1 | /** |
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2 | * @file sz_float.c |
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3 | * @author Sheng Di, Dingwen Tao, Xin Liang |
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4 | * @date Aug, 2016 |
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5 | * @brief SZ_Init, Compression and Decompression functions |
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6 | * (C) 2016 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 "TightDataPointStorageF.h" |
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21 | #include "sz_float.h" |
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22 | #include "sz_float_pwr.h" |
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23 | #include "szd_float.h" |
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24 | #include "szd_float_pwr.h" |
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25 | #include "zlib.h" |
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26 | #include "rw.h" |
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27 | #include "sz_float_ts.h" |
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28 | #include "utility.h" |
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29 | |
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30 | unsigned char* SZ_skip_compress_float(float* data, size_t dataLength, size_t* outSize) |
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31 | { |
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32 | *outSize = dataLength*sizeof(float); |
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33 | unsigned char* out = (unsigned char*)malloc(dataLength*sizeof(float)); |
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34 | memcpy(out, data, dataLength*sizeof(float)); |
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35 | return out; |
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36 | } |
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37 | unsigned int optimize_intervals_float_1D(float *oriData, size_t dataLength, double realPrecision) |
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38 | { |
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39 | size_t i = 0, radiusIndex; |
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40 | float pred_value = 0, pred_err; |
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41 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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42 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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43 | size_t totalSampleSize = dataLength/confparams_cpr->sampleDistance; |
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44 | for(i=2;i<dataLength;i++) |
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45 | { |
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46 | if(i%confparams_cpr->sampleDistance==0) |
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47 | { |
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48 | //pred_value = 2*oriData[i-1] - oriData[i-2]; |
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49 | pred_value = oriData[i-1]; |
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50 | pred_err = fabs(pred_value - oriData[i]); |
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51 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
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52 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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53 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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54 | intervals[radiusIndex]++; |
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55 | } |
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56 | } |
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57 | //compute the appropriate number |
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58 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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59 | size_t sum = 0; |
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60 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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61 | { |
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62 | sum += intervals[i]; |
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63 | if(sum>targetCount) |
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64 | break; |
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65 | } |
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66 | if(i>=confparams_cpr->maxRangeRadius) |
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67 | i = confparams_cpr->maxRangeRadius-1; |
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68 | |
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69 | unsigned int accIntervals = 2*(i+1); |
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70 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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71 | |
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72 | if(powerOf2<32) |
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73 | powerOf2 = 32; |
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74 | |
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75 | free(intervals); |
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76 | //printf("accIntervals=%d, powerOf2=%d\n", accIntervals, powerOf2); |
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77 | return powerOf2; |
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78 | } |
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79 | |
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80 | unsigned int optimize_intervals_float_2D(float *oriData, size_t r1, size_t r2, double realPrecision) |
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81 | { |
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82 | size_t i,j, index; |
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83 | size_t radiusIndex; |
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84 | float pred_value = 0, pred_err; |
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85 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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86 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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87 | size_t totalSampleSize = (r1-1)*(r2-1)/confparams_cpr->sampleDistance; |
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88 | |
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89 | //float max = oriData[0]; |
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90 | //float min = oriData[0]; |
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91 | |
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92 | for(i=1;i<r1;i++) |
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93 | { |
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94 | for(j=1;j<r2;j++) |
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95 | { |
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96 | if((i+j)%confparams_cpr->sampleDistance==0) |
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97 | { |
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98 | index = i*r2+j; |
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99 | pred_value = oriData[index-1] + oriData[index-r2] - oriData[index-r2-1]; |
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100 | pred_err = fabs(pred_value - oriData[index]); |
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101 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
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102 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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103 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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104 | intervals[radiusIndex]++; |
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105 | |
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106 | // if (max < oriData[index]) max = oriData[index]; |
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107 | // if (min > oriData[index]) min = oriData[index]; |
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108 | } |
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109 | } |
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110 | } |
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111 | //compute the appropriate number |
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112 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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113 | size_t sum = 0; |
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114 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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115 | { |
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116 | sum += intervals[i]; |
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117 | if(sum>targetCount) |
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118 | break; |
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119 | } |
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120 | if(i>=confparams_cpr->maxRangeRadius) |
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121 | i = confparams_cpr->maxRangeRadius-1; |
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122 | unsigned int accIntervals = 2*(i+1); |
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123 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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124 | |
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125 | if(powerOf2<32) |
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126 | powerOf2 = 32; |
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127 | |
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128 | // struct timeval costStart, costEnd; |
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129 | // double cost_est = 0; |
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130 | // |
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131 | // gettimeofday(&costStart, NULL); |
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132 | // |
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133 | // //compute estimate of bit-rate and distortion |
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134 | // double est_br = 0; |
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135 | // double est_psnr = 0; |
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136 | // double c1 = log2(targetCount)+1; |
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137 | // double c2 = -20.0*log10(realPrecision) + 20.0*log10(max-min) + 10.0*log10(3); |
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138 | // |
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139 | // for (i = 0; i < powerOf2/2; i++) |
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140 | // { |
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141 | // int count = intervals[i]; |
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142 | // if (count != 0) |
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143 | // est_br += count*log2(count); |
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144 | // est_psnr += count; |
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145 | // } |
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146 | // |
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147 | // //compute estimate of bit-rate |
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148 | // est_br -= c1*est_psnr; |
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149 | // est_br /= totalSampleSize; |
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150 | // est_br = -est_br; |
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151 | // |
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152 | // //compute estimate of psnr |
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153 | // est_psnr /= totalSampleSize; |
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154 | // printf ("sum of P(i) = %lf\n", est_psnr); |
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155 | // est_psnr = -10.0*log10(est_psnr); |
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156 | // est_psnr += c2; |
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157 | // |
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158 | // printf ("estimate bitrate = %.2f\n", est_br); |
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159 | // printf ("estimate psnr = %.2f\n",est_psnr); |
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160 | // |
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161 | // gettimeofday(&costEnd, NULL); |
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162 | // cost_est = ((costEnd.tv_sec*1000000+costEnd.tv_usec)-(costStart.tv_sec*1000000+costStart.tv_usec))/1000000.0; |
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163 | // |
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164 | // printf ("analysis time = %f\n", cost_est); |
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165 | |
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166 | free(intervals); |
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167 | //printf("confparams_cpr->maxRangeRadius = %d, accIntervals=%d, powerOf2=%d\n", confparams_cpr->maxRangeRadius, accIntervals, powerOf2); |
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168 | return powerOf2; |
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169 | } |
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170 | |
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171 | unsigned int optimize_intervals_float_3D(float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision) |
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172 | { |
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173 | size_t i,j,k, index; |
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174 | size_t radiusIndex; |
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175 | size_t r23=r2*r3; |
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176 | float pred_value = 0, pred_err; |
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177 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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178 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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179 | size_t totalSampleSize = (r1-1)*(r2-1)*(r3-1)/confparams_cpr->sampleDistance; |
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180 | |
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181 | //float max = oriData[0]; |
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182 | //float min = oriData[0]; |
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183 | |
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184 | for(i=1;i<r1;i++) |
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185 | { |
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186 | for(j=1;j<r2;j++) |
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187 | { |
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188 | for(k=1;k<r3;k++) |
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189 | { |
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190 | if((i+j+k)%confparams_cpr->sampleDistance==0) |
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191 | { |
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192 | index = i*r23+j*r3+k; |
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193 | pred_value = oriData[index-1] + oriData[index-r3] + oriData[index-r23] |
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194 | - oriData[index-1-r23] - oriData[index-r3-1] - oriData[index-r3-r23] + oriData[index-r3-r23-1]; |
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195 | pred_err = fabs(pred_value - oriData[index]); |
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196 | radiusIndex = (pred_err/realPrecision+1)/2; |
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197 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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198 | { |
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199 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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200 | //printf("radiusIndex=%d\n", radiusIndex); |
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201 | } |
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202 | intervals[radiusIndex]++; |
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203 | |
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204 | // if (max < oriData[index]) max = oriData[index]; |
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205 | // if (min > oriData[index]) min = oriData[index]; |
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206 | } |
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207 | } |
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208 | } |
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209 | } |
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210 | //compute the appropriate number |
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211 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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212 | size_t sum = 0; |
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213 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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214 | { |
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215 | sum += intervals[i]; |
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216 | if(sum>targetCount) |
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217 | break; |
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218 | } |
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219 | if(i>=confparams_cpr->maxRangeRadius) |
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220 | i = confparams_cpr->maxRangeRadius-1; |
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221 | unsigned int accIntervals = 2*(i+1); |
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222 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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223 | |
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224 | if(powerOf2<32) |
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225 | powerOf2 = 32; |
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226 | |
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227 | // struct timeval costStart, costEnd; |
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228 | // double cost_est = 0; |
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229 | // |
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230 | // gettimeofday(&costStart, NULL); |
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231 | // |
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232 | // //compute estimate of bit-rate and distortion |
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233 | // double est_br = 0; |
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234 | // double est_psnr = 0; |
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235 | // double c1 = log2(targetCount)+1; |
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236 | // double c2 = -20.0*log10(realPrecision) + 20.0*log10(max-min) + 10.0*log10(3); |
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237 | // |
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238 | // for (i = 0; i < powerOf2/2; i++) |
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239 | // { |
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240 | // int count = intervals[i]; |
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241 | // if (count != 0) |
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242 | // est_br += count*log2(count); |
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243 | // est_psnr += count; |
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244 | // } |
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245 | // |
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246 | // //compute estimate of bit-rate |
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247 | // est_br -= c1*est_psnr; |
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248 | // est_br /= totalSampleSize; |
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249 | // est_br = -est_br; |
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250 | // |
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251 | // //compute estimate of psnr |
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252 | // est_psnr /= totalSampleSize; |
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253 | // printf ("sum of P(i) = %lf\n", est_psnr); |
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254 | // est_psnr = -10.0*log10(est_psnr); |
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255 | // est_psnr += c2; |
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256 | // |
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257 | // printf ("estimate bitrate = %.2f\n", est_br); |
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258 | // printf ("estimate psnr = %.2f\n",est_psnr); |
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259 | // |
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260 | // gettimeofday(&costEnd, NULL); |
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261 | // cost_est = ((costEnd.tv_sec*1000000+costEnd.tv_usec)-(costStart.tv_sec*1000000+costStart.tv_usec))/1000000.0; |
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262 | // |
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263 | // printf ("analysis time = %f\n", cost_est); |
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264 | |
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265 | free(intervals); |
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266 | //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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267 | return powerOf2; |
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268 | } |
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269 | |
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270 | |
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271 | unsigned int optimize_intervals_float_4D(float *oriData, size_t r1, size_t r2, size_t r3, size_t r4, double realPrecision) |
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272 | { |
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273 | size_t i,j,k,l, index; |
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274 | size_t radiusIndex; |
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275 | size_t r234=r2*r3*r4; |
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276 | size_t r34=r3*r4; |
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277 | float pred_value = 0, pred_err; |
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278 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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279 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
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280 | size_t totalSampleSize = (r1-1)*(r2-1)*(r3-1)*(r4-1)/confparams_cpr->sampleDistance; |
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281 | for(i=1;i<r1;i++) |
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282 | { |
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283 | for(j=1;j<r2;j++) |
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284 | { |
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285 | for(k=1;k<r3;k++) |
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286 | { |
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287 | for (l=1;l<r4;l++) |
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288 | { |
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289 | if((i+j+k+l)%confparams_cpr->sampleDistance==0) |
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290 | { |
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291 | index = i*r234+j*r34+k*r4+l; |
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292 | pred_value = oriData[index-1] + oriData[index-r3] + oriData[index-r34] |
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293 | - oriData[index-1-r34] - oriData[index-r4-1] - oriData[index-r4-r34] + oriData[index-r4-r34-1]; |
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294 | pred_err = fabs(pred_value - oriData[index]); |
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295 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
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296 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
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297 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
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298 | intervals[radiusIndex]++; |
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299 | } |
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300 | } |
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301 | } |
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302 | } |
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303 | } |
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304 | //compute the appropriate number |
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305 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
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306 | size_t sum = 0; |
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307 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
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308 | { |
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309 | sum += intervals[i]; |
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310 | if(sum>targetCount) |
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311 | break; |
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312 | } |
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313 | if(i>=confparams_cpr->maxRangeRadius) |
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314 | i = confparams_cpr->maxRangeRadius-1; |
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315 | |
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316 | unsigned int accIntervals = 2*(i+1); |
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317 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
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318 | |
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319 | if(powerOf2<32) |
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320 | powerOf2 = 32; |
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321 | |
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322 | free(intervals); |
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323 | return powerOf2; |
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324 | } |
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325 | |
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326 | TightDataPointStorageF* SZ_compress_float_1D_MDQ(float *oriData, |
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327 | size_t dataLength, double realPrecision, float valueRangeSize, float medianValue_f) |
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328 | { |
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329 | #ifdef HAVE_TIMECMPR |
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330 | float* decData = NULL; |
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331 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
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332 | decData = (float*)(multisteps->hist_data); |
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333 | #endif |
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334 | |
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335 | unsigned int quantization_intervals; |
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336 | if(exe_params->optQuantMode==1) |
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337 | quantization_intervals = optimize_intervals_float_1D_opt(oriData, dataLength, realPrecision); |
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338 | else |
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339 | quantization_intervals = exe_params->intvCapacity; |
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340 | updateQuantizationInfo(quantization_intervals); |
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341 | |
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342 | size_t i; |
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343 | int reqLength; |
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344 | float medianValue = medianValue_f; |
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345 | short radExpo = getExponent_float(valueRangeSize/2); |
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346 | |
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347 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
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348 | |
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349 | int* type = (int*) malloc(dataLength*sizeof(int)); |
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350 | |
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351 | float* spaceFillingValue = oriData; // |
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352 | |
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353 | DynamicIntArray *exactLeadNumArray; |
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354 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
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355 | |
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356 | DynamicByteArray *exactMidByteArray; |
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357 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
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358 | |
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359 | DynamicIntArray *resiBitArray; |
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360 | new_DIA(&resiBitArray, DynArrayInitLen); |
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361 | |
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362 | unsigned char preDataBytes[4]; |
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363 | intToBytes_bigEndian(preDataBytes, 0); |
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364 | |
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365 | int reqBytesLength = reqLength/8; |
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366 | int resiBitsLength = reqLength%8; |
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367 | float last3CmprsData[3] = {0}; |
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368 | |
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369 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
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370 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
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371 | |
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372 | //add the first data |
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373 | type[0] = 0; |
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374 | compressSingleFloatValue(vce, spaceFillingValue[0], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
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375 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
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376 | memcpy(preDataBytes,vce->curBytes,4); |
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377 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
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378 | listAdd_float(last3CmprsData, vce->data); |
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379 | #ifdef HAVE_TIMECMPR |
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380 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
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381 | decData[0] = vce->data; |
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382 | #endif |
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383 | |
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384 | //add the second data |
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385 | type[1] = 0; |
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386 | compressSingleFloatValue(vce, spaceFillingValue[1], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
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387 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
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388 | memcpy(preDataBytes,vce->curBytes,4); |
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389 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
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390 | listAdd_float(last3CmprsData, vce->data); |
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391 | #ifdef HAVE_TIMECMPR |
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392 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
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393 | decData[1] = vce->data; |
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394 | #endif |
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395 | int state; |
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396 | double checkRadius; |
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397 | float curData; |
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398 | float pred; |
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399 | float predAbsErr; |
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400 | checkRadius = (exe_params->intvCapacity-1)*realPrecision; |
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401 | double interval = 2*realPrecision; |
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402 | |
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403 | for(i=2;i<dataLength;i++) |
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404 | { |
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405 | curData = spaceFillingValue[i]; |
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406 | //pred = 2*last3CmprsData[0] - last3CmprsData[1]; |
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407 | pred = last3CmprsData[0]; |
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408 | predAbsErr = fabs(curData - pred); |
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409 | if(predAbsErr<checkRadius) |
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410 | { |
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411 | state = (predAbsErr/realPrecision+1)/2; |
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412 | if(curData>=pred) |
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413 | { |
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414 | type[i] = exe_params->intvRadius+state; |
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415 | pred = pred + state*interval; |
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416 | } |
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417 | else //curData<pred |
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418 | { |
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419 | type[i] = exe_params->intvRadius-state; |
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420 | pred = pred - state*interval; |
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421 | } |
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422 | |
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423 | //double-check the prediction error in case of machine-epsilon impact |
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424 | if(fabs(curData-pred)>realPrecision) |
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425 | { |
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426 | type[i] = 0; |
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427 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
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428 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
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429 | memcpy(preDataBytes,vce->curBytes,4); |
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430 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
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431 | |
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432 | listAdd_float(last3CmprsData, vce->data); |
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433 | #ifdef HAVE_TIMECMPR |
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434 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
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435 | decData[i] = vce->data; |
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436 | #endif |
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437 | } |
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438 | else |
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439 | { |
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440 | listAdd_float(last3CmprsData, pred); |
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441 | #ifdef HAVE_TIMECMPR |
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442 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
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443 | decData[i] = pred; |
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444 | #endif |
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445 | } |
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446 | continue; |
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447 | } |
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448 | |
---|
449 | //unpredictable data processing |
---|
450 | type[i] = 0; |
---|
451 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
452 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
453 | memcpy(preDataBytes,vce->curBytes,4); |
---|
454 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
455 | |
---|
456 | listAdd_float(last3CmprsData, vce->data); |
---|
457 | #ifdef HAVE_TIMECMPR |
---|
458 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
459 | decData[i] = vce->data; |
---|
460 | #endif |
---|
461 | |
---|
462 | }//end of for |
---|
463 | |
---|
464 | // char* expSegmentsInBytes; |
---|
465 | // int expSegmentsInBytes_size = convertESCToBytes(esc, &expSegmentsInBytes); |
---|
466 | size_t exactDataNum = exactLeadNumArray->size; |
---|
467 | |
---|
468 | TightDataPointStorageF* tdps; |
---|
469 | |
---|
470 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
471 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
472 | exactLeadNumArray->array, |
---|
473 | resiBitArray->array, resiBitArray->size, |
---|
474 | resiBitsLength, |
---|
475 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
476 | |
---|
477 | //sdi:Debug |
---|
478 | /* int sum =0; |
---|
479 | for(i=0;i<dataLength;i++) |
---|
480 | if(type[i]==0) sum++; |
---|
481 | printf("opt_quantizations=%d, exactDataNum=%d, sum=%d\n",quantization_intervals, exactDataNum, sum);*/ |
---|
482 | |
---|
483 | //free memory |
---|
484 | free_DIA(exactLeadNumArray); |
---|
485 | free_DIA(resiBitArray); |
---|
486 | free(type); |
---|
487 | free(vce); |
---|
488 | free(lce); |
---|
489 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
490 | |
---|
491 | return tdps; |
---|
492 | } |
---|
493 | |
---|
494 | void SZ_compress_args_float_StoreOriData(float* oriData, size_t dataLength, TightDataPointStorageF* tdps, |
---|
495 | unsigned char** newByteData, size_t *outSize) |
---|
496 | { |
---|
497 | int floatSize=sizeof(float); |
---|
498 | size_t k = 0, i; |
---|
499 | tdps->isLossless = 1; |
---|
500 | size_t totalByteLength = 3 + MetaDataByteLength + exe_params->SZ_SIZE_TYPE + 1 + floatSize*dataLength; |
---|
501 | *newByteData = (unsigned char*)malloc(totalByteLength); |
---|
502 | |
---|
503 | unsigned char dsLengthBytes[8]; |
---|
504 | for (i = 0; i < 3; i++)//3 |
---|
505 | (*newByteData)[k++] = versionNumber[i]; |
---|
506 | |
---|
507 | if(exe_params->SZ_SIZE_TYPE==4)//1 |
---|
508 | (*newByteData)[k++] = 16; //00010000 |
---|
509 | else |
---|
510 | (*newByteData)[k++] = 80; //01010000: 01000000 indicates the SZ_SIZE_TYPE=8 |
---|
511 | |
---|
512 | convertSZParamsToBytes(confparams_cpr, &((*newByteData)[k])); |
---|
513 | k = k + MetaDataByteLength; |
---|
514 | |
---|
515 | sizeToBytes(dsLengthBytes,dataLength); //SZ_SIZE_TYPE: 4 or 8 |
---|
516 | for (i = 0; i < exe_params->SZ_SIZE_TYPE; i++) |
---|
517 | (*newByteData)[k++] = dsLengthBytes[i]; |
---|
518 | |
---|
519 | if(sysEndianType==BIG_ENDIAN_SYSTEM) |
---|
520 | memcpy((*newByteData)+4+MetaDataByteLength+exe_params->SZ_SIZE_TYPE, oriData, dataLength*floatSize); |
---|
521 | else |
---|
522 | { |
---|
523 | unsigned char* p = (*newByteData)+4+MetaDataByteLength+exe_params->SZ_SIZE_TYPE; |
---|
524 | for(i=0;i<dataLength;i++,p+=floatSize) |
---|
525 | floatToBytes(p, oriData[i]); |
---|
526 | } |
---|
527 | *outSize = totalByteLength; |
---|
528 | } |
---|
529 | |
---|
530 | char SZ_compress_args_float_NoCkRngeNoGzip_1D(unsigned char** newByteData, float *oriData, |
---|
531 | size_t dataLength, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f) |
---|
532 | { |
---|
533 | char compressionType = 0; |
---|
534 | TightDataPointStorageF* tdps = NULL; |
---|
535 | |
---|
536 | #ifdef HAVE_TIMECMPR |
---|
537 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
538 | { |
---|
539 | int timestep = sz_tsc->currentStep; |
---|
540 | if(timestep % confparams_cpr->snapshotCmprStep != 0) |
---|
541 | { |
---|
542 | tdps = SZ_compress_float_1D_MDQ_ts(oriData, dataLength, multisteps, realPrecision, valueRangeSize, medianValue_f); |
---|
543 | compressionType = 1; //time-series based compression |
---|
544 | } |
---|
545 | else |
---|
546 | { |
---|
547 | tdps = SZ_compress_float_1D_MDQ(oriData, dataLength, realPrecision, valueRangeSize, medianValue_f); |
---|
548 | compressionType = 0; //snapshot-based compression |
---|
549 | multisteps->lastSnapshotStep = timestep; |
---|
550 | } |
---|
551 | } |
---|
552 | else |
---|
553 | #endif |
---|
554 | tdps = SZ_compress_float_1D_MDQ(oriData, dataLength, realPrecision, valueRangeSize, medianValue_f); |
---|
555 | |
---|
556 | convertTDPStoFlatBytes_float(tdps, newByteData, outSize); |
---|
557 | |
---|
558 | if(*outSize>dataLength*sizeof(float)) |
---|
559 | SZ_compress_args_float_StoreOriData(oriData, dataLength+2, tdps, newByteData, outSize); |
---|
560 | |
---|
561 | free_TightDataPointStorageF(tdps); |
---|
562 | return compressionType; |
---|
563 | } |
---|
564 | |
---|
565 | TightDataPointStorageF* SZ_compress_float_2D_MDQ(float *oriData, size_t r1, size_t r2, double realPrecision, float valueRangeSize, float medianValue_f) |
---|
566 | { |
---|
567 | #ifdef HAVE_TIMECMPR |
---|
568 | float* decData = NULL; |
---|
569 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
570 | decData = (float*)(multisteps->hist_data); |
---|
571 | #endif |
---|
572 | |
---|
573 | unsigned int quantization_intervals; |
---|
574 | if(exe_params->optQuantMode==1) |
---|
575 | { |
---|
576 | quantization_intervals = optimize_intervals_float_2D_opt(oriData, r1, r2, realPrecision); |
---|
577 | updateQuantizationInfo(quantization_intervals); |
---|
578 | } |
---|
579 | else |
---|
580 | quantization_intervals = exe_params->intvCapacity; |
---|
581 | size_t i,j; |
---|
582 | int reqLength; |
---|
583 | float pred1D, pred2D; |
---|
584 | float diff = 0.0; |
---|
585 | double itvNum = 0; |
---|
586 | float *P0, *P1; |
---|
587 | |
---|
588 | size_t dataLength = r1*r2; |
---|
589 | |
---|
590 | P0 = (float*)malloc(r2*sizeof(float)); |
---|
591 | memset(P0, 0, r2*sizeof(float)); |
---|
592 | P1 = (float*)malloc(r2*sizeof(float)); |
---|
593 | memset(P1, 0, r2*sizeof(float)); |
---|
594 | |
---|
595 | float medianValue = medianValue_f; |
---|
596 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
597 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
598 | |
---|
599 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
600 | //type[dataLength]=0; |
---|
601 | |
---|
602 | float* spaceFillingValue = oriData; // |
---|
603 | |
---|
604 | DynamicIntArray *exactLeadNumArray; |
---|
605 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
606 | |
---|
607 | DynamicByteArray *exactMidByteArray; |
---|
608 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
609 | |
---|
610 | DynamicIntArray *resiBitArray; |
---|
611 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
612 | |
---|
613 | type[0] = 0; |
---|
614 | unsigned char preDataBytes[4]; |
---|
615 | intToBytes_bigEndian(preDataBytes, 0); |
---|
616 | |
---|
617 | int reqBytesLength = reqLength/8; |
---|
618 | int resiBitsLength = reqLength%8; |
---|
619 | |
---|
620 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
621 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
622 | |
---|
623 | /* Process Row-0 data 0*/ |
---|
624 | type[0] = 0; |
---|
625 | compressSingleFloatValue(vce, spaceFillingValue[0], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
626 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
627 | memcpy(preDataBytes,vce->curBytes,4); |
---|
628 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
629 | P1[0] = vce->data; |
---|
630 | #ifdef HAVE_TIMECMPR |
---|
631 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
632 | decData[0] = vce->data; |
---|
633 | #endif |
---|
634 | |
---|
635 | float curData; |
---|
636 | |
---|
637 | /* Process Row-0 data 1*/ |
---|
638 | pred1D = P1[0]; |
---|
639 | curData = spaceFillingValue[1]; |
---|
640 | diff = curData - pred1D; |
---|
641 | |
---|
642 | itvNum = fabs(diff)/realPrecision + 1; |
---|
643 | |
---|
644 | if (itvNum < exe_params->intvCapacity) |
---|
645 | { |
---|
646 | if (diff < 0) itvNum = -itvNum; |
---|
647 | type[1] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
648 | P1[1] = pred1D + 2 * (type[1] - exe_params->intvRadius) * realPrecision; |
---|
649 | |
---|
650 | //ganrantee comporession error against the case of machine-epsilon |
---|
651 | if(fabs(spaceFillingValue[1]-P1[1])>realPrecision) |
---|
652 | { |
---|
653 | type[1] = 0; |
---|
654 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
655 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
656 | memcpy(preDataBytes,vce->curBytes,4); |
---|
657 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
658 | |
---|
659 | P1[1] = vce->data; |
---|
660 | } |
---|
661 | } |
---|
662 | else |
---|
663 | { |
---|
664 | type[1] = 0; |
---|
665 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
666 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
667 | memcpy(preDataBytes,vce->curBytes,4); |
---|
668 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
669 | P1[1] = vce->data; |
---|
670 | } |
---|
671 | #ifdef HAVE_TIMECMPR |
---|
672 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
673 | decData[1] = P1[1]; |
---|
674 | #endif |
---|
675 | |
---|
676 | /* Process Row-0 data 2 --> data r2-1 */ |
---|
677 | for (j = 2; j < r2; j++) |
---|
678 | { |
---|
679 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
680 | curData = spaceFillingValue[j]; |
---|
681 | diff = curData - pred1D; |
---|
682 | |
---|
683 | itvNum = fabs(diff)/realPrecision + 1; |
---|
684 | |
---|
685 | if (itvNum < exe_params->intvCapacity) |
---|
686 | { |
---|
687 | if (diff < 0) itvNum = -itvNum; |
---|
688 | type[j] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
689 | P1[j] = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
690 | |
---|
691 | //ganrantee comporession error against the case of machine-epsilon |
---|
692 | if(fabs(curData-P1[j])>realPrecision) |
---|
693 | { |
---|
694 | type[j] = 0; |
---|
695 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
696 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
697 | memcpy(preDataBytes,vce->curBytes,4); |
---|
698 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
699 | |
---|
700 | P1[j] = vce->data; |
---|
701 | } |
---|
702 | } |
---|
703 | else |
---|
704 | { |
---|
705 | type[j] = 0; |
---|
706 | compressSingleFloatValue(vce,curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
707 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
708 | memcpy(preDataBytes,vce->curBytes,4); |
---|
709 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
710 | P1[j] = vce->data; |
---|
711 | } |
---|
712 | #ifdef HAVE_TIMECMPR |
---|
713 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
714 | decData[j] = P1[j]; |
---|
715 | #endif |
---|
716 | } |
---|
717 | |
---|
718 | /* Process Row-1 --> Row-r1-1 */ |
---|
719 | size_t index; |
---|
720 | for (i = 1; i < r1; i++) |
---|
721 | { |
---|
722 | /* Process row-i data 0 */ |
---|
723 | index = i*r2; |
---|
724 | pred1D = P1[0]; |
---|
725 | curData = spaceFillingValue[index]; |
---|
726 | diff = curData - pred1D; |
---|
727 | |
---|
728 | itvNum = fabs(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 | P0[0] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
735 | |
---|
736 | //ganrantee comporession error against the case of machine-epsilon |
---|
737 | if(fabs(curData-P0[0])>realPrecision) |
---|
738 | { |
---|
739 | type[index] = 0; |
---|
740 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
741 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
742 | memcpy(preDataBytes,vce->curBytes,4); |
---|
743 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
744 | |
---|
745 | P0[0] = vce->data; |
---|
746 | } |
---|
747 | } |
---|
748 | else |
---|
749 | { |
---|
750 | type[index] = 0; |
---|
751 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
752 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
753 | memcpy(preDataBytes,vce->curBytes,4); |
---|
754 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
755 | P0[0] = vce->data; |
---|
756 | } |
---|
757 | #ifdef HAVE_TIMECMPR |
---|
758 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
759 | decData[index] = P0[0]; |
---|
760 | #endif |
---|
761 | |
---|
762 | /* Process row-i data 1 --> r2-1*/ |
---|
763 | for (j = 1; j < r2; j++) |
---|
764 | { |
---|
765 | index = i*r2+j; |
---|
766 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
767 | |
---|
768 | curData = spaceFillingValue[index]; |
---|
769 | diff = curData - pred2D; |
---|
770 | |
---|
771 | itvNum = fabs(diff)/realPrecision + 1; |
---|
772 | |
---|
773 | if (itvNum < exe_params->intvCapacity) |
---|
774 | { |
---|
775 | if (diff < 0) itvNum = -itvNum; |
---|
776 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
777 | P0[j] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
778 | |
---|
779 | //ganrantee comporession error against the case of machine-epsilon |
---|
780 | if(fabs(curData-P0[j])>realPrecision) |
---|
781 | { |
---|
782 | type[index] = 0; |
---|
783 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
784 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
785 | memcpy(preDataBytes,vce->curBytes,4); |
---|
786 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
787 | |
---|
788 | P0[j] = vce->data; |
---|
789 | } |
---|
790 | } |
---|
791 | else |
---|
792 | { |
---|
793 | type[index] = 0; |
---|
794 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
795 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
796 | memcpy(preDataBytes,vce->curBytes,4); |
---|
797 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
798 | P0[j] = vce->data; |
---|
799 | } |
---|
800 | #ifdef HAVE_TIMECMPR |
---|
801 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
802 | decData[index] = P0[j]; |
---|
803 | #endif |
---|
804 | } |
---|
805 | |
---|
806 | float *Pt; |
---|
807 | Pt = P1; |
---|
808 | P1 = P0; |
---|
809 | P0 = Pt; |
---|
810 | } |
---|
811 | |
---|
812 | if(r2!=1) |
---|
813 | free(P0); |
---|
814 | free(P1); |
---|
815 | size_t exactDataNum = exactLeadNumArray->size; |
---|
816 | |
---|
817 | TightDataPointStorageF* tdps; |
---|
818 | |
---|
819 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
820 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
821 | exactLeadNumArray->array, |
---|
822 | resiBitArray->array, resiBitArray->size, |
---|
823 | resiBitsLength, |
---|
824 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
825 | |
---|
826 | // printf("exactDataNum=%d, expSegmentsInBytes_size=%d, exactMidByteArray->size=%d\n", |
---|
827 | // exactDataNum, expSegmentsInBytes_size, exactMidByteArray->size); |
---|
828 | |
---|
829 | // for(i = 3800;i<3844;i++) |
---|
830 | // printf("exactLeadNumArray->array[%d]=%d\n",i,exactLeadNumArray->array[i]); |
---|
831 | |
---|
832 | //free memory |
---|
833 | free_DIA(exactLeadNumArray); |
---|
834 | free_DIA(resiBitArray); |
---|
835 | free(type); |
---|
836 | free(vce); |
---|
837 | free(lce); |
---|
838 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
839 | |
---|
840 | return tdps; |
---|
841 | } |
---|
842 | |
---|
843 | /** |
---|
844 | * |
---|
845 | * Note: @r1 is high dimension |
---|
846 | * @r2 is low dimension |
---|
847 | * */ |
---|
848 | char SZ_compress_args_float_NoCkRngeNoGzip_2D(unsigned char** newByteData, float *oriData, size_t r1, size_t r2, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f) |
---|
849 | { |
---|
850 | size_t dataLength = r1*r2; |
---|
851 | char compressionType = 0; |
---|
852 | TightDataPointStorageF* tdps = NULL; |
---|
853 | |
---|
854 | #ifdef HAVE_TIMECMPR |
---|
855 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
856 | { |
---|
857 | int timestep = sz_tsc->currentStep; |
---|
858 | if(timestep % confparams_cpr->snapshotCmprStep != 0) |
---|
859 | { |
---|
860 | tdps = SZ_compress_float_1D_MDQ_ts(oriData, dataLength, multisteps, realPrecision, valueRangeSize, medianValue_f); |
---|
861 | compressionType = 1; //time-series based compression |
---|
862 | } |
---|
863 | else |
---|
864 | { |
---|
865 | tdps = SZ_compress_float_2D_MDQ(oriData, r1, r2, realPrecision, valueRangeSize, medianValue_f); |
---|
866 | compressionType = 0; //snapshot-based compression |
---|
867 | multisteps->lastSnapshotStep = timestep; |
---|
868 | } |
---|
869 | } |
---|
870 | else |
---|
871 | #endif |
---|
872 | tdps = SZ_compress_float_2D_MDQ(oriData, r1, r2, realPrecision, valueRangeSize, medianValue_f); |
---|
873 | |
---|
874 | convertTDPStoFlatBytes_float(tdps, newByteData, outSize); |
---|
875 | |
---|
876 | if(*outSize>dataLength*sizeof(float)) |
---|
877 | SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
878 | |
---|
879 | free_TightDataPointStorageF(tdps); |
---|
880 | |
---|
881 | return compressionType; |
---|
882 | } |
---|
883 | |
---|
884 | TightDataPointStorageF* SZ_compress_float_3D_MDQ(float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, float valueRangeSize, float medianValue_f) |
---|
885 | { |
---|
886 | #ifdef HAVE_TIMECMPR |
---|
887 | float* decData = NULL; |
---|
888 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
889 | decData = (float*)(multisteps->hist_data); |
---|
890 | #endif |
---|
891 | |
---|
892 | unsigned int quantization_intervals; |
---|
893 | if(exe_params->optQuantMode==1) |
---|
894 | { |
---|
895 | quantization_intervals = optimize_intervals_float_3D_opt(oriData, r1, r2, r3, realPrecision); |
---|
896 | updateQuantizationInfo(quantization_intervals); |
---|
897 | } |
---|
898 | else |
---|
899 | quantization_intervals = exe_params->intvCapacity; |
---|
900 | size_t i,j,k; |
---|
901 | int reqLength; |
---|
902 | float pred1D, pred2D, pred3D; |
---|
903 | float diff = 0.0; |
---|
904 | double itvNum = 0; |
---|
905 | float *P0, *P1; |
---|
906 | |
---|
907 | size_t dataLength = r1*r2*r3; |
---|
908 | size_t r23 = r2*r3; |
---|
909 | P0 = (float*)malloc(r23*sizeof(float)); |
---|
910 | P1 = (float*)malloc(r23*sizeof(float)); |
---|
911 | |
---|
912 | float medianValue = medianValue_f; |
---|
913 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
914 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
915 | |
---|
916 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
917 | |
---|
918 | float* spaceFillingValue = oriData; // |
---|
919 | |
---|
920 | DynamicIntArray *exactLeadNumArray; |
---|
921 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
922 | |
---|
923 | DynamicByteArray *exactMidByteArray; |
---|
924 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
925 | |
---|
926 | DynamicIntArray *resiBitArray; |
---|
927 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
928 | |
---|
929 | unsigned char preDataBytes[4]; |
---|
930 | intToBytes_bigEndian(preDataBytes, 0); |
---|
931 | |
---|
932 | int reqBytesLength = reqLength/8; |
---|
933 | int resiBitsLength = reqLength%8; |
---|
934 | |
---|
935 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
936 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
937 | |
---|
938 | |
---|
939 | /////////////////////////// Process layer-0 /////////////////////////// |
---|
940 | /* Process Row-0 data 0*/ |
---|
941 | type[0] = 0; |
---|
942 | compressSingleFloatValue(vce, spaceFillingValue[0], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
943 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
944 | memcpy(preDataBytes,vce->curBytes,4); |
---|
945 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
946 | P1[0] = vce->data; |
---|
947 | #ifdef HAVE_TIMECMPR |
---|
948 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
949 | decData[0] = P1[0]; |
---|
950 | #endif |
---|
951 | |
---|
952 | float curData; |
---|
953 | |
---|
954 | /* Process Row-0 data 1*/ |
---|
955 | pred1D = P1[0]; |
---|
956 | curData = spaceFillingValue[1]; |
---|
957 | diff = curData - pred1D; |
---|
958 | |
---|
959 | itvNum = fabs(diff)/realPrecision + 1; |
---|
960 | |
---|
961 | if (itvNum < exe_params->intvCapacity) |
---|
962 | { |
---|
963 | if (diff < 0) itvNum = -itvNum; |
---|
964 | type[1] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
965 | P1[1] = pred1D + 2 * (type[1] - exe_params->intvRadius) * realPrecision; |
---|
966 | |
---|
967 | //ganrantee comporession error against the case of machine-epsilon |
---|
968 | if(fabs(curData-P1[1])>realPrecision) |
---|
969 | { |
---|
970 | type[1] = 0; |
---|
971 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
972 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
973 | memcpy(preDataBytes,vce->curBytes,4); |
---|
974 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
975 | |
---|
976 | P1[1] = vce->data; |
---|
977 | } |
---|
978 | } |
---|
979 | else |
---|
980 | { |
---|
981 | type[1] = 0; |
---|
982 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
983 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
984 | memcpy(preDataBytes,vce->curBytes,4); |
---|
985 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
986 | P1[1] = vce->data; |
---|
987 | } |
---|
988 | #ifdef HAVE_TIMECMPR |
---|
989 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
990 | decData[1] = P1[1]; |
---|
991 | #endif |
---|
992 | |
---|
993 | /* Process Row-0 data 2 --> data r3-1 */ |
---|
994 | for (j = 2; j < r3; j++) |
---|
995 | { |
---|
996 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
997 | curData = spaceFillingValue[j]; |
---|
998 | diff = curData - pred1D; |
---|
999 | |
---|
1000 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1001 | |
---|
1002 | if (itvNum < exe_params->intvCapacity) |
---|
1003 | { |
---|
1004 | if (diff < 0) itvNum = -itvNum; |
---|
1005 | type[j] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1006 | P1[j] = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
1007 | |
---|
1008 | //ganrantee comporession error against the case of machine-epsilon |
---|
1009 | if(fabs(curData-P1[j])>realPrecision) |
---|
1010 | { |
---|
1011 | type[j] = 0; |
---|
1012 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1013 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1014 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1015 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1016 | |
---|
1017 | P1[j] = vce->data; |
---|
1018 | } |
---|
1019 | } |
---|
1020 | else |
---|
1021 | { |
---|
1022 | type[j] = 0; |
---|
1023 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1024 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1025 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1026 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1027 | P1[j] = vce->data; |
---|
1028 | } |
---|
1029 | #ifdef HAVE_TIMECMPR |
---|
1030 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1031 | decData[j] = P1[j]; |
---|
1032 | #endif |
---|
1033 | } |
---|
1034 | |
---|
1035 | /* Process Row-1 --> Row-r2-1 */ |
---|
1036 | size_t index; |
---|
1037 | for (i = 1; i < r2; i++) |
---|
1038 | { |
---|
1039 | /* Process row-i data 0 */ |
---|
1040 | index = i*r3; |
---|
1041 | pred1D = P1[index-r3]; |
---|
1042 | curData = spaceFillingValue[index]; |
---|
1043 | diff = curData - pred1D; |
---|
1044 | |
---|
1045 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1046 | |
---|
1047 | if (itvNum < exe_params->intvCapacity) |
---|
1048 | { |
---|
1049 | if (diff < 0) itvNum = -itvNum; |
---|
1050 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1051 | P1[index] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1052 | |
---|
1053 | //ganrantee comporession error against the case of machine-epsilon |
---|
1054 | if(fabs(curData-P1[index])>realPrecision) |
---|
1055 | { |
---|
1056 | type[index] = 0; |
---|
1057 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1058 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1059 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1060 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1061 | |
---|
1062 | P1[index] = vce->data; |
---|
1063 | } |
---|
1064 | } |
---|
1065 | else |
---|
1066 | { |
---|
1067 | type[index] = 0; |
---|
1068 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1069 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1070 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1071 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1072 | P1[index] = vce->data; |
---|
1073 | } |
---|
1074 | #ifdef HAVE_TIMECMPR |
---|
1075 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1076 | decData[index] = P1[index]; |
---|
1077 | #endif |
---|
1078 | |
---|
1079 | /* Process row-i data 1 --> data r3-1*/ |
---|
1080 | for (j = 1; j < r3; j++) |
---|
1081 | { |
---|
1082 | index = i*r3+j; |
---|
1083 | pred2D = P1[index-1] + P1[index-r3] - P1[index-r3-1]; |
---|
1084 | |
---|
1085 | curData = spaceFillingValue[index]; |
---|
1086 | diff = curData - pred2D; |
---|
1087 | |
---|
1088 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1089 | |
---|
1090 | if (itvNum < exe_params->intvCapacity) |
---|
1091 | { |
---|
1092 | if (diff < 0) itvNum = -itvNum; |
---|
1093 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1094 | P1[index] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1095 | |
---|
1096 | //ganrantee comporession error against the case of machine-epsilon |
---|
1097 | if(fabs(curData-P1[index])>realPrecision) |
---|
1098 | { |
---|
1099 | type[index] = 0; |
---|
1100 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1101 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1102 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1103 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1104 | |
---|
1105 | P1[index] = vce->data; |
---|
1106 | } |
---|
1107 | } |
---|
1108 | else |
---|
1109 | { |
---|
1110 | type[index] = 0; |
---|
1111 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1112 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1113 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1114 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1115 | P1[index] = vce->data; |
---|
1116 | } |
---|
1117 | #ifdef HAVE_TIMECMPR |
---|
1118 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1119 | decData[index] = P1[index]; |
---|
1120 | #endif |
---|
1121 | } |
---|
1122 | } |
---|
1123 | |
---|
1124 | |
---|
1125 | /////////////////////////// Process layer-1 --> layer-r1-1 /////////////////////////// |
---|
1126 | |
---|
1127 | for (k = 1; k < r1; k++) |
---|
1128 | { |
---|
1129 | /* Process Row-0 data 0*/ |
---|
1130 | index = k*r23; |
---|
1131 | pred1D = P1[0]; |
---|
1132 | curData = spaceFillingValue[index]; |
---|
1133 | diff = curData - pred1D; |
---|
1134 | |
---|
1135 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1136 | |
---|
1137 | if (itvNum < exe_params->intvCapacity) |
---|
1138 | { |
---|
1139 | if (diff < 0) itvNum = -itvNum; |
---|
1140 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1141 | P0[0] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1142 | |
---|
1143 | //ganrantee comporession error against the case of machine-epsilon |
---|
1144 | if(fabs(curData-P0[0])>realPrecision) |
---|
1145 | { |
---|
1146 | type[index] = 0; |
---|
1147 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1148 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1149 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1150 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1151 | |
---|
1152 | P0[0] = vce->data; |
---|
1153 | } |
---|
1154 | } |
---|
1155 | else |
---|
1156 | { |
---|
1157 | type[index] = 0; |
---|
1158 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1159 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1160 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1161 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1162 | P0[0] = vce->data; |
---|
1163 | } |
---|
1164 | #ifdef HAVE_TIMECMPR |
---|
1165 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1166 | decData[index] = P0[0]; |
---|
1167 | #endif |
---|
1168 | |
---|
1169 | /* Process Row-0 data 1 --> data r3-1 */ |
---|
1170 | for (j = 1; j < r3; j++) |
---|
1171 | { |
---|
1172 | //index = k*r2*r3+j; |
---|
1173 | index ++; |
---|
1174 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
1175 | curData = spaceFillingValue[index]; |
---|
1176 | diff = spaceFillingValue[index] - pred2D; |
---|
1177 | |
---|
1178 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1179 | |
---|
1180 | if (itvNum < exe_params->intvCapacity) |
---|
1181 | { |
---|
1182 | if (diff < 0) itvNum = -itvNum; |
---|
1183 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1184 | P0[j] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1185 | //ganrantee comporession error against the case of machine-epsilon |
---|
1186 | if(fabs(curData-P0[j])>realPrecision) |
---|
1187 | { |
---|
1188 | type[index] = 0; |
---|
1189 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1190 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1191 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1192 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1193 | |
---|
1194 | P0[j] = vce->data; |
---|
1195 | } |
---|
1196 | } |
---|
1197 | else |
---|
1198 | { |
---|
1199 | type[index] = 0; |
---|
1200 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1201 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1202 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1203 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1204 | P0[j] = vce->data; |
---|
1205 | } |
---|
1206 | #ifdef HAVE_TIMECMPR |
---|
1207 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1208 | decData[index] = P0[j]; |
---|
1209 | #endif |
---|
1210 | } |
---|
1211 | |
---|
1212 | /* Process Row-1 --> Row-r2-1 */ |
---|
1213 | size_t index2D; |
---|
1214 | for (i = 1; i < r2; i++) |
---|
1215 | { |
---|
1216 | /* Process Row-i data 0 */ |
---|
1217 | index = k*r23 + i*r3; |
---|
1218 | index2D = i*r3; |
---|
1219 | pred2D = P0[index2D-r3] + P1[index2D] - P1[index2D-r3]; |
---|
1220 | curData = spaceFillingValue[index]; |
---|
1221 | diff = spaceFillingValue[index] - pred2D; |
---|
1222 | |
---|
1223 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1224 | |
---|
1225 | if (itvNum < exe_params->intvCapacity) |
---|
1226 | { |
---|
1227 | if (diff < 0) itvNum = -itvNum; |
---|
1228 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1229 | P0[index2D] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1230 | //ganrantee comporession error against the case of machine-epsilon |
---|
1231 | if(fabs(curData-P0[index2D])>realPrecision) |
---|
1232 | { |
---|
1233 | type[index] = 0; |
---|
1234 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1235 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1236 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1237 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1238 | |
---|
1239 | P0[index2D] = vce->data; |
---|
1240 | } |
---|
1241 | } |
---|
1242 | else |
---|
1243 | { |
---|
1244 | type[index] = 0; |
---|
1245 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1246 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1247 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1248 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1249 | P0[index2D] = vce->data; |
---|
1250 | } |
---|
1251 | #ifdef HAVE_TIMECMPR |
---|
1252 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1253 | decData[index] = P0[index2D]; |
---|
1254 | #endif |
---|
1255 | |
---|
1256 | /* Process Row-i data 1 --> data r3-1 */ |
---|
1257 | for (j = 1; j < r3; j++) |
---|
1258 | { |
---|
1259 | // if(k==63&&i==43&&j==27) |
---|
1260 | // printf("i=%d\n", i); |
---|
1261 | //index = k*r2*r3 + i*r3 + j; |
---|
1262 | index ++; |
---|
1263 | index2D = i*r3 + j; |
---|
1264 | pred3D = P0[index2D-1] + P0[index2D-r3]+ P1[index2D] - P0[index2D-r3-1] - P1[index2D-r3] - P1[index2D-1] + P1[index2D-r3-1]; |
---|
1265 | curData = spaceFillingValue[index]; |
---|
1266 | diff = curData - pred3D; |
---|
1267 | |
---|
1268 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1269 | |
---|
1270 | if (itvNum < exe_params->intvCapacity) |
---|
1271 | { |
---|
1272 | if (diff < 0) itvNum = -itvNum; |
---|
1273 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1274 | P0[index2D] = pred3D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1275 | |
---|
1276 | //ganrantee comporession error against the case of machine-epsilon |
---|
1277 | if(fabs(curData-P0[index2D])>realPrecision) |
---|
1278 | { |
---|
1279 | type[index] = 0; |
---|
1280 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1281 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1282 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1283 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1284 | |
---|
1285 | P0[index2D] = vce->data; |
---|
1286 | } |
---|
1287 | } |
---|
1288 | else |
---|
1289 | { |
---|
1290 | type[index] = 0; |
---|
1291 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1292 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1293 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1294 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1295 | P0[index2D] = vce->data; |
---|
1296 | } |
---|
1297 | #ifdef HAVE_TIMECMPR |
---|
1298 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1299 | decData[index] = P0[index2D]; |
---|
1300 | #endif |
---|
1301 | } |
---|
1302 | } |
---|
1303 | |
---|
1304 | float *Pt; |
---|
1305 | Pt = P1; |
---|
1306 | P1 = P0; |
---|
1307 | P0 = Pt; |
---|
1308 | } |
---|
1309 | if(r23!=1) |
---|
1310 | free(P0); |
---|
1311 | free(P1); |
---|
1312 | size_t exactDataNum = exactLeadNumArray->size; |
---|
1313 | |
---|
1314 | TightDataPointStorageF* tdps; |
---|
1315 | |
---|
1316 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
1317 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
1318 | exactLeadNumArray->array, |
---|
1319 | resiBitArray->array, resiBitArray->size, |
---|
1320 | resiBitsLength, |
---|
1321 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
1322 | |
---|
1323 | //sdi:Debug |
---|
1324 | /* int sum =0; |
---|
1325 | for(i=0;i<dataLength;i++) |
---|
1326 | if(type[i]==0) sum++; |
---|
1327 | printf("opt_quantizations=%d, exactDataNum=%d, sum=%d\n",quantization_intervals, exactDataNum, sum);*/ |
---|
1328 | |
---|
1329 | |
---|
1330 | // printf("exactDataNum=%d, expSegmentsInBytes_size=%d, exactMidByteArray->size=%d\n", |
---|
1331 | // exactDataNum, expSegmentsInBytes_size, exactMidByteArray->size); |
---|
1332 | |
---|
1333 | //free memory |
---|
1334 | free_DIA(exactLeadNumArray); |
---|
1335 | free_DIA(resiBitArray); |
---|
1336 | free(type); |
---|
1337 | free(vce); |
---|
1338 | free(lce); |
---|
1339 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
1340 | |
---|
1341 | return tdps; |
---|
1342 | } |
---|
1343 | |
---|
1344 | char SZ_compress_args_float_NoCkRngeNoGzip_3D(unsigned char** newByteData, float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f) |
---|
1345 | { |
---|
1346 | size_t dataLength = r1*r2*r3; |
---|
1347 | char compressionType = 0; |
---|
1348 | TightDataPointStorageF* tdps = NULL; |
---|
1349 | |
---|
1350 | #ifdef HAVE_TIMECMPR |
---|
1351 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1352 | { |
---|
1353 | int timestep = sz_tsc->currentStep; |
---|
1354 | if(timestep % confparams_cpr->snapshotCmprStep != 0) |
---|
1355 | { |
---|
1356 | tdps = SZ_compress_float_1D_MDQ_ts(oriData, dataLength, multisteps, realPrecision, valueRangeSize, medianValue_f); |
---|
1357 | compressionType = 1; //time-series based compression |
---|
1358 | } |
---|
1359 | else |
---|
1360 | { |
---|
1361 | if(sz_with_regression == SZ_NO_REGRESSION) |
---|
1362 | tdps = SZ_compress_float_3D_MDQ(oriData, r1, r2, r3, realPrecision, valueRangeSize, medianValue_f); |
---|
1363 | else |
---|
1364 | *newByteData = SZ_compress_float_3D_MDQ_nonblocked_with_blocked_regression(oriData, r1, r2, r3, realPrecision, outSize); |
---|
1365 | compressionType = 0; //snapshot-based compression |
---|
1366 | multisteps->lastSnapshotStep = timestep; |
---|
1367 | } |
---|
1368 | } |
---|
1369 | else |
---|
1370 | #endif |
---|
1371 | tdps = SZ_compress_float_3D_MDQ(oriData, r1, r2, r3, realPrecision, valueRangeSize, medianValue_f); |
---|
1372 | |
---|
1373 | if(tdps!=NULL) |
---|
1374 | { |
---|
1375 | convertTDPStoFlatBytes_float(tdps, newByteData, outSize); |
---|
1376 | if(*outSize>dataLength*sizeof(float)) |
---|
1377 | SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
1378 | free_TightDataPointStorageF(tdps); |
---|
1379 | } |
---|
1380 | |
---|
1381 | return compressionType; |
---|
1382 | } |
---|
1383 | |
---|
1384 | |
---|
1385 | TightDataPointStorageF* SZ_compress_float_4D_MDQ(float *oriData, size_t r1, size_t r2, size_t r3, size_t r4, double realPrecision, float valueRangeSize, float medianValue_f) |
---|
1386 | { |
---|
1387 | unsigned int quantization_intervals; |
---|
1388 | if(exe_params->optQuantMode==1) |
---|
1389 | { |
---|
1390 | quantization_intervals = optimize_intervals_float_4D(oriData, r1, r2, r3, r4, realPrecision); |
---|
1391 | updateQuantizationInfo(quantization_intervals); |
---|
1392 | } |
---|
1393 | else |
---|
1394 | quantization_intervals = exe_params->intvCapacity; |
---|
1395 | |
---|
1396 | size_t i,j,k; |
---|
1397 | int reqLength; |
---|
1398 | float pred1D, pred2D, pred3D; |
---|
1399 | float diff = 0.0; |
---|
1400 | double itvNum = 0; |
---|
1401 | float *P0, *P1; |
---|
1402 | |
---|
1403 | size_t dataLength = r1*r2*r3*r4; |
---|
1404 | |
---|
1405 | size_t r234 = r2*r3*r4; |
---|
1406 | size_t r34 = r3*r4; |
---|
1407 | |
---|
1408 | P0 = (float*)malloc(r34*sizeof(float)); |
---|
1409 | P1 = (float*)malloc(r34*sizeof(float)); |
---|
1410 | |
---|
1411 | float medianValue = medianValue_f; |
---|
1412 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
1413 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
1414 | |
---|
1415 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
1416 | |
---|
1417 | float* spaceFillingValue = oriData; // |
---|
1418 | |
---|
1419 | DynamicIntArray *exactLeadNumArray; |
---|
1420 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
1421 | |
---|
1422 | DynamicByteArray *exactMidByteArray; |
---|
1423 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
1424 | |
---|
1425 | DynamicIntArray *resiBitArray; |
---|
1426 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
1427 | |
---|
1428 | unsigned char preDataBytes[4]; |
---|
1429 | intToBytes_bigEndian(preDataBytes, 0); |
---|
1430 | |
---|
1431 | int reqBytesLength = reqLength/8; |
---|
1432 | int resiBitsLength = reqLength%8; |
---|
1433 | |
---|
1434 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
1435 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
1436 | |
---|
1437 | |
---|
1438 | size_t l; |
---|
1439 | for (l = 0; l < r1; l++) |
---|
1440 | { |
---|
1441 | |
---|
1442 | /////////////////////////// Process layer-0 /////////////////////////// |
---|
1443 | /* Process Row-0 data 0*/ |
---|
1444 | size_t index = l*r234; |
---|
1445 | size_t index2D = 0; |
---|
1446 | |
---|
1447 | type[index] = 0; |
---|
1448 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1449 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1450 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1451 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1452 | P1[index2D] = vce->data; |
---|
1453 | |
---|
1454 | /* Process Row-0 data 1*/ |
---|
1455 | index = l*r234+1; |
---|
1456 | index2D = 1; |
---|
1457 | |
---|
1458 | pred1D = P1[index2D-1]; |
---|
1459 | diff = spaceFillingValue[index] - pred1D; |
---|
1460 | |
---|
1461 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1462 | |
---|
1463 | if (itvNum < exe_params->intvCapacity) |
---|
1464 | { |
---|
1465 | if (diff < 0) itvNum = -itvNum; |
---|
1466 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1467 | P1[index2D] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1468 | } |
---|
1469 | else |
---|
1470 | { |
---|
1471 | type[index] = 0; |
---|
1472 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1473 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1474 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1475 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1476 | P1[index2D] = vce->data; |
---|
1477 | } |
---|
1478 | |
---|
1479 | /* Process Row-0 data 2 --> data r4-1 */ |
---|
1480 | for (j = 2; j < r4; j++) |
---|
1481 | { |
---|
1482 | index = l*r234+j; |
---|
1483 | index2D = j; |
---|
1484 | |
---|
1485 | pred1D = 2*P1[index2D-1] - P1[index2D-2]; |
---|
1486 | diff = spaceFillingValue[index] - pred1D; |
---|
1487 | |
---|
1488 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1489 | |
---|
1490 | if (itvNum < exe_params->intvCapacity) |
---|
1491 | { |
---|
1492 | if (diff < 0) itvNum = -itvNum; |
---|
1493 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1494 | P1[index2D] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1495 | } |
---|
1496 | else |
---|
1497 | { |
---|
1498 | type[index] = 0; |
---|
1499 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1500 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1501 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1502 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1503 | P1[index2D] = vce->data; |
---|
1504 | } |
---|
1505 | } |
---|
1506 | |
---|
1507 | /* Process Row-1 --> Row-r3-1 */ |
---|
1508 | for (i = 1; i < r3; i++) |
---|
1509 | { |
---|
1510 | /* Process row-i data 0 */ |
---|
1511 | index = l*r234+i*r4; |
---|
1512 | index2D = i*r4; |
---|
1513 | |
---|
1514 | pred1D = P1[index2D-r4]; |
---|
1515 | diff = spaceFillingValue[index] - pred1D; |
---|
1516 | |
---|
1517 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1518 | |
---|
1519 | if (itvNum < exe_params->intvCapacity) |
---|
1520 | { |
---|
1521 | if (diff < 0) itvNum = -itvNum; |
---|
1522 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1523 | P1[index2D] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1524 | } |
---|
1525 | else |
---|
1526 | { |
---|
1527 | type[index] = 0; |
---|
1528 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1529 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1530 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1531 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1532 | P1[index2D] = vce->data; |
---|
1533 | } |
---|
1534 | |
---|
1535 | /* Process row-i data 1 --> data r4-1*/ |
---|
1536 | for (j = 1; j < r4; j++) |
---|
1537 | { |
---|
1538 | index = l*r234+i*r4+j; |
---|
1539 | index2D = i*r4+j; |
---|
1540 | |
---|
1541 | pred2D = P1[index2D-1] + P1[index2D-r4] - P1[index2D-r4-1]; |
---|
1542 | |
---|
1543 | diff = spaceFillingValue[index] - pred2D; |
---|
1544 | |
---|
1545 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1546 | |
---|
1547 | if (itvNum < exe_params->intvCapacity) |
---|
1548 | { |
---|
1549 | if (diff < 0) itvNum = -itvNum; |
---|
1550 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1551 | P1[index2D] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1552 | } |
---|
1553 | else |
---|
1554 | { |
---|
1555 | type[index] = 0; |
---|
1556 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1557 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1558 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1559 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1560 | P1[index2D] = vce->data; |
---|
1561 | } |
---|
1562 | } |
---|
1563 | } |
---|
1564 | |
---|
1565 | |
---|
1566 | /////////////////////////// Process layer-1 --> layer-r2-1 /////////////////////////// |
---|
1567 | |
---|
1568 | for (k = 1; k < r2; k++) |
---|
1569 | { |
---|
1570 | /* Process Row-0 data 0*/ |
---|
1571 | index = l*r234+k*r34; |
---|
1572 | index2D = 0; |
---|
1573 | |
---|
1574 | pred1D = P1[index2D]; |
---|
1575 | diff = spaceFillingValue[index] - pred1D; |
---|
1576 | |
---|
1577 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1578 | |
---|
1579 | if (itvNum < exe_params->intvCapacity) |
---|
1580 | { |
---|
1581 | if (diff < 0) itvNum = -itvNum; |
---|
1582 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1583 | P0[index2D] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1584 | } |
---|
1585 | else |
---|
1586 | { |
---|
1587 | type[index] = 0; |
---|
1588 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1589 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1590 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1591 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1592 | P0[index2D] = vce->data; |
---|
1593 | } |
---|
1594 | |
---|
1595 | /* Process Row-0 data 1 --> data r4-1 */ |
---|
1596 | for (j = 1; j < r4; j++) |
---|
1597 | { |
---|
1598 | index = l*r234+k*r34+j; |
---|
1599 | index2D = j; |
---|
1600 | |
---|
1601 | pred2D = P0[index2D-1] + P1[index2D] - P1[index2D-1]; |
---|
1602 | diff = spaceFillingValue[index] - pred2D; |
---|
1603 | |
---|
1604 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1605 | |
---|
1606 | if (itvNum < exe_params->intvCapacity) |
---|
1607 | { |
---|
1608 | if (diff < 0) itvNum = -itvNum; |
---|
1609 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1610 | P0[index2D] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1611 | } |
---|
1612 | else |
---|
1613 | { |
---|
1614 | type[index] = 0; |
---|
1615 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1616 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1617 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1618 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1619 | P0[index2D] = vce->data; |
---|
1620 | } |
---|
1621 | } |
---|
1622 | |
---|
1623 | /* Process Row-1 --> Row-r3-1 */ |
---|
1624 | for (i = 1; i < r3; i++) |
---|
1625 | { |
---|
1626 | /* Process Row-i data 0 */ |
---|
1627 | index = l*r234+k*r34+i*r4; |
---|
1628 | index2D = i*r4; |
---|
1629 | |
---|
1630 | pred2D = P0[index2D-r4] + P1[index2D] - P1[index2D-r4]; |
---|
1631 | diff = spaceFillingValue[index] - pred2D; |
---|
1632 | |
---|
1633 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1634 | |
---|
1635 | if (itvNum < exe_params->intvCapacity) |
---|
1636 | { |
---|
1637 | if (diff < 0) itvNum = -itvNum; |
---|
1638 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1639 | P0[index2D] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1640 | } |
---|
1641 | else |
---|
1642 | { |
---|
1643 | type[index] = 0; |
---|
1644 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1645 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1646 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1647 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1648 | P0[index2D] = vce->data; |
---|
1649 | } |
---|
1650 | |
---|
1651 | /* Process Row-i data 1 --> data r4-1 */ |
---|
1652 | for (j = 1; j < r4; j++) |
---|
1653 | { |
---|
1654 | index = l*r234+k*r34+i*r4+j; |
---|
1655 | index2D = i*r4+j; |
---|
1656 | |
---|
1657 | pred3D = P0[index2D-1] + P0[index2D-r4]+ P1[index2D] - P0[index2D-r4-1] - P1[index2D-r4] - P1[index2D-1] + P1[index2D-r4-1]; |
---|
1658 | diff = spaceFillingValue[index] - pred3D; |
---|
1659 | |
---|
1660 | |
---|
1661 | itvNum = fabs(diff)/realPrecision + 1; |
---|
1662 | |
---|
1663 | if (itvNum < exe_params->intvCapacity) |
---|
1664 | { |
---|
1665 | if (diff < 0) itvNum = -itvNum; |
---|
1666 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
1667 | P0[index2D] = pred3D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
1668 | } |
---|
1669 | else |
---|
1670 | { |
---|
1671 | type[index] = 0; |
---|
1672 | compressSingleFloatValue(vce, spaceFillingValue[index], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
1673 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
1674 | memcpy(preDataBytes,vce->curBytes,4); |
---|
1675 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
1676 | P0[index2D] = vce->data; |
---|
1677 | } |
---|
1678 | } |
---|
1679 | } |
---|
1680 | |
---|
1681 | float *Pt; |
---|
1682 | Pt = P1; |
---|
1683 | P1 = P0; |
---|
1684 | P0 = Pt; |
---|
1685 | } |
---|
1686 | } |
---|
1687 | |
---|
1688 | free(P0); |
---|
1689 | free(P1); |
---|
1690 | size_t exactDataNum = exactLeadNumArray->size; |
---|
1691 | |
---|
1692 | TightDataPointStorageF* tdps; |
---|
1693 | |
---|
1694 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
1695 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
1696 | exactLeadNumArray->array, |
---|
1697 | resiBitArray->array, resiBitArray->size, |
---|
1698 | resiBitsLength, |
---|
1699 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
1700 | |
---|
1701 | //free memory |
---|
1702 | free_DIA(exactLeadNumArray); |
---|
1703 | free_DIA(resiBitArray); |
---|
1704 | free(type); |
---|
1705 | free(vce); |
---|
1706 | free(lce); |
---|
1707 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
1708 | |
---|
1709 | return tdps; |
---|
1710 | } |
---|
1711 | |
---|
1712 | char SZ_compress_args_float_NoCkRngeNoGzip_4D(unsigned char** newByteData, float *oriData, size_t r1, size_t r2, size_t r3, size_t r4, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f) |
---|
1713 | { |
---|
1714 | TightDataPointStorageF* tdps = SZ_compress_float_4D_MDQ(oriData, r1, r2, r3, r4, realPrecision, valueRangeSize, medianValue_f); |
---|
1715 | |
---|
1716 | convertTDPStoFlatBytes_float(tdps, newByteData, outSize); |
---|
1717 | |
---|
1718 | int dataLength = r1*r2*r3*r4; |
---|
1719 | if(*outSize>dataLength*sizeof(float)) |
---|
1720 | SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
1721 | |
---|
1722 | free_TightDataPointStorageF(tdps); |
---|
1723 | |
---|
1724 | return 0; |
---|
1725 | } |
---|
1726 | |
---|
1727 | void SZ_compress_args_float_withinRange(unsigned char** newByteData, float *oriData, size_t dataLength, size_t *outSize) |
---|
1728 | { |
---|
1729 | TightDataPointStorageF* tdps = (TightDataPointStorageF*) malloc(sizeof(TightDataPointStorageF)); |
---|
1730 | tdps->rtypeArray = NULL; |
---|
1731 | tdps->typeArray = NULL; |
---|
1732 | tdps->leadNumArray = NULL; |
---|
1733 | tdps->residualMidBits = NULL; |
---|
1734 | |
---|
1735 | tdps->allSameData = 1; |
---|
1736 | tdps->dataSeriesLength = dataLength; |
---|
1737 | tdps->exactMidBytes = (unsigned char*)malloc(sizeof(unsigned char)*4); |
---|
1738 | tdps->pwrErrBoundBytes = NULL; |
---|
1739 | tdps->isLossless = 0; |
---|
1740 | float value = oriData[0]; |
---|
1741 | floatToBytes(tdps->exactMidBytes, value); |
---|
1742 | tdps->exactMidBytes_size = 4; |
---|
1743 | |
---|
1744 | size_t tmpOutSize; |
---|
1745 | //unsigned char *tmpByteData; |
---|
1746 | convertTDPStoFlatBytes_float(tdps, newByteData, &tmpOutSize); |
---|
1747 | |
---|
1748 | //*newByteData = (unsigned char*)malloc(sizeof(unsigned char)*12); //for floating-point data (1+3+4+4) |
---|
1749 | //memcpy(*newByteData, tmpByteData, 12); |
---|
1750 | *outSize = tmpOutSize; //8+SZ_SIZE_TYPE; //8==3+1+4(float_size) |
---|
1751 | free_TightDataPointStorageF(tdps); |
---|
1752 | } |
---|
1753 | |
---|
1754 | int SZ_compress_args_float_wRngeNoGzip(unsigned char** newByteData, float *oriData, |
---|
1755 | size_t r5, size_t r4, size_t r3, size_t r2, size_t r1, size_t *outSize, |
---|
1756 | int errBoundMode, double absErr_Bound, double relBoundRatio, double pwrErrRatio) |
---|
1757 | { |
---|
1758 | int status = SZ_SCES; |
---|
1759 | size_t dataLength = computeDataLength(r5,r4,r3,r2,r1); |
---|
1760 | float valueRangeSize = 0, medianValue = 0; |
---|
1761 | |
---|
1762 | float min = computeRangeSize_float(oriData, dataLength, &valueRangeSize, &medianValue); |
---|
1763 | float max = min+valueRangeSize; |
---|
1764 | double realPrecision = getRealPrecision_float(valueRangeSize, errBoundMode, absErr_Bound, relBoundRatio, &status); |
---|
1765 | |
---|
1766 | if(valueRangeSize <= realPrecision) |
---|
1767 | { |
---|
1768 | SZ_compress_args_float_withinRange(newByteData, oriData, dataLength, outSize); |
---|
1769 | } |
---|
1770 | else |
---|
1771 | { |
---|
1772 | // SZ_compress_args_float_NoCkRngeNoGzip_2D(newByteData, oriData, r2, r1, realPrecision, outSize); |
---|
1773 | if(r5==0&&r4==0&&r3==0&&r2==0) |
---|
1774 | { |
---|
1775 | if(errBoundMode>=PW_REL) |
---|
1776 | { |
---|
1777 | SZ_compress_args_float_NoCkRngeNoGzip_1D_pwr_pre_log(newByteData, oriData, pwrErrRatio, r1, outSize, min, max); |
---|
1778 | //SZ_compress_args_float_NoCkRngeNoGzip_1D_pwrgroup(newByteData, oriData, r1, absErr_Bound, relBoundRatio, pwrErrRatio, valueRangeSize, medianValue, outSize); |
---|
1779 | } |
---|
1780 | else |
---|
1781 | SZ_compress_args_float_NoCkRngeNoGzip_1D(newByteData, oriData, r1, realPrecision, outSize, valueRangeSize, medianValue); |
---|
1782 | } |
---|
1783 | else if(r5==0&&r4==0&&r3==0) |
---|
1784 | { |
---|
1785 | if(errBoundMode>=PW_REL) |
---|
1786 | SZ_compress_args_float_NoCkRngeNoGzip_2D_pwr_pre_log(newByteData, oriData, pwrErrRatio, r2, r1, outSize, min, max); |
---|
1787 | else |
---|
1788 | SZ_compress_args_float_NoCkRngeNoGzip_2D(newByteData, oriData, r2, r1, realPrecision, outSize, valueRangeSize, medianValue); |
---|
1789 | } |
---|
1790 | else if(r5==0&&r4==0) |
---|
1791 | { |
---|
1792 | if(errBoundMode>=PW_REL) |
---|
1793 | SZ_compress_args_float_NoCkRngeNoGzip_3D_pwr_pre_log(newByteData, oriData, pwrErrRatio, r3, r2, r1, outSize, min, max); |
---|
1794 | else |
---|
1795 | SZ_compress_args_float_NoCkRngeNoGzip_3D(newByteData, oriData, r3, r2, r1, realPrecision, outSize, valueRangeSize, medianValue); |
---|
1796 | } |
---|
1797 | else if(r5==0) |
---|
1798 | { |
---|
1799 | if(errBoundMode>=PW_REL) |
---|
1800 | SZ_compress_args_float_NoCkRngeNoGzip_3D_pwr_pre_log(newByteData, oriData, pwrErrRatio, r4*r3, r2, r1, outSize, min, max); |
---|
1801 | else |
---|
1802 | SZ_compress_args_float_NoCkRngeNoGzip_3D(newByteData, oriData, r4*r3, r2, r1, realPrecision, outSize, valueRangeSize, medianValue); |
---|
1803 | } |
---|
1804 | } |
---|
1805 | return status; |
---|
1806 | } |
---|
1807 | |
---|
1808 | int SZ_compress_args_float(unsigned char** newByteData, float *oriData, |
---|
1809 | size_t r5, size_t r4, size_t r3, size_t r2, size_t r1, size_t *outSize, |
---|
1810 | int errBoundMode, double absErr_Bound, double relBoundRatio, double pwRelBoundRatio) |
---|
1811 | { |
---|
1812 | confparams_cpr->errorBoundMode = errBoundMode; |
---|
1813 | if(errBoundMode==PW_REL) |
---|
1814 | { |
---|
1815 | confparams_cpr->pw_relBoundRatio = pwRelBoundRatio; |
---|
1816 | //confparams_cpr->pwr_type = SZ_PWR_MIN_TYPE; |
---|
1817 | if(confparams_cpr->pwr_type==SZ_PWR_AVG_TYPE && r3 != 0 ) |
---|
1818 | { |
---|
1819 | printf("Error: Current version doesn't support 3D data compression with point-wise relative error bound being based on pwrType=AVG\n"); |
---|
1820 | exit(0); |
---|
1821 | return SZ_NSCS; |
---|
1822 | } |
---|
1823 | } |
---|
1824 | int status = SZ_SCES; |
---|
1825 | size_t dataLength = computeDataLength(r5,r4,r3,r2,r1); |
---|
1826 | |
---|
1827 | if(dataLength <= MIN_NUM_OF_ELEMENTS) |
---|
1828 | { |
---|
1829 | *newByteData = SZ_skip_compress_float(oriData, dataLength, outSize); |
---|
1830 | return status; |
---|
1831 | } |
---|
1832 | |
---|
1833 | float valueRangeSize = 0, medianValue = 0; |
---|
1834 | |
---|
1835 | float min = computeRangeSize_float(oriData, dataLength, &valueRangeSize, &medianValue); |
---|
1836 | float max = min+valueRangeSize; |
---|
1837 | double realPrecision = 0; |
---|
1838 | |
---|
1839 | if(confparams_cpr->errorBoundMode==PSNR) |
---|
1840 | { |
---|
1841 | confparams_cpr->errorBoundMode = ABS; |
---|
1842 | realPrecision = confparams_cpr->absErrBound = computeABSErrBoundFromPSNR(confparams_cpr->psnr, (double)confparams_cpr->predThreshold, (double)valueRangeSize); |
---|
1843 | //printf("realPrecision=%lf\n", realPrecision); |
---|
1844 | } |
---|
1845 | else |
---|
1846 | realPrecision = getRealPrecision_float(valueRangeSize, errBoundMode, absErr_Bound, relBoundRatio, &status); |
---|
1847 | |
---|
1848 | if(valueRangeSize <= realPrecision) |
---|
1849 | { |
---|
1850 | SZ_compress_args_float_withinRange(newByteData, oriData, dataLength, outSize); |
---|
1851 | } |
---|
1852 | else |
---|
1853 | { |
---|
1854 | size_t tmpOutSize = 0; |
---|
1855 | unsigned char* tmpByteData; |
---|
1856 | |
---|
1857 | if (r2==0) |
---|
1858 | { |
---|
1859 | if(confparams_cpr->errorBoundMode>=PW_REL) |
---|
1860 | { |
---|
1861 | SZ_compress_args_float_NoCkRngeNoGzip_1D_pwr_pre_log(&tmpByteData, oriData, pwRelBoundRatio, r1, &tmpOutSize, min, max); |
---|
1862 | //SZ_compress_args_float_NoCkRngeNoGzip_1D_pwrgroup(&tmpByteData, oriData, r1, absErr_Bound, relBoundRatio, pwRelBoundRatio, valueRangeSize, medianValue, &tmpOutSize); |
---|
1863 | } |
---|
1864 | else |
---|
1865 | #ifdef HAVE_TIMECMPR |
---|
1866 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1867 | multisteps->compressionType = SZ_compress_args_float_NoCkRngeNoGzip_1D(&tmpByteData, oriData, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1868 | else |
---|
1869 | #endif |
---|
1870 | SZ_compress_args_float_NoCkRngeNoGzip_1D(&tmpByteData, oriData, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1871 | } |
---|
1872 | else |
---|
1873 | if (r3==0) |
---|
1874 | { |
---|
1875 | if(confparams_cpr->errorBoundMode>=PW_REL) |
---|
1876 | SZ_compress_args_float_NoCkRngeNoGzip_2D_pwr_pre_log(&tmpByteData, oriData, pwRelBoundRatio, r2, r1, &tmpOutSize, min, max); |
---|
1877 | else |
---|
1878 | #ifdef HAVE_TIMECMPR |
---|
1879 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1880 | multisteps->compressionType = SZ_compress_args_float_NoCkRngeNoGzip_2D(&tmpByteData, oriData, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1881 | else |
---|
1882 | #endif |
---|
1883 | { |
---|
1884 | if(sz_with_regression == SZ_NO_REGRESSION) |
---|
1885 | SZ_compress_args_float_NoCkRngeNoGzip_2D(&tmpByteData, oriData, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1886 | else |
---|
1887 | tmpByteData = SZ_compress_float_2D_MDQ_nonblocked_with_blocked_regression(oriData, r2, r1, realPrecision, &tmpOutSize); |
---|
1888 | } |
---|
1889 | } |
---|
1890 | else |
---|
1891 | if (r4==0) |
---|
1892 | { |
---|
1893 | if(confparams_cpr->errorBoundMode>=PW_REL) |
---|
1894 | SZ_compress_args_float_NoCkRngeNoGzip_3D_pwr_pre_log(&tmpByteData, oriData, pwRelBoundRatio, r3, r2, r1, &tmpOutSize, min, max); |
---|
1895 | else |
---|
1896 | #ifdef HAVE_TIMECMPR |
---|
1897 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1898 | multisteps->compressionType = SZ_compress_args_float_NoCkRngeNoGzip_3D(&tmpByteData, oriData, r3, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1899 | else |
---|
1900 | #endif |
---|
1901 | { |
---|
1902 | if(sz_with_regression == SZ_NO_REGRESSION) |
---|
1903 | SZ_compress_args_float_NoCkRngeNoGzip_3D(&tmpByteData, oriData, r3, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1904 | else |
---|
1905 | tmpByteData = SZ_compress_float_3D_MDQ_nonblocked_with_blocked_regression(oriData, r3, r2, r1, realPrecision, &tmpOutSize); |
---|
1906 | } |
---|
1907 | } |
---|
1908 | else |
---|
1909 | if (r5==0) |
---|
1910 | { |
---|
1911 | if(confparams_cpr->errorBoundMode>=PW_REL) |
---|
1912 | SZ_compress_args_float_NoCkRngeNoGzip_3D_pwr_pre_log(&tmpByteData, oriData, pwRelBoundRatio, r4*r3, r2, r1, &tmpOutSize, min, max); |
---|
1913 | //ToDO |
---|
1914 | //SZ_compress_args_float_NoCkRngeNoGzip_4D_pwr(&tmpByteData, oriData, r4, r3, r2, r1, &tmpOutSize, min, max); |
---|
1915 | else |
---|
1916 | #ifdef HAVE_TIMECMPR |
---|
1917 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
1918 | multisteps->compressionType = SZ_compress_args_float_NoCkRngeNoGzip_4D(&tmpByteData, oriData, r4, r3, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1919 | else |
---|
1920 | #endif |
---|
1921 | { |
---|
1922 | if(sz_with_regression == SZ_NO_REGRESSION) |
---|
1923 | SZ_compress_args_float_NoCkRngeNoGzip_4D(&tmpByteData, oriData, r4, r3, r2, r1, realPrecision, &tmpOutSize, valueRangeSize, medianValue); |
---|
1924 | else |
---|
1925 | tmpByteData = SZ_compress_float_3D_MDQ_nonblocked_with_blocked_regression(oriData, r4*r3, r2, r1, realPrecision, &tmpOutSize); |
---|
1926 | } |
---|
1927 | } |
---|
1928 | else |
---|
1929 | { |
---|
1930 | printf("Error: doesn't support 5 dimensions for now.\n"); |
---|
1931 | status = SZ_DERR; //dimension error |
---|
1932 | } |
---|
1933 | //Call Gzip to do the further compression. |
---|
1934 | if(confparams_cpr->szMode==SZ_BEST_SPEED) |
---|
1935 | { |
---|
1936 | *outSize = tmpOutSize; |
---|
1937 | *newByteData = tmpByteData; |
---|
1938 | } |
---|
1939 | else if(confparams_cpr->szMode==SZ_BEST_COMPRESSION || confparams_cpr->szMode==SZ_DEFAULT_COMPRESSION || confparams_cpr->szMode==SZ_TEMPORAL_COMPRESSION) |
---|
1940 | { |
---|
1941 | *outSize = sz_lossless_compress(confparams_cpr->losslessCompressor, confparams_cpr->gzipMode, tmpByteData, tmpOutSize, newByteData); |
---|
1942 | free(tmpByteData); |
---|
1943 | } |
---|
1944 | else |
---|
1945 | { |
---|
1946 | printf("Error: Wrong setting of confparams_cpr->szMode in the float compression.\n"); |
---|
1947 | status = SZ_MERR; //mode error |
---|
1948 | } |
---|
1949 | } |
---|
1950 | |
---|
1951 | return status; |
---|
1952 | } |
---|
1953 | |
---|
1954 | |
---|
1955 | void computeReqLength_float(double realPrecision, short radExpo, int* reqLength, float* medianValue) |
---|
1956 | { |
---|
1957 | short reqExpo = getPrecisionReqLength_double(realPrecision); |
---|
1958 | *reqLength = 9+radExpo - reqExpo; //radExpo-reqExpo == reqMantiLength |
---|
1959 | if(*reqLength<9) |
---|
1960 | *reqLength = 9; |
---|
1961 | if(*reqLength>32) |
---|
1962 | { |
---|
1963 | *reqLength = 32; |
---|
1964 | *medianValue = 0; |
---|
1965 | } |
---|
1966 | } |
---|
1967 | |
---|
1968 | //TODO |
---|
1969 | int SZ_compress_args_float_subblock(unsigned char* compressedBytes, float *oriData, |
---|
1970 | size_t r5, size_t r4, size_t r3, size_t r2, size_t r1, |
---|
1971 | size_t s5, size_t s4, size_t s3, size_t s2, size_t s1, |
---|
1972 | size_t e5, size_t e4, size_t e3, size_t e2, size_t e1, |
---|
1973 | size_t *outSize, int errBoundMode, double absErr_Bound, double relBoundRatio) |
---|
1974 | { |
---|
1975 | int status = SZ_SCES; |
---|
1976 | float valueRangeSize = 0, medianValue = 0; |
---|
1977 | computeRangeSize_float_subblock(oriData, &valueRangeSize, &medianValue, r5, r4, r3, r2, r1, s5, s4, s3, s2, s1, e5, e4, e3, e2, e1); |
---|
1978 | |
---|
1979 | double realPrecision = getRealPrecision_float(valueRangeSize, errBoundMode, absErr_Bound, relBoundRatio, &status); |
---|
1980 | |
---|
1981 | if(valueRangeSize <= realPrecision) |
---|
1982 | { |
---|
1983 | //TODO |
---|
1984 | //SZ_compress_args_float_withinRange_subblock(); |
---|
1985 | } |
---|
1986 | else |
---|
1987 | { |
---|
1988 | if (r2==0) |
---|
1989 | { |
---|
1990 | if(errBoundMode>=PW_REL) |
---|
1991 | { |
---|
1992 | //TODO |
---|
1993 | //SZ_compress_args_float_NoCkRngeNoGzip_1D_pwr_subblock(); |
---|
1994 | printf ("Current subblock version does not support point-wise relative error bound.\n"); |
---|
1995 | } |
---|
1996 | else |
---|
1997 | SZ_compress_args_float_NoCkRnge_1D_subblock(compressedBytes, oriData, realPrecision, outSize, valueRangeSize, medianValue, r1, s1, e1); |
---|
1998 | } |
---|
1999 | else |
---|
2000 | if (r3==0) |
---|
2001 | { |
---|
2002 | //TODO |
---|
2003 | if(errBoundMode>=PW_REL) |
---|
2004 | { |
---|
2005 | //TODO |
---|
2006 | //SZ_compress_args_float_NoCkRngeNoGzip_2D_pwr_subblock(); |
---|
2007 | printf ("Current subblock version does not support point-wise relative error bound.\n"); |
---|
2008 | } |
---|
2009 | else |
---|
2010 | SZ_compress_args_float_NoCkRnge_2D_subblock(compressedBytes, oriData, realPrecision, outSize, valueRangeSize, medianValue, r2, r1, s2, s1, e2, e1); |
---|
2011 | } |
---|
2012 | else |
---|
2013 | if (r4==0) |
---|
2014 | { |
---|
2015 | if(errBoundMode>=PW_REL) |
---|
2016 | { |
---|
2017 | //TODO |
---|
2018 | //SZ_compress_args_float_NoCkRngeNoGzip_3D_pwr_subblock(); |
---|
2019 | printf ("Current subblock version does not support point-wise relative error bound.\n"); |
---|
2020 | } |
---|
2021 | else |
---|
2022 | SZ_compress_args_float_NoCkRnge_3D_subblock(compressedBytes, oriData, realPrecision, outSize, valueRangeSize, medianValue, r3, r2, r1, s3, s2, s1, e3, e2, e1); |
---|
2023 | } |
---|
2024 | else |
---|
2025 | if (r5==0) |
---|
2026 | { |
---|
2027 | if(errBoundMode>=PW_REL) |
---|
2028 | { |
---|
2029 | //TODO |
---|
2030 | //SZ_compress_args_float_NoCkRngeNoGzip_4D_pwr_subblock(); |
---|
2031 | printf ("Current subblock version does not support point-wise relative error bound.\n"); |
---|
2032 | } |
---|
2033 | else |
---|
2034 | SZ_compress_args_float_NoCkRnge_4D_subblock(compressedBytes, oriData, realPrecision, outSize, valueRangeSize, medianValue, r4, r3, r2, r1, s4, s3, s2, s1, e4, e3, e2, e1); |
---|
2035 | } |
---|
2036 | else |
---|
2037 | { |
---|
2038 | printf("Error: doesn't support 5 dimensions for now.\n"); |
---|
2039 | status = SZ_DERR; //dimension error |
---|
2040 | } |
---|
2041 | } |
---|
2042 | return status; |
---|
2043 | } |
---|
2044 | |
---|
2045 | void SZ_compress_args_float_NoCkRnge_1D_subblock(unsigned char* compressedBytes, float *oriData, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f, |
---|
2046 | size_t r1, size_t s1, size_t e1) |
---|
2047 | { |
---|
2048 | TightDataPointStorageF* tdps = SZ_compress_float_1D_MDQ_subblock(oriData, realPrecision, valueRangeSize, medianValue_f, r1, s1, e1); |
---|
2049 | |
---|
2050 | if (confparams_cpr->szMode==SZ_BEST_SPEED) |
---|
2051 | convertTDPStoFlatBytes_float_args(tdps, compressedBytes, outSize); |
---|
2052 | else if(confparams_cpr->szMode==SZ_BEST_COMPRESSION || confparams_cpr->szMode==SZ_DEFAULT_COMPRESSION) |
---|
2053 | { |
---|
2054 | unsigned char *tmpCompBytes; |
---|
2055 | size_t tmpOutSize; |
---|
2056 | convertTDPStoFlatBytes_float(tdps, &tmpCompBytes, &tmpOutSize); |
---|
2057 | *outSize = zlib_compress3(tmpCompBytes, tmpOutSize, compressedBytes, confparams_cpr->gzipMode); |
---|
2058 | free(tmpCompBytes); |
---|
2059 | } |
---|
2060 | else |
---|
2061 | { |
---|
2062 | printf ("Error: Wrong setting of confparams_cpr->szMode in the double compression.\n"); |
---|
2063 | } |
---|
2064 | |
---|
2065 | //TODO |
---|
2066 | // if(*outSize>dataLength*sizeof(float)) |
---|
2067 | // SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
2068 | |
---|
2069 | free_TightDataPointStorageF(tdps); |
---|
2070 | } |
---|
2071 | |
---|
2072 | void SZ_compress_args_float_NoCkRnge_2D_subblock(unsigned char* compressedBytes, float *oriData, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f, |
---|
2073 | size_t r2, size_t r1, size_t s2, size_t s1, size_t e2, size_t e1) |
---|
2074 | { |
---|
2075 | TightDataPointStorageF* tdps = SZ_compress_float_2D_MDQ_subblock(oriData, realPrecision, valueRangeSize, medianValue_f, r2, r1, s2, s1, e2, e1); |
---|
2076 | |
---|
2077 | if (confparams_cpr->szMode==SZ_BEST_SPEED) |
---|
2078 | convertTDPStoFlatBytes_float_args(tdps, compressedBytes, outSize); |
---|
2079 | else if(confparams_cpr->szMode==SZ_BEST_COMPRESSION || confparams_cpr->szMode==SZ_DEFAULT_COMPRESSION) |
---|
2080 | { |
---|
2081 | unsigned char *tmpCompBytes; |
---|
2082 | size_t tmpOutSize; |
---|
2083 | convertTDPStoFlatBytes_float(tdps, &tmpCompBytes, &tmpOutSize); |
---|
2084 | *outSize = zlib_compress3(tmpCompBytes, tmpOutSize, compressedBytes, confparams_cpr->gzipMode); |
---|
2085 | free(tmpCompBytes); |
---|
2086 | } |
---|
2087 | else |
---|
2088 | { |
---|
2089 | printf ("Error: Wrong setting of confparams_cpr->szMode in the double compression.\n"); |
---|
2090 | } |
---|
2091 | |
---|
2092 | //TODO |
---|
2093 | // if(*outSize>dataLength*sizeof(float)) |
---|
2094 | // SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
2095 | |
---|
2096 | free_TightDataPointStorageF(tdps); |
---|
2097 | } |
---|
2098 | |
---|
2099 | void SZ_compress_args_float_NoCkRnge_3D_subblock(unsigned char* compressedBytes, float *oriData, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f, |
---|
2100 | size_t r3, size_t r2, size_t r1, size_t s3, size_t s2, size_t s1, size_t e3, size_t e2, size_t e1) |
---|
2101 | { |
---|
2102 | TightDataPointStorageF* tdps = SZ_compress_float_3D_MDQ_subblock(oriData, realPrecision, valueRangeSize, medianValue_f, r3, r2, r1, s3, s2, s1, e3, e2, e1); |
---|
2103 | |
---|
2104 | if (confparams_cpr->szMode==SZ_BEST_SPEED) |
---|
2105 | convertTDPStoFlatBytes_float_args(tdps, compressedBytes, outSize); |
---|
2106 | else if(confparams_cpr->szMode==SZ_BEST_COMPRESSION || confparams_cpr->szMode==SZ_DEFAULT_COMPRESSION) |
---|
2107 | { |
---|
2108 | unsigned char *tmpCompBytes; |
---|
2109 | size_t tmpOutSize; |
---|
2110 | convertTDPStoFlatBytes_float(tdps, &tmpCompBytes, &tmpOutSize); |
---|
2111 | *outSize = zlib_compress3(tmpCompBytes, tmpOutSize, compressedBytes, confparams_cpr->gzipMode); |
---|
2112 | free(tmpCompBytes); |
---|
2113 | } |
---|
2114 | else |
---|
2115 | { |
---|
2116 | printf ("Error: Wrong setting of confparams_cpr->szMode in the double compression.\n"); |
---|
2117 | } |
---|
2118 | |
---|
2119 | //TODO |
---|
2120 | // if(*outSize>dataLength*sizeof(float)) |
---|
2121 | // SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
2122 | |
---|
2123 | free_TightDataPointStorageF(tdps); |
---|
2124 | } |
---|
2125 | |
---|
2126 | void SZ_compress_args_float_NoCkRnge_4D_subblock(unsigned char* compressedBytes, float *oriData, double realPrecision, size_t *outSize, float valueRangeSize, float medianValue_f, |
---|
2127 | size_t r4, size_t r3, size_t r2, size_t r1, size_t s4, size_t s3, size_t s2, size_t s1, size_t e4, size_t e3, size_t e2, size_t e1) |
---|
2128 | { |
---|
2129 | TightDataPointStorageF* tdps = SZ_compress_float_4D_MDQ_subblock(oriData, realPrecision, valueRangeSize, medianValue_f, r4, r3, r2, r1, s4, s3, s2, s1, e4, e3, e2, e1); |
---|
2130 | |
---|
2131 | if (confparams_cpr->szMode==SZ_BEST_SPEED) |
---|
2132 | convertTDPStoFlatBytes_float_args(tdps, compressedBytes, outSize); |
---|
2133 | else if(confparams_cpr->szMode==SZ_BEST_COMPRESSION || confparams_cpr->szMode==SZ_DEFAULT_COMPRESSION) |
---|
2134 | { |
---|
2135 | unsigned char *tmpCompBytes; |
---|
2136 | size_t tmpOutSize; |
---|
2137 | convertTDPStoFlatBytes_float(tdps, &tmpCompBytes, &tmpOutSize); |
---|
2138 | *outSize = zlib_compress3(tmpCompBytes, tmpOutSize, compressedBytes, confparams_cpr->gzipMode); |
---|
2139 | free(tmpCompBytes); |
---|
2140 | } |
---|
2141 | else |
---|
2142 | { |
---|
2143 | printf ("Error: Wrong setting of confparams_cpr->szMode in the double compression.\n"); |
---|
2144 | } |
---|
2145 | |
---|
2146 | //TODO |
---|
2147 | // if(*outSize>dataLength*sizeof(float)) |
---|
2148 | // SZ_compress_args_float_StoreOriData(oriData, dataLength, tdps, newByteData, outSize); |
---|
2149 | |
---|
2150 | free_TightDataPointStorageF(tdps); |
---|
2151 | |
---|
2152 | } |
---|
2153 | |
---|
2154 | unsigned int optimize_intervals_float_1D_subblock(float *oriData, double realPrecision, size_t r1, size_t s1, size_t e1) |
---|
2155 | { |
---|
2156 | size_t dataLength = e1 - s1 + 1; |
---|
2157 | oriData = oriData + s1; |
---|
2158 | |
---|
2159 | size_t i = 0; |
---|
2160 | unsigned long radiusIndex; |
---|
2161 | float pred_value = 0, pred_err; |
---|
2162 | int *intervals = (int*)malloc(confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2163 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2164 | size_t totalSampleSize = dataLength/confparams_cpr->sampleDistance; |
---|
2165 | for(i=2;i<dataLength;i++) |
---|
2166 | { |
---|
2167 | if(i%confparams_cpr->sampleDistance==0) |
---|
2168 | { |
---|
2169 | pred_value = 2*oriData[i-1] - oriData[i-2]; |
---|
2170 | //pred_value = oriData[i-1]; |
---|
2171 | pred_err = fabs(pred_value - oriData[i]); |
---|
2172 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
2173 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
2174 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
2175 | intervals[radiusIndex]++; |
---|
2176 | } |
---|
2177 | } |
---|
2178 | //compute the appropriate number |
---|
2179 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
2180 | size_t sum = 0; |
---|
2181 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
2182 | { |
---|
2183 | sum += intervals[i]; |
---|
2184 | if(sum>targetCount) |
---|
2185 | break; |
---|
2186 | } |
---|
2187 | if(i>=confparams_cpr->maxRangeRadius) |
---|
2188 | i = confparams_cpr->maxRangeRadius-1; |
---|
2189 | |
---|
2190 | unsigned int accIntervals = 2*(i+1); |
---|
2191 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
2192 | |
---|
2193 | if(powerOf2<32) |
---|
2194 | powerOf2 = 32; |
---|
2195 | |
---|
2196 | free(intervals); |
---|
2197 | //printf("accIntervals=%d, powerOf2=%d\n", accIntervals, powerOf2); |
---|
2198 | return powerOf2; |
---|
2199 | } |
---|
2200 | |
---|
2201 | unsigned int optimize_intervals_float_2D_subblock(float *oriData, double realPrecision, size_t r1, size_t r2, size_t s1, size_t s2, size_t e1, size_t e2) |
---|
2202 | { |
---|
2203 | size_t R1 = e1 - s1 + 1; |
---|
2204 | size_t R2 = e2 - s2 + 1; |
---|
2205 | |
---|
2206 | size_t i,j, index; |
---|
2207 | unsigned long radiusIndex; |
---|
2208 | float pred_value = 0, pred_err; |
---|
2209 | int *intervals = (int*)malloc(confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2210 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2211 | size_t totalSampleSize = R1*R2/confparams_cpr->sampleDistance; |
---|
2212 | for(i=s1+1;i<=e1;i++) |
---|
2213 | { |
---|
2214 | for(j=s2+1;j<=e2;j++) |
---|
2215 | { |
---|
2216 | if((i+j)%confparams_cpr->sampleDistance==0) |
---|
2217 | { |
---|
2218 | index = i*r2+j; |
---|
2219 | pred_value = oriData[index-1] + oriData[index-r2] - oriData[index-r2-1]; |
---|
2220 | pred_err = fabs(pred_value - oriData[index]); |
---|
2221 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
2222 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
2223 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
2224 | intervals[radiusIndex]++; |
---|
2225 | } |
---|
2226 | } |
---|
2227 | } |
---|
2228 | //compute the appropriate number |
---|
2229 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
2230 | size_t sum = 0; |
---|
2231 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
2232 | { |
---|
2233 | sum += intervals[i]; |
---|
2234 | if(sum>targetCount) |
---|
2235 | break; |
---|
2236 | } |
---|
2237 | if(i>=confparams_cpr->maxRangeRadius) |
---|
2238 | i = confparams_cpr->maxRangeRadius-1; |
---|
2239 | unsigned int accIntervals = 2*(i+1); |
---|
2240 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
2241 | |
---|
2242 | if(powerOf2<32) |
---|
2243 | powerOf2 = 32; |
---|
2244 | |
---|
2245 | free(intervals); |
---|
2246 | //printf("confparams_cpr->maxRangeRadius = %d, accIntervals=%d, powerOf2=%d\n", confparams_cpr->maxRangeRadius, accIntervals, powerOf2); |
---|
2247 | return powerOf2; |
---|
2248 | } |
---|
2249 | |
---|
2250 | unsigned int optimize_intervals_float_3D_subblock(float *oriData, double realPrecision, size_t r1, size_t r2, size_t r3, size_t s1, size_t s2, size_t s3, size_t e1, size_t e2, size_t e3) |
---|
2251 | { |
---|
2252 | size_t R1 = e1 - s1 + 1; |
---|
2253 | size_t R2 = e2 - s2 + 1; |
---|
2254 | size_t R3 = e3 - s3 + 1; |
---|
2255 | |
---|
2256 | size_t r23 = r2*r3; |
---|
2257 | |
---|
2258 | size_t i,j,k, index; |
---|
2259 | unsigned long radiusIndex; |
---|
2260 | float pred_value = 0, pred_err; |
---|
2261 | int *intervals = (int*)malloc(confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2262 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2263 | size_t totalSampleSize = R1*R2*R3/confparams_cpr->sampleDistance; |
---|
2264 | for(i=s1+1;i<=e1;i++) |
---|
2265 | { |
---|
2266 | for(j=s2+1;j<=e2;j++) |
---|
2267 | { |
---|
2268 | for(k=s3+1;k<=e3;k++) |
---|
2269 | { |
---|
2270 | if((i+j+k)%confparams_cpr->sampleDistance==0) |
---|
2271 | { |
---|
2272 | index = i*r23+j*r3+k; |
---|
2273 | pred_value = oriData[index-1] + oriData[index-r3] + oriData[index-r23] |
---|
2274 | - oriData[index-1-r23] - oriData[index-r3-1] - oriData[index-r3-r23] + oriData[index-r3-r23-1]; |
---|
2275 | pred_err = fabs(pred_value - oriData[index]); |
---|
2276 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
2277 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
2278 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
2279 | intervals[radiusIndex]++; |
---|
2280 | } |
---|
2281 | } |
---|
2282 | } |
---|
2283 | } |
---|
2284 | //compute the appropriate number |
---|
2285 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
2286 | size_t sum = 0; |
---|
2287 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
2288 | { |
---|
2289 | sum += intervals[i]; |
---|
2290 | if(sum>targetCount) |
---|
2291 | break; |
---|
2292 | } |
---|
2293 | if(i>=confparams_cpr->maxRangeRadius) |
---|
2294 | i = confparams_cpr->maxRangeRadius-1; |
---|
2295 | unsigned int accIntervals = 2*(i+1); |
---|
2296 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
2297 | |
---|
2298 | if(powerOf2<32) |
---|
2299 | powerOf2 = 32; |
---|
2300 | |
---|
2301 | free(intervals); |
---|
2302 | return powerOf2; |
---|
2303 | } |
---|
2304 | |
---|
2305 | unsigned int optimize_intervals_float_4D_subblock(float *oriData, double realPrecision, |
---|
2306 | size_t r1, size_t r2, size_t r3, size_t r4, size_t s1, size_t s2, size_t s3, size_t s4, size_t e1, size_t e2, size_t e3, size_t e4) |
---|
2307 | { |
---|
2308 | size_t R1 = e1 - s1 + 1; |
---|
2309 | size_t R2 = e2 - s2 + 1; |
---|
2310 | size_t R3 = e3 - s3 + 1; |
---|
2311 | size_t R4 = e4 - s4 + 1; |
---|
2312 | |
---|
2313 | size_t r34 = r3*r4; |
---|
2314 | size_t r234 = r2*r3*r4; |
---|
2315 | |
---|
2316 | size_t i,j,k,l, index; |
---|
2317 | unsigned long radiusIndex; |
---|
2318 | float pred_value = 0, pred_err; |
---|
2319 | int *intervals = (int*)malloc(confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2320 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(int)); |
---|
2321 | size_t totalSampleSize = R1*R2*R3*R4/confparams_cpr->sampleDistance; |
---|
2322 | for(i=s1+1;i<=e1;i++) |
---|
2323 | { |
---|
2324 | for(j=s2+1;j<=e2;j++) |
---|
2325 | { |
---|
2326 | for(k=s3+1;k<=e3;k++) |
---|
2327 | { |
---|
2328 | for (l=s4+1;l<=e4;l++) |
---|
2329 | { |
---|
2330 | if((i+j+k+l)%confparams_cpr->sampleDistance==0) |
---|
2331 | { |
---|
2332 | index = i*r234+j*r34+k*r4+l; |
---|
2333 | pred_value = oriData[index-1] + oriData[index-r4] + oriData[index-r34] |
---|
2334 | - oriData[index-1-r34] - oriData[index-r4-1] - oriData[index-r4-r34] + oriData[index-r4-r34-1]; |
---|
2335 | pred_err = fabs(pred_value - oriData[index]); |
---|
2336 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
2337 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
2338 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
2339 | intervals[radiusIndex]++; |
---|
2340 | } |
---|
2341 | } |
---|
2342 | } |
---|
2343 | } |
---|
2344 | } |
---|
2345 | //compute the appropriate number |
---|
2346 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
2347 | size_t sum = 0; |
---|
2348 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
2349 | { |
---|
2350 | sum += intervals[i]; |
---|
2351 | if(sum>targetCount) |
---|
2352 | break; |
---|
2353 | } |
---|
2354 | if(i>=confparams_cpr->maxRangeRadius) |
---|
2355 | i = confparams_cpr->maxRangeRadius-1; |
---|
2356 | |
---|
2357 | unsigned int accIntervals = 2*(i+1); |
---|
2358 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
2359 | |
---|
2360 | if(powerOf2<32) |
---|
2361 | powerOf2 = 32; |
---|
2362 | |
---|
2363 | free(intervals); |
---|
2364 | return powerOf2; |
---|
2365 | } |
---|
2366 | |
---|
2367 | TightDataPointStorageF* SZ_compress_float_1D_MDQ_subblock(float *oriData, double realPrecision, float valueRangeSize, float medianValue_f, |
---|
2368 | size_t r1, size_t s1, size_t e1) |
---|
2369 | { |
---|
2370 | size_t dataLength = e1 - s1 + 1; |
---|
2371 | unsigned int quantization_intervals; |
---|
2372 | if(exe_params->optQuantMode==1) |
---|
2373 | quantization_intervals = optimize_intervals_float_1D_subblock(oriData, realPrecision, r1, s1, e1); |
---|
2374 | else |
---|
2375 | quantization_intervals = exe_params->intvCapacity; |
---|
2376 | updateQuantizationInfo(quantization_intervals); |
---|
2377 | |
---|
2378 | size_t i; |
---|
2379 | int reqLength; |
---|
2380 | float medianValue = medianValue_f; |
---|
2381 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
2382 | |
---|
2383 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
2384 | |
---|
2385 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
2386 | |
---|
2387 | float* spaceFillingValue = oriData + s1; |
---|
2388 | |
---|
2389 | DynamicIntArray *exactLeadNumArray; |
---|
2390 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
2391 | |
---|
2392 | DynamicByteArray *exactMidByteArray; |
---|
2393 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
2394 | |
---|
2395 | DynamicIntArray *resiBitArray; |
---|
2396 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
2397 | |
---|
2398 | type[0] = 0; |
---|
2399 | |
---|
2400 | unsigned char preDataBytes[4]; |
---|
2401 | intToBytes_bigEndian(preDataBytes, 0); |
---|
2402 | |
---|
2403 | int reqBytesLength = reqLength/8; |
---|
2404 | int resiBitsLength = reqLength%8; |
---|
2405 | float last3CmprsData[3] = {0}; |
---|
2406 | |
---|
2407 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
2408 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
2409 | |
---|
2410 | //add the first data |
---|
2411 | compressSingleFloatValue(vce, spaceFillingValue[0], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2412 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2413 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2414 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2415 | listAdd_float(last3CmprsData, vce->data); |
---|
2416 | |
---|
2417 | //add the second data |
---|
2418 | type[1] = 0; |
---|
2419 | compressSingleFloatValue(vce, spaceFillingValue[1], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2420 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2421 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2422 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2423 | listAdd_float(last3CmprsData, vce->data); |
---|
2424 | |
---|
2425 | int state; |
---|
2426 | double checkRadius; |
---|
2427 | float curData; |
---|
2428 | float pred; |
---|
2429 | float predAbsErr; |
---|
2430 | checkRadius = (exe_params->intvCapacity-1)*realPrecision; |
---|
2431 | double interval = 2*realPrecision; |
---|
2432 | |
---|
2433 | for(i=2;i<dataLength;i++) |
---|
2434 | { |
---|
2435 | curData = spaceFillingValue[i]; |
---|
2436 | pred = 2*last3CmprsData[0] - last3CmprsData[1]; |
---|
2437 | predAbsErr = fabs(curData - pred); |
---|
2438 | if(predAbsErr<=checkRadius) |
---|
2439 | { |
---|
2440 | state = (predAbsErr/realPrecision+1)/2; |
---|
2441 | if(curData>=pred) |
---|
2442 | { |
---|
2443 | type[i] = exe_params->intvRadius+state; |
---|
2444 | pred = pred + state*interval; |
---|
2445 | } |
---|
2446 | else |
---|
2447 | { |
---|
2448 | type[i] = exe_params->intvRadius-state; |
---|
2449 | pred = pred - state*interval; |
---|
2450 | } |
---|
2451 | |
---|
2452 | listAdd_float(last3CmprsData, pred); |
---|
2453 | continue; |
---|
2454 | } |
---|
2455 | |
---|
2456 | //unpredictable data processing |
---|
2457 | type[i] = 0; |
---|
2458 | compressSingleFloatValue(vce, curData, realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2459 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2460 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2461 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2462 | |
---|
2463 | listAdd_float(last3CmprsData, vce->data); |
---|
2464 | } |
---|
2465 | |
---|
2466 | size_t exactDataNum = exactLeadNumArray->size; |
---|
2467 | |
---|
2468 | TightDataPointStorageF* tdps; |
---|
2469 | |
---|
2470 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
2471 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
2472 | exactLeadNumArray->array, |
---|
2473 | resiBitArray->array, resiBitArray->size, |
---|
2474 | resiBitsLength, |
---|
2475 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
2476 | |
---|
2477 | //free memory |
---|
2478 | free_DIA(exactLeadNumArray); |
---|
2479 | free_DIA(resiBitArray); |
---|
2480 | free(type); |
---|
2481 | free(vce); |
---|
2482 | free(lce); |
---|
2483 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
2484 | |
---|
2485 | return tdps; |
---|
2486 | } |
---|
2487 | |
---|
2488 | TightDataPointStorageF* SZ_compress_float_2D_MDQ_subblock(float *oriData, double realPrecision, float valueRangeSize, float medianValue_f, |
---|
2489 | size_t r1, size_t r2, size_t s1, size_t s2, size_t e1, size_t e2) |
---|
2490 | { |
---|
2491 | unsigned int quantization_intervals; |
---|
2492 | if(exe_params->optQuantMode==1) |
---|
2493 | { |
---|
2494 | quantization_intervals = optimize_intervals_float_2D_subblock(oriData, realPrecision, r1, r2, s1, s2, e1, e2); |
---|
2495 | updateQuantizationInfo(quantization_intervals); |
---|
2496 | } |
---|
2497 | else |
---|
2498 | quantization_intervals = exe_params->intvCapacity; |
---|
2499 | |
---|
2500 | size_t i,j; |
---|
2501 | int reqLength; |
---|
2502 | float pred1D, pred2D; |
---|
2503 | float diff = 0.0; |
---|
2504 | double itvNum = 0; |
---|
2505 | float *P0, *P1; |
---|
2506 | |
---|
2507 | size_t R1 = e1 - s1 + 1; |
---|
2508 | size_t R2 = e2 - s2 + 1; |
---|
2509 | size_t dataLength = R1*R2; |
---|
2510 | |
---|
2511 | P0 = (float*)malloc(R2*sizeof(float)); |
---|
2512 | memset(P0, 0, R2*sizeof(float)); |
---|
2513 | P1 = (float*)malloc(R2*sizeof(float)); |
---|
2514 | memset(P1, 0, R2*sizeof(float)); |
---|
2515 | |
---|
2516 | float medianValue = medianValue_f; |
---|
2517 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
2518 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
2519 | |
---|
2520 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
2521 | |
---|
2522 | float* spaceFillingValue = oriData; // |
---|
2523 | |
---|
2524 | DynamicIntArray *exactLeadNumArray; |
---|
2525 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
2526 | |
---|
2527 | DynamicByteArray *exactMidByteArray; |
---|
2528 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
2529 | |
---|
2530 | DynamicIntArray *resiBitArray; |
---|
2531 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
2532 | |
---|
2533 | unsigned char preDataBytes[4]; |
---|
2534 | intToBytes_bigEndian(preDataBytes, 0); |
---|
2535 | |
---|
2536 | int reqBytesLength = reqLength/8; |
---|
2537 | int resiBitsLength = reqLength%8; |
---|
2538 | |
---|
2539 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
2540 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
2541 | |
---|
2542 | /* Process Row-s1 data s2*/ |
---|
2543 | size_t gIndex; |
---|
2544 | size_t lIndex; |
---|
2545 | |
---|
2546 | gIndex = s1*r2+s2; |
---|
2547 | lIndex = 0; |
---|
2548 | |
---|
2549 | type[lIndex] = 0; |
---|
2550 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2551 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2552 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2553 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2554 | P1[0] = vce->data; |
---|
2555 | |
---|
2556 | /* Process Row-s1 data s2+1*/ |
---|
2557 | gIndex = s1*r2+(s2+1); |
---|
2558 | lIndex = 1; |
---|
2559 | |
---|
2560 | pred1D = P1[0]; |
---|
2561 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2562 | |
---|
2563 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2564 | |
---|
2565 | if (itvNum < exe_params->intvCapacity) |
---|
2566 | { |
---|
2567 | if (diff < 0) itvNum = -itvNum; |
---|
2568 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2569 | P1[1] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2570 | } |
---|
2571 | else |
---|
2572 | { |
---|
2573 | type[lIndex] = 0; |
---|
2574 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2575 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2576 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2577 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2578 | P1[1] = vce->data; |
---|
2579 | } |
---|
2580 | |
---|
2581 | /* Process Row-s1 data s2+2 --> data e2 */ |
---|
2582 | for (j = 2; j < R2; j++) |
---|
2583 | { |
---|
2584 | gIndex = s1*r2+(s2+j); |
---|
2585 | lIndex = j; |
---|
2586 | |
---|
2587 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
2588 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2589 | |
---|
2590 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2591 | |
---|
2592 | if (itvNum < exe_params->intvCapacity) |
---|
2593 | { |
---|
2594 | if (diff < 0) itvNum = -itvNum; |
---|
2595 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2596 | P1[j] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2597 | } |
---|
2598 | else |
---|
2599 | { |
---|
2600 | type[lIndex] = 0; |
---|
2601 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2602 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2603 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2604 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2605 | P1[j] = vce->data; |
---|
2606 | } |
---|
2607 | } |
---|
2608 | |
---|
2609 | /* Process Row-s1+1 --> Row-e1 */ |
---|
2610 | for (i = 1; i < R1; i++) |
---|
2611 | { |
---|
2612 | /* Process row-s1+i data s2 */ |
---|
2613 | gIndex = (s1+i)*r2+s2; |
---|
2614 | lIndex = i*R2; |
---|
2615 | |
---|
2616 | pred1D = P1[0]; |
---|
2617 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2618 | |
---|
2619 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2620 | |
---|
2621 | if (itvNum < exe_params->intvCapacity) |
---|
2622 | { |
---|
2623 | if (diff < 0) itvNum = -itvNum; |
---|
2624 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2625 | P0[0] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2626 | } |
---|
2627 | else |
---|
2628 | { |
---|
2629 | type[lIndex] = 0; |
---|
2630 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2631 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2632 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2633 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2634 | P0[0] = vce->data; |
---|
2635 | } |
---|
2636 | |
---|
2637 | /* Process row-s1+i data s2+1 --> e2 */ |
---|
2638 | for (j = 1; j < R2; j++) |
---|
2639 | { |
---|
2640 | gIndex = (s1+i)*r2+(s2+j); |
---|
2641 | lIndex = i*R2+j; |
---|
2642 | |
---|
2643 | // printf ("global index = %d, local index = %d\n", gIndex, lIndex); |
---|
2644 | |
---|
2645 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
2646 | |
---|
2647 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
2648 | |
---|
2649 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2650 | |
---|
2651 | if (itvNum < exe_params->intvCapacity) |
---|
2652 | { |
---|
2653 | if (diff < 0) itvNum = -itvNum; |
---|
2654 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2655 | P0[j] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2656 | } |
---|
2657 | else |
---|
2658 | { |
---|
2659 | type[lIndex] = 0; |
---|
2660 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2661 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2662 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2663 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2664 | P0[j] = vce->data; |
---|
2665 | } |
---|
2666 | } |
---|
2667 | |
---|
2668 | float *Pt; |
---|
2669 | Pt = P1; |
---|
2670 | P1 = P0; |
---|
2671 | P0 = Pt; |
---|
2672 | } |
---|
2673 | |
---|
2674 | free(P0); |
---|
2675 | free(P1); |
---|
2676 | size_t exactDataNum = exactLeadNumArray->size; |
---|
2677 | |
---|
2678 | TightDataPointStorageF* tdps; |
---|
2679 | |
---|
2680 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
2681 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
2682 | exactLeadNumArray->array, |
---|
2683 | resiBitArray->array, resiBitArray->size, |
---|
2684 | resiBitsLength, |
---|
2685 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
2686 | |
---|
2687 | //free memory |
---|
2688 | free_DIA(exactLeadNumArray); |
---|
2689 | free_DIA(resiBitArray); |
---|
2690 | free(type); |
---|
2691 | free(vce); |
---|
2692 | free(lce); |
---|
2693 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
2694 | |
---|
2695 | return tdps; |
---|
2696 | } |
---|
2697 | |
---|
2698 | TightDataPointStorageF* SZ_compress_float_3D_MDQ_subblock(float *oriData, double realPrecision, float valueRangeSize, float medianValue_f, |
---|
2699 | size_t r1, size_t r2, size_t r3, size_t s1, size_t s2, size_t s3, size_t e1, size_t e2, size_t e3) |
---|
2700 | { |
---|
2701 | unsigned int quantization_intervals; |
---|
2702 | if(exe_params->optQuantMode==1) |
---|
2703 | { |
---|
2704 | quantization_intervals = optimize_intervals_float_3D_subblock(oriData, realPrecision, r1, r2, r3, s1, s2, s3, e1, e2, e3); |
---|
2705 | updateQuantizationInfo(quantization_intervals); |
---|
2706 | } |
---|
2707 | else |
---|
2708 | quantization_intervals = exe_params->intvCapacity; |
---|
2709 | |
---|
2710 | size_t i,j,k; |
---|
2711 | int reqLength; |
---|
2712 | float pred1D, pred2D, pred3D; |
---|
2713 | float diff = 0.0; |
---|
2714 | double itvNum = 0; |
---|
2715 | float *P0, *P1; |
---|
2716 | |
---|
2717 | size_t R1 = e1 - s1 + 1; |
---|
2718 | size_t R2 = e2 - s2 + 1; |
---|
2719 | size_t R3 = e3 - s3 + 1; |
---|
2720 | size_t dataLength = R1*R2*R3; |
---|
2721 | |
---|
2722 | size_t r23 = r2*r3; |
---|
2723 | size_t R23 = R2*R3; |
---|
2724 | |
---|
2725 | P0 = (float*)malloc(R23*sizeof(float)); |
---|
2726 | P1 = (float*)malloc(R23*sizeof(float)); |
---|
2727 | |
---|
2728 | float medianValue = medianValue_f; |
---|
2729 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
2730 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
2731 | |
---|
2732 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
2733 | //type[dataLength]=0; |
---|
2734 | |
---|
2735 | float* spaceFillingValue = oriData; // |
---|
2736 | |
---|
2737 | DynamicIntArray *exactLeadNumArray; |
---|
2738 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
2739 | |
---|
2740 | DynamicByteArray *exactMidByteArray; |
---|
2741 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
2742 | |
---|
2743 | DynamicIntArray *resiBitArray; |
---|
2744 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
2745 | |
---|
2746 | unsigned char preDataBytes[4]; |
---|
2747 | intToBytes_bigEndian(preDataBytes, 0); |
---|
2748 | |
---|
2749 | int reqBytesLength = reqLength/8; |
---|
2750 | int resiBitsLength = reqLength%8; |
---|
2751 | |
---|
2752 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
2753 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
2754 | |
---|
2755 | |
---|
2756 | /////////////////////////// Process layer-s1 /////////////////////////// |
---|
2757 | /* Process Row-s2 data s3*/ |
---|
2758 | size_t gIndex; //global index |
---|
2759 | size_t lIndex; //local index |
---|
2760 | size_t index2D; //local 2D index |
---|
2761 | |
---|
2762 | gIndex = s1*r23+s2*r3+s3; |
---|
2763 | lIndex = 0; |
---|
2764 | index2D = 0; |
---|
2765 | |
---|
2766 | type[lIndex] = 0; |
---|
2767 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2768 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2769 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2770 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2771 | P1[index2D] = vce->data; |
---|
2772 | |
---|
2773 | /* Process Row-s2 data s3+1*/ |
---|
2774 | gIndex = s1*r23+s2*r3+s3+1; |
---|
2775 | lIndex = 1; |
---|
2776 | index2D = 1; |
---|
2777 | |
---|
2778 | pred1D = P1[index2D-1]; |
---|
2779 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2780 | |
---|
2781 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2782 | |
---|
2783 | if (itvNum < exe_params->intvCapacity) |
---|
2784 | { |
---|
2785 | if (diff < 0) itvNum = -itvNum; |
---|
2786 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2787 | P1[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2788 | } |
---|
2789 | else |
---|
2790 | { |
---|
2791 | type[lIndex] = 0; |
---|
2792 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2793 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2794 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2795 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2796 | P1[index2D] = vce->data; |
---|
2797 | } |
---|
2798 | |
---|
2799 | /* Process Row-s2 data s3+2 --> data e3 */ |
---|
2800 | for (j = 2; j < R3; j++) |
---|
2801 | { |
---|
2802 | gIndex = s1*r23+s2*r3+s3+j; |
---|
2803 | lIndex = j; |
---|
2804 | index2D = j; |
---|
2805 | |
---|
2806 | pred1D = 2*P1[index2D-1] - P1[index2D-2]; |
---|
2807 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2808 | |
---|
2809 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2810 | |
---|
2811 | if (itvNum < exe_params->intvCapacity) |
---|
2812 | { |
---|
2813 | if (diff < 0) itvNum = -itvNum; |
---|
2814 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2815 | P1[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2816 | } |
---|
2817 | else |
---|
2818 | { |
---|
2819 | type[lIndex] = 0; |
---|
2820 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2821 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2822 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2823 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2824 | P1[index2D] = vce->data; |
---|
2825 | } |
---|
2826 | } |
---|
2827 | |
---|
2828 | /* Process Row-s2+1 --> Row-e2 */ |
---|
2829 | for (i = 1; i < R2; i++) |
---|
2830 | { |
---|
2831 | /* Process row-s2+i data s3 */ |
---|
2832 | gIndex = s1*r23+(s2+i)*r3+s3; |
---|
2833 | lIndex = i*R3; |
---|
2834 | index2D = i*R3; |
---|
2835 | |
---|
2836 | pred1D = P1[index2D-R3]; |
---|
2837 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2838 | |
---|
2839 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2840 | |
---|
2841 | if (itvNum < exe_params->intvCapacity) |
---|
2842 | { |
---|
2843 | if (diff < 0) itvNum = -itvNum; |
---|
2844 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2845 | P1[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2846 | } |
---|
2847 | else |
---|
2848 | { |
---|
2849 | type[lIndex] = 0; |
---|
2850 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2851 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2852 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2853 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2854 | P1[index2D] = vce->data; |
---|
2855 | } |
---|
2856 | |
---|
2857 | /* Process row-s2+i data s3+1 --> data e3*/ |
---|
2858 | for (j = 1; j < R3; j++) |
---|
2859 | { |
---|
2860 | gIndex = s1*r23+(s2+i)*r3+s3+j; |
---|
2861 | lIndex = i*R3+j; |
---|
2862 | index2D = i*R3+j; |
---|
2863 | |
---|
2864 | pred2D = P1[index2D-1] + P1[index2D-R3] - P1[index2D-R3-1]; |
---|
2865 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
2866 | |
---|
2867 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2868 | |
---|
2869 | if (itvNum < exe_params->intvCapacity) |
---|
2870 | { |
---|
2871 | if (diff < 0) itvNum = -itvNum; |
---|
2872 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2873 | P1[index2D] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2874 | } |
---|
2875 | else |
---|
2876 | { |
---|
2877 | type[lIndex] = 0; |
---|
2878 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2879 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2880 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2881 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2882 | P1[index2D] = vce->data; |
---|
2883 | } |
---|
2884 | } |
---|
2885 | } |
---|
2886 | |
---|
2887 | |
---|
2888 | /////////////////////////// Process layer-s1+1 --> layer-e1 /////////////////////////// |
---|
2889 | |
---|
2890 | for (k = 1; k < R1; k++) |
---|
2891 | { |
---|
2892 | /* Process Row-s2 data s3*/ |
---|
2893 | gIndex = (s1+k)*r23+s2*r3+s3; |
---|
2894 | lIndex = k*R23; |
---|
2895 | index2D = 0; |
---|
2896 | |
---|
2897 | pred1D = P1[index2D]; |
---|
2898 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
2899 | |
---|
2900 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2901 | |
---|
2902 | if (itvNum < exe_params->intvCapacity) |
---|
2903 | { |
---|
2904 | if (diff < 0) itvNum = -itvNum; |
---|
2905 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2906 | P0[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2907 | } |
---|
2908 | else |
---|
2909 | { |
---|
2910 | type[lIndex] = 0; |
---|
2911 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2912 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2913 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2914 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2915 | P0[index2D] = vce->data; |
---|
2916 | } |
---|
2917 | |
---|
2918 | /* Process Row-s2 data s3+1 --> data e3 */ |
---|
2919 | for (j = 1; j < R3; j++) |
---|
2920 | { |
---|
2921 | gIndex = (s1+k)*r23+s2*r3+s3+j; |
---|
2922 | lIndex = k*R23+j; |
---|
2923 | index2D = j; |
---|
2924 | |
---|
2925 | pred2D = P0[index2D-1] + P1[index2D] - P1[index2D-1]; |
---|
2926 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
2927 | |
---|
2928 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2929 | |
---|
2930 | if (itvNum < exe_params->intvCapacity) |
---|
2931 | { |
---|
2932 | if (diff < 0) itvNum = -itvNum; |
---|
2933 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2934 | P0[index2D] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2935 | } |
---|
2936 | else |
---|
2937 | { |
---|
2938 | type[lIndex] = 0; |
---|
2939 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2940 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2941 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2942 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2943 | P0[index2D] = vce->data; |
---|
2944 | } |
---|
2945 | } |
---|
2946 | |
---|
2947 | /* Process Row-s2+1 --> Row-e2 */ |
---|
2948 | for (i = 1; i < R2; i++) |
---|
2949 | { |
---|
2950 | /* Process Row-s2+i data s3 */ |
---|
2951 | gIndex = (s1+k)*r23+(s2+i)*r3+s3; |
---|
2952 | lIndex = k*R23+i*R3; |
---|
2953 | index2D = i*R3; |
---|
2954 | |
---|
2955 | pred2D = P0[index2D-R3] + P1[index2D] - P1[index2D-R3]; |
---|
2956 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
2957 | |
---|
2958 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2959 | |
---|
2960 | if (itvNum < exe_params->intvCapacity) |
---|
2961 | { |
---|
2962 | if (diff < 0) itvNum = -itvNum; |
---|
2963 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2964 | P0[index2D] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2965 | } |
---|
2966 | else |
---|
2967 | { |
---|
2968 | type[lIndex] = 0; |
---|
2969 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
2970 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
2971 | memcpy(preDataBytes,vce->curBytes,4); |
---|
2972 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
2973 | P0[index2D] = vce->data; |
---|
2974 | } |
---|
2975 | |
---|
2976 | /* Process Row-s2+i data s3+1 --> data e3 */ |
---|
2977 | for (j = 1; j < R3; j++) |
---|
2978 | { |
---|
2979 | gIndex = (s1+k)*r23+(s2+i)*r3+s3+j; |
---|
2980 | lIndex = k*R23+i*R3+j; |
---|
2981 | index2D = i*R3+j; |
---|
2982 | |
---|
2983 | // printf ("global index = %d, local index = %d\n", gIndex, lIndex); |
---|
2984 | |
---|
2985 | pred3D = P0[index2D-1] + P0[index2D-R3]+ P1[index2D] - P0[index2D-R3-1] - P1[index2D-R3] - P1[index2D-1] + P1[index2D-R3-1]; |
---|
2986 | diff = spaceFillingValue[gIndex] - pred3D; |
---|
2987 | |
---|
2988 | itvNum = fabs(diff)/realPrecision + 1; |
---|
2989 | |
---|
2990 | if (itvNum < exe_params->intvCapacity) |
---|
2991 | { |
---|
2992 | if (diff < 0) itvNum = -itvNum; |
---|
2993 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
2994 | P0[index2D] = pred3D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
2995 | } |
---|
2996 | else |
---|
2997 | { |
---|
2998 | type[lIndex] = 0; |
---|
2999 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3000 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3001 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3002 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3003 | P0[index2D] = vce->data; |
---|
3004 | } |
---|
3005 | } |
---|
3006 | } |
---|
3007 | |
---|
3008 | float *Pt; |
---|
3009 | Pt = P1; |
---|
3010 | P1 = P0; |
---|
3011 | P0 = Pt; |
---|
3012 | } |
---|
3013 | |
---|
3014 | free(P0); |
---|
3015 | free(P1); |
---|
3016 | size_t exactDataNum = exactLeadNumArray->size; |
---|
3017 | |
---|
3018 | TightDataPointStorageF* tdps; |
---|
3019 | |
---|
3020 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
3021 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
3022 | exactLeadNumArray->array, |
---|
3023 | resiBitArray->array, resiBitArray->size, |
---|
3024 | resiBitsLength, |
---|
3025 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
3026 | |
---|
3027 | //free memory |
---|
3028 | free_DIA(exactLeadNumArray); |
---|
3029 | free_DIA(resiBitArray); |
---|
3030 | free(type); |
---|
3031 | free(vce); |
---|
3032 | free(lce); |
---|
3033 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
3034 | |
---|
3035 | return tdps; |
---|
3036 | } |
---|
3037 | |
---|
3038 | TightDataPointStorageF* SZ_compress_float_4D_MDQ_subblock(float *oriData, double realPrecision, float valueRangeSize, float medianValue_f, |
---|
3039 | size_t r1, size_t r2, size_t r3, size_t r4, size_t s1, size_t s2, size_t s3, size_t s4, size_t e1, size_t e2, size_t e3, size_t e4) |
---|
3040 | { |
---|
3041 | unsigned int quantization_intervals; |
---|
3042 | if(exe_params->optQuantMode==1) |
---|
3043 | { |
---|
3044 | quantization_intervals = optimize_intervals_float_4D_subblock(oriData, realPrecision, r1, r2, r3, r4, s1, s2, s3, s4, e1, e2, e3, e4); |
---|
3045 | updateQuantizationInfo(quantization_intervals); |
---|
3046 | } |
---|
3047 | else |
---|
3048 | quantization_intervals = exe_params->intvCapacity; |
---|
3049 | |
---|
3050 | size_t i,j,k; |
---|
3051 | int reqLength; |
---|
3052 | float pred1D, pred2D, pred3D; |
---|
3053 | float diff = 0.0; |
---|
3054 | double itvNum = 0; |
---|
3055 | float *P0, *P1; |
---|
3056 | |
---|
3057 | size_t R1 = e1 - s1 + 1; |
---|
3058 | size_t R2 = e2 - s2 + 1; |
---|
3059 | size_t R3 = e3 - s3 + 1; |
---|
3060 | size_t R4 = e4 - s4 + 1; |
---|
3061 | |
---|
3062 | size_t dataLength = R1*R2*R3*R4; |
---|
3063 | |
---|
3064 | size_t r34 = r3*r4; |
---|
3065 | size_t r234 = r2*r3*r4; |
---|
3066 | size_t R34 = R3*R4; |
---|
3067 | size_t R234 = R2*R3*R4; |
---|
3068 | |
---|
3069 | P0 = (float*)malloc(R34*sizeof(float)); |
---|
3070 | P1 = (float*)malloc(R34*sizeof(float)); |
---|
3071 | |
---|
3072 | float medianValue = medianValue_f; |
---|
3073 | short radExpo = getExponent_float(valueRangeSize/2); |
---|
3074 | computeReqLength_float(realPrecision, radExpo, &reqLength, &medianValue); |
---|
3075 | |
---|
3076 | int* type = (int*) malloc(dataLength*sizeof(int)); |
---|
3077 | |
---|
3078 | float* spaceFillingValue = oriData; // |
---|
3079 | |
---|
3080 | DynamicIntArray *exactLeadNumArray; |
---|
3081 | new_DIA(&exactLeadNumArray, DynArrayInitLen); |
---|
3082 | |
---|
3083 | DynamicByteArray *exactMidByteArray; |
---|
3084 | new_DBA(&exactMidByteArray, DynArrayInitLen); |
---|
3085 | |
---|
3086 | DynamicIntArray *resiBitArray; |
---|
3087 | new_DIA(&resiBitArray, DynArrayInitLen); |
---|
3088 | |
---|
3089 | unsigned char preDataBytes[4]; |
---|
3090 | intToBytes_bigEndian(preDataBytes, 0); |
---|
3091 | |
---|
3092 | int reqBytesLength = reqLength/8; |
---|
3093 | int resiBitsLength = reqLength%8; |
---|
3094 | |
---|
3095 | FloatValueCompressElement *vce = (FloatValueCompressElement*)malloc(sizeof(FloatValueCompressElement)); |
---|
3096 | LossyCompressionElement *lce = (LossyCompressionElement*)malloc(sizeof(LossyCompressionElement)); |
---|
3097 | |
---|
3098 | |
---|
3099 | size_t l; |
---|
3100 | for (l = 0; l < R1; l++) |
---|
3101 | { |
---|
3102 | |
---|
3103 | /////////////////////////// Process layer-s2 /////////////////////////// |
---|
3104 | /* Process Row-s3 data s4*/ |
---|
3105 | size_t gIndex; //global index |
---|
3106 | size_t lIndex; //local index |
---|
3107 | size_t index2D; //local 2D index |
---|
3108 | |
---|
3109 | gIndex = (s1+l)*r234+s2*r34+s3*r4+s4; |
---|
3110 | lIndex = l*R234; |
---|
3111 | index2D = 0; |
---|
3112 | |
---|
3113 | type[lIndex] = 0; |
---|
3114 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3115 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3116 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3117 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3118 | P1[index2D] = vce->data; |
---|
3119 | |
---|
3120 | /* Process Row-s3 data s4+1*/ |
---|
3121 | gIndex = (s1+l)*r234+s2*r34+s3*r4+s4+1; |
---|
3122 | lIndex = l*R234+1; |
---|
3123 | index2D = 1; |
---|
3124 | |
---|
3125 | pred1D = P1[index2D-1]; |
---|
3126 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
3127 | |
---|
3128 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3129 | |
---|
3130 | if (itvNum < exe_params->intvCapacity) |
---|
3131 | { |
---|
3132 | if (diff < 0) itvNum = -itvNum; |
---|
3133 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3134 | P1[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3135 | } |
---|
3136 | else |
---|
3137 | { |
---|
3138 | type[lIndex] = 0; |
---|
3139 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3140 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3141 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3142 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3143 | P1[index2D] = vce->data; |
---|
3144 | } |
---|
3145 | |
---|
3146 | /* Process Row-s3 data s4+2 --> data e4 */ |
---|
3147 | for (j = 2; j < R4; j++) |
---|
3148 | { |
---|
3149 | gIndex = (s1+l)*r234+s2*r34+s3*r4+s4+j; |
---|
3150 | lIndex = l*R234+j; |
---|
3151 | index2D = j; |
---|
3152 | |
---|
3153 | pred1D = 2*P1[index2D-1] - P1[index2D-2]; |
---|
3154 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
3155 | |
---|
3156 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3157 | |
---|
3158 | if (itvNum < exe_params->intvCapacity) |
---|
3159 | { |
---|
3160 | if (diff < 0) itvNum = -itvNum; |
---|
3161 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3162 | P1[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3163 | } |
---|
3164 | else |
---|
3165 | { |
---|
3166 | type[lIndex] = 0; |
---|
3167 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3168 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3169 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3170 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3171 | P1[index2D] = vce->data; |
---|
3172 | } |
---|
3173 | } |
---|
3174 | |
---|
3175 | /* Process Row-s3+1 --> Row-e3 */ |
---|
3176 | for (i = 1; i < R3; i++) |
---|
3177 | { |
---|
3178 | /* Process row-s2+i data s3 */ |
---|
3179 | gIndex = (s1+l)*r234+s2*r34+(s3+i)*r4+s4; |
---|
3180 | lIndex = l*R234+i*R4; |
---|
3181 | index2D = i*R4; |
---|
3182 | |
---|
3183 | pred1D = P1[index2D-R4]; |
---|
3184 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
3185 | |
---|
3186 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3187 | |
---|
3188 | if (itvNum < exe_params->intvCapacity) |
---|
3189 | { |
---|
3190 | if (diff < 0) itvNum = -itvNum; |
---|
3191 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3192 | P1[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3193 | } |
---|
3194 | else |
---|
3195 | { |
---|
3196 | type[lIndex] = 0; |
---|
3197 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3198 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3199 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3200 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3201 | P1[index2D] = vce->data; |
---|
3202 | } |
---|
3203 | |
---|
3204 | /* Process row-s3+i data s4+1 --> data e4*/ |
---|
3205 | for (j = 1; j < R4; j++) |
---|
3206 | { |
---|
3207 | gIndex = (s1+l)*r234+s2*r34+(s3+i)*r4+s4+j; |
---|
3208 | lIndex = l*R234+i*R4+j; |
---|
3209 | index2D = i*R4+j; |
---|
3210 | |
---|
3211 | pred2D = P1[index2D-1] + P1[index2D-R4] - P1[index2D-R4-1]; |
---|
3212 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
3213 | |
---|
3214 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3215 | |
---|
3216 | if (itvNum < exe_params->intvCapacity) |
---|
3217 | { |
---|
3218 | if (diff < 0) itvNum = -itvNum; |
---|
3219 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3220 | P1[index2D] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3221 | } |
---|
3222 | else |
---|
3223 | { |
---|
3224 | type[lIndex] = 0; |
---|
3225 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3226 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3227 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3228 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3229 | P1[index2D] = vce->data; |
---|
3230 | } |
---|
3231 | } |
---|
3232 | } |
---|
3233 | |
---|
3234 | |
---|
3235 | /////////////////////////// Process layer-s2+1 --> layer-e2 /////////////////////////// |
---|
3236 | |
---|
3237 | for (k = 1; k < R2; k++) |
---|
3238 | { |
---|
3239 | /* Process Row-s3 data s4*/ |
---|
3240 | gIndex = (s1+l)*r234+(s2+k)*r34+s3*r4+s4; |
---|
3241 | lIndex = l*R234+k*R34; |
---|
3242 | index2D = 0; |
---|
3243 | |
---|
3244 | pred1D = P1[index2D]; |
---|
3245 | diff = spaceFillingValue[gIndex] - pred1D; |
---|
3246 | |
---|
3247 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3248 | |
---|
3249 | if (itvNum < exe_params->intvCapacity) |
---|
3250 | { |
---|
3251 | if (diff < 0) itvNum = -itvNum; |
---|
3252 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3253 | P0[index2D] = pred1D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3254 | } |
---|
3255 | else |
---|
3256 | { |
---|
3257 | type[lIndex] = 0; |
---|
3258 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3259 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3260 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3261 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3262 | P0[index2D] = vce->data; |
---|
3263 | } |
---|
3264 | |
---|
3265 | /* Process Row-s3 data s4+1 --> data e4 */ |
---|
3266 | for (j = 1; j < R4; j++) |
---|
3267 | { |
---|
3268 | gIndex = (s1+l)*r234+(s2+k)*r34+s3*r4+s4+j; |
---|
3269 | lIndex = l*R234+k*R34+j; |
---|
3270 | index2D = j; |
---|
3271 | |
---|
3272 | pred2D = P0[index2D-1] + P1[index2D] - P1[index2D-1]; |
---|
3273 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
3274 | |
---|
3275 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3276 | |
---|
3277 | if (itvNum < exe_params->intvCapacity) |
---|
3278 | { |
---|
3279 | if (diff < 0) itvNum = -itvNum; |
---|
3280 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3281 | P0[index2D] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3282 | } |
---|
3283 | else |
---|
3284 | { |
---|
3285 | type[lIndex] = 0; |
---|
3286 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3287 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3288 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3289 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3290 | P0[index2D] = vce->data; |
---|
3291 | } |
---|
3292 | } |
---|
3293 | |
---|
3294 | /* Process Row-s3+1 --> Row-e3 */ |
---|
3295 | for (i = 1; i < R3; i++) |
---|
3296 | { |
---|
3297 | /* Process Row-s3+i data s4 */ |
---|
3298 | gIndex = (s1+l)*r234+(s2+k)*r34+(s3+i)*r4+s4; |
---|
3299 | lIndex = l*R234+k*R34+i*R4; |
---|
3300 | index2D = i*R4; |
---|
3301 | |
---|
3302 | pred2D = P0[index2D-R4] + P1[index2D] - P1[index2D-R4]; |
---|
3303 | diff = spaceFillingValue[gIndex] - pred2D; |
---|
3304 | |
---|
3305 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3306 | |
---|
3307 | if (itvNum < exe_params->intvCapacity) |
---|
3308 | { |
---|
3309 | if (diff < 0) itvNum = -itvNum; |
---|
3310 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3311 | P0[index2D] = pred2D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3312 | } |
---|
3313 | else |
---|
3314 | { |
---|
3315 | type[lIndex] = 0; |
---|
3316 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3317 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3318 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3319 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3320 | P0[index2D] = vce->data; |
---|
3321 | } |
---|
3322 | |
---|
3323 | /* Process Row-s3+i data s4+1 --> data e4 */ |
---|
3324 | for (j = 1; j < R4; j++) |
---|
3325 | { |
---|
3326 | gIndex = (s1+l)*r234+(s2+k)*r34+(s3+i)*r4+s4+j; |
---|
3327 | lIndex = l*R234+k*R34+i*R4+j; |
---|
3328 | index2D = i*R4+j; |
---|
3329 | |
---|
3330 | // printf ("global index = %d, local index = %d\n", gIndex, lIndex); |
---|
3331 | |
---|
3332 | pred3D = P0[index2D-1] + P0[index2D-R4]+ P1[index2D] - P0[index2D-R4-1] - P1[index2D-R4] - P1[index2D-1] + P1[index2D-R4-1]; |
---|
3333 | diff = spaceFillingValue[gIndex] - pred3D; |
---|
3334 | |
---|
3335 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3336 | |
---|
3337 | if (itvNum < exe_params->intvCapacity) |
---|
3338 | { |
---|
3339 | if (diff < 0) itvNum = -itvNum; |
---|
3340 | type[lIndex] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3341 | P0[index2D] = pred3D + 2 * (type[lIndex] - exe_params->intvRadius) * realPrecision; |
---|
3342 | } |
---|
3343 | else |
---|
3344 | { |
---|
3345 | type[lIndex] = 0; |
---|
3346 | compressSingleFloatValue(vce, spaceFillingValue[gIndex], realPrecision, medianValue, reqLength, reqBytesLength, resiBitsLength); |
---|
3347 | updateLossyCompElement_Float(vce->curBytes, preDataBytes, reqBytesLength, resiBitsLength, lce); |
---|
3348 | memcpy(preDataBytes,vce->curBytes,4); |
---|
3349 | addExactData(exactMidByteArray, exactLeadNumArray, resiBitArray, lce); |
---|
3350 | P0[index2D] = vce->data; |
---|
3351 | } |
---|
3352 | } |
---|
3353 | } |
---|
3354 | |
---|
3355 | float *Pt; |
---|
3356 | Pt = P1; |
---|
3357 | P1 = P0; |
---|
3358 | P0 = Pt; |
---|
3359 | } |
---|
3360 | |
---|
3361 | } |
---|
3362 | |
---|
3363 | free(P0); |
---|
3364 | free(P1); |
---|
3365 | size_t exactDataNum = exactLeadNumArray->size; |
---|
3366 | |
---|
3367 | TightDataPointStorageF* tdps; |
---|
3368 | |
---|
3369 | new_TightDataPointStorageF(&tdps, dataLength, exactDataNum, |
---|
3370 | type, exactMidByteArray->array, exactMidByteArray->size, |
---|
3371 | exactLeadNumArray->array, |
---|
3372 | resiBitArray->array, resiBitArray->size, |
---|
3373 | resiBitsLength, |
---|
3374 | realPrecision, medianValue, (char)reqLength, quantization_intervals, NULL, 0, 0); |
---|
3375 | |
---|
3376 | //free memory |
---|
3377 | free_DIA(exactLeadNumArray); |
---|
3378 | free_DIA(resiBitArray); |
---|
3379 | free(type); |
---|
3380 | free(vce); |
---|
3381 | free(lce); |
---|
3382 | free(exactMidByteArray); //exactMidByteArray->array has been released in free_TightDataPointStorageF(tdps); |
---|
3383 | |
---|
3384 | return tdps; |
---|
3385 | } |
---|
3386 | |
---|
3387 | unsigned int optimize_intervals_float_3D_opt(float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision) |
---|
3388 | { |
---|
3389 | size_t i; |
---|
3390 | size_t radiusIndex; |
---|
3391 | size_t r23=r2*r3; |
---|
3392 | float pred_value = 0, pred_err; |
---|
3393 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
---|
3394 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
---|
3395 | size_t totalSampleSize = 0; |
---|
3396 | |
---|
3397 | size_t offset_count = confparams_cpr->sampleDistance - 2; // count r3 offset |
---|
3398 | size_t offset_count_2; |
---|
3399 | float * data_pos = oriData + r23 + r3 + offset_count; |
---|
3400 | size_t n1_count = 1, n2_count = 1; // count i,j sum |
---|
3401 | size_t len = r1 * r2 * r3; |
---|
3402 | while(data_pos - oriData < len){ |
---|
3403 | totalSampleSize++; |
---|
3404 | pred_value = data_pos[-1] + data_pos[-r3] + data_pos[-r23] - data_pos[-1-r23] - data_pos[-r3-1] - data_pos[-r3-r23] + data_pos[-r3-r23-1]; |
---|
3405 | pred_err = fabs(pred_value - *data_pos); |
---|
3406 | radiusIndex = (pred_err/realPrecision+1)/2; |
---|
3407 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
3408 | { |
---|
3409 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
3410 | } |
---|
3411 | intervals[radiusIndex]++; |
---|
3412 | offset_count += confparams_cpr->sampleDistance; |
---|
3413 | if(offset_count >= r3){ |
---|
3414 | n2_count ++; |
---|
3415 | if(n2_count == r2){ |
---|
3416 | n1_count ++; |
---|
3417 | n2_count = 1; |
---|
3418 | data_pos += r3; |
---|
3419 | } |
---|
3420 | offset_count_2 = (n1_count + n2_count) % confparams_cpr->sampleDistance; |
---|
3421 | data_pos += (r3 + confparams_cpr->sampleDistance - offset_count) + (confparams_cpr->sampleDistance - offset_count_2); |
---|
3422 | offset_count = (confparams_cpr->sampleDistance - offset_count_2); |
---|
3423 | if(offset_count == 0) offset_count ++; |
---|
3424 | } |
---|
3425 | else data_pos += confparams_cpr->sampleDistance; |
---|
3426 | } |
---|
3427 | //compute the appropriate number |
---|
3428 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
3429 | size_t sum = 0; |
---|
3430 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
3431 | { |
---|
3432 | sum += intervals[i]; |
---|
3433 | if(sum>targetCount) |
---|
3434 | break; |
---|
3435 | } |
---|
3436 | if(i>=confparams_cpr->maxRangeRadius) |
---|
3437 | i = confparams_cpr->maxRangeRadius-1; |
---|
3438 | unsigned int accIntervals = 2*(i+1); |
---|
3439 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
3440 | |
---|
3441 | if(powerOf2<32) |
---|
3442 | powerOf2 = 32; |
---|
3443 | free(intervals); |
---|
3444 | return powerOf2; |
---|
3445 | } |
---|
3446 | |
---|
3447 | size_t SZ_compress_float_3D_MDQ_RA_block(float * block_ori_data, float * mean, size_t dim_0, size_t dim_1, size_t dim_2, size_t block_dim_0, size_t block_dim_1, size_t block_dim_2, double realPrecision, float * P0, float * P1, int * type, float * unpredictable_data){ |
---|
3448 | |
---|
3449 | size_t dim0_offset = dim_1 * dim_2; |
---|
3450 | size_t dim1_offset = dim_2; |
---|
3451 | |
---|
3452 | // data_pos = block_ori_data; |
---|
3453 | // for(size_t i=0; i<block_dim_0; i++){ |
---|
3454 | // for(size_t j=0; j<block_dim_1; j++){ |
---|
3455 | // for(size_t k=0; k<block_dim_2; k++){ |
---|
3456 | // sum += *data_pos; |
---|
3457 | // data_pos ++; |
---|
3458 | // } |
---|
3459 | // data_pos += dim1_offset - block_dim_2; |
---|
3460 | // } |
---|
3461 | // data_pos += dim0_offset - block_dim_1 * dim1_offset; |
---|
3462 | // } |
---|
3463 | // size_t num_elements = block_dim_0 * block_dim_1 * block_dim_2; |
---|
3464 | // if(num_elements > 0) mean[0] = sum / num_elements; |
---|
3465 | // else mean[0] = 0.0; |
---|
3466 | mean[0] = block_ori_data[0]; |
---|
3467 | |
---|
3468 | size_t unpredictable_count = 0; |
---|
3469 | size_t r1, r2, r3; |
---|
3470 | r1 = block_dim_0; |
---|
3471 | r2 = block_dim_1; |
---|
3472 | r3 = block_dim_2; |
---|
3473 | |
---|
3474 | float * cur_data_pos = block_ori_data; |
---|
3475 | float curData; |
---|
3476 | float pred1D, pred2D, pred3D; |
---|
3477 | double itvNum; |
---|
3478 | double diff; |
---|
3479 | size_t i, j, k; |
---|
3480 | size_t r23 = r2*r3; |
---|
3481 | // Process Row-0 data 0 |
---|
3482 | pred1D = mean[0]; |
---|
3483 | curData = *cur_data_pos; |
---|
3484 | diff = curData - pred1D; |
---|
3485 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3486 | if (itvNum < exe_params->intvCapacity){ |
---|
3487 | if (diff < 0) itvNum = -itvNum; |
---|
3488 | type[0] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3489 | P1[0] = pred1D + 2 * (type[0] - exe_params->intvRadius) * realPrecision; |
---|
3490 | //ganrantee comporession error against the case of machine-epsilon |
---|
3491 | if(fabs(curData-P1[0])>realPrecision){ |
---|
3492 | type[0] = 0; |
---|
3493 | P1[0] = curData; |
---|
3494 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3495 | } |
---|
3496 | } |
---|
3497 | else{ |
---|
3498 | type[0] = 0; |
---|
3499 | P1[0] = curData; |
---|
3500 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3501 | } |
---|
3502 | |
---|
3503 | /* Process Row-0 data 1*/ |
---|
3504 | pred1D = P1[0]; |
---|
3505 | curData = cur_data_pos[1]; |
---|
3506 | diff = curData - pred1D; |
---|
3507 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3508 | if (itvNum < exe_params->intvCapacity){ |
---|
3509 | if (diff < 0) itvNum = -itvNum; |
---|
3510 | type[1] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3511 | P1[1] = pred1D + 2 * (type[1] - exe_params->intvRadius) * realPrecision; |
---|
3512 | //ganrantee comporession error against the case of machine-epsilon |
---|
3513 | if(fabs(curData-P1[1])>realPrecision){ |
---|
3514 | type[1] = 0; |
---|
3515 | P1[1] = curData; |
---|
3516 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3517 | } |
---|
3518 | } |
---|
3519 | else{ |
---|
3520 | type[1] = 0; |
---|
3521 | P1[1] = curData; |
---|
3522 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3523 | } |
---|
3524 | /* Process Row-0 data 2 --> data r3-1 */ |
---|
3525 | for (j = 2; j < r3; j++){ |
---|
3526 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
3527 | curData = cur_data_pos[j]; |
---|
3528 | diff = curData - pred1D; |
---|
3529 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3530 | if (itvNum < exe_params->intvCapacity){ |
---|
3531 | if (diff < 0) itvNum = -itvNum; |
---|
3532 | type[j] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3533 | P1[j] = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
3534 | //ganrantee comporession error against the case of machine-epsilon |
---|
3535 | if(fabs(curData-P1[j])>realPrecision){ |
---|
3536 | type[j] = 0; |
---|
3537 | P1[j] = curData; |
---|
3538 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3539 | } |
---|
3540 | } |
---|
3541 | else{ |
---|
3542 | type[j] = 0; |
---|
3543 | P1[j] = curData; |
---|
3544 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3545 | } |
---|
3546 | } |
---|
3547 | cur_data_pos += dim1_offset; |
---|
3548 | |
---|
3549 | /* Process Row-1 --> Row-r2-1 */ |
---|
3550 | size_t index; |
---|
3551 | for (i = 1; i < r2; i++) |
---|
3552 | { |
---|
3553 | /* Process row-i data 0 */ |
---|
3554 | index = i*r3; |
---|
3555 | pred1D = P1[index-r3]; |
---|
3556 | curData = *cur_data_pos; |
---|
3557 | diff = curData - pred1D; |
---|
3558 | |
---|
3559 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3560 | |
---|
3561 | if (itvNum < exe_params->intvCapacity) |
---|
3562 | { |
---|
3563 | if (diff < 0) itvNum = -itvNum; |
---|
3564 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3565 | P1[index] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
3566 | |
---|
3567 | //ganrantee comporession error against the case of machine-epsilon |
---|
3568 | if(fabs(curData-P1[index])>realPrecision) |
---|
3569 | { |
---|
3570 | type[index] = 0; |
---|
3571 | P1[index] = curData; |
---|
3572 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3573 | } |
---|
3574 | } |
---|
3575 | else |
---|
3576 | { |
---|
3577 | type[index] = 0; |
---|
3578 | P1[index] = curData; |
---|
3579 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3580 | } |
---|
3581 | |
---|
3582 | /* Process row-i data 1 --> data r3-1*/ |
---|
3583 | for (j = 1; j < r3; j++) |
---|
3584 | { |
---|
3585 | index = i*r3+j; |
---|
3586 | pred2D = P1[index-1] + P1[index-r3] - P1[index-r3-1]; |
---|
3587 | |
---|
3588 | curData = cur_data_pos[j]; |
---|
3589 | diff = curData - pred2D; |
---|
3590 | |
---|
3591 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3592 | |
---|
3593 | if (itvNum < exe_params->intvCapacity) |
---|
3594 | { |
---|
3595 | if (diff < 0) itvNum = -itvNum; |
---|
3596 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3597 | P1[index] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
3598 | |
---|
3599 | //ganrantee comporession error against the case of machine-epsilon |
---|
3600 | if(fabs(curData-P1[index])>realPrecision) |
---|
3601 | { |
---|
3602 | type[index] = 0; |
---|
3603 | P1[index] = curData; |
---|
3604 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3605 | } |
---|
3606 | } |
---|
3607 | else |
---|
3608 | { |
---|
3609 | type[index] = 0; |
---|
3610 | P1[index] = curData; |
---|
3611 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3612 | } |
---|
3613 | } |
---|
3614 | cur_data_pos += dim1_offset; |
---|
3615 | } |
---|
3616 | cur_data_pos += dim0_offset - r2 * dim1_offset; |
---|
3617 | |
---|
3618 | /////////////////////////// Process layer-1 --> layer-r1-1 /////////////////////////// |
---|
3619 | |
---|
3620 | for (k = 1; k < r1; k++) |
---|
3621 | { |
---|
3622 | /* Process Row-0 data 0*/ |
---|
3623 | index = k*r23; |
---|
3624 | pred1D = P1[0]; |
---|
3625 | curData = *cur_data_pos; |
---|
3626 | diff = curData - pred1D; |
---|
3627 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3628 | if (itvNum < exe_params->intvCapacity) |
---|
3629 | { |
---|
3630 | if (diff < 0) itvNum = -itvNum; |
---|
3631 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3632 | P0[0] = pred1D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
3633 | //ganrantee comporession error against the case of machine-epsilon |
---|
3634 | if(fabs(curData-P0[0])>realPrecision) |
---|
3635 | { |
---|
3636 | type[index] = 0; |
---|
3637 | P0[0] = curData; |
---|
3638 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3639 | } |
---|
3640 | } |
---|
3641 | else |
---|
3642 | { |
---|
3643 | type[index] = 0; |
---|
3644 | P0[0] = curData; |
---|
3645 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3646 | } |
---|
3647 | /* Process Row-0 data 1 --> data r3-1 */ |
---|
3648 | for (j = 1; j < r3; j++) |
---|
3649 | { |
---|
3650 | //index = k*r2*r3+j; |
---|
3651 | index ++; |
---|
3652 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
3653 | curData = cur_data_pos[j]; |
---|
3654 | diff = curData - pred2D; |
---|
3655 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3656 | if (itvNum < exe_params->intvCapacity) |
---|
3657 | { |
---|
3658 | if (diff < 0) itvNum = -itvNum; |
---|
3659 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3660 | P0[j] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
3661 | //ganrantee comporession error against the case of machine-epsilon |
---|
3662 | if(fabs(curData-P0[j])>realPrecision) |
---|
3663 | { |
---|
3664 | type[index] = 0; |
---|
3665 | P0[j] = curData; |
---|
3666 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3667 | } |
---|
3668 | } |
---|
3669 | else |
---|
3670 | { |
---|
3671 | type[index] = 0; |
---|
3672 | P0[j] = curData; |
---|
3673 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3674 | } |
---|
3675 | } |
---|
3676 | |
---|
3677 | cur_data_pos += dim1_offset; |
---|
3678 | /* Process Row-1 --> Row-r2-1 */ |
---|
3679 | size_t index2D; |
---|
3680 | for (i = 1; i < r2; i++) |
---|
3681 | { |
---|
3682 | /* Process Row-i data 0 */ |
---|
3683 | index = k*r23 + i*r3; |
---|
3684 | index2D = i*r3; |
---|
3685 | pred2D = P0[index2D-r3] + P1[index2D] - P1[index2D-r3]; |
---|
3686 | curData = *cur_data_pos; |
---|
3687 | diff = curData - pred2D; |
---|
3688 | |
---|
3689 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3690 | |
---|
3691 | if (itvNum < exe_params->intvCapacity) |
---|
3692 | { |
---|
3693 | if (diff < 0) itvNum = -itvNum; |
---|
3694 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3695 | P0[index2D] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
3696 | //ganrantee comporession error against the case of machine-epsilon |
---|
3697 | if(fabs(curData-P0[index2D])>realPrecision) |
---|
3698 | { |
---|
3699 | type[index] = 0; |
---|
3700 | P0[index2D] = curData; |
---|
3701 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3702 | } |
---|
3703 | } |
---|
3704 | else |
---|
3705 | { |
---|
3706 | type[index] = 0; |
---|
3707 | P0[index2D] = curData; |
---|
3708 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3709 | } |
---|
3710 | |
---|
3711 | /* Process Row-i data 1 --> data r3-1 */ |
---|
3712 | for (j = 1; j < r3; j++) |
---|
3713 | { |
---|
3714 | //index = k*r2*r3 + i*r3 + j; |
---|
3715 | index ++; |
---|
3716 | index2D = i*r3 + j; |
---|
3717 | pred3D = P0[index2D-1] + P0[index2D-r3]+ P1[index2D] - P0[index2D-r3-1] - P1[index2D-r3] - P1[index2D-1] + P1[index2D-r3-1]; |
---|
3718 | curData = cur_data_pos[j]; |
---|
3719 | diff = curData - pred3D; |
---|
3720 | |
---|
3721 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3722 | |
---|
3723 | if (itvNum < exe_params->intvCapacity) |
---|
3724 | { |
---|
3725 | if (diff < 0) itvNum = -itvNum; |
---|
3726 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3727 | P0[index2D] = pred3D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
3728 | |
---|
3729 | //ganrantee comporession error against the case of machine-epsilon |
---|
3730 | if(fabs(curData-P0[index2D])>realPrecision) |
---|
3731 | { |
---|
3732 | type[index] = 0; |
---|
3733 | P0[index2D] = curData; |
---|
3734 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3735 | } |
---|
3736 | } |
---|
3737 | else |
---|
3738 | { |
---|
3739 | type[index] = 0; |
---|
3740 | P0[index2D] = curData; |
---|
3741 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3742 | } |
---|
3743 | } |
---|
3744 | cur_data_pos += dim1_offset; |
---|
3745 | } |
---|
3746 | cur_data_pos += dim0_offset - r2 * dim1_offset; |
---|
3747 | float *Pt; |
---|
3748 | Pt = P1; |
---|
3749 | P1 = P0; |
---|
3750 | P0 = Pt; |
---|
3751 | } |
---|
3752 | |
---|
3753 | return unpredictable_count; |
---|
3754 | } |
---|
3755 | |
---|
3756 | unsigned int optimize_intervals_float_2D_opt(float *oriData, size_t r1, size_t r2, double realPrecision) |
---|
3757 | { |
---|
3758 | size_t i; |
---|
3759 | size_t radiusIndex; |
---|
3760 | float pred_value = 0, pred_err; |
---|
3761 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
---|
3762 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
---|
3763 | size_t totalSampleSize = 0; |
---|
3764 | |
---|
3765 | size_t offset_count = confparams_cpr->sampleDistance - 1; // count r2 offset |
---|
3766 | size_t offset_count_2; |
---|
3767 | float * data_pos = oriData + r2 + offset_count; |
---|
3768 | size_t n1_count = 1; // count i sum |
---|
3769 | size_t len = r1 * r2; |
---|
3770 | while(data_pos - oriData < len){ |
---|
3771 | totalSampleSize++; |
---|
3772 | pred_value = data_pos[-1] + data_pos[-r2] - data_pos[-r2-1]; |
---|
3773 | pred_err = fabs(pred_value - *data_pos); |
---|
3774 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
3775 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
3776 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
3777 | intervals[radiusIndex]++; |
---|
3778 | |
---|
3779 | offset_count += confparams_cpr->sampleDistance; |
---|
3780 | if(offset_count >= r2){ |
---|
3781 | n1_count ++; |
---|
3782 | offset_count_2 = n1_count % confparams_cpr->sampleDistance; |
---|
3783 | data_pos += (r2 + confparams_cpr->sampleDistance - offset_count) + (confparams_cpr->sampleDistance - offset_count_2); |
---|
3784 | offset_count = (confparams_cpr->sampleDistance - offset_count_2); |
---|
3785 | if(offset_count == 0) offset_count ++; |
---|
3786 | } |
---|
3787 | else data_pos += confparams_cpr->sampleDistance; |
---|
3788 | } |
---|
3789 | |
---|
3790 | //compute the appropriate number |
---|
3791 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
3792 | size_t sum = 0; |
---|
3793 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
3794 | { |
---|
3795 | sum += intervals[i]; |
---|
3796 | if(sum>targetCount) |
---|
3797 | break; |
---|
3798 | } |
---|
3799 | if(i>=confparams_cpr->maxRangeRadius) |
---|
3800 | i = confparams_cpr->maxRangeRadius-1; |
---|
3801 | unsigned int accIntervals = 2*(i+1); |
---|
3802 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
3803 | |
---|
3804 | if(powerOf2<32) |
---|
3805 | powerOf2 = 32; |
---|
3806 | |
---|
3807 | free(intervals); |
---|
3808 | return powerOf2; |
---|
3809 | } |
---|
3810 | |
---|
3811 | unsigned int optimize_intervals_float_1D_opt(float *oriData, size_t dataLength, double realPrecision) |
---|
3812 | { |
---|
3813 | size_t i = 0, radiusIndex; |
---|
3814 | float pred_value = 0, pred_err; |
---|
3815 | size_t *intervals = (size_t*)malloc(confparams_cpr->maxRangeRadius*sizeof(size_t)); |
---|
3816 | memset(intervals, 0, confparams_cpr->maxRangeRadius*sizeof(size_t)); |
---|
3817 | size_t totalSampleSize = 0;//dataLength/confparams_cpr->sampleDistance; |
---|
3818 | |
---|
3819 | float * data_pos = oriData + 2; |
---|
3820 | while(data_pos - oriData < dataLength){ |
---|
3821 | totalSampleSize++; |
---|
3822 | pred_value = data_pos[-1]; |
---|
3823 | pred_err = fabs(pred_value - *data_pos); |
---|
3824 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
3825 | if(radiusIndex>=confparams_cpr->maxRangeRadius) |
---|
3826 | radiusIndex = confparams_cpr->maxRangeRadius - 1; |
---|
3827 | intervals[radiusIndex]++; |
---|
3828 | |
---|
3829 | data_pos += confparams_cpr->sampleDistance; |
---|
3830 | } |
---|
3831 | //compute the appropriate number |
---|
3832 | size_t targetCount = totalSampleSize*confparams_cpr->predThreshold; |
---|
3833 | size_t sum = 0; |
---|
3834 | for(i=0;i<confparams_cpr->maxRangeRadius;i++) |
---|
3835 | { |
---|
3836 | sum += intervals[i]; |
---|
3837 | if(sum>targetCount) |
---|
3838 | break; |
---|
3839 | } |
---|
3840 | if(i>=confparams_cpr->maxRangeRadius) |
---|
3841 | i = confparams_cpr->maxRangeRadius-1; |
---|
3842 | |
---|
3843 | unsigned int accIntervals = 2*(i+1); |
---|
3844 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
3845 | |
---|
3846 | if(powerOf2<32) |
---|
3847 | powerOf2 = 32; |
---|
3848 | |
---|
3849 | free(intervals); |
---|
3850 | return powerOf2; |
---|
3851 | } |
---|
3852 | |
---|
3853 | size_t SZ_compress_float_1D_MDQ_RA_block(float * block_ori_data, float * mean, size_t dim_0, size_t block_dim_0, double realPrecision, int * type, float * unpredictable_data){ |
---|
3854 | |
---|
3855 | mean[0] = block_ori_data[0]; |
---|
3856 | unsigned short unpredictable_count = 0; |
---|
3857 | |
---|
3858 | float curData; |
---|
3859 | double itvNum; |
---|
3860 | double diff; |
---|
3861 | float last_over_thres = mean[0]; |
---|
3862 | float pred1D; |
---|
3863 | size_t type_index = 0; |
---|
3864 | float * data_pos = block_ori_data; |
---|
3865 | for(size_t i=0; i<block_dim_0; i++){ |
---|
3866 | curData = *data_pos; |
---|
3867 | |
---|
3868 | pred1D = last_over_thres; |
---|
3869 | diff = curData - pred1D; |
---|
3870 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3871 | if (itvNum < exe_params->intvCapacity){ |
---|
3872 | if (diff < 0) itvNum = -itvNum; |
---|
3873 | type[type_index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3874 | last_over_thres = pred1D + 2 * (type[type_index] - exe_params->intvRadius) * realPrecision; |
---|
3875 | if(fabs(curData-last_over_thres)>realPrecision){ |
---|
3876 | type[type_index] = 0; |
---|
3877 | last_over_thres = curData; |
---|
3878 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3879 | } |
---|
3880 | |
---|
3881 | } |
---|
3882 | else{ |
---|
3883 | type[type_index] = 0; |
---|
3884 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3885 | last_over_thres = curData; |
---|
3886 | } |
---|
3887 | type_index ++; |
---|
3888 | data_pos ++; |
---|
3889 | } |
---|
3890 | return unpredictable_count; |
---|
3891 | |
---|
3892 | } |
---|
3893 | |
---|
3894 | size_t SZ_compress_float_2D_MDQ_RA_block(float * block_ori_data, float * mean, size_t dim_0, size_t dim_1, size_t block_dim_0, size_t block_dim_1, double realPrecision, float * P0, float * P1, int * type, float * unpredictable_data){ |
---|
3895 | |
---|
3896 | size_t dim0_offset = dim_1; |
---|
3897 | mean[0] = block_ori_data[0]; |
---|
3898 | |
---|
3899 | size_t unpredictable_count = 0; |
---|
3900 | size_t r1, r2; |
---|
3901 | r1 = block_dim_0; |
---|
3902 | r2 = block_dim_1; |
---|
3903 | |
---|
3904 | float * cur_data_pos = block_ori_data; |
---|
3905 | float curData; |
---|
3906 | float pred1D, pred2D; |
---|
3907 | double itvNum; |
---|
3908 | double diff; |
---|
3909 | size_t i, j; |
---|
3910 | /* Process Row-0 data 0*/ |
---|
3911 | curData = *cur_data_pos; |
---|
3912 | pred1D = mean[0]; |
---|
3913 | diff = curData - pred1D; |
---|
3914 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3915 | if (itvNum < exe_params->intvCapacity){ |
---|
3916 | if (diff < 0) itvNum = -itvNum; |
---|
3917 | type[0] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3918 | P1[0] = pred1D + 2 * (type[0] - exe_params->intvRadius) * realPrecision; |
---|
3919 | //ganrantee comporession error against the case of machine-epsilon |
---|
3920 | if(fabs(curData-P1[0])>realPrecision){ |
---|
3921 | type[0] = 0; |
---|
3922 | P1[0] = curData; |
---|
3923 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3924 | } |
---|
3925 | } |
---|
3926 | else{ |
---|
3927 | type[0] = 0; |
---|
3928 | P1[0] = curData; |
---|
3929 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3930 | } |
---|
3931 | |
---|
3932 | /* Process Row-0 data 1*/ |
---|
3933 | curData = cur_data_pos[1]; |
---|
3934 | pred1D = P1[0]; |
---|
3935 | diff = curData - pred1D; |
---|
3936 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3937 | if (itvNum < exe_params->intvCapacity){ |
---|
3938 | if (diff < 0) itvNum = -itvNum; |
---|
3939 | type[1] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3940 | P1[1] = pred1D + 2 * (type[1] - exe_params->intvRadius) * realPrecision; |
---|
3941 | //ganrantee comporession error against the case of machine-epsilon |
---|
3942 | if(fabs(curData-P1[1])>realPrecision){ |
---|
3943 | type[1] = 0; |
---|
3944 | P1[1] = curData; |
---|
3945 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3946 | } |
---|
3947 | } |
---|
3948 | else{ |
---|
3949 | type[1] = 0; |
---|
3950 | P1[1] = curData; |
---|
3951 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3952 | } |
---|
3953 | |
---|
3954 | /* Process Row-0 data 2 --> data r2-1 */ |
---|
3955 | for (j = 2; j < r2; j++) |
---|
3956 | { |
---|
3957 | curData = cur_data_pos[j]; |
---|
3958 | pred1D = 2*P1[j-1] - P1[j-2]; |
---|
3959 | diff = curData - pred1D; |
---|
3960 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3961 | if (itvNum < exe_params->intvCapacity){ |
---|
3962 | if (diff < 0) itvNum = -itvNum; |
---|
3963 | type[j] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3964 | P1[j] = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
3965 | //ganrantee comporession error against the case of machine-epsilon |
---|
3966 | if(fabs(curData-P1[j])>realPrecision){ |
---|
3967 | type[j] = 0; |
---|
3968 | P1[j] = curData; |
---|
3969 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3970 | } |
---|
3971 | } |
---|
3972 | else{ |
---|
3973 | type[j] = 0; |
---|
3974 | P1[j] = curData; |
---|
3975 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3976 | } |
---|
3977 | } |
---|
3978 | cur_data_pos += dim0_offset; |
---|
3979 | /* Process Row-1 --> Row-r1-1 */ |
---|
3980 | size_t index; |
---|
3981 | for (i = 1; i < r1; i++) |
---|
3982 | { |
---|
3983 | /* Process row-i data 0 */ |
---|
3984 | index = i*r2; |
---|
3985 | curData = *cur_data_pos; |
---|
3986 | pred1D = P1[0]; |
---|
3987 | diff = curData - pred1D; |
---|
3988 | itvNum = fabs(diff)/realPrecision + 1; |
---|
3989 | if (itvNum < exe_params->intvCapacity){ |
---|
3990 | if (diff < 0) itvNum = -itvNum; |
---|
3991 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
3992 | P0[0] = pred1D + 2 * (type[j] - exe_params->intvRadius) * realPrecision; |
---|
3993 | //ganrantee comporession error against the case of machine-epsilon |
---|
3994 | if(fabs(curData-P0[0])>realPrecision){ |
---|
3995 | type[index] = 0; |
---|
3996 | P0[0] = curData; |
---|
3997 | unpredictable_data[unpredictable_count ++] = curData; |
---|
3998 | } |
---|
3999 | } |
---|
4000 | else{ |
---|
4001 | type[index] = 0; |
---|
4002 | P0[0] = curData; |
---|
4003 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4004 | } |
---|
4005 | |
---|
4006 | /* Process row-i data 1 --> r2-1*/ |
---|
4007 | for (j = 1; j < r2; j++) |
---|
4008 | { |
---|
4009 | index = i*r2+j; |
---|
4010 | curData = cur_data_pos[j]; |
---|
4011 | pred2D = P0[j-1] + P1[j] - P1[j-1]; |
---|
4012 | diff = curData - pred2D; |
---|
4013 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4014 | if (itvNum < exe_params->intvCapacity) |
---|
4015 | { |
---|
4016 | if (diff < 0) itvNum = -itvNum; |
---|
4017 | type[index] = (int) (itvNum/2) + exe_params->intvRadius; |
---|
4018 | P0[j] = pred2D + 2 * (type[index] - exe_params->intvRadius) * realPrecision; |
---|
4019 | |
---|
4020 | //ganrantee comporession error against the case of machine-epsilon |
---|
4021 | if(fabs(curData-P0[j])>realPrecision) |
---|
4022 | { |
---|
4023 | type[index] = 0; |
---|
4024 | P0[j] = curData; |
---|
4025 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4026 | } |
---|
4027 | } |
---|
4028 | else |
---|
4029 | { |
---|
4030 | type[index] = 0; |
---|
4031 | P0[j] = curData; |
---|
4032 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4033 | } |
---|
4034 | } |
---|
4035 | cur_data_pos += dim0_offset; |
---|
4036 | |
---|
4037 | float *Pt; |
---|
4038 | Pt = P1; |
---|
4039 | P1 = P0; |
---|
4040 | P0 = Pt; |
---|
4041 | } |
---|
4042 | return unpredictable_count; |
---|
4043 | } |
---|
4044 | |
---|
4045 | /*The above code is for sz 1.4.13; the following code is for sz 2.0*/ |
---|
4046 | |
---|
4047 | unsigned int optimize_intervals_float_2D_with_freq_and_dense_pos(float *oriData, size_t r1, size_t r2, double realPrecision, float * dense_pos, float * max_freq, float * mean_freq) |
---|
4048 | { |
---|
4049 | float mean = 0.0; |
---|
4050 | size_t len = r1 * r2; |
---|
4051 | size_t mean_distance = (int) (sqrt(len)); |
---|
4052 | |
---|
4053 | float * data_pos = oriData; |
---|
4054 | size_t mean_count = 0; |
---|
4055 | while(data_pos - oriData < len){ |
---|
4056 | mean += *data_pos; |
---|
4057 | mean_count ++; |
---|
4058 | data_pos += mean_distance; |
---|
4059 | } |
---|
4060 | if(mean_count > 0) mean /= mean_count; |
---|
4061 | size_t range = 8192; |
---|
4062 | size_t radius = 4096; |
---|
4063 | size_t * freq_intervals = (size_t *) malloc(range*sizeof(size_t)); |
---|
4064 | memset(freq_intervals, 0, range*sizeof(size_t)); |
---|
4065 | |
---|
4066 | unsigned int maxRangeRadius = confparams_cpr->maxRangeRadius; |
---|
4067 | int sampleDistance = confparams_cpr->sampleDistance; |
---|
4068 | float predThreshold = confparams_cpr->predThreshold; |
---|
4069 | |
---|
4070 | size_t i; |
---|
4071 | size_t radiusIndex; |
---|
4072 | float pred_value = 0, pred_err; |
---|
4073 | size_t *intervals = (size_t*)malloc(maxRangeRadius*sizeof(size_t)); |
---|
4074 | memset(intervals, 0, maxRangeRadius*sizeof(size_t)); |
---|
4075 | |
---|
4076 | float mean_diff; |
---|
4077 | ptrdiff_t freq_index; |
---|
4078 | size_t freq_count = 0; |
---|
4079 | size_t n1_count = 1; |
---|
4080 | size_t offset_count = sampleDistance - 1; |
---|
4081 | size_t offset_count_2 = 0; |
---|
4082 | size_t sample_count = 0; |
---|
4083 | data_pos = oriData + r2 + offset_count; |
---|
4084 | while(data_pos - oriData < len){ |
---|
4085 | pred_value = data_pos[-1] + data_pos[-r2] - data_pos[-r2-1]; |
---|
4086 | pred_err = fabs(pred_value - *data_pos); |
---|
4087 | if(pred_err < realPrecision) freq_count ++; |
---|
4088 | radiusIndex = (unsigned long)((pred_err/realPrecision+1)/2); |
---|
4089 | if(radiusIndex>=maxRangeRadius) |
---|
4090 | radiusIndex = maxRangeRadius - 1; |
---|
4091 | intervals[radiusIndex]++; |
---|
4092 | |
---|
4093 | mean_diff = *data_pos - mean; |
---|
4094 | if(mean_diff > 0) freq_index = (ptrdiff_t)(mean_diff/realPrecision) + radius; |
---|
4095 | else freq_index = (ptrdiff_t)(mean_diff/realPrecision) - 1 + radius; |
---|
4096 | if(freq_index <= 0){ |
---|
4097 | freq_intervals[0] ++; |
---|
4098 | } |
---|
4099 | else if(freq_index >= range){ |
---|
4100 | freq_intervals[range - 1] ++; |
---|
4101 | } |
---|
4102 | else{ |
---|
4103 | freq_intervals[freq_index] ++; |
---|
4104 | } |
---|
4105 | offset_count += sampleDistance; |
---|
4106 | if(offset_count >= r2){ |
---|
4107 | n1_count ++; |
---|
4108 | offset_count_2 = n1_count % sampleDistance; |
---|
4109 | data_pos += (r2 + sampleDistance - offset_count) + (sampleDistance - offset_count_2); |
---|
4110 | offset_count = (sampleDistance - offset_count_2); |
---|
4111 | if(offset_count == 0) offset_count ++; |
---|
4112 | } |
---|
4113 | else data_pos += sampleDistance; |
---|
4114 | sample_count ++; |
---|
4115 | } |
---|
4116 | *max_freq = freq_count * 1.0/ sample_count; |
---|
4117 | |
---|
4118 | //compute the appropriate number |
---|
4119 | size_t targetCount = sample_count*predThreshold; |
---|
4120 | size_t sum = 0; |
---|
4121 | for(i=0;i<maxRangeRadius;i++) |
---|
4122 | { |
---|
4123 | sum += intervals[i]; |
---|
4124 | if(sum>targetCount) |
---|
4125 | break; |
---|
4126 | } |
---|
4127 | if(i>=maxRangeRadius) |
---|
4128 | i = maxRangeRadius-1; |
---|
4129 | unsigned int accIntervals = 2*(i+1); |
---|
4130 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
4131 | |
---|
4132 | if(powerOf2<32) |
---|
4133 | powerOf2 = 32; |
---|
4134 | |
---|
4135 | // collect frequency |
---|
4136 | size_t max_sum = 0; |
---|
4137 | size_t max_index = 0; |
---|
4138 | size_t tmp_sum; |
---|
4139 | size_t * freq_pos = freq_intervals + 1; |
---|
4140 | for(size_t i=1; i<range-2; i++){ |
---|
4141 | tmp_sum = freq_pos[0] + freq_pos[1]; |
---|
4142 | if(tmp_sum > max_sum){ |
---|
4143 | max_sum = tmp_sum; |
---|
4144 | max_index = i; |
---|
4145 | } |
---|
4146 | freq_pos ++; |
---|
4147 | } |
---|
4148 | *dense_pos = mean + realPrecision * (ptrdiff_t)(max_index + 1 - radius); |
---|
4149 | *mean_freq = max_sum * 1.0 / sample_count; |
---|
4150 | |
---|
4151 | free(freq_intervals); |
---|
4152 | free(intervals); |
---|
4153 | return powerOf2; |
---|
4154 | } |
---|
4155 | |
---|
4156 | // 2D: modified for higher performance |
---|
4157 | #define MIN(a, b) a<b? a : b |
---|
4158 | unsigned char * SZ_compress_float_2D_MDQ_nonblocked_with_blocked_regression(float *oriData, size_t r1, size_t r2, double realPrecision, size_t * comp_size){ |
---|
4159 | |
---|
4160 | unsigned int quantization_intervals; |
---|
4161 | float sz_sample_correct_freq = -1;//0.5; //-1 |
---|
4162 | float dense_pos; |
---|
4163 | float mean_flush_freq; |
---|
4164 | unsigned char use_mean = 0; |
---|
4165 | |
---|
4166 | if(exe_params->optQuantMode==1) |
---|
4167 | { |
---|
4168 | quantization_intervals = optimize_intervals_float_2D_with_freq_and_dense_pos(oriData, r1, r2, realPrecision, &dense_pos, &sz_sample_correct_freq, &mean_flush_freq); |
---|
4169 | if(mean_flush_freq > 0.5 || mean_flush_freq > sz_sample_correct_freq) use_mean = 1; |
---|
4170 | updateQuantizationInfo(quantization_intervals); |
---|
4171 | } |
---|
4172 | else{ |
---|
4173 | quantization_intervals = exe_params->intvCapacity; |
---|
4174 | } |
---|
4175 | |
---|
4176 | // calculate block dims |
---|
4177 | size_t num_x, num_y; |
---|
4178 | size_t block_size = 16; |
---|
4179 | |
---|
4180 | SZ_COMPUTE_2D_NUMBER_OF_BLOCKS(r1, num_x, block_size); |
---|
4181 | SZ_COMPUTE_2D_NUMBER_OF_BLOCKS(r2, num_y, block_size); |
---|
4182 | |
---|
4183 | size_t split_index_x, split_index_y; |
---|
4184 | size_t early_blockcount_x, early_blockcount_y; |
---|
4185 | size_t late_blockcount_x, late_blockcount_y; |
---|
4186 | SZ_COMPUTE_BLOCKCOUNT(r1, num_x, split_index_x, early_blockcount_x, late_blockcount_x); |
---|
4187 | SZ_COMPUTE_BLOCKCOUNT(r2, num_y, split_index_y, early_blockcount_y, late_blockcount_y); |
---|
4188 | |
---|
4189 | size_t max_num_block_elements = early_blockcount_x * early_blockcount_y; |
---|
4190 | size_t num_blocks = num_x * num_y; |
---|
4191 | size_t num_elements = r1 * r2; |
---|
4192 | |
---|
4193 | size_t dim0_offset = r2; |
---|
4194 | |
---|
4195 | int * result_type = (int *) malloc(num_elements * sizeof(int)); |
---|
4196 | size_t unpred_data_max_size = max_num_block_elements; |
---|
4197 | float * result_unpredictable_data = (float *) malloc(unpred_data_max_size * sizeof(float) * num_blocks); |
---|
4198 | size_t total_unpred = 0; |
---|
4199 | size_t unpredictable_count; |
---|
4200 | float * data_pos = oriData; |
---|
4201 | int * type = result_type; |
---|
4202 | size_t offset_x, offset_y; |
---|
4203 | size_t current_blockcount_x, current_blockcount_y; |
---|
4204 | |
---|
4205 | float * reg_params = (float *) malloc(num_blocks * 4 * sizeof(float)); |
---|
4206 | float * reg_params_pos = reg_params; |
---|
4207 | // move regression part out |
---|
4208 | size_t params_offset_b = num_blocks; |
---|
4209 | size_t params_offset_c = 2*num_blocks; |
---|
4210 | for(size_t i=0; i<num_x; i++){ |
---|
4211 | for(size_t j=0; j<num_y; j++){ |
---|
4212 | current_blockcount_x = (i < split_index_x) ? early_blockcount_x : late_blockcount_x; |
---|
4213 | current_blockcount_y = (j < split_index_y) ? early_blockcount_y : late_blockcount_y; |
---|
4214 | offset_x = (i < split_index_x) ? i * early_blockcount_x : i * late_blockcount_x + split_index_x; |
---|
4215 | offset_y = (j < split_index_y) ? j * early_blockcount_y : j * late_blockcount_y + split_index_y; |
---|
4216 | |
---|
4217 | data_pos = oriData + offset_x * dim0_offset + offset_y; |
---|
4218 | |
---|
4219 | { |
---|
4220 | float * cur_data_pos = data_pos; |
---|
4221 | float fx = 0.0; |
---|
4222 | float fy = 0.0; |
---|
4223 | float f = 0; |
---|
4224 | double sum_x; |
---|
4225 | float curData; |
---|
4226 | for(size_t i=0; i<current_blockcount_x; i++){ |
---|
4227 | sum_x = 0; |
---|
4228 | for(size_t j=0; j<current_blockcount_y; j++){ |
---|
4229 | curData = *cur_data_pos; |
---|
4230 | sum_x += curData; |
---|
4231 | fy += curData * j; |
---|
4232 | cur_data_pos ++; |
---|
4233 | } |
---|
4234 | fx += sum_x * i; |
---|
4235 | f += sum_x; |
---|
4236 | cur_data_pos += dim0_offset - current_blockcount_y; |
---|
4237 | } |
---|
4238 | float coeff = 1.0 / (current_blockcount_x * current_blockcount_y); |
---|
4239 | reg_params_pos[0] = (2 * fx / (current_blockcount_x - 1) - f) * 6 * coeff / (current_blockcount_x + 1); |
---|
4240 | reg_params_pos[params_offset_b] = (2 * fy / (current_blockcount_y - 1) - f) * 6 * coeff / (current_blockcount_y + 1); |
---|
4241 | reg_params_pos[params_offset_c] = f * coeff - ((current_blockcount_x - 1) * reg_params_pos[0] / 2 + (current_blockcount_y - 1) * reg_params_pos[params_offset_b] / 2); |
---|
4242 | } |
---|
4243 | |
---|
4244 | reg_params_pos ++; |
---|
4245 | } |
---|
4246 | } |
---|
4247 | |
---|
4248 | //Compress coefficient arrays |
---|
4249 | double precision_a, precision_b, precision_c; |
---|
4250 | float rel_param_err = 0.15/3; |
---|
4251 | precision_a = rel_param_err * realPrecision / late_blockcount_x; |
---|
4252 | precision_b = rel_param_err * realPrecision / late_blockcount_y; |
---|
4253 | precision_c = rel_param_err * realPrecision; |
---|
4254 | |
---|
4255 | float mean = 0; |
---|
4256 | use_mean = 0; |
---|
4257 | if(use_mean){ |
---|
4258 | // compute mean |
---|
4259 | double sum = 0.0; |
---|
4260 | size_t mean_count = 0; |
---|
4261 | for(size_t i=0; i<num_elements; i++){ |
---|
4262 | if(fabs(oriData[i] - dense_pos) < realPrecision){ |
---|
4263 | sum += oriData[i]; |
---|
4264 | mean_count ++; |
---|
4265 | } |
---|
4266 | } |
---|
4267 | if(mean_count > 0) mean = sum / mean_count; |
---|
4268 | } |
---|
4269 | |
---|
4270 | |
---|
4271 | double tmp_realPrecision = realPrecision; |
---|
4272 | |
---|
4273 | // use two prediction buffers for higher performance |
---|
4274 | float * unpredictable_data = result_unpredictable_data; |
---|
4275 | unsigned char * indicator = (unsigned char *) malloc(num_blocks * sizeof(unsigned char)); |
---|
4276 | memset(indicator, 0, num_blocks * sizeof(unsigned char)); |
---|
4277 | size_t reg_count = 0; |
---|
4278 | size_t strip_dim_0 = early_blockcount_x + 1; |
---|
4279 | size_t strip_dim_1 = r2 + 1; |
---|
4280 | size_t strip_dim0_offset = strip_dim_1; |
---|
4281 | unsigned char * indicator_pos = indicator; |
---|
4282 | size_t prediction_buffer_size = strip_dim_0 * strip_dim0_offset * sizeof(float); |
---|
4283 | float * prediction_buffer_1 = (float *) malloc(prediction_buffer_size); |
---|
4284 | memset(prediction_buffer_1, 0, prediction_buffer_size); |
---|
4285 | float * prediction_buffer_2 = (float *) malloc(prediction_buffer_size); |
---|
4286 | memset(prediction_buffer_2, 0, prediction_buffer_size); |
---|
4287 | float * cur_pb_buf = prediction_buffer_1; |
---|
4288 | float * next_pb_buf = prediction_buffer_2; |
---|
4289 | float * cur_pb_buf_pos; |
---|
4290 | float * next_pb_buf_pos; |
---|
4291 | int intvCapacity = exe_params->intvCapacity; |
---|
4292 | int intvRadius = exe_params->intvRadius; |
---|
4293 | int use_reg = 0; |
---|
4294 | |
---|
4295 | reg_params_pos = reg_params; |
---|
4296 | // compress the regression coefficients on the fly |
---|
4297 | float last_coeffcients[3] = {0.0}; |
---|
4298 | int coeff_intvCapacity_sz = 65536; |
---|
4299 | int coeff_intvRadius = coeff_intvCapacity_sz / 2; |
---|
4300 | int * coeff_type[3]; |
---|
4301 | int * coeff_result_type = (int *) malloc(num_blocks*3*sizeof(int)); |
---|
4302 | float * coeff_unpred_data[3]; |
---|
4303 | float * coeff_unpredictable_data = (float *) malloc(num_blocks*3*sizeof(float)); |
---|
4304 | double precision[3]; |
---|
4305 | precision[0] = precision_a, precision[1] = precision_b, precision[2] = precision_c; |
---|
4306 | for(int i=0; i<3; i++){ |
---|
4307 | coeff_type[i] = coeff_result_type + i * num_blocks; |
---|
4308 | coeff_unpred_data[i] = coeff_unpredictable_data + i * num_blocks; |
---|
4309 | } |
---|
4310 | int coeff_index = 0; |
---|
4311 | unsigned int coeff_unpredictable_count[3] = {0}; |
---|
4312 | if(use_mean){ |
---|
4313 | type = result_type; |
---|
4314 | int intvCapacity_sz = intvCapacity - 2; |
---|
4315 | for(size_t i=0; i<num_x; i++){ |
---|
4316 | current_blockcount_x = (i < split_index_x) ? early_blockcount_x : late_blockcount_x; |
---|
4317 | offset_x = (i < split_index_x) ? i * early_blockcount_x : i * late_blockcount_x + split_index_x; |
---|
4318 | data_pos = oriData + offset_x * dim0_offset; |
---|
4319 | |
---|
4320 | cur_pb_buf_pos = cur_pb_buf + strip_dim0_offset + 1; |
---|
4321 | next_pb_buf_pos = next_pb_buf + 1; |
---|
4322 | float * pb_pos = cur_pb_buf_pos; |
---|
4323 | float * next_pb_pos = next_pb_buf_pos; |
---|
4324 | |
---|
4325 | for(size_t j=0; j<num_y; j++){ |
---|
4326 | offset_y = (j < split_index_y) ? j * early_blockcount_y : j * late_blockcount_y + split_index_y; |
---|
4327 | current_blockcount_y = (j < split_index_y) ? early_blockcount_y : late_blockcount_y; |
---|
4328 | |
---|
4329 | /*sampling: decide which predictor to use (regression or lorenzo)*/ |
---|
4330 | { |
---|
4331 | float * cur_data_pos; |
---|
4332 | float curData; |
---|
4333 | float pred_reg, pred_sz; |
---|
4334 | float err_sz = 0.0, err_reg = 0.0; |
---|
4335 | // [1, 1] [3, 3] [5, 5] [7, 7] [9, 9] |
---|
4336 | // [1, 9] [3, 7] [7, 3] [9, 1] |
---|
4337 | int count = 0; |
---|
4338 | for(int i=1; i<current_blockcount_x; i+=2){ |
---|
4339 | cur_data_pos = data_pos + i * dim0_offset + i; |
---|
4340 | curData = *cur_data_pos; |
---|
4341 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim0_offset] - cur_data_pos[-dim0_offset - 1]; |
---|
4342 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c]; |
---|
4343 | |
---|
4344 | err_sz += MIN(fabs(pred_sz - curData) + realPrecision*0.81, fabs(mean - curData)); |
---|
4345 | |
---|
4346 | err_reg += fabs(pred_reg - curData); |
---|
4347 | |
---|
4348 | cur_data_pos = data_pos + i * dim0_offset + (block_size - i); |
---|
4349 | curData = *cur_data_pos; |
---|
4350 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim0_offset] - cur_data_pos[-dim0_offset - 1]; |
---|
4351 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * (block_size - i) + reg_params_pos[params_offset_c]; |
---|
4352 | err_sz += MIN(fabs(pred_sz - curData) + realPrecision*0.81, fabs(mean - curData)); |
---|
4353 | |
---|
4354 | err_reg += fabs(pred_reg - curData); |
---|
4355 | |
---|
4356 | count += 2; |
---|
4357 | } |
---|
4358 | |
---|
4359 | use_reg = (err_reg < err_sz); |
---|
4360 | } |
---|
4361 | if(use_reg) |
---|
4362 | { |
---|
4363 | { |
---|
4364 | /*predict coefficients in current block via previous reg_block*/ |
---|
4365 | float cur_coeff; |
---|
4366 | double diff, itvNum; |
---|
4367 | for(int e=0; e<3; e++){ |
---|
4368 | cur_coeff = reg_params_pos[e*num_blocks]; |
---|
4369 | diff = cur_coeff - last_coeffcients[e]; |
---|
4370 | itvNum = fabs(diff)/precision[e] + 1; |
---|
4371 | if (itvNum < coeff_intvCapacity_sz){ |
---|
4372 | if (diff < 0) itvNum = -itvNum; |
---|
4373 | coeff_type[e][coeff_index] = (int) (itvNum/2) + coeff_intvRadius; |
---|
4374 | last_coeffcients[e] = last_coeffcients[e] + 2 * (coeff_type[e][coeff_index] - coeff_intvRadius) * precision[e]; |
---|
4375 | //ganrantee comporession error against the case of machine-epsilon |
---|
4376 | if(fabs(cur_coeff - last_coeffcients[e])>precision[e]){ |
---|
4377 | coeff_type[e][coeff_index] = 0; |
---|
4378 | last_coeffcients[e] = cur_coeff; |
---|
4379 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
4380 | } |
---|
4381 | } |
---|
4382 | else{ |
---|
4383 | coeff_type[e][coeff_index] = 0; |
---|
4384 | last_coeffcients[e] = cur_coeff; |
---|
4385 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
4386 | } |
---|
4387 | } |
---|
4388 | coeff_index ++; |
---|
4389 | } |
---|
4390 | float curData; |
---|
4391 | float pred; |
---|
4392 | double itvNum; |
---|
4393 | double diff; |
---|
4394 | size_t index = 0; |
---|
4395 | size_t block_unpredictable_count = 0; |
---|
4396 | float * cur_data_pos = data_pos; |
---|
4397 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
4398 | for(size_t jj=0; jj<current_blockcount_y - 1; jj++){ |
---|
4399 | curData = *cur_data_pos; |
---|
4400 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4401 | diff = curData - pred; |
---|
4402 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4403 | if (itvNum < intvCapacity){ |
---|
4404 | if (diff < 0) itvNum = -itvNum; |
---|
4405 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4406 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4407 | //ganrantee comporession error against the case of machine-epsilon |
---|
4408 | if(fabs(curData - pred)>realPrecision){ |
---|
4409 | type[index] = 0; |
---|
4410 | pred = curData; |
---|
4411 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4412 | } |
---|
4413 | } |
---|
4414 | else{ |
---|
4415 | type[index] = 0; |
---|
4416 | pred = curData; |
---|
4417 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4418 | } |
---|
4419 | index ++; |
---|
4420 | cur_data_pos ++; |
---|
4421 | } |
---|
4422 | /*dealing with the last jj (boundary)*/ |
---|
4423 | { |
---|
4424 | size_t jj = current_blockcount_y - 1; |
---|
4425 | curData = *cur_data_pos; |
---|
4426 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4427 | diff = curData - pred; |
---|
4428 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4429 | if (itvNum < intvCapacity){ |
---|
4430 | if (diff < 0) itvNum = -itvNum; |
---|
4431 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4432 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4433 | //ganrantee comporession error against the case of machine-epsilon |
---|
4434 | if(fabs(curData - pred)>realPrecision){ |
---|
4435 | type[index] = 0; |
---|
4436 | pred = curData; |
---|
4437 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4438 | } |
---|
4439 | } |
---|
4440 | else{ |
---|
4441 | type[index] = 0; |
---|
4442 | pred = curData; |
---|
4443 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4444 | } |
---|
4445 | |
---|
4446 | // assign value to block surfaces |
---|
4447 | pb_pos[ii * strip_dim0_offset + jj] = pred; |
---|
4448 | index ++; |
---|
4449 | cur_data_pos ++; |
---|
4450 | } |
---|
4451 | cur_data_pos += dim0_offset - current_blockcount_y; |
---|
4452 | } |
---|
4453 | /*dealing with the last ii (boundary)*/ |
---|
4454 | { |
---|
4455 | size_t ii = current_blockcount_x - 1; |
---|
4456 | for(size_t jj=0; jj<current_blockcount_y - 1; jj++){ |
---|
4457 | curData = *cur_data_pos; |
---|
4458 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4459 | diff = curData - pred; |
---|
4460 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4461 | if (itvNum < intvCapacity){ |
---|
4462 | if (diff < 0) itvNum = -itvNum; |
---|
4463 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4464 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4465 | //ganrantee comporession error against the case of machine-epsilon |
---|
4466 | if(fabs(curData - pred)>realPrecision){ |
---|
4467 | type[index] = 0; |
---|
4468 | pred = curData; |
---|
4469 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4470 | } |
---|
4471 | } |
---|
4472 | else{ |
---|
4473 | type[index] = 0; |
---|
4474 | pred = curData; |
---|
4475 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4476 | } |
---|
4477 | // assign value to next prediction buffer |
---|
4478 | next_pb_pos[jj] = pred; |
---|
4479 | index ++; |
---|
4480 | cur_data_pos ++; |
---|
4481 | } |
---|
4482 | /*dealing with the last jj (boundary)*/ |
---|
4483 | { |
---|
4484 | size_t jj = current_blockcount_y - 1; |
---|
4485 | curData = *cur_data_pos; |
---|
4486 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4487 | diff = curData - pred; |
---|
4488 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4489 | if (itvNum < intvCapacity){ |
---|
4490 | if (diff < 0) itvNum = -itvNum; |
---|
4491 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4492 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4493 | //ganrantee comporession error against the case of machine-epsilon |
---|
4494 | if(fabs(curData - pred)>realPrecision){ |
---|
4495 | type[index] = 0; |
---|
4496 | pred = curData; |
---|
4497 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4498 | } |
---|
4499 | } |
---|
4500 | else{ |
---|
4501 | type[index] = 0; |
---|
4502 | pred = curData; |
---|
4503 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4504 | } |
---|
4505 | |
---|
4506 | // assign value to block surfaces |
---|
4507 | pb_pos[ii * strip_dim0_offset + jj] = pred; |
---|
4508 | // assign value to next prediction buffer |
---|
4509 | next_pb_pos[jj] = pred; |
---|
4510 | |
---|
4511 | index ++; |
---|
4512 | cur_data_pos ++; |
---|
4513 | } |
---|
4514 | } // end ii == -1 |
---|
4515 | unpredictable_count = block_unpredictable_count; |
---|
4516 | total_unpred += unpredictable_count; |
---|
4517 | unpredictable_data += unpredictable_count; |
---|
4518 | reg_count ++; |
---|
4519 | }// end use_reg |
---|
4520 | else{ |
---|
4521 | // use SZ |
---|
4522 | // SZ predication |
---|
4523 | unpredictable_count = 0; |
---|
4524 | float * cur_pb_pos = pb_pos; |
---|
4525 | float * cur_data_pos = data_pos; |
---|
4526 | float curData; |
---|
4527 | float pred2D; |
---|
4528 | double itvNum, diff; |
---|
4529 | size_t index = 0; |
---|
4530 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
4531 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
4532 | curData = *cur_data_pos; |
---|
4533 | if(fabs(curData - mean) <= realPrecision){ |
---|
4534 | // adjust type[index] to intvRadius for coherence with freq in reg |
---|
4535 | type[index] = intvRadius; |
---|
4536 | *cur_pb_pos = mean; |
---|
4537 | } |
---|
4538 | else |
---|
4539 | { |
---|
4540 | pred2D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim0_offset - 1]; |
---|
4541 | diff = curData - pred2D; |
---|
4542 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4543 | if (itvNum < intvCapacity_sz){ |
---|
4544 | if (diff < 0) itvNum = -itvNum; |
---|
4545 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4546 | *cur_pb_pos = pred2D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
4547 | if(type[index] <= intvRadius) type[index] -= 1; |
---|
4548 | //ganrantee comporession error against the case of machine-epsilon |
---|
4549 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
4550 | type[index] = 0; |
---|
4551 | *cur_pb_pos = curData; |
---|
4552 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4553 | } |
---|
4554 | } |
---|
4555 | else{ |
---|
4556 | type[index] = 0; |
---|
4557 | *cur_pb_pos = curData; |
---|
4558 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4559 | } |
---|
4560 | } |
---|
4561 | index ++; |
---|
4562 | cur_pb_pos ++; |
---|
4563 | cur_data_pos ++; |
---|
4564 | } |
---|
4565 | cur_pb_pos += strip_dim0_offset - current_blockcount_y; |
---|
4566 | cur_data_pos += dim0_offset - current_blockcount_y; |
---|
4567 | } |
---|
4568 | /*dealing with the last ii (boundary)*/ |
---|
4569 | { |
---|
4570 | // ii == current_blockcount_x - 1 |
---|
4571 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
4572 | curData = *cur_data_pos; |
---|
4573 | if(fabs(curData - mean) <= realPrecision){ |
---|
4574 | // adjust type[index] to intvRadius for coherence with freq in reg |
---|
4575 | type[index] = intvRadius; |
---|
4576 | *cur_pb_pos = mean; |
---|
4577 | } |
---|
4578 | else |
---|
4579 | { |
---|
4580 | pred2D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim0_offset - 1]; |
---|
4581 | diff = curData - pred2D; |
---|
4582 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4583 | if (itvNum < intvCapacity_sz){ |
---|
4584 | if (diff < 0) itvNum = -itvNum; |
---|
4585 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4586 | *cur_pb_pos = pred2D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
4587 | if(type[index] <= intvRadius) type[index] -= 1; |
---|
4588 | //ganrantee comporession error against the case of machine-epsilon |
---|
4589 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
4590 | type[index] = 0; |
---|
4591 | *cur_pb_pos = curData; |
---|
4592 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4593 | } |
---|
4594 | } |
---|
4595 | else{ |
---|
4596 | type[index] = 0; |
---|
4597 | *cur_pb_pos = curData; |
---|
4598 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4599 | } |
---|
4600 | } |
---|
4601 | next_pb_pos[jj] = *cur_pb_pos; |
---|
4602 | index ++; |
---|
4603 | cur_pb_pos ++; |
---|
4604 | cur_data_pos ++; |
---|
4605 | } |
---|
4606 | } |
---|
4607 | total_unpred += unpredictable_count; |
---|
4608 | unpredictable_data += unpredictable_count; |
---|
4609 | // change indicator |
---|
4610 | indicator_pos[j] = 1; |
---|
4611 | }// end SZ |
---|
4612 | reg_params_pos ++; |
---|
4613 | data_pos += current_blockcount_y; |
---|
4614 | pb_pos += current_blockcount_y; |
---|
4615 | next_pb_pos += current_blockcount_y; |
---|
4616 | type += current_blockcount_x * current_blockcount_y; |
---|
4617 | }// end j |
---|
4618 | indicator_pos += num_y; |
---|
4619 | float * tmp; |
---|
4620 | tmp = cur_pb_buf; |
---|
4621 | cur_pb_buf = next_pb_buf; |
---|
4622 | next_pb_buf = tmp; |
---|
4623 | }// end i |
---|
4624 | }// end use mean |
---|
4625 | else{ |
---|
4626 | type = result_type; |
---|
4627 | int intvCapacity_sz = intvCapacity - 2; |
---|
4628 | for(size_t i=0; i<num_x; i++){ |
---|
4629 | current_blockcount_x = (i < split_index_x) ? early_blockcount_x : late_blockcount_x; |
---|
4630 | offset_x = (i < split_index_x) ? i * early_blockcount_x : i * late_blockcount_x + split_index_x; |
---|
4631 | data_pos = oriData + offset_x * dim0_offset; |
---|
4632 | |
---|
4633 | cur_pb_buf_pos = cur_pb_buf + strip_dim0_offset + 1; |
---|
4634 | next_pb_buf_pos = next_pb_buf + 1; |
---|
4635 | float * pb_pos = cur_pb_buf_pos; |
---|
4636 | float * next_pb_pos = next_pb_buf_pos; |
---|
4637 | |
---|
4638 | for(size_t j=0; j<num_y; j++){ |
---|
4639 | offset_y = (j < split_index_y) ? j * early_blockcount_y : j * late_blockcount_y + split_index_y; |
---|
4640 | current_blockcount_y = (j < split_index_y) ? early_blockcount_y : late_blockcount_y; |
---|
4641 | /*sampling*/ |
---|
4642 | { |
---|
4643 | // sample [2i + 1, 2i + 1] [2i + 1, bs - 2i] |
---|
4644 | float * cur_data_pos; |
---|
4645 | float curData; |
---|
4646 | float pred_reg, pred_sz; |
---|
4647 | float err_sz = 0.0, err_reg = 0.0; |
---|
4648 | // [1, 1] [3, 3] [5, 5] [7, 7] [9, 9] |
---|
4649 | // [1, 9] [3, 7] [7, 3] [9, 1] |
---|
4650 | int count = 0; |
---|
4651 | for(int i=1; i<current_blockcount_x; i+=2){ |
---|
4652 | cur_data_pos = data_pos + i * dim0_offset + i; |
---|
4653 | curData = *cur_data_pos; |
---|
4654 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim0_offset] - cur_data_pos[-dim0_offset - 1]; |
---|
4655 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c]; |
---|
4656 | err_sz += fabs(pred_sz - curData); |
---|
4657 | err_reg += fabs(pred_reg - curData); |
---|
4658 | |
---|
4659 | cur_data_pos = data_pos + i * dim0_offset + (block_size - i); |
---|
4660 | curData = *cur_data_pos; |
---|
4661 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim0_offset] - cur_data_pos[-dim0_offset - 1]; |
---|
4662 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * (block_size - i) + reg_params_pos[params_offset_c]; |
---|
4663 | err_sz += fabs(pred_sz - curData); |
---|
4664 | err_reg += fabs(pred_reg - curData); |
---|
4665 | |
---|
4666 | count += 2; |
---|
4667 | } |
---|
4668 | err_sz += realPrecision * count * 0.81; |
---|
4669 | use_reg = (err_reg < err_sz); |
---|
4670 | |
---|
4671 | } |
---|
4672 | if(use_reg) |
---|
4673 | { |
---|
4674 | { |
---|
4675 | /*predict coefficients in current block via previous reg_block*/ |
---|
4676 | float cur_coeff; |
---|
4677 | double diff, itvNum; |
---|
4678 | for(int e=0; e<3; e++){ |
---|
4679 | cur_coeff = reg_params_pos[e*num_blocks]; |
---|
4680 | diff = cur_coeff - last_coeffcients[e]; |
---|
4681 | itvNum = fabs(diff)/precision[e] + 1; |
---|
4682 | if (itvNum < coeff_intvCapacity_sz){ |
---|
4683 | if (diff < 0) itvNum = -itvNum; |
---|
4684 | coeff_type[e][coeff_index] = (int) (itvNum/2) + coeff_intvRadius; |
---|
4685 | last_coeffcients[e] = last_coeffcients[e] + 2 * (coeff_type[e][coeff_index] - coeff_intvRadius) * precision[e]; |
---|
4686 | //ganrantee comporession error against the case of machine-epsilon |
---|
4687 | if(fabs(cur_coeff - last_coeffcients[e])>precision[e]){ |
---|
4688 | coeff_type[e][coeff_index] = 0; |
---|
4689 | last_coeffcients[e] = cur_coeff; |
---|
4690 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
4691 | } |
---|
4692 | } |
---|
4693 | else{ |
---|
4694 | coeff_type[e][coeff_index] = 0; |
---|
4695 | last_coeffcients[e] = cur_coeff; |
---|
4696 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
4697 | } |
---|
4698 | } |
---|
4699 | coeff_index ++; |
---|
4700 | } |
---|
4701 | float curData; |
---|
4702 | float pred; |
---|
4703 | double itvNum; |
---|
4704 | double diff; |
---|
4705 | size_t index = 0; |
---|
4706 | size_t block_unpredictable_count = 0; |
---|
4707 | float * cur_data_pos = data_pos; |
---|
4708 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
4709 | for(size_t jj=0; jj<current_blockcount_y - 1; jj++){ |
---|
4710 | curData = *cur_data_pos; |
---|
4711 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4712 | diff = curData - pred; |
---|
4713 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4714 | if (itvNum < intvCapacity){ |
---|
4715 | if (diff < 0) itvNum = -itvNum; |
---|
4716 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4717 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4718 | //ganrantee comporession error against the case of machine-epsilon |
---|
4719 | if(fabs(curData - pred)>realPrecision){ |
---|
4720 | type[index] = 0; |
---|
4721 | pred = curData; |
---|
4722 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4723 | } |
---|
4724 | } |
---|
4725 | else{ |
---|
4726 | type[index] = 0; |
---|
4727 | pred = curData; |
---|
4728 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4729 | } |
---|
4730 | index ++; |
---|
4731 | cur_data_pos ++; |
---|
4732 | } |
---|
4733 | /*dealing with the last jj (boundary)*/ |
---|
4734 | { |
---|
4735 | // jj == current_blockcount_y - 1 |
---|
4736 | size_t jj = current_blockcount_y - 1; |
---|
4737 | curData = *cur_data_pos; |
---|
4738 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4739 | diff = curData - pred; |
---|
4740 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4741 | if (itvNum < intvCapacity){ |
---|
4742 | if (diff < 0) itvNum = -itvNum; |
---|
4743 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4744 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4745 | //ganrantee comporession error against the case of machine-epsilon |
---|
4746 | if(fabs(curData - pred)>realPrecision){ |
---|
4747 | type[index] = 0; |
---|
4748 | pred = curData; |
---|
4749 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4750 | } |
---|
4751 | } |
---|
4752 | else{ |
---|
4753 | type[index] = 0; |
---|
4754 | pred = curData; |
---|
4755 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4756 | } |
---|
4757 | |
---|
4758 | // assign value to block surfaces |
---|
4759 | pb_pos[ii * strip_dim0_offset + jj] = pred; |
---|
4760 | index ++; |
---|
4761 | cur_data_pos ++; |
---|
4762 | } |
---|
4763 | cur_data_pos += dim0_offset - current_blockcount_y; |
---|
4764 | } |
---|
4765 | /*dealing with the last ii (boundary)*/ |
---|
4766 | { |
---|
4767 | size_t ii = current_blockcount_x - 1; |
---|
4768 | for(size_t jj=0; jj<current_blockcount_y - 1; jj++){ |
---|
4769 | curData = *cur_data_pos; |
---|
4770 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4771 | diff = curData - pred; |
---|
4772 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4773 | if (itvNum < intvCapacity){ |
---|
4774 | if (diff < 0) itvNum = -itvNum; |
---|
4775 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4776 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4777 | //ganrantee comporession error against the case of machine-epsilon |
---|
4778 | if(fabs(curData - pred)>realPrecision){ |
---|
4779 | type[index] = 0; |
---|
4780 | pred = curData; |
---|
4781 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4782 | } |
---|
4783 | } |
---|
4784 | else{ |
---|
4785 | type[index] = 0; |
---|
4786 | pred = curData; |
---|
4787 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4788 | } |
---|
4789 | // assign value to next prediction buffer |
---|
4790 | next_pb_pos[jj] = pred; |
---|
4791 | index ++; |
---|
4792 | cur_data_pos ++; |
---|
4793 | } |
---|
4794 | /*dealing with the last jj (boundary)*/ |
---|
4795 | { |
---|
4796 | // jj == current_blockcount_y - 1 |
---|
4797 | size_t jj = current_blockcount_y - 1; |
---|
4798 | curData = *cur_data_pos; |
---|
4799 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2]; |
---|
4800 | diff = curData - pred; |
---|
4801 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4802 | if (itvNum < intvCapacity){ |
---|
4803 | if (diff < 0) itvNum = -itvNum; |
---|
4804 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4805 | pred = pred + 2 * (type[index] - intvRadius) * realPrecision; |
---|
4806 | //ganrantee comporession error against the case of machine-epsilon |
---|
4807 | if(fabs(curData - pred)>realPrecision){ |
---|
4808 | type[index] = 0; |
---|
4809 | pred = curData; |
---|
4810 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4811 | } |
---|
4812 | } |
---|
4813 | else{ |
---|
4814 | type[index] = 0; |
---|
4815 | pred = curData; |
---|
4816 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
4817 | } |
---|
4818 | |
---|
4819 | // assign value to block surfaces |
---|
4820 | pb_pos[ii * strip_dim0_offset + jj] = pred; |
---|
4821 | // assign value to next prediction buffer |
---|
4822 | next_pb_pos[jj] = pred; |
---|
4823 | |
---|
4824 | index ++; |
---|
4825 | cur_data_pos ++; |
---|
4826 | } |
---|
4827 | } // end ii == -1 |
---|
4828 | unpredictable_count = block_unpredictable_count; |
---|
4829 | total_unpred += unpredictable_count; |
---|
4830 | unpredictable_data += unpredictable_count; |
---|
4831 | reg_count ++; |
---|
4832 | }// end use_reg |
---|
4833 | else{ |
---|
4834 | // use SZ |
---|
4835 | // SZ predication |
---|
4836 | unpredictable_count = 0; |
---|
4837 | float * cur_pb_pos = pb_pos; |
---|
4838 | float * cur_data_pos = data_pos; |
---|
4839 | float curData; |
---|
4840 | float pred2D; |
---|
4841 | double itvNum, diff; |
---|
4842 | size_t index = 0; |
---|
4843 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
4844 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
4845 | curData = *cur_data_pos; |
---|
4846 | |
---|
4847 | pred2D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim0_offset - 1]; |
---|
4848 | diff = curData - pred2D; |
---|
4849 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4850 | if (itvNum < intvCapacity_sz){ |
---|
4851 | if (diff < 0) itvNum = -itvNum; |
---|
4852 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4853 | *cur_pb_pos = pred2D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
4854 | //ganrantee comporession error against the case of machine-epsilon |
---|
4855 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
4856 | type[index] = 0; |
---|
4857 | *cur_pb_pos = curData; |
---|
4858 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4859 | } |
---|
4860 | } |
---|
4861 | else{ |
---|
4862 | type[index] = 0; |
---|
4863 | *cur_pb_pos = curData; |
---|
4864 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4865 | } |
---|
4866 | |
---|
4867 | index ++; |
---|
4868 | cur_pb_pos ++; |
---|
4869 | cur_data_pos ++; |
---|
4870 | } |
---|
4871 | cur_pb_pos += strip_dim0_offset - current_blockcount_y; |
---|
4872 | cur_data_pos += dim0_offset - current_blockcount_y; |
---|
4873 | } |
---|
4874 | /*dealing with the last ii (boundary)*/ |
---|
4875 | { |
---|
4876 | // ii == current_blockcount_x - 1 |
---|
4877 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
4878 | curData = *cur_data_pos; |
---|
4879 | |
---|
4880 | pred2D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim0_offset - 1]; |
---|
4881 | diff = curData - pred2D; |
---|
4882 | itvNum = fabs(diff)/realPrecision + 1; |
---|
4883 | if (itvNum < intvCapacity_sz){ |
---|
4884 | if (diff < 0) itvNum = -itvNum; |
---|
4885 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
4886 | *cur_pb_pos = pred2D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
4887 | //ganrantee comporession error against the case of machine-epsilon |
---|
4888 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
4889 | type[index] = 0; |
---|
4890 | *cur_pb_pos = curData; |
---|
4891 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4892 | } |
---|
4893 | } |
---|
4894 | else{ |
---|
4895 | type[index] = 0; |
---|
4896 | *cur_pb_pos = curData; |
---|
4897 | unpredictable_data[unpredictable_count ++] = curData; |
---|
4898 | } |
---|
4899 | next_pb_pos[jj] = *cur_pb_pos; |
---|
4900 | index ++; |
---|
4901 | cur_pb_pos ++; |
---|
4902 | cur_data_pos ++; |
---|
4903 | } |
---|
4904 | } |
---|
4905 | total_unpred += unpredictable_count; |
---|
4906 | unpredictable_data += unpredictable_count; |
---|
4907 | // change indicator |
---|
4908 | indicator_pos[j] = 1; |
---|
4909 | }// end SZ |
---|
4910 | reg_params_pos ++; |
---|
4911 | data_pos += current_blockcount_y; |
---|
4912 | pb_pos += current_blockcount_y; |
---|
4913 | next_pb_pos += current_blockcount_y; |
---|
4914 | type += current_blockcount_x * current_blockcount_y; |
---|
4915 | }// end j |
---|
4916 | indicator_pos += num_y; |
---|
4917 | float * tmp; |
---|
4918 | tmp = cur_pb_buf; |
---|
4919 | cur_pb_buf = next_pb_buf; |
---|
4920 | next_pb_buf = tmp; |
---|
4921 | }// end i |
---|
4922 | } |
---|
4923 | free(prediction_buffer_1); |
---|
4924 | free(prediction_buffer_2); |
---|
4925 | |
---|
4926 | int stateNum = 2*quantization_intervals; |
---|
4927 | HuffmanTree* huffmanTree = createHuffmanTree(stateNum); |
---|
4928 | |
---|
4929 | size_t nodeCount = 0; |
---|
4930 | size_t i = 0; |
---|
4931 | init(huffmanTree, result_type, num_elements); |
---|
4932 | for (i = 0; i < stateNum; i++) |
---|
4933 | if (huffmanTree->code[i]) nodeCount++; |
---|
4934 | nodeCount = nodeCount*2-1; |
---|
4935 | |
---|
4936 | unsigned char *treeBytes; |
---|
4937 | unsigned int treeByteSize = convert_HuffTree_to_bytes_anyStates(huffmanTree, nodeCount, &treeBytes); |
---|
4938 | |
---|
4939 | unsigned int meta_data_offset = 3 + 1 + MetaDataByteLength; |
---|
4940 | // total size metadata # elements real precision intervals nodeCount huffman block index unpredicatable count mean unpred size elements |
---|
4941 | unsigned char * result = (unsigned char *) calloc(meta_data_offset + exe_params->SZ_SIZE_TYPE + sizeof(double) + sizeof(int) + sizeof(int) + treeByteSize + num_blocks * sizeof(unsigned short) + num_blocks * sizeof(unsigned short) + num_blocks * sizeof(float) + total_unpred * sizeof(float) + num_elements * sizeof(int), 1); |
---|
4942 | unsigned char * result_pos = result; |
---|
4943 | initRandomAccessBytes(result_pos); |
---|
4944 | result_pos += meta_data_offset; |
---|
4945 | |
---|
4946 | sizeToBytes(result_pos, num_elements); |
---|
4947 | result_pos += exe_params->SZ_SIZE_TYPE; |
---|
4948 | |
---|
4949 | intToBytes_bigEndian(result_pos, block_size); |
---|
4950 | result_pos += sizeof(int); |
---|
4951 | doubleToBytes(result_pos, realPrecision); |
---|
4952 | result_pos += sizeof(double); |
---|
4953 | intToBytes_bigEndian(result_pos, quantization_intervals); |
---|
4954 | result_pos += sizeof(int); |
---|
4955 | intToBytes_bigEndian(result_pos, treeByteSize); |
---|
4956 | result_pos += sizeof(int); |
---|
4957 | intToBytes_bigEndian(result_pos, nodeCount); |
---|
4958 | result_pos += sizeof(int); |
---|
4959 | memcpy(result_pos, treeBytes, treeByteSize); |
---|
4960 | result_pos += treeByteSize; |
---|
4961 | free(treeBytes); |
---|
4962 | |
---|
4963 | memcpy(result_pos, &use_mean, sizeof(unsigned char)); |
---|
4964 | result_pos += sizeof(unsigned char); |
---|
4965 | memcpy(result_pos, &mean, sizeof(float)); |
---|
4966 | result_pos += sizeof(float); |
---|
4967 | |
---|
4968 | size_t indicator_size = convertIntArray2ByteArray_fast_1b_to_result(indicator, num_blocks, result_pos); |
---|
4969 | result_pos += indicator_size; |
---|
4970 | |
---|
4971 | //convert the lead/mid/resi to byte stream |
---|
4972 | if(reg_count>0){ |
---|
4973 | for(int e=0; e<3; e++){ |
---|
4974 | int stateNum = 2*coeff_intvCapacity_sz; |
---|
4975 | HuffmanTree* huffmanTree = createHuffmanTree(stateNum); |
---|
4976 | size_t nodeCount = 0; |
---|
4977 | init(huffmanTree, coeff_type[e], reg_count); |
---|
4978 | size_t i = 0; |
---|
4979 | for (i = 0; i < huffmanTree->stateNum; i++) |
---|
4980 | if (huffmanTree->code[i]) nodeCount++; |
---|
4981 | nodeCount = nodeCount*2-1; |
---|
4982 | unsigned char *treeBytes; |
---|
4983 | unsigned int treeByteSize = convert_HuffTree_to_bytes_anyStates(huffmanTree, nodeCount, &treeBytes); |
---|
4984 | doubleToBytes(result_pos, precision[e]); |
---|
4985 | result_pos += sizeof(double); |
---|
4986 | intToBytes_bigEndian(result_pos, coeff_intvRadius); |
---|
4987 | result_pos += sizeof(int); |
---|
4988 | intToBytes_bigEndian(result_pos, treeByteSize); |
---|
4989 | result_pos += sizeof(int); |
---|
4990 | intToBytes_bigEndian(result_pos, nodeCount); |
---|
4991 | result_pos += sizeof(int); |
---|
4992 | memcpy(result_pos, treeBytes, treeByteSize); |
---|
4993 | result_pos += treeByteSize; |
---|
4994 | free(treeBytes); |
---|
4995 | size_t typeArray_size = 0; |
---|
4996 | encode(huffmanTree, coeff_type[e], reg_count, result_pos + sizeof(size_t), &typeArray_size); |
---|
4997 | sizeToBytes(result_pos, typeArray_size); |
---|
4998 | result_pos += sizeof(size_t) + typeArray_size; |
---|
4999 | intToBytes_bigEndian(result_pos, coeff_unpredictable_count[e]); |
---|
5000 | result_pos += sizeof(int); |
---|
5001 | memcpy(result_pos, coeff_unpred_data[e], coeff_unpredictable_count[e]*sizeof(float)); |
---|
5002 | result_pos += coeff_unpredictable_count[e]*sizeof(float); |
---|
5003 | SZ_ReleaseHuffman(huffmanTree); |
---|
5004 | } |
---|
5005 | } |
---|
5006 | free(coeff_result_type); |
---|
5007 | free(coeff_unpredictable_data); |
---|
5008 | |
---|
5009 | //record the number of unpredictable data and also store them |
---|
5010 | memcpy(result_pos, &total_unpred, sizeof(size_t)); |
---|
5011 | result_pos += sizeof(size_t); |
---|
5012 | memcpy(result_pos, result_unpredictable_data, total_unpred * sizeof(float)); |
---|
5013 | result_pos += total_unpred * sizeof(float); |
---|
5014 | size_t typeArray_size = 0; |
---|
5015 | encode(huffmanTree, result_type, num_elements, result_pos, &typeArray_size); |
---|
5016 | result_pos += typeArray_size; |
---|
5017 | |
---|
5018 | size_t totalEncodeSize = result_pos - result; |
---|
5019 | free(indicator); |
---|
5020 | free(result_unpredictable_data); |
---|
5021 | free(result_type); |
---|
5022 | free(reg_params); |
---|
5023 | |
---|
5024 | SZ_ReleaseHuffman(huffmanTree); |
---|
5025 | *comp_size = totalEncodeSize; |
---|
5026 | |
---|
5027 | return result; |
---|
5028 | } |
---|
5029 | |
---|
5030 | unsigned int optimize_intervals_float_3D_with_freq_and_dense_pos(float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, float * dense_pos, float * max_freq, float * mean_freq) |
---|
5031 | { |
---|
5032 | float mean = 0.0; |
---|
5033 | size_t len = r1 * r2 * r3; |
---|
5034 | size_t mean_distance = (int) (sqrt(len)); |
---|
5035 | float * data_pos = oriData; |
---|
5036 | size_t offset_count = 0; |
---|
5037 | size_t offset_count_2 = 0; |
---|
5038 | size_t mean_count = 0; |
---|
5039 | while(data_pos - oriData < len){ |
---|
5040 | mean += *data_pos; |
---|
5041 | mean_count ++; |
---|
5042 | data_pos += mean_distance; |
---|
5043 | offset_count += mean_distance; |
---|
5044 | offset_count_2 += mean_distance; |
---|
5045 | if(offset_count >= r3){ |
---|
5046 | offset_count = 0; |
---|
5047 | data_pos -= 1; |
---|
5048 | } |
---|
5049 | if(offset_count_2 >= r2 * r3){ |
---|
5050 | offset_count_2 = 0; |
---|
5051 | data_pos -= 1; |
---|
5052 | } |
---|
5053 | } |
---|
5054 | if(mean_count > 0) mean /= mean_count; |
---|
5055 | size_t range = 8192; |
---|
5056 | size_t radius = 4096; |
---|
5057 | size_t * freq_intervals = (size_t *) malloc(range*sizeof(size_t)); |
---|
5058 | memset(freq_intervals, 0, range*sizeof(size_t)); |
---|
5059 | |
---|
5060 | unsigned int maxRangeRadius = confparams_cpr->maxRangeRadius; |
---|
5061 | int sampleDistance = confparams_cpr->sampleDistance; |
---|
5062 | float predThreshold = confparams_cpr->predThreshold; |
---|
5063 | |
---|
5064 | size_t i; |
---|
5065 | size_t radiusIndex; |
---|
5066 | size_t r23=r2*r3; |
---|
5067 | float pred_value = 0, pred_err; |
---|
5068 | size_t *intervals = (size_t*)malloc(maxRangeRadius*sizeof(size_t)); |
---|
5069 | memset(intervals, 0, maxRangeRadius*sizeof(size_t)); |
---|
5070 | |
---|
5071 | float mean_diff; |
---|
5072 | ptrdiff_t freq_index; |
---|
5073 | size_t freq_count = 0; |
---|
5074 | size_t sample_count = 0; |
---|
5075 | |
---|
5076 | offset_count = confparams_cpr->sampleDistance - 2; // count r3 offset |
---|
5077 | data_pos = oriData + r23 + r3 + offset_count; |
---|
5078 | size_t n1_count = 1, n2_count = 1; // count i,j sum |
---|
5079 | |
---|
5080 | while(data_pos - oriData < len){ |
---|
5081 | |
---|
5082 | pred_value = data_pos[-1] + data_pos[-r3] + data_pos[-r23] - data_pos[-1-r23] - data_pos[-r3-1] - data_pos[-r3-r23] + data_pos[-r3-r23-1]; |
---|
5083 | pred_err = fabs(pred_value - *data_pos); |
---|
5084 | if(pred_err < realPrecision) freq_count ++; |
---|
5085 | radiusIndex = (pred_err/realPrecision+1)/2; |
---|
5086 | if(radiusIndex>=maxRangeRadius) |
---|
5087 | { |
---|
5088 | radiusIndex = maxRangeRadius - 1; |
---|
5089 | } |
---|
5090 | intervals[radiusIndex]++; |
---|
5091 | |
---|
5092 | mean_diff = *data_pos - mean; |
---|
5093 | if(mean_diff > 0) freq_index = (ptrdiff_t)(mean_diff/realPrecision) + radius; |
---|
5094 | else freq_index = (ptrdiff_t)(mean_diff/realPrecision) - 1 + radius; |
---|
5095 | if(freq_index <= 0){ |
---|
5096 | freq_intervals[0] ++; |
---|
5097 | } |
---|
5098 | else if(freq_index >= range){ |
---|
5099 | freq_intervals[range - 1] ++; |
---|
5100 | } |
---|
5101 | else{ |
---|
5102 | freq_intervals[freq_index] ++; |
---|
5103 | } |
---|
5104 | offset_count += sampleDistance; |
---|
5105 | if(offset_count >= r3){ |
---|
5106 | n2_count ++; |
---|
5107 | if(n2_count == r2){ |
---|
5108 | n1_count ++; |
---|
5109 | n2_count = 1; |
---|
5110 | data_pos += r3; |
---|
5111 | } |
---|
5112 | offset_count_2 = (n1_count + n2_count) % sampleDistance; |
---|
5113 | data_pos += (r3 + sampleDistance - offset_count) + (sampleDistance - offset_count_2); |
---|
5114 | offset_count = (sampleDistance - offset_count_2); |
---|
5115 | if(offset_count == 0) offset_count ++; |
---|
5116 | } |
---|
5117 | else data_pos += sampleDistance; |
---|
5118 | sample_count ++; |
---|
5119 | } |
---|
5120 | *max_freq = freq_count * 1.0/ sample_count; |
---|
5121 | |
---|
5122 | //compute the appropriate number |
---|
5123 | size_t targetCount = sample_count*predThreshold; |
---|
5124 | size_t sum = 0; |
---|
5125 | for(i=0;i<maxRangeRadius;i++) |
---|
5126 | { |
---|
5127 | sum += intervals[i]; |
---|
5128 | if(sum>targetCount) |
---|
5129 | break; |
---|
5130 | } |
---|
5131 | if(i>=maxRangeRadius) |
---|
5132 | i = maxRangeRadius-1; |
---|
5133 | unsigned int accIntervals = 2*(i+1); |
---|
5134 | unsigned int powerOf2 = roundUpToPowerOf2(accIntervals); |
---|
5135 | |
---|
5136 | if(powerOf2<32) |
---|
5137 | powerOf2 = 32; |
---|
5138 | // collect frequency |
---|
5139 | size_t max_sum = 0; |
---|
5140 | size_t max_index = 0; |
---|
5141 | size_t tmp_sum; |
---|
5142 | size_t * freq_pos = freq_intervals + 1; |
---|
5143 | for(size_t i=1; i<range-2; i++){ |
---|
5144 | tmp_sum = freq_pos[0] + freq_pos[1]; |
---|
5145 | if(tmp_sum > max_sum){ |
---|
5146 | max_sum = tmp_sum; |
---|
5147 | max_index = i; |
---|
5148 | } |
---|
5149 | freq_pos ++; |
---|
5150 | } |
---|
5151 | *dense_pos = mean + realPrecision * (ptrdiff_t)(max_index + 1 - radius); |
---|
5152 | *mean_freq = max_sum * 1.0 / sample_count; |
---|
5153 | |
---|
5154 | free(freq_intervals); |
---|
5155 | free(intervals); |
---|
5156 | return powerOf2; |
---|
5157 | } |
---|
5158 | |
---|
5159 | |
---|
5160 | // 3D: modified for higher performance |
---|
5161 | unsigned char * SZ_compress_float_3D_MDQ_nonblocked_with_blocked_regression(float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, size_t * comp_size){ |
---|
5162 | |
---|
5163 | #ifdef HAVE_TIMECMPR |
---|
5164 | float* decData = NULL; |
---|
5165 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5166 | decData = (float*)(multisteps->hist_data); |
---|
5167 | #endif |
---|
5168 | |
---|
5169 | unsigned int quantization_intervals; |
---|
5170 | float sz_sample_correct_freq = -1;//0.5; //-1 |
---|
5171 | float dense_pos; |
---|
5172 | float mean_flush_freq; |
---|
5173 | unsigned char use_mean = 0; |
---|
5174 | |
---|
5175 | // calculate block dims |
---|
5176 | size_t num_x, num_y, num_z; |
---|
5177 | size_t block_size = 6; |
---|
5178 | SZ_COMPUTE_3D_NUMBER_OF_BLOCKS(r1, num_x, block_size); |
---|
5179 | SZ_COMPUTE_3D_NUMBER_OF_BLOCKS(r2, num_y, block_size); |
---|
5180 | SZ_COMPUTE_3D_NUMBER_OF_BLOCKS(r3, num_z, block_size); |
---|
5181 | |
---|
5182 | size_t split_index_x, split_index_y, split_index_z; |
---|
5183 | size_t early_blockcount_x, early_blockcount_y, early_blockcount_z; |
---|
5184 | size_t late_blockcount_x, late_blockcount_y, late_blockcount_z; |
---|
5185 | SZ_COMPUTE_BLOCKCOUNT(r1, num_x, split_index_x, early_blockcount_x, late_blockcount_x); |
---|
5186 | SZ_COMPUTE_BLOCKCOUNT(r2, num_y, split_index_y, early_blockcount_y, late_blockcount_y); |
---|
5187 | SZ_COMPUTE_BLOCKCOUNT(r3, num_z, split_index_z, early_blockcount_z, late_blockcount_z); |
---|
5188 | |
---|
5189 | size_t max_num_block_elements = early_blockcount_x * early_blockcount_y * early_blockcount_z; |
---|
5190 | size_t num_blocks = num_x * num_y * num_z; |
---|
5191 | size_t num_elements = r1 * r2 * r3; |
---|
5192 | |
---|
5193 | size_t dim0_offset = r2 * r3; |
---|
5194 | size_t dim1_offset = r3; |
---|
5195 | |
---|
5196 | int * result_type = (int *) malloc(num_elements * sizeof(int)); |
---|
5197 | size_t unpred_data_max_size = max_num_block_elements; |
---|
5198 | float * result_unpredictable_data = (float *) malloc(unpred_data_max_size * sizeof(float) * num_blocks); |
---|
5199 | size_t total_unpred = 0; |
---|
5200 | size_t unpredictable_count; |
---|
5201 | size_t max_unpred_count = 0; |
---|
5202 | float * data_pos = oriData; |
---|
5203 | int * type = result_type; |
---|
5204 | size_t type_offset; |
---|
5205 | size_t offset_x, offset_y, offset_z; |
---|
5206 | size_t current_blockcount_x, current_blockcount_y, current_blockcount_z; |
---|
5207 | |
---|
5208 | float * reg_params = (float *) malloc(num_blocks * 4 * sizeof(float)); |
---|
5209 | float * reg_params_pos = reg_params; |
---|
5210 | // move regression part out |
---|
5211 | size_t params_offset_b = num_blocks; |
---|
5212 | size_t params_offset_c = 2*num_blocks; |
---|
5213 | size_t params_offset_d = 3*num_blocks; |
---|
5214 | for(size_t i=0; i<num_x; i++){ |
---|
5215 | for(size_t j=0; j<num_y; j++){ |
---|
5216 | for(size_t k=0; k<num_z; k++){ |
---|
5217 | current_blockcount_x = (i < split_index_x) ? early_blockcount_x : late_blockcount_x; |
---|
5218 | current_blockcount_y = (j < split_index_y) ? early_blockcount_y : late_blockcount_y; |
---|
5219 | current_blockcount_z = (k < split_index_z) ? early_blockcount_z : late_blockcount_z; |
---|
5220 | offset_x = (i < split_index_x) ? i * early_blockcount_x : i * late_blockcount_x + split_index_x; |
---|
5221 | offset_y = (j < split_index_y) ? j * early_blockcount_y : j * late_blockcount_y + split_index_y; |
---|
5222 | offset_z = (k < split_index_z) ? k * early_blockcount_z : k * late_blockcount_z + split_index_z; |
---|
5223 | |
---|
5224 | data_pos = oriData + offset_x * dim0_offset + offset_y * dim1_offset + offset_z; |
---|
5225 | /*Calculate regression coefficients*/ |
---|
5226 | { |
---|
5227 | float * cur_data_pos = data_pos; |
---|
5228 | float fx = 0.0; |
---|
5229 | float fy = 0.0; |
---|
5230 | float fz = 0.0; |
---|
5231 | float f = 0; |
---|
5232 | float sum_x, sum_y; |
---|
5233 | float curData; |
---|
5234 | for(size_t i=0; i<current_blockcount_x; i++){ |
---|
5235 | sum_x = 0; |
---|
5236 | for(size_t j=0; j<current_blockcount_y; j++){ |
---|
5237 | sum_y = 0; |
---|
5238 | for(size_t k=0; k<current_blockcount_z; k++){ |
---|
5239 | curData = *cur_data_pos; |
---|
5240 | // f += curData; |
---|
5241 | // fx += curData * i; |
---|
5242 | // fy += curData * j; |
---|
5243 | // fz += curData * k; |
---|
5244 | sum_y += curData; |
---|
5245 | fz += curData * k; |
---|
5246 | cur_data_pos ++; |
---|
5247 | } |
---|
5248 | fy += sum_y * j; |
---|
5249 | sum_x += sum_y; |
---|
5250 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5251 | } |
---|
5252 | fx += sum_x * i; |
---|
5253 | f += sum_x; |
---|
5254 | cur_data_pos += dim0_offset - current_blockcount_y * dim1_offset; |
---|
5255 | } |
---|
5256 | float coeff = 1.0 / (current_blockcount_x * current_blockcount_y * current_blockcount_z); |
---|
5257 | reg_params_pos[0] = (2 * fx / (current_blockcount_x - 1) - f) * 6 * coeff / (current_blockcount_x + 1); |
---|
5258 | reg_params_pos[params_offset_b] = (2 * fy / (current_blockcount_y - 1) - f) * 6 * coeff / (current_blockcount_y + 1); |
---|
5259 | reg_params_pos[params_offset_c] = (2 * fz / (current_blockcount_z - 1) - f) * 6 * coeff / (current_blockcount_z + 1); |
---|
5260 | reg_params_pos[params_offset_d] = f * coeff - ((current_blockcount_x - 1) * reg_params_pos[0] / 2 + (current_blockcount_y - 1) * reg_params_pos[params_offset_b] / 2 + (current_blockcount_z - 1) * reg_params_pos[params_offset_c] / 2); |
---|
5261 | } |
---|
5262 | reg_params_pos ++; |
---|
5263 | } |
---|
5264 | } |
---|
5265 | } |
---|
5266 | |
---|
5267 | //Compress coefficient arrays |
---|
5268 | double precision_a, precision_b, precision_c, precision_d; |
---|
5269 | float rel_param_err = 0.025; |
---|
5270 | precision_a = rel_param_err * realPrecision / late_blockcount_x; |
---|
5271 | precision_b = rel_param_err * realPrecision / late_blockcount_y; |
---|
5272 | precision_c = rel_param_err * realPrecision / late_blockcount_z; |
---|
5273 | precision_d = rel_param_err * realPrecision; |
---|
5274 | |
---|
5275 | if(exe_params->optQuantMode==1) |
---|
5276 | { |
---|
5277 | quantization_intervals = optimize_intervals_float_3D_with_freq_and_dense_pos(oriData, r1, r2, r3, realPrecision, &dense_pos, &sz_sample_correct_freq, &mean_flush_freq); |
---|
5278 | if(mean_flush_freq > 0.5 || mean_flush_freq > sz_sample_correct_freq) use_mean = 1; |
---|
5279 | updateQuantizationInfo(quantization_intervals); |
---|
5280 | } |
---|
5281 | else{ |
---|
5282 | quantization_intervals = exe_params->intvCapacity; |
---|
5283 | } |
---|
5284 | |
---|
5285 | float mean = 0; |
---|
5286 | if(use_mean){ |
---|
5287 | // compute mean |
---|
5288 | double sum = 0.0; |
---|
5289 | size_t mean_count = 0; |
---|
5290 | for(size_t i=0; i<num_elements; i++){ |
---|
5291 | if(fabs(oriData[i] - dense_pos) < realPrecision){ |
---|
5292 | sum += oriData[i]; |
---|
5293 | mean_count ++; |
---|
5294 | } |
---|
5295 | } |
---|
5296 | if(mean_count > 0) mean = sum / mean_count; |
---|
5297 | } |
---|
5298 | |
---|
5299 | double tmp_realPrecision = realPrecision; |
---|
5300 | |
---|
5301 | // use two prediction buffers for higher performance |
---|
5302 | float * unpredictable_data = result_unpredictable_data; |
---|
5303 | unsigned char * indicator = (unsigned char *) malloc(num_blocks * sizeof(unsigned char)); |
---|
5304 | memset(indicator, 0, num_blocks * sizeof(unsigned char)); |
---|
5305 | size_t reg_count = 0; |
---|
5306 | size_t strip_dim_0 = early_blockcount_x + 1; |
---|
5307 | size_t strip_dim_1 = r2 + 1; |
---|
5308 | size_t strip_dim_2 = r3 + 1; |
---|
5309 | size_t strip_dim0_offset = strip_dim_1 * strip_dim_2; |
---|
5310 | size_t strip_dim1_offset = strip_dim_2; |
---|
5311 | unsigned char * indicator_pos = indicator; |
---|
5312 | |
---|
5313 | size_t prediction_buffer_size = strip_dim_0 * strip_dim0_offset * sizeof(float); |
---|
5314 | float * prediction_buffer_1 = (float *) malloc(prediction_buffer_size); |
---|
5315 | memset(prediction_buffer_1, 0, prediction_buffer_size); |
---|
5316 | float * prediction_buffer_2 = (float *) malloc(prediction_buffer_size); |
---|
5317 | memset(prediction_buffer_2, 0, prediction_buffer_size); |
---|
5318 | float * cur_pb_buf = prediction_buffer_1; |
---|
5319 | float * next_pb_buf = prediction_buffer_2; |
---|
5320 | float * cur_pb_buf_pos; |
---|
5321 | float * next_pb_buf_pos; |
---|
5322 | int intvCapacity = exe_params->intvCapacity; |
---|
5323 | int intvRadius = exe_params->intvRadius; |
---|
5324 | int use_reg = 0; |
---|
5325 | float noise = realPrecision * 1.22; |
---|
5326 | |
---|
5327 | reg_params_pos = reg_params; |
---|
5328 | // compress the regression coefficients on the fly |
---|
5329 | float last_coeffcients[4] = {0.0}; |
---|
5330 | int coeff_intvCapacity_sz = 65536; |
---|
5331 | int coeff_intvRadius = coeff_intvCapacity_sz / 2; |
---|
5332 | int * coeff_type[4]; |
---|
5333 | int * coeff_result_type = (int *) malloc(num_blocks*4*sizeof(int)); |
---|
5334 | float * coeff_unpred_data[4]; |
---|
5335 | float * coeff_unpredictable_data = (float *) malloc(num_blocks*4*sizeof(float)); |
---|
5336 | double precision[4]; |
---|
5337 | precision[0] = precision_a, precision[1] = precision_b, precision[2] = precision_c, precision[3] = precision_d; |
---|
5338 | for(int i=0; i<4; i++){ |
---|
5339 | coeff_type[i] = coeff_result_type + i * num_blocks; |
---|
5340 | coeff_unpred_data[i] = coeff_unpredictable_data + i * num_blocks; |
---|
5341 | } |
---|
5342 | int coeff_index = 0; |
---|
5343 | unsigned int coeff_unpredictable_count[4] = {0}; |
---|
5344 | |
---|
5345 | if(use_mean){ |
---|
5346 | int intvCapacity_sz = intvCapacity - 2; |
---|
5347 | for(size_t i=0; i<num_x; i++){ |
---|
5348 | current_blockcount_x = (i < split_index_x) ? early_blockcount_x : late_blockcount_x; |
---|
5349 | offset_x = (i < split_index_x) ? i * early_blockcount_x : i * late_blockcount_x + split_index_x; |
---|
5350 | for(size_t j=0; j<num_y; j++){ |
---|
5351 | offset_y = (j < split_index_y) ? j * early_blockcount_y : j * late_blockcount_y + split_index_y; |
---|
5352 | current_blockcount_y = (j < split_index_y) ? early_blockcount_y : late_blockcount_y; |
---|
5353 | data_pos = oriData + offset_x * dim0_offset + offset_y * dim1_offset; |
---|
5354 | type_offset = offset_x * dim0_offset + offset_y * current_blockcount_x * dim1_offset; |
---|
5355 | type = result_type + type_offset; |
---|
5356 | |
---|
5357 | // prediction buffer is (current_block_count_x + 1) * (current_block_count_y + 1) * (current_block_count_z + 1) |
---|
5358 | cur_pb_buf_pos = cur_pb_buf + offset_y * strip_dim1_offset + strip_dim0_offset + strip_dim1_offset + 1; |
---|
5359 | next_pb_buf_pos = next_pb_buf + offset_y * strip_dim1_offset + strip_dim1_offset + 1; |
---|
5360 | |
---|
5361 | size_t current_blockcount_z; |
---|
5362 | float * pb_pos = cur_pb_buf_pos; |
---|
5363 | float * next_pb_pos = next_pb_buf_pos; |
---|
5364 | size_t strip_unpredictable_count = 0; |
---|
5365 | for(size_t k=0; k<num_z; k++){ |
---|
5366 | current_blockcount_z = (k < split_index_z) ? early_blockcount_z : late_blockcount_z; |
---|
5367 | #ifdef HAVE_TIMECMPR |
---|
5368 | size_t offset_z = 0; |
---|
5369 | offset_z = (k < split_index_z) ? k * early_blockcount_z : k * late_blockcount_z + split_index_z; |
---|
5370 | size_t block_offset = offset_x * dim0_offset + offset_y * dim1_offset + offset_z; |
---|
5371 | #endif |
---|
5372 | /*sampling and decide which predictor*/ |
---|
5373 | { |
---|
5374 | // sample point [1, 1, 1] [1, 1, 4] [1, 4, 1] [1, 4, 4] [4, 1, 1] [4, 1, 4] [4, 4, 1] [4, 4, 4] |
---|
5375 | float * cur_data_pos; |
---|
5376 | float curData; |
---|
5377 | float pred_reg, pred_sz; |
---|
5378 | float err_sz = 0.0, err_reg = 0.0; |
---|
5379 | int bmi = 0; |
---|
5380 | if(i>0 && j>0 && k>0){ |
---|
5381 | for(int i=0; i<block_size; i++){ |
---|
5382 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + i; |
---|
5383 | curData = *cur_data_pos; |
---|
5384 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5385 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5386 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5387 | err_reg += fabs(pred_reg - curData); |
---|
5388 | |
---|
5389 | bmi = block_size - i; |
---|
5390 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + bmi; |
---|
5391 | curData = *cur_data_pos; |
---|
5392 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5393 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5394 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5395 | err_reg += fabs(pred_reg - curData); |
---|
5396 | |
---|
5397 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + i; |
---|
5398 | curData = *cur_data_pos; |
---|
5399 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5400 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5401 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5402 | err_reg += fabs(pred_reg - curData); |
---|
5403 | |
---|
5404 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + bmi; |
---|
5405 | curData = *cur_data_pos; |
---|
5406 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5407 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5408 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5409 | err_reg += fabs(pred_reg - curData); |
---|
5410 | } |
---|
5411 | } |
---|
5412 | else{ |
---|
5413 | for(int i=1; i<block_size; i++){ |
---|
5414 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + i; |
---|
5415 | curData = *cur_data_pos; |
---|
5416 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5417 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5418 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5419 | err_reg += fabs(pred_reg - curData); |
---|
5420 | |
---|
5421 | bmi = block_size - i; |
---|
5422 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + bmi; |
---|
5423 | curData = *cur_data_pos; |
---|
5424 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5425 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5426 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5427 | err_reg += fabs(pred_reg - curData); |
---|
5428 | |
---|
5429 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + i; |
---|
5430 | curData = *cur_data_pos; |
---|
5431 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5432 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5433 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5434 | err_reg += fabs(pred_reg - curData); |
---|
5435 | |
---|
5436 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + bmi; |
---|
5437 | curData = *cur_data_pos; |
---|
5438 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5439 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5440 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
5441 | err_reg += fabs(pred_reg - curData); |
---|
5442 | |
---|
5443 | } |
---|
5444 | } |
---|
5445 | use_reg = (err_reg < err_sz); |
---|
5446 | } |
---|
5447 | if(use_reg){ |
---|
5448 | { |
---|
5449 | /*predict coefficients in current block via previous reg_block*/ |
---|
5450 | float cur_coeff; |
---|
5451 | double diff, itvNum; |
---|
5452 | for(int e=0; e<4; e++){ |
---|
5453 | cur_coeff = reg_params_pos[e*num_blocks]; |
---|
5454 | diff = cur_coeff - last_coeffcients[e]; |
---|
5455 | itvNum = fabs(diff)/precision[e] + 1; |
---|
5456 | if (itvNum < coeff_intvCapacity_sz){ |
---|
5457 | if (diff < 0) itvNum = -itvNum; |
---|
5458 | coeff_type[e][coeff_index] = (int) (itvNum/2) + coeff_intvRadius; |
---|
5459 | last_coeffcients[e] = last_coeffcients[e] + 2 * (coeff_type[e][coeff_index] - coeff_intvRadius) * precision[e]; |
---|
5460 | //ganrantee comporession error against the case of machine-epsilon |
---|
5461 | if(fabs(cur_coeff - last_coeffcients[e])>precision[e]){ |
---|
5462 | coeff_type[e][coeff_index] = 0; |
---|
5463 | last_coeffcients[e] = cur_coeff; |
---|
5464 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
5465 | } |
---|
5466 | } |
---|
5467 | else{ |
---|
5468 | coeff_type[e][coeff_index] = 0; |
---|
5469 | last_coeffcients[e] = cur_coeff; |
---|
5470 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
5471 | } |
---|
5472 | } |
---|
5473 | coeff_index ++; |
---|
5474 | } |
---|
5475 | float curData; |
---|
5476 | float pred; |
---|
5477 | double itvNum; |
---|
5478 | double diff; |
---|
5479 | size_t index = 0; |
---|
5480 | size_t block_unpredictable_count = 0; |
---|
5481 | float * cur_data_pos = data_pos; |
---|
5482 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
5483 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5484 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5485 | curData = *cur_data_pos; |
---|
5486 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2] * kk + last_coeffcients[3]; |
---|
5487 | diff = curData - pred; |
---|
5488 | itvNum = fabs(diff)/tmp_realPrecision + 1; |
---|
5489 | if (itvNum < intvCapacity){ |
---|
5490 | if (diff < 0) itvNum = -itvNum; |
---|
5491 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5492 | pred = pred + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5493 | //ganrantee comporession error against the case of machine-epsilon |
---|
5494 | if(fabs(curData - pred)>tmp_realPrecision){ |
---|
5495 | type[index] = 0; |
---|
5496 | pred = curData; |
---|
5497 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5498 | } |
---|
5499 | } |
---|
5500 | else{ |
---|
5501 | type[index] = 0; |
---|
5502 | pred = curData; |
---|
5503 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5504 | } |
---|
5505 | |
---|
5506 | #ifdef HAVE_TIMECMPR |
---|
5507 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5508 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5509 | decData[block_offset + point_offset] = pred; |
---|
5510 | #endif |
---|
5511 | |
---|
5512 | if((jj == current_blockcount_y - 1) || (kk == current_blockcount_z - 1)){ |
---|
5513 | // assign value to block surfaces |
---|
5514 | pb_pos[ii * strip_dim0_offset + jj * strip_dim1_offset + kk] = pred; |
---|
5515 | } |
---|
5516 | index ++; |
---|
5517 | cur_data_pos ++; |
---|
5518 | } |
---|
5519 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5520 | } |
---|
5521 | cur_data_pos += dim0_offset - current_blockcount_y * dim1_offset; |
---|
5522 | } |
---|
5523 | /*dealing with the last ii (boundary)*/ |
---|
5524 | { |
---|
5525 | // ii == current_blockcount_x - 1 |
---|
5526 | size_t ii = current_blockcount_x - 1; |
---|
5527 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5528 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5529 | curData = *cur_data_pos; |
---|
5530 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2] * kk + last_coeffcients[3]; |
---|
5531 | diff = curData - pred; |
---|
5532 | itvNum = fabs(diff)/tmp_realPrecision + 1; |
---|
5533 | if (itvNum < intvCapacity){ |
---|
5534 | if (diff < 0) itvNum = -itvNum; |
---|
5535 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5536 | pred = pred + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5537 | //ganrantee comporession error against the case of machine-epsilon |
---|
5538 | if(fabs(curData - pred)>tmp_realPrecision){ |
---|
5539 | type[index] = 0; |
---|
5540 | pred = curData; |
---|
5541 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5542 | } |
---|
5543 | } |
---|
5544 | else{ |
---|
5545 | type[index] = 0; |
---|
5546 | pred = curData; |
---|
5547 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5548 | } |
---|
5549 | |
---|
5550 | #ifdef HAVE_TIMECMPR |
---|
5551 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5552 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5553 | decData[block_offset + point_offset] = pred; |
---|
5554 | #endif |
---|
5555 | |
---|
5556 | if((jj == current_blockcount_y - 1) || (kk == current_blockcount_z - 1)){ |
---|
5557 | // assign value to block surfaces |
---|
5558 | pb_pos[ii * strip_dim0_offset + jj * strip_dim1_offset + kk] = pred; |
---|
5559 | } |
---|
5560 | // assign value to next prediction buffer |
---|
5561 | next_pb_pos[jj * strip_dim1_offset + kk] = pred; |
---|
5562 | index ++; |
---|
5563 | cur_data_pos ++; |
---|
5564 | } |
---|
5565 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5566 | } |
---|
5567 | } |
---|
5568 | unpredictable_count = block_unpredictable_count; |
---|
5569 | strip_unpredictable_count += unpredictable_count; |
---|
5570 | unpredictable_data += unpredictable_count; |
---|
5571 | |
---|
5572 | reg_count ++; |
---|
5573 | } |
---|
5574 | else{ |
---|
5575 | // use SZ |
---|
5576 | // SZ predication |
---|
5577 | unpredictable_count = 0; |
---|
5578 | float * cur_pb_pos = pb_pos; |
---|
5579 | float * cur_data_pos = data_pos; |
---|
5580 | float curData; |
---|
5581 | float pred3D; |
---|
5582 | double itvNum, diff; |
---|
5583 | size_t index = 0; |
---|
5584 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
5585 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5586 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5587 | |
---|
5588 | curData = *cur_data_pos; |
---|
5589 | if(fabs(curData - mean) <= realPrecision){ |
---|
5590 | // adjust type[index] to intvRadius for coherence with freq in reg |
---|
5591 | type[index] = intvRadius; |
---|
5592 | *cur_pb_pos = mean; |
---|
5593 | } |
---|
5594 | else |
---|
5595 | { |
---|
5596 | pred3D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim1_offset]+ cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim1_offset - 1] |
---|
5597 | - cur_pb_pos[-strip_dim0_offset - 1] - cur_pb_pos[-strip_dim0_offset - strip_dim1_offset] + cur_pb_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
5598 | diff = curData - pred3D; |
---|
5599 | itvNum = fabs(diff)/realPrecision + 1; |
---|
5600 | if (itvNum < intvCapacity_sz){ |
---|
5601 | if (diff < 0) itvNum = -itvNum; |
---|
5602 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5603 | *cur_pb_pos = pred3D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5604 | if(type[index] <= intvRadius) type[index] -= 1; |
---|
5605 | //ganrantee comporession error against the case of machine-epsilon |
---|
5606 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
5607 | type[index] = 0; |
---|
5608 | *cur_pb_pos = curData; |
---|
5609 | unpredictable_data[unpredictable_count ++] = curData; |
---|
5610 | } |
---|
5611 | } |
---|
5612 | else{ |
---|
5613 | type[index] = 0; |
---|
5614 | *cur_pb_pos = curData; |
---|
5615 | unpredictable_data[unpredictable_count ++] = curData; |
---|
5616 | } |
---|
5617 | } |
---|
5618 | #ifdef HAVE_TIMECMPR |
---|
5619 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5620 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5621 | decData[block_offset + point_offset] = *cur_pb_pos; |
---|
5622 | #endif |
---|
5623 | |
---|
5624 | index ++; |
---|
5625 | cur_pb_pos ++; |
---|
5626 | cur_data_pos ++; |
---|
5627 | } |
---|
5628 | cur_pb_pos += strip_dim1_offset - current_blockcount_z; |
---|
5629 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5630 | } |
---|
5631 | cur_pb_pos += strip_dim0_offset - current_blockcount_y * strip_dim1_offset; |
---|
5632 | cur_data_pos += dim0_offset - current_blockcount_y * dim1_offset; |
---|
5633 | } |
---|
5634 | /*dealing with the last ii (boundary)*/ |
---|
5635 | { |
---|
5636 | // ii == current_blockcount_x - 1 |
---|
5637 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5638 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5639 | |
---|
5640 | curData = *cur_data_pos; |
---|
5641 | if(fabs(curData - mean) <= realPrecision){ |
---|
5642 | // adjust type[index] to intvRadius for coherence with freq in reg |
---|
5643 | type[index] = intvRadius; |
---|
5644 | *cur_pb_pos = mean; |
---|
5645 | } |
---|
5646 | else |
---|
5647 | { |
---|
5648 | pred3D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim1_offset]+ cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim1_offset - 1] |
---|
5649 | - cur_pb_pos[-strip_dim0_offset - 1] - cur_pb_pos[-strip_dim0_offset - strip_dim1_offset] + cur_pb_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
5650 | diff = curData - pred3D; |
---|
5651 | itvNum = fabs(diff)/realPrecision + 1; |
---|
5652 | if (itvNum < intvCapacity_sz){ |
---|
5653 | if (diff < 0) itvNum = -itvNum; |
---|
5654 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5655 | *cur_pb_pos = pred3D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5656 | if(type[index] <= intvRadius) type[index] -= 1; |
---|
5657 | //ganrantee comporession error against the case of machine-epsilon |
---|
5658 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
5659 | type[index] = 0; |
---|
5660 | *cur_pb_pos = curData; |
---|
5661 | unpredictable_data[unpredictable_count ++] = curData; |
---|
5662 | } |
---|
5663 | } |
---|
5664 | else{ |
---|
5665 | type[index] = 0; |
---|
5666 | *cur_pb_pos = curData; |
---|
5667 | unpredictable_data[unpredictable_count ++] = curData; |
---|
5668 | } |
---|
5669 | } |
---|
5670 | #ifdef HAVE_TIMECMPR |
---|
5671 | size_t ii = current_blockcount_x - 1; |
---|
5672 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5673 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5674 | decData[block_offset + point_offset] = *cur_pb_pos; |
---|
5675 | #endif |
---|
5676 | |
---|
5677 | next_pb_pos[jj * strip_dim1_offset + kk] = *cur_pb_pos; |
---|
5678 | index ++; |
---|
5679 | cur_pb_pos ++; |
---|
5680 | cur_data_pos ++; |
---|
5681 | } |
---|
5682 | cur_pb_pos += strip_dim1_offset - current_blockcount_z; |
---|
5683 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5684 | } |
---|
5685 | } |
---|
5686 | strip_unpredictable_count += unpredictable_count; |
---|
5687 | unpredictable_data += unpredictable_count; |
---|
5688 | // change indicator |
---|
5689 | indicator_pos[k] = 1; |
---|
5690 | }// end SZ |
---|
5691 | |
---|
5692 | reg_params_pos ++; |
---|
5693 | data_pos += current_blockcount_z; |
---|
5694 | pb_pos += current_blockcount_z; |
---|
5695 | next_pb_pos += current_blockcount_z; |
---|
5696 | type += current_blockcount_x * current_blockcount_y * current_blockcount_z; |
---|
5697 | |
---|
5698 | } // end k |
---|
5699 | |
---|
5700 | if(strip_unpredictable_count > max_unpred_count){ |
---|
5701 | max_unpred_count = strip_unpredictable_count; |
---|
5702 | } |
---|
5703 | total_unpred += strip_unpredictable_count; |
---|
5704 | indicator_pos += num_z; |
---|
5705 | }// end j |
---|
5706 | float * tmp; |
---|
5707 | tmp = cur_pb_buf; |
---|
5708 | cur_pb_buf = next_pb_buf; |
---|
5709 | next_pb_buf = tmp; |
---|
5710 | }// end i |
---|
5711 | } |
---|
5712 | else{ |
---|
5713 | int intvCapacity_sz = intvCapacity - 2; |
---|
5714 | for(size_t i=0; i<num_x; i++){ |
---|
5715 | current_blockcount_x = (i < split_index_x) ? early_blockcount_x : late_blockcount_x; |
---|
5716 | offset_x = (i < split_index_x) ? i * early_blockcount_x : i * late_blockcount_x + split_index_x; |
---|
5717 | |
---|
5718 | for(size_t j=0; j<num_y; j++){ |
---|
5719 | offset_y = (j < split_index_y) ? j * early_blockcount_y : j * late_blockcount_y + split_index_y; |
---|
5720 | current_blockcount_y = (j < split_index_y) ? early_blockcount_y : late_blockcount_y; |
---|
5721 | data_pos = oriData + offset_x * dim0_offset + offset_y * dim1_offset; |
---|
5722 | // copy bottom plane from plane buffer |
---|
5723 | // memcpy(prediction_buffer, bottom_buffer + offset_y * strip_dim1_offset, (current_blockcount_y + 1) * strip_dim1_offset * sizeof(float)); |
---|
5724 | type_offset = offset_x * dim0_offset + offset_y * current_blockcount_x * dim1_offset; |
---|
5725 | type = result_type + type_offset; |
---|
5726 | |
---|
5727 | // prediction buffer is (current_block_count_x + 1) * (current_block_count_y + 1) * (current_block_count_z + 1) |
---|
5728 | cur_pb_buf_pos = cur_pb_buf + offset_y * strip_dim1_offset + strip_dim0_offset + strip_dim1_offset + 1; |
---|
5729 | next_pb_buf_pos = next_pb_buf + offset_y * strip_dim1_offset + strip_dim1_offset + 1; |
---|
5730 | |
---|
5731 | size_t current_blockcount_z; |
---|
5732 | float * pb_pos = cur_pb_buf_pos; |
---|
5733 | float * next_pb_pos = next_pb_buf_pos; |
---|
5734 | size_t strip_unpredictable_count = 0; |
---|
5735 | for(size_t k=0; k<num_z; k++){ |
---|
5736 | current_blockcount_z = (k < split_index_z) ? early_blockcount_z : late_blockcount_z; |
---|
5737 | #ifdef HAVE_TIMECMPR |
---|
5738 | size_t offset_z = 0; |
---|
5739 | offset_z = (k < split_index_z) ? k * early_blockcount_z : k * late_blockcount_z + split_index_z; |
---|
5740 | size_t block_offset = offset_x * dim0_offset + offset_y * dim1_offset + offset_z; |
---|
5741 | #endif |
---|
5742 | /*sampling*/ |
---|
5743 | { |
---|
5744 | // sample point [1, 1, 1] [1, 1, 4] [1, 4, 1] [1, 4, 4] [4, 1, 1] [4, 1, 4] [4, 4, 1] [4, 4, 4] |
---|
5745 | float * cur_data_pos; |
---|
5746 | float curData; |
---|
5747 | float pred_reg, pred_sz; |
---|
5748 | float err_sz = 0.0, err_reg = 0.0; |
---|
5749 | int bmi; |
---|
5750 | if(i>0 && j>0 && k>0){ |
---|
5751 | for(int i=0; i<block_size; i++){ |
---|
5752 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + i; |
---|
5753 | curData = *cur_data_pos; |
---|
5754 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5755 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5756 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5757 | err_reg += fabs(pred_reg - curData); |
---|
5758 | |
---|
5759 | bmi = block_size - i; |
---|
5760 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + bmi; |
---|
5761 | curData = *cur_data_pos; |
---|
5762 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5763 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5764 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5765 | err_reg += fabs(pred_reg - curData); |
---|
5766 | |
---|
5767 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + i; |
---|
5768 | curData = *cur_data_pos; |
---|
5769 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5770 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5771 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5772 | err_reg += fabs(pred_reg - curData); |
---|
5773 | |
---|
5774 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + bmi; |
---|
5775 | curData = *cur_data_pos; |
---|
5776 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5777 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5778 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5779 | err_reg += fabs(pred_reg - curData); |
---|
5780 | } |
---|
5781 | } |
---|
5782 | else{ |
---|
5783 | for(int i=1; i<block_size; i++){ |
---|
5784 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + i; |
---|
5785 | curData = *cur_data_pos; |
---|
5786 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5787 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5788 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5789 | err_reg += fabs(pred_reg - curData); |
---|
5790 | |
---|
5791 | bmi = block_size - i; |
---|
5792 | cur_data_pos = data_pos + i*dim0_offset + i*dim1_offset + bmi; |
---|
5793 | curData = *cur_data_pos; |
---|
5794 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5795 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5796 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5797 | err_reg += fabs(pred_reg - curData); |
---|
5798 | |
---|
5799 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + i; |
---|
5800 | curData = *cur_data_pos; |
---|
5801 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5802 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
5803 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5804 | err_reg += fabs(pred_reg - curData); |
---|
5805 | |
---|
5806 | cur_data_pos = data_pos + i*dim0_offset + bmi*dim1_offset + bmi; |
---|
5807 | curData = *cur_data_pos; |
---|
5808 | pred_sz = cur_data_pos[-1] + cur_data_pos[-dim1_offset]+ cur_data_pos[-dim0_offset] - cur_data_pos[-dim1_offset - 1] - cur_data_pos[-dim0_offset - 1] - cur_data_pos[-dim0_offset - dim1_offset] + cur_data_pos[-dim0_offset - dim1_offset - 1]; |
---|
5809 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
5810 | err_sz += fabs(pred_sz - curData) + noise; |
---|
5811 | err_reg += fabs(pred_reg - curData); |
---|
5812 | } |
---|
5813 | } |
---|
5814 | use_reg = (err_reg < err_sz); |
---|
5815 | |
---|
5816 | } |
---|
5817 | if(use_reg) |
---|
5818 | { |
---|
5819 | { |
---|
5820 | /*predict coefficients in current block via previous reg_block*/ |
---|
5821 | float cur_coeff; |
---|
5822 | double diff, itvNum; |
---|
5823 | for(int e=0; e<4; e++){ |
---|
5824 | cur_coeff = reg_params_pos[e*num_blocks]; |
---|
5825 | diff = cur_coeff - last_coeffcients[e]; |
---|
5826 | itvNum = fabs(diff)/precision[e] + 1; |
---|
5827 | if (itvNum < coeff_intvCapacity_sz){ |
---|
5828 | if (diff < 0) itvNum = -itvNum; |
---|
5829 | coeff_type[e][coeff_index] = (int) (itvNum/2) + coeff_intvRadius; |
---|
5830 | last_coeffcients[e] = last_coeffcients[e] + 2 * (coeff_type[e][coeff_index] - coeff_intvRadius) * precision[e]; |
---|
5831 | //ganrantee comporession error against the case of machine-epsilon |
---|
5832 | if(fabs(cur_coeff - last_coeffcients[e])>precision[e]){ |
---|
5833 | coeff_type[e][coeff_index] = 0; |
---|
5834 | last_coeffcients[e] = cur_coeff; |
---|
5835 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
5836 | } |
---|
5837 | } |
---|
5838 | else{ |
---|
5839 | coeff_type[e][coeff_index] = 0; |
---|
5840 | last_coeffcients[e] = cur_coeff; |
---|
5841 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
5842 | } |
---|
5843 | } |
---|
5844 | coeff_index ++; |
---|
5845 | } |
---|
5846 | float curData; |
---|
5847 | float pred; |
---|
5848 | double itvNum; |
---|
5849 | double diff; |
---|
5850 | size_t index = 0; |
---|
5851 | size_t block_unpredictable_count = 0; |
---|
5852 | float * cur_data_pos = data_pos; |
---|
5853 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
5854 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5855 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5856 | |
---|
5857 | curData = *cur_data_pos; |
---|
5858 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2] * kk + last_coeffcients[3]; |
---|
5859 | diff = curData - pred; |
---|
5860 | itvNum = fabs(diff)/tmp_realPrecision + 1; |
---|
5861 | if (itvNum < intvCapacity){ |
---|
5862 | if (diff < 0) itvNum = -itvNum; |
---|
5863 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5864 | pred = pred + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5865 | //ganrantee comporession error against the case of machine-epsilon |
---|
5866 | if(fabs(curData - pred)>tmp_realPrecision){ |
---|
5867 | type[index] = 0; |
---|
5868 | pred = curData; |
---|
5869 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5870 | } |
---|
5871 | } |
---|
5872 | else{ |
---|
5873 | type[index] = 0; |
---|
5874 | pred = curData; |
---|
5875 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5876 | } |
---|
5877 | |
---|
5878 | #ifdef HAVE_TIMECMPR |
---|
5879 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5880 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5881 | decData[block_offset + point_offset] = pred; |
---|
5882 | #endif |
---|
5883 | |
---|
5884 | |
---|
5885 | if((jj == current_blockcount_y - 1) || (kk == current_blockcount_z - 1)){ |
---|
5886 | // assign value to block surfaces |
---|
5887 | pb_pos[ii * strip_dim0_offset + jj * strip_dim1_offset + kk] = pred; |
---|
5888 | } |
---|
5889 | index ++; |
---|
5890 | cur_data_pos ++; |
---|
5891 | } |
---|
5892 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5893 | } |
---|
5894 | cur_data_pos += dim0_offset - current_blockcount_y * dim1_offset; |
---|
5895 | } |
---|
5896 | /*dealing with the last ii (boundary)*/ |
---|
5897 | { |
---|
5898 | // ii == current_blockcount_x - 1 |
---|
5899 | size_t ii = current_blockcount_x - 1; |
---|
5900 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5901 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5902 | curData = *cur_data_pos; |
---|
5903 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2] * kk + last_coeffcients[3]; |
---|
5904 | diff = curData - pred; |
---|
5905 | itvNum = fabs(diff)/tmp_realPrecision + 1; |
---|
5906 | if (itvNum < intvCapacity){ |
---|
5907 | if (diff < 0) itvNum = -itvNum; |
---|
5908 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5909 | pred = pred + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5910 | //ganrantee comporession error against the case of machine-epsilon |
---|
5911 | if(fabs(curData - pred)>tmp_realPrecision){ |
---|
5912 | type[index] = 0; |
---|
5913 | pred = curData; |
---|
5914 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5915 | } |
---|
5916 | } |
---|
5917 | else{ |
---|
5918 | type[index] = 0; |
---|
5919 | pred = curData; |
---|
5920 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
5921 | } |
---|
5922 | |
---|
5923 | #ifdef HAVE_TIMECMPR |
---|
5924 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5925 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5926 | decData[block_offset + point_offset] = pred; |
---|
5927 | #endif |
---|
5928 | |
---|
5929 | if((jj == current_blockcount_y - 1) || (kk == current_blockcount_z - 1)){ |
---|
5930 | // assign value to block surfaces |
---|
5931 | pb_pos[ii * strip_dim0_offset + jj * strip_dim1_offset + kk] = pred; |
---|
5932 | } |
---|
5933 | // assign value to next prediction buffer |
---|
5934 | next_pb_pos[jj * strip_dim1_offset + kk] = pred; |
---|
5935 | index ++; |
---|
5936 | cur_data_pos ++; |
---|
5937 | } |
---|
5938 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5939 | } |
---|
5940 | } |
---|
5941 | unpredictable_count = block_unpredictable_count; |
---|
5942 | strip_unpredictable_count += unpredictable_count; |
---|
5943 | unpredictable_data += unpredictable_count; |
---|
5944 | reg_count ++; |
---|
5945 | } |
---|
5946 | else{ |
---|
5947 | // use SZ |
---|
5948 | // SZ predication |
---|
5949 | unpredictable_count = 0; |
---|
5950 | float * cur_pb_pos = pb_pos; |
---|
5951 | float * cur_data_pos = data_pos; |
---|
5952 | float curData; |
---|
5953 | float pred3D; |
---|
5954 | double itvNum, diff; |
---|
5955 | size_t index = 0; |
---|
5956 | for(size_t ii=0; ii<current_blockcount_x - 1; ii++){ |
---|
5957 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
5958 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
5959 | |
---|
5960 | curData = *cur_data_pos; |
---|
5961 | pred3D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim1_offset]+ cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim1_offset - 1] |
---|
5962 | - cur_pb_pos[-strip_dim0_offset - 1] - cur_pb_pos[-strip_dim0_offset - strip_dim1_offset] + cur_pb_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
5963 | diff = curData - pred3D; |
---|
5964 | itvNum = fabs(diff)/realPrecision + 1; |
---|
5965 | if (itvNum < intvCapacity_sz){ |
---|
5966 | if (diff < 0) itvNum = -itvNum; |
---|
5967 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
5968 | *cur_pb_pos = pred3D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
5969 | //ganrantee comporession error against the case of machine-epsilon |
---|
5970 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
5971 | type[index] = 0; |
---|
5972 | *cur_pb_pos = curData; |
---|
5973 | unpredictable_data[unpredictable_count ++] = curData; |
---|
5974 | } |
---|
5975 | } |
---|
5976 | else{ |
---|
5977 | type[index] = 0; |
---|
5978 | *cur_pb_pos = curData; |
---|
5979 | unpredictable_data[unpredictable_count ++] = curData; |
---|
5980 | } |
---|
5981 | |
---|
5982 | #ifdef HAVE_TIMECMPR |
---|
5983 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
5984 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
5985 | decData[block_offset + point_offset] = *cur_pb_pos; |
---|
5986 | #endif |
---|
5987 | index ++; |
---|
5988 | cur_pb_pos ++; |
---|
5989 | cur_data_pos ++; |
---|
5990 | } |
---|
5991 | cur_pb_pos += strip_dim1_offset - current_blockcount_z; |
---|
5992 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
5993 | } |
---|
5994 | cur_pb_pos += strip_dim0_offset - current_blockcount_y * strip_dim1_offset; |
---|
5995 | cur_data_pos += dim0_offset - current_blockcount_y * dim1_offset; |
---|
5996 | } |
---|
5997 | /*dealing with the last ii (boundary)*/ |
---|
5998 | { |
---|
5999 | // ii == current_blockcount_x - 1 |
---|
6000 | for(size_t jj=0; jj<current_blockcount_y; jj++){ |
---|
6001 | for(size_t kk=0; kk<current_blockcount_z; kk++){ |
---|
6002 | |
---|
6003 | curData = *cur_data_pos; |
---|
6004 | pred3D = cur_pb_pos[-1] + cur_pb_pos[-strip_dim1_offset]+ cur_pb_pos[-strip_dim0_offset] - cur_pb_pos[-strip_dim1_offset - 1] |
---|
6005 | - cur_pb_pos[-strip_dim0_offset - 1] - cur_pb_pos[-strip_dim0_offset - strip_dim1_offset] + cur_pb_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6006 | diff = curData - pred3D; |
---|
6007 | itvNum = fabs(diff)/realPrecision + 1; |
---|
6008 | if (itvNum < intvCapacity_sz){ |
---|
6009 | if (diff < 0) itvNum = -itvNum; |
---|
6010 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
6011 | *cur_pb_pos = pred3D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
6012 | //ganrantee comporession error against the case of machine-epsilon |
---|
6013 | if(fabs(curData - *cur_pb_pos)>tmp_realPrecision){ |
---|
6014 | type[index] = 0; |
---|
6015 | *cur_pb_pos = curData; |
---|
6016 | unpredictable_data[unpredictable_count ++] = curData; |
---|
6017 | } |
---|
6018 | } |
---|
6019 | else{ |
---|
6020 | type[index] = 0; |
---|
6021 | *cur_pb_pos = curData; |
---|
6022 | unpredictable_data[unpredictable_count ++] = curData; |
---|
6023 | } |
---|
6024 | |
---|
6025 | #ifdef HAVE_TIMECMPR |
---|
6026 | size_t ii = current_blockcount_x - 1; |
---|
6027 | size_t point_offset = ii*dim0_offset + jj*dim1_offset + kk; |
---|
6028 | if(confparams_cpr->szMode == SZ_TEMPORAL_COMPRESSION) |
---|
6029 | decData[block_offset + point_offset] = *cur_pb_pos; |
---|
6030 | #endif |
---|
6031 | |
---|
6032 | // assign value to next prediction buffer |
---|
6033 | next_pb_pos[jj * strip_dim1_offset + kk] = *cur_pb_pos; |
---|
6034 | index ++; |
---|
6035 | cur_pb_pos ++; |
---|
6036 | cur_data_pos ++; |
---|
6037 | } |
---|
6038 | cur_pb_pos += strip_dim1_offset - current_blockcount_z; |
---|
6039 | cur_data_pos += dim1_offset - current_blockcount_z; |
---|
6040 | } |
---|
6041 | } |
---|
6042 | strip_unpredictable_count += unpredictable_count; |
---|
6043 | unpredictable_data += unpredictable_count; |
---|
6044 | // change indicator |
---|
6045 | indicator_pos[k] = 1; |
---|
6046 | }// end SZ |
---|
6047 | |
---|
6048 | reg_params_pos ++; |
---|
6049 | data_pos += current_blockcount_z; |
---|
6050 | pb_pos += current_blockcount_z; |
---|
6051 | next_pb_pos += current_blockcount_z; |
---|
6052 | type += current_blockcount_x * current_blockcount_y * current_blockcount_z; |
---|
6053 | |
---|
6054 | } |
---|
6055 | |
---|
6056 | if(strip_unpredictable_count > max_unpred_count){ |
---|
6057 | max_unpred_count = strip_unpredictable_count; |
---|
6058 | } |
---|
6059 | total_unpred += strip_unpredictable_count; |
---|
6060 | indicator_pos += num_z; |
---|
6061 | } |
---|
6062 | float * tmp; |
---|
6063 | tmp = cur_pb_buf; |
---|
6064 | cur_pb_buf = next_pb_buf; |
---|
6065 | next_pb_buf = tmp; |
---|
6066 | } |
---|
6067 | } |
---|
6068 | |
---|
6069 | free(prediction_buffer_1); |
---|
6070 | free(prediction_buffer_2); |
---|
6071 | |
---|
6072 | int stateNum = 2*quantization_intervals; |
---|
6073 | HuffmanTree* huffmanTree = createHuffmanTree(stateNum); |
---|
6074 | |
---|
6075 | size_t nodeCount = 0; |
---|
6076 | init(huffmanTree, result_type, num_elements); |
---|
6077 | size_t i = 0; |
---|
6078 | for (i = 0; i < huffmanTree->stateNum; i++) |
---|
6079 | if (huffmanTree->code[i]) nodeCount++; |
---|
6080 | nodeCount = nodeCount*2-1; |
---|
6081 | |
---|
6082 | unsigned char *treeBytes; |
---|
6083 | unsigned int treeByteSize = convert_HuffTree_to_bytes_anyStates(huffmanTree, nodeCount, &treeBytes); |
---|
6084 | |
---|
6085 | unsigned int meta_data_offset = 3 + 1 + MetaDataByteLength; |
---|
6086 | // total size metadata # elements real precision intervals nodeCount huffman block index unpredicatable count mean unpred size elements |
---|
6087 | unsigned char * result = (unsigned char *) calloc(meta_data_offset + exe_params->SZ_SIZE_TYPE + sizeof(double) + sizeof(int) + sizeof(int) + treeByteSize + num_blocks * sizeof(unsigned short) + num_blocks * sizeof(unsigned short) + num_blocks * sizeof(float) + total_unpred * sizeof(float) + num_elements * sizeof(int), 1); |
---|
6088 | unsigned char * result_pos = result; |
---|
6089 | initRandomAccessBytes(result_pos); |
---|
6090 | |
---|
6091 | result_pos += meta_data_offset; |
---|
6092 | |
---|
6093 | sizeToBytes(result_pos,num_elements); //SZ_SIZE_TYPE: 4 or 8 |
---|
6094 | result_pos += exe_params->SZ_SIZE_TYPE; |
---|
6095 | |
---|
6096 | intToBytes_bigEndian(result_pos, block_size); |
---|
6097 | result_pos += sizeof(int); |
---|
6098 | doubleToBytes(result_pos, realPrecision); |
---|
6099 | result_pos += sizeof(double); |
---|
6100 | intToBytes_bigEndian(result_pos, quantization_intervals); |
---|
6101 | result_pos += sizeof(int); |
---|
6102 | intToBytes_bigEndian(result_pos, treeByteSize); |
---|
6103 | result_pos += sizeof(int); |
---|
6104 | intToBytes_bigEndian(result_pos, nodeCount); |
---|
6105 | result_pos += sizeof(int); |
---|
6106 | memcpy(result_pos, treeBytes, treeByteSize); |
---|
6107 | result_pos += treeByteSize; |
---|
6108 | free(treeBytes); |
---|
6109 | |
---|
6110 | memcpy(result_pos, &use_mean, sizeof(unsigned char)); |
---|
6111 | result_pos += sizeof(unsigned char); |
---|
6112 | memcpy(result_pos, &mean, sizeof(float)); |
---|
6113 | result_pos += sizeof(float); |
---|
6114 | size_t indicator_size = convertIntArray2ByteArray_fast_1b_to_result(indicator, num_blocks, result_pos); |
---|
6115 | result_pos += indicator_size; |
---|
6116 | |
---|
6117 | //convert the lead/mid/resi to byte stream |
---|
6118 | if(reg_count > 0){ |
---|
6119 | for(int e=0; e<4; e++){ |
---|
6120 | int stateNum = 2*coeff_intvCapacity_sz; |
---|
6121 | HuffmanTree* huffmanTree = createHuffmanTree(stateNum); |
---|
6122 | size_t nodeCount = 0; |
---|
6123 | init(huffmanTree, coeff_type[e], reg_count); |
---|
6124 | size_t i = 0; |
---|
6125 | for (i = 0; i < huffmanTree->stateNum; i++) |
---|
6126 | if (huffmanTree->code[i]) nodeCount++; |
---|
6127 | nodeCount = nodeCount*2-1; |
---|
6128 | unsigned char *treeBytes; |
---|
6129 | unsigned int treeByteSize = convert_HuffTree_to_bytes_anyStates(huffmanTree, nodeCount, &treeBytes); |
---|
6130 | doubleToBytes(result_pos, precision[e]); |
---|
6131 | result_pos += sizeof(double); |
---|
6132 | intToBytes_bigEndian(result_pos, coeff_intvRadius); |
---|
6133 | result_pos += sizeof(int); |
---|
6134 | intToBytes_bigEndian(result_pos, treeByteSize); |
---|
6135 | result_pos += sizeof(int); |
---|
6136 | intToBytes_bigEndian(result_pos, nodeCount); |
---|
6137 | result_pos += sizeof(int); |
---|
6138 | memcpy(result_pos, treeBytes, treeByteSize); |
---|
6139 | result_pos += treeByteSize; |
---|
6140 | free(treeBytes); |
---|
6141 | size_t typeArray_size = 0; |
---|
6142 | encode(huffmanTree, coeff_type[e], reg_count, result_pos + sizeof(size_t), &typeArray_size); |
---|
6143 | sizeToBytes(result_pos, typeArray_size); |
---|
6144 | result_pos += sizeof(size_t) + typeArray_size; |
---|
6145 | intToBytes_bigEndian(result_pos, coeff_unpredictable_count[e]); |
---|
6146 | result_pos += sizeof(int); |
---|
6147 | memcpy(result_pos, coeff_unpred_data[e], coeff_unpredictable_count[e]*sizeof(float)); |
---|
6148 | result_pos += coeff_unpredictable_count[e]*sizeof(float); |
---|
6149 | SZ_ReleaseHuffman(huffmanTree); |
---|
6150 | } |
---|
6151 | } |
---|
6152 | free(coeff_result_type); |
---|
6153 | free(coeff_unpredictable_data); |
---|
6154 | |
---|
6155 | //record the number of unpredictable data and also store them |
---|
6156 | memcpy(result_pos, &total_unpred, sizeof(size_t)); |
---|
6157 | result_pos += sizeof(size_t); |
---|
6158 | memcpy(result_pos, result_unpredictable_data, total_unpred * sizeof(float)); |
---|
6159 | result_pos += total_unpred * sizeof(float); |
---|
6160 | size_t typeArray_size = 0; |
---|
6161 | encode(huffmanTree, result_type, num_elements, result_pos, &typeArray_size); |
---|
6162 | result_pos += typeArray_size; |
---|
6163 | size_t totalEncodeSize = result_pos - result; |
---|
6164 | free(indicator); |
---|
6165 | free(result_unpredictable_data); |
---|
6166 | free(result_type); |
---|
6167 | free(reg_params); |
---|
6168 | |
---|
6169 | |
---|
6170 | SZ_ReleaseHuffman(huffmanTree); |
---|
6171 | *comp_size = totalEncodeSize; |
---|
6172 | return result; |
---|
6173 | } |
---|
6174 | |
---|
6175 | unsigned char * SZ_compress_float_3D_MDQ_random_access_with_blocked_regression(float *oriData, size_t r1, size_t r2, size_t r3, double realPrecision, size_t * comp_size){ |
---|
6176 | |
---|
6177 | unsigned int quantization_intervals; |
---|
6178 | float sz_sample_correct_freq = -1;//0.5; //-1 |
---|
6179 | float dense_pos; |
---|
6180 | float mean_flush_freq; |
---|
6181 | unsigned char use_mean = 0; |
---|
6182 | |
---|
6183 | // calculate block dims |
---|
6184 | size_t num_x, num_y, num_z; |
---|
6185 | size_t block_size = 6; |
---|
6186 | num_x = (r1 - 1) / block_size + 1; |
---|
6187 | num_y = (r2 - 1) / block_size + 1; |
---|
6188 | num_z = (r3 - 1) / block_size + 1; |
---|
6189 | |
---|
6190 | size_t max_num_block_elements = block_size * block_size * block_size; |
---|
6191 | size_t num_blocks = num_x * num_y * num_z; |
---|
6192 | size_t num_elements = r1 * r2 * r3; |
---|
6193 | |
---|
6194 | size_t dim0_offset = r2 * r3; |
---|
6195 | size_t dim1_offset = r3; |
---|
6196 | |
---|
6197 | int * result_type = (int *) malloc(num_blocks*max_num_block_elements * sizeof(int)); |
---|
6198 | size_t unpred_data_max_size = max_num_block_elements; |
---|
6199 | float * result_unpredictable_data = (float *) malloc(unpred_data_max_size * sizeof(float) * num_blocks); |
---|
6200 | size_t total_unpred = 0; |
---|
6201 | size_t unpredictable_count; |
---|
6202 | float * data_pos = oriData; |
---|
6203 | int * type = result_type; |
---|
6204 | float * reg_params = (float *) malloc(num_blocks * 4 * sizeof(float)); |
---|
6205 | float * reg_params_pos = reg_params; |
---|
6206 | // move regression part out |
---|
6207 | size_t params_offset_b = num_blocks; |
---|
6208 | size_t params_offset_c = 2*num_blocks; |
---|
6209 | size_t params_offset_d = 3*num_blocks; |
---|
6210 | float * pred_buffer = (float *) malloc((block_size+1)*(block_size+1)*(block_size+1)*sizeof(float)); |
---|
6211 | float * pred_buffer_pos = NULL; |
---|
6212 | float * block_data_pos_x = NULL; |
---|
6213 | float * block_data_pos_y = NULL; |
---|
6214 | float * block_data_pos_z = NULL; |
---|
6215 | for(size_t i=0; i<num_x; i++){ |
---|
6216 | for(size_t j=0; j<num_y; j++){ |
---|
6217 | for(size_t k=0; k<num_z; k++){ |
---|
6218 | data_pos = oriData + i*block_size * dim0_offset + j*block_size * dim1_offset + k*block_size; |
---|
6219 | pred_buffer_pos = pred_buffer; |
---|
6220 | block_data_pos_x = data_pos; |
---|
6221 | // use the buffer as block_size*block_size*block_size |
---|
6222 | for(int ii=0; ii<block_size; ii++){ |
---|
6223 | block_data_pos_y = block_data_pos_x; |
---|
6224 | for(int jj=0; jj<block_size; jj++){ |
---|
6225 | block_data_pos_z = block_data_pos_y; |
---|
6226 | for(int kk=0; kk<block_size; kk++){ |
---|
6227 | *pred_buffer_pos = *block_data_pos_z; |
---|
6228 | if(k*block_size + kk + 1 < r3) block_data_pos_z ++; |
---|
6229 | pred_buffer_pos ++; |
---|
6230 | } |
---|
6231 | if(j*block_size + jj + 1 < r2) block_data_pos_y += dim1_offset; |
---|
6232 | } |
---|
6233 | if(i*block_size + ii + 1 < r1) block_data_pos_x += dim0_offset; |
---|
6234 | } |
---|
6235 | /*Calculate regression coefficients*/ |
---|
6236 | { |
---|
6237 | float * cur_data_pos = pred_buffer; |
---|
6238 | float fx = 0.0; |
---|
6239 | float fy = 0.0; |
---|
6240 | float fz = 0.0; |
---|
6241 | float f = 0; |
---|
6242 | float sum_x, sum_y; |
---|
6243 | float curData; |
---|
6244 | for(size_t i=0; i<block_size; i++){ |
---|
6245 | sum_x = 0; |
---|
6246 | for(size_t j=0; j<block_size; j++){ |
---|
6247 | sum_y = 0; |
---|
6248 | for(size_t k=0; k<block_size; k++){ |
---|
6249 | curData = *cur_data_pos; |
---|
6250 | sum_y += curData; |
---|
6251 | fz += curData * k; |
---|
6252 | cur_data_pos ++; |
---|
6253 | } |
---|
6254 | fy += sum_y * j; |
---|
6255 | sum_x += sum_y; |
---|
6256 | } |
---|
6257 | fx += sum_x * i; |
---|
6258 | f += sum_x; |
---|
6259 | } |
---|
6260 | float coeff = 1.0 / (block_size * block_size * block_size); |
---|
6261 | reg_params_pos[0] = (2 * fx / (block_size - 1) - f) * 6 * coeff / (block_size + 1); |
---|
6262 | reg_params_pos[params_offset_b] = (2 * fy / (block_size - 1) - f) * 6 * coeff / (block_size + 1); |
---|
6263 | reg_params_pos[params_offset_c] = (2 * fz / (block_size - 1) - f) * 6 * coeff / (block_size + 1); |
---|
6264 | reg_params_pos[params_offset_d] = f * coeff - ((block_size - 1) * reg_params_pos[0] / 2 + (block_size - 1) * reg_params_pos[params_offset_b] / 2 + (block_size - 1) * reg_params_pos[params_offset_c] / 2); |
---|
6265 | } |
---|
6266 | reg_params_pos ++; |
---|
6267 | } |
---|
6268 | } |
---|
6269 | } |
---|
6270 | |
---|
6271 | //Compress coefficient arrays |
---|
6272 | double precision_a, precision_b, precision_c, precision_d; |
---|
6273 | float rel_param_err = 0.025; |
---|
6274 | precision_a = rel_param_err * realPrecision / block_size; |
---|
6275 | precision_b = rel_param_err * realPrecision / block_size; |
---|
6276 | precision_c = rel_param_err * realPrecision / block_size; |
---|
6277 | precision_d = rel_param_err * realPrecision; |
---|
6278 | |
---|
6279 | if(exe_params->optQuantMode==1) |
---|
6280 | { |
---|
6281 | quantization_intervals = optimize_intervals_float_3D_with_freq_and_dense_pos(oriData, r1, r2, r3, realPrecision, &dense_pos, &sz_sample_correct_freq, &mean_flush_freq); |
---|
6282 | if(mean_flush_freq > 0.5 || mean_flush_freq > sz_sample_correct_freq) use_mean = 1; |
---|
6283 | updateQuantizationInfo(quantization_intervals); |
---|
6284 | } |
---|
6285 | else{ |
---|
6286 | quantization_intervals = exe_params->intvCapacity; |
---|
6287 | } |
---|
6288 | |
---|
6289 | float mean = 0; |
---|
6290 | if(use_mean){ |
---|
6291 | // compute mean |
---|
6292 | double sum = 0.0; |
---|
6293 | size_t mean_count = 0; |
---|
6294 | for(size_t i=0; i<num_elements; i++){ |
---|
6295 | if(fabs(oriData[i] - dense_pos) < realPrecision){ |
---|
6296 | sum += oriData[i]; |
---|
6297 | mean_count ++; |
---|
6298 | } |
---|
6299 | } |
---|
6300 | if(mean_count > 0) mean = sum / mean_count; |
---|
6301 | } |
---|
6302 | |
---|
6303 | double tmp_realPrecision = realPrecision; |
---|
6304 | |
---|
6305 | // use two prediction buffers for higher performance |
---|
6306 | float * unpredictable_data = result_unpredictable_data; |
---|
6307 | unsigned char * indicator = (unsigned char *) malloc(num_blocks * sizeof(unsigned char)); |
---|
6308 | memset(indicator, 0, num_blocks * sizeof(unsigned char)); |
---|
6309 | size_t reg_count = 0; |
---|
6310 | unsigned char * indicator_pos = indicator; |
---|
6311 | |
---|
6312 | int intvCapacity = exe_params->intvCapacity; |
---|
6313 | int intvRadius = exe_params->intvRadius; |
---|
6314 | int use_reg = 0; |
---|
6315 | float noise = realPrecision * 1.22; |
---|
6316 | |
---|
6317 | reg_params_pos = reg_params; |
---|
6318 | // compress the regression coefficients on the fly |
---|
6319 | float last_coeffcients[4] = {0.0}; |
---|
6320 | int coeff_intvCapacity_sz = 65536; |
---|
6321 | int coeff_intvRadius = coeff_intvCapacity_sz / 2; |
---|
6322 | int * coeff_type[4]; |
---|
6323 | int * coeff_result_type = (int *) malloc(num_blocks*4*sizeof(int)); |
---|
6324 | float * coeff_unpred_data[4]; |
---|
6325 | float * coeff_unpredictable_data = (float *) malloc(num_blocks*4*sizeof(float)); |
---|
6326 | double precision[4]; |
---|
6327 | precision[0] = precision_a, precision[1] = precision_b, precision[2] = precision_c, precision[3] = precision_d; |
---|
6328 | for(int i=0; i<4; i++){ |
---|
6329 | coeff_type[i] = coeff_result_type + i * num_blocks; |
---|
6330 | coeff_unpred_data[i] = coeff_unpredictable_data + i * num_blocks; |
---|
6331 | } |
---|
6332 | int coeff_index = 0; |
---|
6333 | unsigned int coeff_unpredictable_count[4] = {0}; |
---|
6334 | |
---|
6335 | memset(pred_buffer, 0, (block_size+1)*(block_size+1)*(block_size+1)*sizeof(float)); |
---|
6336 | int pred_buffer_block_size = block_size + 1; |
---|
6337 | int strip_dim0_offset = pred_buffer_block_size * pred_buffer_block_size; |
---|
6338 | int strip_dim1_offset = pred_buffer_block_size; |
---|
6339 | |
---|
6340 | if(use_mean){ |
---|
6341 | int intvCapacity_sz = intvCapacity - 2; |
---|
6342 | type = result_type; |
---|
6343 | for(size_t i=0; i<num_x; i++){ |
---|
6344 | for(size_t j=0; j<num_y; j++){ |
---|
6345 | for(size_t k=0; k<num_z; k++){ |
---|
6346 | data_pos = oriData + i*block_size * dim0_offset + j*block_size * dim1_offset + k*block_size; |
---|
6347 | // add 1 in x, y, z offset |
---|
6348 | pred_buffer_pos = pred_buffer + pred_buffer_block_size*pred_buffer_block_size + pred_buffer_block_size + 1; |
---|
6349 | block_data_pos_x = data_pos; |
---|
6350 | for(int ii=0; ii<block_size; ii++){ |
---|
6351 | block_data_pos_y = block_data_pos_x; |
---|
6352 | for(int jj=0; jj<block_size; jj++){ |
---|
6353 | block_data_pos_z = block_data_pos_y; |
---|
6354 | for(int kk=0; kk<block_size; kk++){ |
---|
6355 | *pred_buffer_pos = *block_data_pos_z; |
---|
6356 | if(k*block_size + kk + 1< r3) block_data_pos_z ++; |
---|
6357 | pred_buffer_pos ++; |
---|
6358 | } |
---|
6359 | // add 1 in z offset |
---|
6360 | pred_buffer_pos ++; |
---|
6361 | if(j*block_size + jj + 1< r2) block_data_pos_y += dim1_offset; |
---|
6362 | } |
---|
6363 | // add 1 in y offset |
---|
6364 | pred_buffer_pos += pred_buffer_block_size; |
---|
6365 | if(i*block_size + ii + 1< r1) block_data_pos_x += dim0_offset; |
---|
6366 | } |
---|
6367 | /*sampling and decide which predictor*/ |
---|
6368 | { |
---|
6369 | // sample point [1, 1, 1] [1, 1, 4] [1, 4, 1] [1, 4, 4] [4, 1, 1] [4, 1, 4] [4, 4, 1] [4, 4, 4] |
---|
6370 | float * cur_data_pos; |
---|
6371 | float curData; |
---|
6372 | float pred_reg, pred_sz; |
---|
6373 | float err_sz = 0.0, err_reg = 0.0; |
---|
6374 | int bmi = 0; |
---|
6375 | for(int i=2; i<=block_size; i++){ |
---|
6376 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + i*pred_buffer_block_size + i; |
---|
6377 | curData = *cur_data_pos; |
---|
6378 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6379 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
6380 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
6381 | err_reg += fabs(pred_reg - curData); |
---|
6382 | |
---|
6383 | bmi = block_size - i; |
---|
6384 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + i*pred_buffer_block_size + bmi; |
---|
6385 | curData = *cur_data_pos; |
---|
6386 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6387 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
6388 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
6389 | err_reg += fabs(pred_reg - curData); |
---|
6390 | |
---|
6391 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + bmi*pred_buffer_block_size + i; |
---|
6392 | curData = *cur_data_pos; |
---|
6393 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6394 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
6395 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
6396 | err_reg += fabs(pred_reg - curData); |
---|
6397 | |
---|
6398 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + bmi*pred_buffer_block_size + bmi; |
---|
6399 | curData = *cur_data_pos; |
---|
6400 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6401 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
6402 | err_sz += MIN(fabs(pred_sz - curData) + noise, fabs(mean - curData)); |
---|
6403 | err_reg += fabs(pred_reg - curData); |
---|
6404 | } |
---|
6405 | |
---|
6406 | use_reg = (err_reg < err_sz); |
---|
6407 | } |
---|
6408 | if(use_reg){ |
---|
6409 | { |
---|
6410 | /*predict coefficients in current block via previous reg_block*/ |
---|
6411 | float cur_coeff; |
---|
6412 | double diff, itvNum; |
---|
6413 | for(int e=0; e<4; e++){ |
---|
6414 | cur_coeff = reg_params_pos[e*num_blocks]; |
---|
6415 | diff = cur_coeff - last_coeffcients[e]; |
---|
6416 | itvNum = fabs(diff)/precision[e] + 1; |
---|
6417 | if (itvNum < coeff_intvCapacity_sz){ |
---|
6418 | if (diff < 0) itvNum = -itvNum; |
---|
6419 | coeff_type[e][coeff_index] = (int) (itvNum/2) + coeff_intvRadius; |
---|
6420 | last_coeffcients[e] = last_coeffcients[e] + 2 * (coeff_type[e][coeff_index] - coeff_intvRadius) * precision[e]; |
---|
6421 | //ganrantee comporession error against the case of machine-epsilon |
---|
6422 | if(fabs(cur_coeff - last_coeffcients[e])>precision[e]){ |
---|
6423 | coeff_type[e][coeff_index] = 0; |
---|
6424 | last_coeffcients[e] = cur_coeff; |
---|
6425 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
6426 | } |
---|
6427 | } |
---|
6428 | else{ |
---|
6429 | coeff_type[e][coeff_index] = 0; |
---|
6430 | last_coeffcients[e] = cur_coeff; |
---|
6431 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
6432 | } |
---|
6433 | } |
---|
6434 | coeff_index ++; |
---|
6435 | } |
---|
6436 | float curData; |
---|
6437 | float pred; |
---|
6438 | double itvNum; |
---|
6439 | double diff; |
---|
6440 | size_t index = 0; |
---|
6441 | size_t block_unpredictable_count = 0; |
---|
6442 | float * cur_data_pos = pred_buffer + pred_buffer_block_size*pred_buffer_block_size + pred_buffer_block_size + 1; |
---|
6443 | for(size_t ii=0; ii<block_size; ii++){ |
---|
6444 | for(size_t jj=0; jj<block_size; jj++){ |
---|
6445 | for(size_t kk=0; kk<block_size; kk++){ |
---|
6446 | curData = *cur_data_pos; |
---|
6447 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2] * kk + last_coeffcients[3]; |
---|
6448 | diff = curData - pred; |
---|
6449 | itvNum = fabs(diff)/tmp_realPrecision + 1; |
---|
6450 | if (itvNum < intvCapacity){ |
---|
6451 | if (diff < 0) itvNum = -itvNum; |
---|
6452 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
6453 | pred = pred + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
6454 | //ganrantee comporession error against the case of machine-epsilon |
---|
6455 | if(fabs(curData - pred)>tmp_realPrecision){ |
---|
6456 | type[index] = 0; |
---|
6457 | pred = curData; |
---|
6458 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
6459 | } |
---|
6460 | } |
---|
6461 | else{ |
---|
6462 | type[index] = 0; |
---|
6463 | pred = curData; |
---|
6464 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
6465 | } |
---|
6466 | index ++; |
---|
6467 | cur_data_pos ++; |
---|
6468 | } |
---|
6469 | cur_data_pos ++; |
---|
6470 | } |
---|
6471 | cur_data_pos += pred_buffer_block_size; |
---|
6472 | } |
---|
6473 | |
---|
6474 | total_unpred += block_unpredictable_count; |
---|
6475 | unpredictable_data += block_unpredictable_count; |
---|
6476 | reg_count ++; |
---|
6477 | } |
---|
6478 | else{ |
---|
6479 | // use SZ |
---|
6480 | // SZ predication |
---|
6481 | unpredictable_count = 0; |
---|
6482 | float * cur_data_pos = pred_buffer + pred_buffer_block_size*pred_buffer_block_size + pred_buffer_block_size + 1; |
---|
6483 | float curData; |
---|
6484 | float pred3D; |
---|
6485 | double itvNum, diff; |
---|
6486 | size_t index = 0; |
---|
6487 | for(size_t ii=0; ii<block_size; ii++){ |
---|
6488 | for(size_t jj=0; jj<block_size; jj++){ |
---|
6489 | for(size_t kk=0; kk<block_size; kk++){ |
---|
6490 | |
---|
6491 | curData = *cur_data_pos; |
---|
6492 | if(fabs(curData - mean) <= realPrecision){ |
---|
6493 | type[index] = 1; |
---|
6494 | *cur_data_pos = mean; |
---|
6495 | } |
---|
6496 | else |
---|
6497 | { |
---|
6498 | pred3D = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] |
---|
6499 | - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6500 | diff = curData - pred3D; |
---|
6501 | itvNum = fabs(diff)/realPrecision + 1; |
---|
6502 | if (itvNum < intvCapacity_sz){ |
---|
6503 | if (diff < 0) itvNum = -itvNum; |
---|
6504 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
6505 | *cur_data_pos = pred3D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
6506 | //ganrantee comporession error against the case of machine-epsilon |
---|
6507 | if(fabs(curData - *cur_data_pos)>tmp_realPrecision){ |
---|
6508 | type[index] = 0; |
---|
6509 | *cur_data_pos = curData; |
---|
6510 | unpredictable_data[unpredictable_count ++] = curData; |
---|
6511 | } |
---|
6512 | } |
---|
6513 | else{ |
---|
6514 | type[index] = 0; |
---|
6515 | *cur_data_pos = curData; |
---|
6516 | unpredictable_data[unpredictable_count ++] = curData; |
---|
6517 | } |
---|
6518 | } |
---|
6519 | index ++; |
---|
6520 | cur_data_pos ++; |
---|
6521 | } |
---|
6522 | cur_data_pos ++; |
---|
6523 | } |
---|
6524 | cur_data_pos += pred_buffer_block_size; |
---|
6525 | } |
---|
6526 | total_unpred += unpredictable_count; |
---|
6527 | unpredictable_data += unpredictable_count; |
---|
6528 | // change indicator |
---|
6529 | indicator_pos[k] = 1; |
---|
6530 | }// end SZ |
---|
6531 | reg_params_pos ++; |
---|
6532 | type += block_size * block_size * block_size; |
---|
6533 | } // end k |
---|
6534 | indicator_pos += num_z; |
---|
6535 | }// end j |
---|
6536 | }// end i |
---|
6537 | } |
---|
6538 | else{ |
---|
6539 | int intvCapacity_sz = intvCapacity - 2; |
---|
6540 | type = result_type; |
---|
6541 | for(size_t i=0; i<num_x; i++){ |
---|
6542 | for(size_t j=0; j<num_y; j++){ |
---|
6543 | for(size_t k=0; k<num_z; k++){ |
---|
6544 | data_pos = oriData + i*block_size * dim0_offset + j*block_size * dim1_offset + k*block_size; |
---|
6545 | // add 1 in x, y, z offset |
---|
6546 | pred_buffer_pos = pred_buffer + pred_buffer_block_size*pred_buffer_block_size + pred_buffer_block_size + 1; |
---|
6547 | block_data_pos_x = data_pos; |
---|
6548 | for(int ii=0; ii<block_size; ii++){ |
---|
6549 | block_data_pos_y = block_data_pos_x; |
---|
6550 | for(int jj=0; jj<block_size; jj++){ |
---|
6551 | block_data_pos_z = block_data_pos_y; |
---|
6552 | for(int kk=0; kk<block_size; kk++){ |
---|
6553 | *pred_buffer_pos = *block_data_pos_z; |
---|
6554 | if(k*block_size + kk < r3) block_data_pos_z ++; |
---|
6555 | pred_buffer_pos ++; |
---|
6556 | } |
---|
6557 | // add 1 in z offset |
---|
6558 | pred_buffer_pos ++; |
---|
6559 | if(j*block_size + jj < r2) block_data_pos_y += dim1_offset; |
---|
6560 | } |
---|
6561 | // add 1 in y offset |
---|
6562 | pred_buffer_pos += pred_buffer_block_size; |
---|
6563 | if(i*block_size + ii < r1) block_data_pos_x += dim0_offset; |
---|
6564 | } |
---|
6565 | /*sampling*/ |
---|
6566 | { |
---|
6567 | // sample point [1, 1, 1] [1, 1, 4] [1, 4, 1] [1, 4, 4] [4, 1, 1] [4, 1, 4] [4, 4, 1] [4, 4, 4] |
---|
6568 | float * cur_data_pos; |
---|
6569 | float curData; |
---|
6570 | float pred_reg, pred_sz; |
---|
6571 | float err_sz = 0.0, err_reg = 0.0; |
---|
6572 | int bmi; |
---|
6573 | for(int i=2; i<=block_size; i++){ |
---|
6574 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + i*pred_buffer_block_size + i; |
---|
6575 | curData = *cur_data_pos; |
---|
6576 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6577 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
6578 | err_sz += fabs(pred_sz - curData) + noise; |
---|
6579 | err_reg += fabs(pred_reg - curData); |
---|
6580 | |
---|
6581 | bmi = block_size - i; |
---|
6582 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + i*pred_buffer_block_size + bmi; |
---|
6583 | curData = *cur_data_pos; |
---|
6584 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6585 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * i + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
6586 | err_sz += fabs(pred_sz - curData) + noise; |
---|
6587 | err_reg += fabs(pred_reg - curData); |
---|
6588 | |
---|
6589 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + bmi*pred_buffer_block_size + i; |
---|
6590 | curData = *cur_data_pos; |
---|
6591 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6592 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * i + reg_params_pos[params_offset_d]; |
---|
6593 | err_sz += fabs(pred_sz - curData) + noise; |
---|
6594 | err_reg += fabs(pred_reg - curData); |
---|
6595 | |
---|
6596 | cur_data_pos = pred_buffer + i*pred_buffer_block_size*pred_buffer_block_size + bmi*pred_buffer_block_size + bmi; |
---|
6597 | curData = *cur_data_pos; |
---|
6598 | pred_sz = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6599 | pred_reg = reg_params_pos[0] * i + reg_params_pos[params_offset_b] * bmi + reg_params_pos[params_offset_c] * bmi + reg_params_pos[params_offset_d]; |
---|
6600 | err_sz += fabs(pred_sz - curData) + noise; |
---|
6601 | err_reg += fabs(pred_reg - curData); |
---|
6602 | } |
---|
6603 | |
---|
6604 | use_reg = (err_reg < err_sz); |
---|
6605 | |
---|
6606 | } |
---|
6607 | if(use_reg) |
---|
6608 | { |
---|
6609 | { |
---|
6610 | /*predict coefficients in current block via previous reg_block*/ |
---|
6611 | float cur_coeff; |
---|
6612 | double diff, itvNum; |
---|
6613 | for(int e=0; e<4; e++){ |
---|
6614 | cur_coeff = reg_params_pos[e*num_blocks]; |
---|
6615 | diff = cur_coeff - last_coeffcients[e]; |
---|
6616 | itvNum = fabs(diff)/precision[e] + 1; |
---|
6617 | if (itvNum < coeff_intvCapacity_sz){ |
---|
6618 | if (diff < 0) itvNum = -itvNum; |
---|
6619 | coeff_type[e][coeff_index] = (int) (itvNum/2) + coeff_intvRadius; |
---|
6620 | last_coeffcients[e] = last_coeffcients[e] + 2 * (coeff_type[e][coeff_index] - coeff_intvRadius) * precision[e]; |
---|
6621 | //ganrantee comporession error against the case of machine-epsilon |
---|
6622 | if(fabs(cur_coeff - last_coeffcients[e])>precision[e]){ |
---|
6623 | coeff_type[e][coeff_index] = 0; |
---|
6624 | last_coeffcients[e] = cur_coeff; |
---|
6625 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
6626 | } |
---|
6627 | } |
---|
6628 | else{ |
---|
6629 | coeff_type[e][coeff_index] = 0; |
---|
6630 | last_coeffcients[e] = cur_coeff; |
---|
6631 | coeff_unpred_data[e][coeff_unpredictable_count[e] ++] = cur_coeff; |
---|
6632 | } |
---|
6633 | } |
---|
6634 | coeff_index ++; |
---|
6635 | } |
---|
6636 | float curData; |
---|
6637 | float pred; |
---|
6638 | double itvNum; |
---|
6639 | double diff; |
---|
6640 | size_t index = 0; |
---|
6641 | size_t block_unpredictable_count = 0; |
---|
6642 | float * cur_data_pos = pred_buffer + pred_buffer_block_size*pred_buffer_block_size + pred_buffer_block_size + 1; |
---|
6643 | for(size_t ii=0; ii<block_size; ii++){ |
---|
6644 | for(size_t jj=0; jj<block_size; jj++){ |
---|
6645 | for(size_t kk=0; kk<block_size; kk++){ |
---|
6646 | curData = *cur_data_pos; |
---|
6647 | pred = last_coeffcients[0] * ii + last_coeffcients[1] * jj + last_coeffcients[2] * kk + last_coeffcients[3]; |
---|
6648 | diff = curData - pred; |
---|
6649 | itvNum = fabs(diff)/tmp_realPrecision + 1; |
---|
6650 | if (itvNum < intvCapacity){ |
---|
6651 | if (diff < 0) itvNum = -itvNum; |
---|
6652 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
6653 | pred = pred + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
6654 | //ganrantee comporession error against the case of machine-epsilon |
---|
6655 | if(fabs(curData - pred)>tmp_realPrecision){ |
---|
6656 | type[index] = 0; |
---|
6657 | pred = curData; |
---|
6658 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
6659 | } |
---|
6660 | } |
---|
6661 | else{ |
---|
6662 | type[index] = 0; |
---|
6663 | pred = curData; |
---|
6664 | unpredictable_data[block_unpredictable_count ++] = curData; |
---|
6665 | } |
---|
6666 | index ++; |
---|
6667 | cur_data_pos ++; |
---|
6668 | } |
---|
6669 | cur_data_pos ++; |
---|
6670 | } |
---|
6671 | cur_data_pos += pred_buffer_block_size; |
---|
6672 | } |
---|
6673 | total_unpred += block_unpredictable_count; |
---|
6674 | unpredictable_data += block_unpredictable_count; |
---|
6675 | reg_count ++; |
---|
6676 | } |
---|
6677 | else{ |
---|
6678 | // use SZ |
---|
6679 | // SZ predication |
---|
6680 | unpredictable_count = 0; |
---|
6681 | float * cur_data_pos = pred_buffer + pred_buffer_block_size*pred_buffer_block_size + pred_buffer_block_size + 1; |
---|
6682 | float curData; |
---|
6683 | float pred3D; |
---|
6684 | double itvNum, diff; |
---|
6685 | size_t index = 0; |
---|
6686 | for(size_t ii=0; ii<block_size; ii++){ |
---|
6687 | for(size_t jj=0; jj<block_size; jj++){ |
---|
6688 | for(size_t kk=0; kk<block_size; kk++){ |
---|
6689 | curData = *cur_data_pos; |
---|
6690 | pred3D = cur_data_pos[-1] + cur_data_pos[-strip_dim1_offset]+ cur_data_pos[-strip_dim0_offset] - cur_data_pos[-strip_dim1_offset - 1] |
---|
6691 | - cur_data_pos[-strip_dim0_offset - 1] - cur_data_pos[-strip_dim0_offset - strip_dim1_offset] + cur_data_pos[-strip_dim0_offset - strip_dim1_offset - 1]; |
---|
6692 | diff = curData - pred3D; |
---|
6693 | itvNum = fabs(diff)/realPrecision + 1; |
---|
6694 | if (itvNum < intvCapacity_sz){ |
---|
6695 | if (diff < 0) itvNum = -itvNum; |
---|
6696 | type[index] = (int) (itvNum/2) + intvRadius; |
---|
6697 | *cur_data_pos = pred3D + 2 * (type[index] - intvRadius) * tmp_realPrecision; |
---|
6698 | //ganrantee comporession error against the case of machine-epsilon |
---|
6699 | if(fabs(curData - *cur_data_pos)>tmp_realPrecision){ |
---|
6700 | type[index] = 0; |
---|
6701 | *cur_data_pos = curData; |
---|
6702 | unpredictable_data[unpredictable_count ++] = curData; |
---|
6703 | } |
---|
6704 | } |
---|
6705 | else{ |
---|
6706 | type[index] = 0; |
---|
6707 | *cur_data_pos = curData; |
---|
6708 | unpredictable_data[unpredictable_count ++] = curData; |
---|
6709 | } |
---|
6710 | index ++; |
---|
6711 | cur_data_pos ++; |
---|
6712 | } |
---|
6713 | cur_data_pos ++; |
---|
6714 | } |
---|
6715 | cur_data_pos += pred_buffer_block_size; |
---|
6716 | } |
---|
6717 | total_unpred += unpredictable_count; |
---|
6718 | unpredictable_data += unpredictable_count; |
---|
6719 | // change indicator |
---|
6720 | indicator_pos[k] = 1; |
---|
6721 | }// end SZ |
---|
6722 | reg_params_pos ++; |
---|
6723 | type += block_size * block_size * block_size; |
---|
6724 | } |
---|
6725 | indicator_pos += num_z; |
---|
6726 | } |
---|
6727 | } |
---|
6728 | } |
---|
6729 | free(pred_buffer); |
---|
6730 | int stateNum = 2*quantization_intervals; |
---|
6731 | HuffmanTree* huffmanTree = createHuffmanTree(stateNum); |
---|
6732 | |
---|
6733 | size_t nodeCount = 0; |
---|
6734 | init(huffmanTree, result_type, num_blocks*max_num_block_elements); |
---|
6735 | size_t i = 0; |
---|
6736 | for (i = 0; i < huffmanTree->stateNum; i++) |
---|
6737 | if (huffmanTree->code[i]) nodeCount++; |
---|
6738 | nodeCount = nodeCount*2-1; |
---|
6739 | |
---|
6740 | unsigned char *treeBytes; |
---|
6741 | unsigned int treeByteSize = convert_HuffTree_to_bytes_anyStates(huffmanTree, nodeCount, &treeBytes); |
---|
6742 | |
---|
6743 | unsigned int meta_data_offset = 3 + 1 + MetaDataByteLength; |
---|
6744 | // total size metadata # elements real precision intervals nodeCount huffman block index unpredicatable count mean unpred size elements |
---|
6745 | unsigned char * result = (unsigned char *) calloc(meta_data_offset + exe_params->SZ_SIZE_TYPE + sizeof(double) + sizeof(int) + sizeof(int) + treeByteSize + num_blocks * sizeof(unsigned short) + num_blocks * sizeof(unsigned short) + num_blocks * sizeof(float) + total_unpred * sizeof(float) + num_elements * sizeof(int), 1); |
---|
6746 | unsigned char * result_pos = result; |
---|
6747 | initRandomAccessBytes(result_pos); |
---|
6748 | |
---|
6749 | result_pos += meta_data_offset; |
---|
6750 | |
---|
6751 | sizeToBytes(result_pos,num_elements); //SZ_SIZE_TYPE: 4 or 8 |
---|
6752 | result_pos += exe_params->SZ_SIZE_TYPE; |
---|
6753 | |
---|
6754 | intToBytes_bigEndian(result_pos, block_size); |
---|
6755 | result_pos += sizeof(int); |
---|
6756 | doubleToBytes(result_pos, realPrecision); |
---|
6757 | result_pos += sizeof(double); |
---|
6758 | intToBytes_bigEndian(result_pos, quantization_intervals); |
---|
6759 | result_pos += sizeof(int); |
---|
6760 | intToBytes_bigEndian(result_pos, treeByteSize); |
---|
6761 | result_pos += sizeof(int); |
---|
6762 | intToBytes_bigEndian(result_pos, nodeCount); |
---|
6763 | result_pos += sizeof(int); |
---|
6764 | memcpy(result_pos, treeBytes, treeByteSize); |
---|
6765 | result_pos += treeByteSize; |
---|
6766 | free(treeBytes); |
---|
6767 | |
---|
6768 | memcpy(result_pos, &use_mean, sizeof(unsigned char)); |
---|
6769 | result_pos += sizeof(unsigned char); |
---|
6770 | memcpy(result_pos, &mean, sizeof(float)); |
---|
6771 | result_pos += sizeof(float); |
---|
6772 | size_t indicator_size = convertIntArray2ByteArray_fast_1b_to_result(indicator, num_blocks, result_pos); |
---|
6773 | result_pos += indicator_size; |
---|
6774 | |
---|
6775 | //convert the lead/mid/resi to byte stream |
---|
6776 | if(reg_count > 0){ |
---|
6777 | for(int e=0; e<4; e++){ |
---|
6778 | int stateNum = 2*coeff_intvCapacity_sz; |
---|
6779 | HuffmanTree* huffmanTree = createHuffmanTree(stateNum); |
---|
6780 | size_t nodeCount = 0; |
---|
6781 | init(huffmanTree, coeff_type[e], reg_count); |
---|
6782 | size_t i = 0; |
---|
6783 | for (i = 0; i < huffmanTree->stateNum; i++) |
---|
6784 | if (huffmanTree->code[i]) nodeCount++; |
---|
6785 | nodeCount = nodeCount*2-1; |
---|
6786 | unsigned char *treeBytes; |
---|
6787 | unsigned int treeByteSize = convert_HuffTree_to_bytes_anyStates(huffmanTree, nodeCount, &treeBytes); |
---|
6788 | doubleToBytes(result_pos, precision[e]); |
---|
6789 | result_pos += sizeof(double); |
---|
6790 | intToBytes_bigEndian(result_pos, coeff_intvRadius); |
---|
6791 | result_pos += sizeof(int); |
---|
6792 | intToBytes_bigEndian(result_pos, treeByteSize); |
---|
6793 | result_pos += sizeof(int); |
---|
6794 | intToBytes_bigEndian(result_pos, nodeCount); |
---|
6795 | result_pos += sizeof(int); |
---|
6796 | memcpy(result_pos, treeBytes, treeByteSize); |
---|
6797 | result_pos += treeByteSize; |
---|
6798 | free(treeBytes); |
---|
6799 | size_t typeArray_size = 0; |
---|
6800 | encode(huffmanTree, coeff_type[e], reg_count, result_pos + sizeof(size_t), &typeArray_size); |
---|
6801 | sizeToBytes(result_pos, typeArray_size); |
---|
6802 | result_pos += sizeof(size_t) + typeArray_size; |
---|
6803 | intToBytes_bigEndian(result_pos, coeff_unpredictable_count[e]); |
---|
6804 | result_pos += sizeof(int); |
---|
6805 | memcpy(result_pos, coeff_unpred_data[e], coeff_unpredictable_count[e]*sizeof(float)); |
---|
6806 | result_pos += coeff_unpredictable_count[e]*sizeof(float); |
---|
6807 | SZ_ReleaseHuffman(huffmanTree); |
---|
6808 | } |
---|
6809 | } |
---|
6810 | free(coeff_result_type); |
---|
6811 | free(coeff_unpredictable_data); |
---|
6812 | |
---|
6813 | //record the number of unpredictable data and also store them |
---|
6814 | memcpy(result_pos, &total_unpred, sizeof(size_t)); |
---|
6815 | result_pos += sizeof(size_t); |
---|
6816 | memcpy(result_pos, result_unpredictable_data, total_unpred * sizeof(float)); |
---|
6817 | result_pos += total_unpred * sizeof(float); |
---|
6818 | size_t typeArray_size = 0; |
---|
6819 | encode(huffmanTree, result_type, num_blocks*max_num_block_elements, result_pos, &typeArray_size); |
---|
6820 | result_pos += typeArray_size; |
---|
6821 | size_t totalEncodeSize = result_pos - result; |
---|
6822 | free(indicator); |
---|
6823 | free(result_unpredictable_data); |
---|
6824 | free(result_type); |
---|
6825 | free(reg_params); |
---|
6826 | |
---|
6827 | |
---|
6828 | SZ_ReleaseHuffman(huffmanTree); |
---|
6829 | *comp_size = totalEncodeSize; |
---|
6830 | return result; |
---|
6831 | } |
---|