1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
122 lines
2.9 KiB
C++
122 lines
2.9 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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SPDX-FileCopyrightText: 2016 Roman Gilg <subdiff@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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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_backend->atomicModeSetting()) {
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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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