mirror of
https://git.code.sf.net/p/quake/newtree
synced 2024-11-25 21:41:57 +00:00
125 lines
2.6 KiB
C
125 lines
2.6 KiB
C
/*
|
|
dga_check.c
|
|
|
|
Routines to check for XFree86 DGA and VidMode extensions
|
|
|
|
Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
|
|
Copyright (C) 2000 contributors of the QuakeForge project
|
|
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
|
|
|
|
$Id$
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <X11/Xlib.h>
|
|
|
|
#ifdef HAVE_DGA
|
|
#include <X11/extensions/xf86dga.h>
|
|
#endif
|
|
#ifdef HAVE_VIDMODE
|
|
#include <X11/extensions/xf86vmode.h>
|
|
#endif
|
|
|
|
#include "dga_check.h"
|
|
|
|
|
|
/*
|
|
VID_CheckDGA
|
|
|
|
Check for the presence of the XFree86-DGA X server extension
|
|
*/
|
|
qboolean
|
|
VID_CheckDGA (Display * dpy, int *maj_ver, int *min_ver, int *hasvideo)
|
|
{
|
|
#ifdef HAVE_DGA
|
|
int event_base, error_base, dgafeat, dummy;
|
|
|
|
if (!XQueryExtension (dpy, "XFree86-DGA", &dummy, &dummy, &dummy)) {
|
|
return false;
|
|
}
|
|
|
|
if (!XF86DGAQueryExtension (dpy, &event_base, &error_base)) {
|
|
return false;
|
|
}
|
|
|
|
if (!maj_ver)
|
|
maj_ver = &dummy;
|
|
if (!min_ver)
|
|
min_ver = &dummy;
|
|
|
|
if (!XF86DGAQueryVersion (dpy, maj_ver, min_ver)) {
|
|
return false;
|
|
}
|
|
|
|
if (!hasvideo)
|
|
hasvideo = &dummy;
|
|
|
|
if (!XF86DGAQueryDirectVideo (dpy, DefaultScreen (dpy), &dgafeat)) {
|
|
*hasvideo = 0;
|
|
} else {
|
|
*hasvideo = (dgafeat & XF86DGADirectPresent);
|
|
}
|
|
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif // HAVE_DGA
|
|
}
|
|
|
|
|
|
/*
|
|
VID_CheckVMode
|
|
|
|
Check for the presence of the XFree86-VidMode X server extension
|
|
*/
|
|
qboolean
|
|
VID_CheckVMode (Display * dpy, int *maj_ver, int *min_ver)
|
|
{
|
|
#if defined(HAVE_VIDMODE)
|
|
int event_base, error_base;
|
|
int dummy;
|
|
|
|
if (!XQueryExtension (dpy, "XFree86-VidModeExtension", &dummy, &dummy, &dummy)) {
|
|
return false;
|
|
}
|
|
|
|
if (!XF86VidModeQueryExtension (dpy, &event_base, &error_base)) {
|
|
return false;
|
|
}
|
|
|
|
if (maj_ver == NULL)
|
|
maj_ver = &dummy;
|
|
if (min_ver == NULL)
|
|
min_ver = &dummy;
|
|
|
|
if (!XF86VidModeQueryVersion (dpy, maj_ver, min_ver)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif // HAVE_VIDMODE
|
|
}
|