82d2860469
With Wayland KWin needs to provide certain services, which were provided before that by the Xserver. One of these is gamma correction, which includes the - by many people beloved - functionality to reduce the blue light at nighttime. This patch provides the KWin part of that. It is self contained, but in the end will work in tandem with a lib in Plasma Workspace and a KCM in Plasma Desktop, which can be used to configure Night Color. * Three modi: ** Automatic: The location and sun timings are determined automatically (location data updates will be provided by the workspace) ** Location: The sun timings are determined by fixed location data ** Timings: The sun timings are set manually by the user * Color temperature value changes are smoothly applied: ** Configuration changes, which lead to other current values are changed in a quick way over a few seconds ** Changes on sunrise and sunset are applied slowly over the course of few minutes till several hours depending on the configuration * The current color value is set immediately at startup or after suspend phases and VT switches. There is no flickering. * All configuration is done via a DBus interface, changed values are tested on correctness and applied atomically * Self contained mechanism, speaks directly to the hardware by setting the gamma ramps on the CRTC * Currently working on DRM backend, extensible to other platform backends in the future * The code is written in a way to make the classes later easily extendable to also provide normal color correction, as it's currently done by KGamma on X Test Plan: Manually with the workspace parts and added integration tests in KWin using the virtual backend. BUG:371494 Reviewers: #kwin, graesslin Subscribers: kwin, plasma-devel, #kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D5928
88 lines
2 KiB
C++
88 lines
2 KiB
C++
/********************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2016 Roman Gilg <subdiff@gmail.com>
|
|
|
|
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_DRM_OBJECT_CRTC_H
|
|
#define KWIN_DRM_OBJECT_CRTC_H
|
|
|
|
#include "drm_object.h"
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
namespace ColorCorrect {
|
|
struct GammaRamp;
|
|
}
|
|
|
|
class DrmBackend;
|
|
class DrmBuffer;
|
|
class DrmDumbBuffer;
|
|
|
|
class DrmCrtc : public DrmObject
|
|
{
|
|
public:
|
|
DrmCrtc(uint32_t crtc_id, DrmBackend *backend, int resIndex);
|
|
|
|
virtual ~DrmCrtc();
|
|
|
|
bool atomicInit();
|
|
|
|
enum class PropertyIndex {
|
|
ModeId = 0,
|
|
Active,
|
|
Count
|
|
};
|
|
|
|
bool initProps();
|
|
|
|
int resIndex() const {
|
|
return m_resIndex;
|
|
}
|
|
|
|
DrmBuffer *current() {
|
|
return m_currentBuffer;
|
|
}
|
|
DrmBuffer *next() {
|
|
return m_nextBuffer;
|
|
}
|
|
void setNext(DrmBuffer *buffer) {
|
|
m_nextBuffer = buffer;
|
|
}
|
|
|
|
void flipBuffer();
|
|
bool blank();
|
|
|
|
int getGammaRampSize() const {
|
|
return m_gammaRampSize;
|
|
}
|
|
bool setGammaRamp(ColorCorrect::GammaRamp &gamma);
|
|
|
|
private:
|
|
int m_resIndex;
|
|
uint32_t m_gammaRampSize = 0;
|
|
|
|
DrmBuffer *m_currentBuffer = nullptr;
|
|
DrmBuffer *m_nextBuffer = nullptr;
|
|
DrmDumbBuffer *m_blackBuffer = nullptr;
|
|
DrmBackend *m_backend;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|