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Code Issues Releases Wiki Activity

The overhead of LINQ is not ignorable

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This commit is contained in:
Huo Yaoyuan 2024-02-29 00:07:00 +08:00
parent bcb91f348d
commit 470d2be2e1
1 changed files with 20 additions and 1 deletions
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21
osu.Game/Rulesets/Objects/Legacy/ConvertHitObjectParser.cs
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@ -302,7 +302,7 @@ namespace osu.Game.Rulesets.Objects.Legacy
controlPoints.AddRange(convertPoints(segments[i].Type, new ArraySegment<Vector2>(points, startIndex, endIndex - startIndex), endPoint));
}
return controlPoints.SelectMany(s => s).ToArray();
return mergePointsLists(controlPoints);
}
finally
{
@ -392,6 +392,25 @@ namespace osu.Game.Rulesets.Objects.Legacy
- (p1.X - p0.X) * (p2.Y - p0.Y));
}
private PathControlPoint[] mergePointsLists(List<ArraySegment<PathControlPoint>> controlPointList)
{
int totalCount = 0;
foreach (var arr in controlPointList)
totalCount += arr.Count;
var mergedArray = new PathControlPoint[totalCount];
int copyIndex = 0;
foreach (var arr in controlPointList)
{
arr.AsSpan().CopyTo(mergedArray.AsSpan(copyIndex));
copyIndex += arr.Count;
}
return mergedArray;
}
/// <summary>
/// Creates a legacy Hit-type hit object.
/// </summary>