1 files changed, 110 insertions, 0 deletions
diff --git a/engines/sci/sound/softseq/mididriver.h b/engines/sci/sound/softseq/mididriver.h
new file mode 100644
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+++ b/engines/sci/sound/softseq/mididriver.h
@@ -0,0 +1,110 @@
+/* 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 SCI_SFX_SOFTSEQ_MIDIDRIVER_H
+#define SCI_SFX_SOFTSEQ_MIDIDRIVER_H
+
+#include "sci/sci.h"
+#include "sound/mididrv.h"
+#include "sound/softsynth/emumidi.h"
+#include "common/error.h"
+
+namespace Sci {
+
+class ResourceManager;
+
+enum {
+	MIDI_CHANNELS = 16,
+	MIDI_PROP_MASTER_VOLUME = 0
+};
+
+
+#define MIDI_RHYTHM_CHANNEL 9
+
+/* Special SCI sound stuff */
+
+#define SCI_MIDI_TIME_EXPANSION_PREFIX 0xF8
+#define SCI_MIDI_TIME_EXPANSION_LENGTH 240
+
+#define SCI_MIDI_EOT 0xFC
+#define SCI_MIDI_SET_SIGNAL 0xCF
+#define SCI_MIDI_SET_POLYPHONY 0x4B
+#define SCI_MIDI_RESET_ON_SUSPEND 0x4C
+#define SCI_MIDI_CHANNEL_MUTE 0x4E
+#define SCI_MIDI_SET_REVERB 0x50
+#define SCI_MIDI_HOLD 0x52
+#define SCI_MIDI_CUMULATIVE_CUE 0x60
+#define SCI_MIDI_CHANNEL_SOUND_OFF 0x78 /* all-sound-off for Bn */
+#define SCI_MIDI_CHANNEL_NOTES_OFF 0x7B /* all-notes-off for Bn */
+
+#define SCI_MIDI_SET_SIGNAL_LOOP 0x7F
+/* If this is the parameter of 0xCF, the loop point is set here */
+
+#define SCI_MIDI_CONTROLLER(status) ((status & 0xF0) == 0xB0)
+
+class MidiPlayer : public MidiDriver {
+protected:
+	MidiDriver *_driver;
+public:
+	int open() {
+		ResourceManager *resMan = ((SciEngine *)g_engine)->getResourceManager();	// HACK
+		return open(resMan);
+	}
+	virtual int open(ResourceManager *resMan) { return _driver->open(); }
+	virtual void close() { _driver->close(); }
+	virtual void send(uint32 b) { _driver->send(b); }
+	uint32 getBaseTempo() { return _driver->getBaseTempo(); }
+	virtual bool hasRhythmChannel() const = 0;
+	MidiChannel *allocateChannel() { return _driver->allocateChannel(); }
+	MidiChannel *getPercussionChannel() { return _driver->getPercussionChannel(); }
+	void setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc) { _driver->setTimerCallback(timer_param, timer_proc); }
+
+	virtual int getPlayMask(SciVersion soundVersion) = 0;
+	virtual int getPolyphony() const = 0;
+
+	virtual void setVolume(byte volume) {
+		if(_driver)
+			_driver->property(MIDI_PROP_MASTER_VOLUME, volume);
+	}
+
+	virtual int getVolume() {
+		return _driver ? _driver->property(MIDI_PROP_MASTER_VOLUME, 0xffff) : 0;
+ 	}
+
+	virtual void playSwitch(bool play) {
+		if (!play) {
+			// Send "All Sound Off" on all channels
+			for (int i = 0; i < MIDI_CHANNELS; ++i)
+				_driver->send(0xb0 + i, SCI_MIDI_CHANNEL_NOTES_OFF, 0);
+		}
+	}
+};
+
+extern MidiPlayer *MidiPlayer_Adlib_create();
+extern MidiPlayer *MidiPlayer_Amiga_create();
+
+} // End of namespace Sci
+
+#endif // SCI_SFX_SOFTSEQ_MIDIDRIVER_H