Method bake

src/OpenColorIO/fileformats/FileFormatHDL.cpp:590–823

}

void LocalFileFormat::bake(const Baker & baker,
                           const std::string & formatName,
                           std::ostream & ostream) const
{

    if(formatName != "houdini")
    {
        std::ostringstream os;
        os << "Unknown hdl format name, '";
        os << formatName << "'.";
        throw Exception(os.str().c_str());
    }

    // setup the floating point precision
    ostream.setf(std::ios::fixed, std::ios::floatfield);
    ostream.precision(6);

    // Default sizes
    const int DEFAULT_SHAPER_SIZE = 1024;
    // MPlay produces bad results with 32^3 cube (in a way
    // that looks more quantised than even "nearest"
    // interpolation in OCIOFileTransform)
    const int DEFAULT_CUBE_SIZE = 64;
    const int DEFAULT_1D_SIZE = 1024;

    // Get configured sizes
    int cubeSize = baker.getCubeSize();
    int shaperSize = baker.getShaperSize();
    int onedSize = baker.getCubeSize();

    // Check defaults and cube size
    if(cubeSize == -1) cubeSize = DEFAULT_CUBE_SIZE;

    // ..and same for shaper size
    if(shaperSize == -1) shaperSize = DEFAULT_SHAPER_SIZE;

    // ..and finally, for the 1D LUT size
    if(onedSize == -1) onedSize = DEFAULT_1D_SIZE;

    // Version numbers
    const int HDL_1D = 1; // 1D LUT version number
    const int HDL_3D = 2; // 3D LUT version number
    const int HDL_3D1D = 3; // 3D LUT with 1D prelut

    // Get spaces from baker
    const std::string shaperSpace = baker.getShaperSpace();

    // Determine required LUT type
    int required_lut = -1;

    ConstCPUProcessorRcPtr inputToTarget = GetInputToTargetProcessor(baker);

    if(inputToTarget->hasChannelCrosstalk())
    {
        if(shaperSpace.empty())
        {
            // Has crosstalk, but no prelut, so need 3D LUT
            required_lut = HDL_3D;