diff options
Diffstat (limited to 'src/armnnUtils/ParserHelper.cpp')
-rw-r--r-- | src/armnnUtils/ParserHelper.cpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/armnnUtils/ParserHelper.cpp b/src/armnnUtils/ParserHelper.cpp new file mode 100644 index 0000000000..bf5ffdf0ad --- /dev/null +++ b/src/armnnUtils/ParserHelper.cpp @@ -0,0 +1,64 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// SPDX-License-Identifier: MIT +// + +#include "ParserHelper.hpp" + +// armnnUtils +#include "Permute.hpp" + +#include <boost/format.hpp> + +namespace armnnUtils +{ + +const armnn::PermutationVector NHWCToArmNN = { 0, 2, 3, 1 }; +const armnn::PermutationVector ArmNNToNHWC = { 0, 3, 1, 2 }; + +void ProcessConcatInputTensorInfo(armnn::TensorInfo& inputTensorInfo, armnn::OriginsDescriptor& concatDescriptor, + const unsigned int& concatAxis, unsigned int inputIndex, + std::vector<unsigned int>& mergeDimSizes, unsigned int& mergeDim) +{ + // double check dimensions of the tensors + if (inputTensorInfo.GetNumDimensions() != armnn::MaxNumOfTensorDimensions) + { + throw armnn::ParseException( + boost::str( + boost::format( + "The number of dimensions: %1% for input tensors of the " + "concatenation op should be %2% %3%") + % inputTensorInfo.GetNumDimensions() + % armnn::MaxNumOfTensorDimensions + % CHECK_LOCATION().AsString())); + } + + // if concatenation axis is 3 then need to be permuted + if (concatAxis == 3) + { + inputTensorInfo = armnnUtils::Permuted(inputTensorInfo, NHWCToArmNN); + } + + for (unsigned int dim = 0; dim < armnn::MaxNumOfTensorDimensions; ++dim) + { + mergeDimSizes[dim] = inputTensorInfo.GetShape()[dim]; + } + + // Concatenation dimension 1 is the only dimension supported in ArmNN + const unsigned int concatenationDim = 1; + + for (unsigned int j = 0; j < concatenationDim; ++j) + { + concatDescriptor.SetViewOriginCoord(inputIndex, j, 0); + } + + concatDescriptor.SetViewOriginCoord(inputIndex, concatenationDim, mergeDim); + mergeDim += mergeDimSizes[concatenationDim]; + + for (unsigned int j = concatenationDim + 1; j < armnn::MaxNumOfTensorDimensions; ++j) + { + concatDescriptor.SetViewOriginCoord(inputIndex, j, 0); + } +} + +} // namespace armnnUtils |