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HxRgbBuffer Class Reference

Helper class for transfering RGB data from an "image data object" to an RgbBuffer and/or an RgbSeq. More...

#include <HxRgbBuffer.h>

List of all members.

Public Methods
	HxRgbBuffer (HxCorba::RgbBuffer_ptr buf, int nPixels)
	Constructor, using RgbBuffer. More...
	HxRgbBuffer (int nPixels)
	Constructor, not using RgbBuffer. More...
virtual	~HxRgbBuffer ()
	Destructor. More...
int *	getBuffer ()
	Get the internal buffer. More...
HxCorba::RgbSeq *	makeRgbSeq ()
	Turn the internal buffer into an RgbSeq. More...

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Detailed Description

Helper class for transfering RGB data from an "image data object" to an RgbBuffer and/or an RgbSeq.

NOTE that HxRgbBuffer and RgbBuffer are different.

The actual transfer mechanism depends on whether we use an RgbBuffer and, if we use an RgbBuffer, on whether (the servant for) the RgbBuffer object resides in this server or another server. This class handles these differences in a (sort of) transparent way.

An HxRgbBuffer operates in one of three modes:

1. There is no RgbBuffer. In this case an internal buffer is allocated that is compatible with RgbSeq.
2. There is an RgbBuffer and its servant resides in this Horus server. In this case, the internal buffer of the servant is used as the internal buffer of this HxRgbBuffer.
3. There is an RgbBuffer but its servant resides in some other Horus server. In this case an internal buffer is allocated that is compatible with RgbSeq and the destructor of this HxRgbBuffer uses an RgbSeq to transfer the data to the servant.

For typical use of this class without an RgbBuffer see HxImageRepTiedSvt::getRgb2d. For typical use of this class with an RgbBuffer see HxImageRepTiedSvt::fillRgb2d

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Constructor & Destructor Documentation

HxRgbBuffer::HxRgbBuffer (  HxCorba::RgbBuffer_ptr    buf, int    nPixels )

Constructor, using RgbBuffer. { _nPixels = nPixels; _rgbBuffer = buf; PortableServer::Servant servant = HxServer::instance()->getServant(buf); if(servant != NULL) { //in-proc pixelBuffer HxRgbBufferServant* pixbuff = dynamic_cast<HxRgbBufferServant*>(servant); _intBuffer = pixbuff->getBuffer(); servant->_remove_ref(); _haveToSend = false; } else { CORBA::Long* data = HxCorba::RgbSeq::allocbuf(_nPixels); _intBuffer = (int*)data; _haveToSend = true; } }

HxRgbBuffer::HxRgbBuffer (  int    nPixels )

Constructor, not using RgbBuffer. { _nPixels = nPixels; CORBA::Long* data = HxCorba::RgbSeq::allocbuf(_nPixels); _intBuffer = (int*)data; _haveToSend = false; }

HxRgbBuffer::~HxRgbBuffer (    )  [virtual]

Destructor. Will check whether data from the internal buffer has to be send to the RgbBuffer. { if(_haveToSend) { HxCorba::RgbSeq_var seq = makeRgbSeq(); _rgbBuffer->setRgb(seq.in()); } //The _intBuffer is deleted by the RgbSeq_var }

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Member Function Documentation

int * HxRgbBuffer::getBuffer (    )

Get the internal buffer. { return _intBuffer; }

HxCorba::RgbSeq * HxRgbBuffer::makeRgbSeq (    )

Turn the internal buffer into an RgbSeq. { CORBA::Long* data = (CORBA::Long*)_intBuffer; return new HxCorba::RgbSeq(_nPixels, _nPixels, data, true); }

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The documentation for this class was generated from the following files:

• HxRgbBuffer.h
• HxRgbBuffer.c

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