LT-319: Fix window width bug in RGB and UInt16 shaders

Packages/ohif-cornerstone/client/cornerstone.js

@@ -1,4 +1,4 @@
-/*! cornerstone - v0.9.0 - 2016-02-12 | (c) 2014 Chris Hafey | https://github.com/chafey/cornerstone */
+/*! cornerstone - v0.9.0 - 2016-11-11 | (c) 2014 Chris Hafey | https://github.com/chafey/cornerstone */
 if(typeof cornerstone === 'undefined'){
     cornerstone = {
         internal : {},
@@ -2749,7 +2749,7 @@ if(typeof cornerstone === 'undefined'){
             
             // Apply window settings
             'float center0 = wc - 0.5 - minPixelValue;'+
-            'float width0 = ww - 1.0;'+
+            'float width0 = max(ww, 1.0);' +
             'color = (color - center0) / width0 + 0.5;'+
 
             // RGBA output
@@ -2824,7 +2824,7 @@ if(typeof cornerstone === 'undefined'){
             // Rescale based on slope and window settings
             'intensity = intensity * slope + intercept;'+
             'float center0 = wc - 0.5;'+
-            'float width0 = ww - 1.0;'+
+            'float width0 = max(ww, 1.0);' +
             'intensity = (intensity - center0) / width0 + 0.5;'+
 
             // Clamp intensity