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libs/scrap/src/android/ffi.rs

@@ -0,0 +1,235 @@
+use jni::objects::JByteBuffer;
+use jni::objects::JString;
+use jni::objects::JValue;
+use jni::sys::jboolean;
+use jni::JNIEnv;
+use jni::{
+    objects::{GlobalRef, JClass, JObject},
+    JavaVM,
+};
+
+use jni::errors::{Error as JniError, Result as JniResult};
+use lazy_static::lazy_static;
+use std::ops::Not;
+use std::sync::atomic::{AtomicPtr, Ordering::SeqCst};
+use std::sync::{Mutex, RwLock};
+use std::time::{Duration, Instant};
+lazy_static! {
+    static ref JVM: RwLock<Option<JavaVM>> = RwLock::new(None);
+    static ref MAIN_SERVICE_CTX: RwLock<Option<GlobalRef>> = RwLock::new(None); // MainService -> video service / audio service / info
+    static ref INPUT_CTX: RwLock<Option<GlobalRef>> = RwLock::new(None);
+    static ref VIDEO_RAW: Mutex<FrameRaw> = Mutex::new(FrameRaw::new("video", MAX_VIDEO_FRAME_TIMEOUT));
+    static ref AUDIO_RAW: Mutex<FrameRaw> = Mutex::new(FrameRaw::new("audio", MAX_AUDIO_FRAME_TIMEOUT));
+}
+
+const MAX_VIDEO_FRAME_TIMEOUT: Duration = Duration::from_millis(100);
+const MAX_AUDIO_FRAME_TIMEOUT: Duration = Duration::from_millis(1000);
+
+struct FrameRaw {
+    name: &'static str,
+    ptr: AtomicPtr<u8>,
+    len: usize,
+    last_update: Instant,
+    timeout: Duration,
+    enable: bool,
+}
+
+impl FrameRaw {
+    fn new(name: &'static str, timeout: Duration) -> Self {
+        FrameRaw {
+            name,
+            ptr: AtomicPtr::default(),
+            len: 0,
+            last_update: Instant::now(),
+            timeout,
+            enable: false,
+        }
+    }
+
+    fn set_enable(&mut self, value: bool) {
+        self.enable = value;
+    }
+
+    fn update(&mut self, data: &mut [u8]) {
+        if self.enable.not() {
+            return;
+        }
+        self.len = data.len();
+        self.ptr.store(data.as_mut_ptr(), SeqCst);
+        self.last_update = Instant::now();
+    }
+
+    // take inner data as slice
+    // release when success
+    fn take<'a>(&mut self) -> Option<&'a [u8]> {
+        if self.enable.not() {
+            return None;
+        }
+        let ptr = self.ptr.load(SeqCst);
+        if ptr.is_null() || self.len == 0 {
+            None
+        } else {
+            if self.last_update.elapsed() > self.timeout {
+                log::trace!("Failed to take {} raw,timeout!", self.name);
+                return None;
+            }
+            let slice = unsafe { std::slice::from_raw_parts(ptr, self.len) };
+            self.release();
+            Some(slice)
+        }
+    }
+
+    fn release(&mut self) {
+        self.len = 0;
+        self.ptr.store(std::ptr::null_mut(), SeqCst);
+    }
+}
+
+pub fn get_video_raw<'a>() -> Option<&'a [u8]> {
+    VIDEO_RAW.lock().ok()?.take()
+}
+
+pub fn get_audio_raw<'a>() -> Option<&'a [u8]> {
+    AUDIO_RAW.lock().ok()?.take()
+}
+
+#[no_mangle]
+pub extern "system" fn Java_com_carriez_flutter_1hbb_MainService_onVideoFrameUpdate(
+    env: JNIEnv,
+    _class: JClass,
+    buffer: JObject,
+) {
+    let jb = JByteBuffer::from(buffer);
+    let slice = env.get_direct_buffer_address(jb).unwrap();
+    VIDEO_RAW.lock().unwrap().update(slice);
+}
+
+#[no_mangle]
+pub extern "system" fn Java_com_carriez_flutter_1hbb_MainService_onAudioFrameUpdate(
+    env: JNIEnv,
+    _class: JClass,
+    buffer: JObject,
+) {
+    let jb = JByteBuffer::from(buffer);
+    let slice = env.get_direct_buffer_address(jb).unwrap();
+    AUDIO_RAW.lock().unwrap().update(slice);
+}
+
+#[no_mangle]
+pub extern "system" fn Java_com_carriez_flutter_1hbb_MainService_setFrameRawEnable(
+    env: JNIEnv,
+    _class: JClass,
+    name: JString,
+    value: jboolean,
+) {
+    if let Ok(name) = env.get_string(name) {
+        let name: String = name.into();
+        let value = value.eq(&1);
+        if name.eq("video") {
+            VIDEO_RAW.lock().unwrap().set_enable(value);
+        } else if name.eq("audio") {
+            AUDIO_RAW.lock().unwrap().set_enable(value);
+        }
+    };
+}
+
+#[no_mangle]
+pub extern "system" fn Java_com_carriez_flutter_1hbb_MainService_init(
+    env: JNIEnv,
+    _class: JClass,
+    ctx: JObject,
+) {
+    log::debug!("MainService init from java");
+    let jvm = env.get_java_vm().unwrap();
+
+    *JVM.write().unwrap() = Some(jvm);
+
+    let context = env.new_global_ref(ctx).unwrap();
+    *MAIN_SERVICE_CTX.write().unwrap() = Some(context);
+}
+
+#[no_mangle]
+pub extern "system" fn Java_com_carriez_flutter_1hbb_InputService_init(
+    env: JNIEnv,
+    _class: JClass,
+    ctx: JObject,
+) {
+    log::debug!("InputService init from java");
+    let jvm = env.get_java_vm().unwrap();
+
+    *JVM.write().unwrap() = Some(jvm);
+
+    let context = env.new_global_ref(ctx).unwrap();
+    *INPUT_CTX.write().unwrap() = Some(context);
+}
+
+pub fn call_input_service_mouse_input(mask: i32, x: i32, y: i32) -> JniResult<()> {
+    if let (Some(jvm), Some(ctx)) = (
+        JVM.read().unwrap().as_ref(),
+        INPUT_CTX.read().unwrap().as_ref(),
+    ) {
+        let env = jvm.attach_current_thread_as_daemon()?;
+        env.call_method(
+            ctx,
+            "rustMouseInput",
+            "(III)V",
+            &[JValue::Int(mask), JValue::Int(x), JValue::Int(y)],
+        )?;
+        return Ok(());
+    } else {
+        return Err(JniError::ThrowFailed(-1));
+    }
+}
+
+pub fn call_main_service_get_by_name(name: &str) -> JniResult<String> {
+    if let (Some(jvm), Some(ctx)) = (
+        JVM.read().unwrap().as_ref(),
+        MAIN_SERVICE_CTX.read().unwrap().as_ref(),
+    ) {
+        let env = jvm.attach_current_thread_as_daemon()?;
+        let name = env.new_string(name)?;
+        let res = env
+            .call_method(
+                ctx,
+                "rustGetByName",
+                "(Ljava/lang/String;)Ljava/lang/String;",
+                &[JValue::Object(name.into())],
+            )?
+            .l()?;
+        let res = env.get_string(res.into())?;
+        let res = res.to_string_lossy().to_string();
+        return Ok(res);
+    } else {
+        return Err(JniError::ThrowFailed(-1));
+    }
+}
+
+pub fn call_main_service_set_by_name(
+    name: &str,
+    arg1: Option<&str>,
+    arg2: Option<&str>,
+) -> JniResult<()> {
+    if let (Some(jvm), Some(ctx)) = (
+        JVM.read().unwrap().as_ref(),
+        MAIN_SERVICE_CTX.read().unwrap().as_ref(),
+    ) {
+        let env = jvm.attach_current_thread_as_daemon()?;
+        let name = env.new_string(name)?;
+        let arg1 = env.new_string(arg1.unwrap_or(""))?;
+        let arg2 = env.new_string(arg2.unwrap_or(""))?;
+
+        env.call_method(
+            ctx,
+            "rustSetByName",
+            "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V",
+            &[
+                JValue::Object(name.into()),
+                JValue::Object(arg1.into()),
+                JValue::Object(arg2.into()),
+            ],
+        )?;
+        return Ok(());
+    } else {
+        return Err(JniError::ThrowFailed(-1));
+    }
+}

libs/scrap/src/android/mod.rs

@@ -0,0 +1,6 @@
+pub mod ffi;
+use std::sync::RwLock;
+
+pub use ffi::*;
+
+use lazy_static::lazy_static;