125 lines
2.8 KiB
C++
125 lines
2.8 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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#include "drm_gpu.h"
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namespace KWin
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{
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DrmCrtc::DrmCrtc(uint32_t crtc_id, DrmBackend *backend, DrmGpu *gpu, int resIndex)
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: DrmObject(crtc_id, gpu->fd()),
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m_resIndex(resIndex),
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m_backend(backend),
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m_gpu(gpu)
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{
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DrmScopedPointer<drmModeCrtc> modeCrtc(drmModeGetCrtc(gpu->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_gpu->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_gpu->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_gpu->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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