Initial commit

engines/vcruise/audio_player.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/>.
+ *
+ */
+
+#include "vcruise/audio_player.h"
+
+namespace VCruise {
+
+AudioPlayer::AudioPlayer(Audio::Mixer *mixer, const Common::SharedPtr<Audio::AudioStream> &baseStream, Audio::Mixer::SoundType soundType)
+	: _exhausted(false), _isPlaying(false), _mixer(mixer), _baseStream(baseStream), _soundType(soundType) {
+}
+
+AudioPlayer::~AudioPlayer() {
+	stop();
+}
+
+int AudioPlayer::readBuffer(int16 *buffer, const int numSamplesTimesChannelCount) {
+	Common::StackLock lock(_mutex);
+
+	int samplesRead = 0;
+	if (_exhausted)
+		return 0;
+
+	samplesRead = _baseStream->readBuffer(buffer, numSamplesTimesChannelCount);
+
+	if (samplesRead != numSamplesTimesChannelCount)
+		_exhausted = true;
+
+	return samplesRead;
+}
+
+bool AudioPlayer::isStereo() const {
+	return _baseStream->isStereo();
+}
+
+int AudioPlayer::getRate() const {
+	return _baseStream->getRate();
+}
+
+bool AudioPlayer::endOfData() const {
+	return _exhausted;
+}
+
+void AudioPlayer::play(byte volume, int8 balance) {
+	if (!_isPlaying) {
+		_isPlaying = true;
+		_exhausted = false;
+		_mixer->playStream(_soundType, &_handle, this, -1, volume, balance, DisposeAfterUse::NO);
+	}
+}
+
+void AudioPlayer::setVolume(byte volume) {
+	_mixer->setChannelVolume(_handle, volume);
+}
+
+void AudioPlayer::setBalance(int8 balance) {
+	_mixer->setChannelBalance(_handle, balance);
+}
+
+void AudioPlayer::setVolumeAndBalance(byte volume, int8 balance) {
+	if (_isPlaying) {
+		Common::StackLock lock(_mixer->mutex());
+
+		_mixer->setChannelVolume(_handle, volume);
+		_mixer->setChannelBalance(_handle, balance);
+	}
+}
+
+void AudioPlayer::stop() {
+	if (_isPlaying) {
+		_mixer->stopHandle(_handle);
+		_isPlaying = false;
+	}
+
+	_exhausted = true;
+}
+
+} // End of namespace VCruise