Keep the primary cache bitmap aligned with the latest filter output

Tutez64 · MAJigsaw77 · commit 3352f2ddea26 · 2026-03-17T08:37:04.000+02:00
diff --git a/src/openfl/display/DisplayObjectRenderer.hx b/src/openfl/display/DisplayObjectRenderer.hx
@@ -699,7 +699,14 @@ class DisplayObjectRenderer extends EventDispatcher
 							filter.__renderDirty = false;
 						}
 
-						displayObject.__cacheBitmap.__bitmapData = bitmap;
+						if (displayObject.__cacheBitmapData != bitmap)
+						{
+							cacheBitmap = displayObject.__cacheBitmapData;
+							displayObject.__cacheBitmapData = bitmap;
+							displayObject.__cacheBitmapData2 = cacheBitmap;
+						}
+
+						displayObject.__cacheBitmap.__bitmapData = displayObject.__cacheBitmapData;
 					}
 
 					parentRenderer.__blendMode = NORMAL;

Original file line number	Diff line number	Diff line change
`@@ -699,7 +699,14 @@ class DisplayObjectRenderer extends EventDispatcher`
`699`	`699`	`filter.__renderDirty = false;`
`700`	`700`	`}`
`701`	`701`
`702`		`- displayObject.__cacheBitmap.__bitmapData = bitmap;`
	`702`	`+ if (displayObject.__cacheBitmapData != bitmap)`
	`703`	`+ {`
	`704`	`+ cacheBitmap = displayObject.__cacheBitmapData;`
	`705`	`+ displayObject.__cacheBitmapData = bitmap;`
	`706`	`+ displayObject.__cacheBitmapData2 = cacheBitmap;`
	`707`	`+ }`
	`708`	`+`
	`709`	`+ displayObject.__cacheBitmap.__bitmapData = displayObject.__cacheBitmapData;`
`703`	`710`	`}`
`704`	`711`
`705`	`712`	`parentRenderer.__blendMode = NORMAL;`