Cockpit/hud.cxx

   1 /**************************************************************************
   2  * hud.cxx -- hud defines and prototypes
   3  *
   4  * Written by Michele America, started September 1997.
   5  *
   6  * Copyright (C) 1997  Michele F. America  - micheleamerica@geocities.com
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of the
  11  * License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * $Id$
  23  * (Log is kept at end of this file)
  24  **************************************************************************/
  25
  26
  27 #ifdef HAVE_CONFIG_H
  28 #  include <config.h>
  29 #endif
  30
  31 #ifdef HAVE_WINDOWS_H
  32 #  include <windows.h>
  33 #endif
  34
  35 #include <GL/glut.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38
  39 #ifdef HAVE_VALUES_H
  40 #  include <values.h>  // for MAXINT
  41 #endif
  42
  43 #include <Aircraft/aircraft.h>
  44 #include <Debug/fg_debug.h>
  45 #include <Include/fg_constants.h>
  46 #include <Main/options.hxx>
  47 #include <Math/fg_random.h>
  48 #include <Math/mat3.h>
  49 #include <Math/polar3d.hxx>
  50 #include <Scenery/scenery.hxx>
  51 #include <Time/fg_timer.hxx>
  52 #include <Weather/weather.h>
  53
  54 #if defined ( __sun__ ) || defined ( __sgi )
  55 extern "C" {
  56   extern void *memmove(void *, const void *, size_t);
  57 }
  58 #endif
  59
  60 #include "hud.hxx"
  61
  62
  63
  64 // The following routines obtain information concerntin the aircraft's
  65 // current state and return it to calling instrument display routines.
  66 // They should eventually be member functions of the aircraft.
  67 //
  68
  69 deque< instr_item * > HUD_deque;
  70
  71 class locRECT {
  72   public:
  73     RECT rect;
  74
  75     locRECT( UINT left, UINT top, UINT right, UINT bottom);
  76     RECT get_rect(void) { return rect;}
  77 };
  78
  79 locRECT :: locRECT( UINT left, UINT top, UINT right, UINT bottom)
  80 {
  81   rect.left   =  left;
  82   rect.top    =  top;
  83   rect.right  =  right;
  84   rect.bottom =  bottom;
  85
  86 }
  87 // #define DEBUG
  88
  89 void drawOneLine( UINT x1, UINT y1, UINT x2, UINT y2)
  90 {
  91   glBegin(GL_LINES);
  92   glVertex2f(x1, y1);
  93   glVertex2f(x2, y2);
  94   glEnd();
  95 }
  96
  97 void drawOneLine( RECT &rect)
  98 {
  99   glBegin(GL_LINES);
 100   glVertex2f(rect.left, rect.top);
 101   glVertex2f(rect.right, rect.bottom);
 102   glEnd();
 103 }
 104
 105 //
 106 // The following code deals with painting the "instrument" on the display
 107 //
 108    /* textString - Bitmap font string */
 109
 110 void textString( int x, int y, char *msg, void *font ){
 111         glRasterPos2f(x, y);
 112         while (*msg) {
 113                 glutBitmapCharacter(font, *msg);
 114                 msg++;
 115     }
 116 }
 117
 118 /* strokeString - Stroke font string */
 119
 120 void strokeString(int x, int y, char *msg, void *font, float theta)
 121 {
 122 int xx;
 123 int yy;
 124
 125         glPushMatrix();
 126   glRotatef(theta * RAD_TO_DEG, 0.0, 0.0, 1.0);
 127   xx = (int)(x * cos(theta) + y * sin( theta ));
 128   yy = (int)(y * cos(theta) - x * sin( theta ));
 129         glTranslatef( xx, yy, 0);
 130         glScalef(.1, .1, 0.0);
 131         while (*msg) {
 132                 glutStrokeCharacter(font, *msg);
 133                 msg++;
 134         }
 135         glPopMatrix();
 136 }
 137
 138 //========================= End of Class Implementations===================
 139 // fgHUDInit
 140 //
 141 // Constructs a HUD object and then adds in instruments. At the present
 142 // the instruments are hard coded into the routine. Ultimately these need
 143 // to be defined by the aircraft's instrumentation records so that the
 144 // display for a Piper Cub doesn't show the speed range of a North American
 145 // mustange and the engine readouts of a B36!
 146 //
 147
 148 #define INSTRDEFS 21
 149
 150 int fgHUDInit( fgAIRCRAFT * /* current_aircraft */ )
 151 {
 152   instr_item *HIptr;
 153   int index;
 154
 155   fgPrintf( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD\n" );
 156
 157   HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());  // empty the HUD deque
 158
 159 //  hud->code = 1;
 160 //  hud->status = 0;
 161
 162   // For now lets just hardcode the hud here.
 163   // In the future, hud information has to come from the same place
 164   // aircraft information came from.
 165
 166 //  fgHUDSetTimeMode( hud, NIGHT );
 167 //  fgHUDSetBrightness( hud, BRT_LIGHT );
 168
 169   index = 0;
 170
 171   do {
 172     switch ( index ) {
 173       case 0:     // TBI
 174         HIptr = (instr_item *) new fgTBI_instr( 270, 100, 60, 10 );
 175         break;
 176
 177       case 1:     // Artificial Horizon
 178         HIptr = (instr_item *) new HudLadder( 240, 195, 120, 180 );
 179         break;
 180
 181       case 2:    // KIAS
 182         HIptr = (instr_item *) new hud_card( 130,
 183                                              170,
 184                                               28,
 185                                              200,
 186                                              get_speed,
 187                                              HUDS_LEFT | HUDS_VERT,
 188                                              200.0, 0.0,
 189                                              1.0,
 190                                              10,  5,
 191                                              0,
 192                                              0,
 193                                              50.0,
 194                                              true);
 195
 196         break;
 197
 198       case 3:    // Radio Altimeter
 199         HIptr = (instr_item *) new hud_card( 420,
 200                                              195,
 201                                               25,
 202                                              150,
 203                                              get_agl,
 204                                              HUDS_LEFT | HUDS_VERT,
 205                                              1000, 0,
 206                                              1.0,
 207                                              25,    5,
 208                                              0,
 209                                              0,
 210                                              200.0,
 211                                              true);
 212         break;
 213
 214       case 4:    // GYRO COMPASS
 215         HIptr = (instr_item *) new hud_card( 200,
 216                                              375,
 217                                              200,
 218                                               28,
 219                                              get_heading,
 220                                              HUDS_TOP,
 221                                              360, 0,
 222                                                1.0,
 223                                                5,   1,
 224                                              360,
 225                                                0,
 226                                               25,
 227                                              true);
 228         break;
 229
 230       case 5:    // AMSL
 231         HIptr = (instr_item *) new hud_card( 460,
 232                                              170,
 233                                               35,
 234                                              200,
 235                                              get_altitude,
 236                                              HUDS_RIGHT | HUDS_VERT,
 237                                              15000, 0,
 238                                              1.0,
 239                                              100,  25,
 240                                              0,
 241                                              0,
 242                                              250,
 243                                              true);
 244         break;
 245
 246       case 6:
 247         HIptr = (instr_item *) new  guage_instr( 250,            // x
 248                                                  350,            // y
 249                                                  100,            // width
 250                                                   20,            // height
 251                                                  get_aileronval, // data source
 252                                                  HUDS_BOTTOM | HUDS_NOTEXT,
 253                                                  100.0,
 254                                                  +1.0,
 255                                                  -1.0);
 256         break;
 257
 258       case 7:
 259         HIptr = (instr_item *) new  guage_instr( 170,             // x
 260                                                  225,             // y
 261                                                   20,             // width
 262                                                  100,             // height
 263                                                  get_elevatorval, // data source
 264                                                  HUDS_RIGHT | HUDS_VERT | HUDS_NOTEXT,
 265                                                 -100.0,           // Scale data
 266                                                   +1.0,           // Data Range
 267                                                   -1.0);
 268         break;
 269
 270       case 8:
 271         HIptr = (instr_item *) new  guage_instr( 250,             // x
 272                                                  200,             // y
 273                                                  100,             // width
 274                                                   20,             // height
 275                                                  get_rudderval,   // data source
 276                                                  HUDS_TOP | HUDS_NOTEXT,
 277                                                  100.0,
 278                                                  +1.0,
 279                                                  -1.0);
 280         break;
 281
 282       case 9:
 283         HIptr = (instr_item *) new  guage_instr( 100,             // x
 284                                                  190,
 285                                                   20,
 286                                                  160,             // height
 287                                                  get_throttleval, // data source
 288                                                  HUDS_VERT | HUDS_RIGHT | HUDS_NOTEXT,
 289                                                  100.0,
 290                                                    1.0,
 291                                                    0.0);
 292         break;
 293
 294       case 10:    // Digital KIAS
 295         HIptr = (instr_item *) new instr_label ( 110,
 296                                                  150,
 297                                                   40,
 298                                                   30,
 299                                                  get_speed,
 300                                                  "%5.0f",
 301                                                  NULL,
 302                                                  " Kts",
 303                                                  1.0,
 304                                                  HUDS_TOP,
 305                                                  RIGHT_JUST,
 306                                                  SMALL,
 307                                                  0,
 308                                                  TRUE );
 309         break;
 310
 311       case 11:    // Digital Rate of Climb
 312         HIptr = (instr_item *) new instr_label ( 110,
 313                                                  135,
 314                                                   40,
 315                                                   10,
 316                                                  get_climb_rate,
 317                                                  "%5.0f",
 318                                                  " Climb",
 319                                                  NULL,
 320                                                  1.0,
 321                                                  HUDS_TOP,
 322                                                  RIGHT_JUST,
 323                                                  SMALL,
 324                                                  0,
 325                                                  TRUE );
 326         break;
 327
 328       case 12:    // Roll indication diagnostic
 329         HIptr = (instr_item *) new instr_label ( 110,
 330                                                  120,
 331                                                   40,
 332                                                   10,
 333                                                  get_roll,
 334                                                  "%5.2f",
 335                                                  " Roll",
 336                                                  " Deg",
 337                                                  1.0,
 338                                                  HUDS_TOP,
 339                                                  RIGHT_JUST,
 340                                                  SMALL,
 341                                                  0,
 342                                                  TRUE );
 343         break;
 344
 345       case 13:    // Angle of attack diagnostic
 346         HIptr = (instr_item *) new instr_label ( 440,
 347                                                  150,
 348                                                   60,
 349                                                   10,
 350                                                  get_aoa,
 351                                                  "      %5.2f",
 352                                                  "AOA",
 353                                                  " Deg",
 354                                                  1.0,
 355                                                  HUDS_TOP,
 356                                                  RIGHT_JUST,
 357                                                  SMALL,
 358                                                  0,
 359                                                  TRUE );
 360         break;
 361
 362       case 14:
 363         HIptr = (instr_item *) new instr_label ( 440,
 364                                                  135,
 365                                                   60,
 366                                                   10,
 367                                                  get_heading,
 368                                                  " %5.1f",
 369                                                  "Heading ",
 370                                                  " Deg",
 371                                                  1.0,
 372                                                  HUDS_TOP,
 373                                                  RIGHT_JUST,
 374                                                  SMALL,
 375                                                  0,
 376                                                  TRUE );
 377         break;
 378
 379       case 15:
 380         HIptr = (instr_item *) new instr_label ( 440,
 381                                                  120,
 382                                                   60,
 383                                                   10,
 384                                                  get_sideslip,
 385                                                  "%5.2f",
 386                                                  "Sideslip ",
 387                                                  NULL,
 388                                                  1.0,
 389                                                  HUDS_TOP,
 390                                                  RIGHT_JUST,
 391                                                  SMALL,
 392                                                  0,
 393                                                  TRUE );
 394         break;
 395
 396       case 16:
 397         HIptr = (instr_item *) new instr_label( 440,
 398                                                 100,
 399                                                  60,
 400                                                  10,
 401                                                 get_throttleval,
 402                                                 "%5.2f",
 403                                                 "Throttle ",
 404                                                 NULL,
 405                                                  1.0,
 406                                                 HUDS_TOP,
 407                                                 RIGHT_JUST,
 408                                                 SMALL,
 409                                                 0,
 410                                                 TRUE );
 411         break;
 412
 413       case 17:
 414         HIptr = (instr_item *) new instr_label( 440,
 415                                                  85,
 416                                                  60,
 417                                                  10,
 418                                                 get_elevatorval,
 419                                                 "%5.2f",
 420                                                 "Elevator ",
 421                                                 NULL,
 422                                                  1.0,
 423                                                 HUDS_TOP,
 424                                                 RIGHT_JUST,
 425                                                 SMALL,
 426                                                 0,
 427                                                 TRUE );
 428         break;
 429
 430       case 18:
 431         HIptr = (instr_item *) new instr_label( 440,
 432                                                  60,
 433                                                  60,
 434                                                  10,
 435                                                 get_aileronval,
 436                                                 "%5.2f",
 437                                                 "Aileron  ",
 438                                                 NULL,
 439                                                  1.0,
 440                                                 HUDS_TOP,
 441                                                 RIGHT_JUST,
 442                                                 SMALL,
 443                                                 0,
 444                                                 TRUE );
 445         break;
 446
 447
 448       case 19:
 449         HIptr = (instr_item *) new instr_label( 10,
 450                                                 10,
 451                                                 60,
 452                                                 10,
 453                                                  get_frame_rate,
 454                                                 "%.1f",
 455                                                 "Frame rate = ",
 456                                                 NULL,
 457                                                  1.0,
 458                                                 HUDS_TOP,
 459                                                 RIGHT_JUST,
 460                                                 SMALL,
 461                                                 0,
 462                                                 TRUE );
 463         break;
 464
 465       case 20:
 466           switch( current_options.get_tris_or_culled() ) {
 467           case 0:
 468               HIptr = (instr_item *) new instr_label( 10,
 469                                                       25,
 470                                                       90,
 471                                                       10,
 472                                                       get_vfc_tris_drawn,
 473                                                       "%.0f",
 474                                                       "Tris Rendered = ",
 475                                                       NULL,
 476                                                       1.0,
 477                                                       HUDS_TOP,
 478                                                       RIGHT_JUST,
 479                                                       SMALL,
 480                                                       0,
 481                                                       TRUE );
 482               break;
 483           case 1:
 484               HIptr = (instr_item *) new instr_label( 10,
 485                                                       25,
 486                                                       90,
 487                                                       10,
 488                                                       get_vfc_ratio,
 489                                                       "%.2f",
 490                                                       "VFC Ratio = ",
 491                                                       NULL,
 492                                                       1.0,
 493                                                       HUDS_TOP,
 494                                                       RIGHT_JUST,
 495                                                       SMALL,
 496                                                       0,
 497                                                       TRUE );
 498               break;
 499           }
 500           break;
 501
 502       case 21:
 503         HIptr = (instr_item *) new instr_label( 10,
 504                                                 40,
 505                                                 90,
 506                                                 10,
 507                                                 get_fov,
 508                                                 "%.1f",
 509                                                 "FOV = ",
 510                                                 NULL,
 511                                                 1.0,
 512                                                 HUDS_TOP,
 513                                                 RIGHT_JUST,
 514                                                 SMALL,
 515                                                 0,
 516                                                 TRUE );
 517         break;
 518
 519       default:
 520         HIptr = 0;;
 521       }
 522     if( HIptr ) {                   // Anything to install?
 523       HUD_deque.insert( HUD_deque.begin(), HIptr);
 524       }
 525     index++;
 526     }
 527   while( HIptr );
 528
 529   return 0;  // For now. Later we may use this for an error code.
 530 }
 531
 532 int fgHUDInit2( fgAIRCRAFT * /* current_aircraft */ )
 533 {
 534   instr_item *HIptr;
 535   int index;
 536
 537   fgPrintf( FG_COCKPIT, FG_INFO, "Initializing current aircraft HUD\n" );
 538
 539   HUD_deque.erase( HUD_deque.begin(), HUD_deque.end());  // empty the HUD deque
 540
 541 //  hud->code = 1;
 542 //  hud->status = 0;
 543
 544   // For now lets just hardcode the hud here.
 545   // In the future, hud information has to come from the same place
 546   // aircraft information came from.
 547
 548 //  fgHUDSetTimeMode( hud, NIGHT );
 549 //  fgHUDSetBrightness( hud, BRT_LIGHT );
 550
 551 //  index = 0;
 552   index = 19;
 553
 554   do {
 555     switch ( index ) {
 556       case 0:     // TBI
 557         HIptr = (instr_item *) new fgTBI_instr( 270, 100, 60, 10 );
 558         break;
 559
 560       case 1:     // Artificial Horizon
 561         HIptr = (instr_item *) new HudLadder( 240, 195, 120, 180 );
 562         break;
 563
 564       case 2:    // KIAS
 565         HIptr = (instr_item *) new hud_card( 130,
 566                                              170,
 567                                               28,
 568                                              200,
 569                                              get_speed,
 570                                              HUDS_LEFT | HUDS_VERT,
 571                                              200.0, 0.0,
 572                                              1.0,
 573                                              10,  5,
 574                                              0,
 575                                              0,
 576                                              50.0,
 577                                              true);
 578
 579         break;
 580
 581       case 3:    // Radio Altimeter
 582         HIptr = (instr_item *) new hud_card( 420,
 583                                              195,
 584                                               25,
 585                                              150,
 586                                              get_agl,
 587                                              HUDS_LEFT | HUDS_VERT,
 588                                              1000, 0,
 589                                              1.0,
 590                                              25,    5,
 591                                              0,
 592                                              0,
 593                                              200.0,
 594                                              true);
 595         break;
 596
 597       case 4:    // GYRO COMPASS
 598         HIptr = (instr_item *) new hud_card( 200,
 599                                              375,
 600                                              200,
 601                                               28,
 602                                              get_heading,
 603                                              HUDS_TOP,
 604                                              360, 0,
 605                                                1.0,
 606                                                5,   1,
 607                                              360,
 608                                                0,
 609                                               25,
 610                                              true);
 611         break;
 612
 613       case 5:    // AMSL
 614         HIptr = (instr_item *) new hud_card( 460,
 615                                              170,
 616                                               35,
 617                                              200,
 618                                              get_altitude,
 619                                              HUDS_RIGHT | HUDS_VERT,
 620                                              15000, 0,
 621                                              1.0,
 622                                              100,  25,
 623                                              0,
 624                                              0,
 625                                              250,
 626                                              true);
 627         break;
 628
 629       case 6:
 630         HIptr = (instr_item *) new  guage_instr( 250,            // x
 631                                                  350,            // y
 632                                                  100,            // width
 633                                                   20,            // height
 634                                                  get_aileronval, // data source
 635                                                  HUDS_BOTTOM | HUDS_NOTEXT,
 636                                                  100.0,
 637                                                  +1.0,
 638                                                  -1.0);
 639         break;
 640
 641       case 7:
 642         HIptr = (instr_item *) new  guage_instr( 170,             // x
 643                                                  225,             // y
 644                                                   20,             // width
 645                                                  100,             // height
 646                                                  get_elevatorval, // data source
 647                                                  HUDS_RIGHT | HUDS_VERT | HUDS_NOTEXT,
 648                                                 -100.0,           // Scale data
 649                                                   +1.0,           // Data Range
 650                                                   -1.0);
 651         break;
 652
 653       case 8:
 654         HIptr = (instr_item *) new  guage_instr( 250,             // x
 655                                                  200,             // y
 656                                                  100,             // width
 657                                                   20,             // height
 658                                                  get_rudderval,   // data source
 659                                                  HUDS_TOP | HUDS_NOTEXT,
 660                                                  100.0,
 661                                                  +1.0,
 662                                                  -1.0);
 663         break;
 664
 665       case 9:
 666         HIptr = (instr_item *) new  guage_instr( 100,             // x
 667                                                  190,
 668                                                   20,
 669                                                  160,             // height
 670                                                  get_throttleval, // data source
 671                                                  HUDS_VERT | HUDS_RIGHT | HUDS_NOTEXT,
 672                                                  100.0,
 673                                                    1.0,
 674                                                    0.0);
 675         break;
 676
 677       case 10:    // Digital KIAS
 678         HIptr = (instr_item *) new instr_label ( 110,
 679                                                  150,
 680                                                   40,
 681                                                   30,
 682                                                  get_speed,
 683                                                  "%5.0f",
 684                                                  NULL,
 685                                                  " Kts",
 686                                                  1.0,
 687                                                  HUDS_TOP,
 688                                                  RIGHT_JUST,
 689                                                  SMALL,
 690                                                  0,
 691                                                  TRUE );
 692         break;
 693
 694       case 11:    // Digital Rate of Climb
 695         HIptr = (instr_item *) new instr_label ( 110,
 696                                                  135,
 697                                                   40,
 698                                                   10,
 699                                                  get_altitude,
 700                                                  "Climb  %5.0f",
 701                                                  NULL,
 702                                                  " m",
 703                                                  1.0,
 704                                                  HUDS_TOP,
 705                                                  LEFT_JUST,
 706                                                  SMALL,
 707                                                  0,
 708                                                  TRUE );
 709         break;
 710
 711       case 12:    // Roll indication diagnostic
 712         HIptr = (instr_item *) new instr_label ( 110,
 713                                                  120,
 714                                                   40,
 715                                                   10,
 716                                                  get_roll,
 717                                                  "%5.2f",
 718                                                  " Roll",
 719                                                  " Deg",
 720                                                  1.0,
 721                                                  HUDS_TOP,
 722                                                  RIGHT_JUST,
 723                                                  SMALL,
 724                                                  0,
 725                                                  TRUE );
 726         break;
 727
 728       case 13:    // Angle of attack diagnostic
 729         HIptr = (instr_item *) new instr_label ( 440,
 730                                                  150,
 731                                                   60,
 732                                                   10,
 733                                                  get_aoa,
 734                                                  "      %5.2f",
 735                                                  "AOA",
 736                                                  " Deg",
 737                                                  1.0,
 738                                                  HUDS_TOP,
 739                                                  RIGHT_JUST,
 740                                                  SMALL,
 741                                                  0,
 742                                                  TRUE );
 743         break;
 744
 745       case 14:
 746         HIptr = (instr_item *) new instr_label ( 440,
 747                                                  135,
 748                                                   60,
 749                                                   10,
 750                                                  get_heading,
 751                                                  " %5.1f",
 752                                                  "Heading ",
 753                                                  " Deg",
 754                                                  1.0,
 755                                                  HUDS_TOP,
 756                                                  RIGHT_JUST,
 757                                                  SMALL,
 758                                                  0,
 759                                                  TRUE );
 760         break;
 761
 762       case 15:
 763         HIptr = (instr_item *) new instr_label ( 440,
 764                                                  120,
 765                                                   60,
 766                                                   10,
 767                                                  get_sideslip,
 768                                                  "%5.2f",
 769                                                  "Sideslip ",
 770                                                  NULL,
 771                                                  1.0,
 772                                                  HUDS_TOP,
 773                                                  RIGHT_JUST,
 774                                                  SMALL,
 775                                                  0,
 776                                                  TRUE );
 777         break;
 778
 779       case 16:
 780         HIptr = (instr_item *) new instr_label( 440,
 781                                                 100,
 782                                                  60,
 783                                                  10,
 784                                                 get_throttleval,
 785                                                 "%5.2f",
 786                                                 "Throttle ",
 787                                                 NULL,
 788                                                  1.0,
 789                                                 HUDS_TOP,
 790                                                 RIGHT_JUST,
 791                                                 SMALL,
 792                                                 0,
 793                                                 TRUE );
 794         break;
 795
 796       case 17:
 797         HIptr = (instr_item *) new instr_label( 440,
 798                                                  85,
 799                                                  60,
 800                                                  10,
 801                                                 get_elevatorval,
 802                                                 "%5.2f",
 803                                                 "Elevator ",
 804                                                 NULL,
 805                                                  1.0,
 806                                                 HUDS_TOP,
 807                                                 RIGHT_JUST,
 808                                                 SMALL,
 809                                                 0,
 810                                                 TRUE );
 811         break;
 812
 813       case 18:
 814         HIptr = (instr_item *) new instr_label( 440,
 815                                                  60,
 816                                                  60,
 817                                                  10,
 818                                                 get_aileronval,
 819                                                 "%5.2f",
 820                                                 "Aileron  ",
 821                                                 NULL,
 822                                                  1.0,
 823                                                 HUDS_TOP,
 824                                                 RIGHT_JUST,
 825                                                 SMALL,
 826                                                 0,
 827                                                 TRUE );
 828         break;
 829
 830
 831       case 19:
 832         HIptr = (instr_item *) new instr_label( 10,
 833                                                 10,
 834                                                 60,
 835                                                 10,
 836                                                  get_frame_rate,
 837                                                 "%.1f",
 838                                                 "Frame rate = ",
 839                                                 NULL,
 840                                                  1.0,
 841                                                 HUDS_TOP,
 842                                                 RIGHT_JUST,
 843                                                 SMALL,
 844                                                 0,
 845                                                 TRUE );
 846         break;
 847
 848       case 20:
 849                   switch( current_options.get_tris_or_culled() ) {
 850                           case 0:
 851                                   HIptr = (instr_item *) new instr_label( 10,
 852                                           25,
 853                                           90,
 854                                           10,
 855                                           get_vfc_tris_drawn,
 856                                           "%.0f",
 857                                           "Tris Rendered = ",
 858                                           NULL,
 859                                           1.0,
 860                                           HUDS_TOP,
 861                                           RIGHT_JUST,
 862                                           SMALL,
 863                                           0,
 864                                           TRUE );
 865                                   break;
 866                           case 1:
 867                                   HIptr = (instr_item *) new instr_label( 10,
 868                                           25,
 869                                           90,
 870                                           10,
 871                                           get_vfc_ratio,
 872                                           "%.2f",
 873                                           "VFC Ratio = ",
 874                                           NULL,
 875                                           1.0,
 876                                           HUDS_TOP,
 877                                           RIGHT_JUST,
 878                                           SMALL,
 879                                           0,
 880                                           TRUE );
 881                                   break;
 882                   }
 883                   break;
 884
 885       case 21:
 886         HIptr = (instr_item *) new instr_label( 10,
 887                                                 40,
 888                                                 90,
 889                                                 10,
 890                                                 get_fov,
 891                                                 "%.1f",
 892                                                 "FOV = ",
 893                                                 NULL,
 894                                                  1.0,
 895                                                 HUDS_TOP,
 896                                                 RIGHT_JUST,
 897                                                 SMALL,
 898                                                 0,
 899                                                 TRUE );
 900         break;
 901
 902       default:
 903         HIptr = 0;;
 904       }
 905     if( HIptr ) {                   // Anything to install?
 906       HUD_deque.insert( HUD_deque.begin(), HIptr);
 907       }
 908     index++;
 909     }
 910   while( HIptr );
 911
 912   return 0;  // For now. Later we may use this for an error code.
 913 }
 914
 915 int global_day_night_switch = DAY;
 916
 917 void HUD_brightkey( bool incr_bright )
 918 {
 919 instr_item *pHUDInstr = HUD_deque[0];
 920 int brightness        = pHUDInstr->get_brightness();
 921
 922   if( current_options.get_hud_status() ) {
 923     if( incr_bright ) {
 924       switch (brightness) {
 925         case BRT_LIGHT:
 926               current_options.set_hud_status(0);
 927           break;
 928
 929         case BRT_MEDIUM:
 930           brightness = BRT_LIGHT;
 931           break;
 932
 933         case BRT_DARK:
 934           brightness = BRT_MEDIUM;
 935           break;
 936
 937         case BRT_BLACK:
 938           brightness = BRT_DARK;
 939           break;
 940
 941         default:
 942           brightness = BRT_BLACK;
 943         }
 944       }
 945     else {
 946       switch (brightness) {
 947         case BRT_LIGHT:
 948           brightness = BRT_MEDIUM;
 949           break;
 950
 951         case BRT_MEDIUM:
 952           brightness = BRT_DARK;
 953           break;
 954
 955         case BRT_DARK:
 956           brightness = BRT_BLACK;
 957           break;
 958
 959         case BRT_BLACK:
 960         default:
 961               current_options.set_hud_status(0);
 962         }
 963       }
 964     }
 965   else {
 966     current_options.set_hud_status(1);
 967     if( incr_bright ) {
 968       if( DAY == global_day_night_switch ) {
 969         brightness = BRT_BLACK;
 970         }
 971       else {
 972         brightness = BRT_DARK;
 973         global_day_night_switch = DAY;
 974         }
 975       }
 976     else {
 977       if( NIGHT == global_day_night_switch ) {
 978         brightness = BRT_DARK;
 979         }
 980       else {
 981         brightness = BRT_MEDIUM;
 982         global_day_night_switch = NIGHT;
 983         }
 984       }
 985     }
 986   pHUDInstr->SetBrightness( brightness );
 987 }
 988
 989 // fgUpdateHUD
 990 //
 991 // Performs a once around the list of calls to instruments installed in
 992 // the HUD object with requests for redraw. Kinda. It will when this is
 993 // all C++.
 994 //
 995 void fgUpdateHUD( void ) {
 996   int i;
 997   int brightness;
 998 //  int day_night_sw = current_aircraft.controls->day_night_switch;
 999   int day_night_sw = global_day_night_switch;
1000   int hud_displays = HUD_deque.size();
1001   instr_item *pHUDInstr;
1002
1003   if( !hud_displays ) {  // Trust everyone, but ALWAYS cut the cards!
1004     return;
1005     }
1006
1007   pHUDInstr = HUD_deque[0];
1008   brightness = pHUDInstr->get_brightness();
1009 //  brightness = HUD_deque.at(0)->get_brightness();
1010
1011   glMatrixMode(GL_PROJECTION);
1012   glPushMatrix();
1013
1014   glLoadIdentity();
1015   gluOrtho2D(0, 640, 0, 480);
1016   glMatrixMode(GL_MODELVIEW);
1017   glPushMatrix();
1018   glLoadIdentity();
1019
1020   glColor3f(1.0, 1.0, 1.0);
1021   glIndexi(7);
1022
1023   glDisable(GL_DEPTH_TEST);
1024   glDisable(GL_LIGHTING);
1025
1026   glLineWidth(1);
1027
1028   deque < instr_item * > :: iterator current;
1029   deque < instr_item * > :: iterator last;
1030
1031   current = HUD_deque.begin();
1032   last = HUD_deque.end();
1033   while ( current != last ) {
1034     pHUDInstr = *current;
1035     current++;
1036
1037     // for( i = hud_displays; i; --i) { // Draw everything
1038     // if( HUD_deque.at(i)->enabled()) {
1039     // pHUDInstr = HUD_deque[i - 1];
1040     if( pHUDInstr->enabled()) {
1041                                    // We should to respond to a dial instead
1042                                    // or as well to the of time of day. Of
1043                                    // course, we have no dial!
1044       if( day_night_sw == DAY) {
1045         switch (brightness) {
1046           case BRT_LIGHT:
1047             glColor3f (0.1, 0.9, 0.1);
1048             break;
1049
1050           case BRT_MEDIUM:
1051             glColor3f (0.1, 0.7, 0.0);
1052             break;
1053
1054           case BRT_DARK:
1055             glColor3f (0.0, 0.5, 0.0);
1056             break;
1057
1058           case BRT_BLACK:
1059             glColor3f( 0.0, 0.0, 0.0);
1060             break;
1061
1062           default:;
1063             }
1064           }
1065         else {
1066           if( day_night_sw == NIGHT) {
1067             switch (brightness) {
1068               case BRT_LIGHT:
1069                 glColor3f (0.9, 0.1, 0.1);
1070                 break;
1071
1072               case BRT_MEDIUM:
1073                 glColor3f (0.7, 0.0, 0.1);
1074                 break;
1075
1076               case BRT_DARK:
1077               default:
1078                 glColor3f (0.5, 0.0, 0.0);
1079               }
1080             }
1081           else {     // Just in case default
1082             glColor3f (0.1, 0.9, 0.1);
1083             }
1084           }
1085     //  fgPrintf( FG_COCKPIT, FG_DEBUG, "HUD Code %d  Status %d\n",
1086     //            hud->code, hud->status );
1087       pHUDInstr->draw();
1088 //      HUD_deque.at(i)->draw(); // Responsible for broken or fixed variants.
1089                               // No broken displays honored just now.
1090       }
1091     }
1092
1093   glEnable(GL_DEPTH_TEST);
1094   glEnable(GL_LIGHTING);
1095   glMatrixMode(GL_PROJECTION);
1096   glPopMatrix();
1097   glMatrixMode(GL_MODELVIEW);
1098   glPopMatrix();
1099 }
1100
1101 /* $Log$
1102 /* Revision 1.21  1998/09/29 02:01:07  curt
1103 /* Added a "rate of climb" indicator.
1104 /*
1105  * Revision 1.20  1998/08/24 20:05:16  curt
1106  * Added a second minimalistic HUD.
1107  * Added code to display the number of triangles rendered.
1108  *
1109  * Revision 1.19  1998/07/30 23:44:05  curt
1110  * Tweaks for sgi building.
1111  *
1112  * Revision 1.18  1998/07/20 12:47:55  curt
1113  * Replace the hud rendering for loop (which linearly searches the the hud
1114  * list to find the entry with the proper position) with a simple linear
1115  * traversal using an "iterator."
1116  *
1117  * Revision 1.17  1998/07/13 21:28:02  curt
1118  * Converted the aoa scale to a radio altimeter.
1119  *
1120  * Revision 1.16  1998/07/13 21:00:47  curt
1121  * Integrated Charlies latest HUD updates.
1122  * Wrote access functions for current fgOPTIONS.
1123  *
1124  * Revision 1.15  1998/07/08 14:41:08  curt
1125  * Renamed polar3d.h to polar3d.hxx
1126  *
1127  * Revision 1.14  1998/07/06 21:31:20  curt
1128  * Removed an extraneous ^M.
1129  *
1130  * Revision 1.13  1998/07/03 13:16:28  curt
1131  * Added Charlie Hotchkiss's HUD updates and improvementes.
1132  *
1133  * Revision 1.11  1998/06/05 18:17:10  curt
1134  * Added the declaration of memmove needed by the stl which apparently
1135  * solaris only defines for cc compilations and not for c++ (__STDC__)
1136  *
1137  * Revision 1.10  1998/05/17 16:58:12  curt
1138  * Added a View Frustum Culling ratio display to the hud.
1139  *
1140  * Revision 1.9  1998/05/16 13:04:14  curt
1141  * New updates from Charlie Hotchkiss.
1142  *
1143  * Revision 1.8  1998/05/13 18:27:54  curt
1144  * Added an fov to hud display.
1145  *
1146  * Revision 1.7  1998/05/11 18:13:11  curt
1147  * Complete C++ rewrite of all cockpit code by Charlie Hotchkiss.
1148  *
1149  * Revision 1.22  1998/04/18 04:14:02  curt
1150  * Moved fg_debug.c to it's own library.
1151  *
1152  * Revision 1.21  1998/04/03 21:55:28  curt
1153  * Converting to Gnu autoconf system.
1154  * Tweaks to hud.c
1155  *
1156  * Revision 1.20  1998/03/09 22:48:40  curt
1157  * Minor "formatting" tweaks.
1158  *
1159  * Revision 1.19  1998/02/23 20:18:28  curt
1160  * Incorporated Michele America's hud changes.
1161  *
1162  * Revision 1.18  1998/02/21 14:53:10  curt
1163  * Added Charlie's HUD changes.
1164  *
1165  * Revision 1.17  1998/02/20 00:16:21  curt
1166  * Thursday's tweaks.
1167  *
1168  * Revision 1.16  1998/02/19 13:05:49  curt
1169  * Incorporated some HUD tweaks from Michelle America.
1170  * Tweaked the sky's sunset/rise colors.
1171  * Other misc. tweaks.
1172  *
1173  * Revision 1.15  1998/02/16 13:38:39  curt
1174  * Integrated changes from Charlie Hotchkiss.
1175  *
1176  * Revision 1.14  1998/02/12 21:59:41  curt
1177  * Incorporated code changes contributed by Charlie Hotchkiss
1178  * <chotchkiss@namg.us.anritsu.com>
1179  *
1180  * Revision 1.12  1998/02/09 15:07:48  curt
1181  * Minor tweaks.
1182  *
1183  * Revision 1.11  1998/02/07 15:29:34  curt
1184  * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
1185  * <chotchkiss@namg.us.anritsu.com>
1186  *
1187  * Revision 1.10  1998/02/03 23:20:14  curt
1188  * Lots of little tweaks to fix various consistency problems discovered by
1189  * Solaris' CC.  Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
1190  * passed arguments along to the real printf().  Also incorporated HUD changes
1191  * by Michele America.
1192  *
1193  * Revision 1.9  1998/01/31 00:43:04  curt
1194  * Added MetroWorks patches from Carmen Volpe.
1195  *
1196  * Revision 1.8  1998/01/27 00:47:51  curt
1197  * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
1198  * system and commandline/config file processing code.
1199  *
1200  * Revision 1.7  1998/01/19 18:40:20  curt
1201  * Tons of little changes to clean up the code and to remove fatal errors
1202  * when building with the c++ compiler.
1203  *
1204  * Revision 1.6  1997/12/15 23:54:34  curt
1205  * Add xgl wrappers for debugging.
1206  * Generate terrain normals on the fly.
1207  *
1208  * Revision 1.5  1997/12/10 22:37:39  curt
1209  * Prepended "fg" on the name of all global structures that didn't have it yet.
1210  * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
1211  *
1212  * Revision 1.4  1997/09/23 00:29:32  curt
1213  * Tweaks to get things to compile with gcc-win32.
1214  *
1215  * Revision 1.3  1997/09/05 14:17:26  curt
1216  * More tweaking with stars.
1217  *
1218  * Revision 1.2  1997/09/04 02:17:30  curt
1219  * Shufflin' stuff.
1220  *
1221  * Revision 1.1  1997/08/29 18:03:22  curt
1222  * Initial revision.
1223  *
1224  */