OpenAL32/alExtension.c

   1 /**
   2  * OpenAL cross platform audio library
   3  * Copyright (C) 1999-2007 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 <stdlib.h>
  22 #include <string.h>
  23 #include <ctype.h>
  24 #include "alExtension.h"
  25 #include "alError.h"
  26 #include "alMain.h"
  27 #include "alFilter.h"
  28 #include "alEffect.h"
  29 #include "alAuxEffectSlot.h"
  30 #include "alSource.h"
  31 #include "AL/al.h"
  32 #include "AL/alc.h"
  33
  34 static ALfunction  function[]=   {
  35     { "alEnable",                   (ALvoid *) alEnable                  },
  36     { "alDisable",                  (ALvoid *) alDisable                 },
  37     { "alIsEnabled",                (ALvoid *) alIsEnabled               },
  38     { "alGetString",                (ALvoid *) alGetString               },
  39     { "alGetBooleanv",              (ALvoid *) alGetBooleanv             },
  40     { "alGetIntegerv",              (ALvoid *) alGetIntegerv             },
  41     { "alGetFloatv",                (ALvoid *) alGetFloatv               },
  42     { "alGetDoublev",               (ALvoid *) alGetDoublev              },
  43     { "alGetBoolean",               (ALvoid *) alGetBoolean              },
  44     { "alGetInteger",               (ALvoid *) alGetInteger              },
  45     { "alGetFloat",                 (ALvoid *) alGetFloat                },
  46     { "alGetDouble",                (ALvoid *) alGetDouble               },
  47     { "alGetError",                 (ALvoid *) alGetError                },
  48     { "alIsExtensionPresent",       (ALvoid *) alIsExtensionPresent      },
  49     { "alGetProcAddress",           (ALvoid *) alGetProcAddress          },
  50     { "alGetEnumValue",             (ALvoid *) alGetEnumValue            },
  51     { "alListenerf",                (ALvoid *) alListenerf               },
  52     { "alListener3f",               (ALvoid *) alListener3f              },
  53     { "alListenerfv",               (ALvoid *) alListenerfv              },
  54     { "alListeneri",                (ALvoid *) alListeneri               },
  55     { "alListener3i",               (ALvoid *) alListener3i              },
  56     { "alListeneriv",               (ALvoid *) alListeneriv              },
  57     { "alGetListenerf",             (ALvoid *) alGetListenerf            },
  58     { "alGetListener3f",            (ALvoid *) alGetListener3f           },
  59     { "alGetListenerfv",            (ALvoid *) alGetListenerfv           },
  60     { "alGetListeneri",             (ALvoid *) alGetListeneri            },
  61     { "alGetListener3i",            (ALvoid *) alGetListener3i           },
  62     { "alGetListeneriv",            (ALvoid *) alGetListeneriv           },
  63     { "alGenSources",               (ALvoid *) alGenSources              },
  64     { "alDeleteSources",            (ALvoid *) alDeleteSources           },
  65     { "alIsSource",                 (ALvoid *) alIsSource                },
  66     { "alSourcef",                  (ALvoid *) alSourcef                 },
  67     { "alSource3f",                 (ALvoid *) alSource3f                },
  68     { "alSourcefv",                 (ALvoid *) alSourcefv                },
  69     { "alSourcei",                  (ALvoid *) alSourcei                 },
  70     { "alSource3i",                 (ALvoid *) alSource3i                },
  71     { "alSourceiv",                 (ALvoid *) alSourceiv                },
  72     { "alGetSourcef",               (ALvoid *) alGetSourcef              },
  73     { "alGetSource3f",              (ALvoid *) alGetSource3f             },
  74     { "alGetSourcefv",              (ALvoid *) alGetSourcefv             },
  75     { "alGetSourcei",               (ALvoid *) alGetSourcei              },
  76     { "alGetSource3i",              (ALvoid *) alGetSource3i             },
  77     { "alGetSourceiv",              (ALvoid *) alGetSourceiv             },
  78     { "alSourcePlayv",              (ALvoid *) alSourcePlayv             },
  79     { "alSourceStopv",              (ALvoid *) alSourceStopv             },
  80     { "alSourceRewindv",            (ALvoid *) alSourceRewindv           },
  81     { "alSourcePausev",             (ALvoid *) alSourcePausev            },
  82     { "alSourcePlay",               (ALvoid *) alSourcePlay              },
  83     { "alSourceStop",               (ALvoid *) alSourceStop              },
  84     { "alSourceRewind",             (ALvoid *) alSourceRewind            },
  85     { "alSourcePause",              (ALvoid *) alSourcePause             },
  86     { "alSourceQueueBuffers",       (ALvoid *) alSourceQueueBuffers      },
  87     { "alSourceUnqueueBuffers",     (ALvoid *) alSourceUnqueueBuffers    },
  88     { "alGenBuffers",               (ALvoid *) alGenBuffers              },
  89     { "alDeleteBuffers",            (ALvoid *) alDeleteBuffers           },
  90     { "alIsBuffer",                 (ALvoid *) alIsBuffer                },
  91     { "alBufferData",               (ALvoid *) alBufferData              },
  92     { "alBufferf",                  (ALvoid *) alBufferf                 },
  93     { "alBuffer3f",                 (ALvoid *) alBuffer3f                },
  94     { "alBufferfv",                 (ALvoid *) alBufferfv                },
  95     { "alBufferi",                  (ALvoid *) alBufferi                 },
  96     { "alBuffer3i",                 (ALvoid *) alBuffer3i                },
  97     { "alBufferiv",                 (ALvoid *) alBufferiv                },
  98     { "alGetBufferf",               (ALvoid *) alGetBufferf              },
  99     { "alGetBuffer3f",              (ALvoid *) alGetBuffer3f             },
 100     { "alGetBufferfv",              (ALvoid *) alGetBufferfv             },
 101     { "alGetBufferi",               (ALvoid *) alGetBufferi              },
 102     { "alGetBuffer3i",              (ALvoid *) alGetBuffer3i             },
 103     { "alGetBufferiv",              (ALvoid *) alGetBufferiv             },
 104     { "alDopplerFactor",            (ALvoid *) alDopplerFactor           },
 105     { "alDopplerVelocity",          (ALvoid *) alDopplerVelocity         },
 106     { "alSpeedOfSound",             (ALvoid *) alSpeedOfSound            },
 107     { "alDistanceModel",            (ALvoid *) alDistanceModel           },
 108
 109     { "alGenFilters",               (ALvoid *) alGenFilters              },
 110     { "alDeleteFilters",            (ALvoid *) alDeleteFilters           },
 111     { "alIsFilter",                 (ALvoid *) alIsFilter                },
 112     { "alFilteri",                  (ALvoid *) alFilteri                 },
 113     { "alFilteriv",                 (ALvoid *) alFilteriv                },
 114     { "alFilterf",                  (ALvoid *) alFilterf                 },
 115     { "alFilterfv",                 (ALvoid *) alFilterfv                },
 116     { "alGetFilteri",               (ALvoid *) alGetFilteri              },
 117     { "alGetFilteriv",              (ALvoid *) alGetFilteriv             },
 118     { "alGetFilterf",               (ALvoid *) alGetFilterf              },
 119     { "alGetFilterfv",              (ALvoid *) alGetFilterfv             },
 120
 121     { "alGenEffects",               (ALvoid *) alGenEffects              },
 122     { "alDeleteEffects",            (ALvoid *) alDeleteEffects           },
 123     { "alIsEffect",                 (ALvoid *) alIsEffect                },
 124     { "alEffecti",                  (ALvoid *) alEffecti                 },
 125     { "alEffectiv",                 (ALvoid *) alEffectiv                },
 126     { "alEffectf",                  (ALvoid *) alEffectf                 },
 127     { "alEffectfv",                 (ALvoid *) alEffectfv                },
 128     { "alGetEffecti",               (ALvoid *) alGetEffecti              },
 129     { "alGetEffectiv",              (ALvoid *) alGetEffectiv             },
 130     { "alGetEffectf",               (ALvoid *) alGetEffectf              },
 131     { "alGetEffectfv",              (ALvoid *) alGetEffectfv             },
 132
 133     { "alGenAuxiliaryEffectSlots",  (ALvoid *) alGenAuxiliaryEffectSlots },
 134     { "alDeleteAuxiliaryEffectSlots",(ALvoid *) alDeleteAuxiliaryEffectSlots},
 135     { "alIsAuxiliaryEffectSlot",    (ALvoid *) alIsAuxiliaryEffectSlot   },
 136     { "alAuxiliaryEffectSloti",     (ALvoid *) alAuxiliaryEffectSloti    },
 137     { "alAuxiliaryEffectSlotiv",    (ALvoid *) alAuxiliaryEffectSlotiv   },
 138     { "alAuxiliaryEffectSlotf",     (ALvoid *) alAuxiliaryEffectSlotf    },
 139     { "alAuxiliaryEffectSlotfv",    (ALvoid *) alAuxiliaryEffectSlotfv   },
 140     { "alGetAuxiliaryEffectSloti",  (ALvoid *) alGetAuxiliaryEffectSloti },
 141     { "alGetAuxiliaryEffectSlotiv", (ALvoid *) alGetAuxiliaryEffectSlotiv},
 142     { "alGetAuxiliaryEffectSlotf",  (ALvoid *) alGetAuxiliaryEffectSlotf },
 143     { "alGetAuxiliaryEffectSlotfv", (ALvoid *) alGetAuxiliaryEffectSlotfv},
 144
 145     { NULL,                         (ALvoid *) NULL                      } };
 146
 147 static ALenums enumeration[]={
 148     // Types
 149     { (ALchar *)"AL_INVALID",                           AL_INVALID                          },
 150     { (ALchar *)"AL_NONE",                              AL_NONE                             },
 151     { (ALchar *)"AL_FALSE",                             AL_FALSE                            },
 152     { (ALchar *)"AL_TRUE",                              AL_TRUE                             },
 153
 154     // Source and Listener Properties
 155     { (ALchar *)"AL_SOURCE_RELATIVE",                   AL_SOURCE_RELATIVE                  },
 156     { (ALchar *)"AL_CONE_INNER_ANGLE",                  AL_CONE_INNER_ANGLE                 },
 157     { (ALchar *)"AL_CONE_OUTER_ANGLE",                  AL_CONE_OUTER_ANGLE                 },
 158     { (ALchar *)"AL_PITCH",                             AL_PITCH                            },
 159     { (ALchar *)"AL_POSITION",                          AL_POSITION                         },
 160     { (ALchar *)"AL_DIRECTION",                         AL_DIRECTION                        },
 161     { (ALchar *)"AL_VELOCITY",                          AL_VELOCITY                         },
 162     { (ALchar *)"AL_LOOPING",                           AL_LOOPING                          },
 163     { (ALchar *)"AL_BUFFER",                            AL_BUFFER                           },
 164     { (ALchar *)"AL_GAIN",                              AL_GAIN                             },
 165     { (ALchar *)"AL_MIN_GAIN",                          AL_MIN_GAIN                         },
 166     { (ALchar *)"AL_MAX_GAIN",                          AL_MAX_GAIN                         },
 167     { (ALchar *)"AL_ORIENTATION",                       AL_ORIENTATION                      },
 168     { (ALchar *)"AL_REFERENCE_DISTANCE",                AL_REFERENCE_DISTANCE               },
 169     { (ALchar *)"AL_ROLLOFF_FACTOR",                    AL_ROLLOFF_FACTOR                   },
 170     { (ALchar *)"AL_CONE_OUTER_GAIN",                   AL_CONE_OUTER_GAIN                  },
 171     { (ALchar *)"AL_MAX_DISTANCE",                      AL_MAX_DISTANCE                     },
 172     { (ALchar *)"AL_SEC_OFFSET",                        AL_SEC_OFFSET                       },
 173     { (ALchar *)"AL_SAMPLE_OFFSET",                     AL_SAMPLE_OFFSET                    },
 174     { (ALchar *)"AL_BYTE_OFFSET",                       AL_BYTE_OFFSET                      },
 175     { (ALchar *)"AL_SOURCE_TYPE",                       AL_SOURCE_TYPE                      },
 176     { (ALchar *)"AL_STATIC",                            AL_STATIC                           },
 177     { (ALchar *)"AL_STREAMING",                         AL_STREAMING                        },
 178     { (ALchar *)"AL_UNDETERMINED",                      AL_UNDETERMINED                     },
 179     { (ALchar *)"AL_METERS_PER_UNIT",                   AL_METERS_PER_UNIT                  },
 180
 181     // Source EFX Properties
 182     { (ALchar *)"AL_DIRECT_FILTER",                     AL_DIRECT_FILTER                    },
 183     { (ALchar *)"AL_AUXILIARY_SEND_FILTER",             AL_AUXILIARY_SEND_FILTER            },
 184     { (ALchar *)"AL_AIR_ABSORPTION_FACTOR",             AL_AIR_ABSORPTION_FACTOR            },
 185     { (ALchar *)"AL_ROOM_ROLLOFF_FACTOR",               AL_ROOM_ROLLOFF_FACTOR              },
 186     { (ALchar *)"AL_CONE_OUTER_GAINHF",                 AL_CONE_OUTER_GAINHF                },
 187     { (ALchar *)"AL_DIRECT_FILTER_GAINHF_AUTO",         AL_DIRECT_FILTER_GAINHF_AUTO        },
 188     { (ALchar *)"AL_AUXILIARY_SEND_FILTER_GAIN_AUTO",   AL_AUXILIARY_SEND_FILTER_GAIN_AUTO  },
 189     { (ALchar *)"AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO", AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO},
 190
 191
 192     // Source State information
 193     { (ALchar *)"AL_SOURCE_STATE",                      AL_SOURCE_STATE                     },
 194     { (ALchar *)"AL_INITIAL",                           AL_INITIAL                          },
 195     { (ALchar *)"AL_PLAYING",                           AL_PLAYING                          },
 196     { (ALchar *)"AL_PAUSED",                            AL_PAUSED                           },
 197     { (ALchar *)"AL_STOPPED",                           AL_STOPPED                          },
 198
 199     // Queue information
 200     { (ALchar *)"AL_BUFFERS_QUEUED",                    AL_BUFFERS_QUEUED                   },
 201     { (ALchar *)"AL_BUFFERS_PROCESSED",                 AL_BUFFERS_PROCESSED                },
 202
 203     // Buffer Formats
 204     { (ALchar *)"AL_FORMAT_MONO8",                      AL_FORMAT_MONO8                     },
 205     { (ALchar *)"AL_FORMAT_MONO16",                     AL_FORMAT_MONO16                    },
 206     { (ALchar *)"AL_FORMAT_MONO_FLOAT32",               AL_FORMAT_MONO_FLOAT32              },
 207     { (ALchar *)"AL_FORMAT_STEREO8",                    AL_FORMAT_STEREO8                   },
 208     { (ALchar *)"AL_FORMAT_STEREO16",                   AL_FORMAT_STEREO16                  },
 209     { (ALchar *)"AL_FORMAT_STEREO_FLOAT32",             AL_FORMAT_STEREO_FLOAT32            },
 210     { (ALchar *)"AL_FORMAT_MONO_IMA4",                  AL_FORMAT_MONO_IMA4                 },
 211     { (ALchar *)"AL_FORMAT_STEREO_IMA4",                AL_FORMAT_STEREO_IMA4               },
 212     { (ALchar *)"AL_FORMAT_QUAD8_LOKI",                 AL_FORMAT_QUAD8_LOKI                },
 213     { (ALchar *)"AL_FORMAT_QUAD16_LOKI",                AL_FORMAT_QUAD16_LOKI               },
 214     { (ALchar *)"AL_FORMAT_QUAD8",                      AL_FORMAT_QUAD8                     },
 215     { (ALchar *)"AL_FORMAT_QUAD16",                     AL_FORMAT_QUAD16                    },
 216     { (ALchar *)"AL_FORMAT_QUAD32",                     AL_FORMAT_QUAD32                    },
 217     { (ALchar *)"AL_FORMAT_51CHN8",                     AL_FORMAT_51CHN8                    },
 218     { (ALchar *)"AL_FORMAT_51CHN16",                    AL_FORMAT_51CHN16                   },
 219     { (ALchar *)"AL_FORMAT_51CHN32",                    AL_FORMAT_51CHN32                   },
 220     { (ALchar *)"AL_FORMAT_61CHN8",                     AL_FORMAT_61CHN8                    },
 221     { (ALchar *)"AL_FORMAT_61CHN16",                    AL_FORMAT_61CHN16                   },
 222     { (ALchar *)"AL_FORMAT_61CHN32",                    AL_FORMAT_61CHN32                   },
 223     { (ALchar *)"AL_FORMAT_71CHN8",                     AL_FORMAT_71CHN8                    },
 224     { (ALchar *)"AL_FORMAT_71CHN16",                    AL_FORMAT_71CHN16                   },
 225     { (ALchar *)"AL_FORMAT_71CHN32",                    AL_FORMAT_71CHN32                   },
 226     { (ALchar *)"AL_FORMAT_REAR8",                      AL_FORMAT_REAR8                     },
 227     { (ALchar *)"AL_FORMAT_REAR16",                     AL_FORMAT_REAR16                    },
 228     { (ALchar *)"AL_FORMAT_REAR32",                     AL_FORMAT_REAR32                    },
 229
 230     // Buffer attributes
 231     { (ALchar *)"AL_FREQUENCY",                         AL_FREQUENCY                        },
 232     { (ALchar *)"AL_BITS",                              AL_BITS                             },
 233     { (ALchar *)"AL_CHANNELS",                          AL_CHANNELS                         },
 234     { (ALchar *)"AL_SIZE",                              AL_SIZE                             },
 235
 236     // Buffer States (not supported yet)
 237     { (ALchar *)"AL_UNUSED",                            AL_UNUSED                           },
 238     { (ALchar *)"AL_PENDING",                           AL_PENDING                          },
 239     { (ALchar *)"AL_PROCESSED",                         AL_PROCESSED                        },
 240
 241     // AL Error Messages
 242     { (ALchar *)"AL_NO_ERROR",                          AL_NO_ERROR                         },
 243     { (ALchar *)"AL_INVALID_NAME",                      AL_INVALID_NAME                     },
 244     { (ALchar *)"AL_INVALID_ENUM",                      AL_INVALID_ENUM                     },
 245     { (ALchar *)"AL_INVALID_VALUE",                     AL_INVALID_VALUE                    },
 246     { (ALchar *)"AL_INVALID_OPERATION",                 AL_INVALID_OPERATION                },
 247     { (ALchar *)"AL_OUT_OF_MEMORY",                     AL_OUT_OF_MEMORY                    },
 248
 249     // Context strings
 250     { (ALchar *)"AL_VENDOR",                            AL_VENDOR                           },
 251     { (ALchar *)"AL_VERSION",                           AL_VERSION                          },
 252     { (ALchar *)"AL_RENDERER",                          AL_RENDERER                         },
 253     { (ALchar *)"AL_EXTENSIONS",                        AL_EXTENSIONS                       },
 254
 255     // Global states
 256     { (ALchar *)"AL_DOPPLER_FACTOR",                    AL_DOPPLER_FACTOR                   },
 257     { (ALchar *)"AL_DOPPLER_VELOCITY",                  AL_DOPPLER_VELOCITY                 },
 258     { (ALchar *)"AL_DISTANCE_MODEL",                    AL_DISTANCE_MODEL                   },
 259     { (ALchar *)"AL_SPEED_OF_SOUND",                    AL_SPEED_OF_SOUND                   },
 260
 261     // Distance Models
 262     { (ALchar *)"AL_INVERSE_DISTANCE",                  AL_INVERSE_DISTANCE                 },
 263     { (ALchar *)"AL_INVERSE_DISTANCE_CLAMPED",          AL_INVERSE_DISTANCE_CLAMPED         },
 264     { (ALchar *)"AL_LINEAR_DISTANCE",                   AL_LINEAR_DISTANCE                  },
 265     { (ALchar *)"AL_LINEAR_DISTANCE_CLAMPED",           AL_LINEAR_DISTANCE_CLAMPED          },
 266     { (ALchar *)"AL_EXPONENT_DISTANCE",                 AL_EXPONENT_DISTANCE                },
 267     { (ALchar *)"AL_EXPONENT_DISTANCE_CLAMPED",         AL_EXPONENT_DISTANCE_CLAMPED        },
 268
 269     // Filter types
 270     { (ALchar *)"AL_FILTER_TYPE",                       AL_FILTER_TYPE                      },
 271     { (ALchar *)"AL_FILTER_NULL",                       AL_FILTER_NULL                      },
 272     { (ALchar *)"AL_FILTER_LOWPASS",                    AL_FILTER_LOWPASS                   },
 273     { (ALchar *)"AL_FILTER_HIGHPASS",                   AL_FILTER_HIGHPASS                  },
 274     { (ALchar *)"AL_FILTER_BANDPASS",                   AL_FILTER_BANDPASS                  },
 275
 276     // Filter params
 277     { (ALchar *)"AL_LOWPASS_GAIN",                      AL_LOWPASS_GAIN                     },
 278     { (ALchar *)"AL_LOWPASS_GAINHF",                    AL_LOWPASS_GAINHF                   },
 279
 280     // Effect types
 281     { (ALchar *)"AL_EFFECT_TYPE",                       AL_EFFECT_TYPE                      },
 282     { (ALchar *)"AL_EFFECT_NULL",                       AL_EFFECT_NULL                      },
 283     { (ALchar *)"AL_EFFECT_REVERB",                     AL_EFFECT_REVERB                    },
 284     { (ALchar *)"AL_EFFECT_CHORUS",                     AL_EFFECT_CHORUS                    },
 285     { (ALchar *)"AL_EFFECT_DISTORTION",                 AL_EFFECT_DISTORTION                },
 286     { (ALchar *)"AL_EFFECT_ECHO",                       AL_EFFECT_ECHO                      },
 287     { (ALchar *)"AL_EFFECT_FLANGER",                    AL_EFFECT_FLANGER                   },
 288     { (ALchar *)"AL_EFFECT_FREQUENCY_SHIFTER",          AL_EFFECT_FREQUENCY_SHIFTER         },
 289     { (ALchar *)"AL_EFFECT_VOCAL_MORPHER",              AL_EFFECT_VOCAL_MORPHER             },
 290     { (ALchar *)"AL_EFFECT_PITCH_SHIFTER",              AL_EFFECT_PITCH_SHIFTER             },
 291     { (ALchar *)"AL_EFFECT_RING_MODULATOR",             AL_EFFECT_RING_MODULATOR            },
 292     { (ALchar *)"AL_EFFECT_AUTOWAH",                    AL_EFFECT_AUTOWAH                   },
 293     { (ALchar *)"AL_EFFECT_COMPRESSOR",                 AL_EFFECT_COMPRESSOR                },
 294     { (ALchar *)"AL_EFFECT_EQUALIZER",                  AL_EFFECT_EQUALIZER                 },
 295
 296     // Reverb params
 297     { (ALchar *)"AL_REVERB_DENSITY",                    AL_REVERB_DENSITY                   },
 298     { (ALchar *)"AL_REVERB_DIFFUSION",                  AL_REVERB_DIFFUSION                 },
 299     { (ALchar *)"AL_REVERB_GAIN",                       AL_REVERB_GAIN                      },
 300     { (ALchar *)"AL_REVERB_GAINHF",                     AL_REVERB_GAINHF                    },
 301     { (ALchar *)"AL_REVERB_DECAY_TIME",                 AL_REVERB_DECAY_TIME                },
 302     { (ALchar *)"AL_REVERB_DECAY_HFRATIO",              AL_REVERB_DECAY_HFRATIO             },
 303     { (ALchar *)"AL_REVERB_REFLECTIONS_GAIN",           AL_REVERB_REFLECTIONS_GAIN          },
 304     { (ALchar *)"AL_REVERB_REFLECTIONS_DELAY",          AL_REVERB_REFLECTIONS_DELAY         },
 305     { (ALchar *)"AL_REVERB_LATE_REVERB_GAIN",           AL_REVERB_LATE_REVERB_GAIN          },
 306     { (ALchar *)"AL_REVERB_LATE_REVERB_DELAY",          AL_REVERB_LATE_REVERB_DELAY         },
 307     { (ALchar *)"AL_REVERB_AIR_ABSORPTION_GAINHF",      AL_REVERB_AIR_ABSORPTION_GAINHF     },
 308     { (ALchar *)"AL_REVERB_ROOM_ROLLOFF_FACTOR",        AL_REVERB_ROOM_ROLLOFF_FACTOR       },
 309     { (ALchar *)"AL_REVERB_DECAY_HFLIMIT",              AL_REVERB_DECAY_HFLIMIT             },
 310
 311
 312     // Default
 313     { (ALchar *)NULL,                                   (ALenum)0                           }
 314 };
 315
 316
 317
 318 ALAPI ALboolean ALAPIENTRY alIsExtensionPresent(const ALchar *extName)
 319 {
 320     ALboolean bIsSupported = AL_FALSE;
 321     ALCcontext *pContext;
 322     const char *ptr;
 323     size_t len;
 324
 325     if (!extName)
 326     {
 327         alSetError(AL_INVALID_VALUE);
 328         return AL_FALSE;
 329     }
 330
 331     pContext = alcGetCurrentContext();
 332     if(!pContext)
 333     {
 334         alSetError(AL_INVALID_OPERATION);
 335         return AL_FALSE;
 336     }
 337
 338     SuspendContext(pContext);
 339
 340     len = strlen(extName);
 341     ptr = pContext->ExtensionList;
 342     while(ptr && *ptr)
 343     {
 344         if(strncasecmp(ptr, extName, len) == 0 &&
 345            (ptr[len] == '\0' || isspace(ptr[len])))
 346         {
 347             bIsSupported = AL_TRUE;
 348             break;
 349         }
 350         if((ptr=strchr(ptr, ' ')) != NULL)
 351         {
 352             do {
 353                 ++ptr;
 354             } while(isspace(*ptr));
 355         }
 356     }
 357
 358     ProcessContext(pContext);
 359
 360     return bIsSupported;
 361 }
 362
 363
 364 ALAPI ALvoid * ALAPIENTRY alGetProcAddress(const ALchar *funcName)
 365 {
 366     ALsizei i = 0;
 367
 368     while(function[i].funcName &&
 369           strcmp((char*)function[i].funcName, (char*)funcName) != 0)
 370         i++;
 371
 372     return function[i].address;
 373 }
 374
 375 /* NOTE: This function must be able to run without a context! */
 376 ALAPI ALenum ALAPIENTRY alGetEnumValue(const ALchar *enumName)
 377 {
 378     ALsizei i = 0;
 379
 380     while(enumeration[i].enumName &&
 381           strcmp(enumeration[i].enumName, enumName) != 0)
 382         i++;
 383
 384     return enumeration[i].value;
 385 }