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122 lines
2.8 KiB
122 lines
2.8 KiB
/* |
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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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