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finally start on the rewrite

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cat 2025-06-28 15:59:51 +10:00
parent 57ad9fd139
commit fbedd77ed1
7 changed files with 98 additions and 0 deletions
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59
img.c Normal file
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#define STB_IMAGE_IMPLEMENTATION
#define STBI_MALLOC(sz) SDL_malloc(sz)
#define STBI_REALLOC(p,newsz) SDL_realloc(p,newsz)
#define STBI_FREE(p) SDL_free(p)
#include <SDL3/SDL.h>
#include "stb_image.h"
#include "dat.h"
#include "fns.h"
void
free_image(Image *i)
{
if (i->tex) {
babble("destroying texture for image %s...", i->name);
SDL_DestroyTexture(i->tex);
}
if (i->sur) {
babble("destroying surface for image %s...", i->name);
SDL_DestroySurface(i->sur);
}
if (i->data) {
babble("destroying data for image %s...", i->name);
stbi_image_free(i->data);
}
}
int
load_image(Image *i, SDL_Renderer *ren)
{
babble("opening image %s...", i->name);
i->data = stbi_load(i->name, &i->w, &i->h, &i->bpp, 4);
if (!i->data) {
shit("stbi_load: %s", stbi_failure_reason());
goto err;
}
babble("creating surface for image %s...", i->name);
i->sur = SDL_CreateSurfaceFrom(i->w, i->h, SDL_PIXELFORMAT_RGBA32,
i->data, i->w * 4);
if (!i->sur) {
shit("SDL_CreateSurfaceFrom: %s", SDL_GetError());
goto err;
}
babble("creating texture for image %s...", i->name);
i->tex = SDL_CreateTextureFromSurface(ren, i->sur);
if (!i->tex) {
shit("SDL_CreateTextureFromSurface: %s", SDL_GetError());
goto err;
}
babble("created image %s!", i->name);
return 0;
err:
free_image(i);
return -1;
}