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Update ArcDX8.cs

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Start work on huffman compression.
This commit is contained in:
Sławomir Śpiewak
2024-08-01 14:42:40 +02:00
parent beaab0ecee
commit 881e5f1e3f
1 changed files with 12 additions and 2 deletions
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14
ArcFormats/DxLib/ArcDX8.cs
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@@ -24,7 +24,6 @@
// //
using GameRes.Formats.Strings; using GameRes.Formats.Strings;
using NAudio.SoundFont;
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.ComponentModel.Composition; using System.ComponentModel.Composition;
@@ -42,6 +41,17 @@ namespace GameRes.Formats.DxLib
public bool HuffmanCompressed { get; set; } public bool HuffmanCompressed { get; set; }
} }
internal struct DXA8HuffmanNode
{
UInt64 Weight;
int bitNumber;
byte[] bitArray; //32 bytes here
int Index;
int ParentNode; // index of parent node.
int[] ChildNode; //two children nodes, -1 if not existent.
}
[Export(typeof(ArchiveFormat))] [Export(typeof(ArchiveFormat))]
public class Dx8Opener : DxOpener public class Dx8Opener : DxOpener
{ {
@@ -153,7 +163,7 @@ namespace GameRes.Formats.DxLib
var readyStr = new MemoryStream(headerBuffer); var readyStr = new MemoryStream(headerBuffer);
ArcView arcView = new ArcView(readyStr, "hdr",(uint)headerBuffer.LongLength); ArcView arcView = new ArcView(readyStr, "hdr",(uint)headerBuffer.LongLength);
List<Entry> entries; List<Entry> entries;
//TODO: Try to memmap files with over 4GB. //There MAY be the case where the singular file is over 4GB, but it's very rare.
using (var indexStr = arcView.CreateStream(0, (uint)dx.IndexSize)) using (var indexStr = arcView.CreateStream(0, (uint)dx.IndexSize))
using (var reader = IndexReader.Create(dx, 8, indexStr)) using (var reader = IndexReader.Create(dx, 8, indexStr))
{ {