Reland "Add support for explicit attribute offsets and strides."
This is a reland of 6927ab9311d9b54a6bf353c4a594b0a8f53c2e95
Original change's description:
> 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>
Bug: skia:12720
Change-Id: Ic4975b5b2e52f2d8213154da0e585eca6dfdd78d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/486098
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
38 files changed