b6bd265176
Adds src-tauri/tauri.windows.conf.json with a bundle.resources list for vulkan-1.dll, libssl-3-x64.dll, and libcrypto-3-x64.dll shipped side-by-side with kon.exe, plus a src-tauri/resources/windows/README.md explaining how release engineers populate the directory (licensing constraints keep it manual rather than scripted). The runtime fallback is already live from commit A.1 #1: if the Vulkan loader is missing after launch, emit_runtime_warnings() fires a runtime-warning event (kind: vulkan-loader-missing) and get_runtime_capabilities() reports activeComputeDevice=cpu with a reason. The app starts and transcribes on CPU — degraded but never broken — so the acceptance criterion 'launches cleanly on a VM with no GPU' holds by construction. Matches Whispering #840/#829 and Buzz #1459 pain patterns. Co-authored-by: jars <jakejars@users.noreply.github.com>
30 lines
1.7 KiB
Markdown
30 lines
1.7 KiB
Markdown
# Windows bundle resources
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Files in this directory ship side-by-side with `kon.exe` to avoid the
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DLL-hell failure modes reported in Whispering #840 / #829 and Buzz
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#1459. They are **not** committed to the repo — populate them from a
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trusted source before running `cargo tauri build --target
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x86_64-pc-windows-msvc`:
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| File | Source | Why |
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|---|---|---|
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| `vulkan-1.dll` | [LunarG Vulkan SDK](https://vulkan.lunarg.com/sdk/home) runtime installer, or copied from `C:\Windows\System32\vulkan-1.dll` on a machine with Vulkan-capable GPU drivers | whisper.cpp's Vulkan backend refuses to initialise without it |
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| `libssl-3-x64.dll`, `libcrypto-3-x64.dll` | OpenSSL 3.x Windows build (e.g. shining-light installer) or copied from the user's `%SystemRoot%\system32` | reqwest → rustls transitively pulls these when TLS-backed downloads fail in CI; shipping them removes the "app fails to download model" class of bug |
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The runtime falls back gracefully if any of these are missing at launch:
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see `src-tauri/src/commands/models.rs::detect_active_compute_device`
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and `emit_runtime_warnings` — the app will emit a `runtime-warning`
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event with kind `vulkan-loader-missing`, downgrade the reported
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`activeComputeDevice` to CPU, and keep running. The bundle is a
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performance + reliability patch, not a load-bearing dependency.
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## Why isn't this a script?
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Licensing. We deliberately don't auto-fetch these DLLs from a CI job —
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the LunarG SDK ships under the Apache 2.0 license but redistribution is
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conditional on an acknowledgment, and the OpenSSL 3 bundling terms want
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a source-availability note in the installer. Manual placement keeps the
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redistribution legally clean per-release.
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Brief reference: docs/whisper-ecosystem/brief.md item #12.
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