add Context2d#imageSmoothingEnabled=

examples/resize.js

@@ -15,11 +15,14 @@ img.onerror = function(err){
 };
 
 img.onload = function(){
-  var width = img.width / 2
-    , height = img.height / 2
-    , canvas = new Canvas(width, height)
-    , ctx = canvas.getContext('2d');
+  var width = 100;
+  var height = 100;
+  var canvas = new Canvas(width, height);
+  var ctx = canvas.getContext('2d');
+
+  ctx.imageSmoothingEnabled = true;
   ctx.drawImage(img, 0, 0, width, height);
+
   canvas.toBuffer(function(err, buf){
     fs.writeFile(__dirname + '/resize.png', buf, function(){
       console.log('Resized and saved in %dms', new Date - start);
@@ -27,5 +30,5 @@ img.onload = function(){
   });
 };
 
-img.src = __dirname + '/images/squid.png';
+img.src = process.argv[2] || __dirname + '/images/squid.png';
 

lib/context2d.js

@@ -99,6 +99,27 @@ var parseFont = exports.parseFont = function(str){
   return cache[str] = font;
 };
 
+/**
+ * Enable or disable image smoothing.
+ *
+ * @api public
+ */
+
+Context2d.prototype.__defineSetter__('imageSmoothingEnabled', function(val){
+  this._imageSmoothing = !! val;
+  this.patternQuality = val ? 'best' : 'fast';
+});
+
+/**
+ * Get image smoothing value.
+ *
+ * @api public
+ */
+
+Context2d.prototype.__defineSetter__('imageSmoothingEnabled', function(val){
+  return !! this._imageSmoothing;
+});
+
 /**
  * Create a pattern from `Image` or `Canvas`.
  *