Mercurial > hg > xmms-sid
annotate src/xs_length.c @ 230:608f31f6c095
Raw cleanup.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Tue, 21 Dec 2004 09:25:03 +0000 |
parents | 92bad4c7b998 |
children | 291715a519e2 |
rev | line source |
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4 | 1 /* |
2 XMMS-SID - SIDPlay input plugin for X MultiMedia System (XMMS) | |
3 | |
4 Get song length (from database or by other means) | |
5 | |
6 Written by Matti "ccr" Hamalainen <ccr@tnsp.org> | |
7 | |
8 This program is free software; you can redistribute it and/or modify | |
9 it under the terms of the GNU General Public License as published by | |
10 the Free Software Foundation; either version 2 of the License, or | |
11 (at your option) any later version. | |
12 | |
13 This program is distributed in the hope that it will be useful, | |
14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 GNU General Public License for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
19 along with this program; if not, write to the Free Software | |
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
21 */ | |
39 | 22 #include "xs_length.h" |
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23 #include "xs_support.h" |
230 | 24 #include "xs_config.h" |
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25 #include <stdio.h> |
4 | 26 #include <stdlib.h> |
27 #include <ctype.h> | |
28 #include <string.h> | |
29 | |
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30 |
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31 /* Database handling functions |
4 | 32 */ |
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33 static t_xs_sldb_node *xs_sldb_node_new(void) |
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34 { |
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35 t_xs_sldb_node *pResult; |
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36 |
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37 /* Allocate memory for new node */ |
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38 pResult = (t_xs_sldb_node *) g_malloc0(sizeof(t_xs_sldb_node)); |
86 | 39 if (!pResult) return NULL; |
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40 |
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41 return pResult; |
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42 } |
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43 |
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44 |
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45 static void xs_sldb_node_free(t_xs_sldb_node *pNode) |
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46 { |
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47 if (pNode) |
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48 { |
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49 /* Nothing much to do here ... */ |
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50 g_free(pNode); |
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51 } |
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52 } |
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53 |
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54 |
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55 /* Insert given node to db linked list |
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56 */ |
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57 static void xs_sldb_node_insert(t_xs_sldb *db, t_xs_sldb_node *pNode) |
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58 { |
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59 assert(db); |
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60 |
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61 if (db->pNodes) |
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62 { |
86 | 63 /* The first node's pPrev points to last node */ |
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64 LPREV = db->pNodes->pPrev; /* New node's prev = Previous last node */ |
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65 db->pNodes->pPrev->pNext = pNode; /* Previous last node's next = New node */ |
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66 db->pNodes->pPrev = pNode; /* New last node = New node */ |
86 | 67 LNEXT = NULL; /* But next is NULL! */ |
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68 } else { |
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69 db->pNodes = pNode; /* First node ... */ |
86 | 70 LPREV = pNode; /* ... it's also last */ |
71 LNEXT = NULL; /* But next is NULL! */ | |
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72 } |
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73 } |
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74 |
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75 |
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76 /* Parses a time-entry in SLDB format |
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77 */ |
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78 static gint32 xs_sldb_gettime(gchar *pcStr, int *piPos) |
4 | 79 { |
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80 gint32 iResult, iTemp; |
4 | 81 |
82 /* Check if it starts with a digit */ | |
83 if (isdigit(pcStr[*piPos])) | |
84 { | |
85 /* Get minutes-field */ | |
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86 iResult = 0; |
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87 while (isdigit(pcStr[*piPos])) |
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88 iResult = (iResult * 10) + (pcStr[(*piPos)++] - '0'); |
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89 |
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90 iResult *= 60; |
4 | 91 |
92 /* Check the field separator char */ | |
93 if (pcStr[*piPos] == ':') | |
94 { | |
95 /* Get seconds-field */ | |
96 (*piPos)++; | |
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97 iTemp = 0; |
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98 while (isdigit(pcStr[*piPos])) |
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99 iTemp = (iTemp * 10) + (pcStr[(*piPos)++] - '0'); |
4 | 100 |
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101 iResult += iTemp; |
4 | 102 } else |
103 iResult = -2; | |
104 } else | |
105 iResult = -1; | |
106 | |
107 /* Ignore and skip the possible attributes */ | |
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108 while (pcStr[*piPos] && !isspace(pcStr[*piPos])) (*piPos)++; |
4 | 109 |
110 return iResult; | |
111 } | |
112 | |
113 | |
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114 /* Read database to memory |
4 | 115 */ |
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116 gint xs_sldb_read(t_xs_sldb *db, gchar *dbFilename) |
4 | 117 { |
118 FILE *inFile; | |
24 | 119 gchar inLine[XS_BUFSIZE]; |
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120 guint lineNum, linePos; |
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121 gboolean iOK; |
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122 t_xs_sldb_node *tmpNode; |
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123 assert(db); |
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124 |
4 | 125 /* Try to open the file */ |
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126 if ((inFile = fopen(dbFilename, "ra")) == NULL) |
4 | 127 { |
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128 XSERR("Could not open SongLengthDB '%s'\n", dbFilename); |
4 | 129 return -1; |
130 } | |
131 | |
132 /* Read and parse the data */ | |
133 lineNum = 0; | |
134 | |
135 while (!feof(inFile)) | |
136 { | |
137 fgets(inLine, sizeof(inLine), inFile); | |
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138 lineNum++; |
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139 |
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140 /* Check if it is datafield */ |
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141 if (isxdigit(inLine[0])) |
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142 { |
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143 /* Check the length of the hash */ |
4 | 144 linePos = 0; |
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145 while (isxdigit(inLine[linePos])) linePos++; |
4 | 146 |
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147 if (linePos != XS_MD5HASH_LENGTH_CH) |
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148 { |
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149 XSERR("Invalid hash in SongLengthDB file '%s' line #%d!\n", |
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150 dbFilename, lineNum); |
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151 } else { |
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152 /* Allocate new node */ |
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153 if ((tmpNode = xs_sldb_node_new()) == NULL) |
4 | 154 { |
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155 XSERR("Error allocating new node. Fatal error.\n"); |
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156 exit(5); |
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157 } |
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158 |
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159 /* Get hash value */ |
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160 #if (XS_MD5HASH_LENGTH != 16) |
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161 #error Mismatch in hashcode length. Fix here. |
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162 #endif |
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163 sscanf(&inLine[0], "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x", |
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164 (guint *) &(tmpNode->md5Hash[0]), (guint *) &(tmpNode->md5Hash[1]), |
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165 (guint *) &(tmpNode->md5Hash[2]), (guint *) &(tmpNode->md5Hash[3]), |
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166 (guint *) &(tmpNode->md5Hash[4]), (guint *) &(tmpNode->md5Hash[5]), |
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167 (guint *) &(tmpNode->md5Hash[6]), (guint *) &(tmpNode->md5Hash[7]), |
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168 (guint *) &(tmpNode->md5Hash[8]), (guint *) &(tmpNode->md5Hash[9]), |
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169 (guint *) &(tmpNode->md5Hash[10]), (guint *) &(tmpNode->md5Hash[11]), |
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170 (guint *) &(tmpNode->md5Hash[12]), (guint *) &(tmpNode->md5Hash[13]), |
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171 (guint *) &(tmpNode->md5Hash[14]), (guint *) &(tmpNode->md5Hash[15])); |
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172 |
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173 /* Get playtimes */ |
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174 if (inLine[linePos] != 0) |
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175 { |
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176 if (inLine[linePos] != '=') |
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177 { |
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178 XSERR("'=' expected in SongLengthDB file '%s' line #%d, column #%d\n", |
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179 dbFilename, lineNum, linePos); |
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180 |
99
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181 xs_sldb_node_free(tmpNode); |
4 | 182 } else { |
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183 /* First playtime is after '=' */ |
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184 linePos++; |
57
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Improved, re-written configuration code and lots of minor fixes
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185 iOK = TRUE; |
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186 |
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187 while ((linePos < strlen(inLine)) && iOK) |
4 | 188 { |
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189 xs_findnext(inLine, &linePos); |
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190 |
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191 if (tmpNode->nLengths < XS_STIL_MAXENTRY) |
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192 { |
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193 tmpNode->sLengths[tmpNode->nLengths] = |
227
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194 xs_sldb_gettime(inLine, &linePos); |
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195 tmpNode->nLengths++; |
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196 } else |
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197 iOK = FALSE; |
4 | 198 } |
199 | |
62
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200 /* Add an node to db in memory */ |
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201 if (iOK) |
227
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202 xs_sldb_node_insert(db, tmpNode); |
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203 else |
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204 xs_sldb_node_free(tmpNode); |
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205 } |
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206 } |
87
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207 } |
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208 } else |
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209 if ((inLine[0] != ';') && (inLine[0] != '[')) |
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210 { |
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211 XSERR("Invalid line in SongLengthDB file '%s' line #%d\n", |
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212 dbFilename, lineNum); |
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213 } |
4 | 214 |
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215 } /* while */ |
4 | 216 |
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217 /* Close the file */ |
4 | 218 fclose(inFile); |
219 | |
220 return 0; | |
221 } | |
222 | |
223 | |
227
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224 /* Compare two given MD5-hashes. |
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225 * Return: 0 if equal |
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226 * negative if testHash1 < testHash2 |
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227 * positive if testHash1 > testHash2 |
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228 */ |
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229 static gint xs_sldb_cmphash(t_xs_md5hash testHash1, t_xs_md5hash testHash2) |
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230 { |
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231 register gint i, res = 0; |
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232 |
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233 /* Compute difference of hashes */ |
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234 for (i = 0; (i < XS_MD5HASH_LENGTH) && (!res); i++) |
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235 res = (testHash1[i] - testHash2[i]); |
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236 |
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237 return res; |
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238 } |
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239 |
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240 |
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241 /* Get node from db index via binary search |
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242 */ |
227
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243 static t_xs_sldb_node * xs_sldb_get_node(t_xs_sldb *db, t_xs_md5hash pHash) |
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244 { |
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245 gint iStartNode, iEndNode, iQNode, r, i; |
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246 gboolean iFound; |
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247 t_xs_sldb_node *pResult; |
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248 |
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249 /* Check the database pointers */ |
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250 if (!db || !db->pNodes || !db->ppIndex) |
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251 return NULL; |
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252 |
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253 /* Look-up via index using binary search */ |
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254 pResult = NULL; |
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255 iStartNode = 0; |
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256 iEndNode = (db->n - 1); |
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257 iQNode = (iEndNode / 2); |
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258 iFound = FALSE; |
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259 |
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260 while ((!iFound) && ((iEndNode - iStartNode) > 128)) |
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261 { |
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262 r = xs_sldb_cmphash(pHash, db->ppIndex[iQNode]->md5Hash); |
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263 if (r < 0) |
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264 { |
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265 /* Hash was in the <- LEFT side */ |
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266 iEndNode = iQNode; |
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267 iQNode = iStartNode + ((iEndNode - iStartNode) / 2); |
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268 } else |
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269 if (r > 0) |
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270 { |
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271 /* Hash was in the RIGHT -> side */ |
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272 iStartNode = iQNode; |
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273 iQNode = iStartNode + ((iEndNode - iStartNode) / 2); |
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274 } else |
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275 iFound = TRUE; |
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276 } |
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277 |
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278 /* If not found already */ |
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279 if (!iFound) |
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280 { |
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281 /* Search the are linearly */ |
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282 iFound = FALSE; |
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283 i = iStartNode; |
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284 while ((i <= iEndNode) && (!iFound)) |
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285 { |
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286 if (xs_sldb_cmphash(pHash, db->ppIndex[i]->md5Hash) == 0) |
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287 iFound = TRUE; |
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288 else |
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289 i++; |
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290 } |
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291 |
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292 /* Check the result */ |
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293 if (iFound) |
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294 pResult = db->ppIndex[i]; |
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295 |
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296 } else { |
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297 /* Found via binary search */ |
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298 pResult = db->ppIndex[iQNode]; |
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299 } |
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300 |
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301 return pResult; |
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302 } |
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303 |
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304 |
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305 /* Compare two nodes |
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306 */ |
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307 static gint xs_sldb_cmp(const void *pNode1, const void *pNode2) |
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308 { |
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309 /* We assume here that we never ever get NULL-pointers or similar */ |
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310 return xs_sldb_cmphash((*(t_xs_sldb_node **) pNode1)->md5Hash, |
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311 (*(t_xs_sldb_node **) pNode2)->md5Hash); |
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312 } |
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313 |
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314 |
227
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315 /* (Re)create index |
4 | 316 */ |
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317 gint xs_sldb_index(t_xs_sldb *db) |
4 | 318 { |
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319 t_xs_sldb_node *pCurr; |
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320 gint i; |
227
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321 assert(db); |
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322 |
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323 /* Free old index */ |
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324 if (db->ppIndex) |
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325 { |
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326 g_free(db->ppIndex); |
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327 db->ppIndex = NULL; |
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328 } |
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329 |
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330 /* Get size of db */ |
227
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331 pCurr = db->pNodes; |
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332 db->n = 0; |
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333 while (pCurr) |
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334 { |
227
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335 db->n++; |
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336 pCurr = pCurr->pNext; |
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337 } |
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338 |
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339 /* Check number of nodes */ |
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340 if (db->n > 0) |
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341 { |
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342 /* Allocate memory for index-table */ |
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343 db->ppIndex = (t_xs_sldb_node **) g_malloc(sizeof(t_xs_sldb_node *) * db->n); |
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344 if (!db->ppIndex) return -1; |
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345 |
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346 /* Get node-pointers to table */ |
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347 i = 0; |
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348 pCurr = db->pNodes; |
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349 while (pCurr && (i < db->n)) |
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350 { |
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351 db->ppIndex[i++] = pCurr; |
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352 pCurr = pCurr->pNext; |
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353 } |
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354 |
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355 /* Sort the indexes */ |
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356 qsort(db->ppIndex, db->n, sizeof(t_xs_sldb_node *), xs_sldb_cmp); |
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357 } |
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358 |
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359 return 0; |
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360 } |
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361 |
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362 |
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363 /* Free a given song-length database |
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364 */ |
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365 void xs_sldb_free(t_xs_sldb *db) |
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366 { |
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367 t_xs_sldb_node *pCurr, *pNext; |
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368 |
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369 if (!db) return; |
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370 |
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371 /* Free the memory allocated for nodes */ |
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372 pCurr = db->pNodes; |
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373 while (pCurr) |
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374 { |
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375 pNext = pCurr->pNext; |
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376 xs_sldb_node_free(pCurr); |
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377 pCurr = pNext; |
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378 } |
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379 |
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380 db->pNodes = NULL; |
86 | 381 |
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382 /* Free memory allocated for index */ |
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383 if (db->ppIndex) |
86 | 384 { |
227
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385 g_free(db->ppIndex); |
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386 db->ppIndex = NULL; |
86 | 387 } |
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388 |
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389 /* Free structure */ |
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390 db->n = 0; |
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391 g_free(db); |
4 | 392 } |
393 | |
394 | |
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395 /* Compute md5hash of given SID-file |
4 | 396 */ |
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397 typedef struct { |
86 | 398 gchar magicID[4]; /* "PSID" magic identifier */ |
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399 guint16 version, /* Version number */ |
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400 dataOffset, /* Start of actual c64 data in file */ |
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401 loadAddress, /* Loading address */ |
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402 initAddress, /* Initialization address */ |
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403 playAddress, /* Play one frame */ |
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404 nSongs, /* Number of subsongs */ |
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405 startSong; /* Default starting song */ |
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406 guint32 speed; /* Speed */ |
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407 gchar sidName[32]; /* Descriptive text-fields, ASCIIZ */ |
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408 gchar sidAuthor[32]; |
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409 gchar sidCopyright[32]; |
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410 } t_xs_psidv1_header; |
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411 |
4 | 412 |
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413 typedef struct { |
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414 guint16 flags; /* Flags */ |
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415 guint8 startPage, |
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416 pageLength; |
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417 guint16 reserved; |
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418 } t_xs_psidv2_header; |
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419 |
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420 |
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421 static gint xs_get_sid_hash(gchar *pcFilename, t_xs_md5hash hash) |
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422 { |
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423 FILE *inFile; |
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424 t_xs_md5state inState; |
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425 t_xs_psidv1_header psidH; |
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426 t_xs_psidv2_header psidH2; |
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427 #ifdef XS_SIDBUF_DYNAMIC |
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428 guint8 *songData; |
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429 #else |
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430 guint8 songData[XS_SIDBUF_SIZE]; |
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431 #endif |
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432 guint8 ib8[2], i8; |
87
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|
433 gint iIndex, iRes; |
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|
434 |
14
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Made song-length database support FINALLY work!
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changeset
|
435 /* Try to open the file */ |
86 | 436 if ((inFile = fopen(pcFilename, "rb")) == NULL) |
14
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Made song-length database support FINALLY work!
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|
437 return -1; |
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Made song-length database support FINALLY work!
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|
438 |
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Made song-length database support FINALLY work!
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diff
changeset
|
439 /* Read PSID header in */ |
227
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440 xs_rd_str(inFile, psidH.magicID, sizeof(psidH.magicID)); |
14
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441 if ((psidH.magicID[0] != 'P') || (psidH.magicID[1] != 'S') || |
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Made song-length database support FINALLY work!
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442 (psidH.magicID[2] != 'I') || (psidH.magicID[3] != 'D')) |
227
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Improved modularization of STIL and song-length database subsystems.
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443 { |
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444 fclose(inFile); |
14
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Made song-length database support FINALLY work!
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445 return -2; |
227
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446 } |
14
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Made song-length database support FINALLY work!
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|
447 |
227
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448 psidH.version = xs_rd_be16(inFile); |
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449 psidH.dataOffset = xs_rd_be16(inFile); |
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Improved modularization of STIL and song-length database subsystems.
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450 psidH.loadAddress = xs_rd_be16(inFile); |
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451 psidH.initAddress = xs_rd_be16(inFile); |
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452 psidH.playAddress = xs_rd_be16(inFile); |
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453 psidH.nSongs = xs_rd_be16(inFile); |
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454 psidH.startSong = xs_rd_be16(inFile); |
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Improved modularization of STIL and song-length database subsystems.
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455 psidH.speed = xs_rd_be32(inFile); |
14
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456 |
227
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457 xs_rd_str(inFile, psidH.sidName, sizeof(psidH.sidName)); |
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458 xs_rd_str(inFile, psidH.sidAuthor, sizeof(psidH.sidAuthor)); |
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459 xs_rd_str(inFile, psidH.sidCopyright, sizeof(psidH.sidCopyright)); |
14
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Made song-length database support FINALLY work!
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diff
changeset
|
460 |
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Made song-length database support FINALLY work!
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diff
changeset
|
461 /* Check if we need to load PSIDv2NG header ... */ |
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Made song-length database support FINALLY work!
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4
diff
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462 if (psidH.version == 2) |
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Made song-length database support FINALLY work!
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4
diff
changeset
|
463 { |
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Made song-length database support FINALLY work!
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changeset
|
464 /* Yes, we need to */ |
227
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465 psidH2.flags = xs_rd_be16(inFile); |
14
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Made song-length database support FINALLY work!
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4
diff
changeset
|
466 psidH2.startPage = fgetc(inFile); |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
467 psidH2.pageLength = fgetc(inFile); |
227
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|
468 psidH2.reserved = xs_rd_be16(inFile); |
14
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
469 } |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
470 |
227
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471 #ifdef XS_SIDBUF_DYNAMIC |
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472 /* Allocate buffer */ |
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473 songData = (guint8 *) g_malloc(XS_SIDBUF_SIZE * sizeof(guint8)); |
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474 if (!songData) |
92bad4c7b998
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|
475 { |
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476 fclose(inFile); |
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|
477 return -3; |
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|
478 } |
92bad4c7b998
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479 #endif |
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|
480 |
14
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Made song-length database support FINALLY work!
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changeset
|
481 /* Read data to buffer */ |
227
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482 iRes = fread(songData, sizeof(guint8), XS_SIDBUF_SIZE, inFile); |
14
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|
483 fclose(inFile); |
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Made song-length database support FINALLY work!
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|
484 |
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Made song-length database support FINALLY work!
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changeset
|
485 /* Initialize and start MD5-hash calculation */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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|
486 xs_md5_init(&inState); |
f5d82424b0ed
Made song-length database support FINALLY work!
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|
487 if (psidH.loadAddress == 0) |
227
92bad4c7b998
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223
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|
488 { |
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|
489 /* Strip load address (2 first bytes) */ |
87
94497283affa
Various fixes and improvements
Matti Hamalainen <ccr@tnsp.org>
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86
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changeset
|
490 xs_md5_append(&inState, &songData[2], iRes-2); |
227
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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491 } else { |
92bad4c7b998
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|
492 /* Append "as is" */ |
178
002e314712c4
Fixed a serious bug in MD5-hashing of file: &databuffer was given (pointer
Matti Hamalainen <ccr@tnsp.org>
parents:
99
diff
changeset
|
493 xs_md5_append(&inState, songData, iRes); |
227
92bad4c7b998
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|
494 } |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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|
495 |
92bad4c7b998
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changeset
|
496 |
92bad4c7b998
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|
497 #ifdef XS_SIDBUF_DYNAMIC |
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498 /* Free buffer */ |
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499 g_free(songData); |
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500 #endif |
87
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Various fixes and improvements
Matti Hamalainen <ccr@tnsp.org>
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86
diff
changeset
|
501 |
14
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
502 /* Append header data to hash */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
503 #define XSADDHASH(QDATAB) { ib8[0] = (QDATAB & 0xff); ib8[1] = (QDATAB >> 8); xs_md5_append(&inState, (guint8 *) &ib8, sizeof(ib8)); } |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
504 |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
505 XSADDHASH(psidH.initAddress) |
f5d82424b0ed
Made song-length database support FINALLY work!
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|
506 XSADDHASH(psidH.playAddress) |
f5d82424b0ed
Made song-length database support FINALLY work!
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507 XSADDHASH(psidH.nSongs) |
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Made song-length database support FINALLY work!
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changeset
|
508 |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
509 #undef XSADDHASH |
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Made song-length database support FINALLY work!
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4
diff
changeset
|
510 |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
511 /* Append song speed data to hash */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
512 i8 = 0; |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
513 for (iIndex = 0; (iIndex < psidH.nSongs) && (iIndex < 32); iIndex++) |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
514 { |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
515 i8 = (psidH.speed & (1 << iIndex)) ? 60 : 0; |
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Made song-length database support FINALLY work!
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4
diff
changeset
|
516 xs_md5_append(&inState, &i8, sizeof(i8)); |
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Made song-length database support FINALLY work!
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diff
changeset
|
517 } |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
518 |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
519 /* Rest of songs (more than 32) */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
520 for (iIndex = 32; iIndex < psidH.nSongs; iIndex++) |
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Made song-length database support FINALLY work!
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4
diff
changeset
|
521 { |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
522 xs_md5_append(&inState, &i8, sizeof(i8)); |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
523 } |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
524 |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
525 |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
526 /* PSIDv2NG specific */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
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|
527 if (psidH.version == 2) |
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Made song-length database support FINALLY work!
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4
diff
changeset
|
528 { |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
529 /* SEE SIDPLAY HEADERS FOR INFO */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
530 i8 = (psidH2.flags >> 2) & 3; |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
531 if (i8 == 2) |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
532 xs_md5_append(&inState, &i8, sizeof(i8)); |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
533 } |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
534 |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
535 /* Calculate the hash */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
536 xs_md5_finish(&inState, hash); |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
537 |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
538 return 0; |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
539 } |
4 | 540 |
541 | |
227
92bad4c7b998
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|
542 /* Get song lengths |
4 | 543 */ |
227
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|
544 t_xs_sldb_node * xs_sldb_get(t_xs_sldb *db, gchar *pcFilename) |
4 | 545 { |
86 | 546 t_xs_sldb_node *pResult; |
14
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
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|
547 t_xs_md5hash dbHash; |
4 | 548 |
227
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|
549 /* Get the hash and then look up from db */ |
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223
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|
550 if (xs_get_sid_hash(pcFilename, dbHash) == 0) |
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|
551 pResult = xs_sldb_get_node(db, dbHash); |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
Matti Hamalainen <ccr@tnsp.org>
parents:
223
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changeset
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552 else |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
Matti Hamalainen <ccr@tnsp.org>
parents:
223
diff
changeset
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553 pResult = NULL; |
14
f5d82424b0ed
Made song-length database support FINALLY work!
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
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554 |
86 | 555 return pResult; |
4 | 556 } |
230 | 557 |
558 | |
559 /* | |
560 * These should be moved out of this module some day ... | |
561 */ | |
562 static t_xs_sldb *xs_sldb_db = NULL; | |
563 XS_MUTEX(xs_sldb_db); | |
564 | |
565 gint xs_songlen_init(void) | |
566 { | |
567 XS_MUTEX_LOCK(xs_cfg); | |
568 | |
569 if (!xs_cfg.songlenDBPath) | |
570 { | |
571 XS_MUTEX_UNLOCK(xs_cfg); | |
572 return -1; | |
573 } | |
574 | |
575 XS_MUTEX_LOCK(xs_sldb_db); | |
576 | |
577 /* Check if already initialized */ | |
578 if (xs_sldb_db) xs_sldb_free(xs_sldb_db); | |
579 | |
580 /* Allocate database */ | |
581 xs_sldb_db = (t_xs_sldb *) g_malloc0(sizeof(t_xs_sldb)); | |
582 if (!xs_sldb_db) | |
583 { | |
584 XS_MUTEX_UNLOCK(xs_cfg); | |
585 XS_MUTEX_UNLOCK(xs_sldb_db); | |
586 return -2; | |
587 } | |
588 | |
589 /* Read the database */ | |
590 if (xs_sldb_read(xs_sldb_db, xs_cfg.songlenDBPath) != 0) | |
591 { | |
592 xs_sldb_free(xs_sldb_db); | |
593 xs_sldb_db = NULL; | |
594 XS_MUTEX_UNLOCK(xs_cfg); | |
595 XS_MUTEX_UNLOCK(xs_sldb_db); | |
596 return -3; | |
597 } | |
598 | |
599 /* Create index */ | |
600 if (xs_sldb_index(xs_sldb_db) != 0) | |
601 { | |
602 xs_sldb_free(xs_sldb_db); | |
603 xs_sldb_db = NULL; | |
604 XS_MUTEX_UNLOCK(xs_cfg); | |
605 XS_MUTEX_UNLOCK(xs_sldb_db); | |
606 return -4; | |
607 } | |
608 | |
609 XS_MUTEX_UNLOCK(xs_cfg); | |
610 XS_MUTEX_UNLOCK(xs_sldb_db); | |
611 return 0; | |
612 } | |
613 | |
614 | |
615 void xs_songlen_close(void) | |
616 { | |
617 XS_MUTEX_LOCK(xs_sldb_db); | |
618 xs_sldb_free(xs_sldb_db); | |
619 xs_sldb_db = NULL; | |
620 XS_MUTEX_UNLOCK(xs_sldb_db); | |
621 } | |
622 | |
623 | |
624 t_xs_sldb_node * xs_songlen_get(gchar *pcFilename) | |
625 { | |
626 t_xs_sldb_node *pResult; | |
627 | |
628 XS_MUTEX_LOCK(xs_sldb_db); | |
629 | |
630 if (xs_cfg.songlenDBEnable && xs_sldb_db) | |
631 pResult = xs_sldb_get(xs_sldb_db, pcFilename); | |
632 else | |
633 pResult = NULL; | |
634 | |
635 XS_MUTEX_UNLOCK(xs_sldb_db); | |
636 | |
637 return pResult; | |
638 } | |
639 |