88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
#define STB_IMAGE_IMPLEMENTATION
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#define STBI_MALLOC(sz) SDL_malloc(sz)
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#define STBI_REALLOC(p,newsz) SDL_realloc(p,newsz)
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#define STBI_FREE(p) SDL_free(p)
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#include <SDL3/SDL.h>
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#include "stb_image.h"
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#include "dat.h"
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#include "fns.h"
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void
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free_image(Image *i)
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{
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if (i) {
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if (i->tex) {
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babble("free img %s texture...", i->name);
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SDL_DestroyTexture(i->tex);
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}
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if (i->sur) {
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babble("destroy image %s surface...", i->name);
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SDL_DestroySurface(i->sur);
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}
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if (i->data) {
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babble("free img %s data...", i->name);
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stbi_image_free(i->data);
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}
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if (i->name) {
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babble("free img %s name...", i->name);
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SDL_free(i->name);
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}
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babble("free aforementioned img...");
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SDL_free(i);
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}
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}
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Image *
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load_image(SDL_Renderer *ren, char *path)
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{
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Image *i;
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babble("create image %s...", path);
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babble("alloc image...", path);
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i = SDL_calloc(1, sizeof(Image));
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if (!i) {
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shit("mem alloc fail: %s", SDL_GetError());
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return NULL;
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}
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babble("alloc image %s name...", path);
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i->name = SDL_strdup(path);
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if (!i->name) {
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shit("strdup fail: %s", SDL_GetError());
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free_image(i);
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return NULL;
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}
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babble("alloc image %s data...", i->name);
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i->data = stbi_load(path, &i->w, &i->h,
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&i->bpp, 4);
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if (!i->data) {
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shit("img load fail: %s", stbi_failure_reason());
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free_image(i);
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return NULL;
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}
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babble("alloc image %s surface...", i->name);
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i->sur = SDL_CreateSurfaceFrom(i->w, i->h,
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SDL_PIXELFORMAT_RGBA32, i->data,
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i->w * 4);
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if (!i->sur) {
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shit("surface creation fail: %s", SDL_GetError());
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free_image(i);
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return NULL;
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}
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babble("alloc image %s texture...", i->name);
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i->tex = SDL_CreateTextureFromSurface(ren, i->sur);
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if (!i->tex) {
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shit("surface creation fail: %s", SDL_GetError());
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SDL_DestroySurface(i->sur);
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free_image(i);
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return NULL;
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}
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babble("image %s created", path);
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return i;
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}
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