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28 lines
994 B
C#
28 lines
994 B
C#
namespace BrotliImpl.Combined.Hashers{
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abstract class HasherCommon : IHasher{
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/// <summary>
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/// Adapted from https://github.com/google/brotli/blob/master/c/enc/platform.h (BROTLI_UNALIGNED_LOAD64LE).
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/// </summary>
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public static ulong Load64LE(byte[] bytes, int start){
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ulong n = 0L;
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for(int offset = 0; offset < sizeof(ulong); offset++){
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n |= (ulong)bytes[start + offset] << (8 * offset);
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}
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return n;
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}
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// Abstract
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public abstract int StoreLookahead { get; }
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public abstract int HashTypeLength { get; }
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public abstract void Store(int ip);
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public abstract void StoreRange(int ipStart, int ipEnd);
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public abstract void StitchToPreviousBlock(int chunkLength, int ip);
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public abstract HasherSearchResult FindLongestMatch(int ip, int maxLength, int maxDistance, int dictionaryStart, int lastDistance, int bestLenIn);
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}
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}
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