From 5a7e776eee2e9147eab12631f5717847fb6cac5c Mon Sep 17 00:00:00 2001
From: Georgios Pinitas <georgios.pinitas@arm.com>
Date: Fri, 1 Dec 2017 16:27:29 +0000
Subject: COMPMID-556: Rename CPP folder to reference

Change-Id: I147644349547c4e3804a80b564a9ad95131ad2d0
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/111560
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
---
 tests/validation/reference/Phase.cpp | 66 ++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 tests/validation/reference/Phase.cpp

(limited to 'tests/validation/reference/Phase.cpp')

diff --git a/tests/validation/reference/Phase.cpp b/tests/validation/reference/Phase.cpp
new file mode 100644
index 0000000000..7827cd2989
--- /dev/null
+++ b/tests/validation/reference/Phase.cpp
@@ -0,0 +1,66 @@
+/*
+ * 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 "Phase.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+template <typename T>
+SimpleTensor<uint8_t> phase(const SimpleTensor<T> &gx, const SimpleTensor<T> &gy, PhaseType phase_type)
+{
+    const float           PI = std::atan(1) * 4;
+    SimpleTensor<uint8_t> phase(gx.shape(), DataType::U8);
+
+    if(phase_type == PhaseType::UNSIGNED) // unsigned: map to [0-255)
+    {
+        for(int i = 0; i < gx.num_elements(); ++i)
+        {
+            float angle_deg = (std::atan2(float(gy[i]), float(gx[i])) / PI) * 180.0f;
+            phase[i]        = (angle_deg < 0.0f) ? 180.f + angle_deg : angle_deg;
+        }
+    }
+    else // signed: map to [0-180) degrees
+    {
+        for(int i = 0; i < gx.num_elements(); ++i)
+        {
+            float angle_pi = std::atan2(gy[i], gx[i]) / PI;
+            angle_pi       = (angle_pi < 0.0f) ? 2 + angle_pi : angle_pi;
+            phase[i]       = lround(angle_pi * 128) & 0xFFu;
+        }
+    }
+
+    return phase;
+}
+
+template SimpleTensor<uint8_t> phase(const SimpleTensor<int16_t> &gx, const SimpleTensor<int16_t> &gy, PhaseType phase_type);
+template SimpleTensor<uint8_t> phase(const SimpleTensor<int32_t> &gx, const SimpleTensor<int32_t> &gy, PhaseType phase_type);
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute
-- 
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