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-/**************************************************************************
- *
- * Copyright (c) Microsoft Corporation. All rights reserved.
- *
- * File: xaudio2.h
- * Content: Declarations for the XAudio2 game audio API.
- *
- **************************************************************************/
-
-#ifndef __XAUDIO2_INCLUDED__
-#define __XAUDIO2_INCLUDED__
-
-
-/**************************************************************************
- *
- * XAudio2 COM object class and interface IDs.
- *
- **************************************************************************/
-
-#include <comdecl.h> // For DEFINE_CLSID and DEFINE_IID
-
-// XAudio 2.0 (March 2008 SDK)
-//DEFINE_CLSID(XAudio2, fac23f48, 31f5, 45a8, b4, 9b, 52, 25, d6, 14, 01, aa);
-//DEFINE_CLSID(XAudio2_Debug, fac23f48, 31f5, 45a8, b4, 9b, 52, 25, d6, 14, 01, db);
-
-// XAudio 2.1 (June 2008 SDK)
-//DEFINE_CLSID(XAudio2, e21a7345, eb21, 468e, be, 50, 80, 4d, b9, 7c, f7, 08);
-//DEFINE_CLSID(XAudio2_Debug, f7a76c21, 53d4, 46bb, ac, 53, 8b, 45, 9c, ae, 46, bd);
-
-// XAudio 2.2 (August 2008 SDK)
-//DEFINE_CLSID(XAudio2, b802058a, 464a, 42db, bc, 10, b6, 50, d6, f2, 58, 6a);
-//DEFINE_CLSID(XAudio2_Debug, 97dfb7e7, 5161, 4015, 87, a9, c7, 9e, 6a, 19, 52, cc);
-
-// XAudio 2.3 (November 2008 SDK)
-//DEFINE_CLSID(XAudio2, 4c5e637a, 16c7, 4de3, 9c, 46, 5e, d2, 21, 81, 96, 2d);
-//DEFINE_CLSID(XAudio2_Debug, ef0aa05d, 8075, 4e5d, be, ad, 45, be, 0c, 3c, cb, b3);
-
-// XAudio 2.4 (March 2009 SDK)
-//DEFINE_CLSID(XAudio2, 03219e78, 5bc3, 44d1, b9, 2e, f6, 3d, 89, cc, 65, 26);
-//DEFINE_CLSID(XAudio2_Debug, 4256535c, 1ea4, 4d4b, 8a, d5, f9, db, 76, 2e, ca, 9e);
-
-// XAudio 2.5 (August 2009 SDK)
-//DEFINE_CLSID(XAudio2, 4c9b6dde, 6809, 46e6, a2, 78, 9b, 6a, 97, 58, 86, 70);
-//DEFINE_CLSID(XAudio2_Debug, 715bdd1a, aa82, 436b, b0, fa, 6a, ce, a3, 9b, d0, a1);
-
-// XAudio 2.6 (February 2010 SDK)
-//DEFINE_CLSID(XAudio2, 3eda9b49, 2085, 498b, 9b, b2, 39, a6, 77, 84, 93, de);
-//DEFINE_CLSID(XAudio2_Debug, 47199894, 7cc2, 444d, 98, 73, ce, d2, 56, 2c, c6, 0e);
-
-// XAudio 2.7 (June 2010 SDK)
-DEFINE_CLSID(XAudio2, 5a508685, a254, 4fba, 9b, 82, 9a, 24, b0, 03, 06, af);
-DEFINE_CLSID(XAudio2_Debug, db05ea35, 0329, 4d4b, a5, 3a, 6d, ea, d0, 3d, 38, 52);
-DEFINE_IID(IXAudio2, 8bcf1f58, 9fe7, 4583, 8a, c6, e2, ad, c4, 65, c8, bb);
-
-
-// Ignore the rest of this header if only the GUID definitions were requested
-#ifndef GUID_DEFS_ONLY
-
-#ifdef _XBOX
- #include <xobjbase.h> // Xbox COM declarations (IUnknown, etc)
-#else
- #include <objbase.h> // Windows COM declarations
-#endif
-
-#include <sal.h> // Markers for documenting API semantics
-#include <audiodefs.h> // Basic audio data types and constants
-#include <xma2defs.h> // Data types and constants for XMA2 audio
-
-// All structures defined in this file use tight field packing
-#pragma pack(push, 1)
-
-
-/**************************************************************************
- *
- * XAudio2 constants, flags and error codes.
- *
- **************************************************************************/
-
-// Numeric boundary values
-#define XAUDIO2_MAX_BUFFER_BYTES 0x80000000 // Maximum bytes allowed in a source buffer
-#define XAUDIO2_MAX_QUEUED_BUFFERS 64 // Maximum buffers allowed in a voice queue
-#define XAUDIO2_MAX_BUFFERS_SYSTEM 2 // Maximum buffers allowed for system threads (Xbox 360 only)
-#define XAUDIO2_MAX_AUDIO_CHANNELS 64 // Maximum channels in an audio stream
-#define XAUDIO2_MIN_SAMPLE_RATE 1000 // Minimum audio sample rate supported
-#define XAUDIO2_MAX_SAMPLE_RATE 200000 // Maximum audio sample rate supported
-#define XAUDIO2_MAX_VOLUME_LEVEL 16777216.0f // Maximum acceptable volume level (2^24)
-#define XAUDIO2_MIN_FREQ_RATIO (1/1024.0f) // Minimum SetFrequencyRatio argument
-#define XAUDIO2_MAX_FREQ_RATIO 1024.0f // Maximum MaxFrequencyRatio argument
-#define XAUDIO2_DEFAULT_FREQ_RATIO 2.0f // Default MaxFrequencyRatio argument
-#define XAUDIO2_MAX_FILTER_ONEOVERQ 1.5f // Maximum XAUDIO2_FILTER_PARAMETERS.OneOverQ
-#define XAUDIO2_MAX_FILTER_FREQUENCY 1.0f // Maximum XAUDIO2_FILTER_PARAMETERS.Frequency
-#define XAUDIO2_MAX_LOOP_COUNT 254 // Maximum non-infinite XAUDIO2_BUFFER.LoopCount
-#define XAUDIO2_MAX_INSTANCES 8 // Maximum simultaneous XAudio2 objects on Xbox 360
-
-// For XMA voices on Xbox 360 there is an additional restriction on the MaxFrequencyRatio
-// argument and the voice's sample rate: the product of these numbers cannot exceed 600000
-// for one-channel voices or 300000 for voices with more than one channel.
-#define XAUDIO2_MAX_RATIO_TIMES_RATE_XMA_MONO 600000
-#define XAUDIO2_MAX_RATIO_TIMES_RATE_XMA_MULTICHANNEL 300000
-
-// Numeric values with special meanings
-#define XAUDIO2_COMMIT_NOW 0 // Used as an OperationSet argument
-#define XAUDIO2_COMMIT_ALL 0 // Used in IXAudio2::CommitChanges
-#define XAUDIO2_INVALID_OPSET (UINT32)(-1) // Not allowed for OperationSet arguments
-#define XAUDIO2_NO_LOOP_REGION 0 // Used in XAUDIO2_BUFFER.LoopCount
-#define XAUDIO2_LOOP_INFINITE 255 // Used in XAUDIO2_BUFFER.LoopCount
-#define XAUDIO2_DEFAULT_CHANNELS 0 // Used in CreateMasteringVoice
-#define XAUDIO2_DEFAULT_SAMPLERATE 0 // Used in CreateMasteringVoice
-
-// Flags
-#define XAUDIO2_DEBUG_ENGINE 0x0001 // Used in XAudio2Create on Windows only
-#define XAUDIO2_VOICE_NOPITCH 0x0002 // Used in IXAudio2::CreateSourceVoice
-#define XAUDIO2_VOICE_NOSRC 0x0004 // Used in IXAudio2::CreateSourceVoice
-#define XAUDIO2_VOICE_USEFILTER 0x0008 // Used in IXAudio2::CreateSource/SubmixVoice
-#define XAUDIO2_VOICE_MUSIC 0x0010 // Used in IXAudio2::CreateSourceVoice
-#define XAUDIO2_PLAY_TAILS 0x0020 // Used in IXAudio2SourceVoice::Stop
-#define XAUDIO2_END_OF_STREAM 0x0040 // Used in XAUDIO2_BUFFER.Flags
-#define XAUDIO2_SEND_USEFILTER 0x0080 // Used in XAUDIO2_SEND_DESCRIPTOR.Flags
-
-// Default parameters for the built-in filter
-#define XAUDIO2_DEFAULT_FILTER_TYPE LowPassFilter
-#define XAUDIO2_DEFAULT_FILTER_FREQUENCY XAUDIO2_MAX_FILTER_FREQUENCY
-#define XAUDIO2_DEFAULT_FILTER_ONEOVERQ 1.0f
-
-// Internal XAudio2 constants
-#ifdef _XBOX
- #define XAUDIO2_QUANTUM_NUMERATOR 2 // On Xbox 360, XAudio2 processes audio
- #define XAUDIO2_QUANTUM_DENOMINATOR 375 // in 5.333ms chunks (= 2/375 seconds)
-#else
- #define XAUDIO2_QUANTUM_NUMERATOR 1 // On Windows, XAudio2 processes audio
- #define XAUDIO2_QUANTUM_DENOMINATOR 100 // in 10ms chunks (= 1/100 seconds)
-#endif
-#define XAUDIO2_QUANTUM_MS (1000.0f * XAUDIO2_QUANTUM_NUMERATOR / XAUDIO2_QUANTUM_DENOMINATOR)
-
-// XAudio2 error codes
-#define FACILITY_XAUDIO2 0x896
-#define XAUDIO2_E_INVALID_CALL 0x88960001 // An API call or one of its arguments was illegal
-#define XAUDIO2_E_XMA_DECODER_ERROR 0x88960002 // The XMA hardware suffered an unrecoverable error
-#define XAUDIO2_E_XAPO_CREATION_FAILED 0x88960003 // XAudio2 failed to initialize an XAPO effect
-#define XAUDIO2_E_DEVICE_INVALIDATED 0x88960004 // An audio device became unusable (unplugged, etc)
-
-
-/**************************************************************************
- *
- * Forward declarations for the XAudio2 interfaces.
- *
- **************************************************************************/
-
-#ifdef __cplusplus
- #define FWD_DECLARE(x) interface x
-#else
- #define FWD_DECLARE(x) typedef interface x x
-#endif
-
-FWD_DECLARE(IXAudio2);
-FWD_DECLARE(IXAudio2Voice);
-FWD_DECLARE(IXAudio2SourceVoice);
-FWD_DECLARE(IXAudio2SubmixVoice);
-FWD_DECLARE(IXAudio2MasteringVoice);
-FWD_DECLARE(IXAudio2EngineCallback);
-FWD_DECLARE(IXAudio2VoiceCallback);
-
-
-/**************************************************************************
- *
- * XAudio2 structures and enumerations.
- *
- **************************************************************************/
-
-// Used in IXAudio2::Initialize
-#ifdef _XBOX
- typedef enum XAUDIO2_XBOX_HWTHREAD_SPECIFIER
- {
- XboxThread0 = 0x01,
- XboxThread1 = 0x02,
- XboxThread2 = 0x04,
- XboxThread3 = 0x08,
- XboxThread4 = 0x10,
- XboxThread5 = 0x20,
- XAUDIO2_ANY_PROCESSOR = XboxThread4,
- XAUDIO2_DEFAULT_PROCESSOR = XAUDIO2_ANY_PROCESSOR
- } XAUDIO2_XBOX_HWTHREAD_SPECIFIER, XAUDIO2_PROCESSOR;
-#else
- typedef enum XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER
- {
- Processor1 = 0x00000001,
- Processor2 = 0x00000002,
- Processor3 = 0x00000004,
- Processor4 = 0x00000008,
- Processor5 = 0x00000010,
- Processor6 = 0x00000020,
- Processor7 = 0x00000040,
- Processor8 = 0x00000080,
- Processor9 = 0x00000100,
- Processor10 = 0x00000200,
- Processor11 = 0x00000400,
- Processor12 = 0x00000800,
- Processor13 = 0x00001000,
- Processor14 = 0x00002000,
- Processor15 = 0x00004000,
- Processor16 = 0x00008000,
- Processor17 = 0x00010000,
- Processor18 = 0x00020000,
- Processor19 = 0x00040000,
- Processor20 = 0x00080000,
- Processor21 = 0x00100000,
- Processor22 = 0x00200000,
- Processor23 = 0x00400000,
- Processor24 = 0x00800000,
- Processor25 = 0x01000000,
- Processor26 = 0x02000000,
- Processor27 = 0x04000000,
- Processor28 = 0x08000000,
- Processor29 = 0x10000000,
- Processor30 = 0x20000000,
- Processor31 = 0x40000000,
- Processor32 = 0x80000000,
- XAUDIO2_ANY_PROCESSOR = 0xffffffff,
- XAUDIO2_DEFAULT_PROCESSOR = XAUDIO2_ANY_PROCESSOR
- } XAUDIO2_WINDOWS_PROCESSOR_SPECIFIER, XAUDIO2_PROCESSOR;
-#endif
-
-// Used in XAUDIO2_DEVICE_DETAILS below to describe the types of applications
-// that the user has specified each device as a default for. 0 means that the
-// device isn't the default for any role.
-typedef enum XAUDIO2_DEVICE_ROLE
-{
- NotDefaultDevice = 0x0,
- DefaultConsoleDevice = 0x1,
- DefaultMultimediaDevice = 0x2,
- DefaultCommunicationsDevice = 0x4,
- DefaultGameDevice = 0x8,
- GlobalDefaultDevice = 0xf,
- InvalidDeviceRole = ~GlobalDefaultDevice
-} XAUDIO2_DEVICE_ROLE;
-
-// Returned by IXAudio2::GetDeviceDetails
-typedef struct XAUDIO2_DEVICE_DETAILS
-{
- WCHAR DeviceID[256]; // String identifier for the audio device.
- WCHAR DisplayName[256]; // Friendly name suitable for display to a human.
- XAUDIO2_DEVICE_ROLE Role; // Roles that the device should be used for.
- WAVEFORMATEXTENSIBLE OutputFormat; // The device's native PCM audio output format.
-} XAUDIO2_DEVICE_DETAILS;
-
-// Returned by IXAudio2Voice::GetVoiceDetails
-typedef struct XAUDIO2_VOICE_DETAILS
-{
- UINT32 CreationFlags; // Flags the voice was created with.
- UINT32 InputChannels; // Channels in the voice's input audio.
- UINT32 InputSampleRate; // Sample rate of the voice's input audio.
-} XAUDIO2_VOICE_DETAILS;
-
-// Used in XAUDIO2_VOICE_SENDS below
-typedef struct XAUDIO2_SEND_DESCRIPTOR
-{
- UINT32 Flags; // Either 0 or XAUDIO2_SEND_USEFILTER.
- IXAudio2Voice* pOutputVoice; // This send's destination voice.
-} XAUDIO2_SEND_DESCRIPTOR;
-
-// Used in the voice creation functions and in IXAudio2Voice::SetOutputVoices
-typedef struct XAUDIO2_VOICE_SENDS
-{
- UINT32 SendCount; // Number of sends from this voice.
- XAUDIO2_SEND_DESCRIPTOR* pSends; // Array of SendCount send descriptors.
-} XAUDIO2_VOICE_SENDS;
-
-// Used in XAUDIO2_EFFECT_CHAIN below
-typedef struct XAUDIO2_EFFECT_DESCRIPTOR
-{
- IUnknown* pEffect; // Pointer to the effect object's IUnknown interface.
- BOOL InitialState; // TRUE if the effect should begin in the enabled state.
- UINT32 OutputChannels; // How many output channels the effect should produce.
-} XAUDIO2_EFFECT_DESCRIPTOR;
-
-// Used in the voice creation functions and in IXAudio2Voice::SetEffectChain
-typedef struct XAUDIO2_EFFECT_CHAIN
-{
- UINT32 EffectCount; // Number of effects in this voice's effect chain.
- XAUDIO2_EFFECT_DESCRIPTOR* pEffectDescriptors; // Array of effect descriptors.
-} XAUDIO2_EFFECT_CHAIN;
-
-// Used in XAUDIO2_FILTER_PARAMETERS below
-typedef enum XAUDIO2_FILTER_TYPE
-{
- LowPassFilter, // Attenuates frequencies above the cutoff frequency.
- BandPassFilter, // Attenuates frequencies outside a given range.
- HighPassFilter, // Attenuates frequencies below the cutoff frequency.
- NotchFilter // Attenuates frequencies inside a given range.
-} XAUDIO2_FILTER_TYPE;
-
-// Used in IXAudio2Voice::Set/GetFilterParameters and Set/GetOutputFilterParameters
-typedef struct XAUDIO2_FILTER_PARAMETERS
-{
- XAUDIO2_FILTER_TYPE Type; // Low-pass, band-pass or high-pass.
- float Frequency; // Radian frequency (2 * sin(pi*CutoffFrequency/SampleRate));
- // must be >= 0 and <= XAUDIO2_MAX_FILTER_FREQUENCY
- // (giving a maximum CutoffFrequency of SampleRate/6).
- float OneOverQ; // Reciprocal of the filter's quality factor Q;
- // must be > 0 and <= XAUDIO2_MAX_FILTER_ONEOVERQ.
-} XAUDIO2_FILTER_PARAMETERS;
-
-// Used in IXAudio2SourceVoice::SubmitSourceBuffer
-typedef struct XAUDIO2_BUFFER
-{
- UINT32 Flags; // Either 0 or XAUDIO2_END_OF_STREAM.
- UINT32 AudioBytes; // Size of the audio data buffer in bytes.
- const BYTE* pAudioData; // Pointer to the audio data buffer.
- UINT32 PlayBegin; // First sample in this buffer to be played.
- UINT32 PlayLength; // Length of the region to be played in samples,
- // or 0 to play the whole buffer.
- UINT32 LoopBegin; // First sample of the region to be looped.
- UINT32 LoopLength; // Length of the desired loop region in samples,
- // or 0 to loop the entire buffer.
- UINT32 LoopCount; // Number of times to repeat the loop region,
- // or XAUDIO2_LOOP_INFINITE to loop forever.
- void* pContext; // Context value to be passed back in callbacks.
-} XAUDIO2_BUFFER;
-
-// Used in IXAudio2SourceVoice::SubmitSourceBuffer when submitting XWMA data.
-// NOTE: If an XWMA sound is submitted in more than one buffer, each buffer's
-// pDecodedPacketCumulativeBytes[PacketCount-1] value must be subtracted from
-// all the entries in the next buffer's pDecodedPacketCumulativeBytes array.
-// And whether a sound is submitted in more than one buffer or not, the final
-// buffer of the sound should use the XAUDIO2_END_OF_STREAM flag, or else the
-// client must call IXAudio2SourceVoice::Discontinuity after submitting it.
-typedef struct XAUDIO2_BUFFER_WMA
-{
- const UINT32* pDecodedPacketCumulativeBytes; // Decoded packet's cumulative size array.
- // Each element is the number of bytes accumulated
- // when the corresponding XWMA packet is decoded in
- // order. The array must have PacketCount elements.
- UINT32 PacketCount; // Number of XWMA packets submitted. Must be >= 1 and
- // divide evenly into XAUDIO2_BUFFER.AudioBytes.
-} XAUDIO2_BUFFER_WMA;
-
-// Returned by IXAudio2SourceVoice::GetState
-typedef struct XAUDIO2_VOICE_STATE
-{
- void* pCurrentBufferContext; // The pContext value provided in the XAUDIO2_BUFFER
- // that is currently being processed, or NULL if
- // there are no buffers in the queue.
- UINT32 BuffersQueued; // Number of buffers currently queued on the voice
- // (including the one that is being processed).
- UINT64 SamplesPlayed; // Total number of samples produced by the voice since
- // it began processing the current audio stream.
-} XAUDIO2_VOICE_STATE;
-
-// Returned by IXAudio2::GetPerformanceData
-typedef struct XAUDIO2_PERFORMANCE_DATA
-{
- // CPU usage information
- UINT64 AudioCyclesSinceLastQuery; // CPU cycles spent on audio processing since the
- // last call to StartEngine or GetPerformanceData.
- UINT64 TotalCyclesSinceLastQuery; // Total CPU cycles elapsed since the last call
- // (only counts the CPU XAudio2 is running on).
- UINT32 MinimumCyclesPerQuantum; // Fewest CPU cycles spent processing any one
- // audio quantum since the last call.
- UINT32 MaximumCyclesPerQuantum; // Most CPU cycles spent processing any one
- // audio quantum since the last call.
-
- // Memory usage information
- UINT32 MemoryUsageInBytes; // Total heap space currently in use.
-
- // Audio latency and glitching information
- UINT32 CurrentLatencyInSamples; // Minimum delay from when a sample is read from a
- // source buffer to when it reaches the speakers.
- UINT32 GlitchesSinceEngineStarted; // Audio dropouts since the engine was started.
-
- // Data about XAudio2's current workload
- UINT32 ActiveSourceVoiceCount; // Source voices currently playing.
- UINT32 TotalSourceVoiceCount; // Source voices currently existing.
- UINT32 ActiveSubmixVoiceCount; // Submix voices currently playing/existing.
-
- UINT32 ActiveResamplerCount; // Resample xAPOs currently active.
- UINT32 ActiveMatrixMixCount; // MatrixMix xAPOs currently active.
-
- // Usage of the hardware XMA decoder (Xbox 360 only)
- UINT32 ActiveXmaSourceVoices; // Number of source voices decoding XMA data.
- UINT32 ActiveXmaStreams; // A voice can use more than one XMA stream.
-} XAUDIO2_PERFORMANCE_DATA;
-
-// Used in IXAudio2::SetDebugConfiguration
-typedef struct XAUDIO2_DEBUG_CONFIGURATION
-{
- UINT32 TraceMask; // Bitmap of enabled debug message types.
- UINT32 BreakMask; // Message types that will break into the debugger.
- BOOL LogThreadID; // Whether to log the thread ID with each message.
- BOOL LogFileline; // Whether to log the source file and line number.
- BOOL LogFunctionName; // Whether to log the function name.
- BOOL LogTiming; // Whether to log message timestamps.
-} XAUDIO2_DEBUG_CONFIGURATION;
-
-// Values for the TraceMask and BreakMask bitmaps. Only ERRORS and WARNINGS
-// are valid in BreakMask. WARNINGS implies ERRORS, DETAIL implies INFO, and
-// FUNC_CALLS implies API_CALLS. By default, TraceMask is ERRORS and WARNINGS
-// and all the other settings are zero.
-#define XAUDIO2_LOG_ERRORS 0x0001 // For handled errors with serious effects.
-#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),
- XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR));
-
-#else // Windows
-
-__inline HRESULT XAudio2Create(__deref_out IXAudio2** ppXAudio2, UINT32 Flags X2DEFAULT(0),
- XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR))
-{
- // Instantiate the appropriate XAudio2 engine
- IXAudio2* pXAudio2;
-
- #ifdef __cplusplus
-
- HRESULT hr = CoCreateInstance((Flags & XAUDIO2_DEBUG_ENGINE) ? __uuidof(XAudio2_Debug) : __uuidof(XAudio2),
- NULL, CLSCTX_INPROC_SERVER, __uuidof(IXAudio2), (void**)&pXAudio2);
- if (SUCCEEDED(hr))
- {
- hr = pXAudio2->Initialize(Flags, XAudio2Processor);
-
- if (SUCCEEDED(hr))
- {
- *ppXAudio2 = pXAudio2;
- }
- else
- {
- pXAudio2->Release();
- }
- }
-
- #else
-
- HRESULT hr = CoCreateInstance((Flags & XAUDIO2_DEBUG_ENGINE) ? &CLSID_XAudio2_Debug : &CLSID_XAudio2,
- NULL, CLSCTX_INPROC_SERVER, &IID_IXAudio2, (void**)&pXAudio2);
- if (SUCCEEDED(hr))
- {
- hr = pXAudio2->lpVtbl->Initialize(pXAudio2, Flags, XAudio2Processor);
-
- if (SUCCEEDED(hr))
- {
- *ppXAudio2 = pXAudio2;
- }
- else
- {
- pXAudio2->lpVtbl->Release(pXAudio2);
- }
- }
-
- #endif // #ifdef __cplusplus
-
- return hr;
-}
-
-#endif // #ifdef _XBOX
-
-
-// Undo the #pragma pack(push, 1) directive at the top of this file
-#pragma pack(pop)
-
-#endif // #ifndef GUID_DEFS_ONLY
-#endif // #ifndef __XAUDIO2_INCLUDED__