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91 lines
2.9 KiB
91 lines
2.9 KiB
// Copyright 2016 The Gemmlowp Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef GEMMLOWP_META_SINGLE_THREAD_TRANSFORM_H_
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#define GEMMLOWP_META_SINGLE_THREAD_TRANSFORM_H_
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#include <iostream>
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#include "base.h"
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namespace gemmlowp {
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namespace meta {
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template <typename Params, int kernel_size>
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void Transform1D(const Params& params);
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namespace internal {
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class Transform1DExecutor {
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public:
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template <typename P, int kernel_size, int leftovers>
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static void ExecuteDispatch1D(const P& params) {
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Transform1DKernel<typename P::InType, typename P::OutType,
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typename P::Kernel, kernel_size,
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leftovers>::Transform(params.input, params.kernel,
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params.output);
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}
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};
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template <typename E, typename P, int kernel_size, int variable_leftovers>
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struct Dispatch1D {
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static void Execute(const P& params, int leftovers) {
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#ifdef DEBUG
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#ifdef DEBUG_METAGEMM_VERBOSE
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std::cout << "Dispatch(1): " << kernel_size << ":" << variable_leftovers
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<< std::endl
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<< std::flush;
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#endif
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#endif
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if (leftovers == variable_leftovers) {
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E::template ExecuteDispatch1D<P, kernel_size, variable_leftovers>(params);
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} else {
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Dispatch1D<E, P, kernel_size, variable_leftovers - 1>::Execute(params,
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leftovers);
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}
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}
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};
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template <typename E, typename P, int kernel_size>
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struct Dispatch1D<E, P, kernel_size, 0> {
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static void Execute(const P& params, int leftovers) {
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#ifdef DEBUG
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#ifdef DEBUG_METAGEMM_VERBOSE
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std::cout << "Dispatch(1): " << kernel_size << ": 0" << std::endl
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<< std::flush;
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#endif
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#endif
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if (leftovers == 0) {
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E::template ExecuteDispatch1D<P, kernel_size, 0>(params);
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} else {
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std::cerr << "FATAL: dispatch1D failed: ran out of cases." << std::endl
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<< std::flush;
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std::exit(1);
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}
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}
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};
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} // namespace internal
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template <typename Params, int kernel_size>
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inline void Transform1D(const Params& params) {
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internal::Dispatch1D<internal::Transform1DExecutor, Params, kernel_size,
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kernel_size - 1>::Execute(params, params.kernel.count %
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kernel_size);
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}
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} // namespace meta
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} // namespace gemmlowp
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#endif // GEMMLOWP_META_SINGLE_THREAD_TRANSFORM_H_
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