Mercurial > sdl-ios-xcode
annotate src/cdrom/aix/SDL_syscdrom.c @ 4241:d3a210342761 SDL-1.2
Fixed crash with right side up BMP files
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 26 Sep 2009 06:01:27 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
| 4159 | 3 Copyright (C) 1997-2009 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 Carsten Griwodz | |
| 20 griff@kom.tu-darmstadt.de | |
| 21 | |
| 22 based on linux/SDL_syscdrom.c by Sam Lantinga | |
| 23 */ | |
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24 #include "SDL_config.h" |
| 0 | 25 |
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26 #ifdef SDL_CDROM_AIX |
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27 |
| 0 | 28 /* Functions for system-level CD-ROM audio control */ |
| 29 | |
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30 /*#define DEBUG_CDROM 1*/ |
| 0 | 31 |
| 32 #include <sys/types.h> | |
| 33 #include <sys/stat.h> | |
| 34 #include <fcntl.h> | |
| 35 #include <errno.h> | |
| 36 #include <unistd.h> | |
| 37 | |
| 38 #include <sys/ioctl.h> | |
| 39 #include <sys/devinfo.h> | |
| 40 #include <sys/mntctl.h> | |
| 41 #include <sys/statfs.h> | |
| 42 #include <sys/vmount.h> | |
| 43 #include <fstab.h> | |
| 44 #include <sys/scdisk.h> | |
| 45 | |
| 46 #include "SDL_cdrom.h" | |
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47 #include "../SDL_syscdrom.h" |
| 0 | 48 |
| 49 /* The maximum number of CD-ROM drives we'll detect */ | |
| 50 #define MAX_DRIVES 16 | |
| 51 | |
| 52 /* A list of available CD-ROM drives */ | |
| 53 static char *SDL_cdlist[MAX_DRIVES]; | |
| 54 static dev_t SDL_cdmode[MAX_DRIVES]; | |
| 55 | |
| 56 /* The system-dependent CD control functions */ | |
| 57 static const char *SDL_SYS_CDName(int drive); | |
| 58 static int SDL_SYS_CDOpen(int drive); | |
| 59 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); | |
| 60 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); | |
| 61 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); | |
| 62 static int SDL_SYS_CDPause(SDL_CD *cdrom); | |
| 63 static int SDL_SYS_CDResume(SDL_CD *cdrom); | |
| 64 static int SDL_SYS_CDStop(SDL_CD *cdrom); | |
| 65 static int SDL_SYS_CDEject(SDL_CD *cdrom); | |
| 66 static void SDL_SYS_CDClose(SDL_CD *cdrom); | |
| 67 static int SDL_SYS_CDioctl(int id, int command, void *arg); | |
| 68 | |
| 69 /* Check a drive to see if it is a CD-ROM */ | |
| 70 static int CheckDrive(char *drive, struct stat *stbuf) | |
| 71 { | |
| 72 int is_cd; | |
| 73 int cdfd; | |
| 74 int ret; | |
| 75 struct devinfo info; | |
| 76 | |
| 77 /* If it doesn't exist, return -1 */ | |
| 78 if ( stat(drive, stbuf) < 0 ) { | |
| 79 return -1; | |
| 80 } | |
| 81 | |
| 82 /* If it does exist, verify that it's an available CD-ROM */ | |
| 83 is_cd = 0; | |
| 84 if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { | |
| 85 cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0); | |
| 86 if ( cdfd >= 0 ) { | |
| 87 ret = SDL_SYS_CDioctl( cdfd, IOCINFO, &info ); | |
| 88 if ( ret < 0 ) { | |
| 89 /* Some kind of error */ | |
| 90 is_cd = 0; | |
| 91 } else { | |
| 92 if ( info.devtype == DD_CDROM ) { | |
| 93 is_cd = 1; | |
| 94 } else { | |
| 95 is_cd = 0; | |
| 96 } | |
| 97 } | |
| 98 close(cdfd); | |
| 99 } | |
| 100 #ifdef DEBUG_CDROM | |
| 101 else | |
| 102 { | |
| 103 fprintf(stderr, "Could not open drive %s (%s)\n", drive, strerror(errno)); | |
| 104 } | |
| 105 #endif | |
| 106 } | |
| 107 return is_cd; | |
| 108 } | |
| 109 | |
| 110 /* Add a CD-ROM drive to our list of valid drives */ | |
| 111 static void AddDrive(char *drive, struct stat *stbuf) | |
| 112 { | |
| 113 int i; | |
| 114 | |
| 115 if ( SDL_numcds < MAX_DRIVES ) { | |
| 116 /* Check to make sure it's not already in our list. | |
| 117 This can happen when we see a drive via symbolic link. | |
| 118 */ | |
| 119 for ( i=0; i<SDL_numcds; ++i ) { | |
| 120 if ( stbuf->st_rdev == SDL_cdmode[i] ) { | |
| 121 #ifdef DEBUG_CDROM | |
| 122 fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); | |
| 123 #endif | |
| 124 return; | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 /* Add this drive to our list */ | |
| 129 i = SDL_numcds; | |
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130 SDL_cdlist[i] = SDL_strdup(drive); |
| 0 | 131 if ( SDL_cdlist[i] == NULL ) { |
| 132 SDL_OutOfMemory(); | |
| 133 return; | |
| 134 } | |
| 135 SDL_cdmode[i] = stbuf->st_rdev; | |
| 136 ++SDL_numcds; | |
| 137 #ifdef DEBUG_CDROM | |
| 138 fprintf(stderr, "Added CD-ROM drive: %s\n", drive); | |
| 139 #endif | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 static void CheckMounts() | |
| 144 { | |
| 145 char* buffer; | |
| 146 int bufsz; | |
| 147 struct vmount* ptr; | |
| 148 int ret; | |
| 149 | |
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150 buffer = (char*)SDL_malloc(10); |
| 0 | 151 bufsz = 10; |
| 152 if ( buffer==NULL ) | |
| 153 { | |
| 154 fprintf(stderr, "Could not allocate 10 bytes in aix/SDL_syscdrom.c:CheckMounts\n" ); | |
| 155 exit ( -10 ); | |
| 156 } | |
| 157 | |
| 158 do | |
| 159 { | |
| 160 /* mntctrl() returns an array of all mounted filesystems */ | |
| 161 ret = mntctl ( MCTL_QUERY, bufsz, buffer ); | |
| 162 if ( ret == 0 ) | |
| 163 { | |
| 164 /* Buffer was too small, realloc. */ | |
| 165 bufsz = *(int*)buffer; /* Required size is in first word. */ | |
| 166 /* (whatever a word is in AIX 4.3.3) */ | |
| 167 /* int seems to be OK in 32bit mode. */ | |
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168 SDL_free(buffer); |
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169 buffer = (char*)SDL_malloc(bufsz); |
| 0 | 170 if ( buffer==NULL ) |
| 171 { | |
| 172 fprintf(stderr, | |
| 173 "Could not allocate %d bytes in aix/SDL_syscdrom.c:CheckMounts\n", | |
| 174 bufsz ); | |
| 175 exit ( -10 ); | |
| 176 } | |
| 177 } | |
| 178 else if ( ret < 0 ) | |
| 179 { | |
| 180 #ifdef DEBUG_CDROM | |
| 181 fprintf(stderr, "Error reading vmount structures\n"); | |
| 182 #endif | |
| 183 return; | |
| 184 } | |
| 185 } | |
| 186 while ( ret == 0 ); | |
| 187 | |
| 188 #ifdef DEBUG_CDROM | |
| 189 fprintf ( stderr, "Read %d vmount structures\n",ret ); | |
| 190 #endif | |
| 191 ptr = (struct vmount*)buffer; | |
| 192 do | |
| 193 { | |
| 194 switch(ptr->vmt_gfstype) | |
| 195 { | |
| 196 case MNT_CDROM : | |
| 197 { | |
| 198 struct stat stbuf; | |
| 199 char* text; | |
| 200 | |
| 201 text = (char*)ptr + ptr->vmt_data[VMT_OBJECT].vmt_off; | |
| 202 #ifdef DEBUG_CDROM | |
| 203 fprintf(stderr, "Checking mount path: %s mounted on %s\n", | |
| 204 text, (char*)ptr + ptr->vmt_data[VMT_STUB].vmt_off ); | |
| 205 #endif | |
| 206 if ( CheckDrive( text, &stbuf) > 0) | |
| 207 { | |
| 208 AddDrive( text, &stbuf); | |
| 209 } | |
| 210 } | |
| 211 break; | |
| 212 default : | |
| 213 break; | |
| 214 } | |
| 215 ptr = (struct vmount*)((char*)ptr + ptr->vmt_length); | |
| 216 ret--; | |
| 217 } | |
| 218 while ( ret > 0 ); | |
| 219 | |
| 220 free ( buffer ); | |
| 221 } | |
| 222 | |
| 223 static int CheckNonmounts() | |
| 224 { | |
| 225 #ifdef _THREAD_SAFE | |
| 226 AFILE_t fsFile = NULL; | |
| 227 int passNo = 0; | |
| 228 int ret; | |
| 229 struct fstab entry; | |
| 230 struct stat stbuf; | |
| 231 | |
| 232 ret = setfsent_r( &fsFile, &passNo ); | |
| 233 if ( ret != 0 ) return -1; | |
| 234 do | |
| 235 { | |
| 236 ret = getfsent_r ( &entry, &fsFile, &passNo ); | |
| 237 if ( ret == 0 ) { | |
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238 char* l = SDL_strrchr(entry.fs_spec,'/'); |
| 0 | 239 if ( l != NULL ) { |
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240 if ( !SDL_strncmp("cd",++l,2) ) { |
| 0 | 241 #ifdef DEBUG_CDROM |
| 242 fprintf(stderr, | |
| 243 "Found unmounted CD ROM drive with device name %s\n", | |
| 244 entry.fs_spec); | |
| 245 #endif | |
| 246 if ( CheckDrive( entry.fs_spec, &stbuf) > 0) | |
| 247 { | |
| 248 AddDrive( entry.fs_spec, &stbuf); | |
| 249 } | |
| 250 } | |
| 251 } | |
| 252 } | |
| 253 } | |
| 254 while ( ret == 0 ); | |
| 255 ret = endfsent_r ( &fsFile ); | |
| 256 if ( ret != 0 ) return -1; | |
| 257 return 0; | |
| 258 #else | |
| 259 struct fstab* entry; | |
| 260 struct stat stbuf; | |
| 261 | |
| 262 setfsent(); | |
| 263 do | |
| 264 { | |
| 265 entry = getfsent(); | |
| 266 if ( entry != NULL ) { | |
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267 char* l = SDL_strrchr(entry->fs_spec,'/'); |
| 0 | 268 if ( l != NULL ) { |
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269 if ( !SDL_strncmp("cd",++l,2) ) { |
| 0 | 270 #ifdef DEBUG_CDROM |
| 271 fprintf(stderr,"Found unmounted CD ROM drive with device name %s", entry->fs_spec); | |
| 272 #endif | |
| 273 if ( CheckDrive( entry->fs_spec, &stbuf) > 0) | |
| 274 { | |
| 275 AddDrive( entry->fs_spec, &stbuf); | |
| 276 } | |
| 277 } | |
| 278 } | |
| 279 } | |
| 280 } | |
| 281 while ( entry != NULL ); | |
| 282 endfsent(); | |
| 283 #endif | |
| 284 } | |
| 285 | |
| 286 int SDL_SYS_CDInit(void) | |
| 287 { | |
| 288 char *SDLcdrom; | |
| 289 struct stat stbuf; | |
| 290 | |
| 291 /* Fill in our driver capabilities */ | |
| 292 SDL_CDcaps.Name = SDL_SYS_CDName; | |
| 293 SDL_CDcaps.Open = SDL_SYS_CDOpen; | |
| 294 SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | |
| 295 SDL_CDcaps.Status = SDL_SYS_CDStatus; | |
| 296 SDL_CDcaps.Play = SDL_SYS_CDPlay; | |
| 297 SDL_CDcaps.Pause = SDL_SYS_CDPause; | |
| 298 SDL_CDcaps.Resume = SDL_SYS_CDResume; | |
| 299 SDL_CDcaps.Stop = SDL_SYS_CDStop; | |
| 300 SDL_CDcaps.Eject = SDL_SYS_CDEject; | |
| 301 SDL_CDcaps.Close = SDL_SYS_CDClose; | |
| 302 | |
| 303 /* Look in the environment for our CD-ROM drive list */ | |
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304 SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */ |
| 0 | 305 if ( SDLcdrom != NULL ) { |
| 306 char *cdpath, *delim; | |
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307 size_t len = SDL_strlen(SDLcdrom)+1; |
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308 cdpath = SDL_stack_alloc(char, len); |
| 0 | 309 if ( cdpath != NULL ) { |
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310 SDL_strlcpy(cdpath, SDLcdrom, len); |
| 0 | 311 SDLcdrom = cdpath; |
| 312 do { | |
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313 delim = SDL_strchr(SDLcdrom, ':'); |
| 0 | 314 if ( delim ) { |
| 315 *delim++ = '\0'; | |
| 316 } | |
| 317 #ifdef DEBUG_CDROM | |
| 318 fprintf(stderr, "Checking CD-ROM drive from SDL_CDROM: %s\n", SDLcdrom); | |
| 319 #endif | |
| 320 if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) { | |
| 321 AddDrive(SDLcdrom, &stbuf); | |
| 322 } | |
| 323 if ( delim ) { | |
| 324 SDLcdrom = delim; | |
| 325 } else { | |
| 326 SDLcdrom = NULL; | |
| 327 } | |
| 328 } while ( SDLcdrom ); | |
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329 SDL_stack_free(cdpath); |
| 0 | 330 } |
| 331 | |
| 332 /* If we found our drives, there's nothing left to do */ | |
| 333 if ( SDL_numcds > 0 ) { | |
| 334 return(0); | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 CheckMounts(); | |
| 339 CheckNonmounts(); | |
| 340 | |
| 341 return 0; | |
| 342 } | |
| 343 | |
| 344 /* General ioctl() CD-ROM command function */ | |
| 345 static int SDL_SYS_CDioctl(int id, int command, void *arg) | |
| 346 { | |
| 347 int retval; | |
| 348 | |
| 349 retval = ioctl(id, command, arg); | |
| 350 if ( retval < 0 ) { | |
| 351 SDL_SetError("ioctl() error: %s", strerror(errno)); | |
| 352 } | |
| 353 return retval; | |
| 354 } | |
| 355 | |
| 356 static const char *SDL_SYS_CDName(int drive) | |
| 357 { | |
| 358 return(SDL_cdlist[drive]); | |
| 359 } | |
| 360 | |
| 361 static int SDL_SYS_CDOpen(int drive) | |
| 362 { | |
| 363 int fd; | |
| 364 char* lastsl; | |
| 365 char* cdromname; | |
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366 size_t len; |
| 0 | 367 |
| 368 /* | |
| 369 * We found /dev/cd? drives and that is in our list. But we can | |
| 370 * open only the /dev/rcd? versions of those devices for Audio CD. | |
| 371 */ | |
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372 len = SDL_strlen(SDL_cdlist[drive])+2; |
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373 cdromname = (char*)SDL_malloc(len); |
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374 SDL_strlcpy(cdromname,SDL_cdlist[drive],len); |
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375 lastsl = SDL_strrchr(cdromname,'/'); |
| 0 | 376 if (lastsl) { |
| 377 *lastsl = 0; | |
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378 SDL_strlcat(cdromname,"/r",len); |
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379 lastsl = SDL_strrchr(SDL_cdlist[drive],'/'); |
| 0 | 380 if (lastsl) { |
| 381 lastsl++; | |
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382 SDL_strlcat(cdromname,lastsl,len); |
| 0 | 383 } |
| 384 } | |
| 385 | |
| 386 #ifdef DEBUG_CDROM | |
| 387 fprintf(stderr, "Should open drive %s, opening %s\n", SDL_cdlist[drive], cdromname); | |
| 388 #endif | |
| 389 | |
| 390 /* | |
| 391 * Use exclusive access. Don't use SC_DIAGNOSTICS as xmcd does because they | |
| 392 * require root priviledges, and we don't want that. SC_SINGLE provides | |
| 393 * exclusive access with less trouble. | |
| 394 */ | |
| 395 fd = openx(cdromname, O_RDONLY, NULL, SC_SINGLE); | |
| 396 if ( fd < 0 ) | |
| 397 { | |
| 398 #ifdef DEBUG_CDROM | |
| 399 fprintf(stderr, "Could not open drive %s (%s)\n", cdromname, strerror(errno)); | |
| 400 #endif | |
| 401 } | |
| 402 else | |
| 403 { | |
| 404 struct mode_form_op cdMode; | |
| 405 int ret; | |
| 406 #ifdef DEBUG_CDROM | |
| 407 cdMode.action = CD_GET_MODE; | |
| 408 ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode); | |
| 409 if ( ret < 0 ) { | |
| 410 fprintf(stderr, | |
| 411 "Could not get drive mode for %s (%s)\n", | |
| 412 cdromname, strerror(errno)); | |
| 413 } else { | |
| 414 switch(cdMode.cd_mode_form) { | |
| 415 case CD_MODE1 : | |
| 416 fprintf(stderr, | |
| 417 "Drive mode for %s is %s\n", | |
| 418 cdromname, "CD-ROM Data Mode 1"); | |
| 419 break; | |
| 420 case CD_MODE2_FORM1 : | |
| 421 fprintf(stderr, | |
| 422 "Drive mode for %s is %s\n", | |
| 423 cdromname, "CD-ROM XA Data Mode 2 Form 1"); | |
| 424 break; | |
| 425 case CD_MODE2_FORM2 : | |
| 426 fprintf(stderr, | |
| 427 "Drive mode for %s is %s\n", | |
| 428 cdromname, "CD-ROM XA Data Mode 2 Form 2"); | |
| 429 break; | |
| 430 case CD_DA : | |
| 431 fprintf(stderr, | |
| 432 "Drive mode for %s is %s\n", | |
| 433 cdromname, "CD-DA"); | |
| 434 break; | |
| 435 default : | |
| 436 fprintf(stderr, | |
| 437 "Drive mode for %s is %s\n", | |
| 438 cdromname, "unknown"); | |
| 439 break; | |
| 440 } | |
| 441 } | |
| 442 #endif | |
| 443 | |
| 444 cdMode.action = CD_CHG_MODE; | |
| 445 cdMode.cd_mode_form = CD_DA; | |
| 446 ret = SDL_SYS_CDioctl(fd, DK_CD_MODE, &cdMode); | |
| 447 if ( ret < 0 ) { | |
| 448 #ifdef DEBUG_CDROM | |
| 449 fprintf(stderr, | |
| 450 "Could not set drive mode for %s (%s)\n", | |
| 451 cdromname, strerror(errno)); | |
| 452 #endif | |
| 453 SDL_SetError("ioctl() error: Could not set CD drive mode, %s", | |
| 454 strerror(errno)); | |
| 455 } else { | |
| 456 #ifdef DEBUG_CDROM | |
| 457 fprintf(stderr, | |
| 458 "Drive mode for %s set to CD_DA\n", | |
| 459 cdromname); | |
| 460 #endif | |
| 461 } | |
| 462 } | |
|
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parents:
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diff
changeset
|
463 SDL_free(cdromname); |
| 0 | 464 return fd; |
| 465 } | |
| 466 | |
| 467 static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) | |
| 468 { | |
| 469 struct cd_audio_cmd cmd; | |
| 470 struct cd_audio_cmd entry; | |
| 471 int i; | |
| 472 int okay; | |
| 473 | |
| 474 cmd.audio_cmds = CD_TRK_INFO_AUDIO; | |
| 475 cmd.msf_flag = FALSE; | |
| 476 if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) { | |
| 477 return -1; | |
| 478 } | |
| 479 | |
| 480 okay = 0; | |
| 481 cdrom->numtracks = cmd.indexing.track_index.last_track | |
| 482 - cmd.indexing.track_index.first_track+1; | |
| 483 if ( cdrom->numtracks > SDL_MAX_TRACKS ) { | |
| 484 cdrom->numtracks = SDL_MAX_TRACKS; | |
| 485 } | |
| 486 | |
| 487 /* Read all the track TOC entries */ | |
| 488 for ( i=0; i<=cdrom->numtracks; ++i ) { | |
| 489 if ( i == cdrom->numtracks ) { | |
| 490 cdrom->track[i].id = 0xAA;; | |
| 491 } else { | |
| 492 cdrom->track[i].id = cmd.indexing.track_index.first_track+i; | |
| 493 } | |
| 494 entry.audio_cmds = CD_GET_TRK_MSF; | |
| 495 entry.indexing.track_msf.track = cdrom->track[i].id; | |
| 496 if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &entry) < 0 ) { | |
| 497 break; | |
| 498 } else { | |
| 499 cdrom->track[i].type = 0; /* don't know how to detect 0x04 data track */ | |
| 500 cdrom->track[i].offset = MSF_TO_FRAMES( | |
| 501 entry.indexing.track_msf.mins, | |
| 502 entry.indexing.track_msf.secs, | |
| 503 entry.indexing.track_msf.frames); | |
| 504 cdrom->track[i].length = 0; | |
| 505 if ( i > 0 ) { | |
| 506 cdrom->track[i-1].length = cdrom->track[i].offset | |
| 507 - cdrom->track[i-1].offset; | |
| 508 } | |
| 509 } | |
| 510 } | |
| 511 if ( i == (cdrom->numtracks+1) ) { | |
| 512 okay = 1; | |
| 513 } | |
| 514 return(okay ? 0 : -1); | |
| 515 } | |
| 516 | |
| 517 /* Get CD-ROM status */ | |
| 518 static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) | |
| 519 { | |
| 520 CDstatus status; | |
| 521 struct cd_audio_cmd cmd; | |
| 522 cmd.audio_cmds = CD_INFO_AUDIO; | |
| 523 | |
| 524 if ( SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd) < 0 ) { | |
| 525 #ifdef DEBUG_CDROM | |
| 526 fprintf(stderr, "ioctl failed in SDL_SYS_CDStatus (%s)\n", SDL_GetError()); | |
| 527 #endif | |
| 528 status = CD_ERROR; | |
| 529 } else { | |
| 530 switch (cmd.status) { | |
| 531 case CD_NO_AUDIO: | |
| 532 case CD_COMPLETED: | |
| 533 status = CD_STOPPED; | |
| 534 break; | |
| 535 case CD_PLAY_AUDIO: | |
| 536 status = CD_PLAYING; | |
| 537 break; | |
| 538 case CD_PAUSE_AUDIO: | |
| 539 status = CD_PAUSED; | |
| 540 break; | |
| 541 case CD_NOT_VALID: | |
| 542 #ifdef DEBUG_CDROM | |
| 543 fprintf(stderr, "cdStatus failed with CD_NOT_VALID\n"); | |
| 544 #endif | |
| 545 status = CD_ERROR; | |
| 546 break; | |
| 547 case CD_STATUS_ERROR: | |
| 548 #ifdef DEBUG_CDROM | |
| 549 fprintf(stderr, "cdStatus failed with CD_STATUS_ERROR\n"); | |
| 550 #endif | |
| 551 status = CD_ERROR; | |
| 552 break; | |
| 553 default: | |
| 554 #ifdef DEBUG_CDROM | |
| 555 fprintf(stderr, "cdStatus failed with unknown error\n"); | |
| 556 #endif | |
| 557 status = CD_ERROR; | |
| 558 break; | |
| 559 } | |
| 560 } | |
| 561 if ( position ) { | |
| 562 if ( status == CD_PLAYING || (status == CD_PAUSED) ) { | |
| 563 *position = MSF_TO_FRAMES( cmd.indexing.info_audio.current_mins, | |
| 564 cmd.indexing.info_audio.current_secs, | |
| 565 cmd.indexing.info_audio.current_frames); | |
| 566 } else { | |
| 567 *position = 0; | |
| 568 } | |
| 569 } | |
| 570 return status; | |
| 571 } | |
| 572 | |
| 573 /* Start play */ | |
| 574 static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | |
| 575 { | |
| 576 struct cd_audio_cmd cmd; | |
| 577 | |
| 578 /* | |
| 579 * My CD Rom is muted by default. I think I read that this is new with | |
| 580 * AIX 4.3. SDL does not change the volume, so I need a kludge. Maybe | |
| 581 * its better to do this elsewhere? | |
| 582 */ | |
| 583 cmd.audio_cmds = CD_PLAY_AUDIO | CD_SET_VOLUME; | |
| 584 cmd.msf_flag = TRUE; | |
| 585 FRAMES_TO_MSF(start, | |
| 586 &cmd.indexing.msf.first_mins, | |
| 587 &cmd.indexing.msf.first_secs, | |
| 588 &cmd.indexing.msf.first_frames); | |
| 589 FRAMES_TO_MSF(start+length, | |
| 590 &cmd.indexing.msf.last_mins, | |
| 591 &cmd.indexing.msf.last_secs, | |
| 592 &cmd.indexing.msf.last_frames); | |
| 593 cmd.volume_type = CD_VOLUME_ALL; | |
| 594 cmd.all_channel_vol = 255; /* This is a uchar. What is a good value? No docu! */ | |
| 595 cmd.out_port_0_sel = CD_AUDIO_CHNL_0; | |
| 596 cmd.out_port_1_sel = CD_AUDIO_CHNL_1; | |
| 597 cmd.out_port_2_sel = CD_AUDIO_CHNL_2; | |
| 598 cmd.out_port_3_sel = CD_AUDIO_CHNL_3; | |
| 599 | |
| 600 #ifdef DEBUG_CDROM | |
| 601 fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", | |
| 602 cmd.indexing.msf.first_mins, | |
| 603 cmd.indexing.msf.first_secs, | |
| 604 cmd.indexing.msf.first_frames, | |
| 605 cmd.indexing.msf.last_mins, | |
| 606 cmd.indexing.msf.last_secs, | |
| 607 cmd.indexing.msf.last_frames); | |
| 608 #endif | |
| 609 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); | |
| 610 } | |
| 611 | |
| 612 /* Pause play */ | |
| 613 static int SDL_SYS_CDPause(SDL_CD *cdrom) | |
| 614 { | |
| 615 struct cd_audio_cmd cmd; | |
| 616 cmd.audio_cmds = CD_PAUSE_AUDIO; | |
| 617 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); | |
| 618 } | |
| 619 | |
| 620 /* Resume play */ | |
| 621 static int SDL_SYS_CDResume(SDL_CD *cdrom) | |
| 622 { | |
| 623 struct cd_audio_cmd cmd; | |
| 624 cmd.audio_cmds = CD_RESUME_AUDIO; | |
| 625 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); | |
| 626 } | |
| 627 | |
| 628 /* Stop play */ | |
| 629 static int SDL_SYS_CDStop(SDL_CD *cdrom) | |
| 630 { | |
| 631 struct cd_audio_cmd cmd; | |
| 632 cmd.audio_cmds = CD_STOP_AUDIO; | |
| 633 return(SDL_SYS_CDioctl(cdrom->id, DKAUDIO, &cmd)); | |
| 634 } | |
| 635 | |
| 636 /* Eject the CD-ROM */ | |
| 637 static int SDL_SYS_CDEject(SDL_CD *cdrom) | |
| 638 { | |
| 639 return(SDL_SYS_CDioctl(cdrom->id, DKEJECT, 0)); | |
| 640 } | |
| 641 | |
| 642 /* Close the CD-ROM handle */ | |
| 643 static void SDL_SYS_CDClose(SDL_CD *cdrom) | |
| 644 { | |
| 645 close(cdrom->id); | |
| 646 } | |
| 647 | |
| 648 void SDL_SYS_CDQuit(void) | |
| 649 { | |
| 650 int i; | |
| 651 | |
| 652 if ( SDL_numcds > 0 ) { | |
| 653 for ( i=0; i<SDL_numcds; ++i ) { | |
|
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parents:
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diff
changeset
|
654 SDL_free(SDL_cdlist[i]); |
| 0 | 655 } |
| 656 SDL_numcds = 0; | |
| 657 } | |
| 658 } | |
| 659 | |
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parents:
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diff
changeset
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660 #endif /* SDL_CDROM_AIX */ |