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