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wbBSArchive.pas
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wbBSArchive.pas
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{******************************************************************************
This Source Code Form is subject to the terms of the Mozilla Public License,
v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain
one at https://mozilla.org/MPL/2.0/.
*******************************************************************************}
unit wbBSArchive;
interface
uses
SysUtils,
Classes,
Windows,
Threading,
SyncObjs,
wbStreams,
tfTypes,
tfMD5;
const
csBSAVersion = '0.9b';
type
// per file compression options
TPackingCompression = (pcGlobal, pcCompress, pcUncompress);
TMagic4 = array [0..3] of AnsiChar;
PMagic4 = ^TMagic4;
TDXGI = (
DXGI_FORMAT_UNKNOWN,
DXGI_FORMAT_R32G32B32A32_TYPELESS,
DXGI_FORMAT_R32G32B32A32_FLOAT,
DXGI_FORMAT_R32G32B32A32_UINT,
DXGI_FORMAT_R32G32B32A32_SINT,
DXGI_FORMAT_R32G32B32_TYPELESS,
DXGI_FORMAT_R32G32B32_FLOAT,
DXGI_FORMAT_R32G32B32_UINT,
DXGI_FORMAT_R32G32B32_SINT,
DXGI_FORMAT_R16G16B16A16_TYPELESS,
DXGI_FORMAT_R16G16B16A16_FLOAT,
DXGI_FORMAT_R16G16B16A16_UNORM,
DXGI_FORMAT_R16G16B16A16_UINT,
DXGI_FORMAT_R16G16B16A16_SNORM,
DXGI_FORMAT_R16G16B16A16_SINT,
DXGI_FORMAT_R32G32_TYPELESS,
DXGI_FORMAT_R32G32_FLOAT,
DXGI_FORMAT_R32G32_UINT,
DXGI_FORMAT_R32G32_SINT,
DXGI_FORMAT_R32G8X24_TYPELESS,
DXGI_FORMAT_D32_FLOAT_S8X24_UINT,
DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS,
DXGI_FORMAT_X32_TYPELESS_G8X24_UINT,
DXGI_FORMAT_R10G10B10A2_TYPELESS,
DXGI_FORMAT_R10G10B10A2_UNORM,
DXGI_FORMAT_R10G10B10A2_UINT,
DXGI_FORMAT_R11G11B10_FLOAT,
DXGI_FORMAT_R8G8B8A8_TYPELESS,
DXGI_FORMAT_R8G8B8A8_UNORM,
DXGI_FORMAT_R8G8B8A8_UNORM_SRGB,
DXGI_FORMAT_R8G8B8A8_UINT,
DXGI_FORMAT_R8G8B8A8_SNORM,
DXGI_FORMAT_R8G8B8A8_SINT,
DXGI_FORMAT_R16G16_TYPELESS,
DXGI_FORMAT_R16G16_FLOAT,
DXGI_FORMAT_R16G16_UNORM,
DXGI_FORMAT_R16G16_UINT,
DXGI_FORMAT_R16G16_SNORM,
DXGI_FORMAT_R16G16_SINT,
DXGI_FORMAT_R32_TYPELESS,
DXGI_FORMAT_D32_FLOAT,
DXGI_FORMAT_R32_FLOAT,
DXGI_FORMAT_R32_UINT,
DXGI_FORMAT_R32_SINT,
DXGI_FORMAT_R24G8_TYPELESS,
DXGI_FORMAT_D24_UNORM_S8_UINT,
DXGI_FORMAT_R24_UNORM_X8_TYPELESS,
DXGI_FORMAT_X24_TYPELESS_G8_UINT,
DXGI_FORMAT_R8G8_TYPELESS,
DXGI_FORMAT_R8G8_UNORM,
DXGI_FORMAT_R8G8_UINT,
DXGI_FORMAT_R8G8_SNORM,
DXGI_FORMAT_R8G8_SINT,
DXGI_FORMAT_R16_TYPELESS,
DXGI_FORMAT_R16_FLOAT,
DXGI_FORMAT_D16_UNORM,
DXGI_FORMAT_R16_UNORM,
DXGI_FORMAT_R16_UINT,
DXGI_FORMAT_R16_SNORM,
DXGI_FORMAT_R16_SINT,
DXGI_FORMAT_R8_TYPELESS,
DXGI_FORMAT_R8_UNORM,
DXGI_FORMAT_R8_UINT,
DXGI_FORMAT_R8_SNORM,
DXGI_FORMAT_R8_SINT,
DXGI_FORMAT_A8_UNORM,
DXGI_FORMAT_R1_UNORM,
DXGI_FORMAT_R9G9B9E5_SHAREDEXP,
DXGI_FORMAT_R8G8_B8G8_UNORM,
DXGI_FORMAT_G8R8_G8B8_UNORM,
DXGI_FORMAT_BC1_TYPELESS,
DXGI_FORMAT_BC1_UNORM,
DXGI_FORMAT_BC1_UNORM_SRGB,
DXGI_FORMAT_BC2_TYPELESS,
DXGI_FORMAT_BC2_UNORM,
DXGI_FORMAT_BC2_UNORM_SRGB,
DXGI_FORMAT_BC3_TYPELESS,
DXGI_FORMAT_BC3_UNORM,
DXGI_FORMAT_BC3_UNORM_SRGB,
DXGI_FORMAT_BC4_TYPELESS,
DXGI_FORMAT_BC4_UNORM,
DXGI_FORMAT_BC4_SNORM,
DXGI_FORMAT_BC5_TYPELESS,
DXGI_FORMAT_BC5_UNORM,
DXGI_FORMAT_BC5_SNORM,
DXGI_FORMAT_B5G6R5_UNORM,
DXGI_FORMAT_B5G5R5A1_UNORM,
DXGI_FORMAT_B8G8R8A8_UNORM,
DXGI_FORMAT_B8G8R8X8_UNORM,
DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM,
DXGI_FORMAT_B8G8R8A8_TYPELESS,
DXGI_FORMAT_B8G8R8A8_UNORM_SRGB,
DXGI_FORMAT_B8G8R8X8_TYPELESS,
DXGI_FORMAT_B8G8R8X8_UNORM_SRGB,
DXGI_FORMAT_BC6H_TYPELESS,
DXGI_FORMAT_BC6H_UF16,
DXGI_FORMAT_BC6H_SF16,
DXGI_FORMAT_BC7_TYPELESS,
DXGI_FORMAT_BC7_UNORM,
DXGI_FORMAT_BC7_UNORM_SRGB,
DXGI_FORMAT_AYUV,
DXGI_FORMAT_Y410,
DXGI_FORMAT_Y416,
DXGI_FORMAT_NV12,
DXGI_FORMAT_P010,
DXGI_FORMAT_P016,
DXGI_FORMAT_420_OPAQUE,
DXGI_FORMAT_YUY2,
DXGI_FORMAT_Y210,
DXGI_FORMAT_Y216,
DXGI_FORMAT_NV11,
DXGI_FORMAT_AI44,
DXGI_FORMAT_IA44,
DXGI_FORMAT_P8,
DXGI_FORMAT_A8P8,
DXGI_FORMAT_B4G4R4A4_UNORM,
DXGI_FORMAT_P208,
DXGI_FORMAT_V208,
DXGI_FORMAT_V408
);
TDDSHeader = packed record
Magic: TMagic4;
dwSize: Cardinal;
dwFlags: Cardinal;
dwHeight: Cardinal;
dwWidth: Cardinal;
dwPitchOrLinearSize: Cardinal;
dwDepth: Cardinal;
dwMipMapCount: Cardinal;
dwReserved1: array [0..10] of Cardinal;
ddspf: packed record
dwSize: Cardinal;
dwFlags: Cardinal;
dwFourCC: TMagic4;
dwRGBBitCount: Cardinal;
dwRBitMask: Cardinal;
dwGBitMask: Cardinal;
dwBBitMask: Cardinal;
dwABitMask: Cardinal;
end;
dwCaps: Cardinal;
dwCaps2: Cardinal;
dwCaps3: Cardinal;
dwCaps4: Cardinal;
dwReserved2: Cardinal;
end;
PDDSHeader = ^TDDSHeader;
TDDSHeaderDX10 = packed record
dxgiFormat: Integer;
resourceDimension: Cardinal;
miscFlags: Cardinal;
arraySize: Cardinal;
miscFlags2: Cardinal;
end;
PDDSHeaderDX10 = ^TDDSHeaderDX10;
const
DDSD_CAPS = $00000001;
DDSD_HEIGHT = $00000002;
DDSD_WIDTH = $00000004;
DDSD_PITCH = $00000008;
DDSD_PIXELFORMAT = $00001000;
DDSD_MIPMAPCOUNT = $00020000;
DDSD_LINEARSIZE = $00080000;
DDSD_DEPTH = $00800000;
DDSCAPS_COMPLEX = $00000008;
DDSCAPS_TEXTURE = $00001000;
DDSCAPS_MIPMAP = $00400000;
DDSCAPS2_CUBEMAP = $00000200;
DDSCAPS2_POSITIVEX = $00000400;
DDSCAPS2_NEGATIVEX = $00000800;
DDSCAPS2_POSITIVEY = $00001000;
DDSCAPS2_NEGATIVEY = $00002000;
DDSCAPS2_POSITIVEZ = $00004000;
DDSCAPS2_NEGATIVEZ = $00008000;
DDSCAPS2_VOLUME = $00200000;
DDPF_ALPHAPIXELS = $00000001;
DDPF_ALPHA = $00000002;
DDPF_FOURCC = $00000004;
DDPF_RGB = $00000040;
DDPF_YUV = $00000200;
DDPF_LUMINANCE = $00020000;
// DX10
DDS_DIMENSION_TEXTURE2D = $00000003;
DDS_RESOURCE_MISC_TEXTURECUBE = $00000004;
type
TwbBSArchive = class;
TBSArchiveType = (baNone, baTES3, baTES4, baFO3, baSSE, baFO4, baFO4dds, baSF, baSFdds);
TBSArchiveState = (stReading, stWriting);
TBSArchiveStates = set of TBSArchiveState;
TBSFileIterationProc = function(aArchive: TwbBSArchive; const aFileName: string;
aFileRecord: Pointer; aFolderRecord: Pointer; aData: Pointer): Boolean;
TDDSInfo = record Width, Height, MipMaps: Integer; end;
TBSFileDDSInfoProc = procedure(aArchive: TwbBSArchive; const aFileName: string;
var aInfo: TDDSInfo);
TwbBSHeaderTES3 = packed record
HashOffset: Cardinal;
FileCount: Cardinal;
end;
TwbBSFileTES3 = record
Hash: UInt64;
Size: Cardinal;
Offset: Cardinal;
Name: string;
end;
PwbBSFileTES3 = ^TwbBSFileTES3;
TwbBSHeaderTES4 = packed record
FoldersOffset: Cardinal;
Flags: Cardinal;
FolderCount: Cardinal;
FileCount: Cardinal;
FolderNamesLength: Cardinal;
FileNamesLength: Cardinal;
FileFlags: Cardinal;
end;
TwbBSFileTES4 = record
Hash: UInt64;
Size: Cardinal;
Offset: Int64;
Name: string;
PackingCompression: TPackingCompression;
function Compress(bsa: TwbBSArchive): Boolean; // compress when packing into a new archive
function Compressed(bsa: TwbBSArchive): Boolean; // compressed in existing archive
function RawSize: Cardinal;
end;
PwbBSFileTES4 = ^TwbBSFileTES4;
TwbBSFolderTES4 = record
Hash: UInt64;
FileCount: Cardinal;
Unk32: Cardinal;
Offset: Int64;
Name: string;
Files: array of TwbBSFileTES4;
end;
PwbBSFolderTES4 = ^TwbBSFolderTES4;
TwbBSHeaderFO4 = packed record
Magic: TMagic4;
FileCount: Cardinal;
FileTableOffset: Int64;
end;
TwbBSHeaderSF = packed record
Unknown1: Cardinal;
Unknown2: Cardinal;
end;
TwbBSTexChunkRec = record
Size : Cardinal;
PackedSize : Cardinal;
Offset : Int64;
StartMip : Word;
EndMip : Word;
end;
PwbBSTexChunkRec = ^TwbBSTexChunkRec;
TwbBSFileFO4 = record
NameHash: Cardinal;
Ext: TMagic4;
DirHash: Cardinal;
// GNRL archive format
Unknown: Cardinal;
Offset: Int64;
PackedSize: Cardinal;
Size: Cardinal;
//
// DX10 archive format
UnknownTex : Byte;
//ChunkHeaderSize: Word;
Height : Word;
Width : Word;
NumMips : Byte;
DXGIFormat : Byte;
CubeMaps : Word;
TexChunks : array of TwbBSTexChunkRec;
//
Name: string;
PackingCompression: TPackingCompression;
function DXGIFormatName: string;
function Compress(bsa: TwbBSArchive): Boolean; // compress when packing into a new archive
function Compressed(bsa: TwbBSArchive): Boolean; // compressed in existing archive
end;
PwbBSFileFO4 = ^TwbBSFileFO4;
TPackedDataHash = TMD5Digest;
TPackedDataInfo = record
Size: Cardinal;
Hash: TPackedDataHash;
FileRecord: Pointer;
end;
PPackedDataInfo = ^TPackedDataInfo;
TwbBSArchive = class
private
fStream: TwbBaseCachedFileStream;
fStates: TBSArchiveStates;
fType: TBSArchiveType;
fFileName: string;
fMagic: TMagic4;
fVersion: Cardinal;
fCompress: Boolean;
fShareData: Boolean;
fMultiThreaded: Boolean;
fDDSInfoProc: TBSFileDDSInfoProc;
fHeaderTES3: TwbBSHeaderTES3;
fFilesTES3: array of TwbBSFileTES3;
fHeaderTES4: TwbBSHeaderTES4;
fFoldersTES4: array of TwbBSFolderTES4;
fHeaderFO4: TwbBSHeaderFO4;
fHeaderSF: TwbBSHeaderSF;
fFilesFO4: array of TwbBSFileFO4;
fMaxChunkCount: Integer;
fSingleMipChunkX: Integer;
fSingleMipChunkY: Integer;
fDataOffset: Int64;
fPackedData: array of TPackedDataInfo;
fPackedDataCount: Integer;
{$IF CompilerVersion >= 34.0} { Delphi 10.4 }
Sync: TLightweightMREW;
{$ELSE}
Sync: IReadWriteSync;
{$IFEND}
function GetArchiveFormatName: string;
function GetFileCount: Cardinal;
function GetCreatedArchiveSize: Int64;
procedure SetArchiveFlags(aFlags: Cardinal);
procedure SetMultiThreaded(aValue: Boolean);
function FindFileRecordTES3(const aFileName: string; var aFileIdx: Integer): Boolean;
function FindFileRecordTES4(const aFileName: string; var aFolderIdx, aFileIdx: Integer): Boolean;
function FindFileRecordFO4(const aFileName: string; var aFileIdx: Integer): Boolean;
function GetDDSMipChunkNum(var aDDSInfo: TDDSInfo): Integer;
function CalcDataHash(aData: Pointer; aLen: Cardinal): TPackedDataHash;
function FindPackedData(aSize: Cardinal; aHash: TPackedDataHash; aFileRecord: Pointer): Boolean;
procedure AddPackedData(aSize: Cardinal; aHash: TPackedDataHash; aFileRecord: Pointer);
procedure PackData(aFileRecord: Pointer; const aFileName: string;
aDataHash: TPackedDataHash; aData: PByte; aSize: Integer;
aCompress: Boolean; aDoCompress: Boolean = False);
public
constructor Create;
destructor Destroy; override;
procedure LoadFromFile(const aFileName: string);
procedure CreateArchive(const aFileName: string; aType: TBSArchiveType;
aFilesList: TStringList = nil);
procedure Save;
procedure AddFile(const aRootDir, aFileName: string); overload;
procedure AddFile(const aFileName: string; const aData: TBytes); overload;
function FindFileRecord(const aFileName: string): Pointer;
function ExtractFileData(aFileRecord: Pointer): TBytes; overload;
function ExtractFileData(const aFileName: string): TBytes; overload;
procedure ExtractFileToStream(const aFileName: string; aStream: TStream);
procedure ExtractFile(const aFileName, aSaveAs: string);
procedure IterateFiles(aProc: TBSFileIterationProc; aData: Pointer = nil;
aSingleThreaded: Boolean = False);
function FileExists(const aFileName: string): Boolean;
procedure ResourceList(const aList: TStrings; aFolder: string = '');
//procedure IterateFolders(aProc: TBSFileIterationProc);
procedure Close;
procedure SyncBeginWrite;
procedure SyncEndWrite;
property FileName: string read fFileName;
property ArchiveType: TBSArchiveType read fType;
property Version: Cardinal read fVersion;
property FormatName: string read GetArchiveFormatName;
property FileCount: Cardinal read GetFileCount;
property CreatedArchiveSize: Int64 read GetCreatedArchiveSize;
property ArchiveFlags: Cardinal read fHeaderTES4.Flags write SetArchiveFlags;
property FileFlags: Cardinal read fHeaderTES4.FileFlags write fHeaderTES4.FileFlags;
property Compress: Boolean read fCompress write fCompress;
property ShareData: Boolean read fShareData write fShareData;
property MultiThreaded: Boolean read fMultiThreaded write SetMultiThreaded;
property DDSInfoProc: TBSFileDDSInfoProc read fDDSInfoProc write fDDSInfoProc;
end;
const
cArchiveFormatNames: array[TBSArchiveType] of string = (
'None',
'Morrowind',
'Oblivion',
'Skyrim LE, New Vegas, Fallout 3',
'Skyrim SE, Skyrim AE',
'Fallout 4',
'Fallout 4 DDS',
'Starfield',
'Starfield DDS'
);
cArchiveTypeExtensions: array[TBSArchiveType] of string = (
'.bsa',
'.bsa',
'.bsa',
'.bsa',
'.bsa',
'.ba2',
'.ba2',
'.ba2',
'.ba2'
);
cArchiveFlagNames: array [0..31] of string = (
'Include Directory Names', 'Include File Names', 'Compressed',
'Retain Directory Names', 'Retain File Names',
'Retain File Name Offsets', 'XBox 360 Archive',
'Retain Strings During Startup',
'Embed File Names', 'XMem Codec', '', '',
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', ''
);
cFileFlagNames: array [0..31] of string = (
'Meshes', 'Textures', 'Menus', 'Sounds',
'Voices', 'Shaders', 'Trees', 'Fonts',
'Misc', '', '', '',
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', ''
);
function SplitDirName(const aFileName: string; var Dir, Name: string): Integer;
function SplitNameExt(const aFileName: string; var Name, Ext: string; aNoExtDot: Boolean = False): Integer;
function CreateHashTES3(const aFileName: string): UInt64;
function CreateHashTES4(const aFileName: string): UInt64; overload;
function CreateHashTES4(const aName, aExt: string): UInt64; overload;
function CreateHashFO4(const aFileName: string): Cardinal;
implementation
uses
TypInfo,
zlibEx,
lz4io;
const
MAGIC_TES3: TMagic4 = #0#1#0#0;
MAGIC_BSA : TMagic4 = 'BSA'#0;
MAGIC_BTDX: TMagic4 = 'BTDX';
MAGIC_GNRL: TMagic4 = 'GNRL';
MAGIC_DX10: TMagic4 = 'DX10';
MAGIC_DDS : TMagic4 = 'DDS ';
MAGIC_DXT1: TMagic4 = 'DXT1';
MAGIC_DXT3: TMagic4 = 'DXT3';
MAGIC_DXT5: TMagic4 = 'DXT5';
MAGIC_ATI1: TMagic4 = 'ATI1';
MAGIC_ATI2: TMagic4 = 'ATI2';
MAGIC_BC4S: TMagic4 = 'BC4S';
MAGIC_BC4U: TMagic4 = 'BC4U';
MAGIC_BC5S: TMagic4 = 'BC5S';
MAGIC_BC5U: TMagic4 = 'BC5U';
iFileFO4Unknown = $00100100;
iFileFO4Tail = $BAADF00D;
{ https://github.com/jonwd7/bae/blob/master/src/bsa.h }
// header versions
HEADER_VERSION_TES4 = $67; // Oblivion
HEADER_VERSION_FO3 = $68; // FO3, FNV, TES5
HEADER_VERSION_SSE = $69; // SSE
HEADER_VERSION_FO4 = $01; // FO4
HEADER_VERSION_SFa = $02; // SF
HEADER_VERSION_SFb = $03; // SF?
// archive flags
ARCHIVE_PATHNAMES = $0001; // Whether the BSA has names for paths
ARCHIVE_FILENAMES = $0002; // Whether the BSA has names for files
ARCHIVE_COMPRESS = $0004; // Whether the files are compressed in archive (invert file's compression flag)
ARCHIVE_RETAINDIR = $0008;
ARCHIVE_RETAINNAME = $0010;
ARCHIVE_RETAINFOFF = $0020;
ARCHIVE_XBOX360 = $0040;
ARCHIVE_STARTUPSTR = $0080;
ARCHIVE_EMBEDNAME = $0100; // Whether the name is prefixed to the data
ARCHIVE_XMEM = $0200;
ARCHIVE_UNKNOWN10 = $0400;
// file flags
FILE_NIF = $0001;
FILE_DDS = $0002;
FILE_XML = $0004;
FILE_WAV = $0008;
FILE_MP3 = $0010;
FILE_TXT = $0020; // TXT, HTML, BAT, SCC
FILE_SPT = $0040;
FILE_FNT = $0080; // TEX, FNT
FILE_MISC = $0100; // CTL and others
FILE_SIZE_COMPRESS = $40000000; // Whether the file is compressed
crc32table : array [0..255] of Cardinal = (
$00000000, $77073096, $ee0e612c, $990951ba, $076dc419, $706af48f,
$e963a535, $9e6495a3, $0edb8832, $79dcb8a4, $e0d5e91e, $97d2d988,
$09b64c2b, $7eb17cbd, $e7b82d07, $90bf1d91, $1db71064, $6ab020f2,
$f3b97148, $84be41de, $1adad47d, $6ddde4eb, $f4d4b551, $83d385c7,
$136c9856, $646ba8c0, $fd62f97a, $8a65c9ec, $14015c4f, $63066cd9,
$fa0f3d63, $8d080df5, $3b6e20c8, $4c69105e, $d56041e4, $a2677172,
$3c03e4d1, $4b04d447, $d20d85fd, $a50ab56b, $35b5a8fa, $42b2986c,
$dbbbc9d6, $acbcf940, $32d86ce3, $45df5c75, $dcd60dcf, $abd13d59,
$26d930ac, $51de003a, $c8d75180, $bfd06116, $21b4f4b5, $56b3c423,
$cfba9599, $b8bda50f, $2802b89e, $5f058808, $c60cd9b2, $b10be924,
$2f6f7c87, $58684c11, $c1611dab, $b6662d3d, $76dc4190, $01db7106,
$98d220bc, $efd5102a, $71b18589, $06b6b51f, $9fbfe4a5, $e8b8d433,
$7807c9a2, $0f00f934, $9609a88e, $e10e9818, $7f6a0dbb, $086d3d2d,
$91646c97, $e6635c01, $6b6b51f4, $1c6c6162, $856530d8, $f262004e,
$6c0695ed, $1b01a57b, $8208f4c1, $f50fc457, $65b0d9c6, $12b7e950,
$8bbeb8ea, $fcb9887c, $62dd1ddf, $15da2d49, $8cd37cf3, $fbd44c65,
$4db26158, $3ab551ce, $a3bc0074, $d4bb30e2, $4adfa541, $3dd895d7,
$a4d1c46d, $d3d6f4fb, $4369e96a, $346ed9fc, $ad678846, $da60b8d0,
$44042d73, $33031de5, $aa0a4c5f, $dd0d7cc9, $5005713c, $270241aa,
$be0b1010, $c90c2086, $5768b525, $206f85b3, $b966d409, $ce61e49f,
$5edef90e, $29d9c998, $b0d09822, $c7d7a8b4, $59b33d17, $2eb40d81,
$b7bd5c3b, $c0ba6cad, $edb88320, $9abfb3b6, $03b6e20c, $74b1d29a,
$ead54739, $9dd277af, $04db2615, $73dc1683, $e3630b12, $94643b84,
$0d6d6a3e, $7a6a5aa8, $e40ecf0b, $9309ff9d, $0a00ae27, $7d079eb1,
$f00f9344, $8708a3d2, $1e01f268, $6906c2fe, $f762575d, $806567cb,
$196c3671, $6e6b06e7, $fed41b76, $89d32be0, $10da7a5a, $67dd4acc,
$f9b9df6f, $8ebeeff9, $17b7be43, $60b08ed5, $d6d6a3e8, $a1d1937e,
$38d8c2c4, $4fdff252, $d1bb67f1, $a6bc5767, $3fb506dd, $48b2364b,
$d80d2bda, $af0a1b4c, $36034af6, $41047a60, $df60efc3, $a867df55,
$316e8eef, $4669be79, $cb61b38c, $bc66831a, $256fd2a0, $5268e236,
$cc0c7795, $bb0b4703, $220216b9, $5505262f, $c5ba3bbe, $b2bd0b28,
$2bb45a92, $5cb36a04, $c2d7ffa7, $b5d0cf31, $2cd99e8b, $5bdeae1d,
$9b64c2b0, $ec63f226, $756aa39c, $026d930a, $9c0906a9, $eb0e363f,
$72076785, $05005713, $95bf4a82, $e2b87a14, $7bb12bae, $0cb61b38,
$92d28e9b, $e5d5be0d, $7cdcefb7, $0bdbdf21, $86d3d2d4, $f1d4e242,
$68ddb3f8, $1fda836e, $81be16cd, $f6b9265b, $6fb077e1, $18b74777,
$88085ae6, $ff0f6a70, $66063bca, $11010b5c, $8f659eff, $f862ae69,
$616bffd3, $166ccf45, $a00ae278, $d70dd2ee, $4e048354, $3903b3c2,
$a7672661, $d06016f7, $4969474d, $3e6e77db, $aed16a4a, $d9d65adc,
$40df0b66, $37d83bf0, $a9bcae53, $debb9ec5, $47b2cf7f, $30b5ffe9,
$bdbdf21c, $cabac28a, $53b39330, $24b4a3a6, $bad03605, $cdd70693,
$54de5729, $23d967bf, $b3667a2e, $c4614ab8, $5d681b02, $2a6f2b94,
$b40bbe37, $c30c8ea1, $5a05df1b, $2d02ef8d
);
type
TPreallocatedMemoryStream = class(TCustomMemoryStream)
public
constructor Create(Ptr: Pointer; Size: Int64);
function Write(const Buffer; Count: Longint): Longint; override;
end;
constructor TPreallocatedMemoryStream.Create(Ptr: Pointer; Size: Int64);
begin
inherited Create;
SetPointer(Ptr, Size);
end;
function TPreallocatedMemoryStream.Write(const Buffer; Count: Integer): Longint;
begin
Result := Size-Position;
if Result > Count then
Result := Count;
System.Move(Buffer, Pointer(PByte(Memory) + Position)^, Result);
Seek(Result, soCurrent);
end;
function Magic2Int(aMagic: TMagic4): Cardinal; inline;
begin
Result := PCardinal(@aMagic)^;
end;
function Int2Magic(aInt: Cardinal): TMagic4; inline;
begin
Result := PMagic4(@aInt)^;
end;
function String2Magic(const aStr: string): TMagic4;
begin
Result := #0#0#0#0;
if Length(aStr) > 0 then Result[0] := AnsiChar(aStr[1]);
if Length(aStr) > 1 then Result[1] := AnsiChar(aStr[2]);
if Length(aStr) > 2 then Result[2] := AnsiChar(aStr[3]);
if Length(aStr) > 3 then Result[3] := AnsiChar(aStr[4]);
end;
function LowerByte(ch: AnsiChar): Byte; inline;
begin
case ch of
'A'..'Z':
Result := Byte(Ord(ch) + Ord('a')-Ord('A'));
else
Result := Byte(ch);
end;
end;
function LastCharPos(const s: string; const Chr: char): Integer; inline;
begin
for Result := Length(s) downto 1 do
if s[Result] = Chr then
Exit;
Result := 0;
end;
function Str2MagicInt(const s: string): Cardinal;
var
i: integer;
begin
Result := 0;
for i := 1 to Length(s) do begin
PByte(PByte(@Result) + i-1)^ := LowerByte(AnsiChar(s[i]));
if i = 4 then Break;
end;
end;
function SplitDirName(const aFileName: string; var Dir, Name: string): Integer;
begin
Result := LastCharPos(aFileName, '\');
if Result = 0 then
Result := LastCharPos(aFileName, '/');
if Result <> 0 then begin
Dir := Copy(aFileName, 1, Pred(Result));
Name := Copy(aFileName, Succ(Result), Length(aFileName) - Result);
end
else begin
Dir := '';
Name := aFileName;
end;
end;
function SplitNameExt(const aFileName: string; var Name, Ext: string; aNoExtDot: Boolean = False): Integer;
begin
Result := LastCharPos(aFileName, '.');
if Result <> 0 then begin
Name := Copy(aFileName, 1, Pred(Result));
if aNoExtDot then
Inc(Result);
Ext := Copy(aFileName, Result, Length(aFileName) - Result + 1);
end
else begin
Name := aFileName;
Ext := '';
end;
end;
function CreateHashTES3(const aFileName: string): UInt64;
var
s: AnsiString;
i, l: integer;
sum, off, temp, n: Cardinal;
begin
s := AnsiString(aFileName);
l := Length(s) shr 1;
sum := 0; off := 0;
for i := 1 to l do begin
temp := Cardinal(LowerByte(s[i])) shl (off and $1F);
sum := sum xor temp;
off := off + 8;
end;
Result := UInt64(sum) shl 32;
sum := 0; off := 0;
for i := l + 1 to Length(s) do begin
temp := Cardinal(LowerByte(s[i])) shl (off and $1F);
sum := sum xor temp;
n := temp and $1F;
sum := (sum shr n) or (sum shl (32 - n));
off := off + 8;
end;
Result := Result or sum;
end;
function CreateHashTES4(const aName, aExt: string): UInt64; overload;
var
i, l: integer;
hash: Cardinal;
ext: array [0..3] of Byte;
s, e: AnsiString;
begin
Result := 0;
s := AnsiString(aName);
e := AnsiString(aExt);
l := Length(s);
if l = 0 then
Exit;
Result := LowerByte(s[l]);
if l > 2 then
Result := Result or (Cardinal(LowerByte(s[l-1])) shl 8);
Result := Result or (l shl 16);
Result := Result or (Cardinal(LowerByte(s[1])) shl 24);
PCardinal(@ext)^ := 0;
for i := 1 to Length(e) do begin
ext[i-1] := LowerByte(e[i]);
if i = 4 then Break;
end;
case PCardinal(@ext)^ of
$00666B2E: Result := Result or $80; // .kf
$66696E2E: Result := Result or $8000; // .nif
$7364642E: Result := Result or $8080; // .dds
$7661772E: Result := Result or $80000000; // .wav
end;
hash := 0;
for i := 2 to l-2 do
hash := LowerByte(s[i]) + (hash shl 6) + (hash shl 16) - hash;
Result := Result + UInt64(hash) shl 32;
hash := 0;
for i := 1 to Length(e) do
hash := LowerByte(e[i]) + (hash shl 6) + (hash shl 16) - hash;
Result := Result + UInt64(hash) shl 32;
end;
function CreateHashTES4(const aFileName: string): UInt64; overload;
var
fname, fext: string;
begin
SplitNameExt(aFileName, fname, fext);
Result := CreateHashTES4(fname, fext);
end;
function CreateHashFO4(const aFileName: string): Cardinal;
var
i: Integer;
s: AnsiString;
c: AnsiChar;
begin
Result := 0;
s := AnsiString(aFileName);
for i := 1 to Length(s) do begin
c := s[i];
if Byte(c) > 127 then Continue;
if c = '/' then c := '\';
Result := (Result shr 8) xor crc32table[(Result xor LowerByte(c)) and $FF];
end;
end;
function TwbBSFileTES4.Compress(bsa: TwbBSArchive): Boolean;
begin
case PackingCompression of
pcCompress : Result := True;
pcUncompress: Result := False;
else
Result := bsa.Compress;
end;
end;
function TwbBSFileTES4.Compressed(bsa: TwbBSArchive): Boolean;
begin
Result := (bsa.ArchiveFlags and ARCHIVE_COMPRESS <> 0) xor (Size and FILE_SIZE_COMPRESS <> 0);
end;
function TwbBSFileTES4.RawSize: Cardinal;
begin
Result := Size and not FILE_SIZE_COMPRESS;
end;
function TwbBSFileFO4.DXGIFormatName: string;
begin
Result := GetEnumName(TypeInfo(TDXGI), Integer(DXGIFormat));
end;
function TwbBSFileFO4.Compress(bsa: TwbBSArchive): Boolean;
begin
case PackingCompression of
pcCompress : Result := True;
pcUncompress: Result := False;
else
Result := bsa.Compress;
end;
end;
function TwbBSFileFO4.Compressed(bsa: TwbBSArchive): Boolean;
begin
if bsa.ArchiveType = baFO4 then
Result := PackedSize <> 0
else
Result := (Length(TexChunks) <> 0) and (TexChunks[0].PackedSize <> 0);
end;
{ TwbBSArchive }
constructor TwbBSArchive.Create;
begin
fType := baNone;
fMaxChunkCount := 4;
fSingleMipChunkX := 512;
fSingleMipChunkY := 512;
end;
destructor TwbBSArchive.Destroy;
begin
if fStates * [stReading, stWriting] <> [] then
Close;
end;
function TwbBSArchive.GetArchiveFormatName: string;
begin
Result := cArchiveFormatNames[fType];
end;
function TwbBSArchive.GetFileCount: Cardinal;
begin
case fType of
baTES3:
Result := fHeaderTES3.FileCount;
baTES4, baFO3, baSSE:
Result := fHeaderTES4.FileCount;
baFO4, baFO4dds, baSF, baSFdds:
Result := fHeaderFO4.FileCount;
else
Result := 0;
end;
end;
procedure TwbBSArchive.SetArchiveFlags(aFlags: Cardinal);
begin
if not (fType in [baTES4, baFO3, baSSE]) then
raise Exception.Create('Archive flags are not supported for this archive type');
fHeaderTES4.Flags := aFlags;
// force compression flag if needed
if fCompress then
fHeaderTES4.Flags := fHeaderTES4.Flags or ARCHIVE_COMPRESS;
end;
procedure TwbBSArchive.SetMultiThreaded(aValue: Boolean);
begin
fMultiThreaded := aValue;
{$IF CompilerVersion < 34.0}
if aValue and not Assigned(Sync) then
Sync := TReadWriteSync.Create;
{$IFEND}
end;
function TwbBSArchive.FindFileRecordTES3(const aFileName: string; var aFileIdx: Integer): Boolean;
var
h: UInt64;
i: integer;
begin
h := CreateHashTES3(aFileName);
Result := False;
for i := Low(fFilesTES3) to High(fFilesTES3) do
if fFilesTES3[i].Hash = h then begin
aFileIdx := i;
Result := True;
Exit;
end;
end;
function TwbBSArchive.FindFileRecordTES4(const aFileName: string; var aFolderIdx, aFileIdx: Integer): Boolean;
var
fdir, fname, name, ext: string;
h: UInt64;
i, j: integer;
begin
SplitDirName(aFileName, fdir, fname);
Result := False;
h := CreateHashTES4(fdir, '');
for i := Low(fFoldersTES4) to High(fFoldersTES4) do begin
if h <> fFoldersTES4[i].Hash then
// since table is sorted by hash, we can abort when our hash is lesser
if h < fFoldersTES4[i].Hash then
Exit
else
Continue;
SplitNameExt(fname, name, ext);
h := CreateHashTES4(name, ext);
for j := Low(fFoldersTES4[i].Files) to High(fFoldersTES4[i].Files) do begin
if h <> fFoldersTES4[i].Files[j].Hash then
if h < fFoldersTES4[i].Files[j].Hash then
Exit
else
Continue;
Result := True;
aFolderIdx := i;
aFileIdx := j;
Exit;
end;
end;
end;
function TwbBSArchive.FindFileRecordFO4(const aFileName: string; var aFileIdx: Integer): Boolean;
var
fdir, fname, name, ext: string;
hdir, hfile: Cardinal;
hext: TMagic4;
i: integer;
begin
SplitDirName(aFileName, fdir, fname);
SplitNameExt(fname, name, ext, True);
hdir := CreateHashFO4(fdir);
hfile := CreateHashFO4(name);
hext := String2Magic(LowerCase(ext));
Result := False;
for i := Low(fFilesFO4) to High(fFilesFO4) do
if (fFilesFO4[i].DirHash = hdir) and (fFilesFO4[i].NameHash = hfile) and (fFilesFO4[i].Ext = hext) then begin
aFileIdx := i;
Result := True;
Exit;
end;
end;
function TwbBSArchive.FindFileRecord(const aFileName: string): Pointer;
var
i, j: integer;
begin
Result := nil;
case fType of
baTES3:
if FindFileRecordTES3(aFileName, i) then Result := @fFilesTES3[i];
baTES4, baFO3, baSSE:
if FindFileRecordTES4(aFileName, i, j) then Result := @fFoldersTES4[i].Files[j];
baFO4, baFO4dds, baSF, baSFdds:
if FindFileRecordFO4(aFileName, i) then Result := @fFilesFO4[i];
end;
end;
function TwbBSArchive.GetDDSMipChunkNum(var aDDSInfo: TDDSInfo): Integer;
var
w, h: Integer;
begin
w := aDDSInfo.Width;
h := aDDSInfo.Height;
Result := 1;
while (Result < aDDSInfo.MipMaps) and
(Result < fMaxChunkCount) and
(w >= fSingleMipChunkX) and
(h >= fSingleMipChunkY)
do begin
Inc(Result);
w := w div 2;
h := h div 2;
end;
end;
function TwbBSArchive.CalcDataHash(aData: Pointer; aLen: Cardinal): TPackedDataHash;
var
fMD5: TMD5Alg;
begin
fMD5.Init(@fMD5);
fMD5.Update(@fMD5, aData, aLen);
fMD5.Done(@fMD5, @Result);
end;
function TwbBSArchive.FindPackedData(aSize: Cardinal; aHash: TPackedDataHash; aFileRecord: Pointer): Boolean;
var
i: Integer;
begin