/*
 * 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_CompositorNode.h"
#include "COM_CompositorOperation.h"

namespace blender::compositor {

CompositorNode::CompositorNode(bNode *editor_node) : Node(editor_node)
{
  /* pass */
}

void CompositorNode::convert_to_operations(NodeConverter &converter,
                                           const CompositorContext &context) const
{
  bNode *editor_node = this->get_bnode();
  bool is_active = (editor_node->flag & NODE_DO_OUTPUT_RECALC) || context.is_rendering();
  bool ignore_alpha = (editor_node->custom2 & CMP_NODE_OUTPUT_IGNORE_ALPHA) != 0;

  NodeInput *image_socket = this->get_input_socket(0);
  NodeInput *alpha_socket = this->get_input_socket(1);
  NodeInput *depth_socket = this->get_input_socket(2);

  CompositorOperation *compositor_operation = new CompositorOperation();
  compositor_operation->set_scene(context.get_scene());
  compositor_operation->set_scene_name(context.get_scene()->id.name);
  compositor_operation->set_render_data(context.get_render_data());
  compositor_operation->set_view_name(context.get_view_name());
  compositor_operation->set_bnodetree(context.get_bnodetree());
  /* alpha socket gives either 1 or a custom alpha value if "use alpha" is enabled */
  compositor_operation->set_use_alpha_input(ignore_alpha || alpha_socket->is_linked());
  compositor_operation->set_active(is_active);

  converter.add_operation(compositor_operation);
  converter.map_input_socket(image_socket, compositor_operation->get_input_socket(0));
  /* only use alpha link if "use alpha" is enabled */
  if (ignore_alpha) {
    converter.add_input_value(compositor_operation->get_input_socket(1), 1.0f);
  }
  else {
    converter.map_input_socket(alpha_socket, compositor_operation->get_input_socket(1));
  }
  converter.map_input_socket(depth_socket, compositor_operation->get_input_socket(2));

  converter.add_node_input_preview(image_socket);
}

}  // namespace blender::compositor