88 lines
4.6 KiB
Plaintext
88 lines
4.6 KiB
Plaintext
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Libpng 1.0.5h - December 10, 1999
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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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Changes since the last public release (1.0.5):
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version libpng-1.0.5a October 23, 1999
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Added contrib/pngsuite and contrib/pngminus (Willem van Schaik)
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Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans)
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Further optimization and bugfix of pngvcrd.c
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Revised pngset.c so that it does not allocate or free memory in the user's
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text_ptr structure. Instead, it makes its own copy.
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Created separate write_end_info_struct in pngtest.c for a more severe test.
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Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak.
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version libpng-1.0.5b November 23, 1999
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Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and
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PNG_FLAG_WROTE_tIME from flags to mode.
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Added png_write_info_before_PLTE() function.
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Fixed some typecasting in contrib/gregbook/*.c
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Updated scripts/makevms.com and added makevms.com to contrib/gregbook
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and contrib/pngminus (Martin Zinser)
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version libpng-1.0.5c November 26, 1999
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Moved png_get_header_version from png.h to png.c, to accomodate ansi2knr.
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Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to
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accomodate making DLL's: Moved usr_png_ver from global variable to function
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png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and
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eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays
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into pngtypes.h. Eliminated use of global png_pass arrays. Declared the
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png_CHNK and png_pass arrays to be "const". Made the global arrays
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available to applications (although none are used in libpng itself) when
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PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined.
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Removed some extraneous "-I" from contrib/pngminus/makefile.std
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Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2.
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Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3
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version libpng-1.0.5d November 29, 1999
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Add type cast (png_const_charp) two places in png.c
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Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
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Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
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to applications a macro "PNG_USE_LOCAL_ARRAYS".
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#ifdef out all the new declarations when PNG_USE_GLOBAL_ARRAYS is defined.
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Added PNG_EXPORT_VAR macro to accommodate making DLL's.
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version libpng-1.0.5e November 30, 1999
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Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
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structure; refactored the inflate/deflate support to make adding new chunks
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with trailing compressed parts easier in the future, and added new functions
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png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP,
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png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond).
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NOTE: Applications that write text chunks MUST define png_text->lang. Before
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calling png_set_text(). It must be set to NULL if you want to write tEXt or
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zTXt chunks. If you want your application to be able to run with older
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versions of libpng, use
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#ifdef PNG_iTXt_SUPPORTED
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png_text[i].lang = NULL;
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#endif
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Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned
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offsets (Eric S. Raymond).
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Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into
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PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED
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macros, leaving the separate macros also available.
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Removed comments on #endifs at the end of many short, non-nested #if-blocks.
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version libpng-1.0.5f December 6, 1999
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Changed makefile.solaris to issue a warning about potential problems when
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the ucb "ld" is in the path ahead of the ccs "ld".
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Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3.
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Added sCAL chunk support (Eric S. Raymond).
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version libpng-1.0.5g December 7, 1999
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Fixed "png_free_spallettes" typo in png.h
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Added code to handle new chunks in pngpread.c
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Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block
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Added "translated_key" to png_text structure and png_write_iTXt().
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Added code in pngwrite.c to work around a newly discovered zlib bug.
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version 1.0.5h [December 10, 1999]
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NOTE: regarding the not for version 1.0.5e, the following must also
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be included in your code:
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png_text[i].translated_key = NULL;
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Unknown chunk handling is now supported.
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Option to eliminate all floating point support was added. Some new
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fixed-point functions such as png_set_gAMA_fixed() were added.
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Send comments/corrections/commendations to
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png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
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Glenn R-P
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