From cc8edb3bf19979b30353085802964ebf691f7a68 Mon Sep 17 00:00:00 2001
From: Nathan Adams <dinnerbone@dinnerbone.com>
Date: Sun, 18 Jun 2023 22:20:14 +0200
Subject: [PATCH] core: Invalidate cacheAsBitmap when various more properties
 change

---
 core/src/display_object.rs                    |  35 ++++++++++++++++++
 .../nested_rotation/expected.png              | Bin 0 -> 6674 bytes
 .../nested_rotation/output.txt                |   0
 .../cache_as_bitmap/nested_rotation/test.fla  | Bin 0 -> 6195 bytes
 .../cache_as_bitmap/nested_rotation/test.swf  | Bin 0 -> 733 bytes
 .../cache_as_bitmap/nested_rotation/test.toml |   7 ++++
 6 files changed, 42 insertions(+)
 create mode 100644 tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/expected.png
 create mode 100644 tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/output.txt
 create mode 100644 tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.fla
 create mode 100644 tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.swf
 create mode 100644 tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.toml

diff --git a/core/src/display_object.rs b/core/src/display_object.rs
index c7598ca5e..c24de764a 100644
--- a/core/src/display_object.rs
+++ b/core/src/display_object.rs
@@ -1024,8 +1024,14 @@ pub trait TDisplayObject<'gc>:
 
     /// Sets the `x` position in pixels of this display object in local space.
     /// Set by the `_x`/`x` ActionScript properties.
+    /// This invalidates any ancestors cacheAsBitmap automatically.
     fn set_x(&self, gc_context: MutationContext<'gc, '_>, x: Twips) {
         self.base_mut(gc_context).set_x(x);
+        if let Some(parent) = self.parent() {
+            // Self-transform changes are automatically handled,
+            // we only want to inform ancestors to avoid unnecessary invalidations for tx/ty
+            parent.invalidate_cached_bitmap(gc_context);
+        }
     }
 
     /// The `y` position in pixels of this display object in local space.
@@ -1036,8 +1042,14 @@ pub trait TDisplayObject<'gc>:
 
     /// Sets the `y` position in pixels of this display object in local space.
     /// Set by the `_y`/`y` ActionScript properties.
+    /// This invalidates any ancestors cacheAsBitmap automatically.
     fn set_y(&self, gc_context: MutationContext<'gc, '_>, y: Twips) {
         self.base_mut(gc_context).set_y(y);
+        if let Some(parent) = self.parent() {
+            // Self-transform changes are automatically handled,
+            // we only want to inform ancestors to avoid unnecessary invalidations for tx/ty
+            parent.invalidate_cached_bitmap(gc_context);
+        }
     }
 
     /// The rotation in degrees this display object in local space.
@@ -1050,9 +1062,15 @@ pub trait TDisplayObject<'gc>:
 
     /// Sets the rotation in degrees this display object in local space.
     /// Set by the `_rotation`/`rotation` ActionScript properties.
+    /// This invalidates any ancestors cacheAsBitmap automatically.
     fn set_rotation(&self, gc_context: MutationContext<'gc, '_>, radians: Degrees) {
         self.base_mut(gc_context).set_rotation(radians);
         self.set_scale_rotation_cached(gc_context);
+        if let Some(parent) = self.parent() {
+            // Self-transform changes are automatically handled,
+            // we only want to inform ancestors to avoid unnecessary invalidations for tx/ty
+            parent.invalidate_cached_bitmap(gc_context);
+        }
     }
 
     /// The X axis scale for this display object in local space.
@@ -1065,9 +1083,15 @@ pub trait TDisplayObject<'gc>:
 
     /// Sets the X axis scale for this display object in local space.
     /// Set by the `_xscale`/`scaleX` ActionScript properties.
+    /// This invalidates any ancestors cacheAsBitmap automatically.
     fn set_scale_x(&self, gc_context: MutationContext<'gc, '_>, value: Percent) {
         self.base_mut(gc_context).set_scale_x(value);
         self.set_scale_rotation_cached(gc_context);
+        if let Some(parent) = self.parent() {
+            // Self-transform changes are automatically handled,
+            // we only want to inform ancestors to avoid unnecessary invalidations for tx/ty
+            parent.invalidate_cached_bitmap(gc_context);
+        }
     }
 
     /// The Y axis scale for this display object in local space.
@@ -1080,9 +1104,15 @@ pub trait TDisplayObject<'gc>:
 
     /// Sets the Y axis scale for this display object in local space.
     /// Returned by the `_yscale`/`scaleY` ActionScript properties.
+    /// This invalidates any ancestors cacheAsBitmap automatically.
     fn set_scale_y(&self, gc_context: MutationContext<'gc, '_>, value: Percent) {
         self.base_mut(gc_context).set_scale_y(value);
         self.set_scale_rotation_cached(gc_context);
+        if let Some(parent) = self.parent() {
+            // Self-transform changes are automatically handled,
+            // we only want to inform ancestors to avoid unnecessary invalidations for tx/ty
+            parent.invalidate_cached_bitmap(gc_context);
+        }
     }
 
     /// Gets the pixel width of the AABB containing this display object in local space.
@@ -1319,6 +1349,7 @@ pub trait TDisplayObject<'gc>:
             }
         }
         self.base_mut(gc_context).set_masker(node);
+        self.invalidate_cached_bitmap(gc_context);
     }
     fn maskee(&self) -> Option<DisplayObject<'gc>> {
         self.base().maskee()
@@ -1335,6 +1366,7 @@ pub trait TDisplayObject<'gc>:
             }
         }
         self.base_mut(gc_context).set_maskee(node);
+        self.invalidate_cached_bitmap(gc_context);
     }
 
     fn scroll_rect(&self) -> Option<Rectangle<Twips>> {
@@ -1380,6 +1412,7 @@ pub trait TDisplayObject<'gc>:
     /// Returned by the `_visible`/`visible` ActionScript properties.
     fn set_visible(&self, gc_context: MutationContext<'gc, '_>, value: bool) {
         self.base_mut(gc_context).set_visible(value);
+        self.invalidate_cached_bitmap(gc_context);
     }
 
     /// The blend mode used when rendering this display object.
@@ -1392,6 +1425,7 @@ pub trait TDisplayObject<'gc>:
     /// Values other than the default `BlendMode::Normal` implicitly cause cache-as-bitmap behavior.
     fn set_blend_mode(&self, gc_context: MutationContext<'gc, '_>, value: BlendMode) {
         self.base_mut(gc_context).set_blend_mode(value);
+        self.invalidate_cached_bitmap(gc_context);
     }
 
     /// The opaque background color of this display object.
@@ -1405,6 +1439,7 @@ pub trait TDisplayObject<'gc>:
     /// is ignored.
     fn set_opaque_background(&self, gc_context: MutationContext<'gc, '_>, value: Option<Color>) {
         self.base_mut(gc_context).set_opaque_background(value);
+        self.invalidate_cached_bitmap(gc_context);
     }
 
     /// Whether this display object represents the root of loaded content.
diff --git a/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/expected.png b/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/expected.png
new file mode 100644
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GIT binary patch
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diff --git a/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/output.txt b/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/output.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.fla b/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.fla
new file mode 100644
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GIT binary patch
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diff --git a/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.swf b/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.swf
new file mode 100644
index 0000000000000000000000000000000000000000..8ef2173c9ea88996eb88e612297228c1a59006d7
GIT binary patch
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diff --git a/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.toml b/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.toml
new file mode 100644
index 000000000..4a2532106
--- /dev/null
+++ b/tests/tests/swfs/visual/cache_as_bitmap/nested_rotation/test.toml
@@ -0,0 +1,7 @@
+num_frames = 3
+
+[image_comparison]
+tolerance = 0
+
+[player_options]
+with_renderer = { optional = false, sample_count = 1 }