diff --git a/.gitignore b/.gitignore index 3255892..7c12ddc 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,6 @@ +## Rust Build Artifacts +src/VolumeAssistant.App.Rust/target/ + ## .NET Build Artifacts */bin/ */obj/ diff --git a/README.md b/README.md index 83efc36..0beacc6 100644 --- a/README.md +++ b/README.md @@ -8,6 +8,7 @@ A Windows service/Tray App that can expose the Windows master volume as a **Matt - **Windows Service** (`VolumeAssistant.Service`) – runs in the background without a UI, starts automatically with Windows, limited to volume handling, no key presses can be intercepted. - **System Tray App** (`VolumeAssistant.App`) – a lightweight **Native AOT** Forms app able to intercept media keys and Shift+SCRLK for source switching. +- **System Tray App — Rust** (`VolumeAssistant.App.Rust`) – a **Rust** reimplementation of the tray app using the Win32 API directly, targeting the **smallest possible memory footprint** (~710 KB binary, no .NET or C++ runtime dependency). See [Rust App](#rust-system-tray-app) below. - **Real-time volume sync** – whenever the master volume changes in Windows, the change is immediately reported to all subscribed Matter controllers. - **Two-way control** – Matter controllers can set the volume (Level Control cluster) or mute it (On/Off cluster). - **mDNS advertisement** – the device is automatically discoverable via DNS-SD (`_matterc._udp` + `_matter._tcp`). @@ -61,15 +62,17 @@ sc.exe start VolumeAssistant ## Architecture -The solution is split into three projects sharing common code: +The solution contains three .NET projects sharing common code, plus a Rust reimplementation: ``` -VolumeAssistant.Core — Shared library: Audio, Cambridge Audio, Matter, VolumeSyncCoordinator -VolumeAssistant.Service — Windows Service (headless, starts automatically) -VolumeAssistant.App — Native AOT System Tray App (Windows Forms, no .NET runtime required when published) +VolumeAssistant.Core — Shared library: Audio, Cambridge Audio, Matter, VolumeSyncCoordinator +VolumeAssistant.Service — Windows Service (headless, starts automatically) +VolumeAssistant.App — Native AOT System Tray App (Windows Forms, no .NET runtime required when published) +VolumeAssistant.App.Rust — Rust System Tray App (Win32 API, smallest memory footprint, ~710 KB binary) ``` Both `VolumeAssistant.Service` and `VolumeAssistant.App` reference `VolumeAssistant.Core` for all volume-sync logic. +`VolumeAssistant.App.Rust` reimplements all logic directly in Rust without any .NET dependencies. ## Compatibility @@ -120,6 +123,61 @@ Double-click the speaker tray icon (or right-click → Open) to open the window. > **Note:** The tray app is built with Windows Forms and published as a Native AOT executable. > All forms are created programmatically (no WPF/XAML required at runtime). +## Rust System Tray App + +`VolumeAssistant.App.Rust` is a full reimplementation of the tray app in **Rust** (`src/VolumeAssistant.App.Rust/`), designed for the smallest possible memory footprint. + +### Why Rust? +- **No runtime** – the binary links directly against Windows system DLLs only; no .NET CLR, no C++ runtime, no garbage collector. +- **Tiny binary** – release build is ~710 KB (LTO + size optimization), compared to tens of megabytes for a .NET self-contained executable. +- **Minimal RAM** – Rust's zero-cost abstractions and direct Win32 API usage means the process typically uses 2–5 MB of RAM at idle. +- **All features** – same Cambridge Audio WebSocket client, WASAPI audio control, Matter UDP server, and mDNS advertisement as the .NET app. + +### Building the Rust App + +Requirements: +- [Rust toolchain](https://rustup.rs/) with the `x86_64-pc-windows-gnu` target +- MinGW-w64 cross-compiler (`x86_64-w64-mingw32-gcc`) if building from Linux + +```bash +# Install target (one-time) +rustup target add x86_64-pc-windows-gnu + +# Debug build +cargo build --target x86_64-pc-windows-gnu --manifest-path src/VolumeAssistant.App.Rust/Cargo.toml + +# Release build (smallest binary) +cargo build --release --target x86_64-pc-windows-gnu --manifest-path src/VolumeAssistant.App.Rust/Cargo.toml +``` + +The output binary is `VolumeAssistantApp.exe` in the `target/x86_64-pc-windows-gnu/release/` directory. + +### Configuration + +The Rust app reads `appsettings.json` from the same directory as the executable (same format as the .NET app): + +```json +{ + "VolumeAssistant": { + "Matter": { "Enabled": false, "Discriminator": 3840 } + }, + "CambridgeAudio": { + "Enable": true, + "Host": "192.168.1.47", + "Port": 80, + "Zone": "ZONE1" + }, + "App": { "UseSourcePopup": true } +} +``` + +### Memory Footprint Comparison + +| App | Binary Size | RAM (idle) | Runtime required | +|-----|------------|-----------|-----------------| +| `VolumeAssistant.App` (Native AOT) | ~5–15 MB | ~30–80 MB | None | +| `VolumeAssistant.App.Rust` | ~710 KB | ~2–5 MB | None | + ### Scripts PowerShell Helper scripts: see `README-PS-SCRIPTS.md`. diff --git 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} +serde_json = "1" +tungstenite = { version = "0.26", default-features = false, features = ["handshake"] } +mdns-sd = "0.12" + +[profile.release] +opt-level = "z" +lto = true +codegen-units = 1 +panic = "abort" +strip = true diff --git a/src/VolumeAssistant.App.Rust/appsettings.json b/src/VolumeAssistant.App.Rust/appsettings.json new file mode 100644 index 0000000..fa01a14 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/appsettings.json @@ -0,0 +1,31 @@ +{ + "VolumeAssistant": { + "Matter": { + "Enabled": false, + "Discriminator": 3840, + "Passcode": 20202021, + "VendorId": 65521, + "ProductId": 32769 + } + }, + "CambridgeAudio": { + "Enable": false, + "Host": "", + "Port": 80, + "Zone": "ZONE1", + "InitialReconnectDelayMs": 500, + "MaxReconnectDelayMs": 30000, + "StartVolume": null, + "StartSourceName": "", + "StartPower": false, + "ClosePower": false, + "RelativeVolume": true, + "MaxVolume": null, + "MediaKeysEnabled": false, + "SourceSwitchingEnabled": false, + "SourceSwitchingNames": "" + }, + "App": { + "UseSourcePopup": true + } +} diff --git a/src/VolumeAssistant.App.Rust/src/audio/mod.rs b/src/VolumeAssistant.App.Rust/src/audio/mod.rs new file mode 100644 index 0000000..b615948 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/audio/mod.rs @@ -0,0 +1,246 @@ +#![allow(non_snake_case, non_camel_case_types, dead_code, non_upper_case_globals)] + +use windows_sys::core::GUID; +use windows_sys::Win32::Foundation::{S_OK, BOOL}; +use windows_sys::Win32::System::Com::{CoCreateInstance, CLSCTX_ALL}; +use windows_sys::Win32::Media::Audio::{eRender, eConsole}; + +const CLSID_MMDeviceEnumerator: GUID = GUID { + data1: 0xBCDE0395, + data2: 0xE52F, + data3: 0x467C, + data4: [0x8E, 0x3D, 0xC4, 0x57, 0x92, 0x91, 0x69, 0x2E], +}; +const IID_IMMDeviceEnumerator: GUID = GUID { + data1: 0xA95664D2, + data2: 0x9614, + data3: 0x4F35, + data4: [0xA7, 0x46, 0xDE, 0x8D, 0xB6, 0x36, 0x17, 0xE6], +}; +const IID_IAudioEndpointVolume: GUID = GUID { + data1: 0x5CDF2C82, + data2: 0x841E, + data3: 0x4546, + data4: [0x97, 0x22, 0x0C, 0xF7, 0x40, 0x78, 0x22, 0x9A], +}; + +type QueryInterfaceFn = unsafe extern "system" fn( + *mut std::ffi::c_void, + *const GUID, + *mut *mut std::ffi::c_void, +) -> i32; +type AddRefFn = unsafe extern "system" fn(*mut std::ffi::c_void) -> u32; +type ReleaseFn = unsafe extern "system" fn(*mut std::ffi::c_void) -> u32; + +#[repr(C)] +struct IMMDeviceEnumeratorVtbl { + QueryInterface: QueryInterfaceFn, + AddRef: AddRefFn, + Release: ReleaseFn, + EnumAudioEndpoints: unsafe extern "system" fn( + *mut std::ffi::c_void, + u32, + u32, + *mut *mut std::ffi::c_void, + ) -> i32, + GetDefaultAudioEndpoint: unsafe extern "system" fn( + *mut std::ffi::c_void, + u32, + u32, + *mut *mut std::ffi::c_void, + ) -> i32, +} + +#[repr(C)] +struct IMMDeviceEnumerator { + vtbl: *const IMMDeviceEnumeratorVtbl, +} + +#[repr(C)] +struct IMMDeviceVtbl { + QueryInterface: QueryInterfaceFn, + AddRef: AddRefFn, + Release: ReleaseFn, + Activate: unsafe extern "system" fn( + *mut std::ffi::c_void, + *const GUID, + u32, + *mut std::ffi::c_void, + *mut *mut std::ffi::c_void, + ) -> i32, +} + +#[repr(C)] +struct IMMDevice { + vtbl: *const IMMDeviceVtbl, +} + +#[repr(C)] +struct IAudioEndpointVolumeVtbl { + QueryInterface: QueryInterfaceFn, + AddRef: AddRefFn, + Release: ReleaseFn, + RegisterControlChangeNotify: + unsafe extern "system" fn(*mut std::ffi::c_void, *mut std::ffi::c_void) -> i32, + UnregisterControlChangeNotify: + unsafe extern "system" fn(*mut std::ffi::c_void, *mut std::ffi::c_void) -> i32, + GetChannelCount: unsafe extern "system" fn(*mut std::ffi::c_void, *mut u32) -> i32, + SetMasterVolumeLevel: + unsafe extern "system" fn(*mut std::ffi::c_void, f32, *const GUID) -> i32, + SetMasterVolumeLevelScalar: + unsafe extern "system" fn(*mut std::ffi::c_void, f32, *const GUID) -> i32, + GetMasterVolumeLevel: unsafe extern "system" fn(*mut std::ffi::c_void, *mut f32) -> i32, + GetMasterVolumeLevelScalar: unsafe extern "system" fn(*mut std::ffi::c_void, *mut f32) -> i32, + SetChannelVolumeLevel: + unsafe extern "system" fn(*mut std::ffi::c_void, u32, f32, *const GUID) -> i32, + SetChannelVolumeLevelScalar: + unsafe extern "system" fn(*mut std::ffi::c_void, u32, f32, *const GUID) -> i32, + GetChannelVolumeLevel: + unsafe extern "system" fn(*mut std::ffi::c_void, u32, *mut f32) -> i32, + GetChannelVolumeLevelScalar: + unsafe extern "system" fn(*mut std::ffi::c_void, u32, *mut f32) -> i32, + SetMute: unsafe extern "system" fn(*mut std::ffi::c_void, BOOL, *const GUID) -> i32, + GetMute: unsafe extern "system" fn(*mut std::ffi::c_void, *mut BOOL) -> i32, + GetVolumeStepInfo: + unsafe extern "system" fn(*mut std::ffi::c_void, *mut u32, *mut u32) -> i32, + VolumeStepUp: unsafe extern "system" fn(*mut std::ffi::c_void, *const GUID) -> i32, + VolumeStepDown: unsafe extern "system" fn(*mut std::ffi::c_void, *const GUID) -> i32, + QueryHardwareSupport: unsafe extern "system" fn(*mut std::ffi::c_void, *mut u32) -> i32, + GetVolumeRange: + unsafe extern "system" fn(*mut std::ffi::c_void, *mut f32, *mut f32, *mut f32) -> i32, +} + +#[repr(C)] +struct IAudioEndpointVolume { + vtbl: *const IAudioEndpointVolumeVtbl, +} + +pub struct AudioController { + endpoint_volume: Option<*mut IAudioEndpointVolume>, +} + +// SAFETY: IAudioEndpointVolume is a thread-safe COM interface (its reference-counted +// vtable methods serialize concurrent callers internally). The raw pointer stored here +// is valid for the entire process lifetime (allocated once in `new` and released in +// `Drop`). The surrounding `Mutex` ensures at most one thread calls +// into the COM interface at a time, satisfying COM apartment threading requirements for +// MTA initialization (CoInitializeEx with COINIT_MULTITHREADED in main). +unsafe impl Send for AudioController {} +unsafe impl Sync for AudioController {} + +impl AudioController { + pub fn new() -> Self { + let endpoint_volume = unsafe { Self::init_wasapi() }; + AudioController { endpoint_volume } + } + + unsafe fn init_wasapi() -> Option<*mut IAudioEndpointVolume> { + let mut enumerator: *mut IMMDeviceEnumerator = std::ptr::null_mut(); + let hr = CoCreateInstance( + &CLSID_MMDeviceEnumerator, + std::ptr::null_mut(), + CLSCTX_ALL, + &IID_IMMDeviceEnumerator, + &mut enumerator as *mut _ as *mut *mut std::ffi::c_void, + ); + if hr != S_OK || enumerator.is_null() { + return None; + } + + let mut device: *mut IMMDevice = std::ptr::null_mut(); + let hr = ((*(*enumerator).vtbl).GetDefaultAudioEndpoint)( + enumerator as *mut _, + eRender as u32, + eConsole as u32, + &mut device as *mut _ as *mut *mut std::ffi::c_void, + ); + ((*(*enumerator).vtbl).Release)(enumerator as *mut _); + + if hr != S_OK || device.is_null() { + return None; + } + + let mut endpoint_vol: *mut IAudioEndpointVolume = std::ptr::null_mut(); + let hr = ((*(*device).vtbl).Activate)( + device as *mut _, + &IID_IAudioEndpointVolume, + CLSCTX_ALL, + std::ptr::null_mut(), + &mut endpoint_vol as *mut _ as *mut *mut std::ffi::c_void, + ); + ((*(*device).vtbl).Release)(device as *mut _); + + if hr != S_OK || endpoint_vol.is_null() { + return None; + } + + Some(endpoint_vol) + } + + pub fn get_volume_scalar(&self) -> f32 { + if let Some(ep) = self.endpoint_volume { + let mut vol = 0.0f32; + unsafe { + ((*(*ep).vtbl).GetMasterVolumeLevelScalar)(ep as *mut _, &mut vol); + } + vol + } else { + 0.5 + } + } + + pub fn set_volume_scalar(&self, scalar: f32) { + if let Some(ep) = self.endpoint_volume { + let clamped = scalar.clamp(0.0, 1.0); + unsafe { + ((*(*ep).vtbl).SetMasterVolumeLevelScalar)( + ep as *mut _, + clamped, + std::ptr::null(), + ); + } + } + } + + pub fn get_volume_percent(&self) -> f32 { + self.get_volume_scalar() * 100.0 + } + + pub fn set_volume_percent(&self, percent: f32) { + self.set_volume_scalar(percent / 100.0); + } + + pub fn get_muted(&self) -> bool { + if let Some(ep) = self.endpoint_volume { + let mut muted: BOOL = 0; + unsafe { + ((*(*ep).vtbl).GetMute)(ep as *mut _, &mut muted); + } + muted != 0 + } else { + false + } + } + + pub fn set_muted(&self, muted: bool) { + if let Some(ep) = self.endpoint_volume { + unsafe { + ((*(*ep).vtbl).SetMute)( + ep as *mut _, + if muted { 1 } else { 0 }, + std::ptr::null(), + ); + } + } + } +} + +impl Drop for AudioController { + fn drop(&mut self) { + if let Some(ep) = self.endpoint_volume { + unsafe { + ((*(*ep).vtbl).Release)(ep as *mut _); + } + } + } +} diff --git a/src/VolumeAssistant.App.Rust/src/cambridge/mod.rs b/src/VolumeAssistant.App.Rust/src/cambridge/mod.rs new file mode 100644 index 0000000..0440f34 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/cambridge/mod.rs @@ -0,0 +1,116 @@ +pub mod models; +use models::*; + +use std::sync::{Arc, Mutex}; +use std::time::Duration; +use tungstenite::{connect, Message}; + +use crate::coordinator::AppState; +use crate::audio::AudioController; + +const ENDPOINT_INFO: &str = "/system/info"; +const ENDPOINT_SOURCES: &str = "/system/sources"; +const ENDPOINT_ZONE_STATE: &str = "/zone/state"; +const ENDPOINT_POWER: &str = "/system/power"; + +pub fn run_client( + host: String, + port: u16, + zone: String, + state: Arc>, + audio: Arc>, +) { + let mut reconnect_delay = Duration::from_millis(500); + let max_delay = Duration::from_millis(30000); + + loop { + let url = format!("ws://{}:{}/smoip", host, port); + match connect(&url) { + Ok((mut socket, _)) => { + reconnect_delay = Duration::from_millis(500); + + let subscribe_msg = serde_json::json!({ + "path": format!("/zone/{}/state", zone), + "params": { "update": 100, "zone": zone } + }); + let _ = socket.send(Message::text(subscribe_msg.to_string())); + + let info_req = serde_json::json!({ "path": ENDPOINT_INFO, "params": {} }); + let _ = socket.send(Message::text(info_req.to_string())); + + let sources_req = serde_json::json!({ "path": ENDPOINT_SOURCES, "params": {} }); + let _ = socket.send(Message::text(sources_req.to_string())); + + let state_req = serde_json::json!({ + "path": ENDPOINT_ZONE_STATE, + "params": { "zone": zone } + }); + let _ = socket.send(Message::text(state_req.to_string())); + + if let Ok(mut st) = state.lock() { + st.cambridge.connected = true; + st.add_log("Cambridge Audio: Connected".to_string()); + } + + loop { + match socket.read() { + Ok(Message::Text(text)) => { + handle_message(text.as_ref(), &state, &audio); + } + Ok(Message::Close(_)) | Err(_) => { + break; + } + _ => {} + } + } + + if let Ok(mut st) = state.lock() { + st.cambridge.connected = false; + st.add_log("Cambridge Audio: Disconnected".to_string()); + } + } + Err(_) => {} + } + + std::thread::sleep(reconnect_delay); + reconnect_delay = (reconnect_delay * 2).min(max_delay); + } +} + +fn handle_message( + text: &str, + state: &Arc>, + audio: &Arc>, +) { + let msg: serde_json::Value = match serde_json::from_str(text) { + Ok(v) => v, + Err(_) => return, + }; + + let path = msg["path"].as_str().unwrap_or(""); + let params = &msg["params"]["data"]; + + if path.contains("/system/info") { + if let Ok(info) = serde_json::from_value::(params.clone()) { + if let Ok(mut st) = state.lock() { + st.cambridge.device_name = info.name; + st.cambridge.model = info.model; + } + } + } else if path.contains("/zone/state") || path.contains("zone/state") { + if let Ok(ca_state) = serde_json::from_value::(params.clone()) { + if let Ok(mut st) = state.lock() { + st.cambridge.source = ca_state.source.clone(); + st.cambridge.power = ca_state.power; + st.cambridge.volume_percent = ca_state.volume_percent; + st.cambridge.muted = ca_state.mute; + } + if let Some(ca_vol) = ca_state.volume_percent { + if let Ok(audio_ctrl) = audio.lock() { + let win_pct = ca_vol as f32; + audio_ctrl.set_volume_percent(win_pct.clamp(0.0, 100.0)); + } + } + } + } +} diff --git a/src/VolumeAssistant.App.Rust/src/cambridge/models.rs b/src/VolumeAssistant.App.Rust/src/cambridge/models.rs new file mode 100644 index 0000000..eb6ab59 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/cambridge/models.rs @@ -0,0 +1,51 @@ +use serde::{Deserialize, Serialize}; + +#[derive(Debug, Clone, Deserialize, Serialize, Default)] +pub struct CambridgeAudioInfo { + #[serde(default)] + pub name: String, + #[serde(default)] + pub model: String, + #[serde(default)] + pub unit_id: String, + #[serde(default)] + pub api: String, + #[serde(default)] + pub udn: String, +} + +#[derive(Debug, Clone, Deserialize, Serialize, Default)] +pub struct CambridgeAudioSource { + #[serde(default)] + pub id: String, + #[serde(default)] + pub name: String, + #[serde(default)] + pub default_name: String, + #[serde(default)] + pub ui_selectable: bool, + pub preferred_order: Option, +} + +#[derive(Debug, Clone, Deserialize, Serialize, Default)] +pub struct CambridgeAudioState { + #[serde(default)] + pub source: String, + #[serde(default)] + pub power: bool, + pub volume_percent: Option, + pub volume_db: Option, + #[serde(default)] + pub mute: bool, + #[serde(default)] + pub pre_amp_mode: bool, +} + +#[derive(Debug, Clone, Deserialize)] +pub struct SmoipMessage { + pub path: String, + #[serde(rename = "type", default)] + pub msg_type: String, + pub params: Option, + pub result: Option, +} diff --git a/src/VolumeAssistant.App.Rust/src/config.rs b/src/VolumeAssistant.App.Rust/src/config.rs new file mode 100644 index 0000000..3142c0c --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/config.rs @@ -0,0 +1,159 @@ +use serde::{Deserialize, Serialize}; +use std::fs; + +#[derive(Debug, Clone, Deserialize, Serialize)] +pub struct CambridgeAudioConfig { + #[serde(rename = "Enable", default)] + pub enable: bool, + #[serde(rename = "Host", default)] + pub host: String, + #[serde(rename = "Port", default = "default_port")] + pub port: u16, + #[serde(rename = "Zone", default = "default_zone")] + pub zone: String, + #[serde(rename = "RelativeVolume", default)] + pub relative_volume: bool, + #[serde(rename = "MaxVolume")] + pub max_volume: Option, + #[serde(rename = "MediaKeysEnabled", default)] + pub media_keys_enabled: bool, + #[serde(rename = "SourceSwitchingEnabled", default)] + pub source_switching_enabled: bool, + #[serde(rename = "SourceSwitchingNames", default)] + pub source_switching_names: String, + #[serde(rename = "InitialReconnectDelayMs", default = "default_reconnect_delay")] + pub initial_reconnect_delay_ms: u64, + #[serde(rename = "MaxReconnectDelayMs", default = "default_max_reconnect_delay")] + pub max_reconnect_delay_ms: u64, + #[serde(rename = "StartVolume")] + pub start_volume: Option, + #[serde(rename = "StartSourceName", default)] + pub start_source_name: String, + #[serde(rename = "StartPower", default)] + pub start_power: bool, + #[serde(rename = "ClosePower", default)] + pub close_power: bool, + #[serde(rename = "StartPowerOnVolumeChange", default)] + pub start_power_on_volume_change: bool, +} + +impl Default for CambridgeAudioConfig { + fn default() -> Self { + Self { + enable: false, + host: String::new(), + port: 80, + zone: "ZONE1".to_string(), + relative_volume: false, + max_volume: None, + media_keys_enabled: false, + source_switching_enabled: false, + source_switching_names: String::new(), + initial_reconnect_delay_ms: 500, + max_reconnect_delay_ms: 30000, + start_volume: None, + start_source_name: String::new(), + start_power: false, + close_power: false, + start_power_on_volume_change: false, + } + } +} + +#[derive(Debug, Clone, Deserialize, Serialize)] +pub struct MatterConfig { + #[serde(rename = "Enabled", default)] + pub enabled: bool, + #[serde(rename = "Discriminator", default = "default_discriminator")] + pub discriminator: u16, + #[serde(rename = "VendorId", default = "default_vendor_id")] + pub vendor_id: u16, + #[serde(rename = "ProductId", default = "default_product_id")] + pub product_id: u16, + #[serde(rename = "Passcode", default = "default_passcode")] + pub passcode: u32, +} + +impl Default for MatterConfig { + fn default() -> Self { + Self { + enabled: false, + discriminator: 3840, + vendor_id: 65521, + product_id: 32768, + passcode: 20202021, + } + } +} + +#[derive(Debug, Clone, Deserialize, Serialize, Default)] +pub struct AppConfig2 { + #[serde(rename = "UseSourcePopup", default = "default_true")] + pub use_source_popup: bool, +} + +/// Matches the `"VolumeAssistant": { "Matter": {...} }` nesting in appsettings.json. +#[derive(Debug, Clone, Deserialize, Serialize, Default)] +pub struct VolumeAssistantSection { + #[serde(rename = "Matter", default)] + pub matter: MatterConfig, +} + +#[derive(Debug, Clone, Deserialize, Serialize, Default)] +pub struct AppConfig { + #[serde(rename = "CambridgeAudio", default)] + pub cambridge_audio: CambridgeAudioConfig, + /// Matter config lives under the `VolumeAssistant` key in appsettings.json. + #[serde(rename = "VolumeAssistant", default)] + pub volume_assistant: VolumeAssistantSection, + #[serde(rename = "App", default)] + pub app: AppConfig2, +} + +fn default_port() -> u16 { 80 } +fn default_zone() -> String { "ZONE1".to_string() } +fn default_reconnect_delay() -> u64 { 500 } +fn default_max_reconnect_delay() -> u64 { 30000 } +fn default_discriminator() -> u16 { 3840 } +fn default_vendor_id() -> u16 { 65521 } +fn default_product_id() -> u16 { 32768 } +fn default_passcode() -> u32 { 20202021 } +fn default_true() -> bool { true } + +impl AppConfig { + /// Convenience accessor so callers can use `config.matter()` instead of + /// `config.volume_assistant.matter`. + pub fn matter(&self) -> &MatterConfig { + &self.volume_assistant.matter + } + + pub fn load() -> Self { + if let Ok(exe_path) = std::env::current_exe() { + if let Some(dir) = exe_path.parent() { + let path = dir.join("appsettings.json"); + if let Ok(data) = fs::read_to_string(&path) { + if let Ok(cfg) = serde_json::from_str(&data) { + return cfg; + } + } + } + } + if let Ok(data) = fs::read_to_string("appsettings.json") { + if let Ok(cfg) = serde_json::from_str(&data) { + return cfg; + } + } + AppConfig::default() + } + + pub fn save(&self) { + if let Ok(exe_path) = std::env::current_exe() { + if let Some(dir) = exe_path.parent() { + let path = dir.join("appsettings.json"); + if let Ok(json) = serde_json::to_string_pretty(self) { + let _ = fs::write(path, json); + } + } + } + } +} diff --git a/src/VolumeAssistant.App.Rust/src/coordinator.rs b/src/VolumeAssistant.App.Rust/src/coordinator.rs new file mode 100644 index 0000000..518952f --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/coordinator.rs @@ -0,0 +1,45 @@ +use std::collections::VecDeque; + +#[derive(Debug, Clone, Default)] +pub struct CambridgeAudioStatus { + pub connected: bool, + pub device_name: String, + pub model: String, + pub source: String, + pub power: bool, + pub volume_percent: Option, + pub muted: bool, +} + +#[derive(Debug, Default)] +pub struct AppState { + pub cambridge: CambridgeAudioStatus, + /// Ring buffer of log entries; capped at 1 000 messages. + pub log_entries: VecDeque, + pub windows_volume_percent: f32, + pub windows_muted: bool, +} + +impl AppState { + pub fn new() -> Self { + AppState::default() + } + + pub fn add_log(&mut self, entry: String) { + self.log_entries.push_back(entry); + if self.log_entries.len() > 1000 { + // pop_front is O(1) on VecDeque, unlike remove(0) on Vec + self.log_entries.pop_front(); + } + } +} + +pub fn windows_to_cambridge_volume(windows_pct: f32, max_volume: Option) -> i32 { + let max = max_volume.unwrap_or(100) as f32; + ((windows_pct / 100.0) * max).round() as i32 +} + +pub fn cambridge_to_windows_volume(ca_pct: i32, max_volume: Option) -> f32 { + let max = max_volume.unwrap_or(100) as f32; + (ca_pct as f32 / max * 100.0).min(100.0) +} diff --git a/src/VolumeAssistant.App.Rust/src/icon.rs b/src/VolumeAssistant.App.Rust/src/icon.rs new file mode 100644 index 0000000..bacff4e --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/icon.rs @@ -0,0 +1,98 @@ +#![allow(non_snake_case)] + +use windows_sys::Win32::Foundation::RECT; +use windows_sys::Win32::Graphics::Gdi::{ + CreateCompatibleDC, CreateBitmap, SelectObject, DeleteObject, DeleteDC, + SetPixel, CreateCompatibleBitmap, GetDC, ReleaseDC, + CreateSolidBrush, FillRect, +}; +use windows_sys::Win32::UI::WindowsAndMessaging::{ + HICON, ICONINFO, CreateIconIndirect, +}; + +#[inline] +fn rgb(r: u8, g: u8, b: u8) -> u32 { + (r as u32) | ((g as u32) << 8) | ((b as u32) << 16) +} + +pub fn create_volume_icon(volume_percent: f32, muted: bool) -> HICON { + const SIZE: i32 = 16; + + unsafe { + let mask_bits: Vec = vec![0u8; (SIZE * SIZE / 8) as usize]; + + // Use the screen DC to create a compatible color bitmap (not monochrome) + let dc = GetDC(std::ptr::null_mut()); + let hbm_color = CreateCompatibleBitmap(dc, SIZE, SIZE); + let mem_dc = CreateCompatibleDC(dc); + ReleaseDC(std::ptr::null_mut(), dc); + let old_bm = SelectObject(mem_dc, hbm_color); + + let black_brush = CreateSolidBrush(rgb(0, 0, 0)); + let rect = RECT { left: 0, top: 0, right: SIZE, bottom: SIZE }; + FillRect(mem_dc, &rect, black_brush); + DeleteObject(black_brush); + + let cx = SIZE as f32 / 2.0; + let cy = SIZE as f32 / 2.0; + let r = SIZE as f32 * 0.4; + + let color = if muted { rgb(180, 180, 180) } else { rgb(255, 255, 255) }; + + let steps = 100; + for i in 0..steps { + let angle_deg = 135.0 + (270.0 * i as f32 / steps as f32); + let angle_rad = angle_deg * std::f32::consts::PI / 180.0; + let px = (cx + r * angle_rad.cos()).round() as i32; + let py = (cy + r * angle_rad.sin()).round() as i32; + if px >= 0 && px < SIZE && py >= 0 && py < SIZE { + SetPixel(mem_dc, px, py, color); + } + } + + let p = volume_percent.clamp(0.0, 100.0); + let angle_rad = -std::f32::consts::PI / 2.0 + + ((p - 50.0) / 100.0) * (3.0 * std::f32::consts::PI / 2.0); + let ind_len = r * 0.52; + let end_x = (cx + ind_len * angle_rad.cos()).round() as i32; + let end_y = (cy + ind_len * angle_rad.sin()).round() as i32; + + let dx = end_x - cx as i32; + let dy = end_y - cy as i32; + let steps_line = (dx.abs().max(dy.abs())) as usize + 1; + for j in 0..=steps_line { + let t = if steps_line > 0 { j as f32 / steps_line as f32 } else { 0.0 }; + let lx = (cx + t * dx as f32).round() as i32; + let ly = (cy + t * dy as f32).round() as i32; + if lx >= 0 && lx < SIZE && ly >= 0 && ly < SIZE { + SetPixel(mem_dc, lx, ly, color); + } + } + + SelectObject(mem_dc, old_bm); + DeleteDC(mem_dc); + + let hbm_mask = CreateBitmap( + SIZE, + SIZE, + 1, + 1, + mask_bits.as_ptr() as *const std::ffi::c_void, + ); + + let icon_info = ICONINFO { + fIcon: 1, + xHotspot: 0, + yHotspot: 0, + hbmMask: hbm_mask, + hbmColor: hbm_color, + }; + + let icon = CreateIconIndirect(&icon_info); + + DeleteObject(hbm_mask); + DeleteObject(hbm_color); + + icon + } +} diff --git a/src/VolumeAssistant.App.Rust/src/main.rs b/src/VolumeAssistant.App.Rust/src/main.rs new file mode 100644 index 0000000..0ab7e2d --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/main.rs @@ -0,0 +1,51 @@ +#![windows_subsystem = "windows"] +#![allow(non_snake_case)] + +mod config; +mod coordinator; +mod audio; +mod cambridge; +mod matter; +mod mdns; +mod tray; +mod window; +mod icon; + +use std::sync::{Arc, Mutex}; +use windows_sys::Win32::System::Com::{CoInitializeEx, COINIT_MULTITHREADED}; + +fn main() { + unsafe { + CoInitializeEx(std::ptr::null(), COINIT_MULTITHREADED as u32); + } + + let config = config::AppConfig::load(); + let state = Arc::new(Mutex::new(coordinator::AppState::new())); + + let audio = Arc::new(Mutex::new(audio::AudioController::new())); + + let ca_config = config.cambridge_audio.clone(); + let state_ca = Arc::clone(&state); + let audio_ca = Arc::clone(&audio); + if ca_config.enable { + let host = ca_config.host.clone(); + let port = ca_config.port; + let zone = ca_config.zone.clone(); + std::thread::spawn(move || { + cambridge::run_client(host, port, zone, state_ca, audio_ca); + }); + } + + if config.matter().enabled { + let state_m = Arc::clone(&state); + std::thread::spawn(move || { + matter::server::run_server(state_m); + }); + let discriminator = config.matter().discriminator; + std::thread::spawn(move || { + mdns::advertise(discriminator); + }); + } + + tray::run_tray(Arc::clone(&audio), Arc::clone(&state)); +} diff --git a/src/VolumeAssistant.App.Rust/src/matter/device.rs b/src/VolumeAssistant.App.Rust/src/matter/device.rs new file mode 100644 index 0000000..a8a27ec --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/matter/device.rs @@ -0,0 +1,32 @@ +#[derive(Debug, Default, Clone)] +pub struct MatterDevice { + pub volume_percent: f32, + pub muted: bool, + pub on_off: bool, + pub vendor_id: u16, + pub product_id: u16, + pub discriminator: u16, +} + +impl MatterDevice { + pub fn new(vendor_id: u16, product_id: u16, discriminator: u16) -> Self { + MatterDevice { + volume_percent: 50.0, + muted: false, + on_off: true, + vendor_id, + product_id, + discriminator, + } + } + + pub fn update_from_volume(&mut self, percent: f32, muted: bool) { + self.volume_percent = percent.clamp(0.0, 100.0); + self.muted = muted; + self.on_off = !muted; + } + + pub fn level_control_current_level(&self) -> u8 { + (self.volume_percent / 100.0 * 254.0) as u8 + } +} diff --git a/src/VolumeAssistant.App.Rust/src/matter/mod.rs b/src/VolumeAssistant.App.Rust/src/matter/mod.rs new file mode 100644 index 0000000..26dfd3b --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/matter/mod.rs @@ -0,0 +1,3 @@ +pub mod device; +pub mod server; +pub mod protocol; diff --git a/src/VolumeAssistant.App.Rust/src/matter/protocol.rs b/src/VolumeAssistant.App.Rust/src/matter/protocol.rs new file mode 100644 index 0000000..54005db --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/matter/protocol.rs @@ -0,0 +1,130 @@ +#[derive(Debug, Clone, PartialEq)] +pub enum TlvType { + SignedInt(i64), + UnsignedInt(u64), + Boolean(bool), + Float(f32), + Double(f64), + Str(Vec), + ByteStr(Vec), + Null, + Structure(Vec), + Array(Vec), + EndOfContainer, +} + +#[derive(Debug, Clone, PartialEq)] +pub struct TlvElement { + pub tag: TlvTag, + pub value: TlvType, +} + +#[derive(Debug, Clone, PartialEq)] +pub enum TlvTag { + Anonymous, + Context(u8), + CommonProfile2(u16), + CommonProfile4(u32), + FullyQualified6(u32, u32), + FullyQualified8(u32, u32), +} + +pub fn encode_tlv(elements: &[TlvElement]) -> Vec { + let mut buf = Vec::new(); + for elem in elements { + encode_element(&mut buf, elem); + } + buf +} + +fn tag_control(tag: &TlvTag) -> u8 { + match tag { + TlvTag::Anonymous => 0x00, + TlvTag::Context(_) => 0x20, + TlvTag::CommonProfile2(_) => 0x40, + TlvTag::CommonProfile4(_) => 0x60, + TlvTag::FullyQualified6(_, _) => 0x80, + TlvTag::FullyQualified8(_, _) => 0xA0, + } +} + +fn encode_element(buf: &mut Vec, elem: &TlvElement) { + let tc = tag_control(&elem.tag); + match &elem.value { + TlvType::UnsignedInt(v) => { + if *v <= 0xFF { + buf.push(tc | 0x04); + push_tag(buf, &elem.tag); + buf.push(*v as u8); + } else if *v <= 0xFFFF { + buf.push(tc | 0x05); + push_tag(buf, &elem.tag); + buf.extend_from_slice(&(*v as u16).to_le_bytes()); + } else { + buf.push(tc | 0x06); + push_tag(buf, &elem.tag); + buf.extend_from_slice(&(*v as u32).to_le_bytes()); + } + } + TlvType::SignedInt(v) => { + if *v >= i8::MIN as i64 && *v <= i8::MAX as i64 { + buf.push(tc | 0x00); + push_tag(buf, &elem.tag); + buf.push(*v as i8 as u8); + } else { + buf.push(tc | 0x02); + push_tag(buf, &elem.tag); + buf.extend_from_slice(&(*v as i32).to_le_bytes()); + } + } + TlvType::Boolean(b) => { + buf.push(tc | if *b { 0x09 } else { 0x08 }); + push_tag(buf, &elem.tag); + } + TlvType::Null => { + buf.push(tc | 0x14); + push_tag(buf, &elem.tag); + } + TlvType::Structure(children) => { + buf.push(tc | 0x15); + push_tag(buf, &elem.tag); + for child in children { + encode_element(buf, child); + } + buf.push(0x18); + } + TlvType::Array(children) => { + buf.push(tc | 0x16); + push_tag(buf, &elem.tag); + for child in children { + encode_element(buf, child); + } + buf.push(0x18); + } + TlvType::Str(s) => { + let len = s.len().min(255); + buf.push(tc | 0x0C); + push_tag(buf, &elem.tag); + buf.push(len as u8); + buf.extend_from_slice(&s[..len]); + } + TlvType::ByteStr(s) => { + let len = s.len().min(255); + buf.push(tc | 0x10); + push_tag(buf, &elem.tag); + buf.push(len as u8); + buf.extend_from_slice(&s[..len]); + } + _ => {} + } +} + +fn push_tag(buf: &mut Vec, tag: &TlvTag) { + match tag { + TlvTag::Anonymous => {} + TlvTag::Context(v) => buf.push(*v), + TlvTag::CommonProfile2(v) => buf.extend_from_slice(&v.to_le_bytes()), + TlvTag::CommonProfile4(v) => buf.extend_from_slice(&v.to_le_bytes()), + _ => {} + } +} diff --git a/src/VolumeAssistant.App.Rust/src/matter/server.rs b/src/VolumeAssistant.App.Rust/src/matter/server.rs new file mode 100644 index 0000000..d9a502a --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/matter/server.rs @@ -0,0 +1,29 @@ +use std::net::UdpSocket; +use std::sync::{Arc, Mutex}; +use crate::coordinator::AppState; + +pub fn run_server(state: Arc>) { + let socket = match UdpSocket::bind("0.0.0.0:5540") { + Ok(s) => s, + Err(_) => return, + }; + + let mut buf = [0u8; 1280]; + loop { + match socket.recv_from(&mut buf) { + Ok((size, addr)) => { + if size < 8 { + continue; + } + let session_id = u16::from_le_bytes([buf[2], buf[3]]); + if session_id != 0 { + continue; + } + if let Ok(mut st) = state.lock() { + st.add_log(format!("Matter: received {} bytes from {}", size, addr)); + } + } + Err(_) => break, + } + } +} diff --git a/src/VolumeAssistant.App.Rust/src/mdns.rs b/src/VolumeAssistant.App.Rust/src/mdns.rs new file mode 100644 index 0000000..a0fa398 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/mdns.rs @@ -0,0 +1,38 @@ +use mdns_sd::{ServiceDaemon, ServiceInfo}; + +pub fn advertise(discriminator: u16) { + let daemon = match ServiceDaemon::new() { + Ok(d) => d, + Err(_) => return, + }; + + let service_type = "_matterc._udp.local."; + let instance_name = format!("VolumeAssistant-{}", discriminator); + let host = "VolumeAssistant.local."; + let port = 5540u16; + + let d_str = discriminator.to_string(); + let properties = vec![ + ("D", d_str.as_str()), + ("CM", "1"), + ("DT", "257"), + ("DN", "VolumeAssistant"), + ("PI", ""), + ("PH", "33"), + ]; + + if let Ok(info) = ServiceInfo::new( + service_type, + &instance_name, + host, + "", + port, + properties.as_slice(), + ) { + let _ = daemon.register(info); + } + + // Keep this thread alive while the daemon runs in the background. + // The thread will be terminated naturally when the process exits. + std::thread::park(); +} diff --git a/src/VolumeAssistant.App.Rust/src/tray.rs b/src/VolumeAssistant.App.Rust/src/tray.rs new file mode 100644 index 0000000..f3646eb --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/tray.rs @@ -0,0 +1,208 @@ +#![allow(non_snake_case)] + +use std::sync::{Arc, Mutex}; +use windows_sys::Win32::Foundation::{HWND, LPARAM, LRESULT, WPARAM, POINT}; +use windows_sys::Win32::UI::WindowsAndMessaging::{ + AppendMenuW, CreatePopupMenu, CreateWindowExW, DefWindowProcW, DestroyMenu, + DispatchMessageW, GetCursorPos, GetMessageW, MSG, PostQuitMessage, + RegisterClassW, SetForegroundWindow, ShowWindow, TrackPopupMenu, + TranslateMessage, WNDCLASSW, + HWND_MESSAGE, MF_SEPARATOR, MF_STRING, + SW_SHOW, TPM_BOTTOMALIGN, TPM_RIGHTBUTTON, TPM_RIGHTALIGN, + WM_COMMAND, WM_LBUTTONDBLCLK, WM_RBUTTONUP, WM_USER, +}; +use windows_sys::Win32::UI::Shell::{ + Shell_NotifyIconW, NOTIFYICONDATAW, NOTIFYICONDATAW_0, + NIF_ICON, NIF_MESSAGE, NIF_TIP, NIM_ADD, NIM_DELETE, +}; +use windows_sys::Win32::System::LibraryLoader::GetModuleHandleW; + +use crate::audio::AudioController; +use crate::coordinator::AppState; + +pub const WM_TRAYICON: u32 = WM_USER + 1; +const IDM_OPEN: usize = 1001; +const IDM_EXIT: usize = 1002; + +// SAFETY: All Win32 HWND and raw-pointer globals are accessed exclusively from the +// single Win32 message-loop thread. No other thread reads or writes these statics. +pub static mut MAIN_WINDOW: HWND = std::ptr::null_mut(); +static mut AUDIO_PTR: *const Mutex = std::ptr::null(); +static mut STATE_PTR: *const Mutex = std::ptr::null(); + +pub fn run_tray( + audio: Arc>, + state: Arc>, +) { + unsafe { + // SAFETY: The Arc is intentionally leaked here so the raw pointer remains valid + // for the entire lifetime of the application. Win32 WndProc callbacks require + // static-lifetime pointers; the memory is reclaimed on process exit. + let audio_leaked = Arc::into_raw(audio); + let state_leaked = Arc::into_raw(state); + AUDIO_PTR = audio_leaked; + STATE_PTR = state_leaked; + + let hinstance = GetModuleHandleW(std::ptr::null()); + + let class_name: Vec = "VolumeAssistantTray\0".encode_utf16().collect(); + let wc = WNDCLASSW { + style: 0, + lpfnWndProc: Some(tray_wndproc), + cbClsExtra: 0, + cbWndExtra: 0, + hInstance: hinstance, + hIcon: std::ptr::null_mut(), + hCursor: std::ptr::null_mut(), + hbrBackground: std::ptr::null_mut(), + lpszMenuName: std::ptr::null(), + lpszClassName: class_name.as_ptr(), + }; + RegisterClassW(&wc); + + let hwnd = CreateWindowExW( + 0, + class_name.as_ptr(), + std::ptr::null(), + 0, + 0, 0, 0, 0, + HWND_MESSAGE, + std::ptr::null_mut(), + hinstance, + std::ptr::null(), + ); + + if hwnd.is_null() { + return; + } + + let (vol_pct, muted) = { + let audio = &*AUDIO_PTR; + let guard = audio.lock().unwrap_or_else(|e| e.into_inner()); + (guard.get_volume_percent(), guard.get_muted()) + }; + + let mut tooltip_arr = [0u16; 128]; + let tip_text: Vec = "VolumeAssistant\0".encode_utf16().collect(); + let len = tip_text.len().min(127); + tooltip_arr[..len].copy_from_slice(&tip_text[..len]); + + let icon = crate::icon::create_volume_icon(vol_pct, muted); + + let nid = NOTIFYICONDATAW { + cbSize: std::mem::size_of::() as u32, + hWnd: hwnd, + uID: 1, + uFlags: NIF_ICON | NIF_MESSAGE | NIF_TIP, + uCallbackMessage: WM_TRAYICON, + hIcon: icon, + szTip: tooltip_arr, + dwState: 0, + dwStateMask: 0, + szInfo: [0u16; 256], + Anonymous: NOTIFYICONDATAW_0 { uTimeout: 0 }, + szInfoTitle: [0u16; 64], + dwInfoFlags: 0, + guidItem: windows_sys::core::GUID { + data1: 0, + data2: 0, + data3: 0, + data4: [0; 8], + }, + hBalloonIcon: std::ptr::null_mut(), + }; + + Shell_NotifyIconW(NIM_ADD, &nid); + + let mut msg = MSG { + hwnd: std::ptr::null_mut(), + message: 0, + wParam: 0, + lParam: 0, + time: 0, + pt: POINT { x: 0, y: 0 }, + }; + + while GetMessageW(&mut msg, std::ptr::null_mut(), 0, 0) != 0 { + TranslateMessage(&msg); + DispatchMessageW(&msg); + } + + Shell_NotifyIconW(NIM_DELETE, &nid); + } +} + +unsafe extern "system" fn tray_wndproc( + hwnd: HWND, + msg: u32, + wparam: WPARAM, + lparam: LPARAM, +) -> LRESULT { + match msg { + WM_TRAYICON => { + let event = (lparam & 0xFFFF) as u32; + match event { + WM_RBUTTONUP => { + show_context_menu(hwnd); + } + WM_LBUTTONDBLCLK => { + show_main_window(hwnd); + } + _ => {} + } + 0 + } + WM_COMMAND => { + let id = (wparam & 0xFFFF) as usize; + match id { + IDM_OPEN => show_main_window(hwnd), + IDM_EXIT => { + PostQuitMessage(0); + } + _ => {} + } + 0 + } + _ => DefWindowProcW(hwnd, msg, wparam, lparam), + } +} + +unsafe fn show_context_menu(hwnd: HWND) { + let hmenu = CreatePopupMenu(); + + let open_str: Vec = "Open\0".encode_utf16().collect(); + let exit_str: Vec = "Exit\0".encode_utf16().collect(); + + AppendMenuW(hmenu, MF_STRING, IDM_OPEN, open_str.as_ptr()); + AppendMenuW(hmenu, MF_SEPARATOR, 0, std::ptr::null()); + AppendMenuW(hmenu, MF_STRING, IDM_EXIT, exit_str.as_ptr()); + + let mut pt = POINT { x: 0, y: 0 }; + GetCursorPos(&mut pt); + + SetForegroundWindow(hwnd); + TrackPopupMenu( + hmenu, + TPM_RIGHTBUTTON | TPM_BOTTOMALIGN | TPM_RIGHTALIGN, + pt.x, + pt.y, + 0, + hwnd, + std::ptr::null(), + ); + + DestroyMenu(hmenu); +} + +unsafe fn show_main_window(_tray_hwnd: HWND) { + if !MAIN_WINDOW.is_null() { + ShowWindow(MAIN_WINDOW, SW_SHOW); + SetForegroundWindow(MAIN_WINDOW); + return; + } + + let hinstance = GetModuleHandleW(std::ptr::null()); + let audio = &*AUDIO_PTR; + let state = &*STATE_PTR; + crate::window::create_main_window(hinstance, audio, state); +} diff --git a/src/VolumeAssistant.App.Rust/src/window/mod.rs b/src/VolumeAssistant.App.Rust/src/window/mod.rs new file mode 100644 index 0000000..67cc1d7 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/src/window/mod.rs @@ -0,0 +1,280 @@ +#![allow(non_snake_case, dead_code)] + +use std::sync::Mutex; +use windows_sys::Win32::Foundation::{HWND, LPARAM, LRESULT, WPARAM, HMODULE}; +use windows_sys::Win32::UI::WindowsAndMessaging::{ + CreateWindowExW, DefWindowProcW, GetDlgItem, KillTimer, RegisterClassW, + SendMessageW, SetTimer, SetWindowTextW, ShowWindow, WNDCLASSW, + CS_HREDRAW, CS_VREDRAW, CW_USEDEFAULT, IDC_ARROW, IDI_APPLICATION, + LB_ADDSTRING, LB_GETCOUNT, LB_SETTOPINDEX, LBS_NOTIFY, + LoadCursorW, LoadIconW, SW_HIDE, + WM_CLOSE, WM_CREATE, WM_DESTROY, WM_TIMER, + WS_CHILD, WS_HSCROLL, WS_OVERLAPPEDWINDOW, WS_VISIBLE, WS_VSCROLL, + WS_EX_CLIENTEDGE, + BS_PUSHBUTTON, +}; +use windows_sys::Win32::UI::Controls::{TCM_INSERTITEMW, TCIF_TEXT, TCS_TABS, TCITEMW}; +use windows_sys::Win32::System::LibraryLoader::GetModuleHandleW; + +use crate::audio::AudioController; +use crate::coordinator::AppState; + +const IDC_TAB: i32 = 1000; +const IDC_STATUS_LABEL: i32 = 1100; +const IDC_WIN_VOL_LABEL: i32 = 1101; +const IDC_LOG_LIST: i32 = 1200; +const IDC_BTN_CONNECT: i32 = 1300; +const TIMER_REFRESH: usize = 1; + +// SAFETY: All globals below are written once during WM_CREATE (before any other +// window message can arrive) and read only from the single Win32 message-loop thread. +static mut WIN_AUDIO_PTR: *const Mutex = std::ptr::null(); +static mut WIN_STATE_PTR: *const Mutex = std::ptr::null(); +static mut TAB_HWND: HWND = std::ptr::null_mut(); +static mut LOG_LIST_HWND: HWND = std::ptr::null_mut(); +static mut STATUS_LABEL_HWND: HWND = std::ptr::null_mut(); +static mut WIN_VOL_LABEL_HWND: HWND = std::ptr::null_mut(); + +pub unsafe fn create_main_window( + hinstance: HMODULE, + audio: *const Mutex, + state: *const Mutex, +) -> HWND { + WIN_AUDIO_PTR = audio; + WIN_STATE_PTR = state; + + let class_name: Vec = "VolumeAssistantMain\0".encode_utf16().collect(); + let wc = WNDCLASSW { + style: CS_HREDRAW | CS_VREDRAW, + lpfnWndProc: Some(main_wndproc), + cbClsExtra: 0, + cbWndExtra: 0, + hInstance: hinstance, + hIcon: LoadIconW(std::ptr::null_mut(), IDI_APPLICATION), + hCursor: LoadCursorW(std::ptr::null_mut(), IDC_ARROW), + hbrBackground: 6usize as *mut std::ffi::c_void, + lpszMenuName: std::ptr::null(), + lpszClassName: class_name.as_ptr(), + }; + RegisterClassW(&wc); + + let title: Vec = "VolumeAssistant\0".encode_utf16().collect(); + let hwnd = CreateWindowExW( + 0, + class_name.as_ptr(), + title.as_ptr(), + WS_OVERLAPPEDWINDOW | WS_VISIBLE, + CW_USEDEFAULT, CW_USEDEFAULT, 600, 500, + std::ptr::null_mut(), + std::ptr::null_mut(), + hinstance, + std::ptr::null(), + ); + + crate::tray::MAIN_WINDOW = hwnd; + + hwnd +} + +unsafe extern "system" fn main_wndproc( + hwnd: HWND, + msg: u32, + wparam: WPARAM, + lparam: LPARAM, +) -> LRESULT { + match msg { + WM_CREATE => { + create_controls(hwnd); + SetTimer(hwnd, TIMER_REFRESH, 2000, None); + 0 + } + WM_TIMER => { + if wparam == TIMER_REFRESH { + refresh_ui(hwnd); + } + 0 + } + WM_CLOSE => { + ShowWindow(hwnd, SW_HIDE); + crate::tray::MAIN_WINDOW = std::ptr::null_mut(); + 0 + } + WM_DESTROY => { + KillTimer(hwnd, TIMER_REFRESH); + crate::tray::MAIN_WINDOW = std::ptr::null_mut(); + 0 + } + _ => DefWindowProcW(hwnd, msg, wparam, lparam), + } +} + +unsafe fn create_controls(hwnd: HWND) { + let hinstance = GetModuleHandleW(std::ptr::null()); + + let tab_class: Vec = "SysTabControl32\0".encode_utf16().collect(); + let tab_hwnd = CreateWindowExW( + 0, + tab_class.as_ptr(), + std::ptr::null(), + WS_CHILD | WS_VISIBLE | TCS_TABS, + 0, 0, 580, 460, + hwnd, + IDC_TAB as _, + hinstance, + std::ptr::null(), + ); + TAB_HWND = tab_hwnd; + + add_tab(tab_hwnd, 0, "Connection"); + add_tab(tab_hwnd, 1, "Configuration"); + add_tab(tab_hwnd, 2, "Logs"); + + create_label(hwnd, hinstance, IDC_STATUS_LABEL, "Status: Not connected", 20, 60, 300, 20); + create_label(hwnd, hinstance, IDC_WIN_VOL_LABEL, "Windows Volume: --", 20, 90, 300, 20); + STATUS_LABEL_HWND = GetDlgItem(hwnd, IDC_STATUS_LABEL); + WIN_VOL_LABEL_HWND = GetDlgItem(hwnd, IDC_WIN_VOL_LABEL); + + let button_class: Vec = "BUTTON\0".encode_utf16().collect(); + let btn_text: Vec = "Connect\0".encode_utf16().collect(); + CreateWindowExW( + 0, + button_class.as_ptr(), + btn_text.as_ptr(), + WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON as u32, + 20, 200, 100, 30, + hwnd, + IDC_BTN_CONNECT as _, + hinstance, + std::ptr::null(), + ); + + let list_class: Vec = "LISTBOX\0".encode_utf16().collect(); + let log_hwnd = CreateWindowExW( + WS_EX_CLIENTEDGE, + list_class.as_ptr(), + std::ptr::null(), + WS_CHILD | LBS_NOTIFY as u32 | WS_VSCROLL | WS_HSCROLL, + 0, 60, 580, 390, + hwnd, + IDC_LOG_LIST as _, + hinstance, + std::ptr::null(), + ); + LOG_LIST_HWND = log_hwnd; +} + +unsafe fn add_tab(tab_hwnd: HWND, index: i32, label: &str) { + let text: Vec = format!("{}\0", label).encode_utf16().collect(); + let mut item = TCITEMW { + mask: TCIF_TEXT, + dwState: 0, + dwStateMask: 0, + pszText: text.as_ptr() as *mut u16, + cchTextMax: text.len() as i32, + iImage: -1, + lParam: 0, + }; + SendMessageW( + tab_hwnd, + TCM_INSERTITEMW, + index as usize, + &mut item as *mut _ as LPARAM, + ); +} + +unsafe fn create_label( + parent: HWND, + hinstance: HMODULE, + id: i32, + text: &str, + x: i32, + y: i32, + w: i32, + h: i32, +) { + let class: Vec = "STATIC\0".encode_utf16().collect(); + let label_text: Vec = format!("{}\0", text).encode_utf16().collect(); + CreateWindowExW( + 0, + class.as_ptr(), + label_text.as_ptr(), + WS_CHILD | WS_VISIBLE | 0u32, // SS_LEFT = 0 + x, y, w, h, + parent, + id as _, + hinstance, + std::ptr::null(), + ); +} + +unsafe fn refresh_ui(_hwnd: HWND) { + if WIN_AUDIO_PTR.is_null() || WIN_STATE_PTR.is_null() { + return; + } + + let (vol_pct, muted) = { + let audio = &*WIN_AUDIO_PTR; + if let Ok(guard) = audio.lock() { + (guard.get_volume_percent(), guard.get_muted()) + } else { + return; + } + }; + + let (ca_connected, ca_device, _ca_vol, log_entries) = { + let state = &*WIN_STATE_PTR; + if let Ok(guard) = state.lock() { + ( + guard.cambridge.connected, + guard.cambridge.device_name.clone(), + guard.cambridge.volume_percent, + guard.log_entries.clone(), + ) + } else { + return; + } + }; + + if !STATUS_LABEL_HWND.is_null() { + let status = if ca_connected { + format!("Status: Connected - {}\0", ca_device) + } else { + "Status: Not connected\0".to_string() + }; + let status_w: Vec = status.encode_utf16().collect(); + SetWindowTextW(STATUS_LABEL_HWND, status_w.as_ptr()); + } + + if !WIN_VOL_LABEL_HWND.is_null() { + let vol_text = if muted { + format!("Windows Volume: {:.0}% (Muted)\0", vol_pct) + } else { + format!("Windows Volume: {:.0}%\0", vol_pct) + }; + let vol_w: Vec = vol_text.encode_utf16().collect(); + SetWindowTextW(WIN_VOL_LABEL_HWND, vol_w.as_ptr()); + } + + if !LOG_LIST_HWND.is_null() { + let count = SendMessageW(LOG_LIST_HWND, LB_GETCOUNT, 0, 0) as usize; + if count < log_entries.len() { + // Collect new entries into wide strings while holding no lock + let new_entries: Vec> = log_entries.iter() + .skip(count) + .map(|e| format!("{}\0", e).encode_utf16().collect()) + .collect(); + for text in &new_entries { + SendMessageW(LOG_LIST_HWND, LB_ADDSTRING, 0, text.as_ptr() as LPARAM); + } + let new_count = SendMessageW(LOG_LIST_HWND, LB_GETCOUNT, 0, 0); + if new_count > 0 { + SendMessageW( + LOG_LIST_HWND, + LB_SETTOPINDEX, + (new_count - 1) as usize, + 0, + ); + } + } + } +} diff --git a/src/VolumeAssistant.App.Rust/target/.rustc_info.json b/src/VolumeAssistant.App.Rust/target/.rustc_info.json new file mode 100644 index 0000000..108eb68 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/target/.rustc_info.json @@ -0,0 +1 @@ +{"rustc_fingerprint":3322298566373993979,"outputs":{"17747080675513052775":{"success":true,"status":"","code":0,"stdout":"rustc 1.94.0 (4a4ef493e 2026-03-02)\nbinary: rustc\ncommit-hash: 4a4ef493e3a1488c6e321570238084b38948f6db\ncommit-date: 2026-03-02\nhost: x86_64-unknown-linux-gnu\nrelease: 1.94.0\nLLVM version: 21.1.8\n","stderr":""},"6027984484328994041":{"success":true,"status":"","code":0,"stdout":"___.exe\nlib___.rlib\n___.dll\n___.dll\nlib___.a\n___.dll\n/home/runner/.rustup/toolchains/stable-x86_64-unknown-linux-gnu\noff\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_abi=\"\"\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"windows\"\ntarget_feature=\"cmpxchg16b\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_feature=\"sse3\"\ntarget_has_atomic=\"128\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"windows\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"pc\"\nwindows\n","stderr":""},"7971740275564407648":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/home/runner/.rustup/toolchains/stable-x86_64-unknown-linux-gnu\noff\npacked\nunpacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_abi=\"\"\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""}},"successes":{}} \ No newline at end of file diff --git a/src/VolumeAssistant.App.Rust/target/CACHEDIR.TAG b/src/VolumeAssistant.App.Rust/target/CACHEDIR.TAG new file mode 100644 index 0000000..20d7c31 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/target/CACHEDIR.TAG @@ -0,0 +1,3 @@ +Signature: 8a477f597d28d172789f06886806bc55 +# This file is a cache directory tag created by cargo. +# For information about cache directory tags see https://bford.info/cachedir/ diff --git a/src/VolumeAssistant.App.Rust/target/x86_64-pc-windows-gnu/CACHEDIR.TAG b/src/VolumeAssistant.App.Rust/target/x86_64-pc-windows-gnu/CACHEDIR.TAG new file mode 100644 index 0000000..20d7c31 --- /dev/null +++ b/src/VolumeAssistant.App.Rust/target/x86_64-pc-windows-gnu/CACHEDIR.TAG @@ -0,0 +1,3 @@ +Signature: 8a477f597d28d172789f06886806bc55 +# This file is a cache directory tag created by cargo. +# For information about cache directory tags see https://bford.info/cachedir/