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 NEVERHOOD_SOUND_H
#define NEVERHOOD_SOUND_H
 
#include "audio/audiostream.h"
#include "common/array.h"
#include "neverhood/resourceman.h"
 
namespace Common {
class SeekableReadStream;
}
 
namespace Audio {
class SoundHandle;
}
 
namespace Neverhood {
 
class NeverhoodEngine;
class AudioResourceManSoundItem;
class AudioResourceManMusicItem;
 
class SoundResource {
public:
    SoundResource(NeverhoodEngine *vm);
    ~SoundResource();
    bool isPlaying();
    void load(uint32 fileHash);
    void unload();
    void play(uint32 fileHash);
    void play();
    void playLooping();
    void stop();
    void setVolume(int16 volume);
    void setPan(int16 pan);
protected:
    NeverhoodEngine *_vm;
    int16 _soundIndex;
    AudioResourceManSoundItem *getSoundItem();
};
 
class MusicResource {
public:
    MusicResource(NeverhoodEngine *vm);
    bool isPlaying();
    void load(uint32 fileHash);
    void unload();
    void play(int16 fadeVolumeStep);
    void stop(int16 fadeVolumeStep);
    void setVolume(int16 volume);
protected:
    NeverhoodEngine *_vm;
    int16 _musicIndex;
    AudioResourceManMusicItem *getMusicItem();
};
 
class MusicItem {
public:
    MusicItem(NeverhoodEngine *vm, uint32 groupNameHash, uint32 musicFileHash);
    ~MusicItem();
    void startMusic(int16 countdown, int16 fadeVolumeStep);
    void stopMusic(int16 countdown, int16 fadeVolumeStep);
    void update();
    uint32 getGroupNameHash() const { return _groupNameHash; }
    uint32 getFileHash() const { return _fileHash; }
protected:
    NeverhoodEngine *_vm;
    uint32 _groupNameHash;
    uint32 _fileHash;
    bool _play;
    bool _stop;
    int16 _fadeVolumeStep;
    int16 _countdown;
    MusicResource *_musicResource;
};
 
class SoundItem {
public:
    SoundItem(NeverhoodEngine *vm, uint32 groupNameHash, uint32 soundFileHash,
        bool playOnceAfterRandomCountdown, int16 minCountdown, int16 maxCountdown,
        bool playOnceAfterCountdown, int16 initialCountdown, bool playLooping, int16 currCountdown);
    ~SoundItem();
    void setSoundParams(bool playOnceAfterRandomCountdown, int16 minCountdown, int16 maxCountdown,
        int16 firstMinCountdown, int16 firstMaxCountdown);
    void playSoundLooping();
    void stopSound();
    void setVolume(int volume);
    void update();
    void setPlayOnceAfterCountdown(bool playOnceAfterCountdown) { _playOnceAfterCountdown = playOnceAfterCountdown; }
    uint32 getGroupNameHash() const { return _groupNameHash; }
    uint32 getFileHash() const { return _fileHash; }
    int16 getCurrCountdown() const { return _currCountdown; }
protected:
    NeverhoodEngine *_vm;
    uint32 _groupNameHash;
    uint32 _fileHash;
    bool _playOnceAfterRandomCountdown;
    int16 _minCountdown;
    int16 _maxCountdown;
    bool _playOnceAfterCountdown;
    int16 _initialCountdown;
    bool _playLooping;
    int16 _currCountdown;
    SoundResource *_soundResource;
};
 
class SoundMan {
public:
    SoundMan(NeverhoodEngine *vm);
    ~SoundMan();
 
    void stopAllMusic();
    void stopAllSounds();
 
    // Music
    void addMusic(uint32 groupNameHash, uint32 musicFileHash);
    void deleteMusic(uint32 musicFileHash);
    void startMusic(uint32 musicFileHash, int16 countdown, int16 fadeVolumeStep);
    void stopMusic(uint32 musicFileHash, int16 countdown, int16 fadeVolumeStep);
 
    // Sound
    void addSound(uint32 groupNameHash, uint32 soundFileHash);
    void addSoundList(uint32 groupNameHash, const uint32 *soundFileHashList);
    void deleteSound(uint32 soundFileHash);
    void setSoundParams(uint32 soundFileHash, bool playOnceAfterRandomCountdown,
        int16 minCountdown, int16 maxCountdown, int16 firstMinCountdown, int16 firstMaxCountdown);
    void setSoundListParams(const uint32 *soundFileHashList, bool playOnceAfterRandomCountdown,
        int16 minCountdown, int16 maxCountdown, int16 firstMinCountdown, int16 firstMaxCountdown);
    void playSoundLooping(uint32 soundFileHash);
    void stopSound(uint32 soundFileHash);
    void setSoundVolume(uint32 soundFileHash, int volume);
 
    // Misc
    void update();
    void deleteGroup(uint32 groupNameHash);
    void deleteMusicGroup(uint32 groupNameHash);
    void deleteSoundGroup(uint32 groupNameHash);
    void playTwoSounds(uint32 groupNameHash, uint32 soundFileHash1, uint32 soundFileHash2, int16 initialCountdown);
    void playSoundThree(uint32 groupNameHash, uint32 soundFileHash);
    void setTwoSoundsPlayFlag(bool playOnceAfterCountdown);
    void setSoundThreePlayFlag(bool playOnceAfterCountdown);
 
protected:
    NeverhoodEngine *_vm;
 
    // TODO Find out what these special sounds are used for (door sounds?)
    int _soundIndex1, _soundIndex2;
    int16 _initialCountdown;
    bool _playOnceAfterCountdown;
 
    int _soundIndex3;
    int16 _initialCountdown3;
    bool _playOnceAfterCountdown3;
 
    Common::Array<MusicItem*> _musicItems;
    Common::Array<SoundItem*> _soundItems;
 
    MusicItem *getMusicItemByHash(uint32 musicFileHash);
    SoundItem *getSoundItemByHash(uint32 soundFileHash);
    int16 addMusicItem(MusicItem *musicItem);
    int16 addSoundItem(SoundItem *soundItem);
    void deleteSoundByIndex(int index);
 
};
 
class NeverhoodAudioStream : public Audio::AudioStream {
public:
    NeverhoodAudioStream(int rate, byte shiftValue, bool isLooping, DisposeAfterUse::Flag disposeStream, Common::SeekableReadStream *stream);
    ~NeverhoodAudioStream() override;
    int readBuffer(int16 *buffer, const int numSamples) override;
    bool isStereo() const override  { return _isStereo; }
    bool endOfData() const override { return _endOfData; }
    int getRate() const override { return _rate; }
private:
    const int _rate;
    const bool _isLooping;
    const bool _isStereo;
    const byte _shiftValue;
    const bool _isCompressed;
    int16 _prevValue;
    Common::DisposablePtr<Common::SeekableReadStream> _stream;
    bool _endOfData;
    byte *_buffer;
    enum {
        kSampleBufferLength = 2048
    };
    int fillBuffer(int maxSamples);
};
 
// TODO Rename these
 
class AudioResourceManSoundItem {
public:
    AudioResourceManSoundItem(NeverhoodEngine *vm, uint32 fileHash);
    ~AudioResourceManSoundItem();
    void loadSound();
    void unloadSound();
    void setVolume(int16 volume);
    void setPan(int16 pan);
    void playSound(bool looping);
    void stopSound();
    bool isPlaying();
protected:
    NeverhoodEngine *_vm;
    uint32 _fileHash;
    ResourceHandle _resourceHandle;
    const byte *_data;
    bool _isLoaded;
    bool _isPlaying;
    int16 _volume;
    int16 _panning;
    Audio::SoundHandle *_soundHandle;
};
 
class AudioResourceManMusicItem {
public:
    AudioResourceManMusicItem(NeverhoodEngine *vm, uint32 fileHash);
    ~AudioResourceManMusicItem();
    void playMusic(int16 fadeVolumeStep);
    void stopMusic(int16 fadeVolumeStep);
    void unloadMusic();
    void setVolume(int16 volume);
    void restart();
    void update();
    bool isPlaying() const { return _isPlaying; }
    bool canRestart() const { return _canRestart; }
    bool isTerminated() const { return _terminate; }
    uint32 getFileHash() const { return _fileHash; }
protected:
    NeverhoodEngine *_vm;
    uint32 _fileHash;
    bool _isPlaying;
    bool _canRestart;
    bool _terminate;
    int16 _volume;
    int16 _panning;
    bool _start;
    bool _isFadingIn;
    bool _isFadingOut;
    int16 _fadeVolume;
    int16 _fadeVolumeStep;
    Audio::SoundHandle *_soundHandle;
};
 
class AudioResourceMan {
public:
    AudioResourceMan(NeverhoodEngine *vm);
    ~AudioResourceMan();
 
    void stopAllMusic();
    void stopAllSounds();
 
    int16 addSound(uint32 fileHash);
    void removeSound(int16 soundIndex);
 
    int16 loadMusic(uint32 fileHash);
    void updateMusic();
 
    AudioResourceManSoundItem *getSoundItem(int16 index);
    AudioResourceManMusicItem *getMusicItem(int16 index);
 
protected:
    NeverhoodEngine *_vm;
 
    Common::Array<AudioResourceManMusicItem*> _musicItems;
    Common::Array<AudioResourceManSoundItem*> _soundItems;
 
    int16 addSoundItem(AudioResourceManSoundItem *soundItem);
 
};
 
} // End of namespace Neverhood
 
#endif /* NEVERHOOD_SOUND_H */