COM_SeparateColorNode.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_SeparateColorNode.h"
 
#include "COM_ConvertOperation.h"
 
namespace blender::compositor {
 
SeparateColorNode::SeparateColorNode(bNode *editorNode) : Node(editorNode)
{
}
 
void SeparateColorNode::convertToOperations(NodeConverter &converter,
                                            const CompositorContext &context) const
{
  NodeInput *imageSocket = this->getInputSocket(0);
  NodeOutput *outputRSocket = this->getOutputSocket(0);
  NodeOutput *outputGSocket = this->getOutputSocket(1);
  NodeOutput *outputBSocket = this->getOutputSocket(2);
  NodeOutput *outputASocket = this->getOutputSocket(3);
 
  NodeOperation *color_conv = getColorConverter(context);
  if (color_conv) {
    converter.addOperation(color_conv);
 
    converter.mapInputSocket(imageSocket, color_conv->getInputSocket(0));
  }
 
  {
    SeparateChannelOperation *operation = new SeparateChannelOperation();
    operation->setChannel(0);
    converter.addOperation(operation);
 
    if (color_conv) {
      converter.addLink(color_conv->getOutputSocket(), operation->getInputSocket(0));
    }
    else {
      converter.mapInputSocket(imageSocket, operation->getInputSocket(0));
    }
    converter.mapOutputSocket(outputRSocket, operation->getOutputSocket(0));
  }
 
  {
    SeparateChannelOperation *operation = new SeparateChannelOperation();
    operation->setChannel(1);
    converter.addOperation(operation);
 
    if (color_conv) {
      converter.addLink(color_conv->getOutputSocket(), operation->getInputSocket(0));
    }
    else {
      converter.mapInputSocket(imageSocket, operation->getInputSocket(0));
    }
    converter.mapOutputSocket(outputGSocket, operation->getOutputSocket(0));
  }
 
  {
    SeparateChannelOperation *operation = new SeparateChannelOperation();
    operation->setChannel(2);
    converter.addOperation(operation);
 
    if (color_conv) {
      converter.addLink(color_conv->getOutputSocket(), operation->getInputSocket(0));
    }
    else {
      converter.mapInputSocket(imageSocket, operation->getInputSocket(0));
    }
    converter.mapOutputSocket(outputBSocket, operation->getOutputSocket(0));
  }
 
  {
    SeparateChannelOperation *operation = new SeparateChannelOperation();
    operation->setChannel(3);
    converter.addOperation(operation);
 
    if (color_conv) {
      converter.addLink(color_conv->getOutputSocket(), operation->getInputSocket(0));
    }
    else {
      converter.mapInputSocket(imageSocket, operation->getInputSocket(0));
    }
    converter.mapOutputSocket(outputASocket, operation->getOutputSocket(0));
  }
}
 
NodeOperation *SeparateRGBANode::getColorConverter(const CompositorContext & /*context*/) const
{
  return nullptr; /* no conversion needed */
}
 
NodeOperation *SeparateHSVANode::getColorConverter(const CompositorContext & /*context*/) const
{
  return new ConvertRGBToHSVOperation();
}
 
NodeOperation *SeparateYCCANode::getColorConverter(const CompositorContext & /*context*/) const
{
  ConvertRGBToYCCOperation *operation = new ConvertRGBToYCCOperation();
  bNode *editorNode = this->getbNode();
  operation->setMode(editorNode->custom1);
  return operation;
}
 
NodeOperation *SeparateYUVANode::getColorConverter(const CompositorContext & /*context*/) const
{
  return new ConvertRGBToYUVOperation();
}
 
}  // namespace blender::compositor