Commit Graph
270 Commits
Author SHA1 Message Date
dtourolleandClaude Opus 5 0a6509de93 Forget the face runs made on proxies too small to see a face
The floor added in the previous commit stops this happening again; it
does nothing about the 1,824 images in the reference library that
already carry a face_index row written against a proxy of 1024 or less.
Those rows are why the damage is permanent rather than merely past. The
work list is "images with no row for this model", so an image examined
against a 1024px proxy -- 0.078 faces per image, nine in ten finding
nothing -- is indistinguishable from one examined properly, and no
later pass will ever offer it to the detector again.

V12 deletes exactly those markers, and nothing else. The faces those
runs did find stay in place and keep drawing the People screen until a
better pass replaces them, and record_detections re-attaches the user's
confirmed names across that replacement by box overlap, so a library
somebody has spent an evening naming does not lose that evening. The
cost is a re-fetch of the affected images.

Deleting the marker rather than teaching the work-list query to select
on source_edge, which was the other option and is worse. A standing
`source_edge < floor` predicate never lets go: an image whose largest
embedded preview is genuinely smaller than the floor would be re-fetched
on every sweep for ever, because the next pass cannot do any better than
the last one did. A one-off deletion gives each affected image exactly
one more attempt through the good path and then lets the ordinary
"has a row" rule settle it.

The threshold is written out in the SQL instead of referring to
dr_face::MIN_DETECT_EDGE. A migration has to keep meaning what it meant
when it ran; binding it to a constant someone may raise later would
quietly change what an old catalog gets migrated to.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 19:40:26 +02:00
dtourolleandClaude Opus 5 f87bf6ebc0 Charge a colour mode for its rarity, and keep the verdict
The refinement worked and could not be controlled. Pruning modes below a
share threshold made the flag's removal a *discrete* event: below the line
its Mahalanobis distance was enormous and nothing rescued it, above the line
it sat at zero and nothing removed it. A control over that would appear dead
through most of its travel and then start eating sky.

So the prune is gone. A mode is charged `−ln(share × k)` nats, floored at
zero, and that cost enters both tests — doubled in the chi-square, which is a
squared distance, and directly in the log density. Rarity becomes a distance
rather than a threshold, and the things a photographer wants to remove
separate along it.

Measured on the synthetic frame the tests build: a flag holding 1.6% of the
sky is more than half gone by **2.95 nats** and a cloud bank holding a third
of it survives to **5.75**. The whole interval between them is somewhere a
control can sit. `the_flag_goes_before_the_cloud_does` pins the ordering,
which is the property that makes one slider worth offering at all.

Measured against an even split rather than against one, so raising
`clusters` describes a category more finely without making every colour in it
look rarer. Floored at zero so a dominant mode earns no *discount* — a
bonus there would let the commonest colour outvote a bad chi-square, which is
the one direction this must not bend.

`Refinement` holds the per-pixel verdict, quantised to a byte over ±16 nats —
an eighth of a nat per step, far finer than the narrowest transition the gate
can be asked for, and the same size as the coverage buffer it sits beside.
`apply` is then a smoothstep, and the model is never consulted again.

That is `distance.rs`'s arrangement deliberately: there a signed distance
field is computed once and feather, grow and shrink become arithmetic on it,
"which is what makes those live controls rather than ones that stall on every
drag". Same shape, different field.

The blur moved with it, from the gate to the verdict. Smoothing the evidence
rather than the decision means it is paid for once in `compute` instead of on
every frame of a drag, and it is the better thing to smooth in any case.

`apply` at `STRICTNESS_OFF` returns the weights untouched without reading the
verdict at all. A control whose off position is *very nearly* the unrefined
mask cannot answer "is this helping"; one whose off position is the unrefined
mask can. `strictness_zero_changes_nothing` holds it to that, and
`strictness_is_monotonic` holds the rest of the travel to only ever removing
more — a slider that gave weight back partway up would be one whose direction
nobody could predict.

The synthetic sky is smooth enough to sit on `VARIANCE_FLOOR`, where a real
one has noise and therefore a real spread, which moves every crossing down
together. The ordering survives that; the placement is a calibration. Which
is the honest argument for a control rather than a constant, and why the
default sits at half scale instead of at the flag's measured crossing.

The example sweeps the whole range and writes a frame per nat, because the
question a photographer asks of a slider is where to put it, and that needs
the travel rather than a point on it.

Verified: fmt clean, clippy -D warnings clean, 60 dr-segment tests.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 18:30:40 +02:00
dtourolleandClaude Opus 5 4f4abd335f Cut a scene category back to the pixels that agree with it
A flag in the sky came out weighted as sky, and no feather setting fixed it.

The scene model's logits are `[1, 150, 80, 80]`, so one cell is eight input
pixels; at the 1600px proxy the letterbox scale is 0.4 and **one cell is 20
proxy pixels**, which `rasterise`'s bilinear then spreads across one more
either side. A flag is a handful of cells whose softmax is dominated by the
sky around it. The information was never in the grid, so nothing downstream
of the grid can recover it.

Tiling is the answer for an instance and is not available here: a category
has no bounding box to tile over — sky is wherever the sky is. But the
photograph is at full proxy resolution even though the weights are not, and
it knows exactly where the flag is. So the model says *what*, and the
pixels say *which of them*, which is the division of labour arm C already
draws between the instance model and the watershed.

## Seeds, and why the erosion radius is not a guess

Threshold the weights high, take `signed_distance`, and keep what is more
than 1.5 cells inside. One cell *is* the model's resolution and the bilinear
spreads it across one more, so the band either side of the boundary is smear
rather than evidence. Deriving the radius from `Scene::cell_pixels` rather
than picking a pixel count means it stays right if the proxy edge or the
export changes.

The mirror of that set is a confident *exterior*, free from the same field.

## Dropping small modes is the step that makes it work

Four k-means modes per side, not one Gaussian: sky is blue at the zenith,
white where the cloud is and pale at the horizon, and one blob over all
three rejects two of them.

Then modes holding under 3% of a side are discarded, and without that step
the whole thing fails on the case it was built for. A small flag deep in the
sky has both a high weight and a large distance from the boundary, so it
lands in the interior sample and teaches the model its own colour. It cannot
be excluded geometrically. It can be excluded by share.

Luminance is weighted at a quarter against chrominance for the same reason
the watershed's gradient is. Sky's variance is dominated by luminance, so at
equal weight the distribution is a long bright streak that a mid-grey flag
sits comfortably inside. A flag is separated by chrominance; a cloud is
separated by luminance alone. Not zero, or a dark bird against a bright sky
survives.

## Two tests, because either alone is wrong

Absolute — is this colour plausible under the category, as a chi-square on
the Mahalanobis distance. Comparative — is it likelier inside than outside.
A pixel must pass both.

The absolute test is what catches the flag, whose colour is far from *both*
sides and which the comparative test alone would leave at even odds. The
comparative test is what stops the absolute one needing a constant tuned per
category.

## What this cannot do, written down rather than left to be discovered

An intruder large enough to hold its own mode is kept. By share, a flag over
a fifth of the sky and a cloud bank over a fifth of the sky are the same
object, and colour does not separate them either — a white cloud is as far
from blue sky in chrominance as many intruders are.

So `min_cluster` is not a threshold with a correct value waiting to be
found; it is the trade-off itself, set where a photographic intruder falls.
Both ends are pinned by tests — `a_flag_in_the_sky_is_removed` and
`an_intruder_larger_than_min_cluster_survives` — so that moving the number
reads as moving the trade-off rather than as fixing a bug. The case left
open is a large unrecognised object in a clean category, which wants the
boundary snapped to watershed basins and is a different mechanism.

## Safe to apply without a control

It is subtractive: the output is the input times a factor in `0..=1`. The
worst failure available to it is losing part of a real sky, never gaining a
region, so a blue car below the horizon that was never in the mask cannot be
pulled into it. And a factor in `0..=1` cannot raise a sum, so `scene.rs`'s
partition still holds when every category is refined independently — the
weight taken off the flag lands in the unlisted remainder, which is where a
flag belongs, ADE20K having no class for one.

Every path without the evidence to judge returns the weights untouched and
says which path it took. A refinement that silently did nothing is
indistinguishable from the feature being off, and an empty seed set fitted
to a distribution would reject every pixel.

The signature is deliberately unchanged: categories are addressed by name,
not by index, so a sharper mask cannot create the stale-index hazard the
signature exists to guard against.

The example writes `<prefix>-<category>-refined.ppm` beside the coarse one,
never instead of it — whether this is an improvement is a comparative
judgement and one image cannot answer it.

Verified: fmt clean, clippy -D warnings clean, 57 dr-segment tests.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 18:30:16 +02:00
dtourolleandClaude Opus 5 8131706394 Regenerate the matrix over the merged rail work
The merge moved tagged lines in identity.rs, identity_ui.rs and the two
Slint files; the matrix tracks line numbers, so it goes stale on a move
alone. A merge commit does not run the pre-commit hook that would
normally have staged this.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 18:30:16 +02:00
dtourolleandClaude Opus 5 0845d4ee20 Regenerate the matrix over the merged branches
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 16:51:49 +02:00
dtourolle 80f0a0eeac Merge branch 'master' into feat/library-toolbar
# Conflicts:
#	docs/gestures.md
#	docs/traceability.md
2026-08-30 14:18:21 +02:00
dtourolleandClaude Opus 5 677146883f Decide what the header gives up when it cannot hold everything
Three faults, all invisible in the source and all found by looking at
the window.

`alignment: start` on the selection bar. Slint only hands space to
`horizontal-stretch` children under the default `stretch` alignment;
under `start` every child takes its preferred width and the stretch is
ignored without complaint. That was harmless while the bar held four
controls. Now that it holds every selection verb it is the difference
between a count that gives way and a row that can only scroll, so the
alignment goes and the stretch does its job.

The title collapsed to "…". An eliding Text has a minimum of nothing,
so once the buttons had taken their own minimums the title was the
cheapest thing in the row to give away — the window stopped saying
which library was open while the byte counts beside it stayed. It gets
a 90px floor.

And the status line does not get one. After the sidebar takes its 232,
a 1100pt window leaves this header about 868, and the buttons want
most of that before a character is drawn — so something must degrade,
and the order is the whole question. A floor here bought a readable
status by pushing Settings off the right edge, reachable only by
knowing to flick-scroll, which is precisely the fault the row's own
Flickable comment warns about. A control you cannot see is worse than
a sentence you cannot finish. The status line is also the most
redundant thing in the header — the sidebar states the library's count
and the filter chips state it again — so it is what gives, and it
grows back the moment there is room.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 14:05:24 +02:00
dtourolleandClaude Opus 5 9994bb4ce7 Regenerate the matrix over the third wave
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 14:02:40 +02:00
dtourolleandClaude Opus 5 c7e1822f77 Put the two collection actions in the collections panel
"Keep offline" and "Change library" were buttons in the library
header, in a row that is otherwise entirely library-wide. Both refer
to the tree instead.

"Keep offline" could only ever mean the scoped collection, while
sitting nowhere near the tree that says which that is — and while the
sidebar already offered the same question twice, on each row's tray
and on a held row. It now sits under the tree, in the panel whose
selection decides what it acts on, in the same place and shape the
trash already gives Restore and Empty. It stays a labelled control
rather than being dropped for the tray: a 26px row's tray is a small
thing to hit, and "Kept offline" spelt out for the collection you are
looking at is the discoverable version.

"Change library" was wedged between Sync and Rescan, two buttons that
act on the library you already have. Reading it as one of that group
is a way to lose a scan by aiming badly. It is now the last thing in
the panel, under the tree it replaces wholesale, behind a rule.

On a tablet both are one tap further away, behind the sidebar toggle
that leads the header. That is the panel a user is already in when
they scope the grid to a collection, so it is where they are when
either of these becomes the thing they want.

The grid keeps `pin-done`/`pin-total` and its progress bar: the
transfer is worth reporting wherever it was started from, including a
row the grid is not scoped to.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 13:19:53 +02:00
dtourolleandClaude Opus 5 f4fbabf18b Say what the grid is showing in one line, not four
The header carried four readouts beside the title: the image count,
the selection count, the scan's status and where in the library the
visible window sits. Each had `horizontal-stretch: 1`, which is what
actually lets a Text shrink in Slint — so between them they claimed
about a third of a 768px header and left the buttons to scroll off the
end of it.

The selection count goes to the bar at the foot of the grid, beside
the buttons that act on it. The other three are one subject and are
now one sentence with separators, sharing one stretch.

Two of them were also saying the same words while a sweep ran:
"indexing 300 / 12 480" appeared both as the status and, redundantly,
in place of the window position.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 13:16:20 +02:00
dtourolleandClaude Opus 5 18063152f9 Ask where these photographs go once, not twice
The selection bar had "Add to collection" and "New collection" side by
side. Both answer the same question — where do these go? — and the bar
asked it before showing the list that decides it: a user who wants a
collection they already have and a user who wants a new one press
different buttons before either has seen what exists.

"New collection…" moves into the filing sheet, under the list of
collections. That is where you look after failing to find the one you
wanted, and it is the only place the choice can be made informed.

It also fixes the sheet's empty state, which said "Make one with + in
the sidebar" — advice that cannot be followed on a tablet, where the
sidebar is instantiated but not drawn. The first collection can now be
made from the sheet that noticed there were none.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 13:14:47 +02:00
dtourolleandClaude Opus 5 8510a2f6a7 Give the selection one bar instead of two ends of the window
"What can I do with these twelve photographs?" was answered in two
places. Six buttons in the header — Add to collection, Keywords,
Presets, Paste to N, Export N, Remove from collection — and four more
on the floating bar at the foot of the grid, beside the count that
says what they would act on.

The header half was the worse of the two. Those six appeared and
disappeared from the middle of the row as photographs were picked, so
Sync, Settings and everything beside them slid several hundred pixels
sideways at the exact moment a hand was already travelling toward one.
On a tablet the header scrolls sideways, so they were often not on
screen at all.

All six move to the bar. It now reads left to right as shaping the
selection — Clear, Select all, Select to… — then acting on it, with a
gap between the two thoughts. The header keeps only what belongs to
the library, and changes only when the library does.

Two consequences worth stating. The bar holds ten controls in the
worst case, so it scrolls sideways like every other row in this view,
for the reason set out on the header's Flickable: a layout given less
width than its children need overruns rather than shrinking, and the
buttons past the edge are simply gone. And the bar now stays up for a
running export whatever the selection has since become, because Cancel
export lived on a button that used to have its own `|| exporting`
escape hatch — the grid's viewport inset follows the same condition so
the last row of thumbnails is never trapped underneath.

`settings-summary` went with them: threaded from the window into the
grid and into HeaderActions, and never once drawn.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 13:13:11 +02:00
dtourolle 458025c607 Merge the scene model: a second, ADE20K-trained graph for per-category grades
Five commits. `models/` becomes one tree at the repository root so the
weight the application carries is a single `du -sh`; the export script
stops building its multi-gigabyte venv in RAM; `yolo26s-sem-ade20k`
joins the instance model rather than replacing it; the decoder turns its
logits into a partition of unity over eight photographic categories; and
four packaging routes put the file somewhere each platform can find it.

The instance model stays exactly where it was. A semantic model merges
every pixel of a class into one region, so it cannot separate two people,
and separating two people is what clicking a subject needs. The scene tab
grades whole categories and does not care. docs/segmentation.md §16.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

# Conflicts:
#	docs/traceability.md
2026-08-30 10:50:49 +02:00
dtourolleandClaude Opus 5 8df6000e4b Decode the scene model into per-category weights
The weights landed last commit with nothing to read them. This is the
decoder, and the shape of it follows from one property worth stating
before the code: the categories must partition the image.

## Why a partition, and not a mask per category

The scene tab applies one grade to every pixel of a category — lift the
sky, desaturate foliage — and both grades meet at the horizon. If each
category carried an independent mask, feathering them outward would make
the boundary band belong to both, so both grades would land there and
every horizon would acquire a visible seam. Feathering has to *blend*
there, not accumulate.

So `marginalise` takes one softmax over all 150 channels and sums within
each category. Grouping cannot change a total of one, so the listed
categories plus the unlisted remainder sum to one at every pixel, by
construction rather than by normalising afterwards. `parse_categories`
refuses a descriptor that claims a class twice, because that is the one
input that would quietly make the property untrue.

## The descriptor is data, and hand-written

`models/scene/categories.txt` groups ADE20K's 150 classes into the eight
a photographer would recognise. It is a file rather than a table in Rust
for the reason `models/LICENCE.md` predicted — a vocabulary is model
metadata — and it is line-oriented with comments rather than JSON like
the `.classes.json` beside it, because that file is generated and this
one is argued. Why `swimming pool` is water and not architecture belongs
next to the line that says so.

Classes are named, not indexed. An index is silently wrong after a
re-export; a name is loudly wrong, and the loader refuses one the model
does not have.

## Resolution, kept visible

`Scene` holds the native 80×80 logit grid and resamples on demand rather
than upsampling once at load. The coarseness is real — it is what the
graph produces — and a type that hides it behind an early resize invites
callers to expect detail that was never there. `rasterise` is where the
letterbox inverse lives, once.

`Letterbox` and `Window` become `pub(crate)` and `to_proto` generalises
to `to_grid`, because both dense outputs this crate reads are an even
fraction of the same letterboxed square and differ only in the divisor.

## Verified by looking, which is the only way this gets verified

`examples/scene.rs` writes the photograph dimmed outside each category. A
transposed axis or an off-by-one in the inverse produces perfectly
plausible weights over slightly the wrong pixels, and no unit test
catches that. On an indoor frame the person mask lands on the person,
including the outstretched arm, and sky reads ~5% against a bright
ceiling.

It doubles as the benchmark, because every timing quoted while this model
was chosen came off a laptop compiling other things and none of them
belong in a document.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 10:48:37 +02:00
dtourolleandClaude Opus 5 258aae71d6 Regenerate the matrix without the tool's own fixtures
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 10:33:08 +02:00
dtourolleandClaude Opus 5 ef07e6ca3e Give the canvas tools a rail of their own, and the column one width
Build and test / Desktop (Linux) (push) Failing after 1h14m38s
Build and test / Layer separation (push) Successful in 48s
🐳 Android image / Build and push (push) Successful in 16m30s
Build and test / android-image (push) Successful in 16m31s
Traceability / Requirement traces (push) Successful in 1m47s
Build and test / Android (aarch64) (push) Successful in 1h0m21s
Crop, Local and Repair were chips at the head of the develop column, sharing a
row with the adjustment groups and told apart from them by the shape of their
highlight. Three things followed from that, and only the last is cosmetic: the
column closes, so the way out of a mode went away with the way in — hence the
duplicate "Done Cropping" over the canvas; the chips are generated from the
operation set, so the widest thing in the sidebar was a row nobody had chosen
the contents of; and a mode and a filter are different kinds of state wearing
one control.

They are a fixed 60px rail down the left now, generated from a single table in
toolrail.slint. A tool is one row of it plus a drawing plus a ViewMode variant;
nothing in app.slint is touched to add one. What is left of the strip is the
group filters, so it is GroupStrip.

The column stops measuring itself. Every panel published a content-width and
declared it as min-width, and the column took the largest — which spent the
photograph's pixels on whatever happened to be widest, and moved the image
sideways when switching tools swapped one set of panels for another. It is
panel-width now, one number in style.yaml.

That number is 360 and it is measured, not picked: the contents report a
minimum of 344 in every mode, and they do not compress below it because a Text
that does not elide reports the same minimum as preferred. 320 was tried and
sliced Paste down the middle. The Flickable's viewport is floored at the
layout's minimum rather than its preferred width for the same reason — content
that is never told how much room it has cannot adapt to having less.

Removing the eight content-width declarations repairs three comments an
earlier edit had spliced sentences into. The raw histogram's note on keeping
its hint short is rewritten rather than dropped: an over-long hint no longer
widens the column, it pushes the column's minimum past the width it has and
clips the panel, which makes that constraint sharper rather than obsolete.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 09:59:50 +02:00
dtourolleandClaude Opus 5 b120ce48ec Float the selection bar over the grid instead of above it
Selecting the first photograph inserted a 40px row into the view's
vertical flow, so every cell in the grid moved down by it. The act of
selecting shifted the thing being selected out from under the finger —
and a second tap aimed at the neighbour landed on the row below it,
which is the worst possible response to a gesture whose whole job is to
say "this one".

The bar is a floating one now, at the foot of the view. Nothing above it
is re-laid out, so selecting changes what is drawn and never where.

The grid's viewport grows by the same 40px while the bar is there rather
than the Flickable shrinking, which is what keeps that change invisible
too: every cell stays exactly where it was and there is simply further to
scroll, so the last row can be brought clear of the bar instead of being
trapped under it.

It also swallows presses that land on it. A bar floating over the grid is
a bar a thumb can reach for and miss into.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 09:47:20 +02:00
dtourolleandClaude Opus 5 ea88216008 Follow the raw histogram's line numbers after the module doc grew
Five tags in dr-gpu moved by three lines when lib.rs's module doc was
corrected. Coverage is unchanged at 68.2%; only the anchors moved.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 09:31:16 +02:00
dtourolleandClaude Opus 5 49787414fb Regenerate the matrix after taking master in
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 09:24:38 +02:00
dtourolleandClaude Opus 5 091306f736 Gate the gesture vocabulary the way the matrix is gated
🐳 Android image / Build and push (push) Successful in 3s
Build and test / android-image (push) Successful in 3s
Build and test / Desktop (Linux) (push) Failing after 1h16m50s
Build and test / Layer separation (push) Successful in 39s
Traceability / Requirement traces (push) Successful in 50s
Build and test / Android (aarch64) (push) Successful in 22m27s
Three holes, all found by the gate catching itself out.

**Prose that mentions the tag was read as a tag.** `dr-ui`'s module list
carries a comment saying where the generated table comes from, and it
names `GESTURE:` in passing; the scan extracted that sentence fragment as
a gesture with no place and no way to perform it. A tag must now *open*
its comment. A line that merely mentions it is describing the mechanism,
not declaring a member of it, and position is the only thing that tells
the two apart — which also makes the string-literal guard fall out for
free rather than being a special case.

**Neither artefact was regenerated on commit.** They cite line numbers,
so they go stale on anything that moves a line — the sheet commit made
the document wrong about every gesture in `library.slint` without
touching a single one. The pre-commit hook that already keeps the matrix
in step now keeps these too, and unlike the matrix it *fails* rather than
shrugging when the scan does: a matrix that will not build leaves a stale
one in place, where a malformed gesture block means a user about to be
told the wrong thing.

**CI did not check them at all.** It does now, blocking. The matrix is
read; the gesture table is *shown to somebody using the application*, and
a stale one tells them to perform a gesture that no longer exists — from
which they will conclude the application is broken rather than the page.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 00:51:13 +02:00
dtourolleandClaude Opus 5 1cd5ab6815 Put the gesture reference in the application
The document the previous commit generates is for somebody reading the
repository. The person who needs it most is holding a tablet, has just
discovered that a hold does something, and has nowhere to ask what else
does.

So the same scan writes a table the application draws: a "Gestures"
button beside Settings, a sheet with the same scrim and dismissal as the
ones that file and name, and every gesture grouped by where it applies
with its touch, pointer and keyboard routes side by side. Not the `why` —
that is the argument for the design and belongs in the document; on a
phone-sized card it would bury the one line the sheet was opened to read.

The sheet's file knows nothing about what a gesture is. It draws the rows
it is handed, and the rows come from the generated table, because a help
screen with its text typed into it is a second description of one
behaviour — and the second description is always the one that goes stale.
The commit before this deleted a gesture; a hand-kept sheet would still
be describing it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 00:30:21 +02:00
dtourolleandClaude Opus 5 20c368d3fc Give each touch gesture one meaning, and give tap-to-open back
I broke opening a photograph. The dwell added in "Tell a tap on a
photograph from a hand going past" required a finger to stay down 120 ms,
and a deliberate tap is routinely quicker than that — so the grid stopped
opening anything. Duration was the wrong discriminator: a tap and a brush
are the same length.

**Travel is what separates them, and a graze is by definition a moving
contact.** A press now records where it landed and the release compares:
within 12px it is a tap, beyond that the hand was going somewhere else.
No dwell, so no deliberate tap can be refused, and the rule is the same
for a finger and a mouse — one rule instead of two, and the `touch`
argument the dwell needed goes away with it.

Two real conflicts went with it, because a gesture set that overlaps
itself is unlearnable however each half is documented.

**A drag was also a hold.** Grabbing a cell and moving inside 450 ms left
the hold timer armed underneath the drag, so it fired mid-gesture and put
the grid into selection mode nobody asked for — the drag finished into a
mode that changed what every later tap meant. Starting a drag now cancels
it, exactly as a pinch already did.

**A double tap was also a range.** In selection mode two taps on one cell
selected everything back to where selecting began: no visible state, no
warning, from a thing a hand does by accident. "Select to…" does that job
and announces itself first, so the double tap is gone and two taps are
now two toggles that land where they started. `extend_to_row` went with
it — a second range implementation that only the double tap reached,
where every other range goes through `apply_press`.

The resulting vocabulary, one meaning each: tap opens, tap-and-slide does
nothing, hold starts selecting, drag files, two fingers resize, and while
selecting a tap only ever toggles.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 00:09:37 +02:00
dtourolleandClaude Opus 5 2955cad654 Regenerate the matrix over a night's merges
Coverage 59.8% to 67.0% (120/179). Eight of those came from tagging what
was already built; the rest are tonight's features -- FR-CULL-3's peaking
half, FR-CULL-5, FR-PLAT-AND-5.

FR-PLAT-LIN-3 and NFR-COMPAT-2 stay untagged deliberately. Both were
satisfied by a manifest and a document, and there is no source file to
hang a tag on that would fail if the behaviour went away.

This is also the first commit tonight the pre-commit hook has checked.
Every branch used --no-verify, because the hook runs the traceability
build and the branches were under a no-build rule; the matrix each of
them left untouched is regenerated here, once, over all of them.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 23:21:44 +02:00
dtourolleandClaude Opus 5 f5edd49b6b Let a manual collection be put in the order it is meant to be seen in
`collection_members.position` and `Sort::CollectionPosition` have been in the
catalog since collections were, and nothing above dr-catalog has ever written
or read either: `collections::set_order` had no callers, and the grid ordered
everything by capture time whatever it was scoped to — dr-ui does not construct
a `Query` at all, it has its own `GRID_ORDER` constant. So a manual collection
was a set with an order nobody could see or change.

Three pieces, because it could not be fewer:

`grid_order_for` decides the ordering from the scope, and both readers take it
from there. That is the load-bearing part. An ordinal only names a photograph
relative to an ordering, so the window read and the span read have to agree —
a shift-click resolved through a different ORDER BY than the cells were drawn
with selects a different run than the one on screen, and the user finds out
when the export runs. `read_ids_span` already stated that invariant about
`GRID_ORDER`; this widens it to an ordering that depends on the scope.

Only a single manual collection has one. A set draws its descendants' images
too, and two children's positions are unrelated integers that interleave
arbitrarily; a smart collection has no member rows to carry a position at all.
Both fall back to capture time and refuse the drop rather than pretending.

The drop is on the cell, on whichever half of it the finger landed — the
trailing edge is the only way to name the last place in a collection, since
there is no cell beyond the last one to drop in front of.

`reordered` is pure and the membership is rewritten whole. `set_order` sets the
positions it is given and leaves the rest, so a partial write would interleave
the moved run with rows nobody touched; and it is read unfiltered, so what the
filter is hiding keeps its place relative to what the user can see.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 23:18:06 +02:00
dtourolleandClaude Opus 5 9d11554c71 Make the range gesture visible, and offer the whole grid at once
Touch has had a range gesture for as long as selection mode has: double-tap the
far end. It is invisible, it is unreliable on a grid that scrolls under the
second tap, and it extends from the anchor *before* the two taps moved it — a
rule subtle enough that the code needs two paragraphs to explain it to itself.
Nobody who was not told about it has ever used it.

"Select to…" is the same operation with state you can see. Press it, the strip
stops reporting and says "Tap the last photograph", and the next cell taken is
the far end. It reaches Rust as shift on `cell-pressed`, so it lands in
`apply_press` as the ctrl+shift it already is, and there is no third selection
policy to keep in step with the other two.

This is deliberately not the sweep gesture. A drag that paints cells can only
reach what is on screen, and the ranges that hurt on a tablet are longer than a
screenful — between the two taps here the user may scroll as far as they like,
and the run is resolved by the catalog rather than by what happened to be
loaded. A sweep is still worth having for short runs; it is not what this
should have rested on.

"Select all" beside it, asked of the catalog for the same reason: a select-all
that quietly meant "the hundred cells that happen to be loaded" is a lie the
user cannot see until the export runs.

The double-tap stays. It is tested, and an accelerator that costs nothing is
worth keeping for whoever has already learnt it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 23:18:01 +02:00
dtourolleandClaude Opus 5 d1f3b97245 Ask for the collection's name where the keyboard can reach it
"New collection from selection" created the collection under a placeholder
name and then opened the rename field in the sidebar tree.

On a tablet the sidebar is not on screen. It is instantiated all the same —
app.slint collapses it to zero width and `visible: false` rather than using an
`if`, because an `if` there is a layout loop Slint panics on — so the rename
field was created, its `init` took focus, and Android raised the on-screen
keyboard over a box nobody could see. Nothing else on the screen is focusable,
so the keyboard had nowhere to go: it stayed, the name could not be typed, and
the collection was already written under the name the user did not want.

Asked in a sheet instead, on the same card as the filing and keywording sheets,
before anything is written. That also fixes what was hiding behind it: an
abandoned rename used to leave a "New collection" in the tree, because the
collection existed before the name did.

`Field` gains `take-focus()` so a sheet whose field is the only thing to do in
it can answer the keyboard for the user — a function rather than a property,
because focus is an event and a bound property would re-take it on every
unrelated re-evaluation.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 23:17:40 +02:00
dtourolle 91fe6cf300 Merge master into partial-preset-scope
🐳 Android image / Build and push (push) Successful in 8s
Build and test / android-image (push) Successful in 8s
Build and test / Desktop (Linux) (push) Failing after 1h17m12s
Build and test / Layer separation (push) Successful in 56s
Traceability / Requirement traces (push) Successful in 1m33s
Build and test / Android (aarch64) (push) Successful in 1h0m38s
# Conflicts:
#	docs/traceability.md
#	ui/dr-ui/ui/app.slint
2026-08-29 22:02:03 +02:00
dtourolleandClaude Opus 5 754ab91347 Bring a Lightroom library across, and start with something in the list
Two halves of the same complaint: a preset sheet that opens on "No
presets yet" is homework, and a photographer with ten years of presets
in Lightroom has no way to bring them.

`dr-preset-xmp` reads Camera Raw `.xmp`. The mapping turned out to be
mostly a rename rather than a conversion, because Adobe and this
pipeline already agree: exposure is in stops in both, and contrast, the
four recovery controls, clarity, texture, vibrance and saturation are
all ±100 in both. That is not imitation, it is the convention raw
developers converged on — `highlights_shadows.yaml` cites it in as many
words. Only sharpening needed arithmetic, Adobe's 0…150 against our
0…100.

The white balance does not come across, and says so rather than
guessing. Adobe writes absolute Kelvin for a raw file where ours is a
relative nudge from what the camera recorded, so converting needs the
*target image's* as-shot white balance — exactly what a preset cannot
carry, since the same preset lands on a frame shot at 3200K and one shot
at 7000K. A guess would be wrong on most images and invisibly so.

A folder is read as readily as a file, nested, because that is the shape
an exported preset folder is in and importing ninety files one at a time
is asking someone not to bother.

`dr_pipeline::starter` is six presets a first run begins with, written
against this pipeline in its units and deliberately mild — a starting
point, not a caricature. They are seeded when the library *file* does
not exist rather than when the library is empty, so deleting all six
does not hand them back on the next launch.

Both of these name operations, and `ui_names_no_operation` was right to
stop them living in `ui/`. That test exists because the failure is
silent and cumulative, and it caught exactly what it was written for: a
preset called "Punch" is a statement about contrast, clarity and
vibrance, and a table mapping Adobe's vocabulary to ours is a statement
about the pipeline. Neither is a fact about an interface. So the starter
set went into `dr-pipeline`, and the importer into its own crate —
between two walls, since `dr-pipeline` depends on nothing on purpose and
XMP is real XML not worth hand-rolling.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-29 22:00:53 +02:00
dtourolleandClaude Opus 5 bb35665bd2 Let a paste carry some kinds of edit and not others
FR-DEV-6 asks for presets "covering a subset of the edit graph". What
landed with the named presets covered two subsets: everything, and
everything but the crop. "Match the colour but not the sharpening" had
no way to be said.

`Scope` is now a set of `Attribute` — the same six kinds every operation
already declares and the develop panel already builds its tabs from. The
photographer ticking "tone and colour" is naming the groups they
navigate by, and neither this module nor the interface has to name an
operation to do it (FR-DEV-3c).

The pleasing part is what left. Framing used to be excluded by an
explicit test against one operation's id; it is now excluded because
Geometry is not in the default set. The special case dissolved into the
general rule, and the argument for it — a crop is a decision about *this*
photograph, and carrying it across forty destroys forty compositions —
is now a statement about a kind of edit rather than about a node. All
thirty-three existing preset tests pass unchanged, which is the evidence
that the generalisation kept its promises.

One decision that is a field rather than a rule, because the two cases
genuinely differ. An operation this build cannot classify — from a newer
version, arriving over sync — travels under "everything" and "everything
but the crop", because those are claims about the whole edit and an
unrecognised operation is part of it (FR-NC-8). It does not travel under
a hand-picked set, because that is a claim about kinds, and an unknown
kind is not one of the kinds that were ticked.

The settings page's "Copy crop and rotation" checkbox is gone, replaced
by the same chips the preset sheet draws. It asked the right first
question — geometry is the kind whose accidental travel destroys work —
but it was the only question a boolean could ask. The field stays in
`Settings`, read exactly once to seed the new set, so anyone who had
ticked it keeps their behaviour.

The chips are deliberately not in the develop column. Six of them there
would set the width of the whole sidebar, which is the bug `ChipGrid`'s
comment records at length.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-29 20:38:19 +02:00
dtourolleandClaude Opus 5 0d9f802f88 Regenerate the matrix that this branch is about
Eight requirements gained a tag in this branch's first commit, so the
generated matrix is stale until it is rerun. Coverage moves from 59.8%
(107/179) to 64.2% (115/179), and the untagged list drops from 72 entries
to 64.

Regenerating here rather than leaving it to the pre-commit hook, because
this branch's subject *is* the matrix: a reader comparing the two commits
should see the number move for a stated reason. The eight are R3, R6,
FR-DEV-1, FR-UI-6, FR-NC-6d, NFR-OPS-3, NFR-PORT-2 and NFR-SEC-3, and
none of them is new work — every one was already satisfied by code that
had simply never said so.

Six of the thirteen tag sites were new `TRACES:` lines rather than
additions to existing ones, so the tag count moves 896 → 902 while the
covered count moves by eight. Orphan tags remain at zero.

Run from source with `cargo run -p traceability -- report`, never from a
prebuilt binary, and note that the tool tracks line numbers — the six
prepended module tags shift every subsequent line in their own files,
which accounts for the churn in this diff that is not a coverage change.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 20:26:07 +02:00
dtourolleandClaude Opus 5 5a8327824f Keep an edit under a name, not just on the clipboard
FR-DEV-6 asks for three things — named presets, copy/paste between
images, and batch-apply to a selection. The last two have been here for
a while; this is the first.

The format is the sidecar's, deliberately. A preset *is* the non-default
half of a version, so the lines are the same lines keyed the same way,
which makes the two files diffable against each other and lets someone
debugging an edit paste a block from one into the other. One file rather
than one per preset: a preset per file makes the name a path, and every
name then has to survive a filesystem — a `/` becomes a directory, a
name differing only in case collides on one platform and not another,
and renaming becomes two operations that can half-fail. As a key in a
document it is none of those.

Unknown *parameters* needed no machinery. `Preset` already holds
whatever keys it is given and resolves them against the descriptors only
at apply time, so one written by a newer build survives by being stored.
Only lines that are not `op.param = float` at all are preserved
verbatim, which is the sidecar's version-skew promise made here too.

Applying is the paste path with a different source, so a preset reaches
a selection through the sidecar read-modify-write that was already
there: no graph, no decode, no GPU, forty files or one.

Two smaller decisions worth the record. A library that fails to parse is
held empty in memory and *not* written back over — settings regenerate
themselves and this is work, so a parse failure must not be the moment
it is destroyed. And every save persists immediately and rolls the
in-memory copy back if the write fails, so the sheet never lists a
preset the file does not have.

The grid's "Presets" button is gated on the selection alone, unlike the
"Paste to 40" beside it. That button needs a clipboard armed this
session; the preset list is whatever was saved last month, and hiding it
behind an unrelated action is what makes a feature only its author knows
about.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-29 20:07:14 +02:00
dtourolleandClaude Opus 5 5133e53bc8 Give back what a straighten took, when the angle comes back
Build and test / Desktop (Linux) (push) Successful in 2h16m6s
Build and test / Layer separation (push) Successful in 52s
🐳 Android image / Build and push (push) Successful in 4s
Build and test / android-image (push) Successful in 4s
Traceability / Requirement traces (push) Successful in 51s
Build and test / Android (aarch64) (push) Successful in 47m10s
The auto-crop only ever shrank. Straighten to 20 degrees and the corners
are cropped away correctly; come back to 3, or all the way to zero, and
the crop stays at the size 20 degrees demanded. Nothing on screen explains
why the photograph is still small, and the only way back was undo.

The cause was that each correction was computed from the previous
correction's output, so it accumulated: every angle the slider rested at
took its cut and none was ever returned. The fix is to stop accumulating
and recompute. The applied crop is now always the user's own rectangle
fitted into the current angle's safe area, so as the angle falls and that
area opens up the crop grows back — and stops, exactly, at the rectangle
they chose. At zero the safe area is the whole frame and the fit is the
identity, which is what carries it the last of the way home. There is
deliberately no early exit for the upright case now: that exit is
precisely what would strand the crop small.

**The intent is remembered as a pair, so it repairs itself.** The session
keeps `(applied, intended)` — what the correction wrote, and what it was
derived from — and trusts the remembered intent only while the graph still
holds `applied`. Every other route to the crop leaves something else
there: a handle dragged, a ratio chosen, a sidecar loaded, a paste, an
undo. That mismatch is the signal the memory is stale, and the current
rectangle becomes the new intent. The alternative was a write into this
field from each of those paths, which is the kind of bookkeeping that is
correct until someone adds a seventh path.

Dragging a handle therefore *is* the user choosing, including at a
non-zero angle: the correction will not later grow the crop past what they
dragged it to.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 19:16:43 +02:00
dtourolleandClaude Opus 5 ff6c313bab Wrap the chip rows, so one six-choice parameter stops sizing the sidebar
The develop column asked for 482px. Every comment in it, a dozen of them,
describes it as a 280px column — and on a tablet it was taking 40% of the
screen from the photograph it exists to serve.

Measured rather than guessed, because none of it is visible in the source:
the column takes the widest width any panel declares, `AdjustPanel` wanted
482 of it, its rows wanted 458, and after the 44px scroll gutter the
widest single row was 414. That row is `film_sim`'s `format` — six film
formats from 35mm to 8x10, laid out by `Segmented` as six 64px chips in a
`HorizontalLayout` that cannot wrap. 6 x 64 + 5 x 6 = 414, exactly.

Nothing about that is the film simulation's fault. An operation declares
its parameters and the panel decides how to draw them (FR-DEV-3a), so a
node is entitled to offer six choices; it is the drawing that has to cope.
Any future operation with a five-choice enum would have done the same
thing, silently, to every screen in the application.

`ChipGrid` is the general answer: chips placed by index arithmetic inside
a plain `Rectangle`, wrapping at a column count, declaring a width that
depends on the columns rather than on the number of choices. `Segmented`
takes a `columns` property and uses it when asked — zero, one row however
many chips, stays the settings page's behaviour, where the page is
full-width and reading the alternatives side by side is the whole argument
for chips over a dropdown.

The generated enum rows and the curve-channel picker now wrap at three,
and the crop ratio chips use the shared grid instead of the private copy
of it they shipped with last week.

The column measures 351 now, down from 482, and what sets it is the mode
strip rather than a parameter — which is a control the user chose to have
on screen rather than an accident of one node's variant list.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 19:16:43 +02:00
dtourolleandClaude Opus 5 bd33487054 Say which axis each export dimension is, in the one place that renders
The box modes put two numeric fields one above the other, and on screen
they are two anonymous numbers: `TextRow` draws its label behind the
field rather than above it, so "Width" and "Height" never appear. That
fault is older than this feature — the storage panel's cache sizes have
the same missing labels, and the single "Size value" row always did — and
it belongs in its own change rather than being fixed under cover of this
one.

But one unlabelled number is survivable and two are not, so the axis goes
where the page does render it: the unit. It reads "3840 px wide" above
"2160 px high", which is the sentence the user is trying to write anyway.

The `label` bindings stay correct and stay where they are, so this
becomes redundant rather than wrong the day `TextRow` is fixed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:49:21 +02:00
dtourolleandClaude Opus 5 c38df01bf7 Hang the auto-crop off the slider's commit, not off the pointer passing over
The straighten auto-crop worked once and then stopped. It was keyed on
`PlainSlider::drag-changed`, whose name is a lie inherited from what it
forwards: `SliderTrack` defines `engaged` as `has-hover || claimed`, and
it has to — a `Flickable` withholds the press for 100ms, so hover is the
only signal that arrives in time to stand the scrolling ancestor down.
That is the right definition for the job it was written for and the wrong
one for this.

Keyed on hover, the correction fires when the pointer first crosses the
track — before anything has been dragged — and then does not fire again
for as long as the pointer stays on it, however many times the angle is
changed. Which is exactly what "it only works once" looks like.

`SliderTrack` already publishes the signal this wants. `committed` fires
on release, once per gesture, after the final `changed`, and its doc
comment says so in as many words. It was simply not forwarded through
`PlainSlider`, so it now is, and the geometry panel's callback is a
`committed(float)` rather than a `drag-changed(bool)`.

The angle needs no re-applying here: the track emits its last `changed`
before it commits, so the value is already in the graph by the time this
runs. What is left is the correction that has to happen exactly once.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:49:21 +02:00
dtourolleandClaude Opus 5 2c8768ac29 Lay the ratio chips out by hand, because Slint will not lay them out
The ratio chips shipped inside a `GridLayout` with `row` and `col`
computed from the repeater's index. It compiles. On screen every chip
piles into a single row that runs off the panel, and the terminal fills
with

    Internal error in Slint: RepeatedItemTree::grid_layout_input_data()
    not implemented

once per frame. A `for` inside a `GridLayout` is not supported, and
nothing says so until it is running.

A `HorizontalLayout` is not the answer either: six chips side by side
need over 400px, and this column's width is the largest width any panel
declares — so one row would widen every other panel in the application to
fit a control that is on screen only while cropping.

So the grid is arithmetic over the index inside a plain `Rectangle`. It
costs the layout engine nothing, it wraps a seventh ratio onto a third
row by itself, and — because a bare `Rectangle` declares no preferred
width — it takes the width the column already has instead of setting it.
The Portrait chip gets a container of its own for the same reason: a
`ChoiceChip` dropped straight into a `VerticalLayout` is stretched the
full width of the panel and reads as a button for the section rather than
as one more chip.

The three conditional pieces are also now individually-conditional
children of the one layout rather than a nested layout under a single
`if`, which is the convention `app.slint` and `masks.slint` already carry
notes about: a conditional nested layout under-reports its height here
and the panels below it draw on top of one another.

All of this was invisible in the source and obvious in a screenshot.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:49:20 +02:00
dtourolleandClaude Opus 5 52c655e6cf Turn the ratio lock with the photograph when it is turned
A quarter turn carries the crop with it — that is what makes turning a
photograph keep its composition rather than sliding the selection onto a
different part of the picture. So a rect locked to 16:9 comes out of the
turn at 9:16, of a frame whose axes have also swapped, and the lock was
left claiming landscape over a portrait rect. The next drag would then
snap it back upright and undo what the turn had just done.

The orientation switch now turns with it, on odd numbers of quarters.

`Original` is deliberately excluded, and getting that wrong flips it
twice: it is resolved against the framed size every time it is asked
for, and the turn has already swapped that frame's axes — so it has
turned by the time anything asks. `turns_with_the_frame` is the one
predicate that separates the two cases, with a test that pins both.

`CropAspect` arrived without tests of its own; it has them now, including
the round trip this fixes.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:49:20 +02:00
dtourolleandClaude Opus 5 3bb68cff69 Export at an exact resolution, and offer the panels worth naming
Export sizing could bound an image but not fix it. Long edge, short edge
and percentage all preserve the aspect ratio by letting one dimension
fall where it may, which is right for most work and useless against a
display that accepts one resolution and rejects everything else — a
television's art mode, a digital frame, a wallpaper slot.

FR-EXP-3 has always listed both halves of the answer, and this adds them.
**Fit box** scales to fit inside a width and height, so nothing is thrown
away and the result is smaller than the box on one axis unless the crop
already matches it. **Fill box** scales to cover the box and cuts the
overhang off the middle, so the file is exactly the pixels asked for.

Fill is the only mode in the file that discards image data, so two things
about it are worth stating. The overhang comes off symmetrically: the
crop tool is where a photographer decides which part of a frame survives,
and this stage having an opinion of its own would fight it. And locking
the crop to the same ratio leaves nothing here to cut, which is the
workflow the two features are meant to be used in.

With upscaling off and a source too small to cover, a fill box keeps its
*shape* rather than falling back to the source's: exporting a 3:2 file
where 16:9 was asked for is silently wrong in exactly the way the mode
exists to prevent, so the box shrinks instead. The existing rule — clamp,
never fail — is otherwise unchanged.

Four panel sizes are offered as buttons beside the fields. Getting 3840 x
2160 by typing four digits twice is a step at which the mistake is
discovered after the upload rather than before it. They fill in the
numbers and nothing else, in particular not the fit/fill choice: both are
legitimate against a screen, and guessing would discard the edges of a
photograph for a user who wanted them. The list is panels rather than
platforms, because a screen has one exact pixel count for ever where
"what a photo site wants" would rot in the file.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:49:20 +02:00
dtourolleandClaude Opus 5 d9eb8faffd Crop away the corners a straighten exposed, once the slider is let go
Turning a rectangle inside its own bounds exposes its corners: there is no
source pixel out there, and the shader renders it black. Nothing in the
render prevents that, deliberately — a free angle does not change the
output size, which is what leaves the frame where the user put it while
the slider moves. Correct during the drag; four black wedges on the
finished photograph.

Letting go of the slider now pulls the crop inside the area the angle
leaves defined. `Framing::max_inscribed_crop` already computed that
bound and had no caller; this is the caller its doc comment described.

**Once, at the end of the gesture.** Applied per frame it would shrink
the crop on every step of the slider and never grow it back, so a user
who overshot to 20° and came back to 3° would be left with a crop
ratcheted down by the excursion rather than by the angle they settled on.
Per gesture it is bounded by the angles actually rested at, and undo steps
back through them.

**The crop is fitted into the bound, not replaced by it.** A crop placed
deliberately off-centre is a decision, and an automatic correction that
recentred it would undo the user's work to fix a problem they did not
have. `CropRect::fitted_into` scales only as far as the bound demands and
then slides the rect the shortest distance needed to be inside — so a
ratio locked in the crop panel survives the straighten too, since the
shape is never touched.

It returns the rect unchanged, bit for bit, when nothing needed to move.
That matters more than it looks: this runs on every release of the
slider, including releases at zero, and a rect that drifted by a rounding
error each time would be an edit recorded for no reason.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:49:19 +02:00
dtourolleandClaude Opus 5 e6ad906bc1 Let the crop be held to a ratio while it is dragged
A photographer cropping for a print, a phone wallpaper or a 16:9 frame is
not choosing four edges — they are choosing one edge and a known shape.
Free-dragging every corner made them do that arithmetic by eye on every
drag, and get it slightly wrong.

The panel now offers Free, Original, 1:1, 3:2, 4:3 and 16:9, with a
Portrait switch for the ones that have two orientations. Original follows
the frame rather than naming a number, so it stays right on the next
photograph from another body and after a quarter turn.

**The ratio is of output pixels, and the rect is not.** `CropRect` is
stored in fractions of a frame that is not itself square, so holding a
shape needs the frame's size — `ratio * height / width` of the frame.
Skipping that gives a "1:1" crop that is square only on a square
photograph, which is the one case nobody would test on, so the conversion
lives in `CropRect::with_aspect` where it is explained and pinned by a
test that asserts the fractions are *not* equal.

Two decisions worth recording:

The reshaped rect **grows** onto the ratio rather than shrinking onto it,
then scales down only as far as the frame's edge demands. Fitting inside
instead makes a one-axis drag do nothing at all — the other axis clamps
the first straight back, and the handle simply refuses to move.

The overlay now reports **which corner the drag is holding**, because
reshaping onto a ratio has to know which corner is nailed down and only
the handle that took the press knows that. A move reports no corner and
keeps its shape: reshaping about a centre would pull an over-moved rect
smaller instead of sliding it along the edge.

The lock lives with the window rather than the session. A `DevelopSession`
is per image, and cropping a set of frames to one shape is exactly when
the lock earns its place. It is not an edit and reaches no sidecar — what
is saved is the rectangle it produced.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:48:51 +02:00
dtourolle 30162e80df Merge branch 'master' into clarity-reduced-base
# Conflicts:
#	docs/traceability.md
2026-08-29 13:27:04 +02:00
dtourolleandClaude Opus 5 bff95e25ad Let clarity's base be computed where it is still fully determined
Clarity's Gaussian sigma is 1.2% of the frame's shorter edge, so its radius
is a property of the viewport: 52 render pixels at 4K, two separable passes
of 105 taps each over 8.3 M pixels. That measured 33.9 ms — seven times the
entire fused point chain, for one slider — and is docs/technical-debt.md TD-4.

A detail pass may now declare `output_scale`, and clarity's base is computed
on a grid a quarter the size on each axis.

The pass that combines needs the blur *and* the full-resolution colour, and a
colour that has been through a quarter-scale target is no longer full
resolution. So a scaled pass cannot simply join the ping-pong: there are two
chains now. The full-resolution one carries the colour and no scaled pass
touches it; the reduced one carries the base and reaches the combining pass
through a second binding as `reduced_at()`.

The reduce is a dispatch of its own rather than something the first blur half
does on the way past, and that is the whole difference between this and the
strided kernel the module documentation rules out. A stride samples an image
that is not band-limited and aliases high-frequency content down into the
base, which is then subtracted, and arrives in the output as mottling across
smooth gradients. This band-limits first and samples after. What is discarded
is content the base could not represent at any resolution, because a Gaussian
at sigma = 26 px holds nothing above one cycle per 26 px and the quarter-scale
grid carries one per 8 — so the reduced base is not an approximation of the
full-resolution one, it is the same function sampled where it is still
determined.

Which is also why the scale belongs to the band rather than to the stage.
Texture's sigma is a decade finer, so the reduce pass's own box would be wider
than the Gaussian it was prefiltering; texture never reduces. And clarity
steps 4 -> 2 -> 1 as sigma falls, because a quarter of a small sigma is not a
Gaussian either — the case that gives up is the one that was already cheap.

`radius` stays in each pass's own pixels and `ComposedDetail::radius` multiplies
it back up, so 13 reduced pixels at scale 4 still report the 52 render pixels a
tile would have to be grown by. The halo a scheduler sees does not move.

The halo tests pass unchanged, which was TD-4's stated bar; they render at
1024 px and so exercise the reduced path rather than stepping around it. Added
`crossing_the_reduction_threshold_does_not_change_the_picture`, because
nothing yet compared the reduced form against a *less* reduced one — every
other test measures one form against itself. It renders the same edit either
side of the 4 -> 2 step-down and holds the peak excursion to 0.03 stops and
the reach to 2% of the frame.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 13:12:29 +02:00
dtourolle 3b5d564495 Try every GPU, not only the fastest one
Build and test / Desktop (Linux) (push) Successful in 2h7m41s
Build and test / Layer separation (push) Successful in 46s
🐳 Android image / Build and push (push) Successful in 3s
Build and test / android-image (push) Successful in 3s
Traceability / Requirement traces (push) Successful in 41s
Build and test / Android (aarch64) (push) Successful in 21m1s
`request_adapter` with `HighPerformance` returns one adapter and no
second chance. That is right on a healthy machine and wrong on one with
a sick GPU, which is not rare: observed 2026-08-29 on a laptop whose
discrete card had hit an NVRM assertion failure and a fullchip reset.
The driver still advertised it, wgpu dutifully picked it as the highest
performing, and the process died on it — while a working integrated GPU
and a working external card sat unused in the same enumeration. A photo
editor that will not start because the *fastest* GPU is broken, on a
machine holding two that are not, is worse than a slow one.

So: enumerate, order by preference, take the first that yields a device.
The ordering reproduces what `HighPerformance` meant, so a healthy
machine picks what it always picked and pays one enumeration for it. A
CPU adapter sorts last rather than being excluded — software rendering
is a poor experience and a working one.

Which GPU to prefer is now a policy rather than an assumption, because
the fastest is not obviously the right one. A 24 MP frame is ~96 MB of
RGBA and every upload and export readback crosses PCIe on a discrete
card, where an integrated GPU shares memory and crosses nothing — and
does not empty a battery.

Measured before choosing a default, on this machine's Iris Xe against
its RX 5700 XT. The fused colour pass is within 1.5x, which is the
shape shared memory suits. The neighbourhood stage is 5-8x slower, and
that decides it: clarity at 1920x1200 costs 20 ms on the iGPU, over the
budget on its own at the smallest size tested. So `Performance` stays
the default and `Efficiency` is offered rather than chosen
(`DARKROOM_GPU=integrated`).

docs/frame-budget.md carries the table, and says what it does *not*
show: the harness renders from a resident texture and never uploads or
reads back, so the transfer cost an iGPU avoids appears in none of it.
Import, export and the thumbnail sweeps may well go the other way.

What this cannot fix: a GPU sick enough to accept `request_device` and
segfault afterwards, which arrives as a driver crash rather than an
error. It moves the boundary from "the preferred adapter is unusable" to
"unusable and dishonest about it".
2026-08-29 12:43:10 +02:00
dtourolleandClaude Opus 5 da20d42d33 Merge master: pluggable storage, and a name that anchors
Conflicts were docs/traceability.md alone, and it is generated — so it
was regenerated rather than hand-merged. dr-face was untouched on the
other side; ui/dr-ui/src/faces.rs and identity_ui.rs auto-merged, the
first around recluster's anchoring and the second around load_faces.

Worth recording because the two branches met on the same problem from
different ends. Master's "Let a name hold a group together" is the fix
for the sixteen Catherines — fourteen of them empty — that this branch
found while measuring the library and reported without fixing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 12:30:01 +02:00
dtourolleandClaude Opus 5 b2250cc460 Measure a regroup on the tablet, not just on the desktop
The GPU question needed a number nobody had: how a regroup divides on
the hardware whose CPU is weakest. dr-face carries no weights and
touches no display, and dr-catalog's example needs only a catalog file,
so both run under adb shell against a copy of a real library.

On the same 18,143 faces — desktop against the tablet — scan 0.96s /
2.61s, agglomerate 1.69s / 2.16s, score 0.26s / 0.40s. The scan is half
the pass on the tablet and under a third on the desktop, because twenty
cores of AVX2 pull ahead of NEON much further than the merge engine's
single-threaded hashing does. So a GPU GEMM is worth roughly 2× a
regroup on the tablet and 1.5× here, and it is the tablet that should
decide whether it is built.

The two architectures agree exactly: the same 1,531,969 evidence pairs,
the same 2,518 groups holding the same 16,246 faces, the same
reliability table. That is a better check on the NEON kernel than the
unit test can be.

Two instruments, both read-only: the example now prints its phases, and
dr-face gains scan_bench, which needs no library at all and so can
answer "how fast is this machine" on a device with nothing on it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 12:16:48 +02:00
dtourolleandClaude Opus 5 ebb7d3cf5c Score a suggestion against the people the user has named
The number beside a suggestion was the mean calibrated probability
between the face and the rest of its group, which measures the wrong
thing twice. It punishes coverage: a person with two hundred faces over
fifteen years is *meant* to have members a given photograph is
orthogonal to, so a correct suggestion onto a well-photographed person
scored low for being well photographed. And it never asked who else the
face might be — a face matching Anna at 0.95 and nobody else, and one
matching Anna at 0.95 and her sister at 0.93, came out identical, when
the second is the only one worth the user's attention.

dr_face::assign answers both, and multiplies them: the mean of the best
ten calibrated matches into the identity (the old mean, capped, which is
what stops coverage counting against it), times that identity's share of
the evidence against every *named* rival.

Only named people compete, and per person rather than per group. Both
halves of that had to be measured on a real 18,000-face library rather
than reasoned about. Normalising across every group made the number
useless — median suggestion 21%, four in five under half — because
clustering leaves one person spread over many groups, so a face competed
against itself; and keying rivals by group left Catherine competing with
Catherine, median 39%. Per named person: median 99.5%.

Rivals are gathered below the merge threshold, down to even odds: a
named person matching at 0.6 will never be merged into but is exactly
the competition to discount for. That would be a second similarity scan,
the expensive half of regrouping a library, so cluster_scored scans once
at the looser floor and hands the merge engine the subset at or above
the threshold — pair for pair what it would have scanned for itself,
held to that by a test.

Leave-one-out over that library's 2,702 confirmations across 54 named
people: 99.33% of faces placed on the right person against the old
mean's 99.15%, and the number shown for the right person moves from a
median of 90.4% to 99.3%. It errs low — 100% correct wherever it states
80% or more — which is the safe direction, and docs/faces.md §9.1 says
plainly that the low bands are not calibrated.

The example that measures it comes too: this is a claim about a
library's numbers, and nobody should have to take it on faith.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 10:44:01 +02:00
dtourolle 4168d67cfa Do not push a catalog over one we could not read
`sync_catalog` is a read-modify-write over a file another device also
writes: take theirs, merge, push the union. It was shaped

    if let Ok(bytes) = backend.get(&RemoteId::Path(target), None).await {

which folds *every* failure into "there is no remote catalog" and carries
straight on to the upload. On a placeholder library the snapshot in
`.darkroom-derived/` is dehydrated like anything else, so the read failed
every time and each sync pushed our catalog over theirs unmerged —
taking the other device's collections and their members with it.

The same shape as the sidecar bug, and the same fix: a read that fails
for anything other than `NotFound` stops the upload and says why. An
unreadable or unopenable snapshot stops it too — "will not parse" is not
"is not there". This is what `NotFound` and `NotMaterialised` being
separate errors is *for*: one means ours is the whole truth, the other
means do not dare.

Shard downloads go through the same fetch-on-demand read. They logged
and skipped before, which on a library the client keeps dehydrated is
every shard, every pass, and a peer's thumbnails and faces silently
never arriving.

And `put` over a placeholder now replaces it rather than refusing.
Refusing was over-cautious of me: derived state lives inside the library
folder, so a folder the client had dehydrated could never be written to
again. An unconditional write replaces the whole file, so there is
nothing in the stub to keep — content first, then the placeholder, since
in a synced tree an absence is a deletion that propagates. `IfMatch`
still refuses, because a stub's validator describes the stub; `IfAbsent`
fails, because the file is there and only its content is not.
2026-08-29 10:36:26 +02:00
dtourolle 702d83c218 Measure the borrow, rather than asserting it bounds the disk
The claim that hydration-as-a-borrow makes peak disk the working set
rather than the library was so far an argument. `--example vfs_cycle`
runs it: 100 photographs of 25 MB, 90 dehydrated, a pass over all of
them through the real engine.

Peak 275 MB — the resting set plus one photograph — against 2,500 MB
had the pass simply fetched everything. Back to 250 MB afterwards, and
all ten files the user already kept still there, which is the half of
the contract that matters more.

Recorded in docs/storage.md §6.3 and ARCH §9.0a, because a bound argued
from a number nobody measured is one that gets quietly lost.
2026-08-29 09:57:53 +02:00
dtourolle 5768100816 Borrow the library to index it, and give it back
The passes that need every photograph's bytes — thumbnails, face
indexing — now borrow each one and release it at the end. On a
placeholder library that is the difference between peak disk being the
working set and being the whole library.

Including on cancellation, which was nearly missed: the face sweep
returns mid-loop when the user presses Stop, and without releasing there
the disk is spent and nothing is delivered for it.

`materialise` now answers whether *it* fetched the content. The pool used
to work that out by listing a file's parent directory — one listing per
file across a library — when the backend already had to `stat` it to
decide whether to ask. One syscall instead of a directory walk, and it
removes the bug class the tests found earlier: a file at the library root
has no `parent()`, so every one of them read as already-downloaded.

**Pinning is the retention control**, and it drives the model the catalog
already had rather than a second one. `tier_desired` is what the user
asked to keep hydrated, `pending_pins` is the resumable work list, and a
pinned collection is never dehydrated for the same reason it was never
evicted. It was in fact *broken* here before: `get` on a stub failed, and
the pin worker logged "one unreadable file must not abandon the whole
pin" and silently did nothing.

Pinned originals on such a library are recorded with `path = NULL`
(`Cache::record_in_place`) rather than copied under `originals/`. Two
reasons, and the second is the important one. A copy would hold every
pinned photograph twice, with the budget able to evict the half that was
not costing the disk. And `release` deletes the file a row names — so a
row that names none cannot delete anything, which puts the one
catastrophic operation out of reach by construction rather than by
remembering not to call it. Deleting a materialised file inside a synced
tree removes the photograph from the server and every other device.

Handing disk back is `spawn_dehydrate`, which asks the client.

Two gaps written down rather than papered over (docs/storage.md §7): a
hydrating pass cannot yet quote its cost, because a stub reports no size;
and the two sweeps hold separate pools, so a library indexed for both
fetches twice.
2026-08-29 09:57:53 +02:00
dtourolle c102ba9df2 Treat a placeholder as the photograph, not as a one-byte file
The folder connector was pointed at a Nextcloud VFS tree and got three
things wrong, the first of which loses work.

**A dehydrated sidecar read as absent.** `a.drsc` does not exist when the
client has dehydrated it — only `a.drsc.nextcloud` does — so `get` missed,
`.ok()` swallowed the `NotFound`, and the sidecar writer took that for
"there is no sidecar yet" and wrote a fresh document over the existing
one. Every edit another device had put there went with it. That function's
own doc comment calls this the exact loss the format's unknown-key
preservation exists to prevent.

**A stub was catalogued as a 1-byte image**, and ARCH §9.0 measured this
machine at 121,785 placeholders against 10,267 real files — so a folder
library on a synced tree was ~92% broken rows.

**Identity changed on hydration**, so downloading a photograph looked like
a delete and an add, orphaning its thumbnail and its face rows.

Entries now carry the photograph's own name and a `materialised` flag;
`get` on a stub returns the new `RemoteError::NotMaterialised`, which is
distinct from `NotFound` precisely because the sidecar writer must treat
them differently — it fetches the sidecar and merges, or leaves the entry
queued.

Hydration is a **borrow**. `BorrowPool` records what was on disk before it
asked, so `release_all` dehydrates only what a pass brought and leaves
what the user already had. Reference counted: the thumbnail pass and the
face pass meet on the same RAW, and without counting the first to finish
dehydrates the file the second is reading. A borrow against a plain folder
or a server does nothing, so a pass written for VFS runs everywhere.

Releasing means asking the client to dehydrate and never deleting: a
deletion inside a synced tree propagates to the server and removes the
photograph from every device.

Not a second backend — the capability is per *connection*, not per type,
since the same folder hydrates only while the client runs. The convention
arrives through a detector the registry supplies, so `dr-sync-folder`
still knows nothing about any client's protocol.

ARCH §9.0a records this as an amendment: finding 3 rejected hydration
because it costs 100× a range read, and that comparison assumed a
connector was available. A folder library has none.
2026-08-29 09:57:52 +02:00