Migrate dest-texture uniforms to GrGLSLBuiltinUniformHandles.
Previously, these lived in GrGLSLXferProcessor because only XPs needed
to support readback from the destination. We want the allow destination
readback from anywhere in the fragment pipeline (either FPs or XPs), so
a shared location was needed.
Followup CLs will continue to move dest-texture support out of XPs and
into shared/common homes.
Change-Id: Ic14de687463c0b234abe2d293b934d726646a17d
Bug: skia:12066
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/415556
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
15 files changed