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