e71a230213
We use the hw module's backlight and set the color to either 0 or FF depending on whetehr we want to have the screen on or off. This turns the backlight off properly. It is bound to the toggleBlank functionality so that we always turn on/off the backlight depending on whether our compositor is on or off. In addition we listen to key release events on the power button to toggle the state. REVIEW: 126083
110 lines
3 KiB
C++
110 lines
3 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 "abstract_backend.h"
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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 HwcomposerBackend : public AbstractBackend
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{
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Q_OBJECT
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Q_INTERFACES(KWin::AbstractBackend)
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Q_PLUGIN_METADATA(IID "org.kde.kwin.AbstractBackend" 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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private Q_SLOTS:
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void toggleBlankOutput();
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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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bool m_hasVsync = false;
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QMutex m_vsyncMutex;
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QWaitCondition m_vsyncWaitCondition;
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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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}
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#endif
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