* Compose: render in place and in bands; area-reduced and proxy thumbnails
render_tiled wrote every tile into a Vec and then copied them into the output:
two full-size float copies (6.3 GB for a 14000² document). Tiles are now
written straight into the output band by band.
New streaming APIs so large documents never need a full-size float
composite: render_bands (sink per band of ~8 MP), render_reduced (banded
area average, bit-identical to the old flatten-then-average thumbnail) and
flatten_to_surface (Flatten Image, Merge Visible, Copy Merged and the other
flattened-surface users).
thumbnail() reduces a downsampled proxy (moved from ui-egui to
compose::proxy, now also scaling spot channels) for documents over 16 MP
when that is faithful (no layer effects or vector masks), so navigator,
channel and histogram thumbnails of a 196 MP document cost milliseconds.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* GPU canvas: request the adapter's real limits; banded CPU fallback; navigator thumbnail
egui-wgpu asks for an 8192 px texture limit, so the wgpu compositor rejected
every document wider or taller than 8192 px and each refresh fell back to a
full CPU flatten. The desktop and web apps now request the adapter's own
max_texture_dimension_2d and max_buffer_size (gpu_canvas::use_adapter_limits);
the benches use the same limits.
The CPU fallback (documents beyond the GPU limit, or features it lacks) is
GpuCanvas::refresh: it renders and uploads the composite band by band
instead of a full float composite plus a full RGBA8 copy. The CPU canvas
texture is reduced in bands too, and the Navigator on the GPU canvas uses a
cached thumbnail instead of a full-resolution CPU composite per revision.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* IO: banded export and import; no full-size copies in encoders; larger decode limits
- Flat export renders the composite in bands and quantises each band; alpha
is dropped in place when every pixel is opaque. The single-layer native
path copies surface rows a band at a time (no f32 read_region and no
per-pixel Vec). Buffers come from try_reserve: Err, not an abort.
- PSD export encodes the merged image band by band into its planes (no
flatten, no second plane copy); near-opaque documents are re-encoded
without the white matte so the output is unchanged. Layer interleaved
bytes are freed before their planes are compressed.
- Flat import converts in ~32 MB bands (and not at all when already RGBA);
the PSD merged-image un-matte works per tile row.
- Encoders borrow the image when no conversion is needed (Image::converted)
instead of cloning it; PNG only copies 16-bit data for the byte swap.
- Decode limits: 2^30 pixels and 8 GiB on 64-bit targets (a 20000² JPEG
was refused at 2^28).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Filters: write tile results in memory-bounded groups
apply_tiled collected every tile's float result before writing any (3.1 GB
for a 14000² layer). Results are now produced and written in groups of about
256 MB (at least one tile per core).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* History: bound pixel memory by Preferences > Performance > Memory Usage
History::max_bytes caps the current document's tiles plus the tiles only
history holds (layers, masks, alpha channels); History::trim drops the
oldest states beyond it after every recorded step and when preferences
change, always keeping the last step undoable. The engine sets it from
memory_usage_mb, which was unused.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Large-image benchmark (14k / 20k): open, refresh, thumbnails, filter, stroke, saves
One operation per run on a cached synthetic photo, with the GPU device created
the way the app creates it, so /usr/bin/time -l reports that operation's peak
memory. Documented in docs/development.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Adjustments: full parameter sets for every kind, Hue/Sat ranges, CMYK/Lab tone channels
- doc: Hue/Saturation gains six colour ranges (HueRange), Gradient Map a dither flag,
Levels/Curves a ToneSpace (RGB, CMYK inks + black, Lab) for mode-native channels.
- engine: new adjust_params module (from_params over a base / to_params) used by
image.adjustments.*, layer.newAdjustmentLayer.* and layer.setAdjustment. Curves,
Color Balance, Channel Mixer, Black & White, Gradient Map and Photo Filter now honour
their params; bad params are BadParams errors; setAdjustment merges (empty = reset).
- compose/gpu: hue-range tables, CMYK/Lab tone channels (CPU; GPU falls back), dithered
Gradient Map, Black & White from grey/secondary/primary parts; GPU parity extended.
- io: hue2 ranges, grdm dither, CMYK/Lab Levels/Curves records round-trip.
- destructive adjustments use the document's tone transfer.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Adjustments UI: one editor per kind for Properties and Image › Adjustments dialogs
- adjust_editors: Brightness/Contrast (legacy), Levels and Curves (per channel in RGB, Gray,
CMYK and Lab, histogram behind), Exposure, Vibrance, Hue/Saturation (master + six ranges with
draggable range sliders, colorize, before/after spectrum), Color Balance (tones, preserve
luminosity), Black & White (six weights, tint colour), Photo Filter (presets or colour,
density), Channel Mixer (outputs, constant, monochrome, total), Posterize, Threshold
(histogram), Gradient Map (stops, presets, reverse, dither). Replaces the M7 placeholder.
- Properties previews live (GPU) while a control moves and commits one setAdjustment per gesture.
- adjust_dialog: Image › Adjustments opens the same editor modally; the canvas previews the
real command on the proxy, Preview checkbox, OK = one history step, Cancel leaves the doc.
- Curves (#43): hit-test at the press origin, Delete/Backspace removes the selected point when
the graph has focus, Cmd/Ctrl-click removes, dragging off removes (and back on restores),
arrows nudge; endpoints and the last two points stay; pressing the gradient bars does nothing.
- tone: histograms per channel space, of the image below a layer or of the target layer alone.
- kittests: every adjustment layer kind edited through the Properties panel with real input at
8/16/32-bit RGB, Gray, CMYK and Lab (#12); Curves point interactions; dialog preview/OK/Cancel.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* io tests: adjustment round trip covers the new Levels/Curves/Hue-Sat/Gradient Map fields
#60's round-trip tests predate #68's doc-model additions (tone space and black channel,
Hue/Saturation ranges, Gradient Map dither); fill them with their defaults.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
CI's `cargo fmt --all -- --check` has failed on every run because the
repo had no rustfmt config and was never formatted. Use the same settings
as EffectCraft/FilmCraft (max_width 160, use_small_heuristics Max), which
also keeps the churn small. Formatting only; no code changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Gradients/Patterns/Styles/Shapes/Tool Presets/Clone Source panels with
headless preset commands and a Custom Shape tool; Color card tabs match
Essentials. Character and Paragraph Styles (doc model, .pcraft, PSD style
sheets), Glyphs panel + type.insertText, Check Spelling (SCOWL-50 list).
Checkpoint also includes compiling in-progress work of the remaining agents.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brandon Thomas