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/*
* ******************************************************************************
* *
* *
* * 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.
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* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.linalg.api.ops;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.shape.LongShapeDescriptor;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public abstract class BaseTransformSameOp extends BaseTransformOp implements TransformSameOp {
public BaseTransformSameOp(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2) {
super(sameDiff, i_v1, i_v2);
}
public BaseTransformSameOp(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2, boolean inPlace) {
super(sameDiff, i_v1, i_v2, inPlace);
}
public BaseTransformSameOp(SameDiff sameDiff) {
super(sameDiff);
}
public BaseTransformSameOp(SameDiff sameDiff, SDVariable i_v1, SDVariable i_v2, Object[] extraArgs) {
super(sameDiff, i_v1, i_v2, extraArgs);
}
public BaseTransformSameOp(SameDiff sameDiff, SDVariable i_v, boolean inPlace) {
super(sameDiff, i_v, inPlace);
}
public BaseTransformSameOp(SameDiff sameDiff, SDVariable i_v, long[] shape, boolean inPlace, Object[] extraArgs) {
super(sameDiff, i_v, shape, inPlace, extraArgs);
}
public BaseTransformSameOp(SameDiff sameDiff, SDVariable i_v, Object[] extraArgs) {
super(sameDiff, i_v, extraArgs);
}
public BaseTransformSameOp(INDArray x, INDArray z) {
super(x, z);
}
public BaseTransformSameOp(INDArray x, INDArray y, INDArray z){
super(x,y,z);
}
public BaseTransformSameOp() {
super();
}
public BaseTransformSameOp(INDArray x) {
super(x);
}
@Override
public Type getOpType() {
return Type.TRANSFORM_SAME;
}
@Override
public Type opType() {
return Type.TRANSFORM_SAME;
}
@Override
public DataType resultType() {
return this.x().dataType();
}
@Override
public DataType resultType(OpContext oc) {
return oc.getInputArray(0).dataType();
}
@Override
public boolean validateDataTypes(OpContext oc, boolean experimentalMode) {
INDArray x = oc != null ? oc.getInputArray(0) : x();
INDArray y = oc != null ? oc.getInputArray(1) : y();
INDArray z = oc != null ? oc.getOutputArray(0) : z();
if (y != null) {
Preconditions.checkArgument(x.dataType() == y.dataType(), "Op.X type must be the same as Op.Y type: x.datatype=%s, y.datatype=%s for op %s",
x.dataType(), y.dataType(), getClass());
}
if (z != null)
Preconditions.checkArgument(z.dataType() == x.dataType(), "Op.Z must be the same as Op.X type: x.datatype=%s, z.datatype=%s for op %s",
x.dataType(), z.dataType(), getClass());
return true;
}
@Override
public List calculateOutputShape() {
return calculateOutputShape(null);
}
@Override
public List calculateOutputShape(OpContext oc) {
INDArray x = oc != null ? oc.getInputArray(0) : x();
if(x == null)
return Collections.emptyList();
return Collections.singletonList(LongShapeDescriptor.fromShape(x.shape(), x.dataType()));
}
@Override
public List calculateOutputDataTypes(List dataTypes){
//All same transform ops: always same output type as input type
Preconditions.checkState(dataTypes != null, "Expected exactly 1 or more input datatype for %s, got input %s", getClass(), dataTypes);
org.nd4j.linalg.api.buffer.DataType check = null;
for(org.nd4j.linalg.api.buffer.DataType dataType : dataTypes) {
if(check != null) {
Preconditions.checkState(dataType == check,"Data types must all be the same!");
} else {
check = dataType;
}
}
return Arrays.asList(dataTypes.get(0));
}
}