40 lines
793 B
C
40 lines
793 B
C
/*
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* Strange Bug ?
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <SDL2/SDL.h>
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int main(int argc, char *argv[])
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{
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SDL_Window *win;
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SDL_Renderer *rend;
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int idx, idy;
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if(SDL_CreateWindowAndRenderer(256, 256, SDL_WINDOW_SHOWN, &win, &rend))
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{
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fprintf(stderr, "Err SDL_CreateWindowAndRenderer : %s", SDL_GetError());
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exit(1);
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}
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SDL_SetRenderDrawColor(rend, 255, 0, 0, 0);
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SDL_RenderClear(rend);
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SDL_RenderPresent(rend);
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for (idx=0; idx<256; idx++) {
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for (idy=0; idy<256; idy++) {
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SDL_SetRenderDrawColor(rend, 127, idx, idy, 0);
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SDL_RenderDrawPoint(rend, idx, idy);
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}
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SDL_RenderPresent(rend);
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// SDL_Delay(50); /* Is the bug here ? */
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}
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SDL_RenderPresent(rend);
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sleep(30);
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SDL_DestroyRenderer(rend);
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SDL_DestroyWindow(win);
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return 0;
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} |