diff options
Diffstat (limited to 'tensorflow/contrib/lite/toco/graph_transformations/resolve_pad_attributes.cc')
-rw-r--r-- | tensorflow/contrib/lite/toco/graph_transformations/resolve_pad_attributes.cc | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tensorflow/contrib/lite/toco/graph_transformations/resolve_pad_attributes.cc b/tensorflow/contrib/lite/toco/graph_transformations/resolve_pad_attributes.cc new file mode 100644 index 0000000000..d5f5869c62 --- /dev/null +++ b/tensorflow/contrib/lite/toco/graph_transformations/resolve_pad_attributes.cc @@ -0,0 +1,55 @@ +/* Copyright 2017 The TensorFlow Authors. All Rights Reserved. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://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. +==============================================================================*/ +#include <memory> +#include <string> +#include <unordered_map> +#include <vector> + +#include "tensorflow/contrib/lite/toco/graph_transformations/graph_transformations.h" +#include "tensorflow/contrib/lite/toco/model.h" +#include "tensorflow/contrib/lite/toco/tooling_util.h" +#include "tensorflow/core/platform/logging.h" + +namespace toco { + +bool ResolvePadAttributes::Run(Model* model, std::size_t op_index) { + const auto pad_it = model->operators.begin() + op_index; + auto* pad_op = pad_it->get(); + if (pad_op->type != OperatorType::kPad) return false; + + auto* op = static_cast<PadOperator*>(pad_op); + if (!op->left_padding.empty()) return false; + + CHECK_EQ(op->inputs.size(), 2); + if (!IsConstantParameterArray(*model, op->inputs[1])) return false; + + const auto& array = *model->arrays[op->inputs[1]]; + if (!array.has_shape()) return false; + + const std::vector<int>& dims = array.shape().dims(); + CHECK_EQ(dims.size(), 2); + + std::vector<int> buffer = array.GetBuffer<ArrayDataType::kInt32>().data; + + for (int i = 0; i < dims[0]; ++i) { + op->left_padding.push_back(buffer[i * 2]); + op->right_padding.push_back(buffer[i * 2 + 1]); + } + + // TODO(dkalenichenko): Delete the extra input? + + return true; +} +} // namespace toco |