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