| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
|---|
| 3 | |
|---|
| 4 | #ifndef QCOLORTRANSFORM_P_H |
|---|
| 5 | #define QCOLORTRANSFORM_P_H |
|---|
| 6 | |
|---|
| 7 | // |
|---|
| 8 | // W A R N I N G |
|---|
| 9 | // ------------- |
|---|
| 10 | // |
|---|
| 11 | // This file is not part of the Qt API. It exists purely as an |
|---|
| 12 | // implementation detail. This header file may change from version to |
|---|
| 13 | // version without notice, or even be removed. |
|---|
| 14 | // |
|---|
| 15 | // We mean it. |
|---|
| 16 | // |
|---|
| 17 | |
|---|
| 18 | #include "qcolormatrix_p.h" |
|---|
| 19 | #include "qcolorspace_p.h" |
|---|
| 20 | |
|---|
| 21 | #include <QtCore/qshareddata.h> |
|---|
| 22 | #include <QtGui/qrgbafloat.h> |
|---|
| 23 | |
|---|
| 24 | QT_BEGIN_NAMESPACE |
|---|
| 25 | class QCmyk32; |
|---|
| 26 | |
|---|
| 27 | class QColorTransformPrivate : public QSharedData |
|---|
| 28 | { |
|---|
| 29 | public: |
|---|
| 30 | QColorMatrix colorMatrix; // Combined colorSpaceIn->toXyz and colorSpaceOut->toXyz.inverted() |
|---|
| 31 | QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceIn; |
|---|
| 32 | QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceOut; |
|---|
| 33 | |
|---|
| 34 | static QColorTransformPrivate *get(const QColorTransform &q) |
|---|
| 35 | { return q.d.data(); } |
|---|
| 36 | |
|---|
| 37 | void updateLutsIn() const; |
|---|
| 38 | void updateLutsOut() const; |
|---|
| 39 | bool isIdentity() const; |
|---|
| 40 | |
|---|
| 41 | Q_GUI_EXPORT void prepare(); |
|---|
| 42 | enum TransformFlag { |
|---|
| 43 | Unpremultiplied = 0, |
|---|
| 44 | InputOpaque = 1, |
|---|
| 45 | InputPremultiplied = 2, |
|---|
| 46 | OutputPremultiplied = 4, |
|---|
| 47 | Premultiplied = (InputPremultiplied | OutputPremultiplied) |
|---|
| 48 | }; |
|---|
| 49 | Q_DECLARE_FLAGS(TransformFlags, TransformFlag) |
|---|
| 50 | |
|---|
| 51 | QColorVector map(QColorVector color) const; |
|---|
| 52 | QColorVector mapExtended(QColorVector color) const; |
|---|
| 53 | |
|---|
| 54 | template<typename D, typename S> |
|---|
| 55 | void apply(D *dst, const S *src, qsizetype count, TransformFlags flags) const; |
|---|
| 56 | |
|---|
| 57 | private: |
|---|
| 58 | void pcsAdapt(QColorVector *buffer, qsizetype len) const; |
|---|
| 59 | template<typename S> |
|---|
| 60 | void applyConvertIn(const S *src, QColorVector *buffer, qsizetype len, TransformFlags flags) const; |
|---|
| 61 | template<typename D, typename S> |
|---|
| 62 | void applyConvertOut(D *dst, const S *src, QColorVector *buffer, qsizetype len, TransformFlags flags) const; |
|---|
| 63 | }; |
|---|
| 64 | |
|---|
| 65 | QT_END_NAMESPACE |
|---|
| 66 | |
|---|
| 67 | #endif // QCOLORTRANSFORM_P_H |
|---|
| 68 | |
|---|
