Simulator/Cockpit/hud.cxx

   1 // hud.cxx -- hud defines and prototypes
   2 //
   3 // Written by Michele America, started September 1997.
   4 //
   5 // Copyright (C) 1997  Michele F. America  - micheleamerica@geocities.com
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License as
   9 // published by the Free Software Foundation; either version 2 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 //
  21 // $Id$
  22 // (Log is kept at end of this file)
  23
  24
  25 #ifdef HAVE_CONFIG_H
  26 #  include <config.h>
  27 #endif
  28
  29 #ifdef HAVE_WINDOWS_H
  30 #  include <windows.h>
  31 #endif
  32
  33 #ifdef __BORLANDC__
  34 #  define exception c_exception
  35 #endif
  36 #include <math.h>
  37
  38 #include <GL/glut.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41
  42 #include <Aircraft/aircraft.hxx>
  43 #include <Debug/logstream.hxx>
  44 #include <Include/fg_constants.h>
  45 #include <Main/options.hxx>
  46 #include <Math/fg_random.h>
  47 #include <Math/mat3.h>
  48 #include <Math/polar3d.hxx>
  49 #include <Scenery/scenery.hxx>
  50 #include <Time/fg_timer.hxx>
  51
  52 #if defined ( __sun__ ) || defined ( __sgi )
  53 extern "C" {
  54   extern void *memmove(void *, const void *, size_t);
  55 }
  56 #endif
  57
  58 #include "hud.hxx"
  59
  60
  61 static char units[5];
  62
  63 // The following routines obtain information concerntin the aircraft's
  64 // current state and return it to calling instrument display routines.
  65 // They should eventually be member functions of the aircraft.
  66 //
  67
  68 HudContainerType HUD_deque;
  69
  70 class locRECT {
  71   public:
  72     RECT rect;
  73
  74     locRECT( UINT left, UINT top, UINT right, UINT bottom);
  75     RECT get_rect(void) { return rect;}
  76 };
  77
  78 locRECT :: locRECT( UINT left, UINT top, UINT right, UINT bottom)
  79 {
  80   rect.left   =  left;
  81   rect.top    =  top;
  82   rect.right  =  right;
  83   rect.bottom =  bottom;
  84
  85 }
  86 // #define DEBUG
  87
  88 void drawOneLine( UINT x1, UINT y1, UINT x2, UINT y2)
  89 {
  90   glBegin(GL_LINES);
  91   glVertex2f(x1, y1);
  92   glVertex2f(x2, y2);
  93   glEnd();
  94 }
  95
  96 void drawOneLine( RECT &rect)
  97 {
  98   glBegin(GL_LINES);
  99   glVertex2f(rect.left, rect.top);
 100   glVertex2f(rect.right, rect.bottom);
 101   glEnd();
 102 }
 103
 104 //
 105 // The following code deals with painting the "instrument" on the display
 106 //
 107    /* textString - Bitmap font string */
 108
 109 void textString( int x, int y, char *msg, void *font ){
 110         glRasterPos2f(x, y);
 111         while (*msg) {
 112                 glutBitmapCharacter(font, *msg);
 113                 msg++;
 114     }
 115 }
 116
 117 /* strokeString - Stroke font string */
 118
 119 void strokeString(int x, int y, char *msg, void *font, float theta)
 120 {
 121 int xx;
 122 int yy;
 123
 124         glPushMatrix();
 125   glRotatef(theta * RAD_TO_DEG, 0.0, 0.0, 1.0);
 126   xx = (int)(x * cos(theta) + y * sin( theta ));
 127   yy = (int)(y * cos(theta) - x * sin( theta ));
 128         glTranslatef( xx, yy, 0);
 129         glScalef(.1, .1, 0.0);
 130         while (*msg) {
 131                 glutStrokeCharacter(font, *msg);
 132                 msg++;
 133         }
 134         glPopMatrix();
 135 }
 136
 137 //========================= End of Class Implementations===================
 138 // fgHUDInit
 139 //
 140 // Constructs a HUD object and then adds in instruments. At the present
 141 // the instruments are hard coded into the routine. Ultimately these need
 142 // to be defined by the aircraft's instrumentation records so that the
 143 // display for a Piper Cub doesn't show the speed range of a North American
 144 // mustange and the engine readouts of a B36!
 145 //
 146
 147 #define INSTRDEFS 21
 148
 149 int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
 150 {
 151   instr_item *HIptr;
 152   int index;
 153
 154   FG_LOG( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD" );
 155
 156   HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());  // empty the HUD deque
 157
 158 //  hud->code = 1;
 159 //  hud->status = 0;
 160
 161   // For now lets just hardcode the hud here.
 162   // In the future, hud information has to come from the same place
 163   // aircraft information came from.
 164
 165 //  fgHUDSetTimeMode( hud, NIGHT );
 166 //  fgHUDSetBrightness( hud, BRT_LIGHT );
 167
 168   index = 0;
 169
 170   do {
 171     switch ( index ) {
 172       case 0:     // TBI
 173         HIptr = (instr_item *) new fgTBI_instr( 270, 100, 60, 10 );
 174         break;
 175
 176       case 1:     // Artificial Horizon
 177         HIptr = (instr_item *) new HudLadder( 240, 195, 120, 180 );
 178         break;
 179
 180       case 2:    // KIAS
 181         HIptr = (instr_item *) new hud_card( 130,
 182                                              170,
 183                                               28,
 184                                              200,
 185                                              get_speed,
 186                                              HUDS_LEFT | HUDS_VERT,
 187                                              200.0, 0.0,
 188                                              1.0,
 189                                              10,  5,
 190                                              0,
 191                                              0,
 192                                              50.0,
 193                                              true);
 194
 195         break;
 196
 197       case 3:    // Radio Altimeter
 198         HIptr = (instr_item *) new hud_card( 420,
 199                                              195,
 200                                               25,
 201                                              150,
 202                                              get_agl,
 203                                              HUDS_LEFT | HUDS_VERT,
 204                                              1000, 0,
 205                                              1.0,
 206                                              25,    5,
 207                                              0,
 208                                              0,
 209                                              200.0,
 210                                              true);
 211         break;
 212
 213       case 4:    // GYRO COMPASS
 214         HIptr = (instr_item *) new hud_card( 200,
 215                                              375,
 216                                              200,
 217                                               28,
 218                                              get_heading,
 219                                              HUDS_TOP,
 220                                              360, 0,
 221                                                1.0,
 222                                                5,   1,
 223                                              360,
 224                                                0,
 225                                               25,
 226                                              true);
 227         break;
 228
 229       case 5:    // AMSL
 230         HIptr = (instr_item *) new hud_card( 460,
 231                                              170,
 232                                               35,
 233                                              200,
 234                                              get_altitude,
 235                                              HUDS_RIGHT | HUDS_VERT,
 236                                              15000, -500,
 237                                              1.0,
 238                                              100,  25,
 239                                              0,
 240                                              0,
 241                                              250,
 242                                              true);
 243         break;
 244
 245       case 6:
 246         HIptr = (instr_item *) new  guage_instr( 250,            // x
 247                                                  350,            // y
 248                                                  100,            // width
 249                                                   20,            // height
 250                                                  get_aileronval, // data source
 251                                                  HUDS_BOTTOM | HUDS_NOTEXT,
 252                                                  100.0,
 253                                                  +1.0,
 254                                                  -1.0);
 255         break;
 256
 257       case 7:
 258         HIptr = (instr_item *) new  guage_instr( 170,             // x
 259                                                  225,             // y
 260                                                   20,             // width
 261                                                  100,             // height
 262                                                  get_elevatorval, // data source
 263                                                  HUDS_RIGHT | HUDS_VERT | HUDS_NOTEXT,
 264                                                 -100.0,           // Scale data
 265                                                   +1.0,           // Data Range
 266                                                   -1.0);
 267         break;
 268
 269       case 8:
 270         HIptr = (instr_item *) new  guage_instr( 250,             // x
 271                                                  200,             // y
 272                                                  100,             // width
 273                                                   20,             // height
 274                                                  get_rudderval,   // data source
 275                                                  HUDS_TOP | HUDS_NOTEXT,
 276                                                  100.0,
 277                                                  +1.0,
 278                                                  -1.0);
 279         break;
 280
 281       case 9:
 282         HIptr = (instr_item *) new  guage_instr( 100,             // x
 283                                                  190,
 284                                                   20,
 285                                                  160,             // height
 286                                                  get_throttleval, // data source
 287                                                  HUDS_VERT | HUDS_RIGHT | HUDS_NOTEXT,
 288                                                  100.0,
 289                                                    1.0,
 290                                                    0.0);
 291         break;
 292
 293       case 10:    // Digital KIAS
 294         HIptr = (instr_item *) new instr_label ( 110,
 295                                                  150,
 296                                                   40,
 297                                                   30,
 298                                                  get_speed,
 299                                                  "%5.0f",
 300                                                  NULL,
 301                                                  " Kts",
 302                                                  1.0,
 303                                                  HUDS_TOP,
 304                                                  RIGHT_JUST,
 305                                                  SMALL,
 306                                                  0,
 307                                                  TRUE );
 308         break;
 309
 310       case 11:    // Digital Rate of Climb
 311         HIptr = (instr_item *) new instr_label ( 110,
 312                                                  135,
 313                                                   40,
 314                                                   10,
 315                                                  get_climb_rate,
 316                                                  "%5.0f",
 317                                                  " Climb",
 318                                                  NULL,
 319                                                  1.0,
 320                                                  HUDS_TOP,
 321                                                  RIGHT_JUST,
 322                                                  SMALL,
 323                                                  0,
 324                                                  TRUE );
 325         break;
 326
 327       case 12:    // Roll indication diagnostic
 328         HIptr = (instr_item *) new instr_label ( 110,
 329                                                  120,
 330                                                   40,
 331                                                   10,
 332                                                  get_roll,
 333                                                  "%5.2f",
 334                                                  " Roll",
 335                                                  " Deg",
 336                                                  1.0,
 337                                                  HUDS_TOP,
 338                                                  RIGHT_JUST,
 339                                                  SMALL,
 340                                                  0,
 341                                                  TRUE );
 342         break;
 343
 344       case 13:    // Angle of attack diagnostic
 345         HIptr = (instr_item *) new instr_label ( 440,
 346                                                  150,
 347                                                   60,
 348                                                   10,
 349                                                  get_aoa,
 350                                                  "      %5.2f",
 351                                                  "AOA",
 352                                                  " Deg",
 353                                                  1.0,
 354                                                  HUDS_TOP,
 355                                                  RIGHT_JUST,
 356                                                  SMALL,
 357                                                  0,
 358                                                  TRUE );
 359         break;
 360
 361       case 14:
 362         HIptr = (instr_item *) new instr_label ( 440,
 363                                                  135,
 364                                                   60,
 365                                                   10,
 366                                                  get_heading,
 367                                                  " %5.1f",
 368                                                  "Heading ",
 369                                                  " Deg",
 370                                                  1.0,
 371                                                  HUDS_TOP,
 372                                                  RIGHT_JUST,
 373                                                  SMALL,
 374                                                  0,
 375                                                  TRUE );
 376         break;
 377
 378       case 15:
 379         HIptr = (instr_item *) new instr_label ( 440,
 380                                                  120,
 381                                                   60,
 382                                                   10,
 383                                                  get_sideslip,
 384                                                  "%5.2f",
 385                                                  "Sideslip ",
 386                                                  NULL,
 387                                                  1.0,
 388                                                  HUDS_TOP,
 389                                                  RIGHT_JUST,
 390                                                  SMALL,
 391                                                  0,
 392                                                  TRUE );
 393         break;
 394
 395       case 16:
 396         HIptr = (instr_item *) new instr_label( 440,
 397                                                 100,
 398                                                  60,
 399                                                  10,
 400                                                 get_throttleval,
 401                                                 "%5.2f",
 402                                                 "Throttle ",
 403                                                 NULL,
 404                                                  1.0,
 405                                                 HUDS_TOP,
 406                                                 RIGHT_JUST,
 407                                                 SMALL,
 408                                                 0,
 409                                                 TRUE );
 410         break;
 411
 412       case 17:
 413         HIptr = (instr_item *) new instr_label( 440,
 414                                                  85,
 415                                                  60,
 416                                                  10,
 417                                                 get_elevatorval,
 418                                                 "%5.2f",
 419                                                 "Elevator ",
 420                                                 NULL,
 421                                                  1.0,
 422                                                 HUDS_TOP,
 423                                                 RIGHT_JUST,
 424                                                 SMALL,
 425                                                 0,
 426                                                 TRUE );
 427         break;
 428
 429       case 18:
 430         HIptr = (instr_item *) new instr_label( 440,
 431                                                  60,
 432                                                  60,
 433                                                  10,
 434                                                 get_aileronval,
 435                                                 "%5.2f",
 436                                                 "Aileron  ",
 437                                                 NULL,
 438                                                  1.0,
 439                                                 HUDS_TOP,
 440                                                 RIGHT_JUST,
 441                                                 SMALL,
 442                                                 0,
 443                                                 TRUE );
 444         break;
 445
 446
 447       case 19:
 448         HIptr = (instr_item *) new instr_label( 10,
 449                                                 10,
 450                                                 60,
 451                                                 10,
 452                                                  get_frame_rate,
 453                                                 "%.0f",
 454                                                 "Frame rate = ",
 455                                                 NULL,
 456                                                  1.0,
 457                                                 HUDS_TOP,
 458                                                 RIGHT_JUST,
 459                                                 SMALL,
 460                                                 0,
 461                                                 TRUE );
 462         break;
 463
 464       case 20:
 465           switch( current_options.get_tris_or_culled() ) {
 466           case 0:
 467               HIptr = (instr_item *) new instr_label( 10,
 468                                                       25,
 469                                                       90,
 470                                                       10,
 471                                                       get_vfc_tris_drawn,
 472                                                       "%.0f",
 473                                                       "Tris Rendered = ",
 474                                                       NULL,
 475                                                       1.0,
 476                                                       HUDS_TOP,
 477                                                       RIGHT_JUST,
 478                                                       SMALL,
 479                                                       0,
 480                                                       TRUE );
 481               break;
 482           case 1:
 483               HIptr = (instr_item *) new instr_label( 10,
 484                                                       25,
 485                                                       90,
 486                                                       10,
 487                                                       get_vfc_ratio,
 488                                                       "%.2f",
 489                                                       "VFC Ratio = ",
 490                                                       NULL,
 491                                                       1.0,
 492                                                       HUDS_TOP,
 493                                                       RIGHT_JUST,
 494                                                       SMALL,
 495                                                       0,
 496                                                       TRUE );
 497               break;
 498           }
 499           break;
 500
 501       case 21:
 502         HIptr = (instr_item *) new instr_label( 10,
 503                                                 40,
 504                                                 90,
 505                                                 10,
 506                                                 get_fov,
 507                                                 "%.1f",
 508                                                 "FOV = ",
 509                                                 NULL,
 510                                                 1.0,
 511                                                 HUDS_TOP,
 512                                                 RIGHT_JUST,
 513                                                 SMALL,
 514                                                 0,
 515                                                 TRUE );
 516         break;
 517
 518       default:
 519         HIptr = 0;;
 520       }
 521     if( HIptr ) {                   // Anything to install?
 522       HUD_deque.insert( HUD_deque.begin(), HIptr);
 523       }
 524     index++;
 525     }
 526   while( HIptr );
 527
 528   return 0;  // For now. Later we may use this for an error code.
 529 }
 530
 531 int fgHUDInit2( fgAIRCRAFT * /* current_aircraft */ )
 532 {
 533     int index;
 534
 535     FG_LOG( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD" );
 536
 537     HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());
 538
 539     //  hud->code = 1;
 540     //  hud->status = 0;
 541
 542     // For now lets just hardcode the hud here.
 543     // In the future, hud information has to come from the same place
 544     // aircraft information came from.
 545
 546     //  fgHUDSetTimeMode( hud, NIGHT );
 547     //  fgHUDSetBrightness( hud, BRT_LIGHT );
 548
 549     //  index = 0;
 550     index = 19;
 551
 552     instr_item* p;
 553
 554     p = new instr_label( 10, 10, 60, 10,
 555                          get_frame_rate,
 556                          "%.0f",
 557                          "Frame rate = ",
 558                          NULL,
 559                          1.0,
 560                          HUDS_TOP,
 561                          RIGHT_JUST,
 562                          SMALL,
 563                          0,
 564                          TRUE );
 565     HUD_deque.push_front( p );
 566
 567     if ( current_options.get_tris_or_culled() == 0 )
 568         p = new instr_label( 10, 25, 90, 10,
 569                              get_vfc_tris_drawn,
 570                              "%.0f",
 571                              "Tris Rendered = ",
 572                              NULL,
 573                              1.0,
 574                              HUDS_TOP,
 575                              RIGHT_JUST,
 576                              SMALL,
 577                              0,
 578                              TRUE );
 579     else
 580         p = new instr_label( 10, 25, 90, 10,
 581                              get_vfc_ratio,
 582                              "%.2f",
 583                              "VFC Ratio = ",
 584                              NULL,
 585                              1.0,
 586                              HUDS_TOP,
 587                              RIGHT_JUST,
 588                              SMALL,
 589                              0,
 590                              TRUE );
 591     HUD_deque.push_front( p );
 592
 593     p = new instr_label( 10, 40, 90, 10,
 594                          get_fov,
 595                          "%.1f",
 596                          "FOV = ",
 597                          NULL,
 598                          1.0,
 599                          HUDS_TOP,
 600                          RIGHT_JUST,
 601                          SMALL,
 602                          0,
 603                          TRUE );
 604     HUD_deque.push_front( p );
 605
 606     const int x_pos = 480;
 607     p = new instr_label( x_pos, 40, 40, 30,
 608                          get_speed,
 609                          "%5.0f",
 610                          "Airspeed ",
 611                          " Kts",
 612                          1.0,
 613                          HUDS_TOP,
 614                          RIGHT_JUST,
 615                          SMALL,
 616                          0,
 617                          TRUE );
 618     HUD_deque.push_front( p );
 619
 620     if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
 621         strcpy(units, " ft");
 622     } else {
 623         strcpy(units, " m");
 624     }
 625     p = new instr_label( x_pos, 25, 40, 10,
 626                          get_altitude,
 627                          "%5.0f",
 628                          "Altitude ",
 629                          units,
 630                          1.0,
 631                          HUDS_TOP,
 632                          RIGHT_JUST,
 633                          SMALL,
 634                          0,
 635                          TRUE );
 636     HUD_deque.push_front( p );
 637
 638     p = new instr_label( x_pos, 10, 60, 10,
 639                          get_heading,
 640                          "%5.1f",
 641                          "Heading  ",
 642                          " Deg",
 643                          1.0,
 644                          HUDS_TOP,
 645                          RIGHT_JUST,
 646                          SMALL,
 647                          0,
 648                          TRUE );
 649     HUD_deque.push_front( p );
 650
 651     return 0;  // For now. Later we may use this for an error code.
 652 }
 653
 654 int global_day_night_switch = DAY;
 655
 656 void HUD_brightkey( bool incr_bright )
 657 {
 658 instr_item *pHUDInstr = HUD_deque[0];
 659 int brightness        = pHUDInstr->get_brightness();
 660
 661   if( current_options.get_hud_status() ) {
 662     if( incr_bright ) {
 663       switch (brightness) {
 664         case BRT_LIGHT:
 665               current_options.set_hud_status(0);
 666           break;
 667
 668         case BRT_MEDIUM:
 669           brightness = BRT_LIGHT;
 670           break;
 671
 672         case BRT_DARK:
 673           brightness = BRT_MEDIUM;
 674           break;
 675
 676         case BRT_BLACK:
 677           brightness = BRT_DARK;
 678           break;
 679
 680         default:
 681           brightness = BRT_BLACK;
 682         }
 683       }
 684     else {
 685       switch (brightness) {
 686         case BRT_LIGHT:
 687           brightness = BRT_MEDIUM;
 688           break;
 689
 690         case BRT_MEDIUM:
 691           brightness = BRT_DARK;
 692           break;
 693
 694         case BRT_DARK:
 695           brightness = BRT_BLACK;
 696           break;
 697
 698         case BRT_BLACK:
 699         default:
 700               current_options.set_hud_status(0);
 701         }
 702       }
 703     }
 704   else {
 705     current_options.set_hud_status(1);
 706     if( incr_bright ) {
 707       if( DAY == global_day_night_switch ) {
 708         brightness = BRT_BLACK;
 709         }
 710       else {
 711         brightness = BRT_DARK;
 712         global_day_night_switch = DAY;
 713         }
 714       }
 715     else {
 716       if( NIGHT == global_day_night_switch ) {
 717         brightness = BRT_DARK;
 718         }
 719       else {
 720         brightness = BRT_MEDIUM;
 721         global_day_night_switch = NIGHT;
 722         }
 723       }
 724     }
 725   pHUDInstr->SetBrightness( brightness );
 726 }
 727
 728 // fgUpdateHUD
 729 //
 730 // Performs a once around the list of calls to instruments installed in
 731 // the HUD object with requests for redraw. Kinda. It will when this is
 732 // all C++.
 733 //
 734 void fgUpdateHUD( void ) {
 735   int i;
 736   int brightness;
 737 //  int day_night_sw = current_aircraft.controls->day_night_switch;
 738   int day_night_sw = global_day_night_switch;
 739   int hud_displays = HUD_deque.size();
 740   instr_item *pHUDInstr;
 741
 742   if( !hud_displays ) {  // Trust everyone, but ALWAYS cut the cards!
 743     return;
 744     }
 745
 746   pHUDInstr = HUD_deque[0];
 747   brightness = pHUDInstr->get_brightness();
 748 //  brightness = HUD_deque.at(0)->get_brightness();
 749
 750   glMatrixMode(GL_PROJECTION);
 751   glPushMatrix();
 752
 753   glLoadIdentity();
 754   gluOrtho2D(0, 640, 0, 480);
 755   glMatrixMode(GL_MODELVIEW);
 756   glPushMatrix();
 757   glLoadIdentity();
 758
 759   glColor3f(1.0, 1.0, 1.0);
 760   glIndexi(7);
 761
 762   glDisable(GL_DEPTH_TEST);
 763   glDisable(GL_LIGHTING);
 764
 765   glLineWidth(1);
 766
 767   HudIterator current = HUD_deque.begin();
 768   HudIterator last = HUD_deque.end();
 769
 770   for ( ; current != last; ++current ) {
 771     pHUDInstr = *current;
 772
 773     // for( i = hud_displays; i; --i) { // Draw everything
 774     // if( HUD_deque.at(i)->enabled()) {
 775     // pHUDInstr = HUD_deque[i - 1];
 776     if( pHUDInstr->enabled()) {
 777                                    // We should to respond to a dial instead
 778                                    // or as well to the of time of day. Of
 779                                    // course, we have no dial!
 780       if( day_night_sw == DAY) {
 781         switch (brightness) {
 782           case BRT_LIGHT:
 783             glColor3f (0.1, 0.9, 0.1);
 784             break;
 785
 786           case BRT_MEDIUM:
 787             glColor3f (0.1, 0.7, 0.0);
 788             break;
 789
 790           case BRT_DARK:
 791             glColor3f (0.0, 0.5, 0.0);
 792             break;
 793
 794           case BRT_BLACK:
 795             glColor3f( 0.0, 0.0, 0.0);
 796             break;
 797
 798           default:;
 799             }
 800           }
 801         else {
 802           if( day_night_sw == NIGHT) {
 803             switch (brightness) {
 804               case BRT_LIGHT:
 805                 glColor3f (0.9, 0.1, 0.1);
 806                 break;
 807
 808               case BRT_MEDIUM:
 809                 glColor3f (0.7, 0.0, 0.1);
 810                 break;
 811
 812               case BRT_DARK:
 813               default:
 814                 glColor3f (0.5, 0.0, 0.0);
 815               }
 816             }
 817           else {     // Just in case default
 818             glColor3f (0.1, 0.9, 0.1);
 819             }
 820           }
 821     //  fgPrintf( FG_COCKPIT, FG_DEBUG, "HUD Code %d  Status %d\n",
 822     //            hud->code, hud->status );
 823       pHUDInstr->draw();
 824 //      HUD_deque.at(i)->draw(); // Responsible for broken or fixed variants.
 825                               // No broken displays honored just now.
 826       }
 827     }
 828
 829   glEnable(GL_DEPTH_TEST);
 830   glEnable(GL_LIGHTING);
 831   glMatrixMode(GL_PROJECTION);
 832   glPopMatrix();
 833   glMatrixMode(GL_MODELVIEW);
 834   glPopMatrix();
 835 }
 836
 837 // $Log$
 838 // Revision 1.32  1999/03/02 01:02:37  curt
 839 // Tweaks for building with native SGI compilers.
 840 //
 841 // Revision 1.31  1999/02/02 20:13:31  curt
 842 // MSVC++ portability changes by Bernie Bright:
 843 //
 844 // Lib/Serial/serial.[ch]xx: Initial Windows support - incomplete.
 845 // Simulator/Astro/stars.cxx: typo? included <stdio> instead of <cstdio>
 846 // Simulator/Cockpit/hud.cxx: Added Standard headers
 847 // Simulator/Cockpit/panel.cxx: Redefinition of default parameter
 848 // Simulator/Flight/flight.cxx: Replaced cout with FG_LOG.  Deleted <stdio.h>
 849 // Simulator/Main/fg_init.cxx:
 850 // Simulator/Main/GLUTmain.cxx:
 851 // Simulator/Main/options.hxx: Shuffled <fg_serial.hxx> dependency
 852 // Simulator/Objects/material.hxx:
 853 // Simulator/Time/timestamp.hxx: VC++ friend kludge
 854 // Simulator/Scenery/tile.[ch]xx: Fixed using std::X declarations
 855 // Simulator/Main/views.hxx: Added a constant
 856 //
 857 // Revision 1.30  1999/01/27 04:47:52  curt
 858 // Make lower end of altitude = -500 so the altimeter is guaged below zero (such
 859 // as in death valley.)
 860 //
 861 // Revision 1.29  1998/12/18 23:35:10  curt
 862 // Converted to a simpler frame rate counting method.
 863 //
 864 // Revision 1.28  1998/11/23 21:48:59  curt
 865 // Borland portability tweaks.
 866 //
 867 // Revision 1.27  1998/11/06 21:17:47  curt
 868 // Converted to new logstream debugging facility.  This allows release
 869 // builds with no messages at all (and no performance impact) by using
 870 // the -DFG_NDEBUG flag.
 871 //
 872 // Revision 1.26  1998/11/03 12:33:11  curt
 873 // Display ft or m in mini-hud next to altitude.
 874 //
 875 // Revision 1.25  1998/10/17 01:33:57  curt
 876 // C++ ifying ...
 877 //
 878 // Revision 1.24  1998/10/16 23:27:25  curt
 879 // C++-ifying.
 880 //
 881 // Revision 1.23  1998/10/16 00:53:00  curt
 882 // Mods to display a bit more info when mini-hud is active.
 883 //
 884 // Revision 1.22  1998/09/29 14:56:31  curt
 885 // c++-ified comments.
 886 //
 887 // Revision 1.21  1998/09/29 02:01:07  curt
 888 // Added a "rate of climb" indicator.
 889 //
 890 // Revision 1.20  1998/08/24 20:05:16  curt
 891 // Added a second minimalistic HUD.
 892 // Added code to display the number of triangles rendered.
 893 //
 894 // Revision 1.19  1998/07/30 23:44:05  curt
 895 // Tweaks for sgi building.
 896 //
 897 // Revision 1.18  1998/07/20 12:47:55  curt
 898 // Replace the hud rendering for loop (which linearly searches the the hud
 899 // list to find the entry with the proper position) with a simple linear
 900 // traversal using an "iterator."
 901 //
 902 // Revision 1.17  1998/07/13 21:28:02  curt
 903 // Converted the aoa scale to a radio altimeter.
 904 //
 905 // Revision 1.16  1998/07/13 21:00:47  curt
 906 // Integrated Charlies latest HUD updates.
 907 // Wrote access functions for current fgOPTIONS.
 908 //
 909 // Revision 1.15  1998/07/08 14:41:08  curt
 910 // Renamed polar3d.h to polar3d.hxx
 911 //
 912 // Revision 1.14  1998/07/06 21:31:20  curt
 913 // Removed an extraneous ^M.
 914 //
 915 // Revision 1.13  1998/07/03 13:16:28  curt
 916 // Added Charlie Hotchkiss's HUD updates and improvementes.
 917 //
 918 // Revision 1.11  1998/06/05 18:17:10  curt
 919 // Added the declaration of memmove needed by the stl which apparently
 920 // solaris only defines for cc compilations and not for c++ (__STDC__)
 921 //
 922 // Revision 1.10  1998/05/17 16:58:12  curt
 923 // Added a View Frustum Culling ratio display to the hud.
 924 //
 925 // Revision 1.9  1998/05/16 13:04:14  curt
 926 // New updates from Charlie Hotchkiss.
 927 //
 928 // Revision 1.8  1998/05/13 18:27:54  curt
 929 // Added an fov to hud display.
 930 //
 931 // Revision 1.7  1998/05/11 18:13:11  curt
 932 // Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
 933 //
 934 // Revision 1.22  1998/04/18 04:14:02  curt
 935 // Moved fg_debug.c to it's own library.
 936 //
 937 // Revision 1.21  1998/04/03 21:55:28  curt
 938 // Converting to Gnu autoconf system.
 939 // Tweaks to hud.c
 940 //
 941 // Revision 1.20  1998/03/09 22:48:40  curt
 942 // Minor "formatting" tweaks.
 943 //
 944 // Revision 1.19  1998/02/23 20:18:28  curt
 945 // Incorporated Michele America's hud changes.
 946 //
 947 // Revision 1.18  1998/02/21 14:53:10  curt
 948 // Added Charlie's HUD changes.
 949 //
 950 // Revision 1.17  1998/02/20 00:16:21  curt
 951 // Thursday's tweaks.
 952 //
 953 // Revision 1.16  1998/02/19 13:05:49  curt
 954 // Incorporated some HUD tweaks from Michelle America.
 955 // Tweaked the sky's sunset/rise colors.
 956 // Other misc. tweaks.
 957 //
 958 // Revision 1.15  1998/02/16 13:38:39  curt
 959 // Integrated changes from Charlie Hotchkiss.
 960 //
 961 // Revision 1.14  1998/02/12 21:59:41  curt
 962 // Incorporated code changes contributed by Charlie Hotchkiss
 963 // <chotchkiss@namg.us.anritsu.com>
 964 //
 965 // Revision 1.12  1998/02/09 15:07:48  curt
 966 // Minor tweaks.
 967 //
 968 // Revision 1.11  1998/02/07 15:29:34  curt
 969 // Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
 970 // <chotchkiss@namg.us.anritsu.com>
 971 //
 972 // Revision 1.10  1998/02/03 23:20:14  curt
 973 // Lots of little tweaks to fix various consistency problems discovered by
 974 // Solaris' CC.  Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
 975 // passed arguments along to the real printf().  Also incorporated HUD changes
 976 // by Michele America.
 977 //
 978 // Revision 1.9  1998/01/31 00:43:04  curt
 979 // Added MetroWorks patches from Carmen Volpe.
 980 //
 981 // Revision 1.8  1998/01/27 00:47:51  curt
 982 // Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
 983 // system and commandline/config file processing code.
 984 //
 985 // Revision 1.7  1998/01/19 18:40:20  curt
 986 // Tons of little changes to clean up the code and to remove fatal errors
 987 // when building with the c++ compiler.
 988 //
 989 // Revision 1.6  1997/12/15 23:54:34  curt
 990 // Add xgl wrappers for debugging.
 991 // Generate terrain normals on the fly.
 992 //
 993 // Revision 1.5  1997/12/10 22:37:39  curt
 994 // Prepended "fg" on the name of all global structures that didn't have it yet.
 995 // i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
 996 //
 997 // Revision 1.4  1997/09/23 00:29:32  curt
 998 // Tweaks to get things to compile with gcc-win32.
 999 //
1000 // Revision 1.3  1997/09/05 14:17:26  curt
1001 // More tweaking with stars.
1002 //
1003 // Revision 1.2  1997/09/04 02:17:30  curt
1004 // Shufflin' stuff.
1005 //
1006 // Revision 1.1  1997/08/29 18:03:22  curt
1007 // Initial revision.
1008 //