diff options
Diffstat (limited to 'compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs')
-rw-r--r-- | compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs | 576 |
1 files changed, 288 insertions, 288 deletions
diff --git a/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs index 90c7c3b..be184b4 100644 --- a/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs +++ b/compat/zlib/contrib/dotzlib/DotZLib/DotZLib.cs @@ -1,288 +1,288 @@ -// -// © Copyright Henrik Ravn 2004 -// -// Use, modification and distribution are subject to the Boost Software License, Version 1.0. -// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -using System; -using System.IO; -using System.Runtime.InteropServices; -using System.Text; - - -namespace DotZLib -{ - - #region Internal types - - /// <summary> - /// Defines constants for the various flush types used with zlib - /// </summary> - internal enum FlushTypes - { - None, Partial, Sync, Full, Finish, Block - } - - #region ZStream structure - // internal mapping of the zlib zstream structure for marshalling - [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)] - internal struct ZStream - { - public IntPtr next_in; - public uint avail_in; - public uint total_in; - - public IntPtr next_out; - public uint avail_out; - public uint total_out; - - [MarshalAs(UnmanagedType.LPStr)] - string msg; - uint state; - - uint zalloc; - uint zfree; - uint opaque; - - int data_type; - public uint adler; - uint reserved; - } - - #endregion - - #endregion - - #region Public enums - /// <summary> - /// Defines constants for the available compression levels in zlib - /// </summary> - public enum CompressLevel : int - { - /// <summary> - /// The default compression level with a reasonable compromise between compression and speed - /// </summary> - Default = -1, - /// <summary> - /// No compression at all. The data are passed straight through. - /// </summary> - None = 0, - /// <summary> - /// The maximum compression rate available. - /// </summary> - Best = 9, - /// <summary> - /// The fastest available compression level. - /// </summary> - Fastest = 1 - } - #endregion - - #region Exception classes - /// <summary> - /// The exception that is thrown when an error occurs on the zlib dll - /// </summary> - public class ZLibException : ApplicationException - { - /// <summary> - /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified - /// error message and error code - /// </summary> - /// <param name="errorCode">The zlib error code that caused the exception</param> - /// <param name="msg">A message that (hopefully) describes the error</param> - public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg)) - { - } - - /// <summary> - /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified - /// error code - /// </summary> - /// <param name="errorCode">The zlib error code that caused the exception</param> - public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode)) - { - } - } - #endregion - - #region Interfaces - - /// <summary> - /// Declares methods and properties that enables a running checksum to be calculated - /// </summary> - public interface ChecksumGenerator - { - /// <summary> - /// Gets the current value of the checksum - /// </summary> - uint Value { get; } - - /// <summary> - /// Clears the current checksum to 0 - /// </summary> - void Reset(); - - /// <summary> - /// Updates the current checksum with an array of bytes - /// </summary> - /// <param name="data">The data to update the checksum with</param> - void Update(byte[] data); - - /// <summary> - /// Updates the current checksum with part of an array of bytes - /// </summary> - /// <param name="data">The data to update the checksum with</param> - /// <param name="offset">Where in <c>data</c> to start updating</param> - /// <param name="count">The number of bytes from <c>data</c> to use</param> - /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception> - /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception> - /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception> - void Update(byte[] data, int offset, int count); - - /// <summary> - /// Updates the current checksum with the data from a string - /// </summary> - /// <param name="data">The string to update the checksum with</param> - /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks> - void Update(string data); - - /// <summary> - /// Updates the current checksum with the data from a string, using a specific encoding - /// </summary> - /// <param name="data">The string to update the checksum with</param> - /// <param name="encoding">The encoding to use</param> - void Update(string data, Encoding encoding); - } - - - /// <summary> - /// Represents the method that will be called from a codec when new data - /// are available. - /// </summary> - /// <paramref name="data">The byte array containing the processed data</paramref> - /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref> - /// <paramref name="count">The number of processed bytes available</paramref> - /// <remarks>On return from this method, the data may be overwritten, so grab it while you can. - /// You cannot assume that startIndex will be zero. - /// </remarks> - public delegate void DataAvailableHandler(byte[] data, int startIndex, int count); - - /// <summary> - /// Declares methods and events for implementing compressors/decompressors - /// </summary> - public interface Codec - { - /// <summary> - /// Occurs when more processed data are available. - /// </summary> - event DataAvailableHandler DataAvailable; - - /// <summary> - /// Adds more data to the codec to be processed. - /// </summary> - /// <param name="data">Byte array containing the data to be added to the codec</param> - /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks> - void Add(byte[] data); - - /// <summary> - /// Adds more data to the codec to be processed. - /// </summary> - /// <param name="data">Byte array containing the data to be added to the codec</param> - /// <param name="offset">The index of the first byte to add from <c>data</c></param> - /// <param name="count">The number of bytes to add</param> - /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks> - void Add(byte[] data, int offset, int count); - - /// <summary> - /// Finishes up any pending data that needs to be processed and handled. - /// </summary> - void Finish(); - - /// <summary> - /// Gets the checksum of the data that has been added so far - /// </summary> - uint Checksum { get; } - - - } - - #endregion - - #region Classes - /// <summary> - /// Encapsulates general information about the ZLib library - /// </summary> - public class Info - { - #region DLL imports - [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] - private static extern uint zlibCompileFlags(); - - [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)] - private static extern string zlibVersion(); - #endregion - - #region Private stuff - private uint _flags; - - // helper function that unpacks a bitsize mask - private static int bitSize(uint bits) - { - switch (bits) - { - case 0: return 16; - case 1: return 32; - case 2: return 64; - } - return -1; - } - #endregion - - /// <summary> - /// Constructs an instance of the <c>Info</c> class. - /// </summary> - public Info() - { - _flags = zlibCompileFlags(); - } - - /// <summary> - /// True if the library is compiled with debug info - /// </summary> - public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } } - - /// <summary> - /// True if the library is compiled with assembly optimizations - /// </summary> - public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } } - - /// <summary> - /// Gets the size of the unsigned int that was compiled into Zlib - /// </summary> - public int SizeOfUInt { get { return bitSize(_flags & 3); } } - - /// <summary> - /// Gets the size of the unsigned long that was compiled into Zlib - /// </summary> - public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } } - - /// <summary> - /// Gets the size of the pointers that were compiled into Zlib - /// </summary> - public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } } - - /// <summary> - /// Gets the size of the z_off_t type that was compiled into Zlib - /// </summary> - public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } } - - /// <summary> - /// Gets the version of ZLib as a string, e.g. "1.2.1" - /// </summary> - public static string Version { get { return zlibVersion(); } } - } - - #endregion - -} +//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+
+ #region Internal types
+
+ /// <summary>
+ /// Defines constants for the various flush types used with zlib
+ /// </summary>
+ internal enum FlushTypes
+ {
+ None, Partial, Sync, Full, Finish, Block
+ }
+
+ #region ZStream structure
+ // internal mapping of the zlib zstream structure for marshalling
+ [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
+ internal struct ZStream
+ {
+ public IntPtr next_in;
+ public uint avail_in;
+ public uint total_in;
+
+ public IntPtr next_out;
+ public uint avail_out;
+ public uint total_out;
+
+ [MarshalAs(UnmanagedType.LPStr)]
+ string msg;
+ uint state;
+
+ uint zalloc;
+ uint zfree;
+ uint opaque;
+
+ int data_type;
+ public uint adler;
+ uint reserved;
+ }
+
+ #endregion
+
+ #endregion
+
+ #region Public enums
+ /// <summary>
+ /// Defines constants for the available compression levels in zlib
+ /// </summary>
+ public enum CompressLevel : int
+ {
+ /// <summary>
+ /// The default compression level with a reasonable compromise between compression and speed
+ /// </summary>
+ Default = -1,
+ /// <summary>
+ /// No compression at all. The data are passed straight through.
+ /// </summary>
+ None = 0,
+ /// <summary>
+ /// The maximum compression rate available.
+ /// </summary>
+ Best = 9,
+ /// <summary>
+ /// The fastest available compression level.
+ /// </summary>
+ Fastest = 1
+ }
+ #endregion
+
+ #region Exception classes
+ /// <summary>
+ /// The exception that is thrown when an error occurs on the zlib dll
+ /// </summary>
+ public class ZLibException : ApplicationException
+ {
+ /// <summary>
+ /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+ /// error message and error code
+ /// </summary>
+ /// <param name="errorCode">The zlib error code that caused the exception</param>
+ /// <param name="msg">A message that (hopefully) describes the error</param>
+ public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
+ {
+ }
+
+ /// <summary>
+ /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+ /// error code
+ /// </summary>
+ /// <param name="errorCode">The zlib error code that caused the exception</param>
+ public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
+ {
+ }
+ }
+ #endregion
+
+ #region Interfaces
+
+ /// <summary>
+ /// Declares methods and properties that enables a running checksum to be calculated
+ /// </summary>
+ public interface ChecksumGenerator
+ {
+ /// <summary>
+ /// Gets the current value of the checksum
+ /// </summary>
+ uint Value { get; }
+
+ /// <summary>
+ /// Clears the current checksum to 0
+ /// </summary>
+ void Reset();
+
+ /// <summary>
+ /// Updates the current checksum with an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ void Update(byte[] data);
+
+ /// <summary>
+ /// Updates the current checksum with part of an array of bytes
+ /// </summary>
+ /// <param name="data">The data to update the checksum with</param>
+ /// <param name="offset">Where in <c>data</c> to start updating</param>
+ /// <param name="count">The number of bytes from <c>data</c> to use</param>
+ /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+ /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
+ /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+ void Update(byte[] data, int offset, int count);
+
+ /// <summary>
+ /// Updates the current checksum with the data from a string
+ /// </summary>
+ /// <param name="data">The string to update the checksum with</param>
+ /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+ void Update(string data);
+
+ /// <summary>
+ /// Updates the current checksum with the data from a string, using a specific encoding
+ /// </summary>
+ /// <param name="data">The string to update the checksum with</param>
+ /// <param name="encoding">The encoding to use</param>
+ void Update(string data, Encoding encoding);
+ }
+
+
+ /// <summary>
+ /// Represents the method that will be called from a codec when new data
+ /// are available.
+ /// </summary>
+ /// <paramref name="data">The byte array containing the processed data</paramref>
+ /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
+ /// <paramref name="count">The number of processed bytes available</paramref>
+ /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
+ /// You cannot assume that startIndex will be zero.
+ /// </remarks>
+ public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
+
+ /// <summary>
+ /// Declares methods and events for implementing compressors/decompressors
+ /// </summary>
+ public interface Codec
+ {
+ /// <summary>
+ /// Occurs when more processed data are available.
+ /// </summary>
+ event DataAvailableHandler DataAvailable;
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ void Add(byte[] data);
+
+ /// <summary>
+ /// Adds more data to the codec to be processed.
+ /// </summary>
+ /// <param name="data">Byte array containing the data to be added to the codec</param>
+ /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+ /// <param name="count">The number of bytes to add</param>
+ /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+ void Add(byte[] data, int offset, int count);
+
+ /// <summary>
+ /// Finishes up any pending data that needs to be processed and handled.
+ /// </summary>
+ void Finish();
+
+ /// <summary>
+ /// Gets the checksum of the data that has been added so far
+ /// </summary>
+ uint Checksum { get; }
+
+
+ }
+
+ #endregion
+
+ #region Classes
+ /// <summary>
+ /// Encapsulates general information about the ZLib library
+ /// </summary>
+ public class Info
+ {
+ #region DLL imports
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern uint zlibCompileFlags();
+
+ [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+ private static extern string zlibVersion();
+ #endregion
+
+ #region Private stuff
+ private uint _flags;
+
+ // helper function that unpacks a bitsize mask
+ private static int bitSize(uint bits)
+ {
+ switch (bits)
+ {
+ case 0: return 16;
+ case 1: return 32;
+ case 2: return 64;
+ }
+ return -1;
+ }
+ #endregion
+
+ /// <summary>
+ /// Constructs an instance of the <c>Info</c> class.
+ /// </summary>
+ public Info()
+ {
+ _flags = zlibCompileFlags();
+ }
+
+ /// <summary>
+ /// True if the library is compiled with debug info
+ /// </summary>
+ public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
+
+ /// <summary>
+ /// True if the library is compiled with assembly optimizations
+ /// </summary>
+ public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
+
+ /// <summary>
+ /// Gets the size of the unsigned int that was compiled into Zlib
+ /// </summary>
+ public int SizeOfUInt { get { return bitSize(_flags & 3); } }
+
+ /// <summary>
+ /// Gets the size of the unsigned long that was compiled into Zlib
+ /// </summary>
+ public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
+
+ /// <summary>
+ /// Gets the size of the pointers that were compiled into Zlib
+ /// </summary>
+ public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
+
+ /// <summary>
+ /// Gets the size of the z_off_t type that was compiled into Zlib
+ /// </summary>
+ public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
+
+ /// <summary>
+ /// Gets the version of ZLib as a string, e.g. "1.2.1"
+ /// </summary>
+ public static string Version { get { return zlibVersion(); } }
+ }
+
+ #endregion
+
+}
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