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Diffstat (limited to 'audio/simpleaudiosample/Source/Main/minwavertstream.h')
| -rw-r--r-- | audio/simpleaudiosample/Source/Main/minwavertstream.h | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/audio/simpleaudiosample/Source/Main/minwavertstream.h b/audio/simpleaudiosample/Source/Main/minwavertstream.h new file mode 100644 index 00000000..5545e0d8 --- /dev/null +++ b/audio/simpleaudiosample/Source/Main/minwavertstream.h @@ -0,0 +1,248 @@ +/*++ + +Copyright (c) Microsoft Corporation All Rights Reserved + +Module Name: + + minwavertstream.h + +Abstract: + + Definition of wavert miniport class. +--*/ + +#ifndef _SIMPLEAUDIOSAMPLE_MINWAVERTSTREAM_H_ +#define _SIMPLEAUDIOSAMPLE_MINWAVERTSTREAM_H_ + +#include "savedata.h" +#include "ToneGenerator.h" + +// +// Structure to store notifications events in a protected list +// +typedef struct _NotificationListEntry +{ + LIST_ENTRY ListEntry; + PKEVENT NotificationEvent; +} NotificationListEntry; + +EXT_CALLBACK TimerNotifyRT; + +//============================================================================= +// Referenced Forward +//============================================================================= +class CMiniportWaveRT; +typedef CMiniportWaveRT *PCMiniportWaveRT; + +//============================================================================= +// Classes +//============================================================================= +/////////////////////////////////////////////////////////////////////////////// +// CMiniportWaveRTStream +// +class CMiniportWaveRTStream : + public IDrmAudioStream, + public IMiniportWaveRTStreamNotification, + public IMiniportWaveRTInputStream, + public IMiniportWaveRTOutputStream, + public CUnknown +{ +protected: + PPORTWAVERTSTREAM m_pPortStream; + LIST_ENTRY m_NotificationList; + PEX_TIMER m_pNotificationTimer; + ULONG m_ulNotificationIntervalMs; + ULONG m_ulCurrentWritePosition; + LONG m_IsCurrentWritePositionUpdated; + +public: + DECLARE_STD_UNKNOWN(); + DEFINE_STD_CONSTRUCTOR(CMiniportWaveRTStream); + ~CMiniportWaveRTStream(); + + IMP_IMiniportWaveRTStream; + IMP_IMiniportWaveRTStreamNotification; + IMP_IMiniportWaveRTInputStream; + IMP_IMiniportWaveRTOutputStream; + IMP_IMiniportWaveRT; + IMP_IDrmAudioStream; + + NTSTATUS Init + ( + _In_ PCMiniportWaveRT Miniport, + _In_ PPORTWAVERTSTREAM Stream, + _In_ ULONG Channel, + _In_ BOOLEAN Capture, + _In_ PKSDATAFORMAT DataFormat, + _In_ GUID SignalProcessingMode + ); + + // Friends + friend class CMiniportWaveRT; + friend EXT_CALLBACK TimerNotifyRT; +protected: + CMiniportWaveRT* m_pMiniport; + ULONG m_ulPin; + BOOLEAN m_bCapture; + BOOLEAN m_bUnregisterStream; + ULONG m_ulDmaBufferSize; + BYTE* m_pDmaBuffer; + ULONG m_ulNotificationsPerBuffer; + KSSTATE m_KsState; + PKTIMER m_pTimer; + PRKDPC m_pDpc; + ULONGLONG m_ullPlayPosition; + ULONGLONG m_ullWritePosition; + ULONGLONG m_ullLinearPosition; + ULONGLONG m_ullPresentationPosition; + ULONG m_ulLastOsReadPacket; + ULONG m_ulLastOsWritePacket; + LONGLONG m_llPacketCounter; + ULONGLONG m_ullDmaTimeStamp; + LARGE_INTEGER m_ullPerformanceCounterFrequency; + ULONGLONG m_hnsElapsedTimeCarryForward; + ULONGLONG m_ullLastDPCTimeStamp; + ULONGLONG m_hnsDPCTimeCarryForward; + ULONG m_byteDisplacementCarryForward; + ULONG m_ulDmaMovementRate; + BOOL m_bLfxEnabled; + PBOOL m_pbMuted; + PLONG m_plVolumeLevel; + PLONG m_plPeakMeter; + PWAVEFORMATEXTENSIBLE m_pWfExt; + ULONG m_ulContentId; + CSaveData m_SaveData; + ToneGenerator m_ToneGenerator; + GUID m_SignalProcessingMode; + BOOLEAN m_bEoSReceived; + BOOLEAN m_bLastBufferRendered; + KSPIN_LOCK m_PositionSpinLock; + // Member variable as config params for tone generator + ULONG m_ulHostCaptureToneFrequency; + // If abs(m_dwHostCaptureToneAmplitude) + abs(m_dwHostCaptureToneDCValue) > 100 + // m_dwHostCaptureToneDCValue will be compensated to make the sum equal to 100 + DWORD m_dwHostCaptureToneAmplitude; // must be between -100 to 100 + DWORD m_dwLoopbackCaptureToneAmplitude; // must be between -100 to 100 + DWORD m_dwHostCaptureToneDCOffset; // must be between -100 to 100 + DWORD m_dwLoopbackCaptureToneDCOffset; // must be between -100 to 100 + DWORD m_dwHostCaptureToneInitialPhase; // must be between -31416 to 31416 + DWORD m_dwLoopbackCaptureToneInitialPhase; // must be between -31416 to 31416 + // Member variable as config params for tone generator + +public: + + NTSTATUS GetVolumeChannelCount + ( + _Out_ UINT32* puiChannelCount + ); + + NTSTATUS GetVolumeSteppings + ( + _Out_writes_bytes_(_ui32DataSize) PKSPROPERTY_STEPPING_LONG _pKsPropStepLong, + _In_ UINT32 _ui32DataSize + ); + + NTSTATUS GetChannelVolume + ( + _In_ UINT32 _uiChannel, + _Out_ LONG* _pVolume + ); + + NTSTATUS SetChannelVolume + ( + _In_ UINT32 _uiChannel, + _In_ LONG _Volume + ); + + NTSTATUS GetMuteChannelCount + ( + _Out_ UINT32* puiChannelCount + ); + + NTSTATUS GetMuteSteppings + ( + _Out_writes_bytes_(_ui32DataSize) PKSPROPERTY_STEPPING_LONG _pKsPropStepLong, + _In_ UINT32 _ui32DataSize + ); + + NTSTATUS GetChannelMute + ( + _In_ UINT32 _uiChannel, + _Out_ BOOL* _pbMute + ); + + NTSTATUS SetChannelMute + ( + _In_ UINT32 _uiChannel, + _In_ BOOL _bMute + ); + + //presentation + NTSTATUS GetPresentationPosition + ( + _Out_ KSAUDIO_PRESENTATION_POSITION *_pPresentationPosition + ); + + NTSTATUS SetCurrentWritePosition + ( + _In_ ULONG ulCurrentWritePosition + ); + + + ULONG GetCurrentWaveRTWritePosition() + { + return m_ulCurrentWritePosition; + }; + + // To support simple underrun validation. + BOOL IsCurrentWaveRTWritePositionUpdated() + { + return InterlockedExchange(&m_IsCurrentWritePositionUpdated, 0) ? TRUE : FALSE; + }; + + GUID GetSignalProcessingMode() + { + return m_SignalProcessingMode; + } + +private: + + // + // Helper functions. + // + +#pragma code_seg() + + VOID WriteBytes + ( + _In_ ULONG ByteDisplacement + ); + + VOID ReadBytes + ( + _In_ ULONG ByteDisplacement + ); + + VOID UpdatePosition + ( + _In_ LARGE_INTEGER ilQPC + ); + + NTSTATUS SetCurrentWritePositionInternal + ( + _In_ ULONG ulCurrentWritePosition + ); + + NTSTATUS GetPositions + ( + _Out_opt_ ULONGLONG * _pullLinearBufferPosition, + _Out_opt_ ULONGLONG * _pullPresentationPosition, + _Out_opt_ LARGE_INTEGER * _pliQPCTime + ); + + NTSTATUS ReadRegistrySettings(); + +}; +typedef CMiniportWaveRTStream *PCMiniportWaveRTStream; +#endif // _SIMPLEAUDIOSAMPLE_MINWAVERTSTREAM_H_ + |