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1 #include "foobar2000-sdk-pch.h"
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2
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3 #include "file_info_const_impl.h"
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4
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5 // presorted - do not change without a proper strcmp resort
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6 static const char * const standard_fieldnames[] = {
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7 "ALBUM","ALBUM ARTIST","ARTIST","Album","Album Artist","Artist","COMMENT","Comment","DATE","DISCNUMBER","Date",
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8 "Discnumber","GENRE","Genre","TITLE","TOTALTRACKS","TRACKNUMBER","Title","TotalTracks","Totaltracks","TrackNumber",
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9 "Tracknumber","album","album artist","artist","comment","date","discnumber","genre","title","totaltracks","tracknumber",
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10 };
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11
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12 // presorted - do not change without a proper strcmp resort
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13 static const char * const standard_infonames[] = {
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14 "bitrate","bitspersample","channels","codec","codec_profile","encoding","samplerate","tagtype","tool",
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15 };
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16
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17 static const char * optimize_fieldname(const char * p_string) {
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18 t_size index;
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19 if (!pfc::binarySearch<pfc::comparator_strcmp>::run(standard_fieldnames,0,PFC_TABSIZE(standard_fieldnames),p_string,index)) return NULL;
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20 return standard_fieldnames[index];
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21 }
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22
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23 static const char * optimize_infoname(const char * p_string) {
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24 t_size index;
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25 if (!pfc::binarySearch<pfc::comparator_strcmp>::run(standard_infonames,0,PFC_TABSIZE(standard_infonames),p_string,index)) return NULL;
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26 return standard_infonames[index];
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27 }
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28
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29 /*
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30 order of things
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31
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32 meta entries
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33 meta value map
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34 info entries
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35 string buffer
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36
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37 */
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38
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39 inline static char* stringbuffer_append(char * & buffer,const char * value)
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40 {
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41 char * ret = buffer;
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42 while(*value) *(buffer++) = *(value++);
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43 *(buffer++) = 0;
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44 return ret;
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45 }
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46
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47 #ifdef __file_info_const_impl_have_hintmap__
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48
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49 namespace {
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50 class sort_callback_hintmap_impl : public pfc::sort_callback
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51 {
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52 public:
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53 sort_callback_hintmap_impl(const file_info_const_impl::meta_entry * p_meta,file_info_const_impl::t_index * p_hintmap)
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54 : m_meta(p_meta), m_hintmap(p_hintmap)
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55 {
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56 }
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57
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58 int compare(t_size p_index1, t_size p_index2) const
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59 {
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60 // profiler(sort_callback_hintmap_impl_compare);
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61 return pfc::stricmp_ascii(m_meta[m_hintmap[p_index1]].m_name,m_meta[m_hintmap[p_index2]].m_name);
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62 }
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63
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64 void swap(t_size p_index1, t_size p_index2)
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65 {
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66 pfc::swap_t<file_info_const_impl::t_index>(m_hintmap[p_index1],m_hintmap[p_index2]);
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67 }
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68 private:
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69 const file_info_const_impl::meta_entry * m_meta;
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70 file_info_const_impl::t_index * m_hintmap;
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71 };
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72
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73 class bsearch_callback_hintmap_impl// : public pfc::bsearch_callback
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74 {
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75 public:
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76 bsearch_callback_hintmap_impl(
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77 const file_info_const_impl::meta_entry * p_meta,
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78 const file_info_const_impl::t_index * p_hintmap,
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79 const char * p_name,
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80 t_size p_name_length)
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81 : m_meta(p_meta), m_hintmap(p_hintmap), m_name(p_name), m_name_length(p_name_length)
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82 {
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83 }
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84
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85 inline int test(t_size p_index) const
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86 {
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87 return pfc::stricmp_ascii_ex(m_meta[m_hintmap[p_index]].m_name,SIZE_MAX,m_name,m_name_length);
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88 }
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89
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90 private:
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91 const file_info_const_impl::meta_entry * m_meta;
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92 const file_info_const_impl::t_index * m_hintmap;
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93 const char * m_name;
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94 t_size m_name_length;
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95 };
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96 }
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97
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98 #endif//__file_info_const_impl_have_hintmap__
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99
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100 void file_info_const_impl::copy(const file_info & p_source)
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101 {
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102 // profiler(file_info_const_impl__copy);
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103 t_size meta_size = 0;
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104 t_size info_size = 0;
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105 t_size valuemap_size = 0;
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106 t_size stringbuffer_size = 0;
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107 #ifdef __file_info_const_impl_have_hintmap__
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108 t_size hintmap_size = 0;
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109 #endif
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110
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111 const char * optbuf[64];
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112 size_t optwalk = 0;
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113
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114 {
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115 // profiler(file_info_const_impl__copy__pass1);
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116 t_size index;
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117 m_meta_count = pfc::downcast_guarded<t_index>(p_source.meta_get_count());
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118 meta_size = m_meta_count * sizeof(meta_entry);
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119 #ifdef __file_info_const_impl_have_hintmap__
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120 hintmap_size = (m_meta_count > hintmap_cutoff) ? m_meta_count * sizeof(t_index) : 0;
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121 #endif//__file_info_const_impl_have_hintmap__
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122 for(index = 0; index < m_meta_count; index++ )
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123 {
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124 {
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125 const char * name = p_source.meta_enum_name(index);
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126 const char * opt = optimize_fieldname(name);
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127 if (optwalk < PFC_TABSIZE(optbuf)) optbuf[optwalk++] = opt;
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128 if (opt == NULL) stringbuffer_size += strlen(name) + 1;
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129 }
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130
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131 t_size val; const t_size val_max = p_source.meta_enum_value_count(index);
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132
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133 if (val_max == 1)
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134 {
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135 stringbuffer_size += strlen(p_source.meta_enum_value(index,0)) + 1;
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136 }
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137 else
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138 {
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139 valuemap_size += val_max * sizeof(char*);
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140
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141 for(val = 0; val < val_max; val++ )
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142 {
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143 stringbuffer_size += strlen(p_source.meta_enum_value(index,val)) + 1;
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144 }
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145 }
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146 }
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147
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148 m_info_count = pfc::downcast_guarded<t_index>(p_source.info_get_count());
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149 info_size = m_info_count * sizeof(info_entry);
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150 for(index = 0; index < m_info_count; index++ )
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151 {
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152 const char * name = p_source.info_enum_name(index);
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153 const char * opt = optimize_infoname(name);
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154 if (optwalk < PFC_TABSIZE(optbuf)) optbuf[optwalk++] = opt;
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155 if (opt == NULL) stringbuffer_size += strlen(name) + 1;
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156 stringbuffer_size += strlen(p_source.info_enum_value(index)) + 1;
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157 }
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158 }
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159
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160
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161 {
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162 // profiler(file_info_const_impl__copy__alloc);
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163 m_buffer.set_size(
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164 #ifdef __file_info_const_impl_have_hintmap__
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165 hintmap_size +
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166 #endif
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167 meta_size + info_size + valuemap_size + stringbuffer_size);
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168 }
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169
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170 char * walk = m_buffer.get_ptr();
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171
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172 #ifdef __file_info_const_impl_have_hintmap__
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173 t_index* hintmap = (hintmap_size > 0) ? (t_index*) walk : NULL;
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174 walk += hintmap_size;
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175 #endif
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176 meta_entry * meta = (meta_entry*) walk;
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177 walk += meta_size;
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178 char ** valuemap = (char**) walk;
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179 walk += valuemap_size;
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180 info_entry * info = (info_entry*) walk;
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181 walk += info_size;
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182 char * stringbuffer = walk;
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183
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184 m_meta = meta;
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185 m_info = info;
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186 #ifdef __file_info_const_impl_have_hintmap__
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187 m_hintmap = hintmap;
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188 #endif
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189
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190 optwalk = 0;
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191 {
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192 // profiler(file_info_const_impl__copy__pass2);
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193 t_size index;
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194 for( index = 0; index < m_meta_count; index ++ )
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195 {
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196 t_size val; const t_size val_max = p_source.meta_enum_value_count(index);
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197
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198 {
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199 const char * name = p_source.meta_enum_name(index);
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200 const char * name_opt;
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201
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202 if (optwalk < PFC_TABSIZE(optbuf)) name_opt = optbuf[optwalk++];
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203 else name_opt = optimize_fieldname(name);
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204
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205 if (name_opt == NULL)
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206 meta[index].m_name = stringbuffer_append(stringbuffer, name );
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207 else
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208 meta[index].m_name = name_opt;
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209 }
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210
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211 meta[index].m_valuecount = val_max;
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212
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213 if (val_max == 1)
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214 {
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215 meta[index].m_valuemap = reinterpret_cast<const char * const *>(stringbuffer_append(stringbuffer, p_source.meta_enum_value(index,0) ));
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216 }
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217 else
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218 {
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219 meta[index].m_valuemap = valuemap;
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220 for( val = 0; val < val_max ; val ++ )
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221 *(valuemap ++ ) = stringbuffer_append(stringbuffer, p_source.meta_enum_value(index,val) );
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222 }
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223 }
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224
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225 for( index = 0; index < m_info_count; index ++ )
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226 {
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227 const char * name = p_source.info_enum_name(index);
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228 const char * name_opt;
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229
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230 if (optwalk < PFC_TABSIZE(optbuf)) name_opt = optbuf[optwalk++];
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231 else name_opt = optimize_infoname(name);
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232
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233 if (name_opt == NULL)
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234 info[index].m_name = stringbuffer_append(stringbuffer, name );
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235 else
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236 info[index].m_name = name_opt;
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237 info[index].m_value = stringbuffer_append(stringbuffer, p_source.info_enum_value(index) );
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238 }
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239 }
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240
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241 m_length = p_source.get_length();
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242 m_replaygain = p_source.get_replaygain();
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243 #ifdef __file_info_const_impl_have_hintmap__
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244 if (hintmap != NULL) {
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245 // profiler(file_info_const_impl__copy__hintmap);
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246 for(t_size n=0;n<m_meta_count;n++) hintmap[n]= (t_index) n;
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247 sort_callback_hintmap_impl cb(meta,hintmap);
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248 pfc::sort(cb,m_meta_count);
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249 }
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250 #endif//__file_info_const_impl_have_hintmap__
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251 }
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252
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253
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254 void file_info_const_impl::reset()
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255 {
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256 m_meta_count = m_info_count = 0; m_length = 0; m_replaygain.reset();
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257 }
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258
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259 t_size file_info_const_impl::meta_find_ex(const char * p_name,t_size p_name_length) const
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260 {
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261 #ifdef __file_info_const_impl_have_hintmap__
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262 if (m_hintmap != NULL) {
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263 t_size result = SIZE_MAX;
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264 if (!pfc::bsearch_inline_t(m_meta_count,bsearch_callback_hintmap_impl(m_meta,m_hintmap,p_name,p_name_length),result)) return SIZE_MAX;
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265 else return m_hintmap[result];
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266 } else {
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267 return file_info::meta_find_ex(p_name,p_name_length);
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268 }
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269 #else
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270 return file_info::meta_find_ex(p_name,p_name_length);
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271 #endif
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272 }
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273
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274
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275 t_size file_info_const_impl::meta_enum_value_count(t_size p_index) const
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276 {
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277 return m_meta[p_index].m_valuecount;
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278 }
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279
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280 const char* file_info_const_impl::meta_enum_value(t_size p_index,t_size p_value_number) const
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281 {
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282 const meta_entry & entry = m_meta[p_index];
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283 if (entry.m_valuecount == 1)
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284 return reinterpret_cast<const char*>(entry.m_valuemap);
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285 else
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286 return entry.m_valuemap[p_value_number];
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287 }
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