Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2017 Arm Ltd. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | |
Matteo Martincigh | e011d20 | 2019-11-28 11:35:47 +0000 | [diff] [blame] | 6 | #include <armnnUtils/TensorUtils.hpp> |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 7 | |
Matteo Martincigh | e5b8eb9 | 2019-11-28 15:45:42 +0000 | [diff] [blame] | 8 | #include <armnn/backends/ITensorHandle.hpp> |
Narumol Prangnawarat | ac2770a | 2020-04-01 16:51:23 +0100 | [diff] [blame] | 9 | #include <armnn/utility/Assert.hpp> |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 10 | #include <armnn/utility/NumericCast.hpp> |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 11 | |
Colm Donelan | 5b5c222 | 2020-09-09 12:48:16 +0100 | [diff] [blame] | 12 | #include <fmt/format.h> |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 13 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 14 | using namespace armnn; |
| 15 | |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 16 | namespace armnnUtils |
| 17 | { |
| 18 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 19 | TensorShape GetTensorShape(unsigned int numberOfBatches, |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 20 | unsigned int numberOfChannels, |
| 21 | unsigned int height, |
| 22 | unsigned int width, |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 23 | const DataLayout dataLayout) |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 24 | { |
| 25 | switch (dataLayout) |
| 26 | { |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 27 | case DataLayout::NCHW: |
| 28 | return TensorShape({numberOfBatches, numberOfChannels, height, width}); |
| 29 | case DataLayout::NHWC: |
| 30 | return TensorShape({numberOfBatches, height, width, numberOfChannels}); |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 31 | default: |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 32 | throw InvalidArgumentException("Unknown data layout [" |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 33 | + std::to_string(static_cast<int>(dataLayout)) + |
| 34 | "]", CHECK_LOCATION()); |
| 35 | } |
| 36 | } |
| 37 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 38 | TensorInfo GetTensorInfo(unsigned int numberOfBatches, |
Nattapat Chaimanowong | 649dd95 | 2019-01-22 16:10:44 +0000 | [diff] [blame] | 39 | unsigned int numberOfChannels, |
| 40 | unsigned int height, |
| 41 | unsigned int width, |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 42 | const DataLayout dataLayout, |
| 43 | const DataType dataType) |
Nattapat Chaimanowong | 649dd95 | 2019-01-22 16:10:44 +0000 | [diff] [blame] | 44 | { |
| 45 | switch (dataLayout) |
| 46 | { |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 47 | case DataLayout::NCHW: |
| 48 | return TensorInfo({numberOfBatches, numberOfChannels, height, width}, dataType); |
| 49 | case DataLayout::NHWC: |
| 50 | return TensorInfo({numberOfBatches, height, width, numberOfChannels}, dataType); |
Nattapat Chaimanowong | 649dd95 | 2019-01-22 16:10:44 +0000 | [diff] [blame] | 51 | default: |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 52 | throw InvalidArgumentException("Unknown data layout [" |
Nattapat Chaimanowong | 649dd95 | 2019-01-22 16:10:44 +0000 | [diff] [blame] | 53 | + std::to_string(static_cast<int>(dataLayout)) + |
| 54 | "]", CHECK_LOCATION()); |
| 55 | } |
Nina Drozd | d41b259 | 2018-11-19 13:03:36 +0000 | [diff] [blame] | 56 | } |
| 57 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 58 | std::pair<float, float> FindMinMax(ITensorHandle* tensorHandle) |
Jim Flynn | f92dfce | 2019-05-02 11:33:25 +0100 | [diff] [blame] | 59 | { |
| 60 | auto tensor_data = static_cast<const float *>(tensorHandle->Map(true)); |
| 61 | auto tensor_size = tensorHandle->GetShape().GetNumElements(); |
| 62 | |
| 63 | // Set min/max initially to first value in tensor |
| 64 | float min = tensor_data[0]; |
| 65 | float max = tensor_data[0]; |
| 66 | |
| 67 | // Loop over rest of tensor and update min/max if necessary |
| 68 | for (unsigned int val = 1; val < tensor_size; val++) |
| 69 | { |
| 70 | if (tensor_data[val] < min) |
| 71 | { |
| 72 | min = tensor_data[val]; |
| 73 | } |
| 74 | else if (tensor_data[val] > max) |
| 75 | { |
| 76 | max = tensor_data[val]; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | tensorHandle->Unmap(); |
| 81 | |
| 82 | return std::make_pair(min, max); |
| 83 | } |
| 84 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 85 | TensorShape ExpandDims(const TensorShape& tensorShape, int axis) |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 86 | { |
| 87 | unsigned int outputDim = tensorShape.GetNumDimensions() + 1; |
| 88 | |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 89 | if (axis < -armnn::numeric_cast<int>(outputDim) || axis > armnn::numeric_cast<int>(tensorShape.GetNumDimensions())) |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 90 | { |
Colm Donelan | 5b5c222 | 2020-09-09 12:48:16 +0100 | [diff] [blame] | 91 | throw InvalidArgumentException(fmt::format("Invalid expansion axis {} for {}D input tensor. {}", |
| 92 | axis, |
| 93 | tensorShape.GetNumDimensions(), |
| 94 | CHECK_LOCATION().AsString())); |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | if (axis < 0) |
| 98 | { |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 99 | axis = armnn::numeric_cast<int>(outputDim) + axis; |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | std::vector<unsigned int> outputShape; |
Colm Donelan | 5b5c222 | 2020-09-09 12:48:16 +0100 | [diff] [blame] | 103 | outputShape.reserve(tensorShape.GetNumDimensions()); |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 104 | for (unsigned int i = 0; i < tensorShape.GetNumDimensions(); ++i) |
| 105 | { |
| 106 | outputShape.push_back(tensorShape[i]); |
| 107 | } |
| 108 | outputShape.insert(outputShape.begin() + axis, 1); |
| 109 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 110 | return TensorShape(outputDim, outputShape.data()); |
Narumol Prangnawarat | 0280785 | 2019-09-11 16:43:09 +0100 | [diff] [blame] | 111 | } |
| 112 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 113 | unsigned int GetNumElementsBetween(const TensorShape& shape, |
Narumol Prangnawarat | 4dc64a6 | 2019-09-16 17:00:22 +0100 | [diff] [blame] | 114 | const unsigned int firstAxisInclusive, |
| 115 | const unsigned int lastAxisExclusive) |
| 116 | { |
Narumol Prangnawarat | ac2770a | 2020-04-01 16:51:23 +0100 | [diff] [blame] | 117 | ARMNN_ASSERT(firstAxisInclusive <= lastAxisExclusive); |
| 118 | ARMNN_ASSERT(lastAxisExclusive <= shape.GetNumDimensions()); |
Narumol Prangnawarat | 4dc64a6 | 2019-09-16 17:00:22 +0100 | [diff] [blame] | 119 | unsigned int count = 1; |
| 120 | for (unsigned int i = firstAxisInclusive; i < lastAxisExclusive; i++) |
| 121 | { |
| 122 | count *= shape[i]; |
| 123 | } |
| 124 | return count; |
| 125 | } |
| 126 | |
| 127 | unsigned int GetUnsignedAxis(const unsigned int inputDimension, const int axis) |
| 128 | { |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 129 | ARMNN_ASSERT_MSG(axis < armnn::numeric_cast<int>(inputDimension), |
Narumol Prangnawarat | 4dc64a6 | 2019-09-16 17:00:22 +0100 | [diff] [blame] | 130 | "Required axis index greater than number of dimensions."); |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 131 | ARMNN_ASSERT_MSG(axis >= -armnn::numeric_cast<int>(inputDimension), |
Narumol Prangnawarat | 4dc64a6 | 2019-09-16 17:00:22 +0100 | [diff] [blame] | 132 | "Required axis index lower than negative of the number of dimensions"); |
| 133 | |
| 134 | unsigned int uAxis = axis < 0 ? |
Matthew Sloyan | 0663d66 | 2020-09-14 11:47:26 +0100 | [diff] [blame] | 135 | inputDimension - armnn::numeric_cast<unsigned int>(abs(axis)) |
| 136 | : armnn::numeric_cast<unsigned int>(axis); |
Narumol Prangnawarat | 4dc64a6 | 2019-09-16 17:00:22 +0100 | [diff] [blame] | 137 | return uAxis; |
| 138 | } |
| 139 | |
Aron Virginas-Tar | b67f957 | 2019-11-04 15:00:19 +0000 | [diff] [blame] | 140 | unsigned int GetNumElementsAfter(const armnn::TensorShape& shape, unsigned int axis) |
| 141 | { |
| 142 | unsigned int numDim = shape.GetNumDimensions(); |
Narumol Prangnawarat | ac2770a | 2020-04-01 16:51:23 +0100 | [diff] [blame] | 143 | ARMNN_ASSERT(axis <= numDim - 1); |
Aron Virginas-Tar | b67f957 | 2019-11-04 15:00:19 +0000 | [diff] [blame] | 144 | unsigned int count = 1; |
| 145 | for (unsigned int i = axis; i < numDim; i++) |
| 146 | { |
| 147 | count *= shape[i]; |
| 148 | } |
| 149 | return count; |
| 150 | } |
| 151 | |
| 152 | std::pair<unsigned int, std::vector<float>> GetPerAxisParams(const armnn::TensorInfo& info) |
| 153 | { |
| 154 | const std::vector<float>& scales = info.GetQuantizationScales(); |
| 155 | armnn::Optional<unsigned int> quantizationDim = info.GetQuantizationDim(); |
Aron Virginas-Tar | 5edc881 | 2019-11-05 18:00:21 +0000 | [diff] [blame] | 156 | if (!info.HasPerAxisQuantization()) |
Aron Virginas-Tar | b67f957 | 2019-11-04 15:00:19 +0000 | [diff] [blame] | 157 | { |
| 158 | throw armnn::InvalidArgumentException( |
| 159 | std::string("Per-axis quantization params not set for tensor of type ") + |
| 160 | armnn::GetDataTypeName(info.GetDataType()), CHECK_LOCATION()); |
| 161 | } |
| 162 | unsigned int axisFactor = GetNumElementsAfter(info.GetShape(), quantizationDim.value()); |
| 163 | |
| 164 | return { axisFactor, scales }; |
| 165 | } |
| 166 | |
Matteo Martincigh | 9a5f9f2 | 2019-10-31 11:02:47 +0000 | [diff] [blame] | 167 | } // namespace armnnUtils |