commit 2ad31ae31f47d788b0ee83a708654f26e2edfebb
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Dec 15 08:54:42 2000 -0600
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Mon Apr 06 16:05:43 2009 -0500
tree b790ae17d6be5baf86356fec7c77a4c57609d4d8
parent f6b4f45c7e9ee5472594934c4d9dfba16157e7cb

Imported from libpng-1.0.9beta5.tar

pngwutil.c

diff --git a/pngwutil.c b/pngwutil.c
index d3415f5..4d669da 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * libpng 1.0.9beta4 - December 1, 2000
+ * libpng 1.0.9beta5 - December 15, 2000
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -419,7 +419,12 @@
       compression_type = PNG_COMPRESSION_TYPE_BASE;
    }
 
-   if (filter_type != PNG_FILTER_TYPE_BASE)
+   if (
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+      !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+      (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) &&
+#endif
+      filter_type != PNG_FILTER_TYPE_BASE)
    {
       png_warning(png_ptr, "Invalid filter type specified");
       filter_type = PNG_FILTER_TYPE_BASE;
@@ -440,6 +445,7 @@
    png_ptr->bit_depth = (png_byte)bit_depth;
    png_ptr->color_type = (png_byte)color_type;
    png_ptr->interlaced = (png_byte)interlace_type;
+   png_ptr->filter_type = (png_byte)filter_type;
    png_ptr->width = width;
    png_ptr->height = height;