Commit Graph

2 Commits

Author SHA1 Message Date
Chris Dalton
39ce12e0d4 Don't store tessellation tolerances on GrStrokeOp
Instead we calculate these values on the fly as needed. This is
necessary for hairlines because the tessellator will operate on them
in post-transform space, which requires different tolerances than the
setup code.

Bug: skia:10419
Change-Id: Ia8ffa8858b45949521c085ccbe5712b3842f785f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343499
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2020-12-14 18:16:47 +00:00
Chris Dalton
c2a1746b42 Implement stroke tessellation with indirect draws
Adds a vertex shader that maps a variable-length triangle strip to a
stroke and its preceding join. Adds a new op that generates stroke
instances from a path, bins them by log2 triangle strip length (using
SIMD for the calculations), and renders them with indirect draws.

Bug: skia:10419
Change-Id: I6d52df02cffe97d14827c6d66136957f1859f53b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/339716
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2020-12-10 00:25:17 +00:00