[2c47b73] | 1 | /** |
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| 2 | * @file sz_int8.c |
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| 3 | * @author Sheng Di |
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| 4 | * @date Aug, 2017 |
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| 5 | * @brief sz_int8, Compression and Decompression functions |
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| 6 | * (C) 2017 by Mathematics and Computer Science (MCS), Argonne National Laboratory. |
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| 7 | * See COPYRIGHT in top-level directory. |
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| 8 | */ |
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| 9 | |
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| 10 | |
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| 11 | #include <stdio.h> |
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| 12 | #include <stdlib.h> |
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| 13 | #include <string.h> |
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| 14 | #include <unistd.h> |
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| 15 | #include <math.h> |
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| 16 | #include "sz.h" |
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| 17 | #include "CompressElement.h" |
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| 18 | #include "DynamicByteArray.h" |
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| 19 | #include "DynamicIntArray.h" |
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| 20 | #include "zlib.h" |
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| 21 | #include "rw.h" |
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| 22 | #include "TightDataPointStorageI.h" |
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| 23 | #include "sz_int8.h" |
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| 24 | |
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| 25 | unsigned int optimize_intervals_int8_1D(int8_t *oriData, size_t dataLength, double realPrecision) |
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| 26 | { |
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| 27 | size_t i = 0, radiusIndex; |
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| 28 | int64_t pred_value = 0, pred_err; |
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| 29 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 30 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 31 | size_t totalSampleSize = dataLength/confparams_cpr->sampleDistance; |
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| 32 | for(i=2;i<dataLength;i++) |
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| 33 | { |
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| 34 | if(i%confparams_cpr->sampleDistance==0) |
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| 35 | { |
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| 36 | //pred_value = 2*oriData[i-1] - oriData[i-2]; |
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| 37 | pred_value = oriData[i-1]; |
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| 38 | pred_err = llabs(pred_value - oriData[i]); |
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| 39 | radiusIndex = (uint64_t)((pred_err/realPrecision+1)/2); |
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| 40 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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| 41 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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| 42 | intervals[radiusIndex]++; |
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| 43 | } |
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| 44 | } |
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| 45 | //compute the appropriate number |
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| 46 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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| 47 | size_t sum = 0; |
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| 48 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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| 49 | { |
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| 50 | sum += intervals[i]; |
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| 51 | if(sum>targetCount) |
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| 52 | break; |
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| 53 | } |
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| 54 | if(i>=confparams_cpr->maxRangeRadius) |
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| 55 | i = confparams_cpr->maxRangeRadius-1; |
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| 56 | |
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| 57 | unsigned int accIntervals = 2*(i+1); |
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| 58 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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| 59 | |
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| 60 | if(powerOf2<32) |
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| 61 | powerOf2 = 32; |
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| 62 | |
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| 63 | free(intervals); |
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| 64 | //printf("accIntervals=%d, powerOf2=%d\n", accIntervals, powerOf2); |
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| 65 | return powerOf2; |
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| 66 | } |
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| 67 | |
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| 68 | unsigned int optimize_intervals_int8_2D(int8_t *oriData, size_t r1, size_t r2, double realPrecision) |
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| 69 | { |
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| 70 | size_t i,j, index; |
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| 71 | size_t radiusIndex; |
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| 72 | int64_t pred_value = 0, pred_err; |
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| 73 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 74 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 75 | size_t totalSampleSize = (r1-1)*(r2-1)/confparams_cpr->sampleDistance; |
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| 76 | for(i=1;i<r1;i++) |
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| 77 | { |
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| 78 | for(j=1;j<r2;j++) |
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| 79 | { |
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| 80 | if((i+j)%confparams_cpr->sampleDistance==0) |
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| 81 | { |
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| 82 | index = i*r2+j; |
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| 83 | pred_value = oriData[index-1] + oriData[index-r2] - oriData[index-r2-1]; |
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| 84 | pred_err = llabs(pred_value - oriData[index]); |
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| 85 | radiusIndex = (uint64_t)((pred_err/realPrecision+1)/2); |
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| 86 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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| 87 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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| 88 | intervals[radiusIndex]++; |
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| 89 | } |
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| 90 | } |
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| 91 | } |
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| 92 | //compute the appropriate number |
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| 93 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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| 94 | size_t sum = 0; |
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| 95 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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| 96 | { |
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| 97 | sum += intervals[i]; |
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| 98 | if(sum>targetCount) |
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| 99 | break; |
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| 100 | } |
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| 101 | if(i>=confparams_cpr->maxRangeRadius) |
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| 102 | i = confparams_cpr->maxRangeRadius-1; |
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| 103 | unsigned int accIntervals = 2*(i+1); |
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| 104 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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| 105 | |
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| 106 | if(powerOf2<32) |
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| 107 | powerOf2 = 32; |
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| 108 | |
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| 109 | free(intervals); |
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| 110 | //printf("confparams_cpr->maxRangeRadius = %d, accIntervals=%d, powerOf2=%d\n", confparams_cpr->maxRangeRadius, accIntervals, powerOf2); |
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| 111 | return powerOf2; |
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| 112 | } |
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| 113 | |
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| 114 | unsigned int optimize_intervals_int8_3D(int8_t *oriData, size_t r1, size_t r2, size_t r3, double realPrecision) |
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| 115 | { |
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| 116 | size_t i,j,k, index; |
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| 117 | size_t radiusIndex; |
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| 118 | size_t r23=r2*r3; |
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| 119 | int64_t pred_value = 0, pred_err; |
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| 120 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 121 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 122 | size_t totalSampleSize = (r1-1)*(r2-1)*(r3-1)/confparams_cpr->sampleDistance; |
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| 123 | for(i=1;i<r1;i++) |
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| 124 | { |
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| 125 | for(j=1;j<r2;j++) |
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| 126 | { |
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| 127 | for(k=1;k<r3;k++) |
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| 128 | { |
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| 129 | if((i+j+k)%confparams_cpr->sampleDistance==0) |
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| 130 | { |
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| 131 | index = i*r23+j*r3+k; |
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| 132 | pred_value = oriData[index-1] + oriData[index-r3] + oriData[index-r23] |
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| 133 | - oriData[index-1-r23] - oriData[index-r3-1] - oriData[index-r3-r23] + oriData[index-r3-r23-1]; |
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| 134 | pred_err = llabs(pred_value - oriData[index]); |
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| 135 | radiusIndex = (pred_err/realPrecision+1)/2; |
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| 136 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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| 137 | { |
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| 138 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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| 139 | //printf("radiusIndex=%d\n", radiusIndex); |
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| 140 | } |
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| 141 | intervals[radiusIndex]++; |
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| 142 | } |
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| 143 | } |
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| 144 | } |
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| 145 | } |
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| 146 | //compute the appropriate number |
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| 147 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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| 148 | size_t sum = 0; |
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| 149 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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| 150 | { |
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| 151 | sum += intervals[i]; |
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| 152 | if(sum>targetCount) |
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| 153 | break; |
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| 154 | } |
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| 155 | if(i>=confparams_cpr->maxRangeRadius) |
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| 156 | i = confparams_cpr->maxRangeRadius-1; |
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| 157 | unsigned int accIntervals = 2*(i+1); |
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| 158 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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| 159 | |
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| 160 | if(powerOf2<32) |
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| 161 | powerOf2 = 32; |
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| 162 | |
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| 163 | free(intervals); |
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| 164 | //printf("targetCount=%d, sum=%d, totalSampleSize=%d, ratio=%f, accIntervals=%d, powerOf2=%d\n", targetCount, sum, totalSampleSize, (double)sum/(double)totalSampleSize, accIntervals, powerOf2); |
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| 165 | return powerOf2; |
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| 166 | } |
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| 167 | |
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| 168 | |
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| 169 | unsigned int optimize_intervals_int8_4D(int8_t *oriData, size_t r1, size_t r2, size_t r3, size_t r4, double realPrecision) |
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| 170 | { |
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| 171 | size_t i,j,k,l, index; |
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| 172 | size_t radiusIndex; |
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| 173 | size_t r234=r2*r3*r4; |
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| 174 | size_t r34=r3*r4; |
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| 175 | int64_t pred_value = 0, pred_err; |
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| 176 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 177 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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| 178 | size_t totalSampleSize = (r1-1)*(r2-1)*(r3-1)*(r4-1)/confparams_cpr->sampleDistance; |
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| 179 | for(i=1;i<r1;i++) |
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| 180 | { |
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| 181 | for(j=1;j<r2;j++) |
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| 182 | { |
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| 183 | for(k=1;k<r3;k++) |
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| 184 | { |
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| 185 | for (l=1;l<r4;l++) |
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| 186 | { |
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| 187 | if((i+j+k+l)%confparams_cpr->sampleDistance==0) |
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| 188 | { |
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| 189 | index = i*r234+j*r34+k*r4+l; |
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| 190 | pred_value = oriData[index-1] + oriData[index-r3] + oriData[index-r34] |
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| 191 | - oriData[index-1-r34] - oriData[index-r4-1] - oriData[index-r4-r34] + oriData[index-r4-r34-1]; |
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| 192 | pred_err = llabs(pred_value - oriData[index]); |
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| 193 | radiusIndex = (uint64_t)((pred_err/realPrecision+1)/2); |
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| 194 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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| 195 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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| 196 | intervals[radiusIndex]++; |
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| 197 | } |
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| 198 | } |
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| 199 | } |
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| 200 | } |
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| 201 | } |
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| 202 | //compute the appropriate number |
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| 203 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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| 204 | size_t sum = 0; |
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| 205 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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| 206 | { |
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| 207 | sum += intervals[i]; |
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| 208 | if(sum>targetCount) |
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| 209 | break; |
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| 210 | } |
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| 211 | if(i>=confparams_cpr->maxRangeRadius) |
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| 212 | i = confparams_cpr->maxRangeRadius-1; |
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| 213 | |
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| 214 | unsigned int accIntervals = 2*(i+1); |
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| 215 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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| 216 | |
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| 217 | if(powerOf2<32) |
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| 218 | powerOf2 = 32; |
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| 219 | |
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| 220 | free(intervals); |
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| 221 | return powerOf2; |
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| 222 | } |
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| 223 | |
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| 224 | TightDataPointStorageI* SZ_compress_int8_1D_MDQ(int8_t *oriData, size_t dataLength, double realPrecision, int64_t valueRangeSize, int64_t minValue) |
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| 225 | { |
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| 226 | unsigned char bytes[8] = {0,0,0,0,0,0,0,0}; |
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| 227 | int byteSize = computeByteSizePerIntValue(valueRangeSize); |
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| 228 | unsigned int quantization_intervals; |
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| 229 | if(exe_params->optQuantMode==1) |
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| 230 | quantization_intervals = optimize_intervals_int8_1D(oriData, dataLength, realPrecision); |
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| 231 | else |
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| 232 | quantization_intervals = exe_params->intvCapacity; |
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| 233 | updateQuantizationInfo(quantization_intervals); |
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| 234 | size_t i; |
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| 235 | |
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| 236 | int* type = (int*) malloc(dataLength*sizeof(int)); |
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| 237 | |
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| 238 | int8_t* spaceFillingValue = oriData; // |
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| 239 | |
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| 240 | DynamicByteArray *exactDataByteArray; |
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| 241 | new_DBA(&exactDataByteArray, DynArrayInitLen); |
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| 242 | |
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| 243 | int64_t last3CmprsData[3] = {0,0,0}; |
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| 244 | |
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| 245 | //add the first data |
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| 246 | type[0] = 0; |
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| 247 | compressInt8Value(spaceFillingValue[0], minValue, byteSize, bytes); |
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| 248 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
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| 249 | listAdd_int(last3CmprsData, spaceFillingValue[0]); |
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| 250 | |
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| 251 | type[1] = 0; |
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| 252 | compressInt8Value(spaceFillingValue[1], minValue, byteSize, bytes); |
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| 253 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
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| 254 | listAdd_int(last3CmprsData, spaceFillingValue[1]); |
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| 255 | //printf("%.30G\n",last3CmprsData[0]); |
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| 256 | |
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| 257 | int state; |
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| 258 | double checkRadius = (exe_params->intvCapacity-1)*realPrecision; |
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| 259 | int64_t curData; |
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| 260 | int64_t pred, predAbsErr; |
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| 261 | double interval = 2*realPrecision; |
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| 262 | |
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| 263 | for(i=2;i<dataLength;i++) |
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| 264 | { |
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| 265 | curData = spaceFillingValue[i]; |
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| 266 | //pred = 2*last3CmprsData[0] - last3CmprsData[1]; |
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| 267 | pred = last3CmprsData[0]; |
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| 268 | predAbsErr = llabs(curData - pred); |
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| 269 | if(predAbsErr<=checkRadius) |
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| 270 | { |
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| 271 | state = (predAbsErr/realPrecision+1)/2; |
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| 272 | if(curData>=pred) |
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| 273 | { |
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| 274 | type[i] = exe_params->intvRadius+state; |
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| 275 | pred = pred + state*interval; |
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| 276 | } |
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| 277 | else //curData<pred |
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| 278 | { |
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| 279 | type[i] = exe_params->intvRadius-state; |
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| 280 | pred = pred - state*interval; |
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| 281 | } |
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| 282 | if(pred>SZ_INT8_MAX) pred = SZ_INT8_MAX; |
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| 283 | if(pred<SZ_INT8_MIN) pred = SZ_INT8_MIN; |
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| 284 | listAdd_int(last3CmprsData, pred); |
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| 285 | continue; |
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| 286 | } |
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| 287 | |
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| 288 | //unpredictable data processing |
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| 289 | type[i] = 0; |
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| 290 | compressInt8Value(curData, minValue, byteSize, bytes); |
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| 291 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
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| 292 | listAdd_int(last3CmprsData, curData); |
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| 293 | }//end of for |
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| 294 | |
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| 295 | size_t exactDataNum = exactDataByteArray->size / byteSize; |
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| 296 | |
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| 297 | TightDataPointStorageI* tdps; |
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| 298 | |
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| 299 | new_TightDataPointStorageI(&tdps, dataLength, exactDataNum, byteSize, |
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| 300 | type, exactDataByteArray->array, exactDataByteArray->size, |
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| 301 | realPrecision, minValue, quantization_intervals, SZ_INT8); |
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| 302 | |
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| 303 | //sdi:Debug |
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| 304 | /* int sum =0; |
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| 305 | for(i=0;i<dataLength;i++) |
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| 306 | if(type[i]==0) sum++; |
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| 307 | printf("opt_quantizations=%d, exactDataNum=%d, sum=%d\n",quantization_intervals, exactDataNum, sum);*/ |
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| 308 | |
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| 309 | //free memory |
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| 310 | free(type); |
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| 311 | free(exactDataByteArray); //exactDataByteArray->array has been released in free_TightDataPointStorageF(tdps); |
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| 312 | |
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| 313 | return tdps; |
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| 314 | } |
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| 315 | |
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| 316 | void SZ_compress_args_int8_StoreOriData(int8_t* oriData, size_t dataLength, TightDataPointStorageI* tdps, |
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| 317 | unsigned char** newByteData, size_t *outSize) |
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| 318 | { |
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| 319 | int intSize=sizeof(int8_t); |
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| 320 | size_t k = 0, i; |
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| 321 | tdps->isLossless = 1; |
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| 322 | size_t totalByteLength = 3 + MetaDataByteLength + exe_params->SZ_SIZE_TYPE + 1 + intSize*dataLength; |
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| 323 | *newByteData = (unsigned char*)malloc(totalByteLength); |
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| 324 | |
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| 325 | unsigned char dsLengthBytes[8]; |
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| 326 | for (i = 0; i < 3; i++)//3 |
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| 327 | (*newByteData)[k++] = versionNumber[i]; |
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| 328 | |
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| 329 | if(exe_params->SZ_SIZE_TYPE==4)//1 |
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| 330 | (*newByteData)[k++] = 16; //00010000 |
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| 331 | else |
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| 332 | (*newByteData)[k++] = 80; //01010000: 01000000 indicates the SZ_SIZE_TYPE=8 |
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| 333 | |
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| 334 | convertSZParamsToBytes(confparams_cpr, &((*newByteData)[k])); |
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| 335 | k = k + MetaDataByteLength; |
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| 336 | |
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| 337 | sizeToBytes(dsLengthBytes,dataLength); //SZ_SIZE_TYPE: 4 or 8 |
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| 338 | for (i = 0; i < exe_params->SZ_SIZE_TYPE; i++) |
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| 339 | (*newByteData)[k++] = dsLengthBytes[i]; |
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| 340 | |
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| 341 | if(sysEndianType==BIG_ENDIAN_SYSTEM) |
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| 342 | memcpy((*newByteData)+4+MetaDataByteLength+exe_params->SZ_SIZE_TYPE, oriData, dataLength*intSize); |
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| 343 | else |
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| 344 | { |
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| 345 | unsigned char* p = (*newByteData)+4+MetaDataByteLength+exe_params->SZ_SIZE_TYPE; |
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| 346 | for(i=0;i<dataLength;i++,p+=intSize) |
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| 347 | *p = oriData[i]; |
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| 348 | } |
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| 349 | *outSize = totalByteLength; |
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| 350 | } |
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| 351 | |
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| 352 | void SZ_compress_args_int8_NoCkRngeNoGzip_1D(unsigned char** newByteData, int8_t *oriData, |
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| 353 | size_t dataLength, double realPrecision, size_t *outSize, int64_t valueRangeSize, int8_t minValue) |
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| 354 | { |
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| 355 | TightDataPointStorageI* tdps = SZ_compress_int8_1D_MDQ(oriData, dataLength, realPrecision, valueRangeSize, minValue); |
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| 356 | //TODO: return bytes.... |
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| 357 | convertTDPStoFlatBytes_int(tdps, newByteData, outSize); |
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| 358 | if(*outSize > dataLength*sizeof(int8_t)) |
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| 359 | SZ_compress_args_int8_StoreOriData(oriData, dataLength+2, tdps, newByteData, outSize); |
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| 360 | free_TightDataPointStorageI(tdps); |
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| 361 | } |
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| 362 | |
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| 363 | TightDataPointStorageI* SZ_compress_int8_2D_MDQ(int8_t *oriData, size_t r1, size_t r2, double realPrecision, int64_t valueRangeSize, int64_t minValue) |
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| 364 | { |
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| 365 | unsigned char bytes[8] = {0,0,0,0,0,0,0,0}; |
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| 366 | int byteSize = computeByteSizePerIntValue(valueRangeSize); |
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| 367 | |
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| 368 | unsigned int quantization_intervals; |
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| 369 | if(exe_params->optQuantMode==1) |
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| 370 | { |
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| 371 | quantization_intervals = optimize_intervals_int8_2D(oriData, r1, r2, realPrecision); |
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| 372 | updateQuantizationInfo(quantization_intervals); |
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| 373 | } |
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| 374 | else |
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| 375 | quantization_intervals = exe_params->intvCapacity; |
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| 376 | size_t i,j; |
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| 377 | int64_t pred1D, pred2D, curValue, tmp; |
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| 378 | int diff = 0.0; |
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| 379 | double itvNum = 0; |
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| 380 | int8_t *P0, *P1; |
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| 381 | |
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| 382 | size_t dataLength = r1*r2; |
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| 383 | |
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| 384 | P0 = (int8_t*)malloc(r2*sizeof(int8_t)); |
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| 385 | memset(P0, 0, r2*sizeof(int8_t)); |
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| 386 | P1 = (int8_t*)malloc(r2*sizeof(int8_t)); |
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| 387 | memset(P1, 0, r2*sizeof(int8_t)); |
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| 388 | |
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| 389 | int* type = (int*) malloc(dataLength*sizeof(int)); |
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| 390 | //type[dataLength]=0; |
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| 391 | |
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| 392 | int8_t* spaceFillingValue = oriData; // |
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| 393 | |
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| 394 | DynamicByteArray *exactDataByteArray; |
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| 395 | new_DBA(&exactDataByteArray, DynArrayInitLen); |
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| 396 | |
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| 397 | type[0] = 0; |
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| 398 | curValue = P1[0] = spaceFillingValue[0]; |
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| 399 | compressInt8Value(curValue, minValue, byteSize, bytes); |
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| 400 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
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| 401 | |
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| 402 | /* Process Row-0 data 1*/ |
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| 403 | pred1D = P1[0]; |
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| 404 | diff = spaceFillingValue[1] - pred1D; |
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| 405 | |
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| 406 | itvNum = llabs(diff)/realPrecision + 1; |
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| 407 | |
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| 408 | if (itvNum < exe_params->intvCapacity) |
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| 409 | { |
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| 410 | if (diff < 0) itvNum = -itvNum; |
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| 411 | type[1] = (int) (itvNum/2) + exe_params->intvRadius; |
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| 412 | tmp = pred1D + 2 * (type[1] - exe_params->intvRadius) * realPrecision; |
---|
| 413 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 414 | P1[1] = tmp; |
---|
| 415 | else if(tmp < SZ_INT8_MIN) |
---|
| 416 | P1[1] = SZ_INT8_MIN; |
---|
| 417 | else |
---|
| 418 | P1[1] = SZ_INT8_MAX; |
---|
| 419 | } |
---|
| 420 | else |
---|
| 421 | { |
---|
| 422 | type[1] = 0; |
---|
| 423 | curValue = P1[1] = spaceFillingValue[1]; |
---|
| 424 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 425 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 426 | } |
---|
| 427 | |
---|
| 428 | /* Process Row-0 data 2 --> data r2-1 */ |
---|
| 429 | for (j = 2; j < r2; j++) |
---|
| 430 | { |
---|
| 431 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
| 432 | diff = spaceFillingValue[j] - pred1D; |
---|
| 433 | |
---|
| 434 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 435 | |
---|
| 436 | if (itvNum < exe_params->intvCapacity) |
---|
| 437 | { |
---|
| 438 | if (diff < 0) itvNum = -itvNum; |
---|
| 439 | type[j] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 440 | tmp = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
| 441 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 442 | P1[j] = tmp; |
---|
| 443 | else if(tmp < SZ_INT8_MIN) |
---|
| 444 | P1[j] = SZ_INT8_MIN; |
---|
| 445 | else |
---|
| 446 | P1[j] = SZ_INT8_MAX; |
---|
| 447 | } |
---|
| 448 | else |
---|
| 449 | { |
---|
| 450 | type[j] = 0; |
---|
| 451 | curValue = P1[j] = spaceFillingValue[j]; |
---|
| 452 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 453 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 454 | } |
---|
| 455 | } |
---|
| 456 | |
---|
| 457 | /* Process Row-1 --> Row-r1-1 */ |
---|
| 458 | size_t index; |
---|
| 459 | for (i = 1; i < r1; i++) |
---|
| 460 | { |
---|
| 461 | /* Process row-i data 0 */ |
---|
| 462 | index = i*r2; |
---|
| 463 | pred1D = P1[0]; |
---|
| 464 | diff = spaceFillingValue[index] - pred1D; |
---|
| 465 | |
---|
| 466 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 467 | |
---|
| 468 | if (itvNum < exe_params->intvCapacity) |
---|
| 469 | { |
---|
| 470 | if (diff < 0) itvNum = -itvNum; |
---|
| 471 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 472 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 473 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 474 | P0[0] = tmp; |
---|
| 475 | else if(tmp < SZ_INT8_MIN) |
---|
| 476 | P0[0] = SZ_INT8_MIN; |
---|
| 477 | else |
---|
| 478 | P0[0] = SZ_INT8_MAX; |
---|
| 479 | } |
---|
| 480 | else |
---|
| 481 | { |
---|
| 482 | type[index] = 0; |
---|
| 483 | curValue = P0[0] = spaceFillingValue[index]; |
---|
| 484 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 485 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 486 | } |
---|
| 487 | |
---|
| 488 | /* Process row-i data 1 --> r2-1*/ |
---|
| 489 | for (j = 1; j < r2; j++) |
---|
| 490 | { |
---|
| 491 | index = i*r2+j; |
---|
| 492 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
| 493 | |
---|
| 494 | diff = spaceFillingValue[index] - pred2D; |
---|
| 495 | |
---|
| 496 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 497 | |
---|
| 498 | if (itvNum < exe_params->intvCapacity) |
---|
| 499 | { |
---|
| 500 | if (diff < 0) itvNum = -itvNum; |
---|
| 501 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 502 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 503 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 504 | P0[j] = tmp; |
---|
| 505 | else if(tmp < SZ_INT8_MIN) |
---|
| 506 | P0[j] = SZ_INT8_MIN; |
---|
| 507 | else |
---|
| 508 | P0[j] = SZ_INT8_MAX; |
---|
| 509 | } |
---|
| 510 | else |
---|
| 511 | { |
---|
| 512 | type[index] = 0; |
---|
| 513 | curValue = P0[j] = spaceFillingValue[index]; |
---|
| 514 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 515 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 516 | } |
---|
| 517 | } |
---|
| 518 | |
---|
| 519 | int8_t *Pt; |
---|
| 520 | Pt = P1; |
---|
| 521 | P1 = P0; |
---|
| 522 | P0 = Pt; |
---|
| 523 | } |
---|
| 524 | |
---|
| 525 | if(r2!=1) |
---|
| 526 | free(P0); |
---|
| 527 | free(P1); |
---|
| 528 | |
---|
| 529 | size_t exactDataNum = exactDataByteArray->size; |
---|
| 530 | |
---|
| 531 | TightDataPointStorageI* tdps; |
---|
| 532 | |
---|
| 533 | new_TightDataPointStorageI(&tdps, dataLength, exactDataNum, byteSize, |
---|
| 534 | type, exactDataByteArray->array, exactDataByteArray->size, |
---|
| 535 | realPrecision, minValue, quantization_intervals, SZ_INT8); |
---|
| 536 | |
---|
| 537 | //free memory |
---|
| 538 | free(type); |
---|
| 539 | free(exactDataByteArray); //exactDataByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
| 540 | |
---|
| 541 | return tdps; |
---|
| 542 | } |
---|
| 543 | |
---|
| 544 | /** |
---|
| 545 | * |
---|
| 546 | * Note: @r1 is high dimension |
---|
| 547 | * @r2 is low dimension |
---|
| 548 | * */ |
---|
| 549 | void SZ_compress_args_int8_NoCkRngeNoGzip_2D(unsigned char** newByteData, int8_t *oriData, size_t r1, size_t r2, double realPrecision, size_t *outSize, |
---|
| 550 | int64_t valueRangeSize, int8_t minValue) |
---|
| 551 | { |
---|
| 552 | TightDataPointStorageI* tdps = SZ_compress_int8_2D_MDQ(oriData, r1, r2, realPrecision, valueRangeSize, minValue); |
---|
| 553 | |
---|
| 554 | convertTDPStoFlatBytes_int(tdps, newByteData, outSize); |
---|
| 555 | |
---|
| 556 | size_t dataLength = r1*r2; |
---|
| 557 | if(*outSize>dataLength*sizeof(int8_t)) |
---|
| 558 | SZ_compress_args_int8_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
| 559 | |
---|
| 560 | free_TightDataPointStorageI(tdps); |
---|
| 561 | } |
---|
| 562 | |
---|
| 563 | TightDataPointStorageI* SZ_compress_int8_3D_MDQ(int8_t *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, int64_t valueRangeSize, int64_t minValue) |
---|
| 564 | { |
---|
| 565 | unsigned char bytes[8] = {0,0,0,0,0,0,0,0}; |
---|
| 566 | int byteSize = computeByteSizePerIntValue(valueRangeSize); |
---|
| 567 | |
---|
| 568 | unsigned int quantization_intervals; |
---|
| 569 | if(exe_params->optQuantMode==1) |
---|
| 570 | { |
---|
| 571 | quantization_intervals = optimize_intervals_int8_3D(oriData, r1, r2, r3, realPrecision); |
---|
| 572 | updateQuantizationInfo(quantization_intervals); |
---|
| 573 | } |
---|
| 574 | else |
---|
| 575 | quantization_intervals = exe_params->intvCapacity; |
---|
| 576 | size_t i,j,k; |
---|
| 577 | int64_t pred1D, pred2D, pred3D, curValue, tmp; |
---|
| 578 | int diff = 0.0; |
---|
| 579 | double itvNum = 0; |
---|
| 580 | int8_t *P0, *P1; |
---|
| 581 | |
---|
| 582 | size_t dataLength = r1*r2*r3; |
---|
| 583 | |
---|
| 584 | size_t r23 = r2*r3; |
---|
| 585 | P0 = (int8_t*)malloc(r23*sizeof(int8_t)); |
---|
| 586 | P1 = (int8_t*)malloc(r23*sizeof(int8_t)); |
---|
| 587 | |
---|
| 588 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
| 589 | |
---|
| 590 | int8_t* spaceFillingValue = oriData; // |
---|
| 591 | |
---|
| 592 | DynamicByteArray *exactDataByteArray; |
---|
| 593 | new_DBA(&exactDataByteArray, DynArrayInitLen); |
---|
| 594 | |
---|
| 595 | type[0] = 0; |
---|
| 596 | P1[0] = spaceFillingValue[0]; |
---|
| 597 | compressInt8Value(spaceFillingValue[0], minValue, byteSize, bytes); |
---|
| 598 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 599 | |
---|
| 600 | /* Process Row-0 data 1*/ |
---|
| 601 | pred1D = P1[0]; |
---|
| 602 | diff = spaceFillingValue[1] - pred1D; |
---|
| 603 | |
---|
| 604 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 605 | |
---|
| 606 | if (itvNum < exe_params->intvCapacity) |
---|
| 607 | { |
---|
| 608 | if (diff < 0) itvNum = -itvNum; |
---|
| 609 | type[1] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 610 | tmp = pred1D + 2 * (type[1] - exe_params->intvRadius) * realPrecision; |
---|
| 611 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 612 | P1[1] = tmp; |
---|
| 613 | else if(tmp < SZ_INT8_MIN) |
---|
| 614 | P1[1] = SZ_INT8_MIN; |
---|
| 615 | else |
---|
| 616 | P1[1] = SZ_INT8_MAX; |
---|
| 617 | } |
---|
| 618 | else |
---|
| 619 | { |
---|
| 620 | type[1] = 0; |
---|
| 621 | curValue = P1[1] = spaceFillingValue[1]; |
---|
| 622 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 623 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 624 | } |
---|
| 625 | |
---|
| 626 | /* Process Row-0 data 2 --> data r3-1 */ |
---|
| 627 | for (j = 2; j < r3; j++) |
---|
| 628 | { |
---|
| 629 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
| 630 | diff = spaceFillingValue[j] - pred1D; |
---|
| 631 | |
---|
| 632 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 633 | |
---|
| 634 | if (itvNum < exe_params->intvCapacity) |
---|
| 635 | { |
---|
| 636 | if (diff < 0) itvNum = -itvNum; |
---|
| 637 | type[j] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 638 | tmp = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
| 639 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 640 | P1[j] = tmp; |
---|
| 641 | else if(tmp < SZ_INT8_MIN) |
---|
| 642 | P1[j] = SZ_INT8_MIN; |
---|
| 643 | else |
---|
| 644 | P1[j] = SZ_INT8_MAX; |
---|
| 645 | } |
---|
| 646 | else |
---|
| 647 | { |
---|
| 648 | type[j] = 0; |
---|
| 649 | curValue = P1[j] = spaceFillingValue[j]; |
---|
| 650 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 651 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 652 | } |
---|
| 653 | } |
---|
| 654 | |
---|
| 655 | /* Process Row-1 --> Row-r2-1 */ |
---|
| 656 | size_t index; |
---|
| 657 | for (i = 1; i < r2; i++) |
---|
| 658 | { |
---|
| 659 | /* Process row-i data 0 */ |
---|
| 660 | index = i*r3; |
---|
| 661 | pred1D = P1[index-r3]; |
---|
| 662 | diff = spaceFillingValue[index] - pred1D; |
---|
| 663 | |
---|
| 664 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 665 | |
---|
| 666 | if (itvNum < exe_params->intvCapacity) |
---|
| 667 | { |
---|
| 668 | if (diff < 0) itvNum = -itvNum; |
---|
| 669 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 670 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 671 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 672 | P1[index] = tmp; |
---|
| 673 | else if(tmp < SZ_INT8_MIN) |
---|
| 674 | P1[index] = SZ_INT8_MIN; |
---|
| 675 | else |
---|
| 676 | P1[index] = SZ_INT8_MAX; |
---|
| 677 | } |
---|
| 678 | else |
---|
| 679 | { |
---|
| 680 | type[index] = 0; |
---|
| 681 | curValue = P1[index] = spaceFillingValue[index]; |
---|
| 682 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 683 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 684 | } |
---|
| 685 | |
---|
| 686 | /* Process row-i data 1 --> data r3-1*/ |
---|
| 687 | for (j = 1; j < r3; j++) |
---|
| 688 | { |
---|
| 689 | index = i*r3+j; |
---|
| 690 | pred2D = P1[index-1] + P1[index-r3] - P1[index-r3-1]; |
---|
| 691 | |
---|
| 692 | diff = spaceFillingValue[index] - pred2D; |
---|
| 693 | |
---|
| 694 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 695 | |
---|
| 696 | if (itvNum < exe_params->intvCapacity) |
---|
| 697 | { |
---|
| 698 | if (diff < 0) itvNum = -itvNum; |
---|
| 699 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 700 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 701 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 702 | P1[index] = tmp; |
---|
| 703 | else if(tmp < SZ_INT8_MIN) |
---|
| 704 | P1[index] = SZ_INT8_MIN; |
---|
| 705 | else |
---|
| 706 | P1[index] = SZ_INT8_MAX; |
---|
| 707 | } |
---|
| 708 | else |
---|
| 709 | { |
---|
| 710 | type[index] = 0; |
---|
| 711 | curValue = P1[index] = spaceFillingValue[index]; |
---|
| 712 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 713 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 714 | } |
---|
| 715 | } |
---|
| 716 | } |
---|
| 717 | |
---|
| 718 | |
---|
| 719 | /////////////////////////// Process layer-1 --> layer-r1-1 /////////////////////////// |
---|
| 720 | |
---|
| 721 | for (k = 1; k < r1; k++) |
---|
| 722 | { |
---|
| 723 | /* Process Row-0 data 0*/ |
---|
| 724 | index = k*r23; |
---|
| 725 | pred1D = P1[0]; |
---|
| 726 | diff = spaceFillingValue[index] - pred1D; |
---|
| 727 | |
---|
| 728 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 729 | |
---|
| 730 | if (itvNum < exe_params->intvCapacity) |
---|
| 731 | { |
---|
| 732 | if (diff < 0) itvNum = -itvNum; |
---|
| 733 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 734 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 735 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 736 | P0[0] = tmp; |
---|
| 737 | else if(tmp < SZ_INT8_MIN) |
---|
| 738 | P0[0] = SZ_INT8_MIN; |
---|
| 739 | else |
---|
| 740 | P0[0] = SZ_INT8_MAX; |
---|
| 741 | } |
---|
| 742 | else |
---|
| 743 | { |
---|
| 744 | type[index] = 0; |
---|
| 745 | curValue = P0[0] = spaceFillingValue[index]; |
---|
| 746 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 747 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 748 | } |
---|
| 749 | |
---|
| 750 | |
---|
| 751 | /* Process Row-0 data 1 --> data r3-1 */ |
---|
| 752 | for (j = 1; j < r3; j++) |
---|
| 753 | { |
---|
| 754 | //index = k*r2*r3+j; |
---|
| 755 | index ++; |
---|
| 756 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
| 757 | diff = spaceFillingValue[index] - pred2D; |
---|
| 758 | |
---|
| 759 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 760 | |
---|
| 761 | if (itvNum < exe_params->intvCapacity) |
---|
| 762 | { |
---|
| 763 | if (diff < 0) itvNum = -itvNum; |
---|
| 764 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 765 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 766 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 767 | P0[j] = tmp; |
---|
| 768 | else if(tmp < SZ_INT8_MIN) |
---|
| 769 | P0[j] = SZ_INT8_MIN; |
---|
| 770 | else |
---|
| 771 | P0[j] = SZ_INT8_MAX; |
---|
| 772 | } |
---|
| 773 | else |
---|
| 774 | { |
---|
| 775 | type[index] = 0; |
---|
| 776 | curValue = P0[j] = spaceFillingValue[index]; |
---|
| 777 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 778 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 779 | } |
---|
| 780 | } |
---|
| 781 | |
---|
| 782 | /* Process Row-1 --> Row-r2-1 */ |
---|
| 783 | size_t index2D; |
---|
| 784 | for (i = 1; i < r2; i++) |
---|
| 785 | { |
---|
| 786 | /* Process Row-i data 0 */ |
---|
| 787 | index = k*r23 + i*r3; |
---|
| 788 | index2D = i*r3; |
---|
| 789 | pred2D = P0[index2D-r3] + P1[index2D] - P1[index2D-r3]; |
---|
| 790 | diff = spaceFillingValue[index] - pred2D; |
---|
| 791 | |
---|
| 792 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 793 | |
---|
| 794 | if (itvNum < exe_params->intvCapacity) |
---|
| 795 | { |
---|
| 796 | if (diff < 0) itvNum = -itvNum; |
---|
| 797 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 798 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 799 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 800 | P0[index2D] = tmp; |
---|
| 801 | else if(tmp < SZ_INT8_MIN) |
---|
| 802 | P0[index2D] = SZ_INT8_MIN; |
---|
| 803 | else |
---|
| 804 | P0[index2D] = SZ_INT8_MAX; |
---|
| 805 | } |
---|
| 806 | else |
---|
| 807 | { |
---|
| 808 | type[index] = 0; |
---|
| 809 | curValue = P0[index2D] = spaceFillingValue[index]; |
---|
| 810 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 811 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | /* Process Row-i data 1 --> data r3-1 */ |
---|
| 815 | for (j = 1; j < r3; j++) |
---|
| 816 | { |
---|
| 817 | // if(k==63&&i==43&&j==27) |
---|
| 818 | // printf("i=%d\n", i); |
---|
| 819 | //index = k*r2*r3 + i*r3 + j; |
---|
| 820 | index ++; |
---|
| 821 | index2D = i*r3 + j; |
---|
| 822 | pred3D = P0[index2D-1] + P0[index2D-r3]+ P1[index2D] - P0[index2D-r3-1] - P1[index2D-r3] - P1[index2D-1] + P1[index2D-r3-1]; |
---|
| 823 | diff = spaceFillingValue[index] - pred3D; |
---|
| 824 | |
---|
| 825 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 826 | |
---|
| 827 | if (itvNum < exe_params->intvCapacity) |
---|
| 828 | { |
---|
| 829 | if (diff < 0) itvNum = -itvNum; |
---|
| 830 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 831 | tmp = pred3D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 832 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 833 | P0[index2D] = tmp; |
---|
| 834 | else if(tmp < SZ_INT8_MIN) |
---|
| 835 | P0[index2D] = SZ_INT8_MIN; |
---|
| 836 | else |
---|
| 837 | P0[index2D] = SZ_INT8_MAX; |
---|
| 838 | } |
---|
| 839 | else |
---|
| 840 | { |
---|
| 841 | type[index] = 0; |
---|
| 842 | curValue = P0[index2D] = spaceFillingValue[index]; |
---|
| 843 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 844 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 845 | } |
---|
| 846 | } |
---|
| 847 | } |
---|
| 848 | |
---|
| 849 | int8_t *Pt; |
---|
| 850 | Pt = P1; |
---|
| 851 | P1 = P0; |
---|
| 852 | P0 = Pt; |
---|
| 853 | } |
---|
| 854 | if(r23!=1) |
---|
| 855 | free(P0); |
---|
| 856 | free(P1); |
---|
| 857 | |
---|
| 858 | size_t exactDataNum = exactDataByteArray->size; |
---|
| 859 | |
---|
| 860 | TightDataPointStorageI* tdps; |
---|
| 861 | |
---|
| 862 | new_TightDataPointStorageI(&tdps, dataLength, exactDataNum, byteSize, |
---|
| 863 | type, exactDataByteArray->array, exactDataByteArray->size, |
---|
| 864 | realPrecision, minValue, quantization_intervals, SZ_INT8); |
---|
| 865 | |
---|
| 866 | //free memory |
---|
| 867 | free(type); |
---|
| 868 | free(exactDataByteArray); //exactDataByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
| 869 | |
---|
| 870 | return tdps; |
---|
| 871 | } |
---|
| 872 | |
---|
| 873 | |
---|
| 874 | void SZ_compress_args_int8_NoCkRngeNoGzip_3D(unsigned char** newByteData, int8_t *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, size_t *outSize, |
---|
| 875 | int64_t valueRangeSize, int64_t minValue) |
---|
| 876 | { |
---|
| 877 | TightDataPointStorageI* tdps = SZ_compress_int8_3D_MDQ(oriData, r1, r2, r3, realPrecision, valueRangeSize, minValue); |
---|
| 878 | |
---|
| 879 | convertTDPStoFlatBytes_int(tdps, newByteData, outSize); |
---|
| 880 | |
---|
| 881 | size_t dataLength = r1*r2*r3; |
---|
| 882 | if(*outSize>dataLength*sizeof(int8_t)) |
---|
| 883 | SZ_compress_args_int8_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
| 884 | |
---|
| 885 | free_TightDataPointStorageI(tdps); |
---|
| 886 | } |
---|
| 887 | |
---|
| 888 | |
---|
| 889 | TightDataPointStorageI* SZ_compress_int8_4D_MDQ(int8_t *oriData, size_t r1, size_t r2, size_t r3, size_t r4, double realPrecision, int64_t valueRangeSize, int64_t minValue) |
---|
| 890 | { |
---|
| 891 | unsigned char bytes[8] = {0,0,0,0,0,0,0,0}; |
---|
| 892 | int byteSize = computeByteSizePerIntValue(valueRangeSize); |
---|
| 893 | |
---|
| 894 | unsigned int quantization_intervals; |
---|
| 895 | if(exe_params->optQuantMode==1) |
---|
| 896 | { |
---|
| 897 | quantization_intervals = optimize_intervals_int8_4D(oriData, r1, r2, r3, r4, realPrecision); |
---|
| 898 | updateQuantizationInfo(quantization_intervals); |
---|
| 899 | } |
---|
| 900 | else |
---|
| 901 | quantization_intervals = exe_params->intvCapacity; |
---|
| 902 | size_t i,j,k; |
---|
| 903 | int64_t pred1D, pred2D, pred3D, curValue, tmp; |
---|
| 904 | int diff = 0.0; |
---|
| 905 | double itvNum = 0; |
---|
| 906 | int8_t *P0, *P1; |
---|
| 907 | |
---|
| 908 | size_t dataLength = r1*r2*r3*r4; |
---|
| 909 | |
---|
| 910 | size_t r234 = r2*r3*r4; |
---|
| 911 | size_t r34 = r3*r4; |
---|
| 912 | |
---|
| 913 | P0 = (int8_t*)malloc(r34*sizeof(int8_t)); |
---|
| 914 | P1 = (int8_t*)malloc(r34*sizeof(int8_t)); |
---|
| 915 | |
---|
| 916 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
| 917 | |
---|
| 918 | int8_t* spaceFillingValue = oriData; // |
---|
| 919 | |
---|
| 920 | DynamicByteArray *exactDataByteArray; |
---|
| 921 | new_DBA(&exactDataByteArray, DynArrayInitLen); |
---|
| 922 | |
---|
| 923 | size_t l; |
---|
| 924 | for (l = 0; l < r1; l++) |
---|
| 925 | { |
---|
| 926 | |
---|
| 927 | /////////////////////////// Process layer-0 /////////////////////////// |
---|
| 928 | /* Process Row-0 data 0*/ |
---|
| 929 | size_t index = l*r234; |
---|
| 930 | size_t index2D = 0; |
---|
| 931 | |
---|
| 932 | type[index] = 0; |
---|
| 933 | curValue = P1[index2D] = spaceFillingValue[index]; |
---|
| 934 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 935 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 936 | |
---|
| 937 | /* Process Row-0 data 1*/ |
---|
| 938 | index = l*r234+1; |
---|
| 939 | index2D = 1; |
---|
| 940 | |
---|
| 941 | pred1D = P1[index2D-1]; |
---|
| 942 | diff = curValue - pred1D; |
---|
| 943 | |
---|
| 944 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 945 | |
---|
| 946 | if (itvNum < exe_params->intvCapacity) |
---|
| 947 | { |
---|
| 948 | if (diff < 0) itvNum = -itvNum; |
---|
| 949 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 950 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 951 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 952 | P1[index2D] = tmp; |
---|
| 953 | else if(tmp < SZ_INT8_MIN) |
---|
| 954 | P1[index2D] = SZ_INT8_MIN; |
---|
| 955 | else |
---|
| 956 | P1[index2D] = SZ_INT8_MAX; |
---|
| 957 | } |
---|
| 958 | else |
---|
| 959 | { |
---|
| 960 | type[index] = 0; |
---|
| 961 | |
---|
| 962 | curValue = P1[index2D] = spaceFillingValue[0]; |
---|
| 963 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 964 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 965 | } |
---|
| 966 | |
---|
| 967 | /* Process Row-0 data 2 --> data r4-1 */ |
---|
| 968 | for (j = 2; j < r4; j++) |
---|
| 969 | { |
---|
| 970 | index = l*r234+j; |
---|
| 971 | index2D = j; |
---|
| 972 | |
---|
| 973 | pred1D = 2*P1[index2D-1] - P1[index2D-2]; |
---|
| 974 | diff = spaceFillingValue[index] - pred1D; |
---|
| 975 | |
---|
| 976 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 977 | |
---|
| 978 | if (itvNum < exe_params->intvCapacity) |
---|
| 979 | { |
---|
| 980 | if (diff < 0) itvNum = -itvNum; |
---|
| 981 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 982 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 983 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 984 | P1[index2D] = tmp; |
---|
| 985 | else if(tmp < SZ_INT8_MIN) |
---|
| 986 | P1[index2D] = SZ_INT8_MIN; |
---|
| 987 | else |
---|
| 988 | P1[index2D] = SZ_INT8_MAX; |
---|
| 989 | } |
---|
| 990 | else |
---|
| 991 | { |
---|
| 992 | type[index] = 0; |
---|
| 993 | |
---|
| 994 | curValue = P1[index2D] = spaceFillingValue[0]; |
---|
| 995 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 996 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 997 | } |
---|
| 998 | } |
---|
| 999 | |
---|
| 1000 | /* Process Row-1 --> Row-r3-1 */ |
---|
| 1001 | for (i = 1; i < r3; i++) |
---|
| 1002 | { |
---|
| 1003 | /* Process row-i data 0 */ |
---|
| 1004 | index = l*r234+i*r4; |
---|
| 1005 | index2D = i*r4; |
---|
| 1006 | |
---|
| 1007 | pred1D = P1[index2D-r4]; |
---|
| 1008 | diff = spaceFillingValue[index] - pred1D; |
---|
| 1009 | |
---|
| 1010 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 1011 | |
---|
| 1012 | if (itvNum < exe_params->intvCapacity) |
---|
| 1013 | { |
---|
| 1014 | if (diff < 0) itvNum = -itvNum; |
---|
| 1015 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 1016 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 1017 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 1018 | P1[index2D] = tmp; |
---|
| 1019 | else if(tmp < SZ_INT8_MIN) |
---|
| 1020 | P1[index2D] = SZ_INT8_MIN; |
---|
| 1021 | else |
---|
| 1022 | P1[index2D] = SZ_INT8_MAX; |
---|
| 1023 | } |
---|
| 1024 | else |
---|
| 1025 | { |
---|
| 1026 | type[index] = 0; |
---|
| 1027 | |
---|
| 1028 | curValue = P1[index2D] = spaceFillingValue[0]; |
---|
| 1029 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 1030 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 1031 | } |
---|
| 1032 | |
---|
| 1033 | /* Process row-i data 1 --> data r4-1*/ |
---|
| 1034 | for (j = 1; j < r4; j++) |
---|
| 1035 | { |
---|
| 1036 | index = l*r234+i*r4+j; |
---|
| 1037 | index2D = i*r4+j; |
---|
| 1038 | |
---|
| 1039 | pred2D = P1[index2D-1] + P1[index2D-r4] - P1[index2D-r4-1]; |
---|
| 1040 | |
---|
| 1041 | diff = spaceFillingValue[index] - pred2D; |
---|
| 1042 | |
---|
| 1043 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 1044 | |
---|
| 1045 | if (itvNum < exe_params->intvCapacity) |
---|
| 1046 | { |
---|
| 1047 | if (diff < 0) itvNum = -itvNum; |
---|
| 1048 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 1049 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 1050 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 1051 | P1[index2D] = tmp; |
---|
| 1052 | else if(tmp < SZ_INT8_MIN) |
---|
| 1053 | P1[index2D] = SZ_INT8_MIN; |
---|
| 1054 | else |
---|
| 1055 | P1[index2D] = SZ_INT8_MAX; |
---|
| 1056 | } |
---|
| 1057 | else |
---|
| 1058 | { |
---|
| 1059 | type[index] = 0; |
---|
| 1060 | |
---|
| 1061 | curValue = P1[index2D] = spaceFillingValue[0]; |
---|
| 1062 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 1063 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 1064 | } |
---|
| 1065 | } |
---|
| 1066 | } |
---|
| 1067 | |
---|
| 1068 | |
---|
| 1069 | /////////////////////////// Process layer-1 --> layer-r2-1 /////////////////////////// |
---|
| 1070 | |
---|
| 1071 | for (k = 1; k < r2; k++) |
---|
| 1072 | { |
---|
| 1073 | /* Process Row-0 data 0*/ |
---|
| 1074 | index = l*r234+k*r34; |
---|
| 1075 | index2D = 0; |
---|
| 1076 | |
---|
| 1077 | pred1D = P1[index2D]; |
---|
| 1078 | diff = spaceFillingValue[index] - pred1D; |
---|
| 1079 | |
---|
| 1080 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 1081 | |
---|
| 1082 | if (itvNum < exe_params->intvCapacity) |
---|
| 1083 | { |
---|
| 1084 | if (diff < 0) itvNum = -itvNum; |
---|
| 1085 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 1086 | tmp = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 1087 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 1088 | P0[index2D] = tmp; |
---|
| 1089 | else if(tmp < SZ_INT8_MIN) |
---|
| 1090 | P0[index2D] = SZ_INT8_MIN; |
---|
| 1091 | else |
---|
| 1092 | P0[index2D] = SZ_INT8_MAX; |
---|
| 1093 | } |
---|
| 1094 | else |
---|
| 1095 | { |
---|
| 1096 | type[index] = 0; |
---|
| 1097 | |
---|
| 1098 | curValue = P0[index2D] = spaceFillingValue[0]; |
---|
| 1099 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 1100 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 1101 | } |
---|
| 1102 | |
---|
| 1103 | /* Process Row-0 data 1 --> data r4-1 */ |
---|
| 1104 | for (j = 1; j < r4; j++) |
---|
| 1105 | { |
---|
| 1106 | index = l*r234+k*r34+j; |
---|
| 1107 | index2D = j; |
---|
| 1108 | |
---|
| 1109 | pred2D = P0[index2D-1] + P1[index2D] - P1[index2D-1]; |
---|
| 1110 | diff = spaceFillingValue[index] - pred2D; |
---|
| 1111 | |
---|
| 1112 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 1113 | |
---|
| 1114 | if (itvNum < exe_params->intvCapacity) |
---|
| 1115 | { |
---|
| 1116 | if (diff < 0) itvNum = -itvNum; |
---|
| 1117 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 1118 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 1119 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 1120 | P0[index2D] = tmp; |
---|
| 1121 | else if(tmp < SZ_INT8_MIN) |
---|
| 1122 | P0[index2D] = SZ_INT8_MIN; |
---|
| 1123 | else |
---|
| 1124 | P0[index2D] = SZ_INT8_MAX; |
---|
| 1125 | } |
---|
| 1126 | else |
---|
| 1127 | { |
---|
| 1128 | type[index] = 0; |
---|
| 1129 | |
---|
| 1130 | curValue = P0[index2D] = spaceFillingValue[0]; |
---|
| 1131 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 1132 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 1133 | } |
---|
| 1134 | } |
---|
| 1135 | |
---|
| 1136 | /* Process Row-1 --> Row-r3-1 */ |
---|
| 1137 | for (i = 1; i < r3; i++) |
---|
| 1138 | { |
---|
| 1139 | /* Process Row-i data 0 */ |
---|
| 1140 | index = l*r234+k*r34+i*r4; |
---|
| 1141 | index2D = i*r4; |
---|
| 1142 | |
---|
| 1143 | pred2D = P0[index2D-r4] + P1[index2D] - P1[index2D-r4]; |
---|
| 1144 | diff = spaceFillingValue[index] - pred2D; |
---|
| 1145 | |
---|
| 1146 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 1147 | |
---|
| 1148 | if (itvNum < exe_params->intvCapacity) |
---|
| 1149 | { |
---|
| 1150 | if (diff < 0) itvNum = -itvNum; |
---|
| 1151 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 1152 | tmp = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 1153 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 1154 | P0[index2D] = tmp; |
---|
| 1155 | else if(tmp < SZ_INT8_MIN) |
---|
| 1156 | P0[index2D] = SZ_INT8_MIN; |
---|
| 1157 | else |
---|
| 1158 | P0[index2D] = SZ_INT8_MAX; |
---|
| 1159 | } |
---|
| 1160 | else |
---|
| 1161 | { |
---|
| 1162 | type[index] = 0; |
---|
| 1163 | |
---|
| 1164 | curValue = P0[index2D] = spaceFillingValue[0]; |
---|
| 1165 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 1166 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 1167 | } |
---|
| 1168 | |
---|
| 1169 | /* Process Row-i data 1 --> data r4-1 */ |
---|
| 1170 | for (j = 1; j < r4; j++) |
---|
| 1171 | { |
---|
| 1172 | index = l*r234+k*r34+i*r4+j; |
---|
| 1173 | index2D = i*r4+j; |
---|
| 1174 | |
---|
| 1175 | pred3D = P0[index2D-1] + P0[index2D-r4]+ P1[index2D] - P0[index2D-r4-1] - P1[index2D-r4] - P1[index2D-1] + P1[index2D-r4-1]; |
---|
| 1176 | diff = spaceFillingValue[index] - pred3D; |
---|
| 1177 | |
---|
| 1178 | |
---|
| 1179 | itvNum = llabs(diff)/realPrecision + 1; |
---|
| 1180 | |
---|
| 1181 | if (itvNum < exe_params->intvCapacity) |
---|
| 1182 | { |
---|
| 1183 | if (diff < 0) itvNum = -itvNum; |
---|
| 1184 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
| 1185 | tmp = pred3D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
| 1186 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
---|
| 1187 | P0[index2D] = tmp; |
---|
| 1188 | else if(tmp < SZ_INT8_MIN) |
---|
| 1189 | P0[index2D] = SZ_INT8_MIN; |
---|
| 1190 | else |
---|
| 1191 | P0[index2D] = SZ_INT8_MAX; |
---|
| 1192 | } |
---|
| 1193 | else |
---|
| 1194 | { |
---|
| 1195 | type[index] = 0; |
---|
| 1196 | |
---|
| 1197 | curValue = P0[index2D] = spaceFillingValue[0]; |
---|
| 1198 | compressInt8Value(curValue, minValue, byteSize, bytes); |
---|
| 1199 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
---|
| 1200 | } |
---|
| 1201 | } |
---|
| 1202 | } |
---|
| 1203 | |
---|
| 1204 | int8_t *Pt; |
---|
| 1205 | Pt = P1; |
---|
| 1206 | P1 = P0; |
---|
| 1207 | P0 = Pt; |
---|
| 1208 | } |
---|
| 1209 | } |
---|
| 1210 | |
---|
| 1211 | free(P0); |
---|
| 1212 | free(P1); |
---|
| 1213 | |
---|
| 1214 | size_t exactDataNum = exactDataByteArray->size; |
---|
| 1215 | |
---|
| 1216 | TightDataPointStorageI* tdps; |
---|
| 1217 | |
---|
| 1218 | new_TightDataPointStorageI(&tdps, dataLength, exactDataNum, byteSize, |
---|
| 1219 | type, exactDataByteArray->array, exactDataByteArray->size, |
---|
| 1220 | realPrecision, minValue, quantization_intervals, SZ_INT8); |
---|
| 1221 | |
---|
| 1222 | //free memory |
---|
| 1223 | free(type); |
---|
| 1224 | free(exactDataByteArray); //exactDataByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
| 1225 | |
---|
| 1226 | return tdps; |
---|
| 1227 | } |
---|
| 1228 | |
---|
| 1229 | void SZ_compress_args_int8_NoCkRngeNoGzip_4D(unsigned char** newByteData, int8_t *oriData, size_t r1, size_t r2, size_t r3, size_t r4, double realPrecision, |
---|
| 1230 | size_t *outSize, int64_t valueRangeSize, int64_t minValue) |
---|
| 1231 | { |
---|
| 1232 | TightDataPointStorageI* tdps = SZ_compress_int8_4D_MDQ(oriData, r1, r2, r3, r4, realPrecision, valueRangeSize, minValue); |
---|
| 1233 | |
---|
| 1234 | convertTDPStoFlatBytes_int(tdps, newByteData, outSize); |
---|
| 1235 | |
---|
| 1236 | size_t dataLength = r1*r2*r3*r4; |
---|
| 1237 | if(*outSize>dataLength*sizeof(int8_t)) |
---|
| 1238 | SZ_compress_args_int8_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
| 1239 | |
---|
| 1240 | free_TightDataPointStorageI(tdps); |
---|
| 1241 | } |
---|
| 1242 | |
---|
| 1243 | void SZ_compress_args_int8_withinRange(unsigned char** newByteData, int8_t *oriData, size_t dataLength, size_t *outSize) |
---|
| 1244 | { |
---|
| 1245 | TightDataPointStorageI* tdps = (TightDataPointStorageI*) malloc(sizeof(TightDataPointStorageI)); |
---|
| 1246 | tdps->typeArray = NULL; |
---|
| 1247 | |
---|
| 1248 | tdps->allSameData = 1; |
---|
| 1249 | tdps->dataSeriesLength = dataLength; |
---|
| 1250 | tdps->exactDataBytes = (unsigned char*)malloc(sizeof(unsigned char)); |
---|
| 1251 | tdps->isLossless = 0; |
---|
| 1252 | //tdps->exactByteSize = 4; |
---|
| 1253 | tdps->exactDataNum = 1; |
---|
| 1254 | tdps->exactDataBytes_size = 1; |
---|
| 1255 | |
---|
| 1256 | int8_t value = oriData[0]; |
---|
| 1257 | //intToBytes_bigEndian(tdps->exactDataBytes, value); |
---|
| 1258 | memcpy(tdps->exactDataBytes, &value, 1); |
---|
| 1259 | |
---|
| 1260 | size_t tmpOutSize; |
---|
| 1261 | convertTDPStoFlatBytes_int(tdps, newByteData, &tmpOutSize); |
---|
| 1262 | |
---|
| 1263 | *outSize = tmpOutSize;//3+1+sizeof(int8_t)+SZ_SIZE_TYPE; //8==3+1+4(int8_size) |
---|
| 1264 | free_TightDataPointStorageI(tdps); |
---|
| 1265 | } |
---|
| 1266 | |
---|
| 1267 | int SZ_compress_args_int8_wRngeNoGzip(unsigned char** newByteData, int8_t *oriData, |
---|
| 1268 | size_t r5, size_t r4, size_t r3, size_t r2, size_t r1, size_t *outSize, |
---|
| 1269 | int errBoundMode, double absErr_Bound, double relBoundRatio) |
---|
| 1270 | { |
---|
| 1271 | int status = SZ_SCES; |
---|
| 1272 | size_t dataLength = computeDataLength(r5,r4,r3,r2,r1); |
---|
| 1273 | int64_t valueRangeSize = 0; |
---|
| 1274 | |
---|
| 1275 | int8_t minValue = computeRangeSize_int(oriData, SZ_INT8, dataLength, &valueRangeSize); |
---|
| 1276 | double realPrecision = getRealPrecision_int(valueRangeSize, errBoundMode, absErr_Bound, relBoundRatio, &status); |
---|
| 1277 | |
---|
| 1278 | if(valueRangeSize <= realPrecision) |
---|
| 1279 | { |
---|
| 1280 | SZ_compress_args_int8_withinRange(newByteData, oriData, dataLength, outSize); |
---|
| 1281 | } |
---|
| 1282 | else |
---|
| 1283 | { |
---|
| 1284 | // SZ_compress_args_int8_NoCkRngeNoGzip_2D(newByteData, oriData, r2, r1, realPrecision, outSize); |
---|
| 1285 | if(r5==0&&r4==0&&r3==0&&r2==0) |
---|
| 1286 | { |
---|
| 1287 | SZ_compress_args_int8_NoCkRngeNoGzip_1D(newByteData, oriData, r1, realPrecision, outSize, valueRangeSize, minValue); |
---|
| 1288 | } |
---|
| 1289 | else if(r5==0&&r4==0&&r3==0) |
---|
| 1290 | { |
---|
| 1291 | SZ_compress_args_int8_NoCkRngeNoGzip_2D(newByteData, oriData, r2, r1, realPrecision, outSize, valueRangeSize, minValue); |
---|
| 1292 | } |
---|
| 1293 | else if(r5==0&&r4==0) |
---|
| 1294 | { |
---|
| 1295 | SZ_compress_args_int8_NoCkRngeNoGzip_3D(newByteData, oriData, r3, r2, r1, realPrecision, outSize, valueRangeSize, minValue); |
---|
| 1296 | } |
---|
| 1297 | else if(r5==0) |
---|
| 1298 | { |
---|
| 1299 | SZ_compress_args_int8_NoCkRngeNoGzip_3D(newByteData, oriData, r4*r3, r2, r1, realPrecision, outSize, valueRangeSize, minValue); |
---|
| 1300 | } |
---|
| 1301 | } |
---|
| 1302 | return status; |
---|
| 1303 | } |
---|
| 1304 | |
---|
| 1305 | int SZ_compress_args_int8(unsigned char** newByteData, int8_t *oriData, |
---|
| 1306 | size_t r5, size_t r4, size_t r3, size_t r2, size_t r1, size_t *outSize, |
---|
| 1307 | int errBoundMode, double absErr_Bound, double relBoundRatio) |
---|
| 1308 | { |
---|
| 1309 | confparams_cpr->errorBoundMode = errBoundMode; |
---|
| 1310 | |
---|
| 1311 | if(errBoundMode>=PW_REL) |
---|
| 1312 | { |
---|
| 1313 | printf("Error: Current SZ version doesn't support integer data compression with point-wise relative error bound being based on pwrType=AVG\n"); |
---|
| 1314 | exit(0); |
---|
| 1315 | return SZ_NSCS; |
---|
| 1316 | } |
---|
| 1317 | int status = SZ_SCES; |
---|
| 1318 | size_t dataLength = computeDataLength(r5,r4,r3,r2,r1); |
---|
| 1319 | int64_t valueRangeSize = 0; |
---|
| 1320 | |
---|
| 1321 | int8_t minValue = (int8_t)computeRangeSize_int(oriData, SZ_INT8, dataLength, &valueRangeSize); |
---|
| 1322 | double realPrecision = 0; |
---|
| 1323 | |
---|
| 1324 | if(confparams_cpr->errorBoundMode==PSNR) |
---|
| 1325 | { |
---|
| 1326 | confparams_cpr->errorBoundMode = ABS; |
---|
| 1327 | realPrecision = confparams_cpr->absErrBound = computeABSErrBoundFromPSNR(confparams_cpr->psnr, (double)confparams_cpr->predThreshold, (double)valueRangeSize); |
---|
| 1328 | //printf("realPrecision=%lf\n", realPrecision); |
---|
| 1329 | } |
---|
| 1330 | else |
---|
| 1331 | realPrecision = getRealPrecision_int(valueRangeSize, errBoundMode, absErr_Bound, relBoundRatio, &status); |
---|
| 1332 | |
---|
| 1333 | if(valueRangeSize <= realPrecision) |
---|
| 1334 | { |
---|
| 1335 | SZ_compress_args_int8_withinRange(newByteData, oriData, dataLength, outSize); |
---|
| 1336 | } |
---|
| 1337 | else |
---|
| 1338 | { |
---|
| 1339 | size_t tmpOutSize = 0; |
---|
| 1340 | unsigned char* tmpByteData; |
---|
| 1341 | if (r2==0) |
---|
| 1342 | { |
---|
| 1343 | SZ_compress_args_int8_NoCkRngeNoGzip_1D(&tmpByteData, oriData, r1, realPrecision, &tmpOutSize, valueRangeSize, minValue); |
---|
| 1344 | } |
---|
| 1345 | else |
---|
| 1346 | if (r3==0) |
---|
| 1347 | { |
---|
| 1348 | SZ_compress_args_int8_NoCkRngeNoGzip_2D(&tmpByteData, oriData, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, minValue); |
---|
| 1349 | } |
---|
| 1350 | else |
---|
| 1351 | if (r4==0) |
---|
| 1352 | { |
---|
| 1353 | SZ_compress_args_int8_NoCkRngeNoGzip_3D(&tmpByteData, oriData, r3, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, minValue); |
---|
| 1354 | } |
---|
| 1355 | else |
---|
| 1356 | if (r5==0) |
---|
| 1357 | { |
---|
| 1358 | SZ_compress_args_int8_NoCkRngeNoGzip_4D(&tmpByteData, oriData, r4, r3, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, minValue); |
---|
| 1359 | } |
---|
| 1360 | else |
---|
| 1361 | { |
---|
| 1362 | printf("Error: doesn't support 5 dimensions for now.\n"); |
---|
| 1363 | status = SZ_DERR; //dimension error |
---|
| 1364 | } |
---|
| 1365 | //Call Gzip to do the further compression. |
---|
| 1366 | if(confparams_cpr->szMode==SZ_BEST_SPEED) |
---|
| 1367 | { |
---|
| 1368 | *outSize = tmpOutSize; |
---|
| 1369 | *newByteData = tmpByteData; |
---|
| 1370 | } |
---|
| 1371 | else if(confparams_cpr->szMode==SZ_BEST_COMPRESSION || confparams_cpr->szMode==SZ_DEFAULT_COMPRESSION) |
---|
| 1372 | { |
---|
| 1373 | *outSize = zlib_compress5(tmpByteData, tmpOutSize, newByteData, confparams_cpr->gzipMode); |
---|
| 1374 | free(tmpByteData); |
---|
| 1375 | } |
---|
| 1376 | else |
---|
| 1377 | { |
---|
| 1378 | printf("Error: Wrong setting of confparams_cpr->szMode in the int8_t compression.\n"); |
---|
| 1379 | status = SZ_MERR; //mode error |
---|
| 1380 | } |
---|
| 1381 | } |
---|
| 1382 | |
---|
| 1383 | return status; |
---|
| 1384 | } |
---|