--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hbcore/image/hbeglstate.cpp	Mon Apr 19 14:02:13 2010 +0300
@@ -0,0 +1,130 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (developer.feedback@nokia.com)
+**
+** This file is part of the HbCore module of the UI Extensions for Mobile.
+**
+** GNU Lesser General Public License Usage
+** 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 developer.feedback@nokia.com.
+**
+****************************************************************************/
+
+#include "hbeglstate_p.h"
+#include <QMutexLocker>
+
+Q_GLOBAL_STATIC(HbEglStates, instance)
+
+HbEglStates::HbEglStates( EGLDisplay d,
+                          EGLSurface rs,
+                          EGLSurface ds,
+                          EGLContext  c,
+                          EGLConfig cfg )
+        : refCount(0),
+        init(0),
+        background(0)
+{
+    fgWatcher = HbForegroundWatcher::instance();
+    connect(fgWatcher, SIGNAL(foregroundLost()),
+            SLOT(handleForegroundLost()));
+    set(d, rs, ds, c, cfg);
+}
+
+HbEglStates::HbEglStates()
+        : refCount(0),
+        init(0),
+        background(0)
+{
+    fgWatcher = HbForegroundWatcher::instance();
+    connect(fgWatcher, SIGNAL(foregroundLost()),
+            SLOT(handleForegroundLost()));
+    reset();
+}
+
+void HbEglStates::handleForegroundLost()
+{
+    reset();
+    background = 1;
+    init = 0;
+    HbNVGEnginePool::instance()->resetNVGEngine();
+    clearImages();
+}
+
+void HbEglStates::handleForegroundGained()
+{
+    background = 0;
+}
+
+void HbEglStates::clearImages()
+{
+    if (!imageList.empty()) {
+        QMutexLocker locker(&mutex);
+        ImageListIter iter = imageList.begin();
+        for (; iter != imageList.end(); ++iter) {
+            VGImage * imgPtr = *iter;
+            if (*imgPtr) {
+                vgDestroyImage(*imgPtr);
+                *imgPtr = 0;
+            }
+        }
+        imageList.clear();
+    }
+}
+
+void HbEglStates::reset( EGLDisplay d,
+                         EGLSurface rs,
+                         EGLSurface ds,
+                         EGLContext  c,
+                         EGLConfig cfg )
+{
+    display = d;
+    currentReadSurface = rs;
+    currentWriteSurface = ds;
+    eglContext = c;
+    eglConfig = cfg;
+}
+
+void HbEglStateRestorer::restore()
+{
+    if (restored) {
+        return;
+    }
+    if (eglContext != EGL_NO_CONTEXT && currentWriteSurface != EGL_NO_SURFACE) {
+        if (eglMakeCurrent(display, currentWriteSurface,
+                           currentReadSurface, eglContext) == EGL_FALSE) {
+
+        } else {
+            restored = 1;
+        }
+    }
+}
+
+void HbEglStates::removeVGImage( VGImage * image )
+{
+    QMutexLocker locker(&mutex);
+    if (imageList.contains(image)) {
+        if (*image) {
+            vgDestroyImage(*image);
+            *image = 0;
+        }
+        imageList.remove(image);
+    }
+}
+
+HbEglStates * HbEglStates::global()
+{
+    return instance();
+}