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243 Commits

Author SHA1 Message Date
John Bowler
6297297708 Enable low-bit-depth gray tests in pngvalid 
Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-25 16:21:45 -07:00
John Bowler
fd42ef9b06 pngstest 1.6 error limit and warning revisions 
Remove the '--strict' in 1.6 because of the double-gamma-correction warning,
update pngstest-errors.h for the errors detected with the new contrib/testspngs
PNG test files.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-25 13:40:18 -07:00
John Bowler
a2671a7f49 test PNG files (contrib/testpngs) 
Back ported from libpng 1.7

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-25 13:10:13 -07:00
Glenn Randers-Pehrson
01a0e8062d [libpng16] Reverted addition of png_set_filler_16 and png_set_add_alpha_16() 
functions. They unnecessarily duplicate png_set_filler() and png_set_add_alpha()
which now work properly with 16-bit images.
 2015-09-24 22:39:53 -05:00
Glenn Randers-Pehrson
efe4e5d10d [libpng16] Reverted the fix of byte order in png_do_read_filler() with 16-bit 
input that was made in version 1.6.17beta01, to preserve legacy
behavior even though it was incorrect.  Instead, added new API
png_set_filter_16() and png_set_add_alpha_16() that set a flag to
make png_do_read_filter() interpret the filler bytes properly.
 2015-09-23 22:08:04 -05:00
John Bowler
d6eb4b71ac Updated pngstest-errors.h 
This update incorporates errors resulting from the more extensive image test
suite used in libpng 1.7

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-20 20:59:10 -07:00
Glenn Randers-Pehrson
4c9c43d4d4 [libpng16] Added license info to pngstest-errors.h and its generator. 2015-09-19 20:17:44 -05:00
Glenn Randers-Pehrson
0cc11b86ba [libpng16] Update ANNOUNCE and CHANGES with recent pngstest updates. 2015-09-19 19:57:59 -05:00
John Bowler
93b4568fc0 pngstest: make error limits version specific 
Splitting the machine generated error structs out to a file allows the values to
be updated without changing pngstest.c itself, since libpng 1.6 and 1.7 have
slightly different error limits this simplifies maintenance.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-19 16:34:30 -07:00
Glenn Randers-Pehrson
8bfcb4c7a7 [libpng16] Copied contrib/libtests/pngvalid.c from libpng17. 2015-09-18 14:24:49 -05:00
Glenn Randers-Pehrson
eb0bf4f468 [libpng16] Updated pngvalid.c with recent changes from libpng17 2015-09-18 13:09:57 -05:00
John Bowler
e8c554661c Back-port pngvalid corrections and enhancements 
This is a patch for libpng16.
It incorporates fixes to the low-bit-depth gray background handling from
libpng17 and turns one of the low-bit-depth gray cases that does work (and,
indeed, did work before) in libpng16

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-17 07:56:30 -07:00
John Bowler
c3e7e7d715 [libpng16] tests backported from libpng 1.7 
This updates libpng16 with all the test changes from libpng17,
including changes to pngvalid.c to ensure that the original,
distributed, version of contrib/visupng/cexcept.h can be used.

pngvalid contains the correction to the use of SAVE/STORE_
UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7.  More
tests contain the --strict option to detect warnings and the
pngvalid-standard test has been corrected so that it does not
turn on progresive-read (there is a separate test which does
that.)

Some signed/unsigned fixes have been made.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-15 15:38:52 -07:00
Glenn Randers-Pehrson
1e16e8829d [libpng16] Fix typo (extra "*/") in contrib/libtests/fakepng.c 2015-09-15 17:07:34 -05:00
Glenn Randers-Pehrson
4c02a5930a [libpng16] Imported from libpng-1.6.19beta02.tar 2015-08-19 12:58:14 -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
e6172809bd [libpng16] Imported from libpng-1.6.18.tar 2015-07-22 22:40:52 -05:00
Glenn Randers-Pehrson
c6f629ffdd [libpng16] Unlink temporary file immediately in pngstest (PNG_USE_MKSTEMP) 2015-06-11 16:28:54 -05:00
Glenn Randers-Pehrson
f6e7551f06 [libpng16] Eliminated the final two Coverity defects (insecure temporary file 
handling in contrib/libtests/pngstest.c; possible overflow of
unsigned char in contrib/tools/png-fix-itxt.c). To use the "secure"
file handling, define PNG_USE_MKSTEMP, otherwise "tmpfile()" will
continue to be used.
 2015-06-10 07:05:18 -05:00
Glenn Randers-Pehrson
867f2ec058 [libpng16] Imported from libpng-1.6.18beta07.tar 2015-06-06 17:03:14 -05:00
Glenn Randers-Pehrson
b26b51d154 [libpng16] Quieted Coverity issues in pngfix.c, png-fix-itxt.c, pngvalid.c, 
pngstest.c, and pngimage.c. Most seem harmless, but png-fix-itxt
would only work with iTXt chunks with length 255 or less.
 2015-06-03 16:07:01 -05:00
John Bowler
b780eba4e4 [libpng16] Fixed cexcept.h in which GCC 5 now reports that one of the auto 
variables in the Try macro needs to be volatile to prevent value
being lost over the setjmp.
 2015-06-03 14:46:34 -05:00
John Bowler
a21a5b22c1 [libpng16] Fixed rgb_to_gray checks and added tRNS checks to pngvalid.c 2015-03-30 21:38:31 -05:00
Glenn Randers-Pehrson
218a6fe9e5 [libpng16] Bump version to 1.6.18beta01 2015-03-26 08:55:25 -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
bc27b2f432 [libpng16] Imported from libpng-1.6.17rc02.tar 2015-03-09 09:20:46 -05:00
Glenn Randers-Pehrson
018b4fccb9 [libpng16] Happy New Year! Update copyright year. 2014-12-31 18:45:23 -06:00
John Bowler
b6788ccaff [libpng16] Implement previously untested libpng transforms in pngvalid.c 2014-12-29 16:31:58 -06:00
John Bowler
19ec55f40e [libpng16] Added testing of png_set_packing() to pngvalid.c 2014-12-27 19:10:04 -06:00
Glenn Randers-Pehrson
ecd074945c [libpng16] Bump version to 1.6.17beta01 2014-12-21 22:56:42 -06:00
Glenn Randers-Pehrson
88dd30b232 [libpng16] Imported from libpng-1.6.16.tar 2014-12-21 21:53:00 -06:00
Glenn Randers-Pehrson
f43b5e3709 [libpng16] Imported from libpng-1.6.16beta03.tar 2014-12-20 19:21:32 -06:00
John Bowler
a00ea0aeae [libpng16] Quiet a "comparison always true" warning in pngstest.c (John Bowler). 2014-12-16 19:18:06 -06:00
Glenn Randers-Pehrson
61ea3eacb0 [libpng16] Reverted use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING 
in the manual, example.c, pngtest.c, and applications in the contrib directory.
It was incorrect advice.
 2014-11-06 06:39:56 -06:00
John Bowler
03df189954 [libpng16] Fixed array size calculations to avoid warnings. At various points 
in the code the number of elements in an array is calculated using
sizeof.  This generates a compile time constant of type (size_t) which
is then typically assigned to an (unsigned int) or (int). Some versions
of GCC on 64-bit systems warn about the apparent narrowing, even though
the same compiler does apparently generate the correct, in-range,
numeric constant.  This adds appropriate, safe, casts to make the
warnings go away.
 2014-11-05 17:19:36 -06:00
John Bowler
6f2c50e7fc [libpng16] Free all allocated memory in pngimage. The file buffer cache was left 
allocated at the end of the program, harmless but it causes memory
leak reports from clang.
 2014-11-05 17:11:59 -06:00
Glenn Randers-Pehrson
f1b547a509 [libpng16] Use png_get_libpng_ver(NULL), not PNG_LIBPNG_VER_STRING 2014-11-04 23:33:46 -06:00
Glenn Randers-Pehrson
edb772fd6d [libpng16] Imported from libpng-1.6.14.tar 2014-10-22 19:32:52 -05:00
Glenn Randers-Pehrson
36b246a571 [libpng16] Imported from libpng-1.6.14beta04.tar 2014-09-27 10:28:57 -05:00
Glenn Randers-Pehrson
af557d98e1 [libpng16] Imported from libpng-1.6.14beta03.tar 2014-09-19 07:58:00 -05:00
Glenn Randers-Pehrson
551019baf6 [libpng16] Revert recent pngvalid.c changes and define FE_DIVBYZERO, etc., 
if not already defined.
 2014-09-18 16:41:40 -05:00
Glenn Randers-Pehrson
baa95a2d49 [libpng16] Do not include <fenv.h> when FLOATING_ARITHMETIC is not supported. 2014-09-18 09:23:45 -05:00
Glenn Randers-Pehrson
6b570f11e1 [libpng16] Imported from libpng-1.6.11beta02.tar 2014-03-25 17:10:44 -05:00
Glenn Randers-Pehrson
d74d82137b [libpng16] Cosmetic revision of previous change 2014-03-17 15:35:28 -05:00
Glenn Randers-Pehrson
a518abd582 [libpng16] Removed #if/#else/#endif from inside two pow() calls in pngvalid.c 
because they were handled improperly by Portland Group's PGI-14.1 - PGI-14.3
when using its "__builtin_pow()" function.
 2014-03-17 15:29:25 -05:00
Glenn Randers-Pehrson
4df37bfa4f [libpng16] Imported from libpng-1.6.10.tar 2014-03-06 12:49:17 -06:00
John Bowler
37b7299b60 [libpng16] Deleted a now-redundant #define png_error from pngvalid.c 2014-02-16 22:55:41 -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
8a227ff25a [libpng16] Bump version to 1.6.10beta01 2014-02-05 23:51:39 -06:00