devraza/rustboyadvance-ng
Archived
1
Fork 0
Code Issues Pull requests Packages Projects Releases 1 Wiki Activity

platform/android: Big re-write of native interface

Browse source 
Mainly convert mainloop and audio thread into native code for
performance increase. (Calling into JNI every frame was costy)

The code was cleaned up quite a bit, but I may have introduced new bugs
in this process :<


Former-commit-id: fdbc21b5ab39f3d2e36647fd1177dc9a84a16980
Former-commit-id: ac765dbee8c994e1b69cc694846511837c2685b9
This commit is contained in:
Michel Heily 2020-09-30 00:27:00 +03:00
parent 08a7cd966a
commit ba2eff82ac
25 changed files with 1566 additions and 892 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

952
Cargo.lock generated
View file

File diff suppressed because it is too large Load diff

4
bindings/rustboyadvance-jni/Cargo.toml
View file

@ -10,8 +10,8 @@ publish = false
crate-type = ["staticlib", "cdylib"]
[dependencies]
rustboyadvance-core = {path = "../../core/"}
jni = { version = "0.16", default-features = false }
rustboyadvance-core = {path = "../../core/", features = ["arm7tdmi_dispatch_table", "no_video_interface"]}
jni = "0.17.0"
log = {version = "0.4.8", features = ["release_max_level_info", "max_level_debug"]}
[target.'cfg(target_os="android")'.dependencies]

129
bindings/rustboyadvance-jni/src/audio/connector.rs Normal file
View file

@ -0,0 +1,129 @@
use jni::objects::{GlobalRef, JMethodID, JObject, JValue};
use jni::signature::{JavaType, Primitive};
use jni::sys::{jlong, jmethodID};
use jni::JNIEnv;
pub struct AudioJNIConnector {
pub audio_player_ref: GlobalRef,
pub audio_buffer_ref: GlobalRef,
/// jmethodID is safe to pass between threads but the jni-sys crate marked them as !Send
/// TODO send patch to jni-sys
mid_audio_write: jlong,
mid_audio_play: jlong,
mid_audio_pause: jlong,
pub sample_rate: i32,
pub sample_count: usize,
}
impl AudioJNIConnector {
pub fn new(env: &JNIEnv, audio_player: JObject) -> AudioJNIConnector {
let audio_player_ref = env.new_global_ref(audio_player).unwrap();
let audio_player_klass = env.get_object_class(audio_player_ref.as_obj()).unwrap();
let mid_audio_write = env
.get_method_id(audio_player_klass, "audioWrite", "([SII)I")
.expect("failed to get methodID for audioWrite")
.into_inner() as jlong;
let mid_audio_play = env
.get_method_id(audio_player_klass, "play", "()V")
.expect("failed to get methodID for audioPlay")
.into_inner() as jlong;
let mid_audio_pause = env
.get_method_id(audio_player_klass, "pause", "()V")
.expect("failed to get methodID for audioPause")
.into_inner() as jlong;
let mid_get_sample_rate = env
.get_method_id(audio_player_klass, "getSampleRate", "()I")
.expect("failed to get methodID for getSampleRate");
let mid_get_sample_count = env
.get_method_id(audio_player_klass, "getSampleCount", "()I")
.expect("failed to get methodID for getSampleCount");
let result = env
.call_method_unchecked(
audio_player_ref.as_obj(),
mid_get_sample_count,
JavaType::Primitive(Primitive::Int),
&[],
)
.unwrap();
let sample_count = match result {
JValue::Int(sample_count) => sample_count as usize,
_ => panic!("bad return value"),
};
let result = env
.call_method_unchecked(
audio_player_ref.as_obj(),
mid_get_sample_rate,
JavaType::Primitive(Primitive::Int),
&[],
)
.unwrap();
let sample_rate = match result {
JValue::Int(sample_rate) => sample_rate as i32,
_ => panic!("bad return value"),
};
let audio_buffer = env
.new_short_array(sample_count as i32)
.expect("failed to create sound buffer");
let audio_buffer_ref = env.new_global_ref(audio_buffer).unwrap();
// Don't need this ref anymore
drop(audio_player_klass);
AudioJNIConnector {
audio_player_ref,
audio_buffer_ref,
mid_audio_pause,
mid_audio_play,
mid_audio_write,
sample_rate,
sample_count,
}
}
#[inline]
pub fn pause(&self, env: &JNIEnv) {
// TODO handle errors
let _ = env.call_method_unchecked(
self.audio_player_ref.as_obj(),
JMethodID::from(self.mid_audio_pause as jmethodID),
JavaType::Primitive(Primitive::Void),
&[],
);
}
#[inline]
pub fn play(&self, env: &JNIEnv) {
// TODO handle errors
let _ = env.call_method_unchecked(
self.audio_player_ref.as_obj(),
JMethodID::from(self.mid_audio_play as jmethodID),
JavaType::Primitive(Primitive::Void),
&[],
);
}
#[inline]
pub fn write_audio_samples(&self, env: &JNIEnv, samples: &[i16]) {
// TODO handle errors
env.set_short_array_region(self.audio_buffer_ref.as_obj().into_inner(), 0, &samples)
.unwrap();
let _ = env.call_method_unchecked(
self.audio_player_ref.as_obj(),
JMethodID::from(self.mid_audio_write as jmethodID),
JavaType::Primitive(Primitive::Int),
&[
JValue::from(self.audio_buffer_ref.as_obj()),
JValue::Int(0), // offset_in_shorts
JValue::Int(samples.len() as i32), // size_in_shorts
],
);
}
}

29
bindings/rustboyadvance-jni/src/audio/mod.rs Normal file
View file

@ -0,0 +1,29 @@
pub mod connector;
pub mod thread;
pub mod util {
use jni::objects::{JObject, JValue};
use jni::signature::{JavaType, Primitive};
use jni::JNIEnv;
pub fn get_sample_rate(env: &JNIEnv, audio_player_obj: JObject) -> i32 {
let audio_player_klass = env.get_object_class(audio_player_obj).unwrap();
let mid_get_sample_rate = env
.get_method_id(audio_player_klass, "getSampleRate", "()I")
.expect("failed to get methodID for getSampleRate");
let result = env
.call_method_unchecked(
audio_player_obj,
mid_get_sample_rate,
JavaType::Primitive(Primitive::Int),
&[],
)
.unwrap();
let sample_rate = match result {
JValue::Int(sample_rate) => sample_rate as i32,
_ => panic!("bad return value"),
};
return sample_rate;
}
}

66
bindings/rustboyadvance-jni/src/audio/thread.rs Normal file
View file

@ -0,0 +1,66 @@
use super::connector::AudioJNIConnector;
use std::sync::mpsc::{channel, Sender};
use std::thread;
use std::thread::JoinHandle;
use rustboyadvance_core::util::audio::Consumer;
use jni::JavaVM;
#[derive(Debug)]
#[allow(dead_code)]
pub enum AudioThreadCommand {
RenderAudio,
Pause,
Play,
Terminate,
}
pub(crate) fn spawn_audio_worker_thread(
audio_connector: AudioJNIConnector,
jvm: JavaVM,
mut consumer: Consumer<i16>,
) -> (JoinHandle<AudioJNIConnector>, Sender<AudioThreadCommand>) {
let (tx, rx) = channel();
let handle = thread::spawn(move || {
info!("[AudioWorker] spawned!");
info!("[AudioWorker] Attaching JVM");
let env = jvm.attach_current_thread().unwrap();
loop {
let command = rx.recv().unwrap();
match command {
AudioThreadCommand::Pause => {
info!("[AudioWorker] - got {:?} command", command);
audio_connector.pause(&env);
}
AudioThreadCommand::Play => {
info!("[AudioWorker] - got {:?} command", command);
audio_connector.play(&env);
}
AudioThreadCommand::RenderAudio => {
let mut samples = [0; 4096 * 2]; // TODO is this memset expansive ?
let count = consumer.pop_slice(&mut samples);
audio_connector.write_audio_samples(&env, &samples[0..count]);
}
AudioThreadCommand::Terminate => {
info!("[AudioWorker] - got terminate command!");
break;
}
}
}
info!("[AudioWorker] terminating");
// return the audio connector back
audio_connector
});
(handle, tx)
}

403
bindings/rustboyadvance-jni/src/emulator.rs Normal file
View file

@ -0,0 +1,403 @@
use rustboyadvance_core::prelude::*;
use rustboyadvance_core::util::audio::{AudioRingBuffer, Producer};
// use rustboyadvance_core::util::FpsCounter;
use std::cell::RefCell;
use std::path::Path;
use std::rc::Rc;
use std::sync::{Mutex, MutexGuard};
use std::time::{Duration, Instant};
use jni::objects::{GlobalRef, JMethodID, JObject, JString, JValue};
use jni::signature;
use jni::sys::{jboolean, jbyteArray, jintArray, jmethodID};
use jni::JNIEnv;
use crate::audio::{self, connector::AudioJNIConnector, thread::AudioThreadCommand};
struct Hardware {
sample_rate: i32,
audio_producer: Option<Producer<i16>>,
key_state: u16,
}
impl AudioInterface for Hardware {
fn push_sample(&mut self, samples: &[i16]) {
if let Some(prod) = &mut self.audio_producer {
for s in samples.iter() {
let _ = prod.push(*s);
}
} else {
// The gba is never ran before audio_producer is initialized
unreachable!()
}
}
fn get_sample_rate(&self) -> i32 {
self.sample_rate
}
}
impl InputInterface for Hardware {
fn poll(&mut self) -> u16 {
self.key_state
}
}
struct Renderer {
renderer_ref: GlobalRef,
frame_buffer_ref: GlobalRef,
mid_render_frame: jmethodID,
}
impl Renderer {
fn new(env: &JNIEnv, renderer_obj: JObject) -> Result<Renderer, String> {
let renderer_ref = env
.new_global_ref(renderer_obj)
.map_err(|e| format!("failed to add new global ref, error: {:?}", e))?;
let frame_buffer = env
.new_int_array(240 * 160)
.map_err(|e| format!("failed to create framebuffer, error: {:?}", e))?;
let frame_buffer_ref = env
.new_global_ref(frame_buffer)
.map_err(|e| format!("failed to add new global ref, error: {:?}", e))?;
let renderer_klass = env
.get_object_class(renderer_ref.as_obj())
.expect("failed to get renderer class");
let mid_render_frame = env
.get_method_id(renderer_klass, "renderFrame", "([I)V")
.expect("failed to get methodID for renderFrame")
.into_inner();
Ok(Renderer {
renderer_ref,
frame_buffer_ref,
mid_render_frame,
})
}
#[inline]
fn render_frame(&self, env: &JNIEnv, buffer: &[u32]) {
unsafe {
env.set_int_array_region(
self.frame_buffer_ref.as_obj().into_inner(),
0,
std::mem::transmute::<&[u32], &[i32]>(buffer),
)
.unwrap();
}
env.call_method_unchecked(
self.renderer_ref.as_obj(),
JMethodID::from(self.mid_render_frame),
signature::JavaType::Primitive(signature::Primitive::Void),
&[JValue::from(self.frame_buffer_ref.as_obj())],
)
.expect("failed to call renderFrame");
}
}
struct Keypad {
keypad_ref: GlobalRef,
mid_get_key_state: jmethodID,
}
impl Keypad {
fn new(env: &JNIEnv, keypad_obj: JObject) -> Keypad {
let keypad_ref = env
.new_global_ref(keypad_obj)
.expect("failed to create keypad_ref");
let keypad_klass = env
.get_object_class(keypad_ref.as_obj())
.expect("failed to create keypad class");
let mid_get_key_state = env
.get_method_id(keypad_klass, "getKeyState", "()I")
.expect("failed to get methodID for getKeyState")
.into_inner();
Keypad {
keypad_ref,
mid_get_key_state,
}
}
#[inline]
fn get_key_state(&self, env: &JNIEnv) -> u16 {
match env.call_method_unchecked(
self.keypad_ref.as_obj(),
JMethodID::from(self.mid_get_key_state),
signature::JavaType::Primitive(signature::Primitive::Int),
&[],
) {
Ok(JValue::Int(key_state)) => key_state as u16,
_ => panic!("failed to call getKeyState"),
}
}
}
#[derive(Debug, PartialEq, Copy, Clone)]
pub enum EmulationState {
Initial,
Pausing,
Paused,
Running(bool),
Stopping,
Stopped,
}
impl Default for EmulationState {
fn default() -> EmulationState {
EmulationState::Initial
}
}
pub struct EmulatorContext {
hwif: Rc<RefCell<Hardware>>,
renderer: Renderer,
audio_player_ref: GlobalRef,
keypad: Keypad,
pub emustate: Mutex<EmulationState>,
pub gba: GameBoyAdvance,
}
impl EmulatorContext {
pub fn native_open_context(
env: &JNIEnv,
bios: jbyteArray,
rom: jbyteArray,
renderer_obj: JObject,
audio_player: JObject,
keypad_obj: JObject,
save_file: JString,
skip_bios: jboolean,
) -> Result<EmulatorContext, String> {
let bios = env
.convert_byte_array(bios)
.map_err(|e| format!("could not get bios buffer, error {}", e))?
.into_boxed_slice();
let rom = env
.convert_byte_array(rom)
.map_err(|e| format!("could not get rom buffer, error {}", e))?
.into_boxed_slice();
let save_file: String = env
.get_string(save_file)
.map_err(|_| String::from("could not get save path"))?
.into();
let gamepak = GamepakBuilder::new()
.take_buffer(rom)
.save_path(&Path::new(&save_file))
.build()
.map_err(|e| format!("failed to load rom, gba result: {:?}", e))?;
info!("Loaded ROM file {:?}", gamepak.header);
info!("Creating renderer");
let renderer = Renderer::new(env, renderer_obj)?;
info!("Creating GBA Instance");
let hw = Rc::new(RefCell::new(Hardware {
sample_rate: audio::util::get_sample_rate(env, audio_player),
audio_producer: None,
key_state: 0xffff,
}));
let mut gba = GameBoyAdvance::new(bios, gamepak, hw.clone(), hw.clone());
if skip_bios != 0 {
info!("skipping bios");
gba.skip_bios();
}
info!("creating keypad");
let keypad = Keypad::new(env, keypad_obj);
info!("creating context");
let audio_player_ref = env.new_global_ref(audio_player).unwrap();
let context = EmulatorContext {
gba,
keypad,
renderer,
audio_player_ref,
emustate: Mutex::new(EmulationState::default()),
hwif: hw.clone(),
};
Ok(context)
}
pub fn native_open_saved_state(
env: &JNIEnv,
state: jbyteArray,
renderer_obj: JObject,
audio_player: JObject,
keypad_obj: JObject,
) -> Result<EmulatorContext, String> {
let state = env
.convert_byte_array(state)
.map_err(|e| format!("could not get state buffer, error {}", e))?;
let renderer = Renderer::new(env, renderer_obj)?;
let hw = Rc::new(RefCell::new(Hardware {
sample_rate: audio::util::get_sample_rate(env, audio_player),
audio_producer: None,
key_state: 0xffff,
}));
let gba =
GameBoyAdvance::from_saved_state(&state, hw.clone(), hw.clone()).map_err(|e| {
format!(
"failed to create GameBoyAdvance from saved state, error {:?}",
e
)
})?;
let keypad = Keypad::new(env, keypad_obj);
let audio_player_ref = env.new_global_ref(audio_player).unwrap();
Ok(EmulatorContext {
gba,
keypad,
renderer,
audio_player_ref,
emustate: Mutex::new(EmulationState::default()),
hwif: hw.clone(),
})
}
fn render_video(&mut self, env: &JNIEnv) {
self.renderer.render_frame(env, self.gba.get_frame_buffer());
}
/// Lock the emulation loop in order to perform updates to the struct
pub fn lock_and_get_gba(&mut self) -> (MutexGuard<EmulationState>, &mut GameBoyAdvance) {
(self.emustate.lock().unwrap(), &mut self.gba)
}
/// Run the emulation main loop
pub fn native_run(&mut self, env: &JNIEnv) -> Result<(), jni::errors::Error> {
const FRAME_TIME: Duration = Duration::from_nanos(1_000_000_000u64 / 60);
// Set the state to running
*self.emustate.lock().unwrap() = EmulationState::Running(false);
// Extract current JVM
let jvm = env.get_java_vm().unwrap();
// Instanciate an audio player connector
let audio_connector = AudioJNIConnector::new(env, self.audio_player_ref.as_obj());
// Create a ringbuffer between the emulator and the audio thread
let (prod, cons) = AudioRingBuffer::new_with_capacity(audio_connector.sample_count).split();
// Store the ringbuffer producer in the emulator
self.hwif.borrow_mut().audio_producer = Some(prod);
// Spawn the audio worker thread, give it the audio connector, jvm and ringbuffer consumer
let (audio_thread_handle, audio_thread_tx) =
audio::thread::spawn_audio_worker_thread(audio_connector, jvm, cons);
info!("starting main emulation loop");
// let mut fps_counter = FpsCounter::default();
'running: loop {
let emustate = *self.emustate.lock().unwrap();
let limiter = match emustate {
EmulationState::Initial => unsafe { std::hint::unreachable_unchecked() },
EmulationState::Stopped => unsafe { std::hint::unreachable_unchecked() },
EmulationState::Pausing => {
info!("emulation pause requested");
*self.emustate.lock().unwrap() = EmulationState::Paused;
continue;
}
EmulationState::Paused => continue,
EmulationState::Stopping => break 'running,
EmulationState::Running(turbo) => !turbo,
};
let start_time = Instant::now();
// check key state
self.hwif.borrow_mut().key_state = self.keypad.get_key_state(env);
// run frame
self.gba.frame();
// render video
self.render_video(env);
// request audio worker to render the audio now
audio_thread_tx
.send(AudioThreadCommand::RenderAudio)
.unwrap();
// if let Some(fps) = fps_counter.tick() {
// info!("FPS {}", fps);
// }
if limiter {
let time_passed = start_time.elapsed();
let delay = FRAME_TIME.checked_sub(time_passed);
match delay {
None => {}
Some(delay) => {
std::thread::sleep(delay);
}
}
}
}
info!("stopping, terminating audio worker");
audio_thread_tx.send(AudioThreadCommand::Terminate).unwrap(); // we surely have an endpoint, so it will work
info!("waiting for audio worker to complete");
let audio_connector = audio_thread_handle.join().unwrap();
info!("audio worker terminated");
audio_connector.pause(env);
self.hwif.borrow_mut().audio_producer = None;
*self.emustate.lock().unwrap() = EmulationState::Stopped;
Ok(())
}
pub fn native_get_framebuffer(&mut self, env: &JNIEnv) -> jintArray {
let fb = env.new_int_array(240 * 160).unwrap();
self.pause();
unsafe {
env.set_int_array_region(
fb,
0,
std::mem::transmute::<&[u32], &[i32]>(self.gba.get_frame_buffer()),
)
.unwrap();
}
self.resume();
fb
}
pub fn pause(&mut self) {
*self.emustate.lock().unwrap() = EmulationState::Pausing;
while *self.emustate.lock().unwrap() != EmulationState::Paused {
info!("awaiting pause...")
}
}
pub fn resume(&mut self) {
*self.emustate.lock().unwrap() = EmulationState::Running(false);
}
pub fn set_turbo(&mut self, turbo: bool) {
*self.emustate.lock().unwrap() = EmulationState::Running(turbo);
}
pub fn request_stop(&mut self) {
if EmulationState::Stopped != *self.emustate.lock().unwrap() {
*self.emustate.lock().unwrap() = EmulationState::Stopping;
}
}
pub fn is_stopped(&self) -> bool {
*self.emustate.lock().unwrap() == EmulationState::Stopped
}
}

334
bindings/rustboyadvance-jni/src/lib.rs
View file

@ -1,12 +1,12 @@
mod audio;
mod emulator;
/// JNI Bindings for rustboyadvance
///
mod rom_helper;
use std::cell::RefCell;
use emulator::EmulatorContext;
use std::os::raw::c_void;
use std::path::Path;
use std::rc::Rc;
use std::sync::{Mutex, MutexGuard};
use jni::objects::*;
use jni::sys::*;
@ -21,112 +21,12 @@ use android_log;
use env_logger;
use rustboyadvance_core::prelude::*;
use rustboyadvance_core::util::audio::AudioRingBuffer;
use rustboyadvance_core::StereoSample;
struct Hardware {
jvm: JavaVM,
frame_buffer_global_ref: GlobalRef,
audio_buffer: AudioRingBuffer,
key_state: u16,
}
impl VideoInterface for Hardware {
fn render(&mut self, buffer: &[u32]) {
let env = self.jvm.get_env().unwrap();
unsafe {
env.set_int_array_region(
self.frame_buffer_global_ref.as_obj().into_inner(),
0,
std::mem::transmute::<&[u32], &[i32]>(buffer),
)
.unwrap();
}
}
}
impl AudioInterface for Hardware {
fn push_sample(&mut self, sample: StereoSample<i16>) {
if self.audio_buffer.prod.push(sample.0).is_err() {
warn!("failed to push audio sample");
}
if self.audio_buffer.prod.push(sample.1).is_err() {
warn!("failed to push audio sample");
}
}
}
impl InputInterface for Hardware {
fn poll(&mut self) -> u16 {
self.key_state
}
}
struct Context {
hwif: Rc<RefCell<Hardware>>,
gba: GameBoyAdvance,
}
static mut DID_LOAD: bool = false;
const NATIVE_EXCEPTION_CLASS: &'static str =
"com/mrmichel/rustboyadvance/EmulatorBindings/NativeBindingException";
unsafe fn internal_open_context(
env: &JNIEnv,
bios: jbyteArray,
rom: jbyteArray,
frame_buffer: jintArray,
save_file: JString,
skip_bios: jboolean,
) -> Result<Context, String> {
let bios = env
.convert_byte_array(bios)
.map_err(|e| format!("could not get bios buffer, error {}", e))?
.into_boxed_slice();
let rom = env
.convert_byte_array(rom)
.map_err(|e| format!("could not get rom buffer, error {}", e))?
.into_boxed_slice();
let save_file: String = env
.get_string(save_file)
.map_err(|_| String::from("could not get save path"))?
.into();
let gamepak = GamepakBuilder::new()
.take_buffer(rom)
.save_path(&Path::new(&save_file))
.build()
.map_err(|e| format!("failed to load rom, gba result: {:?}", e))?;
info!("Loaded ROM file {:?}", gamepak.header);
let frame_buffer_global_ref = env
.new_global_ref(JObject::from(frame_buffer))
.map_err(|e| format!("failed to add new global ref, error: {:?}", e))?;
let hw = Hardware {
jvm: env.get_java_vm().unwrap(),
frame_buffer_global_ref: frame_buffer_global_ref,
audio_buffer: AudioRingBuffer::new(),
key_state: 0xffff,
};
let hw = Rc::new(RefCell::new(hw));
let mut gba = GameBoyAdvance::new(bios, gamepak, hw.clone(), hw.clone(), hw.clone());
if skip_bios != 0 {
debug!("skipping bios");
gba.skip_bios();
}
debug!("creating context");
let context = Context {
gba: gba,
hwif: hw.clone(),
};
Ok(context)
}
fn save_state(env: &JNIEnv, gba: &mut GameBoyAdvance) -> Result<jbyteArray, String> {
let saved_state = gba
.save_state()
@ -149,8 +49,9 @@ fn load_state(env: &JNIEnv, gba: &mut GameBoyAdvance, state: jbyteArray) -> Resu
pub mod bindings {
use super::*;
unsafe fn lock_ctx<'a>(ctx: jlong) -> MutexGuard<'a, Context> {
(*(ctx as *mut Mutex<Context>)).lock().unwrap()
#[inline(always)]
unsafe fn cast_ctx<'a>(ctx: jlong) -> &'a mut EmulatorContext {
&mut (*(ctx as *mut EmulatorContext))
}
#[no_mangle]
@ -177,12 +78,23 @@ pub mod bindings {
_obj: JClass,
bios: jbyteArray,
rom: jbyteArray,
frame_buffer: jintArray,
renderer_obj: JObject,
audio_player_obj: JObject,
keypad_obj: JObject,
save_file: JString,
skip_bios: jboolean,
) -> jlong {
match internal_open_context(&env, bios, rom, frame_buffer, save_file, skip_bios) {
Ok(ctx) => Box::into_raw(Box::new(Mutex::new(ctx))) as jlong,
match EmulatorContext::native_open_context(
&env,
bios,
rom,
renderer_obj,
audio_player_obj,
keypad_obj,
save_file,
skip_bios,
) {
Ok(ctx) => Box::into_raw(Box::new(ctx)) as jlong,
Err(msg) => {
env.throw_new(NATIVE_EXCEPTION_CLASS, msg).unwrap();
-1
@ -190,50 +102,23 @@ pub mod bindings {
}
}
fn internal_open_saved_state(
env: &JNIEnv,
state: jbyteArray,
frame_buffer: jintArray,
) -> Result<Context, String> {
let state = env
.convert_byte_array(state)
.map_err(|e| format!("could not get state buffer, error {}", e))?;
let frame_buffer_global_ref = env
.new_global_ref(JObject::from(frame_buffer))
.map_err(|e| format!("failed to add new global ref, error: {:?}", e))?;
let hw = Hardware {
jvm: env.get_java_vm().unwrap(),
frame_buffer_global_ref: frame_buffer_global_ref,
audio_buffer: AudioRingBuffer::new(),
key_state: 0xffff,
};
let hw = Rc::new(RefCell::new(hw));
let gba = GameBoyAdvance::from_saved_state(&state, hw.clone(), hw.clone(), hw.clone())
.map_err(|e| {
format!(
"failed to create GameBoyAdvance from saved state, error {:?}",
e
)
})?;
Ok(Context {
gba: gba,
hwif: hw.clone(),
})
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_openSavedState(
env: JNIEnv,
_obj: JClass,
state: jbyteArray,
frame_buffer: jintArray,
renderer_obj: JObject,
audio_player_obj: JObject,
keypad_obj: JObject,
) -> jlong {
match internal_open_saved_state(&env, state, frame_buffer) {
Ok(ctx) => Box::into_raw(Box::new(Mutex::new(ctx))) as jlong,
match EmulatorContext::native_open_saved_state(
&env,
state,
renderer_obj,
audio_player_obj,
keypad_obj,
) {
Ok(ctx) => Box::into_raw(Box::new(ctx)) as jlong,
Err(msg) => {
env.throw_new(NATIVE_EXCEPTION_CLASS, msg).unwrap();
-1
@ -243,58 +128,90 @@ pub mod bindings {
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_closeEmulator(
env: JNIEnv,
_obj: JClass,
ctx: jlong,
) {
info!("destroying context {:#x}", ctx);
// consume the wrapped content
let _ = Box::from_raw(ctx as *mut Mutex<Context>);
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_runFrame(
env: JNIEnv,
_obj: JClass,
ctx: jlong,
frame_buffer: jintArray,
) {
let mut ctx = lock_ctx(ctx);
ctx.gba.frame();
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_collectAudioSamples(
env: JNIEnv,
_obj: JClass,
ctx: jlong,
) -> jshortArray {
let ctx = lock_ctx(ctx);
let mut hw = ctx.hwif.borrow_mut();
let mut samples = Vec::with_capacity(1024);
while let Some(sample) = hw.audio_buffer.cons.pop() {
samples.push(sample);
}
let arr = env.new_short_array(samples.len() as jsize).unwrap();
env.set_short_array_region(arr, 0, &samples).unwrap();
return arr;
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_setKeyState(
_env: JNIEnv,
_obj: JClass,
ctx: jlong,
key_state: jint,
) {
let mut ctx = lock_ctx(ctx);
ctx.hwif.borrow_mut().key_state = key_state as u16;
info!("waiting for emulation thread to stop");
{
let ctx = cast_ctx(ctx);
ctx.request_stop();
while !ctx.is_stopped() {}
}
info!("destroying context {:#x}", ctx);
// consume the wrapped content
let _ = Box::from_raw(ctx as *mut EmulatorContext);
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_runMainLoop(
env: JNIEnv,
_obj: JClass,
ctx: jlong,
) {
let ctx = cast_ctx(ctx);
match ctx.native_run(&env) {
Ok(_) => {}
Err(err) => {
env.throw_new(NATIVE_EXCEPTION_CLASS, format!("Error: {:?}", err))
.unwrap();
}
}
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_pause(
_env: JNIEnv,
_obj: JClass,
ctx: jlong,
) {
let ctx = cast_ctx(ctx);
ctx.pause();
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_resume(
_env: JNIEnv,
_obj: JClass,
ctx: jlong,
) {
let ctx = cast_ctx(ctx);
ctx.resume();
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_setTurbo(
_env: JNIEnv,
_obj: JClass,
ctx: jlong,
turbo: jboolean,
) {
info!("setTurbo called!");
let ctx = cast_ctx(ctx);
ctx.set_turbo(turbo != 0);
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_stop(
_env: JNIEnv,
_obj: JClass,
ctx: jlong,
) {
let ctx = cast_ctx(ctx);
ctx.request_stop();
while !ctx.is_stopped() {}
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_EmulatorBindings_getFrameBuffer(
env: JNIEnv,
_obj: JClass,
ctx: jlong,
) -> jintArray {
let ctx = cast_ctx(ctx);
ctx.native_get_framebuffer(&env)
}
#[no_mangle]
@ -303,9 +220,14 @@ pub mod bindings {
_obj: JClass,
ctx: jlong,
) -> jbyteArray {
let mut ctx = lock_ctx(ctx);
match save_state(&env, &mut ctx.gba) {
let ctx = cast_ctx(ctx);
ctx.pause();
let (_lock, gba) = ctx.lock_and_get_gba();
match save_state(&env, gba) {
Ok(result) => {
drop(_lock);
drop(gba);
ctx.resume();
return result;
}
Err(msg) => {
@ -322,9 +244,15 @@ pub mod bindings {
ctx: jlong,
state: jbyteArray,
) {
let mut ctx = lock_ctx(ctx);
match load_state(&env, &mut ctx.gba, state) {
Ok(_) => {}
let ctx = cast_ctx(ctx);
ctx.pause();
let (_lock, gba) = ctx.lock_and_get_gba();
match load_state(&env, gba, state) {
Ok(_) => {
drop(_lock);
drop(gba);
ctx.resume();
}
Err(msg) => env.throw_new(NATIVE_EXCEPTION_CLASS, msg).unwrap(),
}
}
@ -335,7 +263,7 @@ pub mod bindings {
_obj: JClass,
ctx: jlong,
) -> jstring {
let ctx = lock_ctx(ctx);
let ctx = cast_ctx(ctx);
env.new_string(ctx.gba.get_game_title())
.unwrap()
.into_inner()
@ -347,7 +275,7 @@ pub mod bindings {
_obj: JClass,
ctx: jlong,
) -> jstring {
let ctx = lock_ctx(ctx);
let ctx = cast_ctx(ctx);
env.new_string(ctx.gba.get_game_code())
.unwrap()
.into_inner()
@ -359,7 +287,7 @@ pub mod bindings {
_obj: JClass,
ctx: jlong,
) {
let ctx = lock_ctx(ctx);
let ctx = cast_ctx(ctx);
info!("CPU LOG: {:#x?}", ctx.gba.cpu);
}
}

18
bindings/rustboyadvance-jni/src/rom_helper.rs
View file

@ -9,22 +9,26 @@ fn parse_rom_header(env: &JNIEnv, barr: jbyteArray) -> cartridge::header::Cartri
cartridge::header::parse(&rom_data).unwrap()
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_RomHelper_getGameCode(
mod bindings {
use super::*;
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_RomHelper_getGameCode(
env: JNIEnv,
_obj: JClass,
rom_data: jbyteArray,
) -> jstring {
) -> jstring {
let header = parse_rom_header(&env, rom_data);
env.new_string(header.game_code).unwrap().into_inner()
}
}
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_RomHelper_getGameTitle(
#[no_mangle]
pub unsafe extern "C" fn Java_com_mrmichel_rustboyadvance_RomHelper_getGameTitle(
env: JNIEnv,
_obj: JClass,
rom_data: jbyteArray,
) -> jstring {
) -> jstring {
let header = parse_rom_header(&env, rom_data);
env.new_string(header.game_title).unwrap().into_inner()
}
}

2
core/src/lib.rs
View file

@ -76,7 +76,7 @@ pub trait AudioInterface {
/// Sample should be normilized to siged 16bit values
/// Note: It is not guarentied that the sample will be played
#[allow(unused_variables)]
fn push_sample(&mut self, samples: StereoSample<i16>) {}
fn push_sample(&mut self, samples: &[i16]) {}
}
pub trait InputInterface {

4
core/src/sound/mod.rs
View file

@ -349,10 +349,10 @@ impl SoundController {
let mut audio = audio_device.borrow_mut();
self.output_buffer.drain(..).for_each(|(left, right)| {
audio.push_sample((
audio.push_sample(&[
(left.round() as i16) * (std::i16::MAX / 512),
(right.round() as i16) * (std::i16::MAX / 512),
));
]);
});
}
if self.cycles_per_sample < *cycles_to_next_event {

16
core/src/util.rs
View file

@ -132,16 +132,20 @@ macro_rules! host_breakpoint {
}
pub mod audio {
use ringbuf::{Consumer, Producer, RingBuffer};
pub use ringbuf::{Consumer, Producer, RingBuffer};
pub struct AudioRingBuffer {
pub prod: Producer<i16>,
pub cons: Consumer<i16>,
prod: Producer<i16>,
cons: Consumer<i16>,
}
impl AudioRingBuffer {
pub fn new() -> AudioRingBuffer {
let rb = RingBuffer::new(4096 * 2);
AudioRingBuffer::new_with_capacity(2 * 4096)
}
pub fn new_with_capacity(capacity: usize) -> AudioRingBuffer {
let rb = RingBuffer::new(capacity);
let (prod, cons) = rb.split();
AudioRingBuffer { prod, cons }
@ -154,6 +158,10 @@ pub mod audio {
pub fn consumer(&mut self) -> &mut Consumer<i16> {
&mut self.cons
}
pub fn split(self) -> (Producer<i16>, Consumer<i16>) {
(self.prod, self.cons)
}
}
}

70
platform/android/app/src/main/java/com/mrmichel/rustboyadvance/EmulatorBindings.java
View file

@ -9,62 +9,65 @@ public class EmulatorBindings {
System.loadLibrary("rustboyadvance_jni");
}
public class NativeBindingException extends Exception {
public NativeBindingException(String errorMessage) {
super(errorMessage);
}
}
/**
* Open a new emulator context
*
* @param bios bytearray of the GBA bios
* @param rom bytearray of the rom to run
* @param frameBuffer frameBuffer render target
* @param renderer renderer instance
* @param audioPlayer audio player instance
* @param keypad Keypad instance
* @param save_name name of the save file TODO remove this
* @param skipBios skip bios
* @return the emulator context to use pass to other methods in this class
* @throws NativeBindingException
*/
public static native long openEmulator(byte[] bios, byte[] rom, int[] frameBuffer, String save_name, boolean skipBios) throws NativeBindingException;
public static native long openEmulator(byte[] bios, byte[] rom, IFrameRenderer renderer, IAudioPlayer audioPlayer, Keypad keypad, String save_name, boolean skipBios) throws NativeBindingException;
/**
* Open a new emulator context from a saved state buffer
* @param savedState
* @param frameBuffer
*
* @param savedState saved state buffer
* @param renderer renderer instance
* @param audioPlayer audio player instance
* @param keypad Keypad instance
* @return
* @throws NativeBindingException
*/
public static native long openSavedState(byte[] savedState, int[] frameBuffer) throws NativeBindingException;
/**
* Make the emulator boot directly into the cartridge
* @param ctx
* @throws NativeBindingException
*/
public static native void skipBios(long ctx) throws NativeBindingException;
public static native long openSavedState(byte[] savedState, IFrameRenderer renderer, IAudioPlayer audioPlayer, Keypad keypad) throws NativeBindingException;
/**
* Destroys the emulator instance
* should be put in a finalizer or else the emulator context may leak.
*
* @param ctx
*/
public static native void closeEmulator(long ctx);
/**
* Runs the emulation for a single frame.
* Run the emulation thread
*
* @param ctx
* @param frame_buffer will be filled with the frame buffer to render
*/
public static native void runFrame(long ctx, int[] frame_buffer);
public static native void runMainLoop(long ctx);
/**
* Collect pending audio samples
* @param ctx
* @return sample buffer
*/
public static native short[] collectAudioSamples(long ctx);
public static native void pause(long ctx);
public static native void resume(long ctx);
public static native void setTurbo(long ctx, boolean turbo);
public static native void stop(long ctx);
public static native int[] getFrameBuffer(long ctx);
// /**
// * Runs the emulation for a single frame.
// * @param ctx
// * @param frame_buffer will be filled with the frame buffer to render
// */
// public static native void runFrame(long ctx, int[] frame_buffer);
/**
* @param ctx
@ -78,9 +81,9 @@ public class EmulatorBindings {
*/
public static native String getGameCode(long ctx);
/**
* Sets the keystate
*
* @param keyState
*/
public static native void setKeyState(long ctx, int keyState);
@ -105,7 +108,14 @@ public class EmulatorBindings {
/**
* Logs the emulator state
*
* @return non-zero value on failure
*/
public static native void log(long ctx);
public class NativeBindingException extends Exception {
public NativeBindingException(String errorMessage) {
super(errorMessage);
}
}
}

15
platform/android/app/src/main/java/com/mrmichel/rustboyadvance/IAudioPlayer.java Normal file
View file

@ -0,0 +1,15 @@
package com.mrmichel.rustboyadvance;
public interface IAudioPlayer {
int audioWrite(short[] buffer, int offsetInShorts, int sizeInShorts);
void pause();
void play();
int getSampleCount();
int getSampleRate();
int availableBufferSize();
}

5
platform/android/app/src/main/java/com/mrmichel/rustboyadvance/IFrameRenderer.java Normal file
View file

@ -0,0 +1,5 @@
package com.mrmichel.rustboyadvance;
public interface IFrameRenderer {
void renderFrame(int[] framebuffer);
}

28
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/core/Keypad.java → platform/android/app/src/main/java/com/mrmichel/rustboyadvance/Keypad.java
View file

@ -1,4 +1,4 @@
package com.mrmichel.rustdroid_emu.core;
package com.mrmichel.rustboyadvance;
public class Keypad {
private int keyState;
@ -11,6 +11,18 @@ public class Keypad {
this.keyState = 0xffff;
}
public void onKeyDown(Key key) {
this.keyState = this.keyState & ~(1 << key.keyBit);
}
public void onKeyUp(Key key) {
this.keyState = this.keyState | (1 << key.keyBit);
}
public int getKeyState() {
return keyState;
}
public enum Key {
ButtonA(0),
ButtonB(1),
@ -25,20 +37,8 @@ public class Keypad {
private final int keyBit;
private Key(int keyBit) {
Key(int keyBit) {
this.keyBit = keyBit;
}
}
public void onKeyDown(Key key) {
this.keyState = this.keyState & ~(1 << key.keyBit);
}
public void onKeyUp(Key key) {
this.keyState = this.keyState | (1 << key.keyBit);
}
public int getKeyState() {
return keyState;
}
}

89
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/core/AndroidAudioPlayer.java Normal file
View file

@ -0,0 +1,89 @@
package com.mrmichel.rustdroid_emu.core;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioTrack;
import android.os.Build;
import android.util.Log;
import com.mrmichel.rustboyadvance.IAudioPlayer;
/**
* Simple wrapper around the android AudioTrack class that implements IAudioPlayer
*/
public class AndroidAudioPlayer implements IAudioPlayer {
private static final String TAG = "AndroidAudioPlayer";
private static final int BUFFER_SIZE_IN_BYTES = 8192;
private static int SAMPLE_RATE_HZ = 44100;
private AudioTrack audioTrack;
public AndroidAudioPlayer() {
if (Build.VERSION.SDK_INT >= 23) {
AudioTrack.Builder audioTrackBuilder = new AudioTrack.Builder()
.setAudioFormat(new AudioFormat.Builder()
.setEncoding(AudioFormat.ENCODING_PCM_16BIT)
.setSampleRate(SAMPLE_RATE_HZ)
.setChannelMask(AudioFormat.CHANNEL_IN_STEREO | AudioFormat.CHANNEL_OUT_STEREO)
.build()
)
.setBufferSizeInBytes(AndroidAudioPlayer.BUFFER_SIZE_IN_BYTES)
.setTransferMode(AudioTrack.MODE_STREAM);
if (Build.VERSION.SDK_INT >= 26) {
audioTrackBuilder.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_LOW_LATENCY);
}
this.audioTrack = audioTrackBuilder.build();
} else {
this.audioTrack = new AudioTrack(
AudioManager.STREAM_MUSIC,
SAMPLE_RATE_HZ,
AudioFormat.CHANNEL_IN_STEREO | AudioFormat.CHANNEL_OUT_STEREO,
AudioFormat.ENCODING_PCM_16BIT,
AndroidAudioPlayer.BUFFER_SIZE_IN_BYTES,
AudioTrack.MODE_STREAM);
}
Log.d(TAG, "sampleCount = " + this.getSampleCount());
}
@Override
public int audioWrite(short[] buffer, int offsetInShorts, int sizeInShorts) {
if (Build.VERSION.SDK_INT >= 23) {
return this.audioTrack.write(buffer, offsetInShorts, sizeInShorts, AudioTrack.WRITE_NON_BLOCKING);
} else {
// Native bindings will do its best to make sure this doesn't block anyway
return this.audioTrack.write(buffer, offsetInShorts, sizeInShorts);
}
}
@Override
public void pause() {
this.audioTrack.pause();
}
@Override
public void play() {
this.audioTrack.play();
}
@Override
public int getSampleCount() {
if (Build.VERSION.SDK_INT >= 23) {
return this.audioTrack.getBufferSizeInFrames();
} else {
return BUFFER_SIZE_IN_BYTES / 2;
}
}
@Override
public int getSampleRate() {
return this.audioTrack.getSampleRate();
}
@Override
public int availableBufferSize() {
return 2;
}
}

47
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/core/AudioThread.java
View file

@ -1,47 +0,0 @@
package com.mrmichel.rustdroid_emu.core;
import android.media.AudioTrack;
public class AudioThread extends Thread {
AudioTrack audioTrack;
Emulator emulator;
boolean enabled;
boolean stopping;
public AudioThread(AudioTrack audioTrack, Emulator emulator) {
super();
this.audioTrack = audioTrack;
this.emulator = emulator;
this.enabled = true;
this.stopping = false;
}
public void setStopping(boolean stopping) {
this.stopping = stopping;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public boolean isStopping() {
return stopping;
}
public boolean isEnabled() {
return enabled;
}
@Override
public void run() {
super.run();
while (!stopping) {
if (enabled) {
short[] samples = emulator.collectAudioSamples();
audioTrack.write(samples, 0, samples.length);
}
}
}
}

76
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/core/Emulator.java
View file

@ -1,29 +1,27 @@
package com.mrmichel.rustdroid_emu.core;
import com.mrmichel.rustboyadvance.EmulatorBindings;
import com.mrmichel.rustboyadvance.IFrameRenderer;
import com.mrmichel.rustboyadvance.Keypad;
public class Emulator {
public class EmulatorException extends Exception {
public EmulatorException(String errorMessage) {
super(errorMessage);
}
}
public Keypad keypad;
/// context received by the native binding
private long ctx = -1;
private int[] frameBuffer;
public Keypad keypad;
public Emulator() {
this.frameBuffer = new int[240 * 160];
private AndroidAudioPlayer audioPlayer;
private IFrameRenderer frameRenderer;
public Emulator(IFrameRenderer frameRenderer, AndroidAudioPlayer audioPlayer) {
this.keypad = new Keypad();
this.frameRenderer = frameRenderer;
this.audioPlayer = audioPlayer;
}
public Emulator(long ctx) {
public Emulator(long ctx, IFrameRenderer frameRenderer, AndroidAudioPlayer audioPlayer) {
this.ctx = ctx;
this.frameBuffer = new int[240 * 160];
this.frameRenderer = frameRenderer;
this.audioPlayer = audioPlayer;
this.keypad = new Keypad();
}
@ -35,29 +33,38 @@ public class Emulator {
return ctx;
}
public void runMainLoop() {
EmulatorBindings.runMainLoop(this.ctx);
}
public void pause() {
EmulatorBindings.pause(this.ctx);
this.audioPlayer.pause();
}
public void resume() {
EmulatorBindings.resume(this.ctx);
this.audioPlayer.play();
}
public void setTurbo(boolean turbo) {
EmulatorBindings.setTurbo(ctx, turbo);
}
public void stop() {
EmulatorBindings.stop(this.ctx);
this.audioPlayer.pause();
}
public int[] getFrameBuffer() {
return frameBuffer;
return EmulatorBindings.getFrameBuffer(this.ctx);
}
public synchronized void runFrame() {
EmulatorBindings.setKeyState(ctx, keypad.getKeyState());
EmulatorBindings.runFrame(ctx, frameBuffer);
}
public synchronized short[] collectAudioSamples() {
return EmulatorBindings.collectAudioSamples(ctx);
}
public synchronized void setKeyState(int keyState) {
EmulatorBindings.setKeyState(this.ctx, keyState);
}
public synchronized byte[] saveState() throws EmulatorBindings.NativeBindingException {
return EmulatorBindings.saveState(this.ctx);
}
public synchronized void loadState(byte[] state) throws EmulatorBindings.NativeBindingException {
if (ctx != -1) {
EmulatorBindings.loadState(this.ctx, state);
@ -66,13 +73,12 @@ public class Emulator {
}
}
public synchronized void open(byte[] bios, byte[] rom, String saveName, boolean skipBios) throws EmulatorBindings.NativeBindingException {
this.ctx = EmulatorBindings.openEmulator(bios, rom, this.frameBuffer, saveName, skipBios);
this.ctx = EmulatorBindings.openEmulator(bios, rom, this.frameRenderer, this.audioPlayer, this.keypad, saveName, skipBios);
}
public synchronized void openSavedState(byte[] savedState) throws EmulatorBindings.NativeBindingException {
this.ctx = EmulatorBindings.openSavedState(savedState, this.frameBuffer);
this.ctx = EmulatorBindings.openSavedState(savedState, this.frameRenderer, this.audioPlayer, this.keypad);
}
public synchronized void close() {
@ -112,4 +118,10 @@ public class Emulator {
public synchronized void log() {
EmulatorBindings.log(this.ctx);
}
public class EmulatorException extends Exception {
public EmulatorException(String errorMessage) {
super(errorMessage);
}
}
}

3
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/core/SnapshotManager.java
View file

@ -10,7 +10,6 @@ import android.graphics.BitmapFactory;
import com.mrmichel.rustdroid_emu.Util;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.sql.Timestamp;
import java.util.ArrayList;
@ -74,7 +73,7 @@ public class SnapshotManager {
SQLiteDatabase db = dbHelper.getWritableDatabase();
File file = snapshot.getFile();
db.delete(dbHelper.TABLE_NAME, "dataFile = '" + file.toString() + "'", null);
db.delete(SnapshotDatabaseHelper.TABLE_NAME, "dataFile = '" + file.toString() + "'", null);
file.delete();
}

47
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/ui/EmulationThread.java
View file

@ -1,43 +1,35 @@
package com.mrmichel.rustdroid_emu.ui;
import android.util.Log;
import com.mrmichel.rustdroid_emu.core.Emulator;
public class EmulationThread extends Thread {
private static final String TAG = "EmulationThread";
public static final long NANOSECONDS_PER_MILLISECOND = 1000000;
public static final long FRAME_TIME = 1000000000 / 60;
private Emulator emulator;
private ScreenView screenView;
private boolean turbo;
private boolean running;
private boolean stopping;
public EmulationThread(Emulator emulator, ScreenView screenView) {
this.emulator = emulator;
this.screenView = screenView;
this.running = true;
}
public void setStopping(boolean stopping) {
this.stopping = stopping;
this.running = false;
}
public void pauseEmulation() {
running = false;
this.emulator.pause();
}
public void resumeEmulation() {
running = true;
this.emulator.resume();
}
public void setTurbo(boolean turbo) {
this.turbo = turbo;
}
public boolean isTurbo() { return turbo; }
@Override
public void run() {
super.run();
@ -45,27 +37,12 @@ public class EmulationThread extends Thread {
// wait until renderer is ready
while (!screenView.getRenderer().isReady());
while (!stopping) {
if (running) {
long startTimer = System.nanoTime();
emulator.runFrame();
if (!turbo) {
long currentTime = System.nanoTime();
long timePassed = currentTime - startTimer;
while (!emulator.isOpen());
long delay = FRAME_TIME - timePassed;
if (delay > 0) {
try {
Thread.sleep(delay / NANOSECONDS_PER_MILLISECOND);
} catch (Exception e) {
}
}
}
screenView.updateFrame(emulator.getFrameBuffer());
}
}
running = true;
emulator.runMainLoop();
Log.d(TAG, "Native runMainLoop returned!");
running = false;
}

66
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/ui/EmulatorActivity.java
View file

@ -1,6 +1,5 @@
package com.mrmichel.rustdroid_emu.ui;
import android.app.Activity;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
@ -8,7 +7,6 @@ import android.graphics.Bitmap;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioTrack;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
@ -28,11 +26,11 @@ import androidx.appcompat.app.AppCompatActivity;
import androidx.preference.PreferenceManager;
import com.mrmichel.rustboyadvance.EmulatorBindings;
import com.mrmichel.rustboyadvance.Keypad;
import com.mrmichel.rustdroid_emu.R;
import com.mrmichel.rustdroid_emu.Util;
import com.mrmichel.rustdroid_emu.core.AudioThread;
import com.mrmichel.rustdroid_emu.core.AndroidAudioPlayer;
import com.mrmichel.rustdroid_emu.core.Emulator;
import com.mrmichel.rustdroid_emu.core.Keypad;
import com.mrmichel.rustdroid_emu.core.RomManager;
import com.mrmichel.rustdroid_emu.core.Snapshot;
import com.mrmichel.rustdroid_emu.core.SnapshotManager;
@ -42,7 +40,6 @@ import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
public class EmulatorActivity extends AppCompatActivity implements View.OnClickListener, View.OnTouchListener {
@ -53,15 +50,12 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
private static final int LOAD_ROM_REQUESTCODE = 123;
private static final int LOAD_SNAPSHOT_REQUESTCODE = 124;
private static int SAMPLE_RATE_HZ = 44100;
private Menu menu;
private RomManager.RomMetadataEntry romMetadata;
private byte[] bios;
private EmulationThread emulationThread;
private AudioThread audioThread;
private AudioTrack audioTrack;
private AndroidAudioPlayer audioPlayer;
private byte[] on_resume_saved_state = null;
private Emulator emulator;
@ -78,7 +72,7 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
if (!isEmulatorRunning()) {
return;
}
emulationThread.setTurbo(((CompoundButton) findViewById(R.id.tbTurbo)).isChecked());
emulator.setTurbo(((CompoundButton) findViewById(R.id.tbTurbo)).isChecked());
}
}
@ -244,18 +238,9 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
}
private void killThreads() {
if (audioThread != null) {
audioThread.setStopping(true);
try {
audioThread.join();
} catch (InterruptedException e) {
Log.e(TAG, "audio thread join interrupted");
}
audioThread = null;
}
if (emulationThread != null) {
try {
emulationThread.setStopping(true);
emulator.stop();
emulationThread.join();
} catch (InterruptedException e) {
Log.e(TAG, "emulation thread join interrupted");
@ -266,12 +251,8 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
private void createThreads() {
emulationThread = new EmulationThread(emulator, screenView);
audioThread = new AudioThread(audioTrack, emulator);
emulationThread.setTurbo(turboButton.isChecked());
emulator.setTurbo(turboButton.isChecked());
emulationThread.start();
audioThread.start();
}
public void onRomLoaded(byte[] rom, String savePath) {
@ -313,7 +294,7 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
outState.putString("saveFile", saveFile.getPath());
outState.putBoolean("turbo", emulationThread.isTurbo());
outState.putBoolean("turbo", false);
} catch (Exception e) {
Util.showAlertDiaglogAndExit(this, e);
@ -328,30 +309,7 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
if (Build.VERSION.SDK_INT >= 23) {
AudioTrack.Builder audioTrackBuilder = new AudioTrack.Builder()
.setAudioFormat(new AudioFormat.Builder()
.setEncoding(AudioFormat.ENCODING_PCM_16BIT)
.setSampleRate(SAMPLE_RATE_HZ)
.setChannelMask(AudioFormat.CHANNEL_IN_STEREO | AudioFormat.CHANNEL_OUT_STEREO)
.build()
)
.setBufferSizeInBytes(4096)
.setTransferMode(AudioTrack.MODE_STREAM);
if (Build.VERSION.SDK_INT >= 26) {
audioTrackBuilder.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_LOW_LATENCY);
}
this.audioTrack = audioTrackBuilder.build();
} else {
this.audioTrack = new AudioTrack(
AudioManager.STREAM_MUSIC,
SAMPLE_RATE_HZ,
AudioFormat.CHANNEL_IN_STEREO | AudioFormat.CHANNEL_OUT_STEREO,
AudioFormat.ENCODING_PCM_16BIT,
4096,
AudioTrack.MODE_STREAM);
}
this.audioTrack.play();
this.audioPlayer = new AndroidAudioPlayer();
findViewById(R.id.bStart).setOnTouchListener(this);
findViewById(R.id.bSelect).setOnTouchListener(this);
@ -370,7 +328,7 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
this.bios = getIntent().getByteArrayExtra("bios");
this.screenView = findViewById(R.id.gba_view);
this.emulator = new Emulator();
this.emulator = new Emulator(this.screenView, this.audioPlayer);
final String saveFilePath;
@ -406,7 +364,7 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
boolean turbo = savedInstanceState.getBoolean("turbo");
turboButton.setPressed(turbo);
emulationThread.setTurbo(turbo);
emulator.setTurbo(turbo);
} catch (Exception e) {
Util.showAlertDiaglogAndExit(thisActivity, e);
@ -481,7 +439,6 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
@Override
protected void onDestroy() {
super.onDestroy();
audioTrack.stop();
pauseEmulation();
killThreads();
}
@ -489,7 +446,6 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
@Override
protected void onPause() {
super.onPause();
audioTrack.stop();
pauseEmulation();
screenView.onPause();
}
@ -499,7 +455,7 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
super.onResume();
screenView.onResume();
resumeEmulation();
audioTrack.play();
audioPlayer.play();
}
public void doSaveSnapshot() {

15
platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/ui/ScreenView.java
View file

@ -7,7 +7,9 @@ import android.util.AttributeSet;
import androidx.preference.PreferenceManager;
public class ScreenView extends GLSurfaceView implements SharedPreferences.OnSharedPreferenceChangeListener {
import com.mrmichel.rustboyadvance.IFrameRenderer;
public class ScreenView extends GLSurfaceView implements SharedPreferences.OnSharedPreferenceChangeListener, IFrameRenderer {
private ScreenRenderer mRenderer;
public ScreenView(Context context) {
@ -33,11 +35,6 @@ public class ScreenView extends GLSurfaceView implements SharedPreferences.OnSha
this.setRenderMode(RENDERMODE_WHEN_DIRTY);
}
public void updateFrame(int[] frameBuffer) {
mRenderer.updateTexture(frameBuffer);
requestRender();
}
public ScreenRenderer getRenderer() {
return mRenderer;
}
@ -49,4 +46,10 @@ public class ScreenView extends GLSurfaceView implements SharedPreferences.OnSha
mRenderer.setColorCorrection(colorCorrection);
}
}
@Override
public void renderFrame(int[] frameBuffer) {
mRenderer.updateTexture(frameBuffer);
requestRender();
}
}

2
platform/rustboyadvance-sdl2/Cargo.toml
View file

@ -7,7 +7,7 @@ edition = "2018"
[dependencies]
rustboyadvance-core = { path = "../../core/", features = ["elf_support"] }
sdl2 = { version = "0.33.0", features = ["image"] }
ringbuf = "0.2.1"
ringbuf = "0.2.2"
bytesize = "1.0.0"
clap = { version = "2.33", features = ["color", "yaml"] }
log = "0.4.8"

4
platform/rustboyadvance-sdl2/src/audio.rs
View file

@ -40,9 +40,9 @@ impl AudioInterface for Sdl2AudioPlayer {
self.freq
}
fn push_sample(&mut self, sample: StereoSample<i16>) {
fn push_sample(&mut self, sample: &[i16]) {
#![allow(unused_must_use)]
self.producer.push(sample);
self.producer.push((sample[0], sample[1]));
}
}

6
platform/rustboyadvance-wasm/src/emulator.rs
View file

@ -70,8 +70,8 @@ impl AudioInterface for Interface {
}
fn push_sample(&mut self, samples: StereoSample<i16>) {
self.audio_ring_buffer.prod.push(samples.0).unwrap();
self.audio_ring_buffer.prod.push(samples.1).unwrap();
self.audio_ring_buffer.producer().push(samples.0).unwrap();
self.audio_ring_buffer.producer().push(samples.1).unwrap();
}
}
@ -170,7 +170,7 @@ impl Emulator {
pub fn collect_audio_samples(&self) -> Result<Float32Array, JsValue> {
let mut interface = self.interface.borrow_mut();
let consumer = &mut interface.audio_ring_buffer.cons;
let consumer = interface.audio_ring_buffer.consumer();
let mut samples = Vec::with_capacity(consumer.len());
while let Some(sample) = consumer.pop() {
samples.push(convert_sample(sample));