deeplearning4j/deeplearning4j

/* ******************************************************************************
 *
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 which is available at
 * https://www.apache.org/licenses/LICENSE-2.0.
 *
 *  See the NOTICE file distributed with this work for additional
 *  information regarding copyright ownership.
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 ******************************************************************************/

//
// @author AbdelRauf    (rauf@konduit.ai)
//

#include <execution/Threads.h>
#include <helpers/ConstantTadHelper.h>
#include <ops/declarable/CustomOperations.h>
#include <ops/declarable/headers/images.h>

#if NOT_EXCLUDED(OP_rgb_to_yiq)
namespace sd {
namespace ops {

CONFIGURABLE_OP_IMPL(rgb_to_yiq, 1, 1, true, 0, 0) {
  auto input = INPUT_VARIABLE(0);
  auto output = OUTPUT_VARIABLE(0);

  if (input->isEmpty()) return sd::Status::OK;

  const int rank = input->rankOf();
  const int arg_size = block.getIArguments()->size();
  const int dimC = arg_size > 0 ? (INT_ARG(0) >= 0 ? INT_ARG(0) : INT_ARG(0) + rank) : rank - 1;

  REQUIRE_TRUE(rank >= 1, 0, "RGBtoYIQ: Fails to meet the rank requirement: %i >= 1 ", rank);
  if (arg_size > 0) {
    REQUIRE_TRUE(dimC >= 0 && dimC < rank, 0, "Index of the Channel dimension out of range: %i not in [%i,%i) ",
                 INT_ARG(0), -rank, rank);
  }
  REQUIRE_TRUE(input->sizeAt(dimC) == 3, 0, "RGBtoYIQ: operation expects 3 channels (R, G, B), but got %i instead",
               input->sizeAt(dimC));

  helpers::transformRgbYiq(block.launchContext(), input, output, dimC);

  return sd::Status::OK;
}

DECLARE_TYPES(rgb_to_yiq) { getOpDescriptor()->setAllowedInputTypes({ALL_FLOATS})->setSameMode(true); }
}  // namespace ops
}  // namespace sd

#endif