169 lines
5.7 KiB
C++
169 lines
5.7 KiB
C++
// Filename: qpgeomVertexArrayData.h
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// Created by: drose (17Mar05)
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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 qpGEOMVERTEXARRAYDATA_H
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#define qpGEOMVERTEXARRAYDATA_H
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#include "pandabase.h"
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#include "typedWritableReferenceCount.h"
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#include "qpgeomVertexArrayFormat.h"
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#include "qpgeomEnums.h"
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#include "pta_uchar.h"
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#include "updateSeq.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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#include "pmap.h"
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class PreparedGraphicsObjects;
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class VertexBufferContext;
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class GraphicsStateGuardianBase;
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////////////////////////////////////////////////////////////////////
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// Class : qpGeomVertexArrayData
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// Description : This is the data for one array of a GeomVertexData
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// structure. Many GeomVertexData structures will only
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// define one array, with all data elements interleaved
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// (DirectX 8.0 and before insisted on this format);
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// some will define multiple arrays.
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//
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// DirectX calls this concept of one array a "stream".
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// It also closely correlates with the concept of a
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// vertex buffer.
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//
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// This object is just a block of data. In general, you
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// should not be directly messing with this object from
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// application code. See GeomVertexData for the
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// organizing structure, and see
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// GeomVertexReader/Writer/Rewriter for high-level tools
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// to manipulate the actual vertex data.
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//
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// This is part of the experimental Geom rewrite.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA qpGeomVertexArrayData : public TypedWritableReferenceCount, public qpGeomEnums {
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private:
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qpGeomVertexArrayData();
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PUBLISHED:
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qpGeomVertexArrayData(const qpGeomVertexArrayFormat *array_format,
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UsageHint usage_hint);
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qpGeomVertexArrayData(const qpGeomVertexArrayData ©);
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void operator = (const qpGeomVertexArrayData ©);
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virtual ~qpGeomVertexArrayData();
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INLINE const qpGeomVertexArrayFormat *get_array_format() const;
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INLINE UsageHint get_usage_hint() const;
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void set_usage_hint(UsageHint usage_hint);
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INLINE bool has_column(const InternalName *name) const;
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INLINE int get_num_rows() const;
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bool set_num_rows(int n);
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INLINE void clear_rows();
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INLINE int get_data_size_bytes() const;
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INLINE UpdateSeq get_modified() const;
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void output(ostream &out) const;
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void write(ostream &out, int indent_level = 0) const;
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public:
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INLINE CPTA_uchar get_data() const;
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PTA_uchar modify_data();
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void set_data(CPTA_uchar data);
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void prepare(PreparedGraphicsObjects *prepared_objects);
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public:
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VertexBufferContext *prepare_now(PreparedGraphicsObjects *prepared_objects,
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GraphicsStateGuardianBase *gsg);
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bool release(PreparedGraphicsObjects *prepared_objects);
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int release_all();
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private:
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void clear_prepared(PreparedGraphicsObjects *prepared_objects);
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CPT(qpGeomVertexArrayFormat) _array_format;
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// A GeomVertexArrayData keeps a list (actually, a map) of all the
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// PreparedGraphicsObjects tables that it has been prepared into.
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// Each PGO conversely keeps a list (a set) of all the Geoms that
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// have been prepared there. When either destructs, it removes
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// itself from the other's list.
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typedef pmap<PreparedGraphicsObjects *, VertexBufferContext *> Contexts;
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Contexts _contexts;
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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 void fillin(DatagramIterator &scan, BamReader *manager);
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UsageHint _usage_hint;
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PTA_uchar _data;
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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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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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static void write_raw_data(Datagram &dg, const PTA_uchar &data);
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static PTA_uchar read_raw_data(DatagramIterator &source);
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virtual int complete_pointers(TypedWritable **plist, 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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TypedWritableReferenceCount::init_type();
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register_type(_type_handle, "qpGeomVertexArrayData",
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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 qpGeomCacheManager;
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friend class qpGeomVertexData;
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friend class PreparedGraphicsObjects;
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};
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INLINE ostream &operator << (ostream &out, const qpGeomVertexArrayData &obj);
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#include "qpgeomVertexArrayData.I"
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#endif
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