PERF: SegmentFeature Filters, IdentifySample, FillBadData OoC Optimization

CMakeLists.txt

@@ -537,6 +537,7 @@ set(SIMPLNX_HDRS
   ${SIMPLNX_SOURCE_DIR}/Utilities/DataGroupUtilities.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/DataObjectUtilities.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/DataStoreUtilities.hpp
+  ${SIMPLNX_SOURCE_DIR}/Utilities/AlgorithmDispatch.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/FilePathGenerator.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/ColorTableUtilities.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/FileUtilities.hpp
@@ -558,6 +559,7 @@ set(SIMPLNX_HDRS
   ${SIMPLNX_SOURCE_DIR}/Utilities/ParallelTaskAlgorithm.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/SamplingUtils.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/SegmentFeatures.hpp
+  ${SIMPLNX_SOURCE_DIR}/Utilities/UnionFind.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/TimeUtilities.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/TooltipGenerator.hpp
   ${SIMPLNX_SOURCE_DIR}/Utilities/TooltipRowItem.hpp

src/Plugins/OrientationAnalysis/src/OrientationAnalysis/Filters/Algorithms/CAxisSegmentFeatures.hpp

@@ -49,13 +49,41 @@ class ORIENTATIONANALYSIS_EXPORT CAxisSegmentFeatures : public SegmentFeatures
   int64 getSeed(int32 gnum, int64 nextSeed) const override;
   bool determineGrouping(int64 referencePoint, int64 neighborPoint, int32 gnum) const override;
 
+  /**
+   * @brief Checks whether a voxel can participate in C-axis segmentation based on mask and phase.
+   * @param point Linear voxel index.
+   * @return true if the voxel passes mask and phase checks.
+   */
+  bool isValidVoxel(int64 point) const override;
+
+  /**
+   * @brief Determines whether two neighboring voxels belong to the same C-axis segment.
+   * @param point1 First voxel index.
+   * @param point2 Second (neighbor) voxel index.
+   * @return true if both voxels share the same phase and their C-axis misalignment is within tolerance.
+   */
+  bool areNeighborsSimilar(int64 point1, int64 point2) const override;
+
+  void prepareForSlice(int64 iz, int64 dimX, int64 dimY, int64 dimZ) override;
+
 private:
   const CAxisSegmentFeaturesInputValues* m_InputValues = nullptr;
 
   Float32Array* m_QuatsArray = nullptr;
   Int32Array* m_CellPhases = nullptr;
   std::unique_ptr<MaskCompareUtilities::MaskCompare> m_GoodVoxelsArray = nullptr;
   Int32Array* m_FeatureIdsArray = nullptr;
+
+  void allocateSliceBuffers(int64 dimX, int64 dimY);
+  void deallocateSliceBuffers();
+
+  // Rolling 2-slot input buffers for OOC optimization.
+  std::vector<float32> m_QuatBuffer;
+  std::vector<int32> m_PhaseBuffer;
+  std::vector<uint8> m_MaskBuffer;
+  int64 m_BufSliceSize = 0;
+  int64 m_BufferedSliceZ[2] = {-1, -1};
+  bool m_UseSliceBuffers = false;
 };
 
 } // namespace nx::core