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Author SHA1 Message Date
John Bowler
ecb3ad035a [libpng15] Updated ANNOUNCE and CHANGES 2011-10-16 22:55:44 -05:00
John Bowler
fb5b3ac013 [libpng15] Prevent libpng overwriting unused bits at the end of the image when 
is not byte aligned, while reading. Prior to libpng-1.5.6 libpng would
overwrite the end of the image if the row width is not an exact multiple
of 8 bits and the image is not interlaced.
 2011-10-16 22:52:56 -05:00
John Bowler
5b84901c55 [libpng15] Turned on multiple png_read_update_info in pngvalid transform tests. 2011-10-16 22:42:46 -05:00
John Bowler
57cbcf6b8f [libpng15] Add ability to call png_read_update_info multiple times to pngvalid.c 2011-10-14 19:43:53 -05:00
John Bowler
07772cba07 [libpng15] Fixes for multiple calls to png_read_update_info. 
These fixes attend to most of the errors revealed in pngvalid, however doing
the gamma work twice results in inaccuracies that can't be easily fixed.
There is now a warning in the code if this is going to happen.
 2011-10-14 18:19:47 -05:00
John Bowler
5c1905caae [libpng15] Fixed a relatively harmless memory overwrite 
in compressed text writing
 2011-10-14 12:33:52 -05:00
Glenn Randers-Pehrson
d58251b47e [libpng15] Reverted previous change; removed png_get_compression_buffer() API. 
It is too risky. Exactly how png_ptr->zbuf is used is under control of the
individual chunk implementation and there could easily be significant changes
within a major release.
 2011-10-13 20:30:02 -05:00
Glenn Randers-Pehrson
d3dcb463d6 [libpng15] Added png_get_compression_buffer() API. 2011-10-13 17:51:31 -05:00
Glenn Randers-Pehrson
3dbfd300ff [libpng15] Removed two redundant tests for unitialized row. 2011-10-13 17:24:36 -05:00
Glenn Randers-Pehrson
ff36991ca2 [libpng15] Bump version to libpng-1.5.6beta06 2011-10-12 06:54:55 -05:00
Glenn Randers-Pehrson
5b3b54e3f6 [libpng15] Imported from libpng-1.5.6beta05.tar 2011-10-12 06:47:31 -05:00
Glenn Randers-Pehrson
ba55c0770b [libpng15] Use PNG_CSTRING_FROM_CHUNK macro with png_debug2() in pngwutil.c 2011-10-11 21:21:37 -05:00
John Bowler
4e68aa7e40 [libpng15] Further optimization of png_combine_row() in the interlaced case. 2011-10-11 16:01:33 -05:00
Glenn Randers-Pehrson
76b62317b5 [libpng15] Fixed bug in png_write_chunk_header() debug print, 
introduced in 1.5.6bet01.
 2011-10-11 13:54:27 -05:00
Glenn Randers-Pehrson
4dd0dc6399 [libpng15] Fix small typo in CHANGES and ANNOUNCE 2011-10-07 18:48:10 -05:00
John Bowler
8be28e3eb6 [libpng15] Optimized png_combine_row() when rows are aligned This gains a 
small percentage for 16-bit and 32-bit pixels in the typical case where the
output row buffers are appropriately aligned. The optimization was not
previously possible because the png_struct buffer was always misaligned.
 2011-10-07 18:36:37 -05:00
John Bowler
ac8375d000 [libpng15] Align png_struct::row_buf - previously it was always unaligned, 
caused by a bug in the code that attempted to align it; the code needs to
subtract one from the pointer to take account of the filter byte prepended to
each row.
 2011-10-06 22:27:16 -05:00
Glenn Randers-Pehrson
65c0339b5c [libpng15] Speed up png_combine_row() for interlaced images. This reduces the 
generality of the code, allowing it to be optimized for Adam7 interlace.  The
masks passed to png_combine_row() are now generated internally, avoiding
some code duplication and localizing the interlace handling somewhat.
 2011-10-06 21:54:17 -05:00
Glenn Randers-Pehrson
4daae30174 [libpng15] #ifdef out png_progressive_combine_row() when interlacing is 
not supported.
 2011-10-06 21:37:47 -05:00
Glenn Randers-Pehrson
d5bc89ef11 [libpng15] Updated CHANGES and ANNOUNCE 2011-10-05 21:11:46 -05:00
Glenn Randers-Pehrson
fa7d7934f6 [libpng15] Replaced a short but frequently-used memcpy() in png_combine_row() 
with a loop.
 2011-10-05 21:09:22 -05:00
Glenn Randers-Pehrson
a92a212925 [libpng15] Bump version to libpng-1.5.6beta05 2011-10-05 16:49:14 -05:00
Glenn Randers-Pehrson
435cf87469 [libpng15] Bump version to libpng-1.5.6beta04 2011-10-05 16:42:16 -05:00
Glenn Randers-Pehrson
e51916c0f9 [libpng15] Bump version to libpng-1.5.6beta04 2011-09-28 07:34:53 -05:00
Glenn Randers-Pehrson
997b193f63 [libpng15] Imported from libpng-1.5.6beta03.tar 2011-09-28 07:24:28 -05:00
Glenn Randers-Pehrson
e29c4b9b93 [libpng15] Revised CMakeLists.txt to work with mingw and removed some material 
from CMakeLists.txt that is no longer useful in libpng-1.5.
 2011-09-27 19:01:58 -05:00
Glenn Randers-Pehrson
8e25a61277 [libpng15]` Revised test-pngtest.sh to report FAIL when pngtest fails. 
Added "--strict" option to pngtest, to report FAIL when the failure is
only because the resulting valid files are different.
 2011-09-26 20:57:33 -05:00
Glenn Randers-Pehrson
f573ff7792 [libpng15] Bump version to libpng-1.5.6beta03 2011-09-26 16:53:11 -05:00
Glenn Randers-Pehrson
1a16735ce7 [libpng15] Imported from libpng-1.5.6beta02.tar 2011-09-26 16:44:31 -05:00
Glenn Randers-Pehrson
d02d6a1c7d [libpng15] Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) 
macro.
 2011-09-26 16:43:08 -05:00
Glenn Randers-Pehrson
968c231cc8 [libpng15] Added a note in the manual the png_read_update_info() must be 
called only once with a particular info_ptr.
 2011-09-26 16:35:22 -05:00
Glenn Randers-Pehrson
bb5cb1476b [libpng15] Bump version to libpng-1.5.6beta02 2011-09-22 12:48:19 -05:00
Glenn Randers-Pehrson
115020d985 [libpng15] Imported from libpng-1.5.6beta01.tar 2011-09-22 09:51:23 -05:00
Glenn Randers-Pehrson
3e2263abf2 [libpng15] Imported from libpng-1.5.5.tar 2011-09-22 08:45:04 -05:00
Glenn Randers-Pehrson
d71f09df4d [libpng15] Bump version to libpng-1.5.5rc02 2011-09-15 08:39:02 -05:00
Glenn Randers-Pehrson
0a456b5d16 [libpng15] Fix grammar in ANNOUNCE and CHANGES 2011-09-15 08:32:07 -05:00
Glenn Randers-Pehrson
d3261115a8 [libpng15] Imported from libpng-1.5.5rc01.tar 2011-09-15 08:27:01 -05:00
Glenn Randers-Pehrson
673a1166fe [libpng15] Updated ANNOUNCE and CHANGES with new CVE number. 2011-09-12 08:40:07 -05:00
Glenn Randers-Pehrson
853afe631c [libpng15] Bump version to libpng-1.5.5beta09 2011-09-09 22:33:48 -05:00
Glenn Randers-Pehrson
fe85bafedf [libpng15] Bump version to libpng-1.5.5beta08 2011-09-09 21:54:58 -05:00
John Bowler
751561218f [libpng15] Constant changes for 64-bit compatibility (removal of L suffixes). 
The 16-bit cases still use "L" as we don't have a 16-bit test system.
 2011-09-09 17:21:44 -05:00
Glenn Randers-Pehrson
f0c19e6455 [libpng15] Fix typo in ANNOUNCE and CHANGES 2011-09-09 08:16:53 -05:00
Glenn Randers-Pehrson
ccff383d44 [libpng15] Relocated new HAVE_SOLARIS_LD definition in configure.ac 2011-09-09 07:55:25 -05:00
John Bowler
f3f7e14727 [libpng15] Fixed 64-bit compilation errors (gcc). The errors fixed relate 
to conditions where types that are 32 bits in the GCC 32-bit
world (uLong and png_size_t) become 64 bits in the 64-bit
world.  This produces potential truncation errors which the
compiler correctly flags.
 2011-09-09 07:32:37 -05:00
Glenn Randers-Pehrson
3c2ae60f46 [libpng15] Bump version to libpng-1.5.5beta08 2011-09-09 06:10:21 -05:00
Glenn Randers-Pehrson
95ba417c82 [libpng15] Imported from libpng-1.5.5beta07.tar 2011-09-08 12:28:05 -05:00
Glenn Randers-Pehrson
b6e4d58e4b [libpng15] Changed png_chunk_benign_error() to png_warning() in png.c, in 
png_XYZ_from_xy_checked
 2011-09-08 12:25:52 -05:00
Glenn Randers-Pehrson
ef43c17bfe [devel] Changed "// ..." comments to "/* .. */" in the visupng project. 2011-09-03 09:53:07 -05:00
Glenn Randers-Pehrson
ad8b7b71b4 [devel] Add SunOS support to configure and Makefile.am 2011-09-01 19:38:08 -05:00
Glenn Randers-Pehrson
83bd94f1f4 [devel] Added SunOS support to configure.ac and Makefile.am 2011-09-01 14:06:49 -05:00