forked from huawei/mindspore2022
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/**
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* Copyright 2019 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "nnacl/split.h"
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#include "nnacl/split_parameter.h"
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#include <string.h>
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#include "nnacl/errorcode.h"
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int DoSplit(float *in_data, float **out_data, const int *input_shape, int offset, int num_unit,
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SplitParameter *split_param) {
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if (in_data == NULL || out_data == NULL) {
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return NNACL_ERR;
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}
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int num_split = split_param->num_split_;
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int *split_sizes = split_param->split_sizes_;
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int *strides = split_param->strides_;
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int split_dim = split_param->split_dim_;
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int in_stride = strides[split_dim];
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float *src;
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int size_float = (int)(sizeof(float));
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int in_stride_bytes = in_stride * size_float;
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int split_which;
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int split_times;
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int stride_per_split = in_stride * input_shape[split_dim];
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split_which = offset % num_split;
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split_times = offset / num_split;
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src = in_data + split_times * stride_per_split;
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for (int i = 0; i < split_which; i++) {
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src += split_sizes[i] * in_stride;
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}
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for (int i = offset; i < offset + num_unit; i++) {
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split_which = i % num_split;
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split_times = i / num_split;
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int split_size = split_sizes[split_which];
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float *dst = out_data[split_which] + split_times * in_stride * split_size;
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(void)memcpy(dst, src, split_size * in_stride_bytes);
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src += split_size * in_stride;
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}
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return NNACL_OK;
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}
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