mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-15 06:08:35 +00:00
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2003-2004 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 "queen/music.h"
|
|
#include "queen/queen.h"
|
|
#include "queen/resource.h"
|
|
|
|
#include "sound/mididrv.h"
|
|
#include "sound/midiparser.h"
|
|
|
|
namespace Queen {
|
|
|
|
Music::Music(MidiDriver *driver, QueenEngine *vm) : _isPlaying(false), _loop(false), _driver(driver) {
|
|
_midi = MidiParser::createParser_SMF();
|
|
_midi->setMidiDriver(_driver);
|
|
int ret = _driver->open();
|
|
if (ret)
|
|
warning("MIDI Player init failed: \"%s\"", _driver->getErrorName(ret));
|
|
_midi->setTimerRate(_driver->getBaseTempo());
|
|
_driver->setTimerCallback(this, myTimerProc);
|
|
|
|
if (vm->resource()->isDemo()) {
|
|
_musicData = vm->resource()->loadFile("AQ8.RL", 0, NULL);
|
|
_musicDataSize = vm->resource()->fileSize("AQ8.RL");
|
|
} else {
|
|
_musicData = vm->resource()->loadFile("AQ.RL", 0, NULL);
|
|
_musicDataSize = vm->resource()->fileSize("AQ.RL");
|
|
}
|
|
_numSongs = READ_LE_UINT16(_musicData);
|
|
}
|
|
|
|
Music::~Music() {
|
|
_driver->setTimerCallback(NULL, NULL);
|
|
_midi->unloadMusic();
|
|
_driver->close();
|
|
delete _midi;
|
|
delete[] _musicData;
|
|
}
|
|
|
|
void Music::playSong(uint16 songNum) {
|
|
if (_loop)
|
|
_midi->property(MidiParser::mpAutoLoop, 1);
|
|
else
|
|
_midi->property(MidiParser::mpAutoLoop, 0);
|
|
|
|
_isPlaying = true;
|
|
_midi->loadMusic(_musicData + songOffset(songNum), songLength(songNum));
|
|
_midi->setTrack(0);
|
|
}
|
|
|
|
void Music::stopSong() {
|
|
_isPlaying = false;
|
|
_midi->unloadMusic();
|
|
}
|
|
|
|
void Music::myTimerProc(void *refCon) {
|
|
Music *music = (Music *)refCon;
|
|
if (music->_isPlaying)
|
|
music->_midi->onTimer();
|
|
}
|
|
|
|
uint32 Music::songOffset(uint16 songNum) {
|
|
uint16 offsLo = READ_LE_UINT16(_musicData + (songNum * 4) + 2);
|
|
uint16 offsHi = READ_LE_UINT16(_musicData + (songNum * 4) + 4);
|
|
return (offsHi << 4) | offsLo;
|
|
}
|
|
|
|
uint32 Music::songLength(uint16 songNum) {
|
|
if (songNum < _numSongs)
|
|
return (songOffset(songNum + 1) - songOffset(songNum));
|
|
return (_musicDataSize - songOffset(songNum));
|
|
}
|
|
|
|
} // End of namespace Queen
|