1 files changed, 391 insertions, 0 deletions
diff --git a/engines/access/sound.cpp b/engines/access/sound.cpp
new file mode 100644
index 0000000000..51ffb88f37
--- /dev/null
+++ b/engines/access/sound.cpp
@@ -0,0 +1,391 @@
+/* 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.
+ *
+ */
+
+#include "common/algorithm.h"
+#include "common/config-manager.h"
+#include "audio/mixer.h"
+#include "audio/decoders/raw.h"
+#include "audio/decoders/wave.h"
+// Miles Audio
+#include "audio/miles.h"
+#include "access/access.h"
+#include "access/sound.h"
+
+namespace Access {
+
+SoundManager::SoundManager(AccessEngine *vm, Audio::Mixer *mixer) : _vm(vm), _mixer(mixer) {
+}
+
+SoundManager::~SoundManager() {
+	clearSounds();
+}
+
+void SoundManager::clearSounds() {
+	debugC(1, kDebugSound, "clearSounds()");
+
+	for (uint i = 0; i < _soundTable.size(); ++i)
+		delete _soundTable[i]._res;
+
+	_soundTable.clear();
+
+	if (_mixer->isSoundHandleActive(_effectsHandle))
+		_mixer->stopHandle(_effectsHandle);
+
+	while (_queue.size()) {
+		delete _queue[0];
+		_queue.remove_at(0);
+	}
+}
+
+void SoundManager::loadSoundTable(int idx, int fileNum, int subfile, int priority) {
+	debugC(1, kDebugSound, "loadSoundTable(%d, %d, %d)", idx, fileNum, subfile);
+
+	Resource *soundResource;
+
+	if (idx >= (int)_soundTable.size())
+		_soundTable.resize(idx + 1);
+
+	delete _soundTable[idx]._res;
+	soundResource = _vm->_files->loadFile(fileNum, subfile);
+	_soundTable[idx]._res = soundResource;
+	_soundTable[idx]._priority = priority;
+}
+
+Resource *SoundManager::loadSound(int fileNum, int subfile) {
+	debugC(1, kDebugSound, "loadSound(%d, %d)", fileNum, subfile);
+	return _vm->_files->loadFile(fileNum, subfile);
+}
+
+void SoundManager::playSound(int soundIndex, bool loop) {
+	debugC(1, kDebugSound, "playSound(%d, %d)", soundIndex, loop);
+
+	int priority = _soundTable[soundIndex]._priority;
+	playSound(_soundTable[soundIndex]._res, priority, loop);
+}
+
+void SoundManager::playSound(Resource *res, int priority, bool loop) {
+	debugC(1, kDebugSound, "playSound");
+
+	byte *resourceData = res->data();
+
+	assert(res->_size >= 32);
+
+	Audio::RewindableAudioStream *audioStream;
+
+	if (READ_BE_UINT32(resourceData) == MKTAG('R','I','F','F')) {
+		// CD version uses WAVE-files
+		Common::SeekableReadStream *waveStream = new Common::MemoryReadStream(resourceData, res->_size, DisposeAfterUse::NO);
+		audioStream = Audio::makeWAVStream(waveStream, DisposeAfterUse::YES);
+	} else if (READ_BE_UINT32(resourceData) == MKTAG('S', 'T', 'E', 'V')) {
+		// sound files have a fixed header of 32 bytes in total
+		//  header content:
+		//   "STEVE" - fixed header
+		//   byte    - sample rate
+		//              01h mapped internally to 3Ch
+		//              02h mapped internally to 78h
+		//              03h mapped internally to B5h
+		//              04h mapped internally to F1h
+		//   byte    - unknown
+		//   word    - actual sample size (should be resource-size - 32)
+		byte internalSampleRate = resourceData[5];
+		int sampleSize = READ_LE_UINT16(resourceData + 7);
+
+		assert( (sampleSize + 32) == res->_size);
+
+		int sampleRate = 0;
+		switch (internalSampleRate) {
+		case 1: // NEG(3Ch) -> C4h time constant
+			sampleRate = 16666;
+			break;
+
+		case 2: // NEG(78h) -> 88h time constant
+			sampleRate = 8334;
+			break;
+
+		case 3: // NEG(B5h) -> 4Bh time constant
+			sampleRate = 5525;
+			break;
+
+		case 4: // NEG(F1h) -> 0Fh time constant
+			sampleRate = 4150;
+			break;
+
+		default:
+			error("Unexpected internal Sample Rate %d", internalSampleRate);
+			return;
+		}
+
+		audioStream = Audio::makeRawStream(resourceData + 32, sampleSize, sampleRate, 0, DisposeAfterUse::NO);
+	} else
+		error("Unknown format");
+
+	if (loop) {
+		_queue.push_back(new Audio::LoopingAudioStream(audioStream, 0, DisposeAfterUse::NO));
+	} else {
+		_queue.push_back(audioStream);
+	}
+
+	if (!_mixer->isSoundHandleActive(_effectsHandle))
+		_mixer->playStream(Audio::Mixer::kSFXSoundType, &_effectsHandle,
+						_queue[0], -1, _mixer->kMaxChannelVolume, 0,
+						DisposeAfterUse::NO);
+}
+
+void SoundManager::checkSoundQueue() {
+	debugC(5, kDebugSound, "checkSoundQueue");
+
+	if (_queue.empty() || _mixer->isSoundHandleActive(_effectsHandle))
+		return;
+
+	delete _queue[0];
+	_queue.remove_at(0);
+
+	if (_queue.size() && _queue[0])
+		_mixer->playStream(Audio::Mixer::kSFXSoundType, &_effectsHandle,
+		   _queue[0], -1, _mixer->kMaxChannelVolume, 0,
+		   DisposeAfterUse::NO);
+}
+
+bool SoundManager::isSFXPlaying() {
+	return _mixer->isSoundHandleActive(_effectsHandle);
+}
+
+void SoundManager::loadSounds(Common::Array<RoomInfo::SoundIdent> &sounds) {
+	debugC(1, kDebugSound, "loadSounds");
+
+	clearSounds();
+
+	for (uint i = 0; i < sounds.size(); ++i) {
+		Resource *sound = loadSound(sounds[i]._fileNum, sounds[i]._subfile);
+		_soundTable.push_back(SoundEntry(sound, sounds[i]._priority));
+	}
+}
+
+void SoundManager::stopSound() {
+	debugC(3, kDebugSound, "stopSound");
+
+	_mixer->stopHandle(_effectsHandle);
+}
+
+void SoundManager::freeSounds() {
+	debugC(3, kDebugSound, "freeSounds");
+
+	stopSound();
+	clearSounds();
+}
+
+/******************************************************************************************/
+
+MusicManager::MusicManager(AccessEngine *vm) : _vm(vm) {
+	_music = nullptr;
+	_tempMusic = nullptr;
+	_isLooping = false;
+	_driver = nullptr;
+	_byte1F781 = false;
+
+	MidiDriver::DeviceHandle dev = MidiDriver::detectDevice(MDT_MIDI | MDT_ADLIB | MDT_PREFER_MT32);
+	MusicType musicType = MidiDriver::getMusicType(dev);
+
+	// Amazon Guardians of Eden uses MIDPAK inside MIDIDRV.AP
+	// AdLib patches are inside MIDIDRV.AP too, 2nd resource file
+	//
+	// Amazon Guardians of Eden (demo) seems to use another type of driver, possibly written by Access themselves
+	// Martian Memorandum uses this other type of driver as well, which means it makes sense to reverse engineer it.
+	//
+	switch (musicType) {
+	case MT_ADLIB: {
+		if (_vm->getGameID() == GType_Amazon) {
+			Resource   *midiDrvResource = _vm->_files->loadFile(92, 1);
+			Common::MemoryReadStream *adLibInstrumentStream = new Common::MemoryReadStream(midiDrvResource->data(), midiDrvResource->_size);
+
+			_driver = Audio::MidiDriver_Miles_AdLib_create("", "", adLibInstrumentStream);
+
+			delete midiDrvResource;
+			delete adLibInstrumentStream;
+		} else {
+			MidiPlayer::createDriver();
+		}
+		break;
+	}
+	case MT_MT32:
+		_driver = Audio::MidiDriver_Miles_MT32_create("");
+		_nativeMT32 = true;
+		break;
+	case MT_GM:
+		if (ConfMan.getBool("native_mt32")) {
+			_driver = Audio::MidiDriver_Miles_MT32_create("");
+			_nativeMT32 = true;
+		}
+		break;
+
+	default:
+		break;
+	}
+
+#if 0
+	MidiPlayer::createDriver();
+	MidiDriver::detectDevice(MDT_MIDI | MDT_ADLIB | MDT_PREFER_GM);
+#endif
+
+	if (_driver) {
+		int retValue = _driver->open();
+		if (retValue == 0) {
+			if (_nativeMT32)
+				_driver->sendMT32Reset();
+			else
+				_driver->sendGMReset();
+
+			_driver->setTimerCallback(this, &timerCallback);
+		}
+	}
+}
+
+MusicManager::~MusicManager() {
+	delete _music;
+	delete _tempMusic;
+}
+
+void MusicManager::send(uint32 b) {
+	// Pass data directly to driver
+	_driver->send(b);
+#if 0
+	if ((b & 0xF0) == 0xC0 && !_nativeMT32) {
+		b = (b & 0xFFFF00FF) | MidiDriver::_mt32ToGm[(b >> 8) & 0xFF] << 8;
+	}
+
+	Audio::MidiPlayer::send(b);
+#endif
+}
+
+void MusicManager::midiPlay() {
+	debugC(1, kDebugSound, "midiPlay");
+
+	if (!_driver)
+		return;
+
+	if (_music->_size < 4) {
+		error("midiPlay() wrong music resource size");
+	}
+
+	stop();
+
+	if (READ_BE_UINT32(_music->data()) != MKTAG('F', 'O', 'R', 'M')) {
+		warning("midiPlay() Unexpected signature");
+		_isPlaying = false;
+	} else {
+		_parser = MidiParser::createParser_XMIDI();
+
+		if (!_parser->loadMusic(_music->data(), _music->_size))
+			error("midiPlay() wrong music resource");
+
+		_parser->setTrack(0);
+		_parser->setMidiDriver(this);
+		_parser->setTimerRate(_driver->getBaseTempo());
+		_parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
+		_parser->property(MidiParser::mpSendSustainOffOnNotesOff, 1);
+
+		// Handle music looping
+		_parser->property(MidiParser::mpAutoLoop, _isLooping);
+
+		setVolume(127);
+		_isPlaying = true;
+	}
+}
+
+bool MusicManager::checkMidiDone() {
+	debugC(1, kDebugSound, "checkMidiDone");
+	return (!_isPlaying);
+}
+
+void MusicManager::midiRepeat() {
+	debugC(1, kDebugSound, "midiRepeat");
+
+	if (!_driver)
+		return;
+	if (!_parser)
+		return;
+
+	_isLooping = true;
+	_parser->property(MidiParser::mpAutoLoop, _isLooping);
+	if (!_isPlaying)
+		_parser->setTrack(0);
+}
+
+void MusicManager::stopSong() {
+	debugC(1, kDebugSound, "stopSong");
+
+	if (!_driver)
+		return;
+
+	stop();
+}
+
+void MusicManager::loadMusic(int fileNum, int subfile) {
+	debugC(1, kDebugSound, "loadMusic(%d, %d)", fileNum, subfile);
+
+	_music = _vm->_files->loadFile(fileNum, subfile);
+}
+
+void MusicManager::loadMusic(FileIdent file) {
+	debugC(1, kDebugSound, "loadMusic(%d, %d)", file._fileNum, file._subfile);
+
+	_music = _vm->_files->loadFile(file);
+}
+
+void MusicManager::newMusic(int musicId, int mode) {
+	debugC(1, kDebugSound, "newMusic(%d, %d)", musicId, mode);
+
+	if (!_driver)
+		return;
+
+	if (mode == 1) {
+		stopSong();
+		freeMusic();
+		_music = _tempMusic;
+		_tempMusic = nullptr;
+		_isLooping = true;
+	} else {
+		_isLooping = (mode == 2);
+		_tempMusic = _music;
+		stopSong();
+		loadMusic(97, musicId);
+	}
+
+	if (_music)
+		midiPlay();
+}
+
+void MusicManager::freeMusic() {
+	debugC(3, kDebugSound, "freeMusic");
+
+	delete _music;
+	_music = nullptr;
+}
+
+void MusicManager::setLoop(bool loop) {
+	debugC(3, kDebugSound, "setLoop");
+
+	_isLooping = loop;
+	if (_parser)
+		_parser->property(MidiParser::mpAutoLoop, _isLooping);
+}
+} // End of namespace Access