| /* |
| * 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. |
| */ |
| #include "arm_compute/runtime/NEON/NEFunctions.h" |
| |
| #include "arm_compute/core/Types.h" |
| #include "utils/ImageLoader.h" |
| #include "utils/Utils.h" |
| |
| using namespace arm_compute; |
| using namespace utils; |
| |
| class NEONScaleExample : public Example |
| { |
| public: |
| bool do_setup(int argc, char **argv) override |
| { |
| PPMLoader ppm; |
| |
| if(argc < 2) |
| { |
| // Print help |
| std::cout << "Usage: ./build/neon_scale[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); |
| } |
| |
| constexpr int scale_factor = 2; |
| |
| TensorInfo dst_tensor_info(src.info()->dimension(0) / scale_factor, src.info()->dimension(1) / scale_factor, |
| Format::U8); |
| |
| // Configure the destination image |
| dst.allocator()->init(dst_tensor_info); |
| |
| // Configure Scale function object: |
| scale.configure(&src, &dst, ScaleKernelInfo{ |
| InterpolationPolicy::NEAREST_NEIGHBOR, |
| BorderMode::UNDEFINED, |
| PixelValue(), |
| SamplingPolicy::CENTER, |
| false |
| }); |
| |
| // Allocate all the images |
| src.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 |
| { |
| // Run the scale operation: |
| scale.run(); |
| } |
| 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: |
| Image src{}, dst{}; |
| NEScale scale{}; |
| 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<NEONScaleExample>(argc, argv); |
| } |