From 1ad0f0f68f823472e3152db1b45a7891960c39e0 Mon Sep 17 00:00:00 2001
From: adam <adam>
Date: Mon, 19 Mar 2012 12:39:29 +0000
Subject: Added patch: fix colour reduction bug.

---
 graphics/optipng/distinfo                              |  3 ++-
 graphics/optipng/patches/patch-src_optipng_opngreduc.c | 17 +++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 graphics/optipng/patches/patch-src_optipng_opngreduc.c

(limited to 'graphics/optipng')

diff --git a/graphics/optipng/distinfo b/graphics/optipng/distinfo
index cb75073abf1..e8321821192 100644
--- a/graphics/optipng/distinfo
+++ b/graphics/optipng/distinfo
@@ -1,5 +1,6 @@
-$NetBSD: distinfo,v 1.19 2012/03/07 09:11:43 adam Exp $
+$NetBSD: distinfo,v 1.20 2012/03/19 12:39:29 adam Exp $
 
 SHA1 (optipng-0.7.tar.gz) = 68122f8cdd279312a4d4cde53a48286ded680f06
 RMD160 (optipng-0.7.tar.gz) = 5a4ef72c786ac28a44d6f0e5335c65484767c461
 Size (optipng-0.7.tar.gz) = 1607303 bytes
+SHA1 (patch-src_optipng_opngreduc.c) = 67b404f6d71133a6a585e1d18b321cafe54d4422
diff --git a/graphics/optipng/patches/patch-src_optipng_opngreduc.c b/graphics/optipng/patches/patch-src_optipng_opngreduc.c
new file mode 100644
index 00000000000..ce3a060bbaf
--- /dev/null
+++ b/graphics/optipng/patches/patch-src_optipng_opngreduc.c
@@ -0,0 +1,17 @@
+$NetBSD: patch-src_optipng_opngreduc.c,v 1.1 2012/03/19 12:39:55 adam Exp $
+
+Fix colour reduction bug.
+
+--- src/optipng/opngreduc.c.orig	2012-03-19 12:22:37.000000000 +0000
++++ src/optipng/opngreduc.c
+@@ -1207,7 +1207,10 @@ opng_reduce_palette(png_structp png_ptr,
+    }
+ 
+    if (reductions & OPNG_REDUCE_8_TO_4_2_1)
++   {
+       result |= opng_reduce_palette_bits(png_ptr, info_ptr, reductions);
++      bit_depth = png_get_bit_depth(png_ptr, info_ptr);
++   }
+    if ((bit_depth < 8) || !is_gray)
+       return result;
+ 
-- 
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