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[libpng15] Changed png_chunk_benign_error() to png_warning() in png.c, in

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png_XYZ_from_xy_checked
This commit is contained in:
Glenn Randers-Pehrson 2011-09-08 12:25:52 -05:00
parent ef43c17bfe
commit b6e4d58e4b
3 changed files with 26 additions and 17 deletions
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18
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.5.5beta07 - September 1, 2011
Libpng 1.5.5beta07 - September 8, 2011
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -71,17 +71,21 @@ Version 1.5.5beta06 [August 26, 2011]
and true grey ones were not gamma corrected (the original value of the
red component was used instead). APIs to get and set cHRM using color
space end points have been added and the rgb_to_gray code that defaults
based on cHRM (introduced in 1.5.4) has been corrected. A considerable
number of tests has been added to pngvalid for the rgb_to_gray transform.
Arithmetic errors in rgb_to_gray whereby the calculated gray value was
based on cHRM, and the divide-by-zero bug in png_handle_cHRM (introduced
in 1.5.4) have been corrected.
A considerable number of tests has been added to pngvalid for the
rgb_to_gray transform.
Arithmetic errors in rgb_to_gray whereby the calculated gray value was
truncated to the bit depth rather than rounded have been fixed except in
the 8-bit non-gamma-corrected case (where consistency seems more important
than correctness.) The code still has considerable inaccuracies in the
8-bit case because 8-bit linear arithmetic is used.
Version 1.5.5beta07 [September 1, 2011]
Added "$(ARCH)" option to makefile.darwin
Added SunOS support to configure.ac and Makefile.am
Version 1.5.5beta07 [September 8, 2011]
Added "$(ARCH)" option to makefile.darwin
Added SunOS support to configure.ac and Makefile.am
Changed png_chunk_benign_error() to png_warning() in png.c, in
png_XYZ_from_xy_checked
Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
(subscription required; visit

19
CHANGES
View File

@ -3377,7 +3377,8 @@ Version 1.5.3beta08 [May 16, 2011]
Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt
The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative
parameters are supplied by the caller), while in the absence of cHRM
sRGB/Rec 709 values are still used.
sRGB/Rec 709 values are still used. This introduced a divide-by-zero
bug in png_handle_cHRM().
The bKGD chunk no longer overwrites the background value set by
png_set_background(), allowing the latter to be used before the file
header is read. It never performed any useful function to override
@ -3554,17 +3555,21 @@ Version 1.5.5beta06 [August 26, 2011]
and true grey ones were not gamma corrected (the original value of the
red component was used instead). APIs to get and set cHRM using color
space end points have been added and the rgb_to_gray code that defaults
based on cHRM (introduced in 1.5.4) has been corrected. A considerable
number of tests has been added to pngvalid for the rgb_to_gray transform.
Arithmetic errors in rgb_to_gray whereby the calculated gray value was
based on cHRM, and the divide-by-zero bug in png_handle_cHRM (introduced
in 1.5.4) have been corrected.
A considerable number of tests has been added to pngvalid for the
rgb_to_gray transform.
Arithmetic errors in rgb_to_gray whereby the calculated gray value was
truncated to the bit depth rather than rounded have been fixed except in
the 8-bit non-gamma-corrected case (where consistency seems more important
than correctness.) The code still has considerable inaccuracies in the
8-bit case because 8-bit linear arithmetic is used.
Version 1.5.5beta07 [September 1, 2011]
Added "$(ARCH)" option to makefile.darwin
Added SunOS support to configure.ac and Makefile.am
Version 1.5.5beta07 [September 8, 2011]
Added "$(ARCH)" option to makefile.darwin
Added SunOS support to configure.ac and Makefile.am
Changed png_chunk_benign_error() to png_warning() in png.c, in
png_XYZ_from_xy_checked
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

6
png.c
View File

@ -617,13 +617,13 @@ png_get_copyright(png_const_structp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
"libpng version 1.5.5beta07 - August 26, 2011" PNG_STRING_NEWLINE \
"libpng version 1.5.5beta07 - September 8, 2011" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2011 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
return "libpng version 1.5.5beta07 - August 26, 2011\
return "libpng version 1.5.5beta07 - September 8, 2011\
Copyright (c) 1998-2011 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -1092,7 +1092,7 @@ int png_XYZ_from_xy_checked(png_structp png_ptr, png_XYZ *XYZ, png_xy xy)
* overflow while trying to get XYZ values out of it. This is
* entirely benign - the cHRM chunk is pretty extreme.
*/
png_chunk_benign_error(png_ptr,
png_warning(png_ptr,
"extreme cHRM chunk cannot be converted to tristimulus values");
break;