feat: 支持设置音量。

src-tauri/Cargo.lock

@@ -109,6 +109,26 @@ version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a"
 
+[[package]]
+name = "bindgen"
+version = "0.64.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4243e6031260db77ede97ad86c27e501d646a27ab57b59a574f725d98ab1fb4"
+dependencies = [
+ "bitflags",
+ "cexpr",
+ "clang-sys",
+ "lazy_static",
+ "lazycell",
+ "peeking_take_while",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash",
+ "shlex",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -231,6 +251,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
 
+[[package]]
+name = "cexpr"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fac387a98bb7c37292057cffc56d62ecb629900026402633ae9160df93a8766"
+dependencies = [
+ "nom 7.1.3",
+]
+
 [[package]]
 name = "cfb"
 version = "0.7.3"
@@ -280,6 +309,17 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "clang-sys"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c688fc74432808e3eb684cae8830a86be1d66a2bd58e1f248ed0960a590baf6f"
+dependencies = [
+ "glob",
+ "libc",
+ "libloading",
+]
+
 [[package]]
 name = "cmake"
 version = "0.1.50"
@@ -414,6 +454,26 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "coreaudio-rs"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb17e2d1795b1996419648915df94bc7103c28f7b48062d7acf4652fc371b2ff"
+dependencies = [
+ "bitflags",
+ "core-foundation-sys 0.6.2",
+ "coreaudio-sys",
+]
+
+[[package]]
+name = "coreaudio-sys"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f034b2258e6c4ade2f73bf87b21047567fb913ee9550837c2316d139b0262b24"
+dependencies = [
+ "bindgen",
+]
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.7"
@@ -734,7 +794,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24ce75530893d834dcfe3bb67ce0e7dec489484e7cb4423ca31618af4bab24fe"
 dependencies = [
- "nom",
+ "nom 3.2.1",
 ]
 
 [[package]]
@@ -1674,10 +1734,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
-name = "libc"
+name = "lazycell"
-version = "0.2.142"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
+checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
+
+[[package]]
+name = "libc"
+version = "0.2.143"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "edc207893e85c5d6be840e969b496b53d94cec8be2d501b214f50daa97fa8024"
+
+[[package]]
+name = "libloading"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f"
+dependencies = [
+ "cfg-if",
+ "winapi",
+]
 
 [[package]]
 name = "libudev-sys"
@@ -1831,7 +1907,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8eb961d01a3bb07969cfa276be2ab88c31d0fefa77a872696832732d6e9ec094"
 dependencies = [
  "mccs",
- "nom",
+ "nom 3.2.1",
 ]
 
 [[package]]
@@ -1841,7 +1917,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3cdaa8fe19a1a1918becc1b8cbbbdc1058bc71411dff4de0a6ec6b5269f49d38"
 dependencies = [
  "mccs",
- "nom",
+ "nom 3.2.1",
  "serde",
  "serde_derive",
  "serde_yaml",
@@ -1884,6 +1960,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "minimal-lexical"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.1"
@@ -1955,6 +2037,16 @@ dependencies = [
  "memchr 1.0.2",
 ]
 
+[[package]]
+name = "nom"
+version = "7.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
+dependencies = [
+ "memchr 2.5.0",
+ "minimal-lexical",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.46.0"
@@ -2202,6 +2294,12 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8835116a5c179084a830efb3adc117ab007512b535bc1a21c991d3b32a6b44dd"
 
+[[package]]
+name = "peeking_take_while"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
+
 [[package]]
 name = "percent-encoding"
 version = "2.2.0"
@@ -2623,6 +2721,12 @@ dependencies = [
  "uninitialized",
 ]
 
+[[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -2863,6 +2967,12 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43b2853a4d09f215c24cc5489c992ce46052d359b5109343cbafbf26bc62f8a3"
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.1"
@@ -3330,6 +3440,7 @@ dependencies = [
  "color_space",
  "core-foundation",
  "core-graphics",
+ "coreaudio-rs",
  "ddc-hi",
  "display-info",
  "env_logger",

src-tauri/Cargo.toml

@@ -36,6 +36,7 @@ tokio-stream = "0.1.14"
 mdns-sd = "0.7.2"
 futures = "0.3.28"
 ddc-hi = "0.4.1"
+coreaudio-rs = "0.11.2"
 
 [features]
 # this feature is used for production builds or when `devPath` points to the filesystem

src-tauri/src/main.rs

@@ -5,8 +5,9 @@ mod ambient_light;
 mod display;
 mod led_color;
 mod rpc;
-pub mod screenshot;
+mod screenshot;
 mod screenshot_manager;
+mod volume;
 
 use ambient_light::{Border, ColorCalibration, LedStripConfig, LedStripConfigGroup};
 use display::{DisplayManager, DisplayState};
@@ -18,6 +19,7 @@ use screenshot_manager::ScreenshotManager;
 use serde::{Deserialize, Serialize};
 use serde_json::to_string;
 use tauri::{http::ResponseBuilder, regex, Manager};
+use volume::VolumeManager;
 
 #[derive(Serialize, Deserialize)]
 #[serde(remote = "DisplayInfo")]
@@ -223,6 +225,8 @@ async fn main() {
 
     let _mqtt = MqttRpc::global().await;
 
+    let _volume = VolumeManager::global().await;
+
     tauri::Builder::default()
         .invoke_handler(tauri::generate_handler![
             greet,

src-tauri/src/rpc/board.rs

@@ -45,6 +45,8 @@ impl Board {
             let display_setting_request_sender = board_message_channels
                 .display_setting_request_sender
                 .clone();
+            let volume_setting_request_sender =
+                board_message_channels.volume_setting_request_sender.clone();
 
             loop {
                 match socket.try_recv(&mut buf) {
@@ -60,6 +62,8 @@ impl Board {
                             if let Err(err) = result {
                                 error!("send display setting request to channel failed: {:?}", err);
                             }
+                        } else if buf[0] == 4 {
+                            let result = volume_setting_request_sender.send(buf[1] as f32 / 100.0);
                         }
                     }
                     Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {

src-tauri/src/rpc/channels.rs

@@ -6,6 +6,7 @@ use super::DisplaySettingRequest;
 
 pub struct BoardMessageChannels {
     pub display_setting_request_sender: Arc<broadcast::Sender<DisplaySettingRequest>>,
+    pub volume_setting_request_sender: Arc<broadcast::Sender<f32>>,
 }
 
 impl BoardMessageChannels {
@@ -19,8 +20,12 @@ impl BoardMessageChannels {
         let (display_setting_request_sender, _) = broadcast::channel(16);
         let display_setting_request_sender = Arc::new(display_setting_request_sender);
 
+        let (volume_setting_request_sender, _) = broadcast::channel(16);
+        let volume_setting_request_sender = Arc::new(volume_setting_request_sender);
+
         Self {
             display_setting_request_sender,
+            volume_setting_request_sender,
         }
     }
 }

src-tauri/src/rpc/udp.rs

@@ -3,9 +3,9 @@ use std::{collections::HashMap, sync::Arc, time::Duration};
 use futures::future::join_all;
 use mdns_sd::{ServiceDaemon, ServiceEvent};
 use paris::{error, info, warn};
-use tokio::sync::{watch, OnceCell, RwLock, broadcast};
+use tokio::sync::{watch, OnceCell, RwLock};
 
-use super::{Board, BoardInfo, DisplaySettingRequest};
+use super::{Board, BoardInfo};
 
 #[derive(Debug, Clone)]
 pub struct UdpRpc {

src-tauri/src/volume/manager.rs

@@ -0,0 +1,101 @@
+use std::{
+    mem,
+    sync::{Arc, RwLock},
+};
+
+use coreaudio::{
+    audio_unit::macos_helpers::get_default_device_id,
+    sys::{
+        kAudioHardwareServiceDeviceProperty_VirtualMasterVolume, kAudioObjectPropertyScopeOutput,
+        AudioObjectHasProperty, AudioObjectPropertyAddress, AudioObjectSetPropertyData,
+    },
+};
+use paris::error;
+use tokio::sync::OnceCell;
+
+use crate::rpc::BoardMessageChannels;
+
+pub struct VolumeManager {
+    current_volume: Arc<RwLock<f32>>,
+    handler: Option<tokio::task::JoinHandle<()>>,
+}
+
+impl VolumeManager {
+    pub async fn global() -> &'static Self {
+        static VOLUME_MANAGER: OnceCell<VolumeManager> = OnceCell::const_new();
+
+        VOLUME_MANAGER
+            .get_or_init(|| async { Self::create() })
+            .await
+    }
+
+    pub fn create() -> Self {
+        let mut instance = Self {
+            current_volume: Arc::new(RwLock::new(0.0)),
+            handler: None,
+        };
+
+        instance.subscribe_volume_setting_request();
+
+        instance
+    }
+
+    fn subscribe_volume_setting_request(&mut self) {
+        let handler = tokio::spawn(async {
+            let channels = BoardMessageChannels::global().await;
+            let mut request_rx = channels.volume_setting_request_sender.subscribe();
+
+            while let Ok(volume) = request_rx.recv().await {
+                if let Err(err) = Self::set_volume(volume) {
+                    error!("failed to set volume: {}", err);
+                }
+            }
+        });
+
+        self.handler = Some(handler);
+    }
+
+    fn set_volume(volume: f32) -> anyhow::Result<()> {
+        log::debug!("set volume: {}", volume);
+
+        let device_id = get_default_device_id(false);
+
+        if device_id.is_none() {
+            anyhow::bail!("default audio output device is not found.");
+        }
+
+        let device_id = device_id.unwrap();
+
+        let address = AudioObjectPropertyAddress {
+            mSelector: kAudioHardwareServiceDeviceProperty_VirtualMasterVolume,
+            mScope: kAudioObjectPropertyScopeOutput,
+            mElement: 0,
+        };
+
+        log::debug!("device id: {}", device_id);
+        log::debug!("address: {:?}", address);
+
+        if 0 == unsafe { AudioObjectHasProperty(device_id, &address) } {
+            anyhow::bail!("Can not get audio property");
+        }
+
+        let size = mem::size_of::<f32>() as u32;
+
+        let result = unsafe {
+            AudioObjectSetPropertyData(
+                device_id,
+                &address,
+                0,
+                std::ptr::null(),
+                size,
+                &volume as *const f32 as *const std::ffi::c_void,
+            )
+        };
+
+        if result != 0 {
+            anyhow::bail!("Can not set audio property");
+        }
+
+        Ok(())
+    }
+}

src-tauri/src/volume/mod.rs

@@ -0,0 +1,3 @@
+mod manager;
+
+pub use manager::*;