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author | Joost Peters | 2003-12-14 00:33:21 +0000 |
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committer | Joost Peters | 2003-12-14 00:33:21 +0000 |
commit | 1de28a2931b9f48f7af12595d4e04554d25de578 (patch) | |
tree | 3350e7d718f975e02572530fc495d0c608a3c299 /queen/music.cpp | |
parent | 80aac33327181ae281ea0d85bfec326583f3b55a (diff) | |
download | scummvm-rg350-1de28a2931b9f48f7af12595d4e04554d25de578.tar.gz scummvm-rg350-1de28a2931b9f48f7af12595d4e04554d25de578.tar.bz2 scummvm-rg350-1de28a2931b9f48f7af12595d4e04554d25de578.zip |
Initial (Roland) Music support; a lot of stuff is still missing and/or incomplete.
svn-id: r11621
Diffstat (limited to 'queen/music.cpp')
-rw-r--r-- | queen/music.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/queen/music.cpp b/queen/music.cpp new file mode 100644 index 0000000000..592b196c0b --- /dev/null +++ b/queen/music.cpp @@ -0,0 +1,80 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2003 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) : _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((void *)_midi, _midi->timerCallback); + + _musicData = vm->resource()->loadFile("AQ.RL", 0, NULL); + _musicDataSize = vm->resource()->fileSize("AQ.RL"); + _numSongs = READ_LE_UINT16(_musicData); + } + + Music::~Music() { + stopSong(); + _midi->unloadMusic(); + delete _midi; + delete[] _musicData; + } + + void Music::playSong(uint16 songNum) { + if (_loop) + _midi->property(MidiParser::mpAutoLoop, 1); + else + _midi->property(MidiParser::mpAutoLoop, 0); + + _midi->loadMusic(_musicData + songOffset(songNum), songLength(songNum)); + _midi->setTrack(0); + _driver->setTimerCallback((void *)_midi, _midi->timerCallback); + } + + void Music::stopSong() { + _driver->setTimerCallback(NULL, NULL); + } + + 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 |