69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
/*******************************************************************************
|
|
* Copyright (c) 2015-2018 Skymind, Inc.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 raver119@gmail.com
|
|
//
|
|
|
|
#ifndef DEV_TESTS_FLATTEN_H
|
|
#define DEV_TESTS_FLATTEN_H
|
|
|
|
#include <vector>
|
|
#include <NDArray.h>
|
|
|
|
namespace nd4j {
|
|
namespace ops {
|
|
namespace helpers {
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
void flatten(nd4j::LaunchContext *context, std::vector<NDArray*> &inputs, NDArray *output, char order);
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
INLINEDEF _CUDA_HD Nd4jLong getIndexOffsetOrdered(Nd4jLong index, const Nd4jLong *shapeInfo, const char order) {
|
|
|
|
Nd4jLong offset = 0;
|
|
|
|
if (order == 'c') {
|
|
|
|
for(uint i = shapeInfo[0]; i > 1; --i) {
|
|
offset += (index % shapeInfo[i]) * shapeInfo[i + shapeInfo[0]];
|
|
index /= shapeInfo[i];
|
|
}
|
|
|
|
offset += index * shapeInfo[1 + shapeInfo[0]]; // last iteration
|
|
}
|
|
else {
|
|
|
|
for(uint i = 1; i < shapeInfo[0]; ++i) {
|
|
offset += (index % shapeInfo[i]) * shapeInfo[i + shapeInfo[0]];
|
|
index /= shapeInfo[i];
|
|
}
|
|
|
|
offset += index * shapeInfo[2 * shapeInfo[0]]; // last iteration
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif //DEV_TESTS_FLATTEN_H
|