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 <signal.h>
  21
  22 #include <dlfcn.h>
  23
  24 #include <X11/Xlib.h>
  25 #include <X11/Xutil.h>
  26 #include <X11/Xatom.h>
  27 #include <X11/XKBlib.h> // TODO possibly ifdef this out on non-supporting systems... Solaris (as always)?
  28 #include <GL/glx.h>
  29
  30 #include "quakedef.h"
  31
  32 #include <X11/keysym.h>
  33 #include <X11/cursorfont.h>
  34 #include <X11/xpm.h>
  35
  36 #include <X11/extensions/XShm.h>
  37 #if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
  38 #include <X11/extensions/xf86dga.h>
  39 #endif
  40 #include <X11/extensions/xf86vmode.h>
  41
  42 #include "nexuiz.xpm"
  43 #include "darkplaces.xpm"
  44
  45 // Tell startup code that we have a client
  46 int cl_available = true;
  47
  48 // note: if we used the XRandR extension we could support refresh rates
  49 qboolean vid_supportrefreshrate = false;
  50
  51 //GLX prototypes
  52 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  53 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  54 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
  55 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  56 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
  57 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
  58
  59 //GLX_ARB_get_proc_address
  60 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
  61
  62 static dllfunction_t getprocaddressfuncs[] =
  63 {
  64         {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
  65         {NULL, NULL}
  66 };
  67
  68 //GLX_SGI_swap_control
  69 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
  70
  71 static dllfunction_t swapcontrolfuncs[] =
  72 {
  73         {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
  74         {NULL, NULL}
  75 };
  76
  77 static Display *vidx11_display = NULL;
  78 static int vidx11_screen;
  79 static Window win;
  80 static GLXContext ctx = NULL;
  81
  82 Atom wm_delete_window_atom;
  83
  84 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  85 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  86                     PointerMotionMask | ButtonMotionMask)
  87 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
  88                 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
  89                 LeaveWindowMask)
  90
  91
  92 static qboolean mouse_avail = true;
  93 static qboolean vid_usingmousegrab = false;
  94 static qboolean vid_usingmouse = false;
  95 static qboolean vid_usinghidecursor = false;
  96 static qboolean vid_usingvsync = false;
  97 static qboolean vid_usevsync = false;
  98 static qboolean vid_x11_hardwaregammasupported = false;
  99 static qboolean vid_x11_dgasupported = false;
 100 static int vid_x11_gammarampsize = 0;
 101
 102 #if !defined(__APPLE__) && !defined(SUNOS)
 103 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 104 static qboolean vid_usingdgamouse = false;
 105 #endif
 106 cvar_t vid_netwmfullscreen = {CVAR_SAVE, "vid_netwmfullscreen", "0", "make use _NET_WM_STATE_FULLSCREEN; turn this off if fullscreen does not work for you"};
 107
 108 qboolean vidmode_ext = false;
 109
 110 static int win_x, win_y;
 111
 112 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 113 static qboolean vid_isfullscreen = false;
 114 static qboolean vid_isnetwmfullscreen = false;
 115
 116 static Visual *vidx11_visual;
 117 static Colormap vidx11_colormap;
 118
 119 /*-----------------------------------------------------------------------*/
 120
 121 static int XLateKey(XKeyEvent *ev, char *ascii)
 122 {
 123         int key = 0;
 124         char buf[64];
 125         KeySym keysym, shifted;
 126
 127         keysym = XLookupKeysym (ev, 0);
 128         XLookupString(ev, buf, sizeof buf, &shifted, 0);
 129         *ascii = buf[0];
 130
 131         switch(keysym)
 132         {
 133                 case XK_KP_Page_Up:      key = K_KP_PGUP; break;
 134                 case XK_Page_Up:         key = K_PGUP; break;
 135
 136                 case XK_KP_Page_Down: key = K_KP_PGDN; break;
 137                 case XK_Page_Down:       key = K_PGDN; break;
 138
 139                 case XK_KP_Home: key = K_KP_HOME; break;
 140                 case XK_Home:    key = K_HOME; break;
 141
 142                 case XK_KP_End:  key = K_KP_END; break;
 143                 case XK_End:     key = K_END; break;
 144
 145                 case XK_KP_Left: key = K_KP_LEFTARROW; break;
 146                 case XK_Left:    key = K_LEFTARROW; break;
 147
 148                 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
 149                 case XK_Right:  key = K_RIGHTARROW;             break;
 150
 151                 case XK_KP_Down: key = K_KP_DOWNARROW; break;
 152                 case XK_Down:    key = K_DOWNARROW; break;
 153
 154                 case XK_KP_Up:   key = K_KP_UPARROW; break;
 155                 case XK_Up:              key = K_UPARROW;        break;
 156
 157                 case XK_Escape: key = K_ESCAPE;         break;
 158
 159                 case XK_KP_Enter: key = K_KP_ENTER;     break;
 160                 case XK_Return: key = K_ENTER;           break;
 161
 162                 case XK_Tab:            key = K_TAB;                     break;
 163
 164                 case XK_F1:              key = K_F1;                            break;
 165
 166                 case XK_F2:              key = K_F2;                            break;
 167
 168                 case XK_F3:              key = K_F3;                            break;
 169
 170                 case XK_F4:              key = K_F4;                            break;
 171
 172                 case XK_F5:              key = K_F5;                            break;
 173
 174                 case XK_F6:              key = K_F6;                            break;
 175
 176                 case XK_F7:              key = K_F7;                            break;
 177
 178                 case XK_F8:              key = K_F8;                            break;
 179
 180                 case XK_F9:              key = K_F9;                            break;
 181
 182                 case XK_F10:            key = K_F10;                     break;
 183
 184                 case XK_F11:            key = K_F11;                     break;
 185
 186                 case XK_F12:            key = K_F12;                     break;
 187
 188                 case XK_BackSpace: key = K_BACKSPACE; break;
 189
 190                 case XK_KP_Delete: key = K_KP_DEL; break;
 191                 case XK_Delete: key = K_DEL; break;
 192
 193                 case XK_Pause:  key = K_PAUSE;           break;
 194
 195                 case XK_Shift_L:
 196                 case XK_Shift_R:        key = K_SHIFT;          break;
 197
 198                 case XK_Execute:
 199                 case XK_Control_L:
 200                 case XK_Control_R:      key = K_CTRL;            break;
 201
 202                 case XK_Alt_L:
 203                 case XK_Meta_L:
 204                 case XK_ISO_Level3_Shift:
 205                 case XK_Alt_R:
 206                 case XK_Meta_R: key = K_ALT;                    break;
 207
 208                 case XK_KP_Begin: key = K_KP_5; break;
 209
 210                 case XK_Insert:key = K_INS; break;
 211                 case XK_KP_Insert: key = K_KP_INS; break;
 212
 213                 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
 214                 case XK_KP_Add:  key = K_KP_PLUS; break;
 215                 case XK_KP_Subtract: key = K_KP_MINUS; break;
 216                 case XK_KP_Divide: key = K_KP_SLASH; break;
 217
 218                 case XK_section:        key = '~'; break;
 219
 220                 default:
 221                         if (keysym < 32)
 222                                 break;
 223
 224                         if (keysym >= 'A' && keysym <= 'Z')
 225                                 key = keysym - 'A' + 'a';
 226                         else
 227                                 key = keysym;
 228
 229                         break;
 230         }
 231
 232         return key;
 233 }
 234
 235 static Cursor CreateNullCursor(Display *display, Window root)
 236 {
 237         Pixmap cursormask;
 238         XGCValues xgc;
 239         GC gc;
 240         XColor dummycolour;
 241         Cursor cursor;
 242
 243         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 244         xgc.function = GXclear;
 245         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 246         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 247         dummycolour.pixel = 0;
 248         dummycolour.red = 0;
 249         dummycolour.flags = 04;
 250         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 251         XFreePixmap(display,cursormask);
 252         XFreeGC(display,gc);
 253         return cursor;
 254 }
 255
 256 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 257 {
 258         static int originalmouseparms_num;
 259         static int originalmouseparms_denom;
 260         static int originalmouseparms_threshold;
 261         static qboolean restore_spi;
 262
 263 #if !defined(__APPLE__) && !defined(SUNOS)
 264         qboolean usedgamouse;
 265 #endif
 266
 267         if (!vidx11_display || !win)
 268                 return;
 269
 270         if (relative)
 271                 fullscreengrab = true;
 272
 273         if (!mouse_avail)
 274                 fullscreengrab = relative = hidecursor = false;
 275
 276 #if !defined(__APPLE__) && !defined(SUNOS)
 277         usedgamouse = relative && vid_dgamouse.integer;
 278         if (!vid_x11_dgasupported)
 279                 usedgamouse = false;
 280         if (fullscreengrab && vid_usingmouse && (vid_usingdgamouse != usedgamouse))
 281                 VID_SetMouse(false, false, false); // ungrab first!
 282 #endif
 283
 284         if (vid_usingmousegrab != fullscreengrab)
 285         {
 286                 vid_usingmousegrab = fullscreengrab;
 287                 cl_ignoremousemoves = 2;
 288                 if (fullscreengrab)
 289                 {
 290                         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 291                         if (vid_grabkeyboard.integer || (vid_isfullscreen && !vid_isnetwmfullscreen))
 292                                 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 293                 }
 294                 else
 295                 {
 296                         XUngrabPointer(vidx11_display, CurrentTime);
 297                         XUngrabKeyboard(vidx11_display, CurrentTime);
 298                 }
 299         }
 300
 301         if (relative)
 302         {
 303                 if (!vid_usingmouse)
 304                 {
 305                         XWindowAttributes attribs_1;
 306                         XSetWindowAttributes attribs_2;
 307
 308                         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 309                         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 310                         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 311
 312 #if !defined(__APPLE__) && !defined(SUNOS)
 313                         vid_usingdgamouse = usedgamouse;
 314                         if (usedgamouse)
 315                         {
 316                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 317                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 318                         }
 319                         else
 320 #endif
 321                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 322
 323 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
 324 #if !defined(__APPLE__) && !defined(SUNOS)
 325                         if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 326 #else
 327                         if (!COM_CheckParm ("-noforcemparms"))
 328 #endif
 329                         {
 330                                 XGetPointerControl(vidx11_display, &originalmouseparms_num, &originalmouseparms_denom, &originalmouseparms_threshold);
 331                                 XChangePointerControl (vidx11_display, true, false, 1, 1, -1); // TODO maybe change threshold here, or remove this comment
 332                                 restore_spi = true;
 333                         }
 334                         else
 335                                 restore_spi = false;
 336
 337                         cl_ignoremousemoves = 2;
 338                         vid_usingmouse = true;
 339                 }
 340         }
 341         else
 342         {
 343                 if (vid_usingmouse)
 344                 {
 345 #if !defined(__APPLE__) && !defined(SUNOS)
 346                         if (vid_usingdgamouse)
 347                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 348                         vid_usingdgamouse = false;
 349 #endif
 350                         cl_ignoremousemoves = 2;
 351
 352                         if (restore_spi)
 353                                 XChangePointerControl (vidx11_display, true, true, originalmouseparms_num, originalmouseparms_denom, originalmouseparms_threshold);
 354                         restore_spi = false;
 355
 356                         vid_usingmouse = false;
 357                 }
 358         }
 359
 360         if (vid_usinghidecursor != hidecursor)
 361         {
 362                 vid_usinghidecursor = hidecursor;
 363                 if (hidecursor)
 364                         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 365                 else
 366                         XUndefineCursor(vidx11_display, win);
 367         }
 368 }
 369
 370 static keynum_t buttonremap[18] =
 371 {
 372         K_MOUSE1,
 373         K_MOUSE3,
 374         K_MOUSE2,
 375         K_MWHEELUP,
 376         K_MWHEELDOWN,
 377         K_MOUSE4,
 378         K_MOUSE5,
 379         K_MOUSE6,
 380         K_MOUSE7,
 381         K_MOUSE8,
 382         K_MOUSE9,
 383         K_MOUSE10,
 384         K_MOUSE11,
 385         K_MOUSE12,
 386         K_MOUSE13,
 387         K_MOUSE14,
 388         K_MOUSE15,
 389         K_MOUSE16,
 390 };
 391
 392 static void HandleEvents(void)
 393 {
 394         XEvent event;
 395         int key;
 396         char ascii;
 397         qboolean dowarp = false;
 398
 399         if (!vidx11_display)
 400                 return;
 401
 402         while (XPending(vidx11_display))
 403         {
 404                 XNextEvent(vidx11_display, &event);
 405
 406                 switch (event.type)
 407                 {
 408                 case KeyPress:
 409                         // key pressed
 410                         key = XLateKey (&event.xkey, &ascii);
 411                         Key_Event(key, ascii, true);
 412                         break;
 413
 414                 case KeyRelease:
 415                         // key released
 416                         key = XLateKey (&event.xkey, &ascii);
 417                         Key_Event(key, ascii, false);
 418                         break;
 419
 420                 case MotionNotify:
 421                         // mouse moved
 422                         if (vid_usingmouse)
 423                         {
 424 #if !defined(__APPLE__) && !defined(SUNOS)
 425                                 if (vid_usingdgamouse)
 426                                 {
 427                                         in_mouse_x += event.xmotion.x_root;
 428                                         in_mouse_y += event.xmotion.y_root;
 429                                 }
 430                                 else
 431 #endif
 432                                 {
 433                                         if (!event.xmotion.send_event)
 434                                         {
 435                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 436                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 437                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 438                                                 if (vid_stick_mouse.integer || abs(vid.width/2 - event.xmotion.x) > vid.width / 4 || abs(vid.height/2 - event.xmotion.y) > vid.height / 4)
 439                                                         dowarp = true;
 440                                         }
 441                                 }
 442                         }
 443                         in_windowmouse_x = event.xmotion.x;
 444                         in_windowmouse_y = event.xmotion.y;
 445                         break;
 446
 447                 case ButtonPress:
 448                         // mouse button pressed
 449                         if (event.xbutton.button <= 18)
 450                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 451                         else
 452                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 453                         break;
 454
 455                 case ButtonRelease:
 456                         // mouse button released
 457                         if (event.xbutton.button <= 18)
 458                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 459                         else
 460                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 461                         break;
 462
 463                 case CreateNotify:
 464                         // window created
 465                         win_x = event.xcreatewindow.x;
 466                         win_y = event.xcreatewindow.y;
 467                         break;
 468
 469                 case ConfigureNotify:
 470                         // window changed size/location
 471                         win_x = event.xconfigure.x;
 472                         win_y = event.xconfigure.y;
 473                         if(vid_resizable.integer < 2)
 474                         {
 475                                 vid.width = event.xconfigure.width;
 476                                 vid.height = event.xconfigure.height;
 477                         }
 478                         break;
 479                 case DestroyNotify:
 480                         // window has been destroyed
 481                         Sys_Quit(0);
 482                         break;
 483                 case ClientMessage:
 484                         // window manager messages
 485                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 486                                 Sys_Quit(0);
 487                         break;
 488                 case MapNotify:
 489                         if (vid_isfullscreen && !vid_isnetwmfullscreen)
 490                                 break;
 491                         // window restored
 492                         vid_hidden = false;
 493                         VID_RestoreSystemGamma();
 494
 495                         if(vid_isfullscreen)
 496                         {
 497                                 Atom net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
 498                                 Atom net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
 499
 500                                 // set our video mode
 501                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 502
 503                                 // reenter fullscreen
 504                                 XChangeProperty(vidx11_display, win, net_wm_state_atom, XA_ATOM, 32, PropModeReplace, (unsigned char *) &net_wm_state_fullscreen_atom, 1);
 505
 506                                 // Move the viewport to top left
 507                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 508
 509                                 // Move the window to the right place
 510                                 XMoveWindow(vidx11_display, win, 0, 0);
 511                                 XRaiseWindow(vidx11_display, win);
 512                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 513                                 XFlush(vidx11_display);
 514                         }
 515
 516                         break;
 517                 case UnmapNotify:
 518                         if (vid_isfullscreen && !vid_isnetwmfullscreen)
 519                                 break;
 520                         // window iconified/rolledup/whatever
 521                         vid_hidden = true;
 522                         VID_RestoreSystemGamma();
 523
 524                         if(vid_isfullscreen)
 525                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 526
 527                         break;
 528                 case FocusIn:
 529                         if (vid_isfullscreen && !vid_isnetwmfullscreen)
 530                                 break;
 531                         // window is now the input focus
 532                         vid_activewindow = true;
 533                         break;
 534                 case FocusOut:
 535                         if (vid_isfullscreen && !vid_isnetwmfullscreen)
 536                                 break;
 537                         // window is no longer the input focus
 538                         vid_activewindow = false;
 539                         VID_RestoreSystemGamma();
 540
 541                         if(vid_isfullscreen)
 542                                 XUnmapWindow(vidx11_display, win);
 543                                 // iconify netwm fullscreen window when it loses focus
 544                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 545
 546                         break;
 547                 case EnterNotify:
 548                         // mouse entered window
 549                         break;
 550                 case LeaveNotify:
 551                         // mouse left window
 552                         break;
 553                 }
 554         }
 555
 556         if (dowarp)
 557         {
 558                 /* move the mouse to the window center again */
 559                 // we'll catch the warp motion by its send_event flag, updating the
 560                 // stored mouse position without adding any delta motion
 561                 XEvent event;
 562                 event.type = MotionNotify;
 563                 event.xmotion.display = vidx11_display;
 564                 event.xmotion.window = win;
 565                 event.xmotion.x = vid.width / 2;
 566                 event.xmotion.y = vid.height / 2;
 567                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 568                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 569         }
 570 }
 571
 572 static void *prjobj = NULL;
 573
 574 static void GL_CloseLibrary(void)
 575 {
 576         if (prjobj)
 577                 dlclose(prjobj);
 578         prjobj = NULL;
 579         gl_driver[0] = 0;
 580         qglXGetProcAddressARB = NULL;
 581         gl_extensions = "";
 582         gl_platform = "";
 583         gl_platformextensions = "";
 584 }
 585
 586 static int GL_OpenLibrary(const char *name)
 587 {
 588         Con_Printf("Loading OpenGL driver %s\n", name);
 589         GL_CloseLibrary();
 590         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 591         {
 592                 Con_Printf("Unable to open symbol list for %s\n", name);
 593                 return false;
 594         }
 595         strlcpy(gl_driver, name, sizeof(gl_driver));
 596         return true;
 597 }
 598
 599 void *GL_GetProcAddress(const char *name)
 600 {
 601         void *p = NULL;
 602         if (qglXGetProcAddressARB != NULL)
 603                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 604         if (p == NULL)
 605                 p = (void *) dlsym(prjobj, name);
 606         return p;
 607 }
 608
 609 void VID_Shutdown(void)
 610 {
 611         if (!ctx || !vidx11_display)
 612                 return;
 613
 614         VID_SetMouse(false, false, false);
 615         VID_RestoreSystemGamma();
 616
 617         // FIXME: glXDestroyContext here?
 618         if (vid_isfullscreen)
 619                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 620         if (win)
 621                 XDestroyWindow(vidx11_display, win);
 622         XCloseDisplay(vidx11_display);
 623
 624         vid_hidden = true;
 625         vid_isfullscreen = false;
 626         vid_isnetwmfullscreen = false;
 627         vidx11_display = NULL;
 628         win = 0;
 629         ctx = NULL;
 630
 631         GL_CloseLibrary();
 632         Key_ClearStates ();
 633 }
 634
 635 void signal_handler(int sig)
 636 {
 637         Con_Printf("Received signal %d, exiting...\n", sig);
 638         VID_RestoreSystemGamma();
 639         Sys_Quit(1);
 640 }
 641
 642 void InitSig(void)
 643 {
 644         signal(SIGHUP, signal_handler);
 645         signal(SIGINT, signal_handler);
 646         signal(SIGQUIT, signal_handler);
 647         signal(SIGILL, signal_handler);
 648         signal(SIGTRAP, signal_handler);
 649         signal(SIGIOT, signal_handler);
 650         signal(SIGBUS, signal_handler);
 651         signal(SIGFPE, signal_handler);
 652         signal(SIGSEGV, signal_handler);
 653         signal(SIGTERM, signal_handler);
 654 }
 655
 656 void VID_Finish (void)
 657 {
 658         vid_usevsync = vid_vsync.integer && !cls.timedemo && gl_videosyncavailable;
 659         if (vid_usingvsync != vid_usevsync && gl_videosyncavailable)
 660         {
 661                 vid_usingvsync = vid_usevsync;
 662                 if (qglXSwapIntervalSGI (vid_usevsync))
 663                         Con_Print("glXSwapIntervalSGI didn't accept the vid_vsync change, it will take effect on next vid_restart (GLX_SGI_swap_control does not allow turning off vsync)\n");
 664         }
 665
 666         if (r_render.integer)
 667         {
 668                 CHECKGLERROR
 669                 if (r_speeds.integer || gl_finish.integer)
 670                 {
 671                         qglFinish();CHECKGLERROR
 672                 }
 673                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 674         }
 675
 676         if (vid_x11_hardwaregammasupported)
 677                 VID_UpdateGamma(false, vid_x11_gammarampsize);
 678 }
 679
 680 int VID_SetGamma(unsigned short *ramps, int rampsize)
 681 {
 682         return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 683 }
 684
 685 int VID_GetGamma(unsigned short *ramps, int rampsize)
 686 {
 687         return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 688 }
 689
 690 void VID_Init(void)
 691 {
 692 #if !defined(__APPLE__) && !defined(SUNOS)
 693         Cvar_RegisterVariable (&vid_dgamouse);
 694 #endif
 695         Cvar_RegisterVariable (&vid_netwmfullscreen);
 696         InitSig(); // trap evil signals
 697 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 698         if (COM_CheckParm ("-nomouse"))
 699                 mouse_avail = false;
 700 }
 701
 702 void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 703 {
 704         *attrib++ = GLX_RGBA;
 705         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
 706         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
 707         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
 708         *attrib++ = GLX_DOUBLEBUFFER;
 709         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
 710         // if stencil is enabled, ask for alpha too
 711         if (stencil)
 712         {
 713                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
 714                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
 715         }
 716         if (stereobuffer)
 717                 *attrib++ = GLX_STEREO;
 718         if (samples > 1)
 719         {
 720                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
 721                 *attrib++ = 1;
 722                 *attrib++ = GLX_SAMPLES_ARB;
 723                 *attrib++ = samples;
 724         }
 725         *attrib++ = None;
 726 }
 727
 728 int VID_InitMode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer, int samples)
 729 {
 730         int i;
 731         int attrib[32];
 732         XSetWindowAttributes attr;
 733         XClassHint *clshints;
 734         XWMHints *wmhints;
 735         XSizeHints *szhints;
 736         unsigned long mask;
 737         Window root;
 738         XVisualInfo *visinfo;
 739         int MajorVersion, MinorVersion;
 740         const char *drivername;
 741
 742 #if defined(__APPLE__) && defined(__MACH__)
 743         drivername = "/usr/X11R6/lib/libGL.1.dylib";
 744 #else
 745         drivername = "libGL.so.1";
 746 #endif
 747 // COMMANDLINEOPTION: Linux GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
 748 // COMMANDLINEOPTION: BSD GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
 749 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
 750         i = COM_CheckParm("-gl_driver");
 751         if (i && i < com_argc - 1)
 752                 drivername = com_argv[i + 1];
 753         if (!GL_OpenLibrary(drivername))
 754         {
 755                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
 756                 return false;
 757         }
 758
 759         if (!(vidx11_display = XOpenDisplay(NULL)))
 760         {
 761                 Con_Print("Couldn't open the X display\n");
 762                 return false;
 763         }
 764
 765         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
 766         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
 767
 768         vidx11_screen = DefaultScreen(vidx11_display);
 769         root = RootWindow(vidx11_display, vidx11_screen);
 770
 771         // Get video mode list
 772         MajorVersion = MinorVersion = 0;
 773         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
 774                 vidmode_ext = false;
 775         else
 776         {
 777                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 778                 vidmode_ext = true;
 779         }
 780
 781         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
 782          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
 783          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
 784          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
 785          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
 786          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
 787         {
 788                 Con_Printf("glX functions not found in %s\n", gl_driver);
 789                 return false;
 790         }
 791
 792         VID_BuildGLXAttrib(attrib, bpp == 32, stereobuffer, samples);
 793         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
 794         if (!visinfo)
 795         {
 796                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
 797                 return false;
 798         }
 799
 800         if (vidmode_ext)
 801         {
 802                 int best_fit, best_dist, dist, x, y;
 803
 804                 // Are we going fullscreen?  If so, let's change video mode
 805                 if (fullscreen)
 806                 {
 807                         XF86VidModeModeLine *current_vidmode;
 808                         XF86VidModeModeInfo **vidmodes;
 809                         int num_vidmodes;
 810
 811                         // This nice hack comes from the SDL source code
 812                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
 813                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
 814
 815                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
 816                         best_dist = 9999999;
 817                         best_fit = -1;
 818
 819                         for (i = 0; i < num_vidmodes; i++)
 820                         {
 821                                 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
 822                                         continue;
 823
 824                                 x = width - vidmodes[i]->hdisplay;
 825                                 y = height - vidmodes[i]->vdisplay;
 826                                 dist = (x * x) + (y * y);
 827                                 if (dist < best_dist)
 828                                 {
 829                                         best_dist = dist;
 830                                         best_fit = i;
 831                                 }
 832                         }
 833
 834                         if (best_fit != -1)
 835                         {
 836                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
 837                                 // to width/height =, so the window will take the full area of
 838                                 // the mode chosen
 839                                 width = vidmodes[best_fit]->hdisplay;
 840                                 height = vidmodes[best_fit]->vdisplay;
 841
 842                                 // change to the mode
 843                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
 844                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
 845                                 vid_isfullscreen = true;
 846
 847                                 // Move the viewport to top left
 848                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 849                         }
 850                         else
 851                                 fullscreen = 0;
 852
 853                         free(vidmodes);
 854                 }
 855         }
 856
 857         // LordHavoc: save the visual for use in gamma ramp settings later
 858         vidx11_visual = visinfo->visual;
 859
 860         /* window attributes */
 861         attr.background_pixel = 0;
 862         attr.border_pixel = 0;
 863         // LordHavoc: save the colormap for later, too
 864         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
 865         attr.event_mask = X_MASK;
 866         if (vid_isfullscreen)
 867         {
 868                 if(vid_isnetwmfullscreen)
 869                 {
 870                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
 871                         attr.backing_store = NotUseful;
 872                         attr.save_under = False;
 873                 }
 874                 else
 875                 {
 876                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
 877                         attr.override_redirect = True;
 878                         attr.backing_store = NotUseful;
 879                         attr.save_under = False;
 880                 }
 881         }
 882         else
 883                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 884
 885         win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
 886
 887         wmhints = XAllocWMHints();
 888         if(XpmCreatePixmapFromData(vidx11_display, win,
 889                 (gamemode == GAME_NEXUIZ) ? nexuiz_xpm : darkplaces_xpm,
 890                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
 891                 wmhints->flags |= IconPixmapHint | IconMaskHint;
 892
 893         clshints = XAllocClassHint();
 894         clshints->res_name = strdup(gamename);
 895         clshints->res_class = strdup("DarkPlaces");
 896
 897         szhints = XAllocSizeHints();
 898         if(vid_resizable.integer == 0)
 899         {
 900                 szhints->min_width = szhints->max_width = width;
 901                 szhints->min_height = szhints->max_height = height;
 902                 szhints->flags |= PMinSize | PMaxSize;
 903         }
 904
 905         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
 906         XFree(clshints);
 907         XFree(wmhints);
 908         XFree(szhints);
 909
 910         if(vid_isfullscreen && vid_netwmfullscreen.integer)
 911         {
 912                 Atom net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
 913                 Atom net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
 914                 XChangeProperty(vidx11_display, win, net_wm_state_atom, XA_ATOM, 32, PropModeReplace, (unsigned char *) &net_wm_state_fullscreen_atom, 1);
 915                 vid_isnetwmfullscreen = true;
 916         }
 917         else
 918                 vid_isnetwmfullscreen = false;
 919
 920         //XStoreName(vidx11_display, win, gamename);
 921         XMapWindow(vidx11_display, win);
 922
 923         // LordHavoc: making the close button on a window do the right thing
 924         // seems to involve this mess, sigh...
 925         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
 926         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
 927
 928         if (vid_isfullscreen)
 929         {
 930                 XMoveWindow(vidx11_display, win, 0, 0);
 931                 XRaiseWindow(vidx11_display, win);
 932                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 933                 XFlush(vidx11_display);
 934                 // Move the viewport to top left
 935                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 936         }
 937
 938         //XSync(vidx11_display, False);
 939
 940         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
 941         if (!ctx)
 942         {
 943                 Con_Printf ("glXCreateContext failed\n");
 944                 return false;
 945         }
 946
 947         if (!qglXMakeCurrent(vidx11_display, win, ctx))
 948         {
 949                 Con_Printf ("glXMakeCurrent failed\n");
 950                 return false;
 951         }
 952
 953         XSync(vidx11_display, False);
 954
 955         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
 956         {
 957                 Con_Printf ("glGetString not found in %s\n", gl_driver);
 958                 return false;
 959         }
 960
 961         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
 962         gl_platform = "GLX";
 963         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
 964
 965         gl_videosyncavailable = false;
 966
 967 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
 968 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
 969 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
 970         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
 971 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
 972 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
 973 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
 974         gl_videosyncavailable = GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
 975
 976         vid_usingmousegrab = false;
 977         vid_usingmouse = false;
 978         vid_usinghidecursor = false;
 979         vid_usingvsync = false;
 980         vid_hidden = false;
 981         vid_activewindow = true;
 982         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
 983 #if !defined(__APPLE__) && !defined(SUNOS)
 984         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
 985         if (!vid_x11_dgasupported)
 986                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
 987 #endif
 988         GL_Init();
 989         return true;
 990 }
 991
 992 void Sys_SendKeyEvents(void)
 993 {
 994         static qboolean sound_active = true;
 995
 996         // enable/disable sound on focus gain/loss
 997         if (!vid_hidden && (vid_activewindow || !snd_mutewhenidle.integer))
 998         {
 999                 if (!sound_active)
1000                 {
1001                         S_UnblockSound ();
1002                         sound_active = true;
1003                 }
1004         }
1005         else
1006         {
1007                 if (sound_active)
1008                 {
1009                         S_BlockSound ();
1010                         sound_active = false;
1011                 }
1012         }
1013
1014         HandleEvents();
1015 }
1016
1017 void IN_Move (void)
1018 {
1019 }