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89 lines
4.7 KiB
89 lines
4.7 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using System.Drawing;
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using System.IO;
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using BenchmarkDotNet.Attributes;
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using SixLabors.ImageSharp.Formats.Jpeg;
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Tests;
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using CoreSize = SixLabors.Primitives.Size;
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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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[Config(typeof(Config.ShortClr))]
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public class DecodeJpeg
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{
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private byte[] jpegBytes;
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private string TestImageFullPath => Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, this.TestImage);
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[Params(TestImages.Jpeg.Baseline.Jpeg420Exif
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//, TestImages.Jpeg.Baseline.Calliphora
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)]
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public string TestImage { get; set; }
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[GlobalSetup]
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public void ReadImages()
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{
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if (this.jpegBytes == null)
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{
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this.jpegBytes = File.ReadAllBytes(this.TestImageFullPath);
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}
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}
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[Benchmark(Baseline = true, Description = "Decode Jpeg - System.Drawing")]
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public Size JpegSystemDrawing()
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{
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using (var memoryStream = new MemoryStream(this.jpegBytes))
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{
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using (var image = SDImage.FromStream(memoryStream))
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{
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return image.Size;
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}
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}
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}
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[Benchmark(Description = "Decode Jpeg - ImageSharp")]
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public CoreSize JpegImageSharp()
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{
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using (var memoryStream = new MemoryStream(this.jpegBytes))
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{
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using (var image = Image.Load<Rgba32>(memoryStream, new JpegDecoder()))
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{
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return new CoreSize(image.Width, image.Height);
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}
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}
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}
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// RESULTS (2018 October):
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//
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// BenchmarkDotNet=v0.10.14, OS=Windows 10.0.17134
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// Intel Core i7-7700HQ CPU 2.80GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
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// Frequency=2742191 Hz, Resolution=364.6719 ns, Timer=TSC
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// .NET Core SDK=2.1.403
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// [Host] : .NET Core 2.1.5 (CoreCLR 4.6.26919.02, CoreFX 4.6.26919.02), 64bit RyuJIT
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// Job-MCUBGX : .NET Framework 4.7.1 (CLR 4.0.30319.42000), 64bit RyuJIT-v4.7.3190.0
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// Job-TZIRPF : .NET Core 2.1.5 (CoreCLR 4.6.26919.02, CoreFX 4.6.26919.02), 64bit RyuJIT
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//
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//
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// Method | Runtime | TestImage | Mean | Error | StdDev | Scaled | ScaledSD | Gen 0 | Allocated |
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// ------------------------------- |-------- |----------------------------- |---------:|----------:|----------:|-------:|---------:|---------:|----------:|
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// 'Decode Jpeg - System.Drawing' | Clr | Jpg/baseline/jpeg420exif.jpg | 17.10 ms | 4.720 ms | 0.2667 ms | 1.00 | 0.00 | 218.7500 | 757.88 KB |
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// 'Decode Jpeg - ImageSharp' | Clr | Jpg/baseline/jpeg420exif.jpg | 57.77 ms | 4.626 ms | 0.2614 ms | 3.38 | 0.04 | 125.0000 | 566.01 KB |
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// | | | | | | | | | |
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// 'Decode Jpeg - System.Drawing' | Core | Jpg/baseline/jpeg420exif.jpg | 17.45 ms | 2.092 ms | 0.1182 ms | 1.00 | 0.00 | 218.7500 | 757.04 KB |
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// 'Decode Jpeg - ImageSharp' | Core | Jpg/baseline/jpeg420exif.jpg | 48.39 ms | 14.562 ms | 0.8228 ms | 2.77 | 0.04 | 125.0000 | 529.96 KB |
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// RESULTS (2018 November 1):
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// Method | Runtime | TestImage | Mean | Error | StdDev | Scaled | ScaledSD | Gen 0 | Allocated |
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// ------------------------------- |-------- |----------------------------- |---------:|----------:|----------:|-------:|---------:|---------:|----------:|
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// 'Decode Jpeg - System.Drawing' | Clr | Jpg/baseline/jpeg420exif.jpg | 17.59 ms | 4.611 ms | 0.2605 ms | 1.00 | 0.00 | 218.7500 | 757.88 KB |
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// 'Decode Jpeg - ImageSharp' | Clr | Jpg/baseline/jpeg420exif.jpg | 55.33 ms | 2.133 ms | 0.1205 ms | 3.15 | 0.04 | 125.0000 | 566.01 KB |
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// | | | | | | | | | |
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// 'Decode Jpeg - System.Drawing' | Core | Jpg/baseline/jpeg420exif.jpg | 17.83 ms | 24.326 ms | 1.3745 ms | 1.00 | 0.00 | 218.7500 | 757.04 KB |
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// 'Decode Jpeg - ImageSharp' | Core | Jpg/baseline/jpeg420exif.jpg | 44.93 ms | 3.088 ms | 0.1745 ms | 2.53 | 0.15 | 125.0000 | 529.96 KB |
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}
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}
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