OpenAL32/alState.c

   1 /**
   2  * OpenAL cross platform audio library
   3  * Copyright (C) 1999-2000 by authors.
   4  * This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Library General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  *  License along with this library; if not, write to the
  16  *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  *  Boston, MA  02111-1307, USA.
  18  * Or go to http://www.gnu.org/copyleft/lgpl.html
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include "alMain.h"
  25 #include "AL/alc.h"
  26 #include "alError.h"
  27 #include "alState.h"
  28
  29 static const ALchar alVendor[] = "OpenAL Community";
  30 static const ALchar alVersion[] = "1.1 ALSOFT "ALSOFT_VERSION;
  31 static const ALchar alRenderer[] = "OpenAL Soft";
  32
  33 // Error Messages
  34 static const ALchar alNoError[] = "No Error";
  35 static const ALchar alErrInvalidName[] = "Invalid Name";
  36 static const ALchar alErrInvalidEnum[] = "Invalid Enum";
  37 static const ALchar alErrInvalidValue[] = "Invalid Value";
  38 static const ALchar alErrInvalidOp[] = "Invalid Operation";
  39 static const ALchar alErrOutOfMemory[] = "Out of Memory";
  40
  41 ALAPI ALvoid ALAPIENTRY alEnable(ALenum capability)
  42 {
  43     ALCcontext *Context;
  44
  45     Context=alcGetCurrentContext();
  46     if (Context)
  47     {
  48         SuspendContext(Context);
  49
  50         switch (capability)
  51         {
  52             default:
  53                 alSetError(AL_INVALID_ENUM);
  54                 break;
  55         }
  56
  57         ProcessContext(Context);
  58     }
  59     else
  60     {
  61         // Invalid Context
  62         alSetError(AL_INVALID_OPERATION);
  63     }
  64 }
  65
  66 ALAPI ALvoid ALAPIENTRY alDisable(ALenum capability)
  67 {
  68     ALCcontext *Context;
  69
  70     Context=alcGetCurrentContext();
  71     if (Context)
  72     {
  73         SuspendContext(Context);
  74
  75         switch (capability)
  76         {
  77             default:
  78                 alSetError(AL_INVALID_ENUM);
  79                 break;
  80         }
  81
  82         ProcessContext(Context);
  83     }
  84     else
  85     {
  86         // Invalid Context
  87         alSetError(AL_INVALID_OPERATION);
  88     }
  89 }
  90
  91 ALAPI ALboolean ALAPIENTRY alIsEnabled(ALenum capability)
  92 {
  93     ALCcontext *Context;
  94     ALboolean value=AL_FALSE;
  95
  96     Context=alcGetCurrentContext();
  97     if (Context)
  98     {
  99         SuspendContext(Context);
 100
 101         switch (capability)
 102         {
 103             default:
 104                 alSetError(AL_INVALID_ENUM);
 105                 break;
 106         }
 107
 108         ProcessContext(Context);
 109     }
 110     else
 111     {
 112         // Invalid Context
 113         alSetError(AL_INVALID_OPERATION);
 114     }
 115
 116     return value;
 117 }
 118
 119 ALAPI ALboolean ALAPIENTRY alGetBoolean(ALenum pname)
 120 {
 121     ALCcontext *Context;
 122     ALboolean value=AL_FALSE;
 123
 124     Context=alcGetCurrentContext();
 125     if (Context)
 126     {
 127         SuspendContext(Context);
 128
 129         switch (pname)
 130         {
 131             case AL_DOPPLER_FACTOR:
 132                 if (Context->DopplerFactor != 0.0f)
 133                     value = AL_TRUE;
 134                 break;
 135
 136             case AL_DOPPLER_VELOCITY:
 137                 if (Context->DopplerVelocity != 0.0f)
 138                     value = AL_TRUE;
 139                 break;
 140
 141             case AL_DISTANCE_MODEL:
 142                 if (Context->DistanceModel == AL_INVERSE_DISTANCE_CLAMPED)
 143                     value = AL_TRUE;
 144                 break;
 145
 146             case AL_SPEED_OF_SOUND:
 147                 if (Context->flSpeedOfSound != 0.0f)
 148                     value = AL_TRUE;
 149                 break;
 150
 151             default:
 152                 alSetError(AL_INVALID_ENUM);
 153                 break;
 154         }
 155
 156         ProcessContext(Context);
 157     }
 158     else
 159     {
 160         // Invalid Context
 161         alSetError(AL_INVALID_OPERATION);
 162     }
 163
 164     return value;
 165 }
 166
 167 ALAPI ALdouble ALAPIENTRY alGetDouble(ALenum pname)
 168 {
 169     ALCcontext *Context;
 170     ALdouble value = 0.0;
 171
 172     Context=alcGetCurrentContext();
 173     if (Context)
 174     {
 175         SuspendContext(Context);
 176
 177         switch (pname)
 178         {
 179             case AL_DOPPLER_FACTOR:
 180                 value = (double)Context->DopplerFactor;
 181                 break;
 182
 183             case AL_DOPPLER_VELOCITY:
 184                 value = (double)Context->DopplerVelocity;
 185                 break;
 186
 187             case AL_DISTANCE_MODEL:
 188                 value = (double)Context->DistanceModel;
 189                 break;
 190
 191             case AL_SPEED_OF_SOUND:
 192                 value = (double)Context->flSpeedOfSound;
 193                 break;
 194
 195             default:
 196                 alSetError(AL_INVALID_ENUM);
 197                 break;
 198         }
 199
 200         ProcessContext(Context);
 201     }
 202     else
 203     {
 204         // Invalid Context
 205         alSetError(AL_INVALID_OPERATION);
 206     }
 207
 208     return value;
 209 }
 210
 211 ALAPI ALfloat ALAPIENTRY alGetFloat(ALenum pname)
 212 {
 213     ALCcontext *Context;
 214     ALfloat value = 0.0f;
 215
 216     Context=alcGetCurrentContext();
 217     if (Context)
 218     {
 219         SuspendContext(Context);
 220
 221         switch (pname)
 222         {
 223             case AL_DOPPLER_FACTOR:
 224                 value = Context->DopplerFactor;
 225                 break;
 226
 227             case AL_DOPPLER_VELOCITY:
 228                 value = Context->DopplerVelocity;
 229                 break;
 230
 231             case AL_DISTANCE_MODEL:
 232                 value = (float)Context->DistanceModel;
 233                 break;
 234
 235             case AL_SPEED_OF_SOUND:
 236                 value = Context->flSpeedOfSound;
 237                 break;
 238
 239             default:
 240                 alSetError(AL_INVALID_ENUM);
 241                 break;
 242         }
 243
 244         ProcessContext(Context);
 245     }
 246     else
 247     {
 248         // Invalid Context
 249         alSetError(AL_INVALID_OPERATION);
 250     }
 251
 252     return value;
 253 }
 254
 255 ALAPI ALint ALAPIENTRY alGetInteger(ALenum pname)
 256 {
 257     ALCcontext *Context;
 258     ALint value = 0;
 259
 260     Context=alcGetCurrentContext();
 261     if (Context)
 262     {
 263         SuspendContext(Context);
 264
 265         switch (pname)
 266         {
 267             case AL_DOPPLER_FACTOR:
 268                 value = (ALint)Context->DopplerFactor;
 269                 break;
 270
 271             case AL_DOPPLER_VELOCITY:
 272                 value = (ALint)Context->DopplerVelocity;
 273                 break;
 274
 275             case AL_DISTANCE_MODEL:
 276                 value = (ALint)Context->DistanceModel;
 277                 break;
 278
 279             case AL_SPEED_OF_SOUND:
 280                 value = (ALint)Context->flSpeedOfSound;
 281                 break;
 282
 283             default:
 284                 alSetError(AL_INVALID_ENUM);
 285                 break;
 286         }
 287
 288         ProcessContext(Context);
 289     }
 290     else
 291     {
 292         // Invalid Context
 293         alSetError(AL_INVALID_OPERATION);
 294     }
 295
 296     return value;
 297 }
 298
 299 ALAPI ALvoid ALAPIENTRY alGetBooleanv(ALenum pname,ALboolean *data)
 300 {
 301     ALCcontext *Context;
 302
 303     Context=alcGetCurrentContext();
 304     if (Context)
 305     {
 306         SuspendContext(Context);
 307
 308         if (data)
 309         {
 310             switch (pname)
 311             {
 312                 case AL_DOPPLER_FACTOR:
 313                     *data = (ALboolean)((Context->DopplerFactor != 0.0f) ? AL_TRUE : AL_FALSE);
 314                     break;
 315
 316                 case AL_DOPPLER_VELOCITY:
 317                     *data = (ALboolean)((Context->DopplerVelocity != 0.0f) ? AL_TRUE : AL_FALSE);
 318                     break;
 319
 320                 case AL_DISTANCE_MODEL:
 321                     *data = (ALboolean)((Context->DistanceModel == AL_INVERSE_DISTANCE_CLAMPED) ? AL_TRUE : AL_FALSE);
 322                     break;
 323
 324                 case AL_SPEED_OF_SOUND:
 325                     *data = (ALboolean)((Context->flSpeedOfSound != 0.0f) ? AL_TRUE : AL_FALSE);
 326                     break;
 327
 328                 default:
 329                     alSetError(AL_INVALID_ENUM);
 330                     break;
 331             }
 332         }
 333         else
 334         {
 335             // data is a NULL pointer
 336             alSetError(AL_INVALID_VALUE);
 337         }
 338
 339         ProcessContext(Context);
 340     }
 341     else
 342     {
 343         // Invalid Context
 344         alSetError(AL_INVALID_OPERATION);
 345     }
 346
 347     return;
 348 }
 349
 350 ALAPI ALvoid ALAPIENTRY alGetDoublev(ALenum pname,ALdouble *data)
 351 {
 352     ALCcontext *Context;
 353
 354     Context=alcGetCurrentContext();
 355     if (Context)
 356     {
 357         SuspendContext(Context);
 358
 359         if (data)
 360         {
 361             switch (pname)
 362             {
 363                 case AL_DOPPLER_FACTOR:
 364                     *data = (double)Context->DopplerFactor;
 365                     break;
 366
 367                 case AL_DOPPLER_VELOCITY:
 368                     *data = (double)Context->DopplerVelocity;
 369                     break;
 370
 371                 case AL_DISTANCE_MODEL:
 372                     *data = (double)Context->DistanceModel;
 373                     break;
 374
 375                 case AL_SPEED_OF_SOUND:
 376                     *data = (double)Context->flSpeedOfSound;
 377                     break;
 378
 379                 default:
 380                     alSetError(AL_INVALID_ENUM);
 381                     break;
 382             }
 383         }
 384         else
 385         {
 386             // data is a NULL pointer
 387             alSetError(AL_INVALID_VALUE);
 388         }
 389
 390         ProcessContext(Context);
 391     }
 392     else
 393     {
 394         // Invalid Context
 395         alSetError(AL_INVALID_OPERATION);
 396     }
 397
 398     return;
 399 }
 400
 401 ALAPI ALvoid ALAPIENTRY alGetFloatv(ALenum pname,ALfloat *data)
 402 {
 403     ALCcontext *Context;
 404
 405     Context=alcGetCurrentContext();
 406     if (Context)
 407     {
 408         SuspendContext(Context);
 409
 410         if (data)
 411         {
 412             switch (pname)
 413             {
 414                 case AL_DOPPLER_FACTOR:
 415                     *data = Context->DopplerFactor;
 416                     break;
 417
 418                 case AL_DOPPLER_VELOCITY:
 419                     *data = Context->DopplerVelocity;
 420                     break;
 421
 422                 case AL_DISTANCE_MODEL:
 423                     *data = (float)Context->DistanceModel;
 424                     break;
 425
 426                 case AL_SPEED_OF_SOUND:
 427                     *data = Context->flSpeedOfSound;
 428                     break;
 429
 430                 default:
 431                     alSetError(AL_INVALID_ENUM);
 432                     break;
 433             }
 434         }
 435         else
 436         {
 437             // data is a NULL pointer
 438             alSetError(AL_INVALID_VALUE);
 439         }
 440
 441         ProcessContext(Context);
 442     }
 443     else
 444     {
 445         // Invalid Context
 446         alSetError(AL_INVALID_OPERATION);
 447     }
 448
 449     return;
 450 }
 451
 452 ALAPI ALvoid ALAPIENTRY alGetIntegerv(ALenum pname,ALint *data)
 453 {
 454     ALCcontext *Context;
 455
 456     Context=alcGetCurrentContext();
 457     if (Context)
 458     {
 459         SuspendContext(Context);
 460
 461         if (data)
 462         {
 463             switch (pname)
 464             {
 465                 case AL_DOPPLER_FACTOR:
 466                     *data = (ALint)Context->DopplerFactor;
 467                     break;
 468
 469                 case AL_DOPPLER_VELOCITY:
 470                     *data = (ALint)Context->DopplerVelocity;
 471                     break;
 472
 473                 case AL_DISTANCE_MODEL:
 474                     *data = (ALint)Context->DistanceModel;
 475                     break;
 476
 477                 case AL_SPEED_OF_SOUND:
 478                     *data = (ALint)Context->flSpeedOfSound;
 479                     break;
 480
 481                 default:
 482                     alSetError(AL_INVALID_ENUM);
 483                     break;
 484             }
 485         }
 486         else
 487         {
 488             // data is a NULL pointer
 489             alSetError(AL_INVALID_VALUE);
 490         }
 491
 492         ProcessContext(Context);
 493     }
 494     else
 495     {
 496         // Invalid Context
 497         alSetError(AL_INVALID_OPERATION);
 498     }
 499
 500     return;
 501 }
 502
 503 ALAPI const ALchar* ALAPIENTRY alGetString(ALenum pname)
 504 {
 505     const ALchar *value;
 506     ALCcontext *pContext;
 507
 508     pContext = alcGetCurrentContext();
 509     if(!pContext)
 510     {
 511         alSetError(AL_INVALID_OPERATION);
 512         return NULL;
 513     }
 514
 515     SuspendContext(pContext);
 516
 517     switch(pname)
 518     {
 519         case AL_VENDOR:
 520             value=alVendor;
 521             break;
 522
 523         case AL_VERSION:
 524             value=alVersion;
 525             break;
 526
 527         case AL_RENDERER:
 528             value=alRenderer;
 529             break;
 530
 531         case AL_EXTENSIONS:
 532             value=pContext->ExtensionList;//alExtensions;
 533             break;
 534
 535         case AL_NO_ERROR:
 536             value=alNoError;
 537             break;
 538
 539         case AL_INVALID_NAME:
 540             value=alErrInvalidName;
 541             break;
 542
 543         case AL_INVALID_ENUM:
 544             value=alErrInvalidEnum;
 545             break;
 546
 547         case AL_INVALID_VALUE:
 548             value=alErrInvalidValue;
 549             break;
 550
 551         case AL_INVALID_OPERATION:
 552             value=alErrInvalidOp;
 553             break;
 554
 555         case AL_OUT_OF_MEMORY:
 556             value=alErrOutOfMemory;
 557             break;
 558
 559         default:
 560             value=NULL;
 561             alSetError(AL_INVALID_ENUM);
 562             break;
 563     }
 564
 565     ProcessContext(pContext);
 566
 567     return value;
 568 }
 569
 570 ALAPI ALvoid ALAPIENTRY alDopplerFactor(ALfloat value)
 571 {
 572     ALCcontext *Context;
 573
 574     Context=alcGetCurrentContext();
 575     if (Context)
 576     {
 577         SuspendContext(Context);
 578
 579         if (value>=0.0f)
 580             Context->DopplerFactor = value;
 581         else
 582             alSetError(AL_INVALID_VALUE);
 583
 584         ProcessContext(Context);
 585     }
 586     else
 587     {
 588         // Invalid Context
 589         alSetError(AL_INVALID_OPERATION);
 590     }
 591
 592     return;
 593 }
 594
 595 ALAPI ALvoid ALAPIENTRY alDopplerVelocity(ALfloat value)
 596 {
 597     ALCcontext *Context;
 598
 599     Context=alcGetCurrentContext();
 600     if (Context)
 601     {
 602         SuspendContext(Context);
 603
 604         if (value>0.0f)
 605             Context->DopplerVelocity=value;
 606         else
 607             alSetError(AL_INVALID_VALUE);
 608
 609         ProcessContext(Context);
 610     }
 611     else
 612     {
 613         // Invalid Context
 614         alSetError(AL_INVALID_OPERATION);
 615     }
 616
 617     return;
 618 }
 619
 620 ALAPI ALvoid ALAPIENTRY alSpeedOfSound(ALfloat flSpeedOfSound)
 621 {
 622     ALCcontext *pContext;
 623
 624     pContext = alcGetCurrentContext();
 625     if (pContext)
 626     {
 627         SuspendContext(pContext);
 628
 629         if (flSpeedOfSound > 0.0f)
 630             pContext->flSpeedOfSound = flSpeedOfSound;
 631         else
 632             alSetError(AL_INVALID_VALUE);
 633
 634         ProcessContext(pContext);
 635     }
 636     else
 637     {
 638         alSetError(AL_INVALID_OPERATION);
 639     }
 640
 641     return;
 642 }
 643
 644 ALAPI ALvoid ALAPIENTRY alDistanceModel(ALenum value)
 645 {
 646     ALCcontext *Context;
 647
 648     Context=alcGetCurrentContext();
 649     if (Context)
 650     {
 651         SuspendContext(Context);
 652
 653         switch (value)
 654         {
 655             case AL_NONE:
 656             case AL_INVERSE_DISTANCE:
 657             case AL_INVERSE_DISTANCE_CLAMPED:
 658             case AL_LINEAR_DISTANCE:
 659             case AL_LINEAR_DISTANCE_CLAMPED:
 660             case AL_EXPONENT_DISTANCE:
 661             case AL_EXPONENT_DISTANCE_CLAMPED:
 662                 Context->DistanceModel = value;
 663                 break;
 664
 665             default:
 666                 alSetError(AL_INVALID_VALUE);
 667                 break;
 668         }
 669
 670         ProcessContext(Context);
 671     }
 672     else
 673     {
 674         // Invalid Context
 675         alSetError(AL_INVALID_OPERATION);
 676     }
 677
 678     return;
 679 }