1 files changed, 201 insertions, 0 deletions
diff --git a/src/gui/kernel/qwindowcontext_qpa.cpp b/src/gui/kernel/qwindowcontext_qpa.cpp
new file mode 100644
index 0000000000..f121e846b2
--- /dev/null
+++ b/src/gui/kernel/qwindowcontext_qpa.cpp
@@ -0,0 +1,201 @@
+/****************************************************************************
+**
+** 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 "qplatformglcontext_qpa.h"
+#include "qwindowcontext_qpa.h"
+#include "qwindow.h"
+
+#include <QtCore/QThreadStorage>
+#include <QtCore/QThread>
+
+#include <QDebug>
+
+class QWindowThreadContext
+{
+public:
+    ~QWindowThreadContext() {
+        if (context)
+            context->doneCurrent();
+    }
+    QWindowContext *context;
+};
+
+static QThreadStorage<QWindowThreadContext *> qwindow_context_storage;
+
+class QWindowContextPrivate
+{
+public:
+    QWindowContextPrivate()
+        :qGLContextHandle(0)
+    {
+    }
+
+    virtual ~QWindowContextPrivate()
+    {
+        //do not delete the QGLContext handle here as it is deleted in
+        //QWidgetPrivate::deleteTLSysExtra()
+    }
+    void *qGLContextHandle;
+    void (*qGLContextDeleteFunction)(void *handle);
+    QPlatformGLContext *platformGLContext;
+    static QWindowContext *staticSharedContext;
+
+    static void setCurrentContext(QWindowContext *context);
+};
+
+QWindowContext *QWindowContextPrivate::staticSharedContext = 0;
+
+void QWindowContextPrivate::setCurrentContext(QWindowContext *context)
+{
+    QWindowThreadContext *threadContext = qwindow_context_storage.localData();
+    if (!threadContext) {
+        if (!QThread::currentThread()) {
+            qWarning("No QTLS available. currentContext wont work");
+            return;
+        }
+        threadContext = new QWindowThreadContext;
+        qwindow_context_storage.setLocalData(threadContext);
+    }
+    threadContext->context = context;
+}
+
+/*!
+  Returns the last context which called makeCurrent. This function is thread aware.
+*/
+QWindowContext* QWindowContext::currentContext()
+{
+    QWindowThreadContext *threadContext = qwindow_context_storage.localData();
+    if(threadContext) {
+        return threadContext->context;
+    }
+    return 0;
+}
+
+QPlatformGLContext *QWindowContext::handle() const
+{
+    Q_D(const QWindowContext);
+    return d->platformGLContext;
+}
+
+/*!
+    All subclasses needs to specify the platformWindow. It can be a null window.
+*/
+QWindowContext::QWindowContext(QWindow *window)
+    :d_ptr(new QWindowContextPrivate())
+{
+    Q_D(QWindowContext);
+    Q_ASSERT(window);
+    if (!window->handle())
+        window->create();
+    d->platformGLContext = window->handle()->glContext();
+}
+
+/*!
+  If this is the current context for the thread, doneCurrent is called
+*/
+QWindowContext::~QWindowContext()
+{
+    if (QWindowContext::currentContext() == this) {
+        doneCurrent();
+    }
+
+}
+
+/*!
+    Reimplement in subclass to do makeCurrent on native GL context
+*/
+void QWindowContext::makeCurrent()
+{
+    Q_D(QWindowContext);
+    QWindowContextPrivate::setCurrentContext(this);
+    d->platformGLContext->makeCurrent();
+}
+
+/*!
+    Reimplement in subclass to release current context.
+    Typically this is calling makeCurrent with 0 "surface"
+*/
+void QWindowContext::doneCurrent()
+{
+    Q_D(QWindowContext);
+    d->platformGLContext->doneCurrent();
+    QWindowContextPrivate::setCurrentContext(0);
+}
+
+void QWindowContext::swapBuffers()
+{
+    Q_D(QWindowContext);
+    d->platformGLContext->swapBuffers();
+}
+
+void (*QWindowContext::getProcAddress(const QByteArray &procName)) ()
+{
+    Q_D(QWindowContext);
+    void *result = d->platformGLContext->getProcAddress(QString::fromAscii(procName.constData()));
+    return (void (*)())result;
+}
+
+/*
+  internal: Needs to have a pointer to qGLContext. But since this is in QtGui we cant
+  have any type information.
+*/
+void *QWindowContext::qGLContextHandle() const
+{
+    Q_D(const QWindowContext);
+    return d->qGLContextHandle;
+}
+
+void QWindowContext::setQGLContextHandle(void *handle,void (*qGLContextDeleteFunction)(void *))
+{
+    Q_D(QWindowContext);
+    d->qGLContextHandle = handle;
+    d->qGLContextDeleteFunction = qGLContextDeleteFunction;
+}
+
+void QWindowContext::deleteQGLContext()
+{
+    Q_D(QWindowContext);
+    if (d->qGLContextDeleteFunction && d->qGLContextHandle) {
+        d->qGLContextDeleteFunction(d->qGLContextHandle);
+        d->qGLContextDeleteFunction = 0;
+        d->qGLContextHandle = 0;
+    }
+}