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 "AL/al.h"
  29 #include "AL/alc.h"
  30
  31 static ALfunction  function[]=   {
  32     { "alEnable",                   (ALvoid *) alEnable                  },
  33     { "alDisable",                  (ALvoid *) alDisable                 },
  34     { "alIsEnabled",                (ALvoid *) alIsEnabled               },
  35     { "alGetString",                (ALvoid *) alGetString               },
  36     { "alGetBooleanv",              (ALvoid *) alGetBooleanv             },
  37     { "alGetIntegerv",              (ALvoid *) alGetIntegerv             },
  38     { "alGetFloatv",                (ALvoid *) alGetFloatv               },
  39     { "alGetDoublev",               (ALvoid *) alGetDoublev              },
  40     { "alGetBoolean",               (ALvoid *) alGetBoolean              },
  41     { "alGetInteger",               (ALvoid *) alGetInteger              },
  42     { "alGetFloat",                 (ALvoid *) alGetFloat                },
  43     { "alGetDouble",                (ALvoid *) alGetDouble               },
  44     { "alGetError",                 (ALvoid *) alGetError                },
  45     { "alIsExtensionPresent",       (ALvoid *) alIsExtensionPresent      },
  46     { "alGetProcAddress",           (ALvoid *) alGetProcAddress          },
  47     { "alGetEnumValue",             (ALvoid *) alGetEnumValue            },
  48     { "alListenerf",                (ALvoid *) alListenerf               },
  49     { "alListener3f",               (ALvoid *) alListener3f              },
  50     { "alListenerfv",               (ALvoid *) alListenerfv              },
  51     { "alListeneri",                (ALvoid *) alListeneri               },
  52     { "alListener3i",               (ALvoid *) alListener3i              },
  53     { "alListeneriv",               (ALvoid *) alListeneriv              },
  54     { "alGetListenerf",             (ALvoid *) alGetListenerf            },
  55     { "alGetListener3f",            (ALvoid *) alGetListener3f           },
  56     { "alGetListenerfv",            (ALvoid *) alGetListenerfv           },
  57     { "alGetListeneri",             (ALvoid *) alGetListeneri            },
  58     { "alGetListener3i",            (ALvoid *) alGetListener3i           },
  59     { "alGetListeneriv",            (ALvoid *) alGetListeneriv           },
  60     { "alGenSources",               (ALvoid *) alGenSources              },
  61     { "alDeleteSources",            (ALvoid *) alDeleteSources           },
  62     { "alIsSource",                 (ALvoid *) alIsSource                },
  63     { "alSourcef",                  (ALvoid *) alSourcef                 },
  64     { "alSource3f",                 (ALvoid *) alSource3f                },
  65     { "alSourcefv",                 (ALvoid *) alSourcefv                },
  66     { "alSourcei",                  (ALvoid *) alSourcei                 },
  67     { "alSource3i",                 (ALvoid *) alSource3i                },
  68     { "alSourceiv",                 (ALvoid *) alSourceiv                },
  69     { "alGetSourcef",               (ALvoid *) alGetSourcef              },
  70     { "alGetSource3f",              (ALvoid *) alGetSource3f             },
  71     { "alGetSourcefv",              (ALvoid *) alGetSourcefv             },
  72     { "alGetSourcei",               (ALvoid *) alGetSourcei              },
  73     { "alGetSource3i",              (ALvoid *) alGetSource3i             },
  74     { "alGetSourceiv",              (ALvoid *) alGetSourceiv             },
  75     { "alSourcePlayv",              (ALvoid *) alSourcePlayv             },
  76     { "alSourceStopv",              (ALvoid *) alSourceStopv             },
  77     { "alSourceRewindv",            (ALvoid *) alSourceRewindv           },
  78     { "alSourcePausev",             (ALvoid *) alSourcePausev            },
  79     { "alSourcePlay",               (ALvoid *) alSourcePlay              },
  80     { "alSourceStop",               (ALvoid *) alSourceStop              },
  81     { "alSourceRewind",             (ALvoid *) alSourceRewind            },
  82     { "alSourcePause",              (ALvoid *) alSourcePause             },
  83     { "alSourceQueueBuffers",       (ALvoid *) alSourceQueueBuffers      },
  84     { "alSourceUnqueueBuffers",     (ALvoid *) alSourceUnqueueBuffers    },
  85     { "alGenBuffers",               (ALvoid *) alGenBuffers              },
  86     { "alDeleteBuffers",            (ALvoid *) alDeleteBuffers           },
  87     { "alIsBuffer",                 (ALvoid *) alIsBuffer                },
  88     { "alBufferData",               (ALvoid *) alBufferData              },
  89     { "alBufferf",                  (ALvoid *) alBufferf                 },
  90     { "alBuffer3f",                 (ALvoid *) alBuffer3f                },
  91     { "alBufferfv",                 (ALvoid *) alBufferfv                },
  92     { "alBufferi",                  (ALvoid *) alBufferi                 },
  93     { "alBuffer3i",                 (ALvoid *) alBuffer3i                },
  94     { "alBufferiv",                 (ALvoid *) alBufferiv                },
  95     { "alGetBufferf",               (ALvoid *) alGetBufferf              },
  96     { "alGetBuffer3f",              (ALvoid *) alGetBuffer3f             },
  97     { "alGetBufferfv",              (ALvoid *) alGetBufferfv             },
  98     { "alGetBufferi",               (ALvoid *) alGetBufferi              },
  99     { "alGetBuffer3i",              (ALvoid *) alGetBuffer3i             },
 100     { "alGetBufferiv",              (ALvoid *) alGetBufferiv             },
 101     { "alDopplerFactor",            (ALvoid *) alDopplerFactor           },
 102     { "alDopplerVelocity",          (ALvoid *) alDopplerVelocity         },
 103     { "alSpeedOfSound",             (ALvoid *) alSpeedOfSound            },
 104     { "alDistanceModel",            (ALvoid *) alDistanceModel           },
 105
 106     { "alGenFilters",               (ALvoid *) alGenFilters              },
 107     { "alDeleteFilters",            (ALvoid *) alDeleteFilters           },
 108     { "alIsFilter",                 (ALvoid *) alIsFilter                },
 109     { "alFilteri",                  (ALvoid *) alFilteri                 },
 110     { "alFilteriv",                 (ALvoid *) alFilteriv                },
 111     { "alFilterf",                  (ALvoid *) alFilterf                 },
 112     { "alFilterfv",                 (ALvoid *) alFilterfv                },
 113     { "alGetFilteri",               (ALvoid *) alGetFilteri              },
 114     { "alGetFilteriv",              (ALvoid *) alGetFilteriv             },
 115     { "alGetFilterf",               (ALvoid *) alGetFilterf              },
 116     { "alGetFilterfv",              (ALvoid *) alGetFilterfv             },
 117
 118     { NULL,                         (ALvoid *) NULL                      } };
 119
 120 static ALenums enumeration[]={
 121     // Types
 122     { (ALchar *)"AL_INVALID",                           AL_INVALID                          },
 123     { (ALchar *)"AL_NONE",                              AL_NONE                             },
 124     { (ALchar *)"AL_FALSE",                             AL_FALSE                            },
 125     { (ALchar *)"AL_TRUE",                              AL_TRUE                             },
 126
 127     // Source and Listener Properties
 128     { (ALchar *)"AL_SOURCE_RELATIVE",                   AL_SOURCE_RELATIVE                  },
 129     { (ALchar *)"AL_CONE_INNER_ANGLE",                  AL_CONE_INNER_ANGLE                 },
 130     { (ALchar *)"AL_CONE_OUTER_ANGLE",                  AL_CONE_OUTER_ANGLE                 },
 131     { (ALchar *)"AL_PITCH",                             AL_PITCH                            },
 132     { (ALchar *)"AL_POSITION",                          AL_POSITION                         },
 133     { (ALchar *)"AL_DIRECTION",                         AL_DIRECTION                        },
 134     { (ALchar *)"AL_VELOCITY",                          AL_VELOCITY                         },
 135     { (ALchar *)"AL_LOOPING",                           AL_LOOPING                          },
 136     { (ALchar *)"AL_BUFFER",                            AL_BUFFER                           },
 137     { (ALchar *)"AL_GAIN",                              AL_GAIN                             },
 138     { (ALchar *)"AL_MIN_GAIN",                          AL_MIN_GAIN                         },
 139     { (ALchar *)"AL_MAX_GAIN",                          AL_MAX_GAIN                         },
 140     { (ALchar *)"AL_ORIENTATION",                       AL_ORIENTATION                      },
 141     { (ALchar *)"AL_REFERENCE_DISTANCE",                AL_REFERENCE_DISTANCE               },
 142     { (ALchar *)"AL_ROLLOFF_FACTOR",                    AL_ROLLOFF_FACTOR                   },
 143     { (ALchar *)"AL_CONE_OUTER_GAIN",                   AL_CONE_OUTER_GAIN                  },
 144     { (ALchar *)"AL_MAX_DISTANCE",                      AL_MAX_DISTANCE                     },
 145     { (ALchar *)"AL_SEC_OFFSET",                        AL_SEC_OFFSET                       },
 146     { (ALchar *)"AL_SAMPLE_OFFSET",                     AL_SAMPLE_OFFSET                    },
 147     { (ALchar *)"AL_BYTE_OFFSET",                       AL_BYTE_OFFSET                      },
 148     { (ALchar *)"AL_SOURCE_TYPE",                       AL_SOURCE_TYPE                      },
 149     { (ALchar *)"AL_STATIC",                            AL_STATIC                           },
 150     { (ALchar *)"AL_STREAMING",                         AL_STREAMING                        },
 151     { (ALchar *)"AL_UNDETERMINED",                      AL_UNDETERMINED                     },
 152
 153     // Source State information
 154     { (ALchar *)"AL_SOURCE_STATE",                      AL_SOURCE_STATE                     },
 155     { (ALchar *)"AL_INITIAL",                           AL_INITIAL                          },
 156     { (ALchar *)"AL_PLAYING",                           AL_PLAYING                          },
 157     { (ALchar *)"AL_PAUSED",                            AL_PAUSED                           },
 158     { (ALchar *)"AL_STOPPED",                           AL_STOPPED                          },
 159
 160     // Queue information
 161     { (ALchar *)"AL_BUFFERS_QUEUED",                    AL_BUFFERS_QUEUED                   },
 162     { (ALchar *)"AL_BUFFERS_PROCESSED",                 AL_BUFFERS_PROCESSED                },
 163
 164     // Buffer Formats
 165     { (ALchar *)"AL_FORMAT_MONO8",                      AL_FORMAT_MONO8                     },
 166     { (ALchar *)"AL_FORMAT_MONO16",                     AL_FORMAT_MONO16                    },
 167     { (ALchar *)"AL_FORMAT_STEREO8",                    AL_FORMAT_STEREO8                   },
 168     { (ALchar *)"AL_FORMAT_STEREO16",                   AL_FORMAT_STEREO16                  },
 169     { (ALchar *)"AL_FORMAT_MONO_IMA4",                  AL_FORMAT_MONO_IMA4                 },
 170     { (ALchar *)"AL_FORMAT_STEREO_IMA4",                AL_FORMAT_STEREO_IMA4               },
 171     { (ALchar *)"AL_FORMAT_QUAD8",                      AL_FORMAT_QUAD8                     },
 172     { (ALchar *)"AL_FORMAT_QUAD16",                     AL_FORMAT_QUAD16                    },
 173
 174     // Buffer attributes
 175     { (ALchar *)"AL_FREQUENCY",                         AL_FREQUENCY                        },
 176     { (ALchar *)"AL_BITS",                              AL_BITS                             },
 177     { (ALchar *)"AL_CHANNELS",                          AL_CHANNELS                         },
 178     { (ALchar *)"AL_SIZE",                              AL_SIZE                             },
 179
 180     // Buffer States (not supported yet)
 181     { (ALchar *)"AL_UNUSED",                            AL_UNUSED                           },
 182     { (ALchar *)"AL_PENDING",                           AL_PENDING                          },
 183     { (ALchar *)"AL_PROCESSED",                         AL_PROCESSED                        },
 184
 185     // AL Error Messages
 186     { (ALchar *)"AL_NO_ERROR",                          AL_NO_ERROR                         },
 187     { (ALchar *)"AL_INVALID_NAME",                      AL_INVALID_NAME                     },
 188     { (ALchar *)"AL_INVALID_ENUM",                      AL_INVALID_ENUM                     },
 189     { (ALchar *)"AL_INVALID_VALUE",                     AL_INVALID_VALUE                    },
 190     { (ALchar *)"AL_INVALID_OPERATION",                 AL_INVALID_OPERATION                },
 191     { (ALchar *)"AL_OUT_OF_MEMORY",                     AL_OUT_OF_MEMORY                    },
 192
 193     // Context strings
 194     { (ALchar *)"AL_VENDOR",                            AL_VENDOR                           },
 195     { (ALchar *)"AL_VERSION",                           AL_VERSION                          },
 196     { (ALchar *)"AL_RENDERER",                          AL_RENDERER                         },
 197     { (ALchar *)"AL_EXTENSIONS",                        AL_EXTENSIONS                       },
 198
 199     // Global states
 200     { (ALchar *)"AL_DOPPLER_FACTOR",                    AL_DOPPLER_FACTOR                   },
 201     { (ALchar *)"AL_DOPPLER_VELOCITY",                  AL_DOPPLER_VELOCITY                 },
 202     { (ALchar *)"AL_DISTANCE_MODEL",                    AL_DISTANCE_MODEL                   },
 203     { (ALchar *)"AL_SPEED_OF_SOUND",                    AL_SPEED_OF_SOUND                   },
 204
 205     // Distance Models
 206     { (ALchar *)"AL_INVERSE_DISTANCE",                  AL_INVERSE_DISTANCE                 },
 207     { (ALchar *)"AL_INVERSE_DISTANCE_CLAMPED",          AL_INVERSE_DISTANCE_CLAMPED         },
 208     { (ALchar *)"AL_LINEAR_DISTANCE",                   AL_LINEAR_DISTANCE                  },
 209     { (ALchar *)"AL_LINEAR_DISTANCE_CLAMPED",           AL_LINEAR_DISTANCE_CLAMPED          },
 210     { (ALchar *)"AL_EXPONENT_DISTANCE",                 AL_EXPONENT_DISTANCE                },
 211     { (ALchar *)"AL_EXPONENT_DISTANCE_CLAMPED",         AL_EXPONENT_DISTANCE_CLAMPED        },
 212
 213     // Filter types
 214     { (ALchar *)"AL_FILTER_TYPE",                       AL_FILTER_TYPE                      },
 215     { (ALchar *)"AL_FILTER_NULL",                       AL_FILTER_NULL                      },
 216     { (ALchar *)"AL_FILTER_LOWPASS",                    AL_FILTER_LOWPASS                   },
 217     { (ALchar *)"AL_FILTER_HIGHPASS",                   AL_FILTER_HIGHPASS                  },
 218     { (ALchar *)"AL_FILTER_BANDPASS",                   AL_FILTER_BANDPASS                  },
 219
 220     // Default
 221     { (ALchar *)NULL,                                (ALenum  ) 0                         } };
 222
 223
 224
 225 ALAPI ALboolean ALAPIENTRY alIsExtensionPresent(const ALchar *extName)
 226 {
 227     ALboolean bIsSupported = AL_FALSE;
 228     ALCcontext *pContext;
 229     char *ptr, *ext;
 230
 231     if (!extName)
 232     {
 233         alSetError(AL_INVALID_VALUE);
 234         return AL_FALSE;
 235     }
 236
 237     pContext = alcGetCurrentContext();
 238     if(!pContext)
 239     {
 240         alSetError(AL_INVALID_OPERATION);
 241         return AL_FALSE;
 242     }
 243
 244     ext = strdup(extName);
 245     ptr = ext;
 246     do {
 247         *ptr = (char)toupper(*ptr);
 248     } while(*(ptr++));
 249
 250     SuspendContext(pContext);
 251
 252     ptr = pContext->ExtensionList;
 253     while((ptr=strstr(ptr, ext)) != NULL)
 254     {
 255         if(ptr == pContext->ExtensionList || ptr[-1] == ' ')
 256         {
 257             char e = ptr[strlen(ext)];
 258             if(e == ' ' || e == 0)
 259             {
 260                 bIsSupported = AL_TRUE;
 261                 break;
 262             }
 263         }
 264         ptr++;
 265     }
 266
 267     ProcessContext(pContext);
 268
 269     free(ext);
 270     return bIsSupported;
 271 }
 272
 273
 274 ALAPI ALvoid * ALAPIENTRY alGetProcAddress(const ALchar *funcName)
 275 {
 276     ALsizei i = 0;
 277
 278     while(function[i].funcName &&
 279           strcmp((char*)function[i].funcName, (char*)funcName) != 0)
 280         i++;
 281
 282     return function[i].address;
 283 }
 284
 285 /* NOTE: This function must be able to run without a context! */
 286 ALAPI ALenum ALAPIENTRY alGetEnumValue(const ALchar *enumName)
 287 {
 288     ALsizei i = 0;
 289
 290     while(enumeration[i].enumName &&
 291           strcmp(enumeration[i].enumName, enumName) != 0)
 292         i++;
 293
 294     return enumeration[i].value;
 295 }