FGFS-4.1/OpenSceneGraph
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Added handling of sharing of graphics context data which is now supported

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by Producer.  You can get the osgProducer::Viewer to share graphics contexts
by using the env var OSG_SHARE_GRAPHICS_CONTEXTS set to ON or OFF i.e.

   setenv OSG_SHARE_GRAPHICS_CONTEXTS ON
This commit is contained in:
Robert Osfield
2005-05-06 19:44:24 +00:00
parent 6763de4840
commit 52e036f425
1 changed files with 14 additions and 2 deletions
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16
src/osgProducer/OsgCameraGroup.cpp
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@@ -212,8 +212,16 @@ void OsgCameraGroup::_init()
if (str)
{
if (strcmp(str,"SingleThreaded")==0) _thread_model = SingleThreaded;
else _thread_model = ThreadPerCamera;
else if (strcmp(str,"ThreadPerCamera")==0) _thread_model = ThreadPerCamera;
}
str = getenv("OSG_SHARE_GRAPHICS_CONTEXTS");
if (str)
{
if (strcmp(str,"ON")==0) Producer::RenderSurface::shareAllGLContexts(true);
else if (strcmp(str,"OFF")==0) Producer::RenderSurface::shareAllGLContexts(false);
}
_scene_data = NULL;
_global_stateset = NULL;
@@ -453,7 +461,11 @@ bool OsgCameraGroup::realize()
if (_renderSurfaceStateMap.count(rs)==0)
{
_renderSurfaceStateMap[rs] = sv->getState();
sv->getState()->setContextID(contextID++);
sv->getState()->setContextID(contextID);
// if we aren't share OpenGL objects between graphics contexts then need to increment the contextID
// to ensure that the OSG generates seperate objects for each graphics context.
if (!Producer::RenderSurface::allGLContextsAreShared()) ++contextID;
}
else
{