Import sources from 2011-03-30 iso image

1 files changed, 35 insertions, 0 deletions

diff --git a/sys/src/libdraw/line.c b/sys/src/libdraw/line.c
new file mode 100755
index 000000000..a06b5927e
--- /dev/null
+++ b/sys/src/libdraw/line.c
@@ -0,0 +1,35 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+
+void
+line(Image *dst, Point p0, Point p1, int end0, int end1, int radius, Image *src, Point sp)
+{
+	lineop(dst, p0, p1, end0, end1, radius, src, sp, SoverD);
+}
+
+void
+lineop(Image *dst, Point p0, Point p1, int end0, int end1, int radius, Image *src, Point sp, Drawop op)
+{
+	uchar *a;
+
+	_setdrawop(dst->display, op);
+
+	a = bufimage(dst->display, 1+4+2*4+2*4+4+4+4+4+2*4);
+	if(a == 0){
+		fprint(2, "image line: %r\n");
+		return;
+	}
+	a[0] = 'L';
+	BPLONG(a+1, dst->id);
+	BPLONG(a+5, p0.x);
+	BPLONG(a+9, p0.y);
+	BPLONG(a+13, p1.x);
+	BPLONG(a+17, p1.y);
+	BPLONG(a+21, end0);
+	BPLONG(a+25, end1);
+	BPLONG(a+29, radius);
+	BPLONG(a+33, src->id);
+	BPLONG(a+37, sp.x);
+	BPLONG(a+41, sp.y);
+}