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[devel] Trim trailing blanks from sources and manual
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Glenn Randers-Pehrson
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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 1.5.2beta01 - February 4, 2011
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libpng version 1.5.2beta01 - February 12, 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 1.5.2beta01 - February 4, 2011
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libpng versions 0.97, January 1998, through 1.5.2beta01 - February 12, 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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@ -1176,8 +1176,8 @@ As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
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added. It expands the sample depth without changing tRNS to alpha.
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As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as
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png_set_expand however the resultant channels have 16 bits rather than 8. Use
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this when the output color or gray channels are made linear to avoid fairly
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png_set_expand(), however, the resultant channels have 16 bits rather than 8.
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Use this when the output color or gray channels are made linear to avoid fairly
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severe accuracy loss.
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if (bit_depth < 16)
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@ -4114,7 +4114,7 @@ Other rules can be inferred by inspecting the libpng source.
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XIV. Y2K Compliance in libpng
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February 4, 2011
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February 12, 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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34
libpng.3
34
libpng.3
@ -1,4 +1,4 @@
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.TH LIBPNG 3 "February 4, 2011"
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.TH LIBPNG 3 "February 12, 2011"
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.SH NAME
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libpng \- Portable Network Graphics (PNG) Reference Library 1.5.2beta01
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.SH SYNOPSIS
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@ -576,10 +576,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.5.2beta01
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\fI\fB
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\fBvoid png_set_expand_16 (png_structp \fIpng_ptr\fP\fB);\fP
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\fI\fB
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\fBvoid png_set_expand_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP
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\fI\fB
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@ -923,7 +919,7 @@ 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 1.5.2beta01 - February 4, 2011
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libpng version 1.5.2beta01 - February 12, 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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@ -934,7 +930,7 @@ 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 1.5.2beta01 - February 4, 2011
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libpng versions 0.97, January 1998, through 1.5.2beta01 - February 12, 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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@ -2084,13 +2080,13 @@ viewing application that wishes to treat all images in the same way.
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if (color_type == PNG_COLOR_TYPE_PALETTE)
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png_set_palette_to_rgb(png_ptr);
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if (color_type == PNG_COLOR_TYPE_GRAY &&
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bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr);
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if (png_get_valid(png_ptr, info_ptr,
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PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr);
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These three functions are actually aliases for png_set_expand(), added
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if (color_type == PNG_COLOR_TYPE_GRAY &&
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bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr);
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The first two functions are actually aliases for png_set_expand(), added
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in libpng version 1.0.4, with the function names expanded to improve code
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readability. In some future version they may actually do different
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things.
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@ -2099,8 +2095,8 @@ As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
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added. It expands the sample depth without changing tRNS to alpha.
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As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as
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png_set_expand however the resultant channels have 16 bits rather than 8. Use
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this when the output color or gray channels are made linear to avoid fairly
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png_set_expand(), however, the resultant channels have 16 bits rather than 8.
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Use this when the output color or gray channels are made linear to avoid fairly
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severe accuracy loss.
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if (bit_depth < 16)
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@ -2308,7 +2304,7 @@ Libpng approximates this with integers scaled by 32768:
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The calculation is done in a linear colorspace, if the image gamma
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can be determined.
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If you have a grayscale and you are using png_set_expand_depth(),
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If you have a grayscale and you are using png_set_expand_gray_1_2_4_to_8(),
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png_set_expand(), or png_set_gray_to_rgb to change to truecolor or to
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a higher bit-depth, you must either supply the background color as a gray
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value at the original file bit-depth (need_expand = 1) or else supply the
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@ -4579,7 +4575,7 @@ and memset(), respectively.
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The function png_set_gray_1_2_4_to_8() was removed. It has been
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deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
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png_set_expand_gray_1_2_4_to_8() because the former function also
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expanded palette images.
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expanded any tRNS chunk to an alpha channel.
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Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32
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were added and are used by default instead of the corresponding
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@ -5037,7 +5033,7 @@ Other rules can be inferred by inspecting the libpng source.
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.SH XIV. Y2K Compliance in libpng
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February 4, 2011
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February 12, 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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@ -5286,7 +5282,7 @@ 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 1.5.2beta01 - February 4, 2011:
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Libpng version 1.5.2beta01 - February 12, 2011:
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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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@ -5309,7 +5305,7 @@ 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 1.5.2beta01, February 4, 2011, are
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libpng versions 1.2.6, August 15, 2004, through 1.5.2beta01, February 12, 2011, 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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@ -5408,7 +5404,7 @@ 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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February 4, 2011
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February 12, 2011
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.\" end of man page
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10
png.h
10
png.h
@ -1,7 +1,7 @@
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.5.2beta01 - February 4, 2011
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* libpng version 1.5.2beta01 - February 12, 2011
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* Copyright (c) 1998-2011 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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@ -11,7 +11,7 @@
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* Authors and maintainers:
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* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
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* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.5.2beta01 - February 4, 2011: Glenn
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* libpng versions 0.97, January 1998, through 1.5.2beta01 - February 12, 2011: Glenn
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* See also "Contributing Authors", below.
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*
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* Note about libpng version numbers:
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@ -179,7 +179,7 @@
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*
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* This code is released under the libpng license.
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*
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* libpng versions 1.2.6, August 15, 2004, through 1.5.2beta01, February 4, 2011, are
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* libpng versions 1.2.6, August 15, 2004, through 1.5.2beta01, February 12, 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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@ -291,7 +291,7 @@
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* Y2K compliance in libpng:
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* =========================
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*
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* February 4, 2011
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* February 12, 2011
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*
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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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@ -355,7 +355,7 @@
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.5.2beta01"
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#define PNG_HEADER_VERSION_STRING \
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" libpng version 1.5.2beta01 - February 4, 2011\n"
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" libpng version 1.5.2beta01 - February 12, 2011\n"
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#define PNG_LIBPNG_VER_SONUM 15
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#define PNG_LIBPNG_VER_DLLNUM 15
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@ -1467,6 +1467,7 @@ png_do_read_transformations(png_structp png_ptr)
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png_do_expand_palette(&(png_ptr->row_info), png_ptr->row_buf + 1,
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png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);
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}
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else
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{
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if (png_ptr->num_trans &&
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@ -1481,8 +1482,9 @@ png_do_read_transformations(png_structp png_ptr)
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}
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#endif
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/* Delay the 'expand 16' step until later for efficiency - so that the
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* intermediate steps work with 8 bit data. */
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/* Delay the 'expand 16' step until later for efficiency, so that the
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* intermediate steps work with 8 bit data.
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*/
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#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
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if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
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