72 строки
1.7 KiB
C
72 строки
1.7 KiB
C
#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;
|
|
}
|
|
|