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Fix background unloading/reloading sometimes crashing

This commit is contained in:
smoogipoo 2019-05-07 17:24:05 +09:00
parent 1d2db85866
commit a00e2b18a9
2 changed files with 62 additions and 2 deletions

View File

@ -1,10 +1,12 @@
// 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.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Beatmaps;
using osu.Game.Beatmaps.Drawables;
using osu.Game.Online.API;
@ -86,8 +88,61 @@ namespace osu.Game.Tests.Visual.UserInterface
AddStep("online (login first)", () => { });
}
[Test]
public void TestUnloadAndReload()
{
var backgrounds = new List<TestUpdateableBeatmapBackgroundSprite>();
ScrollContainer scrollContainer = null;
AddStep("create backgrounds hierarchy", () =>
{
FillFlowContainer backgroundFlow;
Child = scrollContainer = new ScrollContainer
{
Size = new Vector2(500),
Child = backgroundFlow = new FillFlowContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Direction = FillDirection.Vertical,
Spacing = new Vector2(10),
Padding = new MarginPadding { Bottom = 250 }
}
};
for (int i = 0; i < 25; i++)
{
var background = new TestUpdateableBeatmapBackgroundSprite { RelativeSizeAxes = Axes.Both };
if (i % 2 == 0)
background.Beatmap.Value = testBeatmap.Beatmaps.First();
backgroundFlow.Add(new Container
{
RelativeSizeAxes = Axes.X,
Height = 100,
Masking = true,
Child = background
});
backgrounds.Add(background);
}
});
var loadedBackgrounds = backgrounds.Where(b => b.ContentLoaded);
int initialLoadCount = 0;
AddUntilStep("some loaded", () => (initialLoadCount = loadedBackgrounds.Count()) > 0);
AddStep("scroll to bottom", () => scrollContainer.ScrollToEnd());
AddUntilStep("some unloaded", () => loadedBackgrounds.Count() < initialLoadCount);
}
private class TestUpdateableBeatmapBackgroundSprite : UpdateableBeatmapBackgroundSprite
{
protected override double UnloadDelay => 2000;
public bool ContentLoaded => ((DelayedLoadUnloadWrapper)InternalChildren.LastOrDefault())?.Content?.IsLoaded ?? false;
}
}

View File

@ -26,6 +26,11 @@ namespace osu.Game.Beatmaps.Drawables
this.beatmapSetCoverType = beatmapSetCoverType;
}
/// <summary>
/// Delay before the background is unloaded while off-screen.
/// </summary>
protected virtual double UnloadDelay => 10000;
private BeatmapInfo lastModel;
protected override DelayedLoadWrapper CreateDelayedLoadWrapper(Drawable content, double timeBeforeLoad)
@ -34,13 +39,13 @@ namespace osu.Game.Beatmaps.Drawables
{
// If DelayedLoadUnloadWrapper is attempting to RELOAD the same content (Beatmap), that means that it was
// previously UNLOADED and thus its children have been disposed of, so we need to recreate them here.
if (lastModel == Beatmap.Value && Beatmap.Value != null)
if (lastModel == Beatmap.Value)
return CreateDrawable(Beatmap.Value);
// If the model has changed since the previous unload (or if there was no load), then we can safely use the given content
lastModel = Beatmap.Value;
return content;
}, timeBeforeLoad, 10000);
}, timeBeforeLoad, UnloadDelay);
}
protected override Drawable CreateDrawable(BeatmapInfo model)