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39
40#ifndef QCOLORTRANSFORM_P_H
41#define QCOLORTRANSFORM_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include "qcolormatrix_p.h"
55#include "qcolorspace_p.h"
56
57#include <QtCore/qshareddata.h>
58
59QT_BEGIN_NAMESPACE
60
61class QColorTransformPrivate : public QSharedData
62{
63public:
64 QColorMatrix colorMatrix;
65 QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceIn;
66 QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceOut;
67
68 void updateLutsIn() const;
69 void updateLutsOut() const;
70 bool simpleGammaCorrection() const;
71
72 void prepare();
73 enum TransformFlag {
74 Unpremultiplied = 0,
75 InputOpaque = 1,
76 InputPremultiplied = 2,
77 OutputPremultiplied = 4,
78 Premultiplied = (InputPremultiplied | OutputPremultiplied)
79 };
80 Q_DECLARE_FLAGS(TransformFlags, TransformFlag)
81
82 void apply(QRgb *dst, const QRgb *src, qsizetype count, TransformFlags flags = Unpremultiplied) const;
83 void apply(QRgba64 *dst, const QRgba64 *src, qsizetype count, TransformFlags flags = Unpremultiplied) const;
84
85 template<typename T>
86 void apply(T *dst, const T *src, qsizetype count, TransformFlags flags) const;
87};
88
89QT_END_NAMESPACE
90
91#endif // QCOLORTRANSFORM_P_H
92

source code of qtbase/src/gui/painting/qcolortransform_p.h