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/***********************************************************************************************************************
 *
 * Mistral - open source imaging engine
 * Copyright (C) 2003-2012 by Tidalwave s.a.s.
 *
 ***********************************************************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 *
 ***********************************************************************************************************************
 *
 * WWW: http://mistral.imajine.org
 * SCM: https://bitbucket.org/tidalwave/mistral-src
 *
 **********************************************************************************************************************/
package org.imajine.image.jai;

import javax.media.jai.PlanarImage;
import javax.media.jai.operator.ConstantDescriptor;
import org.imajine.image.EditableImage;
import org.imajine.image.op.OperationImplementation;
import org.imajine.image.op.CreateOp;
import lombok.extern.slf4j.Slf4j;

/***********************************************************************************************************************
 *
 * @author  Emmanuele Sordini
 * @author  Fabrizio Giudici
 * @version $Id: CreateJAIOp.java,v 20e39e8c9fac 2012/02/02 16:35:02 fabrizio $
 *
 **********************************************************************************************************************/
@Slf4j
public class CreateJAIOp extends OperationImplementation
  {
    @Override
    protected PlanarImage execute (final CreateOp operation, final EditableImage image, final PlanarImage planarImage)
      {
        final double[] filler = operation.getFiller();
        Number[] dims = null;

        switch (operation.getDataType())
          {
            case BYTE:
                dims = new Byte[filler.length];

                for (int i = 0; i < filler.length; i++)
                  {
                    dims[i] = (byte)filler[i];
                  }

                break;

            case SHORT:
                dims = new Short[filler.length];

                for (int i = 0; i < filler.length; i++)
                  {
                    dims[i] = (short)filler[i];
                  }

                break;

            case UNSIGNED_SHORT:
                dims = new Short[filler.length];

                for (int i = 0; i < filler.length; i++)
                  {
                    dims[i] = (short)filler[i];
                  }

                break;

            case INT:
                dims = new Integer[filler.length];

                for (int i = 0; i < filler.length; i++)
                  {
                    dims[i] = (int)filler[i];
                  }

                break;

            case FLOAT:
                dims = new Float[filler.length];

                for (int i = 0; i < filler.length; i++)
                  {
                    dims[i] = (float)filler[i];
                  }

                break;

            case DOUBLE:
                dims = new Double[filler.length];

                for (int i = 0; i < filler.length; i++)
                  {
                    dims[i] = (double)filler[i];
                  }

                break;

            default:
                throw new IllegalArgumentException("Unsupported dataType: " + operation.getDataType());
          }

        final PlanarImage result = ConstantDescriptor.create((float)operation.getWidth(), (float)operation.getHeight(), dims, null).createInstance();
        JAIUtils.logImage(log, ">>>> CreateJAIOp returning", result);

        return result;
      }
  }