blender-archive/source/blender/compositor/operations/COM_PixelateOperation.h

/*
 * 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.
 */

#ifndef __COM_PIXELATEOPERATION_H__
#define __COM_PIXELATEOPERATION_H__

#include "COM_NodeOperation.h"

/**
 * \brief Pixelate operation
 *
 * The Tile compositor is by default sub-pixel accurate.
 * For some setups you don want this.
 * This operation will remove the sub-pixel accuracy
 */
class PixelateOperation : public NodeOperation {
 private:
  /**
   * \brief cached reference to the input operation
   */
  SocketReader *m_inputOperation;

 public:
  /**
   * \brief PixelateOperation
   * \param dataType: the datatype to create this operator for (saves datatype conversions)
   */
  PixelateOperation(DataType dataType);

  /**
   * \brief initialization of the execution
   */
  void initExecution();

  /**
   * \brief de-initialization of the execution
   */
  void deinitExecution();

  /**
   * \brief executePixel
   * \param output: result
   * \param x: x-coordinate
   * \param y: y-coordinate
   * \param sampler: sampler
   */
  void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);
};

#endif