LUT.h: new += operator to sum up per thread histograms; RawImageSource::getRAWHistogram: very small speedup

2016-04-07 18:34:39 +02:00
parent d629006252
commit 1eb37d7730
2 changed files with 69 additions and 28 deletions
--- a/rtengine/LUT.h
+++ b/rtengine/LUT.h
@@ -257,6 +257,17 @@ public:

        return *this;
    }
+
+    // handy to sum up per thread histograms
+    LUT<T> & operator+=(LUT<T> &rhs)
+    {
+        if (rhs.size == this->size) {
+            for(unsigned int i = 0; i < this->size; i++) {
+                data[i] += rhs.data[i];
+            }
+        }
+    }
+
    // use with integer indices
    T& operator[](int index) const
    {