current/DataAccess/Access_OniArchive.pas

unit Access_OniArchive;
interface

uses DataAccess, Classes, TypeDefs;

type
  TAccess_OniArchive = class(TDataAccess)
  private
    Fdat_file:           TFileStream;
    Fraw_file:           TFileStream;
    Fsep_file:           TFileStream;
    Fdat_files:          TFiles;
    Fdat_extensionsmap:  TExtensionsMap;
    FUnloadWhenUnused:   Boolean;
    FDatOpened:          Boolean;
    FRawOpened:          Boolean;
    FSepOpened:          Boolean;
    procedure SetUnloadWhenUnused(doit: Boolean);
  protected
  public
    property UnloadWhenUnused: Boolean Read FUnloadWhenUnused Write SetUnloadWhenUnused;

    constructor Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); override;
    procedure Close; override;

    function GetFileInfo(FileID: Integer): TFileInfo; override;
    function GetFilesList(Ext: String; Pattern: String;
      NoEmptyFiles: Boolean; SortType: TSortType): TStrings; override;
    function GetFileCount: Integer; override;
    function GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; override;

    procedure LoadDatFile(FileID: Integer; var Target: TStream); overload; override;
    procedure UpdateDatFile(FileID: Integer; Src: TStream); overload; override;
    procedure LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); overload; override;
    procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; override;

    function GetDatLinks(FileID: Integer): TDatLinkList; override;
    function GetDatLink(FileID, DatOffset: Integer): TDatLink; override;
    function GetRawList(FileID: Integer): TRawDataList; override;
    function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; override;

    procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream); overload;
    procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer); overload;
    procedure LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); overload; override;
    procedure UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); overload; override;
    procedure LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); overload; override;
    procedure UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); overload; override;

    function AppendRawFile(LocSep: Boolean; Src: TStream): Integer; overload; override;
  published
  end;

implementation

uses
  SysUtils, StrUtils, Data, Functions, RawList, DatLinks, Math;


(*
================================================================================
                      Implementation of  TOniDataDat
*)


constructor TAccess_OniArchive.Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages);
var
  i: Integer;
  header_pc, header_mac, header_macbeta: Boolean;
  Fdat_header:   THeader;
  Fdat_filesmap: TFilesMap;
  Fdat_namedfilesmap: TNamedFilesMap;
begin
  FUnloadWhenUnused := True;
  FDatOpened := False;
  FRawOpened := False;
  Msg := SM_UnknownError;
  if not FileExists(DatFilename) then
  begin
    Msg := SM_FileNotFound;
    Exit;
  end;
  FFileName := DatFilename;
  Fdat_file := TFileStream.Create(FFileName, fmOpenRead);
  Fdat_file.Read(Fdat_header, SizeOf(Fdat_header));
  header_pc  := True;
  header_mac := True;
  header_macbeta := True;
  for i := 0 to High(Fdat_header.GlobalIdent) do
    if Fdat_header.GlobalIdent[i] <> HeaderGlobalIdent[i] then
    begin
      Msg := SM_IncompatibleFile;
      Exit;
    end;

  for i := 0 to High(Fdat_header.OSIdent) do
  begin
    if Fdat_header.OSIdent[i] <> HeaderOSIdentWin[i] then
      header_pc := False;
    if Fdat_header.OSIdent[i] <> HeaderOSIdentMac[i] then
      header_mac := False;
    if Fdat_header.OSIdent[i] <> HeaderOSIdentMacBeta[i] then
      header_macbeta := False;
  end;
  if not (header_pc xor header_mac xor header_macbeta) then
  begin
    Msg := SM_IncompatibleFile;
    Exit;
  end
  else
  begin
    if (header_pc and not header_mac and not header_macbeta) then
      FDataOS := DOS_WIN
    else if (not header_pc and header_mac and not header_macbeta) then
      FDataOS := DOS_MAC
    else if (not header_pc and not header_mac and header_macbeta) then
      FDataOS := DOS_MACBETA;
  end;
  SetLength(Fdat_filesmap, Fdat_header.Files);
  SetLength(Fdat_files, Fdat_header.Files);
  for i := 0 to Fdat_header.Files - 1 do
    Fdat_file.Read(Fdat_filesmap[i], SizeOf(Fdat_filesmap[i]));
  for i := 0 to Fdat_header.Files - 1 do
  begin
    Fdat_files[i].ID := i;
    Fdat_files[i].Extension := Fdat_filesmap[i].Extension;
    Fdat_files[i].Extension := ReverseString(Fdat_files[i].Extension);
    Fdat_files[i].Size      := Fdat_filesmap[i].FileSize;
    Fdat_files[i].FileType  := Fdat_filesmap[i].FileType;
    Fdat_files[i].DatAddr   := Fdat_filesmap[i].DataAddr - 8 + Fdat_header.DataAddr;
    if (Fdat_filesmap[i].FileType and $01) = 0 then
    begin
      Fdat_file.Seek(Fdat_filesmap[i].NameAddr + Fdat_header.NamesAddr, soFromBeginning);
      SetLength(Fdat_files[i].Name, 100);
      Fdat_file.Read(Fdat_files[i].Name[1], 100);
      Fdat_files[i].Name := MidStr(Fdat_files[i].Name, 1 + 4, Pos(
        #0, Fdat_files[i].Name) - 1 - 4);
    end
    else
    begin
      Fdat_files[i].Name := '';
    end;
  end;
  Fdat_file.Seek($40 + Fdat_header.Files * $14, soFromBeginning);
  SetLength(Fdat_namedfilesmap, Fdat_header.NamedFiles);
  for i := 0 to Fdat_header.NamedFiles - 1 do
    Fdat_file.Read(Fdat_namedfilesmap[i], SizeOf(Fdat_namedfilesmap[i]));

  Fdat_file.Seek($40 + Fdat_header.Files * $14 + Fdat_header.NamedFiles * $8, soFromBeginning);
  SetLength(Fdat_extensionsmap, Fdat_header.Extensions);
  for i := 0 to Fdat_header.Extensions - 1 do
    Fdat_file.Read(Fdat_extensionsmap[i], SizeOf(Fdat_extensionsmap[i]));

  Fdat_file.Seek(Fdat_files[0].DatAddr + 7, soFromBeginning);
  Fdat_file.Read(FLevelNumber, 1);
  FLevelNumber := FLevelNumber div 2;

  Fdat_file.Free;

  Msg := SM_OK;
  FBackend := DB_ONI;
  FConnectionID := ConnectionID;
  FChangeRights := [CR_EditDat, CR_EditRaw, CR_AppendRaw];
end;


procedure TAccess_OniArchive.SetUnloadWhenUnused(doit: Boolean);
begin
  FUnloadWhenUnused := doit;
  if FUnloadWhenUnused then
  begin
    if FDatOpened then
    begin
      FDatOpened := False;
      Fdat_file.Free;
    end;
    if FRawOpened then
    begin
      FRawOpened := False;
      Fraw_file.Free;
    end;
    if FSepOpened then
    begin
      FSepOpened := False;
      Fsep_file.Free;
    end;
  end
  else
  begin
    if not FDatOpened then
    begin
      Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
      FDatOpened := True;
    end;
    if not FRawOpened then
    begin
      Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
        fmOpenReadWrite);
      FRawOpened := True;
    end;
    if (not FSepOpened) and (FDataOS <> DOS_WIN) then
    begin
      Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
        fmOpenReadWrite);
      FSepOpened := True;
    end;
  end;
end;


procedure TAccess_OniArchive.Close;
begin
  if FDatOpened then
    Fdat_file.Free;
  if FRawOpened then
    Fraw_file.Free;
  if FSepOpened then
    Fsep_file.Free;
  Self.Free;
end;


function TAccess_OniArchive.GetFileInfo(fileid: Integer): TFileInfo;
begin
  if fileid = -1 then
  begin
    Result := inherited GetFileInfo(fileid);
    Exit;
  end;
  if fileid < Self.GetFileCount then
    Result    := Fdat_files[fileid]
  else
    Result.ID := -1;
end;


function TAccess_OniArchive.GetFilesList(ext: String; pattern: String;
  NoEmptyFiles: Boolean; SortType: TSortType): TStrings;
var
  i:      Integer;
  list:   TStringList;
  id, name, extension: String;
  fields: TStrings;

  procedure getfields;
  begin
    fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]);
    if SortType in [ST_IDAsc, ST_IDDesc] then
    begin
      id := fields.Strings[0];
      name := fields.Strings[1];
      extension := fields.Strings[2];
    end;
    if SortType in [ST_NameAsc, ST_NameDesc] then
    begin
      id := fields.Strings[1];
      name := fields.Strings[0];
      extension := fields.Strings[2];
    end;
    if SortType in [ST_ExtAsc, ST_ExtDesc] then
    begin
      id := fields.Strings[1];
      name := fields.Strings[2];
      extension := fields.Strings[0];
    end;
    if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
    begin
      id := fields.Strings[2];
      name := fields.Strings[1];
      extension := fields.Strings[0];
    end;
  end;

begin
  list := TStringList.Create;
  list.Sorted := True;
  for i := 0 to GetFileCount - 1 do
  begin
    if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and
      ((Length(pattern) = 0) or
      (Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then
    begin
      if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then
      begin
        id := FormatNumber(Fdat_files[i].ID, 5, '0');
        name := Fdat_files[i].Name;
        extension := Fdat_files[i].Extension;

        case SortType of
          ST_IDAsc, ST_IDDesc:     list.Add(id + ';' + name + ';' + extension);
          ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension);
          ST_ExtAsc, ST_ExtDesc:   list.Add(extension + ';' + id + ';' + name);
          ST_ExtNameAsc, ST_ExtNameDesc: list.Add(name + ';' + extension + ';' + id);
        end;
      end;
    end;
  end;
  if not Assigned(Result) then
    Result := TStringList.Create;
  if list.Count > 0 then
  begin
    fields := TStringList.Create;
    if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then
      for i := 0 to list.Count - 1 do
      begin
        getfields;
        Result.Add(id + '-' + name + '.' + extension);
      end
    else
      for i := list.Count - 1 downto 0 do
      begin
        getfields;
        Result.Add(id + '-' + name + '.' + extension);
      end;
    fields.Free;
  end;
  list.Free;
end;


function TAccess_OniArchive.GetFileCount: Integer;
begin
  Result := Length(Fdat_files);
end;


function TAccess_OniArchive.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings;
var
  i: Integer;
begin
  if not Assigned(Result) then
    Result := TStringList.Create;
  if Result is TStringList then
    TStringList(Result).Sorted := True;
  for i := 0 to Length(Fdat_extensionsmap) - 1 do
  begin
    with Fdat_extensionsmap[i] do
    begin
      case ExtListFormat of
        EF_ExtOnly:
          Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]);
        EF_ExtCount:
          Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] +
                ' (' + IntToStr(ExtCount) + ')');
      end;
    end;
  end;
end;


procedure TAccess_OniArchive.LoadDatFile(FileID: Integer; var Target: TStream);
var
  streampos: Integer;
begin
  if fileid < GetFileCount then
  begin
    if not Assigned(Target) then
      Target := TMemoryStream.Create;
    if not FDatOpened then
      Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
    Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning);
    streampos := Target.Position;
    Target.CopyFrom(Fdat_file, Fdat_files[fileid].Size);
    Target.Seek(streampos, soFromBeginning);
    if UnloadWhenUnused then
    begin
      Fdat_file.Free;
      FDatOpened := False;
    end
    else
      FDatOpened := True;
  end;
end;

procedure TAccess_OniArchive.UpdateDatFile(FileID: Integer; Src: TStream);
begin
  if fileid < GetFileCount then
  begin
    if not FDatOpened then
      Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
    Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning);
    Fdat_file.CopyFrom(Src, Fdat_files[fileid].Size);
    if UnloadWhenUnused then
    begin
      Fdat_file.Free;
      FDatOpened := False;
    end
    else
      FDatOpened := True;
  end;
end;

procedure TAccess_OniArchive.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream);
var
  streampos: Integer;
begin
  if fileid < GetFileCount then
  begin
    if not Assigned(Target) then
      Target := TMemoryStream.Create;
    if not FDatOpened then
      Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
    Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning);
    streampos := Target.Position;
    Target.CopyFrom(Fdat_file, size);
    Target.Seek(streampos, soFromBeginning);
    if UnloadWhenUnused then
    begin
      FDatOpened := False;
      Fdat_file.Free;
    end
    else
      FDatOpened := True;
  end;
end;

procedure TAccess_OniArchive.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream);
begin
  if fileid < GetFileCount then
  begin
    if not FDatOpened then
      Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
    Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning);
    Fdat_file.CopyFrom(Src, Size);
    if UnloadWhenUnused then
    begin
      Fdat_file.Free;
      FDatOpened := False;
    end
    else
      FDatOpened := True;
  end;
end;


function TAccess_OniArchive.GetDatLink(FileID, DatOffset: Integer): TDatLink;
var
  link: Integer;
begin
  Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset);
  LoadDatFilePart(fileid, Result.SrcOffset, 4, @link);
  if link > 0 then
    Result.DestID := link div 256
  else
    Result.DestID := -1;
end;


function TAccess_OniArchive.GetDatLinks(FileID: Integer): TDatLinkList;
var
  i: Integer;
  link: Integer;
begin
  Result := DatLinksManager.GetDatLinks(FConnectionID, FileID);
  if Length(Result) > 0 then
  begin
    for i := 0 to High(Result) do
    begin
      LoadDatFilePart(fileid, Result[i].SrcOffset, 4, @link);
      if link > 0 then
        Result[i].DestID := link div 256
      else
        Result[i].DestID := -1;
    end;
  end;
end;


function TAccess_OniArchive.GetRawList(FileID: Integer): TRawDataList;
begin
  Result := RawLists.GetRawList(FConnectionID, FileID);
end;


function TAccess_OniArchive.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo;
begin
  Result := RawLists.GetRawInfo(FConnectionID, FileID, DatOffset);
end;


procedure TAccess_OniArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream);
begin
  if not Assigned(Target) then
    Target := TMemoryStream.Create;
  if not LocSep then
  begin
    if not FRawOpened then
      Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
        fmOpenReadWrite);
    if RawAddr <= Fraw_file.Size then
    begin
      Fraw_file.Seek(RawAddr, soFromBeginning);
      Target.CopyFrom(Fraw_file, size);
      Target.Seek(0, soFromBeginning);
    end;
    if UnloadWhenUnused then
    begin
      FRawOpened := False;
      Fraw_file.Free;
    end
    else
      FRawOpened := True;
  end
  else
  begin
    if not FSepOpened then
      Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
        fmOpenReadWrite);
    if RawAddr <= Fsep_file.Size then
    begin
      Fsep_file.Seek(RawAddr, soFromBeginning);
      Target.CopyFrom(Fsep_file, size);
      Target.Seek(0, soFromBeginning);
    end;
    if UnloadWhenUnused then
    begin
      FSepOpened := False;
      Fsep_file.Free;
    end
    else
      FSepOpened := True;
  end;
end;

procedure TAccess_OniArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer);
var
  data: TStream;
begin
  data := nil;
  LoadRawOffset(LocSep, RawAddr, Size, data);
  data.Read(Target^, Size);
  data.Free;
end;

procedure TAccess_OniArchive.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream);
var
  raw_info: TRawDataInfo;
  streampos: Integer;
begin
  if not Assigned(Target) then
    Target := TMemoryStream.Create;
  if fileid < GetFileCount then
  begin
    raw_info := Self.GetRawInfo(FileID, DatOffset);
    if not raw_info.LocSep then
    begin
      if not FRawOpened then
        Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
          fmOpenReadWrite);
      Fraw_file.Seek(raw_info.RawAddr, soFromBeginning);
      streampos := Target.Position;
      Target.CopyFrom(Fraw_file, raw_info.RawSize);
      Target.Seek(streampos, soFromBeginning);
      if UnloadWhenUnused then
      begin
        FRawOpened := False;
        Fraw_file.Free;
      end
      else
        FRawOpened := True;
    end
    else
    begin
      if FUnloadWhenUnused or not FSepOpened then
        Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
          fmOpenReadWrite);
      Fsep_file.Seek(raw_info.RawAddr, soFromBeginning);
      streampos := Target.Position;
      Target.CopyFrom(Fsep_file, raw_info.RawSize);
      Target.Seek(streampos, soFromBeginning);
      if UnloadWhenUnused then
      begin
        FSepOpened := False;
        Fsep_file.Free;
      end
      else
        FSepOpened := True;
    end;
  end;
end;

procedure TAccess_OniArchive.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream);
var
  raw_info: TRawDataInfo;
begin
  if fileid < GetFileCount then
  begin
    raw_info := GetRawInfo(FileID, DatOffset);
    if not raw_info.LocSep then
    begin
      if not FRawOpened then
        Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
          fmOpenReadWrite);
      Fraw_file.Seek(raw_info.RawAddr, soFromBeginning);
      Fraw_file.CopyFrom(Src, Min(raw_info.RawSize, Src.Size));
      if UnloadWhenUnused then
      begin
        FRawOpened := False;
        Fraw_file.Free;
      end
      else
        FRawOpened := True;
    end
    else
    begin
      if not FSepOpened then
        Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
          fmOpenReadWrite);
      Fsep_file.Seek(raw_info.RawAddr, soFromBeginning);
      Fsep_file.CopyFrom(Src, raw_info.RawSize);
      if UnloadWhenUnused then
      begin
        FSepOpened := False;
        Fsep_file.Free;
      end
      else
        FSepOpened := True;
    end;
  end;
end;

procedure TAccess_OniArchive.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream);
var
  Data: TStream;
  streampos: Integer;
begin
  if not Assigned(Target) then
    Target := TMemoryStream.Create;
  if fileid < Self.GetFileCount then
  begin
    data := nil;
    LoadRawFile(FileID, DatOffset, Data);
    Data.Seek(Offset, soFromBeginning);
    streampos := Target.Position;
    Target.CopyFrom(Data, Size);
    Target.Seek(streampos, soFromBeginning);
  end;
end;


procedure TAccess_OniArchive.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream);
var
  raw_info: TRawDataInfo;
begin
  if fileid < GetFileCount then
  begin
    raw_info := GetRawInfo(FileID, DatOffset);
    if not raw_info.LocSep then
    begin
      if not FRawOpened then
        Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
          fmOpenReadWrite);
      Fraw_file.Seek(raw_info.RawAddr + Offset, soFromBeginning);
      Fraw_file.CopyFrom(Src, Size);
      if UnloadWhenUnused then
      begin
        FRawOpened := False;
        Fraw_file.Free;
      end
      else
        FRawOpened := True;
    end
    else
    begin
      if not FSepOpened then
        Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
          fmOpenReadWrite);
      Fsep_file.Seek(raw_info.RawAddr + Offset, soFromBeginning);
      Fsep_file.CopyFrom(Src, Size);
      if UnloadWhenUnused then
      begin
        FSepOpened := False;
        Fsep_file.Free;
      end
      else
        FSepOpened := True;
    end;
  end;
end;

function TAccess_OniArchive.AppendRawFile(LocSep: Boolean; Src: TStream): Integer;
const
  EmptyBytes: Array[0..31] of Byte = (
      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 );
begin
  if not LocSep then
  begin
    if not FRawOpened then
      Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
        fmOpenReadWrite);
    if (Fraw_file.Size mod 32) > 0 then
      Fraw_file.Write(EmptyBytes[0], 32 - (Fraw_file.Size mod 32));
    Result := Fraw_file.Size;
    Fraw_file.Seek(0, soFromEnd);
    Fraw_file.CopyFrom(Src, Src.Size);
    if (Fraw_file.Size mod 32) > 0 then
      Fraw_file.Write(EmptyBytes[0], 32 - (Fraw_file.Size mod 32));
    if UnloadWhenUnused then
    begin
      FRawOpened := False;
      Fraw_file.Free;
    end
    else
      FRawOpened := True;
  end
  else
  begin
    if not FSepOpened then
      Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
        fmOpenReadWrite);
    if (Fsep_file.Size mod 32) > 0 then
      Fsep_file.Write(EmptyBytes[0], 32 - (Fsep_file.Size mod 32));
    Result := Fsep_file.Size;
    Fsep_file.Seek(0, soFromEnd);
    Fsep_file.CopyFrom(Src, Src.Size);
    if (Fsep_file.Size mod 32) > 0 then
      Fsep_file.Write(EmptyBytes[0], 32 - (Fsep_file.Size mod 32));
    if UnloadWhenUnused then
    begin
      FSepOpened := False;
      Fsep_file.Free;
    end
    else
      FSepOpened := True;
  end;
end;

end.
Revision:	209
Committed:	Mon Jun 4 22:07:29 2007 UTC (18 years, 4 months ago) by alloc
Content type:	text/x-pascal
File size:	21813 byte(s)
Log Message:
#	Content
1	unit Access_OniArchive;
2	interface
3
4	uses DataAccess, Classes, TypeDefs;
5
6	type
7	TAccess_OniArchive = class(TDataAccess)
8	private
9	Fdat_file: TFileStream;
10	Fraw_file: TFileStream;
11	Fsep_file: TFileStream;
12	Fdat_files: TFiles;
13	Fdat_extensionsmap: TExtensionsMap;
14	FUnloadWhenUnused: Boolean;
15	FDatOpened: Boolean;
16	FRawOpened: Boolean;
17	FSepOpened: Boolean;
18	procedure SetUnloadWhenUnused(doit: Boolean);
19	protected
20	public
21	property UnloadWhenUnused: Boolean Read FUnloadWhenUnused Write SetUnloadWhenUnused;
22
23	constructor Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages); override;
24	procedure Close; override;
25
26	function GetFileInfo(FileID: Integer): TFileInfo; override;
27	function GetFilesList(Ext: String; Pattern: String;
28	NoEmptyFiles: Boolean; SortType: TSortType): TStrings; override;
29	function GetFileCount: Integer; override;
30	function GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings; override;
31
32	procedure LoadDatFile(FileID: Integer; var Target: TStream); overload; override;
33	procedure UpdateDatFile(FileID: Integer; Src: TStream); overload; override;
34	procedure LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream); overload; override;
35	procedure UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream); overload; override;
36
37	function GetDatLinks(FileID: Integer): TDatLinkList; override;
38	function GetDatLink(FileID, DatOffset: Integer): TDatLink; override;
39	function GetRawList(FileID: Integer): TRawDataList; override;
40	function GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo; override;
41
42	procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream); overload;
43	procedure LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer); overload;
44	procedure LoadRawFile(FileID, DatOffset: Integer; var Target: TStream); overload; override;
45	procedure UpdateRawFile(FileID, DatOffset: Integer; Src: TStream); overload; override;
46	procedure LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream); overload; override;
47	procedure UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream); overload; override;
48
49	function AppendRawFile(LocSep: Boolean; Src: TStream): Integer; overload; override;
50	published
51	end;
52
53	implementation
54
55	uses
56	SysUtils, StrUtils, Data, Functions, RawList, DatLinks, Math;
57
58
59	(*
60	================================================================================
61	Implementation of TOniDataDat
62	*)
63
64
65	constructor TAccess_OniArchive.Create(DatFilename: String; ConnectionID: Integer; var Msg: TStatusMessages);
66	var
67	i: Integer;
68	header_pc, header_mac, header_macbeta: Boolean;
69	Fdat_header: THeader;
70	Fdat_filesmap: TFilesMap;
71	Fdat_namedfilesmap: TNamedFilesMap;
72	begin
73	FUnloadWhenUnused := True;
74	FDatOpened := False;
75	FRawOpened := False;
76	Msg := SM_UnknownError;
77	if not FileExists(DatFilename) then
78	begin
79	Msg := SM_FileNotFound;
80	Exit;
81	end;
82	FFileName := DatFilename;
83	Fdat_file := TFileStream.Create(FFileName, fmOpenRead);
84	Fdat_file.Read(Fdat_header, SizeOf(Fdat_header));
85	header_pc := True;
86	header_mac := True;
87	header_macbeta := True;
88	for i := 0 to High(Fdat_header.GlobalIdent) do
89	if Fdat_header.GlobalIdent[i] <> HeaderGlobalIdent[i] then
90	begin
91	Msg := SM_IncompatibleFile;
92	Exit;
93	end;
94
95	for i := 0 to High(Fdat_header.OSIdent) do
96	begin
97	if Fdat_header.OSIdent[i] <> HeaderOSIdentWin[i] then
98	header_pc := False;
99	if Fdat_header.OSIdent[i] <> HeaderOSIdentMac[i] then
100	header_mac := False;
101	if Fdat_header.OSIdent[i] <> HeaderOSIdentMacBeta[i] then
102	header_macbeta := False;
103	end;
104	if not (header_pc xor header_mac xor header_macbeta) then
105	begin
106	Msg := SM_IncompatibleFile;
107	Exit;
108	end
109	else
110	begin
111	if (header_pc and not header_mac and not header_macbeta) then
112	FDataOS := DOS_WIN
113	else if (not header_pc and header_mac and not header_macbeta) then
114	FDataOS := DOS_MAC
115	else if (not header_pc and not header_mac and header_macbeta) then
116	FDataOS := DOS_MACBETA;
117	end;
118	SetLength(Fdat_filesmap, Fdat_header.Files);
119	SetLength(Fdat_files, Fdat_header.Files);
120	for i := 0 to Fdat_header.Files - 1 do
121	Fdat_file.Read(Fdat_filesmap[i], SizeOf(Fdat_filesmap[i]));
122	for i := 0 to Fdat_header.Files - 1 do
123	begin
124	Fdat_files[i].ID := i;
125	Fdat_files[i].Extension := Fdat_filesmap[i].Extension;
126	Fdat_files[i].Extension := ReverseString(Fdat_files[i].Extension);
127	Fdat_files[i].Size := Fdat_filesmap[i].FileSize;
128	Fdat_files[i].FileType := Fdat_filesmap[i].FileType;
129	Fdat_files[i].DatAddr := Fdat_filesmap[i].DataAddr - 8 + Fdat_header.DataAddr;
130	if (Fdat_filesmap[i].FileType and $01) = 0 then
131	begin
132	Fdat_file.Seek(Fdat_filesmap[i].NameAddr + Fdat_header.NamesAddr, soFromBeginning);
133	SetLength(Fdat_files[i].Name, 100);
134	Fdat_file.Read(Fdat_files[i].Name[1], 100);
135	Fdat_files[i].Name := MidStr(Fdat_files[i].Name, 1 + 4, Pos(
136	#0, Fdat_files[i].Name) - 1 - 4);
137	end
138	else
139	begin
140	Fdat_files[i].Name := '';
141	end;
142	end;
143	Fdat_file.Seek($40 + Fdat_header.Files * $14, soFromBeginning);
144	SetLength(Fdat_namedfilesmap, Fdat_header.NamedFiles);
145	for i := 0 to Fdat_header.NamedFiles - 1 do
146	Fdat_file.Read(Fdat_namedfilesmap[i], SizeOf(Fdat_namedfilesmap[i]));
147
148	Fdat_file.Seek($40 + Fdat_header.Files * $14 + Fdat_header.NamedFiles * $8, soFromBeginning);
149	SetLength(Fdat_extensionsmap, Fdat_header.Extensions);
150	for i := 0 to Fdat_header.Extensions - 1 do
151	Fdat_file.Read(Fdat_extensionsmap[i], SizeOf(Fdat_extensionsmap[i]));
152
153	Fdat_file.Seek(Fdat_files[0].DatAddr + 7, soFromBeginning);
154	Fdat_file.Read(FLevelNumber, 1);
155	FLevelNumber := FLevelNumber div 2;
156
157	Fdat_file.Free;
158
159	Msg := SM_OK;
160	FBackend := DB_ONI;
161	FConnectionID := ConnectionID;
162	FChangeRights := [CR_EditDat, CR_EditRaw, CR_AppendRaw];
163	end;
164
165
166
167
168	procedure TAccess_OniArchive.SetUnloadWhenUnused(doit: Boolean);
169	begin
170	FUnloadWhenUnused := doit;
171	if FUnloadWhenUnused then
172	begin
173	if FDatOpened then
174	begin
175	FDatOpened := False;
176	Fdat_file.Free;
177	end;
178	if FRawOpened then
179	begin
180	FRawOpened := False;
181	Fraw_file.Free;
182	end;
183	if FSepOpened then
184	begin
185	FSepOpened := False;
186	Fsep_file.Free;
187	end;
188	end
189	else
190	begin
191	if not FDatOpened then
192	begin
193	Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
194	FDatOpened := True;
195	end;
196	if not FRawOpened then
197	begin
198	Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
199	fmOpenReadWrite);
200	FRawOpened := True;
201	end;
202	if (not FSepOpened) and (FDataOS <> DOS_WIN) then
203	begin
204	Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
205	fmOpenReadWrite);
206	FSepOpened := True;
207	end;
208	end;
209	end;
210
211
212
213
214
215	procedure TAccess_OniArchive.Close;
216	begin
217	if FDatOpened then
218	Fdat_file.Free;
219	if FRawOpened then
220	Fraw_file.Free;
221	if FSepOpened then
222	Fsep_file.Free;
223	Self.Free;
224	end;
225
226
227
228
229	function TAccess_OniArchive.GetFileInfo(fileid: Integer): TFileInfo;
230	begin
231	if fileid = -1 then
232	begin
233	Result := inherited GetFileInfo(fileid);
234	Exit;
235	end;
236	if fileid < Self.GetFileCount then
237	Result := Fdat_files[fileid]
238	else
239	Result.ID := -1;
240	end;
241
242
243
244
245	function TAccess_OniArchive.GetFilesList(ext: String; pattern: String;
246	NoEmptyFiles: Boolean; SortType: TSortType): TStrings;
247	var
248	i: Integer;
249	list: TStringList;
250	id, name, extension: String;
251	fields: TStrings;
252
253	procedure getfields;
254	begin
255	fields.CommaText := StringReplace(AnsiQuotedStr(list.Strings[i], '"'), ';', '","', [rfReplaceAll]);
256	if SortType in [ST_IDAsc, ST_IDDesc] then
257	begin
258	id := fields.Strings[0];
259	name := fields.Strings[1];
260	extension := fields.Strings[2];
261	end;
262	if SortType in [ST_NameAsc, ST_NameDesc] then
263	begin
264	id := fields.Strings[1];
265	name := fields.Strings[0];
266	extension := fields.Strings[2];
267	end;
268	if SortType in [ST_ExtAsc, ST_ExtDesc] then
269	begin
270	id := fields.Strings[1];
271	name := fields.Strings[2];
272	extension := fields.Strings[0];
273	end;
274	if SortType in [ST_ExtNameAsc, ST_ExtNameDesc] then
275	begin
276	id := fields.Strings[2];
277	name := fields.Strings[1];
278	extension := fields.Strings[0];
279	end;
280	end;
281
282	begin
283	list := TStringList.Create;
284	list.Sorted := True;
285	for i := 0 to GetFileCount - 1 do
286	begin
287	if ((Length(ext) = 0) or (Pos(Fdat_files[i].Extension, ext) > 0)) and
288	((Length(pattern) = 0) or
289	(Pos(UpperCase(pattern), UpperCase(Fdat_files[i].Name)) > 0)) then
290	begin
291	if (NoEmptyFiles = False) or ((Fdat_files[i].FileType and $02) = 0) then
292	begin
293	id := FormatNumber(Fdat_files[i].ID, 5, '0');
294	name := Fdat_files[i].Name;
295	extension := Fdat_files[i].Extension;
296
297	case SortType of
298	ST_IDAsc, ST_IDDesc: list.Add(id + ';' + name + ';' + extension);
299	ST_NameAsc, ST_NameDesc: list.Add(name + ';' + id + ';' + extension);
300	ST_ExtAsc, ST_ExtDesc: list.Add(extension + ';' + id + ';' + name);
301	ST_ExtNameAsc, ST_ExtNameDesc: list.Add(name + ';' + extension + ';' + id);
302	end;
303	end;
304	end;
305	end;
306	if not Assigned(Result) then
307	Result := TStringList.Create;
308	if list.Count > 0 then
309	begin
310	fields := TStringList.Create;
311	if SortType in [ST_IDAsc, ST_NameAsc, ST_ExtAsc, ST_ExtNameAsc] then
312	for i := 0 to list.Count - 1 do
313	begin
314	getfields;
315	Result.Add(id + '-' + name + '.' + extension);
316	end
317	else
318	for i := list.Count - 1 downto 0 do
319	begin
320	getfields;
321	Result.Add(id + '-' + name + '.' + extension);
322	end;
323	fields.Free;
324	end;
325	list.Free;
326	end;
327
328
329
330
331	function TAccess_OniArchive.GetFileCount: Integer;
332	begin
333	Result := Length(Fdat_files);
334	end;
335
336
337
338
339	function TAccess_OniArchive.GetExtensionsList(ExtListFormat: TExtensionFormat): TStrings;
340	var
341	i: Integer;
342	begin
343	if not Assigned(Result) then
344	Result := TStringList.Create;
345	if Result is TStringList then
346	TStringList(Result).Sorted := True;
347	for i := 0 to Length(Fdat_extensionsmap) - 1 do
348	begin
349	with Fdat_extensionsmap[i] do
350	begin
351	case ExtListFormat of
352	EF_ExtOnly:
353	Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0]);
354	EF_ExtCount:
355	Result.Add(Extension[3] + Extension[2] + Extension[1] + Extension[0] +
356	' (' + IntToStr(ExtCount) + ')');
357	end;
358	end;
359	end;
360	end;
361
362
363
364	procedure TAccess_OniArchive.LoadDatFile(FileID: Integer; var Target: TStream);
365	var
366	streampos: Integer;
367	begin
368	if fileid < GetFileCount then
369	begin
370	if not Assigned(Target) then
371	Target := TMemoryStream.Create;
372	if not FDatOpened then
373	Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
374	Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning);
375	streampos := Target.Position;
376	Target.CopyFrom(Fdat_file, Fdat_files[fileid].Size);
377	Target.Seek(streampos, soFromBeginning);
378	if UnloadWhenUnused then
379	begin
380	Fdat_file.Free;
381	FDatOpened := False;
382	end
383	else
384	FDatOpened := True;
385	end;
386	end;
387
388	procedure TAccess_OniArchive.UpdateDatFile(FileID: Integer; Src: TStream);
389	begin
390	if fileid < GetFileCount then
391	begin
392	if not FDatOpened then
393	Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
394	Fdat_file.Seek(Fdat_files[fileid].DatAddr, soFromBeginning);
395	Fdat_file.CopyFrom(Src, Fdat_files[fileid].Size);
396	if UnloadWhenUnused then
397	begin
398	Fdat_file.Free;
399	FDatOpened := False;
400	end
401	else
402	FDatOpened := True;
403	end;
404	end;
405
406	procedure TAccess_OniArchive.LoadDatFilePart(FileID, Offset, Size: Integer; var Target: TStream);
407	var
408	streampos: Integer;
409	begin
410	if fileid < GetFileCount then
411	begin
412	if not Assigned(Target) then
413	Target := TMemoryStream.Create;
414	if not FDatOpened then
415	Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
416	Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning);
417	streampos := Target.Position;
418	Target.CopyFrom(Fdat_file, size);
419	Target.Seek(streampos, soFromBeginning);
420	if UnloadWhenUnused then
421	begin
422	FDatOpened := False;
423	Fdat_file.Free;
424	end
425	else
426	FDatOpened := True;
427	end;
428	end;
429
430	procedure TAccess_OniArchive.UpdateDatFilePart(FileID, Offset, Size: Integer; Src: TStream);
431	begin
432	if fileid < GetFileCount then
433	begin
434	if not FDatOpened then
435	Fdat_file := TFileStream.Create(FFileName, fmOpenReadWrite);
436	Fdat_file.Seek(Fdat_files[fileid].DatAddr + offset, soFromBeginning);
437	Fdat_file.CopyFrom(Src, Size);
438	if UnloadWhenUnused then
439	begin
440	Fdat_file.Free;
441	FDatOpened := False;
442	end
443	else
444	FDatOpened := True;
445	end;
446	end;
447
448
449
450	function TAccess_OniArchive.GetDatLink(FileID, DatOffset: Integer): TDatLink;
451	var
452	link: Integer;
453	begin
454	Result := DatLinksManager.GetDatLink(FConnectionID, FileID, DatOffset);
455	LoadDatFilePart(fileid, Result.SrcOffset, 4, @link);
456	if link > 0 then
457	Result.DestID := link div 256
458	else
459	Result.DestID := -1;
460	end;
461
462
463	function TAccess_OniArchive.GetDatLinks(FileID: Integer): TDatLinkList;
464	var
465	i: Integer;
466	link: Integer;
467	begin
468	Result := DatLinksManager.GetDatLinks(FConnectionID, FileID);
469	if Length(Result) > 0 then
470	begin
471	for i := 0 to High(Result) do
472	begin
473	LoadDatFilePart(fileid, Result[i].SrcOffset, 4, @link);
474	if link > 0 then
475	Result[i].DestID := link div 256
476	else
477	Result[i].DestID := -1;
478	end;
479	end;
480	end;
481
482
483	function TAccess_OniArchive.GetRawList(FileID: Integer): TRawDataList;
484	begin
485	Result := RawLists.GetRawList(FConnectionID, FileID);
486	end;
487
488
489	function TAccess_OniArchive.GetRawInfo(FileID, DatOffset: Integer): TRawDataInfo;
490	begin
491	Result := RawLists.GetRawInfo(FConnectionID, FileID, DatOffset);
492	end;
493
494
495
496	procedure TAccess_OniArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; var target: TStream);
497	begin
498	if not Assigned(Target) then
499	Target := TMemoryStream.Create;
500	if not LocSep then
501	begin
502	if not FRawOpened then
503	Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
504	fmOpenReadWrite);
505	if RawAddr <= Fraw_file.Size then
506	begin
507	Fraw_file.Seek(RawAddr, soFromBeginning);
508	Target.CopyFrom(Fraw_file, size);
509	Target.Seek(0, soFromBeginning);
510	end;
511	if UnloadWhenUnused then
512	begin
513	FRawOpened := False;
514	Fraw_file.Free;
515	end
516	else
517	FRawOpened := True;
518	end
519	else
520	begin
521	if not FSepOpened then
522	Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
523	fmOpenReadWrite);
524	if RawAddr <= Fsep_file.Size then
525	begin
526	Fsep_file.Seek(RawAddr, soFromBeginning);
527	Target.CopyFrom(Fsep_file, size);
528	Target.Seek(0, soFromBeginning);
529	end;
530	if UnloadWhenUnused then
531	begin
532	FSepOpened := False;
533	Fsep_file.Free;
534	end
535	else
536	FSepOpened := True;
537	end;
538	end;
539
540	procedure TAccess_OniArchive.LoadRawOffset(LocSep: Boolean; RawAddr, Size: Integer; target: Pointer);
541	var
542	data: TStream;
543	begin
544	data := nil;
545	LoadRawOffset(LocSep, RawAddr, Size, data);
546	data.Read(Target^, Size);
547	data.Free;
548	end;
549
550	procedure TAccess_OniArchive.LoadRawFile(FileID, DatOffset: Integer; var Target: TStream);
551	var
552	raw_info: TRawDataInfo;
553	streampos: Integer;
554	begin
555	if not Assigned(Target) then
556	Target := TMemoryStream.Create;
557	if fileid < GetFileCount then
558	begin
559	raw_info := Self.GetRawInfo(FileID, DatOffset);
560	if not raw_info.LocSep then
561	begin
562	if not FRawOpened then
563	Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
564	fmOpenReadWrite);
565	Fraw_file.Seek(raw_info.RawAddr, soFromBeginning);
566	streampos := Target.Position;
567	Target.CopyFrom(Fraw_file, raw_info.RawSize);
568	Target.Seek(streampos, soFromBeginning);
569	if UnloadWhenUnused then
570	begin
571	FRawOpened := False;
572	Fraw_file.Free;
573	end
574	else
575	FRawOpened := True;
576	end
577	else
578	begin
579	if FUnloadWhenUnused or not FSepOpened then
580	Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
581	fmOpenReadWrite);
582	Fsep_file.Seek(raw_info.RawAddr, soFromBeginning);
583	streampos := Target.Position;
584	Target.CopyFrom(Fsep_file, raw_info.RawSize);
585	Target.Seek(streampos, soFromBeginning);
586	if UnloadWhenUnused then
587	begin
588	FSepOpened := False;
589	Fsep_file.Free;
590	end
591	else
592	FSepOpened := True;
593	end;
594	end;
595	end;
596
597	procedure TAccess_OniArchive.UpdateRawFile(FileID, DatOffset: Integer; Src: TStream);
598	var
599	raw_info: TRawDataInfo;
600	begin
601	if fileid < GetFileCount then
602	begin
603	raw_info := GetRawInfo(FileID, DatOffset);
604	if not raw_info.LocSep then
605	begin
606	if not FRawOpened then
607	Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
608	fmOpenReadWrite);
609	Fraw_file.Seek(raw_info.RawAddr, soFromBeginning);
610	Fraw_file.CopyFrom(Src, Min(raw_info.RawSize, Src.Size));
611	if UnloadWhenUnused then
612	begin
613	FRawOpened := False;
614	Fraw_file.Free;
615	end
616	else
617	FRawOpened := True;
618	end
619	else
620	begin
621	if not FSepOpened then
622	Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
623	fmOpenReadWrite);
624	Fsep_file.Seek(raw_info.RawAddr, soFromBeginning);
625	Fsep_file.CopyFrom(Src, raw_info.RawSize);
626	if UnloadWhenUnused then
627	begin
628	FSepOpened := False;
629	Fsep_file.Free;
630	end
631	else
632	FSepOpened := True;
633	end;
634	end;
635	end;
636
637	procedure TAccess_OniArchive.LoadRawFilePart(FileID, DatOffset, Offset, Size: Integer; var Target: TStream);
638	var
639	Data: TStream;
640	streampos: Integer;
641	begin
642	if not Assigned(Target) then
643	Target := TMemoryStream.Create;
644	if fileid < Self.GetFileCount then
645	begin
646	data := nil;
647	LoadRawFile(FileID, DatOffset, Data);
648	Data.Seek(Offset, soFromBeginning);
649	streampos := Target.Position;
650	Target.CopyFrom(Data, Size);
651	Target.Seek(streampos, soFromBeginning);
652	end;
653	end;
654
655
656	procedure TAccess_OniArchive.UpdateRawFilePart(FileID, DatOffset, Offset, Size: Integer; Src: TStream);
657	var
658	raw_info: TRawDataInfo;
659	begin
660	if fileid < GetFileCount then
661	begin
662	raw_info := GetRawInfo(FileID, DatOffset);
663	if not raw_info.LocSep then
664	begin
665	if not FRawOpened then
666	Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
667	fmOpenReadWrite);
668	Fraw_file.Seek(raw_info.RawAddr + Offset, soFromBeginning);
669	Fraw_file.CopyFrom(Src, Size);
670	if UnloadWhenUnused then
671	begin
672	FRawOpened := False;
673	Fraw_file.Free;
674	end
675	else
676	FRawOpened := True;
677	end
678	else
679	begin
680	if not FSepOpened then
681	Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
682	fmOpenReadWrite);
683	Fsep_file.Seek(raw_info.RawAddr + Offset, soFromBeginning);
684	Fsep_file.CopyFrom(Src, Size);
685	if UnloadWhenUnused then
686	begin
687	FSepOpened := False;
688	Fsep_file.Free;
689	end
690	else
691	FSepOpened := True;
692	end;
693	end;
694	end;
695
696	function TAccess_OniArchive.AppendRawFile(LocSep: Boolean; Src: TStream): Integer;
697	const
698	EmptyBytes: Array[0..31] of Byte = (
699	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 );
700	begin
701	if not LocSep then
702	begin
703	if not FRawOpened then
704	Fraw_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.raw'),
705	fmOpenReadWrite);
706	if (Fraw_file.Size mod 32) > 0 then
707	Fraw_file.Write(EmptyBytes[0], 32 - (Fraw_file.Size mod 32));
708	Result := Fraw_file.Size;
709	Fraw_file.Seek(0, soFromEnd);
710	Fraw_file.CopyFrom(Src, Src.Size);
711	if (Fraw_file.Size mod 32) > 0 then
712	Fraw_file.Write(EmptyBytes[0], 32 - (Fraw_file.Size mod 32));
713	if UnloadWhenUnused then
714	begin
715	FRawOpened := False;
716	Fraw_file.Free;
717	end
718	else
719	FRawOpened := True;
720	end
721	else
722	begin
723	if not FSepOpened then
724	Fsep_file := TFileStream.Create(AnsiReplaceStr(FFileName, '.dat', '.sep'),
725	fmOpenReadWrite);
726	if (Fsep_file.Size mod 32) > 0 then
727	Fsep_file.Write(EmptyBytes[0], 32 - (Fsep_file.Size mod 32));
728	Result := Fsep_file.Size;
729	Fsep_file.Seek(0, soFromEnd);
730	Fsep_file.CopyFrom(Src, Src.Size);
731	if (Fsep_file.Size mod 32) > 0 then
732	Fsep_file.Write(EmptyBytes[0], 32 - (Fsep_file.Size mod 32));
733	if UnloadWhenUnused then
734	begin
735	FSepOpened := False;
736	Fsep_file.Free;
737	end
738	else
739	FSepOpened := True;
740	end;
741	end;
742
743	end.