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484 Commits

Author SHA1 Message Date
Glenn Randers-Pehrson
4aa590288b [libpng16] Updated CHANGES and ANNOUNCE 2015-12-15 12:55:56 -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
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
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
Glenn Randers-Pehrson
030e12ec39 [libpng16] Bump version to libpng-1.6.20rc02.tar 2015-11-29 16:10:46 -06:00
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
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
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
Glenn Randers-Pehrson
6ca8ee1518 [libpng16] Imported from libpng-1.6.19beta04.tar 2015-10-14 22:25:21 -05:00
John Bowler
2163c930b0 pow and sbit fixes backported to pngvalid from 1.7 
Signed-off-by: John Bowler <jbowler@acm.org>
 2015-10-03 11:14:43 -07:00
John Bowler
04402a9126 Fix (work round) rgb-to-gray issues in libpng 1.6 
The previous attempts to ignore the errors in the code aren't quite enough to
deal with the 'channel selection' encoding added to libpng 1.7; abort.
pngvalid.c is changed to drop this encoding in prior versions.

Signed-off-by: John Bowler <jbowler@acm.org>
 2015-09-26 17:41:02 -07:00
John Bowler
956f295d48 Merge remote-tracking branch 'local/libpng16' into libpng16 2015-09-25 16:58:43 -07:00
Glenn Randers-Pehrson
61257bc2de [libpng16] Update CHANGES and ANNOUNCE 2015-09-25 18:25:08 -05:00
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
67806d44c1 [libpng16] Imported from libpng-1.6.19beta01.tar 2015-07-30 11:18:15 -05:00
Glenn Randers-Pehrson
8510247b5f [libpng16] Fixed uninitialized variable in contrib/gregbook/rpng2-x.c and 
fixed potential leak of png_pixels in contrib/pngminus/pnm2png.c
 2015-07-30 11:16:29 -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
a390897ba4 [libpng16] Fixed a new signed-unsigned comparison in pngrtran.c (Max Stepin). 
Removed some useless typecasts from contrib/tools/png-fix-itxt.c
 2015-07-01 14:06:39 -05:00
Glenn Randers-Pehrson
9d4ea3014b [libpng16] Imported from libpng-1.6.18beta08.tar 2015-06-30 10:54:44 -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
Glenn Randers-Pehrson
f50b593ac0 [libpng16] Update revision information in cexcept.h as required by the license. 2015-06-03 15:41:46 -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
Glenn Randers-Pehrson
b66de48b3b [libpng16] Changed png_voidcast(), etc., to voidcast(), etc., in 
contrib/tools/pngfix.c to avoid confusion with the libpng private macros.
 2015-05-30 22:57:33 -05:00
Glenn Randers-Pehrson
d8d18fbb02 [libpng16] Imported from libpng-1.6.18beta03.tar 2015-05-06 16:39:31 -05:00
John Bowler
74428df2fd [libpng16] Improved DIV65535 algorithm in simpleover.c. By experiment, 
(x + (x>>16) + 32769) works as well as the previous form and avoids one shift.
 2015-05-06 11:41:17 -05:00
Glenn Randers-Pehrson
d6b1375bf5 [libpng16] Trivial editing of comments in contrib/examples/simpleover.c 2015-05-04 20:25:31 -05:00
John Bowler
0f12df19a1 [libpng16] Added PNG generation tool, fixed unitialized pointer in 
simpleover. Also added a comment to png.h pointing out that the pointer must
 be set to NULL!  (simpleover crashes with any slightly complex command lines
 without this fix.)
 2015-05-04 19:58:41 -05:00
John Bowler
cde3078963 [libpng16] Added contrib/examples/simpleover.c, to demonstrate how to handle 
alpha compositing of multiple images, using the "simplified API"
 2015-05-02 19:53:40 -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
494e75ac83 [libpng16] Fixed some typos in the pngfix usage message. 2015-02-26 10:39:13 -06:00
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
John Bowler
6a6eb354ff [libpng16] Removed user limits from pngfix. Also pass NULL pointers to 
png_read_row to skip the unnecessary row de-interlace stuff.
 2014-12-24 18:54:08 -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
86a7eef997 [libpng16] Imported from libpng-1.6.16beta01.tar 2014-12-14 12:38:35 -06:00
Glenn Randers-Pehrson
2d24cbdd98 [libpng16] Bump version to 1.6.16beta01 2014-11-21 08:25:32 -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
fa49aae286 [libpng16] Imported from libpng-1.6.15beta08.tar 2014-11-08 09:08:03 -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
996046aed5 [libpng16] Use nanosleep() instead of usleep() in contrib/gregbook/rpng2-x.c 
because usleep() is deprecated.
 2014-09-14 16:34:09 -05:00
Glenn Randers-Pehrson
e4489f1db2 [libpng16] Only define usleep() in gregbook/rpng2-x.c if not already defined. 2014-09-14 15:06:00 -05:00
Glenn Randers-Pehrson
0df3198719 [libpng16] Imported from libpng-1.6.14beta01.tar 2014-09-14 14:23:32 -05:00
Glenn Randers-Pehrson
3a05d2df0f [libpng16] Add "#include <setjmp.h>" to contrib/tools/pngfix.c (John Bowler) 2014-09-11 07:39:24 -05:00
Glenn Randers-Pehrson
de5e34f3ce [libpng16] Add #include <setjmp.h> to contrib/tools/pngfix.c to allow "make" to 
complete without setjmp support (bug report by Claudio Fontana)
 2014-09-10 21:34:34 -05:00
Glenn Randers-Pehrson
0a3c788b51 [libpng16] Don't build contrib/tools/pngfix.c without setjmp support. 2014-09-10 17:27:53 -05:00
Glenn Randers-Pehrson
91319c67d5 [libpng16] Imported from libpng-1.6.13beta01.tar 2014-07-04 12:13:59 -05:00
Glenn Randers-Pehrson
33ebeec0b5 [libpng16] Split a long output string in contrib/gregbook/rpng2-x.c. 2014-06-13 15:34:36 -05:00
Glenn Randers-Pehrson
225af8f363 [libpng16] Removed "PNG_UNUSED()" inadvertently left in contrib/gregbook 
/readpng2.c from the previous update.
 2014-06-13 12:55:43 -05:00
Glenn Randers-Pehrson
151eb95305 [libpng16] Added "(void) png_ptr;" where needed in contrib/gregbook to quiet 
compiler complaints about unused pointers.
 2014-06-13 12:04:54 -05:00
Glenn Randers-Pehrson
f36a94207c [libpng16] Quieted -Wsign-compare and -Wclobber compiler warnings in 
contrib/pngminus/*.c
 2014-06-13 11:06:33 -05:00
Glenn Randers-Pehrson
79b7e4e621 [libpng16] Changed file permissions of contrib/tools/intgamma.sh from 
0644 to 0755 (Cosmin).
 2014-06-07 14:47:02 -05:00
Glenn Randers-Pehrson
ee6050ecb4 [libpng16] Imported from libpng-1.6.11rc02.tar 2014-06-03 22:02:34 -05:00
Glenn Randers-Pehrson
7a0ca967b4 [libpng16] Bump version to 1.6.11beta04 2014-04-06 14:18:13 -05:00
Glenn Randers-Pehrson
478062d9b5 [libpng16] Imported from libpng-1.6.11beta03.tar 2014-04-06 14:17:58 -05:00
Glenn Randers-Pehrson
86b8016ee9 [libpng16] Fix some permissions 2014-04-06 12:01:51 -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
Glenn Randers-Pehrson
079a724833 [libpng16] Fixed some nits in contrib/arm-neon/README and comments in 
contrib/examples/*.c
 2014-02-23 10:59:27 -06:00
Glenn Randers-Pehrson
f5df058bee [libpng16] Use a user warning handler in contrib/gregbook/readpng2.c 
instead of the default.
 2014-02-22 07:15:48 -06:00
John Bowler
37b7299b60 [libpng16] Deleted a now-redundant #define png_error from pngvalid.c 2014-02-16 22:55:41 -06:00
John Bowler
0b61d10ad4 [libpng16] Fixed /proc/cpuinfo ARM NEON __linux__ parsing 2014-02-16 14:07:49 -06:00
John Bowler
dba54b8888 [libpng16] Moved OS dependent code from arm/arm_init.c, to allow the included 
implementation of the ARM NEON discovery function to be set at
build-time and provide sample implementations from the current code in the
contrib/arm-neon subdirectory. The __linux__ code has also been changed to
compile and link on Android by using /proc/cpuinfo, and the old linux code
is in contrib/arm-neon/linux-auxv.c.  The new code avoids POSIX and Linux
dependencies apart from opening /proc/cpuinfo and is C90 compliant.
 2014-02-16 14:00:06 -06:00
Glenn Randers-Pehrson
38ef9c9779 [libpng16] Removed unneeded "#define PNG_NO_WARNINGS" from contrib/pngminim/* 2014-02-16 13:56:10 -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
Glenn Randers-Pehrson
3e753eb8b2 [libpng16] Imported from libpng-1.6.9.tar 2014-02-05 22:33:56 -06:00
Glenn Randers-Pehrson
4250328102 [libpng16] Updated scripts/makefile.* to use CPPFLAGS (Cosmin) 2014-01-12 10:49:40 -06:00
Glenn Randers-Pehrson
95a197397f [libpng16] Updated copyright year in recently-changed files. 2013-12-31 21:10:13 -06:00
John Bowler
1fc0171278 [libpng16] Revised pngvalid.c to support libpng 1.5, which does not support the 
PNG_MAXIMUM_INFLATE_WINDOW option, so #define it out when appropriate in
pngvalid.c
 2013-12-29 15:09:28 -06:00
John Bowler
a8472470a4 [libpng16] Merged libpng-1.7.0 changes to make no-interlace configurations work 
with test programs.
 2013-12-29 10:50:51 -06:00
Glenn Randers-Pehrson
e51ba2eff4 [libpng16] Removed #error macro from contrib/tools/pngfix.c (Thomas Klausner). 2013-12-27 20:22:24 -06:00
John Bowler
a80e864faa [libpng16] Merged with pngvalid.c from libpng-1.7 changes to create a single 
pngvalid.c
 2013-12-27 08:43:55 -06:00
John Bowler
1d3c990425 [libpng16] Added checks for libpng 1.5 to pngvalid.c. This supports the use of 
this version of pngvalid in libpng 1.5
 2013-12-27 08:14:06 -06:00
Glenn Randers-Pehrson
be3977de2c [libpng16] Imported from libpng-1.6.8.tar 2013-12-19 09:11:01 -06:00
John Bowler
81dfd007b2 [libpng16] Tidied up pngfix inits and fixed non-write pngtest. 2013-12-01 15:20:15 -06:00
Glenn Randers-Pehrson
1c6e5f8caa [libpng16] Imported from libpng-1.6.8beta01.tar 2013-11-23 18:41:43 -06:00
Glenn Randers-Pehrson
27ae9362d8 [libpng16] Added another "assert()" in pngfix.c 2013-11-23 12:42:43 -06:00
Glenn Randers-Pehrson
88507b4ef9 [libpng16] Avoid a clang scanner warning in pngfix.c 2013-11-23 12:26:00 -06:00
John Bowler
0f6303301f [libpng16] Fixed pngvalid 'fail' function declaration on the Intel C Compiler. 
This reverts to the previous 'static' implementation and works round
the 'unused static function' warning by using PNG_UNUSED().
 2013-11-22 18:49:58 -06:00
John Bowler
aaf1bb1ae1 [libpng16] Updated "last changed" dates 2013-11-22 15:40:52 -06:00
Glenn Randers-Pehrson
b5596712fc [libpng16] Update contrib/tools/pngfix.c 2013-11-22 15:26:22 -06:00
Glenn Randers-Pehrson
503a49458b [libpng16] Enabled WRITE_INVERT and WRITE_PACK in contrib/pngminim/encoder. 2013-11-22 15:16:04 -06:00
Glenn Randers-Pehrson
c912050a7b [libpng16] Fixed 'minimal' builds. Various obviously useful minimal 
configurations don't build because of missing contrib/libtests test programs
and overly complex dependencies in scripts/pnglibconf.dfa. This change adds
contrib/conftest/*.dfa files that can be used in automatic build
scripts to ensure that these configurations continue to build.
 2013-11-22 14:58:04 -06:00
Glenn Randers-Pehrson
a7f0bcb3a6 [libpng16] Added "-Wall" to CFLAGS in contrib/pngminim/*/makefile 2013-11-18 17:07:26 -06:00
John Bowler
08b0620202 [libpng16] Fixed #include in filter_neon_intrinsics.c and ctype macros. The 
ctype char checking macros take an unsigned char argument, not a signed char.
 2013-11-04 13:44:37 -06:00
John Bowler
9e9977e153 [libpng16] Revised pngvalid to generate size images with as many filters as 
it can manage, limited by the number of rows.
 2013-10-17 08:23:13 -05:00
John Bowler
236e105170 [libpng16] Simplified error message code in pngunknown. The simplification has 
the useful side effect of avoiding a bogus warning generated by the latest
version of the Intel C compiler (it objects to
condition ? string-literal : string-literal).
 2013-10-04 20:28:33 -05:00
John Bowler
5b1df53a82 [libpng16] Cleaned up (char*) casts of zlib messages. The latest version of 
the Intel C compiler complains about casting a string literal as (char*), so
copied the treatment of z_const from the library code into pngfix.c
 2013-10-04 20:13:17 -05:00
John Bowler
cc93d89e43 [libpng16] Updated pngunknown.c 2013-09-30 13:07:58 -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
Glenn Randers-Pehrson
847e9efb66 [libpng16] Imported from libpng-1.6.3.tar 2013-07-17 19:13:23 -05:00
John Bowler
b4ec1f8451 [libpng16] Unified pngfix.c source with libpng17. 2013-07-02 23:47:57 -05:00
John Bowler
f5f1206778 [libpng16] Fixed undefined behavior in contrib/tools/pngfix.c and added new 
strip option. pngfix relied on undefined behavior and even a simple change from
gcc to g++ caused it to fail.  The new strip option 'unsafe' has been
implemented and is the default if --max is given.  Option names have
been clarified, with --strip=transform now stripping the bKGD chunk,
which was stripped previously with --strip=unused.
Added all documented chunk types to pngpriv.h
 2013-07-02 23:18:49 -05:00
Glenn Randers-Pehrson
573c9d434f [libpng16] Change "png-fix-too-far-back" to "pngfix" inside pngfix.c 
for error messages, etc.
 2013-06-27 21:21:26 -05:00
Glenn Randers-Pehrson
d992e05da8 [libpng16] Renamed contrib/tools/png-fix-too-far-back.c to pngfix.c 2013-06-27 13:39:20 -05:00
John Bowler
870beb5279 [libng16] Revised contrib/tools/png-fix-too-far-back.c to check all compressed 
chunks known to libpng.
 2013-06-27 11:49:26 -05:00
John Bowler
88610994da [libpng16] Fix compiler warning in png-fix-itxt.c 2013-06-05 12:15:25 -05:00
Glenn Randers-Pehrson
afd6cecb76 [libpng16] Imported from libpng-1.6.3beta06.tar 2013-05-12 18:36:09 -05:00
Glenn Randers-Pehrson
61dbc4c608 [libpng16] Revised contrib/pngminim/*/makefile to generate pnglibconf.h 
with the right zlib headers.
 2013-05-09 22:01:06 -05:00
Glenn Randers-Pehrson
7fc85a3f46 [libng16] Fixed typo in png-fix-too-far-back "usage" output 2013-05-09 08:49:42 -05:00
Glenn Randers-Pehrson
4ea93e69bc [libpng16] Renamed pnginflate to png-fix-too-far-back in contrib/tools. 2013-05-08 21:57:00 -05:00
Glenn Randers-Pehrson
ff141eb21e [libpng16] Renamed contrib/tools/fixitxt to contrib/tools/png-fix-itxt. 
Added information in the documentation about problems with and fixes for
the bad CRC and bad iTXt chunk situations.
 2013-05-08 19:46:10 -05:00
John Bowler
122bec17f2 [libpng16]Check ZLIB_VERNUM for mismatches, enclose #error in quotes 2013-05-08 14:35:21 -05:00
John Bowler
9afb90f885 [libpng16] Attempt to detect configuration issues with pngdeflate, 
which requires both the correct libpng and the correct zlib to function
correctly.
 2013-05-08 14:21:46 -05:00