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Author SHA1 Message Date
Glenn Randers-Pehrson
35a5a6c16d [libpng16] Imported from libpng-1.6.21beta03.tar 2015-12-19 10:48:12 -06:00
Glenn Randers-Pehrson
42b438b7dc [libpng16] Update CHANGES and ANNOUNCE 2015-12-17 20:51:13 -06:00
John Bowler
18765d0032 Fix undefined behavior in pngvalid.c 
Undefined because (png_byte) << shift is undefined if it changes the signed bit
(because png_byte is promoted to int).  The libpng exported functions
png_get_uint_32 and png_get_uint_16 handle this.

Bug reported by David Drysdale as a result of reports from UBSAN in clang 3.8.

This changes pngvalid to use BE random numbers; this used to produce errors but
these should not be fixed as a result of the previous changes.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-17 12:53:08 -08:00
Glenn Randers-Pehrson
4aa590288b [libpng16] Updated CHANGES and ANNOUNCE 2015-12-15 12:55:56 -06:00
Glenn Randers-Pehrson
315b39c73a Merge branch 'libpng16' of git://github.com/jbowler/libpng-1 into libpng16 2015-12-15 12:28:33 -06:00
John Bowler
2225ca0a54 pngvalid with 'limit' checks disabled in RC+ 
This widens the 'limit' check on the internally calculated error limits in the
'DIGITIZE' case (the code used prior to 1.7 for rgb_to_gray error checks) and it
changes the check to only operate in non-release builds (base build type not RC
or RELEASE.)

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-15 08:28:47 -08:00
Glenn Randers-Pehrson
ad29c03711 [libpng16] Bump version to 1.6.21beta03 2015-12-13 23:24:36 -06:00
Glenn Randers-Pehrson
0a4967ce0c [libpng16] Imported from libpng-1.6.21beta02.tar 2015-12-13 23:23:41 -06:00
Glenn Randers-Pehrson
b3d3a5ed6a [libpng16] Imported from libpng-1.6.21beta02.tar 2015-12-13 22:44:31 -06:00
Glenn Randers-Pehrson
4d8de33979 [libpng16] Update copyright uears in source files. 2015-12-13 22:41:17 -06:00
Glenn Randers-Pehrson
32629bb522 [libpng16] Update CHANGES and ANNOUNCE 2015-12-13 20:35:15 -06:00
Glenn Randers-Pehrson
0bc972fbc2 [libpng16] Fix typo in "last-changed" date. 2015-12-13 20:19:36 -06:00
John Bowler
6cc84b3c44 Fix rgb_to_gray graylo==0 errors, build issues 
Fixes to pngvalid for various reduced build configurations (eliminate unused
statics) and a fix for the case in rgb_to_gray when the digitize option reduces
graylo to 0, producing a large error.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-13 18:00:41 -08:00
John Bowler
c5e81c51d9 Remove LE/BE dependencies in pngvalid 
This 'fixes' the current problem in the BE tests by not testing it, making the
BE code the same as the LE version.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-13 17:15:02 -08:00
John Bowler
cbe5d34f6f Backport pngvalid.c from libpng17 
One fix is required for libpng16 LE, more for libpng16 BE

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-12-13 17:07:36 -08:00
Glenn Randers-Pehrson
975cbbb029 [libpng16] Moved png_check_keyword() from pngwutil.c to pngset.c 2015-12-13 15:04:18 -06:00
Glenn Randers-Pehrson
f3da771890 [libpng16] Bump version to 1.6.21beta02 2015-12-11 19:21:01 -06:00
Glenn Randers-Pehrson
2edfd187f2 [libpng16] Imported from libpng-1.6.21beta01.tar 2015-12-11 16:39:54 -06:00
John Bowler
2c8a90ef52 [libpng16] Changed "( ... )" to " ... " in tests/pngstest (John Bowler) 2015-12-09 13:16:28 -06:00
Glenn Randers-Pehrson
0de0101fdd [libpng16] Bump version to 1.6.21beta01 2015-12-08 22:19:15 -06:00
Glenn Randers-Pehrson
1dbfb07c08 [libpng16] Fixed a syntax error in tests/pngstest that some shells other than 
bash could not parse (Bug report by Nelson Beebe).
 2015-12-08 22:18:01 -06:00
Glenn Randers-Pehrson
5b6a6f914b [libpng16] Imported from libpng-1.6.20.tar 2015-12-02 22:30:37 -06:00
Glenn Randers-Pehrson
4fa5f90346 [libpng16] Imported from libpng-1.6.20rc02.tar 2015-11-29 16:46:56 -06:00
Glenn Randers-Pehrson
ebeca5bd9b [libng16] Update CHANGES 2015-11-29 16:46:04 -06:00
Glenn Randers-Pehrson
9dcf45c65c Merge branch 'libpng16' of git://github.com/jbowler/libpng-1 into libpng16 2015-11-29 16:20:54 -06:00
Glenn Randers-Pehrson
030e12ec39 [libpng16] Bump version to libpng-1.6.20rc02.tar 2015-11-29 16:10:46 -06:00
John Bowler
12bebfe0f9 Merge branch 'libpng16' of ../../libpng into libpng16 2015-11-28 00:08:20 -08:00
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
e7092bc59c [libpng16] Imported from libpng-1.6.20rc01.tar 2015-11-26 07:04:24 -06:00
Glenn Randers-Pehrson
87049cbf84 [libpng16] Update CHANGES, ANNOUNCE, minor editing of contrib/*/*.c 2015-11-25 15:55:01 -06:00
Glenn Randers-Pehrson
19ffb62903 [libpng16] Update CHANGES and ANNOUNCE about pngfix.c 2015-11-25 15:25:40 -06:00
John Bowler
f5778c8fbb Fix error in handling of bad zlib CMINFO field 
Signed-off-by: John Bowler <jbowler@acm.org>
 2015-11-25 12:59:42 -08:00
Glenn Randers-Pehrson
92ec30a3b1 [libpng16] Imported from libpng-1.6.20beta03.tar 2015-11-24 09:34:02 -06:00
John Bowler
8a08b6457a Test backport 
Tests backported from the multi-version compatible ones in libpng 1.7

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-11-23 20:15:51 -08:00
Glenn Randers-Pehrson
9a2065c5ee [libpng16] Imported from libpng-1.6.20beta02.tar 2015-11-23 09:29:44 -06:00
Glenn Randers-Pehrson
27f08ac11d [lbpng16] Revert 12 -> 12U change in pngrutil.c 2015-11-22 22:59:47 -06:00
Glenn Randers-Pehrson
0a9afc12de [libpng16] Fixed bug recently introduced in png_set_PLTE() that uses png_ptr 
not info_ptr.
 2015-11-22 20:53:02 -06:00
Glenn Randers-Pehrson
a1a2ae2a25 [libpng16] Bump version to 1.6.20beta02 2015-11-22 14:11:29 -06:00
Glenn Randers-Pehrson
26942c818e [libpng16] Imported from libpng-1.6.20beta01.tar 2015-11-22 14:08:52 -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
Viktor Szakats
4db6127658 pngread: avoid clang warning for unreachable code 
```
pngread.c:2841:10: warning: 'break' will never be executed [-Wunreachable-code-break]
         break;
         ^~~~~
```
 2015-11-19 19:54:01 +01:00
Glenn Randers-Pehrson
c4b2282fee [libpng16] Removed new redundant check for length < 12 in pngrutil.c 2015-11-17 16:36:06 -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
f1cdf4e1ca [libpng16] Bump version to 1.6.20beta01 2015-11-13 10:18:18 -06:00
Glenn Randers-Pehrson
415d26805a [libpng16] Imported from libpng-1.6.19.tar 2015-11-12 07:13:31 -06:00