/^drawgen/ s/char\*, Dirtab\*, int,/char *_, Dirtab *__, int ___,/
,s/(Memimage\*,/(Memimage *m,/
,s/(next = ds->next)/(&)/
,s/(next = d->next)/(&)/
,s/(next = cs->next)/(&)/
/^makescreenimage/+2i
	void *X;
.
/attachscreen/ s/);/, \&X);/
/allocmemimaged/ s/md)/md, X)/
,s/(r = cl->refresh)/(&)/
/^drawwrite/ s/vlong)/vlong _)/
g/SET(s,q,p)/d
g/USED/d
g/^	int s;/d
/screen.h"/a

#define blankscreen(x)
#define ishwimage(x) (0)
.
/^drawlookupscreen/;#
/	return 0/ s/return 0/for(;;)/
g/Edepth/d
/l = dimage->image;/d
-1i
	l = dimage->image;
	dimage->dscreen = nil;	/* paranoia */
	dimage->image = nil;
.
/^drawattach/;#
/initscreenimage/s/(.*)/(!conf.monitor || !initscreenimage())/
/freememimage(dimage->image);/ s/dimage->image/l/
,s/dunlock/drawqunlock/g
,s/candlock/drawcanqlock/g
,s/dlock(/drawqlock(/g
,s;MACHP(0)->ticks;msec()/1000;g
/^drawqlock/-1 s/static //
/^drawqunlock/-1 s/static //
/^drawcanqlock/-1 s/static //
$a

/* why is this here? why can't caller use drawqlock himself? */
void
drawflushr(Rectangle r)
{
	drawqlock();
	flushmemscreen(r);
	drawqunlock();
}

void
drawreplacescreenimage(Memimage *m)
{
	int i;
	DImage *di;

	if(screendimage == nil)
		return;

	/*
	 * Replace the screen image because the screen
	 * was resized.  Clients still have references to the
	 * old screen image, so we can't free it just yet.
	 */
	drawqlock();
	di = allocdimage(m);
	if(di == nil){
		print("no memory to replace screen image\n");
		freememimage(m);
		drawqunlock();
		return;
	}
	
	/* Replace old screen image in global name lookup. */
	for(i=0; i<sdraw.nname; i++){
		if(sdraw.name[i].dimage == screendimage)
		if(sdraw.name[i].client == nil){
			sdraw.name[i].dimage = di;
			break;
		}
	}

	drawfreedimage(screendimage);
	screendimage = di;
	screenimage = m;

	/*
	 * Every client, when it starts, gets a copy of the
	 * screen image as image 0.  Clients only use it 
	 * for drawing if there is no /dev/winname, but
	 * this /dev/draw provides a winname (early ones
	 * didn't; winname originated in rio), so the
	 * image only ends up used to find the screen
	 * resolution and pixel format during initialization.
	 * Silently remove the now-outdated image 0s.
	 */
	for(i=0; i<sdraw.nclient; i++){
		if(sdraw.client[i] && !waserror()){
			drawuninstall(sdraw.client[i], 0);
			poperror();
		}
	}

	drawqunlock();
	mouseresize();
}
.