source: oup/current/Helper/LevelDB.pas@ 347

unit LevelDB;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, StdCtrls, StrUtils;

type
  TForm_LevelDB = class(TForm)
    group_progress: TGroupBox;
    progress:     TProgressBar;
    lbl_progress: TLabel;
    btn_abortok:  TButton;
    lbl_estimation: TLabel;
    procedure btn_abortokClick(Sender: TObject);
  public
    procedure CreateDatabase(Source, Target: String);
    procedure CreateLevel(Source, Target: String);
  end;


var
  Form_LevelDB: TForm_LevelDB;

implementation
{$R *.dfm}
uses ABSMain, ABSDecUtil, Main,
    ConnectionManager, TypeDefs, DataAccess, OniImgClass, Data, RawList, 
  Access_OniArchive;

var
  Converting:  Boolean = False;
  Abort:       Boolean = False;


function GetOpenMsg(msg: TStatusMessages): String;
begin
  case msg of
    SM_AlreadyOpened:    Result := 'File already opened.';
    SM_FileNotFound:     Result := 'File not found.';
    SM_UnknownExtension: Result := 'Unknown extension.';
    SM_IncompatibleFile: Result := 'Incompatible file format.';
    SM_UnknownError:     Result := 'Unknown error.';
  end;
end;


procedure TForm_LevelDB.CreateLevel(Source, Target: String);
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 );
var
  DatHeader:        THeader;
  FilesHeader:      TFilesMap;
  NamedFilesHeader: TNamedFilesMap;
  ExtensionsHeader: TExtensionsMap;

  Stream_Body, Stream_Names:          TMemoryStream;
  Stream_Dat, Stream_Raw, Stream_Sep: TFileStream;

  BeginTime, FileTime: Double;
  Step:     Integer;
  LevelID:    Integer;
  TimeFormat: TFormatSettings;

  ConID:      Integer;
  Connection: TDataAccess;
  ConRepMsg:  TStatusMessages;

  FileID:     Integer;

  Strings:    TStrings;
  i, j:       Integer;
  temps:      String;
  tempi:      Integer;
  tempb:      Byte;
  FileInfo:   TFileInfo;
  DatLinks:   TDatLinkList;
  RawLinks:   TRawDataList;

  DatFileStream, RawFileStream: TMemoryStream;
const
  Steps: Byte = 3;


  procedure DoStep(StepName: String);
  begin
    Inc(Step);
    if StepName <> 'FIN' then
      group_progress.Caption :=
        'Creating Dat (Step ' + IntToStr(Step) + '/' + IntToStr(Steps) + ': ' + StepName + ')'
    else
      group_progress.Caption := 'Creating Dat (FINISHED)';
  end;

  procedure StopConvert;
  begin
    btn_abortok.Caption := '&Close';
    btn_abortok.Default := True;
    converting := False;
    lbl_estimation.Caption := 'ABORTED';
    group_progress.Caption := 'Creating Level (ABORTED)';

    Stream_Body.Free;
    Stream_Names.Free;
    DatFileStream.Free;
    RawFileStream.Free;
    
    Stream_Dat.Free;
    Stream_Raw.Free;
    if Connection.DataOS in [DOS_WINDEMO, DOS_MAC, DOS_MACBETA] then
      Stream_Sep.Free;
    
    if MessageBox(Self.Handle, PChar('Delete the unfinished level-files?'),
      PChar('Delete files?'), MB_YESNO) = idYes then
    begin
      DeleteFile(target);
      DeleteFile(AnsiReplaceStr(Target, '.dat', '.raw'));
      if Connection.DataOS in [DOS_WINDEMO, DOS_MAC, DOS_MACBETA] then
        DeleteFile(AnsiReplaceStr(Target, '.dat', '.sep'));
    end;
  end;

begin

  //
  // FILE EXISTS CHECK FÜR DAT/RAW/SEP!!!
  //

  TimeFormat.ShortTimeFormat := 'hh:nn:ss';
  TimeFormat.LongTimeFormat  := 'hh:nn:ss';
  TimeFormat.TimeSeparator   := ':';

  ConID := ConManager.OpenConnection(Source, ConRepMsg);
  if not (ConRepMsg in [SM_OK, SM_AlreadyOpened]) then
  begin
    ShowMessage('Source-file couldn''t be opened! Aborting' + CrLf + GetOpenMsg(ConRepMsg));
    Exit;
  end else
    Connection := ConManager.Connection[ConID];

  ConID := ConManager.FileOpened(Target);
  if ConID >= 0 then
  begin
    if MessageBox(Self.Handle, PChar('Destination-file is opened, close it in ' +
          'order to proceed conversion?'), PChar('Destination-file opened'),
          MB_YESNO + MB_ICONQUESTION) = ID_YES then
    begin
      if Form_Main.CheckConnectionCloseable(ConID) then
        if not ConManager.CloseConnection(ConID, ConRepMsg) then
        begin
          ShowMessage('Couldn''t close destination-file. Aborting');
          Exit;
        end;
    end else begin
      ShowMessage('Aborting');
      Exit;
    end;
  end;

  if FileExists(Target) then
  begin
    if MessageBox(Self.Handle, PChar('Destination-file exists. ' +
          'Overwrite it?'), PChar('Destination-file exists'),
          MB_YESNO + MB_ICONWARNING) = ID_YES then
    begin
      if not DeleteFile(Target) then
      begin
        ShowMessage('Couldn''t delete file. Aborting');
        Exit;
      end;
      if FileExists(AnsiReplaceStr(Target, '.dat', '.raw')) then
        if not DeleteFile(AnsiReplaceStr(Target, '.dat', '.raw')) then
        begin
          ShowMessage('Couldn''t delete file. Aborting');
          Exit;
        end;
      if FileExists(AnsiReplaceStr(Target, '.dat', '.sep')) then
        if Connection.DataOS in [DOS_WINDEMO, DOS_MAC, DOS_MACBETA] then
          if not DeleteFile(AnsiReplaceStr(Target, '.dat', '.sep')) then
          begin
            ShowMessage('Couldn''t delete file. Aborting');
            Exit;
          end;
    end else begin
      ShowMessage('Aborting');
      Exit;
    end;
  end;

  LevelID  := Connection.LevelNumber;
  LevelID  := (LevelID * 2) * 256 * 256 * 256 + $01;

  Self.Visible := True;
  Form_Main.Visible := False;
  Step := 0;
  Converting := True;
  Abort := False;
  btn_abortok.Caption := '&Abort...';
  btn_abortok.Default := False;
  BeginTime := Time;

  Stream_Body  := TMemoryStream.Create;
  Stream_Names := TMemoryStream.Create;
  Stream_Dat   := TFileStream.Create(Target, fmCreate);
  Stream_Raw   := TFileStream.Create(AnsiReplaceStr(Target, '.dat', '.raw'), fmCreate);
  Stream_Raw.Write(EmptyBytes[0], 32);
  if Connection.DataOS in [DOS_WINDEMO, DOS_MAC, DOS_MACBETA] then
  begin
    Stream_Sep := TFileStream.Create(AnsiReplaceStr(Target, '.dat', '.sep'), fmCreate);
    Stream_Sep.Write(EmptyBytes[0], 32);
  end;


  DoStep('Creating header');
  progress.Position      := 0;
  lbl_progress.Caption   := '';
  lbl_estimation.Caption := 'Estimated finishing time: unknown';
  Application.ProcessMessages;

  SetLength(NamedFilesHeader, 0);
  Strings := TStringList.Create;
  Strings := Connection.GetFilesList('', '', False, ST_ExtNameAsc);
  for i := 0 to Strings.Count - 1 do
  begin
    if MidStr(Strings.Strings[i],
          Pos('-', Strings.Strings[i]) + 1,
          Length(Strings.Strings[i]) -
            Pos('.', ReverseString(Strings.Strings[i])) -
            Pos('-', Strings.Strings[i])
        ) <> '' then
    begin
      SetLength(NamedFilesHeader, Length(NamedFilesHeader) + 1);
      NamedFilesHeader[High(NamedFilesHeader)].FileNumber := StrToInt(MidStr(Strings.Strings[i], 1, 5));
      NamedFilesHeader[High(NamedFilesHeader)].blubb := 0;
    end;
  end;

  for i := 0 to High(DatHeader.OSIdent) do
    case Connection.DataOS of
      DOS_WIN: DatHeader.OSIdent[i] := HeaderOSIdentWin[i];
      DOS_MAC, DOS_WINDEMO: DatHeader.OSIdent[i] := HeaderOSIdentMac[i];
      DOS_MACBETA: DatHeader.OSIdent[i] := HeaderOSIdentMacBeta[i];
    end;
  for i := 0 to High(DatHeader.GlobalIdent) do
    DatHeader.GlobalIdent[i] := HeaderGlobalIdent[i];
  DatHeader.Files := Connection.GetFileCount;
  DatHeader.NamedFiles := Length(NamedFilesHeader);

  Strings := Connection.GetExtensionsList(EF_ExtCount);

  DatHeader.Extensions := Strings.Count;
  DatHeader.DataAddr   := 0;
  DatHeader.DataSize   := 0;
  DatHeader.NamesAddr  := 0;
  DatHeader.NamesSize  := 0;
  for i := 0 to High(DatHeader.Ident2) do
    DatHeader.Ident2[i] := 0;
  SetLength(FilesHeader, DatHeader.Files);
  SetLength(ExtensionsHeader, DatHeader.Extensions);


  DoStep('Writing extensions-header');
  progress.Max := Strings.Count;
  Application.ProcessMessages;
  for i := 0 to Strings.Count - 1 do
  begin
    temps := Strings.Strings[i];
    ExtensionsHeader[i].ExtCount := StrToInt( MidStr(
            temps,
            Pos('(', temps) + 1,
            Pos(')', temps) - Pos('(', temps) - 1 ) );
    temps := MidStr(temps, 1, 4);
    for j := 0 to 3 do
      ExtensionsHeader[i].Extension[j] := temps[4-j];
    for j := 0 to High(FileTypes) do
      if FileTypes[j].Extension = temps then
        Break;
    if j < Length(FileTypes) then
    begin
      case Connection.DataOS of
        DOS_WIN:     ExtensionsHeader[i].Ident := FileTypes[j].IdentWin;
        DOS_WINDEMO:
            if FileTypes[j].Extension = 'SNDD' then
              ExtensionsHeader[i].Ident := FileTypes[j].IdentWin
            else
              ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
        DOS_MAC:     ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
        DOS_MACBETA: ExtensionsHeader[i].Ident := FileTypes[j].IdentMac;
      end;
    end else begin
      ShowMessage('Unknown Extension: ' + Strings.Strings[i]);
      Exit;
    end;
    progress.Position    := i + 1;
    lbl_progress.Caption := 'Extensions done: ' + IntToStr(i + 1) + '/' +
      IntToStr(Strings.Count);
    Application.ProcessMessages;
  end;

  DoStep('Storing files-data');
  progress.Position := 0;
  progress.Max      := DatHeader.Files;
  lbl_progress.Caption := '';
  lbl_estimation.Caption := 'Estimated finishing time: unknown';
  Application.ProcessMessages;

  FileTime := Time;
  for FileID := 0 to DatHeader.Files - 1 do
  begin
    FileInfo := Connection.GetFileInfo(FileID);
    for j := 0 to 3 do
      FilesHeader[FileID].Extension[j] := FileInfo.Extension[4 - j];
    if FileInfo.Size > 0 then
    begin
      FilesHeader[FileID].DataAddr := Stream_Body.Size + 8;
      DatFileStream := TMemoryStream.Create;
      Connection.LoadDatFile(FileID, TStream(DatFileStream));
      DatFileStream.Seek(0, soFromBeginning);
      tempi := FileID * 256 + 1;
      DatFileStream.Write(tempi, 4);
      DatFileStream.Write(LevelID, 4);

      DatLinks := Connection.GetDatLinks(FileID);
      if Length(DatLinks) > 0 then
      begin
        for i := 0 to High(DatLinks) do
        begin
          DatFileStream.Seek(DatLinks[i].SrcOffset, soFromBeginning);
          if DatLinks[i].DestID < 0 then
            tempi := 0
          else
            tempi := DatLinks[i].DestID * 256 + 1;
          DatFileStream.Write(tempi, 4);
        end;
      end;

      RawLinks := Connection.GetRawList(FileID);
      if Length(RawLinks) > 0 then
      begin
        for i := 0 to High(RawLinks) do
        begin
          if RawLinks[i].RawSize > 0 then
          begin
            RawFileStream := TMemoryStream.Create;
            Connection.LoadRawFile(FileID, RawLinks[i].SrcOffset, TStream(RawFileStream));
            RawFileStream.Seek(0, soFromBeginning);
            if RawLinks[i].LocSep then
            begin
              RawLinks[i].RawAddr := Stream_Sep.Size;
              Stream_sep.CopyFrom(RawFileStream, RawFileStream.Size);
              if (Stream_Sep.Size mod 32) > 0 then
                Stream_Sep.Write(EmptyBytes[0], 32 - (Stream_Sep.Size mod 32));
            end else begin
              RawLinks[i].RawAddr := Stream_Raw.Size;
              Stream_Raw.CopyFrom(RawFileStream, RawFileStream.Size);
              if (Stream_Raw.Size mod 32) > 0 then
                Stream_Raw.Write(EmptyBytes[0], 32 - (Stream_Raw.Size mod 32));
            end;
          end else
            RawLinks[i].RawAddr := 0;
          DatFileStream.Seek(RawLinks[i].SrcOffset, soFromBeginning);
          DatFileStream.Write(RawLinks[i].RawAddr, 4);
        end;
      end;
      DatFileStream.Seek(0, soFromBeginning);
      Stream_Body.CopyFrom(DatFileStream, DatFileStream.Size);
      if (Stream_Body.Size mod 32) > 0 then
      begin
        ShowMessage(
            IntToStr(FileID) + '-' + FileInfo.Name + '.' + FileInfo.Extension + #13#10 +
            IntToStr(FileInfo.Size) + ' - 0x' + IntToHex(FileInfo.Size, 6) + ' - real: ' + IntToStr(DatFileStream.Size) + ' - 0x' + IntToHex(DatFileStream.Size, 6) + #13#10 +
            IntToStr(Stream_Body.Size) + ' - 0x' + IntToHex(Stream_Body.Size, 6) );
        Stream_Body.Write(EmptyBytes[0], 32 - (Stream_Body.Size mod 32));
      end;
    end
    else
      FilesHeader[FileID].DataAddr := 0;
    if Length(fileinfo.Name) > 0 then
    begin
      FilesHeader[FileID].NameAddr := Stream_Names.Size;
      temps := fileinfo.Extension + fileinfo.Name + Chr(0);
      Stream_Names.Write(temps[1], Length(temps));
    end
    else
      FilesHeader[FileID].NameAddr := 0;
    FilesHeader[FileID].FileSize := fileinfo.Size;
    FilesHeader[FileID].FileType := fileinfo.FileType;

    if ((FileID mod 10) = 0) and (FileID >= 100) then
      lbl_estimation.Caption := 'Estimated time left: ' + TimeToStr(
        (Time - FileTime) / FileID * (progress.Max - FileID + 1) * 1.1, TimeFormat );
    progress.Position := FileID + 1;
    lbl_progress.Caption := 'Files done: ' + IntToStr(FileID + 1) + '/' + IntToStr(progress.Max);
    Application.ProcessMessages;
  end;

  Stream_Dat.Write(DatHeader, SizeOf(DatHeader));
  for i := 0 to High(FilesHeader) do
    Stream_Dat.Write(FilesHeader[i], SizeOf(FilesHeader[i]));
  for i := 0 to High(NamedFilesHeader) do
    Stream_Dat.Write(NamedFilesHeader[i], SizeOf(NamedFilesHeader[i]));
  for i := 0 to High(ExtensionsHeader) do
    Stream_Dat.Write(ExtensionsHeader[i], SizeOf(ExtensionsHeader[i]));

  if (Stream_Dat.Size mod 32) > 0 then
    Stream_Dat.Write(EmptyBytes[0], 32 - (Stream_Dat.Size mod 32));

  DatHeader.DataSize  := Stream_Body.Size;
  DatHeader.NamesSize := Stream_Names.Size;
  DatHeader.DataAddr  := Stream_Dat.Size;

  Stream_Body.Seek(0, soFromBeginning);
  Stream_Dat.CopyFrom(Stream_Body, Stream_Body.Size);

  if (Stream_Dat.Size mod 32) > 0 then
    Stream_Dat.Write(EmptyBytes[0], 32 - (Stream_Dat.Size mod 32));

  DatHeader.NamesAddr := Stream_Dat.Size;
  Stream_Names.Seek(0, soFromBeginning);
  Stream_Dat.CopyFrom(Stream_Names, Stream_Names.Size);

  Stream_Dat.Seek(0, soFromBeginning);
  Stream_Dat.Write(DatHeader, SizeOf(DatHeader));

  Stream_Dat.Free;
  Stream_Body.Free;
  Stream_Names.Free;
  Stream_Raw.Free;

  if Connection.DataOS in [DOS_WINDEMO, DOS_MAC, DOS_MACBETA] then
    Stream_Sep.Free;

  progress.Position      := progress.Max;
  lbl_progress.Caption   := 'Files done: ' + IntToStr(progress.Max) + '/' +
    IntToStr(progress.Max);
  lbl_estimation.Caption := 'FINISHED (duration: ' + TimeToStr(Time - Begintime, TimeFormat) + ')';

  DoStep('FIN');
  btn_abortok.Caption := '&OK';
  btn_abortok.Default := True;

  converting := False;

//  CloseDataConnection(DataConnections[conIndex]);
end;




procedure TForm_LevelDB.CreateDatabase(Source, target: String);
var
  DataBase:  TABSDatabase;
  Query:     TABSQuery;
  MimeCoder: TStringFormat_MIME64;

  BeginTime, FileTime: Double;
  Step:       Integer;
  TimeFormat: TFormatSettings;

  ConID:      Integer;
  Connection: TDataAccess;
  ConRepMsg:  TStatusMessages;

  FileID:     Integer;

  i:          Integer;
  temps:      String;
  tempdata:   TByteData;
  FileInfo:   TFileInfo;
  DatLinks:   TDatLinkList;
  RawLinks:   TRawDataList;
const
  steps: Byte = 2;

  procedure DoStep(stepname: String);
  begin
    Inc(step);
    if stepname <> 'FIN' then
      group_progress.Caption :=
        'Creating DB (Step ' + IntToStr(step) + '/' + IntToStr(steps) + ': ' + stepname + ')'
    else
      group_progress.Caption := 'Creating DB (FINISHED)';
  end;

  procedure StopConvert;
  begin
    btn_abortok.Caption := '&Close';
    btn_abortok.Default := True;
    converting := False;
    lbl_estimation.Caption := 'ABORTED';
    group_progress.Caption := 'Creating DB (ABORTED)';
    DataBase.Close;
    if MessageBox(Self.Handle, PChar('Delete the unfinished DB-file?'),
      PChar('Delete file?'), MB_YESNO) = idYes then
    begin
      DeleteFile(target);
    end;
  end;



begin

  //
  // FILE EXISTS CHECK FÜR DAT/RAW/SEP!!!
  //

  TimeFormat.ShortTimeFormat := 'hh:nn:ss';
  TimeFormat.LongTimeFormat  := 'hh:nn:ss';
  TimeFormat.TimeSeparator   := ':';

  ConID := ConManager.OpenConnection(Source, ConRepMsg);
  if not (ConRepMsg in [SM_OK, SM_AlreadyOpened]) then
  begin
    ShowMessage('Source-file couldn''t be opened! Aborting' + CrLf + GetOpenMsg(ConRepMsg));
    Exit;
  end else
    Connection := ConManager.Connection[ConID];

  ConID := ConManager.FileOpened(Target);
  if ConID >= 0 then
  begin
    if MessageBox(Self.Handle, PChar('Destination-file is opened, close it in ' +
          'order to proceed conversion?'), PChar('Destination-file opened'),
          MB_YESNO + MB_ICONQUESTION) = ID_YES then
    begin
      if Form_Main.CheckConnectionCloseable(ConID) then
        if not ConManager.CloseConnection(ConID, ConRepMsg) then
        begin
          ShowMessage('Couldn''t close destination-file. Aborting');
          Exit;
        end;
    end else begin
      ShowMessage('Aborting');
      Exit;
    end;
  end;

  if FileExists(Target) then
  begin
    if MessageBox(Self.Handle, PChar('Destination-file exists. ' +
          'Overwrite it?'), PChar('Destination-file exists'),
          MB_YESNO + MB_ICONWARNING) = ID_YES then
    begin
      if not DeleteFile(Target) then
      begin
        ShowMessage('Couldn''t delete file. Aborting');
        Exit;
      end;
    end else begin
      ShowMessage('Aborting');
      Exit;
    end;
  end;

  Self.Visible := True;
  Form_Main.Visible := False;
  step  := 0;
  converting := True;
  abort := False;
  btn_abortok.Caption := '&Abort...';
  btn_abortok.Default := False;

  BeginTime := Time;

  DataBase := TABSDatabase.Create(Self);
  DataBase.MaxConnections := 1;
  DataBase.PageSize := 8112;
  DataBase.PageCountInExtent := 8;

  DataBase.DatabaseName := 'OLDB';
  DataBase.DatabaseFileName := target;
  DataBase.CreateDatabase;

  DoStep('Creating tables');
  progress.Position      := 0;
  lbl_progress.Caption   := '';
  lbl_estimation.Caption := 'Estimated finishing time: unknown';
  Application.ProcessMessages;

  Query := TABSQuery.Create(Self);
  Query.DatabaseName := 'OLDB';
  Query.SQL.Text :=
    'CREATE TABLE globals  ( id AUTOINC PRIMARY KEY, name STRING(128), ' +
    'value STRING(128) );';
  Query.ExecSQL;
  Query.SQL.Text :=
    'CREATE TABLE linkmap  ( id AUTOINC PRIMARY KEY, src_id INTEGER, ' +
    'src_link_offset INTEGER, target_id INTEGER);';
  Query.ExecSQL;
  Query.SQL.Text := 'CREATE INDEX idsrcid ON linkmap (src_id);';
  Query.ExecSQL;
  Query.SQL.Text := 'CREATE INDEX idtargetid ON linkmap (target_id);';
  Query.ExecSQL;
  Query.SQL.Text :=
    'CREATE TABLE rawmap  ( id AUTOINC PRIMARY KEY, name STRING(32), src_id INTEGER, ' +
    'src_link_offset INTEGER, sep BOOLEAN, type STRING(8), size INTEGER, ' +
    'data BLOB BlobCompressionMode 9 BlobBlockSize 1024 BlobCompressionAlgorithm ZLib);';
  //    Query.SQL.Text:='CREATE TABLE rawmap  ( id AUTOINC PRIMARY KEY, src_id INTEGER, src_link_offset INTEGER, size INTEGER, data BLOB BlobCompressionAlgorithm None );';
  Query.ExecSQL;
  Query.SQL.Text := 'CREATE INDEX idsrcid ON rawmap (src_id);';
  Query.ExecSQL;
  Query.SQL.Text := 'CREATE INDEX idtype ON rawmap (type);';
  Query.ExecSQL;
  Query.SQL.Text :=
    'CREATE TABLE datfiles  ( id INTEGER PRIMARY KEY, extension CHAR(4), ' +
    'name STRING(128), contenttype INTEGER, size INTEGER, ' +
    'data BLOB BlobCompressionMode 9 BlobBlockSize 1024 BlobCompressionAlgorithm ZLib );';
  //    Query.SQL.Text:='CREATE TABLE datfiles  ( id INTEGER PRIMARY KEY, extension CHAR(4), name STRING(128), contenttype INTEGER, size INTEGER, data BLOB BlobCompressionAlgorithm None );';
  Query.ExecSQL;
//  Query.SQL.Text :=
//    'CREATE TABLE extlist  ( id AUTOINC PRIMARY KEY, ext CHAR(4), ident CHAR(16) );';
//  Query.ExecSQL;

  Query.SQL.Text := 'INSERT INTO globals (name,value) VALUES ("dbversion","' +
    dbversion + '");';
  Query.ExecSQL;

  Query.SQL.Text := 'INSERT INTO globals (name,value) VALUES ("lvl","' +
    IntToStr(Connection.LevelNumber) + '");';
  Query.ExecSQL;
  case Connection.DataOS of
    DOS_WIN: temps := 'WIN';
    DOS_WINDEMO: temps := 'WINDEMO';
    DOS_MAC: temps := 'MAC';
    DOS_MACBETA: temps := 'MACBETA';
  end;
  Query.SQL.Text := 'INSERT INTO globals (name,value) VALUES ("os","' + temps + '");';
  Query.ExecSQL;

  progress.Position      := 0;
  lbl_progress.Caption   := 'Files done: ' + IntToStr(0) + '/' + IntToStr(
    Connection.GetFileCount);
  lbl_estimation.Caption := 'Estimated finishing time: unknown';

  progress.Max := Connection.GetFileCount;
  begintime    := Time;
  DoStep('Writing .dat-fileslist');
  Application.ProcessMessages;

  FileTime := Time;
  Database.StartTransaction;
  for FileID := 0 to Connection.GetFileCount - 1 do
  begin
    fileinfo := Connection.GetFileInfo(FileID);
    if (fileinfo.FileType and $02) = 0 then
    begin
      mimecoder := TStringFormat_MIME64.Create;
      Connection.LoadDatFile(FileID, tempdata);
      Query.SQL.Text :=
        'INSERT INTO datfiles (id,extension,name,contenttype,size,data) VALUES (' +
        IntToStr(FileID) + ',"' + fileinfo.Extension + '","' + fileinfo.Name + '","' + IntToHex(
        fileinfo.FileType, 8) + '",' + IntToStr(fileinfo.Size) + ',MimeToBin("' +
        MimeCoder.StrTo(@tempdata[0], Length(tempdata)) + '") );';
      Query.ExecSQL;
      mimecoder.Free;

      RawLinks := Connection.GetRawList(FileID);
      if Length(RawLinks) > 0 then
      begin
        for i := 0 to High(RawLinks) do
        begin
          if RawLinks[i].RawSize > 0 then
          begin
            SetLength(tempdata, RawLinks[i].RawSize);
            Connection.LoadRawFile(FileID, RawLinks[i].SrcOffset, tempdata);
            mimecoder      := TStringFormat_MIME64.Create;
            Query.SQL.Text :=
              'INSERT INTO rawmap (name,src_id,src_link_offset,sep,type,size,data) VALUES (' +
              '"' + RawLinks[i].Name + '", ' +
              IntToStr(FileID) + ', ' + IntToStr(RawLinks[i].SrcOffset) + ',' +
              BoolToStr(RawLinks[i].LocSep) + ', ' +
              '"' + RawLinks[i].RawType + '", ' +
              IntToStr(RawLinks[i].RawSize) + ', ' +
              'MimeToBin("' + MimeCoder.StrTo(@tempdata[0], RawLinks[i].RawSize) + '") );';
            Query.ExecSQL;
            mimecoder.Free;
          end
          else
          begin
            Query.SQL.Text :=
              'INSERT INTO rawmap (name,src_id,src_link_offset,sep,type,size) VALUES (' +
              '"' + RawLinks[i].Name + '", ' +
              IntToStr(FileID) + ', ' + IntToStr(RawLinks[i].SrcOffset) + ', ' +
              BoolToStr(RawLinks[i].LocSep) + ', ' +
              '"' + RawLinks[i].RawType + '", ' +
              '0);';
            Query.ExecSQL;
          end;
        end;
      end;

      DatLinks := Connection.GetDatLinks(FileID);
      if Length(DatLinks) > 0 then
      begin
        for i := 0 to High(DatLinks) do
        begin
          Query.SQL.Text :=
            'INSERT INTO linkmap (src_id, src_link_offset, target_id) VALUES (' +
            IntToStr(FileID) + ', ' + IntToStr(DatLinks[i].SrcOffset) + ', ' +
            IntToStr(DatLinks[i].DestID) + ');';
          Query.ExecSQL;
        end;
      end;
    end
    else
    begin
      Query.SQL.Text :=
        'INSERT INTO datfiles (id,extension,name,contenttype,size) VALUES (' +
        IntToStr(FileID) + ', "' + fileinfo.Extension + '", ' +
        '"' + fileinfo.Name + '", "' + IntToHex(fileinfo.FileType, 8) + '", 0);';
      Query.ExecSQL;
    end;
    if ((FileID mod 100) = 0) and (FileID > 0) then
    begin
      Database.Commit(False);
      Database.StartTransaction;
    end;
    if ((FileID mod 10) = 0) and (FileID >= 100) then
      lbl_estimation.Caption := 'Estimated time left: ' + TimeToStr(
        (Time - FileTime) / FileID * (progress.Max - FileID + 1) * 1.1, timeformat );
    progress.Position := FileID;
    lbl_progress.Caption := 'Files done: ' + IntToStr(FileID) + '/' + IntToStr(progress.Max);
    Application.ProcessMessages;
    if abort then
    begin
      StopConvert;
      Exit;
    end;
  end;
  Database.Commit(False);
  progress.Position      := progress.Max;
  lbl_progress.Caption   := 'Files done: ' + IntToStr(progress.Max) + '/' +
    IntToStr(progress.Max);

  lbl_estimation.Caption := 'FINISHED (duration: ' + TimeToStr(Time - BeginTime, timeformat) + ')';

  DoStep('FIN');
  btn_abortok.Caption := '&OK';
  btn_abortok.Default := True;

  converting := False;

  Query.Close;
  Query.Free;
  DataBase.Close;
  DataBase.Free;
end;




procedure TForm_LevelDB.btn_abortokClick(Sender: TObject);
begin
  if converting then
  begin
    if MessageBox(Self.Handle,
      PChar('Do you really want to cancel the convert-progress?'),
      PChar('Warning: Converting'), MB_YESNO) = idYes then
      abort := True;
  end
  else
  begin
    Self.Visible := False;
    Form_Main.Visible  := True;
  end;
end;


end.