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Diffstat (limited to 'src/SDL12/include/SDL_cdrom.h')
| -rw-r--r-- | src/SDL12/include/SDL_cdrom.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/SDL12/include/SDL_cdrom.h b/src/SDL12/include/SDL_cdrom.h new file mode 100644 index 0000000..fff5cfa --- /dev/null +++ b/src/SDL12/include/SDL_cdrom.h @@ -0,0 +1,202 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2009 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +/** + * @file SDL_cdrom.h + * This is the CD-audio control API for Simple DirectMedia Layer + */ + +#ifndef _SDL_cdrom_h +#define _SDL_cdrom_h + +#include "SDL_stdinc.h" +#include "SDL_error.h" + +#include "begin_code.h" +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @file SDL_cdrom.h + * 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 */ +#define SDL_MAX_TRACKS 99 + +/** @name Track Types + * The types of CD-ROM track possible + */ +/*@{*/ +#define SDL_AUDIO_TRACK 0x00 +#define SDL_DATA_TRACK 0x04 +/*@}*/ + +/** The possible states which a CD-ROM drive can be in. */ +typedef enum { + CD_TRAYEMPTY, + CD_STOPPED, + CD_PLAYING, + CD_PAUSED, + CD_ERROR = -1 +} CDstatus; + +/** Given a status, returns true if there's a disk in the drive */ +#define CD_INDRIVE(status) ((int)(status) > 0) + +typedef 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 */ +} SDL_CDtrack; + +/** This structure is only current as of the last call to SDL_CDStatus() */ +typedef 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]; + /*@}*/ +} SDL_CD; + +/** @name Frames / MSF Conversion Functions + * Conversion functions from frames to Minute/Second/Frames and vice versa + */ +/*@{*/ +#define CD_FPS 75 +#define FRAMES_TO_MSF(f, M,S,F) { \ + int value = f; \ + *(F) = value%CD_FPS; \ + value /= CD_FPS; \ + *(S) = value%60; \ + value /= 60; \ + *(M) = value; \ +} +#define MSF_TO_FRAMES(M, S, F) ((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. + */ +extern DECLSPEC int SDLCALL SDL_CDNumDrives(void); + +/** + * Returns a human-readable, system-dependent identifier for the CD-ROM. + * Example: + * - "/dev/cdrom" + * - "E:" + * - "/dev/disk/ide/1/master" + */ +extern DECLSPEC const char * SDLCALL 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. + */ +extern DECLSPEC SDL_CD * SDLCALL 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. + */ +extern DECLSPEC CDstatus SDLCALL 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: + * @code + * // 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); + * @endcode + * + * @return This function returns 0, or -1 if there was an error. + */ +extern DECLSPEC int SDLCALL 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. + * @return It returns 0, or -1 if there was an error. + */ +extern DECLSPEC int SDLCALL SDL_CDPlay(SDL_CD *cdrom, int start, int length); + +/** Pause play + * @return returns 0, or -1 on error + */ +extern DECLSPEC int SDLCALL SDL_CDPause(SDL_CD *cdrom); + +/** Resume play + * @return returns 0, or -1 on error + */ +extern DECLSPEC int SDLCALL SDL_CDResume(SDL_CD *cdrom); + +/** Stop play + * @return returns 0, or -1 on error + */ +extern DECLSPEC int SDLCALL SDL_CDStop(SDL_CD *cdrom); + +/** Eject CD-ROM + * @return returns 0, or -1 on error + */ +extern DECLSPEC int SDLCALL SDL_CDEject(SDL_CD *cdrom); + +/** Closes the handle for the CD-ROM drive */ +extern DECLSPEC void SDLCALL SDL_CDClose(SDL_CD *cdrom); + + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif +#include "close_code.h" + +#endif /* _SDL_video_h */ |