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quakeforge/libs/video/targets/in_x11.c
Ozkan Sezer 6e04fd5ff6 signed int viddef_t members 
The attached patch (against quakeforge git) changes the [con]width,
[con]height, and most importantly the rowbytes members of viddef_t
from unsigned to signed int, like in q2.  This allows for a properly
negative vid.rowbytes which may be needed in, e.g. a DIB sections
windows driver if needed.  Along with it, I changed a few places
where unsigned int is used along with comparisons against the relevant
vid.* members.
One thing I am not 100% sure is the signedness requirements of
d_zrowbytes and d_zwidth: q2 has them as unsigned but I am not sure
whether that is because they are needed as unsigned or it was just an
oversight of the id developers. They do look like they should be OK
as signed int to me, though: comments?

==
Note from Bill Currie: I had to do some extra changes as many
signed/unsigned comparisons were somehow missed.
2012-10-21 09:00:50 +09:00

864 lines
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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/Sunkeysym.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#ifdef HAVE_DGA
# include <X11/extensions/XShm.h>
# ifdef DGA_OLD_HEADERS
# include <X11/extensions/xf86dga.h>
# else
# include <X11/extensions/Xxf86dga.h>
#endif
#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 "compat.h"
#include "context_x11.h"
#include "dga_check.h"
#include "vid_internal.h"
cvar_t *in_snd_block;
cvar_t *in_dga;
cvar_t *in_mouse_accel;
static qboolean dga_avail;
static qboolean dga_active;
static keydest_t old_key_dest = key_none;
static int p_mouse_x, p_mouse_y;
static int input_grabbed = 0;
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
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;
}
// get bytes to keys.c
for (p = data; num_bytes && *p; p++, num_bytes--) {
Key_Event (QFK_UNKNOWN, *p, 1);
Key_Event (QFK_UNKNOWN, 0, 0);
}
XFree (data);
}
static void
enter_notify (XEvent *event)
{
x_time = event->xcrossing.time;
p_mouse_x = event->xmotion.x;
p_mouse_y = event->xmotion.y;
}
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
event_key (XEvent *event)
{
int key, unicode;
x_time = event->xkey.time;
if (old_key_dest != key_dest) {
old_key_dest = key_dest;
if (key_dest == key_game) {
XAutoRepeatOff (x_disp);
} else {
XAutoRepeatOn (x_disp);
}
}
XLateKey (&event->xkey, &key, &unicode);
Key_Event (key, unicode, event->type == KeyPress);
}
static void
event_button (XEvent *event)
{
unsigned but;
x_time = event->xbutton.time;
but = event->xbutton.button;
if (but > 32)
return;
if (but == 2)
but = 3;
else if (but == 3)
but = 2;
switch (but) {
default:
Key_Event (QFM_BUTTON1 + but - 1, 0, event->type == ButtonPress);
break;
case 4:
Key_Event (QFM_WHEEL_UP, 0, event->type == ButtonPress);
break;
case 5:
Key_Event (QFM_WHEEL_DOWN, 0, event->type == ButtonPress);
break;
}
}
static void
event_focusout (XEvent *event)
{
if (x_have_focus) {
x_have_focus = false;
XAutoRepeatOn (x_disp);
if (in_snd_block->int_val) {
S_BlockSound ();
CDAudio_Pause ();
}
X11_RestoreGamma ();
}
}
static void
event_focusin (XEvent *event)
{
x_have_focus = true;
if (key_dest == key_game)
XAutoRepeatOff (x_disp);
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
event_motion (XEvent *event)
{
x_time = event->xmotion.time;
if (x_time <= x_mouse_time) {
p_mouse_x = event->xmotion.x;
p_mouse_y = event->xmotion.y;
return;
}
if (dga_active) {
in_mouse_x += event->xmotion.x_root;
in_mouse_y += event->xmotion.y_root;
} else {
if (vid_fullscreen->int_val || input_grabbed) {
if (!event->xmotion.send_event) {
int dist_x = abs (viddef.width / 2 - event->xmotion.x);
int dist_y = abs (viddef.height / 2 - event->xmotion.y);
in_mouse_x += (event->xmotion.x - p_mouse_x);
in_mouse_y += (event->xmotion.y - p_mouse_y);
if (dist_x > viddef.width / 4 || dist_y > viddef.height / 4) {
center_pointer ();
}
}
} else {
in_mouse_x += (event->xmotion.x - p_mouse_x);
in_mouse_y += (event->xmotion.y - p_mouse_y);
}
p_mouse_x = event->xmotion.x;
p_mouse_y = event->xmotion.y;
}
}
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);
}
void
IN_LL_Grab_Input (int grab)
{
if (!x_disp || !x_win)
return;
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);
}
}
void
IN_LL_ProcessEvents (void)
{
X11_ProcessEvents (); // Get events from X server.
}
void
IN_LL_Shutdown (void)
{
Sys_MaskPrintf (SYS_VID, "IN_LL_Shutdown\n");
in_mouse_avail = 0;
if (x_disp) {
XAutoRepeatOn (x_disp);
dga_off ();
}
if (in_mouse_accel && !in_mouse_accel->int_val)
X11_RestoreMouseAcceleration ();
X11_CloseDisplay ();
}
void
IN_LL_Init (void)
{
// open the display
if (!x_disp)
Sys_Error ("IN: No display!!");
if (!x_win)
Sys_Error ("IN: No window!!");
X11_OpenDisplay (); // 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 | X11_INPUT_MASK;
XChangeWindowAttributes (x_disp, x_win, attribmask, &attribs_2);
}
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);
if (!COM_CheckParm ("-nomouse")) {
dga_avail = VID_CheckDGA (x_disp, NULL, NULL, NULL);
Sys_MaskPrintf (SYS_VID, "VID_CheckDGA returned %d\n", dga_avail);
X11_AddEvent (ButtonPress, &event_button);
X11_AddEvent (ButtonRelease, &event_button);
X11_AddEvent (MotionNotify, &event_motion);
in_mouse_avail = 1;
}
Cmd_AddCommand ("in_paste_buffer", in_paste_buffer_f,
"Paste the contents of X's C&P buffer to the console");
}
void
IN_LL_Init_Cvars (void)
{
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, //FIXME 0 until X fixed
"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");
}
void
IN_LL_ClearStates (void)
{
}
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