Mercurial > sdl-ios-xcode
view docs/man3/SDL_JoyAxisEvent.3 @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 11 Oct 2005 18:16:12 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_JoyAxisEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_JoyAxisEvent\- Joystick axis motion event structure .SH "STRUCTURE DEFINITION" .PP .nf \f(CWtypedef struct{ Uint8 type; Uint8 which; Uint8 axis; Sint16 value; } SDL_JoyAxisEvent;\fR .fi .PP .SH "STRUCTURE DATA" .TP 20 \fBtype\fR \fBSDL_JOYAXISMOTION\fP .TP 20 \fBwhich\fR Joystick device index .TP 20 \fBaxis\fR Joystick axis index .TP 20 \fBvalue\fR Axis value (range: -32768 to 32767) .SH "DESCRIPTION" .PP \fBSDL_JoyAxisEvent\fR is a member of the \fI\fBSDL_Event\fR\fR union and is used when an event of type \fBSDL_JOYAXISMOTION\fP is reported\&. .PP A \fBSDL_JOYAXISMOTION\fP event occurs when ever a user moves an axis on the joystick\&. The field \fBwhich\fR is the index of the joystick that reported the event and \fBaxis\fR is the index of the axis (for a more detailed explaination see the \fIJoystick section\fR)\&. \fBvalue\fR is the current position of the axis\&. .SH "SEE ALSO" .PP \fI\fBSDL_Event\fR\fR, \fIJoystick Functions\fR, \fI\fBSDL_JoystickEventState\fP\fR, \fI\fBSDL_JoystickGetAxis\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59