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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: $
*/
#include "audio/softsynth/fmtowns_pc98/towns_midi.h"
#include "common/textconsole.h"
class MidiChannel_TOWNS : public MidiChannel {
public:
MidiChannel_TOWNS(MidiDriver_TOWNS *driver);
~MidiChannel_TOWNS();
MidiDriver *device() { return _driver; }
byte getNumber() { return 0; }
void release();
void send(uint32 b);
void noteOff(byte note);
void noteOn(byte note, byte velocity);
void programChange(byte program);
void pitchBend(int16 bend);
void controlChange(byte control, byte value);
void pitchBendFactor(byte value);
void priority(byte value);
void sysEx_customInstrument(uint32 type, const byte *instr);
private:
MidiDriver_TOWNS *_driver;
};
MidiChannel_TOWNS::MidiChannel_TOWNS(MidiDriver_TOWNS *driver) : MidiChannel(), _driver(driver) {
}
MidiChannel_TOWNS::~MidiChannel_TOWNS() {
}
void MidiChannel_TOWNS::release() {
}
void MidiChannel_TOWNS::send(uint32 b) {
}
void MidiChannel_TOWNS::noteOff(byte note) {
}
void MidiChannel_TOWNS::noteOn(byte note, byte velocity) {
}
void MidiChannel_TOWNS::programChange(byte program) {
}
void MidiChannel_TOWNS::pitchBend(int16 bend) {
}
void MidiChannel_TOWNS::controlChange(byte control, byte value) {
}
void MidiChannel_TOWNS::pitchBendFactor(byte value) {
}
void MidiChannel_TOWNS::priority(byte value) {
}
void MidiChannel_TOWNS::sysEx_customInstrument(uint32 type, const byte *instr) {
}
MidiDriver_TOWNS::MidiDriver_TOWNS(Audio::Mixer *mixer) : _timerBproc(0), _timerBpara(0), _open(false) {
_intf = new TownsAudioInterface(mixer, this);
_channels = new MidiChannel_TOWNS*[16];
for (int i = 0; i < 16; i++)
_channels[i] = new MidiChannel_TOWNS(this);
_tickCounter = 0;
_curChan = 0;
//unbuffered write: _intf->callback(17, part, reg, val);
//buffered write: _intf->callback(19, part, reg, val);
}
MidiDriver_TOWNS::~MidiDriver_TOWNS() {
close();
delete _intf;
setTimerCallback(0, 0);
for (int i = 0; i < 16; i++)
delete _channels[i];
delete[] _channels;
}
int MidiDriver_TOWNS::open() {
if (_open)
return MERR_ALREADY_OPEN;
if (!_intf->init())
return MERR_CANNOT_CONNECT;
_intf->callback(0);
_intf->callback(21, 255, 1);
_intf->callback(21, 0, 1);
_intf->callback(22, 255, 221);
_intf->callback(33, 8);
_intf->setSoundEffectChanMask(~0x3f);
_open = true;
return 0;
}
void MidiDriver_TOWNS::close() {
_open = false;
}
void MidiDriver_TOWNS::send(uint32 b) {
byte param2 = (b >> 16) & 0xFF;
byte param1 = (b >> 8) & 0xFF;
byte cmd = b & 0xF0;
/*AdLibPart *part;
if (chan == 9)
part = &_percussion;
else**/
MidiChannel_TOWNS *c = _channels[b & 0x0F];
switch (cmd) {
case 0x80:
//part->noteOff(param1);
break;
case 0x90:
//part->noteOn(param1, param2);
if (param2)
c->noteOn(param1, param2);
else
c->noteOff(param1);
break;
case 0xB0:
// supported: 1, 7, 0x40
c->controlChange(param1, param2);
break;
case 0xC0:
c->programChange(param1);
break;
case 0xE0:
//part->pitchBend((param1 | (param2 << 7)) - 0x2000);
c->pitchBend((param1 | (param2 << 7)) - 0x2000);
break;
case 0xF0:
warning("MidiDriver_ADLIB: Receiving SysEx command on a send() call");
break;
default:
break;
}
}
void MidiDriver_TOWNS::setTimerCallback(void *timer_param, Common::TimerManager::TimerProc timer_proc) {
_timerBproc = timer_proc;
_timerBpara = timer_param;
}
uint32 MidiDriver_TOWNS::getBaseTempo() {
return 0;
}
MidiChannel *MidiDriver_TOWNS::allocateChannel() {
MidiChannel *res = 0;
for (int i = 0; i < 6; i++) {
if (++_curChan == 6)
_curChan = 0;
//if (_channels[i]-> //// )
// return _channels[i];
}
//if (res)
// res->noteOff();
return res;
}
MidiChannel *MidiDriver_TOWNS::getPercussionChannel() {
return 0;
}
void MidiDriver_TOWNS::timerCallback(int timerId) {
if (!_open)
return;
switch (timerId) {
case 1:
if (_timerBproc) {
_timerBproc(_timerBpara);
_tickCounter += 10000;
while (_tickCounter >= 4167) {
_tickCounter -= 4167;
//_timerBproc(_timerBpara);
}
}
break;
default:
break;
}
}
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