mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-24 05:11:42 +00:00
483 lines
11 KiB
C
483 lines
11 KiB
C
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/*
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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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 <limits.h>
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#include <sys/poll.h>
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#ifdef HAVE_VIDMODE
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# include <X11/extensions/xf86vmode.h>
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#endif
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#include "QF/console.h"
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#include "context_x11.h"
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#include "QF/cvar.h"
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#include "dga_check.h"
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#include "QF/input.h"
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#include "QF/qargs.h"
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#include "QF/qtypes.h"
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#include "QF/sys.h"
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#include "QF/va.h"
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#include "QF/vid.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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int x_screen;
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Window x_root = None;
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XVisualInfo *x_visinfo;
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Visual *x_vis;
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Window x_win;
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Cursor nullcursor = None;
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static Atom aWMDelete = 0;
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#define X_MASK (VisibilityChangeMask | StructureNotifyMask | ExposureMask)
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#ifdef HAVE_VIDMODE
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static XF86VidModeModeInfo **vidmodes;
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static int nummodes;
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static int original_mode = 0;
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#endif
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static qboolean vidmode_avail = false;
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static qboolean vidmode_active = false;
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cvar_t *vid_fullscreen;
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cvar_t *vid_system_gamma;
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qboolean vid_gamma_avail;
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qboolean vid_fullscreen_active;
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static double x_gamma;
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static int xss_timeout;
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static int xss_interval;
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static int xss_blanking;
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static int xss_exposures;
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qboolean
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X11_AddEvent (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])
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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_RemoveEvent (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_ProcessEvent (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_ProcessEvents (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_ProcessEvent ();
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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 sig)
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{
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printf ("Received signal %d, exiting...\n", sig);
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Sys_Quit ();
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exit (sig);
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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_OpenDisplay (void)
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{
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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_OpenDisplay: Could not open display [%s]\n",
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XDisplayName (NULL));
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}
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x_screen = DefaultScreen (x_disp);
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x_root = RootWindow (x_disp, x_screen);
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// catch signals
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signal (SIGHUP, TragicDeath);
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signal (SIGINT, TragicDeath);
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signal (SIGQUIT, TragicDeath);
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signal (SIGILL, TragicDeath);
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signal (SIGTRAP, TragicDeath);
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signal (SIGIOT, TragicDeath);
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signal (SIGBUS, TragicDeath);
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// signal(SIGFPE, TragicDeath);
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signal (SIGSEGV, TragicDeath);
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signal (SIGTERM, TragicDeath);
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// for debugging only
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XSynchronize (x_disp, True);
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x_disp_ref_count = 1;
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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_CloseDisplay (void)
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{
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if (nullcursor != None) {
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XFreeCursor (x_disp, nullcursor);
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nullcursor = None;
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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 = 0;
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}
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}
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/*
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X11_CreateNullCursor
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Create an empty cursor (in other words, make it disappear)
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*/
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void
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X11_CreateNullCursor (void)
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{
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Pixmap cursormask;
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XGCValues xgc;
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GC gc;
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XColor dummycolour;
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if (nullcursor != None)
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return;
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cursormask = XCreatePixmap (x_disp, x_root, 1, 1, 1);
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xgc.function = GXclear;
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gc = XCreateGC (x_disp, cursormask, GCFunction, &xgc);
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XFillRectangle (x_disp, cursormask, gc, 0, 0, 1, 1);
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dummycolour.pixel = 0;
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dummycolour.red = 0;
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dummycolour.flags = 04;
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nullcursor = XCreatePixmapCursor (x_disp, cursormask, cursormask,
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&dummycolour, &dummycolour, 0, 0);
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XFreePixmap (x_disp, cursormask);
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XFreeGC (x_disp, gc);
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XDefineCursor (x_disp, x_win, nullcursor);
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}
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void
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X11_SetVidMode (int width, int height)
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{
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const char *str = getenv ("MESA_GLX_FX");
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if (str && (tolower (*str) == 'f')) {
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Cvar_Set (vid_fullscreen, "1");
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}
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XGetScreenSaver (x_disp, &xss_timeout, &xss_interval, &xss_blanking,
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&xss_exposures);
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#ifdef HAVE_VIDMODE
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vidmode_avail = VID_CheckVMode (x_disp, NULL, NULL);
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if (vidmode_avail) {
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vid_gamma_avail = ((x_gamma = X11_GetGamma ()) > 0);
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}
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if (vid_fullscreen->int_val && vidmode_avail) {
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int i, dotclock;
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int best_mode = 0;
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qboolean found_mode = false;
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XF86VidModeModeLine orig_data;
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XF86VidModeGetAllModeLines (x_disp, x_screen, &nummodes, &vidmodes);
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XF86VidModeGetModeLine (x_disp, x_screen, &dotclock, &orig_data);
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for (i = 0; i < nummodes; i++) {
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if ((vidmodes[i]->hdisplay == orig_data.hdisplay) &&
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(vidmodes[i]->vdisplay == orig_data.vdisplay)) {
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original_mode = i;
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break;
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}
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}
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for (i = 0; i < nummodes; i++) {
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if ((vidmodes[i]->hdisplay == vid.width) &&
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(vidmodes[i]->vdisplay == vid.height)) {
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found_mode = true;
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best_mode = i;
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break;
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}
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}
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if (found_mode) {
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Con_Printf ("VID: Chose video mode: %dx%d\n", vid.width, vid.height);
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XSetScreenSaver (x_disp, 0, xss_interval, xss_blanking, xss_exposures);
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XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[best_mode]);
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X11_ForceViewPort ();
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vidmode_active = true;
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} else {
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Con_Printf ("VID: Mode %dx%d can't go fullscreen.\n", vid.width, vid.height);
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vid_gamma_avail = vidmode_avail = vidmode_active = false;
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}
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}
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#endif
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}
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void
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X11_Init_Cvars (void)
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{
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vid_fullscreen = Cvar_Get ("vid_fullscreen", "0", CVAR_ROM, NULL,
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"Toggles fullscreen game mode");
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vid_system_gamma = Cvar_Get ("vid_system_gamma", "1", CVAR_ARCHIVE, NULL,
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"Use system gamma control if available");
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}
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void
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X11_CreateWindow (int width, int height)
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{
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XSetWindowAttributes attr;
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XClassHint *ClassHint;
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XSizeHints *SizeHints;
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char *resname;
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unsigned long mask;
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/* window attributes */
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attr.background_pixel = 0;
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attr.border_pixel = 0;
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attr.colormap = XCreateColormap (x_disp, x_root, x_vis, AllocNone);
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attr.event_mask = X_MASK;
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mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
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if (vidmode_active && vid_fullscreen->int_val) {
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attr.override_redirect = 1;
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mask |= CWOverrideRedirect;
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}
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x_win = XCreateWindow (x_disp, x_root, 0, 0, width, height,
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0, x_visinfo->depth, InputOutput,
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x_vis, mask, &attr);
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// Set window size hints
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SizeHints = XAllocSizeHints ();
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if (SizeHints) {
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SizeHints->flags = (PMinSize | PMaxSize);
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SizeHints->min_width = width;
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SizeHints->min_height = height;
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SizeHints->max_width = width;
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SizeHints->max_height = height;
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XSetWMNormalHints (x_disp, x_win, SizeHints);
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XFree (SizeHints);
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}
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// Set window title
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X11_SetCaption (va ("%s %s", PROGRAM, VERSION));
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// Set icon name
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XSetIconName (x_disp, x_win, PROGRAM);
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// Set window class
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ClassHint = XAllocClassHint ();
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if (ClassHint) {
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resname = strrchr (com_argv[0], '/');
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ClassHint->res_name = (resname ? resname + 1 : com_argv[0]);
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ClassHint->res_class = PACKAGE;
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XSetClassHint (x_disp, x_win, ClassHint);
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XFree (ClassHint);
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}
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// Make window respond to Delete events
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aWMDelete = XInternAtom (x_disp, "WM_DELETE_WINDOW", False);
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XSetWMProtocols (x_disp, x_win, &aWMDelete, 1);
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if (vidmode_active && vid_fullscreen->int_val) {
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XMoveWindow (x_disp, x_win, 0, 0);
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XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0,
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vid.width + 2, vid.height + 2);
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X11_ForceViewPort ();
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}
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XMapWindow (x_disp, x_win);
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if (vidmode_active && vid_fullscreen->int_val) {
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XGrabPointer (x_disp, x_win, True, 0, GrabModeAsync, GrabModeAsync, x_win, None, CurrentTime);
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}
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XRaiseWindow (x_disp, x_win);
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}
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void
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X11_RestoreVidMode (void)
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{
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XSetScreenSaver (x_disp, xss_timeout, xss_interval, xss_blanking,
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xss_exposures);
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#ifdef HAVE_VIDMODE
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if (vidmode_active) {
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X11_SetGamma (x_gamma);
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XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[original_mode]);
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XFree (vidmodes);
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}
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#endif
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}
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void
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X11_GrabKeyboard (void)
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{
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#ifdef HAVE_VIDMODE
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if (vidmode_active && vid_fullscreen->int_val) {
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XGrabKeyboard (x_disp, x_win, 1, GrabModeAsync, GrabModeAsync,
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CurrentTime);
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}
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#endif
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}
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void
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X11_SetCaption (char *text)
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{
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if (x_disp && x_win && text)
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XStoreName (x_disp, x_win, text);
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}
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void
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X11_ForceViewPort (void)
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{
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#ifdef HAVE_VIDMODE
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int x, y;
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if (vidmode_active && vid_fullscreen->int_val) {
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do {
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XF86VidModeSetViewPort (x_disp, x_screen, 0, 0);
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poll (0, 0, 50);
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XF86VidModeGetViewPort (x_disp, x_screen, &x, &y);
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} while (x || y);
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}
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#endif
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}
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double
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X11_GetGamma (void)
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{
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#ifdef HAVE_VIDMODE
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# ifdef X_XF86VidModeGetGamma
|
||
|
XF86VidModeGamma xgamma;
|
||
|
|
||
|
if (vidmode_avail && vid_system_gamma->int_val) {
|
||
|
if (XF86VidModeGetGamma (x_disp, x_screen, &xgamma)) {
|
||
|
return ((xgamma.red + xgamma.green + xgamma.blue) / 3);
|
||
|
}
|
||
|
}
|
||
|
# endif
|
||
|
#endif
|
||
|
return -1.0;
|
||
|
}
|
||
|
|
||
|
qboolean
|
||
|
X11_SetGamma (double gamma)
|
||
|
{
|
||
|
#ifdef HAVE_VIDMODE
|
||
|
# ifdef X_XF86VidModeSetGamma
|
||
|
XF86VidModeGamma xgamma;
|
||
|
|
||
|
if (vidmode_avail && vid_system_gamma->int_val) {
|
||
|
xgamma.red = xgamma.green = xgamma.blue = (float) gamma;
|
||
|
if (XF86VidModeSetGamma (x_disp, x_screen, &xgamma))
|
||
|
return true;
|
||
|
}
|
||
|
# endif
|
||
|
#endif
|
||
|
return false;
|
||
|
}
|