3.13

2025-12-17 16:11:52 -06:00 · 2003-12-11 00:00:00 +00:00
commit 8c1b5c7b7e
982 changed files with 118799 additions and 0 deletions
--- a/7zip/Compress/Arj/Decoder1.h
+++ b/7zip/Compress/Arj/Decoder1.h
@@ -0,0 +1,110 @@
+// Arj/Decoder1.h
+
+#pragma once
+
+#ifndef __COMPRESS_ARJ_DECODER1_H
+#define __COMPRESS_ARJ_DECODER1_H
+
+#include "Common/MyCom.h"
+#include "../../ICoder.h"
+#include "../../Common/MSBFDecoder.h"
+#include "../../Common/InBuffer.h"
+#include "../LZ/LZOutWindow.h"
+
+/*
+// {23170F69-40C1-278B-0404-010000000000}
+DEFINE_GUID(CLSID_CCompressArjDecoder, 
+0x23170F69, 0x40C1, 0x278B, 0x04, 0x04, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00);
+*/
+
+namespace NCompress {
+namespace NArj {
+namespace NDecoder1 {
+
+#define CODE_BIT          16
+
+#define THRESHOLD    3
+#define DDICSIZ      26624
+#define MAXDICBIT   16
+#define MATCHBIT     8
+#define MAXMATCH   256
+#define NC          (UCHAR_MAX + MAXMATCH + 2 - THRESHOLD)
+#define NP          (MAXDICBIT + 1)
+#define CBIT         9
+#define NT          (CODE_BIT + 3)
+#define PBIT         5
+#define TBIT         5
+
+#if NT > NP
+#define NPT NT
+#else
+#define NPT NP
+#endif
+
+#define CTABLESIZE  4096
+#define PTABLESIZE   256
+
+
+class CCoder :
+  public ICompressCoder,
+  public CMyUnknownImp
+{
+  CLZOutWindow m_OutWindowStream;
+  NStream::NMSBF::CDecoder<CInBuffer> m_InBitStream;
+
+  UINT32 left[2 * NC - 1];
+  UINT32 right[2 * NC - 1];
+  BYTE c_len[NC];
+  BYTE pt_len[NPT];
+
+  UINT32 c_table[CTABLESIZE];
+  UINT32 pt_table[PTABLESIZE];
+  
+
+  /*
+  void CCoder::ReleaseStreams()
+  {
+    m_OutWindowStream.ReleaseStream();
+    m_InBitStream.ReleaseStream();
+  }
+  */
+  class CCoderReleaser
+  {
+    CCoder *m_Coder;
+  public:
+    CCoderReleaser(CCoder *aCoder): m_Coder(aCoder) {}
+    ~CCoderReleaser()
+    {
+      m_Coder->m_OutWindowStream.Flush();
+      // m_Coder->ReleaseStreams();
+    }
+  };
+  friend class CCoderReleaser;
+
+  void make_table(int nchar, BYTE *bitlen, int tablebits, 
+      UINT32 *table, int tablesize);
+  
+  void read_c_len();
+  void read_pt_len(int nn, int nbit, int i_special);
+  UINT32 decode_c();
+  UINT32 decode_p();
+
+
+public:
+  CCoder();
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD(CodeReal)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+  STDMETHOD(Code)(ISequentialInStream *inStream,
+      ISequentialOutStream *outStream, const UINT64 *inSize, const UINT64 *outSize,
+      ICompressProgressInfo *progress);
+
+};
+
+}}}
+
+#endif