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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (c) 2018 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_NEHASHTABLELOOKUPKERNEL_H__
#define __ARM_COMPUTE_NEHASHTABLELOOKUPKERNEL_H__
#include "arm_compute/core/NEON/INEKernel.h"
#include "arm_compute/core/Types.h"
namespace arm_compute
{
class ITensor;
/** NEON kernel to perform HashtableLookup operation */
class NEHashtableLookupKernel : public INEKernel
{
public:
const char *name() const override { return "NEHashtableLookupKernel"; }
/** Default constructor */
NEHashtableLookupKernel();
/** Prevent instances of this class from being copied (As this class contains pointers). */
NEHashtableLookupKernel(const NEHashtableLookupKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers). */
NEHashtableLookupKernel &operator=(const NEHashtableLookupKernel &) = delete;
/** Allow instances of this class to be moved */
NEHashtableLookupKernel(NEHashtableLookupKernel &&) = default;
/** Allow instances of this class to be moved */
NEHashtableLookupKernel &operator=(NEHashtableLookupKernel &&) = default;
/** Initialize the kernel's inputs, outputs.
*
* @param[in] lookups Lookups 1D tensor that values are indices into the first dimension of
* input. Data types supported: S32
* @param[in] keys Keys 1D tensor. keys and input pair represent a map.
* Data types supported: S32
* @param[in] input Source tensor.
* Data types supported: U8/S8/QASYMM8/U16/S16/U32/S32/F16/F32
* @param[out] output Destination tensor. Data types and data layouts supported: Same as @p
* input.
* @param[out] hits Hits 1D tensor. A boolean tensor that indicates whether the lookup hits
* (True) or not (False). Data types supported: U8/QASYMM8
* input.
*/
void configure(const ITensor *lookups, const ITensor *keys, const ITensor *input, ITensor *output,
ITensor *hits);
/** Static function to check if given info will lead to a valid configuration of @ref
* NEHashtableLookupKernel
*
* @param[in] lookups The lookups tensor info. Data types supported: S32.
* @param[in] keys The keys tensor info. keys and input pair represent a map.
* Data types supported: S32
* @param[in] input The input tensor info.
* Data types supported: U8/S8/QASYMM8/U16/S16/U32/S32/F16/F32
* @param[out] output The output tensor info. Data types and data layouts supported: Same as @p
* input.
* @param[out] hits The hits tensor info. A boolean tensor that indicates whether the lookup
* hits (True) or not (False). Data types supported: U8/QASYMM8
*
* @return a status
*/
static Status validate(const ITensorInfo *lookups, const ITensorInfo *keys,
const ITensorInfo *input, const ITensorInfo *output,
const ITensorInfo *hits);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
private:
const ITensor *_lookups; /** Lookups tensor */
const ITensor *_keys; /** Keys tensor */
const ITensor *_input; /** Source tensor */
ITensor *_output; /** Destination tensor */
ITensor *_hits; /** Hits tensor */
};
} // namespace arm_compute
#endif /*__ARM_COMPUTE_NEHASHTABLELOOKUPKERNEL_H__ */
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