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 #define WARP_WIDTH              320
  41 #define WARP_HEIGHT             200
  42
  43 static Display *dpy = NULL;
  44 static int scrnum;
  45 static Window win;
  46 static GLXContext ctx = NULL;
  47
  48 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
  49 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
  50                     PointerMotionMask | ButtonMotionMask )
  51 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
  52
  53
  54 unsigned short  d_8to16table[256];
  55 unsigned                d_8to24table[256];
  56 unsigned char   d_15to8table[65536];
  57
  58 cvar_t  vid_mode = {"vid_mode","0",false};
  59
  60 viddef_t        vid;                            // global video state
  61
  62 static qboolean        mouse_avail;
  63 static qboolean        mouse_active;
  64 static int   mx, my;
  65 static int      old_mouse_x, old_mouse_y;
  66
  67 static cvar_t in_mouse = {"in_mouse", "1", false};
  68 static cvar_t in_dgamouse = {"in_dgamouse", "1", false};
  69 static cvar_t m_filter = {"m_filter", "0"};
  70
  71 qboolean dgamouse = false;
  72 qboolean vidmode_ext = false;
  73
  74 static int win_x, win_y;
  75
  76 static int scr_width, scr_height;
  77
  78 static XF86VidModeModeInfo **vidmodes;
  79 //static int default_dotclock_vidmode;
  80 static int num_vidmodes;
  81 static qboolean vidmode_active = false;
  82
  83 /*-----------------------------------------------------------------------*/
  84
  85 //int           texture_mode = GL_NEAREST;
  86 //int           texture_mode = GL_NEAREST_MIPMAP_NEAREST;
  87 //int           texture_mode = GL_NEAREST_MIPMAP_LINEAR;
  88 int             texture_mode = GL_LINEAR;
  89 //int           texture_mode = GL_LINEAR_MIPMAP_NEAREST;
  90 //int           texture_mode = GL_LINEAR_MIPMAP_LINEAR;
  91
  92 int             texture_extension_number = 1;
  93
  94 float           gldepthmin, gldepthmax;
  95
  96 const char *gl_vendor;
  97 const char *gl_renderer;
  98 const char *gl_version;
  99 const char *gl_extensions;
 100
 101 void (*qglColorTableEXT) (int, int, int, int, int, const void*);
 102 void (*qgl3DfxSetPaletteEXT) (GLuint *);
 103 void (*qglMTexCoord2f) (GLenum, GLfloat, GLfloat);
 104 void (*qglSelectTexture) (GLenum);
 105
 106 //static float vid_gamma = 1.0;
 107
 108 // LordHavoc: ARB multitexture support
 109 int gl_mtex_enum = 0;
 110
 111 // LordHavoc: in GLX these are never set, simply provided to make the rest of the code work
 112 qboolean is8bit = false;
 113 qboolean isPermedia = false;
 114 qboolean isATI = false;
 115 qboolean isG200 = false;
 116 qboolean isRagePro = false;
 117 qboolean gl_mtexable = false;
 118 qboolean gl_arrays = false;
 119
 120 /*-----------------------------------------------------------------------*/
 121 void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
 122 {
 123 }
 124
 125 void D_EndDirectRect (int x, int y, int width, int height)
 126 {
 127 }
 128
 129 static int XLateKey(XKeyEvent *ev)
 130 {
 131
 132         int key;
 133         char buf[64];
 134         KeySym keysym;
 135
 136         key = 0;
 137
 138         XLookupString(ev, buf, sizeof buf, &keysym, 0);
 139
 140         switch(keysym)
 141         {
 142                 case XK_KP_Page_Up:
 143                 case XK_Page_Up:         key = K_PGUP; break;
 144
 145                 case XK_KP_Page_Down:
 146                 case XK_Page_Down:       key = K_PGDN; break;
 147
 148                 case XK_KP_Home:
 149                 case XK_Home:    key = K_HOME; break;
 150
 151                 case XK_KP_End:
 152                 case XK_End:     key = K_END; break;
 153
 154                 case XK_KP_Left:
 155                 case XK_Left:    key = K_LEFTARROW; break;
 156
 157                 case XK_KP_Right:
 158                 case XK_Right:  key = K_RIGHTARROW;             break;
 159
 160                 case XK_KP_Down:
 161                 case XK_Down:    key = K_DOWNARROW; break;
 162
 163                 case XK_KP_Up:
 164                 case XK_Up:              key = K_UPARROW;        break;
 165
 166                 case XK_Escape: key = K_ESCAPE;         break;
 167
 168                 case XK_KP_Enter:
 169                 case XK_Return: key = K_ENTER;           break;
 170
 171                 case XK_Tab:            key = K_TAB;                     break;
 172
 173                 case XK_F1:              key = K_F1;                            break;
 174
 175                 case XK_F2:              key = K_F2;                            break;
 176
 177                 case XK_F3:              key = K_F3;                            break;
 178
 179                 case XK_F4:              key = K_F4;                            break;
 180
 181                 case XK_F5:              key = K_F5;                            break;
 182
 183                 case XK_F6:              key = K_F6;                            break;
 184
 185                 case XK_F7:              key = K_F7;                            break;
 186
 187                 case XK_F8:              key = K_F8;                            break;
 188
 189                 case XK_F9:              key = K_F9;                            break;
 190
 191                 case XK_F10:            key = K_F10;                     break;
 192
 193                 case XK_F11:            key = K_F11;                     break;
 194
 195                 case XK_F12:            key = K_F12;                     break;
 196
 197                 case XK_BackSpace: key = K_BACKSPACE; break;
 198
 199                 case XK_KP_Delete:
 200                 case XK_Delete: key = K_DEL; break;
 201
 202                 case XK_Pause:  key = K_PAUSE;           break;
 203
 204                 case XK_Shift_L:
 205                 case XK_Shift_R:        key = K_SHIFT;          break;
 206
 207                 case XK_Execute:
 208                 case XK_Control_L:
 209                 case XK_Control_R:      key = K_CTRL;            break;
 210
 211                 case XK_Alt_L:
 212                 case XK_Meta_L:
 213                 case XK_Alt_R:
 214                 case XK_Meta_R: key = K_ALT;                    break;
 215
 216                 case XK_KP_Begin: key = '5';    break;
 217
 218                 case XK_KP_Insert:
 219                 case XK_Insert:key = K_INS; break;
 220
 221                 case XK_KP_Multiply: key = '*'; break;
 222                 case XK_KP_Add:  key = '+'; break;
 223                 case XK_KP_Subtract: key = '-'; break;
 224                 case XK_KP_Divide: key = '/'; break;
 225
 226 #if 0
 227                 case 0x021: key = '1';break;/* [!] */
 228                 case 0x040: key = '2';break;/* [@] */
 229                 case 0x023: key = '3';break;/* [#] */
 230                 case 0x024: key = '4';break;/* [$] */
 231                 case 0x025: key = '5';break;/* [%] */
 232                 case 0x05e: key = '6';break;/* [^] */
 233                 case 0x026: key = '7';break;/* [&] */
 234                 case 0x02a: key = '8';break;/* [*] */
 235                 case 0x028: key = '9';;break;/* [(] */
 236                 case 0x029: key = '0';break;/* [)] */
 237                 case 0x05f: key = '-';break;/* [_] */
 238                 case 0x02b: key = '=';break;/* [+] */
 239                 case 0x07c: key = '\'';break;/* [|] */
 240                 case 0x07d: key = '[';break;/* [}] */
 241                 case 0x07b: key = ']';break;/* [{] */
 242                 case 0x022: key = '\'';break;/* ["] */
 243                 case 0x03a: key = ';';break;/* [:] */
 244                 case 0x03f: key = '/';break;/* [?] */
 245                 case 0x03e: key = '.';break;/* [>] */
 246                 case 0x03c: key = ',';break;/* [<] */
 247 #endif
 248
 249                 default:
 250                         key = *(unsigned char*)buf;
 251                         if (key >= 'A' && key <= 'Z')
 252                                 key = key - 'A' + 'a';
 253                         break;
 254         }
 255
 256         return key;
 257 }
 258
 259 static Cursor CreateNullCursor(Display *display, Window root)
 260 {
 261     Pixmap cursormask;
 262     XGCValues xgc;
 263     GC gc;
 264     XColor dummycolour;
 265     Cursor cursor;
 266
 267     cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
 268     xgc.function = GXclear;
 269     gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
 270     XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
 271     dummycolour.pixel = 0;
 272     dummycolour.red = 0;
 273     dummycolour.flags = 04;
 274     cursor = XCreatePixmapCursor(display, cursormask, cursormask,
 275           &dummycolour,&dummycolour, 0,0);
 276     XFreePixmap(display,cursormask);
 277     XFreeGC(display,gc);
 278     return cursor;
 279 }
 280
 281 static void install_grabs(void)
 282 {
 283
 284 // inviso cursor
 285         XDefineCursor(dpy, win, CreateNullCursor(dpy, win));
 286
 287         XGrabPointer(dpy, win,
 288                                  True,
 289                                  0,
 290                                  GrabModeAsync, GrabModeAsync,
 291                                  win,
 292                                  None,
 293                                  CurrentTime);
 294
 295         if (in_dgamouse.value) {
 296                 int MajorVersion, MinorVersion;
 297
 298                 if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
 299                         // unable to query, probalby not supported
 300                         Con_Printf( "Failed to detect XF86DGA Mouse\n" );
 301                         in_dgamouse.value = 0;
 302                 } else {
 303                         dgamouse = true;
 304                         XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
 305                         XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
 306                 }
 307         } else {
 308                 XWarpPointer(dpy, None, win,
 309                                          0, 0, 0, 0,
 310                                          vid.width / 2, vid.height / 2);
 311         }
 312
 313         XGrabKeyboard(dpy, win,
 314                                   False,
 315                                   GrabModeAsync, GrabModeAsync,
 316                                   CurrentTime);
 317
 318         mouse_active = true;
 319
 320 //      XSync(dpy, True);
 321 }
 322
 323 static void uninstall_grabs(void)
 324 {
 325         if (!dpy || !win)
 326                 return;
 327
 328         if (dgamouse) {
 329                 dgamouse = false;
 330                 XF86DGADirectVideo(dpy, DefaultScreen(dpy), 0);
 331         }
 332
 333         XUngrabPointer(dpy, CurrentTime);
 334         XUngrabKeyboard(dpy, CurrentTime);
 335
 336 // inviso cursor
 337         XUndefineCursor(dpy, win);
 338
 339         mouse_active = false;
 340 }
 341
 342 static void HandleEvents(void)
 343 {
 344         XEvent event;
 345 //      KeySym ks;
 346         int b;
 347         qboolean dowarp = false;
 348         int mwx = vid.width/2;
 349         int mwy = vid.height/2;
 350
 351         if (!dpy)
 352                 return;
 353
 354         while (XPending(dpy)) {
 355                 XNextEvent(dpy, &event);
 356
 357                 switch (event.type) {
 358                 case KeyPress:
 359                 case KeyRelease:
 360                         Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
 361                         break;
 362
 363                 case MotionNotify:
 364                         if (mouse_active) {
 365                                 if (dgamouse) {
 366                                         mx += (event.xmotion.x + win_x) * 2;
 367                                         my += (event.xmotion.y + win_y) * 2;
 368                                 }
 369                                 else
 370                                 {
 371                                         mx += ((int)event.xmotion.x - mwx) * 2;
 372                                         my += ((int)event.xmotion.y - mwy) * 2;
 373                                         mwx = event.xmotion.x;
 374                                         mwy = event.xmotion.y;
 375
 376                                         if (mx || my)
 377                                                 dowarp = true;
 378                                 }
 379                         }
 380                         break;
 381
 382                         break;
 383
 384                 case ButtonPress:
 385                         b=-1;
 386                         if (event.xbutton.button == 1)
 387                                 b = 0;
 388                         else if (event.xbutton.button == 2)
 389                                 b = 2;
 390                         else if (event.xbutton.button == 3)
 391                                 b = 1;
 392                         if (b>=0)
 393                                 Key_Event(K_MOUSE1 + b, true);
 394                         break;
 395
 396                 case ButtonRelease:
 397                         b=-1;
 398                         if (event.xbutton.button == 1)
 399                                 b = 0;
 400                         else if (event.xbutton.button == 2)
 401                                 b = 2;
 402                         else if (event.xbutton.button == 3)
 403                                 b = 1;
 404                         if (b>=0)
 405                                 Key_Event(K_MOUSE1 + b, false);
 406                         break;
 407
 408                 case CreateNotify :
 409                         win_x = event.xcreatewindow.x;
 410                         win_y = event.xcreatewindow.y;
 411                         break;
 412
 413                 case ConfigureNotify :
 414                         win_x = event.xconfigure.x;
 415                         win_y = event.xconfigure.y;
 416                         break;
 417                 }
 418         }
 419
 420         if (dowarp) {
 421                 /* move the mouse to the window center again */
 422                 XWarpPointer(dpy, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 423         }
 424
 425 }
 426
 427 static void IN_DeactivateMouse( void )
 428 {
 429         if (!mouse_avail || !dpy || !win)
 430                 return;
 431
 432         if (mouse_active) {
 433                 uninstall_grabs();
 434                 mouse_active = false;
 435         }
 436 }
 437
 438 static void IN_ActivateMouse( void )
 439 {
 440         if (!mouse_avail || !dpy || !win)
 441                 return;
 442
 443         if (!mouse_active) {
 444                 mx = my = 0; // don't spazz
 445                 install_grabs();
 446                 mouse_active = true;
 447         }
 448 }
 449
 450
 451 void VID_Shutdown(void)
 452 {
 453         if (!ctx || !dpy)
 454                 return;
 455         IN_DeactivateMouse();
 456         if (dpy) {
 457                 if (ctx)
 458                         glXDestroyContext(dpy, ctx);
 459                 if (win)
 460                         XDestroyWindow(dpy, win);
 461                 if (vidmode_active)
 462                         XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[0]);
 463                 XCloseDisplay(dpy);
 464         }
 465         vidmode_active = false;
 466         dpy = NULL;
 467         win = 0;
 468         ctx = NULL;
 469 }
 470
 471 void signal_handler(int sig)
 472 {
 473         printf("Received signal %d, exiting...\n", sig);
 474         Sys_Quit();
 475         exit(0);
 476 }
 477
 478 void InitSig(void)
 479 {
 480         signal(SIGHUP, signal_handler);
 481         signal(SIGINT, signal_handler);
 482         signal(SIGQUIT, signal_handler);
 483         signal(SIGILL, signal_handler);
 484         signal(SIGTRAP, signal_handler);
 485         signal(SIGIOT, signal_handler);
 486         signal(SIGBUS, signal_handler);
 487         signal(SIGFPE, signal_handler);
 488         signal(SIGSEGV, signal_handler);
 489         signal(SIGTERM, signal_handler);
 490 }
 491
 492 /*
 493 void (*qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 494 void (*qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 495 void (*qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 496 void (*qglArrayElement)(GLint i);
 497 void (*qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
 498 void (*qglMTexCoord2f)(GLenum, GLfloat, GLfloat);
 499 void (*qglSelectTexture)(GLenum);
 500 void (*glColorTableEXT)(int, int, int, int, int, const void*);
 501
 502 void CheckVertexArrays (void)
 503 {
 504         void *prjobj;
 505         if (COM_CheckParm("-novertex"))
 506         {
 507                 Con_Printf("...vertex array support disabled\n");
 508                 return;
 509         }
 510         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 511         {
 512                 Con_Printf("Unable to open symbol list for main program.\n");
 513                 return;
 514         }
 515         qglMTexCoord2fSGIS = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
 516         if ((qglArrayElement = (void *) dlsym(prjobj, "glArrayElement"))
 517          && (qglColorPointer = (void *) dlsym(prjobj, "glColorPointer"))
 518 //       && (qglDrawArrays = (void *) dlsym(prjobj, "glDrawArrays"))
 519          && (qglDrawElements = (void *) dlsym(prjobj, "glDrawElements"))
 520 //       && (qglInterleavedArrays = (void *) dlsym(prjobj, "glInterleavedArrays"))
 521          && (qglTexCoordPointer = (void *) dlsym(prjobj, "glTexCoordPointer"))
 522          && (qglVertexPointer = (void *) dlsym(prjobj, "glVertexPointer"))
 523                 )
 524         {
 525                 Con_Printf("...vertex array support detected\n");
 526                 gl_arrays = true;
 527                 dlclose(prjobj);
 528                 return;
 529         }
 530
 531         Con_Printf("...vertex array support disabled (not detected - get a better driver)\n");
 532         dlclose(prjobj);
 533 }
 534 */
 535
 536 void CheckMultiTexture(void)
 537 {
 538         void *prjobj;
 539         qglMTexCoord2f = NULL;
 540         qglSelectTexture = NULL;
 541         // Check to see if multitexture is disabled
 542         if (COM_CheckParm("-nomtex"))
 543         {
 544                 Con_Printf("...multitexture disabled\n");
 545                 return;
 546         }
 547         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 548         {
 549                 Con_Printf("Unable to open symbol list for main program.\n");
 550                 return;
 551         }
 552         // Test for ARB_multitexture
 553         if (!COM_CheckParm("-SGISmtex") && strstr(gl_extensions, "GL_ARB_multitexture "))
 554         {
 555                 Con_Printf("...using GL_ARB_multitexture\n");
 556                 qglMTexCoord2f = (void *) dlsym(prjobj, "glMultiTexCoord2fARB");
 557                 qglSelectTexture = (void *) dlsym(prjobj, "glActiveTextureARB");
 558                 gl_mtexable = true;
 559                 gl_mtex_enum = GL_TEXTURE0_ARB;
 560         }
 561         else if (strstr(gl_extensions, "GL_SGIS_multitexture ")) // Test for SGIS_multitexture (if ARB_multitexture not found)
 562         {
 563                 Con_Printf("...using GL_SGIS_multitexture\n");
 564                 qglMTexCoord2f = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
 565                 qglSelectTexture = (void *) dlsym(prjobj, "glSelectTextureSGIS");
 566                 gl_mtexable = true;
 567                 gl_mtex_enum = TEXTURE0_SGIS;
 568         }
 569         if (!gl_mtexable)
 570                 Con_Printf("...multitexture disabled (not detected)\n");
 571         dlclose(prjobj);
 572 }
 573
 574 /*
 575 ===============
 576 GL_Init
 577 ===============
 578 */
 579 extern char *QSG_EXTENSIONS;
 580 void GL_Init (void)
 581 {
 582         gl_vendor = glGetString (GL_VENDOR);
 583         Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
 584         gl_renderer = glGetString (GL_RENDERER);
 585         Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
 586
 587         gl_version = glGetString (GL_VERSION);
 588         Con_Printf ("GL_VERSION: %s\n", gl_version);
 589         gl_extensions = glGetString (GL_EXTENSIONS);
 590         Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
 591
 592 //      Con_Printf ("%s %s\n", gl_renderer, gl_version);
 593
 594         CheckMultiTexture();
 595 //      CheckVertexArrays();
 596
 597         // LordHavoc: report supported extensions
 598         Con_Printf ("\nQSG extensions: %s\n", QSG_EXTENSIONS);
 599
 600         glCullFace(GL_FRONT);
 601         glAlphaFunc(GL_GREATER, 0.5);
 602 }
 603
 604 /*
 605 =================
 606 GL_BeginRendering
 607
 608 =================
 609 */
 610 void GL_BeginRendering (int *x, int *y, int *width, int *height)
 611 {
 612         *x = *y = 0;
 613         *width = scr_width;
 614         *height = scr_height;
 615
 616 //    if (!wglMakeCurrent( maindc, baseRC ))
 617 //              Sys_Error ("wglMakeCurrent failed");
 618
 619 //      glViewport (*x, *y, *width, *height);
 620 }
 621
 622
 623 void GL_EndRendering (void)
 624 {
 625         if (!r_render.value)
 626                 return;
 627         glFlush();
 628         glXSwapBuffers(dpy, win);
 629 }
 630
 631 qboolean VID_Is8bit(void)
 632 {
 633         return is8bit;
 634 }
 635
 636 void VID_Init8bitPalette(void)
 637 {
 638         // Check for 8bit Extensions and initialize them.
 639         int i;
 640         void *prjobj;
 641
 642         if (!COM_CheckParm("-8bit"))
 643                 return;
 644         if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
 645         {
 646                 Con_Printf("Unable to open symbol list for main program.\n");
 647                 return;
 648         }
 649
 650         if (strstr(gl_extensions, "3DFX_set_global_palette") && (qgl3DfxSetPaletteEXT = dlsym(prjobj, "gl3DfxSetPaletteEXT")) != NULL)
 651         {
 652                 GLubyte table[256][4];
 653                 char *oldpal;
 654
 655                 Con_SafePrintf("8-bit GL extensions enabled.\n");
 656                 glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
 657                 oldpal = (char *) d_8to24table; //d_8to24table3dfx;
 658                 for (i=0;i<256;i++)
 659                 {
 660                         table[i][2] = *oldpal++;
 661                         table[i][1] = *oldpal++;
 662                         table[i][0] = *oldpal++;
 663                         table[i][3] = 255;
 664                         oldpal++;
 665                 }
 666                 qgl3DfxSetPaletteEXT((GLuint *)table);
 667                 is8bit = true;
 668
 669         }
 670         else if (strstr(gl_extensions, "GL_EXT_shared_texture_palette") && (qglColorTableEXT = dlsym(prjobj, "glColorTableEXT")) != NULL)
 671         {
 672                 char thePalette[256*3];
 673                 char *oldPalette, *newPalette;
 674
 675                 Con_SafePrintf("8-bit GL extensions enabled.\n");
 676                 glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
 677                 oldPalette = (char *) d_8to24table; //d_8to24table3dfx;
 678                 newPalette = thePalette;
 679                 for (i=0;i<256;i++)
 680                 {
 681                         *newPalette++ = *oldPalette++;
 682                         *newPalette++ = *oldPalette++;
 683                         *newPalette++ = *oldPalette++;
 684                         oldPalette++;
 685                 }
 686                 qglColorTableEXT(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
 687                 is8bit = true;
 688         }
 689
 690         dlclose(prjobj);
 691 }
 692
 693 extern void Check_Gamma (unsigned char *pal);
 694 void VID_Setup15to8Palette ();
 695
 696 void VID_Init(unsigned char *palette)
 697 {
 698         int i;
 699         int attrib[] = {
 700                 GLX_RGBA,
 701                 GLX_RED_SIZE, 1,
 702                 GLX_GREEN_SIZE, 1,
 703                 GLX_BLUE_SIZE, 1,
 704                 GLX_DOUBLEBUFFER,
 705                 GLX_DEPTH_SIZE, 1,
 706                 None
 707         };
 708 //      char    gldir[MAX_OSPATH];
 709         int width = 640, height = 480;
 710         XSetWindowAttributes attr;
 711         unsigned long mask;
 712         Window root;
 713         XVisualInfo *visinfo;
 714         qboolean fullscreen = true;
 715         int MajorVersion, MinorVersion;
 716         int actualWidth, actualHeight;
 717
 718         Cvar_RegisterVariable (&vid_mode);
 719         Cvar_RegisterVariable (&in_mouse);
 720         Cvar_RegisterVariable (&in_dgamouse);
 721         Cvar_RegisterVariable (&m_filter);
 722
 723 // interpret command-line params
 724
 725 // set vid parameters
 726         if ((i = COM_CheckParm("-window")) != 0)
 727                 fullscreen = false;
 728
 729         if ((i = COM_CheckParm("-width")) != 0)
 730                 width = atoi(com_argv[i+1]);
 731
 732         if ((i = COM_CheckParm("-height")) != 0)
 733                 height = atoi(com_argv[i+1]);
 734
 735         if ((i = COM_CheckParm("-conwidth")) != 0)
 736                 vid.conwidth = atoi(com_argv[i+1]);
 737         else
 738                 vid.conwidth = 640;
 739
 740         vid.conwidth &= 0xfff8; // make it a multiple of eight
 741
 742         if (vid.conwidth < 320)
 743                 vid.conwidth = 320;
 744
 745         // pick a conheight that matches with correct aspect
 746         vid.conheight = vid.conwidth*3 / 4;
 747
 748         if ((i = COM_CheckParm("-conheight")) != 0)
 749                 vid.conheight = atoi(com_argv[i+1]);
 750         if (vid.conheight < 200)
 751                 vid.conheight = 200;
 752
 753         if (!(dpy = XOpenDisplay(NULL))) {
 754                 fprintf(stderr, "Error couldn't open the X display\n");
 755                 exit(1);
 756         }
 757
 758         scrnum = DefaultScreen(dpy);
 759         root = RootWindow(dpy, scrnum);
 760
 761         // Get video mode list
 762         MajorVersion = MinorVersion = 0;
 763         if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
 764                 vidmode_ext = false;
 765         } else {
 766                 Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
 767                 vidmode_ext = true;
 768         }
 769
 770         visinfo = glXChooseVisual(dpy, scrnum, attrib);
 771         if (!visinfo) {
 772                 fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
 773                 exit(1);
 774         }
 775
 776         if (vidmode_ext) {
 777                 int best_fit, best_dist, dist, x, y;
 778
 779                 XF86VidModeGetAllModeLines(dpy, scrnum, &num_vidmodes, &vidmodes);
 780
 781                 // Are we going fullscreen?  If so, let's change video mode
 782                 if (fullscreen) {
 783                         best_dist = 9999999;
 784                         best_fit = -1;
 785
 786                         for (i = 0; i < num_vidmodes; i++) {
 787                                 if (width > vidmodes[i]->hdisplay ||
 788                                         height > vidmodes[i]->vdisplay)
 789                                         continue;
 790
 791                                 x = width - vidmodes[i]->hdisplay;
 792                                 y = height - vidmodes[i]->vdisplay;
 793                                 dist = (x * x) + (y * y);
 794                                 if (dist < best_dist) {
 795                                         best_dist = dist;
 796                                         best_fit = i;
 797                                 }
 798                         }
 799
 800                         if (best_fit != -1) {
 801                                 actualWidth = vidmodes[best_fit]->hdisplay;
 802                                 actualHeight = vidmodes[best_fit]->vdisplay;
 803
 804                                 // change to the mode
 805                                 XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[best_fit]);
 806                                 vidmode_active = true;
 807
 808                                 // Move the viewport to top left
 809                                 XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
 810                         } else
 811                                 fullscreen = 0;
 812                 }
 813         }
 814
 815         /* window attributes */
 816         attr.background_pixel = 0;
 817         attr.border_pixel = 0;
 818         attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
 819         attr.event_mask = X_MASK;
 820         if (vidmode_active) {
 821                 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore |
 822                         CWEventMask | CWOverrideRedirect;
 823                 attr.override_redirect = True;
 824                 attr.backing_store = NotUseful;
 825                 attr.save_under = False;
 826         } else
 827                 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 828
 829         win = XCreateWindow(dpy, root, 0, 0, width, height,
 830                                                 0, visinfo->depth, InputOutput,
 831                                                 visinfo->visual, mask, &attr);
 832         XMapWindow(dpy, win);
 833
 834         if (vidmode_active) {
 835                 XMoveWindow(dpy, win, 0, 0);
 836                 XRaiseWindow(dpy, win);
 837                 XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
 838                 XFlush(dpy);
 839                 // Move the viewport to top left
 840                 XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
 841         }
 842
 843         XFlush(dpy);
 844
 845         ctx = glXCreateContext(dpy, visinfo, NULL, True);
 846
 847         glXMakeCurrent(dpy, win, ctx);
 848
 849         scr_width = width;
 850         scr_height = height;
 851
 852         if (vid.conheight > height)
 853                 vid.conheight = height;
 854         if (vid.conwidth > width)
 855                 vid.conwidth = width;
 856         vid.width = vid.conwidth;
 857         vid.height = vid.conheight;
 858
 859         vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
 860
 861         InitSig(); // trap evil signals
 862
 863         GL_Init();
 864
 865 //      sprintf (gldir, "%s/glquake", com_gamedir);
 866 //      Sys_mkdir (gldir);
 867
 868         VID_SetPalette(palette);
 869
 870         Check_Gamma(palette);
 871
 872         VID_Init8bitPalette();
 873
 874         if (is8bit) // LordHavoc: avoid calculating 15to8 table if it won't be used
 875                 VID_Setup15to8Palette ();
 876
 877         Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
 878
 879         vid.recalc_refdef = 1;                          // force a surface cache flush
 880 }
 881
 882 void Sys_SendKeyEvents(void)
 883 {
 884         HandleEvents();
 885 }
 886
 887 void Force_CenterView_f (void)
 888 {
 889         cl.viewangles[PITCH] = 0;
 890 }
 891
 892 void IN_Init(void)
 893 {
 894 }
 895
 896 void IN_Shutdown(void)
 897 {
 898 }
 899
 900 /*
 901 ===========
 902 IN_Commands
 903 ===========
 904 */
 905 void IN_Commands (void)
 906 {
 907         if (!dpy || !win)
 908                 return;
 909
 910         if (vidmode_active || key_dest == key_game)
 911                 IN_ActivateMouse();
 912         else
 913                 IN_DeactivateMouse ();
 914 }
 915
 916 /*
 917 ===========
 918 IN_Move
 919 ===========
 920 */
 921 void IN_MouseMove (usercmd_t *cmd)
 922 {
 923         if (!mouse_avail)
 924                 return;
 925
 926         if (m_filter.value)
 927         {
 928                 mx = (mx + old_mouse_x) * 0.5;
 929                 my = (my + old_mouse_y) * 0.5;
 930         }
 931         old_mouse_x = mx;
 932         old_mouse_y = my;
 933
 934         mx *= sensitivity.value;
 935         my *= sensitivity.value;
 936
 937 // add mouse X/Y movement to cmd
 938         if ( (in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1) ))
 939                 cmd->sidemove += m_side.value * mx;
 940         else
 941                 cl.viewangles[YAW] -= m_yaw.value * mx;
 942
 943         if (in_mlook.state & 1)
 944                 V_StopPitchDrift ();
 945
 946         if ( (in_mlook.state & 1) && !(in_strafe.state & 1))
 947         {
 948                 cl.viewangles[PITCH] += m_pitch.value * my;
 949                 if (cl.viewangles[PITCH] > 80)
 950                         cl.viewangles[PITCH] = 80;
 951                 if (cl.viewangles[PITCH] < -70)
 952                         cl.viewangles[PITCH] = -70;
 953         }
 954         else
 955         {
 956                 if ((in_strafe.state & 1) && noclip_anglehack)
 957                         cmd->upmove -= m_forward.value * my;
 958                 else
 959                         cmd->forwardmove -= m_forward.value * my;
 960         }
 961         mx = my = 0;
 962 }
 963
 964 void IN_Move (usercmd_t *cmd)
 965 {
 966         IN_MouseMove(cmd);
 967 }
 968
 969