ccpr: Replace curve corner MSAA with analytic attenuation
Begins using the new triangle corner algorithm on curves as well.
Updates the vertex backend to render curves in a single pass.
Simplifies the cubic and quadratic shaders. Removes all code related to
sample locations.
Bug: skia:
Change-Id: I96c6c401be765e96a8fe087deb7f84760e68dcf0
Reviewed-on: https://skia-review.googlesource.com/115746
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
9 files changed