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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef BACKENDS_MIDI_MIDIPLUGIN_H
#define BACKENDS_MIDI_MIDIPLUGIN_H
#include "base/plugins.h"
#include "sound/mididrv.h"
/**
* A MidiPluginObject is essentially a factory for MidiDriver instances with
* the added ability of listing the available devices and their capabilities.
*/
class MidiPluginObject : public PluginObject {
public:
virtual ~MidiPluginObject() {}
/**
* Returns a unique string identifier which will be used to save the
* selected MIDI driver to the config file.
*/
virtual const char *getId() const = 0;
/**
* Returns the type kind of music supported by this driver, as specified
* by the MidiDriverFlags enum.
*/
virtual int getCapabilities() const = 0;
/**
* Returns a list of the available devices. The empty string means the
* default device.
*/
virtual Common::StringList getDevices() const {
Common::StringList dev;
dev.push_back("");
return dev;
}
/**
* Tries to instantiate a MIDI Driver instance based on the settings of
* the currently active ConfMan target. That is, the MidiPluginObject
* should query the ConfMan singleton for the device name, port, etc.
*
* @param mixer Pointer to the global Mixer object
* @param mididriver Pointer to a pointer which the MidiPluginObject sets
* to the newly create MidiDriver, or 0 in case of an error
* @return a PluginError describing the error which occurred, or kNoError
*/
virtual PluginError createInstance(Audio::Mixer *mixer, MidiDriver **mididriver) const = 0;
};
// MIDI plugins
typedef PluginSubclass<MidiPluginObject> MidiPlugin;
/**
* Singleton class which manages all MIDI plugins.
*/
class MidiManager : public Common::Singleton<MidiManager> {
private:
friend class Common::Singleton<SingletonBaseType>;
public:
const MidiPlugin::List &getPlugins() const;
};
/** Convenience shortcut for accessing the MIDI manager. */
#define MidiMan MidiManager::instance()
#endif
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