118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
// Filename: vertexTransform.h
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// Created by: drose (23Mar05)
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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) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef VERTEXTRANSFORM_H
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#define VERTEXTRANSFORM_H
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#include "pandabase.h"
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#include "typedWritableReferenceCount.h"
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#include "updateSeq.h"
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#include "luse.h"
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#include "pset.h"
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#include "cycleData.h"
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#include "cycleDataReader.h"
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#include "cycleDataWriter.h"
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#include "pipelineCycler.h"
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class TransformTable;
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////////////////////////////////////////////////////////////////////
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// Class : VertexTransform
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// Description : This is an abstract base class that holds a pointer
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// to some transform, computed in some arbitrary way,
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// that is to be applied to vertices during rendering.
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// This is used to implement soft-skinned and animated
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// vertices. Derived classes will define how the
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// transform is actually computed.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA VertexTransform : public TypedWritableReferenceCount {
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PUBLISHED:
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VertexTransform();
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virtual ~VertexTransform();
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virtual void get_matrix(LMatrix4f &matrix) const=0;
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virtual void mult_matrix(LMatrix4f &result, const LMatrix4f &previous) const;
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virtual void accumulate_matrix(LMatrix4f &accum, float weight) const;
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INLINE UpdateSeq get_modified() const;
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virtual void output(ostream &out) const;
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virtual void write(ostream &out, int indent_level) const;
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static UpdateSeq get_next_modified();
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INLINE static UpdateSeq get_global_modified();
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protected:
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void mark_modified();
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private:
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typedef pset<TransformTable *> Palettes;
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Palettes _tables;
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// This is the data that must be cycled between pipeline stages.
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class EXPCL_PANDA CData : public CycleData {
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public:
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INLINE CData();
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INLINE 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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UpdateSeq _modified;
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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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static PipelineCycler<CData> _global_cycler;
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static UpdateSeq _next_modified;
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public:
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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protected:
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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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TypedWritableReferenceCount::init_type();
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register_type(_type_handle, "VertexTransform",
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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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friend class TransformTable;
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};
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INLINE ostream &operator << (ostream &out, const VertexTransform &obj);
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#include "vertexTransform.I"
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#endif
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