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osg::BlendEquation Class Reference

Inheritance diagram for osg::BlendEquation:

osg::StateAttribute osg::Object osg::Referenced List of all members.

Public Types

enum  Equation {
  RGBA_MIN = GL_MIN, RGBA_MAX = GL_MAX, ALPHA_MIN = GL_ALPHA_MIN_SGIX, ALPHA_MAX = GL_ALPHA_MAX_SGIX,
  LOGIC_OP = GL_LOGIC_OP, FUNC_ADD = GL_FUNC_ADD, FUNC_SUBTRACT = GL_FUNC_SUBTRACT, FUNC_REVERSE_SUBTRACT = GL_FUNC_REVERSE_SUBTRACT
}

Public Member Functions

 BlendEquation ()
 BlendEquation (Equation equation)
 BlendEquation (const BlendEquation &trans, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
 META_StateAttribute (osg, BlendEquation, BLENDEQUATION)
virtual int compare (const StateAttribute &sa) const
virtual bool getModeUsage (ModeUsage &usage) const
void setEquation (Equation equation)
Equation getEquation () const
virtual void apply (State &state) const

Static Public Member Functions

static ExtensionsgetExtensions (unsigned int contextID, bool createIfNotInitalized)
static void setExtensions (unsigned int contextID, Extensions *extensions)

Protected Member Functions

virtual ~BlendEquation ()

Protected Attributes

Equation _equation

Classes

class  Extensions

Detailed Description

Encapsulates OpenGL BlendEquation state.


Member Enumeration Documentation

enum osg::BlendEquation::Equation
 

Enumerator:
RGBA_MIN 
RGBA_MAX 
ALPHA_MIN 
ALPHA_MAX 
LOGIC_OP 
FUNC_ADD 
FUNC_SUBTRACT 
FUNC_REVERSE_SUBTRACT 


Constructor & Destructor Documentation

osg::BlendEquation::BlendEquation  ) 
 

osg::BlendEquation::BlendEquation Equation  equation  ) 
 

osg::BlendEquation::BlendEquation const BlendEquation trans,
const CopyOp copyop = CopyOp::SHALLOW_COPY
[inline]
 

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::BlendEquation::~BlendEquation  )  [protected, virtual]
 


Member Function Documentation

virtual void osg::BlendEquation::apply State state  )  const [virtual]
 

apply the OpenGL state attributes. The global state for the current OpenGL context is passed in to allow the StateAttribute to obtain details on the the current context and state.

Implements osg::StateAttribute.

virtual int osg::BlendEquation::compare const StateAttribute sa  )  const [inline, virtual]
 

Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.

Implements osg::StateAttribute.

Equation osg::BlendEquation::getEquation  )  const [inline]
 

static Extensions* osg::BlendEquation::getExtensions unsigned int  contextID,
bool  createIfNotInitalized
[static]
 

Returns the Extensions object for the given context. If createIfNotInitalized is true and the Exentsions object doesn't exist, getExtensions() creates it on the given context. Returns NULL if createIfNotInitalized is false and the Extensions object doesn't exist.

virtual bool osg::BlendEquation::getModeUsage ModeUsage &  usage  )  const [inline, virtual]
 

osg::BlendEquation::META_StateAttribute osg  ,
BlendEquation  ,
BLENDEQUATION 
 

void osg::BlendEquation::setEquation Equation  equation  )  [inline]
 

static void osg::BlendEquation::setExtensions unsigned int  contextID,
Extensions extensions
[static]
 

setExtensions() allows users to override the extensions across graphics contexts. Typically used when you have different extensions supported across graphics pipes, but need to ensure that they all use the same low common denominator extensions.


Member Data Documentation

Equation osg::BlendEquation::_equation [protected]
 


The documentation for this class was generated from the following file:
Generated on Wed Jun 7 04:36:09 2006 for OpenSceneGraph by  doxygen 1.4.4