jpeg-js
diff --git a/‎lib/decoder.js
Lines changed: 8 additions & 10 deletions b/‎lib/decoder.js
Lines changed: 8 additions & 10 deletions
diff --git a/‎test/fixtures/apsara.jpg
48.2 KB b/‎test/fixtures/apsara.jpg
48.2 KB
diff --git a/‎test/fixtures/apsara.rgba
Lines changed: 3208 additions & 0 deletions b/‎test/fixtures/apsara.rgba
Lines changed: 3208 additions & 0 deletions
diff --git a/‎test/index.js
Lines changed: 11 additions & 0 deletions b/‎test/index.js
Lines changed: 11 additions & 0 deletions
@@ -964,16 +964,14 @@ function decode(jpegData) {
   var arr = new Uint8Array(jpegData);
   var decoder = new JpegImage();
   decoder.parse(arr);
-  var data =  decoder.getData(decoder.width, decoder.height);
-  var buf = new Buffer(decoder.width * decoder.height * 4);
-  var n = 0;
-  for (var i = 0; i < buf.length; i++) {
-    buf[i + (i/3 | 0)] = data[n++];
-    if (i % 4 == 3) buf[i] = 255;
-  }
-  return {
-    data: buf,
+
+  var image = {
     width: decoder.width,
-    height: decoder.height
+    height: decoder.height,
+    data: new Buffer(decoder.width * decoder.height * 4)
   };
+  
+  decoder.copyToImageData(image);
+  
+  return image;
 }
@@ -38,6 +38,17 @@ it('should be able to decode a JPEG with RST intervals', function(t) {
   t.end();
 });
 
+it('should be able to decode a grayscale JPEG', function(t) {
+  var jpegData = fixture('apsara.jpg');
+  var rawImageData = jpeg.decode(jpegData);
+  t.equal(rawImageData.width, 580);
+  t.equal(rawImageData.height, 599);
+  var expected = fixture('apsara.rgba');
+  t.deepEqual(rawImageData.data, expected);
+  t.end();
+});
+
+
 it('should be able to encode a JPEG', function (t) {
   var frameData = fixture('grumpycat.rgba');
   var rawImageData = {