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[libpng15] Imported from libpng-1.5.11beta01.tar
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libpng.3
25
libpng.3
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.TH LIBPNG 3 "April 12, 2012"
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.TH LIBPNG 3 "April 28, 2012"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.5.11beta01
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.SH SYNOPSIS
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@@ -979,9 +979,9 @@ the Portable Network Graphics (PNG) format image files. It uses the
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compression library.
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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-manual.txt - A description on how to use and modify libpng
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libpng version 1.5.11beta01 - April 12, 2012
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libpng version 1.5.11beta01 - April 28, 2012
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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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@@ -992,7 +992,7 @@ 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 1.5.11beta01 - April 12, 2012
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libpng versions 0.97, January 1998, through 1.5.11beta01 - April 28, 2012
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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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@@ -1780,7 +1780,7 @@ the screen_gamma value. Pixels with alpha less than 1.0
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will still have linear components.
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Use this format if you have control over your
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compositing software and do don't do other arithmetic
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compositing software and so don't do other arithmetic
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(such as scaling) on the data you get from libpng. Your
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compositing software can simply copy opaque pixels to
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the output but still has linear values for the
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@@ -2111,6 +2111,11 @@ data has been read, or zero if it is missing. The parameters to the
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png_get_<chunk> are set directly if they are simple data types, or a
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pointer into the info_ptr is returned for any complex types.
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The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks
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is simply returned to give the application information about how the
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image was encoded. Libpng itself only does transformations using the file
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gamma when combining semitransparent pixels with the background color.
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png_get_PLTE(png_ptr, info_ptr, &palette,
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&num_palette);
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@@ -2122,7 +2127,7 @@ pointer into the info_ptr is returned for any complex types.
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png_get_gAMA(png_ptr, info_ptr, &file_gamma);
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png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma);
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file_gamma - the gamma at which the file is
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file_gamma - the gamma at which the file was
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written (PNG_INFO_gAMA)
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int_file_gamma - 100,000 times the gamma at which the
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@@ -5579,7 +5584,7 @@ Other rules can be inferred by inspecting the libpng source.
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.SH XIV. Y2K Compliance in libpng
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April 12, 2012
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April 28, 2012
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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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@@ -5855,7 +5860,7 @@ possible without all of you.
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Thanks to Frank J. T. Wojcik for helping with the documentation.
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Libpng version 1.5.11beta01 - April 12, 2012:
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Libpng version 1.5.11beta01 - April 28, 2012:
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Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
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Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
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@@ -5878,7 +5883,7 @@ 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 1.5.11beta01, April 12, 2012, are
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libpng versions 1.2.6, August 15, 2004, through 1.5.11beta01, April 28, 2012, are
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Copyright (c) 2004,2006-2007 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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@@ -5977,7 +5982,7 @@ 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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April 12, 2012
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April 28, 2012
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.\" end of man page
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