COMPMID-3638: Move NEON kernels

Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Change-Id: Ieed3e4bc8be7fef80c90c5094599b477a56fc473
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4285
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/src/core/NEON/kernels/NEGaussian5x5Kernel.h b/src/core/NEON/kernels/NEGaussian5x5Kernel.h
new file mode 100644
index 0000000000..f4bca55637
--- /dev/null
+++ b/src/core/NEON/kernels/NEGaussian5x5Kernel.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2016-2020 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_NEGAUSSIAN5x5KERNEL_H
+#define ARM_COMPUTE_NEGAUSSIAN5x5KERNEL_H
+
+#include "src/core/NEON/INESimpleKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** NEON kernel to perform a Gaussian 5x5 filter (horizontal pass) */
+class NEGaussian5x5HorKernel : public INESimpleKernel
+{
+public:
+    const char *name() const override
+    {
+        return "NEGaussian5x5HorKernel";
+    }
+    /** Default constructor */
+    NEGaussian5x5HorKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEGaussian5x5HorKernel(NEGaussian5x5HorKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEGaussian5x5HorKernel &operator=(NEGaussian5x5HorKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEGaussian5x5HorKernel(NEGaussian5x5HorKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEGaussian5x5HorKernel &operator=(NEGaussian5x5HorKernel &&) = default;
+    /** Default destructor */
+    ~NEGaussian5x5HorKernel() = default;
+
+    /** Initialise the kernel's source, destination and border mode.
+     *
+     * @param[in]  input            Source tensor. Data type supported: U8.
+     * @param[out] output           Destination tensor. Data type supported: S16.
+     * @param[in]  border_undefined True if the border mode is undefined. False if it's replicate or constant.
+     */
+    void configure(const ITensor *input, ITensor *output, bool border_undefined);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+    BorderSize border_size() const override;
+
+private:
+    BorderSize _border_size;
+};
+
+/** NEON kernel to perform a Gaussian 5x5 filter (vertical pass) */
+class NEGaussian5x5VertKernel : public INESimpleKernel
+{
+public:
+    const char *name() const override
+    {
+        return "NEGaussian5x5VertKernel";
+    }
+    /** Default constructor */
+    NEGaussian5x5VertKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEGaussian5x5VertKernel(NEGaussian5x5VertKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEGaussian5x5VertKernel &operator=(NEGaussian5x5VertKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEGaussian5x5VertKernel(NEGaussian5x5VertKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEGaussian5x5VertKernel &operator=(NEGaussian5x5VertKernel &&) = default;
+    /** Default destructor */
+    ~NEGaussian5x5VertKernel() = default;
+    /** Initialise the kernel's source, destination and border mode.
+     *
+     * @param[in]  input            Source tensor. Data type supported: S16.
+     * @param[out] output           Destination tensor, Data type supported: U8.
+     * @param[in]  border_undefined True if the border mode is undefined. False if it's replicate or constant.
+     */
+    void configure(const ITensor *input, ITensor *output, bool border_undefined);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+    BorderSize border_size() const override;
+};
+} // namespace arm_compute
+#endif /*ARM_COMPUTE_NEGAUSSIAN5x5KERNEL_H */