| 1 | // Copyright (C) 2016 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 QPLATFORMSHAREDGRAPHICSCACHE_H |
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| 5 | #define QPLATFORMSHAREDGRAPHICSCACHE_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 part of the QPA API and is not meant to be used |
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| 12 | // in applications. Usage of this API may make your code |
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| 13 | // source and binary incompatible with future versions of Qt. |
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| 14 | // |
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| 15 | |
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| 16 | #include <QtGui/qtguiglobal.h> |
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| 17 | #include <QtCore/qobject.h> |
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| 18 | #include <QtGui/qimage.h> |
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| 19 | |
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| 20 | QT_BEGIN_NAMESPACE |
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| 21 | |
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| 22 | class Q_GUI_EXPORT QPlatformSharedGraphicsCache: public QObject |
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| 23 | { |
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| 24 | Q_OBJECT |
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| 25 | public: |
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| 26 | enum PixelFormat |
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| 27 | { |
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| 28 | Alpha8 |
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| 29 | }; |
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| 30 | |
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| 31 | enum BufferType |
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| 32 | { |
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| 33 | OpenGLTexture |
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| 34 | }; |
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| 35 | |
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| 36 | explicit QPlatformSharedGraphicsCache(QObject *parent = nullptr) : QObject(parent) {} |
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| 37 | |
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| 38 | virtual void beginRequestBatch() = 0; |
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| 39 | virtual void ensureCacheInitialized(const QByteArray &cacheId, BufferType bufferType, |
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| 40 | PixelFormat pixelFormat) = 0; |
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| 41 | virtual void requestItems(const QByteArray &cacheId, const QList<quint32> &itemIds) = 0; |
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| 42 | virtual void insertItems(const QByteArray &cacheId, const QList<quint32> &itemIds, |
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| 43 | const QList<QImage> &items) = 0; |
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| 44 | virtual void releaseItems(const QByteArray &cacheId, const QList<quint32> &itemIds) = 0; |
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| 45 | virtual void endRequestBatch() = 0; |
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| 46 | |
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| 47 | virtual bool requestBatchStarted() const = 0; |
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| 48 | |
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| 49 | virtual uint textureIdForBuffer(void *bufferId) = 0; |
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| 50 | virtual void referenceBuffer(void *bufferId) = 0; |
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| 51 | virtual bool dereferenceBuffer(void *bufferId) = 0; |
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| 52 | virtual QSize sizeOfBuffer(void *bufferId) = 0; |
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| 53 | virtual void *eglImageForBuffer(void *bufferId) = 0; |
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| 54 | |
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| 55 | Q_SIGNALS: |
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| 56 | void itemsMissing(const QByteArray &cacheId, const QList<quint32> &itemIds); |
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| 57 | void itemsAvailable(const QByteArray &cacheId, void *bufferId, const QList<quint32> &itemIds, |
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| 58 | const QList<QPoint> &positionsInBuffer); |
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| 59 | void itemsInvalidated(const QByteArray &cacheId, const QList<quint32> &itemIds); |
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| 60 | void itemsUpdated(const QByteArray &cacheId, void *bufferId, const QList<quint32> &itemIds, |
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| 61 | const QList<QPoint> &positionsInBuffer); |
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| 62 | }; |
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| 63 | |
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| 64 | QT_END_NAMESPACE |
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| 65 | |
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| 66 | #endif // QPLATFORMSHAREDGRAPHICSCACHE_H |
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| 67 | |
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