Fix per-frame allocations in BeatmapCarousel
#29688
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peppy
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Sep 4, 2024
peppy
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| Before | After |
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smoogipoo
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Sep 4, 2024
| public IEnumerable<DrawableCarouselItem> DrawableBeatmaps => beatmapContainer?.IsLoaded != true ? Enumerable.Empty<DrawableCarouselItem>() : beatmapContainer.AliveChildren; | ||
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| private Container<DrawableCarouselItem>? beatmapContainer; | ||
| public Container<DrawableCarouselItem>? Beatmaps; |
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I think I'd prefer this to be private and exposed as an IReadOnlyList.
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Just to confirm, this means using the for loop as you proposed?
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bdach
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Sep 4, 2024
| @@ -51,7 +51,7 @@ public partial class DrawableCarouselBeatmapSet : DrawableCarouselItem, IHasCont | |||
| [Resolved] | |||
| private IBindable<RulesetInfo> ruleset { get; set; } = null!; | |||
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| public IEnumerable<DrawableCarouselItem> DrawableBeatmaps => beatmapContainer?.IsLoaded != true ? Enumerable.Empty<DrawableCarouselItem>() : beatmapContainer.AliveChildren; | |||
| public IReadOnlyList<DrawableCarouselItem> DrawableBeatmaps => beatmapContainer?.IsLoaded != true ? Array.Empty<DrawableCarouselItem>() : beatmapContainer; | |||
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Can't immediately tell if the AliveChildren to Children swap here is correct but I don't think we do any lifetime games in song select so I think it should be
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Yeah it seemed fine. Worst case it's just setting some values when not required, but it's worth the alloc saving.
smoogipoo
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Sep 4, 2024
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