Panda3D
Public Member Functions | Static Public Member Functions | List of all members
VertexBufferContext Class Reference

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...

Inheritance diagram for VertexBufferContext:
BufferContext AdaptiveLruPage SavedContext TypedObject

Public Member Functions

bool changedSize (const GeomVertexArrayDataHandle reader)
 Returns true if the data has changed size since the last time mark_loaded() was called. More...
 
bool changedUsageHint (const GeomVertexArrayDataHandle reader)
 Returns true if the data has changed its usage hint since the last time mark_loaded() was called. More...
 
GeomVertexArrayData getData ()
 Returns the pointer to the client-side array data object. More...
 
bool wasModified (const GeomVertexArrayDataHandle reader)
 Returns true if the data has been modified since the last time mark_loaded() was called. More...
 
- Public Member Functions inherited from BufferContext
bool getActive ()
 Returns the active flag associated with this object. More...
 
int getDataSizeBytes ()
 Returns the number of bytes previously reported for the data object. More...
 
UpdateSeq getModified ()
 Returns the UpdateSeq that was recorded the last time mark_loaded() was called. More...
 
bool getResident ()
 Returns the resident flag associated with this object. More...
 
- Public Member Functions inherited from TypedObject
TypeHandle getType ()
 
int getTypeIndex ()
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...
 
bool isExactType (TypeHandle handle)
 Returns true if the current object is the indicated type exactly. More...
 
bool isOfType (TypeHandle handle)
 Returns true if the current object is or derives from the indicated type. More...
 
- Public Member Functions inherited from AdaptiveLruPage
 __init__ (const AdaptiveLruPage copy)
 
 __init__ (int lru_size)
 
 dequeueLru ()
 Removes the page from its AdaptiveLru. More...
 
 enqueueLru (AdaptiveLru lru)
 Adds the page to the LRU for the first time, or marks it recently-accessed if it has already been added. More...
 
 evictLru ()
 Evicts the page from the LRU. More...
 
AdaptiveLru getLru ()
 Returns the LRU that manages this page, or NULL if it is not currently managed by any LRU. More...
 
int getLruSize ()
 Returns the size of this page as reported to the LRU, presumably in bytes. More...
 
unsigned int getNumFrames ()
 Returns the number of frames since the page was first added to its LRU. More...
 
unsigned int getNumInactiveFrames ()
 Returns the number of frames since the page was last accessed on its LRU. More...
 
 markUsedLru ()
 To be called when the page is used; this will move it to the tail of the AdaptiveLru queue it is already on. More...
 
 markUsedLru (AdaptiveLru lru)
 To be called when the page is used; this will move it to the tail of the specified AdaptiveLru queue. More...
 
AdaptiveLruPage operator= (const AdaptiveLruPage copy)
 
 output (Ostream out)
 
 setLruSize (int lru_size)
 Specifies the size of this page, presumably in bytes, although any unit is possible. More...
 
 write (Ostream out, int indent_level)
 

Static Public Member Functions

static TypeHandle getClassType ()
 
- Static Public Member Functions inherited from BufferContext
static TypeHandle getClassType ()
 
- Static Public Member Functions inherited from SavedContext
static TypeHandle getClassType ()
 
- Static Public Member Functions inherited from TypedObject
static TypeHandle getClassType ()
 

Additional Inherited Members

- Public Attributes inherited from BufferContext
bool active
 Returns the active flag associated with this object. More...
 
int data_size_bytes
 Returns the number of bytes previously reported for the data object. More...
 
UpdateSeq modified
 Returns the UpdateSeq that was recorded the last time mark_loaded() was called. More...
 
TypedWritableReferenceCount object
 Returns the associated object. More...
 
bool resident
 Returns the resident flag associated with this object. More...
 
- Public Attributes inherited from TypedObject
TypeHandle type
 Returns the TypeHandle representing this object's type. More...
 

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.

Member Function Documentation

◆ changedSize()

bool changedSize ( const GeomVertexArrayDataHandle  reader)

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

◆ changedUsageHint()

bool changedUsageHint ( const GeomVertexArrayDataHandle  reader)

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

◆ getClassType()

static TypeHandle getClassType ( )
static

◆ getData()

GeomVertexArrayData getData ( )

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

◆ wasModified()

bool wasModified ( const GeomVertexArrayDataHandle  reader)

Returns true if the data has been modified since the last time mark_loaded() was called.