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