1 | unit Access_OniArchive; |
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2 | interface |
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3 | |
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4 | uses DataAccess, Classes, TypeDefs; |
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5 | |
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6 | type |
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7 | TAccess_OniArchive = class(TDataAccess) |
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8 | private |
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9 | Fdat_file: TFileStream; |
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10 | Fraw_file: TFileStream; |
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11 | Fsep_file: TFileStream; |
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12 | Fdat_files: TFiles; |
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13 | Fdat_extensionsmap: TExtensionsMap; |
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14 | FUnloadWhenUnused: Boolean; |
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15 | FDatOpened: Boolean; |
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16 | FRawOpened: Boolean; |
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17 | FSepOpened: Boolean; |
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18 | procedure SetUnloadWhenUnused(doit: Boolean); |
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19 | protected |
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20 | public |
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21 | property UnloadWhenUnused: Boolean Read FUnloadWhenUnused Write SetUnloadWhenUnused; |
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22 | |
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23 | constructor Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); override; |
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24 | procedure Close; override; |
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25 | |
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26 | function GetFileInfo(FileID: Integer): TFileInfo; override; |
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27 | function GetFilesList(Ext: String; Pattern: String; |
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28 | NoEmptyFiles: Boolean; SortType: TSortType): TStrings; override; |
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29 | function GetFileCount: Integer; override; |
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30 | function GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; override; |
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31 | |
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32 | procedure LoadDatFile(FileID: Integer; var Target: TStream); overload; override; |
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33 | procedure UpdateDatFile(FileID: Integer; Src: TStream); overload; override; |
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34 | procedure LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); overload; override; |
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35 | procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; override; |
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36 | |
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37 | function GetDatLinks(FileID: Integer): TDatLinkList; override; |
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38 | function GetDatLink(FileID, DatOffset: Integer): TDatLink; override; |
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39 | function GetRawList(FileID: Integer): TRawDataList; override; |
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40 | function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; override; |
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41 | function GetRawsForType(RawType: String): TRawDataList; override; |
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42 | |
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43 | procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream); overload; |
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44 | procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer); overload; |
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45 | procedure LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); overload; override; |
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46 | procedure UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); overload; override; |
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47 | procedure LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); overload; override; |
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48 | procedure UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); overload; override; |
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49 | |
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50 | function AppendRawFile(LocSep: Boolean; Src: TStream): Integer; overload; override; |
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51 | published |
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52 | end; |
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53 | |
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54 | implementation |
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55 | |
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56 | uses |
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57 | SysUtils, StrUtils, Data, Functions, RawList, DatLinks, Math; |
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58 | |
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59 | |
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60 | (* |
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61 | ================================================================================ |
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62 | Implementation of TOniDataDat |
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63 | *) |
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64 | |
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65 | |
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66 | constructor TAccess_OniArchive.Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); |
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67 | var |
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68 | i: Integer; |
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69 | header_pc, header_mac, header_macbeta: Boolean; |
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70 | Fdat_header: THeader; |
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71 | Fdat_filesmap: TFilesMap; |
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72 | Fdat_namedfilesmap: TNamedFilesMap; |
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73 | begin |
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74 | FUnloadWhenUnused := True; |
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75 | FDatOpened := False; |
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76 | FRawOpened := False; |
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77 | Msg := SM_UnknownError; |
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78 | if not FileExists(DatFilename) then |
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79 | begin |
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80 | Msg := SM_FileNotFound; |
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81 | Exit; |
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82 | end; |
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83 | FFileName := DatFilename; |
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84 | Fdat_file := TFileStream.Create(FFileName, fmOpenRead); |
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85 | Fdat_file.Read(Fdat_header, SizeOf(Fdat_header)); |
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86 | header_pc := True; |
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87 | header_mac := True; |
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88 | header_macbeta := True; |
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89 | for i := 0 to High(Fdat_header.GlobalIdent) do |
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90 | if Fdat_header.GlobalIdent[i] <> HeaderGlobalIdent[i] then |
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91 | begin |
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92 | Msg := SM_IncompatibleFile; |
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93 | Exit; |
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94 | end; |
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95 | |
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96 | for i := 0 to High(Fdat_header.OSIdent) do |
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97 | begin |
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98 | if Fdat_header.OSIdent[i] <> HeaderOSIdentWin[i] then |
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99 | header_pc := False; |
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100 | if Fdat_header.OSIdent[i] <> HeaderOSIdentMac[i] then |
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101 | header_mac := False; |
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102 | if Fdat_header.OSIdent[i] <> HeaderOSIdentMacBeta[i] then |
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103 | header_macbeta := False; |
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104 | end; |
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105 | if not (header_pc xor header_mac xor header_macbeta) then |
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106 | begin |
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107 | Msg := SM_IncompatibleFile; |
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108 | Exit; |
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109 | end |
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110 | else |
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111 | begin |
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112 | if (header_pc and not header_mac and not header_macbeta) then |
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113 | FDataOS := DOS_WIN |
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114 | else if (not header_pc and header_mac and not header_macbeta) then |
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115 | FDataOS := DOS_MAC |
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116 | else if (not header_pc and not header_mac and header_macbeta) then |
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117 | FDataOS := DOS_MACBETA; |
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118 | end; |
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119 | SetLength(Fdat_filesmap, Fdat_header.Files); |
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120 | SetLength(Fdat_files, Fdat_header.Files); |
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121 | for i := 0 to Fdat_header.Files - 1 do |
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122 | Fdat_file.Read(Fdat_filesmap[i], SizeOf(Fdat_filesmap[i])); |
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123 | for i := 0 to Fdat_header.Files - 1 do |
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124 | begin |
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125 | Fdat_files[i].ID := i; |
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126 | Fdat_files[i].Extension := Fdat_filesmap[i].Extension; |
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127 | Fdat_files[i].Extension := ReverseString(Fdat_files[i].Extension); |
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128 | Fdat_files[i].Size := Fdat_filesmap[i].FileSize; |
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129 | Fdat_files[i].FileType := Fdat_filesmap[i].FileType; |
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130 | Fdat_files[i].DatAddr := Fdat_filesmap[i].DataAddr - 8 + Fdat_header.DataAddr; |
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131 | if (Fdat_filesmap[i].FileType and $01) = 0 then |
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132 | begin |
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133 | Fdat_file.Seek(Fdat_filesmap[i].NameAddr + Fdat_header.NamesAddr, soFromBeginning); |
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134 | SetLength(Fdat_files[i].Name, 100); |
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135 | Fdat_file.Read(Fdat_files[i].Name[1], 100); |
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136 | Fdat_files[i].Name := MidStr(Fdat_files[i].Name, 1 + 4, Pos( |
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137 | #0, Fdat_files[i].Name) - 1 - 4); |
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138 | end |
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139 | else |
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140 | begin |
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141 | Fdat_files[i].Name := ''; |
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142 | end; |
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143 | end; |
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144 | Fdat_file.Seek($40 + Fdat_header.Files * $14, soFromBeginning); |
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145 | SetLength(Fdat_namedfilesmap, Fdat_header.NamedFiles); |
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146 | for i := 0 to Fdat_header.NamedFiles - 1 do |
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147 | Fdat_file.Read(Fdat_namedfilesmap[i], SizeOf(Fdat_namedfilesmap[i])); |
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148 | |
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149 | Fdat_file.Seek($40 + Fdat_header.Files * $14 + Fdat_header.NamedFiles * $8, soFromBeginning); |
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150 | SetLength(Fdat_extensionsmap, Fdat_header.Extensions); |
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151 | for i := 0 to Fdat_header.Extensions - 1 do |
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152 | Fdat_file.Read(Fdat_extensionsmap[i], SizeOf(Fdat_extensionsmap[i])); |
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153 | |
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154 | Fdat_file.Seek(Fdat_files[0].DatAddr + 7, soFromBeginning); |
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155 | Fdat_file.Read(FLevelNumber, 1); |
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156 | FLevelNumber := FLevelNumber div 2; |
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157 | |
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158 | Fdat_file.Free; |
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159 | |
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160 | Msg := SM_OK; |
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161 | FBackend := DB_ONI; |
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162 | FConnectionID := ConnectionID; |
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163 | FChangeRights := [CR_EditDat, CR_EditRaw, CR_AppendRaw]; |
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164 | |
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165 | inherited; |
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166 | end; |
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167 | |
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168 | |
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169 | |
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170 | |
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171 | procedure TAccess_OniArchive.SetUnloadWhenUnused(doit: Boolean); |
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172 | begin |
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173 | FUnloadWhenUnused := doit; |
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174 | if FUnloadWhenUnused then |
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175 | begin |
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176 | if FDatOpened then |
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177 | begin |
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178 | FDatOpened := False; |
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179 | Fdat_file.Free; |
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180 | end; |
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181 | if FRawOpened then |
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182 | begin |
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183 | FRawOpened := False; |
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184 | Fraw_file.Free; |
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185 | end; |
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186 | if FSepOpened then |
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187 | begin |
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188 | FSepOpened := False; |
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189 | Fsep_file.Free; |
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190 | end; |
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191 | end |
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192 | else |
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193 | begin |
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194 | if not FDatOpened then |
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195 | begin |
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196 | Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite); |
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197 | FDatOpened := True; |
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198 | end; |
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199 | if not FRawOpened then |
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200 | begin |
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201 | Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'), |
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202 | fmOpenReadWrite); |
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203 | FRawOpened := True; |
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204 | end; |
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205 | if (not FSepOpened) and (FDataOS <> DOS_WIN) then |
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206 | begin |
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207 | Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'), |
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208 | fmOpenReadWrite); |
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209 | FSepOpened := True; |
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210 | end; |
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211 | end; |
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212 | end; |
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213 | |
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214 | |
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215 | |
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216 | |
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217 | |
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218 | procedure TAccess_OniArchive.Close; |
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219 | begin |
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220 | if FDatOpened then |
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221 | Fdat_file.Free; |
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222 | if FRawOpened then |
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223 | Fraw_file.Free; |
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224 | if FSepOpened then |
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225 | Fsep_file.Free; |
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226 | Self.Free; |
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227 | end; |
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228 | |
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229 | |
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230 | |
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231 | |
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232 | function TAccess_OniArchive.GetFileInfo(fileid: Integer): TFileInfo; |
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233 | begin |
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234 | if fileid = -1 then |
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235 | begin |
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236 | Result := inherited GetFileInfo(fileid); |
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237 | Exit; |
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238 | end; |
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239 | if fileid < Self.GetFileCount then |
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240 | Result := Fdat_files[fileid] |
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241 | else |
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242 | Result.ID := -1; |
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243 | end; |
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244 | |
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245 | |
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246 | |
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247 | |
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248 | function TAccess_OniArchive.GetFilesList(ext: String; pattern: String; |
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249 | NoEmptyFiles: Boolean; SortType: TSortType): TStrings; |
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250 | var |
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251 | i: Integer; |
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252 | list: TStringList; |
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253 | id, name, extension: String; |
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254 | fields: TStrings; |
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255 | |
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256 | procedure getfields; |
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257 | begin |
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258 | fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]); |
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259 | if SortType in [ST_IDAsc, ST_IDDesc] then |
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260 | begin |
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261 | id := fields.Strings[0]; |
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262 | name := fields.Strings[1]; |
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263 | extension := fields.Strings[2]; |
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264 | end; |
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265 | if SortType in [ST_NameAsc, ST_NameDesc] then |
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266 | begin |
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267 | id := fields.Strings[1]; |
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268 | name := fields.Strings[0]; |
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269 | extension := fields.Strings[2]; |
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270 | end; |
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271 | if SortType in [ST_ExtAsc, ST_ExtDesc] then |
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272 | begin |
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273 | id := fields.Strings[1]; |
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274 | name := fields.Strings[2]; |
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275 | extension := fields.Strings[0]; |
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276 | end; |
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277 | if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then |
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278 | begin |
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279 | id := fields.Strings[2]; |
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280 | name := fields.Strings[1]; |
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281 | extension := fields.Strings[0]; |
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282 | end; |
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283 | end; |
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284 | |
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285 | begin |
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286 | list := TStringList.Create; |
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287 | list.Sorted := True; |
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288 | if ext = '*' then |
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289 | ext := ''; |
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290 | for i := 0 to GetFileCount - 1 do |
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291 | begin |
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292 | if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and |
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293 | ((Length(pattern) = 0) or |
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294 | (Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then |
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295 | begin |
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296 | if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then |
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297 | begin |
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298 | id := FormatNumber(Fdat_files[i].ID, 5, '0'); |
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299 | name := Fdat_files[i].Name; |
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300 | extension := Fdat_files[i].Extension; |
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301 | |
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302 | case SortType of |
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303 | ST_IDAsc, ST_IDDesc: list.Add(id + ';' + name + ';' + extension); |
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304 | ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension); |
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305 | ST_ExtAsc, ST_ExtDesc: list.Add(extension + ';' + id + ';' + name); |
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306 | ST_ExtNameAsc, ST_ExtNameDesc: list.Add(name + ';' + extension + ';' + id); |
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307 | end; |
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308 | end; |
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309 | end; |
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310 | end; |
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311 | if not Assigned(Result) then |
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312 | Result := TStringList.Create; |
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313 | if list.Count > 0 then |
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314 | begin |
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315 | fields := TStringList.Create; |
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316 | if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then |
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317 | for i := 0 to list.Count - 1 do |
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318 | begin |
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319 | getfields; |
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320 | Result.Add(id + '-' + name + '.' + extension); |
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321 | end |
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322 | else |
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323 | for i := list.Count - 1 downto 0 do |
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324 | begin |
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325 | getfields; |
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326 | Result.Add(id + '-' + name + '.' + extension); |
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327 | end; |
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328 | fields.Free; |
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329 | end; |
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330 | list.Free; |
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331 | end; |
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332 | |
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333 | |
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334 | |
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335 | |
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336 | function TAccess_OniArchive.GetFileCount: Integer; |
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337 | begin |
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338 | Result := Length(Fdat_files); |
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339 | end; |
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340 | |
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341 | |
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342 | |
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343 | |
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344 | function TAccess_OniArchive.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; |
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345 | var |
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346 | i: Integer; |
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347 | begin |
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348 | if not Assigned(Result) then |
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349 | Result := TStringList.Create; |
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350 | if Result is TStringList then |
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351 | TStringList(Result).Sorted := True; |
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352 | for i := 0 to Length(Fdat_extensionsmap) - 1 do |
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353 | begin |
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354 | with Fdat_extensionsmap[i] do |
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355 | begin |
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356 | case ExtListFormat of |
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357 | EF_ExtOnly: |
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358 | Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]); |
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359 | EF_ExtCount: |
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360 | Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] + |
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361 | ' (' + IntToStr(ExtCount) + ')'); |
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362 | end; |
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363 | end; |
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364 | end; |
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365 | end; |
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366 | |
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367 | |
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368 | |
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369 | procedure TAccess_OniArchive.LoadDatFile(FileID: Integer; var Target: TStream); |
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370 | var |
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371 | streampos: Integer; |
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372 | begin |
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373 | if fileid < GetFileCount then |
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374 | begin |
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375 | if GetFileInfo(FileID).Size > 0 then |
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376 | begin |
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377 | if not Assigned(Target) then |
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378 | Target := TMemoryStream.Create; |
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379 | if not FDatOpened then |
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380 | Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite); |
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381 | Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning); |
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382 | streampos := Target.Position; |
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383 | Target.CopyFrom(Fdat_file, Fdat_files[fileid].Size); |
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384 | Target.Seek(streampos, soFromBeginning); |
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385 | if UnloadWhenUnused then |
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386 | begin |
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387 | Fdat_file.Free; |
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388 | FDatOpened := False; |
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389 | end |
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390 | else |
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391 | FDatOpened := True; |
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392 | end; |
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393 | end; |
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394 | end; |
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395 | |
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396 | procedure TAccess_OniArchive.UpdateDatFile(FileID: Integer; Src: TStream); |
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397 | begin |
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398 | if fileid < GetFileCount then |
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399 | begin |
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400 | if not FDatOpened then |
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401 | Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite); |
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402 | Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning); |
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403 | Fdat_file.CopyFrom(Src, Fdat_files[fileid].Size); |
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404 | if UnloadWhenUnused then |
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405 | begin |
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406 | Fdat_file.Free; |
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407 | FDatOpened := False; |
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408 | end |
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409 | else |
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410 | FDatOpened := True; |
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411 | end; |
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412 | end; |
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413 | |
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414 | procedure TAccess_OniArchive.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); |
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415 | var |
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416 | streampos: Integer; |
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417 | begin |
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418 | if fileid < GetFileCount then |
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419 | begin |
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420 | if not Assigned(Target) then |
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421 | Target := TMemoryStream.Create; |
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422 | if not FDatOpened then |
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423 | Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite); |
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424 | Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning); |
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425 | streampos := Target.Position; |
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426 | Target.CopyFrom(Fdat_file, size); |
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427 | Target.Seek(streampos, soFromBeginning); |
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428 | if UnloadWhenUnused then |
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429 | begin |
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430 | FDatOpened := False; |
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431 | Fdat_file.Free; |
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432 | end |
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433 | else |
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434 | FDatOpened := True; |
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435 | end; |
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436 | end; |
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437 | |
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438 | procedure TAccess_OniArchive.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); |
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439 | begin |
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440 | if fileid < GetFileCount then |
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441 | begin |
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442 | if not FDatOpened then |
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443 | Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite); |
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444 | Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning); |
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445 | Fdat_file.CopyFrom(Src, Size); |
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446 | if UnloadWhenUnused then |
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447 | begin |
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448 | Fdat_file.Free; |
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449 | FDatOpened := False; |
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450 | end |
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451 | else |
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452 | FDatOpened := True; |
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453 | end; |
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454 | end; |
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455 | |
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456 | |
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457 | |
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458 | function TAccess_OniArchive.GetDatLink(FileID, DatOffset: Integer): TDatLink; |
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459 | var |
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460 | link: Integer; |
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461 | begin |
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462 | Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset); |
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463 | LoadDatFilePart(fileid, Result.SrcOffset, 4, @link); |
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464 | if link > 0 then |
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465 | Result.DestID := link div 256 |
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466 | else |
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467 | Result.DestID := -1; |
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468 | end; |
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469 | |
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470 | |
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471 | function TAccess_OniArchive.GetDatLinks(FileID: Integer): TDatLinkList; |
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472 | var |
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473 | i: Integer; |
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474 | link: Integer; |
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475 | begin |
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476 | Result := DatLinksManager.GetDatLinks(FConnectionID, FileID); |
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477 | if Length(Result) > 0 then |
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478 | begin |
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479 | for i := 0 to High(Result) do |
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480 | begin |
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481 | LoadDatFilePart(fileid, Result[i].SrcOffset, 4, @link); |
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482 | if link > 0 then |
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483 | Result[i].DestID := link div 256 |
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484 | else |
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485 | Result[i].DestID := -1; |
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486 | end; |
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487 | end; |
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488 | end; |
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489 | |
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490 | |
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491 | function TAccess_OniArchive.GetRawList(FileID: Integer): TRawDataList; |
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492 | begin |
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493 | Result := RawLists.GetRawList(FConnectionID, FileID); |
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494 | end; |
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495 | |
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496 | |
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497 | function TAccess_OniArchive.GetRawsForType(RawType: String): TRawDataList; |
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498 | var |
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499 | i, j: Integer; |
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500 | dats: TStrings; |
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501 | list: TRawDataList; |
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502 | begin |
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503 | dats := nil; |
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504 | dats := GetFilesList(MidStr(RawType, 1, 4), '', True, ST_IDAsc); |
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505 | for i := 0 to dats.Count - 1 do |
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506 | begin |
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507 | list := GetRawList(StrToInt(MidStr(dats.Strings[i], 1, 5))); |
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508 | for j := 0 to Length(list) - 1 do |
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509 | begin |
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510 | if (list[j].RawType = RawType) and (list[j].RawSize > 0) then |
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511 | begin |
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512 | SetLength(Result, Length(Result)+1); |
---|
513 | Result[High(Result)] := list[j]; |
---|
514 | end; |
---|
515 | end; |
---|
516 | end; |
---|
517 | end; |
---|
518 | |
---|
519 | |
---|
520 | function TAccess_OniArchive.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; |
---|
521 | begin |
---|
522 | Result := RawLists.GetRawInfo(FConnectionID, FileID, DatOffset); |
---|
523 | end; |
---|
524 | |
---|
525 | |
---|
526 | |
---|
527 | procedure TAccess_OniArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream); |
---|
528 | begin |
---|
529 | if not Assigned(Target) then |
---|
530 | Target := TMemoryStream.Create; |
---|
531 | if not LocSep then |
---|
532 | begin |
---|
533 | if not FRawOpened then |
---|
534 | Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'), |
---|
535 | fmOpenReadWrite); |
---|
536 | if RawAddr <= Fraw_file.Size then |
---|
537 | begin |
---|
538 | Fraw_file.Seek(RawAddr, soFromBeginning); |
---|
539 | Target.CopyFrom(Fraw_file, size); |
---|
540 | Target.Seek(0, soFromBeginning); |
---|
541 | end; |
---|
542 | if UnloadWhenUnused then |
---|
543 | begin |
---|
544 | FRawOpened := False; |
---|
545 | Fraw_file.Free; |
---|
546 | end |
---|
547 | else |
---|
548 | FRawOpened := True; |
---|
549 | end |
---|
550 | else |
---|
551 | begin |
---|
552 | if not FSepOpened then |
---|
553 | Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'), |
---|
554 | fmOpenReadWrite); |
---|
555 | if RawAddr <= Fsep_file.Size then |
---|
556 | begin |
---|
557 | Fsep_file.Seek(RawAddr, soFromBeginning); |
---|
558 | Target.CopyFrom(Fsep_file, size); |
---|
559 | Target.Seek(0, soFromBeginning); |
---|
560 | end; |
---|
561 | if UnloadWhenUnused then |
---|
562 | begin |
---|
563 | FSepOpened := False; |
---|
564 | Fsep_file.Free; |
---|
565 | end |
---|
566 | else |
---|
567 | FSepOpened := True; |
---|
568 | end; |
---|
569 | end; |
---|
570 | |
---|
571 | procedure TAccess_OniArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer); |
---|
572 | var |
---|
573 | data: TStream; |
---|
574 | begin |
---|
575 | data := nil; |
---|
576 | LoadRawOffset(LocSep, RawAddr, Size, data); |
---|
577 | data.Read(Target^, Size); |
---|
578 | data.Free; |
---|
579 | end; |
---|
580 | |
---|
581 | procedure TAccess_OniArchive.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); |
---|
582 | var |
---|
583 | raw_info: TRawDataInfo; |
---|
584 | streampos: Integer; |
---|
585 | begin |
---|
586 | if not Assigned(Target) then |
---|
587 | Target := TMemoryStream.Create; |
---|
588 | if fileid < GetFileCount then |
---|
589 | begin |
---|
590 | raw_info := Self.GetRawInfo(FileID, DatOffset); |
---|
591 | if not raw_info.LocSep then |
---|
592 | begin |
---|
593 | if not FRawOpened then |
---|
594 | Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'), |
---|
595 | fmOpenReadWrite); |
---|
596 | Fraw_file.Seek(raw_info.RawAddr, soFromBeginning); |
---|
597 | streampos := Target.Position; |
---|
598 | Target.CopyFrom(Fraw_file, raw_info.RawSize); |
---|
599 | Target.Seek(streampos, soFromBeginning); |
---|
600 | if UnloadWhenUnused then |
---|
601 | begin |
---|
602 | FRawOpened := False; |
---|
603 | Fraw_file.Free; |
---|
604 | end |
---|
605 | else |
---|
606 | FRawOpened := True; |
---|
607 | end |
---|
608 | else |
---|
609 | begin |
---|
610 | if FUnloadWhenUnused or not FSepOpened then |
---|
611 | Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'), |
---|
612 | fmOpenReadWrite); |
---|
613 | Fsep_file.Seek(raw_info.RawAddr, soFromBeginning); |
---|
614 | streampos := Target.Position; |
---|
615 | Target.CopyFrom(Fsep_file, raw_info.RawSize); |
---|
616 | Target.Seek(streampos, soFromBeginning); |
---|
617 | if UnloadWhenUnused then |
---|
618 | begin |
---|
619 | FSepOpened := False; |
---|
620 | Fsep_file.Free; |
---|
621 | end |
---|
622 | else |
---|
623 | FSepOpened := True; |
---|
624 | end; |
---|
625 | end; |
---|
626 | end; |
---|
627 | |
---|
628 | procedure TAccess_OniArchive.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); |
---|
629 | var |
---|
630 | raw_info: TRawDataInfo; |
---|
631 | begin |
---|
632 | if fileid < GetFileCount then |
---|
633 | begin |
---|
634 | raw_info := GetRawInfo(FileID, DatOffset); |
---|
635 | if not raw_info.LocSep then |
---|
636 | begin |
---|
637 | if not FRawOpened then |
---|
638 | Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'), |
---|
639 | fmOpenReadWrite); |
---|
640 | Fraw_file.Seek(raw_info.RawAddr, soFromBeginning); |
---|
641 | Fraw_file.CopyFrom(Src, Min(raw_info.RawSize, Src.Size)); |
---|
642 | if UnloadWhenUnused then |
---|
643 | begin |
---|
644 | FRawOpened := False; |
---|
645 | Fraw_file.Free; |
---|
646 | end |
---|
647 | else |
---|
648 | FRawOpened := True; |
---|
649 | end |
---|
650 | else |
---|
651 | begin |
---|
652 | if not FSepOpened then |
---|
653 | Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'), |
---|
654 | fmOpenReadWrite); |
---|
655 | Fsep_file.Seek(raw_info.RawAddr, soFromBeginning); |
---|
656 | Fsep_file.CopyFrom(Src, raw_info.RawSize); |
---|
657 | if UnloadWhenUnused then |
---|
658 | begin |
---|
659 | FSepOpened := False; |
---|
660 | Fsep_file.Free; |
---|
661 | end |
---|
662 | else |
---|
663 | FSepOpened := True; |
---|
664 | end; |
---|
665 | end; |
---|
666 | end; |
---|
667 | |
---|
668 | procedure TAccess_OniArchive.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); |
---|
669 | var |
---|
670 | Data: TStream; |
---|
671 | streampos: Integer; |
---|
672 | begin |
---|
673 | if not Assigned(Target) then |
---|
674 | Target := TMemoryStream.Create; |
---|
675 | if fileid < Self.GetFileCount then |
---|
676 | begin |
---|
677 | data := nil; |
---|
678 | LoadRawFile(FileID, DatOffset, Data); |
---|
679 | Data.Seek(Offset, soFromBeginning); |
---|
680 | streampos := Target.Position; |
---|
681 | Target.CopyFrom(Data, Size); |
---|
682 | Target.Seek(streampos, soFromBeginning); |
---|
683 | end; |
---|
684 | end; |
---|
685 | |
---|
686 | |
---|
687 | procedure TAccess_OniArchive.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); |
---|
688 | var |
---|
689 | raw_info: TRawDataInfo; |
---|
690 | begin |
---|
691 | if fileid < GetFileCount then |
---|
692 | begin |
---|
693 | raw_info := GetRawInfo(FileID, DatOffset); |
---|
694 | if not raw_info.LocSep then |
---|
695 | begin |
---|
696 | if not FRawOpened then |
---|
697 | Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'), |
---|
698 | fmOpenReadWrite); |
---|
699 | Fraw_file.Seek(raw_info.RawAddr + Offset, soFromBeginning); |
---|
700 | Fraw_file.CopyFrom(Src, Size); |
---|
701 | if UnloadWhenUnused then |
---|
702 | begin |
---|
703 | FRawOpened := False; |
---|
704 | Fraw_file.Free; |
---|
705 | end |
---|
706 | else |
---|
707 | FRawOpened := True; |
---|
708 | end |
---|
709 | else |
---|
710 | begin |
---|
711 | if not FSepOpened then |
---|
712 | Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'), |
---|
713 | fmOpenReadWrite); |
---|
714 | Fsep_file.Seek(raw_info.RawAddr + Offset, soFromBeginning); |
---|
715 | Fsep_file.CopyFrom(Src, Size); |
---|
716 | if UnloadWhenUnused then |
---|
717 | begin |
---|
718 | FSepOpened := False; |
---|
719 | Fsep_file.Free; |
---|
720 | end |
---|
721 | else |
---|
722 | FSepOpened := True; |
---|
723 | end; |
---|
724 | end; |
---|
725 | end; |
---|
726 | |
---|
727 | function TAccess_OniArchive.AppendRawFile(LocSep: Boolean; Src: TStream): Integer; |
---|
728 | const |
---|
729 | EmptyBytes: Array[0..31] of Byte = ( |
---|
730 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ); |
---|
731 | begin |
---|
732 | if not LocSep then |
---|
733 | begin |
---|
734 | if not FRawOpened then |
---|
735 | Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'), |
---|
736 | fmOpenReadWrite); |
---|
737 | if (Fraw_file.Size mod 32) > 0 then |
---|
738 | Fraw_file.Write(EmptyBytes[0], 32 - (Fraw_file.Size mod 32)); |
---|
739 | Result := Fraw_file.Size; |
---|
740 | Fraw_file.Seek(0, soFromEnd); |
---|
741 | Fraw_file.CopyFrom(Src, Src.Size); |
---|
742 | if (Fraw_file.Size mod 32) > 0 then |
---|
743 | Fraw_file.Write(EmptyBytes[0], 32 - (Fraw_file.Size mod 32)); |
---|
744 | if UnloadWhenUnused then |
---|
745 | begin |
---|
746 | FRawOpened := False; |
---|
747 | Fraw_file.Free; |
---|
748 | end |
---|
749 | else |
---|
750 | FRawOpened := True; |
---|
751 | end |
---|
752 | else |
---|
753 | begin |
---|
754 | if not FSepOpened then |
---|
755 | Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'), |
---|
756 | fmOpenReadWrite); |
---|
757 | if (Fsep_file.Size mod 32) > 0 then |
---|
758 | Fsep_file.Write(EmptyBytes[0], 32 - (Fsep_file.Size mod 32)); |
---|
759 | Result := Fsep_file.Size; |
---|
760 | Fsep_file.Seek(0, soFromEnd); |
---|
761 | Fsep_file.CopyFrom(Src, Src.Size); |
---|
762 | if (Fsep_file.Size mod 32) > 0 then |
---|
763 | Fsep_file.Write(EmptyBytes[0], 32 - (Fsep_file.Size mod 32)); |
---|
764 | if UnloadWhenUnused then |
---|
765 | begin |
---|
766 | FSepOpened := False; |
---|
767 | Fsep_file.Free; |
---|
768 | end |
---|
769 | else |
---|
770 | FSepOpened := True; |
---|
771 | end; |
---|
772 | end; |
---|
773 | |
---|
774 | end. |
---|