FGFS-4.1/OpenSceneGraph
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Began work on providing support for threading camera cull traversals in parallel with

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the previous frames draw traversal.  Changes range from osg::State, through osgUtil::RenderBin, through to osgViewer
This commit is contained in:
Robert Osfield
2007-01-29 22:44:29 +00:00
parent 6835996c21
commit fd0ea388c2
18 changed files with 387 additions and 26 deletions
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44
include/osg/State
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@@ -753,6 +753,47 @@ class OSG_EXPORT State : public Referenced
* if true steps should be taken to complete rendering early.*/
bool getAbortRendering() const { return _abortRenderingPtr!=0?(*_abortRenderingPtr):false; }
struct DynamicObjectRenderingCompletedCallback : public osg::Referenced
{
virtual void completed(osg::State*) = 0;
};
/** Set the callback to be called when the dynamic object count hits 0.*/
void setDynamicObjectRenderingCompletedCallback(DynamicObjectRenderingCompletedCallback* cb){ _completeDynamicObjectRenderingCallback = cb; }
/** Get the callback to be called when the dynamic object count hits 0.*/
DynamicObjectRenderingCompletedCallback* getDynamicObjectRenderingCompletedCallback() { return _completeDynamicObjectRenderingCallback.get(); }
/** Set the number of dynamic objects that will be rendered in this graphics context this frame.*/
void setDynamicObjectCount(unsigned int count, bool callCallbackOnZero = false)
{
if (_dynamicObjectCount != count)
{
_dynamicObjectCount = count;
if (_dynamicObjectCount==0 && callCallbackOnZero && _completeDynamicObjectRenderingCallback.valid())
{
_completeDynamicObjectRenderingCallback->completed(this);
}
}
}
/** Get the number of dynamic objects that will be rendered in this graphics context this frame.*/
unsigned int getDynamicObjectCount() const { return _dynamicObjectCount; }
/** Decrement the number of dynamic objects left to render this frame, and once the count goes to zero call the
* DynamicObjectRenderingCompletedCallback to inform of completion.*/
inline void decrementDynamicObjectCount()
{
--_dynamicObjectCount;
if (_dynamicObjectCount==0 && _completeDynamicObjectRenderingCallback.valid())
{
_completeDynamicObjectRenderingCallback->completed(this);
}
}
enum CheckForGLErrors
{
/** NEVER_CHECK_GL_ERRORS hints that OpenGL need not be checked for, this
@@ -1028,6 +1069,9 @@ class OSG_EXPORT State : public Referenced
DisableVertexAttribProc _glDisableVertexAttribArray;
void initializeExtensionProcs();
unsigned int _dynamicObjectCount;
osg::ref_ptr<DynamicObjectRenderingCompletedCallback> _completeDynamicObjectRenderingCallback;
};
inline void State::pushModeList(ModeMap& modeMap,const StateSet::ModeList& modeList)