|| || || || || || || ||

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UpoSRGB2RGB.h

Go to the documentation of this file.

#ifndef Impala_Core_Array_Trait_UpoSRGB2RGB_h
#define Impala_Core_Array_Trait_UpoSRGB2RGB_h

namespace Impala
{
namespace Core
{
namespace Array
{
namespace Trait
{


class UpoSRGB2RGBPtr
{
public:
    typedef Pattern::TagTransInVar TransVarianceCategory;
    typedef Pattern::TagCallPointer CallCategory;

    UpoSRGB2RGBPtr(Real64 gamma=2.2)
    {
        for(int i = 0; i < 256; i++)
        {
            lookupTable[i] = pow(Real64(i) / 255.0, gamma) * 255.0;
        }
    }

    void DoIt(Real64 *out, UInt8* rgb)
    {
        out[0] = lookupTable[rgb[0]];
        out[1] = lookupTable[rgb[1]];
        out[2] = lookupTable[rgb[2]];
    }
private:
    Real64 lookupTable[256];
};

} // namespace Trait
} // namespace Array
} // namespace Core
} // namespace Impala

#endif //UpoSRGB2RGB_h

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