From b2cfb457ccff2d3c5887e55fc1bbc57715d374ba Mon Sep 17 00:00:00 2001
From: Ingo Weyrich <heckflosse67@gmx.de>
Date: Tue, 24 Dec 2019 19:07:32 +0100
Subject: [PATCH] multithread darkframe subtraction, #5582

---
 rtengine/rawimagesource.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/rtengine/rawimagesource.cc b/rtengine/rawimagesource.cc
index e7b431141..18fc18f58 100644
--- a/rtengine/rawimagesource.cc
+++ b/rtengine/rawimagesource.cc
@@ -2409,6 +2409,9 @@ void RawImageSource::copyOriginalPixels(const RAWParams &raw, RawImage *src, Raw
 
         if (riDark && W == riDark->get_width() && H == riDark->get_height()) { // This works also for xtrans-sensors, because black[0] to black[4] are equal for these
             StopWatch Stop1("darkframe subtraction");
+#ifdef _OPENMP
+            #pragma omp parallel for
+#endif
             for (int row = 0; row < H; row++) {
                 const int c0 = FC(row, 0);
                 const float black0 = black[(c0 == 1 && !(row & 1) ) ? 3 : c0];