include/xaudio2.idl

   1 /*
   2  * Copyright (c) 2015 Mark Harmstone
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 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  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 import "unknwn.idl";
  20 import "mmdeviceapi.idl";
  21
  22 import "audiosessiontypes.h";
  23
  24 cpp_quote("#include <pshpack1.h>")
  25
  26 [
  27     uuid(fac23f48-31f5-45a8-b49b-5225d61401aa)
  28 ]
  29 coclass XAudio20 {
  30     interface IUnknown;
  31 }
  32
  33 [
  34     uuid(e21a7345-eb21-468e-be50-804db97cf708)
  35 ]
  36 coclass XAudio21 {
  37     interface IUnknown;
  38 }
  39
  40 [
  41     uuid(b802058a-464a-42db-bc10-b650d6f2586a)
  42 ]
  43 coclass XAudio22 {
  44     interface IUnknown;
  45 }
  46
  47 [
  48     uuid(4c5e637a-16c7-4de3-9c46-5ed22181962d)
  49 ]
  50 coclass XAudio23 {
  51     interface IUnknown;
  52 }
  53
  54 [
  55     uuid(03219e78-5bc3-44d1-b92e-f63d89cc6526)
  56 ]
  57 coclass XAudio24 {
  58     interface IUnknown;
  59 }
  60
  61 [
  62     uuid(4c9b6dde-6809-46e6-a278-9b6a97588670)
  63 ]
  64 coclass XAudio25 {
  65     interface IUnknown;
  66 }
  67
  68 [
  69     uuid(3eda9b49-2085-498b-9bb2-39a6778493de)
  70 ]
  71 coclass XAudio26 {
  72     interface IUnknown;
  73 }
  74
  75 [
  76     uuid(5a508685-a254-4fba-9b82-9a24b00306af)
  77 ]
  78 coclass XAudio27 {
  79     interface IUnknown;
  80 }
  81
  82 [
  83     uuid(db05ea35-0329-4d4b-a53a-6dead03d3852)
  84 ]
  85 coclass XAudio2Debug {
  86     interface IUnknown;
  87 }
  88
  89 cpp_quote("#if 0")
  90 typedef struct WAVEFORMATEX
  91 {
  92     WORD wFormatTag;
  93     WORD nChannels;
  94     DWORD nSamplesPerSec;
  95     DWORD nAvgBytesPerSec;
  96     WORD nBlockAlign;
  97     WORD wBitsPerSample;
  98     WORD cbSize;
  99 } WAVEFORMATEX;
 100
 101 typedef struct {
 102     WAVEFORMATEX    Format;
 103     union {
 104         WORD        wValidBitsPerSample;
 105         WORD        wSamplesPerBlock;
 106         WORD        wReserved;
 107     } Samples;
 108     DWORD           dwChannelMask;
 109     GUID            SubFormat;
 110 } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE;
 111 cpp_quote("#else")
 112 cpp_quote("#include <mmreg.h>")
 113 cpp_quote("#endif")
 114
 115 interface IXAudio2Voice;
 116
 117 typedef enum XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER
 118 {
 119     Processor1  = 0x00000001,
 120     Processor2  = 0x00000002,
 121     Processor3  = 0x00000004,
 122     Processor4  = 0x00000008,
 123     Processor5  = 0x00000010,
 124     Processor6  = 0x00000020,
 125     Processor7  = 0x00000040,
 126     Processor8  = 0x00000080,
 127     Processor9  = 0x00000100,
 128     Processor10 = 0x00000200,
 129     Processor11 = 0x00000400,
 130     Processor12 = 0x00000800,
 131     Processor13 = 0x00001000,
 132     Processor14 = 0x00002000,
 133     Processor15 = 0x00004000,
 134     Processor16 = 0x00008000,
 135     Processor17 = 0x00010000,
 136     Processor18 = 0x00020000,
 137     Processor19 = 0x00040000,
 138     Processor20 = 0x00080000,
 139     Processor21 = 0x00100000,
 140     Processor22 = 0x00200000,
 141     Processor23 = 0x00400000,
 142     Processor24 = 0x00800000,
 143     Processor25 = 0x01000000,
 144     Processor26 = 0x02000000,
 145     Processor27 = 0x04000000,
 146     Processor28 = 0x08000000,
 147     Processor29 = 0x10000000,
 148     Processor30 = 0x20000000,
 149     Processor31 = 0x40000000,
 150     Processor32 = 0x80000000,
 151     XAUDIO2_ANY_PROCESSOR = 0xffffffff,
 152     XAUDIO2_DEFAULT_PROCESSOR = XAUDIO2_ANY_PROCESSOR
 153 } XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER, XAUDIO2_PROCESSOR;
 154
 155 typedef struct XAUDIO2_PERFORMANCE_DATA
 156 {
 157     UINT64 AudioCyclesSinceLastQuery;
 158     UINT64 TotalCyclesSinceLastQuery;
 159     UINT32 MinimumCyclesPerQuantum;
 160     UINT32 MaximumCyclesPerQuantum;
 161     UINT32 MemoryUsageInBytes;
 162     UINT32 CurrentLatencyInSamples;
 163     UINT32 GlitchesSinceEngineStarted;
 164     UINT32 ActiveSourceVoiceCount;
 165     UINT32 TotalSourceVoiceCount;
 166     UINT32 ActiveSubmixVoiceCount;
 167     UINT32 ActiveResamplerCount;
 168     UINT32 ActiveMatrixMixCount;
 169     UINT32 ActiveXmaSourceVoices;
 170     UINT32 ActiveXmaStreams;
 171 } XAUDIO2_PERFORMANCE_DATA;
 172
 173 typedef struct XAUDIO22_PERFORMANCE_DATA
 174 {
 175     UINT64 AudioCyclesSinceLastQuery;
 176     UINT64 TotalCyclesSinceLastQuery;
 177     UINT32 MinimumCyclesPerQuantum;
 178     UINT32 MaximumCyclesPerQuantum;
 179     UINT32 MemoryUsageInBytes;
 180     UINT32 CurrentLatencyInSamples;
 181     UINT32 GlitchesSinceEngineStarted;
 182     UINT32 ActiveSourceVoiceCount;
 183     UINT32 TotalSourceVoiceCount;
 184     UINT32 ActiveSubmixVoiceCount;
 185     UINT32 TotalSubmixVoiceCount;
 186     UINT32 ActiveXmaSourceVoices;
 187     UINT32 ActiveXmaStreams;
 188 } XAUDIO22_PERFORMANCE_DATA;
 189
 190 typedef struct XAUDIO20_PERFORMANCE_DATA
 191 {
 192     UINT64 AudioCyclesSinceLastQuery;
 193     UINT64 TotalCyclesSinceLastQuery;
 194     UINT32 MinimumCyclesPerQuantum;
 195     UINT32 MaximumCyclesPerQuantum;
 196     UINT32 MemoryUsageInBytes;
 197     UINT32 CurrentLatencyInSamples;
 198     UINT32 GlitchesSinceLastQuery;
 199     UINT32 ActiveSourceVoiceCount;
 200     UINT32 TotalSourceVoiceCount;
 201     UINT32 ActiveSubmixVoiceCount;
 202     UINT32 TotalSubmixVoiceCount;
 203     UINT32 ActiveXmaSourceVoices;
 204     UINT32 ActiveXmaStreams;
 205 } XAUDIO20_PERFORMANCE_DATA;
 206
 207 typedef enum XAUDIO2_DEVICE_ROLE
 208 {
 209     NotDefaultDevice            = 0x0,
 210     DefaultConsoleDevice        = 0x1,
 211     DefaultMultimediaDevice     = 0x2,
 212     DefaultCommunicationsDevice = 0x4,
 213     DefaultGameDevice           = 0x8,
 214     GlobalDefaultDevice         = 0xf,
 215     InvalidDeviceRole = ~GlobalDefaultDevice
 216 } XAUDIO2_DEVICE_ROLE;
 217
 218 typedef struct XAUDIO2_DEVICE_DETAILS
 219 {
 220     WCHAR DeviceID[256];
 221     WCHAR DisplayName[256];
 222     XAUDIO2_DEVICE_ROLE Role;
 223     WAVEFORMATEXTENSIBLE OutputFormat;
 224 } XAUDIO2_DEVICE_DETAILS;
 225
 226 typedef struct XAUDIO27_VOICE_DETAILS
 227 {
 228     UINT32 CreationFlags;
 229     UINT32 InputChannels;
 230     UINT32 InputSampleRate;
 231 } XAUDIO27_VOICE_DETAILS;
 232
 233 typedef struct XAUDIO2_VOICE_DETAILS
 234 {
 235     UINT32 CreationFlags;
 236     UINT32 ActiveFlags;
 237     UINT32 InputChannels;
 238     UINT32 InputSampleRate;
 239 } XAUDIO2_VOICE_DETAILS;
 240
 241 typedef struct XAUDIO2_SEND_DESCRIPTOR
 242 {
 243     UINT32 Flags;
 244     IXAudio2Voice* pOutputVoice;
 245 } XAUDIO2_SEND_DESCRIPTOR;
 246
 247 /* XAudio2 2.3's XAUDIO2_VOICE_SENDS struct */
 248 typedef struct XAUDIO23_VOICE_SENDS
 249 {
 250     UINT32 OutputCount;
 251     IXAudio2Voice **pOutputVoices;
 252 } XAUDIO23_VOICE_SENDS;
 253
 254 typedef struct XAUDIO2_VOICE_SENDS
 255 {
 256     UINT32 SendCount;
 257     XAUDIO2_SEND_DESCRIPTOR* pSends;
 258 } XAUDIO2_VOICE_SENDS;
 259
 260 typedef struct XAUDIO2_EFFECT_DESCRIPTOR
 261 {
 262     IUnknown* pEffect;
 263     BOOL InitialState;
 264     UINT32 OutputChannels;
 265 } XAUDIO2_EFFECT_DESCRIPTOR;
 266
 267 typedef struct XAUDIO2_EFFECT_CHAIN
 268 {
 269     UINT32 EffectCount;
 270     XAUDIO2_EFFECT_DESCRIPTOR* pEffectDescriptors;
 271 } XAUDIO2_EFFECT_CHAIN;
 272
 273 const UINT32 XAUDIO2_MAX_BUFFER_BYTES = 0x80000000;
 274 const UINT32 XAUDIO2_MAX_QUEUED_BUFFERS = 64;
 275 const UINT32 XAUDIO2_MAX_BUFFERS_SYSTEM = 2;
 276 const UINT32 XAUDIO2_MAX_AUDIO_CHANNELS = 64;
 277 const UINT32 XAUDIO2_MIN_SAMPLE_RATE = 1000;
 278 const UINT32 XAUDIO2_MAX_SAMPLE_RATE = 200000;
 279 const float XAUDIO2_MAX_VOLUME_LEVEL = 16777216.0;
 280 const float XAUDIO2_MIN_FREQ_RATIO = (1/1024.0);
 281 const float XAUDIO2_MAX_FREQ_RATIO = 1024.0;
 282 const float XAUDIO2_DEFAULT_FREQ_RATIO = 2.0;
 283 const float XAUDIO2_MAX_FILTER_ONEOVERQ = 1.5;
 284 const float XAUDIO2_MAX_FILTER_FREQUENCY = 1.0;
 285 const UINT32 XAUDIO2_MAX_LOOP_COUNT = 254;
 286 const UINT32 XAUDIO20_MAX_LOOP_COUNT = 0x100000; /* xaudio 2.0 */
 287
 288 const UINT32 XAUDIO2_COMMIT_NOW = 0;
 289 const UINT32 XAUDIO2_COMMIT_ALL = 0;
 290 const UINT32 XAUDIO2_INVALID_OPSET = 0xffffffff;
 291 const UINT32 XAUDIO2_NO_LOOP_REGION = 0;
 292 const UINT32 XAUDIO2_LOOP_INFINITE = 255;
 293 const UINT32 XAUDIO20_LOOP_INFINITE = ((UINT)-1); /* xaudio 2.0 */
 294 const UINT32 XAUDIO2_DEFAULT_CHANNELS = 0;
 295 const UINT32 XAUDIO2_DEFAULT_SAMPLERATE = 0;
 296
 297 [
 298     object,
 299     local
 300 ]
 301 interface IXAudio2EngineCallback
 302 {
 303     void OnProcessingPassStart();
 304
 305     void OnProcessingPassEnd();
 306
 307     void OnCriticalError([in] HRESULT Error);
 308 }
 309
 310 typedef enum XAUDIO2_FILTER_TYPE
 311 {
 312     LowPassFilter,
 313     BandPassFilter,
 314     HighPassFilter,
 315     NotchFilter
 316 } XAUDIO2_FILTER_TYPE;
 317
 318 typedef struct XAUDIO2_FILTER_PARAMETERS
 319 {
 320     XAUDIO2_FILTER_TYPE Type;
 321     float Frequency;
 322     float OneOverQ;
 323 } XAUDIO2_FILTER_PARAMETERS;
 324
 325 /* XAudio 2.0's IXAudio2Voice */
 326 /* XAudio2 2.0's IXAudio2Voice interface. Actually called
 327  * IXAudio2Voice in the Mar 2008 DX SDK */
 328 [
 329     object,
 330     local
 331 ]
 332 interface IXAudio20Voice
 333 {
 334     void GetVoiceDetails([out] XAUDIO27_VOICE_DETAILS* pVoiceDetails);
 335
 336     HRESULT SetOutputVoices([in] const XAUDIO23_VOICE_SENDS* pSendList);
 337
 338     HRESULT SetEffectChain([in] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 339
 340     HRESULT EnableEffect(
 341         [in] UINT32 EffectIndex,
 342         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 343
 344     HRESULT DisableEffect(
 345         [in] UINT32 EffectIndex,
 346         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 347
 348     void GetEffectState(
 349         [in] UINT32 EffectIndex,
 350         [out] BOOL* pEnabled);
 351
 352     HRESULT SetEffectParameters(
 353         [in] UINT32 EffectIndex,
 354         [in] const void* pParameters,
 355         [in] UINT32 ParametersByteSize,
 356         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 357
 358     HRESULT GetEffectParameters(
 359         [in] UINT32 EffectIndex,
 360         [out] void* pParameters,
 361         [in] UINT32 ParametersByteSize);
 362
 363     HRESULT SetFilterParameters(
 364         [in] const XAUDIO2_FILTER_PARAMETERS* pParameters,
 365         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 366
 367     void GetFilterParameters([out] XAUDIO2_FILTER_PARAMETERS* pParameters);
 368
 369     HRESULT SetVolume(
 370         [in] float Volume,
 371         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 372
 373     void GetVolume([out] float* pVolume);
 374
 375     HRESULT SetChannelVolumes(
 376         [in] UINT32 Channels,
 377         [in, size_is(Channels)] const float* pVolumes,
 378         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 379
 380     void GetChannelVolumes(
 381         [in] UINT32 Channels,
 382         [out, size_is(Channels)] float* pVolumes);
 383
 384     HRESULT SetOutputMatrix(
 385         [in] IXAudio2Voice* pDestinationVoice,
 386         [in] UINT32 SourceChannels,
 387         [in] UINT32 DestinationChannels,
 388         [in, size_is(SourceChannels * DestinationChannels)] const float* pLevelMatrix,
 389         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 390
 391     HRESULT GetOutputMatrix(
 392         [in] IXAudio2Voice* pDestinationVoice,
 393         [in] UINT32 SourceChannels,
 394         [in] UINT32 DestinationChannels,
 395         [out, size_is(SourceChannels * DestinationChannels)] float* pLevelMatrix);
 396
 397     void DestroyVoice();
 398 }
 399
 400 /* XAudio 2.3's IXAudio2Voice */
 401 /* XAudio2 2.3's IXAudio2Voice interface. Actually called
 402  * IXAudio2Voice in the Nov 2008 DX SDK */
 403 [
 404     object,
 405     local
 406 ]
 407 interface IXAudio23Voice
 408 {
 409     void GetVoiceDetails([out] XAUDIO27_VOICE_DETAILS* pVoiceDetails);
 410
 411     HRESULT SetOutputVoices([in] const XAUDIO23_VOICE_SENDS* pSendList);
 412
 413     HRESULT SetEffectChain([in] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 414
 415     HRESULT EnableEffect(
 416         [in] UINT32 EffectIndex,
 417         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 418
 419     HRESULT DisableEffect(
 420         [in] UINT32 EffectIndex,
 421         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 422
 423     void GetEffectState(
 424         [in] UINT32 EffectIndex,
 425         [out] BOOL* pEnabled);
 426
 427     HRESULT SetEffectParameters(
 428         [in] UINT32 EffectIndex,
 429         [in] const void* pParameters,
 430         [in] UINT32 ParametersByteSize,
 431         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 432
 433     HRESULT GetEffectParameters(
 434         [in] UINT32 EffectIndex,
 435         [out] void* pParameters,
 436         [in] UINT32 ParametersByteSize);
 437
 438     HRESULT SetFilterParameters(
 439         [in] const XAUDIO2_FILTER_PARAMETERS* pParameters,
 440         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 441
 442     void GetFilterParameters([out] XAUDIO2_FILTER_PARAMETERS* pParameters);
 443
 444     HRESULT SetVolume(
 445         [in] float Volume,
 446         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 447
 448     void GetVolume([out] float* pVolume);
 449
 450     HRESULT SetChannelVolumes(
 451         [in] UINT32 Channels,
 452         [in, size_is(Channels)] const float* pVolumes,
 453         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 454
 455     void GetChannelVolumes(
 456         [in] UINT32 Channels,
 457         [out, size_is(Channels)] float* pVolumes);
 458
 459     HRESULT SetOutputMatrix(
 460         [in] IXAudio2Voice* pDestinationVoice,
 461         [in] UINT32 SourceChannels,
 462         [in] UINT32 DestinationChannels,
 463         [in, size_is(SourceChannels * DestinationChannels)] const float* pLevelMatrix,
 464         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 465
 466     void GetOutputMatrix(
 467         [in] IXAudio2Voice* pDestinationVoice,
 468         [in] UINT32 SourceChannels,
 469         [in] UINT32 DestinationChannels,
 470         [out, size_is(SourceChannels * DestinationChannels)] float* pLevelMatrix);
 471
 472     void DestroyVoice();
 473 }
 474
 475 /* XAudio 2.7's IXAudio2Voice */
 476 /* XAudio2 2.7's IXAudio2Voice interface. Actually called
 477  * IXAudio2Voice in the Jun 2010 DX SDK */
 478 [
 479     object,
 480     local
 481 ]
 482 interface IXAudio27Voice
 483 {
 484     void GetVoiceDetails([out] XAUDIO27_VOICE_DETAILS* pVoiceDetails);
 485
 486     HRESULT SetOutputVoices([in] const XAUDIO2_VOICE_SENDS* pSendList);
 487
 488     HRESULT SetEffectChain([in] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 489
 490     HRESULT EnableEffect(
 491         [in] UINT32 EffectIndex,
 492         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 493
 494     HRESULT DisableEffect(
 495         [in] UINT32 EffectIndex,
 496         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 497
 498     void GetEffectState(
 499         [in] UINT32 EffectIndex,
 500         [out] BOOL* pEnabled);
 501
 502     HRESULT SetEffectParameters(
 503         [in] UINT32 EffectIndex,
 504         [in] const void* pParameters,
 505         [in] UINT32 ParametersByteSize,
 506         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 507
 508     HRESULT GetEffectParameters(
 509         [in] UINT32 EffectIndex,
 510         [out] void* pParameters,
 511         [in] UINT32 ParametersByteSize);
 512
 513     HRESULT SetFilterParameters(
 514         [in] const XAUDIO2_FILTER_PARAMETERS* pParameters,
 515         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 516
 517     void GetFilterParameters([out] XAUDIO2_FILTER_PARAMETERS* pParameters);
 518
 519     HRESULT SetOutputFilterParameters(
 520         [in] IXAudio2Voice* pDestinationVoice,
 521         [in] const XAUDIO2_FILTER_PARAMETERS* pParameters,
 522         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 523
 524     void GetOutputFilterParameters(
 525         [in] IXAudio2Voice* pDestinationVoice,
 526         [out] XAUDIO2_FILTER_PARAMETERS* pParameters);
 527
 528     HRESULT SetVolume(
 529         [in] float Volume,
 530         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 531
 532     void GetVolume([out] float* pVolume);
 533
 534     HRESULT SetChannelVolumes(
 535         [in] UINT32 Channels,
 536         [in, size_is(Channels)] const float* pVolumes,
 537         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 538
 539     void GetChannelVolumes(
 540         [in] UINT32 Channels,
 541         [out, size_is(Channels)] float* pVolumes);
 542
 543     HRESULT SetOutputMatrix(
 544         [in] IXAudio2Voice* pDestinationVoice,
 545         [in] UINT32 SourceChannels,
 546         [in] UINT32 DestinationChannels,
 547         [in, size_is(SourceChannels * DestinationChannels)] const float* pLevelMatrix,
 548         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 549
 550     void GetOutputMatrix(
 551         [in] IXAudio2Voice* pDestinationVoice,
 552         [in] UINT32 SourceChannels,
 553         [in] UINT32 DestinationChannels,
 554         [out, size_is(SourceChannels * DestinationChannels)] float* pLevelMatrix);
 555
 556     void DestroyVoice();
 557 }
 558
 559 [
 560     object,
 561     local
 562 ]
 563 interface IXAudio2Voice
 564 {
 565     void GetVoiceDetails([out] XAUDIO2_VOICE_DETAILS* pVoiceDetails);
 566
 567     HRESULT SetOutputVoices([in] const XAUDIO2_VOICE_SENDS* pSendList);
 568
 569     HRESULT SetEffectChain([in] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 570
 571     HRESULT EnableEffect(
 572         [in] UINT32 EffectIndex,
 573         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 574
 575     HRESULT DisableEffect(
 576         [in] UINT32 EffectIndex,
 577         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 578
 579     void GetEffectState(
 580         [in] UINT32 EffectIndex,
 581         [out] BOOL* pEnabled);
 582
 583     HRESULT SetEffectParameters(
 584         [in] UINT32 EffectIndex,
 585         [in] const void* pParameters,
 586         [in] UINT32 ParametersByteSize,
 587         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 588
 589     HRESULT GetEffectParameters(
 590         [in] UINT32 EffectIndex,
 591         [out] void* pParameters,
 592         [in] UINT32 ParametersByteSize);
 593
 594     HRESULT SetFilterParameters(
 595         [in] const XAUDIO2_FILTER_PARAMETERS* pParameters,
 596         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 597
 598     void GetFilterParameters([out] XAUDIO2_FILTER_PARAMETERS* pParameters);
 599
 600     HRESULT SetOutputFilterParameters(
 601         [in] IXAudio2Voice* pDestinationVoice,
 602         [in] const XAUDIO2_FILTER_PARAMETERS* pParameters,
 603         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 604
 605     void GetOutputFilterParameters(
 606         [in] IXAudio2Voice* pDestinationVoice,
 607         [out] XAUDIO2_FILTER_PARAMETERS* pParameters);
 608
 609     HRESULT SetVolume(
 610         [in] float Volume,
 611         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 612
 613     void GetVolume([out] float* pVolume);
 614
 615     HRESULT SetChannelVolumes(
 616         [in] UINT32 Channels,
 617         [in, size_is(Channels)] const float* pVolumes,
 618         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 619
 620     void GetChannelVolumes(
 621         [in] UINT32 Channels,
 622         [out, size_is(Channels)] float* pVolumes);
 623
 624     HRESULT SetOutputMatrix(
 625         [in] IXAudio2Voice* pDestinationVoice,
 626         [in] UINT32 SourceChannels,
 627         [in] UINT32 DestinationChannels,
 628         [in, size_is(SourceChannels * DestinationChannels)] const float* pLevelMatrix,
 629         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 630
 631     void GetOutputMatrix(
 632         [in] IXAudio2Voice* pDestinationVoice,
 633         [in] UINT32 SourceChannels,
 634         [in] UINT32 DestinationChannels,
 635         [out, size_is(SourceChannels * DestinationChannels)] float* pLevelMatrix);
 636
 637     void DestroyVoice();
 638 }
 639
 640 typedef struct XAUDIO2_BUFFER
 641 {
 642     UINT32 Flags;
 643     UINT32 AudioBytes;
 644     const BYTE* pAudioData;
 645     UINT32 PlayBegin;
 646     UINT32 PlayLength;
 647     UINT32 LoopBegin;
 648     UINT32 LoopLength;
 649     UINT32 LoopCount;
 650     void* pContext;
 651 } XAUDIO2_BUFFER;
 652
 653 typedef struct XAUDIO2_BUFFER_WMA
 654 {
 655     const UINT32* pDecodedPacketCumulativeBytes;
 656     UINT32 PacketCount;
 657 } XAUDIO2_BUFFER_WMA;
 658
 659 typedef struct XAUDIO2_VOICE_STATE
 660 {
 661     void* pCurrentBufferContext;
 662     UINT32 BuffersQueued;
 663     UINT64 SamplesPlayed;
 664 } XAUDIO2_VOICE_STATE;
 665
 666 [
 667     local
 668 ]
 669 /* XAudio2 2.0's IXAudio2SourceVoice interface. Actually called
 670  * IXAudio2SourceVoice in the Mar 2008 DX SDK */
 671 interface IXAudio20SourceVoice : IXAudio20Voice
 672 {
 673     HRESULT Start(
 674         [in, defaultvalue(0)] UINT32 Flags,
 675         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 676
 677     HRESULT Stop(
 678         [in, defaultvalue(0)] UINT32 Flags,
 679         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 680
 681     HRESULT SubmitSourceBuffer(
 682         [in] const XAUDIO2_BUFFER* pBuffer,
 683         [in, defaultvalue(NULL)] const XAUDIO2_BUFFER_WMA* pBufferWMA);
 684
 685     HRESULT FlushSourceBuffers();
 686
 687     HRESULT Discontinuity();
 688
 689     HRESULT ExitLoop([in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 690
 691     void GetState([out] XAUDIO2_VOICE_STATE* pVoiceState);
 692
 693     HRESULT SetFrequencyRatio(
 694         [in] float Ratio,
 695         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 696
 697     void GetFrequencyRatio([out] float* pRatio);
 698 }
 699
 700 [
 701     local
 702 ]
 703 /* XAudio2 2.3's IXAudio2SourceVoice interface. Actually called
 704  * IXAudio2SourceVoice in the Nov 2008 DX SDK */
 705 interface IXAudio23SourceVoice : IXAudio23Voice
 706 {
 707     HRESULT Start(
 708         [in, defaultvalue(0)] UINT32 Flags,
 709         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 710
 711     HRESULT Stop(
 712         [in, defaultvalue(0)] UINT32 Flags,
 713         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 714
 715     HRESULT SubmitSourceBuffer(
 716         [in] const XAUDIO2_BUFFER* pBuffer,
 717         [in, defaultvalue(NULL)] const XAUDIO2_BUFFER_WMA* pBufferWMA);
 718
 719     HRESULT FlushSourceBuffers();
 720
 721     HRESULT Discontinuity();
 722
 723     HRESULT ExitLoop([in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 724
 725     void GetState([out] XAUDIO2_VOICE_STATE* pVoiceState);
 726
 727     HRESULT SetFrequencyRatio(
 728         [in] float Ratio,
 729         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 730
 731     void GetFrequencyRatio([out] float* pRatio);
 732 }
 733
 734 [
 735     local
 736 ]
 737 /* XAudio2 2.7's IXAudio2SourceVoice interface. Actually called
 738  * IXAudio2SourceVoice in the Jun 2010 DX SDK */
 739 interface IXAudio27SourceVoice : IXAudio27Voice
 740 {
 741     HRESULT Start(
 742         [in, defaultvalue(0)] UINT32 Flags,
 743         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 744
 745     HRESULT Stop(
 746         [in, defaultvalue(0)] UINT32 Flags,
 747         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 748
 749     HRESULT SubmitSourceBuffer(
 750         [in] const XAUDIO2_BUFFER* pBuffer,
 751         [in, defaultvalue(NULL)] const XAUDIO2_BUFFER_WMA* pBufferWMA);
 752
 753     HRESULT FlushSourceBuffers();
 754
 755     HRESULT Discontinuity();
 756
 757     HRESULT ExitLoop([in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 758
 759     void GetState([out] XAUDIO2_VOICE_STATE* pVoiceState);
 760
 761     HRESULT SetFrequencyRatio(
 762         [in] float Ratio,
 763         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 764
 765     void GetFrequencyRatio([out] float* pRatio);
 766
 767     HRESULT SetSourceSampleRate([in] UINT32 NewSourceSampleRate);
 768 }
 769
 770 [
 771     local
 772 ]
 773 /* XAudio2 2.8's IXAudio2SourceVoice interface. */
 774 interface IXAudio2SourceVoice : IXAudio2Voice
 775 {
 776     HRESULT Start(
 777         [in, defaultvalue(0)] UINT32 Flags,
 778         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 779
 780     HRESULT Stop(
 781         [in, defaultvalue(0)] UINT32 Flags,
 782         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 783
 784     HRESULT SubmitSourceBuffer(
 785         [in] const XAUDIO2_BUFFER* pBuffer,
 786         [in, defaultvalue(NULL)] const XAUDIO2_BUFFER_WMA* pBufferWMA);
 787
 788     HRESULT FlushSourceBuffers();
 789
 790     HRESULT Discontinuity();
 791
 792     HRESULT ExitLoop([in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 793
 794     void GetState([out] XAUDIO2_VOICE_STATE* pVoiceState, [in, defaultvalue(0)] UINT32 Flags);
 795
 796     HRESULT SetFrequencyRatio(
 797         [in] float Ratio,
 798         [in, defaultvalue(XAUDIO2_COMMIT_NOW)] UINT32 OperationSet);
 799
 800     void GetFrequencyRatio([out] float* pRatio);
 801
 802     HRESULT SetSourceSampleRate([in] UINT32 NewSourceSampleRate);
 803 }
 804
 805 [
 806     local
 807 ]
 808 /* XAudio2 2.0's IXAudio2SubmixVoice interface. Actually called
 809  * IXAudio2SubmixVoice in the Mar 2008 DX SDK */
 810 interface IXAudio20SubmixVoice : IXAudio20Voice
 811 {
 812 }
 813
 814 [
 815     local
 816 ]
 817 /* XAudio2 2.3's IXAudio2SubmixVoice interface. Actually called
 818  * IXAudio2SubmixVoice in the Nov 2008 DX SDK */
 819 interface IXAudio23SubmixVoice : IXAudio23Voice
 820 {
 821 }
 822
 823 [
 824     local
 825 ]
 826 /* XAudio2 2.7's IXAudio2SubmixVoice interface. Actually called
 827  * IXAudio2SubmixVoice in the Jun 2010 DX SDK */
 828 interface IXAudio27SubmixVoice : IXAudio27Voice
 829 {
 830 }
 831
 832 [
 833     local
 834 ]
 835 interface IXAudio2SubmixVoice : IXAudio2Voice
 836 {
 837 }
 838
 839 [
 840     local
 841 ]
 842 /* XAudio2 2.0's IXAudio2MasteringVoice interface. Actually called
 843  * IXAudio2MasteringVoice in the Mar 2008 DX SDK */
 844 interface IXAudio20MasteringVoice : IXAudio20Voice
 845 {
 846 }
 847
 848 [
 849     local
 850 ]
 851 /* XAudio2 2.3's IXAudio2MasteringVoice interface. Actually called
 852  * IXAudio2MasteringVoice in the Nov 2008 DX SDK */
 853 interface IXAudio23MasteringVoice : IXAudio23Voice
 854 {
 855 }
 856
 857 [
 858     local
 859 ]
 860 /* XAudio2 2.7's IXAudio2MasteringVoice interface. Actually called
 861  * IXAudio2MasteringVoice in the Jun 2010 DX SDK */
 862 interface IXAudio27MasteringVoice : IXAudio27Voice
 863 {
 864 }
 865
 866 [
 867     local
 868 ]
 869 interface IXAudio2MasteringVoice : IXAudio2Voice
 870 {
 871     /* not present in XAudio2 2.7 */
 872     void GetChannelMask([out] DWORD *pChannelMask);
 873 }
 874
 875 [
 876     object,
 877     local
 878 ]
 879 interface IXAudio20VoiceCallback
 880 {
 881     void OnVoiceProcessingPassStart();
 882
 883     void OnVoiceProcessingPassEnd();
 884
 885     void OnStreamEnd();
 886
 887     void OnBufferStart([in] void* pBufferContext);
 888
 889     void OnBufferEnd([in] void* pBufferContext);
 890
 891     void OnLoopEnd([in] void* pBufferContext);
 892
 893     void OnVoiceError(
 894         [in] void* pBuffercontext,
 895         [in] HRESULT Error);
 896 }
 897
 898 [
 899     object,
 900     local
 901 ]
 902 interface IXAudio2VoiceCallback
 903 {
 904     void OnVoiceProcessingPassStart([in] UINT32 BytesRequired);
 905
 906     void OnVoiceProcessingPassEnd();
 907
 908     void OnStreamEnd();
 909
 910     void OnBufferStart([in] void* pBufferContext);
 911
 912     void OnBufferEnd([in] void* pBufferContext);
 913
 914     void OnLoopEnd([in] void* pBufferContext);
 915
 916     void OnVoiceError(
 917         [in] void* pBuffercontext,
 918         [in] HRESULT Error);
 919 }
 920
 921 typedef struct XAUDIO2_DEBUG_CONFIGURATION
 922 {
 923     UINT32 TraceMask;
 924     UINT32 BreakMask;
 925     BOOL LogThreadID;
 926     BOOL LogFileline;
 927     BOOL LogFunctionName;
 928     BOOL LogTiming;
 929 } XAUDIO2_DEBUG_CONFIGURATION;
 930
 931 [
 932     object,
 933     uuid(8bcf1f58-9fe7-4583-8ac6-e2adc465c8bb), /* all versions before 28 share IID_IXAudio */
 934 ]
 935 /* XAudio2 2.0's IXAudio2 interface. Actually called IXAudio2 in the Mar 2008
 936  * DX SDK */
 937 interface IXAudio20 : IUnknown
 938 {
 939     HRESULT GetDeviceCount([out] UINT32* pCount);
 940
 941     HRESULT GetDeviceDetails(
 942         [in] UINT32 Index,
 943         [out] XAUDIO2_DEVICE_DETAILS* pDeviceDetails);
 944
 945     HRESULT Initialize(
 946         [in, defaultvalue(0)] UINT32 Flags,
 947         [in, defaultvalue(XAUDIO2_DEFAULT_PROCESSOR)] XAUDIO2_PROCESSOR XAudio2Processor);
 948
 949     HRESULT RegisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
 950
 951     void UnregisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
 952
 953     HRESULT CreateSourceVoice(
 954         [out] IXAudio2SourceVoice** ppSourceVoice,
 955         [in] const WAVEFORMATEX* pSourceFormat,
 956         [in, defaultvalue(0)] UINT32 Flags,
 957         [in, defaultvalue(XAUDIO2_DEFAULT_FREQ_RATIO)] float MaxFrequencyRatio,
 958         [in, defaultvalue(NULL)] IXAudio2VoiceCallback* pCallback,
 959         [in, defaultvalue(NULL)] const XAUDIO23_VOICE_SENDS* pSendList,
 960         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 961
 962     HRESULT CreateSubmixVoice(
 963         [out] IXAudio2SubmixVoice** ppSubmixVoice,
 964         [in] UINT32 InputChannels,
 965         [in] UINT32 InputSampleRate,
 966         [in, defaultvalue(0)] UINT32 Flags,
 967         [in, defaultvalue(0)] UINT32 ProcessingStage,
 968         [in, defaultvalue(NULL)] const XAUDIO23_VOICE_SENDS* pSendList,
 969         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 970
 971     HRESULT CreateMasteringVoice(
 972         [out] IXAudio2MasteringVoice** ppMasteringVoice,
 973         [in, defaultvalue(XAUDIO2_DEFAULT_CHANNELS)] UINT32 InputChannels,
 974         [in, defaultvalue(XAUDIO2_DEFAULT_SAMPLERATE)] UINT32 InputSampleRate,
 975         [in, defaultvalue(0)] UINT32 Flags,
 976         [in, defaultvalue(0)] UINT32 DeviceIndex,
 977         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
 978
 979     HRESULT StartEngine();
 980
 981     void StopEngine();
 982
 983     HRESULT CommitChanges([in] UINT32 OperationSet);
 984
 985     void GetPerformanceData([out] XAUDIO20_PERFORMANCE_DATA* pPerfData);
 986
 987     [local] void SetDebugConfiguration(
 988         [in] const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
 989         [in, defaultvalue(NULL)] void* pReserved);
 990 }
 991
 992 [
 993     object,
 994     uuid(8bcf1f58-9fe7-4583-8ac6-e2adc465c8bb), /* all versions before 28 share IID_IXAudio */
 995 ]
 996 /* XAudio2 2.2's IXAudio2 interface. Actually called IXAudio2 in the Jun 2010
 997  * DX SDK */
 998 interface IXAudio22 : IUnknown
 999 {
1000     HRESULT GetDeviceCount([out] UINT32* pCount);
1001
1002     HRESULT GetDeviceDetails(
1003         [in] UINT32 Index,
1004         [out] XAUDIO2_DEVICE_DETAILS* pDeviceDetails);
1005
1006     HRESULT Initialize(
1007         [in, defaultvalue(0)] UINT32 Flags,
1008         [in, defaultvalue(XAUDIO2_DEFAULT_PROCESSOR)] XAUDIO2_PROCESSOR XAudio2Processor);
1009
1010     HRESULT RegisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1011
1012     void UnregisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1013
1014     HRESULT CreateSourceVoice(
1015         [out] IXAudio2SourceVoice** ppSourceVoice,
1016         [in] const WAVEFORMATEX* pSourceFormat,
1017         [in, defaultvalue(0)] UINT32 Flags,
1018         [in, defaultvalue(XAUDIO2_DEFAULT_FREQ_RATIO)] float MaxFrequencyRatio,
1019         [in, defaultvalue(NULL)] IXAudio2VoiceCallback* pCallback,
1020         [in, defaultvalue(NULL)] const XAUDIO23_VOICE_SENDS* pSendList,
1021         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1022
1023     HRESULT CreateSubmixVoice(
1024         [out] IXAudio2SubmixVoice** ppSubmixVoice,
1025         [in] UINT32 InputChannels,
1026         [in] UINT32 InputSampleRate,
1027         [in, defaultvalue(0)] UINT32 Flags,
1028         [in, defaultvalue(0)] UINT32 ProcessingStage,
1029         [in, defaultvalue(NULL)] const XAUDIO23_VOICE_SENDS* pSendList,
1030         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1031
1032     HRESULT CreateMasteringVoice(
1033         [out] IXAudio2MasteringVoice** ppMasteringVoice,
1034         [in, defaultvalue(XAUDIO2_DEFAULT_CHANNELS)] UINT32 InputChannels,
1035         [in, defaultvalue(XAUDIO2_DEFAULT_SAMPLERATE)] UINT32 InputSampleRate,
1036         [in, defaultvalue(0)] UINT32 Flags,
1037         [in, defaultvalue(0)] UINT32 DeviceIndex,
1038         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1039
1040     HRESULT StartEngine();
1041
1042     void StopEngine();
1043
1044     HRESULT CommitChanges([in] UINT32 OperationSet);
1045
1046     void GetPerformanceData([out] XAUDIO22_PERFORMANCE_DATA* pPerfData);
1047
1048     [local] void SetDebugConfiguration(
1049         [in] const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
1050         [in, defaultvalue(NULL)] void* pReserved);
1051 }
1052
1053 [
1054     object,
1055     uuid(8bcf1f58-9fe7-4583-8ac6-e2adc465c8bb), /* all versions before 28 share IID_IXAudio */
1056 ]
1057 /* XAudio2 2.3's IXAudio2 interface. Actually called IXAudio2 in the Nov 2008
1058  * DX SDK */
1059 interface IXAudio23 : IUnknown
1060 {
1061     HRESULT GetDeviceCount([out] UINT32* pCount);
1062
1063     HRESULT GetDeviceDetails(
1064         [in] UINT32 Index,
1065         [out] XAUDIO2_DEVICE_DETAILS* pDeviceDetails);
1066
1067     HRESULT Initialize(
1068         [in, defaultvalue(0)] UINT32 Flags,
1069         [in, defaultvalue(XAUDIO2_DEFAULT_PROCESSOR)] XAUDIO2_PROCESSOR XAudio2Processor);
1070
1071     HRESULT RegisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1072
1073     void UnregisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1074
1075     HRESULT CreateSourceVoice(
1076         [out] IXAudio2SourceVoice** ppSourceVoice,
1077         [in] const WAVEFORMATEX* pSourceFormat,
1078         [in, defaultvalue(0)] UINT32 Flags,
1079         [in, defaultvalue(XAUDIO2_DEFAULT_FREQ_RATIO)] float MaxFrequencyRatio,
1080         [in, defaultvalue(NULL)] IXAudio2VoiceCallback* pCallback,
1081         [in, defaultvalue(NULL)] const XAUDIO23_VOICE_SENDS* pSendList,
1082         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1083
1084     HRESULT CreateSubmixVoice(
1085         [out] IXAudio2SubmixVoice** ppSubmixVoice,
1086         [in] UINT32 InputChannels,
1087         [in] UINT32 InputSampleRate,
1088         [in, defaultvalue(0)] UINT32 Flags,
1089         [in, defaultvalue(0)] UINT32 ProcessingStage,
1090         [in, defaultvalue(NULL)] const XAUDIO23_VOICE_SENDS* pSendList,
1091         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1092
1093     HRESULT CreateMasteringVoice(
1094         [out] IXAudio2MasteringVoice** ppMasteringVoice,
1095         [in, defaultvalue(XAUDIO2_DEFAULT_CHANNELS)] UINT32 InputChannels,
1096         [in, defaultvalue(XAUDIO2_DEFAULT_SAMPLERATE)] UINT32 InputSampleRate,
1097         [in, defaultvalue(0)] UINT32 Flags,
1098         [in, defaultvalue(0)] UINT32 DeviceIndex,
1099         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1100
1101     HRESULT StartEngine();
1102
1103     void StopEngine();
1104
1105     HRESULT CommitChanges([in] UINT32 OperationSet);
1106
1107     void GetPerformanceData([out] XAUDIO2_PERFORMANCE_DATA* pPerfData);
1108
1109     [local] void SetDebugConfiguration(
1110         [in] const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
1111         [in, defaultvalue(NULL)] void* pReserved);
1112 }
1113
1114 [
1115     object,
1116     uuid(8bcf1f58-9fe7-4583-8ac6-e2adc465c8bb),
1117 ]
1118 /* XAudio2 2.7's IXAudio2 interface. Actually called IXAudio2 in the Jun 2010
1119  * DX SDK */
1120 interface IXAudio27 : IUnknown
1121 {
1122     HRESULT GetDeviceCount([out] UINT32* pCount);
1123
1124     HRESULT GetDeviceDetails(
1125         [in] UINT32 Index,
1126         [out] XAUDIO2_DEVICE_DETAILS* pDeviceDetails);
1127
1128     HRESULT Initialize(
1129         [in, defaultvalue(0)] UINT32 Flags,
1130         [in, defaultvalue(XAUDIO2_DEFAULT_PROCESSOR)] XAUDIO2_PROCESSOR XAudio2Processor);
1131
1132     HRESULT RegisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1133
1134     void UnregisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1135
1136     HRESULT CreateSourceVoice(
1137         [out] IXAudio2SourceVoice** ppSourceVoice,
1138         [in] const WAVEFORMATEX* pSourceFormat,
1139         [in, defaultvalue(0)] UINT32 Flags,
1140         [in, defaultvalue(XAUDIO2_DEFAULT_FREQ_RATIO)] float MaxFrequencyRatio,
1141         [in, defaultvalue(NULL)] IXAudio2VoiceCallback* pCallback,
1142         [in, defaultvalue(NULL)] const XAUDIO2_VOICE_SENDS* pSendList,
1143         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1144
1145     HRESULT CreateSubmixVoice(
1146         [out] IXAudio2SubmixVoice** ppSubmixVoice,
1147         [in] UINT32 InputChannels,
1148         [in] UINT32 InputSampleRate,
1149         [in, defaultvalue(0)] UINT32 Flags,
1150         [in, defaultvalue(0)] UINT32 ProcessingStage,
1151         [in, defaultvalue(NULL)] const XAUDIO2_VOICE_SENDS* pSendList,
1152         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1153
1154     HRESULT CreateMasteringVoice(
1155         [out] IXAudio2MasteringVoice** ppMasteringVoice,
1156         [in, defaultvalue(XAUDIO2_DEFAULT_CHANNELS)] UINT32 InputChannels,
1157         [in, defaultvalue(XAUDIO2_DEFAULT_SAMPLERATE)] UINT32 InputSampleRate,
1158         [in, defaultvalue(0)] UINT32 Flags,
1159         [in, defaultvalue(0)] UINT32 DeviceIndex,
1160         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1161
1162     HRESULT StartEngine();
1163
1164     void StopEngine();
1165
1166     HRESULT CommitChanges([in] UINT32 OperationSet);
1167
1168     void GetPerformanceData([out] XAUDIO2_PERFORMANCE_DATA* pPerfData);
1169
1170     [local] void SetDebugConfiguration(
1171         [in] const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
1172         [in, defaultvalue(NULL)] void* pReserved);
1173 }
1174
1175 /* XAudio2 2.8's IXAudio2 is identical to 2.9's */
1176 cpp_quote("DEFINE_GUID(IID_IXAudio28, 0x60d8dac8, 0x5aa1, 0x4e8e, 0xb5, 0x97, 0x2f, 0x5e, 0x28, 0x83, 0xd4, 0x84);")
1177
1178 [
1179     object,
1180     uuid(2b02e3cf-2e0b-4ec3-be45-1b2a3fe7210d)
1181 ]
1182 /* XAudio2 2.9's IXAudio2 interface. */
1183 interface IXAudio2 : IUnknown
1184 {
1185     HRESULT RegisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1186
1187     void UnregisterForCallbacks([in] IXAudio2EngineCallback* pCallback);
1188
1189     HRESULT CreateSourceVoice(
1190         [out] IXAudio2SourceVoice** ppSourceVoice,
1191         [in] const WAVEFORMATEX* pSourceFormat,
1192         [in, defaultvalue(0)] UINT32 Flags,
1193         [in, defaultvalue(XAUDIO2_DEFAULT_FREQ_RATIO)] float MaxFrequencyRatio,
1194         [in, defaultvalue(NULL)] IXAudio2VoiceCallback* pCallback,
1195         [in, defaultvalue(NULL)] const XAUDIO2_VOICE_SENDS* pSendList,
1196         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1197
1198     HRESULT CreateSubmixVoice(
1199         [out] IXAudio2SubmixVoice** ppSubmixVoice,
1200         [in] UINT32 InputChannels,
1201         [in] UINT32 InputSampleRate,
1202         [in, defaultvalue(0)] UINT32 Flags,
1203         [in, defaultvalue(0)] UINT32 ProcessingStage,
1204         [in, defaultvalue(NULL)] const XAUDIO2_VOICE_SENDS* pSendList,
1205         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain);
1206
1207     HRESULT CreateMasteringVoice(
1208         [out] IXAudio2MasteringVoice** ppMasteringVoice,
1209         [in, defaultvalue(XAUDIO2_DEFAULT_CHANNELS)] UINT32 InputChannels,
1210         [in, defaultvalue(XAUDIO2_DEFAULT_SAMPLERATE)] UINT32 InputSampleRate,
1211         [in, defaultvalue(0)] UINT32 Flags,
1212         [in, defaultvalue(NULL)] LPCWSTR DeviceId,
1213         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain,
1214         [in, defaultvalue(AudioCategory_GameEffects)] AUDIO_STREAM_CATEGORY StreamCategory);
1215
1216     HRESULT StartEngine();
1217
1218     void StopEngine();
1219
1220     HRESULT CommitChanges([in] UINT32 OperationSet);
1221
1222     void GetPerformanceData([out] XAUDIO2_PERFORMANCE_DATA* pPerfData);
1223
1224     [local] void SetDebugConfiguration(
1225         [in] const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
1226         [in, defaultvalue(NULL)] void* pReserved);
1227 }
1228
1229 const UINT32 XAUDIO2_DEBUG_ENGINE = 1;
1230 const UINT32 XAUDIO2_VOICE_NOPITCH = 2;
1231 const UINT32 XAUDIO2_VOICE_NOSRC = 4;
1232 const UINT32 XAUDIO2_VOICE_USEFILTER = 8;
1233 const UINT32 XAUDIO2_VOICE_MUSIC = 16;
1234 const UINT32 XAUDIO2_PLAY_TAILS = 32;
1235 const UINT32 XAUDIO2_END_OF_STREAM = 64;
1236 const UINT32 XAUDIO2_SEND_USEFILTER = 128;
1237 const UINT32 XAUDIO2_VOICE_NOSAMPLESPLAYED = 256;
1238
1239 const XAUDIO2_FILTER_TYPE XAUDIO2_DEFAULT_FILTER_TYPE = LowPassFilter;
1240 const float XAUDIO2_DEFAULT_FILTER_FREQUENCY = XAUDIO2_MAX_FILTER_FREQUENCY;
1241 const float XAUDIO2_DEFAULT_FILTER_ONEOVERQ = 1.0;
1242 const UINT32 XAUDIO2_QUANTUM_NUMERATOR = 1;
1243 const UINT32 XAUDIO2_QUANTUM_DENOMINATOR = 100;
1244 const float XAUDIO2_QUANTUM_MS = (1000.0 * XAUDIO2_QUANTUM_NUMERATOR / XAUDIO2_QUANTUM_DENOMINATOR);
1245
1246 const HRESULT XAUDIO2_E_INVALID_CALL = 0x88960001;
1247 const HRESULT XAUDIO2_E_XMA_DECODER_ERROR = 0x88960002;
1248 const HRESULT XAUDIO2_E_XAPO_CREATION_FAILED = 0x88960003;
1249 const HRESULT XAUDIO2_E_DEVICE_INVALIDATED = 0x88960004;
1250
1251 /* xaudio 2.0 error codes */
1252 const HRESULT XAUDIO20_E_XMA_DECODER_ERROR = 0x88960001;
1253 const HRESULT XAUDIO20_E_XAPO_CREATION_FAILED = 0x88960002;
1254 const HRESULT XAUDIO20_E_DEVICE_INVALIDATED = 0x88960003;
1255
1256 cpp_quote("#ifdef XAUDIO2_HELPER_FUNCTIONS")
1257 cpp_quote("#define _USE_MATH_DEFINES")
1258 cpp_quote("#include <math.h>")
1259 cpp_quote("inline static float XAudio2DecibelsToAmplitudeRatio(float decibels) { return powf(10.0f, decibels/20.0f); }")
1260 cpp_quote("inline static float XAudio2AmplitudeRatioToDecibels(float volume) { if (volume == 0) { return -3.402823466e+38f; } return 20.0f * log10f(volume); }")
1261 cpp_quote("inline static float XAudio2SemitonesToFrequencyRatio(float semitones) { return powf(2.0f, semitones/12.0f); }")
1262 cpp_quote("inline static float XAudio2FrequencyRatioToSemitones(float freqratio) { return 39.86313713864835f * log10f(freqratio); }")
1263 cpp_quote("inline static float XAudio2CutoffFrequencyToRadians(float cutofffreq, UINT32 samplerate) { if ((UINT32)(cutofffreq * 6.0f) >= samplerate) { return XAUDIO2_MAX_FILTER_FREQUENCY; } return 2.0f * sinf((float)M_PI * cutofffreq / samplerate); }")
1264 cpp_quote("inline static float XAudio2RadiansToCutoffFrequency(float radians, float samplerate) { return samplerate * asinf(radians/2.0f) / (float)M_PI; }")
1265 cpp_quote("#endif")
1266
1267 cpp_quote("HRESULT WINAPI XAudio2Create(IXAudio2** pxaudio2, UINT32 flags, XAUDIO2_PROCESSOR processor);")
1268
1269 cpp_quote("#include <poppack.h>")