view docs/man3/SDL_VideoModeOK.3 @ 715:de0351c47596

Date: Mon, 01 Sep 2003 15:37:52 +0900 From: SUGIMOTO Sadahiro Subject: [SDL] [PATCH] bsd joystick Hi, on FreeBSD systems, I had troubles using a USB joystick with SDL. There are two problems in src/joystick/bsd/SDL_sysjoystick.c . 1. The macro __FreeBSD_version is compared to inappropriate numbers. According to http://www.jp.freebsd.org/cgi/cvsweb.cgi/src/lib/libusbhid/usbhid.h http://www.jp.freebsd.org/cgi/cvsweb.cgi/src/lib/libusbhid/Attic/libusb.h http://www.jp.freebsd.org/cgi/cvsweb.cgi/src/lib/libusbhid/Attic/libusbhid.h the APIs of USB HID are common in each following groups of OS versions, a. 4.1-4.5 b. 4.6-4.8, and 5.0 c. 5.1 2. open() error $ uname -sr FreeBSD 5.1-RELEASE $ ls -l /dev/uhid0 crw-r--r-- 1 root operator 122, 0 8 3 14:06 /dev/uhid0 Then, open("/dev/uhid0", O_RDWR) fails. It seems that this device file does not need to be writable, so O_RDONLY may be suitable.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 05 Sep 2003 15:20:47 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
line source

.TH "SDL_VideoModeOK" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_VideoModeOK\- Check to see if a particular video mode is supported\&.
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_VideoModeOK\fP\fR(\fBint width, int height, int bpp, Uint32 flags\fR);
.SH "DESCRIPTION"
.PP
\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)\&.
.PP
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\&.
.PP
The arguments to \fBSDL_VideoModeOK\fP are the same ones you would pass to \fISDL_SetVideoMode\fR
.SH "EXAMPLE"
.PP
.nf
\f(CWSDL_Surface *screen;
Uint32 bpp;
\&.
\&.
\&.
printf("Checking mode 640x480@16bpp\&.
");
bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE);

if(!bpp){
  printf("Mode not available\&.
");
  exit(-1);
}

printf("SDL Recommends 640x480@%dbpp\&.
", bpp);
screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE);
\&.
\&.\fR
.fi
.PP
.SH "SEE ALSO"
.PP
\fI\fBSDL_SetVideoMode\fP\fR, \fI\fBSDL_GetVideoInfo\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01