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436 Commits

Author SHA1 Message Date
Lucas CHOLLET
75748d93ce [libpng16] Add support for reading and writing the cICP chunk 
This chunk was added in the third edition of the PNG specification and
contains Coding Independent Code Points (related to color space
description). It is fairly simple as it only contains four fields of one
byte each: Colour Primaries, Transfer Function, Matrix Coefficients,
Video Full Range Flag.

The test file originally comes from the related WPT test case:
https://github.com/web-platform-tests/wpt/blob/master/png/support/cicp-display-p3.png

Note that I reencoded the file to make it match libpng's default
encoding parameters (it only modifies the IDAT chunk).

This is a cherry-pick of commit 65925ad4b2cbed934d5d850fe764dc46c4becbcb
from branch 'libpng18'.

Reviewed-by: John Bowler <jbowler@acm.org>
Reviewed-by: Chris Blume <ProgramMax@gmail.com>
Reviewed-by: Cosmin Truta <ctruta@gmail.com>
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
 2025-01-02 11:15:20 +02:00
John Bowler
d7d950e8bd [libpng16] chore: Clean up the leading blank lines from all source files 
The leading blank lines are apparently an artefact of an older source
control system.  They are not required and they look like accidents,
because starting a source file with a blank line is not a regular habit
of software developers nowadays.

This is a cherry-pick of commit 37cc20add8fb5b83bb5299a26cd3b41e0f776017
from branch 'libpng18'.

Signed-off-by: John Bowler <jbowler@acm.org>
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
 2024-10-11 11:51:04 +03:00
Cosmin Truta
27e548af25 chore: Clean up the return statements and update example.c accordingly 2024-01-23 21:25:03 +02:00
Cosmin Truta
92b2128a75 chore: Add, relocate or rephrase debug statements, for better clarity 2024-01-23 02:33:54 +02:00
Wan-Teh Chang
8be5c147d5 Don't report a valid tRNS chunk if it was canceled 
Add special handling of the PNG_INFO_tRNS flag to png_get_valid() to
not report a canceled tRNS chunk as valid.

Fix https://github.com/glennrp/libpng/issues/482

Signed-off-by: Cosmin Truta <ctruta@gmail.com>
 2023-06-20 19:20:38 +03:00
Ben Bullock
a37d483651 Eliminate spaces between function name and ( 2021-03-13 02:37:00 -05:00
Cosmin Truta
a873893279 Remove the "last changed" version information from source comments 
This information is maintained by the version control system.
 2018-07-28 18:47:21 -04:00
Cosmin Truta
46aedd8961 Release libpng version 1.6.35 2018-07-15 23:58:00 -04:00
Cosmin Truta
a74aa9a002 [libpng16] Replace the remaining uses of png_size_t with size_t 
In v1.6.0, size_t became a required type. It should be used
consistently. To maintain backwards compatibility, png_size_t
is still maintained in deprecated form.
 2018-06-17 22:37:44 -04:00
Glenn Randers-Pehrson
916117d970 [libpng16] Allow compresion-type to be NULL in png_set_iCCP(). 2018-03-29 10:37:12 -05:00
Glenn Randers-Pehrson
7784cd3f6f [libpng16] Fix png_get_iCCP() to allow null compression-type 2018-03-28 18:02:32 -05:00
luz.paz
eb91c0e4ed More misc. typos 
found via `codespell-q 3`
please review
 2018-02-09 06:57:29 -05:00
Glenn Randers-Pehrson
58720d3c06 [libpng16] Fix "last changed" dates 2017-08-29 12:29:03 -05:00
Glenn Randers-Pehrson
f6ca33d42c [libpng16] Bump version to 1.6.33beta01 2017-08-25 18:54:30 -05:00
Glenn Randers-Pehrson
df7e9dae0c [libpng16] Imported from libpng-1.6.32.tar 2017-08-24 16:39:02 -05:00
Glenn Randers-Pehrson
554d4400ab [libpng16] Fix "const" declaration info_ptr argument to png_get_eXIf_1(). 2017-08-04 15:38:41 -05:00
Glenn Randers-Pehrson
d930d36155 [libpng16] Restored png_get_eXIf_1() and png_set_eXIf_1() because strlen(eXIf_buf) 
does not work (the eXIf chunk data can contain zeroes).
 2017-08-03 10:29:10 -05:00
Glenn Randers-Pehrson
3fa1df48a1 [libpng16] Removed png_get_eXIf_1() and png_set_eXIf_1(). 2017-08-02 17:27:41 -05:00
Glenn Randers-Pehrson
7c709f039f [libpng16] Restored png_get_eXIf() and png_set_eXIf() to maintain API compatability. 2017-08-02 16:48:11 -05:00
Glenn Randers-Pehrson
3524b0d201 [libpng16] Update "Last changed" dates and some copyright years 2017-07-31 17:03:17 -05:00
Glenn Randers-Pehrson
3e753f5cbe [libpng16] Changed name of png_get_eXIF and png_set_eXIf() to png_get_eXIf_1() 
and png_set_eXIf_1(), respectively, to avoid breaking API compatibility
with libpng-1.6.31.
 2017-07-31 16:56:30 -05:00
Glenn Randers-Pehrson
40afb68570 [libpng16] Added calls to png_handle_eXIf(() in pngread.c and png_write_eXIf() 
in pngwrite.c, and made various other fixes to png_write_eXIf().
Eliminated png_ptr->num_exif member from pngstruct.h and added num_exif
  to arguments for png_get_eXIf() and png_set_eXIf().
 2017-07-31 14:21:46 -05:00
Glenn Randers-Pehrson
68cb0aaee3 [libpng16] Implement eXIf chunk support 2017-07-13 11:22:48 -05:00
Glenn Randers-Pehrson
0c440812db [libpng16] Imported from libpng-1.6.26.tar 2016-10-19 19:11:38 -05:00
Glenn Randers-Pehrson
3875d9af4c [libpng16] Quieted 45 (out of 86 remaining) -Wconversion compiler warnings 2016-10-02 17:08:46 -05:00
Glenn Randers-Pehrson
b50d5cea2b [libpng16] Imported from libpng-1.6.24.tar 2016-08-03 21:32:26 -05:00
Glenn Randers-Pehrson
dd70604cec [libpng16] Fixed more indentation 2016-07-15 11:20:46 -05:00
Glenn Randers-Pehrson
9295264b6f [libpng16] Update CHANGES and ANNOUNCE 2016-03-07 07:17:28 -06:00
Krishnaraj Bhat
46c47291e8 gcc6: fix misleading indentation warning 
Although not a bug in this case, but shows up when -Wall is used
 2016-03-07 13:56:15 +05:30
Glenn Randers-Pehrson
4d8de33979 [libpng16] Update copyright uears in source files. 2015-12-13 22:41:17 -06:00
Glenn Randers-Pehrson
c98f7fb4e3 [libpng16] Imported from libpng-1.6.17.tar 2015-03-26 08:11:12 -05:00
Glenn Randers-Pehrson
c5370ede95 [libpng16] Reverted "& 0xff" additions of version 1.6.17beta01. Libpng passes 
the Coverity scan without them.
 2015-03-21 11:54:32 -05:00
Glenn Randers-Pehrson
7011a8cec3 [libpng16] Added "& 0xff" to things being typecast to "png_byte". 2015-02-27 18:53:44 -06:00
Glenn Randers-Pehrson
60a7506744 [libpng16]Allow calling png_get_IHDR() with NULL arguments (Reuben Hawkins). 2015-02-18 12:24:46 -06:00
Glenn Randers-Pehrson
6ef579df50 [libpng16] Imported from libpng-1.6.17beta01.tar 2015-01-28 19:15:16 -06:00
Glenn Randers-Pehrson
e8ef689cb9 [libpng16] Imported from libpng-1.6.15.tar 2014-11-20 10:22:57 -06:00
Glenn Randers-Pehrson
cda68df8c1 [libpng16] Changed "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */" 2014-11-06 22:11:39 -06:00
Glenn Randers-Pehrson
b963feeec6 [libpng16] More cosmetic changes 2014-11-01 13:18:36 -05:00
Glenn Randers-Pehrson
5d713fe123 [libpng16] Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to 
"if (x !== 0)"
 2014-10-31 20:58:40 -05:00
Glenn Randers-Pehrson
212fd5745d [libpng16] Bump version to 1.6.13beta01 2014-06-11 21:13:33 -05:00
Glenn Randers-Pehrson
e429c66cea [libpng16] Imported from libpng-1.6.12.tar 2014-06-11 20:41:51 -05:00
Glenn Randers-Pehrson
da7b692ce0 [libpng16] Bump version to 1.6.12beta01 2014-06-06 11:57:30 -05:00
Glenn Randers-Pehrson
c4e0f3de64 [libpng16] Imported from libpng-1.6.11.tar 2014-06-05 10:00:45 -05:00
Cosmin Truta
6572c7dab5 [libpng16] Silence 'unused parameter' build warnings (Cosmin). 2014-03-22 09:20:53 -05:00
Glenn Randers-Pehrson
5087805e7c [libpng16] Imported from libpng-1.6.1.tar 2013-03-27 20:36:57 -05:00
Glenn Randers-Pehrson
871b1d0fab [libpng16] Bump version to 1.6.1beta05 2013-03-02 15:03:15 -06:00
Glenn Randers-Pehrson
f3af706c2a [libpng16] Imported from libpng-1.6.0beta05.tar 2013-03-01 21:38:03 -06:00
Glenn Randers-Pehrson
adb9613699 [libpng16] Imported from libpng-1.6.1beta02.tar 2013-02-18 21:25:47 -06:00
Glenn Randers-Pehrson
b4ef7c4af2 [libpng16] Use parentheses consistently in "#if defined()" tests. 
Folded some long lines.
 2013-02-17 15:41:36 -06:00
Glenn Randers-Pehrson
c53778ff53 [libpng16] Imported from libpng-1.6.0.tar 2013-02-13 22:53:57 -06:00