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https://git.code.sf.net/p/quake/quakeforge
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5f93c115ff
They're now an enum, and the flag part of the name is all lowercase, but now the flag definitions and names list will never get out of sync.
162 lines
3.7 KiB
C
162 lines
3.7 KiB
C
/*
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dga_check.c
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Routines to check for XFree86 DGA and VidMode extensions
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Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
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Copyright (C) 2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include <X11/Xlib.h>
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#include <X11/Xproto.h>
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#ifdef HAVE_DGA
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# ifdef DGA_OLD_HEADERS
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# include <X11/extensions/xf86dga.h>
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# include <X11/extensions/xf86dgastr.h>
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# else
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# include <X11/extensions/Xxf86dga.h>
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# include <X11/extensions/xf86dgaproto.h>
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# endif
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# ifndef XDGA_MAJOR_VERSION
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# ifdef XF86DGA_MAJOR_VERSION
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# define XDGA_MAJOR_VERSION XF86DGA_MAJOR_VERSION
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# else
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# error "Neither XDGA_MAJOR_VERSION nor XF86DGA_MAJOR_VERSION found."
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# endif
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# endif
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#endif
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#ifdef HAVE_VIDMODE
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# include <X11/extensions/xf86vmode.h>
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# ifdef DGA_OLD_HEADERS
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# include <X11/extensions/xf86vmstr.h>
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# else
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# include <X11/extensions/xf86vmproto.h>
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# endif
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#endif
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#include "QF/sys.h"
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#include "dga_check.h"
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/*
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VID_CheckDGA
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Check for the presence of the XFree86-DGA X server extension
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*/
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qboolean
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VID_CheckDGA (Display * dpy, int *maj_ver, int *min_ver, int *hasvideo)
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{
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#ifdef HAVE_DGA
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int event_base, error_base, dgafeat;
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int dummy, dummy_major, dummy_minor, dummy_video;
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if (!XQueryExtension (dpy, XF86DGANAME, &dummy, &dummy, &dummy)) {
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return false;
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}
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if (!XF86DGAQueryExtension (dpy, &event_base, &error_base)) {
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return false;
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}
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if (!maj_ver)
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maj_ver = &dummy_major;
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if (!min_ver)
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min_ver = &dummy_minor;
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if (!XF86DGAQueryVersion (dpy, maj_ver, min_ver)) {
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return false;
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}
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if ((!maj_ver) || (*maj_ver != XDGA_MAJOR_VERSION)) {
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Sys_MaskPrintf (SYS_vid, "VID: Incorrect DGA version: %d.%d, \n",
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*maj_ver, *min_ver);
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return false;
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}
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Sys_MaskPrintf (SYS_vid, "VID: DGA version: %d.%d\n", *maj_ver, *min_ver);
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if (!hasvideo)
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hasvideo = &dummy_video;
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if (!XF86DGAQueryDirectVideo (dpy, DefaultScreen (dpy), &dgafeat)) {
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*hasvideo = 0;
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} else {
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*hasvideo = (dgafeat & XF86DGADirectGraphics);
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}
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if (!(dgafeat & (XF86DGADirectPresent | XF86DGADirectMouse))) {
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return false;
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}
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return true;
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#else
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return false;
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#endif // HAVE_DGA
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}
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/*
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VID_CheckVMode
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Check for the presence of the XFree86-VidMode X server extension
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*/
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qboolean
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VID_CheckVMode (Display * dpy, int *maj_ver, int *min_ver)
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{
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#ifdef HAVE_VIDMODE
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int dummy, dummy_major, dummy_minor, event_base, error_base;
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if (!XQueryExtension (dpy, XF86VIDMODENAME, &dummy, &dummy, &dummy)) {
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return false;
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}
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if (!XF86VidModeQueryExtension (dpy, &event_base, &error_base)) {
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return false;
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}
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if (!maj_ver)
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maj_ver = &dummy_major;
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if (!min_ver)
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min_ver = &dummy_minor;
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if (!XF86VidModeQueryVersion (dpy, maj_ver, min_ver))
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return false;
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if ((!maj_ver) || (*maj_ver != XF86VIDMODE_MAJOR_VERSION)) {
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Sys_MaskPrintf (SYS_vid, "VID: Incorrect VidMode version: %d.%d\n",
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*maj_ver, *min_ver);
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return false;
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}
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Sys_MaskPrintf (SYS_vid, "VID: VidMode version: %d.%d\n",
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*maj_ver, *min_ver);
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return true;
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#else
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return false;
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#endif // HAVE_VIDMODE
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}
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