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86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
// Filename: pipeline.h
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// Created by: drose (21Feb02)
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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 PIPELINE_H
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#define PIPELINE_H
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#include "pandabase.h"
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#include "namable.h"
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#include "pset.h"
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#include "reMutex.h"
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struct PipelineCyclerTrueImpl;
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////////////////////////////////////////////////////////////////////
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// Class : Pipeline
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// Description : This class manages a staged pipeline of data, for
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// instance the render pipeline, so that each stage of
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// the pipeline can simultaneously access different
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// copies of the same data. It actually maintains a
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// collection of PipelineCycler objects, and manages the
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// turning of all of them at once.
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//
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// There is one default Pipeline object, the render
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// pipeline. Other specialty pipelines may be created
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// as needed.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA Pipeline : public Namable {
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public:
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Pipeline(const string &name);
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~Pipeline();
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INLINE static Pipeline *get_render_pipeline();
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void cycle();
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void set_num_stages(int num_stages);
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INLINE void set_min_stages(int min_stages);
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INLINE int get_num_stages() const;
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#if defined(DO_PIPELINING) && defined(HAVE_THREADS)
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void add_cycler(PipelineCyclerTrueImpl *cycler);
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void add_dirty_cycler(PipelineCyclerTrueImpl *cycler);
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void remove_cycler(PipelineCyclerTrueImpl *cycler);
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INLINE int get_num_cyclers() const;
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INLINE int get_num_dirty_cyclers() const;
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#endif // DO_PIPELINING && HAVE_THREADS
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private:
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int _num_stages;
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static void make_render_pipeline();
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static Pipeline *_render_pipeline;
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#if defined(DO_PIPELINING) && defined(HAVE_THREADS)
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typedef pset<PipelineCyclerTrueImpl *> Cyclers;
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Cyclers _cyclers;
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Cyclers _dirty_cyclers;
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// This is true only during cycle().
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bool _cycling;
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ReMutex _lock;
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#endif // DO_PIPELINING && HAVE_THREADS
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};
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#include "pipeline.I"
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#endif
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