Introduce avxEnabled flag in class AvxAccumulation for consistency reasons.

Author: mtoeltsch

DeepSkyStackerKernel/avx_avg.h

@@ -49,6 +49,7 @@ class AvxAccumulation
 	CMemoryBitmap& outputBitmap;
 	const CTaskInfo& taskInfo;
 	AvxEntropy& avxEntropy;
+	bool avxEnabled;
 public:
 	AvxAccumulation() = delete;
 	AvxAccumulation(const DSSRect& resultRect, const CTaskInfo& tInfo, CMemoryBitmap& tempbm, CMemoryBitmap& outbm, AvxEntropy& entroinfo) noexcept;

DeepSkyStackerKernel/avx_avg_1.cpp

@@ -44,12 +44,13 @@ AvxAccumulation::AvxAccumulation(const DSSRect& resultRect, const CTaskInfo& tIn
 	tempBitmap{ tempbm },
 	outputBitmap{ outbm },
 	taskInfo{ tInfo },
-	avxEntropy{ entroinfo }
+	avxEntropy{ entroinfo },
+	avxEnabled{ AvxSimdCheck::checkSimdAvailability() }
 {}
 
 int AvxAccumulation::accumulate(const int nrStackedBitmaps)
 {
-	if (!AvxSimdCheck::checkSimdAvailability())
+	if (!avxEnabled)
 		return 1;
 	return avxAccumulate(nrStackedBitmaps);
 }