ref: 02611e064eceed8d8cda8cc4d6e60f8f1833ea72
dir: /u/in_sun.c/
/* 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; } }