limby-resize - npm Package Compare versions

Comparing version 0.0.3 to 0.0.5

lib/canvas_resize.js

@@ -0,1 +1,2 @@
+var when = require('when');
 /* 
@@ -5,3 +6,3 @@ * MIT License
  *  https://github.com/danschumann/limby-resize
- *  0.0.1
+ *  0.0.4
  */
@@ -46,3 +47,3 @@ var canvasResize = function(original, canvas) {
   // For every pixel in the original, we tally it up in the new one
-  for (var y1 = 0; y1 < h1; y1++){
+  var nextY = function(y1){
     for (var x1 = 0; x1 < w1; x1++) {
@@ -147,21 +148,37 @@
     };
+
+    if (y1++ < h1)
+      setTimeout(nextY.bind(this, y1), 0); // this allows other processes to tick
+    else
+      done();
+
   };
 
-  // fully distribute the color of pixels that are partially full because their neighbor is transparent
-  for (var i = 0; i < (_data2.length >> 2); i++){
-    if (alphas[i] && alphas[i] < 1) {
-      data2[(i<<2)] /= alphas[i];     // r
-      data2[(i<<2) + 1] /= alphas[i]; // g
-      data2[(i<<2) + 2] /= alphas[i]; // b
+  nextY(0);
+
+  var done = function(){
+
+    // fully distribute the color of pixels that are partially full because their neighbor is transparent
+    for (var i = 0; i < (_data2.length >> 2); i++){
+      if (alphas[i] && alphas[i] < 1) {
+        data2[(i<<2)] /= alphas[i];     // r
+        data2[(i<<2) + 1] /= alphas[i]; // g
+        data2[(i<<2) + 2] /= alphas[i]; // b
+      }
     }
-  }
 
-  // re populate the actual imgData
-  for (var i = 0; i < data2.length; i++){
-    _data2[i] = Math.round(data2[i]);
-  }
+    // re populate the actual imgData
+    for (var i = 0; i < data2.length; i++){
+      _data2[i] = Math.round(data2[i]);
+    }
 
-  var context = canvas.getContext("2d")
-  context.putImageData(img2, 0, 0);
+    var context = canvas.getContext("2d")
+    context.putImageData(img2, 0, 0);
+    deferred.resolve();
 
+  };
+
+  var deferred = when.defer();
+  return deferred.promise
+
 };
@@ -168,0 +185,0 @@

lib/canvas.js

@@ -46,13 +46,15 @@ /*
           resizedCanvas = new Canvas(width, height);
-          canvasResize(canvas, resizedCanvas);
         }
-      };
 
-      var deferred = when.defer();
-      (resizedCanvas || canvas).toBuffer(function(err, buf){
-        return fs.writeFile(options.destination, buf)
-          .then(deferred.resolve).otherwise(deferred.reject);
-      });
+        return when(canvasResize(canvas, resizedCanvas))
+          .then(function(){
+            var deferred = when.defer();
+            (resizedCanvas || canvas).toBuffer(function(err, buf){
+              return fs.writeFile(options.destination, buf)
+                .then(deferred.resolve).otherwise(deferred.reject);
+            });
 
-      return deferred.promise;
+            return deferred.promise;
+          });
+      };
 
@@ -59,0 +61,0 @@ })

package.json

 {
   "name": "limby-resize",
-  "version": "0.0.3",
+  "version": "0.0.5",
   "description": "Wrapper for resizing using ImageMagick OR Canvas.",
@@ -5,0 +5,0 @@ "main": "./limby-resize.js",

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Improved metrics

Total package byte prevSize

15168

increased by2.64%

Lines of code

253

increased by5.42%

No dependency changes