618 lines
13 KiB
C
618 lines
13 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) 2000, 2001 Jeff Teunissen <deek@quakeforge.net>
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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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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.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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#ifdef HAVE_EXECINFO_H
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# include <execinfo.h>
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#endif
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#include <stdlib.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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#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 "QF/cvar.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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#include "context_x11.h"
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#include "dga_check.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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Time x_time;
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qboolean x_have_focus = false;
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#define X_MASK (VisibilityChangeMask | StructureNotifyMask | ExposureMask | FocusChangeMask | EnterWindowMask)
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#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
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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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static vec3_t x_gamma = {-1, -1, -1};
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static qboolean vidmode_avail = false;
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#endif
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static qboolean vidmode_active = false;
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static qboolean vid_context_created = false;
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static int window_x, window_y, window_saved;
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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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Sys_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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static void
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X11_ProcessEventProxy(XEvent *x_event)
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{
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if (x_event->type >= LASTEvent) {
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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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static void
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X11_WaitForEvent (int event)
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{
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XEvent ev;
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int type;
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while (1) {
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XMaskEvent (x_disp, StructureNotifyMask, &ev);
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type = ev.type;
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X11_ProcessEventProxy (&ev);
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if (type == event)
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break;
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}
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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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X11_ProcessEventProxy (&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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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]",
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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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// 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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X11_RestoreGamma ();
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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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static void
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X11_ForceMove (int x, int y)
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{
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int nx, ny;
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if (!vid_context_created)
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return;
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XMoveWindow (x_disp, x_win, x, y);
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XFlush(x_disp);
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X11_WaitForEvent (ConfigureNotify);
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X11_GetWindowCoords (&nx, &ny);
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nx -= x;
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ny -= y;
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if (nx == 0 || ny == 0) {
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return;
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}
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x -= nx;
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y -= ny;
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#if 0 // hopefully this isn't needed! enable if it is.
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if (x < 1 - scr_width)
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x = 0;
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if (y < 1 - scr_height)
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y = 0;
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#endif
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XMoveWindow (x_disp, x_win, x, y);
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XSync (x_disp, false);
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// this is the best we can do.
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X11_WaitForEvent (ConfigureNotify);
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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 (vidmode_active)
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return;
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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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#ifdef HAVE_VIDMODE
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{
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static int initialized = 0;
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if (!vidmode_avail)
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vidmode_avail = VID_CheckVMode (x_disp, NULL, NULL);
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if (!initialized && vidmode_avail) {
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vec3_t *temp;
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initialized = 1;
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vid_gamma_avail = true;
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temp = X11_GetGamma ();
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if (temp && temp[0] > 0) {
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x_gamma[0] = (*temp)[0];
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x_gamma[1] = (*temp)[1];
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x_gamma[2] = (*temp)[2];
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vid_gamma_avail = true;
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free (temp);
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}
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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,
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&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 == scr_width) &&
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(vidmodes[i]->vdisplay == scr_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_DPrintf ("VID: Chose video mode: %dx%d\n", scr_width,
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scr_height);
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XF86VidModeSwitchToMode (x_disp, x_screen,
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vidmodes[best_mode]);
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X11_ForceViewPort ();
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vidmode_active = true;
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X11_SetScreenSaver ();
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} else {
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Con_Printf ("VID: Mode %dx%d can't go fullscreen.\n",
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scr_width, scr_height);
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vidmode_avail = vidmode_active = false;
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}
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}
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}
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#endif
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}
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static void
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X11_UpdateFullscreen (cvar_t *fullscreen)
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{
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if (!vid_context_created)
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return;
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if (!fullscreen->int_val) {
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X11_RestoreVidMode ();
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if (window_saved) {
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X11_ForceMove (window_x, window_y);
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window_saved = 0;
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}
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IN_UpdateGrab (in_grab);
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return;
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} else {
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if (X11_GetWindowCoords (&window_x, &window_y))
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window_saved = 1;
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X11_SetVidMode (scr_width, scr_height);
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if (!vidmode_active) {
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window_saved = 0;
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return;
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}
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X11_ForceMove (0, 0);
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XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, scr_width / 2,
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scr_height / 2);
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IN_UpdateGrab (in_grab);
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// Done in X11_SetVidMode but moved the window since then
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X11_ForceViewPort ();
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}
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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_ARCHIVE,
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&X11_UpdateFullscreen,
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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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x_win = XCreateWindow (x_disp, x_root, 0, 0, width, height, 0,
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x_visinfo->depth, InputOutput, 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 = (char *)(resname ? resname + 1 : com_argv[0]);
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ClassHint->res_class = (char *)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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XMapWindow (x_disp, x_win);
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X11_WaitForEvent (MapNotify);
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vid_context_created = true;
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if (vid_fullscreen->int_val) {
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X11_UpdateFullscreen (vid_fullscreen);
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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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#ifdef HAVE_VIDMODE
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if (vidmode_active) {
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X11_RestoreScreenSaver ();
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XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[original_mode]);
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XFree (vidmodes);
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vidmode_active = false;
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}
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#endif
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}
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void
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X11_SetCaption (const 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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qboolean
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X11_GetWindowCoords (int *ax, int *ay)
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{
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#ifdef HAVE_VIDMODE
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Window theroot, scrap;
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int x, y;
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unsigned int width, height, bdwidth, depth;
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XSync (x_disp, false);
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if ((XGetGeometry (x_disp, x_win, &theroot, &x, &y, &width, &height,
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&bdwidth, &depth) == False)) {
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Con_Printf ("XGetWindowAttributes failed in X11_GetWindowCoords.\n");
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return false;
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} else {
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XTranslateCoordinates (x_disp,x_win,theroot, -bdwidth, -bdwidth,
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ax, ay, &scrap);
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Con_DPrintf ("Window coords = %dx%d (%d,%d)\n", *ax, *ay,
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width, height);
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return true;
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}
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#endif
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return false;
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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 ax, ay;
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if (!vidmode_avail || !vid_context_created)
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return;
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if (!X11_GetWindowCoords (&ax, &ay)) {
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// "icky kludge code"
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Con_Printf ("VID: Falling back on warp kludge to set viewport.\n");
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XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, scr_width, scr_height);
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XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, 0, 0);
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}
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XF86VidModeSetViewPort (x_disp, x_screen, ax, ay);
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#endif
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}
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vec3_t *
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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
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XF86VidModeGamma xgamma;
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vec3_t *temp;
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if (vid_gamma_avail && vid_system_gamma->int_val) {
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if (XF86VidModeGetGamma (x_disp, x_screen, &xgamma)) {
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if ((temp = malloc (sizeof (vec3_t)))) {
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(*temp)[0] = xgamma.red;
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(*temp)[1] = xgamma.green;
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(*temp)[2] = xgamma.blue;
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return temp;
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}
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return NULL;
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}
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}
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# endif
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|
#endif
|
|
vid_gamma_avail = false;
|
|
return NULL;
|
|
}
|
|
|
|
qboolean
|
|
X11_SetGamma (double gamma)
|
|
{
|
|
#ifdef HAVE_VIDMODE
|
|
# ifdef X_XF86VidModeSetGamma
|
|
XF86VidModeGamma xgamma;
|
|
|
|
if (vid_gamma_avail && vid_system_gamma->int_val && x_have_focus) {
|
|
xgamma.red = xgamma.green = xgamma.blue = (float) gamma;
|
|
if (XF86VidModeSetGamma (x_disp, x_screen, &xgamma))
|
|
return true;
|
|
}
|
|
# endif
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
void
|
|
X11_RestoreGamma (void)
|
|
{
|
|
#ifdef HAVE_VIDMODE
|
|
# ifdef X_XF86VidModeSetGamma
|
|
XF86VidModeGamma xgamma;
|
|
|
|
if (vid_gamma_avail && x_gamma[0] > 0) {
|
|
xgamma.red = x_gamma[0];
|
|
xgamma.green = x_gamma[1];
|
|
xgamma.blue = x_gamma[2];
|
|
XF86VidModeSetGamma (x_disp, x_screen, &xgamma);
|
|
}
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
void
|
|
X11_SetScreenSaver (void)
|
|
{
|
|
XGetScreenSaver (x_disp, &xss_timeout, &xss_interval, &xss_blanking,
|
|
&xss_exposures);
|
|
XSetScreenSaver (x_disp, 0, xss_interval, xss_blanking, xss_exposures);
|
|
}
|
|
|
|
void
|
|
X11_RestoreScreenSaver (void)
|
|
{
|
|
XSetScreenSaver (x_disp, xss_timeout, xss_interval, xss_blanking,
|
|
xss_exposures);
|
|
}
|