3espointcloudshape.h

//
// author: Kazys Stepanas
//
#ifndef _3ESPOINTS_H_
#define _3ESPOINTS_H_

#include "3es-core.h"

#include "3esshape.h"
#include "3esmeshset.h"

namespace tes
{
  class _3es_coreAPI PointCloudShape : public Shape
  {
  public:
    PointCloudShape(const MeshResource *mesh, uint32_t id = 0, uint16_t category = 0, uint8_t pointSize = 1);

    ~PointCloudShape();

    inline PointCloudShape &setPointSize(uint8_t size) { _pointSize = size; return *this; }
    inline uint8_t pointSize() const { return _pointSize; }

    template <typename I>
    PointCloudShape &setIndices(I begin, uint32_t indexCount);

    inline const MeshResource *mesh() const { return _mesh; }

    virtual bool writeCreate(PacketWriter &stream) const override;

    virtual int writeData(PacketWriter &stream, unsigned &progressMarker) const override;

    virtual inline bool isComplex() const override { return true; }

    int enumerateResources(const Resource **resources, int capacity, int fetchOffset) const override;

    Shape *clone() const override;

  private:
    void onClone(PointCloudShape *copy) const;

    uint32_t *allocateIndices(uint32_t count);
    void freeIndices(const uint32_t *indices);

    const MeshResource *_mesh;
    uint32_t *_indices;
    uint32_t _indexCount;
    uint8_t _pointSize;
  };


  inline PointCloudShape::PointCloudShape(const MeshResource *mesh, uint32_t id, uint16_t category, uint8_t pointSize)
    : Shape(SIdPointCloud, id, category)
    , _mesh(mesh)
    , _indices(nullptr)
    , _indexCount(0)
    , _pointSize(pointSize)
  {
  }


  inline PointCloudShape::~PointCloudShape()
  {
    freeIndices(_indices);
  }


  template <typename I>
  PointCloudShape &PointCloudShape::setIndices(I iter, uint32_t indexCount)
  {
    freeIndices(_indices);
    _indices = nullptr;
    _indexCount = indexCount;
    if (indexCount)
    {
      _indices = allocateIndices(indexCount);
      uint32_t *ind = _indices;
      for (uint32_t i = 0; i < indexCount; ++i, ++ind, ++iter)
      {
        *ind = *iter;
      }
    }

    return *this;
  }
}

#endif // _3ESPOINTS_H_