IVGCVSW-820: Add QASYMM8 support to NeonActivationLayerKernel

Change-Id: Ic3881e97b4fcbae0ac287a1e010cfc6f0fd8d7d1
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/112139
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/src/core/Rounding.cpp b/src/core/Rounding.cpp
new file mode 100644
index 0000000000..fea635be97
--- /dev/null
+++ b/src/core/Rounding.cpp
@@ -0,0 +1,64 @@
+/*
+ * 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/Rounding.h"
+
+#include "arm_compute/core/Error.h"
+#include "support/ToolchainSupport.h"
+
+#include <cmath>
+
+using namespace arm_compute;
+using namespace std;
+
+int arm_compute::round(float x, RoundingPolicy rounding_policy)
+{
+    using namespace std;
+    int rounded = 0;
+    switch(rounding_policy)
+    {
+        case RoundingPolicy::TO_ZERO:
+        {
+            rounded = static_cast<int>(x);
+            break;
+        }
+        case RoundingPolicy::TO_NEAREST_UP:
+        {
+            rounded = static_cast<int>(support::cpp11::round(x));
+            break;
+        }
+        case RoundingPolicy::TO_NEAREST_EVEN:
+        {
+            ARM_COMPUTE_ERROR("TO_NEAREST_EVEN rounding policy is not supported.");
+            break;
+        }
+        default:
+        {
+            ARM_COMPUTE_ERROR("Unsupported rounding policy.");
+            break;
+        }
+    }
+
+    return rounded;
+}