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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 "UserTensor.h"
#include "util/Exceptions.h"
#include "ir/DataType.h"
namespace onert
{
namespace backend
{
namespace builtin
{
size_t UserTensor::calcOffset(const ir::Coordinates &coords) const
{
size_t rank = getShape().rank();
size_t offset = 0;
for (size_t i = 0; i < rank; ++i)
{
offset = offset * getShape().dim(i) + coords[i];
}
offset *= sizeOfDataType(data_type());
return offset;
}
bool UserTensor::applyShape(const ir::Shape &new_shape)
{
// User tensors cannot be reallocated.
auto new_size = new_shape.num_elements() * ir::sizeOfDataType(data_type());
if (total_size() < new_size)
throw InsufficientBufferSizeException{"User given buffer size is too small."};
setShape(new_shape);
return true;
}
} // namespace builtin
} // namespace backend
} // namespace onert
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