DtDiGuyOsgGraphicsShape.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvDiGuy/vrvDiGuy.h>

#include <diguyGraphicsShape.h>

#include <osg/Switch>
#include <osg/LOD>
#include <osg/Geode>
#include <osg/Texture2D>

#include <osgEarth/ShaderUtils>

struct FondDataWrapper;

namespace makVrv
{
    class DtDiGuyOsgTextureAttribute;
    class DtDiGuyNameTextureDrawCallback;


    struct DT_DLL_VRVDIGUY diguyOsgMeshOffsets
    {
       osg::ref_ptr<osg::Uniform> m_ufrm_link_matrix;
       osg::Matrixf m_offset;
    };


   class DT_DLL_VRVDIGUY DtDiGuyOsgGraphicsShape : public diguyGraphicsShape
   {
   public:
      DtDiGuyOsgGraphicsShape( void* internal_data );

      virtual ~DtDiGuyOsgGraphicsShape();

   private:
      DtDiGuyOsgGraphicsShape(const DtDiGuyOsgGraphicsShape&) = delete;
      DtDiGuyOsgGraphicsShape& operator=(const DtDiGuyOsgGraphicsShape&) = delete;

   public:
      virtual void build() override;

      virtual void unbuild() override;

      virtual void show() override;

      virtual void hide() override;

      virtual void set_graphics_lod_ranges( float* lodRanges ) override;

      virtual void update_variation_texture( int num_pixels, unsigned char* pixel_data ) override;

      virtual void update() override;
   
      virtual void update_name_texture() override;

      virtual osg::Node* rootNode();

      virtual osg::StateSet* stateSet();
      virtual osg::StateSet* parentStateSet();

      virtual void setAdditionalTboData(const std::vector<float>& tboData);
      virtual const std::vector<float>& getAdditionalTboData();

      virtual bool getHasSwitches();
   
      virtual DtDiGuyOsgTextureAttribute* nameTexture();

   public:

      static char* UniformLinkMatricesString;

      static const osg::ref_ptr<osg::Texture2D>& getVariationTexture2D();

      static void releaseGLObjects();

   protected:

      friend DtDiGuyNameTextureDrawCallback;
      virtual void create_name_texture();

      // this should probably be static 
      virtual void create_shared_variation_texture();
      virtual void create_variation_texture( unsigned char* variation_texture_data );

      virtual osg::Geode* create_geode(const char* shape_set_name, bool flash);

   protected:

      std::vector<osg::ref_ptr<osg::Switch> > mySwitchNodeArray; // one per lod level

      osg::ref_ptr<osg::Uniform> myUniformLinkColor;
      osg::ref_ptr<osg::StateSet> myStateSet;
      osg::ref_ptr<osg::Uniform> myUniformLinkMatrix;
      osg::ref_ptr<osg::Uniform> myUniformLinkMatrices;
      osg::ref_ptr<osg::Uniform> myUniformComponentMapRow;
      osg::ref_ptr<osg::Uniform> myUniformPBRReady;
      osg::ref_ptr<osg::Uniform> myUniformDecalEnabled;
      osg::ref_ptr<osg::Uniform> myUniformDecalIndex;
      osg::ref_ptr<osg::Uniform> myUniformLodFade;
      osg::ref_ptr<osg::Uniform> myUniformBlendWeights;
      osg::ref_ptr<osg::Uniform> myUniformBlendIndecies;
      std::vector<float> myAdditionalTboData;

      osg::ref_ptr<osg::Group> myGeodeGroup;

      std::vector<osg::Geode*> m_geodes;
      diguyCharacter* myCharacter;

      bool myNeedsTextureUpdate;
      
      std::vector< diguyOsgMeshOffsets> m_offset_array;

      DtDiGuyOsgTextureAttribute* myNameTexture;


   protected:
      static bool UsePixelLods;

      static osg::ref_ptr<osg::Texture2D> sm_variation_texture;

   };

}


diguyGraphicsShape* diguyOsgGraphicsShape_create_func(void* internal_data);