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/*
* Copyright (c) 2019 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.
*/
#ifndef __LOCOEX_IR_TFLNODES_H__
#define __LOCOEX_IR_TFLNODES_H__
#include "TFLNodeDecl.h"
#include "TFLOpcode.h"
#include <loco/IR/Node.h>
#include <loco/IR/NodeMixins.h>
#include <array>
namespace locoex
{
/**
* @brief Nodes with the fixed number of inputs
*/
template <unsigned N, typename Base> class FixedArityNode : public Base
{
public:
FixedArityNode()
{
for (uint32_t n = 0; n < N; ++n)
{
_args[n] = std::unique_ptr<loco::Use>(new loco::Use{this});
}
}
virtual ~FixedArityNode() = default;
public:
unsigned arity(void) const final { return N; }
loco::Node *arg(uint32_t n) const final { return _args.at(n)->node(); }
void drop(void) final
{
for (uint32_t n = 0; n < N; ++n)
{
_args.at(n)->node(nullptr);
}
}
protected:
// This API allows inherited classes to access "_args" field.
loco::Use *at(unsigned n) const { return _args.at(n).get(); }
private:
std::array<std::unique_ptr<loco::Use>, N> _args;
};
enum class FusedActFunc
{
UNDEFINED, // This is not defined by TFLite. This was added to prevent programming error.
NONE,
RELU,
RELU6
};
enum class Padding
{
UNDEFINED, // This is not defined by TFLite. This was added to prevent programming error.
SAME,
VALID,
};
class Filter final
{
public:
Filter() : _w(1), _h(1) {}
int32_t w() const { return _w; }
void w(int32_t w) { _w = w; }
int32_t h() const { return _h; }
void h(int32_t h) { _h = h; }
private:
int32_t _w;
int32_t _h;
};
class Stride final
{
public:
Stride() : _w(1), _h(1) {}
int32_t w() const { return _w; }
void w(int32_t w) { _w = w; }
int32_t h() const { return _h; }
void h(int32_t h) { _h = h; }
private:
int32_t _w;
int32_t _h;
};
/**
* @brief ADD in TensorFlow Lite
*/
class TFLAdd final : public FixedArityNode<2, TFLNodeImpl<TFLOpcode::ADD>>
{
public:
TFLAdd() = default;
public:
loco::Node *x(void) const { return at(0)->node(); }
void x(loco::Node *node) { at(0)->node(node); }
loco::Node *y(void) const { return at(1)->node(); }
void y(loco::Node *node) { at(1)->node(node); }
};
/**
* @brief AVERAGE_POOL_2D in TensorFlow Lite
*/
class TFLAveragePool2D final : public FixedArityNode<1, TFLNodeImpl<TFLOpcode::AVERAGE_POOL_2D>>
{
public:
TFLAveragePool2D()
: _fused_act_fun(FusedActFunc::UNDEFINED), _padding(Padding::UNDEFINED) { /* empty */}
public:
loco::Node *value(void) const { return at(0)->node(); }
void value(loco::Node *node) { at(0)->node(node); }
FusedActFunc fusedActivationFunction() const { return _fused_act_fun; }
void fusedActivationFunction(FusedActFunc fused_act_fun) { _fused_act_fun = fused_act_fun; }
Padding padding() const { return _padding; }
void padding(Padding padding) { _padding = padding; }
const Filter *filter(void) const { return &_filter; }
Filter *filter(void) { return &_filter; }
const Stride *stride(void) const { return &_stride; }
Stride *stride(void) { return &_stride; }
private:
FusedActFunc _fused_act_fun;
Padding _padding;
Stride _stride;
Filter _filter;
};
// TODO TFLConcatenation
// TODO TFLConv2D
// TODO TFLDepthwiseConv2D
// TODO TFLDiv
/**
* @brief MAX_POOL_2D in TensorFlow Lite
*/
class TFLMaxPool2D final : public FixedArityNode<1, TFLNodeImpl<TFLOpcode::MAX_POOL_2D>>
{
public:
TFLMaxPool2D()
: _fused_act_fun(FusedActFunc::UNDEFINED), _padding(Padding::UNDEFINED) { /* empty */}
public:
loco::Node *value(void) const { return at(0)->node(); }
void value(loco::Node *node) { at(0)->node(node); }
FusedActFunc fusedActivationFunction() const { return _fused_act_fun; }
void fusedActivationFunction(FusedActFunc fused_act_fun) { _fused_act_fun = fused_act_fun; }
Padding padding() const { return _padding; }
void padding(Padding padding) { _padding = padding; }
const Filter *filter(void) const { return &_filter; }
Filter *filter(void) { return &_filter; }
const Stride *stride(void) const { return &_stride; }
Stride *stride(void) { return &_stride; }
private:
FusedActFunc _fused_act_fun;
Padding _padding;
Stride _stride;
Filter _filter;
};
/**
* @brief MUL in TensorFlow Lite
*/
class TFLMul final : public FixedArityNode<2, TFLNodeImpl<TFLOpcode::MUL>>
{
public:
TFLMul() = default;
public:
loco::Node *x(void) const { return at(0)->node(); }
void x(loco::Node *node) { at(0)->node(node); }
loco::Node *y(void) const { return at(1)->node(); }
void y(loco::Node *node) { at(1)->node(node); }
};
class TFLRelu final : public FixedArityNode<1, TFLNodeImpl<TFLOpcode::RELU>>
{
public:
TFLRelu() = default;
public:
loco::Node *features(void) const { return at(0)->node(); }
void features(loco::Node *node) { at(0)->node(node); }
};
// TODO TFLRelu6
// TODO TFLReshape
// TODO TFLSoftmax
// TODO TFLSqrt
// TODO TFLSub
// TODO TFLTanh
// TODO TFLTranspose
// TODO define more children of TFLNode
} // namespace locoex
#endif // __LOCOEX_IR_TFLNODES_H__
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