text: /*
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program 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 General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   *
   * Copyright 2011, Blender Foundation.
   */
  
  #pragma once
  
  #include "COM_NodeOperation.h"
  
  class ConvolutionFilterOperation : public NodeOperation {
   private:
    int m_filterWidth;
    int m_filterHeight;
  
   protected:
    SocketReader *m_inputOperation;
    SocketReader *m_inputValueOperation;
    float m_filter[9];
  
   public:
    ConvolutionFilterOperation();
    void set3x3Filter(
        float f1, float f2, float f3, float f4, float f5, float f6, float f7, float f8, float f9);
    bool determineDependingAreaOfInterest(rcti *input,
                                          ReadBufferOperation *readOperation,
                                          rcti *output);
    void executePixel(float output[4], int x, int y, void *data);
  
    void initExecution();
    void deinitExecution();
  };
  