1 | /* ----------------- */ |
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2 | /* --- nrsort1.c --- */ |
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3 | /* ----------------- */ |
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4 | |
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5 | /* |
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6 | * Copyright (c) 2000-2014, Lionel Lacassagne, All rights reserved |
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7 | * Univ Paris Sud XI, CNRS |
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8 | * |
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9 | * Distributed under the Boost Software License, Version 1.0 |
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10 | * see accompanying file LICENSE.txt or copy it at |
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11 | * http://www.boost.org/LICENSE_1_0.txt |
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12 | */ |
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13 | |
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14 | |
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15 | #include <stdio.h> |
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16 | #include <stddef.h> |
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17 | #include <stdlib.h> |
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18 | |
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19 | #include "mypredef.h" |
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20 | #include "nrtype.h" |
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21 | #include "nrdef.h" |
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22 | #include "nrmacro.h" |
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23 | #include "nrkernel.h" |
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24 | |
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25 | #include "nrset1.h" |
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26 | #include "nrsort1.h" |
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27 | |
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28 | |
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29 | #undef extractnz_boundaries_type_vector |
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30 | #define extractnz_boundaries_type_vector(t) \ |
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31 | void short_name(t,extractnz_boundaries_,vector)(t * v, int32_t nl, int32_t nh, int32_t * nlnz, int32_t * nhnz) \ |
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32 | { \ |
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33 | int32_t left = nl; \ |
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34 | int32_t right = nh; \ |
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35 | while (!v[left] && left <= nh) { \ |
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36 | left++; \ |
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37 | } \ |
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38 | while (!v[right] && right >= nl) { \ |
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39 | right--; \ |
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40 | } \ |
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41 | *nlnz = left; \ |
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42 | *nhnz = right; \ |
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43 | } |
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44 | |
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45 | |
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46 | extractnz_boundaries_type_vector(int8_t); |
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47 | extractnz_boundaries_type_vector(uint8_t); |
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48 | extractnz_boundaries_type_vector(int16_t); |
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49 | extractnz_boundaries_type_vector(uint16_t); |
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50 | extractnz_boundaries_type_vector(int32_t); |
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51 | extractnz_boundaries_type_vector(uint32_t); |
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52 | extractnz_boundaries_type_vector(int64_t); |
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53 | extractnz_boundaries_type_vector(uint64_t); |
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54 | extractnz_boundaries_type_vector(float); |
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55 | extractnz_boundaries_type_vector(double); |
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56 | |
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57 | |
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58 | |
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59 | void sort_index_f64vector_selection(double * key, int32_t nl, int32_t nh, int32_t * index) |
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60 | { |
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61 | int32_t pos, tmp; |
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62 | double x, min; |
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63 | |
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64 | for (int32_t i = nl; i<=nh; i++) { |
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65 | index[i] = i - nl; |
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66 | } |
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67 | |
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68 | for (int32_t i = nl; i < nh; i++) { |
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69 | min = key[i]; |
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70 | pos = i; |
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71 | for (int32_t j = i + 1; j <= nh; j++) { |
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72 | x = key[j]; |
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73 | if (x < min) { |
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74 | min = x; |
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75 | pos = j; |
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76 | } |
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77 | } |
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78 | key[pos] = key[i]; |
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79 | key[i] = min; |
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80 | |
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81 | tmp = index[i]; |
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82 | index[i] = index[pos]; |
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83 | index[pos] = tmp; |
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84 | } |
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85 | } |
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86 | |
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87 | void sort_index_ivector_selection_min(int32_t * key, int32_t nl, int32_t nh, int32_t * index) |
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88 | { |
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89 | int32_t pos, tmp; |
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90 | int32_t x, min; |
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91 | |
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92 | for (int32_t i = nl; i <= nh; i++) { |
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93 | index[i] = i; |
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94 | } |
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95 | |
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96 | for (int32_t i = nl; i < nh; i++) { |
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97 | min = key[i]; |
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98 | pos = i; |
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99 | for (int32_t j = i + 1; j <= nh; j++) { |
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100 | x = key[j]; |
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101 | if (x < min) { |
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102 | min = x; |
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103 | pos = j; |
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104 | } |
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105 | } |
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106 | key[pos] = key[i]; |
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107 | key[i] = min; |
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108 | |
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109 | tmp = index[i]; |
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110 | index[i] = index[pos]; |
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111 | index[pos] = tmp; |
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112 | } |
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113 | } |
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114 | |
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115 | void sort_index_ivector_selection_max(int32_t * key, int32_t nl, int32_t nh, int32_t * index) |
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116 | { |
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117 | int32_t pos, tmp; |
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118 | int32_t x, max; |
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119 | |
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120 | for (int32_t i = nl; i <= nh; i++) { |
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121 | index[i] = i; |
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122 | } |
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123 | |
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124 | for (int32_t i = nl; i < nh; i++) { |
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125 | max = key[i]; |
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126 | pos = i; |
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127 | for (int32_t j = i + 1; j <= nh; j++) { |
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128 | x = key[j]; |
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129 | if (x > max) { |
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130 | max = x; |
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131 | pos = j; |
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132 | } |
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133 | } |
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134 | key[pos] = key[i]; |
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135 | key[i] = max; |
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136 | |
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137 | tmp = index[i]; |
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138 | index[i] = index[pos]; |
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139 | index[pos] = tmp; |
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140 | } |
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141 | } |
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142 | |
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143 | void sort_index_vector_selection_min(float * key, int32_t nl, int32_t nh, int32_t * index) |
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144 | { |
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145 | int32_t pos, tmp; |
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146 | float x, min; |
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147 | |
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148 | for (int32_t i = nl; i <= nh; i++) { |
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149 | index[i] = i; |
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150 | } |
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151 | |
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152 | for (int32_t i = nl; i < nh; i++) { |
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153 | min = key[i]; |
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154 | pos = i; |
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155 | for (int32_t j = i + 1; j <= nh; j++) { |
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156 | x = key[j]; |
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157 | if (x < min) { |
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158 | min = x; |
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159 | pos = j; |
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160 | } |
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161 | } |
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162 | key[pos] = key[i]; |
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163 | key[i] = min; |
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164 | |
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165 | tmp = index[i]; |
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166 | index[i] = index[pos]; |
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167 | index[pos] = tmp; |
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168 | } |
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169 | } |
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170 | |
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171 | void sort_index_vector_selection_max(float * key, int32_t nl, int32_t nh, int32_t * index) |
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172 | { |
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173 | int32_t pos, tmp; |
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174 | float x, max; |
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175 | |
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176 | for (int32_t i = nl; i <= nh; i++) { |
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177 | index[i] = i; |
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178 | } |
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179 | |
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180 | for (int32_t i = nl; i < nh; i++) { |
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181 | max = key[i]; |
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182 | pos = i; |
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183 | for (int32_t j = i + 1; j <= nh; j++) { |
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184 | x = key[j]; |
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185 | if (x > max) { |
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186 | max = x; |
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187 | pos = j; |
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188 | } |
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189 | } |
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190 | key[pos] = key[i]; |
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191 | key[i] = max; |
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192 | |
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193 | tmp = index[i]; |
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194 | index[i] = index[pos]; |
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195 | index[pos] = tmp; |
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196 | } |
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197 | } |
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198 | |
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199 | void sort_index_vector_selection_kmin(float * key, int32_t nl, int32_t nh, int32_t * index, int32_t k) |
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200 | { |
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201 | /* |
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202 | * ATTENTION, le tableau index DOIT etre initialise |
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203 | * @QM : pourquoi est-ce commenté alors ? |
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204 | */ |
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205 | int32_t pos, tmp, il, ih; |
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206 | float x, min; |
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207 | |
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208 | il = nl; |
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209 | ih = il + k; |
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210 | |
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211 | /* |
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212 | for(int32_t i = il; i <= ih; i++) { |
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213 | index[i] = i - il; |
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214 | } |
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215 | */ |
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216 | |
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217 | for (int32_t i = il; i < ih; i++) { |
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218 | min = key[i]; |
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219 | pos = i; |
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220 | for (int32_t j = i + 1; j <= nh; j++) { |
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221 | x = key[j]; |
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222 | if (x < min) { |
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223 | min = x; |
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224 | pos = j; |
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225 | } |
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226 | } |
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227 | key[pos] = key[i]; |
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228 | key[i] = min; |
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229 | |
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230 | tmp = index[i]; |
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231 | index[i] = index[pos]; |
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232 | index[pos] = tmp; |
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233 | } |
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234 | } |
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235 | |
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236 | void sort_index_ivector_selection_kmin(int32_t * key, int32_t nl, int32_t nh, int32_t * index, int32_t k) |
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237 | { |
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238 | /* |
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239 | * ATTENTION, le tableau index DOIT etre initialise |
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240 | */ |
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241 | int32_t pos, tmp, il, ih; |
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242 | int32_t x, min; |
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243 | |
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244 | il = nl; |
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245 | ih = il + k; |
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246 | |
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247 | /* |
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248 | for(int32_t i = il; i <= ih; i++) { |
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249 | index[i] = i - il; |
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250 | } |
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251 | */ |
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252 | |
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253 | for (int32_t i = il; i < ih; i++) { |
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254 | min = key[i]; |
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255 | pos = i; |
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256 | for (int32_t j = i + 1; j <= nh; j++) { |
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257 | x = key[j]; |
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258 | if (x < min) { |
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259 | min = x; |
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260 | pos = j; |
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261 | } |
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262 | } |
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263 | key[pos] = key[i]; |
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264 | key[i] = min; |
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265 | |
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266 | tmp = index[i]; |
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267 | index[i] = index[pos]; |
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268 | index[pos] = tmp; |
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269 | } |
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270 | } |
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271 | |
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272 | void sort_index_vector_selection_kmax(float * key, int32_t nl, int32_t nh, int32_t * index, int32_t k) |
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273 | { |
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274 | /* |
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275 | * ATTENTION, le tableau index DOIT etre initialise |
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276 | */ |
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277 | int32_t pos, tmp, il, ih; |
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278 | float x, max; |
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279 | |
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280 | il = nl; |
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281 | ih = il + k; |
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282 | |
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283 | /* |
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284 | for (int32_t i = il; i <= ih; i++) { |
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285 | index[i] = i - il; |
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286 | } |
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287 | */ |
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288 | |
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289 | for (int32_t i = il; i < ih; i++) { |
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290 | max = key[i]; |
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291 | pos = i; |
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292 | for (int32_t j = i + 1; j <= nh; j++) { |
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293 | x = key[j]; |
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294 | if (x > max) { |
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295 | max = x; |
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296 | pos = j; |
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297 | } |
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298 | } |
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299 | key[pos] = key[i]; |
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300 | key[i] = max; |
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301 | |
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302 | tmp = index[i]; |
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303 | index[i] = index[pos]; |
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304 | index[pos] = tmp; |
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305 | } |
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306 | } |
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307 | |
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308 | void sort_index_ivector_selection_kmax(int32_t * key, int32_t nl, int32_t nh, int32_t * index, int32_t k) |
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309 | { |
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310 | /* |
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311 | * ATTENTION, le tableau index DOIT etre initialise |
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312 | */ |
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313 | int32_t pos, tmp, il, ih; |
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314 | int32_t x, max; |
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315 | |
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316 | il = nl; |
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317 | ih = il + k; |
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318 | |
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319 | /* |
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320 | for (int32_t i = i l; i <= ih; i++) { |
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321 | index[i] = i - il; |
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322 | } |
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323 | */ |
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324 | |
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325 | for (int32_t i = il; i < ih; i++) { |
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326 | max = key[i]; |
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327 | pos = i; |
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328 | for (int32_t j = i + 1; j <= nh; j++) { |
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329 | x = key[j]; |
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330 | if (x > max) { |
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331 | max = x; |
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332 | pos = j; |
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333 | } |
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334 | } |
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335 | key[pos] = key[i]; |
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336 | key[i] = max; |
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337 | |
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338 | tmp = index[i]; |
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339 | index[i] = index[pos]; |
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340 | index[pos] = tmp; |
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341 | } |
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342 | } |
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343 | |
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344 | |
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345 | void sort_bvector_selection_min(int8_t * v, int32_t nl, int32_t nh) |
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346 | { |
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347 | int8_t x, min; |
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348 | int32_t pos; |
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349 | |
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350 | for (int32_t i = nl; i < nh; i++) { |
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351 | min = v[i]; |
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352 | pos = i; |
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353 | for (int32_t j = i + 1; j <= nh; j++) { |
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354 | x = v[j]; |
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355 | if (x < min) { |
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356 | min = x; |
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357 | pos = j; |
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358 | } |
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359 | } |
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360 | v[pos] = v[i]; |
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361 | v[i] = min; |
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362 | } |
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363 | } |
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364 | |
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365 | int8_t select_bvector(int8_t * v, int32_t nl, int32_t nh, int32_t k) |
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366 | { |
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367 | int32_t il, ih; |
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368 | int8_t x, min, pos; |
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369 | |
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370 | il = nl; |
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371 | ih = il + k; |
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372 | |
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373 | for (int32_t i = il; i < ih; i++) { |
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374 | min = v[i]; |
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375 | pos = i; |
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376 | for (int32_t j = i + 1; j <= nh; j++) { |
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377 | x = v[j]; |
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378 | if (x < min) { |
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379 | min = x; |
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380 | pos = j; |
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381 | } |
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382 | } |
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383 | v[pos] = v[i]; |
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384 | v[i] = min; |
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385 | } |
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386 | return v[ih]; |
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387 | } |
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388 | |
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389 | rgb8 select_rgb8vector(rgb8 * v, int32_t nl, int32_t nh, int32_t k) |
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390 | { |
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391 | int32_t il, ih; |
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392 | int32_t rpos, gpos, bpos; |
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393 | |
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394 | rgb8 xi, xj; |
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395 | int8_t r, g, b; |
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396 | int8_t rmin, gmin, bmin; |
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397 | |
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398 | il = nl; |
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399 | ih = il + k; |
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400 | |
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401 | for (int32_t i = il; i < ih; i++) { |
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402 | xi = v[i]; |
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403 | rmin = xi.r; |
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404 | gmin = xi.g; |
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405 | bmin = xi.b; |
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406 | rpos = gpos = bpos = i; |
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407 | |
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408 | for (int32_t j = i + 1; j <= nh; j++) { |
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409 | xj = v[j]; |
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410 | r = xj.r; |
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411 | g = xj.g; |
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412 | b = xj.b; |
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413 | if (r < rmin) { |
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414 | rmin = r; |
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415 | rpos = j; |
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416 | } |
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417 | if (g < gmin) { |
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418 | gmin = r; |
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419 | gpos = j; |
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420 | } |
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421 | if (b < bmin) { |
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422 | bmin = r; |
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423 | bpos = j; |
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424 | } |
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425 | } |
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426 | v[rpos].r = v[i].r; |
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427 | v[i].r = rmin; |
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428 | v[rpos].g = v[i].g; |
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429 | v[i].g = gmin; |
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430 | v[rpos].b = v[i].b; |
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431 | v[i].b = bmin; |
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432 | } |
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433 | return v[ih]; |
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434 | } |
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435 | |
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436 | // Local Variables: |
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437 | // tab-width: 4 |
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438 | // c-basic-offset: 4 |
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439 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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440 | // indent-tabs-mode: nil |
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441 | // End: |
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442 | |
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443 | // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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444 | |
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