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92 lines
3.9 KiB
Plaintext
92 lines
3.9 KiB
Plaintext
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Libpng 1.5.5beta07 - September 1, 2011
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This is not intended to be a public release. It will be replaced
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within a few weeks by a public version or by another test version.
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Files available for download:
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Source files with LF line endings (for Unix/Linux) and with a
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"configure" script
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1.5.5beta07.tar.xz (LZMA-compressed, recommended)
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1.5.5beta07.tar.gz
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1.5.5beta07.tar.bz2
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Source files with CRLF line endings (for Windows), without the
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"configure" script
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lp155b07.7z (LZMA-compressed, recommended)
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lp155b07.zip
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Other information:
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1.5.5beta07-README.txt
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1.5.5beta07-LICENSE.txt
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Changes since the last public release (1.5.4):
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Version 1.5.5beta01 [July 13, 2011]
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Fixed some typos and made other minor changes in the manual.
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Updated contrib/pngminus/makefile.std (Samuli Souminen)
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Version 1.5.5beta02 [July 14, 2011]
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Revised Makefile.am and Makefile.in to look in the right directory for
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pnglibconf.h.prebuilt
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Version 1.5.5beta03 [July 27, 2011]
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Enabled compilation with g++ compiler. This compiler does not recognize
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the file extension, so it always compiles with C++ rules. Made minor
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changes to pngrutil.c to cast results where C++ expects it but C does not.
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Minor editing of libpng.3 and libpng-manual.txt.
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Version 1.5.5beta04 [July 29, 2011]
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Revised CMakeLists.txt (Clifford Yapp)
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Updated commentary about the png_rgb_to_gray() default coefficients
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in the manual and in pngrtran.c
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Version 1.5.5beta05 [August 17, 2011]
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Prevent unexpected API exports from non-libpng DLLs on Windows. The "_DLL"
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is removed from the test of whether a DLL is being built (this erroneously
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caused the libpng APIs to be marked as DLL exports in static builds under
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Microsoft Visual Studio). Almost all of the libpng building configuration
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is moved from pngconf.h to pngpriv.h, but PNG_DLL_EXPORT remains in
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pngconf.h, though, so that it is colocated with the import definition (it
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is no longer used anywhere in the installed headers). The VStudio project
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definitions have been cleaned up: "_USRDLL" has been removed from the
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static library builds (this was incorrect), and PNG_USE_DLL has been added
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to pngvalid to test the functionality (pngtest does not supply it,
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deliberately). The spurious "_EXPORTS" has been removed from the
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libpng build (all these errors were a result of copy/paste between project
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configurations.)
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Added new types and internal functions for CIE RGB end point handling to
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pngpriv.h (functions yet to be implemented).
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Version 1.5.5beta06 [August 26, 2011]
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Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set in CMakeLists.txt
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(Clifford Yap)
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Fixes to rgb_to_gray and cHRM XYZ APIs (John Bowler):
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The rgb_to_gray code had errors when combined with gamma correction.
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Some pixels were treated as true grey when they weren't and such pixels
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and true grey ones were not gamma corrected (the original value of the
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red component was used instead). APIs to get and set cHRM using color
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space end points have been added and the rgb_to_gray code that defaults
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based on cHRM (introduced in 1.5.4) has been corrected. A considerable
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number of tests has been added to pngvalid for the rgb_to_gray transform.
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Arithmetic errors in rgb_to_gray whereby the calculated gray value was
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truncated to the bit depth rather than rounded have been fixed except in
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the 8-bit non-gamma-corrected case (where consistency seems more important
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than correctness.) The code still has considerable inaccuracies in the
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8-bit case because 8-bit linear arithmetic is used.
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Version 1.5.5beta07 [September 1, 2011]
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Added "$(ARCH)" option to makefile.darwin
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Added SunOS support to configure.ac and Makefile.am
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
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(subscription required; visit
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https://lists.sourceforge.net/lists/listinfo/png-mng-implement
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to subscribe) or to glennrp at users.sourceforge.net
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Glenn R-P
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