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 <termios.h>
  21 #include <sys/ioctl.h>
  22 #include <sys/stat.h>
  23 #include <sys/vt.h>
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <signal.h>
  27
  28 #include <dlfcn.h>
  29
  30 #include "quakedef.h"
  31
  32 #include <GL/glx.h>
  33
  34 #include <X11/keysym.h>
  35 #include <X11/cursorfont.h>
  36
  37 #include <X11/extensions/XShm.h>
  38 #include <X11/extensions/xf86dga.h>
  39 #include <X11/extensions/xf86vmode.h>
  40
  41 static Display *vidx11_display = NULL;
  42 static int scrnum;
  43 static Window win;
  44 static GLXContext ctx = NULL;
  45
  46 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  47 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  48                     PointerMotionMask | ButtonMotionMask )
  49 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
  50
  51
  52 viddef_t        vid;                            // global video state
  53
  54 static qboolean         mouse_avail = true;
  55 static qboolean         mouse_active = false, usingmouse = false;
  56 // static qboolean              dga_active;
  57 static float    mouse_x, mouse_y;
  58 static int p_mouse_x, p_mouse_y;
  59
  60 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
  61 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
  62
  63 qboolean vidmode_ext = false;
  64
  65 static int win_x, win_y;
  66
  67 static int scr_width, scr_height;
  68
  69 static XF86VidModeModeInfo **vidmodes;
  70 //static int default_dotclock_vidmode;
  71 static int num_vidmodes;
  72 static qboolean vidmode_active = false;
  73
  74 static Visual *vidx11_visual;
  75 static Colormap vidx11_colormap;
  76
  77 /*-----------------------------------------------------------------------*/
  78
  79 const char *gl_vendor;
  80 const char *gl_renderer;
  81 const char *gl_version;
  82 const char *gl_extensions;
  83
  84 /*-----------------------------------------------------------------------*/
  85 static int
  86 XLateKey(XKeyEvent *ev/*, qboolean modified*/)
  87 {
  88 //      char tmp[2];
  89         int key = 0;
  90         KeySym keysym;
  91
  92         keysym = XLookupKeysym(ev, 0);
  93
  94         switch(keysym)
  95         {
  96                 case XK_KP_Page_Up:     key = KP_PGUP; break;
  97                 case XK_Page_Up:        key = K_PGUP; break;
  98
  99                 case XK_KP_Page_Down:   key = KP_PGDN; break;
 100                 case XK_Page_Down:      key = K_PGDN; break;
 101
 102                 case XK_KP_Home:        key = KP_HOME; break;
 103                 case XK_Home:           key = K_HOME; break;
 104
 105                 case XK_KP_End:         key = KP_END; break;
 106                 case XK_End:            key = K_END; break;
 107
 108                 case XK_KP_Left:        key = KP_LEFTARROW; break;
 109                 case XK_Left:           key = K_LEFTARROW; break;
 110
 111                 case XK_KP_Right:       key = KP_RIGHTARROW; break;
 112                 case XK_Right:          key = K_RIGHTARROW; break;
 113
 114                 case XK_KP_Down:        key = KP_DOWNARROW; break;
 115                 case XK_Down:           key = K_DOWNARROW; break;
 116
 117                 case XK_KP_Up:          key = KP_UPARROW; break;
 118                 case XK_Up:                     key = K_UPARROW; break;
 119
 120                 case XK_Escape:         key = K_ESCAPE; break;
 121
 122                 case XK_KP_Enter:       key = KP_ENTER; break;
 123                 case XK_Return:         key = K_ENTER; break;
 124
 125                 case XK_Tab:            key = K_TAB; break;
 126
 127                 case XK_F1:                     key = K_F1; break;
 128                 case XK_F2:                     key = K_F2; break;
 129                 case XK_F3:                     key = K_F3; break;
 130                 case XK_F4:                     key = K_F4; break;
 131                 case XK_F5:                     key = K_F5; break;
 132                 case XK_F6:                     key = K_F6; break;
 133                 case XK_F7:                     key = K_F7; break;
 134                 case XK_F8:                     key = K_F8; break;
 135                 case XK_F9:                     key = K_F9; break;
 136                 case XK_F10:            key = K_F10; break;
 137                 case XK_F11:            key = K_F11; break;
 138                 case XK_F12:            key = K_F12; break;
 139
 140                 case XK_BackSpace:      key = K_BACKSPACE; break;
 141
 142                 case XK_KP_Delete:      key = KP_DEL; break;
 143                 case XK_Delete:         key = K_DEL; break;
 144
 145                 case XK_Pause:          key = K_PAUSE; break;
 146
 147                 case XK_Shift_L:
 148                 case XK_Shift_R:        key = K_SHIFT; break;
 149
 150                 case XK_Execute:
 151                 case XK_Control_L:
 152                 case XK_Control_R:      key = K_CTRL; break;
 153
 154                 case XK_Mode_switch:
 155                 case XK_Alt_L:
 156                 case XK_Meta_L:
 157                 case XK_Alt_R:
 158                 case XK_Meta_R:         key = K_ALT; break;
 159
 160                 case XK_Caps_Lock:      key = K_CAPSLOCK; break;
 161                 case XK_KP_Begin:       key = KP_5; break;
 162
 163                 case XK_Insert:         key = K_INS; break;
 164                 case XK_KP_Insert:      key = KP_INS; break;
 165
 166                 case XK_KP_Multiply:    key = KP_MULTIPLY; break;
 167                 case XK_KP_Add:         key = KP_PLUS; break;
 168                 case XK_KP_Subtract:    key = KP_MINUS; break;
 169                 case XK_KP_Divide:      key = KP_DIVIDE; break;
 170
 171                 /* For Sun keyboards */
 172                 case XK_F27:            key = K_HOME; break;
 173                 case XK_F29:            key = K_PGUP; break;
 174                 case XK_F33:            key = K_END; break;
 175                 case XK_F35:            key = K_PGDN; break;
 176
 177                 default:
 178                         if (keysym < 128)
 179                         {
 180                                 /* ASCII keys */
 181                                 key = keysym;
 182                                 if (/*!modified && */((key >= 'A') && (key <= 'Z')))
 183                                         key = key + ('a' - 'A');
 184                         }
 185                         break;
 186         }
 187
 188         return key;
 189 }
 190
 191 static Cursor CreateNullCursor(Display *display, Window root)
 192 {
 193         Pixmap cursormask;
 194         XGCValues xgc;
 195         GC gc;
 196         XColor dummycolour;
 197         Cursor cursor;
 198
 199         cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
 200         xgc.function = GXclear;
 201         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 202         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 203         dummycolour.pixel = 0;
 204         dummycolour.red = 0;
 205         dummycolour.flags = 04;
 206         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 207         XFreePixmap(display,cursormask);
 208         XFreeGC(display,gc);
 209         return cursor;
 210 }
 211
 212 static void install_grabs(void)
 213 {
 214         XWindowAttributes attribs_1;
 215         XSetWindowAttributes attribs_2;
 216
 217         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 218         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 219         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 220
 221 // inviso cursor
 222         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 223
 224         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 225
 226         if (vid_dga.integer)
 227         {
 228                 int MajorVersion, MinorVersion;
 229
 230                 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 231                 {
 232                         // unable to query, probalby not supported
 233                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 234                         vid_dga.integer = 0;
 235                 }
 236                 else
 237                 {
 238                         vid_dga.integer = 1;
 239                         XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 240                         XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 241                 }
 242         }
 243         else
 244                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
 245
 246         XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 247
 248         mouse_active = true;
 249         mouse_x = mouse_y = 0;
 250
 251 //      XSync(vidx11_display, True);
 252 }
 253
 254 static void uninstall_grabs(void)
 255 {
 256         if (!vidx11_display || !win)
 257                 return;
 258
 259         if (vid_dga.integer == 1)
 260                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 261
 262         XUngrabPointer(vidx11_display, CurrentTime);
 263         XUngrabKeyboard(vidx11_display, CurrentTime);
 264
 265 // inviso cursor
 266         XUndefineCursor(vidx11_display, win);
 267
 268         mouse_active = false;
 269 }
 270
 271 static void HandleEvents(void)
 272 {
 273         XEvent event;
 274 //      KeySym ks;
 275         qboolean dowarp = false;
 276
 277         if (!vidx11_display)
 278                 return;
 279
 280         while (XPending(vidx11_display))
 281         {
 282                 XNextEvent(vidx11_display, &event);
 283
 284                 switch (event.type)
 285                 {
 286                 case KeyPress:
 287                 case KeyRelease:
 288                         Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
 289                         break;
 290
 291                 case MotionNotify:
 292                         if (usingmouse)
 293                         {
 294                                 if (vid_dga.integer == 1)
 295                                 {
 296                                         mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
 297                                         mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
 298                                 }
 299                                 else
 300                                 {
 301                                         /*
 302                                         if (!p_mouse_x && !p_mouse_y)
 303                                         {
 304                                                 Con_Printf("event->xmotion.x: %d\n", event.xmotion.x);
 305                                                 Con_Printf("event->xmotion.y: %d\n", event.xmotion.y);
 306                                         }
 307                                         */
 308                                         //if (usingmouse)
 309                                         {
 310                                                 if (!event.xmotion.send_event)
 311                                                 {
 312                                                         mouse_x += event.xmotion.x - p_mouse_x;
 313                                                         mouse_y += event.xmotion.y - p_mouse_y;
 314                                                         if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
 315                                                                 dowarp = true;
 316                                                 }
 317                                         }
 318                                         /*
 319                                         else
 320                                         {
 321                                                 mouse_x += (event.xmotion.x - p_mouse_x);
 322                                                 mouse_y += (event.xmotion.y - p_mouse_y);
 323                                         }
 324                                         */
 325                                         p_mouse_x = event.xmotion.x;
 326                                         p_mouse_y = event.xmotion.y;
 327                                 }
 328                         }
 329                         else
 330                                 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
 331                         break;
 332
 333                 case ButtonPress:
 334                         switch(event.xbutton.button)
 335                         {
 336                         case 1:
 337                                 Key_Event(K_MOUSE1, true);
 338                                 break;
 339                         case 2:
 340                                 Key_Event(K_MOUSE3, true);
 341                                 break;
 342                         case 3:
 343                                 Key_Event(K_MOUSE2, true);
 344                                 break;
 345                         case 4:
 346                                 Key_Event(K_MWHEELUP, true);
 347                                 break;
 348                         case 5:
 349                                 Key_Event(K_MWHEELDOWN, true);
 350                                 break;
 351                 default:
 352                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
 353                                 break;
 354                         }
 355                         break;
 356
 357                 case ButtonRelease:
 358                         switch(event.xbutton.button)
 359                         {
 360                         case 1:
 361                                 Key_Event(K_MOUSE1, false);
 362                                 break;
 363                         case 2:
 364                                 Key_Event(K_MOUSE3, false);
 365                                 break;
 366                         case 3:
 367                                 Key_Event(K_MOUSE2, false);
 368                                 break;
 369                         case 4:
 370                                 Key_Event(K_MWHEELUP, false);
 371                                 break;
 372                         case 5:
 373                                 Key_Event(K_MWHEELDOWN, false);
 374                                 break;
 375                 default:
 376                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
 377                                 break;
 378                         }
 379                         break;
 380
 381                 case CreateNotify :
 382                         win_x = event.xcreatewindow.x;
 383                         win_y = event.xcreatewindow.y;
 384                         break;
 385
 386                 case ConfigureNotify :
 387                         win_x = event.xconfigure.x;
 388                         win_y = event.xconfigure.y;
 389                         break;
 390                 }
 391         }
 392
 393         if (dowarp)
 394         {
 395                 /* move the mouse to the window center again */
 396                 p_mouse_x = scr_width / 2;
 397                 p_mouse_y = scr_height / 2;
 398                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
 399         }
 400
 401 }
 402
 403 static void IN_DeactivateMouse( void )
 404 {
 405         if (!mouse_avail || !vidx11_display || !win)
 406                 return;
 407
 408         if (mouse_active)
 409         {
 410                 uninstall_grabs();
 411                 mouse_active = false;
 412         }
 413 }
 414
 415 static void IN_ActivateMouse( void )
 416 {
 417         if (!mouse_avail || !vidx11_display || !win)
 418                 return;
 419
 420         if (!mouse_active)
 421         {
 422                 mouse_x = mouse_y = 0; // don't spazz
 423                 install_grabs();
 424                 mouse_active = true;
 425         }
 426 }
 427
 428
 429 void VID_Shutdown(void)
 430 {
 431         if (!ctx || !vidx11_display)
 432                 return;
 433
 434         if (vidx11_display)
 435         {
 436                 uninstall_grabs();
 437
 438                 if (vidmode_active)
 439                         XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
 440 /* Disabled, causes a segfault during shutdown.
 441                 if (ctx)
 442                         glXDestroyContext(vidx11_display, ctx);
 443 */
 444                 if (win)
 445                         XDestroyWindow(vidx11_display, win);
 446                 XCloseDisplay(vidx11_display);
 447         }
 448         vidmode_active = false;
 449         vidx11_display = NULL;
 450         win = 0;
 451         ctx = NULL;
 452 }
 453
 454 void signal_handler(int sig)
 455 {
 456         printf("Received signal %d, exiting...\n", sig);
 457         Sys_Quit();
 458         exit(0);
 459 }
 460
 461 void InitSig(void)
 462 {
 463         signal(SIGHUP, signal_handler);
 464         signal(SIGINT, signal_handler);
 465         signal(SIGQUIT, signal_handler);
 466         signal(SIGILL, signal_handler);
 467         signal(SIGTRAP, signal_handler);
 468         signal(SIGIOT, signal_handler);
 469         signal(SIGBUS, signal_handler);
 470         signal(SIGFPE, signal_handler);
 471         signal(SIGSEGV, signal_handler);
 472         signal(SIGTERM, signal_handler);
 473 }
 474
 475 /*
 476 =================
 477 VID_GetWindowSize
 478 =================
 479 */
 480 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 481 {
 482         *x = *y = 0;
 483         *width = scr_width;
 484         *height = scr_height;
 485 }
 486
 487 void VID_Finish (void)
 488 {
 489         int usemouse;
 490         if (r_render.integer)
 491         {
 492                 qglFinish();
 493                 glXSwapBuffers(vidx11_display, win);
 494         }
 495
 496 // handle the mouse state when windowed if that's changed
 497         usemouse = false;
 498         if (vid_mouse.integer && key_dest == key_game)
 499                 usemouse = true;
 500         if (vidmode_active)
 501                 usemouse = true;
 502         if (usemouse)
 503         {
 504                 if (!usingmouse)
 505                 {
 506                         usingmouse = true;
 507                         IN_ActivateMouse ();
 508                 }
 509         }
 510         else
 511         {
 512                 if (usingmouse)
 513                 {
 514                         usingmouse = false;
 515                         IN_DeactivateMouse ();
 516                 }
 517         }
 518 }
 519
 520 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
 521 // SDL than to simply use the XFree gamma ramp extension, but that affects the
 522 // whole screen even when the game window is inactive, this only affects the
 523 // screen while the window is active, very desirable behavior :)
 524 int VID_SetGamma(float prescale, float gamma, float scale, float base)
 525 {
 526 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 527 #if 1
 528         return FALSE;
 529 #else
 530         int i, ncolors, c;
 531         unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
 532         XColor xcmap[256];
 533         unsigned short ramp[256];
 534
 535         if (COM_CheckParm("-nogamma"))
 536                 return FALSE;
 537
 538         if (vidx11_visual->class != DirectColor)
 539         {
 540                 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
 541                 return FALSE;
 542         }
 543
 544         Rmask = vidx11_visual->red_mask;
 545         Gmask = vidx11_visual->green_mask;
 546         Bmask = vidx11_visual->blue_mask;
 547
 548         Rshift = 0;
 549         Rloss = 8;
 550         if ((mask = Rmask))
 551         {
 552                 for (;!(mask & 1);mask >>= 1)
 553                         ++Rshift;
 554                 for (;(mask & 1);mask >>= 1)
 555                         --Rloss;
 556         }
 557         Gshift = 0;
 558         Gloss = 8;
 559         if ((mask = Gmask))
 560         {
 561                 for (;!(mask & 1);mask >>= 1)
 562                         ++Gshift;
 563                 for (;(mask & 1);mask >>= 1)
 564                         --Gloss;
 565         }
 566         Bshift = 0;
 567         Bloss = 8;
 568         if ((mask = Bmask))
 569         {
 570                 for (;!(mask & 1);mask >>= 1)
 571                         ++Bshift;
 572                 for (;(mask & 1);mask >>= 1)
 573                         --Bloss;
 574         }
 575
 576         BuildGammaTable16(prescale, gamma, scale, base, ramp);
 577
 578         // convert gamma ramp to palette (yes this seems odd)
 579         ncolors = vidx11_visual->map_entries;
 580         for (i = 0;i < ncolors;i++)
 581         {
 582                 c = (256 * i / ncolors);
 583                 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
 584                 xcmap[i].red   = ramp[c];
 585                 xcmap[i].green = ramp[c];
 586                 xcmap[i].blue  = ramp[c];
 587                 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
 588         }
 589         XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
 590         XSync(vidx11_display, false);
 591         // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
 592         return TRUE;
 593 #endif
 594 }
 595
 596 void VID_Init(void)
 597 {
 598         int i;
 599 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 600 #if 0
 601         int gammaattrib[] =
 602         {
 603                 GLX_RGBA,
 604                 GLX_RED_SIZE, 1,
 605                 GLX_GREEN_SIZE, 1,
 606                 GLX_BLUE_SIZE, 1,
 607                 GLX_DOUBLEBUFFER,
 608                 GLX_DEPTH_SIZE, 1,
 609                 GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
 610                 None
 611         };
 612 #endif
 613         int nogammaattrib[] =
 614         {
 615                 GLX_RGBA,
 616                 GLX_RED_SIZE, 1,
 617                 GLX_GREEN_SIZE, 1,
 618                 GLX_BLUE_SIZE, 1,
 619                 GLX_DOUBLEBUFFER,
 620                 GLX_DEPTH_SIZE, 1,
 621                 None
 622         };
 623 //      char    gldir[MAX_OSPATH];
 624         int width = 640, height = 480;
 625         XSetWindowAttributes attr;
 626         unsigned long mask;
 627         Window root;
 628         XVisualInfo *visinfo;
 629         qboolean fullscreen = true;
 630         int MajorVersion, MinorVersion;
 631
 632         Cvar_RegisterVariable (&vid_dga);
 633         Cvar_RegisterVariable (&vid_dga_mouseaccel);
 634
 635 // interpret command-line params
 636
 637 // set vid parameters
 638         if ((i = COM_CheckParm("-window")) != 0)
 639                 fullscreen = false;
 640
 641         if ((i = COM_CheckParm("-width")) != 0)
 642                 width = atoi(com_argv[i+1]);
 643
 644         if ((i = COM_CheckParm("-height")) != 0)
 645                 height = atoi(com_argv[i+1]);
 646
 647         if ((i = COM_CheckParm("-conwidth")) != 0)
 648                 vid.conwidth = atoi(com_argv[i+1]);
 649         else
 650                 vid.conwidth = 640;
 651
 652         vid.conwidth &= 0xfff8; // make it a multiple of eight
 653
 654         if (vid.conwidth < 320)
 655                 vid.conwidth = 320;
 656
 657         // pick a conheight that matches with correct aspect
 658         vid.conheight = vid.conwidth*3 / 4;
 659
 660         if ((i = COM_CheckParm("-conheight")) != 0)
 661                 vid.conheight = atoi(com_argv[i+1]);
 662         if (vid.conheight < 200)
 663                 vid.conheight = 200;
 664
 665         if (!(vidx11_display = XOpenDisplay(NULL)))
 666         {
 667                 fprintf(stderr, "Error couldn't open the X display\n");
 668                 exit(1);
 669         }
 670
 671         scrnum = DefaultScreen(vidx11_display);
 672         root = RootWindow(vidx11_display, scrnum);
 673
 674         // Get video mode list
 675         MajorVersion = MinorVersion = 0;
 676         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 677                 vidmode_ext = false;
 678         else
 679         {
 680                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 681                 vidmode_ext = true;
 682         }
 683
 684         visinfo = NULL;
 685 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 686 #if 0
 687         if (!COM_CheckParm("-nogamma"))
 688                 visinfo = glXChooseVisual(vidx11_display, scrnum, gammaattrib);
 689 #endif
 690         if (!visinfo)
 691         {
 692                 visinfo = glXChooseVisual(vidx11_display, scrnum, nogammaattrib);
 693                 if (!visinfo)
 694                 {
 695                         fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 696                         exit(1);
 697                 }
 698         }
 699
 700         if (vidmode_ext)
 701         {
 702                 int best_fit, best_dist, dist, x, y;
 703
 704                 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
 705
 706                 // Are we going fullscreen?  If so, let's change video mode
 707                 if (fullscreen)
 708                 {
 709                         best_dist = 9999999;
 710                         best_fit = -1;
 711
 712                         for (i = 0; i < num_vidmodes; i++)
 713                         {
 714                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 715                                         continue;
 716
 717                                 x = width - vidmodes[i]->hdisplay;
 718                                 y = height - vidmodes[i]->vdisplay;
 719                                 dist = (x * x) + (y * y);
 720                                 if (dist < best_dist)
 721                                 {
 722                                         best_dist = dist;
 723                                         best_fit = i;
 724                                 }
 725                         }
 726
 727                         if (best_fit != -1)
 728                         {
 729                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 730                                 // to width/height =, so the window will take the full area of
 731                                 // the mode chosen
 732                                 width = vidmodes[best_fit]->hdisplay;
 733                                 height = vidmodes[best_fit]->vdisplay;
 734
 735                                 // change to the mode
 736                                 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
 737                                 vidmode_active = true;
 738
 739                                 // Move the viewport to top left
 740                                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 741                         }
 742                         else
 743                                 fullscreen = 0;
 744                 }
 745         }
 746
 747         // LordHavoc: save the visual for use in gamma ramp settings later
 748         vidx11_visual = visinfo->visual;
 749
 750         /* window attributes */
 751         attr.background_pixel = 0;
 752         attr.border_pixel = 0;
 753         // LordHavoc: save the colormap for later, too
 754         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
 755         attr.event_mask = X_MASK;
 756         if (vidmode_active)
 757         {
 758                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 759                 attr.override_redirect = True;
 760                 attr.backing_store = NotUseful;
 761                 attr.save_under = False;
 762         }
 763         else
 764                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 765
 766         win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 767         XStoreName(vidx11_display, win, gamename);
 768         XMapWindow(vidx11_display, win);
 769
 770         if (vidmode_active)
 771         {
 772                 XMoveWindow(vidx11_display, win, 0, 0);
 773                 XRaiseWindow(vidx11_display, win);
 774                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 775                 XFlush(vidx11_display);
 776                 // Move the viewport to top left
 777                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 778         }
 779
 780         XFlush(vidx11_display);
 781
 782         ctx = glXCreateContext(vidx11_display, visinfo, NULL, True);
 783
 784         glXMakeCurrent(vidx11_display, win, ctx);
 785
 786         scr_width = width;
 787         scr_height = height;
 788
 789         if (vid.conheight > height)
 790                 vid.conheight = height;
 791         if (vid.conwidth > width)
 792                 vid.conwidth = width;
 793
 794         InitSig(); // trap evil signals
 795
 796         GL_Init();
 797
 798         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 799
 800         // force a surface cache flush
 801 //      vid.recalc_refdef = 1;
 802 }
 803
 804 void Sys_SendKeyEvents(void)
 805 {
 806         HandleEvents();
 807 }
 808
 809 void IN_Init(void)
 810 {
 811         if (COM_CheckParm ("-nomouse"))
 812                 mouse_avail = false;
 813 }
 814
 815 void IN_Shutdown(void)
 816 {
 817 }
 818
 819 /*
 820 ===========
 821 IN_Commands
 822 ===========
 823 */
 824 void IN_Commands (void)
 825 {
 826 }
 827
 828 void IN_Move (usercmd_t *cmd)
 829 {
 830         if (mouse_avail)
 831                 IN_Mouse(cmd, mouse_x, mouse_y);
 832         mouse_x = 0;
 833         mouse_y = 0;
 834 }
 835
 836