From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001
From: Anthony Barbier <anthony.barbier@arm.com>
Date: Mon, 4 Sep 2017 18:44:23 +0100
Subject: COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
---
 arm_compute/core/NEON/kernels/NEDerivativeKernel.h | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 arm_compute/core/NEON/kernels/NEDerivativeKernel.h

(limited to 'arm_compute/core/NEON/kernels/NEDerivativeKernel.h')

diff --git a/arm_compute/core/NEON/kernels/NEDerivativeKernel.h b/arm_compute/core/NEON/kernels/NEDerivativeKernel.h
new file mode 100644
index 0000000000..abb8a894c0
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEDerivativeKernel.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+#ifndef __ARM_COMPUTE_NEDERIVATIVEKERNEL_H__
+#define __ARM_COMPUTE_NEDERIVATIVEKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Interface for the kernel to run the derivative along the X/Y directions on a tensor.
+ *
+ */
+class NEDerivativeKernel : public INEKernel
+{
+public:
+    /** Default constructor */
+    NEDerivativeKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEDerivativeKernel(const NEDerivativeKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEDerivativeKernel &operator=(const NEDerivativeKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEDerivativeKernel(NEDerivativeKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEDerivativeKernel &operator=(NEDerivativeKernel &&) = default;
+    /** Initialise the kernel's sources, destination and border
+     *
+     * @note At least one of output_x or output_y must be set
+     *
+     * @param[in]  input            Source tensor. Data type supported: U8.
+     * @param[out] output_x         (Optional) Destination tensor for the X gradient. Data type supported: S16.
+     * @param[out] output_y         (Optional) Destination tensor for the Y gradient. 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_x, ITensor *output_y, bool border_undefined);
+
+    // Inherited methods overridden:
+    void run(const Window &window) override;
+    BorderSize border_size() const override;
+
+private:
+    /** Function to perform derivative along the X direction on the given window
+     *
+     *  @param[in] window Region on which to execute the kernel
+     */
+    void derivative_x(const Window &window);
+    /** Function to perform derivative along the Y direction on the given window
+     *
+     *  @param[in] window Region on which to execute the kernel
+     */
+    void derivative_y(const Window &window);
+    /** Function to perform derivative along the X and Y direction on the given window
+     *
+     *  @param[in] window Region on which to execute the kernel
+     */
+    void derivative_xy(const Window &window);
+    /** Common signature for all the specialised derivative functions
+     *
+     * @param[in] window Region on which to execute the kernel.
+     */
+    using DerivativeFunction = void (NEDerivativeKernel::*)(const Window &window);
+    /** Derivative function to use for the particular tensor types passed to configure() */
+    DerivativeFunction _func;
+
+private:
+    const ITensor *_input;    /**< Input tensor */
+    ITensor       *_output_x; /**< Output tensor - Derivate along the X direction */
+    ITensor       *_output_y; /**< Output tensor - Derivate along the Y direction */
+};
+}
+#endif /* __ARM_COMPUTE_NEDERIVATIVEKERNEL_H__ */
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