Compositor.Windows v0.3.0

Compositor.Windows v0.3.0

Windows port of robbietilton/Compositor
(the macOS Swift app). Self-contained win-x64 build: unzip, run Compositor.App.exe.
No .NET install needed. Compositor.App.exe --smoke runs the headless render check.

What works in this build

• Document model, layers panel, brush painting with per-stroke undo/redo
• .comp project round-trip (v0.1 and v0.2 files still open)
• Filters: Gaussian / Motion blur, Add Noise, Lens Correction, Grain (bit-exact C kernels)
• IO parity: import (PNG / JPEG / GIF / BMP / ICO / WebP, drag-and-drop from Explorer),
  export PNG (with pHYs DPI) and JPEG (quality slider, matte colour, JFIF density),
  96 px import thumbnails, 100 MP import budget
• Layer transform is honoured when rendering: what you see on canvas is what the PNG/JPEG
  export contains (flip, rotate, scale, translate)
• Canvas limits match upstream DocumentLimits: 30,000 px per side, 200 MP per surface,
  document budget min(800 MP, max(200 MP, RAM/16))

Honest gaps

docs/PARITY.md is the contract: every upstream source file is a row with a status.
Not done yet, and listed there rather than hidden:

• Transform overlay drag handles (typed scale/rotate works, but no on-canvas handles)
• Downsample cache and tiled layer renderer (large-canvas performance)
• TIFF and HEIC import (unverified whether the pinned Skia build decodes them)
• Automatic update check (upstream uses Sparkle; no Windows equivalent wired up yet)
• Remove Background / content-aware fill: the ONNX subject-model path is proven to load
  and run, but the mask subsystem it needs is not built, so the menu entries stay disabled
• Layer masks, per-band Hue/Sat spectrum UI, feather / expand / contract selection

Verification

The zip's SHA256SUMS is the only way to check a download: the packaging toolchain is not
byte-reproducible, so rebuild-and-compare is not a valid check.

CI runs on every push to main: Core tests, App tests, and the headless smoke render.

Compositor.Windows v0.2.0

Pre-alpha dev preview. Self-contained Windows build (no .NET install needed). Unzip, run Compositor.App.exe (UI launches directly; use --smoke for the headless check). Features: document model, layers panel, brush painting with per-stroke undo/redo, .comp project round-trip.

Compositor.Windows v0.1.0

Pre-alpha dev preview. Self-contained Windows build (no .NET install needed). Unzip, run Compositor.App.exe (UI launches directly; use --smoke for the headless check). Features: document model, layers panel, brush painting with per-stroke undo/redo, .comp project round-trip.