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|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 "mohawk/sound.h"
#include "common/util.h"
#include "sound/musicplugin.h"
#include "sound/audiostream.h"
#include "sound/decoders/mp3.h"
#include "sound/decoders/raw.h"
#include "sound/decoders/wave.h"
namespace Mohawk {
Sound::Sound(MohawkEngine* vm) : _vm(vm) {
_midiDriver = NULL;
_midiParser = NULL;
_midiData = NULL;
_mystBackgroundSound.type = kFreeHandle;
initMidi();
}
Sound::~Sound() {
stopSound();
stopAllSLST();
stopBackgroundMyst();
if (_midiParser) {
_midiParser->unloadMusic();
delete _midiParser;
}
if (_midiDriver) {
_midiDriver->close();
delete _midiDriver;
}
if (_midiData)
delete[] _midiData;
}
void Sound::initMidi() {
if (!(_vm->getFeatures() & GF_HASMIDI))
return;
// Let's get our MIDI parser/driver
_midiParser = MidiParser::createParser_SMF();
_midiDriver = MidiDriver::createMidi(MidiDriver::detectDevice(MDT_ADLIB|MDT_MIDI));
// Set up everything!
_midiDriver->open();
_midiParser->setMidiDriver(_midiDriver);
_midiParser->setTimerRate(_midiDriver->getBaseTempo());
}
Audio::AudioStream *Sound::makeAudioStream(uint16 id, CueList *cueList) {
Audio::AudioStream *audStream = NULL;
switch (_vm->getGameType()) {
case GType_MYST:
if (_vm->getFeatures() & GF_ME)
audStream = Audio::makeWAVStream(_vm->getResource(ID_MSND, convertMystID(id)), DisposeAfterUse::YES);
else
audStream = makeMohawkWaveStream(_vm->getResource(ID_MSND, id));
break;
case GType_ZOOMBINI:
audStream = makeMohawkWaveStream(_vm->getResource(ID_SND, id));
break;
case GType_LIVINGBOOKSV1:
audStream = makeOldMohawkWaveStream(_vm->getResource(ID_WAV, id));
break;
default:
audStream = makeMohawkWaveStream(_vm->getResource(ID_TWAV, id), cueList);
}
return audStream;
}
Audio::SoundHandle *Sound::playSound(uint16 id, byte volume, bool loop, CueList *cueList) {
debug (0, "Playing sound %d", id);
Audio::AudioStream *audStream = makeAudioStream(id, cueList);
if (audStream) {
SndHandle *handle = getHandle();
handle->type = kUsedHandle;
handle->id = id;
handle->samplesPerSecond = audStream->getRate();
// Set the stream to loop here if it's requested
if (loop)
audStream = Audio::makeLoopingAudioStream((Audio::RewindableAudioStream *)audStream, 0);
_vm->_mixer->playStream(Audio::Mixer::kPlainSoundType, &handle->handle, audStream, -1, volume);
return &handle->handle;
}
return NULL;
}
Audio::SoundHandle *Sound::replaceSoundMyst(uint16 id, byte volume, bool loop) {
debug (0, "Replacing sound %d", id);
// TODO: The original engine does fading
Common::String name = _vm->getResourceName(ID_MSND, convertMystID(id));
// Check if sound is already playing
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle
&& _vm->_mixer->isSoundHandleActive(_handles[i].handle)
&& name.equals(_vm->getResourceName(ID_MSND, convertMystID(_handles[i].id))))
return &_handles[i].handle;
stopSound();
return playSound(id, volume, loop);
}
void Sound::playSoundBlocking(uint16 id, byte volume) {
Audio::SoundHandle *handle = playSound(id, volume);
while (_vm->_mixer->isSoundHandleActive(*handle))
_vm->_system->delayMillis(10);
}
void Sound::playMidi(uint16 id) {
uint32 idTag;
if (!(_vm->getFeatures() & GF_HASMIDI)) {
warning ("Attempting to play MIDI in a game without MIDI");
return;
}
assert(_midiDriver && _midiParser);
_midiParser->unloadMusic();
if (_midiData)
delete[] _midiData;
Common::SeekableReadStream *midi = _vm->getResource(ID_TMID, id);
idTag = midi->readUint32BE();
assert(idTag == ID_MHWK);
midi->readUint32BE(); // Skip size
idTag = midi->readUint32BE();
assert(idTag == ID_MIDI);
_midiData = new byte[midi->size() - 12]; // Enough to cover MThd/Prg#/MTrk
// Read the MThd Data
midi->read(_midiData, 14);
// TODO: Load patches from the Prg# section... skip it for now.
idTag = midi->readUint32BE();
assert(idTag == ID_PRG);
midi->skip(midi->readUint32BE());
// Read the MTrk Data
uint32 mtrkSize = midi->size() - midi->pos();
midi->read(_midiData + 14, mtrkSize);
delete midi;
// Now, play it :)
if (!_midiParser->loadMusic(_midiData, 14 + mtrkSize))
error ("Could not play MIDI music from tMID %04x\n", id);
_midiDriver->setTimerCallback(_midiParser, MidiParser::timerCallback);
}
void Sound::stopMidi() {
_midiParser->unloadMusic();
}
byte Sound::convertRivenVolume(uint16 volume) {
return (volume == 256) ? 255 : volume;
}
void Sound::playSLST(uint16 index, uint16 card) {
Common::SeekableReadStream *slstStream = _vm->getResource(ID_SLST, card);
SLSTRecord slstRecord;
uint16 recordCount = slstStream->readUint16BE();
for (uint16 i = 0; i < recordCount; i++) {
slstRecord.index = slstStream->readUint16BE();
slstRecord.sound_count = slstStream->readUint16BE();
slstRecord.sound_ids = new uint16[slstRecord.sound_count];
for (uint16 j = 0; j < slstRecord.sound_count; j++)
slstRecord.sound_ids[j] = slstStream->readUint16BE();
slstRecord.fade_flags = slstStream->readUint16BE();
slstRecord.loop = slstStream->readUint16BE();
slstRecord.global_volume = slstStream->readUint16BE();
slstRecord.u0 = slstStream->readUint16BE(); // Unknown
if (slstRecord.u0 > 1)
warning("slstRecord.u0: %d non-boolean", slstRecord.u0);
slstRecord.u1 = slstStream->readUint16BE(); // Unknown
if (slstRecord.u1 != 0)
warning("slstRecord.u1: %d non-zero", slstRecord.u1);
slstRecord.volumes = new uint16[slstRecord.sound_count];
slstRecord.balances = new int16[slstRecord.sound_count];
slstRecord.u2 = new uint16[slstRecord.sound_count];
for (uint16 j = 0; j < slstRecord.sound_count; j++)
slstRecord.volumes[j] = slstStream->readUint16BE();
for (uint16 j = 0; j < slstRecord.sound_count; j++)
slstRecord.balances[j] = slstStream->readSint16BE(); // negative = left, 0 = center, positive = right
for (uint16 j = 0; j < slstRecord.sound_count; j++) {
slstRecord.u2[j] = slstStream->readUint16BE(); // Unknown
if (slstRecord.u2[j] != 255 && slstRecord.u2[j] != 256)
warning("slstRecord.u2[%d]: %d not 255 or 256", j, slstRecord.u2[j]);
}
if (slstRecord.index == index) {
playSLST(slstRecord);
delete[] slstRecord.sound_ids;
delete[] slstRecord.volumes;
delete[] slstRecord.balances;
delete[] slstRecord.u2;
delete slstStream;
return;
}
delete[] slstRecord.sound_ids;
delete[] slstRecord.volumes;
delete[] slstRecord.balances;
delete[] slstRecord.u2;
}
delete slstStream;
// If we have no matching entries, we do nothing and just let
// the previous ambient sounds continue.
}
void Sound::playSLST(SLSTRecord slstRecord) {
// End old sounds
for (uint16 i = 0; i < _currentSLSTSounds.size(); i++) {
bool noLongerPlay = true;
for (uint16 j = 0; j < slstRecord.sound_count; j++)
if (_currentSLSTSounds[i].id == slstRecord.sound_ids[j])
noLongerPlay = false;
if (noLongerPlay)
stopSLSTSound(i, (slstRecord.fade_flags & 1) != 0);
}
// Start new sounds
for (uint16 i = 0; i < slstRecord.sound_count; i++) {
bool alreadyPlaying = false;
for (uint16 j = 0; j < _currentSLSTSounds.size(); j++) {
if (_currentSLSTSounds[j].id == slstRecord.sound_ids[i])
alreadyPlaying = true;
}
if (!alreadyPlaying) {
playSLSTSound(slstRecord.sound_ids[i],
(slstRecord.fade_flags & (1 << 1)) != 0,
slstRecord.loop != 0,
slstRecord.volumes[i],
slstRecord.balances[i]);
}
}
}
void Sound::stopAllSLST() {
for (uint16 i = 0; i < _currentSLSTSounds.size(); i++) {
_vm->_mixer->stopHandle(*_currentSLSTSounds[i].handle);
delete _currentSLSTSounds[i].handle;
}
_currentSLSTSounds.clear();
}
static int8 convertBalance(int16 balance) {
return (int8)(balance >> 8);
}
void Sound::playSLSTSound(uint16 id, bool fade, bool loop, uint16 volume, int16 balance) {
// WORKAROUND: Some Riven SLST entries have a volume of 0, so we just ignore them.
if (volume == 0)
return;
SLSTSndHandle sndHandle;
sndHandle.handle = new Audio::SoundHandle();
sndHandle.id = id;
_currentSLSTSounds.push_back(sndHandle);
Audio::AudioStream *audStream = makeMohawkWaveStream(_vm->getResource(ID_TWAV, id));
// Loop here if necessary
if (loop)
audStream = Audio::makeLoopingAudioStream((Audio::RewindableAudioStream *)audStream, 0);
// TODO: Handle fading, possibly just raise the volume of the channel in increments?
_vm->_mixer->playStream(Audio::Mixer::kPlainSoundType, sndHandle.handle, audStream, -1, convertRivenVolume(volume), convertBalance(balance));
}
void Sound::stopSLSTSound(uint16 index, bool fade) {
// TODO: Fade out, mixer needs to be extended to get volume on a handle
_vm->_mixer->stopHandle(*_currentSLSTSounds[index].handle);
delete _currentSLSTSounds[index].handle;
_currentSLSTSounds.remove_at(index);
}
void Sound::pauseSLST() {
for (uint16 i = 0; i < _currentSLSTSounds.size(); i++)
_vm->_mixer->pauseHandle(*_currentSLSTSounds[i].handle, true);
}
void Sound::resumeSLST() {
for (uint16 i = 0; i < _currentSLSTSounds.size(); i++)
_vm->_mixer->pauseHandle(*_currentSLSTSounds[i].handle, false);
}
Audio::AudioStream *Sound::makeMohawkWaveStream(Common::SeekableReadStream *stream, CueList *cueList) {
uint32 tag = 0;
ADPCMStatus adpcmStatus;
DataChunk dataChunk;
uint32 dataSize = 0;
memset(&dataChunk, 0, sizeof(DataChunk));
if (stream->readUint32BE() != ID_MHWK) // MHWK tag again
error ("Could not find tag 'MHWK'");
stream->readUint32BE(); // Skip size
if (stream->readUint32BE() != ID_WAVE)
error ("Could not find tag 'WAVE'");
while (!dataChunk.audioData) {
tag = stream->readUint32BE();
switch (tag) {
case ID_ADPC:
debug(2, "Found Tag ADPC");
// ADPCM Sound Only
//
// This is useful for seeking in the stream, and is actually quite brilliant
// considering some of the other things Broderbund did with the engine.
// Only Riven and CSTime are known to use ADPCM audio and only CSTime
// actually requires this for seeking. On the other hand, it may be interesting
// to look at that one Riven sample that uses the cue points.
//
// Basically, the sample frame from the cue list is looked up here and then
// sets the starting sample and step index at the point specified. Quite
// an elegant/efficient system, really.
adpcmStatus.size = stream->readUint32BE();
adpcmStatus.itemCount = stream->readUint16BE();
adpcmStatus.channels = stream->readUint16BE();
adpcmStatus.statusItems = new ADPCMStatus::StatusItem[adpcmStatus.itemCount];
assert(adpcmStatus.channels <= 2);
for (uint16 i = 0; i < adpcmStatus.itemCount; i++) {
adpcmStatus.statusItems[i].sampleFrame = stream->readUint32BE();
for (uint16 j = 0; j < adpcmStatus.channels; j++) {
adpcmStatus.statusItems[i].channelStatus[j].last = stream->readSint16BE();
adpcmStatus.statusItems[i].channelStatus[j].stepIndex = stream->readUint16BE();
}
}
// TODO: Actually use this chunk. For now, just delete the status items...
delete[] adpcmStatus.statusItems;
break;
case ID_CUE:
debug(2, "Found Tag Cue#");
// Cues are used for animation sync. There are a couple in Myst and
// Riven but are not used there at all.
if (!cueList) {
uint32 size = stream->readUint32BE();
stream->skip(size);
break;
}
cueList->size = stream->readUint32BE();
cueList->pointCount = stream->readUint16BE();
if (cueList->pointCount == 0)
debug(2, "Cue# chunk found with no points!");
else
debug(2, "Cue# chunk found with %d point(s)!", cueList->pointCount);
cueList->points.resize(cueList->pointCount);
for (uint16 i = 0; i < cueList->pointCount; i++) {
cueList->points[i].sampleFrame = stream->readUint32BE();
byte nameLength = stream->readByte();
cueList->points[i].name.clear();
for (byte j = 0; j < nameLength; j++)
cueList->points[i].name += stream->readByte();
// Realign to an even boundary
if (!(nameLength & 1))
stream->readByte();
debug (3, "Cue# chunk point %d (frame %d): %s", i, cueList->points[i].sampleFrame, cueList->points[i].name.c_str());
}
break;
case ID_DATA:
debug(2, "Found Tag DATA");
// We subtract 20 from the actual chunk size, which is the total size
// of the chunk's header
dataSize = stream->readUint32BE() - 20;
dataChunk.sampleRate = stream->readUint16BE();
dataChunk.sampleCount = stream->readUint32BE();
dataChunk.bitsPerSample = stream->readByte();
dataChunk.channels = stream->readByte();
dataChunk.encoding = stream->readUint16BE();
dataChunk.loopCount = stream->readUint16BE();
dataChunk.loopStart = stream->readUint32BE();
dataChunk.loopEnd = stream->readUint32BE();
// NOTE: We currently ignore all of the loop parameters here. Myst uses the
// loopCount variable but the loopStart and loopEnd are always 0 and the size of
// the sample. Myst ME doesn't use the Mohawk Sound format and just standard WAVE
// files and therefore does not contain any of this metadata and we have to specify
// whether or not to loop elsewhere.
dataChunk.audioData = stream->readStream(dataSize);
break;
default:
error ("Unknown tag found in 'tWAV' chunk -- '%s'", tag2str(tag));
}
}
// makeMohawkWaveStream always takes control of the original stream
delete stream;
// The sound in Myst uses raw unsigned 8-bit data
// The sound in the CD version of Riven is encoded in Intel DVI ADPCM
// The sound in the DVD version of Riven is encoded in MPEG-2 Layer II or Intel DVI ADPCM
if (dataChunk.encoding == kCodecRaw) {
byte flags = Audio::FLAG_UNSIGNED;
if (dataChunk.channels == 2)
flags |= Audio::FLAG_STEREO;
return Audio::makeRawStream(dataChunk.audioData, dataChunk.sampleRate, flags);
} else if (dataChunk.encoding == kCodecADPCM) {
uint32 blockAlign = dataChunk.channels * dataChunk.bitsPerSample / 8;
return Audio::makeADPCMStream(dataChunk.audioData, DisposeAfterUse::YES, dataSize, Audio::kADPCMIma, dataChunk.sampleRate, dataChunk.channels, blockAlign);
} else if (dataChunk.encoding == kCodecMPEG2) {
#ifdef USE_MAD
return Audio::makeMP3Stream(dataChunk.audioData, DisposeAfterUse::YES);
#else
warning ("MAD library not included - unable to play MP2 audio");
#endif
} else {
error ("Unknown Mohawk WAVE encoding %d", dataChunk.encoding);
}
return NULL;
}
Audio::AudioStream *Sound::makeOldMohawkWaveStream(Common::SeekableReadStream *stream) {
uint16 header = stream->readUint16BE();
uint16 rate = 0;
uint32 size = 0;
if (header == 'Wv') { // Big Endian
rate = stream->readUint16BE();
stream->skip(10); // Unknown
size = stream->readUint32BE();
} else if (header == 'vW') { // Little Endian
stream->readUint16LE(); // Unknown
rate = stream->readUint16LE();
stream->skip(8); // Unknown
size = stream->readUint32LE();
} else
error("Could not find Old Mohawk Sound header");
Common::SeekableReadStream *dataStream = stream->readStream(size);
delete stream;
return Audio::makeRawStream(dataStream, rate, Audio::FLAG_UNSIGNED);
}
SndHandle *Sound::getHandle() {
for (uint32 i = 0; i < _handles.size(); i++) {
if (_handles[i].type == kFreeHandle)
return &_handles[i];
if (!_vm->_mixer->isSoundHandleActive(_handles[i].handle)) {
_handles[i].type = kFreeHandle;
_handles[i].id = 0;
return &_handles[i];
}
}
// Let's add a new sound handle!
SndHandle handle;
handle.handle = Audio::SoundHandle();
handle.type = kFreeHandle;
handle.id = 0;
_handles.push_back(handle);
return &_handles[_handles.size() - 1];
}
void Sound::stopSound() {
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle) {
_vm->_mixer->stopHandle(_handles[i].handle);
_handles[i].type = kFreeHandle;
_handles[i].id = 0;
}
}
void Sound::stopSound(uint16 id) {
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle && _handles[i].id == id) {
_vm->_mixer->stopHandle(_handles[i].handle);
_handles[i].type = kFreeHandle;
_handles[i].id = 0;
}
}
void Sound::pauseSound() {
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle)
_vm->_mixer->pauseHandle(_handles[i].handle, true);
}
void Sound::resumeSound() {
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle)
_vm->_mixer->pauseHandle(_handles[i].handle, false);
}
bool Sound::isPlaying(uint16 id) {
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle && _handles[i].id == id)
return _vm->_mixer->isSoundHandleActive(_handles[i].handle);
return false;
}
uint Sound::getNumSamplesPlayed(uint16 id) {
for (uint32 i = 0; i < _handles.size(); i++)
if (_handles[i].type == kUsedHandle && _handles[i].id == id) {
return (_vm->_mixer->getSoundElapsedTime(_handles[i].handle) * _handles[i].samplesPerSecond) / 1000;
}
return 0;
}
uint16 Sound::convertMystID(uint16 id) {
// Myst ME is a bit more efficient with sound storage than Myst
// Myst has lots of sounds repeated. To overcome this, Myst ME
// has MJMP resources which provide a link to the actual MSND
// resource we're looking for. This saves a lot of space from
// repeated data.
if (_vm->hasResource(ID_MJMP, id)) {
Common::SeekableReadStream *mjmpStream = _vm->getResource(ID_MJMP, id);
id = mjmpStream->readUint16LE();
delete mjmpStream;
}
return id;
}
Audio::SoundHandle *Sound::replaceBackgroundMyst(uint16 id, uint16 volume) {
debug(0, "Replacing background sound with %d", id);
// TODO: The original engine does fading
Common::String name = _vm->getResourceName(ID_MSND, convertMystID(id));
// Check if sound is already playing
if (_mystBackgroundSound.type == kUsedHandle && _vm->_mixer->isSoundHandleActive(_mystBackgroundSound.handle)
&& name.equals(_vm->getResourceName(ID_MSND, convertMystID(_mystBackgroundSound.id))))
return &_mystBackgroundSound.handle;
// Stop old background sound
stopBackgroundMyst();
// Play new sound
Audio::AudioStream *audStream = makeAudioStream(id);
if (audStream) {
_mystBackgroundSound.type = kUsedHandle;
_mystBackgroundSound.id = id;
_mystBackgroundSound.samplesPerSecond = audStream->getRate();
// Set the stream to loop
audStream = Audio::makeLoopingAudioStream((Audio::RewindableAudioStream *)audStream, 0);
_vm->_mixer->playStream(Audio::Mixer::kPlainSoundType, &_mystBackgroundSound.handle, audStream, -1, volume >> 8);
return &_mystBackgroundSound.handle;
}
return NULL;
}
void Sound::stopBackgroundMyst() {
if (_mystBackgroundSound.type == kUsedHandle) {
_vm->_mixer->stopHandle(_mystBackgroundSound.handle);
_mystBackgroundSound.type = kFreeHandle;
_mystBackgroundSound.id = 0;
}
}
void Sound::pauseBackgroundMyst() {
if (_mystBackgroundSound.type == kUsedHandle)
_vm->_mixer->pauseHandle(_mystBackgroundSound.handle, true);
}
void Sound::resumeBackgroundMyst() {
if (_mystBackgroundSound.type == kUsedHandle)
_vm->_mixer->pauseHandle(_mystBackgroundSound.handle, false);
}
void Sound::changeBackgroundVolumeMyst(uint16 vol) {
if (_mystBackgroundSound.type == kUsedHandle)
_vm->_mixer->setChannelVolume(_mystBackgroundSound.handle, vol >> 8);
}
} // End of namespace Mohawk
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