Multi-screen handling for the eglfs_kms_egldevice backend

Separates the generic kms classes into a own kms static lib
called QtEglFsKmsSupport. The eglfs_kms plugin was changed
to use these base classes and got renamed accordingly to
QEglFSKmsGbm*.

The eglfs_kms_egldevice plugin got extended to also derive
from the kms base classed and by this provides multi-screen
support

Change-Id: I6de6a754e94cb8d52cf8e658b03c6bd6637674a1
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

1 files changed, 0 insertions, 359 deletions

diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsscreen.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsscreen.cpp
deleted file mode 100644
index f53c3e9132..0000000000
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsscreen.cpp
+++ /dev/null
@@ -1,359 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
-** Copyright (C) 2016 The Qt Company Ltd.
-** 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 "qeglfskmsscreen.h"
-#include "qeglfskmsdevice.h"
-#include "qeglfskmscursor.h"
-#include "qeglfsintegration.h"
-
-#include <QtCore/QLoggingCategory>
-
-#include <QtGui/private/qguiapplication_p.h>
-#include <QtPlatformSupport/private/qfbvthandler_p.h>
-
-QT_BEGIN_NAMESPACE
-
-Q_DECLARE_LOGGING_CATEGORY(qLcEglfsKmsDebug)
-
-class QEglFSKmsInterruptHandler : public QObject
-{
-public:
-    QEglFSKmsInterruptHandler(QEglFSKmsScreen *screen) : m_screen(screen) {
-        m_vtHandler = static_cast<QEglFSIntegration *>(QGuiApplicationPrivate::platformIntegration())->vtHandler();
-        connect(m_vtHandler, &QFbVtHandler::interrupted, this, &QEglFSKmsInterruptHandler::restoreVideoMode);
-        connect(m_vtHandler, &QFbVtHandler::aboutToSuspend, this, &QEglFSKmsInterruptHandler::restoreVideoMode);
-    }
-
-public slots:
-    void restoreVideoMode() { m_screen->restoreMode(); }
-
-private:
-    QFbVtHandler *m_vtHandler;
-    QEglFSKmsScreen *m_screen;
-};
-
-void QEglFSKmsScreen::bufferDestroyedHandler(gbm_bo *bo, void *data)
-{
-    FrameBuffer *fb = static_cast<FrameBuffer *>(data);
-
-    if (fb->fb) {
-        gbm_device *device = gbm_bo_get_device(bo);
-        drmModeRmFB(gbm_device_get_fd(device), fb->fb);
-    }
-
-    delete fb;
-}
-
-QEglFSKmsScreen::FrameBuffer *QEglFSKmsScreen::framebufferForBufferObject(gbm_bo *bo)
-{
-    {
-        FrameBuffer *fb = static_cast<FrameBuffer *>(gbm_bo_get_user_data(bo));
-        if (fb)
-            return fb;
-    }
-
-    uint32_t width = gbm_bo_get_width(bo);
-    uint32_t height = gbm_bo_get_height(bo);
-    uint32_t stride = gbm_bo_get_stride(bo);
-    uint32_t handle = gbm_bo_get_handle(bo).u32;
-
-    QScopedPointer<FrameBuffer> fb(new FrameBuffer);
-
-    int ret = drmModeAddFB(m_device->fd(), width, height, 24, 32,
-                           stride, handle, &fb->fb);
-
-    if (ret) {
-        qWarning("Failed to create KMS FB!");
-        return Q_NULLPTR;
-    }
-
-    gbm_bo_set_user_data(bo, fb.data(), bufferDestroyedHandler);
-    return fb.take();
-}
-
-QEglFSKmsScreen::QEglFSKmsScreen(QEglFSKmsIntegration *integration,
-                                 QEglFSKmsDevice *device,
-                                 QEglFSKmsOutput output,
-                                 QPoint position)
-    : QEglFSScreen(eglGetDisplay(reinterpret_cast<EGLNativeDisplayType>(device->device())))
-    , m_integration(integration)
-    , m_device(device)
-    , m_gbm_surface(Q_NULLPTR)
-    , m_gbm_bo_current(Q_NULLPTR)
-    , m_gbm_bo_next(Q_NULLPTR)
-    , m_output(output)
-    , m_pos(position)
-    , m_cursor(Q_NULLPTR)
-    , m_powerState(PowerStateOn)
-    , m_interruptHandler(new QEglFSKmsInterruptHandler(this))
-{
-    m_siblings << this;
-}
-
-QEglFSKmsScreen::~QEglFSKmsScreen()
-{
-    if (m_output.dpms_prop) {
-        drmModeFreeProperty(m_output.dpms_prop);
-        m_output.dpms_prop = Q_NULLPTR;
-    }
-    restoreMode();
-    if (m_output.saved_crtc) {
-        drmModeFreeCrtc(m_output.saved_crtc);
-        m_output.saved_crtc = Q_NULLPTR;
-    }
-    delete m_interruptHandler;
-}
-
-QRect QEglFSKmsScreen::geometry() const
-{
-    const int mode = m_output.mode;
-    return QRect(m_pos.x(), m_pos.y(),
-                 m_output.modes[mode].hdisplay,
-                 m_output.modes[mode].vdisplay);
-}
-
-int QEglFSKmsScreen::depth() const
-{
-    return 32;
-}
-
-QImage::Format QEglFSKmsScreen::format() const
-{
-    return QImage::Format_RGB32;
-}
-
-QSizeF QEglFSKmsScreen::physicalSize() const
-{
-    return m_output.physical_size;
-}
-
-QDpi QEglFSKmsScreen::logicalDpi() const
-{
-    const QSizeF ps = physicalSize();
-    const QSize s = geometry().size();
-
-    if (!ps.isEmpty() && !s.isEmpty())
-        return QDpi(25.4 * s.width() / ps.width(),
-                    25.4 * s.height() / ps.height());
-    else
-        return QDpi(100, 100);
-}
-
-Qt::ScreenOrientation QEglFSKmsScreen::nativeOrientation() const
-{
-    return Qt::PrimaryOrientation;
-}
-
-Qt::ScreenOrientation QEglFSKmsScreen::orientation() const
-{
-    return Qt::PrimaryOrientation;
-}
-
-QString QEglFSKmsScreen::name() const
-{
-    return m_output.name;
-}
-
-QPlatformCursor *QEglFSKmsScreen::cursor() const
-{
-    if (m_integration->hwCursor()) {
-        if (!m_integration->separateScreens())
-            return m_device->globalCursor();
-
-        if (m_cursor.isNull()) {
-            QEglFSKmsScreen *that = const_cast<QEglFSKmsScreen *>(this);
-            that->m_cursor.reset(new QEglFSKmsCursor(that));
-        }
-
-        return m_cursor.data();
-    } else {
-        return QEglFSScreen::cursor();
-    }
-}
-
-gbm_surface *QEglFSKmsScreen::createSurface()
-{
-    if (!m_gbm_surface) {
-        qCDebug(qLcEglfsKmsDebug) << "Creating window for screen" << name();
-        m_gbm_surface = gbm_surface_create(m_device->device(),
-                                           geometry().width(),
-                                           geometry().height(),
-                                           GBM_FORMAT_XRGB8888,
-                                           GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
-    }
-    return m_gbm_surface;
-}
-
-void QEglFSKmsScreen::destroySurface()
-{
-    if (m_gbm_bo_current) {
-        gbm_bo_destroy(m_gbm_bo_current);
-        m_gbm_bo_current = Q_NULLPTR;
-    }
-
-    if (m_gbm_bo_next) {
-        gbm_bo_destroy(m_gbm_bo_next);
-        m_gbm_bo_next = Q_NULLPTR;
-    }
-
-    if (m_gbm_surface) {
-        gbm_surface_destroy(m_gbm_surface);
-        m_gbm_surface = Q_NULLPTR;
-    }
-}
-
-void QEglFSKmsScreen::waitForFlip()
-{
-    // Don't lock the mutex unless we actually need to
-    if (!m_gbm_bo_next)
-        return;
-
-    QMutexLocker lock(&m_waitForFlipMutex);
-    while (m_gbm_bo_next)
-        m_device->handleDrmEvent();
-}
-
-void QEglFSKmsScreen::flip()
-{
-    if (!m_gbm_surface) {
-        qWarning("Cannot sync before platform init!");
-        return;
-    }
-
-    m_gbm_bo_next = gbm_surface_lock_front_buffer(m_gbm_surface);
-    if (!m_gbm_bo_next) {
-        qWarning("Could not lock GBM surface front buffer!");
-        return;
-    }
-
-    FrameBuffer *fb = framebufferForBufferObject(m_gbm_bo_next);
-
-    if (!m_output.mode_set) {
-        int ret = drmModeSetCrtc(m_device->fd(),
-                                 m_output.crtc_id,
-                                 fb->fb,
-                                 0, 0,
-                                 &m_output.connector_id, 1,
-                                 &m_output.modes[m_output.mode]);
-
-        if (ret) {
-            qErrnoWarning("Could not set DRM mode!");
-        } else {
-            m_output.mode_set = true;
-            setPowerState(PowerStateOn);
-        }
-    }
-
-    int ret = drmModePageFlip(m_device->fd(),
-                              m_output.crtc_id,
-                              fb->fb,
-                              DRM_MODE_PAGE_FLIP_EVENT,
-                              this);
-    if (ret) {
-        qErrnoWarning("Could not queue DRM page flip!");
-        gbm_surface_release_buffer(m_gbm_surface, m_gbm_bo_next);
-        m_gbm_bo_next = Q_NULLPTR;
-    }
-}
-
-void QEglFSKmsScreen::flipFinished()
-{
-    if (m_gbm_bo_current)
-        gbm_surface_release_buffer(m_gbm_surface,
-                                   m_gbm_bo_current);
-
-    m_gbm_bo_current = m_gbm_bo_next;
-    m_gbm_bo_next = Q_NULLPTR;
-}
-
-void QEglFSKmsScreen::restoreMode()
-{
-    if (m_output.mode_set && m_output.saved_crtc) {
-        drmModeSetCrtc(m_device->fd(),
-                       m_output.saved_crtc->crtc_id,
-                       m_output.saved_crtc->buffer_id,
-                       0, 0,
-                       &m_output.connector_id, 1,
-                       &m_output.saved_crtc->mode);
-
-        m_output.mode_set = false;
-    }
-}
-
-qreal QEglFSKmsScreen::refreshRate() const
-{
-    quint32 refresh = m_output.modes[m_output.mode].vrefresh;
-    return refresh > 0 ? refresh : 60;
-}
-
-QPlatformScreen::SubpixelAntialiasingType QEglFSKmsScreen::subpixelAntialiasingTypeHint() const
-{
-    switch (m_output.subpixel) {
-    default:
-    case DRM_MODE_SUBPIXEL_UNKNOWN:
-    case DRM_MODE_SUBPIXEL_NONE:
-        return Subpixel_None;
-    case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
-        return Subpixel_RGB;
-    case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
-        return Subpixel_BGR;
-    case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
-        return Subpixel_VRGB;
-    case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
-        return Subpixel_VBGR;
-    }
-}
-
-QPlatformScreen::PowerState QEglFSKmsScreen::powerState() const
-{
-    return m_powerState;
-}
-
-void QEglFSKmsScreen::setPowerState(QPlatformScreen::PowerState state)
-{
-    if (!m_output.dpms_prop)
-        return;
-
-    drmModeConnectorSetProperty(m_device->fd(), m_output.connector_id,
-                                m_output.dpms_prop->prop_id, (int)state);
-    m_powerState = state;
-}
-
-QT_END_NAMESPACE