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comparison mupdf-source/thirdparty/tesseract/src/arch/dotproduct.cpp @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 ///////////////////////////////////////////////////////////////////////
2 // File: dotproduct.cpp
3 // Description: Native dot product function.
4 //
5 // (C) Copyright 2018, Google Inc.
6 // Licensed under the Apache License, Version 2.0 (the "License");
7 // you may not use this file except in compliance with the License.
8 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 ///////////////////////////////////////////////////////////////////////
16
17 #include "dotproduct.h"
18
19 namespace tesseract {
20
21 // Computes and returns the dot product of the two n-vectors u and v.
22 TFloat DotProductNative(const TFloat *u, const TFloat *v, int n) {
23 TFloat total = 0;
24 #if defined(OPENMP_SIMD) || defined(_OPENMP)
25 #pragma omp simd reduction(+:total)
26 #endif
27 for (int k = 0; k < n; k++) {
28 total += u[k] * v[k];
29 }
30 return total;
31 }
32
33 } // namespace tesseract