mirror of
https://git.code.sf.net/p/libpng/code.git
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7aa2927db0
Always expand pixels to 16-bit samples when premultiplying.
In pngconf.h, require PNG_GAMMA_SUPPORTED to be defined when defining
PNG_READ_PREMULTIPLY_ALPHA_SUPPORTED
Eliminated PNG_DIVIDE_BY_255 and PNG_8_BIT_PREMULTIPLY macros
leaving only PNG_DIVIDE_BY_65535 and PNG_16_BIT_PREMULTIPLY
because we will always work with 16 bits.
52 lines
1.6 KiB
Plaintext
52 lines
1.6 KiB
Plaintext
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Libpng 1.4.1alpha02 - November 29, 2009
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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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1.4.1alpha02.tar.xz (LZMA-compressed, recommended)
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1.4.1alpha02.tar.gz
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1.4.1alpha02.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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lp141a02.zip
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lp141a02.7z
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Other information:
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1.4.1alpha02-README.txt
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1.4.1alpha02-LICENSE.txt
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Changes since the last public release (1.4.0beta107):
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version 1.4.1alpha01 [November 27, 2009]
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Based on 1.4.0beta107
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version 1.4.1alpha02 [November 29, 2009]
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Restored premultiplied alpha feature from version 1.4.0beta105.
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Added "double gamma" to parameters for png_set_premultiply_alpha().
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Added "float gamma_premultiply" member to the png_struct.
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Moved PNG_DIVIDE_BY_255, PNG_8_BIT_PREMULTIPLY(), etc., from
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png.h to pngpriv.h
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Updated documentation about png_set_premultiply_alpha().
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Always expand pixels to 16-bit samples when premultiplying.
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In pngconf.h, require PNG_GAMMA_SUPPORTED to be defined when defining
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PNG_READ_PREMULTIPLY_ALPHA_SUPPORTED
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Eliminated PNG_DIVIDE_BY_255 and PNG_8_BIT_PREMULTIPLY macros
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leaving only PNG_DIVIDE_BY_65535 and PNG_16_BIT_PREMULTIPLY
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because we will always work with 16 bits.
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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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