0d381846f1
Summary: The color correction manager doesn't make any specific assumptions about underlying platform, e.g. whether it's x11, etc. The platform just has to be capable of setting gamma ramps. Given that, there are no any significant technical blockers for making this feature work on x. Reviewers: #kwin, davidedmundson, romangg Reviewed By: #kwin, davidedmundson, romangg Subscribers: romangg, neobrain, GB_2, filipf, davidedmundson, ngraham, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D21345
128 lines
3.4 KiB
C++
128 lines
3.4 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) 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 "drm_pointer.h"
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#include "logging.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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DrmScopedPointer<drmModeCrtc> 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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DrmScopedPointer<drmModeObjectProperties> properties(
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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.data());
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}
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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(const GammaRamp &gamma)
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{
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uint16_t *red = const_cast<uint16_t *>(gamma.red());
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uint16_t *green = const_cast<uint16_t *>(gamma.green());
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uint16_t *blue = const_cast<uint16_t *>(gamma.blue());
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const bool isError = drmModeCrtcSetGamma(m_backend->fd(), m_id,
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gamma.size(), red, green, blue);
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return !isError;
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}
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}
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