mirror of
https://git.code.sf.net/p/quake/quakeforge-old
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161 lines
3.4 KiB
C
161 lines
3.4 KiB
C
/*
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context_x11.c
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general x11 context layer
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 2000 Zephaniah E. Hull <warp@whitestar.soark.net>
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Copyright (C) 1999,2000 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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$Id$
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*/
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#include <config.h>
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#include <ctype.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/keysym.h>
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#include <X11/extensions/XShm.h>
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#include <errno.h>
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#include <context_x11.h>
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#include <qtypes.h>
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#include <vid.h>
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#include <sys.h>
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static void (*event_handlers[LASTEvent]) (XEvent *);
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qboolean oktodraw = false;
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int x_shmeventtype;
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static int x_disp_ref_count = 0;
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Display *x_disp = NULL;
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qboolean
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x11_add_event(int event, void (*event_handler)(XEvent *))
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{
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if (event >= LASTEvent) {
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printf("event: %d, LASTEvent: %d\n", event, LASTEvent);
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return false;
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}
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if (event_handlers[event] != NULL)
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return false;
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event_handlers[event] = event_handler;
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return true;
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}
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qboolean
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x11_del_event(int event, void (*event_handler)(XEvent *))
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{
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if (event >= LASTEvent)
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return false;
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if (event_handlers[event] != event_handler)
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return false;
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event_handlers[event] = NULL;
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return true;
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}
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void
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x11_process_event( void )
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{
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XEvent x_event;
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XNextEvent(x_disp, &x_event);
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if ( x_event.type >= LASTEvent ) {
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// FIXME: KLUGE!!!!!!
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if (x_event.type == x_shmeventtype)
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oktodraw = 1;
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return;
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}
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if (event_handlers[x_event.type])
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event_handlers[x_event.type](&x_event);
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}
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void
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x11_process_events(void)
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{
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/* Get events from X server. */
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while ( XPending( x_disp )) {
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x11_process_event();
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}
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}
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// ========================================================================
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// Tragic death handler
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// ========================================================================
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static void
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TragicDeath(int signal_num)
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{
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//XCloseDisplay(x_disp);
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VID_Shutdown();
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Sys_Error("This death brought to you by the number %d\n", signal_num);
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}
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void
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x11_open_display( void )
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{
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struct sigaction sa;
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if ( !x_disp ) {
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x_disp = XOpenDisplay( NULL );
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if ( !x_disp ) {
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Sys_Error("x11_open_display: Could not open display [%s]\n", XDisplayName( NULL ));
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}
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// catch signals
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sigaction(SIGINT, 0, &sa);
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sigaction(SIGTERM, 0, &sa);
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sa.sa_handler = TragicDeath;
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sigaction(SIGINT, &sa, 0);
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sigaction(SIGTERM, &sa, 0);
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// for debugging only
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XSynchronize( x_disp, True );
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} else {
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x_disp_ref_count++;
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}
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}
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void
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x11_close_display( void )
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{
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if (!--x_disp_ref_count) {
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XCloseDisplay( x_disp );
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x_disp = NULL;
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}
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}
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