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rallyunlimited-engine/code/unix/linux_glimp.c
CuteNoiRe 8c56f85692 initial commit
2024-02-02 19:46:17 +03:00

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
/*
** GLW_IMP.C
**
** This file contains ALL Linux specific stuff having to do with the
** OpenGL refresh. When a port is being made the following functions
** must be implemented by the port:
**
** GLimp_EndFrame
** GLimp_Init
** GLimp_Shutdown
** GLimp_SetGamma
**
*/
#include <termios.h>
#include <sys/ioctl.h>
#ifdef __linux__
#include <sys/stat.h>
#include <sys/vt.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include <pthread.h>
#include <semaphore.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include "../client/client.h"
#include "linux_local.h"
#include "unix_glw.h"
#ifdef USE_OPENGL_API
#include "../renderer/qgl.h"
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#include <X11/Xatom.h>
#include <X11/XKBlib.h>
#if !defined(__sun)
#include <X11/extensions/Xxf86dga.h>
#endif
#if defined(__sun)
#include <X11/Sunkeysym.h>
#endif
#ifdef _XF86DGA_H_
#define HAVE_XF86DGA
#endif
typedef enum
{
RSERR_OK,
RSERR_INVALID_FULLSCREEN,
RSERR_INVALID_MODE,
RSERR_FATAL_ERROR,
RSERR_UNKNOWN
} rserr_t;
typedef struct motifHints_s
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} motifHints_t;
glwstate_t glw_state;
Display *dpy = NULL;
int scrnum;
Window win = 0;
#ifdef USE_OPENGL_API
static GLXContext ctx = NULL;
#endif
static Atom wmDeleteEvent = None;
static Atom motifWMHints = None;
static int window_width = 0;
static int window_height = 0;
static qboolean window_created;
static qboolean window_exposed;
#define KEY_MASK (KeyPressMask | KeyReleaseMask)
#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask | ButtonMotionMask )
#define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask | FocusChangeMask | ExposureMask )
static qboolean mouse_avail;
static qboolean mouse_active = qfalse;
static int mwx, mwy;
static int mx = 0, my = 0;
// Time mouse was reset, we ignore the first 50ms of the mouse to allow settling of events
static int mouseResetTime = 0;
#define MOUSE_RESET_DELAY 50
static cvar_t *in_mouse;
static cvar_t *in_dgamouse; // user pref for dga mouse
static cvar_t *in_shiftedKeys; // obey modifiers for certain keys in non-console (comma, numbers, etc)
static cvar_t *in_subframe;
static cvar_t *in_nograb; // this is strictly for developers
cvar_t *in_forceCharset;
#ifdef USE_JOYSTICK
cvar_t *in_joystick = NULL;
cvar_t *in_joystickDebug = NULL;
cvar_t *joy_threshold = NULL;
#endif
static int mouse_accel_numerator;
static int mouse_accel_denominator;
static int mouse_threshold;
static int win_x, win_y;
/*****************************************************************************
** KEYBOARD
** NOTE TTimo the keyboard handling is done with KeySyms
** that means relying on the keyboard mapping provided by X
** in-game it would probably be better to use KeyCode (i.e. hardware key codes)
** you would still need the KeySyms in some cases, such as for the console and all entry textboxes
** (cause there's nothing worse than a qwerty mapping on a french keyboard)
**
** you can turn on some debugging and verbose of the keyboard code with #define KBD_DBG
******************************************************************************/
//#define KBD_DBG
static const char s_keytochar[ 128 ] =
{
//0 1 2 3 4 5 6 7 8 9 A B C D E F
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '1', '2', '3', '4', '5', '6', // 0
'7', '8', '9', '0', '-', '=', 0x8, 0x9, 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', // 1
'o', 'p', '[', ']', 0x0, 0x0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', // 2
'\'', 0x0, 0x0, '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0x0, '*', // 3
//0 1 2 3 4 5 6 7 8 9 A B C D E F
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '!', '@', '#', '$', '%', '^', // 4
'&', '*', '(', ')', '_', '+', 0x8, 0x9, 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', // 5
'O', 'P', '{', '}', 0x0, 0x0, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', // 6
'"', 0x0, 0x0, '|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 0x0, '*', // 7
};
void IN_ActivateMouse( void );
void IN_DeactivateMouse( void );
qboolean IN_MouseActive( void );
static char *XLateKey( XKeyEvent *ev, int *key )
{
static unsigned char buf[64];
static unsigned char bufnomod[2];
KeySym keysym;
int XLookupRet;
*key = 0;
XLookupRet = XLookupString(ev, (char*)buf, sizeof(buf), &keysym, 0);
#ifdef KBD_DBG
Com_Printf( "XLookupString ret: %d buf: %s keysym: %x\n", XLookupRet, buf, (int)keysym) ;
#endif
if (!in_shiftedKeys->integer) {
// also get a buffer without modifiers held
ev->state = 0;
XLookupRet = XLookupString(ev, (char*)bufnomod, sizeof(bufnomod), &keysym, 0);
#ifdef KBD_DBG
Com_Printf( "XLookupString (minus modifiers) ret: %d buf: %s keysym: %x\n", XLookupRet, buf, (int)keysym );
#endif
} else {
bufnomod[0] = '\0';
}
switch (keysym)
{
case XK_grave:
case XK_twosuperior:
*key = K_CONSOLE;
buf[0] = '\0';
return (char*)buf;
case XK_KP_Page_Up:
case XK_KP_9: *key = K_KP_PGUP; break;
case XK_Page_Up: *key = K_PGUP; break;
case XK_KP_Page_Down:
case XK_KP_3: *key = K_KP_PGDN; break;
case XK_Page_Down: *key = K_PGDN; break;
case XK_KP_Home: *key = K_KP_HOME; break;
case XK_KP_7: *key = K_KP_HOME; break;
case XK_Home: *key = K_HOME; break;
case XK_KP_End:
case XK_KP_1: *key = K_KP_END; break;
case XK_End: *key = K_END; break;
case XK_KP_Left: *key = K_KP_LEFTARROW; break;
case XK_KP_4: *key = K_KP_LEFTARROW; break;
case XK_Left: *key = K_LEFTARROW; break;
case XK_KP_Right: *key = K_KP_RIGHTARROW; break;
case XK_KP_6: *key = K_KP_RIGHTARROW; break;
case XK_Right: *key = K_RIGHTARROW; break;
case XK_KP_Down:
case XK_KP_2: if ( Key_GetCatcher() && (buf[0] || bufnomod[0]) )
*key = 0;
else
*key = K_KP_DOWNARROW;
break;
case XK_Down: *key = K_DOWNARROW; break;
case XK_KP_Up:
case XK_KP_8: if ( Key_GetCatcher() && (buf[0] || bufnomod[0]) )
*key = 0;
else
*key = K_KP_UPARROW;
break;
case XK_Up: *key = K_UPARROW; break;
case XK_Escape: *key = K_ESCAPE; break;
case XK_KP_Enter: *key = K_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;
// bk001206 - from Ryan's Fakk2
//case XK_BackSpace: *key = 8; break; // ctrl-h
case XK_BackSpace: *key = K_BACKSPACE; break; // ctrl-h
case XK_KP_Delete:
case XK_KP_Decimal: *key = K_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_Alt_L:
case XK_Meta_L:
case XK_Alt_R:
case XK_Meta_R: *key = K_ALT; break;
case XK_KP_Begin: *key = K_KP_5; break;
case XK_Insert: *key = K_INS; break;
case XK_KP_Insert:
case XK_KP_0: *key = K_KP_INS; break;
case XK_KP_Multiply: *key = '*'; break;
case XK_KP_Add: *key = K_KP_PLUS; break;
case XK_KP_Subtract: *key = K_KP_MINUS; break;
case XK_KP_Divide: *key = K_KP_SLASH; break;
case XK_exclam: *key = '1'; break;
case XK_at: *key = '2'; break;
case XK_numbersign: *key = '3'; break;
case XK_dollar: *key = '4'; break;
case XK_percent: *key = '5'; break;
case XK_asciicircum: *key = '6'; break;
case XK_ampersand: *key = '7'; break;
case XK_asterisk: *key = '8'; break;
case XK_parenleft: *key = '9'; break;
case XK_parenright: *key = '0'; break;
// weird french keyboards ..
// NOTE: console toggle is hardcoded in cl_keys.c, can't be unbound
// cleaner would be .. using hardware key codes instead of the key syms
// could also add a new K_KP_CONSOLE
//case XK_twosuperior: *key = '~'; break;
case XK_space:
case XK_KP_Space: *key = K_SPACE; break;
case XK_Menu: *key = K_MENU; break;
case XK_Print: *key = K_PRINT; break;
case XK_Super_L:
case XK_Super_R: *key = K_SUPER; break;
case XK_Num_Lock: *key = K_KP_NUMLOCK; break;
case XK_Caps_Lock: *key = K_CAPSLOCK; break;
case XK_Scroll_Lock: *key = K_SCROLLOCK; break;
case XK_backslash: *key = '\\'; break;
default:
//Com_Printf( "unknown keysym: %08X\n", keysym );
if (XLookupRet == 0)
{
if (com_developer->value)
{
Com_Printf( "Warning: XLookupString failed on KeySym %d\n", (int)keysym );
}
buf[0] = '\0';
return (char*)buf;
}
else
{
// XK_* tests failed, but XLookupString got a buffer, so let's try it
if (in_shiftedKeys->integer) {
*key = *(unsigned char *)buf;
if (*key >= 'A' && *key <= 'Z')
*key = *key - 'A' + 'a';
// if ctrl is pressed, the keys are not between 'A' and 'Z', for instance ctrl-z == 26 ^Z ^C etc.
// see https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=19
else if (*key >= 1 && *key <= 26)
*key = *key + 'a' - 1;
} else {
*key = bufnomod[0];
}
}
break;
}
return (char*)buf;
}
// ========================================================================
// makes a null cursor
// ========================================================================
static Cursor CreateNullCursor( Display *display, Window root )
{
Pixmap cursormask;
XGCValues xgc;
GC gc;
XColor dummycolour;
Cursor cursor;
cursormask = XCreatePixmap( display, root, 1, 1, 1/*depth*/ );
xgc.function = GXclear;
gc = XCreateGC( display, cursormask, GCFunction, &xgc );
XFillRectangle( display, cursormask, gc, 0, 0, 1, 1 );
dummycolour.pixel = 0;
dummycolour.red = 0;
dummycolour.flags = 04;
cursor = XCreatePixmapCursor( display, cursormask, cursormask, &dummycolour, &dummycolour, 0, 0 );
XFreePixmap( display, cursormask );
XFreeGC( display, gc );
return cursor;
}
static void install_mouse_grab( void )
{
int res;
// move pointer to destination window area
XWarpPointer( dpy, None, win, 0, 0, 0, 0, window_width / 2, window_height / 2 );
XSync( dpy, False );
// hide cursor
XDefineCursor( dpy, win, CreateNullCursor( dpy, win ) );
// save old mouse settings
XGetPointerControl( dpy, &mouse_accel_numerator, &mouse_accel_denominator, &mouse_threshold );
// do this earlier?
res = XGrabPointer( dpy, win, False, MOUSE_MASK, GrabModeAsync, GrabModeAsync, win, None, CurrentTime );
if ( res != GrabSuccess )
{
//Com_Printf( S_COLOR_YELLOW "Warning: XGrabPointer() failed\n" );
}
else
{
// set new mouse settings
XChangePointerControl( dpy, True, True, 1, 1, 1 );
}
XSync( dpy, False );
mouseResetTime = Sys_Milliseconds();
#ifdef HAVE_XF86DGA
if ( in_dgamouse->integer )
{
if ( !glw_state.dga_ext )
{
Cvar_Set( "in_dgamouse", "0" );
}
else
{
DGA_Mouse( qtrue );
XWarpPointer( dpy, None, win, 0, 0, 0, 0, window_width / 2, window_height / 2 );
}
}
else
#endif /* HAVE_XF86DGA */
{
mwx = window_width / 2;
mwy = window_height / 2;
mx = my = 0;
}
XSync( dpy, False );
}
static void install_kb_grab( void )
{
int res;
res = XGrabKeyboard( dpy, win, False, GrabModeAsync, GrabModeAsync, CurrentTime );
if ( res != GrabSuccess )
{
//Com_Printf( S_COLOR_YELLOW "Warning: XGrabKeyboard() failed\n" );
}
XSync( dpy, False );
}
static void uninstall_mouse_grab( void )
{
#ifdef HAVE_XF86DGA
if ( in_dgamouse->integer )
{
if ( com_developer->integer )
{
Com_Printf( "DGA Mouse - Disabling DGA DirectVideo\n" );
}
DGA_Mouse( qfalse );
}
#endif /* HAVE_XF86DGA */
// restore mouse settings
XChangePointerControl( dpy, qtrue, qtrue, mouse_accel_numerator,
mouse_accel_denominator, mouse_threshold );
XWarpPointer( dpy, None, win, 0, 0, 0, 0, window_width / 2, window_height / 2 );
XUngrabPointer( dpy, CurrentTime );
XUngrabKeyboard( dpy, CurrentTime );
// show cursor
XUndefineCursor( dpy, win );
XSync( dpy, False );
}
static void uninstall_kb_grab( void )
{
XUngrabKeyboard( dpy, CurrentTime );
XSync( dpy, False );
}
// bk001206 - from Ryan's Fakk2
/**
* XPending() actually performs a blocking read
* if no events available. From Fakk2, by way of
* Heretic2, by way of SDL, original idea GGI project.
* The benefit of this approach over the quite
* badly behaved XAutoRepeatOn/Off is that you get
* focus handling for free, which is a major win
* with debug and windowed mode. It rests on the
* assumption that the X server will use the
* same timestamp on press/release event pairs
* for key repeats.
*/
static qboolean X11_PendingInput( void )
{
assert(dpy != NULL);
// Flush the display connection and look to see if events are queued
XFlush( dpy );
if ( XEventsQueued( dpy, QueuedAlready ) )
{
return qtrue;
}
// More drastic measures are required -- see if X is ready to talk
{
static struct timeval zero_time;
int x11_fd;
fd_set fdset;
x11_fd = ConnectionNumber( dpy );
FD_ZERO( &fdset );
FD_SET( x11_fd, &fdset );
if ( select( x11_fd+1, &fdset, NULL, NULL, &zero_time ) == 1 )
{
return( XPending( dpy ) );
}
}
// Oh well, nothing is ready ..
return qfalse;
}
static qboolean repeated_press( XEvent *event )
{
XEvent peek;
assert( dpy != NULL );
if ( X11_PendingInput() )
{
XPeekEvent( dpy, &peek );
if ( ( peek.type == KeyPress ) &&
( peek.xkey.keycode == event->xkey.keycode ) &&
( peek.xkey.time == event->xkey.time ) )
{
return qtrue;
}
}
return qfalse;
}
static qboolean WindowMinimized( Display *dpy, Window win )
{
unsigned long i, num_items, bytes_after;
Atom actual_type, *atoms, nws, nwsh;
int actual_format;
nws = XInternAtom( dpy, "_NET_WM_STATE", True );
if ( nws == BadValue || nws == None )
return qfalse;
nwsh = XInternAtom( dpy, "_NET_WM_STATE_HIDDEN", True );
if ( nwsh == BadValue || nwsh == None )
return qfalse;
atoms = NULL;
XGetWindowProperty( dpy, win, nws, 0, 0x7FFFFFFF, False, XA_ATOM,
&actual_type, &actual_format, &num_items,
&bytes_after, (unsigned char**)&atoms );
for ( i = 0; i < num_items; i++ )
{
if ( atoms[i] == nwsh )
{
XFree( atoms );
return qtrue;
}
}
XFree( atoms );
return qfalse;
}
static qboolean directMap( const byte chr )
{
if ( !in_forceCharset->integer )
return qtrue;
switch ( chr ) // edit control sequences
{
case 'c'-'a'+1:
case 'v'-'a'+1:
case 'h'-'a'+1:
case 'a'-'a'+1:
case 'e'-'a'+1:
case 'n'-'a'+1:
case 'p'-'a'+1:
case 'l'-'a'+1: // CTRL+L
return qtrue;
}
if ( chr < ' ' || chr > 127 || in_forceCharset->integer > 1 )
return qfalse;
else
return qtrue;
}
/*
================
Sys_XTimeToSysTime
sub-frame timing of events returned by X
X uses the Time typedef - unsigned long
disable with in_subframe 0
sys_timeBase*1000 is the number of ms since the Epoch of our origin
xtime is in ms and uses the Epoch as origin
Time data type is an unsigned long: 0xffffffff ms - ~49 days period
I didn't find much info in the XWindow documentation about the wrapping
we clamp sys_timeBase*1000 to unsigned long, that gives us the current origin for xtime
the computation will still work if xtime wraps (at ~49 days period since the Epoch) after we set sys_timeBase
================
*/
static int Sys_XTimeToSysTime( Time xtime )
{
extern unsigned long sys_timeBase;
int ret, t, test;
if ( !in_subframe->integer )
{
// if you don't want to do any event times corrections
return Sys_Milliseconds();
}
// test the wrap issue
#if 0
// reference values for test: sys_timeBase 0x3dc7b5e9 xtime 0x541ea451 (read these from a test run)
// xtime will wrap in 0xabe15bae ms >~ 0x2c0056 s (33 days from Nov 5 2002 -> 8 Dec)
// NOTE: date -d '1970-01-01 UTC 1039384002 seconds' +%c
// use sys_timeBase 0x3dc7b5e9+0x2c0056 = 0x3df3b63f
// after around 5s, xtime would have wrapped around
// we get 7132, the formula handles the wrap safely
unsigned long xtime_aux,base_aux;
int test;
// Com_Printf("sys_timeBase: %p\n", sys_timeBase);
// Com_Printf("xtime: %p\n", xtime);
xtime_aux = 500; // 500 ms after wrap
base_aux = 0x3df3b63f; // the base a few seconds before wrap
test = xtime_aux - (unsigned long)(base_aux*1000);
Com_Printf("xtime wrap test: %d\n", test);
#endif
// some X servers (like suse 8.1's) report weird event times
// if the game is loading, resolving DNS, etc. we are also getting old events
// so we only deal with subframe corrections that look 'normal'
ret = xtime - (unsigned long)(sys_timeBase * 1000);
t = Sys_Milliseconds();
test = t - ret;
//printf("delta: %d\n", test);
if (test < 0 || test > 30) // in normal conditions I've never seen this go above
{
return t;
}
return ret;
}
void HandleEvents( void )
{
XEvent event;
int btn_code;
int key;
qboolean dowarp = qfalse;
char *p;
int dx, dy;
int t = 0; // default to 0 in case we don't set
qboolean btn_press;
char buf[2];
if ( !dpy )
return;
while( XPending( dpy ) )
{
XNextEvent( dpy, &event );
switch( event.type )
{
case ClientMessage:
if ( event.xclient.data.l[0] == wmDeleteEvent ) {
Cmd_Clear();
Com_Quit_f();
}
break;
case KeyPress:
// Com_Printf("^2K+^7 %08X\n", event.xkey.keycode );
t = Sys_XTimeToSysTime( event.xkey.time );
if ( event.xkey.keycode == 0x31 )
{
key = K_CONSOLE;
p = "";
}
else
{
int shift = (event.xkey.state & 1);
p = XLateKey( &event.xkey, &key );
if ( *p && event.xkey.keycode == 0x5B )
{
p = ".";
}
else
if ( !directMap( *p ) && event.xkey.keycode < 0x3F )
{
char ch;
ch = s_keytochar[ event.xkey.keycode ];
if ( ch >= 'a' && ch <= 'z' )
{
unsigned int capital;
XkbGetIndicatorState( dpy, XkbUseCoreKbd, &capital );
capital &= 1;
if ( capital ^ shift )
{
ch = ch - 'a' + 'A';
}
}
else
{
ch = s_keytochar[ event.xkey.keycode | (shift<<6) ];
}
buf[0] = ch;
buf[1] = '\0';
p = buf;
}
}
if (key)
{
Sys_QueEvent( t, SE_KEY, key, qtrue, 0, NULL );
}
while (*p)
{
Sys_QueEvent( t, SE_CHAR, *p++, 0, 0, NULL );
}
break; // case KeyPress
case KeyRelease:
if ( repeated_press( &event ) )
break; // XNextEvent( dpy, &event )
t = Sys_XTimeToSysTime( event.xkey.time );
#if 0
Com_Printf("^5K-^7 %08X %s\n",
event.xkey.keycode,
X11_PendingInput()?"pending":"");
#endif
XLateKey( &event.xkey, &key );
Sys_QueEvent( t, SE_KEY, key, qfalse, 0, NULL );
break; // case KeyRelease
case MotionNotify:
if ( IN_MouseActive() )
{
t = Sys_XTimeToSysTime( event.xkey.time );
#ifdef HAVE_XF86DGA
if ( in_dgamouse->integer )
{
mx += event.xmotion.x_root;
my += event.xmotion.y_root;
if (t - mouseResetTime > MOUSE_RESET_DELAY )
{
Sys_QueEvent( t, SE_MOUSE, mx, my, 0, NULL );
}
mx = my = 0;
}
else
#endif // HAVE_XF86DGA
{
// If it's a center motion, we've just returned from our warp
if ( event.xmotion.x == window_width/2 && event.xmotion.y == window_height/2 )
{
mwx = window_width/2;
mwy = window_height/2;
if ( t - mouseResetTime > MOUSE_RESET_DELAY )
{
Sys_QueEvent( t, SE_MOUSE, mx, my, 0, NULL );
}
mx = my = 0;
break;
}
dx = ((int)event.xmotion.x - mwx);
dy = ((int)event.xmotion.y - mwy);
mx += dx;
my += dy;
mwx = event.xmotion.x;
mwy = event.xmotion.y;
dowarp = qtrue;
} // if ( !in_dgamouse->value )
} // if ( mouse_active )
break;
case ButtonPress:
case ButtonRelease:
if ( !IN_MouseActive() )
break;
if ( event.type == ButtonPress )
btn_press = qtrue;
else
btn_press = qfalse;
t = Sys_XTimeToSysTime( event.xkey.time );
// NOTE TTimo there seems to be a weird mapping for K_MOUSE1 K_MOUSE2 K_MOUSE3 ..
btn_code = -1;
switch ( event.xbutton.button )
{
case 1: btn_code = K_MOUSE1; break;
case 2: btn_code = K_MOUSE3; break;
case 3: btn_code = K_MOUSE2; break;
case 4: Sys_QueEvent( t, SE_KEY, K_MWHEELUP, btn_press, 0, NULL ); break;
case 5: Sys_QueEvent( t, SE_KEY, K_MWHEELDOWN, btn_press, 0, NULL ); break;
case 6: btn_code = K_MOUSE4; break;
case 7: btn_code = K_MOUSE5; break;
case 8: case 9: // K_AUX1..K_AUX8
case 10: case 11:
case 12: case 13:
case 14: case 15:
btn_code = event.xbutton.button - 8 + K_AUX1;
break;
}
if ( btn_code != -1 )
{
Sys_QueEvent( t, SE_KEY, btn_code, btn_press, 0, NULL );
}
break; // case ButtonPress/ButtonRelease
case CreateNotify:
win_x = event.xcreatewindow.x;
win_y = event.xcreatewindow.y;
Com_DPrintf( "CreateNotify: x=%i, y=%i\n", win_x, win_y );
break;
case ConfigureNotify:
gw_minimized = WindowMinimized( dpy, win );
win_x = event.xconfigure.x;
win_y = event.xconfigure.y;
Com_DPrintf( "ConfigureNotify: gw_minimized=%i, created=%i, exposed=%i, x=%i, y=%i\n",
gw_minimized, window_created, window_exposed, win_x, win_y );
if ( !glw_state.cdsFullscreen && window_created && !gw_minimized && window_exposed )
{
unsigned int w, h, border, depth;
Window r;
int x, y;
if ( XGetGeometry( dpy, win, &r, &x, &y, &w, &h, &border, &depth ) ) {
// workaround to compensate constant shift added by window decorations
if ( x < 200 && y < 200 ) {
win_x -= x;
win_y -= y;
}
}
Cvar_SetIntegerValue( "vid_xpos", win_x );
Cvar_SetIntegerValue( "vid_ypos", win_y );
RandR_UpdateMonitor( win_x, win_y,
event.xconfigure.width,
event.xconfigure.height );
}
Key_ClearStates();
break;
case FocusIn:
case FocusOut:
if ( event.type == FocusIn ) {
gw_active = qtrue;
Com_DPrintf( "FocusIn\n" );
} else {
gw_active = qfalse;
Com_DPrintf( "FocusOut\n" );
}
Key_ClearStates();
break;
case Expose:
window_exposed = qtrue;
break;
}
}
if ( dowarp )
{
XWarpPointer( dpy, None, win, 0, 0, 0, 0, window_width/2, window_height/2 );
}
}
// NOTE TTimo for the tty console input, we didn't rely on those ..
// it's not very surprising actually cause they are not used otherwise
void KBD_Init( void )
{
}
void KBD_Close( void )
{
}
/*
================
IN_ActivateMouse
================
*/
void IN_ActivateMouse( void )
{
if ( !mouse_avail || !dpy || !win )
{
return;
}
if ( !mouse_active )
{
if ( in_dgamouse->integer && in_nograb->integer ) // force dga mouse to 0 if using nograb
{
Cvar_Set( "in_dgamouse", "0" );
}
install_mouse_grab();
install_kb_grab();
mouse_active = qtrue;
}
}
/*
================
IN_DeactivateMouse
================
*/
void IN_DeactivateMouse( void )
{
if ( !mouse_avail || !dpy || !win )
{
return;
}
if ( mouse_active )
{
uninstall_mouse_grab();
uninstall_kb_grab();
if ( in_dgamouse->integer && in_nograb->integer ) // force dga mouse to 0 if using nograb
{
Cvar_Set( "in_dgamouse", "0" );
}
mouse_active = qfalse;
}
}
/*
================
IN_MouseActive
================
*/
qboolean IN_MouseActive( void )
{
return ( in_nograb->integer == 0 && mouse_active );
}
/*
================
IN_Minimize
================
*/
void IN_Minimize( void )
{
if ( !CL_VideoRecording() || ( re.CanMinimize && re.CanMinimize() ) )
{
XIconifyWindow( dpy, win, scrnum );
XFlush( dpy );
}
}
qboolean BuildGammaRampTable( unsigned char *red, unsigned char *green, unsigned char *blue, int gammaRampSize, unsigned short table[3][4096] )
{
int i, j;
int m, m1;
int shift;
switch ( gammaRampSize )
{
case 256: shift = 0; break;
case 512: shift = 1; break;
case 1024: shift = 2; break;
case 2048: shift = 3; break;
case 4096: shift = 4; break;
default:
Com_Printf( "Unsupported gamma ramp size: %d\n", gammaRampSize );
return qfalse;
};
m = gammaRampSize / 256;
m1 = 256 / m;
for ( i = 0; i < 256; i++ ) {
for ( j = 0; j < m; j++ ) {
table[0][i*m+j] = (unsigned short)(red[i] << 8) | (m1 * j) | ( red[i] >> shift );
table[1][i*m+j] = (unsigned short)(green[i] << 8) | (m1 * j) | ( green[i] >> shift );
table[2][i*m+j] = (unsigned short)(blue[i] << 8) | (m1 * j) | ( blue[i] >> shift );
}
}
// enforce constantly increasing
for ( j = 0 ; j < 3 ; j++ ) {
for ( i = 1 ; i < gammaRampSize ; i++ ) {
if ( table[j][i] < table[j][i-1] ) {
table[j][i] = table[j][i-1];
}
}
}
return qtrue;
}
/*****************************************************************************/
/*
** GLimp_SetGamma
**
** This routine should only be called if glConfig.deviceSupportsGamma is TRUE
*/
void GLimp_SetGamma( unsigned char red[256], unsigned char green[256], unsigned char blue[256] )
{
if ( glw_state.randr_gamma )
{
RandR_SetGamma( red, green, blue );
return;
}
if ( glw_state.vidmode_gamma )
{
VidMode_SetGamma( red, green, blue );
return;
}
}
#ifdef USE_OPENGL_API
/*
** GLimp_Shutdown
**
** This routine does all OS specific shutdown procedures for the OpenGL
** subsystem. Under OpenGL this means NULLing out the current DC and
** HGLRC, deleting the rendering context, and releasing the DC acquired
** for the window. The state structure is also nulled out.
**
*/
void GLimp_Shutdown( qboolean unloadDLL )
{
IN_DeactivateMouse();
IN_Shutdown();
if ( dpy )
{
XSync( dpy, True );
if ( glw_state.randr_gamma && glw_state.gammaSet )
{
RandR_RestoreGamma();
glw_state.gammaSet = qfalse;
}
RandR_RestoreMode();
if ( ctx )
{
qglXMakeCurrent( dpy, None, NULL );
qglXDestroyContext( dpy, ctx );
ctx = NULL;
}
if ( win )
{
XDestroyWindow( dpy, win );
win = 0;
}
if ( glw_state.gammaSet )
{
VidMode_RestoreGamma();
glw_state.gammaSet = qfalse;
}
if ( glw_state.vidmode_active )
VidMode_RestoreMode();
XSync( dpy, False );
// NOTE TTimo opening/closing the display should be necessary only once per run
// but it seems QGL_Shutdown gets called in a lot of occasion
// in some cases, this XCloseDisplay is known to raise some X errors
// ( https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=33 )
if ( unloadDLL )
{
XCloseDisplay( dpy );
dpy = NULL;
}
}
if ( unloadDLL )
{
RandR_Done();
VidMode_Done();
}
glw_state.desktop_ok = qfalse;
glw_state.cdsFullscreen = qfalse;
unsetenv( "vblank_mode" );
QGL_Shutdown( unloadDLL );
}
#endif // USE_OPENGL_API
#ifdef USE_VULKAN_API
/*
** VKimp_Shutdown
*/
void VKimp_Shutdown( qboolean unloadDLL )
{
IN_DeactivateMouse();
IN_Shutdown();
if ( dpy )
{
XSync( dpy, True );
if ( glw_state.randr_gamma && glw_state.gammaSet )
{
RandR_RestoreGamma();
glw_state.gammaSet = qfalse;
}
RandR_RestoreMode();
if ( win )
{
XDestroyWindow( dpy, win );
win = 0;
}
if ( glw_state.gammaSet )
{
VidMode_RestoreGamma();
glw_state.gammaSet = qfalse;
}
if ( glw_state.vidmode_active )
VidMode_RestoreMode();
XSync( dpy, False );
// NOTE TTimo opening/closing the display should be necessary only once per run
// but it seems QGL_Shutdown gets called in a lot of occasion
// in some cases, this XCloseDisplay is known to raise some X errors
// ( https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=33 )
if ( unloadDLL )
{
XCloseDisplay( dpy );
dpy = NULL;
}
}
if ( unloadDLL )
{
RandR_Done();
VidMode_Done();
}
glw_state.desktop_ok = qfalse;
glw_state.cdsFullscreen = qfalse;
unsetenv( "vblank_mode" );
QVK_Shutdown( unloadDLL );
}
#endif // USE_VULKAN_API
/*
** GLimp_LogComment
*/
void GLimp_LogComment( const char *comment )
{
if ( glw_state.log_fp )
{
fprintf( glw_state.log_fp, "%s", comment );
}
}
/*
** GLW_StartDriverAndSetMode
*/
int GLW_SetMode( int mode, const char *modeFS, qboolean fullscreen, qboolean vulkan );
static rserr_t GLW_StartDriverAndSetMode( int mode, const char *modeFS, qboolean fullscreen, qboolean vulkan )
{
rserr_t err;
if ( fullscreen && in_nograb->integer )
{
Com_Printf( "Fullscreen not allowed with in_nograb 1\n");
Cvar_Set( "r_fullscreen", "0" );
r_fullscreen->modified = qfalse;
fullscreen = qfalse;
}
err = GLW_SetMode( mode, modeFS, fullscreen, vulkan );
switch ( err )
{
case RSERR_INVALID_FULLSCREEN:
Com_Printf( "...WARNING: fullscreen unavailable in this mode\n" );
return err;
case RSERR_INVALID_MODE:
Com_Printf( "...WARNING: could not set the given mode (%d)\n", mode );
return err;
case RSERR_FATAL_ERROR:
Com_Printf( "...WARNING: couldn't open the X display\n" );
return err;
default:
break;
}
glw_state.config->isFullscreen = fullscreen;
return RSERR_OK;
}
#ifdef USE_OPENGL_API
static XVisualInfo *GL_SelectVisual( int colorbits, int depthbits, int stencilbits, glconfig_t *config )
{
// these match in the array
#define ATTR_RED_IDX 2
#define ATTR_GREEN_IDX 4
#define ATTR_BLUE_IDX 6
#define ATTR_DEPTH_IDX 9
#define ATTR_STENCIL_IDX 11
static int attrib[] =
{
GLX_RGBA, // 0
GLX_RED_SIZE, 4, // 1, 2
GLX_GREEN_SIZE, 4, // 3, 4
GLX_BLUE_SIZE, 4, // 5, 6
GLX_DOUBLEBUFFER, // 7
GLX_DEPTH_SIZE, 1, // 8, 9
GLX_STENCIL_SIZE, 1, // 10, 11
None
};
int tcolorbits, tdepthbits, tstencilbits, i;
XVisualInfo *visinfo = NULL;
for ( i = 0; i < 16; i++ )
{
// 0 - default
// 1 - minus colorbits
// 2 - minus depthbits
// 3 - minus stencil
if ( (i % 4) == 0 && i )
{
// one pass, reduce
switch (i / 4)
{
case 2 :
if ( colorbits == 24 )
colorbits = 16;
break;
case 1 :
if ( depthbits == 24 )
depthbits = 16;
else if ( depthbits == 16 )
depthbits = 8;
case 3 :
if ( stencilbits == 24 )
stencilbits = 16;
else if ( stencilbits == 16 )
stencilbits = 8;
}
}
tcolorbits = colorbits;
tdepthbits = depthbits;
tstencilbits = stencilbits;
if ( (i % 4) == 3 )
{ // reduce colorbits
if ( tcolorbits == 24 )
tcolorbits = 16;
}
if ( (i % 4) == 2 )
{ // reduce depthbits
if ( tdepthbits == 24 )
tdepthbits = 16;
else if ( tdepthbits == 16 )
tdepthbits = 8;
}
if ((i % 4) == 1)
{ // reduce stencilbits
if ( tstencilbits == 24 )
tstencilbits = 16;
else if ( tstencilbits == 16 )
tstencilbits = 8;
else
tstencilbits = 0;
}
if (tcolorbits == 24)
{
attrib[ATTR_RED_IDX] = 8;
attrib[ATTR_GREEN_IDX] = 8;
attrib[ATTR_BLUE_IDX] = 8;
}
else
{
// must be 16 bit
attrib[ATTR_RED_IDX] = 4;
attrib[ATTR_GREEN_IDX] = 4;
attrib[ATTR_BLUE_IDX] = 4;
}
attrib[ATTR_DEPTH_IDX] = tdepthbits; // default to 24 depth
attrib[ATTR_STENCIL_IDX] = tstencilbits;
visinfo = qglXChooseVisual( dpy, scrnum, attrib );
if ( !visinfo )
continue;
Com_Printf( "Using %d/%d/%d Color bits, %d depth, %d stencil display.\n",
attrib[ATTR_RED_IDX], attrib[ATTR_GREEN_IDX], attrib[ATTR_BLUE_IDX],
attrib[ATTR_DEPTH_IDX], attrib[ATTR_STENCIL_IDX]);
config->colorBits = tcolorbits;
config->depthBits = tdepthbits;
config->stencilBits = tstencilbits;
break;
}
return visinfo;
}
#endif // USE_OPENGL_API
#ifdef USE_VULKAN_API
static XVisualInfo *VK_SelectVisual( int colorbits, int depthbits, int stencilbits, glconfig_t *config )
{
static XVisualInfo visinfo;
XVisualInfo template;
XVisualInfo *list;
int i, nvisuals;
template.screen = scrnum;
list = XGetVisualInfo( dpy, VisualScreenMask, &template, &nvisuals );
for ( i = 0; i < nvisuals; i++ )
{
#if 0
printf(" %3d: screen %i visual 0x%lx class %d (%s) depth %d bits_per_rgb %d\n",
i,
list[i].screen,
list[i].visualid,
list[i].class,
list[i].class == TrueColor ? "TrueColor" : "unknown",
list[i].depth,
list[i].bits_per_rgb );
#endif
if ( list[i].depth == colorbits ) {
//if ( list[i] == TrueColor )
break;
}
}
if ( i != nvisuals )
{
memcpy( &visinfo, &list[i], sizeof( visinfo ) );
}
config->colorBits = colorbits;
config->depthBits = depthbits;
config->stencilBits = stencilbits;
XFree( list );
// return NULL; // debug
if ( i == nvisuals )
return NULL;
else
return &visinfo;
// for ( ;; ) {
// if ( XMatchVisualInfo( dpy, scrnum, colorbits, &vinfo ) )
// {
//
// }
// }
}
#endif
/*
** GLW_SetMode
*/
int GLW_SetMode( int mode, const char *modeFS, qboolean fullscreen, qboolean vulkan )
{
glconfig_t *config = glw_state.config;
Window root;
XVisualInfo *visinfo = NULL;
XSetWindowAttributes attr;
XSizeHints sizehints;
unsigned long mask;
int colorbits, depthbits, stencilbits;
int actualWidth, actualHeight, actualRate;
window_width = 0;
window_height = 0;
window_created = qfalse;
glw_state.dga_ext = qfalse;
glw_state.randr_ext = qfalse;
glw_state.vidmode_ext = qfalse;
if ( dpy == NULL )
{
dpy = XOpenDisplay( NULL );
if ( dpy == NULL )
{
fprintf( stderr, "Error: couldn't open the X display\n" );
return RSERR_FATAL_ERROR;
}
}
//XSync( dpy, True );
scrnum = DefaultScreen( dpy );
root = RootWindow( dpy, scrnum );
// Init xrandr and get desktop resolution if available
RandR_Init( vid_xpos->integer, vid_ypos->integer, 640, 480 );
if ( !glw_state.randr_ext )
{
VidMode_Init();
}
XSync( dpy, False );
#ifdef HAVE_XF86DGA
if ( in_dgamouse && in_dgamouse->integer )
{
if ( !DGA_Init( dpy ) )
{
Cvar_Set( "in_dgamouse", "0" );
}
}
#endif
Com_Printf( "Initializing display\n" );
Com_Printf( "...setting mode %d:", mode );
if ( !CL_GetModeInfo( &config->vidWidth, &config->vidHeight, &config->windowAspect,
mode, modeFS, glw_state.desktop_width, glw_state.desktop_height, fullscreen ) )
{
Com_Printf( " invalid mode\n" );
return RSERR_INVALID_MODE;
}
actualWidth = config->vidWidth;
actualHeight = config->vidHeight;
actualRate = r_displayRefresh->integer;
if ( actualRate )
Com_Printf( " %d %d @%iHz\n", actualWidth, actualHeight, actualRate );
else
Com_Printf( " %d %d\n", actualWidth, actualHeight );
if ( glw_state.randr_ext ) // try randr first
{
if ( fullscreen )
RandR_SetMode( &actualWidth, &actualHeight, &actualRate );
else
glw_state.randr_active = qtrue;
}
if ( glw_state.vidmode_ext && !glw_state.randr_active )
{
if ( fullscreen )
VidMode_SetMode( &actualWidth, &actualHeight, &actualRate );
else
Com_Printf( "XFree86-VidModeExtension: Ignored on non-fullscreen\n" );
}
colorbits = r_colorbits->integer;
if ( colorbits == 0 || colorbits > 24 )
colorbits = 24;
if ( cl_depthbits->integer == 0 )
{
// implicitly assume Z-buffer depth == desktop color depth
if ( colorbits > 16 )
depthbits = 24;
else
depthbits = 16;
}
else
depthbits = cl_depthbits->integer;
stencilbits = cl_stencilbits->integer;
// do not allow stencil if Z-buffer depth likely won't contain it
if ( depthbits < 24 )
stencilbits = 0;
#ifdef USE_VULKAN_API
if ( vulkan )
visinfo = VK_SelectVisual( colorbits, depthbits, stencilbits, config );
#endif
#ifdef USE_OPENGL_API
if ( !vulkan )
visinfo = GL_SelectVisual( colorbits, depthbits, stencilbits, config );
#endif
if ( !visinfo )
{
Com_Printf( "Couldn't get a visual\n" );
return RSERR_INVALID_MODE;
}
window_width = actualWidth;
window_height = actualHeight;
glw_state.cdsFullscreen = fullscreen;
/* window attributes */
memset( &attr, 0, sizeof( attr ) );
attr.background_pixel = BlackPixel( dpy, scrnum );
attr.border_pixel = 0;
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone );
attr.event_mask = X_MASK;
if ( fullscreen )
{
mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore |
CWEventMask | CWOverrideRedirect;
attr.override_redirect = True;
attr.backing_store = NotUseful;
attr.save_under = False;
}
else
{
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
}
window_exposed = qfalse;
window_created = qfalse;
gw_active = qfalse;
gw_minimized = qfalse; /* safe default */
win = XCreateWindow( dpy, root, 0, 0, actualWidth, actualHeight,
0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr );
motifWMHints = XInternAtom( dpy, "_MOTIF_WM_HINTS", True );
if ( motifWMHints != None )
{
motifHints_t decohint;
decohint.flags = (1L << 1);
decohint.functions = 0;
decohint.decorations = r_noborder->integer ? 0 : 1;
decohint.input_mode = decohint.status = 0;
XChangeProperty( dpy, win, motifWMHints, motifWMHints, 32,
PropModeReplace, (unsigned char*)& decohint,
sizeof(decohint) / sizeof(long) );
}
XStoreName( dpy, win, cl_title );
/* GH: Don't let the window be resized */
sizehints.flags = PMinSize | PMaxSize;
sizehints.min_width = sizehints.max_width = actualWidth;
sizehints.min_height = sizehints.max_height = actualHeight;
XSetWMNormalHints( dpy, win, &sizehints );
XMapWindow( dpy, win );
wmDeleteEvent = XInternAtom( dpy, "WM_DELETE_WINDOW", True );
if ( wmDeleteEvent == BadValue )
wmDeleteEvent = None;
if ( wmDeleteEvent != None )
XSetWMProtocols( dpy, win, &wmDeleteEvent, 1 );
window_created = qtrue;
if ( fullscreen )
{
if ( glw_state.randr_active || glw_state.vidmode_active )
XMoveWindow( dpy, win, glw_state.desktop_x, glw_state.desktop_y );
}
else
{
XMoveWindow( dpy, win, vid_xpos->integer, vid_ypos->integer );
}
// XSync( dpy, False );
// create rendering context
#ifdef USE_OPENGL_API
if ( !vulkan )
{
ctx = qglXCreateContext( dpy, visinfo, NULL, True );
if ( ctx == NULL )
{
Com_Error( ERR_FATAL, "Error creating GLX context" );
}
/* GH: Free the visinfo after we're done with it */
XFree( visinfo );
if ( !qglXMakeCurrent( dpy, win, ctx ) )
{
Com_Error( ERR_FATAL, "Error setting GLX context" );
}
}
else
{
// nothing to do
}
#endif
Key_ClearStates();
if ( fullscreen )
{
XSetInputFocus( dpy, win, RevertToParent, CurrentTime );
}
// XSync( dpy, False );
while ( window_exposed == qfalse )
{
HandleEvents();
}
return RSERR_OK;
}
void GLimp_InitGamma( glconfig_t *config )
{
config->deviceSupportsGamma = qfalse;
if ( glw_state.randr_gamma )
{
Com_Printf( "...using xrandr gamma extension\n" );
config->deviceSupportsGamma = qtrue;
return;
}
if ( glw_state.vidmode_gamma )
{
Com_Printf( "...using vidmode gamma extension\n" );
config->deviceSupportsGamma = qtrue;
return;
}
}
/*
** XErrorHandler
** the default X error handler exits the application
** I found out that on some hosts some operations would raise X errors (GLXUnsupportedPrivateRequest)
** but those don't seem to be fatal .. so the default would be to just ignore them
** our implementation mimics the default handler behaviour (not completely cause I'm lazy)
*/
static int qXErrorHandler( Display *dpy, XErrorEvent *ev )
{
static char buf[1024];
XGetErrorText( dpy, ev->error_code, buf, sizeof( buf ) );
Com_Printf( "X Error of failed request: %s\n", buf) ;
Com_Printf( " Major opcode of failed request: %d\n", ev->request_code );
Com_Printf( " Minor opcode of failed request: %d\n", ev->minor_code );
Com_Printf( " Serial number of failed request: %d\n", (int)ev->serial );
#ifdef DEBUG
raise( SIGABRT );
#endif
return 0;
}
static void InitCvars( void )
{
// referenced in GLW_StartDriverAndSetMode() so must be inited there
in_nograb = Cvar_Get( "in_nograb", "0", 0 );
Cvar_SetDescription( in_nograb, "Do not capture mouse in game, may be useful during online streaming." );
// turn on-off sub-frame timing of X events, referenced in Sys_XTimeToSysTime
in_subframe = Cvar_Get( "in_subframe", "1", CVAR_ARCHIVE_ND );
Cvar_SetDescription( in_subframe, "Toggle X sub-frame event handling." );
in_dgamouse = Cvar_Get( "in_dgamouse", "1", CVAR_ARCHIVE_ND );
Cvar_SetDescription( in_dgamouse, "DGA Mouse support." );
in_shiftedKeys = Cvar_Get( "in_shiftedKeys", "0", CVAR_ARCHIVE_ND );
in_forceCharset = Cvar_Get( "in_forceCharset", "1", CVAR_ARCHIVE_ND );
Cvar_SetDescription( in_forceCharset, "Try to translate non-ASCII chars in keyboard input or force EN/US keyboard layout." );
}
#ifdef USE_OPENGL_API
/*
** GLW_LoadOpenGL
**
** GLimp_win.c internal function that that attempts to load and use
** a specific OpenGL DLL.
*/
static qboolean GLW_LoadOpenGL( const char *name )
{
qboolean fullscreen;
if ( r_swapInterval->integer )
setenv( "vblank_mode", "2", 1 );
else
setenv( "vblank_mode", "1", 1 );
// load the QGL layer
if ( QGL_Init( name ) )
{
rserr_t err;
fullscreen = (r_fullscreen->integer != 0);
// create the window and set up the context
err = GLW_StartDriverAndSetMode( r_mode->integer, r_modeFullscreen->string, fullscreen, qfalse /* vulkan */ );
if ( err != RSERR_OK )
{
if ( err == RSERR_FATAL_ERROR )
goto fail;
if ( r_mode->integer != 3 || ( fullscreen && atoi( r_modeFullscreen->string ) != 3 ) )
{
Com_Printf( "Setting \\r_mode %d failed, falling back on \\r_mode %d\n", r_mode->integer, 3 );
if ( GLW_StartDriverAndSetMode( 3, "", fullscreen, qfalse /* vulkan */ ) != RSERR_OK )
{
goto fail;
}
}
else
{
goto fail;
}
}
return qtrue;
}
fail:
QGL_Shutdown( qtrue );
return qfalse;
}
static qboolean GLW_StartOpenGL( void )
{
//
// load and initialize the specific OpenGL driver
//
if ( !GLW_LoadOpenGL( r_glDriver->string ) )
{
if ( Q_stricmp( r_glDriver->string, OPENGL_DRIVER_NAME ) != 0 )
{
// try default driver
if ( GLW_LoadOpenGL( OPENGL_DRIVER_NAME ) )
{
Cvar_Set( "r_glDriver", OPENGL_DRIVER_NAME );
r_glDriver->modified = qfalse;
return qtrue;
}
}
Com_Error( ERR_FATAL, "GLW_StartOpenGL() - could not load OpenGL subsystem\n" );
return qfalse;
}
return qtrue;
}
/*
** GLimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of OpenGL.
*/
void GLimp_Init( glconfig_t *config )
{
InitSig();
// initialize variables that may be referenced during window creation/setup
InitCvars();
// set up our custom error handler for X failures
XSetErrorHandler( &qXErrorHandler );
// feedback to renderer configuration
glw_state.config = config;
// load and initialize the specific OpenGL driver
if ( !GLW_StartOpenGL() )
{
return;
}
// These values force the UI to disable driver selection
config->driverType = GLDRV_ICD;
config->hardwareType = GLHW_GENERIC;
// optional
#define GLE( ret, name, ... ) q##name = GL_GetProcAddress( XSTRING( name ) );
QGL_Swp_PROCS;
#undef GLE
if ( qglXSwapIntervalEXT || qglXSwapIntervalMESA || qglXSwapIntervalSGI )
{
Com_Printf( "...using GLX_EXT_swap_control\n" );
Cvar_SetModified( "r_swapInterval", qtrue ); // force a set next frame
}
else
{
Com_Printf( "...GLX_EXT_swap_control not found\n" );
}
Key_ClearStates();
IN_Init();
}
/*
** GLimp_EndFrame
**
** Responsible for doing a swapbuffers and possibly for other stuff
** as yet to be determined. Probably better not to make this a GLimp
** function and instead do a call to GLimp_SwapBuffers.
*/
void GLimp_EndFrame( void )
{
//
// swapinterval stuff
//
if ( r_swapInterval->modified ) {
r_swapInterval->modified = qfalse;
if ( qglXSwapIntervalEXT ) {
qglXSwapIntervalEXT( dpy, win, r_swapInterval->integer );
} else if ( qglXSwapIntervalMESA ) {
qglXSwapIntervalMESA( r_swapInterval->integer );
} else if ( qglXSwapIntervalSGI ) {
qglXSwapIntervalSGI( r_swapInterval->integer );
}
}
// don't flip if drawing to front buffer
if ( Q_stricmp( cl_drawBuffer->string, "GL_FRONT" ) != 0 )
{
qglXSwapBuffers( dpy, win );
}
}
#endif // USE_OPENGL_API
#ifdef USE_VULKAN_API
/*
** GLW_LoadVulkan
*/
static qboolean GLW_LoadVulkan( void )
{
if ( r_swapInterval->integer )
setenv( "vblank_mode", "2", 1 );
else
setenv( "vblank_mode", "1", 1 );
// load the QVK layer
if ( QVK_Init() )
{
rserr_t err;
qboolean fullscreen = (r_fullscreen->integer != 0);
// create the window and set up the context
err = GLW_StartDriverAndSetMode( r_mode->integer, r_modeFullscreen->string, fullscreen, qtrue /* vulkan */ );
if ( err == RSERR_OK )
{
return qtrue;
}
}
QVK_Shutdown( qtrue );
return qfalse;
}
static qboolean GLW_StartVulkan( void )
{
//
// load and initialize the specific Vulkan driver
//
if ( !GLW_LoadVulkan() )
{
Com_Error( ERR_FATAL, "GLW_StartVulkan() - could not load Vulkan subsystem\n" );
return qfalse;
}
return qtrue;
}
/*
** VKimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of Vulkan.
*/
void VKimp_Init( glconfig_t *config )
{
InitSig();
// initialize variables that may be referenced during window creation/setup
InitCvars();
// set up our custom error handler for X failures
XSetErrorHandler( &qXErrorHandler );
// feedback to renderer configuration
glw_state.config = config;
// load and initialize the specific Vulkan driver
if ( !GLW_StartVulkan() )
{
return;
}
// These values force the UI to disable driver selection
config->driverType = GLDRV_ICD;
config->hardwareType = GLHW_GENERIC;
Key_ClearStates();
IN_Init();
}
#endif // USE_VULKAN_API
/*****************************************************************************/
/* MOUSE */
/*****************************************************************************/
void IN_Restart_f( void );
void IN_Init( void )
{
Com_DPrintf( "\n------- Input Initialization -------\n" );
// mouse variables
in_mouse = Cvar_Get( "in_mouse", "1", CVAR_ARCHIVE );
Cvar_SetDescription( in_mouse,
"Mouse data input source:\n" \
" 0 - disable mouse input\n" \
" 1 - enable mouse input" );
if ( in_mouse->integer )
{
mouse_avail = qtrue;
}
else
{
mouse_avail = qfalse;
}
#ifdef USE_JOYSTICK
// bk001130 - from cvs.17 (mkv), joystick variables
in_joystick = Cvar_Get( "in_joystick", "0", CVAR_ARCHIVE_ND | CVAR_LATCH );
Cvar_SetDescription( in_joystick, "Whether or not joystick support is on." );
// bk001130 - changed this to match win32
in_joystickDebug = Cvar_Get( "in_debugjoystick", "0", CVAR_TEMP );
joy_threshold = Cvar_Get( "joy_threshold", "0.15", CVAR_ARCHIVE_ND ); // FIXME: in_joythreshold
Cvar_SetDescription( joy_threshold, "Threshold of joystick moving distance." );
IN_StartupJoystick(); // bk001130 - from cvs1.17 (mkv)
#endif
Cmd_AddCommand( "minimize", IN_Minimize );
Cmd_AddCommand( "in_restart", IN_Restart_f );
Com_DPrintf( "------------------------------------\n" );
}
void IN_Shutdown( void )
{
mouse_avail = qfalse;
Cmd_RemoveCommand( "minimize" );
Cmd_RemoveCommand( "in_restart" );
}
/*
=================
IM_Restart
Restart the input subsystem
=================
*/
void IN_Restart_f( void )
{
IN_Shutdown();
IN_Init();
}
void IN_Frame( void )
{
#ifdef USE_JOYSTICK
IN_JoyMove();
#endif
if ( Key_GetCatcher() & KEYCATCH_CONSOLE ) {
// temporarily deactivate if not in the game and
// running on the desktop with multimonitor configuration
if ( !glw_state.cdsFullscreen || glw_state.monitorCount > 1 ) {
IN_DeactivateMouse();
return;
}
}
if ( !gw_active || gw_minimized || in_nograb->integer ) {
IN_DeactivateMouse();
return;
}
IN_ActivateMouse();
}
/*
=================
Sys_GetClipboardData
=================
*/
char *Sys_GetClipboardData( void )
{
const Atom xtarget = XInternAtom( dpy, "UTF8_STRING", 0 );
unsigned long nitems, rem;
unsigned char *data;
Atom type;
XEvent ev;
char *buf;
int format;
XConvertSelection( dpy, XA_PRIMARY, xtarget, XA_PRIMARY, win, CurrentTime );
XSync( dpy, False );
XNextEvent( dpy, &ev );
if ( !XFilterEvent( &ev, None ) && ev.type == SelectionNotify ) {
if ( XGetWindowProperty( dpy, win, XA_PRIMARY, 0, MAX_EDIT_LINE/4, False, AnyPropertyType,
&type, &format, &nitems, &rem, &data ) == 0 ) {
if ( format == 8 ) {
if ( nitems > 0 ) {
buf = Z_Malloc( nitems + 1 );
Q_strncpyz( buf, (char*)data, nitems + 1 );
strtok( buf, "\n\r\b" );
return buf;
}
} else {
fprintf( stderr, "Bad clipboard format %i\n", format );
}
} else {
fprintf( stderr, "Clipboard allocation failed\n" );
}
}
return NULL;
}
/*
=================
Sys_SetClipboardBitmap
=================
*/
void Sys_SetClipboardBitmap( const byte *bitmap, int length )
{
// TODO: implement
}
#ifdef USE_JOYSTICK
// bk010216 - added stubs for non-Linux UNIXes here
// FIXME - use NO_JOYSTICK or something else generic
#if (defined( __FreeBSD__ ) || defined( __sun)) // rb010123
void IN_StartupJoystick( void ) {}
void IN_JoyMove( void ) {}
#endif
#endif
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