Use pow2 rectanization for the hw tessellation atlas
This particular atlas is only used for small-area paths, which means
at least one dimension of every path is guaranteed to be quite small.
So we use a pow2 atlas and transpose tall paths. Transposing makes it
so every path has a small height, which lends very well to efficient
pow2 atlas packing.
Change-Id: I409283c392117d17937526ab512bbfa290a28577
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/290956
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
7 files changed