[devel] Comment about 1.4.0 through 1.4.4 versions of png_get_uint_16 macro
which returned the wrong type (png_uint_32 instead of png_uint_16).
diff --git a/png.h b/png.h
index bf02398..6a5309d 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
- * libpng version 1.5.0beta56 - November 21, 2010
+ * libpng version 1.5.0beta56 - November 25, 2010
* Copyright (c) 1998-2010 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.)
@@ -11,7 +11,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.5.0beta56 - November 21, 2010: Glenn
+ * libpng versions 0.97, January 1998, through 1.5.0beta56 - November 25, 2010: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -173,7 +173,7 @@
*
* This code is released under the libpng license.
*
- * libpng versions 1.2.6, August 15, 2004, through 1.5.0beta56, November 21, 2010, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.0beta56, November 25, 2010, are
* Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@@ -285,7 +285,7 @@
* Y2K compliance in libpng:
* =========================
*
- * November 21, 2010
+ * November 25, 2010
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
@@ -349,7 +349,7 @@
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.5.0beta56"
#define PNG_HEADER_VERSION_STRING \
- " libpng version 1.5.0beta56 - November 21, 2010\n"
+ " libpng version 1.5.0beta56 - November 25, 2010\n"
#define PNG_LIBPNG_VER_SONUM 15
#define PNG_LIBPNG_VER_DLLNUM 15
@@ -2044,10 +2044,15 @@
((png_uint_32)(*((buf) + 1)) << 16) + \
((png_uint_32)(*((buf) + 2)) << 8) + \
((png_uint_32)(*((buf) + 3))))
+
+ /* From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the
+ * function) incorrectly returned a value of type png_uint_32.
+ */
# define png_get_uint_16(buf) \
((png_uint_16) \
(((unsigned int)(*(buf)) << 8) + \
((unsigned int)(*((buf) + 1)))))
+
# define png_get_int_32(buf) \
((png_int_32)((*(buf) & 0x80) \
? -((png_int_32)((png_get_uint_32(buf) ^ 0xffffffffL) + 1)) \
