Function getRefSpaceName

src/OpenColorIO/ConfigUtils.cpp:196–227

Find a color space where isData is false and it has neither a to_ref or from_ref transform. Currently only selecting scene-referred spaces. Note: this returns the first reference space found, even if it is inactive. Returns empty if none are found.

// are found.
//
const char * getRefSpaceName(const ConstConfigRcPtr & cfg)
{
    // It's important to support inactive spaces since sometimes the only reference space
    // may be inactive, e.g. the display-referred reference in the built-in configs.
    int nbCs = cfg->getNumColorSpaces(SEARCH_REFERENCE_SPACE_SCENE, COLORSPACE_ALL);

    for (int i = 0; i < nbCs; i++)
    {
        const char * csname = cfg->getColorSpaceNameByIndex(SEARCH_REFERENCE_SPACE_SCENE, 
                                                            COLORSPACE_ALL, 
                                                            i);
        ConstColorSpaceRcPtr cs = cfg->getColorSpace(csname);

        if (cs->isData())
        {
            continue;
        }
        ConstTransformRcPtr t = cs->getTransform(COLORSPACE_DIR_TO_REFERENCE);
        if (t != nullptr)
        {
            continue;
        }
        t = cs->getTransform(COLORSPACE_DIR_FROM_REFERENCE);
        if (t != nullptr) 
        {
            continue;
        }

        return csname;
    }
    return "";
}

// Find the first scene-referred color space with isdata: true.
//