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681 Commits

Author SHA1 Message Date
Glenn Randers-Pehrson
d65a92b951 [libpng16] Revert ADLER32 error handling in pngrutil.c and pngpread.c. 2016-11-08 16:04:08 -06:00
Glenn Randers-Pehrson
2accfbd6f3 [libpng16] Restrict the new ADLER32-skipping to IDAT chunks. It broke iCCP 
chunk handling.
 2016-10-28 15:50:46 -05:00
Glenn Randers-Pehrson
858cb585d7 [libpng16] Bump version to 1.6.27beta01 2016-10-28 15:25:26 -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
a1312f7b19 [libpng16] Cosmetic change "ptr != 0" to "ptr != NULL" in png.c and pngrutil.c 2016-10-16 14:34:40 -05:00
Glenn Randers-Pehrson
a106899acd [libpng16] Use zlib-1.2.8.1 inflateValidate() instead of inflateReset2() to 
avoid ADLER32 evaluation.
 2016-10-07 13:33:50 -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
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
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
e3a6631123 [libpng16] Imported from libpng-1.6.25.tar 2016-08-31 22:30:47 -05:00
Glenn Randers-Pehrson
935676cdad [libpng16] Revert use of png_malloc_array in iCCP chunk reader 2016-08-12 06:58:15 -05:00
Glenn Randers-Pehrson
8ff2ed2fe1 [libng16] Conditionally compile png_inflate(). It's not needed for iCCP 
chunk reading.
 2016-08-11 20:13:33 -05:00
Glenn Randers-Pehrson
19fefd3a4b [libpng16] Return NULL from png_malloc_array() with a warning instead of calling 
png_error() on failure.  Reject oversized iCCP profile immediately.
 2016-08-10 12:09:22 -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
8d091a640b [libpng16] Conditionally compile png_decompress_chunk(). 2016-08-01 17:50:42 -05:00
Glenn Randers-Pehrson
ee079481c9 [libpng16] Imported from libpng-1.6.24beta06.tar 2016-07-19 17:00:00 -05:00
Glenn Randers-Pehrson
639b48625f [libpng16] Eliminated unnecessary tests of boolean png_isaligned() vs 0. 2016-07-15 17:22:10 -05:00
Glenn Randers-Pehrson
dd70604cec [libpng16] Fixed more indentation 2016-07-15 11:20:46 -05:00
Glenn Randers-Pehrson
0fd9a249de [libpng16] Update "last changed" dates 2016-07-13 16:29:22 -05:00
Glenn Randers-Pehrson
192e92d681 [libpng16] Fixed some indentation to comply with our coding style. 2016-07-13 14:43:42 -05:00
Glenn Randers-Pehrson
80495124b2 [libpng16] Don't call png_icc_set_sRGB() when it's not compiled. 2016-07-03 10:28:54 -05:00
Glenn Randers-Pehrson
66db757dd4 [libpng16] Happy 2016! Updated copyright year 2016-01-02 13:40:27 -06:00
Glenn Randers-Pehrson
4d8de33979 [libpng16] Update copyright uears in source files. 2015-12-13 22:41:17 -06:00
Glenn Randers-Pehrson
0de0101fdd [libpng16] Bump version to 1.6.21beta01 2015-12-08 22:19:15 -06:00
Glenn Randers-Pehrson
5b6a6f914b [libpng16] Imported from libpng-1.6.20.tar 2015-12-02 22:30:37 -06:00
John Bowler
28a1cdfc2e Fix inconsistent handling of invalid zlib data 
In libpng 1.6 zlib initialization was changed to use the window size in the zlib
stream, not a fixed value.  This causes some invalid images, ones where CINFO is
too large, to display 'correctly' if the rest of the data is valid.  This
provides a work-round for zlib versions where the error arises (ones that
support the API change to use the window size in the stream).

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-11-27 23:57:39 -08:00
Glenn Randers-Pehrson
27f08ac11d [lbpng16] Revert 12 -> 12U change in pngrutil.c 2015-11-22 22:59:47 -06:00
Glenn Randers-Pehrson
8ba160ba94 [libpng16] Use unsigned constants in buffer length comparisons 2015-11-21 14:31:59 -06:00
John Bowler
1ceedd0bf6 [libpng16] Another whack at png_handle_sPLT() pointer calculation. 2015-11-19 20:45:08 -06:00
Glenn Randers-Pehrson
001513c9ca [libpng16] Removed new redundant check for libpng < 12 in pngrutil.c 2015-11-17 16:23:51 -06:00
Glenn Randers-Pehrson
162f9f87f9 [libpng16] Remove newly-added useless typecasts. 2015-11-16 09:23:25 -06:00
Glenn Randers-Pehrson
9965f63a44 [libpng16] Changed size_t to png_uint_32 in new buffer checks (John Bowler) 2015-11-15 15:27:22 -06:00
Glenn Randers-Pehrson
070a0eb58f [libpng16] Revised recent pngrutil.c patch as suggested by pascal 2015-11-14 16:45:26 -06:00
Glenn Randers-Pehrson
0b4e7deab1 [libpng16] Avoid potential pointer overflow in png_handle_sPLT() and 
png_handle_pCAL() (Bug report by John Regehr).
 2015-11-13 11:05:27 -06:00
Glenn Randers-Pehrson
415d26805a [libpng16] Imported from libpng-1.6.19.tar 2015-11-12 07:13:31 -06:00
Glenn Randers-Pehrson
83f4c735c8 [libpng16] Clean up coding style in png_handle_PLTE() 2015-11-05 11:18:44 -06:00
Glenn Randers-Pehrson
9f2ad4928e [libpng16] Fixed new bug with CRC error after reading an over-length palette. 2015-11-04 23:47:42 -06:00
Glenn Randers-Pehrson
1bef8e9799 [libpng16] Silently truncate over-length PLTE chunk while reading. 2015-10-30 11:34:37 -05:00
Glenn Randers-Pehrson
a901eb3ce6 [libpng16] Prevent reading over-length PLTE chunk (Cosmin Truta). 2015-10-30 07:57:49 -05:00
John Bowler
2d62f7406f [libpng16] Fixed the recently reported 1's complement security issue by 
replacing the value that is illegal in the PNG spec, in both signed and
unsigned values, with 0. Illegal unsigned values (anything greater than or equal
to  0x80000000) can still pass through, but since these are not illegal
in ANSI-C (unlike 0x80000000 in the signed case) the checking that
occurs later can catch them (John Bowler).
 2015-08-19 12:56:48 -05:00
Glenn Randers-Pehrson
a8242fe6fb [libng16] Reverted recent mistaken change of 0xnnnn to 0xnnnnUL 2015-08-17 20:46:27 -05:00
Glenn Randers-Pehrson
15e69748f1 [libpng16] Removed new unnecessary typecast in pngrutil.c 2015-08-17 12:52:56 -05:00
Glenn Randers-Pehrson
268c7bf68b [libpng16] Use unsigned hex constants in "reciprocal" computations 2015-08-17 12:40:19 -05:00
Glenn Randers-Pehrson
d8b93c29a7 [libpng16] Appended more "UL" to hex constants. 2015-08-17 10:56:17 -05:00
Glenn Randers-Pehrson
b9ba8d6a57 [libpng16] Mention in manual that 16-bit platform support has been dropped. 2015-08-16 23:32:04 -05:00
Glenn Randers-Pehrson
8b83ff3704 [libpng16] Change "n bit" to "n-bit" in comments. 2015-08-13 20:57:18 -05:00
Glenn Randers-Pehrson
e485a09e0e [libpng16] Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler 
(Bug report by Viktor Szaka'ts).  Several warnings remain and are
unavoidable, where we test for overflow.
 2015-07-29 07:29:17 -05:00
Glenn Randers-Pehrson
e6172809bd [libpng16] Imported from libpng-1.6.18.tar 2015-07-22 22:40:52 -05:00
Glenn Randers-Pehrson
f86720c6c0 [libpng16] Fix some indentation. 2015-06-11 22:00:14 -05:00
John Bowler
8ee821e69a [libpng16] PNG_RELEASE_BUILD replaces tests where the code depended on the build base 
type and can be defined on the command line, allowing testing in beta builds. Back
ported from libpng17.
 2015-05-06 20:03:14 -05:00
Glenn Randers-Pehrson
c861dc8923 [libpng16] Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler 
(Bug report by Viktor Szaka'ts).
 2015-04-01 12:06:01 -05:00
Glenn Randers-Pehrson
bd85b5713c [libpng16] Imported from libpng-1.6.18beta01.tar 2015-04-01 08:24:14 -05:00
Glenn Randers-Pehrson
d344589703 [libpng16] Removed PNG_SET_CHUNK_[CACHE|MALLOC]_LIMIT_SUPPORTED macros. They 
have been combined with PNG_SET_USER_LIMITS_SUPPORTED (resolves
bug report by Andrew Church).
 2015-03-27 08:58:32 -05:00
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
bb098218ca [libpng16] Fixed some spelling (occur* -> occurr*), Bug report by Lauri Nurmi 2015-03-07 12:59:48 -06:00
Glenn Randers-Pehrson
7011a8cec3 [libpng16] Added "& 0xff" to things being typecast to "png_byte". 2015-02-27 18:53:44 -06:00
Sergey Kosarevsky
9a3de48b48 [libpng16] Avoid runtime checks when converting integer to png_byte with 
Visual Studio (Sergey Kosarevsky)
 2015-02-27 18:47:43 -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
bd76965879 [libpng16] Added #ifndef __COVERITY__ where needed in png.c, pngrutil.c and 
pngset.c to avoid warnings about dead code.
 2015-01-27 06:53:56 -06:00
Glenn Randers-Pehrson
018b4fccb9 [libpng16] Happy New Year! Update copyright year. 2014-12-31 18:45:23 -06:00
John Bowler
dc294204b6 [libpng16] Fixed an overflow in png_combine_row with very wide interlaced 
images.
 2014-12-21 17:11:33 -06:00
Glenn Randers-Pehrson
06ee38423b [libpng16] Imported from libpng-1.6.16rc02.tar 2014-12-21 13:54:45 -06:00
Glenn Randers-Pehrson
6d8c88177a [libpng16] Imported from libpng-1.6.16rc01.tar 2014-12-21 09:18:15 -06:00
Glenn Randers-Pehrson
f43b5e3709 [libpng16] Imported from libpng-1.6.16beta03.tar 2014-12-20 19:21:32 -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
c6a8cb7d10 [libpng16] Added missing "ptr = NULL" after some instances of png_free(). 2014-10-29 08:27:34 -05:00
Glenn Randers-Pehrson
ebba0746bc [libpng16] Changed "if (!x)" to "if (x == 0)" and "if (x)" to "if (x !== 0)" 2014-10-25 12:22:39 -05:00
Glenn Randers-Pehrson
edb772fd6d [libpng16] Imported from libpng-1.6.14.tar 2014-10-22 19:32:52 -05:00
Glenn Randers-Pehrson
48e6fad71c [libpng16] Fixed incorrect handling of the iTXt compression flag 
in pngrutil.c (bug report by Shunsaku Hirata).  Bug was introduced
in libpng-1.6.0.
 2014-09-27 09:37:50 -05:00
Glenn Randers-Pehrson
664bd637b5 [libpng16] Fixed some indentation in pngrutil.c 2014-08-26 19:55:58 -05:00
Glenn Randers-Pehrson
3efbecab92 [libpng16] Imported from libpng-1.6.13beta02.tar 2014-07-21 17:21:21 -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
Glenn Randers-Pehrson
72855fb11e [libpng16] Made progressive reading of interlaced images consistent with the 
behavior of the sequential reader and consistent with the manual. The
row_callback now receives the proper pass number and unexpanded rows,
when png_combine_row is not used or not built, by moving some code
out of the PNG_READ_INTERLACING_SUPPORTED blocks.
 2014-04-13 21:27:25 -05:00
Glenn Randers-Pehrson
fa26eb1678 [libpng16] Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that 
interferes with "blocky" expansion of sub-8-bit interlaced PNG files.
 2014-04-06 09:06:37 -05:00
Glenn Randers-Pehrson
05670156f3 [libpng16] Use "if (value != 0)" instead of "if (value)" consistently. 2014-03-08 12:39:52 -06:00
Glenn Randers-Pehrson
71d23c4d6e [libpng16] Bump version to 1.6.11beta01 2014-03-06 21:09:24 -06:00
Glenn Randers-Pehrson
4df37bfa4f [libpng16] Imported from libpng-1.6.10.tar 2014-03-06 12:49:17 -06:00
Glenn Randers-Pehrson
b8f433417f [libpng16] Removed unreachable return statement after png_chunk_error() 
in pngrutil.c
 2014-02-27 12:12:54 -06:00
Glenn Randers-Pehrson
45625eceb4 [libpng16] Don't recognize known sRGB profiles as sRGB if they have been hacked, 
but don't reject them and don't issue a copyright violation warning.
Simplified code in pngrutil.c that decides whether to warn about an
incorrect ancillary PLTE chunk.
 2014-02-22 23:09:27 -06:00
Glenn Randers-Pehrson
eb657ae68f [libpng16] Added png_ptr->process_mode = PNG_READ_IDAT_MODE in 
png_push_read_chunk after recognizing the IDAT chunk, which avoids an
infinite loop while reading a datastream whose first IDAT chunk is of
zero-length.
 2014-02-22 21:59:40 -06:00
Glenn Randers-Pehrson
9c5a1baea5 [libpng16] Check for info_ptr == NULL early in png_read_end() so we don't need 
to run all the png_handle_*() and depend on them to return if info_ptr == NULL.
This improves the performance of png_read_end(png_ptr, NULL) and makes
it more robust against future programming errors.
 2014-02-17 09:12:52 -06:00
Glenn Randers-Pehrson
9eec159ab0 [libpng16] Imported from libpng-1.6.10beta01.tar 2014-02-09 13:00:23 -06:00
John Bowler
414d7b5f7d [libpng16] Backport recent changes from libpng-1.7.0beta30 and beta31. 2014-02-06 11:39:25 -06:00
Glenn Randers-Pehrson
be3977de2c [libpng16] Imported from libpng-1.6.8.tar 2013-12-19 09:11:01 -06:00
Glenn Randers-Pehrson
3f8a2ed600 [libpng16] Removed or marked PNG_UNUSED some harmless "dead assignments" 
reported by clang scan-build.
 2013-11-25 10:38:21 -06:00
John Bowler
aaf1bb1ae1 [libpng16] Updated "last changed" dates 2013-11-22 15:40:52 -06:00
Glenn Randers-Pehrson
113213416c [libpng16] Conditionally compile some unused functions reported by -Wall 
in pngminim.
 2013-11-18 20:12:24 -06:00
Glenn Randers-Pehrson
0ea69cdfa9 [libpng16] Imported from libpng-1.6.7.tar 2013-11-14 12:28:05 -06:00
John Bowler
0441ff62e7 [libpng16] Remove spurious "#ifdef PNG_sRGB_SUPPORTED" from pngrutil.c 2013-10-04 19:28:48 -05:00
Glenn Randers-Pehrson
b3721757a0 [libpng16] Catch up with some recent changes that did not get merged. 2013-09-30 13:56:44 -05:00
John Bowler
8f381901e3 [libpng16] Avoid up-cast warnings in pngvalid.c. On ARM the alignment 
requirements of png_modifier are greater than that of png_store and as a
consequence compilation of pngvalid.c results in a warning about increased
alignment requirements because of the bare cast to (png_modifier*). The code
is safe, because the pointer is known to point to a stack allocated
png_modifier, but this change avoids the warning.

  Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
    compiled without the CHECK option it defaulted to on, not off.

  Check user callback behavior in pngunknown.c. Previous versions compiled
    if SAVE_UNKNOWN was not available but did nothing since the callback
    was never implemented.

  Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
 2013-09-30 11:24:17 -05:00
John Bowler
15a80443de [libpng16] Allow HANDLE_AS_UNKNOWN to work when other options are configured 
off. Also fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff
which terminates the make options (as by default in recent versions of Gentoo).
 2013-09-21 10:06:32 -05:00