Mercurial > sdl-ios-xcode
annotate src/cdrom/os2/SDL_syscdrom.c @ 1442:e3242177fe4a
Updated OS/2 build, yay!
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 26 Feb 2006 19:30:21 +0000 |
| parents | d910939febfa |
| children | 92947e3a18db |
| rev | line source |
|---|---|
| 1190 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 1190 | 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 |
| 1190 | 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. |
| 1190 | 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. |
| 1190 | 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 |
| 1190 | 18 |
| 19 Sam Lantinga | |
| 20 slouken@libsdl.org | |
| 21 */ | |
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22 #include "SDL_config.h" |
| 1190 | 23 |
| 24 /* Functions for system-level CD-ROM audio control */ | |
| 25 | |
| 26 #define INCL_MCIOS2 | |
| 27 #include <os2.h> | |
| 28 #include <os2me.h> | |
| 29 | |
| 30 #include "SDL_cdrom.h" | |
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31 #include "../SDL_syscdrom.h" |
| 1190 | 32 |
| 33 /* Size of MCI result buffer (in bytes) */ | |
| 34 #define MCI_CMDRETBUFSIZE 128 | |
| 35 | |
| 36 /* The maximum number of CD-ROM drives we'll detect */ | |
| 37 #define MAX_DRIVES 16 | |
| 38 | |
| 39 /* A list of available CD-ROM drives */ | |
| 40 static char *SDL_cdlist[MAX_DRIVES]; | |
| 41 //static dev_t SDL_cdmode[MAX_DRIVES]; | |
| 42 | |
| 43 /* The system-dependent CD control functions */ | |
| 44 static const char *SDL_SYS_CDName(int drive); | |
| 45 static int SDL_SYS_CDOpen(int drive); | |
| 46 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 47 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 48 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 49 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 50 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 51 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 52 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 53 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 54 | |
| 55 /* MCI Timing Functions */ | |
| 56 #define MCI_MMTIMEPERSECOND 3000 | |
| 57 #define FRAMESFROMMM(mmtime) (((mmtime)*CD_FPS)/MCI_MMTIMEPERSECOND) | |
| 58 | |
| 59 | |
| 60 /* Ready for MCI CDAudio Devices */ | |
| 61 int SDL_SYS_CDInit(void) | |
| 62 { | |
| 63 int i; /* generig counter */ | |
| 64 MCI_SYSINFO_PARMS msp; /* Structure to MCI SysInfo parameters */ | |
| 65 CHAR SysInfoRet[MCI_CMDRETBUFSIZE]; /* Buffer for MCI Command result */ | |
| 66 | |
| 67 /* Fill in our driver capabilities */ | |
| 68 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 69 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 70 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 71 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 72 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 73 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 74 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 75 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 76 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 77 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 78 | |
| 79 /* Get the number of CD ROMs in the System */ | |
| 80 /* Clean SysInfo structure */ | |
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81 SDL_memset(&msp, 0x00, sizeof(MCI_SYSINFO_PARMS)); |
| 1190 | 82 /* Prepare structure to Ask Numer of Audio CDs */ |
| 83 msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ | |
| 84 msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ | |
| 85 msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ | |
| 86 if (LOUSHORT(mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_QUANTITY | MCI_WAIT, (PVOID)&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
| 87 SDL_numcds = atoi(SysInfoRet); | |
| 88 if (SDL_numcds > MAX_DRIVES) SDL_numcds = MAX_DRIVES; /* Limit maximum CD number */ | |
| 89 | |
| 90 /* Get and Add their system name to the SDL_cdlist */ | |
| 91 msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ | |
| 92 msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ | |
| 93 msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ | |
| 94 for (i=0; i<SDL_numcds; i++) | |
| 95 { | |
| 96 msp.ulNumber = i+1; | |
| 97 mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_NAME | MCI_WAIT,&msp, 0); | |
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98 SDL_cdlist[i] = SDL_strdup(SysInfoRet); |
| 1190 | 99 if ( SDL_cdlist[i] == NULL ) |
| 100 { | |
| 101 SDL_OutOfMemory(); | |
| 102 return(-1); | |
| 103 } | |
| 104 } | |
| 105 return(0); | |
| 106 } | |
| 107 | |
| 108 /* Return CDAudio System Dependent Device Name - Ready for MCI*/ | |
| 109 static const char *SDL_SYS_CDName(int drive) | |
| 110 { | |
| 111 return(SDL_cdlist[drive]); | |
| 112 } | |
| 113 | |
| 114 /* Open CDAudio Device - Ready for MCI */ | |
| 115 static int SDL_SYS_CDOpen(int drive) | |
| 116 { | |
| 117 MCI_OPEN_PARMS mop; | |
| 118 MCI_SET_PARMS msp; | |
| 119 MCI_GENERIC_PARMS mgp; | |
| 120 | |
| 121 /* Open the device */ | |
| 122 mop.hwndCallback = (HWND)NULL; // None | |
| 123 mop.usDeviceID = (USHORT)NULL; // Will be returned. | |
| 124 mop.pszDeviceType = (PSZ)SDL_cdlist[drive]; // CDAudio Device | |
| 125 if (LOUSHORT(mciSendCommand(0,MCI_OPEN,MCI_WAIT,&mop, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
| 126 /* Set time format */ | |
| 127 msp.hwndCallback = (HWND)NULL; // None | |
| 128 msp.ulTimeFormat = MCI_FORMAT_MSF; // Minute : Second : Frame structure | |
| 129 msp.ulSpeedFormat = (ULONG)NULL; // No change | |
| 130 msp.ulAudio = (ULONG)NULL; // No Channel | |
| 131 msp.ulLevel = (ULONG)NULL; // No Volume | |
| 132 msp.ulOver = (ULONG)NULL; // No Delay | |
| 133 msp.ulItem = (ULONG)NULL; // No item | |
| 134 msp.ulValue = (ULONG)NULL; // No value for item flag | |
| 135 if (LOUSHORT(mciSendCommand(mop.usDeviceID,MCI_SET,MCI_WAIT | MCI_SET_TIME_FORMAT,&msp, 0)) == MCIERR_SUCCESS) return (mop.usDeviceID); | |
| 136 /* Error setting time format? - Close opened device */ | |
| 137 mgp.hwndCallback = (HWND)NULL; // None | |
| 138 mciSendCommand(mop.usDeviceID,MCI_CLOSE,MCI_WAIT,&mgp, 0); | |
| 139 return(CD_ERROR); | |
| 140 } | |
| 141 | |
| 142 /* Get CD Table Of Contents - Ready for MCI */ | |
| 143 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 144 { | |
| 145 MCI_TOC_PARMS mtp; | |
| 146 MCI_STATUS_PARMS msp; | |
| 147 MCI_TOC_REC * mtr; | |
| 148 INT i; | |
| 149 | |
| 150 /* Correction because MCI cannot read TOC while CD is playing (it'll stop!) */ | |
| 151 if (cdrom->status == CD_PLAYING || cdrom->status == CD_PAUSED) return 0; | |
| 152 | |
| 153 /* Get Number of Tracks */ | |
| 154 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 155 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 156 msp.ulItem = MCI_STATUS_NUMBER_OF_TRACKS; | |
| 157 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 158 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
| 159 cdrom->numtracks = msp.ulReturn; | |
| 160 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
| 161 { | |
| 162 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 163 } | |
| 164 /* Alocate space for TOC data */ | |
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165 mtr = (MCI_TOC_REC *)SDL_malloc(cdrom->numtracks*sizeof(MCI_TOC_REC)); |
| 1190 | 166 if ( mtr == NULL ) |
| 167 { | |
| 168 SDL_OutOfMemory(); | |
| 169 return(-1); | |
| 170 } | |
| 171 /* Get TOC from CD */ | |
| 172 mtp.pBuf = mtr; | |
| 173 mtp.ulBufSize = cdrom->numtracks*sizeof(MCI_TOC_REC); | |
| 174 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_GETTOC,MCI_WAIT,&mtp, 0)) != MCIERR_SUCCESS) | |
| 175 { | |
| 176 SDL_OutOfMemory(); | |
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177 SDL_free(mtr); |
| 1190 | 178 return(CD_ERROR); |
| 179 } | |
| 180 /* Fill SDL Tracks Structure */ | |
| 181 for (i=0; i<cdrom->numtracks; i++) | |
| 182 { | |
| 183 /* Set Track ID */ | |
| 184 cdrom->track[i].id = (mtr+i)->TrackNum; | |
| 185 /* Set Track Type */ | |
| 186 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 187 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 188 msp.ulItem = MCI_CD_STATUS_TRACK_TYPE; | |
| 189 msp.ulValue = (ULONG)((mtr+i)->TrackNum); /* Track Number? */ | |
| 190 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_TRACK | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) | |
| 191 { | |
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192 SDL_free(mtr); |
| 1190 | 193 return (CD_ERROR); |
| 194 } | |
| 195 if (msp.ulReturn==MCI_CD_TRACK_AUDIO) cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 196 else cdrom->track[i].type = SDL_DATA_TRACK; | |
| 197 /* Set Track Length - values from MCI are in MMTIMEs - 3000 MMTIME = 1 second */ | |
| 198 cdrom->track[i].length = FRAMESFROMMM((mtr+i)->ulEndAddr - (mtr+i)->ulStartAddr); | |
| 199 /* Set Track Offset */ | |
| 200 cdrom->track[i].offset = FRAMESFROMMM((mtr+i)->ulStartAddr); | |
| 201 } | |
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202 SDL_free(mtr); |
| 1190 | 203 return(0); |
| 204 } | |
| 205 | |
| 206 | |
| 207 /* Get CD-ROM status - Ready for MCI */ | |
| 208 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 209 { | |
| 210 CDstatus status; | |
| 211 MCI_STATUS_PARMS msp; | |
| 212 | |
| 213 /* Get Status from MCI */ | |
| 214 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 215 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 216 msp.ulItem = MCI_STATUS_MODE; | |
| 217 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 218 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) status = CD_ERROR; | |
| 219 else | |
| 220 { | |
| 221 switch(msp.ulReturn) | |
| 222 { | |
| 223 case MCI_MODE_NOT_READY: | |
| 224 status = CD_TRAYEMPTY; | |
| 225 break; | |
| 226 case MCI_MODE_PAUSE: | |
| 227 status = CD_PAUSED; | |
| 228 break; | |
| 229 case MCI_MODE_PLAY: | |
| 230 status = CD_PLAYING; | |
| 231 break; | |
| 232 case MCI_MODE_STOP: | |
| 233 status = CD_STOPPED; | |
| 234 break; | |
| 235 /* These cases should not occour */ | |
| 236 case MCI_MODE_RECORD: | |
| 237 case MCI_MODE_SEEK: | |
| 238 default: | |
| 239 status = CD_ERROR; | |
| 240 break; | |
| 241 } | |
| 242 } | |
| 243 | |
| 244 /* Determine position */ | |
| 245 if (position != NULL) /* The SDL $&$&%# CDROM call sends NULL pointer here! */ | |
| 246 { | |
| 247 if ((status == CD_PLAYING) || (status == CD_PAUSED)) | |
| 248 { | |
| 249 /* Get Position */ | |
| 250 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 251 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 252 msp.ulItem = MCI_STATUS_POSITION; | |
| 253 msp.ulValue = (ULONG)NULL; /* No additiona info */ | |
| 254 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return (CD_ERROR); | |
| 255 /* Convert from MSF (format selected in the Open process) to Frames (format that will be returned) */ | |
| 256 *position = MSF_TO_FRAMES(MSF_MINUTE(msp.ulReturn),MSF_SECOND(msp.ulReturn),MSF_FRAME(msp.ulReturn)); | |
| 257 } | |
| 258 else *position = 0; | |
| 259 } | |
| 260 return(status); | |
| 261 } | |
| 262 | |
| 263 /* Start play - Ready for MCI */ | |
| 264 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 265 { | |
| 266 MCI_GENERIC_PARMS mgp; | |
| 267 MCI_STATUS_PARMS msp; | |
| 268 MCI_PLAY_PARMS mpp; | |
| 269 ULONG min,sec,frm; | |
| 270 | |
| 271 /* Start MSF */ | |
| 272 FRAMES_TO_MSF(start, &min, &sec, &frm); | |
| 273 MSF_MINUTE(mpp.ulFrom) = min; | |
| 274 MSF_SECOND(mpp.ulFrom) = sec; | |
| 275 MSF_FRAME(mpp.ulFrom) = frm; | |
| 276 /* End MSF */ | |
| 277 FRAMES_TO_MSF(start+length, &min, &sec, &frm); | |
| 278 MSF_MINUTE(mpp.ulTo) = min; | |
| 279 MSF_SECOND(mpp.ulTo) = sec; | |
| 280 MSF_FRAME(mpp.ulTo) = frm; | |
| 281 #ifdef DEBUG_CDROM | |
| 282 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", | |
| 283 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, | |
| 284 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); | |
| 285 #endif | |
| 286 /* Verifies if it is paused first... and if it is, unpause before stopping it. */ | |
| 287 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 288 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 289 msp.ulItem = MCI_STATUS_MODE; | |
| 290 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 291 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) | |
| 292 { | |
| 293 if (msp.ulReturn == MCI_MODE_PAUSE) | |
| 294 { | |
| 295 mgp.hwndCallback = (HWND)NULL; // None | |
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296 mciSendCommand(cdrom->id,MCI_RESUME,0,&mgp, 0); |
| 1190 | 297 } |
| 298 } | |
| 299 /* Now play it. */ | |
| 300 mpp.hwndCallback = (HWND)NULL; // We do not want the info. temp | |
| 301 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PLAY,MCI_FROM | MCI_TO,&mpp, 0)) == MCIERR_SUCCESS) return 0; | |
| 302 return (CD_ERROR); | |
| 303 } | |
| 304 | |
| 305 /* Pause play - Ready for MCI */ | |
| 306 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 307 { | |
| 308 MCI_GENERIC_PARMS mgp; | |
| 309 | |
| 310 mgp.hwndCallback = (HWND)NULL; // None | |
| 311 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PAUSE,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
| 312 return(CD_ERROR); | |
| 313 } | |
| 314 | |
| 315 /* Resume play - Ready for MCI */ | |
| 316 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 317 { | |
| 318 MCI_GENERIC_PARMS mgp; | |
| 319 | |
| 320 mgp.hwndCallback = (HWND)NULL; // None | |
| 321 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_RESUME,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
| 322 return(CD_ERROR); | |
| 323 } | |
| 324 | |
| 325 /* Stop play - Ready for MCI */ | |
| 326 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 327 { | |
| 328 MCI_GENERIC_PARMS mgp; | |
| 329 MCI_STATUS_PARMS msp; | |
| 330 | |
| 331 /* Verifies if it is paused first... and if it is, unpause before stopping it. */ | |
| 332 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 333 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 334 msp.ulItem = MCI_STATUS_MODE; | |
| 335 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 336 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) | |
| 337 { | |
| 338 if (msp.ulReturn == MCI_MODE_PAUSE) | |
| 339 { | |
| 340 mgp.hwndCallback = (HWND)NULL; // None | |
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341 mciSendCommand(cdrom->id,MCI_RESUME,0,&mgp, 0); |
| 1190 | 342 } |
| 343 } | |
| 344 /* Now stops the media */ | |
| 345 mgp.hwndCallback = (HWND)NULL; // None | |
| 346 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STOP,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
| 347 return(CD_ERROR); | |
| 348 } | |
| 349 | |
| 350 /* Eject the CD-ROM - Ready for MCI */ | |
| 351 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 352 { | |
| 353 MCI_SET_PARMS msp; | |
| 354 | |
| 355 msp.hwndCallback = (HWND)NULL; // None | |
| 356 msp.ulTimeFormat = (ULONG)NULL; // No change | |
| 357 msp.ulSpeedFormat = (ULONG)NULL; // No change | |
| 358 msp.ulAudio = (ULONG)NULL; // No Channel | |
| 359 msp.ulLevel = (ULONG)NULL; // No Volume | |
| 360 msp.ulOver = (ULONG)NULL; // No Delay | |
| 361 msp.ulItem = (ULONG)NULL; // No item | |
| 362 msp.ulValue = (ULONG)NULL; // No value for item flag | |
| 363 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_SET,MCI_WAIT | MCI_SET_DOOR_OPEN,&msp, 0)) == MCIERR_SUCCESS) return 0; | |
| 364 return(CD_ERROR); | |
| 365 } | |
| 366 | |
| 367 /* Close the CD-ROM handle - Ready for MCI */ | |
| 368 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 369 { | |
| 370 MCI_GENERIC_PARMS mgp; | |
| 371 | |
| 372 mgp.hwndCallback = (HWND)NULL; // None | |
| 373 mciSendCommand(cdrom->id,MCI_CLOSE,MCI_WAIT,&mgp, 0); | |
| 374 } | |
| 375 | |
| 376 /* Finalize CDROM Subsystem - Ready for MCI */ | |
| 377 void SDL_SYS_CDQuit(void) | |
| 378 { | |
| 379 int i; | |
| 380 | |
| 381 if ( SDL_numcds > 0 ) | |
| 382 { | |
| 383 for ( i=0; i<SDL_numcds; ++i ) | |
| 384 { | |
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385 SDL_free(SDL_cdlist[i]); |
| 1190 | 386 } |
| 387 SDL_numcds = 0; | |
| 388 } | |
| 389 } | |
| 390 |