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author | George Gekov <george.gekov@arm.com> | 2021-08-16 11:32:10 +0100 |
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committer | Jim Flynn <jim.flynn@arm.com> | 2022-02-05 19:49:06 +0000 |
commit | 23c26277086c78704a17f0dae86da947816320c0 (patch) | |
tree | 88b02fd1fae3130256d059251788a7ef68d2831f /samples/common/include/Audio/DataStructures.hpp | |
parent | 922b912fd2d462bac0809bac5669310ad1506310 (diff) | |
download | armnn-23c26277086c78704a17f0dae86da947816320c0.tar.gz |
MLECO-2079 Adding the C++ KWS example
Signed-off-by: Eanna O Cathain <eanna.ocathain@arm.com>
Change-Id: I81899bbfaada32f478c2e2fc6441eabb94d8d0fc
Diffstat (limited to 'samples/common/include/Audio/DataStructures.hpp')
-rw-r--r-- | samples/common/include/Audio/DataStructures.hpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/samples/common/include/Audio/DataStructures.hpp b/samples/common/include/Audio/DataStructures.hpp new file mode 100644 index 0000000000..9922265299 --- /dev/null +++ b/samples/common/include/Audio/DataStructures.hpp @@ -0,0 +1,102 @@ +// +// Copyright © 2020 Arm Ltd and Contributors. All rights reserved. +// SPDX-License-Identifier: MIT +// +#pragma once + +#include <stdio.h> +#include <iterator> + +/** + * Class Array2d is a data structure that represents a two dimensional array. + * The data is allocated in contiguous memory, arranged row-wise + * and individual elements can be accessed with the () operator. + * For example a two dimensional array D of size (M, N) can be accessed: + * + * _|<------------- col size = N -------->| + * | D(r=0, c=0) D(r=0, c=1)... D(r=0, c=N) + * | D(r=1, c=0) D(r=1, c=1)... D(r=1, c=N) + * | ... + * row size = M ... + * | ... + * _ D(r=M, c=0) D(r=M, c=1)... D(r=M, c=N) + * + */ +template<typename T> +class Array2d +{ +private: + size_t m_rows; + size_t m_cols; + T* m_data; + +public: + /** + * Creates the array2d with the given sizes. + * + * @param rows number of rows. + * @param cols number of columns. + */ + Array2d(unsigned rows, unsigned cols) + { + if (rows == 0 || cols == 0) { + printf("Array2d constructor has 0 size.\n"); + m_data = nullptr; + return; + } + m_rows = rows; + m_cols = cols; + m_data = new T[rows * cols]; + } + + ~Array2d() + { + delete[] m_data; + } + + T& operator() (unsigned int row, unsigned int col) + { + return m_data[m_cols * row + col]; + } + + T operator() (unsigned int row, unsigned int col) const + { + return m_data[m_cols * row + col]; + } + + /** + * Gets rows number of the current array2d. + * @return number of rows. + */ + size_t size(size_t dim) + { + switch (dim) + { + case 0: + return m_rows; + case 1: + return m_cols; + default: + return 0; + } + } + + /** + * Gets the array2d total size. + */ + size_t totalSize() + { + return m_rows * m_cols; + } + + /** + * array2d iterator. + */ + using iterator=T*; + using const_iterator=T const*; + + iterator begin() { return m_data; } + iterator end() { return m_data + totalSize(); } + const_iterator begin() const { return m_data; } + const_iterator end() const { return m_data + totalSize(); }; +}; |