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JunaMeinholdJunaMeinhold
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Added example and binaries and more overloads.
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‎Example/Example.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net9.0</TargetFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\Hexa.NET.ZLib\Hexa.NET.ZLib.csproj" />
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</ItemGroup>
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</Project>

‎Example/Program.cs‎

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// See https://aka.ms/new-console-template for more information
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using Hexa.NET.ZLib;
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using System.Text;
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unsafe
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{
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string original = "Hello, this is an example of zlib compression with a C wrapper!";
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byte[] inputData = Encoding.UTF8.GetBytes(original);
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uint inputLen = (uint)inputData.Length;
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byte[] compressedData = new byte[1024];
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uint compressedSize;
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{
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ZStream stream;
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int initResult = ZLib.DeflateInit(&stream, ZLib.Z_DEFAULT_COMPRESSION, ZLib.ZLIB_VERSION, sizeof(ZStream));
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if (initResult != 0)
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{
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Console.WriteLine("DeflateInit failed!");
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return;
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}
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// Set up the ZStream for compression
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fixed (byte* inputPtr = inputData)
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fixed (byte* compressedPtr = compressedData)
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{
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stream.NextIn = inputPtr;
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stream.AvailIn = inputLen;
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stream.NextOut = compressedPtr;
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stream.AvailOut = (uint)compressedData.Length;
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// Perform compression
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int deflateResult = ZLib.Deflate(&stream, ZLib.Z_FINISH);
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if (deflateResult != ZLib.Z_STREAM_END)
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{
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Console.WriteLine("Deflate failed!");
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return;
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}
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// Get the compressed length
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uint compressedLength = stream.TotalOut;
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// Output the compressed data
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Console.WriteLine("Compressed data:");
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for (int i = 0; i < compressedLength; i++)
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{
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Console.Write(compressedData[i] + " ");
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}
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Console.WriteLine();
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}
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ZLib.DeflateEnd(&stream);
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compressedSize = stream.TotalOut;
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}
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byte[] buffer = new byte[1024];
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{
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ZStream stream;
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int initResult = ZLib.InflateInit(&stream, ZLib.ZLIB_VERSION, sizeof(ZStream));
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if (initResult != 0)
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{
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Console.WriteLine("InflateInit failed!");
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return;
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}
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// Set up the ZStream for decompression
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fixed (byte* outputPtr = buffer)
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fixed (byte* compressedPtr = compressedData)
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{
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stream.NextIn = compressedPtr;
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stream.AvailIn = compressedSize;
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stream.NextOut = outputPtr;
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stream.AvailOut = (uint)buffer.Length;
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// Perform decompression
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int deflateResult = ZLib.Inflate(&stream, ZLib.Z_FINISH);
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if (deflateResult != ZLib.Z_STREAM_END)
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{
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Console.WriteLine("Inflate failed!");
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return;
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}
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// Get the decompression length
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uint decompressedLength = stream.TotalOut;
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Console.WriteLine("Decompressed data:");
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Console.WriteLine(Encoding.UTF8.GetString(outputPtr, (int)decompressedLength));
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}
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ZLib.InflateEnd(&stream);
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}
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}
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‎Generator/Generator.csproj‎

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<None Update="generator.json">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\crc32.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\deflate.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\gzguts.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\inffast.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\inffixed.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\inflate.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\inftrees.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\trees.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\zconf.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\zlib.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\main.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="include\zutil.h">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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</ItemGroup>
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</Project>

‎Generator/Program.cs‎

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// See https://aka.ms/new-console-template for more information
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using HexaGen;
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using HexaGen.Core.Mapping;
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using HexaGen.Patching;
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List<string> headers = ["include/zconf.h", "include/zlib.h"];
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BatchGenerator batch = new();
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batch
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.Setup<CsCodeGenerator>("generator.json")
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.AlterConfig(c =>
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{
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EnumMapping mapping = new("inflate_mode", null, null);
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mapping.ItemMappings.Add(new("COPY_", "Copy_", null, null));
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mapping.ItemMappings.Add(new("LEN_", "Len_", null, null));
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c.EnumMappings.Add(mapping);
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})
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.AddPrePatch(new NamingPatch(["Gz", "Zlib"], NamingPatchOptions.None))
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.Generate(headers, "../../../../Hexa.NET.ZLib/Generated");
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.Generate("include/main.h", "../../../../Hexa.NET.ZLib/Generated", [.. Directory.GetFiles("include")]);

‎Generator/generator.json‎

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"GenerateDelegates": true,
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"GenerateMetadata": false,
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"GenerateExtensions": true,
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"UseCustomContext": true,
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"DelegatesAsVoidPointer": true,
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"BoolType": 0,
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"IgnoredConstants": [ "PNG_HEADER_VERSION_STRING" ],
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"IgnoredFunctions": [ "gzvprintf" ],
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"IgnoredTypedefs": [
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"gz_headerp",
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"z_size_t": "nint",
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"uLongf": "uint",
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"Bytef": "byte"
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"Bytef": "byte",
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"internal_state": "DeflateState"
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}
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}

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