--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ganeswidgets/src/hgvgimagepool.cpp	Mon Apr 19 14:40:06 2010 +0300
@@ -0,0 +1,89 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#include "hgvgimagepool.h"
+#include "trace.h"
+
+HgVgImagePool::HgVgImagePool(int numImages, int imgWidth, int imgHeight, bool alpha)
+{
+    for (int i = 0; i < numImages; i++)
+    {
+        VGImage vgimage = vgCreateImage(alpha ? VG_sARGB_8888 : VG_sRGB_565,
+            imgWidth, imgHeight,VG_IMAGE_QUALITY_NONANTIALIASED);
+
+        mFreeImages.push_back(vgimage);
+    }
+}
+HgVgImagePool::~HgVgImagePool()
+{
+    QLinkedList<VGImage>::const_iterator it = mUsedImages.begin();
+    while (it != mUsedImages.end())
+    {
+        vgDestroyImage((*it));
+        it++;
+    }
+
+    QLinkedList<VGImage>::const_iterator it2 = mFreeImages.begin();
+    while (it2 != mFreeImages.end())
+    {
+        vgDestroyImage((*it2));
+        it2++;
+    }
+
+}
+void HgVgImagePool::releaseImage(VGImage image)
+{
+    if (image == VG_INVALID_HANDLE)
+        return;
+
+    for (QLinkedList<VGImage>::iterator it = mUsedImages.begin();
+        it != mUsedImages.end(); ++it)
+    {
+        if ((*it) == image)
+        {
+            mUsedImages.erase(it);
+            break;
+        }
+    }
+    vgClearImage(image, 0, 0, vgGetParameteri(image, VG_IMAGE_WIDTH), vgGetParameteri(image, VG_IMAGE_HEIGHT));
+    mFreeImages.push_back(image);
+}
+
+VGImage HgVgImagePool::getImage()
+{
+    FUNC_LOG
+
+    if (mFreeImages.empty())
+    {
+        INFO("Hg: Run out of images!");
+
+        // if no free images left, use the one which was allocated
+        // longer ago
+        QLinkedList<VGImage>::iterator i = mUsedImages.begin();
+        VGImage img = *i;
+        mUsedImages.erase(i);
+        mUsedImages.push_back(img);
+        return img;
+    }
+
+    QLinkedList<VGImage>::iterator i = mFreeImages.begin();
+    VGImage img = *i;
+    mUsedImages.push_back(img);
+    mFreeImages.erase(i);
+
+    return img;
+}