[Scummvm-cvs-logs] CVS: scummvm/backends/midi zodiac.cpp,1.1,1.2

[Chris Apers]

Update of /cvsroot/scummvm/scummvm/backends/midi
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7724

Modified Files:
	zodiac.cpp 
Log Message:
Zodiac midi driver

Index: zodiac.cpp
===================================================================
RCS file: /cvsroot/scummvm/scummvm/backends/midi/zodiac.cpp,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- zodiac.cpp	5 Feb 2004 13:53:18 -0000	1.1
+++ zodiac.cpp	12 Sep 2004 11:14:14 -0000	1.2
@@ -1,27 +1,119 @@
-/* ScummVM - Scumm Interpreter
- * Copyright (C) 2001-2004 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
- * $Header$
- */
-
-#include "stdafx.h"
-#include "sound/mpu401.h"
-#include "common/util.h"
-
-#ifndef DISABLE_TAPWAVE
-// Tapwave code will come here
-#endif
+/* ScummVM - Scumm Interpreter

+ * Copyright (C) 2001-2004 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

+ *

+ * $Header$

+ */

+

+#include "stdafx.h"

+#include "sound/mpu401.h"

+#include "common/util.h"

+

+#ifndef DISABLE_TAPWAVE

+

+#include "TwTraps.h"

+#include "TwMidi.h"

+

+

+class MidiDriver_Zodiac:public MidiDriver_MPU401 {

+public:

+	MidiDriver_Zodiac();

+	int open();

+	void close();

+	void send(uint32 b);

+	void sysEx(byte *msg, uint16 length);

+

+private:

+	TwMidiHandle _midiHandle;

+	Boolean _isOpen;

+	Int32 _oldVol;

+ };

+

+MidiDriver_Zodiac::MidiDriver_Zodiac() {

+	_isOpen = false;

+	_midiHandle = 0;

+}

+

+int MidiDriver_Zodiac::open() {

+	Err e;

+

+	if (e = TwMidiOpen(&_midiHandle))

+ 		return MERR_DEVICE_NOT_AVAILABLE;

+

+	TwMidiGetMasterVolume(&_oldVol);

+	TwMidiSetMasterVolume(twMidiMaxVolume);

+

+	_isOpen = true;

+	return 0;

+}

+

+void MidiDriver_Zodiac::close() {

+	if (_isOpen) {

+		_isOpen = false;

+		MidiDriver_MPU401::close();

+		

+		TwMidiSetMasterVolume(_oldVol);

+		TwMidiClose(_midiHandle);

+	}

+}

+

+void MidiDriver_Zodiac::send(uint32 b) {

+	if (!_isOpen)

+		return;

+

+	UInt8 midiCmd[4];

+	UInt8 chanID,mdCmd;

+

+	midiCmd[3] = (b & 0xFF000000) >> 24;

+	midiCmd[2] = (b & 0x00FF0000) >> 16;

+	midiCmd[1] = (b & 0x0000FF00) >> 8;

+	midiCmd[0] = (b & 0x000000FF);

+	

+	chanID = (midiCmd[0] & 0x0F) ;

+	mdCmd = midiCmd[0] & 0xF0;

+

+	switch (mdCmd) {

+		case 0x80:	// note off

+			TwMidiNoteOff(_midiHandle, chanID, midiCmd[1], 0);

+			break;

+	

+		case 0x90:	// note on

+			TwMidiNoteOn(_midiHandle, chanID, midiCmd[1], midiCmd[2]);

+			break;

+		

+		case 0xB0:	// control change

+			TwMidiControlChange(_midiHandle, chanID, midiCmd[1], midiCmd[2]);

+			break;

+		

+		case 0xC0:	// progam change

+			TwMidiProgramChange(_midiHandle, chanID, midiCmd[1]);

+			break;

+		

+		case 0xE0:	// pitchBend

+			TwMidiPitchBend(_midiHandle, chanID, (short)(midiCmd[1] | (midiCmd[2] << 8)));

+			break;

+	}

+}

+

+void MidiDriver_Zodiac::sysEx(byte *msg, uint16 length) {

+	TwMidiSysEx(_midiHandle, 0, msg, length);

+}

+

+MidiDriver *MidiDriver_Zodiac_create() {

+	return new MidiDriver_Zodiac();

+}

+

+#endif