mirror of https://github.com/ppy/osu
85 lines
3.2 KiB
C#
85 lines
3.2 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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using osu.Framework.Graphics.Textures;
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using osu.Framework.IO.Stores;
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using SixLabors.ImageSharp;
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using SixLabors.ImageSharp.Processing;
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namespace osu.Game.Skinning
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{
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public class MaxDimensionLimitedTextureLoaderStore : IResourceStore<TextureUpload>
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{
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private readonly IResourceStore<TextureUpload>? textureStore;
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public MaxDimensionLimitedTextureLoaderStore(IResourceStore<TextureUpload>? textureStore)
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{
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this.textureStore = textureStore;
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}
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public void Dispose()
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{
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textureStore?.Dispose();
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}
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public TextureUpload Get(string name)
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{
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var textureUpload = textureStore?.Get(name);
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// NRT not enabled on framework side classes (IResourceStore / TextureLoaderStore), welp.
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if (textureUpload == null)
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return null!;
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return limitTextureUploadSize(textureUpload);
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}
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public async Task<TextureUpload> GetAsync(string name, CancellationToken cancellationToken = new CancellationToken())
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{
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// NRT not enabled on framework side classes (IResourceStore / TextureLoaderStore), welp.
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if (textureStore == null)
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return null!;
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var textureUpload = await textureStore.GetAsync(name, cancellationToken).ConfigureAwait(false);
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if (textureUpload == null)
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return null!;
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return await Task.Run(() => limitTextureUploadSize(textureUpload), cancellationToken).ConfigureAwait(false);
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}
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private TextureUpload limitTextureUploadSize(TextureUpload textureUpload)
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{
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// So there's a thing where some users have taken it upon themselves to create skin elements of insane dimensions.
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// To the point where GPUs cannot load the textures (along with most image editor apps).
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// To work around this, let's look out for any stupid images and shrink them down into a usable size.
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const int max_supported_texture_size = 8192;
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if (textureUpload.Height > max_supported_texture_size || textureUpload.Width > max_supported_texture_size)
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{
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var image = Image.LoadPixelData(textureUpload.Data, textureUpload.Width, textureUpload.Height);
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// The original texture upload will no longer be returned or used.
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textureUpload.Dispose();
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image.Mutate(i => i.Resize(new Size(
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Math.Min(textureUpload.Width, max_supported_texture_size),
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Math.Min(textureUpload.Height, max_supported_texture_size)
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)));
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return new TextureUpload(image);
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}
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return textureUpload;
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}
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public Stream? GetStream(string name) => textureStore?.GetStream(name);
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public IEnumerable<string> GetAvailableResources() => textureStore?.GetAvailableResources() ?? Array.Empty<string>();
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}
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}
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