forked from unom/punktfunk
enricobuehlerandClaude Opus 4.8
96e19986bc
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>