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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <unistd.h>
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5 #include <libxml/parser.h>
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6 #include "object.h"
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7 #include "sys.h"
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8 #include "xml.h"
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9
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10 #include "error.h"
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11
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12 #define ALIGN_16BYTE 16
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13
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14 extern int decode(char *cont, FILE *outfile);
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15
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16 static inline char *skip_to_number(char *cont)
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17 {
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18 if (cont == NULL) return(NULL);
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19 for (;(*cont < '+' || *cont > '9') && (*cont != '\0');cont++) {}
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20 if (*cont == '\0')
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21 {
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22 fprintf(stderr,"Content data is short\n");
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23 return(NULL);
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24 }
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25 return(cont);
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26 }
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27
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28
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29 static inline char *pickup_exponent(int *exp, char *cont)
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30 {
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70
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31 int n,value=0;
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32 float shift = 10;
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0
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33
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34 if (*cont == ',' || *cont == '\n') return(NULL);
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35
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36 for (;*cont != ',' && *cont != '\n' && *cont != '\t';cont++)
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37 {
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38 if (*cont == '-')
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39 {
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40 shift = 0.1;
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41 }
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42 else if (*cont >= '0' && *cont <= '9')
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43 {
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44 value *= 10;
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45 value += *cont - 48;
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46 }
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47 else if (*cont == '+' || *cont == ' ')
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48 {
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49 // ignore
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50 }
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51 else
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52 {
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53 fprintf(stderr,"Pick up exponent failed : %c(%d)\n",*cont,*cont);
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54 return(NULL);
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55 }
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56 }
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57
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58 for (n=0;n < value;n++) shift *= shift;
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59
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60 if (value == 0)
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61 {
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62 *exp = 1;
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63 }
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64 else
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65 {
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66 *exp = shift;
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67 }
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68 return(cont-1);
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69 }
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70
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71
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72 static inline char *pickup_float(char *cont, float *index)
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73 {
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74 int sign=1,exp=1;
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75 float shift=10,val_dec=0,val_int=0;
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76
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77 cont = skip_to_number(cont);
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78 if (cont == NULL) return(NULL);
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79
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80 for (;*cont != ',' && *cont != '\n' && *cont != '\t';cont++)
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81 {
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82 if (*cont == '-')
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83 {
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84 sign = -1;
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85 }
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86 else if (*cont == '.')
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87 {
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88 shift = 0.1;
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89 }
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90 else if (*cont >= '0' && *cont <= '9')
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91 {
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92 if (shift == 10)
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93 {
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94 val_int *= shift;
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95 val_int += *cont - 48;
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96 }
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97 else
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98 {
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99 val_dec += (*cont - 48) * shift;
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100 shift *= 0.1;
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101 }
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102 }
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103 else if (*cont == 'e' || *cont == 'E')
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104 {
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105 cont = pickup_exponent(&exp,cont+1);
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106 if (cont == NULL) return(NULL);
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107 }
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108 else if (*cont == '+' || *cont == '/' || *cont == ' ')
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109 {
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110 // ignore
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111 }
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112 else
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113 {
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114 fprintf(stderr,"Pick up float failed : %c(%d)\n",*cont,*cont);
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115 return(NULL);
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116 }
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117 }
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118
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119 *index = sign * (val_int + val_dec) * exp;
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120 cont++;
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121 return(cont);
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122 }
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123
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124
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125 static FVECTOR *get_surface_data(SURFACE *surf, xmlNodePtr cur)
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126 {
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127 int n;
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128 char *cont;
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129 float *index;
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130 FVECTOR *data[4];
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131 FILE *outfile = NULL;
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132
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133 /*
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134 data[0]: point position
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135 data[1]: point direction
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136 data[2]: point QT position
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137 data[3]: point color
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138 */
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139
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140 data[0] = (FVECTOR *)malloc(sizeof(FVECTOR)*(surf->size)*4);
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141 data[1] = data[0] + surf->size;
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142 data[2] = data[1] + surf->size;
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143 data[3] = data[2] + surf->size;
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144
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145 for (;cur;cur=cur->next)
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146 {
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147 if (!xmlStrcmp(cur->name,(xmlChar*)"coordinate"))
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148 {
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149 cont = (char *)xmlNodeGetContent(cur);
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150 for (n=0,index=(float*)data[0];n < surf->size;n++,index+=4)
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151 {
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152 cont = pickup_float(cont,index);
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153 cont = pickup_float(cont,index+1);
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154 cont = pickup_float(cont,index+2);
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155 index[3] = 1.0;
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156
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157 if (cont == NULL)
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158 {
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159 fprintf(stderr,"Analyzing surface data failed coordinate\n");
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160 return(NULL);
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161 }
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162 }
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163 }
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164 else if (!xmlStrcmp(cur->name,(xmlChar*)"normal"))
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165 {
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166 cont = (char *)xmlNodeGetContent(cur);
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167 for (n=0,index=(float*)data[1];n < surf->size;n++,index+=4)
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168 {
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169 cont = pickup_float(cont,index);
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170 cont = pickup_float(cont,index+1);
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171 cont = pickup_float(cont,index+2);
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172 index[3] = 1.0;
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173
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174 if (cont == NULL)
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175 {
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176 fprintf(stderr,"Analyzing surface data failed normal\n");
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177 return(NULL);
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178 }
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179 }
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180 }
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181 else if (!xmlStrcmp(cur->name,(xmlChar*)"model"))
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182 {
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183 cont = (char *)xmlNodeGetContent(cur);
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184 //for (n=0,index=(float*)data[2]; n < surf->size;n++,index+=4)
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185 for (n=0,index=(float*)data[2]; n < 1; n++,index+=4)
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186 {
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187 cont = pickup_float(cont,index);
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188 cont = pickup_float(cont,index+1);
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189 cont = pickup_float(cont,index+2);
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190 //cont = pickup_float(cont,index+3);
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191 index[3] = 1.0;
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192
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193 if (cont == NULL)
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194 {
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195 fprintf(stderr,"Analyzing surface data failed model\n");
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196 return(NULL);
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197 }
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198 }
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199 }
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200 else if (!xmlStrcmp(cur->name,(xmlChar*)"texture"))
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201 {
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202 cont = (char *)xmlNodeGetContent(cur);
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203 if (cont == NULL)
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204 {
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205 for (n=0,index=(float*)data[3];n < surf->size;n++,index+=4)
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206 {
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207 index[0] = 0.0;
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208 index[1] = 0.0;
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209 index[2] = 0.0;
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210 index[3] = 0.0;
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211 }
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212 }
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213 else
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214 {
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215 for (n=0,index=(float*)data[3]; n < surf->size; n++,index+=4)
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216 {
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217 cont = pickup_float(cont,index);
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218 cont = pickup_float(cont,index+1);
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219 index[2] = 1.0;
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220 index[3] = 0.0;
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221
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222 if (cont == NULL)
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223 {
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224 fprintf(stderr,"Analyzing surface data failed last\n");
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225 return(NULL);
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226 }
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227 }
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228 }
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229 }
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230 else if(!xmlStrcmp(cur->name,(xmlChar*)"image"))
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231 {
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232 surf->image_name = (char *)xmlGetProp(cur,(xmlChar *)"name");
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233 char *buf = (char*)malloc(strlen(surf->image_name)+10);
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234 buf[0] = 0;
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235 strcat(buf,"/tmp/");
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236 surf->image_name = strcat(buf, surf->image_name);
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237
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238 outfile = fopen(surf->image_name,"wb");
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239 if(NULL == outfile)
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240 {
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241 printf("error open file\n");
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242 }
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243
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244 cont = (char *)xmlNodeGetContent(cur);
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245 decode(cont, outfile);
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246 fclose(outfile);
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247 // unlink(surf->image_name);
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248 }
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249 }
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250 return(data[0]);
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251 }
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252
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253
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254 static SURFACE *create_surface_data(xmlNodePtr cur)
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255 {
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256 char *name;
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257 char *parent_name;
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258 SURFACE *surface;
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259
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260
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261 surface = (SURFACE *)malloc(sizeof(SURFACE));
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262 if (surface == NULL)
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263 {
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264 fprintf(stderr,"malloc failed at create_surface_data");
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265 return(NULL);
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266 }
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267 surface->size = atoi((char *)xmlGetProp(cur,(xmlChar *)"size"));
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268 name = (char *)xmlGetProp(cur,(xmlChar *)"name");
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269 parent_name = (char *)xmlGetProp(cur,(xmlChar *)"parent");
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270 surface->name = name;
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271 surface->parent_name = parent_name;
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272 surface->next = NULL;
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273
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274 surface->data[0] = get_surface_data(surface,cur->children);
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275 surface->data[1] = get_surface_data(surface,cur->children)+surface->size;
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276 surface->data[2] = get_surface_data(surface,cur->children)+surface->size*2;
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277 surface->data[3] = get_surface_data(surface,cur->children)+surface->size*3;
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278
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279
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280 return(surface);
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281 }
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282
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283
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284
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285 static SURFACE *get_node_point(SURFACE *surfaces, char *name)
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286 {
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287 SURFACE *list = surfaces;
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288 SURFACE *node = NULL;
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289 while(list != NULL)
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290 {
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291 if(!xmlStrcmp((xmlChar *)list->name,(xmlChar *)name))
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292 {
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293 node = list;
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294 }
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295 list = list->next;
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296 }
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297 return node;
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298 }
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299
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300
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301 static SURFACE *create_tree(SURFACE *surfaces)
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302 {
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303 SURFACE *linear_list;
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304 SURFACE *list_top = NULL;
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305 SURFACE *parent;
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306
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307 linear_list = surfaces;
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308
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309 while(linear_list != NULL)
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310 {
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311 if(xmlStrcmp((xmlChar *)linear_list->parent_name, (xmlChar *)"NULL"))
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312 {
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313 parent = get_node_point(surfaces,linear_list->parent_name);
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314 if(parent->child == NULL)
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315 {
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316 parent->child = linear_list;
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317 }
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318 else
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319 {
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320 parent->child->brother = linear_list;
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321 }
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322 linear_list->parent = parent;
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323 __debug("name = %s, parent name = %s\n",linear_list->name, linear_list->parent_name);
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324 __debug(" parent = %s\n",linear_list->parent->name);
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325 __debug(" parent->child = %s\n",linear_list->parent->child->name);
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326
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327 linear_list->child = NULL;
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328 linear_list->brother = NULL;
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329 linear_list = linear_list->next;
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330 }
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331 else
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332 {
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333 list_top = linear_list;
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334 list_top->parent = NULL;
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335 list_top->brother = NULL;
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336 list_top->child = NULL;
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337 linear_list = linear_list->next;
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338 //printf("top name = %s\n",list_top->name);
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339 }
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340 }
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341
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342 return list_top;
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343 }
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344
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345
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346 static OBJECT *create_object(xmlDocPtr doc)
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347 {
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348 char *align,*head;
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349 OBJECT *obj;
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350 SURFACE *tmp,**joint;
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351 xmlNodePtr cur;
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352
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353 cur = xmlDocGetRootElement(doc);
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354 if (cur == NULL)
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355 {
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356 fprintf(stderr,"XML file is empty\n");
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357 return(NULL);
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358 }
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359
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360 if (xmlStrcmp(cur->name,(xmlChar*)"OBJECT-3D"))
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361 {
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362 fprintf(stderr,"This data format isn't OBJECT-3D\n");
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363 return(NULL);
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364 }
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365
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366 if (malloc_align16(&head,&align,sizeof(OBJECT)) < 0)
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367 {
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368 fprintf(stderr,"malloc failed at create_object : OBJECT\n");
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369 return(NULL);
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370 }
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371
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372 obj = (OBJECT *)align;
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373 obj->free_me = head;
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374 init_object(obj);
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375
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376 obj->surfaces = NULL;
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377 joint = &(obj->surfaces);
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378
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379 for (cur=cur->children; cur; cur=cur->next)
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380 {
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381 if (!xmlStrcmp(cur->name,(xmlChar*)"surface"))
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382 {
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383 tmp = create_surface_data(cur);
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384 if (tmp == NULL)
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385 {
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386 printf("temp is NULL\n");
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387 free_object(obj);
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388 return(NULL);
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389 }
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390 *joint = tmp;
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391 joint = &(tmp->next);
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392 }
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393 }
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394
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395 obj->surfaces = create_tree(obj->surfaces);
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396
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397 return(obj);
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398 }
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399
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400
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401 //static int read_xml_3d_file(const char *file_name)
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402 OBJECT *read_xml_3d_file(const char *file_name)
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403 {
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404 xmlDocPtr doc;
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405 OBJECT *ptr;
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406
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407 doc = xmlParseFile(file_name);
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408 if(doc == NULL)
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409 {
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410 printf("It seems that %s is not a xml data.\n", file_name);
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411 }
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412
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413 ptr = create_object(doc);
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414 if(ptr == NULL)
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415 {
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416 printf("XML create_object failed : %s\n",file_name);
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417 }
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418
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419 xmlFreeDoc(doc);
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420 return(ptr);
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421 }
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