| 1 | // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
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| 2 | // Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). |
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| 3 | // 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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| 4 | |
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| 5 | #include "qdithering.h" |
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| 6 | #include "qrenderstate_p.h" |
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| 7 | #include <private/qnode_p.h> |
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| 8 | |
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| 9 | QT_BEGIN_NAMESPACE |
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| 10 | |
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| 11 | namespace Qt3DRender { |
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| 12 | |
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| 13 | /*! |
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| 14 | \class Qt3DRender::QDithering |
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| 15 | \since 5.7 |
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| 16 | \inmodule Qt3DRender |
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| 17 | \brief Enable dithering. |
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| 18 | |
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| 19 | A Qt3DRender::QDithering class enables dithering. Dithering adds noise to the |
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| 20 | color values to randomize quantization error in order to prevent large scale |
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| 21 | patterns in the final image, such as banding. Dithering is most useful when |
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| 22 | rendering to a surface with low color bit depth, such as RGB565 or RGBA4444. |
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| 23 | */ |
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| 24 | |
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| 25 | /*! |
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| 26 | \qmltype Dithering |
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| 27 | \since 5.7 |
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| 28 | \inqmlmodule Qt3D.Render |
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| 29 | \inherits RenderState |
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| 30 | \instantiates Qt3DRender::QDithering |
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| 31 | \brief Enable dithering. |
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| 32 | |
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| 33 | A Dithering type enables dithering. Dithering adds noise to the |
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| 34 | color values to randomize quantization error in order to prevent large scale |
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| 35 | patterns in the final image, such as banding. Dithering is most useful when |
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| 36 | rendering to a surface with low color bit depth, such as RGB565 or RGBA4444. |
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| 37 | */ |
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| 38 | |
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| 39 | class QDitheringPrivate : public QRenderStatePrivate |
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| 40 | { |
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| 41 | public: |
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| 42 | QDitheringPrivate() |
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| 43 | : QRenderStatePrivate(Render::DitheringStateMask) |
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| 44 | {} |
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| 45 | |
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| 46 | Q_DECLARE_PUBLIC(QDithering) |
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| 47 | }; |
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| 48 | |
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| 49 | /*! |
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| 50 | The constructor creates a new QDithering::QDithering instance with |
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| 51 | the specified \a parent. |
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| 52 | */ |
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| 53 | QDithering::QDithering(QNode *parent) |
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| 54 | : QRenderState(*new QDitheringPrivate, parent) |
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| 55 | { |
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| 56 | } |
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| 57 | |
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| 58 | /*! \internal */ |
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| 59 | QDithering::~QDithering() |
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| 60 | { |
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| 61 | } |
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| 62 | |
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| 63 | } // namespace Qt3DRender |
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| 64 | |
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| 65 | QT_END_NAMESPACE |
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| 66 | |
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| 67 | #include "moc_qdithering.cpp" |
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| 68 | |
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