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+/*
+ * Copyright (c) 2018-2020 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_NECHANNELSHUFFLELAYERKERNEL_H
+#define ARM_COMPUTE_NECHANNELSHUFFLELAYERKERNEL_H
+
+#include "src/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+// Forward declarations
+class ITensor;
+
+/** Interface for the channel shuffle kernel */
+class NEChannelShuffleLayerKernel : public INEKernel
+{
+public:
+ const char *name() const override
+ {
+ return "NEChannelShuffleLayerKernel";
+ }
+ /** Default constructor */
+ NEChannelShuffleLayerKernel();
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEChannelShuffleLayerKernel(const NEChannelShuffleLayerKernel &) = delete;
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEChannelShuffleLayerKernel &operator=(const NEChannelShuffleLayerKernel &) = delete;
+ /** Allow instances of this class to be moved */
+ NEChannelShuffleLayerKernel(NEChannelShuffleLayerKernel &&) = default;
+ /** Allow instances of this class to be moved */
+ NEChannelShuffleLayerKernel &operator=(NEChannelShuffleLayerKernel &&) = default;
+ /** Default destructor */
+ ~NEChannelShuffleLayerKernel() = default;
+ /** Configure function's inputs and outputs.
+ *
+ * @param[in] input Input tensor. Data types supported: All
+ * @param[out] output Output tensor. Data type supported: Same as @p input
+ * @param[in] num_groups Number of groups. Must be greater than 1 and the number of channels of the tensors must be a multiple of the number of groups.
+ */
+ void configure(const ITensor *input, ITensor *output, unsigned int num_groups);
+ /** Static function to check if given info will lead to a valid configuration of @ref NEChannelShuffleLayerKernel
+ *
+ * @param[in] input Input tensor. Data types supported: All
+ * @param[out] output Output tensor. Data type supported: Same as @p input
+ * @param[in] num_groups Number of groups. Must be greater than 1 and the number of channels of the tensors must be a multiple of the number of groups.
+ *
+ * @return a status
+ */
+ static Status validate(const ITensorInfo *input, const ITensorInfo *output, unsigned int num_groups);
+
+ // Inherited methods overridden:
+ void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+ const ITensor *_input;
+ ITensor *_output;
+ unsigned int _num_groups;
+};
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_NECHANNELSHUFFLELAYERKERNEL_H */