added basic MIDI playback

svn-id: r24617

1 files changed, 80 insertions, 0 deletions

diff --git a/engines/touche/midi.h b/engines/touche/midi.h
new file mode 100644
index 0000000000..e012761d70
--- /dev/null
+++ b/engines/touche/midi.h
@@ -0,0 +1,80 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2006 The ScummVM project
+ *
+ * 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 TOUCHE_MIDI_H
+#define TOUCHE_MIDI_H
+
+#include "common/util.h"
+#include "sound/mididrv.h"
+
+class MidiParser;
+
+namespace Common {
+	class ReadStream;
+	class Mutex;
+}
+
+namespace Touche {
+
+class MidiPlayer : public MidiDriver {
+public:
+
+	enum {
+		NUM_CHANNELS = 16
+	};
+
+	MidiPlayer(MidiDriver *driver);
+	~MidiPlayer();
+
+	void play(Common::ReadStream &stream, int size, bool loop = false);
+	void stop();
+	void updateTimer();
+	void setVolume(int volume);
+
+	// MidiDriver interface
+	int open();
+	void close();
+	void send(uint32 b);
+	void metaEvent(byte type, byte *data, uint16 length);
+	void setTimerCallback(void *timerParam, void (*timerProc)(void *)) { }
+	uint32 getBaseTempo() { return _driver ? _driver->getBaseTempo() : 0; }
+	MidiChannel *allocateChannel() { return 0; }
+	MidiChannel *getPercussionChannel() { return 0; }
+
+private:
+
+	static void timerCallback(void *p);
+
+	int _masterVolume;
+	bool _isLooping;
+	bool _isPlaying;
+	MidiDriver *_driver;
+	MidiParser *_parser;
+	MidiChannel *_channelsTable[NUM_CHANNELS];
+	byte _channelsVolume[NUM_CHANNELS];
+	uint8 *_midiData;
+	Common::Mutex _mutex;
+};
+
+} // namespace Touche
+
+#endif