1 c66b5250 2006-06-25 devnull #include <u.h>
  2 c66b5250 2006-06-25 devnull #include "x11-inc.h"
  3 c66b5250 2006-06-25 devnull #include <libc.h>
  4 c66b5250 2006-06-25 devnull #include <draw.h>
  5 c66b5250 2006-06-25 devnull #include <memdraw.h>
  6 c66b5250 2006-06-25 devnull #include "x11-memdraw.h"
  7 c66b5250 2006-06-25 devnull 
  8 c66b5250 2006-06-25 devnull static void
  9 c66b5250 2006-06-25 devnull addrect(Rectangle *rp, Rectangle r)
 10 c66b5250 2006-06-25 devnull {
 11 c66b5250 2006-06-25 devnull 	if(rp->min.x >= rp->max.x)
 12 c66b5250 2006-06-25 devnull 		*rp = r;
 13 c66b5250 2006-06-25 devnull 	else
 14 c66b5250 2006-06-25 devnull 		combinerect(rp, r);
 15 c66b5250 2006-06-25 devnull }
 16 c66b5250 2006-06-25 devnull 
 17 c66b5250 2006-06-25 devnull XImage*
 18 c66b5250 2006-06-25 devnull _xgetxdata(Memimage *m, Rectangle r)
 19 c66b5250 2006-06-25 devnull {
 20 c66b5250 2006-06-25 devnull 	int x, y;
 21 c66b5250 2006-06-25 devnull 	uchar *p;
 22 c66b5250 2006-06-25 devnull 	Point tp, xdelta, delta;
 23 c66b5250 2006-06-25 devnull 	Xmem *xm;
 24 c66b5250 2006-06-25 devnull 	
 25 c66b5250 2006-06-25 devnull 	xm = m->X;
 26 c66b5250 2006-06-25 devnull 	if(xm == nil)
 27 c66b5250 2006-06-25 devnull 		return nil;
 28 c66b5250 2006-06-25 devnull 
 29 c66b5250 2006-06-25 devnull 	if(xm->dirty == 0)
 30 c66b5250 2006-06-25 devnull 		return xm->xi;
 31 c66b5250 2006-06-25 devnull 
 32 c66b5250 2006-06-25 devnull 	abort();	/* should never call this now */
 33 c66b5250 2006-06-25 devnull 
 34 c66b5250 2006-06-25 devnull 	r = xm->dirtyr;
 35 c66b5250 2006-06-25 devnull 	if(Dx(r)==0 || Dy(r)==0)
 36 c66b5250 2006-06-25 devnull 		return xm->xi;
 37 c66b5250 2006-06-25 devnull 
 38 c66b5250 2006-06-25 devnull 	delta = subpt(r.min, m->r.min);
 39 c66b5250 2006-06-25 devnull 
 40 c66b5250 2006-06-25 devnull 	tp = xm->r.min;	/* need temp for Digital UNIX */
 41 c66b5250 2006-06-25 devnull 	xdelta = subpt(r.min, tp);
 42 c66b5250 2006-06-25 devnull 
 43 c66b5250 2006-06-25 devnull 	XGetSubImage(_x.display, xm->pixmap, delta.x, delta.y, Dx(r), Dy(r),
 44 c66b5250 2006-06-25 devnull 		AllPlanes, ZPixmap, xm->xi, xdelta.x, delta.y);
 45 c66b5250 2006-06-25 devnull 
 46 c66b5250 2006-06-25 devnull 	if(_x.usetable && m->chan==CMAP8){
 47 c66b5250 2006-06-25 devnull 		for(y=r.min.y; y<r.max.y; y++)
 48 c66b5250 2006-06-25 devnull 		for(x=r.min.x, p=byteaddr(m, Pt(x,y)); x<r.max.x; x++, p++)
 49 c66b5250 2006-06-25 devnull 			*p = _x.toplan9[*p];
 50 c66b5250 2006-06-25 devnull 	}
 51 c66b5250 2006-06-25 devnull 	xm->dirty = 0;
 52 c66b5250 2006-06-25 devnull 	xm->dirtyr = Rect(0,0,0,0);
 53 c66b5250 2006-06-25 devnull 	return xm->xi;
 54 c66b5250 2006-06-25 devnull }
 55 c66b5250 2006-06-25 devnull 
 56 c66b5250 2006-06-25 devnull void
 57 c66b5250 2006-06-25 devnull _xputxdata(Memimage *m, Rectangle r)
 58 c66b5250 2006-06-25 devnull {
 59 220c15d2 2012-10-20 rsc 	int x, y;
 60 c66b5250 2006-06-25 devnull 	uchar *p;
 61 c66b5250 2006-06-25 devnull 	Point tp, xdelta, delta;
 62 c66b5250 2006-06-25 devnull 	Xmem *xm;
 63 c66b5250 2006-06-25 devnull 	XGC gc;
 64 c66b5250 2006-06-25 devnull 	XImage *xi;
 65 c66b5250 2006-06-25 devnull 
 66 c66b5250 2006-06-25 devnull 	xm = m->X;
 67 c66b5250 2006-06-25 devnull 	if(xm == nil)
 68 c66b5250 2006-06-25 devnull 		return;
 69 c66b5250 2006-06-25 devnull 
 70 c66b5250 2006-06-25 devnull 	xi = xm->xi;
 71 c66b5250 2006-06-25 devnull 	gc = m->chan==GREY1 ? _x.gccopy0 : _x.gccopy;
 72 c66b5250 2006-06-25 devnull 
 73 c66b5250 2006-06-25 devnull 	delta = subpt(r.min, m->r.min);
 74 c66b5250 2006-06-25 devnull 
 75 c66b5250 2006-06-25 devnull 	tp = xm->r.min;	/* need temporary on Digital UNIX */
 76 c66b5250 2006-06-25 devnull 	xdelta = subpt(r.min, tp);
 77 c66b5250 2006-06-25 devnull 
 78 c66b5250 2006-06-25 devnull 	if(_x.usetable && m->chan==CMAP8){
 79 c66b5250 2006-06-25 devnull 		for(y=r.min.y; y<r.max.y; y++)
 80 c66b5250 2006-06-25 devnull 		for(x=r.min.x, p=byteaddr(m, Pt(x,y)); x<r.max.x; x++, p++)
 81 c66b5250 2006-06-25 devnull 			*p = _x.tox11[*p];
 82 c66b5250 2006-06-25 devnull 	}
 83 c66b5250 2006-06-25 devnull 
 84 c66b5250 2006-06-25 devnull 	XPutImage(_x.display, xm->pixmap, gc, xi, xdelta.x, xdelta.y, delta.x, delta.y,
 85 c66b5250 2006-06-25 devnull 		Dx(r), Dy(r));
 86 c66b5250 2006-06-25 devnull 	
 87 c66b5250 2006-06-25 devnull 	if(_x.usetable && m->chan==CMAP8){
 88 c66b5250 2006-06-25 devnull 		for(y=r.min.y; y<r.max.y; y++)
 89 c66b5250 2006-06-25 devnull 		for(x=r.min.x, p=byteaddr(m, Pt(x,y)); x<r.max.x; x++, p++)
 90 c66b5250 2006-06-25 devnull 			*p = _x.toplan9[*p];
 91 c66b5250 2006-06-25 devnull 	}
 92 c66b5250 2006-06-25 devnull }
 93 c66b5250 2006-06-25 devnull 
 94 c66b5250 2006-06-25 devnull void
 95 c66b5250 2006-06-25 devnull _xdirtyxdata(Memimage *m, Rectangle r)
 96 c66b5250 2006-06-25 devnull {
 97 c66b5250 2006-06-25 devnull 	Xmem *xm;
 98 c66b5250 2006-06-25 devnull 
 99 c66b5250 2006-06-25 devnull 	xm = m->X;
100 c66b5250 2006-06-25 devnull 	if(xm == nil)
101 c66b5250 2006-06-25 devnull 		return;
102 c66b5250 2006-06-25 devnull 
103 c66b5250 2006-06-25 devnull 	xm->dirty = 1;
104 c66b5250 2006-06-25 devnull 	addrect(&xm->dirtyr, r);
105 c66b5250 2006-06-25 devnull }
106 c66b5250 2006-06-25 devnull 
107 c66b5250 2006-06-25 devnull 
108 c66b5250 2006-06-25 devnull