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3 commits

Author SHA1 Message Date
Raph Levien 3b67a4e7c1 New clip implementation
This PR reworks the clip implementation. The highlight is that clip bounding box accounting is now done on GPU rather than CPU. The clip mask is also rasterized on EndClip rather than BeginClip, which decreases memory traffic needed for the clip stack.

This is a pretty good working state, but not all cleanup has been applied. An important next step is to remove the CPU clip accounting (it is computed and encoded, but that result is not used). Another step is to remove the Annotated structure entirely.

Fixes #88. Also relevant to #119
2022-02-17 17:13:28 -08:00
Raph Levien d948126c16 Adjust workgroup sizes
Make max workgroup size 256 and respect LG_WG_FACTOR.

Because the monoid scans only support a height of 2, this will reduce
the maximum scene complexity we can render. But it also increases
compatibility. Supporting larger scans is a TODO.
2021-12-08 11:48:38 -08:00
Raph Levien c503ff28b0 Make shaders cross-platform
Translate all piet-gpu shaders into DXIL and MSL; move generated files
into the shader/gen directory.
2021-12-03 15:49:58 -08:00
Renamed from piet-gpu/shader/binning.spv (Browse further)