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70 lines
2.3 KiB
70 lines
2.3 KiB
// Copyright (c) Six Labors.
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// Licensed under the Apache License, Version 2.0.
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using System.Drawing.Imaging;
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using System.IO;
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using BenchmarkDotNet.Attributes;
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Tests;
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using SDImage = System.Drawing.Image;
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namespace SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg
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{
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public class EncodeJpeg
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{
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// System.Drawing needs this.
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private Stream bmpStream;
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private SDImage bmpDrawing;
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private Image<Rgba32> bmpCore;
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[GlobalSetup]
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public void ReadImages()
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{
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if (this.bmpStream == null)
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{
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const string TestImage = TestImages.Bmp.Car;
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this.bmpStream = File.OpenRead(Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, TestImage));
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this.bmpCore = Image.Load<Rgba32>(this.bmpStream);
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this.bmpStream.Position = 0;
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this.bmpDrawing = SDImage.FromStream(this.bmpStream);
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}
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}
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[GlobalCleanup]
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public void Cleanup()
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{
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this.bmpStream.Dispose();
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this.bmpStream = null;
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this.bmpCore.Dispose();
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this.bmpDrawing.Dispose();
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}
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[Benchmark(Baseline = true, Description = "System.Drawing Jpeg")]
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public void JpegSystemDrawing()
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{
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using var stream = new MemoryStream();
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this.bmpDrawing.Save(stream, ImageFormat.Jpeg);
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}
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[Benchmark(Description = "ImageSharp Jpeg")]
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public void JpegCore()
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{
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using var stream = new MemoryStream();
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this.bmpCore.SaveAsJpeg(stream);
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}
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}
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}
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/*
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BenchmarkDotNet=v0.12.1, OS=Windows 10.0.18363.959 (1909/November2018Update/19H2)
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Intel Core i7-8650U CPU 1.90GHz (Kaby Lake R), 1 CPU, 8 logical and 4 physical cores
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.NET Core SDK=3.1.302
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[Host] : .NET Core 3.1.6 (CoreCLR 4.700.20.26901, CoreFX 4.700.20.31603), X64 RyuJIT
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DefaultJob : .NET Core 3.1.6 (CoreCLR 4.700.20.26901, CoreFX 4.700.20.31603), X64 RyuJIT
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| Method | Mean | Error | StdDev | Ratio | RatioSD |
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|---------------------- |---------:|----------:|----------:|------:|--------:|
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| 'System.Drawing Jpeg' | 4.297 ms | 0.0244 ms | 0.0228 ms | 1.00 | 0.00 |
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| 'ImageSharp Jpeg' | 5.286 ms | 0.1034 ms | 0.0967 ms | 1.23 | 0.02 |
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*/
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