#nullable enable
using System;
using System.Collections.Generic;
using System.Linq;
namespace HumanoidRetargeterZstd.Unsafe
{
    public unsafe struct ZSTD_DCtx_s
    {
        public ZSTD_seqSymbol* LLTptr;
        public ZSTD_seqSymbol* MLTptr;
        public ZSTD_seqSymbol* OFTptr;
        public uint* HUFptr;
        public ZSTD_entropyDTables_t entropy;
        /* space needed when building huffman tables */
        public fixed uint workspace[640];
        /* detect continuity */
        public void* previousDstEnd;
        /* start of current segment */
        public void* prefixStart;
        /* virtual start of previous segment if it was just before current one */
        public void* virtualStart;
        /* end of previous segment */
        public void* dictEnd;
        public nuint expected;
        public ZSTD_frameHeader fParams;
        public ulong processedCSize;
        public ulong decodedSize;
        /* used in ZSTD_decompressContinue(), store blockType between block header decoding and block decompression stages */
        public blockType_e bType;
        public ZSTD_dStage stage;
        public uint litEntropy;
        public uint fseEntropy;
        public XXH64_state_s xxhState;
        public nuint headerSize;
        public ZSTD_format_e format;
        /* User specified: if == 1, will ignore checksums in compressed frame. Default == 0 */
        public ZSTD_forceIgnoreChecksum_e forceIgnoreChecksum;
        /* if == 1, will validate checksum. Is == 1 if (fParams.checksumFlag == 1) and (forceIgnoreChecksum == 0). */
        public uint validateChecksum;
        public byte* litPtr;
        public ZSTD_customMem customMem;
        public nuint litSize;
        public nuint rleSize;
        public nuint staticSize;
        public int isFrameDecompression;
        /* dictionary */
        public ZSTD_DDict_s* ddictLocal;
        /* set by ZSTD_initDStream_usingDDict(), or ZSTD_DCtx_refDDict() */
        public ZSTD_DDict_s* ddict;
        public uint dictID;
        /* if == 1 : dictionary is "new" for working context, and presumed "cold" (not in cpu cache) */
        public int ddictIsCold;
        public ZSTD_dictUses_e dictUses;
        /* Hash set for multiple ddicts */
        public ZSTD_DDictHashSet* ddictSet;
        /* User specified: if == 1, will allow references to multiple DDicts. Default == 0 (disabled) */
        public ZSTD_refMultipleDDicts_e refMultipleDDicts;
        public int disableHufAsm;
        public int maxBlockSizeParam;
        /* streaming */
        public ZSTD_dStreamStage streamStage;
        public sbyte* inBuff;
        public nuint inBuffSize;
        public nuint inPos;
        public nuint maxWindowSize;
        public sbyte* outBuff;
        public nuint outBuffSize;
        public nuint outStart;
        public nuint outEnd;
        public nuint lhSize;
        public uint hostageByte;
        public int noForwardProgress;
        public ZSTD_bufferMode_e outBufferMode;
        public ZSTD_outBuffer_s expectedOutBuffer;
        /* workspace */
        public byte* litBuffer;
        public byte* litBufferEnd;
        public ZSTD_litLocation_e litBufferLocation;
        /* literal buffer can be split between storage within dst and within this scratch buffer */
        public fixed byte litExtraBuffer[65568];
        public fixed byte headerBuffer[18];
        public nuint oversizedDuration;
    }
}