protected Ticks GetRelativeFrameTime(FieldMapping fieldMapping)
{
IEnumerable <FieldMapping> signalMappings = m_mappingCompiler.TraverseSignalMappings(fieldMapping);
MeasurementKey[] keys = signalMappings.SelectMany(mapping => SignalLookup.GetMeasurementKeys(mapping.Expression)).ToArray();
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(fieldMapping);
return(sampleWindow.GetTimestamps(CurrentFrameTime).FirstOrDefault());
}
protected int GetArrayMeasurementCount(ArrayMapping arrayMapping)
{
MeasurementKey[] keys = m_keys[m_keyIndex++];
if (arrayMapping.WindowSize != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
return(sampleWindow.GetTimestamps(m_currentFrameTime).Count);
}
return(keys.Length);
}
protected void PushWindowFrameTime(ArrayMapping arrayMapping)
{
if (arrayMapping.WindowSize != 0.0M)
{
AlignmentCoordinator.SampleWindow sampleWindow = CreateSampleWindow(arrayMapping);
m_lastKeyIndex = m_keyIndex;
m_cachedFrameTime = CurrentFrameTime;
m_cachedFrameTimes = sampleWindow.GetTimestamps(m_currentFrameTime).ToArray();
m_cachedMapping = GetTypeMapping(arrayMapping);
}
else if (arrayMapping.RelativeTime != 0.0M)
{
m_cachedFrameTime = CurrentFrameTime;
CurrentFrameTime = GetRelativeFrameTime(arrayMapping);
m_cachedMappings = m_mappingCompiler.EnumerateTypeMappings(arrayMapping.Expression).ToArray();
}
else
{
m_cachedMappings = m_mappingCompiler.EnumerateTypeMappings(arrayMapping.Expression).ToArray();
}
}