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- [WIP] Solventant el problema dels shaders

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Raimon @ quifisraimon committed 2026-10-07 14:21:26 +02:00
1 parent 9efdbe9933
commit 7aebcfe055
4 files changed
+80 -11
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source/backends/SDL3/video.cpp
+47 -2
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@@ -6,6 +6,7 @@
#include "mini/surf/surf.h"
#include "mini/pal/pal.h"
#include "mini/shader/shader.h"
#include "other/log.h"
namespace backend
{
@@ -16,6 +17,9 @@ namespace backend
SDL_Texture *tex_back { nullptr };
SDL_Texture *tex_shader { nullptr };
int fullscreen_scale;
SDL_FRect dest_rect;
void init() {
const auto &title = mini::win::state.title;
const auto &width = mini::win::state.width;
@@ -27,8 +31,9 @@ namespace backend
const SDL_DisplayMode *dm = SDL_GetDesktopDisplayMode(SDL_GetPrimaryDisplay());
while ( width * zoom > dm->w || height * zoom > dm->h) zoom--;
const int z = mini::win::state.fullscreen ? 1 : zoom;
// Crear SDL_Window i SDL_Renderer
window = SDL_CreateWindow(title, width*zoom, height*zoom, SDL_WINDOW_OPENGL|(mini::win::state.fullscreen?SDL_WINDOW_FULLSCREEN:0));
window = SDL_CreateWindow(title, width*z, height*z, SDL_WINDOW_OPENGL|(mini::win::state.fullscreen?SDL_WINDOW_FULLSCREEN:0));
SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl");
renderer = SDL_CreateRenderer(window, NULL);
SDL_SetRenderVSync(renderer, SDL_RENDERER_VSYNC_DISABLED);
@@ -41,11 +46,44 @@ namespace backend
SDL_SetTextureScaleMode(tex_back, SDL_SCALEMODE_NEAREST);
// Crear textura shaders i inicialitzar shaders
tex_shader = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_TARGET, width*zoom, height*zoom);
int w = width*z;
int h = height*z;
if (mini::win::state.fullscreen) {
fullscreen_scale = SDL_min(dm->w/width, dm->h/height);
w = width * fullscreen_scale;
h = height * fullscreen_scale;
log_msg(LOG_INFO, "fullscreen_scale: %i\n", fullscreen_scale);
}
tex_shader = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_TARGET, w, h);
SDL_SetTextureScaleMode(tex_shader, SDL_SCALEMODE_NEAREST);
int ww, wh;
SDL_GetWindowSize(window, &ww, &wh);
printf("window: %ix%i\n", ww, wh);
if (mini::win::state.fullscreen)
{
dest_rect.w = width * fullscreen_scale;
dest_rect.h = height * fullscreen_scale;
dest_rect.x = (dm->w - dest_rect.w)/2;
dest_rect.y = (dm->h - dest_rect.h)/2;
printf("width: %i, height: %i\n", width, height);
printf("screen: %ix%i\n", dm->w, dm->h);
printf("dest_rect: (%i,%i)-(%i,%i)\n", (int)dest_rect.x, (int)dest_rect.y, (int)dest_rect.w, (int)dest_rect.h);
}
else
{
dest_rect.x = dest_rect.y = 0;
dest_rect.w = width * zoom;
dest_rect.h = height * zoom;
printf("dest_rect: (%i,%i)-(%i,%i)\n", (int)dest_rect.x, (int)dest_rect.y, (int)dest_rect.w, (int)dest_rect.h);
}
shader::reinit();
}
void quit() {
shader::quit();
SDL_DestroyTexture(tex_shader);
SDL_DestroyTexture(tex_back);
SDL_DestroyRenderer(renderer);
@@ -65,6 +103,13 @@ namespace backend
uint8_t *p = s.p;
for (uint32_t i=0;i<s.size;++i) pixels[i] = mini::pal::palette[p[i]];
SDL_UnlockTexture(tex_back);
if (mini::win::state.fullscreen)
{
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
}
SDL_RenderTexture(renderer, tex_back, NULL, NULL); //NEW
backend::shader::render();