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32
libpng.3
32
libpng.3
@@ -1,6 +1,6 @@
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.TH LIBPNG 3 "June 27, 2006"
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.TH LIBPNG 3 "October 2, 2006"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.2.12
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libpng \- Portable Network Graphics (PNG) Reference Library 1.2.13beta1
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.SH SYNOPSIS
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\fI\fB
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@@ -821,7 +821,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
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.SH LIBPNG.TXT
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libpng.txt - A description on how to use and modify libpng
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libpng version 1.2.12 - June 27, 2006
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libpng version 1.2.13beta1 - October 2, 2006
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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) 1998-2005 Glenn Randers-Pehrson
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@@ -1213,7 +1213,7 @@ dithering, and setting filler.) If this is the case, simply do this:
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png_read_png(png_ptr, info_ptr, png_transforms, NULL)
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where png_transforms is an integer containing the logical OR of
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where png_transforms is an integer containing the bitwise OR of
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some set of transformation flags. This call is equivalent to png_read_info(),
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followed the set of transformations indicated by the transform mask,
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then png_read_image(), and finally png_read_end().
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@@ -2093,7 +2093,7 @@ point to libpng-allocated storage with the following function:
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png_free_data(png_ptr, info_ptr, mask, seq)
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mask - identifies data to be freed, a mask
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containing the logical OR of one or
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containing the bitwise OR of one or
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more of
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PNG_FREE_PLTE, PNG_FREE_TRNS,
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PNG_FREE_HIST, PNG_FREE_ICCP,
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@@ -2155,7 +2155,7 @@ application instead of by libpng, you can use
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png_set_invalid(png_ptr, info_ptr, mask);
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mask - identifies the chunks to be made invalid,
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containing the logical OR of one or
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containing the bitwise OR of one or
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more of
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PNG_INFO_gAMA, PNG_INFO_sBIT,
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PNG_INFO_cHRM, PNG_INFO_PLTE,
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@@ -2467,7 +2467,7 @@ types.
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/* turn on or off filtering, and/or choose
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specific filters. You can use either a single
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PNG_FILTER_VALUE_NAME or the logical OR of one
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PNG_FILTER_VALUE_NAME or the bitwise OR of one
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or more PNG_FILTER_NAME masks. */
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png_set_filter(png_ptr, 0,
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PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE |
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@@ -2840,7 +2840,7 @@ png_set_rows() to put image data in the info structure), simply do this:
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png_write_png(png_ptr, info_ptr, png_transforms, NULL)
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where png_transforms is an integer containing the logical OR of some set of
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where png_transforms is an integer containing the bitwise OR of some set of
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transformation flags. This call is equivalent to png_write_info(),
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followed the set of transformations indicated by the transform mask,
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then png_write_image(), and finally png_write_end().
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@@ -3100,7 +3100,7 @@ point to libpng-allocated storage with the following function:
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png_free_data(png_ptr, info_ptr, mask, seq)
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mask - identifies data to be freed, a mask
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containing the logical OR of one or
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containing the bitwise OR of one or
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more of
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PNG_FREE_PLTE, PNG_FREE_TRNS,
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PNG_FREE_HIST, PNG_FREE_ICCP,
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@@ -3670,12 +3670,12 @@ Libpng can support some of these extensions. To enable them, use the
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png_permit_mng_features() function:
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feature_set = png_permit_mng_features(png_ptr, mask)
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mask is a png_uint_32 containing the logical OR of the
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mask is a png_uint_32 containing the bitwise OR of the
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features you want to enable. These include
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PNG_FLAG_MNG_EMPTY_PLTE
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PNG_FLAG_MNG_FILTER_64
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PNG_ALL_MNG_FEATURES
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feature_set is a png_uint_32 that is the logical AND of
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feature_set is a png_uint_32 that is the bitwise AND of
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your mask with the set of MNG features that is
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supported by the version of libpng that you are using.
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@@ -3738,13 +3738,13 @@ application:
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.SH IX. Y2K Compliance in libpng
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June 27, 2006
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October 2, 2006
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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
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upward through 1.2.12 are Y2K compliant. It is my belief that earlier
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upward through 1.2.13beta1 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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@@ -3966,7 +3966,7 @@ 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 1.2.12 - June 27, 2006:
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Libpng version 1.2.13beta1 - October 2, 2006:
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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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@@ -3987,7 +3987,7 @@ included in the libpng distribution, the latter shall prevail.)
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If you modify libpng you may insert additional notices immediately following
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this sentence.
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libpng versions 1.2.6, August 15, 2004, through 1.2.12, June 27, 2006, are
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libpng versions 1.2.6, August 15, 2004, through 1.2.13beta1, October 2, 2006, are
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Copyright (c) 2004-2006 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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@@ -4086,7 +4086,7 @@ 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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June 27, 2006
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October 2, 2006
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.\" end of man page
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