Unify sidecar production via SidecarBuilder

Renamed HeadlessSidecarBuilder to SidecarBuilder and reused it for live
loads. SceneLoader now constructs one per stream load, forwards meshReady
/instanceReady chunks alongside the viewport upload, and finalizes +
writes the sidecar at onStreamerFinished — no more GPU readback path
via ViewportWindow::snapshotModel (removed). Same code path now produces
sidecars for both live loads and the .rdbview offline export.

Sidecar use is opt-in per direction via SceneLoader::setShouldReadSidecar
and setShouldWriteSidecar; both default off so embedders that don't want
caching get a pure-streaming loader. ifcviewer-full and ifcviewer-minimal
opt in.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Dion Moult
2026-05-16 21:11:27 +10:00
parent 5f467cd8fa
commit 8b8fafa698
13 changed files with 212 additions and 210 deletions
@@ -47,17 +47,6 @@ void convertIfcToDatabase(SessionState& s, QWidget& host);
void exportGeometryDatabase(SessionState& s, QWidget& host);
void openSettings(SessionState& s, QWidget& host);
// Snapshots the in-memory geometry + element registry for a freshly streamed
// model and persists it as a sidecar next to the source IFC. Called after
// SceneLoader::loadedFromStream so subsequent loads can skip the stream phase.
void writeSidecarForLoadedModel(SessionState& s, ViewportWindow& vp, uint32_t mid);
// Persistent post-load handler. Call once at app startup. Whenever the
// session reports a model was streamed (not loaded from cache), persists a
// sidecar so the next load skips the stream phase. Connection lifetime is
// tied to `context`.
void addHandlers(SessionState& s, ViewportWindow& vp, QObject& context);
// Internal building blocks shared by commands here and by ProjectController.
// These NEVER call notify*() — the caller is responsible for emitting once
// at the end of its execution.