1.500000f, 2.400000f, 0.000000f}, + {1.424640f, 2.400000f, -0.478560f}, + {1.334760f, 2.400000f, -0.694440f}, + {1.213920f, 2.400000f, -0.890880f}, + {1.065000f, 2.400000f, -1.065000f}, + {0.890880f, 2.400000f, -1.213920f}, + {0.694440f, 2.400000f, -1.334760f}, + {0.478560f, 2.400000f, -1.424640f}, + {0.246120f, 2.400000f, -1.480680f}, + {0.000000f, 2.400000f, -1.500000f}, + {-0.227403f, 2.435437f, -1.368074f}, + {-0.229712f, 2.400000f, -1.381968f}, + {0.000000f, 2.400000f, -1.400000f}, + {0.000000f, 2.435437f, -1.385925f}, + {-0.442166f, 2.435437f, -1.316296f}, + {-0.446656f, 2.400000f, -1.329664f}, + {-0.641628f, 2.435437f, -1.233252f}, + {-0.648144f, 2.400000f, -1.245776f}, + {-0.823129f, 2.435437f, -1.121601f}, + {-0.831488f, 2.400000f, -1.132992f}, + {-0.984007f, 2.435437f, -0.984007f}, + {-0.994000f, 2.400000f, -0.994000f}, + {-1.121601f, 2.435437f, -0.823129f}, + {-1.132992f, 2.400000f, -0.831488f}, + {-1.233252f, 2.435437f, -0.641628f}, + {-1.245776f, 2.400000f, -0.648144f}, + {-1.316296f, 2.435437f, -0.442166f}, + {-1.329664f, 2.400000f, -0.446656f}, + {-1.368074f, 2.435437f, -0.227403f}, + {-1.381968f, 2.400000f, -0.229712f}, + {-1.385925f, 2.435437f, 0.000000f}, + {-1.400000f, 2.400000f, 0.000000f}, + {-0.226496f, 2.463000f, -1.362620f}, + {0.000000f, 2.463000f, -1.380400f}, + {-0.440403f, 2.463000f, -1.311049f}, + {-0.639070f, 2.463000f, -1.228335f}, + {-0.819847f, 2.463000f, -1.117130f}, + {-0.980084f, 2.463000f, -0.980084f}, + {-1.117130f, 2.463000f, -0.819847f}, + {-1.228335f, 2.463000f, -0.639070f}, + {-1.311049f, 2.463000f, -0.440403f}, + {-1.362620f, 2.463000f, -0.226496f}, + {-1.380400f, 2.463000f, 0.000000f}, + {-0.226795f, 2.482687f, -1.364422f}, + {0.000000f, 2.482687f, -1.382225f}, + {-0.440985f, 2.482687f, -1.312782f}, + {-0.639915f, 2.482687f, -1.229959f}, + {-0.820931f, 2.482687f, -1.118607f}, + {-0.981380f, 2.482687f, -0.981380f}, + {-1.118607f, 2.482687f, -0.820931f}, + {-1.229959f, 2.482687f, 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1.219848f}, + {-0.594614f, 0.046875f, 1.142888f}, + {-0.762816f, 0.046875f, 1.039419f}, + {-0.911906f, 0.046875f, 0.911906f}, + {-1.039419f, 0.046875f, 0.762816f}, + {-1.142888f, 0.046875f, 0.594614f}, + {-1.219848f, 0.046875f, 0.409767f}, + {-1.267832f, 0.046875f, 0.210740f}, + {-1.284375f, 0.046875f, 0.000000f}, + {-0.226824f, 0.064800f, 1.364595f}, + {0.000000f, 0.064800f, 1.382400f}, + {-0.441041f, 0.064800f, 1.312948f}, + {-0.639996f, 0.064800f, 1.230115f}, + {-0.821035f, 0.064800f, 1.118749f}, + {-0.981504f, 0.064800f, 0.981504f}, + {-1.118749f, 0.064800f, 0.821035f}, + {-1.230115f, 0.064800f, 0.639996f}, + {-1.312948f, 0.064800f, 0.441041f}, + {-1.364595f, 0.064800f, 0.226824f}, + {-1.382400f, 0.064800f, -0.000000f}, + {-0.237149f, 0.084525f, 1.426709f}, + {0.000000f, 0.084525f, 1.445325f}, + {-0.461116f, 0.084525f, 1.372712f}, + {-0.669128f, 0.084525f, 1.286108f}, + {-0.858407f, 0.084525f, 1.169673f}, + {-1.026181f, 0.084525f, 1.026181f}, + {-1.169673f, 0.084525f, 0.858407f}, + {-1.286108f, 0.084525f, 0.669128f}, + {-1.372712f, 0.084525f, 0.461116f}, + {-1.426709f, 0.084525f, 0.237149f}, + {-1.445325f, 0.084525f, 0.000000f}, + {-0.242970f, 0.105600f, 1.461727f}, + {0.000000f, 0.105600f, 1.480800f}, + {-0.472434f, 0.105600f, 1.406405f}, + {-0.685551f, 0.105600f, 1.317675f}, + {-0.879477f, 0.105600f, 1.198382f}, + {-1.051368f, 0.105600f, 1.051368f}, + {-1.198382f, 0.105600f, 0.879477f}, + {-1.317675f, 0.105600f, 0.685551f}, + {-1.406405f, 0.105600f, 0.472434f}, + {-1.461727f, 0.105600f, 0.242970f}, + {-1.480800f, 0.105600f, -0.000000f}, + {-0.245542f, 0.127575f, 1.477200f}, + {0.000000f, 0.127575f, 1.496475f}, + {-0.477435f, 0.127575f, 1.421292f}, + {-0.692808f, 0.127575f, 1.331623f}, + {-0.888786f, 0.127575f, 1.211067f}, + {-1.062497f, 0.127575f, 1.062497f}, + {-1.211067f, 0.127575f, 0.888786f}, + {-1.331623f, 0.127575f, 0.692808f}, + {-1.421292f, 0.127575f, 0.477435f}, + {-1.477200f, 0.127575f, 0.245542f}, + {-1.496475f, 0.127575f, -0.000000f}, + {-0.246120f, 0.150000f, 1.480680f}, + {-0.478560f, 0.150000f, 1.424640f}, + {-0.694440f, 0.150000f, 1.334760f}, + {-0.890880f, 0.150000f, 1.213920f}, + {-1.213920f, 0.150000f, 0.890880f}, + {-1.334760f, 0.150000f, 0.694440f}, + {-1.424640f, 0.150000f, 0.478560f}, + {-1.480680f, 0.150000f, 0.246120f}, + {-0.388275f, 0.002175f, 0.000000f}, + {-0.383274f, 0.002175f, -0.063708f}, + {-0.368768f, 0.002175f, -0.123875f}, + {-0.345503f, 0.002175f, -0.179756f}, + {-0.314223f, 0.002175f, -0.230604f}, + {-0.275675f, 0.002175f, -0.275675f}, + {-0.230604f, 0.002175f, -0.314223f}, + {-0.179756f, 0.002175f, -0.345503f}, + {-0.123875f, 0.002175f, -0.368768f}, + {-0.063708f, 0.002175f, -0.383274f}, + {0.000000f, 0.002175f, -0.388275f}, + {-0.694143f, 0.008400f, -0.115381f}, + {-0.667871f, 0.008400f, -0.224349f}, + {-0.625735f, 0.008400f, -0.325553f}, + {-0.569086f, 0.008400f, -0.417645f}, + {-0.499272f, 0.008400f, -0.499272f}, + {-0.417645f, 0.008400f, -0.569086f}, + {-0.325553f, 0.008400f, -0.625735f}, + {-0.224349f, 0.008400f, -0.667871f}, + {-0.115381f, 0.008400f, -0.694143f}, + {0.000000f, 0.008400f, -0.703200f}, + {-0.940158f, 0.018225f, -0.156274f}, + {-0.952425f, 0.018225f, 0.000000f}, + {-0.904575f, 0.018225f, -0.303862f}, + {-0.847506f, 0.018225f, -0.440935f}, + {-0.770779f, 0.018225f, -0.565664f}, + {-0.676222f, 0.018225f, -0.676222f}, + {-0.565664f, 0.018225f, -0.770779f}, + {-0.440935f, 0.018225f, -0.847506f}, + {-0.303862f, 0.018225f, -0.904575f}, + {-0.156274f, 0.018225f, -0.940158f}, + {0.000000f, 0.018225f, -0.952425f}, + {-1.128870f, 0.031200f, -0.187642f}, + {-1.143600f, 0.031200f, 0.000000f}, + {-1.086146f, 0.031200f, -0.364854f}, + {-1.017621f, 0.031200f, -0.529441f}, + {-0.925493f, 0.031200f, -0.679207f}, + {-0.811956f, 0.031200f, -0.811956f}, + {-0.679207f, 0.031200f, -0.925493f}, + {-0.529441f, 0.031200f, -1.017621f}, + {-0.364854f, 0.031200f, -1.086146f}, + {-0.187642f, 0.031200f, -1.128870f}, + {0.000000f, 0.031200f, -1.143600f}, + {-1.267832f, 0.046875f, -0.210740f}, + {-1.284375f, 0.046875f, 0.000000f}, + {-1.219848f, 0.046875f, -0.409767f}, + {-1.142888f, 0.046875f, -0.594614f}, + {-1.039419f, 0.046875f, -0.762816f}, + {-0.911906f, 0.046875f, -0.911906f}, + {-0.762816f, 0.046875f, -1.039419f}, + {-0.594614f, 0.046875f, -1.142888f}, + {-0.409767f, 0.046875f, -1.219848f}, + {-0.210740f, 0.046875f, -1.267832f}, + {-0.000000f, 0.046875f, -1.284375f}, + {-1.364595f, 0.064800f, -0.226824f}, + {-1.382400f, 0.064800f, 0.000000f}, + {-1.312948f, 0.064800f, -0.441041f}, + {-1.230115f, 0.064800f, -0.639996f}, + {-1.118749f, 0.064800f, -0.821035f}, + {-0.981504f, 0.064800f, -0.981504f}, + {-0.821035f, 0.064800f, -1.118749f}, + {-0.639996f, 0.064800f, -1.230115f}, + {-0.441041f, 0.064800f, -1.312948f}, + {-0.226824f, 0.064800f, -1.364595f}, + {0.000000f, 0.064800f, -1.382400f}, + {-1.426709f, 0.084525f, -0.237149f}, + {-1.445325f, 0.084525f, 0.000000f}, + {-1.372712f, 0.084525f, -0.461116f}, + {-1.286108f, 0.084525f, -0.669128f}, + {-1.169673f, 0.084525f, -0.858407f}, + {-1.026181f, 0.084525f, -1.026181f}, + {-0.858407f, 0.084525f, -1.169673f}, + {-0.669128f, 0.084525f, -1.286108f}, + {-0.461116f, 0.084525f, -1.372712f}, + {-0.237149f, 0.084525f, -1.426709f}, + {0.000000f, 0.084525f, -1.445325f}, + {-1.461727f, 0.105600f, -0.242970f}, + {-1.480800f, 0.105600f, 0.000000f}, + {-1.406405f, 0.105600f, -0.472434f}, + {-1.317675f, 0.105600f, -0.685551f}, + {-1.198382f, 0.105600f, -0.879477f}, + {-1.051368f, 0.105600f, -1.051368f}, + {-0.879477f, 0.105600f, -1.198382f}, + {-0.685551f, 0.105600f, -1.317675f}, + {-0.472434f, 0.105600f, -1.406405f}, + {-0.242970f, 0.105600f, -1.461727f}, + {0.000000f, 0.105600f, -1.480800f}, + {-1.477200f, 0.127575f, -0.245542f}, + {-1.496475f, 0.127575f, 0.000000f}, + {-1.421292f, 0.127575f, -0.477435f}, + {-1.331623f, 0.127575f, -0.692808f}, + {-1.211067f, 0.127575f, -0.888786f}, + {-1.062497f, 0.127575f, -1.062497f}, + {-0.888786f, 0.127575f, -1.211067f}, + {-0.692808f, 0.127575f, -1.331623f}, + {-0.477435f, 0.127575f, -1.421292f}, + {-0.245542f, 0.127575f, -1.477200f}, + {0.000000f, 0.127575f, -1.496475f}, + {-1.480680f, 0.150000f, -0.246120f}, + {-1.424640f, 0.150000f, -0.478560f}, + {-1.334760f, 0.150000f, -0.694440f}, + {-1.213920f, 0.150000f, -0.890880f}, + {-0.890880f, 0.150000f, -1.213920f}, + {-0.694440f, 0.150000f, -1.334760f}, + {-0.478560f, 0.150000f, -1.424640f}, + {-0.246120f, 0.150000f, -1.480680f}, + {0.000000f, 0.002175f, -0.388275f}, + {0.063708f, 0.002175f, -0.383274f}, + {0.123875f, 0.002175f, -0.368768f}, + {0.179756f, 0.002175f, -0.345503f}, + {0.230604f, 0.002175f, -0.314223f}, + {0.275675f, 0.002175f, -0.275675f}, + {0.314223f, 0.002175f, -0.230604f}, + {0.345503f, 0.002175f, -0.179756f}, + {0.368768f, 0.002175f, -0.123875f}, + {0.383274f, 0.002175f, -0.063708f}, + {0.388275f, 0.002175f, 0.000000f}, + {0.115381f, 0.008400f, -0.694143f}, + {0.224349f, 0.008400f, -0.667871f}, + {0.325553f, 0.008400f, -0.625735f}, + {0.417645f, 0.008400f, -0.569086f}, + {0.499272f, 0.008400f, -0.499272f}, + {0.569086f, 0.008400f, -0.417645f}, + {0.625735f, 0.008400f, -0.325553f}, + {0.667871f, 0.008400f, -0.224349f}, + {0.694143f, 0.008400f, -0.115381f}, + {0.156274f, 0.018225f, -0.940158f}, + {0.000000f, 0.018225f, -0.952425f}, + {0.303862f, 0.018225f, -0.904575f}, + {0.440935f, 0.018225f, -0.847506f}, + {0.565664f, 0.018225f, -0.770779f}, + {0.676222f, 0.018225f, -0.676222f}, + {0.770779f, 0.018225f, -0.565664f}, + {0.847506f, 0.018225f, -0.440935f}, + {0.904575f, 0.018225f, -0.303862f}, + {0.940158f, 0.018225f, -0.156274f}, + {0.952425f, 0.018225f, 0.000000f}, + {0.187642f, 0.031200f, -1.128870f}, + {0.000000f, 0.031200f, -1.143600f}, + {0.364854f, 0.031200f, -1.086146f}, + {0.529441f, 0.031200f, -1.017621f}, + {0.679207f, 0.031200f, -0.925493f}, + {0.811956f, 0.031200f, -0.811956f}, + {0.925493f, 0.031200f, -0.679207f}, + {1.017621f, 0.031200f, -0.529441f}, + {1.086146f, 0.031200f, -0.364854f}, + {1.128870f, 0.031200f, -0.187642f}, + {1.143600f, 0.031200f, 0.000000f}, + {0.210740f, 0.046875f, -1.267832f}, + {0.000000f, 0.046875f, -1.284375f}, + {0.409767f, 0.046875f, -1.219848f}, + {0.594614f, 0.046875f, -1.142888f}, + {0.762816f, 0.046875f, -1.039419f}, + {0.911906f, 0.046875f, -0.911906f}, + {1.039419f, 0.046875f, -0.762816f}, + {1.142888f, 0.046875f, -0.594614f}, + {1.219848f, 0.046875f, -0.409767f}, + {1.267832f, 0.046875f, -0.210740f}, + {1.284375f, 0.046875f, -0.000000f}, + {0.226824f, 0.064800f, -1.364595f}, + {0.000000f, 0.064800f, -1.382400f}, + {0.441041f, 0.064800f, -1.312948f}, + {0.639996f, 0.064800f, -1.230115f}, + {0.821035f, 0.064800f, -1.118749f}, + {0.981504f, 0.064800f, -0.981504f}, + {1.118749f, 0.064800f, -0.821035f}, + {1.230115f, 0.064800f, -0.639996f}, + {1.312948f, 0.064800f, -0.441041f}, + {1.364595f, 0.064800f, -0.226824f}, + {1.382400f, 0.064800f, 0.000000f}, + {0.237149f, 0.084525f, -1.426709f}, + {0.000000f, 0.084525f, -1.445325f}, + {0.461116f, 0.084525f, -1.372712f}, + {0.669128f, 0.084525f, -1.286108f}, + {0.858407f, 0.084525f, -1.169673f}, + {1.026181f, 0.084525f, -1.026181f}, + {1.169673f, 0.084525f, -0.858407f}, + {1.286108f, 0.084525f, -0.669128f}, + {1.372712f, 0.084525f, -0.461116f}, + {1.426709f, 0.084525f, -0.237149f}, + {1.445325f, 0.084525f, 0.000000f}, + {0.242970f, 0.105600f, -1.461727f}, + {0.000000f, 0.105600f, -1.480800f}, + {0.472434f, 0.105600f, -1.406405f}, + {0.685551f, 0.105600f, -1.317675f}, + {0.879477f, 0.105600f, -1.198382f}, + {1.051368f, 0.105600f, -1.051368f}, + {1.198382f, 0.105600f, -0.879477f}, + {1.317675f, 0.105600f, -0.685551f}, + {1.406405f, 0.105600f, -0.472434f}, + {1.461727f, 0.105600f, -0.242970f}, + {1.480800f, 0.105600f, 0.000000f}, + {0.245542f, 0.127575f, -1.477200f}, + {0.000000f, 0.127575f, -1.496475f}, + {0.477435f, 0.127575f, -1.421292f}, + {0.692808f, 0.127575f, -1.331623f}, + {0.888786f, 0.127575f, -1.211067f}, + {1.062497f, 0.127575f, -1.062497f}, + {1.211067f, 0.127575f, -0.888786f}, + {1.331623f, 0.127575f, -0.692808f}, + 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0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, + {0.000000f, 0.000000f, 0.000000f}, +}; + +static const uint16_t teapot_indices[TEAPOT_INDEX_COUNT] = { + 0, 1, 2, + 2, 3, 0, + 4, 5, 1, + 1, 0, 4, + 6, 7, 5, + 5, 4, 6, + 8, 9, 7, + 7, 6, 8, + 10, 11, 9, + 9, 8, 10, + 12, 13, 11, + 11, 10, 12, + 14, 15, 13, + 13, 12, 14, + 16, 17, 15, + 15, 14, 16, + 18, 19, 17, + 17, 16, 18, + 20, 21, 19, + 19, 18, 20, + 22, 0, 3, + 3, 23, 22, + 24, 4, 0, + 0, 22, 24, + 25, 6, 4, + 4, 24, 25, + 26, 8, 6, + 6, 25, 26, + 27, 10, 8, + 8, 26, 27, + 28, 12, 10, + 10, 27, 28, + 29, 14, 12, + 12, 28, 29, + 30, 16, 14, + 14, 29, 30, + 31, 18, 16, + 16, 30, 31, + 32, 20, 18, + 18, 31, 32, + 33, 22, 23, + 23, 34, 33, + 35, 24, 22, + 22, 33, 35, + 36, 25, 24, + 24, 35, 36, + 37, 26, 25, + 25, 36, 37, + 38, 27, 26, + 26, 37, 38, + 39, 28, 27, + 27, 38, 39, + 40, 29, 28, + 28, 39, 40, + 41, 30, 29, + 29, 40, 41, + 42, 31, 30, + 30, 41, 42, + 43, 32, 31, + 31, 42, 43, + 44, 33, 34, + 34, 45, 44, + 46, 35, 33, + 33, 44, 46, + 47, 36, 35, + 35, 46, 47, + 48, 37, 36, + 36, 47, 48, + 49, 38, 37, + 37, 48, 49, + 50, 39, 38, + 38, 49, 50, + 51, 40, 39, + 39, 50, 51, + 52, 41, 40, + 40, 51, 52, + 53, 42, 41, + 41, 52, 53, + 54, 43, 42, + 42, 53, 54, + 55, 44, 45, + 45, 56, 55, + 57, 46, 44, + 44, 55, 57, + 58, 47, 46, + 46, 57, 58, + 59, 48, 47, + 47, 58, 59, + 60, 49, 48, + 48, 59, 60, + 61, 50, 49, + 49, 60, 61, + 62, 51, 50, + 50, 61, 62, + 63, 52, 51, + 51, 62, 63, + 64, 53, 52, + 52, 63, 64, + 65, 54, 53, + 53, 64, 65, + 66, 55, 56, + 56, 67, 66, + 68, 57, 55, + 55, 66, 68, + 69, 58, 57, + 57, 68, 69, + 70, 59, 58, + 58, 69, 70, + 71, 60, 59, + 59, 70, 71, + 72, 61, 60, + 60, 71, 72, + 73, 62, 61, + 61, 72, 73, + 74, 63, 62, + 62, 73, 74, + 75, 64, 63, + 63, 74, 75, + 76, 65, 64, + 64, 75, 76, + 77, 66, 67, + 67, 78, 77, + 79, 68, 66, + 66, 77, 79, + 80, 69, 68, + 68, 79, 80, + 81, 70, 69, + 69, 80, 81, + 82, 71, 70, + 70, 81, 82, + 83, 72, 71, + 71, 82, 83, + 84, 73, 72, + 72, 83, 84, + 85, 74, 73, + 73, 84, 85, + 86, 75, 74, + 74, 85, 86, + 87, 76, 75, + 75, 86, 87, + 88, 77, 78, + 78, 89, 88, + 90, 79, 77, + 77, 88, 90, + 91, 80, 79, + 79, 90, 91, + 92, 81, 80, + 80, 91, 92, + 93, 82, 81, + 81, 92, 93, + 94, 83, 82, + 82, 93, 94, + 95, 84, 83, + 83, 94, 95, + 96, 85, 84, + 84, 95, 96, + 97, 86, 85, + 85, 96, 97, + 98, 87, 86, + 86, 97, 98, + 99, 88, 89, + 89, 100, 99, + 101, 90, 88, + 88, 99, 101, + 102, 91, 90, + 90, 101, 102, + 103, 92, 91, + 91, 102, 103, + 104, 93, 92, + 92, 103, 104, + 105, 94, 93, + 93, 104, 105, + 106, 95, 94, + 94, 105, 106, + 107, 96, 95, + 95, 106, 107, + 108, 97, 96, + 96, 107, 108, + 109, 98, 97, + 97, 108, 109, + 110, 99, 100, + 100, 111, 110, + 112, 101, 99, + 99, 110, 112, + 113, 102, 101, + 101, 112, 113, + 114, 103, 102, + 102, 113, 114, + 115, 104, 103, + 103, 114, 115, + 116, 105, 104, + 104, 115, 116, + 117, 106, 105, + 105, 116, 117, + 118, 107, 106, + 106, 117, 118, + 119, 108, 107, + 107, 118, 119, + 120, 109, 108, + 108, 119, 120, + 121, 122, 123, + 123, 124, 121, + 125, 126, 122, + 122, 121, 125, + 127, 128, 126, + 126, 125, 127, + 129, 130, 128, + 128, 127, 129, + 131, 132, 130, + 130, 129, 131, + 133, 134, 132, + 132, 131, 133, + 135, 136, 134, + 134, 133, 135, + 137, 138, 136, + 136, 135, 137, + 139, 140, 138, + 138, 137, 139, + 141, 142, 140, + 140, 139, 141, + 143, 121, 124, + 124, 144, 143, + 145, 125, 121, + 121, 143, 145, + 146, 127, 125, + 125, 145, 146, + 147, 129, 127, + 127, 146, 147, + 148, 131, 129, + 129, 147, 148, + 149, 133, 131, + 131, 148, 149, + 150, 135, 133, + 133, 149, 150, + 151, 137, 135, + 135, 150, 151, + 152, 139, 137, + 137, 151, 152, + 153, 141, 139, + 139, 152, 153, + 154, 143, 144, + 144, 155, 154, + 156, 145, 143, + 143, 154, 156, + 157, 146, 145, + 145, 156, 157, + 158, 147, 146, + 146, 157, 158, + 159, 148, 147, + 147, 158, 159, + 160, 149, 148, + 148, 159, 160, + 161, 150, 149, + 149, 160, 161, + 162, 151, 150, + 150, 161, 162, + 163, 152, 151, + 151, 162, 163, + 164, 153, 152, + 152, 163, 164, + 165, 154, 155, + 155, 166, 165, + 167, 156, 154, + 154, 165, 167, + 168, 157, 156, + 156, 167, 168, + 169, 158, 157, + 157, 168, 169, + 170, 159, 158, + 158, 169, 170, + 171, 160, 159, + 159, 170, 171, + 172, 161, 160, + 160, 171, 172, + 173, 162, 161, + 161, 172, 173, + 174, 163, 162, + 162, 173, 174, + 175, 164, 163, + 163, 174, 175, + 176, 165, 166, + 166, 177, 176, + 178, 167, 165, + 165, 176, 178, + 179, 168, 167, + 167, 178, 179, + 180, 169, 168, + 168, 179, 180, + 181, 170, 169, + 169, 180, 181, + 182, 171, 170, + 170, 181, 182, + 183, 172, 171, + 171, 182, 183, + 184, 173, 172, + 172, 183, 184, + 185, 174, 173, + 173, 184, 185, + 186, 175, 174, + 174, 185, 186, + 187, 176, 177, + 177, 188, 187, + 189, 178, 176, + 176, 187, 189, + 190, 179, 178, + 178, 189, 190, + 191, 180, 179, + 179, 190, 191, + 192, 181, 180, + 180, 191, 192, + 193, 182, 181, + 181, 192, 193, + 194, 183, 182, + 182, 193, 194, + 195, 184, 183, + 183, 194, 195, + 196, 185, 184, + 184, 195, 196, + 197, 186, 185, + 185, 196, 197, + 198, 187, 188, + 188, 87, 198, + 199, 189, 187, + 187, 198, 199, + 200, 190, 189, + 189, 199, 200, + 201, 191, 190, + 190, 200, 201, + 202, 192, 191, + 191, 201, 202, + 203, 193, 192, + 192, 202, 203, + 204, 194, 193, + 193, 203, 204, + 205, 195, 194, + 194, 204, 205, + 206, 196, 195, + 195, 205, 206, + 207, 197, 196, + 196, 206, 207, + 208, 198, 87, + 87, 209, 208, + 210, 199, 198, + 198, 208, 210, + 211, 200, 199, + 199, 210, 211, + 212, 201, 200, + 200, 211, 212, + 213, 202, 201, + 201, 212, 213, + 214, 203, 202, + 202, 213, 214, + 215, 204, 203, + 203, 214, 215, + 216, 205, 204, + 204, 215, 216, + 217, 206, 205, + 205, 216, 217, + 218, 207, 206, + 206, 217, 218, + 219, 208, 209, + 209, 220, 219, + 221, 210, 208, + 208, 219, 221, + 222, 211, 210, + 210, 221, 222, + 223, 212, 211, + 211, 222, 223, + 224, 213, 212, + 212, 223, 224, + 225, 214, 213, + 213, 224, 225, + 226, 215, 214, + 214, 225, 226, + 227, 216, 215, + 215, 226, 227, + 228, 217, 216, + 216, 227, 228, + 229, 218, 217, + 217, 228, 229, + 230, 219, 220, + 220, 231, 230, + 232, 221, 219, + 219, 230, 232, + 233, 222, 221, + 221, 232, 233, + 234, 223, 222, + 222, 233, 234, + 235, 224, 223, + 223, 234, 235, + 236, 225, 224, + 224, 235, 236, + 237, 226, 225, + 225, 236, 237, + 238, 227, 226, + 226, 237, 238, + 239, 228, 227, + 227, 238, 239, + 240, 229, 228, + 228, 239, 240, + 241, 242, 243, + 243, 244, 241, + 245, 246, 242, + 242, 241, 245, + 247, 248, 246, + 246, 245, 247, + 249, 250, 248, + 248, 247, 249, + 251, 252, 250, + 250, 249, 251, + 253, 254, 252, + 252, 251, 253, + 255, 256, 254, + 254, 253, 255, + 257, 258, 256, + 256, 255, 257, + 259, 260, 258, + 258, 257, 259, + 261, 262, 260, + 260, 259, 261, + 263, 241, 244, + 244, 264, 263, + 265, 245, 241, + 241, 263, 265, + 266, 247, 245, + 245, 265, 266, + 267, 249, 247, + 247, 266, 267, + 268, 251, 249, + 249, 267, 268, + 269, 253, 251, + 251, 268, 269, + 270, 255, 253, + 253, 269, 270, + 271, 257, 255, + 255, 270, 271, + 272, 259, 257, + 257, 271, 272, + 273, 261, 259, + 259, 272, 273, + 274, 263, 264, + 264, 275, 274, + 276, 265, 263, + 263, 274, 276, + 277, 266, 265, + 265, 276, 277, + 278, 267, 266, + 266, 277, 278, + 279, 268, 267, + 267, 278, 279, + 280, 269, 268, + 268, 279, 280, + 281, 270, 269, + 269, 280, 281, + 282, 271, 270, + 270, 281, 282, + 283, 272, 271, + 271, 282, 283, + 284, 273, 272, + 272, 283, 284, + 285, 274, 275, + 275, 286, 285, + 287, 276, 274, + 274, 285, 287, + 288, 277, 276, + 276, 287, 288, + 289, 278, 277, + 277, 288, 289, + 290, 279, 278, + 278, 289, 290, + 291, 280, 279, + 279, 290, 291, + 292, 281, 280, + 280, 291, 292, + 293, 282, 281, + 281, 292, 293, + 294, 283, 282, + 282, 293, 294, + 295, 284, 283, + 283, 294, 295, + 296, 285, 286, + 286, 297, 296, + 298, 287, 285, + 285, 296, 298, + 299, 288, 287, + 287, 298, 299, + 300, 289, 288, + 288, 299, 300, + 301, 290, 289, + 289, 300, 301, + 302, 291, 290, + 290, 301, 302, + 303, 292, 291, + 291, 302, 303, + 304, 293, 292, + 292, 303, 304, + 305, 294, 293, + 293, 304, 305, + 306, 295, 294, + 294, 305, 306, + 307, 296, 297, + 297, 308, 307, + 309, 298, 296, + 296, 307, 309, + 310, 299, 298, + 298, 309, 310, + 311, 300, 299, + 299, 310, 311, + 312, 301, 300, + 300, 311, 312, + 313, 302, 301, + 301, 312, 313, + 314, 303, 302, + 302, 313, 314, + 315, 304, 303, + 303, 314, 315, + 316, 305, 304, + 304, 315, 316, + 317, 306, 305, + 305, 316, 317, + 318, 307, 308, + 308, 207, 318, + 319, 309, 307, + 307, 318, 319, + 320, 310, 309, + 309, 319, 320, + 321, 311, 310, + 310, 320, 321, + 322, 312, 311, + 311, 321, 322, + 323, 313, 312, + 312, 322, 323, + 324, 314, 313, + 313, 323, 324, + 325, 315, 314, + 314, 324, 325, + 326, 316, 315, + 315, 325, 326, + 327, 317, 316, + 316, 326, 327, + 328, 318, 207, + 207, 329, 328, + 330, 319, 318, + 318, 328, 330, + 331, 320, 319, + 319, 330, 331, + 332, 321, 320, + 320, 331, 332, + 333, 322, 321, + 321, 332, 333, + 334, 323, 322, + 322, 333, 334, + 335, 324, 323, + 323, 334, 335, + 336, 325, 324, + 324, 335, 336, + 337, 326, 325, + 325, 336, 337, + 338, 327, 326, + 326, 337, 338, + 339, 328, 329, + 329, 340, 339, + 341, 330, 328, + 328, 339, 341, + 342, 331, 330, + 330, 341, 342, + 343, 332, 331, + 331, 342, 343, + 344, 333, 332, + 332, 343, 344, + 345, 334, 333, + 333, 344, 345, + 346, 335, 334, + 334, 345, 346, + 347, 336, 335, + 335, 346, 347, + 348, 337, 336, + 336, 347, 348, + 349, 338, 337, + 337, 348, 349, + 350, 339, 340, + 340, 351, 350, + 352, 341, 339, + 339, 350, 352, + 353, 342, 341, + 341, 352, 353, + 354, 343, 342, + 342, 353, 354, + 355, 344, 343, + 343, 354, 355, + 356, 345, 344, + 344, 355, 356, + 357, 346, 345, + 345, 356, 357, + 358, 347, 346, + 346, 357, 358, + 359, 348, 347, + 347, 358, 359, + 360, 349, 348, + 348, 359, 360, + 361, 362, 363, + 363, 364, 361, + 365, 366, 362, + 362, 361, 365, + 367, 368, 366, + 366, 365, 367, + 369, 370, 368, + 368, 367, 369, + 371, 372, 370, + 370, 369, 371, + 373, 374, 372, + 372, 371, 373, + 375, 376, 374, + 374, 373, 375, + 377, 378, 376, + 376, 375, 377, + 379, 380, 378, + 378, 377, 379, + 381, 382, 380, + 380, 379, 381, + 383, 361, 364, + 364, 384, 383, + 385, 365, 361, + 361, 383, 385, + 386, 367, 365, + 365, 385, 386, + 387, 369, 367, + 367, 386, 387, + 388, 371, 369, + 369, 387, 388, + 389, 373, 371, + 371, 388, 389, + 390, 375, 373, + 373, 389, 390, + 391, 377, 375, + 375, 390, 391, + 392, 379, 377, + 377, 391, 392, + 393, 381, 379, + 379, 392, 393, + 394, 383, 384, + 384, 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mul(pc.ubo, float4(input.inPosition, 1.0)); + output.color = input.inPosition; + output.uv = input.uv; + return output; +} + +[shader("fragment")] +float4 fragMain(VSOutput vertIn) : SV_TARGET { + float4 col = test[0].Sample(vertIn.uv); + return float4(col.rgb, 1.0); +} diff --git a/Rend/demos/teapot/shaders/texture.slang b/Rend/demos/teapot/shaders/texture.slang new file mode 100644 index 0000000..0210b66 --- /dev/null +++ b/Rend/demos/teapot/shaders/texture.slang @@ -0,0 +1,28 @@ +struct VSInput { + [[vk::location(0)]] float3 pos : POSITION; + [[vk::location(1)]] float2 uv : TEXCOORD0; + [[vk::location(2)]] float2 offset; +}; + +struct VSOutput { + float4 pos : SV_Position; + float2 uv; +}; + +[[vk::binding(0, 0)]] ConstantBuffer<float4x4> ubos[3]; +[[vk::binding(1, 0)]] Sampler2D test[3]; + +[shader("vertex")] +VSOutput vertMain(VSInput input) { + VSOutput output; + output.pos = float4(input.pos, 1.0); + output.pos.x -= input.offset.x; + output.pos.y -= input.offset.y; + output.uv = input.uv; + return output; +} + +[shader("fragment")] +float4 fragMain(VSOutput vertIn) : SV_TARGET { + return test[0].Sample(vertIn.uv); +} diff --git a/Rend/demos/teapot/stb_image.h b/Rend/demos/teapot/stb_image.h new file mode 100644 index 0000000..9eedabe --- /dev/null +++ b/Rend/demos/teapot/stb_image.h @@ -0,0 +1,7988 @@ +/* stb_image - v2.30 - public domain image loader - http://nothings.org/stb + no warranty implied; use at your own risk + + Do this: + #define STB_IMAGE_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + // i.e. it should look like this: + #include ... + #include ... + #include ... + #define STB_IMAGE_IMPLEMENTATION + #include "stb_image.h" + + You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. + And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free + + + QUICK NOTES: + Primarily of interest to game developers and other people who can + avoid problematic images and only need the trivial interface + + JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) + PNG 1/2/4/8/16-bit-per-channel + + TGA (not sure what subset, if a subset) + BMP non-1bpp, non-RLE + PSD (composited view only, no extra channels, 8/16 bit-per-channel) + + GIF (*comp always reports as 4-channel) + HDR (radiance rgbE format) + PIC (Softimage PIC) + PNM (PPM and PGM binary only) + + Animated GIF still needs a proper API, but here's one way to do it: + http://gist.github.com/urraka/685d9a6340b26b830d49 + + - decode from memory or through FILE (define STBI_NO_STDIO to remove code) + - decode from arbitrary I/O callbacks + - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) + + Full documentation under "DOCUMENTATION" below. + + +LICENSE + + See end of file for license information. + +RECENT REVISION HISTORY: + + 2.30 (2024-05-31) avoid erroneous gcc warning + 2.29 (2023-05-xx) optimizations + 2.28 (2023-01-29) many error fixes, security errors, just tons of stuff + 2.27 (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes + 2.26 (2020-07-13) many minor fixes + 2.25 (2020-02-02) fix warnings + 2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically + 2.23 (2019-08-11) fix clang static analysis warning + 2.22 (2019-03-04) gif fixes, fix warnings + 2.21 (2019-02-25) fix typo in comment + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings + 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes + 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP + 2.10 (2016-01-22) avoid warning introduced in 2.09 + 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED + + See end of file for full revision history. + + + ============================ Contributors ========================= + + Image formats Extensions, features + Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) + Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) + Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) + Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) + Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) + Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) + Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) + github:urraka (animated gif) Junggon Kim (PNM comments) + Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) + Optimizations & bugfixes Mikhail Morozov (1-bit BMP) + Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) + Arseny Kapoulkine Simon Breuss (16-bit PNM) + John-Mark Allen + Carmelo J Fdez-Aguera + + Bug & warning fixes + Marc LeBlanc David Woo Guillaume George Martins Mozeiko + Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski + Phil Jordan Dave Moore Roy Eltham + Hayaki Saito Nathan Reed Won Chun + Luke Graham Johan Duparc Nick Verigakis the Horde3D community + Thomas Ruf Ronny Chevalier github:rlyeh + Janez Zemva John Bartholomew Michal Cichon github:romigrou + Jonathan Blow Ken Hamada Tero Hanninen github:svdijk + Eugene Golushkov Laurent Gomila Cort Stratton github:snagar + Aruelien Pocheville Sergio Gonzalez Thibault Reuille github:Zelex + Cass Everitt Ryamond Barbiero github:grim210 + Paul Du Bois Engin Manap Aldo Culquicondor github:sammyhw + Philipp Wiesemann Dale Weiler Oriol Ferrer Mesia github:phprus + Josh Tobin Neil Bickford Matthew Gregan github:poppolopoppo + Julian Raschke Gregory Mullen Christian Floisand github:darealshinji + Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007 + Brad Weinberger Matvey Cherevko github:mosra + Luca Sas Alexander Veselov Zack Middleton [reserved] + Ryan C. Gordon [reserved] [reserved] + DO NOT ADD YOUR NAME HERE + + Jacko Dirks + + To add your name to the credits, pick a random blank space in the middle and fill it. + 80% of merge conflicts on stb PRs are due to people adding their name at the end + of the credits. +*/ + +#ifndef STBI_INCLUDE_STB_IMAGE_H +#define STBI_INCLUDE_STB_IMAGE_H + +// DOCUMENTATION +// +// Limitations: +// - no 12-bit-per-channel JPEG +// - no JPEGs with arithmetic coding +// - GIF always returns *comp=4 +// +// Basic usage (see HDR discussion below for HDR usage): +// int x,y,n; +// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); +// // ... process data if not NULL ... +// // ... x = width, y = height, n = # 8-bit components per pixel ... +// // ... replace '0' with '1'..'4' to force that many components per pixel +// // ... but 'n' will always be the number that it would have been if you said 0 +// stbi_image_free(data); +// +// Standard parameters: +// int *x -- outputs image width in pixels +// int *y -- outputs image height in pixels +// int *channels_in_file -- outputs # of image components in image file +// int desired_channels -- if non-zero, # of image components requested in result +// +// The return value from an image loader is an 'unsigned char *' which points +// to the pixel data, or NULL on an allocation failure or if the image is +// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, +// with each pixel consisting of N interleaved 8-bit components; the first +// pixel pointed to is top-left-most in the image. There is no padding between +// image scanlines or between pixels, regardless of format. The number of +// components N is 'desired_channels' if desired_channels is non-zero, or +// *channels_in_file otherwise. If desired_channels is non-zero, +// *channels_in_file has the number of components that _would_ have been +// output otherwise. E.g. if you set desired_channels to 4, you will always +// get RGBA output, but you can check *channels_in_file to see if it's trivially +// opaque because e.g. there were only 3 channels in the source image. +// +// An output image with N components has the following components interleaved +// in this order in each pixel: +// +// N=#comp components +// 1 grey +// 2 grey, alpha +// 3 red, green, blue +// 4 red, green, blue, alpha +// +// If image loading fails for any reason, the return value will be NULL, +// and *x, *y, *channels_in_file will be unchanged. The function +// stbi_failure_reason() can be queried for an extremely brief, end-user +// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS +// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly +// more user-friendly ones. +// +// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. +// +// To query the width, height and component count of an image without having to +// decode the full file, you can use the stbi_info family of functions: +// +// int x,y,n,ok; +// ok = stbi_info(filename, &x, &y, &n); +// // returns ok=1 and sets x, y, n if image is a supported format, +// // 0 otherwise. +// +// Note that stb_image pervasively uses ints in its public API for sizes, +// including sizes of memory buffers. This is now part of the API and thus +// hard to change without causing breakage. As a result, the various image +// loaders all have certain limits on image size; these differ somewhat +// by format but generally boil down to either just under 2GB or just under +// 1GB. When the decoded image would be larger than this, stb_image decoding +// will fail. +// +// Additionally, stb_image will reject image files that have any of their +// dimensions set to a larger value than the configurable STBI_MAX_DIMENSIONS, +// which defaults to 2**24 = 16777216 pixels. Due to the above memory limit, +// the only way to have an image with such dimensions load correctly +// is for it to have a rather extreme aspect ratio. Either way, the +// assumption here is that such larger images are likely to be malformed +// or malicious. If you do need to load an image with individual dimensions +// larger than that, and it still fits in the overall size limit, you can +// #define STBI_MAX_DIMENSIONS on your own to be something larger. +// +// =========================================================================== +// +// UNICODE: +// +// If compiling for Windows and you wish to use Unicode filenames, compile +// with +// #define STBI_WINDOWS_UTF8 +// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert +// Windows wchar_t filenames to utf8. +// +// =========================================================================== +// +// Philosophy +// +// stb libraries are designed with the following priorities: +// +// 1. easy to use +// 2. easy to maintain +// 3. good performance +// +// Sometimes I let "good performance" creep up in priority over "easy to maintain", +// and for best performance I may provide less-easy-to-use APIs that give higher +// performance, in addition to the easy-to-use ones. Nevertheless, it's important +// to keep in mind that from the standpoint of you, a client of this library, +// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. +// +// Some secondary priorities arise directly from the first two, some of which +// provide more explicit reasons why performance can't be emphasized. +// +// - Portable ("ease of use") +// - Small source code footprint ("easy to maintain") +// - No dependencies ("ease of use") +// +// =========================================================================== +// +// I/O callbacks +// +// I/O callbacks allow you to read from arbitrary sources, like packaged +// files or some other source. Data read from callbacks are processed +// through a small internal buffer (currently 128 bytes) to try to reduce +// overhead. +// +// The three functions you must define are "read" (reads some bytes of data), +// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). +// +// =========================================================================== +// +// SIMD support +// +// The JPEG decoder will try to automatically use SIMD kernels on x86 when +// supported by the compiler. For ARM Neon support, you must explicitly +// request it. +// +// (The old do-it-yourself SIMD API is no longer supported in the current +// code.) +// +// On x86, SSE2 will automatically be used when available based on a run-time +// test; if not, the generic C versions are used as a fall-back. On ARM targets, +// the typical path is to have separate builds for NEON and non-NEON devices +// (at least this is true for iOS and Android). Therefore, the NEON support is +// toggled by a build flag: define STBI_NEON to get NEON loops. +// +// If for some reason you do not want to use any of SIMD code, or if +// you have issues compiling it, you can disable it entirely by +// defining STBI_NO_SIMD. +// +// =========================================================================== +// +// HDR image support (disable by defining STBI_NO_HDR) +// +// stb_image supports loading HDR images in general, and currently the Radiance +// .HDR file format specifically. You can still load any file through the existing +// interface; if you attempt to load an HDR file, it will be automatically remapped +// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; +// both of these constants can be reconfigured through this interface: +// +// stbi_hdr_to_ldr_gamma(2.2f); +// stbi_hdr_to_ldr_scale(1.0f); +// +// (note, do not use _inverse_ constants; stbi_image will invert them +// appropriately). +// +// Additionally, there is a new, parallel interface for loading files as +// (linear) floats to preserve the full dynamic range: +// +// float *data = stbi_loadf(filename, &x, &y, &n, 0); +// +// If you load LDR images through this interface, those images will +// be promoted to floating point values, run through the inverse of +// constants corresponding to the above: +// +// stbi_ldr_to_hdr_scale(1.0f); +// stbi_ldr_to_hdr_gamma(2.2f); +// +// Finally, given a filename (or an open file or memory block--see header +// file for details) containing image data, you can query for the "most +// appropriate" interface to use (that is, whether the image is HDR or +// not), using: +// +// stbi_is_hdr(char *filename); +// +// =========================================================================== +// +// iPhone PNG support: +// +// We optionally support converting iPhone-formatted PNGs (which store +// premultiplied BGRA) back to RGB, even though they're internally encoded +// differently. To enable this conversion, call +// stbi_convert_iphone_png_to_rgb(1). +// +// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per +// pixel to remove any premultiplied alpha *only* if the image file explicitly +// says there's premultiplied data (currently only happens in iPhone images, +// and only if iPhone convert-to-rgb processing is on). +// +// =========================================================================== +// +// ADDITIONAL CONFIGURATION +// +// - You can suppress implementation of any of the decoders to reduce +// your code footprint by #defining one or more of the following +// symbols before creating the implementation. +// +// STBI_NO_JPEG +// STBI_NO_PNG +// STBI_NO_BMP +// STBI_NO_PSD +// STBI_NO_TGA +// STBI_NO_GIF +// STBI_NO_HDR +// STBI_NO_PIC +// STBI_NO_PNM (.ppm and .pgm) +// +// - You can request *only* certain decoders and suppress all other ones +// (this will be more forward-compatible, as addition of new decoders +// doesn't require you to disable them explicitly): +// +// STBI_ONLY_JPEG +// STBI_ONLY_PNG +// STBI_ONLY_BMP +// STBI_ONLY_PSD +// STBI_ONLY_TGA +// STBI_ONLY_GIF +// STBI_ONLY_HDR +// STBI_ONLY_PIC +// STBI_ONLY_PNM (.ppm and .pgm) +// +// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still +// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB +// +// - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater +// than that size (in either width or height) without further processing. +// This is to let programs in the wild set an upper bound to prevent +// denial-of-service attacks on untrusted data, as one could generate a +// valid image of gigantic dimensions and force stb_image to allocate a +// huge block of memory and spend disproportionate time decoding it. By +// default this is set to (1 << 24), which is 16777216, but that's still +// very big. + +#ifndef STBI_NO_STDIO +#include <stdio.h> +#endif // STBI_NO_STDIO + +#define STBI_VERSION 1 + +enum +{ + STBI_default = 0, // only used for desired_channels + + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; + +#include <stdlib.h> +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef STBIDEF +#ifdef STB_IMAGE_STATIC +#define STBIDEF static +#else +#define STBIDEF extern +#endif +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// PRIMARY API - works on images of any type +// + +// +// load image by filename, open file, or memory buffer +// + +typedef struct +{ + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data +} stbi_io_callbacks; + +//////////////////////////////////// +// +// 8-bits-per-channel interface +// + +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +// for stbi_load_from_file, file pointer is left pointing immediately after image +#endif + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +#endif + +#ifdef STBI_WINDOWS_UTF8 +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif + +//////////////////////////////////// +// +// 16-bits-per-channel interface +// + +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +#endif + +//////////////////////////////////// +// +// float-per-channel interface +// +#ifndef STBI_NO_LINEAR + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif +#endif + +#ifndef STBI_NO_HDR + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); +#endif // STBI_NO_HDR + +#ifndef STBI_NO_LINEAR + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); +#endif // STBI_NO_LINEAR + +// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); +#endif // STBI_NO_STDIO + + +// get a VERY brief reason for failure +// on most compilers (and ALL modern mainstream compilers) this is threadsafe +STBIDEF const char *stbi_failure_reason (void); + +// free the loaded image -- this is just free() +STBIDEF void stbi_image_free (void *retval_from_stbi_load); + +// get image dimensions & components without fully decoding +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); +#endif + + + +// for image formats that explicitly notate that they have premultiplied alpha, +// we just return the colors as stored in the file. set this flag to force +// unpremultiplication. results are undefined if the unpremultiply overflow. +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); + +// indicate whether we should process iphone images back to canonical format, +// or just pass them through "as-is" +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); + +// flip the image vertically, so the first pixel in the output array is the bottom left +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); + +// as above, but only applies to images loaded on the thread that calls the function +// this function is only available if your compiler supports thread-local variables; +// calling it will fail to link if your compiler doesn't +STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply); +STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert); +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip); + +// ZLIB client - used by PNG, available for other purposes + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + + +#ifdef __cplusplus +} +#endif + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBI_INCLUDE_STB_IMAGE_H + +#ifdef STB_IMAGE_IMPLEMENTATION + +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif +#endif + +#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) +#define STBI_NO_ZLIB +#endif + + +#include <stdarg.h> +#include <stddef.h> // ptrdiff_t on osx +#include <stdlib.h> +#include <string.h> +#include <limits.h> + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +#include <math.h> // ldexp, pow +#endif + +#ifndef STBI_NO_STDIO +#include <stdio.h> +#endif + +#ifndef STBI_ASSERT +#include <assert.h> +#define STBI_ASSERT(x) assert(x) +#endif + +#ifdef __cplusplus +#define STBI_EXTERN extern "C" +#else +#define STBI_EXTERN extern +#endif + + +#ifndef _MSC_VER + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif +#else + #define stbi_inline __forceinline +#endif + +#ifndef STBI_NO_THREAD_LOCALS + #if defined(__cplusplus) && __cplusplus >= 201103L + #define STBI_THREAD_LOCAL thread_local + #elif defined(__GNUC__) && __GNUC__ < 5 + #define STBI_THREAD_LOCAL __thread + #elif defined(_MSC_VER) + #define STBI_THREAD_LOCAL __declspec(thread) + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) + #define STBI_THREAD_LOCAL _Thread_local + #endif + + #ifndef STBI_THREAD_LOCAL + #if defined(__GNUC__) + #define STBI_THREAD_LOCAL __thread + #endif + #endif +#endif + +#if defined(_MSC_VER) || defined(__SYMBIAN32__) +typedef unsigned short stbi__uint16; +typedef signed short stbi__int16; +typedef unsigned int stbi__uint32; +typedef signed int stbi__int32; +#else +#include <stdint.h> +typedef uint16_t stbi__uint16; +typedef int16_t stbi__int16; +typedef uint32_t stbi__uint32; +typedef int32_t stbi__int32; +#endif + +// should produce compiler error if size is wrong +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBI_NOTUSED(v) (void)(v) +#else +#define STBI_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef _MSC_VER +#define STBI_HAS_LROTL +#endif + +#ifdef STBI_HAS_LROTL + #define stbi_lrot(x,y) _lrotl(x,y) +#else + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (-(y) & 31))) +#endif + +#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) +// ok +#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." +#endif + +#ifndef STBI_MALLOC +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) +#endif + +#ifndef STBI_REALLOC_SIZED +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) +#endif + +// x86/x64 detection +#if defined(__x86_64__) || defined(_M_X64) +#define STBI__X64_TARGET +#elif defined(__i386) || defined(_M_IX86) +#define STBI__X86_TARGET +#endif + +#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) +// gcc doesn't support sse2 intrinsics unless you compile with -msse2, +// which in turn means it gets to use SSE2 everywhere. This is unfortunate, +// but previous attempts to provide the SSE2 functions with runtime +// detection caused numerous issues. The way architecture extensions are +// exposed in GCC/Clang is, sadly, not really suited for one-file libs. +// New behavior: if compiled with -msse2, we use SSE2 without any +// detection; if not, we don't use it at all. +#define STBI_NO_SIMD +#endif + +#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) +// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET +// +// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the +// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. +// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not +// simultaneously enabling "-mstackrealign". +// +// See https://github.com/nothings/stb/issues/81 for more information. +// +// So default to no SSE2 on 32-bit MinGW. If you've read this far and added +// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. +#define STBI_NO_SIMD +#endif + +#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) +#define STBI_SSE2 +#include <emmintrin.h> + +#ifdef _MSC_VER + +#if _MSC_VER >= 1400 // not VC6 +#include <intrin.h> // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; +} +#else +static int stbi__cpuid3(void) +{ + int res; + __asm { + mov eax,1 + cpuid + mov res,edx + } + return res; +} +#endif + +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; +} +#endif + +#else // assume GCC-style if not VC++ +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; +} +#endif + +#endif +#endif + +// ARM NEON +#if defined(STBI_NO_SIMD) && defined(STBI_NEON) +#undef STBI_NEON +#endif + +#ifdef STBI_NEON +#include <arm_neon.h> +#ifdef _MSC_VER +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name +#else +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) +#endif +#endif + +#ifndef STBI_SIMD_ALIGN +#define STBI_SIMD_ALIGN(type, name) type name +#endif + +#ifndef STBI_MAX_DIMENSIONS +#define STBI_MAX_DIMENSIONS (1 << 24) +#endif + +/////////////////////////////////////////////// +// +// stbi__context struct and start_xxx functions + +// stbi__context structure is our basic context used by all images, so it +// contains all the IO context, plus some basic image information +typedef struct +{ + stbi__uint32 img_x, img_y; + int img_n, img_out_n; + + stbi_io_callbacks io; + void *io_user_data; + + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + int callback_already_read; + + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; +} stbi__context; + + +static void stbi__refill_buffer(stbi__context *s); + +// initialize a memory-decode context +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; +} + +// initialize a callback-based context +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; +} + +#ifndef STBI_NO_STDIO + +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); +} + +static void stbi__stdio_skip(void *user, int n) +{ + int ch; + fseek((FILE*) user, n, SEEK_CUR); + ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */ + if (ch != EOF) { + ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */ + } +} + +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user) || ferror((FILE *) user); +} + +static stbi_io_callbacks stbi__stdio_callbacks = +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, +}; + +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); +} + +//static void stop_file(stbi__context *s) { } + +#endif // !STBI_NO_STDIO + +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; +} + +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR +}; + +typedef struct +{ + int bits_per_channel; + int num_channels; + int channel_order; +} stbi__result_info; + +#ifndef STBI_NO_JPEG +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNG +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_BMP +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_TGA +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_HDR +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_GIF +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNM +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__pnm_is16(stbi__context *s); +#endif + +static +#ifdef STBI_THREAD_LOCAL +STBI_THREAD_LOCAL +#endif +const char *stbi__g_failure_reason; + +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; +} + +#ifndef STBI_NO_FAILURE_STRINGS +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; +} +#endif + +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); +} + +// stb_image uses ints pervasively, including for offset calculations. +// therefore the largest decoded image size we can support with the +// current code, even on 64-bit targets, is INT_MAX. this is not a +// significant limitation for the intended use case. +// +// we do, however, need to make sure our size calculations don't +// overflow. hence a few helper functions for size calculations that +// multiply integers together, making sure that they're non-negative +// and no overflow occurs. + +// return 1 if the sum is valid, 0 on overflow. +// negative terms are considered invalid. +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; +} + +// returns 1 if the product is valid, 0 on overflow. +// negative factors are considered invalid. +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; +} + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); +} +#endif + +// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); +} + +// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM) +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); +} +#endif + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// mallocs with size overflow checking +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); +} +#endif + +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); +} + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM) +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); +} +#endif + +// returns 1 if the sum of two signed ints is valid (between -2^31 and 2^31-1 inclusive), 0 on overflow. +static int stbi__addints_valid(int a, int b) +{ + if ((a >= 0) != (b >= 0)) return 1; // a and b have different signs, so no overflow + if (a < 0 && b < 0) return a >= INT_MIN - b; // same as a + b >= INT_MIN; INT_MIN - b cannot overflow since b < 0. + return a <= INT_MAX - b; +} + +// returns 1 if the product of two ints fits in a signed short, 0 on overflow. +static int stbi__mul2shorts_valid(int a, int b) +{ + if (b == 0 || b == -1) return 1; // multiplication by 0 is always 0; check for -1 so SHRT_MIN/b doesn't overflow + if ((a >= 0) == (b >= 0)) return a <= SHRT_MAX/b; // product is positive, so similar to mul2sizes_valid + if (b < 0) return a <= SHRT_MIN / b; // same as a * b >= SHRT_MIN + return a >= SHRT_MIN / b; +} + +// stbi__err - error +// stbi__errpf - error returning pointer to float +// stbi__errpuc - error returning pointer to unsigned char + +#ifdef STBI_NO_FAILURE_STRINGS + #define stbi__err(x,y) 0 +#elif defined(STBI_FAILURE_USERMSG) + #define stbi__err(x,y) stbi__err(y) +#else + #define stbi__err(x,y) stbi__err(x) +#endif + +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) + +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); +#endif + +#ifndef STBI_NO_HDR +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); +#endif + +static int stbi__vertically_flip_on_load_global = 0; + +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_global = flag_true_if_should_flip; +} + +#ifndef STBI_THREAD_LOCAL +#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global +#else +static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; + +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_local = flag_true_if_should_flip; + stbi__vertically_flip_on_load_set = 1; +} + +#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ + ? stbi__vertically_flip_on_load_local \ + : stbi__vertically_flip_on_load_global) +#endif // STBI_THREAD_LOCAL + +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; + + // test the formats with a very explicit header first (at least a FOURCC + // or distinctive magic number first) + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #else + STBI_NOTUSED(bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif + + // then the formats that can end up attempting to load with just 1 or 2 + // bytes matching expectations; these are prone to false positives, so + // try them later + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif + + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif + + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); +} + +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; + + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + + STBI_FREE(orig); + return reduced; +} + +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; + + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + + STBI_FREE(orig); + return enlarged; +} + +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; + + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } +} + +#ifndef STBI_NO_GIF +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; + + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } +} +#endif + +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 8) { + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } + + // @TODO: move stbi__convert_format to here + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } + + return (unsigned char *) result; +} + +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 16) { + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } + + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } + + return (stbi__uint16 *) result; +} + +#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } +} +#endif + +#ifndef STBI_NO_STDIO + +#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) +STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); +#endif + +#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename)/sizeof(*wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode)/sizeof(*wMode))) + return 0; + +#if defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; +} + + +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); + + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } + + return result; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +} + +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_STDIO +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} +#endif // !STBI_NO_STDIO + +#endif // !STBI_NO_LINEAR + +// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is +// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always +// reports false! + +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; +} + +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + fseek(f, pos, SEEK_SET); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif +} + +#ifndef STBI_NO_LINEAR +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; + +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } +#endif + +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } + + +////////////////////////////////////////////////////////////////////////////// +// +// Common code used by all image loaders +// + +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header +}; + +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } +} + +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; +} + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } + + return s->img_buffer >= s->img_buffer_end; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) +// nothing +#else +static void stbi__skip(stbi__context *s, int n) +{ + if (n == 0) return; // already there! + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) +// nothing +#else +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; + + memcpy(buffer, s->img_buffer, blen); + + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } + + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); +} +#endif + +#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) +// nothing +#else +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); +} +#endif + +#ifndef STBI_NO_BMP +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + z += (stbi__uint32)stbi__get16le(s) << 16; + return z; +} +#endif + +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +////////////////////////////////////////////////////////////////////////////// +// +// generic converter from built-in img_n to req_comp +// individual types do this automatically as much as possible (e.g. jpeg +// does all cases internally since it needs to colorspace convert anyway, +// and it never has alpha, so very few cases ). png can automatically +// interleave an alpha=255 channel, but falls back to this for other cases +// +// assume data buffer is malloced, so malloc a new one and free that one +// only failure mode is malloc failing + +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + } + if (n < comp) { + for (i=0; i < x*y; ++i) { + output[i*comp + n] = data[i*comp + n]/255.0f; + } + } + STBI_FREE(data); + return output; +} +#endif + +#ifndef STBI_NO_HDR +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; +} +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// "baseline" JPEG/JFIF decoder +// +// simple implementation +// - doesn't support delayed output of y-dimension +// - simple interface (only one output format: 8-bit interleaved RGB) +// - doesn't try to recover corrupt jpegs +// - doesn't allow partial loading, loading multiple at once +// - still fast on x86 (copying globals into locals doesn't help x86) +// - allocates lots of intermediate memory (full size of all components) +// - non-interleaved case requires this anyway +// - allows good upsampling (see next) +// high-quality +// - upsampled channels are bilinearly interpolated, even across blocks +// - quality integer IDCT derived from IJG's 'slow' +// performance +// - fast huffman; reasonable integer IDCT +// - some SIMD kernels for common paths on targets with SSE2/NEON +// - uses a lot of intermediate memory, could cache poorly + +#ifndef STBI_NO_JPEG + +// huffman decoding acceleration +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache + +typedef struct +{ + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' +} stbi__huffman; + +typedef struct +{ + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; + +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; + +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; + + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; + + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop + + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; + + int scan_n, order[4]; + int restart_interval, todo; + +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); +} stbi__jpeg; + +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) { + for (j=0; j < count[i]; ++j) { + h->size[k++] = (stbi_uc) (i+1); + if(k >= 257) return stbi__err("bad size list","Corrupt JPEG"); + } + } + h->size[k] = 0; + + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; + + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; +} + +// build a table that decodes both magnitude and value of small ACs in +// one go. +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; + + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } +} + +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); +} + +// (1 << n) - 1 +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; + +// decode a jpeg huffman value from the bitstream +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } + + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } + + if (k > j->code_bits) + return -1; + + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + if(c < 0 || c >= 256) // symbol id out of bounds! + return -1; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; +} + +// bias[n] = (-1<<n) + 1 +static const int stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767}; + +// combined JPEG 'receive' and JPEG 'extend', since baseline +// always extends everything it receives. +stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n) +{ + unsigned int k; + int sgn; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + if (j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing + + sgn = j->code_buffer >> 31; // sign bit always in MSB; 0 if MSB clear (positive), 1 if MSB set (negative) + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & (sgn - 1)); +} + +// get some unsigned bits +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + if (j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; +} + +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + if (j->code_bits < 1) return 0; // ran out of bits from stream, return 0s intead of continuing + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; +} + +// given a value that's at position X in the zigzag stream, +// where does it appear in the 8x8 matrix coded as row-major? +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; + +// decode one 64-entry block-- +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0 || t > 15) return stbi__err("bad huffman code","Corrupt JPEG"); + + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); + + diff = t ? stbi__extend_receive(j, t) : 0; + if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta","Corrupt JPEG"); + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + if (!stbi__mul2shorts_valid(dc, dequant[0])) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + data[0] = (short) (dc * dequant[0]); + + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + if (s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; +} + +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0 || t > 15) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + diff = t ? stbi__extend_receive(j, t) : 0; + + if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta", "Corrupt JPEG"); + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + if (!stbi__mul2shorts_valid(dc, 1 << j->succ_low)) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + data[0] = (short) (dc * (1 << j->succ_low)); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; +} + +// @OPTIMIZE: store non-zigzagged during the decode passes, +// and only de-zigzag when dequantizing +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->succ_high == 0) { + int shift = j->succ_low; + + if (j->eob_run) { + --j->eob_run; + return 1; + } + + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + if (s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * (1 << shift)); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * (1 << shift)); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients + + short bit = (short) (1 << j->succ_low); + + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } + + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; +} + +// take a -128..127 value and stbi__clamp it and convert to 0..255 +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; +} + +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) + +// derived from jidctint -- DCT_ISLOW +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; + +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; + + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } + + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } +} + +#ifdef STBI_SSE2 +// sse2 integer IDCT. not the fastest possible implementation but it +// produces bit-identical results to the generic C version so it's +// fully "transparent". +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; + + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) + + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } + + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) + + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) + + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } + + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); + + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); + + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); + + // column pass + dct_pass(bias_0, 10); + + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); + + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); + + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } + + // row pass + dct_pass(bias_1, 17); + + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); + + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... + + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... + + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... + + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } + +#undef dct_const +#undef dct_rot +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_interleave8 +#undef dct_interleave16 +#undef dct_pass +} + +#endif // STBI_SSE2 + +#ifdef STBI_NEON + +// NEON integer IDCT. should produce bit-identical +// results to the generic C version. +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; + + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); + +#define dct_long_mul(out, inq, coeff) \ + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + +#define dct_long_mac(out, acc, inq, coeff) \ + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + +#define dct_widen(out, inq) \ + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + +// wide add +#define dct_wadd(out, a, b) \ + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + +// wide sub +#define dct_wsub(out, a, b) \ + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + +// butterfly a/b, then shift using "shiftop" by "s" and pack +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } + +#define dct_pass(shiftop, shift) \ + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } + + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); + + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + + // column pass + dct_pass(vrshrn_n_s32, 10); + + // 16bit 8x8 transpose + { +// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. +// whether compilers actually get this is another story, sadly. +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } + + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); + + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); + + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); + +#undef dct_trn16 +#undef dct_trn32 +#undef dct_trn64 + } + + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); + + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } + + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! + + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); + + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); + + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); + + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); + +#undef dct_trn8_8 +#undef dct_trn8_16 +#undef dct_trn8_32 + } + +#undef dct_long_mul +#undef dct_long_mac +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_pass +} + +#endif // STBI_NEON + +#define STBI__MARKER_none 0xff +// if there's a pending marker from the entropy stream, return that +// otherwise, fetch from the stream and get a marker. if there's no +// marker, return 0xff, which is never a valid marker value +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; +} + +// in each scan, we'll have scan_n components, and the order +// of the components is specified by order[] +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) + +// after a restart interval, stbi__jpeg_reset the entropy decoder and +// the dc prediction +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels +} + +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } +} + +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; +} + +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } +} + +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); + + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; + + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); + + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; + + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + if(n > 256) return stbi__err("bad DHT header","Corrupt JPEG"); // Loop over i < n would write past end of values! + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } + + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; + + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } + + stbi__skip(z->s, L); + return 1; + } + + return stbi__err("unknown marker","Corrupt JPEG"); +} + +// after we see SOS +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } + + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } + + return 1; +} + +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; +} + +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } + + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); + + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } + + if (scan != STBI__SCAN_load) return 1; + + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } + + // check that plane subsampling factors are integer ratios; our resamplers can't deal with fractional ratios + // and I've never seen a non-corrupted JPEG file actually use them + for (i=0; i < s->img_n; ++i) { + if (h_max % z->img_comp[i].h != 0) return stbi__err("bad H","Corrupt JPEG"); + if (v_max % z->img_comp[i].v != 0) return stbi__err("bad V","Corrupt JPEG"); + } + + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; + + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } + + return 1; +} + +// use comparisons since in some cases we handle more than one case (e.g. SOF) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) + +#define stbi__SOF_progressive(x) ((x) == 0xc2) + +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; +} + +static stbi_uc stbi__skip_jpeg_junk_at_end(stbi__jpeg *j) +{ + // some JPEGs have junk at end, skip over it but if we find what looks + // like a valid marker, resume there + while (!stbi__at_eof(j->s)) { + stbi_uc x = stbi__get8(j->s); + while (x == 0xff) { // might be a marker + if (stbi__at_eof(j->s)) return STBI__MARKER_none; + x = stbi__get8(j->s); + if (x != 0x00 && x != 0xff) { + // not a stuffed zero or lead-in to another marker, looks + // like an actual marker, return it + return x; + } + // stuffed zero has x=0 now which ends the loop, meaning we go + // back to regular scan loop. + // repeated 0xff keeps trying to read the next byte of the marker. + } + } + return STBI__MARKER_none; +} + +// decode image to YCbCr format +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + j->marker = stbi__skip_jpeg_junk_at_end(j); + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + m = stbi__get_marker(j); + if (STBI__RESTART(m)) + m = stbi__get_marker(j); + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + m = stbi__get_marker(j); + } else { + if (!stbi__process_marker(j, m)) return 1; + m = stbi__get_marker(j); + } + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; +} + +// static jfif-centered resampling (across block boundaries) + +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); + +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) + +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; +} + +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; +} + +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; + + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } + + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; + + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); + + return out; +} + +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) + +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; + + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { +#if defined(STBI_SSE2) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); + + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); + + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); +#elif defined(STBI_NEON) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); + + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); +#endif + + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } + + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); + + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} +#endif + +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; +} + +// this is a reduced-precision calculation of YCbCr-to-RGB introduced +// to make sure the code produces the same results in both SIMD and scalar +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; + +#ifdef STBI_SSE2 + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel + + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); + + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); + + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); + + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); + + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } +#endif + +#ifdef STBI_NEON + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); + + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); + + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); + + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); + + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } +#endif + + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} +#endif + +// set up the kernels +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; + +#ifdef STBI_SSE2 + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } +#endif + +#ifdef STBI_NEON + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; +#endif +} + +// clean up the temporary component buffers +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); +} + +typedef struct +{ + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on +} stbi__resample; + +// fast 0..255 * 0..255 => 0..255 rounded multiplication +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); +} + +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe + + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } + + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; + + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; + + // nothing to do if no components requested; check this now to avoid + // accessing uninitialized coutput[0] later + if (decode_n <= 0) { stbi__cleanup_jpeg(z); return NULL; } + + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; + + stbi__resample res_comp[4]; + + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; + + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } + + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } +} + +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + if (!j) return stbi__errpuc("outofmem", "Out of memory"); + memset(j, 0, sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; +} + +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + if (!j) return stbi__err("outofmem", "Out of memory"); + memset(j, 0, sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; +} + +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; +} + +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + if (!j) return stbi__err("outofmem", "Out of memory"); + memset(j, 0, sizeof(stbi__jpeg)); + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; +} +#endif + +// public domain zlib decode v0.2 Sean Barrett 2006-11-18 +// simple implementation +// - all input must be provided in an upfront buffer +// - all output is written to a single output buffer (can malloc/realloc) +// performance +// - fast huffman + +#ifndef STBI_NO_ZLIB + +// fast-way is faster to check than jpeg huffman, but slow way is slower +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) +#define STBI__ZNSYMS 288 // number of symbols in literal/length alphabet + +// zlib-style huffman encoding +// (jpegs packs from left, zlib from right, so can't share code) +typedef struct +{ + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[STBI__ZNSYMS]; + stbi__uint16 value[STBI__ZNSYMS]; +} stbi__zhuffman; + +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; +} + +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); +} + +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; + + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; +} + +// zlib-from-memory implementation for PNG reading +// because PNG allows splitting the zlib stream arbitrarily, +// and it's annoying structurally to have PNG call ZLIB call PNG, +// we require PNG read all the IDATs and combine them into a single +// memory buffer + +typedef struct +{ + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + int hit_zeof_once; + stbi__uint32 code_buffer; + + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; + + stbi__zhuffman z_length, z_distance; +} stbi__zbuf; + +stbi_inline static int stbi__zeof(stbi__zbuf *z) +{ + return (z->zbuffer >= z->zbuffer_end); +} + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + return stbi__zeof(z) ? 0 : *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + if (z->code_buffer >= (1U << z->num_bits)) { + z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ + return; + } + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s >= 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + if (b >= STBI__ZNSYMS) return -1; // some data was corrupt somewhere! + if (z->size[b] != s) return -1; // was originally an assert, but report failure instead. + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) { + if (stbi__zeof(a)) { + if (!a->hit_zeof_once) { + // This is the first time we hit eof, insert 16 extra padding btis + // to allow us to keep going; if we actually consume any of them + // though, that is invalid data. This is caught later. + a->hit_zeof_once = 1; + a->num_bits += 16; // add 16 implicit zero bits + } else { + // We already inserted our extra 16 padding bits and are again + // out, this stream is actually prematurely terminated. + return -1; + } + } else { + stbi__fill_bits(a); + } + } + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + unsigned int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (unsigned int) (z->zout - z->zout_start); + limit = old_limit = (unsigned) (z->zout_end - z->zout_start); + if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory"); + while (cur + n > limit) { + if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); + limit *= 2; + } + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; +} + +static const int stbi__zlength_base[31] = { + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; + +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; + +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; + +static const int stbi__zdist_extra[32] = +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + if (a->hit_zeof_once && a->num_bits < 16) { + // The first time we hit zeof, we inserted 16 extra zero bits into our bit + // buffer so the decoder can just do its speculative decoding. But if we + // actually consumed any of those bits (which is the case when num_bits < 16), + // the stream actually read past the end so it is malformed. + return stbi__err("unexpected end","Corrupt PNG"); + } + return 1; + } + if (z >= 286) return stbi__err("bad huffman code","Corrupt PNG"); // per DEFLATE, length codes 286 and 287 must not appear in compressed data + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0 || z >= 30) return stbi__err("bad huffman code","Corrupt PNG"); // per DEFLATE, distance codes 30 and 31 must not appear in compressed data + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (len > a->zout_end - zout) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } +} + +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; + + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; + + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) { + c = stbi__zreceive(a,3)+3; + } else if (c == 18) { + c = stbi__zreceive(a,7)+11; + } else { + return stbi__err("bad codelengths", "Corrupt PNG"); + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; +} + +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG"); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; +} + +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; +} + +static const stbi_uc stbi__zdefault_length[STBI__ZNSYMS] = +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; +static const stbi_uc stbi__zdefault_distance[32] = +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; +/* +Init algorithm: +{ + int i; // use <= to match clearly with spec + for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; + for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; + for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; + for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; + + for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; +} +*/ + +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + a->hit_zeof_once = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , STBI__ZNSYMS)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; +} + +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; + + return stbi__parse_zlib(a, parse_header); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; +} + +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; +} +#endif + +// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 +// simple implementation +// - only 8-bit samples +// - no CRC checking +// - allocates lots of intermediate memory +// - avoids problem of streaming data between subsystems +// - avoids explicit window management +// performance +// - uses stb_zlib, a PD zlib implementation with fast huffman decoding + +#ifndef STBI_NO_PNG +typedef struct +{ + stbi__uint32 length; + stbi__uint32 type; +} stbi__pngchunk; + +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; +} + +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; +} + +typedef struct +{ + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; +} stbi__png; + + +enum { + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filter used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first +}; + +static stbi_uc first_row_filter[5] = +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_sub // Paeth with b=c=0 turns out to be equivalent to sub +}; + +static int stbi__paeth(int a, int b, int c) +{ + // This formulation looks very different from the reference in the PNG spec, but is + // actually equivalent and has favorable data dependencies and admits straightforward + // generation of branch-free code, which helps performance significantly. + int thresh = c*3 - (a + b); + int lo = a < b ? a : b; + int hi = a < b ? b : a; + int t0 = (hi <= thresh) ? lo : c; + int t1 = (thresh <= lo) ? hi : t0; + return t1; +} + +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; + +// adds an extra all-255 alpha channel +// dest == src is legal +// img_n must be 1 or 3 +static void stbi__create_png_alpha_expand8(stbi_uc *dest, stbi_uc *src, stbi__uint32 x, int img_n) +{ + int i; + // must process data backwards since we allow dest==src + if (img_n == 1) { + for (i=x-1; i >= 0; --i) { + dest[i*2+1] = 255; + dest[i*2+0] = src[i]; + } + } else { + STBI_ASSERT(img_n == 3); + for (i=x-1; i >= 0; --i) { + dest[i*4+3] = 255; + dest[i*4+2] = src[i*3+2]; + dest[i*4+1] = src[i*3+1]; + dest[i*4+0] = src[i*3+0]; + } + } +} + +// create the png data from post-deflated data +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16 ? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + stbi_uc *filter_buf; + int all_ok = 1; + int k; + int img_n = s->img_n; // copy it into a local for later + + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; + + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); + + // note: error exits here don't need to clean up a->out individually, + // stbi__do_png always does on error. + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + if (!stbi__mad2sizes_valid(img_width_bytes, y, img_width_bytes)) return stbi__err("too large", "Corrupt PNG"); + img_len = (img_width_bytes + 1) * y; + + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); + + // Allocate two scan lines worth of filter workspace buffer. + filter_buf = (stbi_uc *) stbi__malloc_mad2(img_width_bytes, 2, 0); + if (!filter_buf) return stbi__err("outofmem", "Out of memory"); + + // Filtering for low-bit-depth images + if (depth < 8) { + filter_bytes = 1; + width = img_width_bytes; + } + + for (j=0; j < y; ++j) { + // cur/prior filter buffers alternate + stbi_uc *cur = filter_buf + (j & 1)*img_width_bytes; + stbi_uc *prior = filter_buf + (~j & 1)*img_width_bytes; + stbi_uc *dest = a->out + stride*j; + int nk = width * filter_bytes; + int filter = *raw++; + + // check filter type + if (filter > 4) { + all_ok = stbi__err("invalid filter","Corrupt PNG"); + break; + } + + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; + + // perform actual filtering + switch (filter) { + case STBI__F_none: + memcpy(cur, raw, nk); + break; + case STBI__F_sub: + memcpy(cur, raw, filter_bytes); + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); + break; + case STBI__F_up: + for (k = 0; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + prior[k]); + break; + case STBI__F_avg: + for (k = 0; k < filter_bytes; ++k) + cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); + break; + case STBI__F_paeth: + for (k = 0; k < filter_bytes; ++k) + cur[k] = STBI__BYTECAST(raw[k] + prior[k]); // prior[k] == stbi__paeth(0,prior[k],0) + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes], prior[k], prior[k-filter_bytes])); + break; + case STBI__F_avg_first: + memcpy(cur, raw, filter_bytes); + for (k = filter_bytes; k < nk; ++k) + cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); + break; + } + + raw += nk; + + // expand decoded bits in cur to dest, also adding an extra alpha channel if desired + if (depth < 8) { + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + stbi_uc *in = cur; + stbi_uc *out = dest; + stbi_uc inb = 0; + stbi__uint32 nsmp = x*img_n; + + // expand bits to bytes first + if (depth == 4) { + for (i=0; i < nsmp; ++i) { + if ((i & 1) == 0) inb = *in++; + *out++ = scale * (inb >> 4); + inb <<= 4; + } + } else if (depth == 2) { + for (i=0; i < nsmp; ++i) { + if ((i & 3) == 0) inb = *in++; + *out++ = scale * (inb >> 6); + inb <<= 2; + } + } else { + STBI_ASSERT(depth == 1); + for (i=0; i < nsmp; ++i) { + if ((i & 7) == 0) inb = *in++; + *out++ = scale * (inb >> 7); + inb <<= 1; + } + } + + // insert alpha=255 values if desired + if (img_n != out_n) + stbi__create_png_alpha_expand8(dest, dest, x, img_n); + } else if (depth == 8) { + if (img_n == out_n) + memcpy(dest, cur, x*img_n); + else + stbi__create_png_alpha_expand8(dest, cur, x, img_n); + } else if (depth == 16) { + // convert the image data from big-endian to platform-native + stbi__uint16 *dest16 = (stbi__uint16*)dest; + stbi__uint32 nsmp = x*img_n; + + if (img_n == out_n) { + for (i = 0; i < nsmp; ++i, ++dest16, cur += 2) + *dest16 = (cur[0] << 8) | cur[1]; + } else { + STBI_ASSERT(img_n+1 == out_n); + if (img_n == 1) { + for (i = 0; i < x; ++i, dest16 += 2, cur += 2) { + dest16[0] = (cur[0] << 8) | cur[1]; + dest16[1] = 0xffff; + } + } else { + STBI_ASSERT(img_n == 3); + for (i = 0; i < x; ++i, dest16 += 4, cur += 6) { + dest16[0] = (cur[0] << 8) | cur[1]; + dest16[1] = (cur[2] << 8) | cur[3]; + dest16[2] = (cur[4] << 8) | cur[5]; + dest16[3] = 0xffff; + } + } + } + } + } + + STBI_FREE(filter_buf); + if (!all_ok) return 0; + + return 1; +} + +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); + + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + if (!final) return stbi__err("outofmem", "Out of memory"); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; + + return 1; +} + +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; + + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; + + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); + + // between here and free(out) below, exitting would leak + temp_out = p; + + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; + + STBI_NOTUSED(len); + + return 1; +} + +static int stbi__unpremultiply_on_load_global = 0; +static int stbi__de_iphone_flag_global = 0; + +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load_global = flag_true_if_should_unpremultiply; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag_global = flag_true_if_should_convert; +} + +#ifndef STBI_THREAD_LOCAL +#define stbi__unpremultiply_on_load stbi__unpremultiply_on_load_global +#define stbi__de_iphone_flag stbi__de_iphone_flag_global +#else +static STBI_THREAD_LOCAL int stbi__unpremultiply_on_load_local, stbi__unpremultiply_on_load_set; +static STBI_THREAD_LOCAL int stbi__de_iphone_flag_local, stbi__de_iphone_flag_set; + +STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load_local = flag_true_if_should_unpremultiply; + stbi__unpremultiply_on_load_set = 1; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag_local = flag_true_if_should_convert; + stbi__de_iphone_flag_set = 1; +} + +#define stbi__unpremultiply_on_load (stbi__unpremultiply_on_load_set \ + ? stbi__unpremultiply_on_load_local \ + : stbi__unpremultiply_on_load_global) +#define stbi__de_iphone_flag (stbi__de_iphone_flag_set \ + ? stbi__de_iphone_flag_local \ + : stbi__de_iphone_flag_global) +#endif // STBI_THREAD_LOCAL + +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } +} + +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) + +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]={0}; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; + + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; + + if (!stbi__check_png_header(s)) return 0; + + if (scan == STBI__SCAN_type) return 1; + + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); + s->img_y = stbi__get32be(s); + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + } + // even with SCAN_header, have to scan to see if we have a tRNS + break; + } + + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } + + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + // non-paletted with tRNS = constant alpha. if header-scanning, we can stop now. + if (scan == STBI__SCAN_header) { ++s->img_n; return 1; } + if (z->depth == 16) { + for (k = 0; k < s->img_n && k < 3; ++k) // extra loop test to suppress false GCC warning + tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n && k < 3; ++k) + tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } + + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { + // header scan definitely stops at first IDAT + if (pal_img_n) + s->img_n = pal_img_n; + return 1; + } + if (c.length > (1u << 30)) return stbi__err("IDAT size limit", "IDAT section larger than 2^30 bytes"); + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } + + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + return 1; + } + + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } +} + +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth <= 8) + ri->bits_per_channel = 8; + else if (p->depth == 16) + ri->bits_per_channel = 16; + else + return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; + + return result; +} + +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); +} + +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; +} + +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; +} + +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); +} + +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; +} +#endif + +// Microsoft/Windows BMP image + +#ifndef STBI_NO_BMP +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; +} + +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; +} + + +// returns 0..31 for the highest set bit +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) { n += 16; z >>= 16; } + if (z >= 0x00100) { n += 8; z >>= 8; } + if (z >= 0x00010) { n += 4; z >>= 4; } + if (z >= 0x00004) { n += 2; z >>= 2; } + if (z >= 0x00002) { n += 1;/* >>= 1;*/ } + return n; +} + +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; +} + +// extract an arbitrarily-aligned N-bit value (N=bits) +// from v, and then make it 8-bits long and fractionally +// extend it to full full range. +static int stbi__shiftsigned(unsigned int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; +} + +typedef struct +{ + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; + int extra_read; +} stbi__bmp_data; + +static int stbi__bmp_set_mask_defaults(stbi__bmp_data *info, int compress) +{ + // BI_BITFIELDS specifies masks explicitly, don't override + if (compress == 3) + return 1; + + if (compress == 0) { + if (info->bpp == 16) { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } else if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + // otherwise, use defaults, which is all-0 + info->mr = info->mg = info->mb = info->ma = 0; + } + return 1; + } + return 0; // error +} + +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + info->extra_read = 14; + + if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); + + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + if (compress >= 4) return stbi__errpuc("BMP JPEG/PNG", "BMP type not supported: unsupported compression"); // this includes PNG/JPEG modes + if (compress == 3 && info->bpp != 16 && info->bpp != 32) return stbi__errpuc("bad BMP", "bad BMP"); // bitfields requires 16 or 32 bits/pixel + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + stbi__bmp_set_mask_defaults(info, compress); + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->extra_read += 12; + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + // V4/V5 header + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + if (compress != 3) // override mr/mg/mb unless in BI_BITFIELDS mode, as per docs + stbi__bmp_set_mask_defaults(info, compress); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; +} + + +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); + + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set + + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; + + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - info.extra_read - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - info.extra_read - info.hsz) >> 2; + } + if (psize == 0) { + // accept some number of extra bytes after the header, but if the offset points either to before + // the header ends or implies a large amount of extra data, reject the file as malformed + int bytes_read_so_far = s->callback_already_read + (int)(s->img_buffer - s->img_buffer_original); + int header_limit = 1024; // max we actually read is below 256 bytes currently. + int extra_data_limit = 256*4; // what ordinarily goes here is a palette; 256 entries*4 bytes is its max size. + if (bytes_read_so_far <= 0 || bytes_read_so_far > header_limit) { + return stbi__errpuc("bad header", "Corrupt BMP"); + } + // we established that bytes_read_so_far is positive and sensible. + // the first half of this test rejects offsets that are either too small positives, or + // negative, and guarantees that info.offset >= bytes_read_so_far > 0. this in turn + // ensures the number computed in the second half of the test can't overflow. + if (info.offset < bytes_read_so_far || info.offset - bytes_read_so_far > extra_data_limit) { + return stbi__errpuc("bad offset", "Corrupt BMP"); + } else { + stbi__skip(s, info.offset - bytes_read_so_far); + } + } + + if (info.bpp == 24 && ma == 0xff000000) + s->img_n = 3; + else + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert + + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); + + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - info.extra_read - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } + + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; + + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i]; p1[i] = p2[i]; p2[i] = t; + } + } + } + + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; +} +#endif + +// Targa Truevision - TGA +// by Jonathan Dummer +#ifndef STBI_NO_TGA +// returns STBI_rgb or whatever, 0 on error +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } +} + +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything +} + +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + +errorEnd: + stbi__rewind(s); + return res; +} + +// read 16bit value and convert to 24bit RGB +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); + + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. +} + +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + STBI_NOTUSED(tga_x_origin); // @TODO + STBI_NOTUSED(tga_y_origin); // @TODO + + if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); + + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; + + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); + + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); + + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + if (tga_palette_len == 0) { /* you have to have at least one entry! */ + STBI_FREE(tga_data); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel + + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; + + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } + + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } + + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + STBI_NOTUSED(tga_palette_start); + // OK, done + return tga_data; +} +#endif + +// ************************************************************************************************* +// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; +} + +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; + + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } + + return 1; +} + +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); + + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); + + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); + + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); + + if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); + + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); + + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); + + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); + + // Create the destination image. + + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); + + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; + + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); + + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop + + // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); + + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; + + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } + + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } + + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } + + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + if (comp) *comp = 4; + *y = h; + *x = w; + + return out; +} +#endif + +// ************************************************************************************************* +// Softimage PIC loader +// by Tom Seddon +// +// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format +// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ + +#ifndef STBI_NO_PIC +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; + + return 1; +} + +static int stbi__pic_test_core(stbi__context *s) +{ + int i; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; + + for(i=0;i<84;++i) + stbi__get8(s); + + if (!stbi__pic_is4(s,"PICT")) + return 0; + + return 1; +} + +typedef struct +{ + stbi_uc size,type,channel; +} stbi__pic_packet; + +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; + + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } + + return dest; +} + +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; + + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; +} + +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; + + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); + + packet = &packets[num_packets++]; + + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + + act_comp |= packet->channel; + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + + for(y=0; y<height; ++y) { + int packet_idx; + + for(packet_idx=0; packet_idx < num_packets; ++packet_idx) { + stbi__pic_packet *packet = &packets[packet_idx]; + stbi_uc *dest = result+y*width*4; + + switch (packet->type) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); + + case 0: {//uncompressed + int x; + + for(x=0;x<width;++x, dest+=4) + if (!stbi__readval(s,packet->channel,dest)) + return 0; + break; + } + + case 1://Pure RLE + { + int left=width, i; + + while (left>0) { + stbi_uc count,value[4]; + + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); + + if (count > left) + count = (stbi_uc) left; + + if (!stbi__readval(s,packet->channel,value)) return 0; + + for(i=0; i<count; ++i,dest+=4) + stbi__copyval(packet->channel,dest,value); + left -= count; + } + } + break; + + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); + + if (count >= 128) { // Repeated + stbi_uc value[4]; + + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); + + if (!stbi__readval(s,packet->channel,value)) + return 0; + + for(i=0;i<count;++i, dest += 4) + stbi__copyval(packet->channel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); + + for(i=0;i<count;++i, dest+=4) + if (!stbi__readval(s,packet->channel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } + + return result; +} + +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); + + if (!comp) comp = &internal_comp; + + for (i=0; i<92; ++i) + stbi__get8(s); + + x = stbi__get16be(s); + y = stbi__get16be(s); + + if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' + + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + if (!result) return stbi__errpuc("outofmem", "Out of memory"); + memset(result, 0xff, x*y*4); + + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); + + return result; +} + +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; +} +#endif + +// ************************************************************************************************* +// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb + +#ifndef STBI_NO_GIF +typedef struct +{ + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; +} stbi__gif_lzw; + +typedef struct +{ + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; +} stbi__gif; + +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; +} + +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; +} + +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } +} + +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); + + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; + + if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + + if (is_info) return 1; + + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); + + return 1; +} + +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!g) return stbi__err("outofmem", "Out of memory"); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; +} + +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; + + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); + + if (g->cur_y >= g->max_y) return; + + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; + + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; + + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; + + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } +} + +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; + + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } + + // support no starting clear code + avail = clear+2; + oldcode = -1; + + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } + + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } + + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + + stbi__out_gif_code(g, (stbi__uint16) code); + + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } + + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } +} + +// this function is designed to support animated gifs, although stb_image doesn't support it +// two back is the image from two frames ago, used for a very specific disposal format +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + STBI_NOTUSED(req_comp); + + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) + return stbi__errpuc("too large", "GIF image is too large"); + pcount = g->w * g->h; + g->out = (stbi_uc *) stbi__malloc(4 * pcount); + g->background = (stbi_uc *) stbi__malloc(4 * pcount); + g->history = (stbi_uc *) stbi__malloc(pcount); + if (!g->out || !g->background || !g->history) + return stbi__errpuc("outofmem", "Out of memory"); + + // image is treated as "transparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to the color that was there the previous frame. + memset(g->out, 0x00, 4 * pcount); + memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) + memset(g->history, 0x00, pcount); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispose of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; + + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } + + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } + + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } + + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; + + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; + + // if the width of the specified rectangle is 0, that means + // we may not see *any* pixels or the image is malformed; + // to make sure this is caught, move the current y down to + // max_y (which is what out_gif_code checks). + if (w == 0) + g->cur_y = g->max_y; + + g->lflags = stbi__get8(s); + + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } + + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); + + o = stbi__process_gif_raster(s, g); + if (!o) return NULL; + + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } + + return o; + } + + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } + + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers + + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } +} + +static void *stbi__load_gif_main_outofmem(stbi__gif *g, stbi_uc *out, int **delays) +{ + STBI_FREE(g->out); + STBI_FREE(g->history); + STBI_FREE(g->background); + + if (out) STBI_FREE(out); + if (delays && *delays) STBI_FREE(*delays); + return stbi__errpuc("outofmem", "Out of memory"); +} + +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + int out_size = 0; + int delays_size = 0; + + STBI_NOTUSED(out_size); + STBI_NOTUSED(delays_size); + + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } + + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; + + if (out) { + void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride ); + if (!tmp) + return stbi__load_gif_main_outofmem(&g, out, delays); + else { + out = (stbi_uc*) tmp; + out_size = layers * stride; + } + + if (delays) { + int *new_delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers ); + if (!new_delays) + return stbi__load_gif_main_outofmem(&g, out, delays); + *delays = new_delays; + delays_size = layers * sizeof(int); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + if (!out) + return stbi__load_gif_main_outofmem(&g, out, delays); + out_size = layers * stride; + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + if (!*delays) + return stbi__load_gif_main_outofmem(&g, out, delays); + delays_size = layers * sizeof(int); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } + + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); + + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } +} + +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + STBI_NOTUSED(ri); + + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; + + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } else if (g.out) { + // if there was an error and we allocated an image buffer, free it! + STBI_FREE(g.out); + } + + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); + + return u; +} + +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR loader +// originally by Nicolas Schulz +#ifndef STBI_NO_HDR +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; +} + +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; +} + +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; + + c = (char) stbi__get8(z); + + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } + + buffer[len] = 0; + return buffer; +} + +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } +} + +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); + + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); + + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); + + if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + + *x = width; + *y = height; + + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; + + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); + + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); + + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; + + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } + + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if ((count == 0) || (count > nleft)) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if ((count == 0) || (count > nleft)) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } + + return hdr_data; +} + +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } + + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; +} +#endif // STBI_NO_HDR + +#ifndef STBI_NO_BMP +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; + + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + if (p == NULL) { + stbi__rewind( s ); + return 0; + } + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) { + if (info.bpp == 24 && info.ma == 0xff000000) + *comp = 3; + else + *comp = info.ma ? 4 : 3; + } + return 1; +} +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; +} + +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + STBI_NOTUSED(stbi__get32be(s)); + STBI_NOTUSED(stbi__get32be(s)); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; +} +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } + + stbi__skip(s, 88); + + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } + + stbi__skip(s, 8); + + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; + + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; + + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); + + return 1; +} +#endif + +// ************************************************************************************************* +// Portable Gray Map and Portable Pixel Map loader +// by Ken Miller +// +// PGM: http://netpbm.sourceforge.net/doc/pgm.html +// PPM: http://netpbm.sourceforge.net/doc/ppm.html +// +// Known limitations: +// Does not support comments in the header section +// Does not support ASCII image data (formats P2 and P3) + +#ifndef STBI_NO_PNM + +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; +} + +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); + + ri->bits_per_channel = stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n); + if (ri->bits_per_channel == 0) + return 0; + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + + if (!stbi__mad4sizes_valid(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0)) + return stbi__errpuc("too large", "PNM too large"); + + out = (stbi_uc *) stbi__malloc_mad4(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (!stbi__getn(s, out, s->img_n * s->img_x * s->img_y * (ri->bits_per_channel / 8))) { + STBI_FREE(out); + return stbi__errpuc("bad PNM", "PNM file truncated"); + } + + if (req_comp && req_comp != s->img_n) { + if (ri->bits_per_channel == 16) { + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, s->img_n, req_comp, s->img_x, s->img_y); + } else { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + } + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; +} + +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +} + +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); + + if (stbi__at_eof(s) || *c != '#') + break; + + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } +} + +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; + + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + if((value > 214748364) || (value == 214748364 && *c > '7')) + return stbi__err("integer parse overflow", "Parsing an integer in the PPM header overflowed a 32-bit int"); + } + + return value; +} + +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + stbi__rewind(s); + + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } + + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); + + *x = stbi__pnm_getinteger(s, &c); // read width + if(*x == 0) + return stbi__err("invalid width", "PPM image header had zero or overflowing width"); + stbi__pnm_skip_whitespace(s, &c); + + *y = stbi__pnm_getinteger(s, &c); // read height + if (*y == 0) + return stbi__err("invalid width", "PPM image header had zero or overflowing width"); + stbi__pnm_skip_whitespace(s, &c); + + maxv = stbi__pnm_getinteger(s, &c); // read max value + if (maxv > 65535) + return stbi__err("max value > 65535", "PPM image supports only 8-bit and 16-bit images"); + else if (maxv > 255) + return 16; + else + return 8; +} + +static int stbi__pnm_is16(stbi__context *s) +{ + if (stbi__pnm_info(s, NULL, NULL, NULL) == 16) + return 1; + return 0; +} +#endif + +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif + + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); +} + +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_is16(s)) return 1; + #endif + return 0; +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; +} + +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + fseek(f,pos,SEEK_SET); + return r; +} + +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; +} + +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + fseek(f,pos,SEEK_SET); + return r; +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); +} + +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); +} + +#endif // STB_IMAGE_IMPLEMENTATION + +/* + revision history: + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug + 1-bit BMP + *_is_16_bit api + avoid warnings + 2.16 (2017-07-23) all functions have 16-bit variants; + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes + 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) allocate large structures on the stack + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) + 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED + 2.09 (2016-01-16) allow comments in PNM files + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup + 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA + 2.07 (2015-09-13) fix compiler warnings + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA + 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value + 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning + 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit + 2.03 (2015-04-12) extra corruption checking (mmozeiko) + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support + 2.02 (2015-01-19) fix incorrect assert, fix warning + 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 + 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG + 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* + 1.48 (2014-12-14) fix incorrectly-named assert() + 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) + 1.46 (2014-08-26) + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + 1.45 (2014-08-16) + fix MSVC-ARM internal compiler error by wrapping malloc + 1.44 (2014-08-07) + various warning fixes from Ronny Chevalier + 1.43 (2014-07-15) + fix MSVC-only compiler problem in code changed in 1.42 + 1.42 (2014-07-09) + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h + 1.41 (2014-06-25) + fix search&replace from 1.36 that messed up comments/error messages + 1.40 (2014-06-22) + fix gcc struct-initialization warning + 1.39 (2014-06-15) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) + 1.38 (2014-06-06) + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O + 1.37 (2014-06-04) + remove duplicate typedef + 1.36 (2014-06-03) + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + 1.35 (2014-05-27) + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine + 1.34 (unknown) + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + 1.33 (2011-07-14) + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + 1.32 (2011-07-13) + support for "info" function for all supported filetypes (SpartanJ) + 1.31 (2011-06-20) + a few more leak fixes, bug in PNG handling (SpartanJ) + 1.30 (2011-06-11) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) + 1.29 (2010-08-16) + various warning fixes from Aurelien Pocheville + 1.28 (2010-08-01) + fix bug in GIF palette transparency (SpartanJ) + 1.27 (2010-08-01) + cast-to-stbi_uc to fix warnings + 1.26 (2010-07-24) + fix bug in file buffering for PNG reported by SpartanJ + 1.25 (2010-07-17) + refix trans_data warning (Won Chun) + 1.24 (2010-07-12) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) + 1.23 fixed bug in iPhone support + 1.22 (2010-07-10) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + 1.21 fix use of 'stbi_uc' in header (reported by jon blow) + 1.20 added support for Softimage PIC, by Tom Seddon + 1.19 bug in interlaced PNG corruption check (found by ryg) + 1.18 (2008-08-02) + fix a threading bug (local mutable static) + 1.17 support interlaced PNG + 1.16 major bugfix - stbi__convert_format converted one too many pixels + 1.15 initialize some fields for thread safety + 1.14 fix threadsafe conversion bug + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + 1.13 threadsafe + 1.12 const qualifiers in the API + 1.11 Support installable IDCT, colorspace conversion routines + 1.10 Fixes for 64-bit (don't use "unsigned long") + optimized upsampling by Fabian "ryg" Giesen + 1.09 Fix format-conversion for PSD code (bad global variables!) + 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz + 1.07 attempt to fix C++ warning/errors again + 1.06 attempt to fix C++ warning/errors again + 1.05 fix TGA loading to return correct *comp and use good luminance calc + 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free + 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR + 1.02 support for (subset of) HDR files, float interface for preferred access to them + 1.01 fix bug: possible bug in handling right-side up bmps... not sure + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + 1.00 interface to zlib that skips zlib header + 0.99 correct handling of alpha in palette + 0.98 TGA loader by lonesock; dynamically add loaders (untested) + 0.97 jpeg errors on too large a file; also catch another malloc failure + 0.96 fix detection of invalid v value - particleman@mollyrocket forum + 0.95 during header scan, seek to markers in case of padding + 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same + 0.93 handle jpegtran output; verbose errors + 0.92 read 4,8,16,24,32-bit BMP files of several formats + 0.91 output 24-bit Windows 3.0 BMP files + 0.90 fix a few more warnings; bump version number to approach 1.0 + 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd + 0.60 fix compiling as c++ + 0.59 fix warnings: merge Dave Moore's -Wall fixes + 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian + 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available + 0.56 fix bug: zlib uncompressed mode len vs. nlen + 0.55 fix bug: restart_interval not initialized to 0 + 0.54 allow NULL for 'int *comp' + 0.53 fix bug in png 3->4; speedup png decoding + 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments + 0.51 obey req_comp requests, 1-component jpegs return as 1-component, + on 'test' only check type, not whether we support this variant + 0.50 (2006-11-19) + first released version +*/ + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/Rend/demos/teapot/texture.frag.spv b/Rend/demos/teapot/texture.frag.spv Binary files differnew file mode 100644 index 0000000..09a2e00 --- /dev/null +++ b/Rend/demos/teapot/texture.frag.spv diff --git a/Rend/demos/teapot/texture.vert.spv b/Rend/demos/teapot/texture.vert.spv Binary files differnew file mode 100644 index 0000000..9e6c442 --- /dev/null +++ b/Rend/demos/teapot/texture.vert.spv diff --git a/Rend/demos/teapot/wal.jpg b/Rend/demos/teapot/wal.jpg Binary files differnew file mode 100644 index 0000000..d30a9a2 --- /dev/null +++ b/Rend/demos/teapot/wal.jpg diff --git a/Rend/nogl.h b/Rend/nogl.h new file mode 100644 index 0000000..ab45c90 --- /dev/null +++ b/Rend/nogl.h @@ -0,0 +1,141 @@ +/* +Ideas for Rend 2.0 aka NoGL +Inspiried by https://www.sebastianaaltonen.com/blog/no-graphics-api + +## Style Guide + +### Order of Code + +1. Includes. +2. Macros. +3. Types. +4. Function declarations. +5. Global variables. +6. Function definitions. + +### Naming Conventions + +1. Use snake_case for variables and functions. +2. Functions in the format `module_type_action`: + - `ui_align_left` + - `ui_button_create` + - `pl_window_size` + 3. Types are in PascalCase, prefixed also by the module name. + - `UI_Align`, `PL_Window`. + 4. Macros are in UPPERCASE_SNAKE_CASE. + +*/ + +#include <stddef.h> +#include <stdint.h> + +typedef struct NOGL_CommandBufferSpan { + struct NOGL_CommandBuffer* data; + size_t count; +} NOGL_CommandBufferSpan; + +typedef enum NOGL_Memory { + NOGL_MEMORY_DEFAULT, + NOGL_MEMORY_UPLOAD, + NOGL_MEMORY_READBACK, +} NOGL_Memory; + +typedef enum NOGL_Stage { + NOGL_STAGE_NONE, + NOGL_STAGE_TRANSFER, + NOGL_STAGE_COMPUTE, + NOGL_STAGE_VERTEX, + NOGL_STAGE_PIXEL, +} NOGL_Stage; + +typedef enum NOGL_Op { + NOGL_OP_EQUAL, + NOGL_OP_NOT_EQUAL, + NOGL_OP_GREATER, + NOGL_OP_GREATER_EQUAL, + NOGL_OP_LESS, + NOGL_OP_LESS_EQUAL, +} NOGL_Op; + +typedef enum NOGL_Signal { + NOGL_SIGNAL_FENCE, + NOGL_SIGNAL_TIMELINE, +} NOGL_Signal; + +typedef uint32_t NOGL_HazardFlags; + +typedef struct NOGL_TextureDesc NOGL_TextureDesc; +typedef struct NOGL_ViewDesc NOGL_ViewDesc; +typedef struct NOGL_RasterDesc NOGL_RasterDesc; +typedef struct NOGL_DepthStencilDesc NOGL_DepthStencilDesc; +typedef struct NOGL_BlendDesc NOGL_BlendDesc; +typedef struct NOGL_RenderPassDesc NOGL_RenderPassDesc; + +typedef struct NOGL_TextureSizeAlign { + size_t size; + size_t align; +} NOGL_TextureSizeAlign; + +typedef struct NOGL_Texture { uint64_t handle; } NOGL_Texture; +typedef struct NOGL_TextureDescriptor { uint64_t handle; } NOGL_TextureDescriptor; +typedef struct NOGL_Pipeline { uint64_t handle; } NOGL_Pipeline; +typedef struct NOGL_DepthStencilState { uint64_t handle; } NOGL_DepthStencilState; +typedef struct NOGL_BlendState { uint64_t handle; } NOGL_BlendState; +typedef struct NOGL_Queue { uint64_t handle; } NOGL_Queue; +typedef struct NOGL_CommandBuffer { uint64_t handle; } NOGL_CommandBuffer; +typedef struct NOGL_Semaphore { uint64_t handle; } NOGL_Semaphore; + +void* nogl_mem_alloc(size_t bytes, NOGL_Memory memory = NOGL_MEMORY_DEFAULT); +void* nogl_mem_alloc_aligned(size_t bytes, size_t align, NOGL_Memory memory = NOGL_MEMORY_DEFAULT); +void nogl_mem_free(void* ptr); +void* nogl_mem_host_to_device_ptr(void* ptr); + +NOGL_TextureSizeAlign nogl_texture_size_align(NOGL_TextureDesc desc); +NOGL_Texture nogl_texture_create(NOGL_TextureDesc desc, void* ptr_gpu); +NOGL_TextureDescriptor nogl_texture_view_descriptor(NOGL_Texture texture, NOGL_ViewDesc desc); +NOGL_TextureDescriptor nogl_texture_rw_view_descriptor(NOGL_Texture texture, NOGL_ViewDesc desc); + +NOGL_Pipeline nogl_pipeline_create_compute_spirv(uint8_t *bytes, size_t size); +NOGL_Pipeline nogl_pipeline_create_graphics_spirv(uint8_t *vertex_bytes, size_t vertex_size, uint8_t *frag_bytes, size_t frag_size, NOGL_RasterDesc desc); +NOGL_Pipeline nogl_pipeline_create_meshlet_spirv(uint8_t *meshlet_bytes, size_t meshlet_size, uint8_t *frag_bytes, size_t frag_size, NOGL_RasterDesc desc); +void nogl_pipeline_destroy(NOGL_Pipeline pipeline); + +NOGL_DepthStencilState nogl_depth_stencil_state_create(NOGL_DepthStencilDesc desc); +NOGL_BlendState nogl_blend_state_create(NOGL_BlendDesc desc); +void nogl_depth_stencil_state_free(NOGL_DepthStencilState state); +void nogl_blend_state_free(NOGL_BlendState state); + +NOGL_Queue nogl_queue_create(/* device & queue creation details omitted */); +NOGL_CommandBuffer nogl_command_buffer_start(NOGL_Queue queue); +void nogl_queue_submit(NOGL_Queue queue, NOGL_CommandBufferSpan command_buffers); + +NOGL_Semaphore nogl_semaphore_create(uint64_t init_value); +void nogl_semaphore_wait(NOGL_Semaphore sema, uint64_t value); +void nogl_semaphore_destroy(NOGL_Semaphore sema); + +void nogl_cmd_mem_copy(NOGL_CommandBuffer cb, void* dest_gpu, void* src_gpu, size_t bytes); +void nogl_cmd_copy_to_texture(NOGL_CommandBuffer cb, void* dest_gpu, void* src_gpu, NOGL_Texture texture); +void nogl_cmd_copy_from_texture(NOGL_CommandBuffer cb, void* dest_gpu, void* src_gpu, NOGL_Texture texture); + +void nogl_cmd_set_active_texture_heap_ptr(NOGL_CommandBuffer cb, void* ptr_gpu); + +void nogl_cmd_barrier(NOGL_CommandBuffer cb, NOGL_Stage before, NOGL_Stage after, NOGL_HazardFlags hazards = 0); +void nogl_cmd_signal_after(NOGL_CommandBuffer cb, NOGL_Stage before, void* ptr_gpu, uint64_t value, NOGL_Signal signal); +void nogl_cmd_wait_before(NOGL_CommandBuffer cb, NOGL_Stage after, void* ptr_gpu, uint64_t value, NOGL_Op op, NOGL_HazardFlags hazards, uint64_t mask); + +void nogl_cmd_set_pipeline(NOGL_CommandBuffer cb, NOGL_Pipeline pipeline); +void nogl_cmd_set_depth_stencil_state(NOGL_CommandBuffer cb, NOGL_DepthStencilState state); +void nogl_cmd_set_blend_state(NOGL_CommandBuffer cb, NOGL_BlendState state); + +void nogl_cmd_dispatch(NOGL_CommandBuffer cb, void* data_gpu, uint32_t count_x, uint32_t count_y, uint32_t count_z); +void nogl_cmd_dispatch_indirect(NOGL_CommandBuffer cb, void* data_gpu, void* grid_dimensions_gpu); + +void nogl_cmd_render_pass_begin(NOGL_CommandBuffer cb, NOGL_RenderPassDesc desc); +void nogl_cmd_render_pass_end(NOGL_CommandBuffer cb); + +void nogl_cmd_draw_indexed_instanced(NOGL_CommandBuffer cb, void* vertex_data_gpu, void* pixel_data_gpu, void* indices_gpu, uint32_t index_count, uint32_t instance_count); +void nogl_cmd_draw_indexed_instanced_indirect(NOGL_CommandBuffer cb, void* vertex_data_gpu, void* pixel_data_gpu, void* indices_gpu, void* args_gpu); +void nogl_cmd_draw_indexed_instanced_indirect_multi(NOGL_CommandBuffer cb, void* data_vx_gpu, uint32_t vx_stride, void* data_px_gpu, uint32_t px_stride, void* args_gpu, void* draw_count_gpu); + +void nogl_cmd_draw_meshlets(NOGL_CommandBuffer cb, void* meshlet_data_gpu, void* pixel_data_gpu, uint32_t count_x, uint32_t count_y, uint32_t count_z); +void nogl_cmd_draw_meshlets_indirect(NOGL_CommandBuffer cb, void* meshlet_data_gpu, void* pixel_data_gpu, void* dim_gpu); diff --git a/Rend/podium.h b/Rend/podium.h new file mode 100644 index 0000000..517774e --- /dev/null +++ b/Rend/podium.h @@ -0,0 +1,2282 @@ +/* ===========================================================================
+ * PODIUM - The Finished Platform Layer - Copyright (c) 2026 Vasco Alves
+ *
+ * ---------------------------------------------------------------------------
+ * To stand on the shoulders of giants...
+ * Giants must stand still!"
+ * - Eskil Steenberg - "You should finish your software" – BSC 2025
+ * ---------------------------------------------------------------------------
+ *
+ * PREFIX: P_ (types) or p_ (functions & variables)
+ *
+ * GOAL:
+ * Replace the standard library, always talk to the os directly.
+ * Besides some optimization and security benefits. Obviously some standard
+ * library functions are highly optimized, namely memory and math
+ * into our code and debug it. Still a lot is left to be desired
+ * and so this library includes it via "modules" which can be imported
+ * by flags.
+ *
+ * DESIGN:
+ * The API is finished. It's done. Newer modules may be added in the future
+ * but that should not change the underlying core. New platforms may also
+ * be added, but the API stays the same.
+ *
+ * COMPILE TIME FLAGS
+ * | Name | Description |
+ * |-----------------|---------------------------------------------------------|
+ * | PODIUM_WIN32 | Used to explicitly compile for Windows. |
+ * | PODIUM_LINUX | Used to explicitly compile for Linux and FreeBSD. |
+ *
+ * MODULES
+ * | Name | Description |
+ * |-----------------|---------------------------------------------------------|
+ * | P_MODULE_VULKAN | Gives access to vulkan related utilities. |
+ * | P_MODULE_STRING | Include string manipulation utilities. |
+ * | P_MODULE_MATH | Trigonometry and linear algebra functions. |
+ * | P_MODULE_ALLOC | Memory allocators: Arena, Stack & Pool. |
+ *
+ * =========================================================================== */
+
+#ifndef _PODIUM_H_
+#define _PODIUM_H_
+
+#define PODIUM_MAJOR "0" // needs more revisions and use to reach 1.0 status
+#define PODIUM_MINOR "2" // vulkan module
+#define PODIUM_PATCH "2" // gamepad
+
+#define POAPI static inline
+#define PODEF static inline
+
+/*
+ * Auto-detect platforms.
+ */
+
+/* Windows */
+#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__TOS_WIN__)
+ #define PODIUM_WIN32
+ #ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+ #endif
+/* Apple */
+#elif defined(__APPLE__) || defined(__MACH__)
+ #include <TargetConditionals.h>
+ #define PODIUM_APPLE
+ #if TARGET_OS_IPHONE
+ #define PODIUM_IOS
+ #else
+ #define PODIUM_MACOS
+ #endif
+/* Linux / BSD */
+#elif defined(__linux__) || defined(__FreeBSD__)
+ #define PODIUM_LINUX
+ #ifndef _POSIX_C_SOURCE
+ #define _POSIX_C_SOURCE 200112L
+ #endif
+#endif
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <string.h> /* memcpy */
+#include <stdio.h> /* vsnprintf */
+
+/*
+ * NOTE: The <REPLACE> comments are used by the build
+ * script to know what includes to inline into the
+ * final single header file!
+ */
+
+/* --- Start of p_types.h --- */
+#ifndef _PODIUM_TYPES_
+#define _PODIUM_TYPES_
+
+#define NANOS_PER_SEC (1000*1000*1000)
+#define P_PI_HALF 1.57079632679f
+#define P_PI 3.14159265f
+#define P_PI2 6.28318531f
+#define P_PI_POW2 9.86960440f
+
+#ifdef NDEBUG
+ #define assert(x) ((void)0)
+#else
+ #ifndef assert
+ #define assert(x) \
+ do { \
+ if (!(x)) { \
+ __builtin_trap(); \
+ } \
+ } while (0)
+ #endif
+#endif
+
+#ifndef BUFSIZ
+ #define BUFSIZ 8192
+#endif
+
+typedef unsigned char u8;
+typedef signed char i8;
+typedef unsigned short u16;
+typedef short i16;
+typedef unsigned int u32;
+typedef int i32;
+typedef unsigned long long u64;
+typedef long long i64;
+typedef float f32;
+typedef double f64;
+
+#ifndef __cplusplus
+#define bool _Bool
+#define false 0
+#define true 1
+#endif
+
+/* C++ uses static_assert, C11 uses _Static_assert */
+#ifdef __cplusplus
+ #define STATIC_ASSERT static_assert
+#else
+ #define STATIC_ASSERT _Static_assert
+#endif
+
+STATIC_ASSERT(sizeof(u8) == 1, "u8 must be 1 byte");
+STATIC_ASSERT(sizeof(u16) == 2, "u16 must be 2 bytes");
+STATIC_ASSERT(sizeof(u32) == 4, "u32 must be 4 bytes");
+STATIC_ASSERT(sizeof(u64) == 8, "u64 must be 8 bytes");
+
+STATIC_ASSERT(sizeof(i8) == 1, "i8 must be 1 byte");
+STATIC_ASSERT(sizeof(i16) == 2, "i16 must be 2 bytes");
+STATIC_ASSERT(sizeof(i32) == 4, "i32 must be 4 bytes");
+STATIC_ASSERT(sizeof(i64) == 8, "i64 must be 8 bytes");
+
+STATIC_ASSERT(sizeof(f32) == 4, "f32 must be 4 bytes");
+STATIC_ASSERT(sizeof(f64) == 8, "f64 must be 8 bytes");
+#define U8_MAX 255
+#define U16_MAX 65535
+#define U32_MAX 4294967295
+
+/* Architecture specific sizing */
+#if defined(__x86_64__) || defined(__aarch64__) || defined(_M_X64)
+ typedef u64 usize;
+ typedef u64 uintptr;
+ typedef u32 idx;
+ STATIC_ASSERT(sizeof(usize) == 8, "usize must be 8 bytes on 64-bit");
+#else
+ typedef u32 usize;
+ typedef u32 uintptr;
+ typedef u16 idx;
+ STATIC_ASSERT(sizeof(usize) == 4, "usize must be 4 bytes on 32-bit");
+#endif
+
+#ifndef NULL
+ #ifdef __cplusplus
+ #define NULL 0
+ #else
+ #define NULL ((void*)0)
+ #endif
+#endif
+
+#endif // _PODIUM_TYPES_
+/* --- End of p_types.h --- */
+/* --- Start of p_log.h --- */
+/*
+ * Logging!
+ */
+
+#include <stdlib.h>
+
+#ifdef DEBUG
+#define LOG_DEBUG(...) PRINTF(__VA_ARGS__)
+#else
+#define LOG_DEBUG(...) ((void)0)
+#endif
+
+/* fatal and error always enabled */
+#define PFATAL(message, ...) p_log_printf(P_LOG_LEVEL_FATAL, message, ##__VA_ARGS__)
+#define PERROR(message, ...) p_log_printf(P_LOG_LEVEL_ERROR, message, ##__VA_ARGS__)
+
+/* warn and info enabled by default but can be disabled */
+#define P_LOG_WARN_ENABLED 1
+#define P_LOG_INFO_ENABLED 1
+
+#if P_LOG_WARN_ENABLED == 1
+#define PWARN(message, ...) p_log_printf(P_LOG_LEVEL_WARN, message, ##__VA_ARGS__)
+#else
+#define PWARN(message, ...)
+#endif
+
+#if P_LOG_INFO_ENABLED == 1
+#define PINFO(message, ...) p_log_printf(P_LOG_LEVEL_INFO, message, ##__VA_ARGS__)
+#else
+#define PINFO(message, ...)
+#endif
+
+#if P_LOG_DEBUG_ENABLED == 1
+#define PDEBUG(message, ...) p_log_printf(P_LOG_LEVEL_DEBUG, message, ##__VA_ARGS__)
+#else
+#define PDEBUG(message, ...)
+#endif
+
+#if P_LOG_TRACE_ENABLED == 1
+#define PTRACE(message, ...) p_log_printf(P_LOG_LEVEL_TRACE, message, ##__VA_ARGS__)
+#else
+#define PTRACE(message, ...)
+#endif
+
+typedef enum P_Log_Level {
+ P_LOG_LEVEL_FATAL = 0,
+ P_LOG_LEVEL_ERROR,
+ P_LOG_LEVEL_WARN,
+ P_LOG_LEVEL_INFO,
+ P_LOG_LEVEL_DEBUG,
+ P_LOG_LEVEL_TRACE,
+ P_COUNT_LOG_LEVEL
+} P_Log_Level;
+
+#define P_PREFIX_LEN 7
+static const char *p_prefix[P_COUNT_LOG_LEVEL] = {
+ [P_LOG_LEVEL_FATAL] = "[FATAL]",
+ [P_LOG_LEVEL_ERROR] = "[ERROR]",
+ [P_LOG_LEVEL_WARN] = "[WARNI]",
+ [P_LOG_LEVEL_INFO] = "[INFOR]",
+ [P_LOG_LEVEL_DEBUG] = "[DEBUG]",
+ [P_LOG_LEVEL_TRACE] = "[TRACE]",
+};
+
+#define P_MAX_ALLOCS 512
+
+typedef struct P_DebugMemoryInfo {
+ void *ptr;
+ size_t size;
+ const char *file;
+ const char *func;
+ int line;
+} P_DebugMemoryInfo;
+
+static uint64_t p_alloc_count = 0;
+static P_DebugMemoryInfo p_ptr_array[P_MAX_ALLOCS];
+
+static inline void *
+p_debug_malloc_impl(size_t size, const char *file, int line, const char *func)
+{
+ void *ptr = malloc(size);
+ printf("[ALLOC] %p (%zu bytes) -> %s:%d %s()\n", ptr, size, file, line, func);
+
+ if (ptr) {
+ if (p_alloc_count < P_MAX_ALLOCS) {
+ p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){
+ .ptr = ptr,
+ .size = size,
+ .file = file,
+ .func = func,
+ .line = line
+ };
+ } else {
+ fprintf(stderr, "[ERROR] Debug allocator tracking capacity (%d) exceeded!\n", P_MAX_ALLOCS);
+ }
+ }
+ return ptr;
+}
+
+static inline void
+p_debug_free_impl(void *ptr, const char *file, int line, const char *func)
+{
+ printf("[FREE] %p -> %s:%d %s()\n", ptr, file, line, func);
+
+ if (!ptr) return; // Standard C allows free(NULL)
+
+ bool found = false;
+ uint64_t index = 0;
+
+ /* Find allocation metadata */
+ for (index = 0; index < p_alloc_count; ++index) {
+ if (p_ptr_array[index].ptr == ptr) {
+ found = true;
+ break;
+ }
+ }
+
+ if (found) {
+ /* Shift array left to remove tracked struct */
+ for (uint64_t j = index; j < p_alloc_count - 1; ++j) {
+ p_ptr_array[j] = p_ptr_array[j + 1];
+ }
+ p_alloc_count--;
+ } else {
+ fprintf(stderr, "[WARNING] Attempted to free untracked/double-freed pointer %p at %s:%d %s()\n",
+ ptr, file, line, func);
+ }
+
+ free(ptr);
+}
+
+static inline void *
+p_debug_realloc_impl(void *ptr, size_t size, const char *file, int line, const char *func)
+{
+ if (!ptr) {
+ return p_debug_malloc_impl(size, file, line, func);
+ }
+ if (size == 0) {
+ p_debug_free_impl(ptr, file, line, func);
+ return NULL;
+ }
+
+ void *new_ptr = realloc(ptr, size);
+ printf("[REALLOC] %p -> %p (%zu bytes) -> %s:%d %s()\n", ptr, new_ptr, size, file, line, func);
+
+ if (new_ptr) {
+ bool found = false;
+ for (uint64_t i = 0; i < p_alloc_count; ++i) {
+ if (p_ptr_array[i].ptr == ptr) {
+ p_ptr_array[i].ptr = new_ptr;
+ p_ptr_array[i].size = size;
+ p_ptr_array[i].file = file;
+ p_ptr_array[i].line = line;
+ p_ptr_array[i].func = func;
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ if (p_alloc_count < P_MAX_ALLOCS) {
+ p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){
+ .ptr = new_ptr,
+ .size = size,
+ .file = file,
+ .func = func,
+ .line = line
+ };
+ }
+ }
+ }
+ return new_ptr;
+}
+
+static void
+p_debug_memory_report(void)
+{
+ printf("\n==================== MEMORY REPORT ====================\n");
+ printf("Remaining unfreed allocations: %lu\n", (unsigned long)p_alloc_count);
+
+ for (uint64_t i = 0; i < p_alloc_count; ++i) {
+ P_DebugMemoryInfo *info = &p_ptr_array[i];
+ printf("[LEAK] %p (%zu bytes) allocated at %s:%d in %s()\n",
+ info->ptr, info->size, info->file, info->line, info->func);
+ }
+ printf("=======================================================\n");
+}
+/* --- End of p_log.h --- */
+/* --- Start of p_ds.h --- */
+#define DEFAULT_ALIGNMENT (2 * sizeof(void *))
+#define ARRAY_GROW_FACTOR 2
+
+typedef struct {
+ u32 size;
+ u32 capacity;
+} DynamicArrayHeader;
+
+#define DARRAY_INIT_CAPACITY 64
+#define p_darray_push(array, var) \
+ do { \
+ if (array == NULL) { \
+ DynamicArrayHeader *header = \
+ malloc(DARRAY_INIT_CAPACITY * sizeof *array + sizeof *header); \
+ header->size = 0; \
+ header->capacity = DARRAY_INIT_CAPACITY; \
+ array = (void *)(header + 1); \
+ } \
+ DynamicArrayHeader *header = (DynamicArrayHeader *)(array) - 1; \
+ if (header->size >= header->capacity - 1) { \
+ unsigned long new_capacity = header->capacity * 2; \
+ DynamicArrayHeader *new_header = \
+ realloc(header, new_capacity * sizeof *array + sizeof *header); \
+ if (!new_header) \
+ break; \
+ header = new_header; \
+ array = (void *)(header + 1); \
+ header->capacity = new_capacity; \
+ } \
+ (array)[header->size++] = var; \
+ } while (0)
+
+#define p_darray_len(array) ((array) ? ((DynamicArrayHeader *)(array) - 1)->size : 0)
+#define p_darray_destroy(array) \
+{ \
+ free((DynamicArrayHeader *)(array) - 1); \
+}
+
+#define p_darray_shrink(array) \
+ do { \
+ DynamicArrayHeader *header = (array) ? ((DynamicArrayHeader *)(array) - 1) : 0;\
+ if (header) {\
+ if (header->capacity > 4) {\
+ unsigned long new_capacity = (header->capacity >> 1) + (header->capacity & 1); \
+ void *new_header = realloc(header, new_capacity * sizeof *array + sizeof *header); \
+ if (!new_header) break; \
+ header = new_header; \
+ array = (void *)(header + 1); \
+ header->capacity = new_capacity; \
+ }\
+ }\
+ } while (0)
+/* --- End of p_ds.h --- */
+
+/*
+ * Main Platform Types (Keyboard, Events, Context, etc.)
+ */
+
+typedef enum {
+ P_KEYMOD_ALT = 0,
+ P_KEYMOD_SHIFT,
+ P_KEYMOD_CTRL,
+ P_KEYMOD_CAPS,
+} P_KeyMod;
+
+typedef enum {
+ P_KEY_UNKNOWN = 0,
+ P_KEY_UP, P_KEY_DOWN, P_KEY_LEFT, P_KEY_RIGHT,
+ P_KEY_SPACE, P_KEY_ESCAPE, P_KEY_ENTER,
+ P_KEY_A, P_KEY_B, P_KEY_C, P_KEY_D, P_KEY_E, P_KEY_F, P_KEY_G, P_KEY_H, P_KEY_I,
+ P_KEY_J, P_KEY_K, P_KEY_L, P_KEY_M, P_KEY_N, P_KEY_O, P_KEY_P, P_KEY_Q, P_KEY_R,
+ P_KEY_S, P_KEY_T, P_KEY_U, P_KEY_V, P_KEY_W, P_KEY_X, P_KEY_Y, P_KEY_Z,
+} P_KeyCode;
+
+/* Platform event type */
+typedef enum {
+ P_EVENT_NONE = 0,
+ P_EVENT_KEY_DOWN,
+ P_EVENT_KEY_UP,
+ P_EVENT_WINDOW_CLOSE,
+ P_EVENT_WINDOW_RESIZE,
+ P_EVENT_POINTER,
+ P_EVENT_CONTROLLER_CONNECTED,
+ P_EVENT_CONTROLLER_DISCONNECTED,
+} P_EvenType;
+
+typedef enum {
+ P_POINTER_MOVED = 0,
+ P_POINTER_PRESSED,
+ P_POINTER_RELEASED
+} P_PointerState;
+
+typedef struct {
+ P_EvenType type;
+ union {
+ struct {P_KeyCode key; P_KeyMod mod; } key;
+ struct { u32 width, height; } resize;
+ struct { P_PointerState state; u32 button; u32 x, y; } pointer;
+ };
+} P_Event;
+
+/*
+ * Platform dependent functions to be implemented by each layer.
+ */
+
+POAPI u64 p_get_time(void); // Get time in nanoseconds.
+POAPI void p_sleep_ns(i64 ns); // Sleep for nanoseconds.
+
+POAPI void p_stdout(void *msg, usize bytes); // Print buffer to stdout.
+PODEF void p_log_printf(P_Log_Level level, const char* src, ...); // Print buffer to stdout.
+
+
+POAPI void* p_file_alloc(const char *path, unsigned long *buf_size);
+POAPI bool p_file_exists(const char *path); // Check if file exists.
+POAPI usize p_file_size(const char *path); // Check file size.
+POAPI void p_file_load(const char *path, void *buf_ptr, unsigned long buf_size); // Load file to buffer.
+PODEF void p_file_write(const char *path, void *buf_ptr, unsigned long buf_size); // Write buffer to file.
+
+typedef struct P_Window_Impl P_Window;
+POAPI bool p_window_open(P_Window *win, int width, int height, const char *title); // Opens a window. Returns false on failure.
+POAPI void p_window_close(P_Window *win); // Close window.
+POAPI bool p_window_is_open(P_Window *win); // Check if window is open.
+POAPI void p_window_size(P_Window *win, int *window_width, int *window_height); // Get window size.
+POAPI void p_window_draw(P_Window *win, u32 *pixels, int width, int height); // Draw directly to the window's buffer. Normally much slower than using the GPU.
+POAPI bool p_window_poll_event(P_Window *win, P_Event *ev); // Returns true while there are events to poll. Write event data to a pointer.
+
+POAPI void p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc);
+POAPI void p_audio_quit();
+POAPI void p_audio_write(const i16 *samples, usize count);
+
+/*
+ * The Vulkan Module is platform specific
+ */
+
+#ifdef P_MODULE_VULKAN
+#include <vulkan/vulkan.h>
+POAPI char** p_vulkan_get_extensions();
+POAPI bool p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface);
+#endif
+
+/*
+ * The Remaining Modules are PLATFORM INDEPENDENT!
+ */
+
+#ifdef P_MODULE_STRING
+/* --- Start of p_string.h --- */
+typedef struct {
+ const char *cstr;
+ u32 len;
+} P_StringView;
+
+typedef struct {
+ P_StringView sv;
+} P_StringBuilder;
+
+/* Classic C string functions */
+PODEF char* p_find_char(char *buf, char needle);
+PODEF bool p_strcmp(const char *a, const char *b);
+PODEF int p_strlen(const char *a);
+PODEF int p_strtoi(const char *str);
+PODEF char* p_strtok(const char *str, char c);
+
+/* String views */
+PODEF P_StringView p_strview(const char *cstr);
+PODEF void p_strview_chop_left(P_StringView *sv, u32 n);
+PODEF void p_strview_chop_right(P_StringView *sv, u32 n);
+PODEF P_StringView p_strview_chop_delim(P_StringView *sv, char delim);
+PODEF P_StringView p_strview_chop_type(P_StringView *sv, int(*istype)(int));
+PODEF void p_strview_trim_left(P_StringView *sv);
+PODEF void p_strview_trim_right(P_StringView *sv);
+PODEF void p_strview_trim(P_StringView *sv);
+
+/* Classification */
+PODEF int p_is_space(int c);
+PODEF int p_is_digit(int c);
+PODEF int p_is_alpha(int c);
+PODEF int p_is_alnum(int c);
+PODEF int p_is_upper(int c);
+PODEF int p_is_lower(int c);
+PODEF int p_is_hex(int c);
+
+/* Transformation */
+PODEF int p_to_lower(int c);
+PODEF int p_to_upper(int c);
+/* --- End of p_string.h --- */
+#endif
+
+#ifdef P_MODULE_MATH
+/* --- Start of p_math.h --- */
+typedef struct {int x, y; } Vec2i;
+typedef struct {float x, y; } Vec2f;
+typedef struct {float x, y, z; } Vec3f;
+typedef struct { float m[16];} P_Mat4; // column-major: m[col * 4 + row]
+PODEF int p_ceil(float x);
+PODEF float p_cosf(float x);
+PODEF float p_sinf(float x);
+
+PODEF Vec2f p_vec2f(float, float);
+PODEF Vec2f p_vec2f_add(Vec2f, Vec2f);
+PODEF float p_vec2f_cross(Vec2f, Vec2f);
+PODEF float p_vec2f_dot(Vec2f, Vec2f);
+PODEF Vec2f p_vec2f_mult(Vec2f a, float b);
+PODEF Vec2f p_vec2f_sub(Vec2f, Vec2f);
+PODEF Vec2i p_vec2i(float, float);
+PODEF Vec2i p_vec2i_add(Vec2i, Vec2i);
+PODEF float p_vec2i_cross(Vec2i, Vec2i);
+PODEF float p_vec2i_dot(Vec2i, Vec2i);
+PODEF Vec2i p_vec2i_mult(Vec2i a, float b);
+PODEF Vec2i p_vec2i_sub(Vec2i, Vec2i);
+
+PODEF Vec3f p_vec3f(float, float, float);
+
+PODEF P_Mat4 p_mat4_identity(void);
+PODEF P_Mat4 p_mat4_mul(P_Mat4 a, P_Mat4 b);
+PODEF P_Mat4 p_mat4_translate(Vec3f v);
+PODEF P_Mat4 p_mat4_translate_by(P_Mat4 m, Vec3f v);
+PODEF P_Mat4 p_mat4_rotate_x(float rad);
+PODEF P_Mat4 p_mat4_rotate_x_by(P_Mat4 m, float rad);
+PODEF P_Mat4 p_mat4_rotate_y(float rad);
+PODEF P_Mat4 p_mat4_rotate_y_by(P_Mat4 m, float rad);
+PODEF P_Mat4 p_mat4_rotate_z(float rad);
+PODEF P_Mat4 p_mat4_perspective(float fov_rad, float aspect, float near_z, float far_z);
+/* --- End of p_math.h --- */
+#endif
+
+#ifdef P_MODULE_ALLOC
+/* --- Start of p_allocators.h --- */
+typedef struct Arena {
+ unsigned char *buf;
+ usize buf_len;
+ usize curr_offset;
+ usize prev_offset;
+} Arena;
+
+PODEF void p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length);
+PODEF void* p_arena_alloc_align(Arena *a, usize s, usize align);
+PODEF void* p_arena_alloc(Arena *a, usize s);
+PODEF void* p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align);
+PODEF void* p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size);
+PODEF void p_arena_free_all(Arena *a);
+PODEF void p_arena_destroy(Arena* a);
+
+typedef struct { u8 padding; } Stack_Allocation_Header;
+typedef struct Stack {
+ unsigned char *buf;
+ usize buf_len;
+ usize offset;
+} Stack;
+
+PODEF void p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length);
+PODEF usize calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size);
+PODEF void* p_stack_alloc(Stack *s, usize len, usize alignment);
+PODEF void p_stack_free(Stack *s, void *ptr);
+PODEF void p_stack_free_all(Stack* s);
+PODEF void p_stack_destroy(Stack* s);
+
+typedef struct Pool_Free_Node Pool_Free_Node;
+
+typedef struct Pool {
+ unsigned char *buf;
+ usize chunk_size;
+ usize pool_size;
+ Pool_Free_Node *head;
+} Pool;
+
+struct Pool_Free_Node { struct Pool_Free_Node *next; };
+PODEF void p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align);
+PODEF void* p_pool_alloc(Pool *p);
+PODEF void p_pool_free(Pool *p, void *ptr);
+PODEF void p_pool_free_all(Pool *p);
+PODEF void p_pool_destroy(Pool *p);
+/* --- End of p_allocators.h --- */
+#endif
+
+#endif /* _PODIUM_H_ */
+
+#ifdef PODIUM_IMPLEMENTATION
+#undef PODIUM_IMPLEMENTATION
+
+#if defined(PODIUM_SDL)
+/* #include "p_platform_sdl.c" */
+#elif defined(PODIUM_WIN32)
+/* --- Start of p_platform_win32.c --- */
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <mmsystem.h>
+#include <xinput.h> /* gamepad support */
+
+typedef struct {
+ HWAVEOUT wave_out;
+ WAVEHDR wave_header;
+} P_Win32Ctx;
+
+struct P_Window_Impl {
+ HWND hwnd;
+ HDC hdc;
+ BITMAPINFO bitmap_info;
+ int width;
+ int height;
+ bool closed;
+};
+
+P_Win32Ctx p_ctx = {0};
+
+static inline P_KeyCode
+_win32_translate_vkey(WPARAM vk)
+{
+ switch (vk) {
+ case VK_LEFT: return P_KEY_LEFT;
+ case VK_RIGHT: return P_KEY_RIGHT;
+ case VK_UP: return P_KEY_UP;
+ case VK_DOWN: return P_KEY_DOWN;
+ case VK_SPACE: return P_KEY_SPACE;
+ case VK_ESCAPE: return P_KEY_ESCAPE;
+ case VK_RETURN: return P_KEY_ENTER;
+ case 'A': return P_KEY_A;
+ case 'B': return P_KEY_B;
+ case 'C': return P_KEY_C;
+ case 'D': return P_KEY_D;
+ case 'E': return P_KEY_E;
+ case 'F': return P_KEY_F;
+ case 'G': return P_KEY_G;
+ case 'H': return P_KEY_H;
+ case 'I': return P_KEY_I;
+ case 'J': return P_KEY_J;
+ case 'K': return P_KEY_K;
+ case 'L': return P_KEY_L;
+ case 'M': return P_KEY_M;
+ case 'N': return P_KEY_N;
+ case 'O': return P_KEY_O;
+ case 'P': return P_KEY_P;
+ case 'Q': return P_KEY_Q;
+ case 'R': return P_KEY_R;
+ case 'S': return P_KEY_S;
+ case 'T': return P_KEY_T;
+ case 'U': return P_KEY_U;
+ case 'V': return P_KEY_V;
+ case 'W': return P_KEY_W;
+ case 'X': return P_KEY_X;
+ case 'Y': return P_KEY_Y;
+ case 'Z': return P_KEY_Z;
+ default: return P_KEY_UNKNOWN;
+ }
+}
+
+POAPI u64
+p_get_time(void)
+{
+ LARGE_INTEGER count, freq;
+ QueryPerformanceCounter(&count);
+ QueryPerformanceFrequency(&freq);
+ return (u64)((count.QuadPart * 1000000000ULL) / freq.QuadPart);
+}
+
+POAPI void
+p_sleep_ns(i64 ns)
+{
+ /* windows sleep is millisecond-based........ */
+ Sleep((DWORD)(ns / 1000000));
+}
+
+POAPI void
+p_stdout(void *msg, usize bytes)
+{
+ HANDLE stdout_handle = GetStdHandle(STD_OUTPUT_HANDLE);
+ DWORD bytes_written;
+ WriteFile(stdout_handle, msg, bytes, &bytes_written, NULL);
+}
+
+POAPI bool
+p_file_exists(const char *path)
+{
+ DWORD attr = GetFileAttributesA(path);
+ return (attr != INVALID_FILE_ATTRIBUTES && !(attr & FILE_ATTRIBUTE_DIRECTORY));
+}
+
+POAPI usize
+p_file_size(const char *path)
+{
+ WIN32_FILE_ATTRIBUTE_DATA data;
+ if (GetFileAttributesExA(path, GetFileExInfoStandard, &data)) {
+ return data.nFileSizeLow;
+ }
+ return 0;
+}
+
+PODEF void
+p_file_load(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ HANDLE file = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
+ if (file != INVALID_HANDLE_VALUE) {
+ DWORD bytes_read;
+ ReadFile(file, buf_ptr, buf_size, &bytes_read, NULL);
+ CloseHandle(file);
+ }
+}
+
+PODEF void
+p_file_write(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ HANDLE file = CreateFileA(path, GENERIC_WRITE, 0, NULL,
+ CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (file != INVALID_HANDLE_VALUE) {
+ DWORD bytes_written;
+ WriteFile(file, buf_ptr, buf_size, &bytes_written, NULL);
+ CloseHandle(file);
+ }
+}
+
+static LRESULT CALLBACK
+_win32_wnd_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
+ P_Window *win = (P_Window*)GetWindowLongPtrA(hwnd, GWLP_USERDATA);
+ switch (msg) {
+ case WM_CLOSE:
+ /* Handled in poll_event; mark as closed */
+ if (win) win->closed = true;
+ return 0;
+ }
+ return DefWindowProcA(hwnd, msg, wparam, lparam);
+}
+
+POAPI bool
+p_window_open(P_Window *win, int width, int height, const char *title)
+{
+ HINSTANCE instance = GetModuleHandleA(NULL);
+
+ WNDCLASSA wc = {0};
+ wc.lpfnWndProc = _win32_wnd_proc;
+ wc.hInstance = instance;
+ wc.lpszClassName = "P_Window_Class";
+ wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+
+ RegisterClassA(&wc);
+
+ win->hwnd = CreateWindowExA(0, wc.lpszClassName, title,
+ WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+ CW_USEDEFAULT, CW_USEDEFAULT, width, height,
+ NULL, NULL, instance, NULL);
+
+ if (!win->hwnd) return false;
+
+ SetWindowLongPtrA(win->hwnd, GWLP_USERDATA, (LONG_PTR)win);
+ win->hdc = GetDC(win->hwnd);
+ win->width = width;
+ win->height = height;
+ win->closed = false;
+
+ return true;
+}
+
+POAPI void
+p_window_close(P_Window *win)
+{
+ if (!win) return;
+ if (win->hdc) ReleaseDC(win->hwnd, win->hdc);
+ if (win->hwnd) DestroyWindow(win->hwnd);
+ win->hdc = NULL;
+ win->hwnd = NULL;
+}
+
+POAPI bool
+p_window_is_open(P_Window *win)
+{
+ return win && win->hwnd != NULL;
+}
+
+POAPI void
+p_window_size(P_Window *win, int *window_width, int *window_height)
+{
+ if (!win) return;
+ RECT rect;
+ GetClientRect(win->hwnd, &rect);
+ *window_width = rect.right - rect.left;
+ *window_height = rect.bottom - rect.top;
+ win->width = *window_width;
+ win->height = *window_height;
+}
+
+POAPI void
+p_window_draw(P_Window *win, u32 *pixels, int width, int height)
+{
+ BITMAPINFO bmi = {0};
+ bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
+ bmi.bmiHeader.biWidth = width;
+ bmi.bmiHeader.biHeight = -height; /* top-down */
+ bmi.bmiHeader.biPlanes = 1;
+ bmi.bmiHeader.biBitCount = 32;
+ bmi.bmiHeader.biCompression = BI_RGB;
+
+ StretchDIBits(win->hdc,
+ 0, 0, win->width, win->height,
+ 0, 0, width, height,
+ pixels, &bmi, DIB_RGB_COLORS, SRCCOPY);
+}
+
+POAPI bool
+p_window_poll_event(P_Window *win, P_Event *ev)
+{
+ if (win->closed) {
+ win->closed = false;
+ ev->type = P_EVENT_WINDOW_CLOSE;
+ return true;
+ }
+
+ MSG msg;
+ while (PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE)) {
+ switch (msg.message) {
+
+ case WM_QUIT:
+ ev->type = P_EVENT_WINDOW_CLOSE;
+ return true;
+
+ /* Key press */
+ case WM_KEYDOWN:
+ case WM_SYSKEYDOWN:
+ ev->type = P_EVENT_KEY_DOWN;
+ ev->key.key = _win32_translate_vkey(msg.wParam);
+ return true;
+
+ /* Key release */
+ case WM_KEYUP:
+ case WM_SYSKEYUP:
+ ev->type = P_EVENT_KEY_UP;
+ ev->key.key = _win32_translate_vkey(msg.wParam);
+ return true;
+
+ /* Mouse movement */
+ case WM_MOUSEMOVE:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_MOVED;
+ ev->pointer.button = 0;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ /* Mouse buttons */
+ case WM_LBUTTONDOWN:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = 1; /* 1 = LMB, matching X11 convention */
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_LBUTTONUP:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = 1;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_RBUTTONDOWN:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = 3; /* 3 = RMB */
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_RBUTTONUP:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = 3;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_MBUTTONDOWN:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = 2; /* 2 = MMB */
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ case WM_MBUTTONUP:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = 2;
+ ev->pointer.x = (u32)(msg.lParam & 0xFFFF);
+ ev->pointer.y = (u32)((msg.lParam >> 16) & 0xFFFF);
+ return true;
+
+ /* Window resize */
+ case WM_SIZE:
+ ev->type = P_EVENT_WINDOW_RESIZE;
+ ev->resize.width = (u32)(msg.lParam & 0xFFFF);
+ ev->resize.height = (u32)((msg.lParam >> 16) & 0xFFFF);
+ win->width = ev->resize.width;
+ win->height = ev->resize.height;
+ return true;
+
+ default:
+ TranslateMessage(&msg);
+ DispatchMessageA(&msg);
+ break;
+ }
+ }
+
+ ev->type = P_EVENT_NONE;
+ return false;
+}
+
+
+POAPI void
+p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc)
+{
+ (void)name; (void)desc; /* WinMM doesn't use a stream name */
+
+ WAVEFORMATEX wfx = {0};
+ wfx.wFormatTag = WAVE_FORMAT_PCM;
+ wfx.nChannels = channels;
+ wfx.nSamplesPerSec = sample_rate;
+ wfx.wBitsPerSample = 16;
+ wfx.nBlockAlign = (wfx.nChannels * wfx.wBitsPerSample) / 8;
+ wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
+
+ if (waveOutOpen(&p_ctx.wave_out, WAVE_MAPPER, &wfx, 0, 0, CALLBACK_NULL) != MMSYSERR_NOERROR) {
+ exit(1);
+ }
+}
+
+POAPI void
+p_audio_quit()
+{
+ if (p_ctx.wave_out) {
+ waveOutReset(p_ctx.wave_out);
+ waveOutClose(p_ctx.wave_out);
+ p_ctx.wave_out = NULL;
+ }
+}
+
+POAPI void
+p_audio_write(const i16 *samples, usize count)
+{
+ if (!p_ctx.wave_out) return;
+
+ WAVEHDR header = {0};
+ header.lpData = (LPSTR)samples;
+ header.dwBufferLength = (DWORD)(count * sizeof(i16));
+
+ waveOutPrepareHeader(p_ctx.wave_out, &header, sizeof(WAVEHDR));
+ waveOutWrite(p_ctx.wave_out, &header, sizeof(WAVEHDR));
+
+ /* wait for playback to finish (synchronous, mirrors pa_simple_drain) */
+ while (!(header.dwFlags & WHDR_DONE)) Sleep(1);
+
+ waveOutUnprepareHeader(p_ctx.wave_out, &header, sizeof(WAVEHDR));
+}
+
+#ifdef P_MODULE_VULKAN
+
+#ifndef VK_USE_PLATFORM_WIN32_KHR
+#define VK_USE_PLATFORM_WIN32_KHR
+#endif
+#include <vulkan/vulkan_win32.h>
+
+POAPI char**
+p_vulkan_get_extensions()
+{
+ char **darr = NULL;
+ p_darray_push(darr, "VK_KHR_surface");
+ p_darray_push(darr, "VK_KHR_win32_surface");
+ return darr;
+}
+
+POAPI bool
+p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface)
+{
+ if (!instance || !window || !window->hwnd || !out_surface) {
+ return false;
+ }
+
+ VkWin32SurfaceCreateInfoKHR create_info = {0};
+ create_info.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+ create_info.pNext = NULL;
+ create_info.flags = 0;
+ create_info.hwnd = window->hwnd;
+ create_info.hinstance = GetModuleHandleA(NULL);
+
+ VkResult result = vkCreateWin32SurfaceKHR(instance, &create_info, allocator, out_surface);
+ return (result == VK_SUCCESS);
+}
+#endif
+/* --- End of p_platform_win32.c --- */
+#elif defined(PODIUM_LINUX)
+/* --- Start of p_platform_linux.c --- */
+/* linux */
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <errno.h>
+/* x11 */
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+/* pulse audio */
+#include <pulse/pulseaudio.h>
+#include <pulse/simple.h>
+#include <pulse/error.h>
+/* joystick */
+#include <linux/joystick.h>
+
+typedef struct {
+ pa_simple *audio_stream;
+} P_LinuxCtx;
+
+struct P_Window_Impl {
+ Display *display;
+ XImage *image;
+ Window window;
+ GC gc;
+ int screen;
+ int width;
+ int height;
+};
+
+P_LinuxCtx p_ctx = {0};
+
+static inline P_KeyCode
+_x11_translate_keycode(XEvent xev)
+{
+ static KeySym ks;
+ ks = XLookupKeysym(&xev.xkey, 0);
+ switch (ks) {
+ /* Arrow keys */
+ case XK_Left: return P_KEY_LEFT;
+ case XK_Right: return P_KEY_RIGHT;
+ case XK_Up: return P_KEY_UP;
+ case XK_Down: return P_KEY_DOWN;
+ /* Common keys */
+ case XK_space: return P_KEY_SPACE;
+ case XK_Escape: return P_KEY_ESCAPE;
+ case XK_Return: return P_KEY_ENTER;
+ case XK_A: case XK_a: return P_KEY_A;
+ case XK_B: case XK_b: return P_KEY_B;
+ case XK_C: case XK_c: return P_KEY_C;
+ case XK_D: case XK_d: return P_KEY_D;
+ case XK_E: case XK_e: return P_KEY_E;
+ case XK_F: case XK_f: return P_KEY_F;
+ case XK_G: case XK_g: return P_KEY_G;
+ case XK_H: case XK_h: return P_KEY_H;
+ case XK_I: case XK_i: return P_KEY_I;
+ case XK_J: case XK_j: return P_KEY_J;
+ case XK_K: case XK_k: return P_KEY_K;
+ case XK_L: case XK_l: return P_KEY_L;
+ case XK_M: case XK_m: return P_KEY_M;
+ case XK_N: case XK_n: return P_KEY_N;
+ case XK_O: case XK_o: return P_KEY_O;
+ case XK_P: case XK_p: return P_KEY_P;
+ case XK_Q: case XK_q: return P_KEY_Q;
+ case XK_R: case XK_r: return P_KEY_R;
+ case XK_S: case XK_s: return P_KEY_S;
+ case XK_T: case XK_t: return P_KEY_T;
+ case XK_U: case XK_u: return P_KEY_U;
+ case XK_V: case XK_v: return P_KEY_V;
+ case XK_W: case XK_w: return P_KEY_W;
+ case XK_X: case XK_x: return P_KEY_X;
+ case XK_Y: case XK_y: return P_KEY_Y;
+ case XK_Z: case XK_z: return P_KEY_Z;
+ default: return P_KEY_UNKNOWN;
+ }
+}
+
+POAPI u64
+p_get_time(void)
+{
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return NANOS_PER_SEC * ts.tv_sec + ts.tv_nsec;
+}
+
+POAPI void
+p_sleep_ns(i64 ns)
+{
+ struct timespec ts;
+ ts.tv_sec = ns / 1000000000L;
+ ts.tv_nsec = ns % 1000000000L;
+ clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
+}
+
+POAPI void
+p_stdout(void *msg, usize bytes)
+{
+ write(1, msg, bytes);
+}
+
+POAPI bool
+p_file_exists(const char *path)
+{
+ return (access(path, F_OK) == 0);
+}
+
+POAPI usize
+p_file_size(const char *path)
+{
+ struct stat st;
+ if (stat(path, &st) == 0) {
+ return st.st_size;
+ }
+ return 0;
+}
+
+PODEF void
+p_file_load(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ int fd = open(path, O_RDONLY);
+ if (fd >= 0) {
+ read(fd, buf_ptr, (size_t)buf_size);
+ close(fd);
+ }
+}
+
+PODEF void
+p_file_write(const char *path, void *buf_ptr, unsigned long buf_size)
+{
+ int fd = open(path, O_WRONLY | O_CREAT | O_APPEND, 0644);
+ if (fd >= 0) {
+ write(fd, buf_ptr, (size_t)buf_size);
+ close(fd);
+ }
+}
+
+POAPI bool
+p_window_open(P_Window *win, int width, int height, const char *title)
+{
+ win->width = width;
+ win->height = height;
+
+ XInitThreads();
+
+ win->display = XOpenDisplay(NULL);
+ if (win->display == NULL) {
+ PERROR("Cannot open display!");
+ return false;
+ }
+
+ int screen = DefaultScreen(win->display);
+ win->window = XCreateSimpleWindow(
+ win->display,
+ RootWindow(win->display, screen),
+ 0, 0, width, height,
+ 1,
+ BlackPixel(win->display, screen),
+ BlackPixel(win->display, screen)
+ );
+
+ win->screen = screen;
+
+ XStoreName(win->display, win->window, title);
+ XSelectInput(win->display, win->window,
+ KeyPressMask | KeyReleaseMask |
+ ButtonPressMask | ButtonReleaseMask |
+ PointerMotionMask | StructureNotifyMask);
+ XMapWindow(win->display, win->window);
+
+ win->gc = DefaultGC(win->display, screen);
+
+ Atom wm_delete = XInternAtom(win->display, "WM_DELETE_WINDOW", False);
+ XSetWMProtocols(win->display, win->window, &wm_delete, 1);
+
+ return true;
+}
+
+POAPI void
+p_window_close(P_Window *win)
+{
+ if (!win) return;
+
+ if (win->image) {
+ // XDestroyImage(win->image);
+ win->image = NULL;
+ }
+
+ if (win->display) {
+ Display *dpy = win->display;
+ Window w = win->window;
+ win->display = NULL;
+ win->window = 0;
+
+ if (w) {
+ XDestroyWindow(dpy, w);
+ }
+ XSync(dpy, False);
+ }
+}
+
+POAPI bool
+p_window_is_open(P_Window *win)
+{
+ return win && win->display != NULL;
+}
+
+POAPI void
+p_window_size(P_Window *win, int *window_width, int *window_height)
+{
+ if (!win) return;
+
+ XWindowAttributes attr;
+ XGetWindowAttributes(win->display, win->window, &attr);
+ *window_width = attr.width;
+ *window_height = attr.height;
+
+ win->width = attr.width;
+ win->height = attr.height;
+}
+
+POAPI void
+p_window_draw(P_Window *win, u32 *pixels, int width, int height)
+{
+ int screen = win->screen;
+
+ win->image = XCreateImage(
+ win->display,
+ DefaultVisual(win->display, screen),
+ DefaultDepth(win->display, screen),
+ ZPixmap,
+ 0,
+ (char*)pixels,
+ width,
+ height,
+ 32,
+ width * 4
+ );
+
+ int window_width, window_height;
+ p_window_size(win, &window_width, &window_height);
+
+ XPutImage(
+ win->display,
+ win->window,
+ win->gc,
+ win->image,
+ 0, 0,
+ 0, 0,
+ win->width,
+ win->height);
+
+ XFlush(win->display);
+}
+
+POAPI bool
+p_window_poll_event(P_Window *win, P_Event *ev)
+{
+ if (XPending(win->display)) {
+ static XEvent xev;
+ XNextEvent(win->display, &xev);
+
+ switch (xev.type) {
+
+ case KeyPress:
+ ev->type = P_EVENT_KEY_DOWN;
+ ev->key.key = _x11_translate_keycode(xev);
+ return true;
+
+ case KeyRelease:
+ ev->type = P_EVENT_KEY_UP;
+ ev->key.key = _x11_translate_keycode(xev);
+ return true;
+
+ case ConfigureNotify:
+ ev->type = P_EVENT_WINDOW_RESIZE;
+ ev->resize.width = xev.xconfigure.width;
+ ev->resize.height = xev.xconfigure.height;
+ return true;
+
+ case ClientMessage:
+ if ((Atom)xev.xclient.data.l[0] ==
+ XInternAtom(win->display, "WM_DELETE_WINDOW", False)) {
+ ev->type = P_EVENT_WINDOW_CLOSE;
+ return true;
+ }
+ break;
+
+ case MotionNotify:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_MOVED;
+ ev->pointer.button = 0;
+ ev->pointer.x = xev.xmotion.x;
+ ev->pointer.y = xev.xmotion.y;
+ return true;
+
+ case ButtonPress:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_PRESSED;
+ ev->pointer.button = xev.xbutton.button; /* 1=LMB, 2=MMB, 3=RMB */
+ ev->pointer.x = xev.xbutton.x;
+ ev->pointer.y = xev.xbutton.y;
+ return true;
+
+ case ButtonRelease:
+ ev->type = P_EVENT_POINTER;
+ ev->pointer.state = P_POINTER_RELEASED;
+ ev->pointer.button = xev.xbutton.button;
+ ev->pointer.x = xev.xbutton.x;
+ ev->pointer.y = xev.xbutton.y;
+ return true;
+ }
+ }
+
+ ev->type = P_EVENT_NONE;
+ return false;
+}
+
+POAPI void
+p_audio_init(const int sample_rate, const int channels, const char *name, const char *desc)
+{
+ pa_sample_spec ss = {
+ .format = PA_SAMPLE_S16LE,
+ .rate = sample_rate,
+ .channels = channels,
+ };
+
+ int error;
+ p_ctx.audio_stream = pa_simple_new(
+ NULL,
+ name,
+ PA_STREAM_PLAYBACK,
+ NULL,
+ desc,
+ &ss,
+ NULL,
+ NULL,
+ &error
+ );
+
+ if (!p_ctx.audio_stream) {
+ PERROR("PulseAudio init failed: %s\n", pa_strerror(error));
+ exit(1);
+ }
+}
+
+POAPI void
+p_audio_quit()
+{
+ if (p_ctx.audio_stream) {
+ pa_simple_free(p_ctx.audio_stream);
+ p_ctx.audio_stream = NULL;
+ }
+}
+
+POAPI void
+p_audio_write(const i16 *samples, usize count)
+{
+ if (!p_ctx.audio_stream) return;
+
+ int error;
+ if (pa_simple_write(p_ctx.audio_stream, samples, count * sizeof(i16), &error) < 0) {
+ PERROR("PulseAudio write failed: %s\n", pa_strerror(error));
+ }
+
+ pa_simple_drain(p_ctx.audio_stream, &error);
+}
+
+#ifdef P_MODULE_VULKAN
+
+#ifndef VK_USE_PLATFORM_XLIB_KHR
+#define VK_USE_PLATFORM_XLIB_KHR
+#endif
+#include <vulkan/vulkan_xlib.h>
+
+POAPI char**
+p_vulkan_get_extensions()
+{
+ char **darr = NULL;
+ p_darray_push(darr, "VK_KHR_surface");
+ p_darray_push(darr, "VK_KHR_xcb_surface");
+ p_darray_push(darr, "VK_KHR_xlib_surface");
+ return darr;
+}
+
+POAPI bool
+p_vulkan_create_surface(P_Window *window, VkInstance instance, const VkAllocationCallbacks* allocator, VkSurfaceKHR* out_surface)
+{
+ if (!instance || !window || !window->display || !window->window || !out_surface) {
+ return false;
+ }
+
+ VkXlibSurfaceCreateInfoKHR create_info = {0};
+ create_info.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
+ create_info.pNext = NULL;
+ create_info.flags = 0;
+ create_info.dpy = window->display;
+ create_info.window = window->window;
+
+ VkResult result = vkCreateXlibSurfaceKHR(instance, &create_info, allocator, out_surface);
+
+ return (result == VK_SUCCESS);
+}
+#endif
+/* --- End of p_platform_linux.c --- */
+#endif /* linux */
+
+
+POAPI void* p_file_alloc(const char *path, unsigned long *buf_size) {
+ if (p_file_exists(path) == false) {
+ return NULL;
+ }
+
+ usize file_size = p_file_size(path);
+ *buf_size = file_size;
+
+ void *ptr = malloc(file_size);
+ if (ptr) {
+ p_file_load(path, ptr, file_size); // Load file to buffer.
+ }
+ return ptr;
+}
+
+
+/*
+ * Import Module Code
+ */
+
+#ifdef P_MODULE_STRING
+/* --- Start of p_string.c --- */
+PODEF char*
+p_find_char(char *buf, char needle)
+{
+ while (buf && *buf != needle) buf++;
+ return buf;
+}
+
+PODEF bool
+p_strcmp(const char *a, const char *b)
+{
+ if (p_strlen(a) != p_strlen(b))
+ return false;
+
+ while (a && b && *a != '\0') {
+ if (*(a++) != *(b++)) return false;
+ }
+
+ return true;
+}
+
+PODEF int
+p_strlen(const char *a)
+{
+ int i = 0;
+ while (*a++ != '\0') i++;
+ return i;
+}
+
+PODEF int
+p_strtoi(const char *str)
+{
+ int res = 0;
+
+ while (*str) {
+ if (*str >= '0' && *str <= '9') {
+ res = res * 10 + (*str - '0');
+ } else {
+ return res;
+ }
+ str++;
+ }
+
+ return res;
+}
+
+PODEF char*
+p_strtok(const char *str, char c)
+{
+ while (*str != c && *str++ != '\0');
+ return (*str == c) ? (char*) ++str : 0;
+}
+
+PODEF P_StringView
+p_strview(const char *cstr)
+{
+ P_StringView sv = {0};
+ sv.cstr = cstr;
+ sv.len = p_strlen(cstr);
+ return sv;
+}
+
+PODEF void
+p_strview_chop_left(P_StringView *sv, u32 n)
+{
+ if (n > sv->len) n = sv->len;
+ sv->cstr += n;
+ sv->len -= n;
+}
+
+PODEF void
+p_strview_chop_right(P_StringView *sv, u32 n)
+{
+ if (n > sv->len) n = sv->len;
+ sv->len -= n;
+}
+
+PODEF P_StringView
+p_strview_chop_delim(P_StringView *sv, char delim)
+{
+ u32 i = 0;
+ while (i < sv->len && sv->cstr[i] != delim) {
+ i++;
+ }
+
+ P_StringView tok;
+ if (i < sv->len) {
+ tok.cstr = sv->cstr;
+ tok.len = i;
+ p_strview_chop_left(sv, i + 1);
+ return tok;
+ }
+
+ tok = *sv;
+ p_strview_chop_left(sv, sv->len);
+ return tok;
+}
+
+PODEF P_StringView
+p_strview_chop_type(P_StringView *sv, int(*istype)(int))
+{
+ u32 i = 0;
+ while (i < sv->len && istype(sv->cstr[i])) {
+ i++;
+ }
+
+ P_StringView tok;
+ if (i < sv->len) {
+ tok.cstr = sv->cstr;
+ tok.len = i;
+ p_strview_chop_left(sv, i + 1);
+ return tok;
+ }
+
+ tok = *sv;
+ p_strview_chop_left(sv, sv->len);
+ return tok;
+}
+
+
+PODEF void
+p_strview_trim_left(P_StringView *sv)
+{
+ while (sv->len > 0 && p_is_space(sv->cstr[0])) {
+ p_strview_chop_left(sv, 1);
+ }
+}
+
+PODEF void
+p_strview_trim_right(P_StringView *sv)
+{
+ while (sv->len > 0 && p_is_space(sv->cstr[sv->len-1])) {
+ p_strview_chop_right(sv, 1);
+ }
+}
+
+PODEF void
+p_strview_trim(P_StringView *sv)
+{
+ p_strview_trim_left(sv);
+ p_strview_trim_right(sv);
+}
+
+PODEF int
+p_is_space(int c)
+{
+ /* Checks for: space, form feed (\f), line feed (\n),
+ * carriage return (\r), horizontal tab (\t), vertical tab (\v) */
+ return (c == ' ' || (c >= '\t' && c <= '\r'));
+}
+
+PODEF int
+p_is_digit(int c)
+{
+ return (c >= '0' && c <= '9');
+}
+
+PODEF int
+p_is_alpha(int c)
+{
+ return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
+}
+
+PODEF int
+p_is_alnum(int c)
+{
+ return (p_is_alpha(c) || p_is_digit(c));
+}
+
+PODEF int
+p_is_hex(int c)
+{
+ return (p_is_digit(c) ||
+ (c >= 'a' && c <= 'f') ||
+ (c >= 'A' && c <= 'F'));
+}
+
+PODEF int
+p_is_upper(int c)
+{
+ return (c >= 'A' && c <= 'Z');
+}
+
+PODEF int
+p_is_lower(int c)
+{
+ return (c >= 'a' && c <= 'z');
+}
+
+PODEF int
+p_to_lower(int c)
+{
+ if (p_is_upper(c)) return (c + ('a' - 'A'));
+ return c;
+}
+
+PODEF int
+p_to_upper(int c)
+{
+ if (p_is_lower(c)) return (c - ('a' - 'A'));
+ return c;
+}
+/* --- End of p_string.c --- */
+#endif
+
+#ifdef P_MODULE_MATH
+/* --- Start of p_math.c --- */
+PODEF
+int p_ceil(float x)
+{
+ int base = (int) x;
+ return (x > base) ? base + 1 : base;
+}
+
+PODEF float
+p_cosf(float x)
+{
+ x += 1.57079632679f;
+
+ while (x > P_PI) x -= P_PI2;
+ while (x < -P_PI) x += P_PI2;
+
+ const float B = 4.0f / P_PI;
+ const float C = -4.0f / P_PI_POW2;
+
+ float y = B * x + C * x * (x < 0 ? -x : x);
+
+ const float P = 0.225f;
+ y = P * (y * (y < 0 ? -y : y) - y) + y;
+
+ return y;
+}
+
+PODEF float
+p_sinf(float x)
+{
+ while (x > P_PI) x -= P_PI2;
+ while (x < -P_PI) x += P_PI2;
+
+ const float B = 4.0f / P_PI;
+ const float C = -4.0f / (P_PI_POW2);
+
+ float y = B * x + C * x * (x < 0 ? -x : x);
+
+ const float P = 0.225f;
+ y = P * (y * (y < 0 ? -y : y) - y) + y;
+
+ return y;
+}
+
+PODEF Vec2f
+p_vec2f(float x, float y)
+{
+ return (Vec2f) { .x = x, .y = y };
+}
+
+PODEF Vec2f
+p_vec2f_add(Vec2f a, Vec2f b)
+{
+ return (Vec2f) {
+ .x = a.x + b.x,
+ .y = a.y + b.y,
+ };
+}
+
+PODEF float
+p_vec2f_cross(Vec2f a, Vec2f b)
+{
+ // axby − aybx
+ return a.x * b.y - a.y * b.x;
+}
+
+PODEF float
+p_vec2f_dot(Vec2f a, Vec2f b)
+{
+ // a · b = ax × bx + ay × by
+ return a.x * b.x + a.y * b.y;
+}
+
+PODEF Vec2f
+p_vec2f_mult(Vec2f a, float b)
+{
+ return (Vec2f) {
+ .x = a.x * b,
+ .y = a.y * b,
+ };
+}
+
+PODEF Vec2f
+p_vec2f_sub(Vec2f a, Vec2f b)
+{
+ return (Vec2f) {
+ .x = a.x - b.x,
+ .y = a.y - b.y,
+ };
+}
+
+PODEF Vec2i
+p_vec2i(float x, float y)
+{
+ return (Vec2i) { .x = x, .y = y };
+}
+
+PODEF Vec2i
+p_vec2i_add(Vec2i a, Vec2i b)
+{
+ return (Vec2i) {
+ .x = a.x + b.x,
+ .y = a.y + b.y,
+ };
+}
+
+PODEF float
+p_vec2i_cross(Vec2i a, Vec2i b)
+{
+ // axby − aybx
+ return a.x * b.y - a.y * b.x;
+}
+
+PODEF float
+p_vec2i_dot(Vec2i a, Vec2i b)
+{
+ // a · b = ax × bx + ay × by
+ return a.x * b.x + a.y * b.y;
+}
+
+PODEF Vec2i
+p_vec2i_mult(Vec2i a, float b)
+{
+ return (Vec2i) {
+ .x = a.x * b,
+ .y = a.y * b,
+ };
+}
+
+PODEF Vec2i
+p_vec2i_sub(Vec2i a, Vec2i b)
+{
+ return (Vec2i) {
+ .x = a.x - b.x,
+ .y = a.y - b.y,
+ };
+}
+
+PODEF Vec3f
+p_vec3f(float x, float y, float z)
+{
+ return (Vec3f) { .x = x, .y = y, .z = z };
+}
+
+PODEF P_Mat4
+p_mat4_identity(void)
+{
+ P_Mat4 res = {0};
+ res.m[0] = 1.0f;
+ res.m[5] = 1.0f;
+ res.m[10] = 1.0f;
+ res.m[15] = 1.0f;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_mul(P_Mat4 a, P_Mat4 b)
+{
+ P_Mat4 res = {0};
+ for (int col = 0; col < 4; ++col) {
+ for (int row = 0; row < 4; ++row) {
+ float sum = 0.0f;
+ for (int k = 0; k < 4; ++k) {
+ sum += a.m[k * 4 + row] * b.m[col * 4 + k];
+ }
+ res.m[col * 4 + row] = sum;
+ }
+ }
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_translate(Vec3f v)
+{
+ P_Mat4 res = p_mat4_identity();
+ res.m[12] = v.x;
+ res.m[13] = v.y;
+ res.m[14] = v.z;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_translate_by(P_Mat4 m, Vec3f v)
+{
+ P_Mat4 res = m;
+ res.m[12] = m.m[0] * v.x + m.m[4] * v.y + m.m[8] * v.z + m.m[12];
+ res.m[13] = m.m[1] * v.x + m.m[5] * v.y + m.m[9] * v.z + m.m[13];
+ res.m[14] = m.m[2] * v.x + m.m[6] * v.y + m.m[10] * v.z + m.m[14];
+ res.m[15] = m.m[3] * v.x + m.m[7] * v.y + m.m[11] * v.z + m.m[15];
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_rotate_x(float rad)
+{
+ P_Mat4 res = p_mat4_identity();
+ float c = p_cosf(rad);
+ float s = p_sinf(rad);
+ res.m[5] = c;
+ res.m[6] = s;
+ res.m[9] = -s;
+ res.m[10] = c;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_rotate_x_by(P_Mat4 m, float rad)
+{
+ return p_mat4_mul(m, p_mat4_rotate_x(rad));
+}
+
+PODEF P_Mat4
+p_mat4_rotate_y(float rad)
+{
+ P_Mat4 res = p_mat4_identity();
+ float c = p_cosf(rad);
+ float s = p_sinf(rad);
+ res.m[0] = c;
+ res.m[2] = -s;
+ res.m[8] = s;
+ res.m[10] = c;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_rotate_y_by(P_Mat4 m, float rad)
+{
+ return p_mat4_mul(m, p_mat4_rotate_y(rad));
+}
+
+PODEF P_Mat4
+p_mat4_rotate_z(float rad)
+{
+ P_Mat4 res = p_mat4_identity();
+ float c = p_cosf(rad);
+ float s = p_sinf(rad);
+ res.m[0] = c;
+ res.m[1] = s;
+ res.m[4] = -s;
+ res.m[5] = c;
+ return res;
+}
+
+PODEF P_Mat4
+p_mat4_perspective(float fov_rad, float aspect, float near_z, float far_z)
+{
+ P_Mat4 res = {0};
+ float tan_half_fov = p_sinf(fov_rad * 0.5f) / p_cosf(fov_rad * 0.5f);
+
+ res.m[0] = 1.0f / (aspect * tan_half_fov);
+ res.m[5] = 1.0f / tan_half_fov;
+ res.m[10] = far_z / (near_z - far_z);
+ res.m[11] = -1.0f;
+ res.m[14] = (near_z * far_z) / (near_z - far_z);
+ return res;
+}
+/* --- End of p_math.c --- */
+#endif
+
+#ifdef P_MODULE_ALLOC
+/* --- Start of p_allocators.c --- */
+PODEF bool
+is_power_of_two(uintptr x) {
+ return (x & (x-1)) == 0;
+}
+
+PODEF uintptr
+align_forward(uintptr ptr, usize align)
+{
+ uintptr p, a, remainder;
+ assert(is_power_of_two(align));
+
+ p = ptr;
+ a = (uintptr)align;
+ remainder = p & (a-1);
+
+ return (remainder != 0) ? p + a - remainder : p;
+}
+
+PODEF void
+p_arena_create(Arena *a, void *backing_buffer, usize backing_buffer_length)
+{
+ a->buf = (unsigned char *)backing_buffer;
+ a->buf_len = backing_buffer_length;
+ a->curr_offset = 0;
+ a->prev_offset = 0;
+}
+
+PODEF void*
+p_arena_alloc_align(Arena *a, usize s, usize align)
+{
+
+ // Align 'curr_offset' forward to the specified alignment
+ uintptr curr_ptr = (uintptr)a->buf + (uintptr)a->curr_offset;
+ uintptr offset = align_forward(curr_ptr, align);
+ offset -= (uintptr)a->buf; // Change to relative offset
+
+ // Check to see if the backing memory has space left
+ if (offset+s <= a->buf_len) {
+ void *ptr = &a->buf[offset];
+ a->prev_offset = offset;
+ a->curr_offset = offset+s;
+
+ memset(ptr, 0, s);
+ return ptr;
+ }
+
+ return NULL;
+}
+
+PODEF void*
+p_arena_alloc(Arena *a, usize s) {
+ return p_arena_alloc_align(a, s, DEFAULT_ALIGNMENT);
+}
+
+PODEF void*
+p_arena_resize_align(Arena *a, void *old_memory, usize old_size, usize new_size, usize align)
+{
+ assert(is_power_of_two(align));
+ unsigned char *old_mem = (unsigned char *)old_memory;
+
+ if (old_mem == NULL || old_size == 0) {
+ return p_arena_alloc_align(a, new_size, align);
+ } else if (a->buf <= old_mem && old_mem < a->buf+a->buf_len) {
+ if (a->buf+a->prev_offset == old_mem) {
+ a->curr_offset = a->prev_offset + new_size;
+ if (new_size > old_size) {
+ // Zero the new memory by default
+ memset(&a->buf[a->curr_offset], 0, new_size-old_size);
+ }
+ return old_memory;
+ } else {
+ void *new_memory = p_arena_alloc_align(a, new_size, align);
+ size_t copy_size = old_size < new_size ? old_size : new_size;
+ memmove(new_memory, old_memory, copy_size);
+ return new_memory;
+ }
+
+ } else {
+ assert(0 && "Memory is out of bounds of the buffer in this arena");
+ return NULL;
+ }
+}
+
+PODEF void*
+p_arena_resize(Arena *a, void *old_memory, usize old_size, usize new_size)
+{
+ return p_arena_resize_align(a, old_memory, old_size, new_size, DEFAULT_ALIGNMENT);
+}
+
+PODEF void
+p_arena_free_all(Arena *a)
+{
+ a->curr_offset = 0;
+ a->prev_offset = 0;
+}
+
+PODEF void
+p_arena_destroy(Arena* a)
+{
+ a->buf_len = 0;
+ a->curr_offset = 0;
+ a->prev_offset = 0;
+}
+
+PODEF void
+p_stack_create(Stack *s, void *backing_buffer, usize backing_buffer_length)
+{
+ s->buf = (unsigned char*) backing_buffer;
+ s->buf_len = backing_buffer_length;
+ s->offset = 0;
+}
+
+PODEF usize
+calc_padding_with_header(uintptr ptr, uintptr alignment, usize header_size)
+{
+ uintptr p, a, modulo, padding, needed_space;
+
+ assert(is_power_of_two(alignment));
+
+ p = ptr;
+ a = alignment;
+ modulo = p & (a-1); // (p % a) as it assumes alignment is a power of two
+
+ padding = 0;
+ needed_space = 0;
+
+ if (modulo != 0) { // Same logic as 'align_forward'
+ padding = a - modulo;
+ }
+
+ needed_space = (uintptr)header_size;
+
+ if (padding < needed_space) {
+ needed_space -= padding;
+
+ if ((needed_space & (a-1)) != 0) {
+ padding += a * (1+(needed_space/a));
+ } else {
+ padding += a * (needed_space/a);
+ }
+ }
+
+ return (usize)padding;
+}
+
+PODEF void*
+p_stack_alloc(Stack *s, usize len, usize alignment)
+{
+ uintptr curr_addr, next_addr;
+ usize padding;
+ Stack_Allocation_Header *header;
+
+ assert(is_power_of_two(alignment));
+
+ if (alignment > 128) {
+ // As the padding is 8 bits (1 byte), the largest alignment that can
+ // be used is 128 bytes
+ alignment = 128;
+ }
+
+ curr_addr = (uintptr)s->buf + (uintptr)s->offset;
+ padding = calc_padding_with_header(curr_addr, (uintptr)alignment, sizeof(Stack_Allocation_Header));
+ if (s->offset + padding + len > s->buf_len) {
+ // Stack allocator is out of memory
+ return NULL;
+ }
+ s->offset += padding;
+
+ next_addr = curr_addr + (uintptr)padding;
+ header = (Stack_Allocation_Header *)(next_addr - sizeof(Stack_Allocation_Header));
+ header->padding = (u8)padding;
+
+ s->offset += len;
+
+ return memset((void *)next_addr, 0, len);
+}
+
+PODEF void
+p_stack_free(Stack *s, void *ptr)
+{
+ if (ptr != NULL) {
+ uintptr start, end, curr_addr;
+ Stack_Allocation_Header *header;
+ usize prev_offset;
+
+ start = (uintptr)s->buf;
+ end = start + (uintptr)s->buf_len;
+ curr_addr = (uintptr)ptr;
+
+ if (!(start <= curr_addr && curr_addr < end)) {
+ assert(0 && "Out of bounds memory address passed to stack allocator (free)");
+ return;
+ }
+
+ if (curr_addr >= start+(uintptr)s->offset) {
+ // Allow double frees
+ return;
+ }
+
+ header = (Stack_Allocation_Header *)(curr_addr - sizeof(Stack_Allocation_Header));
+ prev_offset = (usize)(curr_addr - (uintptr)header->padding - start);
+
+ s->offset = prev_offset;
+ }
+}
+
+PODEF void
+p_stack_free_all(Stack* s)
+{
+ s->offset = 0;
+}
+
+PODEF void
+p_stack_destroy(Stack* s)
+{
+ s->buf = 0;
+ s->buf_len = 0;
+ s->offset = 0;
+}
+
+PODEF void
+p_pool_create(Pool *p, void *buf, usize buf_len, usize chunk_size, usize chunk_align)
+{
+ /* align start */
+ uintptr start = (uintptr) buf;
+ uintptr aligned = align_forward(start, chunk_align);
+ buf_len -= (aligned - start);
+
+ /* align chunk usize */
+ chunk_size = (usize) align_forward(chunk_size, chunk_align);
+
+ assert(chunk_size >= sizeof(Pool_Free_Node) && "Chunk usize is too small");
+ assert(buf_len >= chunk_size && "Backing buffer length is smaller than the chunk size");
+
+ p->buf = (unsigned char *) buf;
+ p->pool_size = buf_len;
+ p->chunk_size = chunk_size;
+ p->head = NULL;
+
+ p_pool_free_all(p);
+}
+
+PODEF void*
+p_pool_alloc(Pool *p)
+{
+ Pool_Free_Node *node = p->head;
+
+ assert(node != NULL && "Pool allocator has no free memory");
+
+ p->head = p->head->next;
+
+ return memset(node, 0 , p->chunk_size);
+}
+
+PODEF void
+p_pool_free(Pool *p, void *ptr)
+{
+ Pool_Free_Node *node;
+
+ void *start = p->buf;
+ void *end = &p->buf[p->pool_size];
+
+ if (ptr == NULL) {
+ return;
+ }
+
+ if (!(start <= ptr && ptr < end)) {
+ assert(0 && "Memory is out of bounds of the buffer in this pool");
+ return;
+ }
+
+ node = (Pool_Free_Node *)ptr;
+ node->next = p->head;
+ p->head = node;
+}
+
+PODEF void
+p_pool_free_all(Pool *p)
+{
+ usize chunk_count = p->pool_size / p->chunk_size;
+ usize i;
+
+ for (i = 0; i < chunk_count; i++) {
+ void *ptr = &p->buf[i * p->chunk_size];
+ Pool_Free_Node *node = (Pool_Free_Node *)ptr;
+
+ // Push free node onto thte free list
+ node->next = p->head;
+ p->head = node;
+ }
+}
+
+PODEF void
+p_pool_destroy(Pool *p)
+{
+ p->buf = NULL;
+ p->pool_size = 0;
+ p->chunk_size = 0;
+ p->head = NULL;
+}
+
+/* --- End of p_allocators.c --- */
+#endif
+
+#define P_MAX_PRINTF_SIZE 1024
+PODEF void
+p_log_printf(P_Log_Level level, const char* src, ...)
+{
+ static char out_message[P_MAX_PRINTF_SIZE];
+ static u32 offset = P_PREFIX_LEN + 1;
+
+ memcpy(out_message, p_prefix[level], P_PREFIX_LEN); /* prefixes have a fixed len */
+ out_message[P_PREFIX_LEN] = ' '; /* write space */
+
+ __builtin_va_list arg_ptr;
+ va_start(arg_ptr, src);
+ int len = vsnprintf(out_message+offset, P_MAX_PRINTF_SIZE-offset, src, arg_ptr); // append message
+ va_end(arg_ptr);
+
+ if (len < 0) len = 0;
+ usize total_len = offset + len;
+ if (total_len > P_MAX_PRINTF_SIZE) {
+ total_len = P_MAX_PRINTF_SIZE;
+ }
+
+ p_stdout(out_message, total_len);
+ p_stdout("\n", 1);
+}
+
+#endif // PODIUM_IMPLEMENTATION
diff --git a/Rend/rend.c b/Rend/rend.c new file mode 100644 index 0000000..9d31949 --- /dev/null +++ b/Rend/rend.c @@ -0,0 +1,617 @@ +#include <assert.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <sys/param.h> +#include <unistd.h> + +#include "rend.h" +#include "rend_internal.h" +#include "rend_vk.c" +#include "rend_vk_internal.h" + +/* clean up functions */ + +static void rend__renderer_destroy_recursive(RendRenderer renderer); +static void rend__pipeline_destroy_recursive(RendPipeline pipeline); +static bool rend__renderer_init_recursive(RendRenderer renderer, RendBackendType backend, bool auto_pick); + +static RendRenderer rend_renderers_head = NULL; + +// TODO: automatically clear buffers and textures +// static RendBuffer rend_buffer_head = NULL; +// static RendTexture rend_texture_head = NULL; + +bool rend_backend_vk_initialized = false; + +RendVTable rend_vtables[] = { + [REND_BACKEND_VULKAN_14] = { + .renderer_create = rend_vk_renderer_create, + .renderer_destroy = rend_vk_renderer_destroy, + .renderer_frame_begin = rend_vk_renderer_frame_begin, + .renderer_frame_end = rend_vk_renderer_frame_end, + + .buffer_create_lifetime = rend_vk_buffer_create_lifetime, + .buffer_destroy = rend_vk_buffer_destroy, + .buffer_copy = rend_vk_buffer_copy, + + .texture_create = rend_vk_texture_create, + .texture_destroy = rend_vk_texture_destroy, + .texture_copy_buffer = rend_vk_texture_copy_buffer, + .texture_blit = rend_vk_texture_blit, + + .pipeline_create = rend_vk_pipeline_create, + .pipeline_bind = rend_vk_pipeline_bind, + .pipeline_push_constants = rend_vk_pipeline_push_constants, + + .pipeline_bind_vertex_buffer = rend_vk_pipeline_bind_vertex_buffer, + .pipeline_bind_index_buffer = rend_vk_pipeline_bind_index_buffer, + + .pipeline_dispatch = rend_vk_pipeline_dispatch, + .pipeline_draw = rend_vk_pipeline_draw, + .pipeline_draw_indexed = rend_vk_pipeline_draw_indexed, + .pipeline_set_blend = rend_vk_pipeline_set_blend, + + .renderer_render_pass_begin = rend_vk_renderer_render_pass_begin, + .renderer_render_pass_begin_texture = rend_vk_renderer_render_pass_begin_texture, + .renderer_render_pass_end = rend_vk_renderer_render_pass_end, + .renderer_render_pass_end_texture = rend_vk_renderer_render_pass_end_texture, + + .descriptor_write_buffer = rend_vk_descriptor_write_buffer, + .descriptor_write_texture = rend_vk_descriptor_write_texture, + }, +}; + +extern void +rend_quit() +{ + rend__renderer_destroy_recursive(rend_renderers_head); + + if (rend_backend_vk_initialized) { + rend_vk_quit(); + rend_backend_vk_initialized = false; + } + +} + +extern RendRenderer +rend_renderer_create(P_Window *target, RendBackendType backend, void* device, bool vsync, RendBindingInfo *bind_info) +{ + + RendRenderer rend = rmalloc(sizeof *rend); + rend->next = rend_renderers_head; + rend->prev = NULL; + rend_renderers_head = rend; + if(rend->next) { + rend->next->prev = rend; + } + + rend__renderer_init_recursive(rend, backend, false); + + rend->vsync = vsync; + rend->bind_info = *bind_info; + rend->window = target; + rend->pipeline_head = 0; + + rend->context = rend_vtables[rend->backend].renderer_create(); + if (rend->context) { + return rend; + } + + return NULL; +} + +extern void +rend_renderer_destroy(RendRenderer renderer) +{ + RASSERT(renderer && renderer->context, "Invalid renderer."); + if (!renderer) return; + + rend__pipeline_destroy_recursive(renderer->pipeline_head); + + if (renderer->backend != 0) { + rend_vtables[renderer->backend].renderer_destroy(renderer->context); + } + + if (renderer->prev) renderer->prev->next = renderer->next; + else rend_renderers_head = renderer->next; + + if (renderer->next) renderer->next->prev = renderer->prev; + + rfree(renderer); +} + +extern bool +rend_renderer_frame_begin(RendRenderer renderer) +{ + RASSERT(renderer && (uintptr_t)renderer != 0xffffffff00000000 && "Invalid renderer. (Possible stack corruption.)"); + RASSERT(renderer->context, "Uninitialized renderer."); + RASSERT(!renderer->in_frame, "Must not be called inside a frame."); + RASSERT(!renderer->in_pass, "Must not be called inside a render pass."); + + renderer->in_frame = 1; + return rend_vtables[renderer->backend].renderer_frame_begin(renderer->context); +} + +extern void +rend_renderer_frame_end(RendRenderer renderer, float *delta) +{ + RASSERT(renderer && (uintptr_t)renderer != 0xffffffff00000000 && "Invalid renderer. (Possible stack corruption.)"); + RASSERT(renderer->context, "Uninitialized renderer."); + RASSERT(renderer->in_frame, "Must be called inside a frame."); + RASSERT(!renderer->in_pass, "Must not be called inside a render pass."); + + renderer->in_frame = 0; + rend_vtables[renderer->backend].renderer_frame_end(renderer->context, delta); + renderer->frame_count++; +} + +extern void +rend_renderer_render_pass_begin(RendRenderer renderer, float r, float g ,float b, float a) +{ + renderer->in_pass = 1; + rend_vtables[renderer->backend].renderer_render_pass_begin(renderer, r, g, b, a); +} + +extern void +rend_renderer_render_pass_begin_texture(RendRenderer renderer, RendTexture *texture) +{ + renderer->in_pass = 1; + rend_vtables[renderer->backend].renderer_render_pass_begin_texture(renderer, texture); +} + +extern void +rend_renderer_render_pass_end_texture(RendRenderer renderer, RendTexture *texture) +{ + renderer->in_pass = 0; + rend_vtables[renderer->backend].renderer_render_pass_end_texture(renderer, texture); +} + + +extern void +rend_renderer_render_pass_end(RendRenderer renderer) +{ + renderer->in_pass = 0; + rend_vtables[renderer->backend].renderer_render_pass_end(renderer); +} + + +extern void +rend_descriptor_write_ubo(RendRenderer renderer, RendBuffer ubo, uint32_t binding, uint32_t slot) +{ + rend_vtables[renderer->backend].descriptor_write_buffer(renderer, ubo, binding, slot, 0, ubo.size, true); +} + +extern void +rend_descriptor_write_ssbo(RendRenderer renderer, RendBuffer ssbo, uint32_t binding, uint32_t slot) +{ + rend_vtables[renderer->backend].descriptor_write_buffer(renderer, ssbo, binding, slot, 0, ssbo.size, false); +} + +extern RendBuffer +rend_buffer_create(RendRenderer renderer, size_t size, RendBufferType type, bool gpu) { + RendBuffer buffer = rend_vtables[renderer->backend].buffer_create_lifetime(renderer, size, type, gpu, REND_LIFETIME_PERMANENT); + buffer.backend = renderer->backend; + return buffer; +} + +extern void +rend_buffer_destroy(RendBuffer *buffer) { + rend_vtables[buffer->backend].buffer_destroy(buffer); +} + +extern void +rend_buffer_write(RendRenderer renderer, RendBuffer *buffer, const void *data, size_t size, size_t offset) +{ + if (buffer->mapped_memory) { + uint8_t *ptr = buffer->mapped_memory; + memcpy(ptr + offset, data, size); + } else { + /* if the memory is bound to the device we must create and deallocate a transfer buffer */ + RendBuffer transfer_buffer = rend_vtables[buffer->backend].buffer_create_lifetime(renderer, size, REND_BUFFER_TRANSFER, false, REND_LIFETIME_FRAME); + memcpy(transfer_buffer.mapped_memory, data, size); + rend_vtables[buffer->backend].buffer_copy(renderer, buffer, offset, &transfer_buffer, 0, size); + rend_vtables[buffer->backend].buffer_destroy(&transfer_buffer); + } +} + +extern void +rend_buffer_copy(RendRenderer renderer, RendBuffer *dest, size_t dest_offset, RendBuffer *src, size_t src_offset, size_t bytes) +{ + rend_vtables[renderer->backend].buffer_copy(renderer, dest, dest_offset, src, src_offset, bytes); +} + +extern uint64_t +rend_buffer_address(RendBuffer *buffer) +{ + RASSERT(buffer != NULL); + return buffer->gpu_address; +} + +extern RendTexture +rend_texture_create(RendRenderer renderer, uint32_t width, uint32_t height, uint32_t depth, uint32_t mip_levels, uint32_t layers, RendFormat format) +{ + RendTexture tex = rend_vtables[renderer->backend].texture_create(renderer, width, height, depth, mip_levels, layers, format); + tex.backend = renderer->backend; + return tex; +} + +extern RendTexture +rend_texture_create_from_data(RendRenderer renderer, const void *data, uint32_t width, uint32_t height, RendFormat format) +{ + RendTexture tex = rend_vtables[renderer->backend].texture_create(renderer, width, height, 1, 1, 1, format); + tex.backend = renderer->backend; + + uint32_t size = width * height * rend_format_size[format]; + + RendBuffer staging_buffer = rend_vtables[renderer->backend].buffer_create_lifetime(renderer, size, REND_BUFFER_TRANSFER, false, REND_LIFETIME_FRAME); + memcpy(staging_buffer.mapped_memory, data, size); + rend_vtables[renderer->backend].texture_copy_buffer(renderer, &tex, &staging_buffer); + rend_vtables[renderer->backend].buffer_destroy(&staging_buffer); + return tex; +} + +extern void +rend_texture_copy_data(RendRenderer renderer, RendTexture *texture, const void *data, size_t size) +{ + RendBuffer staging_buffer = rend_vtables[renderer->backend].buffer_create_lifetime(renderer, size, REND_BUFFER_TRANSFER, false, REND_LIFETIME_FRAME); + memcpy(staging_buffer.mapped_memory, data, size); + rend_vtables[renderer->backend].texture_copy_buffer(renderer, texture, &staging_buffer); + rend_vtables[renderer->backend].buffer_destroy(&staging_buffer); +} + + +extern void +rend_texture_copy_buffer(RendRenderer renderer, RendTexture *texture, RendBuffer *buffer) +{ + rend_vtables[renderer->backend].texture_copy_buffer(renderer, texture, buffer); +} + +extern void +rend_texture_blit(RendRenderer renderer, RendTexture *src, RendTexture *dst, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h) +{ + rend_vtables[renderer->backend].texture_blit(renderer, src, dst, src_x, src_y, src_w, src_h, dst_x, dst_y, dst_w, dst_h); +} + +extern uint64_t +rend_texture_id(RendTexture *texture) +{ + return texture->id; +} + +extern void +rend_texture_destroy(RendRenderer renderer, RendTexture *tex) +{ + rend_vtables[renderer->backend].texture_destroy(renderer, tex); +} + +extern void +rend_pipeline_push_constants(RendPipeline pipeline, void *push_data, size_t size) +{ + RASSERT(pipeline != NULL && "Pipeline handle is NULL!"); + RASSERT(rend_vtables[pipeline->backend].pipeline_push_constants && "Backend function not implemented!"); + rend_vtables[pipeline->backend].pipeline_push_constants(pipeline, push_data, size); +} + +extern void +rend_pipeline_bind_vertex_buffer(RendPipeline pipeline, uint32_t binding, RendBuffer buffer, size_t offset) +{ + rend_vtables[pipeline->backend].pipeline_bind_vertex_buffer(pipeline, binding, buffer, offset); +} + +extern void +rend_pipeline_bind_index_buffer(RendPipeline pipeline, RendBuffer buffer, size_t offset, RendIndexType index_type) +{ + rend_vtables[pipeline->backend].pipeline_bind_index_buffer(pipeline, buffer, offset, index_type); +} + +extern void +rend_pipeline_bind_texture(RendPipeline pipeline, RendTexture *texture, uint32_t binding, uint32_t slot) +{ + rend_vtables[pipeline->backend].descriptor_write_texture(pipeline->backend_ctx, texture, binding, slot); +} + +extern void +rend_descriptor_write_texture(RendRenderer renderer, RendTexture *texture, uint32_t binding, uint32_t slot) +{ + rend_vtables[renderer->backend].descriptor_write_texture(renderer->context, texture, binding, slot); +} + + +extern RendPipeline +rend_pipeline_create_graphics_spirv(RendRenderer renderer, uint8_t *vertex_bytes, size_t vertex_size, uint8_t *frag_bytes, size_t frag_size, const RendVertexBinding *vertex_bindings, uint32_t vertex_binding_count, const RendVertexAttributes *vertex_attributes, uint32_t vertex_attribute_count, const RendPushConstantInfo *push_constants, uint32_t push_constant_count, RendPolygonMode polygon_mode, RendCullMode cull_mode, RendTopology topology, RendFormat color_format, bool depth_test_enable) +{ + RendPipeline pipeline = rmalloc(sizeof *pipeline); + + Rend__PipelineConfig config = { + .vertex_bindings = vertex_bindings, + .vertex_binding_count = vertex_binding_count, + .vertex_attributes = vertex_attributes, + .vertex_attribute_count = vertex_attribute_count, + .push_constants = push_constants, + .push_constant_count = push_constant_count, + .polygon_mode = polygon_mode, + .cull_mode = cull_mode, + .topology = topology, + .depth_test_enable = depth_test_enable, + + .color_format = color_format, + }; + + if (rend_vtables[renderer->backend].pipeline_create(renderer, pipeline, config, REND__PIPELINE_GRAPHICS, vertex_bytes, vertex_size, frag_bytes, frag_size, NULL, 0)) { + pipeline->backend = renderer->backend; + + pipeline->next = renderer->pipeline_head; + pipeline->prev = NULL; + renderer->pipeline_head = pipeline; + pipeline->type = REND__PIPELINE_GRAPHICS; + if(pipeline->next) { + pipeline->next->prev = pipeline; + } + + return pipeline; + } + rfree(pipeline); + return NULL; +} + +extern RendPipeline +rend_pipeline_create_graphics_bindless_spirv(RendRenderer renderer, uint8_t *vertex_bytes, size_t vertex_size, uint8_t *frag_bytes, size_t frag_size, const RendPushConstantInfo *push_constants, uint32_t push_constant_count, RendPolygonMode polygon_mode, RendCullMode cull_mode, RendTopology topology, RendFormat color_format, bool depth_test_enable) +{ + RendPipeline pipeline = rmalloc(sizeof *pipeline); + + Rend__PipelineConfig config = { + .vertex_bindings = NULL, + .vertex_binding_count = 0, + .vertex_attributes = NULL, + .vertex_attribute_count = 0, + .push_constants = push_constants, + .push_constant_count = push_constant_count, + .polygon_mode = polygon_mode, + .cull_mode = cull_mode, + .topology = topology, + .depth_test_enable = depth_test_enable, + + .color_format = color_format, + }; + + if (rend_vtables[renderer->backend].pipeline_create(renderer, pipeline, config, REND__PIPELINE_GRAPHICS, vertex_bytes, vertex_size, frag_bytes, frag_size, NULL, 0)) { + pipeline->backend = renderer->backend; + + pipeline->next = renderer->pipeline_head; + pipeline->prev = NULL; + renderer->pipeline_head = pipeline; + pipeline->type = REND__PIPELINE_GRAPHICS; + if(pipeline->next) { + pipeline->next->prev = pipeline; + } + + return pipeline; + } + rfree(pipeline); + return NULL; +} + +extern RendPipeline +rend_pipeline_create_compute_spirv(RendRenderer renderer, const uint8_t *compute_bytes, size_t compute_size, const RendPushConstantInfo *push_constants, uint32_t push_constant_count) +{ + RendPipeline pipeline = rmalloc(sizeof *pipeline); + Rend__PipelineConfig config = { + .push_constants = push_constants, + .push_constant_count = push_constant_count, + }; + + if (rend_vtables[renderer->backend].pipeline_create(renderer, pipeline, config, REND__PIPELINE_COMPUTE, compute_bytes, compute_size, NULL, 0, NULL, 0)) { + pipeline->backend = renderer->backend; + pipeline->type = REND__PIPELINE_COMPUTE; + + pipeline->next = renderer->pipeline_head; + pipeline->prev = NULL; + renderer->pipeline_head = pipeline; + if(pipeline->next) { + pipeline->next->prev = pipeline; + } + + return pipeline; + } + rfree(pipeline); + return NULL; +} + +extern RendPipeline +rend_pipeline_create_meshlet_spirv(RendRenderer renderer, uint8_t *meshlet_bytes, size_t meshlet_size, uint8_t *frag_bytes, size_t frag_size, const RendPushConstantInfo *push_constants, uint32_t push_constant_count, RendPolygonMode polygon_mode, RendCullMode cull_mode, bool depth_test_enable) +{ + RendPipeline pipeline = rmalloc(sizeof *pipeline); + Rend__PipelineConfig config = { + .push_constants = push_constants, + .push_constant_count = push_constant_count, + .polygon_mode = polygon_mode, + .cull_mode = cull_mode, + .depth_test_enable = depth_test_enable + }; + if (rend_vtables[renderer->backend].pipeline_create(renderer, pipeline, config, REND__PIPELINE_MESH, meshlet_bytes, meshlet_size, frag_bytes, frag_size, NULL, 0)) { + pipeline->backend = renderer->backend; + pipeline->type = REND__PIPELINE_MESH; + + pipeline->next = renderer->pipeline_head; + pipeline->prev = NULL; + renderer->pipeline_head = pipeline; + if(pipeline->next) { + pipeline->next->prev = pipeline; + } + + return pipeline; + } + rfree(pipeline); + return NULL; +} + +extern void +rend_pipeline_bind(RendPipeline pipeline) +{ + rend_vtables[pipeline->backend].pipeline_bind(pipeline); +} + +extern void +rend_pipeline_dispatch(RendPipeline pipeline, uint32_t x, uint32_t y, uint32_t z) +{ + rend_vtables[pipeline->backend].pipeline_dispatch(pipeline, x, y, z); +} + +extern void +rend_pipeline_draw(RendPipeline pipeline, size_t count, uint32_t instance_count) +{ + rend_vtables[pipeline->backend].pipeline_draw(pipeline, count, instance_count); +} + +extern void +rend_pipeline_draw_indexed(RendPipeline pipeline, uint32_t index_count, uint32_t first_index, int32_t vertex_offset, uint32_t instance_count) +{ + rend_vtables[pipeline->backend].pipeline_draw_indexed(pipeline, index_count, first_index, vertex_offset, instance_count); +} + +extern void +rend_pipeline_set_blend(RendPipeline pipeline, bool blend) +{ + rend_vtables[pipeline->backend].pipeline_set_blend(pipeline, blend); +} + +extern void +rend_cmd_render_begin(RendRenderer renderer, float r, float g, float b, float a) +{ + renderer->in_pass = 1; + rend_vtables[renderer->backend].renderer_render_pass_begin(renderer, r, g, b, a); +} + +extern void +rend_cmd_render_begin_texture(RendRenderer renderer, RendTexture *texture) +{ + renderer->in_pass = 1; + rend_vtables[renderer->backend].renderer_render_pass_begin_texture(renderer, texture); +} + +extern void +rend_cmd_render_end(RendRenderer renderer) +{ + renderer->in_pass = 0; + rend_vtables[renderer->backend].renderer_render_pass_end(renderer); +} + +extern void +rend_cmd_render_end_texture(RendRenderer renderer, RendTexture *texture) +{ + renderer->in_pass = 0; + rend_vtables[renderer->backend].renderer_render_pass_end_texture(renderer, texture); +} + +extern void +rend_cmd_bind_pipeline(RendPipeline pipeline) +{ + rend_vtables[pipeline->backend].pipeline_bind(pipeline); +} + +extern void +rend_cmd_bind_vertex_buffer(RendPipeline pipeline, uint32_t binding, RendBuffer buffer, size_t offset) +{ + rend_vtables[pipeline->backend].pipeline_bind_vertex_buffer(pipeline, binding, buffer, offset); +} + +extern void +rend_cmd_bind_index_buffer(RendPipeline pipeline, RendBuffer buffer, size_t offset, RendIndexType index_type) +{ + rend_vtables[pipeline->backend].pipeline_bind_index_buffer(pipeline, buffer, offset, index_type); +} + +extern void +rend_cmd_push_constants(RendPipeline pipeline, void *push_data, size_t size) +{ + assert(pipeline != NULL && "Pipeline handle is NULL!"); + assert(rend_vtables[pipeline->backend].pipeline_push_constants && "Backend function not implemented!"); + rend_vtables[pipeline->backend].pipeline_push_constants(pipeline, push_data, size); +} + +extern void +rend_cmd_dispatch(RendPipeline pipeline, uint32_t x, uint32_t y, uint32_t z) +{ + rend_vtables[pipeline->backend].pipeline_dispatch(pipeline, x, y, z); +} + +extern void +rend_cmd_draw(RendPipeline pipeline, size_t count, uint32_t instance_count) +{ + rend_vtables[pipeline->backend].pipeline_draw(pipeline, count, instance_count); +} + +extern void +rend_cmd_draw_indexed(RendPipeline pipeline, uint32_t index_count, uint32_t first_index, int32_t vertex_offset, uint32_t instance_count) +{ + rend_vtables[pipeline->backend].pipeline_draw_indexed(pipeline, index_count, first_index, vertex_offset, instance_count); +} + +extern void +rend_cmd_blit(RendRenderer renderer, RendTexture *src, RendTexture *dst, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h) +{ + RASSERT(renderer->in_frame && "Must be called while rendering a frame!"); + RASSERT(!renderer->in_pass && "Must be called outside a render pass!"); + renderer->in_pass = true; + rend_vtables[renderer->backend].texture_blit(renderer, src, dst, src_x, src_y, src_w, src_h, dst_x, dst_y, dst_w, dst_h); +} + +static bool +rend__renderer_init_recursive(RendRenderer renderer, RendBackendType backend, bool auto_pick) +{ + /* set autopick to true and set backend to first backend*/ + if (backend == REND_BACKEND_AUTO) { + backend++; + auto_pick = true; + } + + switch (backend) { + default: + /* unless using auto pick to pick renderers, crash */ + if (!auto_pick) REND__CRASH("Invalid backend type!"); + + case REND_BACKEND_VULKAN_14: + if (rend_vk_init()) { + rend_backend_vk_initialized = true; + renderer->backend = REND_BACKEND_VULKAN_14; + return true; + } + break; + } + + if (auto_pick) { + backend++; + if (backend >= REND_BACKEND_COUNT) { + return false; + } + + /* recursively try next backend */ + return rend__renderer_init_recursive(renderer, backend, auto_pick); + } + + return false; +} + +static void +rend__renderer_destroy_recursive(RendRenderer renderer) +{ + if (renderer == NULL) return; + + rend__renderer_destroy_recursive(renderer->next); + + if (renderer->backend != 0) { + rend_vtables[renderer->backend].renderer_destroy(renderer); + } + + rend__pipeline_destroy_recursive(renderer->pipeline_head); + rfree(renderer); +} + +static void +rend__pipeline_destroy_recursive(RendPipeline pipeline) +{ + if (pipeline == NULL) return; + rend__pipeline_destroy_recursive(pipeline->next); + rfree(pipeline); +} diff --git a/Rend/rend.h b/Rend/rend.h new file mode 100644 index 0000000..a9a4a81 --- /dev/null +++ b/Rend/rend.h @@ -0,0 +1,331 @@ +/* =========================================================================== + * REND - Renderer Library - Copyright (c) 2026 Vasco Alves + * + * DESCRIPTION: + * - High level graphics rendering API around Vulkan 1.4 + * - Pushes data to the GPU in a highly configurable and STABLE fashion. + * - Is not responsible for initializing windows. + * - Is not responsible for compiling shaders. + * - Depends on PODIUM to be cross-platform. + * + * =========================================================================== */ + +#ifndef _REND_H_ +#define _REND_H_ + +#define REND_MAJOR 1 // breaking API changes +#define REND_MINOR 0 // non-breaking features +#define REND_PATCH 1 // non-breaking patches and bug fixes + +#define P_MODULE_VULKAN +#define P_MODULE_MATH +#include "podium.h" + +typedef struct rend_renderer_t* RendRenderer; // renderer target handle +typedef struct rend_pipeline_t* RendPipeline; // represents a baked shader + gpu pipeline state (blend mode, depth, vertex format) + +typedef struct RendMemory RendMemory; +typedef struct RendSpecs RendSpecs; +typedef struct RendBuffer RendBuffer; +typedef struct RendTexture RendTexture; + +/* Typedef enums as 16 bit unsigned integers */ +typedef uint16_t RendBackendType; +typedef uint16_t RendLifetime; +typedef uint16_t RendFormat; +typedef uint16_t RendTopology; +typedef uint16_t RendCullMode; +typedef uint16_t RendPolygonMode; +typedef uint16_t RendBufferType; + +typedef enum RendInputRate { REND_INPUT_RATE_INSTANCE, REND_INPUT_RATE_VERTEX } RendInputRate; +typedef enum RendIndexType { REND_INDEX_UINT16 = 16, REND_INDEX_UINT32 = 32 } RendIndexType; + +typedef struct { + uint64_t binding; + uint64_t stride; + uint8_t input_rate; +} RendVertexBinding; + +typedef struct { + uint64_t location; + uint64_t binding; + uint64_t offset; + RendFormat format; +} RendVertexAttributes; + +typedef struct { + uint32_t offset; + uint32_t size; +} RendPushConstantInfo; + +#define REND_MAX_BINDINGS 8 + +typedef struct { + uint32_t ubo_bindings[REND_MAX_BINDINGS]; + uint32_t ubo_array_sizes[REND_MAX_BINDINGS]; + uint32_t ubo_binding_count; + + uint32_t ssbo_bindings[REND_MAX_BINDINGS]; + uint32_t ssbo_array_sizes[REND_MAX_BINDINGS]; + uint32_t ssbo_binding_count; + + uint32_t texture_bindings[REND_MAX_BINDINGS]; + uint32_t texture_array_sizes[REND_MAX_BINDINGS]; + uint32_t texture_binding_count; +} RendBindingInfo; // the binding of rend: rebirth + +/* Clean up */ +extern void rend_quit(void); // Will free ALL resources created by the library such as RendRenderer, RendPipeline, RendBuffer and RendTexture. + +/* Renderer */ +extern RendRenderer rend_renderer_create(P_Window*, RendBackendType backend, void* device, bool vsync, RendBindingInfo *bind_info); // Create Renderer that renders to a target window with +extern void rend_renderer_destroy(RendRenderer renderer); // Destroy renderer. Unless you need to freely create and destroy renderers, you can rely on rend_quit to clean up. +extern bool rend_renderer_frame_begin(RendRenderer renderer); // May fail. Acquires backbuffer and starts recording commands! +extern void rend_renderer_frame_end(RendRenderer renderer, float *delta); // Stops recording commands and presents the contents to the screen. + +/* Write to Descriptor Sets */ +extern void rend_descriptor_write_ubo(RendRenderer, RendBuffer ubo, uint32_t binding, uint32_t slot); // +extern void rend_descriptor_write_ssbo(RendRenderer, RendBuffer ssbo, uint32_t binding, uint32_t slot); +extern void rend_descriptor_write_texture(RendRenderer, RendTexture *texture, uint32_t binding, uint32_t slot); // Writes texture to a slot in the texture array. Does not need to be in the main render loop. + +/* Buffers */ +extern RendBuffer rend_buffer_create(RendRenderer renderer, size_t size, RendBufferType type, bool gpu); // Create a buffer. The type flags define what usage is passed to the backend. Setting gpu to true will make the memory static, otherwise memory will be dynamic. +extern void rend_buffer_destroy(RendBuffer *buffer); // Destroy a buffer. Does not deallocate it's memory. +extern void rend_buffer_write(RendRenderer renderer, RendBuffer *buffer, const void *data, size_t size, size_t offset); // Write to buffer. Works for dynamically and statically allocated buffers. +extern void rend_buffer_copy(RendRenderer renderer, RendBuffer *dest, size_t dest_offset, RendBuffer *src, size_t src_offset, size_t bytes); +extern uint64_t rend_buffer_address(RendBuffer *buffer); // Returns 64 bit address to buffer memory. + +/* Textures */ +extern RendTexture rend_texture_create(RendRenderer renderer, uint32_t width, uint32_t height, uint32_t depth, uint32_t mip_levels, uint32_t layers, RendFormat format); // Create a texture. +extern RendTexture rend_texture_create_from_data(RendRenderer renderer, const void *data, uint32_t width, uint32_t height, RendFormat format); // Create texture and copy data to it immediately. +extern void rend_texture_destroy(RendRenderer renderer, RendTexture *texture); // Destroy texture. Does not deallocate it's memory from the bump allocator. +extern void rend_texture_copy_data(RendRenderer renderer, RendTexture *texture, const void *data, size_t size); // Copy data to texture. MUST be the same size as the format expects (width x height x sizeof format). +extern void rend_texture_copy_buffer(RendRenderer renderer, RendTexture *texture, RendBuffer *buffer); // Copy buffer to texture. + +/* Create, Configure, and Destroy Rendering Pipelines */ +extern RendPipeline rend_pipeline_create_graphics_spirv(RendRenderer renderer, uint8_t *vertex_bytes, size_t vertex_size, uint8_t *frag_bytes, size_t frag_size, const RendVertexBinding *vertex_bindings, uint32_t vertex_binding_count, const RendVertexAttributes *vertex_attributes, uint32_t vertex_attribute_count, const RendPushConstantInfo *push_constants, uint32_t push_constant_count, RendPolygonMode polygon_mode, RendCullMode cull_mode, RendTopology topology, RendFormat color_format, bool depth_test_enable); // Create a pipeline for a renderer using a configuration handle. +extern RendPipeline rend_pipeline_create_graphics_bindless_spirv(RendRenderer renderer, uint8_t *vertex_bytes, size_t vertex_size, uint8_t *frag_bytes, size_t frag_size, const RendPushConstantInfo *push_constants, uint32_t push_constant_count, RendPolygonMode polygon_mode, RendCullMode cull_mode, RendTopology topology, RendFormat color_format, bool depth_test_enable); // Create a pipeline for a renderer using a configuration handle. +extern RendPipeline rend_pipeline_create_meshlet_spirv(RendRenderer renderer, uint8_t *meshlet_bytes, size_t meshlet_size, uint8_t *frag_bytes, size_t frag_size, const RendPushConstantInfo *push_constants, uint32_t push_constant_count, RendPolygonMode polygon_mode, RendCullMode cull_mode, bool depth_test_enable); // Creates a meshlet rendering pipeline. +extern RendPipeline rend_pipeline_create_compute_spirv(RendRenderer renderer, const uint8_t *compute_bytes, size_t compute_size, const RendPushConstantInfo *push_constants, uint32_t push_constant_count); // Create a compute pipeline. + +/* Commands */ +extern void rend_cmd_render_begin(RendRenderer renderer, float r, float g, float b, float a); // Begin render pass to default target the window. +extern void rend_cmd_render_begin_texture(RendRenderer renderer, RendTexture *texture); // Begin render pass with a texture as the target. +extern void rend_cmd_render_end(RendRenderer renderer); // End render pass. +extern void rend_cmd_render_end_texture(RendRenderer renderer, RendTexture *texture); // End render pass that targets texture. Transition texture to read optimal format. +extern void rend_cmd_bind_pipeline(RendPipeline pipeline); // Bind the pipeline to this frame. +extern void rend_cmd_bind_vertex_buffer(RendPipeline pipeline, uint32_t binding, RendBuffer buffer, size_t offset); // Bind vertex buffer to this graphics pipeline. +extern void rend_cmd_bind_index_buffer(RendPipeline pipeline, RendBuffer buffer, size_t offset, RendIndexType index_type); // Bind index buffer to this graphics pipeline. +extern void rend_cmd_push_constants(RendPipeline pipeline, void *push_data, size_t size); // Send push constants to this pipeline / command buffer. +extern void rend_cmd_dispatch(RendPipeline pipeline, uint32_t x, uint32_t y, uint32_t z); // Dispatch compute commands to group with dimensions x, y, z! +extern void rend_cmd_draw(RendPipeline pipeline, size_t count, uint32_t instance_count); // Calls draw command on the pipeline. +extern void rend_cmd_draw_indexed(RendPipeline pipeline, uint32_t index_count, uint32_t first_index, int32_t vertex_offset, uint32_t instance_count); // Draw the pipeline using indexed rendering. +extern void rend_cmd_blit(RendRenderer renderer, RendTexture *src, RendTexture *dst, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h); // Blit a section of one texture onto another texture. + +enum RendBackendType_t { + REND_BACKEND_AUTO = 0, + REND_BACKEND_VULKAN_14, + REND_BACKEND_COUNT +}; + +enum RendLifetime_t { + REND_LIFETIME_FRAME = 0, + REND_LIFETIME_PERMANENT +}; + +enum RendTopology_t { + REND_TOPOLOGY_TRIANGLE_LIST = 0, + REND_TOPOLOGY_TRIANGLE_STRIP, + REND_TOPOLOGY_LINE_LIST, + REND_TOPOLOGY_LINE_STRIP, + REND_TOPOLOGY_POINT_LIST, +}; + +enum RendCullMode_t { + REND_CULL_MODE_NONE = 0, + REND_CULL_MODE_FRONT, + REND_CULL_MODE_BACK, + REND_CULL_MODE_FRONT_AND_BACK, +}; + +enum RendPolygonMode_t { + REND_POLYGON_MODE_FILL = 0, + REND_POLYGON_MODE_LINE, + REND_POLYGON_MODE_POINT, +}; + +enum RendFormat_t { + REND_FORMAT_UNDEFINED = 0, + REND_FORMAT_R8_UNORM, + REND_FORMAT_R8G8_UNORM, + REND_FORMAT_R8G8B8A8_UNORM, + REND_FORMAT_B8G8R8A8_UNORM, + + REND_FORMAT_R8G8B8A8_SRGB, + REND_FORMAT_B8G8R8A8_SRGB, + + REND_FORMAT_R32_SFLOAT, + REND_FORMAT_R32G32_SFLOAT, + REND_FORMAT_R32G32B32_SFLOAT, + REND_FORMAT_R32G32B32A32_SFLOAT, + + /* useful aliases */ + REND_FORMAT_1_SFLOAT32 = REND_FORMAT_R32_SFLOAT, + REND_FORMAT_2_SFLOAT32 = REND_FORMAT_R32G32_SFLOAT, + REND_FORMAT_3_SFLOAT32 = REND_FORMAT_R32G32B32_SFLOAT, + REND_FORMAT_4_SFLOAT32 = REND_FORMAT_R32G32B32A32_SFLOAT, + + REND_FORMAT_R16_SFLOAT, + REND_FORMAT_R16G16_SFLOAT, + REND_FORMAT_R16G16B16A16_SFLOAT, + + REND_FORMAT_R8G8B8A8_UINT, + REND_FORMAT_R16G16B16A16_UINT, + REND_FORMAT_R32_UINT, + REND_FORMAT_R32_SINT, + REND_FORMAT_R32G32B32A32_UINT, + + REND_FORMAT_D32_SFLOAT, + REND_FORMAT_D24_UNORM_S8_UINT, + REND_FORMAT_D32_SFLOAT_S8_UINT, + + REND_FORMAT_COUNT +}; + +static size_t rend_format_size[REND_FORMAT_COUNT] = { + [REND_FORMAT_UNDEFINED] = 0, + + [REND_FORMAT_R8_UNORM] = 1, + [REND_FORMAT_R8G8_UNORM] = 2, + [REND_FORMAT_R8G8B8A8_UNORM] = 4, + [REND_FORMAT_B8G8R8A8_UNORM] = 4, + + [REND_FORMAT_R8G8B8A8_SRGB] = 4, + [REND_FORMAT_B8G8R8A8_SRGB] = 4, + + [REND_FORMAT_R32_SFLOAT] = 4, + [REND_FORMAT_R32G32_SFLOAT] = 8, + [REND_FORMAT_R32G32B32_SFLOAT] = 12, + [REND_FORMAT_R32G32B32A32_SFLOAT] = 16, + + [REND_FORMAT_R16_SFLOAT] = 2, + [REND_FORMAT_R16G16_SFLOAT] = 4, + [REND_FORMAT_R16G16B16A16_SFLOAT] = 8, + + [REND_FORMAT_R8G8B8A8_UINT] = 4, + [REND_FORMAT_R16G16B16A16_UINT] = 8, + [REND_FORMAT_R32_UINT] = 4, + [REND_FORMAT_R32_SINT] = 4, + [REND_FORMAT_R32G32B32A32_UINT] = 16, + + [REND_FORMAT_D32_SFLOAT] = 4, + [REND_FORMAT_D24_UNORM_S8_UINT] = 4, + [REND_FORMAT_D32_SFLOAT_S8_UINT] = 8, // typically padded to 64-bit alignment by GPU drivers +}; + +enum RendBufferType_t { + REND_BUFFER_VERTEX , + REND_BUFFER_INDEX , + REND_BUFFER_UNIFORM , + REND_BUFFER_STORAGE , + REND_BUFFER_INDIRECT , + REND_BUFFER_TRANSFER , + REND_BUFFER_COUNT , +}; + + + +/* CHANGE LOG + * 0.1.0 - @vasco - vulkan instance + * 0.1.1 - @vasco - swapchain + * 0.1.2 - @vasco - command buffers + * 0.2.0 - @vasco - push basic vertex data to the gpu + * 0.3.1 - @vasco - Fixed rend_quit not freeing all objects. + * 0.4.0 - @vasco - Added resource sets. + * 0.4.1 - @vasco - Fixed binding descriptor sets. + * 0.4.2 - @vasco - Fixed capped framerate due to FIFO being always enabled and added vsync option. + * 0.4.3 - @vasco - Replaced bad fence based synchronization with a single timeline semaphore. + * 0.4.4 - @vasco - Deprecated pipeline destruction and clearing because it doesnt make any sense. + * 0.4.5 - @vasco - Exposed depth testing. + * 0.5.0 - @vasco - Host-visible buffers + * 0.5.1 - @vasco - Removed RendMemProperties from public API. + * 0.5.2 - @vasco - push_data is now push_vertices_and_draw and pipeline_draw not takes vertex count + * 0.6.0 - @vasco - indexed rendering + * 0.6.1 - @vasco - cool beans + * 0.6.2 - @vasco - Removed RendMemProperties is back. + * 0.6.3 - @vasco - push_data removed in favor of making the pipeline more low level. A prebuilt "gfx" pipeline can be added in the future. + * 0.6.4 - @vasco - Moved to push constants and bindless descriptors unde the hood. + * 0.7.0 - @vasco - Low level buffer creation API if you want device-local data. + * 0.7.1 - @vasco - typedefs for ease of use + * 0.8.0 - @vasco - bindless resources + * 0.8.1 - @vasco - remove old binding code from backend + * 0.8.2 - @vasco - nothing works!!! + * 0.8.3 - @vasco - pool allocator + * 0.8.4 - @vasco - buffers 2.0 + * 0.8.5 - @vasco - memory 2.0 + * 0.8.6 - @vasco - arena allocator + * 0.8.7 - @vasco - everything works!!! + * 0.8.8 - @vasco - fix device selection + * 0.8.9 - @vasco - images 2.0 + * 0.9.0 - @vasco - textures!!!!! + * 0.9.1 - @vasco - clear to color + * 0.10.0 - @vasco - instanced rendering + * 0.10.1 - @vasco - API clean up pt. 1 (remove RendShader in favor of pointers to data) + * 0.10.2 - @vasco - API clean up pt. 2 (remove RendPipelineConfig in favor of large functions) + * 0.11.0 - @vasco - compute shaders, dispatch command and render pass is now separate + * 0.11.1 - @vasco - better descriptor binding, multiple ubo, ssbo and texture arrays + * 0.11.2 - @vasco - cool beans + * 1.0.0 - @vasco - finished API release + * 1.0.1 - @vasco - render pass that targets textures + * + * 1.0.0 finished API release + * + * ------------------------------------------- + * + * 1.1.0 shader hot realoading plugin (need to add settings managament and dll loading to Podium) + */ + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2026 Vasco Alves +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ + +#endif diff --git a/Rend/rend_internal.h b/Rend/rend_internal.h new file mode 100644 index 0000000..03e6634 --- /dev/null +++ b/Rend/rend_internal.h @@ -0,0 +1,205 @@ +#ifndef REND_INTERNAL_H +#define REND_INTERNAL_H + +#include "rend_vk_internal.h" + + +#if defined(REND_DEBUG) +#define P_LOG_DEBUG_ENABLED 1 +#define RASSERT(a, s) assert((a) && s) +#else +#define RASSERT(a,s) ((void*)0) +#endif + +#if defined(REND_DEBUG_MEMORY) +#define rmalloc(size) p_debug_malloc_impl((size), __FILE__, __LINE__, __func__) +#define rrealloc(ptr, size) p_debug_realloc_impl((ptr), (size), __FILE__, __LINE__, __func__) +#define rfree(ptr) p_debug_free_impl((ptr), __FILE__, __LINE__, __func__) +#else +#define rmalloc malloc +#define rrealloc(ptr, size) realloc((ptr), (size)) +#define rfree free +#endif + +#define REND_TODO \ + do { \ + fprintf(stderr, "REND TODO: %s() in %s:%d\n", __func__, __FILE__, __LINE__); \ + abort(); \ + } while(0) + +#define REND__CRASH(...)\ + PERROR(__VA_ARGS__);\ + exit(1); + +#define REND__WARN(...) PWARN("[REND] "__VA_ARGS__); + +#include "podium.h" +#include "rend.h" + +#include <stdint.h> + +typedef void* RendContextHandle; + +enum RendPipelineType { + REND__PIPELINE_GRAPHICS, + REND__PIPELINE_COMPUTE, + REND__PIPELINE_MESH, +}; + +typedef struct rend_pipeline_config_t { + + const RendVertexBinding *vertex_bindings; + const RendVertexAttributes *vertex_attributes; + const RendPushConstantInfo *push_constants; + + uint32_t vertex_binding_count; + uint32_t vertex_attribute_count; + uint32_t push_constant_count; + + uint16_t color_format; + uint16_t depth_format; + + uint16_t polygon_mode; + uint16_t cull_mode; + uint16_t topology; + + uint8_t depth_test_enable; +} Rend__PipelineConfig; + +typedef struct { + RendContextHandle (*renderer_create)(); + + void (*renderer_destroy)(RendContextHandle); + + bool (*renderer_frame_begin)(RendContextHandle); + void (*renderer_frame_end)(RendContextHandle, float *delta); + + void (*descriptor_write_buffer)(RendRenderer renderer, RendBuffer ubo, uint32_t binding, uint32_t slot, uint32_t offset, uint32_t size, bool is_ubo); + void (*descriptor_write_texture)(void *ctx, RendTexture *texture, uint32_t binding, uint32_t slot); + + RendBuffer (*buffer_create_lifetime)(RendRenderer renderer, size_t size, RendBufferType type, bool gpu, int lifetime); + void (*buffer_destroy)(RendBuffer *buffer); + void (*buffer_copy)(RendRenderer renderer, RendBuffer *dest, size_t dest_offset, RendBuffer *src, size_t src_offset, size_t bytes); + + RendTexture (*texture_create)(RendRenderer renderer, uint32_t width, uint32_t height, uint32_t depth, uint32_t mip_levels, uint32_t layers, RendFormat format); + void (*texture_destroy)(RendRenderer renderer, RendTexture *tex); + void (*texture_copy_buffer)(RendRenderer renderer, RendTexture *texture, RendBuffer *buffer); + void (*texture_blit)(RendRenderer renderer, RendTexture *src, RendTexture *dst, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h); + + bool (*pipeline_create)(RendRenderer, RendPipeline, Rend__PipelineConfig, uint8_t type, const uint8_t *shader1, size_t bytes1, const uint8_t *shader2, size_t bytes2, const uint8_t *shader3, size_t bytes3); + void (*pipeline_bind)(RendPipeline); + void (*pipeline_push_constants)(RendPipeline pipeline, void *push_data, size_t size); + + void (*pipeline_bind_vertex_buffer)(RendPipeline pipeline, uint32_t binding, RendBuffer buffer, size_t offset); + void (*pipeline_bind_index_buffer)(RendPipeline pipeline, RendBuffer buffer, size_t offset, RendIndexType index_type); + + void (*pipeline_dispatch)(RendPipeline pipeline, uint32_t x, uint32_t y, uint32_t z); + void (*pipeline_draw)(RendPipeline, size_t count, uint32_t instance_count); + void (*pipeline_draw_indexed)(RendPipeline pipeline, uint32_t index_count, uint32_t first_index, int32_t vertex_offset, uint32_t instance_count); + void (*pipeline_set_blend)(RendPipeline, bool); + + void (*renderer_render_pass_begin)(RendRenderer renderer, float r, float g, float b, float a); + void (*renderer_render_pass_begin_texture)(RendRenderer, RendTexture*); + void (*renderer_render_pass_end)(RendRenderer renderer); + void (*renderer_render_pass_end_texture)(RendRenderer renderer, RendTexture*); +} RendVTable; + + +struct rend_pipeline_t { + struct rend_pipeline_t *next; + struct rend_pipeline_t *prev; + void *backend_ctx; + uint32_t idx; // index into renderers internal array of pipelines + uint32_t frame_count; + uint8_t backend; + uint8_t type; +}; + +struct rend_renderer_t { + struct rend_renderer_t *next; + struct rend_renderer_t *prev; + + struct rend_pipeline_t *pipeline_head; + RendContextHandle context; // backend specific internal data + P_Window *window; + uint64_t frame_count; + + RendBindingInfo bind_info; + + uint32_t texture_binding; + uint32_t texture_count; + uint32_t ubo_binding; + uint32_t ubo_count; + + uint8_t backend; + uint8_t in_frame; + uint8_t in_pass; + uint8_t vsync; +}; + + +/* NOTE(vasco): Its simpler if backeds all use a uniform struct than + * every single one having to basically redefine the same thing + */ + +struct RendMemory { + void *host_mapped_memory; // pointer if memory is host visible + uint64_t device_memory; // original device memory pointer + uint64_t size; // size of the memory allocation AFTER THE OFFSET + uint64_t offset; // we must sum the offset to device memory + uint32_t heap_index; // heap index where the memory is located + uint32_t id; // used by custom allocators +}; + +struct RendBuffer { + RendMemory memory; + void *mapped_memory; // pointer to offset memory + void *allocator; + void *logical_device; + uint64_t handle; + uint64_t gpu_address; // addresses must be buffer specific and cannot be generalized into memory because of how vulkan works + uint32_t usage; + uint32_t size; + uint8_t backend; +}; + +struct RendTexture { + + RendMemory memory; + void *ctx; + + uint64_t handle; + uint64_t view; + uint64_t sampler; + + uint64_t id; + + uint32_t width; + uint32_t height; + + uint32_t format; + + uint32_t depth; + uint32_t mip_levels; + uint32_t layers; + + uint32_t img_type; + uint32_t usage; + uint32_t sample_count_flags; + uint32_t sharing_mode; + + uint32_t layout; + + uint8_t backend; +}; + +struct RendSpecs { + bool graphics; + bool transfer; + bool compute; + bool present; + bool sampler_anisotropy; + bool discrete_gpu; +}; + +#endif diff --git a/Rend/rend_vk.c b/Rend/rend_vk.c new file mode 100644 index 0000000..ad1cc34 --- /dev/null +++ b/Rend/rend_vk.c @@ -0,0 +1,2149 @@ +#pragma once +#include "rend.h" +#include "rend_internal.h" +#include <stdint.h> +#include <vulkan/vulkan.h> +#include <vulkan/vulkan_core.h> + +#include "rend_vk_internal.h" +#include "rend_vk_allocator.c" +#include "rend_vk_device.c" +#include "rend_vk_arena.c" +#include "rend_vk_image.c" + +#define REND_MIN_FRAMES_IN_FLIGHT 2 // double buffering! +#define REND_MAX_FRAMES_IN_FLIGHT 4 // quadruple buffering! + +#define REND_VK_MAX_PIPELINES 100 + +typedef struct { + VkSwapchainKHR handle; + VkSurfaceFormatKHR format; + VkExtent2D extent; + + uint32_t image_count; + VkImage *images; + VkImageView *views; + + RendVkImage depth_attachment; +} RendVkSwapchain; + +typedef struct { + VkCommandPool command_pool; + VkCommandBuffer command_buffer; + VkSemaphore image_acquired_semaphore; +} RendVkFrameResources; + +typedef struct { + uint8_t push_data[128]; + uint32_t size; +} RendVkResourceSet; + +typedef struct RendVkPipeline { + void *ctx; + VkPipeline handle; + VkPipelineLayout layout; + uint32_t vertex_count; + uint32_t vertex_stride; + uint32_t push_constants_range; + + bool blend_enable; +} RendVkPipeline; + + +/* + * per renderer context, separate from global vk_ variables + * such as the instance, the allocator, the devices etc... + */ +typedef struct RendVk14Context { + + RendVkDevice device; // SPEC: All objects created or allocated from a VkDevice are private to that device, and must not be used on other devices. + + P_Window *window; + VkSurfaceKHR surface; + RendVkPipeline pipelines[REND_VK_MAX_PIPELINES]; + RendVkFrameResources frame_resources[REND_MAX_FRAMES_IN_FLIGHT]; + RendVkSwapchain swapchain; + VkSemaphore timeline_semaphore; + VkSemaphore render_complete_semaphores[REND_MAX_FRAMES_IN_FLIGHT]; + + VkCommandPool upload_command_pool; + VkCommandPool graphics_command_pool; + + RendVkArenaAllocator arena_persistent; // magical arena allocator for every type of memory + RendVkArenaAllocator arena_frame; + + uint64_t frame; + uint64_t frame_index; + uint64_t signal_value; + uint64_t next_signal_value; + uint64_t max_frames_in_flight; + uint32_t pipeline_count; + uint32_t image_index; + + bool require_swapchain_recreation; + + bool vsync; + bool in_frame; + + VkDescriptorPool descriptor_pool; + VkDescriptorSet desc_set; + VkDescriptorSetLayout desc_layout; + +} RendVk14Context; + + +/* function declarations */ +extern bool rend_vk_init(); +extern void rend_vk_quit(); + +extern RendContextHandle rend_vk_renderer_create(P_Window *window); +extern void rend_vk_renderer_destroy(RendContextHandle handle); +extern bool rend_vk_renderer_frame_begin(RendContextHandle handle); +extern void rend_vk_renderer_frame_end(RendContextHandle handle, float *delta); + +static inline void rend_vk__renderer_render_pass_begin_internal(RendContextHandle handle, float r, float g, float b, float a, uint64_t view_handle, uint64_t depth_attachment_view_handle, uint32_t offset_x, uint32_t offset_y, uint32_t width, uint32_t height); + +extern void rend_vk_renderer_render_pass_begin(RendRenderer renderer, float r, float g, float b, float a); +extern void rend_vk_renderer_render_pass_begin_texture(RendRenderer renderer, RendTexture *texture); +extern void rend_vk_renderer_render_pass_end(RendRenderer renderer); +extern void rend_vk_renderer_render_pass_end_texture(RendRenderer renderer, RendTexture *texture); + +extern void rend_vk_descriptor_write_buffer(RendRenderer renderer, RendBuffer ubo, uint32_t binding, uint32_t slot, uint32_t offset, uint32_t size, bool is_ubo); +extern void rend_vk_descriptor_write_texture(void *ctx, RendTexture *texture, uint32_t binding, uint32_t slot); + +extern RendBuffer rend_vk_buffer_create_lifetime(RendRenderer renderer, size_t size, RendBufferType type, bool gpu, int lifetime); +extern void rend_vk_buffer_destroy(RendBuffer *buffer); +extern void rend_vk_buffer_copy(RendRenderer renderer, RendBuffer *dest, size_t dest_offset, RendBuffer *src, size_t src_offset, size_t bytes); + +extern RendTexture rend_vk_texture_create(RendRenderer renderer, uint32_t width, uint32_t height, uint32_t depth, uint32_t mip_levels, uint32_t layers, RendFormat format); +extern void rend_vk_texture_destroy(RendRenderer renderer, RendTexture *tex); +extern void rend_vk_texture_transition_layout(RendRenderer renderer, VkCommandBuffer cmd, RendTexture *texture, VkImageLayout new_layout); +extern void rend_vk_texture_transfer_ownership_release(RendRenderer renderer, VkCommandBuffer cmd, RendTexture *texture, uint32_t src_family, uint32_t dst_family, VkImageLayout new_layout); +extern void rend_vk_texture_transfer_ownership_acquire(RendRenderer renderer, VkCommandBuffer cmd, RendTexture *texture, uint32_t src_family, uint32_t dst_family, VkImageLayout new_layout); +extern void rend_vk_texture_copy_buffer(RendRenderer renderer, RendTexture *texture, RendBuffer *buffer); +extern void rend_vk_texture_blit(RendRenderer renderer, RendTexture *src, RendTexture *dst, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h); + +static VkCommandBuffer rend_vk_cmdbuffer_single_use_begin(VkCommandPool pool); +static void rend_vk_cmdbuffer_single_use_end(VkCommandPool pool, VkCommandBuffer cmd, VkQueue q); + +extern bool rend_vk_pipeline_create(RendRenderer renderer, RendPipeline pipeline, Rend__PipelineConfig config, uint8_t type, const uint8_t *shader1, size_t bytes1, const uint8_t *shader2, size_t bytes2, const uint8_t *shader3, size_t bytes3); +extern void rend_vk_pipeline_bind(RendPipeline); +extern void rend_vk_pipeline_push_constants(RendPipeline pipeline, void *push_data, size_t size); + +extern void rend_vk_pipeline_bind_vertex_buffer(RendPipeline pipeline, uint32_t binding, RendBuffer buffer, size_t offset); +extern void rend_vk_pipeline_bind_index_buffer(RendPipeline pipeline, RendBuffer buffer, size_t offset, RendIndexType index_type); + +extern void rend_vk_pipeline_dispatch(RendPipeline pipeline, uint32_t x, uint32_t y, uint32_t z); +extern void rend_vk_pipeline_draw(RendPipeline, size_t count, uint32_t instance_count); +extern void rend_vk_pipeline_draw_indexed(RendPipeline pipeline, uint32_t index_count, uint32_t first_index, int32_t vertex_offset, uint32_t instance_count); +extern void rend_vk_pipeline_set_blend(RendPipeline, bool); + +VKAPI_ATTR VkBool32 VKAPI_CALL rend_vk_debug_func( VkDebugUtilsMessageSeverityFlagBitsEXT message_severity, VkDebugUtilsMessageTypeFlagsEXT message_types, const VkDebugUtilsMessengerCallbackDataEXT *callback_data, void *user_data); +static void rend_vk_pipeline_destroy(RendVkPipeline *pipeline); +static void rend_vk_swapchain_create(RendVk14Context *ctx, RendVkSwapchain *swapchain); +static void rend_vk_swapchain_destroy(RendVk14Context *ctx, RendVkSwapchain *swapchain); + +static VkShaderModule rend_vk_shader_module_create(const void *data, size_t size); +static uint32_t rend_vk_get_heap_index(uint32_t memory_type_bits, uint32_t preferred_index); + + +extern bool +rend_vk_init() +{ + RASSERT(sizeof(void*) == 8 && sizeof(int64_t) == 8 && sizeof(double) == 8, "SPEC: Host device 64-bit integer and floating-point types."); + + /* trying to init another renderer with the same backend */ + if (vk_instance) { + return true; + } + + /* create instance if does not exist */ + VkApplicationInfo vk_app_info = {VK_STRUCTURE_TYPE_APPLICATION_INFO}; + vk_app_info.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO; + vk_app_info.pApplicationName = "REND"; + vk_app_info.applicationVersion = VK_MAKE_VERSION(REND_MAJOR, REND_MINOR, REND_PATCH); + vk_app_info.apiVersion = VK_API_VERSION_1_4; + vk_app_info.pEngineName = "REND Renderer"; + vk_app_info.engineVersion = VK_MAKE_VERSION(REND_MAJOR, REND_MINOR, REND_PATCH); + + const char **extensions_darray = (const char **)p_vulkan_get_extensions(); + p_darray_push(extensions_darray, VK_KHR_SURFACE_EXTENSION_NAME); + +#ifdef REND_DEBUG + p_darray_push(extensions_darray, VK_EXT_DEBUG_UTILS_EXTENSION_NAME); + // p_darray_push(extensions_darray, VK_NV_DEVICE_DIAGNOSTIC_CHECKPOINTS_EXTENSION_NAME); + PDEBUG("Vulkan Extensions: "); + for (int i = 0; i < p_darray_len(extensions_darray); i++) + PDEBUG("%s", extensions_darray[i]); +#endif + + const char **required_validation_layers = NULL; + +#ifdef REND_DEBUG + p_darray_push(required_validation_layers, "VK_LAYER_KHRONOS_validation"); + + PDEBUG("Required Validation Layers: "); + for (uint32_t i = 0; i < p_darray_len(required_validation_layers); i++) { + PDEBUG(" - %s", required_validation_layers[i]); + } + + VkValidationFeatureEnableEXT enabled_validation_features[] = { + // VK_VALIDATION_FEATURE_ENABLE_GPU_ASSISTED_EXT, + // VK_VALIDATION_FEATURE_ENABLE_GPU_ASSISTED_RESERVE_BINDING_SLOT_EXT, + }; + + VkValidationFeaturesEXT validation_features = { + .sType = VK_STRUCTURE_TYPE_VALIDATION_FEATURES_EXT, + .pNext = NULL, + // .enabledValidationFeatureCount = sizeof(enabled_validation_features) / sizeof(enabled_validation_features[0]), + // .pEnabledValidationFeatures = enabled_validation_features, + }; +#endif + + VkInstanceCreateInfo vk_create_info = { VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO}; + vk_create_info.pApplicationInfo = &vk_app_info; + vk_create_info.ppEnabledExtensionNames = extensions_darray; + vk_create_info.enabledExtensionCount = p_darray_len(extensions_darray); + vk_create_info.pApplicationInfo = &vk_app_info; +#ifdef REND_DEBUG + vk_create_info.enabledLayerCount = p_darray_len(required_validation_layers); + vk_create_info.ppEnabledLayerNames = required_validation_layers; + vk_create_info.pNext = &validation_features; +#else + vk_create_info.enabledLayerCount = 0; + vk_create_info.ppEnabledLayerNames = NULL; +#endif + + VkResult res = vkCreateInstance(&vk_create_info, vk_allocator, &vk_instance); + CHECK_VK_RESULT(res); + + PDEBUG("Vulkan instance created!"); + p_darray_destroy(extensions_darray); +#ifdef REND_DEBUG + p_darray_destroy(required_validation_layers); +#endif + +#ifdef REND_DEBUG + uint32_t log_severity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT; + VkDebugUtilsMessengerCreateInfoEXT debug_create_info = { VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT}; + debug_create_info.messageSeverity = log_severity; + debug_create_info.messageType = + VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT; + debug_create_info.pfnUserCallback = rend_vk_debug_func; + + PFN_vkCreateDebugUtilsMessengerEXT func = (PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr( vk_instance, "vkCreateDebugUtilsMessengerEXT"); + if (!func) { + PDEBUG("Failed to create vulkan debug messenger!"); + return false; + } + func(vk_instance, &debug_create_info, vk_allocator, &vk_debug_messenger); +#endif + return true; +} + +extern void +rend_vk_quit() +{ + PDEBUG("[REND_VK14] Destroying device."); + + /* we destroy the device on quit */ + if (vk_device.logical_device != 0) { + rend_vk_device_destroy(&vk_device); + } + + if (vk_debug_messenger) { + PFN_vkDestroyDebugUtilsMessengerEXT func = (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr( vk_instance, "vkDestroyDebugUtilsMessengerEXT"); + func(vk_instance, vk_debug_messenger, vk_allocator); + vk_debug_messenger = 0; + } + + vkDestroyInstance(vk_instance, vk_allocator); + vk_instance = 0; +} + +extern RendContextHandle +rend_vk_renderer_create(P_Window *window) +{ + RendVk14Context *ctx = rmalloc(sizeof(*ctx)); + if (!ctx) { + PERROR("Failed to allocate internal vulkan context."); + return NULL; + } + + memset(ctx, 0, sizeof *ctx); + + /* get surface from window */ + if (!p_vulkan_create_surface(window, vk_instance, vk_allocator, &ctx->surface)) { + PERROR("Failed to create vulkan surface!"); + rfree(ctx); + return NULL; + } + + RendSpecs specs = { + .sampler_anisotropy = true, + .graphics = true, + .transfer = true, + .discrete_gpu = false, // even though its not a requirement, I expect discrete gpu to be picked + }; + + /* we lazily create the logical device only after creating the first renderer + * because we need the surface first */ + if (vk_device.logical_device == 0) { + rend_vk_device_create(ctx->surface, specs, &vk_device, rend_vk_device_score_default); + } + + /* we must create arena before swapchain */ + ctx->arena_persistent = rend_vk_arena_create( + vk_device.logical_device, + vk_device.physical_device, + vk_device.properties.limits, + vk_allocator); + + ctx->arena_frame = rend_vk_arena_create( + vk_device.logical_device, + vk_device.physical_device, + vk_device.properties.limits, + vk_allocator); + + /* create swapchain */ + rend_vk_swapchain_create(ctx, &ctx->swapchain); + + /* timeline semaphore */ + VkSemaphoreTypeCreateInfo timeline_type_info = {VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO}; + timeline_type_info.semaphoreType = VK_SEMAPHORE_TYPE_TIMELINE; + timeline_type_info.initialValue = ctx->max_frames_in_flight; + + VkSemaphoreCreateInfo timeline_semaphore_info = {VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO}; + timeline_semaphore_info.pNext = &timeline_type_info; + + if (vkCreateSemaphore(vk_device.logical_device, &timeline_semaphore_info, vk_allocator, &ctx->timeline_semaphore) != VK_SUCCESS) { + PERROR("Unable to create the timeline semaphore for the renderer!"); + rfree(ctx); + return NULL; + } + + /* create per frame semaphores */ + VkSemaphoreCreateInfo frame_semaphore_info = {VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO}; + for (uint32_t u = 0; u < REND_MAX_FRAMES_IN_FLIGHT; ++u) { + if (vkCreateSemaphore( + vk_device.logical_device, + &frame_semaphore_info, + vk_allocator, + &ctx->frame_resources[u].image_acquired_semaphore) != VK_SUCCESS) { + PERROR("Unable to create semaphore for frame #%u!", u); + rfree(ctx); + return NULL; + } + + if (vkCreateSemaphore( + vk_device.logical_device, + &frame_semaphore_info, + vk_allocator, + &ctx->render_complete_semaphores[u]) != VK_SUCCESS) { + PERROR("Unable to create render complete semaphore #%u!", u); + rfree(ctx); + return NULL; + } + + VkCommandPoolCreateInfo pool_info = {VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO}; + pool_info.queueFamilyIndex = vk_device.graphics_family_index; + if (vkCreateCommandPool(vk_device.logical_device, &pool_info, vk_allocator, &ctx->frame_resources[u].command_pool) != VK_SUCCESS) { + PERROR("Unable to create command pool for frame #%u!", u); + rfree(ctx); + return NULL; + } + + VkCommandBufferAllocateInfo cmdbuf_info = {VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO}; + cmdbuf_info.commandPool = ctx->frame_resources[u].command_pool; + cmdbuf_info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; + cmdbuf_info.commandBufferCount = 1; + if (vkAllocateCommandBuffers(vk_device.logical_device, &cmdbuf_info, &ctx->frame_resources[u].command_buffer) != VK_SUCCESS) { + PERROR("Unable to create command buffer for frame #%u!", u); + rfree(ctx); + return NULL; + } + + } + + VkCommandPoolCreateInfo pool_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, + .queueFamilyIndex = vk_device.transfer_family_index, + .flags = VK_COMMAND_POOL_CREATE_TRANSIENT_BIT + }; + + if (vkCreateCommandPool(vk_device.logical_device, &pool_info, vk_allocator, &ctx->upload_command_pool) != VK_SUCCESS) { + PERROR("Unable to create upload command pool!"); + rfree(ctx); + return NULL; + } + + pool_info.queueFamilyIndex = vk_device.graphics_family_index; + if (vkCreateCommandPool(vk_device.logical_device, &pool_info, vk_allocator, &ctx->graphics_command_pool) != VK_SUCCESS) { + PERROR("Unable to create graphics command pool!"); + rfree(ctx); + return NULL; + } + + ctx->frame = 0; + ctx->frame_index = 0; + ctx->next_signal_value = ctx->max_frames_in_flight + 1; /* start at frame zero */ + + /* + * Descriptor Pool + */ + { + RendBindingInfo bind_info = renderer->bind_info; + + uint32_t total_ubos = 0; + for (uint32_t i = 0; i < bind_info.ubo_binding_count; ++i) { + total_ubos += bind_info.ubo_array_sizes[i]; + } + + uint32_t total_ssbos = 0; + for (uint32_t i = 0; i < bind_info.ssbo_binding_count; ++i) { + total_ssbos += bind_info.ssbo_array_sizes[i]; + } + + uint32_t total_textures = 0; + for (uint32_t i = 0; i < bind_info.texture_binding_count; ++i) { + total_textures += bind_info.texture_array_sizes[i]; + } + + const uint32_t pool_count = 3; + VkDescriptorPoolSize pool_sizes[3] = { + { .type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, .descriptorCount = (total_ubos > 0) ? total_ubos : 1 }, + { .type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, .descriptorCount = (total_ssbos > 0) ? total_ssbos : 1 }, + { .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .descriptorCount = (total_textures > 0) ? total_textures : 1 } + }; + + VkDescriptorPoolCreateInfo pool_info = { + .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO, + .flags = 0, + .maxSets = 1, + .poolSizeCount = pool_count, + .pPoolSizes = pool_sizes, + .pNext = NULL, + }; + + VkResult result = vkCreateDescriptorPool(vk_device.logical_device, &pool_info, vk_allocator, &ctx->descriptor_pool); + if (result != VK_SUCCESS) { + rfree(ctx); + return NULL; + } + + + /* + * Descriptor Sets!!!!!! + */ + + const uint32_t binding_count = bind_info.ubo_binding_count + bind_info.ssbo_binding_count + bind_info.texture_binding_count; + VkDescriptorSetLayoutBinding binding_array[binding_count]; + + for (uint32_t i = 0; i < bind_info.ubo_binding_count; ++i) { + binding_array[i] = (VkDescriptorSetLayoutBinding) { + .binding = bind_info.ubo_bindings[i], + .descriptorCount = bind_info.ubo_array_sizes[i], + .descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, + .stageFlags = VK_SHADER_STAGE_ALL, + .pImmutableSamplers = 0, + }; + }; + + uint32_t offset = bind_info.ubo_binding_count; + for (uint32_t i = 0; i < bind_info.ssbo_binding_count; ++i) { + binding_array[i + offset] = (VkDescriptorSetLayoutBinding) { + .binding = bind_info.ssbo_bindings[i], + .descriptorCount = bind_info.ssbo_array_sizes[i], + .descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, + .stageFlags = VK_SHADER_STAGE_ALL, + .pImmutableSamplers = 0, + }; + }; + + offset += bind_info.ssbo_binding_count; + for (uint32_t i = 0; i < bind_info.texture_binding_count; ++i) { + binding_array[i + offset] = (VkDescriptorSetLayoutBinding) { + .binding = bind_info.texture_bindings[i], + .descriptorCount = bind_info.texture_array_sizes[i], + .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, + .stageFlags = VK_SHADER_STAGE_ALL, + .pImmutableSamplers = 0, + }; + }; + + VkDescriptorBindingFlags binding_flags[binding_count]; + for (uint32_t u = 0; u < binding_count; ++u) { + binding_flags[u] = VK_DESCRIPTOR_BINDING_PARTIALLY_BOUND_BIT; + } + + VkDescriptorSetLayoutBindingFlagsCreateInfo desc_flags_info = { + .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_BINDING_FLAGS_CREATE_INFO, + .bindingCount = binding_count, + .pBindingFlags = binding_flags + }; + + VkDescriptorSetLayoutCreateInfo desc_layout_info = { + .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO, + .flags = 0, + .bindingCount = binding_count, + .pBindings = binding_array, + .pNext = &desc_flags_info, + }; + + result = vkCreateDescriptorSetLayout(vk_device.logical_device, &desc_layout_info, vk_allocator, &ctx->desc_layout); + if (result != VK_SUCCESS) { + PERROR("Failed to create descriptor set layout!"); + rfree(ctx); + return NULL; + } + + VkDescriptorSetAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO, + .descriptorPool = ctx->descriptor_pool, + .descriptorSetCount = 1, // ONLY ONE DESCRIPTOR SET + .pSetLayouts = &ctx->desc_layout, + .pNext = NULL, + }; + + result = vkAllocateDescriptorSets(vk_device.logical_device, &alloc_info, &ctx->desc_set); + if (result != VK_SUCCESS) { + PERROR("Failed to allocate descriptors!!!"); + rfree(ctx); + return NULL; + } + } + + return ctx; +} + +extern void +rend_vk_renderer_destroy(RendContextHandle handle) +{ + RASSERT(handle, "Invalid context handle."); + + RendVk14Context *ctx = (RendVk14Context *)handle; + + VkDevice dev = vk_device.logical_device; + + PDEBUG("[REND] Waiting for device..."); + vkDeviceWaitIdle(dev); + + PDEBUG("[REND] Destroying renderer..."); + vkDestroySemaphore(dev, ctx->timeline_semaphore, vk_allocator); + + /* destroy per frame semaphores */ + for (uint32_t u = 0; u < REND_MAX_FRAMES_IN_FLIGHT; ++u) { + vkDestroySemaphore(dev, ctx->frame_resources[u].image_acquired_semaphore, vk_allocator); + vkDestroySemaphore(dev, ctx->render_complete_semaphores[u], vk_allocator); + vkDestroyCommandPool(dev, ctx->frame_resources[u].command_pool, vk_allocator); + ctx->frame_resources[u].image_acquired_semaphore = 0; + ctx->frame_resources[u].command_pool = 0; + ctx->frame_resources[u].command_buffer = 0; + } + + vkDestroyCommandPool(vk_device.logical_device, ctx->upload_command_pool, vk_allocator); + vkDestroyCommandPool(vk_device.logical_device, ctx->graphics_command_pool, vk_allocator); + + rend_vk_arena_destroy(&ctx->arena_persistent); + rend_vk_arena_destroy(&ctx->arena_frame); + + + vkDestroyDescriptorSetLayout(dev, ctx->desc_layout, vk_allocator); + vkDestroyDescriptorPool(dev, ctx->descriptor_pool, vk_allocator); + + PDEBUG("[REND] Destroying pipelines..."); + for (uint32_t u = 0; u < ctx->pipeline_count; ++u) { + rend_vk_pipeline_destroy(&ctx->pipelines[u]); + } + + PDEBUG("[REND] Destroying swapchain..."); + rend_vk_swapchain_destroy(ctx, &ctx->swapchain); + ctx->swapchain.handle = 0; + + PDEBUG("[REND] Destroying surface..."); + RASSERT(vk_instance); + vkDestroySurfaceKHR(vk_instance, ctx->surface, vk_allocator); + ctx->surface = 0; + + /* handle is guarranteed to be allocated */ + rfree(handle); +} + +extern bool +rend_vk_renderer_frame_begin(RendContextHandle handle) +{ + RASSERT(handle, "Invalid handle."); + + RendVk14Context *ctx = (RendVk14Context *) handle; + + /* check if swapchain needs recreation */ + if (ctx->require_swapchain_recreation) { + PDEBUG("[REND] Awaiting device..."); + vkDeviceWaitIdle(vk_device.logical_device); + PDEBUG("[REND] Recreating swapchain..."); + rend_vk_swapchain_destroy(ctx, &ctx->swapchain); + rend_vk_swapchain_create(ctx, &ctx->swapchain); + ctx->require_swapchain_recreation = false; + } + + VkDevice dev = vk_device.logical_device; + + /* wait on timeline semaphore */ + const uint64_t frame_res_index = ctx->frame % ctx->max_frames_in_flight; + ctx->frame_index = frame_res_index; + + const uint64_t signal_value = ctx->next_signal_value++; + const uint64_t wait_value = signal_value - ctx->max_frames_in_flight; + ctx->signal_value = signal_value; + + VkSemaphoreWaitInfo timeline_wait_info = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_WAIT_INFO, + .semaphoreCount = 1, + .pSemaphores = &ctx->timeline_semaphore, + .pValues = &wait_value + }; + + vkWaitSemaphores(vk_device.logical_device, &timeline_wait_info, UINT64_MAX); + + RendVkFrameResources frame_resource = ctx->frame_resources[frame_res_index]; + vkResetCommandPool(dev, frame_resource.command_pool, 0); + + /* acquire next image */ + VkResult acquire_image = vkAcquireNextImageKHR( + vk_device.logical_device, + ctx->swapchain.handle, + UINT64_MAX, + frame_resource.image_acquired_semaphore, + VK_NULL_HANDLE, + &ctx->image_index); + + if (acquire_image == VK_ERROR_OUT_OF_DATE_KHR) { + /* out of date images, may need recreating */ + ctx->require_swapchain_recreation = true; + ctx->frame++; + return false; + } else if (acquire_image == VK_SUBOPTIMAL_KHR) { + /* requires recreation but CAN CONTINUE RENDERING */ + ctx->require_swapchain_recreation = true; + } + + VkCommandBufferBeginInfo cmd_begin_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, + .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT + }; + + vkBeginCommandBuffer(frame_resource.command_buffer, &cmd_begin_info); + + static const size_t NUM_LAYOUT_BARRIERS = 2; + VkImageMemoryBarrier2 layout_barriers[NUM_LAYOUT_BARRIERS]; + layout_barriers[0] = (VkImageMemoryBarrier2) { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + + .srcStageMask = VK_PIPELINE_STAGE_2_COLOR_ATTACHMENT_OUTPUT_BIT, + .srcAccessMask = 0, + + .dstStageMask = VK_PIPELINE_STAGE_2_COLOR_ATTACHMENT_OUTPUT_BIT, + .dstAccessMask = VK_ACCESS_2_COLOR_ATTACHMENT_READ_BIT_KHR, + + .oldLayout = VK_IMAGE_LAYOUT_UNDEFINED, + .newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, + + .image = ctx->swapchain.images[ctx->image_index], + + .subresourceRange = (VkImageSubresourceRange) { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = 1, + .baseArrayLayer = 0, + .layerCount = 1 + }, + + // .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + // .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + }; + layout_barriers[1] = (VkImageMemoryBarrier2) { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + + .srcStageMask = VK_PIPELINE_STAGE_2_EARLY_FRAGMENT_TESTS_BIT, + .srcAccessMask = 0, + + .dstStageMask = VK_PIPELINE_STAGE_2_EARLY_FRAGMENT_TESTS_BIT | VK_PIPELINE_STAGE_2_LATE_FRAGMENT_TESTS_BIT, + .dstAccessMask = VK_ACCESS_2_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT, + + .oldLayout = VK_IMAGE_LAYOUT_UNDEFINED, + .newLayout = VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL, + + .image = ctx->swapchain.depth_attachment.handle, + + .subresourceRange = (VkImageSubresourceRange) { + .aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT, + .baseMipLevel = 0, + .levelCount = 1, + .baseArrayLayer = 0, + .layerCount = 1 + }, + }; + + VkMemoryBarrier2 memory_barrier = { + .sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER_2, + .srcStageMask = VK_PIPELINE_STAGE_2_HOST_BIT, + .srcAccessMask = VK_ACCESS_2_HOST_WRITE_BIT, + .dstStageMask = VK_PIPELINE_STAGE_2_VERTEX_SHADER_BIT, + .dstAccessMask = VK_ACCESS_2_SHADER_READ_BIT, + }; + + VkDependencyInfo dep_info = {VK_STRUCTURE_TYPE_DEPENDENCY_INFO}; + dep_info.memoryBarrierCount = 1; + dep_info.pMemoryBarriers = &memory_barrier; + dep_info.imageMemoryBarrierCount = (uint32_t) NUM_LAYOUT_BARRIERS; + dep_info.pImageMemoryBarriers = layout_barriers; + + vkCmdPipelineBarrier2(frame_resource.command_buffer, &dep_info); + + ctx->in_frame = true; + return true; +} + +extern void +rend_vk_renderer_frame_end(RendRenderer renderer, float *delta) +{ + + RASSERT(renderer && (uintptr_t)renderer != 0xffffffff00000000 && "Invalid renderer. (Possible stack corruption.)"); + RASSERT(renderer->context, "Uninitialized renderer."); + RASSERT(renderer->in_frame, "Must be called inside a frame."); + RASSERT(!renderer->in_pass, "Must not be called inside a render pass."); + + RendVk14Context *ctx = (RendVk14Context *)renderer->context; + + RendVkFrameResources res = ctx->frame_resources[ctx->frame_index]; + + VkImageMemoryBarrier2 present_barrier; + present_barrier = (VkImageMemoryBarrier2) { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + + .srcStageMask = VK_PIPELINE_STAGE_2_COLOR_ATTACHMENT_OUTPUT_BIT, + .srcAccessMask = VK_ACCESS_2_COLOR_ATTACHMENT_WRITE_BIT, + + .dstStageMask = VK_PIPELINE_STAGE_2_NONE, + .dstAccessMask = 0, + + .oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, + .newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, + + .image = ctx->swapchain.images[ctx->image_index], + + .subresourceRange = (VkImageSubresourceRange) { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = 1, + .baseArrayLayer = 0, + .layerCount = 1 + } + + }; + + VkDependencyInfo dep_info = {VK_STRUCTURE_TYPE_DEPENDENCY_INFO}; + dep_info.imageMemoryBarrierCount = 1; + dep_info.pImageMemoryBarriers = &present_barrier; + + vkCmdPipelineBarrier2(res.command_buffer, &dep_info); + vkEndCommandBuffer(res.command_buffer); + + /* ensure swapchain image is available */ + VkSemaphoreSubmitInfo image_acquire_await_info = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO, + .semaphore = res.image_acquired_semaphore, + .stageMask = VK_PIPELINE_STAGE_2_COLOR_ATTACHMENT_OUTPUT_BIT + }; + + /* signal that the image is presented */ + VkSemaphoreSubmitInfo semaphore_signals[2] = { + [0] = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO, + .semaphore = ctx->render_complete_semaphores[ctx->image_index], + .stageMask = VK_PIPELINE_STAGE_2_ALL_GRAPHICS_BIT + }, + [1] = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO, + .semaphore = ctx->timeline_semaphore, + .value = ctx->signal_value, + .stageMask = VK_PIPELINE_STAGE_2_ALL_GRAPHICS_BIT + }, + }; + + VkCommandBufferSubmitInfo cmd_submit_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_SUBMIT_INFO, + .commandBuffer = res.command_buffer, + }; + + VkSubmitInfo2 submit_info = { + .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO_2, + .waitSemaphoreInfoCount = 1, + .pWaitSemaphoreInfos = &image_acquire_await_info, + .commandBufferInfoCount = 1, + .pCommandBufferInfos = &cmd_submit_info, + .signalSemaphoreInfoCount = 2, + .pSignalSemaphoreInfos = semaphore_signals + }; + + vkQueueSubmit2(vk_device.graphics_queue, 1, &submit_info, VK_NULL_HANDLE); + + VkPresentInfoKHR present_info = { + .sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR, + .waitSemaphoreCount = 1, + .pWaitSemaphores = &ctx->render_complete_semaphores[ctx->image_index], + .swapchainCount = 1, + .pSwapchains = &ctx->swapchain.handle, + .pImageIndices = &ctx->image_index, + .pResults = NULL, + }; + + vkQueuePresentKHR(vk_device.graphics_queue, &present_info); + + ctx->frame++; + ctx->in_frame = false; + uint64_t f = ctx->frame_index; + + /* clear host mapped memory */ + rend_vk_arena_clear_all(&ctx->arena_frame); + rend_vk_arena_clear(&ctx->arena_persistent, vk_device.host_index); +} + +static inline void +rend_vk__renderer_render_pass_begin_internal(RendRenderer renderer, float r, float g, float b, float a, uint64_t view_handle, uint64_t depth_attachment_view_handle, uint32_t offset_x, uint32_t offset_y, uint32_t width, uint32_t height) +{ + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + RASSERT(ctx->in_frame && "must begin render pass inside a frame"); + + RendVkFrameResources frame_resource = ctx->frame_resources[ctx->frame_index]; + + VkRenderingAttachmentInfo color_attachment = { + .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO, + .imageView = (VkImageView) view_handle, + .imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, + .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR, // clear image + .storeOp = VK_ATTACHMENT_STORE_OP_STORE, // store for presentation + .clearValue = (VkClearValue) { + .color = {r, g, b, a}, + } + }; + + VkRenderingAttachmentInfo depth_attachment = { + .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO, + .imageView = (VkImageView) depth_attachment_view_handle, + .imageLayout = VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL, + .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR, // clear depth data + .storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE, // don't care after rendering + .clearValue = (VkClearValue) { + .depthStencil = (VkClearDepthStencilValue) {1.0f, 0}, + }, + }; + + VkRenderingInfo rendering_info = { + .sType = VK_STRUCTURE_TYPE_RENDERING_INFO, + .renderArea.offset = (VkOffset2D) {offset_x, offset_y}, + .renderArea.extent = (VkExtent2D) {width, height}, + .layerCount = 1, + .colorAttachmentCount = 1, + .pColorAttachments = &color_attachment, + .pDepthAttachment = &depth_attachment, + }; + + vkCmdBeginRendering(frame_resource.command_buffer, &rendering_info); + + VkViewport viewport = { + .x = offset_x, + .y = offset_y, + .width = width, + .height = height, + .minDepth = 0.0f, + .maxDepth = 1.0f + }; + + vkCmdSetViewport(frame_resource.command_buffer, 0, 1, &viewport); + + VkRect2D scissor = {{offset_x, offset_y}, {width, height}}; + vkCmdSetScissor(frame_resource.command_buffer, 0, 1, &scissor); +} + + +extern void +rend_vk_renderer_render_pass_begin(RendRenderer renderer, float r, float g, float b, float a) +{ + + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + + rend_vk__renderer_render_pass_begin_internal( + renderer, + r, g, b, a, + (uint64_t) ctx->swapchain.views[ctx->image_index], + (uint64_t) ctx->swapchain.depth_attachment.view, + 0, 0, + ctx->swapchain.extent.width, ctx->swapchain.extent.height + ); +} + +extern void +rend_vk_renderer_render_pass_begin_texture(RendRenderer renderer, RendTexture *texture) +{ + + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + + RendVkFrameResources frame_resource = ctx->frame_resources[ctx->frame_index]; + + rend_vk_texture_transition_layout(renderer, ctx->frame_resources[ctx->frame_index].command_buffer, texture, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL); + + VkRenderingAttachmentInfo color_attachment = { + .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO, + .imageView = (VkImageView) texture->view, + .imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, + .loadOp = VK_ATTACHMENT_LOAD_OP_LOAD, // load image instead of clearing + .storeOp = VK_ATTACHMENT_STORE_OP_STORE, // store for presentation + }; + + VkRenderingAttachmentInfo depth_attachment = { + .sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO, + .imageView = (VkImageView) ctx->swapchain.depth_attachment.view, + .imageLayout = VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL, + .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR, // clear depth data + .storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE, // don't care after rendering + .clearValue = (VkClearValue) { + .depthStencil = (VkClearDepthStencilValue) {1.0f, 0}, + }, + }; + + VkRenderingInfo rendering_info = { + .sType = VK_STRUCTURE_TYPE_RENDERING_INFO, + .renderArea.offset = (VkOffset2D) {0, 0}, + .renderArea.extent = (VkExtent2D) {texture->width, texture->height}, + .layerCount = 1, + .colorAttachmentCount = 1, + .pColorAttachments = &color_attachment, + .pDepthAttachment = &depth_attachment, + }; + + vkCmdBeginRendering(frame_resource.command_buffer, &rendering_info); + + VkViewport viewport = { + .x = 0, + .y = 0, + .width = texture->width, + .height = texture->height, + .minDepth = 0.0f, + .maxDepth = 1.0f + }; + + vkCmdSetViewport(frame_resource.command_buffer, 0, 1, &viewport); + + VkRect2D scissor = {{0, 0}, {texture->width, texture->height}}; + vkCmdSetScissor(frame_resource.command_buffer, 0, 1, &scissor); +} + +extern void +rend_vk_renderer_render_pass_end_texture(RendRenderer renderer, RendTexture *texture) +{ + + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + rend_vk_texture_transition_layout(renderer, ctx->frame_resources[ctx->frame_index].command_buffer, texture, VK_IMAGE_LAYOUT_READ_ONLY_OPTIMAL); + rend_vk_renderer_render_pass_end(renderer); +} + + +extern void +rend_vk_renderer_render_pass_end(RendRenderer renderer) +{ + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + RASSERT(ctx->in_frame && "must end render pass inside a frame"); + RendVkFrameResources res = ctx->frame_resources[ctx->frame_index]; + vkCmdEndRendering(res.command_buffer); +} + +extern void +rend_vk_descriptor_write_buffer(RendRenderer renderer, RendBuffer ubo, uint32_t binding, uint32_t slot, uint32_t offset, uint32_t size, bool is_ubo) +{ + RendVk14Context *ctx = renderer->context; + + VkDescriptorBufferInfo buffer_info = { + .buffer = (VkBuffer) ubo.handle, + .offset = offset, + .range = size, + }; + + VkWriteDescriptorSet descriptor_write = { + .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, + .dstSet = ctx->desc_set, + .dstBinding = binding, + .dstArrayElement = slot, // write texture to slot + .descriptorCount = 1, + .descriptorType = (is_ubo) ? VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER : VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, + .pBufferInfo = &buffer_info, + }; + + vkUpdateDescriptorSets(vk_device.logical_device, 1, &descriptor_write, 0, NULL); +} + + +extern RendBuffer +rend_vk_buffer_create_lifetime(RendRenderer renderer, size_t size, RendBufferType type, bool gpu, int lifetime) +{ + RendVk14Context *ctx = (RendVk14Context *)renderer->context; + int32_t index = (gpu) ? vk_device.device_index : vk_device.host_index; + + VkBufferUsageFlags vk_usage = 0; + switch (type) { + case REND_BUFFER_VERTEX: + vk_usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + break; + case REND_BUFFER_INDEX: + vk_usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + break; + case REND_BUFFER_UNIFORM: + vk_usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + break; + case REND_BUFFER_STORAGE: + vk_usage = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT; + break; + case REND_BUFFER_TRANSFER: + vk_usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + break; + default: + REND__CRASH("Invalid buffer type!"); + break; + } + + RendBuffer buffer = {0}; + buffer.usage = vk_usage | VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT; + + bool is_concurrent = (gpu && (vk_device.graphics_family_index != vk_device.transfer_family_index)); + int32_t family[] = { vk_device.graphics_family_index, vk_device.transfer_family_index }; + + VkBufferCreateInfo buffer_info = { + .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO, + .size = size, + .usage = buffer.usage, + .sharingMode = is_concurrent ? VK_SHARING_MODE_CONCURRENT : VK_SHARING_MODE_EXCLUSIVE, + .queueFamilyIndexCount = is_concurrent ? 2 : 1, + .pQueueFamilyIndices = is_concurrent ? family : NULL, + }; + + if (vkCreateBuffer(vk_device.logical_device, &buffer_info, vk_allocator, (VkBuffer*) &buffer.handle) != VK_SUCCESS) { + REND__CRASH("Failed to create VkBuffer!"); + } + + VkMemoryRequirements mem_reqs; + vkGetBufferMemoryRequirements(vk_device.logical_device, (VkBuffer) buffer.handle, &mem_reqs); + + RASSERT((mem_reqs.memoryTypeBits & (1u << index)) && "Buffer incompatible with chosen memory type!"); + + RendVkArenaAllocator *arena = (lifetime == REND_LIFETIME_FRAME) ? &ctx->arena_frame : &ctx->arena_persistent; + RendMemory vk_memory = rend_vk_arena_alloc(arena, mem_reqs.size, index); + + if (vkBindBufferMemory(vk_device.logical_device, (VkBuffer) buffer.handle, (VkDeviceMemory) vk_memory.device_memory, vk_memory.offset) != VK_SUCCESS) { + REND__CRASH("Failed to bind VkBuffer memory!"); + } + + buffer.memory = vk_memory; + + VkBufferDeviceAddressInfo address_info = { + .sType = VK_STRUCTURE_TYPE_BUFFER_DEVICE_ADDRESS_INFO, + .buffer = (VkBuffer) buffer.handle, + }; + + if (!gpu && vk_memory.host_mapped_memory) { + buffer.mapped_memory = vk_memory.host_mapped_memory; + } else { + buffer.mapped_memory = NULL; + } + + buffer.gpu_address = vkGetBufferDeviceAddress(vk_device.logical_device, &address_info); + buffer.size = size; + return buffer; +} + +extern void +rend_vk_buffer_destroy(RendBuffer *buffer) +{ + // NOTE: this function is meant to be called by the user + // when freeing his buffers mid frame, there may be a better + // way using fences perhaps? or by checking the timeline semaphore? + vkDeviceWaitIdle(vk_device.logical_device); + vkDestroyBuffer(vk_device.logical_device, (VkBuffer) buffer->handle, vk_allocator); + memset(buffer, 0xC0FFEE, sizeof *buffer); // fill buffer with coffee +} + +extern void +rend_vk_buffer_copy(RendRenderer renderer, RendBuffer *dest, size_t dest_offset, RendBuffer *src, size_t src_offset, size_t bytes) +{ + RASSERT(src && dest); // check that im not sending null pointers + RASSERT(src->usage & VK_BUFFER_USAGE_TRANSFER_SRC_BIT); // source buffer must be marked as transfer src + RASSERT(dest->usage & VK_BUFFER_USAGE_TRANSFER_DST_BIT); // dest buffer must be marked as transfer dest + + RendVk14Context *ctx = (RendVk14Context *)renderer->context; + VkBuffer src_vk = (VkBuffer)(uintptr_t)src->handle; + VkBuffer dest_vk = (VkBuffer)(uintptr_t)dest->handle; + + VkCommandBuffer transfer_cmd = VK_NULL_HANDLE; + + VkCommandBufferAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, + .commandBufferCount = 1, + .commandPool = ctx->upload_command_pool, + .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY, + .pNext = NULL, + }; + + if (vkAllocateCommandBuffers(vk_device.logical_device, &alloc_info, &transfer_cmd) != VK_SUCCESS) { + REND__CRASH("Failed to allocate transfer command buffer!"); + } + + VkCommandBufferBeginInfo begin_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, + .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT, + }; + vkBeginCommandBuffer(transfer_cmd, &begin_info); + + VkBufferCopy buffer_copy = { + .srcOffset = (VkDeviceSize)src_offset, + .dstOffset = (VkDeviceSize)dest_offset, + .size = (VkDeviceSize)bytes, + }; + + vkCmdCopyBuffer(transfer_cmd, src_vk, dest_vk, 1, &buffer_copy); + vkEndCommandBuffer(transfer_cmd); + + VkCommandBufferSubmitInfo cmd_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_SUBMIT_INFO, + .commandBuffer = transfer_cmd, + .deviceMask = 0, + }; + + VkSubmitInfo2 submit_info = { + .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO_2, + .commandBufferInfoCount = 1, + .pCommandBufferInfos = &cmd_info, + }; + + vkQueueSubmit2(vk_device.transfer_queue, 1, &submit_info, VK_NULL_HANDLE); + + vkQueueWaitIdle(vk_device.transfer_queue); + vkFreeCommandBuffers(vk_device.logical_device, ctx->upload_command_pool, 1, &transfer_cmd); +} + + +extern RendTexture +rend_vk_texture_create(RendRenderer renderer, uint32_t width, uint32_t height, uint32_t depth, uint32_t mip_levels, uint32_t layers, RendFormat format) +{ + RASSERT(format < REND_FORMAT_COUNT && "Invalid format!"); + + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + VkFormat vk_format = vk_format_from_rend_format[format]; + + uint32_t safe_depth = (depth > 0) ? depth : 1; + uint32_t safe_mips = (mip_levels > 0) ? mip_levels : 1; + uint32_t safe_layers = (layers > 0) ? layers : 1; + + RendTexture tex = { + .handle = 0, + .width = width, + .height = height, + .depth = safe_depth, + .mip_levels = safe_mips, + .layers = safe_layers, + .format = vk_format, + .layout = VK_IMAGE_LAYOUT_UNDEFINED, + }; + + VkImageCreateInfo image_info = { + .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO, + .imageType = (safe_depth > 1) ? VK_IMAGE_TYPE_3D : VK_IMAGE_TYPE_2D, + .extent = { .width = width, .height = height, .depth = safe_depth }, + .mipLevels = tex.mip_levels, + .arrayLayers = tex.layers, + .format = vk_format, + .tiling = VK_IMAGE_TILING_OPTIMAL, + .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED, + .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT, + .sharingMode = VK_SHARING_MODE_EXCLUSIVE, + .samples = VK_SAMPLE_COUNT_1_BIT, + .flags = 0, + }; + + if (vkCreateImage(vk_device.logical_device, &image_info, vk_allocator, (VkImage*)&tex.handle) != VK_SUCCESS) { + REND__CRASH("failed to create image!"); + return tex; + } + + VkMemoryRequirements mem_requirements; + vkGetImageMemoryRequirements(vk_device.logical_device, (VkImage)tex.handle, &mem_requirements); + + uint32_t index = rend_vk_get_heap_index(mem_requirements.memoryTypeBits, vk_device.device_index); + tex.memory = rend_vk_arena_alloc(&ctx->arena_persistent, mem_requirements.size, index); + + vkBindImageMemory(vk_device.logical_device, (VkImage)tex.handle, (VkDeviceMemory)tex.memory.device_memory, (VkDeviceSize)tex.memory.offset); + + // Correct ImageView creation using strict VkImageViewType and derived format + VkImageViewCreateInfo view_info = { + .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, + .image = (VkImage)tex.handle, + .viewType = (safe_depth > 1) ? VK_IMAGE_VIEW_TYPE_3D : VK_IMAGE_VIEW_TYPE_2D, + .format = vk_format, + .subresourceRange = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = tex.mip_levels, + .baseArrayLayer = 0, + .layerCount = tex.layers, + }, + }; + + if (vkCreateImageView(vk_device.logical_device, &view_info, vk_allocator, (VkImageView*)&tex.view) != VK_SUCCESS) { + REND__CRASH("failed to create image view!"); + return tex; + } + + /* per-texture sampler */ + VkSamplerCreateInfo sampler_info = { + .sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO, + .magFilter = VK_FILTER_LINEAR, // force sharp upscaling + .minFilter = VK_FILTER_LINEAR, // TODO: add filter setting to texture + .addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT, + .addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT, + .addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT, + + .mipmapMode = (tex.mip_levels > 1) ? VK_SAMPLER_MIPMAP_MODE_LINEAR : VK_SAMPLER_MIPMAP_MODE_NEAREST, + .minLod = 0.0f, + .maxLod = (tex.mip_levels > 1) ? (float)tex.mip_levels : 0.0f, + + .anisotropyEnable = (tex.mip_levels > 1 && vk_device.features.samplerAnisotropy) ? VK_TRUE : VK_FALSE, + .maxAnisotropy = 8.0f, + }; + + if (vkCreateSampler(vk_device.logical_device, &sampler_info, vk_allocator, (VkSampler*)&tex.sampler) != VK_SUCCESS) { + REND__CRASH("failed to create sampler!"); + } + + return tex; +} + +extern void +rend_vk_texture_destroy(RendRenderer renderer, RendTexture *tex) +{ + RASSERT(renderer && tex); + RendVk14Context *ctx = (RendVk14Context*)renderer->context; + + if (tex->handle) { + vkDestroyImage(vk_device.logical_device, (VkImage) tex->handle, vk_allocator); + tex->handle = 0; + } + + if (tex->view) { + vkDestroyImageView(vk_device.logical_device, (VkImageView) tex->view, vk_allocator); + tex->view = 0; + } + + if (tex->sampler) { + vkDestroySampler(vk_device.logical_device, (VkSampler)tex->sampler, vk_allocator); + tex->sampler = 0; + } + + // memset(tex, 0xBABE, sizeof *tex); +} + +extern void +rend_vk_texture_transition_layout(RendRenderer renderer, VkCommandBuffer cmd, RendTexture *texture, VkImageLayout new_layout) +{ + RendVk14Context *ctx = renderer->context; + VkCommandPool pool = ctx->upload_command_pool; + + VkImageMemoryBarrier2 barrier = { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .oldLayout = texture->layout, + .newLayout = new_layout, + + .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + + .image = (VkImage) texture->handle, + + .subresourceRange = (VkImageSubresourceRange) { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = texture->mip_levels, + .baseArrayLayer = 0, + .layerCount = texture->layers, + }, + + .srcAccessMask = 0, // TODO + .dstAccessMask = 0, // TODO + + }; + + if (texture->layout == VK_IMAGE_LAYOUT_UNDEFINED && new_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) { + barrier.srcAccessMask = 0; + barrier.dstAccessMask = VK_ACCESS_2_TRANSFER_WRITE_BIT; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_TOP_OF_PIPE_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT; + } else if (texture->layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL && new_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) { + barrier.srcAccessMask = VK_ACCESS_2_TRANSFER_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_2_SHADER_READ_BIT; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_FRAGMENT_SHADER_BIT | VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT; + } else { + barrier.srcAccessMask = VK_ACCESS_2_MEMORY_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_2_MEMORY_READ_BIT | VK_ACCESS_2_MEMORY_WRITE_BIT; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_ALL_COMMANDS_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_ALL_COMMANDS_BIT; + } + + VkDependencyInfo dep = { + .sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO, + .pImageMemoryBarriers = &barrier, + .imageMemoryBarrierCount = 1, + }; + + texture->layout = new_layout; + vkCmdPipelineBarrier2(cmd, &dep); +} + +extern void +rend_vk_texture_transfer_ownership_release(RendRenderer renderer, VkCommandBuffer cmd, RendTexture *texture, uint32_t src_family, uint32_t dst_family, VkImageLayout new_layout) +{ + RendVk14Context *ctx = renderer->context; + (void) ctx; // reserved in case you need it for stage/access lookups later + + VkImageMemoryBarrier2 barrier = { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .oldLayout = texture->layout, + .newLayout = new_layout, + .srcQueueFamilyIndex = src_family, + .dstQueueFamilyIndex = dst_family, + .image = (VkImage) texture->handle, + .subresourceRange = (VkImageSubresourceRange) { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = texture->mip_levels, + .baseArrayLayer = 0, + .layerCount = texture->layers, + }, + }; + + if (texture->layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL && new_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) { + barrier.srcAccessMask = VK_ACCESS_2_TRANSFER_WRITE_BIT; + barrier.dstAccessMask = 0; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_BOTTOM_OF_PIPE_BIT; + } else { + barrier.srcAccessMask = VK_ACCESS_2_MEMORY_WRITE_BIT; + barrier.dstAccessMask = 0; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_ALL_COMMANDS_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_BOTTOM_OF_PIPE_BIT; + } + + VkDependencyInfo dep = { + .sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO, + .pImageMemoryBarriers = &barrier, + .imageMemoryBarrierCount = 1, + }; + + texture->layout = new_layout; + vkCmdPipelineBarrier2(cmd, &dep); +} + +extern void +rend_vk_texture_transfer_ownership_acquire(RendRenderer renderer, VkCommandBuffer cmd, RendTexture *texture, uint32_t src_family, uint32_t dst_family, VkImageLayout new_layout) +{ + RendVk14Context *ctx = renderer->context; + (void) ctx; + + VkImageMemoryBarrier2 barrier = { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .oldLayout = texture->layout, + .newLayout = new_layout, + .srcQueueFamilyIndex = src_family, + .dstQueueFamilyIndex = dst_family, + .image = (VkImage) texture->handle, + + .subresourceRange = (VkImageSubresourceRange) { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = texture->mip_levels, + .baseArrayLayer = 0, + .layerCount = texture->layers, + }, + }; + + if (texture->layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL && new_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) { + barrier.srcAccessMask = 0; + barrier.dstAccessMask = VK_ACCESS_2_SHADER_READ_BIT; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_TOP_OF_PIPE_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_FRAGMENT_SHADER_BIT | VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT; + } else { + barrier.srcAccessMask = 0; + barrier.dstAccessMask = VK_ACCESS_2_MEMORY_READ_BIT | VK_ACCESS_2_MEMORY_WRITE_BIT; + barrier.srcStageMask = VK_PIPELINE_STAGE_2_TOP_OF_PIPE_BIT; + barrier.dstStageMask = VK_PIPELINE_STAGE_2_ALL_COMMANDS_BIT; + } + + VkDependencyInfo dep = { + .sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO, + .pImageMemoryBarriers = &barrier, + .imageMemoryBarrierCount = 1, + }; + + texture->layout = new_layout; + vkCmdPipelineBarrier2(cmd, &dep); +} + +extern void +rend_vk_texture_copy_buffer(RendRenderer renderer, RendTexture *texture, RendBuffer *buffer) +{ + RendVk14Context *ctx = renderer->context; + + VkCommandBuffer cmd_transfer = rend_vk_cmdbuffer_single_use_begin(ctx->upload_command_pool); { + rend_vk_texture_transition_layout(renderer, cmd_transfer, texture, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL); + VkBufferImageCopy region = { + .imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .imageSubresource.layerCount = texture->layers, + .imageExtent = (VkExtent3D) { texture->width, texture->height, texture->depth }, + }; + + vkCmdCopyBufferToImage(cmd_transfer, (VkBuffer) buffer->handle, (VkImage) texture->handle, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion); + rend_vk_texture_transfer_ownership_release(renderer, cmd_transfer, texture, vk_device.transfer_family_index, vk_device.graphics_family_index, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); + } rend_vk_cmdbuffer_single_use_end(ctx->upload_command_pool, cmd_transfer, vk_device.transfer_queue); + + VkCommandBuffer cmd_graphics = rend_vk_cmdbuffer_single_use_begin(ctx->graphics_command_pool); { + rend_vk_texture_transfer_ownership_acquire(renderer, cmd_graphics, texture, vk_device.transfer_family_index, vk_device.graphics_family_index, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); + } rend_vk_cmdbuffer_single_use_end(ctx->graphics_command_pool, cmd_graphics, vk_device.graphics_queue); +} + +extern void +rend_vk_texture_blit(RendRenderer renderer, RendTexture *src, RendTexture *dst, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h) +{ + + RendVk14Context *ctx = (RendVk14Context*) renderer->context; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + + rend_vk_texture_transition_layout(renderer, cmd, src, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL); + rend_vk_texture_transition_layout(renderer, cmd, dst, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL); + + VkImageBlit2 blit_region = { + .sType = VK_STRUCTURE_TYPE_IMAGE_BLIT_2, + .srcSubresource = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .mipLevel = 0, + .baseArrayLayer = 0, + .layerCount = 1, + }, + .srcOffsets = { + { src_x, src_y, 0 }, + { src_x + src_w, src_y + src_h, 1 } + }, + .dstSubresource = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .mipLevel = 0, + .baseArrayLayer = 0, + .layerCount = 1, + }, + .dstOffsets = { + { dst_x, dst_y, 0 }, + { dst_x + dst_w, dst_y + dst_h, 1 } + } + }; + + VkBlitImageInfo2 blit_info = { + .sType = VK_STRUCTURE_TYPE_BLIT_IMAGE_INFO_2, + .srcImage = (VkImage) src->handle, + .srcImageLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, + .dstImage = (VkImage) dst->handle, + .dstImageLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + .regionCount = 1, + .pRegions = &blit_region, + + .filter = VK_FILTER_NEAREST // crispy + }; + + vkCmdBlitImage2(cmd, &blit_info); +} + +static VkCommandBuffer +rend_vk_cmdbuffer_single_use_begin(VkCommandPool pool) +{ + VkCommandBufferAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, + .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY, + .commandPool = pool, + .commandBufferCount = 1, + }; + + VkCommandBuffer cmd; + vkAllocateCommandBuffers(vk_device.logical_device, &alloc_info, &cmd); + + VkCommandBufferBeginInfo begin = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, + .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT, + }; + + vkBeginCommandBuffer(cmd, &begin); + + return cmd; +} + +static void +rend_vk_cmdbuffer_single_use_end(VkCommandPool pool, VkCommandBuffer cmd, VkQueue q) +{ + vkEndCommandBuffer(cmd); + + VkSubmitInfo submit_info = { + .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO, + .commandBufferCount = 1, + .pCommandBuffers = &cmd, + }; + + vkQueueSubmit(q, 1, &submit_info, VK_NULL_HANDLE); + vkQueueWaitIdle(q); + + vkFreeCommandBuffers(vk_device.logical_device, pool, 1, &cmd); +} + +extern bool +rend_vk_pipeline_create(RendRenderer renderer, RendPipeline pipeline, Rend__PipelineConfig config, uint8_t type, const uint8_t *shader1, size_t bytes1, const uint8_t *shader2, size_t bytes2, const uint8_t *shader3, size_t bytes3) +{ + + RendVk14Context *ctx = (RendVk14Context *)renderer->context; + pipeline->idx = ctx->pipeline_count++; + pipeline->backend_ctx = ctx; // useful for when we only have RendPipeline as an argument + + RendVkPipeline *vk_pipeline = &ctx->pipelines[pipeline->idx]; + vk_pipeline->blend_enable = false; + + /* + * set color and depth format + */ + VkFormat color_format = (config.color_format != REND_FORMAT_UNDEFINED) + ? vk_format_from_rend_format[config.color_format] + : ctx->swapchain.format.format; + + VkFormat depth_format = (config.depth_format != REND_FORMAT_UNDEFINED) + ? vk_format_from_rend_format[config.depth_format] + : vk_device.depth_format; + + /* + * Pipeline Layout + */ + + vk_pipeline->push_constants_range = 0; + uint32_t total_size = 0; + for (uint32_t u = 0; u < config.push_constant_count; ++u) { + total_size += config.push_constants[u].size; + } + + vk_pipeline->push_constants_range = total_size; + + VkPushConstantRange pc_range = { + .offset = 0, + .size = total_size, + .stageFlags = VK_SHADER_STAGE_ALL, + }; + + VkPipelineLayoutCreateInfo layout_info = { + .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, + .pSetLayouts = &ctx->desc_layout, + .setLayoutCount = 1, + .pPushConstantRanges = (total_size > 0) ? &pc_range : NULL, + .pushConstantRangeCount = (total_size > 0) ? 1 : 0, + }; + + CHECK_VK_RESULT(vkCreatePipelineLayout(vk_device.logical_device, &layout_info, vk_allocator, &vk_pipeline->layout)); + + /* + * Setup shaders based on pipeline type + */ + VkPipelineShaderStageCreateInfo shader_stages[3] = {0}; + VkShaderModule shader_modules[3] = {0}; + uint32_t shader_count = 0; + + if (type == REND__PIPELINE_GRAPHICS) { + shader_count = 2; + shader_modules[0] = rend_vk_shader_module_create(shader1, bytes1); + shader_modules[1] = rend_vk_shader_module_create(shader2, bytes2); + + shader_stages[0] = (VkPipelineShaderStageCreateInfo) { + .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, + .stage = VK_SHADER_STAGE_VERTEX_BIT, + .module = shader_modules[0], + .pName = "main" + }; + + shader_stages[1] = (VkPipelineShaderStageCreateInfo) { + .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, + .stage = VK_SHADER_STAGE_FRAGMENT_BIT, + .module = shader_modules[1], + .pName = "main", + }; + + } else if (type == REND__PIPELINE_MESH) { + shader_count = 2; + shader_modules[0] = rend_vk_shader_module_create(shader1, bytes1); + shader_modules[1] = rend_vk_shader_module_create(shader2, bytes2); + + shader_stages[0] = (VkPipelineShaderStageCreateInfo) { + .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, + .stage = VK_SHADER_STAGE_MESH_BIT_EXT, + .module = shader_modules[0], + .pName = "main" + }; + + shader_stages[1] = (VkPipelineShaderStageCreateInfo) { + .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, + .stage = VK_SHADER_STAGE_FRAGMENT_BIT, + .module = shader_modules[1], + .pName = "main", + }; + + } else if (type == REND__PIPELINE_COMPUTE) { + shader_count = 1; + shader_modules[0] = rend_vk_shader_module_create(shader1, bytes1); + + shader_stages[0] = (VkPipelineShaderStageCreateInfo) { + .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, + .stage = VK_SHADER_STAGE_COMPUTE_BIT, + .module = shader_modules[0], + .pName = "main" + }; + } else { + REND__CRASH("Invalid pipeline type"); + } + + /* + * Compute Pipeline Branch + */ + if (type == REND__PIPELINE_COMPUTE) { + VkComputePipelineCreateInfo compute_pipeline_info = { + .sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO, + .stage = shader_stages[0], + .layout = vk_pipeline->layout, + .basePipelineHandle = VK_NULL_HANDLE, + .basePipelineIndex = -1, + }; + + CHECK_VK_RESULT(vkCreateComputePipelines(vk_device.logical_device, VK_NULL_HANDLE, 1, &compute_pipeline_info, vk_allocator, &vk_pipeline->handle)); + + PINFO("Successfully created compute pipeline!"); + } + /* + * Graphics / Mesh Pipeline Branch + */ + else { + VkPipelineRenderingCreateInfo rendering_info = {VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO}; + rendering_info.colorAttachmentCount = 1; + rendering_info.pColorAttachmentFormats = &color_format; + rendering_info.depthAttachmentFormat = depth_format; + + VkPipelineViewportStateCreateInfo viewport_state = {VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO}; + viewport_state.viewportCount = 1; + viewport_state.scissorCount = 1; + + VkPipelineRasterizationStateCreateInfo rasterizer = {VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO}; + rasterizer.depthClampEnable = VK_FALSE; + rasterizer.rasterizerDiscardEnable = VK_FALSE; + rasterizer.polygonMode = vk_polymode[config.polygon_mode]; + rasterizer.lineWidth = 1.0f; + rasterizer.cullMode = vk_cullflags[config.cull_mode]; + rasterizer.frontFace = VK_FRONT_FACE_CLOCKWISE; + rasterizer.depthBiasEnable = VK_FALSE; + + VkPipelineMultisampleStateCreateInfo multisampling = {VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO}; + multisampling.sampleShadingEnable = VK_FALSE; + multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT; + + VkPipelineColorBlendAttachmentState color_blend_attachment = {0}; + color_blend_attachment.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT; + color_blend_attachment.blendEnable = VK_FALSE; + + VkPipelineColorBlendStateCreateInfo color_blending = { VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO}; + color_blending.logicOpEnable = VK_FALSE; + color_blending.logicOp = VK_LOGIC_OP_COPY; + color_blending.attachmentCount = 1; + color_blending.pAttachments = &color_blend_attachment; + + VkPipelineDepthStencilStateCreateInfo depth_stencil = { VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO}; + depth_stencil.depthTestEnable = config.depth_test_enable; + depth_stencil.depthWriteEnable = VK_TRUE; + depth_stencil.depthCompareOp = VK_COMPARE_OP_LESS; + depth_stencil.depthBoundsTestEnable = VK_FALSE; + depth_stencil.stencilTestEnable = VK_FALSE; + + VkDynamicState dynamic_states[] = {VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR}; + VkPipelineDynamicStateCreateInfo dynamic_state = { VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO}; + dynamic_state.dynamicStateCount = 2; + dynamic_state.pDynamicStates = dynamic_states; + + VkPipelineVertexInputStateCreateInfo vertex_input_info = { VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO}; + VkPipelineInputAssemblyStateCreateInfo input_assembly = {VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO}; + VkVertexInputBindingDescription* vk_bindings = NULL; + VkVertexInputAttributeDescription* vk_attributes = NULL; + + if (type == REND__PIPELINE_GRAPHICS) { + uint32_t binding_count = config.vertex_binding_count; + uint32_t attribute_count = config.vertex_attribute_count; + + /* + * Bind Vertex Attributes + */ + if (binding_count > 0) { + vk_bindings = rmalloc(sizeof(VkVertexInputBindingDescription) * binding_count); + for (uint32_t i = 0; i < binding_count; i++) { + RendVertexBinding rb = config.vertex_bindings[i]; + vk_bindings[i].binding = rb.binding; + vk_bindings[i].stride = rb.stride; + vk_bindings[i].inputRate = (rb.input_rate == REND_INPUT_RATE_INSTANCE) ? VK_VERTEX_INPUT_RATE_INSTANCE : VK_VERTEX_INPUT_RATE_VERTEX; + } + } + + if (attribute_count > 0) { + vk_attributes = rmalloc(sizeof(VkVertexInputAttributeDescription) * attribute_count); + for (uint32_t i = 0; i < attribute_count; i++) { + RendVertexAttributes ra = config.vertex_attributes[i]; + vk_attributes[i].binding = ra.binding; + vk_attributes[i].location = ra.location; + vk_attributes[i].offset = ra.offset; + vk_attributes[i].format = vk_format_from_rend_format[ra.format]; + } + } + + vertex_input_info.vertexBindingDescriptionCount = binding_count; + vertex_input_info.pVertexBindingDescriptions = vk_bindings; + vertex_input_info.vertexAttributeDescriptionCount = attribute_count; + vertex_input_info.pVertexAttributeDescriptions = vk_attributes; + + input_assembly.topology = vk_topology[config.topology]; + input_assembly.primitiveRestartEnable = VK_FALSE; + } + + VkGraphicsPipelineCreateInfo pipeline_info = { VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO}; + pipeline_info.pNext = &rendering_info; + pipeline_info.stageCount = shader_count; + pipeline_info.pStages = shader_stages; + pipeline_info.pVertexInputState = &vertex_input_info; + pipeline_info.pInputAssemblyState = &input_assembly; + pipeline_info.pViewportState = &viewport_state; + pipeline_info.pRasterizationState = &rasterizer; + pipeline_info.pMultisampleState = &multisampling; + pipeline_info.pColorBlendState = &color_blending; + pipeline_info.pDepthStencilState = &depth_stencil; + pipeline_info.pDynamicState = &dynamic_state; + pipeline_info.layout = vk_pipeline->layout; + pipeline_info.renderPass = VK_NULL_HANDLE; + + CHECK_VK_RESULT(vkCreateGraphicsPipelines(vk_device.logical_device, VK_NULL_HANDLE, 1, &pipeline_info, vk_allocator, &vk_pipeline->handle)); + + if (vk_bindings) rfree(vk_bindings); + if (vk_attributes) rfree(vk_attributes); + + } + + /* destroy shader modules */ + for (uint32_t i = 0; i < shader_count; ++i) { + if (shader_modules[i] != VK_NULL_HANDLE) { + vkDestroyShaderModule(vk_device.logical_device, shader_modules[i], vk_allocator); + } + } + + return true; +} + + +extern void +rend_vk_pipeline_bind(RendPipeline pipeline) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + RendVkPipeline vk_pipeline = ctx->pipelines[pipeline->idx]; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + VkPipelineBindPoint bind_point = (pipeline->type == REND__PIPELINE_COMPUTE) ? VK_PIPELINE_BIND_POINT_COMPUTE : VK_PIPELINE_BIND_POINT_GRAPHICS; + vkCmdBindPipeline(cmd, bind_point, vk_pipeline.handle); + vkCmdBindDescriptorSets(cmd, bind_point, vk_pipeline.layout, 0, 1, &ctx->desc_set, 0, NULL); +} + +extern void +rend_vk_pipeline_push_constants(RendPipeline pipeline, void *push_data, size_t size) +{ + RASSERT(pipeline && push_data); + + RendVk14Context *ctx = pipeline->backend_ctx; + RendVkPipeline p = ctx->pipelines[pipeline->idx]; + RASSERT(size <= p.push_constants_range && "Size exceeds bound push constant range!"); + vkCmdPushConstants(ctx->frame_resources[ctx->frame_index].command_buffer, p.layout, VK_SHADER_STAGE_ALL, 0, size, push_data); +} + +extern void +rend_vk_pipeline_bind_vertex_buffer(RendPipeline pipeline, uint32_t binding, RendBuffer buffer, size_t offset) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + VkBuffer buf = (VkBuffer)(uintptr_t)buffer.handle; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + + VkDeviceSize vk_offset = (VkDeviceSize)offset; + vkCmdBindVertexBuffers(cmd, binding, 1, &buf, &vk_offset); +} + +extern void +rend_vk_pipeline_bind_index_buffer(RendPipeline pipeline, RendBuffer buffer, size_t offset, RendIndexType index_type) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + VkBuffer buf = (VkBuffer)(uintptr_t)buffer.handle; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + + VkIndexType vk_index_type = (index_type == REND_INDEX_UINT16) ? VK_INDEX_TYPE_UINT16 : VK_INDEX_TYPE_UINT32; + + vkCmdBindIndexBuffer(cmd, buf, (VkDeviceSize)offset, vk_index_type); +} + +extern void +rend_vk_descriptor_write_texture(void *ctx, RendTexture *texture, uint32_t binding, uint32_t slot) +{ + RendVk14Context *vk_ctx = (RendVk14Context*) ctx; + + VkDescriptorImageInfo image_info = { + .sampler = (VkSampler) texture->sampler, + .imageView = (VkImageView) texture->view, + .imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, + }; + + VkWriteDescriptorSet descriptor_write = { + .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, + .dstSet = vk_ctx->desc_set, + .dstBinding = binding, + .dstArrayElement = slot, // write texture to slot + .descriptorCount = 1, + .descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, + .pImageInfo = &image_info, + }; + + vkUpdateDescriptorSets(vk_device.logical_device, 1, &descriptor_write, 0, NULL); +} + +extern void +rend_vk_pipeline_dispatch(RendPipeline pipeline, uint32_t x, uint32_t y, uint32_t z) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + vkCmdDispatch(cmd, x, y, z); +} + +extern void +rend_vk_pipeline_draw(RendPipeline pipeline, size_t count, uint32_t instance_count) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + vkCmdDraw(cmd, count, instance_count, 0, 0); +} + +extern void +rend_vk_pipeline_draw_indexed(RendPipeline pipeline, uint32_t index_count, uint32_t first_index, int32_t vertex_offset, uint32_t instance_count) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + vkCmdDrawIndexed(cmd, index_count, instance_count, first_index, vertex_offset, 0); +} + +extern void +rend_vk_pipeline_set_blend(RendPipeline pipeline, bool blend) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + RendVkPipeline *vk_pipeline = &ctx->pipelines[pipeline->idx]; + vk_pipeline->blend_enable = blend; +} + +extern void +rend_vk_pipeline_draw_instanced(RendPipeline pipeline, uint32_t index_count, uint32_t instance_count) +{ + RendVk14Context *ctx = pipeline->backend_ctx; + VkCommandBuffer cmd = ctx->frame_resources[ctx->frame_index].command_buffer; + vkCmdDraw(cmd, index_count, instance_count, 0, 0); +} + +extern VKAPI_ATTR VkBool32 VKAPI_CALL +rend_vk_debug_func(VkDebugUtilsMessageSeverityFlagBitsEXT message_severity, VkDebugUtilsMessageTypeFlagsEXT message_types, const VkDebugUtilsMessengerCallbackDataEXT *callback_data, void *user_data) +{ + switch (message_severity) { + default: + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: + PERROR(callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: + PWARN(callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: + PINFO(callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: + PTRACE(callback_data->pMessage); + break; + } + return VK_FALSE; +} + + + +static void +rend_vk_pipeline_destroy(RendVkPipeline *pipeline) +{ + VkDevice dev = vk_device.logical_device; + + if (pipeline->handle != VK_NULL_HANDLE) { + vkDestroyPipeline(dev, pipeline->handle, vk_allocator); + } + + if (pipeline->layout != VK_NULL_HANDLE) { + vkDestroyPipelineLayout(dev, pipeline->layout, vk_allocator); + } +} + +static void +rend_vk_swapchain_create(RendVk14Context *ctx, RendVkSwapchain *swapchain) +{ + RASSERT(ctx && "No context provided."); + RASSERT(swapchain && "No swapchain provided."); + + VkSurfaceCapabilitiesKHR surface_caps; + vkGetPhysicalDeviceSurfaceCapabilitiesKHR(vk_device.physical_device, ctx->surface, &surface_caps); + uint32_t width = surface_caps.currentExtent.width; + uint32_t height = surface_caps.currentExtent.height; + + VkExtent2D swapchain_extent = {width, height}; + + ctx->max_frames_in_flight = REND_MIN_FRAMES_IN_FLIGHT; + + if (surface_caps.minImageCount > ctx->max_frames_in_flight) { + ctx->max_frames_in_flight = surface_caps.minImageCount; + } + + if (surface_caps.maxImageCount < ctx->max_frames_in_flight) { + ctx->max_frames_in_flight = surface_caps.maxImageCount; + } + + bool found = false; + for (uint32_t i = 0; i < vk_device.swapchain_support.format_count; i++) { + VkSurfaceFormatKHR format = vk_device.swapchain_support.format[i]; + + /* preferred format */ + if (format.format == VK_FORMAT_B8G8R8A8_UNORM && + format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) { + swapchain->format = format; + found = true; + break; + } + } + + /* default format */ + if (!found) { + swapchain->format = vk_device.swapchain_support.format[0]; + } + + /* NOTE: mailbox is probably the best for most applications + * but I may want the ability to pick a different mode in + * very niche circumstances. + * + * We also may want immediate mode if we want to disable VSYNC. + */ + + /* default present mode */ + VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR; + for (uint32_t i = 0; i < vk_device.swapchain_support.present_mode_count; i++) { + VkPresentModeKHR pres = vk_device.swapchain_support.present_modes[i]; + /* preferred format is mailbox */ + if (ctx->vsync) { + if (pres == VK_PRESENT_MODE_MAILBOX_KHR) { + present_mode = pres; + break; + } + } else { + if (pres == VK_PRESENT_MODE_IMMEDIATE_KHR) { + present_mode = pres; + break; + } + } + } + +#ifdef REND_DEBUG + static const char* present_mode_names[] = { + [VK_PRESENT_MODE_IMMEDIATE_KHR] = "IMMEDIATE", + [VK_PRESENT_MODE_MAILBOX_KHR] = "MAILBOX", + [VK_PRESENT_MODE_FIFO_KHR] = "FIFO", + [VK_PRESENT_MODE_FIFO_RELAXED_KHR] = "FIFO_RELAXED" + }; + PDEBUG("Present mode %s was chosen!", present_mode_names[present_mode]); +#endif + + VkExtent2D min = surface_caps.minImageExtent; + VkExtent2D max = surface_caps.maxImageExtent; + swapchain_extent.width = (swapchain_extent.width < min.width) ? min.width : swapchain_extent.width; + swapchain_extent.width = (swapchain_extent.width > max.width) ? max.width : swapchain_extent.width; + swapchain_extent.height = (swapchain_extent.height < min.height) ? min.height : swapchain_extent.height; + swapchain_extent.height = (swapchain_extent.height > max.height) ? max.height : swapchain_extent.height; + + uint32_t img_count = surface_caps.minImageCount + 1; + if (surface_caps.maxImageCount > 0 && img_count > surface_caps.maxImageCount) { + img_count = surface_caps.maxImageCount; + } + + VkSwapchainCreateInfoKHR swapchain_create_info = { VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR}; + swapchain_create_info.surface = ctx->surface; + swapchain_create_info.minImageCount = img_count; + swapchain_create_info.imageFormat = swapchain->format.format; + swapchain_create_info.imageColorSpace = swapchain->format.colorSpace; + swapchain_create_info.imageExtent = swapchain_extent; + swapchain_create_info.imageArrayLayers = 1; + swapchain_create_info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT; + + /* index sharing */ + if (vk_device.graphics_family_index != vk_device.present_family_index) { + uint32_t queueFamilyIndices[] = {vk_device.graphics_family_index, vk_device.present_family_index}; + swapchain_create_info.imageSharingMode = VK_SHARING_MODE_CONCURRENT; + swapchain_create_info.queueFamilyIndexCount = 2; + swapchain_create_info.pQueueFamilyIndices = queueFamilyIndices; + } else { + swapchain_create_info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; + swapchain_create_info.queueFamilyIndexCount = 0; + swapchain_create_info.pQueueFamilyIndices = 0; + } + + swapchain_create_info.preTransform = surface_caps.currentTransform; + swapchain_create_info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR; + swapchain_create_info.presentMode = present_mode; + swapchain_create_info.clipped = VK_TRUE; + swapchain_create_info.oldSwapchain = 0; + + if (vkCreateSwapchainKHR(vk_device.logical_device, &swapchain_create_info, vk_allocator, &swapchain->handle) != VK_SUCCESS) { + REND__CRASH("Swapchain creation failed, you are probably trying to create two renderers for the same surface!"); + } + + swapchain->image_count = 0; + CHECK_VK_RESULT(vkGetSwapchainImagesKHR(vk_device.logical_device, swapchain->handle, &swapchain->image_count, 0)); + + if (!swapchain->images) { + swapchain->images = rmalloc(swapchain->image_count * sizeof *swapchain->images); + } + if (!swapchain->views) { + swapchain->views = rmalloc(swapchain->image_count * sizeof *swapchain->views); + } + + CHECK_VK_RESULT( vkGetSwapchainImagesKHR(vk_device.logical_device, swapchain->handle, &swapchain->image_count, swapchain->images)); + + for (uint32_t i = 0; i < swapchain->image_count; i++) { + + VkImageViewCreateInfo view_info = { VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO}; + view_info.image = swapchain->images[i]; + view_info.viewType = VK_IMAGE_VIEW_TYPE_2D; + view_info.format = swapchain->format.format; + view_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + view_info.subresourceRange.baseMipLevel = 0; + view_info.subresourceRange.levelCount = 1; + view_info.subresourceRange.baseArrayLayer = 0; + view_info.subresourceRange.layerCount = 1; + + CHECK_VK_RESULT(vkCreateImageView(vk_device.logical_device, &view_info, vk_allocator, &swapchain->views[i])); + } + + /* depth resources */ + if (!rend_vk_device_detect_depth_format(&vk_device)) { + vk_device.depth_format = VK_FORMAT_UNDEFINED; + PFATAL("Failed to find a supported depth buffer format!"); + } + + swapchain->depth_attachment = rend_vk_image_create( + vk_device.logical_device, + VK_IMAGE_TYPE_2D, + swapchain_extent.width, swapchain_extent.height, + vk_device.depth_format, + VK_IMAGE_TILING_OPTIMAL, + VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, + VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, + 1, // depth + 1, // mip level + 1, // layers + VK_SAMPLE_COUNT_1_BIT, + VK_SHARING_MODE_EXCLUSIVE + ); + + uint32_t mem_type = rend_vk_image_required_memory_type(&swapchain->depth_attachment); + uint32_t depth_index = rend_vk_get_heap_index(mem_type, vk_device.device_index); + + RASSERT(ctx); + RendMemory depth_mem = rend_vk_arena_alloc(&ctx->arena_persistent, swapchain->depth_attachment.requirements.size, depth_index); + + rend_vk_image_bind_memory(&swapchain->depth_attachment, &depth_mem); + + rend_vk_image_view_create( + &swapchain->depth_attachment, + VK_IMAGE_VIEW_TYPE_2D, + VK_IMAGE_ASPECT_DEPTH_BIT + ); + + swapchain->extent = swapchain_extent; + +} + +static void +rend_vk_swapchain_destroy(RendVk14Context *ctx, RendVkSwapchain *swapchain) +{ + if (!swapchain || swapchain->handle == VK_NULL_HANDLE) return; + RASSERT(vk_device.logical_device); + + rend_vk_image_destroy(&swapchain->depth_attachment); + + if (swapchain->views) { + for (uint32_t i = 0; i < swapchain->image_count; i++) { + vkDestroyImageView(vk_device.logical_device, swapchain->views[i], vk_allocator); + } + rfree(swapchain->views); + swapchain->views = 0; + } + + if (swapchain->images) { + rfree(swapchain->images); + swapchain->images = 0; + } + + swapchain->image_count = 0; + vkDestroySwapchainKHR(vk_device.logical_device, swapchain->handle, vk_allocator); + swapchain->handle = VK_NULL_HANDLE; +} + +static VkShaderModule +rend_vk_shader_module_create(const void *data, size_t size) +{ + + VkShaderModuleCreateInfo create_info = { VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO}; + create_info.codeSize = size; + create_info.pCode = (const uint32_t *)data; + + VkShaderModule module; + VkResult res = vkCreateShaderModule(vk_device.logical_device, &create_info, vk_allocator, &module); + + if (res != VK_SUCCESS) { + PWARN("Failed to create shader module for %p", data); + return VK_NULL_HANDLE; + } + + return module; +} + +static uint32_t +rend_vk_get_heap_index(uint32_t memory_type_bits, uint32_t preferred_index) +{ + if (memory_type_bits & (1u << preferred_index)) { + return preferred_index; + } + + for (uint32_t i = 0; i < 32; i++) { + if (memory_type_bits & (1u << i)) { + return i; + } + } + + return UINT32_MAX; +} diff --git a/Rend/rend_vk_allocator.c b/Rend/rend_vk_allocator.c new file mode 100644 index 0000000..737e566 --- /dev/null +++ b/Rend/rend_vk_allocator.c @@ -0,0 +1,118 @@ +#pragma once +#include "rend_internal.h" +#include <stdint.h> +#include <vulkan/vulkan.h> +#include <vulkan/vulkan_core.h> + +typedef struct RendVkAllocatorState { + const char *name; +} RendVkAllocatorState; + +typedef struct RendVkAllocatorHeader { + uint32_t offset; +} RendVkAllocatorHeader; + +static bool rend_vk_allocator_is_power_of_two(uintptr_t x); +static void *rend_vk_allocator_alloc(void *pUserData, size_t size, size_t alignment, VkSystemAllocationScope allocationScope); +static void *rend_vk_allocator_realloc(void *pUserData, void *pOriginal, size_t size, size_t alignment, VkSystemAllocationScope allocationScope); +static void rend_vk_allocator_free(void *pUserData, void *pMemory); +static void rend_vk_allocator_internal_notification(void *pUserData, size_t size, VkInternalAllocationType allocationType, VkSystemAllocationScope allocationScope); +static void rend_vk_allocator_free_notification(void *pUserData, size_t size, VkInternalAllocationType allocationType, VkSystemAllocationScope allocationScope); + +static VkAllocationCallbacks rend_vk_allocator = { + .pfnAllocation = rend_vk_allocator_alloc, + .pfnReallocation = rend_vk_allocator_realloc, + .pfnFree = rend_vk_allocator_free, + .pfnInternalAllocation = rend_vk_allocator_internal_notification, + .pfnInternalFree = rend_vk_allocator_free_notification, +}; + +static const char* rend_vk_allocator_scope_name[] = { + [VK_SYSTEM_ALLOCATION_SCOPE_CACHE] = "Cache", + [VK_SYSTEM_ALLOCATION_SCOPE_COMMAND] = "Command", + [VK_SYSTEM_ALLOCATION_SCOPE_DEVICE] = "Device", + [VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE] = "Instance", + [VK_SYSTEM_ALLOCATION_SCOPE_OBJECT] = "Object", +}; + + +static bool +rend_vk_allocator_is_power_of_two(uintptr_t x) +{ + return (x & (x-1)) == 0; +} + +static uintptr_t +rend_vk_allocator_align_forward(uintptr_t ptr, size_t align) +{ + uintptr_t p, a, modulo; + + assert(rend_vk_allocator_is_power_of_two(align)); + + p = ptr; + a = (uintptr_t)align; + modulo = p & (a-1); + + if (modulo != 0) { + p += a - modulo; + } + return p; +} + +static void* +rend_vk_allocator_alloc(void *pUserData, size_t size, size_t alignment, VkSystemAllocationScope allocationScope) +{ + size_t total_size = size + alignment + sizeof (RendVkAllocatorHeader); + uint8_t *raw_ptr = malloc(total_size); + uintptr_t unaligned_addr = (uintptr_t)(raw_ptr + sizeof (RendVkAllocatorHeader)); + + uint8_t *aligned_ptr = (uint8_t*)rend_vk_allocator_align_forward(unaligned_addr, alignment); + RendVkAllocatorHeader *header = (RendVkAllocatorHeader*) aligned_ptr - 1; + header->offset = aligned_ptr - raw_ptr; + + PDEBUG("[VK_ALLOC] %p - bytes %lu with alignment %lu - scope %s", + aligned_ptr, size, alignment, rend_vk_allocator_scope_name[allocationScope]); + + return (void*) aligned_ptr; +} + +static void* +rend_vk_allocator_realloc(void *pUserData, void *pOriginal, size_t size, size_t alignment, VkSystemAllocationScope allocationScope) +{ + if (!pOriginal) return rend_vk_allocator_alloc(pUserData, size, alignment, allocationScope); + if (size == 0) { + rend_vk_allocator_free(pUserData, pOriginal); + return NULL; + } + void *new_ptr = rend_vk_allocator_alloc(pUserData, size, alignment, allocationScope); + if (!new_ptr) return NULL; + memcpy(new_ptr, pOriginal, size); + rend_vk_allocator_free(pUserData, pOriginal); + return new_ptr; +} + +static void +rend_vk_allocator_free(void *pUserData, void *pMemory) +{ + RendVkAllocatorHeader *ptr = pMemory; + uint8_t *raw_ptr = pMemory; + raw_ptr -= (ptr-1)->offset; + + PDEBUG("[VK_FREE] %p", ptr); + free(raw_ptr); +} + +static void +rend_vk_allocator_internal_notification(void *pUserData, size_t size, VkInternalAllocationType allocationType, VkSystemAllocationScope allocationScope) +{ + PDEBUG("[VK_ALLOC_INTERNAL] bytes %lu - scope %s", + size, rend_vk_allocator_scope_name[allocationScope]); + +} + +static void +rend_vk_allocator_free_notification(void *pUserData, size_t size, VkInternalAllocationType allocationType, VkSystemAllocationScope allocationScope) +{ + PDEBUG("[VK_FREE_INTERNAL] bytes %lu - scope %s", + size, rend_vk_allocator_scope_name[allocationScope]); +} diff --git a/Rend/rend_vk_arena.c b/Rend/rend_vk_arena.c new file mode 100644 index 0000000..b936be4 --- /dev/null +++ b/Rend/rend_vk_arena.c @@ -0,0 +1,264 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + +/* arenas need to be subdivided into blocks + * just like pools because we must respect page size */ +typedef struct RendVkPage { + RendMemory memory; + size_t head; + int reserved; +} RendVkPage; + +typedef struct RendVkPagedArena { + RendVkPage *page_darr; + uint32_t capacity; + uint32_t elements; +} RendVkPagedArena; + +struct RendVkArenaAllocator { + VkAllocationCallbacks *allocator; + size_t *heap_idx_alloc_sizes; // allocation size per type of memory available on the gpu + RendVkPagedArena *mem_arenas; // memory arena per type of memory available on the gpu + VkDevice logical_device; // virtual device + VkPhysicalDevice physical_device; // physical device we are allocating memory from + VkDeviceSize gpu_alignment; // allocations must respect the physical limitations of the gpu + VkDeviceSize block_min_size; // minimum size per block of memory + uint64_t total_allocations; + uint32_t heap_index_count; + VkPhysicalDeviceMemoryProperties properties; // useful for getting properties per heap index +}; + +static RendVkArenaAllocator +rend_vk_arena_create(VkDevice logical_device, VkPhysicalDevice physical_device, VkPhysicalDeviceLimits device_limits, VkAllocationCallbacks *allocator) +{ + RendVkArenaAllocator arena = { + .allocator = allocator, + .heap_idx_alloc_sizes = NULL, + .logical_device = logical_device, + .physical_device = physical_device, + .gpu_alignment = 0, + .block_min_size = 0, + .total_allocations = 0, + .heap_index_count = 0, + .mem_arenas = 0, + }; + + VkPhysicalDeviceMemoryProperties mem_properties; + vkGetPhysicalDeviceMemoryProperties(physical_device, &mem_properties); + arena.properties = mem_properties; + + uint32_t count = mem_properties.memoryTypeCount; + arena.heap_index_count = count; + + arena.heap_idx_alloc_sizes = rmalloc(count * sizeof *arena.heap_idx_alloc_sizes); + memset(arena.heap_idx_alloc_sizes, 0, count * sizeof *arena.heap_idx_alloc_sizes); + + arena.mem_arenas = rmalloc(count * sizeof *arena.mem_arenas); + for (uint32_t u = 0; u < count; ++u) { + arena.mem_arenas[u].capacity = 2; + arena.mem_arenas[u].elements = 0; + arena.mem_arenas[u].page_darr = rmalloc(2 * sizeof *arena.mem_arenas[u].page_darr); + memset(arena.mem_arenas[u].page_darr, 0, 2 * sizeof *arena.mem_arenas[u].page_darr); + } + + VkDeviceSize alignment = device_limits.bufferImageGranularity; + if (device_limits.nonCoherentAtomSize > alignment) { + alignment = device_limits.nonCoherentAtomSize; + } + + arena.gpu_alignment = alignment; + arena.block_min_size = arena.gpu_alignment * 10; + + return arena; +} + +static uint32_t +rend_vk_arena_add_page(RendVkArenaAllocator *arena, VkDeviceSize size, uint32_t heap_index, bool fit_to_alloc) +{ + VkDeviceSize new_arena_size = fit_to_alloc ? size : (size * 2); + new_arena_size = (new_arena_size < arena->block_min_size) ? arena->block_min_size : new_arena_size; + + VkMemoryPropertyFlags properties = arena->properties.memoryTypes[heap_index].propertyFlags; + + RendVkPage page = (RendVkPage) {0}; + page.head = 0; + + VkMemoryAllocateFlagsInfo flags_info = { + .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO, + .pNext = NULL, + .flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT, + .deviceMask = 0 + }; + + VkMemoryAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, + .allocationSize = new_arena_size, + .pNext = &flags_info, + .memoryTypeIndex = heap_index + }; + + page.memory = (RendMemory) {0}; + page.memory.offset = 0; + page.memory.size = new_arena_size; + + VkResult res = vkAllocateMemory(arena->logical_device, &alloc_info, arena->allocator, (VkDeviceMemory*) &page.memory.device_memory); + if (res != VK_SUCCESS) { + return UINT32_MAX; + } + + if (properties & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) { + vkMapMemory( + arena->logical_device, + (VkDeviceMemory) page.memory.device_memory, + 0, // Offset inside VkDeviceMemory!!!1 + new_arena_size, // MUST match alloc_info.allocationSize and NOT raw size!!! + 0, + &page.memory.host_mapped_memory + ); + } + + RendVkPagedArena *mem_arena = &arena->mem_arenas[heap_index]; + + if (mem_arena->elements + 1 >= mem_arena->capacity) { + uint32_t new_capacity = mem_arena->capacity * 2; + void *new_darr = rrealloc(mem_arena->page_darr, new_capacity * sizeof *mem_arena->page_darr); + if (!new_darr) { + vkFreeMemory(arena->logical_device, (VkDeviceMemory) page.memory.device_memory, arena->allocator); + return UINT32_MAX; + } + mem_arena->page_darr = new_darr; + mem_arena->capacity = new_capacity; + } + + uint32_t page_index = mem_arena->elements; + mem_arena->page_darr[mem_arena->elements++] = page; + + arena->total_allocations++; + + return page_index; +} + +static RendMemory +rend_vk_arena_alloc(RendVkArenaAllocator *arena, VkDeviceSize size, uint32_t heap_index) +{ + assert(heap_index < 32 && "Unusual heap index. Did you pass the memory type instead?"); + RendVkPagedArena *mem_arena = &arena->mem_arenas[heap_index]; + + VkMemoryPropertyFlags properties = arena->properties.memoryTypes[heap_index].propertyFlags; + + /* align to allocation to fit page size */ + VkDeviceSize align = arena->gpu_alignment; + VkDeviceSize aligned_size = (size + align - 1) & ~(align - 1); + + /* check if fits in previous blocks */ + int whole_page = !(properties & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT); + uint32_t page_idx = UINT32_MAX; + for (uint32_t u = 0; u < mem_arena->elements; ++u) { + RendVkPage page = mem_arena->page_darr[u]; + int valid = (whole_page) ? (page.head == 0) : 1; + if ((page.head + aligned_size <= page.memory.size) && valid) { + page_idx = u; + break; + } + } + + /* page not found, add new page */ + if (page_idx == UINT32_MAX) { + page_idx = rend_vk_arena_add_page(arena, aligned_size, heap_index, whole_page); + if (page_idx == UINT32_MAX) { + REND__CRASH("[REND_VK] Arena page allocation failed!"); + } + } + + mem_arena->page_darr[page_idx].reserved = whole_page; + + RendMemory memory = { + .device_memory = mem_arena->page_darr[page_idx].memory.device_memory, + .size = aligned_size, + .offset = mem_arena->page_darr[page_idx].head, + .host_mapped_memory = 0, + .heap_index = heap_index, + .id = page_idx, + }; + + if (properties & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) { + memory.host_mapped_memory = mem_arena->page_darr[page_idx].memory.host_mapped_memory + memory.offset; + } + + /* move head */ + arena->heap_idx_alloc_sizes[heap_index] += aligned_size; + mem_arena->page_darr[page_idx].head += aligned_size; + return memory; +} + + +static void +rend_vk_arena_clear(RendVkArenaAllocator *arena, uint32_t heap_index) +{ + assert(heap_index < 32 && "Unusual heap index. Did you pass the memory type instead?"); + RendVkPagedArena mem_arena = arena->mem_arenas[heap_index]; + if (mem_arena.page_darr) { + for (uint32_t u = 0; u < mem_arena.elements; ++u) { + mem_arena.page_darr[u].head = 0; + mem_arena.page_darr[u].reserved = 0; + } + } +} + +static void +rend_vk_arena_clear_all(RendVkArenaAllocator *arena) +{ + for (uint32_t u = 0; u < arena->properties.memoryTypeCount; ++u) { + rend_vk_arena_clear(arena, u); + } +} + +static void +rend_vk_arena_shrink(RendVkArenaAllocator *arena, uint32_t heap_index) +{ + assert(heap_index < 32 && "Unusual heap index. Did you pass the memory type instead?"); + RendVkPagedArena *mem_arena = &arena->mem_arenas[heap_index]; + if (mem_arena->capacity > 4) { + uint32_t new_capacity = mem_arena->capacity / 2; + void *new_darr = rrealloc(mem_arena->page_darr, new_capacity * sizeof *mem_arena->page_darr); + if (!new_darr) return; + mem_arena->page_darr = new_darr; + mem_arena->capacity = new_capacity; + } +} + +static void +rend_vk_arena_destroy(RendVkArenaAllocator *arena) +{ + if (arena->mem_arenas) { + for (size_t u = 0; u < arena->heap_index_count; ++u) { + RendVkPagedArena *mem_arena = &arena->mem_arenas[u]; + for (uint32_t p = 0; p < mem_arena->elements; ++p) { + + RendMemory memory = mem_arena->page_darr[p].memory ; + if (memory.offset == 0) { + if (memory.host_mapped_memory) { + vkUnmapMemory(arena->logical_device, (VkDeviceMemory) memory.device_memory); + } + vkFreeMemory(arena->logical_device, (VkDeviceMemory) memory.device_memory, arena->allocator); + } else { + PWARN("[REND_VK] Attempted to free memory with an offset!"); + } + + } + if (mem_arena->page_darr) { + rfree(mem_arena->page_darr); + mem_arena->page_darr = 0; + } + } + rfree(arena->mem_arenas); + arena->mem_arenas = 0; + } + if (arena->heap_idx_alloc_sizes) { + rfree(arena->heap_idx_alloc_sizes); + arena->heap_idx_alloc_sizes = 0; + } + memset(arena, 0, sizeof *arena); +} diff --git a/Rend/rend_vk_device.c b/Rend/rend_vk_device.c new file mode 100644 index 0000000..cb9f8f8 --- /dev/null +++ b/Rend/rend_vk_device.c @@ -0,0 +1,383 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + +// struct RendDevice { +// bool anisotropy_support; +// bool bindless_support; +// }; + + +static bool +rend_vk_device_create(VkSurfaceKHR surface, RendSpecs specs, RendVkDevice *out_device, uint32_t (*score_devices)(RendVkDevice *, RendSpecs, char **)) +{ + assert(out_device); + + uint32_t device_count = 0; + CHECK_VK_RESULT(vkEnumeratePhysicalDevices(vk_instance, &device_count, VK_NULL_HANDLE)); + if (device_count == 0) { + PFATAL("No GPU with Vulkan support found!"); + return false; + } + + VkPhysicalDevice physical_devices[device_count]; + CHECK_VK_RESULT(vkEnumeratePhysicalDevices(vk_instance, &device_count, physical_devices)); + + char **extension_names_darray = NULL; + p_darray_push(extension_names_darray, VK_KHR_SWAPCHAIN_EXTENSION_NAME); + + uint32_t best_score = 1; // 1 so that devices that do not meet specs get ignored + RendVkDevice best_device = {0}; + + PDEBUG("DEVICE SCORE"); + for (uint32_t i = 0; i < device_count; i++) { + + /* populate device struct */ + RendVkDevice scoring = {0}; + scoring.surface = surface; + scoring.physical_device = physical_devices[i]; + vkGetPhysicalDeviceProperties(physical_devices[i], &scoring.properties); + vkGetPhysicalDeviceFeatures(physical_devices[i], &scoring.features); + vkGetPhysicalDeviceMemoryProperties(physical_devices[i], &scoring.memory); + + /* score device */ + uint32_t dev_score = score_devices(&scoring, specs, extension_names_darray); + PDEBUG("%-20.20s %5d", scoring.properties.deviceName, dev_score); + if (dev_score >= best_score) { + if (best_device.swapchain_support.format) { + rfree(best_device.swapchain_support.format); + } + if (best_device.swapchain_support.present_modes) { + rfree(best_device.swapchain_support.present_modes); + } + best_score = dev_score; + best_device = scoring; + } else { + if (scoring.swapchain_support.format) { + rfree(scoring.swapchain_support.format); + } + if (scoring.swapchain_support.present_modes) { + rfree(scoring.swapchain_support.present_modes); + } + } + + } + + /* free extensions array after scoring */ + p_darray_destroy(extension_names_darray); + + if (best_score > 1) { + PDEBUG("Driver version %d.%d.%d", VK_VERSION_MAJOR(best_device.properties.driverVersion), VK_VERSION_MINOR(best_device.properties.driverVersion), VK_VERSION_PATCH(best_device.properties.driverVersion)); + PDEBUG("Vulkan API version %d.%d.%d", VK_VERSION_MAJOR(best_device.properties.apiVersion), VK_VERSION_MINOR(best_device.properties.apiVersion), VK_VERSION_PATCH(best_device.properties.apiVersion)); + } + + if (!best_device.physical_device) { + PERROR("No physical devices were found that meet specs!"); + return false; + } + + /* update out device to use best selected device */ + *out_device = best_device; + + PDEBUG("Graphics Family Index: %u", out_device->graphics_family_index); + PDEBUG("Present Family Index: %u", out_device->present_family_index); + PDEBUG("Compute Family Index: %u", out_device->compute_family_index); + PDEBUG("Transfer Family Index: %u", out_device->transfer_family_index); + + bool present_shares_graphics_q = out_device->present_family_index == out_device->graphics_family_index; + bool transfer_shares_graphics_q = out_device->transfer_family_index == out_device->graphics_family_index; + + uint32_t index_count = 1; + if (!present_shares_graphics_q) index_count++; + if (!transfer_shares_graphics_q) index_count++; + + uint32_t indices[index_count]; + uint8_t index = 0; + + indices[index++] = out_device->graphics_family_index; + if (!present_shares_graphics_q) { + indices[index++] = out_device->present_family_index; + } + if (!transfer_shares_graphics_q) { + indices[index++] = out_device->transfer_family_index; + } + + VkDeviceQueueCreateInfo q_create_info[index_count]; + + f32 queue_priority[2] = {1.0f, 1.0f}; + for (uint32_t i = 0; i < index_count; i++) { + q_create_info[i].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + q_create_info[i].queueFamilyIndex = indices[i]; + // TODO: request 2 queues when possible + // q_create_info[i].queueCount = (indices[i] == out_device->graphics_family_index) ? 2 : 1; + q_create_info[i].queueCount = 1; + q_create_info[i].flags = 0; + q_create_info[i].pNext = 0; + q_create_info[i].pQueuePriorities = queue_priority; + } + + // TODO: driven by the same config as the check_specs function + // used earlier + + VkPhysicalDeviceFeatures device_features = {0}; + device_features.samplerAnisotropy = specs.sampler_anisotropy; + device_features.fillModeNonSolid = VK_TRUE; + device_features.shaderInt64 = VK_TRUE; + + // vulkan 1.3 features (dynamic rendering + sync2) + VkPhysicalDeviceVulkan13Features vk13_features = {0}; + vk13_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES; + vk13_features.dynamicRendering = VK_TRUE; + vk13_features.synchronization2 = VK_TRUE; + + // vulkan 1.2 features (timeline semaphores) + VkPhysicalDeviceVulkan12Features vk12_features = {0}; + vk12_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES; + vk12_features.timelineSemaphore = VK_TRUE; + + // vk12_features.descriptorIndexing = VK_TRUE; + // vk12_features.descriptorBindingSampledImageUpdateAfterBind = VK_TRUE; + vk12_features.descriptorBindingPartiallyBound = VK_TRUE; + // vk12_features.descriptorBindingUniformBufferUpdateAfterBind = VK_TRUE; + // vk12_features.descriptorBindingVariableDescriptorCount = VK_TRUE; + // vk12_features.runtimeDescriptorArray = VK_TRUE; + + vk12_features.bufferDeviceAddress = VK_TRUE; + vk12_features.scalarBlockLayout = VK_TRUE; + vk12_features.pNext = &vk13_features; + + // vulkan 1.1 features (draw parameters) + VkPhysicalDeviceVulkan11Features vk11_features = {0}; + vk11_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES; + vk11_features.shaderDrawParameters = VK_TRUE; + vk11_features.pNext = &vk12_features; + + VkDeviceCreateInfo device_create_info = { VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO }; + device_create_info.pNext = &vk11_features; + device_create_info.queueCreateInfoCount = index_count; + device_create_info.pQueueCreateInfos = q_create_info; + device_create_info.pEnabledFeatures = &device_features; + device_create_info.enabledExtensionCount = 1; + + const char *extention_names = VK_KHR_SWAPCHAIN_EXTENSION_NAME; + device_create_info.ppEnabledExtensionNames = &extention_names; + + /* deprecated and ignored */ + device_create_info.enabledLayerCount = 0; + device_create_info.ppEnabledLayerNames = 0; + + CHECK_VK_RESULT(vkCreateDevice(out_device->physical_device, &device_create_info, vk_allocator, &out_device->logical_device)); + + vkGetDeviceQueue(out_device->logical_device, out_device->graphics_family_index, 0, &out_device->graphics_queue); + vkGetDeviceQueue(out_device->logical_device, out_device->present_family_index, 0, &out_device->present_queue); + vkGetDeviceQueue(out_device->logical_device, out_device->transfer_family_index, 0, &out_device->transfer_queue); + + PDEBUG("GRAPHICS | PRESENT | COMPUTE | TRANSFER | DEVICE"); + PDEBUG(" %02d | %02d | %02d | %02d | %s", + out_device->graphics_family_index != UINT32_MAX, + out_device->present_family_index != UINT32_MAX, + out_device->compute_family_index != UINT32_MAX, + out_device->transfer_family_index != UINT32_MAX, + out_device->properties.deviceName); + + VkPhysicalDeviceMemoryProperties mem_props = out_device->memory; + out_device->device_index = UINT32_MAX; + for (uint32_t i = 0; i < mem_props.memoryTypeCount; i++) { + if ((mem_props.memoryTypes[i].propertyFlags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) == VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) { + out_device->device_index = i; + break; + } + } + + VkMemoryPropertyFlags host_flags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT; + out_device->host_index = UINT32_MAX; + for (uint32_t i = 0; i < mem_props.memoryTypeCount; i++) { + if ((mem_props.memoryTypes[i].propertyFlags & host_flags) == host_flags) { + out_device->host_index = i; + break; + } + } + + PDEBUG("Device local heap: %2u", out_device->device_index); + PDEBUG("Host mapped heap: %2u", out_device->host_index); + return true; +} + +static void +rend_vk_device_destroy(RendVkDevice *device) +{ + RASSERT(device && device->logical_device, "Invalid or uninitialized device."); + + vkDeviceWaitIdle(device->logical_device); // safe when destroying device + vkDestroyDevice(device->logical_device, vk_allocator); + if (device->swapchain_support.format) rfree(vk_device.swapchain_support.format); + if (device->swapchain_support.present_modes) rfree(vk_device.swapchain_support.present_modes); + + *device = (RendVkDevice){0}; +} + +static void +rend_vk_device_query_swapchain_support(RendVkDevice *device) +{ + RASSERT(device->physical_device, "Invalid device pointer."); + + /* surface capabilities */ + CHECK_VK_RESULT(vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device->physical_device, device->surface, &device->swapchain_support.capabilities)); + + /* surface formats */ + CHECK_VK_RESULT(vkGetPhysicalDeviceSurfaceFormatsKHR(device->physical_device, device->surface, &device->swapchain_support.format_count, VK_NULL_HANDLE)); + if (device->swapchain_support.format_count != 0) { + if (!device->swapchain_support.format) { + device->swapchain_support.format = rmalloc(device->swapchain_support.format_count * sizeof(*device->swapchain_support.format)); + } + CHECK_VK_RESULT(vkGetPhysicalDeviceSurfaceFormatsKHR(device->physical_device, device->surface, &device->swapchain_support.format_count, device->swapchain_support.format)); + } + + /* present modes */ + CHECK_VK_RESULT(vkGetPhysicalDeviceSurfacePresentModesKHR(device->physical_device, device->surface, &device->swapchain_support.present_mode_count, VK_NULL_HANDLE)); + if (device->swapchain_support.present_mode_count != 0) { + if (!device->swapchain_support.present_modes) { + device->swapchain_support.present_modes = rmalloc(device->swapchain_support.present_mode_count * sizeof(*device->swapchain_support.present_modes)); + } + CHECK_VK_RESULT(vkGetPhysicalDeviceSurfacePresentModesKHR(device->physical_device, device->surface, &device->swapchain_support.present_mode_count, device->swapchain_support.present_modes)); + } +} + +static bool +rend_vk_device_detect_depth_format(RendVkDevice *device) +{ + const uint64_t candidate_count = 3; + VkFormat candidates[] = {VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT}; + + uint32_t flags = VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT; + for (uint32_t i = 0; i < candidate_count; i++) { + VkFormatProperties properties; + vkGetPhysicalDeviceFormatProperties(device->physical_device, candidates[i], &properties); + if ((properties.linearTilingFeatures & flags) == flags) { + device->depth_format = candidates[i]; + return true; + } else if ((properties.optimalTilingFeatures & flags) == flags) { + device->depth_format = candidates[i]; + return true; + } + } + + return false; +} + +static uint32_t +rend_vk_device_score_default(RendVkDevice *device, RendSpecs minimum_specs, char **required_extensions) +{ + /* NOTE: When we score the device we will also check for specs. Not meeting a spec + * leads to 0 score and continue. We will assume device already contains some information + * about properties when this function is called. */ + + uint32_t score = 0; + + device->graphics_family_index = UINT32_MAX; + device->present_family_index = UINT32_MAX; + device->compute_family_index = UINT32_MAX; + device->transfer_family_index = UINT32_MAX; + + if (minimum_specs.discrete_gpu) { + if (device->properties.deviceType != VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) { + return 0; + } + } + + uint32_t q_family_count = 0; + vkGetPhysicalDeviceQueueFamilyProperties(device->physical_device, &q_family_count, VK_NULL_HANDLE); + + VkQueueFamilyProperties q_family[q_family_count]; + vkGetPhysicalDeviceQueueFamilyProperties(device->physical_device, &q_family_count, q_family); + + uint8_t min_transfer_score = 255; + for (uint32_t i = 0; i < q_family_count; i++) { + + uint8_t transfer_score = 0; + if (q_family[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) { + device->graphics_family_index = i; + transfer_score++; + } + + if (q_family[i].queueFlags & VK_QUEUE_COMPUTE_BIT) { + device->compute_family_index = i; + transfer_score++; + } + + if (q_family[i].queueFlags & VK_QUEUE_TRANSFER_BIT) { + // take the index if the transfer score is minimal + if (transfer_score <= min_transfer_score) { + min_transfer_score = transfer_score; + device->transfer_family_index = i; + } + } + + VkBool32 supports_present = VK_FALSE; + CHECK_VK_RESULT(vkGetPhysicalDeviceSurfaceSupportKHR(device->physical_device, i, device->surface, &supports_present)); + if (supports_present) { + device->present_family_index = i; + } + } + + if ( (minimum_specs.graphics && device->graphics_family_index == UINT32_MAX) || + (minimum_specs.present && device->present_family_index == UINT32_MAX) || + (minimum_specs.compute && device->compute_family_index == UINT32_MAX) || + (minimum_specs.transfer && device->transfer_family_index == UINT32_MAX)) { + return 0; + } + + // swapchain support + rend_vk_device_query_swapchain_support(device); + + if (device->swapchain_support.format_count < 1 || device->swapchain_support.present_mode_count < 1) { + return 0; + } + + // check for extension specs + if (required_extensions) { + uint32_t available_extentions_count = 0; + VkExtensionProperties *available_extentions = NULL; + CHECK_VK_RESULT(vkEnumerateDeviceExtensionProperties(device->physical_device, VK_NULL_HANDLE, &available_extentions_count, VK_NULL_HANDLE)); + + if (available_extentions_count != 0) { + + available_extentions = rmalloc(available_extentions_count * sizeof(*available_extentions)); + CHECK_VK_RESULT(vkEnumerateDeviceExtensionProperties(device->physical_device, VK_NULL_HANDLE, &available_extentions_count, available_extentions)); + + uint32_t required_extention_count = p_darray_len(required_extensions); + + bool overall_found = true; + for (uint32_t i = 0; i < required_extention_count; ++i) { + bool found = false; + for (uint32_t j = 0; j < available_extentions_count; ++j) { + if (strcmp(required_extensions[i], available_extentions[j].extensionName) == 0) { + found = true; + break; + } + } + if (!found) { + overall_found = false; + break; + } + } + + rfree(available_extentions); + if (!overall_found) { + return 0; + } + } + } + + if (minimum_specs.sampler_anisotropy && !device->features.samplerAnisotropy) { + return 0; + } + + score = 10; + if (device->properties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) { + score += 1000; + } + + return score; +} diff --git a/Rend/rend_vk_image.c b/Rend/rend_vk_image.c new file mode 100644 index 0000000..e842bf0 --- /dev/null +++ b/Rend/rend_vk_image.c @@ -0,0 +1,125 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + +struct RendVkImage { + VkDevice logical_device; + VkImage handle; + VkImageView view; + + VkMemoryRequirements requirements; + + VkImageType img_type; + uint32_t width, height; + VkFormat format; + VkImageTiling tiling; + VkImageUsageFlags usage; + uint32_t depth; + uint32_t mip_levels; + uint32_t layers; + VkSampleCountFlags sample_count_flags; + VkSharingMode sharing_mode; + + RendMemory *memory; +}; + +static RendVkImage +rend_vk_image_create(VkDevice logical_device, VkImageType img_type, uint32_t width, uint32_t height, VkFormat format, VkImageTiling tiling, + VkImageUsageFlags usage, VkMemoryPropertyFlags memory_flags, uint32_t depth, uint32_t mip_levels, uint32_t layers, + VkSampleCountFlags sample_count_flags, VkSharingMode sharing_mode) +{ + RendVkImage image = { + .handle = VK_NULL_HANDLE, + .memory = VK_NULL_HANDLE, + .logical_device = logical_device, + .img_type = img_type, + .width = width, + .height = height, + .format = format, + .tiling = tiling, + .usage = usage, + .depth = depth, + .mip_levels = mip_levels, + .layers = layers, + .sample_count_flags = sample_count_flags, + .sharing_mode = sharing_mode + }; + + VkImageCreateInfo img_create_info = {VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO}; + img_create_info.imageType = img_type; + img_create_info.extent.width = width; + img_create_info.extent.height = height; + img_create_info.extent.depth = depth; + img_create_info.mipLevels = mip_levels; + img_create_info.arrayLayers = layers; + img_create_info.format = format; + img_create_info.tiling = tiling; + img_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + img_create_info.usage = usage; + img_create_info.samples = sample_count_flags; + img_create_info.sharingMode = sharing_mode; + + + if (vkCreateImage(logical_device, &img_create_info, vk_allocator, &image.handle) != VK_SUCCESS) { + return image; + } + + return image; +} + +static uint32_t +rend_vk_image_required_memory_type(RendVkImage *img) +{ + assert(img->memory == NULL && "Image already bound to memory"); + VkMemoryRequirements memory_requirements = {0}; + vkGetImageMemoryRequirements(img->logical_device, img->handle, &memory_requirements); + img->requirements = memory_requirements; + return memory_requirements.memoryTypeBits; +} + +static void +rend_vk_image_bind_memory(RendVkImage *img, RendMemory *memory) +{ + assert(img->memory == NULL && "Image already bound to memory"); + vkBindImageMemory(img->logical_device, img->handle, (VkDeviceMemory) memory->device_memory, memory->offset); +} + +static void +rend_vk_image_destroy(RendVkImage *img) +{ + if (img->view) { + vkDestroyImageView(img->logical_device, img->view, vk_allocator); + img->view = 0; + } + + if (img->handle) { + vkDestroyImage(img->logical_device, img->handle, vk_allocator); + img->handle = 0; + } +} + +static void +rend_vk_image_view_create(RendVkImage *image, VkImageViewType view_type, VkImageAspectFlags view_aspect_flags) +{ + VkImageViewCreateInfo view_create_info = { + .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, + .image = image->handle, + .format = image->format, + .viewType = view_type, + .subresourceRange.aspectMask = view_aspect_flags, + .subresourceRange.baseMipLevel = 0, // offset starts at 0 + .subresourceRange.levelCount = image->mip_levels, // number of mips + .subresourceRange.baseArrayLayer = 0, // offset starts at 0 + .subresourceRange.layerCount = image->layers, // number of layers + }; + + vkCreateImageView(image->logical_device, &view_create_info, vk_allocator, &image->view); +} + +static uint64_t +rend_vk_image_address(RendVkImage *image) +{ + assert(image->memory == NULL && "Image already bound to memory"); + return (uint64_t) image->memory->device_memory + image->memory->offset; +} diff --git a/Rend/rend_vk_internal.h b/Rend/rend_vk_internal.h new file mode 100644 index 0000000..5039c61 --- /dev/null +++ b/Rend/rend_vk_internal.h @@ -0,0 +1,177 @@ +#ifndef REND_VK_INTERNAL_H +#define REND_VK_INTERNAL_H + +#include <vulkan/vulkan.h> +#include <vulkan/vulkan_core.h> +#include <assert.h> + +#define CHECK_VK_RESULT(r) \ +{ \ + assert(r == VK_SUCCESS && __LINE__); \ +} + + +typedef struct RendVkImage RendVkImage; +typedef struct RendVkArenaAllocator RendVkArenaAllocator; +typedef struct RendVkSbta RendVkSbta; + +typedef struct RendVkPendingCmd RendVkPendingCmd; +typedef struct RendVkDeferredCmds RendVkDeferredCmds; + +typedef struct { + const char **extention_names_darray; + bool sampler_anisotropy; + bool discrete_gpu; + bool graphics; + bool present; + bool compute; + bool transfer; +} RendVkDevicespecs; + +typedef struct { + uint32_t graphics_family_index; + uint32_t present_family_index; + uint32_t compute_family_index; + uint32_t transfer_family_index; +} RendVkQueueFamily; + +typedef struct { + VkSurfaceCapabilitiesKHR capabilities; + VkSurfaceFormatKHR *format; + VkPresentModeKHR *present_modes; + uint32_t format_count; + uint32_t present_mode_count; +} RendVkSwapchainSupport; + +typedef struct { + /* logical device handle */ + VkDevice logical_device; + + /* physical device limitation */ + VkPhysicalDeviceProperties properties; + VkPhysicalDeviceMemoryProperties memory; + VkPhysicalDevice physical_device; + VkPhysicalDeviceFeatures features; + VkPhysicalDeviceDescriptorBufferPropertiesEXT desc_props; + + /* swapchain support */ + VkSurfaceKHR surface; + RendVkSwapchainSupport swapchain_support; + VkFormat depth_format; + + /* queues */ + VkQueue graphics_queue; + VkQueue present_queue; + VkQueue compute_queue; + VkQueue transfer_queue; + uint32_t graphics_family_index; + uint32_t present_family_index; + uint32_t compute_family_index; + uint32_t transfer_family_index; + + /* memory heap indices */ + uint32_t host_index; + uint32_t device_index; +} RendVkDevice; + +static VkInstance vk_instance = 0; +static VkDebugUtilsMessengerEXT vk_debug_messenger = 0; +static RendVkDevice vk_device = {0}; + +/* helper functions */ +static int32_t rend_vk_memory_find_index(VkPhysicalDevice device, uint32_t type_filter, VkMemoryPropertyFlags property_flags); + +/* rend_vk_device.c */ +static bool rend_vk_device_create(VkSurfaceKHR surface, RendSpecs specs, RendVkDevice *out_device, uint32_t (*score_devices)(RendVkDevice *, RendSpecs, char **)); +static uint32_t rend_vk_device_score_default(RendVkDevice *device, RendSpecs minimum_specs, char **required_extensions); +static void rend_vk_physical_device_query_swapchain_support(RendVkDevice *device); +static bool rend_vk_device_detect_depth_format(RendVkDevice *device); +static void rend_vk_device_destroy(RendVkDevice *device); + +/* rend_vk_arena.c */ +static RendVkArenaAllocator rend_vk_arena_create(VkDevice logical_device, VkPhysicalDevice physical_device, VkPhysicalDeviceLimits device_limits, VkAllocationCallbacks *allocator); +static uint32_t rend_vk_arena_add_page(RendVkArenaAllocator *arena, VkDeviceSize size, uint32_t heap_index, bool fit_to_alloc); +static RendMemory rend_vk_arena_alloc(RendVkArenaAllocator *arena, VkDeviceSize size, uint32_t heap_index); +static void rend_vk_arena_clear(RendVkArenaAllocator *arena, uint32_t memory_type); +static void rend_vk_arena_clear_all(RendVkArenaAllocator *arena); +static void rend_vk_arena_shrink(RendVkArenaAllocator *arena, uint32_t memory_type); +static void rend_vk_arena_destroy(RendVkArenaAllocator *arena); + +/* rend_vk_command_queue.c */ +static inline RendVkDeferredCmds rend_vk_cmdbuf_deferred_create(void); +static inline void rend_vk_cmdbuf_deferred_destroy(RendVkDeferredCmds *tracker); +static inline uint64_t rend_vk_cmdbuf_deferred_submit(RendVkDeferredCmds *tracker, VkCommandPool pool, VkCommandBuffer cmd, VkQueue queue, uint64_t wait_value, VkPipelineStageFlags2 wait_stage, VkPipelineStageFlags2 signal_stage); +static inline void rend_vk_cmdbuf_deferred_push(RendVkDeferredCmds *tracker, VkCommandPool pool, VkCommandBuffer cmd, uint64_t wait_value); +static inline void rend_vk_cmdbuf_deferred_flush(RendVkDeferredCmds *tracker); + +/* rend_vk_image.c */ +static RendVkImage rend_vk_image_create(VkDevice logical_device, VkImageType img_type, uint32_t width, uint32_t height, VkFormat format, VkImageTiling tiling, VkImageUsageFlags usage, VkMemoryPropertyFlags memory_flags, uint32_t depth, uint32_t mip_levels, uint32_t layers, VkSampleCountFlags sample_count_flags, VkSharingMode sharing_mode); +static uint32_t rend_vk_image_required_memory_type(RendVkImage *img); +static void rend_vk_image_bind_memory(RendVkImage *image, RendMemory *memory); +static void rend_vk_image_destroy(RendVkImage *img); +static void rend_vk_image_view_create(RendVkImage *image, VkImageViewType view_type, VkImageAspectFlags view_aspect_flags); +static uint64_t rend_vk_image_address(RendVkImage *image); + + +static VkAllocationCallbacks *vk_allocator = 0; // we are only ever going to use one, either the default one or the custom one + +static VkFormat vk_format_from_rend_format[] = { + [REND_FORMAT_R8_UNORM] = VK_FORMAT_R8_UNORM, + [REND_FORMAT_R8G8_UNORM] = VK_FORMAT_R8G8_UNORM, + [REND_FORMAT_R8G8B8A8_UNORM] = VK_FORMAT_R8G8B8A8_UNORM, + [REND_FORMAT_B8G8R8A8_UNORM] = VK_FORMAT_B8G8R8A8_UNORM, + [REND_FORMAT_R8G8B8A8_SRGB] = VK_FORMAT_R8G8B8A8_SRGB, + [REND_FORMAT_B8G8R8A8_SRGB] = VK_FORMAT_B8G8R8A8_SRGB, + [REND_FORMAT_R32_SFLOAT] = VK_FORMAT_R32_SFLOAT, + [REND_FORMAT_R32G32_SFLOAT] = VK_FORMAT_R32G32_SFLOAT, + [REND_FORMAT_R32G32B32_SFLOAT] = VK_FORMAT_R32G32B32_SFLOAT, + [REND_FORMAT_R32G32B32A32_SFLOAT]= VK_FORMAT_R32G32B32A32_SFLOAT, + [REND_FORMAT_R16_SFLOAT] = VK_FORMAT_R16_SFLOAT, + [REND_FORMAT_R16G16_SFLOAT] = VK_FORMAT_R16G16_SFLOAT, + [REND_FORMAT_R16G16B16A16_SFLOAT]= VK_FORMAT_R16G16B16A16_SFLOAT, + [REND_FORMAT_R32_UINT] = VK_FORMAT_R32_UINT, + [REND_FORMAT_R32_SINT] = VK_FORMAT_R32_SINT, + [REND_FORMAT_R32G32B32A32_UINT] = VK_FORMAT_R32G32B32A32_UINT, + [REND_FORMAT_R16G16B16A16_UINT] = VK_FORMAT_R16G16B16A16_UINT, + [REND_FORMAT_R8G8B8A8_UINT] = VK_FORMAT_R8G8B8A8_UINT, + [REND_FORMAT_D32_SFLOAT] = VK_FORMAT_D32_SFLOAT, + [REND_FORMAT_D24_UNORM_S8_UINT] = VK_FORMAT_D24_UNORM_S8_UINT, + [REND_FORMAT_D32_SFLOAT_S8_UINT] = VK_FORMAT_D32_SFLOAT_S8_UINT, +}; + +static VkPrimitiveTopology vk_topology[] = { + [REND_TOPOLOGY_TRIANGLE_LIST] = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, + [REND_TOPOLOGY_TRIANGLE_STRIP] = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP, + [REND_TOPOLOGY_LINE_LIST] = VK_PRIMITIVE_TOPOLOGY_LINE_LIST, + [REND_TOPOLOGY_LINE_STRIP] = VK_PRIMITIVE_TOPOLOGY_LINE_STRIP, + [REND_TOPOLOGY_POINT_LIST] = VK_PRIMITIVE_TOPOLOGY_POINT_LIST +}; + +static VkPolygonMode vk_polymode[] = { + [REND_POLYGON_MODE_FILL] = VK_POLYGON_MODE_FILL, + [REND_POLYGON_MODE_LINE] = VK_POLYGON_MODE_LINE, + [REND_POLYGON_MODE_POINT] = VK_POLYGON_MODE_POINT, +}; + +static VkCullModeFlags vk_cullflags[] = { + [REND_CULL_MODE_NONE] = VK_CULL_MODE_NONE, + [REND_CULL_MODE_FRONT] = VK_CULL_MODE_FRONT_BIT, + [REND_CULL_MODE_BACK] = VK_CULL_MODE_BACK_BIT, + [REND_CULL_MODE_FRONT_AND_BACK] = VK_CULL_MODE_FRONT_AND_BACK, +}; + +static int32_t +rend_vk_memory_find_index(VkPhysicalDevice device, uint32_t type_filter, VkMemoryPropertyFlags property_flags) +{ + VkPhysicalDeviceMemoryProperties memory_properties; + vkGetPhysicalDeviceMemoryProperties(device, &memory_properties); + for (uint32_t i = 0; i < memory_properties.memoryTypeCount; i++) { + if (type_filter & (1 << i) && (memory_properties.memoryTypes[i].propertyFlags & property_flags) == property_flags) { + return i; + } + } + + return -1; +} + +#endif diff --git a/Rend/unused code/rend_vk_buffer.c b/Rend/unused code/rend_vk_buffer.c new file mode 100644 index 0000000..37f3e06 --- /dev/null +++ b/Rend/unused code/rend_vk_buffer.c @@ -0,0 +1,116 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + +#if 0 +static RendBuffer +rend_vk_buffer_create(VkDevice logical_device, VkAllocationCallbacks *allocator, VkDeviceSize size, VkBufferUsageFlags usage, uint32_t *family_indices, uint32_t family_indices_count) +{ + RendBuffer buffer = { + .handle = 0, + .logical_device = logical_device, + .memory = NULL, + .allocator = allocator, + .usage = usage | VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT, + }; + + VkBufferCreateInfo buffer_info = { + .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO, + .size = size, + .usage = usage, + .sharingMode = (family_indices_count > 1) ? VK_SHARING_MODE_CONCURRENT : VK_SHARING_MODE_EXCLUSIVE, + .queueFamilyIndexCount = family_indices_count, + .pQueueFamilyIndices = family_indices + }; + + vkCreateBuffer(logical_device, &buffer_info, allocator, &buffer.handle); + return buffer; +} + +static uint32_t +rend_vk_buffer_required_memory_type(RendBuffer *buffer) +{ + assert(buffer->memory == NULL && "Buffer already bound to memory"); + VkMemoryRequirements mem_requirements; + vkGetBufferMemoryRequirements(buffer->logical_device, buffer->handle, &mem_requirements); + return mem_requirements.memoryTypeBits; +} + +static void +rend_vk_buffer_bind_memory(RendBuffer *buffer, RendVkMemory *memory) +{ + assert(buffer->memory == NULL && "Buffer already bound to memory"); + vkBindBufferMemory(buffer->logical_device, buffer->handle, memory->device_memory, 0); + buffer->memory = memory; +} + +static void +rend_vk_buffer_destroy(RendBuffer *buffer) +{ + assert(buffer && buffer->handle != 0); + vkDestroyBuffer(buffer->logical_device, buffer->handle, buffer->allocator); + buffer->handle = 0; + buffer->memory = 0; +} + +static void +rend_vk_buffer_copy_device(VkQueue queue, VkCommandPool pool, RendBuffer *dest, size_t dest_offset, size_t bytes, RendBuffer *src, size_t src_offset, VkFence fence) +{ + assert(src && dest); // check that im not sending null pointers + assert(src->usage & VK_BUFFER_USAGE_TRANSFER_SRC_BIT); // source buffer must be marked as transfer src + assert(dest->usage & VK_BUFFER_USAGE_TRANSFER_DST_BIT); // dest buffer must be marked as transfer dest + + VkCommandBuffer transfer_cmd = VK_NULL_HANDLE; + + VkCommandBufferAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, + .commandBufferCount = 1, + .commandPool = pool, + .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY, + .pNext = NULL, + }; + + vkAllocateCommandBuffers(dest->logical_device, &alloc_info, &transfer_cmd); + + VkCommandBufferBeginInfo begin_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, + .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT, + }; + vkBeginCommandBuffer(transfer_cmd, &begin_info); + + VkBufferCopy buffer_copy = { + .srcOffset = (VkDeviceSize)src_offset, + .dstOffset = (VkDeviceSize)dest_offset, + .size = (VkDeviceSize)bytes, + }; + + vkCmdCopyBuffer(transfer_cmd, src->handle, dest->handle, 1, &buffer_copy); + vkEndCommandBuffer(transfer_cmd); + + VkCommandBufferSubmitInfo cmd_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_SUBMIT_INFO, + .commandBuffer = transfer_cmd, + .deviceMask = 0, + }; + + VkSubmitInfo2 submit_info = { + .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO_2, + .commandBufferInfoCount = 1, + .pCommandBufferInfos = &cmd_info, + }; + + vkQueueSubmit2(queue, 1, &submit_info, fence); + vkQueueWaitIdle(queue); + vkFreeCommandBuffers(dest->logical_device, pool, 1, &transfer_cmd); +} + +static uint64_t +rend_vk_buffer_address(RendBuffer *buffer, VkDevice device) +{ + VkBufferDeviceAddressInfoKHR address_info = {VK_STRUCTURE_TYPE_BUFFER_DEVICE_ADDRESS_INFO_KHR}; + address_info.buffer = buffer->handle; + VkDeviceAddress address = vkGetBufferDeviceAddress(device, &address_info); + return (uint64_t) address; +} +#endif diff --git a/Rend/unused code/rend_vk_command_queue.c b/Rend/unused code/rend_vk_command_queue.c new file mode 100644 index 0000000..1ddd780 --- /dev/null +++ b/Rend/unused code/rend_vk_command_queue.c @@ -0,0 +1,153 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> +#include <stdatomic.h> +#include <stdlib.h> + +/* DEFERRED COMMANDS: + * Tracks single-use command buffers submitted for async GPU work, + * so callers don't have to block (vkQueueWaitIdle) to know when it's + * safe to free/reset them. One shared timeline semaphore; every + * submission claims the next monotonic value. + */ + +struct RendVkPendingCmd { + VkCommandPool pool; + VkCommandBuffer cmd; + uint64_t wait_value; +}; + +struct RendVkDeferredCmds { + VkSemaphore timeline; + RendVkPendingCmd *darray; + size_t count; + size_t capacity; +}; + +#define RENDER_VK_DEFERRED_CMDS_INITIAL_CAPACITY 16 + +static inline RendVkDeferredCmds +rend_vk_cmdbuf_deferred_create(void) +{ + RendVkDeferredCmds tracker = {0}; + + VkSemaphoreTypeCreateInfo type_info = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO, + .semaphoreType = VK_SEMAPHORE_TYPE_TIMELINE, + .initialValue = 0, + }; + VkSemaphoreCreateInfo sem_info = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO, + .pNext = &type_info, + }; + vkCreateSemaphore(vk_device.logical_device, &sem_info, vk_allocator, &tracker.timeline); + + tracker.capacity = RENDER_VK_DEFERRED_CMDS_INITIAL_CAPACITY; + tracker.darray = rmalloc(sizeof(RendVkPendingCmd) * tracker.capacity); + tracker.count = 0; + + return tracker; +} + +static inline void +rend_vk_cmdbuf_deferred_destroy(RendVkDeferredCmds *tracker) +{ + vkDestroySemaphore(vk_device.logical_device, tracker->timeline, vk_allocator); + rfree(tracker->darray); + *tracker = (RendVkDeferredCmds) {0}; +} + +static inline void rend_vk_cmdbuf_deferred_lock(RendVkDeferredCmds *t) { (void)t; } +static inline void rend_vk_cmdbuf_deferred_unlock(RendVkDeferredCmds *t) { (void)t; } + +static inline VkCommandBuffer +rend_vk_cmdbuf_deferred_begin(VkCommandPool pool) +{ + VkCommandBufferAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, + .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY, + .commandPool = pool, + .commandBufferCount = 1, + }; + + VkCommandBuffer cmd; + vkAllocateCommandBuffers(vk_device.logical_device, &alloc_info, &cmd); + + VkCommandBufferBeginInfo begin = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, + .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT, + }; + + vkBeginCommandBuffer(cmd, &begin); + return cmd; +} + +static inline void +rend_vk_cmdbuf_deferred_push(RendVkDeferredCmds *tracker, VkCommandPool pool, VkCommandBuffer cmd, uint64_t wait_value) +{ + rend_vk_cmdbuf_deferred_lock(tracker); + if (tracker->count == tracker->capacity) { + tracker->capacity *= 2; + tracker->darray = realloc(tracker->darray, sizeof(RendVkPendingCmd) * tracker->capacity); + } + tracker->darray[tracker->count++] = (RendVkPendingCmd) { + .pool = pool, + .cmd = cmd, + .wait_value = wait_value, + }; + rend_vk_cmdbuf_deferred_unlock(tracker); +} + +static inline uint64_t +rend_vk_cmdbuf_deferred_submit(RendVkDeferredCmds *tracker, VkCommandPool pool, VkCommandBuffer cmd, VkQueue queue, uint64_t wait_value, VkPipelineStageFlags2 wait_stage, VkPipelineStageFlags2 signal_stage) +{ + uint64_t signal_value = wait_value + 1; + + VkCommandBufferSubmitInfo cmd_info = { + .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_SUBMIT_INFO, + .commandBuffer = cmd, + }; + VkSemaphoreSubmitInfo wait_info = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO, + .semaphore = tracker->timeline, + .value = wait_value, + .stageMask = wait_stage, + }; + VkSemaphoreSubmitInfo signal_info = { + .sType = VK_STRUCTURE_TYPE_SEMAPHORE_SUBMIT_INFO, + .semaphore = tracker->timeline, + .value = signal_value, + .stageMask = signal_stage, + }; + VkSubmitInfo2 submit = { + .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO_2, + .waitSemaphoreInfoCount = wait_value ? 1 : 0, + .pWaitSemaphoreInfos = &wait_info, + .commandBufferInfoCount = 1, + .pCommandBufferInfos = &cmd_info, + .signalSemaphoreInfoCount = 1, + .pSignalSemaphoreInfos = &signal_info, + }; + + vkQueueSubmit2(queue, 1, &submit, VK_NULL_HANDLE); + + rend_vk_cmdbuf_deferred_push(tracker, pool, cmd, signal_value); + return signal_value; +} + +static inline void +rend_vk_cmdbuf_deferred_flush(RendVkDeferredCmds *tracker) +{ + uint64_t completed; + vkGetSemaphoreCounterValue(vk_device.logical_device, tracker->timeline, &completed); + + for (size_t i = 0; i < tracker->count; ) { + if (completed >= tracker->darray[i].wait_value) { + vkFreeCommandBuffers(vk_device.logical_device, tracker->darray[i].pool, 1, &tracker->darray[i].cmd); + tracker->darray[i] = tracker->darray[--tracker->count]; + } else { + i++; + } + } +} diff --git a/Rend/unused code/rend_vk_memory.c b/Rend/unused code/rend_vk_memory.c new file mode 100644 index 0000000..4782b46 --- /dev/null +++ b/Rend/unused code/rend_vk_memory.c @@ -0,0 +1,100 @@ +#pragma once + +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + + +#if 0 +static RendVkMemory +rend_vk_memory_malloc(size_t size, VkDevice logical_device, VkPhysicalDevice physical_device, uint32_t heap_index, VkAllocationCallbacks *allocator) +{ + RendVkMemory memory = { + .host_mapped_memory = NULL, + .device_memory = 0, + .logical_device = logical_device, + .heap_index = heap_index + }; + + VkMemoryAllocateFlagsInfo flags_info = { + .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO, + .pNext = NULL, + .flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT, /* REQUIRED for BDA buffers */ + .deviceMask = 0 + }; + + VkMemoryAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, + .allocationSize = size, + .pNext = &flags_info, + .memoryTypeIndex = heap_index + }; + + vkAllocateMemory(logical_device, &alloc_info, allocator, &memory.device_memory); + return memory; +} + +static void +rend_vk_memory_free(RendVkMemory *memory) +{ + if (memory->host_mapped_memory) { + rend_vk_memory_unmap(memory); + } + if (memory->offset == 0) { + vkFreeMemory(memory->logical_device, memory->device_memory, memory->allocator); + memset(memory, 0, sizeof *memory); + } else { + PWARN("[REND_VK] Attempted to free memory with an offset!"); + } +} + +static void* +rend_vk_memory_map(RendVkMemory *memory) +{ + // SPEC: memory must have been created with a memory type that reports VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT + // vkMapMemory will fail if the implementation is unable to allocate an appropriately sized contiguous virtual address range, + // e.g. due to virtual address space fragmentation or platform limits. + // In such cases, vkMapMemory must return VK_ERROR_MEMORY_MAP_FAILED. + // The application can improve the likelihood of success by reducing the size of the mapped range and/or removing unneeded mappings using vkUnmapMemory. + + vkMapMemory(memory->logical_device, memory->device_memory, memory->offset, memory->size, 0, &memory->host_mapped_memory); + return memory->host_mapped_memory; +} + +static void +rend_vk_memory_unmap(RendVkMemory *memory) +{ + if (memory->offset == 0) { + vkUnmapMemory(memory->logical_device, memory->device_memory); + memory->host_mapped_memory = 0; + } else { + PWARN("[REND_VK] Attempted to unmap memory with an offset!"); + } +} + +static void +rend_vk_memory_copy(RendVkMemory *memory, size_t offset, const void *data, size_t size) +{ + /* bounds check */ + if (offset + size > memory->size) { + REND__WARN("Memory write out of bounds!"); + return; + } + + /* important to cast this */ + uint8_t *dest = memory->host_mapped_memory; + memcpy(dest + offset, data, size); + + /* flush host writes if memory is non-coherent */ + // VkMappedMemoryRange range = { + // .sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, + // .memory = memory->device_memory, + // .offset = offset, + // .size = size + // }; + // + // vkFlushMappedMemoryRanges(memory->logical_device, 1, &range); + +} + +#endif diff --git a/Rend/unused code/rend_vk_pool.c b/Rend/unused code/rend_vk_pool.c new file mode 100644 index 0000000..e527354 --- /dev/null +++ b/Rend/unused code/rend_vk_pool.c @@ -0,0 +1,221 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + +/* NOTE(vasco): + * Check out https://kylehalladay.com/blog/tutorial/2017/12/13/Custom-Allocators-Vulkan.html + * for a basic grasp on what it entails to actually write a memory allocator for vulkan. + * + * This allocator isnt anything particularly amazing but it works so I'm keeping this code. + * Based on the framework presented here we could implement other more efficient allocators. + * Which is what I did for the arena allocator. + */ + +#if 0 +typedef struct RendVkAddress { + VkDeviceMemory handle; + uint32_t type; + uint32_t id; + VkDeviceSize size; + VkDeviceSize offset; +} RendVkAddress; + +typedef struct RendVkPoolLayout { + uint64_t offset, size; +} RendVkPoolLayout; + +typedef struct RendVKPoolBlock { + RendVkAddress address; + RendVkPoolLayout *layout_darr; + uint8_t reserved; +} RendVKPoolBlock; + +typedef struct RendVkPoolMemory { + RendVKPoolBlock *block_darr; +} RendVkPoolMemory; + +struct RendVkPoolAllocator { + VkAllocationCallbacks *allocator; + size_t *mem_type_alloc_sizes; // allocation size per type of memory available on the gpu + RendVkPoolMemory *mem_pools; // memory pools per type of memory available on the gpu + VkDevice logical_device; // virtual device + VkPhysicalDevice physical_device; // physical device we are allocating memory from + VkDeviceSize page_size; // allocations must respect the physical limitations of the gpu + VkDeviceSize block_min_size; // minimum size per block of memory + uint64_t total_allocations; + uint32_t memory_type_count; +}; + +static RendVkPoolAllocator +rend_vk_pool_create(VkDevice logical_device, VkPhysicalDevice physical_device, VkPhysicalDeviceLimits device_limits, VkAllocationCallbacks *allocator) +{ + RendVkPoolAllocator pool = { + .allocator = allocator, + .mem_type_alloc_sizes = NULL, + .mem_pools = NULL, + .logical_device = logical_device, + .physical_device = physical_device, + .page_size = 0, + .block_min_size = 0, + .total_allocations = 0, + .memory_type_count = 0, + }; + + VkPhysicalDeviceMemoryProperties mem_properties; + vkGetPhysicalDeviceMemoryProperties(physical_device, &mem_properties); + + pool.mem_type_alloc_sizes = malloc(mem_properties.memoryTypeCount * sizeof *pool.mem_type_alloc_sizes); + memset(pool.mem_type_alloc_sizes, 0, mem_properties.memoryTypeCount * sizeof *pool.mem_type_alloc_sizes); + + pool.mem_pools = malloc(mem_properties.memoryTypeCount * sizeof *pool.mem_pools); + memset(pool.mem_pools, 0, mem_properties.memoryTypeCount * sizeof *pool.mem_pools); + + pool.memory_type_count = mem_properties.memoryTypeCount; + pool.page_size = device_limits.bufferImageGranularity; + pool.block_min_size = pool.page_size * 10; + + return pool; +} + +static uint32_t +rend_vk_pool_add_block(RendVkPoolAllocator *pool, VkDeviceSize size, uint32_t memory_type, VkMemoryPropertyFlags properties, bool fit_to_alloc) +{ + VkDeviceSize new_pool_size = size * 2; + new_pool_size = (new_pool_size < pool->block_min_size) ? pool->block_min_size : new_pool_size; + + VkMemoryAllocateInfo alloc_info = { + .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, + .allocationSize = new_pool_size, + .memoryTypeIndex = rend_vk_memory_find_index(pool->physical_device, memory_type, properties) + }; + + RendVKPoolBlock block = {0}; + VkResult res = vkAllocateMemory(pool->logical_device, &alloc_info, pool->allocator, &block.address.handle); + block.address.type = memory_type; + block.address.size = new_pool_size; + + RendVkPoolMemory *mem_pool = &pool->mem_pools[memory_type]; + p_darray_push(mem_pool->block_darr, block); + + RendVkPoolLayout layout = { + .offset = 0, + .size = new_pool_size + }; + p_darray_push(mem_pool->block_darr[pool_size - 1].layout_darr, layout); + + pool->total_allocations++; + + size_t pool_size = p_darray_len(mem_pool->block_darr); + return pool_size - 1; +} + +static RendVkMemory +rend_vk_pool_alloc(RendVkPoolAllocator *pool, VkDeviceSize size, uint32_t usage, uint32_t memory_type, VkMemoryPropertyFlags properties) +{ + RendVkPoolMemory *mem_pool = &pool->mem_pools[memory_type]; + + VkDeviceSize requested_alloc_size = ((size / pool->page_size) + 1) * pool->page_size; + pool->mem_type_alloc_sizes[memory_type] += requested_alloc_size; + + /* find free chunk for allocation + * TODO: free list? + */ + int whole_page = usage != VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + uint64_t block_idx = UINT64_MAX; + uint64_t span_idx = UINT64_MAX; + for (uint32_t i = 0; i < p_darray_len(mem_pool->block_darr); ++i) { + for (uint32_t j = 0; j < p_darray_len(mem_pool->block_darr[i].layout_darr); ++j) { + int valid = (whole_page) ? mem_pool->block_darr[i].layout_darr[j].offset == 0 : 1; + if (mem_pool->block_darr[i].layout_darr[j].size >= size && valid) { + block_idx = i; + span_idx = j; + } + } + } + + if (block_idx == UINT64_MAX || span_idx == UINT64_MAX) { + block_idx = rend_vk_pool_add_block(pool, size, memory_type, properites, whole_page); + span_idx = 0; + } + + mem_pool->block_darr[block_idx].reserved = whole_page; + + RendVkMemory memory = { + .device_memory = mem_pool->block_darr[block_idx].address.handle, + .size = size, + .offset = mem_pool->block_darr[block_idx].layout_darr[span_idx].offset, + .type = memory_type, + + .logical_device = pool->logical_device, + .allocator = pool->allocator, + .host_mapped_memory = 0, + .physical_device = pool->physical_device, + .properties = properties, + + .id = block_idx, + }; + + /* mark chunck */ + mem_pool->block_darr[block_idx].layout_darr[span_idx].offset += size; + mem_pool->block_darr[block_idx].layout_darr[span_idx].size -= size; + return memory; +} + + +static void +rend_vk_pool_free(RendVkPoolAllocator *pool, RendVkMemory *memory) +{ + VkDeviceSize requested = ((memory->size / pool->page_size) + 1) * pool->page_size; + + RendVkPoolMemory *mem_pool = &pool->mem_pools[memory->type]; + + pool->blocks_[allocation.id].pageReserved = false; + + mem_pool->block_darr[block_idx].layout_darr[span_idx].offset += size; + mem_pool->block_darr[block_idx].layout_darr[span_idx].size -= size; + + OffsetSize span = {allocation.offset, requestedAllocSize }; + bool found = false; + + uint32_t numLayoutMems = pool.blocks[allocation.id].layout.size(); + for (uint32_t j = 0; j < numLayoutMems; ++j) + { + if (pool.blocks[allocation.id].layout[j].offset == requestedAllocSize +allocation.offset) + { + pool.blocks[allocation.id].layout[j].offset = allocation.offset; + pool.blocks[allocation.id].layout[j].size += requestedAllocSize; + found = true; + break; + } + } + + if (!found) + { + state.memPools[allocation.type].blocks[allocation.id].layout.push_back(span); + state.memTypeAllocSizes[allocation.type] -= requestedAllocSize; + } +} + +static void +rend_vk_pool_destroy(RendVkPoolAllocator *pool) +{ + if (pool->mem_pools) { + for (size_t u = 0; u < pool->memory_type_count; ++u) { + RendVkPoolMemory mem_pool = pool->mem_pools[u]; + for (size_t b = 0; b < p_darray_len(mem_pool.block_darr); ++b) { + RendVKPoolBlock block = mem_pool.block_darr[b]; + p_darray_destroy(block.layout_darr); + } + p_darray_destroy(mem_pool.block_darr); + } + free(pool->mem_pools); + pool->mem_pools = 0; + } + if (pool->mem_type_alloc_sizes) { + free(pool->mem_type_alloc_sizes); + pool->mem_type_alloc_sizes = 0; + } + memset(pool, 0, sizeof *pool); +} +#endif diff --git a/Rend/unused code/rend_vk_sbta.c b/Rend/unused code/rend_vk_sbta.c new file mode 100644 index 0000000..7bc51c4 --- /dev/null +++ b/Rend/unused code/rend_vk_sbta.c @@ -0,0 +1,331 @@ +#pragma once +#include "rend_internal.h" +#include "rend_vk_internal.h" +#include <vulkan/vulkan_core.h> + +/* + * Sparse Bindless Texture Array (SBTA) + * + */ + +struct RendVkSbta { + VkDevice logical_device; + RendVkImage image; /* single 2D array image, arrayLayers = max_layers */ + VkImageView *views; /* per-layer VkImageView array */ + VkFormat format; + VkExtent2D extent; + uint32_t max_layers; + uint32_t mip_levels; + uint64_t *bitmap; /* 1 bit per layer slot */ + uint32_t bitmap_word_count; + uint32_t allocated_count; + RendMemory memory; +}; + +static inline uint32_t +rend_vk_sbta_mip_count(uint32_t w, uint32_t h) +{ + uint32_t v = (w > h) ? w : h; + uint32_t levels = 1; + while (v >>= 1) { levels++; } + return levels; +} + +static void +rend_vk_sbta_create(RendVkSbta *sbta, VkDevice logical_device, VkExtent2D extent, uint32_t layers) +{ + memset(sbta, 0, sizeof *sbta); + sbta->logical_device = logical_device; + sbta->format = VK_FORMAT_R8G8B8A8_SRGB; + sbta->extent = extent; + sbta->max_layers = layers; + sbta->mip_levels = rend_vk_sbta_mip_count(extent.width, extent.height); + + /* create image */ + sbta->image = rend_vk_image_create( + logical_device, + VK_IMAGE_TYPE_2D, + extent.width, extent.height, + sbta->format, + VK_IMAGE_TILING_OPTIMAL, + VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT, + VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, + 1, /* depth */ + sbta->mip_levels, + layers, + VK_SAMPLE_COUNT_1_BIT, + VK_SHARING_MODE_EXCLUSIVE + ); + + /* allocate per-layer views array */ + sbta->views = rmalloc(layers * sizeof *sbta->views); + memset(sbta->views, 0, layers * sizeof *sbta->views); + + /* bitmap: ceil(layers / 64) words */ + sbta->bitmap_word_count = (layers + 63) / 64; + sbta->bitmap = rmalloc(sbta->bitmap_word_count * sizeof *sbta->bitmap); + memset(sbta->bitmap, 0, sbta->bitmap_word_count * sizeof *sbta->bitmap); + sbta->allocated_count = 0; +} + +static void +rend_vk_sbta_create_views(RendVkSbta *sbta) +{ + for (uint32_t i = 0; i < sbta->max_layers; ++i) { + VkImageViewCreateInfo view_info = { + .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, + .image = sbta->image.handle, + .format = sbta->format, + .viewType = VK_IMAGE_VIEW_TYPE_2D, + .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .subresourceRange.baseMipLevel = 0, + .subresourceRange.levelCount = sbta->mip_levels, + .subresourceRange.baseArrayLayer = i, + .subresourceRange.layerCount = 1, + }; + vkCreateImageView(sbta->logical_device, &view_info, vk_allocator, &sbta->views[i]); + } +} + +static void +rend_vk_sbta_destroy(RendVkSbta *sbta) +{ + for (uint32_t i = 0; i < sbta->max_layers; ++i) { + if (sbta->views[i]) { + vkDestroyImageView(sbta->logical_device, sbta->views[i], vk_allocator); + } + } + + rend_vk_image_destroy(&sbta->image); + + rfree(sbta->views); + rfree(sbta->bitmap); + memset(sbta, 0, sizeof *sbta); +} + +static uint64_t +rend_vk_sbta_alloc(RendVkSbta *sbta) +{ + for (uint32_t w = 0; w < sbta->bitmap_word_count; ++w) { + if (sbta->bitmap[w] == ~(uint64_t)0) continue; /* word full */ + + /* find first zero bit */ + uint64_t word = sbta->bitmap[w]; + uint64_t bit = ~word & (word + 1); /* isolate lowest zero bit */ + uint32_t bit_index = 0; + uint64_t tmp = bit; + while (tmp >>= 1) { bit_index++; } + + uint64_t slot = (uint64_t)w * 64 + bit_index; + if (slot >= sbta->max_layers) return UINT64_MAX; /* past capacity */ + + sbta->bitmap[w] |= bit; + sbta->allocated_count++; + return slot; + } + return UINT64_MAX; /* full */ +} + +static void +rend_vk_sbta_free(RendVkSbta *sbta, uint64_t idx) +{ + assert(idx < sbta->max_layers && "SBTA free: index out of range"); + + uint32_t word = (uint32_t)(idx / 64); + uint32_t bit = (uint32_t)(idx % 64); + assert((sbta->bitmap[word] & (1ULL << bit)) && "SBTA free: slot not allocated (double free?)"); + + sbta->bitmap[word] &= ~(1ULL << bit); + sbta->allocated_count--; +} + +static void +rend_vk_sbta_upload(RendVkSbta *sbta, VkCommandBuffer cmd, RendVkArenaAllocator *staging_arena, uint64_t slot, void *pixels, uint64_t size) +{ + assert(slot < sbta->max_layers); + assert(pixels && size > 0); + + /* ---- staging buffer ---- */ + VkBufferCreateInfo buf_info = { + .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO, + .size = size, + .usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT, + }; + + VkBuffer staging_buf; + vkCreateBuffer(sbta->logical_device, &buf_info, vk_allocator, &staging_buf); + + VkMemoryRequirements staging_reqs; + vkGetBufferMemoryRequirements(sbta->logical_device, staging_buf, &staging_reqs); + + uint32_t host_index = vk_device.host_index; + RendMemory staging_mem = rend_vk_arena_alloc(staging_arena, staging_reqs.size, host_index); + vkBindBufferMemory(sbta->logical_device, staging_buf, (VkDeviceMemory) staging_mem.device_memory, staging_mem.offset); + + /* copy pixels into staging */ + memcpy(staging_mem.host_mapped_memory, pixels, size); + + /* ---- transition layer mip 0: UNDEFINED -> TRANSFER_DST ---- */ + VkImageMemoryBarrier2 barrier_to_dst = { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .srcStageMask = VK_PIPELINE_STAGE_2_NONE, + .srcAccessMask = VK_ACCESS_2_NONE, + .dstStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT, + .dstAccessMask = VK_ACCESS_2_TRANSFER_WRITE_BIT, + .oldLayout = VK_IMAGE_LAYOUT_UNDEFINED, + .newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + .image = sbta->image.handle, + .subresourceRange = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = sbta->mip_levels, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + }; + + VkDependencyInfo dep_to_dst = { + .sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO, + .imageMemoryBarrierCount = 1, + .pImageMemoryBarriers = &barrier_to_dst, + }; + vkCmdPipelineBarrier2(cmd, &dep_to_dst); + + /* ---- copy staging -> image mip 0 ---- */ + VkBufferImageCopy copy_region = { + .bufferOffset = 0, + .imageSubresource = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .mipLevel = 0, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + .imageExtent = { sbta->extent.width, sbta->extent.height, 1 }, + }; + + vkCmdCopyBufferToImage(cmd, staging_buf, sbta->image.handle, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ©_region); + + /* ---- generate mipmaps via blit chain ---- */ + int32_t mip_w = (int32_t)sbta->extent.width; + int32_t mip_h = (int32_t)sbta->extent.height; + + for (uint32_t mip = 1; mip < sbta->mip_levels; ++mip) { + /* transition previous mip: TRANSFER_DST -> TRANSFER_SRC */ + VkImageMemoryBarrier2 barrier_src = { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .srcStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT, + .srcAccessMask = VK_ACCESS_2_TRANSFER_WRITE_BIT, + .dstStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT, + .dstAccessMask = VK_ACCESS_2_TRANSFER_READ_BIT, + .oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + .newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, + .image = sbta->image.handle, + .subresourceRange = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = mip - 1, + .levelCount = 1, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + }; + + VkDependencyInfo dep_src = { + .sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO, + .imageMemoryBarrierCount = 1, + .pImageMemoryBarriers = &barrier_src, + }; + vkCmdPipelineBarrier2(cmd, &dep_src); + + /* blit from mip-1 to mip */ + int32_t next_w = (mip_w > 1) ? mip_w / 2 : 1; + int32_t next_h = (mip_h > 1) ? mip_h / 2 : 1; + + VkImageBlit2 blit = { + .sType = VK_STRUCTURE_TYPE_IMAGE_BLIT_2, + .srcSubresource = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .mipLevel = mip - 1, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + .srcOffsets = { {0, 0, 0}, {mip_w, mip_h, 1} }, + .dstSubresource = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .mipLevel = mip, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + .dstOffsets = { {0, 0, 0}, {next_w, next_h, 1} }, + }; + + VkBlitImageInfo2 blit_info = { + .sType = VK_STRUCTURE_TYPE_BLIT_IMAGE_INFO_2, + .srcImage = sbta->image.handle, + .srcImageLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, + .dstImage = sbta->image.handle, + .dstImageLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + .regionCount = 1, + .pRegions = &blit, + .filter = VK_FILTER_LINEAR, + }; + vkCmdBlitImage2(cmd, &blit_info); + + mip_w = next_w; + mip_h = next_h; + } + + /* ---- final transition: all mips -> SHADER_READ_ONLY ---- */ + /* last mip is still TRANSFER_DST, all others are TRANSFER_SRC */ + + /* transition last mip: TRANSFER_DST -> SHADER_READ_ONLY */ + VkImageMemoryBarrier2 barriers_final[2] = { + /* mips 0..N-2: TRANSFER_SRC -> SHADER_READ_ONLY */ + { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .srcStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT, + .srcAccessMask = VK_ACCESS_2_TRANSFER_READ_BIT, + .dstStageMask = VK_PIPELINE_STAGE_2_FRAGMENT_SHADER_BIT, + .dstAccessMask = VK_ACCESS_2_SHADER_SAMPLED_READ_BIT, + .oldLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, + .newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, + .image = sbta->image.handle, + .subresourceRange = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = 0, + .levelCount = (sbta->mip_levels > 1) ? sbta->mip_levels - 1 : 1, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + }, + /* last mip: TRANSFER_DST -> SHADER_READ_ONLY */ + { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2, + .srcStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT, + .srcAccessMask = VK_ACCESS_2_TRANSFER_WRITE_BIT, + .dstStageMask = VK_PIPELINE_STAGE_2_FRAGMENT_SHADER_BIT, + .dstAccessMask = VK_ACCESS_2_SHADER_SAMPLED_READ_BIT, + .oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + .newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, + .image = sbta->image.handle, + .subresourceRange = { + .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .baseMipLevel = sbta->mip_levels - 1, + .levelCount = 1, + .baseArrayLayer = (uint32_t)slot, + .layerCount = 1, + }, + }, + }; + + uint32_t barrier_count = (sbta->mip_levels > 1) ? 2 : 1; + + /* if only 1 mip, use second barrier (TRANSFER_DST path) */ + VkImageMemoryBarrier2 *barrier_ptr = (sbta->mip_levels > 1) ? barriers_final : &barriers_final[1]; + + VkDependencyInfo dep_final = { + .sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO, + .imageMemoryBarrierCount = barrier_count, + .pImageMemoryBarriers = barrier_ptr, + }; + vkCmdPipelineBarrier2(cmd, &dep_final); +} @@ -0,0 +1,33 @@ +#define POOF_IMPLEMENTATION +#include "../Poof/poof.h" + +void Peak() { + Poof_Cmd cmd = {0}; + poof_cmd_append(&cmd, "python", "bundle_header.py", "src/peak_header.h"); + poof_cmd_run(&cmd); + + poof_copy_file("Peak/src/peak_header.h.out", "Peak/peak.h"); + + Poof_CC cc = {0}; + poof_cc_init(&cc, POOF_CC_GCC | POOF_CC_CLANG, POOF_TARGET_HOST); + cc.debug_mode = true; + cc.optimization = POOF_O0; + cc.output = "Peak/demos/demo"; + poof_cc_append(&cc.inputs, "Peak/demos/demo.c"); + poof_cc_append(&cc.extra_flags, "-std=c99", "-Wall", "-Wno-deprecated-declarations"); + poof_cc_append(&cc.libs, "m"); + poof_cc_run(&cc); + + cc.debug_mode = true; + cc.optimization = POOF_O0; + cc.output = "Peak/demos/demo_main"; + poof_cc_append(&cc.inputs, "Peak/demos/demo_replace_main.c"); + poof_cc_append(&cc.extra_flags, "-std=c99", "-Wall", "-Wno-deprecated-declarations"); + poof_cc_append(&cc.libs, "m"); + poof_cc_run(&cc); +} + +int main(int argc, char **argv) { + POOF_GO_REBUILD_URSELF(argc, argv); + Peak(); +} diff --git a/bundle_header.py b/bundle_header.py new file mode 100644 index 0000000..0073163 --- /dev/null +++ b/bundle_header.py @@ -0,0 +1,46 @@ +import re +import sys +from pathlib import Path + +def bundle_header(input_path: Path): + """ + Looks for #include "filename" // <REPLACE> + And inlines that file directly into the code. + """ + output_path = input_path.with_suffix(input_path.suffix + ".out") + + include_pattern = re.compile(r'#include\s+["<](?P<filename>.*)[">]\s*//\s*<REPLACE>') + + def process_file(file_path: Path) -> str: + if not file_path.exists(): + print(f"Warning: {file_path} not found.") + return f"// Error: {file_path} not found\n" + + lines = [] + with open(file_path, 'r') as f: + for line in f: + match = include_pattern.search(line) + if match: + include_name = match.group('filename') + # Look for the file relative to the current file's directory + nested_path = file_path.parent / include_name + lines.append(f"/* --- Start of {include_name} --- */\n") + lines.append(process_file(nested_path)) + lines.append(f"/* --- End of {include_name} --- */\n") + else: + lines.append(line) + return "".join(lines) + + content = process_file(input_path) + + with open(output_path, 'w') as f: + f.write(content) + + print(f"Successfully bundled into: {output_path}") + +if __name__ == "__main__": + if len(sys.argv) < 2: + print("Usage: python build.py <path_to_header>") + sys.exit(1) + + bundle_header(Path(sys.argv[1])) |
