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Introduce GraphicsOperation subclass from osg::Operation, and osgUtil::GLObjectOperation

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for compiling subgraphs.
This commit is contained in:
Robert Osfield 2007-07-13 17:25:35 +00:00
parent 65156475f6
commit a28588a84c
9 changed files with 99 additions and 57 deletions
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38
include/osg/GraphicsThread
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@ -18,6 +18,9 @@
namespace osg {
class GraphicsContext;
/** GraphicsThread is a helper class for running OpenGL GraphicsOperation within a single thread assigned to a specific GraphicsContext.*/
class OSG_EXPORT GraphicsThread : public osg::OperationThread
{
public:
@ -28,17 +31,30 @@ class OSG_EXPORT GraphicsThread : public osg::OperationThread
virtual void run();
};
struct OSG_EXPORT GraphicsOperation : public Operation
{
GraphicsOperation(const std::string& name, bool keep):
Operation(name,keep) {}
/** Override the standard Operation opertator and dynamic cast object to a GraphicsContext,
* on success call operation()(GraphicsContext*).*/
virtual void operator () (Object* object);
virtual void operator () (GraphicsContext* context) = 0;
};
/** SwapBufferOperation calls swap buffers on the GraphicsContext.*/
struct OSG_EXPORT SwapBuffersOperation : public Operation
struct OSG_EXPORT SwapBuffersOperation : public GraphicsOperation
{
SwapBuffersOperation():
Operation("SwapBuffers",true) {}
GraphicsOperation("SwapBuffers",true) {}
virtual void operator () (Object* context);
virtual void operator () (GraphicsContext* context);
};
/** BarrierOperation allows one to syncronize multiple GraphicsThreads with each other.*/
struct OSG_EXPORT BarrierOperation : public Operation, public OpenThreads::Barrier
struct OSG_EXPORT BarrierOperation : public GraphicsOperation, public OpenThreads::Barrier
{
enum PreBlockOp
{
@ -48,36 +64,36 @@ struct OSG_EXPORT BarrierOperation : public Operation, public OpenThreads::Barri
};
BarrierOperation(int numThreads, PreBlockOp op=NO_OPERATION):
Operation("Barrier", true),
GraphicsOperation("Barrier", true),
OpenThreads::Barrier(numThreads),
_preBlockOp(op) {}
virtual void release();
virtual void operator () (Object* context);
virtual void operator () (GraphicsContext* context);
PreBlockOp _preBlockOp;
};
/** ReleaseContext_Block_MakeCurrentOperation releases the context for another thread to aquire,
* then blocks waiting for context to be released, once the block is release the context is re-aqquired.*/
struct OSG_EXPORT ReleaseContext_Block_MakeCurrentOperation : public Operation, public RefBlock
struct OSG_EXPORT ReleaseContext_Block_MakeCurrentOperation : public GraphicsOperation, public RefBlock
{
ReleaseContext_Block_MakeCurrentOperation():
Operation("ReleaseContext_Block_MakeCurrent", false) {}
GraphicsOperation("ReleaseContext_Block_MakeCurrent", false) {}
virtual void release();
virtual void operator () (Object* context);
virtual void operator () (GraphicsContext* context);
};
struct OSG_EXPORT BlockAndFlushOperation : public Operation, public OpenThreads::Block
struct OSG_EXPORT BlockAndFlushOperation : public GraphicsOperation, public OpenThreads::Block
{
BlockAndFlushOperation();
virtual void release();
virtual void operator () (Object*);
virtual void operator () (GraphicsContext*);
};
}

2
include/osg/OperationThread
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@ -130,7 +130,7 @@ class OSG_EXPORT OperationQueue : public Referenced
OperationThreads _operationThreads;
};
/** GraphicsThread is a helper class for running OpenGL GraphicsOperation within a single thread assigned to a specific GraphicsContext.*/
/** OperationThread is a helper class for running Operation within a single thread.*/
class OSG_EXPORT OperationThread : public Referenced, public OpenThreads::Thread
{
public:

4
include/osgDB/DatabasePager
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@ -373,11 +373,11 @@ class OSGDB_EXPORT DatabasePager : public osg::NodeVisitor::DatabaseRequestHandl
double _minimumTimeAvailableForGLCompileAndDeletePerFrame;
unsigned int _maximumNumOfObjectsToCompilePerFrame;
struct CompileOperation : public osg::Operation
struct CompileOperation : public osg::GraphicsOperation
{
CompileOperation(DatabasePager* databasePager);
virtual void operator () (osg::Object* object);
virtual void operator () (osg::GraphicsContext* context);
osg::observer_ptr<DatabasePager> _databasePager;
};

14
include/osgUtil/GLObjectsVisitor
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@ -113,6 +113,20 @@ class OSGUTIL_EXPORT GLObjectsVisitor : public osg::NodeVisitor
};
class GLObjectsOperation : public osg::GraphicsOperation
{
public:
GLObjectsOperation(osg::Node* subgraph, GLObjectsVisitor::Mode mode = GLObjectsVisitor::COMPILE_DISPLAY_LISTS|GLObjectsVisitor::COMPILE_STATE_ATTRIBUTES|GLObjectsVisitor::CHECK_BLACK_LISTED_MODES);
virtual void operator () (osg::GraphicsContext* context);
protected:
osg::ref_ptr<osg::Node> _subgraph;
GLObjectsVisitor::Mode _mode;
};
}
#endif

40
src/osg/GraphicsThread.cpp
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@ -41,35 +41,16 @@ void GraphicsThread::run()
}
struct BlockOperation : public Operation, public Block
void GraphicsOperation::operator () (Object* object)
{
BlockOperation():
Operation("Block",false)
{
reset();
}
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
if (context) operator() (context);
}
virtual void release()
{
Block::release();
}
virtual void operator () (Object*)
{
glFlush();
Block::release();
}
};
void SwapBuffersOperation::operator () (Object* object)
void SwapBuffersOperation::operator () (GraphicsContext* context)
{
GraphicsContext* context = dynamic_cast<GraphicsContext*>(object);
if (context)
{
context->swapBuffersImplementation();
context->clear();
}
}
void BarrierOperation::release()
@ -77,7 +58,7 @@ void BarrierOperation::release()
Barrier::release();
}
void BarrierOperation::operator () (Object*)
void BarrierOperation::operator () (GraphicsContext*)
{
if (_preBlockOp==GL_FLUSH) glFlush();
if (_preBlockOp==GL_FINISH) glFinish();
@ -91,11 +72,8 @@ void ReleaseContext_Block_MakeCurrentOperation::release()
}
void ReleaseContext_Block_MakeCurrentOperation::operator () (Object* object)
void ReleaseContext_Block_MakeCurrentOperation::operator () (GraphicsContext* context)
{
GraphicsContext* context = dynamic_cast<GraphicsContext*>(object);
if (!context) return;
// release the graphics context.
context->releaseContext();
@ -111,7 +89,7 @@ void ReleaseContext_Block_MakeCurrentOperation::operator () (Object* object)
BlockAndFlushOperation::BlockAndFlushOperation():
Operation("Block",false)
GraphicsOperation("Block",false)
{
reset();
}
@ -121,7 +99,7 @@ void BlockAndFlushOperation::release()
Block::release();
}
void BlockAndFlushOperation::operator () (Object*)
void BlockAndFlushOperation::operator () (GraphicsContext*)
{
glFlush();
Block::release();

8
src/osgDB/DatabasePager.cpp
View File

@ -903,17 +903,15 @@ bool DatabasePager::getCompileGLObjectsForContextID(unsigned int contextID)
DatabasePager::CompileOperation::CompileOperation(osgDB::DatabasePager* databasePager):
osg::Operation("DatabasePager::CompileOperation",false),
osg::GraphicsOperation("DatabasePager::CompileOperation",false),
_databasePager(databasePager)
{
}
void DatabasePager::CompileOperation::operator () (osg::Object* object)
void DatabasePager::CompileOperation::operator () (osg::GraphicsContext* context)
{
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
if (!context) return;
// osg::notify(osg::NOTICE)<<"Background thread compiling"<<std::endl;
if (_databasePager.valid()) _databasePager->compileAllGLObjects(*(context->getState()));
}

16
src/osgUtil/GLObjectsVisitor.cpp
View File

@ -138,3 +138,19 @@ void GLObjectsVisitor::apply(osg::StateSet& stateset)
stateset.checkValidityOfAssociatedModes(*_renderInfo.getState());
}
}
GLObjectsOperation::GLObjectsOperation(osg::Node* subgraph, GLObjectsVisitor::Mode mode):
osg::GraphicsOperation("GLObjectOperation",false),
_subgraph(subgraph),
_mode(mode)
{
}
void GLObjectsOperation::operator () (osg::GraphicsContext* context)
{
GLObjectsVisitor glObjectsVisitor(_mode);
glObjectsVisitor.setState(context->getState());
_subgraph->accept(glObjectsVisitor);
}

20
src/osgWrappers/osg/GraphicsThread.cpp
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@ -10,6 +10,7 @@
#include <osgIntrospection/StaticMethodInfo>
#include <osgIntrospection/Attributes>
#include <osg/GraphicsContext>
#include <osg/GraphicsThread>
#include <osg/Object>
@ -30,7 +31,7 @@ END_REFLECTOR
BEGIN_OBJECT_REFLECTOR(osg::BarrierOperation)
I_DeclaringFile("osg/GraphicsThread");
I_BaseType(osg::Operation);
I_BaseType(osg::GraphicsOperation);
I_BaseType(OpenThreads::Barrier);
I_ConstructorWithDefaults2(IN, int, numThreads, , IN, osg::BarrierOperation::PreBlockOp, op, osg::BarrierOperation::NO_OPERATION,
____BarrierOperation__int__PreBlockOp,
@ -46,7 +47,7 @@ END_REFLECTOR
BEGIN_OBJECT_REFLECTOR(osg::BlockAndFlushOperation)
I_DeclaringFile("osg/GraphicsThread");
I_BaseType(osg::Operation);
I_BaseType(osg::GraphicsOperation);
I_BaseType(OpenThreads::Block);
I_Constructor0(____BlockAndFlushOperation,
"",
@ -58,6 +59,15 @@ BEGIN_OBJECT_REFLECTOR(osg::BlockAndFlushOperation)
"");
END_REFLECTOR
BEGIN_ABSTRACT_OBJECT_REFLECTOR(osg::GraphicsOperation)
I_DeclaringFile("osg/GraphicsThread");
I_BaseType(osg::Operation);
I_Constructor2(IN, const std::string &, name, IN, bool, keep,
____GraphicsOperation__C5_std_string_R1__bool,
"",
"");
END_REFLECTOR
BEGIN_OBJECT_REFLECTOR(osg::GraphicsThread)
I_DeclaringFile("osg/GraphicsThread");
I_BaseType(osg::OperationThread);
@ -73,7 +83,7 @@ END_REFLECTOR
BEGIN_OBJECT_REFLECTOR(osg::ReleaseContext_Block_MakeCurrentOperation)
I_DeclaringFile("osg/GraphicsThread");
I_BaseType(osg::Operation);
I_BaseType(osg::GraphicsOperation);
I_BaseType(osg::RefBlock);
I_Constructor0(____ReleaseContext_Block_MakeCurrentOperation,
"",
@ -81,13 +91,13 @@ BEGIN_OBJECT_REFLECTOR(osg::ReleaseContext_Block_MakeCurrentOperation)
I_Method0(void, release,
Properties::VIRTUAL,
__void__release,
"if this operation is a barrier then release it. ",
"",
"");
END_REFLECTOR
BEGIN_OBJECT_REFLECTOR(osg::SwapBuffersOperation)
I_DeclaringFile("osg/GraphicsThread");
I_BaseType(osg::Operation);
I_BaseType(osg::GraphicsOperation);
I_Constructor0(____SwapBuffersOperation,
"",
"");

10
src/osgWrappers/osgUtil/GLObjectsVisitor.cpp
View File

@ -12,6 +12,7 @@
#include <osg/Drawable>
#include <osg/Geode>
#include <osg/GraphicsContext>
#include <osg/Node>
#include <osg/RenderInfo>
#include <osg/State>
@ -26,6 +27,15 @@
#undef OUT
#endif
BEGIN_OBJECT_REFLECTOR(osgUtil::GLObjectsOperation)
I_DeclaringFile("osgUtil/GLObjectsVisitor");
I_BaseType(osg::GraphicsOperation);
I_ConstructorWithDefaults2(IN, osg::Node *, subgraph, , IN, osgUtil::GLObjectsVisitor::Mode, mode, osgUtil::GLObjectsVisitor::COMPILE_DISPLAY_LISTS|osgUtil::GLObjectsVisitor::COMPILE_STATE_ATTRIBUTES|osgUtil::GLObjectsVisitor::CHECK_BLACK_LISTED_MODES,
____GLObjectsOperation__osg_Node_P1__GLObjectsVisitor_Mode,
"",
"");
END_REFLECTOR
TYPE_NAME_ALIAS(unsigned int, osgUtil::GLObjectsVisitor::Mode)
BEGIN_ENUM_REFLECTOR(osgUtil::GLObjectsVisitor::ModeValues)