| /* |
| * 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/core/GLES_COMPUTE/kernels/GCScaleKernel.h" |
| |
| #include "arm_compute/core/AccessWindowStatic.h" |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/GLES_COMPUTE/GCHelpers.h" |
| #include "arm_compute/core/GLES_COMPUTE/GCKernelLibrary.h" |
| #include "arm_compute/core/GLES_COMPUTE/IGCKernel.h" |
| #include "arm_compute/core/GLES_COMPUTE/IGCTensor.h" |
| #include "arm_compute/core/GLES_COMPUTE/OpenGLES.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/TensorInfo.h" |
| #include "arm_compute/core/Validate.h" |
| #include "support/StringSupport.h" |
| |
| #include <set> |
| #include <string> |
| |
| using namespace arm_compute; |
| |
| BorderSize GCScaleKernel::border_size() const |
| { |
| return BorderSize(1); |
| } |
| |
| void GCScaleKernel::configure(const IGCTensor *input, IGCTensor *output, const ScaleKernelInfo &info) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16); |
| ARM_COMPUTE_ERROR_ON_NULLPTR(output); |
| ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); |
| ARM_COMPUTE_ERROR_ON(output == input); |
| ARM_COMPUTE_ERROR_ON(info.interpolation_policy != InterpolationPolicy::NEAREST_NEIGHBOR); |
| |
| _input = input; |
| _output = output; |
| |
| // Compute the ratio between source width/height and destination width/height |
| const auto wr = static_cast<float>(input->info()->dimension(0)) / static_cast<float>(output->info()->dimension(0)); |
| const auto hr = static_cast<float>(input->info()->dimension(1)) / static_cast<float>(output->info()->dimension(1)); |
| |
| // Compute actual border size |
| const bool border_undefined = info.border_mode == BorderMode::UNDEFINED; |
| BorderSize border = border_undefined ? BorderSize(0) : border_size(); |
| |
| // Area interpolation behaves as Nearest Neighbour in case of up-sampling |
| auto interpolation_policy_to_use = info.interpolation_policy; |
| if(interpolation_policy_to_use == InterpolationPolicy::AREA && wr <= 1.f && hr <= 1.f) |
| { |
| interpolation_policy_to_use = InterpolationPolicy::NEAREST_NEIGHBOR; |
| } |
| else |
| { |
| ARM_COMPUTE_ERROR_ON(interpolation_policy_to_use == InterpolationPolicy::AREA); |
| } |
| |
| // Create kernel |
| std::set<std::string> build_opts; |
| build_opts.emplace("#define LOCAL_SIZE_X " + support::cpp11::to_string(1)); |
| build_opts.emplace("#define LOCAL_SIZE_Y " + support::cpp11::to_string(1)); |
| build_opts.emplace("#define LOCAL_SIZE_Z " + support::cpp11::to_string(1)); |
| |
| build_opts.emplace("#define DATA_TYPE_FP16"); |
| build_opts.emplace("#define BORDER_SIZE " + support::cpp11::to_string(border.right)); |
| if(info.sampling_policy == SamplingPolicy::TOP_LEFT) |
| { |
| build_opts.emplace("#define SAMPLING_POLICY_TOP_LEFT"); |
| } |
| else |
| { |
| build_opts.emplace("#define SAMPLING_POLICY_CENTER"); |
| } |
| |
| // Configure kernel window |
| unsigned int num_elems_processed_per_iteration = 4; |
| unsigned int input_width_alignment = 2; |
| |
| // performance optimization for 2x upscaling with no border |
| if((fabs(wr - 0.5) < 1e-6) && (fabs(hr - 0.5) < 1e-6) && border_undefined) |
| { |
| num_elems_processed_per_iteration = 8; |
| input_width_alignment = 4; |
| build_opts.emplace("#define SCALE_NEAREST_8X"); |
| } |
| else |
| { |
| build_opts.emplace("#define SCALE_NEAREST_GENERIC"); |
| } |
| |
| std::string interpolation_name = string_from_interpolation_policy(interpolation_policy_to_use); // NOLINT |
| std::transform(interpolation_name.begin(), interpolation_name.end(), interpolation_name.begin(), ::tolower); |
| std::string kernel_name = "scale_" + interpolation_name; |
| _kernel = GCKernelLibrary::get().create_kernel(kernel_name, build_opts); |
| |
| Window win = calculate_max_window(*output->info(), Steps(num_elems_processed_per_iteration)); |
| |
| const ValidRegion &input_valid_region = input->info()->valid_region(); |
| |
| const int total_width = border.left + input_valid_region.anchor[0] + input_valid_region.shape[0] + border.right; |
| const int padding_right = ceil_to_multiple(total_width, input_width_alignment) - border.left - input_valid_region.anchor[0] - input_valid_region.shape[0]; |
| |
| // Reads can occur within the valid region of the input |
| AccessWindowStatic input_access(input->info(), |
| input_valid_region.anchor[0] - border.left, input_valid_region.anchor[1] - border.top, |
| input_valid_region.anchor[0] + input_valid_region.shape[0] + padding_right, |
| input_valid_region.anchor[1] + input_valid_region.shape[1] + border.bottom); |
| |
| AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); |
| |
| update_window_and_padding(win, input_access, output_access); |
| |
| output_access.set_valid_region(win, calculate_valid_region_scale(*(input->info()), |
| output->info()->tensor_shape(), |
| info.interpolation_policy, |
| info.sampling_policy, |
| border_undefined)); |
| |
| IGCKernel::configure(win); |
| |
| unsigned int idx = 2 * num_arguments_per_3D_tensor(); //Skip the tensor parameters |
| _kernel.set_argument<float>(idx++, static_cast<float>(input->info()->dimension(0))); |
| _kernel.set_argument<float>(idx++, static_cast<float>(input->info()->dimension(1))); |
| _kernel.set_argument<float>(idx++, wr); |
| _kernel.set_argument<float>(idx++, hr); |
| } |
| |
| void GCScaleKernel::run(const Window &window) |
| { |
| ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IKernel::window(), window); |
| |
| _kernel.use(); |
| |
| _output->set_needs_shifting(true); |
| |
| Window slice = window.first_slice_window_3D(); |
| Window slice_in = window.first_slice_window_3D(); |
| |
| slice.shift(Window::DimX, -(_output->info()->padding()).left); |
| |
| do |
| { |
| unsigned int idx = 0; |
| add_3D_tensor_argument(idx, _input, 1, slice_in); |
| add_3D_tensor_argument(idx, _output, 2, slice); |
| _kernel.update_shader_params(); |
| enqueue(*this, slice); |
| } |
| while(window.slide_window_slice_3D(slice) && window.slide_window_slice_3D(slice_in)); |
| } |