diff options
Diffstat (limited to 'src/platformsupport/kmsconvenience')
| -rw-r--r-- | src/platformsupport/kmsconvenience/kmsconvenience.pro | 20 | ||||
| -rw-r--r-- | src/platformsupport/kmsconvenience/qkmsdevice.cpp | 662 | ||||
| -rw-r--r-- | src/platformsupport/kmsconvenience/qkmsdevice_p.h | 170 |
3 files changed, 852 insertions, 0 deletions
diff --git a/src/platformsupport/kmsconvenience/kmsconvenience.pro b/src/platformsupport/kmsconvenience/kmsconvenience.pro new file mode 100644 index 0000000000..d0ff0d4efb --- /dev/null +++ b/src/platformsupport/kmsconvenience/kmsconvenience.pro @@ -0,0 +1,20 @@ +TARGET = QtKmsSupport +MODULE = kms_support + +QT = core-private gui-private +CONFIG += static internal_module + +DEFINES += QT_NO_CAST_FROM_ASCII +PRECOMPILED_HEADER = ../../corelib/global/qt_pch.h + +HEADERS += + qkmsdevice_p.h + +SOURCES += \ + qkmsdevice.cpp + +QMAKE_USE += drm + +LIBS_PRIVATE += $$QMAKE_LIBS_DYNLOAD + +load(qt_module) diff --git a/src/platformsupport/kmsconvenience/qkmsdevice.cpp b/src/platformsupport/kmsconvenience/qkmsdevice.cpp new file mode 100644 index 0000000000..669abab331 --- /dev/null +++ b/src/platformsupport/kmsconvenience/qkmsdevice.cpp @@ -0,0 +1,662 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2016 Pelagicore AG +** Copyright (C) 2015 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com> +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qkmsdevice_p.h" + +#include <QtCore/QJsonDocument> +#include <QtCore/QJsonObject> +#include <QtCore/QJsonArray> +#include <QtCore/QFile> +#include <QtCore/QLoggingCategory> + +#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0]) + +QT_BEGIN_NAMESPACE + +Q_LOGGING_CATEGORY(qLcKmsDebug, "qt.qpa.eglfs.kms") + +enum OutputConfiguration { + OutputConfigOff, + OutputConfigPreferred, + OutputConfigCurrent, + OutputConfigMode, + OutputConfigModeline +}; + +int QKmsDevice::crtcForConnector(drmModeResPtr resources, drmModeConnectorPtr connector) +{ + for (int i = 0; i < connector->count_encoders; i++) { + drmModeEncoderPtr encoder = drmModeGetEncoder(m_dri_fd, connector->encoders[i]); + if (!encoder) { + qWarning("Failed to get encoder"); + continue; + } + + quint32 possibleCrtcs = encoder->possible_crtcs; + drmModeFreeEncoder(encoder); + + for (int j = 0; j < resources->count_crtcs; j++) { + bool isPossible = possibleCrtcs & (1 << j); + bool isAvailable = !(m_crtc_allocator & 1 << resources->crtcs[j]); + + if (isPossible && isAvailable) + return j; + } + } + + return -1; +} + +static const char * const connector_type_names[] = { // must match DRM_MODE_CONNECTOR_* + "None", + "VGA", + "DVI", + "DVI", + "DVI", + "Composite", + "TV", + "LVDS", + "CTV", + "DIN", + "DP", + "HDMI", + "HDMI", + "TV", + "eDP", + "Virtual", + "DSI" +}; + +static QByteArray nameForConnector(const drmModeConnectorPtr connector) +{ + QByteArray connectorName("UNKNOWN"); + + if (connector->connector_type < ARRAY_LENGTH(connector_type_names)) + connectorName = connector_type_names[connector->connector_type]; + + connectorName += QByteArray::number(connector->connector_type_id); + + return connectorName; +} + +static bool parseModeline(const QByteArray &text, drmModeModeInfoPtr mode) +{ + char hsync[16]; + char vsync[16]; + float fclock; + + mode->type = DRM_MODE_TYPE_USERDEF; + mode->hskew = 0; + mode->vscan = 0; + mode->vrefresh = 0; + mode->flags = 0; + + if (sscanf(text.constData(), "%f %hd %hd %hd %hd %hd %hd %hd %hd %15s %15s", + &fclock, + &mode->hdisplay, + &mode->hsync_start, + &mode->hsync_end, + &mode->htotal, + &mode->vdisplay, + &mode->vsync_start, + &mode->vsync_end, + &mode->vtotal, hsync, vsync) != 11) + return false; + + mode->clock = fclock * 1000; + + if (strcmp(hsync, "+hsync") == 0) + mode->flags |= DRM_MODE_FLAG_PHSYNC; + else if (strcmp(hsync, "-hsync") == 0) + mode->flags |= DRM_MODE_FLAG_NHSYNC; + else + return false; + + if (strcmp(vsync, "+vsync") == 0) + mode->flags |= DRM_MODE_FLAG_PVSYNC; + else if (strcmp(vsync, "-vsync") == 0) + mode->flags |= DRM_MODE_FLAG_NVSYNC; + else + return false; + + return true; +} + +QPlatformScreen *QKmsDevice::createScreenForConnector(drmModeResPtr resources, + drmModeConnectorPtr connector, + VirtualDesktopInfo *vinfo) +{ + const QByteArray connectorName = nameForConnector(connector); + + const int crtc = crtcForConnector(resources, connector); + if (crtc < 0) { + qWarning() << "No usable crtc/encoder pair for connector" << connectorName; + return Q_NULLPTR; + } + + OutputConfiguration configuration; + QSize configurationSize; + drmModeModeInfo configurationModeline; + + auto userConfig = m_screenConfig->outputSettings(); + auto userConnectorConfig = userConfig.value(QString::fromUtf8(connectorName)); + // default to the preferred mode unless overridden in the config + const QByteArray mode = userConnectorConfig.value(QStringLiteral("mode"), QStringLiteral("preferred")) + .toByteArray().toLower(); + if (mode == "off") { + configuration = OutputConfigOff; + } else if (mode == "preferred") { + configuration = OutputConfigPreferred; + } else if (mode == "current") { + configuration = OutputConfigCurrent; + } else if (sscanf(mode.constData(), "%dx%d", &configurationSize.rwidth(), &configurationSize.rheight()) == 2) { + configuration = OutputConfigMode; + } else if (parseModeline(mode, &configurationModeline)) { + configuration = OutputConfigModeline; + } else { + qWarning("Invalid mode \"%s\" for output %s", mode.constData(), connectorName.constData()); + configuration = OutputConfigPreferred; + } + if (vinfo) { + *vinfo = VirtualDesktopInfo(); + vinfo->virtualIndex = userConnectorConfig.value(QStringLiteral("virtualIndex"), INT_MAX).toInt(); + if (userConnectorConfig.contains(QStringLiteral("virtualPos"))) { + const QByteArray vpos = userConnectorConfig.value(QStringLiteral("virtualPos")).toByteArray(); + const QByteArrayList vposComp = vpos.split(','); + if (vposComp.count() == 2) + vinfo->virtualPos = QPoint(vposComp[0].trimmed().toInt(), vposComp[1].trimmed().toInt()); + } + if (userConnectorConfig.value(QStringLiteral("primary")).toBool()) + vinfo->isPrimary = true; + } + + const uint32_t crtc_id = resources->crtcs[crtc]; + + if (configuration == OutputConfigOff) { + qCDebug(qLcKmsDebug) << "Turning off output" << connectorName; + drmModeSetCrtc(m_dri_fd, crtc_id, 0, 0, 0, 0, 0, Q_NULLPTR); + return Q_NULLPTR; + } + + // Skip disconnected output + if (configuration == OutputConfigPreferred && connector->connection == DRM_MODE_DISCONNECTED) { + qCDebug(qLcKmsDebug) << "Skipping disconnected output" << connectorName; + return Q_NULLPTR; + } + + // Get the current mode on the current crtc + drmModeModeInfo crtc_mode; + memset(&crtc_mode, 0, sizeof crtc_mode); + if (drmModeEncoderPtr encoder = drmModeGetEncoder(m_dri_fd, connector->connector_id)) { + drmModeCrtcPtr crtc = drmModeGetCrtc(m_dri_fd, encoder->crtc_id); + drmModeFreeEncoder(encoder); + + if (!crtc) + return Q_NULLPTR; + + if (crtc->mode_valid) + crtc_mode = crtc->mode; + + drmModeFreeCrtc(crtc); + } + + QList<drmModeModeInfo> modes; + modes.reserve(connector->count_modes); + qCDebug(qLcKmsDebug) << connectorName << "mode count:" << connector->count_modes; + for (int i = 0; i < connector->count_modes; i++) { + const drmModeModeInfo &mode = connector->modes[i]; + qCDebug(qLcKmsDebug) << "mode" << i << mode.hdisplay << "x" << mode.vdisplay + << '@' << mode.vrefresh << "hz"; + modes << connector->modes[i]; + } + + int preferred = -1; + int current = -1; + int configured = -1; + int best = -1; + + for (int i = modes.size() - 1; i >= 0; i--) { + const drmModeModeInfo &m = modes.at(i); + + if (configuration == OutputConfigMode && + m.hdisplay == configurationSize.width() && + m.vdisplay == configurationSize.height()) { + configured = i; + } + + if (!memcmp(&crtc_mode, &m, sizeof m)) + current = i; + + if (m.type & DRM_MODE_TYPE_PREFERRED) + preferred = i; + + best = i; + } + + if (configuration == OutputConfigModeline) { + modes << configurationModeline; + configured = modes.size() - 1; + } + + if (current < 0 && crtc_mode.clock != 0) { + modes << crtc_mode; + current = mode.size() - 1; + } + + if (configuration == OutputConfigCurrent) + configured = current; + + int selected_mode = -1; + + if (configured >= 0) + selected_mode = configured; + else if (preferred >= 0) + selected_mode = preferred; + else if (current >= 0) + selected_mode = current; + else if (best >= 0) + selected_mode = best; + + if (selected_mode < 0) { + qWarning() << "No modes available for output" << connectorName; + return Q_NULLPTR; + } else { + int width = modes[selected_mode].hdisplay; + int height = modes[selected_mode].vdisplay; + int refresh = modes[selected_mode].vrefresh; + qCDebug(qLcKmsDebug) << "Selected mode" << selected_mode << ":" << width << "x" << height + << '@' << refresh << "hz for output" << connectorName; + } + + // physical size from connector < config values < env vars + int pwidth = qEnvironmentVariableIntValue("QT_QPA_EGLFS_PHYSICAL_WIDTH"); + if (!pwidth) + pwidth = qEnvironmentVariableIntValue("QT_QPA_PHYSICAL_WIDTH"); + int pheight = qEnvironmentVariableIntValue("QT_QPA_EGLFS_PHYSICAL_HEIGHT"); + if (!pheight) + pheight = qEnvironmentVariableIntValue("QT_QPA_PHYSICAL_HEIGHT"); + QSizeF physSize(pwidth, pheight); + if (physSize.isEmpty()) { + physSize = QSize(userConnectorConfig.value(QStringLiteral("physicalWidth")).toInt(), + userConnectorConfig.value(QStringLiteral("physicalHeight")).toInt()); + if (physSize.isEmpty()) { + physSize.setWidth(connector->mmWidth); + physSize.setHeight(connector->mmHeight); + } + } + qCDebug(qLcKmsDebug) << "Physical size is" << physSize << "mm" << "for output" << connectorName; + + QKmsOutput output = { + QString::fromUtf8(connectorName), + connector->connector_id, + crtc_id, + physSize, + selected_mode, + false, + drmModeGetCrtc(m_dri_fd, crtc_id), + modes, + connector->subpixel, + connectorProperty(connector, QByteArrayLiteral("DPMS")), + false, + 0, + false + }; + + bool ok; + int idx = qEnvironmentVariableIntValue("QT_QPA_EGLFS_KMS_PLANE_INDEX", &ok); + if (ok) { + drmModePlaneRes *planeResources = drmModeGetPlaneResources(m_dri_fd); + if (planeResources) { + if (idx >= 0 && idx < int(planeResources->count_planes)) { + drmModePlane *plane = drmModeGetPlane(m_dri_fd, planeResources->planes[idx]); + if (plane) { + output.wants_plane = true; + output.plane_id = plane->plane_id; + qCDebug(qLcKmsDebug, "Forcing plane index %d, plane id %u (belongs to crtc id %u)", + idx, plane->plane_id, plane->crtc_id); + drmModeFreePlane(plane); + } + } else { + qWarning("Invalid plane index %d, must be between 0 and %u", idx, planeResources->count_planes - 1); + } + } + } + + m_crtc_allocator |= (1 << output.crtc_id); + m_connector_allocator |= (1 << output.connector_id); + + return createScreen(output); +} + +drmModePropertyPtr QKmsDevice::connectorProperty(drmModeConnectorPtr connector, const QByteArray &name) +{ + drmModePropertyPtr prop; + + for (int i = 0; i < connector->count_props; i++) { + prop = drmModeGetProperty(m_dri_fd, connector->props[i]); + if (!prop) + continue; + if (strcmp(prop->name, name.constData()) == 0) + return prop; + drmModeFreeProperty(prop); + } + + return Q_NULLPTR; +} + +QKmsDevice::QKmsDevice(QKmsScreenConfig *screenConfig, const QString &path) + : m_screenConfig(screenConfig) + , m_path(path) + , m_dri_fd(-1) + , m_crtc_allocator(0) + , m_connector_allocator(0) +{ + if (m_path.isEmpty()) { + m_path = m_screenConfig->devicePath(); + qCDebug(qLcKmsDebug, "Using DRM device %s specified in config file", qPrintable(m_path)); + if (m_path.isEmpty()) + qFatal("No DRM device given"); + } else { + qCDebug(qLcKmsDebug, "Using backend-provided DRM device %s", qPrintable(m_path)); + } +} + +QKmsDevice::~QKmsDevice() +{ +} + +struct OrderedScreen +{ + OrderedScreen() : screen(nullptr) { } + OrderedScreen(QPlatformScreen *screen, const QKmsDevice::VirtualDesktopInfo &vinfo) + : screen(screen), vinfo(vinfo) { } + QPlatformScreen *screen; + QKmsDevice::VirtualDesktopInfo vinfo; +}; + +QDebug operator<<(QDebug dbg, const OrderedScreen &s) +{ + QDebugStateSaver saver(dbg); + dbg.nospace() << "OrderedScreen(QPlatformScreen=" << s.screen << " (" << s.screen->name() << ") : " + << s.vinfo.virtualIndex + << " / " << s.vinfo.virtualPos + << " / primary: " << s.vinfo.isPrimary + << ")"; + return dbg; +} + +static bool orderedScreenLessThan(const OrderedScreen &a, const OrderedScreen &b) +{ + return a.vinfo.virtualIndex < b.vinfo.virtualIndex; +} + +void QKmsDevice::createScreens() +{ + drmModeResPtr resources = drmModeGetResources(m_dri_fd); + if (!resources) { + qWarning("drmModeGetResources failed"); + return; + } + + QVector<OrderedScreen> screens; + + int wantedConnectorIndex = -1; + bool ok; + int idx = qEnvironmentVariableIntValue("QT_QPA_EGLFS_KMS_CONNECTOR_INDEX", &ok); + if (ok) { + if (idx >= 0 && idx < resources->count_connectors) + wantedConnectorIndex = idx; + else + qWarning("Invalid connector index %d, must be between 0 and %u", idx, resources->count_connectors - 1); + } + + for (int i = 0; i < resources->count_connectors; i++) { + if (wantedConnectorIndex >= 0 && i != wantedConnectorIndex) + continue; + + drmModeConnectorPtr connector = drmModeGetConnector(m_dri_fd, resources->connectors[i]); + if (!connector) + continue; + + VirtualDesktopInfo vinfo; + QPlatformScreen *screen = createScreenForConnector(resources, connector, &vinfo); + if (screen) + screens.append(OrderedScreen(screen, vinfo)); + + drmModeFreeConnector(connector); + } + + drmModeFreeResources(resources); + + // Use stable sort to preserve the original (DRM connector) order + // for outputs with unspecified indices. + std::stable_sort(screens.begin(), screens.end(), orderedScreenLessThan); + qCDebug(qLcKmsDebug) << "Sorted screen list:" << screens; + + QPoint pos(0, 0); + QList<QPlatformScreen *> siblings; + QVector<QPoint> virtualPositions; + int primarySiblingIdx = -1; + + for (const OrderedScreen &orderedScreen : screens) { + QPlatformScreen *s = orderedScreen.screen; + QPoint virtualPos(0, 0); + // set up a horizontal or vertical virtual desktop + if (orderedScreen.vinfo.virtualPos.isNull()) { + virtualPos = pos; + if (m_screenConfig->virtualDesktopLayout() == QKmsScreenConfig::VirtualDesktopLayoutVertical) + pos.ry() += s->geometry().height(); + else + pos.rx() += s->geometry().width(); + } else { + virtualPos = orderedScreen.vinfo.virtualPos; + } + qCDebug(qLcKmsDebug) << "Adding QPlatformScren" << s << "(" << s->name() << ")" + << "to QPA with geometry" << s->geometry() + << "and isPrimary=" << orderedScreen.vinfo.isPrimary; + // The order in qguiapp's screens list will match the order set by + // virtualIndex. This is not only handy but also required since for instance + // evdevtouch relies on it when performing touch device - screen mapping. + if (!m_screenConfig->separateScreens()) { + siblings.append(s); + virtualPositions.append(virtualPos); + if (orderedScreen.vinfo.isPrimary) + primarySiblingIdx = siblings.count() - 1; + } else { + registerScreen(s, orderedScreen.vinfo.isPrimary, virtualPos, QList<QPlatformScreen *>() << s); + } + } + + if (!m_screenConfig->separateScreens()) { + // enable the virtual desktop + for (int i = 0; i < siblings.count(); ++i) + registerScreen(siblings[i], i == primarySiblingIdx, virtualPositions[i], siblings); + } +} + +int QKmsDevice::fd() const +{ + return m_dri_fd; +} + +QString QKmsDevice::devicePath() const +{ + return m_path; +} + +void QKmsDevice::setFd(int fd) +{ + m_dri_fd = fd; +} + +QKmsScreenConfig *QKmsDevice::screenConfig() const +{ + return m_screenConfig; +} + +QKmsScreenConfig::QKmsScreenConfig() + : m_hwCursor(true) + , m_separateScreens(false) + , m_pbuffers(false) + , m_virtualDesktopLayout(VirtualDesktopLayoutHorizontal) +{ + loadConfig(); +} + +void QKmsScreenConfig::loadConfig() +{ + QByteArray json = qgetenv("QT_QPA_EGLFS_KMS_CONFIG"); + if (json.isEmpty()) { + json = qgetenv("QT_QPA_KMS_CONFIG"); + if (json.isEmpty()) + return; + } + + qCDebug(qLcKmsDebug) << "Loading KMS setup from" << json; + + QFile file(QString::fromUtf8(json)); + if (!file.open(QFile::ReadOnly)) { + qCWarning(qLcKmsDebug) << "Could not open config file" + << json << "for reading"; + return; + } + + const QJsonDocument doc = QJsonDocument::fromJson(file.readAll()); + if (!doc.isObject()) { + qCWarning(qLcKmsDebug) << "Invalid config file" << json + << "- no top-level JSON object"; + return; + } + + const QJsonObject object = doc.object(); + + m_hwCursor = object.value(QLatin1String("hwcursor")).toBool(m_hwCursor); + m_pbuffers = object.value(QLatin1String("pbuffers")).toBool(m_pbuffers); + m_devicePath = object.value(QLatin1String("device")).toString(); + m_separateScreens = object.value(QLatin1String("separateScreens")).toBool(m_separateScreens); + + const QString vdOriString = object.value(QLatin1String("virtualDesktopLayout")).toString(); + if (!vdOriString.isEmpty()) { + if (vdOriString == QLatin1String("horizontal")) + m_virtualDesktopLayout = VirtualDesktopLayoutHorizontal; + else if (vdOriString == QLatin1String("vertical")) + m_virtualDesktopLayout = VirtualDesktopLayoutVertical; + else + qCWarning(qLcKmsDebug) << "Unknown virtualDesktopOrientation value" << vdOriString; + } + + const QJsonArray outputs = object.value(QLatin1String("outputs")).toArray(); + for (int i = 0; i < outputs.size(); i++) { + const QVariantMap outputSettings = outputs.at(i).toObject().toVariantMap(); + + if (outputSettings.contains(QStringLiteral("name"))) { + const QString name = outputSettings.value(QStringLiteral("name")).toString(); + + if (m_outputSettings.contains(name)) { + qCDebug(qLcKmsDebug) << "Output" << name << "configured multiple times!"; + } + + m_outputSettings.insert(name, outputSettings); + } + } + + qCDebug(qLcKmsDebug) << "Requested configuration (some settings may be ignored):\n" + << "\thwcursor:" << m_hwCursor << "\n" + << "\tpbuffers:" << m_pbuffers << "\n" + << "\tseparateScreens:" << m_separateScreens << "\n" + << "\tvirtualDesktopLayout:" << m_virtualDesktopLayout << "\n" + << "\toutputs:" << m_outputSettings; +} + +void QKmsOutput::restoreMode(QKmsDevice *device) +{ + if (mode_set && saved_crtc) { + drmModeSetCrtc(device->fd(), + saved_crtc->crtc_id, + saved_crtc->buffer_id, + 0, 0, + &connector_id, 1, + &saved_crtc->mode); + mode_set = false; + } +} + +void QKmsOutput::cleanup(QKmsDevice *device) +{ + if (dpms_prop) { + drmModeFreeProperty(dpms_prop); + dpms_prop = nullptr; + } + + restoreMode(device); + + if (saved_crtc) { + drmModeFreeCrtc(saved_crtc); + saved_crtc = nullptr; + } +} + +QPlatformScreen::SubpixelAntialiasingType QKmsOutput::subpixelAntialiasingTypeHint() const +{ + switch (subpixel) { + default: + case DRM_MODE_SUBPIXEL_UNKNOWN: + case DRM_MODE_SUBPIXEL_NONE: + return QPlatformScreen::Subpixel_None; + case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB: + return QPlatformScreen::Subpixel_RGB; + case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR: + return QPlatformScreen::Subpixel_BGR; + case DRM_MODE_SUBPIXEL_VERTICAL_RGB: + return QPlatformScreen::Subpixel_VRGB; + case DRM_MODE_SUBPIXEL_VERTICAL_BGR: + return QPlatformScreen::Subpixel_VBGR; + } +} + +void QKmsOutput::setPowerState(QKmsDevice *device, QPlatformScreen::PowerState state) +{ + if (dpms_prop) + drmModeConnectorSetProperty(device->fd(), connector_id, + dpms_prop->prop_id, (int) state); +} + +QT_END_NAMESPACE diff --git a/src/platformsupport/kmsconvenience/qkmsdevice_p.h b/src/platformsupport/kmsconvenience/qkmsdevice_p.h new file mode 100644 index 0000000000..35a51c18b1 --- /dev/null +++ b/src/platformsupport/kmsconvenience/qkmsdevice_p.h @@ -0,0 +1,170 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2016 Pelagicore AG +** Copyright (C) 2015 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com> +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QKMSDEVICE_P_H +#define QKMSDEVICE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <qpa/qplatformscreen.h> +#include <QtCore/QMap> +#include <QtCore/QVariant> + +#include <xf86drm.h> +#include <xf86drmMode.h> + +QT_BEGIN_NAMESPACE + +class QKmsDevice; + +class QKmsScreenConfig +{ +public: + enum VirtualDesktopLayout { + VirtualDesktopLayoutHorizontal, + VirtualDesktopLayoutVertical + }; + + QKmsScreenConfig(); + + QString devicePath() const { return m_devicePath; } + + bool hwCursor() const { return m_hwCursor; } + bool separateScreens() const { return m_separateScreens; } + bool supportsPBuffers() const { return m_pbuffers; } + VirtualDesktopLayout virtualDesktopLayout() const { return m_virtualDesktopLayout; } + + QMap<QString, QVariantMap> outputSettings() const { return m_outputSettings; } + +private: + void loadConfig(); + + QString m_devicePath; + bool m_hwCursor; + bool m_separateScreens; + bool m_pbuffers; + VirtualDesktopLayout m_virtualDesktopLayout; + QMap<QString, QVariantMap> m_outputSettings; +}; + +struct QKmsOutput +{ + QString name; + uint32_t connector_id; + uint32_t crtc_id; + QSizeF physical_size; + int mode; // index of selected mode in list below + bool mode_set; + drmModeCrtcPtr saved_crtc; + QList<drmModeModeInfo> modes; + int subpixel; + drmModePropertyPtr dpms_prop; + bool wants_plane; + uint32_t plane_id; + bool plane_set; + + void restoreMode(QKmsDevice *device); + void cleanup(QKmsDevice *device); + QPlatformScreen::SubpixelAntialiasingType subpixelAntialiasingTypeHint() const; + void setPowerState(QKmsDevice *device, QPlatformScreen::PowerState state); +}; + +class QKmsDevice +{ +public: + struct VirtualDesktopInfo { + VirtualDesktopInfo() : virtualIndex(0), isPrimary(false) { } + int virtualIndex; + QPoint virtualPos; + bool isPrimary; + }; + + QKmsDevice(QKmsScreenConfig *screenConfig, const QString &path = QString()); + virtual ~QKmsDevice(); + + virtual bool open() = 0; + virtual void close() = 0; + virtual void *nativeDisplay() const = 0; + + void createScreens(); + + int fd() const; + QString devicePath() const; + + QKmsScreenConfig *screenConfig() const; + +protected: + virtual QPlatformScreen *createScreen(const QKmsOutput &output) = 0; + virtual void registerScreen(QPlatformScreen *screen, + bool isPrimary, + const QPoint &virtualPos, + const QList<QPlatformScreen *> &virtualSiblings) = 0; + + void setFd(int fd); + int crtcForConnector(drmModeResPtr resources, drmModeConnectorPtr connector); + QPlatformScreen *createScreenForConnector(drmModeResPtr resources, + drmModeConnectorPtr connector, + VirtualDesktopInfo *vinfo); + drmModePropertyPtr connectorProperty(drmModeConnectorPtr connector, const QByteArray &name); + + QKmsScreenConfig *m_screenConfig; + QString m_path; + int m_dri_fd; + + quint32 m_crtc_allocator; + quint32 m_connector_allocator; + +private: + Q_DISABLE_COPY(QKmsDevice) +}; + +QT_END_NAMESPACE + +#endif |