telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2017 Arm Ltd. All rights reserved. |
David Beck | ecb56cd | 2018-09-05 12:52:57 +0100 | [diff] [blame] | 3 | // SPDX-License-Identifier: MIT |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 4 | // |
Jim Flynn | e242f2d | 2019-05-22 14:24:13 +0100 | [diff] [blame] | 5 | |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 6 | #pragma once |
| 7 | |
Jan Eilers | 8eb2560 | 2020-03-09 12:13:48 +0000 | [diff] [blame] | 8 | #include <armnn/utility/IgnoreUnused.hpp> |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 9 | #include <armnn/utility/NumericCast.hpp> |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 10 | #include <armnn/TypesUtils.hpp> |
| 11 | |
Narumol Prangnawarat | 44179c3 | 2020-03-11 14:51:27 +0000 | [diff] [blame] | 12 | #include <BFloat16.hpp> |
Matthew Jackson | 9bff144 | 2019-09-12 09:08:23 +0100 | [diff] [blame] | 13 | #include <Half.hpp> |
| 14 | |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 15 | #include <initializer_list> |
| 16 | #include <iterator> |
| 17 | #include <vector> |
Aron Virginas-Tar | d4f0fea | 2019-04-09 14:08:06 +0100 | [diff] [blame] | 18 | |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 19 | namespace armnnUtils |
| 20 | { |
| 21 | |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 22 | template<typename T, bool DoQuantize=true> |
| 23 | struct SelectiveQuantizer |
| 24 | { |
| 25 | static T Quantize(float value, float scale, int32_t offset) |
| 26 | { |
| 27 | return armnn::Quantize<T>(value, scale, offset); |
| 28 | } |
| 29 | |
| 30 | static float Dequantize(T value, float scale, int32_t offset) |
| 31 | { |
| 32 | return armnn::Dequantize(value, scale, offset); |
| 33 | } |
| 34 | }; |
| 35 | |
| 36 | template<typename T> |
| 37 | struct SelectiveQuantizer<T, false> |
| 38 | { |
| 39 | static T Quantize(float value, float scale, int32_t offset) |
| 40 | { |
Jan Eilers | 8eb2560 | 2020-03-09 12:13:48 +0000 | [diff] [blame] | 41 | armnn::IgnoreUnused(scale, offset); |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 42 | return value; |
| 43 | } |
| 44 | |
| 45 | static float Dequantize(T value, float scale, int32_t offset) |
| 46 | { |
Jan Eilers | 8eb2560 | 2020-03-09 12:13:48 +0000 | [diff] [blame] | 47 | armnn::IgnoreUnused(scale, offset); |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 48 | return value; |
| 49 | } |
| 50 | }; |
| 51 | |
Matthew Jackson | 9bff144 | 2019-09-12 09:08:23 +0100 | [diff] [blame] | 52 | template<> |
| 53 | struct SelectiveQuantizer<armnn::Half, false> |
| 54 | { |
| 55 | static armnn::Half Quantize(float value, float scale, int32_t offset) |
| 56 | { |
Jan Eilers | 8eb2560 | 2020-03-09 12:13:48 +0000 | [diff] [blame] | 57 | armnn::IgnoreUnused(scale, offset); |
Matthew Jackson | 9bff144 | 2019-09-12 09:08:23 +0100 | [diff] [blame] | 58 | return armnn::Half(value); |
| 59 | } |
| 60 | |
| 61 | static float Dequantize(armnn::Half value, float scale, int32_t offset) |
| 62 | { |
Jan Eilers | 8eb2560 | 2020-03-09 12:13:48 +0000 | [diff] [blame] | 63 | armnn::IgnoreUnused(scale, offset); |
Matthew Jackson | 9bff144 | 2019-09-12 09:08:23 +0100 | [diff] [blame] | 64 | return value; |
| 65 | } |
| 66 | }; |
| 67 | |
Narumol Prangnawarat | 44179c3 | 2020-03-11 14:51:27 +0000 | [diff] [blame] | 68 | template<> |
| 69 | struct SelectiveQuantizer<armnn::BFloat16, false> |
| 70 | { |
| 71 | static armnn::BFloat16 Quantize(float value, float scale, int32_t offset) |
| 72 | { |
| 73 | armnn::IgnoreUnused(scale, offset); |
| 74 | return armnn::BFloat16(value); |
| 75 | } |
| 76 | |
| 77 | static float Dequantize(armnn::BFloat16 value, float scale, int32_t offset) |
| 78 | { |
| 79 | armnn::IgnoreUnused(scale, offset); |
| 80 | return value; |
| 81 | } |
| 82 | }; |
| 83 | |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 84 | template<typename T> |
| 85 | T SelectiveQuantize(float value, float scale, int32_t offset) |
| 86 | { |
| 87 | return SelectiveQuantizer<T, armnn::IsQuantizedType<T>()>::Quantize(value, scale, offset); |
| 88 | }; |
| 89 | |
| 90 | template<typename T> |
| 91 | float SelectiveDequantize(T value, float scale, int32_t offset) |
| 92 | { |
| 93 | return SelectiveQuantizer<T, armnn::IsQuantizedType<T>()>::Dequantize(value, scale, offset); |
| 94 | }; |
| 95 | |
| 96 | template<typename ItType> |
| 97 | struct IsFloatingPointIterator |
| 98 | { |
| 99 | static constexpr bool value=std::is_floating_point<typename std::iterator_traits<ItType>::value_type>::value; |
| 100 | }; |
| 101 | |
| 102 | template <typename T, typename FloatIt, |
telsoa01 | c577f2c | 2018-08-31 09:22:23 +0100 | [diff] [blame] | 103 | typename std::enable_if<IsFloatingPointIterator<FloatIt>::value, int>::type=0 // Makes sure fp iterator is valid. |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 104 | > |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 105 | std::vector<T> QuantizedVector(FloatIt first, FloatIt last, float qScale, int32_t qOffset) |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 106 | { |
| 107 | std::vector<T> quantized; |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 108 | quantized.reserve(armnn::numeric_cast<size_t>(std::distance(first, last))); |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 109 | |
| 110 | for (auto it = first; it != last; ++it) |
| 111 | { |
| 112 | auto f = *it; |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 113 | T q = SelectiveQuantize<T>(f, qScale, qOffset); |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 114 | quantized.push_back(q); |
| 115 | } |
| 116 | |
| 117 | return quantized; |
| 118 | } |
| 119 | |
| 120 | template<typename T> |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 121 | std::vector<T> QuantizedVector(const std::vector<float>& array, float qScale = 1.f, int32_t qOffset = 0) |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 122 | { |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 123 | return QuantizedVector<T>(array.begin(), array.end(), qScale, qOffset); |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | template<typename T> |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 127 | std::vector<T> QuantizedVector(std::initializer_list<float> array, float qScale = 1.f, int32_t qOffset = 0) |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 128 | { |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 129 | return QuantizedVector<T>(array.begin(), array.end(), qScale, qOffset); |
telsoa01 | 4fcda01 | 2018-03-09 14:13:49 +0000 | [diff] [blame] | 130 | } |
Aron Virginas-Tar | 48623a0 | 2019-10-22 10:00:28 +0100 | [diff] [blame] | 131 | |
| 132 | } // namespace armnnUtils |