factor out some helpers in SkVMBlitter

device_coord() and paint_color() get the device coordinate
as skvm::Coord and paint color as skvm::Color respectively.

Change-Id: Ia35c635d073b5aa7f4369340cff108027728cb74
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319765
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
1 file changed