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 <X11/Xlib.h>
  31 #include <X11/Xutil.h>
  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 #include "quakedef.h"
  42
  43 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  44 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  45 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
  46 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  47 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
  48
  49
  50 static Display *vidx11_display = NULL;
  51 static int scrnum;
  52 static Window win;
  53 static GLXContext ctx = NULL;
  54
  55 Atom wm_delete_window_atom;
  56
  57 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  58 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  59                     PointerMotionMask | ButtonMotionMask )
  60 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
  61
  62
  63 viddef_t        vid;                            // global video state
  64
  65 static qboolean         mouse_avail = true;
  66 static qboolean         mouse_active = false, usingmouse = false;
  67 static float    mouse_x, mouse_y;
  68 static int p_mouse_x, p_mouse_y;
  69
  70 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
  71 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
  72
  73 qboolean vidmode_ext = false;
  74
  75 static int win_x, win_y;
  76
  77 static int scr_width, scr_height;
  78
  79 static XF86VidModeModeInfo **vidmodes;
  80 static int num_vidmodes;
  81 static qboolean vidmode_active = false;
  82
  83 static Visual *vidx11_visual;
  84 static Colormap vidx11_colormap;
  85
  86 /*-----------------------------------------------------------------------*/
  87
  88 static int
  89 XLateKey(XKeyEvent *ev)
  90 {
  91         int key = 0;
  92         KeySym keysym;
  93
  94         keysym = XLookupKeysym(ev, 0);
  95
  96         switch(keysym)
  97         {
  98                 case XK_KP_Page_Up:     key = KP_PGUP; break;
  99                 case XK_Page_Up:        key = K_PGUP; break;
 100
 101                 case XK_KP_Page_Down:   key = KP_PGDN; break;
 102                 case XK_Page_Down:      key = K_PGDN; break;
 103
 104                 case XK_KP_Home:        key = KP_HOME; break;
 105                 case XK_Home:           key = K_HOME; break;
 106
 107                 case XK_KP_End:         key = KP_END; break;
 108                 case XK_End:            key = K_END; break;
 109
 110                 case XK_KP_Left:        key = KP_LEFTARROW; break;
 111                 case XK_Left:           key = K_LEFTARROW; break;
 112
 113                 case XK_KP_Right:       key = KP_RIGHTARROW; break;
 114                 case XK_Right:          key = K_RIGHTARROW; break;
 115
 116                 case XK_KP_Down:        key = KP_DOWNARROW; break;
 117                 case XK_Down:           key = K_DOWNARROW; break;
 118
 119                 case XK_KP_Up:          key = KP_UPARROW; break;
 120                 case XK_Up:                     key = K_UPARROW; break;
 121
 122                 case XK_Escape:         key = K_ESCAPE; break;
 123
 124                 case XK_KP_Enter:       key = KP_ENTER; break;
 125                 case XK_Return:         key = K_ENTER; break;
 126
 127                 case XK_Tab:            key = K_TAB; break;
 128
 129                 case XK_F1:                     key = K_F1; break;
 130                 case XK_F2:                     key = K_F2; break;
 131                 case XK_F3:                     key = K_F3; break;
 132                 case XK_F4:                     key = K_F4; break;
 133                 case XK_F5:                     key = K_F5; break;
 134                 case XK_F6:                     key = K_F6; break;
 135                 case XK_F7:                     key = K_F7; break;
 136                 case XK_F8:                     key = K_F8; break;
 137                 case XK_F9:                     key = K_F9; break;
 138                 case XK_F10:            key = K_F10; break;
 139                 case XK_F11:            key = K_F11; break;
 140                 case XK_F12:            key = K_F12; break;
 141
 142                 case XK_BackSpace:      key = K_BACKSPACE; break;
 143
 144                 case XK_KP_Delete:      key = KP_DEL; break;
 145                 case XK_Delete:         key = K_DEL; break;
 146
 147                 case XK_Pause:          key = K_PAUSE; break;
 148
 149                 case XK_Shift_L:
 150                 case XK_Shift_R:        key = K_SHIFT; break;
 151
 152                 case XK_Execute:
 153                 case XK_Control_L:
 154                 case XK_Control_R:      key = K_CTRL; break;
 155
 156                 case XK_Mode_switch:
 157                 case XK_Alt_L:
 158                 case XK_Meta_L:
 159                 case XK_Alt_R:
 160                 case XK_Meta_R:         key = K_ALT; break;
 161
 162                 case XK_Caps_Lock:      key = K_CAPSLOCK; break;
 163                 case XK_KP_Begin:       key = KP_5; break;
 164
 165                 case XK_Insert:         key = K_INS; break;
 166                 case XK_KP_Insert:      key = KP_INS; break;
 167
 168                 case XK_KP_Multiply:    key = KP_MULTIPLY; break;
 169                 case XK_KP_Add:         key = KP_PLUS; break;
 170                 case XK_KP_Subtract:    key = KP_MINUS; break;
 171                 case XK_KP_Divide:      key = KP_DIVIDE; break;
 172
 173                 /* For Sun keyboards */
 174                 case XK_F27:            key = K_HOME; break;
 175                 case XK_F29:            key = K_PGUP; break;
 176                 case XK_F33:            key = K_END; break;
 177                 case XK_F35:            key = K_PGDN; break;
 178
 179                 default:
 180                         if (keysym < 128)
 181                         {
 182                                 /* ASCII keys */
 183                                 key = keysym;
 184                                 if ((key >= 'A') && (key <= 'Z'))
 185                                         key = key + ('a' - 'A');
 186                         }
 187                         break;
 188         }
 189
 190         return key;
 191 }
 192
 193 static Cursor CreateNullCursor(Display *display, Window root)
 194 {
 195         Pixmap cursormask;
 196         XGCValues xgc;
 197         GC gc;
 198         XColor dummycolour;
 199         Cursor cursor;
 200
 201         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 202         xgc.function = GXclear;
 203         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 204         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 205         dummycolour.pixel = 0;
 206         dummycolour.red = 0;
 207         dummycolour.flags = 04;
 208         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 209         XFreePixmap(display,cursormask);
 210         XFreeGC(display,gc);
 211         return cursor;
 212 }
 213
 214 static void install_grabs(void)
 215 {
 216         XWindowAttributes attribs_1;
 217         XSetWindowAttributes attribs_2;
 218
 219         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 220         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 221         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 222
 223 // inviso cursor
 224         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 225
 226         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 227
 228         if (vid_dga.integer)
 229         {
 230                 int MajorVersion, MinorVersion;
 231
 232                 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 233                 {
 234                         // unable to query, probalby not supported
 235                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 236                         vid_dga.integer = 0;
 237                 }
 238                 else
 239                 {
 240                         vid_dga.integer = 1;
 241                         XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 242                         XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 243                 }
 244         }
 245         else
 246                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
 247
 248         XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 249
 250         mouse_active = true;
 251         mouse_x = mouse_y = 0;
 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         qboolean dowarp = false;
 275
 276         if (!vidx11_display)
 277                 return;
 278
 279         while (XPending(vidx11_display))
 280         {
 281                 XNextEvent(vidx11_display, &event);
 282
 283                 switch (event.type)
 284                 {
 285                 case KeyPress:
 286                         // key pressed
 287                         Key_Event(XLateKey(&event.xkey), true);
 288                         break;
 289
 290                 case KeyRelease:
 291                         // key released
 292                         Key_Event(XLateKey(&event.xkey), false);
 293                         break;
 294
 295                 case MotionNotify:
 296                         // mouse moved
 297                         if (usingmouse)
 298                         {
 299                                 if (vid_dga.integer == 1)
 300                                 {
 301                                         mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
 302                                         mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
 303                                 }
 304                                 else
 305                                 {
 306
 307                                         if (!event.xmotion.send_event)
 308                                         {
 309                                                 mouse_x += event.xmotion.x - p_mouse_x;
 310                                                 mouse_y += event.xmotion.y - p_mouse_y;
 311                                                 if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
 312                                                         dowarp = true;
 313                                         }
 314                                         p_mouse_x = event.xmotion.x;
 315                                         p_mouse_y = event.xmotion.y;
 316                                 }
 317                         }
 318                         else
 319                                 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
 320                         break;
 321
 322                 case ButtonPress:
 323                         // mouse button pressed
 324                         switch(event.xbutton.button)
 325                         {
 326                         case 1:
 327                                 Key_Event(K_MOUSE1, true);
 328                                 break;
 329                         case 2:
 330                                 Key_Event(K_MOUSE3, true);
 331                                 break;
 332                         case 3:
 333                                 Key_Event(K_MOUSE2, true);
 334                                 break;
 335                         case 4:
 336                                 Key_Event(K_MWHEELUP, true);
 337                                 break;
 338                         case 5:
 339                                 Key_Event(K_MWHEELDOWN, true);
 340                                 break;
 341                 default:
 342                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
 343                                 break;
 344                         }
 345                         break;
 346
 347                 case ButtonRelease:
 348                         // mouse button released
 349                         switch(event.xbutton.button)
 350                         {
 351                         case 1:
 352                                 Key_Event(K_MOUSE1, false);
 353                                 break;
 354                         case 2:
 355                                 Key_Event(K_MOUSE3, false);
 356                                 break;
 357                         case 3:
 358                                 Key_Event(K_MOUSE2, false);
 359                                 break;
 360                         case 4:
 361                                 Key_Event(K_MWHEELUP, false);
 362                                 break;
 363                         case 5:
 364                                 Key_Event(K_MWHEELDOWN, false);
 365                                 break;
 366                 default:
 367                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
 368                                 break;
 369                         }
 370                         break;
 371
 372                 case CreateNotify:
 373                         // window created
 374                         win_x = event.xcreatewindow.x;
 375                         win_y = event.xcreatewindow.y;
 376                         break;
 377
 378                 case ConfigureNotify:
 379                         // window changed size/location
 380                         win_x = event.xconfigure.x;
 381                         win_y = event.xconfigure.y;
 382                         break;
 383                 case DestroyNotify:
 384                         // window has been destroyed
 385                         Sys_Quit();
 386                         break;
 387                 case ClientMessage:
 388                         // window manager messages
 389                         if ((event.xclient.format == 32) && (event.xclient.data.l[0] == wm_delete_window_atom))
 390                                 Sys_Quit();
 391                         break;
 392                 case MapNotify:
 393                         // window restored
 394                         vid_hidden = false;
 395                         break;
 396                 case UnmapNotify:
 397                         // window iconified/rolledup/whatever
 398                         vid_hidden = true;
 399                         break;
 400                 case FocusIn:
 401                         // window is now the input focus
 402                         break;
 403                 case FocusOut:
 404                         // window is no longer the input focus
 405                         break;
 406                 case EnterNotify:
 407                         // mouse entered window
 408                         break;
 409                 case LeaveNotify:
 410                         // mouse left window
 411                         break;
 412                 }
 413         }
 414
 415         if (dowarp)
 416         {
 417                 /* move the mouse to the window center again */
 418                 p_mouse_x = scr_width / 2;
 419                 p_mouse_y = scr_height / 2;
 420                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
 421         }
 422
 423 }
 424
 425 static void IN_DeactivateMouse( void )
 426 {
 427         if (!mouse_avail || !vidx11_display || !win)
 428                 return;
 429
 430         if (mouse_active)
 431         {
 432                 uninstall_grabs();
 433                 mouse_active = false;
 434         }
 435 }
 436
 437 static void IN_ActivateMouse( void )
 438 {
 439         if (!mouse_avail || !vidx11_display || !win)
 440                 return;
 441
 442         if (!mouse_active)
 443         {
 444                 mouse_x = mouse_y = 0; // don't spazz
 445                 install_grabs();
 446                 mouse_active = true;
 447         }
 448 }
 449
 450
 451 void VID_Shutdown(void)
 452 {
 453         if (!ctx || !vidx11_display)
 454                 return;
 455
 456         if (vidx11_display)
 457         {
 458                 uninstall_grabs();
 459
 460                 if (vidmode_active)
 461                         XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
 462                 if (win)
 463                         XDestroyWindow(vidx11_display, win);
 464                 XCloseDisplay(vidx11_display);
 465         }
 466         vidmode_active = false;
 467         vidx11_display = NULL;
 468         win = 0;
 469         ctx = NULL;
 470
 471         GL_CloseLibrary();
 472 }
 473
 474 void signal_handler(int sig)
 475 {
 476         printf("Received signal %d, exiting...\n", sig);
 477         Sys_Quit();
 478         exit(0);
 479 }
 480
 481 void InitSig(void)
 482 {
 483         signal(SIGHUP, signal_handler);
 484         signal(SIGINT, signal_handler);
 485         signal(SIGQUIT, signal_handler);
 486         signal(SIGILL, signal_handler);
 487         signal(SIGTRAP, signal_handler);
 488         signal(SIGIOT, signal_handler);
 489         signal(SIGBUS, signal_handler);
 490         signal(SIGFPE, signal_handler);
 491         signal(SIGSEGV, signal_handler);
 492         signal(SIGTERM, signal_handler);
 493 }
 494
 495 /*
 496 =================
 497 VID_GetWindowSize
 498 =================
 499 */
 500 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 501 {
 502         *x = *y = 0;
 503         *width = scr_width;
 504         *height = scr_height;
 505 }
 506
 507 void VID_Finish (void)
 508 {
 509         int usemouse;
 510         if (r_render.integer)
 511         {
 512                 qglFinish();
 513                 qglXSwapBuffers(vidx11_display, win);
 514         }
 515
 516 // handle the mouse state when windowed if that's changed
 517         usemouse = false;
 518         if (vid_mouse.integer && !key_consoleactive)
 519                 usemouse = true;
 520         if (vidmode_active)
 521                 usemouse = true;
 522         if (usemouse)
 523         {
 524                 if (!usingmouse)
 525                 {
 526                         usingmouse = true;
 527                         IN_ActivateMouse ();
 528                 }
 529         }
 530         else
 531         {
 532                 if (usingmouse)
 533                 {
 534                         usingmouse = false;
 535                         IN_DeactivateMouse ();
 536                 }
 537         }
 538 }
 539
 540 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
 541 // SDL than to simply use the XFree gamma ramp extension, but that affects the
 542 // whole screen even when the game window is inactive, this only affects the
 543 // screen while the window is active, very desirable behavior :)
 544 int VID_SetGamma(float prescale, float gamma, float scale, float base)
 545 {
 546 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 547 #if 1
 548         return FALSE;
 549 #else
 550         int i, ncolors, c;
 551         unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
 552         XColor xcmap[256];
 553         unsigned short ramp[256];
 554
 555         if (COM_CheckParm("-nogamma"))
 556                 return FALSE;
 557
 558         if (vidx11_visual->class != DirectColor)
 559         {
 560                 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
 561                 return FALSE;
 562         }
 563
 564         Rmask = vidx11_visual->red_mask;
 565         Gmask = vidx11_visual->green_mask;
 566         Bmask = vidx11_visual->blue_mask;
 567
 568         Rshift = 0;
 569         Rloss = 8;
 570         if ((mask = Rmask))
 571         {
 572                 for (;!(mask & 1);mask >>= 1)
 573                         ++Rshift;
 574                 for (;(mask & 1);mask >>= 1)
 575                         --Rloss;
 576         }
 577         Gshift = 0;
 578         Gloss = 8;
 579         if ((mask = Gmask))
 580         {
 581                 for (;!(mask & 1);mask >>= 1)
 582                         ++Gshift;
 583                 for (;(mask & 1);mask >>= 1)
 584                         --Gloss;
 585         }
 586         Bshift = 0;
 587         Bloss = 8;
 588         if ((mask = Bmask))
 589         {
 590                 for (;!(mask & 1);mask >>= 1)
 591                         ++Bshift;
 592                 for (;(mask & 1);mask >>= 1)
 593                         --Bloss;
 594         }
 595
 596         BuildGammaTable16(prescale, gamma, scale, base, ramp);
 597
 598         // convert gamma ramp to palette (yes this seems odd)
 599         ncolors = vidx11_visual->map_entries;
 600         for (i = 0;i < ncolors;i++)
 601         {
 602                 c = (256 * i / ncolors);
 603                 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
 604                 xcmap[i].red   = ramp[c];
 605                 xcmap[i].green = ramp[c];
 606                 xcmap[i].blue  = ramp[c];
 607                 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
 608         }
 609         XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
 610         XSync(vidx11_display, false);
 611         // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
 612         return TRUE;
 613 #endif
 614 }
 615
 616 void VID_Init(void)
 617 {
 618         int i;
 619 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 620 #if 0
 621         int gammaattrib[] =
 622         {
 623                 GLX_RGBA,
 624                 GLX_RED_SIZE, 1,
 625                 GLX_GREEN_SIZE, 1,
 626                 GLX_BLUE_SIZE, 1,
 627                 GLX_DOUBLEBUFFER,
 628                 GLX_DEPTH_SIZE, 1,
 629                 GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
 630                 None
 631         };
 632 #endif
 633         int nogammaattrib[] =
 634         {
 635                 GLX_RGBA,
 636                 GLX_RED_SIZE, 1,
 637                 GLX_GREEN_SIZE, 1,
 638                 GLX_BLUE_SIZE, 1,
 639                 GLX_DOUBLEBUFFER,
 640                 GLX_DEPTH_SIZE, 1,
 641                 None
 642         };
 643         int width = 640, height = 480;
 644         XSetWindowAttributes attr;
 645         unsigned long mask;
 646         Window root;
 647         XVisualInfo *visinfo;
 648         qboolean fullscreen = true;
 649         int MajorVersion, MinorVersion;
 650
 651         GL_OpenLibrary();
 652
 653         Cvar_RegisterVariable (&vid_dga);
 654         Cvar_RegisterVariable (&vid_dga_mouseaccel);
 655
 656 // interpret command-line params
 657
 658 // set vid parameters
 659         if ((i = COM_CheckParm("-window")) != 0)
 660                 fullscreen = false;
 661
 662         if ((i = COM_CheckParm("-width")) != 0)
 663                 width = atoi(com_argv[i+1]);
 664
 665         if ((i = COM_CheckParm("-height")) != 0)
 666                 height = atoi(com_argv[i+1]);
 667
 668         if ((i = COM_CheckParm("-conwidth")) != 0)
 669                 vid.conwidth = atoi(com_argv[i+1]);
 670         else
 671                 vid.conwidth = 640;
 672
 673         vid.conwidth &= 0xfff8; // make it a multiple of eight
 674
 675         if (vid.conwidth < 320)
 676                 vid.conwidth = 320;
 677
 678         // pick a conheight that matches with correct aspect
 679         vid.conheight = vid.conwidth*3 / 4;
 680
 681         if ((i = COM_CheckParm("-conheight")) != 0)
 682                 vid.conheight = atoi(com_argv[i+1]);
 683         if (vid.conheight < 200)
 684                 vid.conheight = 200;
 685
 686         if (!(vidx11_display = XOpenDisplay(NULL)))
 687         {
 688                 fprintf(stderr, "Error couldn't open the X display\n");
 689                 exit(1);
 690         }
 691
 692         scrnum = DefaultScreen(vidx11_display);
 693         root = RootWindow(vidx11_display, scrnum);
 694
 695         // Get video mode list
 696         MajorVersion = MinorVersion = 0;
 697         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 698                 vidmode_ext = false;
 699         else
 700         {
 701                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 702                 vidmode_ext = true;
 703         }
 704
 705         if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
 706          || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
 707          || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
 708          || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL)
 709                 Sys_Error("glX functions not found in libGL.so.1\n");
 710
 711         visinfo = NULL;
 712 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 713 #if 0
 714         if (!COM_CheckParm("-nogamma"))
 715                 visinfo = qglXChooseVisual(vidx11_display, scrnum, gammaattrib);
 716 #endif
 717         if (!visinfo)
 718         {
 719                 visinfo = qglXChooseVisual(vidx11_display, scrnum, nogammaattrib);
 720                 if (!visinfo)
 721                 {
 722                         Sys_Error("couldn't get an RGB, Double-buffered, Depth visual\n");
 723                         exit(1);
 724                 }
 725         }
 726
 727         if (vidmode_ext)
 728         {
 729                 int best_fit, best_dist, dist, x, y;
 730
 731                 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
 732
 733                 // Are we going fullscreen?  If so, let's change video mode
 734                 if (fullscreen)
 735                 {
 736                         best_dist = 9999999;
 737                         best_fit = -1;
 738
 739                         for (i = 0; i < num_vidmodes; i++)
 740                         {
 741                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 742                                         continue;
 743
 744                                 x = width - vidmodes[i]->hdisplay;
 745                                 y = height - vidmodes[i]->vdisplay;
 746                                 dist = (x * x) + (y * y);
 747                                 if (dist < best_dist)
 748                                 {
 749                                         best_dist = dist;
 750                                         best_fit = i;
 751                                 }
 752                         }
 753
 754                         if (best_fit != -1)
 755                         {
 756                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 757                                 // to width/height =, so the window will take the full area of
 758                                 // the mode chosen
 759                                 width = vidmodes[best_fit]->hdisplay;
 760                                 height = vidmodes[best_fit]->vdisplay;
 761
 762                                 // change to the mode
 763                                 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
 764                                 vidmode_active = true;
 765
 766                                 // Move the viewport to top left
 767                                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 768                         }
 769                         else
 770                                 fullscreen = 0;
 771                 }
 772         }
 773
 774         // LordHavoc: save the visual for use in gamma ramp settings later
 775         vidx11_visual = visinfo->visual;
 776
 777         /* window attributes */
 778         attr.background_pixel = 0;
 779         attr.border_pixel = 0;
 780         // LordHavoc: save the colormap for later, too
 781         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
 782         attr.event_mask = X_MASK;
 783         if (vidmode_active)
 784         {
 785                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 786                 attr.override_redirect = True;
 787                 attr.backing_store = NotUseful;
 788                 attr.save_under = False;
 789         }
 790         else
 791                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 792
 793         win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 794         XStoreName(vidx11_display, win, gamename);
 795         XMapWindow(vidx11_display, win);
 796
 797         // LordHavoc: making the close button on a window do the right thing
 798         // seems to involve this mess, sigh...
 799         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
 800         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
 801
 802         if (vidmode_active)
 803         {
 804                 XMoveWindow(vidx11_display, win, 0, 0);
 805                 XRaiseWindow(vidx11_display, win);
 806                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 807                 XFlush(vidx11_display);
 808                 // Move the viewport to top left
 809                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 810         }
 811
 812         XFlush(vidx11_display);
 813
 814         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
 815
 816         qglXMakeCurrent(vidx11_display, win, ctx);
 817
 818         scr_width = width;
 819         scr_height = height;
 820
 821         if (vid.conheight > height)
 822                 vid.conheight = height;
 823         if (vid.conwidth > width)
 824                 vid.conwidth = width;
 825
 826         InitSig(); // trap evil signals
 827
 828         vid_hidden = false;
 829
 830         GL_Init();
 831
 832         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 833 }
 834
 835 void Sys_SendKeyEvents(void)
 836 {
 837         HandleEvents();
 838 }
 839
 840 void IN_Init(void)
 841 {
 842         if (COM_CheckParm ("-nomouse"))
 843                 mouse_avail = false;
 844 }
 845
 846 void IN_Shutdown(void)
 847 {
 848 }
 849
 850 /*
 851 ===========
 852 IN_Commands
 853 ===========
 854 */
 855 void IN_Commands (void)
 856 {
 857 }
 858
 859 void IN_Move (usercmd_t *cmd)
 860 {
 861         if (mouse_avail)
 862                 IN_Mouse(cmd, mouse_x, mouse_y);
 863         mouse_x = 0;
 864         mouse_y = 0;
 865 }
 866