Revert flutter engine

shell/platform/android/io/flutter/embedding/engine/mutatorsstack/FlutterMutatorView.java

@@ -6,7 +6,6 @@
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Matrix;
-import android.graphics.Paint;
 import android.graphics.Path;
 import android.view.MotionEvent;
 import android.view.View;
@@ -29,7 +28,6 @@ public class FlutterMutatorView extends FrameLayout {
   private int top;
   private int prevLeft;
   private int prevTop;
-  private Paint paint;
 
   private final AndroidTouchProcessor androidTouchProcessor;
 
@@ -44,7 +42,6 @@ public FlutterMutatorView(
     super(context, null);
     this.screenDensity = screenDensity;
     this.androidTouchProcessor = androidTouchProcessor;
-    this.paint = new Paint();
   }
 
   /** Initialize the FlutterMutatorView. */
@@ -145,11 +142,6 @@ public void draw(Canvas canvas) {
       pathCopy.offset(-left, -top);
       canvas.clipPath(pathCopy);
     }
-
-    // Apply the final opacity value on the parent canvas.
-    paint.setAlpha((int) (mutatorsStack.getFinalOpacity() * 255));
-    this.setLayerType(LAYER_TYPE_HARDWARE, paint);
-
     super.draw(canvas);
     canvas.restore();
   }

shell/platform/android/io/flutter/embedding/engine/mutatorsstack/FlutterMutatorsStack.java

@@ -47,7 +47,6 @@ public class FlutterMutator {
     @Nullable private Rect rect;
     @Nullable private Path path;
     @Nullable private float[] radiis;
-    @Nullable private float opacity;
 
     private FlutterMutatorType type;
 
@@ -94,16 +93,6 @@ public FlutterMutator(Matrix matrix) {
       this.matrix = matrix;
     }
 
-    /**
-     * Initialize an opacity mutator.
-     *
-     * @param opacity the opacity to apply.
-     */
-    public FlutterMutator(float opacity) {
-      this.type = FlutterMutatorType.OPACITY;
-      this.opacity = opacity;
-    }
-
     /**
      * Get the mutator type.
      *
@@ -139,29 +128,18 @@ public Path getPath() {
     public Matrix getMatrix() {
       return matrix;
     }
-
-    /**
-     * Get the opacity of the mutator if {@link #getType()} returns FlutterMutatorType.OPACITY.
-     *
-     * @return the opacity if the type is FlutterMutatorType.OPACITY; otherwise null.
-     */
-    public float getOpacity() {
-      return opacity;
-    }
   }
 
   private @NonNull List<FlutterMutator> mutators;
 
   private List<Path> finalClippingPaths;
   private Matrix finalMatrix;
-  private float finalOpacity;
 
   /** Initialize the mutator stack. */
   public FlutterMutatorsStack() {
     this.mutators = new ArrayList<FlutterMutator>();
     finalMatrix = new Matrix();
     finalClippingPaths = new ArrayList<Path>();
-    finalOpacity = 1.f;
   }
 
   /**
@@ -209,17 +187,6 @@ public void pushClipRRect(int left, int top, int right, int bottom, float[] radi
     finalClippingPaths.add(path);
   }
 
-  /**
-   * Push an opacity {@link FlutterMutatorsStack.FlutterMutator} to the stack.
-   *
-   * @param opacity the opacity value.
-   */
-  public void pushOpacity(float opacity) {
-    FlutterMutator mutator = new FlutterMutator(opacity);
-    mutators.add(mutator);
-    finalOpacity *= opacity;
-  }
-
   /**
    * Get a list of all the raw mutators. The 0 index of the returned list is the top of the stack.
    */
@@ -247,9 +214,4 @@ public List<Path> getFinalClippingPaths() {
   public Matrix getFinalMatrix() {
     return finalMatrix;
   }
-
-  /** Returns the final opacity value. Apply this value to the canvas of the view. */
-  public float getFinalOpacity() {
-    return finalOpacity;
-  }
 }

shell/platform/android/platform_view_android_jni_impl.cc

@@ -121,7 +121,6 @@ static jmethodID g_mutators_stack_init_method = nullptr;
 static jmethodID g_mutators_stack_push_transform_method = nullptr;
 static jmethodID g_mutators_stack_push_cliprect_method = nullptr;
 static jmethodID g_mutators_stack_push_cliprrect_method = nullptr;
-static jmethodID g_mutators_stack_push_opacity_method = nullptr;
 
 // Called By Java
 static jlong AttachJNI(JNIEnv* env, jclass clazz, jobject flutterJNI) {
@@ -1020,14 +1019,6 @@ bool PlatformViewAndroid::Register(JNIEnv* env) {
     return false;
   }
 
-  g_mutators_stack_push_opacity_method =
-      env->GetMethodID(g_mutators_stack_class->obj(), "pushOpacity", "(F)V");
-  if (g_mutators_stack_push_opacity_method == nullptr) {
-    FML_LOG(ERROR)
-        << "Could not locate FlutterMutatorsStack.pushOpacity method";
-    return false;
-  }
-
   g_on_display_platform_view_method =
       env->GetMethodID(g_flutter_jni_class->obj(), "onDisplayPlatformView",
                        "(IIIIIIILio/flutter/embedding/engine/mutatorsstack/"
@@ -1462,15 +1453,10 @@ void PlatformViewAndroidJNIImpl::FlutterViewOnDisplayPlatformView(
             (int)rect.bottom(), radiisArray.obj());
         break;
       }
-      case opacity: {
-        float opacity = (*iter)->GetAlphaFloat();
-        env->CallVoidMethod(mutatorsStack, g_mutators_stack_push_opacity_method,
-                            opacity);
-        break;
-      }
       // TODO(cyanglaz): Implement other mutators.
       // https://github.com/flutter/flutter/issues/58426
       case clip_path:
+      case opacity:
         break;
     }
     ++iter;

shell/platform/android/test/io/flutter/FlutterTestSuite.java

@@ -24,7 +24,6 @@
 import io.flutter.embedding.engine.loader.ApplicationInfoLoaderTest;
 import io.flutter.embedding.engine.loader.FlutterLoaderTest;
 import io.flutter.embedding.engine.mutatorsstack.FlutterMutatorViewTest;
-import io.flutter.embedding.engine.mutatorsstack.FlutterMutatorsStackTest;
 import io.flutter.embedding.engine.plugins.shim.ShimPluginRegistryTest;
 import io.flutter.embedding.engine.renderer.FlutterRendererTest;
 import io.flutter.embedding.engine.systemchannels.DeferredComponentChannelTest;
@@ -74,7 +73,6 @@
   FlutterJNITest.class,
   FlutterLaunchTests.class,
   FlutterLoaderTest.class,
-  FlutterMutatorsStackTest.class,
   FlutterMutatorViewTest.class,
   FlutterShellArgsTest.class,
   FlutterRendererTest.class,

shell/platform/android/test/io/flutter/embedding/engine/mutatorsstack/FlutterMutatorViewTest.java

@@ -1,13 +1,10 @@
 package io.flutter.embedding.engine.mutatorsstack;
 
-import static android.view.View.LAYER_TYPE_HARDWARE;
 import static android.view.View.OnFocusChangeListener;
 import static junit.framework.TestCase.*;
 import static org.mockito.Mockito.*;
 
-import android.graphics.Canvas;
 import android.graphics.Matrix;
-import android.graphics.Paint;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
@@ -253,20 +250,4 @@ public ViewTreeObserver getViewTreeObserver() {
     view.unsetOnDescendantFocusChangeListener();
     verify(viewTreeObserver, times(1)).removeOnGlobalFocusChangeListener(activeFocusListener);
   }
-
-  @Test
-  public void draw_opacityApplied() {
-    final FlutterMutatorView view = new FlutterMutatorView(RuntimeEnvironment.systemContext);
-    final FlutterMutatorView spy = spy(view);
-
-    final FlutterMutatorsStack mutatorsStack = new FlutterMutatorsStack();
-    mutatorsStack.pushOpacity(.3f);
-
-    spy.readyToDisplay(mutatorsStack, /*left=*/ 1, /*top=*/ 2, /*width=*/ 0, /*height=*/ 0);
-    spy.draw(new Canvas());
-    verify(spy)
-        .setLayerType(
-            intThat((Integer layerType) -> layerType == LAYER_TYPE_HARDWARE),
-            argThat((Paint paint) -> paint.getAlpha() == (int) (.3f * 255)));
-  }
 }

shell/platform/fuchsia/dart_runner/BUILD.gn

@@ -223,11 +223,21 @@ template("jit_runner_package") {
             rebase_path("$target_gen_dir/kernel/vm_data${product_suffix}.bin")
         dest = "vm_snapshot_data.bin"
       },
+      {
+        path = rebase_path(
+                "$target_gen_dir/kernel/vm_instructions${product_suffix}.bin")
+        dest = "vm_snapshot_instructions.bin"
+      },
       {
         path = rebase_path(
                 "$target_gen_dir/kernel/isolate_data${product_suffix}.bin")
         dest = "isolate_core_snapshot_data.bin"
       },
+      {
+        path = rebase_path(
+                "$target_gen_dir/kernel/isolate_instructions${product_suffix}.bin")
+        dest = "isolate_core_snapshot_instructions.bin"
+      },
     ]
 
     if (!invoker.product) {

shell/platform/fuchsia/dart_runner/dart_component_controller.cc

@@ -206,10 +206,14 @@ bool DartComponentController::SetupFromKernel() {
           isolate_snapshot_data_)) {
     return false;
   }
+  if (!dart_utils::MappedResource::LoadFromNamespace(
+          nullptr, "/pkg/data/isolate_core_snapshot_instructions.bin",
+          isolate_snapshot_instructions_, true /* executable */)) {
+    return false;
+  }
 
-  // The core snapshot does not separate instructions from data.
   if (!CreateIsolate(isolate_snapshot_data_.address(),
-                     nullptr /* isolate_snapshot_instructions */)) {
+                     isolate_snapshot_instructions_.address())) {
     return false;
   }
 
@@ -273,16 +277,16 @@ bool DartComponentController::SetupFromAppSnapshot() {
       return false;
     }
   } else {
-    // TODO(fxb/91200): This code path was broken for over a year and is
-    // probably not used.
     if (!dart_utils::MappedResource::LoadFromNamespace(
             namespace_, data_path_ + "/isolate_snapshot_data.bin",
             isolate_snapshot_data_)) {
       return false;
     }
-    isolate_data = isolate_snapshot_data_.address();
-    // We don't separate instructions from data in 'core' snapshots.
-    isolate_instructions = nullptr;
+    if (!dart_utils::MappedResource::LoadFromNamespace(
+            namespace_, data_path_ + "/isolate_snapshot_instructions.bin",
+            isolate_snapshot_instructions_, true /* executable */)) {
+      return false;
+    }
   }
   return CreateIsolate(isolate_data, isolate_instructions);
 #endif  // defined(AOT_RUNTIME)

shell/platform/fuchsia/dart_runner/dart_component_controller_v2.cc

@@ -214,7 +214,6 @@ bool DartComponentControllerV2::CreateAndBindNamespace() {
 
 bool DartComponentControllerV2::SetUpFromKernel() {
   dart_utils::MappedResource manifest;
-
   if (!dart_utils::MappedResource::LoadFromNamespace(
           namespace_, data_path_ + "/app.dilplist", manifest)) {
     return false;
@@ -225,10 +224,14 @@ bool DartComponentControllerV2::SetUpFromKernel() {
           isolate_snapshot_data_)) {
     return false;
   }
+  if (!dart_utils::MappedResource::LoadFromNamespace(
+          nullptr, "/pkg/data/isolate_core_snapshot_instructions.bin",
+          isolate_snapshot_instructions_, true /* executable */)) {
+    return false;
+  }
 
-  // The core snapshot does not separate instructions from data.
   if (!CreateIsolate(isolate_snapshot_data_.address(),
-                     nullptr /* isolate_snapshot_instructions */)) {
+                     isolate_snapshot_instructions_.address())) {
     return false;
   }
 
@@ -293,16 +296,16 @@ bool DartComponentControllerV2::SetUpFromAppSnapshot() {
       return false;
     }
   } else {
-    // TODO(fxb/91200): This code path was broken for over a year and is
-    // probably not used.
     if (!dart_utils::MappedResource::LoadFromNamespace(
             namespace_, data_path_ + "/isolate_snapshot_data.bin",
             isolate_snapshot_data_)) {
       return false;
     }
-    isolate_data = isolate_snapshot_data_.address();
-    // We don't separate instructions from data in 'core' snapshots.
-    isolate_instructions = nullptr;
+    if (!dart_utils::MappedResource::LoadFromNamespace(
+            namespace_, data_path_ + "/isolate_snapshot_instructions.bin",
+            isolate_snapshot_instructions_, true /* executable */)) {
+      return false;
+    }
   }
   return CreateIsolate(isolate_data, isolate_instructions);
 #endif  // defined(AOT_RUNTIME)

shell/platform/fuchsia/dart_runner/dart_runner.cc

@@ -200,7 +200,13 @@ DartRunner::DartRunner(sys::ComponentContext* context) : context_(context) {
           nullptr, "/pkg/data/vm_snapshot_data.bin", vm_snapshot_data_)) {
     FX_LOG(FATAL, LOG_TAG, "Failed to load vm snapshot data");
   }
+  if (!dart_utils::MappedResource::LoadFromNamespace(
+          nullptr, "/pkg/data/vm_snapshot_instructions.bin",
+          vm_snapshot_instructions_, true /* executable */)) {
+    FX_LOG(FATAL, LOG_TAG, "Failed to load vm snapshot instructions");
+  }
   params.vm_snapshot_data = vm_snapshot_data_.address();
+  params.vm_snapshot_instructions = vm_snapshot_instructions_.address();
 #endif
   params.create_group = IsolateGroupCreateCallback;
   params.shutdown_isolate = IsolateShutdownCallback;