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 #include "dpsoftrast.h"
  36
  37 #include <X11/keysym.h>
  38 #include <X11/cursorfont.h>
  39 #include <X11/xpm.h>
  40
  41 #include <X11/extensions/XShm.h>
  42 #ifdef USEDGA
  43 #include <X11/extensions/xf86dga.h>
  44 #endif
  45 #include <X11/extensions/xf86vmode.h>
  46
  47 #include <sys/ipc.h>
  48 #include <sys/shm.h>
  49 #include <X11/extensions/XShm.h>
  50
  51 // get the Uchar type
  52 #include "utf8lib.h"
  53 #include "image.h"
  54
  55 #include "nexuiz.xpm"
  56 #include "darkplaces.xpm"
  57
  58 // Tell startup code that we have a client
  59 int cl_available = true;
  60
  61 // note: if we used the XRandR extension we could support refresh rates
  62 qboolean vid_supportrefreshrate = false;
  63
  64 //GLX prototypes
  65 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  66 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  67 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
  68 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  69 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
  70 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
  71
  72 //GLX_ARB_get_proc_address
  73 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
  74
  75 static dllfunction_t getprocaddressfuncs[] =
  76 {
  77         {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
  78         {NULL, NULL}
  79 };
  80
  81 //GLX_SGI_swap_control
  82 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
  83
  84 static dllfunction_t swapcontrolfuncs[] =
  85 {
  86         {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
  87         {NULL, NULL}
  88 };
  89
  90 static Display *vidx11_display = NULL;
  91 static int vidx11_screen;
  92 static Window win, root;
  93 static GLXContext ctx = NULL;
  94 static GC vidx11_gc = NULL;
  95 static XImage *vidx11_ximage[2] = { NULL, NULL };
  96 static int vidx11_ximage_pos = 0;
  97 static XShmSegmentInfo vidx11_shminfo[2];
  98 static int vidx11_shmevent = -1;
  99 static int vidx11_shmwait = 0; // number of frames outstanding
 100
 101 Atom wm_delete_window_atom;
 102 Atom net_wm_state_atom;
 103 Atom net_wm_state_hidden_atom;
 104 Atom net_wm_state_fullscreen_atom;
 105 Atom net_wm_icon;
 106 Atom cardinal;
 107
 108 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
 109 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
 110                     PointerMotionMask | ButtonMotionMask)
 111 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
 112                 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
 113                 LeaveWindowMask)
 114
 115
 116 static qboolean mouse_avail = true;
 117 static qboolean vid_usingmousegrab = false;
 118 static qboolean vid_usingmouse = false;
 119 static qboolean vid_usinghidecursor = false;
 120 static qboolean vid_usingvsync = false;
 121 static qboolean vid_usevsync = false;
 122 #ifdef USEDGA
 123 static qboolean vid_x11_dgasupported = false;
 124 #endif
 125
 126 #ifdef USEDGA
 127 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 128 static qboolean vid_usingdgamouse = false;
 129 #endif
 130
 131 qboolean vidmode_ext = false;
 132
 133 static int win_x, win_y;
 134
 135 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 136 static qboolean vid_isfullscreen = false;
 137 static qboolean vid_isvidmodefullscreen = false;
 138 static qboolean vid_isdesktopfullscreen = false;
 139 static qboolean vid_isoverrideredirect = false;
 140
 141 static vid_mode_t desktop_mode;
 142 static Visual *vidx11_visual;
 143 static Colormap vidx11_colormap;
 144
 145 /*-----------------------------------------------------------------------*/
 146 //
 147
 148 extern long keysym2ucs(KeySym keysym); // LordHavoc: suppress warning just in this case, it's not worth having a header file for this...
 149 static void DP_Xutf8LookupString(XKeyEvent * ev,
 150                          Uchar *uch,
 151                          KeySym * keysym_return,
 152                          Status * status_return)
 153 {
 154         int rc;
 155         KeySym keysym;
 156         int codepoint;
 157         char buffer[64];
 158         int nbytes = sizeof(buffer);
 159
 160         rc = XLookupString(ev, buffer, nbytes, &keysym, NULL);
 161
 162         if (rc > 0) {
 163                 codepoint = buffer[0] & 0xFF;
 164         } else {
 165                 codepoint = keysym2ucs(keysym);
 166         }
 167
 168         if (codepoint < 0) {
 169                 if (keysym == None) {
 170                         *status_return = XLookupNone;
 171                 } else {
 172                         *status_return = XLookupKeySym;
 173                         *keysym_return = keysym;
 174                 }
 175                 *uch = 0;
 176                 return;
 177         }
 178
 179         *uch = codepoint;
 180
 181         if (keysym != None) {
 182                 *keysym_return = keysym;
 183                 *status_return = XLookupBoth;
 184         } else {
 185                 *status_return = XLookupChars;
 186         }
 187 }
 188 static int XLateKey(XKeyEvent *ev, Uchar *ascii)
 189 {
 190         int key = 0;
 191         //char buf[64];
 192         KeySym keysym, shifted;
 193         Status status;
 194
 195         keysym = XLookupKeysym (ev, 0);
 196         DP_Xutf8LookupString(ev, ascii, &shifted, &status);
 197
 198         switch(keysym)
 199         {
 200                 case XK_KP_Page_Up:      key = K_KP_PGUP; break;
 201                 case XK_Page_Up:         key = K_PGUP; break;
 202
 203                 case XK_KP_Page_Down: key = K_KP_PGDN; break;
 204                 case XK_Page_Down:       key = K_PGDN; break;
 205
 206                 case XK_KP_Home: key = K_KP_HOME; break;
 207                 case XK_Home:    key = K_HOME; break;
 208
 209                 case XK_KP_End:  key = K_KP_END; break;
 210                 case XK_End:     key = K_END; break;
 211
 212                 case XK_KP_Left: key = K_KP_LEFTARROW; break;
 213                 case XK_Left:    key = K_LEFTARROW; break;
 214
 215                 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
 216                 case XK_Right:  key = K_RIGHTARROW;             break;
 217
 218                 case XK_KP_Down: key = K_KP_DOWNARROW; break;
 219                 case XK_Down:    key = K_DOWNARROW; break;
 220
 221                 case XK_KP_Up:   key = K_KP_UPARROW; break;
 222                 case XK_Up:              key = K_UPARROW;        break;
 223
 224                 case XK_Escape: key = K_ESCAPE;         break;
 225
 226                 case XK_KP_Enter: key = K_KP_ENTER;     break;
 227                 case XK_Return: key = K_ENTER;           break;
 228
 229                 case XK_Tab:            key = K_TAB;                     break;
 230
 231                 case XK_F1:              key = K_F1;                            break;
 232
 233                 case XK_F2:              key = K_F2;                            break;
 234
 235                 case XK_F3:              key = K_F3;                            break;
 236
 237                 case XK_F4:              key = K_F4;                            break;
 238
 239                 case XK_F5:              key = K_F5;                            break;
 240
 241                 case XK_F6:              key = K_F6;                            break;
 242
 243                 case XK_F7:              key = K_F7;                            break;
 244
 245                 case XK_F8:              key = K_F8;                            break;
 246
 247                 case XK_F9:              key = K_F9;                            break;
 248
 249                 case XK_F10:            key = K_F10;                     break;
 250
 251                 case XK_F11:            key = K_F11;                     break;
 252
 253                 case XK_F12:            key = K_F12;                     break;
 254
 255                 case XK_BackSpace: key = K_BACKSPACE; break;
 256
 257                 case XK_KP_Delete: key = K_KP_DEL; break;
 258                 case XK_Delete: key = K_DEL; break;
 259
 260                 case XK_Pause:  key = K_PAUSE;           break;
 261
 262                 case XK_Shift_L:
 263                 case XK_Shift_R:        key = K_SHIFT;          break;
 264
 265                 case XK_Execute:
 266                 case XK_Control_L:
 267                 case XK_Control_R:      key = K_CTRL;            break;
 268
 269                 case XK_Alt_L:
 270                 case XK_Meta_L:
 271                 case XK_ISO_Level3_Shift:
 272                 case XK_Alt_R:
 273                 case XK_Meta_R: key = K_ALT;                    break;
 274
 275                 case XK_KP_Begin: key = K_KP_5; break;
 276
 277                 case XK_Insert:key = K_INS; break;
 278                 case XK_KP_Insert: key = K_KP_INS; break;
 279
 280                 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
 281                 case XK_KP_Add:  key = K_KP_PLUS; break;
 282                 case XK_KP_Subtract: key = K_KP_MINUS; break;
 283                 case XK_KP_Divide: key = K_KP_SLASH; break;
 284
 285                 case XK_Num_Lock: key = K_NUMLOCK; break;
 286                 case XK_Caps_Lock: key = K_CAPSLOCK; break;
 287                 case XK_Scroll_Lock: key = K_SCROLLOCK; break;
 288
 289                 case XK_asciicircum:    *ascii = key = '^'; break; // for some reason, XLookupString returns "" on this one for Grunt|2
 290
 291                 case XK_section:        *ascii = key = '~'; break;
 292
 293                 default:
 294                         if (keysym < 32)
 295                                 break;
 296
 297                         if (keysym >= 'A' && keysym <= 'Z')
 298                                 key = keysym - 'A' + 'a';
 299                         else
 300                                 key = keysym;
 301
 302                         break;
 303         }
 304
 305         return key;
 306 }
 307
 308 static Cursor CreateNullCursor(Display *display, Window root)
 309 {
 310         Pixmap cursormask;
 311         XGCValues xgc;
 312         GC gc;
 313         XColor dummycolour;
 314         Cursor cursor;
 315
 316         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 317         xgc.function = GXclear;
 318         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 319         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 320         dummycolour.pixel = 0;
 321         dummycolour.red = 0;
 322         dummycolour.flags = 04;
 323         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 324         XFreePixmap(display,cursormask);
 325         XFreeGC(display,gc);
 326         return cursor;
 327 }
 328
 329 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 330 {
 331         static int originalmouseparms_num;
 332         static int originalmouseparms_denom;
 333         static int originalmouseparms_threshold;
 334         static qboolean restore_spi;
 335
 336 #ifdef USEDGA
 337         qboolean usedgamouse;
 338 #endif
 339
 340         if (!vidx11_display || !win)
 341                 return;
 342
 343         if (relative)
 344                 fullscreengrab = true;
 345
 346         if (!mouse_avail)
 347                 fullscreengrab = relative = hidecursor = false;
 348
 349 #ifdef USEDGA
 350         usedgamouse = relative && vid_dgamouse.integer;
 351         if (!vid_x11_dgasupported)
 352                 usedgamouse = false;
 353         if (fullscreengrab && vid_usingmouse && (vid_usingdgamouse != usedgamouse))
 354                 VID_SetMouse(false, false, false); // ungrab first!
 355 #endif
 356
 357         if (vid_usingmousegrab != fullscreengrab)
 358         {
 359                 vid_usingmousegrab = fullscreengrab;
 360                 cl_ignoremousemoves = 2;
 361                 if (fullscreengrab)
 362                 {
 363                         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 364                         if (vid_grabkeyboard.integer || vid_isoverrideredirect)
 365                                 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 366                 }
 367                 else
 368                 {
 369                         XUngrabPointer(vidx11_display, CurrentTime);
 370                         XUngrabKeyboard(vidx11_display, CurrentTime);
 371                 }
 372         }
 373
 374         if (relative)
 375         {
 376                 if (!vid_usingmouse)
 377                 {
 378                         XWindowAttributes attribs_1;
 379                         XSetWindowAttributes attribs_2;
 380
 381                         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 382                         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 383                         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 384
 385 #ifdef USEDGA
 386                         vid_usingdgamouse = usedgamouse;
 387                         if (usedgamouse)
 388                         {
 389                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 390                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 391                         }
 392                         else
 393 #endif
 394                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 395
 396 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
 397 #ifdef USEDGA
 398                         if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 399 #else
 400                         if (!COM_CheckParm ("-noforcemparms"))
 401 #endif
 402                         {
 403                                 XGetPointerControl(vidx11_display, &originalmouseparms_num, &originalmouseparms_denom, &originalmouseparms_threshold);
 404                                 XChangePointerControl (vidx11_display, true, false, 1, 1, -1); // TODO maybe change threshold here, or remove this comment
 405                                 restore_spi = true;
 406                         }
 407                         else
 408                                 restore_spi = false;
 409
 410                         cl_ignoremousemoves = 2;
 411                         vid_usingmouse = true;
 412                 }
 413         }
 414         else
 415         {
 416                 if (vid_usingmouse)
 417                 {
 418 #ifdef USEDGA
 419                         if (vid_usingdgamouse)
 420                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 421                         vid_usingdgamouse = false;
 422 #endif
 423                         cl_ignoremousemoves = 2;
 424
 425                         if (restore_spi)
 426                                 XChangePointerControl (vidx11_display, true, true, originalmouseparms_num, originalmouseparms_denom, originalmouseparms_threshold);
 427                         restore_spi = false;
 428
 429                         vid_usingmouse = false;
 430                 }
 431         }
 432
 433         if (vid_usinghidecursor != hidecursor)
 434         {
 435                 vid_usinghidecursor = hidecursor;
 436                 if (hidecursor)
 437                         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 438                 else
 439                         XUndefineCursor(vidx11_display, win);
 440         }
 441 }
 442
 443 static keynum_t buttonremap[18] =
 444 {
 445         K_MOUSE1,
 446         K_MOUSE3,
 447         K_MOUSE2,
 448         K_MWHEELUP,
 449         K_MWHEELDOWN,
 450         K_MOUSE4,
 451         K_MOUSE5,
 452         K_MOUSE6,
 453         K_MOUSE7,
 454         K_MOUSE8,
 455         K_MOUSE9,
 456         K_MOUSE10,
 457         K_MOUSE11,
 458         K_MOUSE12,
 459         K_MOUSE13,
 460         K_MOUSE14,
 461         K_MOUSE15,
 462         K_MOUSE16,
 463 };
 464
 465 static qboolean BuildXImages(int w, int h)
 466 {
 467         int i;
 468         if(DefaultDepth(vidx11_display, vidx11_screen) != 32 && DefaultDepth(vidx11_display, vidx11_screen) != 24)
 469         {
 470                 Con_Printf("Sorry, we only support 24bpp and 32bpp modes\n");
 471                 VID_Shutdown();
 472                 return false;
 473         }
 474         // match to dpsoftrast's specs
 475         if(vidx11_visual->red_mask != 0x00FF0000)
 476         {
 477                 Con_Printf("Sorry, we only support BGR visuals\n");
 478                 VID_Shutdown();
 479                 return false;
 480         }
 481         if(vidx11_visual->green_mask != 0x0000FF00)
 482         {
 483                 Con_Printf("Sorry, we only support BGR visuals\n");
 484                 VID_Shutdown();
 485                 return false;
 486         }
 487         if(vidx11_visual->blue_mask != 0x000000FF)
 488         {
 489                 Con_Printf("Sorry, we only support BGR visuals\n");
 490                 VID_Shutdown();
 491                 return false;
 492         }
 493         if(vidx11_shmevent >= 0)
 494         {
 495                 for(i = 0; i < 2; ++i)
 496                 {
 497                         vidx11_shminfo[i].shmid = -1;
 498                         vidx11_ximage[i] = XShmCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, NULL, &vidx11_shminfo[i], w, h);
 499                         if(!vidx11_ximage[i])
 500                         {
 501                                 Con_Printf("Failed to get an XImage segment\n");
 502                                 VID_Shutdown();
 503                                 return false;
 504                         }
 505                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 506                         {
 507                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 508                                 VID_Shutdown();
 509                                 return false;
 510                         }
 511                         vidx11_shminfo[i].shmid = shmget(IPC_PRIVATE, vidx11_ximage[i]->bytes_per_line * vidx11_ximage[i]->height, IPC_CREAT|0777);
 512                         if(vidx11_shminfo[i].shmid < 0)
 513                         {
 514                                 Con_Printf("Failed to get a shm segment\n");
 515                                 VID_Shutdown();
 516                                 return false;
 517                         }
 518                         vidx11_shminfo[i].shmaddr = vidx11_ximage[i]->data = shmat(vidx11_shminfo[i].shmid, NULL, 0);
 519                         if(!vidx11_shminfo[i].shmaddr)
 520                         {
 521                                 Con_Printf("Failed to get a shm segment addresst\n");
 522                                 VID_Shutdown();
 523                                 return false;
 524                         }
 525                         vidx11_shminfo[i].readOnly = True;
 526                         XShmAttach(vidx11_display, &vidx11_shminfo[i]);
 527                 }
 528         }
 529         else
 530         {
 531                 for(i = 0; i < 1; ++i) // we only need one buffer if we don't use Xshm
 532                 {
 533                         char *p = calloc(4, w * h);
 534                         vidx11_shminfo[i].shmid = -1;
 535                         vidx11_ximage[i] = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)p, w, h, 8, 0);
 536                         if(!vidx11_ximage[i])
 537                         {
 538                                 Con_Printf("Failed to get an XImage segment\n");
 539                                 VID_Shutdown();
 540                                 return false;
 541                         }
 542                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 543                         {
 544                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 545                                 VID_Shutdown();
 546                                 return false;
 547                         }
 548                 }
 549         }
 550         return true;
 551 }
 552 static void DestroyXImages(void)
 553 {
 554         int i;
 555         for(i = 0; i < 2; ++i)
 556         {
 557                 if(vidx11_shminfo[i].shmid >= 0)
 558                 {
 559                         XShmDetach(vidx11_display, &vidx11_shminfo[i]);
 560                         XDestroyImage(vidx11_ximage[i]);
 561                         vidx11_ximage[i] = NULL;
 562                         shmdt(vidx11_shminfo[i].shmaddr);
 563                         shmctl(vidx11_shminfo[i].shmid, IPC_RMID, 0);
 564                         vidx11_shminfo[i].shmid = -1;
 565                 }
 566                 if(vidx11_ximage[i])
 567                         XDestroyImage(vidx11_ximage[i]);
 568                 vidx11_ximage[i] = 0;
 569         }
 570 }
 571
 572 static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 573 static void HandleEvents(void)
 574 {
 575         XEvent event;
 576         int key;
 577         Uchar unicode;
 578         qboolean dowarp = false;
 579
 580         if (!vidx11_display)
 581                 return;
 582
 583         in_mouse_x += in_mouse_x_save;
 584         in_mouse_y += in_mouse_y_save;
 585         in_mouse_x_save = 0;
 586         in_mouse_y_save = 0;
 587
 588         while (XPending(vidx11_display))
 589         {
 590                 XNextEvent(vidx11_display, &event);
 591
 592                 switch (event.type)
 593                 {
 594                 case KeyPress:
 595                         // key pressed
 596                         key = XLateKey (&event.xkey, &unicode);
 597                         Key_Event(key, unicode, true);
 598                         break;
 599
 600                 case KeyRelease:
 601                         // key released
 602                         key = XLateKey (&event.xkey, &unicode);
 603                         Key_Event(key, unicode, false);
 604                         break;
 605
 606                 case MotionNotify:
 607                         // mouse moved
 608                         if (vid_usingmouse)
 609                         {
 610 #ifdef USEDGA
 611                                 if (vid_usingdgamouse)
 612                                 {
 613                                         in_mouse_x += event.xmotion.x_root;
 614                                         in_mouse_y += event.xmotion.y_root;
 615                                 }
 616                                 else
 617 #endif
 618                                 {
 619                                         if (!event.xmotion.send_event)
 620                                         {
 621                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 622                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 623                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 624                                                 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)
 625                                                         dowarp = true;
 626                                         }
 627                                 }
 628                         }
 629                         in_windowmouse_x = event.xmotion.x;
 630                         in_windowmouse_y = event.xmotion.y;
 631                         break;
 632
 633                 case ButtonPress:
 634                         // mouse button pressed
 635                         if (event.xbutton.button <= 18)
 636                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 637                         else
 638                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 639                         break;
 640
 641                 case ButtonRelease:
 642                         // mouse button released
 643                         if (event.xbutton.button <= 18)
 644                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 645                         else
 646                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 647                         break;
 648
 649                 case CreateNotify:
 650                         // window created
 651                         win_x = event.xcreatewindow.x;
 652                         win_y = event.xcreatewindow.y;
 653                         break;
 654
 655                 case ConfigureNotify:
 656                         // window changed size/location
 657                         win_x = event.xconfigure.x;
 658                         win_y = event.xconfigure.y;
 659                         // HACK on X11, we just request fullscreen mode, but
 660                         // cannot guess what the window manager will do for us
 661                         // exactly. That is why we read back the resolution we
 662                         // actually got here.
 663                         if(vid_isdesktopfullscreen)
 664                         {
 665                                 desktop_mode.width = event.xconfigure.width;
 666                                 desktop_mode.height = event.xconfigure.height;
 667                         }
 668                         if((vid_resizable.integer < 2 || vid_isdesktopfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
 669                         {
 670                                 vid.width = event.xconfigure.width;
 671                                 vid.height = event.xconfigure.height;
 672                                 if(vid_isdesktopfullscreen)
 673                                         Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
 674                                 else
 675                                         Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 676
 677                                 if(vid.renderpath == RENDERPATH_SOFT)
 678                                 {
 679                                         DPSOFTRAST_Flush();
 680                                         if(vid.softdepthpixels)
 681                                                 free(vid.softdepthpixels);
 682                                         DestroyXImages();
 683                                         XSync(vidx11_display, False);
 684                                         if(!BuildXImages(vid.width, vid.height))
 685                                                 return;
 686                                         XSync(vidx11_display, False);
 687                                         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 688                                         vid.softdepthpixels = (unsigned int *)calloc(4, vid.width * vid.height);
 689                                 }
 690                         }
 691                         break;
 692                 case DestroyNotify:
 693                         // window has been destroyed
 694                         Sys_Quit(0);
 695                         break;
 696                 case ClientMessage:
 697                         // window manager messages
 698                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 699                                 Sys_Quit(0);
 700                         break;
 701                 case MapNotify:
 702                         if (vid_isoverrideredirect)
 703                                 break;
 704                         // window restored
 705                         vid_hidden = false;
 706
 707                         if(vid_isvidmodefullscreen)
 708                         {
 709                                 // set our video mode
 710                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 711
 712                                 // Move the viewport to top left
 713                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 714                         }
 715
 716                         if(vid_isdesktopfullscreen)
 717                         {
 718                                 // make sure it's fullscreen
 719                                 XEvent event;
 720                                 event.type = ClientMessage;
 721                                 event.xclient.serial = 0;
 722                                 event.xclient.send_event = True;
 723                                 event.xclient.message_type = net_wm_state_atom;
 724                                 event.xclient.window = win;
 725                                 event.xclient.format = 32;
 726                                 event.xclient.data.l[0] = 1;
 727                                 event.xclient.data.l[1] = net_wm_state_fullscreen_atom;
 728                                 event.xclient.data.l[2] = 0;
 729                                 event.xclient.data.l[3] = 1;
 730                                 event.xclient.data.l[4] = 0;
 731                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 732                         }
 733
 734                         dowarp = true;
 735
 736                         break;
 737                 case UnmapNotify:
 738                         if (vid_isoverrideredirect)
 739                                 break;
 740                         // window iconified/rolledup/whatever
 741                         vid_hidden = true;
 742
 743                         if(vid_isvidmodefullscreen)
 744                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 745
 746                         break;
 747                 case FocusIn:
 748                         if (vid_isoverrideredirect)
 749                                 break;
 750                         // window is now the input focus
 751                         vid_activewindow = true;
 752                         break;
 753                 case FocusOut:
 754                         if (vid_isoverrideredirect)
 755                                 break;
 756
 757                         if(vid_isdesktopfullscreen && event.xfocus.mode == NotifyNormal)
 758                         {
 759                                 // iconify netwm fullscreen window when it loses focus
 760                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 761                                 XEvent event;
 762                                 event.type = ClientMessage;
 763                                 event.xclient.serial = 0;
 764                                 event.xclient.send_event = True;
 765                                 event.xclient.message_type = net_wm_state_atom;
 766                                 event.xclient.window = win;
 767                                 event.xclient.format = 32;
 768                                 event.xclient.data.l[0] = 1;
 769                                 event.xclient.data.l[1] = net_wm_state_hidden_atom;
 770                                 event.xclient.data.l[2] = 0;
 771                                 event.xclient.data.l[3] = 1;
 772                                 event.xclient.data.l[4] = 0;
 773                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 774                         }
 775
 776                         // window is no longer the input focus
 777                         vid_activewindow = false;
 778
 779                         break;
 780                 case EnterNotify:
 781                         // mouse entered window
 782                         break;
 783                 case LeaveNotify:
 784                         // mouse left window
 785                         break;
 786                 default:
 787                         if(vidx11_shmevent >= 0 && event.type == vidx11_shmevent)
 788                                 --vidx11_shmwait;
 789                         break;
 790                 }
 791         }
 792
 793         if (dowarp)
 794         {
 795                 /* move the mouse to the window center again */
 796                 // we'll catch the warp motion by its send_event flag, updating the
 797                 // stored mouse position without adding any delta motion
 798                 XEvent event;
 799                 event.type = MotionNotify;
 800                 event.xmotion.display = vidx11_display;
 801                 event.xmotion.window = win;
 802                 event.xmotion.x = vid.width / 2;
 803                 event.xmotion.y = vid.height / 2;
 804                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 805                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 806         }
 807 }
 808
 809 static void *prjobj = NULL;
 810
 811 static void GL_CloseLibrary(void)
 812 {
 813         if (prjobj)
 814                 dlclose(prjobj);
 815         prjobj = NULL;
 816         gl_driver[0] = 0;
 817         qglXGetProcAddressARB = NULL;
 818         gl_extensions = "";
 819         gl_platform = "";
 820         gl_platformextensions = "";
 821 }
 822
 823 static int GL_OpenLibrary(const char *name)
 824 {
 825         Con_Printf("Loading OpenGL driver %s\n", name);
 826         GL_CloseLibrary();
 827         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 828         {
 829                 Con_Printf("Unable to open symbol list for %s\n", name);
 830                 return false;
 831         }
 832         strlcpy(gl_driver, name, sizeof(gl_driver));
 833         return true;
 834 }
 835
 836 void *GL_GetProcAddress(const char *name)
 837 {
 838         void *p = NULL;
 839         if (qglXGetProcAddressARB != NULL)
 840                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 841         if (p == NULL)
 842                 p = (void *) dlsym(prjobj, name);
 843         return p;
 844 }
 845
 846 void VID_Shutdown(void)
 847 {
 848         if (!vidx11_display)
 849                 return;
 850
 851         VID_EnableJoystick(false);
 852         VID_SetMouse(false, false, false);
 853
 854         // FIXME: glXDestroyContext here?
 855         if (vid_isvidmodefullscreen)
 856                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 857
 858         if(vidx11_gc)
 859                 XFreeGC(vidx11_display, vidx11_gc);
 860         vidx11_gc = NULL;
 861
 862         DestroyXImages();
 863         vidx11_shmevent = -1;
 864         vid.softpixels = NULL;
 865
 866         if (vid.softdepthpixels)
 867                 free(vid.softdepthpixels);
 868         vid.softdepthpixels = NULL;
 869
 870         if (win)
 871                 XDestroyWindow(vidx11_display, win);
 872         XCloseDisplay(vidx11_display);
 873
 874         vid_hidden = true;
 875         vid_isfullscreen = false;
 876         vid_isdesktopfullscreen = false;
 877         vid_isvidmodefullscreen = false;
 878         vid_isoverrideredirect = false;
 879         vidx11_display = NULL;
 880         win = 0;
 881         ctx = NULL;
 882
 883         GL_CloseLibrary();
 884         Key_ClearStates ();
 885 }
 886
 887 static void signal_handler(int sig)
 888 {
 889         Con_Printf("Received signal %d, exiting...\n", sig);
 890         Sys_Quit(1);
 891 }
 892
 893 static void InitSig(void)
 894 {
 895         signal(SIGHUP, signal_handler);
 896         signal(SIGINT, signal_handler);
 897         signal(SIGQUIT, signal_handler);
 898         signal(SIGILL, signal_handler);
 899         signal(SIGTRAP, signal_handler);
 900         signal(SIGIOT, signal_handler);
 901         signal(SIGBUS, signal_handler);
 902         signal(SIGFPE, signal_handler);
 903         signal(SIGSEGV, signal_handler);
 904         signal(SIGTERM, signal_handler);
 905 }
 906
 907 void VID_Finish (void)
 908 {
 909         vid_usevsync = vid_vsync.integer && !cls.timedemo && qglXSwapIntervalSGI;
 910         switch(vid.renderpath)
 911         {
 912                 case RENDERPATH_SOFT:
 913                         if(vidx11_shmevent >= 0) {
 914                                 vidx11_ximage_pos = !vidx11_ximage_pos;
 915                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 916                                 DPSOFTRAST_SetRenderTargets(vid.width, vid.height, vid.softdepthpixels, vid.softpixels, NULL, NULL, NULL);
 917
 918                                 ++vidx11_shmwait;
 919                                 XShmPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height, True);
 920
 921                                 // save mouse motion so we can deal with it later
 922                                 in_mouse_x = 0;
 923                                 in_mouse_y = 0;
 924                                 while(vidx11_shmwait > 1)
 925                                         HandleEvents();
 926                                 in_mouse_x_save += in_mouse_x;
 927                                 in_mouse_y_save += in_mouse_y;
 928                                 in_mouse_x = 0;
 929                                 in_mouse_y = 0;
 930                         } else {
 931                                 // no buffer switching here, we just flush the renderer
 932                                 DPSOFTRAST_Finish();
 933                                 XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height);
 934                         }
 935                         break;
 936
 937                 case RENDERPATH_GL11:
 938                 case RENDERPATH_GL13:
 939                 case RENDERPATH_GL20:
 940                 case RENDERPATH_GLES1:
 941                 case RENDERPATH_GLES2:
 942                         if (vid_usingvsync != vid_usevsync)
 943                         {
 944                                 vid_usingvsync = vid_usevsync;
 945                                 if (qglXSwapIntervalSGI && qglXSwapIntervalSGI (vid_usevsync))
 946                                         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");
 947                         }
 948
 949                         if (!vid_hidden)
 950                         {
 951                                 CHECKGLERROR
 952                                 if (r_speeds.integer == 2 || gl_finish.integer)
 953                                         GL_Finish();
 954                                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 955                         }
 956                         break;
 957
 958                 case RENDERPATH_D3D9:
 959                 case RENDERPATH_D3D10:
 960                 case RENDERPATH_D3D11:
 961                         break;
 962         }
 963
 964         VID_UpdateGamma();
 965 }
 966
 967 void VID_Init(void)
 968 {
 969 #ifdef USEDGA
 970         Cvar_RegisterVariable (&vid_dgamouse);
 971 #endif
 972         Cvar_RegisterVariable (&vid_desktopfullscreen);
 973         InitSig(); // trap evil signals
 974 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 975         if (COM_CheckParm ("-nomouse"))
 976                 mouse_avail = false;
 977         vidx11_shminfo[0].shmid = -1;
 978         vidx11_shminfo[1].shmid = -1;
 979 }
 980
 981 static void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 982 {
 983         *attrib++ = GLX_RGBA;
 984         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
 985         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
 986         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
 987         *attrib++ = GLX_DOUBLEBUFFER;
 988         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
 989         // if stencil is enabled, ask for alpha too
 990         if (stencil)
 991         {
 992                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
 993                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
 994         }
 995         if (stereobuffer)
 996                 *attrib++ = GLX_STEREO;
 997         if (samples > 1)
 998         {
 999                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
1000                 *attrib++ = 1;
1001                 *attrib++ = GLX_SAMPLES_ARB;
1002                 *attrib++ = samples;
1003         }
1004         *attrib++ = None;
1005 }
1006
1007 static qboolean VID_InitModeSoft(viddef_mode_t *mode)
1008 {
1009         int i, j;
1010         XSetWindowAttributes attr;
1011         XClassHint *clshints;
1012         XWMHints *wmhints;
1013         XSizeHints *szhints;
1014         unsigned long mask;
1015         int MajorVersion, MinorVersion;
1016         char *xpm;
1017         char **idata;
1018         unsigned char *data;
1019         XGCValues gcval;
1020         const char *dpyname;
1021         char vabuf[1024];
1022
1023         vid_isfullscreen = false;
1024         vid_isdesktopfullscreen = false;
1025         vid_isvidmodefullscreen = false;
1026         vid_isoverrideredirect = false;
1027
1028         if (!(vidx11_display = XOpenDisplay(NULL)))
1029         {
1030                 Con_Print("Couldn't open the X display\n");
1031                 return false;
1032         }
1033         dpyname = XDisplayName(NULL);
1034
1035         // LordHavoc: making the close button on a window do the right thing
1036         // seems to involve this mess, sigh...
1037         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1038         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1039         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1040         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1041         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1042         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1043
1044         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1045         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1046
1047         vidx11_screen = DefaultScreen(vidx11_display);
1048         root = RootWindow(vidx11_display, vidx11_screen);
1049
1050         desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
1051         desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
1052         desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
1053         desktop_mode.refreshrate = 60; // FIXME
1054         desktop_mode.pixelheight_num = 1; // FIXME
1055         desktop_mode.pixelheight_denom = 1; // FIXME
1056
1057         // Get video mode list
1058         MajorVersion = MinorVersion = 0;
1059         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1060                 vidmode_ext = false;
1061         else
1062         {
1063                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1064                 vidmode_ext = true;
1065         }
1066
1067         if (mode->fullscreen)
1068         {
1069                 if(vid_desktopfullscreen.integer)
1070                 {
1071                         // TODO detect WM support
1072                         vid_isdesktopfullscreen = true;
1073                         vid_isfullscreen = true;
1074                         // width and height will be filled in later
1075                         Con_DPrintf("Using NetWM fullscreen mode\n");
1076                 }
1077
1078                 if(!vid_isfullscreen && vidmode_ext)
1079                 {
1080                         int best_fit, best_dist, dist, x, y;
1081
1082                         // Are we going fullscreen?  If so, let's change video mode
1083                         XF86VidModeModeLine *current_vidmode;
1084                         XF86VidModeModeInfo **vidmodes;
1085                         int num_vidmodes;
1086
1087                         // This nice hack comes from the SDL source code
1088                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1089                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1090
1091                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1092                         best_dist = 0;
1093                         best_fit = -1;
1094
1095                         for (i = 0; i < num_vidmodes; i++)
1096                         {
1097                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1098                                         continue;
1099
1100                                 x = mode->width - vidmodes[i]->hdisplay;
1101                                 y = mode->height - vidmodes[i]->vdisplay;
1102                                 dist = (x * x) + (y * y);
1103                                 if (best_fit == -1 || dist < best_dist)
1104                                 {
1105                                         best_dist = dist;
1106                                         best_fit = i;
1107                                 }
1108                         }
1109
1110                         if (best_fit != -1)
1111                         {
1112                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1113                                 // to width/height =, so the window will take the full area of
1114                                 // the mode chosen
1115                                 mode->width = vidmodes[best_fit]->hdisplay;
1116                                 mode->height = vidmodes[best_fit]->vdisplay;
1117
1118                                 // change to the mode
1119                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1120                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1121                                 vid_isvidmodefullscreen = true;
1122                                 vid_isfullscreen = true;
1123
1124                                 // Move the viewport to top left
1125                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1126                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1127                         }
1128
1129                         free(vidmodes);
1130                 }
1131
1132                 if(!vid_isfullscreen)
1133                 {
1134                         // sorry, no FS available
1135                         // use the full desktop resolution
1136                         vid_isfullscreen = true;
1137                         // width and height will be filled in later
1138                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1139                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1140                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1141                 }
1142         }
1143
1144         // LordHavoc: save the visual for use in gamma ramp settings later
1145         vidx11_visual = DefaultVisual(vidx11_display, vidx11_screen);
1146
1147         /* window attributes */
1148         attr.background_pixel = 0;
1149         attr.border_pixel = 0;
1150         // LordHavoc: save the colormap for later, too
1151         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, vidx11_visual, AllocNone);
1152         attr.event_mask = X_MASK;
1153
1154         if (mode->fullscreen)
1155         {
1156                 if(vid_isdesktopfullscreen)
1157                 {
1158                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1159                         attr.backing_store = NotUseful;
1160                         attr.save_under = False;
1161                 }
1162                 else
1163                 {
1164                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1165                         attr.override_redirect = True;
1166                         attr.backing_store = NotUseful;
1167                         attr.save_under = False;
1168                         vid_isoverrideredirect = true; // so it knows to grab
1169                 }
1170         }
1171         else
1172         {
1173                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1174         }
1175
1176         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, CopyFromParent, InputOutput, vidx11_visual, mask, &attr);
1177
1178         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1179         if(data)
1180         {
1181                 // use _NET_WM_ICON too
1182                 static long netwm_icon[MAX_NETWM_ICON];
1183                 int pos = 0;
1184                 int i = 1;
1185
1186                 while(data)
1187                 {
1188                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1189                         {
1190                                 netwm_icon[pos++] = image_width;
1191                                 netwm_icon[pos++] = image_height;
1192                                 for(i = 0; i < image_height; ++i)
1193                                         for(j = 0; j < image_width; ++j)
1194                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1195                         }
1196                         else
1197                         {
1198                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1199                         }
1200                         ++i;
1201                         Mem_Free(data);
1202                         data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
1203                 }
1204                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1205         }
1206
1207         // fallthrough for old window managers
1208         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1209         idata = NULL;
1210         if(xpm)
1211                 idata = XPM_DecodeString(xpm);
1212         if(!idata)
1213                 idata = ENGINE_ICON;
1214
1215         wmhints = XAllocWMHints();
1216         if(XpmCreatePixmapFromData(vidx11_display, win,
1217                 idata,
1218                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1219                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1220
1221         if(xpm)
1222                 Mem_Free(xpm);
1223
1224         clshints = XAllocClassHint();
1225         clshints->res_name = strdup(gamename);
1226         clshints->res_class = strdup("DarkPlaces");
1227
1228         szhints = XAllocSizeHints();
1229         if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
1230         {
1231                 szhints->min_width = szhints->max_width = mode->width;
1232                 szhints->min_height = szhints->max_height = mode->height;
1233                 szhints->flags |= PMinSize | PMaxSize;
1234         }
1235
1236         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1237         // strdup() allocates using malloc(), should be freed with free()
1238         free(clshints->res_name);
1239         free(clshints->res_class);
1240         XFree(clshints);
1241         XFree(wmhints);
1242         XFree(szhints);
1243
1244         //XStoreName(vidx11_display, win, gamename);
1245         XMapWindow(vidx11_display, win);
1246
1247         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1248
1249         if (vid_isoverrideredirect)
1250         {
1251                 XMoveWindow(vidx11_display, win, 0, 0);
1252                 XRaiseWindow(vidx11_display, win);
1253                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1254                 XFlush(vidx11_display);
1255         }
1256
1257         if(vid_isvidmodefullscreen)
1258         {
1259                 // Move the viewport to top left
1260                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1261         }
1262
1263         //XSync(vidx11_display, False);
1264
1265         // COMMANDLINEOPTION: Unix GLX: -noshm disables XShm extensioon
1266         if(dpyname && dpyname[0] == ':' && dpyname[1] && (dpyname[2] < '0' || dpyname[2] > '9') && !COM_CheckParm("-noshm") && XShmQueryExtension(vidx11_display))
1267         {
1268                 Con_Printf("Using XShm\n");
1269                 vidx11_shmevent = XShmGetEventBase(vidx11_display) + ShmCompletion;
1270         }
1271         else
1272         {
1273                 Con_Printf("Not using XShm\n");
1274                 vidx11_shmevent = -1;
1275         }
1276         BuildXImages(mode->width, mode->height);
1277
1278         vidx11_ximage_pos = 0;
1279         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
1280         vidx11_shmwait = 0;
1281         vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
1282
1283         memset(&gcval, 0, sizeof(gcval));
1284         vidx11_gc = XCreateGC(vidx11_display, win, 0, &gcval);
1285
1286         if (DPSOFTRAST_Init(mode->width, mode->height, vid_soft_threads.integer, vid_soft_interlace.integer, (unsigned int *)vid.softpixels, (unsigned int *)vid.softdepthpixels) < 0)
1287         {
1288                 Con_Printf("Failed to initialize software rasterizer\n");
1289                 VID_Shutdown();
1290                 return false;
1291         }
1292
1293         XSync(vidx11_display, False);
1294
1295         vid_usingmousegrab = false;
1296         vid_usingmouse = false;
1297         vid_usinghidecursor = false;
1298         vid_usingvsync = false;
1299         vid_hidden = false;
1300         vid_activewindow = true;
1301 #ifdef USEDGA
1302         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1303         if (!vid_x11_dgasupported)
1304                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1305 #endif
1306
1307         VID_Soft_SharedSetup();
1308
1309         return true;
1310 }
1311
1312 static qboolean VID_InitModeGL(viddef_mode_t *mode)
1313 {
1314         int i, j;
1315         int attrib[32];
1316         XSetWindowAttributes attr;
1317         XClassHint *clshints;
1318         XWMHints *wmhints;
1319         XSizeHints *szhints;
1320         unsigned long mask;
1321         XVisualInfo *visinfo;
1322         int MajorVersion, MinorVersion;
1323         const char *drivername;
1324         char *xpm;
1325         char **idata;
1326         unsigned char *data;
1327         char vabuf[1024];
1328
1329         vid_isfullscreen = false;
1330         vid_isdesktopfullscreen = false;
1331         vid_isvidmodefullscreen = false;
1332         vid_isoverrideredirect = false;
1333
1334 #if defined(__APPLE__) && defined(__MACH__)
1335         drivername = "/usr/X11R6/lib/libGL.1.dylib";
1336 #else
1337         drivername = "libGL.so.1";
1338 #endif
1339 // 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
1340 // 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
1341 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
1342         i = COM_CheckParm("-gl_driver");
1343         if (i && i < com_argc - 1)
1344                 drivername = com_argv[i + 1];
1345         if (!GL_OpenLibrary(drivername))
1346         {
1347                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
1348                 return false;
1349         }
1350
1351         if (!(vidx11_display = XOpenDisplay(NULL)))
1352         {
1353                 Con_Print("Couldn't open the X display\n");
1354                 return false;
1355         }
1356
1357         // LordHavoc: making the close button on a window do the right thing
1358         // seems to involve this mess, sigh...
1359         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1360         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1361         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1362         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1363         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1364         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1365
1366         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1367         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1368
1369         vidx11_screen = DefaultScreen(vidx11_display);
1370         root = RootWindow(vidx11_display, vidx11_screen);
1371
1372         desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
1373         desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
1374         desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
1375         desktop_mode.refreshrate = 60; // FIXME
1376         desktop_mode.pixelheight_num = 1; // FIXME
1377         desktop_mode.pixelheight_denom = 1; // FIXME
1378
1379         // Get video mode list
1380         MajorVersion = MinorVersion = 0;
1381         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1382                 vidmode_ext = false;
1383         else
1384         {
1385                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1386                 vidmode_ext = true;
1387         }
1388
1389         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
1390          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
1391          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
1392          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
1393          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
1394          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
1395         {
1396                 Con_Printf("glX functions not found in %s\n", gl_driver);
1397                 return false;
1398         }
1399
1400         VID_BuildGLXAttrib(attrib, mode->bitsperpixel == 32, mode->stereobuffer, mode->samples);
1401         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
1402         if (!visinfo)
1403         {
1404                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
1405                 return false;
1406         }
1407
1408         if (mode->fullscreen)
1409         {
1410                 if(vid_desktopfullscreen.integer)
1411                 {
1412                         // TODO detect WM support
1413                         vid_isdesktopfullscreen = true;
1414                         vid_isfullscreen = true;
1415                         // width and height will be filled in later
1416                         Con_DPrintf("Using NetWM fullscreen mode\n");
1417                 }
1418
1419                 if(!vid_isfullscreen && vidmode_ext)
1420                 {
1421                         int best_fit, best_dist, dist, x, y;
1422
1423                         // Are we going fullscreen?  If so, let's change video mode
1424                         XF86VidModeModeLine *current_vidmode;
1425                         XF86VidModeModeInfo **vidmodes;
1426                         int num_vidmodes;
1427
1428                         // This nice hack comes from the SDL source code
1429                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1430                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1431
1432                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1433                         best_dist = 0;
1434                         best_fit = -1;
1435
1436                         for (i = 0; i < num_vidmodes; i++)
1437                         {
1438                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1439                                         continue;
1440
1441                                 x = mode->width - vidmodes[i]->hdisplay;
1442                                 y = mode->height - vidmodes[i]->vdisplay;
1443                                 dist = (x * x) + (y * y);
1444                                 if (best_fit == -1 || dist < best_dist)
1445                                 {
1446                                         best_dist = dist;
1447                                         best_fit = i;
1448                                 }
1449                         }
1450
1451                         if (best_fit != -1)
1452                         {
1453                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1454                                 // to width/height =, so the window will take the full area of
1455                                 // the mode chosen
1456                                 mode->width = vidmodes[best_fit]->hdisplay;
1457                                 mode->height = vidmodes[best_fit]->vdisplay;
1458
1459                                 // change to the mode
1460                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1461                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1462                                 vid_isvidmodefullscreen = true;
1463                                 vid_isfullscreen = true;
1464
1465                                 // Move the viewport to top left
1466                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1467                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1468                         }
1469
1470                         free(vidmodes);
1471                 }
1472
1473                 if(!vid_isfullscreen)
1474                 {
1475                         // sorry, no FS available
1476                         // use the full desktop resolution
1477                         vid_isfullscreen = true;
1478                         // width and height will be filled in later
1479                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1480                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1481                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1482                 }
1483         }
1484
1485         // LordHavoc: save the visual for use in gamma ramp settings later
1486         vidx11_visual = visinfo->visual;
1487
1488         /* window attributes */
1489         attr.background_pixel = 0;
1490         attr.border_pixel = 0;
1491         // LordHavoc: save the colormap for later, too
1492         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
1493         attr.event_mask = X_MASK;
1494
1495         if (mode->fullscreen)
1496         {
1497                 if(vid_isdesktopfullscreen)
1498                 {
1499                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1500                         attr.backing_store = NotUseful;
1501                         attr.save_under = False;
1502                 }
1503                 else
1504                 {
1505                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1506                         attr.override_redirect = True;
1507                         attr.backing_store = NotUseful;
1508                         attr.save_under = False;
1509                         vid_isoverrideredirect = true; // so it knows to grab
1510                 }
1511         }
1512         else
1513         {
1514                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1515         }
1516
1517         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
1518
1519         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1520         if(data)
1521         {
1522                 // use _NET_WM_ICON too
1523                 static long netwm_icon[MAX_NETWM_ICON];
1524                 int pos = 0;
1525                 int i = 1;
1526
1527                 while(data)
1528                 {
1529                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1530                         {
1531                                 netwm_icon[pos++] = image_width;
1532                                 netwm_icon[pos++] = image_height;
1533                                 for(i = 0; i < image_height; ++i)
1534                                         for(j = 0; j < image_width; ++j)
1535                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1536                         }
1537                         else
1538                         {
1539                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1540                         }
1541                         ++i;
1542                         Mem_Free(data);
1543                         data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
1544                 }
1545                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1546         }
1547
1548         // fallthrough for old window managers
1549         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1550         idata = NULL;
1551         if(xpm)
1552                 idata = XPM_DecodeString(xpm);
1553         if(!idata)
1554                 idata = ENGINE_ICON;
1555
1556         wmhints = XAllocWMHints();
1557         if(XpmCreatePixmapFromData(vidx11_display, win,
1558                 idata,
1559                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1560                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1561
1562         if(xpm)
1563                 Mem_Free(xpm);
1564
1565         clshints = XAllocClassHint();
1566         clshints->res_name = strdup(gamename);
1567         clshints->res_class = strdup("DarkPlaces");
1568
1569         szhints = XAllocSizeHints();
1570         if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
1571         {
1572                 szhints->min_width = szhints->max_width = mode->width;
1573                 szhints->min_height = szhints->max_height = mode->height;
1574                 szhints->flags |= PMinSize | PMaxSize;
1575         }
1576
1577         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1578         // strdup() allocates using malloc(), should be freed with free()
1579         free(clshints->res_name);
1580         free(clshints->res_class);
1581         XFree(clshints);
1582         XFree(wmhints);
1583         XFree(szhints);
1584
1585         //XStoreName(vidx11_display, win, gamename);
1586         XMapWindow(vidx11_display, win);
1587
1588         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1589
1590         if (vid_isoverrideredirect)
1591         {
1592                 XMoveWindow(vidx11_display, win, 0, 0);
1593                 XRaiseWindow(vidx11_display, win);
1594                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1595                 XFlush(vidx11_display);
1596         }
1597
1598         if(vid_isvidmodefullscreen)
1599         {
1600                 // Move the viewport to top left
1601                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1602         }
1603
1604         //XSync(vidx11_display, False);
1605
1606         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
1607         XFree(visinfo); // glXChooseVisual man page says to use XFree to free visinfo
1608         if (!ctx)
1609         {
1610                 Con_Printf ("glXCreateContext failed\n");
1611                 return false;
1612         }
1613
1614         if (!qglXMakeCurrent(vidx11_display, win, ctx))
1615         {
1616                 Con_Printf ("glXMakeCurrent failed\n");
1617                 return false;
1618         }
1619
1620         XSync(vidx11_display, False);
1621
1622         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1623         {
1624                 Con_Printf ("glGetString not found in %s\n", gl_driver);
1625                 return false;
1626         }
1627
1628         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
1629         gl_platform = "GLX";
1630         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
1631
1632 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1633 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1634 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1635         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
1636 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
1637 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
1638 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
1639         GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
1640
1641         vid_usingmousegrab = false;
1642         vid_usingmouse = false;
1643         vid_usinghidecursor = false;
1644         vid_usingvsync = false;
1645         vid_hidden = false;
1646         vid_activewindow = true;
1647 #ifdef USEDGA
1648         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1649         if (!vid_x11_dgasupported)
1650                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1651 #endif
1652
1653         GL_Init();
1654         return true;
1655 }
1656
1657 qboolean VID_InitMode(viddef_mode_t *mode)
1658 {
1659 #ifdef SSE_POSSIBLE
1660         if (vid_soft.integer)
1661                 return VID_InitModeSoft(mode);
1662         else
1663 #endif
1664                 return VID_InitModeGL(mode);
1665 }
1666
1667 void Sys_SendKeyEvents(void)
1668 {
1669         static qboolean sound_active = true;
1670
1671         // enable/disable sound on focus gain/loss
1672         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
1673         {
1674                 if (!sound_active)
1675                 {
1676                         S_UnblockSound ();
1677                         sound_active = true;
1678                 }
1679         }
1680         else
1681         {
1682                 if (sound_active)
1683                 {
1684                         S_BlockSound ();
1685                         sound_active = false;
1686                 }
1687         }
1688
1689         HandleEvents();
1690 }
1691
1692 void VID_BuildJoyState(vid_joystate_t *joystate)
1693 {
1694         VID_Shared_BuildJoyState_Begin(joystate);
1695         VID_Shared_BuildJoyState_Finish(joystate);
1696 }
1697
1698 void VID_EnableJoystick(qboolean enable)
1699 {
1700         int index = joy_enable.integer > 0 ? joy_index.integer : -1;
1701         qboolean success = false;
1702         int sharedcount = 0;
1703         sharedcount = VID_Shared_SetJoystick(index);
1704         if (index >= 0 && index < sharedcount)
1705                 success = true;
1706
1707         // update cvar containing count of XInput joysticks
1708         if (joy_detected.integer != sharedcount)
1709                 Cvar_SetValueQuick(&joy_detected, sharedcount);
1710
1711         Cvar_SetValueQuick(&joy_active, success ? 1 : 0);
1712 }
1713
1714 void IN_Move (void)
1715 {
1716         vid_joystate_t joystate;
1717         VID_EnableJoystick(true);
1718         VID_BuildJoyState(&joystate);
1719         VID_ApplyJoyState(&joystate);
1720 }
1721
1722 vid_mode_t *VID_GetDesktopMode(void)
1723 {
1724         return &desktop_mode;
1725 }
1726
1727 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1728 {
1729         if(vidmode_ext)
1730         {
1731                 int i, bpp;
1732                 size_t k;
1733                 XF86VidModeModeInfo **vidmodes;
1734                 int num_vidmodes;
1735
1736                 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1737                 k = 0;
1738                 for (i = 0; i < num_vidmodes; i++)
1739                 {
1740                         if(k >= maxcount)
1741                                 break;
1742                         // we don't get bpp info, so let's just assume all of 8, 15, 16, 24, 32 work
1743                         for(bpp = 8; bpp <= 32; bpp = ((bpp == 8) ? 15 : (bpp & 0xF8) + 8))
1744                         {
1745                                 if(k >= maxcount)
1746                                         break;
1747                                 modes[k].width = vidmodes[i]->hdisplay;
1748                                 modes[k].height = vidmodes[i]->vdisplay;
1749                                 modes[k].bpp = 8;
1750                                 if(vidmodes[i]->dotclock && vidmodes[i]->htotal && vidmodes[i]->vtotal)
1751                                         modes[k].refreshrate = vidmodes[i]->dotclock / vidmodes[i]->htotal / vidmodes[i]->vtotal;
1752                                 else
1753                                         modes[k].refreshrate = 60;
1754                                 modes[k].pixelheight_num = 1;
1755                                 modes[k].pixelheight_denom = 1; // xvidmode does not provide this
1756                                 ++k;
1757                         }
1758                 }
1759                 // manpage of XF86VidModeGetAllModeLines says it should be freed by the caller
1760                 XFree(vidmodes);
1761                 return k;
1762         }
1763         return 0; // FIXME implement this
1764 }