feat: 截图线程 + 编码线程。
每个显示器分别使用一个截图线程和一个编码(png+base64)线程。避免程序不明原因崩溃。
This commit is contained in:
parent
6ea8325b15
commit
f92883199c
107
src-tauri/Cargo.lock
generated
107
src-tauri/Cargo.lock
generated
@ -546,6 +546,19 @@ dependencies = [
|
|||||||
"cfg-if",
|
"cfg-if",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "env_logger"
|
||||||
|
version = "0.10.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
|
||||||
|
dependencies = [
|
||||||
|
"humantime",
|
||||||
|
"is-terminal",
|
||||||
|
"log",
|
||||||
|
"regex",
|
||||||
|
"termcolor",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "errno"
|
name = "errno"
|
||||||
version = "0.2.8"
|
version = "0.2.8"
|
||||||
@ -1027,6 +1040,12 @@ dependencies = [
|
|||||||
"libc",
|
"libc",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "hermit-abi"
|
||||||
|
version = "0.3.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "html5ever"
|
name = "html5ever"
|
||||||
version = "0.25.2"
|
version = "0.25.2"
|
||||||
@ -1058,6 +1077,12 @@ version = "0.1.5"
|
|||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "21dec9db110f5f872ed9699c3ecf50cf16f423502706ba5c72462e28d3157573"
|
checksum = "21dec9db110f5f872ed9699c3ecf50cf16f423502706ba5c72462e28d3157573"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "humantime"
|
||||||
|
version = "2.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "ico"
|
name = "ico"
|
||||||
version = "0.2.0"
|
version = "0.2.0"
|
||||||
@ -1153,6 +1178,18 @@ dependencies = [
|
|||||||
"windows-sys 0.45.0",
|
"windows-sys 0.45.0",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "is-terminal"
|
||||||
|
version = "0.4.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "21b6b32576413a8e69b90e952e4a026476040d81017b80445deda5f2d3921857"
|
||||||
|
dependencies = [
|
||||||
|
"hermit-abi 0.3.1",
|
||||||
|
"io-lifetimes",
|
||||||
|
"rustix",
|
||||||
|
"windows-sys 0.45.0",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "itoa"
|
name = "itoa"
|
||||||
version = "0.4.8"
|
version = "0.4.8"
|
||||||
@ -1378,6 +1415,18 @@ dependencies = [
|
|||||||
"adler",
|
"adler",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "mio"
|
||||||
|
version = "0.8.6"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5b9d9a46eff5b4ff64b45a9e316a6d1e0bc719ef429cbec4dc630684212bfdf9"
|
||||||
|
dependencies = [
|
||||||
|
"libc",
|
||||||
|
"log",
|
||||||
|
"wasi 0.11.0+wasi-snapshot-preview1",
|
||||||
|
"windows-sys 0.45.0",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "ndk"
|
name = "ndk"
|
||||||
version = "0.6.0"
|
version = "0.6.0"
|
||||||
@ -1464,7 +1513,7 @@ version = "1.15.0"
|
|||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
|
checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
|
||||||
dependencies = [
|
dependencies = [
|
||||||
"hermit-abi",
|
"hermit-abi 0.2.6",
|
||||||
"libc",
|
"libc",
|
||||||
]
|
]
|
||||||
|
|
||||||
@ -1563,6 +1612,12 @@ dependencies = [
|
|||||||
"system-deps 6.0.3",
|
"system-deps 6.0.3",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "paris"
|
||||||
|
version = "1.5.13"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "2eaf2319cd71dd9ff38c72bebde61b9ea657134abcf26ae4205f54f772a32810"
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "parking_lot"
|
name = "parking_lot"
|
||||||
version = "0.12.1"
|
version = "0.12.1"
|
||||||
@ -2174,6 +2229,15 @@ dependencies = [
|
|||||||
"lazy_static",
|
"lazy_static",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "signal-hook-registry"
|
||||||
|
version = "1.4.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
|
||||||
|
dependencies = [
|
||||||
|
"libc",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "siphasher"
|
name = "siphasher"
|
||||||
version = "0.3.10"
|
version = "0.3.10"
|
||||||
@ -2195,6 +2259,16 @@ version = "1.10.0"
|
|||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
|
checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "socket2"
|
||||||
|
version = "0.4.9"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "64a4a911eed85daf18834cfaa86a79b7d266ff93ff5ba14005426219480ed662"
|
||||||
|
dependencies = [
|
||||||
|
"libc",
|
||||||
|
"winapi",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "soup2"
|
name = "soup2"
|
||||||
version = "0.2.1"
|
version = "0.2.1"
|
||||||
@ -2559,6 +2633,15 @@ dependencies = [
|
|||||||
"utf-8",
|
"utf-8",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "termcolor"
|
||||||
|
version = "1.2.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
|
||||||
|
dependencies = [
|
||||||
|
"winapi-util",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "test-demo"
|
name = "test-demo"
|
||||||
version = "0.0.0"
|
version = "0.0.0"
|
||||||
@ -2567,12 +2650,15 @@ dependencies = [
|
|||||||
"base64 0.21.0",
|
"base64 0.21.0",
|
||||||
"core-graphics",
|
"core-graphics",
|
||||||
"display-info",
|
"display-info",
|
||||||
|
"env_logger",
|
||||||
|
"log",
|
||||||
|
"paris",
|
||||||
"png",
|
"png",
|
||||||
"serde",
|
"serde",
|
||||||
"serde_json",
|
"serde_json",
|
||||||
"tauri",
|
"tauri",
|
||||||
"tauri-build",
|
"tauri-build",
|
||||||
"tracing",
|
"tokio",
|
||||||
"webp",
|
"webp",
|
||||||
]
|
]
|
||||||
|
|
||||||
@ -2662,12 +2748,29 @@ checksum = "03201d01c3c27a29c8a5cee5b55a93ddae1ccf6f08f65365c2c918f8c1b76f64"
|
|||||||
dependencies = [
|
dependencies = [
|
||||||
"autocfg",
|
"autocfg",
|
||||||
"bytes",
|
"bytes",
|
||||||
|
"libc",
|
||||||
"memchr",
|
"memchr",
|
||||||
|
"mio",
|
||||||
"num_cpus",
|
"num_cpus",
|
||||||
|
"parking_lot",
|
||||||
"pin-project-lite",
|
"pin-project-lite",
|
||||||
|
"signal-hook-registry",
|
||||||
|
"socket2",
|
||||||
|
"tokio-macros",
|
||||||
"windows-sys 0.45.0",
|
"windows-sys 0.45.0",
|
||||||
]
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "tokio-macros"
|
||||||
|
version = "1.8.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
|
|
||||||
[[package]]
|
[[package]]
|
||||||
name = "toml"
|
name = "toml"
|
||||||
version = "0.5.11"
|
version = "0.5.11"
|
||||||
|
@ -22,7 +22,10 @@ core-graphics = "0.22.3"
|
|||||||
display-info = "0.4.1"
|
display-info = "0.4.1"
|
||||||
png = "0.17.7"
|
png = "0.17.7"
|
||||||
anyhow = "1.0.69"
|
anyhow = "1.0.69"
|
||||||
tracing = "0.1.37"
|
tokio = {version = "1.26.0", features = ["full"] }
|
||||||
|
paris = { version = "1.5", features = ["timestamps", "macros"] }
|
||||||
|
log = "0.4.17"
|
||||||
|
env_logger = "0.10.0"
|
||||||
|
|
||||||
[features]
|
[features]
|
||||||
# this feature is used for production builds or when `devPath` points to the filesystem
|
# this feature is used for production builds or when `devPath` points to the filesystem
|
||||||
|
@ -1,16 +1,18 @@
|
|||||||
// Prevents additional console window on WiOk(ndows in release, DO NOT REMOVE!!
|
// Prevents additional console window on WiOk(ndows in release, DO NOT REMOVE!!
|
||||||
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
|
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
|
||||||
|
|
||||||
mod take_screenshot_loop;
|
pub mod screenshot;
|
||||||
|
mod screenshot_manager;
|
||||||
|
|
||||||
use base64::Engine;
|
use base64::Engine;
|
||||||
use core_graphics::display::{
|
use core_graphics::display::{
|
||||||
kCGNullWindowID, kCGWindowImageDefault, kCGWindowListOptionOnScreenOnly, CGDisplay,
|
kCGNullWindowID, kCGWindowImageDefault, kCGWindowListOptionOnScreenOnly, CGDisplay,
|
||||||
};
|
};
|
||||||
use display_info::DisplayInfo;
|
use display_info::DisplayInfo;
|
||||||
|
use paris::error;
|
||||||
|
use screenshot_manager::ScreenshotManager;
|
||||||
use serde::{Deserialize, Serialize};
|
use serde::{Deserialize, Serialize};
|
||||||
use serde_json::to_string;
|
use serde_json::to_string;
|
||||||
use tracing::error;
|
|
||||||
|
|
||||||
#[derive(Serialize, Deserialize)]
|
#[derive(Serialize, Deserialize)]
|
||||||
#[serde(remote = "DisplayInfo")]
|
#[serde(remote = "DisplayInfo")]
|
||||||
@ -63,7 +65,7 @@ fn take_screenshot(display_id: u32, scale_factor: f32) -> Result<String, String>
|
|||||||
kCGWindowImageDefault,
|
kCGWindowImageDefault,
|
||||||
)
|
)
|
||||||
.ok_or_else(|| anyhow::anyhow!("Display#{}: take screenshot failed", display_id))?;
|
.ok_or_else(|| anyhow::anyhow!("Display#{}: take screenshot failed", display_id))?;
|
||||||
println!("take screenshot took {}ms", start_at.elapsed().as_millis());
|
// println!("take screenshot took {}ms", start_at.elapsed().as_millis());
|
||||||
|
|
||||||
let buffer = cg_image.data();
|
let buffer = cg_image.data();
|
||||||
let bytes_per_row = cg_image.bytes_per_row() as f32;
|
let bytes_per_row = cg_image.bytes_per_row() as f32;
|
||||||
@ -74,10 +76,10 @@ fn take_screenshot(display_id: u32, scale_factor: f32) -> Result<String, String>
|
|||||||
let image_height = (height as f32 / scale_factor) as u32;
|
let image_height = (height as f32 / scale_factor) as u32;
|
||||||
let image_width = (width as f32 / scale_factor) as u32;
|
let image_width = (width as f32 / scale_factor) as u32;
|
||||||
|
|
||||||
println!(
|
// println!(
|
||||||
"raw image: {}x{}, output image: {}x{}",
|
// "raw image: {}x{}, output image: {}x{}",
|
||||||
width, height, image_width, image_height
|
// width, height, image_width, image_height
|
||||||
);
|
// );
|
||||||
// // from bitmap vec
|
// // from bitmap vec
|
||||||
let mut image_buffer = vec![0u8; (image_width * image_height * 3) as usize];
|
let mut image_buffer = vec![0u8; (image_width * image_height * 3) as usize];
|
||||||
|
|
||||||
@ -88,7 +90,6 @@ fn take_screenshot(display_id: u32, scale_factor: f32) -> Result<String, String>
|
|||||||
let b = buffer[offset];
|
let b = buffer[offset];
|
||||||
let g = buffer[offset + 1];
|
let g = buffer[offset + 1];
|
||||||
let r = buffer[offset + 2];
|
let r = buffer[offset + 2];
|
||||||
let a = buffer[offset + 3];
|
|
||||||
let offset = (y * image_width + x) as usize;
|
let offset = (y * image_width + x) as usize;
|
||||||
image_buffer[offset * 3] = r;
|
image_buffer[offset * 3] = r;
|
||||||
image_buffer[offset * 3 + 1] = g;
|
image_buffer[offset * 3 + 1] = g;
|
||||||
@ -136,12 +137,33 @@ fn take_screenshot(display_id: u32, scale_factor: f32) -> Result<String, String>
|
|||||||
})
|
})
|
||||||
}
|
}
|
||||||
|
|
||||||
fn main() {
|
#[tauri::command]
|
||||||
|
async fn subscribe_encoded_screenshot_updated(
|
||||||
|
window: tauri::Window,
|
||||||
|
display_id: u32,
|
||||||
|
) -> Result<(), String> {
|
||||||
|
let screenshot_manager = ScreenshotManager::global().await;
|
||||||
|
screenshot_manager
|
||||||
|
.subscribe_encoded_screenshot_updated(window, display_id)
|
||||||
|
.await
|
||||||
|
.map_err(|err| {
|
||||||
|
error!("subscribe_encoded_screenshot_updated: {}", err);
|
||||||
|
err.to_string()
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
#[tokio::main]
|
||||||
|
async fn main() {
|
||||||
|
env_logger::init();
|
||||||
|
|
||||||
|
let screenshot_manager = ScreenshotManager::global().await;
|
||||||
|
screenshot_manager.start().unwrap();
|
||||||
tauri::Builder::default()
|
tauri::Builder::default()
|
||||||
.invoke_handler(tauri::generate_handler![
|
.invoke_handler(tauri::generate_handler![
|
||||||
greet,
|
greet,
|
||||||
take_screenshot,
|
take_screenshot,
|
||||||
list_display_info
|
list_display_info,
|
||||||
|
subscribe_encoded_screenshot_updated
|
||||||
])
|
])
|
||||||
.run(tauri::generate_context!())
|
.run(tauri::generate_context!())
|
||||||
.expect("error while running tauri application");
|
.expect("error while running tauri application");
|
||||||
|
42
src-tauri/src/screenshot.rs
Normal file
42
src-tauri/src/screenshot.rs
Normal file
@ -0,0 +1,42 @@
|
|||||||
|
use std::sync::Arc;
|
||||||
|
|
||||||
|
use serde::Serialize;
|
||||||
|
use tauri::async_runtime::RwLock;
|
||||||
|
|
||||||
|
#[derive(Debug, Clone)]
|
||||||
|
pub struct Screenshot {
|
||||||
|
pub display_id: u32,
|
||||||
|
pub height: u32,
|
||||||
|
pub width: u32,
|
||||||
|
pub bytes_per_row: usize,
|
||||||
|
pub bytes: Arc<RwLock<Vec<u8>>>,
|
||||||
|
pub scale_factor: f32,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Screenshot {
|
||||||
|
pub fn new(
|
||||||
|
display_id: u32,
|
||||||
|
height: u32,
|
||||||
|
width: u32,
|
||||||
|
bytes_per_row: usize,
|
||||||
|
bytes: Vec<u8>,
|
||||||
|
scale_factor: f32,
|
||||||
|
) -> Self {
|
||||||
|
Self {
|
||||||
|
display_id,
|
||||||
|
height,
|
||||||
|
width,
|
||||||
|
bytes_per_row,
|
||||||
|
bytes: Arc::new(RwLock::new(bytes)),
|
||||||
|
scale_factor,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, Clone, Serialize)]
|
||||||
|
pub struct ScreenshotPayload {
|
||||||
|
pub display_id: u32,
|
||||||
|
pub height: u32,
|
||||||
|
pub width: u32,
|
||||||
|
pub base64_image: String,
|
||||||
|
}
|
252
src-tauri/src/screenshot_manager.rs
Normal file
252
src-tauri/src/screenshot_manager.rs
Normal file
@ -0,0 +1,252 @@
|
|||||||
|
use std::{collections::HashMap, sync::Arc};
|
||||||
|
|
||||||
|
use base64::Engine;
|
||||||
|
use core_graphics::display::{
|
||||||
|
kCGNullWindowID, kCGWindowImageDefault, kCGWindowListOptionOnScreenOnly, CGDisplay,
|
||||||
|
};
|
||||||
|
use paris::{error, info, warn};
|
||||||
|
use tauri::{async_runtime::RwLock, Window};
|
||||||
|
use tokio::sync::{watch, OnceCell};
|
||||||
|
|
||||||
|
use crate::screenshot::{Screenshot, ScreenshotPayload};
|
||||||
|
|
||||||
|
pub fn take_screenshot(display_id: u32, scale_factor: f32) -> anyhow::Result<Screenshot> {
|
||||||
|
log::debug!("take_screenshot");
|
||||||
|
// let start_at = std::time::Instant::now();
|
||||||
|
|
||||||
|
let cg_display = CGDisplay::new(display_id);
|
||||||
|
let cg_image = CGDisplay::screenshot(
|
||||||
|
cg_display.bounds(),
|
||||||
|
kCGWindowListOptionOnScreenOnly,
|
||||||
|
kCGNullWindowID,
|
||||||
|
kCGWindowImageDefault,
|
||||||
|
)
|
||||||
|
.ok_or_else(|| anyhow::anyhow!("Display#{}: take screenshot failed", display_id))?;
|
||||||
|
// println!("take screenshot took {}ms", start_at.elapsed().as_millis());
|
||||||
|
|
||||||
|
let buffer = cg_image.data();
|
||||||
|
let bytes_per_row = cg_image.bytes_per_row();
|
||||||
|
|
||||||
|
let height = cg_image.height();
|
||||||
|
let width = cg_image.width();
|
||||||
|
|
||||||
|
let mut bytes = vec![0u8; buffer.len() as usize];
|
||||||
|
bytes.copy_from_slice(&buffer);
|
||||||
|
|
||||||
|
Ok(Screenshot::new(
|
||||||
|
display_id,
|
||||||
|
height as u32,
|
||||||
|
width as u32,
|
||||||
|
bytes_per_row,
|
||||||
|
bytes,
|
||||||
|
scale_factor,
|
||||||
|
))
|
||||||
|
}
|
||||||
|
|
||||||
|
pub struct ScreenshotManager {
|
||||||
|
channels: Arc<RwLock<HashMap<u32, watch::Receiver<Screenshot>>>>,
|
||||||
|
encode_listeners: Arc<RwLock<HashMap<u32, Vec<Window>>>>,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl ScreenshotManager {
|
||||||
|
pub async fn global() -> &'static Self {
|
||||||
|
static SCREENSHOT_MANAGER: OnceCell<ScreenshotManager> = OnceCell::const_new();
|
||||||
|
|
||||||
|
SCREENSHOT_MANAGER
|
||||||
|
.get_or_init(|| async {
|
||||||
|
let channels = Arc::new(RwLock::new(HashMap::new()));
|
||||||
|
let encode_listeners = Arc::new(RwLock::new(HashMap::new()));
|
||||||
|
Self {
|
||||||
|
channels,
|
||||||
|
encode_listeners,
|
||||||
|
}
|
||||||
|
})
|
||||||
|
.await
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn start(&self) -> anyhow::Result<()> {
|
||||||
|
let displays = display_info::DisplayInfo::all()?;
|
||||||
|
for display in displays {
|
||||||
|
self.start_one(display.id, display.scale_factor)?;
|
||||||
|
}
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
fn start_one(&self, display_id: u32, scale_factor: f32) -> anyhow::Result<()> {
|
||||||
|
let channels = self.channels.to_owned();
|
||||||
|
tokio::spawn(async move {
|
||||||
|
let screenshot = take_screenshot(display_id, scale_factor);
|
||||||
|
|
||||||
|
if screenshot.is_err() {
|
||||||
|
warn!("take_screenshot_loop: {}", screenshot.err().unwrap());
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
let screenshot = screenshot.unwrap();
|
||||||
|
let (tx, rx) = watch::channel(screenshot);
|
||||||
|
{
|
||||||
|
let mut channels = channels.write().await;
|
||||||
|
channels.insert(display_id, rx);
|
||||||
|
}
|
||||||
|
loop {
|
||||||
|
Self::take_screenshot_loop(display_id, scale_factor, &tx).await;
|
||||||
|
tokio::time::sleep(std::time::Duration::from_millis(100)).await;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
pub async fn subscribe_encoded_screenshot_updated(
|
||||||
|
&self,
|
||||||
|
window: Window,
|
||||||
|
display_id: u32,
|
||||||
|
) -> anyhow::Result<()> {
|
||||||
|
let channels = self.channels.to_owned();
|
||||||
|
let encode_listeners = self.encode_listeners.to_owned();
|
||||||
|
log::info!("subscribe_encoded_screenshot_updated. {}", display_id);
|
||||||
|
|
||||||
|
{
|
||||||
|
let encode_listeners = encode_listeners.read().await;
|
||||||
|
let listening_windows = encode_listeners.get(&display_id);
|
||||||
|
if listening_windows.is_some() && listening_windows.unwrap().contains(&window) {
|
||||||
|
log::debug!("subscribe_encoded_screenshot_updated: already listening. display#{}, window#{}", display_id, window.label());
|
||||||
|
return Ok(());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
{
|
||||||
|
encode_listeners
|
||||||
|
.write()
|
||||||
|
.await
|
||||||
|
.entry(display_id)
|
||||||
|
.or_default()
|
||||||
|
.push(window);
|
||||||
|
}
|
||||||
|
|
||||||
|
tokio::spawn(async move {
|
||||||
|
info!("subscribe_encoded_screenshot_updated: start");
|
||||||
|
let channels = channels.read().await;
|
||||||
|
let rx = channels.get(&display_id);
|
||||||
|
if rx.is_none() {
|
||||||
|
error!(
|
||||||
|
"subscribe_encoded_screenshot_updated: can not find display_id {}",
|
||||||
|
display_id
|
||||||
|
);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
let mut rx = rx.unwrap().clone();
|
||||||
|
loop {
|
||||||
|
if let Err(err) = rx.changed().await {
|
||||||
|
error!(
|
||||||
|
"subscribe_encoded_screenshot_updated: can not wait rx {}",
|
||||||
|
err
|
||||||
|
);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
let encode_listeners = encode_listeners.read().await;
|
||||||
|
let windows = encode_listeners.get(&display_id);
|
||||||
|
if windows.is_none() || windows.unwrap().is_empty() {
|
||||||
|
info!("subscribe_encoded_screenshot_updated: no listener, stop");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
let screenshot = rx.borrow().clone();
|
||||||
|
let base64_image = Self::encode_screenshot_to_base64(&screenshot).await;
|
||||||
|
let height = screenshot.height;
|
||||||
|
let width = screenshot.width;
|
||||||
|
|
||||||
|
if base64_image.is_err() {
|
||||||
|
error!(
|
||||||
|
"subscribe_encoded_screenshot_updated: encode_screenshot_to_base64 error {}",
|
||||||
|
base64_image.err().unwrap()
|
||||||
|
);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
let base64_image = base64_image.unwrap();
|
||||||
|
for window in windows.unwrap().into_iter() {
|
||||||
|
let base64_image = base64_image.clone();
|
||||||
|
let payload = ScreenshotPayload {
|
||||||
|
display_id,
|
||||||
|
base64_image,
|
||||||
|
height,
|
||||||
|
width,
|
||||||
|
};
|
||||||
|
if let Err(err) = window.emit("encoded-screenshot-updated", payload) {
|
||||||
|
error!("subscribe_encoded_screenshot_updated: emit error {}", err)
|
||||||
|
} else {
|
||||||
|
info!(
|
||||||
|
"subscribe_encoded_screenshot_updated: emit success. display#{}",
|
||||||
|
display_id
|
||||||
|
)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn unsubscribe_encoded_screenshot_updated(&self, display_id: u32) -> anyhow::Result<()> {
|
||||||
|
let channels = self.channels.to_owned();
|
||||||
|
let mut channels = channels.write().await;
|
||||||
|
channels.remove(&display_id);
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn take_screenshot_loop(
|
||||||
|
display_id: u32,
|
||||||
|
scale_factor: f32,
|
||||||
|
tx: &watch::Sender<Screenshot>,
|
||||||
|
) {
|
||||||
|
let screenshot = take_screenshot(display_id, scale_factor);
|
||||||
|
if let Ok(screenshot) = screenshot {
|
||||||
|
tx.send(screenshot).unwrap();
|
||||||
|
} else {
|
||||||
|
warn!("take_screenshot_loop: {}", screenshot.err().unwrap());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn encode_screenshot_to_base64(screenshot: &Screenshot) -> anyhow::Result<String> {
|
||||||
|
let bytes = screenshot.bytes.read().await;
|
||||||
|
|
||||||
|
let scale_factor = screenshot.scale_factor;
|
||||||
|
|
||||||
|
let image_height = (screenshot.height as f32 / scale_factor) as u32;
|
||||||
|
let image_width = (screenshot.width as f32 / scale_factor) as u32;
|
||||||
|
let mut image_buffer = vec![0u8; (image_width * image_height * 3) as usize];
|
||||||
|
|
||||||
|
for y in 0..image_height {
|
||||||
|
for x in 0..image_width {
|
||||||
|
let offset = (((y as f32) * screenshot.bytes_per_row as f32 + (x as f32) * 4.0)
|
||||||
|
* scale_factor) as usize;
|
||||||
|
let b = bytes[offset];
|
||||||
|
let g = bytes[offset + 1];
|
||||||
|
let r = bytes[offset + 2];
|
||||||
|
let offset = (y * image_width + x) as usize;
|
||||||
|
image_buffer[offset * 3] = r;
|
||||||
|
image_buffer[offset * 3 + 1] = g;
|
||||||
|
image_buffer[offset * 3 + 2] = b;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut image_png = Vec::new();
|
||||||
|
let mut encoder = png::Encoder::new(&mut image_png, image_width, image_height);
|
||||||
|
encoder.set_color(png::ColorType::Rgb);
|
||||||
|
encoder.set_depth(png::BitDepth::Eight);
|
||||||
|
|
||||||
|
let mut writer = encoder
|
||||||
|
.write_header()
|
||||||
|
.map_err(|e| anyhow::anyhow!("png: {}", anyhow::anyhow!(e.to_string())))?;
|
||||||
|
writer
|
||||||
|
.write_image_data(&image_buffer)
|
||||||
|
.map_err(|e| anyhow::anyhow!("png: {}", anyhow::anyhow!(e.to_string())))?;
|
||||||
|
writer
|
||||||
|
.finish()
|
||||||
|
.map_err(|e| anyhow::anyhow!("png: {}", anyhow::anyhow!(e.to_string())))?;
|
||||||
|
|
||||||
|
let mut base64_image = String::new();
|
||||||
|
base64_image.push_str("data:image/webp;base64,");
|
||||||
|
let encoded = base64::engine::general_purpose::STANDARD_NO_PAD.encode(&*image_png);
|
||||||
|
base64_image.push_str(encoded.as_str());
|
||||||
|
Ok(base64_image)
|
||||||
|
}
|
||||||
|
}
|
20
src/App.tsx
20
src/App.tsx
@ -3,6 +3,7 @@ import { invoke } from "@tauri-apps/api/tauri";
|
|||||||
import "./App.css";
|
import "./App.css";
|
||||||
import { DisplayInfo } from './models/display-info.model';
|
import { DisplayInfo } from './models/display-info.model';
|
||||||
import { DisplayInfoPanel } from './components/display-info-panel';
|
import { DisplayInfoPanel } from './components/display-info-panel';
|
||||||
|
import { ScreenView } from './components/screen-view';
|
||||||
|
|
||||||
function App() {
|
function App() {
|
||||||
const [screenshots, setScreenshots] = createSignal<string[]>([]);
|
const [screenshots, setScreenshots] = createSignal<string[]>([]);
|
||||||
@ -14,9 +15,9 @@ function App() {
|
|||||||
});
|
});
|
||||||
});
|
});
|
||||||
|
|
||||||
createEffect(() => {
|
// createEffect(() => {
|
||||||
take_all_display_screenshot();
|
// take_all_display_screenshot();
|
||||||
}, [displays]);
|
// }, [displays]);
|
||||||
|
|
||||||
async function take_all_display_screenshot() {
|
async function take_all_display_screenshot() {
|
||||||
console.log('take_all_display_screenshot');
|
console.log('take_all_display_screenshot');
|
||||||
@ -37,18 +38,7 @@ function App() {
|
|||||||
return (
|
return (
|
||||||
<li>
|
<li>
|
||||||
<DisplayInfoPanel display={display} />
|
<DisplayInfoPanel display={display} />
|
||||||
</li>
|
<ScreenView displayId={display.id} />
|
||||||
);
|
|
||||||
})}
|
|
||||||
</ol>
|
|
||||||
<ol>
|
|
||||||
{screenshots().map((screenshot) => {
|
|
||||||
return (
|
|
||||||
<li>
|
|
||||||
<img
|
|
||||||
style="object-fit: contain; height: 400px; width: 600px"
|
|
||||||
src={screenshot}
|
|
||||||
/>
|
|
||||||
</li>
|
</li>
|
||||||
);
|
);
|
||||||
})}
|
})}
|
||||||
|
38
src/components/screen-view.tsx
Normal file
38
src/components/screen-view.tsx
Normal file
@ -0,0 +1,38 @@
|
|||||||
|
import { invoke } from '@tauri-apps/api';
|
||||||
|
import { listen } from '@tauri-apps/api/event';
|
||||||
|
import { Component, createEffect, createSignal, onCleanup } from 'solid-js';
|
||||||
|
|
||||||
|
type ScreenViewProps = {
|
||||||
|
displayId: number;
|
||||||
|
};
|
||||||
|
|
||||||
|
async function subscribeScreenshotUpdate(displayId: number) {
|
||||||
|
await invoke('subscribe_encoded_screenshot_updated', {
|
||||||
|
displayId,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
export const ScreenView: Component<ScreenViewProps> = (props) => {
|
||||||
|
const [image, setImage] = createSignal<string>();
|
||||||
|
createEffect(() => {
|
||||||
|
const unlisten = listen<{ base64_image: string; display_id: number }>(
|
||||||
|
'encoded-screenshot-updated',
|
||||||
|
(event) => {
|
||||||
|
if (event.payload.display_id === props.displayId) {
|
||||||
|
setImage(event.payload.base64_image);
|
||||||
|
}
|
||||||
|
|
||||||
|
console.log(event.payload.display_id, props.displayId);
|
||||||
|
},
|
||||||
|
);
|
||||||
|
subscribeScreenshotUpdate(props.displayId);
|
||||||
|
|
||||||
|
onCleanup(() => {
|
||||||
|
unlisten.then((unlisten) => {
|
||||||
|
unlisten();
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
return <img src={image()} class="object-contain" />;
|
||||||
|
};
|
Loading…
Reference in New Issue
Block a user