tree a4c0a49aa667857145019b5da4d7cb54935a2f6a
parent 276e0a2dcc63b88693a5e0106443c222d3f0def5
author John Stiles <johnstiles@google.com> 1663791390 -0400
committer SkCQ <skcq-be@skia-corp.google.com.iam.gserviceaccount.com> 1663854346 +0000

Replace make_RGBW_shader shader with a gradient.

This is functionally the same, but will work in Graphite without
special bitmap handling. Also, this change exposed a bug in the
blender tests--the code was evaluating the edges between pixels,
instead of pixel centers.

Change-Id: I4c152b019812a5572dea0de5cb223bc1d0ba0ead
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/583556
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>