KoGrayColorSpaceTraits.h

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/*
 *  SPDX-FileCopyrightText: 2006-2007 Cyrille Berger <cberger@cberger.net>
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
*/
 
#ifndef _KO_GRAY_COLORSPACE_TRAITS_H_
#define _KO_GRAY_COLORSPACE_TRAITS_H_
 
template<typename _channels_type_>
struct KoGrayTraits : public KoColorSpaceTrait<_channels_type_, 2, 1> {
    
    typedef _channels_type_ channels_type;
    typedef KoColorSpaceTrait<_channels_type_, 2, 1> parent;
    
    static const qint32 gray_pos = 0;
    
    struct Pixel {
        channels_type gray;
        channels_type alpha;
    };
 
    inline static channels_type gray(const quint8 *data)
    {
        const channels_type *d = parent::nativeArray(data);
        return d[gray_pos];
    }
 
    inline static void setGray(quint8* data, channels_type nv) {
        channels_type* d = parent::nativeArray(data);
        d[gray_pos] = nv;
    }
};
 
 
struct KoGrayU8Traits : public KoGrayTraits<quint8> {
};
 
struct KoGrayU16Traits : public KoGrayTraits<quint16> {
};
 
struct KoGrayU32Traits : public KoGrayTraits<quint32> {
};
 
 
#include <KoConfig.h>
#ifdef HAVE_OPENEXR
#include <half.h>
 
struct KoGrayF16Traits : public KoGrayTraits<half> {
};
 
#endif
 
struct KoGrayF32Traits : public KoGrayTraits<float> {
};
 
struct KoGrayF64Traits : public KoGrayTraits<double> {
};
 
#endif