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d3feb52955
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404 Commits

Author SHA1 Message Date
Glenn Randers-Pehrson
d3feb52955 [libpng15] Ignore unused chunks in the new simplified read API. 2011-11-11 17:20:34 -06:00
Glenn Randers-Pehrson
84b0da9c94 [libpng15] Updated commentary about new API 2011-11-10 06:32:19 -06:00
John Bowler
e6fb691c49 [libpng15] Fixes to alpha swap on read, simplified write and filler add code 2011-11-08 21:35:16 -06:00
John Bowler
3615d03e05 [libpng15] Fix PNG_SIMPLIFIED transformations, 
adding alpha and reducing to 8-bit
 2011-11-08 10:38:09 -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
Glenn Randers-Pehrson
55e85c24b4 [libpng15] Imported from libpng-1.5.7beta01.tar 2011-11-04 13:47:49 -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
Mans Rullgard
1c42276a39 [libpng15] New png_struct member png_ptr->old_prev_row 2011-10-17 16:52:19 -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
Glenn Randers-Pehrson
3dbfd300ff [libpng15] Removed two redundant tests for unitialized row. 2011-10-13 17:24:36 -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
bb5cb1476b [libpng15] Bump version to libpng-1.5.6beta02 2011-09-22 12:48:19 -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
aee83b43d6 [devel] Fixed buffer bug (both the strip_16 and scale_16 transforms were 
being applied.
 2011-06-18 00:19:54 -05:00
Glenn Randers-Pehrson
6da2f2d92a [devel] Fix more inconsistencies from the swap of 16_TO_8 APIs. 
pngvalid still fails.
 2011-06-17 23:07:16 -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
a7428d443c [devel] Renamed png_set_strip_16() to png_set_scale_16(). 2011-06-17 19:07:04 -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
b0791f75ad [devel] Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms. 2011-06-15 12:07:20 -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
Glenn Randers-Pehrson
55fbff358a [devel] Consistently use "n-bit", not "n bit" in comments. 2011-05-17 06:49:32 -05:00
John Bowler
96cec0e1a3 [devel] Added expand_16 suppport to the high level interface. 2011-05-08 22:48:12 -05:00
Glenn Randers-Pehrson
4753906826 [devel] Update "last changed" dates and added CHANGES entry. 2011-05-05 07:32:30 -05:00
John Bowler
88b77cc6f3 [devel] Remove png_snprintf, add formatted warning messages. 
This change adds internal APIs to allow png_warning messages to have parameters
 without requiring the host OS to implelment snprintf.  As a side effect the
 dependency of the RFC1132 code on stdio is removed and PNG_NO_WARNINGS does
 actually work now.
 2011-05-05 06:49:55 -05:00
John Bowler
e6dc85bb0b [devel] Changed png_struct jmp_buf member name to avoid clash with macro 2011-04-27 14:47:15 -05:00
John Bowler
4a12f4a22a [devel] Cleanup of conditional compilation code and of background/gamma 
handling. Internal changes only except for a new option to avoid compiling
in the png_build_grayscale_palette API (which is not used at all internally.)
The main change is to move the transform tests (READ_TRANSFORMS,
WRITE_TRANSFORMS) up one level to the caller of the APIs.
 2011-04-17 18:34:22 -05:00
Glenn Randers-Pehrson
dcc3505c7b [devel] Imported from libpng-1.5.2.tar 2011-03-31 11:29:05 -05:00
Glenn Randers-Pehrson
f3dd1cc51e [devel] Imported from libpng-1.5.2rc01.tar 2011-03-18 22:03:48 -05:00
Glenn Randers-Pehrson
cad6798a8c [devel] Imported from libpng-1.5.2beta01.tar 2011-02-13 06:13:39 -06:00
John Bowler
9b872f4cf9 [devel] Clean up ALPHA flags and transformations 2011-02-12 09:00:16 -06:00
John Bowler
6a6d79fc00 [devel] turn on interlace handling in png_read_png 2011-02-12 08:56:40 -06:00
Glenn Randers-Pehrson
47a007a945 --amend [devel] Imported from libpng-1.5.2beta01.tar 2011-02-03 21:31:34 -06:00
Glenn Randers-Pehrson
b764c60a12 [devel] Imported from libpng-1.5.1beta03.tar 2011-01-14 21:20:20 -06:00
Glenn Randers-Pehrson
e15a96b333 [devel] Fixed a bug in handling of interlaced images (bero at arklinux.org). 2011-01-14 15:47:37 -06:00
Glenn Randers-Pehrson
f5ea1b7095 [devel] Imported from libpng-1.5.0.tar 2011-01-06 06:45:07 -06:00
Glenn Randers-Pehrson
64b863cd2a [devel] Update copyright year and bump to version libpng-1.5.0rc07 2011-01-04 09:58:33 -06:00
Glenn Randers-Pehrson
d546f4399f [devel] Added the private PNG_UNUSED() macro definition in pngpriv.h. 
(adapted from the UNUSED() macro in pngvalid.c by John Bowler)
 2010-12-04 20:41:36 -06:00
Glenn Randers-Pehrson
b3edc73afa [devel] Changes to remove gcc warnings (John Bowler) 
Certain optional gcc warning flags resulted in warnings in libpng code.
With these changes only -Wconversion and -Wcast-qual cannot be turned on.
Changes are trivial rearrangements of code.  -Wconversion is not possible
for pngrutil.c (because of the widespread use of += et al on variables
smaller than (int) or (unsigned int)) and -Wcast-qual is not possible
with pngwio.c and pngwutil.c because the 'write' callback and zlib
compression both fail to declare their input buffers with 'const'.
 2010-11-21 14:06:41 -06:00
Glenn Randers-Pehrson
a581556b17 [master] Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin) 
Moved reading of file signature into png_read_sig (Cosmin)
Fixed atomicity of chunk header serialization (Cosmin)
Added test for io_state in pngtest.c (Cosmin)
Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts.
 2010-11-20 21:48:29 -06:00
Glenn Randers-Pehrson
f0eda4e8d7 [devel] Imported from libpng-1.5.0beta51.tar 2010-10-15 15:08:42 -05:00
Glenn Randers-Pehrson
7e1fabe2f7 [devel] Imported from libpng-1.5.0beta50.tar 2010-10-14 07:35:45 -05:00
Glenn Randers-Pehrson
d233287325 [devel] Removed space after (type cast). 2010-10-12 19:19:28 -05:00
Glenn Randers-Pehrson
1b49a71df4 [devel] Imported from libpng-1.5.0beta49.tar 2010-10-07 21:01:17 -05:00
Glenn Randers-Pehrson
83b4fc4af4 [devel] Imported from libpng-1.5.0beta48.tar 2010-10-04 23:06:09 -05:00
Glenn Randers-Pehrson
b0876110ca [devel] Fixed problem with symbols creation in Makefile.am which was assuming 
that CCP writes to standard output by default (Martin Banky).
 2010-10-04 22:24:14 -05:00