[SDL] Segmentation fault when using rotozoomSurface

[Christian Brønnum-Hansen]

Hi!

I have written a little test program, to get to know the SDL_gfx library.

#include <SDL/SDL.h>
#include <SDL/SDL_rotozoom.h>

SDL_Surface *screen;
SDL_Surface *image;
SDL_Rect dest;
SDL_Event event;
Uint8 *keystate;
int quit;

int main(int argc, char *argv[]) {
        screen = SDL_SetVideoMode(640, 480, 8, SDL_SWSURFACE);

        image = SDL_LoadBMP("bil.bmp");
        dest.x = 200;
        dest.y = 200;

        while(!quit) {
                while (SDL_PollEvent(&event) ) {
                        switch (event.type) {
                                case SDL_KEYDOWN:
                                        keystate = SDL_GetKeyState(NULL);
                                break;
                                case SDL_QUIT:
                                        quit = 1;
                        }
                        if (keystate[SDLK_LEFT]) {
                                image = rotozoomSurface(image, -5, 1, 0);
                        }
                }

                dest.w = image->w;
                dest.h = image->h;

                SDL_BlitSurface(image, NULL, screen, &dest);
                SDL_UpdateRects(screen, 1, &dest);
                SDL_Delay(2000);
        }
}

The problem is that is returns a segmentation fault and I don't understand 
why.
Does anyone have a clue?

Thanks.
Christian.