tests: Add a visual test for equivalence of blur quality/repetition a…

…nd filters/applyFilter

tests/tests/swfs/visual/filters/blur_pass_scaling_test/Test.as

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+package  {
+
+import flash.display.Bitmap;
+import flash.geom.Point;
+import flash.display.BitmapData;
+import flash.geom.Rectangle;
+import flash.display.MovieClip;
+import flash.filters.BlurFilter;
+
+
+public class Test extends MovieClip {
+
+	private static const BLURSIZE = 7;
+
+	function row_1() {
+
+		for (var quality = 0; quality < 10; quality += 1) {
+			var image : BitmapData = new Image();
+
+			var filter = new BlurFilter(BLURSIZE, 1, quality);
+			image.applyFilter(image, new Rectangle(0, 0, 80, 80), new Point(0, 0), filter); // applied only once
+
+			var bm = new Bitmap(image);
+			bm.smoothing = false;
+			bm.y = 10;
+			bm.x = quality * 100 + 10;
+			addChild(bm);
+		}
+	}
+
+	function row_2() {
+
+		for (var applications = 0; applications < 10; applications += 1) {
+			var image : BitmapData = new Image();
+
+			var filter = new BlurFilter(BLURSIZE, 1, 1); // quality is always 1
+			for (var i = 0; i < applications; ++i)
+				image.applyFilter(image, new Rectangle(0, 0, 80, 80), new Point(0, 0), filter);
+
+			var bm = new Bitmap(image);
+			bm.smoothing = false;
+			bm.y = 110;
+			bm.x = i * 100 + 10;
+			addChild(bm);
+		}
+	}
+
+
+	function row_3() {
+
+		for (var quality = 0; quality < 10; quality += 1) {
+			var image : BitmapData = new Image();
+
+			var filter = new BlurFilter(BLURSIZE, 1, quality);
+
+			var bm = new Bitmap(image);
+			bm.smoothing = false;
+			bm.y = 210;
+			bm.x = quality * 100 + 10;
+			bm.filters = [filter]; // applied only once
+			addChild(bm);
+		}
+	}
+
+
+	function row_4() {
+
+		for (var applications = 0; applications < 10; applications += 1) {
+			var image : BitmapData = new Image();
+
+			var filter = new BlurFilter(BLURSIZE, 1, 1); // quality is always 1
+
+			var filters = [];
+
+			for (var i = 0; i < applications; ++i)
+				filters.push(filter);
+
+			var bm = new Bitmap(image);
+			bm.smoothing = false;
+			bm.y = 310;
+			bm.x = i * 100 + 10;
+			bm.filters = filters;
+			addChild(bm);
+		}
+	}
+
+	public function Test() {
+
+		row_1();
+		row_2();
+		row_3();
+		row_4();
+
+
+
+	}
+}
+
+}

tests/tests/swfs/visual/filters/blur_pass_scaling_test/test.toml

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+num_frames = 1
+
+[image_comparison]
+tolerance = 3
+
+[player_options]
+with_renderer = { optional = false, sample_count = 1 }