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/>.
 *
 */
 
#ifndef DREAMWEB_SOUND_H
#define DREAMWEB_SOUND_H
 
#include "common/array.h"
#include "common/str.h"
#include "audio/mixer.h"
 
namespace DreamWeb {
 
class DreamWebEngine;
 
class DreamWebSound {
public:
    DreamWebSound(DreamWebEngine *vm);
    ~DreamWebSound();
 
    bool loadSpeech(byte type1, int idx1, byte type2, int idx2);
    void volumeSet(uint8 value) { _volume = value; }
    void volumeChange(uint8 value, int8 direction);
    void playChannel0(uint8 index, uint8 repeat);
    void playChannel1(uint8 index);
    uint8 getChannel0Playing() { return _channel0Playing; }
    bool isChannel1Playing() { return _channel1Playing != 255; }
    void cancelCh0();
    void cancelCh1();
    void loadRoomsSample(uint8 sample);
    void soundHandler();
    void loadSounds(uint bank, const Common::String &suffix);
 
private:
    DreamWebEngine *_vm;
 
    struct Sample {
        uint offset;
        uint size;
        Sample(): offset(), size() {}
    };
 
    struct SoundData {
        Common::Array<Sample> samples;
        Common::Array<uint8> data;
    };
 
    SoundData _soundData[2];
    Common::Array<uint8> _speechData;
 
    Audio::SoundHandle _channelHandle[2];
 
    uint8 _currentSample;
    uint8 _channel0Playing;
    uint8 _channel0Repeat;
    bool _channel0NewSound;
    uint8 _channel1Playing;
    bool _channel1NewSound;
 
    uint8 _volume;
    uint8 _volumeTo;
    int8 _volumeDirection;
    uint8 _volumeCount;
 
    void volumeAdjust();
    void playSound(uint8 channel, uint8 id, uint8 loops);
    void stopSound(uint8 channel);
    bool loadSpeech(const Common::String &filename);
};
 
} // End of namespace DreamWeb
 
#endif