146 lines
4 KiB
C++
146 lines
4 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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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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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 3 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_HWCOMPOSER_BACKEND_H
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#define KWIN_HWCOMPOSER_BACKEND_H
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#include "platform.h"
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#include "input.h"
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#include <QElapsedTimer>
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#include <QMutex>
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#include <QWaitCondition>
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// libhybris
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#include <hwcomposer_window.h>
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// needed as hwcomposer_window.h includes EGL which on non-arm includes Xlib
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#include <fixx11h.h>
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typedef struct hwc_display_contents_1 hwc_display_contents_1_t;
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typedef struct hwc_layer_1 hwc_layer_1_t;
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typedef struct hwc_composer_device_1 hwc_composer_device_1_t;
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struct light_device_t;
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class HWComposerNativeWindowBuffer;
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namespace KWin
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{
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class HwcomposerWindow;
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class BacklightInputEventFilter;
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class HwcomposerBackend : 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 "hwcomposer.json")
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public:
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explicit HwcomposerBackend(QObject *parent = nullptr);
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virtual ~HwcomposerBackend();
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void init() override;
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Screens *createScreens(QObject *parent = nullptr) override;
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OpenGLBackend *createOpenGLBackend() override;
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QSize screenSize() const override {
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return m_displaySize;
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}
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HwcomposerWindow *createSurface();
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QSize size() const {
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return m_displaySize;
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}
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hwc_composer_device_1_t *device() const {
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return m_device;
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}
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int refreshRate() const {
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return m_refreshRate;
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}
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void enableVSync(bool enable);
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void waitVSync();
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void wakeVSync();
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bool isBacklightOff() const {
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return m_outputBlank;
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}
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Q_SIGNALS:
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void outputBlankChanged();
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private Q_SLOTS:
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void toggleBlankOutput();
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void screenBrightnessChanged(int brightness) {
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m_oldScreenBrightness = brightness;
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}
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private:
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void initLights();
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void toggleScreenBrightness();
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QSize m_displaySize;
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hwc_composer_device_1_t *m_device = nullptr;
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light_device_t *m_lights = nullptr;
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bool m_outputBlank = true;
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int m_refreshRate = 60000;
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int m_vsyncInterval = 16;
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int m_oldScreenBrightness = 0x7f;
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bool m_hasVsync = false;
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QMutex m_vsyncMutex;
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QWaitCondition m_vsyncWaitCondition;
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QScopedPointer<BacklightInputEventFilter> m_filter;
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};
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class HwcomposerWindow : public HWComposerNativeWindow
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{
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public:
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virtual ~HwcomposerWindow();
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void present(HWComposerNativeWindowBuffer *buffer);
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private:
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friend HwcomposerBackend;
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HwcomposerWindow(HwcomposerBackend *backend);
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HwcomposerBackend *m_backend;
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hwc_display_contents_1_t **m_list;
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};
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class BacklightInputEventFilter : public InputEventFilter
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{
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public:
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BacklightInputEventFilter(HwcomposerBackend *backend);
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virtual ~BacklightInputEventFilter();
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bool pointerEvent(QMouseEvent *event, quint32 nativeButton) override;
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bool wheelEvent(QWheelEvent *event) override;
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bool keyEvent(QKeyEvent *event) override;
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bool touchDown(quint32 id, const QPointF &pos, quint32 time) override;
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bool touchMotion(quint32 id, const QPointF &pos, quint32 time) override;
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bool touchUp(quint32 id, quint32 time) override;
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private:
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void toggleBacklight();
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HwcomposerBackend *m_backend;
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QElapsedTimer m_doubleTapTimer;
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QVector<qint32> m_touchPoints;
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bool m_secondTap = false;
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};
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}
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#endif
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