Add support for explicit attribute offsets and strides.
Previously attribute offsets were always computed based on their
position in an attribute array and the stride was determined
by the offset and size of the last attribute.
Now a GP has the option to create attributes with explicit offsets
and specify an explicit vertex stride. All attributes must either
be implicit or explicit (enforced by assert).
GrGeometryProcessor::AttributeSet is now responsible for handling
implicitly determined attribute offsets and strides. The backends
no longer compute them.
Bug: skia:12720
Change-Id: I0211673dc70d4797c2d66b2555d8f5fb430be056
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/484736
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
37 files changed