1 | // =============================================================== // |
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2 | // // |
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3 | // File : AP_filter.cxx // |
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4 | // Purpose : // |
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5 | // // |
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6 | // Institute of Microbiology (Technical University Munich) // |
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7 | // http://www.arb-home.de/ // |
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8 | // // |
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9 | // =============================================================== // |
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10 | |
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11 | #include "AP_filter.hxx" |
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12 | #include <arbdb.h> |
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13 | |
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14 | // ------------------ |
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15 | // AP_filter |
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16 | |
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17 | void AP_filter::init(size_t size) { |
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18 | filter_mask = new bool[size]; |
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19 | filter_len = size; |
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20 | real_len = 0; |
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21 | update = AP_timer(); |
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22 | simplify_type = AWT_FILTER_SIMPLIFY_NOT_INITIALIZED; |
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23 | simplify[0] = 0; // silence cppcheck-warning |
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24 | bootstrap = NULp; |
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25 | filterpos_2_seqpos = NULp; |
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26 | |
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27 | #if defined(ASSERTION_USED) |
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28 | checked_for_validity = false; |
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29 | #endif |
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30 | } |
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31 | |
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32 | void AP_filter::make_permeable(size_t size) { |
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33 | init(size); |
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34 | real_len = filter_len; |
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35 | for (size_t i = 0; i < size; i++) filter_mask[i] = true; |
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36 | } |
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37 | |
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38 | void AP_filter::init_from_string(const char *ifilter, const char *zerobases, size_t size) { |
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39 | init(size); |
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40 | |
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41 | bool char2mask[256]; |
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42 | size_t i; |
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43 | |
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44 | for (i = 0; i<256; ++i) char2mask[i] = true; |
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45 | if (zerobases) { |
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46 | for (i = 0; zerobases[i]; ++i) char2mask[safeCharIndex(zerobases[i])] = false; |
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47 | } |
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48 | else { |
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49 | char2mask['0'] = false; |
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50 | } |
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51 | |
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52 | real_len = 0; |
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53 | for (i = 0; i < size && ifilter[i]; ++i) { |
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54 | real_len += int(filter_mask[i] = char2mask[safeCharIndex(ifilter[i])]); |
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55 | } |
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56 | for (; i < size; i++) { |
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57 | filter_mask[i] = true; |
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58 | real_len++; |
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59 | } |
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60 | } |
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61 | |
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62 | |
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63 | AP_filter::AP_filter(size_t size) { |
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64 | make_permeable(size); |
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65 | } |
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66 | |
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67 | AP_filter::AP_filter(const AP_filter& other) |
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68 | : filter_mask(new bool[other.filter_len]), |
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69 | filter_len(other.filter_len), |
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70 | real_len(other.real_len), |
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71 | update(other.update), |
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72 | simplify_type(other.simplify_type), |
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73 | bootstrap(NULp), |
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74 | filterpos_2_seqpos(NULp) |
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75 | { |
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76 | memcpy(filter_mask, other.filter_mask, filter_len*sizeof(*filter_mask)); |
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77 | memcpy(simplify, other.simplify, sizeof(simplify)*sizeof(*simplify)); |
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78 | if (other.bootstrap) { |
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79 | bootstrap = new size_t[real_len]; |
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80 | memcpy(bootstrap, other.bootstrap, real_len*sizeof(*bootstrap)); |
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81 | } |
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82 | if (other.filterpos_2_seqpos) { |
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83 | filterpos_2_seqpos = new size_t[real_len]; |
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84 | memcpy(filterpos_2_seqpos, other.filterpos_2_seqpos, real_len*sizeof(*filterpos_2_seqpos)); |
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85 | } |
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86 | #if defined(ASSERTION_USED) |
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87 | checked_for_validity = other.checked_for_validity; |
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88 | #endif |
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89 | } |
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90 | |
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91 | |
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92 | |
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93 | AP_filter::AP_filter(const char *ifilter, const char *zerobases, size_t size) { |
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94 | if (!ifilter || !*ifilter) { |
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95 | make_permeable(size); |
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96 | } |
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97 | else { |
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98 | init_from_string(ifilter, zerobases, size); |
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99 | } |
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100 | } |
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101 | |
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102 | AP_filter::AP_filter(AF_Not, const AP_filter& other) { |
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103 | size_t size = other.get_length(); |
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104 | const bool *omask = other.filter_mask; |
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105 | |
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106 | init(size); |
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107 | for (size_t i = 0; i < size; i++) { |
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108 | real_len += (filter_mask[i] = !omask[i]); |
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109 | } |
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110 | } |
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111 | |
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112 | AP_filter::AP_filter(const AP_filter& f1, AF_Combine comb, const AP_filter& f2) { |
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113 | size_t size = f1.get_length(); |
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114 | af_assert(size == f2.get_length()); |
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115 | |
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116 | init(size); |
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117 | |
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118 | const bool *m1 = f1.filter_mask; |
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119 | const bool *m2 = f2.filter_mask; |
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120 | |
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121 | switch (comb) { |
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122 | case AND: |
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123 | for (size_t i = 0; i<size; ++i) { |
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124 | real_len += (filter_mask[i] = (m1[i] && m2[i])); |
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125 | } |
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126 | break; |
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127 | case OR: |
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128 | for (size_t i = 0; i<size; ++i) { |
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129 | real_len += (filter_mask[i] = (m1[i] || m2[i])); |
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130 | } |
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131 | break; |
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132 | case XOR: |
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133 | for (size_t i = 0; i<size; ++i) { |
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134 | real_len += (filter_mask[i] = (m1[i] ^ m2[i])); |
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135 | } |
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136 | break; |
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137 | } |
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138 | } |
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139 | |
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140 | AP_filter::~AP_filter() { |
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141 | delete [] bootstrap; |
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142 | delete [] filter_mask; |
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143 | delete [] filterpos_2_seqpos; |
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144 | } |
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145 | |
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146 | char *AP_filter::to_string() const { |
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147 | af_assert(checked_for_validity); |
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148 | |
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149 | char *data = ARB_alloc<char>(filter_len+1); |
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150 | |
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151 | for (size_t i=0; i<filter_len; ++i) { |
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152 | data[i] = "01"[filter_mask[i]]; |
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153 | } |
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154 | data[filter_len] = 0; |
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155 | |
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156 | return data; |
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157 | } |
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158 | |
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159 | |
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160 | void AP_filter::enable_simplify(AWT_FILTER_SIMPLIFY type) { |
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161 | if (type != simplify_type) { |
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162 | int i; |
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163 | for (i=0; i<32; i++) { |
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164 | simplify[i] = '.'; |
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165 | } |
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166 | for (; i<256; i++) { // LOOP_VECTORIZED // tested down to gcc 5.5.0 (may fail on older gcc versions) |
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167 | simplify[i] = i; |
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168 | } |
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169 | switch (type) { |
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170 | case AWT_FILTER_SIMPLIFY_DNA: |
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171 | simplify[(unsigned char)'g'] = 'a'; |
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172 | simplify[(unsigned char)'G'] = 'A'; |
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173 | simplify[(unsigned char)'u'] = 'c'; |
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174 | simplify[(unsigned char)'t'] = 'c'; |
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175 | simplify[(unsigned char)'U'] = 'C'; |
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176 | simplify[(unsigned char)'T'] = 'C'; |
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177 | break; |
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178 | case AWT_FILTER_SIMPLIFY_PROTEIN: |
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179 | af_assert(0); // not implemented or impossible!? |
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180 | break; |
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181 | case AWT_FILTER_SIMPLIFY_NONE: |
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182 | break; |
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183 | default: |
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184 | af_assert(0); |
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185 | break; |
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186 | } |
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187 | |
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188 | simplify_type = type; |
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189 | } |
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190 | } |
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191 | |
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192 | void AP_filter::calc_filterpos_2_seqpos() { |
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193 | af_assert(checked_for_validity); |
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194 | af_assert(real_len>0); |
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195 | |
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196 | delete [] filterpos_2_seqpos; |
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197 | filterpos_2_seqpos = new size_t[real_len]; |
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198 | size_t i, j; |
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199 | for (i=j=0; i<filter_len; ++i) { |
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200 | if (filter_mask[i]) { |
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201 | filterpos_2_seqpos[j++] = i; |
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202 | } |
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203 | } |
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204 | } |
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205 | |
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206 | void AP_filter::enable_bootstrap() { |
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207 | af_assert(checked_for_validity); |
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208 | af_assert(real_len>0); |
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209 | |
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210 | delete [] bootstrap; |
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211 | bootstrap = new size_t[real_len]; |
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212 | |
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213 | af_assert(filter_len < RAND_MAX); |
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214 | |
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215 | for (size_t i = 0; i<real_len; ++i) { |
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216 | int r = GB_random(real_len); |
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217 | af_assert(r >= 0); // otherwise overflow in random number generator |
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218 | bootstrap[i] = r; |
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219 | } |
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220 | } |
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221 | |
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222 | char *AP_filter::blowup_string(const char *filtered_string, char fillChar) const { |
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223 | /*! blow up 'filtered_string' to unfiltered length |
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224 | * by inserting 'fillChar' at filtered positions |
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225 | */ |
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226 | af_assert(checked_for_validity); |
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227 | |
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228 | char *blownup = ARB_alloc<char>(filter_len+1); |
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229 | size_t f = 0; |
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230 | |
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231 | for (size_t i = 0; i<filter_len; ++i) { |
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232 | blownup[i] = use_position(i) ? filtered_string[f++] : fillChar; |
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233 | } |
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234 | blownup[filter_len] = 0; |
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235 | |
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236 | return blownup; |
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237 | } |
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238 | |
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239 | char *AP_filter::filter_string(const char *fulllen_string) const { |
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240 | /*! filter given 'fulllen_string' |
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241 | */ |
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242 | |
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243 | af_assert(checked_for_validity); |
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244 | |
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245 | char *filtered = ARB_alloc<char>(real_len+1); |
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246 | size_t f = 0; |
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247 | |
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248 | get_filterpos_2_seqpos(); // create if missing |
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249 | for (size_t i = 0; i<real_len; ++i) { |
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250 | size_t p = filterpos_2_seqpos[i]; |
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251 | filtered[f++] = fulllen_string[p]; |
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252 | } |
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253 | filtered[f] = 0; |
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254 | |
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255 | return filtered; |
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256 | } |
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257 | |
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258 | // ------------------- |
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259 | // AP_weights |
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260 | |
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261 | AP_weights::AP_weights(const AP_filter *fil) |
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262 | : len(fil->get_filtered_length()), |
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263 | weights(NULp) |
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264 | { |
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265 | } |
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266 | |
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267 | AP_weights::AP_weights(const GB_UINT4 *w, size_t wlen, const AP_filter *fil) |
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268 | : len(fil->get_filtered_length()), |
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269 | weights(NULp) |
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270 | { |
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271 | ARB_alloc_aligned(weights, len); |
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272 | |
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273 | af_assert(wlen == fil->get_length()); |
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274 | |
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275 | size_t i, j; |
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276 | for (j=i=0; j<wlen; ++j) { |
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277 | if (fil->use_position(j)) { |
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278 | weights[i++] = w[j]; |
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279 | } |
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280 | } |
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281 | af_assert(j <= fil->get_length()); |
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282 | af_assert(i == fil->get_filtered_length()); |
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283 | } |
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284 | |
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285 | AP_weights::AP_weights(const AP_weights& other) |
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286 | : len(other.len), |
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287 | weights(NULp) |
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288 | { |
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289 | if (other.weights) { |
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290 | ARB_alloc_aligned(weights, len); |
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291 | memcpy(weights, other.weights, len*sizeof(*weights)); |
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292 | } |
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293 | } |
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294 | |
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295 | AP_weights::~AP_weights() { |
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296 | free(weights); |
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297 | } |
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298 | |
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299 | long AP_timer() { |
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300 | static long time = 0; |
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301 | return ++time; |
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302 | } |
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303 | |
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304 | |
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305 | // -------------------------------------------------------------------------------- |
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306 | |
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307 | #ifdef UNIT_TESTS |
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308 | #ifndef TEST_UNIT_H |
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309 | #include <test_unit.h> |
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310 | #endif |
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311 | |
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312 | #define TEST_EXPECT_EQUAL_FILTERS(f1,f2) do{ \ |
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313 | TEST_EXPECT_NO_ERROR((f1).is_invalid()); \ |
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314 | TEST_EXPECT_NO_ERROR((f2).is_invalid()); \ |
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315 | char *m1 = (f1).to_string(); \ |
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316 | char *m2 = (f2).to_string(); \ |
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317 | TEST_EXPECT_EQUAL(m1, m2); \ |
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318 | free(m2); \ |
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319 | free(m1); \ |
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320 | }while(0) |
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321 | |
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322 | void TEST_filter() { |
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323 | const int LEN = 20; |
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324 | const int MASK_BITCOUNT = 9; |
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325 | const char *mask = "01100001110000110011"; |
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326 | const char *mask_inv = "10011110001111001100"; |
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327 | const char *mask_some = "00100101100101011001"; |
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328 | const char *seq = "MSKTAYTKVLFDRGSALDGK"; |
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329 | const char *seq_masked = "SK" "KVL" "SA""GK"; |
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330 | const char *blow_mask = "_SK____KVL____SA__GK"; |
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331 | const char *seq_masked_inv = "M""TAYT" "FDRG""LD"; |
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332 | const char *blow_mask_inv = "M__TAYT___FDRG__LD__"; |
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333 | |
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334 | AP_filter f1(LEN); |
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335 | AP_filter f2(mask, "0", LEN); |
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336 | AP_filter n2(mask, "1", LEN); |
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337 | AP_filter f3(mask_inv, "0", LEN); |
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338 | AP_filter n3(mask_inv, "1", LEN); |
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339 | |
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340 | TEST_EXPECT_EQUAL(f1.get_length(), LEN); |
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341 | TEST_EXPECT_EQUAL(f2.get_length(), LEN); |
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342 | TEST_EXPECT_EQUAL(f3.get_length(), LEN); |
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343 | TEST_EXPECT_EQUAL(n2.get_length(), LEN); |
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344 | TEST_EXPECT_EQUAL(n3.get_length(), LEN); |
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345 | |
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346 | TEST_EXPECT_EQUAL(f1.get_filtered_length(), LEN); |
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347 | TEST_EXPECT_EQUAL(f2.get_filtered_length(), MASK_BITCOUNT); |
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348 | TEST_EXPECT_EQUAL(f3.get_filtered_length(), LEN-MASK_BITCOUNT); |
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349 | TEST_EXPECT_EQUAL(n2.get_filtered_length(), LEN-MASK_BITCOUNT); |
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350 | TEST_EXPECT_EQUAL(n3.get_filtered_length(), MASK_BITCOUNT); |
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351 | |
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352 | TEST_EXPECT_NO_ERROR(f1.is_invalid()); |
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353 | TEST_EXPECT_NO_ERROR(f2.is_invalid()); |
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354 | TEST_EXPECT_NO_ERROR(f3.is_invalid()); |
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355 | TEST_EXPECT_NO_ERROR(n2.is_invalid()); |
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356 | TEST_EXPECT_NO_ERROR(n3.is_invalid()); |
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357 | |
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358 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f1.to_string(), "11111111111111111111"); |
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359 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f2.to_string(), mask); |
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360 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f3.to_string(), mask_inv); |
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361 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n2.to_string(), mask_inv); |
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362 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n3.to_string(), mask); |
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363 | |
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364 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f1.filter_string(seq), seq); |
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365 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f2.filter_string(seq), seq_masked); |
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366 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f3.filter_string(seq), seq_masked_inv); |
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367 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n2.filter_string(seq), seq_masked_inv); |
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368 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(n3.filter_string(seq), seq_masked); |
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369 | |
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370 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f1.blowup_string(seq, '_'), seq); |
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371 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f2.blowup_string(seq_masked, '_'), blow_mask); |
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372 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(f3.blowup_string(seq_masked_inv, '_'), blow_mask_inv); |
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373 | |
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374 | // test inverting filters: |
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375 | AP_filter i2(NOT, f2); |
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376 | AP_filter i3(NOT, f3); |
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377 | |
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378 | TEST_EXPECT_EQUAL_FILTERS(i2, n2); |
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379 | TEST_EXPECT_EQUAL_FILTERS(i3, n3); |
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380 | |
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381 | // test filter combination (AND + OR): |
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382 | AP_filter s2(mask_some, "0", LEN); |
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383 | AP_filter s3(NOT, s2); |
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384 | |
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385 | AP_filter as23(s2, AND, s3); |
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386 | AP_filter os23(s2, OR, s3); |
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387 | |
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388 | TEST_EXPECT_ERROR_CONTAINS(as23.is_invalid(), "Sequence completely filtered out (no columns left)"); |
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389 | |
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390 | TEST_EXPECT_EQUAL(as23.get_filtered_length(), 0); |
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391 | TEST_EXPECT_EQUAL(os23.get_filtered_length(), LEN); |
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392 | |
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393 | AP_filter fs22(f2, AND, s2); |
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394 | AP_filter fs23(f2, AND, s3); |
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395 | AP_filter o2223(fs22, OR, fs23); |
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396 | |
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397 | TEST_EXPECT_EQUAL_FILTERS(o2223, f2); |
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398 | |
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399 | AP_filter x(fs22, XOR, fs23); |
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400 | AP_filter xa1(AP_filter(fs22, AND, AP_filter(NOT, fs23)), OR, AP_filter(AP_filter(NOT, fs22), AND, fs23)); // = (a&&!b) || (!a&&b) |
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401 | AP_filter xa2(AP_filter(fs22, OR, fs23), AND, AP_filter(NOT, AP_filter(fs22, AND, fs23))); // = (a||b) && !(a&&b) |
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402 | |
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403 | TEST_EXPECT_EQUAL_FILTERS(x, xa1); |
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404 | TEST_EXPECT_EQUAL_FILTERS(x, xa2); |
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405 | |
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406 | TEST_EXPECT_EQUAL_STRINGCOPY__NOERROREXPORTED(x.to_string(), mask); |
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407 | } |
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408 | |
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409 | #endif // UNIT_TESTS |
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410 | |
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411 | // -------------------------------------------------------------------------------- |
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