VFramebufferObject Class Reference

#include <VFramebufferObject.h>

List of all members.

Public Member Functions

 VFramebufferObject (int width, int height, unsigned int texturetype)
 ~VFramebufferObject ()
void init ()
void destroy ()
void bind ()
void bindWithoutClear ()
void unbind ()
unsigned int getFboHandle ()
unsigned int getTextureHandle ()
void saveImage (std::string filename)
void renderToFullScreen ()
void renderToLowerRightQuad ()
void renderToLowerLeftQuad ()
int getHeight ()
int getWidth ()

Static Public Member Functions

static void checkFramebufferObjectStatus ()
static VProgram * getRenderToScreenProgram ()
static bool initialiseDevIl ()

Static Public Attributes

static bool devIlInitialised = false

Private Member Functions

const int getNextPowerOfTwo (const int number)

Private Attributes

unsigned int m_FboHandle
unsigned int m_TextureHandle
unsigned int m_RenderBufferHandle
int m_Width
int m_Height
unsigned int m_TextureType

Static Private Attributes

static VProgram m_RenderToScreen
static bool m_ProgramLoaded = false

Detailed Description

class capsulating a simple framebufferobject for simple render - to textures

Definition at line 12 of file VFramebufferObject.h.

Constructor & Destructor Documentation

VFramebufferObject::VFramebufferObject ( int  width,
int  height,
unsigned int  texturetype 
)

constructor with given size

Definition at line 12 of file VFramebufferObject.cpp.

References getNextPowerOfTwo(), m_Height, and m_Width.

VFramebufferObject::~VFramebufferObject (  )  [inline]

default destructor

Definition at line 38 of file VFramebufferObject.h.

References destroy().

Member Function Documentation

void VFramebufferObject::checkFramebufferObjectStatus (  )  [static]

static method for fbo errorchecking

Definition at line 27 of file VFramebufferObject.cpp.

Referenced by bind(), bindWithoutClear(), init(), and unbind().

VProgram * VFramebufferObject::getRenderToScreenProgram (  )  [static]

Definition at line 54 of file VFramebufferObject.cpp.

References m_ProgramLoaded, and m_RenderToScreen.

Referenced by VImage::renderOuterScreen(), and VImage::renderToLowerRightQuad().

bool VFramebufferObject::initialiseDevIl (  )  [static]

method to initialise DevIl

Definition at line 38 of file VFramebufferObject.cpp.

Referenced by VImage::loadImage(), and saveImage().

void VFramebufferObject::init (  ) 

inits the FBO

Definition at line 66 of file VFramebufferObject.cpp.

References bind(), checkFramebufferObjectStatus(), m_FboHandle, m_Height, m_ProgramLoaded, m_RenderBufferHandle, m_RenderToScreen, m_TextureHandle, m_TextureType, m_Width, and unbind().

Referenced by VTransferFunction::interpolateTransferPoints(), QVolRendCanvas::mousePressEvent(), QVolRendCanvas::mouseReleaseEvent(), QVolRendCanvas::paintGL(), QVolRendCanvas::resizeGL(), and QVolRendCanvas::saveBigImage().

void VFramebufferObject::destroy (  ) 

destroys the FBO

Definition at line 132 of file VFramebufferObject.cpp.

References m_FboHandle, m_RenderBufferHandle, and m_TextureHandle.

Referenced by QVolRendCanvas::paintGL(), ~VFramebufferObject(), and vTimeStep::~vTimeStep().

void VFramebufferObject::bind (  ) 

binds the FBO

Definition at line 146 of file VFramebufferObject.cpp.

References checkFramebufferObjectStatus(), m_FboHandle, m_Height, m_RenderBufferHandle, m_TextureHandle, and m_Width.

Referenced by init(), VTransferFunction::interpolateTransferPoints(), QVolRendCanvas::paintGL(), and QVolRendCanvas::saveBigImage().

void VFramebufferObject::bindWithoutClear (  ) 

binds the FBO without clearing

Definition at line 161 of file VFramebufferObject.cpp.

References checkFramebufferObjectStatus(), m_FboHandle, m_Height, m_RenderBufferHandle, m_TextureHandle, and m_Width.

void VFramebufferObject::unbind (  ) 

unbinds the FBO

Definition at line 173 of file VFramebufferObject.cpp.

References checkFramebufferObjectStatus().

Referenced by init(), VTransferFunction::interpolateTransferPoints(), QVolRendCanvas::paintGL(), and QVolRendCanvas::saveBigImage().

unsigned int VFramebufferObject::getFboHandle (  )  [inline]

returns the handle to the Fbo

Returns:
unsigned int containing the handle

Definition at line 73 of file VFramebufferObject.h.

References m_FboHandle.

Referenced by VTransferFunction::interpolateTransferPoints().

unsigned int VFramebufferObject::getTextureHandle (  )  [inline]

returns the handle to the Texture

Definition at line 81 of file VFramebufferObject.h.

References m_TextureHandle.

Referenced by VTransferFunction::getGLHandle(), and vTimeStep::grabFBOData().

void VFramebufferObject::saveImage ( std::string  filename  ) 

saves the Current Image to Disc

Parameters:
filename filename of Image

Definition at line 184 of file VFramebufferObject.cpp.

References devIlInitialised, initialiseDevIl(), m_Height, m_TextureHandle, and m_Width.

Referenced by QVolRendCanvas::paintGL(), and QVolRendCanvas::saveImage().

void VFramebufferObject::renderToFullScreen (  ) 

renders the FBO to Fullscreen

Definition at line 226 of file VFramebufferObject.cpp.

References VProgram::bind(), VProgram::getUniformLocation(), m_RenderToScreen, and VProgram::release().

Referenced by QVolRendCanvas::paintGL().

void VFramebufferObject::renderToLowerRightQuad (  ) 

renders the FBO to a Lower Right Quad

Definition at line 288 of file VFramebufferObject.cpp.

References VProgram::bind(), VProgram::getUniformLocation(), m_RenderToScreen, and VProgram::release().

void VFramebufferObject::renderToLowerLeftQuad (  ) 

renders the FBO to a Lower Left Quad

Definition at line 257 of file VFramebufferObject.cpp.

References VProgram::bind(), VProgram::getUniformLocation(), m_RenderToScreen, and VProgram::release().

Referenced by VTransferFunction::renderTest().

int VFramebufferObject::getHeight (  )  [inline]

returns the Height of the FBO

Definition at line 110 of file VFramebufferObject.h.

References m_Height.

Referenced by VIcon::computeIcon(), and vTimeStep::grabFBOData().

int VFramebufferObject::getWidth (  )  [inline]

returns the Width of the FBO

Definition at line 118 of file VFramebufferObject.h.

References m_Width.

Referenced by VIcon::computeIcon(), and vTimeStep::grabFBOData().

const int VFramebufferObject::getNextPowerOfTwo ( const int  number  )  [inline, private]

returns the next power of two value to a given number

Parameters:
number number to computate power of 2
Returns:
the next power of two

Definition at line 130 of file VFramebufferObject.h.

Referenced by VFramebufferObject().

Member Data Documentation

bool VFramebufferObject::devIlInitialised = false [static]

Bool Containing if DevIl is initialised

Definition at line 21 of file VFramebufferObject.h.

Referenced by VImage::loadImage(), and saveImage().

unsigned int VFramebufferObject::m_FboHandle [private]

Handle to FBO.

Definition at line 138 of file VFramebufferObject.h.

Referenced by bind(), bindWithoutClear(), destroy(), getFboHandle(), and init().

unsigned int VFramebufferObject::m_TextureHandle [private]

Handle to Texture.

Definition at line 141 of file VFramebufferObject.h.

Referenced by bind(), bindWithoutClear(), destroy(), getTextureHandle(), init(), and saveImage().

unsigned int VFramebufferObject::m_RenderBufferHandle [private]

Handle to Renderbuffer.

Definition at line 142 of file VFramebufferObject.h.

Referenced by bind(), bindWithoutClear(), destroy(), and init().

int VFramebufferObject::m_Width [private]

Width of FBO.

Definition at line 143 of file VFramebufferObject.h.

Referenced by bind(), bindWithoutClear(), getWidth(), init(), saveImage(), and VFramebufferObject().

int VFramebufferObject::m_Height [private]

Height of FBO.

Definition at line 144 of file VFramebufferObject.h.

Referenced by bind(), bindWithoutClear(), getHeight(), init(), saveImage(), and VFramebufferObject().

unsigned int VFramebufferObject::m_TextureType [private]

Definition at line 145 of file VFramebufferObject.h.

Referenced by init().

VProgram VFramebufferObject::m_RenderToScreen [static, private]

Program to Render To Screen.

Definition at line 147 of file VFramebufferObject.h.

Referenced by getRenderToScreenProgram(), init(), renderToFullScreen(), renderToLowerLeftQuad(), and renderToLowerRightQuad().

bool VFramebufferObject::m_ProgramLoaded = false [static, private]

If Program is already loaded.

Definition at line 149 of file VFramebufferObject.h.

Referenced by getRenderToScreenProgram(), and init().

The documentation for this class was generated from the following files:
Generated on Mon Jan 21 01:15:17 2008 for FlowVis by  doxygen 1.5.4