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quakeforge/qw/source/in_x11.c

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/*
in_x11.c
general x11 input driver
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#define _BSD
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#ifdef HAVE_DGA
# include <X11/extensions/XShm.h>
# include <X11/extensions/xf86dga.h>
#endif
#include "cl_input.h"
#include "client.h"
#include "console.h"
#include "context_x11.h"
#include "cmd.h"
#include "cvar.h"
#include "dga_check.h"
#include "host.h"
#include "input.h"
#include "joystick.h"
#include "keys.h"
#include "qargs.h"
#include "sys.h"
#include "view.h"
cvar_t *_windowed_mouse;
cvar_t *m_filter;
cvar_t *in_dga;
cvar_t *in_dga_mouseaccel;
static qboolean dga_avail;
static qboolean dga_active;
static keydest_t old_key_dest = key_none;
static qboolean mouse_avail;
static float mouse_x, mouse_y;
static float old_mouse_x, old_mouse_y;
static int p_mouse_x, p_mouse_y;
#define KEY_MASK (KeyPressMask | KeyReleaseMask)
#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
#define INPUT_MASK (KEY_MASK | MOUSE_MASK)
static int
XLateKey (XKeyEvent * ev, qboolean modified)
{
char tmp[2];
int key = 0;
KeySym keysym;
if (!modified) {
keysym = XLookupKeysym (ev, 0);
} else {
XLookupString (ev, tmp, 1, &keysym, NULL);
}
switch (keysym) {
case XK_KP_Page_Up:
key = KP_PGUP;
break;
case XK_Page_Up:
key = K_PGUP;
break;
case XK_KP_Page_Down:
key = KP_PGDN;
break;
case XK_Page_Down:
key = K_PGDN;
break;
case XK_KP_Home:
key = KP_HOME;
break;
case XK_Home:
key = K_HOME;
break;
case XK_KP_End:
key = KP_END;
break;
case XK_End:
key = K_END;
break;
case XK_KP_Left:
key = KP_LEFTARROW;
break;
case XK_Left:
key = K_LEFTARROW;
break;
case XK_KP_Right:
key = KP_RIGHTARROW;
break;
case XK_Right:
key = K_RIGHTARROW;
break;
case XK_KP_Down:
key = KP_DOWNARROW;
break;
case XK_Down:
key = K_DOWNARROW;
break;
case XK_KP_Up:
key = KP_UPARROW;
break;
case XK_Up:
key = K_UPARROW;
break;
case XK_Escape:
key = K_ESCAPE;
break;
case XK_KP_Enter:
key = KP_ENTER;
break;
case XK_Return:
key = K_ENTER;
break;
case XK_Tab:
key = K_TAB;
break;
case XK_F1:
key = K_F1;
break;
case XK_F2:
key = K_F2;
break;
case XK_F3:
key = K_F3;
break;
case XK_F4:
key = K_F4;
break;
case XK_F5:
key = K_F5;
break;
case XK_F6:
key = K_F6;
break;
case XK_F7:
key = K_F7;
break;
case XK_F8:
key = K_F8;
break;
case XK_F9:
key = K_F9;
break;
case XK_F10:
key = K_F10;
break;
case XK_F11:
key = K_F11;
break;
case XK_F12:
key = K_F12;
break;
case XK_BackSpace:
key = K_BACKSPACE;
break;
case XK_KP_Delete:
key = KP_DEL;
break;
case XK_Delete:
key = K_DEL;
break;
case XK_Pause:
key = K_PAUSE;
break;
case XK_Shift_L:
case XK_Shift_R:
key = K_SHIFT;
break;
case XK_Execute:
case XK_Control_L:
case XK_Control_R:
key = K_CTRL;
break;
case XK_Mode_switch:
case XK_Alt_L:
case XK_Meta_L:
case XK_Alt_R:
case XK_Meta_R:
key = K_ALT;
break;
case XK_Caps_Lock:
key = K_CAPSLOCK;
break;
case XK_KP_Begin:
key = KP_5;
break;
case XK_Insert:
key = K_INS;
break;
case XK_KP_Insert:
key = KP_INS;
break;
case XK_KP_Multiply:
key = KP_MULTIPLY;
break;
case XK_KP_Add:
key = KP_PLUS;
break;
case XK_KP_Subtract:
key = KP_MINUS;
break;
case XK_KP_Divide:
key = KP_DIVIDE;
break;
/* For Sun keyboards */
case XK_F27:
key = K_HOME;
break;
case XK_F29:
key = K_PGUP;
break;
case XK_F33:
key = K_END;
break;
case XK_F35:
key = K_PGDN;
break;
default:
if (keysym < 128) {
/* ASCII keys */
key = keysym;
if (!modified && ((key >= 'A') && (key <= 'Z'))) {
key = key + ('a' - 'A');
}
}
break;
}
return key;
}
static void
event_key (XEvent * event)
{
if (old_key_dest != key_dest) {
old_key_dest = key_dest;
if (key_dest == key_game) {
XAutoRepeatOff (x_disp);
} else {
XAutoRepeatOn (x_disp);
}
}
Key_Event (XLateKey (&event->xkey, 0), XLateKey (&event->xkey, 1),
event->type == KeyPress);
}
static void
event_button (XEvent * event)
{
int but;
but = event->xbutton.button;
if (but == 2)
but = 3;
else if (but == 3)
but = 2;
switch (but) {
case 1:
case 2:
case 3:
Key_Event (K_MOUSE1 + but - 1, 0, event->type == ButtonPress);
break;
case 4:
Key_Event (K_MWHEELUP, 0, event->type == ButtonPress);
break;
case 5:
Key_Event (K_MWHEELDOWN, 0, event->type == ButtonPress);
break;
}
}
static void
center_pointer (void)
{
XEvent event;
event.type = MotionNotify;
event.xmotion.display = x_disp;
event.xmotion.window = x_win;
event.xmotion.x = vid.width / 2;
event.xmotion.y = vid.height / 2;
XSendEvent (x_disp, x_win, False, PointerMotionMask, &event);
XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0,
vid.width / 2, vid.height / 2);
}
static void
event_motion (XEvent * event)
{
if (dga_active) {
mouse_x += event->xmotion.x_root * in_dga_mouseaccel->value;
mouse_y += event->xmotion.y_root * in_dga_mouseaccel->value;
} else {
if (vid_fullscreen->int_val || _windowed_mouse->int_val) {
if (!event->xmotion.send_event) {
mouse_x += (event->xmotion.x - p_mouse_x);
mouse_y += (event->xmotion.y - p_mouse_y);
if (abs (vid.width / 2 - event->xmotion.x) > vid.width / 4
|| abs (vid.height / 2 - event->xmotion.y) > vid.height / 4) {
center_pointer ();
}
}
} else {
mouse_x += (event->xmotion.x - p_mouse_x);
mouse_y += (event->xmotion.y - p_mouse_y);
}
p_mouse_x = event->xmotion.x;
p_mouse_y = event->xmotion.y;
}
}
void
IN_Commands (void)
{
static int old_windowed_mouse;
static int old_in_dga;
JOY_Command ();
if ((old_windowed_mouse != _windowed_mouse->int_val)
|| (old_in_dga != in_dga->int_val)) {
old_windowed_mouse = _windowed_mouse->int_val;
old_in_dga = in_dga->int_val;
if (_windowed_mouse->int_val) { // grab the pointer
XGrabPointer (x_disp, x_win, True, MOUSE_MASK, GrabModeAsync,
GrabModeAsync, x_win, None, CurrentTime);
#ifdef HAVE_DGA
if (dga_avail && in_dga->int_val && !dga_active) {
XF86DGADirectVideo (x_disp, DefaultScreen (x_disp),
XF86DGADirectMouse);
dga_active = true;
}
#endif
} else { // ungrab the pointer
#ifdef HAVE_DGA
if (dga_avail && in_dga->int_val && dga_active) {
XF86DGADirectVideo (x_disp, DefaultScreen (x_disp), 0);
dga_active = false;
}
#endif
XUngrabPointer (x_disp, CurrentTime);
}
}
}
void
IN_SendKeyEvents (void)
{
/* Get events from X server. */
x11_process_events ();
}
void
IN_Move (usercmd_t *cmd)
{
JOY_Move (cmd);
if (!mouse_avail)
return;
if (m_filter->int_val) {
mouse_x = (mouse_x + old_mouse_x) * 0.5;
mouse_y = (mouse_y + old_mouse_y) * 0.5;
old_mouse_x = mouse_x;
old_mouse_y = mouse_y;
}
mouse_x *= sensitivity->value;
mouse_y *= sensitivity->value;
if ((in_strafe.state & 1) || (lookstrafe->int_val && freelook))
cmd->sidemove += m_side->value * mouse_x;
else
cl.viewangles[YAW] -= m_yaw->value * mouse_x;
if (freelook)
V_StopPitchDrift ();
if (freelook && !(in_strafe.state & 1)) {
cl.viewangles[PITCH] += m_pitch->value * mouse_y;
cl.viewangles[PITCH] = bound (-70, cl.viewangles[PITCH], 80);
} else {
if ((in_strafe.state & 1) && noclip_anglehack)
cmd->upmove -= m_forward->value * mouse_y;
else
cmd->forwardmove -= m_forward->value * mouse_y;
}
mouse_x = mouse_y = 0.0;
}
/*
Called at shutdown
*/
void
IN_Shutdown (void)
{
JOY_Shutdown ();
Con_Printf ("IN_Shutdown\n");
mouse_avail = 0;
if (x_disp) {
XAutoRepeatOn (x_disp);
#ifdef HAVE_DGA
if (dga_avail)
XF86DGADirectVideo (x_disp, DefaultScreen (x_disp), 0);
#endif
}
x11_close_display ();
}
void
Force_CenterView_f (void)
{
cl.viewangles[PITCH] = 0;
}
void
IN_Init (void)
{
// open the display
if (!x_disp)
Sys_Error ("IN: No display!!\n");
if (!x_win)
Sys_Error ("IN: No window!!\n");
x11_open_display (); // call to increment the reference
// counter
{
int attribmask = CWEventMask;
XWindowAttributes attribs_1;
XSetWindowAttributes attribs_2;
XGetWindowAttributes (x_disp, x_win, &attribs_1);
attribs_2.event_mask = attribs_1.your_event_mask | INPUT_MASK;
XChangeWindowAttributes (x_disp, x_win, attribmask, &attribs_2);
}
JOY_Init ();
XAutoRepeatOff (x_disp);
if (COM_CheckParm ("-nomouse"))
return;
dga_avail = VID_CheckDGA (x_disp, NULL, NULL, NULL);
if (vid_fullscreen->int_val) {
Cvar_Set (_windowed_mouse, "1");
_windowed_mouse->flags |= CVAR_ROM;
}
mouse_x = mouse_y = 0.0;
mouse_avail = 1;
x11_add_event (KeyPress, &event_key);
x11_add_event (KeyRelease, &event_key);
x11_add_event (ButtonPress, &event_button);
x11_add_event (ButtonRelease, &event_button);
x11_add_event (MotionNotify, &event_motion);
Cmd_AddCommand ("force_centerview", Force_CenterView_f, "Force view of player to center");
}
void
IN_Init_Cvars (void)
{
JOY_Init_Cvars ();
_windowed_mouse = Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE, "With this set to 1, quake will grab the mouse from X");
m_filter = Cvar_Get ("m_filter", "0", CVAR_ARCHIVE, "Toggle mouse input filtering.");
in_dga = Cvar_Get ("in_dga", "1", CVAR_ARCHIVE, "DGA Input support");
in_dga_mouseaccel = Cvar_Get ("in_dga_mouseaccel", "1", CVAR_ARCHIVE,
"DGA Mouse accelleration multiplier");
}
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