tree 785cdd8dc3f2f04c4027c2ad3b4d762caede37c5
parent 54f76d5b266784e95040b691db60fce0dabdcdc2
author Raph Levien <raphl@canva.com> 1791609790 +1100
committer Raph Levien <raphl@canva.com> 1791609790 +1100

vello_gpu: direct GPU strip draws inside layers, exact buffer sizing

Paths inside layers are now drawn from GPU-built instances too: the instance
pass clips each segment to the draw target's tile bounds and applies the
layer's geometry shift (as `visit_strip_fill_segments` and `RectU16::shift`
do), with unused instance slots cleared per frame. Buffers and clears are
sized to the exact strip and block totals from the path summaries, and the
strip-record pass is skipped when nothing is read back. Readback now happens
only for paths under a clip path and for non-solid paints.

Written primarily by Claude Fable 5.1