unit filterOnOffCell;
(* ***** BEGIN LICENSE BLOCK *****
 * Copyright (C) 2004 Durand Emmanuel
 * Copyright (C) 2004 Burgel Eric
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Contact :
 *   filters@edurand.com
 *   filters@burgel.com
 *
 * ***** END LICENSE BLOCK ***** *)

{
 edurand (filters@edurand.com)
}

interface
uses
  filter, fparameters, filterConvolution, image;

type
  TFilterOnOffCell = class(TFilter)
  public
    constructor Create; override;
    destructor Destroy; override;
    procedure Run(); override;
    procedure setParameterImage( const aName: String; const aImage: PBitmap32);
  private
    parameterImageIn, parameterImageOutON, parameterImageOutOFF : TParameterImage;
    filterConvON, filterConvOFF : TFilterConvolution ;
    convImageON, convImageOFF : PBitmap32 ;
  end;

implementation
uses
  imageIO, Math;

constructor TFilterOnOffCell.Create;
begin
  inherited;

  parameterImageIn:=addParameterImage('inImage','explication...');
  parameterImageOutON:=addParameterImage('outImageON','explication...');
  parameterImageOutOFF:=addParameterImage('outImageOFF','explication...');

  filterConvON := TFilterConvolution.Create ;
  convImageON := image.createImage(3, 3) ;
  setWeight(convImageON, 0, 0, -16) ;
  setWeight(convImageON, 1, 0, -16) ;
  setWeight(convImageON, 2, 0, -16) ;
  setWeight(convImageON, 0, 1, -16) ;
  setWeight(convImageON, 1, 1, 127) ;
  setWeight(convImageON, 2, 1, -16) ;
  setWeight(convImageON, 0, 2, -16) ;
  setWeight(convImageON, 1, 2, -16) ;
  setWeight(convImageON, 2, 2, -16) ;
  filterConvON.setParameterImage('imageConv',convImageON);
  filterConvON.setParameterInteger('z', $100);

  filterConvOFF := TFilterConvolution.Create ;
  convImageOFF := image.createImage(3, 3) ;
  setWeight(convImageOFF, 0, 0, 16) ;
  setWeight(convImageOFF, 1, 0, 16) ;
  setWeight(convImageOFF, 2, 0, 16) ;
  setWeight(convImageOFF, 0, 1, 16) ;
  setWeight(convImageOFF, 1, 1, -127) ;
  setWeight(convImageOFF, 2, 1, 16) ;
  setWeight(convImageOFF, 0, 2, 16) ;
  setWeight(convImageOFF, 1, 2, 16) ;
  setWeight(convImageOFF, 2, 2, 16) ;
  filterConvOFF.setParameterImage('imageConv',convImageOFF);
  filterConvOFF.setParameterInteger('z', $100);
end;

destructor TFilterOnOffCell.Destroy;
begin
  filterConvON.Free;
  filterConvOFF.Free;
  image.freeImage(convImageON);
  image.freeImage(convImageOFF);
end;

procedure TFilterOnOffCell.setParameterImage( const aName: String; const aImage: PBitmap32);
begin
  inherited;
end;

procedure TFilterOnOffCell.Run();
var
  imageIn : PBitmap32;
  const Half : double = 0.5 ;
begin
  imageIn:=parameterImageIn.Image;
  if imageIn<>nil then begin
    // ON
    filterConvON.setParameterImage('inImage',imageIn);
    filterConvON.setParameterImage('outImage',parameterImageOutON.Image);
    filterConvON.setParameterString('convType','user');
    filterConvON.Run;
    // OFF
    filterConvOFF.setParameterImage('inImage',imageIn);
    filterConvOFF.setParameterImage('outImage',parameterImageOutOFF.Image);
    filterConvOFF.setParameterString('convType','user');
    filterConvOFF.Run;
  end;
end;

end.