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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QCOLORTRANSFORM_P_H
#define QCOLORTRANSFORM_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qcolormatrix_p.h"
#include "qcolorspace_p.h"
#include <QtCore/qshareddata.h>
#include <QtGui/qrgbafloat.h>
QT_BEGIN_NAMESPACE
class QCmyk32;
class QColorTransformPrivate : public QSharedData
{
public:
QColorMatrix colorMatrix;
QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceIn;
QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceOut;
static QColorTransformPrivate *get(const QColorTransform &q)
{ return q.d.data(); }
void updateLutsIn() const;
void updateLutsOut() const;
bool isIdentity() const;
bool isThreeComponentMatrix() const;
Q_GUI_EXPORT void prepare();
enum TransformFlag {
Unpremultiplied = 0,
InputOpaque = 1,
InputPremultiplied = 2,
OutputPremultiplied = 4,
Premultiplied = (InputPremultiplied | OutputPremultiplied)
};
Q_DECLARE_FLAGS(TransformFlags, TransformFlag)
QColorVector map(QColorVector color) const;
QColorVector mapExtended(QColorVector color) const;
template<typename D, typename S>
void apply(D *dst, const S *src, qsizetype count, TransformFlags flags) const;
template<typename D, typename S>
void applyGray(D *dst, const S *src, qsizetype count, TransformFlags flags) const;
template<typename D, typename S>
void applyReturnGray(D *dst, const S *src, qsizetype count, TransformFlags flags) const;
private:
template<typename S>
void applyConvertIn(const S *src, QColorVector *buffer, qsizetype len, TransformFlags flags) const;
template<typename D, typename S>
void applyConvertOut(D *dst, const S *src, QColorVector *buffer, qsizetype len, TransformFlags flags) const;
template<typename D, typename S>
void applyElementListTransform(D *dst, const S *src, qsizetype count, TransformFlags flags) const;
template<typename D, typename S>
void applyThreeComponentMatrix(D *dst, const S *src, qsizetype count, TransformFlags flags) const;
};
QT_END_NAMESPACE
#endif // QCOLORTRANSFORM_P_H
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