| 1 | // Copyright (C) 2021 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 QBACKINGSTORERHISUPPORT_P_H |
| 5 | #define QBACKINGSTORERHISUPPORT_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 <QtGui/private/qtguiglobal_p.h> |
| 19 | #include <QtGui/qwindow.h> |
| 20 | #include <QtGui/qsurfaceformat.h> |
| 21 | #include <QtGui/qoffscreensurface.h> |
| 22 | #include <rhi/qrhi.h> |
| 23 | #include <qpa/qplatformbackingstore.h> |
| 24 | |
| 25 | QT_BEGIN_NAMESPACE |
| 26 | |
| 27 | class Q_GUI_EXPORT QBackingStoreRhiSupport |
| 28 | { |
| 29 | public: |
| 30 | ~QBackingStoreRhiSupport(); |
| 31 | |
| 32 | void reset(); |
| 33 | |
| 34 | void setFormat(const QSurfaceFormat &format) { m_format = format; } |
| 35 | void setWindow(QWindow *window) { m_window = window; } |
| 36 | void setConfig(const QPlatformBackingStoreRhiConfig &config) { m_config = config; } |
| 37 | |
| 38 | bool create(); |
| 39 | |
| 40 | QRhiSwapChain *swapChainForWindow(QWindow *window); |
| 41 | |
| 42 | static QSurface::SurfaceType surfaceTypeForConfig(const QPlatformBackingStoreRhiConfig &config); |
| 43 | |
| 44 | static bool checkForceRhi(QPlatformBackingStoreRhiConfig *outConfig, QSurface::SurfaceType *outType); |
| 45 | |
| 46 | static QRhi::Implementation apiToRhiBackend(QPlatformBackingStoreRhiConfig::Api api); |
| 47 | |
| 48 | QRhi *rhi() const { return m_rhi; } |
| 49 | |
| 50 | private: |
| 51 | QSurfaceFormat m_format; |
| 52 | QWindow *m_window = nullptr; |
| 53 | QPlatformBackingStoreRhiConfig m_config; |
| 54 | QRhi *m_rhi = nullptr; |
| 55 | QOffscreenSurface *m_openGLFallbackSurface = nullptr; |
| 56 | struct SwapchainData { |
| 57 | QRhiSwapChain *swapchain = nullptr; |
| 58 | QRhiRenderPassDescriptor *renderPassDescriptor = nullptr; |
| 59 | QObject *windowWatcher = nullptr; |
| 60 | void reset(); |
| 61 | }; |
| 62 | QHash<QWindow *, SwapchainData> m_swapchains; |
| 63 | friend class QBackingStoreRhiSupportWindowWatcher; |
| 64 | }; |
| 65 | |
| 66 | class QBackingStoreRhiSupportWindowWatcher : public QObject |
| 67 | { |
| 68 | public: |
| 69 | QBackingStoreRhiSupportWindowWatcher(QBackingStoreRhiSupport *rhiSupport) : m_rhiSupport(rhiSupport) { } |
| 70 | bool eventFilter(QObject *obj, QEvent *ev) override; |
| 71 | private: |
| 72 | QBackingStoreRhiSupport *m_rhiSupport; |
| 73 | }; |
| 74 | |
| 75 | QT_END_NAMESPACE |
| 76 | |
| 77 | #endif // QBACKINGSTORERHISUPPORT_P_H |
| 78 |