Objects of this class are used to convert vertex data from a Geom into a format suitable for passing to the rendering backend. More...
#include "geomMunger.h"
Public Member Functions | |
GeomMunger (GraphicsStateGuardianBase *gsg) | |
GeomMunger (const GeomMunger ©) | |
int | compare_to (const GeomMunger &other) const |
Provides an arbitrary ordering among all unique GeomMungers, so we can store the essentially different ones in a big set and throw away the rest. More... | |
CPT (GeomVertexFormat) munge_format(const GeomVertexFormat *format | |
CPT (GeomVertexData) munge_data(const GeomVertexData *data) const | |
CPT (GeomVertexFormat) premunge_format(const GeomVertexFormat *format) const | |
CPT (GeomVertexData) premunge_data(const GeomVertexData *data) const | |
virtual TypeHandle | force_init_type () |
int | geom_compare_to (const GeomMunger &other) const |
Compares two GeomMungers, considering only whether they would produce a different answer to munge_format(), munge_data(), or munge_geom(). More... | |
GraphicsStateGuardianBase * | get_gsg () const |
Returns a pointer to the GSG that created this munger. More... | |
virtual TypeHandle | get_type () const |
bool | is_registered () const |
Returns true if this munger has been registered, false if it has not. More... | |
bool | munge_geom (CPT(Geom)&geom, CPT(GeomVertexData)&data, bool force, Thread *current_thread) |
Applies the indicated munger to the geom and its data, and returns a (possibly different) geom and data, according to the munger's whim. More... | |
void | operator= (const GeomMunger ©) |
void | premunge_geom (CPT(Geom)&geom, CPT(GeomVertexData)&data) const |
void | remove_data (const GeomVertexData *data) |
Removes a prepared GeomVertexData from the cache. More... | |
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TypedReferenceCount (const TypedReferenceCount ©) | |
void | operator= (const TypedReferenceCount ©) |
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TypedObject (const TypedObject ©) | |
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... | |
void | operator= (const TypedObject ©) |
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int | get_ref_count () const |
Returns the current reference count. More... | |
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 | 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... | |
void | weak_ref (WeakPointerToVoid *ptv) |
Adds the indicated PointerToVoid as a weak reference to this object. More... | |
void | weak_unref (WeakPointerToVoid *ptv) |
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 | PT (GeomMunger) register_munger(GeomMunger *munger |
static void | unregister_mungers_for_gsg (GraphicsStateGuardianBase *gsg) |
Removes all the mungers from the registry that are associated with the indicated GSG. More... | |
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static TypeHandle | get_class_type () |
static void | init_type () |
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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... | |
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static TypeHandle | get_class_type () |
static void | init_type () |
Public Attributes | |
const GeomVertexAnimationSpec &animation | const |
static Thread * | current_thread |
Friends | |
class | Geom |
Additional Inherited Members | |
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enum | AnimationType { AT_none, AT_panda, AT_hardware } |
enum | Contents { C_other, C_point, C_clip_point, C_vector, C_texcoord, C_color, C_index, C_morph_delta, C_matrix, C_normal } |
enum | GeomRendering { GR_indexed_point = 0x00001, GR_indexed_other = 0x10000, GR_indexed_bits = 0x10001, GR_point = 0x00002, GR_point_uniform_size = 0x00004, GR_per_point_size = 0x00008, GR_point_perspective = 0x00010, GR_point_aspect_ratio = 0x00020, GR_point_scale = 0x00040, GR_point_rotate = 0x00080, GR_point_sprite = 0x00100, GR_point_sprite_tex_matrix = 0x00200, GR_point_bits = 0x003fe, GR_triangle_strip = 0x00400, GR_triangle_fan = 0x00800, GR_line_strip = 0x01000, GR_composite_bits = 0x01c00, GR_strip_cut_index = 0x20000, GR_flat_first_vertex = 0x02000, GR_flat_last_vertex = 0x04000, GR_shade_model_bits = 0x06000 } |
enum | NumericType { NT_uint8, NT_uint16, NT_uint32, NT_packed_dcba, NT_packed_dabc, NT_float32, NT_float64, NT_stdfloat } |
enum | PrimitiveType { PT_none, PT_polygons, PT_lines, PT_points, PT_patches } |
enum | ShadeModel { SM_uniform, SM_smooth, SM_flat_first_vertex, SM_flat_last_vertex } |
enum | UsageHint { UH_client, UH_stream, UH_dynamic, UH_static, UH_unspecified } |
Objects of this class are used to convert vertex data from a Geom into a format suitable for passing to the rendering backend.
Typically, the rendering backend will create a specialization of this class to handle its particular needs (e.g. DXGeomMunger). This class is necessary because DirectX and OpenGL have somewhat different requirements for vertex format.
This also performs runtime application of state changes to the vertex data; for instance, by scaling all of the color values in response to a ColorScaleAttrib.
A GeomMunger must be registered before it can be used, and once registered, the object is constant and cannot be changed. All registered GeomMungers that perform the same operation will have the same pointer.
Definition at line 57 of file geomMunger.h.
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inline |
Provides an arbitrary ordering among all unique GeomMungers, so we can store the essentially different ones in a big set and throw away the rest.
Definition at line 162 of file geomMunger.I.
References TypeHandle::get_index().
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inline |
Compares two GeomMungers, considering only whether they would produce a different answer to munge_format(), munge_data(), or munge_geom().
(They still might be different in other ways, but if they would produce the same answer, this function consider them to be the same.)
Definition at line 186 of file geomMunger.I.
References TypeHandle::get_index().
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inline |
Returns a pointer to the GSG that created this munger.
Definition at line 23 of file geomMunger.I.
Referenced by StandardMunger::get_gsg().
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inline |
Returns true if this munger has been registered, false if it has not.
It may not be used for a Geom until it has been registered, but once registered, it may no longer be modified.
Definition at line 36 of file geomMunger.I.
bool GeomMunger::munge_geom | ( | CPT(Geom)& | geom, |
CPT(GeomVertexData)& | data, | ||
bool | force, | ||
Thread * | current_thread | ||
) |
Applies the indicated munger to the geom and its data, and returns a (possibly different) geom and data, according to the munger's whim.
The assumption is that for a particular geom and a particular munger, the result will always be the same; so this result may be cached.
If force is false, this may do nothing and return false if the vertex data is nonresident. If force is true, this will always return true, but it may have to block while the vertex data is paged in.
Definition at line 111 of file geomMunger.cxx.
References LightMutexDirect::acquire(), Geom::get_modified(), GeomVertexData::get_modified(), LightMutexDirect::release(), Geom::request_resident(), and GeomVertexData::request_resident().
Referenced by CullableObject::munge_geom().
void GeomMunger::remove_data | ( | const GeomVertexData * | data | ) |
Removes a prepared GeomVertexData from the cache.
Definition at line 87 of file geomMunger.cxx.
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inlinestatic |
Removes all the mungers from the registry that are associated with the indicated GSG.
Definition at line 67 of file geomMunger.I.