Add pixelRatio to ol.source.Image#getImage

src/ol/renderer/canvas/canvasimagelayerrenderer.js

@@ -78,8 +78,8 @@ ol.renderer.canvas.ImageLayer.prototype.prepareFrame =
   var hints = frameState.viewHints;
 
   if (!hints[ol.ViewHint.ANIMATING] && !hints[ol.ViewHint.INTERACTING]) {
-    image = imageSource.getImage(
+    image = imageSource.getImage(frameState.extent, viewResolution,
-        frameState.extent, viewResolution, view2DState.projection);
+        frameState.devicePixelRatio, view2DState.projection);
     if (!goog.isNull(image)) {
       var imageState = image.getState();
       if (imageState == ol.ImageState.IDLE) {

src/ol/renderer/dom/domimagelayerrenderer.js

@@ -66,8 +66,8 @@ ol.renderer.dom.ImageLayer.prototype.prepareFrame =
   var hints = frameState.viewHints;
 
   if (!hints[ol.ViewHint.ANIMATING] && !hints[ol.ViewHint.INTERACTING]) {
-    var image_ = imageSource.getImage(
+    var image_ = imageSource.getImage(frameState.extent, viewResolution,
-        frameState.extent, viewResolution, view2DState.projection);
+        frameState.devicePixelRatio, view2DState.projection);
     if (!goog.isNull(image_)) {
       var imageState = image_.getState();
       if (imageState == ol.ImageState.IDLE) {

src/ol/renderer/webgl/webglimagelayerrenderer.js

@@ -95,8 +95,8 @@ ol.renderer.webgl.ImageLayer.prototype.prepareFrame =
   var hints = frameState.viewHints;
 
   if (!hints[ol.ViewHint.ANIMATING] && !hints[ol.ViewHint.INTERACTING]) {
-    var image_ = imageSource.getImage(
+    var image_ = imageSource.getImage(frameState.extent, viewResolution,
-        frameState.extent, viewResolution, view2DState.projection);
+        frameState.devicePixelRatio, view2DState.projection);
     if (!goog.isNull(image_)) {
       var imageState = image_.getState();
       if (imageState == ol.ImageState.IDLE) {

src/ol/source/imagesource.js

@@ -113,6 +113,7 @@ ol.source.Image.prototype.findNearestResolution =
 /**
  * @param {ol.Extent} extent Extent.
  * @param {number} resolution Resolution.
+ * @param {number} pixelRatio Pixel ratio.
  * @param {ol.proj.Projection} projection Projection.
  * @return {ol.Image} Single image.
  */

src/ol/source/imagestaticsource.js

@@ -48,7 +48,7 @@ goog.inherits(ol.source.ImageStatic, ol.source.Image);
  * @inheritDoc
  */
 ol.source.ImageStatic.prototype.getImage =
-    function(extent, resolution, projection) {
+    function(extent, resolution, pixelRatio, projection) {
   if (ol.extent.intersects(extent, this.image_.getExtent())) {
     return this.image_;
   }

src/ol/source/imagewmssource.js

@@ -69,7 +69,7 @@ ol.source.ImageWMS.prototype.getParams = function() {
  * @inheritDoc
  */
 ol.source.ImageWMS.prototype.getImage =
-    function(extent, resolution, projection) {
+    function(extent, resolution, pixelRatio, projection) {
   resolution = this.findNearestResolution(resolution);
 
   var image = this.image_;

src/ol/source/mapguidesource.js

@@ -72,7 +72,7 @@ goog.inherits(ol.source.MapGuide, ol.source.Image);
  * @inheritDoc
  */
 ol.source.MapGuide.prototype.getImage =
-    function(extent, resolution, projection) {
+    function(extent, resolution, pixelRatio, projection) {
   resolution = this.findNearestResolution(resolution);
 
   var image = this.image_;