Mercurial > sdl-ios-xcode
annotate src/cdrom/os2/SDL_syscdrom.c @ 1312:c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
I batch edited these files, so please let me know if I've accidentally removed anybody's
credit here.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 01 Feb 2006 06:32:25 +0000 |
parents | 173c063d4f55 |
children | 3692456e7b0f |
rev | line source |
---|---|
1190 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
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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 | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
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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 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
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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 | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
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13 Lesser General Public License for more details. |
1190 | 14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
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15 You should have received a copy of the GNU Lesser General Public |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1190
diff
changeset
|
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 */ | |
84 memset(&msp, 0x00, sizeof(MCI_SYSINFO_PARMS)); | |
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); | |
101 SDL_cdlist[i] = (char *)malloc(strlen(SysInfoRet)+1); | |
102 if ( SDL_cdlist[i] == NULL ) | |
103 { | |
104 SDL_OutOfMemory(); | |
105 return(-1); | |
106 } | |
107 strcpy(SDL_cdlist[i], SysInfoRet); | |
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 */ | |
169 mtr = (MCI_TOC_REC *)malloc(cdrom->numtracks*sizeof(MCI_TOC_REC)); | |
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(); | |
181 free(mtr); | |
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 { | |
196 free(mtr); | |
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 } | |
206 free(mtr); | |
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 { | |
389 free(SDL_cdlist[i]); | |
390 } | |
391 SDL_numcds = 0; | |
392 } | |
393 } | |
394 |