notfire/Iceshrimp.NET
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

[backend] Move identicon generation to ImageSharp (ISH-42)

Browse source 
This saves ~9MB of disk space over MAUI/SkiaSharp.
This commit is contained in:
Laura Hausmann 2024-02-11 23:52:56 +01:00
parent 70292d3458
commit 059f059f36
No known key found for this signature in database
GPG key ID: D044E84C5BE01605
2 changed files with 50 additions and 58 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

104
Iceshrimp.Backend/Controllers/IdenticonController.cs
View file

@ -2,8 +2,10 @@ using System.IO.Hashing;
using System.Text;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Maui.Graphics;
using Microsoft.Maui.Graphics.Skia;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Drawing.Processing;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
namespace Iceshrimp.Backend.Controllers;
@ -11,24 +13,19 @@ namespace Iceshrimp.Backend.Controllers;
[EnableCors("drive")]
[Route("/identicon/{id}")]
public class IdenticonController : Controller {
public IActionResult GetIdenticon(string id) {
using var bitmap = new SkiaBitmapExportContext(Size, Size, 1.0f);
public async Task GetIdenticon(string id) {
using var image = new Image<Rgb24>(Size, Size);
var canvas = bitmap.Canvas;
var random = new Random((int)XxHash32.HashToUInt32(Encoding.UTF8.GetBytes(id)));
var color = Colors[random.Next(0, Colors.Count - 1)];
var gradient = new LinearGradientPaint(new Point(0, 0), new Point(1, 1)) {
StartColor = color.start,
EndColor = color.end
};
var gradient = new LinearGradientBrush(new Point(0, 0), new Point(Size, Size), GradientRepetitionMode.None,
new ColorStop(0, color.start), new ColorStop(1, color.end));
var rect = new RectF(0, 0, Size, Size);
canvas.SetFillPaint(gradient, rect);
canvas.FillRectangle(rect);
var paint = new SolidPaint(Microsoft.Maui.Graphics.Colors.White);
canvas.SetFillPaint(paint, rect);
image.Mutate(p => p.Fill(gradient));
var paint = new SolidBrush(Color.White);
var side = new bool[SideN, CellCount];
var center = new bool[CellCount];
@ -60,16 +57,13 @@ public class IdenticonController : Controller {
var actualX = Margin + CellSize * i;
var actualY = Margin + CellSize * j;
canvas.FillRectangle(new Rect(actualX, actualY, CellSize, CellSize));
image.Mutate(p => p.Fill(paint, new Rectangle(actualX, actualY, CellSize, CellSize)));
}
}
var stream = new MemoryStream();
bitmap.WriteToStream(stream);
stream.Seek(0, SeekOrigin.Begin);
Response.Headers.CacheControl = "max-age=31536000, immutable";
return File(stream, "image/png");
Response.Headers.ContentType = "image/png";
await image.SaveAsPngAsync(Response.Body);
}
#region Color definitions & Constants
@ -82,41 +76,41 @@ public class IdenticonController : Controller {
private const int SideN = CellCount / 2;
private static readonly List<(Color start, Color end)> Colors = [
(new Color(235, 111, 146), new Color(180, 99, 122)),
(new Color(246, 193, 119), new Color(234, 157, 52)),
(new Color(235, 188, 186), new Color(215, 130, 126)),
(new Color(156, 207, 216), new Color(86, 148, 159)),
(new Color(196, 167, 231), new Color(144, 122, 169)),
(new Color(235, 111, 146), new Color(246, 193, 119)),
(new Color(235, 111, 146), new Color(235, 188, 186)),
(new Color(235, 111, 146), new Color(49, 116, 143)),
(new Color(235, 111, 146), new Color(156, 207, 216)),
(new Color(235, 111, 146), new Color(196, 167, 231)),
(new Color(246, 193, 119), new Color(235, 111, 146)),
(new Color(246, 193, 119), new Color(235, 188, 186)),
(new Color(246, 193, 119), new Color(49, 116, 143)),
(new Color(246, 193, 119), new Color(156, 207, 216)),
(new Color(246, 193, 119), new Color(196, 167, 231)),
(new Color(235, 188, 186), new Color(235, 111, 146)),
(new Color(235, 188, 186), new Color(246, 193, 119)),
(new Color(235, 188, 186), new Color(49, 116, 143)),
(new Color(235, 188, 186), new Color(156, 207, 216)),
(new Color(235, 188, 186), new Color(196, 167, 231)),
(new Color(49, 116, 143), new Color(235, 111, 146)),
(new Color(49, 116, 143), new Color(246, 193, 119)),
(new Color(49, 116, 143), new Color(235, 188, 186)),
(new Color(49, 116, 143), new Color(156, 207, 216)),
(new Color(49, 116, 143), new Color(196, 167, 231)),
(new Color(156, 207, 216), new Color(235, 111, 146)),
(new Color(156, 207, 216), new Color(246, 193, 119)),
(new Color(156, 207, 216), new Color(235, 188, 186)),
(new Color(156, 207, 216), new Color(49, 116, 143)),
(new Color(156, 207, 216), new Color(196, 167, 231)),
(new Color(196, 167, 231), new Color(235, 111, 146)),
(new Color(196, 167, 231), new Color(246, 193, 119)),
(new Color(196, 167, 231), new Color(235, 188, 186)),
(new Color(196, 167, 231), new Color(49, 116, 143)),
(new Color(196, 167, 231), new Color(156, 207, 216))
(new Color(new Rgb24(235, 111, 146)), new Color(new Rgb24(180, 99, 122))),
(new Color(new Rgb24(246, 193, 119)), new Color(new Rgb24(234, 157, 52))),
(new Color(new Rgb24(235, 188, 186)), new Color(new Rgb24(215, 130, 126))),
(new Color(new Rgb24(156, 207, 216)), new Color(new Rgb24(86, 148, 159))),
(new Color(new Rgb24(196, 167, 231)), new Color(new Rgb24(144, 122, 169))),
(new Color(new Rgb24(235, 111, 146)), new Color(new Rgb24(246, 193, 119))),
(new Color(new Rgb24(235, 111, 146)), new Color(new Rgb24(235, 188, 186))),
(new Color(new Rgb24(235, 111, 146)), new Color(new Rgb24(49, 116, 143))),
(new Color(new Rgb24(235, 111, 146)), new Color(new Rgb24(156, 207, 216))),
(new Color(new Rgb24(235, 111, 146)), new Color(new Rgb24(196, 167, 231))),
(new Color(new Rgb24(246, 193, 119)), new Color(new Rgb24(235, 111, 146))),
(new Color(new Rgb24(246, 193, 119)), new Color(new Rgb24(235, 188, 186))),
(new Color(new Rgb24(246, 193, 119)), new Color(new Rgb24(49, 116, 143))),
(new Color(new Rgb24(246, 193, 119)), new Color(new Rgb24(156, 207, 216))),
(new Color(new Rgb24(246, 193, 119)), new Color(new Rgb24(196, 167, 231))),
(new Color(new Rgb24(235, 188, 186)), new Color(new Rgb24(235, 111, 146))),
(new Color(new Rgb24(235, 188, 186)), new Color(new Rgb24(246, 193, 119))),
(new Color(new Rgb24(235, 188, 186)), new Color(new Rgb24(49, 116, 143))),
(new Color(new Rgb24(235, 188, 186)), new Color(new Rgb24(156, 207, 216))),
(new Color(new Rgb24(235, 188, 186)), new Color(new Rgb24(196, 167, 231))),
(new Color(new Rgb24(49, 116, 143)), new Color(new Rgb24(235, 111, 146))),
(new Color(new Rgb24(49, 116, 143)), new Color(new Rgb24(246, 193, 119))),
(new Color(new Rgb24(49, 116, 143)), new Color(new Rgb24(235, 188, 186))),
(new Color(new Rgb24(49, 116, 143)), new Color(new Rgb24(156, 207, 216))),
(new Color(new Rgb24(49, 116, 143)), new Color(new Rgb24(196, 167, 231))),
(new Color(new Rgb24(156, 207, 216)), new Color(new Rgb24(235, 111, 146))),
(new Color(new Rgb24(156, 207, 216)), new Color(new Rgb24(246, 193, 119))),
(new Color(new Rgb24(156, 207, 216)), new Color(new Rgb24(235, 188, 186))),
(new Color(new Rgb24(156, 207, 216)), new Color(new Rgb24(49, 116, 143))),
(new Color(new Rgb24(156, 207, 216)), new Color(new Rgb24(196, 167, 231))),
(new Color(new Rgb24(196, 167, 231)), new Color(new Rgb24(235, 111, 146))),
(new Color(new Rgb24(196, 167, 231)), new Color(new Rgb24(246, 193, 119))),
(new Color(new Rgb24(196, 167, 231)), new Color(new Rgb24(235, 188, 186))),
(new Color(new Rgb24(196, 167, 231)), new Color(new Rgb24(49, 116, 143))),
(new Color(new Rgb24(196, 167, 231)), new Color(new Rgb24(156, 207, 216)))
];
#endregion

4
Iceshrimp.Backend/Iceshrimp.Backend.csproj
View file

@ -31,11 +31,9 @@
</PackageReference>
<PackageReference Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="8.0.1"/>
<PackageReference Include="Microsoft.Extensions.Configuration.Ini" Version="8.0.0"/>
<PackageReference Include="Microsoft.Maui.Graphics" Version="8.0.6"/>
<PackageReference Include="Microsoft.Maui.Graphics.Skia" Version="8.0.6"/>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.0"/>
<PackageReference Include="protobuf-net" Version="3.2.30"/>
<PackageReference Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="2.88.7" />
<PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.1" />
<PackageReference Include="StackExchange.Redis" Version="2.7.17"/>
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0"/>
<PackageReference Include="System.IO.Hashing" Version="8.0.0"/>