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 #if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
  21 //#define USEDGA
  22 #endif
  23
  24 #include <signal.h>
  25
  26 #include <dlfcn.h>
  27
  28 #include <X11/Xlib.h>
  29 #include <X11/Xutil.h>
  30 #include <X11/Xatom.h>
  31 #include <X11/XKBlib.h> // TODO possibly ifdef this out on non-supporting systems... Solaris (as always)?
  32 #include <GL/glx.h>
  33
  34 #include "quakedef.h"
  35 #include "dpsoftrast.h"
  36
  37 #include <X11/keysym.h>
  38 #include <X11/cursorfont.h>
  39 #include <X11/xpm.h>
  40
  41 #include <X11/extensions/XShm.h>
  42 #ifdef USEDGA
  43 #include <X11/extensions/xf86dga.h>
  44 #endif
  45 #include <X11/extensions/xf86vmode.h>
  46
  47 #include <sys/ipc.h>
  48 #include <sys/shm.h>
  49 #include <X11/extensions/XShm.h>
  50
  51 // get the Uchar type
  52 #include "utf8lib.h"
  53 #include "image.h"
  54
  55 #include "nexuiz.xpm"
  56 #include "darkplaces.xpm"
  57
  58 // Tell startup code that we have a client
  59 int cl_available = true;
  60
  61 // note: if we used the XRandR extension we could support refresh rates
  62 qboolean vid_supportrefreshrate = false;
  63
  64 //GLX prototypes
  65 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
  66 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
  67 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
  68 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
  69 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
  70 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
  71
  72 //GLX_ARB_get_proc_address
  73 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
  74
  75 static dllfunction_t getprocaddressfuncs[] =
  76 {
  77         {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
  78         {NULL, NULL}
  79 };
  80
  81 //GLX_SGI_swap_control
  82 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
  83
  84 static dllfunction_t swapcontrolfuncs[] =
  85 {
  86         {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
  87         {NULL, NULL}
  88 };
  89
  90 static Display *vidx11_display = NULL;
  91 static int vidx11_screen;
  92 static Window win, root;
  93 static GLXContext ctx = NULL;
  94 static GC vidx11_gc = NULL;
  95 static XImage *vidx11_ximage[2] = { NULL, NULL };
  96 static int vidx11_ximage_pos = 0;
  97 static XShmSegmentInfo vidx11_shminfo[2];
  98 static int vidx11_shmevent = -1;
  99 static int vidx11_shmwait = 0; // number of frames outstanding
 100
 101 Atom wm_delete_window_atom;
 102 Atom net_wm_state_atom;
 103 Atom net_wm_state_hidden_atom;
 104 Atom net_wm_state_fullscreen_atom;
 105 Atom net_wm_icon;
 106 Atom cardinal;
 107
 108 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
 109 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
 110                     PointerMotionMask | ButtonMotionMask)
 111 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
 112                 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
 113                 LeaveWindowMask)
 114
 115
 116 static qboolean mouse_avail = true;
 117 static qboolean vid_usingmousegrab = false;
 118 static qboolean vid_usingmouse = false;
 119 static qboolean vid_usinghidecursor = false;
 120 static qboolean vid_usingvsync = false;
 121 static qboolean vid_usevsync = false;
 122 static qboolean vid_x11_hardwaregammasupported = false;
 123 #ifdef USEDGA
 124 static qboolean vid_x11_dgasupported = false;
 125 #endif
 126 static int vid_x11_gammarampsize = 0;
 127
 128 #ifdef USEDGA
 129 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 130 static qboolean vid_usingdgamouse = false;
 131 #endif
 132
 133 qboolean vidmode_ext = false;
 134
 135 static int win_x, win_y;
 136
 137 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 138 static qboolean vid_isfullscreen = false;
 139 static qboolean vid_isvidmodefullscreen = false;
 140 static qboolean vid_isdesktopfullscreen = false;
 141 static qboolean vid_isoverrideredirect = false;
 142
 143 static vid_mode_t desktop_mode;
 144 static Visual *vidx11_visual;
 145 static Colormap vidx11_colormap;
 146
 147 /*-----------------------------------------------------------------------*/
 148 //
 149
 150 extern long keysym2ucs(KeySym keysym); // LordHavoc: suppress warning just in this case, it's not worth having a header file for this...
 151 static void DP_Xutf8LookupString(XKeyEvent * ev,
 152                          Uchar *uch,
 153                          KeySym * keysym_return,
 154                          Status * status_return)
 155 {
 156         int rc;
 157         KeySym keysym;
 158         int codepoint;
 159         char buffer[64];
 160         int nbytes = sizeof(buffer);
 161
 162         rc = XLookupString(ev, buffer, nbytes, &keysym, NULL);
 163
 164         if (rc > 0) {
 165                 codepoint = buffer[0] & 0xFF;
 166         } else {
 167                 codepoint = keysym2ucs(keysym);
 168         }
 169
 170         if (codepoint < 0) {
 171                 if (keysym == None) {
 172                         *status_return = XLookupNone;
 173                 } else {
 174                         *status_return = XLookupKeySym;
 175                         *keysym_return = keysym;
 176                 }
 177                 *uch = 0;
 178                 return;
 179         }
 180
 181         *uch = codepoint;
 182
 183         if (keysym != None) {
 184                 *keysym_return = keysym;
 185                 *status_return = XLookupBoth;
 186         } else {
 187                 *status_return = XLookupChars;
 188         }
 189 }
 190 static int XLateKey(XKeyEvent *ev, Uchar *ascii)
 191 {
 192         int key = 0;
 193         //char buf[64];
 194         KeySym keysym, shifted;
 195         Status status;
 196
 197         keysym = XLookupKeysym (ev, 0);
 198         DP_Xutf8LookupString(ev, ascii, &shifted, &status);
 199
 200         switch(keysym)
 201         {
 202                 case XK_KP_Page_Up:      key = K_KP_PGUP; break;
 203                 case XK_Page_Up:         key = K_PGUP; break;
 204
 205                 case XK_KP_Page_Down: key = K_KP_PGDN; break;
 206                 case XK_Page_Down:       key = K_PGDN; break;
 207
 208                 case XK_KP_Home: key = K_KP_HOME; break;
 209                 case XK_Home:    key = K_HOME; break;
 210
 211                 case XK_KP_End:  key = K_KP_END; break;
 212                 case XK_End:     key = K_END; break;
 213
 214                 case XK_KP_Left: key = K_KP_LEFTARROW; break;
 215                 case XK_Left:    key = K_LEFTARROW; break;
 216
 217                 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
 218                 case XK_Right:  key = K_RIGHTARROW;             break;
 219
 220                 case XK_KP_Down: key = K_KP_DOWNARROW; break;
 221                 case XK_Down:    key = K_DOWNARROW; break;
 222
 223                 case XK_KP_Up:   key = K_KP_UPARROW; break;
 224                 case XK_Up:              key = K_UPARROW;        break;
 225
 226                 case XK_Escape: key = K_ESCAPE;         break;
 227
 228                 case XK_KP_Enter: key = K_KP_ENTER;     break;
 229                 case XK_Return: key = K_ENTER;           break;
 230
 231                 case XK_Tab:            key = K_TAB;                     break;
 232
 233                 case XK_F1:              key = K_F1;                            break;
 234
 235                 case XK_F2:              key = K_F2;                            break;
 236
 237                 case XK_F3:              key = K_F3;                            break;
 238
 239                 case XK_F4:              key = K_F4;                            break;
 240
 241                 case XK_F5:              key = K_F5;                            break;
 242
 243                 case XK_F6:              key = K_F6;                            break;
 244
 245                 case XK_F7:              key = K_F7;                            break;
 246
 247                 case XK_F8:              key = K_F8;                            break;
 248
 249                 case XK_F9:              key = K_F9;                            break;
 250
 251                 case XK_F10:            key = K_F10;                     break;
 252
 253                 case XK_F11:            key = K_F11;                     break;
 254
 255                 case XK_F12:            key = K_F12;                     break;
 256
 257                 case XK_BackSpace: key = K_BACKSPACE; break;
 258
 259                 case XK_KP_Delete: key = K_KP_DEL; break;
 260                 case XK_Delete: key = K_DEL; break;
 261
 262                 case XK_Pause:  key = K_PAUSE;           break;
 263
 264                 case XK_Shift_L:
 265                 case XK_Shift_R:        key = K_SHIFT;          break;
 266
 267                 case XK_Execute:
 268                 case XK_Control_L:
 269                 case XK_Control_R:      key = K_CTRL;            break;
 270
 271                 case XK_Alt_L:
 272                 case XK_Meta_L:
 273                 case XK_ISO_Level3_Shift:
 274                 case XK_Alt_R:
 275                 case XK_Meta_R: key = K_ALT;                    break;
 276
 277                 case XK_KP_Begin: key = K_KP_5; break;
 278
 279                 case XK_Insert:key = K_INS; break;
 280                 case XK_KP_Insert: key = K_KP_INS; break;
 281
 282                 case XK_KP_Multiply: key = K_KP_MULTIPLY; break;
 283                 case XK_KP_Add:  key = K_KP_PLUS; break;
 284                 case XK_KP_Subtract: key = K_KP_MINUS; break;
 285                 case XK_KP_Divide: key = K_KP_SLASH; break;
 286
 287                 case XK_Num_Lock: key = K_NUMLOCK; break;
 288                 case XK_Caps_Lock: key = K_CAPSLOCK; break;
 289                 case XK_Scroll_Lock: key = K_SCROLLOCK; break;
 290
 291                 case XK_asciicircum:    *ascii = key = '^'; break; // for some reason, XLookupString returns "" on this one for Grunt|2
 292
 293                 case XK_section:        *ascii = key = '~'; break;
 294
 295                 default:
 296                         if (keysym < 32)
 297                                 break;
 298
 299                         if (keysym >= 'A' && keysym <= 'Z')
 300                                 key = keysym - 'A' + 'a';
 301                         else
 302                                 key = keysym;
 303
 304                         break;
 305         }
 306
 307         return key;
 308 }
 309
 310 static Cursor CreateNullCursor(Display *display, Window root)
 311 {
 312         Pixmap cursormask;
 313         XGCValues xgc;
 314         GC gc;
 315         XColor dummycolour;
 316         Cursor cursor;
 317
 318         cursormask = XCreatePixmap(display, root, 1, 1, 1);
 319         xgc.function = GXclear;
 320         gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 321         XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 322         dummycolour.pixel = 0;
 323         dummycolour.red = 0;
 324         dummycolour.flags = 04;
 325         cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
 326         XFreePixmap(display,cursormask);
 327         XFreeGC(display,gc);
 328         return cursor;
 329 }
 330
 331 void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecursor)
 332 {
 333         static int originalmouseparms_num;
 334         static int originalmouseparms_denom;
 335         static int originalmouseparms_threshold;
 336         static qboolean restore_spi;
 337
 338 #ifdef USEDGA
 339         qboolean usedgamouse;
 340 #endif
 341
 342         if (!vidx11_display || !win)
 343                 return;
 344
 345         if (relative)
 346                 fullscreengrab = true;
 347
 348         if (!mouse_avail)
 349                 fullscreengrab = relative = hidecursor = false;
 350
 351 #ifdef USEDGA
 352         usedgamouse = relative && vid_dgamouse.integer;
 353         if (!vid_x11_dgasupported)
 354                 usedgamouse = false;
 355         if (fullscreengrab && vid_usingmouse && (vid_usingdgamouse != usedgamouse))
 356                 VID_SetMouse(false, false, false); // ungrab first!
 357 #endif
 358
 359         if (vid_usingmousegrab != fullscreengrab)
 360         {
 361                 vid_usingmousegrab = fullscreengrab;
 362                 cl_ignoremousemoves = 2;
 363                 if (fullscreengrab)
 364                 {
 365                         XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 366                         if (vid_grabkeyboard.integer || vid_isoverrideredirect)
 367                                 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 368                 }
 369                 else
 370                 {
 371                         XUngrabPointer(vidx11_display, CurrentTime);
 372                         XUngrabKeyboard(vidx11_display, CurrentTime);
 373                 }
 374         }
 375
 376         if (relative)
 377         {
 378                 if (!vid_usingmouse)
 379                 {
 380                         XWindowAttributes attribs_1;
 381                         XSetWindowAttributes attribs_2;
 382
 383                         XGetWindowAttributes(vidx11_display, win, &attribs_1);
 384                         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 385                         XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 386
 387 #ifdef USEDGA
 388                         vid_usingdgamouse = usedgamouse;
 389                         if (usedgamouse)
 390                         {
 391                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
 392                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
 393                         }
 394                         else
 395 #endif
 396                                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 397
 398 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
 399 #ifdef USEDGA
 400                         if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 401 #else
 402                         if (!COM_CheckParm ("-noforcemparms"))
 403 #endif
 404                         {
 405                                 XGetPointerControl(vidx11_display, &originalmouseparms_num, &originalmouseparms_denom, &originalmouseparms_threshold);
 406                                 XChangePointerControl (vidx11_display, true, false, 1, 1, -1); // TODO maybe change threshold here, or remove this comment
 407                                 restore_spi = true;
 408                         }
 409                         else
 410                                 restore_spi = false;
 411
 412                         cl_ignoremousemoves = 2;
 413                         vid_usingmouse = true;
 414                 }
 415         }
 416         else
 417         {
 418                 if (vid_usingmouse)
 419                 {
 420 #ifdef USEDGA
 421                         if (vid_usingdgamouse)
 422                                 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 423                         vid_usingdgamouse = false;
 424 #endif
 425                         cl_ignoremousemoves = 2;
 426
 427                         if (restore_spi)
 428                                 XChangePointerControl (vidx11_display, true, true, originalmouseparms_num, originalmouseparms_denom, originalmouseparms_threshold);
 429                         restore_spi = false;
 430
 431                         vid_usingmouse = false;
 432                 }
 433         }
 434
 435         if (vid_usinghidecursor != hidecursor)
 436         {
 437                 vid_usinghidecursor = hidecursor;
 438                 if (hidecursor)
 439                         XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 440                 else
 441                         XUndefineCursor(vidx11_display, win);
 442         }
 443 }
 444
 445 static keynum_t buttonremap[18] =
 446 {
 447         K_MOUSE1,
 448         K_MOUSE3,
 449         K_MOUSE2,
 450         K_MWHEELUP,
 451         K_MWHEELDOWN,
 452         K_MOUSE4,
 453         K_MOUSE5,
 454         K_MOUSE6,
 455         K_MOUSE7,
 456         K_MOUSE8,
 457         K_MOUSE9,
 458         K_MOUSE10,
 459         K_MOUSE11,
 460         K_MOUSE12,
 461         K_MOUSE13,
 462         K_MOUSE14,
 463         K_MOUSE15,
 464         K_MOUSE16,
 465 };
 466
 467 static qboolean BuildXImages(int w, int h)
 468 {
 469         int i;
 470         if(DefaultDepth(vidx11_display, vidx11_screen) != 32 && DefaultDepth(vidx11_display, vidx11_screen) != 24)
 471         {
 472                 Con_Printf("Sorry, we only support 24bpp and 32bpp modes\n");
 473                 VID_Shutdown();
 474                 return false;
 475         }
 476         // match to dpsoftrast's specs
 477         if(vidx11_visual->red_mask != 0x00FF0000)
 478         {
 479                 Con_Printf("Sorry, we only support BGR visuals\n");
 480                 VID_Shutdown();
 481                 return false;
 482         }
 483         if(vidx11_visual->green_mask != 0x0000FF00)
 484         {
 485                 Con_Printf("Sorry, we only support BGR visuals\n");
 486                 VID_Shutdown();
 487                 return false;
 488         }
 489         if(vidx11_visual->blue_mask != 0x000000FF)
 490         {
 491                 Con_Printf("Sorry, we only support BGR visuals\n");
 492                 VID_Shutdown();
 493                 return false;
 494         }
 495         if(vidx11_shmevent >= 0)
 496         {
 497                 for(i = 0; i < 2; ++i)
 498                 {
 499                         vidx11_shminfo[i].shmid = -1;
 500                         vidx11_ximage[i] = XShmCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, NULL, &vidx11_shminfo[i], w, h);
 501                         if(!vidx11_ximage[i])
 502                         {
 503                                 Con_Printf("Failed to get an XImage segment\n");
 504                                 VID_Shutdown();
 505                                 return false;
 506                         }
 507                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 508                         {
 509                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 510                                 VID_Shutdown();
 511                                 return false;
 512                         }
 513                         vidx11_shminfo[i].shmid = shmget(IPC_PRIVATE, vidx11_ximage[i]->bytes_per_line * vidx11_ximage[i]->height, IPC_CREAT|0777);
 514                         if(vidx11_shminfo[i].shmid < 0)
 515                         {
 516                                 Con_Printf("Failed to get a shm segment\n");
 517                                 VID_Shutdown();
 518                                 return false;
 519                         }
 520                         vidx11_shminfo[i].shmaddr = vidx11_ximage[i]->data = shmat(vidx11_shminfo[i].shmid, NULL, 0);
 521                         if(!vidx11_shminfo[i].shmaddr)
 522                         {
 523                                 Con_Printf("Failed to get a shm segment addresst\n");
 524                                 VID_Shutdown();
 525                                 return false;
 526                         }
 527                         vidx11_shminfo[i].readOnly = True;
 528                         XShmAttach(vidx11_display, &vidx11_shminfo[i]);
 529                 }
 530         }
 531         else
 532         {
 533                 for(i = 0; i < 1; ++i) // we only need one buffer if we don't use Xshm
 534                 {
 535                         char *p = calloc(4, w * h);
 536                         vidx11_shminfo[i].shmid = -1;
 537                         vidx11_ximage[i] = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)p, w, h, 8, 0);
 538                         if(!vidx11_ximage[i])
 539                         {
 540                                 Con_Printf("Failed to get an XImage segment\n");
 541                                 VID_Shutdown();
 542                                 return false;
 543                         }
 544                         if(vidx11_ximage[i]->bytes_per_line != w * 4)
 545                         {
 546                                 Con_Printf("Sorry, we only support linear pixel layout\n");
 547                                 VID_Shutdown();
 548                                 return false;
 549                         }
 550                 }
 551         }
 552         return true;
 553 }
 554 static void DestroyXImages(void)
 555 {
 556         int i;
 557         for(i = 0; i < 2; ++i)
 558         {
 559                 if(vidx11_shminfo[i].shmid >= 0)
 560                 {
 561                         XShmDetach(vidx11_display, &vidx11_shminfo[i]);
 562                         XDestroyImage(vidx11_ximage[i]);
 563                         vidx11_ximage[i] = NULL;
 564                         shmdt(vidx11_shminfo[i].shmaddr);
 565                         shmctl(vidx11_shminfo[i].shmid, IPC_RMID, 0);
 566                         vidx11_shminfo[i].shmid = -1;
 567                 }
 568                 if(vidx11_ximage[i])
 569                         XDestroyImage(vidx11_ximage[i]);
 570                 vidx11_ximage[i] = 0;
 571         }
 572 }
 573
 574 static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 575 static void HandleEvents(void)
 576 {
 577         XEvent event;
 578         int key;
 579         Uchar unicode;
 580         qboolean dowarp = false;
 581
 582         if (!vidx11_display)
 583                 return;
 584
 585         in_mouse_x += in_mouse_x_save;
 586         in_mouse_y += in_mouse_y_save;
 587         in_mouse_x_save = 0;
 588         in_mouse_y_save = 0;
 589
 590         while (XPending(vidx11_display))
 591         {
 592                 XNextEvent(vidx11_display, &event);
 593
 594                 switch (event.type)
 595                 {
 596                 case KeyPress:
 597                         // key pressed
 598                         key = XLateKey (&event.xkey, &unicode);
 599                         Key_Event(key, unicode, true);
 600                         break;
 601
 602                 case KeyRelease:
 603                         // key released
 604                         key = XLateKey (&event.xkey, &unicode);
 605                         Key_Event(key, unicode, false);
 606                         break;
 607
 608                 case MotionNotify:
 609                         // mouse moved
 610                         if (vid_usingmouse)
 611                         {
 612 #ifdef USEDGA
 613                                 if (vid_usingdgamouse)
 614                                 {
 615                                         in_mouse_x += event.xmotion.x_root;
 616                                         in_mouse_y += event.xmotion.y_root;
 617                                 }
 618                                 else
 619 #endif
 620                                 {
 621                                         if (!event.xmotion.send_event)
 622                                         {
 623                                                 in_mouse_x += event.xmotion.x - in_windowmouse_x;
 624                                                 in_mouse_y += event.xmotion.y - in_windowmouse_y;
 625                                                 //if (abs(vid.width/2 - event.xmotion.x) + abs(vid.height/2 - event.xmotion.y))
 626                                                 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)
 627                                                         dowarp = true;
 628                                         }
 629                                 }
 630                         }
 631                         in_windowmouse_x = event.xmotion.x;
 632                         in_windowmouse_y = event.xmotion.y;
 633                         break;
 634
 635                 case ButtonPress:
 636                         // mouse button pressed
 637                         if (event.xbutton.button <= 18)
 638                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, true);
 639                         else
 640                                 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-18 expected\n", event.xbutton.button);
 641                         break;
 642
 643                 case ButtonRelease:
 644                         // mouse button released
 645                         if (event.xbutton.button <= 18)
 646                                 Key_Event(buttonremap[event.xbutton.button - 1], 0, false);
 647                         else
 648                                 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-18 expected\n", event.xbutton.button);
 649                         break;
 650
 651                 case CreateNotify:
 652                         // window created
 653                         win_x = event.xcreatewindow.x;
 654                         win_y = event.xcreatewindow.y;
 655                         break;
 656
 657                 case ConfigureNotify:
 658                         // window changed size/location
 659                         win_x = event.xconfigure.x;
 660                         win_y = event.xconfigure.y;
 661                         // HACK on X11, we just request fullscreen mode, but
 662                         // cannot guess what the window manager will do for us
 663                         // exactly. That is why we read back the resolution we
 664                         // actually got here.
 665                         if(vid_isdesktopfullscreen)
 666                         {
 667                                 desktop_mode.width = event.xconfigure.width;
 668                                 desktop_mode.height = event.xconfigure.height;
 669                         }
 670                         if((vid_resizable.integer < 2 || vid_isdesktopfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
 671                         {
 672                                 vid.width = event.xconfigure.width;
 673                                 vid.height = event.xconfigure.height;
 674                                 if(vid_isdesktopfullscreen)
 675                                         Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
 676                                 else
 677                                         Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 678
 679                                 if(vid.renderpath == RENDERPATH_SOFT)
 680                                 {
 681                                         DPSOFTRAST_Flush();
 682                                         if(vid.softdepthpixels)
 683                                                 free(vid.softdepthpixels);
 684                                         DestroyXImages();
 685                                         XSync(vidx11_display, False);
 686                                         if(!BuildXImages(vid.width, vid.height))
 687                                                 return;
 688                                         XSync(vidx11_display, False);
 689                                         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 690                                         vid.softdepthpixels = (unsigned int *)calloc(4, vid.width * vid.height);
 691                                 }
 692                         }
 693                         break;
 694                 case DestroyNotify:
 695                         // window has been destroyed
 696                         Sys_Quit(0);
 697                         break;
 698                 case ClientMessage:
 699                         // window manager messages
 700                         if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
 701                                 Sys_Quit(0);
 702                         break;
 703                 case MapNotify:
 704                         if (vid_isoverrideredirect)
 705                                 break;
 706                         // window restored
 707                         vid_hidden = false;
 708                         VID_RestoreSystemGamma();
 709
 710                         if(vid_isvidmodefullscreen)
 711                         {
 712                                 // set our video mode
 713                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &game_vidmode);
 714
 715                                 // Move the viewport to top left
 716                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
 717                         }
 718
 719                         if(vid_isdesktopfullscreen)
 720                         {
 721                                 // make sure it's fullscreen
 722                                 XEvent event;
 723                                 event.type = ClientMessage;
 724                                 event.xclient.serial = 0;
 725                                 event.xclient.send_event = True;
 726                                 event.xclient.message_type = net_wm_state_atom;
 727                                 event.xclient.window = win;
 728                                 event.xclient.format = 32;
 729                                 event.xclient.data.l[0] = 1;
 730                                 event.xclient.data.l[1] = net_wm_state_fullscreen_atom;
 731                                 event.xclient.data.l[2] = 0;
 732                                 event.xclient.data.l[3] = 1;
 733                                 event.xclient.data.l[4] = 0;
 734                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 735                         }
 736
 737                         dowarp = true;
 738
 739                         break;
 740                 case UnmapNotify:
 741                         if (vid_isoverrideredirect)
 742                                 break;
 743                         // window iconified/rolledup/whatever
 744                         vid_hidden = true;
 745                         VID_RestoreSystemGamma();
 746
 747                         if(vid_isvidmodefullscreen)
 748                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 749
 750                         break;
 751                 case FocusIn:
 752                         if (vid_isoverrideredirect)
 753                                 break;
 754                         // window is now the input focus
 755                         vid_activewindow = true;
 756                         break;
 757                 case FocusOut:
 758                         if (vid_isoverrideredirect)
 759                                 break;
 760
 761                         if(vid_isdesktopfullscreen && event.xfocus.mode == NotifyNormal)
 762                         {
 763                                 // iconify netwm fullscreen window when it loses focus
 764                                 // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
 765                                 XEvent event;
 766                                 event.type = ClientMessage;
 767                                 event.xclient.serial = 0;
 768                                 event.xclient.send_event = True;
 769                                 event.xclient.message_type = net_wm_state_atom;
 770                                 event.xclient.window = win;
 771                                 event.xclient.format = 32;
 772                                 event.xclient.data.l[0] = 1;
 773                                 event.xclient.data.l[1] = net_wm_state_hidden_atom;
 774                                 event.xclient.data.l[2] = 0;
 775                                 event.xclient.data.l[3] = 1;
 776                                 event.xclient.data.l[4] = 0;
 777                                 XSendEvent(vidx11_display, root, False, SubstructureRedirectMask | SubstructureNotifyMask, &event);
 778                         }
 779
 780                         // window is no longer the input focus
 781                         vid_activewindow = false;
 782                         VID_RestoreSystemGamma();
 783
 784                         break;
 785                 case EnterNotify:
 786                         // mouse entered window
 787                         break;
 788                 case LeaveNotify:
 789                         // mouse left window
 790                         break;
 791                 default:
 792                         if(vidx11_shmevent >= 0 && event.type == vidx11_shmevent)
 793                                 --vidx11_shmwait;
 794                         break;
 795                 }
 796         }
 797
 798         if (dowarp)
 799         {
 800                 /* move the mouse to the window center again */
 801                 // we'll catch the warp motion by its send_event flag, updating the
 802                 // stored mouse position without adding any delta motion
 803                 XEvent event;
 804                 event.type = MotionNotify;
 805                 event.xmotion.display = vidx11_display;
 806                 event.xmotion.window = win;
 807                 event.xmotion.x = vid.width / 2;
 808                 event.xmotion.y = vid.height / 2;
 809                 XSendEvent(vidx11_display, win, False, PointerMotionMask, &event);
 810                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 811         }
 812 }
 813
 814 static void *prjobj = NULL;
 815
 816 static void GL_CloseLibrary(void)
 817 {
 818         if (prjobj)
 819                 dlclose(prjobj);
 820         prjobj = NULL;
 821         gl_driver[0] = 0;
 822         qglXGetProcAddressARB = NULL;
 823         gl_extensions = "";
 824         gl_platform = "";
 825         gl_platformextensions = "";
 826 }
 827
 828 static int GL_OpenLibrary(const char *name)
 829 {
 830         Con_Printf("Loading OpenGL driver %s\n", name);
 831         GL_CloseLibrary();
 832         if (!(prjobj = dlopen(name, RTLD_LAZY | RTLD_GLOBAL)))
 833         {
 834                 Con_Printf("Unable to open symbol list for %s\n", name);
 835                 return false;
 836         }
 837         strlcpy(gl_driver, name, sizeof(gl_driver));
 838         return true;
 839 }
 840
 841 void *GL_GetProcAddress(const char *name)
 842 {
 843         void *p = NULL;
 844         if (qglXGetProcAddressARB != NULL)
 845                 p = (void *) qglXGetProcAddressARB((GLubyte *)name);
 846         if (p == NULL)
 847                 p = (void *) dlsym(prjobj, name);
 848         return p;
 849 }
 850
 851 void VID_Shutdown(void)
 852 {
 853         if (!vidx11_display)
 854                 return;
 855
 856         VID_EnableJoystick(false);
 857         VID_SetMouse(false, false, false);
 858         VID_RestoreSystemGamma();
 859
 860         // FIXME: glXDestroyContext here?
 861         if (vid_isvidmodefullscreen)
 862                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
 863
 864         if(vidx11_gc)
 865                 XFreeGC(vidx11_display, vidx11_gc);
 866         vidx11_gc = NULL;
 867
 868         DestroyXImages();
 869         vidx11_shmevent = -1;
 870         vid.softpixels = NULL;
 871
 872         if (vid.softdepthpixels)
 873                 free(vid.softdepthpixels);
 874         vid.softdepthpixels = NULL;
 875
 876         if (win)
 877                 XDestroyWindow(vidx11_display, win);
 878         XCloseDisplay(vidx11_display);
 879
 880         vid_hidden = true;
 881         vid_isfullscreen = false;
 882         vid_isdesktopfullscreen = false;
 883         vid_isvidmodefullscreen = false;
 884         vid_isoverrideredirect = false;
 885         vidx11_display = NULL;
 886         win = 0;
 887         ctx = NULL;
 888
 889         GL_CloseLibrary();
 890         Key_ClearStates ();
 891 }
 892
 893 static void signal_handler(int sig)
 894 {
 895         Con_Printf("Received signal %d, exiting...\n", sig);
 896         VID_RestoreSystemGamma();
 897         Sys_Quit(1);
 898 }
 899
 900 static void InitSig(void)
 901 {
 902         signal(SIGHUP, signal_handler);
 903         signal(SIGINT, signal_handler);
 904         signal(SIGQUIT, signal_handler);
 905         signal(SIGILL, signal_handler);
 906         signal(SIGTRAP, signal_handler);
 907         signal(SIGIOT, signal_handler);
 908         signal(SIGBUS, signal_handler);
 909         signal(SIGFPE, signal_handler);
 910         signal(SIGSEGV, signal_handler);
 911         signal(SIGTERM, signal_handler);
 912 }
 913
 914 void VID_Finish (void)
 915 {
 916         vid_usevsync = vid_vsync.integer && !cls.timedemo && qglXSwapIntervalSGI;
 917         switch(vid.renderpath)
 918         {
 919                 case RENDERPATH_SOFT:
 920                         if(vidx11_shmevent >= 0) {
 921                                 vidx11_ximage_pos = !vidx11_ximage_pos;
 922                                 vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
 923                                 DPSOFTRAST_SetRenderTargets(vid.width, vid.height, vid.softdepthpixels, vid.softpixels, NULL, NULL, NULL);
 924
 925                                 ++vidx11_shmwait;
 926                                 XShmPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height, True);
 927
 928                                 // save mouse motion so we can deal with it later
 929                                 in_mouse_x = 0;
 930                                 in_mouse_y = 0;
 931                                 while(vidx11_shmwait > 1)
 932                                         HandleEvents();
 933                                 in_mouse_x_save += in_mouse_x;
 934                                 in_mouse_y_save += in_mouse_y;
 935                                 in_mouse_x = 0;
 936                                 in_mouse_y = 0;
 937                         } else {
 938                                 // no buffer switching here, we just flush the renderer
 939                                 DPSOFTRAST_Finish();
 940                                 XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height);
 941                         }
 942                         break;
 943
 944                 case RENDERPATH_GL11:
 945                 case RENDERPATH_GL13:
 946                 case RENDERPATH_GL20:
 947                 case RENDERPATH_GLES1:
 948                 case RENDERPATH_GLES2:
 949                         if (vid_usingvsync != vid_usevsync)
 950                         {
 951                                 vid_usingvsync = vid_usevsync;
 952                                 if (qglXSwapIntervalSGI && qglXSwapIntervalSGI (vid_usevsync))
 953                                         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");
 954                         }
 955
 956                         if (!vid_hidden)
 957                         {
 958                                 CHECKGLERROR
 959                                 if (r_speeds.integer == 2 || gl_finish.integer)
 960                                         GL_Finish();
 961                                 qglXSwapBuffers(vidx11_display, win);CHECKGLERROR
 962                         }
 963                         break;
 964
 965                 case RENDERPATH_D3D9:
 966                 case RENDERPATH_D3D10:
 967                 case RENDERPATH_D3D11:
 968                         break;
 969         }
 970
 971         if (vid_x11_hardwaregammasupported)
 972                 VID_UpdateGamma(false, vid_x11_gammarampsize);
 973 }
 974
 975 int VID_SetGamma(unsigned short *ramps, int rampsize)
 976 {
 977         return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 978 }
 979
 980 int VID_GetGamma(unsigned short *ramps, int rampsize)
 981 {
 982         return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
 983 }
 984
 985 void VID_Init(void)
 986 {
 987 #ifdef USEDGA
 988         Cvar_RegisterVariable (&vid_dgamouse);
 989 #endif
 990         Cvar_RegisterVariable (&vid_desktopfullscreen);
 991         InitSig(); // trap evil signals
 992 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
 993         if (COM_CheckParm ("-nomouse"))
 994                 mouse_avail = false;
 995         vidx11_shminfo[0].shmid = -1;
 996         vidx11_shminfo[1].shmid = -1;
 997 }
 998
 999 static void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
1000 {
1001         *attrib++ = GLX_RGBA;
1002         *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
1003         *attrib++ = GLX_GREEN_SIZE;*attrib++ = stencil ? 8 : 5;
1004         *attrib++ = GLX_BLUE_SIZE;*attrib++ = stencil ? 8 : 5;
1005         *attrib++ = GLX_DOUBLEBUFFER;
1006         *attrib++ = GLX_DEPTH_SIZE;*attrib++ = stencil ? 24 : 16;
1007         // if stencil is enabled, ask for alpha too
1008         if (stencil)
1009         {
1010                 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
1011                 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 8;
1012         }
1013         if (stereobuffer)
1014                 *attrib++ = GLX_STEREO;
1015         if (samples > 1)
1016         {
1017                 *attrib++ = GLX_SAMPLE_BUFFERS_ARB;
1018                 *attrib++ = 1;
1019                 *attrib++ = GLX_SAMPLES_ARB;
1020                 *attrib++ = samples;
1021         }
1022         *attrib++ = None;
1023 }
1024
1025 static qboolean VID_InitModeSoft(viddef_mode_t *mode)
1026 {
1027         int i, j;
1028         XSetWindowAttributes attr;
1029         XClassHint *clshints;
1030         XWMHints *wmhints;
1031         XSizeHints *szhints;
1032         unsigned long mask;
1033         int MajorVersion, MinorVersion;
1034         char *xpm;
1035         char **idata;
1036         unsigned char *data;
1037         XGCValues gcval;
1038         const char *dpyname;
1039         char vabuf[1024];
1040
1041         vid_isfullscreen = false;
1042         vid_isdesktopfullscreen = false;
1043         vid_isvidmodefullscreen = false;
1044         vid_isoverrideredirect = false;
1045
1046         if (!(vidx11_display = XOpenDisplay(NULL)))
1047         {
1048                 Con_Print("Couldn't open the X display\n");
1049                 return false;
1050         }
1051         dpyname = XDisplayName(NULL);
1052
1053         // LordHavoc: making the close button on a window do the right thing
1054         // seems to involve this mess, sigh...
1055         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1056         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1057         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1058         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1059         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1060         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1061
1062         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1063         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1064
1065         vidx11_screen = DefaultScreen(vidx11_display);
1066         root = RootWindow(vidx11_display, vidx11_screen);
1067
1068         desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
1069         desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
1070         desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
1071         desktop_mode.refreshrate = 60; // FIXME
1072         desktop_mode.pixelheight_num = 1; // FIXME
1073         desktop_mode.pixelheight_denom = 1; // FIXME
1074
1075         // Get video mode list
1076         MajorVersion = MinorVersion = 0;
1077         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1078                 vidmode_ext = false;
1079         else
1080         {
1081                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1082                 vidmode_ext = true;
1083         }
1084
1085         if (mode->fullscreen)
1086         {
1087                 if(vid_desktopfullscreen.integer)
1088                 {
1089                         // TODO detect WM support
1090                         vid_isdesktopfullscreen = true;
1091                         vid_isfullscreen = true;
1092                         // width and height will be filled in later
1093                         Con_DPrintf("Using NetWM fullscreen mode\n");
1094                 }
1095
1096                 if(!vid_isfullscreen && vidmode_ext)
1097                 {
1098                         int best_fit, best_dist, dist, x, y;
1099
1100                         // Are we going fullscreen?  If so, let's change video mode
1101                         XF86VidModeModeLine *current_vidmode;
1102                         XF86VidModeModeInfo **vidmodes;
1103                         int num_vidmodes;
1104
1105                         // This nice hack comes from the SDL source code
1106                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1107                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1108
1109                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1110                         best_dist = 0;
1111                         best_fit = -1;
1112
1113                         for (i = 0; i < num_vidmodes; i++)
1114                         {
1115                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1116                                         continue;
1117
1118                                 x = mode->width - vidmodes[i]->hdisplay;
1119                                 y = mode->height - vidmodes[i]->vdisplay;
1120                                 dist = (x * x) + (y * y);
1121                                 if (best_fit == -1 || dist < best_dist)
1122                                 {
1123                                         best_dist = dist;
1124                                         best_fit = i;
1125                                 }
1126                         }
1127
1128                         if (best_fit != -1)
1129                         {
1130                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1131                                 // to width/height =, so the window will take the full area of
1132                                 // the mode chosen
1133                                 mode->width = vidmodes[best_fit]->hdisplay;
1134                                 mode->height = vidmodes[best_fit]->vdisplay;
1135
1136                                 // change to the mode
1137                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1138                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1139                                 vid_isvidmodefullscreen = true;
1140                                 vid_isfullscreen = true;
1141
1142                                 // Move the viewport to top left
1143                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1144                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1145                         }
1146
1147                         free(vidmodes);
1148                 }
1149
1150                 if(!vid_isfullscreen)
1151                 {
1152                         // sorry, no FS available
1153                         // use the full desktop resolution
1154                         vid_isfullscreen = true;
1155                         // width and height will be filled in later
1156                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1157                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1158                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1159                 }
1160         }
1161
1162         // LordHavoc: save the visual for use in gamma ramp settings later
1163         vidx11_visual = DefaultVisual(vidx11_display, vidx11_screen);
1164
1165         /* window attributes */
1166         attr.background_pixel = 0;
1167         attr.border_pixel = 0;
1168         // LordHavoc: save the colormap for later, too
1169         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, vidx11_visual, AllocNone);
1170         attr.event_mask = X_MASK;
1171
1172         if (mode->fullscreen)
1173         {
1174                 if(vid_isdesktopfullscreen)
1175                 {
1176                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1177                         attr.backing_store = NotUseful;
1178                         attr.save_under = False;
1179                 }
1180                 else
1181                 {
1182                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1183                         attr.override_redirect = True;
1184                         attr.backing_store = NotUseful;
1185                         attr.save_under = False;
1186                         vid_isoverrideredirect = true; // so it knows to grab
1187                 }
1188         }
1189         else
1190         {
1191                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1192         }
1193
1194         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, CopyFromParent, InputOutput, vidx11_visual, mask, &attr);
1195
1196         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1197         if(data)
1198         {
1199                 // use _NET_WM_ICON too
1200                 static long netwm_icon[MAX_NETWM_ICON];
1201                 int pos = 0;
1202                 int i = 1;
1203
1204                 while(data)
1205                 {
1206                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1207                         {
1208                                 netwm_icon[pos++] = image_width;
1209                                 netwm_icon[pos++] = image_height;
1210                                 for(i = 0; i < image_height; ++i)
1211                                         for(j = 0; j < image_width; ++j)
1212                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1213                         }
1214                         else
1215                         {
1216                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1217                         }
1218                         ++i;
1219                         Mem_Free(data);
1220                         data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
1221                 }
1222                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1223         }
1224
1225         // fallthrough for old window managers
1226         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1227         idata = NULL;
1228         if(xpm)
1229                 idata = XPM_DecodeString(xpm);
1230         if(!idata)
1231                 idata = ENGINE_ICON;
1232
1233         wmhints = XAllocWMHints();
1234         if(XpmCreatePixmapFromData(vidx11_display, win,
1235                 idata,
1236                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1237                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1238
1239         if(xpm)
1240                 Mem_Free(xpm);
1241
1242         clshints = XAllocClassHint();
1243         clshints->res_name = strdup(gamename);
1244         clshints->res_class = strdup("DarkPlaces");
1245
1246         szhints = XAllocSizeHints();
1247         if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
1248         {
1249                 szhints->min_width = szhints->max_width = mode->width;
1250                 szhints->min_height = szhints->max_height = mode->height;
1251                 szhints->flags |= PMinSize | PMaxSize;
1252         }
1253
1254         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1255         // strdup() allocates using malloc(), should be freed with free()
1256         free(clshints->res_name);
1257         free(clshints->res_class);
1258         XFree(clshints);
1259         XFree(wmhints);
1260         XFree(szhints);
1261
1262         //XStoreName(vidx11_display, win, gamename);
1263         XMapWindow(vidx11_display, win);
1264
1265         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1266
1267         if (vid_isoverrideredirect)
1268         {
1269                 XMoveWindow(vidx11_display, win, 0, 0);
1270                 XRaiseWindow(vidx11_display, win);
1271                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1272                 XFlush(vidx11_display);
1273         }
1274
1275         if(vid_isvidmodefullscreen)
1276         {
1277                 // Move the viewport to top left
1278                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1279         }
1280
1281         //XSync(vidx11_display, False);
1282
1283         // COMMANDLINEOPTION: Unix GLX: -noshm disables XShm extensioon
1284         if(dpyname && dpyname[0] == ':' && dpyname[1] && (dpyname[2] < '0' || dpyname[2] > '9') && !COM_CheckParm("-noshm") && XShmQueryExtension(vidx11_display))
1285         {
1286                 Con_Printf("Using XShm\n");
1287                 vidx11_shmevent = XShmGetEventBase(vidx11_display) + ShmCompletion;
1288         }
1289         else
1290         {
1291                 Con_Printf("Not using XShm\n");
1292                 vidx11_shmevent = -1;
1293         }
1294         BuildXImages(mode->width, mode->height);
1295
1296         vidx11_ximage_pos = 0;
1297         vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
1298         vidx11_shmwait = 0;
1299         vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
1300
1301         memset(&gcval, 0, sizeof(gcval));
1302         vidx11_gc = XCreateGC(vidx11_display, win, 0, &gcval);
1303
1304         if (DPSOFTRAST_Init(mode->width, mode->height, vid_soft_threads.integer, vid_soft_interlace.integer, (unsigned int *)vid.softpixels, (unsigned int *)vid.softdepthpixels) < 0)
1305         {
1306                 Con_Printf("Failed to initialize software rasterizer\n");
1307                 VID_Shutdown();
1308                 return false;
1309         }
1310
1311         XSync(vidx11_display, False);
1312
1313         vid_usingmousegrab = false;
1314         vid_usingmouse = false;
1315         vid_usinghidecursor = false;
1316         vid_usingvsync = false;
1317         vid_hidden = false;
1318         vid_activewindow = true;
1319         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1320 #ifdef USEDGA
1321         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1322         if (!vid_x11_dgasupported)
1323                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1324 #endif
1325
1326         VID_Soft_SharedSetup();
1327
1328         return true;
1329 }
1330
1331 static qboolean VID_InitModeGL(viddef_mode_t *mode)
1332 {
1333         int i, j;
1334         int attrib[32];
1335         XSetWindowAttributes attr;
1336         XClassHint *clshints;
1337         XWMHints *wmhints;
1338         XSizeHints *szhints;
1339         unsigned long mask;
1340         XVisualInfo *visinfo;
1341         int MajorVersion, MinorVersion;
1342         const char *drivername;
1343         char *xpm;
1344         char **idata;
1345         unsigned char *data;
1346         char vabuf[1024];
1347
1348         vid_isfullscreen = false;
1349         vid_isdesktopfullscreen = false;
1350         vid_isvidmodefullscreen = false;
1351         vid_isoverrideredirect = false;
1352
1353 #if defined(__APPLE__) && defined(__MACH__)
1354         drivername = "/usr/X11R6/lib/libGL.1.dylib";
1355 #else
1356         drivername = "libGL.so.1";
1357 #endif
1358 // 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
1359 // 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
1360 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
1361         i = COM_CheckParm("-gl_driver");
1362         if (i && i < com_argc - 1)
1363                 drivername = com_argv[i + 1];
1364         if (!GL_OpenLibrary(drivername))
1365         {
1366                 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
1367                 return false;
1368         }
1369
1370         if (!(vidx11_display = XOpenDisplay(NULL)))
1371         {
1372                 Con_Print("Couldn't open the X display\n");
1373                 return false;
1374         }
1375
1376         // LordHavoc: making the close button on a window do the right thing
1377         // seems to involve this mess, sigh...
1378         wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
1379         net_wm_state_atom = XInternAtom(vidx11_display, "_NET_WM_STATE", false);
1380         net_wm_state_fullscreen_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_FULLSCREEN", false);
1381         net_wm_state_hidden_atom = XInternAtom(vidx11_display, "_NET_WM_STATE_HIDDEN", false);
1382         net_wm_icon = XInternAtom(vidx11_display, "_NET_WM_ICON", false);
1383         cardinal = XInternAtom(vidx11_display, "CARDINAL", false);
1384
1385         // make autorepeat send keypress/keypress/.../keyrelease instead of intervening keyrelease
1386         XkbSetDetectableAutoRepeat(vidx11_display, true, NULL);
1387
1388         vidx11_screen = DefaultScreen(vidx11_display);
1389         root = RootWindow(vidx11_display, vidx11_screen);
1390
1391         desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
1392         desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
1393         desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
1394         desktop_mode.refreshrate = 60; // FIXME
1395         desktop_mode.pixelheight_num = 1; // FIXME
1396         desktop_mode.pixelheight_denom = 1; // FIXME
1397
1398         // Get video mode list
1399         MajorVersion = MinorVersion = 0;
1400         if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
1401                 vidmode_ext = false;
1402         else
1403         {
1404                 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
1405                 vidmode_ext = true;
1406         }
1407
1408         if ((qglXChooseVisual = (XVisualInfo *(GLAPIENTRY *)(Display *dpy, int screen, int *attribList))GL_GetProcAddress("glXChooseVisual")) == NULL
1409          || (qglXCreateContext = (GLXContext (GLAPIENTRY *)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct))GL_GetProcAddress("glXCreateContext")) == NULL
1410          || (qglXDestroyContext = (void (GLAPIENTRY *)(Display *dpy, GLXContext ctx))GL_GetProcAddress("glXDestroyContext")) == NULL
1411          || (qglXMakeCurrent = (Bool (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable, GLXContext ctx))GL_GetProcAddress("glXMakeCurrent")) == NULL
1412          || (qglXSwapBuffers = (void (GLAPIENTRY *)(Display *dpy, GLXDrawable drawable))GL_GetProcAddress("glXSwapBuffers")) == NULL
1413          || (qglXQueryExtensionsString = (const char *(GLAPIENTRY *)(Display *dpy, int screen))GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
1414         {
1415                 Con_Printf("glX functions not found in %s\n", gl_driver);
1416                 return false;
1417         }
1418
1419         VID_BuildGLXAttrib(attrib, mode->bitsperpixel == 32, mode->stereobuffer, mode->samples);
1420         visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
1421         if (!visinfo)
1422         {
1423                 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
1424                 return false;
1425         }
1426
1427         if (mode->fullscreen)
1428         {
1429                 if(vid_desktopfullscreen.integer)
1430                 {
1431                         // TODO detect WM support
1432                         vid_isdesktopfullscreen = true;
1433                         vid_isfullscreen = true;
1434                         // width and height will be filled in later
1435                         Con_DPrintf("Using NetWM fullscreen mode\n");
1436                 }
1437
1438                 if(!vid_isfullscreen && vidmode_ext)
1439                 {
1440                         int best_fit, best_dist, dist, x, y;
1441
1442                         // Are we going fullscreen?  If so, let's change video mode
1443                         XF86VidModeModeLine *current_vidmode;
1444                         XF86VidModeModeInfo **vidmodes;
1445                         int num_vidmodes;
1446
1447                         // This nice hack comes from the SDL source code
1448                         current_vidmode = (XF86VidModeModeLine*)((char*)&init_vidmode + sizeof(init_vidmode.dotclock));
1449                         XF86VidModeGetModeLine(vidx11_display, vidx11_screen, (int*)&init_vidmode.dotclock, current_vidmode);
1450
1451                         XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1452                         best_dist = 0;
1453                         best_fit = -1;
1454
1455                         for (i = 0; i < num_vidmodes; i++)
1456                         {
1457                                 if (mode->width > vidmodes[i]->hdisplay || mode->height > vidmodes[i]->vdisplay)
1458                                         continue;
1459
1460                                 x = mode->width - vidmodes[i]->hdisplay;
1461                                 y = mode->height - vidmodes[i]->vdisplay;
1462                                 dist = (x * x) + (y * y);
1463                                 if (best_fit == -1 || dist < best_dist)
1464                                 {
1465                                         best_dist = dist;
1466                                         best_fit = i;
1467                                 }
1468                         }
1469
1470                         if (best_fit != -1)
1471                         {
1472                                 // LordHavoc: changed from ActualWidth/ActualHeight =,
1473                                 // to width/height =, so the window will take the full area of
1474                                 // the mode chosen
1475                                 mode->width = vidmodes[best_fit]->hdisplay;
1476                                 mode->height = vidmodes[best_fit]->vdisplay;
1477
1478                                 // change to the mode
1479                                 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
1480                                 memcpy(&game_vidmode, vidmodes[best_fit], sizeof(game_vidmode));
1481                                 vid_isvidmodefullscreen = true;
1482                                 vid_isfullscreen = true;
1483
1484                                 // Move the viewport to top left
1485                                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1486                                 Con_DPrintf("Using XVidMode fullscreen mode at %dx%d\n", mode->width, mode->height);
1487                         }
1488
1489                         free(vidmodes);
1490                 }
1491
1492                 if(!vid_isfullscreen)
1493                 {
1494                         // sorry, no FS available
1495                         // use the full desktop resolution
1496                         vid_isfullscreen = true;
1497                         // width and height will be filled in later
1498                         mode->width = DisplayWidth(vidx11_display, vidx11_screen);
1499                         mode->height = DisplayHeight(vidx11_display, vidx11_screen);
1500                         Con_DPrintf("Using X11 fullscreen mode at %dx%d\n", mode->width, mode->height);
1501                 }
1502         }
1503
1504         // LordHavoc: save the visual for use in gamma ramp settings later
1505         vidx11_visual = visinfo->visual;
1506
1507         /* window attributes */
1508         attr.background_pixel = 0;
1509         attr.border_pixel = 0;
1510         // LordHavoc: save the colormap for later, too
1511         vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
1512         attr.event_mask = X_MASK;
1513
1514         if (mode->fullscreen)
1515         {
1516                 if(vid_isdesktopfullscreen)
1517                 {
1518                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
1519                         attr.backing_store = NotUseful;
1520                         attr.save_under = False;
1521                 }
1522                 else
1523                 {
1524                         mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
1525                         attr.override_redirect = True;
1526                         attr.backing_store = NotUseful;
1527                         attr.save_under = False;
1528                         vid_isoverrideredirect = true; // so it knows to grab
1529                 }
1530         }
1531         else
1532         {
1533                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1534         }
1535
1536         win = XCreateWindow(vidx11_display, root, 0, 0, mode->width, mode->height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
1537
1538         data = loadimagepixelsbgra("darkplaces-icon", false, false, false, NULL);
1539         if(data)
1540         {
1541                 // use _NET_WM_ICON too
1542                 static long netwm_icon[MAX_NETWM_ICON];
1543                 int pos = 0;
1544                 int i = 1;
1545
1546                 while(data)
1547                 {
1548                         if(pos + 2 * image_width * image_height < MAX_NETWM_ICON)
1549                         {
1550                                 netwm_icon[pos++] = image_width;
1551                                 netwm_icon[pos++] = image_height;
1552                                 for(i = 0; i < image_height; ++i)
1553                                         for(j = 0; j < image_width; ++j)
1554                                                 netwm_icon[pos++] = BuffLittleLong(&data[(i*image_width+j)*4]);
1555                         }
1556                         else
1557                         {
1558                                 Con_Printf("Skipping NETWM icon #%d because there is no space left\n", i);
1559                         }
1560                         ++i;
1561                         Mem_Free(data);
1562                         data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
1563                 }
1564                 XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
1565         }
1566
1567         // fallthrough for old window managers
1568         xpm = (char *) FS_LoadFile("darkplaces-icon.xpm", tempmempool, false, NULL);
1569         idata = NULL;
1570         if(xpm)
1571                 idata = XPM_DecodeString(xpm);
1572         if(!idata)
1573                 idata = ENGINE_ICON;
1574
1575         wmhints = XAllocWMHints();
1576         if(XpmCreatePixmapFromData(vidx11_display, win,
1577                 idata,
1578                 &wmhints->icon_pixmap, &wmhints->icon_mask, NULL) == XpmSuccess)
1579                 wmhints->flags |= IconPixmapHint | IconMaskHint;
1580
1581         if(xpm)
1582                 Mem_Free(xpm);
1583
1584         clshints = XAllocClassHint();
1585         clshints->res_name = strdup(gamename);
1586         clshints->res_class = strdup("DarkPlaces");
1587
1588         szhints = XAllocSizeHints();
1589         if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
1590         {
1591                 szhints->min_width = szhints->max_width = mode->width;
1592                 szhints->min_height = szhints->max_height = mode->height;
1593                 szhints->flags |= PMinSize | PMaxSize;
1594         }
1595
1596         XmbSetWMProperties(vidx11_display, win, gamename, gamename, (char **) com_argv, com_argc, szhints, wmhints, clshints);
1597         // strdup() allocates using malloc(), should be freed with free()
1598         free(clshints->res_name);
1599         free(clshints->res_class);
1600         XFree(clshints);
1601         XFree(wmhints);
1602         XFree(szhints);
1603
1604         //XStoreName(vidx11_display, win, gamename);
1605         XMapWindow(vidx11_display, win);
1606
1607         XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
1608
1609         if (vid_isoverrideredirect)
1610         {
1611                 XMoveWindow(vidx11_display, win, 0, 0);
1612                 XRaiseWindow(vidx11_display, win);
1613                 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
1614                 XFlush(vidx11_display);
1615         }
1616
1617         if(vid_isvidmodefullscreen)
1618         {
1619                 // Move the viewport to top left
1620                 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
1621         }
1622
1623         //XSync(vidx11_display, False);
1624
1625         ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
1626         XFree(visinfo); // glXChooseVisual man page says to use XFree to free visinfo
1627         if (!ctx)
1628         {
1629                 Con_Printf ("glXCreateContext failed\n");
1630                 return false;
1631         }
1632
1633         if (!qglXMakeCurrent(vidx11_display, win, ctx))
1634         {
1635                 Con_Printf ("glXMakeCurrent failed\n");
1636                 return false;
1637         }
1638
1639         XSync(vidx11_display, False);
1640
1641         if ((qglGetString = (const GLubyte* (GLAPIENTRY *)(GLenum name))GL_GetProcAddress("glGetString")) == NULL)
1642         {
1643                 Con_Printf ("glGetString not found in %s\n", gl_driver);
1644                 return false;
1645         }
1646
1647         gl_extensions = (const char *)qglGetString(GL_EXTENSIONS);
1648         gl_platform = "GLX";
1649         gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
1650
1651 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1652 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1653 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
1654         GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
1655 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
1656 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
1657 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
1658         GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
1659
1660         vid_usingmousegrab = false;
1661         vid_usingmouse = false;
1662         vid_usinghidecursor = false;
1663         vid_usingvsync = false;
1664         vid_hidden = false;
1665         vid_activewindow = true;
1666         vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
1667 #ifdef USEDGA
1668         vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
1669         if (!vid_x11_dgasupported)
1670                 Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
1671 #endif
1672
1673         GL_Init();
1674         return true;
1675 }
1676
1677 qboolean VID_InitMode(viddef_mode_t *mode)
1678 {
1679 #ifdef SSE_POSSIBLE
1680         if (vid_soft.integer)
1681                 return VID_InitModeSoft(mode);
1682         else
1683 #endif
1684                 return VID_InitModeGL(mode);
1685 }
1686
1687 void Sys_SendKeyEvents(void)
1688 {
1689         static qboolean sound_active = true;
1690
1691         // enable/disable sound on focus gain/loss
1692         if ((!vid_hidden && vid_activewindow) || !snd_mutewhenidle.integer)
1693         {
1694                 if (!sound_active)
1695                 {
1696                         S_UnblockSound ();
1697                         sound_active = true;
1698                 }
1699         }
1700         else
1701         {
1702                 if (sound_active)
1703                 {
1704                         S_BlockSound ();
1705                         sound_active = false;
1706                 }
1707         }
1708
1709         HandleEvents();
1710 }
1711
1712 void VID_BuildJoyState(vid_joystate_t *joystate)
1713 {
1714         VID_Shared_BuildJoyState_Begin(joystate);
1715         VID_Shared_BuildJoyState_Finish(joystate);
1716 }
1717
1718 void VID_EnableJoystick(qboolean enable)
1719 {
1720         int index = joy_enable.integer > 0 ? joy_index.integer : -1;
1721         qboolean success = false;
1722         int sharedcount = 0;
1723         sharedcount = VID_Shared_SetJoystick(index);
1724         if (index >= 0 && index < sharedcount)
1725                 success = true;
1726
1727         // update cvar containing count of XInput joysticks
1728         if (joy_detected.integer != sharedcount)
1729                 Cvar_SetValueQuick(&joy_detected, sharedcount);
1730
1731         Cvar_SetValueQuick(&joy_active, success ? 1 : 0);
1732 }
1733
1734 void IN_Move (void)
1735 {
1736         vid_joystate_t joystate;
1737         VID_EnableJoystick(true);
1738         VID_BuildJoyState(&joystate);
1739         VID_ApplyJoyState(&joystate);
1740 }
1741
1742 vid_mode_t *VID_GetDesktopMode(void)
1743 {
1744         return &desktop_mode;
1745 }
1746
1747 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)
1748 {
1749         if(vidmode_ext)
1750         {
1751                 int i, bpp;
1752                 size_t k;
1753                 XF86VidModeModeInfo **vidmodes;
1754                 int num_vidmodes;
1755
1756                 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
1757                 k = 0;
1758                 for (i = 0; i < num_vidmodes; i++)
1759                 {
1760                         if(k >= maxcount)
1761                                 break;
1762                         // we don't get bpp info, so let's just assume all of 8, 15, 16, 24, 32 work
1763                         for(bpp = 8; bpp <= 32; bpp = ((bpp == 8) ? 15 : (bpp & 0xF8) + 8))
1764                         {
1765                                 if(k >= maxcount)
1766                                         break;
1767                                 modes[k].width = vidmodes[i]->hdisplay;
1768                                 modes[k].height = vidmodes[i]->vdisplay;
1769                                 modes[k].bpp = 8;
1770                                 if(vidmodes[i]->dotclock && vidmodes[i]->htotal && vidmodes[i]->vtotal)
1771                                         modes[k].refreshrate = vidmodes[i]->dotclock / vidmodes[i]->htotal / vidmodes[i]->vtotal;
1772                                 else
1773                                         modes[k].refreshrate = 60;
1774                                 modes[k].pixelheight_num = 1;
1775                                 modes[k].pixelheight_denom = 1; // xvidmode does not provide this
1776                                 ++k;
1777                         }
1778                 }
1779                 // manpage of XF86VidModeGetAllModeLines says it should be freed by the caller
1780                 XFree(vidmodes);
1781                 return k;
1782         }
1783         return 0; // FIXME implement this
1784 }