220 lines
7.6 KiB
C
220 lines
7.6 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file internalName.h
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* @author drose
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* @date 2004-07-15
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*/
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#ifndef INTERNALNAME_H
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#define INTERNALNAME_H
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#include "pandabase.h"
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#include "typedWritableReferenceCount.h"
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#include "pointerTo.h"
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#include "pmap.h"
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#include "lightMutex.h"
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#include "lightMutexHolder.h"
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class FactoryParams;
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/**
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* Encodes a string name in a hash table, mapping it to a pointer. This is
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* used to tokenify names so they may be used efficiently in low-level Panda
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* structures, for instance to differentiate the multiple sets of texture
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* coordinates that might be stored on a Geom.
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*
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* InternalNames are hierarchical, with the '.' used by convention as a
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* separator character. You can construct a single InternalName as a
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* composition of one or more other names, or by giving it a source string
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* directly.
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*/
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class EXPCL_PANDA_GOBJ InternalName final : public TypedWritableReferenceCount {
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private:
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InternalName(InternalName *parent, const std::string &basename);
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public:
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INLINE static PT(InternalName) make(const std::string &name);
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template<int N>
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INLINE static PT(InternalName) make(const char (&literal)[N]);
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PUBLISHED:
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virtual ~InternalName();
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virtual bool unref() const;
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static PT(InternalName) make(const std::string &name, int index);
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PT(InternalName) append(const std::string &basename);
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INLINE InternalName *get_parent() const;
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std::string get_name() const;
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std::string join(const std::string &sep) const;
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INLINE const std::string &get_basename() const;
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MAKE_PROPERTY(parent, get_parent);
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MAKE_PROPERTY(name, get_name);
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MAKE_PROPERTY(basename, get_basename);
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int find_ancestor(const std::string &basename) const;
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const InternalName *get_ancestor(int n) const;
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const InternalName *get_top() const;
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std::string get_net_basename(int n) const;
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void output(std::ostream &out) const;
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// Some predefined built-in names.
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INLINE static PT(InternalName) get_root();
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INLINE static PT(InternalName) get_error();
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INLINE static PT(InternalName) get_vertex();
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INLINE static PT(InternalName) get_normal();
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INLINE static PT(InternalName) get_tangent();
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INLINE static PT(InternalName) get_tangent_name(const std::string &name);
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INLINE static PT(InternalName) get_binormal();
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INLINE static PT(InternalName) get_binormal_name(const std::string &name);
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INLINE static PT(InternalName) get_texcoord();
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INLINE static PT(InternalName) get_texcoord_name(const std::string &name);
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INLINE static PT(InternalName) get_color();
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INLINE static PT(InternalName) get_rotate();
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INLINE static PT(InternalName) get_size();
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INLINE static PT(InternalName) get_aspect_ratio();
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INLINE static PT(InternalName) get_transform_blend();
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INLINE static PT(InternalName) get_transform_weight();
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INLINE static PT(InternalName) get_transform_index();
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INLINE static PT(InternalName) get_morph(InternalName *column, const std::string &slider);
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INLINE static PT(InternalName) get_index();
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INLINE static PT(InternalName) get_world();
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INLINE static PT(InternalName) get_camera();
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INLINE static PT(InternalName) get_model();
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INLINE static PT(InternalName) get_view();
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#ifdef HAVE_PYTHON
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// These versions are exposed to Python, which have additional logic to map
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// from Python interned strings.
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EXTENSION(static PT(InternalName) make(PyObject *str));
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#endif
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public:
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#ifdef HAVE_PYTHON
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// It's OK for us to define it here since these are just pointers of which
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// the reference is maintained indefinitely.
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typedef phash_map<PyObject *, InternalName *, pointer_hash> PyInternTable;
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static PyInternTable _py_intern_table;
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#endif
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private:
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PT(InternalName) _parent;
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std::string _basename;
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typedef phash_map<std::string, InternalName *, string_hash> NameTable;
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NameTable _name_table;
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LightMutex _name_table_lock;
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typedef phash_map<const char *, PT(InternalName), pointer_hash> LiteralTable;
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static LiteralTable _literal_table;
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static LightMutex _literal_table_lock;
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static PT(InternalName) _root;
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static PT(InternalName) _error;
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static PT(InternalName) _default;
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static PT(InternalName) _vertex;
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static PT(InternalName) _normal;
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static PT(InternalName) _tangent;
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static PT(InternalName) _binormal;
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static PT(InternalName) _texcoord;
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static PT(InternalName) _color;
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static PT(InternalName) _rotate;
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static PT(InternalName) _size;
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static PT(InternalName) _aspect_ratio;
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static PT(InternalName) _transform_blend;
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static PT(InternalName) _transform_weight;
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static PT(InternalName) _transform_index;
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static PT(InternalName) _index;
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static PT(InternalName) _world;
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static PT(InternalName) _camera;
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static PT(InternalName) _model;
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static PT(InternalName) _view;
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public:
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// Datagram stuff
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &me);
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virtual void finalize(BamReader *manager);
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protected:
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static TypedWritable *make_from_bam(const FactoryParams ¶ms);
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static TypedWritable *make_texcoord_from_bam(const FactoryParams ¶ms);
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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TypedWritableReferenceCount::init_type();
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register_type(_type_handle, "InternalName",
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TypedWritableReferenceCount::get_class_type());
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// The _texcoord_type_handle is defined only to support older bam files,
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// generated before we renamed the type to InternalName.
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register_type(_texcoord_type_handle, "TexCoordName",
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TypedWritableReferenceCount::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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static TypeHandle _texcoord_type_handle;
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};
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// We can safely redefine this as a no-op.
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template<>
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INLINE void PointerToBase<InternalName>::update_type(To *ptr) {}
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INLINE std::ostream &operator << (std::ostream &out, const InternalName &tcn);
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/**
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* This is a const pointer to an InternalName, and should be used in lieu of a
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* CPT(InternalName) in function arguments. The extra feature that it offers
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* is that it has a constructor to automatically convert from a string, so
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* that strings are coerced by the compiler when passed to such a function.
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*/
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#ifdef CPPPARSER
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// The construct below confuses interrogate, so we give it a typedef.
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typedef ConstPointerTo<InternalName> CPT_InternalName;
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#else
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class CPT_InternalName : public ConstPointerTo<InternalName> {
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public:
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INLINE CPT_InternalName(const To *ptr = nullptr);
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INLINE CPT_InternalName(const PointerTo<InternalName> ©);
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INLINE CPT_InternalName(PointerTo<InternalName> &&from) noexcept;
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INLINE CPT_InternalName(const ConstPointerTo<InternalName> ©);
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INLINE CPT_InternalName(ConstPointerTo<InternalName> &&from) noexcept;
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INLINE CPT_InternalName(const std::string &name);
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template<int N>
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INLINE CPT_InternalName(const char (&literal)[N]);
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INLINE CPT_InternalName &operator = (const To *ptr);
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INLINE CPT_InternalName &operator = (const PointerTo<InternalName> ©);
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INLINE CPT_InternalName &operator = (const ConstPointerTo<InternalName> ©);
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INLINE CPT_InternalName &operator = (PointerTo<InternalName> &&from) noexcept;
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INLINE CPT_InternalName &operator = (ConstPointerTo<InternalName> &&from) noexcept;
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};
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INLINE void swap(CPT_InternalName &one, CPT_InternalName &two) noexcept {
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one.swap(two);
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}
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#endif // CPPPARSER
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#include "internalName.I"
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#endif
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