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- #include <u.h>
- #include <libc.h>
- #include <draw.h>
- void
- _setdrawop(Display *d, Drawop op)
- {
- uchar *a;
- if(op != SoverD){
- a = bufimage(d, 1+1);
- if(a == 0)
- return;
- a[0] = 'O';
- a[1] = op;
- }
- }
-
- static void
- draw1(Image *dst, Rectangle *r, Image *src, Point *p0, Image *mask, Point *p1, Drawop op)
- {
- uchar *a;
- _setdrawop(dst->display, op);
- a = bufimage(dst->display, 1+4+4+4+4*4+2*4+2*4);
- if(a == 0)
- 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);
- }
- void
- draw(Image *dst, Rectangle r, Image *src, Image *mask, Point p1)
- {
- draw1(dst, &r, src, &p1, mask, &p1, SoverD);
- }
- void
- drawop(Image *dst, Rectangle r, Image *src, Image *mask, Point p1, Drawop op)
- {
- draw1(dst, &r, src, &p1, mask, &p1, op);
- }
- void
- gendraw(Image *dst, Rectangle r, Image *src, Point p0, Image *mask, Point p1)
- {
- draw1(dst, &r, src, &p0, mask, &p1, SoverD);
- }
- void
- gendrawop(Image *dst, Rectangle r, Image *src, Point p0, Image *mask, Point p1, Drawop op)
- {
- draw1(dst, &r, src, &p0, mask, &p1, op);
- }
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