1 76193d7c 2003-09-30 devnull #include "x11-inc.h"
  2 76193d7c 2003-09-30 devnull 
  3 76193d7c 2003-09-30 devnull #include <u.h>
  4 76193d7c 2003-09-30 devnull #include <libc.h>
  5 76193d7c 2003-09-30 devnull #include <draw.h>
  6 76193d7c 2003-09-30 devnull #include <memdraw.h>
  7 76193d7c 2003-09-30 devnull #include "x11-memdraw.h"
  8 76193d7c 2003-09-30 devnull 
  9 76193d7c 2003-09-30 devnull static void
 10 76193d7c 2003-09-30 devnull addrect(Rectangle *rp, Rectangle r)
 11 76193d7c 2003-09-30 devnull {
 12 76193d7c 2003-09-30 devnull 	if(rp->min.x >= rp->max.x)
 13 76193d7c 2003-09-30 devnull 		*rp = r;
 14 76193d7c 2003-09-30 devnull 	else
 15 76193d7c 2003-09-30 devnull 		combinerect(rp, r);
 16 76193d7c 2003-09-30 devnull }
 17 76193d7c 2003-09-30 devnull 
 18 76193d7c 2003-09-30 devnull XImage*
 19 76193d7c 2003-09-30 devnull xgetxdata(Memimage *m, Rectangle r)
 20 76193d7c 2003-09-30 devnull {
 21 76193d7c 2003-09-30 devnull 	int x, y;
 22 76193d7c 2003-09-30 devnull 	uchar *p;
 23 76193d7c 2003-09-30 devnull 	Point tp, xdelta, delta;
 24 76193d7c 2003-09-30 devnull 	Xmem *xm;
 25 76193d7c 2003-09-30 devnull 	
 26 76193d7c 2003-09-30 devnull 	xm = m->X;
 27 76193d7c 2003-09-30 devnull 	if(xm == nil)
 28 76193d7c 2003-09-30 devnull 		return nil;
 29 76193d7c 2003-09-30 devnull 
 30 76193d7c 2003-09-30 devnull 	if(xm->dirty == 0)
 31 76193d7c 2003-09-30 devnull 		return xm->xi;
 32 76193d7c 2003-09-30 devnull 
 33 98014aa5 2003-10-03 devnull 	abort();	/* should never call this now */
 34 98014aa5 2003-10-03 devnull 
 35 76193d7c 2003-09-30 devnull 	r = xm->dirtyr;
 36 76193d7c 2003-09-30 devnull 	if(Dx(r)==0 || Dy(r)==0)
 37 76193d7c 2003-09-30 devnull 		return xm->xi;
 38 76193d7c 2003-09-30 devnull 
 39 76193d7c 2003-09-30 devnull 	delta = subpt(r.min, m->r.min);
 40 76193d7c 2003-09-30 devnull 
 41 76193d7c 2003-09-30 devnull 	tp = xm->r.min;	/* need temp for Digital UNIX */
 42 76193d7c 2003-09-30 devnull 	xdelta = subpt(r.min, tp);
 43 76193d7c 2003-09-30 devnull 
 44 76193d7c 2003-09-30 devnull 	XGetSubImage(_x.display, xm->pixmap, delta.x, delta.y, Dx(r), Dy(r),
 45 76193d7c 2003-09-30 devnull 		AllPlanes, ZPixmap, xm->xi, xdelta.x, delta.y);
 46 76193d7c 2003-09-30 devnull 
 47 76193d7c 2003-09-30 devnull 	if(_x.usetable && m->chan==CMAP8){
 48 76193d7c 2003-09-30 devnull 		for(y=r.min.y; y<r.max.y; y++)
 49 76193d7c 2003-09-30 devnull 		for(x=r.min.x, p=byteaddr(m, Pt(x,y)); x<r.max.x; x++, p++)
 50 76193d7c 2003-09-30 devnull 			*p = _x.toplan9[*p];
 51 76193d7c 2003-09-30 devnull 	}
 52 76193d7c 2003-09-30 devnull 	xm->dirty = 0;
 53 76193d7c 2003-09-30 devnull 	xm->dirtyr = Rect(0,0,0,0);
 54 76193d7c 2003-09-30 devnull 	return xm->xi;
 55 76193d7c 2003-09-30 devnull }
 56 76193d7c 2003-09-30 devnull 
 57 76193d7c 2003-09-30 devnull void
 58 76193d7c 2003-09-30 devnull xputxdata(Memimage *m, Rectangle r)
 59 76193d7c 2003-09-30 devnull {
 60 76193d7c 2003-09-30 devnull 	int offset, x, y;
 61 76193d7c 2003-09-30 devnull 	uchar *p;
 62 76193d7c 2003-09-30 devnull 	Point tp, xdelta, delta;
 63 76193d7c 2003-09-30 devnull 	Xmem *xm;
 64 76193d7c 2003-09-30 devnull 	XGC gc;
 65 76193d7c 2003-09-30 devnull 	XImage *xi;
 66 76193d7c 2003-09-30 devnull 
 67 76193d7c 2003-09-30 devnull 	xm = m->X;
 68 76193d7c 2003-09-30 devnull 	if(xm == nil)
 69 76193d7c 2003-09-30 devnull 		return;
 70 76193d7c 2003-09-30 devnull 
 71 76193d7c 2003-09-30 devnull 	xi = xm->xi;
 72 76193d7c 2003-09-30 devnull 	gc = m->chan==GREY1 ? _x.gccopy0 : _x.gccopy;
 73 76193d7c 2003-09-30 devnull 	if(m->depth == 24)
 74 76193d7c 2003-09-30 devnull 		offset = r.min.x & 3;
 75 76193d7c 2003-09-30 devnull 	else
 76 76193d7c 2003-09-30 devnull 		offset = r.min.x & (31/m->depth);
 77 76193d7c 2003-09-30 devnull 
 78 76193d7c 2003-09-30 devnull 	delta = subpt(r.min, m->r.min);
 79 76193d7c 2003-09-30 devnull 
 80 76193d7c 2003-09-30 devnull 	tp = xm->r.min;	/* need temporary on Digital UNIX */
 81 76193d7c 2003-09-30 devnull 	xdelta = subpt(r.min, tp);
 82 76193d7c 2003-09-30 devnull 
 83 76193d7c 2003-09-30 devnull 	if(_x.usetable && m->chan==CMAP8){
 84 76193d7c 2003-09-30 devnull 		for(y=r.min.y; y<r.max.y; y++)
 85 76193d7c 2003-09-30 devnull 		for(x=r.min.x, p=byteaddr(m, Pt(x,y)); x<r.max.x; x++, p++)
 86 76193d7c 2003-09-30 devnull 			*p = _x.tox11[*p];
 87 76193d7c 2003-09-30 devnull 	}
 88 76193d7c 2003-09-30 devnull 
 89 76193d7c 2003-09-30 devnull 	XPutImage(_x.display, xm->pixmap, gc, xi, xdelta.x, xdelta.y, delta.x, delta.y,
 90 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r));
 91 76193d7c 2003-09-30 devnull 	
 92 76193d7c 2003-09-30 devnull 	if(_x.usetable && m->chan==CMAP8){
 93 76193d7c 2003-09-30 devnull 		for(y=r.min.y; y<r.max.y; y++)
 94 76193d7c 2003-09-30 devnull 		for(x=r.min.x, p=byteaddr(m, Pt(x,y)); x<r.max.x; x++, p++)
 95 76193d7c 2003-09-30 devnull 			*p = _x.toplan9[*p];
 96 76193d7c 2003-09-30 devnull 	}
 97 76193d7c 2003-09-30 devnull }
 98 76193d7c 2003-09-30 devnull 
 99 76193d7c 2003-09-30 devnull void
100 76193d7c 2003-09-30 devnull xdirtyxdata(Memimage *m, Rectangle r)
101 76193d7c 2003-09-30 devnull {
102 76193d7c 2003-09-30 devnull 	Xmem *xm;
103 76193d7c 2003-09-30 devnull 
104 76193d7c 2003-09-30 devnull 	xm = m->X;
105 76193d7c 2003-09-30 devnull 	if(xm == nil)
106 76193d7c 2003-09-30 devnull 		return;
107 98014aa5 2003-10-03 devnull 
108 76193d7c 2003-09-30 devnull 	xm->dirty = 1;
109 76193d7c 2003-09-30 devnull 	addrect(&xm->dirtyr, r);
110 76193d7c 2003-09-30 devnull }
111 76193d7c 2003-09-30 devnull 
112 76193d7c 2003-09-30 devnull 
113 76193d7c 2003-09-30 devnull