void Window::joinNVSwapBarrier( const uint32_t group, const uint32_t barrier)
{
if( group == 0 )
return;
#if 1
EQWARN << "Entering untested function GLXWindow::joinNVSwapBarrier"
<< std::endl;
if ( !GLXEW_NV_swap_group )
{
EQWARN << "NV Swap group extension not supported" << std::endl;
return;
}
const int screen = DefaultScreen( _xDisplay );
uint32_t maxBarrier = 0;
uint32_t maxGroup = 0;
glXQueryMaxSwapGroupsNV( _xDisplay, screen, &maxGroup, &maxBarrier );
if( group > maxGroup )
{
EQWARN << "Failed to initialize GLX_NV_swap_group: requested group "
<< group << " greater than maxGroups (" << maxGroup << ")"
<< std::endl;
return;
}
if( barrier > maxBarrier )
{
EQWARN << "Failed to initialize GLX_NV_swap_group: requested barrier "
<< barrier << "greater than maxBarriers (" << maxBarrier << ")"
<< std::endl;
return;
}
if( !glXJoinSwapGroupNV( _xDisplay, _xDrawable, group ))
{
EQWARN << "Failed to join swap group " << group << std::endl;
return;
}
_glXNVSwapGroup = group;
if( !glXBindSwapBarrierNV( _xDisplay, group, barrier ))
{
EQWARN << "Failed to bind swap barrier " << barrier << std::endl;
return;
}
EQINFO << "Joined swap group " << group << " and barrier " << barrier
<< std::endl;
#else
EQUNIMPLEMENTED;
#endif
}
void Window::leaveNVSwapBarrier()
{
if( _impl->glXNVSwapGroup == 0 )
return;
glXBindSwapBarrierNV( _impl->xDisplay, _impl->glXNVSwapGroup, 0 );
glXJoinSwapGroupNV( _impl->xDisplay, _impl->xDrawable, 0 );
_impl->glXNVSwapGroup = 0;
}
void Window::leaveNVSwapBarrier()
{
if( _glXNVSwapGroup == 0 )
return;
#if 1
glXBindSwapBarrierNV( _xDisplay, _glXNVSwapGroup, 0 );
glXJoinSwapGroupNV( _xDisplay, _xDrawable, 0 );
_glXNVSwapGroup = 0;
#else
EQUNIMPLEMENTED;
#endif
}
