vid_glx.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20 #if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
  21 //#define USEDGA
  22 #endif
  23
  24 #include <signal.h>
  25
  26 #include <dlfcn.h>
  27
  28 #include <X11/Xlib.h>
  29 #include <X11/Xutil.h>
  30 #include <X11/Xatom.h>
  31 #include <X11/XKBlib.h> // TODO possibly ifdef this out on non-supporting systems... Solaris (as always)?
  32 #include <GL/glx.h>
  33
  34 #include "quakedef.h"
  35
  36 #include <X11/keysym.h>
  37 #include <X11/cursorfont.h>
  38 #include <X11/xpm.h>
  39
  40 #ifdef USEDGA
  41 #include <X11/extensions/xf86dga.h>
  42 #endif
  43 #include <X11/extensions/xf86vmode.h>
  44
  45 #include <sys/ipc.h>
  46
  47 // get the Uchar type
  48 #include "utf8lib.h"
  49 #include "image.h"
  50
  51 #include "nexuiz.xpm"
  52 #include "darkplaces.xpm"
  53
  54 // Tell startup code that we have a client
  55 int cl_available = true;
  56
  57 // note: if we used the XRandR extension we could support refresh rates
  58 qboolean vid_supportrefreshrate = false;
  59
  60 //GLX prototypes
  61 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  62 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  63 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
  64 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  65 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
  66 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
  67
  68 //GLX_ARB_get_proc_address
  69 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
  70
  71 static dllfunction_t getprocaddressfuncs[] =
  72 {
  73         {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
  74         {NULL, NULL}
  75 };
  76
  77 //GLX_SGI_swap_control
  78 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
  79
  80 static dllfunction_t swapcontrolfuncs[] =
  81 {
  82         {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
  83         {NULL, NULL}
  84 };
  85
  86 static Display *vidx11_display = NULL;
  87 static int vidx11_screen;
  88 static Window win, root;
  89 static GLXContext ctx = NULL;
  90 static GC vidx11_gc = NULL;
  91
  92 Atom wm_delete_window_atom;
  93 Atom net_wm_state_atom;
  94 Atom net_wm_state_hidden_atom;
  95 Atom net_wm_state_fullscreen_atom;
  96 Atom net_wm_icon;
  97 Atom cardinal;
  98
  99 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
 100 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
 101                     PointerMotionMask | ButtonMotionMask)
 102 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
 103                 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
 104                 LeaveWindowMask)
 105
 106
 107 static qboolean mouse_avail = true;
 108 static qboolean vid_usingmousegrab = false;
 109 static qboolean vid_usingmouse = false;
 110 static qboolean vid_usinghidecursor = false;
 111 static qboolean vid_usingvsync = false;
 112 static qboolean vid_usevsync = false;
 113 #ifdef USEDGA
 114 static qboolean vid_x11_dgasupported = false;
 115 #endif
 116
 117 #ifdef USEDGA
 118 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 119 static qboolean vid_usingdgamouse = false;
 120 #endif
 121
 122 qboolean vidmode_ext = false;
 123
 124 static int win_x, win_y;
 125
 126 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 127 static qboolean vid_isfullscreen = false;
 128 static qboolean vid_isvidmodefullscreen = false;
 129 static qboolean vid_isdesktopfullscreen = false;
 130 static qboolean vid_isoverrideredirect = false;
 131
 132 static vid_mode_t desktop_mode;
 133 static Visual *vidx11_visual;
 134 static Colormap vidx11_colormap;
 135
 136 /*-----------------------------------------------------------------------*/
 137 //
 138
 139 extern long keysym2ucs(KeySym keysym); // LordHavoc: suppress warning just in this case, it's not worth having a header file for this...
 140 static void DP_Xutf8LookupString(XKeyEvent * ev,
 141                          Uchar *uch,
 142                          KeySym * keysym_return,
 143                          Status * status_return)
 144 {
 145         int rc;
 146         KeySym keysym;
 147         int codepoint;
 148         char buffer[64];
 149         int nbytes = sizeof(buffer);
 150
 151         rc = XLookupString(ev, buffer, nbytes, &keysym, NULL);
 152
 153         if (rc > 0) {
 154                 codepoint = buffer[0] & 0xFF;
 155         } else {
 156                 codepoint = keysym2ucs(keysym);
 157         }
 158
 159         if (codepoint < 0) {
 160                 if (keysym == None) {
 161                         *status_return = XLookupNone;
 162                 } else {
 163                         *status_return = XLookupKeySym;
 164                         *keysym_return = keysym;
 165                 }
 166                 *uch = 0;
 167                 return;
 168         }
 169
 170         *uch = codepoint;
 171
 172         if (keysym != None) {
 173                 *keysym_return = keysym;
 174                 *status_return = XLookupBoth;
 175         } else {
 176                 *status_return = XLookupChars;
 177         }
 178 }
 179 static int XLateKey(XKeyEvent *ev, Uchar *ascii)
 180 {
 181         int key = 0;
 182         //char buf[64];
 183         KeySym keysym, shifted;
 184         Status status;
 185
 186         keysym = XLookupKeysym (ev, 0);
 187         DP_Xutf8LookupString(ev, ascii, &shifted, &status);
 188
 189         switch(keysym)
 190         {
 191                 case XK_KP_Page_Up:      key = K_KP_PGUP; break;
 192                 case XK_Page_Up:         key = K_PGUP; break;
 193
 194                 case XK_KP_Page_Down: key = K_KP_PGDN; break;
 195                 case XK_Page_Down:       key = K_PGDN; break;
 196
 197                 case XK_KP_Home: key = K_KP_HOME; break;
 198                 case XK_Home:    key = K_HOME; break;
 199
 200                 case XK_KP_End:  key = K_KP_END; break;
 201                 case XK_End:     key = K_END; break;
 202
 203                 case XK_KP_Left: key = K_KP_LEFTARROW; break;
 204                 case XK_Left:    key = K_LEFTARROW; break;
 205
 206                 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
 207                 case XK_Right:  key = K_RIGHTARROW;             break;
 208
 209                 case XK_KP_Down: key = K_KP_DOWNARROW; break;
 210                 case XK_Down:    key = K_DOWNARROW; break;
 211
 212                 case XK_KP_Up:   key = K_KP_UPARROW; break;
 213                 case XK_Up:              key = K_UPARROW;        break;
 214
 215                 case XK_Escape: key = K_ESCAPE;         break;
 216
 217                 case XK_KP_Enter: key = K_KP_ENTER;     break;
 218                 case XK_Return: key = K_ENTER;           break;
 219
 220                 case XK_Tab:            key = K_TAB;                     break;
 221
 222                 case XK_F1:              key = K_F1;                            break;
 223
 224                 case XK_F2:              key = K_F2;                            break;
 225
 226                 case XK_F3:              key = K_F3;                            break;
 227
 228                 case XK_F4:              key = K_F4;                            break;
 229
 230                 case XK_F5:              key = K_F5;                            break;
 231
 232                 case XK_F6:              key = K_F6;                            break;
 233
 234                 case XK_F7:              key = K_F7;                            break;
 235
 236                 case XK_F8:              key = K_F8;                            break;
 237
 238                 case XK_F9:              key = K_F9;                            break;
 239
 240                 case XK_F10:            key = K_F10;                     break;
 241
 242                 case XK_F11:            key = K_F11;                     break;
 243
 244                 case XK_F12:            key = K_F12;                     break;
 245
 246                 case XK_BackSpace: key = K_BACKSPACE; break;
 247
 248                 case XK_KP_Delete: key = K_KP_DEL; break;
 249                 case XK_Delete: key = K_DEL; break;
 250
 251                 case XK_Pause:  key = K_PAUSE;           break;
 252
 253                 case XK_Shift_L:
 254                 case XK_Shift_R:        key = K_SHIFT;          break;
 255
 256                 case XK_Execute:
 257                 case XK_Control_L:
 258                 case XK_Control_R:      key = K_CTRL;            break;
 259
 260                 case XK_Alt_L:
 261                 case XK_Meta_L:
 262                 case XK_ISO_Level3_Shift:
 263                 case XK_Alt_R:
 264                 case XK_Meta_R: key = K_ALT;                    break;
 265
 266                 case XK_KP_Begin: key = K_KP_5; break;
 267
 268                 case XK_Insert:key = K_INS; break;
 269                 case XK_KP_Insert: key = K_KP_INS; break;
 270
 271                 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
 272                 case XK_KP_Add:  key = K_KP_PLUS; break;
 273                 case XK_KP_Subtract: key = K_KP_MINUS; break;
 274                 case XK_KP_Divide: key = K_KP_SLASH; break;
 275
 276                 case XK_Num_Lock: key = K_NUMLOCK; break;
 277                 case XK_Caps_Lock: key = K_CAPSLOCK; break;
 278                 case XK_Scroll_Lock: key = K_SCROLLOCK; break;
 279
 280                 case XK_asciicircum:    *ascii = key = '^'; break; // for some reason, XLookupString returns "" on this one for Grunt|2
 281
 282                 case XK_section:        *ascii = key = '~'; break;
 283
 284                 default:
 285                         if (keysym < 32)
 286                                 break;
 287
 288                         if (keysym >= 'A' && keysym <= 'Z')
 289                                 key = keysym - 'A' + 'a';
 290                         else
 291                                 key = keysym;
 292
 293                         break;
 294         }
 295
 296         return key;
 297 }
 298
 299 static Cursor CreateNullCursor(Display *display, Window root)
 300 {
 301         Pixmap cursormask;
 302         XGCValues xgc;
 303         GC gc;
 304         XColor dummycolour;
 305         Cursor cursor;
 306
 307         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 308         xgc.function = GXclear;
 309         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 310         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 311         dummycolour.pixel = 0;
 312         dummycolour.red = 0;
 313         dummycolour.flags = 04;
 314         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 315         XFreePixmap(display,cursormask);
 316         XFreeGC(display,gc);
 317         return cursor;
 318 }
 319
 320 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 321 {
 322         static int originalmouseparms_num;
 323         static int originalmouseparms_denom;
 324         static int originalmouseparms_threshold;
 325         static qboolean restore_spi;
 326
 327 #ifdef USEDGA
 328         qboolean usedgamouse;
 329 #endif
 330
 331         if (!vidx11_display || !win)
 332                 return;
 333
 334         if (relative)
 335                 fullscreengrab = true;
 336
 337         if (!mouse_avail)
 338                 fullscreengrab = relative = hidecursor = false;
 339
 340 #ifdef USEDGA
 341         usedgamouse = relative && vid_dgamouse.integer;
 342         if (!vid_x11_dgasupported)
 343                 usedgamouse = false;
 344         if (fullscreengrab && vid_usingmouse && (vid_usingdgamouse != usedgamouse))
 345                 VID_SetMouse(false, false, false); // ungrab first!
 346 #endif
 347
 348         if (vid_usingmousegrab != fullscreengrab)
 349         {
 350                 vid_usingmousegrab = fullscreengrab;
 351                 cl_ignoremousemoves = 2;
 352                 if (fullscreengrab)
 353                 {
 354                         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 355                         if (vid_grabkeyboard.integer || vid_isoverrideredirect)
 356                                 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 357                 }
 358                 else
 359                 {
 360                         XUngrabPointer(vidx11_display, CurrentTime);
 361                         XUngrabKeyboard(vidx11_display, CurrentTime);
 362                 }
 363         }
 364
 365         if (relative)
 366         {
 367                 if (!vid_usingmouse)
 368                 {
 369                         XWindowAttributes attribs_1;
 370                         XSetWindowAttributes attribs_2;
 371
 372                         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 373                         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 374                         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 375
 376 #ifdef USEDGA
 377                         vid_usingdgamouse = usedgamouse;
 378                         if (usedgamouse)
 379                         {
 380                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 381                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 382                         }
 383                         else
 384 #endif
 385                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 386
 387 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
 388 #ifdef USEDGA
 389                         if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 390 #else
 391                         if (!COM_CheckParm ("-noforcemparms"))
 392 #endif
 393                         {
 394                                 XGetPointerControl(vidx11_display, &originalmouseparms_num, &originalmouseparms_denom, &originalmouseparms_threshold);
 395                                 XChangePointerControl (vidx11_display, true, false, 1, 1, -1); // TODO maybe change threshold here, or remove this comment
 396                                 restore_spi = true;
 397                         }
 398                         else
 399                                 restore_spi = false;
 400
 401                         cl_ignoremousemoves = 2;
 402                         vid_usingmouse = true;
 403                 }
 404         }
 405         else
 406         {
 407                 if (vid_usingmouse)
 408                 {
 409 #ifdef USEDGA
 410                         if (vid_usingdgamouse)
 411                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 412                         vid_usingdgamouse = false;
 413 #endif
 414                         cl_ignoremousemoves = 2;
 415
 416                         if (restore_spi)
 417                                 XChangePointerControl (vidx11_display, true, true, originalmouseparms_num, originalmouseparms_denom, originalmouseparms_threshold);
 418                         restore_spi = false;
 419
 420                         vid_usingmouse = false;
 421                 }
 422         }
 423
 424         if (vid_usinghidecursor != hidecursor)
 425         {
 426                 vid_usinghidecursor = hidecursor;
 427                 if (hidecursor)
 428                         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 429                 else
 430                         XUndefineCursor(vidx11_display, win);
 431         }
 432 }
 433
 434 static keynum_t buttonremap[18] =
 435 {
 436         K_MOUSE1,
 437         K_MOUSE3,
 438         K_MOUSE2,
 439         K_MWHEELUP,
 440         K_MWHEELDOWN,
 441         K_MOUSE4,
 442         K_MOUSE5,
 443         K_MOUSE6,
 444         K_MOUSE7,
 445         K_MOUSE8,
 446         K_MOUSE9,
 447         K_MOUSE10,
 448         K_MOUSE11,
 449         K_MOUSE12,
 450         K_MOUSE13,
 451         K_MOUSE14,
 452         K_MOUSE15,
 453         K_MOUSE16,
 454 };
 455
 456 static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 457 static void HandleEvents(void)
 458 {
 459         XEvent event;
 460         int key;
 461         Uchar unicode;
 462         qboolean dowarp = false;
 463
 464         if (!vidx11_display)
 465                 return;
 466
 467         in_mouse_x += in_mouse_x_save;
 468         in_mouse_y += in_mouse_y_save;
 469         in_mouse_x_save = 0;
 470         in_mouse_y_save = 0;
 471
 472         while (XPending(vidx11_display))
 473         {
 474                 XNextEvent(vidx11_display, &event);
 475
 476                 switch (event.type)
 477                 {
 478                 case KeyPress:
 479                         // key pressed
 480                         key = XLateKey (&event.xkey, &unicode);
 481                         Key_Event(key, unicode, true);
 482                         break;
 483
 484                 case KeyRelease:
 485                         // key released
 486                         key = XLateKey (&event.xkey, &unicode);
 487                         Key_Event(key, unicode, false);
 488                         break;
 489
 490                 case MotionNotify:
 491                         // mouse moved
 492                         if (vid_usingmouse)
 493                         {
 494 #ifdef USEDGA
 495                                 if (vid_usingdgamouse)
 496                                 {
 497                                         in_mouse_x += event.xmotion.x_root;
 498                                         in_mouse_y += event.xmotion.y_root;
 499                                 }
 500                                 else
 501 #endif
 502                                 {
 503                                         if (!event.xmotion.send_event)
 504                                         {
 505                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 506                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 507                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 508                                                 if (vid_stick_mouse.integer || abs(vid.width/2 - event.xmotion.x) > vid.width / 4 || abs(vid.height/2 - event.xmotion.y) > vid.height / 4)
 509                                                         dowarp = true;
 510                                         }
 511                                 }
 512                         }
 513                         in_windowmouse_x = event.xmotion.x;
 514                         in_windowmouse_y = event.xmotion.y;
 515                         break;
 516
 517                 case ButtonPress:
 518                         // mouse button pressed
 519                         if (event.xbutton.button <= 18)
 520                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 521                         else
 522                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 523                         break;
 524
 525                 case ButtonRelease:
 526                         // mouse button released
 527                         if (event.xbutton.button <= 18)
 528                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 529                         else
 530                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 531                         break;
 532
 533                 case CreateNotify:
 534                         // window created
 535                         win_x = event.xcreatewindow.x;
 536                         win_y = event.xcreatewindow.y;
 537                         break;
 538
 539                 case ConfigureNotify:
 540                         // window changed size/location
 541                         win_x = event.xconfigure.x;
 542                         win_y = event.xconfigure.y;
 543                         // HACK on X11, we just request fullscreen mode, but
 544                         // cannot guess what the window manager will do for us
 545                         // exactly. That is why we read back the resolution we
 546                         // actually got here.
 547                         if(vid_isdesktopfullscreen)
 548                         {
 549                                 desktop_mode.width = event.xconfigure.width;
 550                                 desktop_mode.height = event.xconfigure.height;
 551                         }
 552                         if((vid_resizable.integer < 2 || vid_isdesktopfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
 553                         {
 554                                 vid.width = event.xconfigure.width;
 555                                 vid.height = event.xconfigure.height;
 556                                 if(vid_isdesktopfullscreen)
 557                                         Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
 558                                 else
 559                                         Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 560                         }
 561                         break;
 562                 case DestroyNotify:
 563                         // window has been destroyed
 564                         Sys_Quit(0);
 565                         break;
 566                 case ClientMessage:
 567                         // window manager messages
 568                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 569                                 Sys_Quit(0);
 570                         break;
 571                 case MapNotify:
 572                         if (vid_isoverrideredirect)
 573                                 break;
 574                         // window restored
 575                         vid_hidden = false;
 576
 577                         if(vid_isvidmodefullscreen)
 578                         {
 579                                 // set our video mode
 580                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 581
 582                                 // Move the viewport to top left
 583                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 584                         }
 585
 586                         if(vid_isdesktopfullscreen)
 587                         {
 588                                 // make sure it's fullscreen
 589                                 XEvent event;
 590                                 event.type = ClientMessage;
 591                                 event.xclient.serial = 0;
 592                                 event.xclient.send_event = True;
 593                                 event.xclient.message_type = net_wm_state_atom;
 594                                 event.xclient.window = win;
 595                                 event.xclient.format = 32;
 596                                 event.xclient.data.l[0] = 1;
 597                                 event.xclient.data.l[1] = net_wm_state_fullscreen_atom;
 598                                 event.xclient.data.l[2] = 0;
 599                                 event.xclient.data.l[3] = 1;
 600                                 event.xclient.data.l[4] = 0;
 601                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 602                         }
 603
 604                         dowarp = true;
 605
 606                         break;
 607                 case UnmapNotify:
 608                         if (vid_isoverrideredirect)
 609                                 break;
 610                         // window iconified/rolledup/whatever
 611                         vid_hidden = true;
 612
 613                         if(vid_isvidmodefullscreen)
 614                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 615
 616                         break;
 617                 case FocusIn:
 618                         if (vid_isoverrideredirect)
 619                                 break;
 620                         // window is now the input focus
 621                         vid_activewindow = true;
 622                         break;
 623                 case FocusOut:
 624                         if (vid_isoverrideredirect)
 625                                 break;
 626
 627                         if(vid_isdesktopfullscreen && event.xfocus.mode == NotifyNormal)
 628                         {
 629                                 // iconify netwm fullscreen window when it loses focus
 630                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 631                                 XEvent event;
 632                                 event.type = ClientMessage;
 633                                 event.xclient.serial = 0;
 634                                 event.xclient.send_event = True;
 635                                 event.xclient.message_type = net_wm_state_atom;
 636                                 event.xclient.window = win;
 637                                 event.xclient.format = 32;
 638                                 event.xclient.data.l[0] = 1;
 639                                 event.xclient.data.l[1] = net_wm_state_hidden_atom;
 640                                 event.xclient.data.l[2] = 0;
 641                                 event.xclient.data.l[3] = 1;
 642                                 event.xclient.data.l[4] = 0;
 643                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 644                         }
 645
 646                         // window is no longer the input focus
 647                         vid_activewindow = false;
 648
 649                         break;
 650                 case EnterNotify:
 651                         // mouse entered window
 652                         break;
 653                 case LeaveNotify:
 654                         // mouse left window
 655                         break;
 656                 default:
 657                         break;
 658                 }
 659         }
 660
 661         if (dowarp)
 662         {
 663                 /* move the mouse to the window center again */
 664                 // we'll catch the warp motion by its send_event flag, updating the
 665                 // stored mouse position without adding any delta motion
 666                 XEvent event;
 667                 event.type = MotionNotify;
 668                 event.xmotion.display = vidx11_display;
 669                 event.xmotion.window = win;
 670                 event.xmotion.x = vid.width / 2;
 671                 event.xmotion.y = vid.height / 2;
 672                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 673                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 674         }
 675 }
 676
 677 static void *prjobj = NULL;
 678
 679 static void GL_CloseLibrary(void)
 680 {
 681         if (prjobj)
 682                 dlclose(prjobj);
 683         prjobj = NULL;
 684         gl_driver[0] = 0;
 685         qglXGetProcAddressARB = NULL;
 686         gl_extensions = "";
 687         gl_platform = "";
 688         gl_platformextensions = "";
 689 }
 690
 691 static int GL_OpenLibrary(const char *name)
 692 {
 693         Con_Printf("Loading OpenGL driver %s\n", name);
 694         GL_CloseLibrary();
 695         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 696         {
 697                 Con_Printf("Unable to open symbol list for %s\n", name);
 698                 return false;
 699         }
 700         strlcpy(gl_driver, name, sizeof(gl_driver));
 701         return true;
 702 }
 703
 704 void *GL_GetProcAddress(const char *name)
 705 {
 706         void *p = NULL;
 707         if (qglXGetProcAddressARB != NULL)
 708                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 709         if (p == NULL)
 710                 p = (void *) dlsym(prjobj, name);
 711         return p;
 712 }
 713
 714 void VID_Shutdown(void)
 715 {
 716         if (!vidx11_display)
 717                 return;
 718
 719         VID_EnableJoystick(false);
 720         VID_SetMouse(false, false, false);
 721
 722         // FIXME: glXDestroyContext here?
 723         if (vid_isvidmodefullscreen)
 724                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 725
 726         if(vidx11_gc)
 727                 XFreeGC(vidx11_display, vidx11_gc);
 728         vidx11_gc = NULL;
 729
 730         if (win)
 731                 XDestroyWindow(vidx11_display, win);
 732         XCloseDisplay(vidx11_display);
 733
 734         vid_hidden = true;
 735         vid_isfullscreen = false;
 736         vid_isdesktopfullscreen = false;
 737         vid_isvidmodefullscreen = false;
 738         vid_isoverrideredirect = false;
 739         vidx11_display = NULL;
 740         win = 0;
 741         ctx = NULL;
 742
 743         GL_CloseLibrary();
 744 }
 745
 746 static void signal_handler(int sig)
 747 {
 748         Con_Printf("Received signal %d, exiting...\n", sig);
 749         Sys_Quit(1);
 750 }
 751
 752 static void InitSig(void)
 753 {
 754         signal(SIGHUP, signal_handler);
 755         signal(SIGINT, signal_handler);
 756         signal(SIGQUIT, signal_handler);
 757         signal(SIGILL, signal_handler);
 758         signal(SIGTRAP, signal_handler);
 759         signal(SIGIOT, signal_handler);
 760         signal(SIGBUS, signal_handler);
 761         signal(SIGFPE, signal_handler);
 762         signal(SIGSEGV, signal_handler);
 763         signal(SIGTERM, signal_handler);
 764 }
 765
 766 void VID_Finish (void)
 767 {
 768         vid_usevsync = vid_vsync.integer && !cls.timedemo && qglXSwapIntervalSGI;
 769         switch(vid.renderpath)
 770         {
 771                 case RENDERPATH_GL20:
 772                 case RENDERPATH_GLES2:
 773                         if (vid_usingvsync != vid_usevsync)
 774                         {
 775                                 vid_usingvsync = vid_usevsync;
 776                                 if (qglXSwapIntervalSGI && qglXSwapIntervalSGI (vid_usevsync))
 777                                         Con_Print("glXSwapIntervalSGI didn't accept the vid_vsync change, it will take effect on next vid_restart (GLX_SGI_swap_control does not allow turning off vsync)\n");
 778                         }
 779
 780                         if (!vid_hidden)
 781                         {
 782                                 CHECKGLERROR
 783                                 if (r_speeds.integer == 2 || gl_finish.integer)
 784                                         GL_Finish();
 785                                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 786                         }
 787                         break;
 788         }
 789
 790         VID_UpdateGamma();
 791 }
 792
 793 void VID_Init(void)
 794 {
 795 #ifdef USEDGA
 796         Cvar_RegisterVariable (&vid_dgamouse);
 797 #endif
 798         Cvar_RegisterVariable (&vid_desktopfullscreen);
 799         InitSig(); // trap evil signals
 800 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 801         if (COM_CheckParm ("-nomouse"))
 802                 mouse_avail = false;
 803 }
 804
 805 static void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 806 {
 807         *attrib++ = GLX_RGBA;
 808         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
 809         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
 810         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
 811         *attrib++ = GLX_DOUBLEBUFFER;
 812         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
 813         // if stencil is enabled, ask for alpha too
 814         if (stencil)
 815         {
 816                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
 817                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
 818         }
 819         if (stereobuffer)
 820                 *attrib++ = GLX_STEREO;
 821         if (samples > 1)
 822         {
 823                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
 824                 *attrib++ = 1;
 825                 *attrib++ = GLX_SAMPLES_ARB;
 826                 *attrib++ = samples;
 827         }
 828         *attrib++ = None;
 829 }
 830
 831 static qboolean VID_InitModeGL(viddef_mode_t *mode)
 832 {
 833         int i, j;
 834         int attrib[32];
 835         XSetWindowAttributes attr;
 836         XClassHint *clshints;
 837         XWMHints *wmhints;
 838         XSizeHints *szhints;
 839         unsigned long mask;
 840         XVisualInfo *visinfo;
 841         int MajorVersion, MinorVersion;
 842         const char *drivername;
 843         char *xpm;
 844         char **idata;
 845         unsigned char *data;
 846         char vabuf[1024];
 847
 848         vid_isfullscreen = false;
 849         vid_isdesktopfullscreen = false;
 850         vid_isvidmodefullscreen = false;
 851         vid_isoverrideredirect = false;
 852
 853 #if defined(__APPLE__) && defined(__MACH__)
 854         drivername = "/usr/X11R6/lib/libGL.1.dylib";
 855 #else
 856         drivername = "libGL.so.1";
 857 #endif
 858 // COMMANDLINEOPTION: Linux GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
 859 // COMMANDLINEOPTION: BSD GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
 860 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
 861         i = COM_CheckParm("-gl_driver");
 862         if (i && i < com_argc - 1)
 863                 drivername = com_argv[i + 1];
 864         if (!GL_OpenLibrary(drivername))
 865         {
 866                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
 867                 return false;
 868         }
 869
 870         if (!(vidx11_display = XOpenDisplay(NULL)))
 871         {
 872                 Con_Print("Couldn't open the X display\n");
 873                 return false;
 874         }
 875
 876         // LordHavoc: making the close button on a window do the right thing
 877         // seems to involve this mess, sigh...
 878         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
 879         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
 880         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
 881         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
 882         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
 883         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
 884
 885         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
 886         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
 887
 888         vidx11_screen = DefaultScreen(vidx11_display);
 889         root = RootWindow(vidx11_display, vidx11_screen);
 890
 891         desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
 892         desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
 893         desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
 894         desktop_mode.refreshrate = 60; // FIXME
 895         desktop_mode.pixelheight_num = 1; // FIXME
 896         desktop_mode.pixelheight_denom = 1; // FIXME
 897
 898         // Get video mode list
 899         MajorVersion = MinorVersion = 0;
 900         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 901                 vidmode_ext = false;
 902         else
 903         {
 904                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 905                 vidmode_ext = true;
 906         }
 907
 908         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
 909          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
 910          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
 911          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
 912          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
 913          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
 914         {
 915                 Con_Printf("glX functions not found in %s\n", gl_driver);
 916                 return false;
 917         }
 918
 919         VID_BuildGLXAttrib(attrib, mode->bitsperpixel == 32, mode->stereobuffer, mode->samples);
 920         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
 921         if (!visinfo)
 922         {
 923                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
 924                 return false;
 925         }
 926
 927         if (mode->fullscreen)
 928         {
 929                 if(vid_desktopfullscreen.integer)
 930                 {
 931                         // TODO detect WM support
 932                         vid_isdesktopfullscreen = true;
 933                         vid_isfullscreen = true;
 934                         // width and height will be filled in later
 935                         Con_DPrintf("Using NetWM fullscreen mode\n");
 936                 }
 937
 938                 if(!vid_isfullscreen && vidmode_ext)
 939                 {
 940                         int best_fit, best_dist, dist, x, y;
 941
 942                         // Are we going fullscreen?  If so, let's change video mode
 943                         XF86VidModeModeLine *current_vidmode;
 944                         XF86VidModeModeInfo **vidmodes;
 945                         int num_vidmodes;
 946
 947                         // This nice hack comes from the SDL source code
 948                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
 949                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
 950
 951                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
 952                         best_dist = 0;
 953                         best_fit = -1;
 954
 955                         for (i = 0; i < num_vidmodes; i++)
 956                         {
 957                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
 958                                         continue;
 959
 960                                 x = mode->width - vidmodes[i]->hdisplay;
 961                                 y = mode->height - vidmodes[i]->vdisplay;
 962                                 dist = (x * x) + (y * y);
 963                                 if (best_fit == -1 || dist < best_dist)
 964                                 {
 965                                         best_dist = dist;
 966                                         best_fit = i;
 967                                 }
 968                         }
 969
 970                         if (best_fit != -1)
 971                         {
 972                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 973                                 // to width/height =, so the window will take the full area of
 974                                 // the mode chosen
 975                                 mode->width = vidmodes[best_fit]->hdisplay;
 976                                 mode->height = vidmodes[best_fit]->vdisplay;
 977
 978                                 // change to the mode
 979                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
 980                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
 981                                 vid_isvidmodefullscreen = true;
 982                                 vid_isfullscreen = true;
 983
 984                                 // Move the viewport to top left
 985                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 986                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
 987                         }
 988
 989                         free(vidmodes);
 990                 }
 991
 992                 if(!vid_isfullscreen)
 993                 {
 994                         // sorry, no FS available
 995                         // use the full desktop resolution
 996                         vid_isfullscreen = true;
 997                         // width and height will be filled in later
 998                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
 999                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1000                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1001                 }
1002         }
1003
1004         // LordHavoc: save the visual for use in gamma ramp settings later
1005         vidx11_visual = visinfo->visual;
1006
1007         /* window attributes */
1008         attr.background_pixel = 0;
1009         attr.border_pixel = 0;
1010         // LordHavoc: save the colormap for later, too
1011         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
1012         attr.event_mask = X_MASK;
1013
1014         if (mode->fullscreen)
1015         {
1016                 if(vid_isdesktopfullscreen)
1017                 {
1018                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1019                         attr.backing_store = NotUseful;
1020                         attr.save_under = False;
1021                 }
1022                 else
1023                 {
1024                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1025                         attr.override_redirect = True;
1026                         attr.backing_store = NotUseful;
1027                         attr.save_under = False;
1028                         vid_isoverrideredirect = true; // so it knows to grab
1029                 }
1030         }
1031         else
1032         {
1033                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1034         }
1035
1036         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
1037
1038         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1039         if(data)
1040         {
1041                 // use _NET_WM_ICON too
1042                 static long netwm_icon[MAX_NETWM_ICON];
1043                 int pos = 0;
1044                 int i = 1;
1045
1046                 while(data)
1047                 {
1048                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1049                         {
1050                                 netwm_icon[pos++] = image_width;
1051                                 netwm_icon[pos++] = image_height;
1052                                 for(i = 0; i < image_height; ++i)
1053                                         for(j = 0; j < image_width; ++j)
1054                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1055                         }
1056                         else
1057                         {
1058                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1059                         }
1060                         ++i;
1061                         Mem_Free(data);
1062                         data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
1063                 }
1064                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1065         }
1066
1067         // fallthrough for old window managers
1068         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1069         idata = NULL;
1070         if(xpm)
1071                 idata = XPM_DecodeString(xpm);
1072         if(!idata)
1073                 idata = ENGINE_ICON;
1074
1075         wmhints = XAllocWMHints();
1076         if(XpmCreatePixmapFromData(vidx11_display, win,
1077                 idata,
1078                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1079                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1080
1081         if(xpm)
1082                 Mem_Free(xpm);
1083
1084         clshints = XAllocClassHint();
1085         clshints->res_name = strdup(gamename);
1086         clshints->res_class = strdup("DarkPlaces");
1087
1088         szhints = XAllocSizeHints();
1089         if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
1090         {
1091                 szhints->min_width = szhints->max_width = mode->width;
1092                 szhints->min_height = szhints->max_height = mode->height;
1093                 szhints->flags |= PMinSize | PMaxSize;
1094         }
1095
1096         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1097         // strdup() allocates using malloc(), should be freed with free()
1098         free(clshints->res_name);
1099         free(clshints->res_class);
1100         XFree(clshints);
1101         XFree(wmhints);
1102         XFree(szhints);
1103
1104         //XStoreName(vidx11_display, win, gamename);
1105         XMapWindow(vidx11_display, win);
1106
1107         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1108
1109         if (vid_isoverrideredirect)
1110         {
1111                 XMoveWindow(vidx11_display, win, 0, 0);
1112                 XRaiseWindow(vidx11_display, win);
1113                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1114                 XFlush(vidx11_display);
1115         }
1116
1117         if(vid_isvidmodefullscreen)
1118         {
1119                 // Move the viewport to top left
1120                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1121         }
1122
1123         //XSync(vidx11_display, False);
1124
1125         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
1126         XFree(visinfo); // glXChooseVisual man page says to use XFree to free visinfo
1127         if (!ctx)
1128         {
1129                 Con_Printf ("glXCreateContext failed\n");
1130                 return false;
1131         }
1132
1133         if (!qglXMakeCurrent(vidx11_display, win, ctx))
1134         {
1135                 Con_Printf ("glXMakeCurrent failed\n");
1136                 return false;
1137         }
1138
1139         XSync(vidx11_display, False);
1140
1141         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1142         {
1143                 Con_Printf ("glGetString not found in %s\n", gl_driver);
1144                 return false;
1145         }
1146
1147         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
1148         gl_platform = "GLX";
1149         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
1150
1151 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1152 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1153 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1154         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
1155 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
1156 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
1157 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
1158         GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
1159
1160         vid_usingmousegrab = false;
1161         vid_usingmouse = false;
1162         vid_usinghidecursor = false;
1163         vid_usingvsync = false;
1164         vid_hidden = false;
1165         vid_activewindow = true;
1166 #ifdef USEDGA
1167         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1168         if (!vid_x11_dgasupported)
1169                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1170 #endif
1171
1172         GL_Init();
1173         return true;
1174 }
1175
1176 qboolean VID_InitMode(viddef_mode_t *mode)
1177 {
1178         return VID_InitModeGL(mode);
1179 }
1180
1181 void Sys_SendKeyEvents(void)
1182 {
1183         static qboolean sound_active = true;
1184
1185         // enable/disable sound on focus gain/loss
1186         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
1187         {
1188                 if (!sound_active)
1189                 {
1190                         S_UnblockSound ();
1191                         sound_active = true;
1192                 }
1193         }
1194         else
1195         {
1196                 if (sound_active)
1197                 {
1198                         S_BlockSound ();
1199                         sound_active = false;
1200                 }
1201         }
1202
1203         HandleEvents();
1204 }
1205
1206 void VID_BuildJoyState(vid_joystate_t *joystate)
1207 {
1208         VID_Shared_BuildJoyState_Begin(joystate);
1209         VID_Shared_BuildJoyState_Finish(joystate);
1210 }
1211
1212 void VID_EnableJoystick(qboolean enable)
1213 {
1214         int index = joy_enable.integer > 0 ? joy_index.integer : -1;
1215         qboolean success = false;
1216         int sharedcount = 0;
1217         sharedcount = VID_Shared_SetJoystick(index);
1218         if (index >= 0 && index < sharedcount)
1219                 success = true;
1220
1221         // update cvar containing count of XInput joysticks
1222         if (joy_detected.integer != sharedcount)
1223                 Cvar_SetValueQuick(&joy_detected, sharedcount);
1224
1225         Cvar_SetValueQuick(&joy_active, success ? 1 : 0);
1226 }
1227
1228 void IN_Move (void)
1229 {
1230         vid_joystate_t joystate;
1231         VID_EnableJoystick(true);
1232         VID_BuildJoyState(&joystate);
1233         VID_ApplyJoyState(&joystate);
1234 }
1235
1236 vid_mode_t *VID_GetDesktopMode(void)
1237 {
1238         return &desktop_mode;
1239 }
1240
1241 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1242 {
1243         if(vidmode_ext)
1244         {
1245                 int i, bpp;
1246                 size_t k;
1247                 XF86VidModeModeInfo **vidmodes;
1248                 int num_vidmodes;
1249
1250                 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1251                 k = 0;
1252                 for (i = 0; i < num_vidmodes; i++)
1253                 {
1254                         if(k >= maxcount)
1255                                 break;
1256                         // we don't get bpp info, so let's just assume all of 8, 15, 16, 24, 32 work
1257                         for(bpp = 8; bpp <= 32; bpp = ((bpp == 8) ? 15 : (bpp & 0xF8) + 8))
1258                         {
1259                                 if(k >= maxcount)
1260                                         break;
1261                                 modes[k].width = vidmodes[i]->hdisplay;
1262                                 modes[k].height = vidmodes[i]->vdisplay;
1263                                 modes[k].bpp = 8;
1264                                 if(vidmodes[i]->dotclock && vidmodes[i]->htotal && vidmodes[i]->vtotal)
1265                                         modes[k].refreshrate = vidmodes[i]->dotclock / vidmodes[i]->htotal / vidmodes[i]->vtotal;
1266                                 else
1267                                         modes[k].refreshrate = 60;
1268                                 modes[k].pixelheight_num = 1;
1269                                 modes[k].pixelheight_denom = 1; // xvidmode does not provide this
1270                                 ++k;
1271                         }
1272                 }
1273                 // manpage of XF86VidModeGetAllModeLines says it should be freed by the caller
1274                 XFree(vidmodes);
1275                 return k;
1276         }
1277         return 0; // FIXME implement this
1278 }