int FMOD_Main()
{
    FMOD::System       *system;
    FMOD::Sound        *sound;
    FMOD::Channel      *channel;
    FMOD::DSP          *mydsp;
    FMOD::ChannelGroup *mastergroup;
    FMOD_RESULT         result;
    unsigned int        version;
    void               *extradriverdata = 0;

    Common_Init(&extradriverdata);

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }

    result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
    ERRCHECK(result);

    result = system->createSound(Common_MediaPath("drumloop.wav"), FMOD_SOFTWARE | FMOD_LOOP_NORMAL, 0, &sound);
    ERRCHECK(result);

    result = system->playSound(sound, 0, false, &channel);
    ERRCHECK(result);

    /*
        Create the DSP effect.
    */  
    { 
        FMOD_DSP_DESCRIPTION dspdesc; 
        memset(&dspdesc, 0, sizeof(dspdesc));
        
        strncpy(dspdesc.name, "My first DSP unit", sizeof(dspdesc.name));
        dspdesc.version = 0x00010000;
        dspdesc.numinputbuffers = 1;
        dspdesc.numoutputbuffers = 1;
        dspdesc.read = myDSPCallback; 
        dspdesc.userdata = (void *)0x12345678; 

        result = system->createDSP(&dspdesc, &mydsp); 
        ERRCHECK(result); 
    } 

    /*
        Attach the DSP, inactive by default.
    */
    result = mydsp->setBypass(true);
    ERRCHECK(result);

    result = system->getMasterChannelGroup(&mastergroup);
    ERRCHECK(result);

    result = mastergroup->addDSP(0, mydsp, 0);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        bool bypass;

        Common_Update();

        result = mydsp->getBypass(&bypass);
        ERRCHECK(result);

        if (Common_BtnPress(BTN_ACTION1))
        {
            bypass = !bypass;
            
            result = mydsp->setBypass(bypass);
            ERRCHECK(result);
        }

        result = system->update();
        ERRCHECK(result);

        Common_Draw("==================================================");
        Common_Draw("Custom DSP Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2004-2014.");
        Common_Draw("==================================================");
        Common_Draw("");
        Common_Draw("Press %s to toggle filter bypass", Common_BtnStr(BTN_ACTION1));
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
        Common_Draw("");
        Common_Draw("Filter is %s", bypass ? "inactive" : "active");

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);

    result = mastergroup->removeDSP(mydsp);
    ERRCHECK(result);
    result = mydsp->release();
    ERRCHECK(result);

    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    Common_Close();

    return 0;
}
Beispiel #2
0
int FMOD_Main()
{
    FMOD::System       *system        = 0;
    FMOD::Sound        *sound         = 0;
    FMOD::Channel      *channel       = 0;
    FMOD::ChannelGroup *mastergroup   = 0; 
    FMOD::DSP          *dsplowpass    = 0;
    FMOD::DSP          *dsphighpass   = 0;
    FMOD::DSP          *dspecho       = 0;
    FMOD::DSP          *dspflange     = 0;
    FMOD_RESULT         result;
    unsigned int        version;
    void               *extradriverdata = 0;

    Common_Init(&extradriverdata);

    /*
        Create a System object and initialize
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }

    result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
    ERRCHECK(result);

    result = system->getMasterChannelGroup(&mastergroup);
    ERRCHECK(result);

    result = system->createSound(Common_MediaPath("drumloop.wav"), FMOD_DEFAULT, 0, &sound);
    ERRCHECK(result);

    result = system->playSound(sound, 0, false, &channel);
    ERRCHECK(result);

    /*
        Create some effects to play with
    */
    result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_HIGHPASS, &dsphighpass);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dspecho);
    ERRCHECK(result);
    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
    ERRCHECK(result);

    /*
        Add them to the master channel group.  Each time an effect is added (to position 0) it pushes the others down the list.
    */
    result = mastergroup->addDSP(0, dsplowpass);
    ERRCHECK(result);
    result = mastergroup->addDSP(0, dsphighpass);
    ERRCHECK(result);
    result = mastergroup->addDSP(0, dspecho);
    ERRCHECK(result);
    result = mastergroup->addDSP(0, dspflange);
    ERRCHECK(result);

    /*
        By default, bypass all effects.  This means let the original signal go through without processing.
        It will sound 'dry' until effects are enabled by the user.
    */
    result = dsplowpass->setBypass(true);
    ERRCHECK(result);
    result = dsphighpass->setBypass(true);
    ERRCHECK(result);
    result = dspecho->setBypass(true);
    ERRCHECK(result);
    result = dspflange->setBypass(true);
    ERRCHECK(result);

    /*
        Main loop
    */
    do
    {
        Common_Update();

        if (Common_BtnPress(BTN_MORE))
        {
            bool paused;

            result = channel->getPaused(&paused);
            ERRCHECK(result);

            paused = !paused;

            result = channel->setPaused(paused);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION1))
        {
            bool bypass;

            result = dsplowpass->getBypass(&bypass);
            ERRCHECK(result);

            bypass = !bypass;

            result = dsplowpass->setBypass(bypass);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION2))
        {
            bool bypass;

            result = dsphighpass->getBypass(&bypass);
            ERRCHECK(result);

            bypass = !bypass;

            result = dsphighpass->setBypass(bypass);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION3))
        {
            bool bypass;

            result = dspecho->getBypass(&bypass);
            ERRCHECK(result);

            bypass = !bypass;

            result = dspecho->setBypass(bypass);
            ERRCHECK(result);
        }

        if (Common_BtnPress(BTN_ACTION4))
        {
            bool bypass;

            result = dspflange->getBypass(&bypass);
            ERRCHECK(result);

            bypass = !bypass;

            result = dspflange->setBypass(bypass);
            ERRCHECK(result);
        }

        result = system->update();
        ERRCHECK(result);

        {
            bool paused = 0;
            bool dsplowpass_bypass;
            bool dsphighpass_bypass;
            bool dspecho_bypass;
            bool dspflange_bypass;

            dsplowpass   ->getBypass(&dsplowpass_bypass);
            dsphighpass  ->getBypass(&dsphighpass_bypass);
            dspecho      ->getBypass(&dspecho_bypass);
            dspflange    ->getBypass(&dspflange_bypass);

            if (channel)
            {
                result = channel->getPaused(&paused);
                if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
                {
                    ERRCHECK(result);
                }
            }

            Common_Draw("==================================================");
            Common_Draw("Effects Example.");
            Common_Draw("Copyright (c) Firelight Technologies 2004-2015.");
            Common_Draw("==================================================");
            Common_Draw("");
            Common_Draw("Press %s to pause/unpause sound", Common_BtnStr(BTN_MORE));
            Common_Draw("Press %s to toggle dsplowpass effect", Common_BtnStr(BTN_ACTION1));
            Common_Draw("Press %s to toggle dsphighpass effect", Common_BtnStr(BTN_ACTION2));
            Common_Draw("Press %s to toggle dspecho effect", Common_BtnStr(BTN_ACTION3));
            Common_Draw("Press %s to toggle dspflange effect", Common_BtnStr(BTN_ACTION4));
            Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
            Common_Draw("");
            Common_Draw("%s : lowpass[%c] highpass[%c] echo[%c] flange[%c]", 
                    paused              ? "Paused " : "Playing",
                    dsplowpass_bypass   ? ' ' : 'x',
                    dsphighpass_bypass  ? ' ' : 'x',
                    dspecho_bypass      ? ' ' : 'x',
                    dspflange_bypass    ? ' ' : 'x');
        }

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));

    /*
        Shut down
    */
    result = mastergroup->removeDSP(dsplowpass);
    ERRCHECK(result);
    result = mastergroup->removeDSP(dsphighpass);
    ERRCHECK(result);
    result = mastergroup->removeDSP(dspecho);
    ERRCHECK(result);
    result = mastergroup->removeDSP(dspflange);
    ERRCHECK(result);
    
    result = dsplowpass->release();
    ERRCHECK(result);
    result = dsphighpass->release();
    ERRCHECK(result);
    result = dspecho->release();
    ERRCHECK(result);
    result = dspflange->release();
    ERRCHECK(result);

    result = sound->release();
    ERRCHECK(result);
    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    Common_Close();

    return 0;
}
int FMOD_Main()
{
    void *extradriverdata = 0;    
    Common_Init(&extradriverdata);

    /*
        Create a System object and initialize
    */
    FMOD_RESULT result;
    FMOD::System* system;
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    unsigned int version;
    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }
    
    result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
    ERRCHECK(result);
        

    /*
        Create a new channel group to hold the convolution DSP unit
    */
    FMOD::ChannelGroup* reverbGroup;
    result = system->createChannelGroup("reverb", &reverbGroup);
    ERRCHECK(result);

    
    /*
        Create a new channel group to hold all the channels and process the dry path
    */
    FMOD::ChannelGroup* mainGroup;
    result = system->createChannelGroup("main", &mainGroup);
    ERRCHECK(result);

    /*
        Create the convultion DSP unit and set it as the tail of the channel group
    */
    FMOD::DSP* reverbUnit;    
    result = system->createDSPByType(FMOD_DSP_TYPE_CONVOLUTIONREVERB, &reverbUnit);
    ERRCHECK(result);
    result = reverbGroup->addDSP(FMOD_CHANNELCONTROL_DSP_TAIL, reverbUnit);
    ERRCHECK(result);

    /*
        Open the impulse response wav file, but use FMOD_OPENONLY as we want
        to read the data into a seperate buffer
    */
    FMOD::Sound* irSound;
    result = system->createSound(Common_MediaPath("standrews.wav"), FMOD_DEFAULT | FMOD_OPENONLY, NULL, &irSound);
    ERRCHECK(result);

    /*
        Retrieve the sound information for the Impulse Response input file
    */
    FMOD_SOUND_FORMAT irSoundFormat;
    FMOD_SOUND_TYPE irSoundType;
    int irSoundBits, irSoundChannels;
    result = irSound->getFormat(&irSoundType, &irSoundFormat, &irSoundChannels, &irSoundBits);
    ERRCHECK(result);
    unsigned int irSoundLength;
    result = irSound->getLength(&irSoundLength, FMOD_TIMEUNIT_PCM);
    ERRCHECK(result);

    
    if (irSoundFormat != FMOD_SOUND_FORMAT_PCM16)
    {
        /*
            For simplicity of the example, if the impulse response is the wrong format just display an error
        */        
        Common_Fatal("Impulse Response file is the wrong audio format");
    }

    /*
        The reverb unit expects a block of data containing a single 16 bit int containing
        the number of channels in the impulse response, followed by PCM 16 data
    */
    unsigned int irDataLength = sizeof(short) * (irSoundLength * irSoundChannels + 1);
    short* irData = (short*)malloc(irDataLength);
    irData[0] = irSoundChannels;
    unsigned int irDataRead;
    result = irSound->readData(&irData[1], irDataLength - sizeof(short), &irDataRead);
    ERRCHECK(result);
    result = reverbUnit->setParameterData(FMOD_DSP_CONVOLUTION_REVERB_PARAM_IR, irData, irDataLength);
    ERRCHECK(result);

    /*
        Don't pass any dry signal from the reverb unit, instead take the dry part
        of the mix from the main signal path
    */
    result = reverbUnit->setParameterFloat(FMOD_DSP_CONVOLUTION_REVERB_PARAM_DRY, -80.0f);    
    ERRCHECK(result);

    /*
        We can now free our copy of the IR data and release the sound object, the reverb unit 
        has created it's internal data
    */
    free(irData);
    result = irSound->release();
    ERRCHECK(result);
    
    /*
        Load up and play a sample clip recorded in an anechoic chamber
    */
    FMOD::Sound* sound;
    system->createSound(Common_MediaPath("singing.wav"), FMOD_3D | FMOD_LOOP_NORMAL, NULL, &sound);
    ERRCHECK(result);

    FMOD::Channel* channel;
    system->playSound(sound, mainGroup, true, &channel);
    ERRCHECK(result);
    
    /*
        Create a send connection between the channel head and the reverb unit
    */
    FMOD::DSP* channelHead;
    channel->getDSP(FMOD_CHANNELCONTROL_DSP_HEAD, &channelHead);
    ERRCHECK(result);
    FMOD::DSPConnection* reverbConnection;
    result = reverbUnit->addInput(channelHead, &reverbConnection, FMOD_DSPCONNECTION_TYPE_SEND);
    ERRCHECK(result);

    result = channel->setPaused(false);
    ERRCHECK(result);


    float wetVolume = 1.0;
    float dryVolume = 1.0;

    /*
        Main loop
    */
    do
    {
        Common_Update();

        if (Common_BtnPress(BTN_LEFT))
        {
            wetVolume = (wetVolume <= 0.0f) ? wetVolume : wetVolume - 0.05;
        }
        if (Common_BtnPress(BTN_RIGHT))
        {
            wetVolume = (wetVolume >= 1.0f) ? wetVolume : wetVolume + 0.05f;
        }        
        if (Common_BtnPress(BTN_DOWN))
        {
            dryVolume = (dryVolume <= 0.0f) ? dryVolume : dryVolume - 0.05f;
        }
        if (Common_BtnPress(BTN_UP))
        {
            dryVolume = (dryVolume >= 1.0f) ? dryVolume : dryVolume + 0.05f;
        }
        

        result = system->update();
        ERRCHECK(result);

        result = reverbConnection->setMix(wetVolume);
        ERRCHECK(result);
        result = mainGroup->setVolume(dryVolume);
        ERRCHECK(result);


        Common_Draw("==================================================");
        Common_Draw("Convolution Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2004-2015.");
        Common_Draw("==================================================");
        Common_Draw("Press %s and %s to change dry mix", Common_BtnStr(BTN_UP), Common_BtnStr(BTN_DOWN));
        Common_Draw("Press %s and %s to change wet mix", Common_BtnStr(BTN_LEFT), Common_BtnStr(BTN_RIGHT));
        Common_Draw("wet mix [%.2f] dry mix [%.2f]", wetVolume, dryVolume);
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
        Common_Draw("");

        Common_Sleep(50);
    } while (!Common_BtnPress(BTN_QUIT));

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);
    result = mainGroup->release();
    ERRCHECK(result);
    result = reverbGroup->removeDSP(reverbUnit);
    ERRCHECK(result);
    result = reverbUnit->disconnectAll(true, true);
    ERRCHECK(result);
    result = reverbUnit->release();
    ERRCHECK(result);
    result = reverbGroup->release();
    ERRCHECK(result);
    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    Common_Close();

    return 0;
}