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Refactor and code cleanup.

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This commit is contained in:
Natalia Portillo
2016-07-28 22:25:26 +01:00
parent c93d469da9
commit a63ba13b6b
199 changed files with 3614 additions and 3744 deletions
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32
DiscImageChef.Checksums/CRC64Context.cs
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@@ -41,11 +41,11 @@ namespace DiscImageChef.Checksums
/// </summary>
public class CRC64Context
{
const UInt64 crc64Poly = 0xC96C5795D7870F42;
const UInt64 crc64Seed = 0xFFFFFFFFFFFFFFFF;
const ulong crc64Poly = 0xC96C5795D7870F42;
const ulong crc64Seed = 0xFFFFFFFFFFFFFFFF;
UInt64[] table;
UInt64 hashInt;
ulong[] table;
ulong hashInt;
/// <summary>
/// Initializes the CRC64 table and seed
@@ -54,10 +54,10 @@ namespace DiscImageChef.Checksums
{
hashInt = crc64Seed;
table = new UInt64[256];
table = new ulong[256];
for(int i = 0; i < 256; i++)
{
UInt64 entry = (UInt64)i;
ulong entry = (ulong)i;
for(int j = 0; j < 8; j++)
if((entry & 1) == 1)
entry = (entry >> 1) ^ crc64Poly;
@@ -133,15 +133,15 @@ namespace DiscImageChef.Checksums
public static string File(string filename, out byte[] hash)
{
FileStream fileStream = new FileStream(filename, FileMode.Open);
UInt64[] localTable;
UInt64 localhashInt;
ulong[] localTable;
ulong localhashInt;
localhashInt = crc64Seed;
localTable = new UInt64[256];
localTable = new ulong[256];
for(int i = 0; i < 256; i++)
{
UInt64 entry = (UInt64)i;
ulong entry = (ulong)i;
for(int j = 0; j < 8; j++)
if((entry & 1) == 1)
entry = (entry >> 1) ^ crc64Poly;
@@ -151,7 +151,7 @@ namespace DiscImageChef.Checksums
}
for(int i = 0; i < fileStream.Length; i++)
localhashInt = (localhashInt >> 8) ^ localTable[(ulong)fileStream.ReadByte() ^ localhashInt & (ulong)0xff];
localhashInt = (localhashInt >> 8) ^ localTable[(ulong)fileStream.ReadByte() ^ localhashInt & 0xffL];
BigEndianBitConverter.IsLittleEndian = BigEndianBitConverter.IsLittleEndian;
hash = BitConverter.GetBytes(localhashInt);
@@ -185,17 +185,17 @@ namespace DiscImageChef.Checksums
/// <param name="hash">Byte array of the hash value.</param>
/// <param name="polynomial">CRC polynomial</param>
/// <param name="seed">CRC seed</param>
public static string Data(byte[] data, uint len, out byte[] hash, UInt64 polynomial, UInt64 seed)
public static string Data(byte[] data, uint len, out byte[] hash, ulong polynomial, ulong seed)
{
UInt64[] localTable;
UInt64 localhashInt;
ulong[] localTable;
ulong localhashInt;
localhashInt = seed;
localTable = new UInt64[256];
localTable = new ulong[256];
for(int i = 0; i < 256; i++)
{
UInt64 entry = (UInt64)i;
ulong entry = (ulong)i;
for(int j = 0; j < 8; j++)
if((entry & 1) == 1)
entry = (entry >> 1) ^ polynomial;