ZFX + Developia

Code: Alles auswählen

void vInitOpenAL(void)
{
        cout << "Initialising OpenAL!" << endl;
        alutInit(NULL, 0);
        cout << "Clearing error bit!" << endl;
        alGetError();
}

void vKillOpenAL(void)
{
        alutExit();
}

int main(int argc, char *argv[])
{
        CSound *mySound = NULL, *secSound = NULL;

        vInitOpenAL();
        // kill OpenAL when exiting the program 
        atexit(vKillOpenAL);
	
        mySound = new CSound();
        secSound = new CSound();

        // Load .wav-Files and give the possibility play it
        if(mySound->bLoadWAV("wavdata/Gun2.wav", false))
        {
                mySound->vPlaySound();
        }
        if(secSound->bLoadWAV("wavdata/Gun2.wav", false))
        {
                secSound->vPlaySound();
        }
        
        getchar();
        delete mySound;
        delete secSound;
        return(0);
}

Code: Alles auswählen

class CSound
{
	private:
		// Sound Buffer und Source
		ALuint m_Buffer;
		ALuint m_Source;

		// Position und Velocity
		ALfloat m_SourcePos[3];
		ALfloat m_SourceVel[3];

	public:
		CSound();
		~CSound();
		bool bLoadWAV(const string sPath, bool bLoop = false);
		void vPlaySound(void);
		void vPauseSound();
		void vStopSound();
		void vSetSourcePosition(ALfloat x, ALfloat y, ALfloat z);
		void vSetSourceVelocity(ALfloat x, ALfloat y, ALfloat z);
};

CSound::CSound()
{
	cout << "Constructor called!" << endl;

	// generate source and buffer
	alGenSources(1, &m_Source);
	alGenBuffers(1, &m_Buffer);
	
	// set position and velocity
	vSetSourcePosition(0.0f, 0.0f, 0.0f);
	vSetSourceVelocity(0.0f, 0.0f, 0.0f);
}

CSound::~CSound()
{
	cout << "Destructor called!" << endl;

	// Delete buffers and source
	alDeleteBuffers(1, &m_Buffer);
	alDeleteSources(1, &m_Source);
}

bool CSound::bLoadWAV(const string sPath, bool bLoop)
{
	// error flag löschen
	alGetError();

	ALenum		error;
	ALenum		format;
	ALsizei		size;
	ALsizei		freq;
	ALboolean	loop;
	ALvoid*		data;
	
	alutLoadWAVFile("wavdata/Battle.wav", &format, &data, &size, &freq, &loop);
	if ((error = alGetError()) != AL_NO_ERROR)
	{
		cout << "[ERROR] alutLoadWAVFile exciting_sound.wav : " << error;
		return(false);
	}
	alBufferData(m_Buffer, format, data, size, freq);
	alutUnloadWAV(format, data, size, freq);
	
	alSourcei (m_Source, AL_BUFFER,		m_Buffer	);
	if((error = alGetError()) == AL_INVALID_NAME)
		cout << "[ERROR] AL_INVALID_NAME!" << endl;
	alSourcef (m_Source, AL_PITCH,		1.0f		);
	alSourcef (m_Source, AL_GAIN,		1.0f		);
	alSourcefv(m_Source, AL_POSITION,	m_SourcePos	);
	alSourcefv(m_Source, AL_VELOCITY,	m_SourceVel	);
	alSourcei (m_Source, AL_LOOPING,	bLoop		);
	
	if((error = alGetError()) != AL_NO_ERROR)
	{
		cout << "[ERROR] Unknown error occured : " << error;
		return(false);
	}
	return(true);
}

void CSound::vPlaySound(void)
{
	ALenum error;
	alGetError();

	// spielen
	cout << "m_Source = " << m_Source << "\tm_Buffer = " << m_Buffer << endl;
	alSourcePlay(m_Source);
	
	// Fehler aufgetreten? => Anzeigen!
	if((error = alGetError()) != AL_NO_ERROR)
	{
		cout << "[ERROR] Unknown error occured : " << error;
	}
}

void CSound::vSetSourcePosition(ALfloat x, ALfloat y, ALfloat z)
{
	// set position
	m_SourcePos[0] = x;
	m_SourcePos[1] = y;
	m_SourcePos[2] = z;
	
	// Apply changes
	alSourcefv(m_Source, AL_POSITION,	m_SourcePos	);
}

void CSound::vSetSourceVelocity(ALfloat x, ALfloat y, ALfloat z)
{
	// set velocity
	m_SourceVel[0] = x;
	m_SourceVel[1] = y;
	m_SourceVel[2] = z;
	
	// Apply changes
	alSourcefv(m_Source, AL_VELOCITY,	m_SourceVel	);
}