ANARIMapper.h

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//============================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//============================================================================
 
#ifndef vtk_m_interop_anari_ANARIMapper_h
#define vtk_m_interop_anari_ANARIMapper_h
 
// vtk-m
#include <vtkm/cont/ColorTable.h>
#include <vtkm/interop/anari/ANARIActor.h>
 
#include <vtkm/interop/anari/vtkm_anari_export.h>
 
namespace vtkm
{
namespace interop
{
namespace anari
{
 
inline void NoopANARIDeleter(const void*, const void*) {}
 
struct VTKM_ANARI_EXPORT ANARIMapper
{
  ANARIMapper(anari_cpp::Device device,
              const ANARIActor& actor = {},
              const std::string& name = "<noname>",
              const vtkm::cont::ColorTable& colorTable = vtkm::cont::ColorTable::Preset::Default);
  virtual ~ANARIMapper() = default;
 
  anari_cpp::Device GetDevice() const;
  const ANARIActor& GetActor() const;
  const char* GetName() const;
  const vtkm::cont::ColorTable& GetColorTable() const;
 
  void SetName(const char* name);
  void SetColorTable(const vtkm::cont::ColorTable& colorTable);
 
  virtual void SetActor(const ANARIActor& actor);
 
  virtual void SetMapFieldAsAttribute(bool enabled);
  bool GetMapFieldAsAttribute() const;
 
  virtual void SetANARIColorMap(anari_cpp::Array1D color,
                                anari_cpp::Array1D opacity,
                                bool releaseArrays = true);
 
  virtual void SetANARIColorMapValueRange(const vtkm::Vec2f_32& valueRange);
 
  virtual void SetANARIColorMapOpacityScale(vtkm::Float32 opacityScale);
 
  virtual anari_cpp::Geometry GetANARIGeometry();
 
  virtual anari_cpp::SpatialField GetANARISpatialField();
 
  virtual anari_cpp::Surface GetANARISurface();
 
  virtual anari_cpp::Volume GetANARIVolume();
 
  anari_cpp::Group GetANARIGroup();
  anari_cpp::Instance GetANARIInstance();
 
  bool GroupIsEmpty() const;
 
protected:
  std::string MakeObjectName(const char* suffix) const;
  void RefreshGroup();
 
  vtkm::cont::ColorTable& GetColorTable();
 
  bool Valid{ false };
  bool Current{ false };
 
private:
  struct ANARIHandles
  {
    anari_cpp::Device Device{ nullptr };
    anari_cpp::Group Group{ nullptr };
    anari_cpp::Instance Instance{ nullptr };
    ~ANARIHandles();
  };
 
  std::shared_ptr<ANARIHandles> Handles;
  ANARIActor Actor;
  vtkm::cont::ColorTable ColorTable;
  std::string Name;
  bool MapFieldAsAttribute{ true };
};
 
} // namespace anari
} // namespace interop
} // namespace vtkm
 
#endif