Mercurial > sdl-ios-xcode
annotate src/cdrom/win32/SDL_syscdrom.c @ 1394:e57f8d1344b6
Set the install permissions correctly
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 20 Feb 2006 20:11:08 +0000 |
| parents | c0a74f199ecf |
| children | d910939febfa |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* Functions for system-level CD-ROM audio control */ | |
| 24 | |
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25 #include "SDL_windows.h" |
| 0 | 26 #include <mmsystem.h> |
| 27 | |
| 28 #include "SDL_cdrom.h" | |
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29 #include "../SDL_syscdrom.h" |
| 0 | 30 |
| 31 /* This really broken?? */ | |
| 32 #define BROKEN_MCI_PAUSE /* Pausing actually stops play -- Doh! */ | |
| 33 | |
| 34 /* The maximum number of CD-ROM drives we'll detect (Don't change!) */ | |
| 35 #define MAX_DRIVES 26 | |
| 36 | |
| 37 /* A list of available CD-ROM drives */ | |
| 38 static char *SDL_cdlist[MAX_DRIVES]; | |
| 39 static MCIDEVICEID SDL_mciID[MAX_DRIVES]; | |
| 40 #ifdef BROKEN_MCI_PAUSE | |
| 41 static int SDL_paused[MAX_DRIVES]; | |
| 42 #endif | |
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43 static int SDL_CD_end_position; |
| 0 | 44 |
| 45 /* The system-dependent CD control functions */ | |
| 46 static const char *SDL_SYS_CDName(int drive); | |
| 47 static int SDL_SYS_CDOpen(int drive); | |
| 48 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 49 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 50 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 51 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 52 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 53 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 54 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 55 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 56 | |
| 57 | |
| 58 /* Add a CD-ROM drive to our list of valid drives */ | |
| 59 static void AddDrive(char *drive) | |
| 60 { | |
| 61 int i; | |
| 62 | |
| 63 if ( SDL_numcds < MAX_DRIVES ) { | |
| 64 /* Add this drive to our list */ | |
| 65 i = SDL_numcds; | |
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66 SDL_cdlist[i] = SDL_strdup(drive); |
| 0 | 67 if ( SDL_cdlist[i] == NULL ) { |
| 68 SDL_OutOfMemory(); | |
| 69 return; | |
| 70 } | |
| 71 ++SDL_numcds; | |
| 72 #ifdef CDROM_DEBUG | |
| 73 fprintf(stderr, "Added CD-ROM drive: %s\n", drive); | |
| 74 #endif | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 int SDL_SYS_CDInit(void) | |
| 79 { | |
| 80 /* checklist: Drive 'A' - 'Z' */ | |
| 81 int i; | |
| 82 char drive[4]; | |
| 83 | |
| 84 /* Fill in our driver capabilities */ | |
| 85 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 86 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 87 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 88 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 89 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 90 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 91 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 92 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 93 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 94 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 95 | |
| 96 /* Scan the system for CD-ROM drives */ | |
| 97 for ( i='A'; i<='Z'; ++i ) { | |
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98 SDL_snprintf(drive, SDL_arraysize(drive), "%c:\\", i); |
| 0 | 99 if ( GetDriveType(drive) == DRIVE_CDROM ) { |
| 100 AddDrive(drive); | |
| 101 } | |
| 102 } | |
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103 SDL_memset(SDL_mciID, 0, sizeof(SDL_mciID)); |
| 0 | 104 return(0); |
| 105 } | |
| 106 | |
| 107 /* General ioctl() CD-ROM command function */ | |
| 108 static int SDL_SYS_CDioctl(int id, UINT msg, DWORD flags, void *arg) | |
| 109 { | |
| 110 MCIERROR mci_error; | |
| 111 | |
| 112 mci_error = mciSendCommand(SDL_mciID[id], msg, flags, (DWORD)arg); | |
| 113 if ( mci_error ) { | |
| 114 char error[256]; | |
| 115 | |
| 116 mciGetErrorString(mci_error, error, 256); | |
| 117 SDL_SetError("mciSendCommand() error: %s", error); | |
| 118 } | |
| 119 return(!mci_error ? 0 : -1); | |
| 120 } | |
| 121 | |
| 122 static const char *SDL_SYS_CDName(int drive) | |
| 123 { | |
| 124 return(SDL_cdlist[drive]); | |
| 125 } | |
| 126 | |
| 127 static int SDL_SYS_CDOpen(int drive) | |
| 128 { | |
| 129 MCI_OPEN_PARMS mci_open; | |
| 130 MCI_SET_PARMS mci_set; | |
| 131 char device[3]; | |
| 132 DWORD flags; | |
| 133 | |
| 134 /* Open the requested device */ | |
| 135 mci_open.lpstrDeviceType = (LPCSTR) MCI_DEVTYPE_CD_AUDIO; | |
| 136 device[0] = *SDL_cdlist[drive]; | |
| 137 device[1] = ':'; | |
| 138 device[2] = '\0'; | |
| 139 mci_open.lpstrElementName = device; | |
| 140 flags = | |
| 141 (MCI_OPEN_TYPE|MCI_OPEN_SHAREABLE|MCI_OPEN_TYPE_ID|MCI_OPEN_ELEMENT); | |
| 142 if ( SDL_SYS_CDioctl(0, MCI_OPEN, flags, &mci_open) < 0 ) { | |
| 143 flags &= ~MCI_OPEN_SHAREABLE; | |
| 144 if ( SDL_SYS_CDioctl(0, MCI_OPEN, flags, &mci_open) < 0 ) { | |
| 145 return(-1); | |
| 146 } | |
| 147 } | |
| 148 SDL_mciID[drive] = mci_open.wDeviceID; | |
| 149 | |
| 150 /* Set the minute-second-frame time format */ | |
| 151 mci_set.dwTimeFormat = MCI_FORMAT_MSF; | |
| 152 SDL_SYS_CDioctl(drive, MCI_SET, MCI_SET_TIME_FORMAT, &mci_set); | |
| 153 | |
| 154 #ifdef BROKEN_MCI_PAUSE | |
| 155 SDL_paused[drive] = 0; | |
| 156 #endif | |
| 157 return(drive); | |
| 158 } | |
| 159 | |
| 160 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 161 { | |
| 162 MCI_STATUS_PARMS mci_status; | |
| 163 int i, okay; | |
| 164 DWORD flags; | |
| 165 | |
| 166 okay = 0; | |
| 167 mci_status.dwItem = MCI_STATUS_NUMBER_OF_TRACKS; | |
| 168 flags = MCI_STATUS_ITEM | MCI_WAIT; | |
| 169 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, &mci_status) == 0 ) { | |
| 170 cdrom->numtracks = mci_status.dwReturn; | |
| 171 if ( cdrom->numtracks > SDL_MAX_TRACKS ) { | |
| 172 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 173 } | |
| 174 /* Read all the track TOC entries */ | |
| 175 flags = MCI_STATUS_ITEM | MCI_TRACK | MCI_WAIT; | |
| 176 for ( i=0; i<cdrom->numtracks; ++i ) { | |
| 177 cdrom->track[i].id = i+1; | |
| 178 mci_status.dwTrack = cdrom->track[i].id; | |
| 179 #ifdef MCI_CDA_STATUS_TYPE_TRACK | |
| 180 mci_status.dwItem = MCI_CDA_STATUS_TYPE_TRACK; | |
| 181 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, | |
| 182 &mci_status) < 0 ) { | |
| 183 break; | |
| 184 } | |
| 185 if ( mci_status.dwReturn == MCI_CDA_TRACK_AUDIO ) { | |
| 186 cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 187 } else { | |
| 188 cdrom->track[i].type = SDL_DATA_TRACK; | |
| 189 } | |
| 190 #else | |
| 191 cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 192 #endif | |
| 193 mci_status.dwItem = MCI_STATUS_POSITION; | |
| 194 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, | |
| 195 &mci_status) < 0 ) { | |
| 196 break; | |
| 197 } | |
| 198 cdrom->track[i].offset = MSF_TO_FRAMES( | |
| 199 MCI_MSF_MINUTE(mci_status.dwReturn), | |
| 200 MCI_MSF_SECOND(mci_status.dwReturn), | |
| 201 MCI_MSF_FRAME(mci_status.dwReturn)); | |
| 202 cdrom->track[i].length = 0; | |
| 203 if ( i > 0 ) { | |
| 204 cdrom->track[i-1].length = | |
| 205 cdrom->track[i].offset- | |
| 206 cdrom->track[i-1].offset; | |
| 207 } | |
| 208 } | |
| 209 if ( i == cdrom->numtracks ) { | |
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210 mci_status.dwTrack = cdrom->track[i - 1].id; |
| 0 | 211 mci_status.dwItem = MCI_STATUS_LENGTH; |
| 212 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, | |
| 213 &mci_status) == 0 ) { | |
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214 cdrom->track[i - 1].length = MSF_TO_FRAMES( |
| 0 | 215 MCI_MSF_MINUTE(mci_status.dwReturn), |
| 216 MCI_MSF_SECOND(mci_status.dwReturn), | |
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217 MCI_MSF_FRAME(mci_status.dwReturn)) + 1; /* +1 to fix */ |
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218 /* MCI last track length bug */ |
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219 /* compute lead-out offset */ |
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220 cdrom->track[i].offset = cdrom->track[i - 1].offset + |
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221 cdrom->track[i - 1].length; |
| 0 | 222 cdrom->track[i].length = 0; |
| 223 okay = 1; | |
| 224 } | |
| 225 } | |
| 226 } | |
| 227 return(okay ? 0 : -1); | |
| 228 } | |
| 229 | |
| 230 /* Get CD-ROM status */ | |
| 231 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 232 { | |
| 233 CDstatus status; | |
| 234 MCI_STATUS_PARMS mci_status; | |
| 235 DWORD flags; | |
| 236 | |
| 237 flags = MCI_STATUS_ITEM | MCI_WAIT; | |
| 238 mci_status.dwItem = MCI_STATUS_MODE; | |
| 239 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, &mci_status) < 0 ) { | |
| 240 status = CD_ERROR; | |
| 241 } else { | |
| 242 switch (mci_status.dwReturn) { | |
| 243 case MCI_MODE_NOT_READY: | |
| 244 case MCI_MODE_OPEN: | |
| 245 status = CD_TRAYEMPTY; | |
| 246 break; | |
| 247 case MCI_MODE_STOP: | |
| 248 #ifdef BROKEN_MCI_PAUSE | |
| 249 if ( SDL_paused[cdrom->id] ) { | |
| 250 status = CD_PAUSED; | |
| 251 } else { | |
| 252 status = CD_STOPPED; | |
| 253 } | |
| 254 #else | |
| 255 status = CD_STOPPED; | |
| 256 #endif /* BROKEN_MCI_PAUSE */ | |
| 257 break; | |
| 258 case MCI_MODE_PLAY: | |
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259 #ifdef BROKEN_MCI_PAUSE |
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260 if ( SDL_paused[cdrom->id] ) { |
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261 status = CD_PAUSED; |
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262 } else { |
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263 status = CD_PLAYING; |
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264 } |
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265 #else |
| 0 | 266 status = CD_PLAYING; |
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267 #endif /* BROKEN_MCI_PAUSE */ |
| 0 | 268 break; |
| 269 case MCI_MODE_PAUSE: | |
| 270 status = CD_PAUSED; | |
| 271 break; | |
| 272 default: | |
| 273 status = CD_ERROR; | |
| 274 break; | |
| 275 } | |
| 276 } | |
| 277 if ( position ) { | |
| 278 if ( status == CD_PLAYING || (status == CD_PAUSED) ) { | |
| 279 mci_status.dwItem = MCI_STATUS_POSITION; | |
| 280 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, | |
| 281 &mci_status) == 0 ) { | |
| 282 *position = MSF_TO_FRAMES( | |
| 283 MCI_MSF_MINUTE(mci_status.dwReturn), | |
| 284 MCI_MSF_SECOND(mci_status.dwReturn), | |
| 285 MCI_MSF_FRAME(mci_status.dwReturn)); | |
| 286 } else { | |
| 287 *position = 0; | |
| 288 } | |
| 289 } else { | |
| 290 *position = 0; | |
| 291 } | |
| 292 } | |
| 293 return(status); | |
| 294 } | |
| 295 | |
| 296 /* Start play */ | |
| 297 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 298 { | |
| 299 MCI_PLAY_PARMS mci_play; | |
| 300 int m, s, f; | |
| 301 DWORD flags; | |
| 302 | |
| 303 flags = MCI_FROM | MCI_TO | MCI_NOTIFY; | |
| 304 mci_play.dwCallback = 0; | |
| 305 FRAMES_TO_MSF(start, &m, &s, &f); | |
| 306 mci_play.dwFrom = MCI_MAKE_MSF(m, s, f); | |
| 307 FRAMES_TO_MSF(start+length, &m, &s, &f); | |
| 308 mci_play.dwTo = MCI_MAKE_MSF(m, s, f); | |
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309 SDL_CD_end_position = mci_play.dwTo; |
| 0 | 310 return(SDL_SYS_CDioctl(cdrom->id, MCI_PLAY, flags, &mci_play)); |
| 311 } | |
| 312 | |
| 313 /* Pause play */ | |
| 314 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 315 { | |
| 316 #ifdef BROKEN_MCI_PAUSE | |
| 317 SDL_paused[cdrom->id] = 1; | |
| 318 #endif | |
| 319 return(SDL_SYS_CDioctl(cdrom->id, MCI_PAUSE, MCI_WAIT, NULL)); | |
| 320 } | |
| 321 | |
| 322 /* Resume play */ | |
| 323 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 324 { | |
| 325 #ifdef BROKEN_MCI_PAUSE | |
| 326 MCI_STATUS_PARMS mci_status; | |
| 327 int okay; | |
| 328 int flags; | |
| 329 | |
| 330 okay = 0; | |
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331 /* Play from the current play position to the end position set earlier */ |
| 0 | 332 flags = MCI_STATUS_ITEM | MCI_WAIT; |
| 333 mci_status.dwItem = MCI_STATUS_POSITION; | |
| 334 if ( SDL_SYS_CDioctl(cdrom->id, MCI_STATUS, flags, &mci_status) == 0 ) { | |
| 335 MCI_PLAY_PARMS mci_play; | |
| 336 | |
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337 flags = MCI_FROM | MCI_TO | MCI_NOTIFY; |
| 0 | 338 mci_play.dwCallback = 0; |
| 339 mci_play.dwFrom = mci_status.dwReturn; | |
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340 mci_play.dwTo = SDL_CD_end_position; |
| 0 | 341 if (SDL_SYS_CDioctl(cdrom->id,MCI_PLAY,flags,&mci_play) == 0) { |
| 342 okay = 1; | |
| 343 SDL_paused[cdrom->id] = 0; | |
| 344 } | |
| 345 } | |
| 346 return(okay ? 0 : -1); | |
| 347 #else | |
| 348 return(SDL_SYS_CDioctl(cdrom->id, MCI_RESUME, MCI_WAIT, NULL)); | |
| 349 #endif /* BROKEN_MCI_PAUSE */ | |
| 350 } | |
| 351 | |
| 352 /* Stop play */ | |
| 353 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 354 { | |
| 355 return(SDL_SYS_CDioctl(cdrom->id, MCI_STOP, MCI_WAIT, NULL)); | |
| 356 } | |
| 357 | |
| 358 /* Eject the CD-ROM */ | |
| 359 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 360 { | |
| 361 return(SDL_SYS_CDioctl(cdrom->id, MCI_SET, MCI_SET_DOOR_OPEN, NULL)); | |
| 362 } | |
| 363 | |
| 364 /* Close the CD-ROM handle */ | |
| 365 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 366 { | |
| 367 SDL_SYS_CDioctl(cdrom->id, MCI_CLOSE, MCI_WAIT, NULL); | |
| 368 } | |
| 369 | |
| 370 void SDL_SYS_CDQuit(void) | |
| 371 { | |
| 372 int i; | |
| 373 | |
| 374 if ( SDL_numcds > 0 ) { | |
| 375 for ( i=0; i<SDL_numcds; ++i ) { | |
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376 SDL_free(SDL_cdlist[i]); |
| 0 | 377 } |
| 378 SDL_numcds = 0; | |
| 379 } | |
| 380 } |