tesseract  v4.0.0-17-g361f3264
Open Source OCR Engine
dotproductsse.h
1 // File: dotproductsse.h
3 // Description: Architecture-specific dot-product function.
4 // Author: Ray Smith
5 // Created: Wed Jul 22 10:57:05 PDT 2015
6 //
7 // (C) Copyright 2015, Google Inc.
8 // Licensed under the Apache License, Version 2.0 (the "License");
9 // you may not use this file except in compliance with the License.
10 // You may obtain a copy of the License at
11 // http://www.apache.org/licenses/LICENSE-2.0
12 // Unless required by applicable law or agreed to in writing, software
13 // distributed under the License is distributed on an "AS IS" BASIS,
14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 // See the License for the specific language governing permissions and
16 // limitations under the License.
18 
19 #ifndef TESSERACT_ARCH_DOTPRODUCTSSE_H_
20 #define TESSERACT_ARCH_DOTPRODUCTSSE_H_
21 
22 #include <cstdint> // for int32_t
23 
24 namespace tesseract {
25 
26 // Computes and returns the dot product of the n-vectors u and v.
27 // Uses Intel SSE intrinsics to access the SIMD instruction set.
28 double DotProductSSE(const double* u, const double* v, int n);
29 // Computes and returns the dot product of the n-vectors u and v.
30 // Uses Intel SSE intrinsics to access the SIMD instruction set.
31 int32_t IntDotProductSSE(const int8_t* u, const int8_t* v, int n);
32 
33 } // namespace tesseract.
34 
35 #endif // TESSERACT_ARCH_DOTPRODUCTSSE_H_
Definition: baseapi.cpp:94
double DotProductSSE(const double *u, const double *v, int n)
Definition: dotproductsse.cpp:27
int32_t IntDotProductSSE(const int8_t *u, const int8_t *v, int n)
Definition: dotproductsse.cpp:31