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comparison foosdk/sdk/foobar2000/SDK/file_info_const_impl.cpp @ 1:20d02a178406 default tip

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*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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0:e9bb126753e7 1:20d02a178406
1 #include "foobar2000-sdk-pch.h"
2
3 #include "file_info_const_impl.h"
4
5 // presorted - do not change without a proper strcmp resort
6 static const char * const standard_fieldnames[] = {
7 "ALBUM","ALBUM ARTIST","ARTIST","Album","Album Artist","Artist","COMMENT","Comment","DATE","DISCNUMBER","Date",
8 "Discnumber","GENRE","Genre","TITLE","TOTALTRACKS","TRACKNUMBER","Title","TotalTracks","Totaltracks","TrackNumber",
9 "Tracknumber","album","album artist","artist","comment","date","discnumber","genre","title","totaltracks","tracknumber",
10 };
11
12 // presorted - do not change without a proper strcmp resort
13 static const char * const standard_infonames[] = {
14 "bitrate","bitspersample","channels","codec","codec_profile","encoding","samplerate","tagtype","tool",
15 };
16
17 static const char * optimize_fieldname(const char * p_string) {
18 t_size index;
19 if (!pfc::binarySearch<pfc::comparator_strcmp>::run(standard_fieldnames,0,PFC_TABSIZE(standard_fieldnames),p_string,index)) return NULL;
20 return standard_fieldnames[index];
21 }
22
23 static const char * optimize_infoname(const char * p_string) {
24 t_size index;
25 if (!pfc::binarySearch<pfc::comparator_strcmp>::run(standard_infonames,0,PFC_TABSIZE(standard_infonames),p_string,index)) return NULL;
26 return standard_infonames[index];
27 }
28
29 /*
30 order of things
31
32 meta entries
33 meta value map
34 info entries
35 string buffer
36
37 */
38
39 inline static char* stringbuffer_append(char * & buffer,const char * value)
40 {
41 char * ret = buffer;
42 while(*value) *(buffer++) = *(value++);
43 *(buffer++) = 0;
44 return ret;
45 }
46
47 #ifdef __file_info_const_impl_have_hintmap__
48
49 namespace {
50 class sort_callback_hintmap_impl : public pfc::sort_callback
51 {
52 public:
53 sort_callback_hintmap_impl(const file_info_const_impl::meta_entry * p_meta,file_info_const_impl::t_index * p_hintmap)
54 : m_meta(p_meta), m_hintmap(p_hintmap)
55 {
56 }
57
58 int compare(t_size p_index1, t_size p_index2) const
59 {
60 // profiler(sort_callback_hintmap_impl_compare);
61 return pfc::stricmp_ascii(m_meta[m_hintmap[p_index1]].m_name,m_meta[m_hintmap[p_index2]].m_name);
62 }
63
64 void swap(t_size p_index1, t_size p_index2)
65 {
66 pfc::swap_t<file_info_const_impl::t_index>(m_hintmap[p_index1],m_hintmap[p_index2]);
67 }
68 private:
69 const file_info_const_impl::meta_entry * m_meta;
70 file_info_const_impl::t_index * m_hintmap;
71 };
72
73 class bsearch_callback_hintmap_impl// : public pfc::bsearch_callback
74 {
75 public:
76 bsearch_callback_hintmap_impl(
77 const file_info_const_impl::meta_entry * p_meta,
78 const file_info_const_impl::t_index * p_hintmap,
79 const char * p_name,
80 t_size p_name_length)
81 : m_meta(p_meta), m_hintmap(p_hintmap), m_name(p_name), m_name_length(p_name_length)
82 {
83 }
84
85 inline int test(t_size p_index) const
86 {
87 return pfc::stricmp_ascii_ex(m_meta[m_hintmap[p_index]].m_name,SIZE_MAX,m_name,m_name_length);
88 }
89
90 private:
91 const file_info_const_impl::meta_entry * m_meta;
92 const file_info_const_impl::t_index * m_hintmap;
93 const char * m_name;
94 t_size m_name_length;
95 };
96 }
97
98 #endif//__file_info_const_impl_have_hintmap__
99
100 void file_info_const_impl::copy(const file_info & p_source)
101 {
102 // profiler(file_info_const_impl__copy);
103 t_size meta_size = 0;
104 t_size info_size = 0;
105 t_size valuemap_size = 0;
106 t_size stringbuffer_size = 0;
107 #ifdef __file_info_const_impl_have_hintmap__
108 t_size hintmap_size = 0;
109 #endif
110
111 const char * optbuf[64];
112 size_t optwalk = 0;
113
114 {
115 // profiler(file_info_const_impl__copy__pass1);
116 t_size index;
117 m_meta_count = pfc::downcast_guarded<t_index>(p_source.meta_get_count());
118 meta_size = m_meta_count * sizeof(meta_entry);
119 #ifdef __file_info_const_impl_have_hintmap__
120 hintmap_size = (m_meta_count > hintmap_cutoff) ? m_meta_count * sizeof(t_index) : 0;
121 #endif//__file_info_const_impl_have_hintmap__
122 for(index = 0; index < m_meta_count; index++ )
123 {
124 {
125 const char * name = p_source.meta_enum_name(index);
126 const char * opt = optimize_fieldname(name);
127 if (optwalk < PFC_TABSIZE(optbuf)) optbuf[optwalk++] = opt;
128 if (opt == NULL) stringbuffer_size += strlen(name) + 1;
129 }
130
131 t_size val; const t_size val_max = p_source.meta_enum_value_count(index);
132
133 if (val_max == 1)
134 {
135 stringbuffer_size += strlen(p_source.meta_enum_value(index,0)) + 1;
136 }
137 else
138 {
139 valuemap_size += val_max * sizeof(char*);
140
141 for(val = 0; val < val_max; val++ )
142 {
143 stringbuffer_size += strlen(p_source.meta_enum_value(index,val)) + 1;
144 }
145 }
146 }
147
148 m_info_count = pfc::downcast_guarded<t_index>(p_source.info_get_count());
149 info_size = m_info_count * sizeof(info_entry);
150 for(index = 0; index < m_info_count; index++ )
151 {
152 const char * name = p_source.info_enum_name(index);
153 const char * opt = optimize_infoname(name);
154 if (optwalk < PFC_TABSIZE(optbuf)) optbuf[optwalk++] = opt;
155 if (opt == NULL) stringbuffer_size += strlen(name) + 1;
156 stringbuffer_size += strlen(p_source.info_enum_value(index)) + 1;
157 }
158 }
159
160
161 {
162 // profiler(file_info_const_impl__copy__alloc);
163 m_buffer.set_size(
164 #ifdef __file_info_const_impl_have_hintmap__
165 hintmap_size +
166 #endif
167 meta_size + info_size + valuemap_size + stringbuffer_size);
168 }
169
170 char * walk = m_buffer.get_ptr();
171
172 #ifdef __file_info_const_impl_have_hintmap__
173 t_index* hintmap = (hintmap_size > 0) ? (t_index*) walk : NULL;
174 walk += hintmap_size;
175 #endif
176 meta_entry * meta = (meta_entry*) walk;
177 walk += meta_size;
178 char ** valuemap = (char**) walk;
179 walk += valuemap_size;
180 info_entry * info = (info_entry*) walk;
181 walk += info_size;
182 char * stringbuffer = walk;
183
184 m_meta = meta;
185 m_info = info;
186 #ifdef __file_info_const_impl_have_hintmap__
187 m_hintmap = hintmap;
188 #endif
189
190 optwalk = 0;
191 {
192 // profiler(file_info_const_impl__copy__pass2);
193 t_size index;
194 for( index = 0; index < m_meta_count; index ++ )
195 {
196 t_size val; const t_size val_max = p_source.meta_enum_value_count(index);
197
198 {
199 const char * name = p_source.meta_enum_name(index);
200 const char * name_opt;
201
202 if (optwalk < PFC_TABSIZE(optbuf)) name_opt = optbuf[optwalk++];
203 else name_opt = optimize_fieldname(name);
204
205 if (name_opt == NULL)
206 meta[index].m_name = stringbuffer_append(stringbuffer, name );
207 else
208 meta[index].m_name = name_opt;
209 }
210
211 meta[index].m_valuecount = val_max;
212
213 if (val_max == 1)
214 {
215 meta[index].m_valuemap = reinterpret_cast<const char * const *>(stringbuffer_append(stringbuffer, p_source.meta_enum_value(index,0) ));
216 }
217 else
218 {
219 meta[index].m_valuemap = valuemap;
220 for( val = 0; val < val_max ; val ++ )
221 *(valuemap ++ ) = stringbuffer_append(stringbuffer, p_source.meta_enum_value(index,val) );
222 }
223 }
224
225 for( index = 0; index < m_info_count; index ++ )
226 {
227 const char * name = p_source.info_enum_name(index);
228 const char * name_opt;
229
230 if (optwalk < PFC_TABSIZE(optbuf)) name_opt = optbuf[optwalk++];
231 else name_opt = optimize_infoname(name);
232
233 if (name_opt == NULL)
234 info[index].m_name = stringbuffer_append(stringbuffer, name );
235 else
236 info[index].m_name = name_opt;
237 info[index].m_value = stringbuffer_append(stringbuffer, p_source.info_enum_value(index) );
238 }
239 }
240
241 m_length = p_source.get_length();
242 m_replaygain = p_source.get_replaygain();
243 #ifdef __file_info_const_impl_have_hintmap__
244 if (hintmap != NULL) {
245 // profiler(file_info_const_impl__copy__hintmap);
246 for(t_size n=0;n<m_meta_count;n++) hintmap[n]= (t_index) n;
247 sort_callback_hintmap_impl cb(meta,hintmap);
248 pfc::sort(cb,m_meta_count);
249 }
250 #endif//__file_info_const_impl_have_hintmap__
251 }
252
253
254 void file_info_const_impl::reset()
255 {
256 m_meta_count = m_info_count = 0; m_length = 0; m_replaygain.reset();
257 }
258
259 t_size file_info_const_impl::meta_find_ex(const char * p_name,t_size p_name_length) const
260 {
261 #ifdef __file_info_const_impl_have_hintmap__
262 if (m_hintmap != NULL) {
263 t_size result = SIZE_MAX;
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;
265 else return m_hintmap[result];
266 } else {
267 return file_info::meta_find_ex(p_name,p_name_length);
268 }
269 #else
270 return file_info::meta_find_ex(p_name,p_name_length);
271 #endif
272 }
273
274
275 t_size file_info_const_impl::meta_enum_value_count(t_size p_index) const
276 {
277 return m_meta[p_index].m_valuecount;
278 }
279
280 const char* file_info_const_impl::meta_enum_value(t_size p_index,t_size p_value_number) const
281 {
282 const meta_entry & entry = m_meta[p_index];
283 if (entry.m_valuecount == 1)
284 return reinterpret_cast<const char*>(entry.m_valuemap);
285 else
286 return entry.m_valuemap[p_value_number];
287 }