Nejlepší České Hry/Nej české hry.iso/hry/plane arcade/planearcade.exe/tank3.bmp/sound.cpp

C/C++ Source or Header | 2004-08-23 | 7.8 KB | 392 lines

#include "main.h"

//-----------
//Global
//-----------
ALCcontext *Context = NULL;
ALCdevice  *Device = NULL;


//------------------------------------------------------------------
// Name: InitializeSound()
// Desc: Inicializacia zvuku
//------------------------------------------------------------------
void InitializeSound()
{

    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return;


    //OpenAL3D
    //--------------
    LogPrint("Inicializujem OpenAL3D");

    //Open device
    if(SoundEnabled3D == 1)
    {
        if(HardwareSound == 1)
            Device = alcOpenDevice((ALubyte*)"DirectSound3D");
        else
            Device = alcOpenDevice((ALubyte*)"DirectSound");
    }
    else
        Device = alcOpenDevice((ALubyte*)"DirectSound");


    if (Device == NULL)
    {
        //we failed to initialize the device
        LogPrint(" chyba pri inicializacii");
    }

    //Create context(s)
    Context=alcCreateContext(Device,NULL);
    //Set active context
    alcMakeContextCurrent(Context);

    //alutInit(0,NULL);



}

//------------------------------------------------------------------
// Name: CleanUpSound()
// Desc: Odstrani z pamati objekty zvuku
//------------------------------------------------------------------
void CleanUpSound()
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return;

    //OpenAL3D
    //--------------

    //Get active context
    Context=alcGetCurrentContext();
    //Get device for active context
    Device=alcGetContextsDevice(Context);
    //Disable context
    alcMakeContextCurrent(NULL);
    //Release context(s)
    alcDestroyContext(Context);
    //Close device
    alcCloseDevice(Device);

}



//------------------------------------------------------------------
// Name: SOUND()
// Desc: Konstruktor
//------------------------------------------------------------------
SOUND::SOUND()
{

    //MP3
    m_pGraph = NULL;
    m_pMediaControl = NULL;
    m_pMediaPosition = NULL;


}

//------------------------------------------------------------------
// Name: ~SOUND()
// Desc: Destruktor
//------------------------------------------------------------------
SOUND::~SOUND()
{
    Stop();

    //Direct Music
    //-------------
    if (m_enumFormat == MP3)
    {
        if(m_pGraph)
            m_pGraph->Release();
        if(m_pMediaControl)
            m_pMediaControl->Release();
        if(m_pMediaPosition)
            m_pMediaPosition->Release();

        //Uninitilize COM
        CoUninitialize();
    }

    //OpenAL3D
    //-----------
    if (m_enumFormat == WavMidi3D)
    {
        alDeleteSources(1,&alSource);
        alDeleteBuffers(1,&alSampleSet);
    }


}


//------------------------------------------------------------------
// Name: InitialiseForWavMidi()
// Desc: pripravy zvuk pre prehrßvanie MIDI alebo WAW
//------------------------------------------------------------------
void SOUND::InitialiseForWavMidi()
{

    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return;

    LogPrint("Vytvaram zvuk WavMidi");

    m_enumFormat = WavMidi3D;
}

//------------------------------------------------------------------
// Name: InitialiseForWavMidi()
// Desc: pripravy zvuk pre prehrßvanie MIDI alebo WAW
//------------------------------------------------------------------
void SOUND::InitialiseForWavMidi3D()
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return;

    LogPrint("Vytvaram zvuk WavMidi3D");

    m_enumFormat = WavMidi3D;

    alSourcei(alSource,AL_SOURCE_RELATIVE,AL_TRUE);

}

//------------------------------------------------------------------
// Name: InitialiseForMP3()
// Desc: pripravy zvuk na prehravanie MP3
//------------------------------------------------------------------
void SOUND::InitialiseForMP3()
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return;

    LogPrint("Inicializujem Direct Music");

    //Initialise COM
    CoInitialize(NULL);

    LogPrint("Vytvaram zvuk MP3");

    CoCreateInstance(CLSID_FilterGraph, NULL,
                     CLSCTX_INPROC, IID_IGraphBuilder, (void**)&m_pGraph);

    m_pGraph->QueryInterface(IID_IMediaControl, (void**)&m_pMediaControl);

    m_pGraph->QueryInterface(IID_IMediaPosition, (void**)&m_pMediaPosition);

    m_enumFormat = MP3;
}



//------------------------------------------------------------------
// Name: LoadSound()
// Desc: Loadne zvuk
//------------------------------------------------------------------
bool SOUND::LoadSound(char* szSoundFileName)
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return false;

    WCHAR wstrSoundPath[MAX_PATH];

    //Log Info
    char cBuf[80];
    sprintf(cBuf,"  Zvuk: %s",szSoundFileName);
    LogPrint(cBuf);

    switch(m_enumFormat)
    {

        //MP3
        //-------------
        case MP3:
            //Convert the path to unicode.
            MultiByteToWideChar(CP_ACP, 0, szSoundFileName, -1, wstrSoundPath, MAX_PATH);

            m_pGraph->RenderFile(wstrSoundPath, NULL);
        break;

        //Wav3D
        //-------------
        case WavMidi3D:

            //load our sound
            ALboolean    loop;
            alutLoadWAVFile(szSoundFileName,&alFormatBuffer, (void **) &alBuffer,(unsigned int *)&alBufferLen, &alFreqBuffer, &loop);

            alGenSources(1, &alSource);
            alGenBuffers(1, &alSampleSet);
            alBufferData(alSampleSet, alFormatBuffer, alBuffer, alBufferLen, alFreqBuffer);
            alSourcei(alSource, AL_BUFFER, alSampleSet);

            alutUnloadWAV(alFormatBuffer, alBuffer, alBufferLen, alFreqBuffer);

            //set the pitch
            alSourcef(alSource,AL_PITCH,1.0f);
            //set the gain
            alSourcef(alSource,AL_GAIN,1.0f);

            if (alSource == NULL)
                LogPrint("  chyba pri vytvarani zvuku");

        break;

        //Wav2D
        //------
        case WavMidi:



        break;

        default:
            return false;
    }

    return true;
}

//------------------------------------------------------------------
// Name: Play()
// Desc: Prehra zvuk - dwNumOfRepeats - pocet prehrani
//------------------------------------------------------------------
bool SOUND::Play(bool Loop)
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return false;

    switch(m_enumFormat)
    {
        //MP3
        //-------------
        case MP3:

            //rewind
            m_pMediaPosition->put_CurrentPosition(0);

            //Play mp3
            m_pMediaControl->Run();
        break;

        //Wav3D
        //-------------
        case WavMidi3D:

            //set looping to true
            alSourcei(alSource,AL_LOOPING,Loop);

            alSourcePlay(alSource);
        break;

        //Wav2D
        //-------------
        case WavMidi:


        break;
        default:
            return false;
    }

    return true;
}

//------------------------------------------------------------------
// Name: Stop()
// Desc: Zastavy zvuk
//------------------------------------------------------------------
bool SOUND::Stop()
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return false;

    switch(m_enumFormat)
    {
        //MP3
        //-------------
        case MP3:
            m_pMediaControl->Stop();
        break;

        //Wav3D
        //-------------
        case WavMidi3D:

            alSourceStop(alSource);

        break;

        //Wav2D
        //-------------
        case WavMidi:


        break;

        default:
            return false;
    }

    return true;
}

//------------------------------------------------------------------
// Name: SetPosition()
// Desc: Nastavi poziciu zvuku, zvuk sa prepoΦitava pod╛a pozicie kamery
//------------------------------------------------------------------
void SOUND::SetPosition(VECTOR3D Point,float Scale)
{
    //ak je vypnuty zvuk skonci
    if (SoundEnabled == 0)
        return;

    if (m_enumFormat != WavMidi3D)
        return;


    //Camera
    //---------
    alListener3f(AL_POSITION,0.0f,0.0f,0.0f);

    float vec[6];
    vec[0] = 0.0f;
    vec[1] = 0.0f;
    vec[2] = 1.0f;
    vec[3] = 0.0f;
    vec[4] = 0.0f;
    vec[5] = 1.0f;
    alListenerfv(AL_ORIENTATION, vec);


    //Sound
    //----------
    Point = TransformPoint(Point,matView);

    alSource3f(alSource,AL_POSITION,Point.X/Scale,-Point.Y/Scale,-Point.Z/Scale);
    alSource3f(alSource,AL_VELOCITY,-20.0f,0.0f,20.0f);


}