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Author SHA1 Message Date
Glenn Randers-Pehrson
761d833372 [libpng16] Quieted all remaining -Wconversion compiler warnings 2016-10-02 18:46:35 -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
ad3318ddc8 [libpng16] Bump version to 1.6.26beta03 2016-10-01 19:44:42 -05:00
Glenn Randers-Pehrson
7184475a98 [libpng16] Imported from libpng-1.6.26beta02.tar 2016-10-01 19:44:32 -05:00
Glenn Randers-Pehrson
c180e7a437 [libpng16] Updated CHANGES and ANNOUNCE 2016-09-30 21:54:06 -05:00
Glenn Randers-Pehrson
fbe3e002bc Merge branch 'libpng16' of git://github.com/jbowler/libpng into libpng16 2016-09-30 21:51:27 -05:00
Glenn Randers-Pehrson
b5b77a72b4 Revert "[libpng16] Quieted about 100 warnings from clang-3.8 in pngtrans.c, pngread.c," 
This reverts commit 97dfccb632.
 2016-09-30 21:34:21 -05:00
Glenn Randers-Pehrson
97dfccb632 [libpng16] Quieted about 100 warnings from clang-3.8 in pngtrans.c, pngread.c, 
pngwrite.c, pngunknown.c, and pngvalid.c.  Several warnings still remain
in pngvalid.c
 2016-09-30 21:02:03 -05:00
John Bowler
319c9852bf Unsigned overflow 
Remove all currently detected cases of unsigned overflow.  Detection is
runtime, so test case dependent.  The changes to pngvalid.c eliminate
spurious and probably invalid tests with one while loop exception.

Apart from that and the change to the dependence on the intended
unsigned overflow in pngtrans.c the changes are limited to altering the
meme for an unsigned 'x' from:

   while (x-- > 0)

to

   for (; x > 0; --x)

This works because, in all cases, the control variable is not used in
the loop.  The 'while' meme was, at one time, warn'ed by GCC so it is
probably a good change, for some weird religious value of good.

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-09-30 18:37:22 -07:00
Glenn Randers-Pehrson
1b363fa6b0 [libpng16] Quieted 116 (out of 288) -Wconversion compiler warnings by changing 
flag definitions in pngpriv.h from 0xnnnn to 0xnnnnU and trivial changes
in png.c, pngread.c, and pngwutil.c.
 2016-09-30 17:19:12 -05:00
Glenn Randers-Pehrson
fa24421216 [libpng16] Quieted 74 (out of 288) -Wconversion compiler warnings by changing 
flag definitions in pngpriv.h from 0xnnnn to 0xnnnnU.
 2016-09-30 16:26:07 -05:00
Glenn Randers-Pehrson
d84fd77bf8 [libpng16] Quieted a warning from clang-3.8 in pngtrans.c. 2016-09-30 14:22:57 -05:00
Glenn Randers-Pehrson
04dab1e82d [libpng16] Updated the documentation about CRC and ADLER32 handling. 2016-09-26 11:15:22 -05:00
Glenn Randers-Pehrson
394be58371 [libpng16] Bump version to 1.6.26beta02 2016-09-26 08:58:04 -05:00
Glenn Randers-Pehrson
217546ae43 [libpng16] Imported from libpng-1.6.26beta01.tar 2016-09-26 08:57:44 -05:00
Glenn Randers-Pehrson
8aa1638ccc [libpng16] Add tests/badcrc.png and tests/badadler.png to tests/pngtest. 
Merged pngtest.c with libpng-1.7.0beta84/pngtest.c
 2016-09-26 08:09:44 -05:00
Glenn Randers-Pehrson
89ea081433 [libpng16] If CRC handling of critical chunks has been set to PNG_CRC_QUIET_USE, 
ignore the ADLER32 checksum in the IDAT chunk as well as the chunk CRCs.
 2016-09-25 17:42:15 -05:00
Glenn Randers-Pehrson
7835716cef [libpng16] Changed PNG_ZLIB_VERNUM to ZLIB_VERNUM in pngpriv.h, pngstruct.h, 
and pngrutil.c.
 2016-09-19 16:46:54 -05:00
Glenn Randers-Pehrson
cb1787f033 [libpng16] Conditionally compile png_set_benign_error in pngtest.c 2016-09-11 22:02:57 -05:00
Glenn Randers-Pehrson
1842d7c865 [libpng16] Issue a png_benign_error instead of a png_error on ADLER32 mismatch 
while decoding compressed data chunks.
 2016-09-11 22:02:05 -05:00
Glenn Randers-Pehrson
bc2bb96cd7 [libpng16] Conditionally compile png_set_benign_errors() in pngread.c 2016-09-11 19:22:28 -05:00
Glenn Randers-Pehrson
5cb1700702 [libpng16] Update CHANGES and ANNOUNCE and last-changed date in pngset.c 2016-09-03 11:51:29 -05:00
John Bowler
7dc0329250 [libpng16] png_set_pCAL: do not png_error on read 
Because png_handle_pCAL has allocated memory to free.

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-09-02 19:26:42 -07:00
Glenn Randers-Pehrson
90ea4af4a1 [libpng16] Update CHANGES and ANNOUNCE 2016-09-01 17:28:08 -05:00
Glenn Randers-Pehrson
a744b11975 Merge branch 'libpng16' of git://github.com/jbowler/libpng into libpng16 2016-09-01 17:11:57 -05:00
John Bowler
597b1a1b5e Merge branch 'libpng16' of ../../libpng into libpng16 2016-09-01 13:27:58 -07:00
John Bowler
f0b453bc3e [libpng16] pngfix zero-length IDAT fix 
When an input file contains a zero length IDAT and pngfix is not applying the
IDAT rechunking (--max) option pngfix will go into a loop writing the zero
length IDAT for ever.

This is a fairly minor issue for interactive use; zero length IDAT is very rare,
the problem is obvious (pngfix hangs) and the fix (use --max, or --max=4096
etc), while not obvious, is easy.

For non-interactive use, e.g. trying to automatically repair a PNG that cannot
be read by libpng, there are security consequences:

1) pngfix hangs.  This may permit a DoS attack.
2) When the --out option is used pngfix will just keep writing.  This is a very
likely DoS scenario.

Signed-off-by: John Bowler <jbowler@acm.org>
 2016-09-01 07:22:40 -07:00
Glenn Randers-Pehrson
c9d7b865b6 [libpng16] Bump version to 1.6.26beta01 2016-08-31 23:19:25 -05:00
Glenn Randers-Pehrson
e3a6631123 [libpng16] Imported from libpng-1.6.25.tar 2016-08-31 22:30:47 -05:00
Glenn Randers-Pehrson
434aecf327 [libpng16] Bump version to 1.6.25rc06 2016-08-30 11:21:11 -05:00
Glenn Randers-Pehrson
abd88841ef [libpng16] Imported from libpng-1.6.25rc05.tar 2016-08-30 11:15:49 -05:00
Glenn Randers-Pehrson
42e5441888 [libpng16] Bump version to 1.6.25rc05 2016-08-30 10:46:51 -05:00
Glenn Randers-Pehrson
01b6ca34b7 [libpng16] Imported from libpng-1.6.25rc04.tar 2016-08-30 10:46:43 -05:00
Glenn Randers-Pehrson
4ade4e8a0d [libpng16] Updated CHANGES and ANNOUNCE 2016-08-30 04:26:29 -05:00
Mandar Sahastrabuddhe
d1f14c829a Added MIPS MSA optimization for following functions: 
1. png_read_filter_row_sub4_msa
    2. png_read_filter_row_avg4_msa
    3. png_read_filter_row_paeth4_msa
    4. png_read_filter_row_sub3_msa
    5. png_read_filter_row_avg3_msa
    6. png_read_filter_row_paeth3_msa

Signed-off-by: Mandar Sahastrabuddhe <Mandar.Sahastrabuddhe@imgtec.com>
 2016-08-30 13:51:25 +05:30
Mandar Sahastrabuddhe
b43133b361 Merge pull request #1 from glennrp/libpng16 
Update from original
 2016-08-30 11:13:12 +05:30
Glenn Randers-Pehrson
2e2330bf25 [libpng16] Bump version to 1.6.25rc04 2016-08-29 16:15:28 -05:00
Glenn Randers-Pehrson
0a2d496d58 [libpng16] Imported from libpng-1.6.25rc03.tar 2016-08-29 16:10:33 -05:00
Glenn Randers-Pehrson
000f07bfbe [libpng16] Bump version to 1.6.25rc03 2016-08-29 10:57:26 -05:00
Glenn Randers-Pehrson
2e7c3a6e70 [libpng16] Imported from libpng-1.6.25rc02.tar 2016-08-29 10:45:13 -05:00
Glenn Randers-Pehrson
05a4db1fcd [libpng16] Update CHANGES, ANNOUNCE with entry about MIPS support 2016-08-29 09:13:09 -05:00
Mandar Sahastrabuddhe
ee5e39835c Added build support for MIPS MSA 
Also added one msa optimized function: png_read_filter_row_up_msa

Signed-off-by: Mandar Sahastrabuddhe <Mandar.Sahastrabuddhe@imgtec.com>
 2016-08-29 19:07:25 +05:30
Glenn Randers-Pehrson
143434ac78 [libpng16] Bump version to 1.6.25beta03 2016-08-18 12:23:08 -05:00
Glenn Randers-Pehrson
4dc4b2efac [libpng16] Imported from libpng-1.6.25beta02.tar 2016-08-18 12:17:31 -05:00
Glenn Randers-Pehrson
e175eb1ffb [libpng16] Further trivial editing of whitespace in INSTALL 2016-08-18 12:15:53 -05:00
Glenn Randers-Pehrson
4be85e1b37 [libpng16] Rebased contrib/intel/intel_sse.patch 2016-08-17 06:52:07 -05:00
Glenn Randers-Pehrson
9cab7a24fd [libpng16] Minor editing of INSTALL, (whitespace, added copyright line) 2016-08-17 06:39:26 -05:00
Glenn Randers-Pehrson
39df0ced18 [libpng16] Don't install pngcp; it conflicts with pngcp in the pngtools package. 
Moved it from bin_PROGRAMS to check_PROGRAMS in Makefile.am so it will be
built but not installed.
 2016-08-13 21:23:42 -05:00
Glenn Randers-Pehrson
2705f55221 [libpng16] Bump version to 1.6.25beta02 2016-08-12 07:05:46 -05:00
Glenn Randers-Pehrson
4679be7c2b [libpng16] Imported from libpng-1.6.25beta01.tar 2016-08-12 07:00:44 -05:00