Added VAO support to osgTerrain::GeometryPool
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@ -65,6 +65,9 @@ class OSGTERRAIN_EXPORT SharedGeometry : public osg::Drawable
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VertexToHeightFieldMapping& getVertexToHeightFieldMapping() { return _vertexToHeightFieldMapping; }
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const VertexToHeightFieldMapping& getVertexToHeightFieldMapping() const { return _vertexToHeightFieldMapping; }
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osg::VertexArrayState* createVertexArrayState(osg::RenderInfo& renderInfo) const;
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void compileGLObjects(osg::RenderInfo& renderInfo) const;
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void drawImplementation(osg::RenderInfo& renderInfo) const;
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@ -12,6 +12,7 @@
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*/
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#include <osgTerrain/GeometryPool>
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#include <osg/VertexArrayState>
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#include <osg/Texture1D>
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#include <osg/Texture2D>
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#include <osgDB/ReadFile>
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@ -792,8 +793,37 @@ SharedGeometry::~SharedGeometry()
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{
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}
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osg::VertexArrayState* SharedGeometry::createVertexArrayState(osg::RenderInfo& renderInfo) const
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{
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osg::State& state = *renderInfo.getState();
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osg::VertexArrayState* vas = new osg::VertexArrayState(&state);
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// OSG_NOTICE<<"Creating new osg::VertexArrayState "<< vas<<std::endl;
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if (_vertexArray.valid()) vas->assignVertexArrayDispatcher();
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if (_colorArray.valid()) vas->assignColorArrayDispatcher();
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if (_normalArray.valid()) vas->assignNormalArrayDispatcher();
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if (_texcoordArray.valid()) vas->assignTexCoordArrayDispatcher(1);
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if (state.useVertexArrayObject(_useVertexArrayObject))
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{
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// OSG_NOTICE<<" Setup VertexArrayState to use VAO "<<vas<<std::endl;
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vas->generateVertexArrayObject();
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}
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else
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{
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// OSG_NOTICE<<" Setup VertexArrayState to without using VAO "<<vas<<std::endl;
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}
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return vas;
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}
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void SharedGeometry::compileGLObjects(osg::RenderInfo& renderInfo) const
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{
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// OSG_NOTICE<<"SharedGeometry::compileGLObjects() "<<this<<std::endl;
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if (!_vertexArray) return;
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if (_vertexArray->getVertexBufferObject())
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{
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@ -802,29 +832,41 @@ void SharedGeometry::compileGLObjects(osg::RenderInfo& renderInfo) const
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osg::GLExtensions* extensions = state.get<osg::GLExtensions>();
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if (!extensions) return;
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osg::BufferObject* vbo = _vertexArray->getVertexBufferObject();
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osg::GLBufferObject* vbo_glBufferObject = vbo->getOrCreateGLBufferObject(contextID);
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if (vbo_glBufferObject && vbo_glBufferObject->isDirty())
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{
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osg::BufferObject* vbo = _vertexArray->getVertexBufferObject();
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osg::GLBufferObject* glBufferObject = vbo->getOrCreateGLBufferObject(contextID);
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if (glBufferObject && glBufferObject->isDirty())
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{
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// OSG_NOTICE<<"Compile buffer "<<glBufferObject<<std::endl;
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glBufferObject->compileBuffer();
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}
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// OSG_NOTICE<<"Compile buffer "<<glBufferObject<<std::endl;
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vbo_glBufferObject->compileBuffer();
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extensions->glBindBuffer(GL_ARRAY_BUFFER_ARB,0);
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}
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osg::BufferObject* ebo = _drawElements->getElementBufferObject();
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osg::GLBufferObject* ebo_glBufferObject = ebo->getOrCreateGLBufferObject(contextID);
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if (ebo_glBufferObject && vbo_glBufferObject->isDirty())
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{
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osg::BufferObject* ebo = _drawElements->getElementBufferObject();
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osg::GLBufferObject* glBufferObject = ebo->getOrCreateGLBufferObject(contextID);
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if (glBufferObject && glBufferObject->isDirty())
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{
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// OSG_NOTICE<<"Compile buffer "<<glBufferObject<<std::endl;
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glBufferObject->compileBuffer();
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}
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// OSG_NOTICE<<"Compile buffer "<<glBufferObject<<std::endl;
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ebo_glBufferObject->compileBuffer();
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extensions->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB,0);
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}
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if (state.useVertexArrayObject(_useVertexArrayObject))
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{
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osg::VertexArrayState* vas = 0;
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_vertexArrayStateList[contextID] = vas = createVertexArrayState(renderInfo);
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// OSG_NOTICE<<" setting up VertexArrayObject "<<vas<<std::endl;
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osg::State::SetCurrentVertexArrayStateProxy setVASProxy(state, vas);
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vas->bindVertexArrayObject();
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if (vbo_glBufferObject) vas->bindVertexBufferObject(vbo_glBufferObject);
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if (ebo_glBufferObject) vas->bindElementBufferObject(ebo_glBufferObject);
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}
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// unbind the BufferObjects
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extensions->glBindBuffer(GL_ARRAY_BUFFER_ARB,0);
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extensions->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB,0);
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}
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else
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{
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@ -857,9 +899,10 @@ void SharedGeometry::releaseGLObjects(osg::State* state) const
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void SharedGeometry::drawImplementation(osg::RenderInfo& renderInfo) const
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{
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bool computeDiagonals = renderInfo.getState()->supportsShaderRequirement("COMPUTE_DIAGONALS");
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//OSG_NOTICE<<"SharedGeometry "<<computeDiagonals<<std::endl;
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// OSG_NOTICE<<"SharedGeometry::drawImplementation "<<computeDiagonals<<std::endl;
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osg::State& state = *renderInfo.getState();
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osg::VertexArrayState* vas = state.getCurrentVertexArrayState();
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// state.checkGLErrors("Before SharedGeometry::drawImplementation.");
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@ -876,22 +919,27 @@ void SharedGeometry::drawImplementation(osg::RenderInfo& renderInfo) const
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attributeDispatchers.activateNormalArray(_normalArray.get());
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attributeDispatchers.activateColorArray(_colorArray.get());
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state.lazyDisablingOfVertexAttributes();
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if (!state.useVertexArrayObject(_useVertexArrayObject) || vas->getRequiresSetArrays())
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{
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// OSG_NOTICE<<" sending vertex arrays vas->getRequiresSetArrays()="<<vas->getRequiresSetArrays()<<std::endl;
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// set up arrays
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if( _vertexArray.valid() )
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state.setVertexPointer(_vertexArray.get());
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vas->lazyDisablingOfVertexAttributes();
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if (_normalArray.valid() && _normalArray->getBinding()==osg::Array::BIND_PER_VERTEX)
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state.setNormalPointer(_normalArray.get());
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// set up arrays
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if( _vertexArray.valid() )
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vas->setVertexArray(state, _vertexArray.get());
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if (_colorArray.valid() && _colorArray->getBinding()==osg::Array::BIND_PER_VERTEX)
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state.setColorPointer(_colorArray.get());
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if (_normalArray.valid() && _normalArray->getBinding()==osg::Array::BIND_PER_VERTEX)
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vas->setNormalArray(state, _normalArray.get());
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if (_texcoordArray.valid() && _texcoordArray->getBinding()==osg::Array::BIND_PER_VERTEX)
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state.setTexCoordPointer(0, _texcoordArray.get());
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if (_colorArray.valid() && _colorArray->getBinding()==osg::Array::BIND_PER_VERTEX)
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vas->setColorArray(state, _colorArray.get());
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state.applyDisablingOfVertexAttributes();
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if (_texcoordArray.valid() && _texcoordArray->getBinding()==osg::Array::BIND_PER_VERTEX)
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vas->setTexCoordArray(state, 0, _texcoordArray.get());
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vas->applyDisablingOfVertexAttributes(state);
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}
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if (checkForGLErrors) state.checkGLErrors("Geometry::drawImplementation() after vertex arrays setup.");
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@ -901,15 +949,17 @@ void SharedGeometry::drawImplementation(osg::RenderInfo& renderInfo) const
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//
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GLenum primitiveType = computeDiagonals ? GL_LINES_ADJACENCY : GL_QUADS;
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bool request_bind_unbind = !state.useVertexArrayObject(_useVertexArrayObject) || state.getCurrentVertexArrayState()->getRequiresSetArrays();
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osg::GLBufferObject* ebo = _drawElements->getOrCreateGLBufferObject(state.getContextID());
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if (ebo)
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{
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state.bindElementBufferObject(ebo);
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/*if (request_bind_unbind)*/ state.bindElementBufferObject(ebo);
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glDrawElements(primitiveType, _drawElements->getNumIndices(), _drawElements->getDataType(), (const GLvoid *)(ebo->getOffset(_drawElements->getBufferIndex())));
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state.unbindElementBufferObject();
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/*if (request_bind_unbind)*/ state.unbindElementBufferObject();
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}
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else
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{
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@ -917,7 +967,7 @@ void SharedGeometry::drawImplementation(osg::RenderInfo& renderInfo) const
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}
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// unbind the VBO's if any are used.
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state.unbindVertexBufferObject();
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if (request_bind_unbind) state.unbindVertexBufferObject();
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if (checkForGLErrors) state.checkGLErrors("end of SharedGeometry::drawImplementation().");
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}
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