Added missing typecast.

diff --git a/coders/jp2.c b/coders/jp2.c
index 6a464bbbd058b52a0659f3030633f74be593cbbb..63030715a6bcee1bca4c6396778974402734d0f8 100644 (file)
--- a/coders/jp2.c
+++ b/coders/jp2.c
@@ -1037,7 +1037,8 @@ static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image,
         register int
           *q;
 
-        scale=(double) ((1UL << jp2_image->comps[i].prec)-1)/QuantumRange;
+        scale=(double) (((size_t) 1UL << jp2_image->comps[i].prec)-1)/
+          QuantumRange;
         q=jp2_image->comps[i].data+(y/jp2_image->comps[i].dy*
           image->columns/jp2_image->comps[i].dx+x/jp2_image->comps[i].dx);
         switch (i)