Function getOffsetsForPacking

Engine/Lut.cpp:187–226

#endif // DEAD_CODE

static void
getOffsetsForPacking(PixelPackingEnum format,
                     int *r,
                     int *g,
                     int *b,
                     int *a)
{
    if (format == ePixelPackingBGRA) {
        *b = 0;
        *g = 1;
        *r = 2;
        *a = 3;
    } else if (format == ePixelPackingRGBA) {
        *r = 0;
        *g = 1;
        *b = 2;
        *a = 3;
    } else if (format == ePixelPackingRGB) {
        *r = 0;
        *g = 1;
        *b = 2;
        *a = -1;
    } else if (format == ePixelPackingBGR) {
        *r = 0;
        *g = 1;
        *b = 2;
        *a = -1;
    } else if (format == ePixelPackingPLANAR) {
        *r = 0;
        *g = 1;
        *b = 2;
        *a = -1;
    } else {
        *r = -1;
        *g = -1;
        *b = -1;
        *a = -1;
        throw std::runtime_error("Unsupported pixel packing format");
    }
}

float
Lut::fromColorSpaceUint8ToLinearFloatFast(unsigned char v) const