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diff --git a/src/runtimerender/Qt3DSRenderImageTextureData.h b/src/runtimerender/Qt3DSRenderImageTextureData.h
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+++ b/src/runtimerender/Qt3DSRenderImageTextureData.h
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+/****************************************************************************
+**
+** Copyright (C) 2008-2012 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** 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 General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) 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.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-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#pragma once
+#ifndef QT3DS_RENDER_IMAGE_TEXTURE_DATA_H
+#define QT3DS_RENDER_IMAGE_TEXTURE_DATA_H
+#include "Qt3DSRender.h"
+#include "foundation/Qt3DSFlags.h"
+
+#include <QtCore/qsharedpointer.h>
+#include <QtCore/qvector.h>
+
+namespace qt3ds {
+namespace render {
+
+    // forward declararion
+    class Qt3DSRenderPrefilterTexture;
+
+    struct ImageTextureFlagValues
+    {
+        enum Enum {
+            HasTransparency = 1,
+            InvertUVCoords = 1 << 1,
+            PreMultiplied = 1 << 2,
+        };
+    };
+
+    struct SImageTextureFlags : public NVFlags<ImageTextureFlagValues::Enum, QT3DSU32>
+    {
+        bool HasTransparency() const
+        {
+            return this->operator&(ImageTextureFlagValues::HasTransparency);
+        }
+        void SetHasTransparency(bool inValue)
+        {
+            clearOrSet(inValue, ImageTextureFlagValues::HasTransparency);
+        }
+
+        bool IsInvertUVCoords() const
+        {
+            return this->operator&(ImageTextureFlagValues::InvertUVCoords);
+        }
+        void SetInvertUVCoords(bool inValue)
+        {
+            clearOrSet(inValue, ImageTextureFlagValues::InvertUVCoords);
+        }
+
+        bool IsPreMultiplied() const
+        {
+            return this->operator&(ImageTextureFlagValues::PreMultiplied);
+        }
+        void SetPreMultiplied(bool inValue)
+        {
+            clearOrSet(inValue, ImageTextureFlagValues::PreMultiplied);
+        }
+    };
+
+    struct SImageTextureData
+    {
+        NVRenderTexture2D *m_Texture;
+        SImageTextureFlags m_TextureFlags;
+        Qt3DSRenderPrefilterTexture *m_BSDFMipMap;
+
+        SImageTextureData()
+            : m_Texture(nullptr)
+            , m_BSDFMipMap(nullptr)
+        {
+        }
+
+        SImageTextureData(const SImageTextureData& data)
+            : m_Texture(data.m_Texture), m_TextureFlags(data.m_TextureFlags)
+            , m_BSDFMipMap(data.m_BSDFMipMap)
+        {
+
+        }
+
+        bool operator!=(const SImageTextureData &inOther)
+        {
+            return m_Texture != inOther.m_Texture || m_TextureFlags != inOther.m_TextureFlags
+                || m_BSDFMipMap != inOther.m_BSDFMipMap;
+        }
+    };
+
+    struct IReloadableCallback
+    {
+        virtual ~IReloadableCallback() {}
+        virtual void onLoad() = 0;
+        virtual void onUnload() = 0;
+    };
+
+    struct SImage;
+    struct SReloadableImageTextureData : public SImageTextureData
+    {
+        QString m_path;
+        bool m_loaded;
+        bool m_scanTransparency;
+        bool m_bsdfMipmap;
+        bool m_initialized;
+        QVector<SImage *> m_callbacks;
+
+        SReloadableImageTextureData()
+            : SImageTextureData()
+            , m_loaded(false), m_scanTransparency(false), m_bsdfMipmap(false), m_initialized(false)
+        {
+        }
+    };
+
+    typedef QSharedPointer<SReloadableImageTextureData> ReloadableTexturePtr;
+}
+}
+
+#endif