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 typedef deque< instr_item * > HudContainerType;
  69 typedef HudContainerType::iterator HudIterator;
  70
  71 HudContainerType HUD_deque;
  72
  73 class locRECT {
  74   public:
  75     RECT rect;
  76
  77     locRECT( UINT left, UINT top, UINT right, UINT bottom);
  78     RECT get_rect(void) { return rect;}
  79 };
  80
  81 locRECT :: locRECT( UINT left, UINT top, UINT right, UINT bottom)
  82 {
  83   rect.left   =  left;
  84   rect.top    =  top;
  85   rect.right  =  right;
  86   rect.bottom =  bottom;
  87
  88 }
  89 // #define DEBUG
  90
  91 void drawOneLine( UINT x1, UINT y1, UINT x2, UINT y2)
  92 {
  93   glBegin(GL_LINES);
  94   glVertex2f(x1, y1);
  95   glVertex2f(x2, y2);
  96   glEnd();
  97 }
  98
  99 void drawOneLine( RECT &rect)
 100 {
 101   glBegin(GL_LINES);
 102   glVertex2f(rect.left, rect.top);
 103   glVertex2f(rect.right, rect.bottom);
 104   glEnd();
 105 }
 106
 107 //
 108 // The following code deals with painting the "instrument" on the display
 109 //
 110    /* textString - Bitmap font string */
 111
 112 void textString( int x, int y, char *msg, void *font ){
 113         glRasterPos2f(x, y);
 114         while (*msg) {
 115                 glutBitmapCharacter(font, *msg);
 116                 msg++;
 117     }
 118 }
 119
 120 /* strokeString - Stroke font string */
 121
 122 void strokeString(int x, int y, char *msg, void *font, float theta)
 123 {
 124 int xx;
 125 int yy;
 126
 127         glPushMatrix();
 128   glRotatef(theta * RAD_TO_DEG, 0.0, 0.0, 1.0);
 129   xx = (int)(x * cos(theta) + y * sin( theta ));
 130   yy = (int)(y * cos(theta) - x * sin( theta ));
 131         glTranslatef( xx, yy, 0);
 132         glScalef(.1, .1, 0.0);
 133         while (*msg) {
 134                 glutStrokeCharacter(font, *msg);
 135                 msg++;
 136         }
 137         glPopMatrix();
 138 }
 139
 140 //========================= End of Class Implementations===================
 141 // fgHUDInit
 142 //
 143 // Constructs a HUD object and then adds in instruments. At the present
 144 // the instruments are hard coded into the routine. Ultimately these need
 145 // to be defined by the aircraft's instrumentation records so that the
 146 // display for a Piper Cub doesn't show the speed range of a North American
 147 // mustange and the engine readouts of a B36!
 148 //
 149
 150 #define INSTRDEFS 21
 151
 152 int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
 153 {
 154   instr_item *HIptr;
 155   int index;
 156
 157   FG_LOG( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD" );
 158
 159   HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());  // empty the HUD deque
 160
 161 //  hud->code = 1;
 162 //  hud->status = 0;
 163
 164   // For now lets just hardcode the hud here.
 165   // In the future, hud information has to come from the same place
 166   // aircraft information came from.
 167
 168 //  fgHUDSetTimeMode( hud, NIGHT );
 169 //  fgHUDSetBrightness( hud, BRT_LIGHT );
 170
 171   index = 0;
 172
 173   do {
 174     switch ( index ) {
 175       case 0:     // TBI
 176         HIptr = (instr_item *) new fgTBI_instr( 270, 100, 60, 10 );
 177         break;
 178
 179       case 1:     // Artificial Horizon
 180         HIptr = (instr_item *) new HudLadder( 240, 195, 120, 180 );
 181         break;
 182
 183       case 2:    // KIAS
 184         HIptr = (instr_item *) new hud_card( 130,
 185                                              170,
 186                                               28,
 187                                              200,
 188                                              get_speed,
 189                                              HUDS_LEFT | HUDS_VERT,
 190                                              200.0, 0.0,
 191                                              1.0,
 192                                              10,  5,
 193                                              0,
 194                                              0,
 195                                              50.0,
 196                                              true);
 197
 198         break;
 199
 200       case 3:    // Radio Altimeter
 201         HIptr = (instr_item *) new hud_card( 420,
 202                                              195,
 203                                               25,
 204                                              150,
 205                                              get_agl,
 206                                              HUDS_LEFT | HUDS_VERT,
 207                                              1000, 0,
 208                                              1.0,
 209                                              25,    5,
 210                                              0,
 211                                              0,
 212                                              200.0,
 213                                              true);
 214         break;
 215
 216       case 4:    // GYRO COMPASS
 217         HIptr = (instr_item *) new hud_card( 200,
 218                                              375,
 219                                              200,
 220                                               28,
 221                                              get_heading,
 222                                              HUDS_TOP,
 223                                              360, 0,
 224                                                1.0,
 225                                                5,   1,
 226                                              360,
 227                                                0,
 228                                               25,
 229                                              true);
 230         break;
 231
 232       case 5:    // AMSL
 233         HIptr = (instr_item *) new hud_card( 460,
 234                                              170,
 235                                               35,
 236                                              200,
 237                                              get_altitude,
 238                                              HUDS_RIGHT | HUDS_VERT,
 239                                              15000, -500,
 240                                              1.0,
 241                                              100,  25,
 242                                              0,
 243                                              0,
 244                                              250,
 245                                              true);
 246         break;
 247
 248       case 6:
 249         HIptr = (instr_item *) new  guage_instr( 250,            // x
 250                                                  350,            // y
 251                                                  100,            // width
 252                                                   20,            // height
 253                                                  get_aileronval, // data source
 254                                                  HUDS_BOTTOM | HUDS_NOTEXT,
 255                                                  100.0,
 256                                                  +1.0,
 257                                                  -1.0);
 258         break;
 259
 260       case 7:
 261         HIptr = (instr_item *) new  guage_instr( 170,             // x
 262                                                  225,             // y
 263                                                   20,             // width
 264                                                  100,             // height
 265                                                  get_elevatorval, // data source
 266                                                  HUDS_RIGHT | HUDS_VERT | HUDS_NOTEXT,
 267                                                 -100.0,           // Scale data
 268                                                   +1.0,           // Data Range
 269                                                   -1.0);
 270         break;
 271
 272       case 8:
 273         HIptr = (instr_item *) new  guage_instr( 250,             // x
 274                                                  200,             // y
 275                                                  100,             // width
 276                                                   20,             // height
 277                                                  get_rudderval,   // data source
 278                                                  HUDS_TOP | HUDS_NOTEXT,
 279                                                  100.0,
 280                                                  +1.0,
 281                                                  -1.0);
 282         break;
 283
 284       case 9:
 285         HIptr = (instr_item *) new  guage_instr( 100,             // x
 286                                                  190,
 287                                                   20,
 288                                                  160,             // height
 289                                                  get_throttleval, // data source
 290                                                  HUDS_VERT | HUDS_RIGHT | HUDS_NOTEXT,
 291                                                  100.0,
 292                                                    1.0,
 293                                                    0.0);
 294         break;
 295
 296       case 10:    // Digital KIAS
 297         HIptr = (instr_item *) new instr_label ( 110,
 298                                                  150,
 299                                                   40,
 300                                                   30,
 301                                                  get_speed,
 302                                                  "%5.0f",
 303                                                  NULL,
 304                                                  " Kts",
 305                                                  1.0,
 306                                                  HUDS_TOP,
 307                                                  RIGHT_JUST,
 308                                                  SMALL,
 309                                                  0,
 310                                                  TRUE );
 311         break;
 312
 313       case 11:    // Digital Rate of Climb
 314         HIptr = (instr_item *) new instr_label ( 110,
 315                                                  135,
 316                                                   40,
 317                                                   10,
 318                                                  get_climb_rate,
 319                                                  "%5.0f",
 320                                                  " Climb",
 321                                                  NULL,
 322                                                  1.0,
 323                                                  HUDS_TOP,
 324                                                  RIGHT_JUST,
 325                                                  SMALL,
 326                                                  0,
 327                                                  TRUE );
 328         break;
 329
 330       case 12:    // Roll indication diagnostic
 331         HIptr = (instr_item *) new instr_label ( 110,
 332                                                  120,
 333                                                   40,
 334                                                   10,
 335                                                  get_roll,
 336                                                  "%5.2f",
 337                                                  " Roll",
 338                                                  " Deg",
 339                                                  1.0,
 340                                                  HUDS_TOP,
 341                                                  RIGHT_JUST,
 342                                                  SMALL,
 343                                                  0,
 344                                                  TRUE );
 345         break;
 346
 347       case 13:    // Angle of attack diagnostic
 348         HIptr = (instr_item *) new instr_label ( 440,
 349                                                  150,
 350                                                   60,
 351                                                   10,
 352                                                  get_aoa,
 353                                                  "      %5.2f",
 354                                                  "AOA",
 355                                                  " Deg",
 356                                                  1.0,
 357                                                  HUDS_TOP,
 358                                                  RIGHT_JUST,
 359                                                  SMALL,
 360                                                  0,
 361                                                  TRUE );
 362         break;
 363
 364       case 14:
 365         HIptr = (instr_item *) new instr_label ( 440,
 366                                                  135,
 367                                                   60,
 368                                                   10,
 369                                                  get_heading,
 370                                                  " %5.1f",
 371                                                  "Heading ",
 372                                                  " Deg",
 373                                                  1.0,
 374                                                  HUDS_TOP,
 375                                                  RIGHT_JUST,
 376                                                  SMALL,
 377                                                  0,
 378                                                  TRUE );
 379         break;
 380
 381       case 15:
 382         HIptr = (instr_item *) new instr_label ( 440,
 383                                                  120,
 384                                                   60,
 385                                                   10,
 386                                                  get_sideslip,
 387                                                  "%5.2f",
 388                                                  "Sideslip ",
 389                                                  NULL,
 390                                                  1.0,
 391                                                  HUDS_TOP,
 392                                                  RIGHT_JUST,
 393                                                  SMALL,
 394                                                  0,
 395                                                  TRUE );
 396         break;
 397
 398       case 16:
 399         HIptr = (instr_item *) new instr_label( 440,
 400                                                 100,
 401                                                  60,
 402                                                  10,
 403                                                 get_throttleval,
 404                                                 "%5.2f",
 405                                                 "Throttle ",
 406                                                 NULL,
 407                                                  1.0,
 408                                                 HUDS_TOP,
 409                                                 RIGHT_JUST,
 410                                                 SMALL,
 411                                                 0,
 412                                                 TRUE );
 413         break;
 414
 415       case 17:
 416         HIptr = (instr_item *) new instr_label( 440,
 417                                                  85,
 418                                                  60,
 419                                                  10,
 420                                                 get_elevatorval,
 421                                                 "%5.2f",
 422                                                 "Elevator ",
 423                                                 NULL,
 424                                                  1.0,
 425                                                 HUDS_TOP,
 426                                                 RIGHT_JUST,
 427                                                 SMALL,
 428                                                 0,
 429                                                 TRUE );
 430         break;
 431
 432       case 18:
 433         HIptr = (instr_item *) new instr_label( 440,
 434                                                  60,
 435                                                  60,
 436                                                  10,
 437                                                 get_aileronval,
 438                                                 "%5.2f",
 439                                                 "Aileron  ",
 440                                                 NULL,
 441                                                  1.0,
 442                                                 HUDS_TOP,
 443                                                 RIGHT_JUST,
 444                                                 SMALL,
 445                                                 0,
 446                                                 TRUE );
 447         break;
 448
 449
 450       case 19:
 451         HIptr = (instr_item *) new instr_label( 10,
 452                                                 10,
 453                                                 60,
 454                                                 10,
 455                                                  get_frame_rate,
 456                                                 "%.0f",
 457                                                 "Frame rate = ",
 458                                                 NULL,
 459                                                  1.0,
 460                                                 HUDS_TOP,
 461                                                 RIGHT_JUST,
 462                                                 SMALL,
 463                                                 0,
 464                                                 TRUE );
 465         break;
 466
 467       case 20:
 468           switch( current_options.get_tris_or_culled() ) {
 469           case 0:
 470               HIptr = (instr_item *) new instr_label( 10,
 471                                                       25,
 472                                                       90,
 473                                                       10,
 474                                                       get_vfc_tris_drawn,
 475                                                       "%.0f",
 476                                                       "Tris Rendered = ",
 477                                                       NULL,
 478                                                       1.0,
 479                                                       HUDS_TOP,
 480                                                       RIGHT_JUST,
 481                                                       SMALL,
 482                                                       0,
 483                                                       TRUE );
 484               break;
 485           case 1:
 486               HIptr = (instr_item *) new instr_label( 10,
 487                                                       25,
 488                                                       90,
 489                                                       10,
 490                                                       get_vfc_ratio,
 491                                                       "%.2f",
 492                                                       "VFC Ratio = ",
 493                                                       NULL,
 494                                                       1.0,
 495                                                       HUDS_TOP,
 496                                                       RIGHT_JUST,
 497                                                       SMALL,
 498                                                       0,
 499                                                       TRUE );
 500               break;
 501           }
 502           break;
 503
 504       case 21:
 505         HIptr = (instr_item *) new instr_label( 10,
 506                                                 40,
 507                                                 90,
 508                                                 10,
 509                                                 get_fov,
 510                                                 "%.1f",
 511                                                 "FOV = ",
 512                                                 NULL,
 513                                                 1.0,
 514                                                 HUDS_TOP,
 515                                                 RIGHT_JUST,
 516                                                 SMALL,
 517                                                 0,
 518                                                 TRUE );
 519         break;
 520
 521       default:
 522         HIptr = 0;;
 523       }
 524     if( HIptr ) {                   // Anything to install?
 525       HUD_deque.insert( HUD_deque.begin(), HIptr);
 526       }
 527     index++;
 528     }
 529   while( HIptr );
 530
 531   return 0;  // For now. Later we may use this for an error code.
 532 }
 533
 534 int fgHUDInit2( fgAIRCRAFT * /* current_aircraft */ )
 535 {
 536     int index;
 537
 538     FG_LOG( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD" );
 539
 540     HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());
 541
 542     //  hud->code = 1;
 543     //  hud->status = 0;
 544
 545     // For now lets just hardcode the hud here.
 546     // In the future, hud information has to come from the same place
 547     // aircraft information came from.
 548
 549     //  fgHUDSetTimeMode( hud, NIGHT );
 550     //  fgHUDSetBrightness( hud, BRT_LIGHT );
 551
 552     //  index = 0;
 553     index = 19;
 554
 555     instr_item* p;
 556
 557     p = new instr_label( 10, 10, 60, 10,
 558                          get_frame_rate,
 559                          "%.0f",
 560                          "Frame rate = ",
 561                          NULL,
 562                          1.0,
 563                          HUDS_TOP,
 564                          RIGHT_JUST,
 565                          SMALL,
 566                          0,
 567                          TRUE );
 568     HUD_deque.push_front( p );
 569
 570     if ( current_options.get_tris_or_culled() == 0 )
 571         p = new instr_label( 10, 25, 90, 10,
 572                              get_vfc_tris_drawn,
 573                              "%.0f",
 574                              "Tris Rendered = ",
 575                              NULL,
 576                              1.0,
 577                              HUDS_TOP,
 578                              RIGHT_JUST,
 579                              SMALL,
 580                              0,
 581                              TRUE );
 582     else
 583         p = new instr_label( 10, 25, 90, 10,
 584                              get_vfc_ratio,
 585                              "%.2f",
 586                              "VFC Ratio = ",
 587                              NULL,
 588                              1.0,
 589                              HUDS_TOP,
 590                              RIGHT_JUST,
 591                              SMALL,
 592                              0,
 593                              TRUE );
 594     HUD_deque.push_front( p );
 595
 596     p = new instr_label( 10, 40, 90, 10,
 597                          get_fov,
 598                          "%.1f",
 599                          "FOV = ",
 600                          NULL,
 601                          1.0,
 602                          HUDS_TOP,
 603                          RIGHT_JUST,
 604                          SMALL,
 605                          0,
 606                          TRUE );
 607     HUD_deque.push_front( p );
 608
 609     const int x_pos = 480;
 610     p = new instr_label( x_pos, 40, 40, 30,
 611                          get_speed,
 612                          "%5.0f",
 613                          "Airspeed ",
 614                          " Kts",
 615                          1.0,
 616                          HUDS_TOP,
 617                          RIGHT_JUST,
 618                          SMALL,
 619                          0,
 620                          TRUE );
 621     HUD_deque.push_front( p );
 622
 623     if ( current_options.get_units() == fgOPTIONS::FG_UNITS_FEET ) {
 624         strcpy(units, " ft");
 625     } else {
 626         strcpy(units, " m");
 627     }
 628     p = new instr_label( x_pos, 25, 40, 10,
 629                          get_altitude,
 630                          "%5.0f",
 631                          "Altitude ",
 632                          units,
 633                          1.0,
 634                          HUDS_TOP,
 635                          RIGHT_JUST,
 636                          SMALL,
 637                          0,
 638                          TRUE );
 639     HUD_deque.push_front( p );
 640
 641     p = new instr_label( x_pos, 10, 60, 10,
 642                          get_heading,
 643                          "%5.1f",
 644                          "Heading  ",
 645                          " Deg",
 646                          1.0,
 647                          HUDS_TOP,
 648                          RIGHT_JUST,
 649                          SMALL,
 650                          0,
 651                          TRUE );
 652     HUD_deque.push_front( p );
 653
 654     return 0;  // For now. Later we may use this for an error code.
 655 }
 656
 657 int global_day_night_switch = DAY;
 658
 659 void HUD_brightkey( bool incr_bright )
 660 {
 661 instr_item *pHUDInstr = HUD_deque[0];
 662 int brightness        = pHUDInstr->get_brightness();
 663
 664   if( current_options.get_hud_status() ) {
 665     if( incr_bright ) {
 666       switch (brightness) {
 667         case BRT_LIGHT:
 668               current_options.set_hud_status(0);
 669           break;
 670
 671         case BRT_MEDIUM:
 672           brightness = BRT_LIGHT;
 673           break;
 674
 675         case BRT_DARK:
 676           brightness = BRT_MEDIUM;
 677           break;
 678
 679         case BRT_BLACK:
 680           brightness = BRT_DARK;
 681           break;
 682
 683         default:
 684           brightness = BRT_BLACK;
 685         }
 686       }
 687     else {
 688       switch (brightness) {
 689         case BRT_LIGHT:
 690           brightness = BRT_MEDIUM;
 691           break;
 692
 693         case BRT_MEDIUM:
 694           brightness = BRT_DARK;
 695           break;
 696
 697         case BRT_DARK:
 698           brightness = BRT_BLACK;
 699           break;
 700
 701         case BRT_BLACK:
 702         default:
 703               current_options.set_hud_status(0);
 704         }
 705       }
 706     }
 707   else {
 708     current_options.set_hud_status(1);
 709     if( incr_bright ) {
 710       if( DAY == global_day_night_switch ) {
 711         brightness = BRT_BLACK;
 712         }
 713       else {
 714         brightness = BRT_DARK;
 715         global_day_night_switch = DAY;
 716         }
 717       }
 718     else {
 719       if( NIGHT == global_day_night_switch ) {
 720         brightness = BRT_DARK;
 721         }
 722       else {
 723         brightness = BRT_MEDIUM;
 724         global_day_night_switch = NIGHT;
 725         }
 726       }
 727     }
 728   pHUDInstr->SetBrightness( brightness );
 729 }
 730
 731 // fgUpdateHUD
 732 //
 733 // Performs a once around the list of calls to instruments installed in
 734 // the HUD object with requests for redraw. Kinda. It will when this is
 735 // all C++.
 736 //
 737 void fgUpdateHUD( void ) {
 738   int i;
 739   int brightness;
 740 //  int day_night_sw = current_aircraft.controls->day_night_switch;
 741   int day_night_sw = global_day_night_switch;
 742   int hud_displays = HUD_deque.size();
 743   instr_item *pHUDInstr;
 744
 745   if( !hud_displays ) {  // Trust everyone, but ALWAYS cut the cards!
 746     return;
 747     }
 748
 749   pHUDInstr = HUD_deque[0];
 750   brightness = pHUDInstr->get_brightness();
 751 //  brightness = HUD_deque.at(0)->get_brightness();
 752
 753   glMatrixMode(GL_PROJECTION);
 754   glPushMatrix();
 755
 756   glLoadIdentity();
 757   gluOrtho2D(0, 640, 0, 480);
 758   glMatrixMode(GL_MODELVIEW);
 759   glPushMatrix();
 760   glLoadIdentity();
 761
 762   glColor3f(1.0, 1.0, 1.0);
 763   glIndexi(7);
 764
 765   glDisable(GL_DEPTH_TEST);
 766   glDisable(GL_LIGHTING);
 767
 768   glLineWidth(1);
 769
 770   HudIterator current = HUD_deque.begin();
 771   HudIterator last = HUD_deque.end();
 772
 773   for ( ; current != last; ++current ) {
 774     pHUDInstr = *current;
 775
 776     // for( i = hud_displays; i; --i) { // Draw everything
 777     // if( HUD_deque.at(i)->enabled()) {
 778     // pHUDInstr = HUD_deque[i - 1];
 779     if( pHUDInstr->enabled()) {
 780                                    // We should to respond to a dial instead
 781                                    // or as well to the of time of day. Of
 782                                    // course, we have no dial!
 783       if( day_night_sw == DAY) {
 784         switch (brightness) {
 785           case BRT_LIGHT:
 786             glColor3f (0.1, 0.9, 0.1);
 787             break;
 788
 789           case BRT_MEDIUM:
 790             glColor3f (0.1, 0.7, 0.0);
 791             break;
 792
 793           case BRT_DARK:
 794             glColor3f (0.0, 0.5, 0.0);
 795             break;
 796
 797           case BRT_BLACK:
 798             glColor3f( 0.0, 0.0, 0.0);
 799             break;
 800
 801           default:;
 802             }
 803           }
 804         else {
 805           if( day_night_sw == NIGHT) {
 806             switch (brightness) {
 807               case BRT_LIGHT:
 808                 glColor3f (0.9, 0.1, 0.1);
 809                 break;
 810
 811               case BRT_MEDIUM:
 812                 glColor3f (0.7, 0.0, 0.1);
 813                 break;
 814
 815               case BRT_DARK:
 816               default:
 817                 glColor3f (0.5, 0.0, 0.0);
 818               }
 819             }
 820           else {     // Just in case default
 821             glColor3f (0.1, 0.9, 0.1);
 822             }
 823           }
 824     //  fgPrintf( FG_COCKPIT, FG_DEBUG, "HUD Code %d  Status %d\n",
 825     //            hud->code, hud->status );
 826       pHUDInstr->draw();
 827 //      HUD_deque.at(i)->draw(); // Responsible for broken or fixed variants.
 828                               // No broken displays honored just now.
 829       }
 830     }
 831
 832   glEnable(GL_DEPTH_TEST);
 833   glEnable(GL_LIGHTING);
 834   glMatrixMode(GL_PROJECTION);
 835   glPopMatrix();
 836   glMatrixMode(GL_MODELVIEW);
 837   glPopMatrix();
 838 }
 839
 840 // $Log$
 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 //