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 PELROCK_SOUND_H
#define PELROCK_SOUND_H

#include "audio/mixer.h"

namespace Pelrock {

struct SonidoFile {
    Common::String filename;
    uint32 offset;
    uint32 size;
};

extern const char *SOUND_FILENAMES[];

enum SoundFormat {
    SOUND_FORMAT_RAWPCM,
    SOUND_FORMAT_MILES,
    SOUND_FORMAT_MILES2,
    SOUND_FORMAT_RIFF,
    SOUND_FORMAT_INVALID
};

struct SoundData {
    SoundFormat format;
    int sampleRate;
    byte *data;
    uint32 size;
};

const int kMaxChannels = 15;
const int kAmbientSoundSlotBase = 4; // Room sound indices 4-7 are ambient sounds

class SoundManager {
public:
    SoundManager(Audio::Mixer *mixer);
    ~SoundManager();
    void playSound(byte index, int channel = -1, int loopCount = 1);
    void playSound(const char *filename, int channel, int loopCount = 1);
    void playSound(byte *soundData, uint32 size, int channel);
    void stopAllSounds();
    void stopSound(int channel);

    void setVolumeSfx(int volume);
    void setVolumeMusic(int volume);
    void setVolumeMaster(int volume);
    int getVolumeSfx() const;
    int getVolumeMusic() const;
    int getVolumeMaster() const;

    bool isPlaying() const;
    bool isPlaying(int channel) const;
    bool isSoundIndexPlaying(byte index) const;
    void loadSoundIndex();

    bool isMusicPlaying();
    void playMusicTrack(int trackNumber, bool loop = true);
    void stopMusic();
    void pauseMusic();

    int tickAmbientSound(uint32 frameCount);

    void playClick();
    void playClonk();

    bool isPaused() const { return _isPaused; }
    byte getCurrentMusicTrack() const { return _currentMusicTrack; }

private:
    int playSound(SonidoFile sound, int channel = -1, int loopCount = 1);
    SoundFormat detectFormat(byte *data, uint32 size);
    int getSampleRate(byte *data, SoundFormat format);
    int findFreeChannel();

private:
    Audio::Mixer *_mixer;
    int _currentVolume;
    Audio::SoundHandle _musicHandle;
    Audio::SoundHandle _sfxHandles[kMaxChannels];
    byte _sfxSoundIndex[kMaxChannels]; // tracks which sound index is on each channel (0xFF = none)
    Common::HashMap<Common::String, SonidoFile> _soundMap;
    bool _isPaused = false;
    byte _currentMusicTrack = 0;


    uint32 _cdTrackStart = 0;
    uint32 _cdTrackDuration = 0;
    uint32 _cdPlayStartTime = 0; // time at the moment of calling play()

};

} // End of namespace Pelrock

#endif // PELROCK_SOUND_H