1. Feature: Clients need to override didConcat44() (new data)
2. Perf: Clients need to override didTranslate (and now didScale) so our
default impls can be empty.
Need SK_SUPPORT_LEGACY_CANVAS_MATRIX_VIRTUALS flag to stage this in
clients (anyone who subclasses SkCanvas)
Before (with flag)
120.87 canvas_matrix_4x4 8888
108.10 ? canvas_matrix_3x3 8888
108.13 ? canvas_matrix_2x3 8888
141.54 canvas_matrix_scale 8888
128.04 canvas_matrix_trans 8888
After (without the flag)
...
90.79 canvas_matrix_scale 8888
94.51 canvas_matrix_trans 8888
bug: skia:9768
Change-Id: I6f500138dd6b2b24754dc065c650d0bd3c341540
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263349
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2076b04d15