mural 1.0.0

Capture any Flutter widget as an image, at any size. Screenshot huge lists, full pages, and even unseen widgets — past the GPU texture limit, always crisp, in constant memory.

Changelog

1.0.0

First release — capture any Flutter widget as an image, at any size: offscreen widgets, on-screen snapshots, and captures beyond the GPU texture limit (flutter/flutter#118024), streamed in constant memory.

• Capture: three doors on one Mural facade — capture (offscreen, staged with the caller's theme and text direction), captureBoundary (on-screen, snapshotted synchronously at the call), captureInto (streams into any Sink<List<int>>)
• Any size: captures in strips under a GPU limit learned from the engine's own responses; output size bounded by neither the GPU nor memory
• Fidelity: strip output byte-identical to a one-shot render — strip origins aligned to the engines' 8x8 dither matrix, bleed margin around interior seams for shadows and blurs; verified by a differential test against the framework's own rasterization
• Memory: peak working memory is one band plus one strip readback, set by memoryLimitBytes, independent of output size
• Readiness: one deterministic signal, MuralStage.ready(context) — no timer options
• Tasks: every door returns a MuralTask — awaitable, live progress (sealed MuralProgress family), cooperative cancellation
• Output: in-package streaming PNG (RFC 2083/1950/1951) encoded off the UI thread (isolate on native, CompressionStream on web); raw straight-alpha RGBA as the escape hatch
• Errors: sealed MuralError family — every failure typed and named, including MuralBudgetError when the memory budget and bleed cannot form a plan
• Platforms: Android, iOS, macOS, Windows, Linux, web — one codebase, zero runtime dependencies
• SDK: requires Dart >=3.11.0

Commits since initial (8)

• 5a9e74a release: v1.0.0
• 50050fe Merge pull request #2 from whuppi/dev
• 84f75d8 docs: cross-link device_io for saving/sharing the captured bytes
• 5beb774 ci: bump dorny/paths-filter from 4.0.1 to 4.0.2 in the actions group across 1 directory (#1)
• d72aa28 ci: restore byte-parity with the shared workflow stubs
• 1cbc810 ci: touch dispatch-only workflows so GitHub registers them
• 369c19b chore: nudge workflow registration for dispatch-only workflows
• 459bd56 chore: initial import of mural from the whuppi workspace