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67 lines
3.3 KiB
67 lines
3.3 KiB
// Copyright (c) Six Labors.
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// Licensed under the Apache License, Version 2.0.
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using System.Drawing;
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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.IO;
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using SixLabors.ImageSharp.Tests;
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using SDSize = System.Drawing.Size;
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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 DecodeJpegParseStreamOnly
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{
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[Params(TestImages.Jpeg.Baseline.Jpeg420Exif)]
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public string TestImage { get; set; }
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private string TestImageFullPath => Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, this.TestImage);
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private byte[] jpegBytes;
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[GlobalSetup]
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public void Setup()
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{
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this.jpegBytes = File.ReadAllBytes(this.TestImageFullPath);
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}
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[Benchmark(Baseline = true, Description = "System.Drawing FULL")]
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public SDSize JpegSystemDrawing()
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{
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using var memoryStream = new MemoryStream(this.jpegBytes);
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using var image = System.Drawing.Image.FromStream(memoryStream);
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return image.Size;
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}
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[Benchmark(Description = "JpegDecoderCore.ParseStream")]
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public void ParseStreamPdfJs()
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{
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using var memoryStream = new MemoryStream(this.jpegBytes);
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using var bufferedStream = new BufferedReadStream(memoryStream);
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var decoder = new JpegDecoderCore(Configuration.Default, new JpegDecoder { IgnoreMetadata = true });
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decoder.ParseStream(bufferedStream);
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decoder.Dispose();
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}
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// RESULTS (2019 April 23):
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//
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// BenchmarkDotNet=v0.11.3, OS=Windows 10.0.17763.437 (1809/October2018Update/Redstone5)
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// Intel Core i7-6600U CPU 2.60GHz (Skylake), 1 CPU, 4 logical and 2 physical cores
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// .NET Core SDK=2.2.202
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// [Host] : .NET Core 2.1.9 (CoreCLR 4.6.27414.06, CoreFX 4.6.27415.01), 64bit RyuJIT
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// Clr : .NET Framework 4.7.2 (CLR 4.0.30319.42000), 64bit RyuJIT-v4.7.3362.0
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// Core : .NET Core 2.1.9 (CoreCLR 4.6.27414.06, CoreFX 4.6.27415.01), 64bit RyuJIT
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//
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// | Method | Job | Runtime | TestImage | Mean | Error | StdDev | Ratio | RatioSD | Gen 0 | Gen 1 | Gen 2 | Allocated |
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// |---------------------------- |----- |-------- |--------------------- |---------:|---------:|----------:|------:|--------:|---------:|------:|------:|----------:|
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// | 'System.Drawing FULL' | Clr | Clr | Jpg/b(...)f.jpg [28] | 18.69 ms | 8.273 ms | 0.4535 ms | 1.00 | 0.00 | 343.7500 | - | - | 757.89 KB |
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// | JpegDecoderCore.ParseStream | Clr | Clr | Jpg/b(...)f.jpg [28] | 15.76 ms | 4.266 ms | 0.2339 ms | 0.84 | 0.03 | - | - | - | 11.83 KB |
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// | | | | | | | | | | | | | |
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// | 'System.Drawing FULL' | Core | Core | Jpg/b(...)f.jpg [28] | 17.68 ms | 2.711 ms | 0.1486 ms | 1.00 | 0.00 | 343.7500 | - | - | 757.04 KB |
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// | JpegDecoderCore.ParseStream | Core | Core | Jpg/b(...)f.jpg [28] | 14.27 ms | 3.671 ms | 0.2012 ms | 0.81 | 0.00 | - | - | - | 11.76 KB |
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}
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}
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