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WIP: CompressSave 1.2.0

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Soar Qin
2022-11-20 16:36:02 +08:00
parent f4457c5fd2
commit aec98cda34
33 changed files with 714 additions and 334 deletions
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64
CompressSave/Wrapper/WrapperDefines.cs Normal file
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using System;
namespace CompressSave.Wrapper;
public struct DecompressStatus
{
public long WriteLen;
public long ReadLen;
public long Expect;
}
public class WrapperDefines
{
public delegate long CompressBufferBoundFunc(long inBufferSize);
public delegate long CompressBeginFunc(out IntPtr ctx, int compressionLevel, byte[] outBuff, long outCapacity, byte[] dictBuffer = null,
long dictSize = 0);
public delegate long CompressEndFunc(IntPtr ctx, byte[] dstBuffer, long dstCapacity);
public delegate void CompressContextFreeFunc(IntPtr ctx);
public delegate long DecompressBeginFunc(ref IntPtr pdctx, byte[] inBuffer, ref int inBufferSize, out int blockSize, byte[] dict = null, long dictSize = 0);
public delegate long DecompressEndFunc(IntPtr dctx);
public delegate void DecompressContextResetFunc(IntPtr dctx);
protected unsafe delegate long CompressUpdateFunc(IntPtr ctx, byte* dstBuffer, long dstCapacity, byte* srcBuffer,
long srcSize);
protected unsafe delegate long DecompressUpdateFunc(IntPtr dctx, byte* dstBuffer, ref long dstCapacity, byte* srcBuffer,
ref long srcSize);
public CompressBufferBoundFunc CompressBufferBound;
public CompressBeginFunc CompressBegin;
public CompressEndFunc CompressEnd;
public CompressContextFreeFunc CompressContextFree;
public DecompressBeginFunc DecompressBegin;
public DecompressEndFunc DecompressEnd;
public DecompressContextResetFunc DecompressContextReset;
protected CompressUpdateFunc CompressUpdate;
protected DecompressUpdateFunc DecompressUpdate;
public unsafe long CompressUpdateEx(IntPtr ctx, byte[] dstBuffer, long dstOffset, byte[] srcBuffer,
long srcOffset, long srcLen)
{
fixed (byte* pdst = dstBuffer, psrc = srcBuffer)
{
return CompressUpdate(ctx, pdst + dstOffset, dstBuffer.Length - dstOffset, psrc + srcOffset,
srcLen - srcOffset);
}
}
public unsafe DecompressStatus DecompressUpdateEx(IntPtr dctx, byte[] dstBuffer, int dstOffset, int dstCount,
byte[] srcBuffer, long srcOffset, long count)
{
long dstLen = Math.Min(dstCount, dstBuffer.Length - dstOffset);
long errCode;
fixed (byte* pdst = dstBuffer, psrc = srcBuffer)
{
errCode = DecompressUpdate(dctx, pdst + dstOffset, ref dstLen, psrc + srcOffset, ref count);
}
return new DecompressStatus
{
Expect = errCode,
ReadLen = count,
WriteLen = dstLen,
};
}
}