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 DGDS_SOUND_H
#define DGDS_SOUND_H

#include "common/scummsys.h"
#include "audio/audiostream.h"
#include "audio/mixer.h"

namespace Dgds {

class ResourceManager;
class Decompressor;
class DgdsMidiPlayer;
class SciMusic;
class MusicEntry;
class AudioPlayer;

struct Channel {
    Audio::AudioStream *stream;
    Audio::SoundHandle handle;
    byte volume;
};

struct SoundData {
    SoundData() : _size(0), _data(nullptr), _flags(0) {}
    uint32 _size;
    const byte *_data;
    uint16 _flags;
};

class Sound {
public:
    Sound(Audio::Mixer *mixer, ResourceManager *resource, Decompressor *decompressor);
    ~Sound();

    void playAmigaSfx(const Common::String &filename, byte channel, byte volume);
    bool loadMusic(const Common::String &filename);
    void loadSFX(const Common::String &filename);

    void playMusic(int num);
    void stopMusic();
    void unloadMusic();

    void playSFX(int num);

    void playMusicOrSFX(int num);
    void stopMusicOrSFX(int num);
    void pauseMusicOrSFX(int num);
    void unpauseMusicOrSFX(int num);

    void stopSfxForChannel(byte channel);
    void stopSfxByNum(int num);
    void stopAllSfx();

    bool playPCM(const byte *data, uint32 size);

    void muteSoundType(Audio::Mixer::SoundType soundType);
    void unmuteSoundType(Audio::Mixer::SoundType soundType);

private:
    void loadSNGSoundData(const Common::String &filename, Common::Array<SoundData> &dataArray);
    bool loadSXSoundData(const Common::String &filename, Common::Array<SoundData> &dataArray, Common::HashMap<uint16, uint16> &idMap);

    void playPCSound(int num, const Common::Array<SoundData> &dataArray, Audio::Mixer::SoundType soundType);

    void processInitSound(uint32 obj, const SoundData &data, Audio::Mixer::SoundType soundType);
    void processDisposeSound(uint32 obj);
    void processStopSound(uint32 obj, bool sampleFinishedPlaying);
    void processPlaySound(uint32 obj, bool playBed, bool restoring, const SoundData &data);
    void initSoundResource(MusicEntry *newSound, const SoundData &data, Audio::Mixer::SoundType soundType);

    int mapSfxNum(int num) const;
    int mapMusicNum(int num) const;

    struct Channel _channels[2];

    Common::Array<SoundData> _musicData;
    Common::HashMap<uint16, uint16> _musicIdMap;

    Common::Array<SoundData> _sfxData;
    Common::HashMap<uint16, uint16> _sfxIdMap;

    Common::String _currentMusic;

    SciMusic *_music;

    Audio::Mixer *_mixer;
    ResourceManager *_resource;
    Decompressor *_decompressor;

    bool _isMusicMuted;
    bool _isSfxMuted;
};

enum {
    DIGITAL_PCM   = 1 << 0,
    TRACK_ADLIB   = 1 << 1,
    TRACK_GM      = 1 << 2,
    TRACK_MT32    = 1 << 3,
    TRACK_CMS     = 1 << 4,
    TRACK_PCSPK   = 1 << 5,
    TRACK_TANDY   = 1 << 6,
};

} // End of namespace Dgds

#endif // DGDS_SOUND_H