int SDL_SYS_CDInit(void)
{
metainit_t metainit={0,0,0,0};
metaopen_t metaopen;
int i, handle;
struct cdrom_subchnl info;
SDL_numcds = 0;
SDL_memset(metados_drives, 0, sizeof(metados_drives));
Metainit(&metainit);
if (metainit.version == NULL) {
#ifdef DEBUG_CDROM
fprintf(stderr, "MetaDOS not installed\n");
#endif
return 0;
}
if (metainit.drives_map == 0) {
#ifdef DEBUG_CDROM
fprintf(stderr, "No MetaDOS devices present\n");
#endif
return 0;
}
for (i='A'; i<='Z'; i++) {
metados_drives[SDL_numcds].device[0] = 0;
metados_drives[SDL_numcds].device[1] = ':';
metados_drives[SDL_numcds].device[2] = 0;
if (metainit.drives_map & (1<<(i-'A'))) {
handle = Metaopen(i, &metaopen);
if (handle == 0) {
info.cdsc_format = CDROM_MSF;
if ( (Metaioctl(i, METADOS_IOCTL_MAGIC, CDROMSUBCHNL, &info) == 0) || ERRNO_TRAYEMPTY(errno) ) {
metados_drives[SDL_numcds].device[0] = i;
++SDL_numcds;
}
Metaclose(i);
}
}
}
/* Fill in our driver capabilities */
SDL_CDcaps.Name = SDL_SYS_CDName;
SDL_CDcaps.Open = SDL_SYS_CDOpen;
SDL_CDcaps.Close = SDL_SYS_CDClose;
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;
return 0;
}
static int SDL_SYS_CDOpen(int drive)
{
int handle;
handle = Metaopen(metados_drives[drive].device[0], &(metados_drives[drive].metaopen));
if (handle == 0) {
return drive;
}
return -1;
}