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- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001 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@devolution.com
- */
-
- /* This is the CD-audio control API for Simple DirectMedia Layer */
-
- import SDL_types;
-
- extern(C):
-
- /* In order to use these functions, SDL_Init() must have been called
- with the SDL_INIT_CDROM flag. This causes SDL to scan the system
- for CD-ROM drives, and load appropriate drivers.
- */
-
- /* The maximum number of CD-ROM tracks on a disk */
- const int SDL_MAX_TRACKS = 99;
-
- /* The types of CD-ROM track possible */
- const uint SDL_AUDIO_TRACK = 0x00;
- const uint SDL_DATA_TRACK = 0x04;
-
- /* The possible states which a CD-ROM drive can be in. */
- alias int CDstatus;
- enum {
- CD_TRAYEMPTY,
- CD_STOPPED,
- CD_PLAYING,
- CD_PAUSED,
- CD_ERROR = -1
- }
-
- /* Given a status, returns true if there's a disk in the drive */
- bit CD_INDRIVE(int status) { return status > 0; }
-
- struct SDL_CDtrack {
- Uint8 id; /* Track number */
- Uint8 type; /* Data or audio track */
- Uint16 unused;
- Uint32 length; /* Length, in frames, of this track */
- Uint32 offset; /* Offset, in frames, from start of disk */
- }
-
- /* This structure is only current as of the last call to SDL_CDStatus() */
- struct SDL_CD {
- int id; /* Private drive identifier */
- CDstatus status; /* Current drive status */
-
- /* The rest of this structure is only valid if there's a CD in drive */
- int numtracks; /* Number of tracks on disk */
- int cur_track; /* Current track position */
- int cur_frame; /* Current frame offset within current track */
- SDL_CDtrack track[SDL_MAX_TRACKS+1];
- }
-
- /* Conversion functions from frames to Minute/Second/Frames and vice versa */
- const uint CD_FPS = 75;
- void FRAMES_TO_MSF(int f, out int M, out int S, out int F)
- {
- int value = f;
- F = value % CD_FPS;
- value /= CD_FPS;
- S = value % 60;
- value /= 60;
- M = value;
- }
-
- int MSF_TO_FRAMES(int M, int S, int F)
- {
- return M * 60 * CD_FPS + S * CD_FPS + F;
- }
-
- /* CD-audio API functions: */
-
- /* Returns the number of CD-ROM drives on the system, or -1 if
- SDL_Init() has not been called with the SDL_INIT_CDROM flag.
- */
- int SDL_CDNumDrives();
-
- /* Returns a human-readable, system-dependent identifier for the CD-ROM.
- Example:
- "/dev/cdrom"
- "E:"
- "/dev/disk/ide/1/master"
- */
- char * SDL_CDName(int drive);
-
- /* Opens a CD-ROM drive for access. It returns a drive handle on success,
- or NULL if the drive was invalid or busy. This newly opened CD-ROM
- becomes the default CD used when other CD functions are passed a NULL
- CD-ROM handle.
- Drives are numbered starting with 0. Drive 0 is the system default CD-ROM.
- */
- SDL_CD * SDL_CDOpen(int drive);
-
- /* This function returns the current status of the given drive.
- If the drive has a CD in it, the table of contents of the CD and current
- play position of the CD will be stored in the SDL_CD structure.
- */
- CDstatus SDL_CDStatus(SDL_CD *cdrom);
-
- /* Play the given CD starting at 'start_track' and 'start_frame' for 'ntracks'
- tracks and 'nframes' frames. If both 'ntrack' and 'nframe' are 0, play
- until the end of the CD. This function will skip data tracks.
- This function should only be called after calling SDL_CDStatus() to
- get track information about the CD.
- For example:
- // Play entire CD:
- if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
- SDL_CDPlayTracks(cdrom, 0, 0, 0, 0);
- // Play last track:
- if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
- SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0);
- }
- // Play first and second track and 10 seconds of third track:
- if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
- SDL_CDPlayTracks(cdrom, 0, 0, 2, 10);
-
- This function returns 0, or -1 if there was an error.
- */
- int SDL_CDPlayTracks(SDL_CD *cdrom,
- int start_track, int start_frame, int ntracks, int nframes);
-
- /* Play the given CD starting at 'start' frame for 'length' frames.
- It returns 0, or -1 if there was an error.
- */
- int SDL_CDPlay(SDL_CD *cdrom, int start, int length);
-
- /* Pause play -- returns 0, or -1 on error */
- int SDL_CDPause(SDL_CD *cdrom);
-
- /* Resume play -- returns 0, or -1 on error */
- int SDL_CDResume(SDL_CD *cdrom);
-
- /* Stop play -- returns 0, or -1 on error */
- int SDL_CDStop(SDL_CD *cdrom);
-
- /* Eject CD-ROM -- returns 0, or -1 on error */
- int SDL_CDEject(SDL_CD *cdrom);
-
- /* Closes the handle for the CD-ROM drive */
- void SDL_CDClose(SDL_CD *cdrom);
-