2 * Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #include "DepthToSpace.h"
19 #include <tensorflow/lite/kernels/internal/optimized/optimized_ops.h>
21 namespace luci_interpreter
26 DepthToSpace::DepthToSpace(const Tensor *input, Tensor *output, const DepthToSpaceParams ¶ms)
27 : KernelWithParams<DepthToSpaceParams>({input}, {output}, params)
31 void DepthToSpace::configure()
33 if (input()->shape().num_dims() != 4)
35 throw std::runtime_error("Invalid input num_dims.");
37 if (output()->element_type() != DataType::FLOAT32 && output()->element_type() != DataType::U8 &&
38 output()->element_type() != DataType::S8 && output()->element_type() != DataType::S32 &&
39 output()->element_type() != DataType::S64)
41 throw std::runtime_error("Invalid output type");
43 if (input()->element_type() != output()->element_type())
45 throw std::runtime_error("Type mismatch on input and output.");
47 const int block_size = params().block_size;
48 const int32_t input_height = input()->shape().dim(1);
49 const int32_t input_width = input()->shape().dim(2);
50 const int32_t input_channels = input()->shape().dim(3);
51 int32_t output_height = input_height * block_size;
52 int32_t output_width = input_width * block_size;
53 int32_t output_channels = input_channels / block_size / block_size;
55 assert(input_height == output_height / block_size);
56 assert(input_width == output_width / block_size);
57 assert(input_channels == output_channels * block_size * block_size);
59 Shape output_shape(4);
60 output_shape.dim(0) = input()->shape().dim(0);
61 output_shape.dim(1) = output_height;
62 output_shape.dim(2) = output_width;
63 output_shape.dim(3) = output_channels;
65 output()->resize(output_shape);
68 void DepthToSpace::execute() const
70 tflite::DepthToSpaceParams op_params;
71 op_params.block_size = params().block_size;
72 switch (input()->element_type())
74 case DataType::FLOAT32:
75 tflite::optimized_ops::DepthToSpace(op_params, getTensorShape(input()),
76 getTensorData<float>(input()), getTensorShape(output()),
77 getTensorData<float>(output()));
80 tflite::optimized_ops::DepthToSpace(op_params, getTensorShape(input()),
81 getTensorData<uint8_t>(input()), getTensorShape(output()),
82 getTensorData<uint8_t>(output()));
85 throw std::runtime_error("Unsupported Type.");
89 } // namespace kernels
90 } // namespace luci_interpreter