FA-10749 / Raster memory layout / Member archive
Subimage row offset · case 04
The horizontal subimage origin is ignored.
Case contract
Extract an in-bounds nonnegative integer rectangular subimage from rectangular row storage, retaining selected row and column offsets.
Why this case matters
A deterministic software graphics stage with explicit channel and coordinate conventions; no hardware, device profile or API behavior is inferred.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| fixture 1 | [[4, 5], [7, 8]] | [[5, 6], [8, 9]] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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