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 = 0;
  93 static XShmSegmentInfo vidx11_shminfo[2] = { -1, -1 };
  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(DefaultDepth(vidx11_display, vidx11_screen) != 32 && DefaultDepth(vidx11_display, vidx11_screen) != 24)
 459         {
 460                 Con_Printf("Sorry, we only support 24bpp and 32bpp modes\n");
 461                 VID_Shutdown();
 462                 return false;
 463         }
 464         // match to dpsoftrast's specs
 465         if(vidx11_visual->red_mask != 0x00FF0000)
 466         {
 467                 Con_Printf("Sorry, we only support BGR visuals\n");
 468                 VID_Shutdown();
 469                 return false;
 470         }
 471         if(vidx11_visual->green_mask != 0x0000FF00)
 472         {
 473                 Con_Printf("Sorry, we only support BGR visuals\n");
 474                 VID_Shutdown();
 475                 return false;
 476         }
 477         if(vidx11_visual->blue_mask != 0x000000FF)
 478         {
 479                 Con_Printf("Sorry, we only support BGR visuals\n");
 480                 VID_Shutdown();
 481                 return false;
 482         }
 483         if(vidx11_shmevent >= 0)
 484         {
 485                 for(i = 0; i < 2; ++i)
 486                 {
 487                         vidx11_shminfo[i].shmid = -1;
 488                         vidx11_ximage[i] = XShmCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, NULL, &vidx11_shminfo[i], w, h);
 489                         if(!vidx11_ximage[i])
 490                         {
 491                                 Con_Printf("Failed to get an XImage segment\n");
 492                                 VID_Shutdown();
 493                                 return false;
 494                         }
 495                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 496                         {
 497                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 498                                 VID_Shutdown();
 499                                 return false;
 500                         }
 501                         vidx11_shminfo[i].shmid = shmget(IPC_PRIVATE, vidx11_ximage[i]->bytes_per_line * vidx11_ximage[i]->height, IPC_CREAT|0777);
 502                         if(vidx11_shminfo[i].shmid < 0)
 503                         {
 504                                 Con_Printf("Failed to get a shm segment\n");
 505                                 VID_Shutdown();
 506                                 return false;
 507                         }
 508                         vidx11_shminfo[i].shmaddr = vidx11_ximage[i]->data = shmat(vidx11_shminfo[i].shmid, NULL, 0);
 509                         if(!vidx11_shminfo[i].shmaddr)
 510                         {
 511                                 Con_Printf("Failed to get a shm segment addresst\n");
 512                                 VID_Shutdown();
 513                                 return false;
 514                         }
 515                         vidx11_shminfo[i].readOnly = True;
 516                         XShmAttach(vidx11_display, &vidx11_shminfo[i]);
 517                 }
 518         }
 519         else
 520         {
 521                 for(i = 0; i < 1; ++i) // we only need one buffer if we don't use Xshm
 522                 {
 523                         char *p = calloc(4, w * h);
 524                         vidx11_shminfo[i].shmid = -1;
 525                         vidx11_ximage[i] = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)p, w, h, 8, 0);
 526                         if(!vidx11_ximage[i])
 527                         {
 528                                 Con_Printf("Failed to get an XImage segment\n");
 529                                 VID_Shutdown();
 530                                 return false;
 531                         }
 532                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 533                         {
 534                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 535                                 VID_Shutdown();
 536                                 return false;
 537                         }
 538                 }
 539         }
 540         return true;
 541 }
 542 static void DestroyXImages(void)
 543 {
 544         int i;
 545         for(i = 0; i < 2; ++i)
 546         {
 547                 if(vidx11_shminfo[i].shmid >= 0)
 548                 {
 549                         XShmDetach(vidx11_display, &vidx11_shminfo[i]);
 550                         XDestroyImage(vidx11_ximage[i]);
 551                         vidx11_ximage[i] = NULL;
 552                         shmdt(vidx11_shminfo[i].shmaddr);
 553                         shmctl(vidx11_shminfo[i].shmid, IPC_RMID, 0);
 554                         vidx11_shminfo[i].shmid = -1;
 555                 }
 556                 if(vidx11_ximage[i])
 557                         XDestroyImage(vidx11_ximage[i]);
 558                 vidx11_ximage[i] = 0;
 559         }
 560 }
 561
 562 static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 563 static void HandleEvents(void)
 564 {
 565         XEvent event;
 566         int key;
 567         Uchar unicode;
 568         qboolean dowarp = false;
 569
 570         if (!vidx11_display)
 571                 return;
 572
 573         in_mouse_x += in_mouse_x_save;
 574         in_mouse_y += in_mouse_y_save;
 575         in_mouse_x_save = 0;
 576         in_mouse_y_save = 0;
 577
 578         while (XPending(vidx11_display))
 579         {
 580                 XNextEvent(vidx11_display, &event);
 581
 582                 switch (event.type)
 583                 {
 584                 case KeyPress:
 585                         // key pressed
 586                         key = XLateKey (&event.xkey, &unicode);
 587                         Key_Event(key, unicode, true);
 588                         break;
 589
 590                 case KeyRelease:
 591                         // key released
 592                         key = XLateKey (&event.xkey, &unicode);
 593                         Key_Event(key, unicode, false);
 594                         break;
 595
 596                 case MotionNotify:
 597                         // mouse moved
 598                         if (vid_usingmouse)
 599                         {
 600 #if !defined(__APPLE__) && !defined(SUNOS)
 601                                 if (vid_usingdgamouse)
 602                                 {
 603                                         in_mouse_x += event.xmotion.x_root;
 604                                         in_mouse_y += event.xmotion.y_root;
 605                                 }
 606                                 else
 607 #endif
 608                                 {
 609                                         if (!event.xmotion.send_event)
 610                                         {
 611                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 612                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 613                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 614                                                 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)
 615                                                         dowarp = true;
 616                                         }
 617                                 }
 618                         }
 619                         in_windowmouse_x = event.xmotion.x;
 620                         in_windowmouse_y = event.xmotion.y;
 621                         break;
 622
 623                 case ButtonPress:
 624                         // mouse button pressed
 625                         if (event.xbutton.button <= 18)
 626                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 627                         else
 628                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 629                         break;
 630
 631                 case ButtonRelease:
 632                         // mouse button released
 633                         if (event.xbutton.button <= 18)
 634                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 635                         else
 636                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 637                         break;
 638
 639                 case CreateNotify:
 640                         // window created
 641                         win_x = event.xcreatewindow.x;
 642                         win_y = event.xcreatewindow.y;
 643                         break;
 644
 645                 case ConfigureNotify:
 646                         // window changed size/location
 647                         win_x = event.xconfigure.x;
 648                         win_y = event.xconfigure.y;
 649                         if((vid_resizable.integer < 2 || vid_isnetwmfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
 650                         {
 651                                 vid.width = event.xconfigure.width;
 652                                 vid.height = event.xconfigure.height;
 653                                 if(vid_isnetwmfullscreen)
 654                                         Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
 655                                 else
 656                                         Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 657
 658                                 DPSOFTRAST_Flush();
 659
 660                                 if(vid.softdepthpixels)
 661                                         free(vid.softdepthpixels);
 662
 663                                 DestroyXImages();
 664                                 XSync(vidx11_display, False);
 665                                 if(!BuildXImages(vid.width, vid.height))
 666                                         return;
 667                                 XSync(vidx11_display, False);
 668
 669                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 670                                 vid.softdepthpixels = (unsigned int *)calloc(4, vid.width * vid.height);
 671                         }
 672                         break;
 673                 case DestroyNotify:
 674                         // window has been destroyed
 675                         Sys_Quit(0);
 676                         break;
 677                 case ClientMessage:
 678                         // window manager messages
 679                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 680                                 Sys_Quit(0);
 681                         break;
 682                 case MapNotify:
 683                         if (vid_isoverrideredirect)
 684                                 break;
 685                         // window restored
 686                         vid_hidden = false;
 687                         VID_RestoreSystemGamma();
 688
 689                         if(vid_isvidmodefullscreen)
 690                         {
 691                                 // set our video mode
 692                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 693
 694                                 // Move the viewport to top left
 695                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 696                         }
 697
 698                         if(vid_isnetwmfullscreen)
 699                         {
 700                                 // make sure it's fullscreen
 701                                 XEvent event;
 702                                 event.type = ClientMessage;
 703                                 event.xclient.serial = 0;
 704                                 event.xclient.send_event = True;
 705                                 event.xclient.message_type = net_wm_state_atom;
 706                                 event.xclient.window = win;
 707                                 event.xclient.format = 32;
 708                                 event.xclient.data.l[0] = 1;
 709                                 event.xclient.data.l[1] = net_wm_state_fullscreen_atom;
 710                                 event.xclient.data.l[2] = 0;
 711                                 event.xclient.data.l[3] = 1;
 712                                 event.xclient.data.l[4] = 0;
 713                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 714                         }
 715
 716                         dowarp = true;
 717
 718                         break;
 719                 case UnmapNotify:
 720                         if (vid_isoverrideredirect)
 721                                 break;
 722                         // window iconified/rolledup/whatever
 723                         vid_hidden = true;
 724                         VID_RestoreSystemGamma();
 725
 726                         if(vid_isvidmodefullscreen)
 727                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 728
 729                         break;
 730                 case FocusIn:
 731                         if (vid_isoverrideredirect)
 732                                 break;
 733                         // window is now the input focus
 734                         vid_activewindow = true;
 735                         break;
 736                 case FocusOut:
 737                         if (vid_isoverrideredirect)
 738                                 break;
 739
 740                         if(vid_isnetwmfullscreen && event.xfocus.mode == NotifyNormal)
 741                         {
 742                                 // iconify netwm fullscreen window when it loses focus
 743                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 744                                 XEvent event;
 745                                 event.type = ClientMessage;
 746                                 event.xclient.serial = 0;
 747                                 event.xclient.send_event = True;
 748                                 event.xclient.message_type = net_wm_state_atom;
 749                                 event.xclient.window = win;
 750                                 event.xclient.format = 32;
 751                                 event.xclient.data.l[0] = 1;
 752                                 event.xclient.data.l[1] = net_wm_state_hidden_atom;
 753                                 event.xclient.data.l[2] = 0;
 754                                 event.xclient.data.l[3] = 1;
 755                                 event.xclient.data.l[4] = 0;
 756                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 757                         }
 758
 759                         // window is no longer the input focus
 760                         vid_activewindow = false;
 761                         VID_RestoreSystemGamma();
 762
 763                         break;
 764                 case EnterNotify:
 765                         // mouse entered window
 766                         break;
 767                 case LeaveNotify:
 768                         // mouse left window
 769                         break;
 770                 default:
 771                         if(vidx11_shmevent >= 0 && event.type == vidx11_shmevent)
 772                                 --vidx11_shmwait;
 773                         break;
 774                 }
 775         }
 776
 777         if (dowarp)
 778         {
 779                 /* move the mouse to the window center again */
 780                 // we'll catch the warp motion by its send_event flag, updating the
 781                 // stored mouse position without adding any delta motion
 782                 XEvent event;
 783                 event.type = MotionNotify;
 784                 event.xmotion.display = vidx11_display;
 785                 event.xmotion.window = win;
 786                 event.xmotion.x = vid.width / 2;
 787                 event.xmotion.y = vid.height / 2;
 788                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 789                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 790         }
 791 }
 792
 793 static void *prjobj = NULL;
 794
 795 static void GL_CloseLibrary(void)
 796 {
 797         if (prjobj)
 798                 dlclose(prjobj);
 799         prjobj = NULL;
 800         gl_driver[0] = 0;
 801         qglXGetProcAddressARB = NULL;
 802         gl_extensions = "";
 803         gl_platform = "";
 804         gl_platformextensions = "";
 805 }
 806
 807 static int GL_OpenLibrary(const char *name)
 808 {
 809         Con_Printf("Loading OpenGL driver %s\n", name);
 810         GL_CloseLibrary();
 811         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 812         {
 813                 Con_Printf("Unable to open symbol list for %s\n", name);
 814                 return false;
 815         }
 816         strlcpy(gl_driver, name, sizeof(gl_driver));
 817         return true;
 818 }
 819
 820 void *GL_GetProcAddress(const char *name)
 821 {
 822         void *p = NULL;
 823         if (qglXGetProcAddressARB != NULL)
 824                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 825         if (p == NULL)
 826                 p = (void *) dlsym(prjobj, name);
 827         return p;
 828 }
 829
 830 void VID_Shutdown(void)
 831 {
 832         if (!vidx11_display)
 833                 return;
 834
 835         VID_SetMouse(false, false, false);
 836         VID_RestoreSystemGamma();
 837
 838         // FIXME: glXDestroyContext here?
 839         if (vid_isvidmodefullscreen)
 840                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 841
 842         if(vidx11_gc)
 843                 XFreeGC(vidx11_display, vidx11_gc);
 844         vidx11_gc = NULL;
 845
 846         DestroyXImages();
 847         vidx11_shmevent = -1;
 848         vid.softpixels = NULL;
 849
 850         if (vid.softdepthpixels)
 851                 free(vid.softdepthpixels);
 852         vid.softdepthpixels = NULL;
 853
 854         if (win)
 855                 XDestroyWindow(vidx11_display, win);
 856         XCloseDisplay(vidx11_display);
 857
 858         vid_hidden = true;
 859         vid_isfullscreen = false;
 860         vid_isnetwmfullscreen = false;
 861         vid_isvidmodefullscreen = false;
 862         vid_isoverrideredirect = false;
 863         vidx11_display = NULL;
 864         win = 0;
 865         ctx = NULL;
 866
 867         GL_CloseLibrary();
 868         Key_ClearStates ();
 869 }
 870
 871 void signal_handler(int sig)
 872 {
 873         Con_Printf("Received signal %d, exiting...\n", sig);
 874         VID_RestoreSystemGamma();
 875         Sys_Quit(1);
 876 }
 877
 878 void InitSig(void)
 879 {
 880         signal(SIGHUP, signal_handler);
 881         signal(SIGINT, signal_handler);
 882         signal(SIGQUIT, signal_handler);
 883         signal(SIGILL, signal_handler);
 884         signal(SIGTRAP, signal_handler);
 885         signal(SIGIOT, signal_handler);
 886         signal(SIGBUS, signal_handler);
 887         signal(SIGFPE, signal_handler);
 888         signal(SIGSEGV, signal_handler);
 889         signal(SIGTERM, signal_handler);
 890 }
 891
 892 void VID_Finish (void)
 893 {
 894         vid_usevsync = vid_vsync.integer && !cls.timedemo && qglXSwapIntervalSGI;
 895         switch(vid.renderpath)
 896         {
 897                 case RENDERPATH_SOFT:
 898                         if(vidx11_shmevent >= 0) {
 899                                 vidx11_ximage_pos = !vidx11_ximage_pos;
 900                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 901                                 DPSOFTRAST_SetRenderTargets(vid.width, vid.height, vid.softdepthpixels, vid.softpixels, NULL, NULL, NULL);
 902
 903                                 // save mouse motion so we can deal with it later
 904                                 in_mouse_x = 0;
 905                                 in_mouse_y = 0;
 906                                 while(vidx11_shmwait)
 907                                         HandleEvents();
 908                                 in_mouse_x_save += in_mouse_x;
 909                                 in_mouse_y_save += in_mouse_y;
 910                                 in_mouse_x = 0;
 911                                 in_mouse_y = 0;
 912
 913                                 ++vidx11_shmwait;
 914                                 XShmPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height, True);
 915                         } else {
 916                                 // no buffer switching here, we just flush the renderer
 917                                 DPSOFTRAST_Finish();
 918                                 XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height);
 919                         }
 920                         break;
 921
 922                 case RENDERPATH_GL11:
 923                 case RENDERPATH_GL13:
 924                 case RENDERPATH_GL20:
 925                 case RENDERPATH_GLES2:
 926                         if (vid_usingvsync != vid_usevsync)
 927                         {
 928                                 vid_usingvsync = vid_usevsync;
 929                                 if (qglXSwapIntervalSGI (vid_usevsync))
 930                                         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");
 931                         }
 932
 933                         if (!vid_hidden)
 934                         {
 935                                 CHECKGLERROR
 936                                 if (r_speeds.integer == 2 || gl_finish.integer)
 937                                         GL_Finish();
 938                                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 939                         }
 940                         break;
 941
 942                 case RENDERPATH_D3D9:
 943                 case RENDERPATH_D3D10:
 944                 case RENDERPATH_D3D11:
 945                         break;
 946         }
 947
 948         if (vid_x11_hardwaregammasupported)
 949                 VID_UpdateGamma(false, vid_x11_gammarampsize);
 950 }
 951
 952 int VID_SetGamma(unsigned short *ramps, int rampsize)
 953 {
 954         return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 955 }
 956
 957 int VID_GetGamma(unsigned short *ramps, int rampsize)
 958 {
 959         return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 960 }
 961
 962 void VID_Init(void)
 963 {
 964 #if !defined(__APPLE__) && !defined(SUNOS)
 965         Cvar_RegisterVariable (&vid_dgamouse);
 966 #endif
 967         Cvar_RegisterVariable (&vid_netwmfullscreen);
 968         InitSig(); // trap evil signals
 969 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 970         if (COM_CheckParm ("-nomouse"))
 971                 mouse_avail = false;
 972         vidx11_shminfo[0].shmid = -1;
 973         vidx11_shminfo[1].shmid = -1;
 974 }
 975
 976 void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 977 {
 978         *attrib++ = GLX_RGBA;
 979         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
 980         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
 981         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
 982         *attrib++ = GLX_DOUBLEBUFFER;
 983         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
 984         // if stencil is enabled, ask for alpha too
 985         if (stencil)
 986         {
 987                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
 988                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
 989         }
 990         if (stereobuffer)
 991                 *attrib++ = GLX_STEREO;
 992         if (samples > 1)
 993         {
 994                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
 995                 *attrib++ = 1;
 996                 *attrib++ = GLX_SAMPLES_ARB;
 997                 *attrib++ = samples;
 998         }
 999         *attrib++ = None;
1000 }
1001
1002 qboolean VID_InitModeSoft(viddef_mode_t *mode)
1003 {
1004         int i, j;
1005         XSetWindowAttributes attr;
1006         XClassHint *clshints;
1007         XWMHints *wmhints;
1008         XSizeHints *szhints;
1009         unsigned long mask;
1010         int MajorVersion, MinorVersion;
1011         char *xpm;
1012         char **idata;
1013         unsigned char *data;
1014         XGCValues gcval;
1015         const char *dpyname;
1016
1017         vid_isfullscreen = false;
1018         vid_isnetwmfullscreen = false;
1019         vid_isvidmodefullscreen = false;
1020         vid_isoverrideredirect = false;
1021
1022         if (!(vidx11_display = XOpenDisplay(NULL)))
1023         {
1024                 Con_Print("Couldn't open the X display\n");
1025                 return false;
1026         }
1027         dpyname = XDisplayName(NULL);
1028
1029         // LordHavoc: making the close button on a window do the right thing
1030         // seems to involve this mess, sigh...
1031         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1032         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1033         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1034         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1035         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1036         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1037
1038         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1039         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1040
1041         vidx11_screen = DefaultScreen(vidx11_display);
1042         root = RootWindow(vidx11_display, vidx11_screen);
1043
1044         // Get video mode list
1045         MajorVersion = MinorVersion = 0;
1046         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1047                 vidmode_ext = false;
1048         else
1049         {
1050                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1051                 vidmode_ext = true;
1052         }
1053
1054         if (mode->fullscreen)
1055         {
1056                 if(vid_netwmfullscreen.integer)
1057                 {
1058                         // TODO detect WM support
1059                         vid_isnetwmfullscreen = true;
1060                         vid_isfullscreen = true;
1061                         // width and height will be filled in later
1062                         Con_DPrintf("Using NetWM fullscreen mode\n");
1063                 }
1064
1065                 if(!vid_isfullscreen && vidmode_ext)
1066                 {
1067                         int best_fit, best_dist, dist, x, y;
1068
1069                         // Are we going fullscreen?  If so, let's change video mode
1070                         XF86VidModeModeLine *current_vidmode;
1071                         XF86VidModeModeInfo **vidmodes;
1072                         int num_vidmodes;
1073
1074                         // This nice hack comes from the SDL source code
1075                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1076                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1077
1078                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1079                         best_dist = 0;
1080                         best_fit = -1;
1081
1082                         for (i = 0; i < num_vidmodes; i++)
1083                         {
1084                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1085                                         continue;
1086
1087                                 x = mode->width - vidmodes[i]->hdisplay;
1088                                 y = mode->height - vidmodes[i]->vdisplay;
1089                                 dist = (x * x) + (y * y);
1090                                 if (best_fit == -1 || dist < best_dist)
1091                                 {
1092                                         best_dist = dist;
1093                                         best_fit = i;
1094                                 }
1095                         }
1096
1097                         if (best_fit != -1)
1098                         {
1099                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1100                                 // to width/height =, so the window will take the full area of
1101                                 // the mode chosen
1102                                 mode->width = vidmodes[best_fit]->hdisplay;
1103                                 mode->height = vidmodes[best_fit]->vdisplay;
1104
1105                                 // change to the mode
1106                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1107                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1108                                 vid_isvidmodefullscreen = true;
1109                                 vid_isfullscreen = true;
1110
1111                                 // Move the viewport to top left
1112                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1113                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1114                         }
1115
1116                         free(vidmodes);
1117                 }
1118
1119                 if(!vid_isfullscreen)
1120                 {
1121                         // sorry, no FS available
1122                         // use the full desktop resolution
1123                         vid_isfullscreen = true;
1124                         // width and height will be filled in later
1125                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1126                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1127                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1128                 }
1129         }
1130
1131         // LordHavoc: save the visual for use in gamma ramp settings later
1132         vidx11_visual = DefaultVisual(vidx11_display, vidx11_screen);
1133
1134         /* window attributes */
1135         attr.background_pixel = 0;
1136         attr.border_pixel = 0;
1137         // LordHavoc: save the colormap for later, too
1138         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, vidx11_visual, AllocNone);
1139         attr.event_mask = X_MASK;
1140
1141         if (mode->fullscreen)
1142         {
1143                 if(vid_isnetwmfullscreen)
1144                 {
1145                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1146                         attr.backing_store = NotUseful;
1147                         attr.save_under = False;
1148                 }
1149                 else
1150                 {
1151                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1152                         attr.override_redirect = True;
1153                         attr.backing_store = NotUseful;
1154                         attr.save_under = False;
1155                         vid_isoverrideredirect = true; // so it knows to grab
1156                 }
1157         }
1158         else
1159         {
1160                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1161         }
1162
1163         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, CopyFromParent, InputOutput, vidx11_visual, mask, &attr);
1164
1165         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1166         if(data)
1167         {
1168                 // use _NET_WM_ICON too
1169                 static long netwm_icon[MAX_NETWM_ICON];
1170                 int pos = 0;
1171                 int i = 1;
1172
1173                 while(data)
1174                 {
1175                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1176                         {
1177                                 netwm_icon[pos++] = image_width;
1178                                 netwm_icon[pos++] = image_height;
1179                                 for(i = 0; i < image_height; ++i)
1180                                         for(j = 0; j < image_width; ++j)
1181                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1182                         }
1183                         else
1184                         {
1185                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1186                         }
1187                         ++i;
1188                         Mem_Free(data);
1189                         data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
1190                 }
1191                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1192         }
1193
1194         // fallthrough for old window managers
1195         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1196         idata = NULL;
1197         if(xpm)
1198                 idata = XPM_DecodeString(xpm);
1199         if(!idata)
1200                 idata = ENGINE_ICON;
1201
1202         wmhints = XAllocWMHints();
1203         if(XpmCreatePixmapFromData(vidx11_display, win,
1204                 idata,
1205                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1206                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1207
1208         if(xpm)
1209                 Mem_Free(xpm);
1210
1211         clshints = XAllocClassHint();
1212         clshints->res_name = strdup(gamename);
1213         clshints->res_class = strdup("DarkPlaces");
1214
1215         szhints = XAllocSizeHints();
1216         if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
1217         {
1218                 szhints->min_width = szhints->max_width = mode->width;
1219                 szhints->min_height = szhints->max_height = mode->height;
1220                 szhints->flags |= PMinSize | PMaxSize;
1221         }
1222
1223         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1224         // strdup() allocates using malloc(), should be freed with free()
1225         free(clshints->res_name);
1226         free(clshints->res_class);
1227         XFree(clshints);
1228         XFree(wmhints);
1229         XFree(szhints);
1230
1231         //XStoreName(vidx11_display, win, gamename);
1232         XMapWindow(vidx11_display, win);
1233
1234         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1235
1236         if (vid_isoverrideredirect)
1237         {
1238                 XMoveWindow(vidx11_display, win, 0, 0);
1239                 XRaiseWindow(vidx11_display, win);
1240                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1241                 XFlush(vidx11_display);
1242         }
1243
1244         if(vid_isvidmodefullscreen)
1245         {
1246                 // Move the viewport to top left
1247                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1248         }
1249
1250         //XSync(vidx11_display, False);
1251
1252         // COMMANDLINEOPTION: Unix GLX: -noshm disables XShm extensioon
1253         if(dpyname && dpyname[0] == ':' && dpyname[1] && (dpyname[2] < '0' || dpyname[2] > '9') && !COM_CheckParm("-noshm") && XShmQueryExtension(vidx11_display))
1254         {
1255                 Con_Printf("Using XShm\n");
1256                 vidx11_shmevent = XShmGetEventBase(vidx11_display) + ShmCompletion;
1257         }
1258         else
1259         {
1260                 Con_Printf("Not using XShm\n");
1261                 vidx11_shmevent = -1;
1262         }
1263         BuildXImages(mode->width, mode->height);
1264
1265         vidx11_ximage_pos = 0;
1266         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
1267         vidx11_shmwait = 0;
1268         vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
1269
1270         memset(&gcval, 0, sizeof(gcval));
1271         vidx11_gc = XCreateGC(vidx11_display, win, 0, &gcval);
1272
1273         if (DPSOFTRAST_Init(mode->width, mode->height, vid_soft_threads.integer, vid_soft_interlace.integer, (unsigned int *)vid.softpixels, (unsigned int *)vid.softdepthpixels) < 0)
1274         {
1275                 Con_Printf("Failed to initialize software rasterizer\n");
1276                 VID_Shutdown();
1277                 return false;
1278         }
1279
1280         XSync(vidx11_display, False);
1281
1282         vid_usingmousegrab = false;
1283         vid_usingmouse = false;
1284         vid_usinghidecursor = false;
1285         vid_usingvsync = false;
1286         vid_hidden = false;
1287         vid_activewindow = true;
1288         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1289 #if !defined(__APPLE__) && !defined(SUNOS)
1290         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1291         if (!vid_x11_dgasupported)
1292                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1293 #endif
1294
1295         VID_Soft_SharedSetup();
1296
1297         return true;
1298 }
1299 qboolean VID_InitModeGL(viddef_mode_t *mode)
1300 {
1301         int i, j;
1302         int attrib[32];
1303         XSetWindowAttributes attr;
1304         XClassHint *clshints;
1305         XWMHints *wmhints;
1306         XSizeHints *szhints;
1307         unsigned long mask;
1308         XVisualInfo *visinfo;
1309         int MajorVersion, MinorVersion;
1310         const char *drivername;
1311         char *xpm;
1312         char **idata;
1313         unsigned char *data;
1314
1315         vid_isfullscreen = false;
1316         vid_isnetwmfullscreen = false;
1317         vid_isvidmodefullscreen = false;
1318         vid_isoverrideredirect = false;
1319
1320 #if defined(__APPLE__) && defined(__MACH__)
1321         drivername = "/usr/X11R6/lib/libGL.1.dylib";
1322 #else
1323         drivername = "libGL.so.1";
1324 #endif
1325 // 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
1326 // 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
1327 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
1328         i = COM_CheckParm("-gl_driver");
1329         if (i && i < com_argc - 1)
1330                 drivername = com_argv[i + 1];
1331         if (!GL_OpenLibrary(drivername))
1332         {
1333                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
1334                 return false;
1335         }
1336
1337         if (!(vidx11_display = XOpenDisplay(NULL)))
1338         {
1339                 Con_Print("Couldn't open the X display\n");
1340                 return false;
1341         }
1342
1343         // LordHavoc: making the close button on a window do the right thing
1344         // seems to involve this mess, sigh...
1345         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1346         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1347         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1348         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1349         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1350         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1351
1352         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1353         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1354
1355         vidx11_screen = DefaultScreen(vidx11_display);
1356         root = RootWindow(vidx11_display, vidx11_screen);
1357
1358         // Get video mode list
1359         MajorVersion = MinorVersion = 0;
1360         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1361                 vidmode_ext = false;
1362         else
1363         {
1364                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1365                 vidmode_ext = true;
1366         }
1367
1368         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
1369          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
1370          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
1371          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
1372          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
1373          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
1374         {
1375                 Con_Printf("glX functions not found in %s\n", gl_driver);
1376                 return false;
1377         }
1378
1379         VID_BuildGLXAttrib(attrib, mode->bitsperpixel == 32, mode->stereobuffer, mode->samples);
1380         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
1381         if (!visinfo)
1382         {
1383                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
1384                 return false;
1385         }
1386
1387         if (mode->fullscreen)
1388         {
1389                 if(vid_netwmfullscreen.integer)
1390                 {
1391                         // TODO detect WM support
1392                         vid_isnetwmfullscreen = true;
1393                         vid_isfullscreen = true;
1394                         // width and height will be filled in later
1395                         Con_DPrintf("Using NetWM fullscreen mode\n");
1396                 }
1397
1398                 if(!vid_isfullscreen && vidmode_ext)
1399                 {
1400                         int best_fit, best_dist, dist, x, y;
1401
1402                         // Are we going fullscreen?  If so, let's change video mode
1403                         XF86VidModeModeLine *current_vidmode;
1404                         XF86VidModeModeInfo **vidmodes;
1405                         int num_vidmodes;
1406
1407                         // This nice hack comes from the SDL source code
1408                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1409                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1410
1411                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1412                         best_dist = 0;
1413                         best_fit = -1;
1414
1415                         for (i = 0; i < num_vidmodes; i++)
1416                         {
1417                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1418                                         continue;
1419
1420                                 x = mode->width - vidmodes[i]->hdisplay;
1421                                 y = mode->height - vidmodes[i]->vdisplay;
1422                                 dist = (x * x) + (y * y);
1423                                 if (best_fit == -1 || dist < best_dist)
1424                                 {
1425                                         best_dist = dist;
1426                                         best_fit = i;
1427                                 }
1428                         }
1429
1430                         if (best_fit != -1)
1431                         {
1432                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1433                                 // to width/height =, so the window will take the full area of
1434                                 // the mode chosen
1435                                 mode->width = vidmodes[best_fit]->hdisplay;
1436                                 mode->height = vidmodes[best_fit]->vdisplay;
1437
1438                                 // change to the mode
1439                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1440                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1441                                 vid_isvidmodefullscreen = true;
1442                                 vid_isfullscreen = true;
1443
1444                                 // Move the viewport to top left
1445                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1446                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1447                         }
1448
1449                         free(vidmodes);
1450                 }
1451
1452                 if(!vid_isfullscreen)
1453                 {
1454                         // sorry, no FS available
1455                         // use the full desktop resolution
1456                         vid_isfullscreen = true;
1457                         // width and height will be filled in later
1458                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1459                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1460                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1461                 }
1462         }
1463
1464         // LordHavoc: save the visual for use in gamma ramp settings later
1465         vidx11_visual = visinfo->visual;
1466
1467         /* window attributes */
1468         attr.background_pixel = 0;
1469         attr.border_pixel = 0;
1470         // LordHavoc: save the colormap for later, too
1471         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
1472         attr.event_mask = X_MASK;
1473
1474         if (mode->fullscreen)
1475         {
1476                 if(vid_isnetwmfullscreen)
1477                 {
1478                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1479                         attr.backing_store = NotUseful;
1480                         attr.save_under = False;
1481                 }
1482                 else
1483                 {
1484                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1485                         attr.override_redirect = True;
1486                         attr.backing_store = NotUseful;
1487                         attr.save_under = False;
1488                         vid_isoverrideredirect = true; // so it knows to grab
1489                 }
1490         }
1491         else
1492         {
1493                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1494         }
1495
1496         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
1497
1498         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1499         if(data)
1500         {
1501                 // use _NET_WM_ICON too
1502                 static long netwm_icon[MAX_NETWM_ICON];
1503                 int pos = 0;
1504                 int i = 1;
1505
1506                 while(data)
1507                 {
1508                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1509                         {
1510                                 netwm_icon[pos++] = image_width;
1511                                 netwm_icon[pos++] = image_height;
1512                                 for(i = 0; i < image_height; ++i)
1513                                         for(j = 0; j < image_width; ++j)
1514                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1515                         }
1516                         else
1517                         {
1518                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1519                         }
1520                         ++i;
1521                         Mem_Free(data);
1522                         data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
1523                 }
1524                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1525         }
1526
1527         // fallthrough for old window managers
1528         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1529         idata = NULL;
1530         if(xpm)
1531                 idata = XPM_DecodeString(xpm);
1532         if(!idata)
1533                 idata = ENGINE_ICON;
1534
1535         wmhints = XAllocWMHints();
1536         if(XpmCreatePixmapFromData(vidx11_display, win,
1537                 idata,
1538                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1539                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1540
1541         if(xpm)
1542                 Mem_Free(xpm);
1543
1544         clshints = XAllocClassHint();
1545         clshints->res_name = strdup(gamename);
1546         clshints->res_class = strdup("DarkPlaces");
1547
1548         szhints = XAllocSizeHints();
1549         if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
1550         {
1551                 szhints->min_width = szhints->max_width = mode->width;
1552                 szhints->min_height = szhints->max_height = mode->height;
1553                 szhints->flags |= PMinSize | PMaxSize;
1554         }
1555
1556         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1557         // strdup() allocates using malloc(), should be freed with free()
1558         free(clshints->res_name);
1559         free(clshints->res_class);
1560         XFree(clshints);
1561         XFree(wmhints);
1562         XFree(szhints);
1563
1564         //XStoreName(vidx11_display, win, gamename);
1565         XMapWindow(vidx11_display, win);
1566
1567         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1568
1569         if (vid_isoverrideredirect)
1570         {
1571                 XMoveWindow(vidx11_display, win, 0, 0);
1572                 XRaiseWindow(vidx11_display, win);
1573                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1574                 XFlush(vidx11_display);
1575         }
1576
1577         if(vid_isvidmodefullscreen)
1578         {
1579                 // Move the viewport to top left
1580                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1581         }
1582
1583         //XSync(vidx11_display, False);
1584
1585         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
1586         XFree(visinfo); // glXChooseVisual man page says to use XFree to free visinfo
1587         if (!ctx)
1588         {
1589                 Con_Printf ("glXCreateContext failed\n");
1590                 return false;
1591         }
1592
1593         if (!qglXMakeCurrent(vidx11_display, win, ctx))
1594         {
1595                 Con_Printf ("glXMakeCurrent failed\n");
1596                 return false;
1597         }
1598
1599         XSync(vidx11_display, False);
1600
1601         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1602         {
1603                 Con_Printf ("glGetString not found in %s\n", gl_driver);
1604                 return false;
1605         }
1606
1607         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
1608         gl_platform = "GLX";
1609         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
1610
1611 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1612 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1613 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1614         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
1615 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
1616 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
1617 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
1618         GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
1619
1620         vid_usingmousegrab = false;
1621         vid_usingmouse = false;
1622         vid_usinghidecursor = false;
1623         vid_usingvsync = false;
1624         vid_hidden = false;
1625         vid_activewindow = true;
1626         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1627 #if !defined(__APPLE__) && !defined(SUNOS)
1628         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1629         if (!vid_x11_dgasupported)
1630                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1631 #endif
1632
1633         GL_Init();
1634         return true;
1635 }
1636
1637 qboolean VID_InitMode(viddef_mode_t *mode)
1638 {
1639 #ifdef SSE_POSSIBLE
1640         if (vid_soft.integer)
1641                 return VID_InitModeSoft(mode);
1642         else
1643 #endif
1644                 return VID_InitModeGL(mode);
1645 }
1646
1647 void Sys_SendKeyEvents(void)
1648 {
1649         static qboolean sound_active = true;
1650
1651         // enable/disable sound on focus gain/loss
1652         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
1653         {
1654                 if (!sound_active)
1655                 {
1656                         S_UnblockSound ();
1657                         sound_active = true;
1658                 }
1659         }
1660         else
1661         {
1662                 if (sound_active)
1663                 {
1664                         S_BlockSound ();
1665                         sound_active = false;
1666                 }
1667         }
1668
1669         HandleEvents();
1670 }
1671
1672 void IN_Move (void)
1673 {
1674 }
1675
1676 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1677 {
1678         if(vidmode_ext)
1679         {
1680                 int i, bpp;
1681                 size_t k;
1682                 XF86VidModeModeInfo **vidmodes;
1683                 int num_vidmodes;
1684
1685                 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1686                 k = 0;
1687                 for (i = 0; i < num_vidmodes; i++)
1688                 {
1689                         if(k >= maxcount)
1690                                 break;
1691                         // we don't get bpp info, so let's just assume all of 8, 15, 16, 24, 32 work
1692                         for(bpp = 8; bpp <= 32; bpp = ((bpp == 8) ? 15 : (bpp & 0xF8) + 8))
1693                         {
1694                                 if(k >= maxcount)
1695                                         break;
1696                                 modes[k].width = vidmodes[i]->hdisplay;
1697                                 modes[k].height = vidmodes[i]->vdisplay;
1698                                 modes[k].bpp = 8;
1699                                 if(vidmodes[i]->dotclock && vidmodes[i]->htotal && vidmodes[i]->vtotal)
1700                                         modes[k].refreshrate = vidmodes[i]->dotclock / vidmodes[i]->htotal / vidmodes[i]->vtotal;
1701                                 else
1702                                         modes[k].refreshrate = 60;
1703                                 modes[k].pixelheight_num = 1;
1704                                 modes[k].pixelheight_denom = 1; // xvidmode does not provide this
1705                                 ++k;
1706                         }
1707                 }
1708                 // manpage of XF86VidModeGetAllModeLines says it should be freed by the caller
1709                 XFree(vidmodes);
1710                 return k;
1711         }
1712         return 0; // FIXME implement this
1713 }