1 files changed, 134 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_emu/qeglfsemulatorintegration.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_emu/qeglfsemulatorintegration.cpp
new file mode 100644
index 0000000000..8a059ba973
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+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_emu/qeglfsemulatorintegration.cpp
@@ -0,0 +1,134 @@
+/****************************************************************************
+**
+** 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 "qeglfsemulatorintegration.h"
+#include "qeglfsemulatorscreen.h"
+#include "private/qeglfsintegration_p.h"
+
+#include <private/qguiapplication_p.h>
+#include <QtEglSupport/private/qeglconvenience_p.h>
+#include <QtEglSupport/private/qeglplatformcontext_p.h>
+
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonArray>
+#include <QtCore/QJsonParseError>
+
+QT_BEGIN_NAMESPACE
+
+QEglFSEmulatorIntegration::QEglFSEmulatorIntegration()
+{
+    // The Qt Emulator provides the ability to render to multiple displays
+    // In addition to the usual EGL and OpenGLESv2 API's, there are also a
+    // few additional API's that enable the client (this plugin) to query
+    // the available screens and their properties, as well as the ability
+    // to select which screen is the active render target (as this is
+    // usually handled in a platform specific way and not by EGL itself).
+
+    getDisplays = reinterpret_cast<PFNQGSGETDISPLAYSPROC>(eglGetProcAddress("qgsGetDisplays"));
+    setDisplay = reinterpret_cast<PFNQGSSETDISPLAYPROC>(eglGetProcAddress("qgsSetDisplay"));
+}
+
+void QEglFSEmulatorIntegration::platformInit()
+{
+}
+
+void QEglFSEmulatorIntegration::platformDestroy()
+{
+}
+
+bool QEglFSEmulatorIntegration::usesDefaultScreen()
+{
+    // This makes it possible to remotely query and then register our own set of screens
+    return false;
+}
+
+void QEglFSEmulatorIntegration::screenInit()
+{
+    QEglFSIntegration *integration = static_cast<QEglFSIntegration *>(QGuiApplicationPrivate::platformIntegration());
+
+    // Use qgsGetDisplays() call to retrieve the available screens from the Emulator
+    if (getDisplays) {
+        QByteArray displaysInfo = getDisplays();
+        QJsonParseError error;
+        QJsonDocument displaysDocument = QJsonDocument::fromJson(displaysInfo, &error);
+        if (error.error == QJsonParseError::NoError) {
+            // Document should be an array of screen objects
+            if (displaysDocument.isArray()){
+                QJsonArray screenArray = displaysDocument.array();
+                for (auto screenValue : screenArray) {
+                    if (screenValue.isObject())
+                        integration->addScreen(new QEglFSEmulatorScreen(screenValue.toObject()));
+                }
+            }
+        } else {
+            qWarning() << "eglfs_emu: Failed to parse display info JSON with error: " << error.errorString();
+        }
+    } else {
+        qFatal("EGL library doesn't support Emulator extensions");
+    }
+}
+
+bool QEglFSEmulatorIntegration::hasCapability(QPlatformIntegration::Capability cap) const
+{
+    switch (cap) {
+    case QPlatformIntegration::ThreadedPixmaps:
+    case QPlatformIntegration::OpenGL:
+    case QPlatformIntegration::ThreadedOpenGL:
+        return true;
+    default:
+        return false;
+    }
+}
+
+EGLNativeWindowType QEglFSEmulatorIntegration::createNativeWindow(QPlatformWindow *platformWindow,
+                                                                  const QSize &size,
+                                                                  const QSurfaceFormat &format)
+{
+    Q_UNUSED(size);
+    Q_UNUSED(format);
+    static QAtomicInt uniqueWindowId(1);
+    QEglFSEmulatorScreen *screen = static_cast<QEglFSEmulatorScreen *>(platformWindow->screen());
+    if (screen && setDisplay) {
+        // Let the emulator know which screen the window surface is attached to
+        setDisplay(screen->id());
+    }
+    return EGLNativeWindowType(qintptr(uniqueWindowId.fetchAndAddRelaxed(1)));
+}
+
+QT_END_NAMESPACE