1 /**
2 * Copyright 2023 Huawei Technologies Co., Ltd
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "nnacl/kernel/non_zero.h"
18 #include "nnacl/kernel/default_kernel_base.h"
19 #include "nnacl/tensor_c_utils.h"
20
NonZeroCompute(KernelBase * self)21 int NonZeroCompute(KernelBase *self) {
22 TensorC *input = self->in_[FIRST_INPUT];
23 NNACL_CHECK_NULL_RETURN_ERR(input);
24 TensorC *output = self->out_[OUTPUT_INDEX];
25 NNACL_CHECK_NULL_RETURN_ERR(output);
26
27 NNACL_CHECK_FALSE(input->shape_size_ != DIMENSION_2D, NNACL_NON_ZERO_SHAPE_INVALID);
28
29 bool *input_data = (bool *)input->data_;
30 NNACL_CHECK_NULL_RETURN_ERR(input_data);
31 int *output_data = (int *)output->data_;
32 NNACL_CHECK_NULL_RETURN_ERR(output_data);
33
34 int non_zero_nums = output->shape_[Index1];
35 int non_zero_count = 0;
36
37 int *coordiate_values = (int *)self->env_->Alloc(self->env_->allocator_, input->shape_size_ * sizeof(int));
38 NNACL_MALLOC_CHECK_NULL_RETURN_ERR(coordiate_values);
39
40 for (int i = 0; i < GetElementNum(input); i += 1) {
41 if (input_data[i]) {
42 for (size_t j = 0; j < input->shape_size_; j++) {
43 output_data[non_zero_count + (int)j * non_zero_nums] = coordiate_values[j];
44 }
45 non_zero_count++;
46 }
47 for (size_t idx = input->shape_size_; idx >= 1; --idx) {
48 if (coordiate_values[idx - 1] != input->shape_[idx - 1] - 1) {
49 coordiate_values[idx - 1] = coordiate_values[idx - 1] + 1;
50 break;
51 }
52 coordiate_values[idx - 1] = 0;
53 }
54 }
55
56 return NNACL_OK;
57 }
58
CreateNonZero(OpParameter * param,int data_type)59 KernelBase *CreateNonZero(OpParameter *param, int data_type) {
60 NonZeroStruct *non_zero = (NonZeroStruct *)malloc(sizeof(NonZeroStruct));
61 NNACL_CHECK_NULL_RETURN_NULL(non_zero);
62 non_zero->base_.Release = DefaultRelease;
63 non_zero->base_.Prepare = DefaultPrepare2In1Out;
64 non_zero->base_.Resize = DefaultResize;
65 non_zero->base_.Compute = NonZeroCompute;
66 return (KernelBase *)non_zero;
67 }
68
69 REG_KERNEL_CREATOR(PrimType_NonZero, kNumberTypeBool, CreateNonZero)
70