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1282 lines
61 KiB
1282 lines
61 KiB
/**************************************************************************
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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* File: xaudio2.h
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* Content: Declarations for the XAudio2 game audio API.
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*
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**************************************************************************/
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#ifndef __XAUDIO2_INCLUDED__
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#define __XAUDIO2_INCLUDED__
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/**************************************************************************
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*
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* XAudio2 COM object class and interface IDs.
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*
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**************************************************************************/
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#include <comdecl.h> // For DEFINE_CLSID and DEFINE_IID
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// XAudio 2.0 (March 2008 SDK)
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//DEFINE_CLSID(XAudio2, fac23f48, 31f5, 45a8, b4, 9b, 52, 25, d6, 14, 01, aa);
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//DEFINE_CLSID(XAudio2_Debug, fac23f48, 31f5, 45a8, b4, 9b, 52, 25, d6, 14, 01, db);
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// XAudio 2.1 (June 2008 SDK)
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//DEFINE_CLSID(XAudio2, e21a7345, eb21, 468e, be, 50, 80, 4d, b9, 7c, f7, 08);
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//DEFINE_CLSID(XAudio2_Debug, f7a76c21, 53d4, 46bb, ac, 53, 8b, 45, 9c, ae, 46, bd);
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// XAudio 2.2 (August 2008 SDK)
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//DEFINE_CLSID(XAudio2, b802058a, 464a, 42db, bc, 10, b6, 50, d6, f2, 58, 6a);
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//DEFINE_CLSID(XAudio2_Debug, 97dfb7e7, 5161, 4015, 87, a9, c7, 9e, 6a, 19, 52, cc);
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// XAudio 2.3 (November 2008 SDK)
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//DEFINE_CLSID(XAudio2, 4c5e637a, 16c7, 4de3, 9c, 46, 5e, d2, 21, 81, 96, 2d);
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//DEFINE_CLSID(XAudio2_Debug, ef0aa05d, 8075, 4e5d, be, ad, 45, be, 0c, 3c, cb, b3);
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// XAudio 2.4 (March 2009 SDK)
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//DEFINE_CLSID(XAudio2, 03219e78, 5bc3, 44d1, b9, 2e, f6, 3d, 89, cc, 65, 26);
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//DEFINE_CLSID(XAudio2_Debug, 4256535c, 1ea4, 4d4b, 8a, d5, f9, db, 76, 2e, ca, 9e);
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// XAudio 2.5 (August 2009 SDK)
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//DEFINE_CLSID(XAudio2, 4c9b6dde, 6809, 46e6, a2, 78, 9b, 6a, 97, 58, 86, 70);
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//DEFINE_CLSID(XAudio2_Debug, 715bdd1a, aa82, 436b, b0, fa, 6a, ce, a3, 9b, d0, a1);
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// XAudio 2.6 (February 2010 SDK)
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//DEFINE_CLSID(XAudio2, 3eda9b49, 2085, 498b, 9b, b2, 39, a6, 77, 84, 93, de);
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//DEFINE_CLSID(XAudio2_Debug, 47199894, 7cc2, 444d, 98, 73, ce, d2, 56, 2c, c6, 0e);
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// XAudio 2.7 (June 2010 SDK)
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DEFINE_CLSID(XAudio2, 5a508685, a254, 4fba, 9b, 82, 9a, 24, b0, 03, 06, af);
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DEFINE_CLSID(XAudio2_Debug, db05ea35, 0329, 4d4b, a5, 3a, 6d, ea, d0, 3d, 38, 52);
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DEFINE_IID(IXAudio2, 8bcf1f58, 9fe7, 4583, 8a, c6, e2, ad, c4, 65, c8, bb);
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// Ignore the rest of this header if only the GUID definitions were requested
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#ifndef GUID_DEFS_ONLY
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#ifdef _XBOX
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#include <xobjbase.h> // Xbox COM declarations (IUnknown, etc)
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#else
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#include <objbase.h> // Windows COM declarations
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#endif
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#include <sal.h> // Markers for documenting API semantics
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#include <audiodefs.h> // Basic audio data types and constants
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#include <xma2defs.h> // Data types and constants for XMA2 audio
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// All structures defined in this file use tight field packing
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#pragma pack(push, 1)
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/**************************************************************************
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*
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* XAudio2 constants, flags and error codes.
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*
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**************************************************************************/
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// Numeric boundary values
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#define XAUDIO2_MAX_BUFFER_BYTES 0x80000000 // Maximum bytes allowed in a source buffer
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#define XAUDIO2_MAX_QUEUED_BUFFERS 64 // Maximum buffers allowed in a voice queue
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#define XAUDIO2_MAX_BUFFERS_SYSTEM 2 // Maximum buffers allowed for system threads (Xbox 360 only)
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#define XAUDIO2_MAX_AUDIO_CHANNELS 64 // Maximum channels in an audio stream
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#define XAUDIO2_MIN_SAMPLE_RATE 1000 // Minimum audio sample rate supported
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#define XAUDIO2_MAX_SAMPLE_RATE 200000 // Maximum audio sample rate supported
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#define XAUDIO2_MAX_VOLUME_LEVEL 16777216.0f // Maximum acceptable volume level (2^24)
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#define XAUDIO2_MIN_FREQ_RATIO (1/1024.0f) // Minimum SetFrequencyRatio argument
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#define XAUDIO2_MAX_FREQ_RATIO 1024.0f // Maximum MaxFrequencyRatio argument
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#define XAUDIO2_DEFAULT_FREQ_RATIO 2.0f // Default MaxFrequencyRatio argument
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#define XAUDIO2_MAX_FILTER_ONEOVERQ 1.5f // Maximum XAUDIO2_FILTER_PARAMETERS.OneOverQ
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#define XAUDIO2_MAX_FILTER_FREQUENCY 1.0f // Maximum XAUDIO2_FILTER_PARAMETERS.Frequency
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#define XAUDIO2_MAX_LOOP_COUNT 254 // Maximum non-infinite XAUDIO2_BUFFER.LoopCount
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#define XAUDIO2_MAX_INSTANCES 8 // Maximum simultaneous XAudio2 objects on Xbox 360
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// For XMA voices on Xbox 360 there is an additional restriction on the MaxFrequencyRatio
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// argument and the voice's sample rate: the product of these numbers cannot exceed 600000
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// for one-channel voices or 300000 for voices with more than one channel.
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#define XAUDIO2_MAX_RATIO_TIMES_RATE_XMA_MONO 600000
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#define XAUDIO2_MAX_RATIO_TIMES_RATE_XMA_MULTICHANNEL 300000
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// Numeric values with special meanings
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#define XAUDIO2_COMMIT_NOW 0 // Used as an OperationSet argument
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#define XAUDIO2_COMMIT_ALL 0 // Used in IXAudio2::CommitChanges
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#define XAUDIO2_INVALID_OPSET (UINT32)(-1) // Not allowed for OperationSet arguments
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#define XAUDIO2_NO_LOOP_REGION 0 // Used in XAUDIO2_BUFFER.LoopCount
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#define XAUDIO2_LOOP_INFINITE 255 // Used in XAUDIO2_BUFFER.LoopCount
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#define XAUDIO2_DEFAULT_CHANNELS 0 // Used in CreateMasteringVoice
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#define XAUDIO2_DEFAULT_SAMPLERATE 0 // Used in CreateMasteringVoice
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// Flags
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#define XAUDIO2_DEBUG_ENGINE 0x0001 // Used in XAudio2Create on Windows only
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#define XAUDIO2_VOICE_NOPITCH 0x0002 // Used in IXAudio2::CreateSourceVoice
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#define XAUDIO2_VOICE_NOSRC 0x0004 // Used in IXAudio2::CreateSourceVoice
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#define XAUDIO2_VOICE_USEFILTER 0x0008 // Used in IXAudio2::CreateSource/SubmixVoice
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#define XAUDIO2_VOICE_MUSIC 0x0010 // Used in IXAudio2::CreateSourceVoice
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#define XAUDIO2_PLAY_TAILS 0x0020 // Used in IXAudio2SourceVoice::Stop
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#define XAUDIO2_END_OF_STREAM 0x0040 // Used in XAUDIO2_BUFFER.Flags
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#define XAUDIO2_SEND_USEFILTER 0x0080 // Used in XAUDIO2_SEND_DESCRIPTOR.Flags
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// Default parameters for the built-in filter
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#define XAUDIO2_DEFAULT_FILTER_TYPE LowPassFilter
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#define XAUDIO2_DEFAULT_FILTER_FREQUENCY XAUDIO2_MAX_FILTER_FREQUENCY
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#define XAUDIO2_DEFAULT_FILTER_ONEOVERQ 1.0f
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// Internal XAudio2 constants
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#ifdef _XBOX
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#define XAUDIO2_QUANTUM_NUMERATOR 2 // On Xbox 360, XAudio2 processes audio
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#define XAUDIO2_QUANTUM_DENOMINATOR 375 // in 5.333ms chunks (= 2/375 seconds)
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#else
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#define XAUDIO2_QUANTUM_NUMERATOR 1 // On Windows, XAudio2 processes audio
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#define XAUDIO2_QUANTUM_DENOMINATOR 100 // in 10ms chunks (= 1/100 seconds)
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#endif
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#define XAUDIO2_QUANTUM_MS (1000.0f * XAUDIO2_QUANTUM_NUMERATOR / XAUDIO2_QUANTUM_DENOMINATOR)
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// XAudio2 error codes
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#define FACILITY_XAUDIO2 0x896
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#define XAUDIO2_E_INVALID_CALL 0x88960001 // An API call or one of its arguments was illegal
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#define XAUDIO2_E_XMA_DECODER_ERROR 0x88960002 // The XMA hardware suffered an unrecoverable error
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#define XAUDIO2_E_XAPO_CREATION_FAILED 0x88960003 // XAudio2 failed to initialize an XAPO effect
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#define XAUDIO2_E_DEVICE_INVALIDATED 0x88960004 // An audio device became unusable (unplugged, etc)
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/**************************************************************************
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*
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* Forward declarations for the XAudio2 interfaces.
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*
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**************************************************************************/
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#ifdef __cplusplus
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#define FWD_DECLARE(x) interface x
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#else
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#define FWD_DECLARE(x) typedef interface x x
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#endif
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FWD_DECLARE(IXAudio2);
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FWD_DECLARE(IXAudio2Voice);
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FWD_DECLARE(IXAudio2SourceVoice);
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FWD_DECLARE(IXAudio2SubmixVoice);
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FWD_DECLARE(IXAudio2MasteringVoice);
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FWD_DECLARE(IXAudio2EngineCallback);
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FWD_DECLARE(IXAudio2VoiceCallback);
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/**************************************************************************
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*
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* XAudio2 structures and enumerations.
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*
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**************************************************************************/
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// Used in IXAudio2::Initialize
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#ifdef _XBOX
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typedef enum XAUDIO2_XBOX_HWTHREAD_SPECIFIER
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{
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XboxThread0 = 0x01,
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XboxThread1 = 0x02,
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XboxThread2 = 0x04,
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XboxThread3 = 0x08,
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XboxThread4 = 0x10,
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XboxThread5 = 0x20,
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XAUDIO2_ANY_PROCESSOR = XboxThread4,
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XAUDIO2_DEFAULT_PROCESSOR = XAUDIO2_ANY_PROCESSOR
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} XAUDIO2_XBOX_HWTHREAD_SPECIFIER, XAUDIO2_PROCESSOR;
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#else
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typedef enum XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER
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{
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Processor1 = 0x00000001,
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Processor2 = 0x00000002,
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Processor3 = 0x00000004,
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Processor4 = 0x00000008,
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Processor5 = 0x00000010,
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Processor6 = 0x00000020,
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Processor7 = 0x00000040,
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Processor8 = 0x00000080,
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Processor9 = 0x00000100,
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Processor10 = 0x00000200,
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Processor11 = 0x00000400,
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Processor12 = 0x00000800,
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Processor13 = 0x00001000,
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Processor14 = 0x00002000,
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Processor15 = 0x00004000,
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Processor16 = 0x00008000,
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Processor17 = 0x00010000,
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Processor18 = 0x00020000,
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Processor19 = 0x00040000,
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Processor20 = 0x00080000,
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Processor21 = 0x00100000,
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Processor22 = 0x00200000,
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Processor23 = 0x00400000,
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Processor24 = 0x00800000,
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Processor25 = 0x01000000,
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Processor26 = 0x02000000,
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Processor27 = 0x04000000,
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Processor28 = 0x08000000,
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Processor29 = 0x10000000,
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Processor30 = 0x20000000,
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Processor31 = 0x40000000,
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Processor32 = 0x80000000,
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XAUDIO2_ANY_PROCESSOR = 0xffffffff,
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XAUDIO2_DEFAULT_PROCESSOR = XAUDIO2_ANY_PROCESSOR
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} XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER, XAUDIO2_PROCESSOR;
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#endif
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// Used in XAUDIO2_DEVICE_DETAILS below to describe the types of applications
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// that the user has specified each device as a default for. 0 means that the
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// device isn't the default for any role.
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typedef enum XAUDIO2_DEVICE_ROLE
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{
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NotDefaultDevice = 0x0,
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DefaultConsoleDevice = 0x1,
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DefaultMultimediaDevice = 0x2,
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DefaultCommunicationsDevice = 0x4,
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DefaultGameDevice = 0x8,
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GlobalDefaultDevice = 0xf,
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InvalidDeviceRole = ~GlobalDefaultDevice
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} XAUDIO2_DEVICE_ROLE;
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// Returned by IXAudio2::GetDeviceDetails
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typedef struct XAUDIO2_DEVICE_DETAILS
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{
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WCHAR DeviceID[256]; // String identifier for the audio device.
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WCHAR DisplayName[256]; // Friendly name suitable for display to a human.
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XAUDIO2_DEVICE_ROLE Role; // Roles that the device should be used for.
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WAVEFORMATEXTENSIBLE OutputFormat; // The device's native PCM audio output format.
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} XAUDIO2_DEVICE_DETAILS;
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// Returned by IXAudio2Voice::GetVoiceDetails
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typedef struct XAUDIO2_VOICE_DETAILS
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{
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UINT32 CreationFlags; // Flags the voice was created with.
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UINT32 InputChannels; // Channels in the voice's input audio.
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UINT32 InputSampleRate; // Sample rate of the voice's input audio.
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} XAUDIO2_VOICE_DETAILS;
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// Used in XAUDIO2_VOICE_SENDS below
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typedef struct XAUDIO2_SEND_DESCRIPTOR
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{
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UINT32 Flags; // Either 0 or XAUDIO2_SEND_USEFILTER.
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IXAudio2Voice* pOutputVoice; // This send's destination voice.
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} XAUDIO2_SEND_DESCRIPTOR;
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// Used in the voice creation functions and in IXAudio2Voice::SetOutputVoices
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typedef struct XAUDIO2_VOICE_SENDS
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{
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UINT32 SendCount; // Number of sends from this voice.
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XAUDIO2_SEND_DESCRIPTOR* pSends; // Array of SendCount send descriptors.
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} XAUDIO2_VOICE_SENDS;
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// Used in XAUDIO2_EFFECT_CHAIN below
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typedef struct XAUDIO2_EFFECT_DESCRIPTOR
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{
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IUnknown* pEffect; // Pointer to the effect object's IUnknown interface.
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BOOL InitialState; // TRUE if the effect should begin in the enabled state.
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UINT32 OutputChannels; // How many output channels the effect should produce.
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} XAUDIO2_EFFECT_DESCRIPTOR;
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// Used in the voice creation functions and in IXAudio2Voice::SetEffectChain
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typedef struct XAUDIO2_EFFECT_CHAIN
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{
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UINT32 EffectCount; // Number of effects in this voice's effect chain.
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XAUDIO2_EFFECT_DESCRIPTOR* pEffectDescriptors; // Array of effect descriptors.
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} XAUDIO2_EFFECT_CHAIN;
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// Used in XAUDIO2_FILTER_PARAMETERS below
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typedef enum XAUDIO2_FILTER_TYPE
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{
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LowPassFilter, // Attenuates frequencies above the cutoff frequency.
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BandPassFilter, // Attenuates frequencies outside a given range.
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HighPassFilter, // Attenuates frequencies below the cutoff frequency.
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NotchFilter // Attenuates frequencies inside a given range.
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} XAUDIO2_FILTER_TYPE;
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// Used in IXAudio2Voice::Set/GetFilterParameters and Set/GetOutputFilterParameters
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typedef struct XAUDIO2_FILTER_PARAMETERS
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{
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XAUDIO2_FILTER_TYPE Type; // Low-pass, band-pass or high-pass.
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float Frequency; // Radian frequency (2 * sin(pi*CutoffFrequency/SampleRate));
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// must be >= 0 and <= XAUDIO2_MAX_FILTER_FREQUENCY
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// (giving a maximum CutoffFrequency of SampleRate/6).
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float OneOverQ; // Reciprocal of the filter's quality factor Q;
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// must be > 0 and <= XAUDIO2_MAX_FILTER_ONEOVERQ.
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} XAUDIO2_FILTER_PARAMETERS;
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// Used in IXAudio2SourceVoice::SubmitSourceBuffer
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typedef struct XAUDIO2_BUFFER
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{
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UINT32 Flags; // Either 0 or XAUDIO2_END_OF_STREAM.
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UINT32 AudioBytes; // Size of the audio data buffer in bytes.
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const BYTE* pAudioData; // Pointer to the audio data buffer.
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UINT32 PlayBegin; // First sample in this buffer to be played.
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UINT32 PlayLength; // Length of the region to be played in samples,
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// or 0 to play the whole buffer.
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UINT32 LoopBegin; // First sample of the region to be looped.
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UINT32 LoopLength; // Length of the desired loop region in samples,
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// or 0 to loop the entire buffer.
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UINT32 LoopCount; // Number of times to repeat the loop region,
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// or XAUDIO2_LOOP_INFINITE to loop forever.
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void* pContext; // Context value to be passed back in callbacks.
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} XAUDIO2_BUFFER;
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// Used in IXAudio2SourceVoice::SubmitSourceBuffer when submitting XWMA data.
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// NOTE: If an XWMA sound is submitted in more than one buffer, each buffer's
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// pDecodedPacketCumulativeBytes[PacketCount-1] value must be subtracted from
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// all the entries in the next buffer's pDecodedPacketCumulativeBytes array.
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// And whether a sound is submitted in more than one buffer or not, the final
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// buffer of the sound should use the XAUDIO2_END_OF_STREAM flag, or else the
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// client must call IXAudio2SourceVoice::Discontinuity after submitting it.
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typedef struct XAUDIO2_BUFFER_WMA
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{
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const UINT32* pDecodedPacketCumulativeBytes; // Decoded packet's cumulative size array.
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// Each element is the number of bytes accumulated
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// when the corresponding XWMA packet is decoded in
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// order. The array must have PacketCount elements.
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UINT32 PacketCount; // Number of XWMA packets submitted. Must be >= 1 and
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// divide evenly into XAUDIO2_BUFFER.AudioBytes.
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} XAUDIO2_BUFFER_WMA;
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// Returned by IXAudio2SourceVoice::GetState
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typedef struct XAUDIO2_VOICE_STATE
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{
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void* pCurrentBufferContext; // The pContext value provided in the XAUDIO2_BUFFER
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// that is currently being processed, or NULL if
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// there are no buffers in the queue.
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UINT32 BuffersQueued; // Number of buffers currently queued on the voice
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// (including the one that is being processed).
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UINT64 SamplesPlayed; // Total number of samples produced by the voice since
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// it began processing the current audio stream.
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} XAUDIO2_VOICE_STATE;
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// Returned by IXAudio2::GetPerformanceData
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typedef struct XAUDIO2_PERFORMANCE_DATA
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{
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// CPU usage information
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UINT64 AudioCyclesSinceLastQuery; // CPU cycles spent on audio processing since the
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// last call to StartEngine or GetPerformanceData.
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UINT64 TotalCyclesSinceLastQuery; // Total CPU cycles elapsed since the last call
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// (only counts the CPU XAudio2 is running on).
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UINT32 MinimumCyclesPerQuantum; // Fewest CPU cycles spent processing any one
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// audio quantum since the last call.
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UINT32 MaximumCyclesPerQuantum; // Most CPU cycles spent processing any one
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// audio quantum since the last call.
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// Memory usage information
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UINT32 MemoryUsageInBytes; // Total heap space currently in use.
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// Audio latency and glitching information
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UINT32 CurrentLatencyInSamples; // Minimum delay from when a sample is read from a
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// source buffer to when it reaches the speakers.
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UINT32 GlitchesSinceEngineStarted; // Audio dropouts since the engine was started.
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// Data about XAudio2's current workload
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UINT32 ActiveSourceVoiceCount; // Source voices currently playing.
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UINT32 TotalSourceVoiceCount; // Source voices currently existing.
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UINT32 ActiveSubmixVoiceCount; // Submix voices currently playing/existing.
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UINT32 ActiveResamplerCount; // Resample xAPOs currently active.
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UINT32 ActiveMatrixMixCount; // MatrixMix xAPOs currently active.
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// Usage of the hardware XMA decoder (Xbox 360 only)
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UINT32 ActiveXmaSourceVoices; // Number of source voices decoding XMA data.
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UINT32 ActiveXmaStreams; // A voice can use more than one XMA stream.
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} XAUDIO2_PERFORMANCE_DATA;
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// Used in IXAudio2::SetDebugConfiguration
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typedef struct XAUDIO2_DEBUG_CONFIGURATION
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{
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UINT32 TraceMask; // Bitmap of enabled debug message types.
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UINT32 BreakMask; // Message types that will break into the debugger.
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BOOL LogThreadID; // Whether to log the thread ID with each message.
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BOOL LogFileline; // Whether to log the source file and line number.
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BOOL LogFunctionName; // Whether to log the function name.
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BOOL LogTiming; // Whether to log message timestamps.
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} XAUDIO2_DEBUG_CONFIGURATION;
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// Values for the TraceMask and BreakMask bitmaps. Only ERRORS and WARNINGS
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// are valid in BreakMask. WARNINGS implies ERRORS, DETAIL implies INFO, and
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// FUNC_CALLS implies API_CALLS. By default, TraceMask is ERRORS and WARNINGS
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// and all the other settings are zero.
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#define XAUDIO2_LOG_ERRORS 0x0001 // For handled errors with serious effects.
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#define XAUDIO2_LOG_WARNINGS 0x0002 // For handled errors that may be recoverable.
|
|
#define XAUDIO2_LOG_INFO 0x0004 // Informational chit-chat (e.g. state changes).
|
|
#define XAUDIO2_LOG_DETAIL 0x0008 // More detailed chit-chat.
|
|
#define XAUDIO2_LOG_API_CALLS 0x0010 // Public API function entries and exits.
|
|
#define XAUDIO2_LOG_FUNC_CALLS 0x0020 // Internal function entries and exits.
|
|
#define XAUDIO2_LOG_TIMING 0x0040 // Delays detected and other timing data.
|
|
#define XAUDIO2_LOG_LOCKS 0x0080 // Usage of critical sections and mutexes.
|
|
#define XAUDIO2_LOG_MEMORY 0x0100 // Memory heap usage information.
|
|
#define XAUDIO2_LOG_STREAMING 0x1000 // Audio streaming information.
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2: Top-level XAudio2 COM interface.
|
|
*
|
|
**************************************************************************/
|
|
|
|
// Use default arguments if compiling as C++
|
|
#ifdef __cplusplus
|
|
#define X2DEFAULT(x) =x
|
|
#else
|
|
#define X2DEFAULT(x)
|
|
#endif
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2
|
|
DECLARE_INTERFACE_(IXAudio2, IUnknown)
|
|
{
|
|
// NAME: IXAudio2::QueryInterface
|
|
// DESCRIPTION: Queries for a given COM interface on the XAudio2 object.
|
|
// Only IID_IUnknown and IID_IXAudio2 are supported.
|
|
//
|
|
// ARGUMENTS:
|
|
// riid - IID of the interface to be obtained.
|
|
// ppvInterface - Returns a pointer to the requested interface.
|
|
//
|
|
STDMETHOD(QueryInterface) (THIS_ REFIID riid, __deref_out void** ppvInterface) PURE;
|
|
|
|
// NAME: IXAudio2::AddRef
|
|
// DESCRIPTION: Adds a reference to the XAudio2 object.
|
|
//
|
|
STDMETHOD_(ULONG, AddRef) (THIS) PURE;
|
|
|
|
// NAME: IXAudio2::Release
|
|
// DESCRIPTION: Releases a reference to the XAudio2 object.
|
|
//
|
|
STDMETHOD_(ULONG, Release) (THIS) PURE;
|
|
|
|
// NAME: IXAudio2::GetDeviceCount
|
|
// DESCRIPTION: Returns the number of audio output devices available.
|
|
//
|
|
// ARGUMENTS:
|
|
// pCount - Returns the device count.
|
|
//
|
|
STDMETHOD(GetDeviceCount) (THIS_ __out UINT32* pCount) PURE;
|
|
|
|
// NAME: IXAudio2::GetDeviceDetails
|
|
// DESCRIPTION: Returns information about the device with the given index.
|
|
//
|
|
// ARGUMENTS:
|
|
// Index - Index of the device to be queried.
|
|
// pDeviceDetails - Returns the device details.
|
|
//
|
|
STDMETHOD(GetDeviceDetails) (THIS_ UINT32 Index, __out XAUDIO2_DEVICE_DETAILS* pDeviceDetails) PURE;
|
|
|
|
// NAME: IXAudio2::Initialize
|
|
// DESCRIPTION: Sets global XAudio2 parameters and prepares it for use.
|
|
//
|
|
// ARGUMENTS:
|
|
// Flags - Flags specifying the XAudio2 object's behavior. Currently unused.
|
|
// XAudio2Processor - An XAUDIO2_PROCESSOR enumeration value that specifies
|
|
// the hardware thread (Xbox) or processor (Windows) that XAudio2 will use.
|
|
// The enumeration values are platform-specific; platform-independent code
|
|
// can use XAUDIO2_DEFAULT_PROCESSOR to use the default on each platform.
|
|
//
|
|
STDMETHOD(Initialize) (THIS_ UINT32 Flags X2DEFAULT(0),
|
|
XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR)) PURE;
|
|
|
|
// NAME: IXAudio2::RegisterForCallbacks
|
|
// DESCRIPTION: Adds a new client to receive XAudio2's engine callbacks.
|
|
//
|
|
// ARGUMENTS:
|
|
// pCallback - Callback interface to be called during each processing pass.
|
|
//
|
|
STDMETHOD(RegisterForCallbacks) (__in IXAudio2EngineCallback* pCallback) PURE;
|
|
|
|
// NAME: IXAudio2::UnregisterForCallbacks
|
|
// DESCRIPTION: Removes an existing receiver of XAudio2 engine callbacks.
|
|
//
|
|
// ARGUMENTS:
|
|
// pCallback - Previously registered callback interface to be removed.
|
|
//
|
|
STDMETHOD_(void, UnregisterForCallbacks) (__in IXAudio2EngineCallback* pCallback) PURE;
|
|
|
|
// NAME: IXAudio2::CreateSourceVoice
|
|
// DESCRIPTION: Creates and configures a source voice.
|
|
//
|
|
// ARGUMENTS:
|
|
// ppSourceVoice - Returns the new object's IXAudio2SourceVoice interface.
|
|
// pSourceFormat - Format of the audio that will be fed to the voice.
|
|
// Flags - XAUDIO2_VOICE flags specifying the source voice's behavior.
|
|
// MaxFrequencyRatio - Maximum SetFrequencyRatio argument to be allowed.
|
|
// pCallback - Optional pointer to a client-provided callback interface.
|
|
// pSendList - Optional list of voices this voice should send audio to.
|
|
// pEffectChain - Optional list of effects to apply to the audio data.
|
|
//
|
|
STDMETHOD(CreateSourceVoice) (THIS_ __deref_out IXAudio2SourceVoice** ppSourceVoice,
|
|
__in const WAVEFORMATEX* pSourceFormat,
|
|
UINT32 Flags X2DEFAULT(0),
|
|
float MaxFrequencyRatio X2DEFAULT(XAUDIO2_DEFAULT_FREQ_RATIO),
|
|
__in_opt IXAudio2VoiceCallback* pCallback X2DEFAULT(NULL),
|
|
__in_opt const XAUDIO2_VOICE_SENDS* pSendList X2DEFAULT(NULL),
|
|
__in_opt const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL)) PURE;
|
|
|
|
// NAME: IXAudio2::CreateSubmixVoice
|
|
// DESCRIPTION: Creates and configures a submix voice.
|
|
//
|
|
// ARGUMENTS:
|
|
// ppSubmixVoice - Returns the new object's IXAudio2SubmixVoice interface.
|
|
// InputChannels - Number of channels in this voice's input audio data.
|
|
// InputSampleRate - Sample rate of this voice's input audio data.
|
|
// Flags - XAUDIO2_VOICE flags specifying the submix voice's behavior.
|
|
// ProcessingStage - Arbitrary number that determines the processing order.
|
|
// pSendList - Optional list of voices this voice should send audio to.
|
|
// pEffectChain - Optional list of effects to apply to the audio data.
|
|
//
|
|
STDMETHOD(CreateSubmixVoice) (THIS_ __deref_out IXAudio2SubmixVoice** ppSubmixVoice,
|
|
UINT32 InputChannels, UINT32 InputSampleRate,
|
|
UINT32 Flags X2DEFAULT(0), UINT32 ProcessingStage X2DEFAULT(0),
|
|
__in_opt const XAUDIO2_VOICE_SENDS* pSendList X2DEFAULT(NULL),
|
|
__in_opt const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL)) PURE;
|
|
|
|
|
|
// NAME: IXAudio2::CreateMasteringVoice
|
|
// DESCRIPTION: Creates and configures a mastering voice.
|
|
//
|
|
// ARGUMENTS:
|
|
// ppMasteringVoice - Returns the new object's IXAudio2MasteringVoice interface.
|
|
// InputChannels - Number of channels in this voice's input audio data.
|
|
// InputSampleRate - Sample rate of this voice's input audio data.
|
|
// Flags - XAUDIO2_VOICE flags specifying the mastering voice's behavior.
|
|
// DeviceIndex - Identifier of the device to receive the output audio.
|
|
// pEffectChain - Optional list of effects to apply to the audio data.
|
|
//
|
|
STDMETHOD(CreateMasteringVoice) (THIS_ __deref_out IXAudio2MasteringVoice** ppMasteringVoice,
|
|
UINT32 InputChannels X2DEFAULT(XAUDIO2_DEFAULT_CHANNELS),
|
|
UINT32 InputSampleRate X2DEFAULT(XAUDIO2_DEFAULT_SAMPLERATE),
|
|
UINT32 Flags X2DEFAULT(0), UINT32 DeviceIndex X2DEFAULT(0),
|
|
__in_opt const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL)) PURE;
|
|
|
|
// NAME: IXAudio2::StartEngine
|
|
// DESCRIPTION: Creates and starts the audio processing thread.
|
|
//
|
|
STDMETHOD(StartEngine) (THIS) PURE;
|
|
|
|
// NAME: IXAudio2::StopEngine
|
|
// DESCRIPTION: Stops and destroys the audio processing thread.
|
|
//
|
|
STDMETHOD_(void, StopEngine) (THIS) PURE;
|
|
|
|
// NAME: IXAudio2::CommitChanges
|
|
// DESCRIPTION: Atomically applies a set of operations previously tagged
|
|
// with a given identifier.
|
|
//
|
|
// ARGUMENTS:
|
|
// OperationSet - Identifier of the set of operations to be applied.
|
|
//
|
|
STDMETHOD(CommitChanges) (THIS_ UINT32 OperationSet) PURE;
|
|
|
|
// NAME: IXAudio2::GetPerformanceData
|
|
// DESCRIPTION: Returns current resource usage details: memory, CPU, etc.
|
|
//
|
|
// ARGUMENTS:
|
|
// pPerfData - Returns the performance data structure.
|
|
//
|
|
STDMETHOD_(void, GetPerformanceData) (THIS_ __out XAUDIO2_PERFORMANCE_DATA* pPerfData) PURE;
|
|
|
|
// NAME: IXAudio2::SetDebugConfiguration
|
|
// DESCRIPTION: Configures XAudio2's debug output (in debug builds only).
|
|
//
|
|
// ARGUMENTS:
|
|
// pDebugConfiguration - Structure describing the debug output behavior.
|
|
// pReserved - Optional parameter; must be NULL.
|
|
//
|
|
STDMETHOD_(void, SetDebugConfiguration) (THIS_ __in_opt const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
|
|
__in_opt __reserved void* pReserved X2DEFAULT(NULL)) PURE;
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2Voice: Base voice management interface.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2Voice
|
|
DECLARE_INTERFACE(IXAudio2Voice)
|
|
{
|
|
// These methods are declared in a macro so that the same declarations
|
|
// can be used in the derived voice types (IXAudio2SourceVoice, etc).
|
|
|
|
#define Declare_IXAudio2Voice_Methods() \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetVoiceDetails
|
|
// DESCRIPTION: Returns the basic characteristics of this voice.
|
|
//
|
|
// ARGUMENTS:
|
|
// pVoiceDetails - Returns the voice's details.
|
|
*/\
|
|
STDMETHOD_(void, GetVoiceDetails) (THIS_ __out XAUDIO2_VOICE_DETAILS* pVoiceDetails) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetOutputVoices
|
|
// DESCRIPTION: Replaces the set of submix/mastering voices that receive
|
|
// this voice's output.
|
|
//
|
|
// ARGUMENTS:
|
|
// pSendList - Optional list of voices this voice should send audio to.
|
|
*/\
|
|
STDMETHOD(SetOutputVoices) (THIS_ __in_opt const XAUDIO2_VOICE_SENDS* pSendList) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetEffectChain
|
|
// DESCRIPTION: Replaces this voice's current effect chain with a new one.
|
|
//
|
|
// ARGUMENTS:
|
|
// pEffectChain - Structure describing the new effect chain to be used.
|
|
*/\
|
|
STDMETHOD(SetEffectChain) (THIS_ __in_opt const XAUDIO2_EFFECT_CHAIN* pEffectChain) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::EnableEffect
|
|
// DESCRIPTION: Enables an effect in this voice's effect chain.
|
|
//
|
|
// ARGUMENTS:
|
|
// EffectIndex - Index of an effect within this voice's effect chain.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(EnableEffect) (THIS_ UINT32 EffectIndex, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::DisableEffect
|
|
// DESCRIPTION: Disables an effect in this voice's effect chain.
|
|
//
|
|
// ARGUMENTS:
|
|
// EffectIndex - Index of an effect within this voice's effect chain.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(DisableEffect) (THIS_ UINT32 EffectIndex, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetEffectState
|
|
// DESCRIPTION: Returns the running state of an effect.
|
|
//
|
|
// ARGUMENTS:
|
|
// EffectIndex - Index of an effect within this voice's effect chain.
|
|
// pEnabled - Returns the enabled/disabled state of the given effect.
|
|
*/\
|
|
STDMETHOD_(void, GetEffectState) (THIS_ UINT32 EffectIndex, __out BOOL* pEnabled) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetEffectParameters
|
|
// DESCRIPTION: Sets effect-specific parameters.
|
|
//
|
|
// REMARKS: Unlike IXAPOParameters::SetParameters, this method may
|
|
// be called from any thread. XAudio2 implements
|
|
// appropriate synchronization to copy the parameters to the
|
|
// realtime audio processing thread.
|
|
//
|
|
// ARGUMENTS:
|
|
// EffectIndex - Index of an effect within this voice's effect chain.
|
|
// pParameters - Pointer to an effect-specific parameters block.
|
|
// ParametersByteSize - Size of the pParameters array in bytes.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(SetEffectParameters) (THIS_ UINT32 EffectIndex, \
|
|
__in_bcount(ParametersByteSize) const void* pParameters, \
|
|
UINT32 ParametersByteSize, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetEffectParameters
|
|
// DESCRIPTION: Obtains the current effect-specific parameters.
|
|
//
|
|
// ARGUMENTS:
|
|
// EffectIndex - Index of an effect within this voice's effect chain.
|
|
// pParameters - Returns the current values of the effect-specific parameters.
|
|
// ParametersByteSize - Size of the pParameters array in bytes.
|
|
*/\
|
|
STDMETHOD(GetEffectParameters) (THIS_ UINT32 EffectIndex, \
|
|
__out_bcount(ParametersByteSize) void* pParameters, \
|
|
UINT32 ParametersByteSize) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetFilterParameters
|
|
// DESCRIPTION: Sets this voice's filter parameters.
|
|
//
|
|
// ARGUMENTS:
|
|
// pParameters - Pointer to the filter's parameter structure.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(SetFilterParameters) (THIS_ __in const XAUDIO2_FILTER_PARAMETERS* pParameters, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetFilterParameters
|
|
// DESCRIPTION: Returns this voice's current filter parameters.
|
|
//
|
|
// ARGUMENTS:
|
|
// pParameters - Returns the filter parameters.
|
|
*/\
|
|
STDMETHOD_(void, GetFilterParameters) (THIS_ __out XAUDIO2_FILTER_PARAMETERS* pParameters) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetOutputFilterParameters
|
|
// DESCRIPTION: Sets the filter parameters on one of this voice's sends.
|
|
//
|
|
// ARGUMENTS:
|
|
// pDestinationVoice - Destination voice of the send whose filter parameters will be set.
|
|
// pParameters - Pointer to the filter's parameter structure.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(SetOutputFilterParameters) (THIS_ __in_opt IXAudio2Voice* pDestinationVoice, \
|
|
__in const XAUDIO2_FILTER_PARAMETERS* pParameters, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetOutputFilterParameters
|
|
// DESCRIPTION: Returns the filter parameters from one of this voice's sends.
|
|
//
|
|
// ARGUMENTS:
|
|
// pDestinationVoice - Destination voice of the send whose filter parameters will be read.
|
|
// pParameters - Returns the filter parameters.
|
|
*/\
|
|
STDMETHOD_(void, GetOutputFilterParameters) (THIS_ __in_opt IXAudio2Voice* pDestinationVoice, \
|
|
__out XAUDIO2_FILTER_PARAMETERS* pParameters) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetVolume
|
|
// DESCRIPTION: Sets this voice's overall volume level.
|
|
//
|
|
// ARGUMENTS:
|
|
// Volume - New overall volume level to be used, as an amplitude factor.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(SetVolume) (THIS_ float Volume, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetVolume
|
|
// DESCRIPTION: Obtains this voice's current overall volume level.
|
|
//
|
|
// ARGUMENTS:
|
|
// pVolume: Returns the voice's current overall volume level.
|
|
*/\
|
|
STDMETHOD_(void, GetVolume) (THIS_ __out float* pVolume) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetChannelVolumes
|
|
// DESCRIPTION: Sets this voice's per-channel volume levels.
|
|
//
|
|
// ARGUMENTS:
|
|
// Channels - Used to confirm the voice's channel count.
|
|
// pVolumes - Array of per-channel volume levels to be used.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(SetChannelVolumes) (THIS_ UINT32 Channels, __in_ecount(Channels) const float* pVolumes, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetChannelVolumes
|
|
// DESCRIPTION: Returns this voice's current per-channel volume levels.
|
|
//
|
|
// ARGUMENTS:
|
|
// Channels - Used to confirm the voice's channel count.
|
|
// pVolumes - Returns an array of the current per-channel volume levels.
|
|
*/\
|
|
STDMETHOD_(void, GetChannelVolumes) (THIS_ UINT32 Channels, __out_ecount(Channels) float* pVolumes) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::SetOutputMatrix
|
|
// DESCRIPTION: Sets the volume levels used to mix from each channel of this
|
|
// voice's output audio to each channel of a given destination
|
|
// voice's input audio.
|
|
//
|
|
// ARGUMENTS:
|
|
// pDestinationVoice - The destination voice whose mix matrix to change.
|
|
// SourceChannels - Used to confirm this voice's output channel count
|
|
// (the number of channels produced by the last effect in the chain).
|
|
// DestinationChannels - Confirms the destination voice's input channels.
|
|
// pLevelMatrix - Array of [SourceChannels * DestinationChannels] send
|
|
// levels. The level used to send from source channel S to destination
|
|
// channel D should be in pLevelMatrix[S + SourceChannels * D].
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
*/\
|
|
STDMETHOD(SetOutputMatrix) (THIS_ __in_opt IXAudio2Voice* pDestinationVoice, \
|
|
UINT32 SourceChannels, UINT32 DestinationChannels, \
|
|
__in_ecount(SourceChannels * DestinationChannels) const float* pLevelMatrix, \
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::GetOutputMatrix
|
|
// DESCRIPTION: Obtains the volume levels used to send each channel of this
|
|
// voice's output audio to each channel of a given destination
|
|
// voice's input audio.
|
|
//
|
|
// ARGUMENTS:
|
|
// pDestinationVoice - The destination voice whose mix matrix to obtain.
|
|
// SourceChannels - Used to confirm this voice's output channel count
|
|
// (the number of channels produced by the last effect in the chain).
|
|
// DestinationChannels - Confirms the destination voice's input channels.
|
|
// pLevelMatrix - Array of send levels, as above.
|
|
*/\
|
|
STDMETHOD_(void, GetOutputMatrix) (THIS_ __in_opt IXAudio2Voice* pDestinationVoice, \
|
|
UINT32 SourceChannels, UINT32 DestinationChannels, \
|
|
__out_ecount(SourceChannels * DestinationChannels) float* pLevelMatrix) PURE; \
|
|
\
|
|
/* NAME: IXAudio2Voice::DestroyVoice
|
|
// DESCRIPTION: Destroys this voice, stopping it if necessary and removing
|
|
// it from the XAudio2 graph.
|
|
*/\
|
|
STDMETHOD_(void, DestroyVoice) (THIS) PURE
|
|
|
|
Declare_IXAudio2Voice_Methods();
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2SourceVoice: Source voice management interface.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2SourceVoice
|
|
DECLARE_INTERFACE_(IXAudio2SourceVoice, IXAudio2Voice)
|
|
{
|
|
// Methods from IXAudio2Voice base interface
|
|
Declare_IXAudio2Voice_Methods();
|
|
|
|
// NAME: IXAudio2SourceVoice::Start
|
|
// DESCRIPTION: Makes this voice start consuming and processing audio.
|
|
//
|
|
// ARGUMENTS:
|
|
// Flags - Flags controlling how the voice should be started.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
//
|
|
STDMETHOD(Start) (THIS_ UINT32 Flags X2DEFAULT(0), UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::Stop
|
|
// DESCRIPTION: Makes this voice stop consuming audio.
|
|
//
|
|
// ARGUMENTS:
|
|
// Flags - Flags controlling how the voice should be stopped.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
//
|
|
STDMETHOD(Stop) (THIS_ UINT32 Flags X2DEFAULT(0), UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::SubmitSourceBuffer
|
|
// DESCRIPTION: Adds a new audio buffer to this voice's input queue.
|
|
//
|
|
// ARGUMENTS:
|
|
// pBuffer - Pointer to the buffer structure to be queued.
|
|
// pBufferWMA - Additional structure used only when submitting XWMA data.
|
|
//
|
|
STDMETHOD(SubmitSourceBuffer) (THIS_ __in const XAUDIO2_BUFFER* pBuffer, __in_opt const XAUDIO2_BUFFER_WMA* pBufferWMA X2DEFAULT(NULL)) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::FlushSourceBuffers
|
|
// DESCRIPTION: Removes all pending audio buffers from this voice's queue.
|
|
//
|
|
STDMETHOD(FlushSourceBuffers) (THIS) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::Discontinuity
|
|
// DESCRIPTION: Notifies the voice of an intentional break in the stream of
|
|
// audio buffers (e.g. the end of a sound), to prevent XAudio2
|
|
// from interpreting an empty buffer queue as a glitch.
|
|
//
|
|
STDMETHOD(Discontinuity) (THIS) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::ExitLoop
|
|
// DESCRIPTION: Breaks out of the current loop when its end is reached.
|
|
//
|
|
// ARGUMENTS:
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
//
|
|
STDMETHOD(ExitLoop) (THIS_ UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::GetState
|
|
// DESCRIPTION: Returns the number of buffers currently queued on this voice,
|
|
// the pContext value associated with the currently processing
|
|
// buffer (if any), and other voice state information.
|
|
//
|
|
// ARGUMENTS:
|
|
// pVoiceState - Returns the state information.
|
|
//
|
|
STDMETHOD_(void, GetState) (THIS_ __out XAUDIO2_VOICE_STATE* pVoiceState) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::SetFrequencyRatio
|
|
// DESCRIPTION: Sets this voice's frequency adjustment, i.e. its pitch.
|
|
//
|
|
// ARGUMENTS:
|
|
// Ratio - Frequency change, expressed as source frequency / target frequency.
|
|
// OperationSet - Used to identify this call as part of a deferred batch.
|
|
//
|
|
STDMETHOD(SetFrequencyRatio) (THIS_ float Ratio,
|
|
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::GetFrequencyRatio
|
|
// DESCRIPTION: Returns this voice's current frequency adjustment ratio.
|
|
//
|
|
// ARGUMENTS:
|
|
// pRatio - Returns the frequency adjustment.
|
|
//
|
|
STDMETHOD_(void, GetFrequencyRatio) (THIS_ __out float* pRatio) PURE;
|
|
|
|
// NAME: IXAudio2SourceVoice::SetSourceSampleRate
|
|
// DESCRIPTION: Reconfigures this voice to treat its source data as being
|
|
// at a different sample rate than the original one specified
|
|
// in CreateSourceVoice's pSourceFormat argument.
|
|
//
|
|
// ARGUMENTS:
|
|
// UINT32 - The intended sample rate of further submitted source data.
|
|
//
|
|
STDMETHOD(SetSourceSampleRate) (THIS_ UINT32 NewSourceSampleRate) PURE;
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2SubmixVoice: Submixing voice management interface.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2SubmixVoice
|
|
DECLARE_INTERFACE_(IXAudio2SubmixVoice, IXAudio2Voice)
|
|
{
|
|
// Methods from IXAudio2Voice base interface
|
|
Declare_IXAudio2Voice_Methods();
|
|
|
|
// There are currently no methods specific to submix voices.
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2MasteringVoice: Mastering voice management interface.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2MasteringVoice
|
|
DECLARE_INTERFACE_(IXAudio2MasteringVoice, IXAudio2Voice)
|
|
{
|
|
// Methods from IXAudio2Voice base interface
|
|
Declare_IXAudio2Voice_Methods();
|
|
|
|
// There are currently no methods specific to mastering voices.
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2EngineCallback: Client notification interface for engine events.
|
|
*
|
|
* REMARKS: Contains methods to notify the client when certain events happen
|
|
* in the XAudio2 engine. This interface should be implemented by
|
|
* the client. XAudio2 will call these methods via the interface
|
|
* pointer provided by the client when it calls XAudio2Create or
|
|
* IXAudio2::Initialize.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2EngineCallback
|
|
DECLARE_INTERFACE(IXAudio2EngineCallback)
|
|
{
|
|
// Called by XAudio2 just before an audio processing pass begins.
|
|
STDMETHOD_(void, OnProcessingPassStart) (THIS) PURE;
|
|
|
|
// Called just after an audio processing pass ends.
|
|
STDMETHOD_(void, OnProcessingPassEnd) (THIS) PURE;
|
|
|
|
// Called in the event of a critical system error which requires XAudio2
|
|
// to be closed down and restarted. The error code is given in Error.
|
|
STDMETHOD_(void, OnCriticalError) (THIS_ HRESULT Error) PURE;
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* IXAudio2VoiceCallback: Client notification interface for voice events.
|
|
*
|
|
* REMARKS: Contains methods to notify the client when certain events happen
|
|
* in an XAudio2 voice. This interface should be implemented by the
|
|
* client. XAudio2 will call these methods via an interface pointer
|
|
* provided by the client in the IXAudio2::CreateSourceVoice call.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#undef INTERFACE
|
|
#define INTERFACE IXAudio2VoiceCallback
|
|
DECLARE_INTERFACE(IXAudio2VoiceCallback)
|
|
{
|
|
// Called just before this voice's processing pass begins.
|
|
STDMETHOD_(void, OnVoiceProcessingPassStart) (THIS_ UINT32 BytesRequired) PURE;
|
|
|
|
// Called just after this voice's processing pass ends.
|
|
STDMETHOD_(void, OnVoiceProcessingPassEnd) (THIS) PURE;
|
|
|
|
// Called when this voice has just finished playing a buffer stream
|
|
// (as marked with the XAUDIO2_END_OF_STREAM flag on the last buffer).
|
|
STDMETHOD_(void, OnStreamEnd) (THIS) PURE;
|
|
|
|
// Called when this voice is about to start processing a new buffer.
|
|
STDMETHOD_(void, OnBufferStart) (THIS_ void* pBufferContext) PURE;
|
|
|
|
// Called when this voice has just finished processing a buffer.
|
|
// The buffer can now be reused or destroyed.
|
|
STDMETHOD_(void, OnBufferEnd) (THIS_ void* pBufferContext) PURE;
|
|
|
|
// Called when this voice has just reached the end position of a loop.
|
|
STDMETHOD_(void, OnLoopEnd) (THIS_ void* pBufferContext) PURE;
|
|
|
|
// Called in the event of a critical error during voice processing,
|
|
// such as a failing xAPO or an error from the hardware XMA decoder.
|
|
// The voice may have to be destroyed and re-created to recover from
|
|
// the error. The callback arguments report which buffer was being
|
|
// processed when the error occurred, and its HRESULT code.
|
|
STDMETHOD_(void, OnVoiceError) (THIS_ void* pBufferContext, HRESULT Error) PURE;
|
|
};
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* Macros to make it easier to use the XAudio2 COM interfaces in C code.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#ifndef __cplusplus
|
|
|
|
// IXAudio2
|
|
#define IXAudio2_QueryInterface(This,riid,ppvInterface) ((This)->lpVtbl->QueryInterface(This,riid,ppvInterface))
|
|
#define IXAudio2_AddRef(This) ((This)->lpVtbl->AddRef(This))
|
|
#define IXAudio2_Release(This) ((This)->lpVtbl->Release(This))
|
|
#define IXAudio2_GetDeviceCount(This,puCount) ((This)->lpVtbl->GetDeviceCount(This,puCount))
|
|
#define IXAudio2_GetDeviceDetails(This,Index,pDeviceDetails) ((This)->lpVtbl->GetDeviceDetails(This,Index,pDeviceDetails))
|
|
#define IXAudio2_Initialize(This,Flags,XAudio2Processor) ((This)->lpVtbl->Initialize(This,Flags,XAudio2Processor))
|
|
#define IXAudio2_CreateSourceVoice(This,ppSourceVoice,pSourceFormat,Flags,MaxFrequencyRatio,pCallback,pSendList,pEffectChain) ((This)->lpVtbl->CreateSourceVoice(This,ppSourceVoice,pSourceFormat,Flags,MaxFrequencyRatio,pCallback,pSendList,pEffectChain))
|
|
#define IXAudio2_CreateSubmixVoice(This,ppSubmixVoice,InputChannels,InputSampleRate,Flags,ProcessingStage,pSendList,pEffectChain) ((This)->lpVtbl->CreateSubmixVoice(This,ppSubmixVoice,InputChannels,InputSampleRate,Flags,ProcessingStage,pSendList,pEffectChain))
|
|
#define IXAudio2_CreateMasteringVoice(This,ppMasteringVoice,InputChannels,InputSampleRate,Flags,DeviceIndex,pEffectChain) ((This)->lpVtbl->CreateMasteringVoice(This,ppMasteringVoice,InputChannels,InputSampleRate,Flags,DeviceIndex,pEffectChain))
|
|
#define IXAudio2_StartEngine(This) ((This)->lpVtbl->StartEngine(This))
|
|
#define IXAudio2_StopEngine(This) ((This)->lpVtbl->StopEngine(This))
|
|
#define IXAudio2_CommitChanges(This,OperationSet) ((This)->lpVtbl->CommitChanges(This,OperationSet))
|
|
#define IXAudio2_GetPerformanceData(This,pPerfData) ((This)->lpVtbl->GetPerformanceData(This,pPerfData))
|
|
#define IXAudio2_SetDebugConfiguration(This,pDebugConfiguration,pReserved) ((This)->lpVtbl->SetDebugConfiguration(This,pDebugConfiguration,pReserved))
|
|
|
|
// IXAudio2Voice
|
|
#define IXAudio2Voice_GetVoiceDetails(This,pVoiceDetails) ((This)->lpVtbl->GetVoiceDetails(This,pVoiceDetails))
|
|
#define IXAudio2Voice_SetOutputVoices(This,pSendList) ((This)->lpVtbl->SetOutputVoices(This,pSendList))
|
|
#define IXAudio2Voice_SetEffectChain(This,pEffectChain) ((This)->lpVtbl->SetEffectChain(This,pEffectChain))
|
|
#define IXAudio2Voice_EnableEffect(This,EffectIndex,OperationSet) ((This)->lpVtbl->EnableEffect(This,EffectIndex,OperationSet))
|
|
#define IXAudio2Voice_DisableEffect(This,EffectIndex,OperationSet) ((This)->lpVtbl->DisableEffect(This,EffectIndex,OperationSet))
|
|
#define IXAudio2Voice_GetEffectState(This,EffectIndex,pEnabled) ((This)->lpVtbl->GetEffectState(This,EffectIndex,pEnabled))
|
|
#define IXAudio2Voice_SetEffectParameters(This,EffectIndex,pParameters,ParametersByteSize, OperationSet) ((This)->lpVtbl->SetEffectParameters(This,EffectIndex,pParameters,ParametersByteSize,OperationSet))
|
|
#define IXAudio2Voice_GetEffectParameters(This,EffectIndex,pParameters,ParametersByteSize) ((This)->lpVtbl->GetEffectParameters(This,EffectIndex,pParameters,ParametersByteSize))
|
|
#define IXAudio2Voice_SetFilterParameters(This,pParameters,OperationSet) ((This)->lpVtbl->SetFilterParameters(This,pParameters,OperationSet))
|
|
#define IXAudio2Voice_GetFilterParameters(This,pParameters) ((This)->lpVtbl->GetFilterParameters(This,pParameters))
|
|
#define IXAudio2Voice_SetOutputFilterParameters(This,pDestinationVoice,pParameters,OperationSet) ((This)->lpVtbl->SetOutputFilterParameters(This,pDestinationVoice,pParameters,OperationSet))
|
|
#define IXAudio2Voice_GetOutputFilterParameters(This,pDestinationVoice,pParameters) ((This)->lpVtbl->GetOutputFilterParameters(This,pDestinationVoice,pParameters))
|
|
#define IXAudio2Voice_SetVolume(This,Volume,OperationSet) ((This)->lpVtbl->SetVolume(This,Volume,OperationSet))
|
|
#define IXAudio2Voice_GetVolume(This,pVolume) ((This)->lpVtbl->GetVolume(This,pVolume))
|
|
#define IXAudio2Voice_SetChannelVolumes(This,Channels,pVolumes,OperationSet) ((This)->lpVtbl->SetChannelVolumes(This,Channels,pVolumes,OperationSet))
|
|
#define IXAudio2Voice_GetChannelVolumes(This,Channels,pVolumes) ((This)->lpVtbl->GetChannelVolumes(This,Channels,pVolumes))
|
|
#define IXAudio2Voice_SetOutputMatrix(This,pDestinationVoice,SourceChannels,DestinationChannels,pLevelMatrix,OperationSet) ((This)->lpVtbl->SetOutputMatrix(This,pDestinationVoice,SourceChannels,DestinationChannels,pLevelMatrix,OperationSet))
|
|
#define IXAudio2Voice_GetOutputMatrix(This,pDestinationVoice,SourceChannels,DestinationChannels,pLevelMatrix) ((This)->lpVtbl->GetOutputMatrix(This,pDestinationVoice,SourceChannels,DestinationChannels,pLevelMatrix))
|
|
#define IXAudio2Voice_DestroyVoice(This) ((This)->lpVtbl->DestroyVoice(This))
|
|
|
|
// IXAudio2SourceVoice
|
|
#define IXAudio2SourceVoice_GetVoiceDetails IXAudio2Voice_GetVoiceDetails
|
|
#define IXAudio2SourceVoice_SetOutputVoices IXAudio2Voice_SetOutputVoices
|
|
#define IXAudio2SourceVoice_SetEffectChain IXAudio2Voice_SetEffectChain
|
|
#define IXAudio2SourceVoice_EnableEffect IXAudio2Voice_EnableEffect
|
|
#define IXAudio2SourceVoice_DisableEffect IXAudio2Voice_DisableEffect
|
|
#define IXAudio2SourceVoice_GetEffectState IXAudio2Voice_GetEffectState
|
|
#define IXAudio2SourceVoice_SetEffectParameters IXAudio2Voice_SetEffectParameters
|
|
#define IXAudio2SourceVoice_GetEffectParameters IXAudio2Voice_GetEffectParameters
|
|
#define IXAudio2SourceVoice_SetFilterParameters IXAudio2Voice_SetFilterParameters
|
|
#define IXAudio2SourceVoice_GetFilterParameters IXAudio2Voice_GetFilterParameters
|
|
#define IXAudio2SourceVoice_SetOutputFilterParameters IXAudio2Voice_SetOutputFilterParameters
|
|
#define IXAudio2SourceVoice_GetOutputFilterParameters IXAudio2Voice_GetOutputFilterParameters
|
|
#define IXAudio2SourceVoice_SetVolume IXAudio2Voice_SetVolume
|
|
#define IXAudio2SourceVoice_GetVolume IXAudio2Voice_GetVolume
|
|
#define IXAudio2SourceVoice_SetChannelVolumes IXAudio2Voice_SetChannelVolumes
|
|
#define IXAudio2SourceVoice_GetChannelVolumes IXAudio2Voice_GetChannelVolumes
|
|
#define IXAudio2SourceVoice_SetOutputMatrix IXAudio2Voice_SetOutputMatrix
|
|
#define IXAudio2SourceVoice_GetOutputMatrix IXAudio2Voice_GetOutputMatrix
|
|
#define IXAudio2SourceVoice_DestroyVoice IXAudio2Voice_DestroyVoice
|
|
#define IXAudio2SourceVoice_Start(This,Flags,OperationSet) ((This)->lpVtbl->Start(This,Flags,OperationSet))
|
|
#define IXAudio2SourceVoice_Stop(This,Flags,OperationSet) ((This)->lpVtbl->Stop(This,Flags,OperationSet))
|
|
#define IXAudio2SourceVoice_SubmitSourceBuffer(This,pBuffer,pBufferWMA) ((This)->lpVtbl->SubmitSourceBuffer(This,pBuffer,pBufferWMA))
|
|
#define IXAudio2SourceVoice_FlushSourceBuffers(This) ((This)->lpVtbl->FlushSourceBuffers(This))
|
|
#define IXAudio2SourceVoice_Discontinuity(This) ((This)->lpVtbl->Discontinuity(This))
|
|
#define IXAudio2SourceVoice_ExitLoop(This,OperationSet) ((This)->lpVtbl->ExitLoop(This,OperationSet))
|
|
#define IXAudio2SourceVoice_GetState(This,pVoiceState) ((This)->lpVtbl->GetState(This,pVoiceState))
|
|
#define IXAudio2SourceVoice_SetFrequencyRatio(This,Ratio,OperationSet) ((This)->lpVtbl->SetFrequencyRatio(This,Ratio,OperationSet))
|
|
#define IXAudio2SourceVoice_GetFrequencyRatio(This,pRatio) ((This)->lpVtbl->GetFrequencyRatio(This,pRatio))
|
|
#define IXAudio2SourceVoice_SetSourceSampleRate(This,NewSourceSampleRate) ((This)->lpVtbl->SetSourceSampleRate(This,NewSourceSampleRate))
|
|
|
|
// IXAudio2SubmixVoice
|
|
#define IXAudio2SubmixVoice_GetVoiceDetails IXAudio2Voice_GetVoiceDetails
|
|
#define IXAudio2SubmixVoice_SetOutputVoices IXAudio2Voice_SetOutputVoices
|
|
#define IXAudio2SubmixVoice_SetEffectChain IXAudio2Voice_SetEffectChain
|
|
#define IXAudio2SubmixVoice_EnableEffect IXAudio2Voice_EnableEffect
|
|
#define IXAudio2SubmixVoice_DisableEffect IXAudio2Voice_DisableEffect
|
|
#define IXAudio2SubmixVoice_GetEffectState IXAudio2Voice_GetEffectState
|
|
#define IXAudio2SubmixVoice_SetEffectParameters IXAudio2Voice_SetEffectParameters
|
|
#define IXAudio2SubmixVoice_GetEffectParameters IXAudio2Voice_GetEffectParameters
|
|
#define IXAudio2SubmixVoice_SetFilterParameters IXAudio2Voice_SetFilterParameters
|
|
#define IXAudio2SubmixVoice_GetFilterParameters IXAudio2Voice_GetFilterParameters
|
|
#define IXAudio2SubmixVoice_SetOutputFilterParameters IXAudio2Voice_SetOutputFilterParameters
|
|
#define IXAudio2SubmixVoice_GetOutputFilterParameters IXAudio2Voice_GetOutputFilterParameters
|
|
#define IXAudio2SubmixVoice_SetVolume IXAudio2Voice_SetVolume
|
|
#define IXAudio2SubmixVoice_GetVolume IXAudio2Voice_GetVolume
|
|
#define IXAudio2SubmixVoice_SetChannelVolumes IXAudio2Voice_SetChannelVolumes
|
|
#define IXAudio2SubmixVoice_GetChannelVolumes IXAudio2Voice_GetChannelVolumes
|
|
#define IXAudio2SubmixVoice_SetOutputMatrix IXAudio2Voice_SetOutputMatrix
|
|
#define IXAudio2SubmixVoice_GetOutputMatrix IXAudio2Voice_GetOutputMatrix
|
|
#define IXAudio2SubmixVoice_DestroyVoice IXAudio2Voice_DestroyVoice
|
|
|
|
// IXAudio2MasteringVoice
|
|
#define IXAudio2MasteringVoice_GetVoiceDetails IXAudio2Voice_GetVoiceDetails
|
|
#define IXAudio2MasteringVoice_SetOutputVoices IXAudio2Voice_SetOutputVoices
|
|
#define IXAudio2MasteringVoice_SetEffectChain IXAudio2Voice_SetEffectChain
|
|
#define IXAudio2MasteringVoice_EnableEffect IXAudio2Voice_EnableEffect
|
|
#define IXAudio2MasteringVoice_DisableEffect IXAudio2Voice_DisableEffect
|
|
#define IXAudio2MasteringVoice_GetEffectState IXAudio2Voice_GetEffectState
|
|
#define IXAudio2MasteringVoice_SetEffectParameters IXAudio2Voice_SetEffectParameters
|
|
#define IXAudio2MasteringVoice_GetEffectParameters IXAudio2Voice_GetEffectParameters
|
|
#define IXAudio2MasteringVoice_SetFilterParameters IXAudio2Voice_SetFilterParameters
|
|
#define IXAudio2MasteringVoice_GetFilterParameters IXAudio2Voice_GetFilterParameters
|
|
#define IXAudio2MasteringVoice_SetOutputFilterParameters IXAudio2Voice_SetOutputFilterParameters
|
|
#define IXAudio2MasteringVoice_GetOutputFilterParameters IXAudio2Voice_GetOutputFilterParameters
|
|
#define IXAudio2MasteringVoice_SetVolume IXAudio2Voice_SetVolume
|
|
#define IXAudio2MasteringVoice_GetVolume IXAudio2Voice_GetVolume
|
|
#define IXAudio2MasteringVoice_SetChannelVolumes IXAudio2Voice_SetChannelVolumes
|
|
#define IXAudio2MasteringVoice_GetChannelVolumes IXAudio2Voice_GetChannelVolumes
|
|
#define IXAudio2MasteringVoice_SetOutputMatrix IXAudio2Voice_SetOutputMatrix
|
|
#define IXAudio2MasteringVoice_GetOutputMatrix IXAudio2Voice_GetOutputMatrix
|
|
#define IXAudio2MasteringVoice_DestroyVoice IXAudio2Voice_DestroyVoice
|
|
|
|
#endif // #ifndef __cplusplus
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* Utility functions used to convert from pitch in semitones and volume
|
|
* in decibels to the frequency and amplitude ratio units used by XAudio2.
|
|
* These are only defined if the client #defines XAUDIO2_HELPER_FUNCTIONS
|
|
* prior to #including xaudio2.h.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#ifdef XAUDIO2_HELPER_FUNCTIONS
|
|
|
|
#define _USE_MATH_DEFINES // Make math.h define M_PI
|
|
#include <math.h> // For powf, log10f, sinf and asinf
|
|
|
|
// Calculate the argument to SetVolume from a decibel value
|
|
__inline float XAudio2DecibelsToAmplitudeRatio(float Decibels)
|
|
{
|
|
return powf(10.0f, Decibels / 20.0f);
|
|
}
|
|
|
|
// Recover a volume in decibels from an amplitude factor
|
|
__inline float XAudio2AmplitudeRatioToDecibels(float Volume)
|
|
{
|
|
if (Volume == 0)
|
|
{
|
|
return -3.402823466e+38f; // Smallest float value (-FLT_MAX)
|
|
}
|
|
return 20.0f * log10f(Volume);
|
|
}
|
|
|
|
// Calculate the argument to SetFrequencyRatio from a semitone value
|
|
__inline float XAudio2SemitonesToFrequencyRatio(float Semitones)
|
|
{
|
|
// FrequencyRatio = 2 ^ Octaves
|
|
// = 2 ^ (Semitones / 12)
|
|
return powf(2.0f, Semitones / 12.0f);
|
|
}
|
|
|
|
// Recover a pitch in semitones from a frequency ratio
|
|
__inline float XAudio2FrequencyRatioToSemitones(float FrequencyRatio)
|
|
{
|
|
// Semitones = 12 * log2(FrequencyRatio)
|
|
// = 12 * log2(10) * log10(FrequencyRatio)
|
|
return 39.86313713864835f * log10f(FrequencyRatio);
|
|
}
|
|
|
|
// Convert from filter cutoff frequencies expressed in Hertz to the radian
|
|
// frequency values used in XAUDIO2_FILTER_PARAMETERS.Frequency. Note that
|
|
// the highest CutoffFrequency supported is SampleRate/6. Higher values of
|
|
// CutoffFrequency will return XAUDIO2_MAX_FILTER_FREQUENCY.
|
|
__inline float XAudio2CutoffFrequencyToRadians(float CutoffFrequency, UINT32 SampleRate)
|
|
{
|
|
if ((UINT32)(CutoffFrequency * 6.0f) >= SampleRate)
|
|
{
|
|
return XAUDIO2_MAX_FILTER_FREQUENCY;
|
|
}
|
|
return 2.0f * sinf((float)M_PI * CutoffFrequency / SampleRate);
|
|
}
|
|
|
|
// Convert from radian frequencies back to absolute frequencies in Hertz
|
|
__inline float XAudio2RadiansToCutoffFrequency(float Radians, float SampleRate)
|
|
{
|
|
return SampleRate * asinf(Radians / 2.0f) / (float)M_PI;
|
|
}
|
|
#endif // #ifdef XAUDIO2_HELPER_FUNCTIONS
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* XAudio2Create: Top-level function that creates an XAudio2 instance.
|
|
*
|
|
* On Windows this is just an inline function that calls CoCreateInstance
|
|
* and Initialize. The arguments are described above, under Initialize,
|
|
* except that the XAUDIO2_DEBUG_ENGINE flag can be used here to select
|
|
* the debug version of XAudio2.
|
|
*
|
|
* On Xbox, this function is implemented in the XAudio2 library, and the
|
|
* XAUDIO2_DEBUG_ENGINE flag has no effect; the client must explicitly
|
|
* link with the debug version of the library to obtain debug behavior.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#ifdef _XBOX
|
|
|
|
STDAPI XAudio2Create(__deref_out IXAudio2** ppXAudio2, UINT32 Flags X2DEFAULT(0),
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XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR));
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#else // Windows
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__inline HRESULT XAudio2Create(__deref_out IXAudio2** ppXAudio2, UINT32 Flags X2DEFAULT(0),
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XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR))
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{
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// Instantiate the appropriate XAudio2 engine
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IXAudio2* pXAudio2;
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#ifdef __cplusplus
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HRESULT hr = CoCreateInstance((Flags & XAUDIO2_DEBUG_ENGINE) ? __uuidof(XAudio2_Debug) : __uuidof(XAudio2),
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NULL, CLSCTX_INPROC_SERVER, __uuidof(IXAudio2), (void**)&pXAudio2);
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if (SUCCEEDED(hr))
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{
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hr = pXAudio2->Initialize(Flags, XAudio2Processor);
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if (SUCCEEDED(hr))
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{
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*ppXAudio2 = pXAudio2;
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}
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else
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{
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pXAudio2->Release();
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}
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}
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#else
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HRESULT hr = CoCreateInstance((Flags & XAUDIO2_DEBUG_ENGINE) ? &CLSID_XAudio2_Debug : &CLSID_XAudio2,
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NULL, CLSCTX_INPROC_SERVER, &IID_IXAudio2, (void**)&pXAudio2);
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if (SUCCEEDED(hr))
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{
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hr = pXAudio2->lpVtbl->Initialize(pXAudio2, Flags, XAudio2Processor);
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if (SUCCEEDED(hr))
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{
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*ppXAudio2 = pXAudio2;
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}
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else
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{
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pXAudio2->lpVtbl->Release(pXAudio2);
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}
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}
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#endif // #ifdef __cplusplus
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return hr;
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}
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#endif // #ifdef _XBOX
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// Undo the #pragma pack(push, 1) directive at the top of this file
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#pragma pack(pop)
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#endif // #ifndef GUID_DEFS_ONLY
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#endif // #ifndef __XAUDIO2_INCLUDED__
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