Instead of taking the minimum required index/vertex count for an
instance, DynamicInstances::append() now takes a proxy. The proxy can
be used to calculate the index when it's needed at flush time, and can
accumulate its internal state to represent a worst case that
corresponds to the worst case index count as well.
Updates the tessellating RenderSteps to use a single PatchAllocator
definition that just swaps out how tess::LinearTolerances are converted
to a vertex count. This will also work seamlessly with
FixedCountStrokes.
Removes stride() function from PatchAllocator because it's clunky to
try and pass that out of DrawWriter or RenderStep to PatchWriter, and
can be re-computed from fAttribs anyways. Since it's only re-used in
PatchWriter for the deferred patch, it's one sum for every path contour
and will likely not be noticed in perf. If it is, we can have
PatchWriter remember it instead and keep PatchAllocator simple still.
Bug: skia:13056, skia:13012
Change-Id: I52a36da4df23ebb01a98246458b6538744c1815f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/540620
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
1186b60fcf