mirror of
https://github.com/ZDoom/gzdoom.git
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cef12aac6d
files that use a literal table and 8k dictionary, and that the just-added Shrink support works at all. - Replaced the bit-at-a-time Shannon-Fano decoder from GunZip.c64 with the word-at-a-time one from 7-Zip for a slight speedup when working with Imploded files. SVN r1588 (trunk)
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
#ifndef __W_ZIP
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#define __W_ZIP
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#pragma pack(push, 1)
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// FZipCentralInfo
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struct FZipEndOfCentralDirectory
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{
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DWORD Magic;
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WORD DiskNumber;
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WORD FirstDisk;
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WORD NumEntries;
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WORD NumEntriesOnAllDisks;
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DWORD DirectorySize;
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DWORD DirectoryOffset;
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WORD ZipCommentLength;
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};
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// FZipFileInfo
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struct FZipCentralDirectoryInfo
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{
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DWORD Magic;
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BYTE VersionMadeBy[2];
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BYTE VersionToExtract[2];
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WORD Flags;
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WORD Method;
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WORD ModTime;
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WORD ModDate;
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DWORD CRC32;
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DWORD CompressedSize;
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DWORD UncompressedSize;
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WORD NameLength;
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WORD ExtraLength;
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WORD CommentLength;
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WORD StartingDiskNumber;
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WORD InternalAttributes;
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DWORD ExternalAttributes;
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DWORD LocalHeaderOffset;
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// file name and other variable length info follows
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};
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// FZipLocalHeader
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struct FZipLocalFileHeader
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{
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DWORD Magic;
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BYTE VersionToExtract[2];
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WORD Flags;
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WORD Method;
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WORD ModTime;
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WORD ModDate;
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DWORD CRC32;
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DWORD CompressedSize;
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DWORD UncompressedSize;
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WORD NameLength;
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WORD ExtraLength;
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// file name and other variable length info follows
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};
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#pragma pack(pop)
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#define ZIP_LOCALFILE MAKE_ID('P','K',3,4)
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#define ZIP_CENTRALFILE MAKE_ID('P','K',1,2)
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#define ZIP_ENDOFDIR MAKE_ID('P','K',5,6)
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#define METHOD_STORED 0
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#define METHOD_SHRINK 1
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#define METHOD_IMPLODE 6
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#define METHOD_DEFLATE 8
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#define METHOD_BZIP2 12
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#define METHOD_LZMA 14
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#define METHOD_PPMD 98
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// File header flags.
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#define ZF_ENCRYPTED 0x1
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#endif
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