chromium/third_party/gemmlowp/src/public/map.h

// Copyright 2015 The Gemmlowp Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// map.h: a minimalist view-existing-buffer-as-a-matrix class,
// which is how gemmlowp interfaces with external matrix data.

#ifndef GEMMLOWP_PUBLIC_MAP_H_
#define GEMMLOWP_PUBLIC_MAP_H_

#include "../internal/common.h"

namespace gemmlowp {

// The two storage orders allowed to map buffers as matrices: ColMajor
// means column-major, RowMajor means row-major.
enum class MapOrder { … };

// A MatrixMap is a view of an existing buffer as a matrix. It does not own
// the buffer.
template <typename tScalar, MapOrder tOrder>
class MatrixMap { … };

enum class VectorShape { … };

// A VectorMap is a view of an existing buffer as a vector. It does not own
// the buffer.
template <typename tScalar, VectorShape tShape>
class VectorMap { … };

// A VectorDup is a (duplicated value) vector where all components are the same.
template <typename tScalar, VectorShape tShape>
class VectorDup { … };

}  // namespace gemmlowp

#endif  // GEMMLOWP_PUBLIC_MAP_H_