2 * Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
3 * Copyright 2019 The TensorFlow Authors. All Rights Reserved.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #include "SpaceToDepth.h"
20 #include "PALSpaceToDepth.h"
22 namespace luci_interpreter
27 SpaceToDepth::SpaceToDepth(const Tensor *input, Tensor *output, const SpaceToDepthParams ¶ms)
28 : KernelWithParams<SpaceToDepthParams>({input}, {output}, params)
32 void SpaceToDepth::configure()
34 assert(input()->shape().num_dims() == 4);
35 assert(output()->element_type() == DataType::FLOAT32 ||
36 output()->element_type() == DataType::U8 || output()->element_type() == DataType::S8 ||
37 output()->element_type() == DataType::S32 || output()->element_type() == DataType::S64);
38 assert(input()->element_type() == output()->element_type());
40 const int block_size = params().block_size;
41 const int32_t input_height = input()->shape().dim(1);
42 const int32_t input_width = input()->shape().dim(2);
43 int32_t output_height = input_height / block_size;
44 int32_t output_width = input_width / block_size;
46 assert(input_height == output_height * block_size);
47 assert(input_width == output_width * block_size);
49 Shape output_shape(4);
50 output_shape.dim(0) = input()->shape().dim(0);
51 output_shape.dim(1) = output_height;
52 output_shape.dim(2) = output_width;
53 output_shape.dim(3) = input()->shape().dim(3) * block_size * block_size;
54 // TODO: enable it only if kernel with dynamic shapes
55 output()->resize(output_shape);
58 void SpaceToDepth::execute() const
60 tflite::SpaceToDepthParams op_params{};
61 op_params.block_size = params().block_size;
62 switch (input()->element_type())
64 case DataType::FLOAT32:
65 luci_interpreter_pal::SpaceToDepth(op_params, getTensorShape(input()),
66 getTensorData<float>(input()), getTensorShape(output()),
67 getTensorData<float>(output()));
70 luci_interpreter_pal::SpaceToDepth(op_params, getTensorShape(input()),
71 getTensorData<uint8_t>(input()), getTensorShape(output()),
72 getTensorData<uint8_t>(output()));
75 assert(false && "Unsupported type.");
79 } // namespace kernels
80 } // namespace luci_interpreter