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Author SHA1 Message Date
Cosmin Truta
ee7967eea4 CMakeLists: Fix detection of libm 
Only use libm on Unix and Unix-like systems, except for Apple (where
it's unnecessary), and BeOS and Haiku (where it's unavailable).

Avoid searching for libm at explicit locations. They may be incorrect,
especially for cross-platform builds.
 2018-11-17 21:31:55 -05:00
Cosmin Truta
a54a0562c5 Rerun autogen.sh 2018-09-04 01:10:21 -04:00
Cosmin Truta
94429a335b Remove the "last changed" version information from source comments 2018-09-04 00:58:55 -04:00
Cosmin Truta
1ceaa83a84 Fix the build with MSVC ARM64 2018-09-04 00:53:38 -04:00
Cosmin Truta
b66ed71131 Restore the ANSI C compliance after adding the ARM optimization 
Also apply style and formatting fixes
 2018-09-04 00:15:30 -04:00
Richard Townsend
7734cda20c Optimize png_do_expand_palette for ARM 
ARM-specific optimization processes 8 or 4 pixels at once.
Improves performance by around 10-22% on a recent ARM Chromebook.
 2018-09-04 00:04:58 -04:00
Cosmin Truta
2fc5ddff18 Restore the ANSI C compliance after applying the MSVC ARM64 fix 2018-09-03 22:27:45 -04:00
zzzzRuby
8033c96f32 Fix build errors with MSVC ARM64 
(Contributed by Zhijie Liang)
 2018-09-03 22:26:06 -04:00
Samuel Williams
d3d1baadb4 Prefer memcpy to manual pointer arithmetic. 2018-08-19 01:16:22 -04:00
luz.paz
a294c1bcb6 Some more trivial source typos 
Found via `codespell` and `grep`
 2018-08-19 00:57:20 -04:00
Cosmin Truta
ceb327789b Remove top-level const from function-scope variables 
As per the const correctness rules, top-level const-ness of data
in automatic scopes does not propagate outside of these scopes
(unlike const-ness at lower levels, such as pointers to const data).

Previously, const was used liberally, but inconsistently across the
libpng codebase. Using const wherever applicable is not incorrect.
However, _consistent_ use of const is difficult to maintain in such
conditions.

In conclusion, we shall continue to use const only where doing so is
strictly necessary:

1. If a function guarantees that it will not modify an argument
   passed by pointer, the corresponding function parameter should be
   a pointer-to-const (const T *).

2. Static data should not be modified, therefore it should be const.

Reference:
Google C++ Style Guide
https://google.github.io/styleguide/cppguide.html#Use_of_const
 2018-08-18 22:47:16 -04:00
Cosmin Truta
1ef8882814 Replace the remaining uses of PNG_CONST with const 
In v1.6.0, compiler support for const became a requirement.
It should be used consistently. To maintain backwards compatibility,
PNG_CONST is still maintained in deprecated form.
 2018-08-18 21:01:02 -04:00
Cosmin Truta
58eedced25 CMakeLists: Update the contributor list 2018-08-18 19:49:56 -04:00
Cosmin Truta
1d89a5db66 CMakeLists: Fix style 2018-08-18 19:49:56 -04:00
Cosmin Truta
43446b735d Fix a build warning on OpenBSD 
(Contributed by Theo Buehler)
 2018-08-12 23:46:02 -04:00
Cosmin Truta
6c059f8f5b configure: Remove the memset check and the HAVE_MEMSET macro 
The compatibility workaround png_memset() has been removed long ago.
The availability of memset() is a platform requirement.
 2018-08-11 00:47:18 -04:00
Cosmin Truta
f5d48df418 CMakeLists: Remove the PNGARG option 
Pre-ANSI function prototypes are no longer supported.
 2018-08-11 00:47:18 -04:00
Cosmin Truta
9730362202 CMakeLists: Avoid symlinks on MSYS 
create_symlink breaks the MSYS generator in the Windows CMake.
 2018-08-10 00:58:48 -04:00
Cameron Cawley
7cb7afb43d CMake: Fix compilation on systems without libm 2018-08-01 00:24:48 -04:00
Cosmin Truta
1bd4214a42 Clean up the scripts/ directory 
Delete the files that are unused, redundant, or fundamentally broken:
def.c, makefile.bor, makefile.knr, makefile.msc, makefile.solaris-x86,
makefile.tc3
 2018-07-29 22:19:43 -04:00
Cosmin Truta
6d55a14c58 Update projects/vstudio 2018-07-29 21:51:48 -04:00
Cosmin Truta
8440326590 Update the documentation 2018-07-29 00:33:12 -04:00
Cosmin Truta
b729fff4a3 Remove the Y2K compliance statement 
As of July 2018, this statement is no longer necessary.
 2018-07-28 23:39:55 -04:00
Cosmin Truta
c36c09f004 Update the export control information 
Also reformat the license text.
 2018-07-28 23:00:48 -04:00
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
47f18784e4 Rerun autogen.sh 2018-07-28 18:34:58 -04:00
Cosmin Truta
d4fb621429 Bump version to 1.6.36.git and update copyright notice 2018-07-28 18:34:58 -04:00
Vicki Pfau
fb6312a9f9 ARM: Disable hand-written AArch32 NEON on AArch64 2018-07-16 22:52:24 -04:00
Vicki Pfau
ddc842bf06 CMakeLists: Fix passing "off" for PNG optimizations 2018-07-16 22:52:04 -04:00
Vicki Pfau
46924bd877 CMakeLists: Fix disabling hardware optimizations 2018-07-16 22:50:32 -04:00
Cosmin Truta
c17d164b44 Run autogen.sh 2018-07-15 23:58:00 -04:00
Cosmin Truta
46aedd8961 Release libpng version 1.6.35 2018-07-15 23:58:00 -04:00
Cosmin Truta
2471434d29 [libpng16] Added missing parentheses to a macro definition 
(Contributed by github.com/irwir)
 2018-07-01 23:32:08 -04:00
Cosmin Truta
8a05766cb7 [libpng16] Fix the calculation of row_factor in png_check_chunk_length 
(Bug report by Thuan Pham, SourceForge issue #278)
 2018-06-17 22:56:29 -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
Glenn Randers-Pehrson
cde1e1fe79 [libpng16] Bump version to 1.6.35beta02 2018-03-06 14:06:57 -06:00
Glenn Randers-Pehrson
0e06b5948c [libpng16] Imported from libpng-1.6.35beta01.tar 2018-03-06 14:06:24 -06:00
Glenn Randers-Pehrson
3fecfeada1 Merge branch 'more-misc-typos' of git://github.com/luzpaz/libpng into libpng16 2018-03-05 11:18:16 -06:00
taigacon
140f3aa280 Fix png_set_option to work. 2018-03-05 22:10:41 +08:00
luz.paz
eb91c0e4ed More misc. typos 
found via `codespell-q 3`
please review
 2018-02-09 06:57:29 -05:00
Glenn Randers-Pehrson
d5e4915ebe [libpng16] Update copyright year to 2018 in png.c 2018-01-07 20:06:11 -06:00
Glenn Randers-Pehrson
fe669f6f38 [libpng16] Update copyright year 2018-01-07 19:55:19 -06:00
Glenn Randers-Pehrson
84e6e35675 [libpng16] Fix potential problem with bKGD (Cosmin Truta) 2018-01-07 17:43:09 -06:00
Glenn Randers-Pehrson
28d0ee757d [libpng16] temporarily disable 16-to-8 downscaling in the fuzzer 2017-12-17 17:52:45 -06:00
Glenn Randers-Pehrson
f07b985ddb [libpng16] CHange "ASM C" to "C ASM" in CMakelists.txt 2017-12-17 17:49:26 -06:00
Vadim Zeitlin
d532334ef5 Avoid -Wundef warnings when building libpng 
Always define PNG_INTEL_SSE_OPT and PNG_INTEL_SSE_IMPLEMENTATION before
comparing them with 0.
 2017-11-13 22:06:01 +01:00
Glenn Randers-Pehrson
fc32eb1662 [libpng16] Initialize entire 256-entry palette in png_set_PLTE(). 2017-11-04 16:31:45 -05:00
Glenn Randers-Pehrson
7ca2f0e078 [libpng16] Fix one more typo 2017-11-03 11:31:39 -05:00