private void ResetTransform(Transform transform, DecorationSettings setting)
{
transform.localPosition = setting.position;
}
private void RasterizePass(
ref UIOperationContext context,
ref DecorationSettings settings, IDecorator decorations,
bool compositing, ref RasterizePassSet passSet,
ref ImperativeRenderer renderer, RasterizePasses pass
)
{
UIOperationContext passContext;
context.Clone(out passContext);
passContext.Pass = pass;
var hasNestedContext = (pass == RasterizePasses.Content) &&
(ShouldClipContent || (HasChildren && CreateNestedContextForChildren));
if (hasNestedContext)
{
UpdateVisibleRegion(ref passContext, ref settings.Box);
}
// FIXME: The memset for these actually burns a measurable amount of time
ImperativeRenderer contentRenderer;
RasterizePassSet childrenPassSet;
UIOperationContext contentContext;
int previousStackDepth = passSet.StackDepth, newStackDepth = previousStackDepth;
// For clipping we need to create a separate batch group that contains all the rasterization work
// for our children. At the start of it we'll generate the stencil mask that will be used for our
// rendering operation(s).
if (hasNestedContext)
{
NestedContextPassSetup(
ref context, ref passSet, ref renderer, ref passContext,
out contentRenderer, out childrenPassSet, out contentContext,
previousStackDepth, ref newStackDepth
);
}
else
{
contentContext = passContext;
childrenPassSet = default;
contentRenderer = default;
}
// TODO: all the copying of settings here burns CPU time
if (HasPreRasterizeHandler && (pass == RasterizePasses.Content))
{
OnPreRasterize(ref contentContext, settings, decorations);
}
if (hasNestedContext)
{
OnRasterize(ref contentContext, ref contentRenderer, settings, decorations);
}
else
{
OnRasterize(ref contentContext, ref renderer, settings, decorations);
}
if ((pass == RasterizePasses.Content) && HasChildren)
{
if (hasNestedContext)
{
OnRasterizeChildren(ref contentContext, ref childrenPassSet, settings);
}
else
{
// FIXME: Save/restore layers?
OnRasterizeChildren(ref contentContext, ref passSet, settings);
}
}
if (hasNestedContext)
{
// GROSS OPTIMIZATION HACK: Detect that any rendering operation(s) occurred inside the
// group and if so, set up the stencil mask so that they will be clipped.
if (ShouldClipContent && !contentRenderer.Container.IsEmpty)
{
NestedContextPassTeardown(
ref context, ref settings, decorations, ref passSet,
ref contentRenderer, ref contentContext, previousStackDepth
);
}
renderer.Layer += 1;
}
}
protected virtual void OnRasterize(ref UIOperationContext context, ref ImperativeRenderer renderer, DecorationSettings settings, IDecorator decorations)
{
decorations?.Rasterize(ref context, ref renderer, settings);
}
protected virtual void OnRasterizeChildren(ref UIOperationContext context, ref RasterizePassSet passSet, DecorationSettings settings)
{
}
protected virtual void OnPreRasterize(ref UIOperationContext context, DecorationSettings settings, IDecorator decorations)
{
UpdateAnimation(context.NowL);
}