test: Add test displayobject_z

displayobject_z is the test for rendering with different tz values
from a few places by the image comparison.

tests/tests/swfs/avm2/displayobject_z/Test.as

@@ -0,0 +1,88 @@
+package {
+    import flash.display.*;
+    import flash.text.*;
+    import flash.geom.*;
+
+    [SWF(width="500", height="500")]
+    public class Test extends Sprite {
+        public function Test() {
+            super();
+
+            stage.scaleMode = StageScaleMode.NO_SCALE;
+
+            testSetZ();
+            trace("");
+
+            testImageComparison();
+            trace("");
+
+        }
+
+        private function testSetZ() : void {
+            var sprite: Sprite = new Sprite();
+
+            trace("// SetZ: default parameters");
+            trace("sprite.z", sprite.z);
+            trace("sprite.transform.matrix", sprite.transform.matrix);
+            trace("sprite.transform.matrix3D", sprite.transform.matrix3D);
+
+            trace("// SetZ: set .z=50");
+            sprite.z = 50;
+            trace("sprite.z", sprite.z);
+            trace("sprite.transform.matrix", sprite.transform.matrix);
+            trace("sprite.transform.matrix3D", sprite.transform.matrix3D);
+            trace("sprite.transform.matrix3D.rawData", sprite.transform.matrix3D.rawData);
+
+            trace("// SetZ: set .transform.matrix3D=null");
+            sprite.transform.matrix3D = null;
+            trace("sprite.z", sprite.z);
+            trace("sprite.transform.matrix", sprite.transform.matrix);
+            trace("sprite.transform.matrix3D", sprite.transform.matrix3D);
+
+            trace("// SetZ: set .transform.matrix=null");
+            sprite.transform.matrix = null;
+            trace("sprite.z", sprite.z);
+            trace("sprite.transform.matrix", sprite.transform.matrix);
+            trace("sprite.transform.matrix3D", sprite.transform.matrix3D);
+            trace("sprite.transform.matrix3D.rawData", sprite.transform.matrix3D.rawData);
+        }
+
+        private function testImageComparison() : void {
+            var s : Sprite = new Sprite();
+            stage.addChild(s);
+
+            for (var i:int = 0; i < 8; i++) {
+                // top-left
+                var bd1 : BitmapData = new BitmapData(100, 100, false, 0xFF00FF - 0x220000 * i);
+                var b1 : Bitmap = new Bitmap(bd1);
+                b1.z = 50 * i;
+                s.addChild(b1);
+
+                // center
+                var bd2 : BitmapData = new BitmapData(100, 100, false, 0xFFFF00 - 0x220000 * i);
+                var b2 : Bitmap = new Bitmap(bd2);
+                b2.x = (stage.stageWidth - bd2.width) / 2;
+                b2.y = (stage.stageHeight - bd2.height) / 2;
+                b2.z = 50 * i;
+                s.addChild(b2);
+
+                // bottom
+                var bd3 : BitmapData = new BitmapData(100, 100, false, 0x00FFFF - 0x000022 * i);
+                var b3 : Bitmap = new Bitmap(bd3);
+                b3.x = (stage.stageWidth - bd3.width) / 2;
+                b3.y = (stage.stageHeight - bd3.height);
+                b3.z = 50 * i;
+                s.addChild(b3);
+            }
+
+            for (var j:int = 0; j < 100; j++) {
+                var bd4 : BitmapData = new BitmapData(100, 100, false, 0x000000);
+                var b4 : Bitmap = new Bitmap(bd4);
+                b4.x = stage.stageWidth - bd4.width;
+                b4.y = stage.stageHeight - bd4.height;
+                b4.z = 500 * j;
+                s.addChild(b4);
+            }
+        }
+    }
+}

tests/tests/swfs/avm2/displayobject_z/output.txt

@@ -0,0 +1,20 @@
+// SetZ: default parameters
+sprite.z 0
+sprite.transform.matrix (a=1, b=0, c=0, d=1, tx=0, ty=0)
+sprite.transform.matrix3D null
+// SetZ: set .z=50
+sprite.z 50
+sprite.transform.matrix null
+sprite.transform.matrix3D [object Matrix3D]
+sprite.transform.matrix3D.rawData 1,0,0,0,0,1,0,0,0,0,1,0,0,0,50,1
+// SetZ: set .transform.matrix3D=null
+sprite.z 0
+sprite.transform.matrix (a=1, b=0, c=0, d=1, tx=0, ty=0)
+sprite.transform.matrix3D null
+// SetZ: set .transform.matrix=null
+sprite.z 0
+sprite.transform.matrix null
+sprite.transform.matrix3D [object Matrix3D]
+sprite.transform.matrix3D.rawData 1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1
+
+

tests/tests/swfs/avm2/displayobject_z/test.toml

@@ -0,0 +1,8 @@
+num_frames = 1
+
+[image_comparisons.output]
+tolerance = 10
+max_outliers = 5000 # FIXME: High max_outliers. FP renders objects with a matrix3D transformation in a different way from 2D objects especially around the object edges.
+
+[player_options]
+with_renderer = { optional = true, sample_count = 4 }