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 #include "dpsoftrast.h"
  32
  33 #include <X11/keysym.h>
  34 #include <X11/cursorfont.h>
  35 #include <X11/xpm.h>
  36
  37 #include <X11/extensions/XShm.h>
  38 #if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
  39 #include <X11/extensions/xf86dga.h>
  40 #endif
  41 #include <X11/extensions/xf86vmode.h>
  42
  43 #include <sys/ipc.h>
  44 #include <sys/shm.h>
  45 #include <X11/extensions/XShm.h>
  46
  47 // get the Uchar type
  48 #include "utf8lib.h"
  49 #include "image.h"
  50
  51 #include "nexuiz.xpm"
  52 #include "darkplaces.xpm"
  53
  54 // Tell startup code that we have a client
  55 int cl_available = true;
  56
  57 // note: if we used the XRandR extension we could support refresh rates
  58 qboolean vid_supportrefreshrate = false;
  59
  60 //GLX prototypes
  61 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  62 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  63 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
  64 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  65 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
  66 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
  67
  68 //GLX_ARB_get_proc_address
  69 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
  70
  71 static dllfunction_t getprocaddressfuncs[] =
  72 {
  73         {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
  74         {NULL, NULL}
  75 };
  76
  77 //GLX_SGI_swap_control
  78 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
  79
  80 static dllfunction_t swapcontrolfuncs[] =
  81 {
  82         {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
  83         {NULL, NULL}
  84 };
  85
  86 static Display *vidx11_display = NULL;
  87 static int vidx11_screen;
  88 static Window win, root;
  89 static GLXContext ctx = NULL;
  90 static GC vidx11_gc = NULL;
  91 static XImage *vidx11_ximage[2] = { NULL, NULL };
  92 static int vidx11_ximage_pos;
  93 static XShmSegmentInfo vidx11_shminfo[2];
  94 static int vidx11_shmevent = -1;
  95 static int vidx11_shmwait = 0; // number of frames outstanding
  96
  97 Atom wm_delete_window_atom;
  98 Atom net_wm_state_atom;
  99 Atom net_wm_state_hidden_atom;
 100 Atom net_wm_state_fullscreen_atom;
 101 Atom net_wm_icon;
 102 Atom cardinal;
 103
 104 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
 105 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
 106                     PointerMotionMask | ButtonMotionMask)
 107 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
 108                 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
 109                 LeaveWindowMask)
 110
 111
 112 static qboolean mouse_avail = true;
 113 static qboolean vid_usingmousegrab = false;
 114 static qboolean vid_usingmouse = false;
 115 static qboolean vid_usinghidecursor = false;
 116 static qboolean vid_usingvsync = false;
 117 static qboolean vid_usevsync = false;
 118 static qboolean vid_x11_hardwaregammasupported = false;
 119 static qboolean vid_x11_dgasupported = false;
 120 static int vid_x11_gammarampsize = 0;
 121
 122 #if !defined(__APPLE__) && !defined(SUNOS)
 123 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 124 static qboolean vid_usingdgamouse = false;
 125 #endif
 126 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"};
 127
 128 qboolean vidmode_ext = false;
 129
 130 static int win_x, win_y;
 131
 132 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 133 static qboolean vid_isfullscreen = false;
 134 static qboolean vid_isvidmodefullscreen = false;
 135 static qboolean vid_isnetwmfullscreen = false;
 136 static qboolean vid_isoverrideredirect = false;
 137
 138 static Visual *vidx11_visual;
 139 static Colormap vidx11_colormap;
 140
 141 /*-----------------------------------------------------------------------*/
 142 //
 143
 144 long keysym2ucs(KeySym keysym);
 145 void DP_Xutf8LookupString(XKeyEvent * ev,
 146                          Uchar *uch,
 147                          KeySym * keysym_return,
 148                          Status * status_return)
 149 {
 150         int rc;
 151         KeySym keysym;
 152         int codepoint;
 153         char buffer[64];
 154         int nbytes = sizeof(buffer);
 155
 156         rc = XLookupString(ev, buffer, nbytes, &keysym, NULL);
 157
 158         if (rc > 0) {
 159                 codepoint = buffer[0] & 0xFF;
 160         } else {
 161                 codepoint = keysym2ucs(keysym);
 162         }
 163
 164         if (codepoint < 0) {
 165                 if (keysym == None) {
 166                         *status_return = XLookupNone;
 167                 } else {
 168                         *status_return = XLookupKeySym;
 169                         *keysym_return = keysym;
 170                 }
 171                 *uch = 0;
 172                 return;
 173         }
 174
 175         *uch = codepoint;
 176
 177         if (keysym != None) {
 178                 *keysym_return = keysym;
 179                 *status_return = XLookupBoth;
 180         } else {
 181                 *status_return = XLookupChars;
 182         }
 183 }
 184 static int XLateKey(XKeyEvent *ev, Uchar *ascii)
 185 {
 186         int key = 0;
 187         //char buf[64];
 188         KeySym keysym, shifted;
 189         Status status;
 190
 191         keysym = XLookupKeysym (ev, 0);
 192         DP_Xutf8LookupString(ev, ascii, &shifted, &status);
 193
 194         switch(keysym)
 195         {
 196                 case XK_KP_Page_Up:      key = K_KP_PGUP; break;
 197                 case XK_Page_Up:         key = K_PGUP; break;
 198
 199                 case XK_KP_Page_Down: key = K_KP_PGDN; break;
 200                 case XK_Page_Down:       key = K_PGDN; break;
 201
 202                 case XK_KP_Home: key = K_KP_HOME; break;
 203                 case XK_Home:    key = K_HOME; break;
 204
 205                 case XK_KP_End:  key = K_KP_END; break;
 206                 case XK_End:     key = K_END; break;
 207
 208                 case XK_KP_Left: key = K_KP_LEFTARROW; break;
 209                 case XK_Left:    key = K_LEFTARROW; break;
 210
 211                 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
 212                 case XK_Right:  key = K_RIGHTARROW;             break;
 213
 214                 case XK_KP_Down: key = K_KP_DOWNARROW; break;
 215                 case XK_Down:    key = K_DOWNARROW; break;
 216
 217                 case XK_KP_Up:   key = K_KP_UPARROW; break;
 218                 case XK_Up:              key = K_UPARROW;        break;
 219
 220                 case XK_Escape: key = K_ESCAPE;         break;
 221
 222                 case XK_KP_Enter: key = K_KP_ENTER;     break;
 223                 case XK_Return: key = K_ENTER;           break;
 224
 225                 case XK_Tab:            key = K_TAB;                     break;
 226
 227                 case XK_F1:              key = K_F1;                            break;
 228
 229                 case XK_F2:              key = K_F2;                            break;
 230
 231                 case XK_F3:              key = K_F3;                            break;
 232
 233                 case XK_F4:              key = K_F4;                            break;
 234
 235                 case XK_F5:              key = K_F5;                            break;
 236
 237                 case XK_F6:              key = K_F6;                            break;
 238
 239                 case XK_F7:              key = K_F7;                            break;
 240
 241                 case XK_F8:              key = K_F8;                            break;
 242
 243                 case XK_F9:              key = K_F9;                            break;
 244
 245                 case XK_F10:            key = K_F10;                     break;
 246
 247                 case XK_F11:            key = K_F11;                     break;
 248
 249                 case XK_F12:            key = K_F12;                     break;
 250
 251                 case XK_BackSpace: key = K_BACKSPACE; break;
 252
 253                 case XK_KP_Delete: key = K_KP_DEL; break;
 254                 case XK_Delete: key = K_DEL; break;
 255
 256                 case XK_Pause:  key = K_PAUSE;           break;
 257
 258                 case XK_Shift_L:
 259                 case XK_Shift_R:        key = K_SHIFT;          break;
 260
 261                 case XK_Execute:
 262                 case XK_Control_L:
 263                 case XK_Control_R:      key = K_CTRL;            break;
 264
 265                 case XK_Alt_L:
 266                 case XK_Meta_L:
 267                 case XK_ISO_Level3_Shift:
 268                 case XK_Alt_R:
 269                 case XK_Meta_R: key = K_ALT;                    break;
 270
 271                 case XK_KP_Begin: key = K_KP_5; break;
 272
 273                 case XK_Insert:key = K_INS; break;
 274                 case XK_KP_Insert: key = K_KP_INS; break;
 275
 276                 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
 277                 case XK_KP_Add:  key = K_KP_PLUS; break;
 278                 case XK_KP_Subtract: key = K_KP_MINUS; break;
 279                 case XK_KP_Divide: key = K_KP_SLASH; break;
 280
 281                 case XK_section:        key = '~'; break;
 282
 283                 default:
 284                         if (keysym < 32)
 285                                 break;
 286
 287                         if (keysym >= 'A' && keysym <= 'Z')
 288                                 key = keysym - 'A' + 'a';
 289                         else
 290                                 key = keysym;
 291
 292                         break;
 293         }
 294
 295         return key;
 296 }
 297
 298 static Cursor CreateNullCursor(Display *display, Window root)
 299 {
 300         Pixmap cursormask;
 301         XGCValues xgc;
 302         GC gc;
 303         XColor dummycolour;
 304         Cursor cursor;
 305
 306         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 307         xgc.function = GXclear;
 308         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 309         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 310         dummycolour.pixel = 0;
 311         dummycolour.red = 0;
 312         dummycolour.flags = 04;
 313         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 314         XFreePixmap(display,cursormask);
 315         XFreeGC(display,gc);
 316         return cursor;
 317 }
 318
 319 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 320 {
 321         static int originalmouseparms_num;
 322         static int originalmouseparms_denom;
 323         static int originalmouseparms_threshold;
 324         static qboolean restore_spi;
 325
 326 #if !defined(__APPLE__) && !defined(SUNOS)
 327         qboolean usedgamouse;
 328 #endif
 329
 330         if (!vidx11_display || !win)
 331                 return;
 332
 333         if (relative)
 334                 fullscreengrab = true;
 335
 336         if (!mouse_avail)
 337                 fullscreengrab = relative = hidecursor = false;
 338
 339 #if !defined(__APPLE__) && !defined(SUNOS)
 340         usedgamouse = relative && vid_dgamouse.integer;
 341         if (!vid_x11_dgasupported)
 342                 usedgamouse = false;
 343         if (fullscreengrab && vid_usingmouse && (vid_usingdgamouse != usedgamouse))
 344                 VID_SetMouse(false, false, false); // ungrab first!
 345 #endif
 346
 347         if (vid_usingmousegrab != fullscreengrab)
 348         {
 349                 vid_usingmousegrab = fullscreengrab;
 350                 cl_ignoremousemoves = 2;
 351                 if (fullscreengrab)
 352                 {
 353                         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 354                         if (vid_grabkeyboard.integer || vid_isoverrideredirect)
 355                                 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 356                 }
 357                 else
 358                 {
 359                         XUngrabPointer(vidx11_display, CurrentTime);
 360                         XUngrabKeyboard(vidx11_display, CurrentTime);
 361                 }
 362         }
 363
 364         if (relative)
 365         {
 366                 if (!vid_usingmouse)
 367                 {
 368                         XWindowAttributes attribs_1;
 369                         XSetWindowAttributes attribs_2;
 370
 371                         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 372                         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 373                         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 374
 375 #if !defined(__APPLE__) && !defined(SUNOS)
 376                         vid_usingdgamouse = usedgamouse;
 377                         if (usedgamouse)
 378                         {
 379                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 380                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 381                         }
 382                         else
 383 #endif
 384                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 385
 386 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
 387 #if !defined(__APPLE__) && !defined(SUNOS)
 388                         if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 389 #else
 390                         if (!COM_CheckParm ("-noforcemparms"))
 391 #endif
 392                         {
 393                                 XGetPointerControl(vidx11_display, &originalmouseparms_num, &originalmouseparms_denom, &originalmouseparms_threshold);
 394                                 XChangePointerControl (vidx11_display, true, false, 1, 1, -1); // TODO maybe change threshold here, or remove this comment
 395                                 restore_spi = true;
 396                         }
 397                         else
 398                                 restore_spi = false;
 399
 400                         cl_ignoremousemoves = 2;
 401                         vid_usingmouse = true;
 402                 }
 403         }
 404         else
 405         {
 406                 if (vid_usingmouse)
 407                 {
 408 #if !defined(__APPLE__) && !defined(SUNOS)
 409                         if (vid_usingdgamouse)
 410                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 411                         vid_usingdgamouse = false;
 412 #endif
 413                         cl_ignoremousemoves = 2;
 414
 415                         if (restore_spi)
 416                                 XChangePointerControl (vidx11_display, true, true, originalmouseparms_num, originalmouseparms_denom, originalmouseparms_threshold);
 417                         restore_spi = false;
 418
 419                         vid_usingmouse = false;
 420                 }
 421         }
 422
 423         if (vid_usinghidecursor != hidecursor)
 424         {
 425                 vid_usinghidecursor = hidecursor;
 426                 if (hidecursor)
 427                         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 428                 else
 429                         XUndefineCursor(vidx11_display, win);
 430         }
 431 }
 432
 433 static keynum_t buttonremap[18] =
 434 {
 435         K_MOUSE1,
 436         K_MOUSE3,
 437         K_MOUSE2,
 438         K_MWHEELUP,
 439         K_MWHEELDOWN,
 440         K_MOUSE4,
 441         K_MOUSE5,
 442         K_MOUSE6,
 443         K_MOUSE7,
 444         K_MOUSE8,
 445         K_MOUSE9,
 446         K_MOUSE10,
 447         K_MOUSE11,
 448         K_MOUSE12,
 449         K_MOUSE13,
 450         K_MOUSE14,
 451         K_MOUSE15,
 452         K_MOUSE16,
 453 };
 454
 455 static qboolean BuildXImages(int w, int h)
 456 {
 457         int i;
 458         if(vidx11_shmevent >= 0)
 459         {
 460                 for(i = 0; i < 2; ++i)
 461                 {
 462                         vidx11_shminfo[i].shmid = -1;
 463                         vidx11_ximage[i] = XShmCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, NULL, &vidx11_shminfo[i], w, h);
 464                         if(!vidx11_ximage[i])
 465                         {
 466                                 Con_Printf("Failed to get an XImage segment\n");
 467                                 VID_Shutdown();
 468                                 return false;
 469                         }
 470                         vidx11_shminfo[i].shmid = shmget(IPC_PRIVATE, vidx11_ximage[i]->bytes_per_line * vidx11_ximage[i]->height, IPC_CREAT|0777);
 471                         if(vidx11_shminfo[i].shmid < 0)
 472                         {
 473                                 Con_Printf("Failed to get a shm segment\n");
 474                                 VID_Shutdown();
 475                                 return false;
 476                         }
 477                         vidx11_shminfo[i].shmaddr = vidx11_ximage[i]->data = shmat(vidx11_shminfo[i].shmid, NULL, 0);
 478                         if(!vidx11_shminfo[i].shmaddr)
 479                         {
 480                                 Con_Printf("Failed to get a shm segment addresst\n");
 481                                 VID_Shutdown();
 482                                 return false;
 483                         }
 484                         vidx11_shminfo[i].readOnly = True;
 485                         XShmAttach(vidx11_display, &vidx11_shminfo[i]);
 486                 }
 487         }
 488         else
 489         {
 490                 for(i = 0; i < 2; ++i)
 491                 {
 492                         char *p = calloc(4, w * h);
 493                         vidx11_shminfo[i].shmid = -1;
 494                         vidx11_ximage[i] = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)p, w, h, 8, 0);
 495                         if(!vidx11_ximage[i])
 496                         {
 497                                 Con_Printf("Failed to get an XImage segment\n");
 498                                 VID_Shutdown();
 499                                 return false;
 500                         }
 501                 }
 502         }
 503         return true;
 504 }
 505 static void DestroyXImages(void)
 506 {
 507         int i;
 508         for(i = 0; i < 2; ++i)
 509         {
 510                 if(vidx11_shminfo[i].shmid >= 0)
 511                 {
 512                         XShmDetach(vidx11_display, &vidx11_shminfo[i]);
 513                         XDestroyImage(vidx11_ximage[i]);
 514                         vidx11_ximage[i] = NULL;
 515                         shmdt(vidx11_shminfo[i].shmaddr);
 516                         shmctl(vidx11_shminfo[i].shmid, IPC_RMID, 0);
 517                         vidx11_shminfo[i].shmid = -1;
 518                 }
 519                 if(vidx11_ximage[i])
 520                         XDestroyImage(vidx11_ximage[i]);
 521                 vidx11_ximage[i] = 0;
 522         }
 523 }
 524
 525 static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 526 static void HandleEvents(void)
 527 {
 528         XEvent event;
 529         int key;
 530         Uchar unicode;
 531         qboolean dowarp = false;
 532
 533         if (!vidx11_display)
 534                 return;
 535
 536         in_mouse_x += in_mouse_x_save;
 537         in_mouse_y += in_mouse_y_save;
 538         in_mouse_x_save = 0;
 539         in_mouse_y_save = 0;
 540
 541         while (XPending(vidx11_display))
 542         {
 543                 XNextEvent(vidx11_display, &event);
 544
 545                 switch (event.type)
 546                 {
 547                 case KeyPress:
 548                         // key pressed
 549                         key = XLateKey (&event.xkey, &unicode);
 550                         Key_Event(key, unicode, true);
 551                         break;
 552
 553                 case KeyRelease:
 554                         // key released
 555                         key = XLateKey (&event.xkey, &unicode);
 556                         Key_Event(key, unicode, false);
 557                         break;
 558
 559                 case MotionNotify:
 560                         // mouse moved
 561                         if (vid_usingmouse)
 562                         {
 563 #if !defined(__APPLE__) && !defined(SUNOS)
 564                                 if (vid_usingdgamouse)
 565                                 {
 566                                         in_mouse_x += event.xmotion.x_root;
 567                                         in_mouse_y += event.xmotion.y_root;
 568                                 }
 569                                 else
 570 #endif
 571                                 {
 572                                         if (!event.xmotion.send_event)
 573                                         {
 574                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 575                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 576                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 577                                                 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)
 578                                                         dowarp = true;
 579                                         }
 580                                 }
 581                         }
 582                         in_windowmouse_x = event.xmotion.x;
 583                         in_windowmouse_y = event.xmotion.y;
 584                         break;
 585
 586                 case ButtonPress:
 587                         // mouse button pressed
 588                         if (event.xbutton.button <= 18)
 589                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 590                         else
 591                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 592                         break;
 593
 594                 case ButtonRelease:
 595                         // mouse button released
 596                         if (event.xbutton.button <= 18)
 597                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 598                         else
 599                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 600                         break;
 601
 602                 case CreateNotify:
 603                         // window created
 604                         win_x = event.xcreatewindow.x;
 605                         win_y = event.xcreatewindow.y;
 606                         break;
 607
 608                 case ConfigureNotify:
 609                         // window changed size/location
 610                         win_x = event.xconfigure.x;
 611                         win_y = event.xconfigure.y;
 612                         if((vid_resizable.integer < 2 || vid_isnetwmfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
 613                         {
 614                                 vid.width = event.xconfigure.width;
 615                                 vid.height = event.xconfigure.height;
 616                                 if(vid_isnetwmfullscreen)
 617                                         Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
 618                                 else
 619                                         Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 620
 621                                 DPSOFTRAST_Flush();
 622
 623                                 if(vid.softdepthpixels)
 624                                         free(vid.softdepthpixels);
 625
 626                                 DestroyXImages();
 627                                 XSync(vidx11_display, False);
 628                                 if(!BuildXImages(vid.width, vid.height))
 629                                         return;
 630                                 XSync(vidx11_display, False);
 631
 632                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 633                                 vid.softdepthpixels = (unsigned int *)calloc(4, vid.width * vid.height);
 634                         }
 635                         break;
 636                 case DestroyNotify:
 637                         // window has been destroyed
 638                         Sys_Quit(0);
 639                         break;
 640                 case ClientMessage:
 641                         // window manager messages
 642                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 643                                 Sys_Quit(0);
 644                         break;
 645                 case MapNotify:
 646                         if (vid_isoverrideredirect)
 647                                 break;
 648                         // window restored
 649                         vid_hidden = false;
 650                         VID_RestoreSystemGamma();
 651
 652                         if(vid_isvidmodefullscreen)
 653                         {
 654                                 // set our video mode
 655                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 656
 657                                 // Move the viewport to top left
 658                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 659                         }
 660
 661                         if(vid_isnetwmfullscreen)
 662                         {
 663                                 // make sure it's fullscreen
 664                                 XEvent event;
 665                                 event.type = ClientMessage;
 666                                 event.xclient.serial = 0;
 667                                 event.xclient.send_event = True;
 668                                 event.xclient.message_type = net_wm_state_atom;
 669                                 event.xclient.window = win;
 670                                 event.xclient.format = 32;
 671                                 event.xclient.data.l[0] = 1;
 672                                 event.xclient.data.l[1] = net_wm_state_fullscreen_atom;
 673                                 event.xclient.data.l[2] = 0;
 674                                 event.xclient.data.l[3] = 1;
 675                                 event.xclient.data.l[4] = 0;
 676                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 677                         }
 678
 679                         dowarp = true;
 680
 681                         break;
 682                 case UnmapNotify:
 683                         if (vid_isoverrideredirect)
 684                                 break;
 685                         // window iconified/rolledup/whatever
 686                         vid_hidden = true;
 687                         VID_RestoreSystemGamma();
 688
 689                         if(vid_isvidmodefullscreen)
 690                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 691
 692                         break;
 693                 case FocusIn:
 694                         if (vid_isoverrideredirect)
 695                                 break;
 696                         // window is now the input focus
 697                         vid_activewindow = true;
 698                         break;
 699                 case FocusOut:
 700                         if (vid_isoverrideredirect)
 701                                 break;
 702
 703                         if(vid_isnetwmfullscreen && event.xfocus.mode == NotifyNormal)
 704                         {
 705                                 // iconify netwm fullscreen window when it loses focus
 706                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 707                                 XEvent event;
 708                                 event.type = ClientMessage;
 709                                 event.xclient.serial = 0;
 710                                 event.xclient.send_event = True;
 711                                 event.xclient.message_type = net_wm_state_atom;
 712                                 event.xclient.window = win;
 713                                 event.xclient.format = 32;
 714                                 event.xclient.data.l[0] = 1;
 715                                 event.xclient.data.l[1] = net_wm_state_hidden_atom;
 716                                 event.xclient.data.l[2] = 0;
 717                                 event.xclient.data.l[3] = 1;
 718                                 event.xclient.data.l[4] = 0;
 719                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 720                         }
 721
 722                         // window is no longer the input focus
 723                         vid_activewindow = false;
 724                         VID_RestoreSystemGamma();
 725
 726                         break;
 727                 case EnterNotify:
 728                         // mouse entered window
 729                         break;
 730                 case LeaveNotify:
 731                         // mouse left window
 732                         break;
 733                 default:
 734                         if(vidx11_shmevent >= 0 && event.type == vidx11_shmevent)
 735                                 --vidx11_shmwait;
 736                         break;
 737                 }
 738         }
 739
 740         if (dowarp)
 741         {
 742                 /* move the mouse to the window center again */
 743                 // we'll catch the warp motion by its send_event flag, updating the
 744                 // stored mouse position without adding any delta motion
 745                 XEvent event;
 746                 event.type = MotionNotify;
 747                 event.xmotion.display = vidx11_display;
 748                 event.xmotion.window = win;
 749                 event.xmotion.x = vid.width / 2;
 750                 event.xmotion.y = vid.height / 2;
 751                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 752                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 753         }
 754 }
 755
 756 static void *prjobj = NULL;
 757
 758 static void GL_CloseLibrary(void)
 759 {
 760         if (prjobj)
 761                 dlclose(prjobj);
 762         prjobj = NULL;
 763         gl_driver[0] = 0;
 764         qglXGetProcAddressARB = NULL;
 765         gl_extensions = "";
 766         gl_platform = "";
 767         gl_platformextensions = "";
 768 }
 769
 770 static int GL_OpenLibrary(const char *name)
 771 {
 772         Con_Printf("Loading OpenGL driver %s\n", name);
 773         GL_CloseLibrary();
 774         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 775         {
 776                 Con_Printf("Unable to open symbol list for %s\n", name);
 777                 return false;
 778         }
 779         strlcpy(gl_driver, name, sizeof(gl_driver));
 780         return true;
 781 }
 782
 783 void *GL_GetProcAddress(const char *name)
 784 {
 785         void *p = NULL;
 786         if (qglXGetProcAddressARB != NULL)
 787                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 788         if (p == NULL)
 789                 p = (void *) dlsym(prjobj, name);
 790         return p;
 791 }
 792
 793 void VID_Shutdown(void)
 794 {
 795         if (!ctx || !vidx11_display)
 796                 return;
 797
 798         VID_SetMouse(false, false, false);
 799         VID_RestoreSystemGamma();
 800
 801         // FIXME: glXDestroyContext here?
 802         if (vid_isvidmodefullscreen)
 803                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 804
 805         if(vidx11_gc)
 806                 XFreeGC(vidx11_display, vidx11_gc);
 807         vidx11_gc = NULL;
 808
 809         DestroyXImages();
 810         vidx11_shmevent = -1;
 811         vid.softpixels = NULL;
 812
 813         if (vid.softdepthpixels)
 814                 free(vid.softdepthpixels);
 815
 816         if (win)
 817                 XDestroyWindow(vidx11_display, win);
 818         XCloseDisplay(vidx11_display);
 819
 820         vid_hidden = true;
 821         vid_isfullscreen = false;
 822         vid_isnetwmfullscreen = false;
 823         vid_isvidmodefullscreen = false;
 824         vid_isoverrideredirect = false;
 825         vidx11_display = NULL;
 826         win = 0;
 827         ctx = NULL;
 828
 829         GL_CloseLibrary();
 830         Key_ClearStates ();
 831 }
 832
 833 void signal_handler(int sig)
 834 {
 835         Con_Printf("Received signal %d, exiting...\n", sig);
 836         VID_RestoreSystemGamma();
 837         Sys_Quit(1);
 838 }
 839
 840 void InitSig(void)
 841 {
 842         signal(SIGHUP, signal_handler);
 843         signal(SIGINT, signal_handler);
 844         signal(SIGQUIT, signal_handler);
 845         signal(SIGILL, signal_handler);
 846         signal(SIGTRAP, signal_handler);
 847         signal(SIGIOT, signal_handler);
 848         signal(SIGBUS, signal_handler);
 849         signal(SIGFPE, signal_handler);
 850         signal(SIGSEGV, signal_handler);
 851         signal(SIGTERM, signal_handler);
 852 }
 853
 854 void VID_Finish (void)
 855 {
 856         vid_usevsync = vid_vsync.integer && !cls.timedemo && qglXSwapIntervalSGI;
 857         switch(vid.renderpath)
 858         {
 859                 case RENDERPATH_SOFT:
 860                         vidx11_ximage_pos = !vidx11_ximage_pos;
 861                         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 862                         DPSOFTRAST_SetRenderTargets(vid.width, vid.height, vid.softdepthpixels, vid.softpixels, NULL, NULL, NULL);
 863
 864                         if(vidx11_shmevent >= 0) {
 865                                 // save mouse motion so we can deal with it later
 866                                 in_mouse_x = 0;
 867                                 in_mouse_y = 0;
 868                                 while(vidx11_shmwait)
 869                                         HandleEvents();
 870                                 in_mouse_x_save += in_mouse_x;
 871                                 in_mouse_y_save += in_mouse_y;
 872                                 in_mouse_x = 0;
 873                                 in_mouse_y = 0;
 874
 875                                 ++vidx11_shmwait;
 876                                 XShmPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height, True);
 877                         } else {
 878                                 XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height);
 879                         }
 880                         break;
 881
 882                 case RENDERPATH_GL11:
 883                 case RENDERPATH_GL13:
 884                 case RENDERPATH_GL20:
 885                 case RENDERPATH_GLES2:
 886                         if (vid_usingvsync != vid_usevsync)
 887                         {
 888                                 vid_usingvsync = vid_usevsync;
 889                                 if (qglXSwapIntervalSGI (vid_usevsync))
 890                                         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");
 891                         }
 892
 893                         if (!vid_hidden)
 894                         {
 895                                 CHECKGLERROR
 896                                 if (r_speeds.integer == 2 || gl_finish.integer)
 897                                         GL_Finish();
 898                                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 899                         }
 900                         break;
 901
 902                 case RENDERPATH_D3D9:
 903                 case RENDERPATH_D3D10:
 904                 case RENDERPATH_D3D11:
 905                         break;
 906         }
 907
 908         if (vid_x11_hardwaregammasupported)
 909                 VID_UpdateGamma(false, vid_x11_gammarampsize);
 910 }
 911
 912 int VID_SetGamma(unsigned short *ramps, int rampsize)
 913 {
 914         return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 915 }
 916
 917 int VID_GetGamma(unsigned short *ramps, int rampsize)
 918 {
 919         return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 920 }
 921
 922 void VID_Init(void)
 923 {
 924 #if !defined(__APPLE__) && !defined(SUNOS)
 925         Cvar_RegisterVariable (&vid_dgamouse);
 926 #endif
 927         Cvar_RegisterVariable (&vid_netwmfullscreen);
 928         InitSig(); // trap evil signals
 929 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 930         if (COM_CheckParm ("-nomouse"))
 931                 mouse_avail = false;
 932         vidx11_shminfo[0].shmid = -1;
 933         vidx11_shminfo[1].shmid = -1;
 934 }
 935
 936 void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 937 {
 938         *attrib++ = GLX_RGBA;
 939         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
 940         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
 941         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
 942         *attrib++ = GLX_DOUBLEBUFFER;
 943         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
 944         // if stencil is enabled, ask for alpha too
 945         if (stencil)
 946         {
 947                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
 948                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
 949         }
 950         if (stereobuffer)
 951                 *attrib++ = GLX_STEREO;
 952         if (samples > 1)
 953         {
 954                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
 955                 *attrib++ = 1;
 956                 *attrib++ = GLX_SAMPLES_ARB;
 957                 *attrib++ = samples;
 958         }
 959         *attrib++ = None;
 960 }
 961
 962 qboolean VID_InitModeSoft(viddef_mode_t *mode)
 963 {
 964         int i, j;
 965         XSetWindowAttributes attr;
 966         XClassHint *clshints;
 967         XWMHints *wmhints;
 968         XSizeHints *szhints;
 969         unsigned long mask;
 970         int MajorVersion, MinorVersion;
 971         char *xpm;
 972         char **idata;
 973         unsigned char *data;
 974         XGCValues gcval;
 975         const char *dpyname;
 976
 977         vid_isfullscreen = false;
 978         vid_isnetwmfullscreen = false;
 979         vid_isvidmodefullscreen = false;
 980         vid_isoverrideredirect = false;
 981
 982         if (!(vidx11_display = XOpenDisplay(NULL)))
 983         {
 984                 Con_Print("Couldn't open the X display\n");
 985                 return false;
 986         }
 987         dpyname = XDisplayName(NULL);
 988
 989         // LordHavoc: making the close button on a window do the right thing
 990         // seems to involve this mess, sigh...
 991         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
 992         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
 993         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
 994         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
 995         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
 996         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
 997
 998         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
 999         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1000
1001         vidx11_screen = DefaultScreen(vidx11_display);
1002         root = RootWindow(vidx11_display, vidx11_screen);
1003
1004         // Get video mode list
1005         MajorVersion = MinorVersion = 0;
1006         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1007                 vidmode_ext = false;
1008         else
1009         {
1010                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1011                 vidmode_ext = true;
1012         }
1013
1014         if (mode->fullscreen)
1015         {
1016                 if(vid_netwmfullscreen.integer)
1017                 {
1018                         // TODO detect WM support
1019                         vid_isnetwmfullscreen = true;
1020                         vid_isfullscreen = true;
1021                         // width and height will be filled in later
1022                         Con_DPrintf("Using NetWM fullscreen mode\n");
1023                 }
1024
1025                 if(!vid_isfullscreen && vidmode_ext)
1026                 {
1027                         int best_fit, best_dist, dist, x, y;
1028
1029                         // Are we going fullscreen?  If so, let's change video mode
1030                         XF86VidModeModeLine *current_vidmode;
1031                         XF86VidModeModeInfo **vidmodes;
1032                         int num_vidmodes;
1033
1034                         // This nice hack comes from the SDL source code
1035                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1036                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1037
1038                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1039                         best_dist = 0;
1040                         best_fit = -1;
1041
1042                         for (i = 0; i < num_vidmodes; i++)
1043                         {
1044                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1045                                         continue;
1046
1047                                 x = mode->width - vidmodes[i]->hdisplay;
1048                                 y = mode->height - vidmodes[i]->vdisplay;
1049                                 dist = (x * x) + (y * y);
1050                                 if (best_fit == -1 || dist < best_dist)
1051                                 {
1052                                         best_dist = dist;
1053                                         best_fit = i;
1054                                 }
1055                         }
1056
1057                         if (best_fit != -1)
1058                         {
1059                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1060                                 // to width/height =, so the window will take the full area of
1061                                 // the mode chosen
1062                                 mode->width = vidmodes[best_fit]->hdisplay;
1063                                 mode->height = vidmodes[best_fit]->vdisplay;
1064
1065                                 // change to the mode
1066                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1067                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1068                                 vid_isvidmodefullscreen = true;
1069                                 vid_isfullscreen = true;
1070
1071                                 // Move the viewport to top left
1072                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1073                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1074                         }
1075
1076                         free(vidmodes);
1077                 }
1078
1079                 if(!vid_isfullscreen)
1080                 {
1081                         // sorry, no FS available
1082                         // use the full desktop resolution
1083                         vid_isfullscreen = true;
1084                         // width and height will be filled in later
1085                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1086                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1087                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1088                 }
1089         }
1090
1091         // LordHavoc: save the visual for use in gamma ramp settings later
1092         vidx11_visual = DefaultVisual(vidx11_display, vidx11_screen);
1093
1094         /* window attributes */
1095         attr.background_pixel = 0;
1096         attr.border_pixel = 0;
1097         // LordHavoc: save the colormap for later, too
1098         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, vidx11_visual, AllocNone);
1099         attr.event_mask = X_MASK;
1100
1101         if (mode->fullscreen)
1102         {
1103                 if(vid_isnetwmfullscreen)
1104                 {
1105                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1106                         attr.backing_store = NotUseful;
1107                         attr.save_under = False;
1108                 }
1109                 else
1110                 {
1111                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1112                         attr.override_redirect = True;
1113                         attr.backing_store = NotUseful;
1114                         attr.save_under = False;
1115                         vid_isoverrideredirect = true; // so it knows to grab
1116                 }
1117         }
1118         else
1119         {
1120                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1121         }
1122
1123         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, CopyFromParent, InputOutput, vidx11_visual, mask, &attr);
1124
1125         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1126         if(data)
1127         {
1128                 // use _NET_WM_ICON too
1129                 static long netwm_icon[MAX_NETWM_ICON];
1130                 int pos = 0;
1131                 int i = 1;
1132
1133                 while(data)
1134                 {
1135                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1136                         {
1137                                 netwm_icon[pos++] = image_width;
1138                                 netwm_icon[pos++] = image_height;
1139                                 for(i = 0; i < image_height; ++i)
1140                                         for(j = 0; j < image_width; ++j)
1141                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1142                         }
1143                         else
1144                         {
1145                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1146                         }
1147                         ++i;
1148                         Mem_Free(data);
1149                         data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
1150                 }
1151                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1152         }
1153
1154         // fallthrough for old window managers
1155         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1156         idata = NULL;
1157         if(xpm)
1158                 idata = XPM_DecodeString(xpm);
1159         if(!idata)
1160                 idata = ENGINE_ICON;
1161
1162         wmhints = XAllocWMHints();
1163         if(XpmCreatePixmapFromData(vidx11_display, win,
1164                 idata,
1165                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1166                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1167
1168         if(xpm)
1169                 Mem_Free(xpm);
1170
1171         clshints = XAllocClassHint();
1172         clshints->res_name = strdup(gamename);
1173         clshints->res_class = strdup("DarkPlaces");
1174
1175         szhints = XAllocSizeHints();
1176         if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
1177         {
1178                 szhints->min_width = szhints->max_width = mode->width;
1179                 szhints->min_height = szhints->max_height = mode->height;
1180                 szhints->flags |= PMinSize | PMaxSize;
1181         }
1182
1183         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1184         // strdup() allocates using malloc(), should be freed with free()
1185         free(clshints->res_name);
1186         free(clshints->res_class);
1187         XFree(clshints);
1188         XFree(wmhints);
1189         XFree(szhints);
1190
1191         //XStoreName(vidx11_display, win, gamename);
1192         XMapWindow(vidx11_display, win);
1193
1194         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1195
1196         if (vid_isoverrideredirect)
1197         {
1198                 XMoveWindow(vidx11_display, win, 0, 0);
1199                 XRaiseWindow(vidx11_display, win);
1200                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1201                 XFlush(vidx11_display);
1202         }
1203
1204         if(vid_isvidmodefullscreen)
1205         {
1206                 // Move the viewport to top left
1207                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1208         }
1209
1210         //XSync(vidx11_display, False);
1211
1212         // COMMANDLINEOPTION: Unix GLX: -noshm disables XShm extensioon
1213         if(dpyname && dpyname[0] == ':' && dpyname[1] && (dpyname[2] < '0' || dpyname[2] > '9') && !COM_CheckParm("-noshm") && XShmQueryExtension(vidx11_display))
1214         {
1215                 Con_Printf("Using XShm\n");
1216                 vidx11_shmevent = XShmGetEventBase(vidx11_display) + ShmCompletion;
1217         }
1218         else
1219         {
1220                 Con_Printf("Not using XShm\n");
1221                 vidx11_shmevent = -1;
1222         }
1223         BuildXImages(mode->width, mode->height);
1224
1225         vidx11_ximage_pos = 0;
1226         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
1227         vidx11_shmwait = 0;
1228         vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
1229
1230         memset(&gcval, 0, sizeof(gcval));
1231         vidx11_gc = XCreateGC(vidx11_display, win, 0, &gcval);
1232
1233         if (DPSOFTRAST_Init(mode->width, mode->height, vid_soft_threads.integer, vid_soft_interlace.integer, (unsigned int *)vid.softpixels, (unsigned int *)vid.softdepthpixels) < 0)
1234         {
1235                 Con_Printf("Failed to initialize software rasterizer\n");
1236                 VID_Shutdown();
1237                 return false;
1238         }
1239
1240         XSync(vidx11_display, False);
1241
1242         vid_usingmousegrab = false;
1243         vid_usingmouse = false;
1244         vid_usinghidecursor = false;
1245         vid_usingvsync = false;
1246         vid_hidden = false;
1247         vid_activewindow = true;
1248         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1249 #if !defined(__APPLE__) && !defined(SUNOS)
1250         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1251         if (!vid_x11_dgasupported)
1252                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1253 #endif
1254
1255         VID_Soft_SharedSetup();
1256
1257         return true;
1258 }
1259 qboolean VID_InitModeGL(viddef_mode_t *mode)
1260 {
1261         int i, j;
1262         int attrib[32];
1263         XSetWindowAttributes attr;
1264         XClassHint *clshints;
1265         XWMHints *wmhints;
1266         XSizeHints *szhints;
1267         unsigned long mask;
1268         XVisualInfo *visinfo;
1269         int MajorVersion, MinorVersion;
1270         const char *drivername;
1271         char *xpm;
1272         char **idata;
1273         unsigned char *data;
1274
1275         vid_isfullscreen = false;
1276         vid_isnetwmfullscreen = false;
1277         vid_isvidmodefullscreen = false;
1278         vid_isoverrideredirect = false;
1279
1280 #if defined(__APPLE__) && defined(__MACH__)
1281         drivername = "/usr/X11R6/lib/libGL.1.dylib";
1282 #else
1283         drivername = "libGL.so.1";
1284 #endif
1285 // 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
1286 // 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
1287 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
1288         i = COM_CheckParm("-gl_driver");
1289         if (i && i < com_argc - 1)
1290                 drivername = com_argv[i + 1];
1291         if (!GL_OpenLibrary(drivername))
1292         {
1293                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
1294                 return false;
1295         }
1296
1297         if (!(vidx11_display = XOpenDisplay(NULL)))
1298         {
1299                 Con_Print("Couldn't open the X display\n");
1300                 return false;
1301         }
1302
1303         // LordHavoc: making the close button on a window do the right thing
1304         // seems to involve this mess, sigh...
1305         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1306         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1307         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1308         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1309         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1310         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1311
1312         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1313         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1314
1315         vidx11_screen = DefaultScreen(vidx11_display);
1316         root = RootWindow(vidx11_display, vidx11_screen);
1317
1318         // Get video mode list
1319         MajorVersion = MinorVersion = 0;
1320         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1321                 vidmode_ext = false;
1322         else
1323         {
1324                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1325                 vidmode_ext = true;
1326         }
1327
1328         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
1329          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
1330          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
1331          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
1332          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
1333          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
1334         {
1335                 Con_Printf("glX functions not found in %s\n", gl_driver);
1336                 return false;
1337         }
1338
1339         VID_BuildGLXAttrib(attrib, mode->bitsperpixel == 32, mode->stereobuffer, mode->samples);
1340         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
1341         if (!visinfo)
1342         {
1343                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
1344                 return false;
1345         }
1346
1347         if (mode->fullscreen)
1348         {
1349                 if(vid_netwmfullscreen.integer)
1350                 {
1351                         // TODO detect WM support
1352                         vid_isnetwmfullscreen = true;
1353                         vid_isfullscreen = true;
1354                         // width and height will be filled in later
1355                         Con_DPrintf("Using NetWM fullscreen mode\n");
1356                 }
1357
1358                 if(!vid_isfullscreen && vidmode_ext)
1359                 {
1360                         int best_fit, best_dist, dist, x, y;
1361
1362                         // Are we going fullscreen?  If so, let's change video mode
1363                         XF86VidModeModeLine *current_vidmode;
1364                         XF86VidModeModeInfo **vidmodes;
1365                         int num_vidmodes;
1366
1367                         // This nice hack comes from the SDL source code
1368                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1369                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1370
1371                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1372                         best_dist = 0;
1373                         best_fit = -1;
1374
1375                         for (i = 0; i < num_vidmodes; i++)
1376                         {
1377                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1378                                         continue;
1379
1380                                 x = mode->width - vidmodes[i]->hdisplay;
1381                                 y = mode->height - vidmodes[i]->vdisplay;
1382                                 dist = (x * x) + (y * y);
1383                                 if (best_fit == -1 || dist < best_dist)
1384                                 {
1385                                         best_dist = dist;
1386                                         best_fit = i;
1387                                 }
1388                         }
1389
1390                         if (best_fit != -1)
1391                         {
1392                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1393                                 // to width/height =, so the window will take the full area of
1394                                 // the mode chosen
1395                                 mode->width = vidmodes[best_fit]->hdisplay;
1396                                 mode->height = vidmodes[best_fit]->vdisplay;
1397
1398                                 // change to the mode
1399                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1400                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1401                                 vid_isvidmodefullscreen = true;
1402                                 vid_isfullscreen = true;
1403
1404                                 // Move the viewport to top left
1405                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1406                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1407                         }
1408
1409                         free(vidmodes);
1410                 }
1411
1412                 if(!vid_isfullscreen)
1413                 {
1414                         // sorry, no FS available
1415                         // use the full desktop resolution
1416                         vid_isfullscreen = true;
1417                         // width and height will be filled in later
1418                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1419                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1420                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1421                 }
1422         }
1423
1424         // LordHavoc: save the visual for use in gamma ramp settings later
1425         vidx11_visual = visinfo->visual;
1426
1427         /* window attributes */
1428         attr.background_pixel = 0;
1429         attr.border_pixel = 0;
1430         // LordHavoc: save the colormap for later, too
1431         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
1432         attr.event_mask = X_MASK;
1433
1434         if (mode->fullscreen)
1435         {
1436                 if(vid_isnetwmfullscreen)
1437                 {
1438                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1439                         attr.backing_store = NotUseful;
1440                         attr.save_under = False;
1441                 }
1442                 else
1443                 {
1444                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1445                         attr.override_redirect = True;
1446                         attr.backing_store = NotUseful;
1447                         attr.save_under = False;
1448                         vid_isoverrideredirect = true; // so it knows to grab
1449                 }
1450         }
1451         else
1452         {
1453                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1454         }
1455
1456         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
1457
1458         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1459         if(data)
1460         {
1461                 // use _NET_WM_ICON too
1462                 static long netwm_icon[MAX_NETWM_ICON];
1463                 int pos = 0;
1464                 int i = 1;
1465
1466                 while(data)
1467                 {
1468                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1469                         {
1470                                 netwm_icon[pos++] = image_width;
1471                                 netwm_icon[pos++] = image_height;
1472                                 for(i = 0; i < image_height; ++i)
1473                                         for(j = 0; j < image_width; ++j)
1474                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1475                         }
1476                         else
1477                         {
1478                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1479                         }
1480                         ++i;
1481                         Mem_Free(data);
1482                         data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
1483                 }
1484                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1485         }
1486
1487         // fallthrough for old window managers
1488         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1489         idata = NULL;
1490         if(xpm)
1491                 idata = XPM_DecodeString(xpm);
1492         if(!idata)
1493                 idata = ENGINE_ICON;
1494
1495         wmhints = XAllocWMHints();
1496         if(XpmCreatePixmapFromData(vidx11_display, win,
1497                 idata,
1498                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1499                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1500
1501         if(xpm)
1502                 Mem_Free(xpm);
1503
1504         clshints = XAllocClassHint();
1505         clshints->res_name = strdup(gamename);
1506         clshints->res_class = strdup("DarkPlaces");
1507
1508         szhints = XAllocSizeHints();
1509         if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
1510         {
1511                 szhints->min_width = szhints->max_width = mode->width;
1512                 szhints->min_height = szhints->max_height = mode->height;
1513                 szhints->flags |= PMinSize | PMaxSize;
1514         }
1515
1516         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1517         // strdup() allocates using malloc(), should be freed with free()
1518         free(clshints->res_name);
1519         free(clshints->res_class);
1520         XFree(clshints);
1521         XFree(wmhints);
1522         XFree(szhints);
1523
1524         //XStoreName(vidx11_display, win, gamename);
1525         XMapWindow(vidx11_display, win);
1526
1527         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1528
1529         if (vid_isoverrideredirect)
1530         {
1531                 XMoveWindow(vidx11_display, win, 0, 0);
1532                 XRaiseWindow(vidx11_display, win);
1533                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1534                 XFlush(vidx11_display);
1535         }
1536
1537         if(vid_isvidmodefullscreen)
1538         {
1539                 // Move the viewport to top left
1540                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1541         }
1542
1543         //XSync(vidx11_display, False);
1544
1545         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
1546         XFree(visinfo); // glXChooseVisual man page says to use XFree to free visinfo
1547         if (!ctx)
1548         {
1549                 Con_Printf ("glXCreateContext failed\n");
1550                 return false;
1551         }
1552
1553         if (!qglXMakeCurrent(vidx11_display, win, ctx))
1554         {
1555                 Con_Printf ("glXMakeCurrent failed\n");
1556                 return false;
1557         }
1558
1559         XSync(vidx11_display, False);
1560
1561         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1562         {
1563                 Con_Printf ("glGetString not found in %s\n", gl_driver);
1564                 return false;
1565         }
1566
1567         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
1568         gl_platform = "GLX";
1569         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
1570
1571 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1572 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1573 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1574         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
1575 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
1576 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
1577 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
1578         GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
1579
1580         vid_usingmousegrab = false;
1581         vid_usingmouse = false;
1582         vid_usinghidecursor = false;
1583         vid_usingvsync = false;
1584         vid_hidden = false;
1585         vid_activewindow = true;
1586         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1587 #if !defined(__APPLE__) && !defined(SUNOS)
1588         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1589         if (!vid_x11_dgasupported)
1590                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1591 #endif
1592
1593         GL_Init();
1594         return true;
1595 }
1596
1597 qboolean VID_InitMode(viddef_mode_t *mode)
1598 {
1599 #ifdef SSE_POSSIBLE
1600         if (vid_soft.integer)
1601                 return VID_InitModeSoft(mode);
1602         else
1603 #endif
1604                 return VID_InitModeGL(mode);
1605 }
1606
1607 void Sys_SendKeyEvents(void)
1608 {
1609         static qboolean sound_active = true;
1610
1611         // enable/disable sound on focus gain/loss
1612         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
1613         {
1614                 if (!sound_active)
1615                 {
1616                         S_UnblockSound ();
1617                         sound_active = true;
1618                 }
1619         }
1620         else
1621         {
1622                 if (sound_active)
1623                 {
1624                         S_BlockSound ();
1625                         sound_active = false;
1626                 }
1627         }
1628
1629         HandleEvents();
1630 }
1631
1632 void IN_Move (void)
1633 {
1634 }
1635
1636 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1637 {
1638         if(vidmode_ext)
1639         {
1640                 int i, bpp;
1641                 size_t k;
1642                 XF86VidModeModeInfo **vidmodes;
1643                 int num_vidmodes;
1644
1645                 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1646                 k = 0;
1647                 for (i = 0; i < num_vidmodes; i++)
1648                 {
1649                         if(k >= maxcount)
1650                                 break;
1651                         // we don't get bpp info, so let's just assume all of 8, 15, 16, 24, 32 work
1652                         for(bpp = 8; bpp <= 32; bpp = ((bpp == 8) ? 15 : (bpp & 0xF8) + 8))
1653                         {
1654                                 if(k >= maxcount)
1655                                         break;
1656                                 modes[k].width = vidmodes[i]->hdisplay;
1657                                 modes[k].height = vidmodes[i]->vdisplay;
1658                                 modes[k].bpp = 8;
1659                                 if(vidmodes[i]->dotclock && vidmodes[i]->htotal && vidmodes[i]->vtotal)
1660                                         modes[k].refreshrate = vidmodes[i]->dotclock / vidmodes[i]->htotal / vidmodes[i]->vtotal;
1661                                 else
1662                                         modes[k].refreshrate = 60;
1663                                 modes[k].pixelheight_num = 1;
1664                                 modes[k].pixelheight_denom = 1; // xvidmode does not provide this
1665                                 ++k;
1666                         }
1667                 }
1668                 // manpage of XF86VidModeGetAllModeLines says it should be freed by the caller
1669                 XFree(vidmodes);
1670                 return k;
1671         }
1672         return 0; // FIXME implement this
1673 }