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Merge pull request #2510 from stweil/tessresultcallback

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Simplify indirect call of LMPainPoints::GeneratePainPoint
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zdenop 2019-06-22 06:55:27 +02:00 committed by GitHub
commit dff33d6d93
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6 changed files with 21 additions and 76 deletions
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2
src/ccstruct/Makefile.am
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@ -1,6 +1,8 @@
AM_CPPFLAGS += \
-I$(top_srcdir)/src/ccutil \
-I$(top_srcdir)/src/cutil \
-I$(top_srcdir)/src/dict \
-I$(top_srcdir)/src/wordrec \
-I$(top_srcdir)/src/viewer \
-I$(top_srcdir)/src/opencl
AM_CPPFLAGS += $(OPENCL_CPPFLAGS)

21
src/ccstruct/blamer.cpp
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@ -3,7 +3,6 @@
// Description: Module allowing precise error causes to be allocated.
// Author: Rike Antonova
// Refactored: Ray Smith
// Created: Mon Feb 04 14:37:01 PST 2013
//
// (C) Copyright 2013, Google Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
@ -23,10 +22,10 @@
#include <cstdlib> // for abs
#include "blobs.h" // for TPOINT, TWERD, TBLOB
#include "errcode.h" // for ASSERT_HOST
#include "lm_pain_points.h" // for LMPainPoints
#include "matrix.h" // for MATRIX
#include "normalis.h" // for DENORM
#include "pageres.h" // for WERD_RES
#include "tesscallback.h" // for TessResultCallback2
#include "unicharset.h" // for UNICHARSET
// Names for each value of IncorrectResultReason enum. Keep in sync.
@ -471,14 +470,12 @@ bool BlamerBundle::GuidedSegsearchNeeded(const WERD_CHOICE *best_choice) const {
}
// Setup ready to guide the segmentation search to the correct segmentation.
// The callback pp_cb is used to avoid a cyclic dependency.
// It calls into LMPainPoints::GenerateForBlamer by pre-binding the
// WERD_RES, and the LMPainPoints itself.
// pp_cb must be a permanent callback, and should be deleted by the caller.
void BlamerBundle::InitForSegSearch(const WERD_CHOICE *best_choice,
void BlamerBundle::InitForSegSearch(const WERD_CHOICE* best_choice,
MATRIX* ratings, UNICHAR_ID wildcard_id,
bool debug, STRING *debug_str,
TessResultCallback2<bool, int, int>* cb) {
bool debug, STRING* debug_str,
tesseract::LMPainPoints* pain_points,
double max_char_wh_ratio,
WERD_RES* word_res) {
segsearch_is_looking_for_blame_ = true;
if (debug) {
tprintf("segsearch starting to look for blame\n");
@ -493,8 +490,10 @@ void BlamerBundle::InitForSegSearch(const WERD_CHOICE *best_choice,
if (!ratings->Classified(correct_segmentation_cols_[idx],
correct_segmentation_rows_[idx],
wildcard_id) &&
!cb->Run(correct_segmentation_cols_[idx],
correct_segmentation_rows_[idx])) {
!pain_points->GeneratePainPoint(correct_segmentation_cols_[idx],
correct_segmentation_rows_[idx],
tesseract::LM_PPTYPE_BLAMER, 0.0,
false, max_char_wh_ratio, word_res)) {
segsearch_is_looking_for_blame_ = false;
*debug_str += "\nFailed to insert pain point\n";
SetBlame(IRR_SEGSEARCH_HEUR, *debug_str, best_choice, debug);

16
src/ccstruct/blamer.h
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@ -3,7 +3,6 @@
// Description: Module allowing precise error causes to be allocated.
// Author: Rike Antonova
// Refactored: Ray Smith
// Created: Mon Feb 04 14:37:01 PST 2013
//
// (C) Copyright 2013, Google Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
@ -40,7 +39,9 @@ class WERD_RES;
struct MATRIX_COORD;
struct TWERD;
template <class R, class A1, class A2> class TessResultCallback2;
namespace tesseract {
class LMPainPoints;
}
static const int16_t kBlamerBoxTolerance = 5;
@ -266,14 +267,11 @@ struct BlamerBundle {
// Returns true if a guided segmentation search is needed.
bool GuidedSegsearchNeeded(const WERD_CHOICE *best_choice) const;
// Setup ready to guide the segmentation search to the correct segmentation.
// The callback pp_cb is used to avoid a cyclic dependency.
// It calls into LMPainPoints::GenerateForBlamer by pre-binding the
// WERD_RES, and the LMPainPoints itself.
// pp_cb must be a permanent callback, and should be deleted by the caller.
void InitForSegSearch(const WERD_CHOICE *best_choice,
void InitForSegSearch(const WERD_CHOICE* best_choice,
MATRIX* ratings, UNICHAR_ID wildcard_id,
bool debug, STRING *debug_str,
TessResultCallback2<bool, int, int>* pp_cb);
bool debug, STRING* debug_str,
tesseract::LMPainPoints* pain_points,
double max_char_wh_ratio, WERD_RES* word_res);
// Returns true if the guided segsearch is in progress.
bool GuidedSegsearchStillGoing() const;
// The segmentation search has ended. Sets the blame appropriately.

42
src/ccutil/tesscallback.h
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@ -793,48 +793,6 @@ NewPermanentTessCallback(R (*function)(A1, A2)) {
return new _TessFunctionResultCallback_0_2<false, R, A1, A2>(function);
}
template <bool del, class R, class T, class P1, class P2, class A1, class A2>
class _TessMemberResultCallback_2_2 : public TessResultCallback2<R, A1, A2> {
public:
typedef TessResultCallback2<R, A1, A2> base;
using MemberSignature = R (T::*)(P1, P2, A1, A2);
private:
T* object_;
MemberSignature member_;
typename remove_reference<P1>::type p1_;
typename remove_reference<P2>::type p2_;
public:
inline _TessMemberResultCallback_2_2(T* object, MemberSignature member, P1 p1,
P2 p2)
: object_(object), member_(member), p1_(p1), p2_(p2) {}
R Run(A1 a1, A2 a2) override {
if (!del) {
R result = (object_->*member_)(p1_, p2_, a1, a2);
return result;
}
R result = (object_->*member_)(p1_, p2_, a1, a2);
// zero out the pointer to ensure segfault if used again
member_ = nullptr;
delete this;
return result;
}
};
#ifndef SWIG
template <class T1, class T2, class R, class P1, class P2, class A1, class A2>
inline
typename _TessMemberResultCallback_2_2<false, R, T1, P1, P2, A1, A2>::base*
NewPermanentTessCallback(T1* obj, R (T2::*member)(P1, P2, A1, A2),
typename Identity<P1>::type p1,
typename Identity<P2>::type p2) {
return new _TessMemberResultCallback_2_2<false, R, T1, P1, P2, A1, A2>(
obj, member, p1, p2);
}
#endif
template <bool del, class R, class T, class A1, class A2, class A3>
class _ConstTessMemberResultCallback_0_3
: public TessResultCallback3<R, A1, A2, A3> {

8
src/wordrec/lm_pain_points.h
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@ -5,7 +5,6 @@
// to generate "pain points" - the locations in the ratings
// matrix which should be classified next.
// Author: Rika Antonova
// Created: Mon Jun 20 11:26:43 PST 2012
//
// (C) Copyright 2012, Google Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
@ -99,13 +98,6 @@ class LMPainPoints {
void GenerateFromAmbigs(const DANGERR &fixpt, ViterbiStateEntry *vse,
WERD_RES *word_res);
// Generate a pain point for the blamer.
bool GenerateForBlamer(double max_char_wh_ratio, WERD_RES *word_res,
int col, int row) {
return GeneratePainPoint(col, row, LM_PPTYPE_BLAMER, 0.0, false,
max_char_wh_ratio, word_res);
}
// Adds a pain point to classify chunks_record->ratings(col, row).
// Returns true if a new pain point was added to an appropriate heap.
// Pain point priority is set to special_priority for pain points of

8
src/wordrec/segsearch.cpp
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@ -27,7 +27,6 @@
#include "params.h" // for BoolParam, IntParam, DoubleParam
#include "ratngs.h" // for BLOB_CHOICE_LIST, BLOB_CHOICE_IT
#include "strngs.h" // for STRING
#include "tesscallback.h" // for TessResultCallback2
#include "tprintf.h" // for tprintf
#include "wordrec.h" // for Wordrec, SegSearchPending (ptr only)
@ -330,13 +329,10 @@ void Wordrec::InitBlamerForSegSearch(WERD_RES *word_res,
BlamerBundle *blamer_bundle,
STRING *blamer_debug) {
pain_points->Clear(); // Clear pain points heap.
TessResultCallback2<bool, int, int>* pp_cb = NewPermanentTessCallback(
pain_points, &LMPainPoints::GenerateForBlamer,
static_cast<double>(segsearch_max_char_wh_ratio), word_res);
blamer_bundle->InitForSegSearch(word_res->best_choice, word_res->ratings,
getDict().WildcardID(), wordrec_debug_blamer,
blamer_debug, pp_cb);
delete pp_cb;
blamer_debug, pain_points,
segsearch_max_char_wh_ratio, word_res);
}
} // namespace tesseract