colortransformation.h

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/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2022 Xaver Hugl <xaver.hugl@gmail.com>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
#pragma once
 
#include <memory>
#include <stdint.h>
#include <tuple>
#include <vector>
 
#include "kwin_export.h"
 
typedef struct _cmsPipeline_struct cmsPipeline;
class QVector3D;
 
namespace KWin
{
 
class ColorPipelineStage;
 
class KWIN_EXPORT ColorTransformation
{
public:
    ColorTransformation(std::vector<std::unique_ptr<ColorPipelineStage>> &&stages);
    ~ColorTransformation();
 
    void append(ColorTransformation *transformation);
 
    bool valid() const;
 
    std::tuple<uint16_t, uint16_t, uint16_t> transform(uint16_t r, uint16_t g, uint16_t b) const;
    QVector3D transform(QVector3D in) const;
 
    static std::unique_ptr<ColorTransformation> createScalingTransform(const QVector3D &scale);
 
private:
    cmsPipeline *const m_pipeline;
    std::vector<std::unique_ptr<ColorPipelineStage>> m_stages;
    bool m_valid = true;
};
 
}