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Diffstat (limited to 'src/backends/backendsCommon/WorkloadUtils.hpp')
| -rw-r--r-- | src/backends/backendsCommon/WorkloadUtils.hpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/backends/backendsCommon/WorkloadUtils.hpp b/src/backends/backendsCommon/WorkloadUtils.hpp new file mode 100644 index 0000000000..b7e0e060f2 --- /dev/null +++ b/src/backends/backendsCommon/WorkloadUtils.hpp @@ -0,0 +1,140 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// SPDX-License-Identifier: MIT +// + +#pragma once + +#include "ITensorHandle.hpp" + +#include <armnn/Tensor.hpp> + +#include <boost/cast.hpp> + +namespace armnn +{ +namespace +{ +template<typename ArrayType, typename Arg> +void AssignValues(unsigned int num, unsigned int& idx, const ArrayType& array, Arg& arg) +{ + if (idx >= num) + { + return; + } + + arg = array[(num - 1) - idx]; + idx++; +}; + +template<typename T, typename ArrayType, typename ...Args> +void AssignValues(unsigned int num, unsigned int idx, const ArrayType& array, T& assignee, Args& ... args) +{ + AssignValues(num, idx, array, assignee); + + AssignValues(num, idx, array, args...); +} +} // namespace + +template<typename CopyFunc> +void CopyTensorContentsGeneric(const ITensorHandle* srcTensor, ITensorHandle* dstTensor, CopyFunc copy) +{ + static_assert(MaxNumOfTensorDimensions == 4, "Please update CopyTensorContents"); + + TensorShape srcStrides = srcTensor->GetStrides(); + const TensorShape& srcShape = srcTensor->GetShape(); + TensorShape dstStrides = dstTensor->GetStrides(); + const TensorShape& dstShape = dstTensor->GetShape(); + + size_t srcBatches = 1; + size_t srcChannels = 1; + size_t srcHeight = 1; + size_t srcWidth = 1; + AssignValues(srcShape.GetNumDimensions(),0, srcShape, + srcWidth, + srcHeight, + srcChannels, + srcBatches); + + size_t srcBatchStride = 0; + size_t srcChannelStride = 0; + size_t srcHeightStride = 0; + size_t srcWidthStride = 0; + AssignValues(srcStrides.GetNumDimensions(),0, srcStrides, + srcWidthStride, + srcHeightStride, + srcChannelStride, + srcBatchStride); + + size_t dstBatches = 1; + size_t dstChannels = 1; + size_t dstHeight = 1; + size_t dstWidth = 1; + AssignValues(dstShape.GetNumDimensions(),0, dstShape, + dstWidth, + dstHeight, + dstChannels, + dstBatches); + + size_t dstBatchStride = 0; + size_t dstChannelStride = 0; + size_t dstHeightStride = 0; + size_t dstWidthStride = 0; + AssignValues(dstStrides.GetNumDimensions(),0, dstStrides, + dstWidthStride, + dstHeightStride, + dstChannelStride, + dstBatchStride); + + auto srcData = static_cast<const uint8_t*>(srcTensor->Map()); + auto dstData = static_cast<uint8_t*>(dstTensor->Map()); + + size_t copyLength = std::min(srcWidth*srcWidthStride, dstWidth*dstWidthStride); + size_t copyHeight = std::min(srcHeight, dstHeight); + size_t copyChannels = std::min(srcChannels, dstChannels); + size_t copyBatches = std::min(srcBatches, dstBatches); + + for(unsigned int b=0; b < copyBatches; ++b) + { + auto srcPtrBatch = srcData; + auto dstPtrBatch = dstData; + for (unsigned int c=0; c< copyChannels; ++c) + { + auto srcPtrChannel = srcData; + auto dstPtrChannel = dstData; + for (unsigned int h=0; h < copyHeight; ++h) + { + copy(dstData, srcData, copyLength); + dstData += dstHeightStride; + srcData += srcHeightStride; + } + dstData += (static_cast<long>(dstChannelStride) - (dstData - dstPtrChannel)); + srcData += (static_cast<long>(srcChannelStride) - (srcData - srcPtrChannel)); + } + dstData += (static_cast<long>(dstBatchStride)-(dstData - dstPtrBatch)); + srcData += (static_cast<long>(srcBatchStride)-(srcData - srcPtrBatch)); + } + + srcTensor->Unmap(); + dstTensor->Unmap(); +} + +template <typename SrcTensorHandleType, typename DstTensorHandleType, typename DescriptorType> +void GatherTensorHandlePairs(const DescriptorType& descriptor, + std::vector<std::pair<SrcTensorHandleType*, DstTensorHandleType*>>& tensorHandlePairs) +{ + const unsigned int numInputs = static_cast<unsigned int>(descriptor.m_Inputs.size()); + tensorHandlePairs.reserve(numInputs); + + for (unsigned int i = 0; i < numInputs; ++i) + { + SrcTensorHandleType* const srcTensorHandle = boost::polymorphic_downcast<SrcTensorHandleType*>( + descriptor.m_Inputs[i]); + DstTensorHandleType* const dstTensorHandle = boost::polymorphic_downcast<DstTensorHandleType*>( + descriptor.m_Outputs[i]); + + tensorHandlePairs.emplace_back(srcTensorHandle, dstTensorHandle); + } +} + +} //namespace armnn
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