internal static uint DepthFirstOnChildAdded(RenderChain renderChain, VisualElement parent, VisualElement ve, int index, bool resetState)
{
Debug.Assert(ve.panel != null);
if (ve.renderChainData.isInChain)
{
return(0); // Already added, redundant call
}
if (resetState)
{
ve.renderChainData = new RenderChainVEData();
}
ve.renderChainData.isInChain = true;
ve.renderChainData.verticesSpace = Matrix4x4.identity;
ve.renderChainData.transformID = UIRVEShaderInfoAllocator.identityTransform;
ve.renderChainData.clipRectID = UIRVEShaderInfoAllocator.infiniteClipRect;
ve.renderChainData.opacityID = UIRVEShaderInfoAllocator.fullOpacity;
ve.renderChainData.colorID = BMPAlloc.Invalid; // Rely on vertex tint color by default
ve.renderChainData.backgroundColorID = BMPAlloc.Invalid;
ve.renderChainData.borderLeftColorID = BMPAlloc.Invalid;
ve.renderChainData.borderTopColorID = BMPAlloc.Invalid;
ve.renderChainData.borderRightColorID = BMPAlloc.Invalid;
ve.renderChainData.borderBottomColorID = BMPAlloc.Invalid;
ve.renderChainData.tintColorID = BMPAlloc.Invalid;
ve.renderChainData.textCoreSettingsID = UIRVEShaderInfoAllocator.defaultTextCoreSettings;
ve.renderChainData.compositeOpacity = float.MaxValue; // Any unreasonable value will do to trip the opacity composer to work
UpdateLocalFlipsWinding(ve);
if (parent != null)
{
if ((parent.renderHints & (RenderHints.GroupTransform)) != 0)
{
ve.renderChainData.groupTransformAncestor = parent;
}
else
{
ve.renderChainData.groupTransformAncestor = parent.renderChainData.groupTransformAncestor;
}
ve.renderChainData.hierarchyDepth = parent.renderChainData.hierarchyDepth + 1;
}
else
{
ve.renderChainData.groupTransformAncestor = null;
ve.renderChainData.hierarchyDepth = 0;
}
renderChain.EnsureFitsDepth(ve.renderChainData.hierarchyDepth);
if (index > 0)
{
Debug.Assert(parent != null);
ve.renderChainData.prev = GetLastDeepestChild(parent.hierarchy[index - 1]);
}
else
{
ve.renderChainData.prev = parent;
}
ve.renderChainData.next = ve.renderChainData.prev != null ? ve.renderChainData.prev.renderChainData.next : null;
if (ve.renderChainData.prev != null)
{
ve.renderChainData.prev.renderChainData.next = ve;
}
if (ve.renderChainData.next != null)
{
ve.renderChainData.next.renderChainData.prev = ve;
}
// TransformID
// Since transform type is controlled by render hints which are locked on the VE by now, we can
// go ahead and prep transform data now and never check on it again under regular circumstances
Debug.Assert(!RenderChainVEData.AllocatesID(ve.renderChainData.transformID));
if (NeedsTransformID(ve))
{
ve.renderChainData.transformID = renderChain.shaderInfoAllocator.AllocTransform(); // May fail, that's ok
}
else
{
ve.renderChainData.transformID = BMPAlloc.Invalid;
}
ve.renderChainData.boneTransformAncestor = null;
if (NeedsColorID(ve))
{
InitColorIDs(renderChain, ve);
SetColorValues(renderChain, ve);
}
if (!RenderChainVEData.AllocatesID(ve.renderChainData.transformID))
{
if (parent != null && (ve.renderHints & RenderHints.GroupTransform) == 0)
{
if (RenderChainVEData.AllocatesID(parent.renderChainData.transformID))
{
ve.renderChainData.boneTransformAncestor = parent;
}
else
{
ve.renderChainData.boneTransformAncestor = parent.renderChainData.boneTransformAncestor;
}
ve.renderChainData.transformID = parent.renderChainData.transformID;
ve.renderChainData.transformID.ownedState = OwnedState.Inherited; // Mark this allocation as not owned by us (inherited)
}
else
{
ve.renderChainData.transformID = UIRVEShaderInfoAllocator.identityTransform;
}
}
else
{
renderChain.shaderInfoAllocator.SetTransformValue(ve.renderChainData.transformID, GetTransformIDTransformInfo(ve));
}
// Recurse on children
int childrenCount = ve.hierarchy.childCount;
uint deepCount = 0;
for (int i = 0; i < childrenCount; i++)
{
deepCount += DepthFirstOnChildAdded(renderChain, ve, ve.hierarchy[i], i, resetState);
}
return(1 + deepCount);
}