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FileInternalBuffer.cs
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namespace LC6464.Base16384;
/// <summary>
/// Base16384 编解码器。
/// </summary>
public static partial class Base16384 {
/// <summary>
/// 强制使用长流模式（分段编码）编码二进制数据流中的数据到 Base16384 UTF-16 BE 编码文件。
/// </summary>
/// <param name="stream">二进制数据流</param>
/// <param name="fileInfo">创建的 Base16384 UTF-16 BE 编码文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long EncodeFromLongStreamToNewFile(Stream stream, FileInfo fileInfo) =>
EncodeFromLongStreamToNewFile(stream, fileInfo, new byte[Buffer0Length], new byte[EncodeLength(Buffer0Length)]);
/// <summary>
/// 编码二进制数据流中的数据到 Base16384 UTF-16 BE 编码文件。
/// </summary>
/// <param name="stream">二进制数据流</param>
/// <param name="fileInfo">创建的 Base16384 UTF-16 BE 编码文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long EncodeToNewFile(Stream stream, FileInfo fileInfo) =>
!stream.CanSeek || stream.Length > Buffer0Length
? EncodeFromLongStreamToNewFile(stream, fileInfo)
: EncodeToNewFile(stream, fileInfo, new byte[stream.Length - stream.Position], new byte[EncodeLength(stream.Length - stream.Position)]);
/// <summary>
/// 强制使用长流模式（分段编码）解码 Base16384 UTF-16 BE 编码数据流中的数据到二进制文件。
/// </summary>
/// <param name="stream">Base16384 UTF-16 BE 编码数据流</param>
/// <param name="fileInfo">创建的二进制文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long DecodeFromLongStreamToNewFile(Stream stream, FileInfo fileInfo) =>
DecodeFromLongStreamToNewFile(stream, fileInfo, new byte[Buffer1Length + 2], new byte[DecodeLength(Buffer1Length)]);
/// <summary>
/// 解码 Base16384 UTF-16 BE 编码数据流中的数据到二进制文件。
/// </summary>
/// <param name="stream">Base16384 UTF-16 BE 编码数据流</param>
/// <param name="fileInfo">创建的二进制文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long DecodeToNewFile(Stream stream, FileInfo fileInfo) =>
!stream.CanSeek || stream.Length > Buffer1Length
? DecodeFromLongStreamToNewFile(stream, fileInfo)
: DecodeToNewFile(stream, fileInfo, new byte[stream.Length - stream.Position], new byte[DecodeLength(stream.Length - stream.Position)]);
/// <summary>
/// 编码二进制数据到 Base16384 UTF-16 BE 编码文件。
/// </summary>
/// <param name="data">二进制数据</param>
/// <param name="fileInfo">创建的 Base16384 UTF-16 BE 编码文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long EncodeToNewFile(ReadOnlySpan<byte> data, FileInfo fileInfo) =>
EncodeToNewFile(data, fileInfo, new byte[EncodeLength(Math.Min(Buffer0Length, data.Length))]);
/// <summary>
/// 解码 Base16384 UTF-16 BE 编码数据到二进制文件。
/// </summary>
/// <param name="data">Base16384 UTF-16 BE 编码数据</param>
/// <param name="fileInfo">创建的二进制文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long DecodeToNewFile(ReadOnlySpan<byte> data, FileInfo fileInfo) =>
DecodeToNewFile(data, fileInfo, new byte[DecodeLength(Math.Min(Buffer1Length, data.Length))]);
/// <summary>
/// 编码二进制文件中的数据至 Base16384 UTF-16 BE 编码数据，追加到输出数据流。
/// </summary>
/// <param name="fileInfo">二进制文件信息</param>
/// <param name="output">输出数据流</param>
/// <returns>已写入的数据长度</returns>
public static long EncodeFromFileToStream(FileInfo fileInfo, Stream output) =>
EncodeFromFileToStream(fileInfo, output, new byte[Math.Min(Buffer0Length, fileInfo.Length)], new byte[EncodeLength(Math.Min(Buffer0Length, fileInfo.Length))]);
/// <summary>
/// 解码 Base16384 UTF-16 BE 编码文件中的数据至二进制数据，追加到输出数据流。
/// </summary>
/// <param name="fileInfo">Base16384 UTF-16 BE 编码文件信息</param>
/// <param name="output">输出数据流</param>
/// <returns>已写入的数据长度</returns>
public static long DecodeFromFileToStream(FileInfo fileInfo, Stream output) =>
DecodeFromFileToStream(fileInfo, output, new byte[Math.Min(Buffer1Length + 2, fileInfo.Length)], new byte[DecodeLength(Math.Min(Buffer1Length, fileInfo.Length))]);
/// <summary>
/// 编码二进制文件中的数据至 Base16384 UTF-16 BE 编码文件。
/// </summary>
/// <param name="fileInfo">二进制文件信息</param>
/// <param name="outputFileInfo">Base16384 UTF-16 BE 编码文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long EncodeFromFileToNewFile(FileInfo fileInfo, FileInfo outputFileInfo) =>
EncodeFromFileToNewFile(fileInfo, outputFileInfo, new byte[Math.Min(Buffer0Length, fileInfo.Length)], new byte[EncodeLength(Math.Min(Buffer0Length, fileInfo.Length))]);
/// <summary>
/// 解码 Base16384 UTF-16 BE 编码文件中的数据至二进制文件。
/// </summary>
/// <param name="fileInfo">Base16384 UTF-16 BE 编码文件信息</param>
/// <param name="outputFileInfo">二进制文件信息</param>
/// <returns>已写入的数据长度</returns>
public static long DecodeFromFileToNewFile(FileInfo fileInfo, FileInfo outputFileInfo) =>
DecodeFromFileToNewFile(fileInfo, outputFileInfo, new byte[Math.Min(Buffer1Length + 2, fileInfo.Length)], new byte[DecodeLength(Math.Min(Buffer1Length, fileInfo.Length))]);
}