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Diffstat (limited to 'engines/cine/sound.cpp')
| -rw-r--r-- | engines/cine/sound.cpp | 849 |
1 files changed, 849 insertions, 0 deletions
diff --git a/engines/cine/sound.cpp b/engines/cine/sound.cpp new file mode 100644 index 0000000000..9a8d073c51 --- /dev/null +++ b/engines/cine/sound.cpp @@ -0,0 +1,849 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2006 The ScummVM project + * + * cinE Engine is (C) 2004-2005 by CinE Team + * + * 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 "common/stdafx.h" +#include "common/endian.h" +#include "common/file.h" +#include "common/system.h" + +#include "cine/cine.h" +#include "cine/sound.h" + +#include "sound/audiostream.h" +#include "sound/fmopl.h" +#include "sound/mods/soundfx.h" + +namespace Cine { + +class PCSoundDriver { +public: + typedef void (*UpdateCallback)(void *); + + virtual ~PCSoundDriver() {} + + virtual void setupChannel(int channel, const byte *data, int instrument, int volume) = 0; + virtual void setChannelFrequency(int channel, int frequency) = 0; + virtual void stopChannel(int channel) = 0; + virtual void playSample(const byte *data, int size, int channel, int volume) = 0; + virtual void stopAll() = 0; + virtual const char *getInstrumentExtension() const { return ""; } + + void setUpdateCallback(UpdateCallback upCb, void *ref); + void resetChannel(int channel); + void findNote(int freq, int *note, int *oct) const; + +protected: + UpdateCallback _upCb; + void *_upRef; + + static const int _noteTable[]; + static const int _noteTableCount; +}; + +const int PCSoundDriver::_noteTable[] = { + 0xEEE, 0xE17, 0xD4D, 0xC8C, 0xBD9, 0xB2F, 0xA8E, 0x9F7, + 0x967, 0x8E0, 0x861, 0x7E8, 0x777, 0x70B, 0x6A6, 0x647, + 0x5EC, 0x597, 0x547, 0x4FB, 0x4B3, 0x470, 0x430, 0x3F4, + 0x3BB, 0x385, 0x353, 0x323, 0x2F6, 0x2CB, 0x2A3, 0x27D, + 0x259, 0x238, 0x218, 0x1FA, 0x1DD, 0x1C2, 0x1A9, 0x191, + 0x17B, 0x165, 0x151, 0x13E, 0x12C, 0x11C, 0x10C, 0x0FD, + 0x0EE, 0x0E1, 0x0D4, 0x0C8, 0x0BD, 0x0B2, 0x0A8, 0x09F, + 0x096, 0x08E, 0x086, 0x07E, 0x077, 0x070, 0x06A, 0x064, + 0x05E, 0x059, 0x054, 0x04F, 0x04B, 0x047, 0x043, 0x03F, + 0x03B, 0x038, 0x035, 0x032, 0x02F, 0x02C, 0x02A, 0x027, + 0x025, 0x023, 0x021, 0x01F, 0x01D, 0x01C, 0x01A, 0x019, + 0x017, 0x016, 0x015, 0x013, 0x012, 0x011, 0x010, 0x00F +}; + +const int PCSoundDriver::_noteTableCount = ARRAYSIZE(_noteTable); + +struct AdlibRegisterSoundInstrument { + uint16 vibrato; + uint16 attackDecay; + uint16 sustainRelease; + uint16 feedbackStrength; + uint16 keyScaling; + uint16 outputLevel; + uint16 freqMod; +}; + +struct AdlibSoundInstrument { + byte mode; + byte channel; + AdlibRegisterSoundInstrument regMod; + AdlibRegisterSoundInstrument regCar; + byte waveSelectMod; + byte waveSelectCar; + byte amDepth; +}; + +class AdlibSoundDriver : public PCSoundDriver, Audio::AudioStream { +public: + AdlibSoundDriver(Audio::Mixer *mixer); + virtual ~AdlibSoundDriver(); + + // PCSoundDriver interface + virtual void setupChannel(int channel, const byte *data, int instrument, int volume); + virtual void stopChannel(int channel); + virtual void stopAll(); + + // AudioStream interface + virtual int readBuffer(int16 *buffer, const int numSamples); + virtual bool isStereo() const { return false; } + virtual bool endOfData() const { return false; } + virtual int getRate() const { return _sampleRate; } + + void initCard(); + void update(int16 *buf, int len); + void setupInstrument(const byte *data, int channel); + void loadRegisterInstrument(const byte *data, AdlibRegisterSoundInstrument *reg); + virtual void loadInstrument(const byte *data, AdlibSoundInstrument *asi) = 0; + +protected: + FM_OPL *_opl; + int _sampleRate; + Audio::Mixer *_mixer; + Audio::SoundHandle _soundHandle; + + byte _vibrato; + int _channelsVolumeTable[4]; + AdlibSoundInstrument _instrumentsTable[4]; + + static const int _freqTable[]; + static const int _freqTableCount; + static const int _operatorsTable[]; + static const int _operatorsTableCount; + static const int _voiceOperatorsTable[]; + static const int _voiceOperatorsTableCount; +}; + +const int AdlibSoundDriver::_freqTable[] = { + 0x157, 0x16C, 0x181, 0x198, 0x1B1, 0x1CB, + 0x1E6, 0x203, 0x222, 0x243, 0x266, 0x28A +}; + +const int AdlibSoundDriver::_freqTableCount = ARRAYSIZE(_freqTable); + +const int AdlibSoundDriver::_operatorsTable[] = { + 0, 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21 +}; + +const int AdlibSoundDriver::_operatorsTableCount = ARRAYSIZE(_operatorsTable); + +const int AdlibSoundDriver::_voiceOperatorsTable[] = { + 0, 3, 1, 4, 2, 5, 6, 9, 7, 10, 8, 11, 12, 15, 16, 16, 14, 14, 17, 17, 13, 13 +}; + +const int AdlibSoundDriver::_voiceOperatorsTableCount = ARRAYSIZE(_voiceOperatorsTable); + +// Future Wars Adlib driver +class AdlibSoundDriverINS : public AdlibSoundDriver { +public: + AdlibSoundDriverINS(Audio::Mixer *mixer) : AdlibSoundDriver(mixer) {} + virtual const char *getInstrumentExtension() const { return ".INS"; } + virtual void loadInstrument(const byte *data, AdlibSoundInstrument *asi); + virtual void setChannelFrequency(int channel, int frequency); + virtual void playSample(const byte *data, int size, int channel, int volume); +}; + +// Operation Stealth Adlib driver +class AdlibSoundDriverADL : public AdlibSoundDriver { +public: + AdlibSoundDriverADL(Audio::Mixer *mixer) : AdlibSoundDriver(mixer) {} + virtual const char *getInstrumentExtension() const { return ".ADL"; } + virtual void loadInstrument(const byte *data, AdlibSoundInstrument *asi); + virtual void setChannelFrequency(int channel, int frequency); + virtual void playSample(const byte *data, int size, int channel, int volume); +}; + +class PCSoundFxPlayer { +public: + + PCSoundFxPlayer(PCSoundDriver *driver); + ~PCSoundFxPlayer(); + + bool load(const char *song); + void play(); + void stop(); + void fadeOut(); + + static void updateCallback(void *ref); + + enum { + NUM_INSTRUMENTS = 15, + NUM_CHANNELS = 4 + }; + +private: + + void update(); + void handleEvents(); + void handlePattern(int channel, const byte *patternData); + void unload(); + + bool _playing; + int _currentPos; + int _currentOrder; + int _numOrders; + int _eventsDelay; + int _fadeOutCounter; + int _updateTicksCounter; + int _instrumentsChannelTable[NUM_CHANNELS]; + byte *_sfxData; + byte *_instrumentsData[NUM_INSTRUMENTS]; + PCSoundDriver *_driver; +}; + + +void PCSoundDriver::setUpdateCallback(UpdateCallback upCb, void *ref) { + _upCb = upCb; + _upRef = ref; +} + +void PCSoundDriver::findNote(int freq, int *note, int *oct) const { + *note = _noteTableCount - 1; + for (int i = 0; i < _noteTableCount; ++i) { + if (_noteTable[i] <= freq) { + *note = i; + break; + } + } + *oct = *note / 12; +} + +void PCSoundDriver::resetChannel(int channel) { + stopChannel(channel); + stopAll(); +} + +AdlibSoundDriver::AdlibSoundDriver(Audio::Mixer *mixer) + : _mixer(mixer) { + _sampleRate = _mixer->getOutputRate(); + _opl = makeAdlibOPL(_sampleRate); + memset(_channelsVolumeTable, 0, sizeof(_channelsVolumeTable)); + memset(_instrumentsTable, 0, sizeof(_instrumentsTable)); + initCard(); + _mixer->playInputStream(Audio::Mixer::kPlainSoundType, &_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, false, true); +} + +AdlibSoundDriver::~AdlibSoundDriver() { + _mixer->stopHandle(_soundHandle); +} + +void AdlibSoundDriver::setupChannel(int channel, const byte *data, int instrument, int volume) { + assert(channel < 4); + if (data) { + if (volume > 80) { + volume = 80; + } else if (volume < 0) { + volume = 0; + } + volume += volume / 4; + if (volume > 127) { + volume = 127; + } + _channelsVolumeTable[channel] = volume; + setupInstrument(data, channel); + } +} + +void AdlibSoundDriver::stopChannel(int channel) { + assert(channel < 4); + AdlibSoundInstrument *ins = &_instrumentsTable[channel]; + if (ins->mode != 0 && ins->channel == 6) { + channel = 6; + } + if (ins->mode == 0 || channel == 6) { + OPLWriteReg(_opl, 0xB0 | channel, 0); + } + if (ins->mode != 0) { + _vibrato &= ~(1 << (10 - ins->channel)); + OPLWriteReg(_opl, 0xBD, _vibrato); + } +} + +void AdlibSoundDriver::stopAll() { + int i; + for (i = 0; i < 18; ++i) { + OPLWriteReg(_opl, 0x40 | _operatorsTable[i], 63); + } + for (i = 0; i < 9; ++i) { + OPLWriteReg(_opl, 0xB0 | i, 0); + } + OPLWriteReg(_opl, 0xBD, 0); +} + +int AdlibSoundDriver::readBuffer(int16 *buffer, const int numSamples) { + update(buffer, numSamples); + return numSamples; +} + +void AdlibSoundDriver::initCard() { + _vibrato = 0x20; + OPLWriteReg(_opl, 0xBD, _vibrato); + OPLWriteReg(_opl, 0x08, 0x40); + + int i; + for (i = 0; i < 18; ++i) { + OPLWriteReg(_opl, 0x40 | _operatorsTable[i], 0); + } + for (i = 0; i < 9; ++i) { + OPLWriteReg(_opl, 0xB0 | i, 0); + } + for (i = 0; i < 9; ++i) { + OPLWriteReg(_opl, 0xC0 | i, 0); + } + for (i = 0; i < 18; ++i) { + OPLWriteReg(_opl, 0x60 | _operatorsTable[i], 0); + } + for (i = 0; i < 18; ++i) { + OPLWriteReg(_opl, 0x80 | _operatorsTable[i], 0); + } + for (i = 0; i < 18; ++i) { + OPLWriteReg(_opl, 0x20 | _operatorsTable[i], 0); + } + for (i = 0; i < 18; ++i) { + OPLWriteReg(_opl, 0xE0 | _operatorsTable[i], 0); + } + + OPLWriteReg(_opl, 1, 0x20); + OPLWriteReg(_opl, 1, 0); +} + +void AdlibSoundDriver::update(int16 *buf, int len) { + static int samplesLeft = 0; + while (len != 0) { + int count = samplesLeft; + if (count > len) { + count = len; + } + samplesLeft -= count; + len -= count; + YM3812UpdateOne(_opl, buf, count); + if (samplesLeft == 0) { + if (_upCb) { + (*_upCb)(_upRef); + } + samplesLeft = _sampleRate / 50; + } + buf += count; + } +} + +void AdlibSoundDriver::setupInstrument(const byte *data, int channel) { + assert(channel < 4); + AdlibSoundInstrument *ins = &_instrumentsTable[channel]; + loadInstrument(data, ins); + + int mod, car, tmp; + const AdlibRegisterSoundInstrument *reg; + + if (ins->mode != 0) { + mod = _operatorsTable[_voiceOperatorsTable[2 * ins->channel + 0]]; + car = _operatorsTable[_voiceOperatorsTable[2 * ins->channel + 1]]; + } else { + mod = _operatorsTable[_voiceOperatorsTable[2 * channel + 0]]; + car = _operatorsTable[_voiceOperatorsTable[2 * channel + 1]]; + } + + if (ins->mode == 0 || ins->channel == 6) { + reg = &ins->regMod; + OPLWriteReg(_opl, 0x20 | mod, reg->vibrato); + if (reg->freqMod) { + tmp = reg->outputLevel & 0x3F; + } else { + tmp = (63 - (reg->outputLevel & 0x3F)) * _channelsVolumeTable[channel]; + tmp = 63 - (2 * tmp + 127) / (2 * 127); + } + OPLWriteReg(_opl, 0x40 | mod, tmp | (reg->keyScaling << 6)); + OPLWriteReg(_opl, 0x60 | mod, reg->attackDecay); + OPLWriteReg(_opl, 0x80 | mod, reg->sustainRelease); + if (ins->mode != 0) { + OPLWriteReg(_opl, 0xC0 | ins->channel, reg->feedbackStrength); + } else { + OPLWriteReg(_opl, 0xC0 | channel, reg->feedbackStrength); + } + OPLWriteReg(_opl, 0xE0 | mod, ins->waveSelectMod); + } + + reg = &ins->regCar; + OPLWriteReg(_opl, 0x20 | car, reg->vibrato); + tmp = (63 - (reg->outputLevel & 0x3F)) * _channelsVolumeTable[channel]; + tmp = 63 - (2 * tmp + 127) / (2 * 127); + OPLWriteReg(_opl, 0x40 | car, tmp | (reg->keyScaling << 6)); + OPLWriteReg(_opl, 0x60 | car, reg->attackDecay); + OPLWriteReg(_opl, 0x80 | car, reg->sustainRelease); + OPLWriteReg(_opl, 0xE0 | car, ins->waveSelectCar); +} + +void AdlibSoundDriver::loadRegisterInstrument(const byte *data, AdlibRegisterSoundInstrument *reg) { + reg->vibrato = 0; + if (READ_LE_UINT16(data + 18)) { // amplitude vibrato + reg->vibrato |= 0x80; + } + if (READ_LE_UINT16(data + 20)) { // frequency vibrato + reg->vibrato |= 0x40; + } + if (READ_LE_UINT16(data + 10)) { // sustaining sound + reg->vibrato |= 0x20; + } + if (READ_LE_UINT16(data + 22)) { // envelope scaling + reg->vibrato |= 0x10; + } + reg->vibrato |= READ_LE_UINT16(data + 2) & 0xF; // frequency multiplier + + reg->attackDecay = READ_LE_UINT16(data + 6) << 4; // attack rate + reg->attackDecay |= READ_LE_UINT16(data + 12) & 0xF; // decay rate + + reg->sustainRelease = READ_LE_UINT16(data + 8) << 4; // sustain level + reg->sustainRelease |= READ_LE_UINT16(data + 14) & 0xF; // release rate + + reg->feedbackStrength = READ_LE_UINT16(data + 4) << 1; // feedback + if (READ_LE_UINT16(data + 24) == 0) { // frequency modulation + reg->feedbackStrength |= 1; + } + + reg->keyScaling = READ_LE_UINT16(data); + reg->outputLevel = READ_LE_UINT16(data + 16); + reg->freqMod = READ_LE_UINT16(data + 24); +} + +void AdlibSoundDriverINS::loadInstrument(const byte *data, AdlibSoundInstrument *asi) { + asi->mode = *data++; + asi->channel = *data++; + loadRegisterInstrument(data, &asi->regMod); data += 26; + loadRegisterInstrument(data, &asi->regCar); data += 26; + asi->waveSelectMod = data[0] & 3; data += 2; + asi->waveSelectCar = data[0] & 3; data += 2; + asi->amDepth = data[0]; data += 2; +} + +void AdlibSoundDriverINS::setChannelFrequency(int channel, int frequency) { + assert(channel < 4); + AdlibSoundInstrument *ins = &_instrumentsTable[channel]; + if (ins->mode != 0 && ins->channel == 6) { + channel = 6; + } + if (ins->mode == 0 || ins->channel == 6) { + int freq, note, oct; + findNote(frequency, ¬e, &oct); + if (channel == 6) { + note %= 12; + } + freq = _freqTable[note % 12]; + OPLWriteReg(_opl, 0xA0 | channel, freq); + freq = ((note / 12) << 2) | ((freq & 0x300) >> 8); + if (ins->mode == 0) { + freq |= 0x20; + } + OPLWriteReg(_opl, 0xB0 | channel, freq); + } + if (ins->mode != 0) { + _vibrato |= 1 << (10 - ins->channel); + OPLWriteReg(_opl, 0xBD, _vibrato); + } +} + +void AdlibSoundDriverINS::playSample(const byte *data, int size, int channel, int volume) { + assert(channel < 4); + _channelsVolumeTable[channel] = 127; + resetChannel(channel); + setupInstrument(data + 257, channel); + AdlibSoundInstrument *ins = &_instrumentsTable[channel]; + if (ins->mode != 0 && ins->channel == 6) { + channel = 6; + } + if (ins->mode == 0 || channel == 6) { + uint16 note = 12; + int freq = _freqTable[note % 12]; + OPLWriteReg(_opl, 0xA0 | channel, freq); + freq = ((note / 12) << 2) | ((freq & 0x300) >> 8); + if (ins->mode == 0) { + freq |= 0x20; + } + OPLWriteReg(_opl, 0xB0 | channel, freq); + } + if (ins->mode != 0) { + _vibrato |= 1 << (10 - ins->channel); + OPLWriteReg(_opl, 0xBD, _vibrato); + } +} + +void AdlibSoundDriverADL::loadInstrument(const byte *data, AdlibSoundInstrument *asi) { + asi->mode = *data++; + asi->channel = *data++; + asi->waveSelectMod = *data++ & 3; + asi->waveSelectCar = *data++ & 3; + asi->amDepth = *data++; + ++data; + loadRegisterInstrument(data, &asi->regMod); data += 26; + loadRegisterInstrument(data, &asi->regCar); data += 26; +} + +void AdlibSoundDriverADL::setChannelFrequency(int channel, int frequency) { + assert(channel < 4); + AdlibSoundInstrument *ins = &_instrumentsTable[channel]; + if (ins->mode != 0) { + channel = ins->channel; + if (channel == 9) { + channel = 8; + } else if (channel == 10) { + channel = 7; + } + } + int freq, note, oct; + findNote(frequency, ¬e, &oct); + + note += oct * 12; + if (ins->amDepth) { + note = ins->amDepth; + } + if (note < 0) { + note = 0; + } + + freq = _freqTable[note % 12]; + OPLWriteReg(_opl, 0xA0 | channel, freq); + freq = ((note / 12) << 2) | ((freq & 0x300) >> 8); + if (ins->mode == 0) { + freq |= 0x20; + } + OPLWriteReg(_opl, 0xB0 | channel, freq); + if (ins->mode != 0) { + _vibrato |= 1 << (10 - channel); + OPLWriteReg(_opl, 0xBD, _vibrato); + } +} + +void AdlibSoundDriverADL::playSample(const byte *data, int size, int channel, int volume) { + assert(channel < 4); + _channelsVolumeTable[channel] = 127; + setupInstrument(data, channel); + AdlibSoundInstrument *ins = &_instrumentsTable[channel]; + if (ins->mode != 0 && ins->channel == 6) { + OPLWriteReg(_opl, 0xB0 | channel, 0); + } + if (ins->mode != 0) { + _vibrato &= ~(1 << (10 - ins->channel)); + OPLWriteReg(_opl, 0xBD, _vibrato); + } + if (ins->mode != 0) { + channel = ins->channel; + if (channel == 9) { + channel = 8; + } else if (channel == 10) { + channel = 7; + } + } + uint16 note = 48; + if (ins->amDepth) { + note = ins->amDepth; + } + int freq = _freqTable[note % 12]; + OPLWriteReg(_opl, 0xA0 | channel, freq); + freq = ((note / 12) << 2) | ((freq & 0x300) >> 8); + if (ins->mode == 0) { + freq |= 0x20; + } + OPLWriteReg(_opl, 0xB0 | channel, freq); + if (ins->mode != 0) { + _vibrato |= 1 << (10 - channel); + OPLWriteReg(_opl, 0xBD, _vibrato); + } +} + +PCSoundFxPlayer::PCSoundFxPlayer(PCSoundDriver *driver) + : _playing(false), _driver(driver) { + memset(_instrumentsData, 0, sizeof(_instrumentsData)); + _sfxData = NULL; + _fadeOutCounter = 0; + _driver->setUpdateCallback(updateCallback, this); +} + +PCSoundFxPlayer::~PCSoundFxPlayer() { + _driver->setUpdateCallback(NULL, NULL); + if (_playing) { + stop(); + } +} + +bool PCSoundFxPlayer::load(const char *song) { + debug(9, "PCSoundFxPlayer::load('%s')", song); + + /* stop (w/ fade out) the previous song */ + while (_fadeOutCounter != 0 && _fadeOutCounter < 100) { + g_system->delayMillis(50); + } + _fadeOutCounter = 0; + + if (_playing) { + stop(); + } + + _sfxData = readBundleSoundFile(song); + if (!_sfxData) { + warning("Unable to load soundfx module '%s'", song); + return 0; + } + + for (int i = 0; i < NUM_INSTRUMENTS; ++i) { + _instrumentsData[i] = NULL; + + char instrument[13]; + memcpy(instrument, _sfxData + 20 + i * 30, 12); + instrument[12] = '\0'; + + if (strlen(instrument) != 0) { + char *dot = strrchr(instrument, '.'); + if (dot) { + *dot = '\0'; + } + strcat(instrument, _driver->getInstrumentExtension()); + _instrumentsData[i] = readBundleSoundFile(instrument); + if (!_instrumentsData[i]) { + warning("Unable to load soundfx instrument '%s'", instrument); + } + } + } + return 1; +} + +void PCSoundFxPlayer::play() { + debug(9, "PCSoundFxPlayer::play()"); + if (_sfxData) { + for (int i = 0; i < NUM_CHANNELS; ++i) { + _instrumentsChannelTable[i] = -1; + } + _currentPos = 0; + _currentOrder = 0; + _numOrders = _sfxData[470]; + _eventsDelay = (252 - _sfxData[471]) * 50 / 1060; + _updateTicksCounter = 0; + _playing = true; + } +} + +void PCSoundFxPlayer::stop() { + if (_playing || _fadeOutCounter != 0) { + _fadeOutCounter = 0; + _playing = false; + for (int i = 0; i < NUM_CHANNELS; ++i) { + _driver->stopChannel(i); + } + _driver->stopAll(); + unload(); + } +} + +void PCSoundFxPlayer::fadeOut() { + if (_playing) { + _fadeOutCounter = 1; + _playing = false; + } +} + +void PCSoundFxPlayer::updateCallback(void *ref) { + ((PCSoundFxPlayer *)ref)->update(); +} + +void PCSoundFxPlayer::update() { + if (_playing || (_fadeOutCounter != 0 && _fadeOutCounter < 100)) { + ++_updateTicksCounter; + if (_updateTicksCounter > _eventsDelay) { + handleEvents(); + _updateTicksCounter = 0; + } + } +} + +void PCSoundFxPlayer::handleEvents() { + const byte *patternData = _sfxData + 600; + const byte *orderTable = _sfxData + 472; + uint16 patternNum = orderTable[_currentOrder] * 1024; + + for (int i = 0; i < 4; ++i) { + handlePattern(i, patternData + patternNum + _currentPos); + patternData += 4; + } + + if (_fadeOutCounter != 0 && _fadeOutCounter < 100) { + _fadeOutCounter += 2; + } + _currentPos += 16; + if (_currentPos >= 1024) { + _currentPos = 0; + ++_currentOrder; + if (_currentOrder == _numOrders) { + _currentOrder = 0; + } + } + debug(7, "_currentOrder=%d/%d _currentPos=%d", _currentOrder, _numOrders, _currentPos); +} + +void PCSoundFxPlayer::handlePattern(int channel, const byte *patternData) { + int instrument = patternData[2] >> 4; + if (instrument != 0) { + --instrument; + if (_instrumentsChannelTable[channel] != instrument || _fadeOutCounter != 0) { + _instrumentsChannelTable[channel] = instrument; + const int volume = _sfxData[instrument] - _fadeOutCounter; + _driver->setupChannel(channel, _instrumentsData[instrument], instrument, volume); + } + } + int16 freq = (int16)READ_BE_UINT16(patternData); + if (freq > 0) { + _driver->stopChannel(channel); + _driver->setChannelFrequency(channel, freq); + } +} + +void PCSoundFxPlayer::unload() { + for (int i = 0; i < NUM_INSTRUMENTS; ++i) { + free(_instrumentsData[i]); + _instrumentsData[i] = NULL; + } + free(_sfxData); + _sfxData = NULL; +} + + +PCSound::PCSound(Audio::Mixer *mixer, CineEngine *vm) + : Sound(mixer, vm) { + if (_vm->getGameType() == GType_FW) { + _soundDriver = new AdlibSoundDriverINS(_mixer); + } else { + _soundDriver = new AdlibSoundDriverADL(_mixer); + } + _player = new PCSoundFxPlayer(_soundDriver); +} + +PCSound::~PCSound() { + delete _player; + delete _soundDriver; +} + +void PCSound::loadMusic(const char *name) { + _player->load(name); +} + +void PCSound::playMusic() { + _player->play(); +} + +void PCSound::stopMusic() { + _player->stop(); +} + +void PCSound::fadeOutMusic() { + _player->fadeOut(); +} + +void PCSound::playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat) { + _soundDriver->playSample(data, size, channel, volume); +} + +void PCSound::stopSound(int channel) { + _soundDriver->resetChannel(channel); +} + +PaulaSound::PaulaSound(Audio::Mixer *mixer, CineEngine *vm) + : Sound(mixer, vm) { + memset(_soundChannelsTable, 0, sizeof(_soundChannelsTable)); + _moduleStream = 0; +} + +PaulaSound::~PaulaSound() { +} + +void PaulaSound::loadMusic(const char *name) { + Common::File f; + if (f.open(name)) { + _moduleStream = Audio::makeSoundFxStream(&f, _mixer->getOutputRate()); + } +} + +void PaulaSound::playMusic() { + _mixer->stopHandle(_moduleHandle); + if (_moduleStream) { + _mixer->playInputStream(Audio::Mixer::kMusicSoundType, &_moduleHandle, _moduleStream); + } +} + +void PaulaSound::stopMusic() { + _mixer->stopHandle(_moduleHandle); +} + +void PaulaSound::fadeOutMusic() { + // TODO + stopMusic(); +} + +void PaulaSound::playSound(int channel, int frequency, const uint8 *data, int size, int volumeStep, int stepCount, int volume, int repeat) { + SoundChannel *ch = &_soundChannelsTable[channel]; + ch->frequency = frequency; + ch->data = data; + ch->size = size; + ch->volumeStep = volumeStep; + ch->stepCount = stepCount; + ch->step = stepCount; + ch->repeat = repeat != 0; + ch->volume = volume; +} + +void PaulaSound::stopSound(int channel) { + _mixer->stopHandle(_channelsTable[channel]); +} + +void PaulaSound::update() { + // process volume slides and start sound playback + for (int i = 0; i < NUM_CHANNELS; ++i) { + SoundChannel *ch = &_soundChannelsTable[i]; + if (ch->data) { + if (ch->step) { + --ch->step; + continue; + } + ch->step = ch->stepCount; + ch->volume = CLIP(ch->volume + ch->volumeStep, 0, 63); + playSoundChannel(i, ch->frequency, ch->data, ch->size, ch->volume); + if (!ch->repeat) { + ch->data = 0; + } + } + } +} + +void PaulaSound::playSoundChannel(int channel, int frequency, const uint8 *data, int size, int volume) { + stopSound(channel); + assert(frequency > 0); + frequency = PAULA_FREQ / frequency; + size = MIN<int>(size - SPL_HDR_SIZE, READ_BE_UINT16(data + 4)); + data += SPL_HDR_SIZE; + if (size > 0) { + _mixer->playRaw(Audio::Mixer::kSFXSoundType, &_channelsTable[channel], const_cast<byte *>(data), size, frequency, 0); + _mixer->setChannelVolume(_channelsTable[channel], volume * Audio::Mixer::kMaxChannelVolume / 63); + } +} + +} // End of namespace Cine |