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Commit 303ae446 by Tom Tromey
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Initial revision 

From-SVN: r104179
parent c4bea017
Showing with 3351 additions and 0 deletions
zlib/contrib/ada/buffer_demo.adb 0 → 100644
----------------------------------------------------------------
-- ZLib for Ada thick binding. --
-- --
-- Copyright (C) 2002-2004 Dmitriy Anisimkov --
-- --
-- Open source license information is in the zlib.ads file. --
----------------------------------------------------------------
--
-- $Id: buffer_demo.adb,v 1.3 2004/09/06 06:55:35 vagul Exp $
-- This demo program provided by Dr Steve Sangwine <sjs@essex.ac.uk>
--
-- Demonstration of a problem with Zlib-Ada (already fixed) when a buffer
-- of exactly the correct size is used for decompressed data, and the last
-- few bytes passed in to Zlib are checksum bytes.
-- This program compresses a string of text, and then decompresses the
-- compressed text into a buffer of the same size as the original text.
with Ada.Streams; use Ada.Streams;
with Ada.Text_IO;
with ZLib; use ZLib;
procedure Buffer_Demo is
EOL : Character renames ASCII.LF;
Text : constant String
:= "Four score and seven years ago our fathers brought forth," & EOL &
"upon this continent, a new nation, conceived in liberty," & EOL &
"and dedicated to the proposition that `all men are created equal'.";
Source : Stream_Element_Array (1 .. Text'Length);
for Source'Address use Text'Address;
begin
Ada.Text_IO.Put (Text);
Ada.Text_IO.New_Line;
Ada.Text_IO.Put_Line
("Uncompressed size : " & Positive'Image (Text'Length) & " bytes");
declare
Compressed_Data : Stream_Element_Array (1 .. Text'Length);
L : Stream_Element_Offset;
begin
Compress : declare
Compressor : Filter_Type;
I : Stream_Element_Offset;
begin
Deflate_Init (Compressor);
-- Compress the whole of T at once.
Translate (Compressor, Source, I, Compressed_Data, L, Finish);
pragma Assert (I = Source'Last);
Close (Compressor);
Ada.Text_IO.Put_Line
("Compressed size : "
& Stream_Element_Offset'Image (L) & " bytes");
end Compress;
-- Now we decompress the data, passing short blocks of data to Zlib
-- (because this demonstrates the problem - the last block passed will
-- contain checksum information and there will be no output, only a
-- check inside Zlib that the checksum is correct).
Decompress : declare
Decompressor : Filter_Type;
Uncompressed_Data : Stream_Element_Array (1 .. Text'Length);
Block_Size : constant := 4;
-- This makes sure that the last block contains
-- only Adler checksum data.
P : Stream_Element_Offset := Compressed_Data'First - 1;
O : Stream_Element_Offset;
begin
Inflate_Init (Decompressor);
loop
Translate
(Decompressor,
Compressed_Data
(P + 1 .. Stream_Element_Offset'Min (P + Block_Size, L)),
P,
Uncompressed_Data
(Total_Out (Decompressor) + 1 .. Uncompressed_Data'Last),
O,
No_Flush);
Ada.Text_IO.Put_Line
("Total in : " & Count'Image (Total_In (Decompressor)) &
", out : " & Count'Image (Total_Out (Decompressor)));
exit when P = L;
end loop;
Ada.Text_IO.New_Line;
Ada.Text_IO.Put_Line
("Decompressed text matches original text : "
& Boolean'Image (Uncompressed_Data = Source));
end Decompress;
end;
end Buffer_Demo;
zlib/contrib/dotzlib/DotZLib.build 0 → 100644
<?xml version="1.0" encoding="utf-8" ?>
<project name="DotZLib" default="build" basedir="./DotZLib">
<description>A .Net wrapper library around ZLib1.dll</description>
<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
<property name="build.root" value="bin" />
<property name="debug" value="true" />
<property name="nunit" value="true" />
<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
<target name="clean" description="Remove all generated files">
<delete dir="${build.root}" failonerror="false" />
</target>
<target name="build" description="compiles the source code">
<mkdir dir="${build.folder}" />
<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
<references basedir="${nunit.location}">
<includes if="${nunit}" name="nunit.framework.dll" />
</references>
<sources>
<includes name="*.cs" />
<excludes name="UnitTests.cs" unless="${nunit}" />
</sources>
<arg value="/d:nunit" if="${nunit}" />
</csc>
</target>
</project>
\ No newline at end of file
zlib/contrib/dotzlib/DotZLib.sln 0 → 100644
Microsoft Visual Studio Solution File, Format Version 8.00
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
ProjectSection(ProjectDependencies) = postProject
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfiguration) = preSolution
Debug = Debug
Release = Release
EndGlobalSection
GlobalSection(ProjectConfiguration) = postSolution
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET
{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
EndGlobalSection
GlobalSection(ExtensibilityAddIns) = postSolution
EndGlobalSection
EndGlobal
zlib/contrib/dotzlib/DotZLib/AssemblyInfo.cs 0 → 100644
using System.Reflection;
using System.Runtime.CompilerServices;
//
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
//
[assembly: AssemblyTitle("DotZLib")]
[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("Henrik Ravn")]
[assembly: AssemblyProduct("")]
[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
//
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Revision and Build Numbers
// by using the '*' as shown below:
[assembly: AssemblyVersion("1.0.*")]
//
// In order to sign your assembly you must specify a key to use. Refer to the
// Microsoft .NET Framework documentation for more information on assembly signing.
//
// Use the attributes below to control which key is used for signing.
//
// Notes:
// (*) If no key is specified, the assembly is not signed.
// (*) KeyName refers to a key that has been installed in the Crypto Service
// Provider (CSP) on your machine. KeyFile refers to a file which contains
// a key.
// (*) If the KeyFile and the KeyName values are both specified, the
// following processing occurs:
// (1) If the KeyName can be found in the CSP, that key is used.
// (2) If the KeyName does not exist and the KeyFile does exist, the key
// in the KeyFile is installed into the CSP and used.
// (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
// When specifying the KeyFile, the location of the KeyFile should be
// relative to the project output directory which is
// %Project Directory%\obj\<configuration>. For example, if your KeyFile is
// located in the project directory, you would specify the AssemblyKeyFile
// attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
// (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
// documentation for more information on this.
//
[assembly: AssemblyDelaySign(false)]
[assembly: AssemblyKeyFile("")]
[assembly: AssemblyKeyName("")]
zlib/contrib/dotzlib/DotZLib/ChecksumImpl.cs 0 → 100644
//
// © 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.Runtime.InteropServices;
using System.Text;
namespace DotZLib
{
#region ChecksumGeneratorBase
/// <summary>
/// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
/// </summary>
/// <example></example>
public abstract class ChecksumGeneratorBase : ChecksumGenerator
{
/// <summary>
/// The value of the current checksum
/// </summary>
protected uint _current;
/// <summary>
/// Initializes a new instance of the checksum generator base - the current checksum is
/// set to zero
/// </summary>
public ChecksumGeneratorBase()
{
_current = 0;
}
/// <summary>
/// Initializes a new instance of the checksum generator basewith a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public ChecksumGeneratorBase(uint initialValue)
{
_current = initialValue;
}
/// <summary>
/// Resets the current checksum to zero
/// </summary>
public void Reset() { _current = 0; }
/// <summary>
/// Gets the current checksum value
/// </summary>
public uint Value { get { return _current; } }
/// <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="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
/// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.
/// This is therefore the only method a derived class has to implement</remarks>
public abstract void Update(byte[] data, int offset, int count);
/// <summary>
/// Updates the current checksum with an array of bytes.
/// </summary>
/// <param name="data">The data to update the checksum with</param>
public void Update(byte[] data)
{
Update(data, 0, data.Length);
}
/// <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>
public void Update(string data)
{
Update(Encoding.UTF8.GetBytes(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>
public void Update(string data, Encoding encoding)
{
Update(encoding.GetBytes(data));
}
}
#endregion
#region CRC32
/// <summary>
/// Implements a CRC32 checksum generator
/// </summary>
public sealed class CRC32Checksum : ChecksumGeneratorBase
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint crc32(uint crc, int data, uint length);
#endregion
/// <summary>
/// Initializes a new instance of the CRC32 checksum generator
/// </summary>
public CRC32Checksum() : base() {}
/// <summary>
/// Initializes a new instance of the CRC32 checksum generator with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public CRC32Checksum(uint initialValue) : base(initialValue) {}
/// <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="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
public override void Update(byte[] data, int offset, int count)
{
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
_current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
}
finally
{
hData.Free();
}
}
}
#endregion
#region Adler
/// <summary>
/// Implements a checksum generator that computes the Adler checksum on data
/// </summary>
public sealed class AdlerChecksum : ChecksumGeneratorBase
{
#region DLL imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern uint adler32(uint adler, int data, uint length);
#endregion
/// <summary>
/// Initializes a new instance of the Adler checksum generator
/// </summary>
public AdlerChecksum() : base() {}
/// <summary>
/// Initializes a new instance of the Adler checksum generator with a specified value
/// </summary>
/// <param name="initialValue">The value to set the current checksum to</param>
public AdlerChecksum(uint initialValue) : base(initialValue) {}
/// <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="NullReferenceException"><c>data</c> is a null reference</exception>
/// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
public override void Update(byte[] data, int offset, int count)
{
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
_current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
}
finally
{
hData.Free();
}
}
}
#endregion
}
\ No newline at end of file
zlib/contrib/dotzlib/DotZLib/CircularBuffer.cs 0 → 100644
//
// 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.Diagnostics;
namespace DotZLib
{
/// <summary>
/// This class implements a circular buffer
/// </summary>
internal class CircularBuffer
{
#region Private data
private int _capacity;
private int _head;
private int _tail;
private int _size;
private byte[] _buffer;
#endregion
public CircularBuffer(int capacity)
{
Debug.Assert( capacity > 0 );
_buffer = new byte[capacity];
_capacity = capacity;
_head = 0;
_tail = 0;
_size = 0;
}
public int Size { get { return _size; } }
public int Put(byte[] source, int offset, int count)
{
Debug.Assert( count > 0 );
int trueCount = Math.Min(count, _capacity - Size);
for (int i = 0; i < trueCount; ++i)
_buffer[(_tail+i) % _capacity] = source[offset+i];
_tail += trueCount;
_tail %= _capacity;
_size += trueCount;
return trueCount;
}
public bool Put(byte b)
{
if (Size == _capacity) // no room
return false;
_buffer[_tail++] = b;
_tail %= _capacity;
++_size;
return true;
}
public int Get(byte[] destination, int offset, int count)
{
int trueCount = Math.Min(count,Size);
for (int i = 0; i < trueCount; ++i)
destination[offset + i] = _buffer[(_head+i) % _capacity];
_head += trueCount;
_head %= _capacity;
_size -= trueCount;
return trueCount;
}
public int Get()
{
if (Size == 0)
return -1;
int result = (int)_buffer[_head++ % _capacity];
--_size;
return result;
}
}
}
zlib/contrib/dotzlib/DotZLib/CodecBase.cs 0 → 100644
//
// 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.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements the common functionality needed for all <see cref="Codec"/>s
/// </summary>
public abstract class CodecBase : Codec, IDisposable
{
#region Data members
/// <summary>
/// Instance of the internal zlib buffer structure that is
/// passed to all functions in the zlib dll
/// </summary>
internal ZStream _ztream = new ZStream();
/// <summary>
/// True if the object instance has been disposed, false otherwise
/// </summary>
protected bool _isDisposed = false;
/// <summary>
/// The size of the internal buffers
/// </summary>
protected const int kBufferSize = 16384;
private byte[] _outBuffer = new byte[kBufferSize];
private byte[] _inBuffer = new byte[kBufferSize];
private GCHandle _hInput;
private GCHandle _hOutput;
private uint _checksum = 0;
#endregion
/// <summary>
/// Initializes a new instance of the <c>CodeBase</c> class.
/// </summary>
public CodecBase()
{
try
{
_hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
_hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
}
catch (Exception)
{
CleanUp(false);
throw;
}
}
#region Codec Members
/// <summary>
/// Occurs when more processed data are available.
/// </summary>
public event DataAvailableHandler DataAvailable;
/// <summary>
/// Fires the <see cref="DataAvailable"/> event
/// </summary>
protected void OnDataAvailable()
{
if (_ztream.total_out > 0)
{
if (DataAvailable != null)
DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
resetOutput();
}
}
/// <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>
public void Add(byte[] data)
{
Add(data,0,data.Length);
}
/// <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>
/// <remarks>This must be implemented by a derived class</remarks>
public abstract void Add(byte[] data, int offset, int count);
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
/// <remarks>This must be implemented by a derived class</remarks>
public abstract void Finish();
/// <summary>
/// Gets the checksum of the data that has been added so far
/// </summary>
public uint Checksum { get { return _checksum; } }
#endregion
#region Destructor & IDisposable stuff
/// <summary>
/// Destroys this instance
/// </summary>
~CodecBase()
{
CleanUp(false);
}
/// <summary>
/// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
/// </summary>
public void Dispose()
{
CleanUp(true);
}
/// <summary>
/// Performs any codec specific cleanup
/// </summary>
/// <remarks>This must be implemented by a derived class</remarks>
protected abstract void CleanUp();
// performs the release of the handles and calls the dereived CleanUp()
private void CleanUp(bool isDisposing)
{
if (!_isDisposed)
{
CleanUp();
if (_hInput.IsAllocated)
_hInput.Free();
if (_hOutput.IsAllocated)
_hOutput.Free();
_isDisposed = true;
}
}
#endregion
#region Helper methods
/// <summary>
/// Copies a number of bytes to the internal codec buffer - ready for proccesing
/// </summary>
/// <param name="data">The byte array that contains the data to copy</param>
/// <param name="startIndex">The index of the first byte to copy</param>
/// <param name="count">The number of bytes to copy from <c>data</c></param>
protected void copyInput(byte[] data, int startIndex, int count)
{
Array.Copy(data, startIndex, _inBuffer,0, count);
_ztream.next_in = _hInput.AddrOfPinnedObject();
_ztream.total_in = 0;
_ztream.avail_in = (uint)count;
}
/// <summary>
/// Resets the internal output buffers to a known state - ready for processing
/// </summary>
protected void resetOutput()
{
_ztream.total_out = 0;
_ztream.avail_out = kBufferSize;
_ztream.next_out = _hOutput.AddrOfPinnedObject();
}
/// <summary>
/// Updates the running checksum property
/// </summary>
/// <param name="newSum">The new checksum value</param>
protected void setChecksum(uint newSum)
{
_checksum = newSum;
}
#endregion
}
}
zlib/contrib/dotzlib/DotZLib/Deflater.cs 0 → 100644
//
// 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.Diagnostics;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a data compressor, using the deflate algorithm in the ZLib dll
/// </summary>
public sealed class Deflater : CodecBase
{
#region Dll imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflate(ref ZStream sz, int flush);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflateReset(ref ZStream sz);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int deflateEnd(ref ZStream sz);
#endregion
/// <summary>
/// Constructs an new instance of the <c>Deflater</c>
/// </summary>
/// <param name="level">The compression level to use for this <c>Deflater</c></param>
public Deflater(CompressLevel level) : base()
{
int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
if (retval != 0)
throw new ZLibException(retval, "Could not initialize deflater");
resetOutput();
}
/// <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>
public override void Add(byte[] data, int offset, int count)
{
if (data == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
int total = count;
int inputIndex = offset;
int err = 0;
while (err >= 0 && inputIndex < total)
{
copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
while (err >= 0 && _ztream.avail_in > 0)
{
err = deflate(ref _ztream, (int)FlushTypes.None);
if (err == 0)
while (_ztream.avail_out == 0)
{
OnDataAvailable();
err = deflate(ref _ztream, (int)FlushTypes.None);
}
inputIndex += (int)_ztream.total_in;
}
}
setChecksum( _ztream.adler );
}
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
public override void Finish()
{
int err;
do
{
err = deflate(ref _ztream, (int)FlushTypes.Finish);
OnDataAvailable();
}
while (err == 0);
setChecksum( _ztream.adler );
deflateReset(ref _ztream);
resetOutput();
}
/// <summary>
/// Closes the internal zlib deflate stream
/// </summary>
protected override void CleanUp() { deflateEnd(ref _ztream); }
}
}
zlib/contrib/dotzlib/DotZLib/DotZLib.csproj 0 → 100644
<VisualStudioProject>
<CSHARP
ProjectType = "Local"
ProductVersion = "7.10.3077"
SchemaVersion = "2.0"
ProjectGuid = "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
>
<Build>
<Settings
ApplicationIcon = ""
AssemblyKeyContainerName = ""
AssemblyName = "DotZLib"
AssemblyOriginatorKeyFile = ""
DefaultClientScript = "JScript"
DefaultHTMLPageLayout = "Grid"
DefaultTargetSchema = "IE50"
DelaySign = "false"
OutputType = "Library"
PreBuildEvent = ""
PostBuildEvent = ""
RootNamespace = "DotZLib"
RunPostBuildEvent = "OnBuildSuccess"
StartupObject = ""
>
<Config
Name = "Debug"
AllowUnsafeBlocks = "false"
BaseAddress = "285212672"
CheckForOverflowUnderflow = "false"
ConfigurationOverrideFile = ""
DefineConstants = "DEBUG;TRACE"
DocumentationFile = "docs\DotZLib.xml"
DebugSymbols = "true"
FileAlignment = "4096"
IncrementalBuild = "false"
NoStdLib = "false"
NoWarn = "1591"
Optimize = "false"
OutputPath = "bin\Debug\"
RegisterForComInterop = "false"
RemoveIntegerChecks = "false"
TreatWarningsAsErrors = "false"
WarningLevel = "4"
/>
<Config
Name = "Release"
AllowUnsafeBlocks = "false"
BaseAddress = "285212672"
CheckForOverflowUnderflow = "false"
ConfigurationOverrideFile = ""
DefineConstants = "TRACE"
DocumentationFile = "docs\DotZLib.xml"
DebugSymbols = "false"
FileAlignment = "4096"
IncrementalBuild = "false"
NoStdLib = "false"
NoWarn = ""
Optimize = "true"
OutputPath = "bin\Release\"
RegisterForComInterop = "false"
RemoveIntegerChecks = "false"
TreatWarningsAsErrors = "false"
WarningLevel = "4"
/>
</Settings>
<References>
<Reference
Name = "System"
AssemblyName = "System"
HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.dll"
/>
<Reference
Name = "System.Data"
AssemblyName = "System.Data"
HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Data.dll"
/>
<Reference
Name = "System.XML"
AssemblyName = "System.Xml"
HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.XML.dll"
/>
<Reference
Name = "nunit.framework"
AssemblyName = "nunit.framework"
HintPath = "E:\apps\NUnit V2.1\\bin\nunit.framework.dll"
AssemblyFolderKey = "hklm\dn\nunit.framework"
/>
</References>
</Build>
<Files>
<Include>
<File
RelPath = "AssemblyInfo.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "ChecksumImpl.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "CircularBuffer.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "CodecBase.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "Deflater.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "DotZLib.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "GZipStream.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "Inflater.cs"
SubType = "Code"
BuildAction = "Compile"
/>
<File
RelPath = "UnitTests.cs"
SubType = "Code"
BuildAction = "Compile"
/>
</Include>
</Files>
</CSHARP>
</VisualStudioProject>
zlib/contrib/dotzlib/DotZLib/Inflater.cs 0 → 100644
//
// © 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.Diagnostics;
using System.Runtime.InteropServices;
namespace DotZLib
{
/// <summary>
/// Implements a data decompressor, using the inflate algorithm in the ZLib dll
/// </summary>
public class Inflater : CodecBase
{
#region Dll imports
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
private static extern int inflateInit_(ref ZStream sz, string vs, int size);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflate(ref ZStream sz, int flush);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflateReset(ref ZStream sz);
[DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
private static extern int inflateEnd(ref ZStream sz);
#endregion
/// <summary>
/// Constructs an new instance of the <c>Inflater</c>
/// </summary>
public Inflater() : base()
{
int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
if (retval != 0)
throw new ZLibException(retval, "Could not initialize inflater");
resetOutput();
}
/// <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>
public override void Add(byte[] data, int offset, int count)
{
if (data == null) throw new ArgumentNullException();
if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
if ((offset+count) > data.Length) throw new ArgumentException();
int total = count;
int inputIndex = offset;
int err = 0;
while (err >= 0 && inputIndex < total)
{
copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
err = inflate(ref _ztream, (int)FlushTypes.None);
if (err == 0)
while (_ztream.avail_out == 0)
{
OnDataAvailable();
err = inflate(ref _ztream, (int)FlushTypes.None);
}
inputIndex += (int)_ztream.total_in;
}
setChecksum( _ztream.adler );
}
/// <summary>
/// Finishes up any pending data that needs to be processed and handled.
/// </summary>
public override void Finish()
{
int err;
do
{
err = inflate(ref _ztream, (int)FlushTypes.Finish);
OnDataAvailable();
}
while (err == 0);
setChecksum( _ztream.adler );
inflateReset(ref _ztream);
resetOutput();
}
/// <summary>
/// Closes the internal zlib inflate stream
/// </summary>
protected override void CleanUp() { inflateEnd(ref _ztream); }
}
}
zlib/contrib/dotzlib/DotZLib/UnitTests.cs 0 → 100644
//
// 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.Collections;
using System.IO;
// uncomment the define below to include unit tests
//#define nunit
#if nunit
using NUnit.Framework;
// Unit tests for the DotZLib class library
// ----------------------------------------
//
// Use this with NUnit 2 from http://www.nunit.org
//
namespace DotZLibTests
{
using DotZLib;
// helper methods
internal class Utils
{
public static bool byteArrEqual( byte[] lhs, byte[] rhs )
{
if (lhs.Length != rhs.Length)
return false;
for (int i = lhs.Length-1; i >= 0; --i)
if (lhs[i] != rhs[i])
return false;
return true;
}
}
[TestFixture]
public class CircBufferTests
{
#region Circular buffer tests
[Test]
public void SinglePutGet()
{
CircularBuffer buf = new CircularBuffer(10);
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
Assert.IsTrue(buf.Put( 1 ));
Assert.AreEqual( 1, buf.Size );
Assert.AreEqual( 1, buf.Get() );
Assert.AreEqual( 0, buf.Size );
Assert.AreEqual( -1, buf.Get() );
}
[Test]
public void BlockPutGet()
{
CircularBuffer buf = new CircularBuffer(10);
byte[] arr = {1,2,3,4,5,6,7,8,9,10};
Assert.AreEqual( 10, buf.Put(arr,0,10) );
Assert.AreEqual( 10, buf.Size );
Assert.IsFalse( buf.Put(11) );
Assert.AreEqual( 1, buf.Get() );
Assert.IsTrue( buf.Put(11) );
byte[] arr2 = (byte[])arr.Clone();
Assert.AreEqual( 9, buf.Get(arr2,1,9) );
Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
}
#endregion
}
[TestFixture]
public class ChecksumTests
{
#region CRC32 Tests
[Test]
public void CRC32_Null()
{
CRC32Checksum crc32 = new CRC32Checksum();
Assert.AreEqual( 0, crc32.Value );
crc32 = new CRC32Checksum(1);
Assert.AreEqual( 1, crc32.Value );
crc32 = new CRC32Checksum(556);
Assert.AreEqual( 556, crc32.Value );
}
[Test]
public void CRC32_Data()
{
CRC32Checksum crc32 = new CRC32Checksum();
byte[] data = { 1,2,3,4,5,6,7 };
crc32.Update(data);
Assert.AreEqual( 0x70e46888, crc32.Value );
crc32 = new CRC32Checksum();
crc32.Update("penguin");
Assert.AreEqual( 0x0e5c1a120, crc32.Value );
crc32 = new CRC32Checksum(1);
crc32.Update("penguin");
Assert.AreEqual(0x43b6aa94, crc32.Value);
}
#endregion
#region Adler tests
[Test]
public void Adler_Null()
{
AdlerChecksum adler = new AdlerChecksum();
Assert.AreEqual(0, adler.Value);
adler = new AdlerChecksum(1);
Assert.AreEqual( 1, adler.Value );
adler = new AdlerChecksum(556);
Assert.AreEqual( 556, adler.Value );
}
[Test]
public void Adler_Data()
{
AdlerChecksum adler = new AdlerChecksum(1);
byte[] data = { 1,2,3,4,5,6,7 };
adler.Update(data);
Assert.AreEqual( 0x5b001d, adler.Value );
adler = new AdlerChecksum();
adler.Update("penguin");
Assert.AreEqual(0x0bcf02f6, adler.Value );
adler = new AdlerChecksum(1);
adler.Update("penguin");
Assert.AreEqual(0x0bd602f7, adler.Value);
}
#endregion
}
[TestFixture]
public class InfoTests
{
#region Info tests
[Test]
public void Info_Version()
{
Info info = new Info();
Assert.AreEqual("1.2.3", Info.Version);
Assert.AreEqual(32, info.SizeOfUInt);
Assert.AreEqual(32, info.SizeOfULong);
Assert.AreEqual(32, info.SizeOfPointer);
Assert.AreEqual(32, info.SizeOfOffset);
}
#endregion
}
[TestFixture]
public class DeflateInflateTests
{
#region Deflate tests
[Test]
public void Deflate_Init()
{
using (Deflater def = new Deflater(CompressLevel.Default))
{
}
}
private ArrayList compressedData = new ArrayList();
private uint adler1;
private ArrayList uncompressedData = new ArrayList();
private uint adler2;
public void CDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
compressedData.Add(data[i+startIndex]);
}
[Test]
public void Deflate_Compress()
{
compressedData.Clear();
byte[] testData = new byte[35000];
for (int i = 0; i < testData.Length; ++i)
testData[i] = 5;
using (Deflater def = new Deflater((CompressLevel)5))
{
def.DataAvailable += new DataAvailableHandler(CDataAvail);
def.Add(testData);
def.Finish();
adler1 = def.Checksum;
}
}
#endregion
#region Inflate tests
[Test]
public void Inflate_Init()
{
using (Inflater inf = new Inflater())
{
}
}
private void DDataAvail(byte[] data, int startIndex, int count)
{
for (int i = 0; i < count; ++i)
uncompressedData.Add(data[i+startIndex]);
}
[Test]
public void Inflate_Expand()
{
uncompressedData.Clear();
using (Inflater inf = new Inflater())
{
inf.DataAvailable += new DataAvailableHandler(DDataAvail);
inf.Add((byte[])compressedData.ToArray(typeof(byte)));
inf.Finish();
adler2 = inf.Checksum;
}
Assert.AreEqual( adler1, adler2 );
}
#endregion
}
[TestFixture]
public class GZipStreamTests
{
#region GZipStream test
[Test]
public void GZipStream_WriteRead()
{
using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
{
BinaryWriter writer = new BinaryWriter(gzOut);
writer.Write("hi there");
writer.Write(Math.PI);
writer.Write(42);
}
using (GZipStream gzIn = new GZipStream("gzstream.gz"))
{
BinaryReader reader = new BinaryReader(gzIn);
string s = reader.ReadString();
Assert.AreEqual("hi there",s);
double d = reader.ReadDouble();
Assert.AreEqual(Math.PI, d);
int i = reader.ReadInt32();
Assert.AreEqual(42,i);
}
}
#endregion
}
}
#endif
\ No newline at end of file
zlib/contrib/dotzlib/LICENSE_1_0.txt 0 → 100644
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
\ No newline at end of file
zlib/contrib/dotzlib/readme.txt 0 → 100644
This directory contains a .Net wrapper class library for the ZLib1.dll
The wrapper includes support for inflating/deflating memory buffers,
.Net streaming wrappers for the gz streams part of zlib, and wrappers
for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
Directory structure:
--------------------
LICENSE_1_0.txt - License file.
readme.txt - This file.
DotZLib.chm - Class library documentation
DotZLib.build - NAnt build file
DotZLib.sln - Microsoft Visual Studio 2003 solution file
DotZLib\*.cs - Source files for the class library
Unit tests:
-----------
The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
To include unit tests in the build, define nunit before building.
Build instructions:
-------------------
1. Using Visual Studio.Net 2003:
Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
you are building the release or debug version of the library. Check
DotZLib/UnitTests.cs for instructions on how to include unit tests in the
build.
2. Using NAnt:
Open a command prompt with access to the build environment and run nant
in the same directory as the DotZLib.build file.
You can define 2 properties on the nant command-line to control the build:
debug={true|false} to toggle between release/debug builds (default=true).
nunit={true|false} to include or esclude unit tests (default=true).
Also the target clean will remove binaries.
Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
or ./DotZLib/bin/debug, depending on whether you are building the release
or debug version of the library.
Examples:
nant -D:debug=false -D:nunit=false
will build a release mode version of the library without unit tests.
nant
will build a debug version of the library with unit tests
nant clean
will remove all previously built files.
---------------------------------
Copyright (c) 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)
zlib/contrib/masmx64/bld_ml64.bat 0 → 100644
ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
zlib/contrib/masmx64/inffas8664.c 0 → 100644
/* inffas8664.c is a hand tuned assembler version of inffast.c - fast decoding
* version for AMD64 on Windows using Microsoft C compiler
*
* Copyright (C) 1995-2003 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Copyright (C) 2003 Chris Anderson <christop@charm.net>
* Please use the copyright conditions above.
*
* 2005 - Adaptation to Microsoft C Compiler for AMD64 by Gilles Vollant
*
* inffas8664.c call function inffas8664fnc in inffasx64.asm
* inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
*
* Dec-29-2003 -- I added AMD64 inflate asm support. This version is also
* slightly quicker on x86 systems because, instead of using rep movsb to copy
* data, it uses rep movsw, which moves data in 2-byte chunks instead of single
* bytes. I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
* from http://fedora.linux.duke.edu/fc1_x86_64
* which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
* 1GB ram. The 64-bit version is about 4% faster than the 32-bit version,
* when decompressing mozilla-source-1.3.tar.gz.
*
* Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
* the gcc -S output of zlib-1.2.0/inffast.c. Zlib-1.2.0 is in beta release at
* the moment. I have successfully compiled and tested this code with gcc2.96,
* gcc3.2, icc5.0, msvc6.0. It is very close to the speed of inffast.S
* compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
* enabled. I will attempt to merge the MMX code into this version. Newer
* versions of this and inffast.S can be found at
* http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
*
*/
#include <stdio.h>
#include "zutil.h"
#include "inftrees.h"
#include "inflate.h"
#include "inffast.h"
/* Mark Adler's comments from inffast.c: */
/*
Decode literal, length, and distance codes and write out the resulting
literal and match bytes until either not enough input or output is
available, an end-of-block is encountered, or a data error is encountered.
When large enough input and output buffers are supplied to inflate(), for
example, a 16K input buffer and a 64K output buffer, more than 95% of the
inflate execution time is spent in this routine.
Entry assumptions:
state->mode == LEN
strm->avail_in >= 6
strm->avail_out >= 258
start >= strm->avail_out
state->bits < 8
On return, state->mode is one of:
LEN -- ran out of enough output space or enough available input
TYPE -- reached end of block code, inflate() to interpret next block
BAD -- error in block data
Notes:
- The maximum input bits used by a length/distance pair is 15 bits for the
length code, 5 bits for the length extra, 15 bits for the distance code,
and 13 bits for the distance extra. This totals 48 bits, or six bytes.
Therefore if strm->avail_in >= 6, then there is enough input to avoid
checking for available input while decoding.
- The maximum bytes that a single length/distance pair can output is 258
bytes, which is the maximum length that can be coded. inflate_fast()
requires strm->avail_out >= 258 for each loop to avoid checking for
output space.
*/
typedef struct inffast_ar {
/* 64 32 x86 x86_64 */
/* ar offset register */
/* 0 0 */ void *esp; /* esp save */
/* 8 4 */ void *ebp; /* ebp save */
/* 16 8 */ unsigned char FAR *in; /* esi rsi local strm->next_in */
/* 24 12 */ unsigned char FAR *last; /* r9 while in < last */
/* 32 16 */ unsigned char FAR *out; /* edi rdi local strm->next_out */
/* 40 20 */ unsigned char FAR *beg; /* inflate()'s init next_out */
/* 48 24 */ unsigned char FAR *end; /* r10 while out < end */
/* 56 28 */ unsigned char FAR *window;/* size of window, wsize!=0 */
/* 64 32 */ code const FAR *lcode; /* ebp rbp local strm->lencode */
/* 72 36 */ code const FAR *dcode; /* r11 local strm->distcode */
/* 80 40 */ size_t /*unsigned long */hold; /* edx rdx local strm->hold */
/* 88 44 */ unsigned bits; /* ebx rbx local strm->bits */
/* 92 48 */ unsigned wsize; /* window size */
/* 96 52 */ unsigned write; /* window write index */
/*100 56 */ unsigned lmask; /* r12 mask for lcode */
/*104 60 */ unsigned dmask; /* r13 mask for dcode */
/*108 64 */ unsigned len; /* r14 match length */
/*112 68 */ unsigned dist; /* r15 match distance */
/*116 72 */ unsigned status; /* set when state chng*/
} type_ar;
#ifdef ASMINF
void inflate_fast(strm, start)
z_streamp strm;
unsigned start; /* inflate()'s starting value for strm->avail_out */
{
struct inflate_state FAR *state;
type_ar ar;
void inffas8664fnc(struct inffast_ar * par);
#if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))
#define PAD_AVAIL_IN 6
#define PAD_AVAIL_OUT 258
#else
#define PAD_AVAIL_IN 5
#define PAD_AVAIL_OUT 257
#endif
/* copy state to local variables */
state = (struct inflate_state FAR *)strm->state;
ar.in = strm->next_in;
ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
ar.out = strm->next_out;
ar.beg = ar.out - (start - strm->avail_out);
ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
ar.wsize = state->wsize;
ar.write = state->write;
ar.window = state->window;
ar.hold = state->hold;
ar.bits = state->bits;
ar.lcode = state->lencode;
ar.dcode = state->distcode;
ar.lmask = (1U << state->lenbits) - 1;
ar.dmask = (1U << state->distbits) - 1;
/* decode literals and length/distances until end-of-block or not enough
input data or output space */
/* align in on 1/2 hold size boundary */
while (((size_t)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
ar.hold += (unsigned long)*ar.in++ << ar.bits;
ar.bits += 8;
}
inffas8664fnc(&ar);
if (ar.status > 1) {
if (ar.status == 2)
strm->msg = "invalid literal/length code";
else if (ar.status == 3)
strm->msg = "invalid distance code";
else
strm->msg = "invalid distance too far back";
state->mode = BAD;
}
else if ( ar.status == 1 ) {
state->mode = TYPE;
}
/* return unused bytes (on entry, bits < 8, so in won't go too far back) */
ar.len = ar.bits >> 3;
ar.in -= ar.len;
ar.bits -= ar.len << 3;
ar.hold &= (1U << ar.bits) - 1;
/* update state and return */
strm->next_in = ar.in;
strm->next_out = ar.out;
strm->avail_in = (unsigned)(ar.in < ar.last ?
PAD_AVAIL_IN + (ar.last - ar.in) :
PAD_AVAIL_IN - (ar.in - ar.last));
strm->avail_out = (unsigned)(ar.out < ar.end ?
PAD_AVAIL_OUT + (ar.end - ar.out) :
PAD_AVAIL_OUT - (ar.out - ar.end));
state->hold = (unsigned long)ar.hold;
state->bits = ar.bits;
return;
}
#endif
zlib/contrib/masmx64/readme.txt 0 → 100644
Summary
-------
This directory contains ASM implementations of the functions
longest_match() and inflate_fast(), for 64 bits x86 (both AMD64 and Intel EM64t),
for use with Microsoft Macro Assembler (x64) for AMD64 and Microsoft C++ 64 bits.
gvmat64.asm is written by Gilles Vollant (2005), by using Brian Raiter 686/32 bits
assembly optimized version from Jean-loup Gailly original longest_match function
inffasx64.asm and inffas8664.c were written by Chris Anderson, by optimizing
original function from Mark Adler
Use instructions
----------------
Copy these files into the zlib source directory.
define ASMV and ASMINF in your project. Include inffas8664.c in your source tree,
and inffasx64.obj and gvmat64.obj as object to link.
Build instructions
------------------
run bld_64.bat with Microsoft Macro Assembler (x64) for AMD64 (ml64.exe)
ml64.exe is given with Visual Studio 2005, Windows 2003 server DDK
You can get Windows 2003 server DDK with ml64 and cl for AMD64 from
http://www.microsoft.com/whdc/devtools/ddk/default.mspx for low price)
zlib/contrib/masmx86/bld_ml32.bat 0 → 100644
ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
ml /coff /Zi /c /Flinffas32.lst inffas32.asm
zlib/contrib/minizip/mztools.c 0 → 100644
/*
Additional tools for Minizip
Code: Xavier Roche '2004
License: Same as ZLIB (www.gzip.org)
*/
/* Code */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zlib.h"
#include "unzip.h"
#define READ_8(adr) ((unsigned char)*(adr))
#define READ_16(adr) ( READ_8(adr) | (READ_8(adr+1) << 8) )
#define READ_32(adr) ( READ_16(adr) | (READ_16((adr)+2) << 16) )
#define WRITE_8(buff, n) do { \
*((unsigned char*)(buff)) = (unsigned char) ((n) & 0xff); \
} while(0)
#define WRITE_16(buff, n) do { \
WRITE_8((unsigned char*)(buff), n); \
WRITE_8(((unsigned char*)(buff)) + 1, (n) >> 8); \
} while(0)
#define WRITE_32(buff, n) do { \
WRITE_16((unsigned char*)(buff), (n) & 0xffff); \
WRITE_16((unsigned char*)(buff) + 2, (n) >> 16); \
} while(0)
extern int ZEXPORT unzRepair(file, fileOut, fileOutTmp, nRecovered, bytesRecovered)
const char* file;
const char* fileOut;
const char* fileOutTmp;
uLong* nRecovered;
uLong* bytesRecovered;
{
int err = Z_OK;
FILE* fpZip = fopen(file, "rb");
FILE* fpOut = fopen(fileOut, "wb");
FILE* fpOutCD = fopen(fileOutTmp, "wb");
if (fpZip != NULL && fpOut != NULL) {
int entries = 0;
uLong totalBytes = 0;
char header[30];
char filename[256];
char extra[1024];
int offset = 0;
int offsetCD = 0;
while ( fread(header, 1, 30, fpZip) == 30 ) {
int currentOffset = offset;
/* File entry */
if (READ_32(header) == 0x04034b50) {
unsigned int version = READ_16(header + 4);
unsigned int gpflag = READ_16(header + 6);
unsigned int method = READ_16(header + 8);
unsigned int filetime = READ_16(header + 10);
unsigned int filedate = READ_16(header + 12);
unsigned int crc = READ_32(header + 14); /* crc */
unsigned int cpsize = READ_32(header + 18); /* compressed size */
unsigned int uncpsize = READ_32(header + 22); /* uncompressed sz */
unsigned int fnsize = READ_16(header + 26); /* file name length */
unsigned int extsize = READ_16(header + 28); /* extra field length */
filename[0] = extra[0] = '\0';
/* Header */
if (fwrite(header, 1, 30, fpOut) == 30) {
offset += 30;
} else {
err = Z_ERRNO;
break;
}
/* Filename */
if (fnsize > 0) {
if (fread(filename, 1, fnsize, fpZip) == fnsize) {
if (fwrite(filename, 1, fnsize, fpOut) == fnsize) {
offset += fnsize;
} else {
err = Z_ERRNO;
break;
}
} else {
err = Z_ERRNO;
break;
}
} else {
err = Z_STREAM_ERROR;
break;
}
/* Extra field */
if (extsize > 0) {
if (fread(extra, 1, extsize, fpZip) == extsize) {
if (fwrite(extra, 1, extsize, fpOut) == extsize) {
offset += extsize;
} else {
err = Z_ERRNO;
break;
}
} else {
err = Z_ERRNO;
break;
}
}
/* Data */
{
int dataSize = cpsize;
if (dataSize == 0) {
dataSize = uncpsize;
}
if (dataSize > 0) {
char* data = malloc(dataSize);
if (data != NULL) {
if ((int)fread(data, 1, dataSize, fpZip) == dataSize) {
if ((int)fwrite(data, 1, dataSize, fpOut) == dataSize) {
offset += dataSize;
totalBytes += dataSize;
} else {
err = Z_ERRNO;
}
} else {
err = Z_ERRNO;
}
free(data);
if (err != Z_OK) {
break;
}
} else {
err = Z_MEM_ERROR;
break;
}
}
}
/* Central directory entry */
{
char header[46];
char* comment = "";
int comsize = (int) strlen(comment);
WRITE_32(header, 0x02014b50);
WRITE_16(header + 4, version);
WRITE_16(header + 6, version);
WRITE_16(header + 8, gpflag);
WRITE_16(header + 10, method);
WRITE_16(header + 12, filetime);
WRITE_16(header + 14, filedate);
WRITE_32(header + 16, crc);
WRITE_32(header + 20, cpsize);
WRITE_32(header + 24, uncpsize);
WRITE_16(header + 28, fnsize);
WRITE_16(header + 30, extsize);
WRITE_16(header + 32, comsize);
WRITE_16(header + 34, 0); /* disk # */
WRITE_16(header + 36, 0); /* int attrb */
WRITE_32(header + 38, 0); /* ext attrb */
WRITE_32(header + 42, currentOffset);
/* Header */
if (fwrite(header, 1, 46, fpOutCD) == 46) {
offsetCD += 46;
/* Filename */
if (fnsize > 0) {
if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) {
offsetCD += fnsize;
} else {
err = Z_ERRNO;
break;
}
} else {
err = Z_STREAM_ERROR;
break;
}
/* Extra field */
if (extsize > 0) {
if (fwrite(extra, 1, extsize, fpOutCD) == extsize) {
offsetCD += extsize;
} else {
err = Z_ERRNO;
break;
}
}
/* Comment field */
if (comsize > 0) {
if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) {
offsetCD += comsize;
} else {
err = Z_ERRNO;
break;
}
}
} else {
err = Z_ERRNO;
break;
}
}
/* Success */
entries++;
} else {
break;
}
}
/* Final central directory */
{
int entriesZip = entries;
char header[22];
char* comment = ""; // "ZIP File recovered by zlib/minizip/mztools";
int comsize = (int) strlen(comment);
if (entriesZip > 0xffff) {
entriesZip = 0xffff;
}
WRITE_32(header, 0x06054b50);
WRITE_16(header + 4, 0); /* disk # */
WRITE_16(header + 6, 0); /* disk # */
WRITE_16(header + 8, entriesZip); /* hack */
WRITE_16(header + 10, entriesZip); /* hack */
WRITE_32(header + 12, offsetCD); /* size of CD */
WRITE_32(header + 16, offset); /* offset to CD */
WRITE_16(header + 20, comsize); /* comment */
/* Header */
if (fwrite(header, 1, 22, fpOutCD) == 22) {
/* Comment field */
if (comsize > 0) {
if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) {
err = Z_ERRNO;
}
}
} else {
err = Z_ERRNO;
}
}
/* Final merge (file + central directory) */
fclose(fpOutCD);
if (err == Z_OK) {
fpOutCD = fopen(fileOutTmp, "rb");
if (fpOutCD != NULL) {
int nRead;
char buffer[8192];
while ( (nRead = (int)fread(buffer, 1, sizeof(buffer), fpOutCD)) > 0) {
if ((int)fwrite(buffer, 1, nRead, fpOut) != nRead) {
err = Z_ERRNO;
break;
}
}
fclose(fpOutCD);
}
}
/* Close */
fclose(fpZip);
fclose(fpOut);
/* Wipe temporary file */
(void)remove(fileOutTmp);
/* Number of recovered entries */
if (err == Z_OK) {
if (nRecovered != NULL) {
*nRecovered = entries;
}
if (bytesRecovered != NULL) {
*bytesRecovered = totalBytes;
}
}
} else {
err = Z_STREAM_ERROR;
}
return err;
}
zlib/contrib/minizip/mztools.h 0 → 100644
/*
Additional tools for Minizip
Code: Xavier Roche '2004
License: Same as ZLIB (www.gzip.org)
*/
#ifndef _zip_tools_H
#define _zip_tools_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ZLIB_H
#include "zlib.h"
#endif
#include "unzip.h"
/* Repair a ZIP file (missing central directory)
file: file to recover
fileOut: output file after recovery
fileOutTmp: temporary file name used for recovery
*/
extern int ZEXPORT unzRepair(const char* file,
const char* fileOut,
const char* fileOutTmp,
uLong* nRecovered,
uLong* bytesRecovered);
#endif
zlib/contrib/testzlib/testzlib.txt 0 → 100644
To build testzLib with Visual Studio 2005:
copy to a directory file from :
- root of zLib tree
- contrib/testzlib
- contrib/masmx86
- contrib/masmx64
- contrib/vstudio/vc7
and open testzlib8.sln
\ No newline at end of file
zlib/contrib/vstudio/vc7/testzlib.vcproj 0 → 100644
<?xml version="1.0" encoding = "Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="7.00"
Name="testZlibDll"
ProjectGUID="{AA6666AA-E09F-4135-9C0C-4FE50C3C654C}"
Keyword="Win32Proj">
<Platforms>
<Platform
Name="Win32"/>
</Platforms>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="Debug"
IntermediateDirectory="Debug"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\.."
PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE"
MinimalRebuild="TRUE"
BasicRuntimeChecks="3"
RuntimeLibrary="5"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="4"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/testzlib.exe"
LinkIncremental="2"
GenerateDebugInformation="TRUE"
ProgramDatabaseFile="$(OutDir)/testzlib.pdb"
SubSystem="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="Release"
IntermediateDirectory="Release"
ConfigurationType="1"
CharacterSet="2">
<Tool
Name="VCCLCompilerTool"
Optimization="2"
InlineFunctionExpansion="1"
OmitFramePointers="TRUE"
AdditionalIncludeDirectories="..\..\.."
PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE"
StringPooling="TRUE"
RuntimeLibrary="4"
EnableFunctionLevelLinking="TRUE"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="TRUE"
DebugInformationFormat="3"/>
<Tool
Name="VCCustomBuildTool"/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)/testzlib.exe"
LinkIncremental="1"
GenerateDebugInformation="TRUE"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
OptimizeForWindows98="1"
TargetMachine="1"/>
<Tool
Name="VCMIDLTool"/>
<Tool
Name="VCPostBuildEventTool"/>
<Tool
Name="VCPreBuildEventTool"/>
<Tool
Name="VCPreLinkEventTool"/>
<Tool
Name="VCResourceCompilerTool"/>
<Tool
Name="VCWebServiceProxyGeneratorTool"/>
<Tool
Name="VCWebDeploymentTool"/>
</Configuration>
</Configurations>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm">
<File
RelativePath="..\..\testzlib\testzlib.c">
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc">
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe">
</Filter>
<File
RelativePath="ReleaseDll\zlibwapi.lib">
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>
zlib/contrib/vstudio/vc8/zlib.rc 0 → 100644
#include <windows.h>
#define IDR_VERSION1 1
IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
FILEVERSION 1,2,3,0
PRODUCTVERSION 1,2,3,0
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
FILEFLAGS 0
FILEOS VOS_DOS_WINDOWS32
FILETYPE VFT_DLL
FILESUBTYPE 0 // not used
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904E4"
//language ID = U.S. English, char set = Windows, Multilingual
BEGIN
VALUE "FileDescription", "zlib data compression library\0"
VALUE "FileVersion", "1.2.3.0\0"
VALUE "InternalName", "zlib\0"
VALUE "OriginalFilename", "zlib.dll\0"
VALUE "ProductName", "ZLib.DLL\0"
VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
VALUE "LegalCopyright", "(C) 1995-2003 Jean-loup Gailly & Mark Adler\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x0409, 1252
END
END
zlib/contrib/vstudio/vc8/zlibvc.def 0 → 100644
VERSION 1.23
HEAPSIZE 1048576,8192
EXPORTS
adler32 @1
compress @2
crc32 @3
deflate @4
deflateCopy @5
deflateEnd @6
deflateInit2_ @7
deflateInit_ @8
deflateParams @9
deflateReset @10
deflateSetDictionary @11
gzclose @12
gzdopen @13
gzerror @14
gzflush @15
gzopen @16
gzread @17
gzwrite @18
inflate @19
inflateEnd @20
inflateInit2_ @21
inflateInit_ @22
inflateReset @23
inflateSetDictionary @24
inflateSync @25
uncompress @26
zlibVersion @27
gzprintf @28
gzputc @29
gzgetc @30
gzseek @31
gzrewind @32
gztell @33
gzeof @34
gzsetparams @35
zError @36
inflateSyncPoint @37
get_crc_table @38
compress2 @39
gzputs @40
gzgets @41
inflateCopy @42
inflateBackInit_ @43
inflateBack @44
inflateBackEnd @45
compressBound @46
deflateBound @47
gzclearerr @48
gzungetc @49
zlibCompileFlags @50
deflatePrime @51
unzOpen @61
unzClose @62
unzGetGlobalInfo @63
unzGetCurrentFileInfo @64
unzGoToFirstFile @65
unzGoToNextFile @66
unzOpenCurrentFile @67
unzReadCurrentFile @68
unzOpenCurrentFile3 @69
unztell @70
unzeof @71
unzCloseCurrentFile @72
unzGetGlobalComment @73
unzStringFileNameCompare @74
unzLocateFile @75
unzGetLocalExtrafield @76
unzOpen2 @77
unzOpenCurrentFile2 @78
unzOpenCurrentFilePassword @79
zipOpen @80
zipOpenNewFileInZip @81
zipWriteInFileInZip @82
zipCloseFileInZip @83
zipClose @84
zipOpenNewFileInZip2 @86
zipCloseFileInZipRaw @87
zipOpen2 @88
zipOpenNewFileInZip3 @89
unzGetFilePos @100
unzGoToFilePos @101
fill_win32_filefunc @110
zlib/examples/README.examples 0 → 100644
This directory contains examples of the use of zlib.
fitblk.c
compress just enough input to nearly fill a requested output size
- zlib isn't designed to do this, but fitblk does it anyway
gun.c
uncompress a gzip file
- illustrates the use of inflateBack() for high speed file-to-file
decompression using call-back functions
- is approximately twice as fast as gzip -d
- also provides Unix uncompress functionality, again twice as fast
gzappend.c
append to a gzip file
- illustrates the use of the Z_BLOCK flush parameter for inflate()
- illustrates the use of deflatePrime() to start at any bit
gzjoin.c
join gzip files without recalculating the crc or recompressing
- illustrates the use of the Z_BLOCK flush parameter for inflate()
- illustrates the use of crc32_combine()
gzlog.c
gzlog.h
efficiently maintain a message log file in gzip format
- illustrates use of raw deflate and Z_SYNC_FLUSH
- illustrates use of gzip header extra field
zlib_how.html
painfully comprehensive description of zpipe.c (see below)
- describes in excruciating detail the use of deflate() and inflate()
zpipe.c
reads and writes zlib streams from stdin to stdout
- illustrates the proper use of deflate() and inflate()
- deeply commented in zlib_how.html (see above)
zran.c
index a zlib or gzip stream and randomly access it
- illustrates the use of Z_BLOCK, inflatePrime(), and
inflateSetDictionary() to provide random access
zlib/examples/fitblk.c 0 → 100644
/* fitblk.c: example of fitting compressed output to a specified size
Not copyrighted -- provided to the public domain
Version 1.1 25 November 2004 Mark Adler */
/* Version history:
1.0 24 Nov 2004 First version
1.1 25 Nov 2004 Change deflateInit2() to deflateInit()
Use fixed-size, stack-allocated raw buffers
Simplify code moving compression to subroutines
Use assert() for internal errors
Add detailed description of approach
*/
/* Approach to just fitting a requested compressed size:
fitblk performs three compression passes on a portion of the input
data in order to determine how much of that input will compress to
nearly the requested output block size. The first pass generates
enough deflate blocks to produce output to fill the requested
output size plus a specfied excess amount (see the EXCESS define
below). The last deflate block may go quite a bit past that, but
is discarded. The second pass decompresses and recompresses just
the compressed data that fit in the requested plus excess sized
buffer. The deflate process is terminated after that amount of
input, which is less than the amount consumed on the first pass.
The last deflate block of the result will be of a comparable size
to the final product, so that the header for that deflate block and
the compression ratio for that block will be about the same as in
the final product. The third compression pass decompresses the
result of the second step, but only the compressed data up to the
requested size minus an amount to allow the compressed stream to
complete (see the MARGIN define below). That will result in a
final compressed stream whose length is less than or equal to the
requested size. Assuming sufficient input and a requested size
greater than a few hundred bytes, the shortfall will typically be
less than ten bytes.
If the input is short enough that the first compression completes
before filling the requested output size, then that compressed
stream is return with no recompression.
EXCESS is chosen to be just greater than the shortfall seen in a
two pass approach similar to the above. That shortfall is due to
the last deflate block compressing more efficiently with a smaller
header on the second pass. EXCESS is set to be large enough so
that there is enough uncompressed data for the second pass to fill
out the requested size, and small enough so that the final deflate
block of the second pass will be close in size to the final deflate
block of the third and final pass. MARGIN is chosen to be just
large enough to assure that the final compression has enough room
to complete in all cases.
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "zlib.h"
#define local static
/* print nastygram and leave */
local void quit(char *why)
{
fprintf(stderr, "fitblk abort: %s\n", why);
exit(1);
}
#define RAWLEN 4096 /* intermediate uncompressed buffer size */
/* compress from file to def until provided buffer is full or end of
input reached; return last deflate() return value, or Z_ERRNO if
there was read error on the file */
local int partcompress(FILE *in, z_streamp def)
{
int ret, flush;
unsigned char raw[RAWLEN];
flush = Z_NO_FLUSH;
do {
def->avail_in = fread(raw, 1, RAWLEN, in);
if (ferror(in))
return Z_ERRNO;
def->next_in = raw;
if (feof(in))
flush = Z_FINISH;
ret = deflate(def, flush);
assert(ret != Z_STREAM_ERROR);
} while (def->avail_out != 0 && flush == Z_NO_FLUSH);
return ret;
}
/* recompress from inf's input to def's output; the input for inf and
the output for def are set in those structures before calling;
return last deflate() return value, or Z_MEM_ERROR if inflate()
was not able to allocate enough memory when it needed to */
local int recompress(z_streamp inf, z_streamp def)
{
int ret, flush;
unsigned char raw[RAWLEN];
flush = Z_NO_FLUSH;
do {
/* decompress */
inf->avail_out = RAWLEN;
inf->next_out = raw;
ret = inflate(inf, Z_NO_FLUSH);
assert(ret != Z_STREAM_ERROR && ret != Z_DATA_ERROR &&
ret != Z_NEED_DICT);
if (ret == Z_MEM_ERROR)
return ret;
/* compress what was decompresed until done or no room */
def->avail_in = RAWLEN - inf->avail_out;
def->next_in = raw;
if (inf->avail_out != 0)
flush = Z_FINISH;
ret = deflate(def, flush);
assert(ret != Z_STREAM_ERROR);
} while (ret != Z_STREAM_END && def->avail_out != 0);
return ret;
}
#define EXCESS 256 /* empirically determined stream overage */
#define MARGIN 8 /* amount to back off for completion */
/* compress from stdin to fixed-size block on stdout */
int main(int argc, char **argv)
{
int ret; /* return code */
unsigned size; /* requested fixed output block size */
unsigned have; /* bytes written by deflate() call */
unsigned char *blk; /* intermediate and final stream */
unsigned char *tmp; /* close to desired size stream */
z_stream def, inf; /* zlib deflate and inflate states */
/* get requested output size */
if (argc != 2)
quit("need one argument: size of output block");
ret = strtol(argv[1], argv + 1, 10);
if (argv[1][0] != 0)
quit("argument must be a number");
if (ret < 8) /* 8 is minimum zlib stream size */
quit("need positive size of 8 or greater");
size = (unsigned)ret;
/* allocate memory for buffers and compression engine */
blk = malloc(size + EXCESS);
def.zalloc = Z_NULL;
def.zfree = Z_NULL;
def.opaque = Z_NULL;
ret = deflateInit(&def, Z_DEFAULT_COMPRESSION);
if (ret != Z_OK || blk == NULL)
quit("out of memory");
/* compress from stdin until output full, or no more input */
def.avail_out = size + EXCESS;
def.next_out = blk;
ret = partcompress(stdin, &def);
if (ret == Z_ERRNO)
quit("error reading input");
/* if it all fit, then size was undersubscribed -- done! */
if (ret == Z_STREAM_END && def.avail_out >= EXCESS) {
/* write block to stdout */
have = size + EXCESS - def.avail_out;
if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
quit("error writing output");
/* clean up and print results to stderr */
ret = deflateEnd(&def);
assert(ret != Z_STREAM_ERROR);
free(blk);
fprintf(stderr,
"%u bytes unused out of %u requested (all input)\n",
size - have, size);
return 0;
}
/* it didn't all fit -- set up for recompression */
inf.zalloc = Z_NULL;
inf.zfree = Z_NULL;
inf.opaque = Z_NULL;
inf.avail_in = 0;
inf.next_in = Z_NULL;
ret = inflateInit(&inf);
tmp = malloc(size + EXCESS);
if (ret != Z_OK || tmp == NULL)
quit("out of memory");
ret = deflateReset(&def);
assert(ret != Z_STREAM_ERROR);
/* do first recompression close to the right amount */
inf.avail_in = size + EXCESS;
inf.next_in = blk;
def.avail_out = size + EXCESS;
def.next_out = tmp;
ret = recompress(&inf, &def);
if (ret == Z_MEM_ERROR)
quit("out of memory");
/* set up for next reocmpression */
ret = inflateReset(&inf);
assert(ret != Z_STREAM_ERROR);
ret = deflateReset(&def);
assert(ret != Z_STREAM_ERROR);
/* do second and final recompression (third compression) */
inf.avail_in = size - MARGIN; /* assure stream will complete */
inf.next_in = tmp;
def.avail_out = size;
def.next_out = blk;
ret = recompress(&inf, &def);
if (ret == Z_MEM_ERROR)
quit("out of memory");
assert(ret == Z_STREAM_END); /* otherwise MARGIN too small */
/* done -- write block to stdout */
have = size - def.avail_out;
if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
quit("error writing output");
/* clean up and print results to stderr */
free(tmp);
ret = inflateEnd(&inf);
assert(ret != Z_STREAM_ERROR);
ret = deflateEnd(&def);
assert(ret != Z_STREAM_ERROR);
free(blk);
fprintf(stderr,
"%u bytes unused out of %u requested (%lu input)\n",
size - have, size, def.total_in);
return 0;
}
zlib/examples/gzlog.h 0 → 100644
/* gzlog.h
Copyright (C) 2004 Mark Adler, all rights reserved
version 1.0, 26 Nov 2004
This software is provided 'as-is', without any express or implied
warranty. In no event will the author be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Mark Adler madler@alumni.caltech.edu
*/
/*
The gzlog object allows writing short messages to a gzipped log file,
opening the log file locked for small bursts, and then closing it. The log
object works by appending stored data to the gzip file until 1 MB has been
accumulated. At that time, the stored data is compressed, and replaces the
uncompressed data in the file. The log file is truncated to its new size at
that time. After closing, the log file is always valid gzip file that can
decompressed to recover what was written.
A gzip header "extra" field contains two file offsets for appending. The
first points to just after the last compressed data. The second points to
the last stored block in the deflate stream, which is empty. All of the
data between those pointers is uncompressed.
*/
/* Open a gzlog object, creating the log file if it does not exist. Return
NULL on error. Note that gzlog_open() could take a long time to return if
there is difficulty in locking the file. */
void *gzlog_open(char *path);
/* Write to a gzlog object. Return non-zero on error. This function will
simply write data to the file uncompressed. Compression of the data
will not occur until gzlog_close() is called. It is expected that
gzlog_write() is used for a short message, and then gzlog_close() is
called. If a large amount of data is to be written, then the application
should write no more than 1 MB at a time with gzlog_write() before
calling gzlog_close() and then gzlog_open() again. */
int gzlog_write(void *log, char *data, size_t len);
/* Close a gzlog object. Return non-zero on error. The log file is locked
until this function is called. This function will compress stored data
at the end of the gzip file if at least 1 MB has been accumulated. Note
that the file will not be a valid gzip file until this function completes.
*/
int gzlog_close(void *log);
zlib/examples/zpipe.c 0 → 100644
/* zpipe.c: example of proper use of zlib's inflate() and deflate()
Not copyrighted -- provided to the public domain
Version 1.2 9 November 2004 Mark Adler */
/* Version history:
1.0 30 Oct 2004 First version
1.1 8 Nov 2004 Add void casting for unused return values
Use switch statement for inflate() return values
1.2 9 Nov 2004 Add assertions to document zlib guarantees
1.3 6 Apr 2005 Remove incorrect assertion in inf()
*/
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "zlib.h"
#define CHUNK 16384
/* Compress from file source to file dest until EOF on source.
def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
allocated for processing, Z_STREAM_ERROR if an invalid compression
level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
version of the library linked do not match, or Z_ERRNO if there is
an error reading or writing the files. */
int def(FILE *source, FILE *dest, int level)
{
int ret, flush;
unsigned have;
z_stream strm;
char in[CHUNK];
char out[CHUNK];
/* allocate deflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
ret = deflateInit(&strm, level);
if (ret != Z_OK)
return ret;
/* compress until end of file */
do {
strm.avail_in = fread(in, 1, CHUNK, source);
if (ferror(source)) {
(void)deflateEnd(&strm);
return Z_ERRNO;
}
flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
strm.next_in = in;
/* run deflate() on input until output buffer not full, finish
compression if all of source has been read in */
do {
strm.avail_out = CHUNK;
strm.next_out = out;
ret = deflate(&strm, flush); /* no bad return value */
assert(ret != Z_STREAM_ERROR); /* state not clobbered */
have = CHUNK - strm.avail_out;
if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
(void)deflateEnd(&strm);
return Z_ERRNO;
}
} while (strm.avail_out == 0);
assert(strm.avail_in == 0); /* all input will be used */
/* done when last data in file processed */
} while (flush != Z_FINISH);
assert(ret == Z_STREAM_END); /* stream will be complete */
/* clean up and return */
(void)deflateEnd(&strm);
return Z_OK;
}
/* Decompress from file source to file dest until stream ends or EOF.
inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
allocated for processing, Z_DATA_ERROR if the deflate data is
invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
the version of the library linked do not match, or Z_ERRNO if there
is an error reading or writing the files. */
int inf(FILE *source, FILE *dest)
{
int ret;
unsigned have;
z_stream strm;
char in[CHUNK];
char out[CHUNK];
/* allocate inflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
strm.avail_in = 0;
strm.next_in = Z_NULL;
ret = inflateInit(&strm);
if (ret != Z_OK)
return ret;
/* decompress until deflate stream ends or end of file */
do {
strm.avail_in = fread(in, 1, CHUNK, source);
if (ferror(source)) {
(void)inflateEnd(&strm);
return Z_ERRNO;
}
if (strm.avail_in == 0)
break;
strm.next_in = in;
/* run inflate() on input until output buffer not full */
do {
strm.avail_out = CHUNK;
strm.next_out = out;
ret = inflate(&strm, Z_NO_FLUSH);
assert(ret != Z_STREAM_ERROR); /* state not clobbered */
switch (ret) {
case Z_NEED_DICT:
ret = Z_DATA_ERROR; /* and fall through */
case Z_DATA_ERROR:
case Z_MEM_ERROR:
(void)inflateEnd(&strm);
return ret;
}
have = CHUNK - strm.avail_out;
if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
(void)inflateEnd(&strm);
return Z_ERRNO;
}
} while (strm.avail_out == 0);
/* done when inflate() says it's done */
} while (ret != Z_STREAM_END);
/* clean up and return */
(void)inflateEnd(&strm);
return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
}
/* report a zlib or i/o error */
void zerr(int ret)
{
fputs("zpipe: ", stderr);
switch (ret) {
case Z_ERRNO:
if (ferror(stdin))
fputs("error reading stdin\n", stderr);
if (ferror(stdout))
fputs("error writing stdout\n", stderr);
break;
case Z_STREAM_ERROR:
fputs("invalid compression level\n", stderr);
break;
case Z_DATA_ERROR:
fputs("invalid or incomplete deflate data\n", stderr);
break;
case Z_MEM_ERROR:
fputs("out of memory\n", stderr);
break;
case Z_VERSION_ERROR:
fputs("zlib version mismatch!\n", stderr);
}
}
/* compress or decompress from stdin to stdout */
int main(int argc, char **argv)
{
int ret;
/* do compression if no arguments */
if (argc == 1) {
ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
if (ret != Z_OK)
zerr(ret);
return ret;
}
/* do decompression if -d specified */
else if (argc == 2 && strcmp(argv[1], "-d") == 0) {
ret = inf(stdin, stdout);
if (ret != Z_OK)
zerr(ret);
return ret;
}
/* otherwise, report usage */
else {
fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr);
return 1;
}
}
zlib/old/visual-basic.txt 0 → 100644
See below some functions declarations for Visual Basic.
Frequently Asked Question:
Q: Each time I use the compress function I get the -5 error (not enough
room in the output buffer).
A: Make sure that the length of the compressed buffer is passed by
reference ("as any"), not by value ("as long"). Also check that
before the call of compress this length is equal to the total size of
the compressed buffer and not zero.
From: "Jon Caruana" <jon-net@usa.net>
Subject: Re: How to port zlib declares to vb?
Date: Mon, 28 Oct 1996 18:33:03 -0600
Got the answer! (I haven't had time to check this but it's what I got, and
looks correct):
He has the following routines working:
compress
uncompress
gzopen
gzwrite
gzread
gzclose
Declares follow: (Quoted from Carlos Rios <c_rios@sonda.cl>, in Vb4 form)
#If Win16 Then 'Use Win16 calls.
Declare Function compress Lib "ZLIB.DLL" (ByVal compr As
String, comprLen As Any, ByVal buf As String, ByVal buflen
As Long) As Integer
Declare Function uncompress Lib "ZLIB.DLL" (ByVal uncompr
As String, uncomprLen As Any, ByVal compr As String, ByVal
lcompr As Long) As Integer
Declare Function gzopen Lib "ZLIB.DLL" (ByVal filePath As
String, ByVal mode As String) As Long
Declare Function gzread Lib "ZLIB.DLL" (ByVal file As
Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
As Integer
Declare Function gzwrite Lib "ZLIB.DLL" (ByVal file As
Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
As Integer
Declare Function gzclose Lib "ZLIB.DLL" (ByVal file As
Long) As Integer
#Else
Declare Function compress Lib "ZLIB32.DLL"
(ByVal compr As String, comprLen As Any, ByVal buf As
String, ByVal buflen As Long) As Integer
Declare Function uncompress Lib "ZLIB32.DLL"
(ByVal uncompr As String, uncomprLen As Any, ByVal compr As
String, ByVal lcompr As Long) As Long
Declare Function gzopen Lib "ZLIB32.DLL"
(ByVal file As String, ByVal mode As String) As Long
Declare Function gzread Lib "ZLIB32.DLL"
(ByVal file As Long, ByVal uncompr As String, ByVal
uncomprLen As Long) As Long
Declare Function gzwrite Lib "ZLIB32.DLL"
(ByVal file As Long, ByVal uncompr As String, ByVal
uncomprLen As Long) As Long
Declare Function gzclose Lib "ZLIB32.DLL"
(ByVal file As Long) As Long
#End If
-Jon Caruana
jon-net@usa.net
Microsoft Sitebuilder Network Level 1 Member - HTML Writer's Guild Member
Here is another example from Michael <michael_borgsys@hotmail.com> that he
says conforms to the VB guidelines, and that solves the problem of not
knowing the uncompressed size by storing it at the end of the file:
'Calling the functions:
'bracket meaning: <parameter> [optional] {Range of possible values}
'Call subCompressFile(<path with filename to compress> [, <path with
filename to write to>, [level of compression {1..9}]])
'Call subUncompressFile(<path with filename to compress>)
Option Explicit
Private lngpvtPcnSml As Long 'Stores value for 'lngPercentSmaller'
Private Const SUCCESS As Long = 0
Private Const strFilExt As String = ".cpr"
Private Declare Function lngfncCpr Lib "zlib.dll" Alias "compress2" (ByRef
dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long,
ByVal level As Integer) As Long
Private Declare Function lngfncUcp Lib "zlib.dll" Alias "uncompress" (ByRef
dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long)
As Long
Public Sub subCompressFile(ByVal strargOriFilPth As String, Optional ByVal
strargCprFilPth As String, Optional ByVal intLvl As Integer = 9)
Dim strCprPth As String
Dim lngOriSiz As Long
Dim lngCprSiz As Long
Dim bytaryOri() As Byte
Dim bytaryCpr() As Byte
lngOriSiz = FileLen(strargOriFilPth)
ReDim bytaryOri(lngOriSiz - 1)
Open strargOriFilPth For Binary Access Read As #1
Get #1, , bytaryOri()
Close #1
strCprPth = IIf(strargCprFilPth = "", strargOriFilPth, strargCprFilPth)
'Select file path and name
strCprPth = strCprPth & IIf(Right(strCprPth, Len(strFilExt)) =
strFilExt, "", strFilExt) 'Add file extension if not exists
lngCprSiz = (lngOriSiz * 1.01) + 12 'Compression needs temporary a bit
more space then original file size
ReDim bytaryCpr(lngCprSiz - 1)
If lngfncCpr(bytaryCpr(0), lngCprSiz, bytaryOri(0), lngOriSiz, intLvl) =
SUCCESS Then
lngpvtPcnSml = (1# - (lngCprSiz / lngOriSiz)) * 100
ReDim Preserve bytaryCpr(lngCprSiz - 1)
Open strCprPth For Binary Access Write As #1
Put #1, , bytaryCpr()
Put #1, , lngOriSiz 'Add the the original size value to the end
(last 4 bytes)
Close #1
Else
MsgBox "Compression error"
End If
Erase bytaryCpr
Erase bytaryOri
End Sub
Public Sub subUncompressFile(ByVal strargFilPth As String)
Dim bytaryCpr() As Byte
Dim bytaryOri() As Byte
Dim lngOriSiz As Long
Dim lngCprSiz As Long
Dim strOriPth As String
lngCprSiz = FileLen(strargFilPth)
ReDim bytaryCpr(lngCprSiz - 1)
Open strargFilPth For Binary Access Read As #1
Get #1, , bytaryCpr()
Close #1
'Read the original file size value:
lngOriSiz = bytaryCpr(lngCprSiz - 1) * (2 ^ 24) _
+ bytaryCpr(lngCprSiz - 2) * (2 ^ 16) _
+ bytaryCpr(lngCprSiz - 3) * (2 ^ 8) _
+ bytaryCpr(lngCprSiz - 4)
ReDim Preserve bytaryCpr(lngCprSiz - 5) 'Cut of the original size value
ReDim bytaryOri(lngOriSiz - 1)
If lngfncUcp(bytaryOri(0), lngOriSiz, bytaryCpr(0), lngCprSiz) = SUCCESS
Then
strOriPth = Left(strargFilPth, Len(strargFilPth) - Len(strFilExt))
Open strOriPth For Binary Access Write As #1
Put #1, , bytaryOri()
Close #1
Else
MsgBox "Uncompression error"
End If
Erase bytaryCpr
Erase bytaryOri
End Sub
Public Property Get lngPercentSmaller() As Long
lngPercentSmaller = lngpvtPcnSml
End Property
zlib/projects/README.projects 0 → 100644
This directory contains project files for building zlib under various
Integrated Development Environments (IDE).
If you wish to submit a new project to this directory, you should comply
to the following requirements. Otherwise (e.g. if you wish to integrate
a custom piece of code that changes the zlib interface or its behavior),
please consider submitting the project to the contrib directory.
Requirements
============
- The project must build zlib using the source files from the official
zlib source distribution, exclusively.
- If the project produces redistributable builds (e.g. shared objects
or DLL files), these builds must be compatible to those produced by
makefiles, if such makefiles exist in the zlib distribution.
In particular, if the project produces a DLL build for the Win32
platform, this build must comply to the officially-ammended Win32 DLL
Application Binary Interface (ABI), described in win32/DLL_FAQ.txt.
- The project may provide additional build targets, which depend on
3rd-party (unofficially-supported) software, present in the contrib
directory. For example, it is possible to provide an "ASM build",
besides the officially-supported build, and have ASM source files
among its dependencies.
- If there are significant differences between the project files created
by different versions of an IDE (e.g. Visual C++ 6.0 vs. 7.0), the name
of the project directory should contain the version number of the IDE
for which the project is intended (e.g. "visualc6" for Visual C++ 6.0,
or "visualc7" for Visual C++ 7.0 and 7.1).
Current projects
================
visualc6/ by Simon-Pierre Cadieux <methodex@methodex.ca>
and Cosmin Truta <cosmint@cs.ubbcluj.ro>
Project for Microsoft Visual C++ 6.0
zlib/projects/visualc6/README.txt 0 → 100644
Microsoft Developer Studio Project Files, Format Version 6.00 for zlib.
Copyright (C) 2000-2004 Simon-Pierre Cadieux.
Copyright (C) 2004 Cosmin Truta.
For conditions of distribution and use, see copyright notice in zlib.h.
This project builds the zlib binaries as follows:
* Win32_DLL_Release\zlib1.dll DLL build
* Win32_DLL_Debug\zlib1d.dll DLL build (debug version)
* Win32_DLL_ASM_Release\zlib1.dll DLL build using ASM code
* Win32_DLL_ASM_Debug\zlib1d.dll DLL build using ASM code (debug version)
* Win32_LIB_Release\zlib.lib static build
* Win32_LIB_Debug\zlibd.lib static build (debug version)
* Win32_LIB_ASM_Release\zlib.lib static build using ASM code
* Win32_LIB_ASM_Debug\zlibd.lib static build using ASM code (debug version)
For more information regarding the DLL builds, please see the DLL FAQ
in ..\..\win32\DLL_FAQ.txt.
To build and test:
1) On the main menu, select "File | Open Workspace".
Open "zlib.dsw".
2) Select "Build | Set Active Configuration".
Choose the configuration you wish to build.
3) Select "Build | Clean".
4) Select "Build | Build ... (F7)". Ignore warning messages about
not being able to find certain include files (e.g. alloc.h).
5) If you built one of the sample programs (example or minigzip),
select "Build | Execute ... (Ctrl+F5)".
To use:
1) Select "Project | Settings (Alt+F7)".
Make note of the configuration names used in your project.
Usually, these names are "Win32 Release" and "Win32 Debug".
2) In the Workspace window, select the "FileView" tab.
Right-click on the root item "Workspace '...'".
Select "Insert Project into Workspace".
Switch on the checkbox "Dependency of:", and select the name
of your project. Open "zlib.dsp".
3) Select "Build | Configurations".
For each configuration of your project:
3.1) Choose the zlib configuration you wish to use.
3.2) Click on "Add".
3.3) Set the new zlib configuration name to the name used by
the configuration from the current iteration.
4) Select "Build | Set Active Configuration".
Choose the configuration you wish to build.
5) Select "Build | Build ... (F7)".
6) If you built an executable program, select
"Build | Execute ... (Ctrl+F5)".
Note:
To build the ASM-enabled code, you need Microsoft Assembler
(ML.EXE). You can get it by downloading and installing the
latest Processor Pack for Visual C++ 6.0.
zlib/projects/visualc6/zlib.dsw 0 → 100644
Microsoft Developer Studio Workspace File, Format Version 6.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
Project: "example"=.\example.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
Begin Project Dependency
Project_Dep_Name zlib
End Project Dependency
}}}
###############################################################################
Project: "minigzip"=.\minigzip.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
Begin Project Dependency
Project_Dep_Name zlib
End Project Dependency
}}}
###############################################################################
Project: "zlib"=.\zlib.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Global:
Package=<5>
{{{
}}}
Package=<3>
{{{
}}}
###############################################################################
zlib/win32/VisualC.txt 0 → 100644
To build zlib using the Microsoft Visual C++ environment,
use the appropriate project from the projects/ directory.
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