diff --git a/plugins/platforms/drm/drm_output.cpp b/plugins/platforms/drm/drm_output.cpp index abcdc4dde..0e93bc616 100644 --- a/plugins/platforms/drm/drm_output.cpp +++ b/plugins/platforms/drm/drm_output.cpp @@ -1,886 +1,912 @@ /******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2015 Martin Gräßlin This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . *********************************************************************/ #include "drm_output.h" #include "drm_backend.h" #include "drm_object_plane.h" #include "drm_object_crtc.h" #include "drm_object_connector.h" #include #include "composite.h" #include "logind.h" #include "logging.h" #include "main.h" #include "screens_drm.h" #include "wayland_server.h" // KWayland #include #include #include #include #include #include // KF5 #include #include #include // Qt #include // drm #include #include #include namespace KWin { DrmOutput::DrmOutput(DrmBackend *backend) : QObject() , m_backend(backend) { } DrmOutput::~DrmOutput() { hideCursor(); cleanupBlackBuffer(); delete m_crtc; delete m_conn; delete m_waylandOutput.data(); delete m_waylandOutputDevice.data(); } void DrmOutput::hideCursor() { drmModeSetCursor(m_backend->fd(), m_crtcId, 0, 0, 0); } void DrmOutput::restoreSaved() { if (!m_savedCrtc.isNull()) { drmModeSetCrtc(m_backend->fd(), m_savedCrtc->crtc_id, m_savedCrtc->buffer_id, m_savedCrtc->x, m_savedCrtc->y, &m_connector, 1, &m_savedCrtc->mode); } } void DrmOutput::showCursor(DrmBuffer *c) { const QSize &s = c->size(); drmModeSetCursor(m_backend->fd(), m_crtcId, c->handle(), s.width(), s.height()); } void DrmOutput::moveCursor(const QPoint &globalPos) { const QPoint p = globalPos - m_globalPos; drmModeMoveCursor(m_backend->fd(), m_crtcId, p.x(), p.y()); } QSize DrmOutput::size() const { return QSize(m_mode.hdisplay, m_mode.vdisplay); } QRect DrmOutput::geometry() const { return QRect(m_globalPos, size()); } static KWayland::Server::OutputInterface::DpmsMode toWaylandDpmsMode(DrmOutput::DpmsMode mode) { using namespace KWayland::Server; switch (mode) { case DrmOutput::DpmsMode::On: return OutputInterface::DpmsMode::On; case DrmOutput::DpmsMode::Standby: return OutputInterface::DpmsMode::Standby; case DrmOutput::DpmsMode::Suspend: return OutputInterface::DpmsMode::Suspend; case DrmOutput::DpmsMode::Off: return OutputInterface::DpmsMode::Off; default: Q_UNREACHABLE(); } } static DrmOutput::DpmsMode fromWaylandDpmsMode(KWayland::Server::OutputInterface::DpmsMode wlMode) { using namespace KWayland::Server; switch (wlMode) { case OutputInterface::DpmsMode::On: return DrmOutput::DpmsMode::On; case OutputInterface::DpmsMode::Standby: return DrmOutput::DpmsMode::Standby; case OutputInterface::DpmsMode::Suspend: return DrmOutput::DpmsMode::Suspend; case OutputInterface::DpmsMode::Off: return DrmOutput::DpmsMode::Off; default: Q_UNREACHABLE(); } } +static QHash s_connectorNames = { + {DRM_MODE_CONNECTOR_Unknown, QByteArrayLiteral("Unknown")}, + {DRM_MODE_CONNECTOR_VGA, QByteArrayLiteral("VGA")}, + {DRM_MODE_CONNECTOR_DVII, QByteArrayLiteral("DVI-I")}, + {DRM_MODE_CONNECTOR_DVID, QByteArrayLiteral("DVI-D")}, + {DRM_MODE_CONNECTOR_DVIA, QByteArrayLiteral("DVI-A")}, + {DRM_MODE_CONNECTOR_Composite, QByteArrayLiteral("Composite")}, + {DRM_MODE_CONNECTOR_SVIDEO, QByteArrayLiteral("SVIDEO")}, + {DRM_MODE_CONNECTOR_LVDS, QByteArrayLiteral("LVDS")}, + {DRM_MODE_CONNECTOR_Component, QByteArrayLiteral("Component")}, + {DRM_MODE_CONNECTOR_9PinDIN, QByteArrayLiteral("DIN")}, + {DRM_MODE_CONNECTOR_DisplayPort, QByteArrayLiteral("DP")}, + {DRM_MODE_CONNECTOR_HDMIA, QByteArrayLiteral("HDMI-A")}, + {DRM_MODE_CONNECTOR_HDMIB, QByteArrayLiteral("HDMI-B")}, + {DRM_MODE_CONNECTOR_TV, QByteArrayLiteral("TV")}, + {DRM_MODE_CONNECTOR_eDP, QByteArrayLiteral("eDP")}, + {DRM_MODE_CONNECTOR_VIRTUAL, QByteArrayLiteral("Virtual")}, + {DRM_MODE_CONNECTOR_DSI, QByteArrayLiteral("DSI")} +}; + + bool DrmOutput::init(drmModeConnector *connector) { initEdid(connector); initDpms(connector); initUuid(); if (m_backend->atomicModeSetting()) { if (!initPrimaryPlane()) { return false; } } m_savedCrtc.reset(drmModeGetCrtc(m_backend->fd(), m_crtcId)); if (!blank()) { return false; } setDpms(DpmsMode::On); if (!m_waylandOutput.isNull()) { delete m_waylandOutput.data(); m_waylandOutput.clear(); } m_waylandOutput = waylandServer()->display()->createOutput(); if (!m_waylandOutputDevice.isNull()) { delete m_waylandOutputDevice.data(); m_waylandOutputDevice.clear(); } m_waylandOutputDevice = waylandServer()->display()->createOutputDevice(); m_waylandOutputDevice->setUuid(m_uuid); if (!m_edid.eisaId.isEmpty()) { m_waylandOutput->setManufacturer(QString::fromLatin1(m_edid.eisaId)); } else { m_waylandOutput->setManufacturer(i18n("unknown")); } m_waylandOutputDevice->setManufacturer(m_waylandOutput->manufacturer()); + QString connectorName = s_connectorNames.value(connector->connector_type, QByteArrayLiteral("Unknown")); + QString modelName; + if (!m_edid.monitorName.isEmpty()) { QString model = QString::fromLatin1(m_edid.monitorName); if (!m_edid.serialNumber.isEmpty()) { model.append('/'); model.append(QString::fromLatin1(m_edid.serialNumber)); } - m_waylandOutput->setModel(model); + modelName = model; } else if (!m_edid.serialNumber.isEmpty()) { - m_waylandOutput->setModel(QString::fromLatin1(m_edid.serialNumber)); + modelName = QString::fromLatin1(m_edid.serialNumber); } else { - m_waylandOutput->setModel(i18n("unknown")); + modelName = i18n("unknown"); } - m_waylandOutputDevice->setModel(m_waylandOutput->model()); + m_waylandOutput->setModel(connectorName + QStringLiteral("-") + QString::number(connector->connector_type_id) + QStringLiteral("-") + modelName); + m_waylandOutputDevice->setModel(m_waylandOutput->model()); + QSize physicalSize = !m_edid.physicalSize.isEmpty() ? m_edid.physicalSize : QSize(connector->mmWidth, connector->mmHeight); // the size might be completely borked. E.g. Samsung SyncMaster 2494HS reports 160x90 while in truth it's 520x292 // as this information is used to calculate DPI info, it's going to result in everything being huge const QByteArray unknown = QByteArrayLiteral("unkown"); KConfigGroup group = kwinApp()->config()->group("EdidOverwrite").group(m_edid.eisaId.isEmpty() ? unknown : m_edid.eisaId) .group(m_edid.monitorName.isEmpty() ? unknown : m_edid.monitorName) .group(m_edid.serialNumber.isEmpty() ? unknown : m_edid.serialNumber); if (group.hasKey("PhysicalSize")) { const QSize overwriteSize = group.readEntry("PhysicalSize", physicalSize); qCWarning(KWIN_DRM) << "Overwriting monitor physical size for" << m_edid.eisaId << "/" << m_edid.monitorName << "/" << m_edid.serialNumber << " from " << physicalSize << "to " << overwriteSize; physicalSize = overwriteSize; } m_waylandOutput->setPhysicalSize(physicalSize); m_waylandOutputDevice->setPhysicalSize(physicalSize); // read in mode information for (int i = 0; i < connector->count_modes; ++i) { // TODO: in AMS here we could read and store for later every mode's blob_id // would simplify isCurrentMode(..) and presentAtomically(..) in case of mode set auto *m = &connector->modes[i]; KWayland::Server::OutputInterface::ModeFlags flags; KWayland::Server::OutputDeviceInterface::ModeFlags deviceflags; if (isCurrentMode(m)) { flags |= KWayland::Server::OutputInterface::ModeFlag::Current; deviceflags |= KWayland::Server::OutputDeviceInterface::ModeFlag::Current; } if (m->type & DRM_MODE_TYPE_PREFERRED) { flags |= KWayland::Server::OutputInterface::ModeFlag::Preferred; deviceflags |= KWayland::Server::OutputDeviceInterface::ModeFlag::Preferred; } // Calculate higher precision (mHz) refresh rate // logic based on Weston, see compositor-drm.c quint64 refreshRate = (m->clock * 1000000LL / m->htotal + m->vtotal / 2) / m->vtotal; if (m->flags & DRM_MODE_FLAG_INTERLACE) { refreshRate *= 2; } if (m->flags & DRM_MODE_FLAG_DBLSCAN) { refreshRate /= 2; } if (m->vscan > 1) { refreshRate /= m->vscan; } m_waylandOutput->addMode(QSize(m->hdisplay, m->vdisplay), flags, refreshRate); KWayland::Server::OutputDeviceInterface::Mode mode; mode.id = i; mode.size = QSize(m->hdisplay, m->vdisplay); mode.flags = deviceflags; mode.refreshRate = refreshRate; qCDebug(KWIN_DRM) << "Adding mode: " << i << mode.size; m_waylandOutputDevice->addMode(mode); } // set dpms if (!m_dpms.isNull()) { m_waylandOutput->setDpmsSupported(true); m_waylandOutput->setDpmsMode(toWaylandDpmsMode(m_dpmsMode)); connect(m_waylandOutput.data(), &KWayland::Server::OutputInterface::dpmsModeRequested, this, [this] (KWayland::Server::OutputInterface::DpmsMode mode) { setDpms(fromWaylandDpmsMode(mode)); }, Qt::QueuedConnection ); } m_waylandOutput->create(); qCDebug(KWIN_DRM) << "Created OutputDevice"; m_waylandOutputDevice->create(); return true; } void DrmOutput::initUuid() { QCryptographicHash hash(QCryptographicHash::Md5); hash.addData(QByteArray::number(m_connector)); hash.addData(m_edid.eisaId); hash.addData(m_edid.monitorName); hash.addData(m_edid.serialNumber); m_uuid = hash.result().toHex().left(10); } bool DrmOutput::isCurrentMode(const drmModeModeInfo *mode) const { return mode->clock == m_mode.clock && mode->hdisplay == m_mode.hdisplay && mode->hsync_start == m_mode.hsync_start && mode->hsync_end == m_mode.hsync_end && mode->htotal == m_mode.htotal && mode->hskew == m_mode.hskew && mode->vdisplay == m_mode.vdisplay && mode->vsync_start == m_mode.vsync_start && mode->vsync_end == m_mode.vsync_end && mode->vtotal == m_mode.vtotal && mode->vscan == m_mode.vscan && mode->vrefresh == m_mode.vrefresh && mode->flags == m_mode.flags && mode->type == m_mode.type && qstrcmp(mode->name, m_mode.name) == 0; } static bool verifyEdidHeader(drmModePropertyBlobPtr edid) { const uint8_t *data = reinterpret_cast(edid->data); if (data[0] != 0x00) { return false; } for (int i = 1; i < 7; ++i) { if (data[i] != 0xFF) { return false; } } if (data[7] != 0x00) { return false; } return true; } static QByteArray extractEisaId(drmModePropertyBlobPtr edid) { /* * From EDID standard section 3.4: * The ID Manufacturer Name field, shown in Table 3.5, contains a 2-byte representation of the monitor's * manufacturer. This is the same as the EISA ID. It is based on compressed ASCII, “0001=A” ... “11010=Z”. * * The table: * | Byte | Bit | * | | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | * ---------------------------------------- * | 1 | 0)| (4| 3 | 2 | 1 | 0)| (4| 3 | * | | * | Character 1 | Char 2| * ---------------------------------------- * | 2 | 2 | 1 | 0)| (4| 3 | 2 | 1 | 0)| * | | Character2| Character 3 | * ---------------------------------------- **/ const uint8_t *data = reinterpret_cast(edid->data); static const uint offset = 0x8; char id[4]; if (data[offset] >> 7) { // bit at position 7 is not a 0 return QByteArray(); } // shift two bits to right, and with 7 right most bits id[0] = 'A' + ((data[offset] >> 2) & 0x1f) -1; // for first byte: take last two bits and shift them 3 to left (000xx000) // for second byte: shift 5 bits to right and take 3 right most bits (00000xxx) // or both together id[1] = 'A' + (((data[offset] & 0x3) << 3) | ((data[offset + 1] >> 5) & 0x7)) - 1; // take five right most bits id[2] = 'A' + (data[offset + 1] & 0x1f) - 1; id[3] = '\0'; return QByteArray(id); } static void extractMonitorDescriptorDescription(drmModePropertyBlobPtr blob, DrmOutput::Edid &edid) { // see section 3.10.3 const uint8_t *data = reinterpret_cast(blob->data); static const uint offset = 0x36; static const uint blockLength = 18; for (int i = 0; i < 5; ++i) { const uint co = offset + i * blockLength; // Flag = 0000h when block used as descriptor if (data[co] != 0) { continue; } if (data[co + 1] != 0) { continue; } // Reserved = 00h when block used as descriptor if (data[co + 2] != 0) { continue; } /* * FFh: Monitor Serial Number - Stored as ASCII, code page # 437, ≤ 13 bytes. * FEh: ASCII String - Stored as ASCII, code page # 437, ≤ 13 bytes. * FDh: Monitor range limits, binary coded * FCh: Monitor name, stored as ASCII, code page # 437 * FBh: Descriptor contains additional color point data * FAh: Descriptor contains additional Standard Timing Identifications * F9h - 11h: Currently undefined * 10h: Dummy descriptor, used to indicate that the descriptor space is unused * 0Fh - 00h: Descriptor defined by manufacturer. */ if (data[co + 3] == 0xfc && edid.monitorName.isEmpty()) { edid.monitorName = QByteArray((const char *)(&data[co + 5]), 12).trimmed(); } if (data[co + 3] == 0xfe) { const QByteArray id = QByteArray((const char *)(&data[co + 5]), 12).trimmed(); if (!id.isEmpty()) { edid.eisaId = id; } } if (data[co + 3] == 0xff) { edid.serialNumber = QByteArray((const char *)(&data[co + 5]), 12).trimmed(); } } } static QByteArray extractSerialNumber(drmModePropertyBlobPtr edid) { // see section 3.4 const uint8_t *data = reinterpret_cast(edid->data); static const uint offset = 0x0C; /* * The ID serial number is a 32-bit serial number used to differentiate between individual instances of the same model * of monitor. Its use is optional. When used, the bit order for this field follows that shown in Table 3.6. The EDID * structure Version 1 Revision 1 and later offer a way to represent the serial number of the monitor as an ASCII string * in a separate descriptor block. */ uint32_t serialNumber = 0; serialNumber = (uint32_t) data[offset + 0]; serialNumber |= (uint32_t) data[offset + 1] << 8; serialNumber |= (uint32_t) data[offset + 2] << 16; serialNumber |= (uint32_t) data[offset + 3] << 24; if (serialNumber == 0) { return QByteArray(); } return QByteArray::number(serialNumber); } static QSize extractPhysicalSize(drmModePropertyBlobPtr edid) { const uint8_t *data = reinterpret_cast(edid->data); return QSize(data[0x15], data[0x16]) * 10; } void DrmOutput::initEdid(drmModeConnector *connector) { ScopedDrmPointer<_drmModePropertyBlob, &drmModeFreePropertyBlob> edid; for (int i = 0; i < connector->count_props; ++i) { ScopedDrmPointer<_drmModeProperty, &drmModeFreeProperty> property(drmModeGetProperty(m_backend->fd(), connector->props[i])); if (!property) { continue; } if ((property->flags & DRM_MODE_PROP_BLOB) && qstrcmp(property->name, "EDID") == 0) { edid.reset(drmModeGetPropertyBlob(m_backend->fd(), connector->prop_values[i])); } } if (!edid) { return; } // for documentation see: http://read.pudn.com/downloads110/ebook/456020/E-EDID%20Standard.pdf if (edid->length < 128) { return; } if (!verifyEdidHeader(edid.data())) { return; } m_edid.eisaId = extractEisaId(edid.data()); m_edid.serialNumber = extractSerialNumber(edid.data()); // parse monitor descriptor description extractMonitorDescriptorDescription(edid.data(), m_edid); m_edid.physicalSize = extractPhysicalSize(edid.data()); } bool DrmOutput::initPrimaryPlane() { for (int i = 0; i < m_backend->planes().size(); ++i) { DrmPlane* p = m_backend->planes()[i]; if (!p) { continue; } if (p->type() != DrmPlane::TypeIndex::Primary) { continue; } if (p->output()) { // Plane already has an output continue; } if (m_primaryPlane) { // Output already has a primary plane continue; } if (!p->isCrtcSupported(m_crtcId)) { continue; } p->setOutput(this); m_primaryPlane = p; qCDebug(KWIN_DRM) << "Initialized primary plane" << p->id() << "on CRTC" << m_crtcId; return true; } qCCritical(KWIN_DRM) << "Failed to initialize primary plane."; return false; } bool DrmOutput::initCursorPlane() // TODO: Add call in init (but needs layer support in general first) { for (int i = 0; i < m_backend->planes().size(); ++i) { DrmPlane* p = m_backend->planes()[i]; if (!p) { continue; } if (p->type() != DrmPlane::TypeIndex::Cursor) { continue; } if (p->output()) { // Plane already has an output continue; } if (m_cursorPlane) { // Output already has a cursor plane continue; } if (!p->isCrtcSupported(m_crtcId)) { continue; } p->setOutput(this); m_cursorPlane = p; qCDebug(KWIN_DRM) << "Initialized cursor plane" << p->id() << "on CRTC" << m_crtcId; return true; } return false; } void DrmOutput::initDpms(drmModeConnector *connector) { for (int i = 0; i < connector->count_props; ++i) { ScopedDrmPointer<_drmModeProperty, &drmModeFreeProperty> property(drmModeGetProperty(m_backend->fd(), connector->props[i])); if (!property) { continue; } if (qstrcmp(property->name, "DPMS") == 0) { m_dpms.swap(property); break; } } } void DrmOutput::setDpms(DrmOutput::DpmsMode mode) { if (m_dpms.isNull()) { return; } if (mode == m_dpmsMode) { qCDebug(KWIN_DRM) << "New DPMS mode equals old mode. DPMS unchanged."; return; } if (m_backend->atomicModeSetting()) { drmModeAtomicReq *req = drmModeAtomicAlloc(); if (atomicReqModesetPopulate(req, mode == DpmsMode::On) == DrmObject::AtomicReturn::Error) { qCWarning(KWIN_DRM) << "Failed to populate atomic request for output" << m_crtcId; return; } if (drmModeAtomicCommit(m_backend->fd(), req, DRM_MODE_ATOMIC_ALLOW_MODESET, this)) { qCWarning(KWIN_DRM) << "Failed to commit atomic request for output" << m_crtcId; } else { qCDebug(KWIN_DRM) << "DPMS set for output" << m_crtcId; } drmModeAtomicFree(req); } else { if (drmModeConnectorSetProperty(m_backend->fd(), m_connector, m_dpms->prop_id, uint64_t(mode)) < 0) { qCWarning(KWIN_DRM) << "Setting DPMS failed"; return; } } m_dpmsMode = mode; if (m_waylandOutput) { m_waylandOutput->setDpmsMode(toWaylandDpmsMode(m_dpmsMode)); } emit dpmsChanged(); if (m_dpmsMode != DpmsMode::On) { m_backend->outputWentOff(); } else { m_backend->checkOutputsAreOn(); blank(); if (Compositor *compositor = Compositor::self()) { compositor->addRepaintFull(); } } } QString DrmOutput::name() const { if (!m_waylandOutput) { return i18n("unknown"); } return QStringLiteral("%1 %2").arg(m_waylandOutput->manufacturer()).arg(m_waylandOutput->model()); } int DrmOutput::currentRefreshRate() const { if (!m_waylandOutput) { return 60000; } return m_waylandOutput->refreshRate(); } void DrmOutput::setGlobalPos(const QPoint &pos) { m_globalPos = pos; if (m_waylandOutput) { m_waylandOutput->setGlobalPosition(pos); } if (m_waylandOutputDevice) { m_waylandOutputDevice->setGlobalPosition(pos); } } void DrmOutput::setChanges(KWayland::Server::OutputChangeSet *changes) { m_changeset = changes; qCDebug(KWIN_DRM) << "set changes in DrmOutput"; commitChanges(); } bool DrmOutput::commitChanges() { Q_ASSERT(!m_waylandOutputDevice.isNull()); Q_ASSERT(!m_waylandOutput.isNull()); if (m_changeset.isNull()) { qCDebug(KWIN_DRM) << "no changes"; // No changes to an output is an entirely valid thing return true; } if (m_changeset->enabledChanged()) { qCDebug(KWIN_DRM) << "Setting enabled:"; m_waylandOutputDevice->setEnabled(m_changeset->enabled()); } if (m_changeset->modeChanged()) { qCDebug(KWIN_DRM) << "Setting new mode:" << m_changeset->mode(); m_waylandOutputDevice->setCurrentMode(m_changeset->mode()); // FIXME: implement for wl_output } if (m_changeset->transformChanged()) { qCDebug(KWIN_DRM) << "Server setting transform: " << (int)(m_changeset->transform()); m_waylandOutputDevice->setTransform(m_changeset->transform()); // FIXME: implement for wl_output } if (m_changeset->positionChanged()) { qCDebug(KWIN_DRM) << "Server setting position: " << m_changeset->position(); m_waylandOutput->setGlobalPosition(m_changeset->position()); m_waylandOutputDevice->setGlobalPosition(m_changeset->position()); setGlobalPos(m_changeset->position()); // may just work already! } if (m_changeset->scaleChanged()) { qCDebug(KWIN_DRM) << "Setting scale:" << m_changeset->scale(); m_waylandOutputDevice->setScale(m_changeset->scale()); // FIXME: implement for wl_output } return true; } void DrmOutput::pageFlipped() { if (m_backend->atomicModeSetting()){ foreach (DrmPlane *p, m_planesFlipList) { pageFlippedBufferRemover(p->current(), p->next()); p->setCurrent(p->next()); p->setNext(nullptr); } m_planesFlipList.clear(); } else { if (!m_nextBuffer) { return; } pageFlippedBufferRemover(m_currentBuffer, m_nextBuffer); m_currentBuffer = m_nextBuffer; m_nextBuffer = nullptr; } cleanupBlackBuffer(); } void DrmOutput::pageFlippedBufferRemover(DrmBuffer *oldbuffer, DrmBuffer *newbuffer) { if (newbuffer->deleteAfterPageFlip()) { if ( oldbuffer && oldbuffer != newbuffer ) { delete oldbuffer; } } else { // although oldbuffer's pointer is remapped in pageFlipped(), // we ignore the pointer completely anywhere else in this case newbuffer->releaseGbm(); } } void DrmOutput::cleanupBlackBuffer() { if (m_blackBuffer) { delete m_blackBuffer; m_blackBuffer = nullptr; } } bool DrmOutput::blank() { if (!m_blackBuffer) { m_blackBuffer = m_backend->createBuffer(size()); if (!m_blackBuffer->map()) { cleanupBlackBuffer(); return false; } m_blackBuffer->image()->fill(Qt::black); } // TODO: Do this atomically return setModeLegacy(m_blackBuffer); } bool DrmOutput::present(DrmBuffer *buffer) { if (!buffer || buffer->bufferId() == 0) { return false; } if (m_backend->atomicModeSetting()) { return presentAtomically(buffer); } else { return presentLegacy(buffer); } } bool DrmOutput::presentAtomically(DrmBuffer *buffer) { if (!LogindIntegration::self()->isActiveSession()) { qCWarning(KWIN_DRM) << "Logind session not active."; return false; } if (m_dpmsMode != DpmsMode::On) { qCWarning(KWIN_DRM) << "No present() while screen off."; return false; } if (m_primaryPlane->next()) { qCWarning(KWIN_DRM) << "Page not yet flipped."; return false; } DrmObject::AtomicReturn ret; uint32_t flags = DRM_MODE_ATOMIC_NONBLOCK | DRM_MODE_PAGE_FLIP_EVENT; // TODO: throwing an exception would be really handy here! (would mean change of compile options) drmModeAtomicReq *req = drmModeAtomicAlloc(); if (!req) { qCWarning(KWIN_DRM) << "DRM: couldn't allocate atomic request"; delete buffer; return false; } // Do we need to set a new mode first? bool doModeset = !m_primaryPlane->current(); if (doModeset) { qCDebug(KWIN_DRM) << "Atomic Modeset requested"; if (drmModeCreatePropertyBlob(m_backend->fd(), &m_mode, sizeof(m_mode), &m_blobId)) { qCWarning(KWIN_DRM) << "Failed to create property blob"; delete buffer; return false; } ret = atomicReqModesetPopulate(req, true); if (ret == DrmObject::AtomicReturn::Error){ drmModeAtomicFree(req); delete buffer; return false; } if (ret == DrmObject::AtomicReturn::Success) { flags |= DRM_MODE_ATOMIC_ALLOW_MODESET; } } m_primaryPlane->setNext(buffer); // TODO: Later not only use the primary plane for the buffer! // i.e.: Assign planes bool anyDamage = false; foreach (DrmPlane* p, m_backend->planes()){ if (p->output() != this) { continue; } ret = p->atomicReqPlanePopulate(req); if (ret == DrmObject::AtomicReturn::Error) { drmModeAtomicFree(req); m_primaryPlane->setNext(nullptr); m_planesFlipList.clear(); delete buffer; return false; } if (ret == DrmObject::AtomicReturn::Success) { anyDamage = true; m_planesFlipList << p; } } // no damage but force flip for atleast the primary plane anyway if (!anyDamage) { m_primaryPlane->setPropsValid(0); if (m_primaryPlane->atomicReqPlanePopulate(req) == DrmObject::AtomicReturn::Error) { drmModeAtomicFree(req); m_primaryPlane->setNext(nullptr); m_planesFlipList.clear(); delete buffer; return false; } m_planesFlipList << m_primaryPlane; } if (drmModeAtomicCommit(m_backend->fd(), req, flags, this)) { qCWarning(KWIN_DRM) << "Atomic request failed to commit:" << strerror(errno); drmModeAtomicFree(req); m_primaryPlane->setNext(nullptr); m_planesFlipList.clear(); delete buffer; return false; } if (doModeset) { m_crtc->setPropsValid(m_crtc->propsValid() | m_crtc->propsPending()); m_conn->setPropsValid(m_conn->propsValid() | m_conn->propsPending()); } foreach (DrmPlane* p, m_planesFlipList) { p->setPropsValid(p->propsValid() | p->propsPending()); } drmModeAtomicFree(req); return true; } bool DrmOutput::presentLegacy(DrmBuffer *buffer) { if (m_nextBuffer) { return false; } if (!LogindIntegration::self()->isActiveSession()) { m_nextBuffer = buffer; return false; } if (m_dpmsMode != DpmsMode::On) { return false; } // Do we need to set a new mode first? if (m_lastStride != buffer->stride() || m_lastGbm != buffer->isGbm()){ if (!setModeLegacy(buffer)) return false; } int errno_save = 0; const bool ok = drmModePageFlip(m_backend->fd(), m_crtcId, buffer->bufferId(), DRM_MODE_PAGE_FLIP_EVENT, this) == 0; if (ok) { m_nextBuffer = buffer; } else { errno_save = errno; qCWarning(KWIN_DRM) << "Page flip failed:" << strerror(errno); delete buffer; } return ok; } bool DrmOutput::setModeLegacy(DrmBuffer *buffer) { if (drmModeSetCrtc(m_backend->fd(), m_crtcId, buffer->bufferId(), 0, 0, &m_connector, 1, &m_mode) == 0) { m_lastStride = buffer->stride(); m_lastGbm = buffer->isGbm(); return true; } else { qCWarning(KWIN_DRM) << "Mode setting failed"; return false; } } DrmObject::AtomicReturn DrmOutput::atomicReqModesetPopulate(drmModeAtomicReq *req, bool enable) { if (enable) { m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::SrcW), m_mode.hdisplay << 16); m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::SrcH), m_mode.vdisplay << 16); m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::CrtcW), m_mode.hdisplay); m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::CrtcH), m_mode.vdisplay); } else { m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::SrcW), 0); m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::SrcH), 0); m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::CrtcW), 0); m_primaryPlane->setPropValue(int(DrmPlane::PropertyIndex::CrtcH), 0); } bool ret = true; m_crtc->setPropsPending(0); m_conn->setPropsPending(0); ret &= m_conn->atomicAddProperty(req, int(DrmConnector::PropertyIndex::CrtcId), enable ? m_crtc->id() : 0); ret &= m_crtc->atomicAddProperty(req, int(DrmCrtc::PropertyIndex::ModeId), enable ? m_blobId : 0); ret &= m_crtc->atomicAddProperty(req, int(DrmCrtc::PropertyIndex::Active), enable); if (!ret) { qCWarning(KWIN_DRM) << "Failed to populate atomic modeset"; return DrmObject::AtomicReturn::Error; } if (!m_crtc->propsPending() && !m_conn->propsPending()) { return DrmObject::AtomicReturn::NoChange; } return DrmObject::AtomicReturn::Success; } }