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libs/scrap/src/common/android.rs

@@ -0,0 +1,129 @@
+use crate::android::ffi::*;
+use crate::rgba_to_i420;
+use lazy_static::lazy_static;
+use std::io;
+use std::sync::Mutex;
+
+lazy_static! {
+    static ref SCREEN_SIZE: Mutex<(u16, u16)> = Mutex::new((0, 0));
+}
+
+pub struct Capturer {
+    display: Display,
+    bgra: Vec<u8>,
+    saved_raw_data: Vec<u128>, // for faster compare and copy
+}
+
+impl Capturer {
+    pub fn new(display: Display, _yuv: bool) -> io::Result<Capturer> {
+        Ok(Capturer {
+            display,
+            bgra: Vec::new(),
+            saved_raw_data: Vec::new(),
+        })
+    }
+
+    pub fn width(&self) -> usize {
+        self.display.width() as usize
+    }
+
+    pub fn height(&self) -> usize {
+        self.display.height() as usize
+    }
+
+    pub fn frame<'a>(&'a mut self, _timeout_ms: u32) -> io::Result<Frame<'a>> {
+        if let Some(buf) = get_video_raw() {
+            crate::would_block_if_equal(&mut self.saved_raw_data, buf)?;
+            rgba_to_i420(self.width(), self.height(), buf, &mut self.bgra);
+            Ok(Frame::RAW(&self.bgra))
+        } else {
+            return Err(io::ErrorKind::WouldBlock.into());
+        }
+    }
+}
+
+pub enum Frame<'a> {
+    RAW(&'a [u8]),
+    VP9(&'a [u8]),
+    Empty,
+}
+
+pub struct Display {
+    default: bool,
+    rect: Rect,
+}
+
+#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
+struct Rect {
+    pub x: i16,
+    pub y: i16,
+    pub w: u16,
+    pub h: u16,
+}
+
+impl Display {
+    pub fn primary() -> io::Result<Display> {
+        let mut size = SCREEN_SIZE.lock().unwrap();
+        if size.0 == 0 || size.1 == 0 {
+            let (w, h) = get_size().unwrap_or((0, 0));
+            size.0 = w;
+            size.1 = h;
+        }
+        Ok(Display {
+            default: true,
+            rect: Rect {
+                x: 0,
+                y: 0,
+                w: size.0,
+                h: size.1,
+            },
+        })
+    }
+
+    pub fn all() -> io::Result<Vec<Display>> {
+        Ok(vec![Display::primary()?])
+    }
+
+    pub fn width(&self) -> usize {
+        self.rect.w as usize
+    }
+
+    pub fn height(&self) -> usize {
+        self.rect.h as usize
+    }
+
+    pub fn origin(&self) -> (i32, i32) {
+        let r = self.rect;
+        (r.x as _, r.y as _)
+    }
+
+    pub fn is_online(&self) -> bool {
+        true
+    }
+
+    pub fn is_primary(&self) -> bool {
+        self.default
+    }
+
+    pub fn name(&self) -> String {
+        "Android".into()
+    }
+
+    pub fn refresh_size() {
+        let mut size = SCREEN_SIZE.lock().unwrap();
+        let (w, h) = get_size().unwrap_or((0, 0));
+        size.0 = w;
+        size.1 = h;
+    }
+}
+
+fn get_size() -> Option<(u16, u16)> {
+    let res = call_main_service_get_by_name("screen_size").ok()?;
+    if res.len() > 0 {
+        let mut sp = res.split(":");
+        let w = sp.next()?.parse::<u16>().ok()?;
+        let h = sp.next()?.parse::<u16>().ok()?;
+        return Some((w, h));
+    }
+    None
+}

libs/scrap/src/common/mod.rs

@@ -19,7 +19,10 @@ cfg_if! {
     } else if #[cfg(dxgi)] {
         mod dxgi;
         pub use self::dxgi::*;
-    } else {
+    } else if #[cfg(android)] {
+        mod android;
+        pub use self::android::*;
+    }else {
         //TODO: Fallback implementation.
     }
 }
@@ -42,4 +45,4 @@ pub fn would_block_if_equal(old: &mut Vec<u128>, b: &[u8]) -> std::io::Result<()
     old.resize(b.len(), 0);
     old.copy_from_slice(b);
     Ok(())
-}
+}