Date: Sat, 10 Jul 2004 21:02:33 +0200 From: "Philippe Plantier (ayin)" Subject: [SDL] Problems allocating large surfaces There are problems when allocating large surfaces using SDL_CreateRGBSurface. When, for example, we try to allocate a surface wider than 16384 pixels, the calculation of the pitch overflows; this leads to a surface that has the w and h flags correctly set, but whose "pixels" buffer is too small. That may lead to heap corruption.

/* Print out all the keysyms we have, just to verify them */

#include <stdio.h>
#include <ctype.h>

#include "SDL.h"

int main(int argc, char *argv[])
{
	SDLKey key;

	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
		fprintf(stderr, "Couldn't initialize SDL: %s\n",
							SDL_GetError());
		exit(1);
	}
	for ( key=SDLK_FIRST; key<SDLK_LAST; ++key ) {
		printf("Key #%d, \"%s\"\n", key, SDL_GetKeyName(key));
	}
	SDL_Quit();
	return(0);
}