File indexing completed on 2024-05-12 15:59:36

 /*
  *  SPDX-FileCopyrightText: 2005 Boudewijn Rempt <boud@valdyas.org>
  *  SPDX-FileCopyrightText: 2006-2007 Cyrille Berger <cberger@cberger.net>
  *
  * SPDX-License-Identifier: LGPL-2.1-or-later
  */
 #ifndef KO_CONVOLUTION_OP_H
 #define KO_CONVOLUTION_OP_H
 
 /**
  * Base class of a convolution operation. A convolution operation is
  * defined by sum(colors[i] * kernelValues[i]) / factor + offset). The
  * most well known convolution is the gaussian blur.
  *
  * You access the KoConvolutionOp of a colorspace by calling
  * KoColorSpace::convolutionOp.
  */
 class KoConvolutionOp
 {
 public:
     virtual ~KoConvolutionOp() { }
     /**
      * Convolve the colors.
      *
      * @param colors a pointer toward the source pixels
      * @param kernelValues the coefficient of the source pixels
      * @param dst the destination pixel
      * @param factor usually the factor is equal to the sum of kernelValues
      * @param offset the offset which is added to the result, useful
      *        when the sum of kernelValues is equal to 0
      * @param nColors the number of pixels in the colors array
      * @param channelFlags determines which channels are affected in pixel order
      *
      * This function is thread-safe.
      *
      */
     virtual void convolveColors(const quint8* const* colors, const qreal* kernelValues, quint8 *dst, qreal factor, qreal offset, qint32 nColors, const QBitArray & channelFlags) const = 0;
 };
 
 #endif