Deflater()

System.IO.Compression.Deflater.Deflater ( CompressionLevel compressionLevel, int windowBits )

inlinepackage

Definition at line 15 of file Deflater.cs.

    {
        ZLibNative.CompressionLevel level;
        int memLevel;
        switch (compressionLevel)
        {
        case CompressionLevel.Optimal:
            level = ZLibNative.CompressionLevel.DefaultCompression;
            memLevel = 8;
            break;
        case CompressionLevel.Fastest:
            level = ZLibNative.CompressionLevel.BestSpeed;
            memLevel = 8;
            break;
        case CompressionLevel.NoCompression:
            level = ZLibNative.CompressionLevel.NoCompression;
            memLevel = 7;
            break;
        case CompressionLevel.SmallestSize:
            level = ZLibNative.CompressionLevel.BestCompression;
            memLevel = 8;
            break;
        default:
            throw new ArgumentOutOfRangeException("compressionLevel");
        }
        ZLibNative.CompressionStrategy strategy = ZLibNative.CompressionStrategy.DefaultStrategy;
        ZLibNative.ErrorCode errorCode;
        try
        {
            errorCode = ZLibNative.CreateZLibStreamForDeflate(out _zlibStream, level, windowBits, memLevel, strategy);
        }
        catch (Exception innerException)
        {
            throw new ZLibException(System.SR.ZLibErrorDLLLoadError, innerException);
        }
        switch (errorCode)
        {
        case ZLibNative.ErrorCode.Ok:
            break;
        case ZLibNative.ErrorCode.MemError:
            throw new ZLibException(System.SR.ZLibErrorNotEnoughMemory, "deflateInit2_", (int)errorCode, _zlibStream.GetErrorMessage());
        case ZLibNative.ErrorCode.VersionError:
            throw new ZLibException(System.SR.ZLibErrorVersionMismatch, "deflateInit2_", (int)errorCode, _zlibStream.GetErrorMessage());
        case ZLibNative.ErrorCode.StreamError:
            throw new ZLibException(System.SR.ZLibErrorIncorrectInitParameters, "deflateInit2_", (int)errorCode, _zlibStream.GetErrorMessage());
        default:
            throw new ZLibException(System.SR.ZLibErrorUnexpected, "deflateInit2_", (int)errorCode, _zlibStream.GetErrorMessage());
        }
    }

References System.IO.Compression.Deflater._zlibStream, System.IO.Compression.ZLibNative.CreateZLibStreamForDeflate(), System.SR.ZLibErrorDLLLoadError, System.SR.ZLibErrorIncorrectInitParameters, System.SR.ZLibErrorNotEnoughMemory, System.SR.ZLibErrorUnexpected, and System.SR.ZLibErrorVersionMismatch.