[SDL] SDL fullscreen problem

[cocobear]

Any one can help me?



cocobear wrote:
> 
> When I run a program  in X system on F7 ,the X crashed ,just like I press 
> CTRL+ALT+BACKSPACE. 
> It is sure that the code has no problem,I get it from linux game
> programming. 
> What's the problem? 
> 
> 
> the code is below, 
> 
> #include <SDL/SDL.h> 
> #include <stdio.h> 
> #include <stdlib.h> 
> Uint16 CreateHicolorPixel(SDL_PixelFormat * fmt, Uint8 red, 
>                           Uint8 green, Uint8 blue) 
> { 
>     Uint16 value; 
>     value = ((red >> fmt->Rloss) << fmt->Rshift) + 
>             ((green >> fmt->Gloss) << fmt->Gshift) + 
>             ((blue >> fmt->Bloss) << fmt->Bshift); 
>     return value; 
> } 
> int main() 
> { 
>     SDL_Surface *screen; 
>     Uint16 *raw_pixels; 
>     int x, y; 
>    if (SDL_Init(SDL_INIT_VIDEO) != 0) { 
>        printf("Unable to initialize SDL: %s\n", SDL_GetError()); 
>        return 1; 
>    } 
>    atexit(SDL_Quit); 
>    screen = SDL_SetVideoMode(256, 256, 24, SDL_FULLSCREEN|SDL_SWSURFACE); 
>    if (screen == NULL) { 
>        printf("Unable to set video mode: %s\n", SDL_GetError()); 
>        return 1; 
>    } 
>    SDL_LockSurface(screen); 
>    raw_pixels = (Uint16 *) screen->pixels; 
>    for (x = 0; x < 256; x++) { 
>        for (y = 0; y < 256; y++) { 
>            Uint16 pixel_color; 
>            int offset; 
>            pixel_color = CreateHicolorPixel(screen->format, 
>                                           x, 0, y); 
>            offset = (screen->pitch / 2 * y + x); 
>            raw_pixels[offset] = pixel_color; 
>         } 
>     } 
>     SDL_UnlockSurface(screen); 
>     SDL_UpdateRect(screen, 10, 10, 200, 120); 
>     SDL_Delay(3000); 
>     return 0; 
>  }
> 
> _______________________________________________
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> SDL at lists.libsdl.org
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> 
> 

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