[P1] Implement the Xorg screenshot capture backend #19

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opened 2026-07-18 00:00:44 +00:00 by lost-rob0t · 0 comments

lost-rob0t commented

2026-07-18 00:00:44 +00:00

(Migrated from github.com)

Goal

Capture desktop pixels on Xorg through the shared capture interface.

Requirements

Full-desktop capture for v0.1 with multi-monitor awareness.
Optional focused-window crop based on validated metadata.
Capture directly into memory without temporary files.
Preserve timestamps, dimensions, monitor geometry, and capture provenance.
Respect lifecycle state and pre-capture policy decisions on every invocation.
Bound capture duration and handle display disconnects safely.

Acceptance criteria

No capture occurs while off, paused, locked, denied, or faulted.
Captured buffers flow directly into the in-memory redaction pipeline.
Multi-monitor and scaling fixtures are covered.
Backend failure cannot produce a plaintext screenshot artifact.

Depends on

## Goal Capture desktop pixels on Xorg through the shared capture interface. ## Requirements - Full-desktop capture for v0.1 with multi-monitor awareness. - Optional focused-window crop based on validated metadata. - Capture directly into memory without temporary files. - Preserve timestamps, dimensions, monitor geometry, and capture provenance. - Respect lifecycle state and pre-capture policy decisions on every invocation. - Bound capture duration and handle display disconnects safely. ## Acceptance criteria - No capture occurs while off, paused, locked, denied, or faulted. - Captured buffers flow directly into the in-memory redaction pipeline. - Multi-monitor and scaling fixtures are covered. - Backend failure cannot produce a plaintext screenshot artifact. ## Depends on - #8 - #17 - #18