From 3fa67c317b57ed51b046939afbc33ff0275ef252 Mon Sep 17 00:00:00 2001
From: Sebastien ROBERT <sebastien.saigo@gmail.com>
Date: Tue, 21 Dec 2021 11:43:08 +0900
Subject: [PATCH] Moved _shouldRoundPositionAndSize Drawer class member to
 drawTile() function argument

---
 src/drawer.js     | 7 +++++--
 src/tiledimage.js | 4 +---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/drawer.js b/src/drawer.js
index 1b0c87ac..30d7fcf2 100644
--- a/src/drawer.js
+++ b/src/drawer.js
@@ -344,15 +344,18 @@ $.Drawer.prototype = {
      * where <code>rendered</code> is the context with the pre-drawn image.
      * @param {Float} [scale=1] - Apply a scale to tile position and size. Defaults to 1.
      * @param {OpenSeadragon.Point} [translate] A translation vector to offset tile position
+     * @param {Boolean} [shouldRoundPositionAndSize] - Tells whether to round
+     * position and size of tiles supporting alpha channel in non-transparency
+     * context.
      */
-    drawTile: function(tile, drawingHandler, useSketch, scale, translate) {
+    drawTile: function(tile, drawingHandler, useSketch, scale, translate, shouldRoundPositionAndSize) {
         $.console.assert(tile, '[Drawer.drawTile] tile is required');
         $.console.assert(drawingHandler, '[Drawer.drawTile] drawingHandler is required');
 
         if (this.useCanvas) {
             var context = this._getContext(useSketch);
             scale = scale || 1;
-            tile.drawCanvas(context, drawingHandler, scale, translate, this._shouldRoundPositionAndSize);
+            tile.drawCanvas(context, drawingHandler, scale, translate, shouldRoundPositionAndSize);
         } else {
             tile.drawHTML( this.canvas );
         }
diff --git a/src/tiledimage.js b/src/tiledimage.js
index 431bd422..a9d2e9e2 100644
--- a/src/tiledimage.js
+++ b/src/tiledimage.js
@@ -2214,11 +2214,9 @@ function drawTiles( tiledImage, lastDrawn ) {
         shouldRoundPositionAndSize = !isAnimating;
     }
 
-    tiledImage._drawer._shouldRoundPositionAndSize = shouldRoundPositionAndSize;
-
     for (var i = lastDrawn.length - 1; i >= 0; i--) {
         tile = lastDrawn[ i ];
-        tiledImage._drawer.drawTile( tile, tiledImage._drawingHandler, useSketch, sketchScale, sketchTranslate );
+        tiledImage._drawer.drawTile( tile, tiledImage._drawingHandler, useSketch, sketchScale, sketchTranslate, shouldRoundPositionAndSize );
         tile.beingDrawn = true;
 
         if( tiledImage.viewer ){