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; |
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413 | if(tmp >= SZ_INT8_MIN&&tmp<SZ_INT8_MAX) |
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414 | P1[1] = tmp; |
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415 | else if(tmp < SZ_INT8_MIN) |
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416 | P1[1] = SZ_INT8_MIN; |
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417 | else |
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418 | P1[1] = SZ_INT8_MAX; |
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419 | } |
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420 | else |
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421 | { |
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422 | type[1] = 0; |
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423 | curValue = P1[1] = spaceFillingValue[1]; |
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424 | compressInt8Value(curValue, minValue, byteSize, bytes); |
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425 | memcpyDBA_Data(exactDataByteArray, bytes, byteSize); |
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426 | } |
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427 | |
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428 | /* Process Row-0 data 2 --> data r2-1 */ |
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429 | for (j = 2; j < r2; j++) |
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430 | { |
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431 | pred1D = 2*P1[j-1] - P1[j-2]; |
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432 | diff = spaceFillingValue[j] - pred1D; |
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433 | |
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434 | itvNum = llabs(diff)/realPrecision + 1; |
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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 | } |
---|