enricobuehler 96e19986bc feat(encode): RGB-direct padded-copy — unaligned modes (1080p) get the EFC path safely ...

Lifts 3aacec53's alignment gate into a mode select: an aligned mode keeps
the true zero-copy direct import; an unaligned one (1080p!) now blits the
visible frame into a per-slot ALIGNED BGRA staging image and duplicates
the edge rows/columns into the 64x16 padding — transfer-only regions in
one vkCmdCopyImage (1080p: visible + 8 row regions; width padding adds a
second self-copy pass in GENERAL), no compute shader. The encode reads
the staging image, never the capture buffer, so the EFC can never read
past a producer allocation (the field GPU hang). Still one ~8 MB copy vs
the CSC path's ~17 MB + dispatch + plane copies. Verdict line:
active(padded-copy). The staging import drops the video profile entirely
(TRANSFER_SRC only).

CPU-payload paths made honest on the way (they were the smoke baseline
AND the software-capture fallback):
- rgb mode: the staging upload is padded CPU-side (edge duplication) so
  the aligned encode-src is fully defined;
- CSC mode: the sampled image is now SOURCE-sized with a matching copy
  extent — the old aligned-size image + tightly-packed buffer sheared
  rows and left garbage rows at unaligned modes (black-bar artifacts;
  YMIN=16 in every smoke frame), which also masked as a 24 dB PSNR
  'regression' against the (correct) padded output.

On-glass (780M, host Mesa 26.0.4): all four smokes pass at 256x256
(direct) AND 250x250 (padded); padded-EFC frames decode perfectly
uniform (YMIN==YMAX) at the exact 709-narrow values (79/148/60 for the
first three fills); CSC-vs-padded PSNR 49.9 dB avg after the baseline
fix. clippy clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-20 20:38:55 +02:00

..

src

feat(encode): RGB-direct padded-copy — unaligned modes (1080p) get the EFC path safely

2026-07-20 20:38:55 +02:00

Cargo.toml

perf(pyrowave): elevated GPU scheduling + global-priority encode queue

2026-07-19 01:02:01 +02:00