69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
/*
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* Copyright (c) 2017 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "Magnitude.h"
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namespace arm_compute
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{
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namespace test
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{
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namespace validation
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{
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namespace reference
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{
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template <typename T>
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SimpleTensor<T> magnitude(const SimpleTensor<T> &gx, const SimpleTensor<T> &gy, MagnitudeType magnitude_type)
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{
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SimpleTensor<T> mag(gx.shape(), gx.data_type());
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using intermediate_type = typename common_promoted_unsigned_type<T>::intermediate_type;
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for(int i = 0; i < gx.num_elements(); ++i)
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{
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double val = 0.f;
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if(magnitude_type == MagnitudeType::L1NORM)
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{
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val = static_cast<intermediate_type>(std::abs(gx[i])) + static_cast<intermediate_type>(std::abs(gy[i]));
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}
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else // MagnitudeType::L2NORM
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{
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// Note: kernel saturates to uint32_t instead of intermediate_type for S32 format
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auto sum = static_cast<uint32_t>(gx[i] * gx[i]) + static_cast<uint32_t>(gy[i] * gy[i]);
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val = std::sqrt(sum) + 0.5f;
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}
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mag[i] = saturate_cast<T>(val);
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}
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return mag;
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}
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template SimpleTensor<int16_t> magnitude(const SimpleTensor<int16_t> &gx, const SimpleTensor<int16_t> &gy, MagnitudeType magnitude_type);
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template SimpleTensor<int32_t> magnitude(const SimpleTensor<int32_t> &gx, const SimpleTensor<int32_t> &gy, MagnitudeType magnitude_type);
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template SimpleTensor<half_float::half> magnitude(const SimpleTensor<half_float::half> &gx, const SimpleTensor<half_float::half> &gy, MagnitudeType magnitude_type);
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} // namespace reference
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} // namespace validation
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} // namespace test
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} // namespace arm_compute
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