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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2003 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/engine.h" // for g_system
#include "common/util.h"
#include "Pa1Lib.h"
class MidiDriver_YamahaPa1:public MidiDriver_MPU401 {
public:
MidiDriver_YamahaPa1();
int open();
void close();
void send(uint32 b);
private:
UInt8 _midiHandle;
Boolean _isOpen;
};
MidiDriver_YamahaPa1::MidiDriver_YamahaPa1() {
_isOpen = false;
_midiHandle = 0;
}
int MidiDriver_YamahaPa1::open() {
if (!(_isOpen = Pa1Lib_midiOpen(NULL, &_midiHandle)))
return MERR_DEVICE_NOT_AVAILABLE;
return 0;
}
void MidiDriver_YamahaPa1::close() {
if (_isOpen) {
_isOpen = false;
MidiDriver_MPU401::close();
for (UInt8 channel = 0; channel < 16; channel++) {
Pa1Lib_midiControlChange(_midiHandle, channel, 120,0); // all sound off
Pa1Lib_midiControlChange(_midiHandle, channel, 121,0); // reset all controller
Pa1Lib_midiControlChange(_midiHandle, channel, 123, 0); // all notes off
}
Pa1Lib_midiClose(_midiHandle);
}
}
void MidiDriver_YamahaPa1::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
Pa1Lib_midiNoteOff(_midiHandle, chanID, midiCmd[1], 0);
break;
case 0x90: // note on
Pa1Lib_midiNoteOn(_midiHandle, chanID, midiCmd[1], midiCmd[2]);
break;
case 0xB0: // control change
Pa1Lib_midiControlChange(_midiHandle, chanID, midiCmd[1], midiCmd[2]);
break;
case 0xC0: // progam change
Pa1Lib_midiProgramChange(_midiHandle, chanID, midiCmd[1]);
break;
case 0xE0: // pitchBend
Pa1Lib_midiPitchBend(_midiHandle, chanID, (short)(midiCmd[1] | (midiCmd[2] << 8)));
break;
}
}
MidiDriver *MidiDriver_YamahaPa1_create() {
return new MidiDriver_YamahaPa1();
}
//////////////////////////////////////////
// thread emu
#include "palm.h"
int MidiDriver_MPU401::midi_driver_thread(void *param) {
MidiDriver_MPU401 *mid = (MidiDriver_MPU401 *)param;
int cur_time;
if (mid->_started_thread) {
UInt8 id = ((OSystem_PALMOS *)g_system)->_threadID;
ThreadEmuPtr thread = &(((OSystem_PALMOS *)g_system)->_thread[id]);
// wait 10 msecs
cur_time = g_system->get_msecs();
if (cur_time - thread->old_time >= 10)
thread->sleep = false;
// if 10 msecs
if (!thread->sleep) {
thread->sleep = true;
while (thread->old_time < cur_time) {
thread->old_time += 10;
if (mid->_timer_proc)
(*(mid->_timer_proc)) (mid->_timer_param);
}
}
}
return 0;
}
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