Glenn Randers-Pehrson
55fbff358a
[devel] Consistently use "n-bit", not "n bit" in comments.
2011-05-17 06:49:32 -05:00
John Bowler
1921e6db90
[devel] Reversed earlier change of transformation order; move
...
png_expand_16 back where it was before libpng-1.5.3beta07.
The change doesn't work because it requires 16 bit gamma tables when the code
only generates 8 bit ones. This fails silently; the libpng code just doesn't
do any gamma correction. Moving the tests back leaves the old, inaccurate, 8
bit gamma calculations, but these are clearly better than none!
2011-05-16 20:57:54 -05:00
Glenn Randers-Pehrson
bb4f77cd95
[devel] Bump to version libpng-1.5.3beta09
2011-05-16 20:42:11 -05:00
Glenn Randers-Pehrson
5ca62c9f35
[devel] Bump to version libpng-1.5.3rc01
2011-05-16 09:14:42 -05:00
Glenn Randers-Pehrson
1591a4c9dc
[devel] Imported from libpng-1.5.3beta08.tar
2011-05-16 09:10:37 -05:00
Glenn Randers-Pehrson
c36074e85a
[devel] Removed reference to non-existent png_set_rgb_to_Y from the manual.
2011-05-16 09:08:51 -05:00
Glenn Randers-Pehrson
73904f52b4
[devel] Minor revisions to comments on pngstruct.h and pngvalid.c
2011-05-15 19:38:06 -05:00
Glenn Randers-Pehrson
0e128dfa2f
[devel] Update CHANGES and ANNOUNCE; fix some new typos in comments.
2011-05-15 19:09:24 -05:00
John Bowler
9994f25733
[devel] pngvalid: add memory overwrite and palette image checks
...
also minor cleanup in the libpng code itself (pngrtran.c and pngrutil.c) and some
extra checking there.
2011-05-15 18:52:39 -05:00
Glenn Randers-Pehrson
593fc04096
[devel] Fix typos and indentation in new material in the documentation.
2011-05-12 22:18:23 -05:00
John Bowler
cb0b29631f
[devel] Documented png_set_alpha_mode(), other changes in libpng.3 and
...
libpng-manual.txt.
The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative
parameters are supplied by the caller), while in the absence of cHRM
sRGB/Rec 709 values are still used.
The bKGD chunk no longer overwrites the background value set by
png_set_background(), allowing the latter to be used before the file
header is read. It never performed any useful function to override
the default anyway.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
(subscription required; visit
2011-05-12 21:48:29 -05:00
John Bowler
ed4d32baa4
[devel] Improve "pngvalid --speed" to exclude more of pngvalid from the time.
2011-05-11 23:02:28 -05:00
Glenn Randers-Pehrson
d83530f45d
[devel] Bump to version libpng-1.5.3beta08
2011-05-11 14:39:11 -05:00
Glenn Randers-Pehrson
cb3f42123f
[devel] Imported from libpng-1.5.3beta07.tar
2011-05-11 14:36:14 -05:00
Glenn Randers-Pehrson
36fa2a0abd
[devel] Check for up->location !PNG_AFTER_IDAT when writing unknown chunks
...
before IDAT.
2011-05-11 06:52:37 -05:00
Glenn Randers-Pehrson
2d3fc1ca3b
[devel] Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and
...
PNG_AFTER_IDAT from pngpriv.h to png.h because they must be visible to
applications that call png_set_unknown_chunks().
2011-05-10 23:48:00 -05:00
John Bowler
f70c7d02e9
[devel] Added named value and 'flag' gamma support to png_set_gamma. Made a
...
minor change from the previous (unreleased) ABI/API to hide the exact value
used for Macs - it's not a good idea to embed this in the ABI!
2011-05-10 22:54:37 -05:00
Glenn Randers-Pehrson
d768d103cf
[devel] Minor revision of commentary about png_set_alpha_mode().
2011-05-08 23:26:19 -05:00
Glenn Randers-Pehrson
44e26d4149
[devel] Revised commentary about png_set_alpha_mode() to make it clearer
...
that this only affects how composited pixels are returned to the calling
application; they don't affect the pixels that are written to a PNG file.
2011-05-08 22:56:42 -05:00
John Bowler
96cec0e1a3
[devel] Added expand_16 suppport to the high level interface.
2011-05-08 22:48:12 -05:00
John Bowler
a9b34191ae
[devel] Added expand_16 suppport to the high level interface.
2011-05-08 19:46:51 -05:00
Glenn Randers-Pehrson
e9eeb743cb
[devel] Reverted recent change of errors to warnings.
2011-05-08 19:39:17 -05:00
Glenn Randers-Pehrson
8ba34667a1
[devel] Changed some errors to warnings, added missing "png_ptr" arg in
...
some currently dead code in pngrtran.c that will be enabled in libpng-1.6
2011-05-08 06:02:18 -05:00
Glenn Randers-Pehrson
87952f0623
[devel] Fix spelling of "implemented" in CHANGES and ANNOUNCE
2011-05-07 22:36:47 -05:00
Glenn Randers-Pehrson
d12c02f020
[devel] Bump to version libpng-1.5.3beta07
2011-05-07 22:07:33 -05:00
Glenn Randers-Pehrson
f3d737dad1
[devel] Imported from libpng-1.5.3beta06.tar
2011-05-07 22:04:26 -05:00
Glenn Randers-Pehrson
492ef9c964
[devel] Apply new PNG_WARNING_PARAMETERS macro in pngwutil.c
2011-05-07 21:42:25 -05:00
Glenn Randers-Pehrson
c7822514cc
[devel] Fix typos in comments, add new API synopses to libpng.3
2011-05-07 21:23:43 -05:00
John Bowler
d273ad2d0f
[devel] Implementation of premultiplied alpha support: png_set_alpha_mode
...
(libpng-manual.txt still to be updated, see png.h for documentation.)
2011-05-07 21:00:28 -05:00
Glenn Randers-Pehrson
af855e415d
[devel] Remove some trailing blanks.
2011-05-07 10:54:28 -05:00
Glenn Randers-Pehrson
6ee0edf880
[devel] Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt
2011-05-05 22:13:18 -05:00
Glenn Randers-Pehrson
00015a81dd
[devel] Bump to version libpng-1.5.3beta06
2011-05-05 21:11:56 -05:00
Glenn Randers-Pehrson
e1018a5bbb
[devel] Imported from libpng-1.5.3beta05.tar
2011-05-05 21:06:51 -05:00
John Bowler
c5bef946b1
[devel] IDAT compression failed if preceded by a compressed text chunk
...
This was because the attempt to reset the zlib stream in png_write_IDAT
happened after the first IDAT chunk had been deflated - much too late.
In this change internal functions are added to claim/release the z_stream
and, hopefully, make the code more robust. Also deflateEnd checking is
added - previously libpng would ignore an error at the end of the stream.
2011-05-05 17:35:39 -05:00
Glenn Randers-Pehrson
c559bb58ed
[devel] Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make zlib "CMF"
...
optimization configureable.
2011-05-05 16:55:20 -05:00
Glenn Randers-Pehrson
4753906826
[devel] Update "last changed" dates and added CHANGES entry.
2011-05-05 07:32:30 -05:00
John Bowler
88b77cc6f3
[devel] Remove png_snprintf, add formatted warning messages.
...
This change adds internal APIs to allow png_warning messages to have parameters
without requiring the host OS to implelment snprintf. As a side effect the
dependency of the RFC1132 code on stdio is removed and PNG_NO_WARNINGS does
actually work now.
2011-05-05 06:49:55 -05:00
Glenn Randers-Pehrson
b3b7168077
[devel] Added appropriate feature test macros (_POSIX_SOURCE, _ISOC99_SOURCE)
...
to ensure libpng sees the correct API.
2011-05-03 22:30:19 -05:00
Glenn Randers-Pehrson
1384c048e4
[devel] Added comments in png.h about relocation of the png_struct
...
and png_info definitions.
2011-04-28 23:22:18 -05:00
Glenn Randers-Pehrson
24fde6e00f
[devel] Bump to version libpng-1.5.3beta05
2011-04-28 23:20:24 -05:00
Glenn Randers-Pehrson
33ced44f9e
[devel] Bump to version libpng-1.5.3beta04
2011-04-27 15:38:15 -05:00
John Bowler
e6dc85bb0b
[devel] Changed png_struct jmp_buf member name to avoid clash with macro
2011-04-27 14:47:15 -05:00
Glenn Randers-Pehrson
20786be695
[devel] Added more about creating and destroying the optional "end_info"
...
structure in the libpng documentation.
2011-04-20 22:20:40 -05:00
Glenn Randers-Pehrson
99778e17af
[devel] Mention the reason to call png_read_end() in the libpng documentation.
2011-04-20 17:43:52 -05:00
Glenn Randers-Pehrson
cf78aee1c4
[devel] Removed an obsolete statement from libpngpf.3
2011-04-17 19:26:56 -05:00
Glenn Randers-Pehrson
6cd31bbfce
[devel] Give credit for recent bug report to Andrew Church.
2011-04-17 19:02:00 -05:00
Glenn Randers-Pehrson
4bc9f8472c
[devel] Updated CHANGES, ANNOUNCE, and pngtest.png to reflect recent changes.
2011-04-17 18:58:38 -05:00
John Bowler
4a12f4a22a
[devel] Cleanup of conditional compilation code and of background/gamma
...
handling. Internal changes only except for a new option to avoid compiling
in the png_build_grayscale_palette API (which is not used at all internally.)
The main change is to move the transform tests (READ_TRANSFORMS,
WRITE_TRANSFORMS) up one level to the caller of the APIs.
2011-04-17 18:34:22 -05:00
Glenn Randers-Pehrson
a1f9426399
[devel] Bump to version libpng-1.5.3beta04
2011-04-16 21:48:23 -05:00
Glenn Randers-Pehrson
9f1cd70774
[devel] Imported from libpng-1.5.3beta03.tar
2011-04-16 21:39:11 -05:00
