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author | David Beck <david.beck@arm.com> | 2018-09-19 12:03:20 +0100 |
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committer | Matthew Bentham <matthew.bentham@arm.com> | 2018-10-10 16:16:56 +0100 |
commit | 10b4dfd8e9ccd7a03df7bb053ee1c644cb37f8ab (patch) | |
tree | 1ac5b4f415531e2ef759439ab8e113f177bea7c5 /src/backends/test/QuantizeHelper.hpp | |
parent | a3f165624b2cdfbced674af5a6e11856b1e746d9 (diff) | |
download | armnn-10b4dfd8e9ccd7a03df7bb053ee1c644cb37f8ab.tar.gz |
IVGCVSW-1897 : build infrastructure for the src/backends folder
Change-Id: I7ebafb675ccc77ad54d1deb01412a8379a5356bb
Diffstat (limited to 'src/backends/test/QuantizeHelper.hpp')
-rw-r--r-- | src/backends/test/QuantizeHelper.hpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/backends/test/QuantizeHelper.hpp b/src/backends/test/QuantizeHelper.hpp new file mode 100644 index 0000000000..bb4e561d59 --- /dev/null +++ b/src/backends/test/QuantizeHelper.hpp @@ -0,0 +1,91 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// SPDX-License-Identifier: MIT +// +#pragma once + +#include <armnn/ArmNN.hpp> +#include <armnn/TypesUtils.hpp> + +#include <initializer_list> +#include <iterator> +#include <vector> +#include <boost/core/ignore_unused.hpp> + +template<typename T, bool DoQuantize=true> +struct SelectiveQuantizer +{ + static T Quantize(float value, float scale, int32_t offset) + { + return armnn::Quantize<T>(value, scale, offset); + } + + static float Dequantize(T value, float scale, int32_t offset) + { + return armnn::Dequantize(value, scale, offset); + } +}; + +template<typename T> +struct SelectiveQuantizer<T, false> +{ + static T Quantize(float value, float scale, int32_t offset) + { + boost::ignore_unused(scale, offset); + return value; + } + + static float Dequantize(T value, float scale, int32_t offset) + { + boost::ignore_unused(scale, offset); + return value; + } +}; + +template<typename T> +T SelectiveQuantize(float value, float scale, int32_t offset) +{ + return SelectiveQuantizer<T, armnn::IsQuantizedType<T>()>::Quantize(value, scale, offset); +}; + +template<typename T> +float SelectiveDequantize(T value, float scale, int32_t offset) +{ + return SelectiveQuantizer<T, armnn::IsQuantizedType<T>()>::Dequantize(value, scale, offset); +}; + +template<typename ItType> +struct IsFloatingPointIterator +{ + static constexpr bool value=std::is_floating_point<typename std::iterator_traits<ItType>::value_type>::value; +}; + +template <typename T, typename FloatIt, +typename std::enable_if<IsFloatingPointIterator<FloatIt>::value, int>::type=0 // Makes sure fp iterator is valid. +> +std::vector<T> QuantizedVector(float qScale, int32_t qOffset, FloatIt first, FloatIt last) +{ + std::vector<T> quantized; + quantized.reserve(boost::numeric_cast<size_t>(std::distance(first, last))); + + for (auto it = first; it != last; ++it) + { + auto f = *it; + T q =SelectiveQuantize<T>(f, qScale, qOffset); + quantized.push_back(q); + } + + return quantized; +} + +template<typename T> +std::vector<T> QuantizedVector(float qScale, int32_t qOffset, const std::vector<float>& array) +{ + return QuantizedVector<T>(qScale, qOffset, array.begin(), array.end()); +} + +template<typename T> +std::vector<T> QuantizedVector(float qScale, int32_t qOffset, std::initializer_list<float> array) +{ + return QuantizedVector<T>(qScale, qOffset, array.begin(), array.end()); +} |