C++ (Cpp) zap_buffer_denormals Examples

Example #1

File: enginefilterbutterworth8.cpp Project: cmeon/mixxx

void EngineFilterButterworth8Low::process(const CSAMPLE *pIn,
        const CSAMPLE *ppOut, const int iBufferSize) {
    CSAMPLE *pOutput = (CSAMPLE *)ppOut;

    for (int i=0; i < iBufferSize; i += 2) {
        pOutput[i] = _processLowpass(m_coef, m_buf1, pIn[i]);
        pOutput[i+1] = _processLowpass(m_coef, m_buf2, pIn[i+1]);
    }

    zap_buffer_denormals(m_buf1, m_bufSize);
    zap_buffer_denormals(m_buf2, m_bufSize);
}

Example #2

File: enginefilterbutterworth8.cpp Project: cmeon/mixxx

void EngineFilterButterworth8Band::process(const CSAMPLE *pIn,
        const CSAMPLE *ppOut, const int iBufferSize) {
    CSAMPLE *pOutput = (CSAMPLE *)ppOut;

    for (int i=0; i < iBufferSize; i += 2) {
        pOutput[i] = _processBandpass(m_coef, m_buf1, pIn[i]);
        pOutput[i+1] = _processBandpass(m_coef, m_buf2, pIn[i+1]);
        if(pOutput[i] != pOutput[i])	//Check for NaN
            pOutput[i] = 0;
        if(pOutput[i+1] != pOutput[i+1])	//Check for NaN
            pOutput[i+1] = 0;
    }

    zap_buffer_denormals(m_buf1, m_bufSize);
    zap_buffer_denormals(m_buf2, m_bufSize);
}

Example #3

File: enginefilterbutterworth8.cpp Project: alexpaulzor/mixxx

void EngineFilterButterworth8::process(const CSAMPLE *pIn, const CSAMPLE *ppOut, const int iBufferSize)
{
	CSAMPLE * pOutput = (CSAMPLE *)ppOut;

	switch(m_type)
	{
	case FILTER_LOWPASS:
		for(int i=0; i < iBufferSize; i += 2)
		{
			pOutput[i] = _processLowpass(m_coef, m_buf1, pIn[i]);
			pOutput[i+1] = _processLowpass(m_coef, m_buf2, pIn[i+1]);
		}
		break;

	case FILTER_BANDPASS:
		for(int i=0; i < iBufferSize; i += 2)
		{
			pOutput[i] = _processBandpass(m_coef, m_buf1, pIn[i]);
			pOutput[i+1] = _processBandpass(m_coef, m_buf2, pIn[i+1]);
			if(pOutput[i] != pOutput[i])	//Check for NaN
				pOutput[i] = 0;
			if(pOutput[i+1] != pOutput[i+1])	//Check for NaN
				pOutput[i+1] = 0;
		}
		break;

	case FILTER_HIGHPASS:
		for(int i=0; i < iBufferSize; i += 2)
		{
			pOutput[i] = _processHighpass(m_coef, m_buf1, pIn[i]);
			pOutput[i+1] = _processHighpass(m_coef, m_buf2, pIn[i+1]);
		}
		break;
	}
	zap_buffer_denormals(m_buf1, m_bufSize);
	zap_buffer_denormals(m_buf2, m_bufSize);
}