| /* |
| * 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/runtime/NEON/functions/NEHistogram.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/IDistribution1D.h" |
| #include "arm_compute/core/ITensor.h" |
| #include "arm_compute/core/TensorInfo.h" |
| #include "arm_compute/core/Validate.h" |
| #include "arm_compute/runtime/NEON/NEScheduler.h" |
| |
| using namespace arm_compute; |
| |
| NEHistogram::NEHistogram() |
| : _histogram_kernel(), _local_hist(), _window_lut(arm_compute::cpp14::make_unique<uint32_t[]>(window_lut_default_size)), _local_hist_size(0) |
| { |
| } |
| |
| void NEHistogram::configure(const IImage *input, IDistribution1D *output) |
| { |
| ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input); |
| ARM_COMPUTE_ERROR_ON(nullptr == output); |
| |
| // Allocate space for threads local histograms |
| _local_hist_size = output->num_bins() * NEScheduler::get().num_threads(); |
| _local_hist = arm_compute::cpp14::make_unique<uint32_t[]>(_local_hist_size); |
| |
| // Configure kernel |
| _histogram_kernel.configure(input, output, _local_hist.get(), _window_lut.get()); |
| } |
| |
| void NEHistogram::run() |
| { |
| // Calculate histogram of input. |
| NEScheduler::get().schedule(&_histogram_kernel, Window::DimY); |
| } |