libopenscenegraph-dev 3.0.1-2 / usr / include / osgDB / SharedStateManager

This file is indexed.

/usr/include/osgDB/SharedStateManager is in libopenscenegraph-dev 3.0.1-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield 
 *
 * This library is open source and may be redistributed and/or modified under  
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * OpenSceneGraph Public License for more details.
*/

#ifndef    OSGDB_SHAREDSTATEMANAGER
#define OSGDB_SHAREDSTATEMANAGER 1
 

#include <osg/NodeVisitor>
#include <osg/Geode>

#include <osgDB/Export>

#include <OpenThreads/Mutex>

#include <set>


namespace osgDB {

    class OSGDB_EXPORT SharedStateManager : public osg::NodeVisitor
    {
    public: 

        enum ShareMode
        {
            SHARE_NONE                  = 0,
            SHARE_STATIC_TEXTURES       = 1<<0,
            SHARE_UNSPECIFIED_TEXTURES  = 1<<1,
            SHARE_DYNAMIC_TEXTURES      = 1<<2,
            SHARE_STATIC_STATESETS      = 1<<3,
            SHARE_UNSPECIFIED_STATESETS = 1<<4,
            SHARE_DYNAMIC_STATESETS     = 1<<5,
            SHARE_TEXTURES  = SHARE_STATIC_TEXTURES | SHARE_UNSPECIFIED_TEXTURES,
            SHARE_STATESETS = SHARE_STATIC_STATESETS | SHARE_UNSPECIFIED_STATESETS,
            SHARE_ALL       = SHARE_TEXTURES |
                              SHARE_STATESETS
        };

        SharedStateManager(unsigned int mode = SHARE_ALL);

        META_NodeVisitor("osgDB","SharedStateManager")
 
        void setShareMode(unsigned int mode);
        
        unsigned int getShareMode() { return _shareMode; }

        // Call right after each unload and before Registry cache prune.
        void prune();

        // Call right after each load
        void share(osg::Node *node, OpenThreads::Mutex *mt=0);

        void apply(osg::Node& node);
        void apply(osg::Geode& geode);

        // Answers the question "Will this state set be eliminated by
        // the SharedStateManager because an equivalent one has been
        // seen already?" Safe to call from the pager thread.
        bool isShared(osg::StateSet* stateSet);

        bool isShared(osg::Texture* texture);

        void releaseGLObjects(osg::State* state ) const;

    protected:

        inline bool shareTexture(osg::Object::DataVariance variance)
        {
            return _shareTexture[variance];
        }

        inline bool shareStateSet(osg::Object::DataVariance variance)
        {
            return _shareStateSet[variance];
        }


        void process(osg::StateSet* ss, osg::Object* parent);
        osg::StateAttribute *find(osg::StateAttribute *sa);
        osg::StateSet *find(osg::StateSet *ss);
        void setStateSet(osg::StateSet* ss, osg::Object* object);
        void shareTextures(osg::StateSet* ss);

        struct CompareStateAttributes
        {
            bool operator()(const osg::ref_ptr<osg::StateAttribute>& lhs,
                            const osg::ref_ptr<osg::StateAttribute>& rhs) const
            {
                return *lhs < *rhs;
            }
        };

        struct CompareStateSets
        {
            bool operator()(const osg::ref_ptr<osg::StateSet>& lhs,
                            const osg::ref_ptr<osg::StateSet>& rhs) const
            {
                return lhs->compare(*rhs, true) < 0;
            }
        };
        
        // Lists of shared objects
        typedef std::set< osg::ref_ptr<osg::StateAttribute>, CompareStateAttributes > TextureSet;
        TextureSet _sharedTextureList;

        typedef std::set< osg::ref_ptr<osg::StateSet>, CompareStateSets > StateSetSet;
        StateSetSet _sharedStateSetList;

        // Temporary lists just to avoid unnecessary find calls
        typedef std::pair<osg::StateAttribute*, bool> TextureSharePair;
        typedef std::map<osg::StateAttribute*, TextureSharePair> TextureTextureSharePairMap;
        TextureTextureSharePairMap tmpSharedTextureList;

        typedef std::pair<osg::StateSet*, bool> StateSetSharePair;
        typedef std::map<osg::StateSet*, StateSetSharePair> StateSetStateSetSharePairMap;
        StateSetStateSetSharePairMap tmpSharedStateSetList;

        unsigned int    _shareMode;
        bool            _shareTexture[3];
        bool            _shareStateSet[3];

        // Share connection mutex 

        OpenThreads::Mutex *_mutex;
        // Mutex for doing isShared queries from other threads
        mutable OpenThreads::Mutex _listMutex;
    };

}

#endif

APT Browse - Built by Thomas Orozco.