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JamesandClaude Opus 4.7
d8486a7c4d
Part of Phase 2 of the distributed rendering plan (determinism hardening).
See DISTRIBUTED-RENDERING-PLAN.md §5.2 (browserGpuMode row) and §9.3
(BROWSER_GPU_NOT_SOFTWARE typed failure).
Adds packages/engine/src/utils/assertSwiftShader.ts:
- assertSwiftShader(page, readInfo?) — navigates to chrome://gpu, reads
the GL_VENDOR / GL_RENDERER rows from browserBridge.gpuInfo_, throws
SwiftShaderAssertionError ({ code: "BROWSER_GPU_NOT_SOFTWARE" }) if
the active backend isn't SwiftShader.
- readWebGlVendorInfo(page) — extracted helper so tests can stub the
info read without spinning up real Chrome.
- SwiftShaderAssertionError + BROWSER_GPU_NOT_SOFTWARE constant exposed
so the Phase 3 distributed adapter can match typed non-retryable
failures.
Re-exported from packages/engine/src/index.ts. No caller invokes it yet;
Phase 3 renderChunk() will run it post-launch.
In-process behavior is unchanged — assertSwiftShader is a new pure utility.
Producer regression baselines remain byte-identical.
This is part of a stack of 10 PRs; this is PR 2 of 10.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>