| /* |
| * 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. |
| */ |
| #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/CL/OpenCL.h" |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/runtime/CL/CLScheduler.h" |
| #include "arm_compute/runtime/CL/functions/CLConvolution.h" |
| #include "utils/ImageLoader.h" |
| #include "utils/Utils.h" |
| |
| using namespace arm_compute; |
| using namespace utils; |
| |
| /** Gaussian 3x3 matrix |
| */ |
| const std::array<int16_t, 9> gaussian3x3 = |
| { |
| 1, 2, 1, |
| 2, 4, 2, |
| 1, 2, 1 |
| }; |
| |
| /** Gaussian 5x5 matrix |
| */ |
| const std::array<int16_t, 25> gaussian5x5 = |
| { |
| 1, 4, 6, 4, 1, |
| 4, 16, 24, 16, 4, |
| 6, 24, 36, 24, 6, |
| 4, 16, 24, 16, 4, |
| 1, 4, 6, 4, 1 |
| }; |
| |
| class CLConvolutionExample : public Example |
| { |
| public: |
| bool do_setup(int argc, char **argv) override |
| { |
| PPMLoader ppm; |
| |
| CLScheduler::get().default_init(); |
| |
| if(argc < 2) |
| { |
| // Print help |
| std::cout << "Usage: ./build/cl_convolution [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); |
| } |
| |
| // Configure the temporary and destination images |
| tmp.allocator()->init(*src.info()); |
| dst.allocator()->init(*src.info()); |
| |
| // Apply a Gaussian 3x3 filter to the source image followed by a Gaussian 5x5: |
| conv3x3.configure(&src, &tmp, gaussian3x3.data(), 0 /* Let arm_compute calculate the scale */, BorderMode::UNDEFINED); |
| conv5x5.configure(&tmp, &dst, gaussian5x5.data(), 0 /* Let arm_compute calculate the scale */, BorderMode::UNDEFINED); |
| |
| // Allocate all the images |
| src.allocator()->allocate(); |
| tmp.allocator()->allocate(); |
| dst.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); |
| output_filename = std::string(argv[1]) + "_out.ppm"; |
| } |
| |
| return true; |
| } |
| void do_run() override |
| { |
| // Execute the functions: |
| conv3x3.run(); |
| conv5x5.run(); |
| |
| // Make sure all the OpenCL jobs are done executing: |
| CLScheduler::get().sync(); |
| } |
| void do_teardown() override |
| { |
| // Save the result to file: |
| if(!output_filename.empty()) |
| { |
| save_to_ppm(dst, output_filename); // save_to_ppm maps and unmaps the image to store as PPM |
| } |
| } |
| |
| private: |
| CLImage src{}; |
| CLImage tmp{}; |
| CLImage dst{}; |
| CLConvolution3x3 conv3x3{}; |
| CLConvolution5x5 conv5x5{}; |
| std::string output_filename{}; |
| }; |
| |
| /** 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, char **argv) |
| { |
| return utils::run_example<CLConvolutionExample>(argc, argv); |
| } |