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/*++
Copyright (c) Microsoft Corporation All Rights Reserved
Module Name:
minwavert.h
Abstract:
Definition of wavert miniport class.
--*/
#ifndef _SIMPLEAUDIOSAMPLE_MINWAVERT_H_
#define _SIMPLEAUDIOSAMPLE_MINWAVERT_H_
//=============================================================================
// Referenced Forward
//=============================================================================
class CMiniportWaveRTStream;
typedef CMiniportWaveRTStream *PCMiniportWaveRTStream;
//=============================================================================
// Classes
//=============================================================================
///////////////////////////////////////////////////////////////////////////////
// CMiniportWaveRT
//
class CMiniportWaveRT :
public IMiniportWaveRT,
public IMiniportAudioSignalProcessing,
public CUnknown
{
private:
ULONG m_ulSystemAllocated;
ULONG m_ulMaxSystemStreams;
ULONG m_ulMaxOffloadStreams;
ULONG m_ulMaxLoopbackStreams;
// weak ref of running streams.
PCMiniportWaveRTStream * m_SystemStreams;
BOOL m_bGfxEnabled;
PBOOL m_pbMuted;
PLONG m_plVolumeLevel;
PKSDATAFORMAT_WAVEFORMATEXTENSIBLE m_pMixFormat;
PKSDATAFORMAT_WAVEFORMATEXTENSIBLE m_pDeviceFormat;
PCFILTER_DESCRIPTOR m_FilterDesc;
PIN_DEVICE_FORMATS_AND_MODES * m_DeviceFormatsAndModes;
KSPIN_LOCK m_DeviceFormatsAndModesLock; // To serialize access.
KIRQL m_DeviceFormatsAndModesIrql;
ULONG m_DeviceFormatsAndModesCount;
USHORT m_DeviceMaxChannels;
PDRMPORT m_pDrmPort;
DRMRIGHTS m_MixDrmRights;
ULONG m_ulMixDrmContentId;
union {
PVOID m_DeviceContext;
};
protected:
PADAPTERCOMMON m_pAdapterCommon;
ULONG m_DeviceFlags;
eDeviceType m_DeviceType;
PPORTEVENTS m_pPortEvents;
PENDPOINT_MINIPAIR m_pMiniportPair;
public:
NTSTATUS EventHandler_PinCapsChange
(
_In_ PPCEVENT_REQUEST EventRequest
);
NTSTATUS ValidateStreamCreate
(
_In_ ULONG _Pin,
_In_ BOOLEAN _Capture
);
NTSTATUS StreamCreated
(
_In_ ULONG _Pin,
_In_ PCMiniportWaveRTStream _Stream
);
NTSTATUS StreamClosed
(
_In_ ULONG _Pin,
_In_ PCMiniportWaveRTStream _Stream
);
NTSTATUS IsFormatSupported
(
_In_ ULONG _ulPin,
_In_ BOOLEAN _bCapture,
_In_ PKSDATAFORMAT _pDataFormat
);
static NTSTATUS GetAttributesFromAttributeList
(
_In_ const KSMULTIPLE_ITEM *_pAttributes,
_In_ size_t _Size,
_Out_ GUID* _pSignalProcessingMode
);
protected:
NTSTATUS UpdateDrmRights
(
void
);
public:
DECLARE_STD_UNKNOWN();
#pragma code_seg("PAGE")
CMiniportWaveRT(
_In_ PUNKNOWN UnknownAdapter,
_In_ PENDPOINT_MINIPAIR MiniportPair,
_In_opt_ PVOID DeviceContext
)
:CUnknown(0),
m_ulMaxSystemStreams(0),
m_DeviceType(MiniportPair->DeviceType),
m_DeviceContext(DeviceContext),
m_DeviceMaxChannels(MiniportPair->DeviceMaxChannels),
m_DeviceFormatsAndModes(MiniportPair->PinDeviceFormatsAndModes),
m_DeviceFormatsAndModesCount(MiniportPair->PinDeviceFormatsAndModesCount),
m_DeviceFlags(MiniportPair->DeviceFlags),
m_pMiniportPair(MiniportPair)
{
PAGED_CODE();
m_pAdapterCommon = (PADAPTERCOMMON)UnknownAdapter; // weak ref.
if (MiniportPair->WaveDescriptor)
{
RtlCopyMemory(&m_FilterDesc, MiniportPair->WaveDescriptor, sizeof(m_FilterDesc));
//
// Get the max # of pin instances.
//
if (IsRenderDevice())
{
if (m_FilterDesc.PinCount > KSPIN_WAVE_RENDER2_SOURCE)
{
m_ulMaxSystemStreams = m_FilterDesc.Pins[KSPIN_WAVE_RENDER2_SINK_SYSTEM].MaxFilterInstanceCount;
m_ulMaxLoopbackStreams = m_FilterDesc.Pins[KSPIN_WAVE_RENDER2_SINK_LOOPBACK].MaxFilterInstanceCount;
}
else if(m_FilterDesc.PinCount > KSPIN_WAVE_RENDER3_SOURCE)
{
m_ulMaxSystemStreams = m_FilterDesc.Pins[KSPIN_WAVE_RENDER3_SINK_SYSTEM].MaxFilterInstanceCount;
}
}
else
{
//
// capture bridge pin comes first in the enumeration
//
if (m_FilterDesc.PinCount > KSPIN_WAVEIN_HOST)
{
m_ulMaxSystemStreams = m_FilterDesc.Pins[KSPIN_WAVEIN_HOST].MaxFilterInstanceCount;
}
}
}
KeInitializeSpinLock(&m_DeviceFormatsAndModesLock);
m_DeviceFormatsAndModesIrql = PASSIVE_LEVEL;
}
#pragma code_seg()
~CMiniportWaveRT();
IMP_IMiniportWaveRT;
IMP_IMiniportAudioSignalProcessing;
// Friends
friend class CMiniportWaveRTStream;
friend class CMiniportTopologySimpleAudioSample;
friend NTSTATUS PropertyHandler_WaveFilter
(
_In_ PPCPROPERTY_REQUEST PropertyRequest
);
public:
public:
NTSTATUS PropertyHandlerProposedFormat
(
_In_ PPCPROPERTY_REQUEST PropertyRequest
);
NTSTATUS PropertyHandlerProposedFormat2
(
_In_ PPCPROPERTY_REQUEST PropertyRequest
);
PADAPTERCOMMON GetAdapterCommObj()
{
return m_pAdapterCommon;
};
#pragma code_seg()
private:
_IRQL_raises_(DISPATCH_LEVEL)
_Acquires_lock_(m_DeviceFormatsAndModesLock)
_Requires_lock_not_held_(m_DeviceFormatsAndModesLock)
_IRQL_saves_global_(SpinLock, m_DeviceFormatsAndModesIrql)
VOID AcquireFormatsAndModesLock();
_Releases_lock_(m_DeviceFormatsAndModesLock)
_Requires_lock_held_(m_DeviceFormatsAndModesLock)
_IRQL_restores_global_(SpinLock, m_DeviceFormatsAndModesIrql)
VOID ReleaseFormatsAndModesLock();
_Post_satisfies_(return > 0)
ULONG GetPinSupportedDeviceFormats(_In_ ULONG PinId, _Outptr_opt_result_buffer_(return) KSDATAFORMAT_WAVEFORMATEXTENSIBLE **ppFormats);
_Success_(return != 0)
ULONG GetPinSupportedDeviceModes(_In_ ULONG PinId, _Outptr_opt_result_buffer_(return) _On_failure_(_Deref_post_null_) MODE_AND_DEFAULT_FORMAT **ppModes);
#pragma code_seg()
protected:
#pragma code_seg()
BOOL IsRenderDevice()
{
return m_DeviceType == eSpeakerDevice ? TRUE : FALSE;
}
BOOL IsSystemRenderPin(ULONG nPinId);
BOOL IsSystemCapturePin(ULONG nPinId);
BOOL IsBridgePin(ULONG nPinId);
// These three pins are the pins used by the audio engine for host, loopback, and offload.
ULONG GetSystemPinId()
{
ASSERT(IsRenderDevice());
return KSPIN_WAVE_RENDER2_SINK_SYSTEM;
}
};
typedef CMiniportWaveRT *PCMiniportWaveRT;
#endif // _SIMPLEAUDIOSAMPLE_MINWAVERT_H_
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