47 строки
1.2 KiB
C
47 строки
1.2 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <SDL2/SDL.h>
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#include <assert.h>
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#include <emscripten.h>
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int main(int argc, char **argv) {
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FILE *f = fopen("data.txt", "rb");
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assert(f);
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assert(fgetc(f) == 'd');
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assert(fgetc(f) == 'a');
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assert(fgetc(f) == 't');
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assert(fgetc(f) == 'u');
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assert(fgetc(f) == 'm');
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fclose(f);
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SDL_Init(SDL_INIT_VIDEO);
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//SDL_Surface *screen = SDL_SetVideoMode(600, 450, 32, SDL_HWSURFACE);
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SDL_Window *window;
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SDL_Renderer *renderer;
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SDL_CreateWindowAndRenderer(600, 450, 0, &window, &renderer);
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SDL_Surface *screen = SDL_CreateRGBSurface(0, 600, 450, 32, 0, 0, 0, 0);
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SDL_LockSurface(screen);
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unsigned int *pixels = (unsigned int *)screen->pixels;
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for (int x = 0; x < screen->w; x++) {
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for (int y = 0; y < screen->h; y++) {
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pixels[x + y*screen->h] = x < 300 ? (y < 200 ? 0x3377AA88 : 0xAA3377CC) : (y < 200 ? 0x0066AA77 : 0xAA006699);
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}
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}
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SDL_UnlockSurface(screen);
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SDL_Texture *screenTexture = SDL_CreateTextureFromSurface(renderer, screen);
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SDL_RenderClear(renderer);
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SDL_RenderCopy(renderer, screenTexture, NULL, NULL);
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SDL_RenderPresent(renderer);
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SDL_Quit();
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EM_ASM(window.close());
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return 0;
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}
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