DtFlatPrimitiveStyle.h

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/*****************************************************************************
 * Copyright (c) 2023 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/


#pragma once

#include <vrvGraphics/DtFlat2DRenderer.h>
#include <vrvGraphics/DtPrimitiveStyle.h>

#include <matrix/vlVector.h>

#include <vector>

namespace makVrv
{

   class DtOverlayResourceProvider;
   struct DtObserverRenderData;

   class DT_DLL_VRVGRAPHICS DtFlatPrimitiveStyle : public DtPrimitiveStyle
   {
   public:

      DtFlatPrimitiveStyle( DtOverlayResourceProvider& provider,
         unsigned int vertexCountPerPrimitve );

      virtual ~DtFlatPrimitiveStyle();

      virtual void add( unsigned int* index );

      virtual void remove( unsigned int index );

      virtual void render(int mode, unsigned int groupCount, bool geocentric,
         float geocentricAlpha, const double cameraLocation[3],
         const DtObserverRenderData& observerRenderData,
         const double positionMatrix[16], const double projectionMatrix[16],
         const int viewport[4], int offset) override;

      virtual void update( int renderMode );


      virtual void set3DVertexPosition( unsigned int index, unsigned int vertex,
         float x, float y, float z, float w = 0 );

      virtual void set3DVertexQuadPositions(unsigned int index,
          float x, float y, float z, float w);

      virtual void get3DVertexPosition( unsigned int index, unsigned int vertex,
         float& x, float& y, float& z, float& w ) const;

      virtual void set2DVertexPosition( unsigned int index, unsigned int vertex,
         float x, float y );

      virtual void get2DVertexPosition( unsigned int index, unsigned int vertex,
         float& x, float& y ) const;

      virtual void set2DOffsetRotation( unsigned int index,
         unsigned int vertIndex, float angle );

      virtual void get2DOffsetRotation( unsigned int index,
         unsigned int vertIndex, float& angle ) const;

      virtual void setColor( unsigned int index, unsigned int vertIndex,
         float r, float g, float b, float a );

      virtual void getColor( unsigned int index, unsigned int vertIndex,
         float& r, float& g, float& b, float& a ) const;

      virtual void setUVCoordinates( unsigned int index,
         unsigned int vertIndex, float u, float v );

      virtual void getUVCoordinates( unsigned int index,
         unsigned int vertIndex, float& u, float& v ) const;

      virtual void projectUVCoordinates(unsigned int index, const DtVector& origin,
         const DtVector& axisU, const DtVector& axisV, float scale) override;




      virtual void setFillParameters( unsigned int index, 
         unsigned int fullStipplePattern[32] = 0 ) override;

      virtual void getFillParameters( unsigned int index, 
         unsigned int fullStipplePattern[32] = 0 ) const override;

      virtual void setFillPatternFrequency(unsigned int index, float frequency) override;

      virtual void setTextureHandle( unsigned int index, DtTextureInterface* newTextureHandle ) override;
      
      virtual DtTextureInterface* findTextureHandle( unsigned int index ) const override;

      virtual void setGroup( unsigned int index, float zFactor );

      virtual float group( unsigned int index ) const;

      virtual void setVisible( unsigned int index, bool visible );

      virtual bool visible (unsigned int index) const;


   protected:

      virtual float* vertexData() const;

      virtual unsigned int vertexDataSize() const;

   protected:
      struct FlatPrimitiveInfo
      {
         unsigned int group;
         unsigned int* indexPtr;
         bool visible;
      };

      struct SortFlatPrimitives
      {
         bool operator()( const FlatPrimitiveInfo& left, const FlatPrimitiveInfo& right )
         {
            return (left.group < right.group);
         }
      };

      bool mySortDirty;

      typedef std::vector<FlatPrimitiveInfo> FlatPrimitiveInfoList;
      typedef std::vector<unsigned int> FlatIndexList;
      typedef std::vector<DtOffsetColoredVertex> QuadVertexList;

      FlatPrimitiveInfoList myFlatPrimitives;
      FlatPrimitiveInfoList mySortedFlatPrimitives;
      FlatIndexList myFlatIndices;

      DtOverlayResourceProvider& myResourceProvider;
      QuadVertexList myVertices;
      DtProjected2DFlatEffect* myEffect;

   };

}