void CompoundUpdateInputVisitor::_updateFrames( Compound* compound )
{
const Channel* channel = compound->getChannel();
if( !compound->testInheritTask( fabric::TASK_ASSEMBLE ) || !channel )
return;
const Frames& inputFrames = compound->getInputFrames();
if( inputFrames.empty( ))
{
compound->unsetInheritTask( fabric::TASK_ASSEMBLE );
return;
}
for( FramesCIter i = inputFrames.begin(); i != inputFrames.end(); ++i )
{
//----- Find corresponding output frame
Frame* frame = *i;
const std::string& name = frame->getName();
Compound::FrameMap::const_iterator j = _outputFrames.find( name );
if( j == _outputFrames.end( ))
{
LBVERB << "Can't find matching output frame, ignoring input frame "
<< name << std::endl;
frame->unsetData();
continue;
}
//----- Set frame parameters:
// 1) Frame offset
Frame* outputFrame = j->second;
const Channel* iChannel = compound->getInheritChannel();
Vector2i frameOffset = outputFrame->getMasterData()->getOffset() +
frame->getNativeOffset();
if( outputFrame->getCompound()->getInheritChannel() != iChannel )
frameOffset = frame->getNativeOffset();
else if( channel != iChannel )
{
// compute delta offset between source and destination, since the
// channel's native origin (as opposed to destination) is used.
const Viewport& frameVP = frame->getViewport();
const PixelViewport& inheritPVP=compound->getInheritPixelViewport();
PixelViewport framePVP( inheritPVP );
framePVP.apply( frameVP );
frameOffset.x() -= framePVP.x;
frameOffset.y() -= framePVP.y;
const PixelViewport& iChannelPVP = iChannel->getPixelViewport();
frameOffset.x() -= iChannelPVP.x;
frameOffset.y() -= iChannelPVP.y;
}
frame->setOffset( frameOffset );
// 2) zoom
_updateZoom( compound, frame, outputFrame );
// 3) TODO input frames are moved using the offset. The pvp signifies
// the pixels to be used from the frame data.
//framePVP.x = static_cast< int32_t >( frameVP.x * inheritPVP.w );
//framePVP.y = static_cast< int32_t >( frameVP.y * inheritPVP.h );
//frame->setInheritPixelViewport( framePVP );
//----- Link input frame to output frame (connects frame data)
outputFrame->addInputFrame( frame, compound );
for( unsigned k = 0; k < NUM_EYES; ++k )
{
const Eye eye = Eye( 1<<k );
if( compound->isInheritActive( eye ) && // eye pass used
outputFrame->hasData( eye )) // output data for eye pass
{
frame->commit();
LBLOG( LOG_ASSEMBLY )
<< "Input frame \"" << name << "\" on channel \""
<< channel->getName() << "\" id " << frame->getID() << " v"
<< frame->getVersion() << "\" tile pos "
<< frame->getOffset() << ' ' << frame->getZoom()
<< std::endl;
break;
}
}
}
}
void CompoundUpdateOutputVisitor::_updateFrames(Compound* compound)
{
const Frames& outputFrames = compound->getOutputFrames();
if (outputFrames.empty())
compound->unsetInheritTask(fabric::TASK_READBACK);
const Channel* channel = compound->getChannel();
if (!compound->testInheritTask(fabric::TASK_READBACK) || !channel)
return;
for (FramesCIter i = outputFrames.begin(); i != outputFrames.end(); ++i)
{
//----- Check uniqueness of output frame name
Frame* frame = *i;
const std::string& name = frame->getName();
if (_outputFrames.find(name) != _outputFrames.end())
{
LBWARN << "Multiple output frames of the same name are unsupported"
<< ", ignoring output frame " << name << std::endl;
frame->unsetData();
continue;
}
//----- compute readback area
const Viewport& frameVP = frame->getViewport();
const PixelViewport& inheritPVP = compound->getInheritPixelViewport();
PixelViewport framePVP(inheritPVP);
framePVP.apply(frameVP);
if (!framePVP.hasArea()) // output frame has no pixels
{
LBINFO << "Skipping output frame " << name << ", no pixels"
<< std::endl;
frame->unsetData();
continue;
}
//----- Create new frame datas
// * one frame data used for each eye pass
// * data is set only on master frame data (will copy to all others)
frame->cycleData(_frameNumber, compound);
FrameData* frameData = frame->getMasterData();
LBASSERT(frameData);
LBLOG(LOG_ASSEMBLY)
<< lunchbox::disableFlush << "Output frame \"" << name << "\" id "
<< frame->getID() << " v" << frame->getVersion() + 1 << " data id "
<< frameData->getID() << " v" << frameData->getVersion() + 1
<< " on channel \"" << channel->getName() << "\" tile pos "
<< framePVP.x << ", " << framePVP.y;
//----- Set frame data parameters:
// 1) offset is position wrt destination view, used only by input frames
const bool tiled = !compound->getInputTileQueues().empty();
frameData->setOffset(tiled ? Vector2i(0, 0)
: Vector2i(framePVP.x, framePVP.y));
// 2) pvp is area within channel
framePVP.x = static_cast<int32_t>(frameVP.x * inheritPVP.w);
framePVP.y = static_cast<int32_t>(frameVP.y * inheritPVP.h);
frameData->setPixelViewport(framePVP);
// 3) image buffers and storage type
const Frame::Buffer buffers = frame->getBuffers();
frameData->setType(frame->getType());
frameData->setBuffers(buffers == Frame::Buffer::undefined
? compound->getInheritBuffers()
: buffers);
// 4) (source) render context
frameData->setContext(compound->setupRenderContext(EYE_CYCLOP));
//----- Set frame parameters:
// 1) offset is position wrt window, i.e., the channel position
if (compound->getInheritChannel() == channel)
frame->setOffset(Vector2i(inheritPVP.x, inheritPVP.y));
else
{
const PixelViewport& nativePVP = channel->getPixelViewport();
frame->setOffset(Vector2i(nativePVP.x, nativePVP.y));
}
// 2) zoom
_updateZoom(compound, frame);
//----- Commit
frame->commitData();
_outputFrames[name] = frame;
LBLOG(LOG_ASSEMBLY)
<< " buffers " << frameData->getBuffers() << " read area "
<< framePVP << " readback " << frame->getZoom() << " assemble "
<< frameData->getZoom() << lunchbox::enableFlush << std::endl;
}
}
