85 lines
2 KiB
C++
85 lines
2 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(DrmGpu *gpu, uint32_t crtcId, DrmBackend *backend, int resIndex)
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: DrmObject(gpu, crtc_id)
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, m_crtc(drmModeGetCrtc(gpu->fd(), crtcId))
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, m_resIndex(resIndex)
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, m_backend(backend)
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{
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}
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bool DrmCrtc::init()
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{
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if (!m_crtc) {
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return false;
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}
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qCDebug(KWIN_DRM) << "Init for CRTC:" << resIndex() << "id:" << id();
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return initProps({
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PropertyDefinition(QByteArrayLiteral("MODE_ID")),
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PropertyDefinition(QByteArrayLiteral("ACTIVE")),
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}, DRM_MODE_OBJECT_CRTC);
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}
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void DrmCrtc::flipBuffer()
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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(DrmOutput *output)
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{
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if (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 = new DrmDumbBuffer(gpu(), 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 (output->setModeLegacy(m_blackBuffer)) {
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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(gpu()->fd(), 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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