1 #include "lib9.h"
2 #include "draw.h"
3
4 void
_setdrawop(Display * d,Drawop op)5 _setdrawop(Display *d, Drawop op)
6 {
7 uchar *a;
8
9 if(op != SoverD){
10 a = bufimage(d, 1+1);
11 if(a == 0)
12 return;
13 a[0] = 'O';
14 a[1] = op;
15 }
16 }
17
18 static void
draw1(Image * dst,Rectangle * r,Image * src,Point * p0,Image * mask,Point * p1,Drawop op)19 draw1(Image *dst, Rectangle *r, Image *src, Point *p0, Image *mask, Point *p1, Drawop op)
20 {
21 uchar *a;
22
23 _setdrawop(dst->display, op);
24
25 a = bufimage(dst->display, 1+4+4+4+4*4+2*4+2*4);
26 if(a == 0)
27 return;
28 if(src == nil)
29 src = dst->display->black;
30 if(mask == nil)
31 mask = dst->display->opaque;
32 a[0] = 'd';
33 BPLONG(a+1, dst->id);
34 BPLONG(a+5, src->id);
35 BPLONG(a+9, mask->id);
36 BPLONG(a+13, r->min.x);
37 BPLONG(a+17, r->min.y);
38 BPLONG(a+21, r->max.x);
39 BPLONG(a+25, r->max.y);
40 BPLONG(a+29, p0->x);
41 BPLONG(a+33, p0->y);
42 BPLONG(a+37, p1->x);
43 BPLONG(a+41, p1->y);
44 }
45
46 void
draw(Image * dst,Rectangle r,Image * src,Image * mask,Point p1)47 draw(Image *dst, Rectangle r, Image *src, Image *mask, Point p1)
48 {
49 draw1(dst, &r, src, &p1, mask, &p1, SoverD);
50 }
51
52 void
drawop(Image * dst,Rectangle r,Image * src,Image * mask,Point p1,Drawop op)53 drawop(Image *dst, Rectangle r, Image *src, Image *mask, Point p1, Drawop op)
54 {
55 draw1(dst, &r, src, &p1, mask, &p1, op);
56 }
57
58 void
gendraw(Image * dst,Rectangle r,Image * src,Point p0,Image * mask,Point p1)59 gendraw(Image *dst, Rectangle r, Image *src, Point p0, Image *mask, Point p1)
60 {
61 draw1(dst, &r, src, &p0, mask, &p1, SoverD);
62 }
63
64 void
gendrawop(Image * dst,Rectangle r,Image * src,Point p0,Image * mask,Point p1,Drawop op)65 gendrawop(Image *dst, Rectangle r, Image *src, Point p0, Image *mask, Point p1, Drawop op)
66 {
67 draw1(dst, &r, src, &p0, mask, &p1, op);
68 }
69