vid_glx.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 #include <termios.h>
  21 #include <sys/ioctl.h>
  22 #include <sys/stat.h>
  23 #include <sys/vt.h>
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <signal.h>
  27
  28 #include <dlfcn.h>
  29
  30 #include "quakedef.h"
  31
  32 #include <GL/glx.h>
  33
  34 #include <X11/keysym.h>
  35 #include <X11/cursorfont.h>
  36
  37 #include <X11/extensions/xf86dga.h>
  38 #include <X11/extensions/xf86vmode.h>
  39
  40 static Display *dpy = NULL;
  41 static int scrnum;
  42 static Window win;
  43 static GLXContext ctx = NULL;
  44
  45 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  46 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  47                     PointerMotionMask | ButtonMotionMask )
  48 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
  49
  50
  51 unsigned                d_8to24table[256];
  52 unsigned char   d_15to8table[65536];
  53
  54 cvar_t  vid_mode = {"vid_mode","0",false};
  55
  56 viddef_t        vid;                            // global video state
  57
  58 static qboolean        mouse_avail = true;
  59 static qboolean        mouse_active = false;
  60 static float   mouse_x, mouse_y;
  61 static float    old_mouse_x, old_mouse_y;
  62 static int p_mouse_x, p_mouse_y;
  63
  64 static cvar_t in_mouse = {"in_mouse", "1", false};
  65 static cvar_t in_dgamouse = {"in_dgamouse", "1", false};
  66 static cvar_t m_filter = {"m_filter", "0"};
  67
  68 qboolean dgamouse = false;
  69 qboolean vidmode_ext = false;
  70
  71 static int win_x, win_y;
  72
  73 static int scr_width, scr_height;
  74
  75 static XF86VidModeModeInfo **vidmodes;
  76 //static int default_dotclock_vidmode;
  77 static int num_vidmodes;
  78 static qboolean vidmode_active = false;
  79
  80 /*-----------------------------------------------------------------------*/
  81
  82 int             texture_extension_number = 1;
  83
  84 float           gldepthmin, gldepthmax;
  85
  86 const char *gl_vendor;
  87 const char *gl_renderer;
  88 const char *gl_version;
  89 const char *gl_extensions;
  90
  91 void (*qglMTexCoord2f) (GLenum, GLfloat, GLfloat);
  92 void (*qglSelectTexture) (GLenum);
  93
  94 //static float vid_gamma = 1.0;
  95
  96 // LordHavoc: ARB multitexture support
  97 int gl_mtex_enum = 0;
  98
  99 // LordHavoc: in GLX these are never set, simply provided to make the rest of the code work
 100 qboolean isG200 = false;
 101 qboolean isRagePro = false;
 102 qboolean gl_mtexable = false;
 103 qboolean gl_arrays = false;
 104
 105 /*-----------------------------------------------------------------------*/
 106 static int
 107 XLateKey(XKeyEvent *ev/*, qboolean modified*/)
 108 {
 109         char tmp[2];
 110         int key = 0;
 111         KeySym keysym;
 112
 113 /*      if (!modified) {*/
 114                 keysym = XLookupKeysym(ev, 0);
 115 /*      } else {
 116                 XLookupString(ev, tmp, 1, &keysym, NULL);
 117         }*/
 118
 119         switch(keysym) {
 120                 case XK_KP_Page_Up:     key = KP_PGUP; break;
 121                 case XK_Page_Up:        key = K_PGUP; break;
 122
 123                 case XK_KP_Page_Down:   key = KP_PGDN; break;
 124                 case XK_Page_Down:      key = K_PGDN; break;
 125
 126                 case XK_KP_Home:        key = KP_HOME; break;
 127                 case XK_Home:           key = K_HOME; break;
 128
 129                 case XK_KP_End:         key = KP_END; break;
 130                 case XK_End:            key = K_END; break;
 131
 132                 case XK_KP_Left:        key = KP_LEFTARROW; break;
 133                 case XK_Left:           key = K_LEFTARROW; break;
 134
 135                 case XK_KP_Right:       key = KP_RIGHTARROW; break;
 136                 case XK_Right:          key = K_RIGHTARROW; break;
 137
 138                 case XK_KP_Down:        key = KP_DOWNARROW; break;
 139                 case XK_Down:           key = K_DOWNARROW; break;
 140
 141                 case XK_KP_Up:          key = KP_UPARROW; break;
 142                 case XK_Up:                     key = K_UPARROW; break;
 143
 144                 case XK_Escape:         key = K_ESCAPE; break;
 145
 146                 case XK_KP_Enter:       key = KP_ENTER; break;
 147                 case XK_Return:         key = K_ENTER; break;
 148
 149                 case XK_Tab:            key = K_TAB; break;
 150
 151                 case XK_F1:                     key = K_F1; break;
 152                 case XK_F2:                     key = K_F2; break;
 153                 case XK_F3:                     key = K_F3; break;
 154                 case XK_F4:                     key = K_F4; break;
 155                 case XK_F5:                     key = K_F5; break;
 156                 case XK_F6:                     key = K_F6; break;
 157                 case XK_F7:                     key = K_F7; break;
 158                 case XK_F8:                     key = K_F8; break;
 159                 case XK_F9:                     key = K_F9; break;
 160                 case XK_F10:            key = K_F10; break;
 161                 case XK_F11:            key = K_F11; break;
 162                 case XK_F12:            key = K_F12; break;
 163
 164                 case XK_BackSpace:      key = K_BACKSPACE; break;
 165
 166                 case XK_KP_Delete:      key = KP_DEL; break;
 167                 case XK_Delete:         key = K_DEL; break;
 168
 169                 case XK_Pause:          key = K_PAUSE; break;
 170
 171                 case XK_Shift_L:
 172                 case XK_Shift_R:        key = K_SHIFT; break;
 173
 174                 case XK_Execute:
 175                 case XK_Control_L:
 176                 case XK_Control_R:      key = K_CTRL; break;
 177
 178                 case XK_Mode_switch:
 179                 case XK_Alt_L:
 180                 case XK_Meta_L:
 181                 case XK_Alt_R:
 182                 case XK_Meta_R:         key = K_ALT; break;
 183
 184                 case XK_Caps_Lock:      key = K_CAPSLOCK; break;
 185                 case XK_KP_Begin:       key = KP_5; break;
 186
 187                 case XK_Insert:         key = K_INS; break;
 188                 case XK_KP_Insert:      key = KP_INS; break;
 189
 190                 case XK_KP_Multiply:    key = KP_MULTIPLY; break;
 191                 case XK_KP_Add:         key = KP_PLUS; break;
 192                 case XK_KP_Subtract:    key = KP_MINUS; break;
 193                 case XK_KP_Divide:      key = KP_DIVIDE; break;
 194
 195                 /* For Sun keyboards */
 196                 case XK_F27:            key = K_HOME; break;
 197                 case XK_F29:            key = K_PGUP; break;
 198                 case XK_F33:            key = K_END; break;
 199                 case XK_F35:            key = K_PGDN; break;
 200
 201                 default:
 202                         if (keysym < 128) {
 203                                 /* ASCII keys */
 204                                 key = keysym;
 205                                 if (/*!modified && */((key >= 'A') && (key <= 'Z'))) {
 206                                         key = key + ('a' - 'A');
 207                                 }
 208                         }
 209                         break;
 210         }
 211
 212         return key;
 213 }
 214
 215 static Cursor CreateNullCursor(Display *display, Window root)
 216 {
 217     Pixmap cursormask;
 218     XGCValues xgc;
 219     GC gc;
 220     XColor dummycolour;
 221     Cursor cursor;
 222
 223     cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
 224     xgc.function = GXclear;
 225     gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 226     XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 227     dummycolour.pixel = 0;
 228     dummycolour.red = 0;
 229     dummycolour.flags = 04;
 230     cursor = XCreatePixmapCursor(display, cursormask, cursormask,
 231           &dummycolour,&dummycolour, 0,0);
 232     XFreePixmap(display,cursormask);
 233     XFreeGC(display,gc);
 234     return cursor;
 235 }
 236
 237 static void install_grabs(void)
 238 {
 239         XWindowAttributes attribs_1;
 240         XSetWindowAttributes attribs_2;
 241
 242         XGetWindowAttributes(dpy, win, &attribs_1);
 243         attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
 244         XChangeWindowAttributes(dpy, win, CWEventMask, &attribs_2);
 245
 246 // inviso cursor
 247         XDefineCursor(dpy, win, CreateNullCursor(dpy, win));
 248
 249         XGrabPointer(dpy, win,  True, 0, GrabModeAsync, GrabModeAsync,
 250                      win, None, CurrentTime);
 251
 252 /*      if (in_dgamouse.value) {
 253                 int MajorVersion, MinorVersion;
 254
 255                 if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
 256                         // unable to query, probalby not supported
 257                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 258                         in_dgamouse.value = 0;
 259                 } else {
 260                         dgamouse = true;
 261                         XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
 262                         XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
 263                 }
 264         } else {*/
 265                 XWarpPointer(dpy, None, win,
 266                                          0, 0, 0, 0,
 267                                          vid.width / 2, vid.height / 2);
 268 /*      }*/
 269
 270         XGrabKeyboard(dpy, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 271
 272         mouse_active = true;
 273         mouse_x = mouse_y = 0;
 274
 275 //      XSync(dpy, True);
 276 }
 277
 278 static void uninstall_grabs(void)
 279 {
 280         if (!dpy || !win)
 281                 return;
 282
 283 /*      if (dgamouse) {
 284                 dgamouse = false;
 285                 XF86DGADirectVideo(dpy, DefaultScreen(dpy), 0);
 286         }*/
 287
 288         XUngrabPointer(dpy, CurrentTime);
 289         XUngrabKeyboard(dpy, CurrentTime);
 290
 291 // inviso cursor
 292         XUndefineCursor(dpy, win);
 293
 294         mouse_active = false;
 295 }
 296
 297 static void HandleEvents(void)
 298 {
 299         XEvent event;
 300 //      KeySym ks;
 301         int b;
 302         qboolean dowarp = false;
 303
 304         if (!dpy)
 305                 return;
 306
 307         while (XPending(dpy)) {
 308                 XNextEvent(dpy, &event);
 309
 310                 switch (event.type) {
 311                 case KeyPress:
 312                 case KeyRelease:
 313                         Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
 314                         break;
 315
 316                 case MotionNotify:
 317                         if (dgamouse) {
 318                                 mouse_x += event.xmotion.x_root/* * in_dga_mouseaccel.value*/;
 319                                 mouse_y += event.xmotion.y_root/* * in_dga_mouseaccel.value*/;
 320                         } else {
 321                                 if (!p_mouse_x && !p_mouse_y) {
 322                                         Con_Printf("event->xmotion.x: %d\n", event.xmotion.x);
 323                                         Con_Printf("event->xmotion.y: %d\n", event.xmotion.y);
 324                                 }
 325 /*                              if (vid_fullscreen.value || _windowed_mouse.value) {*/
 326                                         if (!event.xmotion.send_event) {
 327                                                 mouse_x += (event.xmotion.x - p_mouse_x);
 328                                                 mouse_y += (event.xmotion.y - p_mouse_y);
 329                                                 if (abs(vid.width/2 - event.xmotion.x) > vid.width / 4
 330                                                     || abs(vid.height/2 - event.xmotion.y) > vid.height / 4) {
 331                                                         dowarp = true;
 332                                                 }
 333                                         }
 334 /*                              } else {
 335                                         mouse_x += (event.xmotion.x - p_mouse_x);
 336                                         mouse_y += (event.xmotion.y - p_mouse_y);
 337                                 }*/
 338                                 p_mouse_x = event.xmotion.x;
 339                                 p_mouse_y = event.xmotion.y;
 340                         }
 341
 342 /*                      if (mouse_active) {
 343                                 if (dgamouse) {
 344                                         mouse_x += (event.xmotion.x + win_x) * 2;
 345                                         mouse_y += (event.xmotion.y + win_y) * 2;
 346                                 }
 347                                 else
 348                                 {
 349                                         mouse_x += ((int)event.xmotion.x - mwx) * 2;
 350                                         mouse_y += ((int)event.xmotion.y - mwy) * 2;
 351                                         mwx = event.xmotion.x;
 352                                         mwy = event.xmotion.y;
 353
 354                                         if (mouse_x || mouse_y)
 355                                                 dowarp = true;
 356                                 }
 357                         }*/
 358                         break;
 359
 360                 case ButtonPress:
 361                         b=-1;
 362                         if (event.xbutton.button == 1)
 363                                 b = 0;
 364                         else if (event.xbutton.button == 2)
 365                                 b = 2;
 366                         else if (event.xbutton.button == 3)
 367                                 b = 1;
 368                         if (b>=0)
 369                                 Key_Event(K_MOUSE1 + b, true);
 370                         break;
 371
 372                 case ButtonRelease:
 373                         b=-1;
 374                         if (event.xbutton.button == 1)
 375                                 b = 0;
 376                         else if (event.xbutton.button == 2)
 377                                 b = 2;
 378                         else if (event.xbutton.button == 3)
 379                                 b = 1;
 380                         if (b>=0)
 381                                 Key_Event(K_MOUSE1 + b, false);
 382                         break;
 383
 384                 case CreateNotify :
 385                         win_x = event.xcreatewindow.x;
 386                         win_y = event.xcreatewindow.y;
 387                         break;
 388
 389                 case ConfigureNotify :
 390                         win_x = event.xconfigure.x;
 391                         win_y = event.xconfigure.y;
 392                         break;
 393                 }
 394         }
 395
 396         if (dowarp) {
 397                 /* move the mouse to the window center again */
 398                 p_mouse_x = vid.width / 2;
 399                 p_mouse_y = vid.height / 2;
 400                 XWarpPointer(dpy, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
 401         }
 402
 403 }
 404
 405 static void IN_DeactivateMouse( void )
 406 {
 407         if (!mouse_avail || !dpy || !win)
 408                 return;
 409
 410         if (mouse_active) {
 411                 uninstall_grabs();
 412                 mouse_active = false;
 413         }
 414 }
 415
 416 static void IN_ActivateMouse( void )
 417 {
 418         if (!mouse_avail || !dpy || !win)
 419                 return;
 420
 421         if (!mouse_active) {
 422                 mouse_x = mouse_y = 0; // don't spazz
 423                 install_grabs();
 424                 mouse_active = true;
 425         }
 426 }
 427
 428
 429 void VID_Shutdown(void)
 430 {
 431         if (!ctx || !dpy)
 432                 return;
 433
 434         if (dpy) {
 435                 uninstall_grabs();
 436
 437                 if (ctx)
 438                         glXDestroyContext(dpy, ctx);
 439                 if (win)
 440                         XDestroyWindow(dpy, win);
 441                 if (vidmode_active)
 442                         XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[0]);
 443                 XCloseDisplay(dpy);
 444         }
 445         vidmode_active = false;
 446         dpy = NULL;
 447         win = 0;
 448         ctx = NULL;
 449 }
 450
 451 void signal_handler(int sig)
 452 {
 453         printf("Received signal %d, exiting...\n", sig);
 454         Sys_Quit();
 455         exit(0);
 456 }
 457
 458 void InitSig(void)
 459 {
 460         signal(SIGHUP, signal_handler);
 461         signal(SIGINT, signal_handler);
 462         signal(SIGQUIT, signal_handler);
 463         signal(SIGILL, signal_handler);
 464         signal(SIGTRAP, signal_handler);
 465         signal(SIGIOT, signal_handler);
 466         signal(SIGBUS, signal_handler);
 467         signal(SIGFPE, signal_handler);
 468         signal(SIGSEGV, signal_handler);
 469         signal(SIGTERM, signal_handler);
 470 }
 471
 472 void (*qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 473 void (*qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 474 void (*qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 475 void (*qglArrayElement)(GLint i);
 476 void (*qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
 477 void (*qglMTexCoord2f)(GLenum, GLfloat, GLfloat);
 478 void (*qglSelectTexture)(GLenum);
 479
 480 void VID_CheckVertexArrays (void)
 481 {
 482         void *prjobj;
 483         if (COM_CheckParm("-novertex"))
 484         {
 485                 Con_Printf("...vertex array support disabled\n");
 486                 return;
 487         }
 488         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 489         {
 490                 Con_Printf("Unable to open symbol list for main program.\n");
 491                 return;
 492         }
 493         qglMTexCoord2fSGIS = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
 494         if ((qglArrayElement = (void *) dlsym(prjobj, "glArrayElement"))
 495          && (qglColorPointer = (void *) dlsym(prjobj, "glColorPointer"))
 496 //       && (qglDrawArrays = (void *) dlsym(prjobj, "glDrawArrays"))
 497          && (qglDrawElements = (void *) dlsym(prjobj, "glDrawElements"))
 498 //       && (qglInterleavedArrays = (void *) dlsym(prjobj, "glInterleavedArrays"))
 499          && (qglTexCoordPointer = (void *) dlsym(prjobj, "glTexCoordPointer"))
 500          && (qglVertexPointer = (void *) dlsym(prjobj, "glVertexPointer"))
 501                 )
 502         {
 503                 Con_Printf("...vertex array support detected\n");
 504                 gl_arrays = true;
 505                 dlclose(prjobj);
 506                 return;
 507         }
 508
 509         Con_Printf("...vertex array support disabled (not detected - get a better driver)\n");
 510         dlclose(prjobj);
 511 }
 512
 513 void VID_CheckMultiTexture(void)
 514 {
 515         void *prjobj;
 516         qglMTexCoord2f = NULL;
 517         qglSelectTexture = NULL;
 518         // Check to see if multitexture is disabled
 519         if (COM_CheckParm("-nomtex"))
 520         {
 521                 Con_Printf("...multitexture disabled\n");
 522                 return;
 523         }
 524         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 525         {
 526                 Con_Printf("Unable to open symbol list for main program.\n");
 527                 return;
 528         }
 529         // Test for ARB_multitexture
 530         if (!COM_CheckParm("-SGISmtex") && strstr(gl_extensions, "GL_ARB_multitexture "))
 531         {
 532                 Con_Printf("...using GL_ARB_multitexture\n");
 533                 qglMTexCoord2f = (void *) dlsym(prjobj, "glMultiTexCoord2fARB");
 534                 qglSelectTexture = (void *) dlsym(prjobj, "glActiveTextureARB");
 535                 gl_mtexable = true;
 536                 gl_mtex_enum = GL_TEXTURE0_ARB;
 537         }
 538         else if (strstr(gl_extensions, "GL_SGIS_multitexture ")) // Test for SGIS_multitexture (if ARB_multitexture not found)
 539         {
 540                 Con_Printf("...using GL_SGIS_multitexture\n");
 541                 qglMTexCoord2f = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
 542                 qglSelectTexture = (void *) dlsym(prjobj, "glSelectTextureSGIS");
 543                 gl_mtexable = true;
 544                 gl_mtex_enum = TEXTURE0_SGIS;
 545         }
 546         if (!gl_mtexable)
 547                 Con_Printf("...multitexture disabled (not detected)\n");
 548         dlclose(prjobj);
 549 }
 550
 551 /*
 552 =================
 553 GL_BeginRendering
 554
 555 =================
 556 */
 557 void GL_BeginRendering (int *x, int *y, int *width, int *height)
 558 {
 559         *x = *y = 0;
 560         *width = scr_width;
 561         *height = scr_height;
 562
 563 //      glViewport (*x, *y, *width, *height);
 564 }
 565
 566
 567 void GL_EndRendering (void)
 568 {
 569         if (!r_render.value)
 570                 return;
 571         glFlush();
 572         glXSwapBuffers(dpy, win);
 573 }
 574
 575 void VID_Init()
 576 {
 577         int i;
 578         int attrib[] = {
 579                 GLX_RGBA,
 580                 GLX_RED_SIZE, 1,
 581                 GLX_GREEN_SIZE, 1,
 582                 GLX_BLUE_SIZE, 1,
 583                 GLX_DOUBLEBUFFER,
 584                 GLX_DEPTH_SIZE, 1,
 585                 None
 586         };
 587 //      char    gldir[MAX_OSPATH];
 588         int width = 640, height = 480;
 589         XSetWindowAttributes attr;
 590         unsigned long mask;
 591         Window root;
 592         XVisualInfo *visinfo;
 593         qboolean fullscreen = true;
 594         int MajorVersion, MinorVersion;
 595         int actualWidth, actualHeight;
 596
 597         Cvar_RegisterVariable (&vid_mode);
 598         Cvar_RegisterVariable (&in_mouse);
 599         Cvar_RegisterVariable (&in_dgamouse);
 600         Cvar_RegisterVariable (&m_filter);
 601
 602 // interpret command-line params
 603
 604 // set vid parameters
 605         if ((i = COM_CheckParm("-window")) != 0)
 606                 fullscreen = false;
 607
 608         if ((i = COM_CheckParm("-width")) != 0)
 609                 width = atoi(com_argv[i+1]);
 610
 611         if ((i = COM_CheckParm("-height")) != 0)
 612                 height = atoi(com_argv[i+1]);
 613
 614         if ((i = COM_CheckParm("-conwidth")) != 0)
 615                 vid.conwidth = atoi(com_argv[i+1]);
 616         else
 617                 vid.conwidth = 640;
 618
 619         vid.conwidth &= 0xfff8; // make it a multiple of eight
 620
 621         if (vid.conwidth < 320)
 622                 vid.conwidth = 320;
 623
 624         // pick a conheight that matches with correct aspect
 625         vid.conheight = vid.conwidth*3 / 4;
 626
 627         if ((i = COM_CheckParm("-conheight")) != 0)
 628                 vid.conheight = atoi(com_argv[i+1]);
 629         if (vid.conheight < 200)
 630                 vid.conheight = 200;
 631
 632         if (!(dpy = XOpenDisplay(NULL))) {
 633                 fprintf(stderr, "Error couldn't open the X display\n");
 634                 exit(1);
 635         }
 636
 637         scrnum = DefaultScreen(dpy);
 638         root = RootWindow(dpy, scrnum);
 639
 640         // Get video mode list
 641         MajorVersion = MinorVersion = 0;
 642         if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
 643                 vidmode_ext = false;
 644         } else {
 645                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 646                 vidmode_ext = true;
 647         }
 648
 649         visinfo = glXChooseVisual(dpy, scrnum, attrib);
 650         if (!visinfo) {
 651                 fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 652                 exit(1);
 653         }
 654
 655         if (vidmode_ext) {
 656                 int best_fit, best_dist, dist, x, y;
 657
 658                 XF86VidModeGetAllModeLines(dpy, scrnum, &num_vidmodes, &vidmodes);
 659
 660                 // Are we going fullscreen?  If so, let's change video mode
 661                 if (fullscreen) {
 662                         best_dist = 9999999;
 663                         best_fit = -1;
 664
 665                         for (i = 0; i < num_vidmodes; i++) {
 666                                 if (width > vidmodes[i]->hdisplay ||
 667                                         height > vidmodes[i]->vdisplay)
 668                                         continue;
 669
 670                                 x = width - vidmodes[i]->hdisplay;
 671                                 y = height - vidmodes[i]->vdisplay;
 672                                 dist = (x * x) + (y * y);
 673                                 if (dist < best_dist) {
 674                                         best_dist = dist;
 675                                         best_fit = i;
 676                                 }
 677                         }
 678
 679                         if (best_fit != -1) {
 680                                 actualWidth = vidmodes[best_fit]->hdisplay;
 681                                 actualHeight = vidmodes[best_fit]->vdisplay;
 682
 683                                 // change to the mode
 684                                 XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[best_fit]);
 685                                 vidmode_active = true;
 686
 687                                 // Move the viewport to top left
 688                                 XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
 689                         } else
 690                                 fullscreen = 0;
 691                 }
 692         }
 693
 694         /* window attributes */
 695         attr.background_pixel = 0;
 696         attr.border_pixel = 0;
 697         attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
 698         attr.event_mask = X_MASK;
 699         if (vidmode_active) {
 700                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore |
 701                         CWEventMask | CWOverrideRedirect;
 702                 attr.override_redirect = True;
 703                 attr.backing_store = NotUseful;
 704                 attr.save_under = False;
 705         } else
 706                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 707
 708         win = XCreateWindow(dpy, root, 0, 0, width, height,
 709                                                 0, visinfo->depth, InputOutput,
 710                                                 visinfo->visual, mask, &attr);
 711         XMapWindow(dpy, win);
 712
 713         if (vidmode_active) {
 714                 XMoveWindow(dpy, win, 0, 0);
 715                 XRaiseWindow(dpy, win);
 716                 XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
 717                 XFlush(dpy);
 718                 // Move the viewport to top left
 719                 XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
 720         }
 721
 722         XFlush(dpy);
 723
 724         ctx = glXCreateContext(dpy, visinfo, NULL, True);
 725
 726         glXMakeCurrent(dpy, win, ctx);
 727
 728         scr_width = width;
 729         scr_height = height;
 730
 731         if (vid.conheight > height)
 732                 vid.conheight = height;
 733         if (vid.conwidth > width)
 734                 vid.conwidth = width;
 735         vid.width = vid.conwidth;
 736         vid.height = vid.conheight;
 737
 738         vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
 739
 740         InitSig(); // trap evil signals
 741
 742         GL_Init();
 743
 744         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 745
 746         vid.recalc_refdef = 1;                          // force a surface cache flush
 747
 748         install_grabs();
 749 }
 750
 751 void Sys_SendKeyEvents(void)
 752 {
 753         HandleEvents();
 754 }
 755
 756 void Force_CenterView_f (void)
 757 {
 758         cl.viewangles[PITCH] = 0;
 759 }
 760
 761 void IN_Init(void)
 762 {
 763 }
 764
 765 void IN_Shutdown(void)
 766 {
 767 }
 768
 769 /*
 770 ===========
 771 IN_Commands
 772 ===========
 773 */
 774 void IN_Commands (void)
 775 {
 776         if (!dpy || !win)
 777                 return;
 778
 779         if (vidmode_active || key_dest == key_game)
 780                 IN_ActivateMouse();
 781         else
 782                 IN_DeactivateMouse ();
 783 }
 784
 785 /*
 786 ===========
 787 IN_Move
 788 ===========
 789 */
 790 void IN_MouseMove (usercmd_t *cmd)
 791 {
 792         if (!mouse_avail)
 793                 return;
 794
 795         if (!mouse_avail)
 796                 return;
 797
 798         if (m_filter.value) {
 799                 mouse_x = (mouse_x + old_mouse_x) * 0.5;
 800                 mouse_y = (mouse_y + old_mouse_y) * 0.5;
 801
 802                 old_mouse_x = mouse_x;
 803                 old_mouse_y = mouse_y;
 804         }
 805
 806         mouse_x *= sensitivity.value;
 807         mouse_y *= sensitivity.value;
 808
 809         if (in_strafe.state & 1)
 810                 cmd->sidemove += m_side.value * mouse_x;
 811         else
 812                 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
 813
 814 /*        if (freelook)*/
 815                 V_StopPitchDrift ();
 816
 817         if (/*freelook && */!(in_strafe.state & 1)) {
 818                 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
 819                 cl.viewangles[PITCH] = bound (-70, cl.viewangles[PITCH], 80);
 820         } else {
 821                 if ((in_strafe.state & 1) && noclip_anglehack)
 822                         cmd->upmove -= m_forward.value * mouse_y;
 823                 else
 824                         cmd->forwardmove -= m_forward.value * mouse_y;
 825         }
 826         mouse_x = mouse_y = 0.0;
 827 }
 828
 829 void IN_Move (usercmd_t *cmd)
 830 {
 831         IN_MouseMove(cmd);
 832 }
 833
 834