annotate Meerwald/param_stuff.c @ 11:a5249f7d45f7

improve cmp_ppm usage help
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Thu, 01 May 2008 18:19:13 +0200
parents f83ef905a63d
children
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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1 #ifdef PARAM_STUFF
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2 {
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3 #define MAXNALPHA 32
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4
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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5 double alpha[MAXNALPHA];
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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6 char *alpha_str = getenv("PARAM_ALPHA");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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7 double alpha_value;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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8 int alpha_len = 0;
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9
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10 int param_len[MAXNALPHA];
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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11 char *param_len_str = getenv("PARAM_LEN");
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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12 int param_len_value;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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13 int param_len_len = 0;
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14 int param_len_sum = 0;
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15
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16 char buf[1024] = "";
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17 char *v;
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18
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19
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20 if (alpha_str && strlen(alpha_str) < sizeof(buf)
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21 && strcmp(alpha_str, "") ) {
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22
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23 strcpy(buf, alpha_str);
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24
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25 v = strtok(buf, "\",; ");
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26 do {
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27
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28 alpha_value = atof(v);
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29
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30 if (alpha_value < -M_PI || alpha_value >= M_PI) {
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31 fprintf(stderr, "%s: parametric - alpha %f out of range\n",
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32 progname, alpha_value);
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33 exit(1);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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34 }
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35
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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36 alpha[alpha_len] = alpha_value;
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37 alpha_len++;
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38 } while ((v = strtok(NULL, "\",; ")));
3
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39
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40
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41 if( param_len_str && strlen(param_len_str) < sizeof(buf)
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42 && strcmp(param_len_str, "") ) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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43 /* There was an parameter length environment variable. */
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44
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45 strcpy(buf, param_len_str);
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46
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47 v = strtok(buf, "\",; ");
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48 do {
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49
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50 param_len_value = atoi(v);
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51
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52 if (param_len_value <= 0) {
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53 fprintf(stderr, "%s: parameter length %d out of range\n",
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54 progname, param_len_value);
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55 exit(1);
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56 }
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57
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58 param_len[param_len_len] = param_len_value;
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59 param_len_len++;
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60 param_len_sum += param_len_value;
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61
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62 } while ((v = strtok(NULL, "\",; ")));
3
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63
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64 } else {
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65 /* No length variable given.
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66 For backward compatability we use all parameters for
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67 one filter and therefore for all levels.
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68 */
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69
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70 param_len[0] = alpha_len;
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71 param_len_len = 1;
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72 param_len_sum = alpha_len;
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73 }
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74
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75
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76 /* If we do not get a parameter length value for every
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77 decomposition level then we reuse the last supplied value
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78 for the remaining levels.
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79 */
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80 if (param_len_len < level+1) {
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81 int last_param_len = param_len[ param_len_len - 1 ];
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82
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83 for(; param_len_len < level+1; param_len_len++ ) {
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84 param_len[ param_len_len ] = last_param_len;
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85 param_len_sum += last_param_len;
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86 }
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87 }
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88
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89
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90 /* If the number of supplied alphas is lower than is required
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91 for by param_len then copy the last filter
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92 parameters to the remaining levels.
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93 */
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94 if( alpha_len < param_len_sum ) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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95 int i;
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96 int last_param_len = param_len[ param_len_len - 1 ];
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97 int last_start = alpha_len - last_param_len;
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98
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99 for( i=0; alpha_len < param_len_sum; alpha_len++, i++ ) {
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100 alpha[ alpha_len ] = alpha[ last_start + (i % last_param_len) ];
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101 }
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102 }
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103
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104 if (verbose > 1) {
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105 int i, j;
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106 int cur_sum = 0;
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107
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108 fprintf(stderr, "%s: parametric, number of levels: %d\n",
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109 progname, level);
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110
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111 for (i = 0; i < level+1; i++) {
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112
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113 fprintf(stderr, " %d filter parameters for level %d: ",
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114 param_len[i], i);
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115
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116 for (j = 0; j < param_len[i]; j++) {
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117 fprintf(stderr, "%f ", alpha[cur_sum + j]);
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118 }
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119
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120 fprintf(stderr, "\n");
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121
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122 cur_sum += param_len[i];
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123 }
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124 }
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125
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126
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127 dwt_param_filter(alpha, param_len);
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128
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129
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130 } /* if( alpha_str... */
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131 }
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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132 #endif
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133

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