Mercurial > cpython-lru_cache-weakref
annotate Modules/cdmodule.c @ 2800:ab3dca97ffbe legacy-trunk
new grammar for 3rd raise arg and keyword parameters
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Fri, 07 Jul 1995 22:26:23 +0000 |
| parents | 4084ecf276cf |
| children | 65d2d8e67da3 |
| rev | line source |
|---|---|
| 820 | 1 /********************************************************** |
|
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2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
|
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3 The Netherlands. |
| 820 | 4 |
| 5 All Rights Reserved | |
| 6 | |
| 7 Permission to use, copy, modify, and distribute this software and its | |
| 8 documentation for any purpose and without fee is hereby granted, | |
| 9 provided that the above copyright notice appear in all copies and that | |
| 10 both that copyright notice and this permission notice appear in | |
| 11 supporting documentation, and that the names of Stichting Mathematisch | |
| 12 Centrum or CWI not be used in advertising or publicity pertaining to | |
| 13 distribution of the software without specific, written prior permission. | |
| 14 | |
| 15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO | |
| 16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE | |
| 18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
| 21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 22 | |
| 23 ******************************************************************/ | |
| 24 | |
| 25 /* CD module -- interface to Mark Callow's and Roger Chickering's */ | |
| 26 /* CD Audio Library (CD). */ | |
| 27 | |
| 28 #include <sys/types.h> | |
| 29 #include <cdaudio.h> | |
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30 /* #include <sigfpe.h> */ |
| 820 | 31 #include "allobjects.h" |
| 32 #include "import.h" | |
| 33 #include "modsupport.h" | |
| 34 #include "ceval.h" | |
| 35 | |
| 36 #define NCALLBACKS 8 | |
| 37 | |
| 38 typedef struct { | |
| 39 OB_HEAD | |
| 40 CDPLAYER *ob_cdplayer; | |
| 41 } cdplayerobject; | |
| 42 | |
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43 static object *CdError; /* exception cd.error */ |
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44 |
| 820 | 45 static object * |
| 46 CD_allowremoval(self, args) | |
| 47 cdplayerobject *self; | |
| 48 object *args; | |
| 49 { | |
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50 if (!newgetargs(args, "")) |
| 820 | 51 return NULL; |
| 52 | |
| 53 CDallowremoval(self->ob_cdplayer); | |
| 54 | |
| 55 INCREF(None); | |
| 56 return None; | |
| 57 } | |
| 58 | |
| 59 static object * | |
| 60 CD_preventremoval(self, args) | |
| 61 cdplayerobject *self; | |
| 62 object *args; | |
| 63 { | |
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64 if (!newgetargs(args, "")) |
| 820 | 65 return NULL; |
| 66 | |
| 67 CDpreventremoval(self->ob_cdplayer); | |
| 68 | |
| 69 INCREF(None); | |
| 70 return None; | |
| 71 } | |
| 72 | |
| 73 static object * | |
| 74 CD_bestreadsize(self, args) | |
| 75 cdplayerobject *self; | |
| 76 object *args; | |
| 77 { | |
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78 if (!newgetargs(args, "")) |
| 820 | 79 return NULL; |
| 80 | |
| 81 return newintobject((long) CDbestreadsize(self->ob_cdplayer)); | |
| 82 } | |
| 83 | |
| 84 static object * | |
| 85 CD_close(self, args) | |
| 86 cdplayerobject *self; | |
| 87 object *args; | |
| 88 { | |
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89 if (!newgetargs(args, "")) |
| 820 | 90 return NULL; |
| 91 | |
| 92 if (!CDclose(self->ob_cdplayer)) { | |
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93 err_errno(CdError); /* XXX - ??? */ |
| 820 | 94 return NULL; |
| 95 } | |
| 96 self->ob_cdplayer = NULL; | |
| 97 | |
| 98 INCREF(None); | |
| 99 return None; | |
| 100 } | |
| 101 | |
| 102 static object * | |
| 103 CD_eject(self, args) | |
| 104 cdplayerobject *self; | |
| 105 object *args; | |
| 106 { | |
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107 CDSTATUS status; |
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108 |
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109 if (!newgetargs(args, "")) |
| 820 | 110 return NULL; |
| 111 | |
| 112 if (!CDeject(self->ob_cdplayer)) { | |
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113 if (CDgetstatus(self->ob_cdplayer, &status) && |
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114 status.state == CD_NODISC) |
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115 err_setstr(CdError, "no disc in player"); |
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116 else |
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117 err_setstr(CdError, "eject failed"); |
| 820 | 118 return NULL; |
| 119 } | |
| 120 | |
| 121 INCREF(None); | |
| 122 return None; | |
| 123 } | |
| 124 | |
| 125 static object * | |
| 126 CD_getstatus(self, args) | |
| 127 cdplayerobject *self; | |
| 128 object *args; | |
| 129 { | |
| 130 CDSTATUS status; | |
| 131 | |
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132 if (!newgetargs(args, "")) |
| 820 | 133 return NULL; |
| 134 | |
| 135 if (!CDgetstatus(self->ob_cdplayer, &status)) { | |
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136 err_errno(CdError); /* XXX - ??? */ |
| 820 | 137 return NULL; |
| 138 } | |
| 139 | |
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140 return mkvalue("(ii(iii)(iii)(iii)iiii)", status.state, |
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141 status.track, status.min, status.sec, status.frame, |
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142 status.abs_min, status.abs_sec, status.abs_frame, |
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143 status.total_min, status.total_sec, status.total_frame, |
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144 status.first, status.last, status.scsi_audio, |
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145 status.cur_block); |
| 820 | 146 } |
| 147 | |
| 148 static object * | |
| 149 CD_gettrackinfo(self, args) | |
| 150 cdplayerobject *self; | |
| 151 object *args; | |
| 152 { | |
| 153 int track; | |
| 154 CDTRACKINFO info; | |
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155 CDSTATUS status; |
| 820 | 156 |
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157 if (!newgetargs(args, "i", &track)) |
| 820 | 158 return NULL; |
| 159 | |
| 160 if (!CDgettrackinfo(self->ob_cdplayer, track, &info)) { | |
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161 if (CDgetstatus(self->ob_cdplayer, &status) && |
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162 status.state == CD_NODISC) |
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163 err_setstr(CdError, "no disc in player"); |
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164 else |
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165 err_setstr(CdError, "gettrackinfo failed"); |
| 820 | 166 return NULL; |
| 167 } | |
| 168 | |
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169 return mkvalue("((iii)(iii))", |
| 820 | 170 info.start_min, info.start_sec, info.start_frame, |
| 171 info.total_min, info.total_sec, info.total_frame); | |
| 172 } | |
| 173 | |
| 174 static object * | |
| 175 CD_msftoblock(self, args) | |
| 176 cdplayerobject *self; | |
| 177 object *args; | |
| 178 { | |
| 179 int min, sec, frame; | |
| 180 | |
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181 if (!newgetargs(args, "iii", &min, &sec, &frame)) |
| 820 | 182 return NULL; |
| 183 | |
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184 return newintobject((long) CDmsftoblock(self->ob_cdplayer, |
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185 min, sec, frame)); |
| 820 | 186 } |
| 187 | |
| 188 static object * | |
| 189 CD_play(self, args) | |
| 190 cdplayerobject *self; | |
| 191 object *args; | |
| 192 { | |
| 193 int start, play; | |
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194 CDSTATUS status; |
| 820 | 195 |
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196 if (!newgetargs(args, "ii", &start, &play)) |
| 820 | 197 return NULL; |
| 198 | |
| 199 if (!CDplay(self->ob_cdplayer, start, play)) { | |
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200 if (CDgetstatus(self->ob_cdplayer, &status) && |
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201 status.state == CD_NODISC) |
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202 err_setstr(CdError, "no disc in player"); |
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203 else |
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204 err_setstr(CdError, "play failed"); |
| 820 | 205 return NULL; |
| 206 } | |
| 207 | |
| 208 INCREF(None); | |
| 209 return None; | |
| 210 } | |
| 211 | |
| 212 static object * | |
| 213 CD_playabs(self, args) | |
| 214 cdplayerobject *self; | |
| 215 object *args; | |
| 216 { | |
| 217 int min, sec, frame, play; | |
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218 CDSTATUS status; |
| 820 | 219 |
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220 if (!newgetargs(args, "iiii", &min, &sec, &frame, &play)) |
| 820 | 221 return NULL; |
| 222 | |
| 223 if (!CDplayabs(self->ob_cdplayer, min, sec, frame, play)) { | |
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224 if (CDgetstatus(self->ob_cdplayer, &status) && |
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225 status.state == CD_NODISC) |
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226 err_setstr(CdError, "no disc in player"); |
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227 else |
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228 err_setstr(CdError, "playabs failed"); |
| 820 | 229 return NULL; |
| 230 } | |
| 231 | |
| 232 INCREF(None); | |
| 233 return None; | |
| 234 } | |
| 235 | |
| 236 static object * | |
| 237 CD_playtrack(self, args) | |
| 238 cdplayerobject *self; | |
| 239 object *args; | |
| 240 { | |
| 241 int start, play; | |
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242 CDSTATUS status; |
| 820 | 243 |
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244 if (!newgetargs(args, "ii", &start, &play)) |
| 820 | 245 return NULL; |
| 246 | |
| 247 if (!CDplaytrack(self->ob_cdplayer, start, play)) { | |
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248 if (CDgetstatus(self->ob_cdplayer, &status) && |
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249 status.state == CD_NODISC) |
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250 err_setstr(CdError, "no disc in player"); |
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251 else |
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252 err_setstr(CdError, "playtrack failed"); |
| 820 | 253 return NULL; |
| 254 } | |
| 255 | |
| 256 INCREF(None); | |
| 257 return None; | |
| 258 } | |
| 259 | |
| 260 static object * | |
| 261 CD_playtrackabs(self, args) | |
| 262 cdplayerobject *self; | |
| 263 object *args; | |
| 264 { | |
| 265 int track, min, sec, frame, play; | |
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266 CDSTATUS status; |
| 820 | 267 |
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268 if (!newgetargs(args, "iiiii", &track, &min, &sec, &frame, &play)) |
| 820 | 269 return NULL; |
| 270 | |
| 271 if (!CDplaytrackabs(self->ob_cdplayer, track, min, sec, frame, play)) { | |
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272 if (CDgetstatus(self->ob_cdplayer, &status) && |
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273 status.state == CD_NODISC) |
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274 err_setstr(CdError, "no disc in player"); |
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275 else |
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276 err_setstr(CdError, "playtrackabs failed"); |
| 820 | 277 return NULL; |
| 278 } | |
| 279 | |
| 280 INCREF(None); | |
| 281 return None; | |
| 282 } | |
| 283 | |
| 284 static object * | |
| 285 CD_readda(self, args) | |
| 286 cdplayerobject *self; | |
| 287 object *args; | |
| 288 { | |
| 289 int numframes, n; | |
| 290 object *result; | |
| 291 | |
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292 if (!newgetargs(args, "i", &numframes)) |
| 820 | 293 return NULL; |
| 294 | |
| 295 result = newsizedstringobject(NULL, numframes * sizeof(CDFRAME)); | |
| 296 if (result == NULL) | |
| 297 return NULL; | |
| 298 | |
| 299 n = CDreadda(self->ob_cdplayer, (CDFRAME *) getstringvalue(result), numframes); | |
| 300 if (n == -1) { | |
| 301 DECREF(result); | |
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302 err_errno(CdError); |
| 820 | 303 return NULL; |
| 304 } | |
| 305 if (n < numframes) | |
| 306 if (resizestring(&result, n * sizeof(CDFRAME))) | |
| 307 return NULL; | |
| 308 | |
| 309 return result; | |
| 310 } | |
| 311 | |
| 312 static object * | |
| 313 CD_seek(self, args) | |
| 314 cdplayerobject *self; | |
| 315 object *args; | |
| 316 { | |
| 317 int min, sec, frame; | |
| 318 long block; | |
| 319 | |
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320 if (!newgetargs(args, "iii", &min, &sec, &frame)) |
| 820 | 321 return NULL; |
| 322 | |
| 323 block = CDseek(self->ob_cdplayer, min, sec, frame); | |
| 324 if (block == -1) { | |
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325 err_errno(CdError); |
| 820 | 326 return NULL; |
| 327 } | |
| 328 | |
| 329 return newintobject(block); | |
| 330 } | |
| 331 | |
| 332 static object * | |
| 333 CD_seektrack(self, args) | |
| 334 cdplayerobject *self; | |
| 335 object *args; | |
| 336 { | |
| 337 int track; | |
| 338 long block; | |
| 339 | |
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340 if (!newgetargs(args, "i", &track)) |
| 820 | 341 return NULL; |
| 342 | |
| 343 block = CDseektrack(self->ob_cdplayer, track); | |
| 344 if (block == -1) { | |
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345 err_errno(CdError); |
| 820 | 346 return NULL; |
| 347 } | |
| 348 | |
| 349 return newintobject(block); | |
| 350 } | |
| 351 | |
| 352 static object * | |
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353 CD_seekblock(self, args) |
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354 cdplayerobject *self; |
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355 object *args; |
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356 { |
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357 unsigned long block; |
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358 |
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359 if (!newgetargs(args, "l", &block)) |
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360 return NULL; |
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361 |
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362 block = CDseekblock(self->ob_cdplayer, block); |
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363 if (block == (unsigned long) -1) { |
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364 err_errno(CdError); |
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365 return NULL; |
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366 } |
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367 |
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368 return newintobject(block); |
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369 } |
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370 |
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371 static object * |
| 820 | 372 CD_stop(self, args) |
| 373 cdplayerobject *self; | |
| 374 object *args; | |
| 375 { | |
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376 CDSTATUS status; |
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377 |
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378 if (!newgetargs(args, "")) |
| 820 | 379 return NULL; |
| 380 | |
| 381 if (!CDstop(self->ob_cdplayer)) { | |
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382 if (CDgetstatus(self->ob_cdplayer, &status) && |
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383 status.state == CD_NODISC) |
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384 err_setstr(CdError, "no disc in player"); |
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385 else |
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386 err_setstr(CdError, "stop failed"); |
| 820 | 387 return NULL; |
| 388 } | |
| 389 | |
| 390 INCREF(None); | |
| 391 return None; | |
| 392 } | |
| 393 | |
| 394 static object * | |
| 395 CD_togglepause(self, args) | |
| 396 cdplayerobject *self; | |
| 397 object *args; | |
| 398 { | |
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399 CDSTATUS status; |
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400 |
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401 if (!newgetargs(args, "")) |
| 820 | 402 return NULL; |
| 403 | |
| 404 if (!CDtogglepause(self->ob_cdplayer)) { | |
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405 if (CDgetstatus(self->ob_cdplayer, &status) && |
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406 status.state == CD_NODISC) |
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407 err_setstr(CdError, "no disc in player"); |
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408 else |
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409 err_setstr(CdError, "togglepause failed"); |
| 820 | 410 return NULL; |
| 411 } | |
| 412 | |
| 413 INCREF(None); | |
| 414 return None; | |
| 415 } | |
| 416 | |
| 417 static struct methodlist cdplayer_methods[] = { | |
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418 {"allowremoval", (method)CD_allowremoval, 1}, |
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419 {"bestreadsize", (method)CD_bestreadsize, 1}, |
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420 {"close", (method)CD_close, 1}, |
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421 {"eject", (method)CD_eject, 1}, |
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422 {"getstatus", (method)CD_getstatus, 1}, |
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423 {"gettrackinfo", (method)CD_gettrackinfo, 1}, |
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424 {"msftoblock", (method)CD_msftoblock, 1}, |
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425 {"play", (method)CD_play, 1}, |
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426 {"playabs", (method)CD_playabs, 1}, |
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427 {"playtrack", (method)CD_playtrack, 1}, |
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428 {"playtrackabs", (method)CD_playtrackabs, 1}, |
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429 {"preventremoval", (method)CD_preventremoval, 1}, |
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430 {"readda", (method)CD_readda, 1}, |
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431 {"seek", (method)CD_seek, 1}, |
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432 {"seekblock", (method)CD_seekblock, 1}, |
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433 {"seektrack", (method)CD_seektrack, 1}, |
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434 {"stop", (method)CD_stop, 1}, |
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435 {"togglepause", (method)CD_togglepause, 1}, |
| 820 | 436 {NULL, NULL} /* sentinel */ |
| 437 }; | |
| 438 | |
| 439 static void | |
| 440 cdplayer_dealloc(self) | |
| 441 cdplayerobject *self; | |
| 442 { | |
| 443 if (self->ob_cdplayer != NULL) | |
| 444 CDclose(self->ob_cdplayer); | |
| 445 DEL(self); | |
| 446 } | |
| 447 | |
| 448 static object * | |
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449 cdplayer_getattr(self, name) |
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450 cdplayerobject *self; |
| 820 | 451 char *name; |
| 452 { | |
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453 if (self->ob_cdplayer == NULL) { |
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454 err_setstr(RuntimeError, "no player active"); |
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455 return NULL; |
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456 } |
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457 return findmethod(cdplayer_methods, (object *)self, name); |
| 820 | 458 } |
| 459 | |
| 460 typeobject CdPlayertype = { | |
| 461 OB_HEAD_INIT(&Typetype) | |
| 462 0, /*ob_size*/ | |
| 463 "cdplayer", /*tp_name*/ | |
| 464 sizeof(cdplayerobject), /*tp_size*/ | |
| 465 0, /*tp_itemsize*/ | |
| 466 /* methods */ | |
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467 (destructor)cdplayer_dealloc, /*tp_dealloc*/ |
| 820 | 468 0, /*tp_print*/ |
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469 (getattrfunc)cdplayer_getattr, /*tp_getattr*/ |
| 820 | 470 0, /*tp_setattr*/ |
| 471 0, /*tp_compare*/ | |
| 472 0, /*tp_repr*/ | |
| 473 }; | |
| 474 | |
| 475 static object * | |
| 476 newcdplayerobject(cdp) | |
| 477 CDPLAYER *cdp; | |
| 478 { | |
| 479 cdplayerobject *p; | |
| 480 | |
| 481 p = NEWOBJ(cdplayerobject, &CdPlayertype); | |
| 482 if (p == NULL) | |
| 483 return NULL; | |
| 484 p->ob_cdplayer = cdp; | |
| 485 return (object *) p; | |
| 486 } | |
| 487 | |
| 488 static object * | |
| 489 CD_open(self, args) | |
| 490 object *self, *args; | |
| 491 { | |
| 492 char *dev, *direction; | |
| 493 CDPLAYER *cdp; | |
| 494 | |
| 495 /* | |
| 496 * Variable number of args. | |
| 497 * First defaults to "None", second defaults to "r". | |
| 498 */ | |
| 499 dev = NULL; | |
| 500 direction = "r"; | |
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501 if (!newgetargs(args, "|zs", &dev, &direction)) |
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502 return NULL; |
| 820 | 503 |
| 504 cdp = CDopen(dev, direction); | |
| 505 if (cdp == NULL) { | |
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506 err_errno(CdError); |
| 820 | 507 return NULL; |
| 508 } | |
| 509 | |
| 510 return newcdplayerobject(cdp); | |
| 511 } | |
| 512 | |
| 513 typedef struct { | |
| 514 OB_HEAD | |
| 515 CDPARSER *ob_cdparser; | |
| 516 struct { | |
| 517 object *ob_cdcallback; | |
| 518 object *ob_cdcallbackarg; | |
| 519 } ob_cdcallbacks[NCALLBACKS]; | |
| 520 } cdparserobject; | |
| 521 | |
| 522 static void | |
| 523 CD_callback(arg, type, data) | |
| 524 void *arg; | |
| 525 CDDATATYPES type; | |
| 526 void *data; | |
| 527 { | |
| 528 object *result, *args, *v; | |
| 529 char *p; | |
| 530 int i; | |
| 531 cdparserobject *self; | |
| 532 | |
| 533 self = (cdparserobject *) arg; | |
| 534 args = newtupleobject(3); | |
| 535 if (args == NULL) | |
| 536 return; | |
| 537 INCREF(self->ob_cdcallbacks[type].ob_cdcallbackarg); | |
| 538 settupleitem(args, 0, self->ob_cdcallbacks[type].ob_cdcallbackarg); | |
| 539 settupleitem(args, 1, newintobject((long) type)); | |
| 540 switch (type) { | |
| 541 case cd_audio: | |
| 542 v = newsizedstringobject(data, CDDA_DATASIZE); | |
| 543 break; | |
| 544 case cd_pnum: | |
| 545 case cd_index: | |
| 546 v = newintobject(((CDPROGNUM *) data)->value); | |
| 547 break; | |
| 548 case cd_ptime: | |
| 549 case cd_atime: | |
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550 #define ptr ((struct cdtimecode *) data) |
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551 v = mkvalue("(iii)", |
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552 ptr->mhi * 10 + ptr->mlo, |
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553 ptr->shi * 10 + ptr->slo, |
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554 ptr->fhi * 10 + ptr->flo); |
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555 #undef ptr |
| 820 | 556 break; |
| 557 case cd_catalog: | |
| 558 v = newsizedstringobject(NULL, 13); | |
| 559 p = getstringvalue(v); | |
| 560 for (i = 0; i < 13; i++) | |
| 561 *p++ = ((char *) data)[i] + '0'; | |
| 562 break; | |
| 563 case cd_ident: | |
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564 #define ptr ((struct cdident *) data) |
| 820 | 565 v = newsizedstringobject(NULL, 12); |
| 566 p = getstringvalue(v); | |
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567 CDsbtoa(p, ptr->country, 2); |
| 820 | 568 p += 2; |
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569 CDsbtoa(p, ptr->owner, 3); |
| 820 | 570 p += 3; |
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571 *p++ = ptr->year[0] + '0'; |
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572 *p++ = ptr->year[1] + '0'; |
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573 *p++ = ptr->serial[0] + '0'; |
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574 *p++ = ptr->serial[1] + '0'; |
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575 *p++ = ptr->serial[2] + '0'; |
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576 *p++ = ptr->serial[3] + '0'; |
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577 *p++ = ptr->serial[4] + '0'; |
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578 #undef ptr |
| 820 | 579 break; |
| 580 case cd_control: | |
| 581 v = newintobject((long) *((unchar *) data)); | |
| 582 break; | |
| 583 } | |
| 584 settupleitem(args, 2, v); | |
| 585 if (err_occurred()) { | |
| 586 DECREF(args); | |
| 587 return; | |
| 588 } | |
| 589 | |
| 590 result = call_object(self->ob_cdcallbacks[type].ob_cdcallback, args); | |
| 591 DECREF(args); | |
| 592 XDECREF(result); | |
| 593 } | |
| 594 | |
| 595 static object * | |
| 596 CD_deleteparser(self, args) | |
| 597 cdparserobject *self; | |
| 598 object *args; | |
| 599 { | |
| 600 int i; | |
| 601 | |
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602 if (!newgetargs(args, "")) |
| 820 | 603 return NULL; |
| 604 | |
| 605 CDdeleteparser(self->ob_cdparser); | |
| 606 self->ob_cdparser = NULL; | |
| 607 | |
| 608 /* no sense in keeping the callbacks, so remove them */ | |
| 609 for (i = 0; i < NCALLBACKS; i++) { | |
| 610 XDECREF(self->ob_cdcallbacks[i].ob_cdcallback); | |
| 611 self->ob_cdcallbacks[i].ob_cdcallback = NULL; | |
| 612 XDECREF(self->ob_cdcallbacks[i].ob_cdcallbackarg); | |
| 613 self->ob_cdcallbacks[i].ob_cdcallbackarg = NULL; | |
| 614 } | |
| 615 | |
| 616 INCREF(None); | |
| 617 return None; | |
| 618 } | |
| 619 | |
| 620 static object * | |
| 621 CD_parseframe(self, args) | |
| 622 cdparserobject *self; | |
| 623 object *args; | |
| 624 { | |
| 625 char *cdfp; | |
| 626 int length; | |
| 627 CDFRAME *p; | |
| 628 | |
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629 if (!newgetargs(args, "s#", &cdfp, &length)) |
| 820 | 630 return NULL; |
| 631 | |
| 632 if (length % sizeof(CDFRAME) != 0) { | |
|
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633 err_setstr(TypeError, "bad length"); |
| 820 | 634 return NULL; |
| 635 } | |
| 636 | |
| 637 p = (CDFRAME *) cdfp; | |
| 638 while (length > 0) { | |
| 639 CDparseframe(self->ob_cdparser, p); | |
| 640 length -= sizeof(CDFRAME); | |
| 641 p++; | |
| 642 if (err_occurred()) | |
| 643 return NULL; | |
| 644 } | |
| 645 | |
| 646 INCREF(None); | |
| 647 return None; | |
| 648 } | |
| 649 | |
| 650 static object * | |
| 651 CD_removecallback(self, args) | |
| 652 cdparserobject *self; | |
| 653 object *args; | |
| 654 { | |
| 655 int type; | |
| 656 | |
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657 if (!newgetargs(args, "i", &type)) |
| 820 | 658 return NULL; |
| 659 | |
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660 if (type < 0 || type >= NCALLBACKS) { |
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661 err_setstr(TypeError, "bad type"); |
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662 return NULL; |
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663 } |
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664 |
| 820 | 665 CDremovecallback(self->ob_cdparser, (CDDATATYPES) type); |
| 666 | |
| 667 XDECREF(self->ob_cdcallbacks[type].ob_cdcallback); | |
| 668 self->ob_cdcallbacks[type].ob_cdcallback = NULL; | |
| 669 | |
| 670 XDECREF(self->ob_cdcallbacks[type].ob_cdcallbackarg); | |
| 671 self->ob_cdcallbacks[type].ob_cdcallbackarg = NULL; | |
| 672 | |
| 673 INCREF(None); | |
| 674 return None; | |
| 675 } | |
| 676 | |
| 677 static object * | |
| 678 CD_resetparser(self, args) | |
| 679 cdparserobject *self; | |
| 680 object *args; | |
| 681 { | |
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682 if (!newgetargs(args, "")) |
| 820 | 683 return NULL; |
| 684 | |
| 685 CDresetparser(self->ob_cdparser); | |
| 686 | |
| 687 INCREF(None); | |
| 688 return None; | |
| 689 } | |
| 690 | |
| 691 static object * | |
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692 CD_addcallback(self, args) |
| 820 | 693 cdparserobject *self; |
| 694 object *args; | |
| 695 { | |
| 696 int type; | |
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697 object *func, *funcarg; |
| 820 | 698 |
| 699 /* XXX - more work here */ | |
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700 if (!newgetargs(args, "iOO", &type, &func, &funcarg)) |
| 820 | 701 return NULL; |
| 702 | |
| 703 if (type < 0 || type >= NCALLBACKS) { | |
|
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704 err_setstr(TypeError, "argument out of range"); |
| 820 | 705 return NULL; |
| 706 } | |
| 707 | |
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708 #ifdef CDsetcallback |
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709 CDaddcallback(self->ob_cdparser, (CDDATATYPES) type, CD_callback, (void *) self); |
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710 #else |
| 820 | 711 CDsetcallback(self->ob_cdparser, (CDDATATYPES) type, CD_callback, (void *) self); |
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712 #endif |
| 820 | 713 XDECREF(self->ob_cdcallbacks[type].ob_cdcallback); |
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714 INCREF(func); |
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715 self->ob_cdcallbacks[type].ob_cdcallback = func; |
| 820 | 716 XDECREF(self->ob_cdcallbacks[type].ob_cdcallbackarg); |
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717 INCREF(funcarg); |
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718 self->ob_cdcallbacks[type].ob_cdcallbackarg = funcarg; |
| 820 | 719 |
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720 /* |
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721 if (type == cd_audio) { |
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722 sigfpe_[_UNDERFL].repls = _ZERO; |
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723 handle_sigfpes(_ON, _EN_UNDERFL, NULL, _ABORT_ON_ERROR, NULL); |
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724 } |
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725 */ |
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726 |
| 820 | 727 INCREF(None); |
| 728 return None; | |
| 729 } | |
| 730 | |
| 731 static struct methodlist cdparser_methods[] = { | |
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732 {"addcallback", (method)CD_addcallback, 1}, |
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733 {"deleteparser", (method)CD_deleteparser, 1}, |
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734 {"parseframe", (method)CD_parseframe, 1}, |
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735 {"removecallback", (method)CD_removecallback, 1}, |
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736 {"resetparser", (method)CD_resetparser, 1}, |
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737 {"setcallback", (method)CD_addcallback, 1}, /* backward compatibility */ |
| 820 | 738 {NULL, NULL} /* sentinel */ |
| 739 }; | |
| 740 | |
| 741 static void | |
| 742 cdparser_dealloc(self) | |
| 743 cdparserobject *self; | |
| 744 { | |
| 745 int i; | |
| 746 | |
| 747 for (i = 0; i < NCALLBACKS; i++) { | |
| 748 XDECREF(self->ob_cdcallbacks[i].ob_cdcallback); | |
| 749 self->ob_cdcallbacks[i].ob_cdcallback = NULL; | |
| 750 XDECREF(self->ob_cdcallbacks[i].ob_cdcallbackarg); | |
| 751 self->ob_cdcallbacks[i].ob_cdcallbackarg = NULL; | |
| 752 } | |
| 753 CDdeleteparser(self->ob_cdparser); | |
| 754 DEL(self); | |
| 755 } | |
| 756 | |
| 757 static object * | |
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758 cdparser_getattr(self, name) |
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759 cdparserobject *self; |
| 820 | 760 char *name; |
| 761 { | |
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762 if (self->ob_cdparser == NULL) { |
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763 err_setstr(RuntimeError, "no parser active"); |
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764 return NULL; |
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765 } |
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766 |
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767 return findmethod(cdparser_methods, (object *)self, name); |
| 820 | 768 } |
| 769 | |
| 770 typeobject CdParsertype = { | |
| 771 OB_HEAD_INIT(&Typetype) | |
| 772 0, /*ob_size*/ | |
| 773 "cdparser", /*tp_name*/ | |
| 774 sizeof(cdparserobject), /*tp_size*/ | |
| 775 0, /*tp_itemsize*/ | |
| 776 /* methods */ | |
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777 (destructor)cdparser_dealloc, /*tp_dealloc*/ |
| 820 | 778 0, /*tp_print*/ |
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779 (getattrfunc)cdparser_getattr, /*tp_getattr*/ |
| 820 | 780 0, /*tp_setattr*/ |
| 781 0, /*tp_compare*/ | |
| 782 0, /*tp_repr*/ | |
| 783 }; | |
| 784 | |
| 785 static object * | |
| 786 newcdparserobject(cdp) | |
| 787 CDPARSER *cdp; | |
| 788 { | |
| 789 cdparserobject *p; | |
| 790 int i; | |
| 791 | |
| 792 p = NEWOBJ(cdparserobject, &CdParsertype); | |
| 793 if (p == NULL) | |
| 794 return NULL; | |
| 795 p->ob_cdparser = cdp; | |
| 796 for (i = 0; i < NCALLBACKS; i++) { | |
| 797 p->ob_cdcallbacks[i].ob_cdcallback = NULL; | |
| 798 p->ob_cdcallbacks[i].ob_cdcallbackarg = NULL; | |
| 799 } | |
| 800 return (object *) p; | |
| 801 } | |
| 802 | |
| 803 static object * | |
| 804 CD_createparser(self, args) | |
| 805 object *self, *args; | |
| 806 { | |
| 807 CDPARSER *cdp; | |
| 808 | |
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809 if (!newgetargs(args, "")) |
| 820 | 810 return NULL; |
| 811 cdp = CDcreateparser(); | |
| 812 if (cdp == NULL) { | |
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813 err_setstr(CdError, "createparser failed"); |
| 820 | 814 return NULL; |
| 815 } | |
| 816 | |
| 817 return newcdparserobject(cdp); | |
| 818 } | |
| 819 | |
| 820 static object * | |
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821 CD_msftoframe(self, args) |
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822 object *self, *args; |
| 820 | 823 { |
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824 int min, sec, frame; |
| 820 | 825 |
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826 if (!newgetargs(args, "iii", &min, &sec, &frame)) |
| 820 | 827 return NULL; |
| 828 | |
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829 return newintobject((long) CDmsftoframe(min, sec, frame)); |
| 820 | 830 } |
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831 |
| 820 | 832 static struct methodlist CD_methods[] = { |
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833 {"open", (method)CD_open, 1}, |
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834 {"createparser", (method)CD_createparser, 1}, |
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835 {"msftoframe", (method)CD_msftoframe, 1}, |
| 820 | 836 {NULL, NULL} /* Sentinel */ |
| 837 }; | |
| 838 | |
| 839 void | |
| 840 initcd() | |
| 841 { | |
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842 object *m, *d; |
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843 |
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844 m = initmodule("cd", CD_methods); |
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845 d = getmoduledict(m); |
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846 |
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847 CdError = newstringobject("cd.error"); |
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848 dictinsert(d, "error", CdError); |
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849 |
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850 /* Identifiers for the different types of callbacks from the parser */ |
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851 dictinsert(d, "audio", newintobject((long) cd_audio)); |
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852 dictinsert(d, "pnum", newintobject((long) cd_pnum)); |
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853 dictinsert(d, "index", newintobject((long) cd_index)); |
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854 dictinsert(d, "ptime", newintobject((long) cd_ptime)); |
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855 dictinsert(d, "atime", newintobject((long) cd_atime)); |
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856 dictinsert(d, "catalog", newintobject((long) cd_catalog)); |
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857 dictinsert(d, "ident", newintobject((long) cd_ident)); |
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858 dictinsert(d, "control", newintobject((long) cd_control)); |
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859 |
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860 /* Block size information for digital audio data */ |
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861 dictinsert(d, "DATASIZE", newintobject((long) CDDA_DATASIZE)); |
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862 dictinsert(d, "BLOCKSIZE", newintobject((long) CDDA_BLOCKSIZE)); |
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863 |
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864 /* Possible states for the cd player */ |
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865 dictinsert(d, "ERROR", newintobject((long) CD_ERROR)); |
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866 dictinsert(d, "NODISC", newintobject((long) CD_NODISC)); |
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867 dictinsert(d, "READY", newintobject((long) CD_READY)); |
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868 dictinsert(d, "PLAYING", newintobject((long) CD_PLAYING)); |
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869 dictinsert(d, "PAUSED", newintobject((long) CD_PAUSED)); |
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870 dictinsert(d, "STILL", newintobject((long) CD_STILL)); |
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871 #ifdef CD_CDROM /* only newer versions of the library */ |
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872 dictinsert(d, "CDROM", newintobject((long) CD_CDROM)); |
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873 #endif |
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874 |
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875 if (err_occurred()) |
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876 fatal("can't initialize module cd"); |
| 820 | 877 } |