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 LASTEXPRESS_SOUND_H
#define LASTEXPRESS_SOUND_H
 
#include "lastexpress/shared.h"
 
#include "common/str.h"
 
#include "audio/mixer.h"
#include "audio/audiostream.h"
 
namespace Audio {
class AudioStream;
class Mixer;
class QueuingAudioStream;
class SoundHandle;
} // namespace Audio
 
namespace LastExpress {
 
class CVCRFile;
class LastExpressEngine;
class SoundQueue;
class Slot;
 
class SoundManager {
    friend class Slot;
    friend class Logic;
    friend class LogicManager;
    friend class GraphicsManager;
    friend class Menu;
    friend class NISManager;
    friend class LastExpressEngine;
 
public:
    SoundManager(LastExpressEngine *engine);
    ~SoundManager();
 
    void mix(Slot *slot, int16 *outBuf);
    void mixEngine();
    void mixChannels(int numChannels, int16 *buffer);
 
    int playSoundFile(const char *sndName, int typeFlags, int character, int delay);
    void startAmbient();
    void startSteam(int cityIndex);
    void endAmbient();
    void killAmbient();
    void raiseAmbient(int level, int delay);
    void levelAmbient(int delay);
    Slot *findSlotWho(int32 character);
    Slot *findSlotName(char *name);
    void ambientAI(int id);
    void soundThread();
    void killAllSlots();
    void killAllExcept(int tag1, int tag2, int tag3, int tag4, int tag5, int tag6, int tag7);
    void saveSoundInfo(CVCRFile *file);
    void destroyAllSound();
    void loadSoundInfo(CVCRFile *file, bool skipSoundLoading);
    void addSlot(Slot *entry);
    void removeSlot(Slot *entry);
    void NISFadeOut();
    void NISFadeIn();
    int getMasterVolume();
    void setMasterVolume(int volume);
 
    // DRIVER
    void soundDriverInit();
    void soundDriverCopyBuffersToDevice();
    int soundDriverGetVolume();
    void soundDriverSetVolume(int volume);
    int32 getSoundDriverTicks();
    void setSoundDriverTicks(int32 value);
    int32 getSoundDriver30HzCounter();
    int32 getSoundDriverFlags();
    void addSoundDriverFlags(int32 flags);
    void removeSoundDriverFlags(int32 flags);
    bool isCopyingDataToSoundDriver();
 
private:
    LastExpressEngine *_engine;
    Audio::Mixer *_mixer;
    Audio::SoundHandle _channelHandle;
    Audio::QueuingAudioStream *_stream;
 
    int32 _sound30HzCounter = 0;
    Slot *_soundCache = nullptr;
    int32 _curSoundSlotTag = kSoundTagFirstNormal;
    int32 _soundDriverFlags = kSoundDriverInitState;
    Slot *_soundSlotChannels[6];
    int32 _numActiveChannels = 0;
    bool _scanAnySoundLoopingSection = false;
    int32 _soundSlotAmbientFlag = 0;
    int32 _soundAmbientFadeLevel = 0;
    int32 _soundAmbientFadeTime = 0;
    int32 _soundCacheCount = 0;
    int32 _loopingSoundDuration = 0;
    int32 _inSoundThreadFunction = 0;
    bool _copyingDataToSoundDriver = false;
    int16 _soundChannelsMixBuffers[6][1470];
    int16 _soundMixBuffer[1470];
    bool _soundEngineToggle = false;
    int32 _soundDriverTicks = 0;
    int32 _soundDriverVolume = 0;
    uint32 _maxQueuedStreams = 0;
 
    const char *_cities[17] = {
        "EPERNAY",
        "CHALONS",
        "BARLEDUC",
        "NANCY",
        "LUNEVILL",
        "AVRICOUR",
        "DEUTSCHA",
        "STRASBOU",
        "BADENOOS",
        "SALZBURG",
        "ATTNANG",
        "WELS",
        "LINZ",
        "VIENNA",
        "POZSONY",
        "GALANTA",
        "POLICE"
    };
 
};
 
} // End of namespace LastExpress
 
#endif // LASTEXPRESS_SOUND_H