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Testing threaded operations. Experiencing memory leak and crashes.

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This commit is contained in:
favoritas37 2013-07-31 20:47:01 +03:00
parent 4eb0ea479c
commit 659215a660
9 changed files with 49 additions and 34 deletions
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binary/Harmattan-Maemo5/libQZXing.so.1
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binary/Harmattan-Maemo5/libQZXing.so.1.2
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binary/Harmattan-Maemo5/libQZXing.so.1.2.0
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12
source/CameraImageWrapper.cpp
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@ -2,6 +2,7 @@
#include <QColor>
#include <QApplication>
#include <QDesktopWidget>
#include <QDebug>
CameraImageWrapper::CameraImageWrapper() : LuminanceSource(0,0), isSmoothTransformationEnabled(false)
{
@ -63,6 +64,9 @@ bool CameraImageWrapper::setImage(QString fileName, int maxWidth, int maxHeight)
scale(maxWidth, maxHeight);
width = image.width();
height = image.height();
return true;
}
@ -75,6 +79,9 @@ bool CameraImageWrapper::setImage(QImage newImage, int maxWidth, int maxHeight)
scale(maxWidth, maxHeight);
width = image.width();
height = image.height();
return true;
}
@ -143,10 +150,13 @@ void CameraImageWrapper::setSmoothTransformation(bool enable)
void CameraImageWrapper::scale(int maxWidth, int maxHeight)
{
if((maxWidth != 1 || maxHeight != 1) && (image.width() > maxWidth || image.height() > maxHeight))
if((maxWidth != -1 || maxHeight != -1) && (image.width() > maxWidth || image.height() > maxHeight))
{
qDebug() << "Scaling image to: width " << maxWidth << ", " << ", maxHeight: " << maxHeight;
image = image.scaled(
maxWidth != -1 ? maxWidth : image.width(),
maxHeight != -1 ? maxHeight : image.height(),
Qt::KeepAspectRatio,
isSmoothTransformationEnabled ? Qt::SmoothTransformation : Qt::FastTransformation);
}
}

2
source/QZXing.pri
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@ -9,8 +9,6 @@ DEFINES += QZXING_LIBRARY \
INCLUDEPATH += $$PWD \
$$PWD/zxing
HEADERS += $$PWD/QZXing_global.h \
HEADERS += $$PWD/QZXing_global.h \
$$PWD/CameraImageWrapper.h \
$$PWD/imagehandler.h \

14
source/qzxing.cpp
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@ -115,6 +115,10 @@ QString QZXing::decodeImage(QImage image, int maxWidth, int maxHeight, bool smoo
connect(worker, SIGNAL(decodingFinished(bool)), this, SIGNAL(decodingFinished(bool)));
connect(worker, SIGNAL(decodingStarted()), this, SIGNAL(decodingStarted()));
connect(worker, SIGNAL(tagFound(QString)), this, SIGNAL(tagFound(QString)));
connect(worker, SIGNAL(quitThread()), thread, SLOT(quit()));
//connect(thread, SIGNAL(finished()), worker, SLOT(deleteLater()));
//connect(thread, SIGNAL(finished()), SLOT(deleteLater()));
worker->setData(&processingTime, image, maxWidth, maxHeight, smoothTransformation, decoder, enabledDecoders);
worker->moveToThread(thread);
@ -151,12 +155,12 @@ QString QZXing::decodeImage(QImage image, int maxWidth, int maxHeight, bool smoo
ciw = new CameraImageWrapper(image);
Ref<LuminanceSource> imageRef(ciw);
GlobalHistogramBinarizer* binz = new GlobalHistogramBinarizer(imageRef);
GlobalHistogramBinarizer binz(imageRef);
Ref<Binarizer> bz (binz);
BinaryBitmap* bb = new BinaryBitmap(bz);
Ref<Binarizer> bz (&binz);
BinaryBitmap bb(bz);
Ref<BinaryBitmap> ref(bb);
Ref<BinaryBitmap> ref(&bb);
res = ((MultiFormatReader*)decoder)->decode(ref, DecodeHints((int)enabledDecoders));
@ -166,8 +170,6 @@ QString QZXing::decodeImage(QImage image, int maxWidth, int maxHeight, bool smoo
emit decodingFinished(true);
delete ciw;
delete binz;
delete bb;
return string;
}

47
source/qzxingworker_p.cpp
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@ -10,15 +10,18 @@
#include <QTime>
#include <qzxing.h>
#include <QDebug>
using namespace zxing;
QZXingWorker_p::QZXingWorker_p(QObject *parent) :
QObject(parent)
QObject(parent), maxWidth(-1), maxHeight(-1), smoothTransformation(false)
{
}
QString QZXingWorker_p::decode()
{
qDebug() << "Entered threaded decoding";
QTime t;
t.start();
Ref<Result> res;
@ -27,47 +30,47 @@ QString QZXingWorker_p::decode()
if(image.isNull())
{
emit decodingFinished(false);
*processingTime = -1;
//*processingTime = -1;
qDebug() << "Exited threaded decoding, error";
emit quitThread();
return "";
}
try{
CameraImageWrapper* ciw;
CameraImageWrapper ciw;
if(maxWidth > 0 || maxHeight > 0)
{
ciw = new CameraImageWrapper();
ciw->setSmoothTransformation(smoothTransformation);
ciw->setImage(image, maxWidth, maxHeight);
}
else
ciw = new CameraImageWrapper(image);
ciw.setSmoothTransformation(smoothTransformation);
ciw.setImage(image, maxWidth, maxHeight);
Ref<LuminanceSource> imageRef(ciw);
GlobalHistogramBinarizer* binz = new GlobalHistogramBinarizer(imageRef);
Ref<LuminanceSource> imageRef(&ciw);
GlobalHistogramBinarizer binz(imageRef);
Ref<Binarizer> bz (binz);
BinaryBitmap* bb = new BinaryBitmap(bz);
Ref<Binarizer> bz (&binz);
BinaryBitmap bb(bz);
Ref<BinaryBitmap> ref(bb);
Ref<BinaryBitmap> ref(&bb);
res = ((MultiFormatReader*)decoder)->decode(ref, DecodeHints((int)enabledDecoders));
QString string = QString(res->getText()->getText().c_str());
*processingTime = t.elapsed();
// *processingTime = t.elapsed();
emit tagFound(string);
emit decodingFinished(true);
delete ciw;
delete binz;
delete bb;
qDebug() << "Exited threaded decoding";
emit quitThread();
return string;
}
catch(zxing::Exception& e)
{
emit decodingFinished(false);
*processingTime = -1;
// *processingTime = -1;
qDebug() << "Exited threaded decoding, error";
emit quitThread();
return "";
}
}

2
source/qzxingworker_p.h
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@ -14,6 +14,8 @@ signals:
void decodingStarted();
void decodingFinished(bool succeeded);
void tagFound(QString tag);
void quitThread();
public slots:
void setData(int* processingTime, QImage image, int maxWidth, int maxHeight, bool smoothTransformation,

6
source/zxing/zxing/LuminanceSource.h
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@ -27,9 +27,9 @@
namespace zxing {
class LuminanceSource : public Counted {
private:
const int width;
const int height;
protected:
int width;
int height;
public:
LuminanceSource(int width, int height);