1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
/********************************************************************
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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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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-FileCopyrightText: 2019 Roman Gilg <subdiff@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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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);
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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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