class SG_EXPORT osg::State

State class for managing a state stack.

Inheritance:

Public Methods

State()

virtual ~State()

void pushStateSet(const StateSet* dstate)

push stateset onto state stack

void popStateSet()

pop drawstate off state stack

void reset()

reset the state object to an empty stack

inline const bool apply_mode(const StateAttribute::GLMode mode, const bool enabled)

apply an OpenGL mode if required.

inline const bool apply_attribute(const StateAttribute* attribute)

apply an attribute if required.

void apply(const StateSet* dstate)

apply stateset

void apply()

apply the state

void have_applied(const StateAttribute::GLMode mode, const StateAttribute::GLModeValue value)

mode has been set externally, update state to reflect this setting

void have_applied(const StateAttribute* attribute)

attribute has been applied externally, update state to reflect this setting

inline void setContextID(unsigned int contextID)

Set the current OpenGL context uniqueID.

inline const unsigned int getContextID() const

Get the current OpenGL context unique ID

inline void setFrameNumber(unsigned int fn)

Set the frame number

inline unsigned int getFrameNumber() const

Get the frame number

inline void incrementFrameNumber()

Increment the frame number.

void setFineGrainedErrorDetection(const bool flag)

Set the hint to OpenGL routines to do fine grained OpenGL error checking

const bool getFineGrainedErrorDetection() const

Get the hint to OpenGL routines to do fine grained OpenGL error checking

Inherited from Referenced:

Public Methods

inline Referenced& operator = (Referenced&)

inline void ref() const

inline void unref() const

inline const int referenceCount() const

Protected Fields

mutable int _refCount

Documentation

State class for managing a state stack. Lazy state updating is used to minize state changes.

State()

virtual ~State()

void pushStateSet(const StateSet* dstate)

push stateset onto state stack

void popStateSet()

pop drawstate off state stack

void reset()

reset the state object to an empty stack

inline const bool apply_mode(const StateAttribute::GLMode mode, const bool enabled)

apply an OpenGL mode if required.

inline const bool apply_attribute(const StateAttribute* attribute)

apply an attribute if required.

void apply(const StateSet* dstate)

apply stateset

void apply()

apply the state

void have_applied(const StateAttribute::GLMode mode, const StateAttribute::GLModeValue value)

mode has been set externally, update state to reflect this setting

void have_applied(const StateAttribute* attribute)

attribute has been applied externally, update state to reflect this setting

inline void setContextID(unsigned int contextID)

Set the current OpenGL context uniqueID. Note, it is the application developers responsiblity to set up unique ID for each OpenGL context. This value is then used by osg::StateAttribure's and osg::Drawable's to help manage OpenGL display list and texture binds appropriate for each context.

inline const unsigned int getContextID() const

Get the current OpenGL context unique ID

inline void setFrameNumber(unsigned int fn)

Set the frame number

inline unsigned int getFrameNumber() const

Get the frame number

inline void incrementFrameNumber()

Increment the frame number. Done once per frame.

void setFineGrainedErrorDetection(const bool flag)

Set the hint to OpenGL routines to do fine grained OpenGL error checking

const bool getFineGrainedErrorDetection() const

Get the hint to OpenGL routines to do fine grained OpenGL error checking

ModeStack()

bool changed

bool last_applied_value

ValueVec valueVec

AttributeStack()

bool changed

const StateAttribute* last_applied_attribute

AttributeVec attributeVec

This class has no child classes.

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