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authorAnthony Barbier <anthony.barbier@arm.com>2017-09-04 18:44:23 +0100
committerAnthony Barbier <anthony.barbier@arm.com>2018-09-17 13:03:09 +0100
commit6ff3b19ee6120edf015fad8caab2991faa3070af (patch)
treea7a6dcd16dfd56d79fa1b56a313caeebcc939b68 /arm_compute/core/NEON/kernels/NEPixelWiseMultiplicationKernel.h
downloadComputeLibrary-6ff3b19ee6120edf015fad8caab2991faa3070af.tar.gz
COMPMID-344 Updated doxygen
Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
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+/*
+ * 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_NEPIXELWISEMULTIPLICATIONKERNEL_H__
+#define __ARM_COMPUTE_NEPIXELWISEMULTIPLICATIONKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Interface for the kernel to perform addition between two tensors */
+class NEPixelWiseMultiplicationKernel : public INEKernel
+{
+public:
+ /** Default constructor */
+ NEPixelWiseMultiplicationKernel();
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEPixelWiseMultiplicationKernel(const NEPixelWiseMultiplicationKernel &) = delete;
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEPixelWiseMultiplicationKernel &operator=(const NEPixelWiseMultiplicationKernel &) = delete;
+ /** Allow instances of this class to be moved */
+ NEPixelWiseMultiplicationKernel(NEPixelWiseMultiplicationKernel &&) = default;
+ /** Allow instances of this class to be moved */
+ NEPixelWiseMultiplicationKernel &operator=(NEPixelWiseMultiplicationKernel &&) = default;
+ /** Default destructor */
+ ~NEPixelWiseMultiplicationKernel() = default;
+ /** Initialise the kernel's input, output and border mode.
+ *
+ * @note For @p scale equal to 1/255 only round to nearest even (implemented as round half up) is supported.
+ * For all other scale values only round to zero (implemented as round towards minus infinity) is supported.
+ *
+ * @param[in] input1 An input tensor. Data types supported: U8/QS8/S16/F32.
+ * @param[in] input2 An input tensor. Data types supported: U8/QS8/S16/F32.
+ * @param[out] output The output tensor. Data types supported: U8 (Only if both inputs are U8) /S16/F32.
+ * @param[in] scale Scale to apply after multiplication.
+ * Scale must be positive and its value must be either 1/255 or 1/2^n where n is between 0 and 15.
+ * @param[in] overflow_policy Overflow policy.
+ * @param[in] rounding_policy Rounding policy.
+ */
+ void configure(const ITensor *input1, const ITensor *input2, ITensor *output, float scale, ConvertPolicy overflow_policy, RoundingPolicy rounding_policy);
+
+ // Inherited methods overridden:
+ void run(const Window &window) override;
+
+private:
+ /** Common signature for all the specialised multiplication functions with integer scaling factor
+ *
+ * @param[in] input1_ptr Pointer to the first input tensor.
+ * @param[in] input2_ptr Pointer to the second input tensor.
+ * @param[out] output_ptr Pointer to the output tensor.
+ */
+ using MulFunctionInt = void(const void *__restrict input1_ptr, const void *__restrict input2_ptr, void *__restrict output_ptr, int scale);
+ /** Common signature for all the specialised multiplication functions with fixed-point values
+ *
+ * @param[in] input1_ptr Pointer to the first input tensor.
+ * @param[in] input2_ptr Pointer to the second input tensor.
+ * @param[in] scale Scaling factor.
+ * @param[in] fixed_point_position Fixed-point position that expresses the number of bits for the fractional part of the number.
+ * @param[out] output_ptr Pointer to the output tensor.
+ */
+ using MulFunctionQInt = void(const void *__restrict input1_ptr, const void *__restrict input2_ptr, void *__restrict output_ptr, int scale, int fixed_point_position);
+ /** Common signature for all the specialised multiplication functions with float scaling factor
+ *
+ * @param[in] input1_ptr Pointer to the first input tensor.
+ * @param[in] input2_ptr Pointer to the second input tensor.
+ * @param[out] output_ptr Pointer to the output tensor.
+ */
+ using MulFunctionFloat = void(const void *__restrict input1_ptr, const void *__restrict input2_ptr, void *__restrict output_ptr, float scale);
+
+ MulFunctionFloat *_func_float;
+ MulFunctionInt *_func_int;
+ MulFunctionQInt *_func_q_int;
+
+private:
+ const ITensor *_input1;
+ const ITensor *_input2;
+ ITensor *_output;
+ float _scale;
+ int _scale_exponent;
+};
+}
+#endif /*__ARM_COMPUTE_NEPIXELWISEMULTIPLICATIONKERNEL_H__ */