Interface Factor3NTTStepStrategy

All Known Implementing Classes:
DoubleFactor3NTTStepStrategy, FloatFactor3NTTStepStrategy, IntAparapiFactor3NTTStepStrategy, IntFactor3NTTStepStrategy, LongAparapiFactor3NTTStepStrategy, LongFactor3NTTStepStrategy

public interface Factor3NTTStepStrategy
Steps for the factor-3 NTT.
Since:
1.7.0
Version:
1.7.0
Author:
Mikko Tommila
  • Method Summary

    Modifier and Type
    Method
    Description
    long
    Get the maximum transform length.
    void
    transformColumns​(DataStorage dataStorage0, DataStorage dataStorage1, DataStorage dataStorage2, long startColumn, long columns, long power2length, long length, boolean isInverse, int modulus)
    Transform the columns of a matrix using a 3-point transform.
  • Method Details

    • transformColumns

      void transformColumns(DataStorage dataStorage0, DataStorage dataStorage1, DataStorage dataStorage2, long startColumn, long columns, long power2length, long length, boolean isInverse, int modulus) throws ApfloatRuntimeException
      Transform the columns of a matrix using a 3-point transform.
      Parameters:
      dataStorage0 - The data of the first column.
      dataStorage1 - The data of the second column.
      dataStorage2 - The data of the third column.
      startColumn - The starting element index in the data storages to transform.
      columns - How many columns to transform.
      power2length - Length of the column transform.
      length - Length of total transform (three times the length of one column).
      isInverse - true if an inverse transform is performed, false if a forward transform is performed.
      modulus - Index of the modulus.
      Throws:
      ApfloatRuntimeException
    • getMaxTransformLength

      long getMaxTransformLength()
      Get the maximum transform length.
      Returns:
      The maximum transform length.