Mercurial > sdl-ios-xcode
annotate src/cdrom/os2/SDL_syscdrom.c @ 3895:aeb55f698ee3 SDL-1.2
Block fruity channel values in dspaudio, or the fragment size won't be a
power of 2.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Sun, 12 Nov 2006 21:23:57 +0000 |
parents | 92947e3a18db |
children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
rev | line source |
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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 |
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24 #ifdef SDL_CDROM_OS2 |
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25 |
1190 | 26 /* Functions for system-level CD-ROM audio control */ |
27 | |
28 #define INCL_MCIOS2 | |
29 #include <os2.h> | |
30 #include <os2me.h> | |
31 | |
32 #include "SDL_cdrom.h" | |
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33 #include "../SDL_syscdrom.h" |
1190 | 34 |
35 /* Size of MCI result buffer (in bytes) */ | |
36 #define MCI_CMDRETBUFSIZE 128 | |
37 | |
38 /* The maximum number of CD-ROM drives we'll detect */ | |
39 #define MAX_DRIVES 16 | |
40 | |
41 /* A list of available CD-ROM drives */ | |
42 static char *SDL_cdlist[MAX_DRIVES]; | |
43 //static dev_t SDL_cdmode[MAX_DRIVES]; | |
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 /* MCI Timing Functions */ | |
58 #define MCI_MMTIMEPERSECOND 3000 | |
59 #define FRAMESFROMMM(mmtime) (((mmtime)*CD_FPS)/MCI_MMTIMEPERSECOND) | |
60 | |
61 | |
62 /* Ready for MCI CDAudio Devices */ | |
63 int SDL_SYS_CDInit(void) | |
64 { | |
65 int i; /* generig counter */ | |
66 MCI_SYSINFO_PARMS msp; /* Structure to MCI SysInfo parameters */ | |
67 CHAR SysInfoRet[MCI_CMDRETBUFSIZE]; /* Buffer for MCI Command result */ | |
68 | |
69 /* Fill in our driver capabilities */ | |
70 SDL_CDcaps.Name = SDL_SYS_CDName; | |
71 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
72 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
73 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
74 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
75 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
76 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
77 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
78 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
79 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
80 | |
81 /* Get the number of CD ROMs in the System */ | |
82 /* Clean SysInfo structure */ | |
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83 SDL_memset(&msp, 0x00, sizeof(MCI_SYSINFO_PARMS)); |
1190 | 84 /* Prepare structure to Ask Numer of Audio CDs */ |
85 msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ | |
86 msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ | |
87 msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ | |
88 if (LOUSHORT(mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_QUANTITY | MCI_WAIT, (PVOID)&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
89 SDL_numcds = atoi(SysInfoRet); | |
90 if (SDL_numcds > MAX_DRIVES) SDL_numcds = MAX_DRIVES; /* Limit maximum CD number */ | |
91 | |
92 /* Get and Add their system name to the SDL_cdlist */ | |
93 msp.pszReturn = (PSZ)&SysInfoRet; /* Return Structure */ | |
94 msp.ulRetSize = MCI_CMDRETBUFSIZE; /* Size of ret struct */ | |
95 msp.usDeviceType = MCI_DEVTYPE_CD_AUDIO; /* CD Audio Type */ | |
96 for (i=0; i<SDL_numcds; i++) | |
97 { | |
98 msp.ulNumber = i+1; | |
99 mciSendCommand(0,MCI_SYSINFO, MCI_SYSINFO_NAME | MCI_WAIT,&msp, 0); | |
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100 SDL_cdlist[i] = SDL_strdup(SysInfoRet); |
1190 | 101 if ( SDL_cdlist[i] == NULL ) |
102 { | |
103 SDL_OutOfMemory(); | |
104 return(-1); | |
105 } | |
106 } | |
107 return(0); | |
108 } | |
109 | |
110 /* Return CDAudio System Dependent Device Name - Ready for MCI*/ | |
111 static const char *SDL_SYS_CDName(int drive) | |
112 { | |
113 return(SDL_cdlist[drive]); | |
114 } | |
115 | |
116 /* Open CDAudio Device - Ready for MCI */ | |
117 static int SDL_SYS_CDOpen(int drive) | |
118 { | |
119 MCI_OPEN_PARMS mop; | |
120 MCI_SET_PARMS msp; | |
121 MCI_GENERIC_PARMS mgp; | |
122 | |
123 /* Open the device */ | |
124 mop.hwndCallback = (HWND)NULL; // None | |
125 mop.usDeviceID = (USHORT)NULL; // Will be returned. | |
126 mop.pszDeviceType = (PSZ)SDL_cdlist[drive]; // CDAudio Device | |
127 if (LOUSHORT(mciSendCommand(0,MCI_OPEN,MCI_WAIT,&mop, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
128 /* Set time format */ | |
129 msp.hwndCallback = (HWND)NULL; // None | |
130 msp.ulTimeFormat = MCI_FORMAT_MSF; // Minute : Second : Frame structure | |
131 msp.ulSpeedFormat = (ULONG)NULL; // No change | |
132 msp.ulAudio = (ULONG)NULL; // No Channel | |
133 msp.ulLevel = (ULONG)NULL; // No Volume | |
134 msp.ulOver = (ULONG)NULL; // No Delay | |
135 msp.ulItem = (ULONG)NULL; // No item | |
136 msp.ulValue = (ULONG)NULL; // No value for item flag | |
137 if (LOUSHORT(mciSendCommand(mop.usDeviceID,MCI_SET,MCI_WAIT | MCI_SET_TIME_FORMAT,&msp, 0)) == MCIERR_SUCCESS) return (mop.usDeviceID); | |
138 /* Error setting time format? - Close opened device */ | |
139 mgp.hwndCallback = (HWND)NULL; // None | |
140 mciSendCommand(mop.usDeviceID,MCI_CLOSE,MCI_WAIT,&mgp, 0); | |
141 return(CD_ERROR); | |
142 } | |
143 | |
144 /* Get CD Table Of Contents - Ready for MCI */ | |
145 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
146 { | |
147 MCI_TOC_PARMS mtp; | |
148 MCI_STATUS_PARMS msp; | |
149 MCI_TOC_REC * mtr; | |
150 INT i; | |
151 | |
152 /* Correction because MCI cannot read TOC while CD is playing (it'll stop!) */ | |
153 if (cdrom->status == CD_PLAYING || cdrom->status == CD_PAUSED) return 0; | |
154 | |
155 /* Get Number of Tracks */ | |
156 msp.hwndCallback = (HWND)NULL; /* None */ | |
157 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
158 msp.ulItem = MCI_STATUS_NUMBER_OF_TRACKS; | |
159 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
160 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return(CD_ERROR); | |
161 cdrom->numtracks = msp.ulReturn; | |
162 if ( cdrom->numtracks > SDL_MAX_TRACKS ) | |
163 { | |
164 cdrom->numtracks = SDL_MAX_TRACKS; | |
165 } | |
166 /* Alocate space for TOC data */ | |
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167 mtr = (MCI_TOC_REC *)SDL_malloc(cdrom->numtracks*sizeof(MCI_TOC_REC)); |
1190 | 168 if ( mtr == NULL ) |
169 { | |
170 SDL_OutOfMemory(); | |
171 return(-1); | |
172 } | |
173 /* Get TOC from CD */ | |
174 mtp.pBuf = mtr; | |
175 mtp.ulBufSize = cdrom->numtracks*sizeof(MCI_TOC_REC); | |
176 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_GETTOC,MCI_WAIT,&mtp, 0)) != MCIERR_SUCCESS) | |
177 { | |
178 SDL_OutOfMemory(); | |
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179 SDL_free(mtr); |
1190 | 180 return(CD_ERROR); |
181 } | |
182 /* Fill SDL Tracks Structure */ | |
183 for (i=0; i<cdrom->numtracks; i++) | |
184 { | |
185 /* Set Track ID */ | |
186 cdrom->track[i].id = (mtr+i)->TrackNum; | |
187 /* Set Track Type */ | |
188 msp.hwndCallback = (HWND)NULL; /* None */ | |
189 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
190 msp.ulItem = MCI_CD_STATUS_TRACK_TYPE; | |
191 msp.ulValue = (ULONG)((mtr+i)->TrackNum); /* Track Number? */ | |
192 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_TRACK | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) | |
193 { | |
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194 SDL_free(mtr); |
1190 | 195 return (CD_ERROR); |
196 } | |
197 if (msp.ulReturn==MCI_CD_TRACK_AUDIO) cdrom->track[i].type = SDL_AUDIO_TRACK; | |
198 else cdrom->track[i].type = SDL_DATA_TRACK; | |
199 /* Set Track Length - values from MCI are in MMTIMEs - 3000 MMTIME = 1 second */ | |
200 cdrom->track[i].length = FRAMESFROMMM((mtr+i)->ulEndAddr - (mtr+i)->ulStartAddr); | |
201 /* Set Track Offset */ | |
202 cdrom->track[i].offset = FRAMESFROMMM((mtr+i)->ulStartAddr); | |
203 } | |
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204 SDL_free(mtr); |
1190 | 205 return(0); |
206 } | |
207 | |
208 | |
209 /* Get CD-ROM status - Ready for MCI */ | |
210 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
211 { | |
212 CDstatus status; | |
213 MCI_STATUS_PARMS msp; | |
214 | |
215 /* Get Status from MCI */ | |
216 msp.hwndCallback = (HWND)NULL; /* None */ | |
217 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
218 msp.ulItem = MCI_STATUS_MODE; | |
219 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
220 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) status = CD_ERROR; | |
221 else | |
222 { | |
223 switch(msp.ulReturn) | |
224 { | |
225 case MCI_MODE_NOT_READY: | |
226 status = CD_TRAYEMPTY; | |
227 break; | |
228 case MCI_MODE_PAUSE: | |
229 status = CD_PAUSED; | |
230 break; | |
231 case MCI_MODE_PLAY: | |
232 status = CD_PLAYING; | |
233 break; | |
234 case MCI_MODE_STOP: | |
235 status = CD_STOPPED; | |
236 break; | |
237 /* These cases should not occour */ | |
238 case MCI_MODE_RECORD: | |
239 case MCI_MODE_SEEK: | |
240 default: | |
241 status = CD_ERROR; | |
242 break; | |
243 } | |
244 } | |
245 | |
246 /* Determine position */ | |
247 if (position != NULL) /* The SDL $&$&%# CDROM call sends NULL pointer here! */ | |
248 { | |
249 if ((status == CD_PLAYING) || (status == CD_PAUSED)) | |
250 { | |
251 /* Get Position */ | |
252 msp.hwndCallback = (HWND)NULL; /* None */ | |
253 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
254 msp.ulItem = MCI_STATUS_POSITION; | |
255 msp.ulValue = (ULONG)NULL; /* No additiona info */ | |
256 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) != MCIERR_SUCCESS) return (CD_ERROR); | |
257 /* Convert from MSF (format selected in the Open process) to Frames (format that will be returned) */ | |
258 *position = MSF_TO_FRAMES(MSF_MINUTE(msp.ulReturn),MSF_SECOND(msp.ulReturn),MSF_FRAME(msp.ulReturn)); | |
259 } | |
260 else *position = 0; | |
261 } | |
262 return(status); | |
263 } | |
264 | |
265 /* Start play - Ready for MCI */ | |
266 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
267 { | |
268 MCI_GENERIC_PARMS mgp; | |
269 MCI_STATUS_PARMS msp; | |
270 MCI_PLAY_PARMS mpp; | |
271 ULONG min,sec,frm; | |
272 | |
273 /* Start MSF */ | |
274 FRAMES_TO_MSF(start, &min, &sec, &frm); | |
275 MSF_MINUTE(mpp.ulFrom) = min; | |
276 MSF_SECOND(mpp.ulFrom) = sec; | |
277 MSF_FRAME(mpp.ulFrom) = frm; | |
278 /* End MSF */ | |
279 FRAMES_TO_MSF(start+length, &min, &sec, &frm); | |
280 MSF_MINUTE(mpp.ulTo) = min; | |
281 MSF_SECOND(mpp.ulTo) = sec; | |
282 MSF_FRAME(mpp.ulTo) = frm; | |
283 #ifdef DEBUG_CDROM | |
284 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", | |
285 playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, | |
286 playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); | |
287 #endif | |
288 /* Verifies if it is paused first... and if it is, unpause before stopping it. */ | |
289 msp.hwndCallback = (HWND)NULL; /* None */ | |
290 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
291 msp.ulItem = MCI_STATUS_MODE; | |
292 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
293 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) | |
294 { | |
295 if (msp.ulReturn == MCI_MODE_PAUSE) | |
296 { | |
297 mgp.hwndCallback = (HWND)NULL; // None | |
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298 mciSendCommand(cdrom->id,MCI_RESUME,0,&mgp, 0); |
1190 | 299 } |
300 } | |
301 /* Now play it. */ | |
302 mpp.hwndCallback = (HWND)NULL; // We do not want the info. temp | |
303 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PLAY,MCI_FROM | MCI_TO,&mpp, 0)) == MCIERR_SUCCESS) return 0; | |
304 return (CD_ERROR); | |
305 } | |
306 | |
307 /* Pause play - Ready for MCI */ | |
308 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
309 { | |
310 MCI_GENERIC_PARMS mgp; | |
311 | |
312 mgp.hwndCallback = (HWND)NULL; // None | |
313 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_PAUSE,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
314 return(CD_ERROR); | |
315 } | |
316 | |
317 /* Resume play - Ready for MCI */ | |
318 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
319 { | |
320 MCI_GENERIC_PARMS mgp; | |
321 | |
322 mgp.hwndCallback = (HWND)NULL; // None | |
323 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_RESUME,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
324 return(CD_ERROR); | |
325 } | |
326 | |
327 /* Stop play - Ready for MCI */ | |
328 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
329 { | |
330 MCI_GENERIC_PARMS mgp; | |
331 MCI_STATUS_PARMS msp; | |
332 | |
333 /* Verifies if it is paused first... and if it is, unpause before stopping it. */ | |
334 msp.hwndCallback = (HWND)NULL; /* None */ | |
335 msp.ulReturn = (ULONG)NULL; /* We want this information */ | |
336 msp.ulItem = MCI_STATUS_MODE; | |
337 msp.ulValue = (ULONG)NULL; /* No additional information */ | |
338 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STATUS,MCI_WAIT | MCI_STATUS_ITEM,&msp, 0)) == MCIERR_SUCCESS) | |
339 { | |
340 if (msp.ulReturn == MCI_MODE_PAUSE) | |
341 { | |
342 mgp.hwndCallback = (HWND)NULL; // None | |
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343 mciSendCommand(cdrom->id,MCI_RESUME,0,&mgp, 0); |
1190 | 344 } |
345 } | |
346 /* Now stops the media */ | |
347 mgp.hwndCallback = (HWND)NULL; // None | |
348 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_STOP,MCI_WAIT,&mgp, 0)) == MCIERR_SUCCESS) return 0; | |
349 return(CD_ERROR); | |
350 } | |
351 | |
352 /* Eject the CD-ROM - Ready for MCI */ | |
353 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
354 { | |
355 MCI_SET_PARMS msp; | |
356 | |
357 msp.hwndCallback = (HWND)NULL; // None | |
358 msp.ulTimeFormat = (ULONG)NULL; // No change | |
359 msp.ulSpeedFormat = (ULONG)NULL; // No change | |
360 msp.ulAudio = (ULONG)NULL; // No Channel | |
361 msp.ulLevel = (ULONG)NULL; // No Volume | |
362 msp.ulOver = (ULONG)NULL; // No Delay | |
363 msp.ulItem = (ULONG)NULL; // No item | |
364 msp.ulValue = (ULONG)NULL; // No value for item flag | |
365 if (LOUSHORT(mciSendCommand(cdrom->id,MCI_SET,MCI_WAIT | MCI_SET_DOOR_OPEN,&msp, 0)) == MCIERR_SUCCESS) return 0; | |
366 return(CD_ERROR); | |
367 } | |
368 | |
369 /* Close the CD-ROM handle - Ready for MCI */ | |
370 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
371 { | |
372 MCI_GENERIC_PARMS mgp; | |
373 | |
374 mgp.hwndCallback = (HWND)NULL; // None | |
375 mciSendCommand(cdrom->id,MCI_CLOSE,MCI_WAIT,&mgp, 0); | |
376 } | |
377 | |
378 /* Finalize CDROM Subsystem - Ready for MCI */ | |
379 void SDL_SYS_CDQuit(void) | |
380 { | |
381 int i; | |
382 | |
383 if ( SDL_numcds > 0 ) | |
384 { | |
385 for ( i=0; i<SDL_numcds; ++i ) | |
386 { | |
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387 SDL_free(SDL_cdlist[i]); |
1190 | 388 } |
389 SDL_numcds = 0; | |
390 } | |
391 } | |
392 | |
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393 #endif /* SDL_CDROM_OS2 */ |