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*** Context Free
*** version 3.1
by Chris Coyne, John Horigan and Mark Lentczner
Context Free Copyright 2005-2018 Mark Lentczner and John Horigan
CFDG Copyright 2005 Chris Coyne
Anti-Grain Geometry library Copyright 2002-2005 Maxim Shemanarev
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DISTRIBUTION & LICENSE
Context Free is released under the GNU license.
Context Free is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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GENERAL NOTES
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FILE TREE
./ - top level: this file, license, Makefile,
Xcode project and Windows CLI solution
./input/ - sample input files
./input/tests - test input files
./src-agg/ - a subset of the Anti_Grain Geometry sources
./src-common/ - the CFDG engine
./src-ffmpeg/ - FFmpeg resources
./src-ffmpeg/include/ - FFmpeg include files
./src-ffmpeg/lib/ - FFmpeg libraries for Linux
./src-net/ - Windows .Net specific sources
./src-osx/ - Mac specific sources
./src-scintilla - Mac Scintilla sources
./src-unix/ - Unix/Posix specific sources
./src-win/ - Windows specific sources
./src-win/derived/ - pre-built output from flex and yacc for folks that
don't have those tools available
./src-win/icon/ - Explorer icons
./src-win/res/ - UI icons
./src-win/win-install/ - files for creating NSIS installer EXE
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MACINTOSH BUILD NOTES
Requires Xcode 9 & Mac OS X 10.7 (Lion).
Developed with XCode 9/10 and Mac OS X 10.14 (Mojave), has not been tested
with older versions of XCode or Mac OS X.
The Xcode project file is in the top directory:
./Context Free.xcodeproj
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WINDOWS GUI BUILD NOTES
Requires Visual Studio 2017 or later.
The VS2017 solution file is at ./src-net/ContextFreeNetVS11.sln
If you modify cfdg.l or cfdg.ypp then you must rebuild the parser files
in src-win/derived. If you have Cygwin or a similar Posix environment
installed or have access to a Unix/Linux or Mac system then cd to
src-win/derived and type 'make' (you will need bison and flex too).
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WINDOWS CLI (command line) BUILD NOTES
Requires Visual Studio 2017 or later.
The VS2017 CLI solution file is at ./ContextFreeCLIVS11.sln
If you modify cfdg.l or cfdg.ypp then you must rebuild the parser files
in src-win/derived. If you have Cygwin or a similar Posix environment
installed or have access to a Unix/Linux or Mac system then cd to
src-win/derived and type 'make' (you will need bison and flex too).
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BSD/LINUX/UNIX/POSIX BUILD NOTES
You'll need a c++ compiler (gcc 6 or clang 3.9), flex (not lex), bison 2.5 and
the libpng Library. Most of this should be installed or easily available on any
modern operating system distribution. If you need it, libpng can be found here:
http://libpng.org/pub/png/libpng.html
The Makefile assumes that libpng is installed at /usr/local/lib. If libpng is
installed in a different location then you must update the LIB_DIRS variable
in the Makefile with this location.
From the top level, you should just run:
$ make
You'll see a warning about "mktemp" and "mkstemp" during the link step.
This can be ignored.
To run the program, try something like:
$ ./cfdg -s 500 input/mtree.cfdg mtree.png
Run it with -? to get a usage summary:
$ ./cfdg -?
'make check' will test your compiled cfdg executable. 'sudo make install'
will install cfdg and the cfdg.1 man page in /usr/local.
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FFmpeg BUILD NOTES
Check out README.ffmpeg for building ffmpeg and enabling ffmpeg support
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