Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #include "arm_compute/runtime/CL/functions/CLHOGDetector.h" |
| 25 | |
| 26 | #include "arm_compute/core/CL/kernels/CLHOGDetectorKernel.h" |
| 27 | #include "arm_compute/core/Helpers.h" |
| 28 | #include "arm_compute/runtime/CL/CLScheduler.h" |
| 29 | |
| 30 | #include <algorithm> |
| 31 | |
| 32 | using namespace arm_compute; |
| 33 | |
| 34 | CLHOGDetector::CLHOGDetector() |
| 35 | : _hog_detector_kernel(), _detection_windows(nullptr), _num_detection_windows() |
| 36 | { |
| 37 | } |
| 38 | |
| 39 | void CLHOGDetector::configure(const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, float threshold, size_t idx_class) |
| 40 | { |
| 41 | _detection_windows = detection_windows; |
| 42 | |
| 43 | // Allocate buffer for storing the number of detected objects |
| 44 | _num_detection_windows = cl::Buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, sizeof(unsigned int)); |
| 45 | |
| 46 | // Configure HOGDetectorKernel |
| 47 | _hog_detector_kernel.configure(input, hog, detection_windows, &_num_detection_windows, detection_window_stride, threshold, idx_class); |
| 48 | } |
| 49 | |
| 50 | void CLHOGDetector::run() |
| 51 | { |
| 52 | cl::CommandQueue q = CLScheduler::get().queue(); |
| 53 | |
| 54 | // Reset number of detections |
| 55 | const unsigned int init_num_detection_windows = _detection_windows->num_values(); |
| 56 | q.enqueueWriteBuffer(_num_detection_windows, CL_FALSE, 0, sizeof(unsigned int), &init_num_detection_windows); |
| 57 | |
| 58 | // Run CLHOGDetectorKernel |
| 59 | CLScheduler::get().enqueue(_hog_detector_kernel); |
| 60 | |
| 61 | // Read number of detections |
| 62 | unsigned int num_detection_windows = 0; |
| 63 | q.enqueueReadBuffer(_num_detection_windows, CL_TRUE, 0, sizeof(unsigned int), &num_detection_windows); |
| 64 | |
| 65 | // Update the number of values stored in _detection_windows |
| 66 | _detection_windows->resize(static_cast<size_t>(num_detection_windows)); |
| 67 | |
| 68 | q.flush(); |
| 69 | } |