coloradapter.hpp

#ifndef PASTELGFX_COLORADAPTER_HPP
#define PASTELGFX_COLORADAPTER_HPP

#include "pastel/gfx/color/coloradapter.h"

namespace Pastel
{

    template <typename Integer>
    Color integerToColor(
        const NoDeduction<Integer>& packedColor,
        integer redBits, integer greenBits, integer blueBits,
        integer redFrom, integer greenFrom, integer blueFrom)
    {
        PENSURE_OP(redBits, >, 0);
        PENSURE_OP(greenBits, >, 0);
        PENSURE_OP(blueBits, >, 0);

        PENSURE_OP(redFrom, >, 0);
        PENSURE_OP(greenFrom, >, 0);
        PENSURE_OP(blueFrom, >, 0);

        return Color(
            dequantizeUnsigned(extractBits(packedColor, redFrom, redBits), 1 << redBits),
            dequantizeUnsigned(extractBits(packedColor, greenFrom, greenBits), 1 << greenBits),
            dequantizeUnsigned(extractBits(packedColor, blueFrom, blueBits), 1 << blueBits));
    }

    template <typename Integer>
    Color integerToColor(
        const NoDeduction<Integer>& packedColor,
        integer redBits, integer greenBits, integer blueBits)
    {
        PENSURE_OP(redBits, >, 0);
        PENSURE_OP(greenBits, >, 0);
        PENSURE_OP(blueBits, >, 0);

        integer redFrom = 0;
        integer greenFrom = redFrom + redBits;
        integer blueFrom = greenFrom + greenBits;

        return Pastel::integerToColor(
            packedColor, redBits, greenBits, blueBits,
            redFrom, greenFrom, blueFrom);
    }

    template <typename Integer>

    Integer colorToInteger(const Color& color,
        integer redBits, integer greenBits, integer blueBits,
        integer redFrom, integer greenFrom, integer blueFrom)
    {
        Integer red = quantizeUnsigned(color[0], 1 << redBits);
        Integer green = quantizeUnsigned(color[1], 1 << greenBits);
        Integer blue = quantizeUnsigned(color[2], 1 << blueBits);

        return (red << redFrom) + (green << greenFrom) + (blue << blueFrom);
    }

    template <typename Integer>

    Integer colorToInteger(const Color& color,
        integer redBits, integer greenBits, integer blueBits)
    {
        integer redFrom = 0;
        integer greenFrom = redFrom + redBits;
        integer blueFrom = greenFrom + greenBits;

        return Pastel::colorToInteger<Integer>(color,
            redBits, greenBits, blueBits,
            redFrom, greenFrom, blueFrom);
    }

}

#endif