FGFS-4.1/OpenSceneGraph
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Added setting of the DisplaySettings::setMaxNumberOfGraphicsContext() to the

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number of contexts required by Producer.
This commit is contained in:
Robert Osfield
2006-04-11 08:44:26 +00:00
parent acb754a127
commit 99285a40ef
1 changed files with 35 additions and 5 deletions
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40
src/osgProducer/OsgCameraGroup.cpp
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@@ -237,19 +237,49 @@ void OsgCameraGroup::_init()
else if (strcmp(str,"ThreadPerCamera")==0) _threadModel = ThreadPerCamera;
}
// work out how many graphics context we have
std::set<Producer::RenderSurface*> renderSurfaces;
for(unsigned int i=0; i<getNumberOfCameras(); ++i)
{
if (getCamera(i) && getCamera(i)->getRenderSurface())
{
renderSurfaces.insert(getCamera(i)->getRenderSurface());
}
}
unsigned int numContexts = renderSurfaces.size();
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);
if (strcmp(str,"ON")==0)
{
Producer::RenderSurface::shareAllGLContexts(true);
// if we are sharing graphics contexts then we just treat them all as one.
numContexts = 1;
}
else if (strcmp(str,"OFF")==0)
{
Producer::RenderSurface::shareAllGLContexts(false);
}
}
if (_threadModel==ThreadPerCamera && _cfg->getNumberOfCameras()>1)
// initialize the number of graphics contexts to set up if there arn't already enough.
if (osg::DisplaySettings::instance()->getMaxNumberOfGraphicsContexts() < numContexts)
{
osg::DisplaySettings::instance()->setMaxNumberOfGraphicsContexts(numContexts);
}
if ((_threadModel==ThreadPerCamera || _threadModel==ThreadPerRenderSurface) && _cfg->getNumberOfCameras()>1)
{
// switch on thread safe reference counting by default when running multi-threaded.
// osg::Referenced::setThreadSafeReferenceCounting(true);
osg::Referenced::setThreadSafeReferenceCounting(true);
}
_scene_data = NULL;
_global_stateset = NULL;
_clear_color.set( 0.2f, 0.2f, 0.4f, 1.0f );