Add benchmark for backdrop blur

Test: this
Flag: EXEMPT test only
Change-Id: If8778fcd2c82a14827447fd8dd2a1b7b5114e244

1 files changed, 67 insertions, 0 deletions

diff --git a/libs/hwui/tests/common/scenes/BackdropBlur.cpp b/libs/hwui/tests/common/scenes/BackdropBlur.cpp
new file mode 100644
index 000000000000..a1133ffe96ef
--- /dev/null
+++ b/libs/hwui/tests/common/scenes/BackdropBlur.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+#include <SkBlendMode.h>
+
+#include "SkImageFilter.h"
+#include "SkImageFilters.h"
+#include "TestSceneBase.h"
+#include "utils/Blur.h"
+
+class BackdropBlurAnimation : public TestScene {
+private:
+    std::unique_ptr<TestScene> listView;
+
+public:
+    explicit BackdropBlurAnimation(const TestScene::Options& opts) {
+        listView.reset(TestScene::testMap()["listview"].createScene(opts));
+    }
+
+    void createContent(int width, int height, Canvas& canvas) override {
+        sp<RenderNode> list = TestUtils::createNode(
+                0, 0, width, height,
+                [this, width, height](RenderProperties& props, Canvas& canvas) {
+                    props.setClipToBounds(false);
+                    listView->createContent(width, height, canvas);
+                });
+
+        canvas.drawRenderNode(list.get());
+
+        int x = width / 8;
+        int y = height / 4;
+        sp<RenderNode> blurNode = TestUtils::createNode(
+                x, y, width - x, height - y, [](RenderProperties& props, Canvas& canvas) {
+                    props.mutableOutline().setRoundRect(0, 0, props.getWidth(), props.getHeight(),
+                                                        dp(16), 1);
+                    props.mutableOutline().setShouldClip(true);
+                    sk_sp<SkImageFilter> blurFilter = SkImageFilters::Blur(
+                            Blur::convertRadiusToSigma(dp(8)), Blur::convertRadiusToSigma(dp(8)),
+                            SkTileMode::kClamp, nullptr, nullptr);
+                    props.mutateLayerProperties().setBackdropImageFilter(blurFilter.get());
+                    canvas.drawColor(0x33000000, SkBlendMode::kSrcOver);
+                });
+
+        canvas.drawRenderNode(blurNode.get());
+    }
+
+    void doFrame(int frameNr) override { listView->doFrame(frameNr); }
+};
+
+static TestScene::Registrar _BackdropBlur(TestScene::Info{
+        "backdropblur", "A rounded rect that does a blur-behind of a sky animation.",
+        [](const TestScene::Options& opts) -> test::TestScene* {
+            return new BackdropBlurAnimation(opts);
+        }});