mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
[libpng17] Update CHANGES and ANNOUNCE
This commit is contained in:
Glenn Randers-Pehrson
39
ANNOUNCE
39
ANNOUNCE
@@ -1,5 +1,5 @@
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Libpng 1.7.0beta81 - May 17, 2016
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Libpng 1.7.0beta81 - May 21, 2016
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This is not intended to be a public release. It will be replaced
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within a few weeks by a public version or by another test version.
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@@ -1290,9 +1290,44 @@ Version 1.7.0beta80 [May 6, 2016]
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unreachable code in pz_default_settings and eliminated a spurious
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warning in pngcp for small files.
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Version 1.7.0beta81 [May 16, 2016]
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Version 1.7.0beta81 [May 21, 2016]
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Check for CLOCK_PROCESS_CPUTIME_ID when building /contrib/libtests/timepng.
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Otherwise it does not build on platforms that don't supply clock_gettime().
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Add check for clock_gettime() in Makefile.am and configure.ac
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Reenabled filter selection (dummy). This implements the code for
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row-by-row filter selection but does not provide an actual implementation;
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the selection function just chooses the lowest set filter bit.
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Fixed a signed/unsigned warning (GCC 4.8.5) in pngwutil.c
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Implemented base filter selection with row buffering and a crude code-count
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algorithm.
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Added filter selection, palette index checks. Palette index checking:
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checking on read was erroneously skipped. pngcp can now turn off the
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palette index checking or fix the errors (mainly to allow comparison with
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libpng 1.6, which defaulted to ignoring it). The API now documents how
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the 'enabled' parameter works. On read the check is on by default (it
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was apparently off in libpng 1.6) however now if explicitly turned on the
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warning message is stopped; this provides better interaction with
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get_palette_max at the cost of a small API change (may need to be reviewed.)
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Palette size errors: invalid entries in the palette are now set to #beaded to
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make the errors more obvious and allow easy detection in memory.
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Read transform pipeline caching: changes to fix the palette index check
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(which are erroneously cached), the pipeline can now contain multiple
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caches, e.g., caching of packing of palette indices can be combined with
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caching of palette RGB transforms.
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Read code now checks for callbacks to read 0 data (and faults them).
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Fixed the reading of PNGs with multiple 0 length IDATs that failed as a
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result plus the handling of zero length unknown (which occurs, validly;
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the spurious warning has been removed).
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Filter selection: the 1.6 and earlier sum of absolute differences algorithm
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has been reintroduced with an option to disfavor some filters over others
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where the sums are close (not yet exposed). The selection code also logs
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the last known occurence of each possible byte code across multiple lines.
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This allows detection of PNG images with lower bit depth than the format
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implies and, therefore, allows the filtering to be turned off in those
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cases as well.
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The default write zlib settings are still lower than libpng16. The
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selection algorithm is being refined (the overall results are worse than
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not doing any filtering).
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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37
CHANGES
37
CHANGES
@@ -5590,9 +5590,44 @@ Version 1.7.0beta80 [May 6, 2016]
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unreachable code in pz_default_settings and eliminated a spurious
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warning in pngcp for small files.
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Version 1.7.0beta81 [May 16, 2016]
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Version 1.7.0beta81 [May 21, 2016]
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Check for CLOCK_PROCESS_CPUTIME_ID when building /contrib/libtests/timepng.
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Otherwise it does not build on platforms that don't supply clock_gettime().
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Add check for clock_gettime() in Makefile.am and configure.ac
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Reenabled filter selection (dummy). This implements the code for
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row-by-row filter selection but does not provide an actual implementation;
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the selection function just chooses the lowest set filter bit.
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Fixed a signed/unsigned warning (GCC 4.8.5) in pngwutil.c
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Implemented base filter selection with row buffering and a crude code-count
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algorithm.
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Added filter selection, palette index checks. Palette index checking:
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checking on read was erroneously skipped. pngcp can now turn off the
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palette index checking or fix the errors (mainly to allow comparison with
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libpng 1.6, which defaulted to ignoring it). The API now documents how
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the 'enabled' parameter works. On read the check is on by default (it
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was apparently off in libpng 1.6) however now if explicitly turned on the
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warning message is stopped; this provides better interaction with
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get_palette_max at the cost of a small API change (may need to be reviewed.)
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Palette size errors: invalid entries in the palette are now set to #beaded to
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make the errors more obvious and allow easy detection in memory.
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Read transform pipeline caching: changes to fix the palette index check
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(which are erroneously cached), the pipeline can now contain multiple
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caches, e.g., caching of packing of palette indices can be combined with
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caching of palette RGB transforms.
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Read code now checks for callbacks to read 0 data (and faults them).
|
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Fixed the reading of PNGs with multiple 0 length IDATs that failed as a
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result plus the handling of zero length unknown (which occurs, validly;
|
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the spurious warning has been removed).
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Filter selection: the 1.6 and earlier sum of absolute differences algorithm
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has been reintroduced with an option to disfavor some filters over others
|
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where the sums are close (not yet exposed). The selection code also logs
|
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the last known occurence of each possible byte code across multiple lines.
|
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This allows detection of PNG images with lower bit depth than the format
|
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implies and, therefore, allows the filtering to be turned off in those
|
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cases as well.
|
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The default write zlib settings are still lower than libpng16. The
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selection algorithm is being refined (the overall results are worse than
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not doing any filtering).
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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4
LICENSE
4
LICENSE
@@ -10,7 +10,7 @@ this sentence.
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This code is released under the libpng license.
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libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, May 7, 2016, are
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libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, May 21, 2016, are
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Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
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derived from libpng-1.0.6, and are distributed according to the same
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disclaimer and license as libpng-1.0.6 with the following individuals
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@@ -109,4 +109,4 @@ the additional disclaimers inserted at version 1.0.7.
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Glenn Randers-Pehrson
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glennrp at users.sourceforge.net
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May 7, 2016
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May 21, 2016
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2
README
2
README
@@ -1,4 +1,4 @@
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README for libpng version 1.7.0beta81 - May 7, 2016 (shared library 17.0)
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README for libpng version 1.7.0beta81 - May 21, 2016 (shared library 17.0)
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See the note about version numbers near the top of png.h
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See INSTALL for instructions on how to install libpng.
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@@ -1,6 +1,6 @@
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libpng-manual.txt - A description on how to use and modify libpng
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libpng version 1.7.0beta81 - May 7, 2016
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libpng version 1.7.0beta81 - May 21, 2016
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Updated and distributed by Glenn Randers-Pehrson
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<glennrp at users.sourceforge.net>
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Copyright (c) 1998-2015 Glenn Randers-Pehrson
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@@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
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Based on:
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libpng versions 0.97, January 1998, through 1.7.0beta81 - May 7, 2016
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libpng versions 0.97, January 1998, through 1.7.0beta81 - May 21, 2016
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Updated and distributed by Glenn Randers-Pehrson
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Copyright (c) 1998-2015 Glenn Randers-Pehrson
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19
libpng.3
19
libpng.3
@@ -1,4 +1,4 @@
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.TH LIBPNG 3 "May 7, 2016"
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.TH LIBPNG 3 "May 21, 2016"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.7.0beta81
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.SH SYNOPSIS
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@@ -500,7 +500,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
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.SH LIBPNG.TXT
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libpng-manual.txt - A description on how to use and modify libpng
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libpng version 1.7.0beta81 - May 7, 2016
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libpng version 1.7.0beta81 - May 21, 2016
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Updated and distributed by Glenn Randers-Pehrson
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<glennrp at users.sourceforge.net>
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Copyright (c) 1998-2015 Glenn Randers-Pehrson
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@@ -511,7 +511,7 @@ libpng-manual.txt - A description on how to use and modify libpng
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Based on:
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libpng versions 0.97, January 1998, through 1.7.0beta81 - May 7, 2016
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libpng versions 0.97, January 1998, through 1.7.0beta81 - May 21, 2016
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Updated and distributed by Glenn Randers-Pehrson
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Copyright (c) 1998-2015 Glenn Randers-Pehrson
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@@ -5940,12 +5940,11 @@ the first widely used release:
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...
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1.0.19 10 10019 10.so.0.19[.0]
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...
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1.2.53 13 10253 12.so.0.53[.0]
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1.2.56 13 10253 12.so.0.53[.0]
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...
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1.5.23 15 10523 15.so.15.23[.0]
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1.5.27 15 10523 15.so.15.23[.0]
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...
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1.6.19beta01-04 16 10619 16.so.16.19[.0]
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1.6.19rc01-03 16 10619 16.so.16.19[.0]
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1.6.22 16 10622 16.so.16.22[.0]
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...
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1.7.0alpha01-10 17 10700 17.so.17.0[.0]
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1.7.0beta01-81 17 10700 17.so.17.0[.0]
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@@ -6004,7 +6003,7 @@ possible without all of you.
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Thanks to Frank J. T. Wojcik for helping with the documentation.
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Libpng version 1.7.0beta81 - May 7, 2016:
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Libpng version 1.7.0beta81 - May 21, 2016:
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Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
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Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
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@@ -6029,7 +6028,7 @@ this sentence.
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This code is released under the libpng license.
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libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, May 7, 2016, are
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libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, May 21, 2016, are
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Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
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derived from libpng-1.0.6, and are distributed according to the same
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disclaimer and license as libpng-1.0.6 with the following individuals
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@@ -6128,7 +6127,7 @@ the additional disclaimers inserted at version 1.0.7.
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Glenn Randers-Pehrson
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glennrp at users.sourceforge.net
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May 7, 2016
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May 21, 2016
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.\" end of man page
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@@ -1,4 +1,4 @@
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.TH LIBPNGPF 3 "May 7, 2016"
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.TH LIBPNGPF 3 "May 21, 2016"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.7.0beta81
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(private functions)
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2
png.5
2
png.5
@@ -1,4 +1,4 @@
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.TH PNG 5 "May 7, 2016"
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.TH PNG 5 "May 21, 2016"
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.SH NAME
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png \- Portable Network Graphics (PNG) format
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.SH DESCRIPTION
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4
png.c
4
png.c
@@ -705,14 +705,14 @@ png_get_copyright(png_const_structrp png_ptr)
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#else
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# ifdef __STDC__
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return PNG_STRING_NEWLINE \
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"libpng version 1.7.0beta81 - May 7, 2016" PNG_STRING_NEWLINE \
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"libpng version 1.7.0beta81 - May 21, 2016" PNG_STRING_NEWLINE \
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"Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson" \
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PNG_STRING_NEWLINE \
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"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
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"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
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PNG_STRING_NEWLINE;
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# else
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return "libpng version 1.7.0beta81 - May 7, 2016\
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return "libpng version 1.7.0beta81 - May 21, 2016\
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Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson\
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Copyright (c) 1996-1997 Andreas Dilger\
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Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
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17
png.h
17
png.h
@@ -1,7 +1,7 @@
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.7.0beta81, May 7, 2016
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* libpng version 1.7.0beta81, May 21, 2016
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*
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* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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@@ -12,7 +12,7 @@
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* Authors and maintainers:
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* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
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* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.7.0beta81, May 7, 2016:
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* libpng versions 0.97, January 1998, through 1.7.0beta81, May 21, 2016:
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* Glenn Randers-Pehrson.
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* See also "Contributing Authors", below.
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*/
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@@ -25,7 +25,7 @@
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*
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* This code is released under the libpng license.
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*
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* libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, May 7, 2016, are
|
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* libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, May 21, 2016, are
|
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* Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
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* derived from libpng-1.0.6, and are distributed according to the same
|
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* disclaimer and license as libpng-1.0.6 with the following individuals
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@@ -182,12 +182,11 @@
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* ...
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* 1.0.19 10 10019 10.so.0.19[.0]
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* ...
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* 1.2.53 13 10253 12.so.0.53[.0]
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* 1.2.56 13 10253 12.so.0.53[.0]
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* ...
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* 1.5.23 15 10523 15.so.15.23[.0]
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* 1.5.27 15 10523 15.so.15.23[.0]
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* ...
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* 1.6.19beta01-04 16 10619 16.so.16.19[.0]
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* 1.6.19rc01-03 16 10619 16.so.16.19[.0]
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* 1.6.22 16 10622 16.so.16.22[.0]
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||||
* ...
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||||
* 1.7.0alpha01-10 17 10700 17.so.17.0[.0]
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* 1.7.0beta01-81 17 10700 17.so.17.0[.0]
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@@ -218,7 +217,7 @@
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* Y2K compliance in libpng:
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* =========================
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*
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* May 7, 2016
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* May 21, 2016
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*
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* Since the PNG Development group is an ad-hoc body, we can't make
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* an official declaration.
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@@ -288,7 +287,7 @@
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.7.0beta81"
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#define PNG_HEADER_VERSION_STRING \
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" libpng version 1.7.0beta81 - May 7, 2016\n"
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" libpng version 1.7.0beta81 - May 21, 2016\n"
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#define PNG_LIBPNG_VER_SONUM 17
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#define PNG_LIBPNG_VER_DLLNUM 17
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@@ -1,7 +1,7 @@
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/* pngconf.h - machine configurable file for libpng
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*
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* libpng version 1.7.0beta81, May 7, 2016
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* libpng version 1.7.0beta81, May 21, 2016
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*
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||||
* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
|
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
|
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|
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@@ -1,7 +1,7 @@
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|
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VisualStudio instructions
|
||||
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||||
libpng version 1.7.0beta81 - May 7, 2016
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||||
libpng version 1.7.0beta81 - May 21, 2016
|
||||
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||||
Copyright (c) 2010,2013,2015 Glenn Randers-Pehrson
|
||||
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||||
@@ -2,7 +2,7 @@
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<!--
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||||
* zlib.props - location of zlib source
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*
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||||
* libpng version 1.7.0beta81 - May 7, 2016
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||||
* libpng version 1.7.0beta81 - May 21, 2016
|
||||
*
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||||
* Copyright (c) 2011,2013,2014 Glenn Randers-Pehrson
|
||||
*
|
||||
|
||||
@@ -1,5 +1,5 @@
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||||
|
||||
Makefiles for libpng version 1.7.0beta81 - May 7, 2016
|
||||
Makefiles for libpng version 1.7.0beta81 - May 21, 2016
|
||||
|
||||
pnglibconf.h.prebuilt => Stores configuration settings
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||||
makefile.linux => Linux/ELF makefile
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||||
|
||||
@@ -2,7 +2,7 @@
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||||
/* pnglibconf.h - library build configuration */
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||||
/* libpng version 1.7.0beta81, May 7, 2016 */
|
||||
/* libpng version 1.7.0beta81, May 21, 2016 */
|
||||
|
||||
/* Copyright (c) 1998-2016 Glenn Randers-Pehrson */
|
||||
|
||||
|
||||
Reference in New Issue
Block a user