/**
* The root node is treated separately; it cannot inherit values since it has no parent
*/
int UpdateNodesAndAttachments( Layer& rootNode,
BufferIndex updateBufferIndex,
ResourceManager& resourceManager,
RenderQueue& renderQueue,
Shader* defaultShader )
{
DALI_ASSERT_DEBUG( rootNode.IsRoot() );
// Short-circuit for invisible nodes
if ( !rootNode.IsVisible( updateBufferIndex ) )
{
return 0;
}
// If the root node was not previously visible
BufferIndex previousBuffer = updateBufferIndex ? 0u : 1u;
if ( !rootNode.IsVisible( previousBuffer ) )
{
// The node was skipped in the previous update; it must recalculate everything
rootNode.SetAllDirtyFlags();
}
int nodeDirtyFlags( rootNode.GetDirtyFlags() );
if ( rootNode.GetInheritedShader() == NULL )
{
nodeDirtyFlags |= ShaderFlag;
}
int cumulativeDirtyFlags = nodeDirtyFlags;
UpdateRootNodeShader( rootNode, nodeDirtyFlags, defaultShader );
UpdateRootNodeOpacity( rootNode, nodeDirtyFlags, updateBufferIndex );
UpdateRootNodeTransformValues( rootNode, nodeDirtyFlags, updateBufferIndex );
DrawMode::Type drawMode( rootNode.GetDrawMode() );
// recurse children
NodeContainer& children = rootNode.GetChildren();
const NodeIter endIter = children.End();
for ( NodeIter iter = children.Begin(); iter != endIter; ++iter )
{
Node& child = **iter;
cumulativeDirtyFlags |= UpdateNodesAndAttachments( child,
nodeDirtyFlags,
updateBufferIndex,
resourceManager,
renderQueue,
rootNode,
defaultShader,
drawMode );
}
return cumulativeDirtyFlags;
}
