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/*
* Copyright (c) 2020 Samsung Electronics Co., Ltd. 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 "luci/Import/CircleReader.h"
#include <memory>
#include <sstream>
#include <string>
namespace luci
{
bool is_valid(const circle::OperatorCodeT &opcode)
{
circle::BuiltinOperator code = opcode.builtin_code;
return (circle::BuiltinOperator_MIN <= code && code <= circle::BuiltinOperator_MAX);
}
bool is_custom(const circle::OperatorCodeT &opcode)
{
circle::BuiltinOperator code = opcode.builtin_code;
return (code == circle::BuiltinOperator_CUSTOM);
}
std::string opcode_name(const circle::OperatorCodeT &opcode)
{
if (!is_valid(opcode))
{
std::ostringstream oss;
oss << "(invalid)";
return oss.str();
}
if (is_custom(opcode))
{
if (opcode.custom_code.empty())
return "(invalid custom)";
return opcode.custom_code;
}
circle::BuiltinOperator code = opcode.builtin_code;
return circle::EnumNameBuiltinOperator(code);
}
const char *tensor_name(const circle::TensorT &tensor)
{
static const char *kEmptyTensorName = "(noname)";
if (!tensor.name.empty())
return tensor.name.c_str();
return kEmptyTensorName;
}
const circle::QuantizationParametersT *tensor_quantization(const circle::TensorT &tensor)
{
return tensor.quantization.get();
}
loco::DataType luci_datatype(const circle::TensorType type)
{
switch (type)
{
case circle::TensorType_FLOAT32:
return loco::DataType::FLOAT32;
case circle::TensorType_FLOAT16:
return loco::DataType::FLOAT16;
case circle::TensorType_INT32:
return loco::DataType::S32;
case circle::TensorType_UINT8:
return loco::DataType::U8;
case circle::TensorType_INT64:
return loco::DataType::S64;
case circle::TensorType_STRING:
break;
case circle::TensorType_BOOL:
return loco::DataType::BOOL;
case circle::TensorType_INT16:
return loco::DataType::S16;
case circle::TensorType_COMPLEX64:
break;
case circle::TensorType_INT8:
return loco::DataType::S8;
default:
break;
}
assert(false);
return loco::DataType::Unknown;
}
FusedActFunc luci_actfunc(const circle::ActivationFunctionType type)
{
switch (type)
{
case circle::ActivationFunctionType::ActivationFunctionType_NONE:
return luci::FusedActFunc::NONE;
case circle::ActivationFunctionType::ActivationFunctionType_RELU:
return luci::FusedActFunc::RELU;
case circle::ActivationFunctionType::ActivationFunctionType_RELU_N1_TO_1:
return luci::FusedActFunc::RELU_N1_TO_1;
case circle::ActivationFunctionType::ActivationFunctionType_RELU6:
return luci::FusedActFunc::RELU6;
case circle::ActivationFunctionType::ActivationFunctionType_TANH:
break;
default:
break;
}
assert(false);
return luci::FusedActFunc::UNDEFINED;
}
Padding luci_padding(const circle::Padding padding)
{
switch (padding)
{
case circle::Padding::Padding_SAME:
return Padding::SAME;
case circle::Padding::Padding_VALID:
return Padding::VALID;
}
assert(false);
return Padding::UNDEFINED;
}
std::unique_ptr<CircleQuantParam>
luci_quantparam(const circle::QuantizationParametersT *quantization)
{
const auto &min = quantization->min;
const auto &max = quantization->max;
const auto &scale = quantization->scale;
const auto &zero_point = quantization->zero_point;
if ((!min.empty() && !max.empty()) || (!scale.empty() && !zero_point.empty()))
{
auto quantparam = std::make_unique<CircleQuantParam>();
quantparam->min = min;
quantparam->max = max;
quantparam->scale = scale;
quantparam->zerop = zero_point;
return quantparam;
}
return nullptr;
}
circle::BuiltinOperator CircleReader::builtin_code(const circle::OperatorT &op) const
{
const auto &op_codes = opcodes();
uint32_t index = op.opcode_index;
assert(index < op_codes.size());
const circle::OperatorCodeT &opcode = *op_codes[index];
return opcode.builtin_code;
}
std::string CircleReader::opcode_name(const circle::OperatorT &op) const
{
const auto &op_codes = opcodes();
uint32_t index = op.opcode_index;
assert(index < op_codes.size());
const circle::OperatorCodeT &opcode = *op_codes[index];
if (!is_valid(opcode))
{
std::ostringstream oss;
oss << "(invalid: " << index << ")";
return oss.str();
}
return ::luci::opcode_name(opcode);
}
bool CircleReader::parse(const circle::Model *model)
{
assert(model != nullptr);
_model.reset(model->UnPack());
return true;
}
bool CircleReader::select_subgraph(uint32_t sgindex)
{
if (_model->subgraphs.size() <= sgindex)
{
assert(false);
return false;
}
_current_subgraph = _model->subgraphs[sgindex].get();
return true;
}
} // namespace luci
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