DtOverlayRenderer.h

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/******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvGraphics/vrvGraphics.h>

#include <vrvCore/DtVirtualBaseClassCreator.h>

namespace makVrv
{
   class DtDe;
   class DtLineRenderer;
   class DtQuadRenderer;
   class DtTriangleRenderer;
   class DtTextRenderer;
   class DtOverlayResourceProvider;

   class DtOverlayRenderer;

   typedef DtVirtualBaseClassCreator<DtOverlayRenderer, DtOverlayResourceProvider&> DtOverlayRendererCreator;

   template <>
   inline const char* creatorTypeName<DtOverlayRenderer>(void) { return "DtOverlayRendererCreator"; }

   class DT_DLL_VRVGRAPHICS DtOverlayRenderer
   {
      friend DtOverlayRendererCreator;

      struct RenderInfo
      {
         unsigned int channelId;
      };

   public:
      DtOverlayRenderer(DtOverlayResourceProvider& provider);
      
      virtual ~DtOverlayRenderer();

      DtOverlayRenderer() = delete;

      DtOverlayRenderer(
         const DtOverlayRenderer &other) = delete;

      DtOverlayRenderer &operator=(
         const DtOverlayRenderer &other) = delete;

   public:

      virtual bool render(bool geocentric, float geocentricAlpha, const double location[3], double altitude,
         const double worldToWindow[16], const double projectionMatrix[16], double viewport[4]);

      virtual void releaseResources();

      virtual void setProjectCameraIs3D(bool is3D);
      virtual bool projectCameraIs3D() const;

      virtual void setProjectCameraIsNormalized( bool isNormalize);
      virtual bool projectCameraIsNormalized() const;

      virtual DtOverlayResourceProvider& resourceProvider();
      virtual DtLineRenderer& lineRenderer() const;
      virtual DtQuadRenderer& quadRenderer() const;
      virtual DtTriangleRenderer& triangleRenderer() const;
      virtual DtTextRenderer& textRenderer() const;

      virtual bool somethingToRender() const;
   protected:

      DtOverlayRenderer(DtDe& de, DtOverlayResourceProvider& provider);

      static void fillInNormalizedProjectionMatrix(const double viewport[4], double mat[16] );

      static void fillInTextProjectionMatrix(const double viewport[4], double mat[16] );

   protected:      

      DtDe& myDe;
      DtOverlayResourceProvider& myProvider;      
      DtLineRenderer* myLinesRenderer;
      DtQuadRenderer* myQuadsRenderer;
      DtTriangleRenderer* myTrianglesRenderer;
      DtTextRenderer* myTextRenderer;
      bool myProjectCameraIs3D;
      bool myProjectCameraIsNormalized;
   };
}