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 float    old_mouse_x, old_mouse_y;
  59 static int p_mouse_x, p_mouse_y;
  60
  61 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
  62 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
  63 cvar_t m_filter = {0, "m_filter", "0"};
  64
  65 qboolean vidmode_ext = false;
  66
  67 static int win_x, win_y;
  68
  69 static int scr_width, scr_height;
  70
  71 static XF86VidModeModeInfo **vidmodes;
  72 //static int default_dotclock_vidmode;
  73 static int num_vidmodes;
  74 static qboolean vidmode_active = false;
  75
  76 static Visual *vidx11_visual;
  77 static Colormap vidx11_colormap;
  78
  79 /*-----------------------------------------------------------------------*/
  80
  81 float           gldepthmin, gldepthmax;
  82
  83 const char *gl_vendor;
  84 const char *gl_renderer;
  85 const char *gl_version;
  86 const char *gl_extensions;
  87
  88 /*-----------------------------------------------------------------------*/
  89 static int
  90 XLateKey(XKeyEvent *ev/*, qboolean modified*/)
  91 {
  92 //      char tmp[2];
  93         int key = 0;
  94         KeySym keysym;
  95
  96         keysym = XLookupKeysym(ev, 0);
  97
  98         switch(keysym)
  99         {
 100                 case XK_KP_Page_Up:     key = KP_PGUP; break;
 101                 case XK_Page_Up:        key = K_PGUP; break;
 102
 103                 case XK_KP_Page_Down:   key = KP_PGDN; break;
 104                 case XK_Page_Down:      key = K_PGDN; break;
 105
 106                 case XK_KP_Home:        key = KP_HOME; break;
 107                 case XK_Home:           key = K_HOME; break;
 108
 109                 case XK_KP_End:         key = KP_END; break;
 110                 case XK_End:            key = K_END; break;
 111
 112                 case XK_KP_Left:        key = KP_LEFTARROW; break;
 113                 case XK_Left:           key = K_LEFTARROW; break;
 114
 115                 case XK_KP_Right:       key = KP_RIGHTARROW; break;
 116                 case XK_Right:          key = K_RIGHTARROW; break;
 117
 118                 case XK_KP_Down:        key = KP_DOWNARROW; break;
 119                 case XK_Down:           key = K_DOWNARROW; break;
 120
 121                 case XK_KP_Up:          key = KP_UPARROW; break;
 122                 case XK_Up:                     key = K_UPARROW; break;
 123
 124                 case XK_Escape:         key = K_ESCAPE; break;
 125
 126                 case XK_KP_Enter:       key = KP_ENTER; break;
 127                 case XK_Return:         key = K_ENTER; break;
 128
 129                 case XK_Tab:            key = K_TAB; break;
 130
 131                 case XK_F1:                     key = K_F1; break;
 132                 case XK_F2:                     key = K_F2; break;
 133                 case XK_F3:                     key = K_F3; break;
 134                 case XK_F4:                     key = K_F4; break;
 135                 case XK_F5:                     key = K_F5; break;
 136                 case XK_F6:                     key = K_F6; break;
 137                 case XK_F7:                     key = K_F7; break;
 138                 case XK_F8:                     key = K_F8; break;
 139                 case XK_F9:                     key = K_F9; break;
 140                 case XK_F10:            key = K_F10; break;
 141                 case XK_F11:            key = K_F11; break;
 142                 case XK_F12:            key = K_F12; break;
 143
 144                 case XK_BackSpace:      key = K_BACKSPACE; break;
 145
 146                 case XK_KP_Delete:      key = KP_DEL; break;
 147                 case XK_Delete:         key = K_DEL; break;
 148
 149                 case XK_Pause:          key = K_PAUSE; break;
 150
 151                 case XK_Shift_L:
 152                 case XK_Shift_R:        key = K_SHIFT; break;
 153
 154                 case XK_Execute:
 155                 case XK_Control_L:
 156                 case XK_Control_R:      key = K_CTRL; break;
 157
 158                 case XK_Mode_switch:
 159                 case XK_Alt_L:
 160                 case XK_Meta_L:
 161                 case XK_Alt_R:
 162                 case XK_Meta_R:         key = K_ALT; break;
 163
 164                 case XK_Caps_Lock:      key = K_CAPSLOCK; break;
 165                 case XK_KP_Begin:       key = KP_5; break;
 166
 167                 case XK_Insert:         key = K_INS; break;
 168                 case XK_KP_Insert:      key = KP_INS; break;
 169
 170                 case XK_KP_Multiply:    key = KP_MULTIPLY; break;
 171                 case XK_KP_Add:         key = KP_PLUS; break;
 172                 case XK_KP_Subtract:    key = KP_MINUS; break;
 173                 case XK_KP_Divide:      key = KP_DIVIDE; break;
 174
 175                 /* For Sun keyboards */
 176                 case XK_F27:            key = K_HOME; break;
 177                 case XK_F29:            key = K_PGUP; break;
 178                 case XK_F33:            key = K_END; break;
 179                 case XK_F35:            key = K_PGDN; break;
 180
 181                 default:
 182                         if (keysym < 128)
 183                         {
 184                                 /* ASCII keys */
 185                                 key = keysym;
 186                                 if (/*!modified && */((key >= 'A') && (key <= 'Z')))
 187                                         key = key + ('a' - 'A');
 188                         }
 189                         break;
 190         }
 191
 192         return key;
 193 }
 194
 195 static Cursor CreateNullCursor(Display *display, Window root)
 196 {
 197         Pixmap cursormask;
 198         XGCValues xgc;
 199         GC gc;
 200         XColor dummycolour;
 201         Cursor cursor;
 202
 203         cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
 204         xgc.function = GXclear;
 205         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 206         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 207         dummycolour.pixel = 0;
 208         dummycolour.red = 0;
 209         dummycolour.flags = 04;
 210         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 211         XFreePixmap(display,cursormask);
 212         XFreeGC(display,gc);
 213         return cursor;
 214 }
 215
 216 static void install_grabs(void)
 217 {
 218         XWindowAttributes attribs_1;
 219         XSetWindowAttributes attribs_2;
 220
 221         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 222         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 223         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 224
 225 // inviso cursor
 226         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 227
 228         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 229
 230         if (vid_dga.integer)
 231         {
 232                 int MajorVersion, MinorVersion;
 233
 234                 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 235                 {
 236                         // unable to query, probalby not supported
 237                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 238                         vid_dga.integer = 0;
 239                 }
 240                 else
 241                 {
 242                         vid_dga.integer = 1;
 243                         XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 244                         XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 245                 }
 246         }
 247         else
 248                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
 249
 250         XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 251
 252         mouse_active = true;
 253         mouse_x = mouse_y = 0;
 254
 255 //      XSync(vidx11_display, True);
 256 }
 257
 258 static void uninstall_grabs(void)
 259 {
 260         if (!vidx11_display || !win)
 261                 return;
 262
 263         if (vid_dga.integer == 1)
 264                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 265
 266         XUngrabPointer(vidx11_display, CurrentTime);
 267         XUngrabKeyboard(vidx11_display, CurrentTime);
 268
 269 // inviso cursor
 270         XUndefineCursor(vidx11_display, win);
 271
 272         mouse_active = false;
 273 }
 274
 275 static void HandleEvents(void)
 276 {
 277         XEvent event;
 278 //      KeySym ks;
 279         qboolean dowarp = false;
 280
 281         if (!vidx11_display)
 282                 return;
 283
 284         while (XPending(vidx11_display))
 285         {
 286                 XNextEvent(vidx11_display, &event);
 287
 288                 switch (event.type)
 289                 {
 290                 case KeyPress:
 291                 case KeyRelease:
 292                         Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
 293                         break;
 294
 295                 case MotionNotify:
 296                         if (usingmouse)
 297                         {
 298                                 if (vid_dga.integer == 1)
 299                                 {
 300                                         mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
 301                                         mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
 302                                 }
 303                                 else
 304                                 {
 305                                         /*
 306                                         if (!p_mouse_x && !p_mouse_y)
 307                                         {
 308                                                 Con_Printf("event->xmotion.x: %d\n", event.xmotion.x);
 309                                                 Con_Printf("event->xmotion.y: %d\n", event.xmotion.y);
 310                                         }
 311                                         */
 312                                         //if (usingmouse)
 313                                         {
 314                                                 if (!event.xmotion.send_event)
 315                                                 {
 316                                                         mouse_x += event.xmotion.x - p_mouse_x;
 317                                                         mouse_y += event.xmotion.y - p_mouse_y;
 318                                                         if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
 319                                                                 dowarp = true;
 320                                                 }
 321                                         }
 322                                         /*
 323                                         else
 324                                         {
 325                                                 mouse_x += (event.xmotion.x - p_mouse_x);
 326                                                 mouse_y += (event.xmotion.y - p_mouse_y);
 327                                         }
 328                                         */
 329                                         p_mouse_x = event.xmotion.x;
 330                                         p_mouse_y = event.xmotion.y;
 331                                 }
 332                         }
 333                         else
 334                                 ui_mouseupdate(event.xmotion.x, event.xmotion.y);
 335                         break;
 336
 337                 case ButtonPress:
 338                         switch(event.xbutton.button)
 339                         {
 340                         case 1:
 341                                 Key_Event(K_MOUSE1, true);
 342                                 break;
 343                         case 2:
 344                                 Key_Event(K_MOUSE3, true);
 345                                 break;
 346                         case 3:
 347                                 Key_Event(K_MOUSE2, true);
 348                                 break;
 349                         case 4:
 350                                 Key_Event(K_MWHEELUP, true);
 351                                 break;
 352                         case 5:
 353                                 Key_Event(K_MWHEELDOWN, true);
 354                                 break;
 355                 default:
 356                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
 357                                 break;
 358                         }
 359                         break;
 360
 361                 case ButtonRelease:
 362                         switch(event.xbutton.button)
 363                         {
 364                         case 1:
 365                                 Key_Event(K_MOUSE1, false);
 366                                 break;
 367                         case 2:
 368                                 Key_Event(K_MOUSE3, false);
 369                                 break;
 370                         case 3:
 371                                 Key_Event(K_MOUSE2, false);
 372                                 break;
 373                         case 4:
 374                                 Key_Event(K_MWHEELUP, false);
 375                                 break;
 376                         case 5:
 377                                 Key_Event(K_MWHEELDOWN, false);
 378                                 break;
 379                 default:
 380                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
 381                                 break;
 382                         }
 383                         break;
 384
 385                 case CreateNotify :
 386                         win_x = event.xcreatewindow.x;
 387                         win_y = event.xcreatewindow.y;
 388                         break;
 389
 390                 case ConfigureNotify :
 391                         win_x = event.xconfigure.x;
 392                         win_y = event.xconfigure.y;
 393                         break;
 394                 }
 395         }
 396
 397         if (dowarp)
 398         {
 399                 /* move the mouse to the window center again */
 400                 p_mouse_x = scr_width / 2;
 401                 p_mouse_y = scr_height / 2;
 402                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
 403         }
 404
 405 }
 406
 407 static void IN_DeactivateMouse( void )
 408 {
 409         if (!mouse_avail || !vidx11_display || !win)
 410                 return;
 411
 412         if (mouse_active)
 413         {
 414                 uninstall_grabs();
 415                 mouse_active = false;
 416         }
 417 }
 418
 419 static void IN_ActivateMouse( void )
 420 {
 421         if (!mouse_avail || !vidx11_display || !win)
 422                 return;
 423
 424         if (!mouse_active)
 425         {
 426                 mouse_x = mouse_y = 0; // don't spazz
 427                 install_grabs();
 428                 mouse_active = true;
 429         }
 430 }
 431
 432
 433 void VID_Shutdown(void)
 434 {
 435         if (!ctx || !vidx11_display)
 436                 return;
 437
 438         if (vidx11_display)
 439         {
 440                 uninstall_grabs();
 441
 442                 if (vidmode_active)
 443                         XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
 444 /* Disabled, causes a segfault during shutdown.
 445                 if (ctx)
 446                         glXDestroyContext(vidx11_display, ctx);
 447 */
 448                 if (win)
 449                         XDestroyWindow(vidx11_display, win);
 450                 XCloseDisplay(vidx11_display);
 451         }
 452         vidmode_active = false;
 453         vidx11_display = NULL;
 454         win = 0;
 455         ctx = NULL;
 456 }
 457
 458 void signal_handler(int sig)
 459 {
 460         printf("Received signal %d, exiting...\n", sig);
 461         Sys_Quit();
 462         exit(0);
 463 }
 464
 465 void InitSig(void)
 466 {
 467         signal(SIGHUP, signal_handler);
 468         signal(SIGINT, signal_handler);
 469         signal(SIGQUIT, signal_handler);
 470         signal(SIGILL, signal_handler);
 471         signal(SIGTRAP, signal_handler);
 472         signal(SIGIOT, signal_handler);
 473         signal(SIGBUS, signal_handler);
 474         signal(SIGFPE, signal_handler);
 475         signal(SIGSEGV, signal_handler);
 476         signal(SIGTERM, signal_handler);
 477 }
 478
 479 /*
 480 =================
 481 VID_GetWindowSize
 482 =================
 483 */
 484 void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 485 {
 486         *x = *y = 0;
 487         *width = scr_width;
 488         *height = scr_height;
 489 }
 490
 491 void VID_Finish (void)
 492 {
 493         int usemouse;
 494         if (r_render.integer)
 495         {
 496                 glFinish();
 497                 glXSwapBuffers(vidx11_display, win);
 498         }
 499
 500 // handle the mouse state when windowed if that's changed
 501         usemouse = false;
 502         if (vid_mouse.integer && key_dest == key_game)
 503                 usemouse = true;
 504         if (vidmode_active)
 505                 usemouse = true;
 506         if (usemouse)
 507         {
 508                 if (!usingmouse)
 509                 {
 510                         usingmouse = true;
 511                         IN_ActivateMouse ();
 512                 }
 513         }
 514         else
 515         {
 516                 if (usingmouse)
 517                 {
 518                         usingmouse = false;
 519                         IN_DeactivateMouse ();
 520                 }
 521         }
 522 }
 523
 524 // LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
 525 // SDL than to simply use the XFree gamma ramp extension, but that affects the
 526 // whole screen even when the game window is inactive, this only affects the
 527 // screen while the window is active, very desirable behavior :)
 528 int VID_SetGamma(float prescale, float gamma, float scale, float base)
 529 {
 530 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 531 #if 1
 532         return FALSE;
 533 #else
 534         int i, ncolors, c;
 535         unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
 536         XColor xcmap[256];
 537         unsigned short ramp[256];
 538
 539         if (COM_CheckParm("-nogamma"))
 540                 return FALSE;
 541
 542         if (vidx11_visual->class != DirectColor)
 543         {
 544                 Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
 545                 return FALSE;
 546         }
 547
 548         Rmask = vidx11_visual->red_mask;
 549         Gmask = vidx11_visual->green_mask;
 550         Bmask = vidx11_visual->blue_mask;
 551
 552         Rshift = 0;
 553         Rloss = 8;
 554         if ((mask = Rmask))
 555         {
 556                 for (;!(mask & 1);mask >>= 1)
 557                         ++Rshift;
 558                 for (;(mask & 1);mask >>= 1)
 559                         --Rloss;
 560         }
 561         Gshift = 0;
 562         Gloss = 8;
 563         if ((mask = Gmask))
 564         {
 565                 for (;!(mask & 1);mask >>= 1)
 566                         ++Gshift;
 567                 for (;(mask & 1);mask >>= 1)
 568                         --Gloss;
 569         }
 570         Bshift = 0;
 571         Bloss = 8;
 572         if ((mask = Bmask))
 573         {
 574                 for (;!(mask & 1);mask >>= 1)
 575                         ++Bshift;
 576                 for (;(mask & 1);mask >>= 1)
 577                         --Bloss;
 578         }
 579
 580         BuildGammaTable16(prescale, gamma, scale, base, ramp);
 581
 582         // convert gamma ramp to palette (yes this seems odd)
 583         ncolors = vidx11_visual->map_entries;
 584         for (i = 0;i < ncolors;i++)
 585         {
 586                 c = (256 * i / ncolors);
 587                 xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
 588                 xcmap[i].red   = ramp[c];
 589                 xcmap[i].green = ramp[c];
 590                 xcmap[i].blue  = ramp[c];
 591                 xcmap[i].flags = (DoRed|DoGreen|DoBlue);
 592         }
 593         XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
 594         XSync(vidx11_display, false);
 595         // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
 596         return TRUE;
 597 #endif
 598 }
 599
 600 void VID_Init(void)
 601 {
 602         int i;
 603 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 604 #if 0
 605         int gammaattrib[] =
 606         {
 607                 GLX_RGBA,
 608                 GLX_RED_SIZE, 1,
 609                 GLX_GREEN_SIZE, 1,
 610                 GLX_BLUE_SIZE, 1,
 611                 GLX_DOUBLEBUFFER,
 612                 GLX_DEPTH_SIZE, 1,
 613                 GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
 614                 None
 615         };
 616 #endif
 617         int nogammaattrib[] =
 618         {
 619                 GLX_RGBA,
 620                 GLX_RED_SIZE, 1,
 621                 GLX_GREEN_SIZE, 1,
 622                 GLX_BLUE_SIZE, 1,
 623                 GLX_DOUBLEBUFFER,
 624                 GLX_DEPTH_SIZE, 1,
 625                 None
 626         };
 627 //      char    gldir[MAX_OSPATH];
 628         int width = 640, height = 480;
 629         XSetWindowAttributes attr;
 630         unsigned long mask;
 631         Window root;
 632         XVisualInfo *visinfo;
 633         qboolean fullscreen = true;
 634         int MajorVersion, MinorVersion;
 635
 636         Cvar_RegisterVariable (&vid_dga);
 637         Cvar_RegisterVariable (&vid_dga_mouseaccel);
 638         Cvar_RegisterVariable (&m_filter);
 639
 640 // interpret command-line params
 641
 642 // set vid parameters
 643         if ((i = COM_CheckParm("-window")) != 0)
 644                 fullscreen = false;
 645
 646         if ((i = COM_CheckParm("-width")) != 0)
 647                 width = atoi(com_argv[i+1]);
 648
 649         if ((i = COM_CheckParm("-height")) != 0)
 650                 height = atoi(com_argv[i+1]);
 651
 652         if ((i = COM_CheckParm("-conwidth")) != 0)
 653                 vid.conwidth = atoi(com_argv[i+1]);
 654         else
 655                 vid.conwidth = 640;
 656
 657         vid.conwidth &= 0xfff8; // make it a multiple of eight
 658
 659         if (vid.conwidth < 320)
 660                 vid.conwidth = 320;
 661
 662         // pick a conheight that matches with correct aspect
 663         vid.conheight = vid.conwidth*3 / 4;
 664
 665         if ((i = COM_CheckParm("-conheight")) != 0)
 666                 vid.conheight = atoi(com_argv[i+1]);
 667         if (vid.conheight < 200)
 668                 vid.conheight = 200;
 669
 670         if (!(vidx11_display = XOpenDisplay(NULL)))
 671         {
 672                 fprintf(stderr, "Error couldn't open the X display\n");
 673                 exit(1);
 674         }
 675
 676         scrnum = DefaultScreen(vidx11_display);
 677         root = RootWindow(vidx11_display, scrnum);
 678
 679         // Get video mode list
 680         MajorVersion = MinorVersion = 0;
 681         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 682                 vidmode_ext = false;
 683         else
 684         {
 685                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 686                 vidmode_ext = true;
 687         }
 688
 689         visinfo = NULL;
 690 // LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
 691 #if 0
 692         if (!COM_CheckParm("-nogamma"))
 693                 visinfo = glXChooseVisual(vidx11_display, scrnum, gammaattrib);
 694 #endif
 695         if (!visinfo)
 696         {
 697                 visinfo = glXChooseVisual(vidx11_display, scrnum, nogammaattrib);
 698                 if (!visinfo)
 699                 {
 700                         fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 701                         exit(1);
 702                 }
 703         }
 704
 705         if (vidmode_ext)
 706         {
 707                 int best_fit, best_dist, dist, x, y;
 708
 709                 XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
 710
 711                 // Are we going fullscreen?  If so, let's change video mode
 712                 if (fullscreen)
 713                 {
 714                         best_dist = 9999999;
 715                         best_fit = -1;
 716
 717                         for (i = 0; i < num_vidmodes; i++)
 718                         {
 719                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 720                                         continue;
 721
 722                                 x = width - vidmodes[i]->hdisplay;
 723                                 y = height - vidmodes[i]->vdisplay;
 724                                 dist = (x * x) + (y * y);
 725                                 if (dist < best_dist)
 726                                 {
 727                                         best_dist = dist;
 728                                         best_fit = i;
 729                                 }
 730                         }
 731
 732                         if (best_fit != -1)
 733                         {
 734                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 735                                 // to width/height =, so the window will take the full area of
 736                                 // the mode chosen
 737                                 width = vidmodes[best_fit]->hdisplay;
 738                                 height = vidmodes[best_fit]->vdisplay;
 739
 740                                 // change to the mode
 741                                 XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
 742                                 vidmode_active = true;
 743
 744                                 // Move the viewport to top left
 745                                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 746                         }
 747                         else
 748                                 fullscreen = 0;
 749                 }
 750         }
 751
 752         // LordHavoc: save the visual for use in gamma ramp settings later
 753         vidx11_visual = visinfo->visual;
 754
 755         /* window attributes */
 756         attr.background_pixel = 0;
 757         attr.border_pixel = 0;
 758         // LordHavoc: save the colormap for later, too
 759         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
 760         attr.event_mask = X_MASK;
 761         if (vidmode_active)
 762         {
 763                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 764                 attr.override_redirect = True;
 765                 attr.backing_store = NotUseful;
 766                 attr.save_under = False;
 767         }
 768         else
 769                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 770
 771         win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 772         XStoreName(vidx11_display, win, gamename);
 773         XMapWindow(vidx11_display, win);
 774
 775         if (vidmode_active)
 776         {
 777                 XMoveWindow(vidx11_display, win, 0, 0);
 778                 XRaiseWindow(vidx11_display, win);
 779                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 780                 XFlush(vidx11_display);
 781                 // Move the viewport to top left
 782                 XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
 783         }
 784
 785         XFlush(vidx11_display);
 786
 787         ctx = glXCreateContext(vidx11_display, visinfo, NULL, True);
 788
 789         glXMakeCurrent(vidx11_display, win, ctx);
 790
 791         scr_width = width;
 792         scr_height = height;
 793
 794         if (vid.conheight > height)
 795                 vid.conheight = height;
 796         if (vid.conwidth > width)
 797                 vid.conwidth = width;
 798
 799         InitSig(); // trap evil signals
 800
 801         GL_Init();
 802
 803         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 804
 805         // force a surface cache flush
 806 //      vid.recalc_refdef = 1;
 807 }
 808
 809 void Sys_SendKeyEvents(void)
 810 {
 811         HandleEvents();
 812 }
 813
 814 void IN_Init(void)
 815 {
 816         if (COM_CheckParm ("-nomouse"))
 817                 mouse_avail = false;
 818 }
 819
 820 void IN_Shutdown(void)
 821 {
 822 }
 823
 824 /*
 825 ===========
 826 IN_Commands
 827 ===========
 828 */
 829 void IN_Commands (void)
 830 {
 831 }
 832
 833 /*
 834 ===========
 835 IN_Move
 836 ===========
 837 */
 838 void IN_MouseMove (usercmd_t *cmd)
 839 {
 840         if (!mouse_avail)
 841                 return;
 842
 843         if (m_filter.integer)
 844         {
 845                 mouse_x = (mouse_x + old_mouse_x) * 0.5;
 846                 mouse_y = (mouse_y + old_mouse_y) * 0.5;
 847
 848                 old_mouse_x = mouse_x;
 849                 old_mouse_y = mouse_y;
 850         }
 851
 852         // LordHavoc: viewzoom affects mouse sensitivity for sniping
 853         mouse_x *= sensitivity.value * cl.viewzoom;
 854         mouse_y *= sensitivity.value * cl.viewzoom;
 855
 856         if (in_strafe.state & 1)
 857                 cmd->sidemove += m_side.value * mouse_x;
 858         else
 859                 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
 860
 861         //if (freelook)
 862                 V_StopPitchDrift ();
 863
 864         if (/*freelook && */!(in_strafe.state & 1))
 865                 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
 866         else
 867         {
 868                 if ((in_strafe.state & 1) && noclip_anglehack)
 869                         cmd->upmove -= m_forward.value * mouse_y;
 870                 else
 871                         cmd->forwardmove -= m_forward.value * mouse_y;
 872         }
 873         mouse_x = mouse_y = 0.0;
 874 }
 875
 876 void IN_Move (usercmd_t *cmd)
 877 {
 878         IN_MouseMove(cmd);
 879         cl.viewangles[PITCH] = bound (in_pitch_min.value, cl.viewangles[PITCH], in_pitch_max.value);
 880 }
 881
 882