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[libpng16] Document PNG_RELEASE_BUILD in the man page.

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Glenn Randers-Pehrson
2015-05-06 20:31:21 -05:00
parent 8ee821e69a
commit 2d069831fb
2 changed files with 44 additions and 10 deletions
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23
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 1.6.18beta04 - May 6, 2015
libpng version 1.6.18beta04 - May 7, 2015
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2015 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 1.6.18beta04 - May 6, 2015
libpng versions 0.97, January 1998, through 1.6.18beta04 - May 7, 2015
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2015 Glenn Randers-Pehrson
@@ -5110,6 +5110,23 @@ length, which resulted in PNG files that cannot be read beyond the bad iTXt
chunk. This error was fixed in libpng-1.6.3, and a tool (called
contrib/tools/png-fix-itxt) has been added to the libpng distribution.
Starting with libpng-1.6.17, the PNG_SAFE_LIMITS macro was eliminated
and safe limits are used by default (users who need larger limits
can still override them at compile time or run time, as described above).
The new limits are
default spec limit
png_user_width_max 1,000,000 2,147,483,647
png_user_height_max 1,000,000 2,147,483,647
png_user_chunk_cache_max 128 unlimited
png_user_chunk_malloc_max 8,000,000 unlimited
Starting with libpng-1.6.18, a PNG_RELEASE_BUILD macro was added, which allows
library builders to control compilation for an installed system (a release build).
It can be set for testing debug or beta builds to ensure that they will compile
when the build type is switched to RC or STABLE. In essence this overrides the
PNG_LIBPNG_BUILD_BASE_TYPE definition which is not directly user controllable.
XIII. Detecting libpng
The png_get_io_ptr() function has been present since libpng-0.88, has never
@@ -5280,7 +5297,7 @@ Other rules can be inferred by inspecting the libpng source.
XVI. Y2K Compliance in libpng
May 6, 2015
May 7, 2015
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.