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119 lines
3.1 KiB
119 lines
3.1 KiB
/******************************************************************** |
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KWin - the KDE window manager |
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This file is part of the KDE project. |
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Copyright 2015 Martin Gräßlin <mgraesslin@kde.org> |
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Copyright 2019 Roman Gilg <subdiff@gmail.com> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*********************************************************************/ |
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#ifndef KWIN_FB_BACKEND_H |
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#define KWIN_FB_BACKEND_H |
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#include "abstract_wayland_output.h" |
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#include "platform.h" |
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#include <QImage> |
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#include <QSize> |
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namespace KWin |
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{ |
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class FramebufferOutput : public AbstractWaylandOutput |
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{ |
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Q_OBJECT |
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public: |
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FramebufferOutput(QObject *parent = nullptr) : AbstractWaylandOutput(parent) {} |
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~FramebufferOutput() override = default; |
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void init(const QSize &pixelSize, const QSize &physicalSize); |
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}; |
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class KWIN_EXPORT FramebufferBackend : public Platform |
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{ |
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Q_OBJECT |
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Q_INTERFACES(KWin::Platform) |
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Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "fbdev.json") |
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public: |
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explicit FramebufferBackend(QObject *parent = nullptr); |
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~FramebufferBackend() override; |
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Screens *createScreens(QObject *parent = nullptr) override; |
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QPainterBackend *createQPainterBackend() override; |
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QSize screenSize() const override; |
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void init() override; |
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bool isValid() const { |
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return m_fd >= 0; |
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} |
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void map(); |
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void unmap(); |
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void *mappedMemory() const { |
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return m_memory; |
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} |
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int bytesPerLine() const { |
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return m_bytesPerLine; |
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} |
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int bufferSize() const { |
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return m_bufferLength; |
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} |
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quint32 bitsPerPixel() const { |
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return m_bitsPerPixel; |
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} |
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QImage::Format imageFormat() const; |
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/** |
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* @returns whether the imageFormat is BGR instead of RGB. |
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*/ |
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bool isBGR() const { |
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return m_bgr; |
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} |
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Outputs outputs() const override; |
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Outputs enabledOutputs() const override; |
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QVector<CompositingType> supportedCompositors() const override { |
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return QVector<CompositingType>{QPainterCompositing}; |
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} |
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private: |
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void openFrameBuffer(); |
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bool handleScreenInfo(); |
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void initImageFormat(); |
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QVector<FramebufferOutput*> m_outputs; |
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QByteArray m_id; |
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struct Color { |
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quint32 offset; |
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quint32 length; |
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}; |
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Color m_red; |
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Color m_green; |
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Color m_blue; |
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Color m_alpha; |
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quint32 m_bitsPerPixel = 0; |
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int m_fd = -1; |
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quint32 m_bufferLength = 0; |
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int m_bytesPerLine = 0; |
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void *m_memory = nullptr; |
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QImage::Format m_imageFormat = QImage::Format_Invalid; |
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bool m_bgr = false; |
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}; |
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} |
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#endif
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