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 void VID_CheckMultitexture(void)
 477 {
 478         void *prjobj;
 479         qglMTexCoord2f = NULL;
 480         qglSelectTexture = NULL;
 481         // Check to see if multitexture is disabled
 482         if (COM_CheckParm("-nomtex"))
 483         {
 484                 Con_Printf("...multitexture disabled\n");
 485                 return;
 486         }
 487         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 488         {
 489                 Con_Printf("Unable to open symbol list for main program.\n");
 490                 return;
 491         }
 492         // Test for ARB_multitexture
 493         if (!COM_CheckParm("-SGISmtex") && strstr(gl_extensions, "GL_ARB_multitexture "))
 494         {
 495                 Con_Printf("...using GL_ARB_multitexture\n");
 496                 qglMTexCoord2f = (void *) dlsym(prjobj, "glMultiTexCoord2fARB");
 497                 qglSelectTexture = (void *) dlsym(prjobj, "glActiveTextureARB");
 498                 if (qglMTexCoord2f != NULL && qglSelectTexture != NULL)
 499                 {
 500                         gl_mtexable = true;
 501                         gl_mtex_enum = GL_TEXTURE0_ARB;
 502                 }
 503                 else
 504                 {
 505                         if (qglMTexCoord2f == NULL)
 506                                 Con_Printf("dlsym(prjobj, \"glMultiTexCoord2fARB\") == NULL!\n");
 507                         if (qglSelectTexture == NULL)
 508                                 Con_Printf("dlsym(prjobj, \"glActiveTextureARB\") == NULL!\n");
 509         }
 510         }
 511         if (!gl_mtexable && strstr(gl_extensions, "GL_SGIS_multitexture ")) // Test for SGIS_multitexture (if ARB_multitexture not found)
 512         {
 513                 Con_Printf("...using GL_SGIS_multitexture\n");
 514                 qglMTexCoord2f = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
 515                 qglSelectTexture = (void *) dlsym(prjobj, "glSelectTextureSGIS");
 516                 if (qglMTexCoord2f != NULL && qglSelectTexture != NULL)
 517                 {
 518                         gl_mtexable = true;
 519                         gl_mtex_enum = TEXTURE0_SGIS;
 520                 }
 521                 else
 522                 {
 523                         if (qglMTexCoord2f == NULL)
 524                                 Con_Printf("dlsym(prjobj, \"glMTexCoord2fSGIS\") == NULL!\n");
 525                         if (qglSelectTexture == NULL)
 526                                 Con_Printf("dlsym(prjobj, \"glSelectTextureSGIS\") == NULL!\n");
 527         }
 528         }
 529         if (!gl_mtexable)
 530                 Con_Printf("...multitexture disabled (not detected)\n");
 531         dlclose(prjobj);
 532 }
 533
 534 void VID_CheckCVA(void)
 535 {
 536         void *prjobj;
 537         qglLockArraysEXT = NULL;
 538         qglUnlockArraysEXT = NULL;
 539         gl_supportslockarrays = false;
 540         if (COM_CheckParm("-nocva"))
 541         {
 542                 Con_Printf("...compiled vertex arrays disabled\n");
 543                 return;
 544         }
 545         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 546         {
 547                 Con_Printf("Unable to open symbol list for main program.\n");
 548                 return;
 549         }
 550         if (strstr(gl_extensions, "GL_EXT_compiled_vertex_array"))
 551         {
 552                 Con_Printf("...using compiled vertex arrays\n");
 553                 qglLockArraysEXT = (void *) dlsym(prjobj, "glLockArraysEXT");
 554                 qglUnlockArraysEXT = (void *) dlsym(prjobj, "glUnlockArraysEXT");
 555                 if (qglLockArraysEXT != NULL && qglUnlockArraysEXT != NULL)
 556                         gl_supportslockarrays = true;
 557                 else
 558                 {
 559                         if (qglLockArraysEXT == NULL)
 560                                 Con_Printf("dlsym(prjobj, \"glLockArraysEXT\") == NULL!\n");
 561                         if (qglUnlockArraysEXT == NULL)
 562                                 Con_Printf("dlsym(prjobj, \"glUnlockArraysEXT\") == NULL!\n");
 563                         Con_Printf("...compiled vertex arrays disabled\n");
 564         }
 565         }
 566         dlclose(prjobj);
 567 }
 568
 569 /*
 570 =================
 571 GL_BeginRendering
 572
 573 =================
 574 */
 575 void GL_BeginRendering (int *x, int *y, int *width, int *height)
 576 {
 577         *x = *y = 0;
 578         *width = scr_width;
 579         *height = scr_height;
 580
 581 //      glViewport (*x, *y, *width, *height);
 582 }
 583
 584
 585 void GL_EndRendering (void)
 586 {
 587         int usemouse;
 588         if (!r_render.value)
 589                 return;
 590         glFlush();
 591         glXSwapBuffers(dpy, win);
 592
 593 // handle the mouse state when windowed if that's changed
 594         usemouse = false;
 595         if (vid_mouse.value && key_dest == key_game)
 596                 usemouse = true;
 597         if (vidmode_active)
 598                 usemouse = true;
 599         if (usemouse)
 600         {
 601                 if (!usingmouse)
 602                 {
 603                         usingmouse = true;
 604                         IN_ActivateMouse ();
 605                 }
 606         }
 607         else
 608         {
 609                 if (usingmouse)
 610                 {
 611                         usingmouse = false;
 612                         IN_DeactivateMouse ();
 613                 }
 614         }
 615 }
 616
 617 int VID_SetGamma(float prescale, float gamma, float scale, float base)
 618 {
 619         return FALSE;
 620 }
 621
 622 void VID_Init(void)
 623 {
 624         int i;
 625         int attrib[] =
 626         {
 627                 GLX_RGBA,
 628                 GLX_RED_SIZE, 1,
 629                 GLX_GREEN_SIZE, 1,
 630                 GLX_BLUE_SIZE, 1,
 631                 GLX_DOUBLEBUFFER,
 632                 GLX_DEPTH_SIZE, 1,
 633                 None
 634         };
 635 //      char    gldir[MAX_OSPATH];
 636         int width = 640, height = 480;
 637         XSetWindowAttributes attr;
 638         unsigned long mask;
 639         Window root;
 640         XVisualInfo *visinfo;
 641         qboolean fullscreen = true;
 642         int MajorVersion, MinorVersion;
 643         int actualWidth, actualHeight;
 644
 645         Cvar_RegisterVariable (&vid_mouse);
 646         Cvar_RegisterVariable (&vid_dga);
 647         Cvar_RegisterVariable (&vid_dga_mouseaccel);
 648         Cvar_RegisterVariable (&m_filter);
 649
 650 // interpret command-line params
 651
 652 // set vid parameters
 653         if ((i = COM_CheckParm("-window")) != 0)
 654                 fullscreen = false;
 655
 656         if ((i = COM_CheckParm("-width")) != 0)
 657                 width = atoi(com_argv[i+1]);
 658
 659         if ((i = COM_CheckParm("-height")) != 0)
 660                 height = atoi(com_argv[i+1]);
 661
 662         if ((i = COM_CheckParm("-conwidth")) != 0)
 663                 vid.conwidth = atoi(com_argv[i+1]);
 664         else
 665                 vid.conwidth = 640;
 666
 667         vid.conwidth &= 0xfff8; // make it a multiple of eight
 668
 669         if (vid.conwidth < 320)
 670                 vid.conwidth = 320;
 671
 672         // pick a conheight that matches with correct aspect
 673         vid.conheight = vid.conwidth*3 / 4;
 674
 675         if ((i = COM_CheckParm("-conheight")) != 0)
 676                 vid.conheight = atoi(com_argv[i+1]);
 677         if (vid.conheight < 200)
 678                 vid.conheight = 200;
 679
 680         if (!(dpy = XOpenDisplay(NULL)))
 681         {
 682                 fprintf(stderr, "Error couldn't open the X display\n");
 683                 exit(1);
 684         }
 685
 686         scrnum = DefaultScreen(dpy);
 687         root = RootWindow(dpy, scrnum);
 688
 689         // Get video mode list
 690         MajorVersion = MinorVersion = 0;
 691         if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion))
 692                 vidmode_ext = false;
 693         else
 694         {
 695                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 696                 vidmode_ext = true;
 697         }
 698
 699         visinfo = glXChooseVisual(dpy, scrnum, attrib);
 700         if (!visinfo)
 701         {
 702                 fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 703                 exit(1);
 704         }
 705
 706         if (vidmode_ext)
 707         {
 708                 int best_fit, best_dist, dist, x, y;
 709
 710                 XF86VidModeGetAllModeLines(dpy, scrnum, &num_vidmodes, &vidmodes);
 711
 712                 // Are we going fullscreen?  If so, let's change video mode
 713                 if (fullscreen)
 714                 {
 715                         best_dist = 9999999;
 716                         best_fit = -1;
 717
 718                         for (i = 0; i < num_vidmodes; i++)
 719                         {
 720                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 721                                         continue;
 722
 723                                 x = width - vidmodes[i]->hdisplay;
 724                                 y = height - vidmodes[i]->vdisplay;
 725                                 dist = (x * x) + (y * y);
 726                                 if (dist < best_dist)
 727                                 {
 728                                         best_dist = dist;
 729                                         best_fit = i;
 730                                 }
 731                         }
 732
 733                         if (best_fit != -1)
 734                         {
 735                                 actualWidth = vidmodes[best_fit]->hdisplay;
 736                                 actualHeight = vidmodes[best_fit]->vdisplay;
 737
 738                                 // change to the mode
 739                                 XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[best_fit]);
 740                                 vidmode_active = true;
 741
 742                                 // Move the viewport to top left
 743                                 XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
 744                         }
 745                         else
 746                                 fullscreen = 0;
 747                 }
 748         }
 749
 750         /* window attributes */
 751         attr.background_pixel = 0;
 752         attr.border_pixel = 0;
 753         attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
 754         attr.event_mask = X_MASK;
 755         if (vidmode_active)
 756         {
 757                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 758                 attr.override_redirect = True;
 759                 attr.backing_store = NotUseful;
 760                 attr.save_under = False;
 761         }
 762         else
 763                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 764
 765         win = XCreateWindow(dpy, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 766         XStoreName(dpy, win, "DarkPlaces-GLX");
 767         XMapWindow(dpy, win);
 768
 769         if (vidmode_active)
 770         {
 771                 XMoveWindow(dpy, win, 0, 0);
 772                 XRaiseWindow(dpy, win);
 773                 XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
 774                 XFlush(dpy);
 775                 // Move the viewport to top left
 776                 XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
 777         }
 778
 779         XFlush(dpy);
 780
 781         ctx = glXCreateContext(dpy, visinfo, NULL, True);
 782
 783         glXMakeCurrent(dpy, win, ctx);
 784
 785         scr_width = width;
 786         scr_height = height;
 787
 788         if (vid.conheight > height)
 789                 vid.conheight = height;
 790         if (vid.conwidth > width)
 791                 vid.conwidth = width;
 792         vid.width = vid.conwidth;
 793         vid.height = vid.conheight;
 794
 795         InitSig(); // trap evil signals
 796
 797         GL_Init();
 798
 799         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 800
 801         // force a surface cache flush
 802         vid.recalc_refdef = 1;
 803 }
 804
 805 void Sys_SendKeyEvents(void)
 806 {
 807         HandleEvents();
 808 }
 809
 810 void IN_Init(void)
 811 {
 812 }
 813
 814 void IN_Shutdown(void)
 815 {
 816 }
 817
 818 /*
 819 ===========
 820 IN_Commands
 821 ===========
 822 */
 823 void IN_Commands (void)
 824 {
 825 }
 826
 827 /*
 828 ===========
 829 IN_Move
 830 ===========
 831 */
 832 void IN_MouseMove (usercmd_t *cmd)
 833 {
 834         if (!mouse_avail)
 835                 return;
 836
 837         if (m_filter.value)
 838         {
 839                 mouse_x = (mouse_x + old_mouse_x) * 0.5;
 840                 mouse_y = (mouse_y + old_mouse_y) * 0.5;
 841
 842                 old_mouse_x = mouse_x;
 843                 old_mouse_y = mouse_y;
 844         }
 845
 846         mouse_x *= sensitivity.value;
 847         mouse_y *= sensitivity.value;
 848
 849         if (in_strafe.state & 1)
 850                 cmd->sidemove += m_side.value * mouse_x;
 851         else
 852                 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
 853
 854         //if (freelook)
 855                 V_StopPitchDrift ();
 856
 857         if (/*freelook && */!(in_strafe.state & 1))
 858         {
 859                 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
 860                 cl.viewangles[PITCH] = bound (-70, cl.viewangles[PITCH], 80);
 861         }
 862         else
 863         {
 864                 if ((in_strafe.state & 1) && noclip_anglehack)
 865                         cmd->upmove -= m_forward.value * mouse_y;
 866                 else
 867                         cmd->forwardmove -= m_forward.value * mouse_y;
 868         }
 869         mouse_x = mouse_y = 0.0;
 870 }
 871
 872 void IN_Move (usercmd_t *cmd)
 873 {
 874         IN_MouseMove(cmd);
 875 }
 876
 877