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Author SHA1 Message Date
John Bowler
1d8b75550f [libpng15] Fix for the preprocessor of the Intel C compiler. The preprocessor 
adjacent @ signs with a space; this changes the concatentation
from @@@ to PNG_JOIN; that should work with all compiler
preprocessors.
 2011-11-03 18:19:53 -05:00
John Bowler
aff44028ba [libpng15] Fixed bug in pngvalid on early allocation failure; fixed type cast 
in pngmem.c; pngvalid would attempt to call png_error() if the allocation
of a png_struct or png_info failed. This would probably have led to a
crash.  The pngmem.c implementation of png_malloc() included a cast
to png_size_t which would fail on large allocations on 16-bit systems.
 2011-11-03 16:11:08 -05:00
Glenn Randers-Pehrson
6d7705eedf [libpng15] Bump version to libpng-1.5.7beta01 2011-11-03 00:49:07 -05:00
Mans Rullgard
d3a94802d8 [libpng15] Added support for ARM processor (Mans Rullgard) 2011-11-03 00:47:55 -05:00
Glenn Randers-Pehrson
2b7d730e27 [libpng15] Bump version to libpng-1.5.7beta01 2011-11-02 23:14:13 -05:00
Glenn Randers-Pehrson
bc6726bc04 [libpng15] Imported from libpng-1.5.6.tar 2011-11-02 22:48:36 -05:00
Glenn Randers-Pehrson
1876366b17 [libpng15] Fixed a spelling error. 2011-10-27 22:09:22 -05:00
Glenn Randers-Pehrson
c94b996af8 [libpng15] Bump version to libpng-1.5.6rc04 2011-10-27 21:09:08 -05:00
Glenn Randers-Pehrson
0e9f8ced1e [libpng15] Imported from libpng-1.5.6rc03.tar 2011-10-27 21:03:00 -05:00
Glenn Randers-Pehrson
7342fcaf92 [libpng] #define PNG_ALIGN_TYPE PNG_ALIGN_NONE in contrib/pngminim/*/pngusr.h 2011-10-27 19:56:36 -05:00
John Bowler
92ef313c77 [libpng15] Fixed compiler warnings with Intel and MSYS compilers. 
The logical shift fix for Microsoft Visual C is required by other compilers,
so this enables that fix for all compilers when using compile-time constants.
Under MSYS 'byte' is a name declared in a system header file, so we
changed the name of a local variable to avoid the warnings that result.
 2011-10-27 19:53:14 -05:00
Glenn Randers-Pehrson
cb75699dff [libpng15] Renamed the LSR() macro to PNG_LSR() and added PNG_LSL() macro. 2011-10-27 16:59:03 -05:00
Glenn Randers-Pehrson
122a525c83 [libpng15] Bump version to libpng-1.5.6rc03 2011-10-27 16:51:52 -05:00
Glenn Randers-Pehrson
5e823c1fd5 [libpng15] Imported from libpng-1.5.6rc02.tar 2011-10-27 16:19:17 -05:00
Glenn Randers-Pehrson
8db19980fa [libpng15] Add leading zero to some 1-digit hex constants (0xf -> 0x0f). 2011-10-27 16:17:24 -05:00
Glenn Randers-Pehrson
ef02d563a3 [libpng15] Added LSR() macro to defend against buggy compilers that evaluate 
non-taken code branches and complain about out-of-range shifts.
 2011-10-27 12:05:58 -05:00
Glenn Randers-Pehrson
b2068640d1 [libpng15] Bump version to libpng-1.5.6rc02 2011-10-26 08:48:35 -05:00
Glenn Randers-Pehrson
93254f66fc [libpng15] Imported from libpng-1.5.6rc01.tar 2011-10-26 08:48:23 -05:00
Glenn Randers-Pehrson
52093f1776 [libpng15] Corrected recent ANNOUNCE and CHANGES entry 2011-10-21 12:57:01 -05:00
Glenn Randers-Pehrson
0654d63196 [libpng15] Bump version to libpng-1.5.6beta08 2011-10-21 07:39:45 -05:00
Glenn Randers-Pehrson
4e8aa822dc [libpng15] Imported from libpng-1.5.6beta07.tar 2011-10-21 07:39:34 -05:00
Mans Rullgard
1c42276a39 [libpng15] New png_struct member png_ptr->old_prev_row 2011-10-17 16:52:19 -05:00
Mans Rullgard
c9e27d026d [libpng15] Made png_ptr->prev_row an aligned pointer into png_ptr->big_prev_row 
and removed a redundant assignment (Mans Rullgard).
 2011-10-17 15:25:03 -05:00
Glenn Randers-Pehrson
e7db181e5d [libpng15] Bump version to libpng-1.5.6beta07 2011-10-17 08:08:16 -05:00
Glenn Randers-Pehrson
f5c5e53bf5 [libpng15] Imported from libpng-1.5.6beta06.tar 2011-10-17 08:08:08 -05:00
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