80 lines
3.7 KiB
C
80 lines
3.7 KiB
C
/**
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* @file dataCompression.h
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* @author Sheng Di
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* @date July, 2017
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* @brief Header file for the dataCompression.c.
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* (C) 2016 by Mathematics and Computer Science (MCS), Argonne National Laboratory.
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* See COPYRIGHT in top-level directory.
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*/
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#ifndef _DataCompression_H
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#define _DataCompression_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "sz.h"
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#include <stdio.h>
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#include <stdbool.h>
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#define computeMinMax(data) \
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for(i=1;i<size;i++)\
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{\
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data_ = data[i];\
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if(min>data_)\
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min = data_;\
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else if(max<data_)\
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max = data_;\
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}\
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//dataCompression.c
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double computeRangeSize_double(double* oriData, size_t size, double* valueRangeSize, double* medianValue);
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float computeRangeSize_float(float* oriData, size_t size, float* valueRangeSize, float* medianValue);
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double min_d(double a, double b);
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double max_d(double a, double b);
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float min_f(float a, float b);
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float max_f(float a, float b);
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double getRealPrecision_double(double valueRangeSize, int errBoundMode, double absErrBound, double relBoundRatio, int *status);
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double getRealPrecision_float(float valueRangeSize, int errBoundMode, double absErrBound, double relBoundRatio, int *status);
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double getRealPrecision_int(long valueRangeSize, int errBoundMode, double absErrBound, double relBoundRatio, int *status);
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void symTransform_8bytes(unsigned char data[8]);
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void symTransform_2bytes(unsigned char data[2]);
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void symTransform_4bytes(unsigned char data[4]);
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void compressSingleFloatValue(FloatValueCompressElement *vce, float tgtValue, float precision, float medianValue,
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int reqLength, int reqBytesLength, int resiBitsLength);
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void compressSingleDoubleValue(DoubleValueCompressElement *vce, double tgtValue, double precision, double medianValue,
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int reqLength, int reqBytesLength, int resiBitsLength);
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int compIdenticalLeadingBytesCount_double(unsigned char* preBytes, unsigned char* curBytes);
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int compIdenticalLeadingBytesCount_float(unsigned char* preBytes, unsigned char* curBytes);
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void addExactData(DynamicByteArray *exactMidByteArray, DynamicIntArray *exactLeadNumArray,
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DynamicIntArray *resiBitArray, LossyCompressionElement *lce);
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int getPredictionCoefficients(int layers, int dimension, int **coeff_array, int *status);
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int computeBlockEdgeSize_3D(int segmentSize);
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int computeBlockEdgeSize_2D(int segmentSize);
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int generateLossyCoefficients_float(float* oriData, double precision, size_t nbEle, int* reqBytesLength, int* resiBitsLength, float* medianValue, float* decData);
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int compressExactDataArray_float(float* oriData, double precision, size_t nbEle, unsigned char** leadArray, unsigned char** midArray, unsigned char** resiArray,
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int reqLength, int reqBytesLength, int resiBitsLength, float medianValue);
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void decompressExactDataArray_float(unsigned char* leadNum, unsigned char* exactMidBytes, unsigned char* residualMidBits, size_t nbEle, int reqLength, float medianValue, float** decData);
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int generateLossyCoefficients_double(double* oriData, double precision, size_t nbEle, int* reqBytesLength, int* resiBitsLength, double* medianValue, double* decData);
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int compressExactDataArray_double(double* oriData, double precision, size_t nbEle, unsigned char** leadArray, unsigned char** midArray, unsigned char** resiArray,
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int reqLength, int reqBytesLength, int resiBitsLength, double medianValue);
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void decompressExactDataArray_double(unsigned char* leadNum, unsigned char* exactMidBytes, unsigned char* residualMidBits, size_t nbEle, int reqLength, double medianValue, double** decData);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ----- #ifndef _DataCompression_H ----- */
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