30 строки
778 B
C++
30 строки
778 B
C++
#include <stdio.h>
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#include <SDL/SDL.h>
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extern "C" int main(int argc, char** argv) {
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SDL_Init(SDL_INIT_VIDEO);
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SDL_Surface *screen = SDL_SetVideoMode(256, 256, 32, SDL_SWSURFACE);
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printf("freeing screen...\n");
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SDL_FreeSurface(screen);
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printf("recreating...\n");
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screen = SDL_SetVideoMode(256, 256, 32, SDL_SWSURFACE);
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printf("seems ok!\n");
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if (SDL_MUSTLOCK(screen)) SDL_LockSurface(screen);
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for (int i = 0; i < 256; i++) {
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for (int j = 0; j < 256; j++) {
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// alpha component is actually ignored, since this is to the screen
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*((Uint32*)screen->pixels + i * 256 + j) = SDL_MapRGBA(screen->format, i, j, 255-i, (i+j) % 255);
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}
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}
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if (SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
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SDL_Flip(screen);
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SDL_Quit();
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return 0;
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}
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