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364 Commits

Author SHA1 Message Date
John Bowler
c9f2269857 [libpng15] Enabled renaming of the extern (but not DLL exported) ARM filter 
functions.  Also enabled inclusion of pngpriv.h in non-C files by preventing
C/C++ specific definitions if PNG_VERSION_INFO_ONLY is defined.
 2013-02-04 17:49:11 -06:00
John Bowler
84dc479108 [libpng15] De-configured build fixes to make a range of deconfiguration options 
(such as switching off read or write support) work in more cases.  Also
upgraded pngtest and pngvalid to the libpng 1.6 versions (with some
modifications) which provide more extensive testing.  Replaced pngtest.png
because pngtest writes the ancillary chunks in a different order.
 2013-01-06 12:38:39 -06:00
John Bowler
62cfc893e0 [libpng15] Rearranged building of ARM NEON optimizations. The ARM specific code 
is split out entirely to the arm subdirectory and changes to configure.ac and
Makefile.am to add new stuff are reduced.  Now material code changes,
although for build test purposes, --enable-arm-neon now builds on non-ARM
systems.
Rebuilt Makefile.in, configure, etc., with autoconf-2.69 and automake-1.2.5.
 2012-12-14 22:05:08 -06:00
Glenn Randers-Pehrson
33b90debc5 [libpng15] Minor edit of documentation 2012-10-10 14:58:41 -05:00
Glenn Randers-Pehrson
95ea04f925 [libpng15] Folded some long lines; updated manual about removed macros 2012-08-16 00:56:45 -05:00
Glenn Randers-Pehrson
e088ce7363 [libpng15] Imported from libpng-1.5.11.tar 2012-06-14 06:33:45 -05:00
Glenn Randers-Pehrson
8a3b400826 [libpng15] Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED in pngpriv.h around 
declaration of png_handle_unknown().
 2012-04-23 23:04:32 -05:00
Glenn Randers-Pehrson
b57e9b747f [libpng15] Bump version to 1.5.11beta01 2012-04-12 10:33:00 -05:00
Glenn Randers-Pehrson
38a706f83f [libpng15] Imported from libpng-1.5.10.tar 2012-03-29 06:33:41 -05:00
Glenn Randers-Pehrson
0ff5150f91 [libpng15] Reject all iCCP chunks after the first, 
even if the first one is invalid.
 2012-03-09 22:38:06 -06:00
Glenn Randers-Pehrson
454e05a63a [libpng15] Added palette-index checking. 2012-03-04 22:30:06 -06:00
Glenn Randers-Pehrson
65de519c4a [libpng15] Revised the SAFE_LIMITS feature to be the same as the feature in 
libpng16.  Added information about the new limits in the manual.
 2012-02-24 16:54:12 -06:00
Glenn Randers-Pehrson
cd3f5bb507 [libpng15] Imported from libpng-1.5.7.tar 2011-12-15 09:50:23 -06:00
John Bowler
4491fa237f [libpng15] Remove simplified interface 2011-11-23 15:41:29 -06:00
John Bowler
17878c6e65 [libpng15] Work around compilers that don't support declaration of const data. 
Some compilers fault 'extern const' data declarations (because the data is
not initialized); this turns on const-ness only for compilers where
this is known to work.
 2011-11-16 22:37:46 -06:00
John Bowler
4fa96a42f7 [libpng15] Fixes for C++ compilation using g++ When libpng source is compiled 
using g++. The compiler imposes C++ rules on the C source; thus it
    is desireable to make the source work with either C or C++ rules
    without throwing away useful error information.  This change adds
    png_voidcast to allow C semantic (void*) cases or the corresponding
    C++ static_cast operation, as appropriate.
 2011-11-16 16:39:16 -06:00
Glenn Randers-Pehrson
45bb9a62ba [libpng15] Changed "PNG_EXTERN" to "extern" in sRGB table declarations 
in pngpriv.h
 2011-11-16 12:47:33 -06:00
Glenn Randers-Pehrson
8596468e51 [libpng15] Removed PNG_CONST from the sRGB table declarations 
in pngpriv.h and png.c
 2011-11-16 08:52:36 -06:00
Glenn Randers-Pehrson
65f3ac192b [libpng15] Fixed a typo in pngpriv.h 2011-11-10 06:36:34 -06:00
Glenn Randers-Pehrson
efc4b69767 [libpng15] Fixed some typos in comments. 2011-11-07 23:31:34 -06:00
John Bowler
7875d534cb [libpng15] Simplified read/write API initial version; basic read/write tested 
on a variety of images, limited documentation (in the header file.)
 2011-11-07 22:33:49 -06:00
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
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
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
4e68aa7e40 [libpng15] Further optimization of png_combine_row() in the interlaced case. 2011-10-11 16:01:33 -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
997b193f63 [libpng15] Imported from libpng-1.5.6beta03.tar 2011-09-28 07:24:28 -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
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
d3261115a8 [libpng15] Imported from libpng-1.5.5rc01.tar 2011-09-15 08:27:01 -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
John Bowler
736f40f459 [devel] Fixes to rgb_to_gray and cHRM XYZ APIs 2011-08-25 16:19:44 -05:00
Glenn Randers-Pehrson
75d5bfda5b [devel] Imported from libpng-1.5.5beta05.tar 2011-08-17 07:47:04 -05:00
John Bowler
9b979b177b [devel] Added new types and internal functions for CIE RGB end point handling 
to pngpriv.h (functions yet to be implemented).
 2011-08-16 22:58:33 -05:00
John Bowler
7b9796539d [devel] Prevent unexpected API exports from non-libpng DLLs on Windows. 
The "_DLL" is removed from the test of whether a DLL is being built.
 2011-08-16 22:57:27 -05:00
Glenn Randers-Pehrson
d404b6d488 [devel] Imported from libpng-1.5.4.tar 2011-07-07 06:26:30 -05:00
John Bowler
8d261262d9 [devel] Fixed pngvalid, simplified macros, added checking for 0 in sCAL. 2011-06-18 13:37:11 -05:00
Glenn Randers-Pehrson
ab63dd0892 [devel] Renamed png_set_chop_16() to png_set_strip_16(). 2011-06-17 20:41:19 -05:00
Glenn Randers-Pehrson
5f0b9276ec [devel] Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. 
If this is not enabled, png_set_strip_16() and png_do_scale_16_to_8()
aren't built.
 2011-06-16 09:05:40 -05:00
Glenn Randers-Pehrson
ef217b76a3 [devel] Updated comments that mention 1.5.3; changed them to 1.5.4. 2011-06-15 12:58:27 -05:00
Glenn Randers-Pehrson
be720edba7 [devel] Correction to the expand_16 code; removed extra instance of 
png_set_scale_16_to_8 from pngpriv.h
 2011-06-15 08:20:37 -05:00
Glenn Randers-Pehrson
2232baa41b [devel] Made png_set_chop_16() API removeable 
by disabling PNG_CHOP_16_TO_8_SUPPORTED
 2011-06-14 06:59:46 -05:00
John Bowler
550bab03fb [devel] Removed the ACCURATE and LEGACY options (they are no longer useable) 
Fixed some compiliation problems with scaling options.
 2011-06-14 06:17:26 -05:00
John Bowler
6a1dc2329a [devel] Removed string/memory macros that are no longer used 
and are not necessarily fully supportable, particularly png_strncpy and
png_snprintf.
 2011-06-11 06:58:46 -05:00
Glenn Randers-Pehrson
2d3fc1ca3b [devel] Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and 
PNG_AFTER_IDAT from pngpriv.h to png.h because they must be visible to
applications that call png_set_unknown_chunks().
 2011-05-10 23:48:00 -05:00
John Bowler
f70c7d02e9 [devel] Added named value and 'flag' gamma support to png_set_gamma. Made a 
minor change from the previous (unreleased) ABI/API to hide the exact value
used for Macs - it's not a good idea to embed this in the ABI!
 2011-05-10 22:54:37 -05:00