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91 Commits

Author SHA1 Message Date
John Bowler
c34143f615 [libpng15] Corrected Android builds and corrected libpng.vers with symbol 
prefixing This adds an API to set optimization options externally,
    providing an alternative and general solution for the non-portable
    run-time tests used by the ARM Neon code.  It also makes those tests
    compile and link on Android.
  The order of settings vs options in pnglibconf.h is reversed to allow
    settings to depend on options and options can now set (or override) the
    defaults for settings.
 2013-03-04 16:44:59 -06:00
John Bowler
d19ad72e28 [libpng15] Fixed PNG_ALIGN(ED)_MEMORY and add ability to turn off ARM_NEON 
runtime checks
 2013-02-19 10:20:59 -06:00
Glenn Randers-Pehrson
a92e5a86f8 [libpng15] Fix inconsistencies in use of PNG_GET_PALETTE_MAX 2013-02-10 18:01:47 -06:00
Glenn Randers-Pehrson
8849c000ea [libpng15] Enclosed the new png_get_palette_max 
in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED block, and revised pnglibconf.h
and pnglibconf.h.prebuilt accordingly.
 2013-02-10 16:14:54 -06:00
Glenn Randers-Pehrson
83b354ac01 [libpng15] Fixed grammar and typos in manual and in scripts/pnglibconf.dfa 2012-06-09 10:42:43 -05:00
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
8d69281998 [libpng15] Updated scripts/pnglibconf.dfa to enable USER_LIMITS when 
SAFE_LIMITS is turned on.
 2012-02-23 22:44:06 -06:00
Glenn Randers-Pehrson
8ae616fa97 [libpng15] Added PNG_SAFE_LIMITS feature to pnglibconf.dfa 
and code in pngconf.h to reset the user limits to safe ones if
PNG_SAFE_LIMITS is defined.
 2012-02-23 17:43:33 -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
Glenn Randers-Pehrson
5c5db5a55f [devel] Imported from libpng-1.5.1beta07.tar 2011-01-21 23:32:11 -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
5f59c87604 [devel] Fixed some incorrect "=" macro names in pnglibconf.dfa 2010-12-06 18:45:59 -06:00
Glenn Randers-Pehrson
e5900f1bc9 [devel] Removed "betaNN" from pnglibconf.dfa and pnglibconf.h.prebuilt 2010-10-15 20:05:41 -05:00
Glenn Randers-Pehrson
85497d7a4b [devel] Changed embedded dates in some scripts to "(PENDING RELEASE)" 2010-10-15 19:58:56 -05:00
Glenn Randers-Pehrson
5393915bf6 [devel] Bump to version libpng-1.5.0beta53 2010-10-15 19:28:31 -05:00
Glenn Randers-Pehrson
f197d6d0f6 [devel] Imported from libpng-1.5.0beta52.tar 2010-10-15 19:28:22 -05:00
Glenn Randers-Pehrson
4fa1816cf6 [devel] Restored some of the embedded dates 2010-10-15 19:14:36 -05:00
Glenn Randers-Pehrson
1c91ab2586 [devel] Bump to version libpng-1.5.0beta52 2010-10-15 15:13:31 -05:00
Glenn Randers-Pehrson
f0eda4e8d7 [devel] Imported from libpng-1.5.0beta51.tar 2010-10-15 15:08:42 -05:00
Glenn Randers-Pehrson
a0de64f3c3 [devel] Bump to version 1.5.0beta51 2010-10-14 07:35:54 -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
94b582e45e [devel] Bump to version 1.5.0beta50 2010-10-07 22:34:33 -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
209eee579a [devel] Bump to version libpng-1.5.0beta49 2010-10-04 23:06:17 -05:00