COM_EllipseMaskNode.cc

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/*
 * 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.
 */
 
#include "COM_EllipseMaskNode.h"
#include "COM_EllipseMaskOperation.h"
#include "COM_ExecutionSystem.h"
 
#include "COM_ScaleOperation.h"
#include "COM_SetValueOperation.h"
 
namespace blender::compositor {
 
EllipseMaskNode::EllipseMaskNode(bNode *editorNode) : Node(editorNode)
{
  /* pass */
}
 
void EllipseMaskNode::convertToOperations(NodeConverter &converter,
                                          const CompositorContext &context) const
{
  NodeInput *inputSocket = this->getInputSocket(0);
  NodeOutput *outputSocket = this->getOutputSocket(0);
 
  EllipseMaskOperation *operation;
  operation = new EllipseMaskOperation();
  operation->setData((NodeEllipseMask *)this->getbNode()->storage);
  operation->setMaskType(this->getbNode()->custom1);
  converter.addOperation(operation);
 
  if (inputSocket->isLinked()) {
    converter.mapInputSocket(inputSocket, operation->getInputSocket(0));
    converter.mapOutputSocket(outputSocket, operation->getOutputSocket());
  }
  else {
    /* Value operation to produce original transparent image */
    SetValueOperation *valueOperation = new SetValueOperation();
    valueOperation->setValue(0.0f);
    converter.addOperation(valueOperation);
 
    /* Scale that image up to render resolution */
    const RenderData *rd = context.getRenderData();
    const float render_size_factor = context.getRenderPercentageAsFactor();
    ScaleFixedSizeOperation *scaleOperation = new ScaleFixedSizeOperation();
 
    scaleOperation->setIsAspect(false);
    scaleOperation->setIsCrop(false);
    scaleOperation->setOffset(0.0f, 0.0f);
    scaleOperation->setNewWidth(rd->xsch * render_size_factor);
    scaleOperation->setNewHeight(rd->ysch * render_size_factor);
    scaleOperation->getInputSocket(0)->setResizeMode(ResizeMode::None);
    converter.addOperation(scaleOperation);
 
    converter.addLink(valueOperation->getOutputSocket(0), scaleOperation->getInputSocket(0));
    converter.addLink(scaleOperation->getOutputSocket(0), operation->getInputSocket(0));
    converter.mapOutputSocket(outputSocket, operation->getOutputSocket(0));
  }
 
  converter.mapInputSocket(getInputSocket(1), operation->getInputSocket(1));
}
 
}  // namespace blender::compositor