| /* |
| * Copyright (c) 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. |
| */ |
| #ifndef ARM_COMPUTE_CL /* Needed by Utils.cpp to handle OpenCL exceptions properly */ |
| #error "This example needs to be built with -DARM_COMPUTE_CL" |
| #endif /* ARM_COMPUTE_CL */ |
| |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/runtime/CL/CLFunctions.h" |
| #include "arm_compute/runtime/CL/CLScheduler.h" |
| #include "utils/Utils.h" |
| |
| using namespace arm_compute; |
| using namespace utils; |
| |
| void main_cl_events(int argc, const char **argv) |
| { |
| /** [OpenCL events] **/ |
| PPMLoader ppm; |
| CLImage src, tmp_scale_median, tmp_median_gauss, dst; |
| constexpr int scale_factor = 2; |
| |
| CLScheduler::get().default_init(); |
| |
| if(argc < 2) |
| { |
| // Print help |
| std::cout << "Usage: ./build/cl_events [input_image.ppm]\n\n"; |
| std::cout << "No input_image provided, creating a dummy 640x480 image\n"; |
| // Create an empty grayscale 640x480 image |
| src.allocator()->init(TensorInfo(640, 480, Format::U8)); |
| } |
| else |
| { |
| ppm.open(argv[1]); |
| ppm.init_image(src, Format::U8); |
| } |
| |
| // Declare and configure the functions to create the following pipeline: scale -> median -> gauss |
| CLScale scale; |
| CLMedian3x3 median; |
| CLGaussian5x5 gauss; |
| |
| TensorInfo dst_info(src.info()->dimension(0) / scale_factor, src.info()->dimension(1) / scale_factor, Format::U8); |
| |
| // Configure the temporary and destination images |
| dst.allocator()->init(dst_info); |
| tmp_scale_median.allocator()->init(dst_info); |
| tmp_median_gauss.allocator()->init(dst_info); |
| |
| //Configure the functions: |
| scale.configure(&src, &tmp_scale_median, InterpolationPolicy::NEAREST_NEIGHBOR, BorderMode::REPLICATE); |
| median.configure(&tmp_scale_median, &tmp_median_gauss, BorderMode::REPLICATE); |
| gauss.configure(&tmp_median_gauss, &dst, BorderMode::REPLICATE); |
| |
| // Allocate all the images |
| src.allocator()->allocate(); |
| dst.allocator()->allocate(); |
| tmp_scale_median.allocator()->allocate(); |
| tmp_median_gauss.allocator()->allocate(); |
| // Fill the input image with the content of the PPM image if a filename was provided: |
| if(ppm.is_open()) |
| { |
| ppm.fill_image(src); |
| } |
| |
| // Enqueue and flush the scale OpenCL kernel: |
| scale.run(); |
| // Create a synchronisation event between scale and median: |
| cl::Event scale_event = CLScheduler::get().enqueue_sync_event(); |
| // Enqueue and flush the median OpenCL kernel: |
| median.run(); |
| // Enqueue and flush the Gaussian OpenCL kernel: |
| gauss.run(); |
| |
| //Make sure all the OpenCL jobs are done executing: |
| scale_event.wait(); // Block until Scale is done executing (Median3x3 and Gaussian5x5 might still be running) |
| CLScheduler::get().sync(); // Block until Gaussian5x5 is done executing |
| |
| // Save the result to file: |
| if(ppm.is_open()) |
| { |
| const std::string output_filename = std::string(argv[1]) + "_out.ppm"; |
| save_to_ppm(dst, output_filename); // save_to_ppm maps and unmaps the image to store as PPM |
| } |
| /** [OpenCL events] **/ |
| } |
| |
| /** Main program for convolution test |
| * |
| * @param[in] argc Number of arguments |
| * @param[in] argv Arguments ( [optional] Path to PPM image to process ) |
| */ |
| int main(int argc, const char **argv) |
| { |
| return utils::run_example(argc, argv, main_cl_events); |
| } |