Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 1 | // |
Colm Donelan | b4ef163 | 2024-02-01 15:00:43 +0000 | [diff] [blame] | 2 | // Copyright © 2017, 2024 Arm Ltd. All rights reserved. |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | |
| 6 | #include "RefWorkloadUtils.hpp" |
Colm Donelan | 0c47974 | 2021-12-10 12:43:54 +0000 | [diff] [blame] | 7 | #include <armnn/backends/WorkloadData.hpp> |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 8 | #include <armnn/Tensor.hpp> |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 9 | #include "Splitter.hpp" |
| 10 | |
| 11 | #include <cmath> |
| 12 | #include <limits> |
| 13 | |
| 14 | #include "Decoders.hpp" |
| 15 | #include "Encoders.hpp" |
| 16 | |
| 17 | namespace armnn |
| 18 | { |
| 19 | |
Finn Williams | b8181f7 | 2021-04-07 10:23:21 +0100 | [diff] [blame] | 20 | void Split(const SplitterQueueDescriptor& data, |
| 21 | std::vector<ITensorHandle*> inputs, |
| 22 | std::vector<ITensorHandle*> outputs) |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 23 | { |
Finn Williams | b8181f7 | 2021-04-07 10:23:21 +0100 | [diff] [blame] | 24 | const TensorInfo& inputInfo = GetTensorInfo(inputs[0]); |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 25 | |
| 26 | std::unique_ptr<Decoder<float>> decoderPtr = |
Finn Williams | b8181f7 | 2021-04-07 10:23:21 +0100 | [diff] [blame] | 27 | MakeDecoder<float>(inputInfo, inputs[0]->Map()); |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 28 | Decoder<float>& decoder = *decoderPtr; |
| 29 | |
| 30 | for (unsigned int index = 0; index < inputInfo.GetNumElements(); ++index) |
| 31 | { |
| 32 | unsigned int indices[MaxNumOfTensorDimensions] = { 0 }; |
| 33 | |
| 34 | unsigned int indexRemainder = index; |
| 35 | unsigned int dimensionStride = inputInfo.GetNumElements(); |
| 36 | |
| 37 | for (unsigned int i = 0; i<inputInfo.GetNumDimensions(); i++) |
| 38 | { |
| 39 | dimensionStride /= inputInfo.GetShape()[i]; |
| 40 | indices[i] = indexRemainder / dimensionStride; // Use integer division to round down. |
| 41 | indexRemainder -= indices[i] * dimensionStride; |
| 42 | } |
| 43 | |
| 44 | for (unsigned int viewIdx = 0; viewIdx < data.m_ViewOrigins.size(); ++viewIdx) |
| 45 | { |
| 46 | SplitterQueueDescriptor::ViewOrigin const& view = data.m_ViewOrigins[viewIdx]; |
| 47 | |
| 48 | //Split view extents are defined by the size of (the corresponding) input tensor. |
Finn Williams | b8181f7 | 2021-04-07 10:23:21 +0100 | [diff] [blame] | 49 | const TensorInfo& outputInfo = GetTensorInfo(outputs[viewIdx]); |
Colm Donelan | b4ef163 | 2024-02-01 15:00:43 +0000 | [diff] [blame] | 50 | ARMNN_THROW_INVALIDARG_MSG_IF_FALSE( |
| 51 | outputInfo.GetNumDimensions() == inputInfo.GetNumDimensions(), |
| 52 | "The number of output dimensions does not match the number of input dimensions."); |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 53 | |
| 54 | // Check all dimensions to see if this element is inside the given input view. |
| 55 | bool insideView = true; |
| 56 | for (unsigned int i = 0; i<outputInfo.GetNumDimensions(); i++) |
| 57 | { |
| 58 | if (indices[i] < view.m_Origin[i]) |
| 59 | { |
| 60 | insideView = false; |
| 61 | } |
| 62 | if (indices[i] >= view.m_Origin[i] + outputInfo.GetShape()[i]) |
| 63 | { |
| 64 | insideView = false; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | if (insideView) |
| 69 | { |
| 70 | std::unique_ptr<Encoder<float>> encoderPtr = |
Finn Williams | b8181f7 | 2021-04-07 10:23:21 +0100 | [diff] [blame] | 71 | MakeEncoder<float>(outputInfo, outputs[viewIdx]->Map()); |
Ruomei Yan | 25339c3 | 2019-05-28 16:48:20 +0100 | [diff] [blame] | 72 | Encoder<float>& encoder = *encoderPtr; |
| 73 | |
| 74 | unsigned int outIndex = 0; |
| 75 | unsigned int dimensionStride = 1; |
| 76 | float inputValue = 0.f; |
| 77 | |
| 78 | for (unsigned int i = outputInfo.GetNumDimensions(); i-- > 0;) |
| 79 | { |
| 80 | outIndex += dimensionStride * (indices[i] - view.m_Origin[i]); |
| 81 | dimensionStride *= outputInfo.GetShape()[i]; |
| 82 | } |
| 83 | |
| 84 | decoder += index; |
| 85 | inputValue = decoder.Get(); |
| 86 | decoder -= index; |
| 87 | |
| 88 | encoder += outIndex; |
| 89 | encoder.Set(inputValue); |
| 90 | break; |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | } |