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