diff options
Diffstat (limited to 'plugins/AdvaImg/src/LibPNG/pngwtran.c')
| -rw-r--r-- | plugins/AdvaImg/src/LibPNG/pngwtran.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/plugins/AdvaImg/src/LibPNG/pngwtran.c b/plugins/AdvaImg/src/LibPNG/pngwtran.c index b598149a96..e962b68353 100644 --- a/plugins/AdvaImg/src/LibPNG/pngwtran.c +++ b/plugins/AdvaImg/src/LibPNG/pngwtran.c @@ -1,8 +1,8 @@ /* pngwtran.c - transforms the data in a row for PNG writers
*
- * Last changed in libpng 1.5.6 [November 3, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.13 [September 27, 2012]
+ * Copyright (c) 1998-2012 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -45,8 +45,20 @@ png_do_write_transformations(png_structp png_ptr, png_row_infop row_info) #ifdef PNG_WRITE_FILLER_SUPPORTED
if (png_ptr->transformations & PNG_FILLER)
- png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
+ {
+ if (png_ptr->color_type & (PNG_COLOR_MASK_ALPHA|PNG_COLOR_MASK_PALETTE))
+ {
+ /* GA, RGBA or palette; in any of these cases libpng will not do the
+ * the correct thing (whatever that might be).
+ */
+ png_warning(png_ptr, "incorrect png_set_filler call ignored");
+ png_ptr->transformations &= ~PNG_FILLER;
+ }
+
+ else
+ png_do_strip_channel(row_info, png_ptr->row_buf + 1,
+ !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
+ }
#endif
#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
|