Initial commit

backends/audiocd/audiocd-stream.cpp

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "backends/audiocd/audiocd-stream.h"
+#include "common/textconsole.h"
+
+AudioCDStream::AudioCDStream() : _buffer(), _frame(0), _bufferPos(0), _bufferFrame(0), _forceStop(false) {
+}
+
+AudioCDStream::~AudioCDStream() {
+	// Stop the timer; the subclass needs to do this,
+	// so this is just a last resort.
+	stopTimer();
+
+	// Clear any buffered frames
+	emptyQueue();
+}
+
+int AudioCDStream::readBuffer(int16 *buffer, const int numSamples) {
+	int samples = 0;
+
+	// See if any data is left first
+	while (_bufferPos < kSamplesPerFrame && samples < numSamples)
+		buffer[samples++] = _buffer[_bufferPos++];
+
+	// Bail out if done
+	if (endOfData())
+		return samples;
+
+	while (samples < numSamples && !endOfData()) {
+		if (!readNextFrame())
+			return samples;
+
+		// Copy the samples over
+		for (_bufferPos = 0; _bufferPos < kSamplesPerFrame && samples < numSamples;)
+			buffer[samples++] = _buffer[_bufferPos++];
+	}
+
+	return samples;
+}
+
+bool AudioCDStream::readNextFrame() {
+	// Fetch a frame from the queue
+	int16 *buffer;
+
+	{
+		Common::StackLock lock(_mutex);
+
+		// Nothing we can do if it's empty
+		if (_bufferQueue.empty())
+			return false;
+
+		buffer = _bufferQueue.pop();
+	}
+
+	memcpy(_buffer, buffer, kSamplesPerFrame * 2);
+	delete[] buffer;
+	_frame++;
+	return true;
+}
+
+bool AudioCDStream::endOfData() const {
+	return !shouldForceStop() && getStartFrame() + _frame >= getEndFrame() && _bufferPos == kSamplesPerFrame;
+}
+
+bool AudioCDStream::seek(const Audio::Timestamp &where) {
+	// Stop the timer
+	stopTimer();
+
+	// Clear anything out of the queue
+	emptyQueue();
+
+	// Convert to the frame number
+	// Really not much else needed
+	_bufferPos = kSamplesPerFrame;
+	_frame = where.convertToFramerate(kFramesPerSecond).totalNumberOfFrames();
+	_bufferFrame = _frame;
+
+	// Start the timer again
+	startTimer();
+	return true;
+}
+
+Audio::Timestamp AudioCDStream::getLength() const {
+	return Audio::Timestamp(0, getEndFrame() - getStartFrame(), kFramesPerSecond);
+}
+
+void AudioCDStream::timerProc(void *refCon) {
+	static_cast<AudioCDStream *>(refCon)->onTimer();
+}
+
+void AudioCDStream::onTimer() {
+	// The goal here is to do as much work in this timer instead
+	// of doing it in the readBuffer() call, which is the mixer.
+
+	// If we're done, bail.
+	if (shouldForceStop() || getStartFrame() + _bufferFrame >= getEndFrame())
+		return;
+
+	// Get a quick count of the number of items in the queue
+	// We don't care that much; we only need a quick estimate
+	_mutex.lock();
+	uint32 queueCount = _bufferQueue.size();
+	_mutex.unlock();
+
+	// If we have enough audio buffered, bail out
+	if (queueCount >= kBufferThreshold)
+		return;
+
+	while (!shouldForceStop() && queueCount < kBufferThreshold && getStartFrame() + _bufferFrame < getEndFrame()) {
+		int16 *buffer = new int16[kSamplesPerFrame];
+
+		// Figure out the MSF of the frame we're looking for
+		int frame = _bufferFrame + getStartFrame();
+
+		// Request to read that frame
+		if (!readFrame(frame, buffer)) {
+			warning("Failed to read CD audio");
+			forceStop();
+			return;
+		}
+
+		_bufferFrame++;
+
+		// Now push the buffer onto the queue
+		Common::StackLock lock(_mutex);
+		_bufferQueue.push(buffer);
+		queueCount = _bufferQueue.size();
+	}
+}
+
+void AudioCDStream::startTimer(bool fillBuffer) {
+	_forceStop = false;
+	if (fillBuffer) {
+		onTimer();
+	}
+	g_system->getTimerManager()->installTimerProc(timerProc, 10 * 1000, this, "AudioCDStream");
+}
+
+void AudioCDStream::stopTimer() {
+	forceStop();
+	g_system->getTimerManager()->removeTimerProc(timerProc);
+}
+
+void AudioCDStream::emptyQueue() {
+	while (!_bufferQueue.empty())
+		delete[] _bufferQueue.pop();
+}
+
+bool AudioCDStream::shouldForceStop() const {
+	Common::StackLock lock(_forceStopMutex);
+	return _forceStop;
+}
+
+void AudioCDStream::forceStop() {
+	Common::StackLock lock(_forceStopMutex);
+	_forceStop = true;
+}

backends/audiocd/audiocd-stream.h

@@ -0,0 +1,106 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_AUDIOCD_STREAM_H
+#define BACKENDS_AUDIOCD_AUDIOCD_STREAM_H
+
+#include "audio/audiostream.h"
+#include "common/mutex.h"
+#include "common/queue.h"
+#include "common/timer.h"
+
+class AudioCDStream : public Audio::SeekableAudioStream {
+public:
+	AudioCDStream();
+	~AudioCDStream();
+
+	int readBuffer(int16 *buffer, const int numSamples);
+	bool isStereo() const { return true; }
+	int getRate() const { return 44100; }
+	bool endOfData() const;
+	bool seek(const Audio::Timestamp &where);
+	Audio::Timestamp getLength() const;
+
+protected:
+	virtual uint getStartFrame() const = 0;
+	virtual uint getEndFrame() const = 0;
+	virtual bool readFrame(int frame, int16 *buffer) = 0;
+
+	void startTimer(bool fillBuffer = false);
+	void stopTimer();
+
+	enum {
+		kBytesPerFrame = 2352,
+		kSamplesPerFrame = kBytesPerFrame / 2
+	};
+
+	enum {
+		kSecondsPerMinute = 60,
+		kFramesPerSecond = 75
+	};
+
+	enum {
+		// Keep about a second's worth of audio in the buffer
+		kBufferThreshold = kFramesPerSecond
+	};
+
+private:
+	int16 _buffer[kSamplesPerFrame];
+	int _frame;
+	uint _bufferPos;
+
+	Common::Queue<int16 *> _bufferQueue;
+	int _bufferFrame;
+	Common::Mutex _mutex;
+
+	bool _forceStop;
+	bool shouldForceStop() const;
+	void forceStop();
+	Common::Mutex _forceStopMutex;
+
+	bool readNextFrame();
+	static void timerProc(void *refCon);
+	void onTimer();
+	void emptyQueue();
+};
+
+#endif

backends/audiocd/audiocd.h

@@ -0,0 +1,135 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_ABSTRACT_H
+#define BACKENDS_AUDIOCD_ABSTRACT_H
+
+#include "audio/mixer.h"
+#include "common/scummsys.h"
+#include "common/noncopyable.h"
+
+/**
+* Abstract Audio CD manager class. Subclasses implement the actual
+* functionality.
+*/
+class AudioCDManager : Common::NonCopyable {
+public:
+	virtual ~AudioCDManager() {}
+
+	/**
+	* A structure containing the current playback information
+	*/
+	struct Status {
+		bool playing;
+		int track;
+		int start;
+		int duration;
+		int numLoops;
+		int volume;
+		int balance;
+	};
+
+	/**
+	 * Initialize the specified CD drive for audio playback.
+	 * @return true if the CD drive was inited successfully
+	 */
+	virtual bool open() = 0;
+
+	/**
+	 * Close the currently open CD drive
+	 */
+	virtual void close() = 0;
+
+	/**
+	 * Start audio CD playback
+	 * @param track          the track to play.
+	 * @param numLoops       how often playback should be repeated (<=0 means infinitely often).
+	 * @param startFrame     the frame at which playback should start (75 frames = 1 second).
+	 * @param duration       the number of frames to play.
+	 * @param onlyEmulate    determines if the track should be emulated only
+	 * @param soundType      What sound type to play as. By default, it's as music
+	 * @note The @c onlyEmulate parameter is deprecated.
+	 * @return @c true if the track started playing, @c false otherwise
+	 */
+	virtual bool play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate = false,
+		Audio::Mixer::SoundType soundType = Audio::Mixer::kMusicSoundType) = 0;
+
+	/**
+	 * Start audio CD playback at a specific absolute timestamp
+	 * @param startFrame     the frame at which playback should start (75 frames = 1 second).
+	 * @param numLoops       how often playback should be repeated (<=0 means infinitely often).
+	 * @param duration       the number of frames to play.
+	 * @param onlyEmulate    determines if the track should be emulated only
+	 * @param soundType      What sound type to play as. By default, it's as music
+	 * @param cuesheet       The name of the cuesheet to use for timing data
+	 * @note The @c onlyEmulate parameter is deprecated.
+	 * @return @c true if the track started playing, @c false otherwise
+	 */
+	virtual bool playAbsolute(int startFrame, int numLoops, int duration, bool onlyEmulate = false,
+		Audio::Mixer::SoundType soundType = Audio::Mixer::kMusicSoundType, const char *cuesheet = "disc.cue") = 0;
+
+	/**
+	 * Get if audio is being played.
+	 * @return true if CD audio is playing
+	 */
+	virtual bool isPlaying() const = 0;
+
+	/**
+	 * Set the audio volume
+	 */
+	virtual void setVolume(byte volume) = 0;
+
+	/**
+	 * Set the speakers balance
+	 */
+	virtual void setBalance(int8 balance) = 0;
+
+	/**
+	 * Stop audio playback.
+	 */
+	virtual void stop() = 0;
+
+	/**
+	 * Update audio status.
+	 */
+	virtual void update() = 0;
+
+	/**
+	 * Get the playback status.
+	 * @return a Status struct with playback data.
+	 */
+	virtual Status getStatus() const = 0;
+
+	/**
+	 * Checks whether the extracted audio cd tracks exists as files in
+	 * the search paths.
+	 * @return true if audio files of the expected naming scheme are found, and supported by ScummVM.
+	 */
+	virtual bool existExtractedCDAudioFiles(uint track) = 0;
+
+	/**
+	 * Checks if game data are read from the same CD drive which should also play game CD audio.
+	 * @return true, if this case is applicable, and the system doesn't allow it.
+	 */
+	virtual bool isDataAndCDAudioReadFromSameCD() = 0;
+};
+
+#endif

backends/audiocd/default/default-audiocd.cpp

@@ -0,0 +1,231 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "backends/audiocd/default/default-audiocd.h"
+#include "audio/audiostream.h"
+#include "common/config-manager.h"
+#include "common/file.h"
+#include "common/system.h"
+#include "common/util.h"
+#include "common/formats/cue.h"
+
+DefaultAudioCDManager::DefaultAudioCDManager() {
+	_cd.playing = false;
+	_cd.track = 0;
+	_cd.start = 0;
+	_cd.duration = 0;
+	_cd.numLoops = 0;
+	_cd.volume = Audio::Mixer::kMaxChannelVolume;
+	_cd.balance = 0;
+	_mixer = g_system->getMixer();
+	_emulating = false;
+	assert(_mixer);
+}
+
+DefaultAudioCDManager::~DefaultAudioCDManager() {
+	// Subclasses should call close as well
+	close();
+}
+
+bool DefaultAudioCDManager::open() {
+	// For emulation, opening is always valid
+	close();
+	return true;
+}
+
+void DefaultAudioCDManager::close() {
+	// Only need to stop for emulation
+	stop();
+}
+
+void DefaultAudioCDManager::fillPotentialTrackNames(Common::Array<Common::String> &trackNames, int track) const {
+	trackNames.reserve(4);
+	trackNames.push_back(Common::String::format("track%d", track));
+	trackNames.push_back(Common::String::format("track%02d", track));
+	trackNames.push_back(Common::String::format("track_%d", track));
+	trackNames.push_back(Common::String::format("track_%02d", track));
+}
+
+bool DefaultAudioCDManager::existExtractedCDAudioFiles(uint track) {
+	// keep this in sync with STREAM_FILEFORMATS
+	const char *extensions[] = {
+#ifdef USE_VORBIS
+		"ogg",
+#endif
+#ifdef USE_FLAC
+		"fla", "flac",
+#endif
+#ifdef USE_MAD
+		"mp3",
+#endif
+		"m4a",
+		"wav",
+		nullptr
+	};
+
+	Common::Array<Common::String> trackNames;
+	fillPotentialTrackNames(trackNames, track);
+
+	for (auto &trackName : trackNames) {
+		for (const char **ext = extensions; *ext; ++ext) {
+			const Common::String &filename = Common::String::format("%s.%s", trackName.c_str(), *ext);
+			if (Common::File::exists(Common::Path(filename, '/'))) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+
+bool DefaultAudioCDManager::play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+		Audio::Mixer::SoundType soundType) {
+	stop();
+
+	if (numLoops != 0 || startFrame != 0) {
+		_cd.track = track;
+		_cd.numLoops = numLoops;
+		_cd.start = startFrame;
+		_cd.duration = duration;
+
+		// Try to load the track from a compressed data file, and if found, use
+		// that. If not found, attempt to start regular Audio CD playback of
+		// the requested track.
+		Common::Array<Common::String> trackNames;
+		fillPotentialTrackNames(trackNames, track);
+		Audio::SeekableAudioStream *stream = nullptr;
+
+		for (auto &trackName : trackNames) {
+			stream = Audio::SeekableAudioStream::openStreamFile(Common::Path(trackName, '/'));
+			if (stream)
+				break;
+		}
+
+		if (stream != nullptr) {
+			Audio::Timestamp start = Audio::Timestamp(0, startFrame, 75);
+			Audio::Timestamp end = duration ? Audio::Timestamp(0, startFrame + duration, 75) : stream->getLength();
+
+			/*
+			FIXME: Seems numLoops == 0 and numLoops == 1 both indicate a single repetition,
+			while all other positive numbers indicate precisely the number of desired
+			repetitions. Finally, -1 means infinitely many
+			*/
+			_emulating = true;
+			_mixer->playStream(soundType, &_handle,
+			                        Audio::makeLoopingAudioStream(stream, start, end, (numLoops < 1) ? numLoops + 1 : numLoops), -1, _cd.volume, _cd.balance);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+bool DefaultAudioCDManager::playAbsolute(int startFrame, int numLoops, int duration, bool onlyEmulate,
+		Audio::Mixer::SoundType soundType, const char *cuesheet) {
+
+	Common::File cuefile;
+	if (!cuefile.open(cuesheet)) {
+		return false;
+	}
+	Common::String cuestring = cuefile.readString(0, cuefile.size());
+	Common::CueSheet cue(cuestring.c_str());
+
+	Common::CueSheet::CueTrack *track = cue.getTrackAtFrame(startFrame);
+	if (track == nullptr) {
+		warning("Unable to locate track for frame %i", startFrame);
+		return false;
+	} else {
+		warning("Playing from frame %i", startFrame);
+	}
+	int firstFrame = track->indices[0] == -1 ? track->indices[1] : track->indices[0];
+
+	return play(track->number, numLoops, startFrame - firstFrame, duration, onlyEmulate);
+}
+
+void DefaultAudioCDManager::stop() {
+	if (_emulating) {
+		// Audio CD emulation
+		_mixer->stopHandle(_handle);
+		_emulating = false;
+	}
+}
+
+bool DefaultAudioCDManager::isPlaying() const {
+	// Audio CD emulation
+	if (_emulating)
+		return _mixer->isSoundHandleActive(_handle);
+
+	// The default class only handles emulation
+	return false;
+}
+
+void DefaultAudioCDManager::setVolume(byte volume) {
+	_cd.volume = volume;
+
+	// Audio CD emulation
+	if (_emulating && isPlaying())
+		_mixer->setChannelVolume(_handle, _cd.volume);
+}
+
+void DefaultAudioCDManager::setBalance(int8 balance) {
+	_cd.balance = balance;
+
+	// Audio CD emulation
+	if (_emulating && isPlaying())
+		_mixer->setChannelBalance(_handle, _cd.balance);
+}
+
+void DefaultAudioCDManager::update() {
+	if (_emulating) {
+		// Check whether the audio track stopped playback
+		if (!_mixer->isSoundHandleActive(_handle)) {
+			// FIXME: We do not update the numLoops parameter here (and in fact,
+			// currently can't do that). Luckily, only one engine ever checks
+			// this part of the AudioCD status, namely the SCUMM engine; and it
+			// only checks whether the track is currently set to infinite looping
+			// or not.
+			_emulating = false;
+		}
+	}
+}
+
+DefaultAudioCDManager::Status DefaultAudioCDManager::getStatus() const {
+	Status info = _cd;
+	info.playing = isPlaying();
+	return info;
+}
+
+bool DefaultAudioCDManager::openRealCD() {
+	Common::String cdrom = ConfMan.get("cdrom");
+
+	// Try to parse it as an int
+	char *endPos;
+	int drive = strtol(cdrom.c_str(), &endPos, 0);
+
+	// If not an integer, treat as a drive path
+	if (endPos == cdrom.c_str())
+		return openCD(Common::Path::fromConfig(cdrom));
+
+	if (drive < 0)
+		return false;
+
+	return openCD(drive);
+}
+

backends/audiocd/default/default-audiocd.h

@@ -0,0 +1,85 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_DEFAULT_H
+#define BACKENDS_AUDIOCD_DEFAULT_H
+
+#include "backends/audiocd/audiocd.h"
+#include "audio/mixer.h"
+
+namespace Common {
+class String;
+} // End of namespace Common
+
+/**
+ * The default audio cd manager. Implements emulation of audio cd playback.
+ */
+class DefaultAudioCDManager : public AudioCDManager {
+public:
+	DefaultAudioCDManager();
+	virtual ~DefaultAudioCDManager();
+
+	virtual bool open();
+	virtual void close();
+	virtual bool play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate = false,
+		Audio::Mixer::SoundType soundType = Audio::Mixer::kMusicSoundType);
+	virtual bool playAbsolute(int startFrame, int numLoops, int duration, bool onlyEmulate = false,
+		Audio::Mixer::SoundType soundType = Audio::Mixer::kMusicSoundType, const char *cuesheet = "disc.cue");
+	virtual void stop();
+	virtual bool isPlaying() const;
+	virtual void setVolume(byte volume);
+	virtual void setBalance(int8 balance);
+	virtual void update();
+	virtual Status getStatus() const; // Subclasses should override for better status results
+	virtual bool existExtractedCDAudioFiles(uint track);
+	virtual bool isDataAndCDAudioReadFromSameCD() { return false; }
+
+private:
+	void fillPotentialTrackNames(Common::Array<Common::String> &trackNames, int track) const;
+
+protected:
+	/**
+	 * Open a CD using the cdrom config variable
+	 */
+	bool openRealCD();
+
+	/**
+	 * Open a CD using the specified drive index
+	 * @param drive The index of the drive
+	 * @note The index is implementation-defined, but 0 is always the best choice
+	 */
+	virtual bool openCD(int drive) { return false; }
+
+	/**
+	 * Open a CD from a specific drive
+	 * @param drive The name of the drive/path
+	 * @note The drive parameter is platform-specific
+	 */
+	virtual bool openCD(const Common::Path &drive) { return false; }
+
+	Audio::SoundHandle _handle;
+	bool _emulating;
+
+	Status _cd;
+	Audio::Mixer *_mixer;
+};
+
+#endif

backends/audiocd/linux/linux-audiocd.cpp

@@ -0,0 +1,473 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// Enable all forbidden symbols to allow us to include and use necessary APIs.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#include "backends/audiocd/linux/linux-audiocd.h"
+
+#ifdef USE_LINUXCD
+
+#include "backends/audiocd/audiocd-stream.h"
+#include "backends/audiocd/default/default-audiocd.h"
+#include "common/array.h"
+#include "common/config-manager.h"
+#include "common/str.h"
+#include "common/debug.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/cdrom.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+
+enum {
+	kLeadoutTrack = 0xAA
+};
+
+enum {
+	kBytesPerFrame = 2352,
+	kSamplesPerFrame = kBytesPerFrame / 2
+};
+
+enum {
+	kSecondsPerMinute = 60,
+	kFramesPerSecond = 75
+};
+
+enum {
+	// Keep about a second's worth of audio in the buffer
+	kBufferThreshold = kFramesPerSecond
+};
+
+static int getFrameCount(const cdrom_msf0 &msf) {
+	int time = msf.minute;
+	time *= kSecondsPerMinute;
+	time += msf.second;
+	time *= kFramesPerSecond;
+	time += msf.frame;
+	return time;
+}
+
+// Helper function to convert an error code into a human-readable message
+static Common::String getErrorMessage(int errorCode) {
+	char buf[256];
+	buf[0] = 0;
+
+#ifdef _GNU_SOURCE
+	// glibc sucks
+	return Common::String(strerror_r(errorCode, buf, sizeof(buf)));
+#else
+	strerror_r(errorCode, buf, sizeof(buf));
+	return Common::String(buf);
+#endif
+}
+
+class LinuxAudioCDStream : public AudioCDStream {
+public:
+	LinuxAudioCDStream(int fd, const cdrom_tocentry &startEntry, const cdrom_tocentry &endEntry);
+	~LinuxAudioCDStream();
+
+protected:
+	uint getStartFrame() const;
+	uint getEndFrame() const;
+	bool readFrame(int frame, int16 *buffer);
+
+private:
+	int _fd;
+	const cdrom_tocentry &_startEntry, &_endEntry;
+};
+
+LinuxAudioCDStream::LinuxAudioCDStream(int fd, const cdrom_tocentry &startEntry, const cdrom_tocentry &endEntry) :
+	_fd(fd), _startEntry(startEntry), _endEntry(endEntry) {
+	// We fill the buffer here already to prevent any out of sync issues due
+	// to the CD not yet having spun up.
+	startTimer(true);
+}
+
+LinuxAudioCDStream::~LinuxAudioCDStream() {
+	stopTimer();
+}
+
+bool LinuxAudioCDStream::readFrame(int frame, int16 *buffer) {
+	// Create the argument
+	union {
+		cdrom_msf msf;
+		char buffer[kBytesPerFrame];
+	} arg;
+
+	int seconds = frame / kFramesPerSecond;
+	frame %= kFramesPerSecond;
+	int minutes = seconds / kSecondsPerMinute;
+	seconds %= kSecondsPerMinute;
+
+	// Request to read that frame
+	// We don't use CDROMREADAUDIO, as it seems to cause kernel
+	// panics on ejecting discs. Probably bad to eject the disc
+	// while playing, but at least let's try to prevent that case.
+	arg.msf.cdmsf_min0 = minutes;
+	arg.msf.cdmsf_sec0 = seconds;
+	arg.msf.cdmsf_frame0 = frame;
+	// The "end" part is irrelevant (why isn't cdrom_msf0 the type
+	// instead?)
+
+	if (ioctl(_fd, CDROMREADRAW, &arg) < 0) {
+		warning("Failed to CD read audio: %s", getErrorMessage(errno).c_str());
+		return false;
+	}
+
+	memcpy(buffer, arg.buffer, kBytesPerFrame);
+	return true;
+}
+
+uint LinuxAudioCDStream::getStartFrame() const {
+	return getFrameCount(_startEntry.cdte_addr.msf);
+}
+
+uint LinuxAudioCDStream::getEndFrame() const {
+	return getFrameCount(_endEntry.cdte_addr.msf);
+}
+
+
+class LinuxAudioCDManager : public DefaultAudioCDManager {
+public:
+	LinuxAudioCDManager();
+	~LinuxAudioCDManager();
+
+	bool open() override;
+	void close() override;
+	bool play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+			Audio::Mixer::SoundType soundType) override;
+
+protected:
+	bool openCD(int drive) override;
+	bool openCD(const Common::Path &drive) override;
+
+private:
+	struct Device {
+		Device(const Common::Path &n, dev_t d) : name(n), device(d) {}
+		Common::Path name;
+		dev_t device;
+	};
+
+	typedef Common::Array<Device> DeviceList;
+	DeviceList scanDevices();
+	bool tryAddDrive(DeviceList &devices, const Common::Path &drive);
+	bool tryAddDrive(DeviceList &devices, const Common::Path &drive, dev_t device);
+	bool tryAddDrive(DeviceList &devices, dev_t device);
+	bool tryAddPath(DeviceList &devices, const Common::Path &path);
+	bool tryAddGamePath(DeviceList &devices);
+	bool loadTOC();
+	static bool hasDevice(const DeviceList &devices, dev_t device);
+
+	int _fd;
+	cdrom_tochdr _tocHeader;
+	Common::Array<cdrom_tocentry> _tocEntries;
+};
+
+static bool isTrayEmpty(int errorNumber) {
+	switch (errorNumber) {
+	case EIO:
+	case ENOENT:
+	case EINVAL:
+#ifdef ENOMEDIUM
+	case ENOMEDIUM:
+#endif
+		return true;
+	}
+
+	return false;
+}
+
+LinuxAudioCDManager::LinuxAudioCDManager() {
+	_fd = -1;
+	memset(&_tocHeader, 0, sizeof(_tocHeader));
+}
+
+LinuxAudioCDManager::~LinuxAudioCDManager() {
+	close();
+}
+
+bool LinuxAudioCDManager::open() {
+	close();
+
+	if (openRealCD())
+		return true;
+
+	return DefaultAudioCDManager::open();
+}
+
+void LinuxAudioCDManager::close() {
+	DefaultAudioCDManager::close();
+
+	if (_fd < 0)
+		return;
+
+	::close(_fd);
+	_fd = -1;
+	memset(&_tocHeader, 0, sizeof(_tocHeader));
+	_tocEntries.clear();
+}
+
+bool LinuxAudioCDManager::openCD(int drive) {
+	DeviceList devices = scanDevices();
+	if (drive >= (int)devices.size())
+		return false;
+
+	_fd = ::open(devices[drive].name.toString('/').c_str(), O_RDONLY | O_NONBLOCK, 0);
+	if (_fd < 0)
+		return false;
+
+	if (!loadTOC()) {
+		close();
+		return false;
+	}
+
+	return true;
+}
+
+bool LinuxAudioCDManager::openCD(const Common::Path &drive) {
+	DeviceList devices;
+	if (!tryAddDrive(devices, drive) && !tryAddPath(devices, drive))
+		return false;
+
+	_fd = ::open(devices[0].name.toString('/').c_str(), O_RDONLY | O_NONBLOCK, 0);
+	if (_fd < 0)
+		return false;
+
+	if (!loadTOC()) {
+		close();
+		return false;
+	}
+
+	return true;
+}
+
+bool LinuxAudioCDManager::play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+		Audio::Mixer::SoundType soundType) {
+	// Prefer emulation
+	if (DefaultAudioCDManager::play(track, numLoops, startFrame, duration, onlyEmulate, soundType))
+		return true;
+
+	// If we're set to only emulate, or have no CD drive, return here
+	if (onlyEmulate || _fd < 0)
+		return false;
+
+	// HACK: For now, just assume that track number is right
+	// That only works because ScummVM uses the wrong track number anyway
+
+	if (track >= (int)_tocEntries.size() - 1) {
+		warning("No such track %d", track);
+		return false;
+	}
+
+	// Bail if the track isn't an audio track
+	if ((_tocEntries[track].cdte_ctrl & 0x04) != 0) {
+		warning("Track %d is not audio", track);
+		return false;
+	}
+
+	// Create the AudioStream and play it
+	debug(1, "Playing CD track %d", track);
+
+	Audio::SeekableAudioStream *audioStream = new LinuxAudioCDStream(_fd, _tocEntries[track], _tocEntries[track + 1]);
+
+	Audio::Timestamp start = Audio::Timestamp(0, startFrame, 75);
+	Audio::Timestamp end = (duration == 0) ? audioStream->getLength() : Audio::Timestamp(0, startFrame + duration, 75);
+
+	// Fake emulation since we're really playing an AudioStream
+	_emulating = true;
+
+	_mixer->playStream(
+	    soundType,
+	    &_handle,
+	    Audio::makeLoopingAudioStream(audioStream, start, end, (numLoops < 1) ? numLoops + 1 : numLoops),
+	    -1,
+	    _cd.volume,
+	    _cd.balance,
+	    DisposeAfterUse::YES,
+	    true);
+
+	return true;
+}
+
+LinuxAudioCDManager::DeviceList LinuxAudioCDManager::scanDevices() {
+	DeviceList devices;
+
+	// Try to use the game's path first as the device
+	tryAddGamePath(devices);
+
+	// Try adding the default CD-ROM
+	tryAddDrive(devices, "/dev/cdrom");
+
+	// TODO: Try others?
+
+	return devices;
+}
+
+bool LinuxAudioCDManager::tryAddDrive(DeviceList &devices, const Common::Path &drive) {
+	struct stat stbuf;
+	if (stat(drive.toString('/').c_str(), &stbuf) < 0)
+		return false;
+
+	// Must be a character or block device
+	if (!S_ISCHR(stbuf.st_mode) && !S_ISBLK(stbuf.st_mode))
+		return false;
+
+	return tryAddDrive(devices, drive, stbuf.st_rdev);
+}
+
+bool LinuxAudioCDManager::tryAddDrive(DeviceList &devices, const Common::Path &drive, dev_t device) {
+	if (hasDevice(devices, device))
+		return true;
+
+	// Try opening the device and seeing if it is a CD-ROM drve
+	int fd = ::open(drive.toString('/').c_str(), O_RDONLY | O_NONBLOCK, 0);
+	if (fd >= 0) {
+		cdrom_subchnl info;
+		info.cdsc_format = CDROM_MSF;
+
+		bool isCD = ioctl(fd, CDROMSUBCHNL, &info) == 0 || isTrayEmpty(errno);
+		::close(fd);
+		if (isCD) {
+			devices.push_back(Device(drive, device));
+			return true;
+		}
+	}
+
+	return false;
+}
+
+bool LinuxAudioCDManager::tryAddDrive(DeviceList &devices, dev_t device) {
+	// Construct the block name
+	// TODO: libblkid's blkid_devno_to_devname is exactly what we look for.
+	// This requires an external dependency though.
+	Common::Path name(Common::String::format("/dev/block/%d:%d", major(device), minor(device)), '/');
+
+	return tryAddDrive(devices, name, device);
+}
+
+bool LinuxAudioCDManager::tryAddPath(DeviceList &devices, const Common::Path &path) {
+	struct stat stbuf;
+	if (stat(path.toString(Common::Path::kNativeSeparator).c_str(), &stbuf) < 0)
+		return false;
+
+	return tryAddDrive(devices, stbuf.st_dev);
+}
+
+bool LinuxAudioCDManager::tryAddGamePath(DeviceList &devices) {
+	if (!ConfMan.hasKey("path"))
+		return false;
+
+	return tryAddPath(devices, ConfMan.getPath("path"));
+}
+
+bool LinuxAudioCDManager::loadTOC() {
+	if (_fd < 0)
+		return false;
+
+	if (ioctl(_fd, CDROMREADTOCHDR, &_tocHeader) < 0)
+		return false;
+
+	debug(4, "CD: Start Track: %d, End Track %d", _tocHeader.cdth_trk0, _tocHeader.cdth_trk1);
+
+	for (int i = _tocHeader.cdth_trk0; i <= _tocHeader.cdth_trk1; i++) {
+		cdrom_tocentry entry;
+		memset(&entry, 0, sizeof(entry));
+		entry.cdte_track = i;
+		entry.cdte_format = CDROM_MSF;
+
+		if (ioctl(_fd, CDROMREADTOCENTRY, &entry) < 0)
+			return false;
+
+#if 0
+		debug("Entry:");
+		debug("\tTrack: %d", entry.cdte_track);
+		debug("\tAdr: %d", entry.cdte_adr);
+		debug("\tCtrl: %d", entry.cdte_ctrl);
+		debug("\tFormat: %d", entry.cdte_format);
+		debug("\tMSF: %d:%d:%d", entry.cdte_addr.msf.minute, entry.cdte_addr.msf.second, entry.cdte_addr.msf.frame);
+		debug("\tMode: %d\n", entry.cdte_datamode);
+#endif
+
+		_tocEntries.push_back(entry);
+	}
+
+	// Fetch the leadout so we can get the length of the last frame
+	cdrom_tocentry entry;
+	memset(&entry, 0, sizeof(entry));
+	entry.cdte_track = kLeadoutTrack;
+	entry.cdte_format = CDROM_MSF;
+
+	if (ioctl(_fd, CDROMREADTOCENTRY, &entry) < 0)
+		return false;
+
+#if 0
+	debug("Lead out:");
+	debug("\tTrack: %d", entry.cdte_track);
+	debug("\tAdr: %d", entry.cdte_adr);
+	debug("\tCtrl: %d", entry.cdte_ctrl);
+	debug("\tFormat: %d", entry.cdte_format);
+	debug("\tMSF: %d:%d:%d", entry.cdte_addr.msf.minute, entry.cdte_addr.msf.second, entry.cdte_addr.msf.frame);
+	debug("\tMode: %d\n", entry.cdte_datamode);
+#endif
+
+	_tocEntries.push_back(entry);
+	return true;
+}
+
+bool LinuxAudioCDManager::hasDevice(const DeviceList &devices, dev_t device) {
+	for (DeviceList::const_iterator it = devices.begin(); it != devices.end(); it++)
+		if (it->device == device)
+			return true;
+
+	return false;
+}
+
+AudioCDManager *createLinuxAudioCDManager() {
+	return new LinuxAudioCDManager();
+}
+
+#endif // USE_LINUXCD

backends/audiocd/linux/linux-audiocd.h

@@ -0,0 +1,60 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_LINUX_H
+#define BACKENDS_AUDIOCD_LINUX_H
+
+#include "common/scummsys.h"
+
+#ifdef USE_LINUXCD
+
+class AudioCDManager;
+
+/**
+ * Create an audio CD manager using the Linux CDROM API
+ */
+AudioCDManager *createLinuxAudioCDManager();
+
+#endif
+
+#endif
+

backends/audiocd/macosx/macosx-audiocd.cpp

@@ -0,0 +1,310 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef MACOSX
+
+#include <sys/param.h>
+#include <sys/ucred.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+
+#include "common/scummsys.h"
+
+#include "audio/audiostream.h"
+#include "audio/decoders/aiff.h"
+#include "audio/timestamp.h"
+#include "common/config-manager.h"
+#include "common/debug.h"
+#include "common/fs.h"
+#include "common/hashmap.h"
+#include "common/textconsole.h"
+#include "backends/audiocd/default/default-audiocd.h"
+#include "backends/audiocd/macosx/macosx-audiocd.h"
+#include "backends/fs/stdiostream.h"
+
+// Partially based on SDL's code
+
+/**
+ * The macOS audio cd manager. Implements real audio cd playback.
+ */
+class MacOSXAudioCDManager : public DefaultAudioCDManager {
+public:
+	MacOSXAudioCDManager() {}
+	~MacOSXAudioCDManager();
+
+	bool open() override;
+	void close() override;
+	bool play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+			Audio::Mixer::SoundType soundType) override;
+
+protected:
+	bool openCD(int drive) override;
+	bool openCD(const Common::Path &drive) override;
+
+private:
+	struct Drive {
+		Drive(const Common::Path &m, const Common::Path &d, const Common::String &f) :
+			mountPoint(m), deviceName(d), fsType(f) {}
+
+		Common::Path mountPoint;
+		Common::Path deviceName;
+		Common::String fsType;
+	};
+
+	typedef Common::Array<Drive> DriveList;
+	DriveList detectAllDrives();
+
+	bool findTrackNames(const Common::Path &drivePath);
+
+	Common::HashMap<uint, Common::Path> _trackMap;
+};
+
+MacOSXAudioCDManager::~MacOSXAudioCDManager() {
+	close();
+}
+
+bool MacOSXAudioCDManager::open() {
+	close();
+
+	if (openRealCD())
+		return true;
+
+	return DefaultAudioCDManager::open();
+}
+
+/**
+ * Find the base disk number of device name.
+ * Returns -1 if mount point is not /dev/disk*
+ */
+static int findBaseDiskNumber(const Common::Path &diskPath) {
+	Common::String diskName(diskPath.toString('/'));
+	if (!diskName.hasPrefix("/dev/disk"))
+		return -1;
+
+	const char *startPtr = diskName.c_str() + 9;
+	char *endPtr;
+	int baseDiskNumber = strtol(startPtr, &endPtr, 10);
+	if (startPtr == endPtr)
+		return -1;
+
+	return baseDiskNumber;
+}
+
+bool MacOSXAudioCDManager::openCD(int drive) {
+	DriveList allDrives = detectAllDrives();
+	if (allDrives.empty())
+		return false;
+
+	DriveList cddaDrives;
+
+	// Try to get the volume related to the game's path
+	if (ConfMan.hasKey("path")) {
+		Common::String gamePath = ConfMan.getPath("path").toString(Common::Path::kNativeSeparator);
+		struct statfs gamePathStat;
+		if (statfs(gamePath.c_str(), &gamePathStat) == 0) {
+			int baseDiskNumber = findBaseDiskNumber(gamePathStat.f_mntfromname);
+			if (baseDiskNumber >= 0) {
+				// Look for a CDDA drive with the same base disk number
+				for (uint32 i = 0; i < allDrives.size(); i++) {
+					if (allDrives[i].fsType == "cddafs" && findBaseDiskNumber(allDrives[i].deviceName) == baseDiskNumber) {
+						debug(1, "Preferring drive '%s'", allDrives[i].mountPoint.toString(Common::Path::kNativeSeparator).c_str());
+						cddaDrives.push_back(allDrives[i]);
+						allDrives.remove_at(i);
+						break;
+					}
+				}
+			}
+		}
+	}
+
+	// Add the remaining CDDA drives to the CDDA list
+	for (uint32 i = 0; i < allDrives.size(); i++)
+		if (allDrives[i].fsType == "cddafs")
+			cddaDrives.push_back(allDrives[i]);
+
+	if (drive >= (int)cddaDrives.size())
+		return false;
+
+	debug(1, "Using '%s' as the CD drive", cddaDrives[drive].mountPoint.toString(Common::Path::kNativeSeparator).c_str());
+
+	return findTrackNames(cddaDrives[drive].mountPoint);
+}
+
+bool MacOSXAudioCDManager::openCD(const Common::Path &drive) {
+	DriveList drives = detectAllDrives();
+
+	for (uint32 i = 0; i < drives.size(); i++) {
+		if (drives[i].fsType != "cddafs")
+			continue;
+
+		if (drives[i].mountPoint == drive || drives[i].deviceName == drive) {
+			debug(1, "Using '%s' as the CD drive", drives[i].mountPoint.toString(Common::Path::kNativeSeparator).c_str());
+			return findTrackNames(drives[i].mountPoint);
+		}
+	}
+
+	return false;
+}
+
+void MacOSXAudioCDManager::close() {
+	DefaultAudioCDManager::close();
+	_trackMap.clear();
+}
+
+MacOSXAudioCDManager::DriveList MacOSXAudioCDManager::detectAllDrives() {
+	int foundDrives = getfsstat(nullptr, 0, MNT_WAIT);
+	if (foundDrives <= 0)
+		return DriveList();
+
+	// Fetch the lists of drives
+	struct statfs *driveStats = (struct statfs *)malloc(sizeof(struct statfs) * foundDrives);
+	foundDrives = getfsstat(driveStats, sizeof(struct statfs) * foundDrives, MNT_NOWAIT);
+	if (foundDrives <= 0) {
+		free(driveStats);
+		return DriveList();
+	}
+
+	DriveList drives;
+	for (int i = 0; i < foundDrives; i++)
+		drives.push_back(Drive(Common::Path(driveStats[i].f_mntonname, Common::Path::kNativeSeparator),
+			Common::Path(driveStats[i].f_mntfromname, Common::Path::kNativeSeparator), driveStats[i].f_fstypename));
+
+	free(driveStats);
+	return drives;
+}
+
+bool MacOSXAudioCDManager::play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+		Audio::Mixer::SoundType soundType) {
+	// Prefer emulation
+	if (DefaultAudioCDManager::play(track, numLoops, startFrame, duration, onlyEmulate, soundType))
+		return true;
+
+	// If we're set to only emulate, or have no CD drive, return here
+	if (onlyEmulate || !_trackMap.contains(track))
+		return false;
+
+	if (!numLoops && !startFrame)
+		return false;
+
+	// Now load the AIFF track from the name
+	Common::Path fileName = _trackMap[track];
+	Common::SeekableReadStream *stream = StdioStream::makeFromPath(fileName.toString(Common::Path::kNativeSeparator).c_str(), StdioStream::WriteMode_Read);
+
+	if (!stream) {
+		warning("Failed to open track '%s'", fileName.toString(Common::Path::kNativeSeparator).c_str());
+		return false;
+	}
+
+	Audio::AudioStream *audioStream = Audio::makeAIFFStream(stream, DisposeAfterUse::YES);
+	if (!audioStream) {
+		warning("Track '%s' is not an AIFF track", fileName.toString(Common::Path::kNativeSeparator).c_str());
+		return false;
+	}
+
+	Audio::SeekableAudioStream *seekStream = dynamic_cast<Audio::SeekableAudioStream *>(audioStream);
+	if (!seekStream) {
+		warning("Track '%s' is not seekable", fileName.toString(Common::Path::kNativeSeparator).c_str());
+		return false;
+	}
+
+	Audio::Timestamp start = Audio::Timestamp(0, startFrame, 75);
+	Audio::Timestamp end = duration ? Audio::Timestamp(0, startFrame + duration, 75) : seekStream->getLength();
+
+	// Fake emulation since we're really playing an AIFF file
+	_emulating = true;
+
+	_mixer->playStream(soundType, &_handle,
+	                   Audio::makeLoopingAudioStream(seekStream, start, end, (numLoops < 1) ? numLoops + 1 : numLoops), -1, _cd.volume, _cd.balance);
+	return true;
+}
+
+bool MacOSXAudioCDManager::findTrackNames(const Common::Path &drivePath) {
+	Common::FSNode directory(drivePath);
+
+	if (!directory.exists()) {
+		warning("Directory '%s' does not exist", drivePath.toString(Common::Path::kNativeSeparator).c_str());
+		return false;
+	}
+
+	if (!directory.isDirectory()) {
+		warning("'%s' is not a directory", drivePath.toString(Common::Path::kNativeSeparator).c_str());
+		return false;
+	}
+
+	Common::FSList children;
+	if (!directory.getChildren(children, Common::FSNode::kListFilesOnly) || children.empty()) {
+		warning("Failed to find children for '%s'", drivePath.toString(Common::Path::kNativeSeparator).c_str());
+		return false;
+	}
+
+	for (uint32 i = 0; i < children.size(); i++) {
+		if (!children[i].isDirectory()) {
+			Common::String fileName = children[i].getFileName();
+
+			if (fileName.hasSuffix(".aiff") || fileName.hasSuffix(".cdda")) {
+				uint j = 0;
+
+				// Search for the track ID in the file name.
+				for (; j < fileName.size() && !Common::isDigit(fileName[j]); j++)
+					;
+
+				const char *trackIDString = fileName.c_str() + j;
+				char *endPtr = nullptr;
+				long trackID = strtol(trackIDString, &endPtr, 10);
+
+				if (trackIDString != endPtr && trackID > 0 && (unsigned long)trackID < UINT_MAX) {
+					_trackMap[trackID - 1] = drivePath.appendComponent(fileName);
+				} else {
+					warning("Invalid track file name: '%s'", fileName.c_str());
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+AudioCDManager *createMacOSXAudioCDManager() {
+	return new MacOSXAudioCDManager();
+}
+
+#endif // MACOSX

backends/audiocd/macosx/macosx-audiocd.h

@@ -0,0 +1,59 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_MACOSX_H
+#define BACKENDS_AUDIOCD_MACOSX_H
+
+#include "common/scummsys.h"
+
+#ifdef MACOSX
+
+class AudioCDManager;
+
+/**
+ * Create an audio CD manager for macOS
+ */
+AudioCDManager *createMacOSXAudioCDManager();
+
+#endif
+
+#endif //

backends/audiocd/sdl/sdl-audiocd.cpp

@@ -0,0 +1,172 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/scummsys.h"
+
+#if defined(SDL_BACKEND)
+
+#include "backends/audiocd/sdl/sdl-audiocd.h"
+
+#if !SDL_VERSION_ATLEAST(2, 0, 0)
+
+#include "common/textconsole.h"
+
+SdlAudioCDManager::SdlAudioCDManager()
+	:
+	_cdrom(0),
+	_cdTrack(0),
+	_cdNumLoops(0),
+	_cdStartFrame(0),
+	_cdDuration(0),
+	_cdEndTime(0),
+	_cdStopTime(0) {
+
+}
+
+SdlAudioCDManager::~SdlAudioCDManager() {
+	close();
+}
+
+bool SdlAudioCDManager::open() {
+	close();
+
+	if (openRealCD())
+		return true;
+
+	return DefaultAudioCDManager::open();
+}
+
+bool SdlAudioCDManager::openCD(int drive) {
+	if (SDL_InitSubSystem(SDL_INIT_CDROM) == -1)
+		_cdrom = NULL;
+	else {
+		_cdrom = SDL_CDOpen(drive);
+		// Did it open? Check if _cdrom is NULL
+		if (!_cdrom) {
+			warning("Couldn't open drive: %s", SDL_GetError());
+		} else {
+			_cdNumLoops = 0;
+			_cdStopTime = 0;
+			_cdEndTime = 0;
+		}
+	}
+
+	return (_cdrom != NULL);
+}
+
+void SdlAudioCDManager::close() {
+	DefaultAudioCDManager::close();
+
+	if (_cdrom) {
+		SDL_CDStop(_cdrom);
+		SDL_CDClose(_cdrom);
+		_cdrom = 0;
+	}
+}
+
+void SdlAudioCDManager::stop() {
+	DefaultAudioCDManager::stop();
+
+	// Stop CD Audio in 1/10th of a second
+	_cdStopTime = SDL_GetTicks() + 100;
+	_cdNumLoops = 0;
+}
+
+bool SdlAudioCDManager::play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+		Audio::Mixer::SoundType soundType) {
+	// Prefer emulation
+	if (DefaultAudioCDManager::play(track, numLoops, startFrame, duration, onlyEmulate, soundType))
+		return true;
+
+	// If we're set to only emulate, or have no CD, return here
+	if (onlyEmulate || !_cdrom)
+		return false;
+
+	if (!numLoops && !startFrame)
+		return false;
+
+	// FIXME: Explain this.
+	if (duration > 0)
+		duration += 5;
+
+	_cdTrack = track;
+	_cdNumLoops = numLoops;
+	_cdStartFrame = startFrame;
+
+	SDL_CDStatus(_cdrom);
+	if (startFrame == 0 && duration == 0)
+		SDL_CDPlayTracks(_cdrom, track, 0, 1, 0);
+	else
+		SDL_CDPlayTracks(_cdrom, track, startFrame, 0, duration);
+	_cdDuration = duration;
+	_cdStopTime = 0;
+	_cdEndTime = SDL_GetTicks() + _cdrom->track[track].length * 1000 / CD_FPS;
+
+	return true;
+}
+
+bool SdlAudioCDManager::isPlaying() const {
+	if (DefaultAudioCDManager::isPlaying())
+		return true;
+
+	if (!_cdrom)
+		return false;
+
+	return (_cdNumLoops != 0 && (SDL_GetTicks() < _cdEndTime || SDL_CDStatus(_cdrom) == CD_PLAYING));
+}
+
+void SdlAudioCDManager::update() {
+	DefaultAudioCDManager::update();
+
+	if (!_cdrom)
+		return;
+
+	if (_cdStopTime != 0 && SDL_GetTicks() >= _cdStopTime) {
+		SDL_CDStop(_cdrom);
+		_cdNumLoops = 0;
+		_cdStopTime = 0;
+		return;
+	}
+
+	if (_cdNumLoops == 0 || SDL_GetTicks() < _cdEndTime)
+		return;
+
+	if (_cdNumLoops != 1 && SDL_CDStatus(_cdrom) != CD_STOPPED) {
+		// Wait another second for it to be done
+		_cdEndTime += 1000;
+		return;
+	}
+
+	if (_cdNumLoops > 0)
+		_cdNumLoops--;
+
+	if (_cdNumLoops != 0) {
+		if (_cdStartFrame == 0 && _cdDuration == 0)
+			SDL_CDPlayTracks(_cdrom, _cdTrack, 0, 1, 0);
+		else
+			SDL_CDPlayTracks(_cdrom, _cdTrack, _cdStartFrame, 0, _cdDuration);
+		_cdEndTime = SDL_GetTicks() + _cdrom->track[_cdTrack].length * 1000 / CD_FPS;
+	}
+}
+
+#endif // !SDL_VERSION_ATLEAST(2, 0, 0)
+
+#endif

backends/audiocd/sdl/sdl-audiocd.h

@@ -0,0 +1,57 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_SDL_H
+#define BACKENDS_AUDIOCD_SDL_H
+
+#include "backends/audiocd/default/default-audiocd.h"
+
+#include "backends/platform/sdl/sdl-sys.h"
+
+#if !SDL_VERSION_ATLEAST(2, 0, 0)
+
+/**
+ * The SDL audio cd manager. Implements real audio cd playback.
+ */
+class SdlAudioCDManager : public DefaultAudioCDManager {
+public:
+	SdlAudioCDManager();
+	virtual ~SdlAudioCDManager();
+
+	bool open() override;
+	void close() override;
+	bool play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+			Audio::Mixer::SoundType soundType) override;
+	void stop() override;
+	bool isPlaying() const override;
+	void update() override;
+
+protected:
+	bool openCD(int drive) override;
+
+	SDL_CD *_cdrom;
+	int _cdTrack, _cdNumLoops, _cdStartFrame, _cdDuration;
+	uint32 _cdEndTime, _cdStopTime;
+};
+
+#endif // !SDL_VERSION_ATLEAST(2, 0, 0)
+
+#endif

backends/audiocd/win32/win32-audiocd.cpp

@@ -0,0 +1,415 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef WIN32
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#include "backends/audiocd/win32/win32-audiocd.h"
+
+#include "audio/audiostream.h"
+#include "backends/audiocd/audiocd-stream.h"
+#include "backends/audiocd/default/default-audiocd.h"
+#include "backends/platform/sdl/win32/win32_wrapper.h"
+#include "common/array.h"
+#include "common/config-manager.h"
+#include "common/debug.h"
+#include "common/fs.h"
+#include "common/mutex.h"
+#include "common/queue.h"
+#include "common/str.h"
+#include "common/timer.h"
+
+#include <winioctl.h>
+#if defined(__MINGW32_VERSION)
+// Classic MinGW uses non standard paths for DDK headers.
+// __MINGW32_VERSION is not defined by the not classic Ming-w64
+#include <ddk/ntddcdrm.h>
+#else
+#include <ntddcdrm.h>
+#endif
+
+class Win32AudioCDStream final : public AudioCDStream {
+public:
+	Win32AudioCDStream(HANDLE handle, const TRACK_DATA &startEntry, const TRACK_DATA &endEntry);
+	~Win32AudioCDStream();
+
+protected:
+	uint getStartFrame() const override;
+	uint getEndFrame() const override;
+	bool readFrame(int frame, int16 *buffer) override;
+
+private:
+	HANDLE _driveHandle;
+	const TRACK_DATA &_startEntry, &_endEntry;
+
+	enum {
+		// The CD-ROM pre-gap is 2s
+		kPreGapFrames = kFramesPerSecond * 2
+	};
+
+	static int getFrameCount(const TRACK_DATA &data) {
+		int time = data.Address[1];
+		time *= kSecondsPerMinute;
+		time += data.Address[2];
+		time *= kFramesPerSecond;
+		time += data.Address[3];
+		return time;
+	}
+};
+
+Win32AudioCDStream::Win32AudioCDStream(HANDLE handle, const TRACK_DATA &startEntry, const TRACK_DATA &endEntry) :
+	_driveHandle(handle), _startEntry(startEntry), _endEntry(endEntry) {
+	// We fill the buffer here already to prevent any out of sync issues due
+	// to the CD not yet having spun up.
+	startTimer(true);
+}
+
+Win32AudioCDStream::~Win32AudioCDStream() {
+	stopTimer();
+}
+
+uint Win32AudioCDStream::getStartFrame() const {
+	return getFrameCount(_startEntry);
+}
+
+uint Win32AudioCDStream::getEndFrame() const {
+	return getFrameCount(_endEntry);
+}
+
+bool Win32AudioCDStream::readFrame(int frame, int16 *buffer) {
+	// Request to read that frame
+	RAW_READ_INFO readAudio;
+	memset(&readAudio, 0, sizeof(readAudio));
+	readAudio.DiskOffset.QuadPart = (frame - kPreGapFrames) * 2048;
+	readAudio.SectorCount = 1;
+	readAudio.TrackMode = CDDA;
+
+	DWORD bytesReturned;
+	return DeviceIoControl(
+	           _driveHandle,
+	           IOCTL_CDROM_RAW_READ,
+	           &readAudio,
+	           sizeof(readAudio),
+	           buffer,
+	           kBytesPerFrame,
+	           &bytesReturned,
+	           nullptr);
+}
+
+
+class Win32AudioCDManager final : public DefaultAudioCDManager {
+public:
+	Win32AudioCDManager();
+	~Win32AudioCDManager();
+
+	bool open() override;
+	void close() override;
+	bool play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+			Audio::Mixer::SoundType soundType) override;
+	bool isDataAndCDAudioReadFromSameCD() override;
+
+protected:
+	bool openCD(int drive) override;
+	bool openCD(const Common::Path &drive) override;
+
+private:
+	bool loadTOC();
+
+	typedef Common::Array<char> DriveList;
+	DriveList detectDrives();
+	bool tryAddDrive(char drive, DriveList &drives);
+
+	HANDLE _driveHandle;
+	int _firstTrack, _lastTrack;
+	Common::Array<TRACK_DATA> _tocEntries;
+};
+
+Win32AudioCDManager::Win32AudioCDManager() {
+	_driveHandle = INVALID_HANDLE_VALUE;
+	_firstTrack = _lastTrack = 0;
+}
+
+Win32AudioCDManager::~Win32AudioCDManager() {
+	close();
+}
+
+bool Win32AudioCDManager::open() {
+	close();
+
+	if (openRealCD())
+		return true;
+
+	return DefaultAudioCDManager::open();
+}
+
+bool Win32AudioCDManager::openCD(int drive) {
+	// Fetch the drive list
+	DriveList drives = detectDrives();
+	if (drive >= (int)drives.size())
+		return false;
+
+	debug(1, "Opening CD drive %c:\\", drives[drive]);
+
+	// Construct the drive path and try to open it
+	Common::String drivePath = Common::String::format("\\\\.\\%c:", drives[drive]);
+	TCHAR *tDrivePath = Win32::stringToTchar(drivePath);
+	_driveHandle = CreateFile(tDrivePath, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
+	free(tDrivePath);
+	if (_driveHandle == INVALID_HANDLE_VALUE) {
+		warning("Failed to open drive %c:\\, error %d", drives[drive], (int)GetLastError());
+		return false;
+	}
+
+	if (!loadTOC()) {
+		close();
+		return false;
+	}
+
+	return true;
+}
+
+bool Win32AudioCDManager::openCD(const Common::Path &drive) {
+	// Just some bounds checking
+	if (drive.empty())
+		return false;
+
+	Common::String driveS(drive.toString(Common::Path::kNativeSeparator));
+
+	if (driveS.size() > 3)
+		return false;
+
+	if (!Common::isAlpha(driveS[0]) || driveS[1] != ':')
+		return false;
+
+	if (driveS[2] != 0 && driveS[2] != '\\')
+		return false;
+
+	DriveList drives;
+	if (!tryAddDrive(toupper(driveS[0]), drives))
+		return false;
+
+	// Construct the drive path and try to open it
+	Common::String drivePath = Common::String::format("\\\\.\\%c:", drives[0]);
+	TCHAR *tDrivePath = Win32::stringToTchar(drivePath);
+	_driveHandle = CreateFile(tDrivePath, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
+	free(tDrivePath);
+	if (_driveHandle == INVALID_HANDLE_VALUE) {
+		warning("Failed to open drive %c:\\, error %d", drives[0], (int)GetLastError());
+		return false;
+	}
+
+	if (!loadTOC()) {
+		close();
+		return false;
+	}
+
+	return true;
+}
+
+void Win32AudioCDManager::close() {
+	DefaultAudioCDManager::close();
+
+	if (_driveHandle != INVALID_HANDLE_VALUE) {
+		CloseHandle(_driveHandle);
+		_driveHandle = INVALID_HANDLE_VALUE;
+	}
+
+	_firstTrack = _lastTrack = 0;
+	_tocEntries.clear();
+}
+
+bool Win32AudioCDManager::play(int track, int numLoops, int startFrame, int duration, bool onlyEmulate,
+		Audio::Mixer::SoundType soundType) {
+	// Prefer emulation
+	if (DefaultAudioCDManager::play(track, numLoops, startFrame, duration, onlyEmulate, soundType))
+		return true;
+
+	// If we're set to only emulate, or have no CD drive, return here
+	if (onlyEmulate || _driveHandle == INVALID_HANDLE_VALUE)
+		return false;
+
+	// HACK: For now, just assume that track number is right
+	// That only works because ScummVM uses the wrong track number anyway
+
+	if (track >= (int)_tocEntries.size() - 1) {
+		warning("No such track %d", track);
+		return false;
+	}
+
+	// Bail if the track isn't an audio track
+	if ((_tocEntries[track].Control & 0x04) != 0) {
+		warning("Track %d is not audio", track);
+		return false;
+	}
+
+	// Create the AudioStream and play it
+	debug(1, "Playing CD track %d", track);
+
+	Audio::SeekableAudioStream *audioStream = new Win32AudioCDStream(_driveHandle, _tocEntries[track], _tocEntries[track + 1]);
+
+	Audio::Timestamp start = Audio::Timestamp(0, startFrame, 75);
+	Audio::Timestamp end = (duration == 0) ? audioStream->getLength() : Audio::Timestamp(0, startFrame + duration, 75);
+
+	// Fake emulation since we're really playing an AudioStream
+	_emulating = true;
+
+	_mixer->playStream(
+	    soundType,
+	    &_handle,
+	    Audio::makeLoopingAudioStream(audioStream, start, end, (numLoops < 1) ? numLoops + 1 : numLoops),
+	    -1,
+	    _cd.volume,
+	    _cd.balance,
+	    DisposeAfterUse::YES,
+	    true);
+	return true;
+}
+
+bool Win32AudioCDManager::loadTOC() {
+	CDROM_READ_TOC_EX tocRequest;
+	memset(&tocRequest, 0, sizeof(tocRequest));
+	tocRequest.Format = CDROM_READ_TOC_EX_FORMAT_TOC;
+	tocRequest.Msf = 1;
+	tocRequest.SessionTrack = 0;
+
+	DWORD bytesReturned;
+	CDROM_TOC tocData;
+	bool result = DeviceIoControl(
+	                  _driveHandle,
+	                  IOCTL_CDROM_READ_TOC_EX,
+	                  &tocRequest,
+	                  sizeof(tocRequest),
+	                  &tocData,
+	                  sizeof(tocData),
+	                  &bytesReturned,
+	                  nullptr);
+	if (!result) {
+		debug("Failed to query the CD TOC: %d", (int)GetLastError());
+		return false;
+	}
+
+	_firstTrack = tocData.FirstTrack;
+	_lastTrack = tocData.LastTrack;
+#if 0
+	debug("First Track: %d", tocData.FirstTrack);
+	debug("Last Track: %d", tocData.LastTrack);
+#endif
+
+	for (uint32 i = 0; i < (bytesReturned - 4) / sizeof(TRACK_DATA); i++)
+		_tocEntries.push_back(tocData.TrackData[i]);
+
+#if 0
+	for (uint32 i = 0; i < _tocEntries.size(); i++) {
+		const TRACK_DATA &entry = _tocEntries[i];
+		debug("Entry:");
+		debug("\tTrack: %d", entry.TrackNumber);
+		debug("\tAdr: %d", entry.Adr);
+		debug("\tCtrl: %d", entry.Control);
+		debug("\tMSF: %d:%d:%d\n", entry.Address[1], entry.Address[2], entry.Address[3]);
+	}
+#endif
+
+	return true;
+}
+
+Win32AudioCDManager::DriveList Win32AudioCDManager::detectDrives() {
+	DriveList drives;
+
+	// Try to get the game path's drive
+	char gameDrive = 0;
+	if (ConfMan.hasKey("path")) {
+		Common::Path gamePath = ConfMan.getPath("path");
+		TCHAR *tGamePath = Win32::stringToTchar(gamePath.toString(Common::Path::kNativeSeparator));
+		TCHAR fullPath[MAX_PATH];
+		DWORD result = GetFullPathName(tGamePath, MAX_PATH, fullPath, nullptr);
+		free(tGamePath);
+
+		if (result > 0 && result < sizeof(fullPath) && Common::isAlpha(fullPath[0]) && fullPath[1] == ':' && tryAddDrive(toupper(fullPath[0]), drives))
+			gameDrive = drives[0];
+	}
+
+	// Try adding the rest of the drives
+	for (char drive = 'A'; drive <= 'Z'; drive++)
+		if (drive != gameDrive)
+			tryAddDrive(drive, drives);
+
+	return drives;
+}
+
+bool Win32AudioCDManager::tryAddDrive(char drive, DriveList &drives) {
+	if (!Win32::isDriveCD(drive)) {
+		return false;
+	}
+
+	debug(2, "Detected drive %c:\\ as a CD drive", drive);
+	drives.push_back(drive);
+	return true;
+}
+
+bool Win32AudioCDManager::isDataAndCDAudioReadFromSameCD() {
+	// It is a known bug under Windows that games that play CD audio cause
+	// ScummVM to crash if the data files are read from the same CD.
+	char driveLetter;
+	Common::Path gameDataDir(ConfMan.getPath("path"));
+	if (!gameDataDir.empty()) {
+		driveLetter = gameDataDir.toString(Common::Path::kNativeSeparator)[0];
+	} else {
+		// That's it! I give up!
+		Common::FSNode currentDir(".");
+		gameDataDir = currentDir.getPath();
+		if (!gameDataDir.empty()) {
+			driveLetter = gameDataDir.toString(Common::Path::kNativeSeparator)[0];
+		} else {
+			return false;
+		}
+	}
+
+	return Win32::isDriveCD(driveLetter);
+}
+
+AudioCDManager *createWin32AudioCDManager() {
+	return new Win32AudioCDManager();
+}
+
+#endif // WIN32

backends/audiocd/win32/win32-audiocd.h

@@ -0,0 +1,58 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Original license header:
+ *
+ * Cabal - Legacy Game Implementations
+ *
+ * Cabal 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef BACKENDS_AUDIOCD_WIN32_H
+#define BACKENDS_AUDIOCD_WIN32_H
+
+#ifdef WIN32
+
+class AudioCDManager;
+
+/**
+ * Create an AudioCDManager using the Win32 API
+ */
+AudioCDManager *createWin32AudioCDManager();
+
+#endif
+
+#endif
+