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 "config.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <ctype.h>
  26
  27 #include "alError.h"
  28 #include "alMain.h"
  29 #include "alFilter.h"
  30 #include "alEffect.h"
  31 #include "alAuxEffectSlot.h"
  32 #include "alDatabuffer.h"
  33 #include "alSource.h"
  34 #include "alBuffer.h"
  35 #include "AL/al.h"
  36 #include "AL/alc.h"
  37
  38 typedef struct ALenums {
  39     const ALchar *enumName;
  40     ALenum value;
  41 } ALenums;
  42
  43
  44 static const ALenums enumeration[] = {
  45     // Types
  46     { "AL_INVALID",                           AL_INVALID                          },
  47     { "AL_NONE",                              AL_NONE                             },
  48     { "AL_FALSE",                             AL_FALSE                            },
  49     { "AL_TRUE",                              AL_TRUE                             },
  50
  51     // Source and Listener Properties
  52     { "AL_SOURCE_RELATIVE",                   AL_SOURCE_RELATIVE                  },
  53     { "AL_CONE_INNER_ANGLE",                  AL_CONE_INNER_ANGLE                 },
  54     { "AL_CONE_OUTER_ANGLE",                  AL_CONE_OUTER_ANGLE                 },
  55     { "AL_PITCH",                             AL_PITCH                            },
  56     { "AL_POSITION",                          AL_POSITION                         },
  57     { "AL_DIRECTION",                         AL_DIRECTION                        },
  58     { "AL_VELOCITY",                          AL_VELOCITY                         },
  59     { "AL_LOOPING",                           AL_LOOPING                          },
  60     { "AL_BUFFER",                            AL_BUFFER                           },
  61     { "AL_GAIN",                              AL_GAIN                             },
  62     { "AL_MIN_GAIN",                          AL_MIN_GAIN                         },
  63     { "AL_MAX_GAIN",                          AL_MAX_GAIN                         },
  64     { "AL_ORIENTATION",                       AL_ORIENTATION                      },
  65     { "AL_REFERENCE_DISTANCE",                AL_REFERENCE_DISTANCE               },
  66     { "AL_ROLLOFF_FACTOR",                    AL_ROLLOFF_FACTOR                   },
  67     { "AL_CONE_OUTER_GAIN",                   AL_CONE_OUTER_GAIN                  },
  68     { "AL_MAX_DISTANCE",                      AL_MAX_DISTANCE                     },
  69     { "AL_SEC_OFFSET",                        AL_SEC_OFFSET                       },
  70     { "AL_SAMPLE_OFFSET",                     AL_SAMPLE_OFFSET                    },
  71     { "AL_BYTE_OFFSET",                       AL_BYTE_OFFSET                      },
  72     { "AL_SOURCE_TYPE",                       AL_SOURCE_TYPE                      },
  73     { "AL_STATIC",                            AL_STATIC                           },
  74     { "AL_STREAMING",                         AL_STREAMING                        },
  75     { "AL_UNDETERMINED",                      AL_UNDETERMINED                     },
  76     { "AL_METERS_PER_UNIT",                   AL_METERS_PER_UNIT                  },
  77
  78     // Source EFX Properties
  79     { "AL_DIRECT_FILTER",                     AL_DIRECT_FILTER                    },
  80     { "AL_AUXILIARY_SEND_FILTER",             AL_AUXILIARY_SEND_FILTER            },
  81     { "AL_AIR_ABSORPTION_FACTOR",             AL_AIR_ABSORPTION_FACTOR            },
  82     { "AL_ROOM_ROLLOFF_FACTOR",               AL_ROOM_ROLLOFF_FACTOR              },
  83     { "AL_CONE_OUTER_GAINHF",                 AL_CONE_OUTER_GAINHF                },
  84     { "AL_DIRECT_FILTER_GAINHF_AUTO",         AL_DIRECT_FILTER_GAINHF_AUTO        },
  85     { "AL_AUXILIARY_SEND_FILTER_GAIN_AUTO",   AL_AUXILIARY_SEND_FILTER_GAIN_AUTO  },
  86     { "AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO", AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO},
  87
  88     // Source State information
  89     { "AL_SOURCE_STATE",                      AL_SOURCE_STATE                     },
  90     { "AL_INITIAL",                           AL_INITIAL                          },
  91     { "AL_PLAYING",                           AL_PLAYING                          },
  92     { "AL_PAUSED",                            AL_PAUSED                           },
  93     { "AL_STOPPED",                           AL_STOPPED                          },
  94
  95     // Queue information
  96     { "AL_BUFFERS_QUEUED",                    AL_BUFFERS_QUEUED                   },
  97     { "AL_BUFFERS_PROCESSED",                 AL_BUFFERS_PROCESSED                },
  98
  99     // Buffer Formats
 100     { "AL_FORMAT_MONO8",                      AL_FORMAT_MONO8                     },
 101     { "AL_FORMAT_MONO16",                     AL_FORMAT_MONO16                    },
 102     { "AL_FORMAT_MONO_FLOAT32",               AL_FORMAT_MONO_FLOAT32              },
 103     { "AL_FORMAT_MONO_DOUBLE_EXT",            AL_FORMAT_MONO_DOUBLE_EXT           },
 104     { "AL_FORMAT_STEREO8",                    AL_FORMAT_STEREO8                   },
 105     { "AL_FORMAT_STEREO16",                   AL_FORMAT_STEREO16                  },
 106     { "AL_FORMAT_STEREO_FLOAT32",             AL_FORMAT_STEREO_FLOAT32            },
 107     { "AL_FORMAT_STEREO_DOUBLE_EXT",          AL_FORMAT_STEREO_DOUBLE_EXT         },
 108     { "AL_FORMAT_MONO_IMA4",                  AL_FORMAT_MONO_IMA4                 },
 109     { "AL_FORMAT_STEREO_IMA4",                AL_FORMAT_STEREO_IMA4               },
 110     { "AL_FORMAT_QUAD8_LOKI",                 AL_FORMAT_QUAD8_LOKI                },
 111     { "AL_FORMAT_QUAD16_LOKI",                AL_FORMAT_QUAD16_LOKI               },
 112     { "AL_FORMAT_QUAD8",                      AL_FORMAT_QUAD8                     },
 113     { "AL_FORMAT_QUAD16",                     AL_FORMAT_QUAD16                    },
 114     { "AL_FORMAT_QUAD32",                     AL_FORMAT_QUAD32                    },
 115     { "AL_FORMAT_51CHN8",                     AL_FORMAT_51CHN8                    },
 116     { "AL_FORMAT_51CHN16",                    AL_FORMAT_51CHN16                   },
 117     { "AL_FORMAT_51CHN32",                    AL_FORMAT_51CHN32                   },
 118     { "AL_FORMAT_61CHN8",                     AL_FORMAT_61CHN8                    },
 119     { "AL_FORMAT_61CHN16",                    AL_FORMAT_61CHN16                   },
 120     { "AL_FORMAT_61CHN32",                    AL_FORMAT_61CHN32                   },
 121     { "AL_FORMAT_71CHN8",                     AL_FORMAT_71CHN8                    },
 122     { "AL_FORMAT_71CHN16",                    AL_FORMAT_71CHN16                   },
 123     { "AL_FORMAT_71CHN32",                    AL_FORMAT_71CHN32                   },
 124     { "AL_FORMAT_REAR8",                      AL_FORMAT_REAR8                     },
 125     { "AL_FORMAT_REAR16",                     AL_FORMAT_REAR16                    },
 126     { "AL_FORMAT_REAR32",                     AL_FORMAT_REAR32                    },
 127     { "AL_FORMAT_MONO_MULAW",                 AL_FORMAT_MONO_MULAW                },
 128     { "AL_FORMAT_MONO_MULAW_EXT",             AL_FORMAT_MONO_MULAW                },
 129     { "AL_FORMAT_STEREO_MULAW",               AL_FORMAT_STEREO_MULAW              },
 130     { "AL_FORMAT_STEREO_MULAW_EXT",           AL_FORMAT_STEREO_MULAW              },
 131     { "AL_FORMAT_QUAD_MULAW",                 AL_FORMAT_QUAD_MULAW                },
 132     { "AL_FORMAT_51CHN_MULAW",                AL_FORMAT_51CHN_MULAW               },
 133     { "AL_FORMAT_61CHN_MULAW",                AL_FORMAT_61CHN_MULAW               },
 134     { "AL_FORMAT_71CHN_MULAW",                AL_FORMAT_71CHN_MULAW               },
 135     { "AL_FORMAT_REAR_MULAW",                 AL_FORMAT_REAR_MULAW                },
 136
 137     // Buffer attributes
 138     { "AL_FREQUENCY",                         AL_FREQUENCY                        },
 139     { "AL_BITS",                              AL_BITS                             },
 140     { "AL_CHANNELS",                          AL_CHANNELS                         },
 141     { "AL_SIZE",                              AL_SIZE                             },
 142
 143     // Buffer States (not supported yet)
 144     { "AL_UNUSED",                            AL_UNUSED                           },
 145     { "AL_PENDING",                           AL_PENDING                          },
 146     { "AL_PROCESSED",                         AL_PROCESSED                        },
 147
 148     // AL Error Messages
 149     { "AL_NO_ERROR",                          AL_NO_ERROR                         },
 150     { "AL_INVALID_NAME",                      AL_INVALID_NAME                     },
 151     { "AL_INVALID_ENUM",                      AL_INVALID_ENUM                     },
 152     { "AL_INVALID_VALUE",                     AL_INVALID_VALUE                    },
 153     { "AL_INVALID_OPERATION",                 AL_INVALID_OPERATION                },
 154     { "AL_OUT_OF_MEMORY",                     AL_OUT_OF_MEMORY                    },
 155
 156     // Context strings
 157     { "AL_VENDOR",                            AL_VENDOR                           },
 158     { "AL_VERSION",                           AL_VERSION                          },
 159     { "AL_RENDERER",                          AL_RENDERER                         },
 160     { "AL_EXTENSIONS",                        AL_EXTENSIONS                       },
 161
 162     // Global states
 163     { "AL_DOPPLER_FACTOR",                    AL_DOPPLER_FACTOR                   },
 164     { "AL_DOPPLER_VELOCITY",                  AL_DOPPLER_VELOCITY                 },
 165     { "AL_DISTANCE_MODEL",                    AL_DISTANCE_MODEL                   },
 166     { "AL_SPEED_OF_SOUND",                    AL_SPEED_OF_SOUND                   },
 167     { "AL_SOURCE_DISTANCE_MODEL",             AL_SOURCE_DISTANCE_MODEL            },
 168
 169     // Distance Models
 170     { "AL_INVERSE_DISTANCE",                  AL_INVERSE_DISTANCE                 },
 171     { "AL_INVERSE_DISTANCE_CLAMPED",          AL_INVERSE_DISTANCE_CLAMPED         },
 172     { "AL_LINEAR_DISTANCE",                   AL_LINEAR_DISTANCE                  },
 173     { "AL_LINEAR_DISTANCE_CLAMPED",           AL_LINEAR_DISTANCE_CLAMPED          },
 174     { "AL_EXPONENT_DISTANCE",                 AL_EXPONENT_DISTANCE                },
 175     { "AL_EXPONENT_DISTANCE_CLAMPED",         AL_EXPONENT_DISTANCE_CLAMPED        },
 176
 177     // Filter types
 178     { "AL_FILTER_TYPE",                       AL_FILTER_TYPE                      },
 179     { "AL_FILTER_NULL",                       AL_FILTER_NULL                      },
 180     { "AL_FILTER_LOWPASS",                    AL_FILTER_LOWPASS                   },
 181 #if 0
 182     { "AL_FILTER_HIGHPASS",                   AL_FILTER_HIGHPASS                  },
 183     { "AL_FILTER_BANDPASS",                   AL_FILTER_BANDPASS                  },
 184 #endif
 185
 186     // Filter params
 187     { "AL_LOWPASS_GAIN",                      AL_LOWPASS_GAIN                     },
 188     { "AL_LOWPASS_GAINHF",                    AL_LOWPASS_GAINHF                   },
 189
 190     // Effect types
 191     { "AL_EFFECT_TYPE",                       AL_EFFECT_TYPE                      },
 192     { "AL_EFFECT_NULL",                       AL_EFFECT_NULL                      },
 193     { "AL_EFFECT_REVERB",                     AL_EFFECT_REVERB                    },
 194     { "AL_EFFECT_EAXREVERB",                  AL_EFFECT_EAXREVERB                 },
 195 #if 0
 196     { "AL_EFFECT_CHORUS",                     AL_EFFECT_CHORUS                    },
 197     { "AL_EFFECT_DISTORTION",                 AL_EFFECT_DISTORTION                },
 198 #endif
 199     { "AL_EFFECT_ECHO",                       AL_EFFECT_ECHO                      },
 200 #if 0
 201     { "AL_EFFECT_FLANGER",                    AL_EFFECT_FLANGER                   },
 202     { "AL_EFFECT_FREQUENCY_SHIFTER",          AL_EFFECT_FREQUENCY_SHIFTER         },
 203     { "AL_EFFECT_VOCAL_MORPHER",              AL_EFFECT_VOCAL_MORPHER             },
 204     { "AL_EFFECT_PITCH_SHIFTER",              AL_EFFECT_PITCH_SHIFTER             },
 205 #endif
 206     { "AL_EFFECT_RING_MODULATOR",             AL_EFFECT_RING_MODULATOR            },
 207 #if 0
 208     { "AL_EFFECT_AUTOWAH",                    AL_EFFECT_AUTOWAH                   },
 209     { "AL_EFFECT_COMPRESSOR",                 AL_EFFECT_COMPRESSOR                },
 210     { "AL_EFFECT_EQUALIZER",                  AL_EFFECT_EQUALIZER                 },
 211 #endif
 212
 213     // Reverb params
 214     { "AL_REVERB_DENSITY",                    AL_REVERB_DENSITY                   },
 215     { "AL_REVERB_DIFFUSION",                  AL_REVERB_DIFFUSION                 },
 216     { "AL_REVERB_GAIN",                       AL_REVERB_GAIN                      },
 217     { "AL_REVERB_GAINHF",                     AL_REVERB_GAINHF                    },
 218     { "AL_REVERB_DECAY_TIME",                 AL_REVERB_DECAY_TIME                },
 219     { "AL_REVERB_DECAY_HFRATIO",              AL_REVERB_DECAY_HFRATIO             },
 220     { "AL_REVERB_REFLECTIONS_GAIN",           AL_REVERB_REFLECTIONS_GAIN          },
 221     { "AL_REVERB_REFLECTIONS_DELAY",          AL_REVERB_REFLECTIONS_DELAY         },
 222     { "AL_REVERB_LATE_REVERB_GAIN",           AL_REVERB_LATE_REVERB_GAIN          },
 223     { "AL_REVERB_LATE_REVERB_DELAY",          AL_REVERB_LATE_REVERB_DELAY         },
 224     { "AL_REVERB_AIR_ABSORPTION_GAINHF",      AL_REVERB_AIR_ABSORPTION_GAINHF     },
 225     { "AL_REVERB_ROOM_ROLLOFF_FACTOR",        AL_REVERB_ROOM_ROLLOFF_FACTOR       },
 226     { "AL_REVERB_DECAY_HFLIMIT",              AL_REVERB_DECAY_HFLIMIT             },
 227
 228     // EAX Reverb params
 229     { "AL_EAXREVERB_DENSITY",                 AL_EAXREVERB_DENSITY                },
 230     { "AL_EAXREVERB_DIFFUSION",               AL_EAXREVERB_DIFFUSION              },
 231     { "AL_EAXREVERB_GAIN",                    AL_EAXREVERB_GAIN                   },
 232     { "AL_EAXREVERB_GAINHF",                  AL_EAXREVERB_GAINHF                 },
 233     { "AL_EAXREVERB_GAINLF",                  AL_EAXREVERB_GAINLF                 },
 234     { "AL_EAXREVERB_DECAY_TIME",              AL_EAXREVERB_DECAY_TIME             },
 235     { "AL_EAXREVERB_DECAY_HFRATIO",           AL_EAXREVERB_DECAY_HFRATIO          },
 236     { "AL_EAXREVERB_DECAY_LFRATIO",           AL_EAXREVERB_DECAY_LFRATIO          },
 237     { "AL_EAXREVERB_REFLECTIONS_GAIN",        AL_EAXREVERB_REFLECTIONS_GAIN       },
 238     { "AL_EAXREVERB_REFLECTIONS_DELAY",       AL_EAXREVERB_REFLECTIONS_DELAY      },
 239     { "AL_EAXREVERB_REFLECTIONS_PAN",         AL_EAXREVERB_REFLECTIONS_PAN        },
 240     { "AL_EAXREVERB_LATE_REVERB_GAIN",        AL_EAXREVERB_LATE_REVERB_GAIN       },
 241     { "AL_EAXREVERB_LATE_REVERB_DELAY",       AL_EAXREVERB_LATE_REVERB_DELAY      },
 242     { "AL_EAXREVERB_LATE_REVERB_PAN",         AL_EAXREVERB_LATE_REVERB_PAN        },
 243     { "AL_EAXREVERB_ECHO_TIME",               AL_EAXREVERB_ECHO_TIME              },
 244     { "AL_EAXREVERB_ECHO_DEPTH",              AL_EAXREVERB_ECHO_DEPTH             },
 245     { "AL_EAXREVERB_MODULATION_TIME",         AL_EAXREVERB_MODULATION_TIME        },
 246     { "AL_EAXREVERB_MODULATION_DEPTH",        AL_EAXREVERB_MODULATION_DEPTH       },
 247     { "AL_EAXREVERB_AIR_ABSORPTION_GAINHF",   AL_EAXREVERB_AIR_ABSORPTION_GAINHF  },
 248     { "AL_EAXREVERB_HFREFERENCE",             AL_EAXREVERB_HFREFERENCE            },
 249     { "AL_EAXREVERB_LFREFERENCE",             AL_EAXREVERB_LFREFERENCE            },
 250     { "AL_EAXREVERB_ROOM_ROLLOFF_FACTOR",     AL_EAXREVERB_ROOM_ROLLOFF_FACTOR    },
 251     { "AL_EAXREVERB_DECAY_HFLIMIT",           AL_EAXREVERB_DECAY_HFLIMIT          },
 252
 253     // Echo params
 254     { "AL_ECHO_DELAY",                        AL_ECHO_DELAY                       },
 255     { "AL_ECHO_LRDELAY",                      AL_ECHO_LRDELAY                     },
 256     { "AL_ECHO_DAMPING",                      AL_ECHO_DAMPING                     },
 257     { "AL_ECHO_FEEDBACK",                     AL_ECHO_FEEDBACK                    },
 258     { "AL_ECHO_SPREAD",                       AL_ECHO_SPREAD                      },
 259
 260     // Ring Modulator params
 261     { "AL_RING_MODULATOR_FREQUENCY",          AL_RING_MODULATOR_FREQUENCY         },
 262     { "AL_RING_MODULATOR_HIGHPASS_CUTOFF",    AL_RING_MODULATOR_HIGHPASS_CUTOFF   },
 263     { "AL_RING_MODULATOR_WAVEFORM",           AL_RING_MODULATOR_WAVEFORM          },
 264
 265
 266     // Default
 267     { NULL,                                   (ALenum)0                           }
 268 };
 269
 270
 271
 272 AL_API ALboolean AL_APIENTRY alIsExtensionPresent(const ALchar *extName)
 273 {
 274     ALboolean bIsSupported = AL_FALSE;
 275     ALCcontext *pContext;
 276     const char *ptr;
 277     size_t len;
 278
 279     pContext = GetContextSuspended();
 280     if(!pContext) return AL_FALSE;
 281
 282     if(!extName)
 283     {
 284         alSetError(pContext, AL_INVALID_VALUE);
 285         ProcessContext(pContext);
 286         return AL_FALSE;
 287     }
 288
 289     len = strlen(extName);
 290     ptr = pContext->ExtensionList;
 291     while(ptr && *ptr)
 292     {
 293         if(strncasecmp(ptr, extName, len) == 0 &&
 294            (ptr[len] == '\0' || isspace(ptr[len])))
 295         {
 296             bIsSupported = AL_TRUE;
 297             break;
 298         }
 299         if((ptr=strchr(ptr, ' ')) != NULL)
 300         {
 301             do {
 302                 ++ptr;
 303             } while(isspace(*ptr));
 304         }
 305     }
 306
 307     ProcessContext(pContext);
 308
 309     return bIsSupported;
 310 }
 311
 312
 313 AL_API ALvoid* AL_APIENTRY alGetProcAddress(const ALchar *funcName)
 314 {
 315     if(!funcName)
 316         return NULL;
 317     return alcGetProcAddress(NULL, funcName);
 318 }
 319
 320 AL_API ALenum AL_APIENTRY alGetEnumValue(const ALchar *enumName)
 321 {
 322     ALsizei i = 0;
 323
 324     while(enumeration[i].enumName &&
 325           strcmp(enumeration[i].enumName, enumName) != 0)
 326         i++;
 327
 328     return enumeration[i].value;
 329 }