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 #include <signal.h>
  21
  22 #include <dlfcn.h>
  23
  24 #include <X11/Xlib.h>
  25 #include <X11/Xutil.h>
  26 #include <X11/Xatom.h>
  27 #include <X11/XKBlib.h> // TODO possibly ifdef this out on non-supporting systems... Solaris (as always)?
  28 #include <GL/glx.h>
  29
  30 #include "quakedef.h"
  31 #include "dpsoftrast.h"
  32
  33 #include <X11/keysym.h>
  34 #include <X11/cursorfont.h>
  35 #include <X11/xpm.h>
  36
  37 #include <X11/extensions/XShm.h>
  38 #if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
  39 #include <X11/extensions/xf86dga.h>
  40 #endif
  41 #include <X11/extensions/xf86vmode.h>
  42
  43 #include <sys/ipc.h>
  44 #include <sys/shm.h>
  45 #include <X11/extensions/XShm.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 static XImage *vidx11_ximage[2] = { NULL, NULL };
  92 static int vidx11_ximage_pos = 0;
  93 static XShmSegmentInfo vidx11_shminfo[2];
  94 static int vidx11_shmevent = -1;
  95 static int vidx11_shmwait = 0; // number of frames outstanding
  96
  97 Atom wm_delete_window_atom;
  98 Atom net_wm_state_atom;
  99 Atom net_wm_state_hidden_atom;
 100 Atom net_wm_state_fullscreen_atom;
 101 Atom net_wm_icon;
 102 Atom cardinal;
 103
 104 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
 105 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
 106                     PointerMotionMask | ButtonMotionMask)
 107 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
 108                 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
 109                 LeaveWindowMask)
 110
 111
 112 static qboolean mouse_avail = true;
 113 static qboolean vid_usingmousegrab = false;
 114 static qboolean vid_usingmouse = false;
 115 static qboolean vid_usinghidecursor = false;
 116 static qboolean vid_usingvsync = false;
 117 static qboolean vid_usevsync = false;
 118 static qboolean vid_x11_hardwaregammasupported = false;
 119 static qboolean vid_x11_dgasupported = false;
 120 static int vid_x11_gammarampsize = 0;
 121
 122 #if !defined(__APPLE__) && !defined(SUNOS)
 123 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 124 static qboolean vid_usingdgamouse = false;
 125 #endif
 126 cvar_t vid_netwmfullscreen = {CVAR_SAVE, "vid_netwmfullscreen", "0", "make use _NET_WM_STATE_FULLSCREEN; turn this off if fullscreen does not work for you"};
 127
 128 qboolean vidmode_ext = false;
 129
 130 static int win_x, win_y;
 131
 132 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 133 static qboolean vid_isfullscreen = false;
 134 static qboolean vid_isvidmodefullscreen = false;
 135 static qboolean vid_isnetwmfullscreen = false;
 136 static qboolean vid_isoverrideredirect = false;
 137
 138 static Visual *vidx11_visual;
 139 static Colormap vidx11_colormap;
 140
 141 /*-----------------------------------------------------------------------*/
 142 //
 143
 144 long keysym2ucs(KeySym keysym);
 145 void DP_Xutf8LookupString(XKeyEvent * ev,
 146                          Uchar *uch,
 147                          KeySym * keysym_return,
 148                          Status * status_return)
 149 {
 150         int rc;
 151         KeySym keysym;
 152         int codepoint;
 153         char buffer[64];
 154         int nbytes = sizeof(buffer);
 155
 156         rc = XLookupString(ev, buffer, nbytes, &keysym, NULL);
 157
 158         if (rc > 0) {
 159                 codepoint = buffer[0] & 0xFF;
 160         } else {
 161                 codepoint = keysym2ucs(keysym);
 162         }
 163
 164         if (codepoint < 0) {
 165                 if (keysym == None) {
 166                         *status_return = XLookupNone;
 167                 } else {
 168                         *status_return = XLookupKeySym;
 169                         *keysym_return = keysym;
 170                 }
 171                 *uch = 0;
 172                 return;
 173         }
 174
 175         *uch = codepoint;
 176
 177         if (keysym != None) {
 178                 *keysym_return = keysym;
 179                 *status_return = XLookupBoth;
 180         } else {
 181                 *status_return = XLookupChars;
 182         }
 183 }
 184 static int XLateKey(XKeyEvent *ev, Uchar *ascii)
 185 {
 186         int key = 0;
 187         //char buf[64];
 188         KeySym keysym, shifted;
 189         Status status;
 190
 191         keysym = XLookupKeysym (ev, 0);
 192         DP_Xutf8LookupString(ev, ascii, &shifted, &status);
 193
 194         switch(keysym)
 195         {
 196                 case XK_KP_Page_Up:      key = K_KP_PGUP; break;
 197                 case XK_Page_Up:         key = K_PGUP; break;
 198
 199                 case XK_KP_Page_Down: key = K_KP_PGDN; break;
 200                 case XK_Page_Down:       key = K_PGDN; break;
 201
 202                 case XK_KP_Home: key = K_KP_HOME; break;
 203                 case XK_Home:    key = K_HOME; break;
 204
 205                 case XK_KP_End:  key = K_KP_END; break;
 206                 case XK_End:     key = K_END; break;
 207
 208                 case XK_KP_Left: key = K_KP_LEFTARROW; break;
 209                 case XK_Left:    key = K_LEFTARROW; break;
 210
 211                 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
 212                 case XK_Right:  key = K_RIGHTARROW;             break;
 213
 214                 case XK_KP_Down: key = K_KP_DOWNARROW; break;
 215                 case XK_Down:    key = K_DOWNARROW; break;
 216
 217                 case XK_KP_Up:   key = K_KP_UPARROW; break;
 218                 case XK_Up:              key = K_UPARROW;        break;
 219
 220                 case XK_Escape: key = K_ESCAPE;         break;
 221
 222                 case XK_KP_Enter: key = K_KP_ENTER;     break;
 223                 case XK_Return: key = K_ENTER;           break;
 224
 225                 case XK_Tab:            key = K_TAB;                     break;
 226
 227                 case XK_F1:              key = K_F1;                            break;
 228
 229                 case XK_F2:              key = K_F2;                            break;
 230
 231                 case XK_F3:              key = K_F3;                            break;
 232
 233                 case XK_F4:              key = K_F4;                            break;
 234
 235                 case XK_F5:              key = K_F5;                            break;
 236
 237                 case XK_F6:              key = K_F6;                            break;
 238
 239                 case XK_F7:              key = K_F7;                            break;
 240
 241                 case XK_F8:              key = K_F8;                            break;
 242
 243                 case XK_F9:              key = K_F9;                            break;
 244
 245                 case XK_F10:            key = K_F10;                     break;
 246
 247                 case XK_F11:            key = K_F11;                     break;
 248
 249                 case XK_F12:            key = K_F12;                     break;
 250
 251                 case XK_BackSpace: key = K_BACKSPACE; break;
 252
 253                 case XK_KP_Delete: key = K_KP_DEL; break;
 254                 case XK_Delete: key = K_DEL; break;
 255
 256                 case XK_Pause:  key = K_PAUSE;           break;
 257
 258                 case XK_Shift_L:
 259                 case XK_Shift_R:        key = K_SHIFT;          break;
 260
 261                 case XK_Execute:
 262                 case XK_Control_L:
 263                 case XK_Control_R:      key = K_CTRL;            break;
 264
 265                 case XK_Alt_L:
 266                 case XK_Meta_L:
 267                 case XK_ISO_Level3_Shift:
 268                 case XK_Alt_R:
 269                 case XK_Meta_R: key = K_ALT;                    break;
 270
 271                 case XK_KP_Begin: key = K_KP_5; break;
 272
 273                 case XK_Insert:key = K_INS; break;
 274                 case XK_KP_Insert: key = K_KP_INS; break;
 275
 276                 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
 277                 case XK_KP_Add:  key = K_KP_PLUS; break;
 278                 case XK_KP_Subtract: key = K_KP_MINUS; break;
 279                 case XK_KP_Divide: key = K_KP_SLASH; break;
 280
 281                 case XK_asciicircum:    *ascii = key = '^'; break; // for some reason, XLookupString returns "" on this one for Grunt|2
 282
 283                 case XK_section:        *ascii = key = '~'; break;
 284
 285                 default:
 286                         if (keysym < 32)
 287                                 break;
 288
 289                         if (keysym >= 'A' && keysym <= 'Z')
 290                                 key = keysym - 'A' + 'a';
 291                         else
 292                                 key = keysym;
 293
 294                         break;
 295         }
 296
 297         return key;
 298 }
 299
 300 static Cursor CreateNullCursor(Display *display, Window root)
 301 {
 302         Pixmap cursormask;
 303         XGCValues xgc;
 304         GC gc;
 305         XColor dummycolour;
 306         Cursor cursor;
 307
 308         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 309         xgc.function = GXclear;
 310         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 311         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 312         dummycolour.pixel = 0;
 313         dummycolour.red = 0;
 314         dummycolour.flags = 04;
 315         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 316         XFreePixmap(display,cursormask);
 317         XFreeGC(display,gc);
 318         return cursor;
 319 }
 320
 321 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 322 {
 323         static int originalmouseparms_num;
 324         static int originalmouseparms_denom;
 325         static int originalmouseparms_threshold;
 326         static qboolean restore_spi;
 327
 328 #if !defined(__APPLE__) && !defined(SUNOS)
 329         qboolean usedgamouse;
 330 #endif
 331
 332         if (!vidx11_display || !win)
 333                 return;
 334
 335         if (relative)
 336                 fullscreengrab = true;
 337
 338         if (!mouse_avail)
 339                 fullscreengrab = relative = hidecursor = false;
 340
 341 #if !defined(__APPLE__) && !defined(SUNOS)
 342         usedgamouse = relative && vid_dgamouse.integer;
 343         if (!vid_x11_dgasupported)
 344                 usedgamouse = false;
 345         if (fullscreengrab && vid_usingmouse && (vid_usingdgamouse != usedgamouse))
 346                 VID_SetMouse(false, false, false); // ungrab first!
 347 #endif
 348
 349         if (vid_usingmousegrab != fullscreengrab)
 350         {
 351                 vid_usingmousegrab = fullscreengrab;
 352                 cl_ignoremousemoves = 2;
 353                 if (fullscreengrab)
 354                 {
 355                         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 356                         if (vid_grabkeyboard.integer || vid_isoverrideredirect)
 357                                 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 358                 }
 359                 else
 360                 {
 361                         XUngrabPointer(vidx11_display, CurrentTime);
 362                         XUngrabKeyboard(vidx11_display, CurrentTime);
 363                 }
 364         }
 365
 366         if (relative)
 367         {
 368                 if (!vid_usingmouse)
 369                 {
 370                         XWindowAttributes attribs_1;
 371                         XSetWindowAttributes attribs_2;
 372
 373                         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 374                         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 375                         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 376
 377 #if !defined(__APPLE__) && !defined(SUNOS)
 378                         vid_usingdgamouse = usedgamouse;
 379                         if (usedgamouse)
 380                         {
 381                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 382                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 383                         }
 384                         else
 385 #endif
 386                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 387
 388 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
 389 #if !defined(__APPLE__) && !defined(SUNOS)
 390                         if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 391 #else
 392                         if (!COM_CheckParm ("-noforcemparms"))
 393 #endif
 394                         {
 395                                 XGetPointerControl(vidx11_display, &originalmouseparms_num, &originalmouseparms_denom, &originalmouseparms_threshold);
 396                                 XChangePointerControl (vidx11_display, true, false, 1, 1, -1); // TODO maybe change threshold here, or remove this comment
 397                                 restore_spi = true;
 398                         }
 399                         else
 400                                 restore_spi = false;
 401
 402                         cl_ignoremousemoves = 2;
 403                         vid_usingmouse = true;
 404                 }
 405         }
 406         else
 407         {
 408                 if (vid_usingmouse)
 409                 {
 410 #if !defined(__APPLE__) && !defined(SUNOS)
 411                         if (vid_usingdgamouse)
 412                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 413                         vid_usingdgamouse = false;
 414 #endif
 415                         cl_ignoremousemoves = 2;
 416
 417                         if (restore_spi)
 418                                 XChangePointerControl (vidx11_display, true, true, originalmouseparms_num, originalmouseparms_denom, originalmouseparms_threshold);
 419                         restore_spi = false;
 420
 421                         vid_usingmouse = false;
 422                 }
 423         }
 424
 425         if (vid_usinghidecursor != hidecursor)
 426         {
 427                 vid_usinghidecursor = hidecursor;
 428                 if (hidecursor)
 429                         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 430                 else
 431                         XUndefineCursor(vidx11_display, win);
 432         }
 433 }
 434
 435 static keynum_t buttonremap[18] =
 436 {
 437         K_MOUSE1,
 438         K_MOUSE3,
 439         K_MOUSE2,
 440         K_MWHEELUP,
 441         K_MWHEELDOWN,
 442         K_MOUSE4,
 443         K_MOUSE5,
 444         K_MOUSE6,
 445         K_MOUSE7,
 446         K_MOUSE8,
 447         K_MOUSE9,
 448         K_MOUSE10,
 449         K_MOUSE11,
 450         K_MOUSE12,
 451         K_MOUSE13,
 452         K_MOUSE14,
 453         K_MOUSE15,
 454         K_MOUSE16,
 455 };
 456
 457 static qboolean BuildXImages(int w, int h)
 458 {
 459         int i;
 460         if(DefaultDepth(vidx11_display, vidx11_screen) != 32 && DefaultDepth(vidx11_display, vidx11_screen) != 24)
 461         {
 462                 Con_Printf("Sorry, we only support 24bpp and 32bpp modes\n");
 463                 VID_Shutdown();
 464                 return false;
 465         }
 466         // match to dpsoftrast's specs
 467         if(vidx11_visual->red_mask != 0x00FF0000)
 468         {
 469                 Con_Printf("Sorry, we only support BGR visuals\n");
 470                 VID_Shutdown();
 471                 return false;
 472         }
 473         if(vidx11_visual->green_mask != 0x0000FF00)
 474         {
 475                 Con_Printf("Sorry, we only support BGR visuals\n");
 476                 VID_Shutdown();
 477                 return false;
 478         }
 479         if(vidx11_visual->blue_mask != 0x000000FF)
 480         {
 481                 Con_Printf("Sorry, we only support BGR visuals\n");
 482                 VID_Shutdown();
 483                 return false;
 484         }
 485         if(vidx11_shmevent >= 0)
 486         {
 487                 for(i = 0; i < 2; ++i)
 488                 {
 489                         vidx11_shminfo[i].shmid = -1;
 490                         vidx11_ximage[i] = XShmCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, NULL, &vidx11_shminfo[i], w, h);
 491                         if(!vidx11_ximage[i])
 492                         {
 493                                 Con_Printf("Failed to get an XImage segment\n");
 494                                 VID_Shutdown();
 495                                 return false;
 496                         }
 497                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 498                         {
 499                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 500                                 VID_Shutdown();
 501                                 return false;
 502                         }
 503                         vidx11_shminfo[i].shmid = shmget(IPC_PRIVATE, vidx11_ximage[i]->bytes_per_line * vidx11_ximage[i]->height, IPC_CREAT|0777);
 504                         if(vidx11_shminfo[i].shmid < 0)
 505                         {
 506                                 Con_Printf("Failed to get a shm segment\n");
 507                                 VID_Shutdown();
 508                                 return false;
 509                         }
 510                         vidx11_shminfo[i].shmaddr = vidx11_ximage[i]->data = shmat(vidx11_shminfo[i].shmid, NULL, 0);
 511                         if(!vidx11_shminfo[i].shmaddr)
 512                         {
 513                                 Con_Printf("Failed to get a shm segment addresst\n");
 514                                 VID_Shutdown();
 515                                 return false;
 516                         }
 517                         vidx11_shminfo[i].readOnly = True;
 518                         XShmAttach(vidx11_display, &vidx11_shminfo[i]);
 519                 }
 520         }
 521         else
 522         {
 523                 for(i = 0; i < 1; ++i) // we only need one buffer if we don't use Xshm
 524                 {
 525                         char *p = calloc(4, w * h);
 526                         vidx11_shminfo[i].shmid = -1;
 527                         vidx11_ximage[i] = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)p, w, h, 8, 0);
 528                         if(!vidx11_ximage[i])
 529                         {
 530                                 Con_Printf("Failed to get an XImage segment\n");
 531                                 VID_Shutdown();
 532                                 return false;
 533                         }
 534                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 535                         {
 536                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 537                                 VID_Shutdown();
 538                                 return false;
 539                         }
 540                 }
 541         }
 542         return true;
 543 }
 544 static void DestroyXImages(void)
 545 {
 546         int i;
 547         for(i = 0; i < 2; ++i)
 548         {
 549                 if(vidx11_shminfo[i].shmid >= 0)
 550                 {
 551                         XShmDetach(vidx11_display, &vidx11_shminfo[i]);
 552                         XDestroyImage(vidx11_ximage[i]);
 553                         vidx11_ximage[i] = NULL;
 554                         shmdt(vidx11_shminfo[i].shmaddr);
 555                         shmctl(vidx11_shminfo[i].shmid, IPC_RMID, 0);
 556                         vidx11_shminfo[i].shmid = -1;
 557                 }
 558                 if(vidx11_ximage[i])
 559                         XDestroyImage(vidx11_ximage[i]);
 560                 vidx11_ximage[i] = 0;
 561         }
 562 }
 563
 564 static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 565 static void HandleEvents(void)
 566 {
 567         XEvent event;
 568         int key;
 569         Uchar unicode;
 570         qboolean dowarp = false;
 571
 572         if (!vidx11_display)
 573                 return;
 574
 575         in_mouse_x += in_mouse_x_save;
 576         in_mouse_y += in_mouse_y_save;
 577         in_mouse_x_save = 0;
 578         in_mouse_y_save = 0;
 579
 580         while (XPending(vidx11_display))
 581         {
 582                 XNextEvent(vidx11_display, &event);
 583
 584                 switch (event.type)
 585                 {
 586                 case KeyPress:
 587                         // key pressed
 588                         key = XLateKey (&event.xkey, &unicode);
 589                         Key_Event(key, unicode, true);
 590                         break;
 591
 592                 case KeyRelease:
 593                         // key released
 594                         key = XLateKey (&event.xkey, &unicode);
 595                         Key_Event(key, unicode, false);
 596                         break;
 597
 598                 case MotionNotify:
 599                         // mouse moved
 600                         if (vid_usingmouse)
 601                         {
 602 #if !defined(__APPLE__) && !defined(SUNOS)
 603                                 if (vid_usingdgamouse)
 604                                 {
 605                                         in_mouse_x += event.xmotion.x_root;
 606                                         in_mouse_y += event.xmotion.y_root;
 607                                 }
 608                                 else
 609 #endif
 610                                 {
 611                                         if (!event.xmotion.send_event)
 612                                         {
 613                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 614                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 615                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 616                                                 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)
 617                                                         dowarp = true;
 618                                         }
 619                                 }
 620                         }
 621                         in_windowmouse_x = event.xmotion.x;
 622                         in_windowmouse_y = event.xmotion.y;
 623                         break;
 624
 625                 case ButtonPress:
 626                         // mouse button pressed
 627                         if (event.xbutton.button <= 18)
 628                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 629                         else
 630                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 631                         break;
 632
 633                 case ButtonRelease:
 634                         // mouse button released
 635                         if (event.xbutton.button <= 18)
 636                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 637                         else
 638                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 639                         break;
 640
 641                 case CreateNotify:
 642                         // window created
 643                         win_x = event.xcreatewindow.x;
 644                         win_y = event.xcreatewindow.y;
 645                         break;
 646
 647                 case ConfigureNotify:
 648                         // window changed size/location
 649                         win_x = event.xconfigure.x;
 650                         win_y = event.xconfigure.y;
 651                         if((vid_resizable.integer < 2 || vid_isnetwmfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
 652                         {
 653                                 vid.width = event.xconfigure.width;
 654                                 vid.height = event.xconfigure.height;
 655                                 if(vid_isnetwmfullscreen)
 656                                         Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
 657                                 else
 658                                         Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 659
 660                                 DPSOFTRAST_Flush();
 661
 662                                 if(vid.softdepthpixels)
 663                                         free(vid.softdepthpixels);
 664
 665                                 DestroyXImages();
 666                                 XSync(vidx11_display, False);
 667                                 if(!BuildXImages(vid.width, vid.height))
 668                                         return;
 669                                 XSync(vidx11_display, False);
 670
 671                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 672                                 vid.softdepthpixels = (unsigned int *)calloc(4, vid.width * vid.height);
 673                         }
 674                         break;
 675                 case DestroyNotify:
 676                         // window has been destroyed
 677                         Sys_Quit(0);
 678                         break;
 679                 case ClientMessage:
 680                         // window manager messages
 681                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 682                                 Sys_Quit(0);
 683                         break;
 684                 case MapNotify:
 685                         if (vid_isoverrideredirect)
 686                                 break;
 687                         // window restored
 688                         vid_hidden = false;
 689                         VID_RestoreSystemGamma();
 690
 691                         if(vid_isvidmodefullscreen)
 692                         {
 693                                 // set our video mode
 694                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 695
 696                                 // Move the viewport to top left
 697                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 698                         }
 699
 700                         if(vid_isnetwmfullscreen)
 701                         {
 702                                 // make sure it's fullscreen
 703                                 XEvent event;
 704                                 event.type = ClientMessage;
 705                                 event.xclient.serial = 0;
 706                                 event.xclient.send_event = True;
 707                                 event.xclient.message_type = net_wm_state_atom;
 708                                 event.xclient.window = win;
 709                                 event.xclient.format = 32;
 710                                 event.xclient.data.l[0] = 1;
 711                                 event.xclient.data.l[1] = net_wm_state_fullscreen_atom;
 712                                 event.xclient.data.l[2] = 0;
 713                                 event.xclient.data.l[3] = 1;
 714                                 event.xclient.data.l[4] = 0;
 715                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 716                         }
 717
 718                         dowarp = true;
 719
 720                         break;
 721                 case UnmapNotify:
 722                         if (vid_isoverrideredirect)
 723                                 break;
 724                         // window iconified/rolledup/whatever
 725                         vid_hidden = true;
 726                         VID_RestoreSystemGamma();
 727
 728                         if(vid_isvidmodefullscreen)
 729                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 730
 731                         break;
 732                 case FocusIn:
 733                         if (vid_isoverrideredirect)
 734                                 break;
 735                         // window is now the input focus
 736                         vid_activewindow = true;
 737                         break;
 738                 case FocusOut:
 739                         if (vid_isoverrideredirect)
 740                                 break;
 741
 742                         if(vid_isnetwmfullscreen && event.xfocus.mode == NotifyNormal)
 743                         {
 744                                 // iconify netwm fullscreen window when it loses focus
 745                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 746                                 XEvent event;
 747                                 event.type = ClientMessage;
 748                                 event.xclient.serial = 0;
 749                                 event.xclient.send_event = True;
 750                                 event.xclient.message_type = net_wm_state_atom;
 751                                 event.xclient.window = win;
 752                                 event.xclient.format = 32;
 753                                 event.xclient.data.l[0] = 1;
 754                                 event.xclient.data.l[1] = net_wm_state_hidden_atom;
 755                                 event.xclient.data.l[2] = 0;
 756                                 event.xclient.data.l[3] = 1;
 757                                 event.xclient.data.l[4] = 0;
 758                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 759                         }
 760
 761                         // window is no longer the input focus
 762                         vid_activewindow = false;
 763                         VID_RestoreSystemGamma();
 764
 765                         break;
 766                 case EnterNotify:
 767                         // mouse entered window
 768                         break;
 769                 case LeaveNotify:
 770                         // mouse left window
 771                         break;
 772                 default:
 773                         if(vidx11_shmevent >= 0 && event.type == vidx11_shmevent)
 774                                 --vidx11_shmwait;
 775                         break;
 776                 }
 777         }
 778
 779         if (dowarp)
 780         {
 781                 /* move the mouse to the window center again */
 782                 // we'll catch the warp motion by its send_event flag, updating the
 783                 // stored mouse position without adding any delta motion
 784                 XEvent event;
 785                 event.type = MotionNotify;
 786                 event.xmotion.display = vidx11_display;
 787                 event.xmotion.window = win;
 788                 event.xmotion.x = vid.width / 2;
 789                 event.xmotion.y = vid.height / 2;
 790                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 791                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 792         }
 793 }
 794
 795 static void *prjobj = NULL;
 796
 797 static void GL_CloseLibrary(void)
 798 {
 799         if (prjobj)
 800                 dlclose(prjobj);
 801         prjobj = NULL;
 802         gl_driver[0] = 0;
 803         qglXGetProcAddressARB = NULL;
 804         gl_extensions = "";
 805         gl_platform = "";
 806         gl_platformextensions = "";
 807 }
 808
 809 static int GL_OpenLibrary(const char *name)
 810 {
 811         Con_Printf("Loading OpenGL driver %s\n", name);
 812         GL_CloseLibrary();
 813         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 814         {
 815                 Con_Printf("Unable to open symbol list for %s\n", name);
 816                 return false;
 817         }
 818         strlcpy(gl_driver, name, sizeof(gl_driver));
 819         return true;
 820 }
 821
 822 void *GL_GetProcAddress(const char *name)
 823 {
 824         void *p = NULL;
 825         if (qglXGetProcAddressARB != NULL)
 826                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 827         if (p == NULL)
 828                 p = (void *) dlsym(prjobj, name);
 829         return p;
 830 }
 831
 832 void VID_Shutdown(void)
 833 {
 834         if (!vidx11_display)
 835                 return;
 836
 837         VID_EnableJoystick(false);
 838         VID_SetMouse(false, false, false);
 839         VID_RestoreSystemGamma();
 840
 841         // FIXME: glXDestroyContext here?
 842         if (vid_isvidmodefullscreen)
 843                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 844
 845         if(vidx11_gc)
 846                 XFreeGC(vidx11_display, vidx11_gc);
 847         vidx11_gc = NULL;
 848
 849         DestroyXImages();
 850         vidx11_shmevent = -1;
 851         vid.softpixels = NULL;
 852
 853         if (vid.softdepthpixels)
 854                 free(vid.softdepthpixels);
 855         vid.softdepthpixels = NULL;
 856
 857         if (win)
 858                 XDestroyWindow(vidx11_display, win);
 859         XCloseDisplay(vidx11_display);
 860
 861         vid_hidden = true;
 862         vid_isfullscreen = false;
 863         vid_isnetwmfullscreen = false;
 864         vid_isvidmodefullscreen = false;
 865         vid_isoverrideredirect = false;
 866         vidx11_display = NULL;
 867         win = 0;
 868         ctx = NULL;
 869
 870         GL_CloseLibrary();
 871         Key_ClearStates ();
 872 }
 873
 874 void signal_handler(int sig)
 875 {
 876         Con_Printf("Received signal %d, exiting...\n", sig);
 877         VID_RestoreSystemGamma();
 878         Sys_Quit(1);
 879 }
 880
 881 void InitSig(void)
 882 {
 883         signal(SIGHUP, signal_handler);
 884         signal(SIGINT, signal_handler);
 885         signal(SIGQUIT, signal_handler);
 886         signal(SIGILL, signal_handler);
 887         signal(SIGTRAP, signal_handler);
 888         signal(SIGIOT, signal_handler);
 889         signal(SIGBUS, signal_handler);
 890         signal(SIGFPE, signal_handler);
 891         signal(SIGSEGV, signal_handler);
 892         signal(SIGTERM, signal_handler);
 893 }
 894
 895 void VID_Finish (void)
 896 {
 897         vid_usevsync = vid_vsync.integer && !cls.timedemo && qglXSwapIntervalSGI;
 898         switch(vid.renderpath)
 899         {
 900                 case RENDERPATH_SOFT:
 901                         if(vidx11_shmevent >= 0) {
 902                                 vidx11_ximage_pos = !vidx11_ximage_pos;
 903                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 904                                 DPSOFTRAST_SetRenderTargets(vid.width, vid.height, vid.softdepthpixels, vid.softpixels, NULL, NULL, NULL);
 905
 906                                 // save mouse motion so we can deal with it later
 907                                 in_mouse_x = 0;
 908                                 in_mouse_y = 0;
 909                                 while(vidx11_shmwait)
 910                                         HandleEvents();
 911                                 in_mouse_x_save += in_mouse_x;
 912                                 in_mouse_y_save += in_mouse_y;
 913                                 in_mouse_x = 0;
 914                                 in_mouse_y = 0;
 915
 916                                 ++vidx11_shmwait;
 917                                 XShmPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height, True);
 918                         } else {
 919                                 // no buffer switching here, we just flush the renderer
 920                                 DPSOFTRAST_Finish();
 921                                 XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height);
 922                         }
 923                         break;
 924
 925                 case RENDERPATH_GL11:
 926                 case RENDERPATH_GL13:
 927                 case RENDERPATH_GL20:
 928                 case RENDERPATH_GLES1:
 929                 case RENDERPATH_GLES2:
 930                         if (vid_usingvsync != vid_usevsync)
 931                         {
 932                                 vid_usingvsync = vid_usevsync;
 933                                 if (qglXSwapIntervalSGI (vid_usevsync))
 934                                         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");
 935                         }
 936
 937                         if (!vid_hidden)
 938                         {
 939                                 CHECKGLERROR
 940                                 if (r_speeds.integer == 2 || gl_finish.integer)
 941                                         GL_Finish();
 942                                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 943                         }
 944                         break;
 945
 946                 case RENDERPATH_D3D9:
 947                 case RENDERPATH_D3D10:
 948                 case RENDERPATH_D3D11:
 949                         break;
 950         }
 951
 952         if (vid_x11_hardwaregammasupported)
 953                 VID_UpdateGamma(false, vid_x11_gammarampsize);
 954 }
 955
 956 int VID_SetGamma(unsigned short *ramps, int rampsize)
 957 {
 958         return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 959 }
 960
 961 int VID_GetGamma(unsigned short *ramps, int rampsize)
 962 {
 963         return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 964 }
 965
 966 void VID_Init(void)
 967 {
 968 #if !defined(__APPLE__) && !defined(SUNOS)
 969         Cvar_RegisterVariable (&vid_dgamouse);
 970 #endif
 971         Cvar_RegisterVariable (&vid_netwmfullscreen);
 972         InitSig(); // trap evil signals
 973 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 974         if (COM_CheckParm ("-nomouse"))
 975                 mouse_avail = false;
 976         vidx11_shminfo[0].shmid = -1;
 977         vidx11_shminfo[1].shmid = -1;
 978 }
 979
 980 void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 981 {
 982         *attrib++ = GLX_RGBA;
 983         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
 984         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
 985         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
 986         *attrib++ = GLX_DOUBLEBUFFER;
 987         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
 988         // if stencil is enabled, ask for alpha too
 989         if (stencil)
 990         {
 991                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
 992                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
 993         }
 994         if (stereobuffer)
 995                 *attrib++ = GLX_STEREO;
 996         if (samples > 1)
 997         {
 998                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
 999                 *attrib++ = 1;
1000                 *attrib++ = GLX_SAMPLES_ARB;
1001                 *attrib++ = samples;
1002         }
1003         *attrib++ = None;
1004 }
1005
1006 qboolean VID_InitModeSoft(viddef_mode_t *mode)
1007 {
1008         int i, j;
1009         XSetWindowAttributes attr;
1010         XClassHint *clshints;
1011         XWMHints *wmhints;
1012         XSizeHints *szhints;
1013         unsigned long mask;
1014         int MajorVersion, MinorVersion;
1015         char *xpm;
1016         char **idata;
1017         unsigned char *data;
1018         XGCValues gcval;
1019         const char *dpyname;
1020
1021         vid_isfullscreen = false;
1022         vid_isnetwmfullscreen = false;
1023         vid_isvidmodefullscreen = false;
1024         vid_isoverrideredirect = false;
1025
1026         if (!(vidx11_display = XOpenDisplay(NULL)))
1027         {
1028                 Con_Print("Couldn't open the X display\n");
1029                 return false;
1030         }
1031         dpyname = XDisplayName(NULL);
1032
1033         // LordHavoc: making the close button on a window do the right thing
1034         // seems to involve this mess, sigh...
1035         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1036         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1037         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1038         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1039         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1040         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1041
1042         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1043         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1044
1045         vidx11_screen = DefaultScreen(vidx11_display);
1046         root = RootWindow(vidx11_display, vidx11_screen);
1047
1048         // Get video mode list
1049         MajorVersion = MinorVersion = 0;
1050         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1051                 vidmode_ext = false;
1052         else
1053         {
1054                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1055                 vidmode_ext = true;
1056         }
1057
1058         if (mode->fullscreen)
1059         {
1060                 if(vid_netwmfullscreen.integer)
1061                 {
1062                         // TODO detect WM support
1063                         vid_isnetwmfullscreen = true;
1064                         vid_isfullscreen = true;
1065                         // width and height will be filled in later
1066                         Con_DPrintf("Using NetWM fullscreen mode\n");
1067                 }
1068
1069                 if(!vid_isfullscreen && vidmode_ext)
1070                 {
1071                         int best_fit, best_dist, dist, x, y;
1072
1073                         // Are we going fullscreen?  If so, let's change video mode
1074                         XF86VidModeModeLine *current_vidmode;
1075                         XF86VidModeModeInfo **vidmodes;
1076                         int num_vidmodes;
1077
1078                         // This nice hack comes from the SDL source code
1079                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1080                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1081
1082                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1083                         best_dist = 0;
1084                         best_fit = -1;
1085
1086                         for (i = 0; i < num_vidmodes; i++)
1087                         {
1088                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1089                                         continue;
1090
1091                                 x = mode->width - vidmodes[i]->hdisplay;
1092                                 y = mode->height - vidmodes[i]->vdisplay;
1093                                 dist = (x * x) + (y * y);
1094                                 if (best_fit == -1 || dist < best_dist)
1095                                 {
1096                                         best_dist = dist;
1097                                         best_fit = i;
1098                                 }
1099                         }
1100
1101                         if (best_fit != -1)
1102                         {
1103                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1104                                 // to width/height =, so the window will take the full area of
1105                                 // the mode chosen
1106                                 mode->width = vidmodes[best_fit]->hdisplay;
1107                                 mode->height = vidmodes[best_fit]->vdisplay;
1108
1109                                 // change to the mode
1110                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1111                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1112                                 vid_isvidmodefullscreen = true;
1113                                 vid_isfullscreen = true;
1114
1115                                 // Move the viewport to top left
1116                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1117                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1118                         }
1119
1120                         free(vidmodes);
1121                 }
1122
1123                 if(!vid_isfullscreen)
1124                 {
1125                         // sorry, no FS available
1126                         // use the full desktop resolution
1127                         vid_isfullscreen = true;
1128                         // width and height will be filled in later
1129                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1130                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1131                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1132                 }
1133         }
1134
1135         // LordHavoc: save the visual for use in gamma ramp settings later
1136         vidx11_visual = DefaultVisual(vidx11_display, vidx11_screen);
1137
1138         /* window attributes */
1139         attr.background_pixel = 0;
1140         attr.border_pixel = 0;
1141         // LordHavoc: save the colormap for later, too
1142         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, vidx11_visual, AllocNone);
1143         attr.event_mask = X_MASK;
1144
1145         if (mode->fullscreen)
1146         {
1147                 if(vid_isnetwmfullscreen)
1148                 {
1149                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1150                         attr.backing_store = NotUseful;
1151                         attr.save_under = False;
1152                 }
1153                 else
1154                 {
1155                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1156                         attr.override_redirect = True;
1157                         attr.backing_store = NotUseful;
1158                         attr.save_under = False;
1159                         vid_isoverrideredirect = true; // so it knows to grab
1160                 }
1161         }
1162         else
1163         {
1164                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1165         }
1166
1167         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, CopyFromParent, InputOutput, vidx11_visual, mask, &attr);
1168
1169         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1170         if(data)
1171         {
1172                 // use _NET_WM_ICON too
1173                 static long netwm_icon[MAX_NETWM_ICON];
1174                 int pos = 0;
1175                 int i = 1;
1176
1177                 while(data)
1178                 {
1179                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1180                         {
1181                                 netwm_icon[pos++] = image_width;
1182                                 netwm_icon[pos++] = image_height;
1183                                 for(i = 0; i < image_height; ++i)
1184                                         for(j = 0; j < image_width; ++j)
1185                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1186                         }
1187                         else
1188                         {
1189                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1190                         }
1191                         ++i;
1192                         Mem_Free(data);
1193                         data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
1194                 }
1195                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1196         }
1197
1198         // fallthrough for old window managers
1199         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1200         idata = NULL;
1201         if(xpm)
1202                 idata = XPM_DecodeString(xpm);
1203         if(!idata)
1204                 idata = ENGINE_ICON;
1205
1206         wmhints = XAllocWMHints();
1207         if(XpmCreatePixmapFromData(vidx11_display, win,
1208                 idata,
1209                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1210                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1211
1212         if(xpm)
1213                 Mem_Free(xpm);
1214
1215         clshints = XAllocClassHint();
1216         clshints->res_name = strdup(gamename);
1217         clshints->res_class = strdup("DarkPlaces");
1218
1219         szhints = XAllocSizeHints();
1220         if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
1221         {
1222                 szhints->min_width = szhints->max_width = mode->width;
1223                 szhints->min_height = szhints->max_height = mode->height;
1224                 szhints->flags |= PMinSize | PMaxSize;
1225         }
1226
1227         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1228         // strdup() allocates using malloc(), should be freed with free()
1229         free(clshints->res_name);
1230         free(clshints->res_class);
1231         XFree(clshints);
1232         XFree(wmhints);
1233         XFree(szhints);
1234
1235         //XStoreName(vidx11_display, win, gamename);
1236         XMapWindow(vidx11_display, win);
1237
1238         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1239
1240         if (vid_isoverrideredirect)
1241         {
1242                 XMoveWindow(vidx11_display, win, 0, 0);
1243                 XRaiseWindow(vidx11_display, win);
1244                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1245                 XFlush(vidx11_display);
1246         }
1247
1248         if(vid_isvidmodefullscreen)
1249         {
1250                 // Move the viewport to top left
1251                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1252         }
1253
1254         //XSync(vidx11_display, False);
1255
1256         // COMMANDLINEOPTION: Unix GLX: -noshm disables XShm extensioon
1257         if(dpyname && dpyname[0] == ':' && dpyname[1] && (dpyname[2] < '0' || dpyname[2] > '9') && !COM_CheckParm("-noshm") && XShmQueryExtension(vidx11_display))
1258         {
1259                 Con_Printf("Using XShm\n");
1260                 vidx11_shmevent = XShmGetEventBase(vidx11_display) + ShmCompletion;
1261         }
1262         else
1263         {
1264                 Con_Printf("Not using XShm\n");
1265                 vidx11_shmevent = -1;
1266         }
1267         BuildXImages(mode->width, mode->height);
1268
1269         vidx11_ximage_pos = 0;
1270         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
1271         vidx11_shmwait = 0;
1272         vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
1273
1274         memset(&gcval, 0, sizeof(gcval));
1275         vidx11_gc = XCreateGC(vidx11_display, win, 0, &gcval);
1276
1277         if (DPSOFTRAST_Init(mode->width, mode->height, vid_soft_threads.integer, vid_soft_interlace.integer, (unsigned int *)vid.softpixels, (unsigned int *)vid.softdepthpixels) < 0)
1278         {
1279                 Con_Printf("Failed to initialize software rasterizer\n");
1280                 VID_Shutdown();
1281                 return false;
1282         }
1283
1284         XSync(vidx11_display, False);
1285
1286         vid_usingmousegrab = false;
1287         vid_usingmouse = false;
1288         vid_usinghidecursor = false;
1289         vid_usingvsync = false;
1290         vid_hidden = false;
1291         vid_activewindow = true;
1292         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1293 #if !defined(__APPLE__) && !defined(SUNOS)
1294         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1295         if (!vid_x11_dgasupported)
1296                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1297 #endif
1298
1299         VID_Soft_SharedSetup();
1300
1301         return true;
1302 }
1303 qboolean VID_InitModeGL(viddef_mode_t *mode)
1304 {
1305         int i, j;
1306         int attrib[32];
1307         XSetWindowAttributes attr;
1308         XClassHint *clshints;
1309         XWMHints *wmhints;
1310         XSizeHints *szhints;
1311         unsigned long mask;
1312         XVisualInfo *visinfo;
1313         int MajorVersion, MinorVersion;
1314         const char *drivername;
1315         char *xpm;
1316         char **idata;
1317         unsigned char *data;
1318
1319         vid_isfullscreen = false;
1320         vid_isnetwmfullscreen = false;
1321         vid_isvidmodefullscreen = false;
1322         vid_isoverrideredirect = false;
1323
1324 #if defined(__APPLE__) && defined(__MACH__)
1325         drivername = "/usr/X11R6/lib/libGL.1.dylib";
1326 #else
1327         drivername = "libGL.so.1";
1328 #endif
1329 // 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
1330 // 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
1331 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
1332         i = COM_CheckParm("-gl_driver");
1333         if (i && i < com_argc - 1)
1334                 drivername = com_argv[i + 1];
1335         if (!GL_OpenLibrary(drivername))
1336         {
1337                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
1338                 return false;
1339         }
1340
1341         if (!(vidx11_display = XOpenDisplay(NULL)))
1342         {
1343                 Con_Print("Couldn't open the X display\n");
1344                 return false;
1345         }
1346
1347         // LordHavoc: making the close button on a window do the right thing
1348         // seems to involve this mess, sigh...
1349         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1350         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1351         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1352         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1353         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1354         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1355
1356         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1357         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1358
1359         vidx11_screen = DefaultScreen(vidx11_display);
1360         root = RootWindow(vidx11_display, vidx11_screen);
1361
1362         // Get video mode list
1363         MajorVersion = MinorVersion = 0;
1364         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1365                 vidmode_ext = false;
1366         else
1367         {
1368                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1369                 vidmode_ext = true;
1370         }
1371
1372         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
1373          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
1374          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
1375          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
1376          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
1377          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
1378         {
1379                 Con_Printf("glX functions not found in %s\n", gl_driver);
1380                 return false;
1381         }
1382
1383         VID_BuildGLXAttrib(attrib, mode->bitsperpixel == 32, mode->stereobuffer, mode->samples);
1384         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
1385         if (!visinfo)
1386         {
1387                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
1388                 return false;
1389         }
1390
1391         if (mode->fullscreen)
1392         {
1393                 if(vid_netwmfullscreen.integer)
1394                 {
1395                         // TODO detect WM support
1396                         vid_isnetwmfullscreen = true;
1397                         vid_isfullscreen = true;
1398                         // width and height will be filled in later
1399                         Con_DPrintf("Using NetWM fullscreen mode\n");
1400                 }
1401
1402                 if(!vid_isfullscreen && vidmode_ext)
1403                 {
1404                         int best_fit, best_dist, dist, x, y;
1405
1406                         // Are we going fullscreen?  If so, let's change video mode
1407                         XF86VidModeModeLine *current_vidmode;
1408                         XF86VidModeModeInfo **vidmodes;
1409                         int num_vidmodes;
1410
1411                         // This nice hack comes from the SDL source code
1412                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1413                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1414
1415                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1416                         best_dist = 0;
1417                         best_fit = -1;
1418
1419                         for (i = 0; i < num_vidmodes; i++)
1420                         {
1421                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1422                                         continue;
1423
1424                                 x = mode->width - vidmodes[i]->hdisplay;
1425                                 y = mode->height - vidmodes[i]->vdisplay;
1426                                 dist = (x * x) + (y * y);
1427                                 if (best_fit == -1 || dist < best_dist)
1428                                 {
1429                                         best_dist = dist;
1430                                         best_fit = i;
1431                                 }
1432                         }
1433
1434                         if (best_fit != -1)
1435                         {
1436                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1437                                 // to width/height =, so the window will take the full area of
1438                                 // the mode chosen
1439                                 mode->width = vidmodes[best_fit]->hdisplay;
1440                                 mode->height = vidmodes[best_fit]->vdisplay;
1441
1442                                 // change to the mode
1443                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1444                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1445                                 vid_isvidmodefullscreen = true;
1446                                 vid_isfullscreen = true;
1447
1448                                 // Move the viewport to top left
1449                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1450                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1451                         }
1452
1453                         free(vidmodes);
1454                 }
1455
1456                 if(!vid_isfullscreen)
1457                 {
1458                         // sorry, no FS available
1459                         // use the full desktop resolution
1460                         vid_isfullscreen = true;
1461                         // width and height will be filled in later
1462                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1463                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1464                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1465                 }
1466         }
1467
1468         // LordHavoc: save the visual for use in gamma ramp settings later
1469         vidx11_visual = visinfo->visual;
1470
1471         /* window attributes */
1472         attr.background_pixel = 0;
1473         attr.border_pixel = 0;
1474         // LordHavoc: save the colormap for later, too
1475         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
1476         attr.event_mask = X_MASK;
1477
1478         if (mode->fullscreen)
1479         {
1480                 if(vid_isnetwmfullscreen)
1481                 {
1482                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1483                         attr.backing_store = NotUseful;
1484                         attr.save_under = False;
1485                 }
1486                 else
1487                 {
1488                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1489                         attr.override_redirect = True;
1490                         attr.backing_store = NotUseful;
1491                         attr.save_under = False;
1492                         vid_isoverrideredirect = true; // so it knows to grab
1493                 }
1494         }
1495         else
1496         {
1497                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1498         }
1499
1500         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
1501
1502         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1503         if(data)
1504         {
1505                 // use _NET_WM_ICON too
1506                 static long netwm_icon[MAX_NETWM_ICON];
1507                 int pos = 0;
1508                 int i = 1;
1509
1510                 while(data)
1511                 {
1512                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1513                         {
1514                                 netwm_icon[pos++] = image_width;
1515                                 netwm_icon[pos++] = image_height;
1516                                 for(i = 0; i < image_height; ++i)
1517                                         for(j = 0; j < image_width; ++j)
1518                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1519                         }
1520                         else
1521                         {
1522                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1523                         }
1524                         ++i;
1525                         Mem_Free(data);
1526                         data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
1527                 }
1528                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1529         }
1530
1531         // fallthrough for old window managers
1532         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1533         idata = NULL;
1534         if(xpm)
1535                 idata = XPM_DecodeString(xpm);
1536         if(!idata)
1537                 idata = ENGINE_ICON;
1538
1539         wmhints = XAllocWMHints();
1540         if(XpmCreatePixmapFromData(vidx11_display, win,
1541                 idata,
1542                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1543                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1544
1545         if(xpm)
1546                 Mem_Free(xpm);
1547
1548         clshints = XAllocClassHint();
1549         clshints->res_name = strdup(gamename);
1550         clshints->res_class = strdup("DarkPlaces");
1551
1552         szhints = XAllocSizeHints();
1553         if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
1554         {
1555                 szhints->min_width = szhints->max_width = mode->width;
1556                 szhints->min_height = szhints->max_height = mode->height;
1557                 szhints->flags |= PMinSize | PMaxSize;
1558         }
1559
1560         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1561         // strdup() allocates using malloc(), should be freed with free()
1562         free(clshints->res_name);
1563         free(clshints->res_class);
1564         XFree(clshints);
1565         XFree(wmhints);
1566         XFree(szhints);
1567
1568         //XStoreName(vidx11_display, win, gamename);
1569         XMapWindow(vidx11_display, win);
1570
1571         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1572
1573         if (vid_isoverrideredirect)
1574         {
1575                 XMoveWindow(vidx11_display, win, 0, 0);
1576                 XRaiseWindow(vidx11_display, win);
1577                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1578                 XFlush(vidx11_display);
1579         }
1580
1581         if(vid_isvidmodefullscreen)
1582         {
1583                 // Move the viewport to top left
1584                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1585         }
1586
1587         //XSync(vidx11_display, False);
1588
1589         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
1590         XFree(visinfo); // glXChooseVisual man page says to use XFree to free visinfo
1591         if (!ctx)
1592         {
1593                 Con_Printf ("glXCreateContext failed\n");
1594                 return false;
1595         }
1596
1597         if (!qglXMakeCurrent(vidx11_display, win, ctx))
1598         {
1599                 Con_Printf ("glXMakeCurrent failed\n");
1600                 return false;
1601         }
1602
1603         XSync(vidx11_display, False);
1604
1605         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1606         {
1607                 Con_Printf ("glGetString not found in %s\n", gl_driver);
1608                 return false;
1609         }
1610
1611         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
1612         gl_platform = "GLX";
1613         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
1614
1615 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1616 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1617 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1618         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
1619 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
1620 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
1621 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
1622         GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
1623
1624         vid_usingmousegrab = false;
1625         vid_usingmouse = false;
1626         vid_usinghidecursor = false;
1627         vid_usingvsync = false;
1628         vid_hidden = false;
1629         vid_activewindow = true;
1630         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1631 #if !defined(__APPLE__) && !defined(SUNOS)
1632         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1633         if (!vid_x11_dgasupported)
1634                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1635 #endif
1636
1637         GL_Init();
1638         return true;
1639 }
1640
1641 qboolean VID_InitMode(viddef_mode_t *mode)
1642 {
1643 #ifdef SSE_POSSIBLE
1644         if (vid_soft.integer)
1645                 return VID_InitModeSoft(mode);
1646         else
1647 #endif
1648                 return VID_InitModeGL(mode);
1649 }
1650
1651 void Sys_SendKeyEvents(void)
1652 {
1653         static qboolean sound_active = true;
1654
1655         // enable/disable sound on focus gain/loss
1656         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
1657         {
1658                 if (!sound_active)
1659                 {
1660                         S_UnblockSound ();
1661                         sound_active = true;
1662                 }
1663         }
1664         else
1665         {
1666                 if (sound_active)
1667                 {
1668                         S_BlockSound ();
1669                         sound_active = false;
1670                 }
1671         }
1672
1673         HandleEvents();
1674 }
1675
1676 void VID_BuildJoyState(vid_joystate_t *joystate)
1677 {
1678         VID_Shared_BuildJoyState_Begin(joystate);
1679         VID_Shared_BuildJoyState_Finish(joystate);
1680 }
1681
1682 void VID_EnableJoystick(qboolean enable)
1683 {
1684         int index = joy_enable.integer > 0 ? joy_index.integer : -1;
1685         qboolean success = false;
1686         int sharedcount = 0;
1687         sharedcount = VID_Shared_SetJoystick(index);
1688         if (index >= 0 && index < sharedcount)
1689                 success = true;
1690
1691         // update cvar containing count of XInput joysticks
1692         if (joy_detected.integer != sharedcount)
1693                 Cvar_SetValueQuick(&joy_detected, sharedcount);
1694
1695         Cvar_SetValueQuick(&joy_active, success ? 1 : 0);
1696 }
1697
1698 void IN_Move (void)
1699 {
1700         vid_joystate_t joystate;
1701         VID_EnableJoystick(true);
1702         VID_BuildJoyState(&joystate);
1703         VID_ApplyJoyState(&joystate);
1704 }
1705
1706 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1707 {
1708         if(vidmode_ext)
1709         {
1710                 int i, bpp;
1711                 size_t k;
1712                 XF86VidModeModeInfo **vidmodes;
1713                 int num_vidmodes;
1714
1715                 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1716                 k = 0;
1717                 for (i = 0; i < num_vidmodes; i++)
1718                 {
1719                         if(k >= maxcount)
1720                                 break;
1721                         // we don't get bpp info, so let's just assume all of 8, 15, 16, 24, 32 work
1722                         for(bpp = 8; bpp <= 32; bpp = ((bpp == 8) ? 15 : (bpp & 0xF8) + 8))
1723                         {
1724                                 if(k >= maxcount)
1725                                         break;
1726                                 modes[k].width = vidmodes[i]->hdisplay;
1727                                 modes[k].height = vidmodes[i]->vdisplay;
1728                                 modes[k].bpp = 8;
1729                                 if(vidmodes[i]->dotclock && vidmodes[i]->htotal && vidmodes[i]->vtotal)
1730                                         modes[k].refreshrate = vidmodes[i]->dotclock / vidmodes[i]->htotal / vidmodes[i]->vtotal;
1731                                 else
1732                                         modes[k].refreshrate = 60;
1733                                 modes[k].pixelheight_num = 1;
1734                                 modes[k].pixelheight_denom = 1; // xvidmode does not provide this
1735                                 ++k;
1736                         }
1737                 }
1738                 // manpage of XF86VidModeGetAllModeLines says it should be freed by the caller
1739                 XFree(vidmodes);
1740                 return k;
1741         }
1742         return 0; // FIXME implement this
1743 }