X-Git-Url: http://deadsoftware.ru/gitweb?a=blobdiff_plain;f=src%2Feditor%2Fg_resources.pas;h=0e383c3a565d8317103f87a0170500f4945f7eff;hb=ecf69fd49c810dc4fe78092ec1f0204cbb719e01;hp=efed1250499e8047dadb1a04f18988219a47be32;hpb=01c9a29799525526658398f627b8be9f8f11e903;p=d2df-editor.git

diff --git a/src/editor/g_resources.pas b/src/editor/g_resources.pas
index efed125..0e383c3 100644
--- a/src/editor/g_resources.pas
+++ b/src/editor/g_resources.pas
@@ -2,31 +2,350 @@ unit g_resources;
 
 interface
 
+  (**
+    g_GetResourceSection
+      Parse path in form 'path/to/file.wad:some/section/resouce' to
+      wad = 'path/to/file.wa', section = 'some/section', name = 'resource'
+
+    g_DeleteFile
+      Delete file if it exists. Make backup if enabled.
+
+    g_ReadResource
+      Read whole file from wad
+      (data <> nil) and (len > 0) when ok
+      use FreeMem(data) when done
+
+    g_ReadSubResource
+      Read whole file from folded wad
+      (data <> nil) and (len > 0) when ok
+      use FreeMem(data) when done
+
+    g_DeleteResource
+      Delete file from wad
+      res = 0 when ok
+
+    g_AddResource
+      Add/overwrite file to wad
+      res = 0 when ok
+
+    g_ExistsResource
+      Check that resource exists
+      res = 0 when ok
+  **)
+
+  (* Editor options *)
+  var
+    Compress: Boolean;
+    Backup: Boolean;
+
+  procedure g_GetResourceSection (path: String; out wad, section, name: String);
+  procedure g_DeleteFile(wad: String; backupPostfix: String = '.bak');
+
   procedure g_ReadResource (wad, section, name: String; out data: PByte; out len: Integer);
   procedure g_ReadSubResource (wad, section0, name0, section1, name1: String; out data: PByte; out len: Integer);
+  procedure g_DeleteResource (wad, section, name: String; out res: Integer);
+  procedure g_AddResource (wad, section, name: String; const data: PByte; len: Integer; out res: Integer);
+  procedure g_ExistsResource (wad, section, name: String; out res: Integer);
 
 implementation
 
-  uses sfs, utils, Classes;
+  uses sfs, xstreams, dfzip, utils, Classes, SysUtils, WADEDITOR, e_log;
 
-  procedure g_ReadResource (wad, section, name: String; out data: PByte; out len: Integer);
+  function NoTrailing (path: String): String;
+    var i: Integer;
+  begin
+    i := Length(path);
+    while (i > 0) and ((path[i] = '/') or (path[i] = '\')) do dec(i);
+    result := Copy(path, 1, i)
+  end;
+
+  function g_CleanPath (path: String; sys: Boolean = False): String;
+    var i, len: Integer;
+  begin
+    i := 1;
+    result := '';
+    len := Length(path);
+    (* drop separators at the end *)
+    while (len > 1) and ((path[i] = '/') or (path[i] = '\')) do dec(len);
+    while i <= len do
+    begin
+      while (i <= len) and (path[i] <> '/') and (path[i] <> '\') do
+      begin
+        result := result + path[i];
+        inc(i)
+      end;
+      if i <= len then
+        if sys then
+          result := result + DirectorySeparator
+        else
+          result := result + '/';
+      inc(i);
+      while (i <= len) and ((path[i] = '/') or (path[i] = '\')) do inc(i)
+    end;
+  end;
+
+  procedure g_GetResourceSection (path: String; out wad, section, name: String);
+    var i, j, len: Integer;
+  begin
+    len := Length(path);
+    i := len;
+    while (i > 0) and (path[i] <> '/') and (path[i] <> '\') do dec(i);
+    name := Copy(path, i + 1, len);
+    j := i;
+    while (i > 0) and (path[i] <> ':') do dec(i);
+    section := Copy(path, i + 1, j - i - 1);
+    wad := Copy(path, 1, i - 1);
+  end;
+
+  procedure g_DeleteFile (wad: String; backupPostfix: String = '.bak');
+    var newwad: String;
+  begin
+    if Backup then
+    begin
+      if FileExists(wad) then
+      begin
+        newwad := wad + backupPostfix;
+        if FileExists(newwad) then
+          ASSERT(DeleteFile(newwad));
+        ASSERT(RenameFile(wad, newwad))
+      end
+    end
+    else
+    begin
+      if FileExists(wad) then
+        ASSERT(DeleteFile(wad))
+    end
+  end;
+
+  procedure g_AddResourceToDFWAD (wad, section, name: String; const data: PByte; len: Integer; out res: Integer);
+    var f: TWADEditor_1;
+  begin
+    res := 1; (* error *)
+    wad := utf2win(wad);
+    section := utf2win(NoTrailing(section));
+    name := utf2win(name);
+    ASSERT(name <> '');
+    f := TWADEditor_1.Create();
+    if not f.ReadFile(wad) then
+    begin
+      (* do nothing *)
+    end;
+    f.CreateImage;
+    f.RemoveResource(section, name);
+    f.AddResource(data, len, name, section);
+    g_DeleteFile(wad);
+    f.SaveTo(wad);
+    f.Free;
+    res := 0
+  end;
+
+  procedure g_AddResourceToZip (wad, section, name: String; const data: PByte; len: Integer; out res: Integer);
+    var
+      i, n, len0: Integer;
+      data0: PByte;
+      list: TSFSFileList;
+      tmp, path: String;
+      ts: TFileStream;
+      dir: array of TFileInfo;
+
+    procedure Add (name: String; data: PByte; len: Integer);
+      var ds: TSFSMemoryChunkStream;
+    begin
+      SetLength(dir, n + 1);
+      ds := TSFSMemoryChunkStream.Create(data, len, False);
+      dir[n] := dfzip.ZipOne(ts, name, ds, Compress);
+      ds.Free;
+      INC(n);
+    end;
+
+  begin
+    res := 1;
+    wad := ExpandFileName(wad);
+    section := utf2win(NoTrailing(section));
+    name := utf2win(name);
+    ASSERT(name <> '');
+    list := SFSFileList(wad);
+    tmp := wad + '.tmp' + IntToStr(Random(100000));
+    ts := TFileStream.Create(tmp, fmCreate);
+    n := 0;
+    SetLength(dir, 0);
+    if list <> nil then
+    begin
+      for i := 0 to list.Count - 1 do
+      begin
+        path := NoTrailing(list.Files[i].path);
+        if (path <> section) or (list.Files[i].name <> name) then
+        begin
+          g_ReadResource(wad, path, list.Files[i].name, data0, len0);
+          ASSERT(data0 <> nil);
+          if path = '' then
+            path := list.Files[i].name
+          else
+            path := path + '/' + list.Files[i].name;
+          Add(path, data0, len0);
+          FreeMem(data0)
+        end
+      end;
+      list.Destroy
+    end;
+
+    if section = '' then
+      path := name
+    else
+      path := section + '/' + name;
+    Add(path, data, len);
+
+    dfzip.writeCentralDir(ts, dir);
+    ts.Free;
+
+    g_DeleteFile(wad);
+    ASSERT(RenameFile(tmp, wad));
+    res := 0
+  end;
+
+  procedure g_AddResource (wad, section, name: String; const data: PByte; len: Integer; out res: Integer);
+    var ext: String;
+  begin
+    ASSERT(name <> '');
+    res := 2; (* unknown type *)
+    ext := LowerCase(SysUtils.ExtractFileExt(wad));
+    e_WriteLog('g_AddResource "' + wad + '" "' + section + '" "' + name + '"', MSG_NOTIFY);
+    if ext = '.wad' then
+      g_AddResourceToDFWAD(wad, section, name, data, len, res)
+    else
+      g_AddResourceToZip(wad, section, name, data, len, res)
+  end;
+
+  procedure g_DeleteResourceFromDFWAD (wad, section, name: String; out res: Integer);
+    var f: TWADEditor_1;
+  begin
+    ASSERT(name <> '');
+    res := 1; (* error *)
+    section := utf2win(NoTrailing(section));
+    name := utf2win(name);
+    f := TWADEditor_1.Create;
+    if not f.ReadFile(wad) then
+    begin
+      f.Free;
+      Exit
+    end;
+    f.CreateImage;
+    f.RemoveResource(section, name);
+    g_DeleteFile(wad);
+    f.SaveTo(wad);
+    f.Free;
+    res := 0 (* ok *)
+  end;
+
+  procedure g_DeleteResourceFromZip (wad, section, name: String; out res: Integer);
     var
-      stream: TStream;
-      str: String;
-      i: Integer;
+      data0: PByte;
+      i, n, len0: Integer;
+      list: TSFSFileList;
+      tmp, path: String;
+      ts: TFileStream;
+      dir: array of TFileInfo;
+
+    procedure Add (name: String; data: PByte; len: Integer);
+      var ds: TSFSMemoryChunkStream;
+    begin
+      SetLength(dir, n + 1);
+      ds := TSFSMemoryChunkStream.Create(data, len, False);
+      dir[n] := dfzip.ZipOne(ts, name, ds, Compress);
+      ds.Free;
+      INC(n);
+    end;
+
+  begin
+    res := 1;
+    wad := ExpandFileName(wad);
+    section := utf2win(NoTrailing(section));
+    name := utf2win(name);
+    ASSERT(name <> '');
+    list := SFSFileList(wad);
+    tmp := wad + '.tmp' + IntToStr(Random(100000));
+    ts := TFileStream.Create(tmp, fmCreate);
+    n := 0;
+    SetLength(dir, 0);
+    if list <> nil then
+    begin
+      for i := 0 to list.Count - 1 do
+      begin
+        path := NoTrailing(list.Files[i].path);
+        if (path <> section) or (list.Files[i].name <> name) then
+        begin
+          g_ReadResource(wad, path, list.Files[i].name, data0, len0);
+          ASSERT(data0 <> nil);
+          if path = '' then
+            path := list.Files[i].name
+          else
+            path := path + '/' + list.Files[i].name;
+          Add(path, data0, len0);
+          FreeMem(data0)
+        end
+      end;
+      list.Destroy
+    end;
+
+    dfzip.writeCentralDir(ts, dir);
+    ts.Free;
+
+    g_DeleteFile(wad);
+    ASSERT(RenameFile(tmp, wad));
+    res := 0
+  end;
+
+  procedure g_DeleteResource (wad, section, name: String; out res: Integer);
+    var ext: String;
+  begin
+    ASSERT(name <> '');
+    res := 2; (* unknown type *)
+    ext := LowerCase(SysUtils.ExtractFileExt(wad));
+    if ext = '.wad' then
+      g_DeleteResourceFromDFWAD(wad, section, name, res)
+    else
+      g_DeleteResourceFromZip(wad, section, name, res)
+  end;
+
+  procedure g_ExistsResource (wad, section, name: String; out res: Integer);
+    var str: String; stream: TStream;
+  begin
+    res := 1;
+    section := utf2win(NoTrailing(section));
+    name := utf2win(name);
+    ASSERT(name <> '');
+    if SFSAddDataFileTemp(wad, TRUE) then
+    begin
+      str := SFSGetLastVirtualName(section + '\' + name);
+      stream := SFSFileOpen(wad + '::' + str);
+      if stream <> nil then
+      begin
+        res := 0;
+        stream.Destroy
+      end
+    end;
+    SFSGCCollect
+  end;
+
+  procedure g_ReadResource (wad, section, name: String; out data: PByte; out len: Integer);
+    var stream: TStream; str: String; i: Integer;
   begin
-    section := utf2win(section);
+    e_WriteLog('g_ReadResource: "' + wad + '" "' + section + '" "' + name + '"', MSG_NOTIFY);
+    section := utf2win(NoTrailing(section));
     name := utf2win(name);
     data := nil;
     len := 0;
+    //ASSERT(name <> '');
+    if name = '' then Exit; (* SKY can be void *)
     if SFSAddDataFileTemp(wad, TRUE) then
     begin
-      str := SFSGetLastVirtualName(section + '\' + name);
+      str := SFSGetLastVirtualName(section + '/' + name);
       stream := SFSFileOpen(wad + '::' + str);
       if stream <> nil then
       begin
         len := stream.Size;
         GetMem(data, len);
+        ASSERT(data <> nil);
         //stream.ReadBuffer(data, len); (* leads to segfault *)
         for i := 0 to len - 1 do
           data[i] := stream.ReadByte();
@@ -37,18 +356,17 @@ implementation
   end;
 
   procedure g_ReadSubResource (wad, section0, name0, section1, name1: String; out data: PByte; out len: Integer);
-    var
-      stream0, stream1: TStream;
-      str0, str1: String;
-      i: Integer;
+    var stream0, stream1: TStream; str0, str1: String; i: Integer;
   begin
     data := nil;
     len := 0;
-    if (wad = '') OR (section0 = '') OR (name0 = '') OR (section1 = '') OR (name1 = '') then Exit;
-    section0 := utf2win(section0);
+    section0 := utf2win(NoTrailing(section0));
     name0 := utf2win(name0);
-    section1 := utf2win(section1);
+    section1 := utf2win(NoTrailing(section1));
     name1 := utf2win(name1);
+    //ASSERT(name0 <> '');
+    //ASSERT(name1 <> '');
+    if (wad = '') OR (name0 = '') OR (name1 = '') then Exit; (* ??? *)
     if SFSAddDataFileTemp(wad, TRUE) then
     begin
       str0 := SFSGetLastVirtualName(section0 + '\' + name0);
@@ -63,6 +381,7 @@ implementation
           begin
             len := stream1.Size;
             GetMem(data, len);
+            ASSERT(data <> nil);
             //stream1.ReadBuffer(data, len); (* leads to segfault *)
             for i := 0 to len - 1 do
               data[i] := stream1.ReadByte();