211 lines
6.6 KiB
C++
211 lines
6.6 KiB
C++
// Filename: geomNode.h
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// Created by: drose (22Feb02)
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//
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////////////////////////////////////////////////////////////////////
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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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////////////////////////////////////////////////////////////////////
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#ifndef GEOMNODE_H
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#define GEOMNODE_H
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#include "pandabase.h"
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#include "config_pgraph.h"
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#include "pandaNode.h"
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#include "pointerToArray.h"
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#include "geom.h"
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#include "pipelineCycler.h"
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#include "cycleData.h"
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#include "pvector.h"
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#include "copyOnWritePointer.h"
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class GraphicsStateGuardianBase;
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////////////////////////////////////////////////////////////////////
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// Class : GeomNode
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// Description : A node that holds Geom objects, renderable pieces of
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// geometry. This is the primary kind of leaf node in
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// the scene graph; almost all visible objects will be
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// contained in a GeomNode somewhere.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA_PGRAPH GeomNode : public PandaNode {
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PUBLISHED:
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GeomNode(const string &name);
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protected:
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GeomNode(const GeomNode ©);
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public:
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virtual ~GeomNode();
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virtual PandaNode *make_copy() const;
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virtual void apply_attribs_to_vertices(const AccumulatedAttribs &attribs,
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int attrib_types,
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GeomTransformer &transformer);
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virtual void xform(const LMatrix4f &mat);
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virtual PandaNode *combine_with(PandaNode *other);
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virtual CPT(TransformState)
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calc_tight_bounds(LPoint3f &min_point, LPoint3f &max_point,
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bool &found_any,
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const TransformState *transform,
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Thread *current_thread) const;
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virtual bool is_renderable() const;
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virtual CollideMask get_legal_collide_mask() const;
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virtual bool safe_to_flatten() const;
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virtual bool safe_to_combine() const;
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PUBLISHED:
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INLINE void set_preserved(bool value);
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INLINE bool get_preserved() const;
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INLINE int get_num_geoms() const;
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INLINE CPT(Geom) get_geom(int n) const;
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INLINE PT(Geom) modify_geom(int n);
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INLINE const RenderState *get_geom_state(int n) const;
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INLINE void set_geom_state(int n, const RenderState *state);
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void add_geom(Geom *geom, const RenderState *state = RenderState::make_empty());
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void add_geoms_from(const GeomNode *other);
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void set_geom(int n, Geom *geom);
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INLINE void remove_geom(int n);
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INLINE void remove_all_geoms();
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bool check_valid() const;
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void decompose();
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void unify(int max_indices, bool preserve_order);
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void write_geoms(ostream &out, int indent_level) const;
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void write_verbose(ostream &out, int indent_level) const;
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INLINE static CollideMask get_default_collide_mask();
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public:
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virtual void output(ostream &out) const;
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virtual bool is_geom_node() const;
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void do_premunge(GraphicsStateGuardianBase *gsg,
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const RenderState *node_state,
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GeomTransformer &transformer);
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protected:
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virtual void compute_internal_bounds(BoundsData *bdata, int pipeline_stage,
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Thread *current_thread) const;
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public:
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// This must be declared public so that VC6 will allow the nested
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// CData class to access it.
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class GeomEntry {
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public:
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INLINE GeomEntry(Geom *geom, const RenderState *state);
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COWPT(Geom) _geom;
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CPT(RenderState) _state;
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};
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private:
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bool _preserved;
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typedef CopyOnWriteObj< pvector<GeomEntry> > GeomList;
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typedef pmap<const InternalName *, int> NameCount;
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INLINE void count_name(NameCount &name_count, const InternalName *name);
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INLINE int get_name_count(const NameCount &name_count, const InternalName *name);
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// This is the data that must be cycled between pipeline stages.
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class EXPCL_PANDA_PGRAPH CData : public CycleData {
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public:
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INLINE CData();
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CData(const CData ©);
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virtual CycleData *make_copy() const;
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virtual void write_datagram(BamWriter *manager, Datagram &dg) const;
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virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
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virtual void fillin(DatagramIterator &scan, BamReader *manager);
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virtual TypeHandle get_parent_type() const {
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return GeomNode::get_class_type();
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}
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INLINE CPT(GeomList) get_geoms() const;
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INLINE PT(GeomList) modify_geoms();
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INLINE void set_geoms(GeomList *geoms);
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private:
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COWPT(GeomList) _geoms;
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};
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PipelineCycler<CData> _cycler;
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typedef CycleDataReader<CData> CDReader;
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typedef CycleDataWriter<CData> CDWriter;
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typedef CycleDataStageReader<CData> CDStageReader;
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typedef CycleDataLockedStageReader<CData> CDLockedStageReader;
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typedef CycleDataStageWriter<CData> CDStageWriter;
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public:
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// This class is returned from get_geoms(). It is similar to
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// PandaNode::get_children(); use this to walk through the list of
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// geoms faster than walking through the geoms directly from the
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// node.
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class EXPCL_PANDA_PGRAPH Geoms {
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public:
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INLINE Geoms();
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INLINE Geoms(const CData *cdata);
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INLINE Geoms(const Geoms ©);
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INLINE void operator = (const Geoms ©);
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INLINE int get_num_geoms() const;
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INLINE CPT(Geom) get_geom(int n) const;
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INLINE const RenderState *get_geom_state(int n) const;
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private:
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CPT(GeomList) _geoms;
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};
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INLINE Geoms get_geoms(Thread *current_thread = Thread::get_current_thread()) const;
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// This data is only needed when reading from a bam file.
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class BamAuxData : public BamReader::AuxData {
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public:
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// We just hold a pointer to the RenderState that may otherwise
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// lose its pointers before it can finalize.
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CPT(RenderState) _hold_state;
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};
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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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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void fillin(DatagramIterator &scan, BamReader *manager);
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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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GeomList::init_type();
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PandaNode::init_type();
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register_type(_type_handle, "GeomNode",
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PandaNode::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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friend class GeomTransformer;
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};
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#include "geomNode.I"
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#endif
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