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106 Commits

Author SHA1 Message Date
Glenn Randers-Pehrson
f8110669f0 [master] Imported from libpng-1.6.32.tar 2017-08-24 16:39:24 -05:00
Glenn Randers-Pehrson
fbff8986e7 [master] Imported from libpng-1.6.31.tar 2017-07-27 05:27:39 -05:00
Glenn Randers-Pehrson
8c552ddf5b [master] Imported from libpng-1.6.30.tar 2017-06-28 13:50:50 -05:00
Glenn Randers-Pehrson
b363e01e6b [master] Imported from libpng-1.6.29.tar 2017-03-16 07:27:43 -05:00
Glenn Randers-Pehrson
0c29ab2b31 [master] Imported from libpng-1.6.24.tar 2016-08-03 21:42:00 -05:00
Glenn Randers-Pehrson
87c14c528a [master] Imported from libpng-1.6.22.tar 2016-05-26 07:25:22 -05:00
Glenn Randers-Pehrson
5756fcab2f [master] Imported from libpng-1.6.21.tar 2016-01-15 14:04:53 -06:00
Glenn Randers-Pehrson
b9c62013ef [master] Imported from libpng-1.6.19.tar 2015-11-12 07:18:03 -06:00
Glenn Randers-Pehrson
287fb89248 [master] Imported from libpng-1.6.18.tar 2015-07-22 22:41:05 -05:00
Glenn Randers-Pehrson
2b667e4923 [master] Imported from libpng-1.6.17.tar 2015-03-26 08:11:22 -05:00
Glenn Randers-Pehrson
070a616b82 [master] Imported from libpng-1.6.16.tar 2015-01-15 12:47:40 -05:00
Glenn Randers-Pehrson
da7a1e79af [master] Imported from libpng-1.6.15.tar 2014-11-20 10:23:30 -06:00
Glenn Randers-Pehrson
eed640dbe8 [master] Imported from libpng-1.6.14.tar 2014-10-22 19:33:27 -05:00
Glenn Randers-Pehrson
d55c4f32fc [master] Imported from libpng-1.6.13.tar 2014-08-21 05:59:56 -05:00
Glenn Randers-Pehrson
d21eae44e7 [master] Imported from libpng-1.6.11.tar 2014-06-05 10:01:04 -05:00
Glenn Randers-Pehrson
1cc02f0395 [master] Imported from libpng-1.6.10.tar 2014-03-06 13:15:45 -06:00
Glenn Randers-Pehrson
a710317d2f [master] Imported from libpng-1.6.9.tar 2014-02-05 22:34:07 -06:00
Glenn Randers-Pehrson
339ef1ec97 [master] Imported from libpng-1.6.8.tar 2013-12-19 09:13:08 -06:00
Glenn Randers-Pehrson
a066d49b01 [master] Imported from libpng-1.6.7.tar 2013-11-14 12:28:22 -06:00
Glenn Randers-Pehrson
fca68966b2 [master] Imported from libpng-1.6.3.tar 2013-07-17 19:43:57 -05:00
Glenn Randers-Pehrson
41db297e63 [master] Imported from libpng-1.6.1.tar 2013-03-27 20:39:36 -05:00
Glenn Randers-Pehrson
0da9cf38cd [master] Imported from libpng-1.6.0.tar 2013-02-13 23:32:06 -06:00
Glenn Randers-Pehrson
981560ae60 [master] Imported from libpng-1.5.11.tar 2012-06-14 12:53:06 -05:00
Glenn Randers-Pehrson
187694b9ec [master] Imported from libpng-1.5.10beta03.tar 2012-03-06 12:26:33 -06:00
Glenn Randers-Pehrson
52cbf46f30 [libpng15] Imported from libpng-1.5.7rc03.tar 2011-12-08 08:44:15 -06:00
John Bowler
4491fa237f [libpng15] Remove simplified interface 2011-11-23 15:41:29 -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
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
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
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
66b942ce16 [devel] Changed a dependence in scripts/pnglibconf.dfa 2011-06-17 21:17:16 -05:00
Glenn Randers-Pehrson
fb29e51dbd [devel] Imported from libpng-1.5.4beta05.tar 2011-06-17 20:42:19 -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
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
Glenn Randers-Pehrson
413138a5ca [devel] Added png_set_chop_16() API. 2011-06-13 22:07:37 -05:00
Glenn Randers-Pehrson
97039baa88 [devel] Imported from libpng-1.5.4beta01.tar 2011-06-13 20:09:22 -05:00
John Bowler
b2bee3374c [devel] Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is 
wrong (high by one) 25% of the time. Dividing by 257 with rounding is
    wrong in 128 out of 65536 cases. Getting the right answer all the time
    without division is easy.
 2011-06-10 23:24:58 -05:00
John Bowler
d273ad2d0f [devel] Implementation of premultiplied alpha support: png_set_alpha_mode 
(libpng-manual.txt still to be updated, see png.h for documentation.)
 2011-05-07 21:00:28 -05:00
Glenn Randers-Pehrson
af855e415d [devel] Remove some trailing blanks. 2011-05-07 10:54:28 -05:00
John Bowler
c5bef946b1 [devel] IDAT compression failed if preceded by a compressed text chunk 
This was because the attempt to reset the zlib stream in png_write_IDAT
happened after the first IDAT chunk had been deflated - much too late.
In this change internal functions are added to claim/release the z_stream
and, hopefully, make the code more robust.  Also deflateEnd checking is
added - previously libpng would ignore an error at the end of the stream.
 2011-05-05 17:35:39 -05:00
Glenn Randers-Pehrson
c559bb58ed [devel] Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make zlib "CMF" 
optimization configureable.
 2011-05-05 16:55:20 -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
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
bdb0130aea [devel] Remove "sPLT" from list of chunks that require compressed text 2011-04-01 14:55:01 -05:00
Glenn Randers-Pehrson
5975f31ff0 [devel] Added PNG_READ_COMPRESSED_TEXT_SUPPORTED macro. 2011-04-01 13:15:36 -05:00
Glenn Randers-Pehrson
1ecd786d95 [devel] Enable API for setting zlib non-IDAT parameters. 2011-03-31 20:53:47 -05:00
John Bowler
4d56296443 [devel] Implement expansion to 16 bits 2011-02-12 09:01:20 -06:00
John Bowler
0a5c9c02fa [devel] Corrected const_png_ in png.h to png_const_ to avoid polluting 
the namespace.  Added png_get_current_row_number and
 png_get_current_pass_number for the
 benefit of the user transform callback.
 Added png_process_data_pause and png_process_data_skip for the benefit of
 progressive readers that need to stop data processing or want to optimize
 skipping of unread data (e.g. if the reader marks a chunk to be skipped.)
 2011-01-22 17:36:34 -06:00