libretro/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch.git synced 2024-11-27 02:00:41 +00:00
Code Issues Actions 65 Packages Projects Releases Wiki Activity
e7f182811a
RetroArch/audio/drivers/xaudio29.h
twinaphex 1d6f547e7f (Audio) Cleanups
2020-01-04 10:39:33 +01:00

911 lines
48 KiB
C
Raw Blame History

/* RetroArch - A frontend for libretro.
* Copyright (C) 2018 - Krzysztof Haładyn
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
/**************************************************************************
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* File: xaudio2.h
* Content: Declarations for the XAudio2 game audio API.
*
**************************************************************************/
/* Modified slightly to build without requiring the WinRT compiler since that is only available in C++ sources */
#ifdef _MSC_VER
#pragma once
#endif
#ifndef __XAUDIO2_INCLUDED__
#define __XAUDIO2_INCLUDED__
#include <sdkddkver.h>
#include <retro_inline.h>
#if(_WIN32_WINNT < _WIN32_WINNT_WIN8)
#error "This version of XAudio2 is available only in Windows 8 or later. Use the XAudio2 headers and libraries from the DirectX SDK with applications that target Windows 7 and earlier versions."
#endif /* (_WIN32_WINNT < _WIN32_WINNT_WIN8) */
#include <winapifamily.h>
#pragma region Application Family
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_TV_APP | WINAPI_PARTITION_TV_TITLE)
/* Current name of the DLL shipped in the same SDK as this header.
* The name reflects the current version */
#if(_WIN32_WINNT >= _WIN32_WINNT_WIN10)
#define XAUDIO2_DLL_A "xaudio2_9.dll"
#define XAUDIO2_DLL_W L"xaudio2_9.dll"
#define XAUDIO2D_DLL_A "xaudio2_9d.dll"
#define XAUDIO2D_DLL_W L"xaudio2_9d.dll"
#else
#define XAUDIO2_DLL_A "xaudio2_8.dll"
#define XAUDIO2_DLL_W L"xaudio2_8.dll"
#define XAUDIO2D_DLL_A "xaudio2_8.dll"
#define XAUDIO2D_DLL_W L"xaudio2_8.dll"
#endif
#ifdef UNICODE
#define XAUDIO2_DLL XAUDIO2_DLL_W
#define XAUDIO2D_DLL XAUDIO2D_DLL_W
#else
#define XAUDIO2_DLL XAUDIO2_DLL_A
#define XAUDIO2D_DLL XAUDIO2D_DLL_A
#endif
/**************************************************************************
*
* XAudio2 COM object class and interface IDs.
*
**************************************************************************/
#include <basetyps.h>
#if defined(__cplusplus__) && defined(__WINRT__)
#if(_WIN32_WINNT >= _WIN32_WINNT_WIN10)
/* XAudio 2.9 */
interface __declspec(uuid("2B02E3CF-2E0B-4ec3-BE45-1B2A3FE7210D")) IXAudio2;
#else
/* XAudio 2.8 */
interface __declspec(uuid("60d8dac8-5aa1-4e8e-b597-2f5e2883d484")) IXAudio2;
#endif
#else
/* Modified for C support */
#define DEFINE_GUID_X(n, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
static const GUID n = { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }
#define DEFINE_CLSID_X(className, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
DEFINE_GUID_X(CLSID_##className, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
#define DEFINE_IID_X(interfaceName, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
DEFINE_GUID_X(IID_##interfaceName, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
#if(_WIN32_WINNT >= _WIN32_WINNT_WIN10)
DEFINE_IID_X(IXAudio2, 2B02E3CF, 2E0B, 4ec3, BE, 45, 1B, 2A, 3F, E7, 21, 0D);
#else
DEFINE_IID_X(IXAudio2, 60d8dac8, 5aa1, 4e8e, b5, 97, 2f, 5e, 28, 83, d4, 84);
#endif
#endif
/* Ignore the rest of this header if only the GUID definitions were requested */
#ifndef GUID_DEFS_ONLY
#include <objbase.h> /* Windows COM declarations */
#include <sal.h> /* Markers for documenting API semantics */
#include <mmreg.h> /* Basic data types and constants for audio work */
#include <audiosessiontypes.h> /* For AUDIO_STREAM_CATEGORY */
/* 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 */
#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_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 */
#define XAUDIO2_VOICE_NOSAMPLESPLAYED 0x0100 /* Used in IXAudio2SourceVoice::GetState */
#define XAUDIO2_STOP_ENGINE_WHEN_IDLE 0x2000 /* Used in XAudio2Create to force the engine to Stop when no source voices are Started, and Start when a voice is Started */
#define XAUDIO2_1024_QUANTUM 0x8000 /* Used in XAudio2Create to specify nondefault processing quantum of 21.33 ms (1024 samples at 48KHz) */
#define XAUDIO2_NO_VIRTUAL_AUDIO_CLIENT 0x10000 /* Used in CreateMasteringVoice to create a virtual audio client */
/* 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 */
/* The audio frame quantum can be calculated by reducing the fraction:
* SamplesPerAudioFrame / SamplesPerSecond */
#define XAUDIO2_QUANTUM_NUMERATOR 1 /* On Windows, XAudio2 processes audio */
#define XAUDIO2_QUANTUM_DENOMINATOR 100 /* in 10ms chunks (= 1/100 seconds) */
#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 XAudio2Create, specifies which CPU(s) to use. */
typedef UINT32 XAUDIO2_PROCESSOR;
#define Processor1 0x00000001
#define Processor2 0x00000002
#define Processor3 0x00000004
#define Processor4 0x00000008
#define Processor5 0x00000010
#define Processor6 0x00000020
#define Processor7 0x00000040
#define Processor8 0x00000080
#define Processor9 0x00000100
#define Processor10 0x00000200
#define Processor11 0x00000400
#define Processor12 0x00000800
#define Processor13 0x00001000
#define Processor14 0x00002000
#define Processor15 0x00004000
#define Processor16 0x00008000
#define Processor17 0x00010000
#define Processor18 0x00020000
#define Processor19 0x00040000
#define Processor20 0x00080000
#define Processor21 0x00100000
#define Processor22 0x00200000
#define Processor23 0x00400000
#define Processor24 0x00800000
#define Processor25 0x01000000
#define Processor26 0x02000000
#define Processor27 0x04000000
#define Processor28 0x08000000
#define Processor29 0x10000000
#define Processor30 0x20000000
#define Processor31 0x40000000
#define Processor32 0x80000000
#define XAUDIO2_ANY_PROCESSOR 0xffffffff
#define XAUDIO2_DEFAULT_PROCESSOR Processor1
/* Returned by IXAudio2Voice::GetVoiceDetails */
typedef struct XAUDIO2_VOICE_DETAILS
{
UINT32 CreationFlags; /* Flags the voice was created with. */
UINT32 ActiveFlags; /* Flags currently active. */
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 (state-variable filter). */
BandPassFilter, /* Attenuates frequencies outside a given range (state-variable filter). */
HighPassFilter, /* Attenuates frequencies below the cutoff frequency (state-variable filter). */
NotchFilter, /* Attenuates frequencies inside a given range (state-variable filter). */
LowPassOnePoleFilter, /* Attenuates frequencies above the cutoff frequency (one-pole filter, XAUDIO2_FILTER_PARAMETERS.OneOverQ has no effect) */
HighPassOnePoleFilter /* Attenuates frequencies below the cutoff frequency (one-pole filter, XAUDIO2_FILTER_PARAMETERS.OneOverQ has no effect) */
} XAUDIO2_FILTER_TYPE;
/* Used in IXAudio2Voice::Set/GetFilterParameters and Set/GetOutputFilterParameters */
typedef struct XAUDIO2_FILTER_PARAMETERS
{
XAUDIO2_FILTER_TYPE Type; /* Filter type. */
float Frequency; /* Filter coefficient. */
/* must be >= 0 and <= XAUDIO2_MAX_FILTER_FREQUENCY */
/* See XAudio2CutoffFrequencyToRadians() for state-variable filter types and */
/* XAudio2CutoffFrequencyToOnePoleCoefficient() for one-pole filter types. */
float OneOverQ; /* Reciprocal of the filter's quality factor Q; */
/* must be > 0 and <= XAUDIO2_MAX_FILTER_ONEOVERQ. */
/* Has no effect for one-pole filters. */
} 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.
* If XAUDIO2_VOICE_NOSAMPLESPLAYED is specified
* in the call to IXAudio2SourceVoice::GetState,
* this member will not be calculated, saving CPU. */
} 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)
{
STDMETHOD(QueryInterface) (THIS_ REFIID riid, _Outptr_ void** ppvInterface) PURE;
STDMETHOD_(ULONG, AddRef) (THIS) PURE;
STDMETHOD_(ULONG, Release) (THIS) PURE;
STDMETHOD(RegisterForCallbacks) (_In_ IXAudio2EngineCallback* pCallback) PURE;
STDMETHOD_(void, UnregisterForCallbacks) (_In_ IXAudio2EngineCallback* pCallback) PURE;
STDMETHOD(CreateSourceVoice) (THIS_ _Outptr_ 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;
STDMETHOD(CreateSubmixVoice) (THIS_ _Outptr_ 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;
STDMETHOD(CreateMasteringVoice) (THIS_ _Outptr_ IXAudio2MasteringVoice** ppMasteringVoice,
UINT32 InputChannels X2DEFAULT(XAUDIO2_DEFAULT_CHANNELS),
UINT32 InputSampleRate X2DEFAULT(XAUDIO2_DEFAULT_SAMPLERATE),
UINT32 Flags X2DEFAULT(0), _In_opt_z_ LPCWSTR szDeviceId X2DEFAULT(NULL),
_In_opt_ const XAUDIO2_EFFECT_CHAIN* pEffectChain X2DEFAULT(NULL),
_In_ AUDIO_STREAM_CATEGORY StreamCategory X2DEFAULT(AudioCategory_GameEffects)) PURE;
STDMETHOD(StartEngine) (THIS) PURE;
STDMETHOD_(void, StopEngine) (THIS) PURE;
STDMETHOD(CommitChanges) (THIS_ UINT32 OperationSet) PURE;
STDMETHOD_(void, GetPerformanceData) (THIS_ _Out_ XAUDIO2_PERFORMANCE_DATA* pPerfData) PURE;
STDMETHOD_(void, SetDebugConfiguration) (THIS_ _In_opt_ const XAUDIO2_DEBUG_CONFIGURATION* pDebugConfiguration,
_Reserved_ void* pReserved X2DEFAULT(NULL)) PURE;
};
/**************************************************************************
*
* IXAudio2Voice: Base voice management interface.
*
**************************************************************************/
#undef INTERFACE
#define INTERFACE IXAudio2Voice
DECLARE_INTERFACE(IXAudio2Voice)
{
#define Declare_IXAudio2Voice_Methods() \
STDMETHOD_(void, GetVoiceDetails) (THIS_ _Out_ XAUDIO2_VOICE_DETAILS* pVoiceDetails) PURE; \
STDMETHOD(SetOutputVoices) (THIS_ _In_opt_ const XAUDIO2_VOICE_SENDS* pSendList) PURE; \
STDMETHOD(SetEffectChain) (THIS_ _In_opt_ const XAUDIO2_EFFECT_CHAIN* pEffectChain) PURE; \
STDMETHOD(EnableEffect) (THIS_ UINT32 EffectIndex, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD(DisableEffect) (THIS_ UINT32 EffectIndex, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD_(void, GetEffectState) (THIS_ UINT32 EffectIndex, _Out_ BOOL* pEnabled) PURE; \
STDMETHOD(SetEffectParameters) (THIS_ UINT32 EffectIndex, \
_In_reads_bytes_(ParametersByteSize) const void* pParameters, \
UINT32 ParametersByteSize, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD(GetEffectParameters) (THIS_ UINT32 EffectIndex, \
_Out_writes_bytes_(ParametersByteSize) void* pParameters, \
UINT32 ParametersByteSize) PURE; \
STDMETHOD(SetFilterParameters) (THIS_ _In_ const XAUDIO2_FILTER_PARAMETERS* pParameters, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD_(void, GetFilterParameters) (THIS_ _Out_ XAUDIO2_FILTER_PARAMETERS* pParameters) PURE; \
STDMETHOD(SetOutputFilterParameters) (THIS_ _In_opt_ IXAudio2Voice* pDestinationVoice, \
_In_ const XAUDIO2_FILTER_PARAMETERS* pParameters, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD_(void, GetOutputFilterParameters) (THIS_ _In_opt_ IXAudio2Voice* pDestinationVoice, \
_Out_ XAUDIO2_FILTER_PARAMETERS* pParameters) PURE; \
STDMETHOD(SetVolume) (THIS_ float Volume, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD_(void, GetVolume) (THIS_ _Out_ float* pVolume) PURE; \
STDMETHOD(SetChannelVolumes) (THIS_ UINT32 Channels, _In_reads_(Channels) const float* pVolumes, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD_(void, GetChannelVolumes) (THIS_ UINT32 Channels, _Out_writes_(Channels) float* pVolumes) PURE; \
STDMETHOD(SetOutputMatrix) (THIS_ _In_opt_ IXAudio2Voice* pDestinationVoice, \
UINT32 SourceChannels, UINT32 DestinationChannels, \
_In_reads_(SourceChannels * DestinationChannels) const float* pLevelMatrix, \
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE; \
STDMETHOD_(void, GetOutputMatrix) (THIS_ _In_opt_ IXAudio2Voice* pDestinationVoice, \
UINT32 SourceChannels, UINT32 DestinationChannels, \
_Out_writes_(SourceChannels * DestinationChannels) float* pLevelMatrix) PURE; \
STDMETHOD_(void, DestroyVoice) (THIS) PURE
Declare_IXAudio2Voice_Methods();
};
/**************************************************************************
*
* IXAudio2SourceVoice: Source voice management interface.
*
**************************************************************************/
#undef INTERFACE
#define INTERFACE IXAudio2SourceVoice
DECLARE_INTERFACE_(IXAudio2SourceVoice, IXAudio2Voice)
{
Declare_IXAudio2Voice_Methods();
STDMETHOD(Start) (THIS_ UINT32 Flags X2DEFAULT(0), UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
STDMETHOD(Stop) (THIS_ UINT32 Flags X2DEFAULT(0), UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
STDMETHOD(SubmitSourceBuffer) (THIS_ _In_ const XAUDIO2_BUFFER* pBuffer, _In_opt_ const XAUDIO2_BUFFER_WMA* pBufferWMA X2DEFAULT(NULL)) PURE;
STDMETHOD(FlushSourceBuffers) (THIS) PURE;
STDMETHOD(Discontinuity) (THIS) PURE;
STDMETHOD(ExitLoop) (THIS_ UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
STDMETHOD_(void, GetState) (THIS_ _Out_ XAUDIO2_VOICE_STATE* pVoiceState, UINT32 Flags X2DEFAULT(0)) PURE;
STDMETHOD(SetFrequencyRatio) (THIS_ float Ratio,
UINT32 OperationSet X2DEFAULT(XAUDIO2_COMMIT_NOW)) PURE;
STDMETHOD_(void, GetFrequencyRatio) (THIS_ _Out_ float* pRatio) PURE;
STDMETHOD(SetSourceSampleRate) (THIS_ UINT32 NewSourceSampleRate) PURE;
};
/**************************************************************************
*
* IXAudio2SubmixVoice: Submixing voice management interface.
*
**************************************************************************/
#undef INTERFACE
#define INTERFACE IXAudio2SubmixVoice
DECLARE_INTERFACE_(IXAudio2SubmixVoice, IXAudio2Voice)
{
Declare_IXAudio2Voice_Methods();
};
/**************************************************************************
*
* IXAudio2MasteringVoice: Mastering voice management interface.
*
**************************************************************************/
#undef INTERFACE
#define INTERFACE IXAudio2MasteringVoice
DECLARE_INTERFACE_(IXAudio2MasteringVoice, IXAudio2Voice)
{
Declare_IXAudio2Voice_Methods();
STDMETHOD(GetChannelMask) (THIS_ _Out_ DWORD* pChannelmask) PURE;
};
/**************************************************************************
*
* 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
* IXAudio2::RegisterForCallbacks.
*
**************************************************************************/
#undef INTERFACE
#define INTERFACE IXAudio2EngineCallback
DECLARE_INTERFACE(IXAudio2EngineCallback)
{
STDMETHOD_(void, OnProcessingPassStart) (THIS) PURE;
STDMETHOD_(void, OnProcessingPassEnd) (THIS) PURE;
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)
{
STDMETHOD_(void, OnVoiceProcessingPassStart) (THIS_ UINT32 BytesRequired) PURE;
STDMETHOD_(void, OnVoiceProcessingPassEnd) (THIS) PURE;
STDMETHOD_(void, OnStreamEnd) (THIS) PURE;
STDMETHOD_(void, OnBufferStart) (THIS_ void* pBufferContext) PURE;
STDMETHOD_(void, OnBufferEnd) (THIS_ void* pBufferContext) PURE;
STDMETHOD_(void, OnLoopEnd) (THIS_ void* pBufferContext) PURE;
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_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,DeviceId,pEffectChain,StreamCategory) ((This)->lpVtbl->CreateMasteringVoice(This,ppMasteringVoice,InputChannels,InputSampleRate,Flags,DeviceId,pEffectChain,StreamCategory))
#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,Flags) ((This)->lpVtbl->GetState(This,pVoiceState,Flags))
#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
#define IXAudio2MasteringVoice_GetChannelMask(This,pChannelMask) ((This)->lpVtbl->GetChannelMask(This,pChannelMask))
#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 */
static INLINE float XAudio2DecibelsToAmplitudeRatio(float Decibels)
{
return powf(10.0f, Decibels / 20.0f);
}
/* Recover a volume in decibels from an amplitude factor */
static 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 */
static 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 */
static 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, state-variable
* filter types only. Use XAudio2CutoffFrequencyToOnePoleCoefficient() for one-pole filter types.
* Note that the highest CutoffFrequency supported is SampleRate/6.
* Higher values of CutoffFrequency will return XAUDIO2_MAX_FILTER_FREQUENCY.
*/
static 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 */
static INLINE float XAudio2RadiansToCutoffFrequency(float Radians, float SampleRate)
{
return SampleRate * asinf(Radians / 2.0f) / (float)M_PI;
}
/* Convert from filter cutoff frequencies expressed in Hertz to the filter
* coefficients used with XAUDIO2_FILTER_PARAMETERS.Frequency,
* LowPassOnePoleFilter and HighPassOnePoleFilter filter types only.
* Use XAudio2CutoffFrequencyToRadians() for state-variable filter types.
*/
static INLINE float XAudio2CutoffFrequencyToOnePoleCoefficient(float CutoffFrequency, UINT32 SampleRate)
{
if ((UINT32)CutoffFrequency >= SampleRate)
return XAUDIO2_MAX_FILTER_FREQUENCY;
return (1.0f - powf(1.0f - 2.0f * CutoffFrequency / SampleRate, 2.0f));
}
#endif /* #ifdef XAUDIO2_HELPER_FUNCTIONS */
/**************************************************************************
*
* XAudio2Create: Top-level function that creates an XAudio2 instance.
*
* ARGUMENTS:
*
* Flags - Flags specifying the XAudio2 object's behavior.
*
* XAudio2Processor - An XAUDIO2_PROCESSOR value that specifies the
* hardware threads (Xbox) or processors (Windows) that XAudio2
* will use. Note that XAudio2 supports concurrent processing on
* multiple threads, using any combination of XAUDIO2_PROCESSOR
* flags. The values are platform-specific; platform-independent
* code can use XAUDIO2_DEFAULT_PROCESSOR to use the default on
* each platform.
*
**************************************************************************/
#ifdef __cplusplus__
#if (defined XAUDIO2_EXPORT)
/* We're building xaudio2.dll */
#define XAUDIO2_STDAPI extern "C" __declspec(dllexport) HRESULT __stdcall
#else
/* We're an xaudio2 client */
#define XAUDIO2_STDAPI extern "C" __declspec(dllimport) HRESULT __stdcall
#endif
#else
/* Modified for C support */
#if (defined XAUDIO2_EXPORT)
/* We're building xaudio2.dll */
#define XAUDIO2_STDAPI __declspec(dllexport) HRESULT __stdcall
#else
/* We're an xaudio2 client */
#define XAUDIO2_STDAPI __declspec(dllimport) HRESULT __stdcall
#endif
#endif
#if (NTDDI_VERSION >= NTDDI_WIN10_RS5) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
XAUDIO2_STDAPI XAudio2CreateWithVersionInfo(_Outptr_ IXAudio2** ppXAudio2,
UINT32 Flags X2DEFAULT(0),
XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR),
DWORD ntddiVersion X2DEFAULT(NTDDI_VERSION));
static INLINE HRESULT XAudio2Create(_Outptr_ IXAudio2** ppXAudio2,
UINT32 Flags X2DEFAULT(0),
XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR))
{
/* When compiled for RS5 or later, try to invoke XAudio2CreateWithVersionInfo.
* Need to use LoadLibrary in case the app is running on an older OS. */
typedef HRESULT(__stdcall *XAudio2CreateWithVersionInfoFunc)(_Outptr_ IXAudio2**, UINT32, XAUDIO2_PROCESSOR, DWORD);
typedef HRESULT(__stdcall *XAudio2CreateInfoFunc)(_Outptr_ IXAudio2**, UINT32, XAUDIO2_PROCESSOR);
static XAudio2CreateWithVersionInfoFunc
s_pfnAudio2CreateWithVersion = NULL;
static XAudio2CreateInfoFunc s_pfnAudio2Create = NULL;
static HMODULE s_dllInstance = NULL;
if (!s_dllInstance)
{
s_dllInstance = LoadLibraryEx(XAUDIO2_DLL, NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
if (!s_dllInstance)
return HRESULT_FROM_WIN32(GetLastError());
s_pfnAudio2CreateWithVersion = (XAudio2CreateWithVersionInfoFunc)(void*)GetProcAddress(s_dllInstance, "XAudio2CreateWithVersionInfo");
if (!s_pfnAudio2CreateWithVersion)
{
s_pfnAudio2Create = (XAudio2CreateInfoFunc)(void*)GetProcAddress(s_dllInstance, "XAudio2Create");
if (!s_pfnAudio2Create)
return HRESULT_FROM_WIN32(GetLastError());
}
}
if (s_pfnAudio2CreateWithVersion)
return (*s_pfnAudio2CreateWithVersion)(ppXAudio2, Flags, XAudio2Processor, NTDDI_VERSION);
return (*s_pfnAudio2Create)(ppXAudio2, Flags, XAudio2Processor);
}
#else
/* RS4 or older, or not a desktop app */
XAUDIO2_STDAPI XAudio2Create(_Outptr_ IXAudio2** ppXAudio2, UINT32 Flags X2DEFAULT(0),
XAUDIO2_PROCESSOR XAudio2Processor X2DEFAULT(XAUDIO2_DEFAULT_PROCESSOR));
#endif
/* Undo the #pragma pack(push, 1) directive at the top of this file */
#pragma pack(pop)
#endif /* #ifndef GUID_DEFS_ONLY */
#endif /* WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_TV_APP | WINAPI_PARTITION_TV_TITLE) */
#pragma endregion
#endif /* #ifndef __XAUDIO2_INCLUDED__ */
Reference in New Issue View Git Blame Copy Permalink