| e14743d1 |
1 | .TH "SDL_CD" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference" |
| 2 | .SH "NAME" |
| 3 | SDL_CD \- CDROM Drive Information |
| 4 | .SH "STRUCTURE DEFINITION" |
| 5 | .PP |
| 6 | .nf |
| 7 | \f(CWtypedef struct{ |
| 8 | int id; |
| 9 | CDstatus status; |
| 10 | int numtracks; |
| 11 | int cur_track; |
| 12 | int cur_frame; |
| 13 | SDL_CDtrack track[SDL_MAX_TRACKS+1]; |
| 14 | } SDL_CD;\fR |
| 15 | .fi |
| 16 | .PP |
| 17 | .SH "STRUCTURE DATA" |
| 18 | .TP 20 |
| 19 | \fBid\fR |
| 20 | Private drive identifier |
| 21 | .TP 20 |
| 22 | \fBstatus\fR |
| 23 | Drive \fIstatus\fR |
| 24 | .TP 20 |
| 25 | \fBnumtracks\fR |
| 26 | Number of tracks on the CD |
| 27 | .TP 20 |
| 28 | \fBcur_track\fR |
| 29 | Current track |
| 30 | .TP 20 |
| 31 | \fBcur_frame\fR |
| 32 | Current frame offset within the track |
| 33 | .TP 20 |
| 34 | \fBtrack\fR[SDL_MAX_TRACKS+1] |
| 35 | Array of track descriptions\&. (see \fI\fBSDL_CDtrack\fR\fR) |
| 36 | .SH "DESCRIPTION" |
| 37 | .PP |
| 38 | An \fBSDL_CD\fR structure is returned by \fI\fBSDL_CDOpen\fP\fR\&. It represents an opened CDROM device and stores information on the layout of the tracks on the disc\&. |
| 39 | .PP |
| 40 | A frame is the base data unit of a CD\&. \fBCD_FPS\fP frames is equal to 1 second of music\&. SDL provides two macros for converting between time and frames: \fBFRAMES_TO_MSF(f, M,S,F)\fP and \fBMSF_TO_FRAMES\fP\&. |
| 41 | .SH "EXAMPLES" |
| 42 | .PP |
| 43 | .nf |
| 44 | \f(CWint min, sec, frame; |
| 45 | int frame_offset; |
| 46 | |
| 47 | FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame); |
| 48 | printf("Current Position: %d minutes, %d seconds, %d frames |
| 49 | ", min, sec, frame); |
| 50 | |
| 51 | frame_offset=MSF_TO_FRAMES(min, sec, frame);\fR |
| 52 | .fi |
| 53 | .PP |
| 54 | .SH "SEE ALSO" |
| 55 | .PP |
| 56 | \fI\fBSDL_CDOpen\fP\fR, \fI\fBSDL_CDtrack\fR\fR |
| 57 | .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58 |
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