test2/source/blender/compositor/operations/COM_SetAlphaMultiplyOperation.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.
 */

#pragma once

#include "COM_MultiThreadedOperation.h"

namespace blender::compositor {

/**
 * This operation will apply a mask to its input image.
 *
 * `output color.rgba = input color.rgba * input alpha`
 */
class SetAlphaMultiplyOperation : public MultiThreadedOperation {
 private:
  SocketReader *m_inputColor;
  SocketReader *m_inputAlpha;

 public:
  SetAlphaMultiplyOperation();

  void executePixelSampled(float output[4], float x, float y, PixelSampler sampler) override;

  void initExecution() override;
  void deinitExecution() override;

  void update_memory_buffer_partial(MemoryBuffer *output,
                                    const rcti &area,
                                    Span<MemoryBuffer *> inputs) override;
};

}  // namespace blender::compositor