wraith/src-tauri
Vantz Stockwell 48f9af0824
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perf: RDP dirty rectangle tracking — partial frame transfer
Root cause: Every GraphicsUpdate copied the full 8.3MB decoded image
into the front buffer, cloned all 8.3MB for IPC, and transferred all
8.3MB to the frontend — even when only a 100x100 pixel region changed.
During window drag, this created a 25MB/frame pipeline backup.

Fix:
- Track dirty rectangles from ironrdp's GraphicsUpdate(InclusiveRectangle)
- Write path: only copy changed rows from decoded image to front buffer
  (e.g. 100 rows × 1920 pixels = 768KB vs 8.3MB full frame)
- Accumulate dirty region as union of all rects since last get_frame
- Read path: if dirty region < 50% of frame, extract only the dirty
  rectangle bytes; otherwise fall back to full frame
- Binary IPC format: 8-byte header [x,y,w,h as u16 LE] + pixel data
- Frontend: putImageData at dirty rect offset instead of full frame
- Status bar: h-9 text-sm for 3440x1440 readability

During window drag (typical 300x400 dirty rect):
  Before: 8.3MB write + 8.3MB clone + 8.3MB IPC = 24.9MB per frame
  After:  480KB write + 480KB extract + 480KB IPC = 1.4MB per frame
  ~17x reduction in data movement per frame.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 10:38:26 -04:00
..
capabilities feat: Help menu + fix tab detach rendering 2026-03-26 14:07:45 -04:00
gen/schemas feat: Help menu + fix tab detach rendering 2026-03-26 14:07:45 -04:00
icons feat: Phase 1 complete — Tauri v2 foundation 2026-03-17 15:09:41 -04:00
src perf: RDP dirty rectangle tracking — partial frame transfer 2026-03-30 10:38:26 -04:00
windows fix: remove desktop shortcut from NSIS installer by default 2026-03-24 20:04:06 -04:00
build.rs feat: Phase 1 complete — Tauri v2 foundation 2026-03-17 15:09:41 -04:00
Cargo.lock fix: SEC-3/CONC-1/2/3 vault zeroize + async mutex + cancellation tokens 2026-03-29 16:40:10 -04:00
Cargo.toml merge: SEC-3/CONC-1/2/3 vault zeroize + async mutex + cancellation (resolved lib.rs conflict) 2026-03-29 16:41:47 -04:00
installer.nsi.template feat: Local PTY Copilot Panel — replace Gemini stub with real terminal 2026-03-24 20:43:18 -04:00
tauri.conf.json fix: 6 UX regressions — popups, themes, cursor, selection, status bar 2026-03-30 10:08:13 -04:00