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author | Max Horn | 2006-02-11 22:45:04 +0000 |
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committer | Max Horn | 2006-02-11 22:45:04 +0000 |
commit | 26ee630756ebdd7c96bccede0881a8c8b98e8f2b (patch) | |
tree | 26e378d5cf990a2b81c2c96e9e683a7f333b62e8 /sky/music/adlibmusic.cpp | |
parent | 2a9a0d4211b1ea5723f1409d91cb95de8984429e (diff) | |
download | scummvm-rg350-26ee630756ebdd7c96bccede0881a8c8b98e8f2b.tar.gz scummvm-rg350-26ee630756ebdd7c96bccede0881a8c8b98e8f2b.tar.bz2 scummvm-rg350-26ee630756ebdd7c96bccede0881a8c8b98e8f2b.zip |
Moved engines to the new engines/ directory
svn-id: r20582
Diffstat (limited to 'sky/music/adlibmusic.cpp')
-rw-r--r-- | sky/music/adlibmusic.cpp | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/sky/music/adlibmusic.cpp b/sky/music/adlibmusic.cpp deleted file mode 100644 index e7ee4ecb6d..0000000000 --- a/sky/music/adlibmusic.cpp +++ /dev/null @@ -1,121 +0,0 @@ -/* ScummVM - Scumm Interpreter - * Copyright (C) 2003-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL$ - * $Id$ - * - */ - -#include "sky/music/adlibmusic.h" -#include "sky/music/adlibchannel.h" -#include "sound/mixer.h" -#include "sky/sky.h" - -namespace Sky { - -AdlibMusic::AdlibMusic(Audio::Mixer *pMixer, Disk *pDisk) - : MusicBase(pDisk) { - - _driverFileBase = 60202; - _mixer = pMixer; - _sampleRate = pMixer->getOutputRate(); - - _opl = makeAdlibOPL(_sampleRate); - - _mixer->setupPremix(this); -} - -AdlibMusic::~AdlibMusic(void) { - - _mixer->setupPremix(0); -} - -void AdlibMusic::premixerCall(int16 *data, uint len) { - - if (_musicData == NULL) { - // no music loaded - memset(data, 0, 2 * len * sizeof(int16)); - } else if ((_currentMusic == 0) || (_numberOfChannels == 0)) { - // music loaded but not played as of yet - memset(data, 0, 2 * len * sizeof(int16)); - // poll anyways as pollMusic() can activate the music - pollMusic(); - _nextMusicPoll = _sampleRate/50; - } else { - uint32 render; - int16 *origData = data; - uint origLen = len; - while (len) { - render = (len > _nextMusicPoll) ? (_nextMusicPoll) : (len); - len -= render; - _nextMusicPoll -= render; - YM3812UpdateOne(_opl, data, render); - data += render; - if (_nextMusicPoll == 0) { - pollMusic(); - _nextMusicPoll = _sampleRate/50; - } - } - - // Convert mono data to stereo - for (int i = (origLen - 1); i >= 0; i--) { - origData[2 * i] = origData[2 * i + 1] = origData[i]; - } - } -} - -void AdlibMusic::setupPointers(void) { - - if (SkyEngine::_systemVars.gameVersion == 109) { - // disk demo uses a different adlib driver version, some offsets have changed - //_musicDataLoc = (_musicData[0x11CC] << 8) | _musicData[0x11CB]; - //_initSequence = _musicData + 0xEC8; - - _musicDataLoc = READ_LE_UINT16(_musicData + 0x1200); - _initSequence = _musicData + 0xEFB; - } else if (SkyEngine::_systemVars.gameVersion == 267) { - _musicDataLoc = READ_LE_UINT16(_musicData + 0x11F7); - _initSequence = _musicData + 0xE87; - } else { - _musicDataLoc = READ_LE_UINT16(_musicData + 0x1201); - _initSequence = _musicData + 0xE91; - } - _nextMusicPoll = 0; -} - -void AdlibMusic::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 AdlibChannel(_opl, _musicData, chDataStart); - _channels[cnt]->updateVolume(_musicVolume); - } -} - -void AdlibMusic::startDriver(void) { - - uint16 cnt = 0; - while (_initSequence[cnt] || _initSequence[cnt+1]) { - OPLWriteReg (_opl, _initSequence[cnt], _initSequence[cnt+1]); - cnt += 2; - } - _allowedCommands = 0xD; -} - -} // End of namespace Sky |