mirror of
https://github.com/ppy/osu
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103 lines
4.2 KiB
C#
103 lines
4.2 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.Collections.Generic;
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using System.IO;
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using osu.Game.Rulesets.Edit.Checks.Components;
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namespace osu.Game.Rulesets.Edit.Checks
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{
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public class CheckBackgroundQuality : ICheck
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{
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// These are the requirements as stated in the Ranking Criteria.
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// See https://osu.ppy.sh/wiki/en/Ranking_Criteria#rules.5
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private const int min_width = 160;
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private const int max_width = 2560;
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private const int min_height = 120;
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private const int max_height = 1440;
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private const double max_filesize_mb = 2.5d;
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// It's usually possible to find a higher resolution of the same image if lower than these.
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private const int low_width = 960;
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private const int low_height = 540;
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public CheckMetadata Metadata { get; } = new CheckMetadata(CheckCategory.Resources, "Too high or low background resolution");
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public IEnumerable<IssueTemplate> PossibleTemplates => new IssueTemplate[]
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{
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new IssueTemplateTooHighResolution(this),
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new IssueTemplateTooLowResolution(this),
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new IssueTemplateTooUncompressed(this)
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};
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public IEnumerable<Issue> Run(BeatmapVerifierContext context)
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{
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string backgroundFile = context.Beatmap.Metadata?.BackgroundFile;
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if (backgroundFile == null)
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yield break;
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var texture = context.WorkingBeatmap.Background;
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if (texture == null)
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yield break;
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if (texture.Width > max_width || texture.Height > max_height)
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yield return new IssueTemplateTooHighResolution(this).Create(texture.Width, texture.Height);
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if (texture.Width < min_width || texture.Height < min_height)
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yield return new IssueTemplateTooLowResolution(this).Create(texture.Width, texture.Height);
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else if (texture.Width < low_width || texture.Height < low_height)
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yield return new IssueTemplateLowResolution(this).Create(texture.Width, texture.Height);
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string storagePath = context.Beatmap.BeatmapInfo.BeatmapSet.GetPathForFile(backgroundFile);
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using (Stream stream = context.WorkingBeatmap.GetStream(storagePath))
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{
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double filesizeMb = stream.Length / (1024d * 1024d);
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if (filesizeMb > max_filesize_mb)
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yield return new IssueTemplateTooUncompressed(this).Create(filesizeMb);
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}
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}
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public class IssueTemplateTooHighResolution : IssueTemplate
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{
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public IssueTemplateTooHighResolution(ICheck check)
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: base(check, IssueType.Problem, "The background resolution ({0} x {1}) exceeds {2} x {3}.")
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{
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}
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public Issue Create(double width, double height) => new Issue(this, width, height, max_width, max_height);
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}
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public class IssueTemplateTooLowResolution : IssueTemplate
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{
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public IssueTemplateTooLowResolution(ICheck check)
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: base(check, IssueType.Problem, "The background resolution ({0} x {1}) is lower than {2} x {3}.")
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{
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}
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public Issue Create(double width, double height) => new Issue(this, width, height, min_width, min_height);
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}
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public class IssueTemplateLowResolution : IssueTemplate
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{
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public IssueTemplateLowResolution(ICheck check)
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: base(check, IssueType.Warning, "The background resolution ({0} x {1}) is lower than {2} x {3}.")
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{
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}
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public Issue Create(double width, double height) => new Issue(this, width, height, low_width, low_height);
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}
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public class IssueTemplateTooUncompressed : IssueTemplate
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{
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public IssueTemplateTooUncompressed(ICheck check)
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: base(check, IssueType.Problem, "The background filesize ({0:0.##} MB) exceeds {1} MB.")
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{
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}
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public Issue Create(double actualMb) => new Issue(this, actualMb, max_filesize_mb);
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}
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}
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}
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