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27e6fdd267
Just load the atomic bump counter directly instead of piping it through a shared variable, when workgroupUniformLoad is not available. The value is in fact dynamically uniform, but that depends on the stage not setting its own failure flag, a fairly subtle invariant. I think there was a write-after-read hazard for the reuse of sh_part_count[0]. However, doing the experiment of just changing that doesn't fix the problem on mac. It's possible there's a shader compilation problem (possibly the same one as provoking the storageBarrier workaround in tile_alloc), or also possibly a logic error I'm not understanding. In any case, this change does appear to fix the hangs on mac. Fixes #267 |
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|---|---|---|
| .. | ||
| shared | ||
| backdrop.wgsl | ||
| backdrop_dyn.wgsl | ||
| bbox_clear.wgsl | ||
| binning.wgsl | ||
| clip_leaf.wgsl | ||
| clip_reduce.wgsl | ||
| coarse.wgsl | ||
| draw_leaf.wgsl | ||
| draw_reduce.wgsl | ||
| fine.wgsl | ||
| path_coarse.wgsl | ||
| path_coarse_full.wgsl | ||
| pathseg.wgsl | ||
| pathtag_reduce.wgsl | ||
| pathtag_reduce2.wgsl | ||
| pathtag_scan.wgsl | ||
| pathtag_scan1.wgsl | ||
| tile_alloc.wgsl | ||
| UNLICENSE | ||