clean up comments and small fixes

src/tiledimage.js

@@ -1417,7 +1417,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Update all tiles that contribute to the current view
      *
      */
@@ -1475,7 +1474,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Updates the opacity of a tile according to the time it has been on screen
      * to perform a fade-in.
      * Updates coverage once a tile is fully opaque.
@@ -1640,7 +1638,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * @param {OpenSeadragon.Tile} tile
      * @param {Boolean} overlap
      * @param {OpenSeadragon.Viewport} viewport
@@ -1694,7 +1691,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Update a single tile at a particular resolution level.
      * @param {Boolean} haveDrawn
      * @param {Boolean} drawLevel
@@ -1842,24 +1838,19 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Obtains a tile at the given location.
      * @param {Number} x
      * @param {Number} y
      * @param {Number} level
      * @param {Number} time
      * @param {Number} numTiles
-     * @param {Number} worldWidth
-     * @param {Number} worldHeight
      * @returns {OpenSeadragon.Tile}
      */
     _getTile: function(
         x, y,
         level,
         time,
-        numTiles,
+        numTiles
-        worldWidth,
-        worldHeight
     ) {
         var xMod,
             yMod,
@@ -1946,7 +1937,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Dispatch a job to the ImageLoader to load the Image for a Tile.
      * @param {OpenSeadragon.Tile} tile
      * @param {Number} time
@@ -1974,7 +1964,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Callback fired when a Tile's Image finished downloading.
      * @param {OpenSeadragon.Tile} tile
      * @param {Number} time
@@ -2030,7 +2019,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * @param {OpenSeadragon.Tile} tile
      * @param {*} data image data, the data sent to ImageJob.prototype.finish(), by default an Image object
      * @param {Number|undefined} cutoff
@@ -2124,7 +2112,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Determines the 'best tiles' from the given 'last best' tiles and the
      * tile in question.
      *
@@ -2147,7 +2134,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Sorts tiles in an array according to distance and visibility.
      *
      * @param {OpenSeadragon.Tile[]} tiles The tiles.
@@ -2171,7 +2157,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Returns true if the given tile provides coverage to lower-level tiles of
      * lower resolution representing the same content. If neither x nor y is
      * given, returns true if the entire visible level provides coverage.
@@ -2220,7 +2205,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Returns true if the given tile is completely covered by higher-level
      * tiles of higher resolution representing the same content. If neither x
      * nor y is given, returns true if the entire visible level is covered.
@@ -2246,7 +2230,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Sets whether the given tile provides coverage or not.
      *
      * @param {Object} coverage - A '3d' dictionary [level][x][y] --> Boolean.
@@ -2273,7 +2256,6 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
 
     /**
      * @private
-     * @inner
      * Resets coverage information for the given level. This should be called
      * after every draw routine. Note that at the beginning of the next draw
      * routine, coverage for every visible tile should be explicitly set.

src/webgldrawer.js

@@ -164,6 +164,7 @@
 
         /**
         * create the HTML element (canvas in this case) that the image will be drawn into
+        * @private
         * @returns {Element} the canvas to draw into
         */
         _createDrawingElement(){
@@ -356,7 +357,8 @@
                 }
 
                 // Fire tiled-image-drawn event.
-                // TODO: do we need to ensure the image has been drawn to the output canvas already? is it possible the image data may not be on the output canvas?
+                // TODO: for discussion: do we need to ensure the image has been drawn to the output canvas already?
+                // Is it possible the image data may not be on the output canvas? Does it matter?
                 if( this.viewer ){
                     /**
                         * Raised when a tiled image is drawn to the canvas. Only valid
@@ -496,6 +498,7 @@
 
         }
 
+        // private
         _setupRenderer(){
             let gl = this._gl;
             if(!gl){
@@ -531,6 +534,7 @@
 
         }
 
+        //private
         _makeFirstPassShaderProgram(){
             let numTextures = this._glNumTextures = this._gl.getParameter(this._gl.MAX_TEXTURE_IMAGE_UNITS);
             let makeMatrixUniforms = () => {
@@ -627,6 +631,7 @@
 
         }
 
+        // private
         _makeSecondPassShaderProgram(){
             const vertexShaderProgram = `
             attribute vec2 a_output_position;
@@ -694,6 +699,7 @@
             gl.uniformMatrix3fv(this._secondPass.uMatrix, false, matrix.values);
         }
 
+        // private
         _resizeRenderer(){
             let gl = this._gl;
             let w = this._renderingCanvas.width;
@@ -717,6 +723,7 @@
 
         }
 
+        // private
         _setupCanvases(){
             let _this = this;
 
@@ -757,6 +764,7 @@
             });
         }
 
+        // private
         _makeQuadVertexBuffer(left, right, top, bottom){
             return new Float32Array([
                 left, bottom,
@@ -767,7 +775,7 @@
                 right, top]);
         }
 
-
+        // private
         _tileReadyHandler(event){
             let tile = event.tile;
             let tiledImage = event.tiledImage;
@@ -820,6 +828,7 @@
 
         }
 
+        // private
         _calculateOverlapFraction(tile, tiledImage){
             let overlap = tiledImage.source.tileOverlap;
             let nativeWidth = tile.sourceBounds.width; // in pixels
@@ -834,6 +843,7 @@
             };
         }
 
+        // private
         _uploadImageData(tileContext){
 
             let gl = this._gl;
@@ -851,11 +861,13 @@
             }
         }
 
+        // private
         _imageUnloadedHandler(event){
             let canvas = event.context2D.canvas;
             this._cleanupImageData(canvas);
         }
 
+        // private
         _cleanupImageData(tileCanvas){
             let textureInfo = this._TextureMap.get(tileCanvas);
             //remove from the map
@@ -867,6 +879,7 @@
             }
 
         }
+
         // private
         // necessary for clip testing to pass (test uses spyOnce(drawer._setClip))
         _setClip(rect){
@@ -874,6 +887,8 @@
             this._clippingContext.rect(rect.x, rect.y, rect.width, rect.height);
             this._clippingContext.clip();
         }
+
+        // private
         _renderToClippingCanvas(item){
 
             this._clippingContext.clearRect(0, 0, this._clippingCanvas.width, this._clippingCanvas.height);