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Use spans to improve performance in StreamExts.

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Also avoid ReadBytes calls that allocate a buffer by either updating the stream position (if not interested in the bytes), by reusing an input buffer (if interested in the bytes), or using a stackalloc buffer to avoid the allocation (for small reads).
This commit is contained in:
RoosterDragon
2023-09-19 18:10:09 +01:00
committed by Gustas
parent b3ee3551ca
commit 5d91b678bb
20 changed files with 153 additions and 92 deletions
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6
OpenRA.Game/CryptoUtil.cs
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@@ -165,9 +165,9 @@ namespace OpenRA
if (length < 0x80)
return length;
var data = new byte[4];
s.ReadBytes(data, 0, Math.Min(length & 0x7F, 4));
return BitConverter.ToInt32(data.ToArray(), 0);
Span<byte> data = stackalloc byte[4];
s.ReadBytes(data[..Math.Min(length & 0x7F, 4)]);
return BitConverter.ToInt32(data);
}
static int TripletFullLength(int dataLength)