#include <u.h>#include <libc.h>#include <draw.h>#include <memdraw.h> Memcmap*	memdefcmap; static Memcmap	def; void_memmkcmap(void){ 	int i, rgb, r, g, b; 	if(memdefcmap)		return; 	for(i=0; i<256; i++){		rgb = cmap2rgb(i);		r = (rgb>>16)&0xff;		g = (rgb>>8)&0xff;		b = rgb&0xff;		def.cmap2rgb[3*i] = r;		def.cmap2rgb[3*i+1] = g;		def.cmap2rgb[3*i+2] = b;	} 	for(r=0; r<16; r++)	for(g=0; g<16; g++)	for(b=0; b<16; b++)		def.rgb2cmap[r*16*16+g*16+b] = rgb2cmap(r*0x11, g*0x11, b*0x11);	memdefcmap = &def;}