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443 Commits

Author SHA1 Message Date
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
dd81915d5b [libpng15] Corrections to the PNG_FORMAT_ values and code cleanup. 2011-11-08 14:29:45 -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
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
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
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
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
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
Glenn Randers-Pehrson
36fa2a0abd [devel] Check for up->location !PNG_AFTER_IDAT when writing unknown chunks 
before IDAT.
 2011-05-11 06:52:37 -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
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
1345cbeea8 [devel] Update change comments (1.5.2 -> 1.5.3) 2011-03-31 20:33:04 -05:00
Glenn Randers-Pehrson
6b3d50b2cd [devel] Re-initialize the zlib compressor before compressing non-IDAT chunks. 2011-03-31 20:14:29 -05:00
Glenn Randers-Pehrson
47dc5f7b54 [devel] Fix spelling in a comment. 2011-03-30 09:59:02 -05:00
Glenn Randers-Pehrson
3d3aae1697 --amend [devel] Imported from libpng-1.5.1.tar 2011-02-02 23:00:03 -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
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
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
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
Glenn Randers-Pehrson
bcb3aac3c5 [devel] Fixed a number of problems with 64-bit compilation reported by Visual 
Studio 2010 (John Bowler).
 2010-09-10 22:05:27 -05:00
Glenn Randers-Pehrson
39515c9ee0 [devel] Imported from libpng-1.5.0beta46.tar 2010-08-28 06:25:21 -05:00
Glenn Randers-Pehrson
a7119547e2 [devel] Imported from libpng-1.5.0beta45.tar 2010-08-26 07:10:48 -05:00
Glenn Randers-Pehrson
9b362b1e4f [devel] Bump to version libpng-1.5.0beta45 2010-08-24 09:05:02 -05:00
Glenn Randers-Pehrson
67439c4701 [devel] Addressed various issues identified by GCC, mostly signed/unsigned 
and shortening problems on assignment but also a few difficult to optimize
(for GCC) loops (John Bowler).
 2010-08-19 07:01:09 -05:00
Glenn Randers-Pehrson
e600c51355 [devel]Made all API functions that have const arguments and constant string 
literal pointers declare them (John Bowler).
Many APIs did not change their arguments but were not declared using
PNG_CONST.  This change corrects this.  In a few cases APIs that return
constant string literal pointers have also been changed to declare this.
Unlike the argument change this may require app changes; however the
results could never be written to (the app would crash on some platforms
where strings are not writable), so this seems advisable.
 2010-08-18 07:25:46 -05:00
Glenn Randers-Pehrson
363f96e717 [devel] Imported from libpng-1.5.0beta41.tar 2010-08-11 09:04:31 -05:00
Glenn Randers-Pehrson
836fe66e24 [devel] Imported from libpng-1.5.0beta40.tar 2010-08-06 06:57:32 -05:00
Glenn Randers-Pehrson
77396b63f9 [devel] VisualC/GCC warning fixes, VisualC build fixes 
The changes include support for function attributes in VC in addition to
    those already present in GCC - necessary because without these some
    warnings are unavoidable.  Fixes include signed/unsigned fixes in
    pngvalid and checks with gcc -Wall -Wextra -Wunused.
  VC requires function attributes on function definitions as well as
    declarations, PNG_FUNCTION has been added to enable this and the
    relevant function definitions changed.
 2010-08-02 08:00:10 -05:00
Glenn Randers-Pehrson
3df324d845 [devel] Expanded TAB characters, again. 2010-07-31 13:45:04 -05:00
Glenn Randers-Pehrson
4009a76e97 [devel] Implemented remaining "_fixed" functions and corrected warnings 
that were recently introduced, mostly resulting from
safe but uncast assignments to shorter integers.  Also added a zlib
VStudio release library project because the latest zlib Official Windows
build does not include such a thing.
 2010-07-31 06:34:36 -05:00
Glenn Randers-Pehrson
6c47e84d2e [devel] Bump to version libpng-1.5.0beta36 2010-07-29 19:10:27 -05:00
Glenn Randers-Pehrson
29034c5076 [devel] Expanded the new TAB characters. 2010-07-29 17:58:49 -05:00
Glenn Randers-Pehrson
31aee0d0c0 [devel] 
Fixed point APIs are now supported throughout (no missing APIs).
  Internal fixed point arithmetic support exists for all internal floating
    point operations.
  sCAL validates the floating point strings it is passed.
  Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
  Two new APIs exist to get the number of passes without turning on the
    PNG_INTERLACE transform and to get the number of rows in the current
    pass.
  A new test program, pngvalid.c, validates the gamma code.
  Errors in the 16 bit gamma correction (overflows) have been corrected.
  cHRM chunk testing is done consistently (previously the floating point
    API bypassed it, because the test really didn't work on FP, now the test
    is performed on the actual values to be stored in the PNG file so it
    works in the FP case too.)
  Most floating point APIs now simply call the fixed point APIs after
    converting the values to the fixed point form used in the PNG file.
  The standard headers no longer include zlib.h, which is currently only
    required for pngstruct.h and can therefore be internal.
  (Patches by John Bowler)
 2010-07-29 17:39:14 -05:00
Glenn Randers-Pehrson
915bab5fc7 [devel] Bump to version libpng-1.5.0beta35 2010-07-24 08:25:31 -05:00
Glenn Randers-Pehrson
39a8bb71d3 [devel] Imported from libpng-1.5.0beta34.tar 2010-07-12 06:45:23 -05:00
Glenn Randers-Pehrson
8f9de7acbd [devel] Bump back to version libpng-1.5.0beta34 2010-07-06 07:46:10 -05:00
Glenn Randers-Pehrson
289500ab8d [devel] Imported from libpng-1.5.0beta33.tar 2010-06-28 20:21:22 -05:00
Glenn Randers-Pehrson
4db344230d [devel] Imported from libpng-1.5.0beta32.tar 2010-06-25 20:18:44 -05:00
Glenn Randers-Pehrson
821b7106b2 [devel] Imported from libpng-1.5.0beta31.tar 2010-06-25 20:06:43 -05:00
Glenn Randers-Pehrson
ef3831a1fe [devel] Imported from libpng-1.5.0beta30.tar 2010-06-25 20:06:40 -05:00
Glenn Randers-Pehrson
5feb87cd0e [devel] Imported from libpng-1.5.0beta29.tar 2010-06-25 20:06:38 -05:00
Glenn Randers-Pehrson
57d9617964 [devel] Imported from libpng-1.5.0beta28.tar 2010-06-25 20:06:35 -05:00
Glenn Randers-Pehrson
5b3d554e1e [devel] Imported from libpng-1.5.0beta26.tar 2010-06-25 20:06:30 -05:00
Glenn Randers-Pehrson
53c07f5909 [devel] Imported from libpng-1.5.0beta25.tar 2010-06-25 20:06:28 -05:00
Glenn Randers-Pehrson
537c1a5747 [devel] Imported from libpng-1.5.0beta24.tar 2010-05-07 09:55:50 -05:00
Glenn Randers-Pehrson
f24daf23a5 [devel] Added more blank lines for readability. 2010-05-06 09:44:04 -05:00
Glenn Randers-Pehrson
aa3143cf6f [devel] Imported from libpng-1.5.0beta23.tar 2010-04-29 10:56:05 -05:00
Glenn Randers-Pehrson
bb317fb0b2 [devel] Bump to libpng-1.5.0beta22 2010-04-28 07:44:23 -05:00
Glenn Randers-Pehrson
deec549d9f [devel] Imported from libpng-1.5.0beta21.tar 2010-04-26 22:51:22 -05:00
Glenn Randers-Pehrson
9c5beb56e3 [devel] Bump back to version libpng-1.5.0beta21 2010-04-24 20:35:28 -05:00
Glenn Randers-Pehrson
b56e0d06f9 [devel] Imported from libpng-1.5.0beta19.tar 2010-04-24 12:17:49 -05:00
Glenn Randers-Pehrson
5623f781bc [devel] Imported from libpng-1.5.0beta18.tar 2010-04-17 19:09:22 -05:00
Glenn Randers-Pehrson
3cd7cffd0c [devel] Imported from libpng-1.5.0beta17.tar 2010-04-16 19:28:42 -05:00
Glenn Randers-Pehrson
92a3ef4a14 [devel] Combined multiple png_warning() calls for a single error. 2010-03-31 21:50:21 -05:00
Glenn Randers-Pehrson
b2eacd3e1f [devel] Imported from libpng-1.5.0beta15.tar 2010-03-17 07:33:10 -05:00
Glenn Randers-Pehrson
4a215541e7 [devel] Imported from libpng-1.5.0beta14.tar 2010-03-14 09:42:07 -05:00
Glenn Randers-Pehrson
632a84eff7 [devel] Make all png_debug macros into *unterminated* statements 
or expressions (i.e. a trailing ';' must always be added) and correct
the format statements in various png_debug messages.
 2010-03-09 22:28:33 -06:00
Glenn Randers-Pehrson
86f88ddd53 [devel] Imported from libpng-1.5.0beta12.tar 2010-03-08 21:31:46 -06:00
Glenn Randers-Pehrson
c3cd22b404 [devel] Moved "#include png.h" inside pngpriv.h and removed "#include png.h" 
from the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES"
and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler).
Also created new pngdebug.h and moved debug definitions there.
 2010-03-08 21:10:25 -06:00
Glenn Randers-Pehrson
aaf377c874 [devel] Bump to version libpng-1.5.0beta12 2010-03-08 11:21:39 -06:00
Glenn Randers-Pehrson
e4c706af54 [devel] Imported from libpng-1.5.0beta11.tar 2010-03-06 14:53:56 -06:00
Glenn Randers-Pehrson
45624d6c2c [devel] Fix inconsistent whitespace in pngtrans.c, pngwrite.c, and pngwtran.c 2010-03-03 11:40:43 -06:00
Glenn Randers-Pehrson
65a223794a [devel] Bump to version libpng-1.5.0beta11 2010-03-03 05:39:36 -06:00
Glenn Randers-Pehrson
95ca51b6e2 [devel] Imported from libpng-1.5.0beta09.tar 2010-02-19 14:13:03 -06:00
Glenn Randers-Pehrson
6a9e480512 [devel] Imported from libpng-1.5.0beta07.tar 2010-02-19 09:59:25 -06:00
Glenn Randers-Pehrson
7a5be53631 [devel] Imported from libpng-1.5.0beta06.tar 2010-02-14 07:18:23 -06:00
Glenn Randers-Pehrson
6e283234c9 [devel] Imported from libpng-1.5.0beta05.tar 2010-02-12 21:28:31 -06:00
Glenn Randers-Pehrson
f97953181a [devel] Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES 
and updated the "last change" comments to 1.5.0
 2010-02-09 01:16:48 -06:00
Glenn Randers-Pehrson
e3f3c4ea0b [devel] Imported from libpng-1.5.0beta01.tar 2010-02-07 18:10:43 -06:00
Glenn Randers-Pehrson
67a83db98d [devel] Imported from libpng-1.4.0rc08.tar 2010-01-01 18:32:13 -06:00
Glenn Randers-Pehrson
e69b55d9ac [devel] Update copyright year to 2010 2010-01-01 10:29:06 -06:00
Glenn Randers-Pehrson
f81b50bf9d [devel] Imported from libpng-1.4.0rc06.tar 2009-12-29 16:51:34 -06:00
Glenn Randers-Pehrson
dbcfb7151f [devel] Imported from libpng-1.4.0rc04.tar 2009-12-25 14:27:23 -06:00
Glenn Randers-Pehrson
5265c3889c [devel] Bump to version 1.4.0rc03 2009-12-22 09:10:46 -06:00
Glenn Randers-Pehrson
62ca98ef5e [devel] Imported from libpng-1.4.0rc02.tar 2009-12-20 15:16:15 -06:00
Glenn Randers-Pehrson
addb84b1bc [devel] Imported from libpng-1.4.0beta109.tar 2009-12-13 08:15:55 -06:00
Glenn Randers-Pehrson
0452bbcf84 [devel] Imported from libpng-1.4.0beta108.tar 2009-12-11 18:02:44 -06:00
Glenn Randers-Pehrson
03f9b02953 [devel] Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects. 
and added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files.
 2009-12-04 08:40:41 -06:00
Glenn Randers-Pehrson
e4b9fc28de [devel] Imported from libpng-1.4.0beta106.tar 2009-11-27 00:28:34 -06:00
Glenn Randers-Pehrson
5a2015e146 [devel] Bump to version 1.4.0beta106 2009-11-26 11:46:24 -06:00
Glenn Randers-Pehrson
d23f2b2845 [devel] Imported from libpng-1.4.0beta105.tar 2009-11-24 22:14:21 -06:00
Glenn Randers-Pehrson
bbd20f0a74 [devel] Imported from libpng-1.4.0beta104.tar 2009-11-21 21:51:28 -06:00
Glenn Randers-Pehrson
f4ea22480a [devel] Make the 'png_jmpbuf' macro expand to a call that records the correct 
longjmp function as well as returning a pointer to the setjmp
    jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'.
    (John Bowler)
 2009-11-20 21:38:24 -06:00
Glenn Randers-Pehrson
edcd6e14c6 [devel] Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard 
around the call to png_flush() after png_write_IEND().  See 1.4.0beta32,
1.4.0beta50 changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41
CHANGES in the libpng_master branch.  Someone needs this feature but
I don't remember who.
 2009-11-20 20:28:29 -06:00
Glenn Randers-Pehrson
311c8476f8 [devel] Bump to version 1.4.0beta103 2009-11-20 09:46:59 -06:00
Glenn Randers-Pehrson
cd7d63a805 [devel] Imported from libpng-1.4.0beta102.tar 2009-11-18 10:31:31 -06:00