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#include "stdafx.h"
#include "sound/mpu401.h"
#include "common/engine.h" // for warning/error/debug
#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;
Pa1Lib_midiControlChange(_midiHandle,0,120,0); // all sound off
Pa1Lib_midiControlChange(_midiHandle,0,121,0); // reset all controller
Pa1Lib_midiControlChange(_midiHandle,0,123,0); // all not off
return 0;
}
void MidiDriver_YamahaPa1::close()
{
if (_isOpen) {
Pa1Lib_midiControlChange(_midiHandle,0,120,0); // all sound off
Pa1Lib_midiControlChange(_midiHandle,0,121,0); // reset all controller
Pa1Lib_midiControlChange(_midiHandle,0,123,0); // all not 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
static struct {
bool active;
int old_time;
int sleep;
} g_thread;
static bool t_first_call = false;
int MidiDriver_MPU401::midi_driver_thread(void *param) {
MidiDriver_MPU401 *mid = (MidiDriver_MPU401 *)param;
int cur_time;
if (!t_first_call)
{
g_thread.active = false;
g_thread.old_time = g_system->get_msecs();
g_thread.sleep = 10;
t_first_call = true;
}
cur_time = g_system->get_msecs();
if (cur_time - g_thread.old_time >= g_thread.sleep)
g_thread.active = true;
if (g_thread.active)
{
cur_time = g_system->get_msecs();
while (g_thread.old_time < cur_time) {
g_thread.old_time += 10;
// Don't use mid->_se_on_timer()
// We must come in through IMuseMonitor to protect
// against conflicts with script access to IMuse.
if (mid->_timer_proc)
(*(mid->_timer_proc)) (mid->_timer_param);
}
g_thread.active = false;
}
return 0;
}
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