antonfirsov

private const string RepoPath = @"[...]\Core\.git\";

private static string FixCommitMessage(string m)
{
    return "[SL.Core] " + m.Replace("#", "SixLabors/Core#");
}

static void Main(string[] args)
{
    using var repo = new Repository(RepoPath);

antonfirsov

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace UdpMultipleTest
{
    static class Program
    {
        static void Main(string[] args)

antonfirsov

public void RunThisOnYourDevice()
{
    string inputImagesRoot = "YourRootToImages"; // https://github.com/SixLabors/ImageSharp/tree/master/tests/Images/Input
    string reportFile = Path.Combine("WhateverPathYouCanWriteTo", "Report.txt");

    string[] files = Directory.EnumerateFiles(
            inputImagesRoot,
            "*.*",
            SearchOption.AllDirectories).Where(
            f => Path.GetExtension(f).ToLower() == ".png" || Path.GetExtension(f).ToLower() == ".jpg"

antonfirsov

// Contains a general pixel-format independant color definition
public struct Color
{
	private Rgba64 data; // Could be also Vector4, but that would probably lead to compatibility issues.

	public Color(Rgba64 pixel) { this.data = pixel; }
	public Color(Rgba32 pixel) { this.data.FromRgba32(pixel); }
	public Color(Vector4 vector) { this.data.FromVector4(vector); }

antonfirsov

// No longer a static utility class, but a base class for the pixel-type aware Image<TPixel>.
// Nevertheless, it contains all the static methods, just as before.
public abstract class Image
{
	// The generic methods load pixel-aware images:
	public static Image<TPixel> Load<TPixel>(....);

	// The non-generic methods load pixel-agnostic images:
	public static Image Load(...);

antonfirsov

DecodeJpegParseStreamOnly

Runs JpegDecoderCore.ParseStream() on jpeg420exif.jpg

Setup

BenchmarkDotNet=v0.11.5, OS=Windows 10.0.17134.706 (1803/April2018Update/Redstone4)
Intel Core i7-7700HQ CPU 2.80GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
Frequency=2742189 Hz, Resolution=364.6722 ns, Timer=TSC
.NET Core SDK=2.2.202
  [Host] : .NET Core 2.1.9 (CoreCLR 4.6.27414.06, CoreFX 4.6.27415.01), 64bit RyuJIT

antonfirsov

public unsafe class WriteableBitmapMemoryManager : MemoryManager<Bgra32> {
    private readonly WriteableBitmap bitmap;
    private IBufferByteAccess pixelBuffer;
    private byte* pixelBytes;

    private readonly int length;

    /// <summary>
    /// Initializes a new instance of the <see cref="WriteableBitmapMemoryManager"/> class.
    /// </summary>

antonfirsov

JPEG & Exif

• [2018-09-07] #698 - Allow several invalid data types when reading the exif resolution.
• [2018-09-07] #699 - Fix EXIF overflow and Jpeg decoding
• [2018-09-11] #686 - Ext.DrawImage generalization to support multiple formats. (Experimental)
• [2018-10-04] #722 - Fix #721 ||| incorrect App0 markers
• [2018-10-05] #724 - Decode components in correct order + cleanup + optimizations. ||| interleaved progressive jpegs
• [2018-11-05] #768 - Various Jpeg optimizations
• [2018-12-30] #784 - Jpeg 12 bit support
• [2019-01-06] #801 - #797 throw ImageFormatException when no StartOfFrame marker is found
• [2019-01-09] #804 - Use bounds checks in Huffman ctr. Fix #798

antonfirsov

0.81138	0.24055	-0.05193	0.00000
-0.03204	0.64517	0.44502	-0.05815	0.00000
0.00000	-0.05836	0.44661	0.64748	-0.03216	-0.00357
0.00000	-0.05038	0.23337	0.78718	0.05522	-0.02539
-0.02539	0.05522	0.78718	0.23337	-0.05038	0.00000
-0.00357	-0.03216	0.64748	0.44661	-0.05836	0.00000
0.00000	-0.05836	0.44661	0.64748	-0.03216	-0.00357

antonfirsov

Oh no! Gray16(256) != Gray16(257)
Oh no! Gray16(512) != Gray16(514)
Oh no! Gray16(768) != Gray16(771)
Oh no! Gray16(1024) != Gray16(1028)
Oh no! Gray16(1280) != Gray16(1284)
Oh no! Gray16(1536) != Gray16(1542)
Oh no! Gray16(1792) != Gray16(1799)
Oh no! Gray16(2048) != Gray16(2056)
Oh no! Gray16(2304) != Gray16(2313)