kwin/plugins/platforms/drm/drm_object_crtc.cpp

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/********************************************************************
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/>.
*********************************************************************/
#include "drm_object_crtc.h"
#include "logging.h"
namespace KWin
{
DrmCrtc::DrmCrtc(uint32_t crtc_id, int fd)
: DrmObject(crtc_id, fd)
{
}
DrmCrtc::~DrmCrtc() = default;
bool DrmCrtc::init()
{
qCDebug(KWIN_DRM) << "Creating CRTC" << m_id;
if (!initProps()) {
return false;
}
return true;
}
bool DrmCrtc::initProps()
{
m_propsNames = {
QByteArrayLiteral("MODE_ID"),
QByteArrayLiteral("ACTIVE"),
};
drmModeObjectProperties *properties = drmModeObjectGetProperties(m_fd, m_id, DRM_MODE_OBJECT_CRTC);
if (!properties) {
qCWarning(KWIN_DRM) << "Failed to get properties for crtc " << m_id ;
return false;
}
int propCount = int(PropertyIndex::Count);
for (int j = 0; j < propCount; ++j) {
initProp(j, properties);
}
drmModeFreeObjectProperties(properties);
return true;
}
}