Remove Compute Vision Neon support

Resolves COMPMID-4150

Change-Id: I316e8ab97de796666c71eadfde894715fcf4a1aa
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5141
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 0 insertions, 189 deletions

diff --git a/src/core/NEON/kernels/NEHOGDetectorKernel.cpp b/src/core/NEON/kernels/NEHOGDetectorKernel.cpp
deleted file mode 100644
index cba1d5538a..0000000000
--- a/src/core/NEON/kernels/NEHOGDetectorKernel.cpp
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * Copyright (c) 2016-2020 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.
- */
-#include "src/core/NEON/kernels/NEHOGDetectorKernel.h"
-
-#include "arm_compute/core/Error.h"
-#include "arm_compute/core/HOGInfo.h"
-#include "arm_compute/core/Helpers.h"
-#include "arm_compute/core/IAccessWindow.h"
-#include "arm_compute/core/Validate.h"
-#include "src/core/helpers/AutoConfiguration.h"
-#include "src/core/helpers/WindowHelpers.h"
-
-#include <arm_neon.h>
-
-using namespace arm_compute;
-
-NEHOGDetectorKernel::NEHOGDetectorKernel()
-    : _input(nullptr), _detection_windows(), _hog_descriptor(nullptr), _bias(0.0f), _threshold(0.0f), _idx_class(0), _num_bins_per_descriptor_x(0), _num_blocks_per_descriptor_y(0), _block_stride_width(0),
-      _block_stride_height(0), _detection_window_width(0), _detection_window_height(0), _max_num_detection_windows(0), _mutex()
-{
-}
-
-void NEHOGDetectorKernel::configure(const ITensor *input, const IHOG *hog, IDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, float threshold, uint16_t idx_class)
-{
-    ARM_COMPUTE_ERROR_ON_DATA_TYPE_NOT_IN(input, DataType::F32);
-    ARM_COMPUTE_ERROR_ON(hog == nullptr);
-    ARM_COMPUTE_ERROR_ON(detection_windows == nullptr);
-    ARM_COMPUTE_ERROR_ON((detection_window_stride.width % hog->info()->block_stride().width) != 0);
-    ARM_COMPUTE_ERROR_ON((detection_window_stride.height % hog->info()->block_stride().height) != 0);
-
-    const Size2D &detection_window_size = hog->info()->detection_window_size();
-    const Size2D &block_size            = hog->info()->block_size();
-    const Size2D &block_stride          = hog->info()->block_stride();
-
-    _input                       = input;
-    _detection_windows           = detection_windows;
-    _threshold                   = threshold;
-    _idx_class                   = idx_class;
-    _hog_descriptor              = hog->descriptor();
-    _bias                        = _hog_descriptor[hog->info()->descriptor_size() - 1];
-    _num_bins_per_descriptor_x   = ((detection_window_size.width - block_size.width) / block_stride.width + 1) * input->info()->num_channels();
-    _num_blocks_per_descriptor_y = (detection_window_size.height - block_size.height) / block_stride.height + 1;
-    _block_stride_width          = block_stride.width;
-    _block_stride_height         = block_stride.height;
-    _detection_window_width      = detection_window_size.width;
-    _detection_window_height     = detection_window_size.height;
-    _max_num_detection_windows   = detection_windows->max_num_values();
-
-    ARM_COMPUTE_ERROR_ON((_num_bins_per_descriptor_x * _num_blocks_per_descriptor_y + 1) != hog->info()->descriptor_size());
-
-    // Get the number of blocks along the x and y directions of the input tensor
-    const ValidRegion &valid_region = input->info()->valid_region();
-    const size_t       num_blocks_x = valid_region.shape[0];
-    const size_t       num_blocks_y = valid_region.shape[1];
-
-    // Get the number of blocks along the x and y directions of the detection window
-    const size_t num_blocks_per_detection_window_x = detection_window_size.width / block_stride.width;
-    const size_t num_blocks_per_detection_window_y = detection_window_size.height / block_stride.height;
-
-    const size_t window_step_x = detection_window_stride.width / block_stride.width;
-    const size_t window_step_y = detection_window_stride.height / block_stride.height;
-
-    // Configure kernel window
-    Window win;
-    win.set(Window::DimX, Window::Dimension(0, floor_to_multiple(num_blocks_x - num_blocks_per_detection_window_x, window_step_x) + window_step_x, window_step_x));
-    win.set(Window::DimY, Window::Dimension(0, floor_to_multiple(num_blocks_y - num_blocks_per_detection_window_y, window_step_y) + window_step_y, window_step_y));
-
-    constexpr unsigned int num_elems_read_per_iteration = 1;
-    const unsigned int     num_rows_read_per_iteration  = _num_blocks_per_descriptor_y;
-
-    update_window_and_padding(win, AccessWindowRectangle(input->info(), 0, 0, num_elems_read_per_iteration, num_rows_read_per_iteration));
-
-    INEKernel::configure(win);
-}
-
-void NEHOGDetectorKernel::run(const Window &window, const ThreadInfo &info)
-{
-    ARM_COMPUTE_UNUSED(info);
-    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
-    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IKernel::window(), window);
-    ARM_COMPUTE_ERROR_ON(_hog_descriptor == nullptr);
-
-    const size_t in_step_y = _input->info()->strides_in_bytes()[Window::DimY] / data_size_from_type(_input->info()->data_type());
-
-    Iterator in(_input, window);
-
-    execute_window_loop(window, [&](const Coordinates & id)
-    {
-        const auto *in_row_ptr = reinterpret_cast<const float *>(in.ptr());
-
-        // Init score_f32 with 0
-        float32x4_t score_f32 = vdupq_n_f32(0.0f);
-
-        // Init score with bias
-        float score = _bias;
-
-        // Compute Linear SVM
-        for(size_t yb = 0; yb < _num_blocks_per_descriptor_y; ++yb, in_row_ptr += in_step_y)
-        {
-            int32_t xb = 0;
-
-            const int32_t offset_y = yb * _num_bins_per_descriptor_x;
-
-            for(; xb < static_cast<int32_t>(_num_bins_per_descriptor_x) - 16; xb += 16)
-            {
-                // Load descriptor values
-                const float32x4x4_t a_f32 =
-                {
-                    {
-                        vld1q_f32(&in_row_ptr[xb + 0]),
-                        vld1q_f32(&in_row_ptr[xb + 4]),
-                        vld1q_f32(&in_row_ptr[xb + 8]),
-                        vld1q_f32(&in_row_ptr[xb + 12])
-                    }
-                };
-
-                // Load detector values
-                const float32x4x4_t b_f32 =
-                {
-                    {
-                        vld1q_f32(&_hog_descriptor[xb + 0 + offset_y]),
-                        vld1q_f32(&_hog_descriptor[xb + 4 + offset_y]),
-                        vld1q_f32(&_hog_descriptor[xb + 8 + offset_y]),
-                        vld1q_f32(&_hog_descriptor[xb + 12 + offset_y])
-                    }
-                };
-
-                // Multiply accumulate
-                score_f32 = vmlaq_f32(score_f32, a_f32.val[0], b_f32.val[0]);
-                score_f32 = vmlaq_f32(score_f32, a_f32.val[1], b_f32.val[1]);
-                score_f32 = vmlaq_f32(score_f32, a_f32.val[2], b_f32.val[2]);
-                score_f32 = vmlaq_f32(score_f32, a_f32.val[3], b_f32.val[3]);
-            }
-
-            for(; xb < static_cast<int32_t>(_num_bins_per_descriptor_x); ++xb)
-            {
-                const float a = in_row_ptr[xb];
-                const float b = _hog_descriptor[xb + offset_y];
-
-                score += a * b;
-            }
-        }
-
-        score += vgetq_lane_f32(score_f32, 0);
-        score += vgetq_lane_f32(score_f32, 1);
-        score += vgetq_lane_f32(score_f32, 2);
-        score += vgetq_lane_f32(score_f32, 3);
-
-        if(score > _threshold)
-        {
-            if(_detection_windows->num_values() < _max_num_detection_windows)
-            {
-                DetectionWindow win;
-                win.x         = (id.x() * _block_stride_width);
-                win.y         = (id.y() * _block_stride_height);
-                win.width     = _detection_window_width;
-                win.height    = _detection_window_height;
-                win.idx_class = _idx_class;
-                win.score     = score;
-
-                arm_compute::unique_lock<arm_compute::Mutex> lock(_mutex);
-                _detection_windows->push_back(win);
-                lock.unlock();
-            }
-        }
-    },
-    in);
-}