Completed work on X11_CreateTexture. Added lots of safety features. These include support for drawing a texture using the core protocol while other textures are drawn using Xrender if Xrender does not support the color format of the said texture or any other fault with Xrender.

/*
 *	common.h
 *	written by Holmes Futrell
 *	use however you want
 */

#define SCREEN_WIDTH 320
#define SCREEN_HEIGHT 480

extern int randomInt(int min, int max);
extern float randomFloat(float min, float max);
extern void fatalError(const char *string);