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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001/2002 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.
*
* $Header$
*/
#if defined(__MORPHOS__)
#include <exec/memory.h>
#include <exec/types.h>
#include <devices/etude.h>
#include <clib/alib_protos.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/etude.h>
#include "stdafx.h"
#include "sound/mpu401.h"
#include "common/engine.h" // For warning/error/debug
#include "morphos.h"
#include "morphos_sound.h"
/*
* MorphOS MIDI driver for Etude device
*/
class MidiDriver_ETUDE : public MidiDriver_MPU401 {
public:
MidiDriver_ETUDE();
int open();
void close();
void send(uint32 b);
private:
bool _isOpen;
};
MidiDriver_ETUDE::MidiDriver_ETUDE()
{
_isOpen = false;
}
int MidiDriver_ETUDE::open()
{
if (_isOpen)
return MERR_ALREADY_OPEN;
_isOpen = true;
if (!init_morphos_music(0, ETUDEF_DIRECT))
return MERR_DEVICE_NOT_AVAILABLE;
return 0;
}
void MidiDriver_ETUDE::close()
{
MidiDriver_MPU401::close();
exit_morphos_music();
_isOpen = false;
}
void MidiDriver_ETUDE::send(uint32 b)
{
if (!_isOpen)
error("MidiDriver_ETUDE::send called but driver was no opened");
if (ScummMidiRequest) {
ULONG midi_data = READ_LE_UINT32(&b);
SendShortMidiMsg(ScummMidiRequest, midi_data);
}
}
extern MidiDriver* EtudeMidiDriver;
MidiDriver *MidiDriver_ETUDE_create()
{
if (!EtudeMidiDriver)
EtudeMidiDriver = new MidiDriver_ETUDE();
return EtudeMidiDriver;
}
int MidiDriver_MPU401::midi_driver_thread(void *param)
{
MidiDriver_MPU401 *mid = (MidiDriver_MPU401 *)param;
int old_time, cur_time;
MsgPort *music_timer_port = NULL;
timerequest *music_timer_request = NULL;
ObtainSemaphore(&ScummMusicThreadRunning);
if (!OSystem_MorphOS::OpenATimer(&music_timer_port, (IORequest **) &music_timer_request, UNIT_MICROHZ, false)) {
warning("Could not open a timer - music will not play");
Wait(SIGBREAKF_CTRL_C);
}
else {
old_time = g_system->get_msecs();
for (;;) {
music_timer_request->tr_node.io_Command = TR_ADDREQUEST;
music_timer_request->tr_time.tv_secs = 0;
music_timer_request->tr_time.tv_micro = 10000;
DoIO((struct IORequest *)music_timer_request);
if (CheckSignal(SIGBREAKF_CTRL_C))
break;
cur_time = g_system->get_msecs();
while (old_time < cur_time) {
old_time += 10;
if (mid->_timer_proc)
(*(mid->_timer_proc)) (mid->_timer_param);
}
}
}
ReleaseSemaphore(&ScummMusicThreadRunning);
RemTask(NULL);
return 0;
}
#endif
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