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Added IncrementalCompileOperation::compileAllForNextFrame(uint) method and supporting

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functionality that  tell the IncrementalCompileOperation to compile all pending objects during next draw traversal,
for specified number of frames.
This commit is contained in:
Robert Osfield 2011-04-18 12:35:19 +00:00
parent a74289614d
commit 8ffa50a88e
5 changed files with 61 additions and 21 deletions
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2
include/osg/Version
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@ -21,7 +21,7 @@ extern "C" {
#define OPENSCENEGRAPH_MAJOR_VERSION 2
#define OPENSCENEGRAPH_MINOR_VERSION 9
#define OPENSCENEGRAPH_PATCH_VERSION 12
#define OPENSCENEGRAPH_SOVERSION 72
#define OPENSCENEGRAPH_SOVERSION 73
/* Convenience macro that can be used to decide whether a feature is present or not i.e.
* #if OSG_MIN_VERSION_REQUIRED(2,9,5)

37
include/osgUtil/IncrementalCompileOperation
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@ -134,7 +134,26 @@ class OSGUTIL_EXPORT IncrementalCompileOperation : public osg::GraphicsOperation
/** Merge subgraphs that have been compiled.*/
void mergeCompiledSubgraphs();
void mergeCompiledSubgraphs(const osg::FrameStamp* frameStamp);
/** Set the current frame number that the IncrementalCompileOperation should use as a reference
* value for calculations based on current frame number.
* Note, this value is set by the mergeCompiledSubgraphs(..) method so one won't normally need to call
* set the CurrentFrameNumber manually.*/
void setCurrentFrameNumber(unsigned int fn) { _currentFrameNumber = fn; }
unsigned int getCurrentFrameNumber() const { return _currentFrameNumber; }
/** tell the IncrementalCompileOperation to compile all pending objects during next draw traversal,
* for specified number of frames.*/
void compileAllForNextFrame(unsigned int numFramesToDoCompileAll=1);
/** tell the IncrementalCompileOperation to compile all pending objects during next draw traversal,
* till specified frame number.*/
void setCompileAllTillFrameNumber(unsigned int fn) { _compileAllTillFrameNumber = fn; }
unsigned int getCompileAllTillFrameNumber() const { return _compileAllTillFrameNumber; }
virtual void operator () (osg::GraphicsContext* context);
@ -142,12 +161,19 @@ class OSGUTIL_EXPORT IncrementalCompileOperation : public osg::GraphicsOperation
{
CompileInfo(osg::GraphicsContext* context, IncrementalCompileOperation* ico);
double availableTime() { return allocatedTime - timer.elapsedTime(); }
bool okToCompile(double estimatedTimeForCompile=0.0) const
{
if (compileAll) return true;
if (maxNumObjectsToCompile==0) return false;
return (allocatedTime - timer.elapsedTime()) >= estimatedTimeForCompile;
}
IncrementalCompileOperation* incrementalCompileOperation;
bool compileAll;
unsigned int maxNumObjectsToCompile;
osg::ElapsedTime timer;
double allocatedTime;
osg::ElapsedTime timer;
};
struct CompileOp : public osg::Referenced
@ -257,7 +283,6 @@ class OSGUTIL_EXPORT IncrementalCompileOperation : public osg::GraphicsOperation
/** Remove CompileSet from list.*/
void remove(CompileSet* compileSet);
OpenThreads::Mutex* getToCompiledMutex() { return &_toCompileMutex; }
CompileSets& getToCompile() { return _toCompile; }
@ -268,13 +293,15 @@ class OSGUTIL_EXPORT IncrementalCompileOperation : public osg::GraphicsOperation
virtual ~IncrementalCompileOperation();
double _targetFrameRate;
double _minimumTimeAvailableForGLCompileAndDeletePerFrame;
unsigned int _maximumNumOfObjectsToCompilePerFrame;
double _flushTimeRatio;
double _conservativeTimeRatio;
unsigned int _currentFrameNumber;
unsigned int _compileAllTillFrameNumber;
osg::ref_ptr<osg::Geometry> _forceTextureDownloadGeometry;
OpenThreads::Mutex _toCompileMutex;

25
src/osgUtil/IncrementalCompileOperation.cpp
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@ -301,7 +301,10 @@ bool IncrementalCompileOperation::CompileProgramOp::compile(CompileInfo& compile
return true;
}
IncrementalCompileOperation::CompileInfo::CompileInfo(osg::GraphicsContext* context, IncrementalCompileOperation* ico)
IncrementalCompileOperation::CompileInfo::CompileInfo(osg::GraphicsContext* context, IncrementalCompileOperation* ico):
compileAll(false),
maxNumObjectsToCompile(0),
allocatedTime(0)
{
setState(context->getState());
incrementalCompileOperation = ico;
@ -342,7 +345,7 @@ bool IncrementalCompileOperation::CompileList::compile(CompileInfo& compileInfo)
//#define USE_TIME_ESTIMATES
for(CompileOps::iterator itr = _compileOps.begin();
itr != _compileOps.end() && compileInfo.availableTime()>0.0 && compileInfo.maxNumObjectsToCompile>0;
itr != _compileOps.end() && compileInfo.okToCompile();
)
{
#ifdef USE_TIME_ESTIMATES
@ -444,7 +447,9 @@ bool IncrementalCompileOperation::CompileSet::compile(CompileInfo& compileInfo)
IncrementalCompileOperation::IncrementalCompileOperation():
osg::GraphicsOperation("IncrementalCompileOperation",true),
_flushTimeRatio(0.5),
_conservativeTimeRatio(0.5)
_conservativeTimeRatio(0.5),
_currentFrameNumber(0),
_compileAllTillFrameNumber(0)
{
_targetFrameRate = 100.0;
_minimumTimeAvailableForGLCompileAndDeletePerFrame = 0.001; // 1ms.
@ -623,12 +628,14 @@ void IncrementalCompileOperation::remove(CompileSet* compileSet)
}
void IncrementalCompileOperation::mergeCompiledSubgraphs()
void IncrementalCompileOperation::mergeCompiledSubgraphs(const osg::FrameStamp* frameStamp)
{
// OSG_INFO<<"IncrementalCompileOperation::mergeCompiledSubgraphs()"<<std::endl;
OpenThreads::ScopedLock<OpenThreads::Mutex> compilded_lock(_compiledMutex);
if (frameStamp) _currentFrameNumber = frameStamp->getFrameNumber();
for(CompileSets::iterator itr = _compiled.begin();
itr != _compiled.end();
++itr)
@ -673,7 +680,6 @@ void IncrementalCompileOperation::operator () (osg::GraphicsContext* context)
double flushTime = availableTime * _flushTimeRatio;
double compileTime = availableTime - flushTime;
unsigned int maxNumOfObjectsToCompilePerFrame = _maximumNumOfObjectsToCompilePerFrame;
#if 1
OSG_NOTIFY(level)<<"total availableTime = "<<availableTime*1000.0<<std::endl;
@ -696,6 +702,7 @@ void IncrementalCompileOperation::operator () (osg::GraphicsContext* context)
CompileInfo compileInfo(context, this);
compileInfo.maxNumObjectsToCompile = _maximumNumOfObjectsToCompilePerFrame;
compileInfo.allocatedTime = compileTime;
compileInfo.compileAll = (_compileAllTillFrameNumber > _currentFrameNumber);
CompileSets toCompileCopy;
{
@ -704,7 +711,7 @@ void IncrementalCompileOperation::operator () (osg::GraphicsContext* context)
}
for(CompileSets::iterator itr = toCompileCopy.begin();
itr != toCompileCopy.end() && compileTime>0.0 && maxNumOfObjectsToCompilePerFrame>0;
itr != toCompileCopy.end() && compileInfo.okToCompile();
++itr)
{
CompileSet* cs = itr->get();
@ -738,4 +745,10 @@ void IncrementalCompileOperation::operator () (osg::GraphicsContext* context)
//glFinish();
}
void IncrementalCompileOperation::compileAllForNextFrame(unsigned int numFramesToDoCompileAll)
{
_compileAllTillFrameNumber = _currentFrameNumber+numFramesToDoCompileAll;
}
} // end of namespace osgUtil

2
src/osgViewer/CompositeViewer.cpp
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@ -1075,7 +1075,7 @@ void CompositeViewer::updateTraversal()
if (_incrementalCompileOperation.valid())
{
// merge subgraphs that have been compiled by the incremental compiler operation.
_incrementalCompileOperation->mergeCompiledSubgraphs();
_incrementalCompileOperation->mergeCompiledSubgraphs(getFrameStamp());
}
if (_updateOperations.valid())

2
src/osgViewer/Viewer.cpp
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@ -983,7 +983,7 @@ void Viewer::updateTraversal()
if (_incrementalCompileOperation.valid())
{
// merge subgraphs that have been compiled by the incremental compiler operation.
_incrementalCompileOperation->mergeCompiledSubgraphs();
_incrementalCompileOperation->mergeCompiledSubgraphs(getFrameStamp());
}
{