95 lines
3.0 KiB
Plaintext
95 lines
3.0 KiB
Plaintext
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="HLSFAllocator.Level.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.HighPerformance.Memory
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{
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public unsafe partial class HybridLayerSegregatedFitAllocator
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{
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private const int MaxLevel = 9;
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private static readonly int[] levelSize = [
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64, 256, 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
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];
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public int AlignOfLevel(int bucketLevel)
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{
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int blockSize = levelSize[bucketLevel];
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return int.Min(blockSize, _align);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private int GetLevelFromSize(uint size)
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{
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/*
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rebuild by using binary operations
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*/
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// Ensure minimum size
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if (size <= 64)
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{
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return 0;
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}
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// Find the appropriate level for the given size
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for (int i = 0; i < levelSize.Length - 1; i++)
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{
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if (size <= levelSize[i]) {
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return i;
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}
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}
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// If size is larger than all predefined levels, use the last level
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return levelSize.Length - 1;
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}
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}
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public enum CommonMemoryAlign : int
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{
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XMMLevel = 16,
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YMMLevel = 32,
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ZMMLevel = 64,
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ArmNEONLevel = 16,
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}
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}
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