[devel] Imported from libpng-1.5.4beta05.tar
This commit is contained in:
Glenn Randers-Pehrson
parent
ab63dd0892
commit
fb29e51dbd
21
ANNOUNCE
21
ANNOUNCE
@ -1,5 +1,5 @@
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Libpng 1.5.4beta04 - June 16, 2011
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Libpng 1.5.4beta05 - June 18, 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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@ -9,20 +9,20 @@ 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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1.5.4beta04.tar.xz (LZMA-compressed, recommended)
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1.5.4beta04.tar.gz
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1.5.4beta04.tar.bz2
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1.5.4beta05.tar.xz (LZMA-compressed, recommended)
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1.5.4beta05.tar.gz
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1.5.4beta05.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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lp154b04.7z (LZMA-compressed, recommended)
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lp154b04.zip
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lp154b05.7z (LZMA-compressed, recommended)
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lp154b05.zip
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Other information:
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1.5.4beta04-README.txt
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1.5.4beta04-LICENSE.txt
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1.5.4beta05-README.txt
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1.5.4beta05-LICENSE.txt
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Changes since the last public release (1.5.2):
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@ -220,6 +220,11 @@ Version 1.5.4beta04 [June 16, 2011]
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not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built.
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Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8
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Version 1.5.4beta05 [June 18, 2011]
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Renamed png_set_strip_16() to png_set_scale_16() and renamed
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png_set_chop_16() to png_set_strip(16) in an attempt to minimize the
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behavior changes between libpng14 and libpng15.
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
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||||
(subscription required; visit
|
||||
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
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5
CHANGES
5
CHANGES
@ -3483,6 +3483,11 @@ Version 1.5.4beta04 [June 16, 2011]
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not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built.
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Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8
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Version 1.5.4beta05 [June 18, 2011]
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Renamed png_set_strip_16() to png_set_scale_16() and renamed
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png_set_chop_16() to png_set_strip(16) in an attempt to minimize the
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behavior changes between libpng14 and libpng15.
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||||
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
|
||||
(subscription required; visit
|
||||
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
|
||||
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4
LICENSE
4
LICENSE
@ -10,7 +10,7 @@ this sentence.
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This code is released under the libpng license.
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libpng versions 1.2.6, August 15, 2004, through 1.5.4beta05, June 16, 2011, are
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libpng versions 1.2.6, August 15, 2004, through 1.5.4beta05, June 18, 2011, are
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Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
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distributed according to the same disclaimer and license as libpng-1.2.5
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with the following individual added to the list of Contributing Authors
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@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
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Glenn Randers-Pehrson
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glennrp at users.sourceforge.net
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June 16, 2011
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June 18, 2011
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2
README
2
README
@ -1,4 +1,4 @@
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README for libpng version 1.5.4beta05 - June 16, 2011 (shared library 15.0)
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README for libpng version 1.5.4beta05 - June 18, 2011 (shared library 15.0)
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See the note about version numbers near the top of png.h
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See INSTALL for instructions on how to install libpng.
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@ -231,8 +231,8 @@ uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
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png_set_expand(png_ptr);
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#ifdef PNG_READ_16_TO_8_SUPPORTED
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if (bit_depth == 16)
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# ifdef PNG_READ_CHOP_16_TO_8_SUPPORTED
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png_set_chop_16(png_ptr);
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# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
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png_set_scale_16(png_ptr);
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# else
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png_set_strip_16(png_ptr);
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# endif
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@ -313,8 +313,8 @@ static void readpng2_info_callback(png_structp png_ptr, png_infop info_ptr)
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png_set_expand(png_ptr);
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#ifdef PNG_READ_16_TO_8_SUPPORTED
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if (bit_depth == 16)
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# ifdef PNG_READ_CHOP_16_TO_8_SUPPORTED
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png_set_chop_16(png_ptr);
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# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
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png_set_scale_16(png_ptr);
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# else
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png_set_strip_16(png_ptr);
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# endif
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@ -37,4 +37,4 @@ option SETJMP on
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option STDIO on
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option READ_EXPAND on
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option READ_16_TO_8 on
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option READ_16_TO_8_ACCURATE_SCALE on
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option READ_STRIP_16_TO_8 on
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@ -37,5 +37,5 @@ option READ_bKGD on
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option READ_GAMMA on
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option READ_EXPAND on
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option READ_16_TO_8 on
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option READ_CHOP_16_TO_8 on
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option READ_STRIP_16_TO_8 on
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option READ_GRAY_TO_RGB on
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@ -177,8 +177,8 @@ BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData,
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#ifdef PNG_READ_16_TO_8_SUPPORTED
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if (iBitDepth == 16)
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# ifdef PNG_READ_CHOP_16_TO_8_SUPPORTED
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png_set_chop_16(png_ptr);
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# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
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png_set_scale_16(png_ptr);
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# else
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png_set_strip_16(png_ptr);
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# endif
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@ -1,6 +1,6 @@
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libpng-manual.txt - A description on how to use and modify libpng
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libpng version 1.5.4beta04 - June 16, 2011
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libpng version 1.5.4beta05 - June 18, 2011
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Updated and distributed by Glenn Randers-Pehrson
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<glennrp at users.sourceforge.net>
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Copyright (c) 1998-2011 Glenn Randers-Pehrson
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@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
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Based on:
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libpng versions 0.97, January 1998, through 1.5.4beta04 - June 16, 2011
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libpng versions 0.97, January 1998, through 1.5.4beta05 - June 18, 2011
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Updated and distributed by Glenn Randers-Pehrson
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Copyright (c) 1998-2011 Glenn Randers-Pehrson
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@ -847,12 +847,12 @@ interface or libpng API calls for the low level interface. For reference the
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settings and API calls required are:
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8-bit values:
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PNG_TRANSFORM_STRIP_16 | PNG_EXPAND
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png_set_expand(png_ptr); png_set_strip_16(png_ptr);
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PNG_TRANSFORM_SCALE_16 | PNG_EXPAND
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png_set_expand(png_ptr); png_set_scale_16(png_ptr);
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If you must get exactly the same inaccurate results
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produced by default in versions prior to libpng-1.5.4,
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use PNG_TRANSFORM_CHOP_16 and png_set_chop_16(png_ptr)
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use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr)
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instead.
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16-bit values:
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@ -878,8 +878,10 @@ the entire image into memory, and (b) the input transformations
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you want to do are limited to the following set:
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PNG_TRANSFORM_IDENTITY No transformation
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PNG_TRANSFORM_STRIP_16 Strip 16-bit samples to
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8-bit
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PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to
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8-bit accurately
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PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to
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8-bit less accurately
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PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel
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PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit
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samples to bytes
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@ -1404,12 +1406,12 @@ byte, unless png_set_packing() is called. 8-bit RGB data will be stored
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in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
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is called to insert filler bytes, either before or after each RGB triplet.
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16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
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byte of the color value first, unless png_set_strip_16() is called to
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byte of the color value first, unless png_set_scale_16() is called to
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transform it to regular RGB RGB triplets, or png_set_filler() or
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png_set_add alpha() is called to insert filler bytes, either before or
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after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
|
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be modified with
|
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png_set_filler(), png_set_add_alpha(), or png_set_strip_16().
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be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(),
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or png_set_scale_16().
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The following code transforms grayscale images of less than 8 to 8 bits,
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changes paletted images to RGB, and adds a full alpha channel if there is
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@ -1446,7 +1448,7 @@ PNG can have files with 16 bits per channel. If you only can handle
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8 bits per channel, this will strip the pixels down to 8-bit.
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if (bit_depth == 16)
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png_set_strip_16(png_ptr);
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png_set_scale_16(png_ptr);
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If you need to process the alpha channel on the image separately from the image
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data (for example if you convert it to a bitmap mask) it is possible to have
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@ -4103,13 +4105,10 @@ use with textual data.
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Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
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option was off by default, and slightly inaccurate scaling occurred.
|
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This option can no longer be turned off, and 16-to-8 scaling is always
|
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accurate. This change will result in some different results while
|
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reading 16-bit images, with none of the pixels being off-by-one any
|
||||
longer (see Clause 13.12 of the PNG specification). If you must
|
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have exactly the same inaccurate results that libpng produced by
|
||||
default previously, then you can use the png_set_chop_16() API instead
|
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of png_set_strip_16().
|
||||
This option can no longer be turned off, and the choice of accurate
|
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or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8()
|
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API for accurate scaling or the old png_set_strip_16_to_8() API for simple
|
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chopping.
|
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Prior to libpng-1.5.4, the png_set_user_limits() function could only be
|
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used to reduce the width and height limits from the value of
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@ -4425,13 +4424,13 @@ Other rules can be inferred by inspecting the libpng source.
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XIV. Y2K Compliance in libpng
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June 16, 2011
|
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June 18, 2011
|
||||
|
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Since the PNG Development group is an ad-hoc body, we can't make
|
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an official declaration.
|
||||
|
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This is your unofficial assurance that libpng from version 0.71 and
|
||||
upward through 1.5.4beta04 are Y2K compliant. It is my belief that earlier
|
||||
upward through 1.5.4beta05 are Y2K compliant. It is my belief that earlier
|
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versions were also Y2K compliant.
|
||||
|
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Libpng only has three year fields. One is a 2-byte unsigned integer that
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51
libpng.3
51
libpng.3
@ -1,6 +1,6 @@
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.TH LIBPNG 3 "June 16, 2011"
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.TH LIBPNG 3 "June 18, 2011"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.5.4beta04
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libpng \- Portable Network Graphics (PNG) Reference Library 1.5.4beta05
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.SH SYNOPSIS
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\fI\fB
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@ -955,7 +955,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
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.SH LIBPNG.TXT
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libpng-manual.txt - A description on how to use and modify libpng
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libpng version 1.5.4beta04 - June 16, 2011
|
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libpng version 1.5.4beta05 - June 18, 2011
|
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Updated and distributed by Glenn Randers-Pehrson
|
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<glennrp at users.sourceforge.net>
|
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Copyright (c) 1998-2011 Glenn Randers-Pehrson
|
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@ -966,7 +966,7 @@ libpng-manual.txt - A description on how to use and modify libpng
|
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|
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Based on:
|
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|
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libpng versions 0.97, January 1998, through 1.5.4beta04 - June 16, 2011
|
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libpng versions 0.97, January 1998, through 1.5.4beta05 - June 18, 2011
|
||||
Updated and distributed by Glenn Randers-Pehrson
|
||||
Copyright (c) 1998-2011 Glenn Randers-Pehrson
|
||||
|
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@ -1802,12 +1802,12 @@ interface or libpng API calls for the low level interface. For reference the
|
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settings and API calls required are:
|
||||
|
||||
8-bit values:
|
||||
PNG_TRANSFORM_STRIP_16 | PNG_EXPAND
|
||||
png_set_expand(png_ptr); png_set_strip_16(png_ptr);
|
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PNG_TRANSFORM_SCALE_16 | PNG_EXPAND
|
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png_set_expand(png_ptr); png_set_scale_16(png_ptr);
|
||||
|
||||
If you must get exactly the same inaccurate results
|
||||
produced by default in versions prior to libpng-1.5.4,
|
||||
use PNG_TRANSFORM_CHOP_16 and png_set_chop_16(png_ptr)
|
||||
use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr)
|
||||
instead.
|
||||
|
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16-bit values:
|
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@ -1833,8 +1833,10 @@ the entire image into memory, and (b) the input transformations
|
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you want to do are limited to the following set:
|
||||
|
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PNG_TRANSFORM_IDENTITY No transformation
|
||||
PNG_TRANSFORM_STRIP_16 Strip 16-bit samples to
|
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8-bit
|
||||
PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to
|
||||
8-bit accurately
|
||||
PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to
|
||||
8-bit less accurately
|
||||
PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel
|
||||
PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit
|
||||
samples to bytes
|
||||
@ -2359,12 +2361,12 @@ byte, unless png_set_packing() is called. 8-bit RGB data will be stored
|
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in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
|
||||
is called to insert filler bytes, either before or after each RGB triplet.
|
||||
16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
|
||||
byte of the color value first, unless png_set_strip_16() is called to
|
||||
byte of the color value first, unless png_set_scale_16() is called to
|
||||
transform it to regular RGB RGB triplets, or png_set_filler() or
|
||||
png_set_add alpha() is called to insert filler bytes, either before or
|
||||
after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
|
||||
be modified with
|
||||
png_set_filler(), png_set_add_alpha(), or png_set_strip_16().
|
||||
be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(),
|
||||
or png_set_scale_16().
|
||||
|
||||
The following code transforms grayscale images of less than 8 to 8 bits,
|
||||
changes paletted images to RGB, and adds a full alpha channel if there is
|
||||
@ -2401,7 +2403,7 @@ PNG can have files with 16 bits per channel. If you only can handle
|
||||
8 bits per channel, this will strip the pixels down to 8-bit.
|
||||
|
||||
if (bit_depth == 16)
|
||||
png_set_strip_16(png_ptr);
|
||||
png_set_scale_16(png_ptr);
|
||||
|
||||
If you need to process the alpha channel on the image separately from the image
|
||||
data (for example if you convert it to a bitmap mask) it is possible to have
|
||||
@ -5058,13 +5060,10 @@ use with textual data.
|
||||
|
||||
Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
|
||||
option was off by default, and slightly inaccurate scaling occurred.
|
||||
This option can no longer be turned off, and 16-to-8 scaling is always
|
||||
accurate. This change will result in some different results while
|
||||
reading 16-bit images, with none of the pixels being off-by-one any
|
||||
longer (see Clause 13.12 of the PNG specification). If you must
|
||||
have exactly the same inaccurate results that libpng produced by
|
||||
default previously, then you can use the png_set_chop_16() API instead
|
||||
of png_set_strip_16().
|
||||
This option can no longer be turned off, and the choice of accurate
|
||||
or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8()
|
||||
API for accurate scaling or the old png_set_strip_16_to_8() API for simple
|
||||
chopping.
|
||||
|
||||
Prior to libpng-1.5.4, the png_set_user_limits() function could only be
|
||||
used to reduce the width and height limits from the value of
|
||||
@ -5380,13 +5379,13 @@ Other rules can be inferred by inspecting the libpng source.
|
||||
|
||||
.SH XIV. Y2K Compliance in libpng
|
||||
|
||||
June 16, 2011
|
||||
June 18, 2011
|
||||
|
||||
Since the PNG Development group is an ad-hoc body, we can't make
|
||||
an official declaration.
|
||||
|
||||
This is your unofficial assurance that libpng from version 0.71 and
|
||||
upward through 1.5.4beta04 are Y2K compliant. It is my belief that earlier
|
||||
upward through 1.5.4beta05 are Y2K compliant. It is my belief that earlier
|
||||
versions were also Y2K compliant.
|
||||
|
||||
Libpng only has three year fields. One is a 2-byte unsigned integer that
|
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@ -5579,7 +5578,7 @@ the first widely used release:
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1.5.3rc01-02 15 10503 15.so.15.3[.0]
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1.5.3beta11 15 10503 15.so.15.3[.0]
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1.5.3 [omitted]
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1.5.4beta01-03 15 10504 15.so.15.4[.0]
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1.5.4beta01-05 15 10504 15.so.15.4[.0]
|
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|
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Henceforth the source version will match the shared-library minor
|
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and patch numbers; the shared-library major version number will be
|
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@ -5636,7 +5635,7 @@ possible without all of you.
|
||||
|
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Thanks to Frank J. T. Wojcik for helping with the documentation.
|
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|
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Libpng version 1.5.4beta04 - June 16, 2011:
|
||||
Libpng version 1.5.4beta05 - June 18, 2011:
|
||||
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
|
||||
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
|
||||
|
||||
@ -5659,7 +5658,7 @@ this sentence.
|
||||
|
||||
This code is released under the libpng license.
|
||||
|
||||
libpng versions 1.2.6, August 15, 2004, through 1.5.4beta04, June 16, 2011, are
|
||||
libpng versions 1.2.6, August 15, 2004, through 1.5.4beta05, June 18, 2011, are
|
||||
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
|
||||
distributed according to the same disclaimer and license as libpng-1.2.5
|
||||
with the following individual added to the list of Contributing Authors
|
||||
@ -5758,7 +5757,7 @@ certification mark of the Open Source Initiative.
|
||||
|
||||
Glenn Randers-Pehrson
|
||||
glennrp at users.sourceforge.net
|
||||
June 16, 2011
|
||||
June 18, 2011
|
||||
|
||||
.\" end of man page
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
.TH LIBPNGPF 3 "June 16, 2011"
|
||||
.TH LIBPNGPF 3 "June 18, 2011"
|
||||
.SH NAME
|
||||
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.4beta05
|
||||
(private functions)
|
||||
|
||||
2
png.5
2
png.5
@ -1,4 +1,4 @@
|
||||
.TH PNG 5 "June 16, 2011"
|
||||
.TH PNG 5 "June 18, 2011"
|
||||
.SH NAME
|
||||
png \- Portable Network Graphics (PNG) format
|
||||
.SH DESCRIPTION
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
/* pngconf.h - machine configurable file for libpng
|
||||
*
|
||||
* libpng version 1.5.4beta05 - June 16, 2011
|
||||
* libpng version 1.5.4beta05 - June 18, 2011
|
||||
*
|
||||
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
|
||||
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
VisualStudio instructions
|
||||
|
||||
libpng version 1.5.4beta05 - June 16, 2011
|
||||
libpng version 1.5.4beta05 - June 18, 2011
|
||||
|
||||
Copyright (c) 1998-2010 Glenn Randers-Pehrson
|
||||
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
<!--
|
||||
* zlib.props - location of zlib source
|
||||
*
|
||||
* libpng version 1.5.4beta05 - June 16, 2011
|
||||
* libpng version 1.5.4beta05 - June 18, 2011
|
||||
*
|
||||
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
|
||||
*
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
|
||||
Makefiles for libpng version 1.5.4beta05 - June 16, 2011
|
||||
Makefiles for libpng version 1.5.4beta05 - June 18, 2011
|
||||
|
||||
pnglibconf.h.prebuilt => Stores configuration settings
|
||||
makefile.linux => Linux/ELF makefile
|
||||
|
||||
@ -556,7 +556,8 @@ option READ_16_TO_8_ACCURATE_SCALE requires READ_16_TO_8
|
||||
|
||||
# added at libpng-1.5.4
|
||||
|
||||
option READ_CHOP_16_TO_8 requires READ_16_TO_8
|
||||
option READ_SCALE_16_TO_8 requires READ_16_TO_8
|
||||
option READ_STRIP_16_TO_8 requires READ_16_TO_8
|
||||
|
||||
option WRITE_OPTIMIZE_CMF requires WRITE
|
||||
|
||||
|
||||
@ -76,7 +76,8 @@
|
||||
#define PNG_READ_BGR_SUPPORTED
|
||||
#define PNG_READ_bKGD_SUPPORTED
|
||||
#define PNG_READ_cHRM_SUPPORTED
|
||||
#define PNG_READ_CHOP_16_TO_8_SUPPORTED
|
||||
#define PNG_READ_SCALE_16_TO_8_SUPPORTED
|
||||
#define PNG_READ_STRIP_16_TO_8_SUPPORTED
|
||||
#define PNG_READ_COMPOSITE_NODIV_SUPPORTED
|
||||
#define PNG_READ_EXPAND_16_SUPPORTED
|
||||
#define PNG_READ_EXPAND_SUPPORTED
|
||||
|
||||
Loading…
Reference in New Issue
Block a user