| /* |
| * Copyright (c) 2017-2020 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 "arm_compute/runtime/CL/functions/CLHOGDetector.h" |
| |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/runtime/CL/CLScheduler.h" |
| #include "src/core/CL/kernels/CLHOGDetectorKernel.h" |
| |
| #include <algorithm> |
| |
| using namespace arm_compute; |
| |
| CLHOGDetector::CLHOGDetector() |
| : _hog_detector_kernel(std::make_unique<CLHOGDetectorKernel>()), _detection_windows(nullptr), _num_detection_windows() |
| { |
| } |
| |
| CLHOGDetector::~CLHOGDetector() = default; |
| |
| void CLHOGDetector::configure(const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, float threshold, size_t idx_class) |
| { |
| configure(CLKernelLibrary::get().get_compile_context(), input, hog, detection_windows, detection_window_stride, threshold, idx_class); |
| } |
| |
| void CLHOGDetector::configure(const CLCompileContext &compile_context, const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, |
| float threshold, size_t idx_class) |
| { |
| _detection_windows = detection_windows; |
| |
| // Allocate buffer for storing the number of detected objects |
| _num_detection_windows = cl::Buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, sizeof(unsigned int)); |
| |
| // Configure HOGDetectorKernel |
| _hog_detector_kernel->configure(compile_context, input, hog, detection_windows, &_num_detection_windows, detection_window_stride, threshold, idx_class); |
| } |
| |
| void CLHOGDetector::run() |
| { |
| cl::CommandQueue q = CLScheduler::get().queue(); |
| |
| // Reset number of detections |
| const unsigned int init_num_detection_windows = _detection_windows->num_values(); |
| q.enqueueWriteBuffer(_num_detection_windows, CL_FALSE, 0, sizeof(unsigned int), &init_num_detection_windows); |
| |
| // Run CLHOGDetectorKernel |
| CLScheduler::get().enqueue(*_hog_detector_kernel); |
| |
| // Read number of detections |
| unsigned int num_detection_windows = 0; |
| q.enqueueReadBuffer(_num_detection_windows, CL_TRUE, 0, sizeof(unsigned int), &num_detection_windows); |
| |
| // Update the number of values stored in _detection_windows |
| _detection_windows->resize(static_cast<size_t>(num_detection_windows)); |
| |
| q.flush(); |
| } |