enum{	NINE,	SVG,	JPEG,	GIF,	PNG,	BMP,}; void*	emalloc(ulong);void*	erealloc(void*, ulong);Image*	eallocimage(int, int, ulong, int, ulong);uchar*	readfile(char*, int*);int		writefile(char*, char*, int);int		fileformat(char*);