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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <assert.h>
#include <emscripten.h>
SDL_Surface* screen;
int testImage(const char* fileName) {
printf("IMG_Load: %s\n", fileName);
SDL_Surface *image = IMG_Load(fileName);
if (!image)
{
printf("IMG_Load: %s\n", IMG_GetError());
return 0;
}
assert(image->format->BitsPerPixel == 32);
assert(image->format->BytesPerPixel == 4);
assert(image->pitch == 4*image->w);
int result = image->w;
SDL_BlitSurface (image, NULL, screen, NULL);
SDL_FreeSurface (image);
return result;
}
void ready(void *arg, const char *fileName) {
printf("ready! %s (%d)\n", fileName, (int)arg);
static int first = 1;
static const char *seenName;
static void *seenArg;
if (first) {
first = 0;
seenName = fileName;
seenArg = arg;
} else {
printf("%s ? %s == %d\n", fileName, seenName, strcmp(fileName, seenName));
assert(strcmp(fileName, seenName)); // different names
assert(seenArg != arg); // different args
testImage(seenName);
free((void*)seenName); // As the API docs say, we are responsible for freeing the 'fake' names we are given
SDL_Flip(screen);
}
}
int main() {
SDL_Init(SDL_INIT_VIDEO);
screen = SDL_SetVideoMode(600, 450, 32, SDL_SWSURFACE);
printf("prepare..\n");
#define SIZE 203164
FILE *f = fopen("screenshot.not", "rb");
char *buffer = malloc(SIZE);
fread(buffer, SIZE, 1, f);
fclose(f);
emscripten_async_prepare_data(buffer, SIZE, "jpg", (void*)25, ready, NULL);
emscripten_async_prepare_data(buffer, SIZE, "jpg", (void*)33, ready, NULL); // twice to see different filenames
return 0;
}
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