audioengine_fmod.h

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#ifndef LL_AUDIOENGINE_FMOD_H
#define LL_AUDIOENGINE_FMOD_H

#include "audioengine.h"

#if LL_FMOD

#include "listener_fmod.h"

#include "fmod.h"

class LLAudioStreamFMOD;

class LLAudioEngine_FMOD : public LLAudioEngine 
{
public:
        LLAudioEngine_FMOD();
        virtual ~LLAudioEngine_FMOD();

        // initialization/startup/shutdown
        virtual BOOL init(const S32 num_channels, void *user_data);
        virtual void allocateListener();

        virtual void shutdown();

        virtual void idle(F32 max_decode_time = 0.f);

        // Internet stream methods
        virtual void initInternetStream();
        virtual void startInternetStream(const char* url);
        virtual void updateInternetStream();
        virtual void stopInternetStream();
        virtual void pauseInternetStream(int pause);
        virtual int isInternetStreamPlaying();
        virtual void getInternetStreamInfo(char* artist, char* title);
        virtual void setInternetStreamGain(F32 vol);
        virtual const char* getInternetStreamURL();

        /*virtual*/ void initWind();
        /*virtual*/ void cleanupWind();

        /*virtual*/void updateWind(LLVector3 direction, F32 camera_height_above_water);

protected:
        /*virtual*/ LLAudioBuffer *createBuffer(); // Get a free buffer, or flush an existing one if you have to.
        /*virtual*/ LLAudioChannel *createChannel(); // Create a new audio channel.

        /*virtual*/ void setInternalGain(F32 gain);
protected:
        static signed char F_CALLBACKAPI callbackMetaData(char* name, char* value, void* userdata);

        LLAudioStreamFMOD *mCurrentInternetStreamp;
        char mInternetStreamURL[1024];  /*Flawfinder: ignore*/
        int mInternetStreamChannel;

        std::list<LLAudioStreamFMOD *> mDeadStreams;

        //F32 mMinDistance[MAX_BUFFERS];
        //F32 mMaxDistance[MAX_BUFFERS];

        S32 mFadeIn;
        BOOL mInited;

        // On Windows, userdata is the HWND of the application window.
        void* mUserData;

};


class LLAudioChannelFMOD : public LLAudioChannel
{
public:
        LLAudioChannelFMOD();
        virtual ~LLAudioChannelFMOD();

protected:
        /*virtual*/ void play();
        /*virtual*/ void playSynced(LLAudioChannel *channelp);
        /*virtual*/ void cleanup();
        /*virtual*/ BOOL isPlaying();

        /*virtual*/ BOOL updateBuffer();
        /*virtual*/ void update3DPosition();
        /*virtual*/ void updateLoop();

protected:
        int mChannelID;
        S32 mLastSamplePos;
};


class LLAudioBufferFMOD : public LLAudioBuffer
{
public:
        LLAudioBufferFMOD();
        virtual ~LLAudioBufferFMOD();

        /*virtual*/ BOOL loadWAV(const char *filename);
        /*virtual*/ U32 getLength();
        friend class LLAudioChannelFMOD;

        void set3DMode(BOOL use3d);
protected:
        FSOUND_SAMPLE *getSample()      { return mSamplep; }
protected:
        FSOUND_SAMPLE *mSamplep;
};

class LLAudioStreamFMOD
{
public:
        LLAudioStreamFMOD(const char *url);
        int     startStream();
        BOOL stopStream(); // Returns true if the stream was successfully stopped.
        BOOL ready();

        char *getURL()  { return mInternetStreamURL; }

        int getOpenState();
protected:
        FSOUND_STREAM* mInternetStream;
        BOOL mReady;

        char mInternetStreamURL[1024];  /*Flawfinder: ignore*/
};

#endif

#endif

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