Add interlaced to meta data

README.md

@@ -83,6 +83,7 @@ Image's header has been parsed, metadata contains this information:
 - `palette` image is paletted
 - `color` image is not grayscale
 - `alpha` image contains alpha channel
+- `interlace` image is interlaced
 
 
 ### Event: "parsed"

lib/parser.js

@@ -187,7 +187,8 @@ Parser.prototype._parseIHDR = function(data) {
 
   this._colorType = colorType;
 
-  this.createData(width, height, colorTypeToBppMap[this._colorType], depth, interlace);
+  var bpp = colorTypeToBppMap[this._colorType];
+  this.createData(width, height, bpp, depth, interlace);
 
   this._hasIHDR = true;
 
@@ -195,6 +196,7 @@ Parser.prototype._parseIHDR = function(data) {
     width: width,
     height: height,
     depth: depth,
+    interlace: interlace,
     palette: !!(colorType & constants.COLOR_PALETTE),
     color: !!(colorType & constants.COLOR_COLOR),
     alpha: !!(colorType & constants.COLOR_ALPHA)