QuadPatchField.h

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#ifndef GlobeEngine_Raster_QuadPatchField_h
#define GlobeEngine_Raster_QuadPatchField_h

#include "OpenGL_Includes.h"
#include "DrawableComponent.h"
#include "MBlockQuadtree.h"
#include "MBlock.h"
//#include "ArrayTree.h"
#include "BufferArray.h"
#include "Buffer.h"
#include "DrawCommand.h"
#include "Timer.h"
#include "TerrainConfigStructs.h"
#include "DrawCommand.h"

namespace geRaster {

    class QuadPatchField : public ge::DrawableComponent
    {
        // Assuming symetric xy patches
        struct QuadPatchInfo
        {
            GLuint verticesPerSide;
            int triangleCountPerRow;
            int quadPatchIndexCount;
        };
        
        // describes the 9 patch types
        enum PatchType {FULL = 0, BOTTOM, UP , RIGHT, LEFT, UPRIGHT, UPLEFT, BOTTOMLEFT, BOTTOMRIGHT};
        
    public:
        QuadPatchField();
        ~QuadPatchField();
        void clear();
        void clearInitial();
        void create() {};
        void create(std::shared_ptr<MBlockQuadtree> _quadtree, short _max_lod, double _max_dist_error,geRaster::TerrainVis::VisualizationMode  _mode, vmml::Vector3d _pos);
        
        void createGeometry();
        
        void draw(std::shared_ptr<ge::Camera> _cam);
        void update() {};
        void storeInfoToUniformBuffers();
        
        void rescale(float _input);

        void setVisualizationType(TerrainVis::VisualizationMode _input);
        
    private:
        void drawPrimitives();
        // draw state
        std::shared_ptr<MBlockQuadtree> quadtree;
        
        TerrainVis::VisualizationMode visMode;
        
        float rescaleValue;
        
        TriangulationGPUBuffer backbuffer;
        QuadPatchInfo patchInfo;
                
        //int visibleMBlockCount;
        
#ifndef GENGINE_GL_BELOW_410        
        std::shared_ptr<ge::DrawArraysInstancedCommand> drawInstancedCommand;
#endif      
        ge::UniformBufferArray triangulationInfo;

    };
     
}
#endif