mirror of
https://github.com/libretro/scummvm.git
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136 lines
3.1 KiB
C++
136 lines
3.1 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001/2002 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*/
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#if defined(__MORPHOS__)
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#include <exec/memory.h>
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#include <exec/types.h>
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#include <devices/etude.h>
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#include <clib/alib_protos.h>
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#include <proto/exec.h>
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#include <proto/dos.h>
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#include <proto/etude.h>
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#include "stdafx.h"
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#include "sound/mpu401.h"
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#include "common/engine.h" // For warning/error/debug
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#include "morphos.h"
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#include "morphos_sound.h"
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/*
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* MorphOS MIDI driver for Etude device
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*/
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class MidiDriver_ETUDE : public MidiDriver_MPU401 {
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public:
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MidiDriver_ETUDE();
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int open();
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void close();
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void send(uint32 b);
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private:
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bool _isOpen;
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};
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MidiDriver_ETUDE::MidiDriver_ETUDE()
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{
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_isOpen = false;
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}
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int MidiDriver_ETUDE::open()
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{
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if (_isOpen)
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return MERR_ALREADY_OPEN;
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_isOpen = true;
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if (!init_morphos_music(0, ETUDEF_DIRECT))
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return MERR_DEVICE_NOT_AVAILABLE;
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return 0;
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}
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void MidiDriver_ETUDE::close()
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{
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exit_morphos_music();
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_isOpen = false;
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}
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void MidiDriver_ETUDE::send(uint32 b)
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{
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if (!_isOpen)
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error("MidiDriver_ETUDE::send called but driver was no opened");
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if (ScummMidiRequest) {
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ULONG midi_data = READ_LE_UINT32(&b);
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SendShortMidiMsg(ScummMidiRequest, midi_data);
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}
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}
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extern MidiDriver* EtudeMidiDriver;
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MidiDriver *MidiDriver_ETUDE_create()
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{
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if (!EtudeMidiDriver)
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EtudeMidiDriver = new MidiDriver_ETUDE();
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return EtudeMidiDriver;
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}
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int MidiDriver_MPU401::midi_driver_thread(void *param)
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{
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MidiDriver_MPU401 *mid = (MidiDriver_MPU401 *)param;
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int old_time, cur_time;
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MsgPort *music_timer_port = NULL;
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timerequest *music_timer_request = NULL;
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ObtainSemaphore(&ScummMusicThreadRunning);
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if (!OSystem_MorphOS::OpenATimer(&music_timer_port, (IORequest **) &music_timer_request, UNIT_MICROHZ, false)) {
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warning("Could not open a timer - music will not play");
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Wait(SIGBREAKF_CTRL_C);
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}
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else {
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old_time = g_system->get_msecs();
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for (;;) {
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music_timer_request->tr_node.io_Command = TR_ADDREQUEST;
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music_timer_request->tr_time.tv_secs = 0;
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music_timer_request->tr_time.tv_micro = 10000;
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DoIO((struct IORequest *)music_timer_request);
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if (CheckSignal(SIGBREAKF_CTRL_C))
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break;
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cur_time = g_system->get_msecs();
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while (old_time < cur_time) {
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old_time += 10;
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if (mid->_timer_proc)
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(*(mid->_timer_proc)) (mid->_timer_param);
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}
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}
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}
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ReleaseSemaphore(&ScummMusicThreadRunning);
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RemTask(NULL);
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return 0;
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}
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#endif
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