removing (outdated) drawterm

drawterm is much better maintained by russ cox,
so removing this outdated copy.

for a more recent version, go to:

http://swtch.com/drawterm/

1 files changed, 0 insertions, 122 deletions

diff --git a/sys/src/cmd/unix/drawterm/libmemlayer/line.c b/sys/src/cmd/unix/drawterm/libmemlayer/line.c
deleted file mode 100644
index 8c09a5359..000000000
--- a/sys/src/cmd/unix/drawterm/libmemlayer/line.c
+++ /dev/null
@@ -1,122 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <draw.h>
-#include <memdraw.h>
-#include <memlayer.h>
-
-struct Lline
-{
-	Point			p0;
-	Point			p1;
-	Point			delta;
-	int			end0;
-	int			end1;
-	int			radius;
-	Point			sp;
-	Memlayer		*dstlayer;
-	Memimage	*src;
-	int			op;
-};
-
-static void llineop(Memimage*, Rectangle, Rectangle, void*, int);
-
-static
-void
-_memline(Memimage *dst, Point p0, Point p1, int end0, int end1, int radius, Memimage *src, Point sp, Rectangle clipr, int op)
-{
-	Rectangle r;
-	struct Lline ll;
-	Point d;
-	int srcclipped;
-	Memlayer *dl;
-
-	if(radius < 0)
-		return;
-	if(src->layer)	/* can't draw line with layered source */
-		return;
-	srcclipped = 0;
-
-   Top:
-	dl = dst->layer;
-	if(dl == nil){
-		_memimageline(dst, p0, p1, end0, end1, radius, src, sp, clipr, op);
-		return;
-	}
-	if(!srcclipped){
-		d = subpt(sp, p0);
-		if(rectclip(&clipr, rectsubpt(src->clipr, d)) == 0)
-			return;
-		if((src->flags&Frepl)==0 && rectclip(&clipr, rectsubpt(src->r, d))==0)
-			return;
-		srcclipped = 1;
-	}
-
-	/* dst is known to be a layer */
-	p0.x += dl->delta.x;
-	p0.y += dl->delta.y;
-	p1.x += dl->delta.x;
-	p1.y += dl->delta.y;
-	clipr.min.x += dl->delta.x;
-	clipr.min.y += dl->delta.y;
-	clipr.max.x += dl->delta.x;
-	clipr.max.y += dl->delta.y;
-	if(dl->clear){
-		dst = dst->layer->screen->image;
-		goto Top;
-	}
-
-	/* XXX */
-	/* this is not the correct set of tests */
-//	if(log2[dst->depth] != log2[src->depth] || log2[dst->depth]!=3)
-//		return;
-
-	/* can't use sutherland-cohen clipping because lines are wide */
-	r = memlinebbox(p0, p1, end0, end1, radius);
-	/*
-	 * r is now a bounding box for the line;
-	 * use it as a clipping rectangle for subdivision
-	 */
-	if(rectclip(&r, clipr) == 0)
-		return;
-	ll.p0 = p0;
-	ll.p1 = p1;
-	ll.end0 = end0;
-	ll.end1 = end1;
-	ll.sp = sp;
-	ll.dstlayer = dst->layer;
-	ll.src = src;
-	ll.radius = radius;
-	ll.delta = dl->delta;
-	ll.op = op;
-	_memlayerop(llineop, dst, r, r, &ll);
-}
-
-static
-void
-llineop(Memimage *dst, Rectangle screenr, Rectangle clipr, void *etc, int insave)
-{
-	struct Lline *ll;
-	Point p0, p1;
-
-	USED(screenr.min.x);
-	ll = etc;
-	if(insave && ll->dstlayer->save==nil)
-		return;
-	if(!rectclip(&clipr, screenr))
-		return;
-	if(insave){
-		p0 = subpt(ll->p0, ll->delta);
-		p1 = subpt(ll->p1, ll->delta);
-		clipr = rectsubpt(clipr, ll->delta);
-	}else{
-		p0 = ll->p0;
-		p1 = ll->p1;
-	}
-	_memline(dst, p0, p1, ll->end0, ll->end1, ll->radius, ll->src, ll->sp, clipr, ll->op);
-}
-
-void
-memline(Memimage *dst, Point p0, Point p1, int end0, int end1, int radius, Memimage *src, Point sp, int op)
-{
-	_memline(dst, p0, p1, end0, end1, radius, src, sp, dst->clipr, op);
-}