/usr/include/simgear/scene/material/Effect.hxx is in libsimgear-dev 3.4.0-3.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | // Copyright (C) 2008 - 2009 Tim Moore timoore@redhat.com
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// 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 GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#ifndef SIMGEAR_EFFECT_HXX
#define SIMGEAR_EFFECT_HXX 1
#include <vector>
#include <string>
#include <boost/tr1/unordered_map.hpp>
#include <boost/functional/hash.hpp>
#include <osg/Object>
#include <osg/observer_ptr>
#include <osgDB/ReaderWriter>
#include <simgear/props/props.hxx>
#include <simgear/scene/util/UpdateOnceCallback.hxx>
namespace osg
{
class Drawable;
class StateSet;
class RenderInfo;
}
namespace osgUtil
{
class CullVisitor;
}
namespace simgear
{
class Technique;
class Effect;
class SGReaderWriterOptions;
/**
* Object to be initialized at some point after an effect -- and its
* containing effect geode -- are hooked into the scene graph. Some
* things, like manipulations of the global property tree, are are
* only safe in the update process.
*/
class DeferredPropertyListener {
public:
virtual void activate(SGPropertyNode* propRoot) {};
virtual ~DeferredPropertyListener() {};
};
class Effect : public osg::Object
{
public:
META_Object(simgear,Effect)
Effect();
Effect(const Effect& rhs,
const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY);
osg::StateSet* getDefaultStateSet();
// Define what needs to be generated for this effect
enum Generator
{
NORMAL,
TANGENT,
BINORMAL
};
void setGenerator(Generator what, int where) { generator[what] = where; }
int getGenerator(Generator what) const; // Returns -1 if generator should not be used
std::map<Generator, int> generator; // What is generated into which attribute location
std::vector<osg::ref_ptr<Technique> > techniques;
SGPropertyNode_ptr root;
// Pointer to the parameters node, if it exists
SGPropertyNode_ptr parametersProp;
Technique* chooseTechnique(osg::RenderInfo* renderInfo);
virtual void resizeGLObjectBuffers(unsigned int maxSize);
virtual void releaseGLObjects(osg::State* state = 0) const;
/**
* Build the techniques from the effect properties.
*/
bool realizeTechniques(const SGReaderWriterOptions* options = 0);
void addDeferredPropertyListener(DeferredPropertyListener* listener);
// Callback that is added to the effect geode to initialize the
// effect.
friend struct InitializeCallback;
struct InitializeCallback : public UpdateOnceCallback
{
void doUpdate(osg::Node* node, osg::NodeVisitor* nv);
};
std::string getName(){return _name;}
void setName(std::string name){_name = name;}
protected:
~Effect();
// Support for a cache of effects that inherit from this one, so
// Effect objects with the same parameters and techniques can be
// shared.
struct Key
{
Key() {}
Key(SGPropertyNode* unmerged_, const osgDB::FilePathList& paths_)
: unmerged(unmerged_), paths(paths_)
{
}
Key& operator=(const Key& rhs)
{
unmerged = rhs.unmerged;
paths = rhs.paths;
return *this;
}
SGPropertyNode_ptr unmerged;
osgDB::FilePathList paths;
struct EqualTo
{
bool operator()(const Key& lhs, const Key& rhs) const;
};
};
typedef std::tr1::unordered_map<Key, osg::observer_ptr<Effect>,
boost::hash<Key>, Key::EqualTo> Cache;
Cache* getCache()
{
if (!_cache)
_cache = new Cache;
return _cache;
}
Cache* _cache;
friend size_t hash_value(const Key& key);
friend Effect* makeEffect(SGPropertyNode* prop, bool realizeTechniques,
const SGReaderWriterOptions* options);
bool _isRealized;
std::string _name;
};
// Automatic support for boost hash function
size_t hash_value(const Effect::Key&);
Effect* makeEffect(const std::string& name,
bool realizeTechniques,
const SGReaderWriterOptions* options);
Effect* makeEffect(SGPropertyNode* prop,
bool realizeTechniques,
const SGReaderWriterOptions* options);
bool makeParametersFromStateSet(SGPropertyNode* paramRoot,
const osg::StateSet* ss);
void clearEffectCache();
namespace effect
{
/**
* The function that implements effect property tree inheritance.
*/
void mergePropertyTrees(SGPropertyNode* resultNode,
const SGPropertyNode* left,
const SGPropertyNode* right);
}
}
#endif
|