quakeforge-old/common/dga_check.c
Jeff Teunissen 9af36c78ff Removed personally offensive copyright notice (mine -- I'll let anyone
else take all the credit they want, keep me out of it); edited so that the
DGA/Vmode detection functions return 0 if HAS_DGA is not defined.
2000-01-11 04:18:13 +00:00

81 lines
1.8 KiB
C

/*
dga_check.c
Routines to check for XFree86 DGA and VidMode extensions
Copyright (C) 2000 Contributors of the QuakeForge Project
Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
Please see the file "AUTHORS" for a list of contributors
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA.
*/
#include <quakedef.h>
#include "dga_check.h"
#include <X11/Xlib.h>
#ifdef HAS_DGA
#include <X11/extensions/xf86dga.h>
#include <X11/extensions/xf86vmode.h>
#endif
/*
VID_CheckDGA
Check for the presence of the XFree86-DGA X server extension
*/
int
VID_CheckDGA(Display *dpy, int *maj_ver, int *min_ver)
{
#ifdef HAS_DGA
int event_base, error_base;
if (! XF86DGAQueryExtension(dpy, &event_base, &error_base)) {
return 0;
}
return XF86DGAQueryVersion(dpy, maj_ver, min_ver);
#else
return 0;
#endif // HAS_DGA
}
/*
VID_CheckVMode
Check for the presence of the XFree86-VidMode X server extension
*/
int
VID_CheckVMode(Display *dpy, int *maj_ver, int *min_ver)
{
#ifdef HAS_DGA
int event_base, error_base;
if (! XF86VidModeQueryExtension(dpy, &event_base, &error_base)) {
return 0;
}
return XF86VidModeQueryVersion(dpy, maj_ver, min_ver);
#else
return 0;
#endif // HAS_DGA
}