From e421403f3d742992bedb07b084ac6f492fd132c3 Mon Sep 17 00:00:00 2001
From: Dane Springmeyer <dane@mapbox.com>
Date: Wed, 11 Jun 2014 22:43:05 -0700
Subject: [PATCH] fix miniz encoder - closes #1560

---
 src/miniz_png.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/miniz_png.cpp b/src/miniz_png.cpp
index 957dc8757..5426fb63a 100644
--- a/src/miniz_png.cpp
+++ b/src/miniz_png.cpp
@@ -56,7 +56,11 @@ PNGWriter::PNGWriter(int level, int strategy)
     {
         throw std::runtime_error("compression level must be between 0 and 10");
     }
-    mz_uint flags = s_tdefl_num_probes[level] | (level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0 | TDEFL_WRITE_ZLIB_HEADER;
+    mz_uint flags = s_tdefl_num_probes[level] | TDEFL_WRITE_ZLIB_HEADER;
+    if (level <= 3)
+    {
+        flags |= TDEFL_GREEDY_PARSING_FLAG;
+    }
     if (strategy == Z_FILTERED) flags |= TDEFL_FILTER_MATCHES;
     else if (strategy == Z_HUFFMAN_ONLY) flags &= ~TDEFL_MAX_PROBES_MASK;
     else if (strategy == Z_RLE) flags |= TDEFL_RLE_MATCHES;