From: Kevin M. Rosenberg <kevin@rosenberg.net>
Date: Sun, 5 Oct 2003 17:23:18 +0000 (+0000)
Subject: r7950: minor efficiency change
X-Git-Tag: debian-4.5.3-3~53
X-Git-Url: http://git.kpe.io/?p=ctsim.git;a=commitdiff_plain;h=87ee1eb8f451d1f1b278c160e5f90ff20301560c

r7950: minor efficiency change
---

diff --git a/libctsim/backprojectors.cpp b/libctsim/backprojectors.cpp
index 581b7ff..ef1ef12 100644
--- a/libctsim/backprojectors.cpp
+++ b/libctsim/backprojectors.cpp
@@ -631,10 +631,10 @@ BackprojectIntDiff::BackprojectView (const double* const filteredProj, const dou
     } else if (interpType == Backprojector::INTERP_LINEAR) {
       for (int iy = 0; iy < ny; iy++, curDetPos += det_dy) {
         const long iDetPos = curDetPos >> scaleShift;
-        const long detRemainder = curDetPos & scaleBitmask;
-        if (iDetPos >= 0 && iDetPos <= iLastDet)
-	    *pImCol++ += filteredProj[iDetPos] + (detRemainder * deltaFilteredProj[iDetPos]);
-	    
+        if (iDetPos >= 0 && iDetPos <= iLastDet) {
+	  const long detRemainder = curDetPos & scaleBitmask;
+	  *pImCol++ += filteredProj[iDetPos] + (detRemainder * deltaFilteredProj[iDetPos]);
+	}
       }	// end for iy
     } else if (interpType == Backprojector::INTERP_CUBIC) {
       for (int iy = 0; iy < ny; iy++, curDetPos += det_dy) {