diff --git a/lib/ext/render.js b/lib/ext/render.js
index eebe912..a51f458 100644
--- a/lib/ext/render.js
+++ b/lib/ext/render.js
@@ -673,5 +673,39 @@ exports.requireExt = function(display, callback)
               BlendMaximum:    0x3e
             };
 
+          ext.PolyEdge = {
+            Sharp: 0,
+            Smooth: 1
+          };
+
+          ext.PolyMode = {
+            Precise: 0,
+            Imprecise: 1
+          };
+
+          ext.Repeat = {
+            None: 0,
+            Normal: 1,
+            Pad: 2,
+            Reflect: 3
+          };
+
+          ext.Subpixel = {
+            Unknown:       0
+            HorizontalRGB: 1,
+            HorizontalBGR: 2,
+            VerticalRGB	 : 3,
+            VerticalBGR  : 4,
+            None         : 5
+          };
+
+          ext.Filters = {
+            Nearest: 'nearest',
+            Bilinear: 'bilinear',
+            Convolution: 'convolution',
+            Fast: 'fast',
+            Good: 'good',
+            Best: 'best'
+          };
       });
 }