Differential D18465 Diff 54410 plugins/platforms/wayland/scene_qpainter_wayland_backend.h

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plugins/platforms/wayland/scene_qpainter_wayland_backend.h

1	/********************************************************************	1	/********************************************************************
2	KWin - the KDE window manager	2	KWin - the KDE window manager
3	This file is part of the KDE project.	3	This file is part of the KDE project.
4		4
5	Copyright (C) 2013, 2015 Martin Gräßlin <mgraesslin@kde.org>	5	Copyright 2019 Roman Gilg <subdiff@gmail.com>
		6	Copyright 2013, 2015 Martin Gräßlin <mgraesslin@kde.org>
6		7
7	This program is free software; you can redistribute it and/or modify	8	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.	11	(at your option) any later version.
11		12
12	This program is distributed in the hope that it will be useful,	13	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
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25	#include <QObject>	26	#include <QObject>
26	#include <QImage>	27	#include <QImage>
27	#include <QWeakPointer>	28	#include <QWeakPointer>
28		29
29	namespace KWayland	30	namespace KWayland
30	{	31	{
31	namespace Client	32	namespace Client
32	{	33	{
		34	class ShmPool;
33	class Buffer;	35	class Buffer;
34	}	36	}
35	}	37	}
36		38
37	namespace KWin	39	namespace KWin
38	{	40	{
39	namespace Wayland	41	namespace Wayland
40	{	42	{
41	class WaylandBackend;	43	class WaylandBackend;
42	}	44	class WaylandOutput;
		45	class WaylandQPainterBackend;
		46
		47	class WaylandQPainterOutput : public QObject
		48	{
		49	Q_OBJECT
		50	public:
		51	WaylandQPainterOutput(WaylandOutput output, QObject parent = nullptr);
		52	~WaylandQPainterOutput();
		53
		54	bool init(KWayland::Client::ShmPool *pool);
		55	void updateSize(const QSize &size);
		56	void remapBuffer();
		57
		58	void prepareRenderingFrame();
		59	void present(const QRegion &damage);
		60
		61	private:
		62	WaylandOutput *m_waylandOutput;
		63	KWayland::Client::ShmPool *m_pool;
		64
		65	QWeakPointer<KWayland::Client::Buffer> m_buffer;
		66	QImage m_backBuffer;
		67
		68	friend class WaylandQPainterBackend;
		69	};
43		70
44	class WaylandQPainterBackend : public QObject, public QPainterBackend	71	class WaylandQPainterBackend : public QObject, public QPainterBackend
45	{	72	{
46	Q_OBJECT	73	Q_OBJECT
47	public:	74	public:
48	explicit WaylandQPainterBackend(Wayland::WaylandBackend *b);	75	explicit WaylandQPainterBackend(WaylandBackend *b);
49	virtual ~WaylandQPainterBackend();	76	virtual ~WaylandQPainterBackend();
50		77
51	virtual void present(int mask, const QRegion& damage) override;
52	virtual bool usesOverlayWindow() const override;	78	virtual bool usesOverlayWindow() const override;
53	virtual void screenGeometryChanged(const QSize &size) override;	79
54	virtual QImage *buffer() override;	80	virtual QImage *buffer() override;
		81	QImage *bufferForScreen(int screenId) override;
		82
		83	virtual void present(int mask, const QRegion& damage) override;
55	virtual void prepareRenderingFrame() override;	84	virtual void prepareRenderingFrame() override;
		85
56	virtual bool needsFullRepaint() const override;	86	virtual bool needsFullRepaint() const override;
57	private Q_SLOTS:	87	bool perScreenRendering() const override;
58	void remapBuffer();	88
59	private:	89	private:
60	Wayland::WaylandBackend *m_backend;	90	void createOutput(WaylandOutput *waylandOutput);
		91	void frameRendered();
		92
		93	WaylandBackend *m_backend;
61	bool m_needsFullRepaint;	94	bool m_needsFullRepaint;
62	QImage m_backBuffer;	95
63	QWeakPointer<KWayland::Client::Buffer> m_buffer;	96	QVector<WaylandQPainterOutput*> m_outputs;
64	};	97	};
65		98
66	}	99	}
		100	}
67		101
68	#endif	102	#endif