FA-53285 / Raster memory layout / Member archive
Volume Transfer Skip Footprint: Upload buffer requirement excludes skips/gaps or requires unused trailing row padding · case 05
The returned physical layout descriptor disagrees with the declared buffer mapping at source_required.
Case contract
A 3D upload buffer has independently specified row length, image height, and byte pixel size. A valid subvolume starts after skipped images, rows, and pixels. Destination uses independent row and slice pitches; return all per-row transfer origins. Return the named intermediate layout descriptor and final address fields; all quantities are integer byte offsets unless explicitly stated.
Why this case matters
Offline raster resource, upload, readback, and storage-layout regression model.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| layout fixture 1 | {"destination_required": 12, "destination_rows": [405], "row_bytes": 12, "skip_bytes": 654, "source_origin": 689, "source_required": 12, "source_row_pitch": 72, "source_rows": [689], "source_slice_pitch": 504, "transfers": [[689, 405, 12]]} | {"destination_required": 12, "destination_rows": [405], "row_bytes": 12, "skip_bytes": 654, "source_origin": 689, "source_required": 666, "source_row_pitch": 72, "source_rows": [689], "source_slice_pitch": 504, "transfers": [[689, 405, 12]]} | Failed |
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