This fork of adplug includes a new "device," opl3duoserial, that sends all register writes over a Linux serial port. This is intended to be used with an Arduino running opl3serial attached to an OPL3 Duo! board.

AdPlug - A free AdLib sound player library Copyright (C) 1999 - 2017 Simon Peter, et al.

Website: http://adplug.github.io/

AdPlug is a free, multi-platform, hardware independent AdLib sound player library, mainly written in C++. AdPlug plays sound data, originally created for the AdLib (OPL2/3) audio board, on top of an OPL2/3 emulator or by using the real hardware. No OPL2/3 chips are required for playback.

AdPlug currently is tested to compile and run well on the following platforms and compilers:

This list only incorporates platforms on which this release of AdPlug has been tested successfully. This and/or earlier versions of AdPlug may and did run on a variety of other platforms as well. It just means they haven't been explicitly tested for this release.

The library builds as dynamic and/or static link library, depending on the facilities provided by the host OS. These are autodetected.

AdPlug depends upon the following libraries:

libbinio can be obtained from http://adplug.github.io/libbinio/.

Please refer to the INSTALL file for installation instructions.

If you checked out from git, please first run:

autoreconf --install

to generate the build cruft and get the configure script. Oh, and did I mention you need recent versions of autoconf, automake and libtool?

If you checked out from git, you will need to copy src\version.h.in to src\version.h and replace @VERSION@ with a proper version number.

A Visual Studio 2015 solution you can open and build is located in contrib\vs2015\vs2015.sln.

If you feel you have to debug AdPlug, you can compile it with debug logging support. This is disabled by default. To enable it, you have to define the DEBUG preprocessor macro. This is done by passing the '--enable-debug' commandline option to the 'configure' script to enable debugging.

AdPlug logs to stderr by default. The output can be redirected anytime to a user specified logfile. This is done by using the 'CAdPlug::debug_output' method of the 'CAdPlug' class.

If you have changed a format and the tests now fail (run "make check"), once you have confirmed the output is correct, there will be a *.test file in the test/ folder. Rename this from .test to .ref to have it used as the new reference data.

AdPlug now uses WoodyOPL, the LGPL-licenced OPL emulator from the DOSBox team.

Previously, AdPlug used MAME's fmopl OPL2 emulator. While this distribution includes an old LGPL'd version of the emulator, which was developed by Tatsuyuki Satoh alone, who relicensed this version under the LGPL, there is a patch available in the mame branch of the GitHub repository that replaces the old version by the latest version from the MAME source distribution. The new version features improved emulation quality, but is licensed under the MAME license, which restricts commercial redistribution.

The same goes for the OPL3 emulator, which requires the new version of the OPL2 emulator to build.

Later versions of MAME are released under the GPL, so this patch could be updated to use that instead, however this is probably not necessary given the high quality of the WoodyOPL emulator.

- Simon Peter <[email protected]>