fix(windows): low-latency audio output; hovering no longer reports touch moves

Cargo.toml

@@ -71,8 +71,12 @@ opt-level = "z"
 
 # Node-API hosts that export napi_* from a DLL rather than the executable (NativeScript Windows)
 # need the patched symbol lookup (the `[canvas patch]` hunks in crates/vendor/napi-sys/src/functions.rs).
+# WASAPI output in low-latency shared mode (IAudioClient3), so an `interactive` AudioContext on
+# Windows gets a ~5 ms engine period instead of 10 ms plus a full ring buffer (the `[canvas patch]`
+# hunks in crates/vendor/cpal/src/host/wasapi/device.rs).
 [patch.crates-io]
 napi-sys = { path = "crates/vendor/napi-sys" }
+cpal = { path = "crates/vendor/cpal" }
 
 [workspace.dependencies.wgt]
 package = "wgpu-types"

crates/vendor/cpal/Cargo.toml

@@ -0,0 +1,342 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2021"
+rust-version = "1.85"
+name = "cpal"
+version = "0.18.2"
+build = "build.rs"
+autolib = false
+autobins = false
+autoexamples = false
+autotests = false
+autobenches = false
+description = "Low-level cross-platform audio I/O library."
+documentation = "https://docs.rs/cpal"
+readme = "README.md"
+keywords = [
+    "audio",
+    "sound",
+    "playback",
+    "recording",
+    "cross-platform",
+]
+categories = ["multimedia::audio"]
+license = "Apache-2.0"
+repository = "https://github.com/RustAudio/cpal"
+
+[package.metadata.docs.rs]
+features = [
+    "asio",
+    "audioworklet",
+    "custom",
+    "jack",
+    "pulseaudio",
+    "realtime",
+    "realtime-dbus",
+    "wasm-bindgen",
+]
+rustdoc-args = [
+    "--cfg",
+    "docsrs",
+]
+targets = [
+    "x86_64-unknown-linux-gnu",
+    "x86_64-pc-windows-msvc",
+    "x86_64-apple-darwin",
+    "aarch64-apple-darwin",
+    "aarch64-apple-ios",
+    "wasm32-unknown-unknown",
+    "aarch64-linux-android",
+    "x86_64-unknown-freebsd",
+    "x86_64-unknown-netbsd",
+    "x86_64-unknown-dragonfly",
+]
+
+[badges.maintenance]
+status = "actively-developed"
+
+[features]
+asio = [
+    "dep:asio-sys",
+    "dep:num-traits",
+]
+audioworklet = [
+    "dep:futures-channel",
+    "dep:futures-util",
+    "wasm-bindgen",
+    "web-sys/Blob",
+    "web-sys/BlobPropertyBag",
+    "web-sys/Url",
+    "web-sys/AudioWorklet",
+    "web-sys/AudioWorkletNode",
+    "web-sys/AudioWorkletNodeOptions",
+]
+custom = []
+default = []
+jack = ["dep:jack"]
+pipewire = ["dep:pipewire"]
+pulseaudio = [
+    "dep:pulseaudio",
+    "dep:futures",
+    "dep:portable-atomic",
+]
+realtime = [
+    "dep:audio_thread_priority",
+    "dep:alsa-sys",
+]
+realtime-dbus = [
+    "realtime",
+    "audio_thread_priority/with_dbus",
+]
+wasm-bindgen = [
+    "dep:wasm-bindgen",
+    "dep:wasm-bindgen-futures",
+    "dep:futures-channel",
+    "dep:futures-util",
+]
+
+[lib]
+name = "cpal"
+path = "src/lib.rs"
+
+[dependencies.dasp_sample]
+version = "0.11"
+
+[dev-dependencies.anyhow]
+version = "1.0"
+
+[dev-dependencies.clap]
+version = ">=4.6, <5"
+features = ["derive"]
+
+[dev-dependencies.hound]
+version = "3.5"
+
+[dev-dependencies.ringbuf]
+version = "0.4"
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies.futures-channel]
+version = "0.3"
+optional = true
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies.futures-util]
+version = "0.3"
+features = ["alloc"]
+optional = true
+default-features = false
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies.js-sys]
+version = "0.3"
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies.wasm-bindgen]
+version = "0.2"
+optional = true
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies.wasm-bindgen-futures]
+version = "0.4"
+optional = true
+
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies.web-sys]
+version = "0.3"
+features = [
+    "AudioContext",
+    "AudioContextOptions",
+    "AudioBuffer",
+    "AudioBufferSourceNode",
+    "AudioNode",
+    "AudioDestinationNode",
+    "Window",
+    "AudioContextState",
+]
+
+[target.'cfg(any(target_os = "ios", target_os = "tvos", target_os = "visionos"))'.dependencies.block2]
+version = "0.6"
+
+[target.'cfg(any(target_os = "ios", target_os = "tvos", target_os = "visionos"))'.dependencies.objc2-avf-audio]
+version = "0.3"
+features = [
+    "std",
+    "AVAudioSession",
+    "AVAudioSessionTypes",
+]
+default-features = false
+
+[target.'cfg(any(target_os = "ios", target_os = "tvos", target_os = "visionos"))'.dependencies.objc2-foundation]
+version = "0.3"
+features = [
+    "block2",
+    "NSDictionary",
+    "NSNotification",
+    "NSOperation",
+]
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.alsa]
+version = "0.11"
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.alsa-sys]
+version = "0.4"
+optional = true
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.audio_thread_priority]
+version = "0.35"
+optional = true
+default-features = false
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.futures]
+version = "0.3"
+optional = true
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.jack]
+version = "0.13.5"
+optional = true
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.libc]
+version = "0.2"
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.pipewire]
+version = "0.10"
+features = ["v0_3_53"]
+optional = true
+
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd"))'.dependencies.pulseaudio]
+version = "0.3"
+optional = true
+
+[target.'cfg(not(target_has_atomic = "64"))'.dependencies.portable-atomic]
+version = "1"
+optional = true
+
+[target.'cfg(target_os = "android")'.dependencies.audio_thread_priority]
+version = "0.35"
+optional = true
+default-features = false
+
+[target.'cfg(target_os = "android")'.dependencies.jni]
+version = "0.22"
+
+[target.'cfg(target_os = "android")'.dependencies.libc]
+version = "0.2"
+
+[target.'cfg(target_os = "android")'.dependencies.ndk]
+version = "0.9"
+features = [
+    "audio",
+    "api-level-26",
+]
+default-features = false
+
+[target.'cfg(target_os = "android")'.dependencies.ndk-context]
+version = "0.1"
+
+[target.'cfg(target_os = "android")'.dependencies.num-derive]
+version = "0.4"
+
+[target.'cfg(target_os = "android")'.dependencies.num-traits]
+version = "0.2"
+
+[target.'cfg(target_os = "macos")'.dependencies.jack]
+version = "0.13.5"
+optional = true
+
+[target.'cfg(target_os = "windows")'.dependencies.asio-sys]
+version = "0.4.0"
+optional = true
+
+[target.'cfg(target_os = "windows")'.dependencies.audio_thread_priority]
+version = "0.35"
+optional = true
+default-features = false
+
+[target.'cfg(target_os = "windows")'.dependencies.jack]
+version = "0.13.5"
+optional = true
+
+[target.'cfg(target_os = "windows")'.dependencies.num-traits]
+version = "0.2"
+optional = true
+
+[target.'cfg(target_os = "windows")'.dependencies.windows]
+version = "0.62"
+features = [
+    "Win32_Media",
+    "Win32_Media_Audio",
+    "Win32_Foundation",
+    "Win32_Devices_Properties",
+    "Win32_Media_KernelStreaming",
+    "Win32_System_Com_StructuredStorage",
+    "Win32_System_Threading",
+    "Win32_System_Performance",
+    "Win32_Security",
+    "Win32_System_SystemServices",
+    "Win32_System_Variant",
+    "Win32_Media_Multimedia",
+    "Win32_UI_Shell_PropertiesSystem",
+]
+
+[target.'cfg(target_os = "windows")'.dependencies.windows-core]
+version = "0.62"
+
+[target.'cfg(target_vendor = "apple")'.dependencies.coreaudio-rs]
+version = "0.14.2"
+features = [
+    "core_audio",
+    "audio_toolbox",
+]
+default-features = false
+
+[target.'cfg(target_vendor = "apple")'.dependencies.mach2]
+version = "0.6"
+
+[target.'cfg(target_vendor = "apple")'.dependencies.objc2]
+version = "0.6"
+
+[target.'cfg(target_vendor = "apple")'.dependencies.objc2-audio-toolbox]
+version = "0.3"
+features = [
+    "std",
+    "AUComponent",
+    "AudioUnitProperties",
+]
+default-features = false
+
+[target.'cfg(target_vendor = "apple")'.dependencies.objc2-core-audio]
+version = "0.3"
+features = [
+    "std",
+    "AudioHardware",
+    "AudioHardwareDeprecated",
+    "objc2",
+    "objc2-foundation",
+]
+default-features = false
+
+[target.'cfg(target_vendor = "apple")'.dependencies.objc2-core-audio-types]
+version = "0.3"
+features = [
+    "std",
+    "CoreAudioBaseTypes",
+]
+default-features = false
+
+[target.'cfg(target_vendor = "apple")'.dependencies.objc2-core-foundation]
+version = "0.3.1"
+
+[target.'cfg(target_vendor = "apple")'.dependencies.objc2-foundation]
+version = "0.3"
+features = [
+    "std",
+    "NSArray",
+    "NSString",
+    "NSValue",
+]
+default-features = false