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C++ port Binarizer and BinaryBitmap weren't caching rows correctly.

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1473 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
flyashi 2010-07-09 15:15:01 +00:00
parent b1032ceba4
commit ecbf50da87
4 changed files with 9 additions and 4 deletions
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6
cpp/core/src/zxing/Binarizer.cpp
View file

@ -23,15 +23,17 @@
namespace zxing {
Binarizer::Binarizer(Ref<LuminanceSource> source) : source_(source), array_(NULL), matrix_(NULL) {
Binarizer::Binarizer(Ref<LuminanceSource> source) : source_(source), array_(NULL), matrix_(NULL), cached_y_(-1) {
}
Binarizer::~Binarizer() {
}
Ref<BitArray> Binarizer::getBlackRow(int y, Ref<BitArray> row){
if (array_ == NULL)
if (array_ == NULL && cached_y_ != y) {
array_ = estimateBlackRow(y, row);
cached_y_ = y;
}
return array_;
}

1
cpp/core/src/zxing/Binarizer.h
View file

@ -34,6 +34,7 @@ class Binarizer : public Counted {
Ref<LuminanceSource> source_;
Ref<BitArray> array_;
Ref<BitMatrix> matrix_;
int cached_y_;
public:
Binarizer(Ref<LuminanceSource> source);

5
cpp/core/src/zxing/BinaryBitmap.cpp
View file

@ -23,7 +23,7 @@
namespace zxing {
BinaryBitmap::BinaryBitmap(Ref<Binarizer> binarizer) : bits_(NULL), array_bits_(NULL), binarizer_(binarizer) {
BinaryBitmap::BinaryBitmap(Ref<Binarizer> binarizer) : bits_(NULL), array_bits_(NULL), binarizer_(binarizer), cached_y_(-1) {
}
@ -31,8 +31,9 @@ namespace zxing {
}
Ref<BitArray> BinaryBitmap::getBlackRow(int y, Ref<BitArray> row) {
if (array_bits_ == NULL) {
if (array_bits_ == NULL && cached_y_ != y) {
array_bits_ = binarizer_->getBlackRow(y, row);
cached_y_ = y;
}
return array_bits_;
}

1
cpp/core/src/zxing/BinaryBitmap.h
View file

@ -33,6 +33,7 @@ namespace zxing {
Ref<BitMatrix> bits_;
Ref<BitArray> array_bits_;
Ref<Binarizer> binarizer_;
int cached_y_;
public:
BinaryBitmap(Ref<Binarizer> binarizer);