diff options
Diffstat (limited to 'src/libs/7zip/unix/CPP/7zip/Archive/Chm/ChmIn.h')
| -rw-r--r-- | src/libs/7zip/unix/CPP/7zip/Archive/Chm/ChmIn.h | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Archive/Chm/ChmIn.h b/src/libs/7zip/unix/CPP/7zip/Archive/Chm/ChmIn.h deleted file mode 100644 index 4719a484d..000000000 --- a/src/libs/7zip/unix/CPP/7zip/Archive/Chm/ChmIn.h +++ /dev/null @@ -1,244 +0,0 @@ -// Archive/ChmIn.h - -#ifndef __ARCHIVE_CHM_IN_H -#define __ARCHIVE_CHM_IN_H - -#include "Common/Buffer.h" -#include "Common/MyString.h" - -#include "../../IStream.h" -#include "../../Common/InBuffer.h" - -#include "ChmHeader.h" - -namespace NArchive { -namespace NChm { - -struct CItem -{ - UInt64 Section; - UInt64 Offset; - UInt64 Size; - AString Name; - - bool IsFormatRelatedItem() const - { - if (Name.Length() < 2) - return false; - return Name[0] == ':' && Name[1] == ':'; - } - - bool IsUserItem() const - { - if (Name.Length() < 2) - return false; - return Name[0] == '/'; - } - - bool IsDir() const - { - if (Name.Length() == 0) - return false; - return (Name[Name.Length() - 1] == '/'); - } -}; - -struct CDatabase -{ - UInt64 ContentOffset; - CObjectVector<CItem> Items; - AString NewFormatString; - bool Help2Format; - bool NewFormat; - - int FindItem(const AString &name) const - { - for (int i = 0; i < Items.Size(); i++) - if (Items[i].Name == name) - return i; - return -1; - } - - void Clear() - { - NewFormat = false; - NewFormatString.Empty(); - Help2Format = false; - Items.Clear(); - } -}; - -struct CResetTable -{ - UInt64 UncompressedSize; - UInt64 CompressedSize; - UInt64 BlockSize; - CRecordVector<UInt64> ResetOffsets; - bool GetCompressedSizeOfBlocks(UInt64 blockIndex, UInt32 numBlocks, UInt64 &size) const - { - if (blockIndex >= ResetOffsets.Size()) - return false; - UInt64 startPos = ResetOffsets[(int)blockIndex]; - if (blockIndex + numBlocks >= ResetOffsets.Size()) - size = CompressedSize - startPos; - else - size = ResetOffsets[(int)(blockIndex + numBlocks)] - startPos; - return true; - } - bool GetCompressedSizeOfBlock(UInt64 blockIndex, UInt64 &size) const - { - return GetCompressedSizeOfBlocks(blockIndex, 1, size); - } - UInt64 GetNumBlocks(UInt64 size) const - { - return (size + BlockSize - 1) / BlockSize; - } -}; - -struct CLzxInfo -{ - UInt32 Version; - UInt32 ResetInterval; - UInt32 WindowSize; - UInt32 CacheSize; - CResetTable ResetTable; - - UInt32 GetNumDictBits() const - { - if (Version == 2 || Version == 3) - { - for (int i = 0; i <= 31; i++) - if (((UInt32)1 << i) >= WindowSize) - return 15 + i; - } - return 0; - } - - UInt64 GetFolderSize() const { return ResetTable.BlockSize * ResetInterval; }; - UInt64 GetFolder(UInt64 offset) const { return offset / GetFolderSize(); }; - UInt64 GetFolderPos(UInt64 folderIndex) const { return folderIndex * GetFolderSize(); }; - UInt64 GetBlockIndexFromFolderIndex(UInt64 folderIndex) const { return folderIndex * ResetInterval; }; - bool GetOffsetOfFolder(UInt64 folderIndex, UInt64 &offset) const - { - UInt64 blockIndex = GetBlockIndexFromFolderIndex(folderIndex); - if (blockIndex >= ResetTable.ResetOffsets.Size()) - return false; - offset = ResetTable.ResetOffsets[(int)blockIndex]; - return true; - } - bool GetCompressedSizeOfFolder(UInt64 folderIndex, UInt64 &size) const - { - UInt64 blockIndex = GetBlockIndexFromFolderIndex(folderIndex); - return ResetTable.GetCompressedSizeOfBlocks(blockIndex, ResetInterval, size); - } -}; - -struct CMethodInfo -{ - GUID Guid; - CByteBuffer ControlData; - CLzxInfo LzxInfo; - bool IsLzx() const; - bool IsDes() const; - AString GetGuidString() const; - UString GetName() const; -}; - -struct CSectionInfo -{ - UInt64 Offset; - UInt64 CompressedSize; - UInt64 UncompressedSize; - - AString Name; - CObjectVector<CMethodInfo> Methods; - - bool IsLzx() const; - UString GetMethodName() const; -}; - -class CFilesDatabase: public CDatabase -{ -public: - bool LowLevel; - CRecordVector<int> Indices; - CObjectVector<CSectionInfo> Sections; - - UInt64 GetFileSize(int fileIndex) const { return Items[Indices[fileIndex]].Size; } - UInt64 GetFileOffset(int fileIndex) const { return Items[Indices[fileIndex]].Offset; } - - UInt64 GetFolder(int fileIndex) const - { - const CItem &item = Items[Indices[fileIndex]]; - const CSectionInfo §ion = Sections[(int)item.Section]; - if (section.IsLzx()) - return section.Methods[0].LzxInfo.GetFolder(item.Offset); - return 0; - } - - UInt64 GetLastFolder(int fileIndex) const - { - const CItem &item = Items[Indices[fileIndex]]; - const CSectionInfo §ion = Sections[(int)item.Section]; - if (section.IsLzx()) - return section.Methods[0].LzxInfo.GetFolder(item.Offset + item.Size - 1); - return 0; - } - - void HighLevelClear() - { - LowLevel = true; - Indices.Clear(); - Sections.Clear(); - } - - void Clear() - { - CDatabase::Clear(); - HighLevelClear(); - } - void SetIndices(); - void Sort(); - bool Check(); -}; - -class CProgressVirt -{ -public: - STDMETHOD(SetTotal)(const UInt64 *numFiles) PURE; - STDMETHOD(SetCompleted)(const UInt64 *numFiles) PURE; -}; - -class CInArchive -{ - UInt64 _startPosition; - ::CInBuffer _inBuffer; - UInt64 _chunkSize; - - Byte ReadByte(); - void ReadBytes(Byte *data, UInt32 size); - void Skip(size_t size); - UInt16 ReadUInt16(); - UInt32 ReadUInt32(); - UInt64 ReadUInt64(); - UInt64 ReadEncInt(); - void ReadString(int size, AString &s); - void ReadUString(int size, UString &s); - void ReadGUID(GUID &g); - - HRESULT ReadChunk(IInStream *inStream, UInt64 pos, UInt64 size); - - HRESULT ReadDirEntry(CDatabase &database); - HRESULT DecompressStream(IInStream *inStream, const CDatabase &database, const AString &name); - -public: - HRESULT OpenChm(IInStream *inStream, CDatabase &database); - HRESULT OpenHelp2(IInStream *inStream, CDatabase &database); - HRESULT OpenHighLevel(IInStream *inStream, CFilesDatabase &database); - HRESULT Open2(IInStream *inStream, const UInt64 *searchHeaderSizeLimit, CFilesDatabase &database); - HRESULT Open(IInStream *inStream, const UInt64 *searchHeaderSizeLimit, CFilesDatabase &database); -}; - -}} - -#endif |