#include <u.h>#include <libc.h>#include <draw.h> static voiddraw1(Image *dst, Rectangle *r, Image *src, Point *p0, Image *mask, Point *p1, Drawop op){	uchar *a; 	_lockdisplay(dst->display);	a = _bufimageop(dst->display, 1+4+4+4+4*4+2*4+2*4, op);	if(a == nil){		_unlockdisplay(dst->display);		return;	}	if(src == nil)		src = dst->display->black;	if(mask == nil)		mask = dst->display->opaque;	a[0] = 'd';	BPLONG(a+1, dst->id);	BPLONG(a+5, src->id);	BPLONG(a+9, mask->id);	BPLONG(a+13, r->min.x);	BPLONG(a+17, r->min.y);	BPLONG(a+21, r->max.x);	BPLONG(a+25, r->max.y);	BPLONG(a+29, p0->x);	BPLONG(a+33, p0->y);	BPLONG(a+37, p1->x);	BPLONG(a+41, p1->y);	_unlockdisplay(dst->display);} voiddraw(Image *dst, Rectangle r, Image *src, Image *mask, Point p1){	draw1(dst, &r, src, &p1, mask, &p1, SoverD);} voiddrawop(Image *dst, Rectangle r, Image *src, Image *mask, Point p1, Drawop op){	draw1(dst, &r, src, &p1, mask, &p1, op);} voidgendraw(Image *dst, Rectangle r, Image *src, Point p0, Image *mask, Point p1){	draw1(dst, &r, src, &p0, mask, &p1, SoverD);} voidgendrawop(Image *dst, Rectangle r, Image *src, Point p0, Image *mask, Point p1, Drawop op){	draw1(dst, &r, src, &p0, mask, &p1, op);}