* Branch upstream ioq3-r437 into trunk

1 files changed, 1813 insertions, 0 deletions

diff --git a/ioq3-r437/src/unix/linux_glimp.c b/ioq3-r437/src/unix/linux_glimp.c
new file mode 100644
index 00000000..a72c50a7
--- /dev/null
+++ b/ioq3-r437/src/unix/linux_glimp.c
@@ -0,0 +1,1813 @@
+/*
+===========================================================================
+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_SwitchFullscreen
+** GLimp_SetGamma
+**
+*/
+
+#if !USE_SDL_VIDEO
+
+#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>
+
+// bk001204
+#include <dlfcn.h>
+
+// bk001206 - from my Heretic2 by way of Ryan's Fakk2
+// Needed for the new X11_PendingInput() function.
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "../renderer/tr_local.h"
+#include "../client/client.h"
+#include "linux_local.h" // bk001130
+
+#include "unix_glw.h"
+
+#include <GL/glx.h>
+
+#include <X11/keysym.h>
+#include <X11/cursorfont.h>
+
+#if !defined(__sun)
+#include <X11/extensions/xf86dga.h>
+#include <X11/extensions/xf86vmode.h>
+#endif
+
+#if defined(__sun)
+#include <X11/Sunkeysym.h>
+#endif
+
+#ifdef _XF86DGA_H_
+#define HAVE_XF86DGA
+#endif
+
+#define	WINDOW_CLASS_NAME	"Quake III: Arena"
+
+typedef enum
+{
+  RSERR_OK,
+
+  RSERR_INVALID_FULLSCREEN,
+  RSERR_INVALID_MODE,
+
+  RSERR_UNKNOWN
+} rserr_t;
+
+glwstate_t glw_state;
+
+static Display *dpy = NULL;
+static int scrnum;
+static Window win = 0;
+static GLXContext ctx = NULL;
+
+// bk001206 - not needed anymore
+// static qboolean autorepeaton = qtrue;
+
+#define KEY_MASK (KeyPressMask | KeyReleaseMask)
+#define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
+		    PointerMotionMask | ButtonMotionMask )
+#define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
+
+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
+cvar_t *in_subframe;
+cvar_t *in_nograb; // this is strictly for developers
+
+// bk001130 - from cvs1.17 (mkv), but not static
+cvar_t   *in_joystick      = NULL;
+cvar_t   *in_joystickDebug = NULL;
+cvar_t   *joy_threshold    = NULL;
+
+cvar_t  *r_allowSoftwareGL;   // don't abort out if the pixelformat claims software
+cvar_t  *r_previousglDriver;
+
+qboolean vidmode_ext = qfalse;
+#ifdef HAVE_XF86DGA
+static int vidmode_MajorVersion = 0, vidmode_MinorVersion = 0; // major and minor of XF86VidExtensions
+
+// gamma value of the X display before we start playing with it
+static XF86VidModeGamma vidmode_InitialGamma;
+#endif /* HAVE_XF86DGA */
+
+static int win_x, win_y;
+
+#ifdef HAVE_XF86DGA
+static XF86VidModeModeInfo **vidmodes;
+#endif /* HAVE_XF86DGA */
+//static int default_dotclock_vidmode; // bk001204 - unused
+static int num_vidmodes;
+static qboolean vidmode_active = qfalse;
+
+static int mouse_accel_numerator;
+static int mouse_accel_denominator;
+static int mouse_threshold;    
+
+/*
+* Find the first occurrence of find in s.
+*/
+// bk001130 - from cvs1.17 (mkv), const
+// bk001130 - made first argument const
+static const char *Q_stristr( const char *s, const char *find)
+{
+  register char c, sc;
+  register size_t len;
+
+  if ((c = *find++) != 0)
+  {
+    if (c >= 'a' && c <= 'z')
+    {
+      c -= ('a' - 'A');
+    }
+    len = strlen(find);
+    do
+    {
+      do
+      {
+        if ((sc = *s++) == 0)
+          return NULL;
+        if (sc >= 'a' && sc <= 'z')
+        {
+          sc -= ('a' - 'A');
+        }
+      } while (sc != c);
+    } while (Q_stricmpn(s, find, len) != 0);
+    s--;
+  }
+  return s;
+}
+
+/*****************************************************************************
+** 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 char *XLateKey(XKeyEvent *ev, int *key)
+{
+  static char buf[64];
+  KeySym keysym;
+  int XLookupRet;
+
+  *key = 0;
+
+  XLookupRet = XLookupString(ev, buf, sizeof buf, &keysym, 0);
+#ifdef KBD_DBG
+  ri.Printf(PRINT_ALL, "XLookupString ret: %d buf: %s keysym: %x\n", XLookupRet, buf, keysym);
+#endif
+  
+  switch (keysym)
+  {
+  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:    *key = K_KP_DOWNARROW; break;
+  case XK_Down:  *key = K_DOWNARROW; break;
+
+  case XK_KP_Up:   
+  case XK_KP_8:    *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;
+
+    // bk001130 - from cvs1.17 (mkv)
+  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;
+		
+	// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=472
+	case XK_space:
+	case XK_KP_Space: *key = K_SPACE; break;
+
+  default:
+    if (XLookupRet == 0)
+    {
+      if (com_developer->value)
+      {
+        ri.Printf(PRINT_ALL, "Warning: XLookupString failed on KeySym %d\n", keysym);
+      }
+      return NULL;
+    }
+    else
+    {
+      // XK_* tests failed, but XLookupString got a buffer, so let's try it
+      *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;
+    }
+    break;
+  } 
+
+  return 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_grabs(void)
+{
+  // inviso cursor
+  XWarpPointer(dpy, None, win,
+               0, 0, 0, 0,
+               glConfig.vidWidth / 2, glConfig.vidHeight / 2);
+  XSync(dpy, False);
+
+  XDefineCursor(dpy, win, CreateNullCursor(dpy, win));
+
+  XGrabPointer(dpy, win, // bk010108 - do this earlier?
+               False,
+               MOUSE_MASK,
+               GrabModeAsync, GrabModeAsync,
+               win,
+               None,
+               CurrentTime);
+
+  XGetPointerControl(dpy, &mouse_accel_numerator, &mouse_accel_denominator,
+                     &mouse_threshold);
+
+  XChangePointerControl(dpy, True, True, 1, 1, 0);
+
+  XSync(dpy, False);
+
+  mouseResetTime = Sys_Milliseconds ();
+
+#ifdef HAVE_XF86DGA
+  if (in_dgamouse->value)
+  {
+    int MajorVersion, MinorVersion;
+
+    if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion))
+    {
+      // unable to query, probalby not supported, force the setting to 0
+      ri.Printf( PRINT_ALL, "Failed to detect XF86DGA Mouse\n" );
+      ri.Cvar_Set( "in_dgamouse", "0" );
+    } else
+    {
+      XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
+      XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
+    }
+  } else
+#endif /* HAVE_XF86DGA */
+  {
+    mwx = glConfig.vidWidth / 2;
+    mwy = glConfig.vidHeight / 2;
+    mx = my = 0;
+  }
+
+  XGrabKeyboard(dpy, win,
+                False,
+                GrabModeAsync, GrabModeAsync,
+                CurrentTime);
+
+  XSync(dpy, False);
+}
+
+static void uninstall_grabs(void)
+{
+#ifdef HAVE_XF86DGA
+  if (in_dgamouse->value)
+  {
+		if (com_developer->value)
+			ri.Printf( PRINT_ALL, "DGA Mouse - Disabling DGA DirectVideo\n" );
+    XF86DGADirectVideo(dpy, DefaultScreen(dpy), 0);
+  }
+#endif /* HAVE_XF86DGA */
+
+  XChangePointerControl(dpy, qtrue, qtrue, mouse_accel_numerator, 
+                        mouse_accel_denominator, mouse_threshold);
+
+  XUngrabPointer(dpy, CurrentTime);
+  XUngrabKeyboard(dpy, CurrentTime);
+
+  XWarpPointer(dpy, None, win,
+               0, 0, 0, 0,
+               glConfig.vidWidth / 2, glConfig.vidHeight / 2);
+
+  // inviso cursor
+  XUndefineCursor(dpy, win);
+}
+
+// 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;
+}
+
+// bk001206 - from Ryan's Fakk2. See above.
+static qboolean repeated_press(XEvent *event)
+{
+  XEvent        peekevent;
+  qboolean      repeated = qfalse;
+
+  assert(dpy != NULL);
+
+  if (X11_PendingInput())
+  {
+    XPeekEvent(dpy, &peekevent);
+
+    if ((peekevent.type == KeyPress) &&
+        (peekevent.xkey.keycode == event->xkey.keycode) &&
+        (peekevent.xkey.time == event->xkey.time))
+    {
+      repeated = qtrue;
+      XNextEvent(dpy, &peekevent);  // skip event.
+    } // if
+  } // if
+
+  return(repeated);
+} // repeated_press
+
+int Sys_XTimeToSysTime (Time xtime);
+static void HandleEvents(void)
+{
+  int b;
+  int key;
+  XEvent event;
+  qboolean dowarp = qfalse;
+  char *p;
+  int dx, dy;
+  int t = 0; // default to 0 in case we don't set
+	
+  if (!dpy)
+    return;
+
+  while (XPending(dpy))
+  {
+    XNextEvent(dpy, &event);
+    switch (event.type)
+    {
+    case KeyPress:
+			t = Sys_XTimeToSysTime(event.xkey.time);
+      p = XLateKey(&event.xkey, &key);
+      if (key)
+      {
+        Sys_QueEvent( t, SE_KEY, key, qtrue, 0, NULL );
+      }
+      if (p)
+      {
+        while (*p)
+        {
+          Sys_QueEvent( t, SE_CHAR, *p++, 0, 0, NULL );
+        }
+      }
+      break;
+
+    case KeyRelease:
+			t = Sys_XTimeToSysTime(event.xkey.time);
+      // bk001206 - handle key repeat w/o XAutRepatOn/Off
+      //            also: not done if console/menu is active.
+      // From Ryan's Fakk2.
+      // see game/q_shared.h, KEYCATCH_* . 0 == in 3d game.  
+      if (cls.keyCatchers == 0)
+      {   // FIXME: KEYCATCH_NONE
+        if (repeated_press(&event) == qtrue)
+          continue;
+      } // if
+      XLateKey(&event.xkey, &key);
+
+      Sys_QueEvent( t, SE_KEY, key, qfalse, 0, NULL );
+      break;
+
+    case MotionNotify:
+			t = Sys_XTimeToSysTime(event.xkey.time);
+      if (mouse_active)
+      {
+#ifdef HAVE_XF86DGA
+        if (in_dgamouse->value)
+        {
+          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 == glConfig.vidWidth/2 &&
+              event.xmotion.y == glConfig.vidHeight/2)
+          {
+            mwx = glConfig.vidWidth/2;
+            mwy = glConfig.vidHeight/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;
+        }
+      }
+      break;
+
+    case ButtonPress:
+		  t = Sys_XTimeToSysTime(event.xkey.time);
+      if (event.xbutton.button == 4)
+      {
+        Sys_QueEvent( t, SE_KEY, K_MWHEELUP, qtrue, 0, NULL );
+      } else if (event.xbutton.button == 5)
+      {
+        Sys_QueEvent( t, SE_KEY, K_MWHEELDOWN, qtrue, 0, NULL );
+      } else
+      {
+        // NOTE TTimo there seems to be a weird mapping for K_MOUSE1 K_MOUSE2 K_MOUSE3 ..
+        b=-1;
+        if (event.xbutton.button == 1)
+        {
+          b = 0; // K_MOUSE1
+        } else if (event.xbutton.button == 2)
+        {
+          b = 2; // K_MOUSE3
+        } else if (event.xbutton.button == 3)
+        {
+          b = 1; // K_MOUSE2
+        } else if (event.xbutton.button == 6)
+        {
+          b = 3; // K_MOUSE4
+        } else if (event.xbutton.button == 7)
+        {
+          b = 4; // K_MOUSE5
+        };
+
+        Sys_QueEvent( t, SE_KEY, K_MOUSE1 + b, qtrue, 0, NULL );
+      }
+      break;
+
+    case ButtonRelease:
+		  t = Sys_XTimeToSysTime(event.xkey.time);
+      if (event.xbutton.button == 4)
+      {
+        Sys_QueEvent( t, SE_KEY, K_MWHEELUP, qfalse, 0, NULL );
+      } else if (event.xbutton.button == 5)
+      {
+        Sys_QueEvent( t, SE_KEY, K_MWHEELDOWN, qfalse, 0, NULL );
+      } else
+      {
+        b=-1;
+        if (event.xbutton.button == 1)
+        {
+          b = 0;
+        } else if (event.xbutton.button == 2)
+        {
+          b = 2;
+        } else if (event.xbutton.button == 3)
+        {
+          b = 1;
+        } else if (event.xbutton.button == 6)
+        {
+          b = 3; // K_MOUSE4
+        } else if (event.xbutton.button == 7)
+        {
+          b = 4; // K_MOUSE5
+        };
+        Sys_QueEvent( t, SE_KEY, K_MOUSE1 + b, qfalse, 0, NULL );
+      }
+      break;
+
+    case CreateNotify :
+      win_x = event.xcreatewindow.x;
+      win_y = event.xcreatewindow.y;
+      break;
+
+    case ConfigureNotify :
+      win_x = event.xconfigure.x;
+      win_y = event.xconfigure.y;
+      break;
+    }
+  }
+
+  if (dowarp)
+  {
+    XWarpPointer(dpy,None,win,0,0,0,0, 
+                 (glConfig.vidWidth/2),(glConfig.vidHeight/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)
+{
+}
+
+void IN_ActivateMouse( void ) 
+{
+  if (!mouse_avail || !dpy || !win)
+    return;
+
+  if (!mouse_active)
+  {
+		if (!in_nograb->value)
+      install_grabs();
+		else if (in_dgamouse->value) // force dga mouse to 0 if using nograb
+			ri.Cvar_Set("in_dgamouse", "0");
+    mouse_active = qtrue;
+  }
+}
+
+void IN_DeactivateMouse( void ) 
+{
+  if (!mouse_avail || !dpy || !win)
+    return;
+
+  if (mouse_active)
+  {
+		if (!in_nograb->value)
+      uninstall_grabs();
+		else if (in_dgamouse->value) // force dga mouse to 0 if using nograb
+			ri.Cvar_Set("in_dgamouse", "0");
+    mouse_active = qfalse;
+  }
+}
+/*****************************************************************************/
+
+/*
+** 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] )
+{
+  // NOTE TTimo we get the gamma value from cvar, because we can't work with the s_gammatable
+  //   the API wasn't changed to avoid breaking other OSes
+#ifdef HAVE_XF86DGA
+  float g = Cvar_Get("r_gamma", "1.0", 0)->value;
+  XF86VidModeGamma gamma;
+  assert(glConfig.deviceSupportsGamma);
+  gamma.red = g;
+  gamma.green = g;
+  gamma.blue = g;
+  XF86VidModeSetGamma(dpy, scrnum, &gamma);
+#endif /* HAVE_XF86DGA */
+}
+
+/*
+** 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( void )
+{
+  if (!ctx || !dpy)
+    return;
+  IN_DeactivateMouse();
+  // bk001206 - replaced with H2/Fakk2 solution
+  // XAutoRepeatOn(dpy);
+  // autorepeaton = qfalse; // bk001130 - from cvs1.17 (mkv)
+  if (dpy)
+  {
+    if (ctx)
+      qglXDestroyContext(dpy, ctx);
+    if (win)
+      XDestroyWindow(dpy, win);
+#ifdef HAVE_XF86DGA
+    if (vidmode_active)
+      XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[0]);
+    if (glConfig.deviceSupportsGamma)
+    {
+      XF86VidModeSetGamma(dpy, scrnum, &vidmode_InitialGamma);
+    }
+#endif /* HAVE_XF86DGA */
+    // 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 )
+    XCloseDisplay(dpy);
+  }
+  vidmode_active = qfalse;
+  dpy = NULL;
+  win = 0;
+  ctx = NULL;
+
+  memset( &glConfig, 0, sizeof( glConfig ) );
+  memset( &glState, 0, sizeof( glState ) );
+
+  QGL_Shutdown();
+}
+
+/*
+** GLimp_LogComment
+*/
+void GLimp_LogComment( char *comment ) 
+{
+  if ( glw_state.log_fp )
+  {
+    fprintf( glw_state.log_fp, "%s", comment );
+  }
+}
+
+/*
+** GLW_StartDriverAndSetMode
+*/
+// bk001204 - prototype needed
+int GLW_SetMode( const char *drivername, int mode, qboolean fullscreen );
+static qboolean GLW_StartDriverAndSetMode( const char *drivername, 
+                                           int mode, 
+                                           qboolean fullscreen )
+{
+  rserr_t err;
+
+  // don't ever bother going into fullscreen with a voodoo card
+#if 1	// JDC: I reenabled this
+  if ( Q_stristr( drivername, "Voodoo" ) )
+  {
+    ri.Cvar_Set( "r_fullscreen", "0" );
+    r_fullscreen->modified = qfalse;
+    fullscreen = qfalse;
+  }
+#endif
+	
+	if (fullscreen && in_nograb->value)
+	{
+		ri.Printf( PRINT_ALL, "Fullscreen not allowed with in_nograb 1\n");
+    ri.Cvar_Set( "r_fullscreen", "0" );
+    r_fullscreen->modified = qfalse;
+    fullscreen = qfalse;		
+	}
+
+  err = GLW_SetMode( drivername, mode, fullscreen );
+
+  switch ( err )
+  {
+  case RSERR_INVALID_FULLSCREEN:
+    ri.Printf( PRINT_ALL, "...WARNING: fullscreen unavailable in this mode\n" );
+    return qfalse;
+  case RSERR_INVALID_MODE:
+    ri.Printf( PRINT_ALL, "...WARNING: could not set the given mode (%d)\n", mode );
+    return qfalse;
+  default:
+    break;
+  }
+  return qtrue;
+}
+
+/*
+** GLW_SetMode
+*/
+int GLW_SetMode( const char *drivername, int mode, qboolean fullscreen )
+{
+  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
+  };
+  // 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
+  Window root;
+  XVisualInfo *visinfo;
+  XSetWindowAttributes attr;
+  XSizeHints sizehints;
+  unsigned long mask;
+  int colorbits, depthbits, stencilbits;
+  int tcolorbits, tdepthbits, tstencilbits;
+  int dga_MajorVersion, dga_MinorVersion;
+  int actualWidth, actualHeight;
+  int i;
+  const char*   glstring; // bk001130 - from cvs1.17 (mkv)
+
+  ri.Printf( PRINT_ALL, "Initializing OpenGL display\n");
+
+  ri.Printf (PRINT_ALL, "...setting mode %d:", mode );
+
+  if ( !R_GetModeInfo( &glConfig.vidWidth, &glConfig.vidHeight, &glConfig.windowAspect, mode ) )
+  {
+    ri.Printf( PRINT_ALL, " invalid mode\n" );
+    return RSERR_INVALID_MODE;
+  }
+  ri.Printf( PRINT_ALL, " %d %d\n", glConfig.vidWidth, glConfig.vidHeight);
+
+  if (!(dpy = XOpenDisplay(NULL)))
+  {
+    fprintf(stderr, "Error couldn't open the X display\n");
+    return RSERR_INVALID_MODE;
+  }
+  
+  scrnum = DefaultScreen(dpy);
+  root = RootWindow(dpy, scrnum);
+
+  actualWidth = glConfig.vidWidth;
+  actualHeight = glConfig.vidHeight;
+
+  // Get video mode list
+#ifdef HAVE_XF86DGA
+  if (!XF86VidModeQueryVersion(dpy, &vidmode_MajorVersion, &vidmode_MinorVersion))
+  {
+#endif /* HAVE_XF86DGA */
+    vidmode_ext = qfalse;
+#ifdef HAVE_XF86DGA
+  } else
+  {
+    ri.Printf(PRINT_ALL, "Using XFree86-VidModeExtension Version %d.%d\n",
+              vidmode_MajorVersion, vidmode_MinorVersion);
+    vidmode_ext = qtrue;
+  }
+#endif /* HAVE_XF86DGA */
+
+  // Check for DGA	
+  dga_MajorVersion = 0, dga_MinorVersion = 0;
+#ifdef HAVE_XF86DGA
+  if (in_dgamouse->value)
+  {
+    if (!XF86DGAQueryVersion(dpy, &dga_MajorVersion, &dga_MinorVersion))
+    {
+      // unable to query, probably not supported
+      ri.Printf( PRINT_ALL, "Failed to detect XF86DGA Mouse\n" );
+      ri.Cvar_Set( "in_dgamouse", "0" );
+    } else
+    {
+      ri.Printf( PRINT_ALL, "XF86DGA Mouse (Version %d.%d) initialized\n",
+                 dga_MajorVersion, dga_MinorVersion);
+    }
+  }
+#endif /* HAVE_XF86DGA */
+
+#ifdef HAVE_XF86DGA
+  if (vidmode_ext)
+  {
+    int best_fit, best_dist, dist, x, y;
+
+    XF86VidModeGetAllModeLines(dpy, scrnum, &num_vidmodes, &vidmodes);
+
+    // Are we going fullscreen?  If so, let's change video mode
+    if (fullscreen)
+    {
+      best_dist = 9999999;
+      best_fit = -1;
+
+      for (i = 0; i < num_vidmodes; i++)
+      {
+        if (glConfig.vidWidth > vidmodes[i]->hdisplay ||
+            glConfig.vidHeight > vidmodes[i]->vdisplay)
+          continue;
+
+        x = glConfig.vidWidth - vidmodes[i]->hdisplay;
+        y = glConfig.vidHeight - vidmodes[i]->vdisplay;
+        dist = (x * x) + (y * y);
+        if (dist < best_dist)
+        {
+          best_dist = dist;
+          best_fit = i;
+        }
+      }
+
+      if (best_fit != -1)
+      {
+        actualWidth = vidmodes[best_fit]->hdisplay;
+        actualHeight = vidmodes[best_fit]->vdisplay;
+
+        // change to the mode
+        XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[best_fit]);
+        vidmode_active = qtrue;
+
+        // Move the viewport to top left
+        XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
+
+        ri.Printf(PRINT_ALL, "XFree86-VidModeExtension Activated at %dx%d\n",
+                  actualWidth, actualHeight);
+
+      } else
+      {
+        fullscreen = 0;
+        ri.Printf(PRINT_ALL, "XFree86-VidModeExtension: No acceptable modes found\n");
+      }
+    } else
+    {
+      ri.Printf(PRINT_ALL, "XFree86-VidModeExtension:  Ignored on non-fullscreen/Voodoo\n");
+    }
+  }
+#endif /* HAVE_XF86DGA */
+
+
+  if (!r_colorbits->value)
+    colorbits = 24;
+  else
+    colorbits = r_colorbits->value;
+
+  if ( !Q_stricmp( r_glDriver->string, _3DFX_DRIVER_NAME ) )
+    colorbits = 16;
+
+  if (!r_depthbits->value)
+    depthbits = 24;
+  else
+    depthbits = r_depthbits->value;
+  stencilbits = r_stencilbits->value;
+
+  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;
+    }
+
+    ri.Printf( PRINT_ALL, "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]);
+
+    glConfig.colorBits = tcolorbits;
+    glConfig.depthBits = tdepthbits;
+    glConfig.stencilBits = tstencilbits;
+    break;
+  }
+
+  if (!visinfo)
+  {
+    ri.Printf( PRINT_ALL, "Couldn't get a visual\n" );
+    return RSERR_INVALID_MODE;
+  }
+
+  /* window attributes */
+  attr.background_pixel = BlackPixel(dpy, scrnum);
+  attr.border_pixel = 0;
+  attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
+  attr.event_mask = X_MASK;
+  if (vidmode_active)
+  {
+    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;
+
+  win = XCreateWindow(dpy, root, 0, 0, 
+                      actualWidth, actualHeight, 
+                      0, visinfo->depth, InputOutput,
+                      visinfo->visual, mask, &attr);
+
+  XStoreName( dpy, win, WINDOW_CLASS_NAME );
+
+  /* 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 );
+
+  if (vidmode_active)
+    XMoveWindow(dpy, win, 0, 0);
+
+  XFlush(dpy);
+  XSync(dpy,False); // bk001130 - from cvs1.17 (mkv)
+  ctx = qglXCreateContext(dpy, visinfo, NULL, True);
+  XSync(dpy,False); // bk001130 - from cvs1.17 (mkv)
+
+  /* GH: Free the visinfo after we're done with it */
+  XFree( visinfo );
+
+  qglXMakeCurrent(dpy, win, ctx);
+
+  // bk001130 - from cvs1.17 (mkv)
+  glstring = qglGetString (GL_RENDERER);
+  ri.Printf( PRINT_ALL, "GL_RENDERER: %s\n", glstring );
+
+  // bk010122 - new software token (Indirect)
+  if ( !Q_stricmp( glstring, "Mesa X11")
+       || !Q_stricmp( glstring, "Mesa GLX Indirect") )
+  {
+    if ( !r_allowSoftwareGL->integer )
+    {
+      ri.Printf( PRINT_ALL, "\n\n***********************************************************\n" );
+      ri.Printf( PRINT_ALL, " You are using software Mesa (no hardware acceleration)!   \n" );
+      ri.Printf( PRINT_ALL, " Driver DLL used: %s\n", drivername ); 
+      ri.Printf( PRINT_ALL, " If this is intentional, add\n" );
+      ri.Printf( PRINT_ALL, "       \"+set r_allowSoftwareGL 1\"\n" );
+      ri.Printf( PRINT_ALL, " to the command line when starting the game.\n" );
+      ri.Printf( PRINT_ALL, "***********************************************************\n");
+      GLimp_Shutdown( );
+      return RSERR_INVALID_MODE;
+    } else
+    {
+      ri.Printf( PRINT_ALL, "...using software Mesa (r_allowSoftwareGL==1).\n" );
+    }
+  }
+
+  return RSERR_OK;
+}
+
+/*
+** GLW_InitExtensions
+*/
+static void GLW_InitExtensions( void )
+{
+  if ( !r_allowExtensions->integer )
+  {
+    ri.Printf( PRINT_ALL, "*** IGNORING OPENGL EXTENSIONS ***\n" );
+    return;
+  }
+
+  ri.Printf( PRINT_ALL, "Initializing OpenGL extensions\n" );
+
+  // GL_S3_s3tc
+  if ( Q_stristr( glConfig.extensions_string, "GL_S3_s3tc" ) )
+  {
+    if ( r_ext_compressed_textures->value )
+    {
+      glConfig.textureCompression = TC_S3TC;
+      ri.Printf( PRINT_ALL, "...using GL_S3_s3tc\n" );
+    } else
+    {
+      glConfig.textureCompression = TC_NONE;
+      ri.Printf( PRINT_ALL, "...ignoring GL_S3_s3tc\n" );
+    }
+  } else
+  {
+    glConfig.textureCompression = TC_NONE;
+    ri.Printf( PRINT_ALL, "...GL_S3_s3tc not found\n" );
+  }
+
+  // GL_EXT_texture_env_add
+  glConfig.textureEnvAddAvailable = qfalse;
+  if ( Q_stristr( glConfig.extensions_string, "EXT_texture_env_add" ) )
+  {
+    if ( r_ext_texture_env_add->integer )
+    {
+      glConfig.textureEnvAddAvailable = qtrue;
+      ri.Printf( PRINT_ALL, "...using GL_EXT_texture_env_add\n" );
+    } else
+    {
+      glConfig.textureEnvAddAvailable = qfalse;
+      ri.Printf( PRINT_ALL, "...ignoring GL_EXT_texture_env_add\n" );
+    }
+  } else
+  {
+    ri.Printf( PRINT_ALL, "...GL_EXT_texture_env_add not found\n" );
+  }
+
+  // GL_ARB_multitexture
+  qglMultiTexCoord2fARB = NULL;
+  qglActiveTextureARB = NULL;
+  qglClientActiveTextureARB = NULL;
+  if ( Q_stristr( glConfig.extensions_string, "GL_ARB_multitexture" ) )
+  {
+    if ( r_ext_multitexture->value )
+    {
+      qglMultiTexCoord2fARB = ( PFNGLMULTITEXCOORD2FARBPROC ) dlsym( glw_state.OpenGLLib, "glMultiTexCoord2fARB" );
+      qglActiveTextureARB = ( PFNGLACTIVETEXTUREARBPROC ) dlsym( glw_state.OpenGLLib, "glActiveTextureARB" );
+      qglClientActiveTextureARB = ( PFNGLCLIENTACTIVETEXTUREARBPROC ) dlsym( glw_state.OpenGLLib, "glClientActiveTextureARB" );
+
+      if ( qglActiveTextureARB )
+      {
+        GLint glint = 0;
+        qglGetIntegerv( GL_MAX_ACTIVE_TEXTURES_ARB, &glint );
+        glConfig.maxActiveTextures = (int) glint;
+
+        if ( glConfig.maxActiveTextures > 1 )
+        {
+          ri.Printf( PRINT_ALL, "...using GL_ARB_multitexture\n" );
+        } else
+        {
+          qglMultiTexCoord2fARB = NULL;
+          qglActiveTextureARB = NULL;
+          qglClientActiveTextureARB = NULL;
+          ri.Printf( PRINT_ALL, "...not using GL_ARB_multitexture, < 2 texture units\n" );
+        }
+      }
+    } else
+    {
+      ri.Printf( PRINT_ALL, "...ignoring GL_ARB_multitexture\n" );
+    }
+  } else
+  {
+    ri.Printf( PRINT_ALL, "...GL_ARB_multitexture not found\n" );
+  }
+
+  // GL_EXT_compiled_vertex_array
+  if ( Q_stristr( glConfig.extensions_string, "GL_EXT_compiled_vertex_array" ) )
+  {
+    if ( r_ext_compiled_vertex_array->value )
+    {
+      ri.Printf( PRINT_ALL, "...using GL_EXT_compiled_vertex_array\n" );
+      qglLockArraysEXT = ( void ( APIENTRY * )( int, int ) ) dlsym( glw_state.OpenGLLib, "glLockArraysEXT" );
+      qglUnlockArraysEXT = ( void ( APIENTRY * )( void ) ) dlsym( glw_state.OpenGLLib, "glUnlockArraysEXT" );
+      if (!qglLockArraysEXT || !qglUnlockArraysEXT)
+      {
+        ri.Error (ERR_FATAL, "bad getprocaddress");
+      }
+    } else
+    {
+      ri.Printf( PRINT_ALL, "...ignoring GL_EXT_compiled_vertex_array\n" );
+    }
+  } else
+  {
+    ri.Printf( PRINT_ALL, "...GL_EXT_compiled_vertex_array not found\n" );
+  }
+
+}
+
+static void GLW_InitGamma(void)
+{
+  /* Minimum extension version required */
+  #define GAMMA_MINMAJOR 2
+  #define GAMMA_MINMINOR 0
+  
+  glConfig.deviceSupportsGamma = qfalse;
+
+#ifdef HAVE_XF86DGA
+  if (vidmode_ext)
+  {
+    if (vidmode_MajorVersion < GAMMA_MINMAJOR || 
+        (vidmode_MajorVersion == GAMMA_MINMAJOR && vidmode_MinorVersion < GAMMA_MINMINOR)) {
+      ri.Printf( PRINT_ALL, "XF86 Gamma extension not supported in this version\n");
+      return;
+    }
+    XF86VidModeGetGamma(dpy, scrnum, &vidmode_InitialGamma);
+    ri.Printf( PRINT_ALL, "XF86 Gamma extension initialized\n");
+    glConfig.deviceSupportsGamma = qtrue;
+  }
+#endif /* HAVE_XF86DGA */
+}
+
+/*
+** 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;
+
+  ri.Printf( PRINT_ALL, "...loading %s: ", name );
+
+  // disable the 3Dfx splash screen and set gamma
+  // we do this all the time, but it shouldn't hurt anything
+  // on non-3Dfx stuff
+  putenv("FX_GLIDE_NO_SPLASH=0");
+
+  // Mesa VooDoo hacks
+  putenv("MESA_GLX_FX=fullscreen\n");
+
+  // load the QGL layer
+  if ( QGL_Init( name ) )
+  {
+    fullscreen = r_fullscreen->integer;
+
+    // create the window and set up the context
+    if ( !GLW_StartDriverAndSetMode( name, r_mode->integer, fullscreen ) )
+    {
+      if (r_mode->integer != 3)
+      {
+        if ( !GLW_StartDriverAndSetMode( name, 3, fullscreen ) )
+        {
+          goto fail;
+        }
+      } else
+        goto fail;
+    }
+
+    return qtrue;
+  } else
+  {
+    ri.Printf( PRINT_ALL, "failed\n" );
+  }
+  fail:
+
+  QGL_Shutdown();
+
+  return qfalse;
+}
+
+/*
+** 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)
+*/
+int qXErrorHandler(Display *dpy, XErrorEvent *ev)
+{
+  static char buf[1024];
+  XGetErrorText(dpy, ev->error_code, buf, 1024);
+  ri.Printf( PRINT_ALL, "X Error of failed request: %s\n", buf);
+  ri.Printf( PRINT_ALL, "  Major opcode of failed request: %d\n", ev->request_code, buf);
+  ri.Printf( PRINT_ALL, "  Minor opcode of failed request: %d\n", ev->minor_code);  
+  ri.Printf( PRINT_ALL, "  Serial number of failed request: %d\n", ev->serial);
+  return 0;
+}
+
+/*
+** GLimp_Init
+**
+** This routine is responsible for initializing the OS specific portions
+** of OpenGL.  
+*/
+void GLimp_Init( void )
+{
+  qboolean attemptedlibGL = qfalse;
+  qboolean attempted3Dfx = qfalse;
+  qboolean success = qfalse;
+  char  buf[1024];
+  cvar_t *lastValidRenderer = ri.Cvar_Get( "r_lastValidRenderer", "(uninitialized)", CVAR_ARCHIVE );
+
+  // guarded, as this is only relevant to SMP renderer thread
+#ifdef SMP
+  if (!XInitThreads())
+  {
+    Com_Printf("GLimp_Init() - XInitThreads() failed, disabling r_smp\n");
+    ri.Cvar_Set( "r_smp", "0" );
+  }
+#endif
+
+  r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
+
+  r_previousglDriver = ri.Cvar_Get( "r_previousglDriver", "", CVAR_ROM );
+
+  InitSig();
+
+  IN_Init();   // rcg08312005 moved into glimp.
+
+  // Hack here so that if the UI 
+  if ( *r_previousglDriver->string )
+  {
+    // The UI changed it on us, hack it back
+    // This means the renderer can't be changed on the fly
+    ri.Cvar_Set( "r_glDriver", r_previousglDriver->string );
+  }
+  
+  // set up our custom error handler for X failures
+  XSetErrorHandler(&qXErrorHandler);
+
+  //
+  // load and initialize the specific OpenGL driver
+  //
+  if ( !GLW_LoadOpenGL( r_glDriver->string ) )
+  {
+    if ( !Q_stricmp( r_glDriver->string, OPENGL_DRIVER_NAME ) )
+    {
+      attemptedlibGL = qtrue;
+    } else if ( !Q_stricmp( r_glDriver->string, _3DFX_DRIVER_NAME ) )
+    {
+      attempted3Dfx = qtrue;
+    }
+
+    #if 0
+    // TTimo
+    // https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=455
+    // old legacy load code, was confusing people who had a bad OpenGL setup
+    if ( !attempted3Dfx && !success )
+    {
+      attempted3Dfx = qtrue;
+      if ( GLW_LoadOpenGL( _3DFX_DRIVER_NAME ) )
+      {
+        ri.Cvar_Set( "r_glDriver", _3DFX_DRIVER_NAME );
+        r_glDriver->modified = qfalse;
+        success = qtrue;
+      }
+    }
+    #endif
+
+    // try ICD before trying 3Dfx standalone driver
+    if ( !attemptedlibGL && !success )
+    {
+      attemptedlibGL = qtrue;
+      if ( GLW_LoadOpenGL( OPENGL_DRIVER_NAME ) )
+      {
+        ri.Cvar_Set( "r_glDriver", OPENGL_DRIVER_NAME );
+        r_glDriver->modified = qfalse;
+        success = qtrue;
+      }
+    }
+
+    if (!success)
+      ri.Error( ERR_FATAL, "GLimp_Init() - could not load OpenGL subsystem\n" );
+
+  }
+
+  // Save it in case the UI stomps it
+  ri.Cvar_Set( "r_previousglDriver", r_glDriver->string );
+
+  // This values force the UI to disable driver selection
+  glConfig.driverType = GLDRV_ICD;
+  glConfig.hardwareType = GLHW_GENERIC;
+
+  // get our config strings
+  Q_strncpyz( glConfig.vendor_string, qglGetString (GL_VENDOR), sizeof( glConfig.vendor_string ) );
+  Q_strncpyz( glConfig.renderer_string, qglGetString (GL_RENDERER), sizeof( glConfig.renderer_string ) );
+  if (*glConfig.renderer_string && glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] == '\n')
+    glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] = 0;
+  Q_strncpyz( glConfig.version_string, qglGetString (GL_VERSION), sizeof( glConfig.version_string ) );
+  Q_strncpyz( glConfig.extensions_string, qglGetString (GL_EXTENSIONS), sizeof( glConfig.extensions_string ) );
+
+  //
+  // chipset specific configuration
+  //
+  strcpy( buf, glConfig.renderer_string );
+  strlwr( buf );
+
+  //
+  // NOTE: if changing cvars, do it within this block.  This allows them
+  // to be overridden when testing driver fixes, etc. but only sets
+  // them to their default state when the hardware is first installed/run.
+  //
+  if ( Q_stricmp( lastValidRenderer->string, glConfig.renderer_string ) )
+  {
+    glConfig.hardwareType = GLHW_GENERIC;
+
+    ri.Cvar_Set( "r_textureMode", "GL_LINEAR_MIPMAP_NEAREST" );
+
+    // VOODOO GRAPHICS w/ 2MB
+    if ( Q_stristr( buf, "voodoo graphics/1 tmu/2 mb" ) )
+    {
+      ri.Cvar_Set( "r_picmip", "2" );
+      ri.Cvar_Get( "r_picmip", "1", CVAR_ARCHIVE | CVAR_LATCH );
+    } else
+    {
+      ri.Cvar_Set( "r_picmip", "1" );
+
+      if ( Q_stristr( buf, "rage 128" ) || Q_stristr( buf, "rage128" ) )
+      {
+        ri.Cvar_Set( "r_finish", "0" );
+      }
+      // Savage3D and Savage4 should always have trilinear enabled
+      else if ( Q_stristr( buf, "savage3d" ) || Q_stristr( buf, "s3 savage4" ) )
+      {
+        ri.Cvar_Set( "r_texturemode", "GL_LINEAR_MIPMAP_LINEAR" );
+      }
+    }
+  }
+
+  //
+  // this is where hardware specific workarounds that should be
+  // detected/initialized every startup should go.
+  //
+  if ( Q_stristr( buf, "banshee" ) || Q_stristr( buf, "Voodoo_Graphics" ) )
+  {
+    glConfig.hardwareType = GLHW_3DFX_2D3D;
+  } else if ( Q_stristr( buf, "rage pro" ) || Q_stristr( buf, "RagePro" ) )
+  {
+    glConfig.hardwareType = GLHW_RAGEPRO;
+  } else if ( Q_stristr( buf, "permedia2" ) )
+  {
+    glConfig.hardwareType = GLHW_PERMEDIA2;
+  } else if ( Q_stristr( buf, "riva 128" ) )
+  {
+    glConfig.hardwareType = GLHW_RIVA128;
+  } else if ( Q_stristr( buf, "riva tnt " ) )
+  {
+  }
+
+  ri.Cvar_Set( "r_lastValidRenderer", glConfig.renderer_string );
+
+  // initialize extensions
+  GLW_InitExtensions();
+  GLW_InitGamma();
+
+  InitSig(); // not clear why this is at begin & end of function
+
+  return;
+}
+
+
+/*
+** 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)
+{
+  // don't flip if drawing to front buffer
+  if ( Q_stricmp( r_drawBuffer->string, "GL_FRONT" ) != 0 )
+  {
+    qglXSwapBuffers(dpy, win);
+  }
+
+  // check logging
+  QGL_EnableLogging( (qboolean)r_logFile->integer ); // bk001205 - was ->value
+}
+
+#ifdef SMP
+/*
+===========================================================
+
+SMP acceleration
+
+===========================================================
+*/
+
+static pthread_mutex_t	smpMutex = PTHREAD_MUTEX_INITIALIZER;
+
+static pthread_cond_t		renderCommandsEvent = PTHREAD_COND_INITIALIZER;
+static pthread_cond_t		renderCompletedEvent = PTHREAD_COND_INITIALIZER;
+
+static void (*glimpRenderThread)( void );
+
+static void *GLimp_RenderThreadWrapper( void *arg )
+{
+	Com_Printf( "Render thread starting\n" );
+
+  glimpRenderThread();
+
+	qglXMakeCurrent( dpy, None, NULL );
+
+	Com_Printf( "Render thread terminating\n" );
+
+	return arg;
+}
+
+qboolean GLimp_SpawnRenderThread( void (*function)( void ) )
+{
+	pthread_t renderThread;
+	int ret;
+
+	pthread_mutex_init( &smpMutex, NULL );
+
+	pthread_cond_init( &renderCommandsEvent, NULL );
+	pthread_cond_init( &renderCompletedEvent, NULL );
+
+  glimpRenderThread = function;
+
+	ret = pthread_create( &renderThread,
+						  NULL,			// attributes
+						  GLimp_RenderThreadWrapper,
+						  NULL );		// argument
+	if ( ret ) {
+		ri.Printf( PRINT_ALL, "pthread_create returned %d: %s", ret, strerror( ret ) );
+    return qfalse;
+	} else {
+		ret = pthread_detach( renderThread );
+		if ( ret ) {
+			ri.Printf( PRINT_ALL, "pthread_detach returned %d: %s", ret, strerror( ret ) );
+		}
+  }
+
+  return qtrue;
+}
+
+static volatile void    *smpData = NULL;
+static volatile qboolean smpDataReady;
+
+void *GLimp_RendererSleep( void )
+{
+	void  *data;
+
+	qglXMakeCurrent( dpy, None, NULL );
+
+	pthread_mutex_lock( &smpMutex );
+	{
+		smpData = NULL;
+		smpDataReady = qfalse;
+
+		// after this, the front end can exit GLimp_FrontEndSleep
+		pthread_cond_signal( &renderCompletedEvent );
+
+		while ( !smpDataReady ) {
+			pthread_cond_wait( &renderCommandsEvent, &smpMutex );
+		}
+
+		data = (void *)smpData;
+	}
+	pthread_mutex_unlock( &smpMutex );
+
+	qglXMakeCurrent( dpy, win, ctx );
+
+  return data;
+}
+
+void GLimp_FrontEndSleep( void )
+{
+	pthread_mutex_lock( &smpMutex );
+	{
+		while ( smpData ) {
+			pthread_cond_wait( &renderCompletedEvent, &smpMutex );
+		}
+	}
+	pthread_mutex_unlock( &smpMutex );
+
+	qglXMakeCurrent( dpy, win, ctx );
+}
+
+void GLimp_WakeRenderer( void *data )
+{
+	qglXMakeCurrent( dpy, None, NULL );
+
+	pthread_mutex_lock( &smpMutex );
+	{
+		assert( smpData == NULL );
+		smpData = data;
+		smpDataReady = qtrue;
+
+		// after this, the renderer can continue through GLimp_RendererSleep
+		pthread_cond_signal( &renderCommandsEvent );
+	}
+	pthread_mutex_unlock( &smpMutex );
+}
+
+#else
+
+void GLimp_RenderThreadWrapper( void *stub ) {}
+qboolean GLimp_SpawnRenderThread( void (*function)( void ) ) {
+	ri.Printf( PRINT_WARNING, "ERROR: SMP support was disabled at compile time\n");
+  return qfalse;
+}
+void *GLimp_RendererSleep( void ) {
+  return NULL;
+}
+void GLimp_FrontEndSleep( void ) {}
+void GLimp_WakeRenderer( void *data ) {}
+
+#endif
+
+/*****************************************************************************/
+/* MOUSE                                                                     */
+/*****************************************************************************/
+
+void IN_Init(void) {
+	Com_Printf ("\n------- Input Initialization -------\n");
+  // mouse variables
+  in_mouse = Cvar_Get ("in_mouse", "1", CVAR_ARCHIVE);
+  in_dgamouse = Cvar_Get ("in_dgamouse", "1", CVAR_ARCHIVE);
+	
+	// turn on-off sub-frame timing of X events
+	in_subframe = Cvar_Get ("in_subframe", "1", CVAR_ARCHIVE);
+	
+	// developer feature, allows to break without loosing mouse pointer
+	in_nograb = Cvar_Get ("in_nograb", "0", 0);
+
+  // bk001130 - from cvs.17 (mkv), joystick variables
+  in_joystick = Cvar_Get ("in_joystick", "0", CVAR_ARCHIVE|CVAR_LATCH);
+  // 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); // FIXME: in_joythreshold
+
+  Cvar_Set( "cl_platformSensitivity", "2.0" );
+
+  if (in_mouse->value)
+    mouse_avail = qtrue;
+  else
+    mouse_avail = qfalse;
+
+  IN_StartupJoystick( ); // bk001130 - from cvs1.17 (mkv)
+	Com_Printf ("------------------------------------\n");
+}
+
+void IN_Shutdown(void)
+{
+  mouse_avail = qfalse;
+}
+
+void IN_Frame (void) {
+
+  // bk001130 - from cvs 1.17 (mkv)
+  IN_JoyMove(); // FIXME: disable if on desktop?
+
+  if ( cls.keyCatchers & KEYCATCH_CONSOLE )
+  {
+    // temporarily deactivate if not in the game and
+    // running on the desktop
+    // voodoo always counts as full screen
+    if (Cvar_VariableValue ("r_fullscreen") == 0
+        && strcmp( Cvar_VariableString("r_glDriver"), _3DFX_DRIVER_NAME ) )
+    {
+      IN_DeactivateMouse ();
+      return;
+    }
+  }
+
+  IN_ActivateMouse();
+}
+
+void IN_Activate(void)
+{
+}
+
+// bk001130 - cvs1.17 joystick code (mkv) was here, no linux_joystick.c
+
+void Sys_SendKeyEvents (void) {
+  // XEvent event; // bk001204 - unused
+
+  if (!dpy)
+    return;
+  HandleEvents();
+}
+
+
+// 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  // !USE_SDL_VIDEO
+