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Blob.cpp
// This may look like C code, but it is really -*- C++ -*-
//
// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002, 2004
//
// Copyright @ 2013 ImageMagick Studio LLC, a non-profit organization
// dedicated to making software imaging solutions freely available.
//
// Implementation of Blob
//
#define MAGICKCORE_IMPLEMENTATION 1
#define MAGICK_PLUSPLUS_IMPLEMENTATION 1
#include "Magick++/Include.h"
#include "Magick++/Blob.h"
#include "Magick++/BlobRef.h"
#include "Magick++/Exception.h"
#include <string.h>
Magick::Blob::Blob(void)
: _blobRef(new Magick::BlobRef(0,0))
{
}
Magick::Blob::Blob(const void* data_,const size_t length_)
: _blobRef(new Magick::BlobRef(data_, length_))
{
}
Magick::Blob::Blob(const Magick::Blob& blob_)
: _blobRef(blob_._blobRef)
{
// Increase reference count
_blobRef->increase();
}
Magick::Blob::~Blob()
{
try
{
if (_blobRef->decrease() == 0)
delete _blobRef;
}
catch(Magick::Exception&)
{
}
_blobRef=(Magick::BlobRef *) NULL;
}
Magick::Blob& Magick::Blob::operator=(const Magick::Blob& blob_)
{
if (this != &blob_)
{
blob_._blobRef->increase();
if (_blobRef->decrease() == 0)
delete _blobRef;
_blobRef=blob_._blobRef;
}
return(*this);
}
void Magick::Blob::base64(const std::string base64_)
{
size_t
length;
unsigned char
*decoded;
decoded=Base64Decode(base64_.c_str(),&length);
if(decoded)
updateNoCopy(static_cast<void*>(decoded),length,
Magick::Blob::MallocAllocator);
}
std::string Magick::Blob::base64(void) const
{
size_t
encoded_length;
char
*encoded;
std::string
result;
encoded_length=0;
encoded=Base64Encode(static_cast<const unsigned char*>(data()),length(),
&encoded_length);
if(encoded)
{
result=std::string(encoded,encoded_length);
encoded=(char *) RelinquishMagickMemory(encoded);
return result;
}
return(std::string());
}
const void* Magick::Blob::data(void) const
{
return(_blobRef->data);
}
size_t Magick::Blob::length(void) const
{
return(_blobRef->length);
}
void Magick::Blob::update(const void* data_,size_t length_)
{
if (_blobRef->decrease() == 0)
delete _blobRef;
_blobRef=new Magick::BlobRef(data_,length_);
}
void Magick::Blob::updateNoCopy(void* data_,size_t length_,
Magick::Blob::Allocator allocator_)
{
if (_blobRef->decrease() == 0)
delete _blobRef;
_blobRef=new Magick::BlobRef((const void*) NULL,0);
_blobRef->data=data_;
_blobRef->length=length_;
_blobRef->allocator=allocator_;
}
Magick::Blob
Definition Blob.h:23