Moved the ArrayDispatchers management so that osg::State now has a ArrayDispatchers object that any osg::Geometry can reuse,

and optimized the implementation to reduce the CPU overhead.

include/osg/ArrayDispatchers

@@ -17,12 +17,12 @@
 #include <osg/ref_ptr>
 #include <osg/Array>
 #include <osg/Matrixd>
+#include <osg/GLBeginEndAdapter>
 
 namespace osg {
 
 // forward declare
 class State;
-class GLBeginEndAdapter;
 class AttributeDispatchMap;
 
 struct AttributeDispatch : public osg::Referenced
@@ -36,11 +36,10 @@ class OSG_EXPORT ArrayDispatchers : public osg::Referenced
 {
     public:
 
-        ArrayDispatchers(osg::State& state);
+        ArrayDispatchers();
         ~ArrayDispatchers();
 
-        void assignTexCoordDispatchers(unsigned int unit);
+        void setState(osg::State* state);
-        void assignVertexAttribDispatchers(unsigned int unit);
 
         AttributeDispatch* vertexDispatcher(Array* array, IndexArray* indices);
         AttributeDispatch* normalDispatcher(Array* array, IndexArray* indices);
@@ -55,24 +54,52 @@ class OSG_EXPORT ArrayDispatchers : public osg::Referenced
         void setUseGLBeginEndAdapter(bool flag) { _useGLBeginEndAdapter = flag; }
         bool getUseGLBeginEndAdapter() const { return _useGLBeginEndAdapter; }
 
-        void activate(unsigned int binding, AttributeDispatch* at);
+        void activate(unsigned int binding, AttributeDispatch* at)
+        {
+            if (at) _activeDispatchList[binding].push_back(at);
+        }
 
-        void activateVertexArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { activate(binding, vertexDispatcher(array, indices)); }
+        void activateVertexArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, vertexDispatcher(array, indices)); }
-        void activateColorArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { activate(binding, colorDispatcher(array, indices)); }
+        void activateColorArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, colorDispatcher(array, indices)); }
-        void activateNormalArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { activate(binding, normalDispatcher(array, indices)); }
+        void activateNormalArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, normalDispatcher(array, indices)); }
-        void activateSecondaryColorArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { activate(binding, secondaryColorDispatcher(array, indices)); }
+        void activateSecondaryColorArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, secondaryColorDispatcher(array, indices)); }
-        void activateFogCoordArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { activate(binding, fogCoordDispatcher(array, indices)); }
+        void activateFogCoordArray(unsigned int binding, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, fogCoordDispatcher(array, indices)); }
-        void activateTexCoordArray(unsigned int binding, unsigned int unit, osg::Array* array, osg::IndexArray* indices) { activate(binding, texCoordDispatcher(unit, array, indices)); }
+        void activateTexCoordArray(unsigned int binding, unsigned int unit, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, texCoordDispatcher(unit, array, indices)); }
-        void activateVertexAttribArray(unsigned int binding, unsigned int unit, osg::Array* array, osg::IndexArray* indices) { activate(binding, vertexAttribDispatcher(unit, array, indices)); }
+        void activateVertexAttribArray(unsigned int binding, unsigned int unit, osg::Array* array, osg::IndexArray* indices) { if (binding && array) activate(binding, vertexAttribDispatcher(unit, array, indices)); }
 
-        void dispatch(unsigned int binding);
+        void dispatch(unsigned int binding, unsigned int index)
-        void dispatch(unsigned int binding, unsigned int index);
+        {
+            AttributeDispatchList& ad = _activeDispatchList[binding];
+            for(AttributeDispatchList::iterator itr = ad.begin();
+                itr != ad.end();
+                ++itr)
+            {
+                (*(*itr))(index);
+            }
+        }
 
-        void Begin(GLenum mode);
+        bool active(unsigned int binding) const { return !_activeDispatchList[binding].empty(); }
-        void End();
+
+        void Begin(GLenum mode)
+        {
+            if (_useGLBeginEndAdapter) _glBeginEndAdapter->Begin(mode);
+            else ::glBegin(mode);
+        }
+
+        void End()
+        {
+            if (_useGLBeginEndAdapter) _glBeginEndAdapter->End();
+            else ::glEnd();
+        }
 
     protected:
 
+        void init();
+
+        void assignTexCoordDispatchers(unsigned int unit);
+        void assignVertexAttribDispatchers(unsigned int unit);
+
+        bool                  _initialized;
         State*                _state;
         GLBeginEndAdapter*    _glBeginEndAdapter;
 
@@ -88,19 +115,12 @@ class OSG_EXPORT ArrayDispatchers : public osg::Referenced
 
         typedef std::vector<AttributeDispatch*> AttributeDispatchList;
 
-        struct BindingGroup
+        typedef std::vector<AttributeDispatchList> ActiveDispatchList;
-        {
+        ActiveDispatchList    _activeDispatchList;
-            unsigned int          _index;
-            AttributeDispatchList _attributeDispatchList;
-        };
-
-        typedef std::vector<BindingGroup> BindingGroupList;
-        BindingGroupList    _bindingGroupList;
 
         bool                _useGLBeginEndAdapter;
 };
 
-
 }
 
 #endif

include/osg/Drawable

@@ -73,6 +73,7 @@ class Vec4f;
 class Vec4ub;
 class Geometry;
 class NodeVisitor;
+class ArrayDispatchers;
 
 // this is defined to alter the way display lists are compiled inside the
 // the draw method, it has been found that the NVidia drivers fail completely
@@ -666,7 +667,9 @@ class OSG_EXPORT Drawable : public Object
             void glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params) const;
             void glGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64EXT *params) const;
 
-        public:
+        protected:
+
+            friend class ArrayDispatchers;
 
             typedef void (APIENTRY * FogCoordProc) (const GLfloat* coord);
 

include/osg/State

@@ -26,6 +26,7 @@
 #include <osg/Polytope>
 #include <osg/Viewport>
 #include <osg/GLBeginEndAdapter>
+#include <osg/ArrayDispatchers>
 
 #include <vector>
 #include <map>
@@ -1246,6 +1247,8 @@ class OSG_EXPORT State : public Referenced, public Observer
         /** get the GL adapter object used to map OpenGL 1.0 glBegin/glEnd usage to vertex arrays.*/
         inline GLBeginEndAdapter& getGLBeginEndAdapter() { return _glBeginEndAdapter; }
 
+        /** get the helper class for dispatching osg::Arrays as OpenGL attribute data.*/
+        inline ArrayDispatchers& getArrayDispatchers() { return _arrayDispatchers; }
 
     protected:
 
@@ -1558,6 +1561,7 @@ class OSG_EXPORT State : public Referenced, public Observer
         osg::ref_ptr<DynamicObjectRenderingCompletedCallback>   _completeDynamicObjectRenderingCallback;
 
         GLBeginEndAdapter           _glBeginEndAdapter;
+        ArrayDispatchers            _arrayDispatchers;
 
 };
 

src/osg/ArrayDispatchers.cpp

@@ -345,15 +345,62 @@ public:
     AttributeDispatchList               _glBeginEndAttributeDispatchWithIndicesList;
 };
 
-ArrayDispatchers::ArrayDispatchers(osg::State& state):
+ArrayDispatchers::ArrayDispatchers():
-    _state(&state),
+    _initialized(false),
-    _vertexDispatchers(new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()))),
+    _state(0),
-    _normalDispatchers(new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()))),
+    _glBeginEndAdapter(0),
-    _colorDispatchers(new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()))),
+    _vertexDispatchers(0),
-    _secondaryColorDispatchers(new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()))),
+    _normalDispatchers(0),
-    _fogCoordDispatchers(new AttributeDispatchMap(&(_state->getGLBeginEndAdapter())))
+    _colorDispatchers(0),
+    _secondaryColorDispatchers(0),
+    _fogCoordDispatchers(0),
+    _useGLBeginEndAdapter(false)
 {
-    Drawable::Extensions* extensions = Drawable::getExtensions(state.getContextID(),true);
+
+}
+
+ArrayDispatchers::~ArrayDispatchers()
+{
+    delete _vertexDispatchers;
+    delete _normalDispatchers;
+    delete _colorDispatchers;
+    delete _secondaryColorDispatchers;
+    delete _fogCoordDispatchers;
+
+    for(AttributeDispatchMapList::iterator itr = _texCoordDispatchers.begin();
+        itr != _texCoordDispatchers.end();
+        ++itr)
+    {
+        delete *itr;
+    }
+
+    for(AttributeDispatchMapList::iterator itr = _vertexAttribDispatchers.begin();
+        itr != _vertexAttribDispatchers.end();
+        ++itr)
+    {
+        delete *itr;
+    }
+}
+
+void ArrayDispatchers::setState(osg::State* state)
+{
+    _state = state;
+    _glBeginEndAdapter = &(state->getGLBeginEndAdapter());
+}
+
+void ArrayDispatchers::init()
+{
+    if (_initialized) return;
+
+    _initialized = true;
+
+    _vertexDispatchers = new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()));
+    _normalDispatchers = new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()));
+    _colorDispatchers = new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()));
+    _secondaryColorDispatchers  = new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()));
+    _fogCoordDispatchers = new AttributeDispatchMap(&(_state->getGLBeginEndAdapter()));
+
+    Drawable::Extensions* extensions = Drawable::getExtensions(_state->getContextID(),true);
     _glBeginEndAdapter = &(_state->getGLBeginEndAdapter());
     _useGLBeginEndAdapter = false;
 
@@ -378,10 +425,9 @@ ArrayDispatchers::ArrayDispatchers(osg::State& state):
     _secondaryColorDispatchers->assign<GLfloat>(Array::Vec3ArrayType, extensions->_glSecondaryColor3fv, 3);
 
     _fogCoordDispatchers->assign<GLfloat>(Array::FloatArrayType, extensions->_glFogCoordfv, 1);
-}
 
-ArrayDispatchers::~ArrayDispatchers()
+    // pre allocate.
-{
+    _activeDispatchList.resize(5);
 }
 
 AttributeDispatch* ArrayDispatchers::vertexDispatcher(Array* array, IndexArray* indices) { return _vertexDispatchers->dispatcher(_useGLBeginEndAdapter, array, indices);  }
@@ -452,70 +498,16 @@ void ArrayDispatchers::assignVertexAttribDispatchers(unsigned int unit)
 
 void ArrayDispatchers::reset()
 {
+    if (!_initialized) init();
+
     _useGLBeginEndAdapter = false;
 
-    for(BindingGroupList::iterator itr = _bindingGroupList.begin();
+    for(ActiveDispatchList::iterator itr = _activeDispatchList.begin();
-        itr != _bindingGroupList.end();
+        itr != _activeDispatchList.end();
         ++itr)
     {
-        itr->_index = 0;
+        (*itr).clear();
-        itr->_attributeDispatchList.clear();
     }
 }
 
-void ArrayDispatchers::activate(unsigned int binding, AttributeDispatch* at)
-{
-    if (!at) return;
-
-    if (binding>=_bindingGroupList.size()) _bindingGroupList.resize(binding+1);
-
-    BindingGroup& bindingGroup = _bindingGroupList[binding];
-    bindingGroup._attributeDispatchList.push_back(at);
 }
-
-void ArrayDispatchers::dispatch(unsigned int binding, unsigned int index)
-{
-    if (binding>=_bindingGroupList.size()) return;
-
-    BindingGroup& bg = _bindingGroupList[binding];
-    for(AttributeDispatchList::iterator itr = bg._attributeDispatchList.begin();
-        itr != bg._attributeDispatchList.end();
-        ++itr)
-    {
-        AttributeDispatch* at = *itr;
-        (*at)(index);
-    }
-}
-
-void ArrayDispatchers::dispatch(unsigned int binding)
-{
-    if (binding>=_bindingGroupList.size()) return;
-
-    BindingGroup& bg = _bindingGroupList[binding];
-    unsigned int index = bg._index;
-    for(AttributeDispatchList::iterator itr = bg._attributeDispatchList.begin();
-        itr != bg._attributeDispatchList.end();
-        ++itr)
-    {
-        AttributeDispatch* at = *itr;
-        (*at)(index);
-    }
-
-    // advance the index so that it's ready for the next dispatch
-    ++(bg._index);
-}
-
-void ArrayDispatchers::Begin(GLenum mode)
-{
-    if (_useGLBeginEndAdapter) _glBeginEndAdapter->Begin(mode);
-    else ::glBegin(mode);
-}
-
-void ArrayDispatchers::End()
-{
-    if (_useGLBeginEndAdapter) _glBeginEndAdapter->End();
-    else ::glEnd();
-}
-
-}
-

src/osg/Geometry.cpp

@@ -20,6 +20,9 @@ using namespace osg;
 
 const Geometry::ArrayData Geometry::s_InvalidArrayData;
 
+// #define USE_OLD_DRAW_IMPLEMENTATOIN
+
+#ifdef USE_OLD_DRAW_IMPLEMENTATOIN
 class DrawVertex
 {
     public:
@@ -394,6 +397,8 @@ class DrawFogCoord : public osg::ConstValueVisitor
 
         const Drawable::Extensions * _extensions;
 };
+#endif
+
 
 Geometry::ArrayData::ArrayData(const ArrayData& data,const CopyOp& copyop):
     array(copyop(data.array.get())),
@@ -414,7 +419,7 @@ Geometry::Vec3ArrayData::Vec3ArrayData(const Vec3ArrayData& data,const CopyOp& c
 Geometry::Geometry()
 {
     // temporary test
-    // setSupportsDisplayList(false);
+    setSupportsDisplayList(false);
 
     _fastPath = false;
     _fastPathHint = true;
@@ -431,7 +436,7 @@ Geometry::Geometry(const Geometry& geometry,const CopyOp& copyop):
     _fastPathHint(geometry._fastPathHint)
 {
     // temporary test
-    // setSupportsDisplayList(false);
+    setSupportsDisplayList(false);
 
     for(PrimitiveSetList::const_iterator pitr=geometry._primitives.begin();
         pitr!=geometry._primitives.end();
@@ -1279,7 +1284,7 @@ void Geometry::releaseGLObjects(State* state) const
 
 }
 
-#if 1
+#ifndef USE_OLD_DRAW_IMPLEMENTATOIN
 void Geometry::drawImplementation(RenderInfo& renderInfo) const
 {
     State& state = *renderInfo.getState();
@@ -1290,34 +1295,26 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
     bool usingVertexBufferObjects = _useVertexBufferObjects && state.isVertexBufferObjectSupported();
     bool handleVertexAttributes = !_vertexAttribList.empty() && extensions->isVertexProgramSupported();
 
-    osg::ref_ptr<ArrayDispatchers> s_ArrayDispatchers = 0;
+    ArrayDispatchers& arrayDispatchers = state.getArrayDispatchers();
-    if (!s_ArrayDispatchers) s_ArrayDispatchers = new ArrayDispatchers(state);
-
-    ArrayDispatchers& arrayDispatchers = *s_ArrayDispatchers;
 
     arrayDispatchers.reset();
-    arrayDispatchers.setUseGLBeginEndAdapter(!useFastPath);
+    // arrayDispatchers.setUseGLBeginEndAdapter(!useFastPath);
 
     arrayDispatchers.activateNormalArray(_normalData.binding, _normalData.array.get(), _normalData.indices.get());
     arrayDispatchers.activateColorArray(_colorData.binding, _colorData.array.get(), _colorData.indices.get());
     arrayDispatchers.activateSecondaryColorArray(_secondaryColorData.binding, _secondaryColorData.array.get(), _secondaryColorData.indices.get());
     arrayDispatchers.activateFogCoordArray(_fogCoordData.binding, _fogCoordData.array.get(), _fogCoordData.indices.get());
 
-    for(unsigned int unit=0;unit<_texCoordList.size();++unit)
+    if (handleVertexAttributes)
     {
-        arrayDispatchers.activateTexCoordArray(BIND_PER_VERTEX, unit, _texCoordList[unit].array.get(), _texCoordList[unit].indices.get());
+        for(unsigned int unit=0;unit<_vertexAttribList.size();++unit)
+        {
+            arrayDispatchers.activateVertexAttribArray(_vertexAttribList[unit].binding, unit, _vertexAttribList[unit].array.get(), _vertexAttribList[unit].indices.get());
+        }
     }
 
-    for(unsigned int unit=0;unit<_vertexAttribList.size();++unit)
-    {
-        arrayDispatchers.activateVertexAttribArray(_vertexAttribList[unit].binding, unit, _vertexAttribList[unit].array.get(), _vertexAttribList[unit].indices.get());
-    }
-
-    arrayDispatchers.activateVertexArray(BIND_PER_VERTEX, _vertexData.array.get(), _vertexData.indices.get());
-
-
     // dispatch any attributes that are bound overall
-    arrayDispatchers.dispatch(BIND_OVERALL);
+    arrayDispatchers.dispatch(BIND_OVERALL,0);
 
     state.lazyDisablingOfVertexAttributes();
 
@@ -1358,21 +1355,34 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
             }
         }
     }
+    else
+    {
+        for(unsigned int unit=0;unit<_texCoordList.size();++unit)
+        {
+            arrayDispatchers.activateTexCoordArray(BIND_PER_VERTEX, unit, _texCoordList[unit].array.get(), _texCoordList[unit].indices.get());
+        }
+
+        arrayDispatchers.activateVertexArray(BIND_PER_VERTEX, _vertexData.array.get(), _vertexData.indices.get());
+    }
 
     state.applyDisablingOfVertexAttributes();
 
+    bool bindPerPrimtiveSetActive = arrayDispatchers.active(BIND_PER_PRIMITIVE_SET);
+    bool bindPerPrimtiveActive = arrayDispatchers.active(BIND_PER_PRIMITIVE);
+
+    unsigned int primitiveNum = 0;
+
     ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
     //
     // draw the primitives themselves.
     //
-    for(PrimitiveSetList::const_iterator itr=_primitives.begin();
+    for(unsigned int primitiveSetNum=0; primitiveSetNum!=_primitives.size(); ++primitiveSetNum)
-        itr!=_primitives.end();
-        ++itr)
     {
-        // dispatch any attributes that are bound per primitive
-        arrayDispatchers.dispatch(BIND_PER_PRIMITIVE_SET);
 
-        const PrimitiveSet* primitiveset = itr->get();
+        // dispatch any attributes that are bound per primitive
+        if (bindPerPrimtiveSetActive) arrayDispatchers.dispatch(BIND_PER_PRIMITIVE_SET, primitiveSetNum);
+
+        const PrimitiveSet* primitiveset = _primitives[primitiveSetNum].get();
 
         if (useFastPath)
         {
@@ -1409,9 +1419,9 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
                         vindex<indexEnd;
                         ++vindex,++primCount)
                     {
-                        if ((primCount%primLength)==0)
+                        if (bindPerPrimtiveActive && (primCount%primLength)==0)
                         {
-                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE);
+                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE,++primitiveNum);
                         }
 
                         arrayDispatchers.dispatch(BIND_PER_VERTEX, vindex);
@@ -1438,9 +1448,9 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
                             primCount<*primItr;
                             ++vindex,++primCount)
                         {
-                            if ((primCount%localPrimLength)==0)
+                            if (bindPerPrimtiveActive && (primCount%localPrimLength)==0)
                             {
-                                arrayDispatchers.dispatch(BIND_PER_PRIMITIVE);
+                                arrayDispatchers.dispatch(BIND_PER_PRIMITIVE, ++primitiveNum);
                             }
                             arrayDispatchers.dispatch(BIND_PER_VERTEX, vindex);
                         }
@@ -1463,9 +1473,9 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
                         ++primCount,++primItr)
                     {
 
-                        if ((primCount%primLength)==0)
+                        if (bindPerPrimtiveActive && (primCount%primLength)==0)
                         {
-                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE);
+                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE, ++primitiveNum);
                         }
 
                         unsigned int vindex=*primItr;
@@ -1487,9 +1497,9 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
                         primItr!=drawElements->end();
                         ++primCount,++primItr)
                     {
-                        if ((primCount%primLength)==0)
+                        if (bindPerPrimtiveActive && (primCount%primLength)==0)
                         {
-                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE);
+                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE, ++primitiveNum);
                         }
 
                         unsigned int vindex=*primItr;
@@ -1511,9 +1521,9 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
                         primItr!=drawElements->end();
                         ++primCount,++primItr)
                     {
-                        if ((primCount%primLength)==0)
+                        if (bindPerPrimtiveActive && (primCount%primLength)==0)
                         {
-                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE);
+                            arrayDispatchers.dispatch(BIND_PER_PRIMITIVE, ++primitiveNum);
                         }
 
                         unsigned int vindex=*primItr;
@@ -1643,7 +1653,7 @@ void Geometry::drawImplementation(RenderInfo& renderInfo) const
     }
 
     // force the use of the slow path code to test the glBegin/glEnd replacement codes.
-    bool forceSlowPath = false;
+    bool forceSlowPath = true;
 
     if (areFastPathsUsed() && !forceSlowPath)
     {

src/osg/State.cpp

@@ -120,6 +120,7 @@ State::State():
     _maxBufferObjectPoolSize = 0;
 
     _glBeginEndAdapter.setState(this);
+    _arrayDispatchers.setState(this);
 }
 
 State::~State()