fix(audio): Windows playback stutter under GPU load (#334) (#426)

mirror of https://github.com/Psychotoxical/psysonic.git synced 2026-07-21 23:05:46 +00:00

* fix(audio): promote WASAPI render thread to MMCSS Pro Audio on Windows

Wraps the outermost audio source in a `PriorityBoostSource` that calls
`AvSetMmThreadCharacteristicsW("Pro Audio")` on its first sample. The
cpal output-stream callback runs `Source::next` on the WASAPI render
thread, which is otherwise normal-priority and gets preempted under
WebView2 / DWM / GPU pressure — producing the audible click/stutter
reported in issue #334. No-op on Linux/macOS (PipeWire/rtkit and
CoreAudio promote their audio threads externally).


* fix(build): repair Windows compile after audio split + lib decompose

Two pre-existing build breakers on Windows that surfaced after the
`use super::*;` cleanup (9cc74a7) and the lib-decompose refactor
(cfeec22):

- `audio/device_watcher.rs` lost the `output_enumeration_includes_pinned`
  import. Add it cfg-gated to `not(target_os = "linux")` since it's only
  called inside the non-Linux pinned-device fallback path.
- `lib_commands/sync/tray.rs::is_tiling_wm()` is `#[cfg(target_os = "linux")]`,
  but its Tauri command wrapper `is_tiling_wm_cmd()` is unconditional.
  Add a `#[cfg(not(target_os = "linux"))]` stub returning `false`.

No behavior change on Linux. Restores `cargo build` on Windows + macOS.

* perf(ui): pause cosmetic animations when window loses OS focus

Companion to the WASAPI MMCSS fix in this branch — issue #334
reported audible audio stutter on low-end laptops, partly traced
to WebView2 still compositing CSS animations + waveform canvas at
full rate while the user has alt-tabbed into another app.

Existing `data-app-hidden` / `data-psy-native-hidden` flags pause
animations only when the window is fully hidden (minimized or
behind a tray). When the window is visible-but-unfocused — the
common "music in the background while I work" case — every infinite
keyframe + 60fps rAF loop keeps running.

Add a parallel `data-app-blurred` flag driven by `window.focus`/
`window.blur`, plus matching `__psyBlurred` on the global window
object for imperative checks. The CSS rule that pauses every
`animation-play-state` on hidden gets a third selector for blurred.
WaveformSeek's two 60fps rAF loops (animated styles + settings demo)
extend their existing `document.hidden || __psyHidden` short-circuit
to also include the new blurred flag, falling back to the same
400ms polling path that already exists for hidden.

Verified visually on the dashboard: alt-tab → `<html
data-app-blurred="true">`, mesh blobs in the fullscreen player +
marquee + waveform 60fps loop all pause. Click back into the
window → blob/marquee/waveform resume immediately.

Cross-platform: focus/blur events fire reliably on all targets, so
the optimization applies to Windows, Linux (incl. WebKitGTK with
software compositing where the savings are largest), and macOS.

* chore: remove stale app-icon.png from repo root

* perf(ui): add 'Reduce animations' toggle that caps animated seekbar styles to 30 fps

Off by default. When on, animated seekbar styles (pulsewave, particletrail,
liquidfill, retrotape) skip every other rAF and advance the animation timer by
a doubled delta, so wave speed is unchanged while draws are halved. Aimed at
low-end Windows GPUs where the 60 fps shadow-blur loop drives ~40 % WebView2
GPU usage even when focused.

Toggle lives directly under the seekbar style picker in Settings → Appearance.
i18n in all 8 supported languages.

This commit is contained in:

Frank Stellmacher

2026-05-02 21:10:32 +02:00

committed by

GitHub

parent 7064ca500e

commit 2e9618cf54

22 changed files with 168 additions and 9 deletions

									
										src/vite-env.d.ts
									
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				@@ -3,6 +3,7 @@

				declare global {

				  interface Window {

				    __psyHidden?: boolean;

				    __psyBlurred?: boolean;

				  }

				}