NTSTATUS
CHardwareSimulation::
GeneratePhotoConfirmation(
_In_ ULONG PfsFrameNumber,
_In_ LONGLONG time
)
/*++
Routine Description:
So a photo sim can ask a preview sim for a confirmation frame.
Arguments:
PfsFrameNumber -
The VPS shot number.
time -
The precise time of the associated photo.
Return Value:
None
--*/
{
PAGED_CODE();
KScopedMutex Lock( m_ListLock );
if( PinRunning != m_PinState )
{
return STATUS_DEVICE_NOT_READY;
}
DBG_ENTER("( Index=%d, Time=0x%016llX )", PfsFrameNumber, time );
m_PhotoConfirmationEntry = PHOTOCONFIRMATION_INFO( PfsFrameNumber, time );
// We basically used the previously synthesized preview image
NTSTATUS status = FillScatterGatherBuffers();
//Clean up the photo confiramtion flag
m_PhotoConfirmationEntry = PHOTOCONFIRMATION_INFO();
if(NT_SUCCESS(status))
{
m_Sensor->Interrupt (m_PinID);
}
DBG_LEAVE("() = 0x%08X", status);
return status;
}
void
CImageHardwareSimulation::
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();
// Prevent state-changes during this call.
KScopedMutex Lock(m_ListLock);
m_InterruptTime++;
//
// The hardware can be in a pause state in which case, it issues interrupts
// but does not complete mappings. In this case, don't bother synthesizing
// a frame and doing the work of looking through the mappings table.
//
if( m_PinState == PinRunning )
{
if(m_PinMode == PinBurstMode && m_bTriggered && m_bPastBufferTrigger)
{
CompletePastBuffers();
}
m_Synthesizer->DoSynthesize();
CHAR Text[64];
CExtendedProperty Control;
m_Sensor->GetAdvancedPhoto(&Control);
RtlStringCbPrintfA(Text, sizeof(Text), "Adv: %s", AdvancedPhoto_Text(Control.Flags));
m_Synthesizer->OverlayText( 0, m_Height-38, 1, Text, TRANSPARENT, WHITE );
//
// Fill scatter gather buffers
//
if (!NT_SUCCESS (FillScatterGatherBuffers ()))
{
InterlockedIncrement (PLONG (&m_NumFramesSkipped));
}
}
//
// Issue an interrupt to our hardware sink. This is a "fake" interrupt.
// It will occur at DISPATCH_LEVEL.
//
m_Sensor -> Interrupt (m_PinID);
//
// Schedule the timer for the next interrupt time, if the pin is still running.
//
if( m_PinState == PinRunning )
{
LARGE_INTEGER NextTime;
NextTime.QuadPart = m_StartTime.QuadPart +
(m_TimePerFrame * (m_InterruptTime + 1));
#ifdef ENABLE_TRACING // To keep us from a tight spin when trying to debug this code...
LARGE_INTEGER Now;
KeQuerySystemTime(&Now);
if( Now.QuadPart >= NextTime.QuadPart )
{
NextTime.QuadPart = 0LL - m_TimePerFrame ;
}
#endif
m_IsrTimer.Set( NextTime );
}
}
void
CHardwareSimulation::
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();
KScopedMutex Lock( m_ListLock );
m_InterruptTime++;
//
// The hardware can be in a pause state in which case, it issues interrupts
// but does not complete mappings. In this case, don't bother synthesizing
// a frame and doing the work of looking through the mappings table.
//
if (m_PinState == PinRunning)
{
//
// Generate a "time stamp" just to overlay it onto the capture image.
// It makes it more exciting than bars that do nothing.
//
ULONGLONG time = ConvertQPCtoTimeStamp(NULL);
DBG_TRACE("QPC=0x%016llX", time);
m_Synthesizer->SetFrameNumber( m_InterruptTime );
m_Synthesizer->SetRelativePts( (m_InterruptTime + 1) * m_TimePerFrame );
m_Synthesizer->SetQpcTime( time );
m_Synthesizer->DoSynthesize();
CHAR Text[64];
CExtendedProperty Control;
m_Sensor->GetVideoStabilization( &Control );
RtlStringCbPrintfA(Text, sizeof(Text), "DVS: %s", DVS_Text(Control.Flags));
m_Synthesizer->OverlayText( 0, m_Height-38, 1, Text, BLACK, WHITE );
m_Sensor->GetOpticalImageStabilization( &Control );
RtlStringCbPrintfA(Text, sizeof(Text), "OIS: %s", OIS_Text(Control.Flags));
m_Synthesizer->OverlayText( 0, m_Height-48, 1, Text, BLACK, WHITE );
//
// Fill scatter gather buffers
//
if (!NT_SUCCESS (FillScatterGatherBuffers ()))
{
InterlockedIncrement (PLONG (&m_NumFramesSkipped));
}
}
//
// Issue an interrupt to our hardware sink. This is a "fake" interrupt.
// It will occur at DISPATCH_LEVEL.
//
m_Sensor -> Interrupt (m_PinID);
//
// Schedule the timer for the next interrupt time, if the pin is still running.
//
if( m_PinState == PinRunning )
{
LARGE_INTEGER NextTime;
NextTime.QuadPart = m_StartTime.QuadPart +
(m_TimePerFrame * (m_InterruptTime + 1));
#ifdef ENABLE_TRACING // To keep us from a tight spin when trying to debug this code...
LARGE_INTEGER Now;
KeQuerySystemTime(&Now);
if( Now.QuadPart >= NextTime.QuadPart )
{
NextTime.QuadPart = 0LL - m_TimePerFrame ;
}
#endif
m_IsrTimer.Set( NextTime );
}
}
void
CHardwareSimulation::
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
--*/
{
m_InterruptTime++;
//
// The hardware can be in a pause state in which case, it issues interrupts
// but does not complete mappings. In this case, don't bother synthesizing
// a frame and doing the work of looking through the mappings table.
//
if (m_HardwareState == HardwareRunning) {
//
// Generate a "time stamp" just to overlay it onto the capture image.
// It makes it more exciting than bars that do nothing.
//
LONGLONG PtsRel = ((m_InterruptTime + 1) * m_TimePerFrame);
ULONG Min = (ULONG)(PtsRel / 600000000);
ULONG RemMin = (ULONG)(PtsRel % 600000000);
ULONG Sec = (ULONG)(RemMin / 10000000);
ULONG RemSec = (ULONG)(RemMin % 10000000);
ULONG Hund = (ULONG)(RemSec / 100000);
//
// Synthesize a buffer in scratch space.
//
m_ImageSynth -> SynthesizeBars ();
CHAR Text [256];
Text[0] = '\0';
(void) RtlStringCbPrintfA(Text, sizeof(Text), "%ld:%02ld.%02ld", Min, Sec, Hund);
//
// Overlay a clock onto the scratch space image.
//
m_ImageSynth -> OverlayText (
POSITION_CENTER,
(m_Height - 28),
1,
Text,
BLACK,
WHITE
);
//
// Overlay a counter of skipped frames onto the scratch image.
//
(void) RtlStringCbPrintfA(Text, sizeof(Text), "Skipped: %ld", m_NumFramesSkipped);
m_ImageSynth -> OverlayText (
10,
10,
1,
Text,
TRANSPARENT,
BLUE
);
//
// Fill scatter gather buffers
//
if (!NT_SUCCESS (FillScatterGatherBuffers ())) {
InterlockedIncrement (PLONG (&m_NumFramesSkipped));
}
}
//
// Issue an interrupt to our hardware sink. This is a "fake" interrupt.
// It will occur at DISPATCH_LEVEL.
//
m_HardwareSink -> Interrupt ();
//
// Reschedule the timer if the hardware isn't being stopped.
//
if (!m_StopHardware) {
//
// Reschedule the timer for the next interrupt time.
//
LARGE_INTEGER NextTime;
NextTime.QuadPart = m_StartTime.QuadPart +
(m_TimePerFrame * (m_InterruptTime + 1));
KeSetTimer (&m_IsrTimer, NextTime, &m_IsrFakeDpc);
} else {
//
// If someone is waiting on the hardware to stop, raise the stop
// event and clear the flag.
//
m_StopHardware = FALSE;
KeSetEvent (&m_HardwareEvent, IO_NO_INCREMENT, FALSE);
}
}
