From 75186be2c2aa5566f3c490e087c24e12c872216e Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sun, 28 Feb 2016 01:38:29 +0100
Subject: [PATCH] libdraw: remove unused static log2[] array

---
 sys/include/draw.h         | 4 +---
 sys/src/libdraw/arith.c    | 6 ------
 sys/src/libmemlayer/line.c | 5 -----
 3 files changed, 1 insertion(+), 14 deletions(-)

diff --git a/sys/include/draw.h b/sys/include/draw.h
index e83ba72f4..5c4f9608a 100644
--- a/sys/include/draw.h
+++ b/sys/include/draw.h
@@ -521,7 +521,5 @@ extern	void	_setdrawop(Display*, Drawop);
 extern	void	_twiddlecompressed(uchar*, int);
 extern	int	_compblocksize(Rectangle, int);
 
-/* XXX backwards helps; should go */
-// extern	int		log2[];	/* was used by libmemlayer/line.c */
 extern	ulong	drawld2chan[];
-extern	void		drawsetdebug(int);
+extern	void	drawsetdebug(int);
diff --git a/sys/src/libdraw/arith.c b/sys/src/libdraw/arith.c
index 893f39ced..93d95d5ac 100644
--- a/sys/src/libdraw/arith.c
+++ b/sys/src/libdraw/arith.c
@@ -166,12 +166,6 @@ ulong drawld2chan[] = {
 	CMAP8,
 };
 
-/*
- * was used by libmemlayer/line.c; made static, instead of deleting it,
- * to avoid updating many binaries on sources.
- */
-static int log2[] = { -1, 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1, 4, -1, -1, -1, -1, -1, -1, -1, 4 /* BUG */, -1, -1, -1, -1, -1, -1, -1, 5 };
-
 ulong
 setalpha(ulong color, uchar alpha)
 {
diff --git a/sys/src/libmemlayer/line.c b/sys/src/libmemlayer/line.c
index 8c09a5359..2dc52aa38 100644
--- a/sys/src/libmemlayer/line.c
+++ b/sys/src/libmemlayer/line.c
@@ -65,11 +65,6 @@ _memline(Memimage *dst, Point p0, Point p1, int end0, int end1, int radius, Memi
 		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);
 	/*
-- 
2.44.0