adds more debug info to the uncompressor

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2718 8e941d3f-bd1b-0410-a28a-d453659cc2b4

applications/fpvviewer/uncompressor/mainform.lfm

@@ -1,10 +1,10 @@
 object Form1: TForm1
   Left = 241
-  Height = 121
+  Height = 357
   Top = 161
   Width = 320
   Caption = 'GZ Uncompressor'
-  ClientHeight = 121
+  ClientHeight = 357
   ClientWidth = 320
   LCLVersion = '1.1'
   object editFileName: TFileNameEdit
@@ -37,4 +37,30 @@ object Form1: TForm1
     Caption = 'File to be uncompressed:'
     ParentColor = False
   end
+  object Button2: TButton
+    Left = 16
+    Height = 25
+    Top = 120
+    Width = 288
+    Caption = 'Uncompress to a memory stream and show it'
+    OnClick = Button2Click
+    TabOrder = 2
+  end
+  object memoOutput: TMemo
+    AnchorSideRight.Control = Owner
+    AnchorSideRight.Side = asrBottom
+    AnchorSideBottom.Control = Owner
+    AnchorSideBottom.Side = asrBottom
+    Left = 16
+    Height = 179
+    Top = 168
+    Width = 294
+    Anchors = [akTop, akLeft, akRight, akBottom]
+    BorderSpacing.Right = 10
+    BorderSpacing.Bottom = 10
+    Lines.Strings = (
+      'memoOutput'
+    )
+    TabOrder = 3
+  end
 end

applications/fpvviewer/uncompressor/mainform.pas

@@ -14,9 +14,12 @@ type
 
   TForm1 = class(TForm)
     Button1: TButton;
+    Button2: TButton;
     editFileName: TFileNameEdit;
     Label1: TLabel;
+    memoOutput: TMemo;
     procedure Button1Click(Sender: TObject);
+    procedure Button2Click(Sender: TObject);
   private
     { private declarations }
   public
@@ -49,6 +52,31 @@ begin
   end;
 end;
 
+procedure TForm1.Button2Click(Sender: TObject);
+var
+  DestStream: TMemoryStream;
+  i: Integer;
+  lStr: string;
+  lByte: Byte;
+begin
+  DestStream := TMemoryStream.Create();
+  try
+    InflateGZ(editFileName.Text, DestStream);
+    DestStream.Position := 0;
+    for i := 0 to DestStream.Size-1 do
+    begin
+      lByte := DestStream.ReadByte();
+      {if not (lByte in [10, 13]) then}
+        lStr := lStr + Format('%x=%s ', [lByte, Char(lByte)])
+{      else
+        lStr := lStr + Format('%x ', [lByte]);}
+    end;
+    memoOutput.Text := lStr;
+  finally
+    DestStream.Free;
+  end;
+end;
+
 procedure TForm1.InflateGZ(AGZFilename: string; ADest: TStream);
 var
   GZStream: TGZFileStream;