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#include "TZR_resource.h"
#include "TZR_globals.h"
#include "sdl_error.h"
#include <SDL2/SDL_mixer.h>
#include <SDL2/SDL_render.h>
#include <SDL2/SDL_rwops.h>
#include <string.h>
#ifdef TZR_STB_IMAGE
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
SDL_Surface *
stbi_load_surface(void *src, int size)
{
int width, height, chans;
void *const data = stbi_load_from_memory(src, size, &width, &height,
&chans, 4);
const int pitch = (width * 4 + 3) & ~3;
if (data == NULL) {
fprintf(stderr, "stbi: %s\n", stbi_failure_reason());
return NULL;
}
if (chans != 4) {
fprintf(stderr, "TZR only supports RGBA images\n");
free(data);
return NULL;
}
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
const int rmask = 0x000000ff;
const int gmask = 0x0000ff00;
const int bmask = 0x00ff0000;
const int amask = 0xff000000 * (chans == 4);
#else
const int s = 8 * (chans != 4);
const int rmask = 0xff000000 >> s;
const int gmask = 0x00ff0000 >> s;
const int bmask = 0x0000ff00 >> s;
const int amask = 0x000000ff >> s;
#endif
SDL_Surface *const surf = SDL_CreateRGBSurfaceFrom(data, width, height, chans * 8, pitch, rmask, gmask, bmask, amask);
if (surf == NULL) {
sdl_error(0);
free(data);
return NULL;
}
return surf;
}
#endif
int
TZR_DirectResourceLoad(TZR_Resource *res, const void *data, int size)
{
switch (res->type) {
case TZR_RES_RAW:
res->raw.size = size;
res->raw.data = malloc(size);
if (res->raw.data == NULL) {
perror("TZR_DirectResourceLoad");
return -1;
}
memcpy(res->raw.data, data, size);
break;
case TZR_RES_IMAGE: {
#ifdef TZR_STB_IMAGE
SDL_Surface *const surf = stbi_load_surface((void*)data, size);
if (surf == NULL)
return -1;
#else
SDL_RWops *const rw = SDL_RWFromConstMem(data, size);
if (rw == NULL)
return sdl_error(-1);
SDL_Surface *const surf = SDL_LoadBMP_RW(rw, 1);
if (surf == NULL)
return sdl_error(-1);
#endif
SDL_Texture *const tex =
SDL_CreateTextureFromSurface(___tzr_renderer, surf);
SDL_FreeSurface(surf);
if (tex == NULL)
return sdl_error(-1);
if (SDL_SetTextureBlendMode(tex, SDL_BLENDMODE_BLEND) < 0) {
SDL_DestroyTexture(tex);
return sdl_error(-1);
}
if (SDL_QueryTexture(tex, NULL, NULL,
&res->image.width, &res->image.height)) {
SDL_DestroyTexture(tex);
return sdl_error(-1);
}
res->image.ptr = tex;
} break;
case TZR_RES_SOUND: {
if (!___tzr_config.mixer) {
SDL_Log("audio mixer disabled, skip loading");
return -1;
}
SDL_RWops *const rw = SDL_RWFromConstMem(data, size);
if (rw == NULL)
return sdl_error(-1);
Mix_Chunk *const chunk = Mix_LoadWAV_RW(rw, 0);
SDL_RWclose(rw);
if (chunk == NULL)
return sdl_error(-1);
res->sound.ptr = chunk;
} break;
default:
fprintf(stderr, "invalid type\n");
return -1;
}
return 0;
}
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