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Viktor Szakats 2017-03-31 23:25:57 +00:00
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2
README
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@ -90,7 +90,7 @@ You may also want a copy of the PNG specification. It is available
as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find
these at http://www.libpng.org/pub/png/documents/ these at http://www.libpng.org/pub/png/documents/
This code is currently being archived at libpng.sf.net in the This code is currently being archived at libpng.sourceforge.io in the
[DOWNLOAD] area, and at ftp://ftp.simplesystems.org. If you can't find it [DOWNLOAD] area, and at ftp://ftp.simplesystems.org. If you can't find it
in any of those places, e-mail me, and I'll help you find it. in any of those places, e-mail me, and I'll help you find it.

2
contrib/arm-neon/android-ndk.c
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@ -17,7 +17,7 @@
* *
* Documentation: * Documentation:
* http://www.kandroid.org/ndk/docs/CPU-ARM-NEON.html * http://www.kandroid.org/ndk/docs/CPU-ARM-NEON.html
* http://code.google.com/p/android/issues/detail?id=49065 * https://code.google.com/p/android/issues/detail?id=49065
* *
* NOTE: this requires that libpng is built against the Android NDK and linked * NOTE: this requires that libpng is built against the Android NDK and linked
* with an implementation of the Android ARM 'cpu-features' library. The code * with an implementation of the Android ARM 'cpu-features' library. The code

2
contrib/gregbook/README
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@ -55,7 +55,7 @@ mation and links to the latest version of the source code, and Chapters
13-15 of the book for detailed discussion of the three programs. 13-15 of the book for detailed discussion of the three programs.
Greg Roelofs Greg Roelofs
http://pobox.com/~newt/greg_contact.html https://pobox.com/~newt/greg_contact.html
16 March 2008 16 March 2008

2
contrib/tools/sRGB.h
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@ -14,7 +14,7 @@
* All routines take and return a floating point value in the range * All routines take and return a floating point value in the range
* 0 to 1.0, doing a calculation according to the sRGB specification * 0 to 1.0, doing a calculation according to the sRGB specification
* (in fact the source of the numbers is the wikipedia article at * (in fact the source of the numbers is the wikipedia article at
* http://en.wikipedia.org/wiki/SRGB). * https://en.wikipedia.org/wiki/SRGB).
*/ */
static double static double
sRGB_from_linear(double l) sRGB_from_linear(double l)

28
libpng-manual.txt
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@ -66,17 +66,17 @@ file format in application programs.
The PNG specification (second edition), November 2003, is available as The PNG specification (second edition), November 2003, is available as
a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at
<http://www.w3.org/TR/2003/REC-PNG-20031110/ <https://www.w3.org/TR/2003/REC-PNG-20031110/
The W3C and ISO documents have identical technical content. The W3C and ISO documents have identical technical content.
The PNG-1.2 specification is available at The PNG-1.2 specification is available at
<http://png-mng.sourceforge.net/pub/png/spec/1.2/>. <https://png-mng.sourceforge.io/pub/png/spec/1.2/>.
It is technically equivalent It is technically equivalent
to the PNG specification (second edition) but has some additional material. to the PNG specification (second edition) but has some additional material.
The PNG-1.0 specification is available as RFC 2083 The PNG-1.0 specification is available as RFC 2083
<http://png-mng.sourceforge.net/pub/png/spec/1.0/> and as a <https://png-mng.sourceforge.io/pub/png/spec/1.0/> and as a
W3C Recommendation <http://www.w3.org/TR/REC-png-961001>. W3C Recommendation <https://www.w3.org/TR/REC-png-961001>.
Some additional chunks are described in the special-purpose public chunks Some additional chunks are described in the special-purpose public chunks
documents at <http://www.libpng.org/pub/png/spec/register/> documents at <http://www.libpng.org/pub/png/spec/register/>
@ -3824,7 +3824,7 @@ PNG_FORMAT_FLAG_LINEAR flag below.
When the simplified API needs to convert between sRGB and linear colorspaces, When the simplified API needs to convert between sRGB and linear colorspaces,
the actual sRGB transfer curve defined in the sRGB specification (see the the actual sRGB transfer curve defined in the sRGB specification (see the
article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
approximation used elsewhere in libpng. approximation used elsewhere in libpng.
When an alpha channel is present it is expected to denote pixel coverage When an alpha channel is present it is expected to denote pixel coverage
@ -4088,7 +4088,7 @@ READ APIs
When the simplified API needs to convert between sRGB and linear colorspaces, When the simplified API needs to convert between sRGB and linear colorspaces,
the actual sRGB transfer curve defined in the sRGB specification (see the the actual sRGB transfer curve defined in the sRGB specification (see the
article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
approximation used elsewhere in libpng. approximation used elsewhere in libpng.
WRITE APIS WRITE APIS
@ -4269,7 +4269,7 @@ However, there are some uncertainties about the status of local variables
after a longjmp, so the user may want to be careful about doing anything after a longjmp, so the user may want to be careful about doing anything
after setjmp returns non-zero besides returning itself. Consult your after setjmp returns non-zero besides returning itself. Consult your
compiler documentation for more details. For an alternative approach, you compiler documentation for more details. For an alternative approach, you
may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net), may wish to use the "cexcept" facility (see https://cexcept.sourceforge.io/),
which is illustrated in pngvalid.c and in contrib/visupng. which is illustrated in pngvalid.c and in contrib/visupng.
Beginning in libpng-1.4.0, the png_set_benign_errors() API became available. Beginning in libpng-1.4.0, the png_set_benign_errors() API became available.
@ -4497,7 +4497,7 @@ in a MNG datastream. As a minimum, it must have the MNG 8-byte signature
and the MHDR and MEND chunks. Libpng does not provide support for these and the MHDR and MEND chunks. Libpng does not provide support for these
or any other MNG chunks; your application must provide its own support for or any other MNG chunks; your application must provide its own support for
them. You may wish to consider using libmng (available at them. You may wish to consider using libmng (available at
http://www.libmng.com) instead. https://www.libmng.com/) instead.
VIII. Changes to Libpng from version 0.88 VIII. Changes to Libpng from version 0.88
@ -5197,7 +5197,7 @@ control. The git repository was built from old libpng-x.y.z.tar.gz files
going back to version 0.70. You can access the git repository (read only) going back to version 0.70. You can access the git repository (read only)
at at
git://git.code.sf.net/p/libpng/code https://git.code.sf.net/p/libpng/code.git
or you can browse it with a web browser by selecting the "code" button at or you can browse it with a web browser by selecting the "code" button at
@ -5207,7 +5207,7 @@ Patches can be sent to glennrp at users.sourceforge.net or to
png-mng-implement at lists.sourceforge.net or you can upload them to png-mng-implement at lists.sourceforge.net or you can upload them to
the libpng bug tracker at the libpng bug tracker at
http://libpng.sourceforge.net https://libpng.sourceforge.io/
We also accept patches built from the tar or zip distributions, and We also accept patches built from the tar or zip distributions, and
simple verbal discriptions of bug fixes, reported either to the simple verbal discriptions of bug fixes, reported either to the
@ -5217,7 +5217,7 @@ mailing list, or directly to glennrp.
XV. Coding style XV. Coding style
Our coding style is similar to the "Allman" style Our coding style is similar to the "Allman" style
(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly (See https://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly
braces on separate lines: braces on separate lines:
if (condition) if (condition)
@ -5318,7 +5318,7 @@ Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as
though it were a function. though it were a function.
Control keywords if, for, while, and switch are always followed by a space Control keywords if, for, while, and switch are always followed by a space
to distinguish them from function calls, which have no trailing space. to distinguish them from function calls, which have no trailing space.
We put a space after each comma and after each semicolon We put a space after each comma and after each semicolon
in "for" statements, and we put spaces before and after each in "for" statements, and we put spaces before and after each
@ -5344,7 +5344,7 @@ for a few type names that we inherit from zlib.h.
We prefer "if (something != 0)" and "if (something == 0)" over We prefer "if (something != 0)" and "if (something == 0)" over
"if (something)" and if "(!something)", respectively, and for pointers "if (something)" and if "(!something)", respectively, and for pointers
we prefer "if (some_pointer != NULL)" or "if (some_pointer == NULL)". we prefer "if (some_pointer != NULL)" or "if (some_pointer == NULL)".
We do not use the TAB character for indentation in the C sources. We do not use the TAB character for indentation in the C sources.

36
libpng.3
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@ -576,17 +576,17 @@ file format in application programs.
The PNG specification (second edition), November 2003, is available as The PNG specification (second edition), November 2003, is available as
a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at
<http://www.w3.org/TR/2003/REC-PNG-20031110/ <https://www.w3.org/TR/2003/REC-PNG-20031110/
The W3C and ISO documents have identical technical content. The W3C and ISO documents have identical technical content.
The PNG-1.2 specification is available at The PNG-1.2 specification is available at
<http://png-mng.sourceforge.net/pub/png/spec/1.2/>. <https://png-mng.sourceforge.io/pub/png/spec/1.2/>.
It is technically equivalent It is technically equivalent
to the PNG specification (second edition) but has some additional material. to the PNG specification (second edition) but has some additional material.
The PNG-1.0 specification is available as RFC 2083 The PNG-1.0 specification is available as RFC 2083
<http://png-mng.sourceforge.net/pub/png/spec/1.0/> and as a <https://png-mng.sourceforge.io/pub/png/spec/1.0/> and as a
W3C Recommendation <http://www.w3.org/TR/REC-png-961001>. W3C Recommendation <https://www.w3.org/TR/REC-png-961001>.
Some additional chunks are described in the special-purpose public chunks Some additional chunks are described in the special-purpose public chunks
documents at <http://www.libpng.org/pub/png/spec/register/> documents at <http://www.libpng.org/pub/png/spec/register/>
@ -4334,7 +4334,7 @@ PNG_FORMAT_FLAG_LINEAR flag below.
When the simplified API needs to convert between sRGB and linear colorspaces, When the simplified API needs to convert between sRGB and linear colorspaces,
the actual sRGB transfer curve defined in the sRGB specification (see the the actual sRGB transfer curve defined in the sRGB specification (see the
article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
approximation used elsewhere in libpng. approximation used elsewhere in libpng.
When an alpha channel is present it is expected to denote pixel coverage When an alpha channel is present it is expected to denote pixel coverage
@ -4598,7 +4598,7 @@ READ APIs
When the simplified API needs to convert between sRGB and linear colorspaces, When the simplified API needs to convert between sRGB and linear colorspaces,
the actual sRGB transfer curve defined in the sRGB specification (see the the actual sRGB transfer curve defined in the sRGB specification (see the
article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
approximation used elsewhere in libpng. approximation used elsewhere in libpng.
WRITE APIS WRITE APIS
@ -4779,7 +4779,7 @@ However, there are some uncertainties about the status of local variables
after a longjmp, so the user may want to be careful about doing anything after a longjmp, so the user may want to be careful about doing anything
after setjmp returns non-zero besides returning itself. Consult your after setjmp returns non-zero besides returning itself. Consult your
compiler documentation for more details. For an alternative approach, you compiler documentation for more details. For an alternative approach, you
may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net), may wish to use the "cexcept" facility (see https://cexcept.sourceforge.io/),
which is illustrated in pngvalid.c and in contrib/visupng. which is illustrated in pngvalid.c and in contrib/visupng.
Beginning in libpng-1.4.0, the png_set_benign_errors() API became available. Beginning in libpng-1.4.0, the png_set_benign_errors() API became available.
@ -5007,7 +5007,7 @@ in a MNG datastream. As a minimum, it must have the MNG 8-byte signature
and the MHDR and MEND chunks. Libpng does not provide support for these and the MHDR and MEND chunks. Libpng does not provide support for these
or any other MNG chunks; your application must provide its own support for or any other MNG chunks; your application must provide its own support for
them. You may wish to consider using libmng (available at them. You may wish to consider using libmng (available at
http://www.libmng.com) instead. https://www.libmng.com/) instead.
.SH VIII. Changes to Libpng from version 0.88 .SH VIII. Changes to Libpng from version 0.88
@ -5707,7 +5707,7 @@ control. The git repository was built from old libpng-x.y.z.tar.gz files
going back to version 0.70. You can access the git repository (read only) going back to version 0.70. You can access the git repository (read only)
at at
git://git.code.sf.net/p/libpng/code https://git.code.sf.net/p/libpng/code.git
or you can browse it with a web browser by selecting the "code" button at or you can browse it with a web browser by selecting the "code" button at
@ -5717,7 +5717,7 @@ Patches can be sent to glennrp at users.sourceforge.net or to
png-mng-implement at lists.sourceforge.net or you can upload them to png-mng-implement at lists.sourceforge.net or you can upload them to
the libpng bug tracker at the libpng bug tracker at
http://libpng.sourceforge.net https://libpng.sourceforge.io/
We also accept patches built from the tar or zip distributions, and We also accept patches built from the tar or zip distributions, and
simple verbal discriptions of bug fixes, reported either to the simple verbal discriptions of bug fixes, reported either to the
@ -5727,7 +5727,7 @@ mailing list, or directly to glennrp.
.SH XV. Coding style .SH XV. Coding style
Our coding style is similar to the "Allman" style Our coding style is similar to the "Allman" style
(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly (See https://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly
braces on separate lines: braces on separate lines:
if (condition) if (condition)
@ -5828,7 +5828,7 @@ Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as
though it were a function. though it were a function.
Control keywords if, for, while, and switch are always followed by a space Control keywords if, for, while, and switch are always followed by a space
to distinguish them from function calls, which have no trailing space. to distinguish them from function calls, which have no trailing space.
We put a space after each comma and after each semicolon We put a space after each comma and after each semicolon
in "for" statements, and we put spaces before and after each in "for" statements, and we put spaces before and after each
@ -5854,7 +5854,7 @@ for a few type names that we inherit from zlib.h.
We prefer "if (something != 0)" and "if (something == 0)" over We prefer "if (something != 0)" and "if (something == 0)" over
"if (something)" and if "(!something)", respectively, and for pointers "if (something)" and if "(!something)", respectively, and for pointers
we prefer "if (some_pointer != NULL)" or "if (some_pointer == NULL)". we prefer "if (some_pointer != NULL)" or "if (some_pointer == NULL)".
We do not use the TAB character for indentation in the C sources. We do not use the TAB character for indentation in the C sources.
@ -5987,7 +5987,7 @@ release number plus "betaNN" or "rcNN".
.LP .LP
.IR libpng : .IR libpng :
.IP .IP
http://libpng.sourceforge.net (follow the [DOWNLOAD] link) https://libpng.sourceforge.io/ (follow the [DOWNLOAD] link)
http://www.libpng.org/pub/png http://www.libpng.org/pub/png
.LP .LP
@ -5997,7 +5997,7 @@ http://www.libpng.org/pub/png
.I libpng .I libpng
or at or at
.br .br
ftp://ftp.info-zip.org/pub/infozip/zlib http://zlib.net/
.LP .LP
.IR PNG specification: RFC 2083 .IR PNG specification: RFC 2083
@ -6006,11 +6006,11 @@ ftp://ftp.info-zip.org/pub/infozip/zlib
.I libpng .I libpng
or at or at
.br .br
ftp://ftp.rfc-editor.org:/in-notes/rfc2083.txt https://www.ietf.org/rfc/rfc2083.txt
.br .br
or (as a W3C Recommendation) at or (as a W3C Recommendation) at
.br .br
http://www.w3.org/TR/REC-png.html https://www.w3.org/TR/REC-png.html
.LP .LP
In the case of any inconsistency between the PNG specification In the case of any inconsistency between the PNG specification

8
png.5
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@ -23,11 +23,11 @@ platforms.
PNG specification (second edition), November 2003: PNG specification (second edition), November 2003:
.IP .IP
.br .br
<http://www.w3.org/TR/2003/REC-PNG-20031110/ <https://www.w3.org/TR/2003/REC-PNG-20031110/
PNG 1.2 specification, July 1999: PNG 1.2 specification, July 1999:
.IP .IP
.br .br
http://png-mng.sourceforge.net/pub/png/spec/1.2/ https://png-mng.sourceforge.io/pub/png/spec/1.2/
.LP .LP
PNG 1.0 specification, October 1996: PNG 1.0 specification, October 1996:
.IP .IP
@ -35,11 +35,11 @@ PNG 1.0 specification, October 1996:
RFC 2083 RFC 2083
.IP .IP
.br .br
http://www.ietf.org/rfc/rfc2083.txt https://www.ietf.org/rfc/rfc2083.txt
.br .br
or (as a W3C Recommendation) at or (as a W3C Recommendation) at
.br .br
http://www.w3.org/TR/REC-png-961001 https://www.w3.org/TR/REC-png-961001
.SH AUTHORS .SH AUTHORS
This man page: Glenn Randers-Pehrson This man page: Glenn Randers-Pehrson
.LP .LP

2
png.c
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@ -4295,7 +4295,7 @@ png_set_option(png_structrp png_ptr, int option, int onoff)
defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
/* sRGB conversion tables; these are machine generated with the code in /* sRGB conversion tables; these are machine generated with the code in
* contrib/tools/makesRGB.c. The actual sRGB transfer curve defined in the * contrib/tools/makesRGB.c. The actual sRGB transfer curve defined in the
* specification (see the article at http://en.wikipedia.org/wiki/SRGB) * specification (see the article at https://en.wikipedia.org/wiki/SRGB)
* is used, not the gamma=1/2.2 approximation use elsewhere in libpng. * is used, not the gamma=1/2.2 approximation use elsewhere in libpng.
* The sRGB to linear table is exact (to the nearest 16-bit linear fraction). * The sRGB to linear table is exact (to the nearest 16-bit linear fraction).
* The inverse (linear to sRGB) table has accuracies as follows: * The inverse (linear to sRGB) table has accuracies as follows:

4
png.h
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@ -234,7 +234,7 @@
* *
* See libpng.txt or libpng.3 for more information. The PNG specification * See libpng.txt or libpng.3 for more information. The PNG specification
* is available as a W3C Recommendation and as an ISO Specification, * is available as a W3C Recommendation and as an ISO Specification,
* <http://www.w3.org/TR/2003/REC-PNG-20031110/ * <https://www.w3.org/TR/2003/REC-PNG-20031110/
*/ */
/* /*
@ -2753,7 +2753,7 @@ typedef struct
* *
* When the simplified API needs to convert between sRGB and linear colorspaces, * When the simplified API needs to convert between sRGB and linear colorspaces,
* the actual sRGB transfer curve defined in the sRGB specification (see the * the actual sRGB transfer curve defined in the sRGB specification (see the
* article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 * article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
* approximation used elsewhere in libpng. * approximation used elsewhere in libpng.
* *
* When an alpha channel is present it is expected to denote pixel coverage * When an alpha channel is present it is expected to denote pixel coverage

2
pngrtran.c
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@ -2934,7 +2934,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
* using the equation given in Poynton's ColorFAQ of 1998-01-04 at * using the equation given in Poynton's ColorFAQ of 1998-01-04 at
* <http://www.inforamp.net/~poynton/> (THIS LINK IS DEAD June 2008 but * <http://www.inforamp.net/~poynton/> (THIS LINK IS DEAD June 2008 but
* versions dated 1998 through November 2002 have been archived at * versions dated 1998 through November 2002 have been archived at
* http://web.archive.org/web/20000816232553/http://www.inforamp.net/ * https://web.archive.org/web/20000816232553/www.inforamp.net/
* ~poynton/notes/colour_and_gamma/ColorFAQ.txt ) * ~poynton/notes/colour_and_gamma/ColorFAQ.txt )
* Charles Poynton poynton at poynton.com * Charles Poynton poynton at poynton.com
* *

2
projects/owatcom/pngconfig.mak
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@ -126,7 +126,7 @@ $# to work, download Brian Kernighan's awk (Brian Kernighan is the author of
$# awk.) You can find source code and a built executable (called awk95.exe) $# awk.) You can find source code and a built executable (called awk95.exe)
$# here: $# here:
$# $#
$# http://www.cs.princeton.edu/~bwk/btl.mirror/ $# https://www.cs.princeton.edu/~bwk/btl.mirror/
$# $#
$# The executable works just fine. $# The executable works just fine.
$# $#