This is a special class object that holds all the information returned by a particular GSG to indicate the vertex data array's internal context identifier. More...

#include "vertexBufferContext.h"

Inheritance diagram for VertexBufferContext:

Public Member Functions
	VertexBufferContext (PreparedGraphicsObjects pgo, GeomVertexArrayData data)

bool	changed_size (const GeomVertexArrayDataHandle *reader) const
	Returns true if the data has changed size since the last time mark_loaded() was called. More...

bool	changed_usage_hint (const GeomVertexArrayDataHandle *reader) const
	Returns true if the data has changed its usage hint since the last time mark_loaded() was called. More...

virtual TypeHandle	force_init_type ()

GeomVertexArrayData *	get_data () const
	Returns the pointer to the client-side array data object. More...

virtual TypeHandle	get_type () const

void	mark_loaded (const GeomVertexArrayDataHandle *reader)
	Should be called after the VertexBufferContext has been loaded into graphics memory, this updates the internal flags for changed_size() and modified(). More...

void	mark_unloaded ()
	Should be called after the buffer has been forced out of graphics memory. More...

virtual void	output (std::ostream &out) const

void	update_data_size_bytes (size_t new_data_size_bytes)
	Should be called (usually by a derived class) when the on-card size of this object has changed. More...

bool	was_modified (const GeomVertexArrayDataHandle *reader) const
	Returns true if the data has been modified since the last time mark_loaded() was called. More...

virtual void	write (std::ostream &out, int indent_level) const

Public Member Functions inherited from BufferContext
	BufferContext (BufferResidencyTracker residency, TypedWritableReferenceCount object)

bool	get_active () const

size_t	get_data_size_bytes () const

UpdateSeq	get_modified () const

BufferContext *	get_next () const
	This can be used along with BufferContextChain::get_first() to walk through the list of objects stored on a tracker. More...

TypedWritableReferenceCount *	get_object () const

bool	get_resident () const

void	set_active (bool flag)
	Changes the active flag associated with this object. More...

void	set_resident (bool flag)
	Changes the resident flag associated with this object. More...

void	update_data_size_bytes (size_t new_data_size_bytes)
	Should be called (usually by a derived class) when the on-card size of this object has changed. More...

void	update_modified (UpdateSeq new_modified)
	Should be called (usually by a derived class) when the modified counter for this object has changed. More...

Public Member Functions inherited from TypedObject
	TypedObject (const TypedObject &copy)=default

TypedObject *	as_typed_object ()
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

const TypedObject *	as_typed_object () const
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

int	get_best_parent_from_Set (const std::set< int > &) const

int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...

bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly. More...

bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type. More...

TypedObject &	operator= (const TypedObject &copy)=default

Public Member Functions inherited from AdaptiveLruPage
	AdaptiveLruPage (size_t lru_size)

	AdaptiveLruPage (const AdaptiveLruPage &copy)

void	dequeue_lru ()
	Removes the page from its AdaptiveLru. More...

void	enqueue_lru (AdaptiveLru *lru)
	Adds the page to the LRU for the first time, or marks it recently-accessed if it has already been added. More...

virtual void	evict_lru ()
	Evicts the page from the LRU. More...

AdaptiveLru *	get_lru () const
	Returns the LRU that manages this page, or NULL if it is not currently managed by any LRU. More...

size_t	get_lru_size () const
	Returns the size of this page as reported to the LRU, presumably in bytes. More...

unsigned int	get_num_frames () const
	Returns the number of frames since the page was first added to its LRU. More...

unsigned int	get_num_inactive_frames () const
	Returns the number of frames since the page was last accessed on its LRU. More...

void	mark_used_lru () const
	To be called when the page is used; this will move it to the tail of the AdaptiveLru queue it is already on. More...

void	mark_used_lru (AdaptiveLru *lru)
	To be called when the page is used; this will move it to the tail of the specified AdaptiveLru queue. More...

void	operator= (const AdaptiveLruPage &copy)

void	set_lru_size (size_t lru_size)
	Specifies the size of this page, presumably in bytes, although any unit is possible. More...

Static Public Member Functions
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from BufferContext
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from SavedContext
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedObject
static TypeHandle	get_class_type ()

static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96. More...

Friends
class	PreparedGraphicsObjects

Additional Inherited Members
Public Attributes inherited from BufferContext
	get_active
	Returns the active flag associated with this object. More...

	get_data_size_bytes
	Returns the number of bytes previously reported for the data object. More...

	get_modified
	Returns the UpdateSeq that was recorded the last time mark_loaded() was called. More...

	get_object
	Returns the associated object. More...

	get_resident
	Returns the resident flag associated with this object. More...

Public Attributes inherited from TypedObject
	get_type

Detailed Description

This is a special class object that holds all the information returned by a particular GSG to indicate the vertex data array's internal context identifier.

This allows the GSG to cache the vertex data array in whatever way makes sense. For instance, DirectX can allocate a vertex buffer for the array. OpenGL can create a buffer object.

Definition at line 33 of file vertexBufferContext.h.

Member Function Documentation

◆ changed_size()

bool VertexBufferContext::changed_size ( const GeomVertexArrayDataHandle * reader ) const

inline

Returns true if the data has changed size since the last time mark_loaded() was called.

Definition at line 37 of file vertexBufferContext.I.

◆ changed_usage_hint()

bool VertexBufferContext::changed_usage_hint ( const GeomVertexArrayDataHandle * reader ) const

inline

Returns true if the data has changed its usage hint since the last time mark_loaded() was called.

Definition at line 47 of file vertexBufferContext.I.

◆ get_data()

GeomVertexArrayData * VertexBufferContext::get_data ( ) const

inline

Returns the pointer to the client-side array data object.

Definition at line 28 of file vertexBufferContext.I.

Referenced by PreparedGraphicsObjects::release_all_vertex_buffers(), and PreparedGraphicsObjects::release_vertex_buffer().

◆ mark_loaded()

void VertexBufferContext::mark_loaded ( const GeomVertexArrayDataHandle * reader )

inline

Should be called after the VertexBufferContext has been loaded into graphics memory, this updates the internal flags for changed_size() and modified().

Definition at line 78 of file vertexBufferContext.I.