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[libpng17] Update CHANGES and ANNOUNCE, fixed several new typos
This commit is contained in:
Glenn Randers-Pehrson
parent
01ff090760
commit
8c7b59f2b9
31
ANNOUNCE
31
ANNOUNCE
@ -1,5 +1,5 @@
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Libpng 1.7.0beta81 - May 31, 2016
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Libpng 1.7.0beta81 - June 7, 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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@ -1290,7 +1290,7 @@ 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 31, 2016]
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Version 1.7.0beta81 [June 7, 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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@ -1329,6 +1329,33 @@ Version 1.7.0beta81 [May 31, 2016]
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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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Port contrib/libtests/pngvalid.c from libpng16.
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PNG compression level setting API: this allows the various compression
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settings controlling deflate, fitlering, and so on to be set via a single
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setting with six values. This is currently documented in png.h ("Write
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compression settings").
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Internally the compression settings have been tuned both for the overall
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setting and for any specific settings made by the original APIs.
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APIs to control iCCP chunk compression separately have been added.
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contrib/examples/pngcp.c has been modified to accomodate the new compression
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setting and to include options for separate control of iCCP chunk
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compression.
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The new "png_setting" ABI has been modified to accomodate a wider range of
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settings and most of the old compression control ABIs have been replaced by
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function-like macros with the same API which call png_setting. This is an
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API check in 1.7.0 for png_setting (alone). png_setting now handles all
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of png_set_option. This eliminates 19 ABIs at the cost of adding 1
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(png_setting).
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CRC and benign error checking has been updated internally to use bit-fields
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and the CRC calculation skip when the CRC is not used has been improved
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slightly to avoid the initialization of the CRC. A new png_setting based
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API allows more detailed control of benign error/warning messages (this
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may change, the internal error handling seems too complex.) The
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ERROR_NUMBERS support has been removed with the intent of implementing
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proper i18n.
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The memcpy-size-0 issue in png_push_fill_buffer has been fixed, with an
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appropriate debug() assert if a fill for 0 bytes occurs.
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Most PNG_FLAG_ values for png_struct::flags have been eliminated (as a
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result of the benign error handling changes). Only one remains.
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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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29
CHANGES
29
CHANGES
@ -5590,7 +5590,7 @@ 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 31, 2016]
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Version 1.7.0beta81 [June 7, 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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@ -5629,6 +5629,33 @@ Version 1.7.0beta81 [May 31, 2016]
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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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Port contrib/libtests/pngvalid.c from libpng16.
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PNG compression level setting API: this allows the various compression
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settings controlling deflate, fitlering, and so on to be set via a single
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setting with six values. This is currently documented in png.h ("Write
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compression settings").
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Internally the compression settings have been tuned both for the overall
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setting and for any specific settings made by the original APIs.
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APIs to control iCCP chunk compression separately have been added.
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contrib/examples/pngcp.c has been modified to accomodate the new compression
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setting and to include options for separate control of iCCP chunk
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compression.
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The new "png_setting" ABI has been modified to accomodate a wider range of
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settings and most of the old compression control ABIs have been replaced by
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function-like macros with the same API which call png_setting. This is an
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API check in 1.7.0 for png_setting (alone). png_setting now handles all
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of png_set_option. This eliminates 19 ABIs at the cost of adding 1
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(png_setting).
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CRC and benign error checking has been updated internally to use bit-fields
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and the CRC calculation skip when the CRC is not used has been improved
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slightly to avoid the initialization of the CRC. A new png_setting based
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API allows more detailed control of benign error/warning messages (this
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may change, the internal error handling seems too complex.) The
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ERROR_NUMBERS support has been removed with the intent of implementing
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proper i18n.
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The memcpy-size-0 issue in png_push_fill_buffer has been fixed, with an
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appropriate debug() assert if a fill for 0 bytes occurs.
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Most PNG_FLAG_ values for png_struct::flags have been eliminated (as a
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result of the benign error handling changes). Only one remains.
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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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14
png.h
14
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 21, 2016
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* libpng version 1.7.0beta81, June 7, 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 21, 2016:
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* libpng versions 0.97, January 1998, through 1.7.0beta81, June 7, 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 21, 2016, are
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* libpng versions 1.0.7, July 1, 2000, through 1.7.0beta81, June 7, 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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@ -217,7 +217,7 @@
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* Y2K compliance in libpng:
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* =========================
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*
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* May 21, 2016
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* June 7, 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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@ -287,7 +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 21, 2016\n"
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" libpng version 1.7.0beta81 - June 7, 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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@ -1768,7 +1768,7 @@ PNG_REMOVED(66, void, png_set_crc_action, (png_structrp png_ptr,
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* less of an issue than the overheads on reading a PNG file.
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*
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* Use this option when producing PNG files that are not expected to be
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* distributed widely or where read speed is more important that size.
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* distributed widely or where read speed is more important than size.
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* This is also a good default for small images where the slight increase
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* in size of the compressed data doesn't change the file size much.
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*/
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@ -1880,7 +1880,7 @@ PNG_REMOVED(66, void, png_set_crc_action, (png_structrp png_ptr,
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* next row written.
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*
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* The 'method' must match that passed to png_set_IHDR; it cannot be changed and
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* is ignore in 1.7 and later.
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* is ignored in 1.7 and later.
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*
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* If multiple filters are enabled libpng will select one according to the
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* following rules:
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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 21, 2016
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* libpng version 1.7.0beta81, June 7, 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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@ -1288,7 +1288,7 @@ pz_default_settings(png_uint_32 settings, const png_uint_32 owner,
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case PNG_COMPRESSION_LOW:
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case PNG_COMPRESSION_MEDIUM:
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/* Z_FILTERED is almost as good as the default and can be
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* significantly faster, it biases the algorithm towards smaller
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* significantly faster. It biases the algorithm towards smaller
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* byte values.
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*
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* Using Z_DEFAULT_STRATEGY here, rather than Z_FILTERED, benefits
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@ -3632,7 +3632,7 @@ set_filter(png_zlib_statep ps, unsigned int filtersIn)
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/* Notice that PNG_NO_FILTERS is 0 and passes this test; this is OK because
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* filters then gets set to PNG_FILTER_NONE, as is required.
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*
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* The argument to this routine is actually an (int), but convertion to
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* The argument to this routine is actually an (int), but conversion to
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* (unsigned int) is safe because it leaves the top bits set which results in
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* PNG_EDOM below.
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*/
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