COMPMID-1960: Implement DFT reference

Change-Id: I08d47ce2cf7fc833df94420bedd69cedf080fd34
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/c/822
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>

1 files changed, 174 insertions, 0 deletions

diff --git a/tests/SimpleTensorAccessor.h b/tests/SimpleTensorAccessor.h
new file mode 100644
index 0000000000..a7ed6f664c
--- /dev/null
+++ b/tests/SimpleTensorAccessor.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2019 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_TEST_SIMPLE_TENSOR_ACCESSOR_H__
+#define __ARM_COMPUTE_TEST_SIMPLE_TENSOR_ACCESSOR_H__
+
+#include "SimpleTensor.h"
+#include "tests/IAccessor.h"
+
+namespace arm_compute
+{
+namespace test
+{
+/** Accessor implementation for @ref SimpleTensor objects. */
+template <typename T>
+class SimpleTensorAccessor : public IAccessor
+{
+public:
+    /** Create an accessor for the given @p tensor.
+     *
+     * @param[in, out] tensor To be accessed tensor.
+     */
+    SimpleTensorAccessor(SimpleTensor<T> &tensor);
+
+    /** Prevent instances of this class from being copy constructed */
+    SimpleTensorAccessor(const SimpleTensorAccessor &) = delete;
+    /** Prevent instances of this class from being copied */
+    SimpleTensorAccessor &operator=(const SimpleTensorAccessor &) = delete;
+    /** Allow instances of this class to be move constructed */
+    SimpleTensorAccessor(SimpleTensorAccessor &&) = default;
+    /** Allow instances of this class to be moved */
+    SimpleTensorAccessor &operator=(SimpleTensorAccessor &&) = default;
+
+    /** Get the tensor data.
+     *
+     * @return a constant pointer to the tensor data.
+     */
+    const void *data() const;
+    /** Get the tensor data.
+     *
+     * @return a pointer to the tensor data.
+     */
+    void *data();
+
+    // Inherited methods overridden:
+    TensorShape      shape() const override;
+    size_t           element_size() const override;
+    size_t           size() const override;
+    Format           format() const override;
+    DataLayout       data_layout() const override;
+    DataType         data_type() const override;
+    int              num_channels() const override;
+    int              num_elements() const override;
+    PaddingSize      padding() const override;
+    QuantizationInfo quantization_info() const override;
+    const void *operator()(const Coordinates &coord) const override;
+    void *operator()(const Coordinates &coord) override;
+
+private:
+    SimpleTensor<T> &_tensor;
+};
+
+template <typename T>
+inline SimpleTensorAccessor<T>::SimpleTensorAccessor(SimpleTensor<T> &tensor)
+    : _tensor{ tensor }
+{
+}
+
+template <typename T>
+inline TensorShape SimpleTensorAccessor<T>::shape() const
+{
+    return _tensor.shape();
+}
+
+template <typename T>
+inline size_t SimpleTensorAccessor<T>::element_size() const
+{
+    return _tensor.element_size();
+}
+
+template <typename T>
+inline size_t SimpleTensorAccessor<T>::size() const
+{
+    return _tensor.num_elements() * _tensor.element_size();
+}
+
+template <typename T>
+inline Format SimpleTensorAccessor<T>::format() const
+{
+    return _tensor.format();
+}
+
+template <typename T>
+inline DataLayout SimpleTensorAccessor<T>::data_layout() const
+{
+    return _tensor.data_layout();
+}
+
+template <typename T>
+inline DataType SimpleTensorAccessor<T>::data_type() const
+{
+    return _tensor.data_type();
+}
+
+template <typename T>
+inline int SimpleTensorAccessor<T>::num_channels() const
+{
+    return _tensor.num_channels();
+}
+
+template <typename T>
+inline int SimpleTensorAccessor<T>::num_elements() const
+{
+    return _tensor.num_elements();
+}
+
+template <typename T>
+inline PaddingSize SimpleTensorAccessor<T>::padding() const
+{
+    return _tensor.padding();
+}
+
+template <typename T>
+inline QuantizationInfo SimpleTensorAccessor<T>::quantization_info() const
+{
+    return _tensor.quantization_info();
+}
+
+template <typename T>
+inline const void *SimpleTensorAccessor<T>::data() const
+{
+    return _tensor.data();
+}
+
+template <typename T>
+inline void *SimpleTensorAccessor<T>::data()
+{
+    return _tensor.data();
+}
+
+template <typename T>
+inline const void *SimpleTensorAccessor<T>::operator()(const Coordinates &coord) const
+{
+    return _tensor(coord);
+}
+
+template <typename T>
+inline void *SimpleTensorAccessor<T>::operator()(const Coordinates &coord)
+{
+    return _tensor(coord);
+}
+} // namespace test
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_TEST_SIMPLE_TENSOR_ACCESSOR_H__ */