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/*
* Copyright (c) 2016-2018 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_NECHANNELCOMBINEKERNEL_H__
#define __ARM_COMPUTE_NECHANNELCOMBINEKERNEL_H__
#include "arm_compute/core/NEON/INEKernel.h"
#include <array>
#include <cstdint>
namespace arm_compute
{
class IMultiImage;
class ITensor;
using IImage = ITensor;
/** Interface for the channel combine kernel */
class NEChannelCombineKernel : public INEKernel
{
public:
const char *name() const override
{
return "NEChannelCombineKernel";
}
/** Default constructor */
NEChannelCombineKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEChannelCombineKernel(const NEChannelCombineKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEChannelCombineKernel &operator=(const NEChannelCombineKernel &) = delete;
/** Allow instances of this class to be moved */
NEChannelCombineKernel(NEChannelCombineKernel &&) = default;
/** Allow instances of this class to be moved */
NEChannelCombineKernel &operator=(NEChannelCombineKernel &&) = default;
/** Default destructor */
~NEChannelCombineKernel() = default;
/** Configure function's inputs and outputs.
*
* @param[in] plane0 The 2D plane that forms channel 0. Data type supported: U8
* @param[in] plane1 The 2D plane that forms channel 1. Data type supported: U8
* @param[in] plane2 The 2D plane that forms channel 2. Data type supported: U8
* @param[in] plane3 The 2D plane that forms channel 3. Data type supported: U8
* @param[out] output The single planar output tensor. Formats supported: RGB888/RGBA8888/UYVY422/YUYV422
*/
void configure(const ITensor *plane0, const ITensor *plane1, const ITensor *plane2, const ITensor *plane3, ITensor *output);
/** Configure function's inputs and outputs.
*
* @param[in] plane0 The 2D plane that forms channel 0. Data type supported: U8
* @param[in] plane1 The 2D plane that forms channel 1. Data type supported: U8
* @param[in] plane2 The 2D plane that forms channel 2. Data type supported: U8
* @param[out] output The multi planar output tensor. Formats supported: NV12/NV21/IYUV/YUV444
*/
void configure(const IImage *plane0, const IImage *plane1, const IImage *plane2, IMultiImage *output);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
bool is_parallelisable() const override;
private:
/** Combine 3 planes to form a three channel single plane tensor.
*
* @param[in] win Region on which to execute the kernel.
*/
void combine_3C(const Window &win);
/** Combine 4 planes to form a four channel single plane tensor.
*
* @param[in] win Region on which to execute the kernel.
*/
void combine_4C(const Window &win);
/** Combine 3 planes to form a single plane YUV tensor.
*
* @param[in] win Region on which to execute the kernel.
*/
template <bool is_yuyv>
void combine_YUV_1p(const Window &win);
/** Combine 3 planes to form a two plane YUV tensor.
*
* @param[in] win Region on which to execute the kernel.
*/
void combine_YUV_2p(const Window &win);
/** Combine 3 planes to form a three plane YUV tensor.
*
* @param[in] win Region on which to execute the kernel.
*/
void combine_YUV_3p(const Window &win);
/** Copies a full plane to the output tensor.
*
* @param[in] win Region on which to execute the kernel.
*/
void copy_plane(const Window &win, uint32_t plane_id);
/** Common signature for all the specialised ChannelCombine functions
*
* @param[in] window Region on which to execute the kernel.
*/
using ChannelCombineFunction = void (NEChannelCombineKernel::*)(const Window &window);
/** ChannelCombine function to use for the particular tensor types passed to configure() */
ChannelCombineFunction _func;
std::array<const ITensor *, 4> _planes;
ITensor *_output;
IMultiImage *_output_multi;
std::array<uint32_t, 3> _x_subsampling;
std::array<uint32_t, 3> _y_subsampling;
unsigned int _num_elems_processed_per_iteration;
bool _is_parallelizable;
};
} // namespace arm_compute
#endif /* __ARM_COMPUTE_NECHANNELCOMBINEKERNEL_H__ */
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