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Glenn Randers-Pehrson 2011-09-08 12:21:42 -05:00
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4
LICENSE
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@ -10,7 +10,7 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.5.5beta07, August 26, 2011, are libpng versions 1.2.6, August 15, 2004, through 1.5.5beta07, September 8, 2011, are
Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5 distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors with the following individual added to the list of Contributing Authors
@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
August 26, 2011 September 8, 2011

2
README
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@ -1,4 +1,4 @@
README for libpng version 1.5.5beta07 - August 26, 2011 (shared library 15.0) README for libpng version 1.5.5beta07 - September 8, 2011 (shared library 15.0)
See the note about version numbers near the top of png.h See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng. See INSTALL for instructions on how to install libpng.

53
libpng-manual.txt
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@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.5.5beta07 - August 26, 2011 libpng version 1.5.5beta07 - September 8, 2011
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2011 Glenn Randers-Pehrson Copyright (c) 1998-2011 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.5.5beta07 - August 26, 2011 libpng versions 0.97, January 1998, through 1.5.5beta07 - September 8, 2011
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2011 Glenn Randers-Pehrson Copyright (c) 1998-2011 Glenn Randers-Pehrson
@ -691,7 +691,7 @@ or you can use the fixed point equivalent:
png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, PNG_FP_1/screen_gamma); png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, PNG_FP_1/screen_gamma);
If you don't know the gamma for you system it is probably 2.2 - a good If you don't know the gamma for your system it is probably 2.2 - a good
approximation to the IEC standard for display systems (sRGB). If images are approximation to the IEC standard for display systems (sRGB). If images are
too contrasty or washed out you got the value wrong - check your system too contrasty or washed out you got the value wrong - check your system
documentation! documentation!
@ -720,16 +720,18 @@ channel. To display these files correctly you need to compose the data onto a
suitable background, as described in the PNG specification. suitable background, as described in the PNG specification.
Libpng only supports composing onto a single color (using png_set_background; Libpng only supports composing onto a single color (using png_set_background;
see below.) Otherwise you must do the composition yourself and, in this case, see below). Otherwise you must do the composition yourself and, in this case,
you may need to call png_set_alpha_mode: you may need to call png_set_alpha_mode:
#if PNG_LIBPNG_VER >= 10504 #if PNG_LIBPNG_VER >= 10504
png_set_alpha_mode(png_ptr, mode, screen_gamma); png_set_alpha_mode(png_ptr, mode, screen_gamma);
#else
png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
#endif #endif
The screen_gamma value is the same as the argument to png_set_gamma, however how The screen_gamma value is the same as the argument to png_set_gamma; however,
it affects the output depends on the mode. png_set_alpha_mode() sets the file how it affects the output depends on the mode. png_set_alpha_mode() sets the
gamma default to 1/screen_gamma, so normally you don't need to call file gamma default to 1/screen_gamma, so normally you don't need to call
png_set_gamma. If you need different defaults call png_set_gamma() before png_set_gamma. If you need different defaults call png_set_gamma() before
png_set_alpha_mode() - if you call it after it will override the settings made png_set_alpha_mode() - if you call it after it will override the settings made
by png_set_alpha_mode(). by png_set_alpha_mode().
@ -756,10 +758,11 @@ scaled, linear encoded, pre-multiplied component values must
be used! be used!
The remaining modes assume you don't need to do any further color correction or The remaining modes assume you don't need to do any further color correction or
that if you do your color correction software knows all about alpha (it that if you do, your color correction software knows all about alpha (it
probably doesn't!) probably doesn't!)
PNG_ALPHA_STANDARD: The data libpng produces is encoded in the standard way PNG_ALPHA_STANDARD: The data libpng produces
is encoded in the standard way
assumed by most correctly written graphics software. assumed by most correctly written graphics software.
The gamma encoding will be removed by libpng and the The gamma encoding will be removed by libpng and the
linear component values will be pre-multiplied by the linear component values will be pre-multiplied by the
@ -789,7 +792,8 @@ dynamic range. To avoid problems, and if your software
supports it, use png_set_expand_16() to force all supports it, use png_set_expand_16() to force all
components to 16 bits. components to 16 bits.
PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD except that PNG_ALPHA_OPTIMIZED: This mode is the same
as PNG_ALPHA_STANDARD except that
completely opaque pixels are gamma encoded according to completely opaque pixels are gamma encoded according to
the screen_gamma value. Pixels with alpha less than 1.0 the screen_gamma value. Pixels with alpha less than 1.0
will still have linear components. will still have linear components.
@ -809,10 +813,11 @@ representation of non-opaque pixels are irrelevant.
You can also try this format if your software is broken; You can also try this format if your software is broken;
it might look better. it might look better.
PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD however all component values, PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD;
however, all component values,
including the alpha channel are gamma encoded. This is including the alpha channel are gamma encoded. This is
an appropriate format to try if your software, or more an appropriate format to try if your software, or more
likely hardware, is totally broken: if it performs likely hardware, is totally broken, i.e., if it performs
linear arithmetic directly on gamma encoded values. linear arithmetic directly on gamma encoded values.
In most cases of broken software or hardware the bug in the final display In most cases of broken software or hardware the bug in the final display
@ -828,14 +833,14 @@ them, there are three recommended ways of using png_set_alpha_mode():
screen_gamma); screen_gamma);
You can do color correction on the result (libpng does not currently You can do color correction on the result (libpng does not currently
support color correction internally.) When you handle the alpha channel support color correction internally). When you handle the alpha channel
you need to undo the gamma encoding and multiply out the alpha. you need to undo the gamma encoding and multiply out the alpha.
png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD, png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD,
screen_gamma); screen_gamma);
png_set_expand_16(png_ptr); png_set_expand_16(png_ptr);
If you are using the high level interface don't call png_set_expand_16(); If you are using the high level interface, don't call png_set_expand_16();
instead pass PNG_TRANSFORM_EXPAND_16 to the interface. instead pass PNG_TRANSFORM_EXPAND_16 to the interface.
With this mode you can't do color correction, but you can do arithmetic, With this mode you can't do color correction, but you can do arithmetic,
@ -847,7 +852,7 @@ including composition and scaling, on the data without further processing.
You can avoid the expansion to 16-bit components with this mode, but you You can avoid the expansion to 16-bit components with this mode, but you
lose the ability to scale the image or perform other linear arithmetic. lose the ability to scale the image or perform other linear arithmetic.
All you can do is compose the result onto a matching output. Since this All you can do is compose the result onto a matching output. Since this
mode is libpng specific you also need to write your own composition mode is libpng-specific you also need to write your own composition
software. software.
If you don't need, or can't handle, the alpha channel you can call If you don't need, or can't handle, the alpha channel you can call
@ -860,7 +865,7 @@ transparent parts of this image.
The background_color is an RGB or grayscale value according to the data format The background_color is an RGB or grayscale value according to the data format
libpng will produce for you. Because you don't yet know the format of the PNG libpng will produce for you. Because you don't yet know the format of the PNG
file if you call png_set_background at this point you must arrange for the file, if you call png_set_background at this point you must arrange for the
format produced by libpng to always have 8-bit or 16-bit components and then format produced by libpng to always have 8-bit or 16-bit components and then
store the color as an 8-bit or 16-bit color as appropriate. The color contains store the color as an 8-bit or 16-bit color as appropriate. The color contains
separate gray and RGB component values, so you can let libpng produce gray or separate gray and RGB component values, so you can let libpng produce gray or
@ -2101,7 +2106,7 @@ to load the whole file into memory when it is interlaced.
libpng includes a test program, pngvalid, that illustrates reading and libpng includes a test program, pngvalid, that illustrates reading and
writing of interlaced images. If you can't get interlacing to work in your writing of interlaced images. If you can't get interlacing to work in your
code and don't want to leave it to libpng (the recommended approach) see code and don't want to leave it to libpng (the recommended approach), see
how pngvalid.c does it. how pngvalid.c does it.
Finishing a sequential read Finishing a sequential read
@ -3909,6 +3914,9 @@ The number libpng_vn is constructed from the major version, minor
version with leading zero, and release number with leading zero, version with leading zero, and release number with leading zero,
(e.g., libpng_vn for version 1.0.7 is 10007). (e.g., libpng_vn for version 1.0.7 is 10007).
Note that this function does not take a png_ptr, so you can call it
before you've created one.
You can also check which version of png.h you used when compiling your You can also check which version of png.h you used when compiling your
application: application:
@ -4145,10 +4153,9 @@ In png_get_iCCP, the type of "profile" was changed from png_charpp
to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep. to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep.
There are changes of form in png.h, including new and changed macros to There are changes of form in png.h, including new and changed macros to
declare declare parts of the API. Some API functions with arguments that are
parts of the API. Some API functions with arguments that are pointers to pointers to data not modified within the function have been corrected to
data not modified within the function have been corrected to declare declare these arguments with PNG_CONST.
these arguments with PNG_CONST.
Much of the internal use of C macros to control the library build has also Much of the internal use of C macros to control the library build has also
changed and some of this is visible in the exported header files, in changed and some of this is visible in the exported header files, in
@ -4222,7 +4229,7 @@ Applications can now choose whether to use these macros or to call the
corresponding function by defining PNG_USE_READ_MACROS or corresponding function by defining PNG_USE_READ_MACROS or
PNG_NO_USE_READ_MACROS before including png.h. Notice that this is PNG_NO_USE_READ_MACROS before including png.h. Notice that this is
only supported from 1.5.0 -defining PNG_NO_USE_READ_MACROS prior to 1.5.0 only supported from 1.5.0 -defining PNG_NO_USE_READ_MACROS prior to 1.5.0
will lead to a link failure. will lead to a link failure.
Prior to libpng-1.5.4, the zlib compressor used the same set of parameters Prior to libpng-1.5.4, the zlib compressor used the same set of parameters
when compressing the IDAT data and textual data such as zTXt and iCCP. when compressing the IDAT data and textual data such as zTXt and iCCP.
@ -4553,7 +4560,7 @@ Other rules can be inferred by inspecting the libpng source.
XIV. Y2K Compliance in libpng XIV. Y2K Compliance in libpng
August 26, 2011 September 8, 2011
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.

61
libpng.3
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@ -1,4 +1,4 @@
.TH LIBPNG 3 "August 26, 2011" .TH LIBPNG 3 "September 8, 2011"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.5beta07 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.5beta07
.SH SYNOPSIS .SH SYNOPSIS
@ -977,7 +977,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.5.5beta07 - August 26, 2011 libpng version 1.5.5beta07 - September 8, 2011
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2011 Glenn Randers-Pehrson Copyright (c) 1998-2011 Glenn Randers-Pehrson
@ -988,7 +988,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.5.5beta07 - August 26, 2011 libpng versions 0.97, January 1998, through 1.5.5beta07 - September 8, 2011
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2011 Glenn Randers-Pehrson Copyright (c) 1998-2011 Glenn Randers-Pehrson
@ -1668,7 +1668,7 @@ or you can use the fixed point equivalent:
png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, PNG_FP_1/screen_gamma); png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, PNG_FP_1/screen_gamma);
If you don't know the gamma for you system it is probably 2.2 - a good If you don't know the gamma for your system it is probably 2.2 - a good
approximation to the IEC standard for display systems (sRGB). If images are approximation to the IEC standard for display systems (sRGB). If images are
too contrasty or washed out you got the value wrong - check your system too contrasty or washed out you got the value wrong - check your system
documentation! documentation!
@ -1697,16 +1697,18 @@ channel. To display these files correctly you need to compose the data onto a
suitable background, as described in the PNG specification. suitable background, as described in the PNG specification.
Libpng only supports composing onto a single color (using png_set_background; Libpng only supports composing onto a single color (using png_set_background;
see below.) Otherwise you must do the composition yourself and, in this case, see below). Otherwise you must do the composition yourself and, in this case,
you may need to call png_set_alpha_mode: you may need to call png_set_alpha_mode:
#if PNG_LIBPNG_VER >= 10504 #if PNG_LIBPNG_VER >= 10504
png_set_alpha_mode(png_ptr, mode, screen_gamma); png_set_alpha_mode(png_ptr, mode, screen_gamma);
#else
png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
#endif #endif
The screen_gamma value is the same as the argument to png_set_gamma, however how The screen_gamma value is the same as the argument to png_set_gamma; however,
it affects the output depends on the mode. png_set_alpha_mode() sets the file how it affects the output depends on the mode. png_set_alpha_mode() sets the
gamma default to 1/screen_gamma, so normally you don't need to call file gamma default to 1/screen_gamma, so normally you don't need to call
png_set_gamma. If you need different defaults call png_set_gamma() before png_set_gamma. If you need different defaults call png_set_gamma() before
png_set_alpha_mode() - if you call it after it will override the settings made png_set_alpha_mode() - if you call it after it will override the settings made
by png_set_alpha_mode(). by png_set_alpha_mode().
@ -1733,10 +1735,11 @@ scaled, linear encoded, pre-multiplied component values must
be used! be used!
The remaining modes assume you don't need to do any further color correction or The remaining modes assume you don't need to do any further color correction or
that if you do your color correction software knows all about alpha (it that if you do, your color correction software knows all about alpha (it
probably doesn't!) probably doesn't!)
PNG_ALPHA_STANDARD: The data libpng produces is encoded in the standard way PNG_ALPHA_STANDARD: The data libpng produces
is encoded in the standard way
assumed by most correctly written graphics software. assumed by most correctly written graphics software.
The gamma encoding will be removed by libpng and the The gamma encoding will be removed by libpng and the
linear component values will be pre-multiplied by the linear component values will be pre-multiplied by the
@ -1766,7 +1769,8 @@ dynamic range. To avoid problems, and if your software
supports it, use png_set_expand_16() to force all supports it, use png_set_expand_16() to force all
components to 16 bits. components to 16 bits.
PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD except that PNG_ALPHA_OPTIMIZED: This mode is the same
as PNG_ALPHA_STANDARD except that
completely opaque pixels are gamma encoded according to completely opaque pixels are gamma encoded according to
the screen_gamma value. Pixels with alpha less than 1.0 the screen_gamma value. Pixels with alpha less than 1.0
will still have linear components. will still have linear components.
@ -1786,10 +1790,11 @@ representation of non-opaque pixels are irrelevant.
You can also try this format if your software is broken; You can also try this format if your software is broken;
it might look better. it might look better.
PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD however all component values, PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD;
however, all component values,
including the alpha channel are gamma encoded. This is including the alpha channel are gamma encoded. This is
an appropriate format to try if your software, or more an appropriate format to try if your software, or more
likely hardware, is totally broken: if it performs likely hardware, is totally broken, i.e., if it performs
linear arithmetic directly on gamma encoded values. linear arithmetic directly on gamma encoded values.
In most cases of broken software or hardware the bug in the final display In most cases of broken software or hardware the bug in the final display
@ -1805,14 +1810,14 @@ them, there are three recommended ways of using png_set_alpha_mode():
screen_gamma); screen_gamma);
You can do color correction on the result (libpng does not currently You can do color correction on the result (libpng does not currently
support color correction internally.) When you handle the alpha channel support color correction internally). When you handle the alpha channel
you need to undo the gamma encoding and multiply out the alpha. you need to undo the gamma encoding and multiply out the alpha.
png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD, png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD,
screen_gamma); screen_gamma);
png_set_expand_16(png_ptr); png_set_expand_16(png_ptr);
If you are using the high level interface don't call png_set_expand_16(); If you are using the high level interface, don't call png_set_expand_16();
instead pass PNG_TRANSFORM_EXPAND_16 to the interface. instead pass PNG_TRANSFORM_EXPAND_16 to the interface.
With this mode you can't do color correction, but you can do arithmetic, With this mode you can't do color correction, but you can do arithmetic,
@ -1824,7 +1829,7 @@ including composition and scaling, on the data without further processing.
You can avoid the expansion to 16-bit components with this mode, but you You can avoid the expansion to 16-bit components with this mode, but you
lose the ability to scale the image or perform other linear arithmetic. lose the ability to scale the image or perform other linear arithmetic.
All you can do is compose the result onto a matching output. Since this All you can do is compose the result onto a matching output. Since this
mode is libpng specific you also need to write your own composition mode is libpng-specific you also need to write your own composition
software. software.
If you don't need, or can't handle, the alpha channel you can call If you don't need, or can't handle, the alpha channel you can call
@ -1837,7 +1842,7 @@ transparent parts of this image.
The background_color is an RGB or grayscale value according to the data format The background_color is an RGB or grayscale value according to the data format
libpng will produce for you. Because you don't yet know the format of the PNG libpng will produce for you. Because you don't yet know the format of the PNG
file if you call png_set_background at this point you must arrange for the file, if you call png_set_background at this point you must arrange for the
format produced by libpng to always have 8-bit or 16-bit components and then format produced by libpng to always have 8-bit or 16-bit components and then
store the color as an 8-bit or 16-bit color as appropriate. The color contains store the color as an 8-bit or 16-bit color as appropriate. The color contains
separate gray and RGB component values, so you can let libpng produce gray or separate gray and RGB component values, so you can let libpng produce gray or
@ -3078,7 +3083,7 @@ to load the whole file into memory when it is interlaced.
libpng includes a test program, pngvalid, that illustrates reading and libpng includes a test program, pngvalid, that illustrates reading and
writing of interlaced images. If you can't get interlacing to work in your writing of interlaced images. If you can't get interlacing to work in your
code and don't want to leave it to libpng (the recommended approach) see code and don't want to leave it to libpng (the recommended approach), see
how pngvalid.c does it. how pngvalid.c does it.
.SS Finishing a sequential read .SS Finishing a sequential read
@ -4887,6 +4892,9 @@ The number libpng_vn is constructed from the major version, minor
version with leading zero, and release number with leading zero, version with leading zero, and release number with leading zero,
(e.g., libpng_vn for version 1.0.7 is 10007). (e.g., libpng_vn for version 1.0.7 is 10007).
Note that this function does not take a png_ptr, so you can call it
before you've created one.
You can also check which version of png.h you used when compiling your You can also check which version of png.h you used when compiling your
application: application:
@ -5123,10 +5131,9 @@ In png_get_iCCP, the type of "profile" was changed from png_charpp
to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep. to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep.
There are changes of form in png.h, including new and changed macros to There are changes of form in png.h, including new and changed macros to
declare declare parts of the API. Some API functions with arguments that are
parts of the API. Some API functions with arguments that are pointers to pointers to data not modified within the function have been corrected to
data not modified within the function have been corrected to declare declare these arguments with PNG_CONST.
these arguments with PNG_CONST.
Much of the internal use of C macros to control the library build has also Much of the internal use of C macros to control the library build has also
changed and some of this is visible in the exported header files, in changed and some of this is visible in the exported header files, in
@ -5200,7 +5207,7 @@ Applications can now choose whether to use these macros or to call the
corresponding function by defining PNG_USE_READ_MACROS or corresponding function by defining PNG_USE_READ_MACROS or
PNG_NO_USE_READ_MACROS before including png.h. Notice that this is PNG_NO_USE_READ_MACROS before including png.h. Notice that this is
only supported from 1.5.0 -defining PNG_NO_USE_READ_MACROS prior to 1.5.0 only supported from 1.5.0 -defining PNG_NO_USE_READ_MACROS prior to 1.5.0
will lead to a link failure. will lead to a link failure.
Prior to libpng-1.5.4, the zlib compressor used the same set of parameters Prior to libpng-1.5.4, the zlib compressor used the same set of parameters
when compressing the IDAT data and textual data such as zTXt and iCCP. when compressing the IDAT data and textual data such as zTXt and iCCP.
@ -5531,7 +5538,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIV. Y2K Compliance in libpng .SH XIV. Y2K Compliance in libpng
August 26, 2011 September 8, 2011
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
@ -5790,7 +5797,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.5.5beta07 - August 26, 2011: Libpng version 1.5.5beta07 - September 8, 2011:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -5813,7 +5820,7 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.5.5beta07, August 26, 2011, are libpng versions 1.2.6, August 15, 2004, through 1.5.5beta07, September 8, 2011, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5 distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors with the following individual added to the list of Contributing Authors
@ -5912,7 +5919,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
August 26, 2011 September 8, 2011
.\" end of man page .\" end of man page

2
libpngpf.3
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@ -1,4 +1,4 @@
.TH LIBPNGPF 3 "August 26, 2011" .TH LIBPNGPF 3 "September 8, 2011"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.5beta07 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.5beta07
(private functions) (private functions)

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "August 26, 2011" .TH PNG 5 "September 8, 2011"
.SH NAME .SH NAME
png \- Portable Network Graphics (PNG) format png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION .SH DESCRIPTION

10
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.5.5beta07 - August 26, 2011 * libpng version 1.5.5beta07 - September 8, 2011
* Copyright (c) 1998-2011 Glenn Randers-Pehrson * Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -11,7 +11,7 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.5.5beta07 - August 26, 2011: Glenn * libpng versions 0.97, January 1998, through 1.5.5beta07 - September 8, 2011: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -189,7 +189,7 @@
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* *
* libpng versions 1.2.6, August 15, 2004, through 1.5.5beta07, August 26, 2011, are * libpng versions 1.2.6, August 15, 2004, through 1.5.5beta07, September 8, 2011, are
* Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are * Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5 * distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors: * with the following individual added to the list of Contributing Authors:
@ -301,7 +301,7 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* August 26, 2011 * September 8, 2011
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
@ -364,7 +364,7 @@
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.5.5beta07" #define PNG_LIBPNG_VER_STRING "1.5.5beta07"
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.5.5beta07 - August 26, 2011\n" " libpng version 1.5.5beta07 - September 8, 2011\n"
#define PNG_LIBPNG_VER_SONUM 15 #define PNG_LIBPNG_VER_SONUM 15
#define PNG_LIBPNG_VER_DLLNUM 15 #define PNG_LIBPNG_VER_DLLNUM 15

2
pngconf.h
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@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng version 1.5.5beta07 - August 26, 2011 * libpng version 1.5.5beta07 - September 8, 2011
* *
* Copyright (c) 1998-2011 Glenn Randers-Pehrson * Copyright (c) 1998-2011 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
projects/vstudio/readme.txt
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@ -1,7 +1,7 @@
VisualStudio instructions VisualStudio instructions
libpng version 1.5.5beta07 - August 26, 2011 libpng version 1.5.5beta07 - September 8, 2011
Copyright (c) 1998-2010 Glenn Randers-Pehrson Copyright (c) 1998-2010 Glenn Randers-Pehrson

2
projects/vstudio/zlib.props
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@ -2,7 +2,7 @@
<!-- <!--
* zlib.props - location of zlib source * zlib.props - location of zlib source
* *
* libpng version 1.5.5beta07 - August 29, 2011 * libpng version 1.5.5beta07 - September 8, 2011
* *
* Copyright (c) 1998-2011 Glenn Randers-Pehrson * Copyright (c) 1998-2011 Glenn Randers-Pehrson
* *

2
scripts/README.txt
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@ -1,5 +1,5 @@
Makefiles for libpng version 1.5.5beta07 - August 26, 2011 Makefiles for libpng version 1.5.5beta07 - September 8, 2011
pnglibconf.h.prebuilt => Stores configuration settings pnglibconf.h.prebuilt => Stores configuration settings
makefile.linux => Linux/ELF makefile makefile.linux => Linux/ELF makefile