COMPMID-556: Move Convolution to reference folder

Change-Id: I5e7f2d9390b45be252d5f692b47f88472b681d14
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/112993
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/tests/validation/reference/Convolution.cpp b/tests/validation/reference/Convolution.cpp
new file mode 100644
index 0000000000..84be858cfc
--- /dev/null
+++ b/tests/validation/reference/Convolution.cpp
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2017 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.
+ */
+#include "arm_compute/core/Helpers.h"
+
+#include "Convolution.h"
+#include "Utils.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+template <typename T>
+SimpleTensor<T> convolution(const SimpleTensor<T> &src, const int16_t *conv, uint32_t scale, BorderMode border_mode, T constant_border_value, const unsigned int filter_size)
+{
+    SimpleTensor<T>       dst(src.shape(), src.data_type());
+    SimpleTensor<int32_t> sum(src.shape(), src.data_type());
+
+    for(int element_idx = 0; element_idx < src.num_elements(); ++element_idx)
+    {
+        const Coordinates id = index2coord(src.shape(), element_idx);
+        apply_2d_spatial_filter(id, src, sum, TensorShape(filter_size, filter_size), conv, 1, border_mode, constant_border_value);
+
+        if(tensor_elem_at<int32_t>(sum, id, border_mode, constant_border_value) < 0)
+        {
+            dst[element_idx] = 0;
+        }
+        else if((tensor_elem_at<int32_t>(sum, id, border_mode, constant_border_value) / scale) > 255)
+        {
+            dst[element_idx] = 255;
+        }
+        else
+        {
+            dst[element_idx] = tensor_elem_at<int32_t>(sum, id, border_mode, constant_border_value) / scale;
+        }
+    }
+
+    return dst;
+}
+
+template SimpleTensor<uint8_t> convolution(const SimpleTensor<uint8_t> &src, const int16_t *conv, uint32_t scale, BorderMode border_mode, uint8_t constant_border_value,
+                                           const unsigned int filter_size);
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute