DashRenderNodes requestData()
{
livre::Node* node = static_cast< livre::Node* >( _channel->getNode( ));
livre::Window* window = static_cast< livre::Window* >( _channel->getWindow( ));
livre::Pipe* pipe = static_cast< livre::Pipe* >( window->getPipe( ));
ConstVolumeRendererParametersPtr vrParams = pipe->getFrameData()->getVRParameters();
const uint32_t minLOD = vrParams->getMinLOD();
const uint32_t maxLOD = vrParams->getMaxLOD();
const float screenSpaceError = vrParams->getSSE();
DashTreePtr dashTree = node->getDashTree();
const VolumeInformation& volInfo = dashTree->getDataSource()->getVolumeInformation();
const float worldSpacePerVoxel = volInfo.worldSpacePerVoxel;
const uint32_t volumeDepth = volInfo.rootNode.getDepth();
_drawRange = _channel->getRange();
SelectVisibles visitor( dashTree, _currentFrustum,
_channel->getPixelViewport().h,
screenSpaceError, worldSpacePerVoxel,
volumeDepth, minLOD, maxLOD,
Range{{ _drawRange.start, _drawRange.end }});
livre::DFSTraversal traverser;
traverser.traverse( volInfo.rootNode, visitor,
dashTree->getRenderStatus().getFrameID( ));
window->commit();
return visitor.getVisibles();
}
void requestData()
{
Viewporti pixelViewport;
const eq::PixelViewport& channelPvp = _channel->getPixelViewport();
pixelViewport.set( Vector2f( channelPvp.x, channelPvp.y ),
Vector2f( channelPvp.w, channelPvp.h ));
livre::Node* node = static_cast< livre::Node* >( _channel->getNode( ));
livre::Window* window = static_cast< livre::Window* >( _channel->getWindow( ));
livre::Pipe* pipe = static_cast< livre::Pipe* >( window->getPipe( ));
ConstVolumeRendererParametersPtr vrParams = pipe->getFrameData()->getVRParameters();
const uint32_t minLOD = vrParams->minLOD;
const uint32_t maxLOD = vrParams->maxLOD;
const float screenSpaceError = vrParams->screenSpaceError;
DashTreePtr dashTree = node->getDashTree();
const VolumeInformation& volInfo = dashTree->getDataSource()->getVolumeInformation();
const float worldSpacePerVoxel = volInfo.worldSpacePerVoxel;
const uint32_t volumeDepth = volInfo.rootNode.getDepth();
SelectVisibles visitor( dashTree,
_currentFrustum,
pixelViewport.getHeight( ),
screenSpaceError,
worldSpacePerVoxel,
volumeDepth,
minLOD,
maxLOD );
livre::DFSTraversal traverser;
traverser.traverse( volInfo.rootNode,
visitor, dashTree->getRenderStatus().getFrameID( ));
window->commit();
window->apply();
}
TextureUploadProcessor::TextureUploadProcessor( DashTreePtr dashTree,
GLContextPtr shareContext,
GLContextPtr context,
ConstVolumeRendererParametersPtr vrParameters )
: GLContextTrait( context )
, _dashTree( dashTree )
, _shareContext( shareContext )
, _textureCache( GL_LUMINANCE8 )
, _currentFrameID( 0 )
, _threadOp( TO_NONE )
, _vrParameters( vrParameters )
, _allDataLoaded( false )
, _needRedraw( false )
{
setDashContext( dashTree->createContext());
}
