sound.h

/* 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);
};
 
}