OpenAL32/alListener.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 "alMain.h"
  24 #include "AL/alc.h"
  25 #include "alError.h"
  26 #include "alListener.h"
  27 #include "alSource.h"
  28
  29 ALAPI ALvoid ALAPIENTRY alListenerf(ALenum eParam, ALfloat flValue)
  30 {
  31     ALCcontext *pContext;
  32     ALboolean updateAll = AL_FALSE;
  33
  34     pContext = GetContextSuspended();
  35     if(!pContext) return;
  36
  37     switch(eParam)
  38     {
  39         case AL_GAIN:
  40             if(flValue >= 0.0f)
  41             {
  42                 pContext->Listener.Gain = flValue;
  43                 updateAll = AL_TRUE;
  44             }
  45             else
  46                 alSetError(pContext, AL_INVALID_VALUE);
  47             break;
  48
  49         case AL_METERS_PER_UNIT:
  50             if(flValue > 0.0f)
  51             {
  52                 pContext->Listener.MetersPerUnit = flValue;
  53                 updateAll = AL_TRUE;
  54             }
  55             else
  56                 alSetError(pContext, AL_INVALID_VALUE);
  57             break;
  58
  59         default:
  60             alSetError(pContext, AL_INVALID_ENUM);
  61             break;
  62     }
  63
  64     // Force updating the sources for these parameters, since even head-
  65     // relative sources are affected
  66     if(updateAll)
  67     {
  68         ALsource *source = pContext->SourceList;
  69         while(source)
  70         {
  71             source->NeedsUpdate = AL_TRUE;
  72             source = source->next;
  73         }
  74     }
  75
  76     ProcessContext(pContext);
  77 }
  78
  79
  80 ALAPI ALvoid ALAPIENTRY alListener3f(ALenum eParam, ALfloat flValue1, ALfloat flValue2, ALfloat flValue3)
  81 {
  82     ALCcontext *pContext;
  83     ALboolean updateWorld = AL_FALSE;
  84
  85     pContext = GetContextSuspended();
  86     if(!pContext) return;
  87
  88     switch(eParam)
  89     {
  90         case AL_POSITION:
  91             pContext->Listener.Position[0] = flValue1;
  92             pContext->Listener.Position[1] = flValue2;
  93             pContext->Listener.Position[2] = flValue3;
  94             updateWorld = AL_TRUE;
  95             break;
  96
  97         case AL_VELOCITY:
  98             pContext->Listener.Velocity[0] = flValue1;
  99             pContext->Listener.Velocity[1] = flValue2;
 100             pContext->Listener.Velocity[2] = flValue3;
 101             updateWorld = AL_TRUE;
 102             break;
 103
 104         default:
 105             alSetError(pContext, AL_INVALID_ENUM);
 106             break;
 107     }
 108
 109     if(updateWorld)
 110     {
 111         ALsource *source = pContext->SourceList;
 112         while(source)
 113         {
 114             if(!source->bHeadRelative)
 115                 source->NeedsUpdate = AL_TRUE;
 116             source = source->next;
 117         }
 118     }
 119
 120     ProcessContext(pContext);
 121 }
 122
 123
 124 ALAPI ALvoid ALAPIENTRY alListenerfv(ALenum eParam, const ALfloat *pflValues)
 125 {
 126     ALCcontext *pContext;
 127     ALboolean updateWorld = AL_FALSE;
 128
 129     pContext = GetContextSuspended();
 130     if(!pContext) return;
 131
 132     if(pflValues)
 133     {
 134         switch(eParam)
 135         {
 136             case AL_GAIN:
 137             case AL_METERS_PER_UNIT:
 138                 alListenerf(eParam, pflValues[0]);
 139                 break;
 140
 141             case AL_POSITION:
 142             case AL_VELOCITY:
 143                 alListener3f(eParam, pflValues[0], pflValues[1], pflValues[2]);
 144                 break;
 145
 146             case AL_ORIENTATION:
 147                 // AT then UP
 148                 pContext->Listener.Forward[0] = pflValues[0];
 149                 pContext->Listener.Forward[1] = pflValues[1];
 150                 pContext->Listener.Forward[2] = pflValues[2];
 151                 pContext->Listener.Up[0] = pflValues[3];
 152                 pContext->Listener.Up[1] = pflValues[4];
 153                 pContext->Listener.Up[2] = pflValues[5];
 154                 updateWorld = AL_TRUE;
 155                 break;
 156
 157             default:
 158                 alSetError(pContext, AL_INVALID_ENUM);
 159                 break;
 160         }
 161     }
 162     else
 163         alSetError(pContext, AL_INVALID_VALUE);
 164
 165     if(updateWorld)
 166     {
 167         ALsource *source = pContext->SourceList;
 168         while(source)
 169         {
 170             if(!source->bHeadRelative)
 171                 source->NeedsUpdate = AL_TRUE;
 172             source = source->next;
 173         }
 174     }
 175
 176     ProcessContext(pContext);
 177 }
 178
 179
 180 ALAPI ALvoid ALAPIENTRY alListeneri(ALenum eParam, ALint lValue)
 181 {
 182     ALCcontext *pContext;
 183
 184     (void)lValue;
 185
 186     pContext = GetContextSuspended();
 187     if(!pContext) return;
 188
 189     switch(eParam)
 190     {
 191         default:
 192             alSetError(pContext, AL_INVALID_ENUM);
 193             break;
 194     }
 195
 196     ProcessContext(pContext);
 197 }
 198
 199
 200 ALAPI void ALAPIENTRY alListener3i(ALenum eParam, ALint lValue1, ALint lValue2, ALint lValue3)
 201 {
 202     ALCcontext *pContext;
 203
 204     pContext = GetContextSuspended();
 205     if(!pContext) return;
 206
 207     switch(eParam)
 208     {
 209         case AL_POSITION:
 210         case AL_VELOCITY:
 211             alListener3f(eParam, (ALfloat)lValue1, (ALfloat)lValue2, (ALfloat)lValue3);
 212             break;
 213
 214         default:
 215             alSetError(pContext, AL_INVALID_ENUM);
 216             break;
 217     }
 218
 219     ProcessContext(pContext);
 220 }
 221
 222
 223 ALAPI void ALAPIENTRY alListeneriv( ALenum eParam, const ALint* plValues )
 224 {
 225     ALCcontext *pContext;
 226     ALfloat flValues[6];
 227
 228     pContext = GetContextSuspended();
 229     if(!pContext) return;
 230
 231     if(plValues)
 232     {
 233         switch(eParam)
 234         {
 235             case AL_POSITION:
 236             case AL_VELOCITY:
 237                 flValues[0] = (ALfloat)plValues[0];
 238                 flValues[1] = (ALfloat)plValues[1];
 239                 flValues[2] = (ALfloat)plValues[2];
 240                 alListenerfv(eParam, flValues);
 241                 break;
 242
 243             case AL_ORIENTATION:
 244                 flValues[0] = (ALfloat)plValues[0];
 245                 flValues[1] = (ALfloat)plValues[1];
 246                 flValues[2] = (ALfloat)plValues[2];
 247                 flValues[3] = (ALfloat)plValues[3];
 248                 flValues[4] = (ALfloat)plValues[4];
 249                 flValues[5] = (ALfloat)plValues[5];
 250                 alListenerfv(eParam, flValues);
 251                 break;
 252
 253             default:
 254                 alSetError(pContext, AL_INVALID_ENUM);
 255                 break;
 256         }
 257     }
 258     else
 259         alSetError(pContext, AL_INVALID_VALUE);
 260
 261     ProcessContext(pContext);
 262 }
 263
 264
 265 ALAPI ALvoid ALAPIENTRY alGetListenerf(ALenum eParam, ALfloat *pflValue)
 266 {
 267     ALCcontext *pContext;
 268
 269     pContext = GetContextSuspended();
 270     if(!pContext) return;
 271
 272     if(pflValue)
 273     {
 274         switch(eParam)
 275         {
 276             case AL_GAIN:
 277                 *pflValue = pContext->Listener.Gain;
 278                 break;
 279
 280             case AL_METERS_PER_UNIT:
 281                 *pflValue = pContext->Listener.MetersPerUnit;
 282                 break;
 283
 284             default:
 285                 alSetError(pContext, AL_INVALID_ENUM);
 286                 break;
 287         }
 288     }
 289     else
 290         alSetError(pContext, AL_INVALID_VALUE);
 291
 292     ProcessContext(pContext);
 293 }
 294
 295
 296 ALAPI ALvoid ALAPIENTRY alGetListener3f(ALenum eParam, ALfloat *pflValue1, ALfloat *pflValue2, ALfloat *pflValue3)
 297 {
 298     ALCcontext *pContext;
 299
 300     pContext = GetContextSuspended();
 301     if(!pContext) return;
 302
 303     if(pflValue1 && pflValue2 && pflValue3)
 304     {
 305         switch(eParam)
 306         {
 307             case AL_POSITION:
 308                 *pflValue1 = pContext->Listener.Position[0];
 309                 *pflValue2 = pContext->Listener.Position[1];
 310                 *pflValue3 = pContext->Listener.Position[2];
 311                 break;
 312
 313             case AL_VELOCITY:
 314                 *pflValue1 = pContext->Listener.Velocity[0];
 315                 *pflValue2 = pContext->Listener.Velocity[1];
 316                 *pflValue3 = pContext->Listener.Velocity[2];
 317                 break;
 318
 319             default:
 320                 alSetError(pContext, AL_INVALID_ENUM);
 321                 break;
 322         }
 323     }
 324     else
 325         alSetError(pContext, AL_INVALID_VALUE);
 326
 327     ProcessContext(pContext);
 328 }
 329
 330
 331 ALAPI ALvoid ALAPIENTRY alGetListenerfv(ALenum eParam, ALfloat *pflValues)
 332 {
 333     ALCcontext *pContext;
 334
 335     pContext = GetContextSuspended();
 336     if(!pContext) return;
 337
 338     if(pflValues)
 339     {
 340         switch(eParam)
 341         {
 342             case AL_GAIN:
 343                 pflValues[0] = pContext->Listener.Gain;
 344                 break;
 345
 346             case AL_METERS_PER_UNIT:
 347                 pflValues[0] = pContext->Listener.MetersPerUnit;
 348                 break;
 349
 350             case AL_POSITION:
 351                 pflValues[0] = pContext->Listener.Position[0];
 352                 pflValues[1] = pContext->Listener.Position[1];
 353                 pflValues[2] = pContext->Listener.Position[2];
 354                 break;
 355
 356             case AL_VELOCITY:
 357                 pflValues[0] = pContext->Listener.Velocity[0];
 358                 pflValues[1] = pContext->Listener.Velocity[1];
 359                 pflValues[2] = pContext->Listener.Velocity[2];
 360                 break;
 361
 362             case AL_ORIENTATION:
 363                 // AT then UP
 364                 pflValues[0] = pContext->Listener.Forward[0];
 365                 pflValues[1] = pContext->Listener.Forward[1];
 366                 pflValues[2] = pContext->Listener.Forward[2];
 367                 pflValues[3] = pContext->Listener.Up[0];
 368                 pflValues[4] = pContext->Listener.Up[1];
 369                 pflValues[5] = pContext->Listener.Up[2];
 370                 break;
 371
 372             default:
 373                 alSetError(pContext, AL_INVALID_ENUM);
 374                 break;
 375         }
 376     }
 377     else
 378         alSetError(pContext, AL_INVALID_VALUE);
 379
 380     ProcessContext(pContext);
 381 }
 382
 383
 384 ALAPI ALvoid ALAPIENTRY alGetListeneri(ALenum eParam, ALint *plValue)
 385 {
 386     ALCcontext *pContext;
 387
 388     pContext = GetContextSuspended();
 389     if(!pContext) return;
 390
 391     if(plValue)
 392     {
 393         switch(eParam)
 394         {
 395             default:
 396                 alSetError(pContext, AL_INVALID_ENUM);
 397                 break;
 398         }
 399     }
 400     else
 401         alSetError(pContext, AL_INVALID_VALUE);
 402
 403     ProcessContext(pContext);
 404 }
 405
 406
 407 ALAPI void ALAPIENTRY alGetListener3i(ALenum eParam, ALint *plValue1, ALint *plValue2, ALint *plValue3)
 408 {
 409     ALCcontext *pContext;
 410
 411     pContext = GetContextSuspended();
 412     if(!pContext) return;
 413
 414     if(plValue1 && plValue2 && plValue3)
 415     {
 416         switch (eParam)
 417         {
 418             case AL_POSITION:
 419                 *plValue1 = (ALint)pContext->Listener.Position[0];
 420                 *plValue2 = (ALint)pContext->Listener.Position[1];
 421                 *plValue3 = (ALint)pContext->Listener.Position[2];
 422                 break;
 423
 424             case AL_VELOCITY:
 425                 *plValue1 = (ALint)pContext->Listener.Velocity[0];
 426                 *plValue2 = (ALint)pContext->Listener.Velocity[1];
 427                 *plValue3 = (ALint)pContext->Listener.Velocity[2];
 428                 break;
 429
 430             default:
 431                 alSetError(pContext, AL_INVALID_ENUM);
 432                 break;
 433         }
 434     }
 435     else
 436         alSetError(pContext, AL_INVALID_VALUE);
 437
 438     ProcessContext(pContext);
 439 }
 440
 441
 442 ALAPI void ALAPIENTRY alGetListeneriv(ALenum eParam, ALint* plValues)
 443 {
 444     ALCcontext *pContext;
 445
 446     pContext = GetContextSuspended();
 447     if(!pContext) return;
 448
 449     if(plValues)
 450     {
 451         switch(eParam)
 452         {
 453             case AL_POSITION:
 454                 plValues[0] = (ALint)pContext->Listener.Position[0];
 455                 plValues[1] = (ALint)pContext->Listener.Position[1];
 456                 plValues[2] = (ALint)pContext->Listener.Position[2];
 457                 break;
 458
 459             case AL_VELOCITY:
 460                 plValues[0] = (ALint)pContext->Listener.Velocity[0];
 461                 plValues[1] = (ALint)pContext->Listener.Velocity[1];
 462                 plValues[2] = (ALint)pContext->Listener.Velocity[2];
 463                 break;
 464
 465             case AL_ORIENTATION:
 466                 // AT then UP
 467                 plValues[0] = (ALint)pContext->Listener.Forward[0];
 468                 plValues[1] = (ALint)pContext->Listener.Forward[1];
 469                 plValues[2] = (ALint)pContext->Listener.Forward[2];
 470                 plValues[3] = (ALint)pContext->Listener.Up[0];
 471                 plValues[4] = (ALint)pContext->Listener.Up[1];
 472                 plValues[5] = (ALint)pContext->Listener.Up[2];
 473                 break;
 474
 475             default:
 476                 alSetError(pContext, AL_INVALID_ENUM);
 477                 break;
 478         }
 479     }
 480     else
 481         alSetError(pContext, AL_INVALID_VALUE);
 482
 483     ProcessContext(pContext);
 484 }