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engines/cryo/sound.h

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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/>.
+ *
+ */
+
+#pragma once
+
+#include "audio/audiostream.h"
+#include "audio/mixer.h"
+#include "audio/decoders/raw.h"
+
+#include "cryo/cryolib.h"
+
+namespace Cryo {
+
+class CryoEngine;
+
+class CSoundChannel {
+private:
+	Audio::Mixer *_mixer;
+	Audio::QueuingAudioStream *_audioStream;
+	Audio::SoundHandle _soundHandle;
+	unsigned int _sampleRate;
+	bool _stereo;
+	unsigned int _bufferFlags;
+
+	void applyVolumeChange();
+
+public:
+	CSoundChannel(Audio::Mixer *mixer, unsigned int sampleRate, bool stereo, bool is16bits = false);
+	~CSoundChannel();
+
+	// Queue a new buffer, cancel any previously queued buffers if playNow is set
+	void queueBuffer(byte *buffer, unsigned int size, bool playNow = false, bool playQueue = true, bool buffering = true);
+
+	// Play any queued buffers
+	void play();
+
+	// Stop playing and purge play queue
+	void stop();
+
+	// How many buffers in queue (including currently playing one)
+	unsigned int numQueued();
+
+	// Volume control
+	int _volumeLeft, _volumeRight;
+	unsigned int getVolume();
+	void setVolume(unsigned int volumeLeft, unsigned int volumeRight);
+	void setVolumeLeft(unsigned int volume);
+	void setVolumeRight(unsigned int volume);
+};
+
+}