text: #ifndef GLES3_OPENCVMATTOUI_OPENCVMATTOUI_HPP
  #define GLES3_OPENCVMATTOUI_OPENCVMATTOUI_HPP
  /****************************************************************************************************************************************************
  * Copyright 2017 NXP
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *    * Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *
  *    * Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *
  *    * Neither the name of the NXP. nor the names of
  *      its contributors may be used to endorse or promote products derived from
  *      this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  ****************************************************************************************************************************************************/
  
  #include <FslDemoApp/OpenGLES3/DemoAppGLES3.hpp>
  #include <FslDemoApp/Base/Service/Graphics/IGraphicsService.hpp>
  #include <FslGraphics/Render/Adapter/INativeBatch2D.hpp>
  #include <FslGraphics/Render/Texture2D.hpp>
  #include <FslSimpleUI/App/UIDemoAppExtension.hpp>
  #include <OpenCVExperimental/BasicImageConvert.hpp>
  
  namespace Fsl
  {
    class OpenCVMatToUI
      : public DemoAppGLES3
      , public UI::EventListener
    {
      // The UI event listener is responsible for forwarding events to this classes implementation of the UI::EventListener (while its still alive).
      UI::CallbackEventListenerScope m_uiEventListener;
      // The UIDemoAppExtension is a simple extension that sets up the basic UI framework and listens for the events it needs.
      std::shared_ptr<UIDemoAppExtension> m_uiExtension;
  
      std::shared_ptr<IGraphicsService> m_graphics;
      std::shared_ptr<INativeBatch2D> m_nativeBatch;
      BasicImageConvert m_convert;
  
      Texture2D m_texTest;
      Texture2D m_texTestR;
      Texture2D m_texTestG;
      Texture2D m_texTestB;
      Texture2D m_texTestMat;
      Texture2D m_texTestMatR;
      Texture2D m_texTestMatG;
      Texture2D m_texTestMatB;
    public:
      OpenCVMatToUI(const DemoAppConfig& config);
      ~OpenCVMatToUI();
    protected:
      virtual void Update(const DemoTime& demoTime) override;
      virtual void Draw(const DemoTime& demoTime) override;
    private:
      void CreateReferenceTextures(const std::shared_ptr<IContentManager>& contentManager);
      void CreateOpenCVTextures(const std::shared_ptr<IContentManager>& contentManager);
      void CreateUI();
    };
  }
  
  #endif
  