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/**************************************************************************
A/V Stream Camera Sample
Copyright (c) 2014, Microsoft Corporation.
File:
PreviewHwSim.cpp
Abstract:
This file contains the implementation of the CPreviewHardwareSimulation
class.
This is a specialization of CHardwareSimulation that provides preview-
specific metadata.
History:
created 5/28/2014
**************************************************************************/
#include "Common.h"
/**************************************************************************
PAGEABLE CODE
**************************************************************************/
#ifdef ALLOC_PRAGMA
#pragma code_seg("PAGE")
#endif // ALLOC_PRAGMA
CPreviewHardwareSimulation::CPreviewHardwareSimulation(
_Inout_ CSensor *Sensor,
_In_ LONG PinID
)
: CHardwareSimulation( Sensor, PinID )
{
PAGED_CODE();
}
CPreviewHardwareSimulation::~CPreviewHardwareSimulation()
{
PAGED_CODE();
}
void
CPreviewHardwareSimulation::
FakeHardware()
/*++
Routine Description:
Simulate an interrupt and what the hardware would have done in the
time since the previous interrupt.
Arguments:
None
Return Value:
None
--*/
{
PAGED_CODE();
// Do normal timer handling.
CHardwareSimulation::FakeHardware();
// Update the zoom.
m_Sensor->UpdateZoom();
}
//
// Helper function that collects the current ISP settings into our metadata
// structure.
//
METADATA_PREVIEWAGGREGATION
CPreviewHardwareSimulation::
GetMetadata()
{
PAGED_CODE();
METADATA_PREVIEWAGGREGATION Metadata;
ISP_FRAME_SETTINGS *pSettings = GetIspSettings();
// Wipe the metadata so all settings will default to "Not Set".
RtlZeroMemory( &Metadata, sizeof(Metadata) );
// FocusState;
m_Sensor->GetFocusState( (KSCAMERA_EXTENDEDPROP_FOCUSSTATE *) &Metadata.FocusState );
// ExposureTime;
Metadata.ExposureTime =
CMetadataLongLong( GetCurrentExposureTime() );
// EVCompensation;
Metadata.EVCompensation = CMetadataEVCompensation(pSettings->EVCompensation.Mode, pSettings->EVCompensation.Value);
// ISOSpeed;
Metadata.ISOSpeed = CMetadataLong(GetCurrentISOSpeed());
DBG_TRACE("ISO=%d, ISO Flags=0x%016llX", Metadata.ISOSpeed.Value, pSettings->ISOMode);
// LensPosition;
Metadata.LensPosition = CMetadataLong( pSettings->FocusSetting.VideoProc.Value.ul );
// FlashOn;
Metadata.FlashOn = CMetadataLong((ULONG) pSettings->FlashMode);
// WhiteBalanceMode;
Metadata.WhiteBalanceMode = CMetadataLong((ULONG) pSettings->WhiteBalanceMode);
// IsoGains;
Metadata.IsoAnalogGain =
CMetadataSRational( GetRandom( (LONG)5000, (LONG)20000 ), (LONG)10000 ); // Some number from 0.5 to 2.0 - for testing.
Metadata.IsoDigitalGain =
CMetadataSRational( GetRandom( (LONG)5000, (LONG)20000 ), (LONG)10000 ); // Some number from 0.5 to 2.0 - for testing.
// SensorFrameRate;
ULARGE_INTEGER FrameRate;
FrameRate.LowPart = 60 * 60 *24;
FrameRate.HighPart = (ULONG) ((ONESECOND * FrameRate.LowPart) / m_TimePerFrame); // compute number of frames per day.
Metadata.SensorFrameRate = CMetadataULongLong( FrameRate.QuadPart );
// WhiteBalanceGains;
Metadata.WhiteBalanceGain_R = // MF_CAPTURE_METADATA_WHITEBALANCE_GAINS
CMetadataSRational( GetRandom( (LONG)5000, (LONG)20000 ), (LONG)10000 ); // Some number from 0.5 to 2.0 - for testing.
Metadata.WhiteBalanceGain_G = // MF_CAPTURE_METADATA_WHITEBALANCE_GAINS
CMetadataSRational( GetRandom( (LONG)5000, (LONG)20000 ), (LONG)10000 ); // Some number from 0.5 to 2.0 - for testing.
Metadata.WhiteBalanceGain_B = // MF_CAPTURE_METADATA_WHITEBALANCE_GAINS
CMetadataSRational( GetRandom( (LONG)5000, (LONG)20000 ), (LONG)10000 ); // Some number from 0.5 to 2.0 - for testing.
return Metadata;
}
//
// Emit metadata here for preview pin.
//
void
CPreviewHardwareSimulation::
EmitMetadata(
_Inout_ PKSSTREAM_HEADER pStreamHeader
)
/*++
Routine Description:
Emit metadata for a photo.
Arguments:
None
Return Value:
Success / Failure
--*/
{
PAGED_CODE();
NT_ASSERT(pStreamHeader);
// Add the normal frame info to the metadata
// Note: This call ensures the KSSTREAM_METADATA_INFO is properly initialized.
CHardwareSimulation::EmitMetadata( pStreamHeader );
if (0 != (pStreamHeader->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_METADATA))
{
PKS_FRAME_INFO pFrameInfo = (PKS_FRAME_INFO)(pStreamHeader + 1);
PKSSTREAM_METADATA_INFO pMetadata = (PKSSTREAM_METADATA_INFO) (pFrameInfo + 1);
ULONG BytesLeft = pMetadata->BufferSize - pMetadata->UsedSize;
if(m_PhotoConfirmationEntry.isRequired())
{
if(BytesLeft < sizeof(KSCAMERA_METADATA_PHOTOCONFIRMATION))
{
//Fatal driver error, should never come here.
NT_ASSERT(FALSE);
return;
}
PKSCAMERA_METADATA_PHOTOCONFIRMATION pPhotoConfirmation =
(PKSCAMERA_METADATA_PHOTOCONFIRMATION) (((PBYTE)pMetadata->SystemVa) + pMetadata->UsedSize);
pPhotoConfirmation->Header.MetadataId = MetadataId_PhotoConfirmation;
pPhotoConfirmation->Header.Size = sizeof(*pPhotoConfirmation);
pPhotoConfirmation->PhotoConfirmationIndex = m_PhotoConfirmationEntry.getIndex();
pMetadata->UsedSize += sizeof(*pPhotoConfirmation);
BytesLeft -= sizeof(*pPhotoConfirmation);
DBG_TRACE("PhotoConfirmation Header.MetadataId = %u", pPhotoConfirmation->Header.MetadataId);
DBG_TRACE("PhotoConfirmation Header.Size = %u", pPhotoConfirmation->Header.Size);
DBG_TRACE("PhotoConfirmation Index = %u", pPhotoConfirmation->PhotoConfirmationIndex);
}
else
{
DBG_TRACE("Normal frame; no photo confirmation metadata.");
}
if( BytesLeft >= sizeof(CAMERA_METADATA_PREVIEWAGGREGATION) )
{
PCAMERA_METADATA_PREVIEWAGGREGATION pPreviewAggregation =
(PCAMERA_METADATA_PREVIEWAGGREGATION) (((PBYTE)pMetadata->SystemVa) + pMetadata->UsedSize);
pPreviewAggregation->Header.MetadataId = (ULONG) MetadataId_Custom_PreviewAggregation;
pPreviewAggregation->Header.Size = sizeof(*pPreviewAggregation);
pPreviewAggregation->Data = GetMetadata();
pMetadata->UsedSize += sizeof(*pPreviewAggregation);
BytesLeft -= sizeof(*pPreviewAggregation);
}
// MF_CAPTURE_METADATA_HISTOGRAM
//
// Generate the entire Histogram metadata blob here.
//
if( BytesLeft >= sizeof(CAMERA_METADATA_HISTOGRAM) )
{
PCAMERA_METADATA_HISTOGRAM pHistogram =
(PCAMERA_METADATA_HISTOGRAM) (((PBYTE)pMetadata->SystemVa) + pMetadata->UsedSize);
ULONG ChannelMask = m_Synthesizer->GetChannelMask();
CExtendedProperty Setting;
m_Sensor->GetHistogram( &Setting );
if( Setting.Flags & KSCAMERA_EXTENDEDPROP_HISTOGRAM_ON &&
ChannelMask != 0 )
{
// Just checking to see if we messed something up here.
NT_ASSERT( pMetadata->BufferSize >= CExtendedMetadata::METADATA_MAX + sizeof(CAMERA_METADATA_HISTOGRAM) );
pHistogram->Header.MetadataId = (ULONG) MetadataId_Custom_Histogram;
pHistogram->Header.Size = sizeof(*pHistogram);
// Acquire the data for every channel.
pHistogram->Data.ChannelMask = ChannelMask;
pHistogram->Data.Height = m_Height;
pHistogram->Data.Width = m_Width;
pHistogram->Data.FourCC = m_Sensor->GetFourCC( m_PinID );
m_Synthesizer->Histogram( pHistogram->Data.P0Data, pHistogram->Data.P1Data, pHistogram->Data.P2Data );
pMetadata->UsedSize += sizeof(*pHistogram);
BytesLeft -= sizeof(*pHistogram);
}
}
CExtendedVidProcSetting FaceDetect;
m_Sensor->GetFaceDetection(&FaceDetect);
if( FaceDetect.Flags & KSCAMERA_EXTENDEDPROP_FACEDETECTION_PREVIEW )
{
DBG_TRACE("PREVIEW");
EmitFaceMetadata(
pStreamHeader,
FaceDetect.GetULONG(),
FaceDetect.Flags & KSCAMERA_EXTENDEDPROP_FACEDETECTION_ADVANCED_MASK);
}
}
}
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