0cfed22ed4
Description: 由于仓库中的Tesseract不是最新版本导致产生了一个bug，因此将Tesseract源码集成到项目中 Log: no Change-Id: I088de95d6c6ab670406daa8d47ed2ed46929c2c0
37 lines
1.4 KiB
C++
37 lines
1.4 KiB
C++
///////////////////////////////////////////////////////////////////////
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// File: dotproduct.h
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// Description: Native dot product function.
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//
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// (C) Copyright 2018, Google Inc.
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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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// http://www.apache.org/licenses/LICENSE-2.0
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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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///////////////////////////////////////////////////////////////////////
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#ifndef TESSERACT_ARCH_DOTPRODUCT_H_
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#define TESSERACT_ARCH_DOTPRODUCT_H_
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namespace tesseract {
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// Computes and returns the dot product of the n-vectors u and v.
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double DotProductNative(const double *u, const double *v, int n);
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// Uses Intel AVX intrinsics to access the SIMD instruction set.
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double DotProductAVX(const double *u, const double *v, int n);
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// Use Intel FMA.
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double DotProductFMA(const double *u, const double *v, int n);
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// Uses Intel SSE intrinsics to access the SIMD instruction set.
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double DotProductSSE(const double *u, const double *v, int n);
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} // namespace tesseract.
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#endif // TESSERACT_ARCH_DOTPRODUCT_H_
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