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[libpng16] Imported from libpng-1.6.7beta04.tar

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Glenn Randers-Pehrson
2013-10-26 11:29:36 -05:00
parent fd8bba4b80
commit e9a8fb8d07
15 changed files with 52 additions and 46 deletions
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19
libpng-manual.txt
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@@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.6.7beta04 - October 19, 2013
libpng version 1.6.7beta04 - October 26, 2013
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2013 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.6.7beta04 - October 19, 2013
libpng versions 0.97, January 1998, through 1.6.7beta04 - October 26, 2013
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2013 Glenn Randers-Pehrson
@@ -5015,10 +5015,11 @@ where "rp" indicates a "restricted pointer".
Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now rejected, in particular the
very old broken Microsoft/HP sRGB profile. The PNG spec requirement that
only grayscale profiles may appear in images with color type 0 or 4 and that
even if the image only contains gray pixels, only RGB profiles may appear
profiles that were previously accepted are now accepted with a warning or
rejected, depending upon the png_set_benign_errors() setting, in particular the
very old broken Microsoft/HP 3144-byte sRGB profile. The PNG spec requirement
that only grayscale profiles may appear in images with color type 0 or 4 and
that even if the image only contains gray pixels, only RGB profiles may appear
in images with color type 2, 3, or 6, is now enforced. The sRGB chunk
is allowed to appear in images with any color type.
@@ -5027,7 +5028,9 @@ an empty language field or an empty translated keyword. Both of these
are allowed by the PNG specification, so these warnings are no longer issued.
The library now issues an error if the application attempts to set a
transform after it calls png_read_update_info().
transform after it calls png_read_update_info() or if it attempts to call
both png_read_update_info() and png_start_read_image() or to call either
of them more than once.
The default condition for benign_errors is now to treat benign errors as
warnings while reading and as errors while writing.
@@ -5229,7 +5232,7 @@ Other rules can be inferred by inspecting the libpng source.
XVI. Y2K Compliance in libpng
October 19, 2013
October 26, 2013
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.