Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_VideoModeOK.3 @ 872:e7be95d758e8
Date: Fri, 05 Mar 2004 16:08:01 +0000
From: Alan Swanson
Subject: Re: [SDL] Fatal signal when initiaize with USB joystick on 2.6.2 kern
On Fri, 2004-03-05 at 15:09, Sam Lantinga wrote:
> > Fred, how does the attached patch work for you? Do all your axes work?
>
> I think you meant the two lines to be reversed.
> I checked a more robust version of this into CVS. Fred, can you see if
> it works?
You've misread the code. :-/
For coef[0] and coef[1], it is (values[2]+values[1]) / 2 and then add
or subtract values[4] to the answer.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 06 Mar 2004 02:58:06 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_VideoModeOK" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_VideoModeOK\- Check to see if a particular video mode is supported\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBint \fBSDL_VideoModeOK\fP\fR(\fBint width, int height, int bpp, Uint32 flags\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 \fBSDL_VideoModeOK\fP returns \fB0\fR if the requested mode is not supported under any bit depth, or returns the bits-per-pixel of the closest available mode with the given width, height and requested \fIsurface\fR flags (see \fI\fBSDL_SetVideoMode\fP\fR)\&. | |
| 12 .PP | |
| 13 The bits-per-pixel value returned is only a suggested mode\&. You can usually request and bpp you want when \fIsetting\fR the video mode and SDL will emulate that color depth with a shadow video surface\&. | |
| 14 .PP | |
| 15 The arguments to \fBSDL_VideoModeOK\fP are the same ones you would pass to \fISDL_SetVideoMode\fR | |
| 16 .SH "EXAMPLE" | |
| 17 .PP | |
| 18 .nf | |
| 19 \f(CWSDL_Surface *screen; | |
| 20 Uint32 bpp; | |
| 21 \&. | |
| 22 \&. | |
| 23 \&. | |
| 24 printf("Checking mode 640x480@16bpp\&. | |
| 25 "); | |
| 26 bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE); | |
| 27 | |
| 28 if(!bpp){ | |
| 29 printf("Mode not available\&. | |
| 30 "); | |
| 31 exit(-1); | |
| 32 } | |
| 33 | |
| 34 printf("SDL Recommends 640x480@%dbpp\&. | |
| 35 ", bpp); | |
| 36 screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE); | |
| 37 \&. | |
| 38 \&.\fR | |
| 39 .fi | |
| 40 .PP | |
| 41 .SH "SEE ALSO" | |
| 42 .PP | |
| 43 \fI\fBSDL_SetVideoMode\fP\fR, \fI\fBSDL_GetVideoInfo\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
44 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |