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TransformBlendTable Class Reference

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:
CopyOnWriteObject CachedTypedWritableReferenceCount TypedWritableReferenceCount TypedWritable ReferenceCount TypedObject MemoryBase MemoryBase

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 TransformBlendget_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 SparseArrayget_rows () const
 
virtual TypeHandle get_type () const
 
SparseArraymodify_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 ReferenceCountas_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
 
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
const TypedObjectas_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...
 
TypedObjectoperator= (const TypedObject &copy)=default
 
- Public Member Functions inherited from ReferenceCount
int get_ref_count () const
 
WeakReferenceListget_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...
 
WeakReferenceListweak_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 BamReaderreader = 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: