Method apply

src/OpenColorIO/ops/log/LogOpCPU.cpp:391–414

}

void LogRenderer::apply(const void * inImg, void * outImg, long numPixels) const
{
    static constexpr float minValue = std::numeric_limits<float>::min();

    const float * in = (const float *)inImg;
    float * out = (float *)outImg;

    for (long idx = 0; idx<numPixels; ++idx)
    {
        const float alphares = in[3];

        // NB: 'in' and 'out' could be pointers to the same memory buffer.
        std::memcpy(out, in, 4 * sizeof(float));

        ApplyMax(out, minValue);
        ApplyLog2(out);
        ApplyScale(out, m_logScale);

        out[3] = alphares;

        in  += 4;
        out += 4;
    }
}

#if OCIO_USE_SSE2
LogRendererSSE::LogRendererSSE(ConstLogOpDataRcPtr & log, float logScale)