122 lines
3.3 KiB
C++
122 lines
3.3 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) 2016 Roman Gilg <subdiff@gmail.com>
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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 2 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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#include "drm_object_crtc.h"
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#include "drm_backend.h"
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#include "drm_output.h"
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#include "drm_buffer.h"
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#include "logging.h"
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#include <colorcorrection/gammaramp.h>
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namespace KWin
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{
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DrmCrtc::DrmCrtc(uint32_t crtc_id, DrmBackend *backend, int resIndex)
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: DrmObject(crtc_id, backend->fd()),
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m_resIndex(resIndex),
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m_backend(backend)
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{
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ScopedDrmPointer<_drmModeCrtc, &drmModeFreeCrtc> modeCrtc(drmModeGetCrtc(backend->fd(), crtc_id));
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if (modeCrtc) {
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m_gammaRampSize = modeCrtc->gamma_size;
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}
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}
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DrmCrtc::~DrmCrtc()
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{
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}
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bool DrmCrtc::atomicInit()
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{
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qCDebug(KWIN_DRM) << "Atomic init for CRTC:" << resIndex() << "id:" << m_id;
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if (!initProps()) {
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return false;
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}
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return true;
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}
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bool DrmCrtc::initProps()
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{
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setPropertyNames({
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QByteArrayLiteral("MODE_ID"),
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QByteArrayLiteral("ACTIVE"),
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});
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drmModeObjectProperties *properties = drmModeObjectGetProperties(fd(), m_id, DRM_MODE_OBJECT_CRTC);
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if (!properties) {
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qCWarning(KWIN_DRM) << "Failed to get properties for crtc " << m_id ;
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return false;
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}
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int propCount = int(PropertyIndex::Count);
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for (int j = 0; j < propCount; ++j) {
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initProp(j, properties);
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}
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drmModeFreeObjectProperties(properties);
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return true;
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}
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void DrmCrtc::flipBuffer()
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{
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if (m_currentBuffer && m_backend->deleteBufferAfterPageFlip() && m_currentBuffer != m_nextBuffer) {
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delete m_currentBuffer;
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}
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m_currentBuffer = m_nextBuffer;
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m_nextBuffer = nullptr;
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delete m_blackBuffer;
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m_blackBuffer = nullptr;
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}
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bool DrmCrtc::blank()
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{
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if (!m_output) {
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return false;
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}
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if (!m_blackBuffer) {
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DrmDumbBuffer *blackBuffer = m_backend->createBuffer(m_output->pixelSize());
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if (!blackBuffer->map()) {
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delete blackBuffer;
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return false;
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}
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blackBuffer->image()->fill(Qt::black);
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m_blackBuffer = blackBuffer;
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}
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if (m_output->setModeLegacy(m_blackBuffer)) {
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if (m_currentBuffer && m_backend->deleteBufferAfterPageFlip()) {
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delete m_currentBuffer;
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delete m_nextBuffer;
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}
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m_currentBuffer = nullptr;
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m_nextBuffer = nullptr;
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return true;
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}
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return false;
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}
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bool DrmCrtc::setGammaRamp(ColorCorrect::GammaRamp &gamma) {
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bool isError = drmModeCrtcSetGamma(m_backend->fd(), m_id, gamma.size,
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gamma.red, gamma.green, gamma.blue);
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return !isError;
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}
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}
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