FA-52757 / Raster memory layout / Member archive

Split Depth Stencil Aspects: Stencil base ignores depth row padding or its own tag · case 02

The returned physical layout descriptor disagrees with the declared buffer mapping at stencil_origin.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

A toy depth-stencil image stores three depth bytes per texel in one plane and one stencil byte per texel in a second plane. Depth rows have one pad byte, stencil rows two; planes begin with distinct four- and six-byte tags. 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 fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
layout fixture 1	`{"allocation_end": 38, "depth_address": 26, "depth_origin": 26, "depth_pitch": 4, "selected_address": 26, "selected_end": 29, "selected_width": 3, "stencil_address": 35, "stencil_origin": 35, "stencil_pitch": 3}`	`{"allocation_end": 39, "depth_address": 26, "depth_origin": 26, "depth_pitch": 4, "selected_address": 26, "selected_end": 29, "selected_width": 3, "stencil_address": 36, "stencil_origin": 36, "stencil_pitch": 3}`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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