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@echo off | ||
title=Making PVRXPNG... | ||
echo Making PVRXPNG... Wait. | ||
echo. | ||
mingw32-make | ||
pause |
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Libpng 1.2.39 - August 13, 2009 | ||
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This is a public release of libpng, intended for use in production codes. | ||
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Files available for download: | ||
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Source files with LF line endings (for Unix/Linux) and with a | ||
"configure" script | ||
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libpng-1.2.39.tar.xz (LZMA-compressed, recommended) | ||
libpng-1.2.39.tar.gz | ||
libpng-1.2.39.tar.bz2 | ||
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Source files with LF line endings (for Unix/Linux) without the | ||
"configure" script | ||
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libpng-1.2.39-no-config.tar.xz (LZMA-compressed, recommended) | ||
libpng-1.2.39-no-config.tar.gz | ||
libpng-1.2.39-no-config.tar.bz2 | ||
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Source files with CRLF line endings (for Windows), without the | ||
"configure" script | ||
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lpng1239.zip | ||
lpng1239.7z | ||
lpng1239.tar.bz2 | ||
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Project files | ||
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libpng-1.2.39-project-netware.zip | ||
libpng-1.2.39-project-wince.zip | ||
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Other information: | ||
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libpng-1.2.39-README.txt | ||
libpng-1.2.39-KNOWNBUGS.txt | ||
libpng-1.2.39-LICENSE.txt | ||
libpng-1.2.39-Y2K-compliance.txt | ||
libpng-1.2.39-[previous version]-diff.txt | ||
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Changes since the last public release (1.2.38): | ||
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version 1.2.39 [August 13, 2009] | ||
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Added a prototype for png_64bit_product() in png.h | ||
Expanded the information about prototypes in the libpng style section of | ||
the documentation. | ||
Rebuilt configure scripts with autoconf-2.64. | ||
Avoid a possible NULL dereference in debug build, in png_set_text_2(). | ||
(bug introduced in libpng-0.95, discovered by Evan Rouault) | ||
Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec | ||
from <http://tukaani.org/xz>. | ||
Reject attempt to write iCCP chunk with negative embedded profile length | ||
(JD Chen) | ||
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net | ||
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net | ||
(subscription required; visit | ||
https://lists.sourceforge.net/lists/listinfo/png-mng-implement | ||
to subscribe) or to glennrp at users.sourceforge.net | ||
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Glenn R-P |
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Installing libpng version 1.2.39 - August 13, 2009 | ||
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On Unix/Linux and similar systems, you can simply type | ||
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./configure [--prefix=/path] | ||
make check | ||
make install | ||
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and ignore the rest of this document. | ||
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If configure does not work on your system and you have a reasonably | ||
up-to-date set of tools, running ./autogen.sh before running ./configure | ||
may fix the problem. You can also run the individual commands in | ||
autogen.sh with the --force option, if supported by your version of | ||
the tools. If you run 'libtoolize --force', though, this will replace | ||
the distributed, patched, version of ltmain.sh with an unpatched version | ||
and your shared library builds may fail to produce libraries with the | ||
correct version numbers. | ||
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Instead, you can use one of the custom-built makefiles in the | ||
"scripts" directory | ||
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cp scripts/makefile.system makefile | ||
make test | ||
make install | ||
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Or you can use one of the "projects" in the "projects" directory. | ||
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If you want to use "cmake" (see www.cmake.org), copy CMakeLists.txt | ||
from the "scripts" directory to this directory and type | ||
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cmake . [-DPNG_MMX=YES] -DCMAKE_INSTALL_PREFIX=/path | ||
make | ||
make install | ||
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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. zlib can be placed in another directory, | ||
at the same level as libpng. | ||
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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. | ||
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You can rename the directories that you downloaded (they | ||
might be called "libpng-1.2.39" or "lpng109" and "zlib-1.2.1" | ||
or "zlib121") so that you have directories called "zlib" and "libpng". | ||
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Your directory structure should look like this: | ||
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.. (the parent directory) | ||
libpng (this directory) | ||
INSTALL (this file) | ||
README | ||
*.h | ||
*.c | ||
contrib | ||
gregbook | ||
pngminus | ||
pngsuite | ||
visupng | ||
projects | ||
beos | ||
c5builder (Borland) | ||
visualc6 (msvc) | ||
netware.txt | ||
wince.txt | ||
scripts | ||
makefile.* | ||
pngtest.png | ||
etc. | ||
zlib | ||
README | ||
*.h | ||
*.c | ||
contrib | ||
etc. | ||
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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. | ||
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If you are building libpng with MSVC, you can enter the | ||
libpng projects\visualc6 directory and follow the instructions in | ||
projects\visualc6\README.txt. | ||
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You can build libpng for WindowsCE by downloading and installing | ||
the projects\wince directory as instructed in the projects\wince.txt file, and | ||
then following the instructions in the README* files. Similarly, you can | ||
build libpng for Netware or Beos as instructed in projects\netware.txt | ||
or projects\beos. | ||
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Else 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. | ||
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The files that are presently available in the scripts directory | ||
include | ||
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CMakeLists.txt => "cmake" script | ||
makefile.std => Generic UNIX makefile (cc, creates static libpng.a) | ||
makefile.elf => Linux/ELF makefile symbol versioning, | ||
gcc, creates libpng12.so.0.1.2.39) | ||
makefile.linux => Linux/ELF makefile | ||
(gcc, creates libpng12.so.0.1.2.39) | ||
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.aix => AIX/gcc makefile | ||
makefile.cygwin => Cygwin/gcc makefile | ||
makefile.darwin => Darwin makefile, can use on MacosX | ||
makefile.dec => DEC Alpha UNIX makefile | ||
makefile.freebsd => FreeBSD 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 | ||
libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later | ||
makefile.netbsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so. | ||
makefile.ne12bsd => NetBSD/cc makefile, uses PNGGCCRD, | ||
makes libpng12.so | ||
makefile.openbsd => OpenBSD makefile | ||
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) | ||
makefile.sggcc => Silicon Graphics (gcc, | ||
creates libpng12.so.0.1.2.39) | ||
makefile.sunos => Sun makefile | ||
makefile.solaris => Solaris 2.X makefile (gcc, | ||
creates libpng12.so.0.1.2.39) | ||
makefile.solaris-x86 => Solaris/intelMMX 2.X makefile (gcc, | ||
creates libpng12.so.0.1.2.39) | ||
makefile.so9 => Solaris 9 makefile (gcc, | ||
creates libpng12.so.0.1.2.39) | ||
makefile.32sunu => Sun Ultra 32-bit makefile | ||
makefile.64sunu => Sun Ultra 64-bit makefile | ||
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc | ||
makefile.mips => MIPS makefile | ||
makefile.acorn => Acorn makefile | ||
makefile.amiga => Amiga makefile | ||
smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler | ||
(Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc) | ||
makefile.atari => Atari makefile | ||
makefile.beos => BEOS makefile for X86 | ||
makefile.bor => Borland makefile (uses bcc) | ||
makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode) | ||
makefile.tc3 => Turbo C 3.0 makefile | ||
makefile.dj2 => DJGPP 2 makefile | ||
makefile.msc => Microsoft C makefile | ||
makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later | ||
makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def) | ||
pngos2.def => OS/2 module definition file used by makefile.os2 | ||
makefile.watcom => Watcom 10a+ Makefile, 32-bit flat memory model | ||
makevms.com => VMS build script | ||
descrip.mms => VMS makefile for MMS or MMK | ||
SCOPTIONS.ppc => Used with smakefile.ppc | ||
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Copy the file (or files) that you need from the | ||
scripts directory into this directory, for example | ||
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MSDOS example: copy scripts\makefile.msc makefile | ||
UNIX example: cp scripts/makefile.std makefile | ||
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Read the makefile to see if you need to change any source or | ||
target directories to match your preferences. | ||
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Then read pngconf.h to see if you want to make any configuration | ||
changes. | ||
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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. | ||
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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". | ||
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If you encounter a compiler error message complaining about the | ||
lines | ||
__png.h__ already includes setjmp.h; | ||
__dont__ include it again.; | ||
This means you have compiled another module that includes setjmp.h, | ||
which is hazardous because the two modules might not include exactly | ||
the same setjmp.h. If you are sure that you know what you are doing | ||
and that they are exactly the same, then you can comment out or | ||
delete the two lines. Better yet, use the cexcept interface | ||
instead, as demonstrated in contrib/visupng of the libpng distribution. | ||
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Further information can be found in the README and libpng.txt | ||
files, in the individual makefiles, in png.h, and the manual pages | ||
libpng.3 and png.5. | ||
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Using the ./configure script -- 16 December 2002. | ||
================================================= | ||
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The ./configure script should work compatibly with what scripts/makefile.* | ||
did, however there are some options you need to add to configure explicitly, | ||
which previously was done semi-automatically (if you didn't edit | ||
scripts/makefile.* yourself, that is) | ||
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CFLAGS="-Wall -O -funroll-loops \ | ||
-malign-loops=2 -malign-functions=2" ./configure --prefix=/usr/include \ | ||
--with-pkgconfigdir=/usr/lib/pkgconfig --includedir=/usr/include | ||
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You can alternatively specify --includedir=/usr/include, /usr/local/include, | ||
/usr/include/png12, or whatever. | ||
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Known bugs in libpng version 1.2.39 | ||
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1. February 23, 2006: The custom makefiles don't build libpng with -lz. | ||
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STATUS: This is a subject of debate. The change will probably be made | ||
as a part of a major overhaul of the makefiles in libpng version 1.4.0. | ||
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2. February 24, 2006: The Makefile generated by the "configure" script | ||
fails to install symbolic links | ||
libpng12.so => libpng12.so.0.1.2.9betaN | ||
that are generated by the custom makefiles. | ||
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3. September 4, 2007: There is a report that pngtest crashes on MacOS 10. | ||
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STATUS: workarounds are | ||
1) Compile without optimization (crashes are observed with | ||
-arch i386 and -O2 or -O3, using gcc-4.0.1). | ||
2) Compile pngtest.c with PNG_DEBUG defined (the bug goes away if | ||
you try to look at it). | ||
3) Ignore the crash. The library itself seems to be OK. | ||
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