113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
/* ******************************************************************************
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*
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author Yurii Shyrma (iuriish@yahoo.com), created on 02.11.2017
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//
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#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_reverse)
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#include <ops/declarable/CustomOperations.h>
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#include <ops/declarable/helpers/reverse.h>
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namespace sd {
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namespace ops {
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CONFIGURABLE_OP_IMPL(reverse, 1, 1, true, 0, -2) {
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auto input = INPUT_VARIABLE(0);
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auto output = OUTPUT_VARIABLE(0);
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if(output->isEmpty()){
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//No-op
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return Status::OK();
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}
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std::vector<int> axis;
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if (block.width() > 1)
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axis = INPUT_VARIABLE(1)->template asVectorT<int>();
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else if (block.numI() > 0)
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axis = *block.getIArguments();
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if(axis.empty()) { // do not perform reversion
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if (!block.isInplace())
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output->assign(input);
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}
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else {
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// check the consistency of input dimensions to reverse along
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shape::checkDimensions(input->rankOf(), axis);
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helpers::reverse(block.launchContext(), input, output, &axis);
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}
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return Status::OK();
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}
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DECLARE_SYN(reverse_v2, reverse);
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DECLARE_TYPES(reverse) {
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getOpDescriptor()->setAllowedInputTypes(0, DataType::ANY);
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getOpDescriptor()->setAllowedInputTypes(1, {DataType::INT32, DataType::INT64});
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getOpDescriptor()->setAllowedOutputTypes(0, DataType::INHERIT);
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}
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CUSTOM_OP_IMPL(reverse_bp, 2, 1, false, 0, -2) {
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auto input = INPUT_VARIABLE(0);
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auto eps = block.width() == 3 ? INPUT_VARIABLE(2) : INPUT_VARIABLE(1);
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auto output = OUTPUT_VARIABLE(0);
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std::vector<int> axis;
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if (block.width() == 3)
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axis = INPUT_VARIABLE(1)->template asVectorT<int>();
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else if (block.numI() > 0)
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axis = *block.getIArguments();
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if(axis.empty()) { // reversion is not performed in this case
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output->assign(eps);
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}
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else {
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// check the consistency of input dimensions to reverse along
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shape::checkDimensions(input->rankOf(), axis);
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// we just reverse back original array
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helpers::reverse(block.launchContext(), eps, output, &axis);
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}
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return Status::OK();
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}
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DECLARE_TYPES(reverse_bp) {
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getOpDescriptor()
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->setAllowedInputTypes(sd::DataType::ANY)
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->setAllowedOutputTypes({ALL_FLOATS});
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}
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DECLARE_SHAPE_FN(reverse_bp) {
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auto in = inputShape->at(0);
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Nd4jLong *out;
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COPY_SHAPE(in, out);
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return SHAPELIST(CONSTANT(out));
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}
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}
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}
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#endif |