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/*
* Copyright 2014 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include <assert.h>
#include <emscripten.h>
#include <unistd.h>
#include <stdlib.h>
#ifndef BITSPERPIXEL
#define BITSPERPIXEL 32
#endif
int testImage(SDL_Renderer* renderer, const char* fileName) {
SDL_Surface *image = IMG_Load(fileName);
if (!image)
{
printf("IMG_Load: %s\n", IMG_GetError());
return 0;
}
assert(image->format->BitsPerPixel == BITSPERPIXEL);
assert(image->format->BytesPerPixel == BITSPERPIXEL / 8);
assert(image->pitch == BITSPERPIXEL / 8 * image->w);
int result = image->w;
#ifndef NO_PRELOADED
int w, h;
char *data = emscripten_get_preloaded_image_data(fileName, &w, &h);
assert(data);
assert(w == image->w);
assert(h == image->h);
#endif
SDL_Texture *tex = SDL_CreateTextureFromSurface(renderer, image);
SDL_RenderCopy (renderer, tex, NULL, NULL);
SDL_DestroyTexture (tex);
SDL_FreeSurface (image);
#ifndef NO_PRELOADED
free(data);
#endif
return result;
}
int main() {
SDL_Init(SDL_INIT_VIDEO);
SDL_Window *window;
SDL_Renderer *renderer;
SDL_CreateWindowAndRenderer(600, 450, 0, &window, &renderer);
int result = 0;
result = testImage(renderer, SCREENSHOT_DIRNAME "/" SCREENSHOT_BASENAME); // absolute path
assert(result != 0);
chdir(SCREENSHOT_DIRNAME);
result = testImage(renderer, "./" SCREENSHOT_BASENAME); // relative path
assert(result != 0);
SDL_RenderPresent(renderer);
printf("you should see an image.\n");
return result;
}
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