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/*
* Copyright (c) 2018 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 __NNKIT_TENSOR_CONTEXT_H__
#define __NNKIT_TENSOR_CONTEXT_H__
#include <nncc/core/ADT/tensor/Shape.h>
#include <nncc/core/ADT/tensor/Reader.h>
#include <nncc/core/ADT/tensor/Accessor.h>
#include <string>
#include <functional>
#include <stdexcept>
#include <cstdint>
namespace nnkit
{
// NOTE This interface is subject to change.
struct TensorContext
{
template <typename T>
using TypedReader = std::function<void(const TensorContext &, uint32_t n,
const nncc::core::ADT::tensor::Reader<T> &)>;
template <typename T>
using TypedAccessor = std::function<void(const TensorContext &, uint32_t n,
nncc::core::ADT::tensor::Accessor<T> &)>;
virtual ~TensorContext() = default;
// The number of tensors that this context provides
virtual uint32_t size(void) const = 0;
// Query on properties of each tensor
virtual std::string name(uint32_t n) const = 0;
virtual nncc::core::ADT::tensor::Shape shape(uint32_t n) const = 0;
// TODO Support generic byte tensor
// TODO Support typed tensor for primitive types such as half(fp16), double(fp64), int8(s8),
// uint8(u8), uint(u32)
// Float (fp32) tensor support
virtual bool isFloatTensor(uint32_t n) const
{
throw std::runtime_error("This method should be overriden");
}
virtual void getMutableFloatTensor(uint32_t n, const TypedAccessor<float> &cb)
{
throw std::runtime_error("This method should be overriden");
}
virtual void getConstFloatTensor(uint32_t n, const TypedReader<float> &cb) const
{
throw std::runtime_error("This method should be overriden");
}
// S32
virtual bool isS32Tensor(uint32_t n) const
{
throw std::runtime_error("This method should be overriden");
}
virtual void getMutableS32Tensor(uint32_t n, const TypedAccessor<int32_t> &cb)
{
throw std::runtime_error("This method should be overriden");
}
virtual void getConstS32Tensor(uint32_t n, const TypedReader<int32_t> &cb) const
{
throw std::runtime_error("This method should be overriden");
}
};
} // namespace nnkit
#endif // __NNKIT_TENSOR_CONTEXT_H__
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