Mercurial > sdl-ios-xcode
view src/cdrom/mint/SDL_syscdrom.c @ 2847:7d020441fa81
Don't hardcode RECT for fragment program texture targets.
Now we can generate what a given system needs when compiling the shader.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Sun, 07 Dec 2008 07:06:34 +0000 |
parents | c121d94672cb |
children | 99210400e8b9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifdef SDL_CDROM_MINT /* Atari MetaDOS CD-ROM functions Patrice Mandin */ #include <errno.h> #include <cdromio.h> #include <metados.h> #include "SDL_cdrom.h" #include "../SDL_syscdrom.h" /* Some ioctl() errno values which occur when the tray is empty */ #ifndef ENOMEDIUM #define ENOMEDIUM ENOENT #endif #define ERRNO_TRAYEMPTY(errno) \ ((errno == EIO) || (errno == ENOENT) || \ (errno == EINVAL) || (errno == ENOMEDIUM)) /* The maximum number of CD-ROM drives we'll detect */ #define MAX_DRIVES 32 typedef struct { unsigned char device[3]; /* Physical device letter + ':' + '\0' */ metaopen_t metaopen; /* Infos on opened drive */ } metados_drive_t; static metados_drive_t metados_drives[MAX_DRIVES]; /* The system-dependent CD control functions */ static const char *SDL_SYS_CDName(int drive); static int SDL_SYS_CDOpen(int drive); static void SDL_SYS_CDClose(SDL_CD * cdrom); static int SDL_SYS_CDioctl(int id, int command, void *arg); 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); int SDL_SYS_CDInit(void) { metainit_t metainit = { 0, 0, 0, 0 }; metaopen_t metaopen; int i, handle; struct cdrom_subchnl info; Metainit(&metainit); if (metainit.version == NULL) { #ifdef DEBUG_CDROM fprintf(stderr, "MetaDOS not installed\n"); #endif return -1; } if (metainit.drives_map == 0) { #ifdef DEBUG_CDROM fprintf(stderr, "No MetaDOS devices present\n"); #endif return -1; } SDL_numcds = 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; } void SDL_SYS_CDQuit(void) { SDL_numcds = 0; } static const char * SDL_SYS_CDName(int drive) { return (metados_drives[drive].device); } 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; } static void SDL_SYS_CDClose(SDL_CD * cdrom) { Metaclose(metados_drives[cdrom->id].device[0]); } static int SDL_SYS_CDioctl(int id, int command, void *arg) { int retval; retval = Metaioctl(metados_drives[id].device[0], METADOS_IOCTL_MAGIC, command, arg); if (retval < 0) { SDL_SetError("ioctl() error: %s", strerror(errno)); } return (retval); } static int SDL_SYS_CDGetTOC(SDL_CD * cdrom) { int i, okay; struct cdrom_tochdr toc; struct cdrom_tocentry entry; /* Use standard ioctl() */ if (SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) < 0) { return -1; } cdrom->numtracks = toc.cdth_trk1 - toc.cdth_trk0 + 1; if (cdrom->numtracks > SDL_MAX_TRACKS) { cdrom->numtracks = SDL_MAX_TRACKS; } /* Read all the track TOC entries */ okay = 1; for (i = 0; i <= cdrom->numtracks; ++i) { if (i == cdrom->numtracks) { cdrom->track[i].id = CDROM_LEADOUT; } else { cdrom->track[i].id = toc.cdth_trk0 + i; } entry.cdte_track = cdrom->track[i].id; entry.cdte_format = CDROM_MSF; if (SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCENTRY, &entry) < 0) { okay = 0; break; } else { if (entry.cdte_ctrl & CDROM_DATA_TRACK) { cdrom->track[i].type = SDL_DATA_TRACK; } else { cdrom->track[i].type = SDL_AUDIO_TRACK; } cdrom->track[i].offset = MSF_TO_FRAMES(entry.cdte_addr.msf.minute, entry.cdte_addr.msf.second, entry.cdte_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; } } } return (okay ? 0 : -1); } /* Get CD-ROM status */ static CDstatus SDL_SYS_CDStatus(SDL_CD * cdrom, int *position) { CDstatus status; struct cdrom_tochdr toc; struct cdrom_subchnl info; info.cdsc_format = CDROM_MSF; if (SDL_SYS_CDioctl(cdrom->id, CDROMSUBCHNL, &info) < 0) { if (ERRNO_TRAYEMPTY(errno)) { status = CD_TRAYEMPTY; } else { status = CD_ERROR; } } else { switch (info.cdsc_audiostatus) { case CDROM_AUDIO_INVALID: case CDROM_AUDIO_NO_STATUS: /* Try to determine if there's a CD available */ if (SDL_SYS_CDioctl(cdrom->id, CDROMREADTOCHDR, &toc) == 0) { status = CD_STOPPED; } else { status = CD_TRAYEMPTY; } break; case CDROM_AUDIO_COMPLETED: status = CD_STOPPED; break; case CDROM_AUDIO_PLAY: status = CD_PLAYING; break; case CDROM_AUDIO_PAUSED: /* Workaround buggy CD-ROM drive */ if (info.cdsc_trk == CDROM_LEADOUT) { status = CD_STOPPED; } else { status = CD_PAUSED; } break; default: status = CD_ERROR; break; } } if (position) { if (status == CD_PLAYING || (status == CD_PAUSED)) { *position = MSF_TO_FRAMES(info.cdsc_absaddr.msf.minute, info.cdsc_absaddr.msf.second, info.cdsc_absaddr.msf.frame); } else { *position = 0; } } return (status); } /* Start play */ static int SDL_SYS_CDPlay(SDL_CD * cdrom, int start, int length) { struct cdrom_msf playtime; FRAMES_TO_MSF(start, &playtime.cdmsf_min0, &playtime.cdmsf_sec0, &playtime.cdmsf_frame0); FRAMES_TO_MSF(start + length, &playtime.cdmsf_min1, &playtime.cdmsf_sec1, &playtime.cdmsf_frame1); #ifdef DEBUG_CDROM fprintf(stderr, "Trying to play from %d:%d:%d to %d:%d:%d\n", playtime.cdmsf_min0, playtime.cdmsf_sec0, playtime.cdmsf_frame0, playtime.cdmsf_min1, playtime.cdmsf_sec1, playtime.cdmsf_frame1); #endif return SDL_SYS_CDioctl(cdrom->id, CDROMPLAYMSF, &playtime); } /* Pause play */ static int SDL_SYS_CDPause(SDL_CD * cdrom) { return SDL_SYS_CDioctl(cdrom->id, CDROMPAUSE, 0); } /* Resume play */ static int SDL_SYS_CDResume(SDL_CD * cdrom) { return SDL_SYS_CDioctl(cdrom->id, CDROMRESUME, 0); } /* Stop play */ static int SDL_SYS_CDStop(SDL_CD * cdrom) { return SDL_SYS_CDioctl(cdrom->id, CDROMSTOP, 0); } /* Eject the CD-ROM */ static int SDL_SYS_CDEject(SDL_CD * cdrom) { return SDL_SYS_CDioctl(cdrom->id, CDROMEJECT, 0); } #endif /* SDL_CDROM_MINT */ /* vi: set ts=4 sw=4 expandtab: */