GSP

GSP is a backend-independent graphics session protocol for scientific visualization.

This repository owns the semantic protocol, capability and diagnostic model, backend provider interface, conformance corpus, and the first-party Matplotlib and Datoviz adapters. It is a multi-distribution workspace; the repository root does not publish an umbrella wheel.

The repository is being curated from the historical vispy/GSP_API research prototype. See PROVENANCE.md and migration-manifest.json before importing implementation material.

Packages

• gsp-core imports as gsp and has no rendering-backend dependency.
• gsp-matplotlib imports as gsp_matplotlib and provides the reference/publication backend.
• gsp-datoviz imports as gsp_datoviz and provides the flagship GPU backend.

Backends register lazy providers in the gsp.backends entry-point group. gsp.discover_backends() lists installed provider metadata without importing Matplotlib or Datoviz; gsp.discover_backends(probe=True) performs dependency/API checks. Rendering always selects a backend explicitly with gsp.open_session("matplotlib"), gsp.open_session("datoviz"), or a caller-supplied ordered prefer= policy.

Start with the protocol and backend guide for session ownership, capability checks, queries, and backend limitations. High-level plotting journeys and reviewed artifacts live in the VisPy2 repository.

During the unpublished bootstrap, install the built wheels together from dist/; there is no repository-root umbrella distribution. The Datoviz adapter intentionally has no ordinary Datoviz dependency yet because the required RC3-compatible artifact is not published. Local development sets GSP_DATOVIZ_SOURCE=/path/to/datoviz for explicit source-checkout probing. That bootstrap is not a release installation claim.

The source repository is vispy/gsp. No public package release is configured during the bootstrap.