1 | unit Access_OniSplitArchive; |
---|
2 | interface |
---|
3 | |
---|
4 | uses DataAccess, Classes, TypeDefs; |
---|
5 | |
---|
6 | type |
---|
7 | TAccess_OniSplitArchive = class(TDataAccess) |
---|
8 | private |
---|
9 | Fdat_file: TFileStream; |
---|
10 | Fdat_files: TFiles; |
---|
11 | Fdat_extensionsmap: TExtensionsMap; |
---|
12 | FRawStart: Integer; |
---|
13 | protected |
---|
14 | public |
---|
15 | constructor Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); override; |
---|
16 | procedure Close; override; |
---|
17 | |
---|
18 | function GetFileInfo(FileID: Integer): TFileInfo; override; |
---|
19 | function GetFilesList(Ext: String; Pattern: String; |
---|
20 | NoEmptyFiles: Boolean; SortType: TSortType): TStrings; override; |
---|
21 | function GetFileCount: Integer; override; |
---|
22 | function GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; override; |
---|
23 | |
---|
24 | procedure LoadDatFile(FileID: Integer; var Target: TStream); overload; override; |
---|
25 | procedure UpdateDatFile(FileID: Integer; Src: TStream); overload; override; |
---|
26 | procedure LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); overload; override; |
---|
27 | procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; override; |
---|
28 | |
---|
29 | function GetDatLinks(FileID: Integer): TDatLinkList; override; |
---|
30 | function GetDatLink(FileID, DatOffset: Integer): TDatLink; override; |
---|
31 | function GetRawList(FileID: Integer): TRawDataList; override; |
---|
32 | function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; override; |
---|
33 | function GetRawsForType(RawType: String): TRawDataList; override; |
---|
34 | |
---|
35 | procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream); overload; |
---|
36 | procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer); overload; |
---|
37 | procedure LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); overload; override; |
---|
38 | procedure UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); overload; override; |
---|
39 | procedure LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); overload; override; |
---|
40 | procedure UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); overload; override; |
---|
41 | |
---|
42 | function AppendRawFile(LocSep: Boolean; Src: TStream): Integer; overload; override; |
---|
43 | published |
---|
44 | end; |
---|
45 | |
---|
46 | implementation |
---|
47 | |
---|
48 | uses |
---|
49 | SysUtils, StrUtils, Data, Functions, RawList, DatLinks, Math; |
---|
50 | |
---|
51 | |
---|
52 | (* |
---|
53 | ================================================================================ |
---|
54 | Implementation of TOniDataDat |
---|
55 | *) |
---|
56 | |
---|
57 | |
---|
58 | constructor TAccess_OniSplitArchive.Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); |
---|
59 | var |
---|
60 | i: Integer; |
---|
61 | header_pc, header_mac, header_macbeta: Boolean; |
---|
62 | Fdat_header: THeader; |
---|
63 | Fdat_filesmap: TFilesMap; |
---|
64 | Fdat_namedfilesmap: TNamedFilesMap; |
---|
65 | const |
---|
66 | HeaderGlobalIdent: TDatGlobalIdent = ($DF, $BC, $03, $00, $32, $33, $52, $56, |
---|
67 | $40, $00, $14, $00, $10, $00, $08, $00); |
---|
68 | begin |
---|
69 | Msg := SM_UnknownError; |
---|
70 | if not FileExists(DatFilename) then |
---|
71 | begin |
---|
72 | Msg := SM_FileNotFound; |
---|
73 | Exit; |
---|
74 | end; |
---|
75 | FFileName := DatFilename; |
---|
76 | Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite); |
---|
77 | Fdat_file.Read(Fdat_header, SizeOf(Fdat_header)); |
---|
78 | header_pc := True; |
---|
79 | header_mac := True; |
---|
80 | header_macbeta := True; |
---|
81 | for i := 0 to High(Fdat_header.GlobalIdent) do |
---|
82 | if Fdat_header.GlobalIdent[i] <> HeaderGlobalIdent[i] then |
---|
83 | begin |
---|
84 | Msg := SM_IncompatibleFile; |
---|
85 | Exit; |
---|
86 | end; |
---|
87 | |
---|
88 | for i := 0 to High(Fdat_header.OSIdent) do |
---|
89 | begin |
---|
90 | if Fdat_header.OSIdent[i] <> HeaderOSIdentWin[i] then |
---|
91 | header_pc := False; |
---|
92 | if Fdat_header.OSIdent[i] <> HeaderOSIdentMac[i] then |
---|
93 | header_mac := False; |
---|
94 | if Fdat_header.OSIdent[i] <> HeaderOSIdentMacBeta[i] then |
---|
95 | header_macbeta := False; |
---|
96 | end; |
---|
97 | if not (header_pc xor header_mac xor header_macbeta) then |
---|
98 | begin |
---|
99 | Msg := SM_IncompatibleFile; |
---|
100 | Exit; |
---|
101 | end |
---|
102 | else |
---|
103 | begin |
---|
104 | if (header_pc and not header_mac and not header_macbeta) then |
---|
105 | FDataOS := DOS_WIN |
---|
106 | else if (not header_pc and header_mac and not header_macbeta) then |
---|
107 | FDataOS := DOS_MAC |
---|
108 | else if (not header_pc and not header_mac and header_macbeta) then |
---|
109 | FDataOS := DOS_MACBETA; |
---|
110 | end; |
---|
111 | SetLength(Fdat_filesmap, Fdat_header.Files); |
---|
112 | SetLength(Fdat_files, Fdat_header.Files); |
---|
113 | for i := 0 to Fdat_header.Files - 1 do |
---|
114 | Fdat_file.Read(Fdat_filesmap[i], SizeOf(Fdat_filesmap[i])); |
---|
115 | for i := 0 to Fdat_header.Files - 1 do |
---|
116 | begin |
---|
117 | Fdat_files[i].ID := i; |
---|
118 | Fdat_files[i].Extension := Fdat_filesmap[i].Extension; |
---|
119 | Fdat_files[i].Extension := ReverseString(Fdat_files[i].Extension); |
---|
120 | Fdat_files[i].Size := Fdat_filesmap[i].FileSize; |
---|
121 | Fdat_files[i].FileType := Fdat_filesmap[i].FileType; |
---|
122 | Fdat_files[i].DatAddr := Fdat_filesmap[i].DataAddr - 8 + Fdat_header.DataAddr; |
---|
123 | if (Fdat_filesmap[i].FileType and $01) = 0 then |
---|
124 | begin |
---|
125 | Fdat_file.Seek(Fdat_filesmap[i].NameAddr + Fdat_header.NamesAddr, soFromBeginning); |
---|
126 | SetLength(Fdat_files[i].Name, 100); |
---|
127 | Fdat_file.Read(Fdat_files[i].Name[1], 100); |
---|
128 | Fdat_files[i].Name := MidStr(Fdat_files[i].Name, 1 + 4, Pos( |
---|
129 | #0, Fdat_files[i].Name) - 1 - 4); |
---|
130 | end |
---|
131 | else |
---|
132 | begin |
---|
133 | Fdat_files[i].Name := ''; |
---|
134 | end; |
---|
135 | end; |
---|
136 | Fdat_file.Seek($40 + Fdat_header.Files * $14, soFromBeginning); |
---|
137 | SetLength(Fdat_namedfilesmap, Fdat_header.NamedFiles); |
---|
138 | for i := 0 to Fdat_header.NamedFiles - 1 do |
---|
139 | Fdat_file.Read(Fdat_namedfilesmap[i], SizeOf(Fdat_namedfilesmap[i])); |
---|
140 | |
---|
141 | Fdat_file.Seek($40 + Fdat_header.Files * $14 + Fdat_header.NamedFiles * $8, soFromBeginning); |
---|
142 | SetLength(Fdat_extensionsmap, Fdat_header.Extensions); |
---|
143 | for i := 0 to Fdat_header.Extensions - 1 do |
---|
144 | Fdat_file.Read(Fdat_extensionsmap[i], SizeOf(Fdat_extensionsmap[i])); |
---|
145 | |
---|
146 | Fdat_file.Seek(Fdat_files[0].DatAddr + 7, soFromBeginning); |
---|
147 | Fdat_file.Read(FLevelNumber, 1); |
---|
148 | FLevelNumber := FLevelNumber div 2; |
---|
149 | |
---|
150 | with Fdat_header do |
---|
151 | FRawStart := Ident2[0] + Ident2[1]*256 + Ident2[2]*256*256 + Ident2[3]*256*256*256; |
---|
152 | |
---|
153 | Msg := SM_OK; |
---|
154 | FBackend := DB_ONISPLIT; |
---|
155 | FConnectionID := ConnectionID; |
---|
156 | FChangeRights := [CR_EditDat, CR_EditRaw, CR_AppendRaw]; |
---|
157 | |
---|
158 | inherited; |
---|
159 | end; |
---|
160 | |
---|
161 | |
---|
162 | |
---|
163 | |
---|
164 | procedure TAccess_OniSplitArchive.Close; |
---|
165 | begin |
---|
166 | if Assigned(Fdat_file) then |
---|
167 | Fdat_file.Free; |
---|
168 | Self.Free; |
---|
169 | end; |
---|
170 | |
---|
171 | |
---|
172 | |
---|
173 | |
---|
174 | function TAccess_OniSplitArchive.GetFileInfo(fileid: Integer): TFileInfo; |
---|
175 | begin |
---|
176 | if fileid = -1 then |
---|
177 | begin |
---|
178 | Result := inherited GetFileInfo(fileid); |
---|
179 | Exit; |
---|
180 | end; |
---|
181 | if fileid < Self.GetFileCount then |
---|
182 | Result := Fdat_files[fileid] |
---|
183 | else |
---|
184 | Result.ID := -1; |
---|
185 | end; |
---|
186 | |
---|
187 | |
---|
188 | |
---|
189 | |
---|
190 | function TAccess_OniSplitArchive.GetFilesList(ext: String; pattern: String; |
---|
191 | NoEmptyFiles: Boolean; SortType: TSortType): TStrings; |
---|
192 | var |
---|
193 | i: Integer; |
---|
194 | list: TStringList; |
---|
195 | id, name, extension: String; |
---|
196 | fields: TStrings; |
---|
197 | |
---|
198 | procedure getfields; |
---|
199 | begin |
---|
200 | fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]); |
---|
201 | if SortType in [ST_IDAsc, ST_IDDesc] then |
---|
202 | begin |
---|
203 | id := fields.Strings[0]; |
---|
204 | name := fields.Strings[1]; |
---|
205 | extension := fields.Strings[2]; |
---|
206 | end; |
---|
207 | if SortType in [ST_NameAsc, ST_NameDesc] then |
---|
208 | begin |
---|
209 | id := fields.Strings[1]; |
---|
210 | name := fields.Strings[0]; |
---|
211 | extension := fields.Strings[2]; |
---|
212 | end; |
---|
213 | if SortType in [ST_ExtAsc, ST_ExtDesc] then |
---|
214 | begin |
---|
215 | id := fields.Strings[1]; |
---|
216 | name := fields.Strings[2]; |
---|
217 | extension := fields.Strings[0]; |
---|
218 | end; |
---|
219 | if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then |
---|
220 | begin |
---|
221 | id := fields.Strings[2]; |
---|
222 | name := fields.Strings[1]; |
---|
223 | extension := fields.Strings[0]; |
---|
224 | end; |
---|
225 | end; |
---|
226 | |
---|
227 | begin |
---|
228 | list := TStringList.Create; |
---|
229 | list.Sorted := True; |
---|
230 | if ext = '*' then |
---|
231 | ext := ''; |
---|
232 | for i := 0 to GetFileCount - 1 do |
---|
233 | begin |
---|
234 | if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and |
---|
235 | ((Length(pattern) = 0) or |
---|
236 | (Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then |
---|
237 | begin |
---|
238 | if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then |
---|
239 | begin |
---|
240 | id := FormatNumber(Fdat_files[i].ID, 5, '0'); |
---|
241 | name := Fdat_files[i].Name; |
---|
242 | extension := Fdat_files[i].Extension; |
---|
243 | |
---|
244 | case SortType of |
---|
245 | ST_IDAsc, ST_IDDesc: list.Add(id + ';' + name + ';' + extension); |
---|
246 | ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension); |
---|
247 | ST_ExtAsc, ST_ExtDesc: list.Add(extension + ';' + id + ';' + name); |
---|
248 | ST_ExtNameAsc, ST_ExtNameDesc: list.Add(name + ';' + extension + ';' + id); |
---|
249 | end; |
---|
250 | end; |
---|
251 | end; |
---|
252 | end; |
---|
253 | if not Assigned(Result) then |
---|
254 | Result := TStringList.Create; |
---|
255 | if list.Count > 0 then |
---|
256 | begin |
---|
257 | fields := TStringList.Create; |
---|
258 | if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then |
---|
259 | for i := 0 to list.Count - 1 do |
---|
260 | begin |
---|
261 | getfields; |
---|
262 | Result.Add(id + '-' + name + '.' + extension); |
---|
263 | end |
---|
264 | else |
---|
265 | for i := list.Count - 1 downto 0 do |
---|
266 | begin |
---|
267 | getfields; |
---|
268 | Result.Add(id + '-' + name + '.' + extension); |
---|
269 | end; |
---|
270 | fields.Free; |
---|
271 | end; |
---|
272 | list.Free; |
---|
273 | end; |
---|
274 | |
---|
275 | |
---|
276 | |
---|
277 | |
---|
278 | function TAccess_OniSplitArchive.GetFileCount: Integer; |
---|
279 | begin |
---|
280 | Result := Length(Fdat_files); |
---|
281 | end; |
---|
282 | |
---|
283 | |
---|
284 | |
---|
285 | |
---|
286 | function TAccess_OniSplitArchive.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; |
---|
287 | var |
---|
288 | i: Integer; |
---|
289 | begin |
---|
290 | if not Assigned(Result) then |
---|
291 | Result := TStringList.Create; |
---|
292 | if Result is TStringList then |
---|
293 | TStringList(Result).Sorted := True; |
---|
294 | for i := 0 to Length(Fdat_extensionsmap) - 1 do |
---|
295 | begin |
---|
296 | with Fdat_extensionsmap[i] do |
---|
297 | begin |
---|
298 | case ExtListFormat of |
---|
299 | EF_ExtOnly: |
---|
300 | Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]); |
---|
301 | EF_ExtCount: |
---|
302 | Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] + |
---|
303 | ' (' + IntToStr(ExtCount) + ')'); |
---|
304 | end; |
---|
305 | end; |
---|
306 | end; |
---|
307 | end; |
---|
308 | |
---|
309 | |
---|
310 | |
---|
311 | procedure TAccess_OniSplitArchive.LoadDatFile(FileID: Integer; var Target: TStream); |
---|
312 | var |
---|
313 | streampos: Integer; |
---|
314 | begin |
---|
315 | if fileid < GetFileCount then |
---|
316 | begin |
---|
317 | if not Assigned(Target) then |
---|
318 | Target := TMemoryStream.Create; |
---|
319 | if GetFileInfo(FileID).Size > 0 then |
---|
320 | begin |
---|
321 | Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning); |
---|
322 | streampos := Target.Position; |
---|
323 | Target.CopyFrom(Fdat_file, Fdat_files[fileid].Size); |
---|
324 | Target.Seek(streampos, soFromBeginning); |
---|
325 | end; |
---|
326 | end; |
---|
327 | end; |
---|
328 | |
---|
329 | procedure TAccess_OniSplitArchive.UpdateDatFile(FileID: Integer; Src: TStream); |
---|
330 | begin |
---|
331 | if fileid < GetFileCount then |
---|
332 | begin |
---|
333 | Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning); |
---|
334 | Fdat_file.CopyFrom(Src, Fdat_files[fileid].Size); |
---|
335 | end; |
---|
336 | end; |
---|
337 | |
---|
338 | procedure TAccess_OniSplitArchive.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); |
---|
339 | var |
---|
340 | streampos: Integer; |
---|
341 | begin |
---|
342 | if fileid < GetFileCount then |
---|
343 | begin |
---|
344 | if not Assigned(Target) then |
---|
345 | Target := TMemoryStream.Create; |
---|
346 | Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning); |
---|
347 | streampos := Target.Position; |
---|
348 | Target.CopyFrom(Fdat_file, size); |
---|
349 | Target.Seek(streampos, soFromBeginning); |
---|
350 | end; |
---|
351 | end; |
---|
352 | |
---|
353 | procedure TAccess_OniSplitArchive.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); |
---|
354 | begin |
---|
355 | if fileid < GetFileCount then |
---|
356 | begin |
---|
357 | Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning); |
---|
358 | Fdat_file.CopyFrom(Src, Size); |
---|
359 | end; |
---|
360 | end; |
---|
361 | |
---|
362 | |
---|
363 | |
---|
364 | function TAccess_OniSplitArchive.GetDatLink(FileID, DatOffset: Integer): TDatLink; |
---|
365 | var |
---|
366 | link: Integer; |
---|
367 | begin |
---|
368 | Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset); |
---|
369 | LoadDatFilePart(fileid, Result.SrcOffset, 4, @link); |
---|
370 | if link > 0 then |
---|
371 | Result.DestID := link div 256 |
---|
372 | else |
---|
373 | Result.DestID := -1; |
---|
374 | end; |
---|
375 | |
---|
376 | |
---|
377 | function TAccess_OniSplitArchive.GetDatLinks(FileID: Integer): TDatLinkList; |
---|
378 | var |
---|
379 | i: Integer; |
---|
380 | link: Integer; |
---|
381 | begin |
---|
382 | Result := DatLinksManager.GetDatLinks(FConnectionID, FileID); |
---|
383 | if Length(Result) > 0 then |
---|
384 | begin |
---|
385 | for i := 0 to High(Result) do |
---|
386 | begin |
---|
387 | LoadDatFilePart(fileid, Result[i].SrcOffset, 4, @link); |
---|
388 | if link > 0 then |
---|
389 | Result[i].DestID := link div 256 |
---|
390 | else |
---|
391 | Result[i].DestID := -1; |
---|
392 | end; |
---|
393 | end; |
---|
394 | end; |
---|
395 | |
---|
396 | |
---|
397 | function TAccess_OniSplitArchive.GetRawList(FileID: Integer): TRawDataList; |
---|
398 | begin |
---|
399 | Result := RawLists.GetRawList(FConnectionID, FileID); |
---|
400 | end; |
---|
401 | |
---|
402 | |
---|
403 | function TAccess_OniSplitArchive.GetRawsForType(RawType: String): TRawDataList; |
---|
404 | var |
---|
405 | i, j: Integer; |
---|
406 | dats: TStrings; |
---|
407 | list: TRawDataList; |
---|
408 | begin |
---|
409 | dats := nil; |
---|
410 | dats := GetFilesList(MidStr(RawType, 1, 4), '', True, ST_IDAsc); |
---|
411 | for i := 0 to dats.Count - 1 do |
---|
412 | begin |
---|
413 | list := GetRawList(StrToInt(MidStr(dats.Strings[i], 1, 5))); |
---|
414 | for j := 0 to Length(list) - 1 do |
---|
415 | begin |
---|
416 | if (list[j].RawType = RawType) and (list[j].RawSize > 0) then |
---|
417 | begin |
---|
418 | SetLength(Result, Length(Result)+1); |
---|
419 | Result[High(Result)] := list[j]; |
---|
420 | end; |
---|
421 | end; |
---|
422 | end; |
---|
423 | end; |
---|
424 | |
---|
425 | |
---|
426 | function TAccess_OniSplitArchive.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; |
---|
427 | begin |
---|
428 | Result := RawLists.GetRawInfo(FConnectionID, FileID, DatOffset); |
---|
429 | end; |
---|
430 | |
---|
431 | |
---|
432 | |
---|
433 | procedure TAccess_OniSplitArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream); |
---|
434 | begin |
---|
435 | if not Assigned(Target) then |
---|
436 | Target := TMemoryStream.Create; |
---|
437 | if FRawStart + RawAddr <= Fdat_file.Size then |
---|
438 | begin |
---|
439 | Fdat_file.Seek(FRawStart + RawAddr, soFromBeginning); |
---|
440 | Target.CopyFrom(Fdat_file, size); |
---|
441 | Target.Seek(0, soFromBeginning); |
---|
442 | end; |
---|
443 | end; |
---|
444 | |
---|
445 | procedure TAccess_OniSplitArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer); |
---|
446 | var |
---|
447 | data: TStream; |
---|
448 | begin |
---|
449 | data := nil; |
---|
450 | LoadRawOffset(LocSep, RawAddr, Size, data); |
---|
451 | data.Read(Target^, Size); |
---|
452 | data.Free; |
---|
453 | end; |
---|
454 | |
---|
455 | procedure TAccess_OniSplitArchive.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); |
---|
456 | var |
---|
457 | raw_info: TRawDataInfo; |
---|
458 | streampos: Integer; |
---|
459 | begin |
---|
460 | if not Assigned(Target) then |
---|
461 | Target := TMemoryStream.Create; |
---|
462 | if fileid < GetFileCount then |
---|
463 | begin |
---|
464 | raw_info := Self.GetRawInfo(FileID, DatOffset); |
---|
465 | |
---|
466 | Fdat_file.Seek(FRawStart + raw_info.RawAddr, soFromBeginning); |
---|
467 | streampos := Target.Position; |
---|
468 | Target.CopyFrom(Fdat_file, raw_info.RawSize); |
---|
469 | Target.Seek(streampos, soFromBeginning); |
---|
470 | end; |
---|
471 | end; |
---|
472 | |
---|
473 | procedure TAccess_OniSplitArchive.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); |
---|
474 | var |
---|
475 | raw_info: TRawDataInfo; |
---|
476 | begin |
---|
477 | if fileid < GetFileCount then |
---|
478 | begin |
---|
479 | raw_info := GetRawInfo(FileID, DatOffset); |
---|
480 | |
---|
481 | Fdat_file.Seek(FRawStart + raw_info.RawAddr, soFromBeginning); |
---|
482 | Fdat_file.CopyFrom(Src, Min(raw_info.RawSize, Src.Size)); |
---|
483 | end; |
---|
484 | end; |
---|
485 | |
---|
486 | procedure TAccess_OniSplitArchive.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); |
---|
487 | var |
---|
488 | Data: TStream; |
---|
489 | streampos: Integer; |
---|
490 | begin |
---|
491 | if not Assigned(Target) then |
---|
492 | Target := TMemoryStream.Create; |
---|
493 | if fileid < Self.GetFileCount then |
---|
494 | begin |
---|
495 | data := nil; |
---|
496 | LoadRawFile(FileID, DatOffset, Data); |
---|
497 | Data.Seek(Offset, soFromBeginning); |
---|
498 | streampos := Target.Position; |
---|
499 | Target.CopyFrom(Data, Size); |
---|
500 | Target.Seek(streampos, soFromBeginning); |
---|
501 | end; |
---|
502 | end; |
---|
503 | |
---|
504 | |
---|
505 | procedure TAccess_OniSplitArchive.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); |
---|
506 | var |
---|
507 | raw_info: TRawDataInfo; |
---|
508 | begin |
---|
509 | if fileid < GetFileCount then |
---|
510 | begin |
---|
511 | raw_info := GetRawInfo(FileID, DatOffset); |
---|
512 | |
---|
513 | Fdat_file.Seek(FRawStart + raw_info.RawAddr + Offset, soFromBeginning); |
---|
514 | Fdat_file.CopyFrom(Src, Size); |
---|
515 | end; |
---|
516 | end; |
---|
517 | |
---|
518 | function TAccess_OniSplitArchive.AppendRawFile(LocSep: Boolean; Src: TStream): Integer; |
---|
519 | const |
---|
520 | EmptyBytes: Array[0..31] of Byte = ( |
---|
521 | 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 ); |
---|
522 | begin |
---|
523 | if (Fdat_file.Size mod 32) > 0 then |
---|
524 | Fdat_file.Write(EmptyBytes[0], 32 - (Fdat_file.Size mod 32)); |
---|
525 | Result := Fdat_file.Size - FRawStart; |
---|
526 | Fdat_file.Seek(0, soFromEnd); |
---|
527 | Fdat_file.CopyFrom(Src, Src.Size); |
---|
528 | if (Fdat_file.Size mod 32) > 0 then |
---|
529 | Fdat_file.Write(EmptyBytes[0], 32 - (Fdat_file.Size mod 32)); |
---|
530 | end; |
---|
531 | |
---|
532 | end. |
---|