56 строки
1.1 KiB
C
56 строки
1.1 KiB
C
#include <stdio.h>
|
|
#include <SDL2/SDL.h>
|
|
#include <SDL2/SDL_image.h>
|
|
#include <assert.h>
|
|
#include <emscripten.h>
|
|
|
|
SDL_Renderer *renderer;
|
|
|
|
int testImage(const char* 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_Texture *tex = SDL_CreateTextureFromSurface(renderer, image);
|
|
|
|
SDL_RenderCopy (renderer, tex, NULL, NULL);
|
|
|
|
SDL_DestroyTexture (tex);
|
|
SDL_FreeSurface (image);
|
|
|
|
return result;
|
|
}
|
|
|
|
void ready(const char *f) {
|
|
printf("ready!\n");
|
|
|
|
testImage("screenshot.jpg"); // relative path
|
|
|
|
SDL_RenderPresent(renderer);
|
|
}
|
|
|
|
int main() {
|
|
SDL_Init(SDL_INIT_VIDEO);
|
|
SDL_Window *window;
|
|
|
|
SDL_CreateWindowAndRenderer(600, 450, 0, &window, &renderer);
|
|
|
|
printf("rename..\n");
|
|
|
|
rename("screenshot.not", "screenshot.jpg");
|
|
|
|
printf("prepare..\n");
|
|
|
|
assert(emscripten_async_prepare("screenshot.jpg", ready, NULL) == 0);
|
|
|
|
return 0;
|
|
}
|
|
|