(no commit message)

diff --git a/MagickCore/cache.c b/MagickCore/cache.c
index c1940dd91bba927f3814b12d5fe98e59b39d7991..2ecf48178e736a7eda814d82d12aeade1b007a25 100644 (file)
--- a/MagickCore/cache.c
+++ b/MagickCore/cache.c
@@ -476,12 +476,20 @@ static inline void CopyPixels(Quantum *destination,const Quantum *source,
 #if !defined(MAGICKCORE_OPENMP_SUPPORT) || (MAGICKCORE_QUANTUM_DEPTH <= 8)
   (void) memcpy(destination,source,(size_t) number_pixels*sizeof(*source));
 #else
-  register MagickSizeType
-    i;
+  {
+    register MagickSizeType
+      i;
 
-  #pragma omp parallel for
-  for (i=0; i < number_pixels; i++)
-    destination[i]=source[i];
+    if ((number_pixels*sizeof(*source)) < MagickMaxBufferExtent)
+      {
+        (void) memcpy(destination,source,(size_t) number_pixels*
+          sizeof(*source));
+        return;
+      }
+    #pragma omp parallel for
+    for (i=0; i < number_pixels; i++)
+      destination[i]=source[i];
+  }
 #endif
 }