makVrv::DtPixelBufferObject Class Reference

An object which wraps an OpenGL pixel buffer object and allows for asynchronous downloads of texture data.

Public Member Functions
	DtPixelBufferObject ()
	~DtPixelBufferObject ()
void	downloadFromTexture (unsigned int texture, int w, int h)
void	getData (void *data)
unsigned int	bufferSize () const
virtual void	setupPixelBufferObjects (int numBuffers)

Protected Attributes
std::vector< unsigned int >	myPbos
std::vector< GLsync >	myFences
int	myMutableWriteIndex
int	myMutableReadIndex
unsigned int	myBufferSize

Constructor & Destructor Documentation

makVrv::DtPixelBufferObject::DtPixelBufferObject

(

)

makVrv::DtPixelBufferObject::~DtPixelBufferObject

(

)

Member Function Documentation

void makVrv::DtPixelBufferObject::downloadFromTexture	(	unsigned int	texture,
		int	w,
		int	h
	)

Starts downloading the texture from memory.

void makVrv::DtPixelBufferObject::getData

(

void *

data

)

Get the data by copying it into the available data. Warning! this will block until downloading is complete. Warning! if downloading has not started no data will be available. Warning! data must be atleast bufferSize bytes.

unsigned int makVrv::DtPixelBufferObject::bufferSize

(

)

const

Return the buffered data in bytes.

virtual void makVrv::DtPixelBufferObject::setupPixelBufferObjects ( int  numBuffers )

virtual

Allocate and bind the pixel buffer objects.

Member Data Documentation

std::vector<unsigned int> makVrv::DtPixelBufferObject::myPbos

protected

Pixel Buffer Object.

std::vector<GLsync> makVrv::DtPixelBufferObject::myFences

protected

int makVrv::DtPixelBufferObject::myMutableWriteIndex

mutableprotected

Write buffer index.

int makVrv::DtPixelBufferObject::myMutableReadIndex

mutableprotected

Read buffer index.

unsigned int makVrv::DtPixelBufferObject::myBufferSize

protected

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrvGraphics/DtPixelBufferObject.h