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424 Commits

Author SHA1 Message Date
Glenn Randers-Pehrson
9477ecdfa6 [libpng16] Updated copyright year to 2013 in newly-changed files 2013-01-01 07:45:42 -06:00
John Bowler
ba2dd33d9c [libpng16] Some files were omitted from a previous checkin. Here they are. 2012-08-10 10:58:01 -05:00
John Bowler
dff6f4c4f0 [libpng16Cleanup of png_set_filler(). This function does very different things 
on read and write.  In libpng 1.6 the two cases can be distinguished and
considerable code cleanup, and extra error checking, is possible.  This
makes calls on the write side that have no effect be ignored with a
png_app_error(), which can be disabled in the app using
png_set_benign_errors(), and removes the spurious use of usr_channels
on the read side.
 2012-08-09 21:17:56 -05:00
Glenn Randers-Pehrson
905cc94e3d [libpng16] Don't check palette indexes if num_palette is 0 (as it can be in 
MNG files).
 2012-06-07 10:18:25 -05:00
Glenn Randers-Pehrson
14ca47b453 [libpng16] Improved performance of new do_check_palette_indexes() function 
(only update the value when it actually increases, move test for whether
the check is wanted out of the function.
 2012-06-06 13:30:30 -05:00
John Bowler
9ff37ea94f [libpng16] Fix an off-by-one error in the palette index checking function. 2012-03-10 20:03:06 -06:00
John Bowler
29a6ba01a7 [libpng16] Fixed build warnings (MSVC, GCC, GCC v3). Cygwin GCC with default 
options declares 'index' as a global, causing a warning if it is used as a
local variable.  GCC 64-bit warns about assigning a (size_t) (unsigned 64-bit)
to an (int) (signed 32-bit).  MSVC, however, warns about using the
unary '-' operator on an unsigned value (even though it is well defined
by ANSI-C to be ~x+1).  The padding calculation was changed to use a
different method.  Removed the tests on png_ptr->pass.
 2012-03-03 20:49:03 -06:00
Glenn Randers-Pehrson
eeb1bb678d [libng16] Added palette-index checking while writing. 
Relocated palette-index checking function from pngrutil.c to pngtrans.c
 2012-03-02 22:10:15 -06:00
John Bowler
8fb6c6a9b3 [libpng16] Eliminated Intel icc/icl compiler warnings. The Intel (GCC derived) 
compiler issues slightly different warnings from those issued by the
current vesions of GCC. This eliminates those warnings by
adding/removing casts and small code rewrites.
 2012-01-25 07:47:44 -06:00
Glenn Randers-Pehrson
1531bd61a0 [libpng16] Updated copyright year to 2012 2012-01-01 14:45:04 -06:00
John Bowler
5d56786eff [libpng16] Implemented 'restrict' for png_info and png_struct. 
Added new "png_structrp" typedef. Because of the
way libpng works both png_info and png_struct are always accessed via a
single pointer.  This means adding C99 'restrict' to the pointer gives
the compiler some opportunity to optimize the code.  This change allows that.
 2011-12-24 09:12:00 -06:00
Glenn Randers-Pehrson
d404b6d488 [devel] Imported from libpng-1.5.4.tar 2011-07-07 06:26:30 -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
e1018a5bbb [devel] Imported from libpng-1.5.3beta05.tar 2011-05-05 21:06:51 -05:00
Glenn Randers-Pehrson
cb1aee2506 [devel] Fixed bug with stripping the filler or alpha channel when writing, 
that was introduced in libpng-1.5.2beta01.
 2011-04-16 19:27:34 -05:00
Glenn Randers-Pehrson
dcc3505c7b [devel] Imported from libpng-1.5.2.tar 2011-03-31 11:29:05 -05:00
John Bowler
9616ad9828 [devel] Revert png_get_current_row_number() to previous (1.5.2beta01) behavior. 2011-02-16 06:13:46 -06:00
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
5432c01ffd [devel] Fix png_get_current_row_number in the interlaced case. 2011-02-12 08:59:17 -06:00
Glenn Randers-Pehrson
3d3aae1697 --amend [devel] Imported from libpng-1.5.1.tar 2011-02-02 23:00:03 -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
b86b4928d6 [devel] Added const_png_structp and const_png_infop types, and used them in 
prototypes for most png_get_*() functions.
 2011-01-21 23:12:51 -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
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
9c69091c9d [devel] Fix typo in pngtrans.c (ifndef should be ifdef) 2010-08-27 11:39:38 -05:00
Glenn Randers-Pehrson
925d23b32a [devel] Conditionally compile parts of pngrtran.c and pngtrans.c 
depending on PNG_16BIT_SUPPORTED
 2010-08-26 21:43:18 -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
2c700f970c [devel] Imported from libpng-1.5.0beta39.tar 2010-08-02 08:02:00 -05:00
Glenn Randers-Pehrson
bdabd8f75b [devel] Bump to version libpng-1.5.0beta38 2010-07-31 07:17:30 -05:00
Glenn Randers-Pehrson
4eb18e9ca2 [devel] Imported from libpng-1.5.0beta37.tar 2010-07-30 14:47:53 -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
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
cf2fd3b6ca [devel] Corrected protection of png_get_user_transform_ptr. 
The API declaration in png.h is removed if both READ and WRITE USER_TRANSFORM
are turned off but was left defined in pngtrans.c
 2010-04-28 21:25:18 -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
c2fa196d14 [devel] Imported from libpng-1.5.0beta16.tar 2010-04-01 07:19:17 -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
c6fecfbaa5 [devel] Imported from libpng-1.5.0beta13.tar 2010-03-10 09:12:03 -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
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
931400bd04 [devel] Imported from libpng-1.4.0beta103.tar 2009-11-20 22:58:48 -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
Glenn Randers-Pehrson
ac18f8a706 [devel] Bump to version 1.4.0beta102 2009-11-14 21:52:06 -05:00
Glenn Randers-Pehrson
b612eee957 [devel] Imported from libpng-1.4.0beta99.tar 2009-11-14 05:45:49 -06:00
Glenn Randers-Pehrson
fa557347ba [devel] Imported from libpng-1.4.0beta97.tar 2009-11-12 20:04:58 -06:00
Glenn Randers-Pehrson
bdbade92a7 [devel] Bump to version 1.4.0beta96 2009-11-12 06:24:42 -06:00