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314 Commits

Author SHA1 Message Date
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
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
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
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
John Bowler
537c146082 [devel] Fixed gcc -ansi -pedantic compile, using __STRICT_ANSI__ 2011-04-15 06:36:21 -05:00
Glenn Randers-Pehrson
8abcf141fa [devel] Imported from libpng-1.5.3beta02.tar 2011-04-03 06:36:34 -05:00
Glenn Randers-Pehrson
205483d592 [devel] Added PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro. 2011-04-01 12:33:42 -05:00
Glenn Randers-Pehrson
f83783115f [devel] Use a mode bit to avoid reopening the zstream except when necessary. 2011-03-31 22:06:04 -05:00
Glenn Randers-Pehrson
1345cbeea8 [devel] Update change comments (1.5.2 -> 1.5.3) 2011-03-31 20:33:04 -05:00
Glenn Randers-Pehrson
6b3d50b2cd [devel] Re-initialize the zlib compressor before compressing non-IDAT chunks. 2011-03-31 20:14:29 -05:00
Glenn Randers-Pehrson
dcc3505c7b [devel] Imported from libpng-1.5.2.tar 2011-03-31 11:29:05 -05:00
Glenn Randers-Pehrson
f3dd1cc51e [devel] Imported from libpng-1.5.2rc01.tar 2011-03-18 22:03:48 -05:00
Glenn Randers-Pehrson
cad6798a8c [devel] Imported from libpng-1.5.2beta01.tar 2011-02-13 06:13:39 -06:00
Glenn Randers-Pehrson
c36bb79352 [devel] Trim trailing blanks from sources and manual 2011-02-12 09:49:07 -06:00
John Bowler
4d56296443 [devel] Implement expansion to 16 bits 2011-02-12 09:01:20 -06:00
John Bowler
9b872f4cf9 [devel] Clean up ALPHA flags and transformations 2011-02-12 09:00:16 -06:00
Glenn Randers-Pehrson
8625b394b5 [devel] Changed some names of formal parameters to avoid Shadow warnings 2011-02-03 21:43:38 -06:00
Glenn Randers-Pehrson
25d2d47f86 [devel] updated the commentary in pngpriv.h about PNG_UNUSED(). 2011-01-31 10:25:10 -06:00
Glenn Randers-Pehrson
4c0eaee5c6 [devel] Changed PNG_UNUSED to "(void)param;" 2011-01-30 11:55:35 -06:00
Glenn Randers-Pehrson
bf3293a3cb [devel] Fixed comments around PNG_UNUSED macro definition in pngpriv.h 2011-01-28 15:14:43 -06:00
Glenn Randers-Pehrson
4e2e14addf [devel] Changed PNG_UNUSED from "param=param;" to "{if(param){}}". 2011-01-27 13:23:08 -06:00
Glenn Randers-Pehrson
0e15da5b94 [devel] Simplified the PNG_UNUSED macro. 2011-01-27 12:45:56 -06:00
Glenn Randers-Pehrson
2774238722 [devel] Trying a different PNG_UNUSED macro. 2011-01-27 09:37:34 -06:00
Glenn Randers-Pehrson
f5ea1b7095 [devel] Imported from libpng-1.5.0.tar 2011-01-06 06:45:07 -06:00
Glenn Randers-Pehrson
64b863cd2a [devel] Update copyright year and bump to version libpng-1.5.0rc07 2011-01-04 09:58:33 -06:00
Glenn Randers-Pehrson
a7d604e681 [devel] Imported from libpng-1.5.0rc06.tar 2011-01-04 09:09:27 -06:00
Glenn Randers-Pehrson
8f8061adba [devel] Imported from libpng-1.5.0rc05.tar 2010-12-31 09:15:08 -06:00
Glenn Randers-Pehrson
332594dd06 [devel] Bump to version libpng-1.5.0rc04 2010-12-27 22:18:05 -06:00
Glenn Randers-Pehrson
57731529dc [devel] Bump to version libpng-1.5.0rc03 2010-12-27 21:35:41 -06:00
Glenn Randers-Pehrson
3af77feaa3 [devel] Bump to version libpng-1.5.0rc02 2010-12-27 09:21:50 -06:00
Glenn Randers-Pehrson
fd20a5ae9b [devel] Imported from libpng-1.5.0rc01.tar 2010-12-27 08:55:13 -06:00
Glenn Randers-Pehrson
d3b76572c7 [devel] Bump to version libpng-1.5.0beta59 2010-12-19 17:06:32 -06:00
Glenn Randers-Pehrson
4c93a7cb6f [devel] Bump to version libpng-1.5.0beta58 2010-12-09 06:11:18 -06:00
Glenn Randers-Pehrson
9f044c17fa [devel] Added some whitespace in png.h and pngpriv.h, revised a comment 
in pngvalid.c
 2010-12-07 14:59:43 -06:00
Glenn Randers-Pehrson
845b74e6d4 [devel] Bump to version libpng-1.5.0beta57 2010-12-06 20:25:05 -06:00
Glenn Randers-Pehrson
d546f4399f [devel] Added the private PNG_UNUSED() macro definition in pngpriv.h. 
(adapted from the UNUSED() macro in pngvalid.c by John Bowler)
 2010-12-04 20:41:36 -06:00
Glenn Randers-Pehrson
2776d5e9e6 [devel] Bump to version libpng-1.5.0beta56 2010-11-21 15:19:55 -06:00
Glenn Randers-Pehrson
a581556b17 [master] Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin) 
Moved reading of file signature into png_read_sig (Cosmin)
Fixed atomicity of chunk header serialization (Cosmin)
Added test for io_state in pngtest.c (Cosmin)
Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts.
 2010-11-20 21:48:29 -06:00
Glenn Randers-Pehrson
d801b3882c [devel] Bump to version libpng-1.5.0beta55 2010-11-11 07:19:19 -06:00
Glenn Randers-Pehrson
71c0dd6c4a [devel] Bump to version libpng-1.5.0beta54 2010-10-17 20:37:37 -05:00
Glenn Randers-Pehrson
5393915bf6 [devel] Bump to version libpng-1.5.0beta53 2010-10-15 19:28:31 -05:00
Glenn Randers-Pehrson
1c91ab2586 [devel] Bump to version libpng-1.5.0beta52 2010-10-15 15:13:31 -05:00
Glenn Randers-Pehrson
f0eda4e8d7 [devel] Imported from libpng-1.5.0beta51.tar 2010-10-15 15:08:42 -05:00
Glenn Randers-Pehrson
a0de64f3c3 [devel] Bump to version 1.5.0beta51 2010-10-14 07:35:54 -05:00
Glenn Randers-Pehrson
7e1fabe2f7 [devel] Imported from libpng-1.5.0beta50.tar 2010-10-14 07:35:45 -05:00
Glenn Randers-Pehrson
94b582e45e [devel] Bump to version 1.5.0beta50 2010-10-07 22:34:33 -05:00
Glenn Randers-Pehrson
1b49a71df4 [devel] Imported from libpng-1.5.0beta49.tar 2010-10-07 21:01:17 -05:00
Glenn Randers-Pehrson
209eee579a [devel] Bump to version libpng-1.5.0beta49 2010-10-04 23:06:17 -05:00