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Code Issues Releases Wiki Activity

Redice allocations during aggregate beatmap sort

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This commit is contained in:
Andrei Zavatski 2024-02-15 00:00:39 +03:00
parent c588b81cee
commit 6e1b4152c0
1 changed files with 31 additions and 3 deletions
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34
osu.Game/Screens/Select/Carousel/CarouselBeatmapSet.cs
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@ -127,12 +127,40 @@ namespace osu.Game.Screens.Select.Carousel
/// <summary>
/// All beatmaps which are not filtered and valid for display.
/// </summary>
protected IEnumerable<BeatmapInfo> ValidBeatmaps => Beatmaps.Where(b => !b.Filtered.Value || b.State.Value == CarouselItemState.Selected).Select(b => b.BeatmapInfo);
protected IEnumerable<BeatmapInfo> ValidBeatmaps
{
get
{
foreach (var item in Items) // iterating over Items directly to not allocate 2 enumerators
{
if (item is CarouselBeatmap b && (!b.Filtered.Value || b.State.Value == CarouselItemState.Selected))
yield return b.BeatmapInfo;
}
}
}
/// <summary>
/// Whether there are available beatmaps which are not filtered and valid for display.
/// Cheaper alternative to <see cref="ValidBeatmaps"/>.Any()
/// </summary>
public bool HasValidBeatmaps
{
get
{
foreach (var item in Items) // iterating over Items directly to not allocate 2 enumerators
{
if (item is CarouselBeatmap b && (!b.Filtered.Value || b.State.Value == CarouselItemState.Selected))
return true;
}
return false;
}
}
private int compareUsingAggregateMax(CarouselBeatmapSet other, Func<BeatmapInfo, double> func)
{
bool ourBeatmaps = ValidBeatmaps.Any();
bool otherBeatmaps = other.ValidBeatmaps.Any();
bool ourBeatmaps = HasValidBeatmaps;
bool otherBeatmaps = other.HasValidBeatmaps;
if (!ourBeatmaps && !otherBeatmaps) return 0;
if (!ourBeatmaps) return -1;