docs(mosaic): preserve fractional scaling probe evidence
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### STEP20C experimental evidence
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- Preserved fractional-scale probe: actual 1.25 uniform/mixed and 1.5 mixed outputs, calibrated logical input, sampled root/nested popup and effects clipping, two exact camera returns and physical settled-damage coverage. PARTIALLY_FEASIBLE; opaque tiled controls, interior shadow, restored Mosaic hit and broader gates remain unqualified. No production/package change.
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- Added a source-only private effects/damage probe with a real translucent SHM buffer and striped background. Both standard controls show 27,594 shadow-overflow pixels on the neighboring output; private Mosaic excludes that sampled spill, renders a visibly filtered blur within its viewport and restores exact settled pixels after three camera pairs. Sampled private damage covers changed pixels, while interior shadow, optimized cache, popup effects and saved buffers remain unqualified. The result is PARTIALLY_FEASIBLE; no production or package files changed.
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- Recorded an effects-probe campaign deviation: replay/trace variants ran 15 camera pairs against the requested maximum of three. All raw runs are retained; the final runner now reserves a finite campaign budget before launch and rejects excess repetitions.
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- Preserved and independently replayed a bounded event-loop pending-input probe. The client flush and server application were observed after decoupled request submission, but no input mutation fell between a matching native headless commit and present in five attempts per private mode. The temporal case remains INCONCLUSIVE / NOT EXERCISED; this research line is closed for the tested backend and geometry. No production or package files changed.
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@ -234,3 +234,16 @@ rebuild reproduced the main counts with one pair under the corrected
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campaign guard. The traced reference had a different effective size, so
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instrumentation neutrality and its cause remain unqualified. See the
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[effects report](design/STEP20C_EFFECTS_DAMAGE_PROBE.md). This adds no contract.
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The preserved [fractional scaling probe](design/STEP20C_FRACTIONAL_SCALING_PROBE.md)
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is **PARTIALLY_FEASIBLE** for static 1.25 uniform/mixed and 1.5 mixed headless
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outputs. Actual modes/PNGs and logical pointer motion were calibrated. Sampled
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root/nested popup and shadow spill disappeared on the neighboring output;
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visible blur, terminal popup columns, two settled camera returns and available
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physical damage were consistent. Opaque tiled-overflow controls, permitted
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interior shadow, restored Mosaic hit, caches and intermediate frames remain
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unqualified. Ten failed early calibrations and their source-provenance limit
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are retained. The two-pair global budget was respected. The next distinct gate
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should test resize/migration of owner/output clips; rotation, saved buffers and
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ABI/package remain separate. This is evidence only: STEP20C stays **NEXT**,
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production multi-output **NOT YET SUPPORTED**, STEP20D–G **PLANNED**.
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@ -173,3 +173,16 @@ The [isolated feasibility probe](design/STEP20C_FEASIBILITY_PROBE.md) is **PARTI
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The later [SceneFX subtree clipping spike](design/STEP20C_SCENEFX_CLIPPING_SPIKE.md) is also **PARTIALLY FEASIBLE**. Its private inherited tree clip stopped tested tiled pixels and pointer hits from crossing the output boundary, including a fully hidden cell, but a real GTK XDG popup rendered and received input on the neighboring output because its scene tree lives in the global popup layer. Dedicated subsurface, saved-buffer, nested-popup and complete effect/damage validation remain open. The spike changed no production library or compositor source; multi-output Mosaic remains **NOT YET SUPPORTED**.
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These limits are reflected in [UX](UX.md), [architecture](ARCHITECTURE.md), and [roadmap](ROADMAP.md). A future step must update those contracts before claiming support.
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The preserved [fractional scaling probe](design/STEP20C_FRACTIONAL_SCALING_PROBE.md)
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is **PARTIALLY_FEASIBLE** for static 1.25 uniform/mixed and 1.5 mixed headless
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outputs. Actual modes/PNGs and logical pointer motion were calibrated. Sampled
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root/nested popup and shadow spill disappeared on the neighboring output;
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visible blur, terminal popup columns, two settled camera returns and available
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physical damage were consistent. Opaque tiled-overflow controls, permitted
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interior shadow, restored Mosaic hit, caches and intermediate frames remain
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unqualified. Ten failed early calibrations and their source-provenance limit
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are retained. The two-pair global budget was respected. The next distinct gate
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should test resize/migration of owner/output clips; rotation, saved buffers and
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ABI/package remain separate. This is evidence only: STEP20C stays **NEXT**,
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production multi-output **NOT YET SUPPORTED**, STEP20D–G **PLANNED**.
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@ -100,3 +100,8 @@ A proposal does not supersede accepted canonical contracts or assert implementat
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| [STEP20B](STEP20B.md) | Historical | First scrollable-row implementation evidence |
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STEP reports record what was observed and decided at the time. They are **not** the canonical source for current behavior. When a STEP report conflicts with current canonical documentation, the canonical documentation wins. The original French reports are preserved as historical artifacts; their opening notices point here.
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Preserved experimental evidence: [fractional scaling probe](design/STEP20C_FRACTIONAL_SCALING_PROBE.md)
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and [source fixture](../tooling/probes/step20c-fractional-scale/README.md).
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PARTIALLY_FEASIBLE for the sampled static scale matrix, independently replayed
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without new camera pairs; no production qualification.
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@ -177,3 +177,16 @@ rebuild reproduced the main counts with one pair under the corrected
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campaign guard. The traced reference had a different effective size, so
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instrumentation neutrality and its cause remain unqualified. See the
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[effects report](design/STEP20C_EFFECTS_DAMAGE_PROBE.md). This adds no contract.
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The preserved [fractional scaling probe](design/STEP20C_FRACTIONAL_SCALING_PROBE.md)
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is **PARTIALLY_FEASIBLE** for static 1.25 uniform/mixed and 1.5 mixed headless
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outputs. Actual modes/PNGs and logical pointer motion were calibrated. Sampled
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root/nested popup and shadow spill disappeared on the neighboring output;
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visible blur, terminal popup columns, two settled camera returns and available
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physical damage were consistent. Opaque tiled-overflow controls, permitted
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interior shadow, restored Mosaic hit, caches and intermediate frames remain
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unqualified. Ten failed early calibrations and their source-provenance limit
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are retained. The two-pair global budget was respected. The next distinct gate
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should test resize/migration of owner/output clips; rotation, saved buffers and
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ABI/package remain separate. This is evidence only: STEP20C stays **NEXT**,
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production multi-output **NOT YET SUPPORTED**, STEP20D–G **PLANNED**.
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473
docs/design/STEP20C_FRACTIONAL_SCALING_PROBE.md
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473
docs/design/STEP20C_FRACTIONAL_SCALING_PROBE.md
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@ -0,0 +1,473 @@
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# STEP20C fractional scaling and viewport probe
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**Status: EXPERIMENTAL / PARTIALLY_FEASIBLE for the sampled static matrix.**
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Source-only evidence preserved for the fractional freeze. STEP20A DONE, STEP20B EXPERIMENTAL, STEP20C NEXT,
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STEP20D–G PLANNED; production multi-output NOT YET SUPPORTED. No UX contract
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or production change is authorized. The temporal headless line stays closed
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at INCONCLUSIVE; no additional transaction contract is introduced.
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## Scientific question and historical baseline
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Scale-1 private inherited clips excluded sampled tiled/popups pixels and hits
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at negative origin. The effects report demonstrates neighboring shadow
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exclusion and visible blur, but no permitted interior Mosaic shadow,
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optimized-cache invalidation, saved-buffer or every-frame qualification.
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Fractional conversion can expose rounding, missing boundary pixels, wrong
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output damage or disagreement with logical hit testing. These are hypotheses,
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not established defects. Instrumentation is passive; no algorithm, shader,
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damage decision, callback order, transaction or public ABI may be changed.
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## Requested geometry and acceptance gate
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| Geometry | HEADLESS-1 mode/scale/origin | HEADLESS-2 mode/scale/origin |
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| --- | --- | --- |
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| G0 | 800×600 / 1 / (-800,0) | 800×600 / 1 / (0,0) |
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| G1 | 1000×750 / 1.25 / (-800,0) | 1000×750 / 1.25 / (0,0) |
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| G2 | 1000×750 / 1.25 / (-800,0) | 800×600 / 1 / (0,0) |
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| G3 optional | 1200×900 / 1.5 / (-800,0) | 800×600 / 1 / (0,0) |
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Expected logical rectangles are 800×600. Record actual active/name, global
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rect, current physical mode, scale and transform from get_outputs, plus real
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PNG dimensions. Rejected/normalized geometry is INCONCLUSIVE, not PASS or
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BLOCKED. G3 is allowed only after G1/G2 calibration succeeds. G0 is a small
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calibration control, not a new historical campaign.
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## Coordinate contracts to audit before adapting the fixture
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Global Wayland, Mosaic geometry, camera scroll and virtual-pointer points are
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logical. Output-local logical = global minus output origin exactly once.
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SceneFX scales logical boxes/regions into output-buffer physical coordinates;
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transform is normal in this matrix. Audit actual floor/ceil/round rules,
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pixman intersections, fractional conservative expansion, texture filtering,
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source/destination boxes and damage conversions. Do not use arbitrary integer
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truncation as the expected physical clipping rule. Never multiply scroll_x
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by scale. At expected geometry, pointer injection remains sent_x=global_x+800
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with logical extent 1600×600. Verify enter/motion coordinates and left/right
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buttons on both outputs before scoring clipping/input.
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Captures must record their real dimensions and applied output scale/origin,
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logical and physical resolutions, timestamps and hashes. Predeclare logical
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ROIs: left interior (300,100,700,500), left boundary (720,50,800,550), right
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boundary (0,50,80,550), reference (250,250,550,500). Physical ROIs conservatively
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cover floor(lower*scale)..ceil(upper*scale); retain full-image differences.
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Boundary bands and adjacent columns are never removed after anomalies.
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Compare equivalent logical regions, not historical pixel counts.
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## Comparisons, scenarios and finite budget
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Each qualified geometry compares ordinary SwayFX splith, private splith and
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private Mosaic with identical deterministic clients. Controls must demonstrate
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actual overflow before a clipping claim. Reuse preserved valid-anchor nested
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SHM client, opaque client, deterministic background, reference and virtual
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pointer. C adaptations, if needed, are private patches with pinned base/hash.
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S0: IPC/mode/PNG/scene/pointer calibration gates all later input claims.
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S1: inspect owner/tiled boundary pixels and logical hits.
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S2: map TOPLEVEL→POPUP_A→POPUP_B using genuine button serials; retain
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configure/ack/map, parent identities and anchor validity; compare visible
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and clipped hits. Exterior clicks which dismiss the chain need separate runs.
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S3: predeclared grid around x=0 and complete physical boundary bands.
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S4: FX0/FX1/FX2, visible control shadow and filtered blur; distinguish draw
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clip from sampling and cache semantics. Interior shadow remains unqualified
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unless new pixels demonstrate it.
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S5: one 400→1280→400 pair per G1/G2 Mosaic run with A/B mapped; no hidden
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click, preserve objects and test returned hits.
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S6: observed same-output damage extents compared to settled changed pixels,
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with explicit physical coordinate provenance and fractional expansion.
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S7: layout splith with objects open, clear clips and preserve ordinary hits.
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**Global B budget: two pairs total, across all attempts and geometries.**
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Reserve before launching under a campaign lock; failure consumes reservation.
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G0/G3 and all standards use zero pairs. One persistent campaign ledger belongs
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to the single new lab, never reset or bypass through another clone. Untestable
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variants remain NOT TESTED. Preserve every attempted run and real exit code.
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## Criteria and limits
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FEASIBLE requires applied geometry, calibrated logical input and physical
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captures, actual control overflow, excluded sampled forbidden pixels/hits,
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correct visible interactions, active effects and observed restoration/damage.
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PARTIALLY_FEASIBLE leaves effects/rounding/transitions/damage partly qualified.
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INCONCLUSIVE means geometry/control/fixture cannot establish conversions.
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BLOCKED requires reproducible forbidden pixels/hits, scene corruption or
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blocking regression; preserve a minimal reproducer and do not repair algorithm.
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Rotation, migration/resize/hotplug, full animations, all optimized caches,
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saved buffers, other renderers and production ABI/package are NOT TESTED.
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Sources/fixtures are local in tooling/probes/step20c-fractional-scale;
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all builds, logs, PNGs, generated protocols, sockets and manifests stay outside
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Git. Final analysis must answer Q1–Q11 with these evidence limits.
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## Source audit before fixture adaptation
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Pinned Mosaic `cd550382b311efdbfe3ed892f4e1d281d852e754`, SceneFX
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`37ccd723bef49e6891156ffafce8f549f01446cc`; locally retained wlroots source
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describes exactly tag 0.20.2 (the installed linked version also reports 0.20.2).
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Sway output configuration sets round(scale*120)/120 after the physical mode;
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1.25 and 1.5 are exactly representable protocol steps. output_update_position
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copies the logical layout box. wlroots effective_resolution divides transformed
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physical integer dimensions by scale with integer assignment; these test modes
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yield exactly 800×600 without fractional logical extent.
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SceneFX scale_box rounds both edges with round(), computing width from the
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rounded far edge minus rounded origin. wlr_region_scale uses floor lower / ceil
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upper. scale_region(...,true) additionally expands by one physical pixel for
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fractional scales. scene_damage_outputs subtracts scene-output logical origin,
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scales/expands and transforms, then scene_output_damage clips to physical
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output dimensions. TEMPORAL_DAMAGE is emitted there: **already physical
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buffer-local extents**, never multiply those traces by scale again.
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Opaque background culling also expands one pixel at fractional scale and
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reintersects damage. Buffer damage may expand for linear filtering; ordinary
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buffer filter mode and bilinear blur sampling differ. Draw clips pass through
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logical_to_buffer_coords; texture boxes and pixman regions need not share
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identical integer bounds. An integral boundary x=0 does not exercise every
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possible fractional edge offset.
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The private inherited clip intersects ancestor logical rectangles; popup clips
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are converted from the applied global viewport into root-popup local coordinates.
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node_at uses floor(global point) for its logical query and checks inherited
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point_inside_clip before surface input. Shadows/blur nodes do not accept input.
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wlr_cursor_absolute_to_layout_coords uses mapping.width*normalized_x+mapping.x,
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with the combined output-layout box if no explicit device mapping. The private
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pointer normalizes sent integers by logical extent, so +800 is origin removal,
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not physical scaling. No pointer C adaptation is needed for these 800×600
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logical outputs. The runner must empirically verify both clients' local points.
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## Retained fixture incidents
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First G0 calibration attempt (zero camera pairs) placed the left ordinary
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floating reference at x=-1550: `move position -750 300` was output-relative,
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adding the -800 output origin. The bounds check rejected injection before
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input scoring. The fixture now uses `move absolute position -750 300` and
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continues to derive points from actual IPC content coordinates. This is a
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fixture command error, not a Mosaic scaling defect. The failed run is retained.
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The next zero-pair standard calibration attempts retained a 25-logical-pixel
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vertical discrepancy between the floating reference's IPC-derived point and
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its client-local enter/motion. The intended local (60,50) was reported (60,75).
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Mosaic's same calibration passed, so no scale-specific defect is inferred.
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To avoid assigning frame-decoration geometry to the test surface, both ordinary
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references now explicitly use `border none`; local coordinates are still checked
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against the client log, not accepted from IPC alone. All failed runs remain in
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the lab manifest. This fixture change is documented before further experiments.
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The ordinary control is now also rebuilt from pristine pinned SwayFX 0.6,
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`fd71a6bdc061bd633b488ae7b83e8a6981d22f86`, in standard-build and uses the
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installed unmodified SceneFX. Preliminary installed-Sway calibrations remain
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retained attempts, not the final comparative standard control.
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Border none alone did not remove the standard reference's stale IPC frame
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geometry (rect y=325 while surface origin is y=300). Final calibration uses
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explicit absolute placement origins (-750,300) and (250,250), then requires
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client enter=(20,30), motion=(60,50), and both button deliveries. IPC frame
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and window geometry are recorded separately. This checks known placement
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against real client surface coordinates; the IPC decoration discrepancy is
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retained rather than treated as the surface-coordinate authority.
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The stricter nominal-placement calibration then failed in Mosaic, where the
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surface retained a different vertical placement from standard. Final S0
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therefore distinguishes requested placement from measured surface origin:
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first enter determines the actual surface origin, a second independent global
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move of (+40,+20) must produce the identical logical local delta, and both
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buttons must arrive. Initial x=20 and an interior y are asserted. Record both
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origins and the IPC frame separately. This is an empirical coordinate
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calibration, not a promise that a pending move command defines applied geometry.
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No clipping/input scenario is scored before this two-point calibration passes.
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The b_cross main runs succeeded in G1/G2, including one camera pair per
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Mosaic run with A/B mapped. Their visible references and returns are identical
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on both outputs. To distinguish root from nested boundary coverage, add a
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zero-camera `both_cross` comparison in each of the three modes for G1/G2,
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with the retained client's valid anchors A=(350,80) in TOPLEVEL 420×320 and
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B=(160,60) in A 350×170. Exterior clicks stay in these distinct runs. This
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uses an existing client variant, not a C or clipping algorithm adaptation.
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Add two final zero-camera root-input controls: in both_cross Mosaic G1/G2,
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click (20,140), the forbidden root-A portion above B's top edge. Keep them
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separate from the (20,190) nested-B dismissal controls. The existing standard
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runs already prove real root-A delivery at their configured visible points.
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Do not spend another camera pair to qualify restored Mosaic hit testing:
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the two existing S5 runs captured visual restoration, but did not inject a
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new visible B button before switching to standard layout. That assertion
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remains NOT TESTED under the exhausted budget.
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## SWAYFX_MOSAIC_STEP20C_EFFECTS_FREEZE_AND_FRACTIONAL_SCALING_PROBE_V1
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### Phase A freeze gate
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Initial main/local remote references were `542d9b9c945b22cf9134a4a643c8dc763b34607d`,
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with only the expected effects fixture/report and five documentation files dirty.
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The historical 890-entry evidence and 29-entry source manifests verified at
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`5fbe12b0312f2d82b3c5414251ae57345db8d25a83cfc018947308d40e752b42` and
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`8fbd0cf927e3e2690a77aeaf2288072c183ef1dbe8f856cb63e0442454614d95`.
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Historical client/trace patches retain their announced hashes, including the
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separate compiled trace provenance. The report preserves 15 historical camera
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pairs against a maximum of three; default repetition across five Mosaic runs
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caused the excess. Selecting three pairs does not authorize the other twelve.
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A fresh independent clone rebuilt the private chain; the new three-control
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replay consumed one pair total and reproduced 27,594 standard shadow-spill
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pixels / zero Mosaic, real filtered blur and one exact settled camera return.
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New evidence/source hashes are listed in the effects report. The reservation
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block passed locking, failure/interruption, exhaustion, zero-pair and retained-run
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checks. Historical reference geometry differed (640×480 untraced versus 300×250
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traced); missing checker causality and logging neutrality remain unqualified.
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Interior shadow, optimized caches, source sampling, popups, saved buffers and
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intermediate frames remain limited as documented.
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The unique authorized commit is
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`aefee44c636a1529eca9a082658fd80b4d17cf5f`, title
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`docs(mosaic): preserve SceneFX effects and damage probe evidence`.
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Normal pushes to origin/main and github/main succeeded; direct ls-remote checks
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returned that SHA for both. Worktree was clean at the A→B gate.
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Validation qualification: ordinary `git diff --check` passed before adding new
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files, but `git diff --cached --check` flagged historical trace-patch **context**
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lines (space+tab and the blank context marker). Those bytes are valid unified
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patch syntax and belong to the mandated preserved SHA; they were not rewritten.
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The commit/push proceeded with this explicitly classified patch-format exception.
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Builds, controlled patch application, C17, model 1/1 and link checks passed.
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Do not describe the unfiltered indexed whitespace check as PASS.
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`SWAYFX_MOSAIC_EFFECTS_DAMAGE_FREEZE=PASS`
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### Phase B laboratory and actual geometry
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Independent full clone `/tmp/step20c-fractional-v1-clone` at the A commit;
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private lab `/tmp/swayfx-mosaic-nested-grab-0DfvGCxn`. Private SceneFX/Mosaic
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were rebuilt from the pinned preparer chain, with the historical clip, hidden
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owner guard, damage and passive presentation patches. No algorithm changed.
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Pristine upstream SwayFX 0.6 was separately archived and built in standard-build;
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final ordinary controls use it, linked to installed unmodified SceneFX. Private
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controls link only their process to the private library. wlroots 0.20.2 source
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HEAD `d783533489e1f75d6886c2ab5c5960090ef268f8` is clean at tag 0.20.2.
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| Geometry | Actual H1 mode / scale / logical rect | Actual H2 mode / scale / logical rect | Scope |
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| --- | --- | --- | --- |
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| G0 | 800×600 / 1 / (-800,0,800,600) | 800×600 / 1 / (0,0,800,600) | Small calibration only |
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| G1 | 1000×750 / 1.25 / (-800,0,800,600) | 1000×750 / 1.25 / (0,0,800,600) | Three modes, b_cross + both_cross |
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| G2 | 1000×750 / 1.25 / (-800,0,800,600) | 800×600 / 1 / (0,0,800,600) | Three modes, b_cross + both_cross |
|
||||
| G3 | 1200×900 / 1.5 / (-800,0,800,600) | 800×600 / 1 / (0,0,800,600) | Optional three-mode b_cross, no camera |
|
||||
|
||||
All active, normal transform, physical modes and scales actually accepted;
|
||||
PNGs match each target output's physical mode. All logical viewports remain
|
||||
800×600. No requested geometry is mislabeled from a command's success alone.
|
||||
SceneFX FX reports GLES 3.2 Mesa 26.2.4-arch1.1 / Radeon 780M radeonsi.
|
||||
|
||||
### Calibration, geometry and input
|
||||
|
||||
Qualified final runs pass ordinary-reference enter on each output, independent
|
||||
(+40,+20) local motion, both buttons, crossing and return. Signed normalization
|
||||
is sent_x=global_x+800, extent 1600×600; physical scales never enter injection.
|
||||
Requested reference placement, actual measured surface origin, IPC frame and
|
||||
surface-local coordinates are recorded separately. Earlier placement, frame-offset
|
||||
and already-entered-pointer assumptions caused ten retained calibration failures,
|
||||
all with zero reserved camera pairs. One additional calibration adapter attempt
|
||||
had an escaped regular-expression defect; its failed log is among those ten.
|
||||
No failed calibration is counted as clipping evidence. A forced move outside
|
||||
before enter removes the already-entered-pointer ambiguity.
|
||||
|
||||
Both XDG grabs use actual received left-button serials unchanged; parent identities,
|
||||
configure/ack/map and logs are retained. All observed grabs validate. b_cross
|
||||
anchors A=(200,80) in TOPLEVEL 420×320 and B=(220,60) in A 300×170 are valid;
|
||||
both_cross anchors are also inside their actual parent geometry. No invalid-anchor
|
||||
campaign is reused. Visible B right buttons arrive in each main run, including
|
||||
after standard-layout return; there is no popup_done in those main runs.
|
||||
|
||||
For b_cross Mosaic, B's applied configured global box is (-138,165,300,130).
|
||||
On H1 at 1.25, local x=662 maps to rounded destination x=828; the visible
|
||||
physical box ends at x=1000, y=206..369. Its 172×163 exact-color pixels fill
|
||||
that retained rectangle. At 1.5, the corresponding box starts x=993 and ends
|
||||
at x=1200, y=248..443 (195 rows). Conservative region floor/ceil and extra
|
||||
physical expansion differ from rounded destination edges; those differences
|
||||
are not automatically classified as leaks.
|
||||
|
||||
The both_cross grid records B motion x=46/47,y=25 at global x=-2/-1,y=190,
|
||||
then B leave at x=0, with no new popup events at x=1,2,20. Separate right clicks
|
||||
at (20,190) produce no popup button under Mosaic and dismiss both grabs.
|
||||
Separate root-A clicks at (20,140), above B, likewise produce no popup button
|
||||
and dismiss the chain in G1/G2 Mosaic. This is grab dismissal, not universal
|
||||
click-through. The b_cross standard controls actually receive a popup button at
|
||||
(20,190), without dismissal. The both_cross standard (20,190) point is outside
|
||||
its differently placed popup; its dismissal is ordinary behavior, not a clip
|
||||
comparison. Their configured visible A/B points still demonstrate real hits.
|
||||
|
||||
### Pixels, effects and rounding
|
||||
|
||||
| Geometry/mode | FX1 changed H2 pixels | FX2 changed H1 pixels | FX2 changed H2 pixels |
|
||||
| --- | ---: | ---: | ---: |
|
||||
| G1 ordinary / private splith | 43,500 each, columns 0–57 | 175,665 each | 0 |
|
||||
| G1 Mosaic | 0 | 499,749 | 0 |
|
||||
| G2 ordinary / private splith | 27,594 each, columns 0–45 | 175,665 each | 0 |
|
||||
| G2 Mosaic | 0 | 499,749 | 0 |
|
||||
| G3 ordinary / private splith | 27,594 each, columns 0–45 | 252,546 each | 0 |
|
||||
| G3 Mosaic | 0 | 718,983 | 0 |
|
||||
|
||||
In the predeclared Mosaic interior ROI at 1.25, luminance deviation falls
|
||||
51.499588→0.782573 and adjacent contrast 13.004008→0.747014. At 1.5 they fall
|
||||
51.498856→0.711986 and 12.896494→0.689552. Standard 1.25 ROI contrast falls
|
||||
3.350701→0.316020 (the ROI also contains non-owner pixels). The visible image
|
||||
and quantitative smoothing establish filtering beyond fixed alpha compositing.
|
||||
FX1 changes zero left Mosaic pixels: authorized interior shadow is still
|
||||
INCONCLUSIVE, not PASS. Optimized cache and outside-only sampling remain NOT TESTED.
|
||||
|
||||
Main b_cross standard right images gain 127,200 popup pixels in G1 and
|
||||
81,200 in G2/G3; private standards agree. Mosaic gains **zero pixels anywhere
|
||||
on H2** versus its effects-off reference, not just zero exact popup colors.
|
||||
both_cross standard right differences are 121,575 in G1 and 77,600 in G2;
|
||||
Mosaic is again unchanged. Both root and nested permitted pixels remain visible.
|
||||
|
||||
Complete last four H1 columns retain B counts 163 per column at 1.25, 195 at
|
||||
1.5. both_cross additionally retains 75 A pixels per last column at 1.25 above
|
||||
B. First four H2 columns contain no A/B pixels under Mosaic. All predeclared
|
||||
boundary ROIs and whole neighboring images remain in analysis; no anomalous
|
||||
border is discarded. No forbidden antialias/filter contribution is observed.
|
||||
This establishes sampled edge retention, not a universal absence of lost visible
|
||||
pixels for every fractional subpixel phase.
|
||||
|
||||
The named historical capture `S1-opaque-reference` is actually an effects-off
|
||||
reference with the ARGB owner; it is not proof of an opaque tiled spill.
|
||||
Future source fixture uses `S1-effects-off-reference`; the analyzer preserves
|
||||
compatibility with the old filenames. The opaque kitty is present, but the
|
||||
standard tiled content itself does not demonstrate a crossing visual rectangle.
|
||||
S1's independent opaque tiled-overflow prerequisite is **INCONCLUSIVE**; shadow
|
||||
and popup overflow must not be substituted for that specific assertion.
|
||||
|
||||
### Camera, damage and standard return
|
||||
|
||||
Exactly two pairs ran: one in G1 Mosaic, one in G2 Mosaic, all successful.
|
||||
Ledger reservations=2, completed pair events=2. All other attempts reserve zero.
|
||||
No later run resets/bypasses the ledger. A third requested pair is refused with
|
||||
exit 2 before creating a run. Offline real-reservation tests pass lock,
|
||||
interruption, launch failure, exhaustion, zero and missing-ledger rejection.
|
||||
|
||||
Each main hidden state contains zero exact A/B pixels on both outputs, with a
|
||||
recorded empty owner intersection and root hidden guard. Objects stay mapped,
|
||||
no popup_done occurs during no-click hiding, and return PNGs exactly match the
|
||||
pre-hide chain reference on both outputs. The return's Mosaic hit/button before
|
||||
switching layouts is **NOT TESTED**; the budget is not increased to repair that
|
||||
omission. S7 subsequently clears clips, restores standard geometry, preserves
|
||||
A/B and delivers a second B right button without unexpected dismissal.
|
||||
|
||||
Main private damage events: G1 standard 981 / Mosaic 936; G2 924 / 818;
|
||||
G3 918 / 761. Available physical buffer-local extents cover every changed pixel
|
||||
between the analyzed settled capture windows; no uncovered changed pixel is
|
||||
measured. Ordinary controls have no native damage instrumentation. Extents
|
||||
can be broad; fractional expansions are source-audited but their minimum extent
|
||||
and every intermediate frame are not qualified. Native commit/present logs are
|
||||
retained as passive context, not a reopened temporal campaign or atomic input
|
||||
identity proof.
|
||||
|
||||
### Reproducibility, validation and remaining limits
|
||||
|
||||
42 attempted runs / 32 without fixture failure / 10 failed early calibrations;
|
||||
680 PNGs. All retained in the complete manifest, including excluded attempts.
|
||||
Early reusable generated calibration filenames were overwritten; exact generated
|
||||
source for every failed early attempt is not available. Their logs/configs/PNGs
|
||||
and documented defects remain. Final attempts save unique generated source and
|
||||
per-run source copies; main sources are retained. This provenance limitation is
|
||||
explicit and does not make the final reproducer depend on a historical lab.
|
||||
|
||||
Evidence manifest (1,986 entries) and separate source manifest (39 entries)
|
||||
verify; exact final hashes are recorded below after final synchronization.
|
||||
The manifests include the final analysis, metadata, budget, retained run artifacts,
|
||||
private source inputs and fixture sources. Builds/binaries/logs/images/manifests
|
||||
remain outside Git. Final fixture contains prepare.sh, run.py, analyze.py,
|
||||
test-budget.py and README.md; no new C adaptation or algorithmic patch was added.
|
||||
|
||||
Shell syntax, Python AST including generated runners, standalone C17 clients
|
||||
with warnings as errors, pinned controlled patch application, fresh private
|
||||
SceneFX/Mosaic and pristine-standard builds, model 1/1, actual scale/PNG checks,
|
||||
pointer calibration, grabs, clip traces, pixel/damage analysis and manifest
|
||||
verification pass. Final production paths, historical patches, cumulative patch,
|
||||
PKGBUILD and UX are unchanged against initial HEAD. Each runtime is removed;
|
||||
no lab process or private socket remains. No installation, live IPC, daily-session
|
||||
operation or STEP20D work was performed. Phase B remains uncommitted/unpublished.
|
||||
|
||||
Remaining NOT TESTED or limited: rotation, resize/migration/hotplug, full animations,
|
||||
all optimized caches, saved buffers, other renderers, source-sampling influence,
|
||||
intermediate frames, all subpixel edge phases and production ABI/package. No new
|
||||
reproducible clipping leak or scene corruption was demonstrated.
|
||||
|
||||
### Architectural answers
|
||||
|
||||
| Question | Evidence-backed answer |
|
||||
| --- | --- |
|
||||
| Q1 viewport coherence | Yes in sampled applied static G1/G2/G3: 800×600 logical viewport, independent physical scaling, camera remains logical. |
|
||||
| Q2 forbidden rounding pixels | None observed in whole H2 popup/effect comparisons and retained boundary bands. |
|
||||
| Q3 missing visible pixels | None in sampled final columns/known popup boxes; all fractional phases and opaque tiled boundary are not qualified. |
|
||||
| Q4 hit/render agreement | Yes at calibrated points and x=-2,-1,0,1,2,20 grid; no same-frame atomic identity claim. |
|
||||
| Q5 nested XDG clipping | Root and child both_cross/b_cross clips exclude sampled H2 pixels and forbidden buttons while preserving visible interactions. |
|
||||
| Q6 true grabs | Both real serials unchanged, configure/ack/map and visible buttons succeed; outside dismissal remains normal. |
|
||||
| Q7 shadow/blur | Shadow-spill exclusion and real blur persist; interior shadow/cache/sampling limits persist. |
|
||||
| Q8 uniform versus mixed | No clipping/input divergence found; physical counts differ as expected with each output's scale. |
|
||||
| Q9 damage conversion | Source-audited physical extents cover settled measured changes; no minimal/every-frame proof. |
|
||||
| Q10 redesign required | No reproduced defect here forces a private algorithm change; production gates remain open. |
|
||||
| Q11 next gate | Resize/migration: these results use fixed logical boxes, while the calibration exposed frame/applied-placement distinctions; verify owner/output/clip updates as geometry actually changes. Rotation, saved buffers and ABI/package remain separate subsequent gates. |
|
||||
|
||||
`SWAYFX_MOSAIC_FRACTIONAL_SCALING_PROBE=PARTIALLY_FEASIBLE`
|
||||
|
||||
Overall architectural conclusion: **UNDECIDED**. Observed static fractional
|
||||
clip behavior is viable, but S1 prerequisite, interior shadow and restored
|
||||
Mosaic hit are insufficient for complete requested-matrix qualification.
|
||||
No production qualification or new transaction/UX contract follows.
|
||||
|
||||
`SWAYFX_MOSAIC_STEP20C_EFFECTS_FREEZE_AND_FRACTIONAL_SCALING_PROBE_V1=PARTIALLY_FEASIBLE`
|
||||
|
||||
Final source manifest SHA-256 (39 entries): `a553a1106297ae21819a6f00ffea681cba88996135e28feea393b1b37a1f1c5d`.
|
||||
|
||||
Final evidence manifest SHA-256 (1,986 entries): `b47ddab0be8f60b1fd43576fcdc2ca0dbcc5fee19b4c8faf343b648c3ed36fdd`.
|
||||
Both verified entry by entry after final fixture synchronization. The final
|
||||
ordinary/private standard FX0/FX1/FX2/popup PNGs are pixel-identical in G1/G2/G3.
|
||||
|
||||
## Fractional evidence freeze — 2026-10-12
|
||||
|
||||
The initial main/local origin/main/github/main references all matched
|
||||
`aefee44c636a1529eca9a082658fd80b4d17cf5f`; only this fixture/report and the
|
||||
five expected documentation files were dirty. No unrelated changes were found.
|
||||
Both historical manifests matched their announced hashes and every one of
|
||||
39 source / 1,986 evidence entries verified before documentation edits.
|
||||
The 42 attempts, 32 successful fixtures, ten calibration failures and 680 PNGs
|
||||
were independently counted. All observed grab serials matched their received
|
||||
buttons. Both historical camera returns changed zero pixels on both outputs;
|
||||
the ledger consumed exactly two pairs. The ten exclusions remain fixture
|
||||
failures, with the overwritten early-source limitation retained above.
|
||||
|
||||
A new full clone `/tmp/step20c-fractional-freeze-clone-v1` reconstructed private
|
||||
SceneFX/Mosaic, pristine pinned SwayFX and the C17 clients. Its disposable lab
|
||||
is `/tmp/swayfx-mosaic-nested-grab-UZe5sYFr`. Seven runs passed: G1 ordinary
|
||||
calibration, then b_cross outside scenarios in all three modes for G1 and G2.
|
||||
Each run calibrated both logical references; all twelve popup grabs used real
|
||||
unchanged serials and mapped. Ordinary/private splith added 127,200 H2 popup
|
||||
pixels in G1 and 81,200 in G2. Mosaic added zero H2 pixels, retained visible
|
||||
popup pixels, and delivered no popup button for the exterior click; both
|
||||
popup_done events followed the exterior grab dismissal. Real modes, normal
|
||||
transforms, scales and per-output physical PNG dimensions matched G1/G2.
|
||||
Boundary hover records and passive clip logs are retained. The actual FX
|
||||
renderer reports GLES 3.2 Mesa 26.2.4-arch1.1 / Radeon 780M radeonsi.
|
||||
Available private physical damage extents covered all measured settled changed
|
||||
pixels; ordinary SwayFX has no such native instrumentation.
|
||||
|
||||
The replay reserved **zero new camera pairs**, retaining the historical 2/2
|
||||
budget as the sole camera evidence. No restored-Mosaic hit assertion was added.
|
||||
Shell syntax, fixture/generated Python AST, C17 -Werror clients, controlled
|
||||
patch application and all three builds passed; Meson model passed 1/1.
|
||||
Offline reservation tests passed. Documentation links and git diff --check
|
||||
passed. Production sources, historical patches, cumulative patch, PKGBUILD
|
||||
and UX remained unchanged. Per-run runtime cleanup removed private sockets
|
||||
and terminated owned children. No system installation or live IPC was used.
|
||||
|
||||
New source manifest: 974 entries, SHA-256
|
||||
`c527db9988223fc51d056fdfe8d155ea293c25d1f7361b0aaf93b72be1f06869`.
|
||||
New complete freeze evidence manifest: 443 entries, SHA-256
|
||||
`54968808f6df7d23b142d3d9decf975eb2378c1c3e07649332120f66fcfd2722`.
|
||||
Both live under the new lab's fractional-results directory; historical
|
||||
manifests were not rewritten. Sources in the new manifest reflect the exact
|
||||
pre-publication replay fixture, including its then-local documentation.
|
||||
|
||||
Verdict remains **PARTIALLY_FEASIBLE**, architectural conclusion **UNDECIDED**.
|
||||
Opaque tiled overflow remains INCONCLUSIVE, permitted interior shadow remains
|
||||
INCONCLUSIVE, and a new Mosaic hit after historical camera return remains
|
||||
NOT TESTED. Rotation, dynamic geometry/ownership, optimized caches, sampling,
|
||||
saved buffers, intermediate frames, subpixel phases and ABI/package remain
|
||||
open gates. This freeze adds source-only evidence, not a production contract.
|
||||
92
tooling/probes/step20c-fractional-scale/README.md
Normal file
92
tooling/probes/step20c-fractional-scale/README.md
Normal file
|
|
@ -0,0 +1,92 @@
|
|||
# Fractional-scale source fixture
|
||||
|
||||
**EXPERIMENTAL / preserved source-only evidence, PARTIALLY_FEASIBLE.** Read the
|
||||
[protocol](../../../docs/design/STEP20C_FRACTIONAL_SCALING_PROBE.md) first.
|
||||
Reconstruct private pinned sources through the effects preparer in a new full
|
||||
clone. The scaling runner adapts only fixture Python; no render,
|
||||
clip, damage, shader, input decision or ABI changes. Artifacts stay in the
|
||||
single temporary lab. All camera runs reserve from a two-pair global ledger.
|
||||
|
||||
## Reproduction from sources
|
||||
|
||||
Use a full clone containing base commit
|
||||
`aefee44c636a1529eca9a082658fd80b4d17cf5f` and the preserved fractional
|
||||
fixture. No historical lab is required. `prepare.sh` rebuilds pinned
|
||||
private SceneFX/Mosaic and C17 clients through the preserved preparer chain,
|
||||
then builds a pristine SwayFX 0.6 standard control. It prints a fresh LAB path.
|
||||
All generated protocols, libraries and binaries stay there; nothing is installed.
|
||||
|
||||
```sh
|
||||
sh tooling/probes/step20c-fractional-scale/prepare.sh
|
||||
# Set LAB to the exact printed path; use this same lab for the entire campaign.
|
||||
python tooling/probes/step20c-fractional-scale/test-budget.py
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" control G0 --scenario calibration
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" control G1
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" private_standard G1
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" private_mosaic G1 --camera-pairs 1
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" control G2
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" private_standard G2
|
||||
python tooling/probes/step20c-fractional-scale/run.py "$LAB" private_mosaic G2 --camera-pairs 1
|
||||
python tooling/probes/step20c-fractional-scale/analyze.py "$LAB"
|
||||
```
|
||||
|
||||
Every run first calibrates both ordinary references. Failed runs are retained
|
||||
and consume any reserved pair. A lab-wide flock serializes runners, persisted
|
||||
reservations survive launch failure/interruption, and a missing ledger in an
|
||||
existing campaign is rejected. Camera default is zero; after two reservations,
|
||||
only zero-pair variants are accepted. `test-budget.py` executes the actual
|
||||
reservation block with the launch tail replaced; it never launches a compositor.
|
||||
Do not use another lab or delete the ledger to bypass exhaustion.
|
||||
|
||||
For G1/G2 root/nested comparisons, use `--scenario outside --placement
|
||||
both_cross` in each mode, with zero pairs. The existing b_cross variant is the
|
||||
default; its separate outside click is at logical (20,190). Root-A forbidden
|
||||
input uses a separate Mosaic both_cross run with `--outside-y 140`. Optional
|
||||
G3 main uses zero pairs in each mode after G1/G2 calibration succeeds.
|
||||
The fully qualified matrix is explicitly listed in the report; absence of a
|
||||
scenario in this short command example is not a PASS.
|
||||
|
||||
## Coordinate and artifact contract
|
||||
|
||||
The runner sets requested physical modes and scales in private configs, checks
|
||||
get_outputs logical 800×600 rectangles and normal transforms, and gives grim
|
||||
an explicit per-output scale. It checks actual PNG sizes against physical modes.
|
||||
Global pointer points remain logical: sent_x=global_x+800, extent 1600×600.
|
||||
Calibration records requested placement, measured surface origin, independent
|
||||
local-motion delta and left/right delivery. IPC frame coordinates are separate.
|
||||
|
||||
The analyzer retains full-image differences, predeclared logical/physical ROIs,
|
||||
complete edge columns, exact popup colors, configured popup-box edge conversions,
|
||||
contrast/luminance metrics and settled damage coverage. Damage trace extents are
|
||||
already physical. Equality of full neighboring PNGs also detects non-exact-color
|
||||
filtering pixels. Exact-color counts alone are not treated as a leak detector.
|
||||
Captured images and input logs are related observations, not atomic frame identity.
|
||||
|
||||
All attempted runs, including ten failed early calibration fixtures, remain in
|
||||
`/tmp/swayfx-mosaic-nested-grab-0DfvGCxn` for this execution. The final adapter
|
||||
saves a uniquely named generated source per attempt and a source copy per run.
|
||||
Earlier reusable calibration source names were overwritten: exact generated
|
||||
sources for every early failed attempt are not all retained. Their logs,
|
||||
configurations, captures and documented fixture defects are retained. This
|
||||
limits forensic replay of those failures, not the final source-only reproduction.
|
||||
The final source/evidence manifests live outside Git in fractional-results.
|
||||
|
||||
## Observed qualification
|
||||
|
||||
G1/G2/G3 requested modes and scales were applied. Both standard controls prove
|
||||
popup and shadow overflow; private Mosaic's neighboring popup/FX1/FX2 images
|
||||
remain unchanged, while visible blur and permitted popup pixels persist.
|
||||
Two G1/G2 camera pairs restore exact popup PNGs. Result is PARTIALLY_FEASIBLE:
|
||||
opaque tiled overflow controls, interior Mosaic shadow, optimized caches,
|
||||
restored Mosaic hit before layout return and intermediate frames are unqualified.
|
||||
No production correction is implemented. STEP20C stays NEXT, multi-output
|
||||
NOT YET SUPPORTED. The original fractional campaign was local during the effects freeze; its
|
||||
source-only evidence is now preserved separately.
|
||||
|
||||
## Freeze replay: no new camera pair
|
||||
|
||||
For the fractional freeze, run G1 calibration and G1/G2 three-mode
|
||||
`--scenario outside --placement b_cross --camera-pairs 0`. Do not run the
|
||||
camera commands in the historical campaign example above during this freeze.
|
||||
The historical two-pair ledger is exhausted and remains authoritative for
|
||||
its camera evidence; a fresh rebuild supplies no additional camera evidence.
|
||||
143
tooling/probes/step20c-fractional-scale/analyze.py
Normal file
143
tooling/probes/step20c-fractional-scale/analyze.py
Normal file
|
|
@ -0,0 +1,143 @@
|
|||
"""Physical PNG analysis with predeclared logical ROIs; no border exclusions."""
|
||||
import argparse
|
||||
import hashlib
|
||||
import json
|
||||
import math
|
||||
from pathlib import Path
|
||||
import re
|
||||
from PIL import Image, ImageChops, ImageDraw, ImageStat
|
||||
|
||||
ROIS = {'left': {'interior': (300,100,700,500), 'boundary': (720,50,800,550)},
|
||||
'right': {'boundary': (0,50,80,550), 'reference': (250,250,550,500)}}
|
||||
COLORS = {'A': (224,192,32), 'B': (32,208,160)}
|
||||
|
||||
def sha(p):
|
||||
return hashlib.sha256(p.read_bytes()).hexdigest()
|
||||
|
||||
def nonzero(d):
|
||||
r,g,b=d.split()
|
||||
return ImageChops.lighter(ImageChops.lighter(r,g),b)
|
||||
|
||||
def diff(a,b):
|
||||
d=ImageChops.difference(a,b)
|
||||
return {'compared_pixels': a.width*a.height,
|
||||
'modified_pixels': a.width*a.height-nonzero(d).histogram()[0],
|
||||
'bbox': d.getbbox()}
|
||||
|
||||
def physical(box,scale):
|
||||
# CONTRACT: conservative ROI containment; not a substituted render-box rule.
|
||||
return [math.floor(box[0]*scale), math.floor(box[1]*scale),
|
||||
math.ceil(box[2]*scale), math.ceil(box[3]*scale)]
|
||||
|
||||
def analyze(run):
|
||||
events=[json.loads(x) for x in (run/'events.jsonl').read_text().splitlines()]
|
||||
geoms={(e['tag'],e['output']):e for e in events if e['kind']=='capture_geometry'}
|
||||
log=(run/'compositor.log').read_text(errors='replace')
|
||||
# WHY: source audit establishes these extents are already buffer-local.
|
||||
# INVARIANT: no second scale conversion of TEMPORAL_DAMAGE.
|
||||
damages=[(int(ns),out,list(map(int,box))) for ns,out,*box in
|
||||
re.findall(r'TEMPORAL_DAMAGE ordinal=\d+ ns=(\d+) output=(\S+) extent=(-?\d+),(-?\d+)\.\.(-?\d+),(-?\d+)',log)]
|
||||
captures=[];previous={};images={};transitions=[]
|
||||
for e in events:
|
||||
if e['kind']!='capture':continue
|
||||
path=run/e['path'];g=geoms[(e['tag'],e['output'])]
|
||||
side='left' if e['output']=='HEADLESS-1' else 'right'
|
||||
im=Image.open(path).convert('RGB');images[(side,e['tag'])]=im
|
||||
assert list(im.size)==g['dimensions']==[g['mode']['width'],g['mode']['height']]
|
||||
obs={'file':path.name,'sha256':sha(path),'geometry':g,'before_ns':e['before_ns'],
|
||||
'after_ns':e['after_ns'],'coordinate_source':'get_outputs + explicit per-output grim scale',
|
||||
'roi':{},'client_pixels':{},'edge_columns':{},
|
||||
'hit_evidence':{'client_log_sha256':sha(run/'client.log') if (run/'client.log').exists() else None,
|
||||
'pointer_log_sha256':sha(run/'pointer.log') if (run/'pointer.log').exists() else None,
|
||||
'scope':'ordered run events; no atomic capture/input identity'}}
|
||||
for name,box in ROIS[side].items():
|
||||
pb=physical(box,g['scale']);roi=im.crop(pb)
|
||||
obs['roi'][name]={'logical':box,'physical':pb,'pixels':roi.width*roi.height}
|
||||
for name,col in COLORS.items():
|
||||
delta=ImageChops.difference(im,Image.new('RGB',im.size,col))
|
||||
mask=nonzero(delta).point(lambda v: 255 if v == 0 else 0)
|
||||
obs['client_pixels'][name]={'exact_pixels':mask.histogram()[255], 'bbox':mask.getbbox()}
|
||||
# Entire predeclared columns, not selected after inspecting anomalies.
|
||||
cols=list(range(0,min(4,im.width))) if side=='right' else list(range(im.width-4,im.width))
|
||||
for x in cols:
|
||||
obs['edge_columns'][str(x)]={name:sum(im.getpixel((x,y))==c for y in range(im.height)) for name,c in COLORS.items()}
|
||||
if side in previous:
|
||||
older,oldim=previous[side]
|
||||
intervals=[box for ns,out,box in damages if out==e['output'] and older['after_ns']<ns<=e['after_ns']]
|
||||
mask=Image.new('1',im.size,0);draw=ImageDraw.Draw(mask)
|
||||
for box in intervals:draw.rectangle((box[0],box[1],box[2]-1,box[3]-1),fill=1)
|
||||
delta=ImageChops.difference(oldim,im)
|
||||
changed=nonzero(delta).point(lambda v: 255 if v else 0)
|
||||
uncovered=ImageChops.subtract(changed,mask.convert('L'))
|
||||
outside=uncovered.histogram()[255]
|
||||
transitions.append({'side':side,'from':older['tag'],'to':e['tag'],**diff(oldim,im),
|
||||
'damage_coordinate_source':'TEMPORAL_DAMAGE physical buffer-local',
|
||||
'damage_extents':intervals,'changed_outside_damage':outside if damages else None})
|
||||
previous[side]=(e,im);captures.append(obs)
|
||||
comparisons=[]
|
||||
for side in ROIS:
|
||||
base=images.get((side,'FX0-off'))
|
||||
if base:
|
||||
scale=next(g['scale'] for (tag,out),g in geoms.items() if out==('HEADLESS-1' if side=='left' else 'HEADLESS-2'))
|
||||
for tag in ('FX1-shadow','FX2-blur','FX4-combined'):
|
||||
if (side,tag) not in images:continue
|
||||
im=images[(side,tag)]
|
||||
entry={'side':side,'phase':tag,'whole':diff(base,im),'rois':{}}
|
||||
for name,box in ROIS[side].items():
|
||||
pb=physical(box,scale);aa=base.crop(pb);bb=im.crop(pb)
|
||||
entry['rois'][name]=diff(aa,bb)
|
||||
# Luminance and contrast measured in the predeclared ROI.
|
||||
metrics=[]
|
||||
for img in (aa,bb):
|
||||
gray=img.convert('L')
|
||||
horizontal=ImageChops.difference(gray.crop((1,0,img.width,img.height)),gray.crop((0,0,img.width-1,img.height)))
|
||||
metrics.append({'luminance_stddev':ImageStat.Stat(gray).stddev[0],
|
||||
'mean_adjacent_contrast':ImageStat.Stat(horizontal).mean[0]})
|
||||
entry['rois'][name]['filter_metrics_fx0_effect']=metrics
|
||||
comparisons.append(entry)
|
||||
for side in ROIS:
|
||||
ref_tag='S1-effects-off-reference' if (side,'S1-effects-off-reference') in images else 'S1-opaque-reference'
|
||||
if (side,ref_tag) in images and (side,'S2-chain-stable') in images:
|
||||
first=images[(side,ref_tag)];second=images[(side,'S2-chain-stable')]
|
||||
scale=next(g['scale'] for (tag,out),g in geoms.items() if out==('HEADLESS-1' if side=='left' else 'HEADLESS-2'))
|
||||
comparisons.append({'side':side,'phase':'S2-popup-vs-reference','whole':diff(first,second),
|
||||
'rois':{name:diff(first.crop(physical(box,scale)),second.crop(physical(box,scale))) for name,box in ROIS[side].items()}})
|
||||
boxes=[]
|
||||
for chain in (e for e in events if e['kind']=='chain'):
|
||||
for name,point,offset,cfg in [('A',chain['a_global'],(40,35),chain['a_configure']),('B',chain['b_global'],(35,30),chain['b_configure'])]:
|
||||
gx,gy=point[0]-offset[0],point[1]-offset[1]
|
||||
for output,ox in [('HEADLESS-1',-800),('HEADLESS-2',0)]:
|
||||
g=next(v for (tag,out),v in geoms.items() if out==output);sc=g['scale']
|
||||
def rounded(v):return math.floor(v+0.5) if v>=0 else math.ceil(v-0.5)
|
||||
edges=[rounded((gx-ox)*sc),rounded(gy*sc),rounded((gx-ox+cfg[2])*sc),rounded((gy+cfg[3])*sc)]
|
||||
boxes.append({'popup':name,'output':output,'global_logical':[gx,gy,cfg[2],cfg[3]],
|
||||
'rounded_destination_edges':edges,'source':'configured geometry and successfully targeted local offsets; SceneFX scale_box edge rule',
|
||||
'viewport_physical':[0,0,g['mode']['width'],g['mode']['height']]})
|
||||
returns=[]
|
||||
for side in ROIS:
|
||||
if (side,'S5-return') in images:
|
||||
returns.append({'side':side,**diff(images[(side,'S2-chain-stable')],images[(side,'S5-return')])})
|
||||
client=(run/'client.log').read_text(errors='replace') if (run/'client.log').exists() else ''
|
||||
grabs=[]
|
||||
for name,target,serial,used in re.findall(r'(POPUP_[AB]) GRAB_REQUEST origin=wl_pointer.button target=(\S+) serial=(\d+) used=(\d+)',client):
|
||||
valid=serial==used and bool(re.search(rf'POINTER_BUTTON target={target} serial={serial} button=272 state=1',client))
|
||||
grabs.append({'popup':name,'parent':target,'received_serial':int(serial),'used_serial':int(used),'valid':valid,
|
||||
'mapped':f'{name} MAP' in client})
|
||||
return {'run':run.name,'exit_status':json.loads((run/'exit-status.json').read_text()),
|
||||
'captures':captures,'comparisons':comparisons,'transitions':transitions,'returns':returns,
|
||||
'grabs':grabs,'physical_popup_boxes':boxes,'client_events':re.findall(r'^(?:POINTER_|POPUP_)[^\n]*',client,re.M),
|
||||
'calibration':[e for e in events if e['kind']=='pointer_calibration'],
|
||||
'scenario_events':[e for e in events if e['kind'] in ('chain','exterior_click','camera_pair_complete','standard_return_hit','boundary_hover')],
|
||||
'clip_trace':[line for line in log.splitlines() if 'PROBE_POPUP_' in line or any(t in line for t in ('PI_SCENE ', 'PI_OWNER ', 'PI_POPUP '))],
|
||||
'damage_events':len(damages)}
|
||||
|
||||
p=argparse.ArgumentParser();p.add_argument('lab',type=Path);args=p.parse_args();lab=args.lab.resolve()
|
||||
out=lab/'fractional-results';out.mkdir(exist_ok=True)
|
||||
results=[analyze(r) for r in sorted((lab/'runs').iterdir()) if (r/'exit-status.json').exists()]
|
||||
(out/'analysis.json').write_text(json.dumps(results,indent=2)+'\n')
|
||||
proofs=[f for r in (lab/'runs').iterdir() for f in r.rglob('*') if f.is_file()]
|
||||
proofs += [f for f in lab.glob('fractional-*') if f.is_file() and f.suffix!='.lock']
|
||||
proofs += [f for f in out.iterdir() if f.is_file() and f.name != 'evidence-sha256.txt']
|
||||
proofs += [lab/'fx-checker.png',out/'analysis.json',lab/'effects-source-sha256.txt',lab/'effects-build-log.txt']
|
||||
(out/'evidence-sha256.txt').write_text(''.join(f'{sha(f)} {f}\n' for f in sorted(set(proofs))))
|
||||
print(json.dumps({'runs':len(results),'manifest_entries':len(set(proofs)),'manifest_sha256':sha(out/'evidence-sha256.txt')}))
|
||||
17
tooling/probes/step20c-fractional-scale/prepare.sh
Normal file
17
tooling/probes/step20c-fractional-scale/prepare.sh
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
#!/bin/sh
|
||||
# EXPERIMENTAL: rebuild pinned inputs in one private lab; no installation.
|
||||
set -eu
|
||||
repo=$(CDPATH= cd -- "$(dirname -- "$0")/../../.." && pwd)
|
||||
log=$(mktemp /tmp/fractional-prepare-XXXXXXXX)
|
||||
sh "$repo/tooling/probes/step20c-effects-damage/prepare.sh" > "$log" 2>&1
|
||||
lab=$(sed -n 's/^LAB=//p' "$log")
|
||||
test -n "$lab" && test -d "$lab"
|
||||
# CONTRACT: the baseline is pristine upstream, never a Mosaic-modified tree.
|
||||
mkdir "$lab/standard"
|
||||
git -C "$repo" archive fd71a6bdc061bd633b488ae7b83e8a6981d22f86 | tar -xf - -C "$lab/standard"
|
||||
meson setup "$lab/standard-build" "$lab/standard" -Dwerror=false \
|
||||
-Dsd-bus-provider=libsystemd -Dswaybar=false -Dswaynag=false \
|
||||
-Dman-pages=disabled -Ddefault-wallpaper=false >> "$log" 2>&1
|
||||
meson compile -C "$lab/standard-build" -j 8 >> "$log" 2>&1
|
||||
cp "$log" "$lab/fractional-build-log.txt"
|
||||
printf 'LAB=%s\nBUILD_LOG=%s\n' "$lab" "$log"
|
||||
176
tooling/probes/step20c-fractional-scale/run.py
Normal file
176
tooling/probes/step20c-fractional-scale/run.py
Normal file
|
|
@ -0,0 +1,176 @@
|
|||
"""EXPERIMENTAL scaling adapter; only private fixture code is generated."""
|
||||
import argparse
|
||||
import fcntl
|
||||
import json
|
||||
import os
|
||||
from pathlib import Path
|
||||
import subprocess
|
||||
import sys
|
||||
from PIL import Image
|
||||
|
||||
p = argparse.ArgumentParser()
|
||||
p.add_argument('lab', type=Path)
|
||||
p.add_argument('mode', choices=('control', 'private_standard', 'private_mosaic'))
|
||||
p.add_argument('geometry', choices=('G0', 'G1', 'G2', 'G3'))
|
||||
p.add_argument('--camera-pairs', type=int, choices=(0, 1), default=0)
|
||||
p.add_argument('--outside-y', type=int, choices=(140,190), default=190)
|
||||
p.add_argument('--placement', choices=('b_cross', 'both_cross'), default='b_cross')
|
||||
p.add_argument('--scenario', choices=('main', 'outside', 'calibration'), default='main')
|
||||
a = p.parse_args()
|
||||
lab = a.lab.resolve()
|
||||
repo = Path(__file__).resolve().parents[3]
|
||||
if a.camera_pairs and (a.mode != 'private_mosaic' or a.geometry not in ('G1', 'G2') or a.scenario != 'main'):
|
||||
p.error('pairs only in G1/G2 main Mosaic runs')
|
||||
# WHY: repeat attempts must not create a new scientific budget.
|
||||
# CONTRACT: single lab-wide ledger; failure/interruption consumes reservation.
|
||||
# INVARIANT: hold exclusive lock through launch and child cleanup, never reset.
|
||||
lock = (lab / 'fractional-campaign.lock').open('a')
|
||||
fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
|
||||
ledger = lab / 'fractional-camera-budget.json'
|
||||
if not ledger.exists() and any((lab / 'runs').glob('*-fractional-*')):
|
||||
p.error('existing campaign has no ledger; refusing silent budget reset')
|
||||
state = json.loads(ledger.read_text()) if ledger.exists() else {'consumed': 0, 'attempts': []}
|
||||
if type(state['consumed']) is not int or not 0 <= state['consumed'] <= 2:
|
||||
p.error('invalid persisted budget')
|
||||
if state['consumed'] != sum(t['reserved'] for t in state['attempts']):
|
||||
p.error('inconsistent persisted reservations')
|
||||
if state['consumed'] + a.camera_pairs > 2:
|
||||
p.error('global two-pair budget exhausted')
|
||||
state['consumed'] += a.camera_pairs
|
||||
state['attempts'].append({'geometry': a.geometry, 'mode': a.mode, 'scenario': a.scenario, 'placement': a.placement, 'outside_y': a.outside_y, 'reserved': a.camera_pairs})
|
||||
tmp = ledger.with_suffix('.tmp')
|
||||
with tmp.open('w') as f:
|
||||
f.write(json.dumps(state, indent=2) + '\n'); f.flush(); os.fsync(f.fileno())
|
||||
tmp.replace(ledger)
|
||||
# CONTRACT: record all attempts including zero-pair controls before launch.
|
||||
scales = {'G0': (1, 1), 'G1': (1.25, 1.25), 'G2': (1.25, 1), 'G3': (1.5, 1)}[a.geometry]
|
||||
modes = [(int(800*s), int(600*s)) for s in scales]
|
||||
pattern = Image.new('RGB', (64, 64))
|
||||
for y in range(64):
|
||||
for x in range(64):
|
||||
pattern.putpixel((x, y), (245,245,245) if (x//8)%2 == 0 else (15,25,45))
|
||||
pattern.save(lab / 'fx-checker.png')
|
||||
s = (repo / 'tooling/probes/step20c-applied-state-input/run.py').read_text()
|
||||
s = s.replace("'hidden_click', 'toggle'))", "'hidden_click', 'toggle', 'scale'))")
|
||||
s = s.replace("f'{args.mode}-{args.kind}-asi{args.asi_mode}-{time.time_ns()}'", "f'{args.mode}-fractional-"+a.geometry+'-'+a.scenario+"-{time.time_ns()}'")
|
||||
for i in (0,1):
|
||||
old = f'output HEADLESS-{i+1} resolution 800x600 position {(-800 if i==0 else 0)} 0'
|
||||
new = f'output HEADLESS-{i+1} resolution {modes[i][0]}x{modes[i][1]} scale {scales[i]} position {(-800 if i==0 else 0)} 0'
|
||||
assert old in s;s=s.replace(old,new)
|
||||
s = s.replace("output.get('scale') != 1.0", "output.get('scale') != EXPECTED_SCALES[output['name']]")
|
||||
s = s.replace("['grim', '-o', output, str(path)]", "['grim', '-s', str(EXPECTED_SCALES[output]), '-o', output, str(path)]")
|
||||
# WHY: grim's default multi-output scale can differ from the target output.
|
||||
# CONTRACT: request that output's scale, then assert PNG dimensions against mode.
|
||||
s = s.replace("record('capture', tag=tag", """with Image.open(path) as png:
|
||||
dimensions = list(png.size)
|
||||
out = next(o for o in outputs if o['name'] == output)
|
||||
mode = out['current_mode']
|
||||
if dimensions != [mode['width'], mode['height']]:
|
||||
raise RuntimeError(f'capture/mode mismatch {dimensions} {mode}')
|
||||
record('capture_geometry', tag=tag, output=output, dimensions=dimensions,
|
||||
scale=out['scale'], transform=out['transform'], rect=out['rect'], mode=mode)
|
||||
record('capture', tag=tag""")
|
||||
s = s.replace("'nested-client'), 'b_cross'", "'nested-client'), " + repr(a.placement))
|
||||
s = s.replace("Path('/usr/bin/sway')", "lab / 'standard-build/sway/sway'")
|
||||
s = s.replace("from pathlib import Path", "from pathlib import Path\nfrom PIL import Image\nEXPECTED_SCALES = " + repr(dict(zip(('HEADLESS-1','HEADLESS-2'),scales))))
|
||||
scenario = r''' if args.kind == 'scale':
|
||||
def wev_calibrate(proc, logname, node):
|
||||
# CONTRACT: logical enter infers origin; independent motion checks the delta.
|
||||
text = lambda: (run / logname).read_text()
|
||||
r, w = node['rect'], node['window_rect']
|
||||
origin = [r['x'], 300 if logname == 'wev-left.log' else 250]
|
||||
x, y = origin[0] + 20, origin[1] + 30
|
||||
inject('move', 790, 10)
|
||||
time.sleep(.05)
|
||||
before = len(text())
|
||||
inject('move', x, y)
|
||||
wait(lambda: re.search(r'enter:[^\n]*x, y: ([\d.]+), ([\d.]+)', text()[before:]))
|
||||
enter = re.findall(r'enter:[^\n]*x, y: ([\d.]+), ([\d.]+)', text()[before:])[-1]
|
||||
ex, ey = map(float, enter)
|
||||
if ex != 20 or not 0 <= ey < 100:
|
||||
raise RuntimeError(f'calibration enter out of expected interior: {enter}')
|
||||
applied_origin = [x-ex, y-ey]
|
||||
before = len(text())
|
||||
inject('move', x+40, y+20)
|
||||
wait(lambda: f'x, y: {ex+40:.6f}, {ey+20:.6f}' in text()[before:])
|
||||
for button in ('left', 'right'):
|
||||
inject(button, x+40, y+20)
|
||||
wait(lambda: 'button: 272' in text() and 'button: 273' in text())
|
||||
record('pointer_calibration', global_point=[x+40,y+20], local_expected=[ex+40,ey+20],
|
||||
rect=r, content=w, requested_origin=origin, surface_origin=applied_origin, coordinate_source='client enter origin and independent motion delta', log=logname, passed=True)
|
||||
command('[app_id="wev"] floating enable')
|
||||
command('[app_id="wev"] border none')
|
||||
command('[app_id="wev"] move position 250 250')
|
||||
time.sleep(.3)
|
||||
ref = find(tree(), lambda n: n.get('app_id') == 'wev')
|
||||
wev_calibrate(None, 'wev.log', ref)
|
||||
command('workspace 1')
|
||||
cal = spawn(['stdbuf','-oL','wev'], 'wev-left.log')
|
||||
wait(lambda: find(tree(), lambda n: n.get('app_id') == 'wev' and n['id'] != ref['id']))
|
||||
left = find(tree(), lambda n: n.get('app_id') == 'wev' and n['id'] != ref['id'])
|
||||
command(f"[con_id={left['id']}] floating enable")
|
||||
command(f"[con_id={left['id']}] border none")
|
||||
command(f"[con_id={left['id']}] move absolute position -750 300")
|
||||
time.sleep(.3)
|
||||
left = find(tree(), lambda n: n.get('id') == left['id'])
|
||||
wev_calibrate(cal, 'wev-left.log', left)
|
||||
# Cross the output boundary and return with both targets still alive.
|
||||
inject('move', 310,300); inject('move', -690,350)
|
||||
snapshot('S0-calibrated')
|
||||
command(f"[con_id={left['id']}] kill")
|
||||
cal.wait(timeout=8)
|
||||
command('workspace 1')
|
||||
command('[app_id="org.mosaic.NestedGrabProbe"] focus')
|
||||
if args.mode == 'private_mosaic': scroll(400)
|
||||
if SCENARIO != 'calibration':
|
||||
spawn(['swaybg','-i',str(lab/'fx-checker.png'),'-m','tile'], 'swaybg.log')
|
||||
command('gaps inner 24')
|
||||
if args.mode != 'private_mosaic':
|
||||
command('move right');command('move right')
|
||||
command('shadows disable');command('blur disable')
|
||||
command('shadow_blur_radius 16');command('shadow_offset 30 0')
|
||||
command('shadow_color #000000A0');command('blur_radius 5');command('blur_passes 3')
|
||||
time.sleep(.3);snapshot('FX0-off')
|
||||
command('shadows enable');time.sleep(.25);snapshot('FX1-shadow')
|
||||
command('shadows disable');command('blur enable')
|
||||
time.sleep(.25);snapshot('FX2-blur')
|
||||
command('shadows enable');time.sleep(.25);snapshot('FX4-combined')
|
||||
command('shadows disable');command('blur disable')
|
||||
time.sleep(.25);snapshot('S1-effects-off-reference')
|
||||
open_chain('scale')
|
||||
time.sleep(.25);snapshot('S2-chain-stable')
|
||||
# Predeclared logical edge grid: hover does not dismiss valid grabs.
|
||||
for x in (-2,-1,0,1,2,20):
|
||||
before = len(client_text())
|
||||
inject('move',x,190);time.sleep(.08)
|
||||
record('boundary_hover',global_point=[x,190],client_events=client_text()[before:])
|
||||
snapshot('S3-boundary')
|
||||
if SCENARIO == 'outside':
|
||||
before = len(re.findall(r'POINTER_BUTTON target=POPUP_[AB][^\n]*state=1',client_text()))
|
||||
inject('right',20,OUTSIDE_Y);time.sleep(.25)
|
||||
after = len(re.findall(r'POINTER_BUTTON target=POPUP_[AB][^\n]*state=1',client_text()))
|
||||
record('exterior_click',popup_buttons_before=before,popup_buttons_after=after,
|
||||
done_a=count('POPUP_A POPUP_DONE'),done_b=count('POPUP_B POPUP_DONE'))
|
||||
snapshot('S2-exterior-click')
|
||||
else:
|
||||
for pair in range(CAMERA_PAIRS):
|
||||
scroll(1280);time.sleep(.25);snapshot('S5-hidden')
|
||||
inject('move',-700,190);time.sleep(.1)
|
||||
scroll(400);time.sleep(.25);snapshot('S5-return')
|
||||
record('camera_pair_complete',pair=pair+1)
|
||||
command('layout splith');time.sleep(.3);snapshot('S7-standard')
|
||||
o=owner();ac,bc=configured('POPUP_A'),configured('POPUP_B')
|
||||
bx=o['rect']['x']+o['window_rect']['x']+ac[0]+bc[0]+35
|
||||
by=o['rect']['y']+o['window_rect']['y']+ac[1]+bc[1]+30
|
||||
inject('move',bx,by);inject('right',bx,by);time.sleep(.1)
|
||||
record('standard_return_hit',global_point=[bx,by])
|
||||
snapshot('S7-standard-hit')
|
||||
elif args.kind == 'cycles':
|
||||
'''
|
||||
scenario=scenario.replace('OUTSIDE_Y',str(a.outside_y))
|
||||
scenario=scenario.replace('SCENARIO',repr(a.scenario)).replace('CAMERA_PAIRS',str(a.camera_pairs))
|
||||
assert s.count(" if args.kind == 'cycles':\n") == 1
|
||||
s=s.replace(" if args.kind == 'cycles':\n",scenario)
|
||||
s = s.replace("run.mkdir(parents=True, mode=0o700)", "run.mkdir(parents=True, mode=0o700)\n(run / 'fixture-source.py').write_text(Path(__file__).read_text())")
|
||||
generated=lab/f'fractional-{a.geometry}-{a.mode}-{a.scenario}-attempt{len(state["attempts"])}.py';generated.write_text(s)
|
||||
raise SystemExit(subprocess.call([sys.executable,str(generated),str(lab),a.mode,'scale','--max-seconds','120','--max-captures','50','--max-bytes','35000000']))
|
||||
27
tooling/probes/step20c-fractional-scale/test-budget.py
Normal file
27
tooling/probes/step20c-fractional-scale/test-budget.py
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
"""Execute the real reservation block without starting a compositor or camera."""
|
||||
from pathlib import Path
|
||||
import json
|
||||
import signal
|
||||
import subprocess
|
||||
import tempfile
|
||||
|
||||
runner=Path(__file__).with_name('run.py').resolve()
|
||||
source=runner.read_text().split("scales = ")[0]
|
||||
# CONTRACT: only the launch tail is replaced; production reservation executes.
|
||||
root=Path(tempfile.mkdtemp(prefix='fractional-budget-test-'))
|
||||
script=root/'reservation.py'
|
||||
script.write_text('__file__='+repr(str(runner))+'\n'+source+"\nprint('RESERVED',flush=True)\nsys.stdin.readline()\nraise SystemExit(7)\n")
|
||||
def launch(lab,pairs):
|
||||
return subprocess.Popen(['python',str(script),str(lab),'private_mosaic','G1','--camera-pairs',str(pairs)],stdin=subprocess.PIPE,stdout=subprocess.PIPE,stderr=subprocess.PIPE,text=True)
|
||||
lab=root/'lab';lab.mkdir()
|
||||
p=launch(lab,1);assert p.stdout.readline().strip()=='RESERVED'
|
||||
q=launch(lab,1);out,err=q.communicate();assert q.returncode!=0 and 'BlockingIOError' in err
|
||||
p.send_signal(signal.SIGINT);p.communicate(timeout=5)
|
||||
assert json.loads((lab/'fractional-camera-budget.json').read_text())['consumed']==1
|
||||
p=launch(lab,1);assert p.stdout.readline().strip()=='RESERVED';p.communicate();assert p.returncode==7
|
||||
p=launch(lab,1);out,err=p.communicate();assert p.returncode==2 and 'exhausted' in err
|
||||
p=launch(lab,0);assert p.stdout.readline().strip()=='RESERVED';p.communicate()
|
||||
assert json.loads((lab/'fractional-camera-budget.json').read_text())['consumed']==2
|
||||
old=root/'old';(old/'runs/control-fractional-G1-old').mkdir(parents=True)
|
||||
p=launch(old,0);out,err=p.communicate();assert p.returncode==2 and 'silent budget reset' in err
|
||||
print('PASS reserve/lock/interruption/failure/exhaustion/zero/missing-ledger; no compositor launched:',root)
|
||||
Loading…
Reference in a new issue