DropCollapsedFullScales zeroes the corr of fulls whose frame scale collapsed on
the host copy of the fulls; on the resident-fulls (GPU) path that zero reached
the device only with the corrected corr pushed after the surfaces. The merge
that measures CC1/2 before the correction surfaces runs in between, so on the
GPU it still merged the dropped frames' fulls while the host path excluded
them - the two builds measured different observations.
The corr is now pushed to the device right after the drop, and the later push
covers only the surfaces and the frame rejection.
This changes the input of the two-pass quality guard (cc_half_before_corrections)
on GPU runs where a full scale collapsed; the final merge is unchanged.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
leonarski_fandClaude Opus 5
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