1 // Copyright (C) 2023 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 //! Benchmark for libnativewindow AHardwareBuffer bindings
16
17 #![allow(dead_code)]
18 #![allow(missing_docs)]
19
20 use criterion::*;
21 use nativewindow::*;
22
23 #[inline]
create_720p_buffer() -> HardwareBuffer24 fn create_720p_buffer() -> HardwareBuffer {
25 HardwareBuffer::new(&HardwareBufferDescription::new(
26 1280,
27 720,
28 1,
29 AHardwareBuffer_Format::AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
30 AHardwareBuffer_UsageFlags::AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN,
31 0,
32 ))
33 .unwrap()
34 }
35
criterion_benchmark(c: &mut Criterion)36 fn criterion_benchmark(c: &mut Criterion) {
37 c.bench_function("allocate_deallocate", |b| {
38 b.iter(|| {
39 let buffer = create_720p_buffer();
40 drop(buffer);
41 })
42 });
43
44 let buffer = create_720p_buffer();
45 c.bench_with_input(BenchmarkId::new("id", "buffer"), &buffer, |b, buffer| {
46 b.iter(|| {
47 buffer.id();
48 })
49 });
50
51 // This benchmark exercises getters that need to fetch data via an
52 // underlying call to AHardwareBuffer_describe.
53 c.bench_with_input(BenchmarkId::new("desc", "buffer"), &buffer, |b, buffer| {
54 b.iter(|| {
55 buffer.description().width();
56 })
57 });
58 }
59
60 criterion_group!(benches, criterion_benchmark);
61 criterion_main!(benches);
62