Corrected PrimitiveSet.cpp in order DrawArraysLength can be instanced.
It's the only pr missing code
if (_numInstances>=1) glDrawXXXInstanced(...,_numInstances);
else glDrawXXX();
implementations being registered at the same time.
One usage case for this functionality to support usage of Wayland and X11 in the same version of the osgViewer.
As part of the new functionality there is now a osg::GraphicsContext::Traits::windowingSystemPreferrence string
that default to empty, but if defined will ensure that a specific WindowingSystemInterface is utilized when
you do a generic call like osg::createGraphicsContext().
Also implemented is standard proxy object for registering the new contexts and removing them automatically, and
declaration of standard graphicswindow_name() C entry point to help with static build linking.
"From I think that this piece of code in StateSet::setTextureAttributeAndModes is a copy&paste mistake:
OSG_NOTICE<<"Warning: non texture attribute '"<<attribute->className()<<"' passed to setTextureAttributeAndModes(unit,attr,value), "<<std::endl;
OSG_NOTICE<<" assuming setAttributeAndModes(attr,value) instead."<<std::endl;
OSG_NOTICE<<" please change calling code to use appropriate call."<<std::endl;
setAttribute(attribute,value);
As per the warning message it should be calling setAttributeAndModes(attribute,value); ."
The change I made is to check GL_QUERY_RESULT_AVAILABLE before retrieving the query, to ensure that there won't be a stall. If the query result is not available yet, we'll leave it alone and try again in the next frame.
Had to make a few more changes than I'd liked, mostly because the TestResult mechanism wasn't designed for holding on to query objects for more than one frame. As well, I'm thinking that RetrieveQueriesCallback and ClearQueriesCallback could be merged together, if we wanted to go for more refactoring. For though now my strategy is to make as little changes as possible. Let me know what you think of the patch."
Currently the code looks like this:
Code:
DrawElementsUByte* elems = new DrawElementsUByte(PrimitiveSet::TRIANGLES);
elems->push_back(0);
elems->push_back(1);
elems->push_back(2);
elems->push_back(2);
elems->push_back(3);
elems->push_back(0);
geom->addPrimitiveSet(elems);
geom->addPrimitiveSet(new DrawArrays(PrimitiveSet::QUADS,0,4));
The second condition looked really strange (note the ! sign), and results in pretty much all code paths uses the first code. The correct version should probably be that only people with GLES1 or GLES2 should use GL_TRIANGLES to simulate quads. And all others should use the native support for GL_QUADS.
"
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(364): error C2039: 'min' : is not a member of 'std'
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(364): error C3861: 'min': identifier not found
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(372): error C2039: 'min' : is not a member of 'std'
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(372): error C3861: 'min': identifier not found
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(381): error C2039: 'min' : is not a member of 'std'
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(381): error C3861: 'min': identifier not found
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(436): error C2039: 'min' : is not a member of 'std'
E:\osg\osgSvnGit\OpenSceneGraph\src\osg\PrimitiveSet.cpp(436): error C3861: 'min': identifier not found
I suggest to replace std::min by osg::minimum, attached is a (zipped) modified version of src/osg/PrimitiveSet.cpp
applies to the git reposetory only (updated 1 Feb 2016 ae6bade641ee4d8436ef69e7a7a347be81195a47 )
"
