From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- src/core/NEON/kernels/NEMedian3x3Kernel.cpp | 135 ++++++++++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 src/core/NEON/kernels/NEMedian3x3Kernel.cpp (limited to 'src/core/NEON/kernels/NEMedian3x3Kernel.cpp') diff --git a/src/core/NEON/kernels/NEMedian3x3Kernel.cpp b/src/core/NEON/kernels/NEMedian3x3Kernel.cpp new file mode 100644 index 0000000000..601a0e109f --- /dev/null +++ b/src/core/NEON/kernels/NEMedian3x3Kernel.cpp @@ -0,0 +1,135 @@ +/* + * 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. + */ +#include "arm_compute/core/NEON/kernels/NEMedian3x3Kernel.h" + +#include "arm_compute/core/Coordinates.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/IAccessWindow.h" +#include "arm_compute/core/ITensor.h" +#include "arm_compute/core/NEON/INEKernel.h" +#include "arm_compute/core/Validate.h" + +#include +#include + +using namespace arm_compute; + +namespace +{ +inline void sort(uint8x8_t &a, uint8x8_t &b) +{ + const uint8x8_t min = vmin_u8(a, b); + const uint8x8_t max = vmax_u8(a, b); + a = min; + b = max; +} +} // namespace + +BorderSize NEMedian3x3Kernel::border_size() const +{ + return BorderSize(1); +} + +void NEMedian3x3Kernel::configure(const ITensor *input, ITensor *output, bool border_undefined) +{ + _input = input; + _output = output; + + // Configure kernel window + constexpr unsigned int num_elems_processed_per_iteration = 8; + constexpr unsigned int num_elems_read_per_iteration = 16; + constexpr unsigned int num_elems_written_per_iteration = 8; + constexpr unsigned int num_rows_read_per_iteration = 3; + constexpr int rect_offset_xy = -1; + + Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); + AccessWindowHorizontal output_access(output->info(), 0, num_elems_written_per_iteration); + + update_window_and_padding(win, + AccessWindowRectangle(input->info(), rect_offset_xy, rect_offset_xy, num_elems_read_per_iteration, num_rows_read_per_iteration), + output_access); + + output_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); + + INEKernel::configure(win); +} + +void NEMedian3x3Kernel::run(const Window &window) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INESimpleKernel::window(), window); + + const unsigned char *input_bot_ptr = _input->ptr_to_element(Coordinates(-1, -1)); + const unsigned char *input_mid_ptr = _input->ptr_to_element(Coordinates(-1, 0)); + const unsigned char *input_top_ptr = _input->ptr_to_element(Coordinates(-1, +1)); + + Iterator input(_input, window); + Iterator output(_output, window); + + execute_window_loop(window, [&](const Coordinates & id) + { + const uint8x16_t top_data = vld1q_u8(input_top_ptr + input.offset()); + const uint8x16_t mid_data = vld1q_u8(input_mid_ptr + input.offset()); + const uint8x16_t bot_data = vld1q_u8(input_bot_ptr + input.offset()); + + uint8x8_t p0 = vget_low_u8(top_data); + uint8x8_t p1 = vext_u8(vget_low_u8(top_data), vget_high_u8(top_data), 1); + uint8x8_t p2 = vext_u8(vget_low_u8(top_data), vget_high_u8(top_data), 2); + uint8x8_t p3 = vget_low_u8(mid_data); + uint8x8_t p4 = vext_u8(vget_low_u8(mid_data), vget_high_u8(mid_data), 1); + uint8x8_t p5 = vext_u8(vget_low_u8(mid_data), vget_high_u8(mid_data), 2); + uint8x8_t p6 = vget_low_u8(bot_data); + uint8x8_t p7 = vext_u8(vget_low_u8(bot_data), vget_high_u8(bot_data), 1); + uint8x8_t p8 = vext_u8(vget_low_u8(bot_data), vget_high_u8(bot_data), 2); + + sort(p1, p2); + sort(p4, p5); + sort(p7, p8); + + sort(p0, p1); + sort(p3, p4); + sort(p6, p7); + + sort(p1, p2); + sort(p4, p5); + sort(p7, p8); + + sort(p0, p3); + sort(p5, p8); + sort(p4, p7); + + sort(p3, p6); + sort(p1, p4); + sort(p2, p5); + + sort(p4, p7); + sort(p4, p2); + sort(p6, p4); + + sort(p4, p2); + + vst1_u8(output.ptr(), p4); + }, + input, output); +} -- cgit v1.2.1