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3rdparty/libpng: Update to 1.6.40

This commit is contained in:
Stenzek 2023-10-02 15:20:20 +10:00 committed by Connor McLaughlin
parent 175d10c5d1
commit fe0d31ae94
133 changed files with 7856 additions and 28225 deletions
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@ -14,8 +14,11 @@ add_library(png
pngwrite.c pngwrite.c
pngwtran.c pngwtran.c
pngwutil.c pngwutil.c
intel/filter_sse2_intrinsics.c
intel/intel_init.c
) )
target_compile_definitions(png PRIVATE "PNG_INTEL_SSE")
target_link_libraries(png PRIVATE ZLIB::ZLIB) target_link_libraries(png PRIVATE ZLIB::ZLIB)
target_include_directories(png PUBLIC .) target_include_directories(png PUBLIC .)
add_library(PNG::PNG ALIAS png) add_library(PNG::PNG ALIAS png)

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Installing libpng
Contents
I. Simple installation
II. Rebuilding the configure scripts
III. Using scripts/makefile*
IV. Using cmake
V. Directory structure
VI. Building with project files
VII. Building with makefiles
VIII. Configuring libpng for 16-bit platforms
IX. Configuring for DOS
X. Configuring for Medium Model
XI. Prepending a prefix to exported symbols
XII. Configuring for compiler xxx:
XIII. Removing unwanted object code
XIV. Changes to the build and configuration of libpng in libpng-1.5.x
XV. Setjmp/longjmp issues
XVI. Other sources of information about libpng
I. Simple installation
On Unix/Linux and similar systems, you can simply type
./configure [--prefix=/path]
make check
make install
and ignore the rest of this document. "/path" is the path to the directory
where you want to install the libpng "lib", "include", and "bin"
subdirectories.
If you downloaded a GIT clone, you will need to run ./autogen.sh before
running ./configure, to create "configure" and "Makefile.in" which are
not included in the GIT repository.
Note that "configure" is only included in the "*.tar" distributions and not
in the "*.zip" or "*.7z" distributions. If you downloaded one of those
distributions, see "Building with project files" or "Building with makefiles",
below.
II. Rebuilding the configure scripts
If configure does not work on your system, or if you have a need to
change configure.ac or Makefile.am, and you have a reasonably
up-to-date set of tools, running ./autogen.sh in a git clone before
running ./configure may fix the problem. To be really sure that you
aren't using any of the included pre-built scripts, you can do this:
./configure --enable-maintainer-mode
make maintainer-clean
./autogen.sh --maintainer --clean
./autogen.sh --maintainer
./configure [--prefix=/path] [other options]
make
make install
make check
III. Using scripts/makefile*
Instead, you can use one of the custom-built makefiles in the
"scripts" directory
cp scripts/pnglibconf.h.prebuilt pnglibconf.h
cp scripts/makefile.system makefile
make test
make install
The files that are presently available in the scripts directory
are listed and described in scripts/README.txt.
Or you can use one of the "projects" in the "projects" directory.
Before installing libpng, you must first install zlib, if it
is not already on your system. zlib can usually be found
wherever you got libpng; otherwise go to http://zlib.net. You can place
zlib in in the same directory as libpng or in another directory.
If your system already has a preinstalled zlib you will still need
to have access to the zlib.h and zconf.h include files that
correspond to the version of zlib that's installed.
If you wish to test with a particular zlib that is not first in the
standard library search path, put ZLIBLIB, ZLIBINC, CPPFLAGS, LDFLAGS,
and LD_LIBRARY_PATH in your environment before running "make test"
or "make distcheck":
ZLIBLIB=/path/to/lib export ZLIBLIB
ZLIBINC=/path/to/include export ZLIBINC
CPPFLAGS="-I$ZLIBINC" export CPPFLAGS
LDFLAGS="-L$ZLIBLIB" export LDFLAGS
LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH
If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC
in your environment and type "make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test".
IV. Using cmake
If you want to use "cmake" (see www.cmake.org), type
cmake . -DCMAKE_INSTALL_PREFIX=/path
make
make install
As when using the simple configure method described above, "/path" points to
the installation directory where you want to put the libpng "lib", "include",
and "bin" subdirectories.
V. Directory structure
You can rename the directories that you downloaded (they
might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.8"
or "zlib128") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:
.. (the parent directory)
libpng (this directory)
INSTALL (this file)
README
*.h, *.c => libpng source files
CMakeLists.txt => "cmake" script
configuration files:
configure.ac, configure, Makefile.am, Makefile.in,
autogen.sh, config.guess, ltmain.sh, missing, libpng.pc.in,
libpng-config.in, aclocal.m4, config.h.in, config.sub,
depcomp, install-sh, mkinstalldirs, test-pngtest.sh
contrib
arm-neon, conftest, examples, gregbook, libtests, pngminim,
pngminus, pngsuite, tools, visupng
projects
cbuilder5, owatcom, visualc71, vstudio, xcode
scripts
makefile.*
*.def (module definition files)
etc.
pngtest.png
etc.
zlib
README, *.h, *.c contrib, etc.
If the line endings in the files look funny, you may wish to get the other
distribution of libpng. It is available in both tar.gz (UNIX style line
endings) and zip (DOS style line endings) formats.
VI. Building with project files
If you are building libpng with MSVC, you can enter the
libpng projects\visualc71 or vstudio directory and follow the instructions
in README.txt.
Otherwise enter the zlib directory and follow the instructions in zlib/README,
then come back here and run "configure" or choose the appropriate
makefile.sys in the scripts directory.
VII. Building with makefiles
Copy the file (or files) that you need from the
scripts directory into this directory, for example
MSDOS example: copy scripts\makefile.msc makefile
copy scripts\pnglibconf.h.prebuilt pnglibconf.h
UNIX example: cp scripts/makefile.std makefile
cp scripts/pnglibconf.h.prebuilt pnglibconf.h
Read the makefile to see if you need to change any source or
target directories to match your preferences.
Then read pnglibconf.dfa to see if you want to make any configuration
changes.
Then just run "make" which will create the libpng library in
this directory and "make test" which will run a quick test that reads
the "pngtest.png" file and writes a "pngout.png" file that should be
identical to it. Look for "9782 zero samples" in the output of the
test. For more confidence, you can run another test by typing
"pngtest pngnow.png" and looking for "289 zero samples" in the output.
Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
your output with the result shown in contrib/pngsuite/README.
Most of the makefiles will allow you to run "make install" to
put the library in its final resting place (if you want to
do that, run "make install" in the zlib directory first if necessary).
Some also allow you to run "make test-installed" after you have
run "make install".
VIII. Configuring libpng for 16-bit platforms
You will want to look into zconf.h to tell zlib (and thus libpng) that
it cannot allocate more than 64K at a time. Even if you can, the memory
won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K.
IX. Configuring for DOS
For DOS users who only have access to the lower 640K, you will
have to limit zlib's memory usage via a png_set_compression_mem_level()
call. See zlib.h or zconf.h in the zlib library for more information.
X. Configuring for Medium Model
Libpng's support for medium model has been tested on most of the popular
compilers. Make sure MAXSEG_64K gets defined, USE_FAR_KEYWORD gets
defined, and FAR gets defined to far in pngconf.h, and you should be
all set. Everything in the library (except for zlib's structure) is
expecting far data. You must use the typedefs with the p or pp on
the end for pointers (or at least look at them and be careful). Make
note that the rows of data are defined as png_bytepp, which is
an "unsigned char far * far *".
XI. Prepending a prefix to exported symbols
Starting with libpng-1.6.0, you can configure libpng (when using the
"configure" script) to prefix all exported symbols by means of the
configuration option "--with-libpng-prefix=FOO_", where FOO_ can be any
string beginning with a letter and containing only uppercase
and lowercase letters, digits, and the underscore (i.e., a C language
identifier). This creates a set of macros in pnglibconf.h, so this is
transparent to applications; their function calls get transformed by
the macros to use the modified names.
XII. Configuring for compiler xxx:
All includes for libpng are in pngconf.h. If you need to add, change
or delete an include, this is the place to do it.
The includes that are not needed outside libpng are placed in pngpriv.h,
which is only used by the routines inside libpng itself.
The files in libpng proper only include pngpriv.h and png.h, which
in turn includes pngconf.h and, as of libpng-1.5.0, pnglibconf.h.
As of libpng-1.5.0, pngpriv.h also includes three other private header
files, pngstruct.h, pnginfo.h, and pngdebug.h, which contain material
that previously appeared in the public headers.
XIII. Removing unwanted object code
There are a bunch of #define's in pngconf.h that control what parts of
libpng are compiled. All the defines end in _SUPPORTED. If you are
never going to use a capability, you can change the #define to #undef
before recompiling libpng and save yourself code and data space, or
you can turn off individual capabilities with defines that begin with
PNG_NO_.
In libpng-1.5.0 and later, the #define's are in pnglibconf.h instead.
You can also turn all of the transforms and ancillary chunk capabilities
off en masse with compiler directives that define
PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS,
or all four, along with directives to turn on any of the capabilities that
you do want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable the
extra transformations but still leave the library fully capable of reading
and writing PNG files with all known public chunks. Use of the
PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive produces a library
that is incapable of reading or writing ancillary chunks. If you are
not using the progressive reading capability, you can turn that off
with PNG_NO_PROGRESSIVE_READ (don't confuse this with the INTERLACING
capability, which you'll still have).
All the reading and writing specific code are in separate files, so the
linker should only grab the files it needs. However, if you want to
make sure, or if you are building a stand alone library, all the
reading files start with "pngr" and all the writing files start with "pngw".
The files that don't match either (like png.c, pngtrans.c, etc.)
are used for both reading and writing, and always need to be included.
The progressive reader is in pngpread.c
If you are creating or distributing a dynamically linked library (a .so
or DLL file), you should not remove or disable any parts of the library,
as this will cause applications linked with different versions of the
library to fail if they call functions not available in your library.
The size of the library itself should not be an issue, because only
those sections that are actually used will be loaded into memory.
XIV. Changes to the build and configuration of libpng in libpng-1.5.x
Details of internal changes to the library code can be found in the CHANGES
file and in the GIT repository logs. These will be of no concern to the vast
majority of library users or builders; however, the few who configure libpng
to a non-default feature set may need to change how this is done.
There should be no need for library builders to alter build scripts if
these use the distributed build support - configure or the makefiles -
however, users of the makefiles may care to update their build scripts
to build pnglibconf.h where the corresponding makefile does not do so.
Building libpng with a non-default configuration has changed completely.
The old method using pngusr.h should still work correctly even though the
way pngusr.h is used in the build has been changed; however, library
builders will probably want to examine the changes to take advantage of
new capabilities and to simplify their build system.
A. Specific changes to library configuration capabilities
The exact mechanism used to control attributes of API functions has
changed. A single set of operating system independent macro definitions
is used and operating system specific directives are defined in
pnglibconf.h
As part of this the mechanism used to choose procedure call standards on
those systems that allow a choice has been changed. At present this only
affects certain Microsoft (DOS, Windows) and IBM (OS/2) operating systems
running on Intel processors. As before, PNGAPI is defined where required
to control the exported API functions; however, two new macros, PNGCBAPI
and PNGCAPI, are used instead for callback functions (PNGCBAPI) and
(PNGCAPI) for functions that must match a C library prototype (currently
only png_longjmp_ptr, which must match the C longjmp function.) The new
approach is documented in pngconf.h
Despite these changes, libpng 1.5.0 only supports the native C function
calling standard on those platforms tested so far (__cdecl on Microsoft
Windows). This is because the support requirements for alternative
calling conventions seem to no longer exist. Developers who find it
necessary to set PNG_API_RULE to 1 should advise the mailing list
(png-mng-implement) of this and library builders who use Openwatcom and
therefore set PNG_API_RULE to 2 should also contact the mailing list.
B. Changes to the configuration mechanism
Prior to libpng-1.5.0 library builders who needed to configure libpng
had either to modify the exported pngconf.h header file to add system
specific configuration or had to write feature selection macros into
pngusr.h and cause this to be included into pngconf.h by defining
PNG_USER_CONFIG. The latter mechanism had the disadvantage that an
application built without PNG_USER_CONFIG defined would see the
unmodified, default, libpng API and thus would probably fail to link.
These mechanisms still work in the configure build and in any makefile
build that builds pnglibconf.h, although the feature selection macros
have changed somewhat as described above. In 1.5.0, however, pngusr.h is
processed only once, at the time the exported header file pnglibconf.h is
built. pngconf.h no longer includes pngusr.h; therefore, pngusr.h is ignored
after the build of pnglibconf.h and it is never included in an application
build.
The formerly used alternative of adding a list of feature macros to the
CPPFLAGS setting in the build also still works; however, the macros will be
copied to pnglibconf.h and this may produce macro redefinition warnings
when the individual C files are compiled.
All configuration now only works if pnglibconf.h is built from
scripts/pnglibconf.dfa. This requires the program awk. Brian Kernighan
(the original author of awk) maintains C source code of that awk and this
and all known later implementations (often called by subtly different
names - nawk and gawk for example) are adequate to build pnglibconf.h.
The Sun Microsystems (now Oracle) program 'awk' is an earlier version
and does not work; this may also apply to other systems that have a
functioning awk called 'nawk'.
Configuration options are now documented in scripts/pnglibconf.dfa. This
file also includes dependency information that ensures a configuration is
consistent; that is, if a feature is switched off, dependent features are
also switched off. As a recommended alternative to using feature macros in
pngusr.h a system builder may also define equivalent options in pngusr.dfa
(or, indeed, any file) and add that to the configuration by setting
DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate
how to do this, and also illustrate a case where pngusr.h is still required.
After you have built libpng, the definitions that were recorded in
pnglibconf.h are available to your application (pnglibconf.h is included
in png.h and gets installed alongside png.h and pngconf.h in your
$PREFIX/include directory). Do not edit pnglibconf.h after you have built
libpng, because than the settings would not accurately reflect the settings
that were used to build libpng.
XV. Setjmp/longjmp issues
Libpng uses setjmp()/longjmp() for error handling. Unfortunately setjmp()
is known to be not thread-safe on some platforms and we don't know of
any platform where it is guaranteed to be thread-safe. Therefore, if
your application is going to be using multiple threads, you should
configure libpng with PNG_NO_SETJMP in your pngusr.dfa file, with
-DPNG_NO_SETJMP on your compile line, or with
#undef PNG_SETJMP_SUPPORTED
in your pnglibconf.h or pngusr.h.
Starting with libpng-1.6.0, the library included a "simplified API".
This requires setjmp/longjmp, so you must either build the library
with PNG_SETJMP_SUPPORTED defined, or with PNG_SIMPLIFIED_READ_SUPPORTED
and PNG_SIMPLIFIED_WRITE_SUPPORTED undefined.
XVI. Other sources of information about libpng:
Further information can be found in the README and libpng-manual.txt
files, in the individual makefiles, in png.h, and the manual pages
libpng.3 and png.5.

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This copy of the libpng notices is provided for your convenience. In case of
any discrepancy between this copy and the notices in the file png.h that is
included in the libpng distribution, the latter shall prevail.
COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following
this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.6.17, March 26, 2015, are
Copyright (c) 2004, 2006-2015 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors
Simon-Pierre Cadieux
Eric S. Raymond
Gilles Vollant
and with the following additions to the disclaimer:
There is no warranty against interference with your enjoyment of the
library or against infringement. There is no warranty that our
efforts or the library will fulfill any of your particular purposes
or needs. This library is provided with all faults, and the entire
risk of satisfactory quality, performance, accuracy, and effort is with
the user.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-0.96,
with the following individuals added to the list of Contributing Authors:
Tom Lane
Glenn Randers-Pehrson
Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May 1997, are
Copyright (c) 1996, 1997 Andreas Dilger
Distributed according to the same disclaimer and license as libpng-0.88,
with the following individuals added to the list of Contributing Authors:
John Bowler
Kevin Bracey
Sam Bushell
Magnus Holmgren
Greg Roelofs
Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January 1996, are
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals:
Andreas Dilger
Dave Martindale
Guy Eric Schalnat
Paul Schmidt
Tim Wegner
The PNG Reference Library is supplied "AS IS". The Contributing Authors
and Group 42, Inc. disclaim all warranties, expressed or implied,
including, without limitation, the warranties of merchantability and of
fitness for any purpose. The Contributing Authors and Group 42, Inc.
assume no liability for direct, indirect, incidental, special, exemplary,
or consequential damages, which may result from the use of the PNG
Reference Library, even if advised of the possibility of such damage.
Permission is hereby granted to use, copy, modify, and distribute this
source code, or portions hereof, for any purpose, without fee, subject
to the following restrictions:
1. The origin of this source code must not be misrepresented.
2. Altered versions must be plainly marked as such and must not
be misrepresented as being the original source.
3. This Copyright notice may not be removed or altered from any
source or altered source distribution.
The Contributing Authors and Group 42, Inc. specifically permit, without
fee, and encourage the use of this source code as a component to
supporting the PNG file format in commercial products. If you use this
source code in a product, acknowledgment is not required but would be
appreciated.
A "png_get_copyright" function is available, for convenient use in "about"
boxes and the like:
printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
March 26, 2015

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README for libpng version 1.6.17 - March 26, 2015 (shared library 16.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
Libpng comes in several distribution formats. Get libpng-*.tar.gz or
libpng-*.tar.xz or if you want UNIX-style line endings in the text files,
or lpng*.7z or lpng*.zip if you want DOS-style line endings.
Version 0.89 was the first official release of libpng. Don't let the
fact that it's the first release fool you. The libpng library has been in
extensive use and testing since mid-1995. By late 1997 it had
finally gotten to the stage where there hadn't been significant
changes to the API in some time, and people have a bad feeling about
libraries with versions < 1.0. Version 1.0.0 was released in
March 1998.
****
Note that some of the changes to the png_info structure render this
version of the library binary incompatible with libpng-0.89 or
earlier versions if you are using a shared library. The type of the
"filler" parameter for png_set_filler() has changed from png_byte to
png_uint_32, which will affect shared-library applications that use
this function.
To avoid problems with changes to the internals of png info_struct,
new APIs have been made available in 0.95 to avoid direct application
access to info_ptr. These functions are the png_set_<chunk> and
png_get_<chunk> functions. These functions should be used when
accessing/storing the info_struct data, rather than manipulating it
directly, to avoid such problems in the future.
It is important to note that the APIs did not make current programs
that access the info struct directly incompatible with the new
library, through libpng-1.2.x. In libpng-1.4.x, which was meant to
be a transitional release, members of the png_struct and the
info_struct can still be accessed, but the compiler will issue a
warning about deprecated usage. Since libpng-1.5.0, direct access
to these structs is not allowed, and the definitions of the structs
reside in private pngstruct.h and pnginfo.h header files that are not
accessible to applications. It is strongly suggested that new
programs use the new APIs (as shown in example.c and pngtest.c), and
older programs be converted to the new format, to facilitate upgrades
in the future.
****
Additions since 0.90 include the ability to compile libpng as a
Windows DLL, and new APIs for accessing data in the info struct.
Experimental functions include the ability to set weighting and cost
factors for row filter selection, direct reads of integers from buffers
on big-endian processors that support misaligned data access, faster
methods of doing alpha composition, and more accurate 16->8 bit color
conversion.
The additions since 0.89 include the ability to read from a PNG stream
which has had some (or all) of the signature bytes read by the calling
application. This also allows the reading of embedded PNG streams that
do not have the PNG file signature. As well, it is now possible to set
the library action on the detection of chunk CRC errors. It is possible
to set different actions based on whether the CRC error occurred in a
critical or an ancillary chunk.
The changes made to the library, and bugs fixed are based on discussions
on the PNG-implement mailing list and not on material submitted
privately to Guy, Andreas, or Glenn. They will forward any good
suggestions to the list.
For a detailed description on using libpng, read libpng-manual.txt. For
examples of libpng in a program, see example.c and pngtest.c. For usage
information and restrictions (what little they are) on libpng, see
png.h. For a description on using zlib (the compression library used by
libpng) and zlib's restrictions, see zlib.h
I have included a general makefile, as well as several machine and
compiler specific ones, but you may have to modify one for your own needs.
You should use zlib 1.0.4 or later to run this, but it MAY work with
versions as old as zlib 0.95. Even so, there are bugs in older zlib
versions which can cause the output of invalid compression streams for
some images. You will definitely need zlib 1.0.4 or later if you are
taking advantage of the MS-DOS "far" structure allocation for the small
and medium memory models. You should also note that zlib is a
compression library that is useful for more things than just PNG files.
You can use zlib as a drop-in replacement for fread() and fwrite() if
you are so inclined.
zlib should be available at the same place that libpng is, or at zlib.net.
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
these at http://www.libpng.org/pub/png/documents/
This code is currently being archived at libpng.sf.net in the
[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.
I am not a lawyer, but I believe that the Export Control Classification
Number (ECCN) for libpng is EAR99, which means not subject to export
controls or International Traffic in Arms Regulations (ITAR) because it
is open source, publicly available software, that does not contain any
encryption software. See the EAR, paragraphs 734.3(b)(3) and 734.7(b).
If you have any code changes, requests, problems, etc., please e-mail
them to me. Also, I'd appreciate any make files or project files,
and any modifications you needed to make to get libpng to compile,
along with a #define variable to tell what compiler/system you are on.
If you needed to add transformations to libpng, or wish libpng would
provide the image in a different way, drop me a note (and code, if
possible), so I can consider supporting the transformation.
Finally, if you get any warning messages when compiling libpng
(note: not zlib), and they are easy to fix, I'd appreciate the
fix. Please mention "libpng" somewhere in the subject line. Thanks.
This release was created and will be supported by myself (of course
based in a large way on Guy's and Andreas' earlier work), and the PNG
development group.
Send comments/corrections/commendations to png-mng-implement at
lists.sourceforge.net (subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
to subscribe) or to glennrp at users.sourceforge.net
You can't reach Guy, the original libpng author, at the addresses
given in previous versions of this document. He and Andreas will
read mail addressed to the png-implement list, however.
Please do not send general questions about PNG. Send them to
png-mng-misc at lists.sf.net (subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-misc to
subscribe). If you have a question about something
in the PNG specification that is related to using libpng, send it
to me. Send me any questions that start with "I was using libpng,
and ...". If in doubt, send questions to me. I'll bounce them
to others, if necessary.
Please do not send suggestions on how to change PNG. We have
been discussing PNG for nineteen years now, and it is official and
finished. If you have suggestions for libpng, however, I'll
gladly listen. Even if your suggestion is not used immediately,
it may be used later.
Files in this distribution:
ANNOUNCE => Announcement of this version, with recent changes
CHANGES => Description of changes between libpng versions
KNOWNBUG => List of known bugs and deficiencies
LICENSE => License to use and redistribute libpng
README => This file
TODO => Things not implemented in the current library
Y2KINFO => Statement of Y2K compliance
example.c => Example code for using libpng functions
libpng.3 => manual page for libpng (includes libpng-manual.txt)
libpng-manual.txt => Description of libpng and its functions
libpngpf.3 => manual page for libpng's private functions
png.5 => manual page for the PNG format
png.c => Basic interface functions common to library
png.h => Library function and interface declarations (public)
pngpriv.h => Library function and interface declarations (private)
pngconf.h => System specific library configuration (public)
pngstruct.h => png_struct declaration (private)
pnginfo.h => png_info struct declaration (private)
pngdebug.h => debugging macros (private)
pngerror.c => Error/warning message I/O functions
pngget.c => Functions for retrieving info from struct
pngmem.c => Memory handling functions
pngbar.png => PNG logo, 88x31
pngnow.png => PNG logo, 98x31
pngpread.c => Progressive reading functions
pngread.c => Read data/helper high-level functions
pngrio.c => Lowest-level data read I/O functions
pngrtran.c => Read data transformation functions
pngrutil.c => Read data utility functions
pngset.c => Functions for storing data into the info_struct
pngtest.c => Library test program
pngtest.png => Library test sample image
pngtrans.c => Common data transformation functions
pngwio.c => Lowest-level write I/O functions
pngwrite.c => High-level write functions
pngwtran.c => Write data transformations
pngwutil.c => Write utility functions
arm => Contains optimized code for the ARM platform
contrib => Contributions
examples => Example programs
gregbook => source code for PNG reading and writing, from
Greg Roelofs' "PNG: The Definitive Guide",
O'Reilly, 1999
libtests => Test programs
pngminim => Minimal decoder, encoder, and progressive decoder
programs demonstrating use of pngusr.dfa
pngminus => Simple pnm2png and png2pnm programs
pngsuite => Test images
tools => Various tools
visupng => Contains a MSVC workspace for VisualPng
projects => Contains project files and workspaces for
building a DLL
owatcom => Contains a WATCOM project for building libpng
visualc71 => Contains a Microsoft Visual C++ (MSVC)
workspace for building libpng and zlib
vstudio => Contains a Microsoft Visual C++ (MSVC)
workspace for building libpng and zlib
scripts => Directory containing scripts for building libpng:
(see scripts/README.txt for the list of scripts)
Good luck, and happy coding.
-Glenn Randers-Pehrson (current maintainer, since 1998)
Internet: glennrp at users.sourceforge.net
-Andreas Eric Dilger (former maintainer, 1996-1997)
Internet: adilger at enel.ucalgary.ca
Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/
-Guy Eric Schalnat (original author and former maintainer, 1995-1996)
(formerly of Group 42, Inc)
Internet: gschal at infinet.com

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/*
TODO - list of things to do for libpng:
Final bug fixes.
Better C++ wrapper/full C++ implementation?
Fix problem with C++ and EXTERN "C".
cHRM transformation.
Remove setjmp/longjmp usage in favor of returning error codes.
Palette creation.
Add "grayscale->palette" transformation and "palette->grayscale" detection.
Improved dithering.
Multi-lingual error and warning message support.
Complete sRGB transformation (presently it simply uses gamma=0.45455).
Make profile checking optional via a png_set_something() call.
Man pages for function calls.
Better documentation.
Better filter selection
(counting huffman bits/precompression? filter inertia? filter costs?).
Histogram creation.
Text conversion between different code pages (Latin-1 -> Mac and DOS).
Avoid building gamma tables whenever possible.
Use greater precision when changing to linear gamma for compositing against
background and doing rgb-to-gray transformation.
Investigate pre-incremented loop counters and other loop constructions.
Add interpolated method of handling interlacing.
Switch to the simpler zlib (zlib/libpng) license if legally possible.
Extend pngvalid.c to validate more of the libpng transformations.
*/

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/* arm_init.c - NEON optimised filter functions
*
* Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 2014,2016 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
/* This module requires POSIX 1003.1 functions. */
#define _POSIX_SOURCE 1
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
#if PNG_ARM_NEON_OPT > 0
#ifdef PNG_ARM_NEON_CHECK_SUPPORTED /* Do run-time checks */
/* WARNING: it is strongly recommended that you do not build libpng with
* run-time checks for CPU features if at all possible. In the case of the ARM
* NEON instructions there is no processor-specific way of detecting the
* presence of the required support, therefore run-time detection is extremely
* OS specific.
*
* You may set the macro PNG_ARM_NEON_FILE to the file name of file containing
* a fragment of C source code which defines the png_have_neon function. There
* are a number of implementations in contrib/arm-neon, but the only one that
* has partial support is contrib/arm-neon/linux.c - a generic Linux
* implementation which reads /proc/cpufino.
*/
#include <signal.h> /* for sig_atomic_t */
#ifndef PNG_ARM_NEON_FILE
# if defined(__aarch64__) || defined(_M_ARM64)
/* ARM Neon is expected to be unconditionally available on ARM64. */
# error "PNG_ARM_NEON_CHECK_SUPPORTED must not be defined on ARM64"
# elif defined(__ARM_NEON__) || defined(__ARM_NEON)
/* ARM Neon is expected to be available on the target CPU architecture. */
# error "PNG_ARM_NEON_CHECK_SUPPORTED must not be defined on this CPU arch"
# elif defined(__linux__)
# define PNG_ARM_NEON_FILE "contrib/arm-neon/linux.c"
# else
# error "No support for run-time ARM Neon checking; use compile-time options"
# endif
#endif
static int png_have_neon(png_structp png_ptr);
#ifdef PNG_ARM_NEON_FILE
# include PNG_ARM_NEON_FILE
#endif
#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
#ifndef PNG_ALIGNED_MEMORY_SUPPORTED
# error "ALIGNED_MEMORY is required; set: -DPNG_ALIGNED_MEMORY_SUPPORTED"
#endif
void
png_init_filter_functions_neon(png_structp pp, unsigned int bpp)
{
/* The switch statement is compiled in for ARM_NEON_API, the call to
* png_have_neon is compiled in for ARM_NEON_CHECK. If both are defined
* the check is only performed if the API has not set the NEON option on
* or off explicitly. In this case the check controls what happens.
*
* If the CHECK is not compiled in and the option is UNSET the behavior prior
* to 1.6.7 was to use the NEON code - this was a bug caused by having the
* wrong order of the 'ON' and 'default' cases. UNSET now defaults to OFF,
* as documented in png.h
*/
png_debug(1, "in png_init_filter_functions_neon");
#ifdef PNG_ARM_NEON_API_SUPPORTED
switch ((pp->options >> PNG_ARM_NEON) & 3)
{
case PNG_OPTION_UNSET:
/* Allow the run-time check to execute if it has been enabled -
* thus both API and CHECK can be turned on. If it isn't supported
* this case will fall through to the 'default' below, which just
* returns.
*/
#endif /* PNG_ARM_NEON_API_SUPPORTED */
#ifdef PNG_ARM_NEON_CHECK_SUPPORTED
{
static volatile sig_atomic_t no_neon = -1; /* not checked */
if (no_neon < 0)
no_neon = !png_have_neon(pp);
if (no_neon)
return;
}
#ifdef PNG_ARM_NEON_API_SUPPORTED
break;
#endif
#endif /* PNG_ARM_NEON_CHECK_SUPPORTED */
#ifdef PNG_ARM_NEON_API_SUPPORTED
default: /* OFF or INVALID */
return;
case PNG_OPTION_ON:
/* Option turned on */
break;
}
#endif
/* IMPORTANT: any new external functions used here must be declared using
* PNG_INTERNAL_FUNCTION in ../pngpriv.h. This is required so that the
* 'prefix' option to configure works:
*
* ./configure --with-libpng-prefix=foobar_
*
* Verify you have got this right by running the above command, doing a build
* and examining pngprefix.h; it must contain a #define for every external
* function you add. (Notice that this happens automatically for the
* initialization function.)
*/
pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up_neon;
if (bpp == 3)
{
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_neon;
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_neon;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
png_read_filter_row_paeth3_neon;
}
else if (bpp == 4)
{
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_neon;
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_neon;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
png_read_filter_row_paeth4_neon;
}
}
#endif /* PNG_ARM_NEON_OPT > 0 */
#endif /* READ */

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/* filter_neon.S - NEON optimised filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2014,2017 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
/* This is required to get the symbol renames, which are #defines, and the
* definitions (or not) of PNG_ARM_NEON_OPT and PNG_ARM_NEON_IMPLEMENTATION.
*/
#define PNG_VERSION_INFO_ONLY
#include "../pngpriv.h"
#if (defined(__linux__) || defined(__FreeBSD__)) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
#endif
#ifdef PNG_READ_SUPPORTED
/* Assembler NEON support - only works for 32-bit ARM (i.e. it does not work for
* ARM64). The code in arm/filter_neon_intrinsics.c supports ARM64, however it
* only works if -mfpu=neon is specified on the GCC command line. See pngpriv.h
* for the logic which sets PNG_USE_ARM_NEON_ASM:
*/
#if PNG_ARM_NEON_IMPLEMENTATION == 2 /* hand-coded assembler */
#if PNG_ARM_NEON_OPT > 0
#ifdef __ELF__
# define ELF
#else
# define ELF @
#endif
.arch armv7-a
.fpu neon
.macro func name, export=0
.macro endfunc
ELF .size \name, . - \name
.endfunc
.purgem endfunc
.endm
.text
/* Explicitly specifying alignment here because some versions of
* GAS don't align code correctly. This is harmless in correctly
* written versions of GAS.
*/
.align 2
.if \export
.global \name
.endif
ELF .type \name, STT_FUNC
.func \name
\name:
.endm
func png_read_filter_row_sub4_neon, export=1
ldr r3, [r0, #4] @ rowbytes
vmov.i8 d3, #0
1:
vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
vadd.u8 d0, d3, d4
vadd.u8 d1, d0, d5
vadd.u8 d2, d1, d6
vadd.u8 d3, d2, d7
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
subs r3, r3, #16
bgt 1b
bx lr
endfunc
func png_read_filter_row_sub3_neon, export=1
ldr r3, [r0, #4] @ rowbytes
vmov.i8 d3, #0
mov r0, r1
mov r2, #3
mov r12, #12
vld1.8 {q11}, [r0], r12
1:
vext.8 d5, d22, d23, #3
vadd.u8 d0, d3, d22
vext.8 d6, d22, d23, #6
vadd.u8 d1, d0, d5
vext.8 d7, d23, d23, #1
vld1.8 {q11}, [r0], r12
vst1.32 {d0[0]}, [r1,:32], r2
vadd.u8 d2, d1, d6
vst1.32 {d1[0]}, [r1], r2
vadd.u8 d3, d2, d7
vst1.32 {d2[0]}, [r1], r2
vst1.32 {d3[0]}, [r1], r2
subs r3, r3, #12
bgt 1b
bx lr
endfunc
func png_read_filter_row_up_neon, export=1
ldr r3, [r0, #4] @ rowbytes
1:
vld1.8 {q0}, [r1,:128]
vld1.8 {q1}, [r2,:128]!
vadd.u8 q0, q0, q1
vst1.8 {q0}, [r1,:128]!
subs r3, r3, #16
bgt 1b
bx lr
endfunc
func png_read_filter_row_avg4_neon, export=1
ldr r12, [r0, #4] @ rowbytes
vmov.i8 d3, #0
1:
vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
vld4.32 {d16[],d17[],d18[],d19[]},[r2,:128]!
vhadd.u8 d0, d3, d16
vadd.u8 d0, d0, d4
vhadd.u8 d1, d0, d17
vadd.u8 d1, d1, d5
vhadd.u8 d2, d1, d18
vadd.u8 d2, d2, d6
vhadd.u8 d3, d2, d19
vadd.u8 d3, d3, d7
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
subs r12, r12, #16
bgt 1b
bx lr
endfunc
func png_read_filter_row_avg3_neon, export=1
push {r4,lr}
ldr r12, [r0, #4] @ rowbytes
vmov.i8 d3, #0
mov r0, r1
mov r4, #3
mov lr, #12
vld1.8 {q11}, [r0], lr
1:
vld1.8 {q10}, [r2], lr
vext.8 d5, d22, d23, #3
vhadd.u8 d0, d3, d20
vext.8 d17, d20, d21, #3
vadd.u8 d0, d0, d22
vext.8 d6, d22, d23, #6
vhadd.u8 d1, d0, d17
vext.8 d18, d20, d21, #6
vadd.u8 d1, d1, d5
vext.8 d7, d23, d23, #1
vld1.8 {q11}, [r0], lr
vst1.32 {d0[0]}, [r1,:32], r4
vhadd.u8 d2, d1, d18
vst1.32 {d1[0]}, [r1], r4
vext.8 d19, d21, d21, #1
vadd.u8 d2, d2, d6
vhadd.u8 d3, d2, d19
vst1.32 {d2[0]}, [r1], r4
vadd.u8 d3, d3, d7
vst1.32 {d3[0]}, [r1], r4
subs r12, r12, #12
bgt 1b
pop {r4,pc}
endfunc
.macro paeth rx, ra, rb, rc
vaddl.u8 q12, \ra, \rb @ a + b
vaddl.u8 q15, \rc, \rc @ 2*c
vabdl.u8 q13, \rb, \rc @ pa
vabdl.u8 q14, \ra, \rc @ pb
vabd.u16 q15, q12, q15 @ pc
vcle.u16 q12, q13, q14 @ pa <= pb
vcle.u16 q13, q13, q15 @ pa <= pc
vcle.u16 q14, q14, q15 @ pb <= pc
vand q12, q12, q13 @ pa <= pb && pa <= pc
vmovn.u16 d28, q14
vmovn.u16 \rx, q12
vbsl d28, \rb, \rc
vbsl \rx, \ra, d28
.endm
func png_read_filter_row_paeth4_neon, export=1
ldr r12, [r0, #4] @ rowbytes
vmov.i8 d3, #0
vmov.i8 d20, #0
1:
vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
vld4.32 {d16[],d17[],d18[],d19[]},[r2,:128]!
paeth d0, d3, d16, d20
vadd.u8 d0, d0, d4
paeth d1, d0, d17, d16
vadd.u8 d1, d1, d5
paeth d2, d1, d18, d17
vadd.u8 d2, d2, d6
paeth d3, d2, d19, d18
vmov d20, d19
vadd.u8 d3, d3, d7
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
subs r12, r12, #16
bgt 1b
bx lr
endfunc
func png_read_filter_row_paeth3_neon, export=1
push {r4,lr}
ldr r12, [r0, #4] @ rowbytes
vmov.i8 d3, #0
vmov.i8 d4, #0
mov r0, r1
mov r4, #3
mov lr, #12
vld1.8 {q11}, [r0], lr
1:
vld1.8 {q10}, [r2], lr
paeth d0, d3, d20, d4
vext.8 d5, d22, d23, #3
vadd.u8 d0, d0, d22
vext.8 d17, d20, d21, #3
paeth d1, d0, d17, d20
vst1.32 {d0[0]}, [r1,:32], r4
vext.8 d6, d22, d23, #6
vadd.u8 d1, d1, d5
vext.8 d18, d20, d21, #6
paeth d2, d1, d18, d17
vext.8 d7, d23, d23, #1
vld1.8 {q11}, [r0], lr
vst1.32 {d1[0]}, [r1], r4
vadd.u8 d2, d2, d6
vext.8 d19, d21, d21, #1
paeth d3, d2, d19, d18
vst1.32 {d2[0]}, [r1], r4
vmov d4, d19
vadd.u8 d3, d3, d7
vst1.32 {d3[0]}, [r1], r4
subs r12, r12, #12
bgt 1b
pop {r4,pc}
endfunc
#endif /* PNG_ARM_NEON_OPT > 0 */
#endif /* PNG_ARM_NEON_IMPLEMENTATION == 2 (assembler) */
#endif /* READ */

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/* filter_neon_intrinsics.c - NEON optimised filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2014,2016 Glenn Randers-Pehrson
* Written by James Yu <james.yu at linaro.org>, October 2013.
* Based on filter_neon.S, written by Mans Rullgard, 2011.
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
/* This code requires -mfpu=neon on the command line: */
#if PNG_ARM_NEON_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
#if defined(_MSC_VER) && !defined(__clang__) && defined(_M_ARM64)
# include <arm64_neon.h>
#else
# include <arm_neon.h>
#endif
/* libpng row pointers are not necessarily aligned to any particular boundary,
* however this code will only work with appropriate alignment. arm/arm_init.c
* checks for this (and will not compile unless it is done). This code uses
* variants of png_aligncast to avoid compiler warnings.
*/
#define png_ptr(type,pointer) png_aligncast(type *,pointer)
#define png_ptrc(type,pointer) png_aligncastconst(const type *,pointer)
/* The following relies on a variable 'temp_pointer' being declared with type
* 'type'. This is written this way just to hide the GCC strict aliasing
* warning; note that the code is safe because there never is an alias between
* the input and output pointers.
*
* When compiling with MSVC ARM64, the png_ldr macro can't be passed directly
* to vst4_lane_u32, because of an internal compiler error inside MSVC.
* To avoid this compiler bug, we use a temporary variable (vdest_val) to store
* the result of png_ldr.
*/
#define png_ldr(type,pointer)\
(temp_pointer = png_ptr(type,pointer), *temp_pointer)
#if PNG_ARM_NEON_OPT > 0
void
png_read_filter_row_up_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_bytep rp_stop = row + row_info->rowbytes;
png_const_bytep pp = prev_row;
png_debug(1, "in png_read_filter_row_up_neon");
for (; rp < rp_stop; rp += 16, pp += 16)
{
uint8x16_t qrp, qpp;
qrp = vld1q_u8(rp);
qpp = vld1q_u8(pp);
qrp = vaddq_u8(qrp, qpp);
vst1q_u8(rp, qrp);
}
}
void
png_read_filter_row_sub3_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_bytep rp_stop = row + row_info->rowbytes;
uint8x16_t vtmp = vld1q_u8(rp);
uint8x8x2_t *vrpt = png_ptr(uint8x8x2_t, &vtmp);
uint8x8x2_t vrp = *vrpt;
uint8x8x4_t vdest;
vdest.val[3] = vdup_n_u8(0);
png_debug(1, "in png_read_filter_row_sub3_neon");
for (; rp < rp_stop;)
{
uint8x8_t vtmp1, vtmp2;
uint32x2_t *temp_pointer;
vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
vdest.val[0] = vadd_u8(vdest.val[3], vrp.val[0]);
vtmp2 = vext_u8(vrp.val[0], vrp.val[1], 6);
vdest.val[1] = vadd_u8(vdest.val[0], vtmp1);
vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
vdest.val[2] = vadd_u8(vdest.val[1], vtmp2);
vdest.val[3] = vadd_u8(vdest.val[2], vtmp1);
vtmp = vld1q_u8(rp + 12);
vrpt = png_ptr(uint8x8x2_t, &vtmp);
vrp = *vrpt;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
rp += 3;
}
PNG_UNUSED(prev_row)
}
void
png_read_filter_row_sub4_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_bytep rp_stop = row + row_info->rowbytes;
uint8x8x4_t vdest;
vdest.val[3] = vdup_n_u8(0);
png_debug(1, "in png_read_filter_row_sub4_neon");
for (; rp < rp_stop; rp += 16)
{
uint32x2x4_t vtmp = vld4_u32(png_ptr(uint32_t,rp));
uint8x8x4_t *vrpt = png_ptr(uint8x8x4_t,&vtmp);
uint8x8x4_t vrp = *vrpt;
uint32x2x4_t *temp_pointer;
uint32x2x4_t vdest_val;
vdest.val[0] = vadd_u8(vdest.val[3], vrp.val[0]);
vdest.val[1] = vadd_u8(vdest.val[0], vrp.val[1]);
vdest.val[2] = vadd_u8(vdest.val[1], vrp.val[2]);
vdest.val[3] = vadd_u8(vdest.val[2], vrp.val[3]);
vdest_val = png_ldr(uint32x2x4_t, &vdest);
vst4_lane_u32(png_ptr(uint32_t,rp), vdest_val, 0);
}
PNG_UNUSED(prev_row)
}
void
png_read_filter_row_avg3_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_const_bytep pp = prev_row;
png_bytep rp_stop = row + row_info->rowbytes;
uint8x16_t vtmp;
uint8x8x2_t *vrpt;
uint8x8x2_t vrp;
uint8x8x4_t vdest;
vdest.val[3] = vdup_n_u8(0);
vtmp = vld1q_u8(rp);
vrpt = png_ptr(uint8x8x2_t,&vtmp);
vrp = *vrpt;
png_debug(1, "in png_read_filter_row_avg3_neon");
for (; rp < rp_stop; pp += 12)
{
uint8x8_t vtmp1, vtmp2, vtmp3;
uint8x8x2_t *vppt;
uint8x8x2_t vpp;
uint32x2_t *temp_pointer;
vtmp = vld1q_u8(pp);
vppt = png_ptr(uint8x8x2_t,&vtmp);
vpp = *vppt;
vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
vdest.val[0] = vhadd_u8(vdest.val[3], vpp.val[0]);
vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 3);
vtmp3 = vext_u8(vrp.val[0], vrp.val[1], 6);
vdest.val[1] = vhadd_u8(vdest.val[0], vtmp2);
vdest.val[1] = vadd_u8(vdest.val[1], vtmp1);
vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 6);
vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
vtmp = vld1q_u8(rp + 12);
vrpt = png_ptr(uint8x8x2_t,&vtmp);
vrp = *vrpt;
vdest.val[2] = vhadd_u8(vdest.val[1], vtmp2);
vdest.val[2] = vadd_u8(vdest.val[2], vtmp3);
vtmp2 = vext_u8(vpp.val[1], vpp.val[1], 1);
vdest.val[3] = vhadd_u8(vdest.val[2], vtmp2);
vdest.val[3] = vadd_u8(vdest.val[3], vtmp1);
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
rp += 3;
}
}
void
png_read_filter_row_avg4_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_bytep rp_stop = row + row_info->rowbytes;
png_const_bytep pp = prev_row;
uint8x8x4_t vdest;
vdest.val[3] = vdup_n_u8(0);
png_debug(1, "in png_read_filter_row_avg4_neon");
for (; rp < rp_stop; rp += 16, pp += 16)
{
uint32x2x4_t vtmp;
uint8x8x4_t *vrpt, *vppt;
uint8x8x4_t vrp, vpp;
uint32x2x4_t *temp_pointer;
uint32x2x4_t vdest_val;
vtmp = vld4_u32(png_ptr(uint32_t,rp));
vrpt = png_ptr(uint8x8x4_t,&vtmp);
vrp = *vrpt;
vtmp = vld4_u32(png_ptrc(uint32_t,pp));
vppt = png_ptr(uint8x8x4_t,&vtmp);
vpp = *vppt;
vdest.val[0] = vhadd_u8(vdest.val[3], vpp.val[0]);
vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
vdest.val[1] = vhadd_u8(vdest.val[0], vpp.val[1]);
vdest.val[1] = vadd_u8(vdest.val[1], vrp.val[1]);
vdest.val[2] = vhadd_u8(vdest.val[1], vpp.val[2]);
vdest.val[2] = vadd_u8(vdest.val[2], vrp.val[2]);
vdest.val[3] = vhadd_u8(vdest.val[2], vpp.val[3]);
vdest.val[3] = vadd_u8(vdest.val[3], vrp.val[3]);
vdest_val = png_ldr(uint32x2x4_t, &vdest);
vst4_lane_u32(png_ptr(uint32_t,rp), vdest_val, 0);
}
}
static uint8x8_t
paeth(uint8x8_t a, uint8x8_t b, uint8x8_t c)
{
uint8x8_t d, e;
uint16x8_t p1, pa, pb, pc;
p1 = vaddl_u8(a, b); /* a + b */
pc = vaddl_u8(c, c); /* c * 2 */
pa = vabdl_u8(b, c); /* pa */
pb = vabdl_u8(a, c); /* pb */
pc = vabdq_u16(p1, pc); /* pc */
p1 = vcleq_u16(pa, pb); /* pa <= pb */
pa = vcleq_u16(pa, pc); /* pa <= pc */
pb = vcleq_u16(pb, pc); /* pb <= pc */
p1 = vandq_u16(p1, pa); /* pa <= pb && pa <= pc */
d = vmovn_u16(pb);
e = vmovn_u16(p1);
d = vbsl_u8(d, b, c);
e = vbsl_u8(e, a, d);
return e;
}
void
png_read_filter_row_paeth3_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_const_bytep pp = prev_row;
png_bytep rp_stop = row + row_info->rowbytes;
uint8x16_t vtmp;
uint8x8x2_t *vrpt;
uint8x8x2_t vrp;
uint8x8_t vlast = vdup_n_u8(0);
uint8x8x4_t vdest;
vdest.val[3] = vdup_n_u8(0);
vtmp = vld1q_u8(rp);
vrpt = png_ptr(uint8x8x2_t,&vtmp);
vrp = *vrpt;
png_debug(1, "in png_read_filter_row_paeth3_neon");
for (; rp < rp_stop; pp += 12)
{
uint8x8x2_t *vppt;
uint8x8x2_t vpp;
uint8x8_t vtmp1, vtmp2, vtmp3;
uint32x2_t *temp_pointer;
vtmp = vld1q_u8(pp);
vppt = png_ptr(uint8x8x2_t,&vtmp);
vpp = *vppt;
vdest.val[0] = paeth(vdest.val[3], vpp.val[0], vlast);
vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 3);
vtmp2 = vext_u8(vpp.val[0], vpp.val[1], 3);
vdest.val[1] = paeth(vdest.val[0], vtmp2, vpp.val[0]);
vdest.val[1] = vadd_u8(vdest.val[1], vtmp1);
vtmp1 = vext_u8(vrp.val[0], vrp.val[1], 6);
vtmp3 = vext_u8(vpp.val[0], vpp.val[1], 6);
vdest.val[2] = paeth(vdest.val[1], vtmp3, vtmp2);
vdest.val[2] = vadd_u8(vdest.val[2], vtmp1);
vtmp1 = vext_u8(vrp.val[1], vrp.val[1], 1);
vtmp2 = vext_u8(vpp.val[1], vpp.val[1], 1);
vtmp = vld1q_u8(rp + 12);
vrpt = png_ptr(uint8x8x2_t,&vtmp);
vrp = *vrpt;
vdest.val[3] = paeth(vdest.val[2], vtmp2, vtmp3);
vdest.val[3] = vadd_u8(vdest.val[3], vtmp1);
vlast = vtmp2;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[0]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[1]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[2]), 0);
rp += 3;
vst1_lane_u32(png_ptr(uint32_t,rp), png_ldr(uint32x2_t,&vdest.val[3]), 0);
rp += 3;
}
}
void
png_read_filter_row_paeth4_neon(png_row_infop row_info, png_bytep row,
png_const_bytep prev_row)
{
png_bytep rp = row;
png_bytep rp_stop = row + row_info->rowbytes;
png_const_bytep pp = prev_row;
uint8x8_t vlast = vdup_n_u8(0);
uint8x8x4_t vdest;
vdest.val[3] = vdup_n_u8(0);
png_debug(1, "in png_read_filter_row_paeth4_neon");
for (; rp < rp_stop; rp += 16, pp += 16)
{
uint32x2x4_t vtmp;
uint8x8x4_t *vrpt, *vppt;
uint8x8x4_t vrp, vpp;
uint32x2x4_t *temp_pointer;
uint32x2x4_t vdest_val;
vtmp = vld4_u32(png_ptr(uint32_t,rp));
vrpt = png_ptr(uint8x8x4_t,&vtmp);
vrp = *vrpt;
vtmp = vld4_u32(png_ptrc(uint32_t,pp));
vppt = png_ptr(uint8x8x4_t,&vtmp);
vpp = *vppt;
vdest.val[0] = paeth(vdest.val[3], vpp.val[0], vlast);
vdest.val[0] = vadd_u8(vdest.val[0], vrp.val[0]);
vdest.val[1] = paeth(vdest.val[0], vpp.val[1], vpp.val[0]);
vdest.val[1] = vadd_u8(vdest.val[1], vrp.val[1]);
vdest.val[2] = paeth(vdest.val[1], vpp.val[2], vpp.val[1]);
vdest.val[2] = vadd_u8(vdest.val[2], vrp.val[2]);
vdest.val[3] = paeth(vdest.val[2], vpp.val[3], vpp.val[2]);
vdest.val[3] = vadd_u8(vdest.val[3], vrp.val[3]);
vlast = vpp.val[3];
vdest_val = png_ldr(uint32x2x4_t, &vdest);
vst4_lane_u32(png_ptr(uint32_t,rp), vdest_val, 0);
}
}
#endif /* PNG_ARM_NEON_OPT > 0 */
#endif /* PNG_ARM_NEON_IMPLEMENTATION == 1 (intrinsics) */
#endif /* READ */

151
3rdparty/libpng/arm/palette_neon_intrinsics.c vendored Normal file
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/* palette_neon_intrinsics.c - NEON optimised palette expansion functions
*
* Copyright (c) 2018-2019 Cosmin Truta
* Copyright (c) 2017-2018 Arm Holdings. All rights reserved.
* Written by Richard Townsend <Richard.Townsend@arm.com>, February 2017.
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
#include "../pngpriv.h"
#if PNG_ARM_NEON_IMPLEMENTATION == 1
#if defined(_MSC_VER) && !defined(__clang__) && defined(_M_ARM64)
# include <arm64_neon.h>
#else
# include <arm_neon.h>
#endif
/* Build an RGBA8 palette from the separate RGB and alpha palettes. */
void
png_riffle_palette_neon(png_structrp png_ptr)
{
png_const_colorp palette = png_ptr->palette;
png_bytep riffled_palette = png_ptr->riffled_palette;
png_const_bytep trans_alpha = png_ptr->trans_alpha;
int num_trans = png_ptr->num_trans;
int i;
/* Initially black, opaque. */
uint8x16x4_t w = {{
vdupq_n_u8(0x00),
vdupq_n_u8(0x00),
vdupq_n_u8(0x00),
vdupq_n_u8(0xff),
}};
png_debug(1, "in png_riffle_palette_neon");
/* First, riffle the RGB colours into an RGBA8 palette.
* The alpha component is set to opaque for now.
*/
for (i = 0; i < 256; i += 16)
{
uint8x16x3_t v = vld3q_u8((png_const_bytep)(palette + i));
w.val[0] = v.val[0];
w.val[1] = v.val[1];
w.val[2] = v.val[2];
vst4q_u8(riffled_palette + (i << 2), w);
}
/* Fix up the missing transparency values. */
for (i = 0; i < num_trans; i++)
riffled_palette[(i << 2) + 3] = trans_alpha[i];
}
/* Expands a palettized row into RGBA8. */
int
png_do_expand_palette_rgba8_neon(png_structrp png_ptr, png_row_infop row_info,
png_const_bytep row, png_bytepp ssp, png_bytepp ddp)
{
png_uint_32 row_width = row_info->width;
const png_uint_32 *riffled_palette =
(const png_uint_32 *)png_ptr->riffled_palette;
const png_uint_32 pixels_per_chunk = 4;
png_uint_32 i;
png_debug(1, "in png_do_expand_palette_rgba8_neon");
PNG_UNUSED(row)
if (row_width < pixels_per_chunk)
return 0;
/* This function originally gets the last byte of the output row.
* The NEON part writes forward from a given position, so we have
* to seek this back by 4 pixels x 4 bytes.
*/
*ddp = *ddp - ((pixels_per_chunk * sizeof(png_uint_32)) - 1);
for (i = 0; i < row_width; i += pixels_per_chunk)
{
uint32x4_t cur;
png_bytep sp = *ssp - i, dp = *ddp - (i << 2);
cur = vld1q_dup_u32 (riffled_palette + *(sp - 3));
cur = vld1q_lane_u32(riffled_palette + *(sp - 2), cur, 1);
cur = vld1q_lane_u32(riffled_palette + *(sp - 1), cur, 2);
cur = vld1q_lane_u32(riffled_palette + *(sp - 0), cur, 3);
vst1q_u32((void *)dp, cur);
}
if (i != row_width)
{
/* Remove the amount that wasn't processed. */
i -= pixels_per_chunk;
}
/* Decrement output pointers. */
*ssp = *ssp - i;
*ddp = *ddp - (i << 2);
return i;
}
/* Expands a palettized row into RGB8. */
int
png_do_expand_palette_rgb8_neon(png_structrp png_ptr, png_row_infop row_info,
png_const_bytep row, png_bytepp ssp, png_bytepp ddp)
{
png_uint_32 row_width = row_info->width;
png_const_bytep palette = (png_const_bytep)png_ptr->palette;
const png_uint_32 pixels_per_chunk = 8;
png_uint_32 i;
png_debug(1, "in png_do_expand_palette_rgb8_neon");
PNG_UNUSED(row)
if (row_width <= pixels_per_chunk)
return 0;
/* Seeking this back by 8 pixels x 3 bytes. */
*ddp = *ddp - ((pixels_per_chunk * sizeof(png_color)) - 1);
for (i = 0; i < row_width; i += pixels_per_chunk)
{
uint8x8x3_t cur;
png_bytep sp = *ssp - i, dp = *ddp - ((i << 1) + i);
cur = vld3_dup_u8(palette + sizeof(png_color) * (*(sp - 7)));
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 6)), cur, 1);
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 5)), cur, 2);
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 4)), cur, 3);
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 3)), cur, 4);
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 2)), cur, 5);
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 1)), cur, 6);
cur = vld3_lane_u8(palette + sizeof(png_color) * (*(sp - 0)), cur, 7);
vst3_u8((void *)dp, cur);
}
if (i != row_width)
{
/* Remove the amount that wasn't processed. */
i -= pixels_per_chunk;
}
/* Decrement output pointers. */
*ssp = *ssp - i;
*ddp = *ddp - ((i << 1) + i);
return i;
}
#endif /* PNG_ARM_NEON_IMPLEMENTATION */

19
3rdparty/libpng/configure vendored
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@ -1,19 +0,0 @@
echo "
There is no \"configure\" script in this distribution (*.zip or *.7z) of
libpng-1.6.17.
Instead, please copy the appropriate makefile for your system from the
\"scripts\" directory. Read the INSTALL file for more details.
Update, July 2004: you can get a \"configure\" based distribution
from the libpng distribution sites. Download the file
libpng-1.6.17.tar.gz or libpng-1.6.17.tar.xz.
If the line endings in the files look funny, which is likely to be the
case if you were trying to run \"configure\" on a Linux machine, you may
wish to get the other distribution of libpng. It is available in both
tar.gz/tar.xz (UNIX style line endings, with \"configure\") and .7z/.zip
(DOS style line endings, without \"configure\") formats.
"

1061
3rdparty/libpng/example.c vendored
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391
3rdparty/libpng/intel/filter_sse2_intrinsics.c vendored Normal file
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/* filter_sse2_intrinsics.c - SSE2 optimized filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2016-2017 Glenn Randers-Pehrson
* Written by Mike Klein and Matt Sarett
* Derived from arm/filter_neon_intrinsics.c
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
#if PNG_INTEL_SSE_IMPLEMENTATION > 0
#include <immintrin.h>
/* Functions in this file look at most 3 pixels (a,b,c) to predict the 4th (d).
* They're positioned like this:
* prev: c b
* row: a d
* The Sub filter predicts d=a, Avg d=(a+b)/2, and Paeth predicts d to be
* whichever of a, b, or c is closest to p=a+b-c.
*/
static __m128i load4(const void* p) {
int tmp;
memcpy(&tmp, p, sizeof(tmp));
return _mm_cvtsi32_si128(tmp);
}
static void store4(void* p, __m128i v) {
int tmp = _mm_cvtsi128_si32(v);
memcpy(p, &tmp, sizeof(int));
}
static __m128i load3(const void* p) {
png_uint_32 tmp = 0;
memcpy(&tmp, p, 3);
return _mm_cvtsi32_si128(tmp);
}
static void store3(void* p, __m128i v) {
int tmp = _mm_cvtsi128_si32(v);
memcpy(p, &tmp, 3);
}
void png_read_filter_row_sub3_sse2(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* The Sub filter predicts each pixel as the previous pixel, a.
* There is no pixel to the left of the first pixel. It's encoded directly.
* That works with our main loop if we just say that left pixel was zero.
*/
size_t rb;
__m128i a, d = _mm_setzero_si128();
png_debug(1, "in png_read_filter_row_sub3_sse2");
rb = row_info->rowbytes;
while (rb >= 4) {
a = d; d = load4(row);
d = _mm_add_epi8(d, a);
store3(row, d);
row += 3;
rb -= 3;
}
if (rb > 0) {
a = d; d = load3(row);
d = _mm_add_epi8(d, a);
store3(row, d);
row += 3;
rb -= 3;
}
PNG_UNUSED(prev)
}
void png_read_filter_row_sub4_sse2(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* The Sub filter predicts each pixel as the previous pixel, a.
* There is no pixel to the left of the first pixel. It's encoded directly.
* That works with our main loop if we just say that left pixel was zero.
*/
size_t rb;
__m128i a, d = _mm_setzero_si128();
png_debug(1, "in png_read_filter_row_sub4_sse2");
rb = row_info->rowbytes+4;
while (rb > 4) {
a = d; d = load4(row);
d = _mm_add_epi8(d, a);
store4(row, d);
row += 4;
rb -= 4;
}
PNG_UNUSED(prev)
}
void png_read_filter_row_avg3_sse2(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* The Avg filter predicts each pixel as the (truncated) average of a and b.
* There's no pixel to the left of the first pixel. Luckily, it's
* predicted to be half of the pixel above it. So again, this works
* perfectly with our loop if we make sure a starts at zero.
*/
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i b;
__m128i a, d = zero;
png_debug(1, "in png_read_filter_row_avg3_sse2");
rb = row_info->rowbytes;
while (rb >= 4) {
__m128i avg;
b = load4(prev);
a = d; d = load4(row );
/* PNG requires a truncating average, so we can't just use _mm_avg_epu8 */
avg = _mm_avg_epu8(a,b);
/* ...but we can fix it up by subtracting off 1 if it rounded up. */
avg = _mm_sub_epi8(avg, _mm_and_si128(_mm_xor_si128(a,b),
_mm_set1_epi8(1)));
d = _mm_add_epi8(d, avg);
store3(row, d);
prev += 3;
row += 3;
rb -= 3;
}
if (rb > 0) {
__m128i avg;
b = load3(prev);
a = d; d = load3(row );
/* PNG requires a truncating average, so we can't just use _mm_avg_epu8 */
avg = _mm_avg_epu8(a,b);
/* ...but we can fix it up by subtracting off 1 if it rounded up. */
avg = _mm_sub_epi8(avg, _mm_and_si128(_mm_xor_si128(a,b),
_mm_set1_epi8(1)));
d = _mm_add_epi8(d, avg);
store3(row, d);
prev += 3;
row += 3;
rb -= 3;
}
}
void png_read_filter_row_avg4_sse2(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* The Avg filter predicts each pixel as the (truncated) average of a and b.
* There's no pixel to the left of the first pixel. Luckily, it's
* predicted to be half of the pixel above it. So again, this works
* perfectly with our loop if we make sure a starts at zero.
*/
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i b;
__m128i a, d = zero;
png_debug(1, "in png_read_filter_row_avg4_sse2");
rb = row_info->rowbytes+4;
while (rb > 4) {
__m128i avg;
b = load4(prev);
a = d; d = load4(row );
/* PNG requires a truncating average, so we can't just use _mm_avg_epu8 */
avg = _mm_avg_epu8(a,b);
/* ...but we can fix it up by subtracting off 1 if it rounded up. */
avg = _mm_sub_epi8(avg, _mm_and_si128(_mm_xor_si128(a,b),
_mm_set1_epi8(1)));
d = _mm_add_epi8(d, avg);
store4(row, d);
prev += 4;
row += 4;
rb -= 4;
}
}
/* Returns |x| for 16-bit lanes. */
static __m128i abs_i16(__m128i x) {
#if PNG_INTEL_SSE_IMPLEMENTATION >= 2
return _mm_abs_epi16(x);
#else
/* Read this all as, return x<0 ? -x : x.
* To negate two's complement, you flip all the bits then add 1.
*/
__m128i is_negative = _mm_cmplt_epi16(x, _mm_setzero_si128());
/* Flip negative lanes. */
x = _mm_xor_si128(x, is_negative);
/* +1 to negative lanes, else +0. */
x = _mm_sub_epi16(x, is_negative);
return x;
#endif
}
/* Bytewise c ? t : e. */
static __m128i if_then_else(__m128i c, __m128i t, __m128i e) {
#if PNG_INTEL_SSE_IMPLEMENTATION >= 3
return _mm_blendv_epi8(e,t,c);
#else
return _mm_or_si128(_mm_and_si128(c, t), _mm_andnot_si128(c, e));
#endif
}
void png_read_filter_row_paeth3_sse2(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* Paeth tries to predict pixel d using the pixel to the left of it, a,
* and two pixels from the previous row, b and c:
* prev: c b
* row: a d
* The Paeth function predicts d to be whichever of a, b, or c is nearest to
* p=a+b-c.
*
* The first pixel has no left context, and so uses an Up filter, p = b.
* This works naturally with our main loop's p = a+b-c if we force a and c
* to zero.
* Here we zero b and d, which become c and a respectively at the start of
* the loop.
*/
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i c, b = zero,
a, d = zero;
png_debug(1, "in png_read_filter_row_paeth3_sse2");
rb = row_info->rowbytes;
while (rb >= 4) {
/* It's easiest to do this math (particularly, deal with pc) with 16-bit
* intermediates.
*/
__m128i pa,pb,pc,smallest,nearest;
c = b; b = _mm_unpacklo_epi8(load4(prev), zero);
a = d; d = _mm_unpacklo_epi8(load4(row ), zero);
/* (p-a) == (a+b-c - a) == (b-c) */
pa = _mm_sub_epi16(b,c);
/* (p-b) == (a+b-c - b) == (a-c) */
pb = _mm_sub_epi16(a,c);
/* (p-c) == (a+b-c - c) == (a+b-c-c) == (b-c)+(a-c) */
pc = _mm_add_epi16(pa,pb);
pa = abs_i16(pa); /* |p-a| */
pb = abs_i16(pb); /* |p-b| */
pc = abs_i16(pc); /* |p-c| */
smallest = _mm_min_epi16(pc, _mm_min_epi16(pa, pb));
/* Paeth breaks ties favoring a over b over c. */
nearest = if_then_else(_mm_cmpeq_epi16(smallest, pa), a,
if_then_else(_mm_cmpeq_epi16(smallest, pb), b,
c));
/* Note `_epi8`: we need addition to wrap modulo 255. */
d = _mm_add_epi8(d, nearest);
store3(row, _mm_packus_epi16(d,d));
prev += 3;
row += 3;
rb -= 3;
}
if (rb > 0) {
/* It's easiest to do this math (particularly, deal with pc) with 16-bit
* intermediates.
*/
__m128i pa,pb,pc,smallest,nearest;
c = b; b = _mm_unpacklo_epi8(load3(prev), zero);
a = d; d = _mm_unpacklo_epi8(load3(row ), zero);
/* (p-a) == (a+b-c - a) == (b-c) */
pa = _mm_sub_epi16(b,c);
/* (p-b) == (a+b-c - b) == (a-c) */
pb = _mm_sub_epi16(a,c);
/* (p-c) == (a+b-c - c) == (a+b-c-c) == (b-c)+(a-c) */
pc = _mm_add_epi16(pa,pb);
pa = abs_i16(pa); /* |p-a| */
pb = abs_i16(pb); /* |p-b| */
pc = abs_i16(pc); /* |p-c| */
smallest = _mm_min_epi16(pc, _mm_min_epi16(pa, pb));
/* Paeth breaks ties favoring a over b over c. */
nearest = if_then_else(_mm_cmpeq_epi16(smallest, pa), a,
if_then_else(_mm_cmpeq_epi16(smallest, pb), b,
c));
/* Note `_epi8`: we need addition to wrap modulo 255. */
d = _mm_add_epi8(d, nearest);
store3(row, _mm_packus_epi16(d,d));
prev += 3;
row += 3;
rb -= 3;
}
}
void png_read_filter_row_paeth4_sse2(png_row_infop row_info, png_bytep row,
png_const_bytep prev)
{
/* Paeth tries to predict pixel d using the pixel to the left of it, a,
* and two pixels from the previous row, b and c:
* prev: c b
* row: a d
* The Paeth function predicts d to be whichever of a, b, or c is nearest to
* p=a+b-c.
*
* The first pixel has no left context, and so uses an Up filter, p = b.
* This works naturally with our main loop's p = a+b-c if we force a and c
* to zero.
* Here we zero b and d, which become c and a respectively at the start of
* the loop.
*/
size_t rb;
const __m128i zero = _mm_setzero_si128();
__m128i pa,pb,pc,smallest,nearest;
__m128i c, b = zero,
a, d = zero;
png_debug(1, "in png_read_filter_row_paeth4_sse2");
rb = row_info->rowbytes+4;
while (rb > 4) {
/* It's easiest to do this math (particularly, deal with pc) with 16-bit
* intermediates.
*/
c = b; b = _mm_unpacklo_epi8(load4(prev), zero);
a = d; d = _mm_unpacklo_epi8(load4(row ), zero);
/* (p-a) == (a+b-c - a) == (b-c) */
pa = _mm_sub_epi16(b,c);
/* (p-b) == (a+b-c - b) == (a-c) */
pb = _mm_sub_epi16(a,c);
/* (p-c) == (a+b-c - c) == (a+b-c-c) == (b-c)+(a-c) */
pc = _mm_add_epi16(pa,pb);
pa = abs_i16(pa); /* |p-a| */
pb = abs_i16(pb); /* |p-b| */
pc = abs_i16(pc); /* |p-c| */
smallest = _mm_min_epi16(pc, _mm_min_epi16(pa, pb));
/* Paeth breaks ties favoring a over b over c. */
nearest = if_then_else(_mm_cmpeq_epi16(smallest, pa), a,
if_then_else(_mm_cmpeq_epi16(smallest, pb), b,
c));
/* Note `_epi8`: we need addition to wrap modulo 255. */
d = _mm_add_epi8(d, nearest);
store4(row, _mm_packus_epi16(d,d));
prev += 4;
row += 4;
rb -= 4;
}
}
#endif /* PNG_INTEL_SSE_IMPLEMENTATION > 0 */
#endif /* READ */

52
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@ -0,0 +1,52 @@
/* intel_init.c - SSE2 optimized filter functions
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 2016-2017 Glenn Randers-Pehrson
* Written by Mike Klein and Matt Sarett, Google, Inc.
* Derived from arm/arm_init.c
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
#if PNG_INTEL_SSE_IMPLEMENTATION > 0
void
png_init_filter_functions_sse2(png_structp pp, unsigned int bpp)
{
/* The techniques used to implement each of these filters in SSE operate on
* one pixel at a time.
* So they generally speed up 3bpp images about 3x, 4bpp images about 4x.
* They can scale up to 6 and 8 bpp images and down to 2 bpp images,
* but they'd not likely have any benefit for 1bpp images.
* Most of these can be implemented using only MMX and 64-bit registers,
* but they end up a bit slower than using the equally-ubiquitous SSE2.
*/
png_debug(1, "in png_init_filter_functions_sse2");
if (bpp == 3)
{
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub3_sse2;
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg3_sse2;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
png_read_filter_row_paeth3_sse2;
}
else if (bpp == 4)
{
pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub4_sse2;
pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg4_sse2;
pp->read_filter[PNG_FILTER_VALUE_PAETH-1] =
png_read_filter_row_paeth4_sse2;
}
/* No need optimize PNG_FILTER_VALUE_UP. The compiler should
* autovectorize.
*/
}
#endif /* PNG_INTEL_SSE_IMPLEMENTATION > 0 */
#endif /* PNG_READ_SUPPORTED */

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@ -1,127 +0,0 @@
#! /bin/sh
# libpng-config
# provides configuration info for libpng.
# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Modeled after libxml-config.
version="@PNGLIB_VERSION@"
prefix="@prefix@"
exec_prefix="@exec_prefix@"
libdir="@libdir@"
includedir="@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@"
libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@"
all_libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ @LIBS@"
I_opts="-I${includedir}"
L_opts="-L${libdir}"
R_opts=""
cppflags=""
ccopts=""
ldopts=""
usage()
{
cat <<EOF
Usage: $0 [OPTION] ...
Known values for OPTION are:
--prefix print libpng prefix
--libdir print path to directory containing library
--libs print library linking information
--ccopts print compiler options
--cppflags print pre-processor flags
--cflags print preprocessor flags, I_opts, and compiler options
--I_opts print "-I" include options
--L_opts print linker "-L" flags for dynamic linking
--R_opts print dynamic linker "-R" or "-rpath" flags
--ldopts print linker options
--ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
--static revise subsequent outputs for static linking
--help print this help and exit
--version print version information
EOF
exit $1
}
if test $# -eq 0; then
usage 1
fi
while test $# -gt 0; do
case "$1" in
--prefix)
echo ${prefix}
;;
--version)
echo ${version}
exit 0
;;
--help)
usage 0
;;
--ccopts)
echo ${ccopts}
;;
--cppflags)
echo ${cppflags}
;;
--cflags)
echo ${I_opts} ${cppflags} ${ccopts}
;;
--libdir)
echo ${libdir}
;;
--libs)
echo ${libs}
;;
--I_opts)
echo ${I_opts}
;;
--L_opts)
echo ${L_opts}
;;
--R_opts)
echo ${R_opts}
;;
--ldopts)
echo ${ldopts}
;;
--ldflags)
echo ${ldopts} ${L_opts} ${R_opts} ${libs}
;;
--static)
R_opts=""
libs=${all_libs}
;;
*)
usage
exit 1
;;
esac
shift
done
exit 0

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11
3rdparty/libpng/libpng.pc.in vendored
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@ -1,11 +0,0 @@
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
Name: libpng
Description: Loads and saves PNG files
Version: @PNGLIB_VERSION@
Libs: -L${libdir} -lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
Libs.private: @LIBS@
Cflags: -I${includedir}

52
3rdparty/libpng/projects/vstudio/libpng/libpng.vcxproj → 3rdparty/libpng/libpng.vcxproj vendored
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@ -18,11 +18,11 @@
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" /> <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings" /> <ImportGroup Label="ExtensionSettings" />
<ImportGroup Label="PropertySheets"> <ImportGroup Label="PropertySheets">
<Import Project="..\..\..\..\3rdparty.props" /> <Import Project="..\3rdparty.props" />
<Import Condition="$(Configuration.Contains(Debug))" Project="..\..\..\..\..\common\vsprops\CodeGen_Debug.props" /> <Import Condition="$(Configuration.Contains(Debug))" Project="..\..\common\vsprops\CodeGen_Debug.props" />
<Import Condition="$(Configuration.Contains(Devel))" Project="..\..\..\..\..\common\vsprops\CodeGen_Devel.props" /> <Import Condition="$(Configuration.Contains(Devel))" Project="..\..\common\vsprops\CodeGen_Devel.props" />
<Import Condition="$(Configuration.Contains(Release))" Project="..\..\..\..\..\common\vsprops\CodeGen_Release.props" /> <Import Condition="$(Configuration.Contains(Release))" Project="..\..\common\vsprops\CodeGen_Release.props" />
<Import Condition="!$(Configuration.Contains(Release))" Project="..\..\..\..\..\common\vsprops\IncrementalLinking.props" /> <Import Condition="!$(Configuration.Contains(Release))" Project="..\..\common\vsprops\IncrementalLinking.props" />
</ImportGroup> </ImportGroup>
<PropertyGroup Label="UserMacros" /> <PropertyGroup Label="UserMacros" />
<PropertyGroup> <PropertyGroup>
@ -30,36 +30,34 @@
</PropertyGroup> </PropertyGroup>
<ItemDefinitionGroup> <ItemDefinitionGroup>
<ClCompile> <ClCompile>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<PrecompiledHeaderFile>pngpriv.h</PrecompiledHeaderFile>
<IntrinsicFunctions>true</IntrinsicFunctions> <IntrinsicFunctions>true</IntrinsicFunctions>
<CompileAs>CompileAsC</CompileAs> <CompileAs>CompileAsC</CompileAs>
<DisableSpecificWarnings>4996;4127</DisableSpecificWarnings> <WarningLevel>TurnOffAllWarnings</WarningLevel>
<PreprocessorDefinitions Condition="'$(Platform)'=='x64'">PNG_INTEL_SSE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>$(SolutionDir)3rdparty\zlib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories> <AdditionalIncludeDirectories>$(SolutionDir)3rdparty\zlib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<TreatWarningAsError>true</TreatWarningAsError>
</ClCompile> </ClCompile>
</ItemDefinitionGroup> </ItemDefinitionGroup>
<ItemGroup> <ItemGroup>
<ClCompile Include="..\..\..\png.c"> <ClCompile Include="intel\filter_sse2_intrinsics.c" />
<PrecompiledHeader>Create</PrecompiledHeader> <ClCompile Include="intel\intel_init.c" />
</ClCompile> <ClCompile Include="png.c" />
<ClCompile Include="..\..\..\pngerror.c" /> <ClCompile Include="pngerror.c" />
<ClCompile Include="..\..\..\pngget.c" /> <ClCompile Include="pngget.c" />
<ClCompile Include="..\..\..\pngmem.c" /> <ClCompile Include="pngmem.c" />
<ClCompile Include="..\..\..\pngpread.c" /> <ClCompile Include="pngpread.c" />
<ClCompile Include="..\..\..\pngread.c" /> <ClCompile Include="pngread.c" />
<ClCompile Include="..\..\..\pngrio.c" /> <ClCompile Include="pngrio.c" />
<ClCompile Include="..\..\..\pngrtran.c" /> <ClCompile Include="pngrtran.c" />
<ClCompile Include="..\..\..\pngrutil.c" /> <ClCompile Include="pngrutil.c" />
<ClCompile Include="..\..\..\pngset.c" /> <ClCompile Include="pngset.c" />
<ClCompile Include="..\..\..\pngtrans.c" /> <ClCompile Include="pngtrans.c" />
<ClCompile Include="..\..\..\pngwio.c" /> <ClCompile Include="pngwio.c" />
<ClCompile Include="..\..\..\pngwrite.c" /> <ClCompile Include="pngwrite.c" />
<ClCompile Include="..\..\..\pngwtran.c" /> <ClCompile Include="pngwtran.c" />
<ClCompile Include="..\..\..\pngwutil.c" /> <ClCompile Include="pngwutil.c" />
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ProjectReference Include="..\..\..\..\zlib\zlib.vcxproj"> <ProjectReference Include="..\zlib\zlib.vcxproj">
<Project>{2f6c0388-20cb-4242-9f6c-a6ebb6a83f47}</Project> <Project>{2f6c0388-20cb-4242-9f6c-a6ebb6a83f47}</Project>
</ProjectReference> </ProjectReference>
</ItemGroup> </ItemGroup>

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3rdparty/libpng/libpngpf.3 vendored
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@ -1,18 +0,0 @@
.TH LIBPNGPF 3 "March 26, 2015"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.6.17
(private functions)
.SH SYNOPSIS
\fB#include \fI"pngpriv.h"
\fBAs of libpng version \fP\fI1.5.1\fP\fB, this section is no longer \fP\fImaintained\fP\fB, now that the private function prototypes are hidden in pngpriv.h and not accessible to applications. Look in pngpriv.h for the prototypes and a short description of each \fIfunction.
.SH DESCRIPTION
The functions previously listed here are used privately by libpng and are not
available for use by applications. They are not "exported" to applications
using shared libraries.
.SH SEE ALSO
.BR "png"(5), " libpng"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5)
.SH AUTHOR
Glenn Randers-Pehrson

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@ -1,74 +0,0 @@
.TH PNG 5 "March 26, 2015"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION
PNG (Portable Network Graphics) is an extensible file format for the
lossless, portable, well-compressed storage of raster images. PNG provides
a patent-free replacement for GIF and can also replace many
common uses of TIFF. Indexed-color, grayscale, and truecolor images are
supported, plus an optional alpha channel. Sample depths range from
1 to 16 bits.
.br
PNG is designed to work well in online viewing applications, such as the
World Wide Web, so it is fully streamable with a progressive display
option. PNG is robust, providing both full file integrity checking and
fast, simple detection of common transmission errors. Also, PNG can store
gamma and chromaticity data for improved color matching on heterogeneous
platforms.
.SH "SEE ALSO"
.BR "libpng"(3), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5)
.LP
PNG specification (second edition), November 2003:
.IP
.br
<http://www.w3.org/TR/2003/REC-PNG-20031110/
PNG 1.2 specification, July 1999:
.IP
.br
http://www.libpng.org/pub/png
.LP
PNG 1.0 specification, October 1996:
.IP
.br
RFC 2083
.IP
.br
ftp://ds.internic.net/rfc/rfc2083.txt
.br
or (as a W3C Recommendation) at
.br
http://www.w3.org/TR/REC-png.html
.SH AUTHORS
This man page: Glenn Randers-Pehrson
.LP
Portable Network Graphics (PNG) Specification (Second Edition)
Information technology - Computer graphics and image processing -
Portable Network Graphics (PNG): Functional specification.
ISO/IEC 15948:2003 (E) (November 10, 2003): David Duce and others.
.LP
Portable Network Graphics (PNG) Specification Version 1.2 (July 8, 1999):
Glenn Randers-Pehrson and others (png-list).
.LP
Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996):
Thomas Boutell and others (png-list).
.LP
.SH COPYRIGHT NOTICE
.LP
This man page is Copyright (c) 1998-2006 Glenn Randers-Pehrson. See png.h
for conditions of use and distribution.
.LP
The PNG Specification (Second Edition) is
Copyright (c) 2003 W3C. (MIT, ERCIM, Keio), All Rights Reserved.
.LP
The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson.
See the specification for conditions of use and distribution.
.LP
The PNG-1.0 specification is copyright (c) 1996 Massachusetts Institute of
Technology. See the specification for conditions of use and distribution.
.LP
.\" end of man page

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3rdparty/libpng/pngconf.h vendored
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@ -1,11 +1,12 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine-configurable file for libpng
* *
* libpng version 1.6.17, March 26, 2015 * libpng version 1.6.40
* *
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 2018-2022 Cosmin Truta
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1996-1997 Andreas Dilger
* Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -57,14 +58,13 @@
#endif /* PNG_BUILDING_SYMBOL_TABLE */ #endif /* PNG_BUILDING_SYMBOL_TABLE */
/* Prior to 1.6.0 it was possible to turn off 'const' in declarations using /* Prior to 1.6.0, it was possible to turn off 'const' in declarations,
* PNG_NO_CONST; this is no longer supported except for data declarations which * using PNG_NO_CONST. This is no longer supported.
* apparently still cause problems in 2011 on some compilers.
*/ */
#define PNG_CONST const /* backward compatibility only */ #define PNG_CONST const /* backward compatibility only */
/* This controls optimization of the reading of 16 and 32 bit values /* This controls optimization of the reading of 16-bit and 32-bit
* from PNG files. It can be set on a per-app-file basis - it * values from PNG files. It can be set on a per-app-file basis: it
* just changes whether a macro is used when the function is called. * just changes whether a macro is used when the function is called.
* The library builder sets the default; if read functions are not * The library builder sets the default; if read functions are not
* built into the library the macro implementation is forced on. * built into the library the macro implementation is forced on.
@ -127,7 +127,7 @@
* *
* These cases only differ if the operating system does not use the C * These cases only differ if the operating system does not use the C
* calling convention, at present this just means the above cases * calling convention, at present this just means the above cases
* (x86 DOS/Windows sytems) and, even then, this does not apply to * (x86 DOS/Windows systems) and, even then, this does not apply to
* Cygwin running on those systems. * Cygwin running on those systems.
* *
* Note that the value must be defined in pnglibconf.h so that what * Note that the value must be defined in pnglibconf.h so that what
@ -180,35 +180,35 @@
* compiler-specific macros to the values required to change the calling * compiler-specific macros to the values required to change the calling
* conventions of the various functions. * conventions of the various functions.
*/ */
#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\ #if defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || \
defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) defined(__CYGWIN__)
/* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or
* MinGW on any architecture currently supported by Windows. Also includes * MinGW on any architecture currently supported by Windows. Also includes
* Watcom builds but these need special treatment because they are not * Watcom builds but these need special treatment because they are not
* compatible with GCC or Visual C because of different calling conventions. * compatible with GCC or Visual C because of different calling conventions.
*/ */
# if PNG_API_RULE == 2 # if PNG_API_RULE == 2
/* If this line results in an error, either because __watcall is not /* If this line results in an error, either because __watcall is not
* understood or because of a redefine just below you cannot use *this* * understood or because of a redefine just below you cannot use *this*
* build of the library with the compiler you are using. *This* build was * build of the library with the compiler you are using. *This* build was
* build using Watcom and applications must also be built using Watcom! * build using Watcom and applications must also be built using Watcom!
*/ */
# define PNGCAPI __watcall # define PNGCAPI __watcall
# endif # endif
# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800)) # if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800))
# define PNGCAPI __cdecl # define PNGCAPI __cdecl
# if PNG_API_RULE == 1 # if PNG_API_RULE == 1
/* If this line results in an error __stdcall is not understood and /* If this line results in an error __stdcall is not understood and
* PNG_API_RULE should not have been set to '1'. * PNG_API_RULE should not have been set to '1'.
*/ */
# define PNGAPI __stdcall # define PNGAPI __stdcall
# endif # endif
# else # else
/* An older compiler, or one not detected (erroneously) above, /* An older compiler, or one not detected (erroneously) above,
* if necessary override on the command line to get the correct * if necessary override on the command line to get the correct
* variants for the compiler. * variants for the compiler.
*/ */
# ifndef PNGCAPI # ifndef PNGCAPI
# define PNGCAPI _cdecl # define PNGCAPI _cdecl
# endif # endif
@ -225,10 +225,10 @@
# if (defined(_MSC_VER) && _MSC_VER < 800) ||\ # if (defined(_MSC_VER) && _MSC_VER < 800) ||\
(defined(__BORLANDC__) && __BORLANDC__ < 0x500) (defined(__BORLANDC__) && __BORLANDC__ < 0x500)
/* older Borland and MSC /* older Borland and MSC
* compilers used '__export' and required this to be after * compilers used '__export' and required this to be after
* the type. * the type.
*/ */
# ifndef PNG_EXPORT_TYPE # ifndef PNG_EXPORT_TYPE
# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP # define PNG_EXPORT_TYPE(type) type PNG_IMPEXP
# endif # endif
@ -244,9 +244,9 @@
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) # if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
# define PNGAPI _System # define PNGAPI _System
# else /* !Windows/x86 && !OS/2 */ # else /* !Windows/x86 && !OS/2 */
/* Use the defaults, or define PNG*API on the command line (but /* Use the defaults, or define PNG*API on the command line (but
* this will have to be done for every compile!) * this will have to be done for every compile!)
*/ */
# endif /* other system, !OS/2 */ # endif /* other system, !OS/2 */
#endif /* !Windows/x86 */ #endif /* !Windows/x86 */
@ -267,7 +267,7 @@
*/ */
#ifndef PNG_IMPEXP #ifndef PNG_IMPEXP
# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT) # if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT)
/* This forces use of a DLL, disallowing static linking */ /* This forces use of a DLL, disallowing static linking */
# define PNG_IMPEXP PNG_DLL_IMPORT # define PNG_IMPEXP PNG_DLL_IMPORT
# endif # endif
@ -295,11 +295,11 @@
* table entries, so we discard it here. See the .dfn files in the * table entries, so we discard it here. See the .dfn files in the
* scripts directory. * scripts directory.
*/ */
#ifndef PNG_EXPORTA
# define PNG_EXPORTA(ordinal, type, name, args, attributes)\ #ifndef PNG_EXPORTA
PNG_FUNCTION(PNG_EXPORT_TYPE(type),(PNGAPI name),PNGARG(args), \ # define PNG_EXPORTA(ordinal, type, name, args, attributes) \
extern attributes) PNG_FUNCTION(PNG_EXPORT_TYPE(type), (PNGAPI name), PNGARG(args), \
PNG_LINKAGE_API attributes)
#endif #endif
/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument, /* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
@ -307,7 +307,7 @@
*/ */
#define PNG_EMPTY /*empty list*/ #define PNG_EMPTY /*empty list*/
#define PNG_EXPORT(ordinal, type, name, args)\ #define PNG_EXPORT(ordinal, type, name, args) \
PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY) PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
/* Use PNG_REMOVED to comment out a removed interface. */ /* Use PNG_REMOVED to comment out a removed interface. */
@ -340,7 +340,7 @@
* less efficient code. * less efficient code.
*/ */
# if defined(__clang__) && defined(__has_attribute) # if defined(__clang__) && defined(__has_attribute)
/* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */ /* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */
# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__) # if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__)
# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) # define PNG_USE_RESULT __attribute__((__warn_unused_result__))
# endif # endif
@ -480,7 +480,7 @@
#if CHAR_BIT == 8 && UCHAR_MAX == 255 #if CHAR_BIT == 8 && UCHAR_MAX == 255
typedef unsigned char png_byte; typedef unsigned char png_byte;
#else #else
# error "libpng requires 8 bit bytes" # error "libpng requires 8-bit bytes"
#endif #endif
#if INT_MIN == -32768 && INT_MAX == 32767 #if INT_MIN == -32768 && INT_MAX == 32767
@ -488,7 +488,7 @@
#elif SHRT_MIN == -32768 && SHRT_MAX == 32767 #elif SHRT_MIN == -32768 && SHRT_MAX == 32767
typedef short png_int_16; typedef short png_int_16;
#else #else
# error "libpng requires a signed 16 bit type" # error "libpng requires a signed 16-bit type"
#endif #endif
#if UINT_MAX == 65535 #if UINT_MAX == 65535
@ -496,7 +496,7 @@
#elif USHRT_MAX == 65535 #elif USHRT_MAX == 65535
typedef unsigned short png_uint_16; typedef unsigned short png_uint_16;
#else #else
# error "libpng requires an unsigned 16 bit type" # error "libpng requires an unsigned 16-bit type"
#endif #endif
#if INT_MIN < -2147483646 && INT_MAX > 2147483646 #if INT_MIN < -2147483646 && INT_MAX > 2147483646
@ -504,19 +504,21 @@
#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646 #elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646
typedef long int png_int_32; typedef long int png_int_32;
#else #else
# error "libpng requires a signed 32 bit (or more) type" # error "libpng requires a signed 32-bit (or more) type"
#endif #endif
#if UINT_MAX > 4294967294 #if UINT_MAX > 4294967294U
typedef unsigned int png_uint_32; typedef unsigned int png_uint_32;
#elif ULONG_MAX > 4294967294 #elif ULONG_MAX > 4294967294U
typedef unsigned long int png_uint_32; typedef unsigned long int png_uint_32;
#else #else
# error "libpng requires an unsigned 32 bit (or more) type" # error "libpng requires an unsigned 32-bit (or more) type"
#endif #endif
/* Prior to 1.6.0 it was possible to disable the use of size_t, 1.6.0, however, /* Prior to 1.6.0, it was possible to disable the use of size_t and ptrdiff_t.
* requires an ISOC90 compiler and relies on consistent behavior of sizeof. * From 1.6.0 onwards, an ISO C90 compiler, as well as a standard-compliant
* behavior of sizeof and ptrdiff_t are required.
* The legacy typedefs are provided here for backwards compatibility.
*/ */
typedef size_t png_size_t; typedef size_t png_size_t;
typedef ptrdiff_t png_ptrdiff_t; typedef ptrdiff_t png_ptrdiff_t;
@ -537,13 +539,12 @@ typedef ptrdiff_t png_ptrdiff_t;
# endif # endif
#endif #endif
/* png_alloc_size_t is guaranteed to be no smaller than png_size_t, and no /* png_alloc_size_t is guaranteed to be no smaller than size_t, and no smaller
* smaller than png_uint_32. Casts from png_size_t or png_uint_32 to * than png_uint_32. Casts from size_t or png_uint_32 to png_alloc_size_t are
* png_alloc_size_t are not necessary; in fact, it is recommended not to use * not necessary; in fact, it is recommended not to use them at all, so that
* them at all so that the compiler can complain when something turns out to be * the compiler can complain when something turns out to be problematic.
* problematic.
* *
* Casts in the other direction (from png_alloc_size_t to png_size_t or * Casts in the other direction (from png_alloc_size_t to size_t or
* png_uint_32) should be explicitly applied; however, we do not expect to * png_uint_32) should be explicitly applied; however, we do not expect to
* encounter practical situations that require such conversions. * encounter practical situations that require such conversions.
* *
@ -553,7 +554,7 @@ typedef ptrdiff_t png_ptrdiff_t;
#ifdef PNG_SMALL_SIZE_T #ifdef PNG_SMALL_SIZE_T
typedef png_uint_32 png_alloc_size_t; typedef png_uint_32 png_alloc_size_t;
#else #else
typedef png_size_t png_alloc_size_t; typedef size_t png_alloc_size_t;
#endif #endif
/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler /* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler
@ -589,8 +590,8 @@ typedef char * png_charp;
typedef const char * png_const_charp; typedef const char * png_const_charp;
typedef png_fixed_point * png_fixed_point_p; typedef png_fixed_point * png_fixed_point_p;
typedef const png_fixed_point * png_const_fixed_point_p; typedef const png_fixed_point * png_const_fixed_point_p;
typedef png_size_t * png_size_tp; typedef size_t * png_size_tp;
typedef const png_size_t * png_const_size_tp; typedef const size_t * png_const_size_tp;
#ifdef PNG_STDIO_SUPPORTED #ifdef PNG_STDIO_SUPPORTED
typedef FILE * png_FILE_p; typedef FILE * png_FILE_p;

8
3rdparty/libpng/pngdebug.h vendored
View File

@ -1,10 +1,10 @@
/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c /* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
* *
* Last changed in libpng 1.6.8 [December 19, 2013] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer

90
3rdparty/libpng/pngerror.c vendored
View File

@ -1,10 +1,10 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* Last changed in libpng 1.6.15 [November 20, 2014] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2014 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -26,7 +26,7 @@ static PNG_FUNCTION(void, png_default_error,PNGARG((png_const_structrp png_ptr,
#ifdef PNG_WARNINGS_SUPPORTED #ifdef PNG_WARNINGS_SUPPORTED
static void /* PRIVATE */ static void /* PRIVATE */
png_default_warning PNGARG((png_const_structrp png_ptr, png_default_warning PNGARG((png_const_structrp png_ptr,
png_const_charp warning_message)); png_const_charp warning_message));
#endif /* WARNINGS */ #endif /* WARNINGS */
/* This function is called whenever there is a fatal error. This function /* This function is called whenever there is a fatal error. This function
@ -37,14 +37,14 @@ png_default_warning PNGARG((png_const_structrp png_ptr,
#ifdef PNG_ERROR_TEXT_SUPPORTED #ifdef PNG_ERROR_TEXT_SUPPORTED
PNG_FUNCTION(void,PNGAPI PNG_FUNCTION(void,PNGAPI
png_error,(png_const_structrp png_ptr, png_const_charp error_message), png_error,(png_const_structrp png_ptr, png_const_charp error_message),
PNG_NORETURN) PNG_NORETURN)
{ {
#ifdef PNG_ERROR_NUMBERS_SUPPORTED #ifdef PNG_ERROR_NUMBERS_SUPPORTED
char msg[16]; char msg[16];
if (png_ptr != NULL) if (png_ptr != NULL)
{ {
if ((png_ptr->flags & if ((png_ptr->flags &
(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0 (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0)
{ {
if (*error_message == PNG_LITERAL_SHARP) if (*error_message == PNG_LITERAL_SHARP)
{ {
@ -65,18 +65,18 @@ png_error,(png_const_structrp png_ptr, png_const_charp error_message),
else else
error_message += offset; error_message += offset;
}
else
{
if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
{
msg[0] = '0';
msg[1] = '\0';
error_message = msg;
} }
}
} else
{
if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
{
msg[0] = '0';
msg[1] = '\0';
error_message = msg;
}
}
}
} }
#endif #endif
if (png_ptr != NULL && png_ptr->error_fn != NULL) if (png_ptr != NULL && png_ptr->error_fn != NULL)
@ -110,7 +110,7 @@ png_err,(png_const_structrp png_ptr),PNG_NORETURN)
*/ */
size_t size_t
png_safecat(png_charp buffer, size_t bufsize, size_t pos, png_safecat(png_charp buffer, size_t bufsize, size_t pos,
png_const_charp string) png_const_charp string)
{ {
if (buffer != NULL && pos < bufsize) if (buffer != NULL && pos < bufsize)
{ {
@ -131,7 +131,7 @@ png_safecat(png_charp buffer, size_t bufsize, size_t pos,
*/ */
png_charp png_charp
png_format_number(png_const_charp start, png_charp end, int format, png_format_number(png_const_charp start, png_charp end, int format,
png_alloc_size_t number) png_alloc_size_t number)
{ {
int count = 0; /* number of digits output */ int count = 0; /* number of digits output */
int mincount = 1; /* minimum number required */ int mincount = 1; /* minimum number required */
@ -163,7 +163,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
case PNG_NUMBER_FORMAT_02u: case PNG_NUMBER_FORMAT_02u:
/* Expects at least 2 digits. */ /* Expects at least 2 digits. */
mincount = 2; mincount = 2;
/* FALL THROUGH */ /* FALLTHROUGH */
case PNG_NUMBER_FORMAT_u: case PNG_NUMBER_FORMAT_u:
*--end = digits[number % 10]; *--end = digits[number % 10];
@ -173,7 +173,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
case PNG_NUMBER_FORMAT_02x: case PNG_NUMBER_FORMAT_02x:
/* This format expects at least two digits */ /* This format expects at least two digits */
mincount = 2; mincount = 2;
/* FALL THROUGH */ /* FALLTHROUGH */
case PNG_NUMBER_FORMAT_x: case PNG_NUMBER_FORMAT_x:
*--end = digits[number & 0xf]; *--end = digits[number & 0xf];
@ -233,7 +233,7 @@ png_warning(png_const_structrp png_ptr, png_const_charp warning_message)
} }
if (png_ptr != NULL && png_ptr->warning_fn != NULL) if (png_ptr != NULL && png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr), (*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr),
warning_message + offset); warning_message + offset);
else else
png_default_warning(png_ptr, warning_message + offset); png_default_warning(png_ptr, warning_message + offset);
} }
@ -245,7 +245,7 @@ png_warning(png_const_structrp png_ptr, png_const_charp warning_message)
*/ */
void void
png_warning_parameter(png_warning_parameters p, int number, png_warning_parameter(png_warning_parameters p, int number,
png_const_charp string) png_const_charp string)
{ {
if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT) if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT)
(void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string); (void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string);
@ -253,7 +253,7 @@ png_warning_parameter(png_warning_parameters p, int number,
void void
png_warning_parameter_unsigned(png_warning_parameters p, int number, int format, png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
png_alloc_size_t value) png_alloc_size_t value)
{ {
char buffer[PNG_NUMBER_BUFFER_SIZE]; char buffer[PNG_NUMBER_BUFFER_SIZE];
png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value)); png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value));
@ -261,7 +261,7 @@ png_warning_parameter_unsigned(png_warning_parameters p, int number, int format,
void void
png_warning_parameter_signed(png_warning_parameters p, int number, int format, png_warning_parameter_signed(png_warning_parameters p, int number, int format,
png_int_32 value) png_int_32 value)
{ {
png_alloc_size_t u; png_alloc_size_t u;
png_charp str; png_charp str;
@ -282,7 +282,7 @@ png_warning_parameter_signed(png_warning_parameters p, int number, int format,
void void
png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p, png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p,
png_const_charp message) png_const_charp message)
{ {
/* The internal buffer is just 192 bytes - enough for all our messages, /* The internal buffer is just 192 bytes - enough for all our messages,
* overflow doesn't happen because this code checks! If someone figures * overflow doesn't happen because this code checks! If someone figures
@ -391,10 +391,10 @@ png_benign_error(png_const_structrp png_ptr, png_const_charp error_message)
void /* PRIVATE */ void /* PRIVATE */
png_app_warning(png_const_structrp png_ptr, png_const_charp error_message) png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
{ {
if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0) if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
png_warning(png_ptr, error_message); png_warning(png_ptr, error_message);
else else
png_error(png_ptr, error_message); png_error(png_ptr, error_message);
# ifndef PNG_ERROR_TEXT_SUPPORTED # ifndef PNG_ERROR_TEXT_SUPPORTED
PNG_UNUSED(error_message) PNG_UNUSED(error_message)
@ -404,10 +404,10 @@ png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
void /* PRIVATE */ void /* PRIVATE */
png_app_error(png_const_structrp png_ptr, png_const_charp error_message) png_app_error(png_const_structrp png_ptr, png_const_charp error_message)
{ {
if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0) if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
png_warning(png_ptr, error_message); png_warning(png_ptr, error_message);
else else
png_error(png_ptr, error_message); png_error(png_ptr, error_message);
# ifndef PNG_ERROR_TEXT_SUPPORTED # ifndef PNG_ERROR_TEXT_SUPPORTED
PNG_UNUSED(error_message) PNG_UNUSED(error_message)
@ -425,7 +425,7 @@ png_app_error(png_const_structrp png_ptr, png_const_charp error_message)
* if the character is invalid. * if the character is invalid.
*/ */
#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) #define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97))
static PNG_CONST char png_digit[16] = { static const char png_digit[16] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F' 'A', 'B', 'C', 'D', 'E', 'F'
}; };
@ -478,7 +478,7 @@ png_format_buffer(png_const_structrp png_ptr, png_charp buffer, png_const_charp
#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED) #if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
PNG_FUNCTION(void,PNGAPI PNG_FUNCTION(void,PNGAPI
png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message), png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message),
PNG_NORETURN) PNG_NORETURN)
{ {
char msg[18+PNG_MAX_ERROR_TEXT]; char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL) if (png_ptr == NULL)
@ -573,7 +573,7 @@ png_fixed_error,(png_const_structrp png_ptr, png_const_charp name),PNG_NORETURN)
{ {
# define fixed_message "fixed point overflow in " # define fixed_message "fixed point overflow in "
# define fixed_message_ln ((sizeof fixed_message)-1) # define fixed_message_ln ((sizeof fixed_message)-1)
int iin; unsigned int iin;
char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT]; char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT];
memcpy(msg, fixed_message, fixed_message_ln); memcpy(msg, fixed_message, fixed_message_ln);
iin = 0; iin = 0;
@ -620,7 +620,7 @@ png_set_longjmp_fn(png_structrp png_ptr, png_longjmp_ptr longjmp_fn,
else else
{ {
png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *, png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *,
png_malloc_warn(png_ptr, jmp_buf_size)); png_malloc_warn(png_ptr, jmp_buf_size));
if (png_ptr->jmp_buf_ptr == NULL) if (png_ptr->jmp_buf_ptr == NULL)
return NULL; /* new NULL return on OOM */ return NULL; /* new NULL return on OOM */
@ -709,7 +709,7 @@ png_free_jmpbuf(png_structrp png_ptr)
*/ */
static PNG_FUNCTION(void /* PRIVATE */, static PNG_FUNCTION(void /* PRIVATE */,
png_default_error,(png_const_structrp png_ptr, png_const_charp error_message), png_default_error,(png_const_structrp png_ptr, png_const_charp error_message),
PNG_NORETURN) PNG_NORETURN)
{ {
#ifdef PNG_CONSOLE_IO_SUPPORTED #ifdef PNG_CONSOLE_IO_SUPPORTED
#ifdef PNG_ERROR_NUMBERS_SUPPORTED #ifdef PNG_ERROR_NUMBERS_SUPPORTED
@ -768,7 +768,7 @@ png_longjmp,(png_const_structrp png_ptr, int val),PNG_NORETURN)
/* If control reaches this point, png_longjmp() must not return. The only /* If control reaches this point, png_longjmp() must not return. The only
* choice is to terminate the whole process (or maybe the thread); to do * choice is to terminate the whole process (or maybe the thread); to do
* this the ANSI-C abort() function is used unless a different method is * this the ANSI-C abort() function is used unless a different method is
* implemented by overriding the default configuration setting for * implemented by overriding the default configuration setting for
* PNG_ABORT(). * PNG_ABORT().
*/ */
@ -883,9 +883,9 @@ png_set_strip_error_numbers(png_structrp png_ptr, png_uint_32 strip_mode)
*/ */
PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI
png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message), png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
PNG_NORETURN) PNG_NORETURN)
{ {
const png_const_structrp png_ptr = png_nonconst_ptr; png_const_structrp png_ptr = png_nonconst_ptr;
png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr); png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
/* An error is always logged here, overwriting anything (typically a warning) /* An error is always logged here, overwriting anything (typically a warning)
@ -906,7 +906,7 @@ png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
/* Missing longjmp buffer, the following is to help debugging: */ /* Missing longjmp buffer, the following is to help debugging: */
{ {
size_t pos = png_safecat(image->message, (sizeof image->message), 0, size_t pos = png_safecat(image->message, (sizeof image->message), 0,
"bad longjmp: "); "bad longjmp: ");
png_safecat(image->message, (sizeof image->message), pos, png_safecat(image->message, (sizeof image->message), pos,
error_message); error_message);
} }
@ -920,7 +920,7 @@ png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message),
void /* PRIVATE */ PNGCBAPI void /* PRIVATE */ PNGCBAPI
png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message) png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message)
{ {
const png_const_structrp png_ptr = png_nonconst_ptr; png_const_structrp png_ptr = png_nonconst_ptr;
png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr); png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr);
/* A warning is only logged if there is no prior warning or error. */ /* A warning is only logged if there is no prior warning or error. */

143
3rdparty/libpng/pngget.c vendored
View File

@ -1,10 +1,10 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -21,12 +21,23 @@ png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 flag) png_uint_32 flag)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
#ifdef PNG_READ_tRNS_SUPPORTED
/* png_handle_PLTE() may have canceled a valid tRNS chunk but left the
* 'valid' flag for the detection of duplicate chunks. Do not report a
* valid tRNS chunk in this case.
*/
if (flag == PNG_INFO_tRNS && png_ptr->num_trans == 0)
return(0);
#endif
return(info_ptr->valid & flag); return(info_ptr->valid & flag);
}
return(0); return(0);
} }
png_size_t PNGAPI size_t PNGAPI
png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr) png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
@ -338,7 +349,7 @@ ppi_from_ppm(png_uint_32 ppm)
png_fixed_point result; png_fixed_point result;
if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127, if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127,
5000) != 0) 5000) != 0)
return result; return (png_uint_32)result;
/* Overflow. */ /* Overflow. */
return 0; return 0;
@ -367,7 +378,7 @@ png_get_y_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
static png_fixed_point static png_fixed_point
png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns) png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns)
{ {
/* Convert from metres * 1,000,000 to inches * 100,000, meters to /* Convert from meters * 1,000,000 to inches * 100,000, meters to
* inches is simply *(100/2.54), so we want *(10/2.54) == 500/127. * inches is simply *(100/2.54), so we want *(10/2.54) == 500/127.
* Notice that this can overflow - a warning is output and 0 is * Notice that this can overflow - a warning is output and 0 is
* returned. * returned.
@ -456,11 +467,11 @@ png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
return (retval); return (retval);
} }
#endif /* pHYs */ #endif /* pHYs */
#endif /* INCH_CONVERSIONS */ #endif /* INCH_CONVERSIONS */
/* png_get_channels really belongs in here, too, but it's been around longer */ /* png_get_channels really belongs in here, too, but it's been around longer */
#endif /* EASY_ACCESS */ #endif /* EASY_ACCESS */
png_byte PNGAPI png_byte PNGAPI
@ -486,7 +497,7 @@ png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
#ifdef PNG_bKGD_SUPPORTED #ifdef PNG_bKGD_SUPPORTED
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr, png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
png_color_16p *background) png_color_16p *background)
{ {
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_bKGD) != 0 && (info_ptr->valid & PNG_INFO_bKGD) != 0 &&
@ -526,28 +537,28 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
if (white_x != NULL) if (white_x != NULL)
*white_x = png_float(png_ptr, *white_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitex, "cHRM white X"); info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
if (white_y != NULL) if (white_y != NULL)
*white_y = png_float(png_ptr, *white_y = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y"); info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y");
if (red_x != NULL) if (red_x != NULL)
*red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx, *red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx,
"cHRM red X"); "cHRM red X");
if (red_y != NULL) if (red_y != NULL)
*red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy, *red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy,
"cHRM red Y"); "cHRM red Y");
if (green_x != NULL) if (green_x != NULL)
*green_x = png_float(png_ptr, *green_x = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.greenx, "cHRM green X"); info_ptr->colorspace.end_points_xy.greenx, "cHRM green X");
if (green_y != NULL) if (green_y != NULL)
*green_y = png_float(png_ptr, *green_y = png_float(png_ptr,
info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y"); info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y");
if (blue_x != NULL) if (blue_x != NULL)
*blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex, *blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex,
"cHRM blue X"); "cHRM blue X");
if (blue_y != NULL) if (blue_y != NULL)
*blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey, *blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
"cHRM blue Y"); "cHRM blue Y");
return (PNG_INFO_cHRM); return (PNG_INFO_cHRM);
} }
@ -556,42 +567,42 @@ png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr, png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
double *red_X, double *red_Y, double *red_Z, double *green_X, double *red_X, double *red_Y, double *red_Z, double *green_X,
double *green_Y, double *green_Z, double *blue_X, double *blue_Y, double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
double *blue_Z) double *blue_Z)
{ {
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0) (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{ {
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)"); png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
if (red_X != NULL) if (red_X != NULL)
*red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X, *red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
"cHRM red X"); "cHRM red X");
if (red_Y != NULL) if (red_Y != NULL)
*red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y, *red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y,
"cHRM red Y"); "cHRM red Y");
if (red_Z != NULL) if (red_Z != NULL)
*red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z, *red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z,
"cHRM red Z"); "cHRM red Z");
if (green_X != NULL) if (green_X != NULL)
*green_X = png_float(png_ptr, *green_X = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X"); info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X");
if (green_Y != NULL) if (green_Y != NULL)
*green_Y = png_float(png_ptr, *green_Y = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y"); info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y");
if (green_Z != NULL) if (green_Z != NULL)
*green_Z = png_float(png_ptr, *green_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z"); info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z");
if (blue_X != NULL) if (blue_X != NULL)
*blue_X = png_float(png_ptr, *blue_X = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X"); info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X");
if (blue_Y != NULL) if (blue_Y != NULL)
*blue_Y = png_float(png_ptr, *blue_Y = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y"); info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y");
if (blue_Z != NULL) if (blue_Z != NULL)
*blue_Z = png_float(png_ptr, *blue_Z = png_float(png_ptr,
info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z"); info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
return (PNG_INFO_cHRM); return (PNG_INFO_cHRM);
} }
@ -681,8 +692,8 @@ png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_debug1(1, "in %s retrieval function", "gAMA"); png_debug1(1, "in %s retrieval function", "gAMA");
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 && (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
file_gamma != NULL) file_gamma != NULL)
{ {
*file_gamma = info_ptr->colorspace.gamma; *file_gamma = info_ptr->colorspace.gamma;
return (PNG_INFO_gAMA); return (PNG_INFO_gAMA);
@ -704,7 +715,7 @@ png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
file_gamma != NULL) file_gamma != NULL)
{ {
*file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma, *file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
"png_get_gAMA"); "png_get_gAMA");
return (PNG_INFO_gAMA); return (PNG_INFO_gAMA);
} }
@ -741,8 +752,7 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_iCCP) != 0 && (info_ptr->valid & PNG_INFO_iCCP) != 0 &&
name != NULL && compression_type != NULL && profile != NULL && name != NULL && profile != NULL && proflen != NULL)
proflen != NULL)
{ {
*name = info_ptr->iccp_name; *name = info_ptr->iccp_name;
*profile = info_ptr->iccp_profile; *profile = info_ptr->iccp_profile;
@ -750,11 +760,13 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
/* This is somewhat irrelevant since the profile data returned has /* This is somewhat irrelevant since the profile data returned has
* actually been uncompressed. * actually been uncompressed.
*/ */
*compression_type = PNG_COMPRESSION_TYPE_BASE; if (compression_type != NULL)
*compression_type = PNG_COMPRESSION_TYPE_BASE;
return (PNG_INFO_iCCP); return (PNG_INFO_iCCP);
} }
return (0); return (0);
} }
#endif #endif
@ -773,6 +785,35 @@ png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
} }
#endif #endif
#ifdef PNG_eXIf_SUPPORTED
png_uint_32 PNGAPI
png_get_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep *exif)
{
png_warning(png_ptr, "png_get_eXIf does not work; use png_get_eXIf_1");
PNG_UNUSED(info_ptr)
PNG_UNUSED(exif)
return 0;
}
png_uint_32 PNGAPI
png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
png_uint_32 *num_exif, png_bytep *exif)
{
png_debug1(1, "in %s retrieval function", "eXIf");
if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_eXIf) != 0 && exif != NULL)
{
*num_exif = info_ptr->num_exif;
*exif = info_ptr->exif;
return (PNG_INFO_eXIf);
}
return (0);
}
#endif
#ifdef PNG_hIST_SUPPORTED #ifdef PNG_hIST_SUPPORTED
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr, png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
@ -901,7 +942,7 @@ png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
*/ */
*width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width"); *width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
*height = png_fixed(png_ptr, atof(info_ptr->scal_s_height), *height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
"sCAL height"); "sCAL height");
return (PNG_INFO_sCAL); return (PNG_INFO_sCAL);
} }
@ -1121,7 +1162,7 @@ png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr,
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED #ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
png_byte PNGAPI png_byte PNGAPI
png_get_rgb_to_gray_status (png_const_structrp png_ptr) png_get_rgb_to_gray_status(png_const_structrp png_ptr)
{ {
return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0); return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0);
} }
@ -1135,26 +1176,26 @@ png_get_user_chunk_ptr(png_const_structrp png_ptr)
} }
#endif #endif
png_size_t PNGAPI size_t PNGAPI
png_get_compression_buffer_size(png_const_structrp png_ptr) png_get_compression_buffer_size(png_const_structrp png_ptr)
{ {
if (png_ptr == NULL) if (png_ptr == NULL)
return 0; return 0;
#ifdef PNG_WRITE_SUPPORTED #ifdef PNG_WRITE_SUPPORTED
if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0) if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
#endif #endif
{ {
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED #ifdef PNG_SEQUENTIAL_READ_SUPPORTED
return png_ptr->IDAT_read_size; return png_ptr->IDAT_read_size;
#else #else
return PNG_IDAT_READ_SIZE; return PNG_IDAT_READ_SIZE;
#endif #endif
} }
#ifdef PNG_WRITE_SUPPORTED #ifdef PNG_WRITE_SUPPORTED
else else
return png_ptr->zbuffer_size; return png_ptr->zbuffer_size;
#endif #endif
} }
@ -1162,27 +1203,27 @@ png_get_compression_buffer_size(png_const_structrp png_ptr)
/* These functions were added to libpng 1.2.6 and were enabled /* These functions were added to libpng 1.2.6 and were enabled
* by default in libpng-1.4.0 */ * by default in libpng-1.4.0 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_user_width_max (png_const_structrp png_ptr) png_get_user_width_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_width_max : 0); return (png_ptr ? png_ptr->user_width_max : 0);
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_user_height_max (png_const_structrp png_ptr) png_get_user_height_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_height_max : 0); return (png_ptr ? png_ptr->user_height_max : 0);
} }
/* This function was added to libpng 1.4.0 */ /* This function was added to libpng 1.4.0 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_chunk_cache_max (png_const_structrp png_ptr) png_get_chunk_cache_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_chunk_cache_max : 0); return (png_ptr ? png_ptr->user_chunk_cache_max : 0);
} }
/* This function was added to libpng 1.4.1 */ /* This function was added to libpng 1.4.1 */
png_alloc_size_t PNGAPI png_alloc_size_t PNGAPI
png_get_chunk_malloc_max (png_const_structrp png_ptr) png_get_chunk_malloc_max(png_const_structrp png_ptr)
{ {
return (png_ptr ? png_ptr->user_chunk_malloc_max : 0); return (png_ptr ? png_ptr->user_chunk_malloc_max : 0);
} }
@ -1191,13 +1232,13 @@ png_get_chunk_malloc_max (png_const_structrp png_ptr)
/* These functions were added to libpng 1.4.0 */ /* These functions were added to libpng 1.4.0 */
#ifdef PNG_IO_STATE_SUPPORTED #ifdef PNG_IO_STATE_SUPPORTED
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_io_state (png_const_structrp png_ptr) png_get_io_state(png_const_structrp png_ptr)
{ {
return png_ptr->io_state; return png_ptr->io_state;
} }
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_io_chunk_type (png_const_structrp png_ptr) png_get_io_chunk_type(png_const_structrp png_ptr)
{ {
return png_ptr->chunk_name; return png_ptr->chunk_name;
} }

28
3rdparty/libpng/pnginfo.h vendored
View File

@ -1,10 +1,10 @@
/* pnginfo.h - header file for PNG reference library /* pnginfo.h - header file for PNG reference library
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2013,2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -55,10 +55,10 @@
struct png_info_def struct png_info_def
{ {
/* The following are necessary for every PNG file */ /* The following are necessary for every PNG file */
png_uint_32 width; /* width of image in pixels (from IHDR) */ png_uint_32 width; /* width of image in pixels (from IHDR) */
png_uint_32 height; /* height of image in pixels (from IHDR) */ png_uint_32 height; /* height of image in pixels (from IHDR) */
png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */ png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */
png_size_t rowbytes; /* bytes needed to hold an untransformed row */ size_t rowbytes; /* bytes needed to hold an untransformed row */
png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */ png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */
png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */ png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */
png_uint_16 num_trans; /* number of transparent palette color (tRNS) */ png_uint_16 num_trans; /* number of transparent palette color (tRNS) */
@ -185,6 +185,14 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */ png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */
#endif #endif
#ifdef PNG_eXIf_SUPPORTED
int num_exif; /* Added at libpng-1.6.31 */
png_bytep exif;
# ifdef PNG_READ_eXIf_SUPPORTED
png_bytep eXIf_buf; /* Added at libpng-1.6.32 */
# endif
#endif
#ifdef PNG_hIST_SUPPORTED #ifdef PNG_hIST_SUPPORTED
/* The hIST chunk contains the relative frequency or importance of the /* The hIST chunk contains the relative frequency or importance of the
* various palette entries, so that a viewer can intelligently select a * various palette entries, so that a viewer can intelligently select a
@ -223,7 +231,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
/* Storage for unknown chunks that the library doesn't recognize. */ /* Storage for unknown chunks that the library doesn't recognize. */
png_unknown_chunkp unknown_chunks; png_unknown_chunkp unknown_chunks;
/* The type of this field is limited by the type of /* The type of this field is limited by the type of
* png_struct::user_chunk_cache_max, else overflow can occur. * png_struct::user_chunk_cache_max, else overflow can occur.
*/ */
int unknown_chunks_num; int unknown_chunks_num;
@ -239,7 +247,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
/* The sCAL chunk describes the actual physical dimensions of the /* The sCAL chunk describes the actual physical dimensions of the
* subject matter of the graphic. The chunk contains a unit specification * subject matter of the graphic. The chunk contains a unit specification
* a byte value, and two ASCII strings representing floating-point * a byte value, and two ASCII strings representing floating-point
* values. The values are width and height corresponsing to one pixel * values. The values are width and height corresponding to one pixel
* in the image. Data values are valid if (valid & PNG_INFO_sCAL) is * in the image. Data values are valid if (valid & PNG_INFO_sCAL) is
* non-zero. * non-zero.
*/ */

21
3rdparty/libpng/pnglibconf.h vendored
View File

@ -1,10 +1,9 @@
/* libpng 1.6.17 STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */ /* pnglibconf.h - library build configuration */
/* Libpng version 1.6.17 - March 26, 2015 */ /* libpng version 1.6.40 */
/* Copyright (c) 1998-2014 Glenn Randers-Pehrson */ /* Copyright (c) 2018-2023 Cosmin Truta */
/* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */ /* This code is released under the libpng license. */
/* For conditions of distribution and use, see the disclaimer */ /* For conditions of distribution and use, see the disclaimer */
@ -44,6 +43,8 @@
#define PNG_IO_STATE_SUPPORTED #define PNG_IO_STATE_SUPPORTED
#define PNG_MNG_FEATURES_SUPPORTED #define PNG_MNG_FEATURES_SUPPORTED
#define PNG_POINTER_INDEXING_SUPPORTED #define PNG_POINTER_INDEXING_SUPPORTED
/*#undef PNG_POWERPC_VSX_API_SUPPORTED*/
/*#undef PNG_POWERPC_VSX_CHECK_SUPPORTED*/
#define PNG_PROGRESSIVE_READ_SUPPORTED #define PNG_PROGRESSIVE_READ_SUPPORTED
#define PNG_READ_16BIT_SUPPORTED #define PNG_READ_16BIT_SUPPORTED
#define PNG_READ_ALPHA_MODE_SUPPORTED #define PNG_READ_ALPHA_MODE_SUPPORTED
@ -82,6 +83,7 @@
#define PNG_READ_USER_TRANSFORM_SUPPORTED #define PNG_READ_USER_TRANSFORM_SUPPORTED
#define PNG_READ_bKGD_SUPPORTED #define PNG_READ_bKGD_SUPPORTED
#define PNG_READ_cHRM_SUPPORTED #define PNG_READ_cHRM_SUPPORTED
#define PNG_READ_eXIf_SUPPORTED
#define PNG_READ_gAMA_SUPPORTED #define PNG_READ_gAMA_SUPPORTED
#define PNG_READ_hIST_SUPPORTED #define PNG_READ_hIST_SUPPORTED
#define PNG_READ_iCCP_SUPPORTED #define PNG_READ_iCCP_SUPPORTED
@ -101,8 +103,6 @@
#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED #define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED #define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SETJMP_SUPPORTED #define PNG_SETJMP_SUPPORTED
#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
#define PNG_SET_OPTION_SUPPORTED #define PNG_SET_OPTION_SUPPORTED
#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED #define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SET_USER_LIMITS_SUPPORTED #define PNG_SET_USER_LIMITS_SUPPORTED
@ -111,6 +111,7 @@
#define PNG_SIMPLIFIED_READ_SUPPORTED #define PNG_SIMPLIFIED_READ_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED #define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED #define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_STDIO_SUPPORTED
#define PNG_SIMPLIFIED_WRITE_SUPPORTED #define PNG_SIMPLIFIED_WRITE_SUPPORTED
#define PNG_STDIO_SUPPORTED #define PNG_STDIO_SUPPORTED
#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED #define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
@ -152,6 +153,7 @@
#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED #define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#define PNG_WRITE_bKGD_SUPPORTED #define PNG_WRITE_bKGD_SUPPORTED
#define PNG_WRITE_cHRM_SUPPORTED #define PNG_WRITE_cHRM_SUPPORTED
#define PNG_WRITE_eXIf_SUPPORTED
#define PNG_WRITE_gAMA_SUPPORTED #define PNG_WRITE_gAMA_SUPPORTED
#define PNG_WRITE_hIST_SUPPORTED #define PNG_WRITE_hIST_SUPPORTED
#define PNG_WRITE_iCCP_SUPPORTED #define PNG_WRITE_iCCP_SUPPORTED
@ -169,6 +171,7 @@
#define PNG_WRITE_zTXt_SUPPORTED #define PNG_WRITE_zTXt_SUPPORTED
#define PNG_bKGD_SUPPORTED #define PNG_bKGD_SUPPORTED
#define PNG_cHRM_SUPPORTED #define PNG_cHRM_SUPPORTED
#define PNG_eXIf_SUPPORTED
#define PNG_gAMA_SUPPORTED #define PNG_gAMA_SUPPORTED
#define PNG_hIST_SUPPORTED #define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED #define PNG_iCCP_SUPPORTED
@ -187,11 +190,14 @@
/* end of options */ /* end of options */
/* settings */ /* settings */
#define PNG_API_RULE 0 #define PNG_API_RULE 0
#define PNG_COST_SHIFT 3
#define PNG_DEFAULT_READ_MACROS 1 #define PNG_DEFAULT_READ_MACROS 1
#define PNG_GAMMA_THRESHOLD_FIXED 5000 #define PNG_GAMMA_THRESHOLD_FIXED 5000
#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE #define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
#define PNG_INFLATE_BUF_SIZE 1024 #define PNG_INFLATE_BUF_SIZE 1024
#define PNG_LINKAGE_API extern
#define PNG_LINKAGE_CALLBACK extern
#define PNG_LINKAGE_DATA extern
#define PNG_LINKAGE_FUNCTION extern
#define PNG_MAX_GAMMA_8 11 #define PNG_MAX_GAMMA_8 11
#define PNG_QUANTIZE_BLUE_BITS 5 #define PNG_QUANTIZE_BLUE_BITS 5
#define PNG_QUANTIZE_GREEN_BITS 5 #define PNG_QUANTIZE_GREEN_BITS 5
@ -202,7 +208,6 @@
#define PNG_USER_CHUNK_MALLOC_MAX 8000000 #define PNG_USER_CHUNK_MALLOC_MAX 8000000
#define PNG_USER_HEIGHT_MAX 1000000 #define PNG_USER_HEIGHT_MAX 1000000
#define PNG_USER_WIDTH_MAX 1000000 #define PNG_USER_WIDTH_MAX 1000000
#define PNG_WEIGHT_SHIFT 8
#define PNG_ZBUF_SIZE 8192 #define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_VERNUM 0 /* unknown */ #define PNG_ZLIB_VERNUM 0 /* unknown */
#define PNG_Z_DEFAULT_COMPRESSION (-1) #define PNG_Z_DEFAULT_COMPRESSION (-1)

29
3rdparty/libpng/pngmem.c vendored
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@ -1,10 +1,10 @@
/* pngmem.c - stub functions for memory allocation /* pngmem.c - stub functions for memory allocation
* *
* Last changed in libpng 1.6.15 [November 20, 2014] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2014 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2014,2016 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -66,7 +66,7 @@ png_calloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED)
*/ */
PNG_FUNCTION(png_voidp /* PRIVATE */, PNG_FUNCTION(png_voidp /* PRIVATE */,
png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size), png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_ALLOCATED) PNG_ALLOCATED)
{ {
/* Moved to png_malloc_base from png_malloc_default in 1.6.0; the DOS /* Moved to png_malloc_base from png_malloc_default in 1.6.0; the DOS
* allocators have also been removed in 1.6.0, so any 16-bit system now has * allocators have also been removed in 1.6.0, so any 16-bit system now has
@ -77,6 +77,9 @@ png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_UNUSED(png_ptr) PNG_UNUSED(png_ptr)
#endif #endif
/* Some compilers complain that this is always true. However, it
* can be false when integer overflow happens.
*/
if (size > 0 && size <= PNG_SIZE_MAX if (size > 0 && size <= PNG_SIZE_MAX
# ifdef PNG_MAX_MALLOC_64K # ifdef PNG_MAX_MALLOC_64K
&& size <= 65536U && size <= 65536U
@ -104,9 +107,9 @@ png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size),
*/ */
static png_voidp static png_voidp
png_malloc_array_checked(png_const_structrp png_ptr, int nelements, png_malloc_array_checked(png_const_structrp png_ptr, int nelements,
size_t element_size) size_t element_size)
{ {
png_alloc_size_t req = nelements; /* known to be > 0 */ png_alloc_size_t req = (png_alloc_size_t)nelements; /* known to be > 0 */
if (req <= PNG_SIZE_MAX/element_size) if (req <= PNG_SIZE_MAX/element_size)
return png_malloc_base(png_ptr, req * element_size); return png_malloc_base(png_ptr, req * element_size);
@ -117,7 +120,7 @@ png_malloc_array_checked(png_const_structrp png_ptr, int nelements,
PNG_FUNCTION(png_voidp /* PRIVATE */, PNG_FUNCTION(png_voidp /* PRIVATE */,
png_malloc_array,(png_const_structrp png_ptr, int nelements, png_malloc_array,(png_const_structrp png_ptr, int nelements,
size_t element_size),PNG_ALLOCATED) size_t element_size),PNG_ALLOCATED)
{ {
if (nelements <= 0 || element_size == 0) if (nelements <= 0 || element_size == 0)
png_error(png_ptr, "internal error: array alloc"); png_error(png_ptr, "internal error: array alloc");
@ -127,7 +130,7 @@ png_malloc_array,(png_const_structrp png_ptr, int nelements,
PNG_FUNCTION(png_voidp /* PRIVATE */, PNG_FUNCTION(png_voidp /* PRIVATE */,
png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array, png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED) int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED)
{ {
/* These are internal errors: */ /* These are internal errors: */
if (add_elements <= 0 || element_size == 0 || old_elements < 0 || if (add_elements <= 0 || element_size == 0 || old_elements < 0 ||
@ -140,7 +143,7 @@ png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
if (add_elements <= INT_MAX - old_elements) if (add_elements <= INT_MAX - old_elements)
{ {
png_voidp new_array = png_malloc_array_checked(png_ptr, png_voidp new_array = png_malloc_array_checked(png_ptr,
old_elements+add_elements, element_size); old_elements+add_elements, element_size);
if (new_array != NULL) if (new_array != NULL)
{ {
@ -151,7 +154,7 @@ png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array,
memcpy(new_array, old_array, element_size*(unsigned)old_elements); memcpy(new_array, old_array, element_size*(unsigned)old_elements);
memset((char*)new_array + element_size*(unsigned)old_elements, 0, memset((char*)new_array + element_size*(unsigned)old_elements, 0,
element_size*(unsigned)add_elements); element_size*(unsigned)add_elements);
return new_array; return new_array;
} }
@ -184,7 +187,7 @@ png_malloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED)
#ifdef PNG_USER_MEM_SUPPORTED #ifdef PNG_USER_MEM_SUPPORTED
PNG_FUNCTION(png_voidp,PNGAPI PNG_FUNCTION(png_voidp,PNGAPI
png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size), png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_ALLOCATED PNG_DEPRECATED) PNG_ALLOCATED PNG_DEPRECATED)
{ {
png_voidp ret; png_voidp ret;
@ -207,7 +210,7 @@ png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size),
*/ */
PNG_FUNCTION(png_voidp,PNGAPI PNG_FUNCTION(png_voidp,PNGAPI
png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size), png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size),
PNG_ALLOCATED) PNG_ALLOCATED)
{ {
if (png_ptr != NULL) if (png_ptr != NULL)
{ {

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192
3rdparty/libpng/pngpread.c vendored
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@ -1,10 +1,10 @@
/* pngpread.c - read a png file in push mode /* pngpread.c - read a png file in push mode
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -19,7 +19,6 @@
#define PNG_READ_SIG_MODE 0 #define PNG_READ_SIG_MODE 0
#define PNG_READ_CHUNK_MODE 1 #define PNG_READ_CHUNK_MODE 1
#define PNG_READ_IDAT_MODE 2 #define PNG_READ_IDAT_MODE 2
#define PNG_SKIP_MODE 3
#define PNG_READ_tEXt_MODE 4 #define PNG_READ_tEXt_MODE 4
#define PNG_READ_zTXt_MODE 5 #define PNG_READ_zTXt_MODE 5
#define PNG_READ_DONE_MODE 6 #define PNG_READ_DONE_MODE 6
@ -35,7 +34,7 @@ if (png_ptr->buffer_size < N) \
void PNGAPI void PNGAPI
png_process_data(png_structrp png_ptr, png_inforp info_ptr, png_process_data(png_structrp png_ptr, png_inforp info_ptr,
png_bytep buffer, png_size_t buffer_size) png_bytep buffer, size_t buffer_size)
{ {
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
@ -48,7 +47,7 @@ png_process_data(png_structrp png_ptr, png_inforp info_ptr,
} }
} }
png_size_t PNGAPI size_t PNGAPI
png_process_data_pause(png_structrp png_ptr, int save) png_process_data_pause(png_structrp png_ptr, int save)
{ {
if (png_ptr != NULL) if (png_ptr != NULL)
@ -61,7 +60,7 @@ png_process_data_pause(png_structrp png_ptr, int save)
else else
{ {
/* This includes any pending saved bytes: */ /* This includes any pending saved bytes: */
png_size_t remaining = png_ptr->buffer_size; size_t remaining = png_ptr->buffer_size;
png_ptr->buffer_size = 0; png_ptr->buffer_size = 0;
/* So subtract the saved buffer size, unless all the data /* So subtract the saved buffer size, unless all the data
@ -78,32 +77,14 @@ png_process_data_pause(png_structrp png_ptr, int save)
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_process_data_skip(png_structrp png_ptr) png_process_data_skip(png_structrp png_ptr)
{ {
png_uint_32 remaining = 0; /* TODO: Deprecate and remove this API.
* Somewhere the implementation of this seems to have been lost,
if (png_ptr != NULL && png_ptr->process_mode == PNG_SKIP_MODE && * or abandoned. It was only to support some internal back-door access
png_ptr->skip_length > 0) * to png_struct) in libpng-1.4.x.
{ */
/* At the end of png_process_data the buffer size must be 0 (see the loop png_app_warning(png_ptr,
* above) so we can detect a broken call here: "png_process_data_skip is not implemented in any current version of libpng");
*/ return 0;
if (png_ptr->buffer_size != 0)
png_error(png_ptr,
"png_process_data_skip called inside png_process_data");
/* If is impossible for there to be a saved buffer at this point -
* otherwise we could not be in SKIP mode. This will also happen if
* png_process_skip is called inside png_process_data (but only very
* rarely.)
*/
if (png_ptr->save_buffer_size != 0)
png_error(png_ptr, "png_process_data_skip called with saved data");
remaining = png_ptr->skip_length;
png_ptr->skip_length = 0;
png_ptr->process_mode = PNG_READ_CHUNK_MODE;
}
return remaining;
} }
/* What we do with the incoming data depends on what we were previously /* What we do with the incoming data depends on what we were previously
@ -135,12 +116,6 @@ png_process_some_data(png_structrp png_ptr, png_inforp info_ptr)
break; break;
} }
case PNG_SKIP_MODE:
{
png_push_crc_finish(png_ptr);
break;
}
default: default:
{ {
png_ptr->buffer_size = 0; png_ptr->buffer_size = 0;
@ -158,8 +133,8 @@ png_process_some_data(png_structrp png_ptr, png_inforp info_ptr)
void /* PRIVATE */ void /* PRIVATE */
png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr) png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
{ {
png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */ size_t num_checked = png_ptr->sig_bytes; /* SAFE, does not exceed 8 */
num_to_check = 8 - num_checked; size_t num_to_check = 8 - num_checked;
if (png_ptr->buffer_size < num_to_check) if (png_ptr->buffer_size < num_to_check)
{ {
@ -214,6 +189,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
png_crc_read(png_ptr, chunk_tag, 4); png_crc_read(png_ptr, chunk_tag, 4);
png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag);
png_check_chunk_name(png_ptr, png_ptr->chunk_name); png_check_chunk_name(png_ptr, png_ptr->chunk_name);
png_check_chunk_length(png_ptr, png_ptr->push_length);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
} }
@ -235,12 +211,14 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
(png_ptr->mode & PNG_HAVE_PLTE) == 0) (png_ptr->mode & PNG_HAVE_PLTE) == 0)
png_error(png_ptr, "Missing PLTE before IDAT"); png_error(png_ptr, "Missing PLTE before IDAT");
png_ptr->mode |= PNG_HAVE_IDAT;
png_ptr->process_mode = PNG_READ_IDAT_MODE; png_ptr->process_mode = PNG_READ_IDAT_MODE;
if ((png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) == 0) if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
if (png_ptr->push_length == 0) if ((png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) == 0)
return; if (png_ptr->push_length == 0)
return;
png_ptr->mode |= PNG_HAVE_IDAT;
if ((png_ptr->mode & PNG_AFTER_IDAT) != 0) if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
png_benign_error(png_ptr, "Too many IDATs found"); png_benign_error(png_ptr, "Too many IDATs found");
@ -433,77 +411,14 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
{ {
PNG_PUSH_SAVE_BUFFER_IF_FULL PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length,
PNG_HANDLE_CHUNK_AS_DEFAULT); PNG_HANDLE_CHUNK_AS_DEFAULT);
} }
png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
} }
void /* PRIVATE */
png_push_crc_skip(png_structrp png_ptr, png_uint_32 skip)
{
png_ptr->process_mode = PNG_SKIP_MODE;
png_ptr->skip_length = skip;
}
void /* PRIVATE */
png_push_crc_finish(png_structrp png_ptr)
{
if (png_ptr->skip_length != 0 && png_ptr->save_buffer_size != 0)
{
png_size_t save_size = png_ptr->save_buffer_size;
png_uint_32 skip_length = png_ptr->skip_length;
/* We want the smaller of 'skip_length' and 'save_buffer_size', but
* they are of different types and we don't know which variable has the
* fewest bits. Carefully select the smaller and cast it to the type of
* the larger - this cannot overflow. Do not cast in the following test
* - it will break on either 16 or 64 bit platforms.
*/
if (skip_length < save_size)
save_size = (png_size_t)skip_length;
else
skip_length = (png_uint_32)save_size;
png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size);
png_ptr->skip_length -= skip_length;
png_ptr->buffer_size -= save_size;
png_ptr->save_buffer_size -= save_size;
png_ptr->save_buffer_ptr += save_size;
}
if (png_ptr->skip_length != 0 && png_ptr->current_buffer_size != 0)
{
png_size_t save_size = png_ptr->current_buffer_size;
png_uint_32 skip_length = png_ptr->skip_length;
/* We want the smaller of 'skip_length' and 'current_buffer_size', here,
* the same problem exists as above and the same solution.
*/
if (skip_length < save_size)
save_size = (png_size_t)skip_length;
else
skip_length = (png_uint_32)save_size;
png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
png_ptr->skip_length -= skip_length;
png_ptr->buffer_size -= save_size;
png_ptr->current_buffer_size -= save_size;
png_ptr->current_buffer_ptr += save_size;
}
if (png_ptr->skip_length == 0)
{
PNG_PUSH_SAVE_BUFFER_IF_LT(4)
png_crc_finish(png_ptr, 0);
png_ptr->process_mode = PNG_READ_CHUNK_MODE;
}
}
void PNGCBAPI void PNGCBAPI
png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length) png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, size_t length)
{ {
png_bytep ptr; png_bytep ptr;
@ -513,7 +428,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
ptr = buffer; ptr = buffer;
if (png_ptr->save_buffer_size != 0) if (png_ptr->save_buffer_size != 0)
{ {
png_size_t save_size; size_t save_size;
if (length < png_ptr->save_buffer_size) if (length < png_ptr->save_buffer_size)
save_size = length; save_size = length;
@ -530,7 +445,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
} }
if (length != 0 && png_ptr->current_buffer_size != 0) if (length != 0 && png_ptr->current_buffer_size != 0)
{ {
png_size_t save_size; size_t save_size;
if (length < png_ptr->current_buffer_size) if (length < png_ptr->current_buffer_size)
save_size = length; save_size = length;
@ -552,7 +467,7 @@ png_push_save_buffer(png_structrp png_ptr)
{ {
if (png_ptr->save_buffer_ptr != png_ptr->save_buffer) if (png_ptr->save_buffer_ptr != png_ptr->save_buffer)
{ {
png_size_t i, istop; size_t i, istop;
png_bytep sp; png_bytep sp;
png_bytep dp; png_bytep dp;
@ -567,7 +482,7 @@ png_push_save_buffer(png_structrp png_ptr)
if (png_ptr->save_buffer_size + png_ptr->current_buffer_size > if (png_ptr->save_buffer_size + png_ptr->current_buffer_size >
png_ptr->save_buffer_max) png_ptr->save_buffer_max)
{ {
png_size_t new_max; size_t new_max;
png_bytep old_buffer; png_bytep old_buffer;
if (png_ptr->save_buffer_size > PNG_SIZE_MAX - if (png_ptr->save_buffer_size > PNG_SIZE_MAX -
@ -579,18 +494,19 @@ png_push_save_buffer(png_structrp png_ptr)
new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256; new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
old_buffer = png_ptr->save_buffer; old_buffer = png_ptr->save_buffer;
png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr, png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
(png_size_t)new_max); (size_t)new_max);
if (png_ptr->save_buffer == NULL) if (png_ptr->save_buffer == NULL)
{ {
png_free(png_ptr, old_buffer); png_free(png_ptr, old_buffer);
old_buffer = NULL;
png_error(png_ptr, "Insufficient memory for save_buffer"); png_error(png_ptr, "Insufficient memory for save_buffer");
} }
memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); if (old_buffer)
memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size);
else if (png_ptr->save_buffer_size)
png_error(png_ptr, "save_buffer error");
png_free(png_ptr, old_buffer); png_free(png_ptr, old_buffer);
old_buffer = NULL;
png_ptr->save_buffer_max = new_max; png_ptr->save_buffer_max = new_max;
} }
if (png_ptr->current_buffer_size) if (png_ptr->current_buffer_size)
@ -606,7 +522,7 @@ png_push_save_buffer(png_structrp png_ptr)
void /* PRIVATE */ void /* PRIVATE */
png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer, png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer,
png_size_t buffer_length) size_t buffer_length)
{ {
png_ptr->current_buffer = buffer; png_ptr->current_buffer = buffer;
png_ptr->current_buffer_size = buffer_length; png_ptr->current_buffer_size = buffer_length;
@ -646,17 +562,17 @@ png_push_read_IDAT(png_structrp png_ptr)
if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0) if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0)
{ {
png_size_t save_size = png_ptr->save_buffer_size; size_t save_size = png_ptr->save_buffer_size;
png_uint_32 idat_size = png_ptr->idat_size; png_uint_32 idat_size = png_ptr->idat_size;
/* We want the smaller of 'idat_size' and 'current_buffer_size', but they /* We want the smaller of 'idat_size' and 'current_buffer_size', but they
* are of different types and we don't know which variable has the fewest * are of different types and we don't know which variable has the fewest
* bits. Carefully select the smaller and cast it to the type of the * bits. Carefully select the smaller and cast it to the type of the
* larger - this cannot overflow. Do not cast in the following test - it * larger - this cannot overflow. Do not cast in the following test - it
* will break on either 16 or 64 bit platforms. * will break on either 16-bit or 64-bit platforms.
*/ */
if (idat_size < save_size) if (idat_size < save_size)
save_size = (png_size_t)idat_size; save_size = (size_t)idat_size;
else else
idat_size = (png_uint_32)save_size; idat_size = (png_uint_32)save_size;
@ -673,7 +589,7 @@ png_push_read_IDAT(png_structrp png_ptr)
if (png_ptr->idat_size != 0 && png_ptr->current_buffer_size != 0) if (png_ptr->idat_size != 0 && png_ptr->current_buffer_size != 0)
{ {
png_size_t save_size = png_ptr->current_buffer_size; size_t save_size = png_ptr->current_buffer_size;
png_uint_32 idat_size = png_ptr->idat_size; png_uint_32 idat_size = png_ptr->idat_size;
/* We want the smaller of 'idat_size' and 'current_buffer_size', but they /* We want the smaller of 'idat_size' and 'current_buffer_size', but they
@ -682,7 +598,7 @@ png_push_read_IDAT(png_structrp png_ptr)
* larger - this cannot overflow. * larger - this cannot overflow.
*/ */
if (idat_size < save_size) if (idat_size < save_size)
save_size = (png_size_t)idat_size; save_size = (size_t)idat_size;
else else
idat_size = (png_uint_32)save_size; idat_size = (png_uint_32)save_size;
@ -696,6 +612,7 @@ png_push_read_IDAT(png_structrp png_ptr)
png_ptr->current_buffer_size -= save_size; png_ptr->current_buffer_size -= save_size;
png_ptr->current_buffer_ptr += save_size; png_ptr->current_buffer_ptr += save_size;
} }
if (png_ptr->idat_size == 0) if (png_ptr->idat_size == 0)
{ {
PNG_PUSH_SAVE_BUFFER_IF_LT(4) PNG_PUSH_SAVE_BUFFER_IF_LT(4)
@ -708,7 +625,7 @@ png_push_read_IDAT(png_structrp png_ptr)
void /* PRIVATE */ void /* PRIVATE */
png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer, png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
png_size_t buffer_length) size_t buffer_length)
{ {
/* The caller checks for a non-zero buffer length. */ /* The caller checks for a non-zero buffer length. */
if (!(buffer_length > 0) || buffer == NULL) if (!(buffer_length > 0) || buffer == NULL)
@ -751,7 +668,7 @@ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
* change the current behavior (see comments in inflate.c * change the current behavior (see comments in inflate.c
* for why this doesn't happen at present with zlib 1.2.5). * for why this doesn't happen at present with zlib 1.2.5).
*/ */
ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH); ret = PNG_INFLATE(png_ptr, Z_SYNC_FLUSH);
/* Check for any failure before proceeding. */ /* Check for any failure before proceeding. */
if (ret != Z_OK && ret != Z_STREAM_END) if (ret != Z_OK && ret != Z_STREAM_END)
@ -768,7 +685,12 @@ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
png_warning(png_ptr, "Truncated compressed data in IDAT"); png_warning(png_ptr, "Truncated compressed data in IDAT");
else else
png_error(png_ptr, "Decompression error in IDAT"); {
if (ret == Z_DATA_ERROR)
png_benign_error(png_ptr, "IDAT: ADLER32 checksum mismatch");
else
png_error(png_ptr, "Decompression error in IDAT");
}
/* Skip the check on unprocessed input */ /* Skip the check on unprocessed input */
return; return;
@ -866,7 +788,7 @@ png_push_process_row(png_structrp png_ptr)
{ {
if (png_ptr->pass < 6) if (png_ptr->pass < 6)
png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass, png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
png_ptr->transformations); png_ptr->transformations);
switch (png_ptr->pass) switch (png_ptr->pass)
{ {
@ -1050,20 +972,20 @@ png_read_push_finish_row(png_structrp png_ptr)
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */ /* Start of interlace block */
static PNG_CONST png_byte png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; static const png_byte png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
/* Offset to next interlace block */ /* Offset to next interlace block */
static PNG_CONST png_byte png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; static const png_byte png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
/* Start of interlace block in the y direction */ /* Start of interlace block in the y direction */
static PNG_CONST png_byte png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; static const png_byte png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
/* Offset to next interlace block in the y direction */ /* Offset to next interlace block in the y direction */
static PNG_CONST png_byte png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; static const png_byte png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
/* Height of interlace block. This is not currently used - if you need /* Height of interlace block. This is not currently used - if you need
* it, uncomment it here and in png.h * it, uncomment it here and in png.h
static PNG_CONST png_byte png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; static const png_byte png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
*/ */
#endif #endif
@ -1128,7 +1050,7 @@ png_push_have_row(png_structrp png_ptr, png_bytep row)
{ {
if (png_ptr->row_fn != NULL) if (png_ptr->row_fn != NULL)
(*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number, (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number,
(int)png_ptr->pass); (int)png_ptr->pass);
} }
#ifdef PNG_READ_INTERLACING_SUPPORTED #ifdef PNG_READ_INTERLACING_SUPPORTED

589
3rdparty/libpng/pngpriv.h vendored
View File

@ -1,10 +1,10 @@
/* pngpriv.h - private declarations for use inside libpng /* pngpriv.h - private declarations for use inside libpng
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -35,7 +35,9 @@
* Windows/Visual Studio) there is no effect; the OS specific tests below are * Windows/Visual Studio) there is no effect; the OS specific tests below are
* still required (as of 2011-05-02.) * still required (as of 2011-05-02.)
*/ */
#define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */ #ifndef _POSIX_SOURCE
# define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */
#endif
#ifndef PNG_VERSION_INFO_ONLY #ifndef PNG_VERSION_INFO_ONLY
/* Standard library headers not required by png.h: */ /* Standard library headers not required by png.h: */
@ -118,8 +120,12 @@
* to compile with an appropriate #error if ALIGNED_MEMORY has been turned * to compile with an appropriate #error if ALIGNED_MEMORY has been turned
* off. * off.
* *
* Note that gcc-4.9 defines __ARM_NEON instead of __ARM_NEON__, so we * Note that gcc-4.9 defines __ARM_NEON instead of the deprecated
* check both variants. * __ARM_NEON__, so we check both variants.
*
* To disable ARM_NEON optimizations entirely, and skip compiling the
* associated assembler code, pass --enable-arm-neon=no to configure
* or put -DPNG_ARM_NEON_OPT=0 in CPPFLAGS.
*/ */
# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \ # if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED) defined(PNG_ALIGNED_MEMORY_SUPPORTED)
@ -168,7 +174,10 @@
# else /* !defined __ARM_NEON__ */ # else /* !defined __ARM_NEON__ */
/* The 'intrinsics' code simply won't compile without this -mfpu=neon: /* The 'intrinsics' code simply won't compile without this -mfpu=neon:
*/ */
# define PNG_ARM_NEON_IMPLEMENTATION 2 # if !defined(__aarch64__) && !defined(_M_ARM64)
/* The assembler code currently does not work on ARM64 */
# define PNG_ARM_NEON_IMPLEMENTATION 2
# endif /* __aarch64__ */
# endif /* __ARM_NEON__ */ # endif /* __ARM_NEON__ */
# endif /* !PNG_ARM_NEON_IMPLEMENTATION */ # endif /* !PNG_ARM_NEON_IMPLEMENTATION */
@ -176,8 +185,98 @@
/* Use the intrinsics code by default. */ /* Use the intrinsics code by default. */
# define PNG_ARM_NEON_IMPLEMENTATION 1 # define PNG_ARM_NEON_IMPLEMENTATION 1
# endif # endif
#else /* PNG_ARM_NEON_OPT == 0 */
# define PNG_ARM_NEON_IMPLEMENTATION 0
#endif /* PNG_ARM_NEON_OPT > 0 */ #endif /* PNG_ARM_NEON_OPT > 0 */
#ifndef PNG_MIPS_MSA_OPT
# if defined(__mips_msa) && (__mips_isa_rev >= 5) && defined(PNG_ALIGNED_MEMORY_SUPPORTED)
# define PNG_MIPS_MSA_OPT 2
# else
# define PNG_MIPS_MSA_OPT 0
# endif
#endif
#ifndef PNG_POWERPC_VSX_OPT
# if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__)
# define PNG_POWERPC_VSX_OPT 2
# else
# define PNG_POWERPC_VSX_OPT 0
# endif
#endif
#ifndef PNG_INTEL_SSE_OPT
# ifdef PNG_INTEL_SSE
/* Only check for SSE if the build configuration has been modified to
* enable SSE optimizations. This means that these optimizations will
* be off by default. See contrib/intel for more details.
*/
# if defined(__SSE4_1__) || defined(__AVX__) || defined(__SSSE3__) || \
defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
# define PNG_INTEL_SSE_OPT 1
# else
# define PNG_INTEL_SSE_OPT 0
# endif
# else
# define PNG_INTEL_SSE_OPT 0
# endif
#endif
#if PNG_INTEL_SSE_OPT > 0
# ifndef PNG_INTEL_SSE_IMPLEMENTATION
# if defined(__SSE4_1__) || defined(__AVX__)
/* We are not actually using AVX, but checking for AVX is the best
way we can detect SSE4.1 and SSSE3 on MSVC.
*/
# define PNG_INTEL_SSE_IMPLEMENTATION 3
# elif defined(__SSSE3__)
# define PNG_INTEL_SSE_IMPLEMENTATION 2
# elif defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
(defined(_M_IX86_FP) && _M_IX86_FP >= 2)
# define PNG_INTEL_SSE_IMPLEMENTATION 1
# else
# define PNG_INTEL_SSE_IMPLEMENTATION 0
# endif
# endif
# if PNG_INTEL_SSE_IMPLEMENTATION > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_sse2
# endif
#else
# define PNG_INTEL_SSE_IMPLEMENTATION 0
#endif
#if PNG_MIPS_MSA_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa
# ifndef PNG_MIPS_MSA_IMPLEMENTATION
# if defined(__mips_msa)
# if defined(__clang__)
# elif defined(__GNUC__)
# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
# define PNG_MIPS_MSA_IMPLEMENTATION 2
# endif /* no GNUC support */
# endif /* __GNUC__ */
# else /* !defined __mips_msa */
# define PNG_MIPS_MSA_IMPLEMENTATION 2
# endif /* __mips_msa */
# endif /* !PNG_MIPS_MSA_IMPLEMENTATION */
# ifndef PNG_MIPS_MSA_IMPLEMENTATION
# define PNG_MIPS_MSA_IMPLEMENTATION 1
# endif
#else
# define PNG_MIPS_MSA_IMPLEMENTATION 0
#endif /* PNG_MIPS_MSA_OPT > 0 */
#if PNG_POWERPC_VSX_OPT > 0
# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
# define PNG_POWERPC_VSX_IMPLEMENTATION 1
#else
# define PNG_POWERPC_VSX_IMPLEMENTATION 0
#endif
/* Is this a build of a DLL where compilation of the object modules requires /* Is this a build of a DLL where compilation of the object modules requires
* different preprocessor settings to those required for a simple library? If * different preprocessor settings to those required for a simple library? If
* so PNG_BUILD_DLL must be set. * so PNG_BUILD_DLL must be set.
@ -248,17 +347,18 @@
* always be used to declare an extern data or function object in this file. * always be used to declare an extern data or function object in this file.
*/ */
#ifndef PNG_INTERNAL_DATA #ifndef PNG_INTERNAL_DATA
# define PNG_INTERNAL_DATA(type, name, array) extern type name array # define PNG_INTERNAL_DATA(type, name, array) PNG_LINKAGE_DATA type name array
#endif #endif
#ifndef PNG_INTERNAL_FUNCTION #ifndef PNG_INTERNAL_FUNCTION
# define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\ # define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\
extern PNG_FUNCTION(type, name, args, PNG_EMPTY attributes) PNG_LINKAGE_FUNCTION PNG_FUNCTION(type, name, args, PNG_EMPTY attributes)
#endif #endif
#ifndef PNG_INTERNAL_CALLBACK #ifndef PNG_INTERNAL_CALLBACK
# define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\ # define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
extern PNG_FUNCTION(type, (PNGCBAPI name), args, PNG_EMPTY attributes) PNG_LINKAGE_CALLBACK PNG_FUNCTION(type, (PNGCBAPI name), args,\
PNG_EMPTY attributes)
#endif #endif
/* If floating or fixed point APIs are disabled they may still be compiled /* If floating or fixed point APIs are disabled they may still be compiled
@ -296,6 +396,22 @@
# define PNG_DLL_EXPORT # define PNG_DLL_EXPORT
#endif #endif
/* This is a global switch to set the compilation for an installed system
* (a release build). It can be set for testing debug builds to ensure that
* they will compile when the build type is switched to RC or STABLE, the
* default is just to use PNG_LIBPNG_BUILD_BASE_TYPE. Set this in CPPFLAGS
* with either:
*
* -DPNG_RELEASE_BUILD Turns on the release compile path
* -DPNG_RELEASE_BUILD=0 Turns it off
* or in your pngusr.h with
* #define PNG_RELEASE_BUILD=1 Turns on the release compile path
* #define PNG_RELEASE_BUILD=0 Turns it off
*/
#ifndef PNG_RELEASE_BUILD
# define PNG_RELEASE_BUILD (PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC)
#endif
/* SECURITY and SAFETY: /* SECURITY and SAFETY:
* *
* libpng is built with support for internal limits on image dimensions and * libpng is built with support for internal limits on image dimensions and
@ -353,25 +469,6 @@
# define png_fixed_error(s1,s2) png_err(s1) # define png_fixed_error(s1,s2) png_err(s1)
#endif #endif
/* C allows up-casts from (void*) to any pointer and (const void*) to any
* pointer to a const object. C++ regards this as a type error and requires an
* explicit, static, cast and provides the static_cast<> rune to ensure that
* const is not cast away.
*/
#ifdef __cplusplus
# define png_voidcast(type, value) static_cast<type>(value)
# define png_constcast(type, value) const_cast<type>(value)
# define png_aligncast(type, value) \
static_cast<type>(static_cast<void*>(value))
# define png_aligncastconst(type, value) \
static_cast<type>(static_cast<const void*>(value))
#else
# define png_voidcast(type, value) (value)
# define png_constcast(type, value) ((type)(value))
# define png_aligncast(type, value) ((void*)(value))
# define png_aligncastconst(type, value) ((const void*)(value))
#endif /* __cplusplus */
/* Some fixed point APIs are still required even if not exported because /* Some fixed point APIs are still required even if not exported because
* they get used by the corresponding floating point APIs. This magic * they get used by the corresponding floating point APIs. This magic
* deals with this: * deals with this:
@ -386,6 +483,26 @@
/* Other defines specific to compilers can go here. Try to keep /* Other defines specific to compilers can go here. Try to keep
* them inside an appropriate ifdef/endif pair for portability. * them inside an appropriate ifdef/endif pair for portability.
*/ */
/* C allows up-casts from (void*) to any pointer and (const void*) to any
* pointer to a const object. C++ regards this as a type error and requires an
* explicit, static, cast and provides the static_cast<> rune to ensure that
* const is not cast away.
*/
#ifdef __cplusplus
# define png_voidcast(type, value) static_cast<type>(value)
# define png_constcast(type, value) const_cast<type>(value)
# define png_aligncast(type, value) \
static_cast<type>(static_cast<void*>(value))
# define png_aligncastconst(type, value) \
static_cast<type>(static_cast<const void*>(value))
#else
# define png_voidcast(type, value) (value)
# define png_constcast(type, value) ((type)(void*)(const void*)(value))
# define png_aligncast(type, value) ((void*)(value))
# define png_aligncastconst(type, value) ((const void*)(value))
#endif /* __cplusplus */
#if defined(PNG_FLOATING_POINT_SUPPORTED) ||\ #if defined(PNG_FLOATING_POINT_SUPPORTED) ||\
defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)
/* png.c requires the following ANSI-C constants if the conversion of /* png.c requires the following ANSI-C constants if the conversion of
@ -399,10 +516,10 @@
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
/* We need to check that <math.h> hasn't already been included earlier /* We need to check that <math.h> hasn't already been included earlier
* as it seems it doesn't agree with <fp.h>, yet we should really use * as it seems it doesn't agree with <fp.h>, yet we should really use
* <fp.h> if possible. * <fp.h> if possible.
*/ */
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) # if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
# include <fp.h> # include <fp.h>
# endif # endif
@ -410,9 +527,9 @@
# include <math.h> # include <math.h>
# endif # endif
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) # if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
/* Amiga SAS/C: We must include builtin FPU functions when compiling using /* Amiga SAS/C: We must include builtin FPU functions when compiling using
* MATH=68881 * MATH=68881
*/ */
# include <m68881.h> # include <m68881.h>
# endif # endif
#endif #endif
@ -423,9 +540,8 @@
# include <alloc.h> # include <alloc.h>
#endif #endif
#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \ #if defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
defined(_WIN32) || defined(__WIN32__) # include <windows.h>
# include <windows.h> /* defines _WINDOWS_ macro */
#endif #endif
#endif /* PNG_VERSION_INFO_ONLY */ #endif /* PNG_VERSION_INFO_ONLY */
@ -434,24 +550,20 @@
* functions that are passed far data must be model-independent. * functions that are passed far data must be model-independent.
*/ */
/* Memory model/platform independent fns */ /* Platform-independent functions */
#ifndef PNG_ABORT #ifndef PNG_ABORT
# ifdef _WINDOWS_ # define PNG_ABORT() abort()
# define PNG_ABORT() ExitProcess(0)
# else
# define PNG_ABORT() abort()
# endif
#endif #endif
/* These macros may need to be architecture dependent. */ /* These macros may need to be architecture dependent. */
#define PNG_ALIGN_NONE 0 /* do not use data alignment */ #define PNG_ALIGN_NONE 0 /* do not use data alignment */
#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */ #define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */
#ifdef offsetof #ifdef offsetof
# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */ # define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */
#else #else
# define PNG_ALIGN_OFFSET -1 /* prevent the use of this */ # define PNG_ALIGN_OFFSET -1 /* prevent the use of this */
#endif #endif
#define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */ #define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */
#ifndef PNG_ALIGN_TYPE #ifndef PNG_ALIGN_TYPE
/* Default to using aligned access optimizations and requiring alignment to a /* Default to using aligned access optimizations and requiring alignment to a
@ -465,25 +577,25 @@
/* This is used because in some compiler implementations non-aligned /* This is used because in some compiler implementations non-aligned
* structure members are supported, so the offsetof approach below fails. * structure members are supported, so the offsetof approach below fails.
* Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access * Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access
* is good for performance. Do not do this unless you have tested the result * is good for performance. Do not do this unless you have tested the
* and understand it. * result and understand it.
*/ */
# define png_alignof(type) (sizeof (type)) # define png_alignof(type) (sizeof(type))
#else #else
# if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET # if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET
# define png_alignof(type) offsetof(struct{char c; type t;}, t) # define png_alignof(type) offsetof(struct{char c; type t;}, t)
# else # else
# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS # if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS
# define png_alignof(type) (1) # define png_alignof(type) 1
# endif # endif
/* Else leave png_alignof undefined to prevent use thereof */ /* Else leave png_alignof undefined to prevent use thereof */
# endif # endif
#endif #endif
/* This implicitly assumes alignment is always to a power of 2. */ /* This implicitly assumes alignment is always a multiple of 2. */
#ifdef png_alignof #ifdef png_alignof
# define png_isaligned(ptr, type)\ # define png_isaligned(ptr, type) \
((((const char*)ptr-(const char*)0) & (png_alignof(type)-1)) == 0) (((type)(size_t)((const void*)(ptr)) & (type)(png_alignof(type)-1)) == 0)
#else #else
# define png_isaligned(ptr, type) 0 # define png_isaligned(ptr, type) 0
#endif #endif
@ -500,96 +612,92 @@
* are defined in png.h because they need to be visible to applications * are defined in png.h because they need to be visible to applications
* that call png_set_unknown_chunk(). * that call png_set_unknown_chunk().
*/ */
/* #define PNG_HAVE_IHDR 0x01 (defined in png.h) */ /* #define PNG_HAVE_IHDR 0x01U (defined in png.h) */
/* #define PNG_HAVE_PLTE 0x02 (defined in png.h) */ /* #define PNG_HAVE_PLTE 0x02U (defined in png.h) */
#define PNG_HAVE_IDAT 0x04 #define PNG_HAVE_IDAT 0x04U
/* #define PNG_AFTER_IDAT 0x08 (defined in png.h) */ /* #define PNG_AFTER_IDAT 0x08U (defined in png.h) */
#define PNG_HAVE_IEND 0x10 #define PNG_HAVE_IEND 0x10U
/* 0x20 (unused) */ /* 0x20U (unused) */
/* 0x40 (unused) */ /* 0x40U (unused) */
/* 0x80 (unused) */ /* 0x80U (unused) */
#define PNG_HAVE_CHUNK_HEADER 0x100 #define PNG_HAVE_CHUNK_HEADER 0x100U
#define PNG_WROTE_tIME 0x200 #define PNG_WROTE_tIME 0x200U
#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 #define PNG_WROTE_INFO_BEFORE_PLTE 0x400U
#define PNG_BACKGROUND_IS_GRAY 0x800 #define PNG_BACKGROUND_IS_GRAY 0x800U
#define PNG_HAVE_PNG_SIGNATURE 0x1000 #define PNG_HAVE_PNG_SIGNATURE 0x1000U
#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
/* 0x4000 (unused) */ #define PNG_WROTE_eXIf 0x4000U
#define PNG_IS_READ_STRUCT 0x8000 /* Else is a write struct */ #define PNG_IS_READ_STRUCT 0x8000U /* Else is a write struct */
/* Flags for the transformations the PNG library does on the image data */ /* Flags for the transformations the PNG library does on the image data */
#define PNG_BGR 0x0001 #define PNG_BGR 0x0001U
#define PNG_INTERLACE 0x0002 #define PNG_INTERLACE 0x0002U
#define PNG_PACK 0x0004 #define PNG_PACK 0x0004U
#define PNG_SHIFT 0x0008 #define PNG_SHIFT 0x0008U
#define PNG_SWAP_BYTES 0x0010 #define PNG_SWAP_BYTES 0x0010U
#define PNG_INVERT_MONO 0x0020 #define PNG_INVERT_MONO 0x0020U
#define PNG_QUANTIZE 0x0040 #define PNG_QUANTIZE 0x0040U
#define PNG_COMPOSE 0x0080 /* Was PNG_BACKGROUND */ #define PNG_COMPOSE 0x0080U /* Was PNG_BACKGROUND */
#define PNG_BACKGROUND_EXPAND 0x0100 #define PNG_BACKGROUND_EXPAND 0x0100U
#define PNG_EXPAND_16 0x0200 /* Added to libpng 1.5.2 */ #define PNG_EXPAND_16 0x0200U /* Added to libpng 1.5.2 */
#define PNG_16_TO_8 0x0400 /* Becomes 'chop' in 1.5.4 */ #define PNG_16_TO_8 0x0400U /* Becomes 'chop' in 1.5.4 */
#define PNG_RGBA 0x0800 #define PNG_RGBA 0x0800U
#define PNG_EXPAND 0x1000 #define PNG_EXPAND 0x1000U
#define PNG_GAMMA 0x2000 #define PNG_GAMMA 0x2000U
#define PNG_GRAY_TO_RGB 0x4000 #define PNG_GRAY_TO_RGB 0x4000U
#define PNG_FILLER 0x8000 #define PNG_FILLER 0x8000U
#define PNG_PACKSWAP 0x10000 #define PNG_PACKSWAP 0x10000U
#define PNG_SWAP_ALPHA 0x20000 #define PNG_SWAP_ALPHA 0x20000U
#define PNG_STRIP_ALPHA 0x40000 #define PNG_STRIP_ALPHA 0x40000U
#define PNG_INVERT_ALPHA 0x80000 #define PNG_INVERT_ALPHA 0x80000U
#define PNG_USER_TRANSFORM 0x100000 #define PNG_USER_TRANSFORM 0x100000U
#define PNG_RGB_TO_GRAY_ERR 0x200000 #define PNG_RGB_TO_GRAY_ERR 0x200000U
#define PNG_RGB_TO_GRAY_WARN 0x400000 #define PNG_RGB_TO_GRAY_WARN 0x400000U
#define PNG_RGB_TO_GRAY 0x600000 /* two bits, RGB_TO_GRAY_ERR|WARN */ #define PNG_RGB_TO_GRAY 0x600000U /* two bits, RGB_TO_GRAY_ERR|WARN */
#define PNG_ENCODE_ALPHA 0x800000 /* Added to libpng-1.5.4 */ #define PNG_ENCODE_ALPHA 0x800000U /* Added to libpng-1.5.4 */
#define PNG_ADD_ALPHA 0x1000000 /* Added to libpng-1.2.7 */ #define PNG_ADD_ALPHA 0x1000000U /* Added to libpng-1.2.7 */
#define PNG_EXPAND_tRNS 0x2000000 /* Added to libpng-1.2.9 */ #define PNG_EXPAND_tRNS 0x2000000U /* Added to libpng-1.2.9 */
#define PNG_SCALE_16_TO_8 0x4000000 /* Added to libpng-1.5.4 */ #define PNG_SCALE_16_TO_8 0x4000000U /* Added to libpng-1.5.4 */
/* 0x8000000 unused */ /* 0x8000000U unused */
/* 0x10000000 unused */ /* 0x10000000U unused */
/* 0x20000000 unused */ /* 0x20000000U unused */
/* 0x40000000 unused */ /* 0x40000000U unused */
/* Flags for png_create_struct */ /* Flags for png_create_struct */
#define PNG_STRUCT_PNG 0x0001 #define PNG_STRUCT_PNG 0x0001U
#define PNG_STRUCT_INFO 0x0002 #define PNG_STRUCT_INFO 0x0002U
/* Scaling factor for filter heuristic weighting calculations */
#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT))
#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT))
/* Flags for the png_ptr->flags rather than declaring a byte for each one */ /* Flags for the png_ptr->flags rather than declaring a byte for each one */
#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 #define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001U
#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002 /* Added to libpng-1.6.0 */ #define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002U /* Added to libpng-1.6.0 */
/* 0x0004 unused */ /* 0x0004U unused */
#define PNG_FLAG_ZSTREAM_ENDED 0x0008 /* Added to libpng-1.6.0 */ #define PNG_FLAG_ZSTREAM_ENDED 0x0008U /* Added to libpng-1.6.0 */
/* 0x0010 unused */ /* 0x0010U unused */
/* 0x0020 unused */ /* 0x0020U unused */
#define PNG_FLAG_ROW_INIT 0x0040 #define PNG_FLAG_ROW_INIT 0x0040U
#define PNG_FLAG_FILLER_AFTER 0x0080 #define PNG_FLAG_FILLER_AFTER 0x0080U
#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 #define PNG_FLAG_CRC_ANCILLARY_USE 0x0100U
#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 #define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200U
#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 #define PNG_FLAG_CRC_CRITICAL_USE 0x0400U
#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 #define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800U
#define PNG_FLAG_ASSUME_sRGB 0x1000 /* Added to libpng-1.5.4 */ #define PNG_FLAG_ASSUME_sRGB 0x1000U /* Added to libpng-1.5.4 */
#define PNG_FLAG_OPTIMIZE_ALPHA 0x2000 /* Added to libpng-1.5.4 */ #define PNG_FLAG_OPTIMIZE_ALPHA 0x2000U /* Added to libpng-1.5.4 */
#define PNG_FLAG_DETECT_UNINITIALIZED 0x4000 /* Added to libpng-1.5.4 */ #define PNG_FLAG_DETECT_UNINITIALIZED 0x4000U /* Added to libpng-1.5.4 */
/* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000 */ /* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000U */
/* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000 */ /* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000U */
#define PNG_FLAG_LIBRARY_MISMATCH 0x20000 #define PNG_FLAG_LIBRARY_MISMATCH 0x20000U
#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000 #define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000U
#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000 #define PNG_FLAG_STRIP_ERROR_TEXT 0x80000U
#define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000 /* Added to libpng-1.4.0 */ #define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000U /* Added to libpng-1.4.0 */
#define PNG_FLAG_APP_WARNINGS_WARN 0x200000 /* Added to libpng-1.6.0 */ #define PNG_FLAG_APP_WARNINGS_WARN 0x200000U /* Added to libpng-1.6.0 */
#define PNG_FLAG_APP_ERRORS_WARN 0x400000 /* Added to libpng-1.6.0 */ #define PNG_FLAG_APP_ERRORS_WARN 0x400000U /* Added to libpng-1.6.0 */
/* 0x800000 unused */ /* 0x800000U unused */
/* 0x1000000 unused */ /* 0x1000000U unused */
/* 0x2000000 unused */ /* 0x2000000U unused */
/* 0x4000000 unused */ /* 0x4000000U unused */
/* 0x8000000 unused */ /* 0x8000000U unused */
/* 0x10000000 unused */ /* 0x10000000U unused */
/* 0x20000000 unused */ /* 0x20000000U unused */
/* 0x40000000 unused */ /* 0x40000000U unused */
#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ #define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \
PNG_FLAG_CRC_ANCILLARY_NOWARN) PNG_FLAG_CRC_ANCILLARY_NOWARN)
@ -620,8 +728,26 @@
/* Added to libpng-1.2.6 JB */ /* Added to libpng-1.2.6 JB */
#define PNG_ROWBYTES(pixel_bits, width) \ #define PNG_ROWBYTES(pixel_bits, width) \
((pixel_bits) >= 8 ? \ ((pixel_bits) >= 8 ? \
((png_size_t)(width) * (((png_size_t)(pixel_bits)) >> 3)) : \ ((size_t)(width) * (((size_t)(pixel_bits)) >> 3)) : \
(( ((png_size_t)(width) * ((png_size_t)(pixel_bits))) + 7) >> 3) ) (( ((size_t)(width) * ((size_t)(pixel_bits))) + 7) >> 3) )
/* This returns the number of trailing bits in the last byte of a row, 0 if the
* last byte is completely full of pixels. It is, in principle, (pixel_bits x
* width) % 8, but that would overflow for large 'width'. The second macro is
* the same except that it returns the number of unused bits in the last byte;
* (8-TRAILBITS), but 0 when TRAILBITS is 0.
*
* NOTE: these macros are intended to be self-evidently correct and never
* overflow on the assumption that pixel_bits is in the range 0..255. The
* arguments are evaluated only once and they can be signed (e.g. as a result of
* the integral promotions). The result of the expression always has type
* (png_uint_32), however the compiler always knows it is in the range 0..7.
*/
#define PNG_TRAILBITS(pixel_bits, width) \
(((pixel_bits) * ((width) % (png_uint_32)8)) % 8)
#define PNG_PADBITS(pixel_bits, width) \
((8 - PNG_TRAILBITS(pixel_bits, width)) % 8)
/* PNG_OUT_OF_RANGE returns true if value is outside the range /* PNG_OUT_OF_RANGE returns true if value is outside the range
* ideal-delta..ideal+delta. Each argument is evaluated twice. * ideal-delta..ideal+delta. Each argument is evaluated twice.
@ -648,7 +774,7 @@
/* The fixed point conversion performs range checking and evaluates /* The fixed point conversion performs range checking and evaluates
* its argument multiple times, so must be used with care. The * its argument multiple times, so must be used with care. The
* range checking uses the PNG specification values for a signed * range checking uses the PNG specification values for a signed
* 32 bit fixed point value except that the values are deliberately * 32-bit fixed point value except that the values are deliberately
* rounded-to-zero to an integral value - 21474 (21474.83 is roughly * rounded-to-zero to an integral value - 21474 (21474.83 is roughly
* (2^31-1) * 100000). 's' is a string that describes the value being * (2^31-1) * 100000). 's' is a string that describes the value being
* converted. * converted.
@ -716,6 +842,7 @@
#define png_PLTE PNG_U32( 80, 76, 84, 69) #define png_PLTE PNG_U32( 80, 76, 84, 69)
#define png_bKGD PNG_U32( 98, 75, 71, 68) #define png_bKGD PNG_U32( 98, 75, 71, 68)
#define png_cHRM PNG_U32( 99, 72, 82, 77) #define png_cHRM PNG_U32( 99, 72, 82, 77)
#define png_eXIf PNG_U32(101, 88, 73, 102) /* registered July 2017 */
#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */ #define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */
#define png_gAMA PNG_U32(103, 65, 77, 65) #define png_gAMA PNG_U32(103, 65, 77, 65)
#define png_gIFg PNG_U32(103, 73, 70, 103) #define png_gIFg PNG_U32(103, 73, 70, 103)
@ -790,12 +917,12 @@
* PNG files the -I directives must match. * PNG files the -I directives must match.
* *
* The most likely explanation is that you passed a -I in CFLAGS. This will * The most likely explanation is that you passed a -I in CFLAGS. This will
* not work; all the preprocessor directories and in particular all the -I * not work; all the preprocessor directives and in particular all the -I
* directives must be in CPPFLAGS. * directives must be in CPPFLAGS.
*/ */
#endif #endif
/* This is used for 16 bit gamma tables -- only the top level pointers are /* This is used for 16-bit gamma tables -- only the top level pointers are
* const; this could be changed: * const; this could be changed:
*/ */
typedef const png_uint_16p * png_const_uint_16pp; typedef const png_uint_16p * png_const_uint_16pp;
@ -919,15 +1046,15 @@ PNG_INTERNAL_FUNCTION(void,png_zfree,(voidpf png_ptr, voidpf ptr),PNG_EMPTY);
*/ */
PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr, PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr,
png_bytep data, png_size_t length),PNG_EMPTY); png_bytep data, size_t length),PNG_EMPTY);
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED #ifdef PNG_PROGRESSIVE_READ_SUPPORTED
PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr, PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr,
png_bytep buffer, png_size_t length),PNG_EMPTY); png_bytep buffer, size_t length),PNG_EMPTY);
#endif #endif
PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr, PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr,
png_bytep data, png_size_t length),PNG_EMPTY); png_bytep data, size_t length),PNG_EMPTY);
#ifdef PNG_WRITE_FLUSH_SUPPORTED #ifdef PNG_WRITE_FLUSH_SUPPORTED
# ifdef PNG_STDIO_SUPPORTED # ifdef PNG_STDIO_SUPPORTED
@ -941,7 +1068,7 @@ PNG_INTERNAL_FUNCTION(void,png_reset_crc,(png_structrp png_ptr),PNG_EMPTY);
/* Write the "data" buffer to whatever output you are using */ /* Write the "data" buffer to whatever output you are using */
PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr,
png_const_bytep data, png_size_t length),PNG_EMPTY); png_const_bytep data, size_t length),PNG_EMPTY);
/* Read and check the PNG file signature */ /* Read and check the PNG file signature */
PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr,
@ -953,7 +1080,7 @@ PNG_INTERNAL_FUNCTION(png_uint_32,png_read_chunk_header,(png_structrp png_ptr),
/* Read data from whatever input you are using into the "data" buffer */ /* Read data from whatever input you are using into the "data" buffer */
PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data, PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data,
png_size_t length),PNG_EMPTY); size_t length),PNG_EMPTY);
/* Read bytes into buf, and update png_ptr->crc */ /* Read bytes into buf, and update png_ptr->crc */
PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf, PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf,
@ -971,7 +1098,7 @@ PNG_INTERNAL_FUNCTION(int,png_crc_error,(png_structrp png_ptr),PNG_EMPTY);
* since this is the maximum buffer size we can specify. * since this is the maximum buffer size we can specify.
*/ */
PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr,
png_const_bytep ptr, png_size_t length),PNG_EMPTY); png_const_bytep ptr, size_t length),PNG_EMPTY);
#ifdef PNG_WRITE_FLUSH_SUPPORTED #ifdef PNG_WRITE_FLUSH_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY);
@ -1008,7 +1135,7 @@ PNG_INTERNAL_FUNCTION(void,png_write_sBIT,(png_structrp png_ptr,
#ifdef PNG_WRITE_cHRM_SUPPORTED #ifdef PNG_WRITE_cHRM_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_write_cHRM_fixed,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_write_cHRM_fixed,(png_structrp png_ptr,
const png_xy *xy), PNG_EMPTY); const png_xy *xy), PNG_EMPTY);
/* The xy value must have been previously validated */ /* The xy value must have been previously validated */
#endif #endif
#ifdef PNG_WRITE_sRGB_SUPPORTED #ifdef PNG_WRITE_sRGB_SUPPORTED
@ -1016,6 +1143,11 @@ PNG_INTERNAL_FUNCTION(void,png_write_sRGB,(png_structrp png_ptr,
int intent),PNG_EMPTY); int intent),PNG_EMPTY);
#endif #endif
#ifdef PNG_WRITE_eXIf_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_write_eXIf,(png_structrp png_ptr,
png_bytep exif, int num_exif),PNG_EMPTY);
#endif
#ifdef PNG_WRITE_iCCP_SUPPORTED #ifdef PNG_WRITE_iCCP_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_write_iCCP,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_write_iCCP,(png_structrp png_ptr,
png_const_charp name, png_const_bytep profile), PNG_EMPTY); png_const_charp name, png_const_bytep profile), PNG_EMPTY);
@ -1049,7 +1181,7 @@ PNG_INTERNAL_FUNCTION(void,png_write_hIST,(png_structrp png_ptr,
/* Chunks that have keywords */ /* Chunks that have keywords */
#ifdef PNG_WRITE_tEXt_SUPPORTED #ifdef PNG_WRITE_tEXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr,
png_const_charp key, png_const_charp text, png_size_t text_len),PNG_EMPTY); png_const_charp key, png_const_charp text, size_t text_len),PNG_EMPTY);
#endif #endif
#ifdef PNG_WRITE_zTXt_SUPPORTED #ifdef PNG_WRITE_zTXt_SUPPORTED
@ -1157,6 +1289,7 @@ PNG_INTERNAL_FUNCTION(void,png_do_write_interlace,(png_row_infop row_info,
PNG_INTERNAL_FUNCTION(void,png_read_filter_row,(png_structrp pp, png_row_infop PNG_INTERNAL_FUNCTION(void,png_read_filter_row,(png_structrp pp, png_row_infop
row_info, png_bytep row, png_const_bytep prev_row, int filter),PNG_EMPTY); row_info, png_bytep row, png_const_bytep prev_row, int filter),PNG_EMPTY);
#if PNG_ARM_NEON_OPT > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_neon,(png_row_infop row_info, PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_neon,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY); png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_neon,(png_row_infop PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_neon,(png_row_infop
@ -1171,6 +1304,56 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_neon,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_MIPS_MSA_OPT > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_msa,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_POWERPC_VSX_OPT > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info,
png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_vsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_vsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_vsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_vsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_vsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_vsx,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
#if PNG_INTEL_SSE_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_sse2,(png_row_infop
row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
#endif
/* Choose the best filter to use and filter the row data */ /* Choose the best filter to use and filter the row data */
PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr,
@ -1198,6 +1381,14 @@ PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr),
/* Initialize the row buffers, etc. */ /* Initialize the row buffers, etc. */
PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY);
#if ZLIB_VERNUM >= 0x1240
PNG_INTERNAL_FUNCTION(int,png_zlib_inflate,(png_structrp png_ptr, int flush),
PNG_EMPTY);
# define PNG_INFLATE(pp, flush) png_zlib_inflate(pp, flush)
#else /* Zlib < 1.2.4 */
# define PNG_INFLATE(pp, flush) inflate(&(pp)->zstream, flush)
#endif /* Zlib < 1.2.4 */
#ifdef PNG_READ_TRANSFORMS_SUPPORTED #ifdef PNG_READ_TRANSFORMS_SUPPORTED
/* Optional call to update the users info structure */ /* Optional call to update the users info structure */
PNG_INTERNAL_FUNCTION(void,png_read_transform_info,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_read_transform_info,(png_structrp png_ptr,
@ -1256,6 +1447,11 @@ PNG_INTERNAL_FUNCTION(void,png_handle_cHRM,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
#endif #endif
#ifdef PNG_READ_eXIf_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_eXIf,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
#endif
#ifdef PNG_READ_gAMA_SUPPORTED #ifdef PNG_READ_gAMA_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
@ -1331,9 +1527,12 @@ PNG_INTERNAL_FUNCTION(void,png_handle_zTXt,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
#endif #endif
PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_const_structrp png_ptr,
png_uint_32 chunk_name),PNG_EMPTY); png_uint_32 chunk_name),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_check_chunk_length,(png_const_structrp png_ptr,
png_uint_32 chunk_length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY); png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY);
/* This is the function that gets called for unknown chunks. The 'keep' /* This is the function that gets called for unknown chunks. The 'keep'
@ -1372,17 +1571,13 @@ PNG_INTERNAL_FUNCTION(void,png_push_read_chunk,(png_structrp png_ptr,
PNG_INTERNAL_FUNCTION(void,png_push_read_sig,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_read_sig,(png_structrp png_ptr,
png_inforp info_ptr),PNG_EMPTY); png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_crc_skip,(png_structrp png_ptr,
png_uint_32 length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_crc_finish,(png_structrp png_ptr),
PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr), PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr),
PNG_EMPTY); PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr,
png_bytep buffer, png_size_t buffer_length),PNG_EMPTY); png_bytep buffer, size_t buffer_length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY); PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr,
png_bytep buffer, png_size_t buffer_length),PNG_EMPTY); png_bytep buffer, size_t buffer_length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr), PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr),
PNG_EMPTY); PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr,
@ -1392,7 +1587,7 @@ PNG_INTERNAL_FUNCTION(void,png_push_have_info,(png_structrp png_ptr,
PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr,
png_inforp info_ptr),PNG_EMPTY); png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr,
png_bytep row),PNG_EMPTY); png_bytep row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr,
png_inforp info_ptr),PNG_EMPTY); png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr,
@ -1431,13 +1626,13 @@ PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr,
PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr,
png_inforp info_ptr), PNG_EMPTY); png_inforp info_ptr), PNG_EMPTY);
/* Synchronize the info 'valid' flags with the colorspace */ /* Synchronize the info 'valid' flags with the colorspace */
PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr,
png_inforp info_ptr), PNG_EMPTY); png_inforp info_ptr), PNG_EMPTY);
/* Copy the png_struct colorspace to the info_struct and call the above to /* Copy the png_struct colorspace to the info_struct and call the above to
* synchronize the flags. Checks for NULL info_ptr and does nothing. * synchronize the flags. Checks for NULL info_ptr and does nothing.
*/ */
#endif #endif
/* Added at libpng version 1.4.0 */ /* Added at libpng version 1.4.0 */
@ -1471,9 +1666,11 @@ PNG_INTERNAL_FUNCTION(int,png_colorspace_set_ICC,(png_const_structrp png_ptr,
/* The 'name' is used for information only */ /* The 'name' is used for information only */
/* Routines for checking parts of an ICC profile. */ /* Routines for checking parts of an ICC profile. */
#ifdef PNG_READ_iCCP_SUPPORTED
PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr,
png_colorspacerp colorspace, png_const_charp name, png_colorspacerp colorspace, png_const_charp name,
png_uint_32 profile_length), PNG_EMPTY); png_uint_32 profile_length), PNG_EMPTY);
#endif /* READ_iCCP */
PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr,
png_colorspacerp colorspace, png_const_charp name, png_colorspacerp colorspace, png_const_charp name,
png_uint_32 profile_length, png_uint_32 profile_length,
@ -1650,13 +1847,13 @@ PNG_INTERNAL_FUNCTION(void,png_chunk_report,(png_const_structrp png_ptr,
#ifdef PNG_FLOATING_POINT_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr,
png_charp ascii, png_size_t size, double fp, unsigned int precision), png_charp ascii, size_t size, double fp, unsigned int precision),
PNG_EMPTY); PNG_EMPTY);
#endif /* FLOATING_POINT */ #endif /* FLOATING_POINT */
#ifdef PNG_FIXED_POINT_SUPPORTED #ifdef PNG_FIXED_POINT_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr, PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
png_charp ascii, png_size_t size, png_fixed_point fp),PNG_EMPTY); png_charp ascii, size_t size, png_fixed_point fp),PNG_EMPTY);
#endif /* FIXED_POINT */ #endif /* FIXED_POINT */
#endif /* sCAL */ #endif /* sCAL */
@ -1713,7 +1910,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
*/ */
#define PNG_FP_INVALID 512 /* Available for callers as a distinct value */ #define PNG_FP_INVALID 512 /* Available for callers as a distinct value */
/* Result codes for the parser (boolean - true meants ok, false means /* Result codes for the parser (boolean - true means ok, false means
* not ok yet.) * not ok yet.)
*/ */
#define PNG_FP_MAYBE 0 /* The number may be valid in the future */ #define PNG_FP_MAYBE 0 /* The number may be valid in the future */
@ -1749,7 +1946,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
* the problem character.) This has not been tested within libpng. * the problem character.) This has not been tested within libpng.
*/ */
PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string, PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
png_size_t size, int *statep, png_size_tp whereami),PNG_EMPTY); size_t size, int *statep, size_t *whereami),PNG_EMPTY);
/* This is the same but it checks a complete string and returns true /* This is the same but it checks a complete string and returns true
* only if it just contains a floating point number. As of 1.5.4 this * only if it just contains a floating point number. As of 1.5.4 this
@ -1758,7 +1955,7 @@ PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
* for negative or zero values using the sticky flag. * for negative or zero values using the sticky flag.
*/ */
PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string, PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string,
png_size_t size),PNG_EMPTY); size_t size),PNG_EMPTY);
#endif /* pCAL || sCAL */ #endif /* pCAL || sCAL */
#if defined(PNG_GAMMA_SUPPORTED) ||\ #if defined(PNG_GAMMA_SUPPORTED) ||\
@ -1833,7 +2030,7 @@ typedef struct png_control
png_voidp error_buf; /* Always a jmp_buf at present. */ png_voidp error_buf; /* Always a jmp_buf at present. */
png_const_bytep memory; /* Memory buffer. */ png_const_bytep memory; /* Memory buffer. */
png_size_t size; /* Size of the memory buffer. */ size_t size; /* Size of the memory buffer. */
unsigned int for_write :1; /* Otherwise it is a read structure */ unsigned int for_write :1; /* Otherwise it is a read structure */
unsigned int owned_file :1; /* We own the file in io_ptr */ unsigned int owned_file :1; /* We own the file in io_ptr */
@ -1892,10 +2089,48 @@ PNG_INTERNAL_FUNCTION(void, PNG_FILTER_OPTIMIZATIONS, (png_structp png_ptr,
* the builder of libpng passes the definition of PNG_FILTER_OPTIMIZATIONS in * the builder of libpng passes the definition of PNG_FILTER_OPTIMIZATIONS in
* CFLAGS in place of CPPFLAGS *and* uses symbol prefixing. * CFLAGS in place of CPPFLAGS *and* uses symbol prefixing.
*/ */
# if PNG_ARM_NEON_OPT > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon, PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY); (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif #endif
#if PNG_MIPS_MSA_OPT > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif
# if PNG_INTEL_SSE_IMPLEMENTATION > 0
PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
# endif
#endif
PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
png_const_charp key, png_bytep new_key), PNG_EMPTY);
#if PNG_ARM_NEON_IMPLEMENTATION == 1
PNG_INTERNAL_FUNCTION(void,
png_riffle_palette_neon,
(png_structrp),
PNG_EMPTY);
PNG_INTERNAL_FUNCTION(int,
png_do_expand_palette_rgba8_neon,
(png_structrp,
png_row_infop,
png_const_bytep,
const png_bytepp,
const png_bytepp),
PNG_EMPTY);
PNG_INTERNAL_FUNCTION(int,
png_do_expand_palette_rgb8_neon,
(png_structrp,
png_row_infop,
png_const_bytep,
const png_bytepp,
const png_bytepp),
PNG_EMPTY);
#endif
/* Maintainer: Put new private prototypes here ^ */ /* Maintainer: Put new private prototypes here ^ */
#include "pngdebug.h" #include "pngdebug.h"

540
3rdparty/libpng/pngread.c vendored
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20
3rdparty/libpng/pngrio.c vendored
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@ -1,10 +1,10 @@
/* pngrio.c - functions for data input /* pngrio.c - functions for data input
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -26,10 +26,10 @@
* reads from a file pointer. Note that this routine sometimes gets called * reads from a file pointer. Note that this routine sometimes gets called
* with very small lengths, so you should implement some kind of simple * with very small lengths, so you should implement some kind of simple
* buffering if you are using unbuffered reads. This should never be asked * buffering if you are using unbuffered reads. This should never be asked
* to read more than 64K on a 16 bit machine. * to read more than 64K on a 16-bit machine.
*/ */
void /* PRIVATE */ void /* PRIVATE */
png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length) png_read_data(png_structrp png_ptr, png_bytep data, size_t length)
{ {
png_debug1(4, "reading %d bytes", (int)length); png_debug1(4, "reading %d bytes", (int)length);
@ -47,14 +47,14 @@ png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length)
* than changing the library. * than changing the library.
*/ */
void PNGCBAPI void PNGCBAPI
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) png_default_read_data(png_structp png_ptr, png_bytep data, size_t length)
{ {
png_size_t check; size_t check;
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
/* fread() returns 0 on error, so it is OK to store this in a png_size_t /* fread() returns 0 on error, so it is OK to store this in a size_t
* instead of an int, which is what fread() actually returns. * instead of an int, which is what fread() actually returns.
*/ */
check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr)); check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr));
@ -85,7 +85,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
*/ */
void PNGAPI void PNGAPI
png_set_read_fn(png_structrp png_ptr, png_voidp io_ptr, png_set_read_fn(png_structrp png_ptr, png_voidp io_ptr,
png_rw_ptr read_data_fn) png_rw_ptr read_data_fn)
{ {
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;

2055
3rdparty/libpng/pngrtran.c vendored
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File diff suppressed because it is too large Load Diff

1021
3rdparty/libpng/pngrutil.c vendored
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File diff suppressed because it is too large Load Diff

419
3rdparty/libpng/pngset.c vendored
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@ -1,10 +1,10 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018-2023 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -104,14 +104,14 @@ png_set_cHRM(png_const_structrp png_ptr, png_inforp info_ptr,
double green_x, double green_y, double blue_x, double blue_y) double green_x, double green_y, double blue_x, double blue_y)
{ {
png_set_cHRM_fixed(png_ptr, info_ptr, png_set_cHRM_fixed(png_ptr, info_ptr,
png_fixed(png_ptr, white_x, "cHRM White X"), png_fixed(png_ptr, white_x, "cHRM White X"),
png_fixed(png_ptr, white_y, "cHRM White Y"), png_fixed(png_ptr, white_y, "cHRM White Y"),
png_fixed(png_ptr, red_x, "cHRM Red X"), png_fixed(png_ptr, red_x, "cHRM Red X"),
png_fixed(png_ptr, red_y, "cHRM Red Y"), png_fixed(png_ptr, red_y, "cHRM Red Y"),
png_fixed(png_ptr, green_x, "cHRM Green X"), png_fixed(png_ptr, green_x, "cHRM Green X"),
png_fixed(png_ptr, green_y, "cHRM Green Y"), png_fixed(png_ptr, green_y, "cHRM Green Y"),
png_fixed(png_ptr, blue_x, "cHRM Blue X"), png_fixed(png_ptr, blue_x, "cHRM Blue X"),
png_fixed(png_ptr, blue_y, "cHRM Blue Y")); png_fixed(png_ptr, blue_y, "cHRM Blue Y"));
} }
void PNGAPI void PNGAPI
@ -120,20 +120,61 @@ png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X,
double blue_X, double blue_Y, double blue_Z) double blue_X, double blue_Y, double blue_Z)
{ {
png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, png_set_cHRM_XYZ_fixed(png_ptr, info_ptr,
png_fixed(png_ptr, red_X, "cHRM Red X"), png_fixed(png_ptr, red_X, "cHRM Red X"),
png_fixed(png_ptr, red_Y, "cHRM Red Y"), png_fixed(png_ptr, red_Y, "cHRM Red Y"),
png_fixed(png_ptr, red_Z, "cHRM Red Z"), png_fixed(png_ptr, red_Z, "cHRM Red Z"),
png_fixed(png_ptr, green_X, "cHRM Red X"), png_fixed(png_ptr, green_X, "cHRM Green X"),
png_fixed(png_ptr, green_Y, "cHRM Red Y"), png_fixed(png_ptr, green_Y, "cHRM Green Y"),
png_fixed(png_ptr, green_Z, "cHRM Red Z"), png_fixed(png_ptr, green_Z, "cHRM Green Z"),
png_fixed(png_ptr, blue_X, "cHRM Red X"), png_fixed(png_ptr, blue_X, "cHRM Blue X"),
png_fixed(png_ptr, blue_Y, "cHRM Red Y"), png_fixed(png_ptr, blue_Y, "cHRM Blue Y"),
png_fixed(png_ptr, blue_Z, "cHRM Red Z")); png_fixed(png_ptr, blue_Z, "cHRM Blue Z"));
} }
# endif /* FLOATING_POINT */ # endif /* FLOATING_POINT */
#endif /* cHRM */ #endif /* cHRM */
#ifdef PNG_eXIf_SUPPORTED
void PNGAPI
png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
png_bytep exif)
{
png_warning(png_ptr, "png_set_eXIf does not work; use png_set_eXIf_1");
PNG_UNUSED(info_ptr)
PNG_UNUSED(exif)
}
void PNGAPI
png_set_eXIf_1(png_const_structrp png_ptr, png_inforp info_ptr,
png_uint_32 num_exif, png_bytep exif)
{
png_bytep new_exif;
png_debug1(1, "in %s storage function", "eXIf");
if (png_ptr == NULL || info_ptr == NULL ||
(png_ptr->mode & PNG_WROTE_eXIf) != 0)
return;
new_exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr, num_exif));
if (new_exif == NULL)
{
png_warning(png_ptr, "Insufficient memory for eXIf chunk data");
return;
}
memcpy(new_exif, exif, (size_t)num_exif);
png_free_data(png_ptr, info_ptr, PNG_FREE_EXIF, 0);
info_ptr->num_exif = num_exif;
info_ptr->exif = new_exif;
info_ptr->free_me |= PNG_FREE_EXIF;
info_ptr->valid |= PNG_INFO_eXIf;
}
#endif /* eXIf */
#ifdef PNG_gAMA_SUPPORTED #ifdef PNG_gAMA_SUPPORTED
void PNGFAPI void PNGFAPI
png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr, png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr,
@ -190,15 +231,13 @@ png_set_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->hist == NULL) if (info_ptr->hist == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for hIST chunk data"); png_warning(png_ptr, "Insufficient memory for hIST chunk data");
return; return;
} }
info_ptr->free_me |= PNG_FREE_HIST;
for (i = 0; i < info_ptr->num_palette; i++) for (i = 0; i < info_ptr->num_palette; i++)
info_ptr->hist[i] = hist[i]; info_ptr->hist[i] = hist[i];
info_ptr->free_me |= PNG_FREE_HIST;
info_ptr->valid |= PNG_INFO_hIST; info_ptr->valid |= PNG_INFO_hIST;
} }
#endif #endif
@ -266,7 +305,7 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type, png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type,
int nparams, png_const_charp units, png_charpp params) int nparams, png_const_charp units, png_charpp params)
{ {
png_size_t length; size_t length;
int i; int i;
png_debug1(1, "in %s storage function", "pCAL"); png_debug1(1, "in %s storage function", "pCAL");
@ -283,17 +322,29 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
/* Check that the type matches the specification. */ /* Check that the type matches the specification. */
if (type < 0 || type > 3) if (type < 0 || type > 3)
png_error(png_ptr, "Invalid pCAL equation type"); {
png_chunk_report(png_ptr, "Invalid pCAL equation type",
PNG_CHUNK_WRITE_ERROR);
return;
}
if (nparams < 0 || nparams > 255) if (nparams < 0 || nparams > 255)
png_error(png_ptr, "Invalid pCAL parameter count"); {
png_chunk_report(png_ptr, "Invalid pCAL parameter count",
PNG_CHUNK_WRITE_ERROR);
return;
}
/* Validate params[nparams] */ /* Validate params[nparams] */
for (i=0; i<nparams; ++i) for (i=0; i<nparams; ++i)
{ {
if (params[i] == NULL || if (params[i] == NULL ||
!png_check_fp_string(params[i], strlen(params[i]))) !png_check_fp_string(params[i], strlen(params[i])))
png_error(png_ptr, "Invalid format for pCAL parameter"); {
png_chunk_report(png_ptr, "Invalid format for pCAL parameter",
PNG_CHUNK_WRITE_ERROR);
return;
}
} }
info_ptr->pcal_purpose = png_voidcast(png_charp, info_ptr->pcal_purpose = png_voidcast(png_charp,
@ -301,13 +352,15 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_purpose == NULL) if (info_ptr->pcal_purpose == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL purpose"); png_chunk_report(png_ptr, "Insufficient memory for pCAL purpose",
PNG_CHUNK_WRITE_ERROR);
return; return;
} }
memcpy(info_ptr->pcal_purpose, purpose, length); memcpy(info_ptr->pcal_purpose, purpose, length);
info_ptr->free_me |= PNG_FREE_PCAL;
png_debug(3, "storing X0, X1, type, and nparams in info"); png_debug(3, "storing X0, X1, type, and nparams in info");
info_ptr->pcal_X0 = X0; info_ptr->pcal_X0 = X0;
info_ptr->pcal_X1 = X1; info_ptr->pcal_X1 = X1;
@ -316,31 +369,30 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
length = strlen(units) + 1; length = strlen(units) + 1;
png_debug1(3, "allocating units for info (%lu bytes)", png_debug1(3, "allocating units for info (%lu bytes)",
(unsigned long)length); (unsigned long)length);
info_ptr->pcal_units = png_voidcast(png_charp, info_ptr->pcal_units = png_voidcast(png_charp,
png_malloc_warn(png_ptr, length)); png_malloc_warn(png_ptr, length));
if (info_ptr->pcal_units == NULL) if (info_ptr->pcal_units == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL units"); png_warning(png_ptr, "Insufficient memory for pCAL units");
return; return;
} }
memcpy(info_ptr->pcal_units, units, length); memcpy(info_ptr->pcal_units, units, length);
info_ptr->pcal_params = png_voidcast(png_charpp, png_malloc_warn(png_ptr, info_ptr->pcal_params = png_voidcast(png_charpp, png_malloc_warn(png_ptr,
(png_size_t)((nparams + 1) * (sizeof (png_charp))))); (size_t)(((unsigned int)nparams + 1) * (sizeof (png_charp)))));
if (info_ptr->pcal_params == NULL) if (info_ptr->pcal_params == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL params"); png_warning(png_ptr, "Insufficient memory for pCAL params");
return; return;
} }
memset(info_ptr->pcal_params, 0, (nparams + 1) * (sizeof (png_charp))); memset(info_ptr->pcal_params, 0, ((unsigned int)nparams + 1) *
(sizeof (png_charp)));
for (i = 0; i < nparams; i++) for (i = 0; i < nparams; i++)
{ {
@ -353,7 +405,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
if (info_ptr->pcal_params[i] == NULL) if (info_ptr->pcal_params[i] == NULL)
{ {
png_warning(png_ptr, "Insufficient memory for pCAL parameter"); png_warning(png_ptr, "Insufficient memory for pCAL parameter");
return; return;
} }
@ -361,7 +412,6 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
} }
info_ptr->valid |= PNG_INFO_pCAL; info_ptr->valid |= PNG_INFO_pCAL;
info_ptr->free_me |= PNG_FREE_PCAL;
} }
#endif #endif
@ -370,7 +420,7 @@ void PNGAPI
png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr, png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
int unit, png_const_charp swidth, png_const_charp sheight) int unit, png_const_charp swidth, png_const_charp sheight)
{ {
png_size_t lengthw = 0, lengthh = 0; size_t lengthw = 0, lengthh = 0;
png_debug1(1, "in %s storage function", "sCAL"); png_debug1(1, "in %s storage function", "sCAL");
@ -398,7 +448,7 @@ png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthw); png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthw);
info_ptr->scal_s_width = png_voidcast(png_charp, info_ptr->scal_s_width = png_voidcast(png_charp,
png_malloc_warn(png_ptr, lengthw)); png_malloc_warn(png_ptr, lengthw));
if (info_ptr->scal_s_width == NULL) if (info_ptr->scal_s_width == NULL)
{ {
@ -414,22 +464,21 @@ png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthh); png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthh);
info_ptr->scal_s_height = png_voidcast(png_charp, info_ptr->scal_s_height = png_voidcast(png_charp,
png_malloc_warn(png_ptr, lengthh)); png_malloc_warn(png_ptr, lengthh));
if (info_ptr->scal_s_height == NULL) if (info_ptr->scal_s_height == NULL)
{ {
png_free (png_ptr, info_ptr->scal_s_width); png_free(png_ptr, info_ptr->scal_s_width);
info_ptr->scal_s_width = NULL; info_ptr->scal_s_width = NULL;
png_warning(png_ptr, "Memory allocation failed while processing sCAL"); png_warning(png_ptr, "Memory allocation failed while processing sCAL");
return; return;
} }
memcpy(info_ptr->scal_s_height, sheight, lengthh); memcpy(info_ptr->scal_s_height, sheight, lengthh);
info_ptr->valid |= PNG_INFO_sCAL;
info_ptr->free_me |= PNG_FREE_SCAL; info_ptr->free_me |= PNG_FREE_SCAL;
info_ptr->valid |= PNG_INFO_sCAL;
} }
# ifdef PNG_FLOATING_POINT_SUPPORTED # ifdef PNG_FLOATING_POINT_SUPPORTED
@ -453,9 +502,9 @@ png_set_sCAL(png_const_structrp png_ptr, png_inforp info_ptr, int unit,
char sheight[PNG_sCAL_MAX_DIGITS+1]; char sheight[PNG_sCAL_MAX_DIGITS+1];
png_ascii_from_fp(png_ptr, swidth, (sizeof swidth), width, png_ascii_from_fp(png_ptr, swidth, (sizeof swidth), width,
PNG_sCAL_PRECISION); PNG_sCAL_PRECISION);
png_ascii_from_fp(png_ptr, sheight, (sizeof sheight), height, png_ascii_from_fp(png_ptr, sheight, (sizeof sheight), height,
PNG_sCAL_PRECISION); PNG_sCAL_PRECISION);
png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight); png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight);
} }
@ -513,12 +562,17 @@ png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr,
png_const_colorp palette, int num_palette) png_const_colorp palette, int num_palette)
{ {
png_uint_32 max_palette_length;
png_debug1(1, "in %s storage function", "PLTE"); png_debug1(1, "in %s storage function", "PLTE");
if (png_ptr == NULL || info_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH) max_palette_length = (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ?
(1 << info_ptr->bit_depth) : PNG_MAX_PALETTE_LENGTH;
if (num_palette < 0 || num_palette > (int) max_palette_length)
{ {
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_error(png_ptr, "Invalid palette length"); png_error(png_ptr, "Invalid palette length");
@ -551,19 +605,19 @@ png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr,
png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
/* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead
* of num_palette entries, in case of an invalid PNG file that has * of num_palette entries, in case of an invalid PNG file or incorrect
* too-large sample values. * call to png_set_PLTE() with too-large sample values.
*/ */
png_ptr->palette = png_voidcast(png_colorp, png_calloc(png_ptr, png_ptr->palette = png_voidcast(png_colorp, png_calloc(png_ptr,
PNG_MAX_PALETTE_LENGTH * (sizeof (png_color)))); PNG_MAX_PALETTE_LENGTH * (sizeof (png_color))));
if (num_palette > 0) if (num_palette > 0)
memcpy(png_ptr->palette, palette, num_palette * (sizeof (png_color))); memcpy(png_ptr->palette, palette, (unsigned int)num_palette *
(sizeof (png_color)));
info_ptr->palette = png_ptr->palette; info_ptr->palette = png_ptr->palette;
info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
info_ptr->free_me |= PNG_FREE_PLTE; info_ptr->free_me |= PNG_FREE_PLTE;
info_ptr->valid |= PNG_INFO_PLTE; info_ptr->valid |= PNG_INFO_PLTE;
} }
@ -625,7 +679,7 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
{ {
png_charp new_iccp_name; png_charp new_iccp_name;
png_bytep new_iccp_profile; png_bytep new_iccp_profile;
png_size_t length; size_t length;
png_debug1(1, "in %s storage function", "iCCP"); png_debug1(1, "in %s storage function", "iCCP");
@ -643,7 +697,7 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
*/ */
{ {
int result = png_colorspace_set_ICC(png_ptr, &info_ptr->colorspace, name, int result = png_colorspace_set_ICC(png_ptr, &info_ptr->colorspace, name,
proflen, profile, info_ptr->color_type); proflen, profile, info_ptr->color_type);
png_colorspace_sync_info(png_ptr, info_ptr); png_colorspace_sync_info(png_ptr, info_ptr);
@ -668,12 +722,11 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
memcpy(new_iccp_name, name, length); memcpy(new_iccp_name, name, length);
new_iccp_profile = png_voidcast(png_bytep, new_iccp_profile = png_voidcast(png_bytep,
png_malloc_warn(png_ptr, proflen)); png_malloc_warn(png_ptr, proflen));
if (new_iccp_profile == NULL) if (new_iccp_profile == NULL)
{ {
png_free(png_ptr, new_iccp_name); png_free(png_ptr, new_iccp_name);
new_iccp_name = NULL;
png_benign_error(png_ptr, png_benign_error(png_ptr,
"Insufficient memory to process iCCP profile"); "Insufficient memory to process iCCP profile");
@ -710,7 +763,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
{ {
int i; int i;
png_debug1(1, "in %lx storage function", png_ptr == NULL ? "unexpected" : png_debug1(1, "in %lx storage function", png_ptr == NULL ? 0xabadca11U :
(unsigned long)png_ptr->chunk_name); (unsigned long)png_ptr->chunk_name);
if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL)
@ -744,14 +797,14 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
* the overflow checks. * the overflow checks.
*/ */
new_text = png_voidcast(png_textp,png_realloc_array(png_ptr, new_text = png_voidcast(png_textp,png_realloc_array(png_ptr,
info_ptr->text, old_num_text, max_text-old_num_text, info_ptr->text, old_num_text, max_text-old_num_text,
sizeof *new_text)); sizeof *new_text));
} }
if (new_text == NULL) if (new_text == NULL)
{ {
png_chunk_report(png_ptr, "too many text chunks", png_chunk_report(png_ptr, "too many text chunks",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
return 1; return 1;
} }
@ -779,7 +832,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST) text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST)
{ {
png_chunk_report(png_ptr, "text compression mode is out of range", png_chunk_report(png_ptr, "text compression mode is out of range",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
continue; continue;
} }
@ -811,7 +864,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
# else /* iTXt */ # else /* iTXt */
{ {
png_chunk_report(png_ptr, "iTXt chunk not supported", png_chunk_report(png_ptr, "iTXt chunk not supported",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
continue; continue;
} }
# endif # endif
@ -840,7 +893,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr,
if (textp->key == NULL) if (textp->key == NULL)
{ {
png_chunk_report(png_ptr, "text chunk: out of memory", png_chunk_report(png_ptr, "text chunk: out of memory",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
return 1; return 1;
} }
@ -948,12 +1001,17 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
/* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */
png_ptr->trans_alpha = info_ptr->trans_alpha = png_voidcast(png_bytep,
png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH) if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH)
memcpy(info_ptr->trans_alpha, trans_alpha, (png_size_t)num_trans); {
/* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */
info_ptr->trans_alpha = png_voidcast(png_bytep,
png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
memcpy(info_ptr->trans_alpha, trans_alpha, (size_t)num_trans);
info_ptr->free_me |= PNG_FREE_TRNS;
info_ptr->valid |= PNG_INFO_tRNS;
}
png_ptr->trans_alpha = info_ptr->trans_alpha;
} }
if (trans_color != NULL) if (trans_color != NULL)
@ -970,7 +1028,7 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
trans_color->green > sample_max || trans_color->green > sample_max ||
trans_color->blue > sample_max))) trans_color->blue > sample_max)))
png_warning(png_ptr, png_warning(png_ptr,
"tRNS chunk has out-of-range samples for bit_depth"); "tRNS chunk has out-of-range samples for bit_depth");
} }
#endif #endif
@ -984,8 +1042,8 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
if (num_trans != 0) if (num_trans != 0)
{ {
info_ptr->valid |= PNG_INFO_tRNS;
info_ptr->free_me |= PNG_FREE_TRNS; info_ptr->free_me |= PNG_FREE_TRNS;
info_ptr->valid |= PNG_INFO_tRNS;
} }
} }
#endif #endif
@ -1012,18 +1070,18 @@ png_set_sPLT(png_const_structrp png_ptr,
* overflows. Notice that the parameters are (int) and (size_t) * overflows. Notice that the parameters are (int) and (size_t)
*/ */
np = png_voidcast(png_sPLT_tp,png_realloc_array(png_ptr, np = png_voidcast(png_sPLT_tp,png_realloc_array(png_ptr,
info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries, info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries,
sizeof *np)); sizeof *np));
if (np == NULL) if (np == NULL)
{ {
/* Out of memory or too many chunks */ /* Out of memory or too many chunks */
png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR); png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR);
return; return;
} }
png_free(png_ptr, info_ptr->splt_palettes); png_free(png_ptr, info_ptr->splt_palettes);
info_ptr->splt_palettes = np; info_ptr->splt_palettes = np;
info_ptr->free_me |= PNG_FREE_SPLT; info_ptr->free_me |= PNG_FREE_SPLT;
@ -1031,7 +1089,7 @@ png_set_sPLT(png_const_structrp png_ptr,
do do
{ {
png_size_t length; size_t length;
/* Skip invalid input entries */ /* Skip invalid input entries */
if (entries->name == NULL || entries->entries == NULL) if (entries->name == NULL || entries->entries == NULL)
@ -1074,7 +1132,7 @@ png_set_sPLT(png_const_structrp png_ptr,
* checked it when doing the allocation. * checked it when doing the allocation.
*/ */
memcpy(np->entries, entries->entries, memcpy(np->entries, entries->entries,
entries->nentries * sizeof (png_sPLT_entry)); (unsigned int)entries->nentries * sizeof (png_sPLT_entry));
/* Note that 'continue' skips the advance of the out pointer and out /* Note that 'continue' skips the advance of the out pointer and out
* count, so an invalid entry is not added. * count, so an invalid entry is not added.
@ -1082,8 +1140,9 @@ png_set_sPLT(png_const_structrp png_ptr,
info_ptr->valid |= PNG_INFO_sPLT; info_ptr->valid |= PNG_INFO_sPLT;
++(info_ptr->splt_palettes_num); ++(info_ptr->splt_palettes_num);
++np; ++np;
++entries;
} }
while (++entries, --nentries); while (--nentries);
if (nentries > 0) if (nentries > 0)
png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR); png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR);
@ -1104,10 +1163,10 @@ check_location(png_const_structrp png_ptr, int location)
{ {
/* Write struct, so unknown chunks come from the app */ /* Write struct, so unknown chunks come from the app */
png_app_warning(png_ptr, png_app_warning(png_ptr,
"png_set_unknown_chunks now expects a valid location"); "png_set_unknown_chunks now expects a valid location");
/* Use the old behavior */ /* Use the old behavior */
location = (png_byte)(png_ptr->mode & location = (png_byte)(png_ptr->mode &
(PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT)); (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT));
} }
/* This need not be an internal error - if the app calls /* This need not be an internal error - if the app calls
@ -1130,7 +1189,7 @@ check_location(png_const_structrp png_ptr, int location)
void PNGAPI void PNGAPI
png_set_unknown_chunks(png_const_structrp png_ptr, png_set_unknown_chunks(png_const_structrp png_ptr,
png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns) png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns)
{ {
png_unknown_chunkp np; png_unknown_chunkp np;
@ -1169,18 +1228,18 @@ png_set_unknown_chunks(png_const_structrp png_ptr,
* appropriate to read or write. * appropriate to read or write.
*/ */
np = png_voidcast(png_unknown_chunkp, png_realloc_array(png_ptr, np = png_voidcast(png_unknown_chunkp, png_realloc_array(png_ptr,
info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns, info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns,
sizeof *np)); sizeof *np));
if (np == NULL) if (np == NULL)
{ {
png_chunk_report(png_ptr, "too many unknown chunks", png_chunk_report(png_ptr, "too many unknown chunks",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
return; return;
} }
png_free(png_ptr, info_ptr->unknown_chunks); png_free(png_ptr, info_ptr->unknown_chunks);
info_ptr->unknown_chunks = np; /* safe because it is initialized */ info_ptr->unknown_chunks = np; /* safe because it is initialized */
info_ptr->free_me |= PNG_FREE_UNKN; info_ptr->free_me |= PNG_FREE_UNKN;
@ -1204,12 +1263,12 @@ png_set_unknown_chunks(png_const_structrp png_ptr,
else else
{ {
np->data = png_voidcast(png_bytep, np->data = png_voidcast(png_bytep,
png_malloc_base(png_ptr, unknowns->size)); png_malloc_base(png_ptr, unknowns->size));
if (np->data == NULL) if (np->data == NULL)
{ {
png_chunk_report(png_ptr, "unknown chunk: out of memory", png_chunk_report(png_ptr, "unknown chunk: out of memory",
PNG_CHUNK_WRITE_ERROR); PNG_CHUNK_WRITE_ERROR);
/* But just skip storing the unknown chunk */ /* But just skip storing the unknown chunk */
continue; continue;
} }
@ -1243,7 +1302,7 @@ png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr,
{ {
png_app_error(png_ptr, "invalid unknown chunk location"); png_app_error(png_ptr, "invalid unknown chunk location");
/* Fake out the pre 1.6.0 behavior: */ /* Fake out the pre 1.6.0 behavior: */
if ((location & PNG_HAVE_IDAT) != 0) /* undocumented! */ if (((unsigned int)location & PNG_HAVE_IDAT) != 0) /* undocumented! */
location = PNG_AFTER_IDAT; location = PNG_AFTER_IDAT;
else else
@ -1258,7 +1317,7 @@ png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr,
#ifdef PNG_MNG_FEATURES_SUPPORTED #ifdef PNG_MNG_FEATURES_SUPPORTED
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_permit_mng_features (png_structrp png_ptr, png_uint_32 mng_features) png_permit_mng_features(png_structrp png_ptr, png_uint_32 mng_features)
{ {
png_debug(1, "in png_permit_mng_features"); png_debug(1, "in png_permit_mng_features");
@ -1331,9 +1390,10 @@ png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
/* Ignore all unknown chunks and all chunks recognized by /* Ignore all unknown chunks and all chunks recognized by
* libpng except for IHDR, PLTE, tRNS, IDAT, and IEND * libpng except for IHDR, PLTE, tRNS, IDAT, and IEND
*/ */
static PNG_CONST png_byte chunks_to_ignore[] = { static const png_byte chunks_to_ignore[] = {
98, 75, 71, 68, '\0', /* bKGD */ 98, 75, 71, 68, '\0', /* bKGD */
99, 72, 82, 77, '\0', /* cHRM */ 99, 72, 82, 77, '\0', /* cHRM */
101, 88, 73, 102, '\0', /* eXIf */
103, 65, 77, 65, '\0', /* gAMA */ 103, 65, 77, 65, '\0', /* gAMA */
104, 73, 83, 84, '\0', /* hIST */ 104, 73, 83, 84, '\0', /* hIST */
105, 67, 67, 80, '\0', /* iCCP */ 105, 67, 67, 80, '\0', /* iCCP */
@ -1367,7 +1427,7 @@ png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
return; return;
} }
num_chunks = num_chunks_in; num_chunks = (unsigned int)num_chunks_in;
} }
old_num_chunks = png_ptr->num_chunk_list; old_num_chunks = png_ptr->num_chunk_list;
@ -1416,7 +1476,7 @@ png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
for (i=0; i<num_chunks; ++i) for (i=0; i<num_chunks; ++i)
{ {
old_num_chunks = add_one_chunk(new_list, old_num_chunks, old_num_chunks = add_one_chunk(new_list, old_num_chunks,
chunk_list+5*i, keep); chunk_list+5*i, keep);
} }
/* Now remove any spurious 'default' entries. */ /* Now remove any spurious 'default' entries. */
@ -1494,59 +1554,62 @@ png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
#endif #endif
void PNGAPI void PNGAPI
png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size) png_set_compression_buffer_size(png_structrp png_ptr, size_t size)
{ {
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
if (size == 0 || size > PNG_UINT_31_MAX) if (size == 0 || size > PNG_UINT_31_MAX)
png_error(png_ptr, "invalid compression buffer size"); png_error(png_ptr, "invalid compression buffer size");
# ifdef PNG_SEQUENTIAL_READ_SUPPORTED # ifdef PNG_SEQUENTIAL_READ_SUPPORTED
if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0) if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
{ {
png_ptr->IDAT_read_size = (png_uint_32)size; /* checked above */ png_ptr->IDAT_read_size = (png_uint_32)size; /* checked above */
return; return;
} }
# endif # endif
# ifdef PNG_WRITE_SUPPORTED # ifdef PNG_WRITE_SUPPORTED
if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0) if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
{
if (png_ptr->zowner != 0)
{ {
if (png_ptr->zowner != 0) png_warning(png_ptr,
{ "Compression buffer size cannot be changed because it is in use");
png_warning(png_ptr,
"Compression buffer size cannot be changed because it is in use");
return; return;
} }
#ifndef __COVERITY__ #ifndef __COVERITY__
if (size > ZLIB_IO_MAX) /* Some compilers complain that this is always false. However, it
{ * can be true when integer overflow happens.
png_warning(png_ptr, */
"Compression buffer size limited to system maximum"); if (size > ZLIB_IO_MAX)
size = ZLIB_IO_MAX; /* must fit */ {
} png_warning(png_ptr,
"Compression buffer size limited to system maximum");
size = ZLIB_IO_MAX; /* must fit */
}
#endif #endif
if (size < 6) if (size < 6)
{ {
/* Deflate will potentially go into an infinite loop on a SYNC_FLUSH /* Deflate will potentially go into an infinite loop on a SYNC_FLUSH
* if this is permitted. * if this is permitted.
*/ */
png_warning(png_ptr, png_warning(png_ptr,
"Compression buffer size cannot be reduced below 6"); "Compression buffer size cannot be reduced below 6");
return; return;
}
if (png_ptr->zbuffer_size != size)
{
png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list);
png_ptr->zbuffer_size = (uInt)size;
}
} }
if (png_ptr->zbuffer_size != size)
{
png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list);
png_ptr->zbuffer_size = (uInt)size;
}
}
# endif # endif
} }
@ -1554,19 +1617,19 @@ void PNGAPI
png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask) png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
info_ptr->valid &= ~mask; info_ptr->valid &= (unsigned int)(~mask);
} }
#ifdef PNG_SET_USER_LIMITS_SUPPORTED #ifdef PNG_SET_USER_LIMITS_SUPPORTED
/* This function was added to libpng 1.2.6 */ /* This function was added to libpng 1.2.6 */
void PNGAPI void PNGAPI
png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max, png_set_user_limits(png_structrp png_ptr, png_uint_32 user_width_max,
png_uint_32 user_height_max) png_uint_32 user_height_max)
{ {
/* Images with dimensions larger than these limits will be /* Images with dimensions larger than these limits will be
* rejected by png_set_IHDR(). To accept any PNG datastream * rejected by png_set_IHDR(). To accept any PNG datastream
* regardless of dimensions, set both limits to 0x7ffffffL. * regardless of dimensions, set both limits to 0x7fffffff.
*/ */
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
@ -1577,7 +1640,7 @@ png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max,
/* This function was added to libpng 1.4.0 */ /* This function was added to libpng 1.4.0 */
void PNGAPI void PNGAPI
png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max) png_set_chunk_cache_max(png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
{ {
if (png_ptr != NULL) if (png_ptr != NULL)
png_ptr->user_chunk_cache_max = user_chunk_cache_max; png_ptr->user_chunk_cache_max = user_chunk_cache_max;
@ -1585,7 +1648,7 @@ png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
/* This function was added to libpng 1.4.1 */ /* This function was added to libpng 1.4.1 */
void PNGAPI void PNGAPI
png_set_chunk_malloc_max (png_structrp png_ptr, png_set_chunk_malloc_max(png_structrp png_ptr,
png_alloc_size_t user_chunk_malloc_max) png_alloc_size_t user_chunk_malloc_max)
{ {
if (png_ptr != NULL) if (png_ptr != NULL)
@ -1637,4 +1700,94 @@ png_set_check_for_invalid_index(png_structrp png_ptr, int allowed)
png_ptr->num_palette_max = -1; png_ptr->num_palette_max = -1;
} }
#endif #endif
#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) || \
defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED)
/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification,
* and if invalid, correct the keyword rather than discarding the entire
* chunk. The PNG 1.0 specification requires keywords 1-79 characters in
* length, forbids leading or trailing whitespace, multiple internal spaces,
* and the non-break space (0x80) from ISO 8859-1. Returns keyword length.
*
* The 'new_key' buffer must be 80 characters in size (for the keyword plus a
* trailing '\0'). If this routine returns 0 then there was no keyword, or a
* valid one could not be generated, and the caller must png_error.
*/
png_uint_32 /* PRIVATE */
png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
{
#ifdef PNG_WARNINGS_SUPPORTED
png_const_charp orig_key = key;
#endif
png_uint_32 key_len = 0;
int bad_character = 0;
int space = 1;
png_debug(1, "in png_check_keyword");
if (key == NULL)
{
*new_key = 0;
return 0;
}
while (*key && key_len < 79)
{
png_byte ch = (png_byte)*key++;
if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/))
{
*new_key++ = ch; ++key_len; space = 0;
}
else if (space == 0)
{
/* A space or an invalid character when one wasn't seen immediately
* before; output just a space.
*/
*new_key++ = 32; ++key_len; space = 1;
/* If the character was not a space then it is invalid. */
if (ch != 32)
bad_character = ch;
}
else if (bad_character == 0)
bad_character = ch; /* just skip it, record the first error */
}
if (key_len > 0 && space != 0) /* trailing space */
{
--key_len; --new_key;
if (bad_character == 0)
bad_character = 32;
}
/* Terminate the keyword */
*new_key = 0;
if (key_len == 0)
return 0;
#ifdef PNG_WARNINGS_SUPPORTED
/* Try to only output one warning per keyword: */
if (*key != 0) /* keyword too long */
png_warning(png_ptr, "keyword truncated");
else if (bad_character != 0)
{
PNG_WARNING_PARAMETERS(p)
png_warning_parameter(p, 1, orig_key);
png_warning_parameter_signed(p, 2, PNG_NUMBER_FORMAT_02x, bad_character);
png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'");
}
#else /* !WARNINGS */
PNG_UNUSED(png_ptr)
#endif /* !WARNINGS */
return key_len;
}
#endif /* TEXT || pCAL || iCCP || sPLT */
#endif /* READ || WRITE */ #endif /* READ || WRITE */

77
3rdparty/libpng/pngstruct.h vendored
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@ -1,10 +1,10 @@
/* pngstruct.h - header file for PNG reference library /* pngstruct.h - header file for PNG reference library
* *
* Last changed in libpng 1.6.1 [March 28, 2013] * Copyright (c) 2018-2022 Cosmin Truta
* Copyright (c) 1998-2013 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -47,7 +47,7 @@
/* zlib.h declares a magic type 'uInt' that limits the amount of data that zlib /* zlib.h declares a magic type 'uInt' that limits the amount of data that zlib
* can handle at once. This type need be no larger than 16 bits (so maximum of * can handle at once. This type need be no larger than 16 bits (so maximum of
* 65535), this define allows us to discover how big it is, but limited by the * 65535), this define allows us to discover how big it is, but limited by the
* maximuum for png_size_t. The value can be overriden in a library build * maximum for size_t. The value can be overridden in a library build
* (pngusr.h, or set it in CPPFLAGS) and it works to set it to a considerably * (pngusr.h, or set it in CPPFLAGS) and it works to set it to a considerably
* lower value (e.g. 255 works). A lower value may help memory usage (slightly) * lower value (e.g. 255 works). A lower value may help memory usage (slightly)
* and may even improve performance on some systems (and degrade it on others.) * and may even improve performance on some systems (and degrade it on others.)
@ -214,23 +214,25 @@ struct png_struct_def
png_uint_32 height; /* height of image in pixels */ png_uint_32 height; /* height of image in pixels */
png_uint_32 num_rows; /* number of rows in current pass */ png_uint_32 num_rows; /* number of rows in current pass */
png_uint_32 usr_width; /* width of row at start of write */ png_uint_32 usr_width; /* width of row at start of write */
png_size_t rowbytes; /* size of row in bytes */ size_t rowbytes; /* size of row in bytes */
png_uint_32 iwidth; /* width of current interlaced row in pixels */ png_uint_32 iwidth; /* width of current interlaced row in pixels */
png_uint_32 row_number; /* current row in interlace pass */ png_uint_32 row_number; /* current row in interlace pass */
png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */ png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */
png_bytep prev_row; /* buffer to save previous (unfiltered) row. png_bytep prev_row; /* buffer to save previous (unfiltered) row.
* This is a pointer into big_prev_row * While reading this is a pointer into
* big_prev_row; while writing it is separately
* allocated if needed.
*/ */
png_bytep row_buf; /* buffer to save current (unfiltered) row. png_bytep row_buf; /* buffer to save current (unfiltered) row.
* This is a pointer into big_row_buf * While reading, this is a pointer into
* big_row_buf; while writing it is separately
* allocated.
*/ */
#ifdef PNG_WRITE_SUPPORTED #ifdef PNG_WRITE_FILTER_SUPPORTED
png_bytep sub_row; /* buffer to save "sub" row when filtering */ png_bytep try_row; /* buffer to save trial row when filtering */
png_bytep up_row; /* buffer to save "up" row when filtering */ png_bytep tst_row; /* buffer to save best trial row when filtering */
png_bytep avg_row; /* buffer to save "avg" row when filtering */
png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */
#endif #endif
png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */ size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */
png_uint_32 idat_size; /* current IDAT size for read */ png_uint_32 idat_size; /* current IDAT size for read */
png_uint_32 crc; /* current chunk CRC value */ png_uint_32 crc; /* current chunk CRC value */
@ -247,7 +249,7 @@ struct png_struct_def
png_byte filter; /* file filter type (always 0) */ png_byte filter; /* file filter type (always 0) */
png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
png_byte pass; /* current interlace pass (0 - 6) */ png_byte pass; /* current interlace pass (0 - 6) */
png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */ png_byte do_filter; /* row filter flags (see PNG_FILTER_ in png.h ) */
png_byte color_type; /* color type of file */ png_byte color_type; /* color type of file */
png_byte bit_depth; /* bit depth of file */ png_byte bit_depth; /* bit depth of file */
png_byte usr_bit_depth; /* bit depth of users row: write only */ png_byte usr_bit_depth; /* bit depth of users row: write only */
@ -261,6 +263,9 @@ struct png_struct_def
/* pixel depth used for the row buffers */ /* pixel depth used for the row buffers */
png_byte transformed_pixel_depth; png_byte transformed_pixel_depth;
/* pixel depth after read/write transforms */ /* pixel depth after read/write transforms */
#if ZLIB_VERNUM >= 0x1240
png_byte zstream_start; /* at start of an input zlib stream */
#endif /* Zlib >= 1.2.4 */
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
png_uint_16 filler; /* filler bytes for pixel expansion */ png_uint_16 filler; /* filler bytes for pixel expansion */
#endif #endif
@ -302,7 +307,7 @@ struct png_struct_def
#endif #endif
#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
png_color_8 shift; /* shift for significant bit tranformation */ png_color_8 shift; /* shift for significant bit transformation */
#endif #endif
#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \
@ -323,42 +328,22 @@ struct png_struct_def
png_bytep current_buffer; /* buffer for recently used data */ png_bytep current_buffer; /* buffer for recently used data */
png_uint_32 push_length; /* size of current input chunk */ png_uint_32 push_length; /* size of current input chunk */
png_uint_32 skip_length; /* bytes to skip in input data */ png_uint_32 skip_length; /* bytes to skip in input data */
png_size_t save_buffer_size; /* amount of data now in save_buffer */ size_t save_buffer_size; /* amount of data now in save_buffer */
png_size_t save_buffer_max; /* total size of save_buffer */ size_t save_buffer_max; /* total size of save_buffer */
png_size_t buffer_size; /* total amount of available input data */ size_t buffer_size; /* total amount of available input data */
png_size_t current_buffer_size; /* amount of data now in current_buffer */ size_t current_buffer_size; /* amount of data now in current_buffer */
int process_mode; /* what push library is currently doing */ int process_mode; /* what push library is currently doing */
int cur_palette; /* current push library palette index */ int cur_palette; /* current push library palette index */
#endif /* PROGRESSIVE_READ */ #endif /* PROGRESSIVE_READ */
#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
/* For the Borland special 64K segment handler */
png_bytepp offset_table_ptr;
png_bytep offset_table;
png_uint_16 offset_table_number;
png_uint_16 offset_table_count;
png_uint_16 offset_table_count_free;
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED #ifdef PNG_READ_QUANTIZE_SUPPORTED
png_bytep palette_lookup; /* lookup table for quantizing */ png_bytep palette_lookup; /* lookup table for quantizing */
png_bytep quantize_index; /* index translation for palette files */ png_bytep quantize_index; /* index translation for palette files */
#endif #endif
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* Options */
png_byte heuristic_method; /* heuristic for row filter selection */
png_byte num_prev_filters; /* number of weights for previous rows */
png_bytep prev_filters; /* filter type(s) of previous row(s) */
png_uint_16p filter_weights; /* weight(s) for previous line(s) */
png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */
png_uint_16p filter_costs; /* relative filter calculation cost */
png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */
#endif
/* Options */
#ifdef PNG_SET_OPTION_SUPPORTED #ifdef PNG_SET_OPTION_SUPPORTED
png_byte options; /* On/off state (up to 4 options) */ png_uint_32 options; /* On/off state (up to 16 options) */
#endif #endif
#if PNG_LIBPNG_VER < 10700 #if PNG_LIBPNG_VER < 10700
@ -397,6 +382,12 @@ struct png_struct_def
/* deleted in 1.5.5: rgb_to_gray_blue_coeff; */ /* deleted in 1.5.5: rgb_to_gray_blue_coeff; */
#endif #endif
/* New member added in libpng-1.6.36 */
#if defined(PNG_READ_EXPAND_SUPPORTED) && \
defined(PNG_ARM_NEON_IMPLEMENTATION)
png_bytep riffled_palette; /* buffer for accelerated palette expansion */
#endif
/* New member added in libpng-1.0.4 (renamed in 1.0.9) */ /* New member added in libpng-1.0.4 (renamed in 1.0.9) */
#if defined(PNG_MNG_FEATURES_SUPPORTED) #if defined(PNG_MNG_FEATURES_SUPPORTED)
/* Changed from png_byte to png_uint_32 at version 1.2.0 */ /* Changed from png_byte to png_uint_32 at version 1.2.0 */
@ -456,7 +447,7 @@ struct png_struct_def
#endif #endif
/* New member added in libpng-1.2.26 */ /* New member added in libpng-1.2.26 */
png_size_t old_big_row_buf_size; size_t old_big_row_buf_size;
#ifdef PNG_READ_SUPPORTED #ifdef PNG_READ_SUPPORTED
/* New member added in libpng-1.2.30 */ /* New member added in libpng-1.2.30 */

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79
3rdparty/libpng/pngtrans.c vendored
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@ -1,10 +1,10 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -30,7 +30,7 @@ png_set_bgr(png_structrp png_ptr)
#endif #endif
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
/* Turn on 16 bit byte swapping */ /* Turn on 16-bit byte swapping */
void PNGAPI void PNGAPI
png_set_swap(png_structrp png_ptr) png_set_swap(png_structrp png_ptr)
{ {
@ -172,13 +172,14 @@ png_set_filler(png_structrp png_ptr, png_uint_32 filler, int filler_loc)
* size! * size!
*/ */
png_app_error(png_ptr, png_app_error(png_ptr,
"png_set_filler is invalid for low bit depth gray output"); "png_set_filler is invalid for"
" low bit depth gray output");
return; return;
} }
default: default:
png_app_error(png_ptr, png_app_error(png_ptr,
"png_set_filler: inappropriate color type"); "png_set_filler: inappropriate color type");
return; return;
} }
# else # else
@ -268,8 +269,8 @@ png_do_invert(png_row_infop row_info, png_bytep row)
if (row_info->color_type == PNG_COLOR_TYPE_GRAY) if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
{ {
png_bytep rp = row; png_bytep rp = row;
png_size_t i; size_t i;
png_size_t istop = row_info->rowbytes; size_t istop = row_info->rowbytes;
for (i = 0; i < istop; i++) for (i = 0; i < istop; i++)
{ {
@ -282,8 +283,8 @@ png_do_invert(png_row_infop row_info, png_bytep row)
row_info->bit_depth == 8) row_info->bit_depth == 8)
{ {
png_bytep rp = row; png_bytep rp = row;
png_size_t i; size_t i;
png_size_t istop = row_info->rowbytes; size_t istop = row_info->rowbytes;
for (i = 0; i < istop; i += 2) for (i = 0; i < istop; i += 2)
{ {
@ -297,8 +298,8 @@ png_do_invert(png_row_infop row_info, png_bytep row)
row_info->bit_depth == 16) row_info->bit_depth == 16)
{ {
png_bytep rp = row; png_bytep rp = row;
png_size_t i; size_t i;
png_size_t istop = row_info->rowbytes; size_t istop = row_info->rowbytes;
for (i = 0; i < istop; i += 4) for (i = 0; i < istop; i += 4)
{ {
@ -313,7 +314,7 @@ png_do_invert(png_row_infop row_info, png_bytep row)
#ifdef PNG_16BIT_SUPPORTED #ifdef PNG_16BIT_SUPPORTED
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
/* Swaps byte order on 16 bit depth images */ /* Swaps byte order on 16-bit depth images */
void /* PRIVATE */ void /* PRIVATE */
png_do_swap(png_row_infop row_info, png_bytep row) png_do_swap(png_row_infop row_info, png_bytep row)
{ {
@ -344,7 +345,7 @@ png_do_swap(png_row_infop row_info, png_bytep row)
#endif #endif
#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) #if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
static PNG_CONST png_byte onebppswaptable[256] = { static const png_byte onebppswaptable[256] = {
0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0,
0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
@ -379,7 +380,7 @@ static PNG_CONST png_byte onebppswaptable[256] = {
0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
}; };
static PNG_CONST png_byte twobppswaptable[256] = { static const png_byte twobppswaptable[256] = {
0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0, 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0,
0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0, 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0,
0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4, 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4,
@ -414,7 +415,7 @@ static PNG_CONST png_byte twobppswaptable[256] = {
0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF
}; };
static PNG_CONST png_byte fourbppswaptable[256] = { static const png_byte fourbppswaptable[256] = {
0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0, 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0,
0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71,
@ -513,11 +514,15 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
if (at_start != 0) /* Skip initial filler */ if (at_start != 0) /* Skip initial filler */
++sp; ++sp;
else /* Skip initial channel and, for sp, the filler */ else /* Skip initial channel and, for sp, the filler */
sp += 2, ++dp; {
sp += 2; ++dp;
}
/* For a 1 pixel wide image there is nothing to do */ /* For a 1 pixel wide image there is nothing to do */
while (sp < ep) while (sp < ep)
*dp++ = *sp, sp += 2; {
*dp++ = *sp; sp += 2;
}
row_info->pixel_depth = 8; row_info->pixel_depth = 8;
} }
@ -527,10 +532,14 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
if (at_start != 0) /* Skip initial filler */ if (at_start != 0) /* Skip initial filler */
sp += 2; sp += 2;
else /* Skip initial channel and, for sp, the filler */ else /* Skip initial channel and, for sp, the filler */
sp += 4, dp += 2; {
sp += 4; dp += 2;
}
while (sp < ep) while (sp < ep)
*dp++ = *sp++, *dp++ = *sp, sp += 3; {
*dp++ = *sp++; *dp++ = *sp; sp += 3;
}
row_info->pixel_depth = 16; row_info->pixel_depth = 16;
} }
@ -553,11 +562,15 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
if (at_start != 0) /* Skip initial filler */ if (at_start != 0) /* Skip initial filler */
++sp; ++sp;
else /* Skip initial channels and, for sp, the filler */ else /* Skip initial channels and, for sp, the filler */
sp += 4, dp += 3; {
sp += 4; dp += 3;
}
/* Note that the loop adds 3 to dp and 4 to sp each time. */ /* Note that the loop adds 3 to dp and 4 to sp each time. */
while (sp < ep) while (sp < ep)
*dp++ = *sp++, *dp++ = *sp++, *dp++ = *sp, sp += 2; {
*dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp; sp += 2;
}
row_info->pixel_depth = 24; row_info->pixel_depth = 24;
} }
@ -567,14 +580,16 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
if (at_start != 0) /* Skip initial filler */ if (at_start != 0) /* Skip initial filler */
sp += 2; sp += 2;
else /* Skip initial channels and, for sp, the filler */ else /* Skip initial channels and, for sp, the filler */
sp += 8, dp += 6; {
sp += 8; dp += 6;
}
while (sp < ep) while (sp < ep)
{ {
/* Copy 6 bytes, skip 2 */ /* Copy 6 bytes, skip 2 */
*dp++ = *sp++, *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
*dp++ = *sp++, *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp++;
*dp++ = *sp++, *dp++ = *sp, sp += 3; *dp++ = *sp++; *dp++ = *sp; sp += 3;
} }
row_info->pixel_depth = 48; row_info->pixel_depth = 48;
@ -594,7 +609,7 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
return; /* The filler channel has gone already */ return; /* The filler channel has gone already */
/* Fix the rowbytes value. */ /* Fix the rowbytes value. */
row_info->rowbytes = dp-row; row_info->rowbytes = (size_t)(dp-row);
} }
#endif #endif
@ -692,8 +707,8 @@ png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
* and this calculation is used because it avoids warnings that other * and this calculation is used because it avoids warnings that other
* forms produced on either GCC or MSVC. * forms produced on either GCC or MSVC.
*/ */
int padding = (-row_info->pixel_depth * row_info->width) & 7; int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width);
png_bytep rp = png_ptr->row_buf + row_info->rowbytes; png_bytep rp = png_ptr->row_buf + row_info->rowbytes - 1;
switch (row_info->bit_depth) switch (row_info->bit_depth)
{ {
@ -704,7 +719,7 @@ png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
*/ */
for (; rp > png_ptr->row_buf; rp--) for (; rp > png_ptr->row_buf; rp--)
{ {
if (*rp >> padding != 0) if ((*rp >> padding) != 0)
png_ptr->num_palette_max = 1; png_ptr->num_palette_max = 1;
padding = 0; padding = 0;
} }
@ -797,7 +812,7 @@ png_set_user_transform_info(png_structrp png_ptr, png_voidp
(png_ptr->flags & PNG_FLAG_ROW_INIT) != 0) (png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
{ {
png_app_error(png_ptr, png_app_error(png_ptr,
"info change after png_start_read_image or png_read_update_info"); "info change after png_start_read_image or png_read_update_info");
return; return;
} }
#endif #endif

18
3rdparty/libpng/pngwio.c vendored
View File

@ -1,10 +1,10 @@
/* pngwio.c - functions for data output /* pngwio.c - functions for data output
* *
* Last changed in libpng 1.6.15 [November 20, 2014] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2014 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2014,2016,2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -26,16 +26,16 @@
* writes to a file pointer. Note that this routine sometimes gets called * writes to a file pointer. Note that this routine sometimes gets called
* with very small lengths, so you should implement some kind of simple * with very small lengths, so you should implement some kind of simple
* buffering if you are using unbuffered writes. This should never be asked * buffering if you are using unbuffered writes. This should never be asked
* to write more than 64K on a 16 bit machine. * to write more than 64K on a 16-bit machine.
*/ */
void /* PRIVATE */ void /* PRIVATE */
png_write_data(png_structrp png_ptr, png_const_bytep data, png_size_t length) png_write_data(png_structrp png_ptr, png_const_bytep data, size_t length)
{ {
/* NOTE: write_data_fn must not change the buffer! */ /* NOTE: write_data_fn must not change the buffer! */
if (png_ptr->write_data_fn != NULL ) if (png_ptr->write_data_fn != NULL )
(*(png_ptr->write_data_fn))(png_ptr, png_constcast(png_bytep,data), (*(png_ptr->write_data_fn))(png_ptr, png_constcast(png_bytep,data),
length); length);
else else
png_error(png_ptr, "Call to NULL write function"); png_error(png_ptr, "Call to NULL write function");
@ -48,9 +48,9 @@ png_write_data(png_structrp png_ptr, png_const_bytep data, png_size_t length)
* than changing the library. * than changing the library.
*/ */
void PNGCBAPI void PNGCBAPI
png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) png_default_write_data(png_structp png_ptr, png_bytep data, size_t length)
{ {
png_size_t check; size_t check;
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;

950
3rdparty/libpng/pngwrite.c vendored
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File diff suppressed because it is too large Load Diff

37
3rdparty/libpng/pngwtran.c vendored
View File

@ -1,10 +1,10 @@
/* pngwtran.c - transforms the data in a row for PNG writers /* pngwtran.c - transforms the data in a row for PNG writers
* *
* Last changed in libpng 1.6.17 [March 26, 2015] * Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2015 Glenn Randers-Pehrson * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * Copyright (c) 1996-1997 Andreas Dilger
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
* *
* This code is released under the libpng license. * This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer * For conditions of distribution and use, see the disclaimer
@ -71,7 +71,8 @@ png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
case 2: case 2:
{ {
png_bytep sp, dp; png_bytep sp, dp;
int shift, v; unsigned int shift;
int v;
png_uint_32 i; png_uint_32 i;
png_uint_32 row_width = row_info->width; png_uint_32 row_width = row_info->width;
@ -110,7 +111,8 @@ png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
case 4: case 4:
{ {
png_bytep sp, dp; png_bytep sp, dp;
int shift, v; unsigned int shift;
int v;
png_uint_32 i; png_uint_32 i;
png_uint_32 row_width = row_info->width; png_uint_32 row_width = row_info->width;
@ -175,7 +177,7 @@ png_do_shift(png_row_infop row_info, png_bytep row,
if (row_info->color_type != PNG_COLOR_TYPE_PALETTE) if (row_info->color_type != PNG_COLOR_TYPE_PALETTE)
{ {
int shift_start[4], shift_dec[4]; int shift_start[4], shift_dec[4];
int channels = 0; unsigned int channels = 0;
if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0) if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
{ {
@ -210,9 +212,9 @@ png_do_shift(png_row_infop row_info, png_bytep row,
if (row_info->bit_depth < 8) if (row_info->bit_depth < 8)
{ {
png_bytep bp = row; png_bytep bp = row;
png_size_t i; size_t i;
unsigned int mask; unsigned int mask;
png_size_t row_bytes = row_info->rowbytes; size_t row_bytes = row_info->rowbytes;
if (bit_depth->gray == 1 && row_info->bit_depth == 2) if (bit_depth->gray == 1 && row_info->bit_depth == 2)
mask = 0x55; mask = 0x55;
@ -252,8 +254,7 @@ png_do_shift(png_row_infop row_info, png_bytep row,
for (i = 0; i < istop; i++, bp++) for (i = 0; i < istop; i++, bp++)
{ {
unsigned int c = i%channels;
const unsigned int c = i%channels;
int j; int j;
unsigned int v, out; unsigned int v, out;
@ -281,7 +282,7 @@ png_do_shift(png_row_infop row_info, png_bytep row,
for (bp = row, i = 0; i < istop; i++) for (bp = row, i = 0; i < istop; i++)
{ {
const unsigned int c = i%channels; unsigned int c = i%channels;
int j; int j;
unsigned int value, v; unsigned int value, v;
@ -422,7 +423,7 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
*(dp++) = *(sp++); *(dp++) = *(sp++);
*/ */
sp+=3; dp = sp; sp+=3; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++)); *dp = (png_byte)(255 - *(sp++));
} }
} }
@ -446,7 +447,7 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
*/ */
sp+=6; dp = sp; sp+=6; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
*(dp++) = (png_byte)(255 - *(sp++)); *dp = (png_byte)(255 - *(sp++));
} }
} }
#endif /* WRITE_16BIT */ #endif /* WRITE_16BIT */
@ -484,7 +485,7 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
*/ */
sp+=2; dp = sp; sp+=2; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
*(dp++) = (png_byte)(255 - *(sp++)); *dp = (png_byte)(255 - *(sp++));
} }
} }
#endif /* WRITE_16BIT */ #endif /* WRITE_16BIT */
@ -512,7 +513,7 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
(png_ptr, /* png_ptr */ (png_ptr, /* png_ptr */
row_info, /* row_info: */ row_info, /* row_info: */
/* png_uint_32 width; width of row */ /* png_uint_32 width; width of row */
/* png_size_t rowbytes; number of bytes in row */ /* size_t rowbytes; number of bytes in row */
/* png_byte color_type; color type of pixels */ /* png_byte color_type; color type of pixels */
/* png_byte bit_depth; bit depth of samples */ /* png_byte bit_depth; bit depth of samples */
/* png_byte channels; number of channels (1-4) */ /* png_byte channels; number of channels (1-4) */
@ -523,7 +524,7 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
#ifdef PNG_WRITE_FILLER_SUPPORTED #ifdef PNG_WRITE_FILLER_SUPPORTED
if ((png_ptr->transformations & PNG_FILLER) != 0) if ((png_ptr->transformations & PNG_FILLER) != 0)
png_do_strip_channel(row_info, png_ptr->row_buf + 1, png_do_strip_channel(row_info, png_ptr->row_buf + 1,
!(png_ptr->flags & PNG_FLAG_FILLER_AFTER)); !(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
#endif #endif
#ifdef PNG_WRITE_PACKSWAP_SUPPORTED #ifdef PNG_WRITE_PACKSWAP_SUPPORTED
@ -547,7 +548,7 @@ png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info)
#ifdef PNG_WRITE_SHIFT_SUPPORTED #ifdef PNG_WRITE_SHIFT_SUPPORTED
if ((png_ptr->transformations & PNG_SHIFT) != 0) if ((png_ptr->transformations & PNG_SHIFT) != 0)
png_do_shift(row_info, png_ptr->row_buf + 1, png_do_shift(row_info, png_ptr->row_buf + 1,
&(png_ptr->shift)); &(png_ptr->shift));
#endif #endif
#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED #ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED

1304
3rdparty/libpng/pngwutil.c vendored
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383
3rdparty/libpng/projects/owatcom/libpng.tgt vendored
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set awk=
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160
3rdparty/libpng/projects/owatcom/pngconfig.mak vendored
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@ -1,160 +0,0 @@
# This is an OpenWatcom make file which builds pnglibconf.h - the libpng
# configuration header. You can ignore this file if you don't need to
# configure libpng; a default configuration will be built.
#
# For more information build libpng.wpj under the IDE and then read the
# generated files:
#
# config.inf: Basic configuration information for a standard build.
# pngconfig.dfa: Advanced configuration for non-standard libpng builds.
#
DELETE=rm -f
ECHO=echo
COPY=copy
#
# If your configuration needs to test compiler flags when building
# pnglibconf.h you may need to override the following on the wmake command
# line:
CFLAGS=
CC=wcl386
CPP=$(CC) -pw0
#
# Read awk from the environment if set, else it can be set on the command
# line (the default approach is to set the %awk% environment variable in the
# IDE libpng.wpj 'before' rule - this setting is local.)
!ifdef %awk
AWK=$(%awk)
!endif
#
# pnglibconf.h must exist in the source directory, this is the final rule
# which copies the local built version (and this is the default target for
# this makefile.)
..\..\pnglibconf.h: pnglibconf.h
$(COPY) pnglibconf.h $@
!ifdef AWK
# CPPFLAGS should contain the options to control the result,
# but DEFS and CFLAGS are also supported here, override
# as appropriate
DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
pnglibconf.h: pnglibconf.dfn
$(DELETE) $@ dfn.c dfn1.out dfn2.out
$(ECHO) $#include "pnglibconf.dfn" >dfn.c
$(CPP) $(DFNFLAGS) dfn.c >dfn1.out
$(AWK) -f << dfn1.out >dfn2.out
/^.*PNG_DEFN_MAGIC-.*-PNG_DEFN_END.*$$/{
sub(/^.*PNG_DEFN_MAGIC-/, "")
sub(/ *-PNG_DEFN_END.*$$/, "")
gsub(/ *@@@ */, "")
print
}
<<
$(COPY) dfn2.out $@
@type << >pngconfig.inf
This is a locally configurable build of libpng.lib; for configuration
instructions consult and edit projects/openwatcom/pngconfig.dfa
<<
$(DELETE) dfn.c dfn1.out dfn2.out
pnglibconf.dfn: ..\..\scripts\pnglibconf.dfa ..\..\scripts\options.awk pngconfig.dfa ..\..\pngconf.h
$(DELETE) $@ dfn1.out dfn2.out
$(AWK) -f ..\..\scripts\options.awk out=dfn1.out version=search ..\..\pngconf.h ..\..\scripts\pnglibconf.dfa pngconfig.dfa $(DFA_XTRA) 1>&2
$(AWK) -f ..\..\scripts\options.awk out=dfn2.out dfn1.out 1>&2
$(COPY) dfn2.out $@
$(DELETE) dfn1.out dfn2.out
!else
# The following lines are used to copy scripts\pnglibconf.h.prebuilt and make
# the required change to the calling convention.
#
# By default libpng is built to use the __cdecl calling convention on
# Windows. This gives compatibility with MSVC and GCC. Unfortunately it
# does not work with OpenWatcom because OpenWatcom implements longjmp using
# the __watcall convention (compared with both MSVC and GCC which use __cdecl
# for library functions.)
#
# Thus the default must be changed to build on OpenWatcom and, once changed,
# the result will not be compatible with applications built using other
# compilers (in fact attempts to build will fail at compile time.)
#
pnglibconf.h: ..\..\scripts\pnglibconf.h.prebuilt .existsonly
@$(ECHO) .
@$(ECHO) .
@$(ECHO) $$(AWK) NOT AVAILABLE: COPYING scripts\pnglibconf.h.prebuilt
@$(ECHO) .
@$(ECHO) .
vi -q -k ":1,$$s/PNG_API_RULE 0$$/PNG_API_RULE 2/\n:w! $@\n:q!\n" ..\..\scripts\pnglibconf.h.prebuilt
@$(ECHO) .
@$(ECHO) .
@$(ECHO) YOU HAVE A DEFAULT CONFIGURATION BECAUSE YOU DO NOT HAVE AWK!
@$(ECHO) .
@$(ECHO) .
@type << >pngconfig.inf
This is the default configuration of libpng.lib, if you wish to
change the configuration please consult the instructions in
projects/owatcom/pngconfig.dfa.
<<
!endif
# Make the default files
defaults: .symbolic
@$(COPY) << config.inf
$# The libpng project is incompletely configured. To complete configuration
$# please complete the following steps:
$#
$# 1) Edit the 'before' rule of libpng.wpj (from the IDE) to define the
$# locations of the zlib include file zlib.h and the built zlib library,
$# zlib.lib.
$#
$# 2) If you want to change libpng to a non-standard configuration also
$# change the definition of 'awk' in the before rule to the name of your
$# awk command. For more instructions on configuration read
$# pngconfig.dfa.
$#
$# 3) Delete this file (config.inf).
<<
@$(COPY) << pngconfig.dfa
$# pngconfig.dfa: this file contains configuration options for libpng.
$# If emtpy the standard configuration will be built. For this file to be
$# used a working version of the program 'awk' is required and the program
$# must be identified in the 'before' rule of the project.
$#
$# If you don't already have 'awk', or the version of awk you have seems not
$# 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)
$# here:
$#
$# http://www.cs.princeton.edu/~bwk/btl.mirror/
$#
$# The executable works just fine.
$#
$# If build issues errors after a change to pngconfig.dfa you have entered
$# inconsistent feature requests, or even malformed requests, in
$# pngconfig.dfa. The error messages from awk should be comprehensible, but
$# if not simply go back to the start (nothing but comments in this file) and
$# enter configuration lines one by one until one produces an error. (Or, of
$# course, do the standard binary chop.)
$#
$# You need to rebuild everything after a change to pnglibconf.dfa - i.e. you
$# must do Actions/Mark All Targets for Remake. This is because the compiler
$# generated dependency information (as of OpenWatcom 1.9) does not record the
$# dependency on pnglibconf.h correctly.
$#
$# If awk isn't set then this file is bypassed. If you just want the standard
$# configuration it is automatically produced from the distributed version
$# (scripts\pnglibconf.h.prebuilt) by editting PNG_API_RULE to 2 (to force use
$# of the OpenWatcom library calling convention.)
$#
<<
clean:: .symbolic
$(DELETE) ..\..\pnglibconf.h pnglibconf.* dfn.c *.out pngconfig.inf
$(DELETE) *.obj *.mbr *.sym *.err *.pch libpng.mk
$(DELETE) libpng.lib libpng.lbr libpng.lb1 libpng.cbr libpng.mk1
$(DELETE) pngtest.exe pngtest.map pngtest.lk1 pngtest.mk1
$(DELETE) pngvalid.exe pngvalid.map pngvalid.lk1 pngvalid.mk1
distclean:: clean .symbolic
$(DELETE) zlib.inf awk.inf config.inf pngconfig.dfa

219
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@ -1,219 +0,0 @@
40
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nc2en
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pngstest --strict --log ../../contrib/pngsuite/basn0g01.png ../../contrib/pngsuite/basn0g02.png ../../contrib/pngsuite/basn0g04.png ../../contrib/pngsuite/basn0g08.png ../../contrib/pngsuite/basn0g16.png ../../contrib/pngsuite/basn2c08.png ../../contrib/pngsuite/basn2c16.png ../../contrib/pngsuite/basn3p01.png ../../contrib/pngsuite/basn3p02.png ../../contrib/pngsuite/basn3p04.png ../../contrib/pngsuite/basn3p08.png ../../contrib/pngsuite/basn4a08.png ../../contrib/pngsuite/basn4a16.png ../../contrib/pngsuite/basn6a08.png ../../contrib/pngsuite/basn6a16.png ../../contrib/pngsuite/ftbbn0g04.png ../../contrib/pngsuite/ftbbn0g01.png ../../contrib/pngsuite/ftbbn0g02.png ../../contrib/pngsuite/ftbbn2c16.png ../../contrib/pngsuite/ftbbn3p08.png ../../contrib/pngsuite/ftbgn2c16.png ../../contrib/pngsuite/ftbgn3p08.png ../../contrib/pngsuite/ftbrn2c08.png ../../contrib/pngsuite/ftbwn0g16.png ../../contrib/pngsuite/ftbwn3p08.png ../../contrib/pngsuite/ftbyn3p08.png ../../contrib/pngsuite/ftp0n0g08.png ../../contrib/pngsuite/ftp0n2c08.png ../../contrib/pngsuite/ftp0n3p08.png ../../contrib/pngsuite/ftp1n3p08.png
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pngstest.exe
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WINLINK
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WINLINK
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libpng.lib zlib.lib
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179
3rdparty/libpng/projects/owatcom/pngtest.tgt vendored
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@ -1,179 +0,0 @@
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MProject
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MVState
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WINLINK
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libpng.lib zlib.lib
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WINLINK
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WINLINK
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libpng.lib zlib.lib
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210
3rdparty/libpng/projects/owatcom/pngvalid.tgt vendored
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@ -1,210 +0,0 @@
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targetIdent
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MProject
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MComponent
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WString
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pngvalid
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pngvalid.exe
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WINLINK
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libpng.lib zlib.lib
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WINLINK
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21
3rdparty/libpng/projects/visualc71/PRJ0041.mak vendored
View File

@ -1,21 +0,0 @@
# Prevent "Cannot find missing dependency..." warnings while compiling
# pngwin.rc (PRJ0041).
all: $(IntDir)\alloc.h \
$(IntDir)\fp.h \
$(IntDir)\m68881.h \
$(IntDir)\mem.h \
$(IntDir)\pngusr.h \
$(IntDir)\strings.h \
$(IntDir)\unistd.h \
$(IntDir)\unixio.h
$(IntDir)\alloc.h \
$(IntDir)\fp.h \
$(IntDir)\m68881.h \
$(IntDir)\mem.h \
$(IntDir)\pngusr.h \
$(IntDir)\strings.h \
$(IntDir)\unistd.h \
$(IntDir)\unixio.h:
@!echo.>$@

58
3rdparty/libpng/projects/visualc71/README.txt vendored
View File

@ -1,58 +0,0 @@
Microsoft Developer Studio Project File, Format Version 7.10 for libpng.
Copyright (C) 2004 Simon-Pierre Cadieux.
This code is released under the libpng license.
For conditions of distribution and use, see copyright notice in png.h
NOTE: This project will be removed from libpng-1.5.0. It has
been replaced with the "vstudio" project.
Assumptions:
* The libpng source files are in ..\..
* The zlib source files are in ..\..\..\zlib
* The zlib project file is in . /* Warning: This is until the zlib project
files get intergrated into the next zlib release. The final zlib project
directory will then be ..\..\..\zlib\projects\visualc71. */
To use:
1) On the main menu, select "File | Open Solution".
Open "libpng.sln".
2) Display the Solution Explorer view (Ctrl+Alt+L)
3) Set one of the project as the StartUp project. If you just want to build the
binaries set "libpng" as the startup project (Select "libpng" tree view
item + Project | Set as StartUp project). If you want to build and test the
binaries set it to "pngtest" (Select "pngtest" tree view item +
Project | Set as StartUp project)
4) Select "Build | Configuration Manager...".
Choose the configuration you wish to build.
5) Select "Build | Clean Solution".
6) Select "Build | Build Solution (Ctrl-Shift-B)"
This project builds the libpng binaries as follows:
* Win32_DLL_Release\libpng16.dll DLL build
* Win32_DLL_Debug\libpng16d.dll DLL build (debug version)
* Win32_DLL_VB\libpng16vb.dll DLL build for Visual Basic, using stdcall
* Win32_LIB_Release\libpng.lib static build
* Win32_LIB_Debug\libpngd.lib static build (debug version)
Notes:
If you change anything in the source files, or select different compiler
settings, please change the DLL name to something different than any of
the above names. Also, make sure that in your "pngusr.h" you define
PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX according to the
instructions provided in "pngconf.h".
All DLLs built by this project use the Microsoft dynamic C runtime library
MSVCR71.DLL (MSVCR71D.DLL for debug versions). If you distribute any of the
above mentioned libraries you may have to include this DLL in your package.
For a list of files that are redistributable in Visual Studio see
$(VCINSTALLDIR)\redist.txt.

44
3rdparty/libpng/projects/visualc71/README_zlib.txt vendored
View File

@ -1,44 +0,0 @@
/* WARNING: This file was put in the LibPNG distribution for convenience only.
It is expected to be part of the next zlib release under
"projects\visualc71\README.txt." */
Microsoft Developer Studio Project File, Format Version 7.10 for zlib.
Copyright (C) 2004 Simon-Pierre Cadieux.
Copyright (C) 2004 Cosmin Truta.
This code is released under the libpng license.
For conditions of distribution and use, see copyright notice in zlib.h.
NOTE: This project will be removed from libpng-1.5.0. It has
been replaced with the "vstudio" project.
To use:
1) On the main menu, select "File | Open Solution".
Open "zlib.sln".
2) Display the Solution Explorer view (Ctrl+Alt+L)
3) Set one of the project as the StartUp project. If you just want to build the
binaries set "zlib" as the startup project (Select "zlib" tree view item +
Project | Set as StartUp project). If you want to build and test the
binaries set it to "example" (Select "example" tree view item + Project |
Set as StartUp project), If you want to build the minigzip utility set it to
"minigzip" (Select "minigzip" tree view item + Project | Set as StartUp
project
4) Select "Build | Configuration Manager...".
Choose the configuration you wish to build.
5) Select "Build | Clean Solution".
6) Select "Build | Build Solution (Ctrl-Shift-B)"
This project builds the zlib binaries as follows:
* Win32_DLL_Release\zlib1.dll DLL build
* Win32_DLL_Debug\zlib1d.dll DLL build (debug version)
* Win32_LIB_Release\zlib.lib static build
* Win32_LIB_Debug\zlibd.lib static build (debug version)

60
3rdparty/libpng/projects/visualc71/libpng.sln vendored
View File

@ -1,60 +0,0 @@
Microsoft Visual Studio Solution File, Format Version 8.00
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libpng", "libpng.vcproj", "{0008960E-E0DD-41A6-8265-00B31DDB4C21}"
ProjectSection(ProjectDependencies) = postProject
{2D4F8105-7D21-454C-9932-B47CAB71A5C0} = {2D4F8105-7D21-454C-9932-B47CAB71A5C0}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngtest", "pngtest.vcproj", "{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}"
ProjectSection(ProjectDependencies) = postProject
{0008960E-E0DD-41A6-8265-00B31DDB4C21} = {0008960E-E0DD-41A6-8265-00B31DDB4C21}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "zlib.vcproj", "{2D4F8105-7D21-454C-9932-B47CAB71A5C0}"
ProjectSection(ProjectDependencies) = postProject
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfiguration) = preSolution
DLL Debug = DLL Debug
DLL Release = DLL Release
DLL VB = DLL VB
LIB Debug = LIB Debug
LIB Release = LIB Release
EndGlobalSection
GlobalSection(ProjectConfiguration) = postSolution
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Debug.ActiveCfg = DLL Debug|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Debug.Build.0 = DLL Debug|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Release.ActiveCfg = DLL Release|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL Release.Build.0 = DLL Release|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL VB.ActiveCfg = DLL VB|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.DLL VB.Build.0 = DLL VB|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Debug.ActiveCfg = LIB Debug|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Debug.Build.0 = LIB Debug|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Release.ActiveCfg = LIB Release|Win32
{0008960E-E0DD-41A6-8265-00B31DDB4C21}.LIB Release.Build.0 = LIB Release|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Debug.ActiveCfg = DLL Debug|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Debug.Build.0 = DLL Debug|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Release.ActiveCfg = DLL Release|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL Release.Build.0 = DLL Release|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL VB.ActiveCfg = DLL VB|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.DLL VB.Build.0 = DLL VB|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Debug.ActiveCfg = LIB Debug|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Debug.Build.0 = LIB Debug|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Release.ActiveCfg = LIB Release|Win32
{FD1C2F86-9EEF-47BD-95A4-530917E17FDA}.LIB Release.Build.0 = LIB Release|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Debug.ActiveCfg = DLL Debug|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Debug.Build.0 = DLL Debug|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Release.ActiveCfg = DLL Release|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL Release.Build.0 = DLL Release|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL VB.ActiveCfg = DLL Release|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.DLL VB.Build.0 = DLL Release|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Debug.ActiveCfg = LIB Debug|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Debug.Build.0 = LIB Debug|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Release.ActiveCfg = LIB Release|Win32
{2D4F8105-7D21-454C-9932-B47CAB71A5C0}.LIB Release.Build.0 = LIB Release|Win32
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
EndGlobalSection
GlobalSection(ExtensibilityAddIns) = postSolution
EndGlobalSection
EndGlobal

419
3rdparty/libpng/projects/visualc71/libpng.vcproj vendored
View File

@ -1,419 +0,0 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.10"
Name="libpng"
RootNamespace="libpng">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="DLL Release|Win32"
OutputDirectory=".\Win32_DLL_Release"
IntermediateDirectory=".\Win32_DLL_Release"
ConfigurationType="2">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..;..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;PNG_BUILD_DLL;ZLIB_DLL;_CRT_SECURE_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="2"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="3"
PrecompiledHeaderThrough="pngpriv.h"
WarningLevel="3"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/libpng16.dll"
LinkIncremental="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"
CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"
PreprocessorDefinitions="NDEBUG"
Culture="1033"
AdditionalIncludeDirectories="..\..;..\..\..\zlib;$(IntDir)"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="DLL Debug|Win32"
OutputDirectory=".\Win32_DLL_Debug"
IntermediateDirectory=".\Win32_DLL_Debug"
ConfigurationType="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..;..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;DEBUG;PNG_DEBUG=1;PNG_BUILD_DLL;ZLIB_DLL;_CRT_SECURE_NO_WARNINGS"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
UsePrecompiledHeader="3"
PrecompiledHeaderThrough="pngpriv.h"
WarningLevel="3"
DebugInformationFormat="4"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/libpng16d.dll"
GenerateDebugInformation="TRUE"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"
CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"
PreprocessorDefinitions="_DEBUG,PNG_DEBUG=1"
Culture="1033"
AdditionalIncludeDirectories="..\..;..\..\..\zlib;$(IntDir)"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="DLL VB|Win32"
OutputDirectory=".\Win32_DLL_VB"
IntermediateDirectory=".\Win32_DLL_VB"
ConfigurationType="2">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..;..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;PNG_BUILD_DLL;ZLIB_DLL;PNGAPI=__stdcall;PNG_NO_MODULEDEF;PNG_LIBPNG_SPECIALBUILD;PNG_USER_PRIVATEBUILD;_CRT_SECURE_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="2"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="3"
PrecompiledHeaderThrough="pngpriv.h"
WarningLevel="3"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/libpng16vb.dll"
LinkIncremental="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"
CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"
AdditionalOptions="/d PNG_NO_PEDANTIC_WARNINGS /d PNG_LIBPNG_DLLFNAME_POSTFIX=&quot;&quot;&quot;&quot;VB&quot;&quot;&quot;&quot; /d PNG_LIBPNG_SPECIALBUILD=&quot;&quot;&quot;&quot;__stdcall calling convention used for exported functions&quot;&quot;&quot;&quot;"
PreprocessorDefinitions="NDEBUG"
Culture="1033"
AdditionalIncludeDirectories="..\..;..\..\..\zlib;$(IntDir)"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="LIB Release|Win32"
OutputDirectory=".\Win32_LIB_Release"
IntermediateDirectory=".\Win32_LIB_Release"
ConfigurationType="4">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..;..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="0"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="3"
PrecompiledHeaderThrough="pngpriv.h"
WarningLevel="3"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLibrarianTool"
OutputFile="$(OutDir)/libpng.lib"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"
CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="LIB Debug|Win32"
OutputDirectory=".\Win32_LIB_Debug"
IntermediateDirectory=".\Win32_LIB_Debug"
ConfigurationType="4">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..;..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;DEBUG;PNG_DEBUG=1;_CRT_SECURE_NO_WARNINGS"
BasicRuntimeChecks="3"
RuntimeLibrary="1"
UsePrecompiledHeader="3"
PrecompiledHeaderThrough="pngpriv.h"
WarningLevel="3"
DebugInformationFormat="4"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLibrarianTool"
OutputFile="$(OutDir)/libpngd.lib"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"
CommandLine="copy ..\..\scripts\pnglibconf.h.prebuilt ..\..\pnglibconf.h"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
<File
RelativePath="..\..\png.c">
<FileConfiguration
Name="DLL Release|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"/>
</FileConfiguration>
<FileConfiguration
Name="DLL Debug|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"/>
</FileConfiguration>
<FileConfiguration
Name="DLL VB|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Release|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"/>
</FileConfiguration>
</File>
<File
RelativePath="..\..\pngerror.c">
<FileConfiguration
Name="DLL Release|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="1"/>
</FileConfiguration>
<FileConfiguration
Name="DLL Debug|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="1"/>
</FileConfiguration>
<FileConfiguration
Name="DLL VB|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="1"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Release|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="1"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32">
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="1"/>
</FileConfiguration>
</File>
<File
RelativePath="..\..\pngget.c">
</File>
<File
RelativePath="..\..\pngmem.c">
</File>
<File
RelativePath="..\..\pngpread.c">
</File>
<File
RelativePath="..\..\pngread.c">
</File>
<File
RelativePath="..\..\pngrio.c">
</File>
<File
RelativePath="..\..\pngrtran.c">
</File>
<File
RelativePath="..\..\pngrutil.c">
</File>
<File
RelativePath="..\..\pngset.c">
</File>
<File
RelativePath="..\..\pngtrans.c">
</File>
<File
RelativePath="..\..\pngwio.c">
</File>
<File
RelativePath="..\..\pngwrite.c">
</File>
<File
RelativePath="..\..\pngwtran.c">
</File>
<File
RelativePath="..\..\pngwutil.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl">
<File
RelativePath="..\..\png.h">
</File>
<File
RelativePath="..\..\pngconf.h">
</File>
<File
RelativePath="..\..\pngpriv.h">
</File>
</Filter>
<Filter
Name="Resource Files"
Filter="ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
<File
RelativePath="..\..\scripts\pngwin.rc">
<FileConfiguration
Name="LIB Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCResourceCompilerTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCResourceCompilerTool"/>
</FileConfiguration>
</File>
</Filter>
<File
RelativePath=".\PRJ0041.mak">
<FileConfiguration
Name="DLL Release|Win32">
<Tool
Name="VCCustomBuildTool"
Description="Create dummy include files to prevent &quot;Cannot find missing dependency...&quot; warnings."
CommandLine="nmake -f PRJ0041.mak IntDir=$(IntDir)"
Outputs="$(IntDir)\alloc.h;$(IntDir)\fp.h;$(IntDir)\m68881.h;$(IntDir)\mem.h;$(IntDir)\pngusr.h;$(IntDir)\strings.h;$(IntDir)\unistd.h;$(IntDir)\unixio.h"/>
</FileConfiguration>
<FileConfiguration
Name="DLL Debug|Win32">
<Tool
Name="VCCustomBuildTool"
Description="Create dummy include files to prevent &quot;Cannot find missing dependency...&quot; warnings."
CommandLine="nmake -f PRJ0041.mak IntDir=$(IntDir)"
Outputs="$(IntDir)\alloc.h;$(IntDir)\fp.h;$(IntDir)\m68881.h;$(IntDir)\mem.h;$(IntDir)\pngusr.h;$(IntDir)\strings.h;$(IntDir)\unistd.h;$(IntDir)\unixio.h"/>
</FileConfiguration>
<FileConfiguration
Name="DLL VB|Win32">
<Tool
Name="VCCustomBuildTool"
Description="Create dummy include files to prevent &quot;Cannot find missing dependency...&quot; warnings."
CommandLine="nmake -f PRJ0041.mak IntDir=$(IntDir)"
Outputs="$(IntDir)\alloc.h;$(IntDir)\fp.h;$(IntDir)\m68881.h;$(IntDir)\mem.h;$(IntDir)\pngusr.h;$(IntDir)\strings.h;$(IntDir)\unistd.h;$(IntDir)\unixio.h"/>
</FileConfiguration>
</File>
<File
RelativePath="README.txt">
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

267
3rdparty/libpng/projects/visualc71/pngtest.vcproj vendored
View File

@ -1,267 +0,0 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.10"
Name="pngtest"
RootNamespace="pngtest">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="DLL Release|Win32"
OutputDirectory=".\Win32_DLL_Release\Test"
IntermediateDirectory=".\Win32_DLL_Release\Test"
ConfigurationType="1">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;PNG_DLL;PNG_NO_STDIO;_CRT_SECURE_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="2"
EnableFunctionLevelLinking="TRUE"
WarningLevel="3"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"
Description="Testing..."
CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
Outputs="$(IntDir)\pngout.png"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/pngtest.exe"
LinkIncremental="1"
SubSystem="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="DLL Debug|Win32"
OutputDirectory=".\Win32_DLL_Debug\Test"
IntermediateDirectory=".\Win32_DLL_Debug\Test"
ConfigurationType="1">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;PNG_DLL;PNG_NO_STDIO;_CRT_SECURE_NO_WARNINGS"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
WarningLevel="3"
DebugInformationFormat="4"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"
Description="Testing..."
CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
Outputs="$(IntDir)\pngout.png"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/pngtest.exe"
GenerateDebugInformation="TRUE"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="DLL VB|Win32"
OutputDirectory=".\Win32_DLL_VB\Test"
IntermediateDirectory=".\Win32_DLL_VB\Test"
ConfigurationType="1">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;PNG_DLL;PNG_NO_STDIO;PNGAPI=__stdcall;PNG_USER_PRIVATEBUILD;_CRT_SECURE_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="2"
EnableFunctionLevelLinking="TRUE"
WarningLevel="2"
CallingConvention="2"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"
Description="Testing..."
CommandLine="set path=$(OutDir)\..;$(OutDir)\..\..\Win32_DLL_Release\ZLib
$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
Outputs="$(IntDir)\pngout.png"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/pngtest.exe"
LinkIncremental="1"
IgnoreDefaultLibraryNames="$(IntDir)\libpng16b.lib"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="LIB Release|Win32"
OutputDirectory=".\Win32_LIB_Release\Test"
IntermediateDirectory=".\Win32_LIB_Release\Test"
ConfigurationType="1">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="0"
EnableFunctionLevelLinking="TRUE"
WarningLevel="3"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"
Description="Testing..."
CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
Outputs="$(IntDir)\pngout.png"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/pngtest.exe"
LinkIncremental="1"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="LIB Debug|Win32"
OutputDirectory=".\Win32_LIB_Debug\Test"
IntermediateDirectory=".\Win32_LIB_Debug\Test"
ConfigurationType="1">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\scripts;..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS"
BasicRuntimeChecks="3"
RuntimeLibrary="1"
WarningLevel="3"
DebugInformationFormat="4"
CompileAs="0"/>
<Tool
Name="VCCustomBuildTool"
Description="Testing..."
CommandLine="set path=$(OutDir)\..;$(OutDir)\..\ZLib
$(TargetPath) ..\..\pngtest.png $(IntDir)\pngout.png"
Outputs="$(IntDir)\pngout.png"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/pngtest.exe"
GenerateDebugInformation="TRUE"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
<File
RelativePath="..\..\pngtest.c">
</File>
</Filter>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

391
3rdparty/libpng/projects/visualc71/zlib.vcproj vendored
View File

@ -1,391 +0,0 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.10"
Name="zlib">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="DLL Release|Win32"
OutputDirectory=".\Win32_DLL_Release\ZLib"
IntermediateDirectory=".\Win32_DLL_Release\ZLib"
ConfigurationType="2">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="2"
EnableFunctionLevelLinking="TRUE"
WarningLevel="3"
CompileAs="1"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)\zlib1.dll"
LinkIncremental="1"
ModuleDefinitionFile="..\..\..\zlib\win32\zlib.def"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"
PreprocessorDefinitions="NDEBUG"
Culture="1033"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="DLL Debug|Win32"
OutputDirectory=".\Win32_DLL_Debug\ZLib"
IntermediateDirectory=".\Win32_DLL_Debug\ZLib"
ConfigurationType="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
WarningLevel="3"
DebugInformationFormat="4"
CompileAs="1"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)\zlib1d.dll"
ModuleDefinitionFile="..\..\..\zlib\win32\zlib.def"
GenerateDebugInformation="TRUE"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"
PreprocessorDefinitions="_DEBUG"
Culture="1033"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="LIB Release|Win32"
OutputDirectory=".\Win32_LIB_Release\ZLib"
IntermediateDirectory=".\Win32_LIB_Release\ZLib"
ConfigurationType="4">
<Tool
Name="VCCLCompilerTool"
InlineFunctionExpansion="1"
AdditionalIncludeDirectories="..\..\..\zlib"
PreprocessorDefinitions="WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
StringPooling="TRUE"
RuntimeLibrary="0"
EnableFunctionLevelLinking="TRUE"
WarningLevel="3"
CompileAs="1"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLibrarianTool"
OutputFile="$(OutDir)\zlib.lib"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
<Configuration
Name="LIB Debug|Win32"
OutputDirectory=".\Win32_LIB_Debug\ZLib"
IntermediateDirectory=".\Win32_LIB_Debug\ZLib"
ConfigurationType="4">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\..\zlib"
PreprocessorDefinitions="WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS"
BasicRuntimeChecks="3"
RuntimeLibrary="1"
WarningLevel="3"
DebugInformationFormat="4"
CompileAs="1"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLibrarianTool"
OutputFile="$(OutDir)\zlibd.lib"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCXMLDataGeneratorTool"/>
<Tool
Name="VCManagedWrapperGeneratorTool"/>
<Tool
Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;rc;def;r;odl;idl;hpj;bat">
<File
RelativePath="..\..\..\zlib\adler32.c">
</File>
<File
RelativePath="..\..\..\zlib\compress.c">
</File>
<File
RelativePath="..\..\..\zlib\crc32.c">
</File>
<File
RelativePath="..\..\..\zlib\deflate.c">
</File>
<File
RelativePath="..\..\..\zlib\gzlib.c">
</File>
<File
RelativePath="..\..\..\zlib\gzclose.c">
</File>
<File
RelativePath="..\..\..\zlib\gzread.c">
</File>
<File
RelativePath="..\..\..\zlib\gzwrite.c">
</File>
<File
RelativePath="..\..\..\zlib\infback.c">
</File>
<File
RelativePath="..\..\..\zlib\inffast.c">
</File>
<File
RelativePath="..\..\..\zlib\inflate.c">
</File>
<File
RelativePath="..\..\..\zlib\inftrees.c">
</File>
<File
RelativePath="..\..\..\zlib\trees.c">
</File>
<File
RelativePath="..\..\..\zlib\uncompr.c">
</File>
<File
RelativePath="..\..\..\zlib\win32\zlib.def">
<FileConfiguration
Name="LIB Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
</File>
<File
RelativePath="..\..\..\zlib\zutil.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl">
<File
RelativePath="..\..\..\zlib\crc32.h">
</File>
<File
RelativePath="..\..\..\zlib\deflate.h">
</File>
<File
RelativePath="..\..\..\zlib\inffast.h">
</File>
<File
RelativePath="..\..\..\zlib\inffixed.h">
</File>
<File
RelativePath="..\..\..\zlib\inflate.h">
</File>
<File
RelativePath="..\..\..\zlib\inftrees.h">
</File>
<File
RelativePath="..\..\..\zlib\trees.h">
</File>
<File
RelativePath="..\..\..\zlib\zconf.h">
</File>
<File
RelativePath="..\..\..\zlib\zlib.h">
</File>
<File
RelativePath="..\..\..\zlib\zutil.h">
</File>
</Filter>
<Filter
Name="Resource Files"
Filter="ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
<File
RelativePath="..\..\..\zlib\win32\zlib1.rc">
<FileConfiguration
Name="LIB Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCResourceCompilerTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCResourceCompilerTool"/>
</FileConfiguration>
</File>
</Filter>
<Filter
Name="Assembler Files (Unsupported)"
Filter="asm;obj;c;cpp;cxx;h;hpp;hxx">
<File
RelativePath="..\..\..\zlib\contrib\masmx86\gvmat32.asm">
<FileConfiguration
Name="DLL Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="DLL Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
</File>
<File
RelativePath="..\..\..\zlib\contrib\masmx86\gvmat32c.c">
<FileConfiguration
Name="DLL Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCLCompilerTool"/>
</FileConfiguration>
<FileConfiguration
Name="DLL Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCLCompilerTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCLCompilerTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCLCompilerTool"/>
</FileConfiguration>
</File>
<File
RelativePath="..\..\..\zlib\contrib\masmx86\inffas32.asm">
<FileConfiguration
Name="DLL Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="DLL Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Release|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
<FileConfiguration
Name="LIB Debug|Win32"
ExcludedFromBuild="TRUE">
<Tool
Name="VCCustomBuildTool"/>
</FileConfiguration>
</File>
</Filter>
<File
RelativePath="README.txt">
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

27
3rdparty/libpng/projects/vstudio/WARNING vendored
View File

@ -1,27 +0,0 @@
WARNING
=======
Libpng 1.6 does not use the default run-time library when building static
library builds of libpng; instead of the shared DLL runtime it uses a static
runtime. If you need to change this make sure to change the setting on all the
relevant projects:
libpng
zlib
all the test programs
The runtime library settings for each build are as follows:
Release Debug
DLL /MD /MDd
Library /MT /MTd
NOTICE that libpng 1.5 erroneously used /MD for Debug DLL builds; if you used
the debug builds in your app and you changed your app to use /MD you will need
to change it to /MDd for libpng 1.6.
The Visual Studio 2010 defaults for a Win32 DLL or Static Library project are
as follows:
Release Debug
DLL /MD /MDd
Static Library /MD /MDd

60
3rdparty/libpng/projects/vstudio/pnglibconf/pnglibconf.vcxproj vendored
View File

@ -1,60 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{EB33566E-DA7F-4D28-9077-88C0B7C77E35}</ProjectGuid>
<RootNamespace>pnglibconf</RootNamespace>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
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215
3rdparty/libpng/projects/vstudio/pngstest/pngstest.vcxproj vendored
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216
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215
3rdparty/libpng/projects/vstudio/pngunknown/pngunknown.vcxproj vendored
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@ -1,215 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
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@ -1,215 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<CustomBuildAfterTargets />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
<LinkIncremental>false</LinkIncremental>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<WarningLevel>Level4</WarningLevel>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;PNG_USE_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>$(ZLibSrcDir);..\..\..\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
<CustomBuildStep>
<Message>Executing PNG validation program</Message>
<Command>"$(OutDir)pngvalid.exe" --touch "$(IntDir)pngvalid.out"</Command>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
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<WarningLevel>Level4</WarningLevel>
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<Message>Executing PNG validation program</Message>
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65
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@ -1,65 +0,0 @@
VisualStudio instructions
libpng version 1.6.17 - March 26, 2015
Copyright (c) 1998-2010 Glenn Randers-Pehrson
This code is released under the libpng license.
For conditions of distribution and use, see the disclaimer
and license in png.h
This directory contains support for building libpng under MicroSoft
VisualStudio 2010. It may also work under later versions of VisualStudio.
You should be familiar with VisualStudio before using this directory.
Initial preparations
====================
You must enter some information in zlib.props before attempting to build
with this 'solution'. Please read and edit zlib.props first. You will
probably not be familiar with the contents of zlib.props - do not worry,
it is mostly harmless.
This is all you need to do to build the 'release' and 'release library'
configurations.
Debugging
=========
The release configurations default to /Ox optimization. Full debugging
information is produced (in the .pdb), but if you encounter a problem the
optimization may make it difficult to debug. Simply rebuild with a lower
optimization level (e.g. /Od.)
Linking your application
========================
Normally you should link against the 'release' configuration. This builds a
DLL for libpng with the default runtime options used by Visual Studio 2010.
In particular the runtime library is the "MultiThreaded DLL" version.
If you use Visual Studio defaults to build your application you will have no
problems.
If you don't use the Visual Studio defaults your application must still be built
with the default runtime option (/MD). If, for some reason, it is not then your
application will crash inside libpng16.dll as soon as libpng tries to read
from a file handle you pass in.
If you do not want to use the DLL, for example for a very small application,
the 'release library' configuration may be more appropriate. This is built
with a non-standard runtime library - the "MultiThreaded" version. When you
build your application it must be compiled with this option (/MT), otherwise
it will not build (if you are lucky) or crash (if you are not.)
Stop reading here
=================
You have enough information to build a working application.
Debug versions have limited support
===================================
This solution includes limited support for debug versions of libpng. You
do not need these unless your own solution itself uses debug builds (it is
far more effective to debug on the release builds, there is no point building
a special debug build unless you have heap corruption problems that you can't
track down.)
The debug build of libpng is minimally supported. Support for debug builds of
zlib is also minimal. You really don't want to do this.

109
3rdparty/libpng/projects/vstudio/vstudio.sln vendored
View File

@ -1,109 +0,0 @@
Microsoft Visual Studio Solution File, Format Version 11.00
# Visual Studio 2010
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "zlib\zlib.vcxproj", "{60F89955-91C6-3A36-8000-13C592FEC2DF}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pnglibconf", "pnglibconf\pnglibconf.vcxproj", "{EB33566E-DA7F-4D28-9077-88C0B7C77E35}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libpng", "libpng\libpng.vcxproj", "{D6973076-9317-4EF2-A0B8-B7A18AC0713E}"
ProjectSection(ProjectDependencies) = postProject
{60F89955-91C6-3A36-8000-13C592FEC2DF} = {60F89955-91C6-3A36-8000-13C592FEC2DF}
{EB33566E-DA7F-4D28-9077-88C0B7C77E35} = {EB33566E-DA7F-4D28-9077-88C0B7C77E35}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngtest", "pngtest\pngtest.vcxproj", "{228BA965-50D5-42B2-8BCF-AFCC227E3C1D}"
ProjectSection(ProjectDependencies) = postProject
{60F89955-91C6-3A36-8000-13C592FEC2DF} = {60F89955-91C6-3A36-8000-13C592FEC2DF}
{EB33566E-DA7F-4D28-9077-88C0B7C77E35} = {EB33566E-DA7F-4D28-9077-88C0B7C77E35}
{D6973076-9317-4EF2-A0B8-B7A18AC0713E} = {D6973076-9317-4EF2-A0B8-B7A18AC0713E}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngvalid", "pngvalid\pngvalid.vcxproj", "{9B36B6FE-7FC0-434F-A71F-BBEF8099F1D8}"
ProjectSection(ProjectDependencies) = postProject
{60F89955-91C6-3A36-8000-13C592FEC2DF} = {60F89955-91C6-3A36-8000-13C592FEC2DF}
{EB33566E-DA7F-4D28-9077-88C0B7C77E35} = {EB33566E-DA7F-4D28-9077-88C0B7C77E35}
{D6973076-9317-4EF2-A0B8-B7A18AC0713E} = {D6973076-9317-4EF2-A0B8-B7A18AC0713E}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngstest", "pngstest\pngstest.vcxproj", "{277AC57F-313B-4D06-B119-A3CDB672D2FF}"
ProjectSection(ProjectDependencies) = postProject
{60F89955-91C6-3A36-8000-13C592FEC2DF} = {60F89955-91C6-3A36-8000-13C592FEC2DF}
{EB33566E-DA7F-4D28-9077-88C0B7C77E35} = {EB33566E-DA7F-4D28-9077-88C0B7C77E35}
{D6973076-9317-4EF2-A0B8-B7A18AC0713E} = {D6973076-9317-4EF2-A0B8-B7A18AC0713E}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pngunknown", "pngunknown\pngunknown.vcxproj", "{C5D3156C-8C8C-4936-B35F-2B829BA36FEC}"
ProjectSection(ProjectDependencies) = postProject
{60F89955-91C6-3A36-8000-13C592FEC2DF} = {60F89955-91C6-3A36-8000-13C592FEC2DF}
{EB33566E-DA7F-4D28-9077-88C0B7C77E35} = {EB33566E-DA7F-4D28-9077-88C0B7C77E35}
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EndProjectSection
EndProject
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Debug|Win32 = Debug|Win32
Release Library|Win32 = Release Library|Win32
Release|Win32 = Release|Win32
EndGlobalSection
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EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

45
3rdparty/libpng/projects/vstudio/zlib.props vendored
View File

@ -1,45 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
* zlib.props - location of zlib source
*
* libpng version 1.6.17 - March 26, 2015
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
* You must edit this file to record the location of the zlib
* source code.
-->
<Project ToolsVersion="4.0"
xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup Label="Globals">
<!-- Place the name of the directory containing the source of zlib used for
debugging in this property.
The directory need only contain the '.c' and '.h' files from the
source.
If you use a relative directory name (as below) then it must be
relative to the project directories; these are one level deeper than
the directories containing this file.
If the version of zlib you use does not match that used when the
distribution was built you will get warnings from pngtest that the zlib
versions do not match. The zlib version used in this build is recorded
below:
-->
<ZLibSrcDir>..\..\..\..\zlib-1.2.8</ZLibSrcDir>
<!-- The following line allows compilation for an ARM target with Visual
Studio 2012. Notice that this is not supported by the Visual Studio
2012 IDE and that the programs that result cannot be run unless they
signed by Microsoft. This is therefore untested; only Microsoft can
test it:
-->
<WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
</PropertyGroup>
</Project>

165
3rdparty/libpng/projects/vstudio/zlib/zlib.vcxproj vendored
View File

@ -1,165 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug Library|Win32">
<Configuration>Debug Library</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release Library|Win32">
<Configuration>Release Library</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
</ItemGroup>
<ItemGroup>
<ClCompile Include="$(ZLibSrcDir)\adler32.c" />
<ClCompile Include="$(ZLibSrcDir)\compress.c" />
<ClCompile Include="$(ZLibSrcDir)\crc32.c" />
<ClCompile Include="$(ZLibSrcDir)\deflate.c" />
<ClCompile Include="$(ZLibSrcDir)\infback.c" />
<ClCompile Include="$(ZLibSrcDir)\inffast.c" />
<ClCompile Include="$(ZLibSrcDir)\inflate.c" />
<ClCompile Include="$(ZLibSrcDir)\inftrees.c" />
<ClCompile Include="$(ZLibSrcDir)\trees.c" />
<ClCompile Include="$(ZLibSrcDir)\uncompr.c" />
<ClCompile Include="$(ZLibSrcDir)\zutil.c" />
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{60F89955-91C6-3A36-8000-13C592FEC2DF}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>zlib</RootNamespace>
</PropertyGroup>
<Import Project="$(SolutionDir)\zlib.props" />
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>StaticLibrary</ConfigurationType>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'" Label="PropertySheets">
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'" Label="PropertySheets">
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug Library|Win32'">
<ClCompile>
<PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
<WarningLevel>TurnOffAllWarnings</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<Optimization>Disabled</Optimization>
<BrowseInformation>true</BrowseInformation>
<FunctionLevelLinking>true</FunctionLevelLinking>
</ClCompile>
<Link>
<TargetMachine>MachineX86</TargetMachine>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<WarningLevel>TurnOffAllWarnings</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<Optimization>Disabled</Optimization>
<BrowseInformation>true</BrowseInformation>
<FunctionLevelLinking>true</FunctionLevelLinking>
<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
</ClCompile>
<Link>
<TargetMachine>MachineX86</TargetMachine>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release Library|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<Optimization>Full</Optimization>
<IntrinsicFunctions>true</IntrinsicFunctions>
<WholeProgramOptimization>true</WholeProgramOptimization>
<BufferSecurityCheck>false</BufferSecurityCheck>
<BrowseInformation>true</BrowseInformation>
<FunctionLevelLinking>true</FunctionLevelLinking>
<TreatWarningAsError>true</TreatWarningAsError>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
<Link>
<TargetMachine>MachineX86</TargetMachine>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
</Link>
<Lib>
<LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
</Lib>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
<Optimization>Full</Optimization>
<IntrinsicFunctions>true</IntrinsicFunctions>
<WholeProgramOptimization>true</WholeProgramOptimization>
<BufferSecurityCheck>false</BufferSecurityCheck>
<BrowseInformation>true</BrowseInformation>
<FunctionLevelLinking>true</FunctionLevelLinking>
<TreatWarningAsError>true</TreatWarningAsError>
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;Z_SOLO;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
<Link>
<TargetMachine>MachineX86</TargetMachine>
<GenerateDebugInformation>true</GenerateDebugInformation>
<SubSystem>Windows</SubSystem>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
</Link>
<Lib>
<LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
</Lib>
</ItemDefinitionGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>

84
3rdparty/libpng/scripts/README.txt vendored
View File

@ -1,84 +0,0 @@
Makefiles for libpng version 1.6.17 - March 26, 2015
pnglibconf.h.prebuilt => Stores configuration settings
makefile.linux => Linux/ELF makefile
(gcc, creates libpng16.so.16.1.6.17)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
ftp://ftp.cs.wisc.edu/ghost)
makefile.acorn => Acorn makefile
makefile.aix => AIX/gcc makefile
makefile.amiga => Amiga makefile
makefile.atari => Atari makefile
makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode)
makefile.beos => beos makefile
makefile.bor => Borland makefile (uses bcc)
makefile.cegcc => minge32ce for Windows CE makefile
makefile.darwin => Darwin makefile, can use on MacosX
makefile.dec => DEC Alpha UNIX makefile
makefile.dj2 => DJGPP 2 makefile
makefile.freebsd => FreeBSD makefile
makefile.gcc => Generic gcc makefile
makefile.hpgcc => HPUX makefile using gcc
makefile.hpux => HPUX (10.20 and 11.00) makefile
makefile.hp64 => HPUX (10.20 and 11.00) makefile, 64-bit
makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
makefile.intel => Intel C/C++ version 4.0 and later
makefile.mips => MIPS makefile
makefile.msc => Microsoft C makefile
makefile.netbsd => NetBSD/cc makefile, makes libpng.so.
makefile.openbsd => OpenBSD makefile
makefile.os2 => OS/2 Makefile (gcc and emx, requires libpng.def)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.sggcc => Silicon Graphics (gcc,
creates libpng16.so.16.1.6.17)
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.solaris => Solaris 2.X makefile (gcc,
creates libpng16.so.16.1.6.17)
makefile.so9 => Solaris 9 makefile (gcc,
creates libpng16.so.16.1.6.17)
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.sunos => Sun makefile
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.tc3 => Turbo C 3.0 makefile
makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later
makevms.com => VMS build script
smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
(Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
Other supporting scripts:
README.txt => This file
descrip.mms => VMS makefile for MMS or MMK
libpng-config-body.in => used by several makefiles to create libpng-config
libpng-config-head.in => used by several makefiles to create libpng-config
libpng.pc.in => Used by several makefiles to create libpng.pc
pngwin.rc => Used by the visualc71 project.
pngwin.def => Used by makefile.os2
pngwin.dfn => Used to maintain pngwin.def
SCOPTIONS.ppc => Used with smakefile.ppc
checksym.awk => Used for maintaining pnglibconf.h
def.dfn => Used for maintaining pnglibconf.h
options.awk => Used for maintaining pnglibconf.h
pnglibconf.dfa => Used for maintaining pnglibconf.h
pnglibconf.mak => Used for maintaining pnglibconf.h
sym.dfn => Used for symbol versioning
symbols.def => Used for symbol versioning
symbols.dfn => Used for symbol versioning
vers.dfn => Used for symbol versioning
libtool.m4 => Used by autoconf tools
ltoptions.m4 => Used by autoconf tools
ltsugar.m4 => Used by autoconf tools
ltversion.m4 => Used by autoconf tools
lt~obsolete.m4 => Used by autoconf tools
intprefix.dfn => Used by autoconf tools
macro.lst => Used by autoconf tools
prefix.dfn => Used by autoconf tools
Further information can be found in comments in the individual makefiles.

7
3rdparty/libpng/scripts/SCOPTIONS.ppc vendored
View File

@ -1,7 +0,0 @@
OPTIMIZE
OPTPEEP
OPTTIME
OPTSCHED
AUTOREGISTER
PARMS=REGISTERS
INCLUDEDIR=hlp:ppc/include

173
3rdparty/libpng/scripts/checksym.awk vendored
View File

@ -1,173 +0,0 @@
#!/bin/awk -f
# Check a list of symbols against the master definition
# (official) list. Arguments:
#
# awk -f checksym.awk official-def list-to-check
#
# Output is a file in the current directory called 'symbols.new',
# the value of the awk variable "of" (which can be changed on the
# command line if required.) stdout holds error messages. Error
# code indicates success or failure.
#
# NOTE: this is a pure, old fashioned, awk script. It will
# work with any awk
BEGIN{
err=0
master="" # master file
official[1] = "" # defined symbols from master file
symbol[1] = "" # defined symbols from png.h
removed[1] = "" # removed symbols from png.h
lasto = 0 # last ordinal value from png.h
mastero = 0 # highest ordinal in master file
symbolo = 0 # highest ordinal in png.h
missing = "error"# log an error on missing symbols
of="symbols.new" # default to a fixed name
}
# Read existing definitions from the master file (the first
# file on the command line.) This must be a def file and it
# has definition lines (others are ignored) of the form:
#
# symbol @ordinal
#
master == "" {
master = FILENAME
}
FILENAME==master && NF==2 && $2~/^@/ && $1!~/^;/ {
o=0+substr($2,2)
if (o > 0) {
if (official[o] == "") {
official[o] = $1
if (o > mastero) mastero = o
next
} else
print master ": duplicated symbol:", official[o] ":", $0
} else
print master ": bad export line format:", $0
err = 1
}
FILENAME==master && $1==";missing" && NF==2{
# This allows the master file to control how missing symbols
# are handled; symbols that aren't in either the master or
# the new file. Valid values are 'ignore', 'warning' and
# 'error'
missing = $2
}
FILENAME==master {
next
}
# Read new definitions, these are free form but the lines must
# just be symbol definitions. Lines will be commented out for
# 'removed' symbols, introduced in png.h using PNG_REMOVED rather
# than PNG_EXPORT. Use symbols.dfn or pngwin.dfn to generate the
# input file.
#
# symbol @ordinal # two fields, exported symbol
# ; symbol @ordinal # three fields, removed symbol
# ; @ordinal # two fields, the last ordinal
NF==2 && $1 == ";" && $2 ~ /^@[1-9][0-9]*$/ { # last ordinal
o=0+substr($2,2)
if (lasto == 0 || lasto == o)
lasto=o
else {
print "png.h: duplicated last ordinal:", lasto, o
err = 1
}
next
}
NF==3 && $1 == ";" && $3 ~ /^@[1-9][0-9]*$/ { # removed symbol
o=0+substr($3,2)
if (removed[o] == "" || removed[o] == $2) {
removed[o] = $2
if (o > symbolo) symbolo = o
} else {
print "png.h: duplicated removed symbol", o ": '" removed[o] "' != '" $2 "'"
err = 1
}
next
}
NF==2 && $2 ~ /^@[1-9][0-9]*$/ { # exported symbol
o=0+substr($2,2)
if (symbol[o] == "" || symbol[o] == $1) {
symbol[o] = $1
if (o > symbolo) symbolo = o
} else {
print "png.h: duplicated symbol", o ": '" symbol[o] "' != '" $1 "'"
err = 1
}
}
{
next # skip all other lines
}
# At the end check for symbols marked as both duplicated and removed
END{
if (symbolo > lasto) {
print "highest symbol ordinal in png.h,", symbolo ", exceeds last ordinal from png.h", lasto
err = 1
}
if (mastero > lasto) {
print "highest symbol ordinal in", master ",", mastero ", exceeds last ordinal from png.h", lasto
err = 1
}
unexported=0
# Add a standard header to symbols.new:
print ";Version INSERT-VERSION-HERE" >of
print ";--------------------------------------------------------------" >of
print "; LIBPNG symbol list as a Win32 DEF file" >of
print "; Contains all the symbols that can be exported from libpng" >of
print ";--------------------------------------------------------------" >of
print "LIBRARY" >of
print "" >of
print "EXPORTS" >of
for (o=1; o<=lasto; ++o) {
if (symbol[o] == "" && removed[o] == "") {
if (unexported == 0) unexported = o
if (official[o] == "") {
# missing in export list too, so ok
if (o < lasto) continue
}
}
if (unexported != 0) {
# Symbols in the .def but not in the new file are errors, but
# the 'unexported' symbols aren't in either. By default this
# is an error too (see the setting of 'missing' at the start),
# but this can be reset on the command line or by stuff in the
# file - see the comments above.
if (missing != "ignore") {
if (o-1 > unexported)
print "png.h:", missing ": missing symbols:", unexported "-" o-1
else
print "png.h:", missing ": missing symbol:", unexported
if (missing != "warning")
err = 1
}
unexported = 0
}
if (symbol[o] != "" && removed[o] != "") {
print "png.h: symbol", o, "both exported as '" symbol[o] "' and removed as '" removed[o] "'"
err = 1
} else if (symbol[o] != official[o]) {
# either the symbol is missing somewhere or it changed
err = 1
if (symbol[o] == "")
print "png.h: symbol", o, "is exported as '" official[o] "' in", master
else if (official[o] == "")
print "png.h: exported symbol", o, "'" symbol[o] "' not present in", master
else
print "png.h: exported symbol", o, "'" symbol[o] "' exists as '" official[o] "' in", master
}
# Finally generate symbols.new
if (symbol[o] != "")
print " " symbol[o], "@" o > of
}
if (err != 0) {
print "*** A new list is in", of, "***"
exit 1
}
}

29
3rdparty/libpng/scripts/def.c vendored
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@ -1,29 +0,0 @@
/* def.c - define format of libpng.def
*
* Last changed in libpng version 1.6.16 [December 22, 2014]
* Copyright (c) 2011-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
/* Write the export file header: */
PNG_DFN ";--------------------------------------------------------------"
PNG_DFN "; LIBPNG module definition file for OS/2"
PNG_DFN ";--------------------------------------------------------------"
PNG_DFN ""
PNG_DFN "; If you give the library an explicit name one or other files"
PNG_DFN "; may need modifying to support the new name on one or more"
PNG_DFN "; systems."
PNG_DFN "LIBRARY"
PNG_DFN "OS2 DESCRIPTION "PNG image compression library""
PNG_DFN "OS2 CODE PRELOAD MOVEABLE DISCARDABLE"
PNG_DFN ""
PNG_DFN "EXPORTS"
PNG_DFN ";Version 1.6.17"
#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
PNG_DFN "@" SYMBOL_PREFIX "@@" name "@"
#include "../png.h"

52
3rdparty/libpng/scripts/descrip.mms vendored
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@ -1,52 +0,0 @@
cc_defs = /inc=$(ZLIBSRC)
c_deb =
.ifdef __DECC__
pref = /prefix=all
.endif
OBJS = png.obj, pngset.obj, pngget.obj, pngrutil.obj, pngtrans.obj,\
pngwutil.obj, pngread.obj, pngmem.obj, pngwrite.obj, pngrtran.obj,\
pngwtran.obj, pngrio.obj, pngwio.obj, pngerror.obj, pngpread.obj
CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
all : pngtest.exe libpng.olb
@ write sys$output " pngtest available"
libpng.olb : libpng.olb($(OBJS))
@ write sys$output " Libpng available"
pngtest.exe : pngtest.obj libpng.olb
link pngtest,libpng.olb/lib,$(ZLIBSRC)libz.olb/lib
test : pngtest.exe
run pngtest
clean :
delete *.obj;*,*.exe;
# Other dependencies.
png.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngpread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngset.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngget.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngread.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngrtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngrutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngerror.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngmem.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngrio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngwio.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngtrans.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngwrite.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngwtran.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngwutil.obj : png.h, pngconf.h, pnglibconf.h, pngpriv.h, pngstruct.h,pnginfo.h, pngdebug.h
pngtest.obj : png.h, pngconf.h, pnglibconf.h

203
3rdparty/libpng/scripts/dfn.awk vendored
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@ -1,203 +0,0 @@
#!/bin/awk -f
# scripts/dfn.awk - process a .dfn file
#
# last changed in libpng version 1.5.19 - August 21, 2014
#
# Copyright (c) 2013-2014 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# The output of this script is written to the file given by
# the variable 'out', which should be set on the command line.
# Error messages are printed to stdout and if any are printed
# the script will exit with error code 1.
BEGIN{
out="/dev/null" # as a flag
out_count=0 # count of output lines
err=0 # set if an error occurred
sort=0 # sort the output
array[""]=""
}
# The output file must be specified before any input:
NR==1 && out == "/dev/null" {
print "out=output.file must be given on the command line"
# but continue without setting the error code; this allows the
# script to be checked easily
}
# Output can be sorted; two lines are recognized
$1 == "PNG_DFN_START_SORT"{
sort=0+$2
next
}
$1 ~ /^PNG_DFN_END_SORT/{
# Do a very simple, slow, sort; notice that blank lines won't be
# output by this
for (entry in array) {
while (array[entry] != "") {
key = entry
value = array[key]
array[key] = ""
for (alt in array) {
if (array[alt] != "" && alt < key) {
array[key] = value
value = array[alt]
key = alt
array[alt] = ""
}
}
print value >out
}
}
sort=0
next
}
/^[^"]*PNG_DFN *".*"[^"]*$/{
# A definition line, apparently correctly formatted; extract the
# definition then replace any doubled "" that remain with a single
# double quote. Notice that the original doubled double quotes
# may have been split by tokenization
#
# Sometimes GCC splits the PNG_DFN lines; we know this has happened
# if the quotes aren't closed and must read another line. In this
# case it is essential to reject lines that start with '#' because those
# are introduced #line directives.
orig=$0
line=$0
lineno=FNR
if (lineno == "") lineno=NR
if (sub(/^[^"]*PNG_DFN *"/,"",line) != 1) {
print "line", lineno ": processing failed:"
print orig
err=1
next
} else {
++out_count
}
# Now examine quotes within the value:
#
# @" - delete this and any following spaces
# "@ - delete this and any preceding spaces
# @' - replace this by a double quote
#
# This allows macro substitution by the C compiler thus:
#
# #define first_name John
# #define last_name Smith
#
# PNG_DFN"#define name @'@" first_name "@ @" last_name "@@'"
#
# Might get C preprocessed to:
#
# PNG_DFN "#define foo @'@" John "@ @" Smith "@@'"
#
# Which this script reduces to:
#
# #define name "John Smith"
#
while (1) {
# While there is an @" remove it and the next "@
if (line ~ /@"/) {
if (line ~ /@".*"@/) {
# Do this special case first to avoid swallowing extra spaces
# before or after the @ stuff:
if (!sub(/@" *"@/, "", line)) {
# Ok, do it in pieces - there has to be a non-space between the
# two. NOTE: really weird things happen if a leading @" is
# lost - the code will error out below (I believe).
if (!sub(/@" */, "", line) || !sub(/ *"@/, "", line)) {
print "line", lineno, ": internal error:", orig
exit 1
}
}
}
# There is no matching "@. Assume a split line
else while (1) {
if (getline nextline) {
# If the line starts with '#' it is a preprocesor line directive
# from cc -E; skip it:
if (nextline !~ /^#/) {
line = line " " nextline
break
}
} else {
# This is end-of-input - probably a missing "@ on the first line:
print "line", lineno ": unbalanced @\" ... \"@ pair"
err=1
next
}
}
# Keep going until all the @" have gone
continue
}
# Attempt to remove a trailing " (not preceded by '@') - if this can
# be done, stop now; if not assume a split line again
if (sub(/"[^"]*$/, "", line))
break
# Read another line
while (1) {
if (getline nextline) {
if (nextline !~ /^#/) {
line = line " " nextline
# Go back to stripping @" "@ pairs
break
}
} else {
print "line", lineno ": unterminated PNG_DFN string"
err=1
next
}
}
}
# Put any needed double quotes in (at the end, because these would otherwise
# interfere with the processing above.)
gsub(/@'/,"\"", line)
# Remove any trailing spaces (not really required, but for
# editorial consistency
sub(/ *$/, "", line)
# Remove trailing CR
sub(/ $/, "", line)
if (sort) {
if (split(line, parts) < sort) {
print "line", lineno ": missing sort field:", line
err=1
} else
array[parts[sort]] = line
}
else
print line >out
next
}
/PNG_DFN/{
print "line", NR, "incorrectly formatted PNG_DFN line:"
print $0
err = 1
}
END{
if (out_count > 0 || err > 0)
exit err
print "no definition lines found"
exit 1
}

22
3rdparty/libpng/scripts/intprefix.c vendored
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@ -1,22 +0,0 @@
/* intprefix.c - generate an unprefixed internal symbol list
*
* Last changed in libpng version 1.6.16 [December 22, 2014]
* Copyright (c) 2013-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
#define PNG_INTERNAL_DATA(type, name, array)\
PNG_DFN "@" name "@"
#define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\
PNG_DFN "@" name "@"
#define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
PNG_DFN "@" name "@"
#define PNGPREFIX_H /* self generation */
#include "../pngpriv.h"

96
3rdparty/libpng/scripts/libpng-config-body.in vendored
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@ -1,96 +0,0 @@
usage()
{
cat <<EOF
Usage: libpng-config [OPTION] ...
Known values for OPTION are:
--prefix print libpng prefix
--libdir print path to directory containing library
--libs print library linking information
--ccopts print compiler options
--cppflags print pre-processor flags
--cflags print preprocessor flags, I_opts, and compiler options
--I_opts print "-I" include options
--L_opts print linker "-L" flags for dynamic linking
--R_opts print dynamic linker "-R" or "-rpath" flags
--ldopts print linker options
--ldflags print linker flags (ldopts, L_opts, R_opts, and libs)
--static revise subsequent outputs for static linking
--help print this help and exit
--version print version information
EOF
exit $1
}
if test $# -eq 0; then
usage 1
fi
while test $# -gt 0; do
case "$1" in
--prefix)
echo ${prefix}
;;
--version)
echo ${version}
exit 0
;;
--help)
usage 0
;;
--ccopts)
echo ${ccopts}
;;
--cppflags)
echo ${cppflags}
;;
--cflags)
echo ${I_opts} ${cppflags} ${ccopts}
;;
--libdir)
echo ${libdir}
;;
--libs)
echo ${libs}
;;
--I_opts)
echo ${I_opts}
;;
--L_opts)
echo ${L_opts}
;;
--R_opts)
echo ${R_opts}
;;
--ldflags)
echo ${ldflags} ${L_opts} ${R_opts} ${libs}
;;
--static)
R_opts=""
;;
*)
usage
exit 1
;;
esac
shift
done
exit 0

24
3rdparty/libpng/scripts/libpng-config-head.in vendored
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@ -1,24 +0,0 @@
#! /bin/sh
# libpng-config
# provides configuration info for libpng.
# Copyright (C) 2002 Glenn Randers-Pehrson
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Modeled after libxml-config.
version=1.6.17
prefix=""
libdir=""
libs=""
I_opts=""
L_opts=""
R_opts=""
cppflags=""
ccopts=""
ldopts=""

10
3rdparty/libpng/scripts/libpng.pc.in vendored
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@ -1,10 +0,0 @@
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@/libpng16
Name: libpng
Description: Loads and saves PNG files
Version: 1.6.17
Libs: -L${libdir} -lpng16
Cflags: -I${includedir}

3
3rdparty/libpng/scripts/macro.lst vendored
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@ -1,3 +0,0 @@
get_uint_32(buf)
get_uint_16(buf)
get_int_32(buf)

244
3rdparty/libpng/scripts/makefile.32sunu vendored
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@ -1,244 +0,0 @@
# makefile for libpng on Solaris 2.x with cc
# Contributed by William L. Sebok, based on makefile.linux
# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Library name:
LIBNAME=libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).so
LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.so
# Utilities:
CC=cc
AR_RC=ar rc
MKDIR_P=mkdir -p
LN_SF=ln -f -s
RANLIB=echo
RM_F=/bin/rm -f
SUN_CC_FLAGS=-fast -xtarget=ultra
SUN_LD_FLAGS=-fast -xtarget=ultra
# where make install puts libpng.a, libpng16.so and libpng16/png.h
prefix=/a
exec_prefix=$(prefix)
# Where the zlib library and include files are located
# Changing these to ../zlib poses a security risk. If you want
# to have zlib in an adjacent directory, specify the full path instead of "..".
#ZLIBLIB=../zlib
#ZLIBINC=../zlib
ZLIBLIB=/usr/lib
ZLIBINC=/usr/include
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS=$(SUN_CC_FLAGS) # $(WARNMORE) -g
LDFLAGS=$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) libpng.a -lz -lm
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
.c.pic.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
include scripts/pnglibconf.mak
DELETE = $(RM_F)
DFNFLAGS = $(DEFS) $(CPPFLAGS)
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo libdir=\"$(LIBPATH)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo R_opts=\"-R$(LIBPATH)\"; \
echo ccopts=\"-fast -xtarget=ultra\"; \
echo ldopts=\"-fast -xtarget=ultra\"; \
echo libs=\"-lpng16 -lz -lm\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJSDLL)
@case "`type ld`" in *ucb*) \
echo; \
echo '## WARNING:'; \
echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
echo '## at all. If it is, things are likely to break because of'; \
echo '## the libucb dependency that is created.'; \
echo; \
;; \
esac
$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
-o $(LIBSOMAJ) $(OBJSDLL)
pngtest: pngtest.o $(LIBSO)
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) $(SUN_CC_FLAGS) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
./pngtestd pngtest.png
test-installed:
echo
echo Testing installed dynamic shared library.
$(CC) $(SUN_CC_FLAGS) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

244
3rdparty/libpng/scripts/makefile.64sunu vendored
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@ -1,244 +0,0 @@
# makefile for libpng on Solaris 2.x with cc
# Contributed by William L. Sebok, based on makefile.linux
# Copyright (C) 2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Library name:
LIBNAME=libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).so
LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.so
# Utilities:
CC=cc
AR_RC=ar rc
MKDIR_P=mkdir -p
LN_SF=ln -f -s
RANLIB=echo
RM_F=/bin/rm -f
SUN_CC_FLAGS=-fast -xtarget=ultra -xarch=v9
SUN_LD_FLAGS=-fast -xtarget=ultra -xarch=v9
# where make install puts libpng.a, libpng16.so and libpng16/png.h
prefix=/a
exec_prefix=$(prefix)
# Where the zlib library and include files are located
# Changing these to ../zlib poses a security risk. If you want
# to have zlib in an adjacent directory, specify the full path instead of "..".
#ZLIBLIB=../zlib
#ZLIBINC=../zlib
ZLIBLIB=/usr/lib
ZLIBINC=/usr/include
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS= $(SUN_CC_FLAGS) # $(WARNMORE) -g
LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng16 -lz -lm
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
.c.pic.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -KPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
include scripts/pnglibconf.mak
DELETE = $(RM_F)
DFNFLAGS = $(DEFS) $(CPPFLAGS)
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo libdir=\"$(LIBPATH)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo R_opts=\"-R$(LIBPATH)\"; \
echo ccopts=\"-fast -xtarget=ultra -xarch=v9\"; \
echo ldopts=\"-fast -xtarget=ultra -xarch=v9\"; \
echo libs=\"-lpng16 -lz -lm\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJSDLL)
@case "`type ld`" in *ucb*) \
echo; \
echo '## WARNING:'; \
echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
echo '## at all. If it is, things are likely to break because of'; \
echo '## the libucb dependency that is created.'; \
echo; \
;; \
esac
$(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBSOMAJ) \
-o $(LIBSOMAJ) $(OBJSDLL)
pngtest: pngtest.o $(LIBSO)
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) $(SUN_CC_FLAGS) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtestd -L$(DL) -R$(DL) `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
./pngtestd pngtest.png
test-installed:
echo
echo Testing installed dynamic shared library.
$(CC) $(SUN_CC_FLAGS) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
$(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

57
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@ -1,57 +0,0 @@
# Project: libpng
# Toolflags:
CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback -DRISCOS -fnah
C++flags = -c -depend !Depend -IC: -throwback
Linkflags = -aif -c++ -o $@
ObjAsmflags = -throwback -NoCache -depend !Depend
CMHGflags =
LibFileflags = -c -l -o $@
Squeezeflags = -o $@
# Final targets:
@.libpng-lib: @.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
@.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
LibFile $(LibFileflags) @.o.png @.o.pngerror @.o.pngrio @.o.pngrtran \
@.o.pngmem @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngwio \
@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
@.mm-libpng-lib: @.mm.png @.mm.pngerror @.mm.pngrio @.mm.pngwio @.mm.pngmem \
@.mm.pngpread @.mm.pngset @.mm.pngget @.mm.pngread @.mm.pngrtran \
@.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil
LibFile $(LibFileflags) @.mm.png @.mm.pngerror @.mm.pngrio \
@.mm.pngwio @.mm.pngmem @.mm.pngpread @.mm.pngset @.mm.pngget \
@.mm.pngread @.mm.pngrtran @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite \
@.mm.pngwtran @.mm.pngwutil
# User-editable dependencies:
# (C) Copyright 1997 Tom Tanner
Test: @.pngtest
<Prefix$Dir>.pngtest
@remove <Prefix$Dir>.pngtest
#It would be nice if you could stop "make" listing from here on!
@.pngtest: @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
.SUFFIXES: .o .mm .c
.c.mm:
MemCheck.CC cc $(ccflags) -o $@ LibPng:$<
.c.o:
cc $(ccflags) -o $@ $<
# See scripts.mak.libpngconf for how to generate this:
@.h.libpngconf: @.scripts.h.libpngconf
copy @.scripts.h.libpngconf $@
# Static dependencies:
@.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
@.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil \
@.o.pngtest: @.h.libpngconf
# Dynamic dependencies:

116
3rdparty/libpng/scripts/makefile.aix vendored
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@ -1,116 +0,0 @@
# makefile for libpng using gcc (generic, static library)
# Copyright (C) 2002, 2006-2009, 2014 Glenn Randers-Pehrson
# Copyright (C) 2000 Cosmin Truta
# Copyright (C) 2000 Marc O. Gloor (AIX support added, from makefile.gcc)
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Location of the zlib library and include files
ZLIBINC = ../zlib
ZLIBLIB = ../zlib
# Compiler, linker, lib and other tools
CC = gcc
LD = $(CC)
AR_RC = ar rcs
MKDIR_P = mkdir -p
RANLIB = ranlib
RM_F = rm -f
LN_SF = ln -f -s
LIBNAME = libpng16
PNGMAJ = 16
prefix=/usr/local
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
WARNMORE =
CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
LDFLAGS = -L. -L$(ZLIBLIB) -lpng16 -lz -lm
# Variables
OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
# Targets
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
all: $(LIBNAME).a pngtest$(E)
include scripts/pnglibconf.mak
REMOVE = $(RM_F)
DFNFLAGS = $(DEFS) $(CPPFLAGS)
$(LIBNAME).a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
test: pngtest$(E)
./pngtest$(E)
pngtest$(E): pngtest.o $(LIBNAME).a
$(LD) -o $@ pngtest.o $(LDFLAGS)
install: $(LIBNAME).a
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DI)/$(LIBNAME)/png.h
-@$(RM_F) $(DI)/$(LIBNAME)/pngconf.h
-@$(RM_F) $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h
-@$(RM_F) $(DI)/pngconf.h
-@$(RM_F) $(DI)/pnglibconf.h
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h \
$(DI)/$(LIBNAME)/pngconf.h \
$(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) -r $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
-@$(RM_F) $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
cp $(LIBNAME).a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
(cd $(DI); $(LN_SF) libpng/* .;)
clean:
$(RM_F) *.o $(LIBNAME).a pngtest pngout.png pnglibconf.h
png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

58
3rdparty/libpng/scripts/makefile.amiga vendored
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@ -1,58 +0,0 @@
# Commodore Amiga Makefile
# makefile for libpng and SAS C V6.5x compiler
# Copyright (C) 1995-2000 Wolf Faust
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
#
# Location/path of zlib include files
ZLIB=/zlib
#compiler
CC=sc
#compiler flags
# WARNING: a bug in V6.51 causes bad code with OPTGO
# So use V6.55 or set NOOPTGO!!!!!!!!!
CFLAGS= NOSTKCHK PARMS=REG OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL\
OPTLOOP OPTRDEP=4 OPTDEP=4 OPTCOMP=4 INCLUDEDIR=$(ZLIB) \
DEFINE=PNG_INTERNAL
#linker flags
LDFLAGS= SD ND BATCH
#link libs
LDLIBS= libpng.lib libgz.lib LIB:scm.lib LIB:sc.lib Lib:amiga.lib
# linker
LN= slink
# file deletion command
RM= delete quiet
# library (.lib) file creation command
AR= oml
# make directory command
MKDIR= makedir
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
all: libpng.lib pngtest
libpng.lib: $(OBJS)
-$(RM) libpng.lib
$(AR) libpng.lib r $(OBJS)
$(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
COPY $(PNGLIBCONF_H_PREBUILT) TO pnglibconf.h
pngtest: pngtest.o libpng.lib
$(LN) <WITH <
$(LDFLAGS)
TO pngtest
FROM LIB:c.o pngtest.o
LIB $(LDLIBS)
<

71
3rdparty/libpng/scripts/makefile.atari vendored
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@ -1,71 +0,0 @@
# makefile for libpng
# Copyright (C) 2002, 2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
#
# Modified for LC56/ATARI assumes libz.lib is in same dir and uses default
# rules for library management
#
CPPFLAGS = -I..\zlib
CFLAGS = -O
LBR = png.lib
LDFLAGS = -L. -L..\zlib -lpng -lz -lm
# where make install puts libpng.a and png.h
prefix=/usr/local
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = $(LBR)(png.o) $(LBR)(pngset.o) $(LBR)(pngget.o) $(LBR)(pngrutil.o)\
$(LBR)(pngtrans.o) $(LBR)(pngwutil.o)\
$(LBR)(pngread.o) $(LBR)(pngerror.o) $(LBR)(pngwrite.o)\
$(LBR)(pngrtran.o) $(LBR)(pngwtran.o)\
$(LBR)(pngmem.o) $(LBR)(pngrio.o) $(LBR)(pngwio.o) $(LBR)(pngpread.o)
all: $(LBR) pngtest.ttp
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) $<
$(LBR): $(OBJS)
$(OBJS): pngpriv.h png.h pngconf.h pnglibconf.h pnginfo.h pngstruct.h pngdebug.h
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
cp $(PNGLIBCONF_H_PREBUILT) $@
pngtest.ttp: pngtest.o $(LBR)
$(CC) $(CFLAGS) $(LDFLAGS) -o$@ pngtest.o
install: libpng.a
-@mkdir $(DESTDIR)$(INCPATH)
-@mkdir $(DESTDIR)$(INCPATH)/libpng
-@mkdir $(DESTDIR)$(LIBPATH)
-@rm -f $(DESTDIR)$(INCPATH)/png.h
-@rm -f $(DESTDIR)$(INCPATH)/pngconf.h
-@rm -f $(DESTDIR)$(INCPATH)/pnglibconf.h
cp png.h $(DESTDIR)$(INCPATH)/libpng
cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng
chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h
(cd $(DESTDIR)$(INCPATH); ln -f -s $(LIBNAME) libpng; \
ln -f -s $(LIBNAME)/* .)

158
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@ -1,158 +0,0 @@
# Makefile for libpng
# 32-bit Borland C++ (Note: All modules are compiled in C mode)
# To build the library, do:
# "make -fmakefile.bc32"
#
# -------------------- 32-bit Borland C++ --------------------
### Absolutely necessary for this makefile to work
.AUTODEPEND
## Where zlib.h, zconf.h and zlib.lib are
ZLIB_DIR=..\zlib
## Compiler, linker, librarian and other tools
CC=bcc32
LD=bcc32
LIB=tlib
CP=copy
# -3 = 386, -4 = 486, -5 = Pentium etc.
!ifndef TARGET_CPU
#TARGET_CPU=-6
!endif
# Use this if you don't want Borland's fancy exception handling
# (Caution: doesn't work with CBuilderX)
#NOEHLIB=noeh32.lib
!ifdef DEBUG
CDEBUG=-v
LDEBUG=-v
!else
CDEBUG=
LDEBUG=
!endif
# STACKOFLOW=1
!ifdef STACKOFLOW
CDEBUG=$(CDEBUG) -N
LDEBUG=$(LDEBUG) -N
!endif
# -O2 optimize for speed
# -d merge duplicate strings
# -k- turn off standard stack frame
# -w display all warnings
CPPFLAGS=-I$(ZLIB_DIR)
CFLAGS=-O2 -d -k- -w $(TARGET_CPU) $(CDEBUG)
# -M generate map file
LDFLAGS=-L$(ZLIB_DIR) -M $(LDEBUG)
# Pre-built configuration
# See scripts\pnglibconf.mak for more options
!ifndef PNGLIBCONF_H_PREBUILT
PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
!endif
## Variables
OBJS = \
png.obj \
pngerror.obj \
pngget.obj \
pngmem.obj \
pngpread.obj \
pngread.obj \
pngrio.obj \
pngrtran.obj \
pngrutil.obj \
pngset.obj \
pngtrans.obj \
pngwio.obj \
pngwrite.obj \
pngwtran.obj \
pngwutil.obj
LIBOBJS = \
+png.obj \
+pngerror.obj \
+pngget.obj \
+pngmem.obj \
+pngpread.obj \
+pngread.obj \
+pngrio.obj \
+pngrtran.obj \
+pngrutil.obj \
+pngset.obj \
+pngtrans.obj \
+pngwio.obj \
+pngwrite.obj \
+pngwtran.obj \
+pngwutil.obj
LIBNAME=libpng.lib
## Implicit rules
# Braces let make "batch" calls to the compiler,
# 2 calls instead of 12; space is important.
.c.obj:
$(CC) $(CPPFLAGS) $(CFLAGS) -c {$*.c }
.c.exe:
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $*.c \
$(LIBNAME) zlib.lib $(NOEHLIB)
.obj.exe:
$(LD) $(LDFLAGS) $*.obj $(LIBNAME) zlib.lib $(NOEHLIB)
## Major targets
all: libpng pngtest
libpng: $(LIBNAME)
pngtest: pngtest.exe
test: pngtest.exe
pngtest
## Minor Targets
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.obj: pngtest.c png.h pngconf.h pnglibconf.h
$(LIBNAME): $(OBJS)
-del $(LIBNAME)
$(LIB) $(LIBNAME) @&&|
$(LIBOBJS), libpng
|
# Cleanup
clean:
-del pnglibconf.h
-del *.obj
-del $(LIBNAME)
-del pngtest.exe
-del *.lst
-del *.map
-del *.tds
-del pngout.png
# End of makefile for libpng

222
3rdparty/libpng/scripts/makefile.beos vendored
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@ -1,222 +0,0 @@
# makefile for libpng on BeOS x86 ELF with gcc
# modified from makefile.linux by Sander Stoks
# Copyright (C) 2002, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1999 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Library name:
LIBNAME=libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).so
LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.so
# Utilities:
CC=gcc
AR_RC=ar rc
MKDIR_P=mkdir -p
LN_SF=ln -sf
RANLIB=ranlib
CP=cp
RM_F=/bin/rm -f
# Where the zlib library and include files are located
ZLIBLIB=/usr/local/lib
ZLIBINC=/usr/local/include
ALIGN=
# For i386:
# ALIGN=-malign-loops=2 -malign-functions=2
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
# On BeOS, -O1 is actually better than -O3. This is a known bug but it's
# still here in R4.5
CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS=-W -Wall -O1 -funroll-loops $(ALIGN) # $(WARNMORE) -g
# LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz
LDFLAGS=-L. -Wl,-soname=$(LIBSOMAJ) -L$(ZLIBLIB) -lz
# where make install puts libpng.a, libpng16.so*, and png.h
prefix=/usr/local
exec_prefix=$(prefix)
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS)
.SUFFIXES: .c .o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo libs=\"-lpng16 -lz \"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
cp $(LIBSO)* /boot/home/config/lib
$(LIBSOMAJ): $(OBJSDLL)
$(CC) -nostart -Wl,-soname,$(LIBSOMAJ) -o \
$(LIBSOMAJ) $(OBJSDLL) $(LDFLAGS)
pngtest: pngtest.o $(LIBSO)
$(CC) -L$(ZLIBLIB) -L. -lz -lpng16 -o pngtest pngtest.o
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) -I$(DI) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -Wl,-rpath $(ZLIBLIB):$(DL) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
$(CC) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
$(LIBSO) $(LIBSOMAJ)* pngtesti \
pnglibconf.h libpng.pc
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

170
3rdparty/libpng/scripts/makefile.bor vendored
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@ -1,170 +0,0 @@
# Makefile for libpng
# 16-bit Borland C++ (Note: All modules are compiled in C mode)
# To build the library, do:
# "make -fmakefile.bor -DMODEL=c"
# or: "make -fmakefile.bor -DMODEL=l"
#
# ------------ Borland C++ ------------
### Absolutely necessary for this makefile to work
.AUTODEPEND
## Where zlib.h, zconf.h and zlib_MODEL.lib are
ZLIB_DIR=..\zlib
## Compiler, linker, librarian and other tools
CC=bcc
LD=bcc
LIB=tlib
CP=copy
!ifndef MODEL
MODEL=l
!endif
MODEL_ARG=-m$(MODEL)
#TARGET_CPU=3
# 2 = 286, 3 = 386, etc.
!ifndef TARGET_CPU
TARGET_CPU=2
!endif
# Use this if you don't want Borland's fancy exception handling
# (for Borland C++ 4.0 or later)
#NOEHLIB=noeh$(MODEL).lib
!ifdef DEBUG
CDEBUG=-v
LDEBUG=-v
!else
CDEBUG=
LDEBUG=
!endif
# STACKOFLOW=1
!ifdef STACKOFLOW
CDEBUG=$(CDEBUG) -N
LDEBUG=$(LDEBUG) -N
!endif
# -X- turn on dependency generation in the object file
# -w set all warnings on
# -O2 optimize for speed
# -Z global optimization
CPPFLAGS=-I$(ZLIB_DIR)
CFLAGS=-O2 -Z -X- -w -$(TARGET_CPU) $(MODEL_ARG) $(CDEBUG)
# -M generate map file
LDFLAGS=-M -L$(ZLIB_DIR) $(MODEL_ARG) $(LDEBUG)
# Pre-built configuration
# See scripts\pnglibconf.mak for more options
!ifndef PNGLIBCONF_H_PREBUILT
PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
!endif
## Variables
OBJS = \
png.obj \
pngerror.obj \
pngget.obj \
pngmem.obj \
pngpread.obj \
pngread.obj \
pngrio.obj \
pngrtran.obj \
pngrutil.obj \
pngset.obj \
pngtrans.obj \
pngwio.obj \
pngwrite.obj \
pngwtran.obj \
pngwutil.obj
LIBOBJS = \
+png.obj \
+pngerror.obj \
+pngget.obj \
+pngmem.obj \
+pngpread.obj \
+pngread.obj \
+pngrio.obj \
+pngrtran.obj \
+pngrutil.obj \
+pngset.obj \
+pngtrans.obj \
+pngwio.obj \
+pngwrite.obj \
+pngwtran.obj \
+pngwutil.obj
LIBNAME=libpng$(MODEL).lib
## Implicit rules
# Braces let make "batch" calls to the compiler,
# 2 calls instead of 12; space is important.
.c.obj:
$(CC) $(CPPFLAGS) $(CFLAGS) -c {$*.c }
.c.exe:
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $*.c \
$(LIBNAME) zlib_$(MODEL).lib $(NOEHLIB)
## Major targets
all: libpng pngtest
# try !include scripts\pnglibconf.mak for more options
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng: $(LIBNAME)
pngtest: pngtest$(MODEL).exe
test: pngtest$(MODEL).exe
pngtest$(MODEL)
## Minor Targets
png.obj: png.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.obj: pngerror.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.obj: pngget.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.obj: pngmem.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.obj: pngpread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.obj: pngread.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.obj: pngrio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.obj: pngrtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.obj: pngrutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.obj: pngset.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.obj: pngtrans.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.obj: pngwio.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.obj: pngwrite.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.obj: pngwtran.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.obj: pngwutil.c png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
$(LIBNAME): $(OBJS)
-del $(LIBNAME)
$(LIB) $(LIBNAME) @&&|
$(LIBOBJS), libpng$(MODEL)
|
pngtest$(MODEL).obj: pngtest.c png.h pngconf.h pnglibconf.h
$(CC) $(CFLAGS) -opngtest$(MODEL) -c pngtest.c
pngtest$(MODEL).exe: pngtest$(MODEL).obj
$(LD) $(LDFLAGS) pngtest$(MODEL).obj $(LIBNAME) zlib_$(MODEL).lib $(NOEHLIB)
# Clean up anything else you want
clean:
-del pnglibconf.h
-del *.obj
-del *.exe
-del *.lib
-del *.lst
-del *.map
# End of makefile for libpng

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@ -1,116 +0,0 @@
# Makefile for creating Windows CE release archives, with the
# mingw32ce compiler.
# Last updated: 22-Jul-2008
# Copyright (C) 2008 Vincent Torri
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# To get some help, type
#
# make help
#
# To create the archives
#
# make
#
# To remove everything, type:
#
# make clean
VERMAJ = 1
VERMIN = 6
VERMIC = 17
VER = $(VERMAJ).$(VERMIN).$(VERMIC)
NAME = libpng
PACKAGE = $(NAME)-$(VER)
BIN = libpng16-0.dll
LIB = libpng16.a libpng16.dll.a libpng.a libpng.dll.a
INCLUDE = png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
PC = libpng16.pc libpng.pc
MANIFESTVERBIN = "Libpng-$(VER): Binary files"
MANIFESTVERDEV = "Libpng-$(VER): Developer files"
MANIFESTVERDESC = "Libpng: the official PNG reference library"
all: $(NAME)
$(NAME): remove-old copy-src compilation copy manifest archive
@echo " * Removal of the directories"
@rm -rf $(PACKAGE)/ $(PACKAGE)-bin/ $(PACKAGE)-dev/
remove-old:
@echo " * Removal of the old files"
@rm -rf $(PACKAGE)-bin*
@rm -rf $(PACKAGE)-dev*
copy-src:
@echo " * Copy of source files"
@cp -R ../src/$(PACKAGE) .
@echo " * Creation of directories and files"
@mkdir -p $(PACKAGE)-bin/bin
@mkdir -p $(PACKAGE)-bin/manifest
@mkdir -p $(PACKAGE)-dev/lib/pkgconfig
@mkdir -p $(PACKAGE)-dev/include/$(NAME)$(VERMAJ)$(VERMIN)
@mkdir -p $(PACKAGE)-dev/manifest
@touch $(PACKAGE)-bin/manifest/$(PACKAGE)-bin.mft
@touch $(PACKAGE)-bin/manifest/$(PACKAGE)-bin.ver
@touch $(PACKAGE)-dev/manifest/$(PACKAGE)-dev.mft
@touch $(PACKAGE)-dev/manifest/$(PACKAGE)-dev.ver
compilation:
@echo " * Compilation of $(PACKAGE)"
cd $(PACKAGE) && CPPFLAGS="$(CPPFLAGS) -DPNG_CONSOLE_IO_SUPPORTED -D_WIN32_WCE=0x0420" \
CFLAGS="$(CFLAGS) -mms-bitfields -O3 -pipe -fomit-frame-pointer" \
LDFLAGS="$(LDFLAGS) -Wl,--enable-auto-import -Wl,-s" \
./configure --prefix=/opt/wince --host=arm-mingw32ce && make
copy:
@echo " * Copy of binary and development files"
@for i in $(BIN); do \
cp $(PACKAGE)/.libs/$$i $(PACKAGE)-bin/bin; \
done
@for i in $(LIB); do \
cp $(PACKAGE)/.libs/$$i $(PACKAGE)-dev/lib; \
done
@for i in $(INCLUDE); do \
cp $(PACKAGE)/$$i $(PACKAGE)-dev/include/$(NAME)$(VERMAJ)$(VERMIN); \
done
@for i in $(PC); do \
cp $(PACKAGE)/$$i $(PACKAGE)-dev/lib/pkgconfig; \
done
manifest:
@echo " * Creation of the manifest"
@cd $(PACKAGE)-bin && find * >> manifest/$(PACKAGE)-bin.mft
@cd $(PACKAGE)-bin && \
echo $(MANIFESTVERBIN) >> manifest/$(PACKAGE)-bin.ver && \
echo $(MANIFESTVERDESC) >> manifest/$(PACKAGE)-bin.ver
@cd $(PACKAGE)-dev && find * >> manifest/$(PACKAGE)-dev.mft
@cd $(PACKAGE)-dev && \
echo $(MANIFESTVERDEV) >> manifest/$(PACKAGE)-dev.ver && \
echo $(MANIFESTVERDESC) >> manifest/$(PACKAGE)-dev.ver
archive:
@echo " * Creation of the archives"
@tar cf $(PACKAGE)-bin.tar $(PACKAGE)-bin
@bzip2 -9 $(PACKAGE)-bin.tar
@tar cf $(PACKAGE)-dev.tar $(PACKAGE)-dev
@bzip2 -9 $(PACKAGE)-dev.tar
clean:
@echo " * Cleaning"
@rm -rf $(PACKAGE)*
help:
@echo
@echo "To create the archives, type:"
@echo " make"
@echo
@echo "To remove everything, type:"
@echo " make clean"
@echo

225
3rdparty/libpng/scripts/makefile.darwin vendored
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@ -1,225 +0,0 @@
# makefile for libpng on Darwin / Mac OS X
# Copyright (C) 2002, 2004, 2006, 2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 2001 Christoph Pfisterer
# derived from makefile.linux:
# Copyright (C) 1998, 1999 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# where "make install" puts libpng.a, libpng16.dylib, png.h, pngconf.h,
# and pnglibconf.h
prefix=/usr/local
exec_prefix=$(prefix)
# Where the zlib library and include files are located
ZLIBLIB=/usr/lib
ZLIBINC=/usr/include
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).dylib
LIBSOMAJ=$(LIBNAME).$(PNGMAJ).dylib
LIBSOREL=$(LIBNAME).$(PNGMAJ).$(RELEASE).dylib
OLDSO=libpng.dylib
# Utilities:
CC=cc
AR_RC=ar rc
MKDIR_P=mkdir -p
LN_SF=ln -sf
RANLIB=ranlib
CP=cp
RM_F=/bin/rm -f
CPPFLAGS=-I$(ZLIBINC)
# CFLAGS=-W -Wall -O3 -funroll-loops
CFLAGS=-W -Wall -O -funroll-loops
LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
.c.pic.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -fno-common -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo libs=\"-lpng16 -lz\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJSDLL)
$(CC) -dynamiclib \
-install_name $(LIBPATH)/$(LIBSOMAJ) \
-current_version 16 -compatibility_version 16 \
-o $(LIBSOMAJ) \
$(OBJSDLL) -L$(ZLIBLIB) -lz
pngtest: pngtest.o $(LIBSO)
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
$(RANLIB) $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOMAJ)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)
chmod 755 $(DL)/$(LIBSOMAJ)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
$(CC) $(CPPFLAGS) $(CFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
libpng.pc $(LIBNAME).*dylib pngtesti pnglibconf.h
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

210
3rdparty/libpng/scripts/makefile.dec vendored
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@ -1,210 +0,0 @@
# makefile for libpng on DEC Alpha Unix
# Copyright (C) 2000-2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Library name:
PNGMAJ = 16
LIBNAME = libpng16
# Shared library names:
LIBSO=$(LIBNAME).so
LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.so
# Utilities:
AR_RC=ar rc
CC=cc
MKDIR_P=mkdir
LN_SF=ln -f -s
RANLIB=ranlib
CP=cp
RM_F=/bin/rm -f
# where make install puts libpng.a and png.h
prefix=/usr/local
exec_prefix=$(prefix)
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
# Where the zlib library and include files are located
#ZLIBLIB=/usr/local/lib
#ZLIBINC=/usr/local/include
ZLIBLIB=../zlib
ZLIBINC=../zlib
CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS=-std -w1 -O # -g
LDFLAGS=-L$(ZLIBLIB) -rpath $(ZLIBLIB) libpng.a -lz -lm
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
all: $(LIBSO) libpng.a pngtest libpng.pc libpng-config
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo ccopts=\"-std\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo libs=\"-lpng16 -lz -lm\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJS)
$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) \
-soname $(LIBSOMAJ)
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@/bin/rm -f $(DI)/libpng
(cd $(DI); $(LN_SF)(LIBNAME) libpng; $(LN_SF)(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@/bin/rm -f $(DL)/libpng.a
(cd $(DL); $(LN_SF)(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@/bin/rm -f $(DM)/man3/libpng.3
-@/bin/rm -f $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@/bin/rm -f $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@/bin/rm -f $(DB)/libpng-config
-@/bin/rm -f $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF)(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) -w1 -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
echo
echo Testing installed dynamic shared library.
$(CC) -w1 $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -R$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

72
3rdparty/libpng/scripts/makefile.dj2 vendored
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@ -1,72 +0,0 @@
# DJGPP (DOS gcc) makefile for libpng
# Copyright (C) 2002, 2006, 2009-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# where make install will put libpng.a and png.h
#prefix=/usr/local
prefix=.
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib
CC=gcc
CPPFLAGS=-I../zlib -DPNG_NO_SNPRINTF
CFLAGS=-O
LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
RANLIB=ranlib
CP=cp
RM_F=rm -f
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o pngwtran.o \
pngmem.o pngerror.o pngpread.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
all: libpng.a pngtest
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng.a: $(OBJS)
ar rc $@ $(OBJS)
$(RANLIB) $@
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
coff2exe pngtest
test: pngtest
./pngtest
clean:
$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

69
3rdparty/libpng/scripts/makefile.freebsd vendored
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@ -1,69 +0,0 @@
# makefile for libpng under FreeBSD
# Copyright (C) 2014 Glenn Randers-Pehrson and Andrey A. Chernov
# Copyright (C) 2002, 2007, 2009 Glenn Randers-Pehrson and Andrey A. Chernov
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
PREFIX?= /usr/local
SHLIB_VER?= 16
LIB= png
SHLIB_MAJOR= ${SHLIB_VER}
SHLIB_MINOR= 0
NO_PROFILE= YES
NO_OBJ= YES
# where make install puts libpng.a and png.h
DESTDIR= ${PREFIX}
LIBDIR= /lib
INCS= png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
INCSDIR= /include/libpng
INCDIR= ${INCSDIR} # for 4.x bsd.lib.mk
MAN= libpng.3 libpngpf.3 png.5
MANDIR= /man/man
SYMLINKS= libpng/png.h ${INCSDIR}/../png.h \
libpng/pngconf.h ${INCSDIR}/../pngconf.h \
libpng/pnglibconf.h ${INCSDIR}/../pnglibconf.h
# where make install finds libz.a and zlib.h
ZLIBLIB= /usr/lib
ZLIBINC= /usr/include
LDADD+= -lm -lz
#LDADD+= -lm -lz -lssp_nonshared # for OSVERSION < 800000 ?
DPADD+= ${LIBM} ${LIBZ}
CPPFLAGS+= -I. -I${ZLIBINC}
CFLAGS+= -W -Wall
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
pngtest: pngtest.o libpng.a
${CC} ${CFLAGS} -L. -static -o pngtest pngtest.o -L${ZLIBLIB} \
-lpng ${LDADD}
CLEANFILES= pngtest pngtest.o pngout.png
test: pngtest
./pngtest
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
cp $(PNGLIBCONF_H_PREBUILT) $@
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
.include <bsd.lib.mk>

87
3rdparty/libpng/scripts/makefile.gcc vendored
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@ -1,87 +0,0 @@
# makefile for libpng using gcc (generic, static library)
# Copyright (C) 2008, 2014 Glenn Randers-Pehrson
# Copyright (C) 2000 Cosmin Truta
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Location of the zlib library and include files
ZLIBINC = ../zlib
ZLIBLIB = ../zlib
# Compiler, linker, lib and other tools
CC = gcc
LD = $(CC)
AR_RC = ar rcs
RANLIB = ranlib
CP = cp
RM_F = rm -f
WARNMORE = -Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes # -Wconversion
CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS = -W -Wall -O2 # $(WARNMORE) -g
LDFLAGS =
LIBS = -lz -lm
# File extensions
EXEEXT =
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
# Variables
OBJS = png.o pngerror.o pngget.o pngmem.o pngpread.o \
pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \
pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o
# Targets
all: static
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
static: libpng.a pngtest$(EXEEXT)
shared:
@echo This is a generic makefile that cannot create shared libraries.
@echo Please use a configuration that is specific to your platform.
@false
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
test: pngtest$(EXEEXT)
./pngtest$(EXEEXT)
pngtest$(EXEEXT): pngtest.o libpng.a
$(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest.o libpng.a $(LIBS)
clean:
$(RM_F) *.o libpng.a pngtest$(EXEEXT) pngout.png pnglibconf.h
png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

231
3rdparty/libpng/scripts/makefile.hp64 vendored
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@ -1,231 +0,0 @@
# makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
# Copyright (C) 1999-2002, 2006, 2009, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42
# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Where the zlib library and include files are located
ZLIBLIB=/opt/zlib/lib
ZLIBINC=/opt/zlib/include
# Note that if you plan to build a libpng shared library, zlib must also
# be a shared library, which zlib's configure does not do. After running
# zlib's configure, edit the appropriate lines of makefile to read:
# CFLAGS=-O1 -DHAVE_UNISTD -DUSE_MAP -fPIC \
# LDSHARED=ld -b
# SHAREDLIB=libz.sl
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).sl
LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.sl
# Utilities:
AR_RC=ar rc
CC=cc
MKDIR_P=mkdir -p
LN_SF=ln -sf
RANLIB=ranlib
CP=cp
RM_F=/bin/rm -f
CPPFLAGS=-I$(ZLIBINC) \
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_UNISTD_H -DUSE_MMAP
CFLAGS=-O -Ae -Wl,+vnocompatwarnings +DD64 +Z
# Caution: be sure you have built zlib with the same CFLAGS.
CCFLAGS=-O -Ae -Wl,+vnocompatwarnings +DD64 +Z
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
# where make install puts libpng.a, libpng16.sl, and png.h
prefix=/opt/libpng
exec_prefix=$(prefix)
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
.c.pic.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) +z -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo ccopts=\"-O -Ae -Wl,+vnocompatwarnings +DD64 +Z\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo libs=\"-lpng16 -lz -lm\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJSDLL)
$(LD) -b +s \
+h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) -I$(DI) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
echo
echo Testing installed dynamic shared library.
$(CC) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

234
3rdparty/libpng/scripts/makefile.hpgcc vendored
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@ -1,234 +0,0 @@
# makefile for libpng on HP-UX using GCC with the HP ANSI/C linker.
# Copyright (C) 2002, 2006-2008, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 2001, Laurent faillie
# Copyright (C) 1998, 1999 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).sl
LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.sl
# Utilities:
CC=gcc
LD=ld
AR_RC=ar rc
MKDIR_P=mkdir -p
LN_SF=ln -sf
RANLIB=ranlib
CP=cp
RM_F=/bin/rm -f
# where "make install" puts libpng.a, $(OLDSO)*, png.h, pngconf.h
# and pnglibconf.h
prefix=/usr/local
exec_prefix=$(prefix)
# Where the zlib library and include files are located
ZLIBLIB=/opt/zlib/lib
ZLIBINC=/opt/zlib/include
# Note that if you plan to build a libpng shared library, zlib must also
# be a shared library, which zlib's configure does not do. After running
# zlib's configure, edit the appropriate lines of makefile to read:
# CFLAGS=-O1 -DHAVE_UNISTD -DUSE_MAP -fPIC \
# LDSHARED=ld -b
# SHAREDLIB=libz.sl
ALIGN=
# for i386:
#ALIGN=-malign-loops=2 -malign-functions=2
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
# for pgcc version 2.95.1, -O3 is buggy; don't use it.
CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
CFLAGS=-W -Wall -O3 -funroll-loops $(ALIGN) # $(WARNMORE) -g
#LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz -lm
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
.c.pic.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo libs=\"-lpng16 -lz -lm\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJSDLL)
$(LD) -b +s \
+h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
pngtest: pngtest.o $(LIBSO)
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) -I$(DI) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) -Wl,-rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
echo
echo Testing installed dynamic shared library.
$(CC) $(CPPFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

229
3rdparty/libpng/scripts/makefile.hpux vendored
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@ -1,229 +0,0 @@
# makefile for libpng, HPUX (10.20 and 11.00) using the ANSI/C product.
# Copyright (C) 1999-2002, 2006, 2010-2014 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42
# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
# Where the zlib library and include files are located
ZLIBLIB=/opt/zlib/lib
ZLIBINC=/opt/zlib/include
# Note that if you plan to build a libpng shared library, zlib must also
# be a shared library, which zlib's configure does not do. After running
# zlib's configure, edit the appropriate lines of makefile to read:
# CPPFLAGS=-DHAVE_UNISTD -DUSE_MAP
# CFLAGS=-O1 -fPIC
# LDSHARED=ld -b
# SHAREDLIB=libz.sl
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
# Shared library names:
LIBSO=$(LIBNAME).sl
LIBSOMAJ=$(LIBNAME).sl.$(PNGMAJ)
LIBSOREL=$(LIBSOMAJ).$(RELEASE)
OLDSO=libpng.sl
# Utilities:
AR_RC=ar rc
CC=cc
MKDIR_P=mkdir -p
LN_SF=ln -sf
RANLIB=ranlib
RM_F=/bin/rm -f
# where make install puts libpng.a, libpng16.sl, and png.h
prefix=/opt/libpng
exec_prefix=$(prefix)
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
MANPATH=$(prefix)/man
BINPATH=$(exec_prefix)/bin
CPPFLAGS=-I$(ZLIBINC)
CFLAGS=-O -Ae +DA1.1 +DS2.0
# Caution: be sure you have built zlib with the same CFLAGS.
CCFLAGS=-O -Ae +DA1.1 +DS2.0
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
# override DESTDIR= on the make install command line to easily support
# installing into a temporary location. Example:
#
# make install DESTDIR=/tmp/build/libpng
#
# If you're going to install into a temporary location
# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
# you execute make install.
DESTDIR=
DB=$(DESTDIR)$(BINPATH)
DI=$(DESTDIR)$(INCPATH)
DL=$(DESTDIR)$(LIBPATH)
DM=$(DESTDIR)$(MANPATH)
# Pre-built configuration
# See scripts/pnglibconf.mak for more options
PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
.c.pic.o:
$(CC) -c $(CPPFLAGS) $(CFLAGS) +z -o $@ $*.c
all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
$(CP) $(PNGLIBCONF_H_PREBUILT) $@
libpng.a: $(OBJS)
$(AR_RC) $@ $(OBJS)
$(RANLIB) $@
libpng.pc:
cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
-e s!@exec_prefix@!$(exec_prefix)! \
-e s!@libdir@!$(LIBPATH)! \
-e s!@includedir@!$(INCPATH)! \
-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
libpng-config:
( cat scripts/libpng-config-head.in; \
echo prefix=\"$(prefix)\"; \
echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
echo ccopts=\"-O -Ae +DA1.1 +DS2.0\"; \
echo L_opts=\"-L$(LIBPATH)\"; \
echo libs=\"-lpng16 -lz -lm\"; \
cat scripts/libpng-config-body.in ) > libpng-config
chmod +x libpng-config
$(LIBSO): $(LIBSOMAJ)
$(LN_SF) $(LIBSOMAJ) $(LIBSO)
$(LIBSOMAJ): $(OBJSDLL)
$(LD) -b +s \
+h $(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install-headers: png.h pngconf.h pnglibconf.h
-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
-@$(RM_F) $(DI)/libpng
(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
install-static: install-headers libpng.a
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
cp libpng.a $(DL)/$(LIBNAME).a
chmod 644 $(DL)/$(LIBNAME).a
-@$(RM_F) $(DL)/libpng.a
(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
install-shared: install-headers $(LIBSOMAJ) libpng.pc
-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
-@$(RM_F) $(DL)/$(LIBSO)
-@$(RM_F) $(DL)/$(LIBSOREL)
-@$(RM_F) $(DL)/$(OLDSO)
cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
chmod 755 $(DL)/$(LIBSOREL)
(cd $(DL); \
$(LN_SF) $(LIBSOREL) $(LIBSO); \
$(LN_SF) $(LIBSO) $(OLDSO))
-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
-@$(RM_F) $(DL)/pkgconfig/libpng.pc
cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
install-man: libpng.3 libpngpf.3 png.5
-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
-@$(RM_F) $(DM)/man3/libpng.3
-@$(RM_F) $(DM)/man3/libpngpf.3
cp libpng.3 $(DM)/man3
cp libpngpf.3 $(DM)/man3
-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
-@$(RM_F) $(DM)/man5/png.5
cp png.5 $(DM)/man5
install-config: libpng-config
-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
-@$(RM_F) $(DB)/libpng-config
-@$(RM_F) $(DB)/$(LIBNAME)-config
cp libpng-config $(DB)/$(LIBNAME)-config
chmod 755 $(DB)/$(LIBNAME)-config
(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
install: install-static install-shared install-man install-config
# If you installed in $(DESTDIR), test-installed won't work until you
# move the library to its final location. Use test-dd to test it
# before then.
test-dd:
echo
echo Testing installed dynamic shared library in $(DL).
$(CC) -I$(DI) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(DL) -L$(ZLIBLIB) \
-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtestd pngtest.png
test-installed:
echo
echo Testing installed dynamic shared library.
$(CC) $(CPPFLAGS) $(CCFLAGS) \
`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
-L$(ZLIBLIB) \
-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
./pngtesti pngtest.png
clean:
$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
libpng-config $(LIBSO) $(LIBSOMAJ)* \
libpng.pc pnglibconf.h
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
pngtest.o: png.h pngconf.h pnglibconf.h

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