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[libpng17] Update CHANGES and ANNOUNCE, fix two trivial typos in comments

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Glenn Randers-Pehrson 2015-12-29 19:50:41 -06:00
parent 4253c4d759
commit fafbc6a458
7 changed files with 45 additions and 13 deletions
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20
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.7.0beta76 - December 29, 2015 Libpng 1.7.0beta76 - December 30, 2015
This is not intended to be a public release. It will be replaced 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. within a few weeks by a public version or by another test version.
@ -1139,7 +1139,7 @@ Version 1.7.0beta75 [December 21, 2015]
struct; put the check that relies on pz->list being non-NULL struct; put the check that relies on pz->list being non-NULL
second (David Drysdale). second (David Drysdale).
Version 1.7.0beta76 [December 29, 2015] Version 1.7.0beta76 [December 30, 2015]
Corrected the options handling. Setting the new, higher, option Corrected the options handling. Setting the new, higher, option
bits triggered the byte check (which is no longer necessary). bits triggered the byte check (which is no longer necessary).
Added NULL pz->list test to png_zlib_compress_validate(). This seems Added NULL pz->list test to png_zlib_compress_validate(). This seems
@ -1149,6 +1149,22 @@ Version 1.7.0beta76 [December 29, 2015]
Added code to pngcp.c to iterate through the command line options when Added code to pngcp.c to iterate through the command line options when
non-list options have the 'all' parameter. This is used to rapidly non-list options have the 'all' parameter. This is used to rapidly
test the effect of different zlib options. test the effect of different zlib options.
Revised the handling of tIME and text chunks on read to record the
location of the chunks relative to PLTE and IDAT. Behavior on write
is unchanged except that if the position was recorded on read it will
be re-used. This involves an ABI change to the png_text_struct; a
one byte location field is added (with the same meaning as the one
used to record unknown chunk location.) Because this field is only
used on read there is no API change unless a png_info from a libpng
read is passed to a subsequent libpng write (this did not work very
well before 1.7; the tIME chunk could get duplicated.) The new field
is ignored by png_set_text(), resetting it to the current position
in the read or write stream. On write the position is set to the
next location to be written unless the write has not started (the
position is before the signature) in which case the location is set
to PNG_HAVE_PLTE|PNG_AFTER_IDAT. When the chunk is written the
position is set to the actual write location (effectively the position
is frozen.)
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

18
CHANGES
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@ -5438,7 +5438,7 @@ Version 1.7.0beta75 [December 21, 2015]
struct; put the check that relies on pz->list being non-NULL struct; put the check that relies on pz->list being non-NULL
second (David Drysdale). second (David Drysdale).
Version 1.7.0beta76 [December 29, 2015] Version 1.7.0beta76 [December 30, 2015]
Corrected the options handling. Setting the new, higher, option Corrected the options handling. Setting the new, higher, option
bits triggered the byte check (which is no longer necessary). bits triggered the byte check (which is no longer necessary).
Added NULL pz->list test to png_zlib_compress_validate(). This seems Added NULL pz->list test to png_zlib_compress_validate(). This seems
@ -5448,6 +5448,22 @@ Version 1.7.0beta76 [December 29, 2015]
Added code to pngcp.c to iterate through the command line options when Added code to pngcp.c to iterate through the command line options when
non-list options have the 'all' parameter. This is used to rapidly non-list options have the 'all' parameter. This is used to rapidly
test the effect of different zlib options. test the effect of different zlib options.
Revised the handling of tIME and text chunks on read to record the
location of the chunks relative to PLTE and IDAT. Behavior on write
is unchanged except that if the position was recorded on read it will
be re-used. This involves an ABI change to the png_text_struct; a
one byte location field is added (with the same meaning as the one
used to record unknown chunk location.) Because this field is only
used on read there is no API change unless a png_info from a libpng
read is passed to a subsequent libpng write (this did not work very
well before 1.7; the tIME chunk could get duplicated.) The new field
is ignored by png_set_text(), resetting it to the current position
in the read or write stream. On write the position is set to the
next location to be written unless the write has not started (the
position is before the signature) in which case the location is set
to PNG_HAVE_PLTE|PNG_AFTER_IDAT. When the chunk is written the
position is set to the actual write location (effectively the position
is frozen.)
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

4
png.c
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@ -705,14 +705,14 @@ png_get_copyright(png_const_structrp png_ptr)
#else #else
# ifdef __STDC__ # ifdef __STDC__
return PNG_STRING_NEWLINE \ return PNG_STRING_NEWLINE \
"libpng version 1.7.0beta76 - December 25, 2015" PNG_STRING_NEWLINE \ "libpng version 1.7.0beta76 - December 30, 2015" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson" \ "Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \ PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE; PNG_STRING_NEWLINE;
# else # else
return "libpng version 1.7.0beta76 - December 25, 2015\ return "libpng version 1.7.0beta76 - December 30, 2015\
Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson\ Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";

10
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.7.0beta76, December 25, 2015 * libpng version 1.7.0beta76, December 30, 2015
* *
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -12,7 +12,7 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.7.0beta76, December 25, 2015: * libpng versions 0.97, January 1998, through 1.7.0beta76, December 30, 2015:
* Glenn Randers-Pehrson. * Glenn Randers-Pehrson.
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
*/ */
@ -25,7 +25,7 @@
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* *
* libpng versions 1.0.7, July 1, 2000, through 1.7.0beta76, December 25, 2015, are * libpng versions 1.0.7, July 1, 2000, through 1.7.0beta76, December 30, 2015, are
* Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are * Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are
* derived from libpng-1.0.6, and are distributed according to the same * derived from libpng-1.0.6, and are distributed according to the same
* disclaimer and license as libpng-1.0.6 with the following individuals * disclaimer and license as libpng-1.0.6 with the following individuals
@ -218,7 +218,7 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* December 25, 2015 * December 30, 2015
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
@ -288,7 +288,7 @@
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.7.0beta76" #define PNG_LIBPNG_VER_STRING "1.7.0beta76"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.7.0beta76 - December 25, 2015\n" " libpng version 1.7.0beta76 - December 30, 2015\n"
#define PNG_LIBPNG_VER_SONUM 17 #define PNG_LIBPNG_VER_SONUM 17
#define PNG_LIBPNG_VER_DLLNUM 17 #define PNG_LIBPNG_VER_DLLNUM 17

2
pngconf.h
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@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng version 1.7.0beta76, December 25, 2015 * libpng version 1.7.0beta76, December 30, 2015
* *
* Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngset.c
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@ -679,7 +679,7 @@ get_location(png_const_structrp png_ptr)
/* Return the correct location flag for a chunk. For a png_set_<chunk> /* Return the correct location flag for a chunk. For a png_set_<chunk>
* called during read this is the current read location, for a * called during read this is the current read location, for a
* png_set_<chunk> called during write it is the following write location * png_set_<chunk> called during write it is the following write location
* (because the currents at the current location have already been written.) * (because the chunks at the current location have already been written.)
* For a png_set_<chunk> called before read starts (none of the 'position' * For a png_set_<chunk> called before read starts (none of the 'position'
* mode bits are set) the position is set to the start (PNG_HAVE_IHDR). For * mode bits are set) the position is set to the start (PNG_HAVE_IHDR). For
* a png_set_chunk> called before write starts PNG_HAVE_PLTE|PNG_AFTER_IDAT * a png_set_chunk> called before write starts PNG_HAVE_PLTE|PNG_AFTER_IDAT

2
pngwrite.c
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@ -134,7 +134,7 @@ png_write_text(png_structrp png_ptr, png_const_inforp info_ptr, png_byte where)
} }
/* The chunk was written, record where. This allows the location to have /* The chunk was written, record where. This allows the location to have
* multiple bits set, the first successful write freezes the location. * multiple bits set; the first successful write freezes the location.
*/ */
info_ptr->text[i].location = where; info_ptr->text[i].location = where;
} }