eglfs: Add device integration for Qt Simulator for Embedded Linux

To support multiple displays in the emulator, it is necessary that an
additional EGLFS device integration be added to query information about
the available screens, and to help associate a window surface with a
screen.

Change-Id: I852c27bd66f5f32a92c4ff876838ac2f6fbde86a
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

1 files changed, 178 insertions, 0 deletions

diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_emu/qeglfsemulatorscreen.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_emu/qeglfsemulatorscreen.cpp
new file mode 100644
index 0000000000..4546088327
--- /dev/null
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_emu/qeglfsemulatorscreen.cpp
@@ -0,0 +1,178 @@
+/****************************************************************************
+**
+** 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 "qeglfsemulatorscreen.h"
+
+QT_BEGIN_NAMESPACE
+
+QEglFSEmulatorScreen::QEglFSEmulatorScreen(const QJsonObject &screenDescription)
+    : QEglFSScreen(eglGetDisplay(EGL_DEFAULT_DISPLAY))
+    , m_id(0)
+{
+    initFromJsonObject(screenDescription);
+}
+
+QRect QEglFSEmulatorScreen::geometry() const
+{
+    return m_geometry;
+}
+
+QRect QEglFSEmulatorScreen::rawGeometry() const
+{
+    return QRect(QPoint(0, 0), m_geometry.size());
+}
+
+int QEglFSEmulatorScreen::depth() const
+{
+    return m_depth;
+}
+
+QImage::Format QEglFSEmulatorScreen::format() const
+{
+    return m_format;
+}
+
+QSizeF QEglFSEmulatorScreen::physicalSize() const
+{
+    return m_physicalSize;
+}
+
+QDpi QEglFSEmulatorScreen::logicalDpi() const
+{
+    const QSizeF ps = m_physicalSize;
+    const QSize s = m_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);
+}
+
+qreal QEglFSEmulatorScreen::pixelDensity() const
+{
+    return m_pixelDensity;
+}
+
+qreal QEglFSEmulatorScreen::refreshRate() const
+{
+    return m_refreshRate;
+}
+
+Qt::ScreenOrientation QEglFSEmulatorScreen::nativeOrientation() const
+{
+    return m_nativeOrientation;
+}
+
+Qt::ScreenOrientation QEglFSEmulatorScreen::orientation() const
+{
+    return m_orientation;
+}
+
+uint QEglFSEmulatorScreen::id() const
+{
+    return m_id;
+}
+
+void QEglFSEmulatorScreen::initFromJsonObject(const QJsonObject &description)
+{
+    QJsonValue value;
+
+    value = description.value(QLatin1String("id"));
+    if (!value.isUndefined() && value.isDouble())
+        m_id = value.toInt();
+
+    value = description.value(QLatin1String("description"));
+    if (!value.isUndefined() && value.isString())
+        m_description = value.toString();
+
+    value = description.value(QLatin1String("geometry"));
+    if (!value.isUndefined() && value.isObject()) {
+        QJsonObject geometryObject = value.toObject();
+        value = geometryObject.value(QLatin1String("x"));
+        if (!value.isUndefined() && value.isDouble())
+            m_geometry.setX(value.toInt());
+        value = geometryObject.value(QLatin1String("y"));
+        if (!value.isUndefined() && value.isDouble())
+            m_geometry.setY(value.toInt());
+        value = geometryObject.value(QLatin1String("width"));
+        if (!value.isUndefined() && value.isDouble())
+            m_geometry.setWidth(value.toInt());
+        value = geometryObject.value(QLatin1String("height"));
+        if (!value.isUndefined() && value.isDouble())
+            m_geometry.setHeight(value.toInt());
+    }
+
+    value = description.value(QLatin1String("depth"));
+    if (!value.isUndefined() && value.isDouble())
+        m_depth = value.toInt();
+
+    value = description.value(QLatin1String("format"));
+    if (!value.isUndefined() && value.isDouble())
+        m_format = static_cast<QImage::Format>(value.toInt());
+
+    value = description.value(QLatin1String("physicalSize"));
+    if (!value.isUndefined() && value.isObject()) {
+        QJsonObject physicalSizeObject = value.toObject();
+        value = physicalSizeObject.value(QLatin1String("width"));
+        if (!value.isUndefined() && value.isDouble())
+            m_physicalSize.setWidth(value.toInt());
+        value = physicalSizeObject.value(QLatin1String("height"));
+        if (!value.isUndefined() && value.isDouble())
+            m_physicalSize.setHeight(value.toInt());
+    }
+
+    value = description.value(QLatin1String("pixelDensity"));
+    if (!value.isUndefined() && value.isDouble())
+        m_pixelDensity = value.toDouble();
+
+    value = description.value(QLatin1String("refreshRate"));
+    if (!value.isUndefined() && value.isDouble())
+        m_refreshRate = value.toDouble();
+
+    value = description.value(QLatin1String("nativeOrientation"));
+    if (!value.isUndefined() && value.isDouble())
+        m_nativeOrientation = static_cast<Qt::ScreenOrientation>(value.toInt());
+
+    value = description.value(QLatin1String("orientation"));
+    if (!value.isUndefined() && value.isDouble())
+        m_orientation = static_cast<Qt::ScreenOrientation>(value.toInt());
+}
+
+QT_END_NAMESPACE