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osu-lazer/osu.Game/Beatmaps/BeatmapManager_WorkingBeatmap.cs

148 lines
5.1 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using osu.Framework.Audio.Track;
using osu.Framework.Graphics.Textures;
using osu.Framework.Logging;
using osu.Framework.Testing;
using osu.Game.Beatmaps.Formats;
using osu.Game.IO;
using osu.Game.Skinning;
using osu.Game.Storyboards;
namespace osu.Game.Beatmaps
{
public partial class BeatmapManager
{
[ExcludeFromDynamicCompile]
private class BeatmapManagerWorkingBeatmap : WorkingBeatmap
{
[NotNull]
private readonly IBeatmapResourceProvider resources;
public BeatmapManagerWorkingBeatmap(BeatmapInfo beatmapInfo, [NotNull] IBeatmapResourceProvider resources)
: base(beatmapInfo, resources.AudioManager)
{
this.resources = resources;
}
protected override IBeatmap GetBeatmap()
{
if (BeatmapInfo.Path == null)
return new Beatmap { BeatmapInfo = BeatmapInfo };
try
{
using (var stream = new LineBufferedReader(resources.Files.GetStream(getPathForFile(BeatmapInfo.Path))))
return Decoder.GetDecoder<Beatmap>(stream).Decode(stream);
}
catch (Exception e)
{
Logger.Error(e, "Beatmap failed to load");
return null;
}
}
private string getPathForFile(string filename) => BeatmapSetInfo.Files.SingleOrDefault(f => string.Equals(f.Filename, filename, StringComparison.OrdinalIgnoreCase))?.FileInfo.StoragePath;
protected override bool BackgroundStillValid(Texture b) => false; // bypass lazy logic. we want to return a new background each time for refcounting purposes.
protected override Texture GetBackground()
{
if (Metadata?.BackgroundFile == null)
return null;
try
{
return resources.LargeTextureStore.Get(getPathForFile(Metadata.BackgroundFile));
}
catch (Exception e)
{
Logger.Error(e, "Background failed to load");
return null;
}
}
protected override Track GetBeatmapTrack()
{
if (Metadata?.AudioFile == null)
return null;
try
{
return resources.Tracks.Get(getPathForFile(Metadata.AudioFile));
}
catch (Exception e)
{
Logger.Error(e, "Track failed to load");
return null;
}
}
protected override Waveform GetWaveform()
{
if (Metadata?.AudioFile == null)
return null;
try
{
var trackData = resources.Files.GetStream(getPathForFile(Metadata.AudioFile));
return trackData == null ? null : new Waveform(trackData);
}
catch (Exception e)
{
Logger.Error(e, "Waveform failed to load");
return null;
}
}
protected override Storyboard GetStoryboard()
{
Storyboard storyboard;
try
{
using (var stream = new LineBufferedReader(resources.Files.GetStream(getPathForFile(BeatmapInfo.Path))))
{
var decoder = Decoder.GetDecoder<Storyboard>(stream);
// todo: support loading from both set-wide storyboard *and* beatmap specific.
if (BeatmapSetInfo?.StoryboardFile == null)
storyboard = decoder.Decode(stream);
else
{
using (var secondaryStream = new LineBufferedReader(resources.Files.GetStream(getPathForFile(BeatmapSetInfo.StoryboardFile))))
storyboard = decoder.Decode(stream, secondaryStream);
}
}
}
catch (Exception e)
{
Logger.Error(e, "Storyboard failed to load");
storyboard = new Storyboard();
}
storyboard.BeatmapInfo = BeatmapInfo;
return storyboard;
}
protected override ISkin GetSkin()
{
try
{
return new LegacyBeatmapSkin(BeatmapInfo, resources.Files, resources);
}
catch (Exception e)
{
Logger.Error(e, "Skin failed to load");
return null;
}
}
}
}
}