releases/0.20a/Unit2_functions.pas

UNIT Unit2_functions;
INTERFACE
USES Classes, Dialogs, SysUtils, StrUtils, Math, SQLiteTable3,
      Unit3_data, Unit4_Exporters;

TYPE
  TExportSet=SET OF (DO_dat,DO_raw,DO_convert,DO_toone);

FUNCTION GetFilesList(ext:String; pattern:String; NoEmptyFiles:Boolean):TStringList;
FUNCTION GetExtensionsList:TStringList;

FUNCTION Decode_Int(buffer:Tdata):LongWord;
FUNCTION Encode_Int(input:LongWord):Tdata;
FUNCTION Decode_Float(buffer:Tdata):Single;
FUNCTION Encode_Float(input:Single):Tdata;

FUNCTION LoadDatInfos(filename:String):Boolean;
PROCEDURE OpenDatabase(FileName:String);

FUNCTION LoadDatFile(fileid:LongWord):Tdata;
PROCEDURE UpdateDatFile(fileid:LongWord; data:Tdata);
FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
FUNCTION UpdateDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;

FUNCTION LoadRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
FUNCTION UpdateRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;

FUNCTION ExportFile(fileid:LongWord; filename:String; settings:TExportSet; path:String):Integer;

FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
FUNCTION FormatFileSize(size:LongWord):String;
FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
FUNCTION GetWinFileName(name:String):String;
FUNCTION GetExtractPath:String;


IMPLEMENTATION

TYPE
  TValueSwitcher=Record
    CASE IsFloat: Boolean OF
      True: (ValueFloat:Single);
      False: (ValueInt:LongWord);
  END;

FUNCTION Decode_Int(buffer:Tdata):LongWord;
  BEGIN
    Result:=buffer[0]+buffer[1]*256+buffer[2]*256*256+buffer[3]*256*256*256;
  END;
FUNCTION Encode_Int(input:LongWord):Tdata;
  BEGIN
    Result[0]:=input MOD 256;
    input:=input DIV 256;
    Result[1]:=input MOD 256;
    input:=input DIV 256;
    Result[2]:=input MOD 256;
    input:=input DIV 256;
    Result[3]:=input MOD 256;
  END;
FUNCTION Decode_Float(buffer:Tdata):Single;
  VAR _valueswitcher:TValueSwitcher;
  BEGIN
    _valueswitcher.ValueInt:=Decode_Int(buffer);
    Result:=_valueswitcher.ValueFloat;
  END;
FUNCTION Encode_Float(input:Single):Tdata;
  VAR _valueswitcher:TValueSwitcher;
  BEGIN
    _valueswitcher.ValueFloat:=input;
    Result:=Encode_Int(_valueswitcher.ValueInt);
  END;


FUNCTION GetFilesList(ext:String; pattern:String; NoEmptyFiles:Boolean):TStringList;
  VAR
    i:LongWord;
    where:String;
    Tbl:TSQLiteTable;
  BEGIN
    SetLength(Result,0);
    IF opened_state=opened_dat THEN BEGIN
      FOR i:=0 TO dat_header.Files-1 DO BEGIN
        IF ( (Length(ext)=0) OR (dat_files[i].Extension=ext) ) AND
             ( (Length(pattern)=0) OR (Pos(pattern,dat_files[i].Name)>0) ) THEN BEGIN
          IF NoEmptyFiles THEN BEGIN
            IF (dat_files[i].FileType AND $02)=0 THEN BEGIN
              SetLength(Result,Length(Result)+1);
              Result[High(Result)]:=dat_files[i].FileName;
            END;
          END ELSE BEGIN
            SetLength(Result,Length(Result)+1);
            Result[High(Result)]:=dat_files[i].FileName;
          END;
        END;
      END;
    END ELSE BEGIN
      where:='';
      IF Length(ext)>0 THEN BEGIN
        IF Length(where)>0 THEN where:=where+' AND ';
        where:=where+'(extension="'+ext+'")';
      END;
      IF Length(pattern)>0 THEN BEGIN
        IF Length(where)>0 THEN where:=where+' AND ';
        where:=where+'(name LIKE "%'+pattern+'%")';
      END;
      IF NoEmptyFiles THEN BEGIN
        IF Length(where)>0 THEN where:=where+' AND ';
        where:=where+'((contenttype & 2)=0)';
      END;
      IF Length(where)>0 THEN where:=' WHERE '+where;
      Tbl:=DB.GetTable('SELECT id,name,extension FROM datfiles'+where+' ORDER BY id ASC;');
      IF Tbl.Count>0 THEN BEGIN
        SetLength(Result,Tbl.Count);
        i:=0;
        REPEAT
          Result[i]:=FormatNumber(Tbl.FieldAsInteger('id'),5,'0')+'-'+Tbl.FieldAsString('name')+'.'+Tbl.FieldAsString('extension');
          Inc(i);
          Tbl.Next;
        UNTIL Tbl.EOF;
      END;
    END;
  END;

FUNCTION GetExtensionsList:TStringList;
  VAR
    i:LongWord;
    Tbl:TSQLiteTable;
  BEGIN
    SetLength(Result,0);
    IF opened_state=opened_dat THEN BEGIN
      FOR i:=0 TO dat_header.Extensions-1 DO BEGIN
        SetLength(Result,Length(Result)+1);
        WITH dat_extensionsmap[i] DO BEGIN
          Result[High(Result)]:=Extension[3]+Extension[2]+Extension[1]+Extension[0]+' ('+IntToStr(ExtCount)+')';
        END;
      END;
    END ELSE BEGIN
      Tbl:=DB.GetTable('SELECT extension,count(extension) AS x FROM datfiles GROUP BY extension ORDER BY extension ASC;');
      IF Tbl.Count>0 THEN BEGIN
        SetLength(Result,Tbl.Count);
        i:=0;
        REPEAT
          Result[i]:=Tbl.FieldAsString('extension')+' ('+IntToStr(Tbl.FieldAsInteger('x'))+')';
          Inc(i);
          Tbl.Next;
        UNTIL Tbl.EOF;
      END;
    END;
  END;

FUNCTION LoadDatInfos(filename:String):Boolean;
  VAR i:LongWord;
    dat_file:TFileStream;
  BEGIN
    Result:=True;
    opened_state:=opened_dat;
    dat_filename:=filename;
    raw_filename:=MidStr(filename,1,Length(filename)-3)+'raw';
    dat_file:=TFileStream.Create(filename, fmOpenRead);
    dat_file.Read(dat_header,SizeOf(dat_header));
    FOR i:=0 TO High(dat_header.Ident) DO
      IF dat_header.Ident[i]<>header_ident1[i] THEN BEGIN
        Result:=False;
        Exit;
      END;
    SetLength(dat_filesmap,dat_header.Files);
    SetLength(dat_files,dat_header.Files);
    FOR i:=0 TO dat_header.Files-1 DO dat_file.Read(dat_filesmap[i],SizeOf(dat_filesmap[i]));
    FOR i:=0 TO dat_header.Files-1 DO BEGIN
      dat_files[i].Extension:=dat_filesmap[i].Extension;
      dat_files[i].Extension:=ReverseString(dat_files[i].Extension);
      dat_files[i].Size:=dat_filesmap[i].FileSize;
      dat_files[i].FileType:=dat_filesmap[i].FileType;
      dat_files[i].DatAddr:=dat_filesmap[i].DataAddr-8+dat_header.DataAddr;
      IF (dat_filesmap[i].FileType AND $01)=0 THEN BEGIN
        dat_file.Seek(dat_filesmap[i].NameAddr+dat_header.NamesAddr,soFromBeginning);
        SetLength(dat_files[i].Name,100);
        dat_file.Read(dat_files[i].Name[1],100);
        dat_files[i].Name:=MidStr(dat_files[i].Name,1+4,Pos(#0,dat_files[i].Name)-1-4);
      END ELSE BEGIN
        dat_files[i].Name:='';
      END;
      dat_files[i].FileName:=FormatNumber(i,5,'0')+'-'+dat_files[i].Name+'.'+dat_files[i].Extension;
    END;
    dat_file.Seek($40+dat_header.Files*$14,soFromBeginning);
    SetLength(dat_namedfilesmap,dat_header.NamedFiles);
    FOR i:=0 TO dat_header.NamedFiles-1 DO dat_file.Read(dat_namedfilesmap[i],SizeOf(dat_namedfilesmap[i]));

    dat_file.Seek($40+dat_header.Files*$14+dat_header.NamedFiles*$8,soFromBeginning);
    SetLength(dat_extensionsmap,dat_header.Extensions);
    FOR i:=0 TO dat_header.Extensions-1 DO dat_file.Read(dat_extensionsmap[i],SizeOf(dat_extensionsmap[i]));

    dat_file.Free;
  END;


FUNCTION LoadDatFile(fileid:LongWord):Tdata;
  VAR
    dat_file:TFileStream;
    Tbl:TSQLiteTable;
    mem:TMemoryStream;
  BEGIN
    IF opened_state=opened_dat THEN BEGIN
      dat_file:=TFileStream.Create(dat_filename, fmOpenRead);
      dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning);
      SetLength(Result,dat_files[fileid].Size);
      dat_file.Read(Result[0],dat_files[fileid].Size);
      dat_file.Free;
    END ELSE BEGIN
      Tbl:=DB.GetTable('SELECT data FROM datfiles WHERE id='+IntToStr(fileid)+';');
      IF Tbl.Count>0 THEN BEGIN
        mem:=Tbl.FieldAsBlob('data');
        SetLength(Result,mem.Size);
        mem.Seek(0,soFromBeginning);
        mem.Read(Result[0],mem.Size);
        mem.Free;
      END;
    END;
  END;
PROCEDURE UpdateDatFile(fileid:LongWord; data:Tdata);
  VAR
    dat_file:TFileStream;
    Tbl:TSQLiteTable;
  BEGIN
    IF opened_state=opened_dat THEN BEGIN
      dat_file:=TFileStream.Create(dat_filename, fmOpenReadWrite);
      dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning);
      dat_file.Write(data[0],Length(data));
      dat_file.Free;
    END ELSE BEGIN
    END;
  END;

FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
  VAR
    dat_file:TFileStream;
    Tbl:TSQLiteTable;
    mem:TMemoryStream;
  BEGIN
    IF opened_state=opened_dat THEN BEGIN
      dat_file:=TFileStream.Create(dat_filename, fmOpenRead);
      Result:=True;
      dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning);
      dat_file.Read(target^,size);
      dat_file.Free;
    END ELSE BEGIN
      Tbl:=DB.GetTable('SELECT data FROM datfiles WHERE id='+IntToStr(fileid)+';');
      IF Tbl.Count>0 THEN BEGIN
        Result:=True;
        mem:=Tbl.FieldAsBlob('data');
        mem.Seek(offset,soFromBeginning);
        mem.Read(target^,size);
        mem.Free;
      END;
    END;
  END;
FUNCTION UpdateDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
  VAR
    dat_file:TFileStream;
    Tbl:TSQLiteTable;
  BEGIN
    IF opened_state=opened_dat THEN BEGIN
      dat_file:=TFileStream.Create(dat_filename, fmOpenReadWrite);
      Result:=True;
      dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning);
      dat_file.Write(target^,size);
      dat_file.Free;
    END ELSE BEGIN
    END;
  END;

FUNCTION LoadRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
  VAR
    filestream:TFileStream;
    raw_addr:LongWord;
    Tbl:TSQLiteTable;
    mem:TMemoryStream;
  BEGIN
    IF opened_state=opened_dat THEN BEGIN
      Result:=True;
      LoadDatFilePart(fileid,datlinkoffset,4,@raw_addr);
      filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenRead);
      filestream.Seek(raw_addr,soFromBeginning);
      filestream.Read(target^,size);
      filestream.Free;
    END ELSE BEGIN
      Tbl:=DB.GetTable('SELECT data FROM rawmap WHERE (src_id='+IntToStr(fileid)+') AND (src_link_offset='+IntToStr(datlinkoffset)+');');
      IF Tbl.Count>0 THEN BEGIN
        Result:=True;
        mem:=Tbl.FieldAsBlob('data');
        mem.Seek(0,soFromBeginning);
        mem.Read(target^,size);
        mem.Free;
      END;
    END;
  END;
FUNCTION UpdateRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
  VAR
    filestream:TFileStream;
    raw_addr:LongWord;
  BEGIN
    IF opened_state=opened_dat THEN BEGIN
      Result:=True;
      LoadDatFilePart(fileid,datlinkoffset,4,@raw_addr);
      filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenReadWrite);
      filestream.Seek(raw_addr,soFromBeginning);
      filestream.Write(target^,size);
      filestream.Free;
    END ELSE BEGIN
    END;
  END;


FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
  BEGIN
    Result:=AnsiReplaceStr(Format('%'+IntToStr(width)+'u',[value]),' ',leadingzeros);
  END;

FUNCTION FormatFileSize(size:LongWord):String;
  BEGIN
    IF size>=1000*1024*1024 THEN BEGIN
      Result:=FloatToStrF(size/1024/1024/1024,ffFixed,5,1)+' GB';
    END ELSE BEGIN
      IF size>=1000*1024 THEN BEGIN
        Result:=FloatToStrF(size/1024/1024,ffFixed,5,1)+' MB';
      END ELSE BEGIN
        IF size>=1000 THEN BEGIN
          Result:=FloatToStrF(size/1024,ffFixed,5,1)+' KB';
        END ELSE BEGIN
          Result:=IntToStr(size)+' B';
        END;
      END;
    END;
  END;

FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
  VAR
    string_build,ascii_version:String;
    i:LongWord;
  BEGIN
    string_build:='';
    ascii_version:='';
    FOR i:=0 TO High(data) DO BEGIN
      IF NOT HexOnly THEN
        IF (i MOD 16)=0 THEN
          string_build:=string_build+'0x'+IntToHex(i,6)+'  ';
      string_build:=string_build+IntToHex(data[i],2);
      IF NOT HexOnly THEN BEGIN
        IF data[i]>=32 THEN ascii_version:=ascii_version+Chr(data[i])
        ELSE ascii_version:=ascii_version+'.';
        IF ((i+1) MOD 2)=0 THEN string_build:=string_build+#32;
        IF ((i+1) MOD 16)=0 THEN BEGIN
          string_build:=string_build+#32+ascii_version+CrLf;
          ascii_version:='';
        END;
      END;
    END;
    Result:=string_build;
  END;


FUNCTION ExportFile(fileid:LongWord; filename:String; settings:TExportSet; path:String):Integer;
  VAR
    i:Byte;
    extension:String;
  BEGIN
    Result:=export_noerror;
    extension:=RightStr(filename,4);
    IF DO_dat IN settings THEN ExportDatFile(fileid,path+'\'+GetWinFileName(filename));
    IF DO_raw IN settings THEN BEGIN
      FOR i:=1 TO Length(ExportHandlers)+1 DO BEGIN
        IF i<=Length(ExportHandlers) THEN BEGIN
          IF ExportHandlers[i].Ext=extension THEN BEGIN
            IF ExportHandlers[i].needed THEN BEGIN
              CASE ExportHandlers[i].Handler(fileid,path+'\'+GetWinFileName(filename),(DO_convert IN settings)) OF
                0: Result:=0;
              ELSE
                Result:=export_handlererror;
              END;
            END;
            Break;
          END;
        END ELSE BEGIN
          Result:=export_nohandler;
        END;
      END;
    END;
  END;


FUNCTION GetWinFileName(name:String):String;
  BEGIN
    Result:=name;
    Result:=AnsiReplaceStr(Result,'\','__');
    Result:=AnsiReplaceStr(Result,'/','__');
    Result:=AnsiReplaceStr(Result,'>','__');
    Result:=AnsiReplaceStr(Result,'<','__');
  END;

FUNCTION GetExtractPath:String;
  BEGIN
    Result:=ExtractFilePath(dat_filename)+'\extracted_'+ExtractFileName(dat_filename);
  END;


PROCEDURE OpenDatabase(FileName:String);
  VAR
    i:Byte;
    data:Tdata;
    temps:String;
    Tbl: TSQLiteTable;
  BEGIN
    IF NOT FileExists(FileName) THEN BEGIN
      ShowMessage('File doesn''t exist!!!');
      Exit;
    END;
    DB:=TSQLiteDatabase.Create(FileName);
    Tbl:=DB.GetTable('SELECT name,value FROM globals ORDER BY name ASC');
    REPEAT
      IF Tbl.FieldAsString('name')='dbversion' THEN BEGIN
        IF Tbl.FieldAsString('value')<>DBversion THEN BEGIN
          ShowMessage('Database-file '+CrLf+'"'+FileName+'"'+CrLf+'has wrong version. (Required: '+DBversion+'; found: '+Tbl.FieldAsString('value')+')');
          Exit;
        END;
      END;
      IF Tbl.FieldAsString('name')='lvl' THEN BEGIN
        database_level:=StrToInt(Tbl.FieldAsString('value'));
      END;
      IF Tbl.FieldAsString('name')='ident' THEN BEGIN
        temps:=Tbl.FieldAsString('value');
        FOR i:=0 TO High(database_ident) DO BEGIN
          CASE temps[(i*2)+1+0] OF
            '0'..'9': database_ident[i]:=Ord(temps[(i*2)+1+0])-48;
            'A'..'F': database_ident[i]:=Ord(temps[(i*2)+1+0])-55;
          END;
          database_ident[i]:=database_ident[i]*16;
          CASE temps[(i*2)+1+1] OF
            '0'..'9': database_ident[i]:=database_ident[i]+Ord(temps[(i*2)+1+0])-48;
            'A'..'F': database_ident[i]:=database_ident[i]+Ord(temps[(i*2)+1+0])-55;
          END;
        END;
      END;
      Tbl.Next;
    UNTIL Tbl.EOF;
    Tbl.Free;
    opened_state:=opened_db;
  END;


END.
Revision:	21
Committed:	Sat Aug 26 19:11:49 2006 UTC (19 years, 2 months ago) by alloc
Content type:	text/x-pascal
File size:	15379 byte(s)
Log Message:
#	Content
1	UNIT Unit2_functions;
2	INTERFACE
3	USES Classes, Dialogs, SysUtils, StrUtils, Math, SQLiteTable3,
4	Unit3_data, Unit4_Exporters;
5
6	TYPE
7	TExportSet=SET OF (DO_dat,DO_raw,DO_convert,DO_toone);
8
9	FUNCTION GetFilesList(ext:String; pattern:String; NoEmptyFiles:Boolean):TStringList;
10	FUNCTION GetExtensionsList:TStringList;
11
12	FUNCTION Decode_Int(buffer:Tdata):LongWord;
13	FUNCTION Encode_Int(input:LongWord):Tdata;
14	FUNCTION Decode_Float(buffer:Tdata):Single;
15	FUNCTION Encode_Float(input:Single):Tdata;
16
17	FUNCTION LoadDatInfos(filename:String):Boolean;
18	PROCEDURE OpenDatabase(FileName:String);
19
20	FUNCTION LoadDatFile(fileid:LongWord):Tdata;
21	PROCEDURE UpdateDatFile(fileid:LongWord; data:Tdata);
22	FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
23	FUNCTION UpdateDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
24
25	FUNCTION LoadRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
26	FUNCTION UpdateRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
27
28	FUNCTION ExportFile(fileid:LongWord; filename:String; settings:TExportSet; path:String):Integer;
29
30	FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
31	FUNCTION FormatFileSize(size:LongWord):String;
32	FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
33	FUNCTION GetWinFileName(name:String):String;
34	FUNCTION GetExtractPath:String;
35
36
37	IMPLEMENTATION
38
39	TYPE
40	TValueSwitcher=Record
41	CASE IsFloat: Boolean OF
42	True: (ValueFloat:Single);
43	False: (ValueInt:LongWord);
44	END;
45
46	FUNCTION Decode_Int(buffer:Tdata):LongWord;
47	BEGIN
48	Result:=buffer[0]+buffer[1]256+buffer[2]256256+buffer[3]256256256;
49	END;
50	FUNCTION Encode_Int(input:LongWord):Tdata;
51	BEGIN
52	Result[0]:=input MOD 256;
53	input:=input DIV 256;
54	Result[1]:=input MOD 256;
55	input:=input DIV 256;
56	Result[2]:=input MOD 256;
57	input:=input DIV 256;
58	Result[3]:=input MOD 256;
59	END;
60	FUNCTION Decode_Float(buffer:Tdata):Single;
61	VAR _valueswitcher:TValueSwitcher;
62	BEGIN
63	_valueswitcher.ValueInt:=Decode_Int(buffer);
64	Result:=_valueswitcher.ValueFloat;
65	END;
66	FUNCTION Encode_Float(input:Single):Tdata;
67	VAR _valueswitcher:TValueSwitcher;
68	BEGIN
69	_valueswitcher.ValueFloat:=input;
70	Result:=Encode_Int(_valueswitcher.ValueInt);
71	END;
72
73
74	FUNCTION GetFilesList(ext:String; pattern:String; NoEmptyFiles:Boolean):TStringList;
75	VAR
76	i:LongWord;
77	where:String;
78	Tbl:TSQLiteTable;
79	BEGIN
80	SetLength(Result,0);
81	IF opened_state=opened_dat THEN BEGIN
82	FOR i:=0 TO dat_header.Files-1 DO BEGIN
83	IF ( (Length(ext)=0) OR (dat_files[i].Extension=ext) ) AND
84	( (Length(pattern)=0) OR (Pos(pattern,dat_files[i].Name)>0) ) THEN BEGIN
85	IF NoEmptyFiles THEN BEGIN
86	IF (dat_files[i].FileType AND $02)=0 THEN BEGIN
87	SetLength(Result,Length(Result)+1);
88	Result[High(Result)]:=dat_files[i].FileName;
89	END;
90	END ELSE BEGIN
91	SetLength(Result,Length(Result)+1);
92	Result[High(Result)]:=dat_files[i].FileName;
93	END;
94	END;
95	END;
96	END ELSE BEGIN
97	where:='';
98	IF Length(ext)>0 THEN BEGIN
99	IF Length(where)>0 THEN where:=where+' AND ';
100	where:=where+'(extension="'+ext+'")';
101	END;
102	IF Length(pattern)>0 THEN BEGIN
103	IF Length(where)>0 THEN where:=where+' AND ';
104	where:=where+'(name LIKE "%'+pattern+'%")';
105	END;
106	IF NoEmptyFiles THEN BEGIN
107	IF Length(where)>0 THEN where:=where+' AND ';
108	where:=where+'((contenttype & 2)=0)';
109	END;
110	IF Length(where)>0 THEN where:=' WHERE '+where;
111	Tbl:=DB.GetTable('SELECT id,name,extension FROM datfiles'+where+' ORDER BY id ASC;');
112	IF Tbl.Count>0 THEN BEGIN
113	SetLength(Result,Tbl.Count);
114	i:=0;
115	REPEAT
116	Result[i]:=FormatNumber(Tbl.FieldAsInteger('id'),5,'0')+'-'+Tbl.FieldAsString('name')+'.'+Tbl.FieldAsString('extension');
117	Inc(i);
118	Tbl.Next;
119	UNTIL Tbl.EOF;
120	END;
121	END;
122	END;
123
124	FUNCTION GetExtensionsList:TStringList;
125	VAR
126	i:LongWord;
127	Tbl:TSQLiteTable;
128	BEGIN
129	SetLength(Result,0);
130	IF opened_state=opened_dat THEN BEGIN
131	FOR i:=0 TO dat_header.Extensions-1 DO BEGIN
132	SetLength(Result,Length(Result)+1);
133	WITH dat_extensionsmap[i] DO BEGIN
134	Result[High(Result)]:=Extension[3]+Extension[2]+Extension[1]+Extension[0]+' ('+IntToStr(ExtCount)+')';
135	END;
136	END;
137	END ELSE BEGIN
138	Tbl:=DB.GetTable('SELECT extension,count(extension) AS x FROM datfiles GROUP BY extension ORDER BY extension ASC;');
139	IF Tbl.Count>0 THEN BEGIN
140	SetLength(Result,Tbl.Count);
141	i:=0;
142	REPEAT
143	Result[i]:=Tbl.FieldAsString('extension')+' ('+IntToStr(Tbl.FieldAsInteger('x'))+')';
144	Inc(i);
145	Tbl.Next;
146	UNTIL Tbl.EOF;
147	END;
148	END;
149	END;
150
151	FUNCTION LoadDatInfos(filename:String):Boolean;
152	VAR i:LongWord;
153	dat_file:TFileStream;
154	BEGIN
155	Result:=True;
156	opened_state:=opened_dat;
157	dat_filename:=filename;
158	raw_filename:=MidStr(filename,1,Length(filename)-3)+'raw';
159	dat_file:=TFileStream.Create(filename, fmOpenRead);
160	dat_file.Read(dat_header,SizeOf(dat_header));
161	FOR i:=0 TO High(dat_header.Ident) DO
162	IF dat_header.Ident[i]<>header_ident1[i] THEN BEGIN
163	Result:=False;
164	Exit;
165	END;
166	SetLength(dat_filesmap,dat_header.Files);
167	SetLength(dat_files,dat_header.Files);
168	FOR i:=0 TO dat_header.Files-1 DO dat_file.Read(dat_filesmap[i],SizeOf(dat_filesmap[i]));
169	FOR i:=0 TO dat_header.Files-1 DO BEGIN
170	dat_files[i].Extension:=dat_filesmap[i].Extension;
171	dat_files[i].Extension:=ReverseString(dat_files[i].Extension);
172	dat_files[i].Size:=dat_filesmap[i].FileSize;
173	dat_files[i].FileType:=dat_filesmap[i].FileType;
174	dat_files[i].DatAddr:=dat_filesmap[i].DataAddr-8+dat_header.DataAddr;
175	IF (dat_filesmap[i].FileType AND $01)=0 THEN BEGIN
176	dat_file.Seek(dat_filesmap[i].NameAddr+dat_header.NamesAddr,soFromBeginning);
177	SetLength(dat_files[i].Name,100);
178	dat_file.Read(dat_files[i].Name[1],100);
179	dat_files[i].Name:=MidStr(dat_files[i].Name,1+4,Pos(#0,dat_files[i].Name)-1-4);
180	END ELSE BEGIN
181	dat_files[i].Name:='';
182	END;
183	dat_files[i].FileName:=FormatNumber(i,5,'0')+'-'+dat_files[i].Name+'.'+dat_files[i].Extension;
184	END;
185	dat_file.Seek($40+dat_header.Files*$14,soFromBeginning);
186	SetLength(dat_namedfilesmap,dat_header.NamedFiles);
187	FOR i:=0 TO dat_header.NamedFiles-1 DO dat_file.Read(dat_namedfilesmap[i],SizeOf(dat_namedfilesmap[i]));
188
189	dat_file.Seek($40+dat_header.Files$14+dat_header.NamedFiles$8,soFromBeginning);
190	SetLength(dat_extensionsmap,dat_header.Extensions);
191	FOR i:=0 TO dat_header.Extensions-1 DO dat_file.Read(dat_extensionsmap[i],SizeOf(dat_extensionsmap[i]));
192
193	dat_file.Free;
194	END;
195
196
197	FUNCTION LoadDatFile(fileid:LongWord):Tdata;
198	VAR
199	dat_file:TFileStream;
200	Tbl:TSQLiteTable;
201	mem:TMemoryStream;
202	BEGIN
203	IF opened_state=opened_dat THEN BEGIN
204	dat_file:=TFileStream.Create(dat_filename, fmOpenRead);
205	dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning);
206	SetLength(Result,dat_files[fileid].Size);
207	dat_file.Read(Result[0],dat_files[fileid].Size);
208	dat_file.Free;
209	END ELSE BEGIN
210	Tbl:=DB.GetTable('SELECT data FROM datfiles WHERE id='+IntToStr(fileid)+';');
211	IF Tbl.Count>0 THEN BEGIN
212	mem:=Tbl.FieldAsBlob('data');
213	SetLength(Result,mem.Size);
214	mem.Seek(0,soFromBeginning);
215	mem.Read(Result[0],mem.Size);
216	mem.Free;
217	END;
218	END;
219	END;
220	PROCEDURE UpdateDatFile(fileid:LongWord; data:Tdata);
221	VAR
222	dat_file:TFileStream;
223	Tbl:TSQLiteTable;
224	BEGIN
225	IF opened_state=opened_dat THEN BEGIN
226	dat_file:=TFileStream.Create(dat_filename, fmOpenReadWrite);
227	dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning);
228	dat_file.Write(data[0],Length(data));
229	dat_file.Free;
230	END ELSE BEGIN
231	END;
232	END;
233
234	FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
235	VAR
236	dat_file:TFileStream;
237	Tbl:TSQLiteTable;
238	mem:TMemoryStream;
239	BEGIN
240	IF opened_state=opened_dat THEN BEGIN
241	dat_file:=TFileStream.Create(dat_filename, fmOpenRead);
242	Result:=True;
243	dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning);
244	dat_file.Read(target^,size);
245	dat_file.Free;
246	END ELSE BEGIN
247	Tbl:=DB.GetTable('SELECT data FROM datfiles WHERE id='+IntToStr(fileid)+';');
248	IF Tbl.Count>0 THEN BEGIN
249	Result:=True;
250	mem:=Tbl.FieldAsBlob('data');
251	mem.Seek(offset,soFromBeginning);
252	mem.Read(target^,size);
253	mem.Free;
254	END;
255	END;
256	END;
257	FUNCTION UpdateDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
258	VAR
259	dat_file:TFileStream;
260	Tbl:TSQLiteTable;
261	BEGIN
262	IF opened_state=opened_dat THEN BEGIN
263	dat_file:=TFileStream.Create(dat_filename, fmOpenReadWrite);
264	Result:=True;
265	dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning);
266	dat_file.Write(target^,size);
267	dat_file.Free;
268	END ELSE BEGIN
269	END;
270	END;
271
272	FUNCTION LoadRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
273	VAR
274	filestream:TFileStream;
275	raw_addr:LongWord;
276	Tbl:TSQLiteTable;
277	mem:TMemoryStream;
278	BEGIN
279	IF opened_state=opened_dat THEN BEGIN
280	Result:=True;
281	LoadDatFilePart(fileid,datlinkoffset,4,@raw_addr);
282	filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenRead);
283	filestream.Seek(raw_addr,soFromBeginning);
284	filestream.Read(target^,size);
285	filestream.Free;
286	END ELSE BEGIN
287	Tbl:=DB.GetTable('SELECT data FROM rawmap WHERE (src_id='+IntToStr(fileid)+') AND (src_link_offset='+IntToStr(datlinkoffset)+');');
288	IF Tbl.Count>0 THEN BEGIN
289	Result:=True;
290	mem:=Tbl.FieldAsBlob('data');
291	mem.Seek(0,soFromBeginning);
292	mem.Read(target^,size);
293	mem.Free;
294	END;
295	END;
296	END;
297	FUNCTION UpdateRawFile(fileid,datlinkoffset,size:LongWord; target:Pointer):Boolean;
298	VAR
299	filestream:TFileStream;
300	raw_addr:LongWord;
301	BEGIN
302	IF opened_state=opened_dat THEN BEGIN
303	Result:=True;
304	LoadDatFilePart(fileid,datlinkoffset,4,@raw_addr);
305	filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenReadWrite);
306	filestream.Seek(raw_addr,soFromBeginning);
307	filestream.Write(target^,size);
308	filestream.Free;
309	END ELSE BEGIN
310	END;
311	END;
312
313
314	FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
315	BEGIN
316	Result:=AnsiReplaceStr(Format('%'+IntToStr(width)+'u',[value]),' ',leadingzeros);
317	END;
318
319	FUNCTION FormatFileSize(size:LongWord):String;
320	BEGIN
321	IF size>=100010241024 THEN BEGIN
322	Result:=FloatToStrF(size/1024/1024/1024,ffFixed,5,1)+' GB';
323	END ELSE BEGIN
324	IF size>=1000*1024 THEN BEGIN
325	Result:=FloatToStrF(size/1024/1024,ffFixed,5,1)+' MB';
326	END ELSE BEGIN
327	IF size>=1000 THEN BEGIN
328	Result:=FloatToStrF(size/1024,ffFixed,5,1)+' KB';
329	END ELSE BEGIN
330	Result:=IntToStr(size)+' B';
331	END;
332	END;
333	END;
334	END;
335
336	FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
337	VAR
338	string_build,ascii_version:String;
339	i:LongWord;
340	BEGIN
341	string_build:='';
342	ascii_version:='';
343	FOR i:=0 TO High(data) DO BEGIN
344	IF NOT HexOnly THEN
345	IF (i MOD 16)=0 THEN
346	string_build:=string_build+'0x'+IntToHex(i,6)+' ';
347	string_build:=string_build+IntToHex(data[i],2);
348	IF NOT HexOnly THEN BEGIN
349	IF data[i]>=32 THEN ascii_version:=ascii_version+Chr(data[i])
350	ELSE ascii_version:=ascii_version+'.';
351	IF ((i+1) MOD 2)=0 THEN string_build:=string_build+#32;
352	IF ((i+1) MOD 16)=0 THEN BEGIN
353	string_build:=string_build+#32+ascii_version+CrLf;
354	ascii_version:='';
355	END;
356	END;
357	END;
358	Result:=string_build;
359	END;
360
361
362	FUNCTION ExportFile(fileid:LongWord; filename:String; settings:TExportSet; path:String):Integer;
363	VAR
364	i:Byte;
365	extension:String;
366	BEGIN
367	Result:=export_noerror;
368	extension:=RightStr(filename,4);
369	IF DO_dat IN settings THEN ExportDatFile(fileid,path+'\'+GetWinFileName(filename));
370	IF DO_raw IN settings THEN BEGIN
371	FOR i:=1 TO Length(ExportHandlers)+1 DO BEGIN
372	IF i<=Length(ExportHandlers) THEN BEGIN
373	IF ExportHandlers[i].Ext=extension THEN BEGIN
374	IF ExportHandlers[i].needed THEN BEGIN
375	CASE ExportHandlers[i].Handler(fileid,path+'\'+GetWinFileName(filename),(DO_convert IN settings)) OF
376	0: Result:=0;
377	ELSE
378	Result:=export_handlererror;
379	END;
380	END;
381	Break;
382	END;
383	END ELSE BEGIN
384	Result:=export_nohandler;
385	END;
386	END;
387	END;
388	END;
389
390
391	FUNCTION GetWinFileName(name:String):String;
392	BEGIN
393	Result:=name;
394	Result:=AnsiReplaceStr(Result,'\','__');
395	Result:=AnsiReplaceStr(Result,'/','__');
396	Result:=AnsiReplaceStr(Result,'>','__');
397	Result:=AnsiReplaceStr(Result,'<','__');
398	END;
399
400	FUNCTION GetExtractPath:String;
401	BEGIN
402	Result:=ExtractFilePath(dat_filename)+'\extracted_'+ExtractFileName(dat_filename);
403	END;
404
405
406	PROCEDURE OpenDatabase(FileName:String);
407	VAR
408	i:Byte;
409	data:Tdata;
410	temps:String;
411	Tbl: TSQLiteTable;
412	BEGIN
413	IF NOT FileExists(FileName) THEN BEGIN
414	ShowMessage('File doesn''t exist!!!');
415	Exit;
416	END;
417	DB:=TSQLiteDatabase.Create(FileName);
418	Tbl:=DB.GetTable('SELECT name,value FROM globals ORDER BY name ASC');
419	REPEAT
420	IF Tbl.FieldAsString('name')='dbversion' THEN BEGIN
421	IF Tbl.FieldAsString('value')<>DBversion THEN BEGIN
422	ShowMessage('Database-file '+CrLf+'"'+FileName+'"'+CrLf+'has wrong version. (Required: '+DBversion+'; found: '+Tbl.FieldAsString('value')+')');
423	Exit;
424	END;
425	END;
426	IF Tbl.FieldAsString('name')='lvl' THEN BEGIN
427	database_level:=StrToInt(Tbl.FieldAsString('value'));
428	END;
429	IF Tbl.FieldAsString('name')='ident' THEN BEGIN
430	temps:=Tbl.FieldAsString('value');
431	FOR i:=0 TO High(database_ident) DO BEGIN
432	CASE temps[(i*2)+1+0] OF
433	'0'..'9': database_ident[i]:=Ord(temps[(i*2)+1+0])-48;
434	'A'..'F': database_ident[i]:=Ord(temps[(i*2)+1+0])-55;
435	END;
436	database_ident[i]:=database_ident[i]*16;
437	CASE temps[(i*2)+1+1] OF
438	'0'..'9': database_ident[i]:=database_ident[i]+Ord(temps[(i*2)+1+0])-48;
439	'A'..'F': database_ident[i]:=database_ident[i]+Ord(temps[(i*2)+1+0])-55;
440	END;
441	END;
442	END;
443	Tbl.Next;
444	UNTIL Tbl.EOF;
445	Tbl.Free;
446	opened_state:=opened_db;
447	END;
448
449
450
451
452	END.