Mercurial > sdl-ios-xcode
diff src/cdrom/openbsd/SDL_syscdrom.c @ 1662:782fd950bd46 SDL-1.3
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid.
The code is now run through a consistent indent format:
indent -i4 -nut -nsc -br -ce
The headers are being converted to automatically generate doxygen documentation.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 28 May 2006 13:04:16 +0000 |
parents | 92947e3a18db |
children | 4da1ee79c9af |
line wrap: on
line diff
--- a/src/cdrom/openbsd/SDL_syscdrom.c Sun May 21 17:27:13 2006 +0000 +++ b/src/cdrom/openbsd/SDL_syscdrom.c Sun May 28 13:04:16 2006 +0000 @@ -39,23 +39,23 @@ /* The maximum number of CD-ROM drives we'll detect */ -#define MAX_DRIVES 16 +#define MAX_DRIVES 16 /* A list of available CD-ROM drives */ static char *SDL_cdlist[MAX_DRIVES]; static dev_t SDL_cdmode[MAX_DRIVES]; /* The system-dependent CD control functions */ -static const char *SDL_SYS_CDName(int drive); -static int SDL_SYS_CDOpen(int drive); -static int SDL_SYS_CDGetTOC(SDL_CD *cdrom); -static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position); -static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length); -static int SDL_SYS_CDPause(SDL_CD *cdrom); -static int SDL_SYS_CDResume(SDL_CD *cdrom); -static int SDL_SYS_CDStop(SDL_CD *cdrom); -static int SDL_SYS_CDEject(SDL_CD *cdrom); -static void SDL_SYS_CDClose(SDL_CD *cdrom); +static const char *SDL_SYS_CDName (int drive); +static int SDL_SYS_CDOpen (int drive); +static int SDL_SYS_CDGetTOC (SDL_CD * cdrom); +static CDstatus SDL_SYS_CDStatus (SDL_CD * cdrom, int *position); +static int SDL_SYS_CDPlay (SDL_CD * cdrom, int start, int length); +static int SDL_SYS_CDPause (SDL_CD * cdrom); +static int SDL_SYS_CDResume (SDL_CD * cdrom); +static int SDL_SYS_CDStop (SDL_CD * cdrom); +static int SDL_SYS_CDEject (SDL_CD * cdrom); +static void SDL_SYS_CDClose (SDL_CD * cdrom); /* Some ioctl() errno values which occur when the tray is empty */ #define ERRNO_TRAYEMPTY(errno) \ @@ -63,353 +63,369 @@ (errno == ENODEV)) /* Check a drive to see if it is a CD-ROM */ -static int CheckDrive(char *drive, struct stat *stbuf) +static int +CheckDrive (char *drive, struct stat *stbuf) { - int is_cd, cdfd; - struct ioc_read_subchannel info; + int is_cd, cdfd; + struct ioc_read_subchannel info; - /* If it doesn't exist, return -1 */ - if ( stat(drive, stbuf) < 0 ) { - return(-1); - } + /* If it doesn't exist, return -1 */ + if (stat (drive, stbuf) < 0) { + return (-1); + } - /* If it does exist, verify that it's an available CD-ROM */ - is_cd = 0; - if ( S_ISCHR(stbuf->st_mode) || S_ISBLK(stbuf->st_mode) ) { - cdfd = open(drive, (O_RDONLY|O_EXCL|O_NONBLOCK), 0); - if ( cdfd >= 0 ) { - info.address_format = CD_MSF_FORMAT; - info.data_format = CD_CURRENT_POSITION; - info.data_len = 0; - info.data = NULL; - /* Under Linux, EIO occurs when a disk is not present. - This isn't 100% reliable, so we use the USE_MNTENT - code above instead. - */ - if ( (ioctl(cdfd, CDIOCREADSUBCHANNEL, &info) == 0) || - ERRNO_TRAYEMPTY(errno) ) { - is_cd = 1; - } - close(cdfd); - } - else if (ERRNO_TRAYEMPTY(errno)) - is_cd = 1; - } - return(is_cd); + /* If it does exist, verify that it's an available CD-ROM */ + is_cd = 0; + if (S_ISCHR (stbuf->st_mode) || S_ISBLK (stbuf->st_mode)) { + cdfd = open (drive, (O_RDONLY | O_EXCL | O_NONBLOCK), 0); + if (cdfd >= 0) { + info.address_format = CD_MSF_FORMAT; + info.data_format = CD_CURRENT_POSITION; + info.data_len = 0; + info.data = NULL; + /* Under Linux, EIO occurs when a disk is not present. + This isn't 100% reliable, so we use the USE_MNTENT + code above instead. + */ + if ((ioctl (cdfd, CDIOCREADSUBCHANNEL, &info) == 0) || + ERRNO_TRAYEMPTY (errno)) { + is_cd = 1; + } + close (cdfd); + } else if (ERRNO_TRAYEMPTY (errno)) + is_cd = 1; + } + return (is_cd); } /* Add a CD-ROM drive to our list of valid drives */ -static void AddDrive(char *drive, struct stat *stbuf) +static void +AddDrive (char *drive, struct stat *stbuf) { - int i; + int i; - if ( SDL_numcds < MAX_DRIVES ) { - /* Check to make sure it's not already in our list. - This can happen when we see a drive via symbolic link. - */ - for ( i=0; i<SDL_numcds; ++i ) { - if ( stbuf->st_rdev == SDL_cdmode[i] ) { + if (SDL_numcds < MAX_DRIVES) { + /* Check to make sure it's not already in our list. + This can happen when we see a drive via symbolic link. + */ + for (i = 0; i < SDL_numcds; ++i) { + if (stbuf->st_rdev == SDL_cdmode[i]) { #ifdef DEBUG_CDROM - fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]); + fprintf (stderr, "Duplicate drive detected: %s == %s\n", + drive, SDL_cdlist[i]); #endif - return; - } - } + return; + } + } - /* Add this drive to our list */ - i = SDL_numcds; - SDL_cdlist[i] = SDL_strdup(drive); - if ( SDL_cdlist[i] == NULL ) { - SDL_OutOfMemory(); - return; - } - SDL_cdmode[i] = stbuf->st_rdev; - ++SDL_numcds; + /* Add this drive to our list */ + i = SDL_numcds; + SDL_cdlist[i] = SDL_strdup (drive); + if (SDL_cdlist[i] == NULL) { + SDL_OutOfMemory (); + return; + } + SDL_cdmode[i] = stbuf->st_rdev; + ++SDL_numcds; #ifdef DEBUG_CDROM - fprintf(stderr, "Added CD-ROM drive: %s\n", drive); + fprintf (stderr, "Added CD-ROM drive: %s\n", drive); #endif - } + } } -int SDL_SYS_CDInit(void) +int +SDL_SYS_CDInit (void) { - static char *checklist[] = { + static char *checklist[] = { #if defined(__OPENBSD__) - "?0 cd?c", "cdrom", NULL + "?0 cd?c", "cdrom", NULL #elif defined(__NETBSD__) - "?0 cd?d", "?0 cd?c", "cdrom", NULL + "?0 cd?d", "?0 cd?c", "cdrom", NULL #else - "?0 cd?c", "?0 acd?c", "cdrom", NULL + "?0 cd?c", "?0 acd?c", "cdrom", NULL #endif - }; - char *SDLcdrom; - int i, j, exists; - char drive[32]; - struct stat stbuf; + }; + char *SDLcdrom; + int i, j, exists; + char drive[32]; + struct stat stbuf; - /* Fill in our driver capabilities */ - SDL_CDcaps.Name = SDL_SYS_CDName; - SDL_CDcaps.Open = SDL_SYS_CDOpen; - SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; - SDL_CDcaps.Status = SDL_SYS_CDStatus; - SDL_CDcaps.Play = SDL_SYS_CDPlay; - SDL_CDcaps.Pause = SDL_SYS_CDPause; - SDL_CDcaps.Resume = SDL_SYS_CDResume; - SDL_CDcaps.Stop = SDL_SYS_CDStop; - SDL_CDcaps.Eject = SDL_SYS_CDEject; - SDL_CDcaps.Close = SDL_SYS_CDClose; + /* Fill in our driver capabilities */ + SDL_CDcaps.Name = SDL_SYS_CDName; + SDL_CDcaps.Open = SDL_SYS_CDOpen; + SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; + SDL_CDcaps.Status = SDL_SYS_CDStatus; + SDL_CDcaps.Play = SDL_SYS_CDPlay; + SDL_CDcaps.Pause = SDL_SYS_CDPause; + SDL_CDcaps.Resume = SDL_SYS_CDResume; + SDL_CDcaps.Stop = SDL_SYS_CDStop; + SDL_CDcaps.Eject = SDL_SYS_CDEject; + SDL_CDcaps.Close = SDL_SYS_CDClose; - /* Look in the environment for our CD-ROM drive list */ - SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */ - if ( SDLcdrom != NULL ) { - char *cdpath, *delim; - size_t len = SDL_strlen(SDLcdrom)+1; - cdpath = SDL_stack_alloc(char, len); - if ( cdpath != NULL ) { - SDL_strlcpy(cdpath, SDLcdrom, len); - SDLcdrom = cdpath; - do { - delim = SDL_strchr(SDLcdrom, ':'); - if ( delim ) { - *delim++ = '\0'; - } - if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) { - AddDrive(SDLcdrom, &stbuf); - } - if ( delim ) { - SDLcdrom = delim; - } else { - SDLcdrom = NULL; - } - } while ( SDLcdrom ); - SDL_stack_free(cdpath); - } + /* Look in the environment for our CD-ROM drive list */ + SDLcdrom = SDL_getenv ("SDL_CDROM"); /* ':' separated list of devices */ + if (SDLcdrom != NULL) { + char *cdpath, *delim; + size_t len = SDL_strlen (SDLcdrom) + 1; + cdpath = SDL_stack_alloc (char, len); + if (cdpath != NULL) { + SDL_strlcpy (cdpath, SDLcdrom, len); + SDLcdrom = cdpath; + do { + delim = SDL_strchr (SDLcdrom, ':'); + if (delim) { + *delim++ = '\0'; + } + if (CheckDrive (SDLcdrom, &stbuf) > 0) { + AddDrive (SDLcdrom, &stbuf); + } + if (delim) { + SDLcdrom = delim; + } else { + SDLcdrom = NULL; + } + } + while (SDLcdrom); + SDL_stack_free (cdpath); + } - /* If we found our drives, there's nothing left to do */ - if ( SDL_numcds > 0 ) { - return(0); - } - } + /* If we found our drives, there's nothing left to do */ + if (SDL_numcds > 0) { + return (0); + } + } - /* Scan the system for CD-ROM drives */ - for ( i=0; checklist[i]; ++i ) { - if ( checklist[i][0] == '?' ) { - char *insert; - exists = 1; - for ( j=checklist[i][1]; exists; ++j ) { - SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", &checklist[i][3]); - insert = SDL_strchr(drive, '?'); - if ( insert != NULL ) { - *insert = j; - } - switch (CheckDrive(drive, &stbuf)) { - /* Drive exists and is a CD-ROM */ - case 1: - AddDrive(drive, &stbuf); - break; - /* Drive exists, but isn't a CD-ROM */ - case 0: - break; - /* Drive doesn't exist */ - case -1: - exists = 0; - break; - } - } - } else { - SDL_snprintf(drive, SDL_arraysize(drive), "/dev/%s", checklist[i]); - if ( CheckDrive(drive, &stbuf) > 0 ) { - AddDrive(drive, &stbuf); - } - } - } - return(0); + /* Scan the system for CD-ROM drives */ + for (i = 0; checklist[i]; ++i) { + if (checklist[i][0] == '?') { + char *insert; + exists = 1; + for (j = checklist[i][1]; exists; ++j) { + SDL_snprintf (drive, SDL_arraysize (drive), "/dev/%s", + &checklist[i][3]); + insert = SDL_strchr (drive, '?'); + if (insert != NULL) { + *insert = j; + } + switch (CheckDrive (drive, &stbuf)) { + /* Drive exists and is a CD-ROM */ + case 1: + AddDrive (drive, &stbuf); + break; + /* Drive exists, but isn't a CD-ROM */ + case 0: + break; + /* Drive doesn't exist */ + case -1: + exists = 0; + break; + } + } + } else { + SDL_snprintf (drive, SDL_arraysize (drive), "/dev/%s", + checklist[i]); + if (CheckDrive (drive, &stbuf) > 0) { + AddDrive (drive, &stbuf); + } + } + } + return (0); } /* General ioctl() CD-ROM command function */ -static int SDL_SYS_CDioctl(int id, int command, void *arg) +static int +SDL_SYS_CDioctl (int id, int command, void *arg) { - int retval; + int retval; - retval = ioctl(id, command, arg); - if ( retval < 0 ) { - SDL_SetError("ioctl() error: %s", strerror(errno)); - } - return(retval); + retval = ioctl (id, command, arg); + if (retval < 0) { + SDL_SetError ("ioctl() error: %s", strerror (errno)); + } + return (retval); } -static const char *SDL_SYS_CDName(int drive) +static const char * +SDL_SYS_CDName (int drive) { - return(SDL_cdlist[drive]); + return (SDL_cdlist[drive]); } -static int SDL_SYS_CDOpen(int drive) +static int +SDL_SYS_CDOpen (int drive) { - return(open(SDL_cdlist[drive], (O_RDONLY|O_EXCL|O_NONBLOCK), 0)); + return (open (SDL_cdlist[drive], (O_RDONLY | O_EXCL | O_NONBLOCK), 0)); } -static int SDL_SYS_CDGetTOC(SDL_CD *cdrom) +static int +SDL_SYS_CDGetTOC (SDL_CD * cdrom) { - struct ioc_toc_header toc; - int i, okay; - struct ioc_read_toc_entry entry; - struct cd_toc_entry data; + struct ioc_toc_header toc; + int i, okay; + struct ioc_read_toc_entry entry; + struct cd_toc_entry data; - okay = 0; - if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCHEADER, &toc) == 0 ) { - cdrom->numtracks = toc.ending_track-toc.starting_track+1; - if ( cdrom->numtracks > SDL_MAX_TRACKS ) { - cdrom->numtracks = SDL_MAX_TRACKS; - } - /* Read all the track TOC entries */ - for ( i=0; i<=cdrom->numtracks; ++i ) { - if ( i == cdrom->numtracks ) { - cdrom->track[i].id = 0xAA; /* CDROM_LEADOUT */ - } else { - cdrom->track[i].id = toc.starting_track+i; - } - entry.starting_track = cdrom->track[i].id; - entry.address_format = CD_MSF_FORMAT; - entry.data_len = sizeof(data); - entry.data = &data; - if ( SDL_SYS_CDioctl(cdrom->id, CDIOREADTOCENTRYS, - &entry) < 0 ) { - break; - } else { - cdrom->track[i].type = data.control; - cdrom->track[i].offset = MSF_TO_FRAMES( - data.addr.msf.minute, - data.addr.msf.second, - data.addr.msf.frame); - cdrom->track[i].length = 0; - if ( i > 0 ) { - cdrom->track[i-1].length = - cdrom->track[i].offset- - cdrom->track[i-1].offset; - } - } - } - if ( i == (cdrom->numtracks+1) ) { - okay = 1; - } - } - return(okay ? 0 : -1); + okay = 0; + if (SDL_SYS_CDioctl (cdrom->id, CDIOREADTOCHEADER, &toc) == 0) { + cdrom->numtracks = toc.ending_track - toc.starting_track + 1; + if (cdrom->numtracks > SDL_MAX_TRACKS) { + cdrom->numtracks = SDL_MAX_TRACKS; + } + /* Read all the track TOC entries */ + for (i = 0; i <= cdrom->numtracks; ++i) { + if (i == cdrom->numtracks) { + cdrom->track[i].id = 0xAA; /* CDROM_LEADOUT */ + } else { + cdrom->track[i].id = toc.starting_track + i; + } + entry.starting_track = cdrom->track[i].id; + entry.address_format = CD_MSF_FORMAT; + entry.data_len = sizeof (data); + entry.data = &data; + if (SDL_SYS_CDioctl (cdrom->id, CDIOREADTOCENTRYS, &entry) < 0) { + break; + } else { + cdrom->track[i].type = data.control; + cdrom->track[i].offset = + MSF_TO_FRAMES (data.addr.msf.minute, + data.addr.msf.second, data.addr.msf.frame); + cdrom->track[i].length = 0; + if (i > 0) { + cdrom->track[i - 1].length = + cdrom->track[i].offset - cdrom->track[i - 1].offset; + } + } + } + if (i == (cdrom->numtracks + 1)) { + okay = 1; + } + } + return (okay ? 0 : -1); } /* Get CD-ROM status */ -static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position) +static CDstatus +SDL_SYS_CDStatus (SDL_CD * cdrom, int *position) { - CDstatus status; - struct ioc_toc_header toc; - struct ioc_read_subchannel info; - struct cd_sub_channel_info data; + CDstatus status; + struct ioc_toc_header toc; + struct ioc_read_subchannel info; + struct cd_sub_channel_info data; - info.address_format = CD_MSF_FORMAT; - info.data_format = CD_CURRENT_POSITION; - info.track = 0; - info.data_len = sizeof(data); - info.data = &data; - if ( ioctl(cdrom->id, CDIOCREADSUBCHANNEL, &info) < 0 ) { - if ( ERRNO_TRAYEMPTY(errno) ) { - status = CD_TRAYEMPTY; - } else { - status = CD_ERROR; - } - } else { - switch (data.header.audio_status) { - case CD_AS_AUDIO_INVALID: - case CD_AS_NO_STATUS: - /* Try to determine if there's a CD available */ - if (ioctl(cdrom->id,CDIOREADTOCHEADER,&toc)==0) - status = CD_STOPPED; - else - status = CD_TRAYEMPTY; - break; - case CD_AS_PLAY_COMPLETED: - status = CD_STOPPED; - break; - case CD_AS_PLAY_IN_PROGRESS: - status = CD_PLAYING; - break; - case CD_AS_PLAY_PAUSED: - status = CD_PAUSED; - break; - default: - status = CD_ERROR; - break; - } - } - if ( position ) { - if ( status == CD_PLAYING || (status == CD_PAUSED) ) { - *position = MSF_TO_FRAMES( - data.what.position.absaddr.msf.minute, - data.what.position.absaddr.msf.second, - data.what.position.absaddr.msf.frame); - } else { - *position = 0; - } - } - return(status); + info.address_format = CD_MSF_FORMAT; + info.data_format = CD_CURRENT_POSITION; + info.track = 0; + info.data_len = sizeof (data); + info.data = &data; + if (ioctl (cdrom->id, CDIOCREADSUBCHANNEL, &info) < 0) { + if (ERRNO_TRAYEMPTY (errno)) { + status = CD_TRAYEMPTY; + } else { + status = CD_ERROR; + } + } else { + switch (data.header.audio_status) { + case CD_AS_AUDIO_INVALID: + case CD_AS_NO_STATUS: + /* Try to determine if there's a CD available */ + if (ioctl (cdrom->id, CDIOREADTOCHEADER, &toc) == 0) + status = CD_STOPPED; + else + status = CD_TRAYEMPTY; + break; + case CD_AS_PLAY_COMPLETED: + status = CD_STOPPED; + break; + case CD_AS_PLAY_IN_PROGRESS: + status = CD_PLAYING; + break; + case CD_AS_PLAY_PAUSED: + status = CD_PAUSED; + break; + default: + status = CD_ERROR; + break; + } + } + if (position) { + if (status == CD_PLAYING || (status == CD_PAUSED)) { + *position = + MSF_TO_FRAMES (data.what.position.absaddr.msf.minute, + data.what.position.absaddr.msf.second, + data.what.position.absaddr.msf.frame); + } else { + *position = 0; + } + } + return (status); } /* Start play */ -static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) +static int +SDL_SYS_CDPlay (SDL_CD * cdrom, int start, int length) { - struct ioc_play_msf playtime; + struct ioc_play_msf playtime; - FRAMES_TO_MSF(start, - &playtime.start_m, &playtime.start_s, &playtime.start_f); - FRAMES_TO_MSF(start+length, - &playtime.end_m, &playtime.end_s, &playtime.end_f); + FRAMES_TO_MSF (start, + &playtime.start_m, &playtime.start_s, &playtime.start_f); + FRAMES_TO_MSF (start + length, + &playtime.end_m, &playtime.end_s, &playtime.end_f); #ifdef DEBUG_CDROM - fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", - playtime.start_m, playtime.start_s, playtime.start_f, - playtime.end_m, playtime.end_s, playtime.end_f); + fprintf (stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", + playtime.start_m, playtime.start_s, playtime.start_f, + playtime.end_m, playtime.end_s, playtime.end_f); #endif - ioctl(cdrom->id, CDIOCSTART, 0); - return(SDL_SYS_CDioctl(cdrom->id, CDIOCPLAYMSF, &playtime)); + ioctl (cdrom->id, CDIOCSTART, 0); + return (SDL_SYS_CDioctl (cdrom->id, CDIOCPLAYMSF, &playtime)); } /* Pause play */ -static int SDL_SYS_CDPause(SDL_CD *cdrom) +static int +SDL_SYS_CDPause (SDL_CD * cdrom) { - return(SDL_SYS_CDioctl(cdrom->id, CDIOCPAUSE, 0)); + return (SDL_SYS_CDioctl (cdrom->id, CDIOCPAUSE, 0)); } /* Resume play */ -static int SDL_SYS_CDResume(SDL_CD *cdrom) +static int +SDL_SYS_CDResume (SDL_CD * cdrom) { - return(SDL_SYS_CDioctl(cdrom->id, CDIOCRESUME, 0)); + return (SDL_SYS_CDioctl (cdrom->id, CDIOCRESUME, 0)); } /* Stop play */ -static int SDL_SYS_CDStop(SDL_CD *cdrom) +static int +SDL_SYS_CDStop (SDL_CD * cdrom) { - return(SDL_SYS_CDioctl(cdrom->id, CDIOCSTOP, 0)); + return (SDL_SYS_CDioctl (cdrom->id, CDIOCSTOP, 0)); } /* Eject the CD-ROM */ -static int SDL_SYS_CDEject(SDL_CD *cdrom) +static int +SDL_SYS_CDEject (SDL_CD * cdrom) { - return(SDL_SYS_CDioctl(cdrom->id, CDIOCEJECT, 0)); + return (SDL_SYS_CDioctl (cdrom->id, CDIOCEJECT, 0)); } /* Close the CD-ROM handle */ -static void SDL_SYS_CDClose(SDL_CD *cdrom) +static void +SDL_SYS_CDClose (SDL_CD * cdrom) { - close(cdrom->id); + close (cdrom->id); } -void SDL_SYS_CDQuit(void) +void +SDL_SYS_CDQuit (void) { - int i; + int i; - if ( SDL_numcds > 0 ) { - for ( i=0; i<SDL_numcds; ++i ) { - SDL_free(SDL_cdlist[i]); - } - SDL_numcds = 0; - } + if (SDL_numcds > 0) { + for (i = 0; i < SDL_numcds; ++i) { + SDL_free (SDL_cdlist[i]); + } + SDL_numcds = 0; + } } #endif /* SDL_CDROM_OPENBSD */ +/* vi: set ts=4 sw=4 expandtab: */