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author | Robert Göffringmann | 2003-05-03 02:59:45 +0000 |
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committer | Robert Göffringmann | 2003-05-03 02:59:45 +0000 |
commit | 180582765563cd2c2f0dd81a3e189c865ac0741d (patch) | |
tree | 2f0db1b24d5e651344ed36a738e0e368edfd358d /sky/gmmusic.cpp | |
parent | 54a166582f457ff352477637b0b62fe632c301c6 (diff) | |
download | scummvm-rg350-180582765563cd2c2f0dd81a3e189c865ac0741d.tar.gz scummvm-rg350-180582765563cd2c2f0dd81a3e189c865ac0741d.tar.bz2 scummvm-rg350-180582765563cd2c2f0dd81a3e189c865ac0741d.zip |
changed structure of musicdriver, added General Midi music support.
mapping table mt32->gm needs a lot of changes.
svn-id: r7273
Diffstat (limited to 'sky/gmmusic.cpp')
-rw-r--r-- | sky/gmmusic.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/sky/gmmusic.cpp b/sky/gmmusic.cpp new file mode 100644 index 0000000000..2b0e5f45ad --- /dev/null +++ b/sky/gmmusic.cpp @@ -0,0 +1,78 @@ +/* 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 "sky/gmmusic.h" + +void SkyGmMusic::passTimerFunc(void *param) { + + ((SkyGmMusic*)param)->timerCall(); +} + +SkyGmMusic::SkyGmMusic(MidiDriver *pMidiDrv, SkyDisk *pSkyDisk) + : SkyMusicBase(pSkyDisk) { + + _driverFileBase = 60200; + _midiDrv = pMidiDrv; + int midiRes = _midiDrv->open(); + if (midiRes != 0) { + printf("Error code: %d\n",midiRes); + } + _midiDrv->setTimerCallback(this, passTimerFunc); + ignoreNextPoll = false; +} + +SkyGmMusic::~SkyGmMusic(void) { + + _midiDrv->close(); + _midiDrv->setTimerCallback(NULL, NULL); + delete _midiDrv; +} + +void SkyGmMusic::timerCall(void) { + + // midi driver polls hundred times per sec. We only want 50 times. + ignoreNextPoll = !ignoreNextPoll; + if (!ignoreNextPoll) return; + + if (_musicData != NULL) + pollMusic(); +} + +void SkyGmMusic::setupPointers(void) { + + _musicDataLoc = (_musicData[0x7DD] << 8) | _musicData[0x7DC]; + _sysExSequence = ((_musicData[0x7E1] << 8) | _musicData[0x7E0]) + _musicData; +} + +void SkyGmMusic::setupChannels(uint8 *channelData) { + + _numberOfChannels = channelData[0]; + channelData++; + for (uint8 cnt = 0; cnt < _numberOfChannels; cnt++) { + uint16 chDataStart = ((channelData[(cnt << 1) | 1] << 8) | channelData[cnt << 1]) + _musicDataLoc; + _channels[cnt] = new SkyGmChannel(_musicData, chDataStart, _midiDrv); + } +} + +void SkyGmMusic::startDriver(void) { + + _midiDrv->send(0xFF); +} |