FGFS-4.1/OpenSceneGraph
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Changed osgUtil::RenderBin and osg::State to allow nesting of StateSet's associated with RenderBin's.

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This commit is contained in:
Robert Osfield 2007-01-27 11:13:01 +00:00
parent 8625598e00
commit 36330f7e40
2 changed files with 25 additions and 6 deletions
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13
include/osg/State
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@ -125,6 +125,18 @@ class OSG_EXPORT State : public Referenced
* Note, to return OpenGL to default state, one should do any state.popAllStatSets(); state.apply().*/
void popAllStateSets();
/** Get the number of StateSet's on the StateSet stack.*/
unsigned int getStateSetStackSize() { return _stateStateStack.size(); }
/** Pop StateSet's for the StateSet stack till its size equals the specified size.*/
void popStateSetStackToSize(unsigned int size) { while (_stateStateStack.size()>size) popStateSet(); }
typedef std::vector<const StateSet*> StateSetStack;
/** Get the StateSet stack.*/
StateSetStack& getStateSetStack() { return _stateStateStack; }
/** Copy the modes and attributes which capture the current state.*/
void captureCurrentState(StateSet& stateset) const;
@ -906,7 +918,6 @@ class OSG_EXPORT State : public Referenced
typedef std::map<std::string,UniformStack> UniformMap;
typedef std::vector<const StateSet*> StateSetStack;
typedef std::vector<ref_ptr<const Matrix> > MatrixStack;
typedef std::set<osg::ref_ptr<const Program::PerContextProgram> > AppliedProgramObjectSet;

16
src/osgUtil/RenderBin.cpp
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@ -367,11 +367,13 @@ void RenderBin::drawImplementation(osg::RenderInfo& renderInfo,RenderLeaf*& prev
// osg::notify(osg::NOTICE)<<"begin RenderBin::drawImplementation "<<className()<<" sortMode "<<getSortMode()<<std::endl;
unsigned int stateSetStackSize = state.getStateSetStackSize();
previous = 0;
if (_stateset.valid())
{
// first need to flush the stack
previous = 0;
state.popAllStateSets();
// now its safe to push RenderBin's StateSet as we now know its the root.
state.pushStateSet(_stateset.get());
@ -424,10 +426,16 @@ void RenderBin::drawImplementation(osg::RenderInfo& renderInfo,RenderLeaf*& prev
rbitr->second->draw(renderInfo,previous);
}
if (stateSetStackSize!=state.getStateSetStackSize())
{
state.popStateSetStackToSize(stateSetStackSize);
}
previous = 0;
if (_stateset.valid())
{
state.popAllStateSets();
previous = 0;
}
//osg::notify(osg::NOTICE)<<"end RenderBin::drawImplementation "<<className()<<std::endl;