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Use ByteArrays for hashes (#2)
* [Disk, Rom] Use byte arrays for hashes to save memory * [Disk, Rom] Use byte arrays for hashes to save memory * [Disk, Rom] Use byte arrays for hashes to save memory * [FileTools] Use ByteArrayToString in CHD info * [ArchiveTools, FileTools] Use the Style method more * [Disk, Rom] Use byte arrays for hashes to save memory * [FileTools] Use ByteArrayToString in CHD info * [ArchiveTools, FileTools] Use the Style method more * [Disk, Rom] Use byte arrays for hashes to save memory * [FileTools] Use ByteArrayToString in CHD info * [ArchiveTools, FileTools] Use the Style method more * [Disk, Rom] Use byte arrays for hashes to save memory * [FileTools] Use ByteArrayToString in CHD info * [ArchiveTools, FileTools] Use the Style method more * [Disk, Rom] Use byte arrays for hashes to save memory * [FileTools] Use ByteArrayToString in CHD info * [ArchiveTools, FileTools] Use the Style method more * [SabreTools, GZipArchive] Refix some issues from rebase * # This is a combination of 2 commits. # This is the 1st commit message: # This is a combination of 2 commits. # This is the 1st commit message: # This is a combination of 2 commits. # This is the 1st commit message: # This is a combination of 2 commits. # This is the 1st commit message: # This is a combination of 4 commits. # This is the 1st commit message: [Disk, Rom] Use byte arrays for hashes to save memory # This is the commit message #2: [FileTools] Use ByteArrayToString in CHD info # This is the commit message #3: [ArchiveTools, FileTools] Use the Style method more # This is the commit message #4: [SabreTools, GZipArchive] Refix some issues from rebase # This is the commit message #2: [FileTools] Use ByteArrayToString in CHD info # This is the commit message #2: [FileTools] Use ByteArrayToString in CHD info # This is the commit message #2: [FileTools] Use ByteArrayToString in CHD info # This is the commit message #2: [FileTools] Use ByteArrayToString in CHD info * [Disk, Rom, Style] Add null or empty check to fix equality check * [Disk, Rom] Remove unused references * [Style] Add and implement BinaryReader extensions
This commit is contained in:
Matt Nadareski
GitHub
@@ -14,6 +14,7 @@ using System.IO;
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#else
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using Alphaleonis.Win32.Filesystem;
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using BinaryReader = System.IO.BinaryReader;
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using FileStream = System.IO.FileStream;
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#endif
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@@ -399,6 +400,162 @@ namespace SabreTools.Library.Tools
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#endregion
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#region Extensions
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/// <summary>
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/// Reads the specified number of bytes from the stream, starting from a specified point in the byte array.
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/// </summary>
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/// <param name="buffer">The buffer to read data into.</param>
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/// <param name="index">The starting point in the buffer at which to begin reading into the buffer.</param>
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/// <param name="count">The number of bytes to read.</param>
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/// <returns>The number of bytes read into buffer. This might be less than the number of bytes requested if that many bytes are not available, or it might be zero if the end of the stream is reached.</returns>
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public static int ReadReverse(this BinaryReader reader, byte[] buffer, int index, int count)
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{
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int retval = reader.Read(buffer, index, count);
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buffer = buffer.Reverse().ToArray();
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return retval;
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}
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/// <summary>
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/// Reads the specified number of characters from the stream, starting from a specified point in the character array.
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/// </summary>
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/// <param name="buffer">The buffer to read data into.</param>
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/// <param name="index">The starting point in the buffer at which to begin reading into the buffer.</param>
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/// <param name="count">The number of characters to read.</param>
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/// <returns>The total number of characters read into the buffer. This might be less than the number of characters requested if that many characters are not currently available, or it might be zero if the end of the stream is reached.</returns>
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public static int ReadReverse(this BinaryReader reader, char[] buffer, int index, int count)
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{
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int retval = reader.Read(buffer, index, count);
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buffer = buffer.Reverse().ToArray();
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return retval;
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}
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/// <summary>
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/// Reads the specified number of bytes from the current stream into a byte array and advances the current position by that number of bytes.
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/// </summary>
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/// <param name="count">The number of bytes to read. This value must be 0 or a non-negative number or an exception will occur.</param>
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/// <returns>A byte array containing data read from the underlying stream. This might be less than the number of bytes requested if the end of the stream is reached.</returns>
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public static byte[] ReadBytesReverse(this BinaryReader reader, int count)
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{
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byte[] retval = reader.ReadBytes(count);
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retval = retval.Reverse().ToArray();
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return retval;
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}
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/// <summary>
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/// Reads a decimal value from the current stream and advances the current position of the stream by sixteen bytes.
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/// </summary>
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/// <returns>A decimal value read from the current stream.</returns>
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public static decimal ReadDecimalReverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(16);
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retval = retval.Reverse().ToArray();
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int i1 = BitConverter.ToInt32(retval, 0);
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int i2 = BitConverter.ToInt32(retval, 4);
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int i3 = BitConverter.ToInt32(retval, 8);
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int i4 = BitConverter.ToInt32(retval, 12);
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return new decimal(new int[] { i1, i2, i3, i4 });
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}
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/// <summary>
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/// eads an 8-byte floating point value from the current stream and advances the current position of the stream by eight bytes.
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/// </summary>
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/// <returns>An 8-byte floating point value read from the current stream.</returns>
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public static double ReadDoubleReverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(8);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToDouble(retval, 0);
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}
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/// <summary>
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/// Reads a 2-byte signed integer from the current stream and advances the current position of the stream by two bytes.
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/// </summary>
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/// <returns>A 2-byte signed integer read from the current stream.</returns>
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public static short ReadInt16Reverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(2);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToInt16(retval, 0);
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}
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/// <summary>
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/// Reads a 4-byte signed integer from the current stream and advances the current position of the stream by four bytes.
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/// </summary>
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/// <returns>A 4-byte signed integer read from the current stream.</returns>
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public static int ReadInt32Reverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(4);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToInt32(retval, 0);
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}
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/// <summary>
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/// Reads an 8-byte signed integer from the current stream and advances the current position of the stream by eight bytes.
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/// </summary>
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/// <returns>An 8-byte signed integer read from the current stream.</returns>
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public static long ReadInt64Reverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(8);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToInt64(retval, 0);
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}
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/// <summary>
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/// Reads a 4-byte floating point value from the current stream and advances the current position of the stream by four bytes.
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/// </summary>
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/// <returns>A 4-byte floating point value read from the current stream.</returns>
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public static float ReadSingleReverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(4);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToSingle(retval, 0);
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}
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/// <summary>
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/// Reads a 2-byte unsigned integer from the current stream using little-endian encoding and advances the position of the stream by two bytes.
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///
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/// This API is not CLS-compliant.
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/// </summary>
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/// <returns>A 2-byte unsigned integer read from this stream.</returns>
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public static ushort ReadUInt16Reverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(2);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToUInt16(retval, 0);
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}
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/// <summary>
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/// Reads a 4-byte unsigned integer from the current stream and advances the position of the stream by four bytes.
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///
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/// This API is not CLS-compliant.
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/// </summary>
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/// <returns>A 4-byte unsigned integer read from this stream.</returns>
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public static uint ReadUInt32Reverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(4);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToUInt32(retval, 0);
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}
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/// <summary>
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/// Reads an 8-byte unsigned integer from the current stream and advances the position of the stream by eight bytes.
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///
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/// This API is not CLS-compliant.
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/// </summary>
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/// <returns>An 8-byte unsigned integer read from this stream.</returns>
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public static ulong ReadUInt64Reverse(this BinaryReader reader)
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{
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byte[] retval = reader.ReadBytes(8);
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retval = retval.Reverse().ToArray();
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return BitConverter.ToUInt64(retval, 0);
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}
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#endregion
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#region String Manipulation
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/// <summary>
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@@ -935,16 +1092,39 @@ namespace SabreTools.Library.Tools
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return readable.ToString("0.### ") + suffix;
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}
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/// <summary>
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/// http://stackoverflow.com/questions/311165/how-do-you-convert-byte-array-to-hexadecimal-string-and-vice-versa
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/// </summary>
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public static string ByteArrayToString(byte[] bytes)
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{
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try
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{
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string hex = BitConverter.ToString(bytes);
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return hex.Replace("-", string.Empty).ToLowerInvariant();
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}
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catch
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{
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return null;
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}
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}
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/// <summary>
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/// http://stackoverflow.com/questions/311165/how-do-you-convert-byte-array-to-hexadecimal-string-and-vice-versa
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/// </summary>
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public static byte[] StringToByteArray(string hex)
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{
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int NumberChars = hex.Length;
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byte[] bytes = new byte[NumberChars / 2];
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for (int i = 0; i < NumberChars; i += 2)
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bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
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return bytes;
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try
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{
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int NumberChars = hex.Length;
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byte[] bytes = new byte[NumberChars / 2];
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for (int i = 0; i < NumberChars; i += 2)
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bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
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return bytes;
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}
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catch
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{
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return null;
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}
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}
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/// <summary>
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@@ -1061,6 +1241,17 @@ namespace SabreTools.Library.Tools
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return localTime;
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}
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/// <summary>
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/// Indicates whether the specified array is null or has a length of zero.
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/// https://stackoverflow.com/questions/8560106/isnullorempty-equivalent-for-array-c-sharp
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/// </summary>
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/// <param name="array">The array to test.</param>
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/// <returns>true if the array parameter is null or has a length of zero; otherwise, false.</returns>
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public static bool IsNullOrEmpty(this Array array)
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{
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return (array == null || array.Length == 0);
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}
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#endregion
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}
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}
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