ImageViz/SbImageDataAccessor.h

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/*=======================================================================
** Author      : Thibaut Andrieu (Feb 2014)
**=======================================================================*/

#ifndef _SB_IMAGE_DATA_ACCESSOR_H_
#define _SB_IMAGE_DATA_ACCESSOR_H_

#include <ImageViz/SoImageViz.h>
#include <Inventor/SbVec.h>
#include <ImageViz/SbChannelList.h>
#include <Inventor/SbBox.h>
#include <ImageViz/SbImageDataVoxel.h>
#include <Inventor/misc/SoRefCounter.h>

class SoImageDataAdapter;
class SoMemoryDataAdapter;

class  SbImageDataAccessor
{
public:

  class  Region
  {
  public:
    virtual SbVec4i32 getPosition(uint64_t i) const = 0;

    virtual SbVec4i32 getSize() const = 0;

    virtual uint64_t getNumVoxel() const = 0;

    virtual SbBox4i32 getExtent() const = 0;
  };

  class  SubVolumeRegion : public Region
  {
  public:
    SubVolumeRegion(const SbBox3i32& subVolume);

    virtual SbVec4i32 getPosition(uint64_t i) const;

    virtual SbVec4i32 getSize() const { return m_bbox.getSize(); }

    virtual uint64_t getNumVoxel() const;

    virtual SbBox4i32 getExtent() const { return m_bbox; }

  private:
    // Default constructor required for wrapping
    SubVolumeRegion() {}

  private:

    SbBox4i32 m_bbox;
  };

  static SubVolumeRegion createFullRegion(SoImageDataAdapter* image);

  static SubVolumeRegion createSliceRegion(SoImageDataAdapter* image, uint32_t sliceNumber);

  SbImageDataVoxel getVoxel(const SbVec4i32& pos );

  double getVoxel( int x, int y, int z = 0, int t = 0, int c = 0 );

  bool setVoxel( double value, int x, int y, int z = 0, int t = 0, int c = 0 );

  bool getRow( SoCpuBufferObject* values, int y, int z = 0, int t = 0, int c = 0 );

  bool getRow( std::vector<double>& values, int y, int z = 0, int t = 0, int c = 0 );

  bool setRow( const SoCpuBufferObject* values, int y, int z = 0, int t = 0, int c = 0 );

  bool setRow( const std::vector<double>& values, int y, int z = 0, int t = 0, int c = 0 );

  bool getColumn( SoCpuBufferObject* values, int x, int z = 0, int t = 0, int c = 0 );

  bool getColumn( std::vector<double>& values, int x, int z = 0, int t = 0, int c = 0 );

  bool setColumn( const SoCpuBufferObject* values, int x, int z = 0, int t = 0, int c = 0 );

  bool setColumn( const std::vector<double>& values, int x, int z = 0, int t = 0, int c = 0 );

  SoMemoryDataAdapter* copyRegion(const Region& region, const SbChannelList& channels);

  SoMemoryDataAdapter* copyRegion(const Region& region);

  SoImageDataAdapter* getImageAdapter() const { return m_image; }

private:

  friend class SoImageDataAdapter;
  SbImageDataAccessor(SoImageDataAdapter* image);

private:

  SbImageDataAccessor() {};

  SbImageDataAccessor& operator=(const SbImageDataAccessor&) { return *this; }
  SbImageDataAccessor (SbImageDataAccessor&) {}


  template <typename IMAGE_TYPE, typename REGION>
  SoMemoryDataAdapter* copyRegionGeneric(const REGION& region, const SbChannelList& channelList);

  template <typename IMAGE_TYPE>
  void getVoxelInternal(const SbVec4i32& pos, SoCpuBufferObject* voxelBuff);

  static bool checkRegionConsistency( const Region& region );

  SoImageDataAdapter* m_image;
};

#endif // _SB_IMAGE_DATA_ACCESSOR_H_

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