mirror of https://github.com/SixLabors/ImageSharp
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
4.0 KiB
84 lines
4.0 KiB
// Copyright (c) Six Labors.
|
|
// Licensed under the Apache License, Version 2.0.
|
|
|
|
using System.IO;
|
|
using BenchmarkDotNet.Attributes;
|
|
using SixLabors.ImageSharp.Formats.Jpeg;
|
|
using SixLabors.ImageSharp.PixelFormats;
|
|
using SixLabors.ImageSharp.Tests;
|
|
using SDImage = System.Drawing.Image;
|
|
using SDSize = System.Drawing.Size;
|
|
|
|
// ReSharper disable InconsistentNaming
|
|
namespace SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg
|
|
{
|
|
/// <summary>
|
|
/// Image-specific Jpeg benchmarks
|
|
/// </summary>
|
|
[Config(typeof(Config.ShortMultiFramework))]
|
|
public class DecodeJpeg_ImageSpecific
|
|
{
|
|
private byte[] jpegBytes;
|
|
|
|
private string TestImageFullPath => Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, this.TestImage);
|
|
|
|
#pragma warning disable SA1115
|
|
[Params(
|
|
TestImages.Jpeg.BenchmarkSuite.Lake_Small444YCbCr,
|
|
TestImages.Jpeg.BenchmarkSuite.BadRstProgressive518_Large444YCbCr,
|
|
|
|
// The scaled result for the large image "ExifGetString750Transform_Huge420YCbCr"
|
|
// is almost the same as the result for Jpeg420Exif,
|
|
// which proves that the execution time for the most common YCbCr 420 path scales linearly.
|
|
// TestImages.Jpeg.BenchmarkSuite.ExifGetString750Transform_Huge420YCbCr,
|
|
TestImages.Jpeg.BenchmarkSuite.Jpeg420Exif_MidSizeYCbCr)]
|
|
|
|
public string TestImage { get; set; }
|
|
|
|
[GlobalSetup]
|
|
public void ReadImages()
|
|
{
|
|
if (this.jpegBytes == null)
|
|
{
|
|
this.jpegBytes = File.ReadAllBytes(this.TestImageFullPath);
|
|
}
|
|
}
|
|
|
|
[Benchmark(Baseline = true, Description = "Decode Jpeg - System.Drawing")]
|
|
public SDSize JpegSystemDrawing()
|
|
{
|
|
using (var memoryStream = new MemoryStream(this.jpegBytes))
|
|
{
|
|
using (var image = SDImage.FromStream(memoryStream))
|
|
{
|
|
return image.Size;
|
|
}
|
|
}
|
|
}
|
|
|
|
[Benchmark(Description = "Decode Jpeg - ImageSharp")]
|
|
public Size JpegImageSharp()
|
|
{
|
|
using (var memoryStream = new MemoryStream(this.jpegBytes))
|
|
{
|
|
using (var image = Image.Load<Rgba32>(memoryStream, new JpegDecoder { IgnoreMetadata = true }))
|
|
{
|
|
return new Size(image.Width, image.Height);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
| Method | TestImage | Mean | Error | StdDev | Ratio | RatioSD | Gen 0 | Gen 1 | Gen 2 | Allocated |
|
|
|------------------------------- |--------------------- |-----------:|------------:|-----------:|------:|--------:|------:|------:|------:|-----------:|
|
|
| 'Decode Jpeg - System.Drawing' | Jpg/b(...)e.jpg [21] | 5.122 ms | 1.3978 ms | 0.0766 ms | 1.00 | 0.00 | - | - | - | 176 B |
|
|
| 'Decode Jpeg - ImageSharp' | Jpg/b(...)e.jpg [21] | 11.991 ms | 0.2514 ms | 0.0138 ms | 2.34 | 0.03 | - | - | - | 15816 B |
|
|
| | | | | | | | | | | |
|
|
| 'Decode Jpeg - System.Drawing' | Jpg/b(...)f.jpg [28] | 14.943 ms | 1.8410 ms | 0.1009 ms | 1.00 | 0.00 | - | - | - | 176 B |
|
|
| 'Decode Jpeg - ImageSharp' | Jpg/b(...)f.jpg [28] | 29.759 ms | 1.5452 ms | 0.0847 ms | 1.99 | 0.01 | - | - | - | 16824 B |
|
|
| | | | | | | | | | | |
|
|
| 'Decode Jpeg - System.Drawing' | Jpg/i(...)e.jpg [43] | 388.229 ms | 382.8946 ms | 20.9877 ms | 1.00 | 0.00 | - | - | - | 216 B |
|
|
| 'Decode Jpeg - ImageSharp' | Jpg/i(...)e.jpg [43] | 276.490 ms | 195.5104 ms | 10.7166 ms | 0.71 | 0.01 | - | - | - | 36022368 B |
|
|
*/
|
|
}
|
|
}
|
|
|