Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 242 insertions, 0 deletions

diff --git a/src/opengl/qglscreen_qws.cpp b/src/opengl/qglscreen_qws.cpp
new file mode 100644
index 0000000000..badb581844
--- /dev/null
+++ b/src/opengl/qglscreen_qws.cpp
@@ -0,0 +1,242 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QGLScreen>
+#include <QGLContext>
+#include <QGLWidget>
+#include "private/qglwindowsurface_qws_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QGLScreenPrivate
+{
+public:
+    QGLScreen::Options options;
+    QGLScreenSurfaceFunctions *functions;
+};
+
+/*!
+  \internal
+  \preliminary
+  \class QGLScreen
+
+  \brief This class encapsulates an OpenGL screen driver.
+*/
+
+QGLScreen::QGLScreen(int displayId)
+    : QScreen(displayId, GLClass), d_ptr(new QGLScreenPrivate)
+{
+    d_ptr->options = NoOptions;
+    d_ptr->functions = new QGLScreenSurfaceFunctions();
+}
+
+QGLScreen::~QGLScreen()
+{
+    delete d_ptr->functions;
+    delete d_ptr;
+}
+
+/*!
+    \since 4.3
+    \obsolete
+
+    Initializes the \a context and sets up the QGLWindowSurface of the
+    QWidget of \a context based on the parameters of \a context and
+    based on its own requirements.  The format() of \a context needs
+    to be updated with the actual parameters of the OpenGLES drawable
+    that was set up.
+
+    \a shareContext is used in the same way as for QGLContext. It is
+    the context with which \a context shares display lists and texture
+    ids etc. The window surface must be set up so that this sharing
+    works.
+
+    Returns true in case of success and false if it is not possible to
+    create the necessary OpenGLES drawable/context.
+
+    Since 4.4.2, this function will be not be called if options()
+    indicates that a native window or pixmap drawable can be created
+    via the functions in the surfaceFunctions() object.
+
+    This function is obsolete in Qt 4.5 and higher.  Use surfaceFunctions()
+    instead.
+
+    \sa options(), surfaceFunctions()
+*/
+bool
+QGLScreen::chooseContext(QGLContext *context, const QGLContext *shareContext)
+{
+    Q_UNUSED(context);
+    Q_UNUSED(shareContext);
+    return false;
+}
+
+/*!
+    \enum QGLScreen::Option
+    This enum defines options that can be set on QGLScreen instances.
+
+    \value NoOptions There are no special options on the screen.  This is the default.
+    \value NativeWindows Native windows can be created with QGLScreenSurfaceFunctions::createNativeWindow().
+    \value NativePixmaps Native pixmaps can be created with QGLScreenSurfaceFunctions::createNativePixmap().
+    \value NativeImages Native images can be created with QGLScreenSurfaceFunctions::createNativeImage().
+    \value Overlays The screen supports GL overlays.
+*/
+
+/*!
+    \since 4.4.2
+
+    Returns the options associated with this QGLScreen.
+
+    \sa setOptions()
+*/
+QGLScreen::Options QGLScreen::options() const
+{
+    return d_ptr->options;
+}
+
+/*!
+    \since 4.4.2
+
+    Sets the options associated with this QGLScreen to \a value.
+
+    \sa options()
+*/
+void QGLScreen::setOptions(QGLScreen::Options value)
+{
+    d_ptr->options = value;
+}
+
+/*!
+    \since 4.4.2
+
+    Returns the surface functions object for this QGLScreen.
+
+    \sa setSurfaceFunctions()
+*/
+QGLScreenSurfaceFunctions *QGLScreen::surfaceFunctions() const
+{
+    return d_ptr->functions;
+}
+
+/*!
+    \since 4.4.2
+
+    Sets the surface functions object for this QGLScreen to \a functions.
+    The QGLScreen will take over ownership of \a functions and delete
+    it when the QGLScreen is deleted.
+
+    \sa setSurfaceFunctions()
+*/
+void QGLScreen::setSurfaceFunctions(QGLScreenSurfaceFunctions *functions)
+{
+    if (functions && functions != d_ptr->functions) {
+        delete d_ptr->functions;
+        d_ptr->functions = functions;
+    }
+}
+
+/*!
+    \internal
+    \preliminary
+    \class QGLScreenSurfaceFunctions
+    \brief The QGLScreenSurfaceFunctions class encapsulates the functions for creating native windows and pixmaps for OpenGL ES.
+*/
+
+/*!
+    \since 4.4.2
+
+    Creates a native OpenGLES drawable for the surface of \a widget and
+    returns it in \a native.  Returns true if the OpenGLES drawable could
+    be created, or false if windows are not supported.
+
+    This function will be called if the NativeWindows option is set on
+    the screen.
+
+    \sa createNativePixmap(), createNativeImage(), QGLScreen::options()
+*/
+bool QGLScreenSurfaceFunctions::createNativeWindow(QWidget *widget, EGLNativeWindowType *native)
+{
+    Q_UNUSED(widget);
+    Q_UNUSED(native);
+    return false;
+}
+
+/*!
+    \since 4.4.2
+
+    Creates a native OpenGLES drawable for directly rendering into
+    \a pixmap and returns it in \a native.  Returns true if the OpenGLES
+    drawable could be created, or false if direct rendering into pixmaps
+    is not supported.
+
+    This function will be called if the NativePixmaps option is set on
+    the screen.
+
+    \sa createNativeWindow(), createNativeImage(), QGLScreen::options()
+*/
+bool QGLScreenSurfaceFunctions::createNativePixmap(QPixmap *pixmap, EGLNativePixmapType *native)
+{
+    Q_UNUSED(pixmap);
+    Q_UNUSED(native);
+    return false;
+}
+
+/*!
+    \since 4.4.2
+
+    Creates a native OpenGLES drawable for directly rendering into
+    \a image and returns it in \a native.  Returns true if the OpenGLES
+    drawable could be created, or false if direct rendering into images
+    is not supported.
+
+    This function will be called if the NativeImages option is set on
+    the screen.
+
+    \sa createNativeWindow(), createNativePixmap(), QGLScreen::options()
+*/
+bool QGLScreenSurfaceFunctions::createNativeImage(QImage *image, EGLNativePixmapType *native)
+{
+    Q_UNUSED(image);
+    Q_UNUSED(native);
+    return false;
+}
+
+QT_END_NAMESPACE