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-rw-r--r--pngread.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/pngread.c b/pngread.c
index 69ee464b2..2197ff178 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,8 +1,8 @@
/* pngread.c - read a PNG file
*
- * Last changed in libpng 1.2.48 [March 8, 2012]
- * Copyright (c) 1998-2012 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.51 [February 6, 2014]
+ * Copyright (c) 1998-2014 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.)
*
@@ -1405,7 +1405,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
if (transforms & PNG_TRANSFORM_EXPAND)
if ((png_ptr->bit_depth < 8) ||
(png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ||
- (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)))
+ (info_ptr->valid & PNG_INFO_tRNS))
png_set_expand(png_ptr);
#endif
@@ -1424,14 +1424,8 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
* [0,65535] to the original [0,7] or [0,31], or whatever range the
* colors were originally in:
*/
- if ((transforms & PNG_TRANSFORM_SHIFT)
- && png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT))
- {
- png_color_8p sig_bit;
-
- png_get_sBIT(png_ptr, info_ptr, &sig_bit);
- png_set_shift(png_ptr, sig_bit);
- }
+ if ((transforms & PNG_TRANSFORM_SHIFT) && (info_ptr->valid & PNG_INFO_sBIT))
+ png_set_shift(png_ptr, &info_ptr->sig_bit);
#endif
#ifdef PNG_READ_BGR_SUPPORTED
@@ -1506,8 +1500,8 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
/* Read rest of file, and get additional chunks in info_ptr - REQUIRED */
png_read_end(png_ptr, info_ptr);
- transforms = transforms; /* Quiet compiler warnings */
- params = params;
+ PNG_UNUSED(transforms) /* Quiet compiler warnings */
+ PNG_UNUSED(params)
}
#endif /* PNG_INFO_IMAGE_SUPPORTED */