| /* |
| * Copyright (c) 2021-2022 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. |
| */ |
| #pragma once |
| |
| #include "pooling.hpp" |
| |
| #include <cstddef> |
| #include <functional> |
| #include <cstring> |
| |
| namespace arm_conv { |
| namespace pooling { |
| |
| template <typename TInput, typename TOutput, class OutputStage = Nothing> |
| struct PoolingImplementation |
| { |
| const PoolingMethod method; |
| const char * name; |
| std::function<bool(const PoolingArgs &, const OutputStage &)> is_supported; |
| std::function<uint64_t(const PoolingArgs &, const OutputStage &)> cycle_estimate; |
| std::function<PoolingCommon<TInput, TOutput> *(const PoolingArgs &, const OutputStage &)> initialise; |
| |
| bool get_is_supported(const PoolingArgs &args, const OutputStage &os) const |
| { |
| return (is_supported == nullptr) ? true : is_supported(args, os); |
| } |
| |
| uint64_t get_cycle_estimate(const PoolingArgs &args, const OutputStage &os) const |
| { |
| return (cycle_estimate == nullptr) ? 0 : cycle_estimate(args, os); |
| } |
| |
| PoolingCommon<TInput, TOutput> *get_instance(const PoolingArgs &args, const OutputStage &os) const |
| { |
| return initialise(args, os); |
| } |
| }; |
| |
| template <typename TInput, typename TOutput, class OutputStage = Nothing> |
| const PoolingImplementation<TInput, TOutput, OutputStage> *pooling_implementation_list(); |
| |
| template <typename TInput, typename TOutput, class OutputStage = Nothing> |
| bool find_implementation( |
| const PoolingArgs &args, |
| const OutputStage &os, |
| const PoolingImplementation<TInput, TOutput, OutputStage> * &selected |
| ) |
| { |
| // For now, return the first valid implementation |
| const auto *impl = pooling_implementation_list<TInput, TOutput, OutputStage>(); |
| for (; impl->method != PoolingMethod::DEFAULT; impl++) |
| { |
| if (args.config != nullptr) |
| { |
| // Apply filters provided by the configuration |
| const auto cfg = args.config; |
| |
| if (cfg->filter != "" && !std::strstr(impl->name, cfg->filter.c_str())) |
| { |
| continue; |
| } |
| } |
| |
| if (impl->get_is_supported(args, os)) |
| { |
| selected = impl; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| template <typename TInput, typename TOutput, class OutputStage> |
| UniquePoolingCommon<TInput, TOutput> pooling(const PoolingArgs &args, const OutputStage &os) |
| { |
| const PoolingImplementation<TInput, TOutput, OutputStage> *impl = nullptr; |
| const bool success = find_implementation<TInput, TOutput, OutputStage>(args, os, impl); |
| return UniquePoolingCommon<TInput, TOutput>(success ? impl->get_instance(args, os) : nullptr); |
| } |
| |
| template <class Strategy> |
| bool is_supported(const PoolingArgs &args, const Nothing &) |
| { |
| return ((args.pool_type == Strategy::pooling_type) && |
| (args.pool_window.rows == Strategy::pool_rows) && |
| (args.pool_window.cols == Strategy::pool_cols) && |
| (args.pool_stride.rows == Strategy::stride_rows) && |
| (args.pool_stride.cols == Strategy::stride_cols)); |
| } |
| |
| } // namespace pooling |
| } // namespace arm_conv |