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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 SOUND_MUSICPLUGIN_H
+#define SOUND_MUSICPLUGIN_H
+
+#include "base/plugins.h"
+#include "sound/mididrv.h"
+
+/**
+ * Music types that music drivers can implement and engines can rely on.
+ */
+enum MusicType {
+ MT_PCSPK = 1, // PC Speaker
+ MT_PCJR = 2, // PCjr
+ MT_ADLIB = 3, // AdLib
+ MT_TOWNS = 4, // FM-TOWNS
+ MT_GM = 5, // General MIDI
+ MT_MT32 = 6, // MT-32
+ MT_GS = 7 // Roland GS
+};
+
+class MusicPluginObject;
+
+/**
+ * Description of a Music device. Used to list the devices a Music driver
+ * can manage and their capabilities.
+ * A device with an empty name means the default device.
+ */
+class MusicDevice {
+public:
+ MusicDevice(MusicPluginObject const *musicPlugin, Common::String name, MusicType mt);
+
+ Common::String &getName() { return _name; }
+ Common::String &getMusicDriverName() { return _musicDriverName; }
+ Common::String &getMusicDriverId() { return _musicDriverId; }
+ MusicType getMusicType() { return _type; }
+
+ /**
+ * Returns a user readable string that contains the name of the current
+ * device name (if it isn't the default one) and the name of the driver.
+ */
+ Common::String getCompleteName();
+
+private:
+ Common::String _name;
+ Common::String _musicDriverName;
+ Common::String _musicDriverId;
+ MusicType _type;
+};
+
+/** List of music devices. */
+typedef Common::List<MusicDevice> MusicDevices;
+
+/**
+ * A MusicPluginObject is essentially a factory for MidiDriver instances with
+ * the added ability of listing the available devices and their capabilities.
+ */
+class MusicPluginObject : public PluginObject {
+public:
+ virtual ~MusicPluginObject() {}
+
+ /**
+ * 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 a list of the available devices.
+ */
+ virtual MusicDevices getDevices() const = 0;
+
+ /**
+ * Tries to instantiate a MIDI Driver instance based on the settings of
+ * the currently active ConfMan target. That is, the MusicPluginObject
+ * 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 MusicPluginObject 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;
+};
+
+
+// Music plugins
+
+typedef PluginSubclass<MusicPluginObject> MusicPlugin;
+
+/**
+ * Singleton class which manages all Music plugins.
+ */
+class MusicManager : public Common::Singleton<MusicManager> {
+private:
+ friend class Common::Singleton<SingletonBaseType>;
+
+public:
+ const MusicPlugin::List &getPlugins() const;
+};
+
+/** Convenience shortcut for accessing the Music manager. */
+#define MusicMan MusicManager::instance()
+
+#endif