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- /*
- Copyright (C) 1996-1997 Id Software, Inc.
-
- 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 the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
- // in_sun.c -- SUN/X mouse input handler
-
- #include <sys/time.h>
- #include <sys/types.h>
- #include <unistd.h>
- #include <signal.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <sys/ipc.h>
- #include <sys/shm.h>
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/Xatom.h>
- #include <X11/keysym.h>
-
- #include "quakedef.h"
-
-
- //
- // typedefs and defines
- //
-
- #define MOUSE_SCALE 4
-
- //
- // externs
- //
-
- extern Display *x_disp;
- extern int x_screen, x_screen_width, x_screen_height;
- extern int x_center_height, x_center_width;
- extern int x_std_event_mask;
- extern Window x_win, x_root_win;
- extern qboolean x_fullscreen;
- extern qboolean x_focus;
- extern int global_dx, global_dy;
- //
- // globals
- //
-
- cvar_t _windowed_mouse = {"_windowed_mouse","1", true};
- int x_root, y_root;
- int x_root_old, y_root_old;
- //
- // locals
- //
-
- static int x_mouse_num, x_mouse_denom, x_mouse_thresh;
-
-
- static qboolean x_grabbed = false;
-
- //
- // IN_CenterMouse - center the mouse in the screen
- //
-
- void IN_CenterMouse( void )
- {
- CheckMouseState();
-
- if (!x_grabbed)
- return;
-
- XSelectInput( x_disp, x_win, x_std_event_mask & ~PointerMotionMask );
- XWarpPointer( x_disp, None, x_root_win, 0, 0, 0, 0, x_center_width,
- x_center_height );
- XSelectInput( x_disp, x_win, x_std_event_mask );
- }
-
- //
- // Check to see if we have grabbed the mouse or not and deal with it
- // appropriately
- //
- static void CheckMouseState(void)
- {
- if (x_focus && _windowed_mouse.value && !x_grabbed) {
- x_grabbed = true;
- printf("fooling with mouse!\n");
- if (XGetPointerControl( x_disp, &x_mouse_num, &x_mouse_denom, &x_mouse_thresh ))
- printf( "XGetPointerControl failed!\n" );
- //printf( "mouse %d/%d thresh %d\n", x_mouse_num, x_mouse_denom, x_mouse_thresh );
-
- // make input rawer
- XAutoRepeatOff(x_disp);
- XGrabKeyboard(x_disp, x_win, True, GrabModeAsync, GrabModeAsync, CurrentTime);
- XGrabPointer(x_disp, x_win, True,
- PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
- GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
-
- // if (XChangePointerControl( x_disp, True, True, 1, MOUSE_SCALE, x_mouse_thresh ))
- // printf( "XChangePointerControl failed!\n" );
-
- IN_CenterMouse();
-
- // safe initial values
- x_root = x_root_old = vid.width >> 1;
- y_root = y_root_old = vid.height >> 1;
- } else if (x_grabbed && (!_windowed_mouse.value || !x_focus)) {
- printf("fooling with mouse!\n");
- x_grabbed = false;
- // undo mouse warp
- if (XChangePointerControl( x_disp, True, True, x_mouse_num, x_mouse_denom, x_mouse_thresh ))
- printf( "XChangePointerControl failed!\n" );
-
- XUngrabPointer( x_disp, CurrentTime );
- XUngrabKeyboard( x_disp, CurrentTime );
- XAutoRepeatOn( x_disp );
- }
- }
-
-
- //
- // IN_Init - setup mouse input
- //
-
- void IN_Init (void)
- {
- if (!x_disp) Sys_Error( "X display not open!\n" );
-
- Cvar_RegisterVariable (&_windowed_mouse);
-
- // we really really want to clean these up...
- atexit( IN_Shutdown );
- }
-
- //
- // IN_Shutdown - clean up mouse settings (must be done from signal handler too!)
- //
-
- void IN_Shutdown (void)
- {
- if (!x_disp) return;
-
- // undo mouse warp
- if (XChangePointerControl( x_disp, True, True, x_mouse_num, x_mouse_denom, x_mouse_thresh ))
- printf( "XChangePointerControl failed!\n" );
-
- XUngrabPointer( x_disp, CurrentTime );
- XUngrabKeyboard( x_disp, CurrentTime );
- XAutoRepeatOn( x_disp );
- }
-
- //
- // IN_Commands - process buttons
- //
-
- void IN_Commands (void)
- {
- // done in X event handler
- }
-
- //
- // IN_Move - process mouse moves
- //
-
- void
- IN_Move (usercmd_t *cmd)
- {
- static int last_dx, last_dy;
- static long long last_movement;
- long long now, gethrtime();
-
- int dx, dy;
-
- CheckMouseState();
-
-
- if (!x_grabbed)
- return; // no mouse movement
-
-
- now = gethrtime();
-
- dx = global_dx;
- global_dx = 0;
-
- dy = global_dy;
- global_dy = 0;
-
- // printf("GOT: dx %d dy %d\n", dx, dy);
-
- dx *= sensitivity.value;
- dy *= sensitivity.value;
-
- //
- // implement low pass filter to smooth motion a bit
- //
- if (now - last_movement > 100000000) {
- dx = .6 * dx;
- dy = .6 * dy;
- }
- last_movement = now;
-
- dx = .6 * dx + .4 * last_dx;
- dy = .6 * dy + .4 * last_dy;
-
-
- last_dx = dx;
- last_dy = dy;
-
- if (!dx && !dy) {
- if (in_mlook.state & 1)
- V_StopPitchDrift ();
- return;
- }
-
- // add mouse X/Y movement to cmd
- if ((in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1)))
- cmd->sidemove += m_side.value * dx;
- else
- cl.viewangles[YAW] -= m_yaw.value * dx;
-
- if (in_mlook.state & 1)
- V_StopPitchDrift ();
-
- if ((in_mlook.state & 1) && !(in_strafe.state & 1)) {
- cl.viewangles[PITCH] += m_pitch.value * dy;
- if (cl.viewangles[PITCH] > 80) cl.viewangles[PITCH] = 80;
- if (cl.viewangles[PITCH] < -70) cl.viewangles[PITCH] = -70;
- }
- else {
- if ((in_strafe.state & 1) && noclip_anglehack) cmd->upmove -= m_forward.value * dy;
- else cmd->forwardmove -= m_forward.value * dy;
- }
- }
-