sf-latency: Write a benchmark for RenderEngine
Bug: 193240340
Test: mmma -j frameworks/native/libs/renderengine/bench/
&& adb push out/.../librenderengine_bench
/data/.../librenderengine_bench
&& adb shell /data/.../librenderengine_bench
Write a benchmark using Google-Benchmark to track the performance of
RenderEngine.
RenderEngineBench.cpp:
- Contains the benchmarks to run.
- Write a helper function that times calls to RenderEngine::drawLayers.
- Write a single benchmark that times drawing a mock homescreen plus a
blur layer, using a blur radius used in practice.
Decode the homescreen into a buffer with CPU support, and then copy it
to one without, which better represents actual use.
- Use RenderEngineType to determine which subclass to benchmark. The
only existing benchmark uses SKIA_GL, since we intend to time just
drawLayers, but future benchmarks will want to time threading aspects
with SKIA_GL_THREADED, and we may add more RenderEngineTypes in the
future.
Codec.cpp:
- Write methods for decoding and encoding a buffer.
Flags.cpp:
- Extra flags that can be passed to the executable.
- --save allows encoding the result to a file to verify it looks as
intended.
- parse --help to describe --save and any future flags specific to
RenderEngineBench.
RenderEngineBench.h:
- header file for methods used across cpp files. Use a single common
header since otherwise we would have several small headers.
homescreen.png:
- Mock homescreen to draw in drawLayers
Change-Id: I81a1a8a30a1c20985bbf066d2ba4d5f1fd1f6dc3
diff --git a/libs/renderengine/benchmark/Flags.cpp b/libs/renderengine/benchmark/Flags.cpp
new file mode 100644
index 0000000..c5d5156
--- /dev/null
+++ b/libs/renderengine/benchmark/Flags.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2021 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 <log/log.h>
+#include <stdio.h>
+#include <string.h>
+
+namespace {
+bool gSave = false;
+}
+
+namespace renderenginebench {
+
+void parseFlagsForHelp(int argc, char** argv) {
+ for (int i = 0; i < argc; i++) {
+ if (!strcmp(argv[i], "--help")) {
+ printf("RenderEngineBench-specific flags:\n");
+ printf("[--save]: Save the output to the device to confirm drawing result.\n");
+ break;
+ }
+ }
+}
+
+void parseFlags(int argc, char** argv) {
+ for (int i = 0; i < argc; i++) {
+ if (!strcmp(argv[i], "--save")) {
+ gSave = true;
+ }
+ }
+}
+
+bool save() {
+ return gSave;
+}
+} // namespace renderenginebench