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improve 3d renderer

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This commit is contained in:
asrael 2025-11-19 22:18:08 -06:00
parent f19b06d705
commit a9de20cdea
17 changed files with 572 additions and 489 deletions
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56
src/pxl8_sdl3.c
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@ -31,17 +31,7 @@ static void* sdl3_create(pxl8_color_mode mode, pxl8_resolution resolution,
return NULL;
}
i32 fb_w, fb_h;
switch (resolution) {
case PXL8_RESOLUTION_240x160: fb_w = 240; fb_h = 160; break;
case PXL8_RESOLUTION_320x180: fb_w = 320; fb_h = 180; break;
case PXL8_RESOLUTION_320x240: fb_w = 320; fb_h = 240; break;
case PXL8_RESOLUTION_640x360: fb_w = 640; fb_h = 360; break;
case PXL8_RESOLUTION_640x480: fb_w = 640; fb_h = 480; break;
case PXL8_RESOLUTION_800x600: fb_w = 800; fb_h = 600; break;
case PXL8_RESOLUTION_960x540: fb_w = 960; fb_h = 540; break;
default: fb_w = 640; fb_h = 360; break;
}
pxl8_size fb_size = pxl8_get_resolution_dimensions(resolution);
ctx->window = SDL_CreateWindow(title, win_w, win_h, SDL_WINDOW_RESIZABLE);
if (!ctx->window) {
@ -65,7 +55,7 @@ static void* sdl3_create(pxl8_color_mode mode, pxl8_resolution resolution,
ctx->framebuffer_texture = SDL_CreateTexture(ctx->renderer,
SDL_PIXELFORMAT_RGBA32,
SDL_TEXTUREACCESS_STREAMING,
fb_w, fb_h);
fb_size.w, fb_size.h);
if (!ctx->framebuffer_texture) {
pxl8_error("Failed to create framebuffer texture: %s", SDL_GetError());
SDL_DestroyRenderer(ctx->renderer);
@ -145,14 +135,7 @@ static void sdl3_upload_framebuffer(void* platform_data, const u8* fb,
if (!ctx->rgba_buffer) return;
u32 palette_size;
switch (mode) {
case PXL8_COLOR_MODE_FAMI: palette_size = 64; break;
case PXL8_COLOR_MODE_MEGA: palette_size = 512; break;
case PXL8_COLOR_MODE_GBA: palette_size = 32768; break;
case PXL8_COLOR_MODE_SNES: palette_size = 32768; break;
default: palette_size = 256; break;
}
u32 palette_size = pxl8_get_palette_size(mode);
for (i32 i = 0; i < w * h; i++) {
u8 index = fb[i];
@ -212,14 +195,7 @@ static void sdl3_upload_atlas(void* platform_data, const pxl8_atlas* atlas,
if (!ctx->rgba_buffer) return;
u32 palette_size;
switch (mode) {
case PXL8_COLOR_MODE_FAMI: palette_size = 64; break;
case PXL8_COLOR_MODE_MEGA: palette_size = 512; break;
case PXL8_COLOR_MODE_GBA: palette_size = 32768; break;
case PXL8_COLOR_MODE_SNES: palette_size = 32768; break;
default: palette_size = 256; break;
}
u32 palette_size = pxl8_get_palette_size(mode);
for (u32 i = 0; i < atlas_w * atlas_h; i++) {
u8 index = atlas_pixels[i];
@ -290,12 +266,6 @@ SDL_AppResult SDL_AppEvent(void* appstate, SDL_Event* event) {
break;
case SDL_EVENT_KEY_DOWN: {
#ifdef DEBUG
if (event->key.key == SDLK_ESCAPE) {
pxl8_set_running(sys, false);
}
#endif
SDL_Scancode scancode = event->key.scancode;
if (scancode < 256) {
if (!input->keys_down[scancode]) {
@ -343,6 +313,9 @@ SDL_AppResult SDL_AppEvent(void* appstate, SDL_Event* event) {
pxl8_gfx* gfx = pxl8_get_gfx(sys);
if (!gfx) break;
input->mouse_dx = (i32)event->motion.xrel;
input->mouse_dy = (i32)event->motion.yrel;
i32 window_mouse_x = (i32)event->motion.x;
i32 window_mouse_y = (i32)event->motion.y;
@ -352,12 +325,11 @@ SDL_AppResult SDL_AppEvent(void* appstate, SDL_Event* event) {
i32 window_width, window_height;
SDL_GetWindowSize(window, &window_width, &window_height);
i32 render_width, render_height;
pxl8_resolution resolution = pxl8_get_resolution(sys);
pxl8_gfx_get_resolution_dimensions(resolution, &render_width, &render_height);
pxl8_size render_size = pxl8_get_resolution_dimensions(resolution);
pxl8_bounds window_bounds = {0, 0, window_width, window_height};
pxl8_viewport vp = pxl8_gfx_viewport(window_bounds, render_width, render_height);
pxl8_viewport vp = pxl8_gfx_viewport(window_bounds, render_size.w, render_size.h);
input->mouse_x = (i32)((window_mouse_x - vp.offset_x) / vp.scale);
input->mouse_y = (i32)((window_mouse_y - vp.offset_y) / vp.scale);
@ -386,6 +358,15 @@ void SDL_AppQuit(void* appstate, SDL_AppResult result) {
SDL_Quit();
}
static void sdl3_set_relative_mouse_mode(void* platform_data, bool enabled) {
if (!platform_data) return;
pxl8_sdl3_context* ctx = (pxl8_sdl3_context*)platform_data;
if (!SDL_SetWindowRelativeMouseMode(ctx->window, enabled)) {
pxl8_error("Failed to set relative mouse mode: %s", SDL_GetError());
}
}
const pxl8_hal pxl8_hal_sdl3 = {
.create = sdl3_create,
.destroy = sdl3_destroy,
@ -393,4 +374,5 @@ const pxl8_hal pxl8_hal_sdl3 = {
.present = sdl3_present,
.upload_atlas = sdl3_upload_atlas,
.upload_framebuffer = sdl3_upload_framebuffer,
.set_relative_mouse_mode = sdl3_set_relative_mouse_mode,
};