Mercurial > sdl-ios-xcode
view docs/man3/SDL_CD.3 @ 614:0b4c3f5ff63d
Date: Wed, 9 Apr 2003 18:21:33 -0230
From: Stephen Anthony <stephena@roadrunner.nf.net>
Subject: [SDL] First patch concerning 4.3 and refresh rates
OK, here's my first draft of the patch for the above subject.
A short explanation:
X 4.3 introduces many more modelines than older versions. This would be
fine, except it introduces many modes with the *same* resolution but
different refresh rates. And SDL won't necessarily pick the one with the
highest refresh rate.
So this patch restores SDL to X 4.2 functionality. That is, there is only
ever one refresh rate *per* resolution, and it is the highest possible.
This functionality can be totally disabled by using the environment
variable 'SDL_VIDEO_X11_USE_ALL_MODES' set equal to 1.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 20 Apr 2003 05:36:52 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_CD" "3" "Tue 11 Sep 2001, 22:58" "SDL" "SDL API Reference" .SH "NAME" SDL_CD\- CDROM Drive Information .SH "STRUCTURE DEFINITION" .PP .nf \f(CWtypedef struct{ int id; CDstatus status; int numtracks; int cur_track; int cur_frame; SDL_CDtrack track[SDL_MAX_TRACKS+1]; } SDL_CD;\fR .fi .PP .SH "STRUCTURE DATA" .TP 20 \fBid\fR Private drive identifier .TP 20 \fBstatus\fR Drive \fIstatus\fR .TP 20 \fBnumtracks\fR Number of tracks on the CD .TP 20 \fBcur_track\fR Current track .TP 20 \fBcur_frame\fR Current frame offset within the track .TP 20 \fBtrack\fR[SDL_MAX_TRACKS+1] Array of track descriptions\&. (see \fI\fBSDL_CDtrack\fR\fR) .SH "DESCRIPTION" .PP 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\&. .PP 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\&. .SH "EXAMPLES" .PP .nf \f(CWint min, sec, frame; int frame_offset; FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame); printf("Current Position: %d minutes, %d seconds, %d frames ", min, sec, frame); frame_offset=MSF_TO_FRAMES(min, sec, frame);\fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_CDOpen\fP\fR, \fI\fBSDL_CDtrack\fR\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58