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refactor(tauri): use magnotia_core::hardware::vulkan_loader_available

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Delete the local duplicate fn and libloading dependency from src-tauri;
import the canonical implementation from magnotia-core::hardware instead.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
jars
2026-05-09 12:08:16 +01:00
parent b991355cb0
commit d6bde52d6e
2 changed files with 1 additions and 35 deletions
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5
src-tauri/Cargo.toml
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@@ -57,11 +57,6 @@ serde_json = "1"
tokio = { version = "1", features = ["rt", "sync"] }
arboard = "3.6.1"
# Runtime shared-library probe for the Vulkan loader (active compute
# device detection, brief item #1). We do not call any vulkan symbols
# — we only need to answer "is libvulkan resolvable from the loader's
# default search path right now?".
libloading = "0.8"
# SqlitePool is named directly from src-tauri/src/lib.rs (the AppState
# stores it). Must be unconditional, not Linux-only — naming a type from

31
src-tauri/src/commands/models.rs
View File

@@ -6,7 +6,7 @@ use tauri::Emitter;
use crate::commands::security::ensure_main_window;
use crate::AppState;
use magnotia_core::constants::WHISPER_SAMPLE_RATE;
use magnotia_core::hardware::{self, CpuFeatures};
use magnotia_core::hardware::{self, vulkan_loader_available, CpuFeatures};
use magnotia_core::model_registry::{self, Engine, LanguageSupport, ModelEntry};
use magnotia_core::types::{AudioSamples, ModelId, TranscriptionOptions};
#[cfg(feature = "whisper")]
@@ -319,35 +319,6 @@ pub struct LanguageSupportInfo {
pub language_count: u16,
}
/// Best-effort probe for the Vulkan loader shared library.
///
/// whisper.cpp's Vulkan backend refuses to initialise if `vulkan-1.dll`
/// (Windows) / `libvulkan.so.1` (Linux) / the MoltenVK bundle (macOS)
/// is missing at runtime. We probe via `libloading::Library::new`;
/// failure means whisper.cpp will silently drop back to CPU, and the
/// user deserves to know before they start wondering why a 14-second
/// clip takes two minutes.
fn vulkan_loader_available() -> bool {
#[cfg(target_os = "linux")]
let candidates: &[&str] = &["libvulkan.so.1", "libvulkan.so"];
#[cfg(target_os = "windows")]
let candidates: &[&str] = &["vulkan-1.dll"];
#[cfg(target_os = "macos")]
let candidates: &[&str] = &["libvulkan.1.dylib", "libMoltenVK.dylib"];
#[cfg(not(any(target_os = "linux", target_os = "windows", target_os = "macos")))]
let candidates: &[&str] = &[];
for name in candidates {
// SAFETY: libloading::Library::new loads a shared library and returns
// a handle that is dropped at the end of this iteration. No symbols
// from it are called, so we just need the open-for-probe semantics.
match unsafe { libloading::Library::new(*name) } {
Ok(_lib) => return true,
Err(_) => continue,
}
}
false
}
/// Compile-time target signalling used by `compose_accelerators`.
/// Split out so the pure-function behaviour is testable without `cfg!`