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207 lines
5.6 KiB
C
207 lines
5.6 KiB
C
/* FAudio - XAudio Reimplementation for FNA
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*
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* Copyright (c) 2011-2023 Ethan Lee, Luigi Auriemma, and the MonoGame Team
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*
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* This software is provided 'as-is', without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from
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* the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software in a
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* product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* Ethan "flibitijibibo" Lee <flibitijibibo@flibitijibibo.com>
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*
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*/
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/* This file has no documentation since the MSDN docs are still perfectly fine:
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* https://docs.microsoft.com/en-us/windows/desktop/api/xapo/
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*
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* Of course, the APIs aren't exactly the same since XAPO is super dependent on
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* C++. Instead, we use a struct full of functions to mimic a vtable.
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*
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* The only serious difference is that our FAPO (yes, really) always has the
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* Get/SetParameters function pointers, for simplicity. You can ignore these if
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* your effect does not have parameters, as they will never get called unless
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* it is explicitly requested by the application.
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*/
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#ifndef FAPO_H
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#define FAPO_H
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#include "FAudio.h"
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#define FAPOAPI FAUDIOAPI
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#define FAPOCALL FAUDIOCALL
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Enumerations */
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typedef enum FAPOBufferFlags
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{
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FAPO_BUFFER_SILENT,
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FAPO_BUFFER_VALID
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} FAPOBufferFlags;
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/* Structures */
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#pragma pack(push, 1)
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typedef struct FAPORegistrationProperties
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{
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FAudioGUID clsid;
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int16_t FriendlyName[256]; /* Win32 wchar_t */
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int16_t CopyrightInfo[256]; /* Win32 wchar_t */
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uint32_t MajorVersion;
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uint32_t MinorVersion;
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uint32_t Flags;
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uint32_t MinInputBufferCount;
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uint32_t MaxInputBufferCount;
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uint32_t MinOutputBufferCount;
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uint32_t MaxOutputBufferCount;
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} FAPORegistrationProperties;
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typedef struct FAPOLockForProcessBufferParameters
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{
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const FAudioWaveFormatEx *pFormat;
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uint32_t MaxFrameCount;
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} FAPOLockForProcessBufferParameters;
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typedef struct FAPOProcessBufferParameters
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{
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void* pBuffer;
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FAPOBufferFlags BufferFlags;
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uint32_t ValidFrameCount;
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} FAPOProcessBufferParameters;
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#pragma pack(pop)
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/* Constants */
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#define FAPO_MIN_CHANNELS 1
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#define FAPO_MAX_CHANNELS 64
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#define FAPO_MIN_FRAMERATE 1000
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#define FAPO_MAX_FRAMERATE 200000
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#define FAPO_REGISTRATION_STRING_LENGTH 256
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#define FAPO_FLAG_CHANNELS_MUST_MATCH 0x00000001
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#define FAPO_FLAG_FRAMERATE_MUST_MATCH 0x00000002
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#define FAPO_FLAG_BITSPERSAMPLE_MUST_MATCH 0x00000004
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#define FAPO_FLAG_BUFFERCOUNT_MUST_MATCH 0x00000008
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#define FAPO_FLAG_INPLACE_REQUIRED 0x00000020
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#define FAPO_FLAG_INPLACE_SUPPORTED 0x00000010
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/* FAPO Interface */
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#ifndef FAPO_DECL
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#define FAPO_DECL
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typedef struct FAPO FAPO;
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#endif /* FAPO_DECL */
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typedef int32_t (FAPOCALL * AddRefFunc)(
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void *fapo
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);
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typedef int32_t (FAPOCALL * ReleaseFunc)(
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void *fapo
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);
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typedef uint32_t (FAPOCALL * GetRegistrationPropertiesFunc)(
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void* fapo,
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FAPORegistrationProperties **ppRegistrationProperties
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);
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typedef uint32_t (FAPOCALL * IsInputFormatSupportedFunc)(
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void* fapo,
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const FAudioWaveFormatEx *pOutputFormat,
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const FAudioWaveFormatEx *pRequestedInputFormat,
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FAudioWaveFormatEx **ppSupportedInputFormat
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);
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typedef uint32_t (FAPOCALL * IsOutputFormatSupportedFunc)(
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void* fapo,
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const FAudioWaveFormatEx *pInputFormat,
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const FAudioWaveFormatEx *pRequestedOutputFormat,
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FAudioWaveFormatEx **ppSupportedOutputFormat
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);
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typedef uint32_t (FAPOCALL * InitializeFunc)(
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void* fapo,
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const void* pData,
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uint32_t DataByteSize
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);
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typedef void (FAPOCALL * ResetFunc)(
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void* fapo
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);
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typedef uint32_t (FAPOCALL * LockForProcessFunc)(
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void* fapo,
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uint32_t InputLockedParameterCount,
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const FAPOLockForProcessBufferParameters *pInputLockedParameters,
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uint32_t OutputLockedParameterCount,
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const FAPOLockForProcessBufferParameters *pOutputLockedParameters
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);
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typedef void (FAPOCALL * UnlockForProcessFunc)(
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void* fapo
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);
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typedef void (FAPOCALL * ProcessFunc)(
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void* fapo,
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uint32_t InputProcessParameterCount,
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const FAPOProcessBufferParameters* pInputProcessParameters,
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uint32_t OutputProcessParameterCount,
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FAPOProcessBufferParameters* pOutputProcessParameters,
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int32_t IsEnabled
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);
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typedef uint32_t (FAPOCALL * CalcInputFramesFunc)(
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void* fapo,
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uint32_t OutputFrameCount
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);
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typedef uint32_t (FAPOCALL * CalcOutputFramesFunc)(
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void* fapo,
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uint32_t InputFrameCount
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);
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typedef void (FAPOCALL * SetParametersFunc)(
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void* fapo,
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const void* pParameters,
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uint32_t ParameterByteSize
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);
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typedef void (FAPOCALL * GetParametersFunc)(
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void* fapo,
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void* pParameters,
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uint32_t ParameterByteSize
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);
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struct FAPO
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{
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AddRefFunc AddRef;
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ReleaseFunc Release;
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GetRegistrationPropertiesFunc GetRegistrationProperties;
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IsInputFormatSupportedFunc IsInputFormatSupported;
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IsOutputFormatSupportedFunc IsOutputFormatSupported;
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InitializeFunc Initialize;
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ResetFunc Reset;
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LockForProcessFunc LockForProcess;
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UnlockForProcessFunc UnlockForProcess;
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ProcessFunc Process;
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CalcInputFramesFunc CalcInputFrames;
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CalcOutputFramesFunc CalcOutputFrames;
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SetParametersFunc SetParameters;
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GetParametersFunc GetParameters;
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};
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* FAPO_H */
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/* vim: set noexpandtab shiftwidth=8 tabstop=8: */
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