4. ZXing compilieren

ZXing compilieren

  • A

    Hallo,
    ich versuche gerade die aktuelle ZXING lib mit meinem C Builder 2007 zu bauen.

    Habe dieses kleine Beispiel gefunden:
    http://wiki.ssrrsummerschool.org/doku.php?id=robocup2012:qrcode-cppexample

    #include <iostream>
#include <stdlib.h>
#include <stdint.h>
#include <fstream>
#include <string>
#include <zxing/qrcode/QRCodeReader.h>
#include <zxing/Exception.h>
#include <zxing/common/GlobalHistogramBinarizer.h>
#include <zxing/DecodeHints.h>
#include "BufferBitmapSource.h"

using namespace std; 
using namespace zxing; 
using namespace zxing::qrcode;
using namespace qrviddec; 

int main(int argc, char ** argv)
{
	try
	{

		// A buffer containing an image. In your code, this would be an image from your camera. In this 
		// example, it's just an array containing the code for "Hello!". 
		uint8_t buffer[] = 
		{ 
			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 
			255,  0 , 255, 255, 255, 255, 255,  0 , 255, 255,  0 , 255,  0 , 255, 255,  0 , 255, 255, 255, 255, 255,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 , 255, 255, 255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 ,  0 , 255, 255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255, 255,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 
			255,  0 , 255, 255, 255, 255, 255,  0 , 255, 255, 255, 255,  0 ,  0 , 255,  0 , 255, 255, 255, 255, 255,  0 , 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 
			255, 255, 255, 255, 255, 255, 255, 255, 255,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255, 255, 255, 255, 255, 255, 255, 255, 
			255,  0 ,  0 , 255,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 , 255,  0 , 255,  0 , 255, 255, 255, 255, 255,  0 , 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255,  0 , 255, 255,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255, 255, 255, 
			255, 255, 255, 255, 255, 255, 255,  0 , 255,  0 ,  0 ,  0 , 255, 255,  0 ,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255, 
			255, 255, 255,  0 ,  0 , 255, 255, 255,  0 ,  0 ,  0 , 255,  0 , 255, 255, 255, 255, 255, 255,  0 , 255, 255, 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255,  0 , 255, 255, 255, 255,  0 , 255, 255,  0 , 255,  0 , 255, 255, 
			255, 255, 255, 255, 255, 255, 255, 255, 255,  0 ,  0 , 255,  0 ,  0 , 255, 255, 255, 255,  0 , 255,  0 ,  0 , 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255, 255,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 , 255, 255, 255, 
			255,  0 , 255, 255, 255, 255, 255,  0 , 255, 255,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 ,  0 ,  0 ,  0 , 255, 255, 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255,  0 , 255, 255,  0 ,  0 , 255,  0 ,  0 , 255,  0 , 255,  0 ,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255, 255, 255, 255, 255, 255, 255, 255, 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 , 255, 255, 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 
			255,  0 , 255, 255, 255, 255, 255,  0 , 255,  0 , 255,  0 , 255, 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 , 255,  0 ,  0 , 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 
			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255
		}; 
		int width = 23; 
		int height = 23; 

		// Convert the buffer to something that the library understands. 
		Ref<LuminanceSource> source (new BufferBitmapSource(width, height, buffer)); 

		// Turn it into a binary image. 
		Ref<Binarizer> binarizer (new GlobalHistogramBinarizer(source)); 
		Ref<BinaryBitmap> image(new BinaryBitmap(binarizer));

		// Tell the decoder to try as hard as possible. 
		DecodeHints hints(DecodeHints::DEFAULT_HINT); 
		hints.setTryHarder(true); 

		// Perform the decoding. 
    QRCodeReader reader;
    Ref<Result> result(reader.decode(image, hints));

		// Output the result. 
    cout << result->getText()->getText() << endl;

  } 
	catch (zxing::Exception& e) 
	{
    cerr << "Error: " << e.what() << endl;
  }
	return 0; 
}

    Dies habe ich nun so abgespeckt dass es verarbeitet wird:

    using namespace std;
using namespace zxing;

....
		// A buffer containing an image. In your code, this would be an image from your camera. In this
		// example, it's just an array containing the code for "Hello!". 
		unsigned char buffer[] =
		{ 
			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,
			255,  0 , 255, 255, 255, 255, 255,  0 , 255, 255,  0 , 255,  0 , 255, 255,  0 , 255, 255, 255, 255, 255,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 , 255, 255, 255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 ,  0 , 255, 255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255, 255,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 
			255,  0 , 255, 255, 255, 255, 255,  0 , 255, 255, 255, 255,  0 ,  0 , 255,  0 , 255, 255, 255, 255, 255,  0 , 255,
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 
			255, 255, 255, 255, 255, 255, 255, 255, 255,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255, 255, 255, 255, 255, 255, 255, 255, 
			255,  0 ,  0 , 255,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 , 255,  0 , 255,  0 , 255, 255, 255, 255, 255,  0 , 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255,  0 , 255, 255,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255, 255, 255, 
			255, 255, 255, 255, 255, 255, 255,  0 , 255,  0 ,  0 ,  0 , 255, 255,  0 ,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255, 
			255, 255, 255,  0 ,  0 , 255, 255, 255,  0 ,  0 ,  0 , 255,  0 , 255, 255, 255, 255, 255, 255,  0 , 255, 255, 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255,  0 , 255, 255, 255, 255,  0 , 255, 255,  0 , 255,  0 , 255, 255, 
			255, 255, 255, 255, 255, 255, 255, 255, 255,  0 ,  0 , 255,  0 ,  0 , 255, 255, 255, 255,  0 , 255,  0 ,  0 , 255, 
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255, 255, 255,  0 , 255,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 , 255, 255, 255, 
			255,  0 , 255, 255, 255, 255, 255,  0 , 255, 255,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 ,  0 ,  0 ,  0 , 255, 255, 255,
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255,  0 , 255, 255,  0 ,  0 , 255,  0 ,  0 , 255,  0 , 255,  0 ,  0 , 255,
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255,  0 , 255,  0 ,  0 ,  0 , 255, 255, 255, 255, 255, 255, 255, 255, 255,
			255,  0 , 255,  0 ,  0 ,  0 , 255,  0 , 255, 255,  0 ,  0 , 255, 255, 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,
			255,  0 , 255, 255, 255, 255, 255,  0 , 255,  0 , 255,  0 , 255, 255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,
			255,  0 ,  0 ,  0 ,  0 ,  0 ,  0 ,  0 , 255,  0 , 255,  0 ,  0 , 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
			255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255
		};
		int width = 23;
		int height = 23;

		// Convert the buffer to something that the library understands.
		Ref<LuminanceSource> source (new BufferBitmapSource(width, height, buffer));

    Leider scheitert es aktuell:
    [BCC32 Warnung] QRCodeReader.h(43): W8022 'QRCodeReader::decode(Ref<BinaryBitmap>,DecodeHints)' verbirgt virtuelle Funktion 'Reader::decode(Ref<BinaryBitmap>)'
    [BCC32 Fehler] Unit6.cpp(73): E2303 Typname erwartet
    [BCC32 Fehler] Unit6.cpp(73): E2293 ) erwartet
    [BCC32 Fehler] Unit6.cpp(73): E2285 Keine Übereinstimmung für 'Ref<LuminanceSource>::Ref(int *)' gefunden
    [BCC32 Warnung] Unit6.cpp(76): W8004 'source' wurde ein Wert zugewiesen, der nie verwendet wird
    [BCC32 Warnung] Unit6.cpp(76): W8004 'height' wurde ein Wert zugewiesen, der nie verwendet wird
    [BCC32 Warnung] Unit6.cpp(76): W8004 'width' wurde ein Wert zugewiesen, der nie verwendet wird
    [BCC32 Warnung] Unit6.cpp(76): W8004 'buffer' wurde ein Wert zugewiesen, der nie verwendet wird

    Weiß einer Rat?

    0
  • M

    Wenn Du uns die Zeilen zeigst in denen die Fehler sind, vielleicht 😉

    0
  • A

    Sorry für die späte Antwort, der Teil läuft nun aber auch. Lösung:

    Ref<LuminanceSource> source (new BufferBitmapSource(width, height, buffer));
Ref<Binarizer> binarizer (new GlobalHistogramBinarizer(source));
Ref<BinaryBitmap> image(new BinaryBitmap(binarizer));
DecodeHints hints(DecodeHints::DEFAULT_HINT );
hints.setTryHarder(true);
QRCodeReader reader;
Ref<Result> result(reader.decode(image, hints));

    Nun steh ich leider vor dem nächsten Problem:
    [BCC32 Fehler] Counted.h(135): E2315 'release' ist kein Element von 'oned::UPCEANReader', weil der Typ nicht definiert ist

    Das ganze in:

    // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
#ifndef __COUNTED_H__
#define __COUNTED_H__

/*
 *  Copyright 2010 ZXing authors All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <iostream>

namespace zxing {

/* base class for reference-counted objects */
class Counted {
private:
  unsigned int count_;
public:
  Counted() :
      count_(0) {
  }
  virtual ~Counted() {
  }
  Counted *retain() {
    count_++;
    return this;
  }
  void release() {
    count_--;
    if (count_ == 0) {
      count_ = 0xDEADF001;
      delete this;
    }
  }

  /* return the current count for denugging purposes or similar */
  int count() const {
    return count_;
  }
};

/* counting reference to reference-counted objects */
template<typename T> class Ref {
private:
public:
  T *object_;
  explicit Ref(T *o = 0) :
      object_(0) {
    reset(o);
  }
  Ref(const Ref &other) :
      object_(0) {
    reset(other.object_);
  }

  template<class Y>
  Ref(const Ref<Y> &other) :
      object_(0) {
    reset(other.object_);
  }

  ~Ref() {
    if (object_) {
      object_->release();
    }
  }

  void reset(T *o) {
    if (o) {
      o->retain();
    }
    if (object_ != 0) {
      object_->release();
    }
    object_ = o;
  }
  Ref& operator=(const Ref &other) {
    reset(other.object_);
    return *this;
  }
  template<class Y>
  Ref& operator=(const Ref<Y> &other) {
    reset(other.object_);
    return *this;
  }
  Ref& operator=(T* o) {
    reset(o);
    return *this;
  }
  template<class Y>
  Ref& operator=(Y* o) {
    reset(o);
    return *this;
  }

  T& operator*() {
    return *object_;
  }
  T* operator->() const {
    return object_;
  }
  operator T*() const {
    return object_;
  }

  bool operator==(const T* that) {
    return object_ == that;
  }
  bool operator==(const Ref &other) const {
    return object_ == other.object_ || *object_ == *(other.object_);
  }
  template<class Y>
  bool operator==(const Ref<Y> &other) const {
    return object_ == other.object_ || *object_ == *(other.object_);
  }

  bool operator!=(const T* that) {
    return !(*this == that);
  }

  bool empty() const {
    return object_ == 0;
  }
};

}

#endif // __COUNTED_H__

    Die Hilfe zu diesem Fehler sagt mir mal sowas von Garnichts....
    Weiß nun jemand Rat?

    0
  • B

    Hallo,

    Der Fehler stammt nicht aus der gezeigten Headerdatei. Der ensteht wahrscheinlich wenn du versuchst ein Objekt vom Typ Ref<UPCEANReader> zu instanziieren. Der Typ ist da scheinbar nicht bekannt. Evtl. fehlt ein Include UPCEANReader.h

    0
  • A

    Genau ein include hat gefehlt. Vielen Dank.

    0
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