Implement WebView support for Vulkan using temporary buffer

Draw WebView in an offscreen GL buffer, then import and draw the
buffer with Vulkan.

Bug: 115610873
Test: Passed WebView CTS tests that are part of UiRendering.
Change-Id: Ida137fe9b8652d2a936ec2798b909be7e77b3462

1 files changed, 53 insertions, 0 deletions

diff --git a/libs/hwui/pipeline/skia/FunctorDrawable.h b/libs/hwui/pipeline/skia/FunctorDrawable.h
new file mode 100644
index 000000000000..162d13762e1a
--- /dev/null
+++ b/libs/hwui/pipeline/skia/FunctorDrawable.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "GlFunctorLifecycleListener.h"
+
+#include <SkCanvas.h>
+#include <SkDrawable.h>
+
+#include <utils/Functor.h>
+
+namespace android {
+namespace uirenderer {
+
+namespace skiapipeline {
+
+/**
+ * This drawable wraps a functor enabling it to be recorded into a list
+ * of Skia drawing commands.
+ */
+class FunctorDrawable : public SkDrawable {
+public:
+    FunctorDrawable(Functor* functor, GlFunctorLifecycleListener* listener, SkCanvas* canvas)
+            : mFunctor(functor), mListener(listener), mBounds(canvas->getLocalClipBounds()) {}
+    virtual ~FunctorDrawable() {}
+
+    virtual void syncFunctor() const = 0;
+
+protected:
+    virtual SkRect onGetBounds() override { return mBounds; }
+
+    Functor* mFunctor;
+    sp<GlFunctorLifecycleListener> mListener;
+    const SkRect mBounds;
+};
+
+};  // namespace skiapipeline
+};  // namespace uirenderer
+};  // namespace android