void Channel::frameAssemble( const eq::uint128_t& frameID )
{
if( stopRendering( ))
return;
if( _isDone( ))
return;
Accum& accum = _accum[ lunchbox::getIndexOfLastBit( getEye()) ];
if( getPixelViewport() != _currentPVP )
{
accum.transfer = true;
if( accum.buffer && !accum.buffer->usesFBO( ))
{
LBWARN << "Current viewport different from view viewport, "
<< "idle anti-aliasing not implemented." << std::endl;
accum.step = 0;
}
eq::Channel::frameAssemble( frameID );
return;
}
// else
accum.transfer = true;
const eq::Frames& frames = getInputFrames();
for( eq::Frames::const_iterator i = frames.begin(); i != frames.end(); ++i )
{
eq::Frame* frame = *i;
const eq::SubPixel& curSubPixel = frame->getSubPixel();
if( curSubPixel != eq::SubPixel::ALL )
accum.transfer = false;
accum.stepsDone = LB_MAX( accum.stepsDone,
frame->getSubPixel().size*frame->getPeriod( ));
}
applyBuffer();
applyViewport();
setupAssemblyState();
try
{
eq::Compositor::assembleFrames( getInputFrames(), this, accum.buffer );
}
catch( const co::Exception& e )
{
LBWARN << e.what() << std::endl;
}
resetAssemblyState();
}
void Channel::frameAssemble( const eq::uint128_t& frameID )
{
const bool composeOnly = (_drawRange == eq::Range::ALL);
eq::FrameData* data = _frame.getData();
_startAssemble();
const eq::Frames& frames = getInputFrames();
eq::PixelViewport coveredPVP;
eq::Frames dbFrames;
eq::Zoom zoom( eq::Zoom::NONE );
// Make sure all frames are ready and gather some information on them
for( eq::Frames::const_iterator i = frames.begin();
i != frames.end(); ++i )
{
eq::Frame* frame = *i;
{
eq::ChannelStatistics stat( eq::Statistic::CHANNEL_FRAME_WAIT_READY,
this );
frame->waitReady( );
}
const eq::Range& range = frame->getRange();
if( range == eq::Range::ALL ) // 2D frame, assemble directly
eq::Compositor::assembleFrame( frame, this );
else
{
dbFrames.push_back( frame );
zoom = frame->getZoom();
_expandPVP( coveredPVP, frame->getImages(), frame->getOffset() );
}
}
coveredPVP.intersect( getPixelViewport( ));
if( dbFrames.empty( ))
{
resetAssemblyState();
return;
}
// calculate correct frames sequence
if( !composeOnly && coveredPVP.hasArea( ))
{
_frame.clear();
data->setRange( _drawRange );
dbFrames.push_back( &_frame );
}
_orderFrames( dbFrames );
// check if current frame is in proper position, read back if not
if( !composeOnly )
{
if( _bgColor == eq::Vector3f::ZERO && dbFrames.front() == &_frame )
dbFrames.erase( dbFrames.begin( ));
else if( coveredPVP.hasArea())
{
eq::Window::ObjectManager* glObjects = getObjectManager();
_frame.setOffset( eq::Vector2i( 0, 0 ));
_frame.setZoom( zoom );
data->setPixelViewport( coveredPVP );
_frame.readback( glObjects, getDrawableConfig( ));
clearViewport( coveredPVP );
// offset for assembly
_frame.setOffset( eq::Vector2i( coveredPVP.x, coveredPVP.y ));
}
}
// blend DB frames in order
try
{
eq::Compositor::assembleFramesSorted( dbFrames, this, 0,
true /*blendAlpha*/ );
}
catch( eq::Exception e )
{
EQWARN << e << std::endl;
}
resetAssemblyState();
// Update range
_drawRange = getRange();
}
