1 | // Copyright (C) 2016 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 QWAYLANDSHMBACKINGSTORE_H |
5 | #define QWAYLANDSHMBACKINGSTORE_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 <QtWaylandClient/private/qwaylandbuffer_p.h> |
19 | |
20 | #include <qpa/qplatformbackingstore.h> |
21 | #include <QtGui/QImage> |
22 | #include <qpa/qplatformwindow.h> |
23 | #include <QMutex> |
24 | |
25 | #include <list> |
26 | |
27 | QT_BEGIN_NAMESPACE |
28 | |
29 | namespace QtWaylandClient { |
30 | |
31 | class QWaylandDisplay; |
32 | class QWaylandAbstractDecoration; |
33 | class QWaylandWindow; |
34 | |
35 | class Q_WAYLANDCLIENT_EXPORT QWaylandShmBuffer : public QWaylandBuffer { |
36 | public: |
37 | QWaylandShmBuffer(QWaylandDisplay *display, |
38 | const QSize &size, QImage::Format format, qreal scale = 1); |
39 | ~QWaylandShmBuffer() override; |
40 | QSize size() const override { return mImage.size(); } |
41 | int scale() const override { return int(mImage.devicePixelRatio()); } |
42 | QImage *image() { return &mImage; } |
43 | |
44 | QImage *imageInsideMargins(const QMargins &margins); |
45 | private: |
46 | QImage mImage; |
47 | struct wl_shm_pool *mShmPool = nullptr; |
48 | QMargins mMargins; |
49 | QImage *mMarginsImage = nullptr; |
50 | }; |
51 | |
52 | class Q_WAYLANDCLIENT_EXPORT QWaylandShmBackingStore : public QPlatformBackingStore |
53 | { |
54 | public: |
55 | QWaylandShmBackingStore(QWindow *window, QWaylandDisplay *display); |
56 | ~QWaylandShmBackingStore() override; |
57 | |
58 | QPaintDevice *paintDevice() override; |
59 | void flush(QWindow *window, const QRegion ®ion, const QPoint &offset) override; |
60 | void resize(const QSize &size, const QRegion &staticContents) override; |
61 | void resize(const QSize &size); |
62 | void beginPaint(const QRegion ®ion) override; |
63 | void endPaint() override; |
64 | |
65 | QWaylandAbstractDecoration *windowDecoration() const; |
66 | |
67 | QMargins windowDecorationMargins() const; |
68 | QImage *entireSurface() const; |
69 | QImage *contentSurface() const; |
70 | void ensureSize(); |
71 | |
72 | QWaylandWindow *waylandWindow() const; |
73 | void iterateBuffer(); |
74 | |
75 | #if QT_CONFIG(opengl) |
76 | QImage toImage() const override; |
77 | #endif |
78 | |
79 | private: |
80 | void updateDecorations(); |
81 | QWaylandShmBuffer *getBuffer(const QSize &size); |
82 | |
83 | QWaylandDisplay *mDisplay = nullptr; |
84 | std::list<QWaylandShmBuffer *> mBuffers; |
85 | QWaylandShmBuffer *mFrontBuffer = nullptr; |
86 | QWaylandShmBuffer *mBackBuffer = nullptr; |
87 | bool mPainting = false; |
88 | bool mPendingFlush = false; |
89 | QRegion mPendingRegion; |
90 | QMutex mMutex; |
91 | |
92 | QSize mRequestedSize; |
93 | Qt::WindowFlags mCurrentWindowFlags; |
94 | }; |
95 | |
96 | } |
97 | |
98 | QT_END_NAMESPACE |
99 | |
100 | #endif |
101 | |