0.11a/src/Unit2_functions.pas

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

FUNCTION LoadDatInfos(filename:String):Boolean;
FUNCTION LoadDatFile(fileid:LongWord):Tdata;
FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
FUNCTION LoadRawFilePart(address,size:LongWord; target:Pointer):Boolean;
FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
FUNCTION FormatFileSize(size:LongWord):String;
FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
FUNCTION ExportFile(fileid:LongWord; convert:Boolean):Integer;
FUNCTION GetWinFileName(fileid:LongWord; substring:String):String;
FUNCTION GetExtractPath:String;


IMPLEMENTATION


FUNCTION LoadDatInfos(filename:String):Boolean;
  VAR i:LongWord;
    dat_file:TFileStream;
  BEGIN
    Result:=True;
    IF Length(filename)>0 THEN dat_file.Free;
    dat_filename:=filename;
    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;
{    FOR i:=0 TO High(dat_header.Ident2) DO
      IF dat_header.Ident2[i]<>header_ident2[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;
  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;


FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
  VAR dat_file:TFileStream;
  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;


FUNCTION LoadRawFilePart(address,size:LongWord; target:Pointer):Boolean;
  VAR
    filestream:TFileStream;
  BEGIN
    Result:=True;
    filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenRead);
    filestream.Seek(address,soFromBeginning);
    filestream.Read(target^,size);
    filestream.Free;
  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>=1024*1024*1024 THEN BEGIN
      Result:=FloatToStrF(size/1024/1024/1024,ffFixed,5,1)+' GB';
    END ELSE BEGIN
      IF size>=1024*1024 THEN BEGIN
        Result:=FloatToStrF(size/1024/1024,ffFixed,5,1)+' MB';
      END ELSE BEGIN
        IF size>=1024 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; convert:Boolean):Integer;
  VAR
    i:Byte;
  BEGIN
    Result:=export_noerror;

    ExportDefFileHeader(fileid);

    IF (dat_files[fileid].FileType AND $02)=0 THEN BEGIN
      ExportDatFile(fileid);

      FOR i:=1 TO Length(ExportHandlers)+1 DO BEGIN
        IF i<=Length(ExportHandlers) THEN BEGIN
          IF ExportHandlers[i].Ext=dat_files[fileid].Extension THEN BEGIN
            IF ExportHandlers[i].needed THEN BEGIN
              CASE ExportHandlers[i].Handler(fileid,convert) OF
                0: Result:=0;
              ELSE
                Result:=export_handlererror;
              END;
            END;
            Break;
          END;
        END ELSE BEGIN
          Result:=export_nohandler;
        END;
      END;
    END;
  END;


FUNCTION GetWinFileName(fileid:LongWord; substring:String):String;
  VAR
    name:String;
  BEGIN
    name:=dat_files[fileid].Name;
    name:=AnsiReplaceStr(name,'\','__');
    name:=AnsiReplaceStr(name,'/','__');
    name:=AnsiReplaceStr(name,'>','__');
    name:=AnsiReplaceStr(name,'<','__');
    Result:=FormatNumber(fileid,5,'0')+'-'+name+'.'+substring+'.'+dat_files[fileid].Extension;
  END;

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


END.
Revision:	8
Committed:	Sat Aug 26 17:40:45 2006 UTC (19 years, 1 month ago) by alloc
Content type:	text/x-pascal
File size:	6845 byte(s)
Log Message:	Uploaded old revs and structdefs.
#	Content
1	UNIT Unit2_functions;
2	INTERFACE
3	USES Classes, SysUtils, StrUtils, Math, Unit3_data, Unit4_Exporters;
4
5	FUNCTION LoadDatInfos(filename:String):Boolean;
6	FUNCTION LoadDatFile(fileid:LongWord):Tdata;
7	FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
8	FUNCTION LoadRawFilePart(address,size:LongWord; target:Pointer):Boolean;
9	FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
10	FUNCTION FormatFileSize(size:LongWord):String;
11	FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
12	FUNCTION ExportFile(fileid:LongWord; convert:Boolean):Integer;
13	FUNCTION GetWinFileName(fileid:LongWord; substring:String):String;
14	FUNCTION GetExtractPath:String;
15
16
17
18	IMPLEMENTATION
19
20
21	FUNCTION LoadDatInfos(filename:String):Boolean;
22	VAR i:LongWord;
23	dat_file:TFileStream;
24	BEGIN
25	Result:=True;
26	IF Length(filename)>0 THEN dat_file.Free;
27	dat_filename:=filename;
28	dat_file:=TFileStream.Create(filename, fmOpenRead);
29	dat_file.Read(dat_header,SizeOf(dat_header));
30	FOR i:=0 TO High(dat_header.Ident) DO
31	IF dat_header.Ident[i]<>header_ident1[i] THEN BEGIN
32	Result:=False;
33	Exit;
34	END;
35	{ FOR i:=0 TO High(dat_header.Ident2) DO
36	IF dat_header.Ident2[i]<>header_ident2[i] THEN BEGIN
37	Result:=False;
38	Exit;
39	END;
40	}
41	SetLength(dat_filesmap,dat_header.Files);
42	SetLength(dat_files,dat_header.Files);
43	FOR i:=0 TO dat_header.Files-1 DO dat_file.Read(dat_filesmap[i],SizeOf(dat_filesmap[i]));
44	FOR i:=0 TO dat_header.Files-1 DO BEGIN
45	dat_files[i].Extension:=dat_filesmap[i].Extension;
46	dat_files[i].Extension:=ReverseString(dat_files[i].Extension);
47	dat_files[i].Size:=dat_filesmap[i].FileSize;
48	dat_files[i].FileType:=dat_filesmap[i].FileType;
49	dat_files[i].DatAddr:=dat_filesmap[i].DataAddr-8+dat_header.DataAddr;
50	IF (dat_filesmap[i].FileType AND $01)=0 THEN BEGIN
51	dat_file.Seek(dat_filesmap[i].NameAddr+dat_header.NamesAddr,soFromBeginning);
52	SetLength(dat_files[i].Name,100);
53	dat_file.Read(dat_files[i].Name[1],100);
54	dat_files[i].Name:=MidStr(dat_files[i].Name,1+4,Pos(#0,dat_files[i].Name)-1-4);
55	END ELSE BEGIN
56	dat_files[i].Name:='';
57	END;
58	dat_files[i].FileName:=FormatNumber(i,5,'0')+'-'+dat_files[i].Name+'.'+dat_files[i].Extension;
59	END;
60	dat_file.Seek($40+dat_header.Files*$14,soFromBeginning);
61	SetLength(dat_namedfilesmap,dat_header.NamedFiles);
62	FOR i:=0 TO dat_header.NamedFiles-1 DO dat_file.Read(dat_namedfilesmap[i],SizeOf(dat_namedfilesmap[i]));
63
64	dat_file.Seek($40+dat_header.Files$14+dat_header.NamedFiles$8,soFromBeginning);
65	SetLength(dat_extensionsmap,dat_header.Extensions);
66	FOR i:=0 TO dat_header.Extensions-1 DO dat_file.Read(dat_extensionsmap[i],SizeOf(dat_extensionsmap[i]));
67
68	dat_file.Free;
69	END;
70
71
72	FUNCTION LoadDatFile(fileid:LongWord):Tdata;
73	VAR dat_file:TFileStream;
74	BEGIN
75	dat_file:=TFileStream.Create(dat_filename, fmOpenRead);
76	dat_file.Seek(dat_files[fileid].DatAddr,soFromBeginning);
77	SetLength(Result,dat_files[fileid].Size);
78	dat_file.Read(Result[0],dat_files[fileid].Size);
79	dat_file.Free;
80	END;
81
82
83	FUNCTION LoadDatFilePart(fileid,offset,size:LongWord; target:Pointer):Boolean;
84	VAR dat_file:TFileStream;
85	BEGIN
86	dat_file:=TFileStream.Create(dat_filename, fmOpenRead);
87	Result:=True;
88	dat_file.Seek(dat_files[fileid].DatAddr+offset,soFromBeginning);
89	dat_file.Read(target^,size);
90	dat_file.Free;
91	END;
92
93
94	FUNCTION LoadRawFilePart(address,size:LongWord; target:Pointer):Boolean;
95	VAR
96	filestream:TFileStream;
97	BEGIN
98	Result:=True;
99	filestream:=TFileStream.Create(AnsiReplaceStr(dat_filename,'.dat','.raw'),fmOpenRead);
100	filestream.Seek(address,soFromBeginning);
101	filestream.Read(target^,size);
102	filestream.Free;
103	END;
104
105
106	FUNCTION FormatNumber(value:LongWord; width:Byte; leadingzeros:Char):String;
107	BEGIN
108	Result:=AnsiReplaceStr(Format('%'+IntToStr(width)+'u',[value]),' ',leadingzeros);
109	END;
110
111
112	FUNCTION FormatFileSize(size:LongWord):String;
113	BEGIN
114	IF size>=102410241024 THEN BEGIN
115	Result:=FloatToStrF(size/1024/1024/1024,ffFixed,5,1)+' GB';
116	END ELSE BEGIN
117	IF size>=1024*1024 THEN BEGIN
118	Result:=FloatToStrF(size/1024/1024,ffFixed,5,1)+' MB';
119	END ELSE BEGIN
120	IF size>=1024 THEN BEGIN
121	Result:=FloatToStrF(size/1024,ffFixed,5,1)+' KB';
122	END ELSE BEGIN
123	Result:=IntToStr(size)+' B';
124	END;
125	END;
126	END;
127	END;
128
129
130	FUNCTION CreateHexString(data:Tdata; HexOnly:Boolean):String;
131	VAR
132	string_build,ascii_version:String;
133	i:LongWord;
134	BEGIN
135	string_build:='';
136	ascii_version:='';
137	FOR i:=0 TO High(data) DO BEGIN
138	IF NOT HexOnly THEN
139	IF (i MOD 16)=0 THEN
140	string_build:=string_build+'0x'+IntToHex(i,6)+' ';
141	string_build:=string_build+IntToHex(data[i],2);
142	IF NOT HexOnly THEN BEGIN
143	IF data[i]>=32 THEN ascii_version:=ascii_version+Chr(data[i])
144	ELSE ascii_version:=ascii_version+'.';
145	IF ((i+1) MOD 2)=0 THEN string_build:=string_build+#32;
146	IF ((i+1) MOD 16)=0 THEN BEGIN
147	string_build:=string_build+#32+ascii_version+CrLf;
148	ascii_version:='';
149	END;
150	END;
151	END;
152	Result:=string_build;
153	END;
154
155
156	FUNCTION ExportFile(fileid:LongWord; convert:Boolean):Integer;
157	VAR
158	i:Byte;
159	BEGIN
160	Result:=export_noerror;
161
162	ExportDefFileHeader(fileid);
163
164	IF (dat_files[fileid].FileType AND $02)=0 THEN BEGIN
165	ExportDatFile(fileid);
166
167	FOR i:=1 TO Length(ExportHandlers)+1 DO BEGIN
168	IF i<=Length(ExportHandlers) THEN BEGIN
169	IF ExportHandlers[i].Ext=dat_files[fileid].Extension THEN BEGIN
170	IF ExportHandlers[i].needed THEN BEGIN
171	CASE ExportHandlers[i].Handler(fileid,convert) OF
172	0: Result:=0;
173	ELSE
174	Result:=export_handlererror;
175	END;
176	END;
177	Break;
178	END;
179	END ELSE BEGIN
180	Result:=export_nohandler;
181	END;
182	END;
183	END;
184	END;
185
186
187	FUNCTION GetWinFileName(fileid:LongWord; substring:String):String;
188	VAR
189	name:String;
190	BEGIN
191	name:=dat_files[fileid].Name;
192	name:=AnsiReplaceStr(name,'\','__');
193	name:=AnsiReplaceStr(name,'/','__');
194	name:=AnsiReplaceStr(name,'>','__');
195	name:=AnsiReplaceStr(name,'<','__');
196	Result:=FormatNumber(fileid,5,'0')+'-'+name+'.'+substring+'.'+dat_files[fileid].Extension;
197	END;
198
199	FUNCTION GetExtractPath:String;
200	BEGIN
201	Result:=ExtractFilePath(dat_filename)+'\extracted_'+ExtractFileName(dat_filename);
202	END;
203
204
205	END.