Pass pixel ratio to ol.render.canvas.Immediate constructor

src/ol/render/canvas/canvasimmediate.js

@@ -17,11 +17,12 @@ goog.require('ol.style.Text');
  * @constructor
  * @implements {ol.render.IRender}
  * @param {CanvasRenderingContext2D} context Context.
+ * @param {number} pixelRatio Pixel ratio.
  * @param {ol.Extent} extent Extent.
  * @param {goog.vec.Mat4.AnyType} transform Transform.
  * @struct
  */
-ol.render.canvas.Immediate = function(context, extent, transform) {
+ol.render.canvas.Immediate = function(context, pixelRatio, extent, transform) {
 
   /**
    * @private
@@ -29,6 +30,12 @@ ol.render.canvas.Immediate = function(context, extent, transform) {
    */
   this.context_ = context;
 
+  /**
+   * @private
+   * @type {number}
+   */
+  this.pixelRatio_ = pixelRatio;
+
   /**
    * @private
    * @type {ol.Extent}

src/ol/renderer/canvas/canvaslayerrenderer.js

@@ -85,8 +85,8 @@ ol.renderer.canvas.Layer.prototype.dispatchComposeEvent_ =
   if (layer.hasListener(type)) {
     var transform = goog.isDef(opt_transform) ?
         opt_transform : this.getTransform(frameState);
-    var render = new ol.render.canvas.Immediate(context, frameState.extent,
-        transform);
+    var render = new ol.render.canvas.Immediate(
+        context, frameState.devicePixelRatio, frameState.extent, transform);
     var composeEvent = new ol.render.Event(type, layer, render, frameState,
         context, null);
     layer.dispatchEvent(composeEvent);

src/ol/renderer/canvas/canvasmaprenderer.js

@@ -105,7 +105,7 @@ ol.renderer.canvas.Map.prototype.dispatchComposeEvent_ =
         -view2DState.rotation,
         -view2DState.center[0], -view2DState.center[1]);
     var render = new ol.render.canvas.Immediate(
-        context, frameState.extent, this.transform_);
+        context, devicePixelRatio, frameState.extent, this.transform_);
     var composeEvent = new ol.render.Event(type, map, render, frameState,
         context, null);
     map.dispatchEvent(composeEvent);