Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/ccmain/par_control.cpp @ 21:2f43e400f144

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Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
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1 ///////////////////////////////////////////////////////////////////////
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2 // File: par_control.cpp
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3 // Description: Control code for parallel implementation.
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4 // Author: Ray Smith
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5 //
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6 // (C) Copyright 2013, Google Inc.
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7 // Licensed under the Apache License, Version 2.0 (the "License");
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8 // you may not use this file except in compliance with the License.
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9 // You may obtain a copy of the License at
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10 // http://www.apache.org/licenses/LICENSE-2.0
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11 // Unless required by applicable law or agreed to in writing, software
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12 // distributed under the License is distributed on an "AS IS" BASIS,
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13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 // See the License for the specific language governing permissions and
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15 // limitations under the License.
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16 //
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17 ///////////////////////////////////////////////////////////////////////
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19 #include "tesseractclass.h"
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20 #ifdef _OPENMP
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21 # include <omp.h>
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22 #endif // _OPENMP
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24 namespace tesseract {
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26 struct BlobData {
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27 BlobData() = default;
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28 BlobData(int index, Tesseract *tess, const WERD_RES &word)
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29 : blob(word.chopped_word->blobs[index])
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30 , tesseract(tess)
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31 , choices(&(*word.ratings)(index, index)) {}
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32
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33 TBLOB *blob = nullptr;
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34 Tesseract *tesseract = nullptr;
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35 BLOB_CHOICE_LIST **choices = nullptr;
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36 };
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38 void Tesseract::PrerecAllWordsPar(const std::vector<WordData> &words) {
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39 // Prepare all the blobs.
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40 std::vector<BlobData> blobs;
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41 for (const auto &w : words) {
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42 if (w.word->ratings != nullptr && w.word->ratings->get(0, 0) == nullptr) {
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43 for (size_t s = 0; s < w.lang_words.size(); ++s) {
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44 Tesseract *sub = s < sub_langs_.size() ? sub_langs_[s] : this;
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45 const WERD_RES &word = *w.lang_words[s];
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46 for (unsigned b = 0; b < word.chopped_word->NumBlobs(); ++b) {
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47 blobs.emplace_back(b, sub, word);
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48 }
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49 }
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50 }
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51 }
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52 // Pre-classify all the blobs.
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53 if (tessedit_parallelize > 1) {
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54 #ifdef _OPENMP
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55 # pragma omp parallel for num_threads(10)
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56 #endif // _OPENMP
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57 // NOLINTNEXTLINE(modernize-loop-convert)
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58 for (size_t b = 0; b < blobs.size(); ++b) {
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59 *blobs[b].choices =
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60 blobs[b].tesseract->classify_blob(blobs[b].blob, "par", ScrollView::WHITE, nullptr);
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61 }
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62 } else {
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63 // TODO(AMD) parallelize this.
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64 for (auto &blob : blobs) {
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65 *blob.choices = blob.tesseract->classify_blob(blob.blob, "par", ScrollView::WHITE, nullptr);
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66 }
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67 }
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68 }
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69
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70 } // namespace tesseract.