osg::BlendEquation Class Reference

Encapsulates OpenGL BlendEquation state. More...

Inheritance diagram for osg::BlendEquation:

[legend]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)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, BlendEquation, BLENDEQUATION)
virtual int	compare (const StateAttribute &sa) const
	Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.
virtual bool	getModeUsage (ModeUsage &usage) const
	Return the modes associated with this StateAttribute.
void	setEquation (Equation equation)
Equation	getEquation () const
virtual void	apply (State &state) const
	apply the OpenGL state attributes.
Static Public Member Functions
Extensions *	getExtensions (unsigned int contextID, bool createIfNotInitalized)
	Returns the Extensions object for the given context.
void	setExtensions (unsigned int contextID, Extensions *extensions)
	setExtensions() allows users to override the extensions across graphics contexts.
Protected Member Functions
virtual	~BlendEquation ()
Protected Attributes
Equation	_equation

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Detailed Description

Encapsulates OpenGL BlendEquation state.

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Member Enumeration Documentation

enum osg::BlendEquation::Equation

Enumeration values: RGBA_MIN  RGBA_MAX  ALPHA_MIN  ALPHA_MAX  LOGIC_OP  FUNC_ADD  FUNC_SUBTRACT  FUNC_REVERSE_SUBTRACT

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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]

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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]

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]

Return the modes associated with this StateAttribute. Reimplemented from osg::StateAttribute.

osg::BlendEquation::META_StateAttribute (  osg  , BlendEquation  , BLENDEQUATION  )

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

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.

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Member Data Documentation

Equation osg::BlendEquation::_equation [protected]

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

• BlendEquation

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