Mercurial > hg > xmms-sid
annotate src/xs_length.c @ 316:2b22c1f45097
PSID/RSID
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Tue, 04 Jan 2005 00:32:04 +0000 |
parents | cab5ec6127ee |
children | dd201740a720 |
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 */ |
289 | 78 static gint32 xs_sldb_gettime(gchar *pcStr, size_t *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; | |
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119 gchar inLine[XS_BUF_SIZE]; |
289 | 120 size_t 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 { | |
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137 fgets(inLine, XS_BUF_SIZE, inFile); |
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138 inLine[XS_BUF_SIZE-1] = 0; |
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139 lineNum++; |
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140 |
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141 /* Check if it is datafield */ |
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142 if (isxdigit(inLine[0])) |
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143 { |
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144 /* Check the length of the hash */ |
4 | 145 linePos = 0; |
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146 while (isxdigit(inLine[linePos])) linePos++; |
4 | 147 |
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148 if (linePos != XS_MD5HASH_LENGTH_CH) |
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149 { |
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150 XSERR("Invalid hash in SongLengthDB file '%s' line #%d!\n", |
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151 dbFilename, lineNum); |
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152 } else { |
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153 /* Allocate new node */ |
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154 if ((tmpNode = xs_sldb_node_new()) == NULL) |
4 | 155 { |
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156 XSERR("Error allocating new node. Fatal error.\n"); |
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157 exit(5); |
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158 } |
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159 |
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160 /* Get hash value */ |
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161 #if (XS_MD5HASH_LENGTH != 16) |
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162 #error Mismatch in hashcode length. Fix here. |
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163 #endif |
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164 sscanf(&inLine[0], "%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x", |
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165 (guint *) &(tmpNode->md5Hash[0]), (guint *) &(tmpNode->md5Hash[1]), |
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166 (guint *) &(tmpNode->md5Hash[2]), (guint *) &(tmpNode->md5Hash[3]), |
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167 (guint *) &(tmpNode->md5Hash[4]), (guint *) &(tmpNode->md5Hash[5]), |
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168 (guint *) &(tmpNode->md5Hash[6]), (guint *) &(tmpNode->md5Hash[7]), |
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169 (guint *) &(tmpNode->md5Hash[8]), (guint *) &(tmpNode->md5Hash[9]), |
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170 (guint *) &(tmpNode->md5Hash[10]), (guint *) &(tmpNode->md5Hash[11]), |
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171 (guint *) &(tmpNode->md5Hash[12]), (guint *) &(tmpNode->md5Hash[13]), |
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172 (guint *) &(tmpNode->md5Hash[14]), (guint *) &(tmpNode->md5Hash[15])); |
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173 |
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174 /* Get playtimes */ |
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175 if (inLine[linePos] != 0) |
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176 { |
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177 if (inLine[linePos] != '=') |
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178 { |
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179 XSERR("'=' expected in SongLengthDB file '%s' line #%d, column #%d\n", |
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180 dbFilename, lineNum, linePos); |
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181 |
99
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182 xs_sldb_node_free(tmpNode); |
4 | 183 } else { |
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184 /* First playtime is after '=' */ |
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185 linePos++; |
57
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186 iOK = TRUE; |
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187 |
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188 while ((linePos < strlen(inLine)) && iOK) |
4 | 189 { |
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190 xs_findnext(inLine, &linePos); |
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191 |
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192 if (tmpNode->nLengths < XS_STIL_MAXENTRY) |
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193 { |
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194 tmpNode->sLengths[tmpNode->nLengths] = |
227
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195 xs_sldb_gettime(inLine, &linePos); |
14
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196 tmpNode->nLengths++; |
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197 } else |
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198 iOK = FALSE; |
4 | 199 } |
200 | |
62
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201 /* Add an node to db in memory */ |
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202 if (iOK) |
227
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203 xs_sldb_node_insert(db, tmpNode); |
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204 else |
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205 xs_sldb_node_free(tmpNode); |
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206 } |
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207 } |
87
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208 } |
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209 } else |
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210 if ((inLine[0] != ';') && (inLine[0] != '[')) |
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211 { |
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212 XSERR("Invalid line in SongLengthDB file '%s' line #%d\n", |
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213 dbFilename, lineNum); |
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214 } |
4 | 215 |
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216 } /* while */ |
4 | 217 |
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218 /* Close the file */ |
4 | 219 fclose(inFile); |
220 | |
221 return 0; | |
222 } | |
223 | |
224 | |
227
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225 /* Compare two given MD5-hashes. |
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226 * Return: 0 if equal |
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227 * negative if testHash1 < testHash2 |
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228 * positive if testHash1 > testHash2 |
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229 */ |
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230 static gint xs_sldb_cmphash(t_xs_md5hash testHash1, t_xs_md5hash testHash2) |
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231 { |
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232 register gint i, res = 0; |
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233 |
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234 /* Compute difference of hashes */ |
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235 for (i = 0; (i < XS_MD5HASH_LENGTH) && (!res); i++) |
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236 res = (testHash1[i] - testHash2[i]); |
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237 |
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238 return res; |
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239 } |
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240 |
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241 |
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242 /* Get node from db index via binary search |
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243 */ |
227
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244 static t_xs_sldb_node * xs_sldb_get_node(t_xs_sldb *db, t_xs_md5hash pHash) |
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245 { |
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246 gint iStartNode, iEndNode, iQNode, r, i; |
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247 gboolean iFound; |
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248 t_xs_sldb_node *pResult; |
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249 |
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250 /* Check the database pointers */ |
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251 if (!db || !db->pNodes || !db->ppIndex) |
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252 return NULL; |
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253 |
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254 /* Look-up via index using binary search */ |
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255 pResult = NULL; |
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256 iStartNode = 0; |
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257 iEndNode = (db->n - 1); |
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258 iQNode = (iEndNode / 2); |
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259 iFound = FALSE; |
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260 |
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261 while ((!iFound) && ((iEndNode - iStartNode) > 128)) |
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262 { |
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263 r = xs_sldb_cmphash(pHash, db->ppIndex[iQNode]->md5Hash); |
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264 if (r < 0) |
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265 { |
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266 /* Hash was in the <- LEFT side */ |
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267 iEndNode = iQNode; |
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268 iQNode = iStartNode + ((iEndNode - iStartNode) / 2); |
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269 } else |
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270 if (r > 0) |
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271 { |
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272 /* Hash was in the RIGHT -> side */ |
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273 iStartNode = iQNode; |
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274 iQNode = iStartNode + ((iEndNode - iStartNode) / 2); |
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275 } else |
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276 iFound = TRUE; |
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277 } |
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278 |
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279 /* If not found already */ |
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280 if (!iFound) |
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281 { |
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282 /* Search the are linearly */ |
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283 iFound = FALSE; |
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284 i = iStartNode; |
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285 while ((i <= iEndNode) && (!iFound)) |
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286 { |
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287 if (xs_sldb_cmphash(pHash, db->ppIndex[i]->md5Hash) == 0) |
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288 iFound = TRUE; |
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289 else |
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290 i++; |
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291 } |
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292 |
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293 /* Check the result */ |
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294 if (iFound) |
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295 pResult = db->ppIndex[i]; |
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296 |
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297 } else { |
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298 /* Found via binary search */ |
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299 pResult = db->ppIndex[iQNode]; |
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300 } |
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301 |
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302 return pResult; |
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303 } |
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304 |
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305 |
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306 /* Compare two nodes |
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307 */ |
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308 static gint xs_sldb_cmp(const void *pNode1, const void *pNode2) |
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309 { |
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310 /* We assume here that we never ever get NULL-pointers or similar */ |
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311 return xs_sldb_cmphash((*(t_xs_sldb_node **) pNode1)->md5Hash, |
62
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312 (*(t_xs_sldb_node **) pNode2)->md5Hash); |
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313 } |
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314 |
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315 |
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316 /* (Re)create index |
4 | 317 */ |
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318 gint xs_sldb_index(t_xs_sldb *db) |
4 | 319 { |
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320 t_xs_sldb_node *pCurr; |
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321 gint i; |
227
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322 assert(db); |
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323 |
227
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324 /* Free old index */ |
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325 if (db->ppIndex) |
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326 { |
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327 g_free(db->ppIndex); |
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328 db->ppIndex = NULL; |
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329 } |
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330 |
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331 /* Get size of db */ |
227
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332 pCurr = db->pNodes; |
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333 db->n = 0; |
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334 while (pCurr) |
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335 { |
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336 db->n++; |
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337 pCurr = pCurr->pNext; |
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338 } |
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339 |
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340 /* Check number of nodes */ |
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341 if (db->n > 0) |
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342 { |
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343 /* Allocate memory for index-table */ |
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344 db->ppIndex = (t_xs_sldb_node **) g_malloc(sizeof(t_xs_sldb_node *) * db->n); |
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345 if (!db->ppIndex) return -1; |
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346 |
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347 /* Get node-pointers to table */ |
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348 i = 0; |
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349 pCurr = db->pNodes; |
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350 while (pCurr && (i < db->n)) |
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351 { |
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352 db->ppIndex[i++] = pCurr; |
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353 pCurr = pCurr->pNext; |
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354 } |
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355 |
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356 /* Sort the indexes */ |
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357 qsort(db->ppIndex, db->n, sizeof(t_xs_sldb_node *), xs_sldb_cmp); |
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358 } |
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359 |
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360 return 0; |
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361 } |
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362 |
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363 |
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364 /* Free a given song-length database |
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365 */ |
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366 void xs_sldb_free(t_xs_sldb *db) |
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367 { |
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368 t_xs_sldb_node *pCurr, *pNext; |
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369 |
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370 if (!db) return; |
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371 |
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372 /* Free the memory allocated for nodes */ |
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373 pCurr = db->pNodes; |
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374 while (pCurr) |
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375 { |
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376 pNext = pCurr->pNext; |
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377 xs_sldb_node_free(pCurr); |
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378 pCurr = pNext; |
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379 } |
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380 |
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381 db->pNodes = NULL; |
86 | 382 |
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383 /* Free memory allocated for index */ |
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384 if (db->ppIndex) |
86 | 385 { |
227
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386 g_free(db->ppIndex); |
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387 db->ppIndex = NULL; |
86 | 388 } |
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389 |
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390 /* Free structure */ |
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391 db->n = 0; |
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392 g_free(db); |
4 | 393 } |
394 | |
395 | |
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396 /* Compute md5hash of given SID-file |
4 | 397 */ |
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398 typedef struct { |
316 | 399 gchar magicID[4]; /* "PSID" / "RSID" magic identifier */ |
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400 guint16 version, /* Version number */ |
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401 dataOffset, /* Start of actual c64 data in file */ |
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402 loadAddress, /* Loading address */ |
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403 initAddress, /* Initialization address */ |
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404 playAddress, /* Play one frame */ |
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405 nSongs, /* Number of subsongs */ |
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406 startSong; /* Default starting song */ |
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407 guint32 speed; /* Speed */ |
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408 gchar sidName[32]; /* Descriptive text-fields, ASCIIZ */ |
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409 gchar sidAuthor[32]; |
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410 gchar sidCopyright[32]; |
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411 } t_xs_psidv1_header; |
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412 |
4 | 413 |
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414 typedef struct { |
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415 guint16 flags; /* Flags */ |
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416 guint8 startPage, |
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417 pageLength; |
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418 guint16 reserved; |
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419 } t_xs_psidv2_header; |
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420 |
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421 |
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422 static gint xs_get_sid_hash(gchar *pcFilename, t_xs_md5hash hash) |
14
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423 { |
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424 FILE *inFile; |
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425 t_xs_md5state inState; |
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426 t_xs_psidv1_header psidH; |
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427 t_xs_psidv2_header psidH2; |
241
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428 #ifdef XS_BUF_DYNAMIC |
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429 guint8 *songData; |
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430 #else |
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431 guint8 songData[XS_SIDBUF_SIZE]; |
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432 #endif |
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433 guint8 ib8[2], i8; |
87
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|
434 gint iIndex, iRes; |
94497283affa
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|
435 |
14
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Made song-length database support FINALLY work!
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diff
changeset
|
436 /* Try to open the file */ |
86 | 437 if ((inFile = fopen(pcFilename, "rb")) == NULL) |
14
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Made song-length database support FINALLY work!
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|
438 return -1; |
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Made song-length database support FINALLY work!
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|
439 |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
440 /* Read PSID header in */ |
227
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441 xs_rd_str(inFile, psidH.magicID, sizeof(psidH.magicID)); |
316 | 442 if ((psidH.magicID[0] != 'P' && psidH.magicID[0] != 'R') || |
443 (psidH.magicID[1] != 'S') || (psidH.magicID[2] != 'I') || (psidH.magicID[3] != 'D')) | |
227
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444 { |
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445 fclose(inFile); |
14
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Made song-length database support FINALLY work!
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446 return -2; |
227
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447 } |
14
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|
448 |
227
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449 psidH.version = xs_rd_be16(inFile); |
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450 psidH.dataOffset = xs_rd_be16(inFile); |
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451 psidH.loadAddress = xs_rd_be16(inFile); |
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452 psidH.initAddress = xs_rd_be16(inFile); |
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453 psidH.playAddress = xs_rd_be16(inFile); |
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|
454 psidH.nSongs = xs_rd_be16(inFile); |
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455 psidH.startSong = xs_rd_be16(inFile); |
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Improved modularization of STIL and song-length database subsystems.
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456 psidH.speed = xs_rd_be32(inFile); |
14
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|
457 |
227
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458 xs_rd_str(inFile, psidH.sidName, sizeof(psidH.sidName)); |
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Improved modularization of STIL and song-length database subsystems.
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459 xs_rd_str(inFile, psidH.sidAuthor, sizeof(psidH.sidAuthor)); |
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Improved modularization of STIL and song-length database subsystems.
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460 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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changeset
|
461 |
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Made song-length database support FINALLY work!
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changeset
|
462 /* 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
changeset
|
463 if (psidH.version == 2) |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
464 { |
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Made song-length database support FINALLY work!
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diff
changeset
|
465 /* Yes, we need to */ |
227
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466 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
|
467 psidH2.startPage = fgetc(inFile); |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
468 psidH2.pageLength = fgetc(inFile); |
227
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469 psidH2.reserved = xs_rd_be16(inFile); |
14
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
470 } |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
471 |
241
291715a519e2
Compile-time setting to enable/disable use of dynamically allocated buffers.
Matti Hamalainen <ccr@tnsp.org>
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230
diff
changeset
|
472 #ifdef XS_BUF_DYNAMIC |
227
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473 /* Allocate buffer */ |
92bad4c7b998
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474 songData = (guint8 *) g_malloc(XS_SIDBUF_SIZE * sizeof(guint8)); |
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475 if (!songData) |
92bad4c7b998
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|
476 { |
92bad4c7b998
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477 fclose(inFile); |
92bad4c7b998
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478 return -3; |
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|
479 } |
92bad4c7b998
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|
480 #endif |
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|
481 |
14
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changeset
|
482 /* Read data to buffer */ |
227
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483 iRes = fread(songData, sizeof(guint8), XS_SIDBUF_SIZE, inFile); |
14
f5d82424b0ed
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|
484 fclose(inFile); |
f5d82424b0ed
Made song-length database support FINALLY work!
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|
485 |
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Made song-length database support FINALLY work!
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changeset
|
486 /* Initialize and start MD5-hash calculation */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
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changeset
|
487 xs_md5_init(&inState); |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
488 if (psidH.loadAddress == 0) |
227
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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223
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changeset
|
489 { |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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changeset
|
490 /* Strip load address (2 first bytes) */ |
87
94497283affa
Various fixes and improvements
Matti Hamalainen <ccr@tnsp.org>
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86
diff
changeset
|
491 xs_md5_append(&inState, &songData[2], iRes-2); |
227
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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|
492 } else { |
92bad4c7b998
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223
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changeset
|
493 /* 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
|
494 xs_md5_append(&inState, songData, iRes); |
227
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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changeset
|
495 } |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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changeset
|
496 |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
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changeset
|
497 |
241
291715a519e2
Compile-time setting to enable/disable use of dynamically allocated buffers.
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230
diff
changeset
|
498 #ifdef XS_BUF_DYNAMIC |
227
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499 /* Free buffer */ |
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|
500 g_free(songData); |
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501 #endif |
87
94497283affa
Various fixes and improvements
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86
diff
changeset
|
502 |
14
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
503 /* Append header data to hash */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
504 #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!
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
505 |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
506 XSADDHASH(psidH.initAddress) |
f5d82424b0ed
Made song-length database support FINALLY work!
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changeset
|
507 XSADDHASH(psidH.playAddress) |
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|
508 XSADDHASH(psidH.nSongs) |
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Made song-length database support FINALLY work!
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diff
changeset
|
509 |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
510 #undef XSADDHASH |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
511 |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
512 /* Append song speed data to hash */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
513 i8 = 0; |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
514 for (iIndex = 0; (iIndex < psidH.nSongs) && (iIndex < 32); iIndex++) |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
515 { |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
516 i8 = (psidH.speed & (1 << iIndex)) ? 60 : 0; |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
517 xs_md5_append(&inState, &i8, sizeof(i8)); |
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 |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
520 /* Rest of songs (more than 32) */ |
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Made song-length database support FINALLY work!
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4
diff
changeset
|
521 for (iIndex = 32; iIndex < psidH.nSongs; iIndex++) |
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
changeset
|
522 { |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
523 xs_md5_append(&inState, &i8, sizeof(i8)); |
f5d82424b0ed
Made song-length database support FINALLY work!
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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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parents:
4
diff
changeset
|
526 |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
527 /* PSIDv2NG specific */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
528 if (psidH.version == 2) |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
529 { |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
530 /* SEE SIDPLAY HEADERS FOR INFO */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
531 i8 = (psidH2.flags >> 2) & 3; |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
532 if (i8 == 2) |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
533 xs_md5_append(&inState, &i8, sizeof(i8)); |
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 |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
536 /* Calculate the hash */ |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
537 xs_md5_finish(&inState, hash); |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
538 |
f5d82424b0ed
Made song-length database support FINALLY work!
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parents:
4
diff
changeset
|
539 return 0; |
f5d82424b0ed
Made song-length database support FINALLY work!
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4
diff
changeset
|
540 } |
4 | 541 |
542 | |
227
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|
543 /* Get song lengths |
4 | 544 */ |
227
92bad4c7b998
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|
545 t_xs_sldb_node * xs_sldb_get(t_xs_sldb *db, gchar *pcFilename) |
4 | 546 { |
86 | 547 t_xs_sldb_node *pResult; |
14
f5d82424b0ed
Made song-length database support FINALLY work!
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diff
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|
548 t_xs_md5hash dbHash; |
4 | 549 |
227
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diff
changeset
|
550 /* Get the hash and then look up from db */ |
92bad4c7b998
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diff
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|
551 if (xs_get_sid_hash(pcFilename, dbHash) == 0) |
92bad4c7b998
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|
552 pResult = xs_sldb_get_node(db, dbHash); |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
Matti Hamalainen <ccr@tnsp.org>
parents:
223
diff
changeset
|
553 else |
92bad4c7b998
Improved modularization of STIL and song-length database subsystems.
Matti Hamalainen <ccr@tnsp.org>
parents:
223
diff
changeset
|
554 pResult = NULL; |
14
f5d82424b0ed
Made song-length database support FINALLY work!
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
555 |
86 | 556 return pResult; |
4 | 557 } |
230 | 558 |
559 | |
560 /* | |
561 * These should be moved out of this module some day ... | |
562 */ | |
563 static t_xs_sldb *xs_sldb_db = NULL; | |
564 XS_MUTEX(xs_sldb_db); | |
565 | |
566 gint xs_songlen_init(void) | |
567 { | |
568 XS_MUTEX_LOCK(xs_cfg); | |
569 | |
570 if (!xs_cfg.songlenDBPath) | |
571 { | |
572 XS_MUTEX_UNLOCK(xs_cfg); | |
573 return -1; | |
574 } | |
575 | |
576 XS_MUTEX_LOCK(xs_sldb_db); | |
577 | |
578 /* Check if already initialized */ | |
579 if (xs_sldb_db) xs_sldb_free(xs_sldb_db); | |
580 | |
581 /* Allocate database */ | |
582 xs_sldb_db = (t_xs_sldb *) g_malloc0(sizeof(t_xs_sldb)); | |
583 if (!xs_sldb_db) | |
584 { | |
585 XS_MUTEX_UNLOCK(xs_cfg); | |
586 XS_MUTEX_UNLOCK(xs_sldb_db); | |
587 return -2; | |
588 } | |
589 | |
590 /* Read the database */ | |
591 if (xs_sldb_read(xs_sldb_db, xs_cfg.songlenDBPath) != 0) | |
592 { | |
593 xs_sldb_free(xs_sldb_db); | |
594 xs_sldb_db = NULL; | |
595 XS_MUTEX_UNLOCK(xs_cfg); | |
596 XS_MUTEX_UNLOCK(xs_sldb_db); | |
597 return -3; | |
598 } | |
599 | |
600 /* Create index */ | |
601 if (xs_sldb_index(xs_sldb_db) != 0) | |
602 { | |
603 xs_sldb_free(xs_sldb_db); | |
604 xs_sldb_db = NULL; | |
605 XS_MUTEX_UNLOCK(xs_cfg); | |
606 XS_MUTEX_UNLOCK(xs_sldb_db); | |
607 return -4; | |
608 } | |
609 | |
610 XS_MUTEX_UNLOCK(xs_cfg); | |
611 XS_MUTEX_UNLOCK(xs_sldb_db); | |
612 return 0; | |
613 } | |
614 | |
615 | |
616 void xs_songlen_close(void) | |
617 { | |
618 XS_MUTEX_LOCK(xs_sldb_db); | |
619 xs_sldb_free(xs_sldb_db); | |
620 xs_sldb_db = NULL; | |
621 XS_MUTEX_UNLOCK(xs_sldb_db); | |
622 } | |
623 | |
624 | |
625 t_xs_sldb_node * xs_songlen_get(gchar *pcFilename) | |
626 { | |
627 t_xs_sldb_node *pResult; | |
628 | |
629 XS_MUTEX_LOCK(xs_sldb_db); | |
630 | |
631 if (xs_cfg.songlenDBEnable && xs_sldb_db) | |
632 pResult = xs_sldb_get(xs_sldb_db, pcFilename); | |
633 else | |
634 pResult = NULL; | |
635 | |
636 XS_MUTEX_UNLOCK(xs_sldb_db); | |
637 | |
638 return pResult; | |
639 } | |
640 |