Initial import.
diff --git a/src/libdraw/draw.c b/src/libdraw/draw.c
new file mode 100644
index 0000000..d3f83e8
--- /dev/null
+++ b/src/libdraw/draw.c
@@ -0,0 +1,69 @@
+#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);
+}
