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quakeforge/libs/video/targets/in_x11.c
Bill Currie b02e29ea89 [x11] Clear up some signed/unsigned ambiguity 
I don't remember what gcc does with unsigned-int, but obviously clang
produces another unsigned, which is most definitely not wanted.
2022-03-31 00:34:40 +09:00

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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
*/
#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 <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/XF86keysym.h>
#include <X11/XKBlib.h>
#include <X11/Sunkeysym.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#ifdef HAVE_DGA
# ifdef DGA_OLD_HEADERS
# include <X11/extensions/xf86dga.h>
# else
# include <X11/extensions/Xxf86dga.h>
# endif
#endif
#ifdef HAVE_XI2
# include <X11/extensions/XInput2.h>
#endif
#ifdef HAVE_XFIXES
# include <X11/extensions/Xfixes.h>
#endif
#include "QF/cdaudio.h"
#include "QF/cmd.h"
#include "QF/cvar.h"
#include "QF/input.h"
#include "QF/joystick.h"
#include "QF/keys.h"
#include "QF/mathlib.h"
#include "QF/qargs.h"
#include "QF/sound.h"
#include "QF/sys.h"
#include "QF/input/event.h"
#include "compat.h"
#include "context_x11.h"
#include "dga_check.h"
#include "in_x11.h"
#include "qfselect.h"
#include "vid_internal.h"
typedef struct x11_device_s {
const char *name;
int num_axes;
int num_buttons;
in_axisinfo_t *axes;
in_buttoninfo_t *buttons;
void *event_data;
int devid;
} x11_device_t;
#define X11_MOUSE_BUTTONS 32
#define X11_MOUSE_AXES 2
// The X11 protocol supports only 256 keys
static in_buttoninfo_t x11_key_buttons[256];
// X11 mice have only two axes (FIXME NOT always true (XInput says otherwise!)
static in_axisinfo_t x11_mouse_axes[X11_MOUSE_AXES];
// FIXME assume up to 32 mouse buttons (see X11_MOUSE_BUTTONS)
static in_buttoninfo_t x11_mouse_buttons[X11_MOUSE_BUTTONS];
static const char *x11_mouse_axis_names[] = {"M_X", "M_Y"};
static const char *x11_mouse_button_names[] = {
"M_BUTTON1", "M_BUTTON2", "M_BUTTON3", "M_WHEEL_UP",
"M_WHEEL_DOWN", "M_BUTTON6", "M_BUTTON7", "M_BUTTON8",
"M_BUTTON9", "M_BUTTON10", "M_BUTTON11", "M_BUTTON12",
"M_BUTTON13", "M_BUTTON14", "M_BUTTON15", "M_BUTTON16",
"M_BUTTON17", "M_BUTTON18", "M_BUTTON19", "M_BUTTON20",
"M_BUTTON21", "M_BUTTON22", "M_BUTTON23", "M_BUTTON24",
"M_BUTTON25", "M_BUTTON26", "M_BUTTON27", "M_BUTTON28",
"M_BUTTON29", "M_BUTTON30", "M_BUTTON31", "M_BUTTON32",
};
#define SIZE(x) (sizeof (x) / sizeof (x[0]))
static x11_device_t x11_keyboard_device = {
"core:keyboard",
0, SIZE (x11_key_buttons),
0, x11_key_buttons,
};
static x11_device_t x11_mouse_device = {
"core:mouse",
SIZE (x11_mouse_axes), SIZE (x11_mouse_buttons),
x11_mouse_axes, x11_mouse_buttons,
};
cvar_t *in_auto_focus;
cvar_t *in_snd_block;
cvar_t *in_dga;
cvar_t *in_mouse_accel;
static qboolean dga_avail;
static qboolean dga_active;
static IE_mouse_event_t x11_mouse;
static IE_key_event_t x11_key;
static int input_grabbed = 0;
#ifdef HAVE_XI2
static int xi_opcode;
#endif
#ifdef HAVE_XFIXES
static int xf_opcode;
static PointerBarrier x11_left_barrier;
static PointerBarrier x11_right_barrier;
static PointerBarrier x11_top_barrier;
static PointerBarrier x11_bottom_barrier;
#endif
static IE_app_window_event_t x11_aw;
static int x11_have_xi;
static int x11_fd;
static int x11_driver_handle = -1;
static int x11_event_handler_id;
static qboolean x11_have_pointer;
static void
dga_on (void)
{
#ifdef HAVE_DGA
if (dga_avail && !dga_active) {
int ret;
ret = XF86DGADirectVideo (x_disp, DefaultScreen (x_disp),
XF86DGADirectMouse);
Sys_MaskPrintf (SYS_vid, "XF86DGADirectVideo returned %d\n", ret);
if (ret)
dga_active = true;
}
#endif
}
static void
dga_off (void)
{
#ifdef HAVE_DGA
if (dga_avail && dga_active) {
int ret;
ret = XF86DGADirectVideo (x_disp, DefaultScreen (x_disp), 0);
Sys_MaskPrintf (SYS_vid, "XF86DGADirectVideo returned %d\n", ret);
if (ret)
dga_active = false;
}
#endif
}
static void
in_dga_f (cvar_t *var)
{
if (var->int_val && input_grabbed) {
Sys_MaskPrintf (SYS_vid, "VID: in_dga_f on\n");
dga_on ();
} else {
Sys_MaskPrintf (SYS_vid, "VID: in_dga_f off\n");
dga_off ();
}
}
static void
in_mouse_accel_f (cvar_t *var)
{
if (var->int_val) {
X11_RestoreMouseAcceleration ();
} else {
X11_SaveMouseAcceleration ();
X11_RemoveMouseAcceleration ();
}
}
static void
in_paste_buffer_f (void)
{
Atom property;
if (XGetSelectionOwner (x_disp, XA_PRIMARY) == None)
return;
property = XInternAtom (x_disp, "GETCLIPBOARDDATA_PROP", False);
XConvertSelection (x_disp, XA_PRIMARY, XA_STRING, property, x_win, x_time);
XFlush (x_disp);
}
static void
enter_notify (XEvent *event)
{
x11_have_pointer = true;
x_time = event->xcrossing.time;
x11_mouse.x = event->xmotion.x;
x11_mouse.y = event->xmotion.y;
if (!x_have_focus && (!in_auto_focus || in_auto_focus->int_val)) {
XSetInputFocus (x_disp, x_win, RevertToPointerRoot, CurrentTime);
}
}
static void
leave_notify (XEvent *event)
{
x11_have_pointer = false;
}
static void
XLateKey (XKeyEvent *ev, int *k, int *u)
{
char buffer[4];
int unicode;
int key = 0;
KeySym keysym, shifted_keysym;
XComposeStatus compose;
keysym = XLookupKeysym (ev, 0);
XLookupString (ev, buffer, sizeof(buffer), &shifted_keysym, &compose);
unicode = (byte) buffer[0];
switch (keysym) {
case XK_KP_Page_Up:
key = QFK_KP9;
break;
case XK_Page_Up:
key = QFK_PAGEUP;
break;
case XK_KP_Page_Down:
key = QFK_KP3;
break;
case XK_Page_Down:
key = QFK_PAGEDOWN;
break;
case XK_KP_Home:
key = QFK_KP7;
break;
case XK_Home:
key = QFK_HOME;
break;
case XK_KP_End:
key = QFK_KP1;
break;
case XK_End:
key = QFK_END;
break;
case XK_KP_Left:
key = QFK_KP4;
break;
case XK_Left:
key = QFK_LEFT;
break;
case XK_KP_Right:
key = QFK_KP6;
break;
case XK_Right:
key = QFK_RIGHT;
break;
case XK_KP_Down:
key = QFK_KP2;
break;
case XK_Down:
key = QFK_DOWN;
break;
case XK_KP_Up:
key = QFK_KP8;
break;
case XK_Up:
key = QFK_UP;
break;
case XK_Escape:
key = QFK_ESCAPE;
break;
case XK_KP_Enter:
key = QFK_KP_ENTER;
break;
case XK_Return:
key = QFK_RETURN;
break;
case XK_Tab:
key = QFK_TAB;
break;
case XK_F1:
key = QFK_F1;
break;
case XK_F2:
key = QFK_F2;
break;
case XK_F3:
key = QFK_F3;
break;
case XK_F4:
key = QFK_F4;
break;
case XK_F5:
key = QFK_F5;
break;
case XK_F6:
key = QFK_F6;
break;
case XK_F7:
key = QFK_F7;
break;
case XK_F8:
key = QFK_F8;
break;
case XK_F9:
key = QFK_F9;
break;
case XK_F10:
key = QFK_F10;
break;
case XK_F11:
key = QFK_F11;
break;
case XK_F12:
key = QFK_F12;
break;
case XK_BackSpace:
key = QFK_BACKSPACE;
break;
case XK_KP_Delete:
key = QFK_KP_PERIOD;
break;
case XK_Delete:
key = QFK_DELETE;
break;
case XK_Pause:
key = QFK_PAUSE;
break;
case XK_Shift_L:
key = QFK_LSHIFT;
break;
case XK_Shift_R:
key = QFK_RSHIFT;
break;
case XK_Execute:
case XK_Control_L:
key = QFK_LCTRL;
break;
case XK_Control_R:
key = QFK_RCTRL;
break;
case XK_Mode_switch:
case XK_Alt_L:
key = QFK_LALT;
break;
case XK_Meta_L:
key = QFK_LMETA;
break;
case XK_Alt_R:
key = QFK_RALT;
break;
case XK_Meta_R:
key = QFK_RMETA;
break;
case XK_Super_L:
key = QFK_LSUPER;
break;
case XK_Super_R:
key = QFK_RSUPER;
break;
case XK_Multi_key:
key = QFK_COMPOSE;
break;
case XK_Menu:
key = QFK_MENU;
break;
case XK_Caps_Lock:
key = QFK_CAPSLOCK;
break;
case XK_KP_Begin:
key = QFK_KP5;
break;
case XK_Print:
key = QFK_PRINT;
break;
case XK_Scroll_Lock:
key = QFK_SCROLLOCK;
break;
case XK_Num_Lock:
key = QFK_NUMLOCK;
break;
case XK_Insert:
key = QFK_INSERT;
break;
case XK_KP_Insert:
key = QFK_KP0;
break;
case XK_KP_Multiply:
key = QFK_KP_MULTIPLY;
break;
case XK_KP_Add:
key = QFK_KP_PLUS;
break;
case XK_KP_Subtract:
key = QFK_KP_MINUS;
break;
case XK_KP_Divide:
key = QFK_KP_DIVIDE;
break;
// For Sun keyboards
case XK_F27:
key = QFK_HOME;
break;
case XK_F29:
key = QFK_PAGEUP;
break;
case XK_F33:
key = QFK_END;
break;
case XK_F35:
key = QFK_PAGEDOWN;
break;
// Some high ASCII symbols, for azerty keymaps
case XK_twosuperior:
key = QFK_WORLD_18;
break;
case XK_eacute:
key = QFK_WORLD_63;
break;
case XK_section:
key = QFK_WORLD_7;
break;
case XK_egrave:
key = QFK_WORLD_72;
break;
case XK_ccedilla:
key = QFK_WORLD_71;
break;
case XK_agrave:
key = QFK_WORLD_64;
break;
case XK_Kanji:
key = QFK_KANJI;
break;
case XK_Muhenkan:
key = QFK_MUHENKAN;
break;
case XK_Henkan:
key = QFK_HENKAN;
break;
case XK_Romaji:
key = QFK_ROMAJI;
break;
case XK_Hiragana:
key = QFK_HIRAGANA;
break;
case XK_Katakana:
key = QFK_KATAKANA;
break;
case XK_Hiragana_Katakana:
key = QFK_HIRAGANA_KATAKANA;
break;
case XK_Zenkaku:
key = QFK_ZENKAKU;
break;
case XK_Hankaku:
key = QFK_HANKAKU;
break;
case XK_Zenkaku_Hankaku:
key = QFK_ZENKAKU_HANKAKU;
break;
case XK_Touroku:
key = QFK_TOUROKU;
break;
case XK_Massyo:
key = QFK_MASSYO;
break;
case XK_Kana_Lock:
key = QFK_KANA_LOCK;
break;
case XK_Kana_Shift:
key = QFK_KANA_SHIFT;
break;
case XK_Eisu_Shift:
key = QFK_EISU_SHIFT;
break;
case XK_Eisu_toggle:
key = QFK_EISU_TOGGLE;
break;
case XK_Kanji_Bangou:
key = QFK_KANJI_BANGOU;
break;
case XK_Zen_Koho:
key = QFK_ZEN_KOHO;
break;
case XK_Mae_Koho:
key = QFK_MAE_KOHO;
break;
case XF86XK_HomePage:
key = QFK_HOMEPAGE;
break;
case XF86XK_Search:
key = QFK_SEARCH;
break;
case XF86XK_Mail:
key = QFK_MAIL;
break;
case XF86XK_Favorites:
key = QFK_FAVORITES;
break;
case XF86XK_AudioMute:
key = QFK_AUDIOMUTE;
break;
case XF86XK_AudioLowerVolume:
key = QFK_AUDIOLOWERVOLUME;
break;
case XF86XK_AudioRaiseVolume:
key = QFK_AUDIORAISEVOLUME;
break;
case XF86XK_AudioPlay:
key = QFK_AUDIOPLAY;
break;
case XF86XK_Calculator:
key = QFK_CALCULATOR;
break;
case XK_Help:
key = QFK_HELP;
break;
case XK_Undo:
key = QFK_UNDO;
break;
case XK_Redo:
key = QFK_REDO;
break;
case XF86XK_New:
key = QFK_NEW;
break;
case XF86XK_Reload: // eh? it's open (hiraku) on my kb
key = QFK_RELOAD;
break;
case SunXK_Open:
//FALL THROUGH
case XF86XK_Open:
key = QFK_OPEN;
break;
case XF86XK_Close:
key = QFK_CLOSE;
break;
case XF86XK_Reply:
key = QFK_REPLY;
break;
case XF86XK_MailForward:
key = QFK_MAILFORWARD;
break;
case XF86XK_Send:
key = QFK_SEND;
break;
case XF86XK_Save:
key = QFK_SAVE;
break;
case XK_KP_Equal:
key = QFK_KP_EQUALS;
break;
case XK_parenleft:
key = QFK_LEFTPAREN;
break;
case XK_parenright:
key = QFK_RIGHTPAREN;
break;
case XF86XK_Back:
key = QFK_BACK;
break;
case XF86XK_Forward:
key = QFK_FORWARD;
break;
default:
if (keysym < 128) { // ASCII keys
key = keysym;
if ((key >= 'A') && (key <= 'Z')) {
key = key + ('a' - 'A');
}
}
break;
}
*k = key;
*u = unicode;
}
static void
in_x11_send_focus_event (int gain)
{
IE_event_t event = {
.type = gain ? ie_app_gain_focus : ie_app_lose_focus,
.when = Sys_LongTime (),
};
IE_Send_Event (&event);
}
static void
event_focusout (XEvent *event)
{
if (x_have_focus) {
x_have_focus = false;
in_x11_send_focus_event (0);
if (in_snd_block->int_val) {
S_BlockSound ();
CDAudio_Pause ();
}
X11_RestoreGamma ();
}
}
static void
event_focusin (XEvent *event)
{
in_x11_send_focus_event (1);
x_have_focus = true;
if (in_snd_block->int_val) {
S_UnblockSound ();
CDAudio_Resume ();
}
VID_UpdateGamma (vid_gamma);
}
static void
center_pointer (void)
{
XEvent event = {};
event.type = MotionNotify;
event.xmotion.display = x_disp;
event.xmotion.window = x_win;
event.xmotion.x = viddef.width / 2;
event.xmotion.y = viddef.height / 2;
XSendEvent (x_disp, x_win, False, PointerMotionMask, &event);
XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0,
viddef.width / 2, viddef.height / 2);
}
static void
in_x11_send_axis_event (int devid, in_axisinfo_t *axis)
{
IE_event_t event = {
.type = ie_axis,
.when = Sys_LongTime (),
.axis = {
.data = x11_mouse_device.event_data,
.devid = devid,
.axis = axis->axis,
.value = axis->value,
},
};
IE_Send_Event (&event);
}
static int
in_x11_send_mouse_event (IE_mouse_type type)
{
IE_event_t event = {
.type = ie_mouse,
.when = Sys_LongTime (),
.mouse = x11_mouse,
};
event.mouse.type = type;
return IE_Send_Event (&event);
}
static int
in_x11_send_key_event (void)
{
IE_event_t event = {
.type = ie_key,
.when = Sys_LongTime (),
.key = x11_key,
};
return IE_Send_Event (&event);
}
static void
in_x11_send_button_event (int devid, in_buttoninfo_t *button, void *event_data)
{
IE_event_t event = {
.type = ie_button,
.when = Sys_LongTime (),
.button = {
.data = event_data,
.devid = devid,
.button = button->button,
.state = button->state,
},
};
IE_Send_Event (&event);
}
static void
selection_notify (XEvent *event)
{
unsigned char *data, *p;
unsigned long num_bytes;
unsigned long tmp, len;
int format;
Atom type, property;
x_time = event->xselection.time;
if ((property = event->xselection.property) == None)
return;
XGetWindowProperty (x_disp, x_win, property, 0, 0, False, AnyPropertyType,
&type, &format, &len, &num_bytes, &data);
if (num_bytes <= 0)
return;
if (XGetWindowProperty (x_disp, x_win, property, 0, num_bytes, True,
AnyPropertyType, &type, &format, &len, &tmp, &data)
!= Success) {
XFree (data); // FIXME is this correct for this instance?
return;
}
//FIXME send paste event instead of key presses?
x11_key.code = 0;
for (p = data; num_bytes && *p; p++, num_bytes--) {
x11_key.unicode = *p;
in_x11_send_key_event ();
}
XFree (data);
}
static void
event_motion (XEvent *event)
{
x_time = event->xmotion.time;
if (x_time <= x_mouse_time) {
x11_mouse.x = event->xmotion.x;
x11_mouse.y = event->xmotion.y;
return;
}
if (dga_active) {
x11_mouse_axes[0].value = event->xmotion.x_root;
x11_mouse_axes[1].value = event->xmotion.y_root;
} else {
if (vid_fullscreen->int_val || input_grabbed) {
if (!event->xmotion.send_event) {
int center_x = viddef.width / 2;
int center_y = viddef.height / 2;
unsigned dist_x = abs (center_x / 2 - event->xmotion.x);
unsigned dist_y = abs (center_y / 2 - event->xmotion.y);
x11_mouse_axes[0].value = event->xmotion.x - x11_mouse.x;
x11_mouse_axes[1].value = event->xmotion.y - x11_mouse.y;
if (dist_x > viddef.width / 4 || dist_y > viddef.height / 4) {
center_pointer ();
}
}
} else {
x11_mouse_axes[0].value = event->xmotion.x - x11_mouse.x;
x11_mouse_axes[1].value = event->xmotion.y - x11_mouse.y;
}
}
x11_mouse.shift = event->xmotion.state & 0xff;
x11_mouse.x = event->xmotion.x;
x11_mouse.y = event->xmotion.y;
if (!in_x11_send_mouse_event (ie_mousemove)) {
in_x11_send_axis_event (x11_mouse_device.devid, &x11_mouse_axes[0]);
in_x11_send_axis_event (x11_mouse_device.devid, &x11_mouse_axes[1]);
}
}
static void
event_button (XEvent *event)
{
unsigned but;
x_time = event->xbutton.time;
// x11 buttons are 1-based
but = event->xbutton.button - 1;
if (but > X11_MOUSE_BUTTONS) {
return;
}
int press = event->type == ButtonPress;
x11_mouse_buttons[but].state = press;
x11_mouse.shift = event->xmotion.state & 0xff;
x11_mouse.x = event->xmotion.x;
x11_mouse.y = event->xmotion.y;
if (press) {
x11_mouse.buttons |= 1 << but;
} else {
x11_mouse.buttons &= ~(1 << but);
}
if (!in_x11_send_mouse_event (press ? ie_mousedown : ie_mouseup)) {
in_x11_send_button_event (x11_mouse_device.devid,
&x11_mouse_buttons[but],
x11_mouse_device.event_data);
}
}
static unsigned
in_x11_process_key_button (unsigned keycode, int press)
{
// X11 protocol supports only 256 keys. The key codes are the AT scan codes
// offset by 8 (so Esc is 9 instead of 1).
unsigned key = (keycode - 8) & 0xff;
x11_key_buttons[key].state = press;
return key;
}
static void
event_key (XEvent *event)
{
unsigned key = 0;
x_time = event->xkey.time;
if (!x11_have_xi) {
key = in_x11_process_key_button (event->xkey.keycode,
event->type == KeyPress);
}
x11_key.shift = event->xmotion.state & 0xff;
XLateKey (&event->xkey, &x11_key.code, &x11_key.unicode);
if (!(event->type == KeyPress && in_x11_send_key_event ())
&& !x11_have_xi) {
in_x11_send_button_event (x11_keyboard_device.devid,
&x11_key_buttons[key],
x11_keyboard_device.event_data);
}
}
#ifdef HAVE_XI2
static void
xi_raw_key (void *event, int press)
{
if (!x_have_focus) {
//avoid being a keylogger
return;
}
XIRawEvent *re = event;
unsigned key = in_x11_process_key_button (re->detail, press);
// Send only the button press: event_key takes care of the UI key event,
// which includes character translation and repeat (XInput2 raw key events
// do not repeat)
in_x11_send_button_event (x11_keyboard_device.devid,
&x11_key_buttons[key],
x11_keyboard_device.event_data);
}
static void
xi_raw_key_press (void *event)
{
xi_raw_key (event, 1);
}
static void
xi_raw_key_resease (void *event)
{
xi_raw_key (event, 0);
}
static void
xi_raw_motion (void *event)
{
int root_x, root_y;
Window root_w, child_w;
XIRawEvent *re = event;
//FIXME it turns out mice can have multiple axes (my trackball has 4:
//usual x and y, +scroll up/down and left/right (clicky and icky, but
//still...)
unsigned mask = re->valuators.mask[0] & 3;
if (!mask) {
return;
}
x11_mouse_axes[0].value = 0;
x11_mouse_axes[1].value = 0;
for (int axis = 0, ind = 0; mask; axis++, mask >>= 1) {
if (mask & 1) {
x11_mouse_axes[axis].value = re->raw_values[ind++];
}
}
XQueryPointer (x_disp, x_win, &root_w, &child_w, &root_x, &root_y,
&x11_mouse.x, &x11_mouse.y, &x11_mouse.shift);
// want only the modifier state
x11_mouse.shift &= 0xff;
if (!in_x11_send_mouse_event (ie_mousemove)) {
in_x11_send_axis_event (x11_mouse_device.devid,
&x11_mouse_axes[0]);
in_x11_send_axis_event (x11_mouse_device.devid,
&x11_mouse_axes[1]);
}
}
static void
xi_raw_button (void *event, int press)
{
int root_x, root_y;
Window root_w, child_w;
unsigned button;
XIRawEvent *re = event;
// x11 buttons are 1-based
button = re->detail - 1;
if (button > X11_MOUSE_BUTTONS) {
return;
}
XQueryPointer (x_disp, x_win, &root_w, &child_w, &root_x, &root_y,
&x11_mouse.x, &x11_mouse.y, &x11_mouse.shift);
// want only the modifier state
x11_mouse.shift &= 0xff;
if (press) {
x11_mouse.buttons |= 1 << button;
} else {
x11_mouse.buttons &= ~(1 << button);
}
x11_mouse_buttons[button].state = press;
if (!in_x11_send_mouse_event (press ? ie_mousedown : ie_mouseup)) {
in_x11_send_button_event (x11_mouse_device.devid,
&x11_mouse_buttons[button],
x11_mouse_device.event_data);
}
}
static void
xi_raw_button_press (void *event)
{
xi_raw_button (event, 1);
}
static void
xi_raw_button_resease (void *event)
{
xi_raw_button (event, 0);
}
static void
xi_barrier_hit (void *event)
{
__auto_type be = *(XIBarrierEvent *) event;
if (be.barrier != x11_left_barrier
&& be.barrier != x11_right_barrier
&& be.barrier != x11_top_barrier
&& be.barrier != x11_bottom_barrier) {
Sys_MaskPrintf (SYS_vid, "xi_barrier_hit: bad barrier %ld\n",
be.barrier);
return;
}
if (!x11_have_pointer || !input_grabbed) {
XIBarrierReleasePointer (x_disp, be.deviceid, be.barrier, be.eventid);
}
}
static void
xi_barrier_leave (void *event)
{
}
static void
event_generic (XEvent *event)
{
// XI_LASTEVENT is the actual last event, not +1
static void (*xi_event_handlers[XI_LASTEVENT + 1]) (void *) = {
[XI_RawKeyPress] = xi_raw_key_press,
[XI_RawKeyRelease] = xi_raw_key_resease,
[XI_RawMotion] = xi_raw_motion,
[XI_RawButtonPress] = xi_raw_button_press,
[XI_RawButtonRelease] = xi_raw_button_resease,
[XI_BarrierHit] = xi_barrier_hit,
[XI_BarrierLeave] = xi_barrier_leave,
};
XGenericEventCookie *cookie = &event->xcookie;
if (cookie->type != GenericEvent || cookie->extension != xi_opcode
|| !XGetEventData (x_disp, cookie)) {
return;
}
if ((unsigned) cookie->evtype <= XI_LASTEVENT
&& xi_event_handlers[cookie->evtype]) {
xi_event_handlers[cookie->evtype] (cookie->data);
}
XFreeEventData (x_disp, cookie);
}
#endif
static void
grab_error (int code, const char *device)
{
const char *reason;
switch (code) {
case AlreadyGrabbed:
reason = "already grabbed";
break;
case GrabNotViewable:
reason = "grab not viewable";
break;
case GrabFrozen:
reason = "grab frozen";
break;
case GrabInvalidTime:
reason = "grab invalid time";
break;
default:
reason = "unknown reason";
break;
}
Sys_Printf ("failed to grab %s: %s\n", device, reason);
}
#ifdef HAVE_XFIXES
static void
in_x11_remove_barriers (void)
{
if (x11_left_barrier > 0) {
XFixesDestroyPointerBarrier (x_disp, x11_left_barrier);
x11_left_barrier = 0;
}
if (x11_right_barrier > 0) {
XFixesDestroyPointerBarrier (x_disp, x11_right_barrier);
x11_right_barrier = 0;
}
if (x11_top_barrier > 0) {
XFixesDestroyPointerBarrier (x_disp, x11_top_barrier);
x11_top_barrier = 0;
}
if (x11_bottom_barrier > 0) {
XFixesDestroyPointerBarrier (x_disp, x11_bottom_barrier);
x11_bottom_barrier = 0;
}
}
static void
in_x11_setup_barriers (int xpos, int ypos, int xlen, int ylen)
{
in_x11_remove_barriers ();
int lx = bound (0, xpos, x_width - 1);
int ty = bound (0, ypos, x_height - 1);
int rx = bound (0, xpos + xlen - 1, x_width - 1);
int by = bound (0, ypos + ylen - 1, x_height - 1);
x11_left_barrier = XFixesCreatePointerBarrier (x_disp, x_root,
lx, ty-1, lx, by+1,
BarrierPositiveX, 0, 0);
x11_right_barrier = XFixesCreatePointerBarrier (x_disp, x_root,
rx, ty-1, rx, by+1,
BarrierNegativeX, 0, 0);
x11_top_barrier = XFixesCreatePointerBarrier (x_disp, x_root,
lx-1, ty, rx+1, ty,
BarrierPositiveY, 0, 0);
x11_bottom_barrier = XFixesCreatePointerBarrier (x_disp, x_root,
lx-1, by, rx+1, by,
BarrierNegativeY, 0, 0);
}
#endif
static void
in_x11_grab_input (void *data, int grab)
{
if (!x_disp || !x_win)
return;
#ifdef HAVE_XFIXES
if (xf_opcode) {
input_grabbed = grab;
if (input_grabbed) {
in_x11_setup_barriers (x11_aw.xpos, x11_aw.ypos,
x11_aw.xlen, x11_aw.ylen);
} else {
in_x11_remove_barriers ();
}
return;
}
#endif
if (vid_fullscreen)
grab = grab || vid_fullscreen->int_val;
if ((input_grabbed && grab) || (!input_grabbed && !grab))
return;
if (grab) {
int ret;
ret = XGrabPointer (x_disp, x_win, True, X11_MOUSE_MASK, GrabModeAsync,
GrabModeAsync, x_win, None, CurrentTime);
if (ret != GrabSuccess) {
grab_error (ret, "mouse");
return;
}
ret = XGrabKeyboard (x_disp, x_win, 1, GrabModeAsync, GrabModeAsync,
CurrentTime);
if (ret != GrabSuccess) {
XUngrabPointer (x_disp, CurrentTime);
grab_error (ret, "keyboard");
return;
}
input_grabbed = 1;
in_dga_f (in_dga);
} else {
XUngrabPointer (x_disp, CurrentTime);
XUngrabKeyboard (x_disp, CurrentTime);
input_grabbed = 0;
in_dga_f (in_dga);
}
}
#ifdef X11_USE_SELECT
static void
in_x11_add_select (qf_fd_set *fdset, int *maxfd, void *data)
{
QF_FD_SET (x11_fd, fdset);
if (*maxfd < x11_fd) {
*maxfd = x11_fd;
}
}
static void
in_x11_check_select (qf_fd_set *fdset, void *data)
{
if (QF_FD_ISSET (x11_fd, fdset)) {
Sys_Printf ("in_x11_check_select\n");
X11_ProcessEvents (); // Get events from X server.
}
}
#else
static void
in_x11_process_events (void *data)
{
X11_ProcessEvents (); // Get events from X server.
}
#endif
static void
in_x11_axis_info (void *data, void *device, in_axisinfo_t *axes, int *numaxes)
{
x11_device_t *dev = device;
if (!axes) {
*numaxes = dev->num_axes;
return;
}
if (*numaxes > dev->num_axes) {
*numaxes = dev->num_axes;
}
memcpy (axes, dev->axes, *numaxes * sizeof (in_axisinfo_t));
}
static void
in_x11_button_info (void *data, void *device, in_buttoninfo_t *buttons,
int *numbuttons)
{
x11_device_t *dev = device;
if (!buttons) {
*numbuttons = dev->num_buttons;
return;
}
if (*numbuttons > dev->num_buttons) {
*numbuttons = dev->num_buttons;
}
memcpy (buttons, dev->buttons, *numbuttons * sizeof (in_buttoninfo_t));
}
static const char *
in_x11_get_axis_name (void *data, void *device, int axis_num)
{
x11_device_t *dev = device;
const char *name = 0;
if (dev == &x11_keyboard_device) {
// keyboards don't have axes...
} else if (dev == &x11_mouse_device) {
if ((unsigned) axis_num < SIZE (x11_mouse_axis_names)) {
name = x11_mouse_axis_names[axis_num];
}
}
return name;
}
static const char *
in_x11_get_button_name (void *data, void *device, int button_num)
{
x11_device_t *dev = device;
const char *name = 0;
if (dev == &x11_keyboard_device) {
// X11 protocol supports only 256 keys. The key codes are the AT scan
// codes offset by 8 (so Esc is 9 instead of 1).
KeyCode keycode = (button_num + 8) & 0xff;
KeySym keysym = XkbKeycodeToKeysym (x_disp, keycode, 0, 0);
if (keysym != NoSymbol) {
name = XKeysymToString (keysym);
}
} else if (dev == &x11_mouse_device) {
if ((unsigned) button_num < SIZE (x11_mouse_button_names)) {
name = x11_mouse_button_names[button_num];
}
}
return name;
}
static int
in_x11_get_axis_info (void *data, void *device, int axis_num,
in_axisinfo_t *info)
{
x11_device_t *dev = device;
if (axis_num < 0 || axis_num > dev->num_axes) {
return 0;
}
*info = dev->axes[axis_num];
return 1;
}
static int
in_x11_get_button_info (void *data, void *device, int button_num,
in_buttoninfo_t *info)
{
x11_device_t *dev = device;
if (button_num < 0 || button_num > dev->num_buttons) {
return 0;
}
*info = dev->buttons[button_num];
return 1;
}
static int
in_x11_get_axis_num (void *data, void *device, const char *axis_name)
{
x11_device_t *dev = device;
int num = -1;
if (dev == &x11_keyboard_device) {
// keyboards don't have axes...
} else if (dev == &x11_mouse_device) {
for (size_t i = 0; i < SIZE (x11_mouse_axis_names); i++) {
if (strcasecmp (axis_name, x11_mouse_axis_names[i]) == 0) {
num = i;
break;
}
}
}
return num;
}
static int
in_x11_get_button_num (void *data, void *device, const char *button_name)
{
x11_device_t *dev = device;
int num = -1;
if (dev == &x11_keyboard_device) {
KeySym keysym = XStringToKeysym (button_name);
if (keysym != NoSymbol) {
KeyCode keycode = XKeysymToKeycode (x_disp, keysym);
if (keycode != 0) {
// X11 protocol supports only 256 keys. The key codes are the
// AT scan codes offset by 8 (so Esc is 9 instead of 1).
num = (keycode - 8) & 0xff;
}
}
} else if (dev == &x11_mouse_device) {
for (size_t i = 0; i < SIZE (x11_mouse_button_names); i++) {
if (strcasecmp (button_name, x11_mouse_button_names[i]) == 0) {
num = i;
break;
}
}
}
return num;
}
static void
in_x11_shutdown (void *data)
{
Sys_MaskPrintf (SYS_vid, "in_x11_shutdown\n");
if (x_disp) {
// XAutoRepeatOn (x_disp);
dga_off ();
}
if (in_mouse_accel && !in_mouse_accel->int_val)
X11_RestoreMouseAcceleration ();
}
static void
in_x11_set_device_event_data (void *device, void *event_data, void *data)
{
x11_device_t *dev = device;
dev->event_data = event_data;
}
static void *
in_x11_get_device_event_data (void *device, void *data)
{
x11_device_t *dev = device;
return dev->event_data;
}
static void
in_x11_init_cvars (void *data)
{
in_auto_focus = Cvar_Get ("in_auto_focus", "1", CVAR_ARCHIVE, 0,
"grab input focus when the mouse enters the"
" window when using xinput2 with certain"
" window managers using focus-follows-mouse"
" (eg, openbox)");
in_snd_block = Cvar_Get ("in_snd_block", "0", CVAR_ARCHIVE, NULL,
"block sound output on window focus loss");
in_dga = Cvar_Get ("in_dga", "0", CVAR_ARCHIVE, in_dga_f,
"DGA Input support");
in_mouse_accel = Cvar_Get ("in_mouse_accel", "1", CVAR_ARCHIVE,
in_mouse_accel_f,
"set to 0 to remove mouse acceleration");
}
static void
x11_add_device (x11_device_t *dev)
{
for (int i = 0; i < dev->num_axes; i++) {
dev->axes[i].axis = i;
}
for (int i = 0; i < dev->num_buttons; i++) {
dev->buttons[i].button = i;
}
dev->devid = IN_AddDevice (x11_driver_handle, dev, dev->name, dev->name);
}
#ifdef HAVE_XI2
static int
in_x11_check_xi2 (void)
{
// Support XI 2.2
int major = 2, minor = 2;
int event, error;
int ret;
if (!XQueryExtension (x_disp, "XInputExtension",
&xi_opcode, &event, &error)) {
Sys_MaskPrintf (SYS_vid, "X Input extenions not available.\n");
return 0;
}
if ((ret = XIQueryVersion (x_disp, &major, &minor)) == BadRequest) {
Sys_MaskPrintf (SYS_vid,
"No XI2 support. Server supports only %d.%d\n",
major, minor);
return 0;
} else if (ret != Success) {
Sys_MaskPrintf (SYS_vid, "in_x11_check_xi2: Xlib return bad: %d\n",
ret);
}
Sys_MaskPrintf (SYS_vid, "XI2 supported: version %d.%d, op: %d err: %d\n",
major, minor, xi_opcode, error);
if (!XQueryExtension (x_disp, "XFIXES", &xf_opcode, &event, &error)) {
Sys_MaskPrintf (SYS_vid, "X fixes extenions not available.\n");
return 0;
}
major = 5, minor = 0;
if (!XFixesQueryVersion (x_disp, &major, &minor)
|| (major * 10 + minor) < 50) {
Sys_MaskPrintf (SYS_vid, "Need X fixes 5.0.\n");
return 0;
}
Sys_MaskPrintf (SYS_vid,
"XFixes supported: version %d.%d, op: %d err: %d\n",
major, minor, xf_opcode, error);
return 1;
}
static void
in_x11_xi_select_events (void)
{
byte mask[(XI_LASTEVENT + 7) / 8] = {};
XIEventMask evmask = {
.deviceid = XIAllMasterDevices,
.mask_len = sizeof (mask),
.mask = mask,
};
XISetMask (mask, XI_BarrierHit);
XISetMask (mask, XI_BarrierLeave);
XISetMask (mask, XI_RawKeyPress);
XISetMask (mask, XI_RawKeyRelease);
XISelectEvents (x_disp, x_root, &evmask, 1);
}
static void
in_x11_xi_setup_grabs (void)
{
// FIXME normal apps aren't supposed to care about the client pointer,
// but grabbing all master devices grabs the keyboard, too, which blocks
// alt-tab and the like
int dev;
XIGetClientPointer (x_disp, x_win, &dev);
byte mask[(XI_LASTEVENT + 7) / 8] = {};
XIEventMask evmask = {
.deviceid = dev,
.mask_len = sizeof (mask),
.mask = mask,
};
XISetMask (mask, XI_RawMotion);
XISetMask (mask, XI_RawButtonPress);
XISetMask (mask, XI_RawButtonRelease);
XIGrabModifiers modif = {
.modifiers = XIAnyModifier,
};
// Grab mouse events on the app window so window manager actions (eg,
// alt-middle-click) don't interfere. However, the keyboard is not grabbed
// so the user always has a way to take control (assuming the window
// manager provides such, but most do).
XIGrabEnter (x_disp, dev, x_win, None, XIGrabModeAsync, XIGrabModeAsync,
0, &evmask, 1, &modif);
}
#endif
static void
x11_app_window (const IE_event_t *ie_event)
{
x11_aw = ie_event->app_window;
Sys_MaskPrintf (SYS_vid, "window: %d %d %d %d\n",
x11_aw.xpos, x11_aw.ypos, x11_aw.xlen, x11_aw.ylen);
#ifdef HAVE_XFIXES
if (input_grabbed) {
in_x11_setup_barriers (x11_aw.xpos, x11_aw.ypos,
x11_aw.xlen, x11_aw.ylen);
}
#endif
}
static int
x11_event_handler (const IE_event_t *ie_event, void *unused)
{
static void (*handlers[ie_event_count]) (const IE_event_t *ie_event) = {
[ie_app_window] = x11_app_window,
};
if ((unsigned) ie_event->type >= ie_event_count
|| !handlers[ie_event->type]) {
return 0;
}
handlers[ie_event->type] (ie_event);
return 1;
}
long
IN_X11_Preinit (void)
{
if (!x_disp)
Sys_Error ("IN: No display!!");
long event_mask = X11_INPUT_MASK;
x11_event_handler_id = IE_Add_Handler (x11_event_handler, 0);
#ifdef HAVE_XI2
x11_have_xi = in_x11_check_xi2 ();
#endif
X11_AddEvent (KeyPress, &event_key);
X11_AddEvent (KeyRelease, &event_key);
X11_AddEvent (FocusIn, &event_focusin);
X11_AddEvent (FocusOut, &event_focusout);
X11_AddEvent (SelectionNotify, &selection_notify);
X11_AddEvent (EnterNotify, &enter_notify);
X11_AddEvent (LeaveNotify, &leave_notify);
if (x11_have_xi) {
#ifdef HAVE_XI2
X11_AddEvent (GenericEvent, &event_generic);
#endif
} else {
X11_AddEvent (MotionNotify, &event_motion);
X11_AddEvent (ButtonPress, &event_button);
X11_AddEvent (ButtonRelease, &event_button);
}
Cmd_AddCommand ("in_paste_buffer", in_paste_buffer_f,
"Paste the contents of X's C&P buffer to the console");
return event_mask;
}
void
IN_X11_Postinit (void)
{
if (!x_disp)
Sys_Error ("IN: No display!!");
if (!x_win)
Sys_Error ("IN: No window!!");
if (x11_have_xi) {
#ifdef HAVE_XI2
in_x11_xi_select_events ();
in_x11_xi_setup_grabs ();
#endif
} else {
dga_avail = VID_CheckDGA (x_disp, NULL, NULL, NULL);
Sys_MaskPrintf (SYS_vid, "VID_CheckDGA returned %d\n",
dga_avail);
}
}
static void
in_x11_init (void *data)
{
x11_fd = ConnectionNumber (x_disp);
x11_add_device (&x11_keyboard_device);
x11_add_device (&x11_mouse_device);
}
static void
in_x11_clear_states (void *data)
{
}
static in_driver_t in_x11_driver = {
.init_cvars = in_x11_init_cvars,
.init = in_x11_init,
.shutdown = in_x11_shutdown,
.set_device_event_data = in_x11_set_device_event_data,
.get_device_event_data = in_x11_get_device_event_data,
#ifdef X11_USE_SELECT
.add_select = in_x11_add_select,
.check_select = in_x11_check_select,
#else
.process_events = in_x11_process_events,
#endif
.clear_states = in_x11_clear_states,
.grab_input = in_x11_grab_input,
.axis_info = in_x11_axis_info,
.button_info = in_x11_button_info,
.get_axis_name = in_x11_get_axis_name,
.get_button_name = in_x11_get_button_name,
.get_axis_num = in_x11_get_axis_num,
.get_button_num = in_x11_get_button_num,
.get_axis_info = in_x11_get_axis_info,
.get_button_info = in_x11_get_button_info,
};
static void __attribute__((constructor))
in_x11_register_driver (void)
{
x11_driver_handle = IN_RegisterDriver (&in_x11_driver, 0);
}
int x11_force_link;
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