Panda3D
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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...
Public Member Functions | |
TransformBlendTable () | |
TransformBlendTable (TransformBlendTable const copy) | |
int | addBlend (TransformBlend const blend) |
Adds a new blend to the table, and returns its index number. | |
cacheRef () | |
See CachedTypedWritableReferenceCount.cache_ref(). | |
bool | cacheUnref () |
Explicitly decrements the cache reference count and the normal reference count simultaneously. | |
string | encodeToBamStream () |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string. | |
bool | encodeToBamStream (basic_stringchar data, BamWriter writer) |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. | |
bool | encodeToBamStream (basic_stringchar data) |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. | |
UpdateSeq | getBamModified () |
Returns the current bam_modified counter. | |
TransformBlend const | getBlend (int n) |
Returns the nth blend in the table. | |
list | getBlends () |
int | getCacheRefCount () |
Returns the current reference count. | |
int | getMaxSimultaneousTransforms () |
Returns the maximum number of unique VertexTransform objects that are applied to any one vertex simultaneously. | |
UpdateSeq | getModified (Thread current_thread) |
Returns a counter which is guaranteed to increment at least when any TransformBlends within the table have changed. | |
int | getNumBlends () |
Returns the total number of different blend combinations in the table. | |
int | getNumTransforms () |
Returns the number of unique VertexTransform objects represented in the table. | |
int | getRefCount () |
Returns the current reference count. | |
SparseArray const | getRows () |
Returns the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects. | |
TypeHandle | getType () |
int | getTypeIndex () |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. | |
bool | isExactType (TypeHandle handle) |
Returns true if the current object is the indicated type exactly. | |
bool | isOfType (TypeHandle handle) |
Returns true if the current object is or derives from the indicated type. | |
markBamModified () | |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. | |
SparseArray | modifyRows () |
Returns a modifiable reference to the SparseArray that specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects. | |
TransformBlendTable | operator= (TransformBlendTable const copy) |
PyObject | reduce (PyObject self) |
This special Python method is implement to provide support for the pickle module. | |
PyObject | reducePersist (PyObject self, PyObject pickler) |
This special Python method is implement to provide support for the pickle module. | |
ref () | |
Explicitly increments the reference count. | |
removeBlend (int n) | |
Removes the blend at the nth position. | |
setBlend (int n, TransformBlend const blend) | |
Replaces the blend at the nth position with the indicated value. | |
setRows (SparseArray const rows) | |
Specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects. | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. | |
bool | testRefCountNonzero () |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. | |
bool | unref () |
Explicitly decrements the reference count. | |
write (ostream out, int indent_level) | |
Static Public Member Functions | |
static TypedWritableReferenceCount | decodeFromBamStream (string data, BamReader reader) |
Reads the string created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on that string. | |
static TypedWritableReferenceCount | decodeFromBamStream (string data) |
Reads the string created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on that string. | |
static TypeHandle | getClassType () |
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.
TransformBlendTable | ( | TransformBlendTable const | copy | ) |
int addBlend | ( | TransformBlend const | 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.
cacheRef | ( | ) | [inherited] |
See CachedTypedWritableReferenceCount.cache_ref().
Reimplemented from CachedTypedWritableReferenceCount.
bool cacheUnref | ( | ) | [inherited] |
Explicitly decrements the cache reference count and the normal reference count simultaneously.
The return value is true if the new reference count is nonzero, false if it is zero.
Reimplemented in TransformState, and RenderState.
static TypedWritableReferenceCount decodeFromBamStream | ( | string | data, |
BamReader | reader | ||
) | [static, inherited] |
Reads the string created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on that string.
Returns NULL on error.
This method is intended to replace decode_raw_from_bam_stream() when you know the stream in question returns an object of type TypedWritableReferenceCount, allowing for easier reference count management. Note that the caller is still responsible for maintaining the reference count on the return value.
static TypedWritableReferenceCount decodeFromBamStream | ( | string | data | ) | [static, inherited] |
Reads the string created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on that string.
Returns NULL on error.
This method is intended to replace decode_raw_from_bam_stream() when you know the stream in question returns an object of type TypedWritableReferenceCount, allowing for easier reference count management. Note that the caller is still responsible for maintaining the reference count on the return value.
string encodeToBamStream | ( | ) | [inherited] |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string.
Returns empty string on failure.
This is a convenience method particularly useful for cases when you are only serializing a single object. If you have many objects to process, it is more efficient to use the same BamWriter to serialize all of them together.
bool encodeToBamStream | ( | basic_stringchar | data, |
BamWriter | writer | ||
) | [inherited] |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string.
Returns true on success, false on failure.
This is a convenience method particularly useful for cases when you are only serializing a single object. If you have many objects to process, it is more efficient to use the same BamWriter to serialize all of them together.
bool encodeToBamStream | ( | basic_stringchar | data | ) | [inherited] |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string.
Returns true on success, false on failure.
This is a convenience method particularly useful for cases when you are only serializing a single object. If you have many objects to process, it is more efficient to use the same BamWriter to serialize all of them together.
UpdateSeq getBamModified | ( | ) | [inherited] |
Returns the current bam_modified counter.
This counter is normally incremented automatically whenever the object is modified.
TransformBlend const getBlend | ( | int | n | ) |
Returns the nth blend in the table.
list getBlends | ( | ) |
int getCacheRefCount | ( | ) | [inherited] |
Returns the current reference count.
static TypeHandle getClassType | ( | ) | [static] |
Reimplemented from CopyOnWriteObject.
int getMaxSimultaneousTransforms | ( | ) |
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().
Returns a counter which is guaranteed to increment at least when any TransformBlends within the table have changed.
int getNumBlends | ( | ) |
Returns the total number of different blend combinations in the table.
int getNumTransforms | ( | ) |
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().
int getRefCount | ( | ) | [inherited] |
Returns the current reference count.
SparseArray const getRows | ( | ) |
Returns the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects.
TypeHandle getType | ( | ) | [inherited] |
Reimplemented in AnimChannelBase.
int getTypeIndex | ( | ) | [inherited] |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
This is equivalent to get_type().get_index().
bool isExactType | ( | TypeHandle | handle | ) | [inherited] |
Returns true if the current object is the indicated type exactly.
bool isOfType | ( | TypeHandle | handle | ) | [inherited] |
Returns true if the current object is or derives from the indicated type.
markBamModified | ( | ) | [inherited] |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams.
This should normally not need to be called by user code; it should be called internally when the object has been changed in a way that legitimately requires its retransmission to any connected clients.
SparseArray modifyRows | ( | ) |
Returns a modifiable reference to the SparseArray that specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects.
TransformBlendTable operator= | ( | TransformBlendTable const | copy | ) |
PyObject reduce | ( | PyObject | self | ) | [inherited] |
This special Python method is implement to provide support for the pickle module.
This hooks into the native pickle and cPickle modules, but it cannot properly handle self-referential BAM objects.
PyObject reducePersist | ( | PyObject | self, |
PyObject | pickler | ||
) | [inherited] |
This special Python method is implement to provide support for the pickle module.
This is similar to __reduce__, but it provides additional support for the missing persistent-state object needed to properly support self-referential BAM objects written to the pickle stream. This hooks into the pickle and cPickle modules implemented in direct/src/stdpy.
ref | ( | ) | [inherited] |
Explicitly increments the reference count.
User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.
This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.
removeBlend | ( | int | n | ) |
Removes the blend at the nth position.
setBlend | ( | int | n, |
TransformBlend const | blend | ||
) |
Replaces the blend at the nth position with the indicated value.
setRows | ( | SparseArray const | rows | ) |
Specifies the subset of rows (vertices) in the associated GeomVertexData that this TransformBlendTable actually affects.
bool testRefCountIntegrity | ( | ) | [inherited] |
Does some easy checks to make sure that the reference count isn't completely bogus.
Reimplemented from ReferenceCount.
Reimplemented in NodeCachedReferenceCount.
bool testRefCountNonzero | ( | ) | [inherited] |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
Returns true if ok, false otherwise.
bool unref | ( | ) | [inherited] |
Explicitly decrements the reference count.
Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete().
User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.
This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.
The return value is true if the new reference count is nonzero, false if it is zero.
Reimplemented in GeomVertexArrayFormat, and GeomVertexFormat.