src/shared/WADEDITOR.pas

   1 unit WADEDITOR;
   2
   3 {$DEFINE SFS_DWFAD_DEBUG}
   4
   5 interface
   6
   7 uses
   8   sfs, xstreams;
   9
  10
  11 type
  12   SArray = array of ShortString;
  13
  14   TWADEditor_1 = class(TObject)
  15   private
  16     fFileName: string; // empty: not opened
  17     fIter: TSFSFileList;
  18
  19     function getIsOpen (): Boolean;
  20
  21    public
  22     constructor Create();
  23     destructor Destroy(); override;
  24
  25     procedure FreeWAD();
  26
  27     function ReadFile (FileName: string): Boolean;
  28     function ReadMemory (Data: Pointer; Len: LongWord): Boolean;
  29     function GetResource (Section, Resource: string; var pData: Pointer; var Len: Integer): Boolean;
  30     function GetResourcesList (Section: string): SArray;
  31
  32     property isOpen: Boolean read getIsOpen;
  33   end;
  34
  35 {
  36 const
  37   DFWAD_NOERROR                = 0;
  38   DFWAD_ERROR_WADNOTFOUND      = -1;
  39   DFWAD_ERROR_CANTOPENWAD      = -2;
  40   DFWAD_ERROR_RESOURCENOTFOUND = -3;
  41   DFWAD_ERROR_FILENOTWAD       = -4;
  42   DFWAD_ERROR_WADNOTLOADED     = -5;
  43   DFWAD_ERROR_READRESOURCE     = -6;
  44   DFWAD_ERROR_READWAD          = -7;
  45   DFWAD_ERROR_WRONGVERSION     = -8;
  46 }
  47
  48
  49 procedure g_ProcessResourceStr (ResourceStr: String; var FileName, SectionName, ResourceName: String); overload;
  50 procedure g_ProcessResourceStr (ResourceStr: String; FileName, SectionName, ResourceName: PString); overload;
  51
  52
  53 implementation
  54
  55 uses
  56   SysUtils, Classes, BinEditor, e_log, g_options;
  57
  58
  59 procedure g_ProcessResourceStr (ResourceStr: String; var FileName, SectionName, ResourceName: String);
  60 var
  61   a, i: Integer;
  62
  63 begin
  64   //e_WriteLog(Format('g_ProcessResourceStr0: [%s]', [ResourceStr]), MSG_NOTIFY);
  65   for i := Length(ResourceStr) downto 1 do
  66     if ResourceStr[i] = ':' then
  67       Break;
  68
  69   FileName := Copy(ResourceStr, 1, i-1);
  70
  71   for a := i+1 to Length(ResourceStr) do
  72     if (ResourceStr[a] = '\') or (ResourceStr[a] = '/') then Break;
  73
  74   ResourceName := Copy(ResourceStr, a+1, Length(ResourceStr)-Abs(a));
  75   SectionName := Copy(ResourceStr, i+1, Length(ResourceStr)-Length(ResourceName)-Length(FileName)-2);
  76 end;
  77
  78
  79 procedure g_ProcessResourceStr (ResourceStr: AnsiString; FileName, SectionName, ResourceName: PAnsiString);
  80 var
  81   a, i, l1, l2: Integer;
  82
  83 begin
  84   //e_WriteLog(Format('g_ProcessResourceStr1: [%s]', [ResourceStr]), MSG_NOTIFY);
  85   for i := Length(ResourceStr) downto 1 do
  86     if ResourceStr[i] = ':' then
  87       Break;
  88
  89   if FileName <> nil then
  90     begin
  91       FileName^ := Copy(ResourceStr, 1, i-1);
  92       l1 := Length(FileName^);
  93     end
  94   else
  95     l1 := 0;
  96
  97   for a := i+1 to Length(ResourceStr) do
  98     if (ResourceStr[a] = '\') or (ResourceStr[a] = '/') then Break;
  99
 100   if ResourceName <> nil then
 101     begin
 102       ResourceName^ := Copy(ResourceStr, a+1, Length(ResourceStr)-Abs(a));
 103       l2 := Length(ResourceName^);
 104     end
 105   else
 106     l2 := 0;
 107
 108   if SectionName <> nil then
 109     SectionName^ := Copy(ResourceStr, i+1, Length(ResourceStr)-l2-l1-2);
 110 end;
 111
 112
 113 { TWADEditor_1 }
 114 constructor TWADEditor_1.Create();
 115 begin
 116   fFileName := '';
 117 end;
 118
 119
 120 destructor TWADEditor_1.Destroy();
 121 begin
 122   FreeWAD();
 123   inherited;
 124 end;
 125
 126
 127 function TWADEditor_1.getIsOpen (): Boolean;
 128 begin
 129   result := (fFileName <> '');
 130 end;
 131
 132
 133 procedure TWADEditor_1.FreeWAD();
 134 begin
 135   if fIter <> nil then FreeAndNil(fIter);
 136   //if fFileName <> '' then e_WriteLog(Format('TWADEditor_1.ReadFile: [%s] closed', [fFileName]), MSG_NOTIFY);
 137   fFileName := '';
 138 end;
 139
 140
 141 function removeExt (s: string): string;
 142 var
 143   i: Integer;
 144 begin
 145   i := length(s)+1;
 146   while (i > 1) and (s[i-1] <> '.') and (s[i-1] <> '/') do Dec(i);
 147   if (i > 1) and (s[i-1] = '.') then
 148   begin
 149     //writeln('[', s, '] -> [', Copy(s, 1, i-2), ']');
 150     s := Copy(s, 1, i-2);
 151   end;
 152   result := s;
 153 end;
 154
 155 function TWADEditor_1.GetResource (Section, Resource: string; var pData: Pointer; var Len: Integer): Boolean;
 156 var
 157   f: Integer;
 158   fi: TSFSFileInfo;
 159   fs: TStream;
 160   //fn: string;
 161 begin
 162   Result := False;
 163   if not isOpen or (fIter = nil) then Exit;
 164   if length(Resource) = 0 then Exit; // just in case
 165   if (length(Section) <> 0) and (Section[length(Section)] <> '/') then Section := Section+'/';
 166   // backwards, due to possible similar names and such
 167   for f := fIter.Count-1 downto 0 do
 168   begin
 169     fi := fIter.Files[f];
 170     if fi = nil then continue;
 171     //e_WriteLog(Format('DFWAD: searching for [%s : %s] in [%s]; current is [%s : %s] (%d, %d)', [Section, Resource, fFileName, fi.path, fi.name, SFSStrEqu(fi.path, Section), SFSStrEqu(fi.name, Resource)]), MSG_NOTIFY);
 172     if {SFSStrEqu}SFSDFPathEqu(fi.path, Section) and SFSStrEqu(removeExt(fi.name), Resource) then
 173     begin
 174       // i found her!
 175       //fn := fFileName+'::'+fi.path+fi.name;
 176       //fs := SFSFileOpen(fn);
 177       try
 178         fs := fIter.volume.OpenFileByIndex(f);
 179       except
 180         fs := nil;
 181       end;
 182       if fs = nil then
 183       begin
 184         e_WriteLog(Format('DFWAD: can''t open file [%s%s] in [%s]', [Section, Resource, fFileName]), MSG_WARNING);
 185         break;
 186       end;
 187       Len := Integer(fs.size);
 188       GetMem(pData, Len);
 189       fs.ReadBuffer(pData^, Len);
 190       fs.Free;
 191       result := true;
 192       {$IFDEF SFS_DWFAD_DEBUG}
 193       if gSFSDebug then
 194         e_WriteLog(Format('DFWAD: file [%s%s] FOUND in [%s]; size is %d bytes', [Section, Resource, fFileName, Len]), MSG_NOTIFY);
 195       {$ENDIF}
 196       exit;
 197     end;
 198   end;
 199   e_WriteLog(Format('DFWAD: file [%s%s] not found in [%s]', [Section, Resource, fFileName]), MSG_WARNING);
 200 end;
 201
 202
 203 function TWADEditor_1.GetResourcesList (Section: string): SArray;
 204 var
 205   f: Integer;
 206   fi: TSFSFileInfo;
 207 begin
 208   Result := nil;
 209   if not isOpen or (fIter = nil) then Exit;
 210   if (length(Section) <> 0) and (Section[length(Section)] <> '/') then Section := Section+'/';
 211   for f := 0 to fIter.Count-1 do
 212   begin
 213     fi := fIter.Files[f];
 214     if fi = nil then continue;
 215     if length(fi.name) = 0 then continue;
 216     if {SFSStrEqu}SFSDFPathEqu(fi.path, Section) then
 217     begin
 218       SetLength(result, Length(result)+1);
 219       result[high(result)] := removeExt(fi.name);
 220     end;
 221   end;
 222 end;
 223
 224
 225 function TWADEditor_1.ReadFile (FileName: string): Boolean;
 226 var
 227   rfn: string;
 228   //f: Integer;
 229   //fi: TSFSFileInfo;
 230 begin
 231   Result := False;
 232   //e_WriteLog(Format('TWADEditor_1.ReadFile: [%s]', [FileName]), MSG_NOTIFY);
 233   FreeWAD();
 234   rfn := FileName;
 235   if not FileExists(rfn) then
 236   begin
 237     //if length(rfn) >= 4 then e_WriteLog(Format('XXXX TWADEditor_1.ReadFile: [%s] [%s]', [Copy(rfn, length(rfn)-3, 4), Copy(rfn, 1, length(rfn)-4)]), MSG_NOTIFY);
 238     if (length(rfn) >= 4) and SFSStrEqu(Copy(rfn, length(rfn)-3, 4), '.wad') then
 239     begin
 240       rfn := Copy(rfn, 1, length(rfn)-4);
 241            if FileExists(rfn+'.pk3') then rfn := rfn+'.pk3'
 242       else if FileExists(rfn+'.zip') then rfn := rfn+'.zip'
 243       else rfn := FileName;
 244       {.$IFDEF SFS_DWFAD_DEBUG}
 245       if gSFSDebug then
 246         if FileExists(rfn) then e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
 247       {.$ENDIF}
 248     end;
 249   end;
 250   if not FileExists(rfn) then exit;
 251   {$IFDEF SFS_DWFAD_DEBUG}
 252   if gSFSDebug then
 253     e_WriteLog(Format('TWADEditor_1.ReadFile: FOUND [%s]', [rfn]), MSG_NOTIFY);
 254   {$ENDIF}
 255   // cache this wad
 256   SFSAddDataFile(rfn);
 257   fIter := SFSFileList(rfn);
 258   if fIter = nil then Exit;
 259   fFileName := rfn;
 260   {$IFDEF SFS_DWFAD_DEBUG}
 261   if gSFSDebug then
 262     e_WriteLog(Format('TWADEditor_1.ReadFile: [%s] opened', [fFileName]), MSG_NOTIFY);
 263   {$ENDIF}
 264   {
 265     for f := 0 to fIter.Count-1 do
 266     begin
 267       fi := fIter.Files[f];
 268       if fi = nil then continue;
 269       e_WriteLog(Format('[%s]: [%s : %s] %u', [fFileName, fi.path, fi.name, fi.size]), MSG_NOTIFY);
 270     end;
 271   }
 272   Result := True;
 273 end;
 274
 275
 276 var
 277   uniqueCounter: Integer = 0;
 278
 279 function TWADEditor_1.ReadMemory (Data: Pointer; Len: LongWord): Boolean;
 280 var
 281   fn: string;
 282   st: TStream = nil;
 283   //f: Integer;
 284   //fi: TSFSFileInfo;
 285 begin
 286   Result := False;
 287   FreeWAD();
 288   if (Data = nil) or (Len = 0) then
 289   begin
 290     e_WriteLog('TWADEditor_1.ReadMemory: EMPTY SUBWAD!', MSG_WARNING);
 291     Exit;
 292   end;
 293
 294   fn := Format(' -- memwad %d -- ', [uniqueCounter]);
 295   Inc(uniqueCounter);
 296   {$IFDEF SFS_DWFAD_DEBUG}
 297     e_WriteLog(Format('TWADEditor_1.ReadMemory: [%s]', [fn]), MSG_NOTIFY);
 298   {$ENDIF}
 299
 300   try
 301     st := TSFSMemoryStreamRO.Create(Data, Len);
 302     if not SFSAddSubDataFile(fn, st) then
 303     begin
 304       st.Free;
 305       Exit;
 306     end;
 307   except
 308     st.Free;
 309     Exit;
 310   end;
 311
 312   fIter := SFSFileList(fn);
 313   if fIter = nil then Exit;
 314
 315   fFileName := fn;
 316   {$IFDEF SFS_DWFAD_DEBUG}
 317     e_WriteLog(Format('TWADEditor_1.ReadMemory: [%s] opened', [fFileName]), MSG_NOTIFY);
 318   {$ENDIF}
 319
 320   {
 321   for f := 0 to fIter.Count-1 do
 322   begin
 323     fi := fIter.Files[f];
 324     if fi = nil then continue;
 325     st := fIter.volume.OpenFileByIndex(f);
 326     if st = nil then
 327     begin
 328       e_WriteLog(Format('[%s]: [%s : %s] CAN''T OPEN', [fFileName, fi.path, fi.name]), MSG_NOTIFY);
 329     end
 330     else
 331     begin
 332       e_WriteLog(Format('[%s]: [%s : %s] %u', [fFileName, fi.path, fi.name, st.size]), MSG_NOTIFY);
 333       st.Free;
 334     end;
 335   end;
 336   //fIter.volume.OpenFileByIndex(0);
 337   }
 338
 339   Result := True;
 340 end;
 341
 342
 343 begin
 344   sfsDiskDirs := '<exedir>/data'; //FIXME
 345 end.