[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [49845] trunk/blender/source/blender/ compositor/operations/COM_InpaintOperation.cpp: avoid divide by zero for the inpaint node.

[Campbell Barton]

Revision: 49845
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=49845
Author:   campbellbarton
Date:     2012-08-12 17:10:56 +0000 (Sun, 12 Aug 2012)
Log Message:
-----------
avoid divide by zero for the inpaint node.

Modified Paths:
--------------
    trunk/blender/source/blender/compositor/operations/COM_InpaintOperation.cpp

Modified: trunk/blender/source/blender/compositor/operations/COM_InpaintOperation.cpp
===================================================================
--- trunk/blender/source/blender/compositor/operations/COM_InpaintOperation.cpp	2012-08-12 16:51:51 UTC (rev 49844)
+++ trunk/blender/source/blender/compositor/operations/COM_InpaintOperation.cpp	2012-08-12 17:10:56 UTC (rev 49845)
@@ -176,11 +176,9 @@
 
 void InpaintSimpleOperation::pix_step(int x, int y)
 {
-	int d = this->mdist(x, y);
-
-	float n = 0;
-
+	const int d = this->mdist(x, y);
 	float pix[3] = {0.0f, 0.0f, 0.0f};
+	float pix_divider = 0.0f;
 
 	for (int dx = -1; dx <= 1; dx++) {
 		for (int dy = -1; dy <= 1; dy++) {
@@ -203,13 +201,16 @@
 					}
 
 					madd_v3_v3fl(pix, this->get_pixel(x_ofs, y_ofs), weight);
-					n += weight;
+					pix_divider += weight;
 				}
 			}
 		}
 	}
 
-	mul_v3_v3fl(this->get_pixel(x, y), pix, 1.0f / n);
+	float *output = this->get_pixel(x, y);
+	if (pix_divider != 0.0f) {
+		mul_v3_v3fl(output, pix, 1.0f / pix_divider);
+	}
 }
 
 void *InpaintSimpleOperation::initializeTileData(rcti *rect)