MappingOps Class Reference

A class for mapping and slicing operations. More...

#include <MappingOps.hpp>

Static Public Member Functions
static void	assignMappingIndices (jint *indices, const jint *dims, const jint *strides, jint nDims)
	Creates an array of physical indices. More...
static void	assignSlicingIndices (jint *indices, const jint *dims, const jint *strides, jint nDims, jint **sliceIndices)
	Creates an array of physical slicing indices. More...
static void	checkDimensions (const jint *dims, const jint *strides, jint nDims, jint len)
	Checks an array's dimensions and strides. More...
static void	assign (JNIEnv *env, ArrayPinHandler::jarray_type type, jarray srcV, jint *srcIndices, jarray dstV, jint *dstIndices, jint nIndices)
	Assigns source values to destination values based on arrays of physical indices. More...
static void	map (JNIEnv *env, jobject thisObj, jintArray bounds, jobject srcV, jintArray srcD, jintArray srcS, jobject dstV, jintArray dstD, jintArray dstS)
	Performs a mapping operation. More...
static MappingResult *	map (const jint *boundsArr, const jint *srcDArr, const jint *srcSArr, jint srcLen, const jint *dstDArr, const jint *dstSArr, jint dstLen, jint nDims)
	Computes source and destination mapping indices. More...
static void	slice (JNIEnv *env, jobject thisObj, jintArray slices, jobject srcV, jintArray srcD, jintArray srcS, jobject dstV, jintArray dstD, jintArray dstS)
	Performs a slicing operation. More...
static MappingResult *	slice (const jint *slicesArr, jint nSlices, const jint *srcDArr, const jint *srcSArr, jint srcLen, const jint *dstDArr, const jint *dstSArr, jint dstLen, jint nDims)
	Computes source and destination slicing indices. More...

Detailed Description

A class for mapping and slicing operations.

Member Function Documentation

void MappingOps::assign ( JNIEnv *  env, ArrayPinHandler::jarray_type  type, jarray  srcV, jint *  srcIndices, jarray  dstV, jint *  dstIndices, jint  nIndices  )

static

Assigns source values to destination values based on arrays of physical indices.

Parameters

env	the JNI environment.
type	the array type.
srcV	the source array.
srcIndices	the source indices.
dstV	the destination array.
dstIndices	the destination indices.
nIndices	the number of indices.

void MappingOps::assignMappingIndices ( jint *  indices, const jint *  dims, const jint *  strides, jint  nDims  )

static

Creates an array of physical indices.

Parameters

indices	the result array.
dims	the mapping dimensions.
strides	the strides.
nDims	the number of dimensions.

void MappingOps::assignSlicingIndices ( jint *  indices, const jint *  dims, const jint *  strides, jint  nDims, jint **  sliceIndices  )

static

Creates an array of physical slicing indices.

Parameters

indices	the result array.
dims	the slicing dimensions.
strides	the strides.
nDims	the number of dimensions.
sliceIndices	the indices to slice on arranged by dimension.

void MappingOps::checkDimensions ( const jint *  dims, const jint *  strides, jint  nDims, jint  len  )

static

Checks an array's dimensions and strides.

Parameters

len	the array length.
dims	the dimensions.
strides	the strides.
nDims	the number of dimensions.

void MappingOps::map ( JNIEnv *  env, jobject  thisObj, jintArray  bounds, jobject  srcV, jintArray  srcD, jintArray  srcS, jobject  dstV, jintArray  dstD, jintArray  dstS  )

static

Performs a mapping operation.

Parameters

env	the JNI environment.
thisObj	this object.
bounds	the mapping bounds.
srcV	the source values.
srcD	the source dimensions.
srcS	the source strides.
dstV	the destination values.
dstD	the destination dimensions.
dstS	the destination strides.

MappingResult * MappingOps::map ( const jint *  boundsArr, const jint *  srcDArr, const jint *  srcSArr, jint  srcLen, const jint *  dstDArr, const jint *  dstSArr, jint  dstLen, jint  nDims  )

static

Computes source and destination mapping indices.

Parameters

boundsArr	the mapping bounds.
srcDArr	the source dimensions.
srcSArr	the source strides.
srcLen	the number of source values.
dstDArr	the destination dimensions.
dstSArr	the destination strides.
dstLen	the number of destination values.
nDims	the number of dimensions.

Returns

the MappingResult.

void MappingOps::slice ( JNIEnv *  env, jobject  thisObj, jintArray  slices, jobject  srcV, jintArray  srcD, jintArray  srcS, jobject  dstV, jintArray  dstD, jintArray  dstS  )

static

Performs a slicing operation.

Parameters

env	the JNI environment.
thisObj	this object.
slices	the slicing specification.
srcV	the source values.
srcD	the source dimensions.
srcS	the source strides.
dstV	the destination values.
dstD	the destination dimensions.
dstS	the destination strides.

MappingResult * MappingOps::slice ( const jint *  slicesArr, jint  nSlices, const jint *  srcDArr, const jint *  srcSArr, jint  srcLen, const jint *  dstDArr, const jint *  dstSArr, jint  dstLen, jint  nDims  )

static

Computes source and destination slicing indices.

Parameters

slicesArr	the slicing specification.
nSlices	the number of slices.
srcDArr	the source dimensions.
srcSArr	the source strides.
srcLen	the number of source values.
dstDArr	the destination dimensions.
dstSArr	the destination strides.
dstLen	the number of destination values.
nDims	the number of dimensions.

Returns

the MappingResult.