kwin/plugins/platforms/wayland/scene_qpainter_wayland_backend.h
Martin Flöser 535b107969 Move QPainter compositor into plugin
This change is similar to D7232 and moves the scene_qpainter into a
dedicated plugin. Compared to the XRender case it's more complicated as
the platform plugins need to implement a platform specific backend.

The base implementation for this part used to be in scene_qpainter. As
the idea is to completly move it away from KWin core it would be point
less to still have the backend definition in KWin core, but it cannot
be in the scene plugin as otherwise all platforms need to link the
plugin.

To solve this a new platformsupport subdirectory is added which contains
the scene platform backend as a static library. For the OpenGL scene such
a static library will also be required.

Test Plan: SceneQPainter test still passes, nested compositor still works

Reviewers: #kwin, #plasma

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D7259
2017-09-01 17:44:49 +02:00

68 lines
1.9 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2013, 2015 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_SCENE_QPAINTER_WAYLAND_BACKEND_H
#define KWIN_SCENE_QPAINTER_WAYLAND_BACKEND_H
#include <platformsupport/scenes/qpainter/backend.h>
#include <QObject>
#include <QImage>
#include <QWeakPointer>
namespace KWayland
{
namespace Client
{
class Buffer;
}
}
namespace KWin
{
namespace Wayland
{
class WaylandBackend;
}
class WaylandQPainterBackend : public QObject, public QPainterBackend
{
Q_OBJECT
public:
explicit WaylandQPainterBackend(Wayland::WaylandBackend *b);
virtual ~WaylandQPainterBackend();
virtual void present(int mask, const QRegion& damage) override;
virtual bool usesOverlayWindow() const override;
virtual void screenGeometryChanged(const QSize &size) override;
virtual QImage *buffer() override;
virtual void prepareRenderingFrame() override;
virtual bool needsFullRepaint() const override;
private Q_SLOTS:
void remapBuffer();
private:
Wayland::WaylandBackend *m_backend;
bool m_needsFullRepaint;
QImage m_backBuffer;
QWeakPointer<KWayland::Client::Buffer> m_buffer;
};
}
#endif