This structure collects together the different combinations of transforms and blend amounts used by a GeomVertexData, to facilitate computing dynamic vertices on the CPU at runtime. More...

#include "transformBlendTable.h"

Inheritance diagram for TransformBlendTable:

Public Member Functions
	TransformBlendTable (const TransformBlendTable &copy)

size_t	add_blend (const TransformBlend &blend)
	Adds a new blend to the table, and returns its index number. More...

virtual int	complete_pointers (TypedWritable *plist, BamReader manager)
	Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More...

virtual TypeHandle	force_init_type ()

const TransformBlend &	get_blend (size_t n) const

int	get_max_simultaneous_transforms () const

UpdateSeq	get_modified (Thread *current_thread=Thread::get_current_thread()) const

size_t	get_num_blends () const

int	get_num_transforms () const

const SparseArray &	get_rows () const

virtual TypeHandle	get_type () const

SparseArray &	modify_rows ()
	Returns a modifiable reference to the SparseArray that specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects. More...

void	operator= (const TransformBlendTable &copy)

void	remove_blend (size_t n)

void	set_blend (size_t n, const TransformBlend &blend)

void	set_rows (const SparseArray &rows)

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

virtual void	write_datagram (BamWriter *manager, Datagram &dg)
	Writes the contents of this object to the datagram for shipping out to a Bam file. More...

Public Member Functions inherited from CopyOnWriteObject
	CopyOnWriteObject (const CopyOnWriteObject &copy)

void	operator= (const CopyOnWriteObject &copy)

Public Member Functions inherited from CachedTypedWritableReferenceCount
void	cache_ref () const
	Explicitly increments the cache reference count and the normal reference count simultaneously. More...

void	cache_ref_only () const
	Decrements the cache reference count without affecting the normal reference count. More...

bool	cache_unref () const
	Explicitly decrements the cache reference count and the normal reference count simultaneously. More...

int	get_cache_ref_count () const

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

Public Member Functions inherited from TypedWritableReferenceCount
	TypedWritableReferenceCount (const TypedWritableReferenceCount &copy)

virtual ReferenceCount *	as_reference_count ()
	Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More...

void	operator= (const TypedWritableReferenceCount &copy)

Public Member Functions inherited from TypedWritable
	TypedWritable (const TypedWritable &copy)

vector_uchar	encode_to_bam_stream () const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More...

bool	encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More...

virtual void	finalize (BamReader *manager)
	Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More...

UpdateSeq	get_bam_modified () const
	Returns the current bam_modified counter. More...

void	mark_bam_modified ()
	Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More...

void	operator= (const TypedWritable &copy)

virtual bool	require_fully_complete () const
	Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More...

virtual void	update_bam_nested (BamWriter *manager)
	Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. 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 ReferenceCount
int	get_ref_count () const

WeakReferenceList *	get_weak_list () const
	Returns the WeakReferenceList associated with this ReferenceCount object. More...

bool	has_weak_list () const
	Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...

void	local_object ()
	This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...

void	ref () const
	Explicitly increments the reference count. More...

bool	ref_if_nonzero () const
	Atomically increases the reference count of this object if it is not zero. More...

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

bool	test_ref_count_nonzero () const
	Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...

virtual bool	unref () const
	Explicitly decrements the reference count. More...

WeakReferenceList *	weak_ref ()
	Adds the indicated PointerToVoid as a weak reference to this object. More...

void	weak_unref ()
	Removes the indicated PointerToVoid as a weak reference to this object. More...

Static Public Member Functions
static TypeHandle	get_class_type ()

static void	init_type ()

static void	register_with_read_factory ()
	Tells the BamReader how to create objects of type TransformBlendTable. More...

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

static void	init_type ()

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

static void	init_type ()

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

static void	init_type ()

static	PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data

Static Public Member Functions inherited from TypedWritable
static bool	decode_raw_from_bam_stream (TypedWritable &ptr, ReferenceCount &ref_ptr, vector_uchar data, BamReader *reader=nullptr)
	Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More...

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...

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

static void	init_type ()

Public Attributes
	get_blend
	Returns the nth blend in the table. More...

	get_max_simultaneous_transforms
	Returns the maximum number of unique VertexTransform objects that are applied to any one vertex simultaneously. More...

	get_modified
	Returns a counter which is guaranteed to increment at least when any TransformBlends within the table have changed. More...

	get_num_blends
	Returns the total number of different blend combinations in the table. More...

	get_num_transforms
	Returns the number of unique VertexTransform objects represented in the table. More...

	get_rows
	Returns the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects. More...

	remove_blend
	Removes the blend at the nth position. More...

	set_blend
	Replaces the blend at the nth position with the indicated value. More...

	set_rows
	Specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects. More...

Public Attributes inherited from CachedTypedWritableReferenceCount
	get_cache_ref_count
	Returns the current reference count. More...

Public Attributes inherited from TypedWritableReferenceCount
static BamReader *	reader = nullptr)

Public Attributes inherited from TypedObject
	get_type

Public Attributes inherited from ReferenceCount
	get_ref_count
	Returns the current reference count. More...

Friends
class	VertexTransform

Additional Inherited Members
Static Public Attributes inherited from TypedWritable
static TypedWritable *const	Null = nullptr

Detailed Description

This structure collects together the different combinations of transforms and blend amounts used by a GeomVertexData, to facilitate computing dynamic vertices on the CPU at runtime.

Each vertex has a pointer to exactly one of the entries in this table, and each entry defines a number of transform/blend combinations.

This structure is used for a GeomVertexData set up to compute its dynamic vertices on the CPU. See TransformTable for one set up to compute its dynamic vertices on the graphics card.

Definition at line 45 of file transformBlendTable.h.

Member Function Documentation

◆ add_blend()

size_t TransformBlendTable::add_blend ( const TransformBlend & blend )

Adds a new blend to the table, and returns its index number.

If there is already an identical blend in the table, simply returns that number instead.

Definition at line 87 of file transformBlendTable.cxx.

References TransformBlend::get_num_transforms.

Referenced by PT().

◆ complete_pointers()

int TransformBlendTable::complete_pointers	(	TypedWritable **	p_list,
		BamReader *	manager
	)

virtual

Receives an array of pointers, one for each time manager->read_pointer() was called in fillin().

Returns the number of pointers processed.

Reimplemented from TypedWritable.

Definition at line 230 of file transformBlendTable.cxx.

◆ modify_rows()

SparseArray & TransformBlendTable::modify_rows ( )

inline

Returns a modifiable reference to the SparseArray that specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects.

Definition at line 102 of file transformBlendTable.I.

◆ register_with_read_factory()

void TransformBlendTable::register_with_read_factory ( )

static

Tells the BamReader how to create objects of type TransformBlendTable.

Definition at line 202 of file transformBlendTable.cxx.

References BamReader::get_factory(), and Factory< Type >::register_factory().

◆ write_datagram()

void TransformBlendTable::write_datagram	(	BamWriter *	manager,
		Datagram &	dg
	)

virtual

Writes the contents of this object to the datagram for shipping out to a Bam file.

Reimplemented from TypedWritable.

Definition at line 211 of file transformBlendTable.cxx.

References Datagram::add_uint16(), BamWriter::write_cdata(), TypedWritable::write_datagram(), and SparseArray::write_datagram().

Member Data Documentation

◆ get_blend

const TransformBlend & TransformBlendTable::get_blend

inline

Returns the nth blend in the table.

Definition at line 57 of file transformBlendTable.h.

◆ get_max_simultaneous_transforms

int TransformBlendTable::get_max_simultaneous_transforms

inline

Returns the maximum number of unique VertexTransform objects that are applied to any one vertex simultaneously.

This is the same limit reflected by GraphicsStateGuardian::get_max_vertex_transforms().

Definition at line 76 of file transformBlendTable.h.

◆ get_modified

UpdateSeq TransformBlendTable::get_modified

inline

Returns a counter which is guaranteed to increment at least when any TransformBlends within the table have changed.

Definition at line 74 of file transformBlendTable.h.

◆ get_num_blends

size_t TransformBlendTable::get_num_blends

inline

Returns the total number of different blend combinations in the table.

Definition at line 57 of file transformBlendTable.h.

◆ get_num_transforms

int TransformBlendTable::get_num_transforms

inline

Returns the number of unique VertexTransform objects represented in the table.

This will correspond to the size of the TransformTable object that would represent the same table. This is also the same limit reflected by GraphicsStateGuardian::get_max_vertex_transform_indices().

Definition at line 75 of file transformBlendTable.h.

◆ get_rows

const SparseArray & TransformBlendTable::get_rows

inline

Returns the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects.

Definition at line 77 of file transformBlendTable.h.

◆ remove_blend

void TransformBlendTable::remove_blend

Removes the blend at the nth position.

Definition at line 73 of file transformBlendTable.h.

◆ set_blend

void TransformBlendTable::set_blend

Replaces the blend at the nth position with the indicated value.

Definition at line 73 of file transformBlendTable.h.

◆ set_rows

void TransformBlendTable::set_rows

inline

Specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects.

Definition at line 77 of file transformBlendTable.h.

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

panda/src/gobj/transformBlendTable.h
panda/src/gobj/transformBlendTable.cxx
panda/src/gobj/transformBlendTable.I

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ add_blend()

◆ complete_pointers()

◆ modify_rows()

◆ register_with_read_factory()

◆ write_datagram()

Member Data Documentation

◆ get_blend

◆ get_max_simultaneous_transforms

◆ get_modified

◆ get_num_blends

◆ get_num_transforms

◆ get_rows

◆ remove_blend

◆ set_blend

◆ set_rows