| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QCOLORTRANSFORM_P_H |
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| 5 | #define QCOLORTRANSFORM_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include "qcolormatrix_p.h" |
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| 19 | #include "qcolorspace_p.h" |
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| 20 | |
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| 21 | #include <QtCore/qshareddata.h> |
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| 22 | #include <QtGui/qrgbafloat.h> |
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| 23 | |
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| 24 | QT_BEGIN_NAMESPACE |
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| 25 | |
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| 26 | class QColorTransformPrivate : public QSharedData |
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| 27 | { |
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| 28 | public: |
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| 29 | QColorMatrix colorMatrix; |
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| 30 | QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceIn; |
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| 31 | QExplicitlySharedDataPointer<const QColorSpacePrivate> colorSpaceOut; |
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| 32 | |
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| 33 | static QColorTransformPrivate *get(const QColorTransform &q) |
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| 34 | { return q.d.data(); } |
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| 35 | |
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| 36 | void updateLutsIn() const; |
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| 37 | void updateLutsOut() const; |
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| 38 | bool isIdentity() const; |
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| 39 | |
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| 40 | Q_GUI_EXPORT void prepare(); |
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| 41 | enum TransformFlag { |
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| 42 | Unpremultiplied = 0, |
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| 43 | InputOpaque = 1, |
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| 44 | InputPremultiplied = 2, |
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| 45 | OutputPremultiplied = 4, |
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| 46 | Premultiplied = (InputPremultiplied | OutputPremultiplied) |
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| 47 | }; |
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| 48 | Q_DECLARE_FLAGS(TransformFlags, TransformFlag) |
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| 49 | |
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| 50 | void apply(QRgb *dst, const QRgb *src, qsizetype count, TransformFlags flags = Unpremultiplied) const; |
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| 51 | void apply(QRgba64 *dst, const QRgba64 *src, qsizetype count, TransformFlags flags = Unpremultiplied) const; |
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| 52 | void apply(QRgbaFloat32 *dst, const QRgbaFloat32 *src, qsizetype count, |
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| 53 | TransformFlags flags = Unpremultiplied) const; |
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| 54 | void apply(quint8 *dst, const QRgb *src, qsizetype count, TransformFlags flags = Unpremultiplied) const; |
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| 55 | void apply(quint16 *dst, const QRgba64 *src, qsizetype count, TransformFlags flags = Unpremultiplied) const; |
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| 56 | |
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| 57 | template<typename T> |
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| 58 | void apply(T *dst, const T *src, qsizetype count, TransformFlags flags) const; |
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| 59 | |
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| 60 | template<typename D, typename S> |
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| 61 | void applyReturnGray(D *dst, const S *src, qsizetype count, TransformFlags flags) const; |
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| 62 | |
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| 63 | }; |
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| 64 | |
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| 65 | QT_END_NAMESPACE |
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| 66 | |
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| 67 | #endif // QCOLORTRANSFORM_P_H |
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| 68 | |
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