Mercurial > sdl-ios-xcode
annotate src/cdrom/os2/SDL_syscdrom.c @ 1336:3692456e7b0f
Use SDL_ prefixed versions of C library functions.
FIXME:
Change #include <stdlib.h> to #include "SDL_stdlib.h"
Change #include <string.h> to #include "SDL_string.h"
Make sure nothing else broke because of this...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 07 Feb 2006 06:59:48 +0000 |
| parents | c9b51268668f |
| children | 604d73db6802 |
| 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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c9b51268668f
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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 */ | |
| 22 | |
| 23 /* Functions for system-level CD-ROM audio control */ | |
| 24 | |
| 25 #define INCL_MCIOS2 | |
| 26 #include <os2.h> | |
| 27 #include <os2me.h> | |
| 28 #include <stdio.h> | |
| 29 #include <stdlib.h> | |
| 30 #include <string.h> | |
| 31 | |
| 32 #include "SDL_error.h" | |
| 33 #include "SDL_cdrom.h" | |
| 34 #include "SDL_syscdrom.h" | |
| 35 | |
| 36 /* Size of MCI result buffer (in bytes) */ | |
| 37 #define MCI_CMDRETBUFSIZE 128 | |
| 38 | |
| 39 /* The maximum number of CD-ROM drives we'll detect */ | |
| 40 #define MAX_DRIVES 16 | |
| 41 | |
| 42 /* A list of available CD-ROM drives */ | |
| 43 static char *SDL_cdlist[MAX_DRIVES]; | |
| 44 //static dev_t SDL_cdmode[MAX_DRIVES]; | |
| 45 | |
| 46 /* The system-dependent CD control functions */ | |
| 47 static const char *SDL_SYS_CDName(int drive); | |
| 48 static int SDL_SYS_CDOpen(int drive); | |
| 49 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 50 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 51 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 52 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 53 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 54 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 55 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 56 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 57 | |
| 58 /* MCI Timing Functions */ | |
| 59 #define MCI_MMTIMEPERSECOND 3000 | |
| 60 #define FRAMESFROMMM(mmtime) (((mmtime)*CD_FPS)/MCI_MMTIMEPERSECOND) | |
| 61 | |
| 62 | |
| 63 /* Ready for MCI CDAudio Devices */ | |
| 64 int SDL_SYS_CDInit(void) | |
| 65 { | |
| 66 int i; /* generig counter */ | |
| 67 MCI_SYSINFO_PARMS msp; /* Structure to MCI SysInfo parameters */ | |
| 68 CHAR SysInfoRet[MCI_CMDRETBUFSIZE]; /* Buffer for MCI Command result */ | |
| 69 | |
| 70 /* Fill in our driver capabilities */ | |
| 71 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 72 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 73 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 74 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 75 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 76 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 77 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 78 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 79 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 80 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 81 | |
| 82 /* Get the number of CD ROMs in the System */ | |
| 83 /* Clean SysInfo structure */ | |
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84 SDL_memset(&msp, 0x00, sizeof(MCI_SYSINFO_PARMS)); |
| 1190 | 85 /* Prepare structure to Ask Numer of Audio CDs */ |
| 86 msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ | |
| 87 msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ | |
| 88 msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ | |
| 89 if (LOUSHORT(mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_QUANTITY | MCI_WAIT, (PVOID)&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
| 90 SDL_numcds = atoi(SysInfoRet); | |
| 91 if (SDL_numcds > MAX_DRIVES) SDL_numcds = MAX_DRIVES; /* Limit maximum CD number */ | |
| 92 | |
| 93 /* Get and Add their system name to the SDL_cdlist */ | |
| 94 msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ | |
| 95 msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ | |
| 96 msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ | |
| 97 for (i=0; i<SDL_numcds; i++) | |
| 98 { | |
| 99 msp.ulNumber = i+1; | |
| 100 mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_NAME | MCI_WAIT,&msp, 0); | |
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101 SDL_cdlist[i] = (char *)SDL_malloc(SDL_strlen(SysInfoRet)+1); |
| 1190 | 102 if ( SDL_cdlist[i] == NULL ) |
| 103 { | |
| 104 SDL_OutOfMemory(); | |
| 105 return(-1); | |
| 106 } | |
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107 SDL_strcpy(SDL_cdlist[i], SysInfoRet); |
| 1190 | 108 } |
| 109 return(0); | |
| 110 } | |
| 111 | |
| 112 /* Return CDAudio System Dependent Device Name - Ready for MCI*/ | |
| 113 static const char *SDL_SYS_CDName(int drive) | |
| 114 { | |
| 115 return(SDL_cdlist[drive]); | |
| 116 } | |
| 117 | |
| 118 /* Open CDAudio Device - Ready for MCI */ | |
| 119 static int SDL_SYS_CDOpen(int drive) | |
| 120 { | |
| 121 MCI_OPEN_PARMS mop; | |
| 122 MCI_SET_PARMS msp; | |
| 123 MCI_GENERIC_PARMS mgp; | |
| 124 | |
| 125 /* Open the device */ | |
| 126 mop.hwndCallback = (HWND)NULL; // None | |
| 127 mop.usDeviceID = (USHORT)NULL; // Will be returned. | |
| 128 mop.pszDeviceType = (PSZ)SDL_cdlist[drive]; // CDAudio Device | |
| 129 if (LOUSHORT(mciSendCommand(0,MCI_OPEN,MCI_WAIT,&mop, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
| 130 /* Set time format */ | |
| 131 msp.hwndCallback = (HWND)NULL; // None | |
| 132 msp.ulTimeFormat = MCI_FORMAT_MSF; // Minute : Second : Frame structure | |
| 133 msp.ulSpeedFormat = (ULONG)NULL; // No change | |
| 134 msp.ulAudio = (ULONG)NULL; // No Channel | |
| 135 msp.ulLevel = (ULONG)NULL; // No Volume | |
| 136 msp.ulOver = (ULONG)NULL; // No Delay | |
| 137 msp.ulItem = (ULONG)NULL; // No item | |
| 138 msp.ulValue = (ULONG)NULL; // No value for item flag | |
| 139 if (LOUSHORT(mciSendCommand(mop.usDeviceID,MCI_SET,MCI_WAIT | MCI_SET_TIME_FORMAT,&msp, 0)) == MCIERR_SUCCESS) return (mop.usDeviceID); | |
| 140 /* Error setting time format? - Close opened device */ | |
| 141 mgp.hwndCallback = (HWND)NULL; // None | |
| 142 mciSendCommand(mop.usDeviceID,MCI_CLOSE,MCI_WAIT,&mgp, 0); | |
| 143 return(CD_ERROR); | |
| 144 } | |
| 145 | |
| 146 /* Get CD Table Of Contents - Ready for MCI */ | |
| 147 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 148 { | |
| 149 MCI_TOC_PARMS mtp; | |
| 150 MCI_STATUS_PARMS msp; | |
| 151 MCI_TOC_REC * mtr; | |
| 152 INT i; | |
| 153 | |
| 154 /* Correction because MCI cannot read TOC while CD is playing (it'll stop!) */ | |
| 155 if (cdrom->status == CD_PLAYING || cdrom->status == CD_PAUSED) return 0; | |
| 156 | |
| 157 /* Get Number of Tracks */ | |
| 158 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 159 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 160 msp.ulItem = MCI_STATUS_NUMBER_OF_TRACKS; | |
| 161 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 162 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
| 163 cdrom->numtracks = msp.ulReturn; | |
| 164 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
| 165 { | |
| 166 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 167 } | |
| 168 /* Alocate space for TOC data */ | |
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169 mtr = (MCI_TOC_REC *)SDL_malloc(cdrom->numtracks*sizeof(MCI_TOC_REC)); |
| 1190 | 170 if ( mtr == NULL ) |
| 171 { | |
| 172 SDL_OutOfMemory(); | |
| 173 return(-1); | |
| 174 } | |
| 175 /* Get TOC from CD */ | |
| 176 mtp.pBuf = mtr; | |
| 177 mtp.ulBufSize = cdrom->numtracks*sizeof(MCI_TOC_REC); | |
| 178 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_GETTOC,MCI_WAIT,&mtp, 0)) != MCIERR_SUCCESS) | |
| 179 { | |
| 180 SDL_OutOfMemory(); | |
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181 SDL_free(mtr); |
| 1190 | 182 return(CD_ERROR); |
| 183 } | |
| 184 /* Fill SDL Tracks Structure */ | |
| 185 for (i=0; i<cdrom->numtracks; i++) | |
| 186 { | |
| 187 /* Set Track ID */ | |
| 188 cdrom->track[i].id = (mtr+i)->TrackNum; | |
| 189 /* Set Track Type */ | |
| 190 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 191 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 192 msp.ulItem = MCI_CD_STATUS_TRACK_TYPE; | |
| 193 msp.ulValue = (ULONG)((mtr+i)->TrackNum); /* Track Number? */ | |
| 194 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_TRACK | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) | |
| 195 { | |
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196 SDL_free(mtr); |
| 1190 | 197 return (CD_ERROR); |
| 198 } | |
| 199 if (msp.ulReturn==MCI_CD_TRACK_AUDIO) cdrom->track[i].type = SDL_AUDIO_TRACK; | |
| 200 else cdrom->track[i].type = SDL_DATA_TRACK; | |
| 201 /* Set Track Length - values from MCI are in MMTIMEs - 3000 MMTIME = 1 second */ | |
| 202 cdrom->track[i].length = FRAMESFROMMM((mtr+i)->ulEndAddr - (mtr+i)->ulStartAddr); | |
| 203 /* Set Track Offset */ | |
| 204 cdrom->track[i].offset = FRAMESFROMMM((mtr+i)->ulStartAddr); | |
| 205 } | |
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206 SDL_free(mtr); |
| 1190 | 207 return(0); |
| 208 } | |
| 209 | |
| 210 | |
| 211 /* Get CD-ROM status - Ready for MCI */ | |
| 212 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 213 { | |
| 214 CDstatus status; | |
| 215 MCI_STATUS_PARMS msp; | |
| 216 | |
| 217 /* Get Status from MCI */ | |
| 218 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 219 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 220 msp.ulItem = MCI_STATUS_MODE; | |
| 221 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 222 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) status = CD_ERROR; | |
| 223 else | |
| 224 { | |
| 225 switch(msp.ulReturn) | |
| 226 { | |
| 227 case MCI_MODE_NOT_READY: | |
| 228 status = CD_TRAYEMPTY; | |
| 229 break; | |
| 230 case MCI_MODE_PAUSE: | |
| 231 status = CD_PAUSED; | |
| 232 break; | |
| 233 case MCI_MODE_PLAY: | |
| 234 status = CD_PLAYING; | |
| 235 break; | |
| 236 case MCI_MODE_STOP: | |
| 237 status = CD_STOPPED; | |
| 238 break; | |
| 239 /* These cases should not occour */ | |
| 240 case MCI_MODE_RECORD: | |
| 241 case MCI_MODE_SEEK: | |
| 242 default: | |
| 243 status = CD_ERROR; | |
| 244 break; | |
| 245 } | |
| 246 } | |
| 247 | |
| 248 /* Determine position */ | |
| 249 if (position != NULL) /* The SDL $&$&%# CDROM call sends NULL pointer here! */ | |
| 250 { | |
| 251 if ((status == CD_PLAYING) || (status == CD_PAUSED)) | |
| 252 { | |
| 253 /* Get Position */ | |
| 254 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 255 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 256 msp.ulItem = MCI_STATUS_POSITION; | |
| 257 msp.ulValue = (ULONG)NULL; /* No additiona info */ | |
| 258 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return (CD_ERROR); | |
| 259 /* Convert from MSF (format selected in the Open process) to Frames (format that will be returned) */ | |
| 260 *position = MSF_TO_FRAMES(MSF_MINUTE(msp.ulReturn),MSF_SECOND(msp.ulReturn),MSF_FRAME(msp.ulReturn)); | |
| 261 } | |
| 262 else *position = 0; | |
| 263 } | |
| 264 return(status); | |
| 265 } | |
| 266 | |
| 267 /* Start play - Ready for MCI */ | |
| 268 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 269 { | |
| 270 MCI_GENERIC_PARMS mgp; | |
| 271 MCI_STATUS_PARMS msp; | |
| 272 MCI_PLAY_PARMS mpp; | |
| 273 ULONG min,sec,frm; | |
| 274 | |
| 275 /* Start MSF */ | |
| 276 FRAMES_TO_MSF(start, &min, &sec, &frm); | |
| 277 MSF_MINUTE(mpp.ulFrom) = min; | |
| 278 MSF_SECOND(mpp.ulFrom) = sec; | |
| 279 MSF_FRAME(mpp.ulFrom) = frm; | |
| 280 /* End MSF */ | |
| 281 FRAMES_TO_MSF(start+length, &min, &sec, &frm); | |
| 282 MSF_MINUTE(mpp.ulTo) = min; | |
| 283 MSF_SECOND(mpp.ulTo) = sec; | |
| 284 MSF_FRAME(mpp.ulTo) = frm; | |
| 285 #ifdef DEBUG_CDROM | |
| 286 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", | |
| 287 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, | |
| 288 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); | |
| 289 #endif | |
| 290 /* Verifies if it is paused first... and if it is, unpause before stopping it. */ | |
| 291 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 292 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 293 msp.ulItem = MCI_STATUS_MODE; | |
| 294 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 295 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) | |
| 296 { | |
| 297 if (msp.ulReturn == MCI_MODE_PAUSE) | |
| 298 { | |
| 299 mgp.hwndCallback = (HWND)NULL; // None | |
| 300 mciSendCommand(cdrom->id,MCI_RESUME,NULL,&mgp, 0); | |
| 301 } | |
| 302 } | |
| 303 /* Now play it. */ | |
| 304 mpp.hwndCallback = (HWND)NULL; // We do not want the info. temp | |
| 305 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PLAY,MCI_FROM | MCI_TO,&mpp, 0)) == MCIERR_SUCCESS) return 0; | |
| 306 return (CD_ERROR); | |
| 307 } | |
| 308 | |
| 309 /* Pause play - Ready for MCI */ | |
| 310 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 311 { | |
| 312 MCI_GENERIC_PARMS mgp; | |
| 313 | |
| 314 mgp.hwndCallback = (HWND)NULL; // None | |
| 315 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PAUSE,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
| 316 return(CD_ERROR); | |
| 317 } | |
| 318 | |
| 319 /* Resume play - Ready for MCI */ | |
| 320 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 321 { | |
| 322 MCI_GENERIC_PARMS mgp; | |
| 323 | |
| 324 mgp.hwndCallback = (HWND)NULL; // None | |
| 325 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_RESUME,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
| 326 return(CD_ERROR); | |
| 327 } | |
| 328 | |
| 329 /* Stop play - Ready for MCI */ | |
| 330 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 331 { | |
| 332 MCI_GENERIC_PARMS mgp; | |
| 333 MCI_STATUS_PARMS msp; | |
| 334 | |
| 335 /* Verifies if it is paused first... and if it is, unpause before stopping it. */ | |
| 336 msp.hwndCallback = (HWND)NULL; /* None */ | |
| 337 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
| 338 msp.ulItem = MCI_STATUS_MODE; | |
| 339 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
| 340 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) | |
| 341 { | |
| 342 if (msp.ulReturn == MCI_MODE_PAUSE) | |
| 343 { | |
| 344 mgp.hwndCallback = (HWND)NULL; // None | |
| 345 mciSendCommand(cdrom->id,MCI_RESUME,NULL,&mgp, 0); | |
| 346 } | |
| 347 } | |
| 348 /* Now stops the media */ | |
| 349 mgp.hwndCallback = (HWND)NULL; // None | |
| 350 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STOP,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
| 351 return(CD_ERROR); | |
| 352 } | |
| 353 | |
| 354 /* Eject the CD-ROM - Ready for MCI */ | |
| 355 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 356 { | |
| 357 MCI_SET_PARMS msp; | |
| 358 | |
| 359 msp.hwndCallback = (HWND)NULL; // None | |
| 360 msp.ulTimeFormat = (ULONG)NULL; // No change | |
| 361 msp.ulSpeedFormat = (ULONG)NULL; // No change | |
| 362 msp.ulAudio = (ULONG)NULL; // No Channel | |
| 363 msp.ulLevel = (ULONG)NULL; // No Volume | |
| 364 msp.ulOver = (ULONG)NULL; // No Delay | |
| 365 msp.ulItem = (ULONG)NULL; // No item | |
| 366 msp.ulValue = (ULONG)NULL; // No value for item flag | |
| 367 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_SET,MCI_WAIT | MCI_SET_DOOR_OPEN,&msp, 0)) == MCIERR_SUCCESS) return 0; | |
| 368 return(CD_ERROR); | |
| 369 } | |
| 370 | |
| 371 /* Close the CD-ROM handle - Ready for MCI */ | |
| 372 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 373 { | |
| 374 MCI_GENERIC_PARMS mgp; | |
| 375 | |
| 376 mgp.hwndCallback = (HWND)NULL; // None | |
| 377 mciSendCommand(cdrom->id,MCI_CLOSE,MCI_WAIT,&mgp, 0); | |
| 378 } | |
| 379 | |
| 380 /* Finalize CDROM Subsystem - Ready for MCI */ | |
| 381 void SDL_SYS_CDQuit(void) | |
| 382 { | |
| 383 int i; | |
| 384 | |
| 385 if ( SDL_numcds > 0 ) | |
| 386 { | |
| 387 for ( i=0; i<SDL_numcds; ++i ) | |
| 388 { | |
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389 SDL_free(SDL_cdlist[i]); |
| 1190 | 390 } |
| 391 SDL_numcds = 0; | |
| 392 } | |
| 393 } | |
| 394 |