core: Start working on a scheduler
A more robust cycle aware event scheduling, to easily implement serial-io, dmg audio channels and improve accuracy. This brings a slight performance hit :/ I also ran dos2unix on some of the files :D Former-commit-id: 62f4ba33e3a083b7976d6512ba6f5720ec493aa0 Former-commit-id: a4b3a92cd1eb156bbe9fd0ef77fbb0e7a45660cb
This commit is contained in:
Michel Heily
MishMish
parent
b68c73819a
commit
0de8a60006
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@ -1,29 +1,29 @@
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pub mod connector;
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pub mod thread;
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pub mod util {
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use jni::objects::{JObject, JValue};
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use jni::signature::{JavaType, Primitive};
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use jni::JNIEnv;
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pub fn get_sample_rate(env: &JNIEnv, audio_player_obj: JObject) -> i32 {
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let audio_player_klass = env.get_object_class(audio_player_obj).unwrap();
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let mid_get_sample_rate = env
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.get_method_id(audio_player_klass, "getSampleRate", "()I")
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.expect("failed to get methodID for getSampleRate");
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let result = env
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.call_method_unchecked(
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audio_player_obj,
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mid_get_sample_rate,
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JavaType::Primitive(Primitive::Int),
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&[],
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)
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.unwrap();
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let sample_rate = match result {
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JValue::Int(sample_rate) => sample_rate as i32,
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_ => panic!("bad return value"),
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};
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return sample_rate;
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}
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}
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pub mod connector;
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pub mod thread;
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pub mod util {
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use jni::objects::{JObject, JValue};
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use jni::signature::{JavaType, Primitive};
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use jni::JNIEnv;
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pub fn get_sample_rate(env: &JNIEnv, audio_player_obj: JObject) -> i32 {
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let audio_player_klass = env.get_object_class(audio_player_obj).unwrap();
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let mid_get_sample_rate = env
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.get_method_id(audio_player_klass, "getSampleRate", "()I")
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.expect("failed to get methodID for getSampleRate");
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let result = env
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.call_method_unchecked(
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audio_player_obj,
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mid_get_sample_rate,
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JavaType::Primitive(Primitive::Int),
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&[],
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)
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.unwrap();
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let sample_rate = match result {
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JValue::Int(sample_rate) => sample_rate as i32,
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_ => panic!("bad return value"),
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};
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return sample_rate;
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}
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}
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@ -1,66 +1,66 @@
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use super::connector::AudioJNIConnector;
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use std::sync::mpsc::{channel, Sender};
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use std::thread;
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use std::thread::JoinHandle;
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use rustboyadvance_core::util::audio::Consumer;
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use jni::JavaVM;
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#[derive(Debug)]
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#[allow(dead_code)]
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pub enum AudioThreadCommand {
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RenderAudio,
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Pause,
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Play,
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Terminate,
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}
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pub(crate) fn spawn_audio_worker_thread(
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audio_connector: AudioJNIConnector,
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jvm: JavaVM,
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mut consumer: Consumer<i16>,
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) -> (JoinHandle<AudioJNIConnector>, Sender<AudioThreadCommand>) {
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let (tx, rx) = channel();
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let handle = thread::spawn(move || {
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info!("[AudioWorker] spawned!");
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info!("[AudioWorker] Attaching JVM");
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let env = jvm.attach_current_thread().unwrap();
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loop {
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let command = rx.recv().unwrap();
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match command {
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AudioThreadCommand::Pause => {
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info!("[AudioWorker] - got {:?} command", command);
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audio_connector.pause(&env);
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}
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AudioThreadCommand::Play => {
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info!("[AudioWorker] - got {:?} command", command);
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audio_connector.play(&env);
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}
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AudioThreadCommand::RenderAudio => {
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let mut samples = [0; 4096 * 2]; // TODO is this memset expansive ?
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let count = consumer.pop_slice(&mut samples);
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audio_connector.write_audio_samples(&env, &samples[0..count]);
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}
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AudioThreadCommand::Terminate => {
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info!("[AudioWorker] - got terminate command!");
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break;
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}
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}
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}
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info!("[AudioWorker] terminating");
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// return the audio connector back
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audio_connector
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});
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(handle, tx)
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}
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use super::connector::AudioJNIConnector;
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use std::sync::mpsc::{channel, Sender};
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use std::thread;
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use std::thread::JoinHandle;
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use rustboyadvance_core::util::audio::Consumer;
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use jni::JavaVM;
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#[derive(Debug)]
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#[allow(dead_code)]
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pub enum AudioThreadCommand {
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RenderAudio,
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Pause,
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Play,
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Terminate,
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}
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pub(crate) fn spawn_audio_worker_thread(
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audio_connector: AudioJNIConnector,
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jvm: JavaVM,
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mut consumer: Consumer<i16>,
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) -> (JoinHandle<AudioJNIConnector>, Sender<AudioThreadCommand>) {
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let (tx, rx) = channel();
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let handle = thread::spawn(move || {
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info!("[AudioWorker] spawned!");
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info!("[AudioWorker] Attaching JVM");
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let env = jvm.attach_current_thread().unwrap();
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loop {
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let command = rx.recv().unwrap();
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match command {
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AudioThreadCommand::Pause => {
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info!("[AudioWorker] - got {:?} command", command);
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audio_connector.pause(&env);
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}
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AudioThreadCommand::Play => {
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info!("[AudioWorker] - got {:?} command", command);
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audio_connector.play(&env);
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}
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AudioThreadCommand::RenderAudio => {
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let mut samples = [0; 4096 * 2]; // TODO is this memset expansive ?
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let count = consumer.pop_slice(&mut samples);
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audio_connector.write_audio_samples(&env, &samples[0..count]);
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}
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AudioThreadCommand::Terminate => {
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info!("[AudioWorker] - got terminate command!");
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break;
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}
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}
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}
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info!("[AudioWorker] terminating");
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// return the audio connector back
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audio_connector
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});
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(handle, tx)
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}
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@ -1,403 +1,403 @@
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use rustboyadvance_core::prelude::*;
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use rustboyadvance_core::util::audio::{AudioRingBuffer, Producer};
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// use rustboyadvance_core::util::FpsCounter;
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use std::cell::RefCell;
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use std::path::Path;
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use std::rc::Rc;
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use std::sync::{Mutex, MutexGuard};
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use std::time::{Duration, Instant};
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use jni::objects::{GlobalRef, JMethodID, JObject, JString, JValue};
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use jni::signature;
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use jni::sys::{jboolean, jbyteArray, jintArray, jmethodID};
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use jni::JNIEnv;
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use crate::audio::{self, connector::AudioJNIConnector, thread::AudioThreadCommand};
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struct Hardware {
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sample_rate: i32,
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audio_producer: Option<Producer<i16>>,
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key_state: u16,
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}
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impl AudioInterface for Hardware {
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fn push_sample(&mut self, samples: &[i16]) {
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if let Some(prod) = &mut self.audio_producer {
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for s in samples.iter() {
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let _ = prod.push(*s);
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}
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} else {
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// The gba is never ran before audio_producer is initialized
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unreachable!()
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}
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}
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fn get_sample_rate(&self) -> i32 {
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self.sample_rate
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}
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}
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impl InputInterface for Hardware {
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fn poll(&mut self) -> u16 {
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self.key_state
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}
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}
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struct Renderer {
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renderer_ref: GlobalRef,
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frame_buffer_ref: GlobalRef,
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mid_render_frame: jmethodID,
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}
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impl Renderer {
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fn new(env: &JNIEnv, renderer_obj: JObject) -> Result<Renderer, String> {
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let renderer_ref = env
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.new_global_ref(renderer_obj)
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.map_err(|e| format!("failed to add new global ref, error: {:?}", e))?;
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let frame_buffer = env
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.new_int_array(240 * 160)
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.map_err(|e| format!("failed to create framebuffer, error: {:?}", e))?;
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let frame_buffer_ref = env
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.new_global_ref(frame_buffer)
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.map_err(|e| format!("failed to add new global ref, error: {:?}", e))?;
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let renderer_klass = env
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.get_object_class(renderer_ref.as_obj())
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.expect("failed to get renderer class");
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let mid_render_frame = env
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.get_method_id(renderer_klass, "renderFrame", "([I)V")
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.expect("failed to get methodID for renderFrame")
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.into_inner();
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Ok(Renderer {
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renderer_ref,
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frame_buffer_ref,
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mid_render_frame,
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})
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}
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#[inline]
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fn render_frame(&self, env: &JNIEnv, buffer: &[u32]) {
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unsafe {
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env.set_int_array_region(
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self.frame_buffer_ref.as_obj().into_inner(),
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0,
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std::mem::transmute::<&[u32], &[i32]>(buffer),
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)
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.unwrap();
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}
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env.call_method_unchecked(
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self.renderer_ref.as_obj(),
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JMethodID::from(self.mid_render_frame),
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signature::JavaType::Primitive(signature::Primitive::Void),
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&[JValue::from(self.frame_buffer_ref.as_obj())],
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)
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.expect("failed to call renderFrame");
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}
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}
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struct Keypad {
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keypad_ref: GlobalRef,
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mid_get_key_state: jmethodID,
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}
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impl Keypad {
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fn new(env: &JNIEnv, keypad_obj: JObject) -> Keypad {
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let keypad_ref = env
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.new_global_ref(keypad_obj)
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.expect("failed to create keypad_ref");
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let keypad_klass = env
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.get_object_class(keypad_ref.as_obj())
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.expect("failed to create keypad class");
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let mid_get_key_state = env
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.get_method_id(keypad_klass, "getKeyState", "()I")
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.expect("failed to get methodID for getKeyState")
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.into_inner();
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Keypad {
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keypad_ref,
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mid_get_key_state,
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}
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}
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#[inline]
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fn get_key_state(&self, env: &JNIEnv) -> u16 {
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match env.call_method_unchecked(
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self.keypad_ref.as_obj(),
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JMethodID::from(self.mid_get_key_state),
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signature::JavaType::Primitive(signature::Primitive::Int),
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&[],
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) {
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Ok(JValue::Int(key_state)) => key_state as u16,
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_ => panic!("failed to call getKeyState"),
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}
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}
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}
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#[derive(Debug, PartialEq, Copy, Clone)]
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pub enum EmulationState {
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Initial,
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Pausing,
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Paused,
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Running(bool),
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Stopping,
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Stopped,
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}
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impl Default for EmulationState {
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fn default() -> EmulationState {
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EmulationState::Initial
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}
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}
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pub struct EmulatorContext {
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hwif: Rc<RefCell<Hardware>>,
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renderer: Renderer,
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audio_player_ref: GlobalRef,
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keypad: Keypad,
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pub emustate: Mutex<EmulationState>,
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pub gba: GameBoyAdvance,
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}
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impl EmulatorContext {
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pub fn native_open_context(
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env: &JNIEnv,
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bios: jbyteArray,
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rom: jbyteArray,
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renderer_obj: JObject,
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audio_player: JObject,
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keypad_obj: JObject,
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save_file: JString,
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skip_bios: jboolean,
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) -> Result<EmulatorContext, String> {
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let bios = env
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.convert_byte_array(bios)
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.map_err(|e| format!("could not get bios buffer, error {}", e))?
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.into_boxed_slice();
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let rom = env
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.convert_byte_array(rom)
|
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.map_err(|e| format!("could not get rom buffer, error {}", e))?
|
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.into_boxed_slice();
|
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let save_file: String = env
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.get_string(save_file)
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.map_err(|_| String::from("could not get save path"))?
|
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.into();
|
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let gamepak = GamepakBuilder::new()
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.take_buffer(rom)
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.save_path(&Path::new(&save_file))
|
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.build()
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.map_err(|e| format!("failed to load rom, gba result: {:?}", e))?;
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info!("Loaded ROM file {:?}", gamepak.header);
|
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|
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info!("Creating renderer");
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let renderer = Renderer::new(env, renderer_obj)?;
|
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|
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info!("Creating GBA Instance");
|
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let hw = Rc::new(RefCell::new(Hardware {
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sample_rate: audio::util::get_sample_rate(env, audio_player),
|
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audio_producer: None,
|
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key_state: 0xffff,
|
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}));
|
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let mut gba = GameBoyAdvance::new(bios, gamepak, hw.clone(), hw.clone());
|
||||
if skip_bios != 0 {
|
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info!("skipping bios");
|
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gba.skip_bios();
|
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}
|
||||
|
||||
info!("creating keypad");
|
||||
let keypad = Keypad::new(env, keypad_obj);
|
||||
|
||||
info!("creating context");
|
||||
let audio_player_ref = env.new_global_ref(audio_player).unwrap();
|
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let context = EmulatorContext {
|
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gba,
|
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keypad,
|
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renderer,
|
||||
audio_player_ref,
|
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emustate: Mutex::new(EmulationState::default()),
|
||||
hwif: hw.clone(),
|
||||
};
|
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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
|
||||
}
|
||||
}
|
||||
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
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -11,13 +11,14 @@ use super::dma::DmaController;
|
|||
use super::gpu::*;
|
||||
use super::interrupt::*;
|
||||
use super::iodev::*;
|
||||
use super::sched::{EventHandler, EventType, Scheduler, SharedScheduler};
|
||||
use super::sound::SoundController;
|
||||
use super::sysbus::SysBus;
|
||||
use super::timer::Timers;
|
||||
|
||||
use super::{AudioInterface, InputInterface};
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
use super::VideoInterface;
|
||||
use super::{AudioInterface, InputInterface};
|
||||
|
||||
pub struct GameBoyAdvance {
|
||||
pub sysbus: Box<SysBus>,
|
||||
|
|
@ -30,6 +31,8 @@ pub struct GameBoyAdvance {
|
|||
|
||||
pub cycles_to_next_event: usize,
|
||||
|
||||
scheduler: SharedScheduler,
|
||||
|
||||
overshoot_cycles: usize,
|
||||
interrupt_flags: SharedInterruptFlags,
|
||||
}
|
||||
|
|
@ -37,6 +40,7 @@ pub struct GameBoyAdvance {
|
|||
#[derive(Serialize, Deserialize)]
|
||||
struct SaveState {
|
||||
sysbus: Box<SysBus>,
|
||||
scheduler: Scheduler,
|
||||
interrupt_flags: u16,
|
||||
cpu: arm7tdmi::Core,
|
||||
}
|
||||
|
|
@ -58,8 +62,7 @@ impl GameBoyAdvance {
|
|||
pub fn new(
|
||||
bios_rom: Box<[u8]>,
|
||||
gamepak: Cartridge,
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
video_device: Rc<RefCell<dyn VideoInterface>>,
|
||||
#[cfg(not(feature = "no_video_interface"))] video_device: Rc<RefCell<dyn VideoInterface>>,
|
||||
audio_device: Rc<RefCell<dyn AudioInterface>>,
|
||||
input_device: Rc<RefCell<dyn InputInterface>>,
|
||||
) -> GameBoyAdvance {
|
||||
|
|
@ -70,12 +73,14 @@ impl GameBoyAdvance {
|
|||
};
|
||||
|
||||
let interrupt_flags = Rc::new(Cell::new(IrqBitmask(0)));
|
||||
let scheduler = Scheduler::new_shared();
|
||||
|
||||
let intc = InterruptController::new(interrupt_flags.clone());
|
||||
let gpu = Box::new(Gpu::new(interrupt_flags.clone()));
|
||||
let gpu = Box::new(Gpu::new(scheduler.clone(), interrupt_flags.clone()));
|
||||
let dmac = DmaController::new(interrupt_flags.clone());
|
||||
let timers = Timers::new(interrupt_flags.clone());
|
||||
let sound_controller = Box::new(SoundController::new(
|
||||
scheduler.clone(),
|
||||
audio_device.borrow().get_sample_rate() as f32,
|
||||
));
|
||||
let io = IoDevices::new(intc, gpu, dmac, timers, sound_controller);
|
||||
|
|
@ -92,6 +97,8 @@ impl GameBoyAdvance {
|
|||
audio_device: audio_device,
|
||||
input_device: input_device,
|
||||
|
||||
scheduler: scheduler,
|
||||
|
||||
cycles_to_next_event: 1,
|
||||
overshoot_cycles: 0,
|
||||
interrupt_flags: interrupt_flags,
|
||||
|
|
@ -104,8 +111,7 @@ impl GameBoyAdvance {
|
|||
|
||||
pub fn from_saved_state(
|
||||
savestate: &[u8],
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
video_device: Rc<RefCell<dyn VideoInterface>>,
|
||||
#[cfg(not(feature = "no_video_interface"))] video_device: Rc<RefCell<dyn VideoInterface>>,
|
||||
audio_device: Rc<RefCell<dyn AudioInterface>>,
|
||||
input_device: Rc<RefCell<dyn InputInterface>>,
|
||||
) -> bincode::Result<GameBoyAdvance> {
|
||||
|
|
@ -114,7 +120,10 @@ impl GameBoyAdvance {
|
|||
let arm7tdmi = decoded.cpu;
|
||||
let mut sysbus = decoded.sysbus;
|
||||
let interrupts = Rc::new(Cell::new(IrqBitmask(decoded.interrupt_flags)));
|
||||
let scheduler = decoded.scheduler.make_shared();
|
||||
|
||||
sysbus.io.gpu.set_scheduler(scheduler.clone());
|
||||
sysbus.io.sound.set_scheduler(scheduler.clone());
|
||||
sysbus.io.connect_irq(interrupts.clone());
|
||||
|
||||
Ok(GameBoyAdvance {
|
||||
|
|
@ -131,6 +140,8 @@ impl GameBoyAdvance {
|
|||
cycles_to_next_event: 1,
|
||||
|
||||
overshoot_cycles: 0,
|
||||
|
||||
scheduler: scheduler,
|
||||
})
|
||||
}
|
||||
|
||||
|
|
@ -139,6 +150,7 @@ impl GameBoyAdvance {
|
|||
cpu: self.cpu.clone(),
|
||||
sysbus: self.sysbus.clone(),
|
||||
interrupt_flags: self.interrupt_flags.get().value(),
|
||||
scheduler: (*self.scheduler).clone(),
|
||||
};
|
||||
|
||||
bincode::serialize(&s)
|
||||
|
|
@ -149,10 +161,13 @@ impl GameBoyAdvance {
|
|||
|
||||
self.cpu = decoded.cpu;
|
||||
self.sysbus = decoded.sysbus;
|
||||
self.scheduler = Scheduler::make_shared(decoded.scheduler);
|
||||
self.interrupt_flags = Rc::new(Cell::new(IrqBitmask(decoded.interrupt_flags)));
|
||||
|
||||
// Redistribute shared pointer for interrupts
|
||||
// Redistribute shared pointers
|
||||
self.sysbus.io.connect_irq(self.interrupt_flags.clone());
|
||||
self.sysbus.io.gpu.set_scheduler(self.scheduler.clone());
|
||||
self.sysbus.io.sound.set_scheduler(self.scheduler.clone());
|
||||
|
||||
self.cycles_to_next_event = 1;
|
||||
|
||||
|
|
@ -177,10 +192,12 @@ impl GameBoyAdvance {
|
|||
pub fn frame(&mut self) {
|
||||
self.key_poll();
|
||||
|
||||
let mut scheduler = self.scheduler.clone();
|
||||
|
||||
let mut remaining_cycles = CYCLES_FULL_REFRESH - self.overshoot_cycles;
|
||||
|
||||
while remaining_cycles > 0 {
|
||||
let cycles = self.step();
|
||||
let cycles = self.step(&mut scheduler);
|
||||
if remaining_cycles >= cycles {
|
||||
remaining_cycles -= cycles;
|
||||
} else {
|
||||
|
|
@ -228,15 +245,15 @@ impl GameBoyAdvance {
|
|||
self.cpu.cycles - previous_cycles
|
||||
}
|
||||
|
||||
pub fn step(&mut self) -> usize {
|
||||
pub fn step(&mut self, scheduler: &mut Scheduler) -> usize {
|
||||
// I hate myself for doing this, but rust left me no choice.
|
||||
let io = unsafe {
|
||||
let ptr = &mut *self.sysbus as *mut SysBus;
|
||||
&mut (*ptr).io as &mut IoDevices
|
||||
};
|
||||
|
||||
let mut cycles_left = self.cycles_to_next_event;
|
||||
let mut cycles_to_next_event = std::usize::MAX;
|
||||
let available_cycles = self.scheduler.get_cycles_to_next_event();
|
||||
let mut cycles_left = available_cycles;
|
||||
let mut cycles = 0;
|
||||
|
||||
while cycles_left > 0 {
|
||||
|
|
@ -259,18 +276,9 @@ impl GameBoyAdvance {
|
|||
cycles_left -= _cycles;
|
||||
}
|
||||
|
||||
// update gpu & sound
|
||||
io.timers.update(cycles, &mut self.sysbus);
|
||||
io.gpu.update(
|
||||
cycles,
|
||||
&mut cycles_to_next_event,
|
||||
self.sysbus.as_mut(),
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
&self.video_device,
|
||||
);
|
||||
io.sound
|
||||
.update(cycles, &mut cycles_to_next_event, &self.audio_device);
|
||||
self.cycles_to_next_event = cycles_to_next_event;
|
||||
|
||||
scheduler.run(cycles, self);
|
||||
|
||||
cycles
|
||||
}
|
||||
|
|
@ -293,17 +301,11 @@ impl GameBoyAdvance {
|
|||
let cycles = self.step_cpu(io);
|
||||
let breakpoint = self.check_breakpoint();
|
||||
|
||||
let mut _ignored = 0;
|
||||
// update gpu & sound
|
||||
io.timers.update(cycles, &mut self.sysbus);
|
||||
io.gpu.update(
|
||||
cycles,
|
||||
&mut _ignored,
|
||||
self.sysbus.as_mut(),
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
&self.video_device,
|
||||
);
|
||||
io.sound.update(cycles, &mut _ignored, &self.audio_device);
|
||||
|
||||
// update gpu & sound
|
||||
let mut scheduler = self.scheduler.clone();
|
||||
scheduler.run(cycles, self);
|
||||
|
||||
breakpoint
|
||||
}
|
||||
|
|
@ -320,6 +322,25 @@ impl GameBoyAdvance {
|
|||
}
|
||||
}
|
||||
|
||||
impl EventHandler for GameBoyAdvance {
|
||||
fn handle_event(&mut self, event: EventType, extra_cycles: usize) {
|
||||
let io = unsafe {
|
||||
let ptr = &mut *self.sysbus as *mut SysBus;
|
||||
&mut (*ptr).io as &mut IoDevices
|
||||
};
|
||||
match event {
|
||||
EventType::Gpu(event) => io.gpu.on_event(
|
||||
event,
|
||||
extra_cycles,
|
||||
self.sysbus.as_mut(),
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
&self.video_device,
|
||||
),
|
||||
EventType::Apu(event) => io.sound.on_event(event, extra_cycles, &self.audio_device),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
|
@ -337,6 +358,7 @@ mod tests {
|
|||
}
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
impl VideoInterface for DummyInterface {}
|
||||
impl AudioInterface for DummyInterface {}
|
||||
impl InputInterface for DummyInterface {}
|
||||
|
|
@ -350,8 +372,14 @@ mod tests {
|
|||
.build()
|
||||
.unwrap();
|
||||
let dummy = Rc::new(RefCell::new(DummyInterface::new()));
|
||||
let mut gba =
|
||||
GameBoyAdvance::new(bios, cartridge, dummy.clone(), dummy.clone(), dummy.clone());
|
||||
let mut gba = GameBoyAdvance::new(
|
||||
bios,
|
||||
cartridge,
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
dummy.clone(),
|
||||
dummy.clone(),
|
||||
dummy.clone(),
|
||||
);
|
||||
gba.skip_bios();
|
||||
|
||||
gba
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@ use serde::{Deserialize, Serialize};
|
|||
use super::bus::*;
|
||||
use super::dma::{DmaNotifer, TIMING_HBLANK, TIMING_VBLANK};
|
||||
use super::interrupt::{self, Interrupt, InterruptConnect, SharedInterruptFlags};
|
||||
use super::sched::*;
|
||||
pub use super::sysbus::consts::*;
|
||||
use super::util::BoxedMemory;
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
|
|
@ -183,6 +184,11 @@ pub struct Gpu {
|
|||
pub state: GpuState,
|
||||
interrupt_flags: SharedInterruptFlags,
|
||||
|
||||
/// When deserializing this struct using serde, make sure to call Gpu:::set_scheduler
|
||||
#[serde(skip)]
|
||||
#[serde(default = "Scheduler::new_shared")]
|
||||
scheduler: SharedScheduler,
|
||||
|
||||
/// how many cycles left until next gpu state ?
|
||||
cycles_left_for_current_state: usize,
|
||||
|
||||
|
|
@ -224,9 +230,11 @@ impl InterruptConnect for Gpu {
|
|||
}
|
||||
|
||||
impl Gpu {
|
||||
pub fn new(interrupt_flags: SharedInterruptFlags) -> Gpu {
|
||||
pub fn new(mut scheduler: SharedScheduler, interrupt_flags: SharedInterruptFlags) -> Gpu {
|
||||
scheduler.add_gpu_event(GpuEvent::HDraw, CYCLES_HDRAW);
|
||||
Gpu {
|
||||
interrupt_flags,
|
||||
scheduler,
|
||||
dispcnt: DisplayControl(0x80),
|
||||
dispstat: DisplayStatus(0),
|
||||
backgrounds: [
|
||||
|
|
@ -261,6 +269,10 @@ impl Gpu {
|
|||
}
|
||||
}
|
||||
|
||||
pub fn set_scheduler(&mut self, scheduler: SharedScheduler) {
|
||||
self.scheduler = scheduler;
|
||||
}
|
||||
|
||||
pub fn write_dispcnt(&mut self, value: u16) {
|
||||
let new_dispcnt = DisplayControl(value);
|
||||
let old_mode = self.dispcnt.mode();
|
||||
|
|
@ -414,6 +426,93 @@ impl Gpu {
|
|||
&self.frame_buffer
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn update_vcount(&mut self, value: usize) {
|
||||
self.vcount = value;
|
||||
let vcount_setting = self.dispstat.vcount_setting();
|
||||
self.dispstat
|
||||
.set_vcount_flag(vcount_setting == self.vcount as u16);
|
||||
|
||||
if self.dispstat.vcount_irq_enable() && self.dispstat.get_vcount_flag() {
|
||||
interrupt::signal_irq(&self.interrupt_flags, Interrupt::LCD_VCounterMatch);
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn handle_hdraw<D: DmaNotifer>(&mut self, dma_notifier: &mut D) -> (GpuEvent, usize) {
|
||||
self.dispstat.set_hblank_flag(true);
|
||||
if self.dispstat.hblank_irq_enable() {
|
||||
interrupt::signal_irq(&self.interrupt_flags, Interrupt::LCD_HBlank);
|
||||
};
|
||||
dma_notifier.notify(TIMING_HBLANK);
|
||||
|
||||
// Next event
|
||||
(GpuEvent::HBlank, CYCLES_HBLANK)
|
||||
}
|
||||
|
||||
fn handle_hblank<D: DmaNotifer>(
|
||||
&mut self,
|
||||
dma_notifier: &mut D,
|
||||
#[cfg(not(feature = "no_video_interface"))] video_device: &VideoDeviceRcRefCell,
|
||||
) -> (GpuEvent, usize) {
|
||||
self.update_vcount(self.vcount + 1);
|
||||
|
||||
if self.vcount < DISPLAY_HEIGHT {
|
||||
self.dispstat.set_hblank_flag(false);
|
||||
self.render_scanline();
|
||||
// update BG2/3 reference points on the end of a scanline
|
||||
for i in 0..2 {
|
||||
self.bg_aff[i].internal_x += self.bg_aff[i].pb as i16 as i32;
|
||||
self.bg_aff[i].internal_y += self.bg_aff[i].pd as i16 as i32;
|
||||
}
|
||||
|
||||
(GpuEvent::HDraw, CYCLES_HDRAW)
|
||||
} else {
|
||||
// latch BG2/3 reference points on vblank
|
||||
for i in 0..2 {
|
||||
self.bg_aff[i].internal_x = self.bg_aff[i].x;
|
||||
self.bg_aff[i].internal_y = self.bg_aff[i].y;
|
||||
}
|
||||
|
||||
self.dispstat.set_vblank_flag(true);
|
||||
self.dispstat.set_hblank_flag(false);
|
||||
if self.dispstat.vblank_irq_enable() {
|
||||
interrupt::signal_irq(&self.interrupt_flags, Interrupt::LCD_VBlank);
|
||||
};
|
||||
|
||||
dma_notifier.notify(TIMING_VBLANK);
|
||||
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
video_device.borrow_mut().render(&self.frame_buffer);
|
||||
|
||||
self.obj_buffer_reset();
|
||||
|
||||
(GpuEvent::VBlankHDraw, CYCLES_HDRAW)
|
||||
}
|
||||
}
|
||||
|
||||
fn handle_vblank_hdraw(&mut self) -> (GpuEvent, usize) {
|
||||
self.dispstat.set_hblank_flag(true);
|
||||
if self.dispstat.hblank_irq_enable() {
|
||||
interrupt::signal_irq(&self.interrupt_flags, Interrupt::LCD_HBlank);
|
||||
};
|
||||
(GpuEvent::VBlankHBlank, CYCLES_HBLANK)
|
||||
}
|
||||
|
||||
fn handle_vblank_hblank(&mut self) -> (GpuEvent, usize) {
|
||||
if self.vcount < DISPLAY_HEIGHT + VBLANK_LINES - 1 {
|
||||
self.update_vcount(self.vcount + 1);
|
||||
self.dispstat.set_hblank_flag(false);
|
||||
(GpuEvent::VBlankHDraw, CYCLES_HDRAW)
|
||||
} else {
|
||||
self.update_vcount(0);
|
||||
self.dispstat.set_vblank_flag(false);
|
||||
self.dispstat.set_hblank_flag(false);
|
||||
self.render_scanline();
|
||||
(GpuEvent::HDraw, CYCLES_HDRAW)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn on_state_completed<D>(
|
||||
&mut self,
|
||||
completed: GpuState,
|
||||
|
|
@ -440,12 +539,8 @@ impl Gpu {
|
|||
// Transition to HBlank
|
||||
self.state = HBlank;
|
||||
self.cycles_left_for_current_state = CYCLES_HBLANK;
|
||||
self.dispstat.set_hblank_flag(true);
|
||||
|
||||
if self.dispstat.hblank_irq_enable() {
|
||||
interrupt::signal_irq(&self.interrupt_flags, Interrupt::LCD_HBlank);
|
||||
};
|
||||
dma_notifier.notify(TIMING_HBLANK);
|
||||
self.handle_hdraw(dma_notifier);
|
||||
}
|
||||
HBlank => {
|
||||
update_vcount!(self.vcount + 1);
|
||||
|
|
@ -538,6 +633,29 @@ impl Gpu {
|
|||
*cycles_to_next_event = self.cycles_left_for_current_state;
|
||||
}
|
||||
}
|
||||
|
||||
pub fn on_event<D>(
|
||||
&mut self,
|
||||
event: GpuEvent,
|
||||
extra_cycles: usize,
|
||||
dma_notifier: &mut D,
|
||||
#[cfg(not(feature = "no_video_interface"))] video_device: &VideoDeviceRcRefCell,
|
||||
) where
|
||||
D: DmaNotifer,
|
||||
{
|
||||
let (next_event, cycles) = match event {
|
||||
GpuEvent::HDraw => self.handle_hdraw(dma_notifier),
|
||||
GpuEvent::HBlank => self.handle_hblank(
|
||||
dma_notifier,
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
video_device,
|
||||
),
|
||||
GpuEvent::VBlankHDraw => self.handle_vblank_hdraw(),
|
||||
GpuEvent::VBlankHBlank => self.handle_vblank_hblank(),
|
||||
};
|
||||
self.scheduler
|
||||
.schedule(EventType::Gpu(next_event), cycles - extra_cycles);
|
||||
}
|
||||
}
|
||||
|
||||
impl Bus for Gpu {
|
||||
|
|
@ -625,6 +743,7 @@ mod tests {
|
|||
frame_counter: usize,
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
impl VideoInterface for TestVideoInterface {
|
||||
fn render(&mut self, _buffer: &[u32]) {
|
||||
self.frame_counter += 1;
|
||||
|
|
@ -633,8 +752,13 @@ mod tests {
|
|||
|
||||
#[test]
|
||||
fn test_gpu_state_machine() {
|
||||
let mut gpu = Gpu::new(Rc::new(Cell::new(Default::default())));
|
||||
let mut gpu = Gpu::new(
|
||||
Scheduler::new_shared(),
|
||||
Rc::new(Cell::new(Default::default())),
|
||||
);
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
let video = Rc::new(RefCell::new(TestVideoInterface::default()));
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
let video_clone: VideoDeviceRcRefCell = video.clone();
|
||||
let mut dma_notifier = NopDmaNotifer;
|
||||
let mut cycles_to_next_event = CYCLES_FULL_REFRESH;
|
||||
|
|
@ -659,6 +783,7 @@ mod tests {
|
|||
|
||||
for line in 0..160 {
|
||||
println!("line = {}", line);
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
assert_eq!(video.borrow().frame_counter, 0);
|
||||
assert_eq!(gpu.vcount, line);
|
||||
assert_eq!(gpu.state, GpuState::HDraw);
|
||||
|
|
@ -676,6 +801,7 @@ mod tests {
|
|||
assert_eq!(gpu.interrupt_flags.get().LCD_VCounterMatch(), false);
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
assert_eq!(video.borrow().frame_counter, 1);
|
||||
|
||||
for line in 0..68 {
|
||||
|
|
@ -694,6 +820,7 @@ mod tests {
|
|||
update!(CYCLES_HBLANK);
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "no_video_interface"))]
|
||||
assert_eq!(video.borrow().frame_counter, 1);
|
||||
assert_eq!(total_cycles, CYCLES_FULL_REFRESH);
|
||||
|
||||
|
|
|
|||
|
|
@ -40,6 +40,7 @@ pub mod arm7tdmi;
|
|||
pub mod cartridge;
|
||||
pub mod disass;
|
||||
pub mod gpu;
|
||||
mod sched;
|
||||
pub mod sound;
|
||||
pub mod sysbus;
|
||||
pub use sysbus::SysBus;
|
||||
|
|
|
|||
|
|
@ -1,58 +1,58 @@
|
|||
use std::collections::HashMap;
|
||||
use std::convert::TryFrom;
|
||||
|
||||
use yaml_rust::YamlLoader;
|
||||
|
||||
use super::cartridge::BackupType;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct GameOverride {
|
||||
force_rtc: bool,
|
||||
save_type: Option<BackupType>,
|
||||
}
|
||||
|
||||
impl GameOverride {
|
||||
pub fn force_rtc(&self) -> bool {
|
||||
self.force_rtc
|
||||
}
|
||||
pub fn save_type(&self) -> Option<BackupType> {
|
||||
self.save_type
|
||||
}
|
||||
}
|
||||
|
||||
lazy_static! {
|
||||
static ref GAME_OVERRIDES: HashMap<String, GameOverride> = {
|
||||
let mut m = HashMap::new();
|
||||
|
||||
let docs = YamlLoader::load_from_str(include_str!("../overrides.yaml"))
|
||||
.expect("failed to load overrides file");
|
||||
|
||||
let doc = &docs[0];
|
||||
let games = doc.as_vec().unwrap();
|
||||
|
||||
for game in games {
|
||||
let game_code = String::from(game["code"].as_str().unwrap());
|
||||
let force_rtc = game["rtc"].as_bool().unwrap_or(false);
|
||||
let save_type = if let Some(save_type) = game["save_type"].as_str() {
|
||||
match BackupType::try_from(save_type) {
|
||||
Ok(x) => Some(x),
|
||||
_ => panic!("{}: invalid save type {:#}", game_code, save_type),
|
||||
}
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
let game_overrride = GameOverride {
|
||||
force_rtc,
|
||||
save_type,
|
||||
};
|
||||
m.insert(game_code, game_overrride);
|
||||
}
|
||||
|
||||
m
|
||||
};
|
||||
}
|
||||
|
||||
pub fn get_game_overrides(game_code: &str) -> Option<&GameOverride> {
|
||||
GAME_OVERRIDES.get(game_code)
|
||||
}
|
||||
use std::collections::HashMap;
|
||||
use std::convert::TryFrom;
|
||||
|
||||
use yaml_rust::YamlLoader;
|
||||
|
||||
use super::cartridge::BackupType;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct GameOverride {
|
||||
force_rtc: bool,
|
||||
save_type: Option<BackupType>,
|
||||
}
|
||||
|
||||
impl GameOverride {
|
||||
pub fn force_rtc(&self) -> bool {
|
||||
self.force_rtc
|
||||
}
|
||||
pub fn save_type(&self) -> Option<BackupType> {
|
||||
self.save_type
|
||||
}
|
||||
}
|
||||
|
||||
lazy_static! {
|
||||
static ref GAME_OVERRIDES: HashMap<String, GameOverride> = {
|
||||
let mut m = HashMap::new();
|
||||
|
||||
let docs = YamlLoader::load_from_str(include_str!("../overrides.yaml"))
|
||||
.expect("failed to load overrides file");
|
||||
|
||||
let doc = &docs[0];
|
||||
let games = doc.as_vec().unwrap();
|
||||
|
||||
for game in games {
|
||||
let game_code = String::from(game["code"].as_str().unwrap());
|
||||
let force_rtc = game["rtc"].as_bool().unwrap_or(false);
|
||||
let save_type = if let Some(save_type) = game["save_type"].as_str() {
|
||||
match BackupType::try_from(save_type) {
|
||||
Ok(x) => Some(x),
|
||||
_ => panic!("{}: invalid save type {:#}", game_code, save_type),
|
||||
}
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
let game_overrride = GameOverride {
|
||||
force_rtc,
|
||||
save_type,
|
||||
};
|
||||
m.insert(game_code, game_overrride);
|
||||
}
|
||||
|
||||
m
|
||||
};
|
||||
}
|
||||
|
||||
pub fn get_game_overrides(game_code: &str) -> Option<&GameOverride> {
|
||||
GAME_OVERRIDES.get(game_code)
|
||||
}
|
||||
|
|
|
|||
305
core/src/sched.rs
Normal file
305
core/src/sched.rs
Normal file
|
|
@ -0,0 +1,305 @@
|
|||
use std::cell::UnsafeCell;
|
||||
use std::rc::Rc;
|
||||
|
||||
use serde::{Deserialize, Serialize};
|
||||
|
||||
const NUM_EVENTS: usize = 32;
|
||||
|
||||
#[repr(u32)]
|
||||
#[derive(Serialize, Deserialize, Debug, PartialEq, Copy, Clone)]
|
||||
pub enum GpuEvent {
|
||||
HDraw,
|
||||
HBlank,
|
||||
VBlankHDraw,
|
||||
VBlankHBlank,
|
||||
}
|
||||
|
||||
#[repr(u32)]
|
||||
#[derive(Serialize, Deserialize, Debug, PartialEq, Copy, Clone)]
|
||||
pub enum ApuEvent {
|
||||
Psg1Generate,
|
||||
Psg2Generate,
|
||||
Psg3Generate,
|
||||
Psg4Generate,
|
||||
Sample,
|
||||
}
|
||||
|
||||
#[repr(u32)]
|
||||
#[derive(Serialize, Deserialize, Debug, PartialEq, Copy, Clone)]
|
||||
pub enum EventType {
|
||||
Gpu(GpuEvent),
|
||||
Apu(ApuEvent),
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug, Clone)]
|
||||
struct Event {
|
||||
typ: EventType,
|
||||
/// Timestamp in cycles
|
||||
time: usize,
|
||||
}
|
||||
|
||||
impl Event {
|
||||
fn new(typ: EventType, time: usize) -> Event {
|
||||
Event { typ, time }
|
||||
}
|
||||
|
||||
fn get_type(&self) -> EventType {
|
||||
self.typ
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug, Clone)]
|
||||
pub struct Scheduler {
|
||||
timestamp: usize,
|
||||
events: Vec<Event>,
|
||||
}
|
||||
|
||||
// Opt-out of runtime borrow checking by using unsafe cell
|
||||
// SAFETY: We need to make sure that the scheduler event queue is not modified while iterating it.
|
||||
#[repr(transparent)]
|
||||
#[derive(Debug)]
|
||||
pub struct SharedScheduler(Rc<UnsafeCell<Scheduler>>);
|
||||
|
||||
impl std::ops::Deref for SharedScheduler {
|
||||
type Target = Scheduler;
|
||||
|
||||
fn deref(&self) -> &Self::Target {
|
||||
unsafe { &(*self.0.get()) }
|
||||
}
|
||||
}
|
||||
|
||||
impl std::ops::DerefMut for SharedScheduler {
|
||||
fn deref_mut(&mut self) -> &mut Self::Target {
|
||||
unsafe { &mut (*self.0.get()) }
|
||||
}
|
||||
}
|
||||
|
||||
impl Clone for SharedScheduler {
|
||||
fn clone(&self) -> SharedScheduler {
|
||||
SharedScheduler(self.0.clone())
|
||||
}
|
||||
}
|
||||
|
||||
pub trait EventHandler {
|
||||
/// Handle the scheduler event
|
||||
fn handle_event(&mut self, e: EventType, extra_cycles: usize);
|
||||
}
|
||||
|
||||
impl Scheduler {
|
||||
pub fn new_shared() -> SharedScheduler {
|
||||
let sched = Scheduler {
|
||||
timestamp: 0,
|
||||
events: Vec::with_capacity(NUM_EVENTS),
|
||||
};
|
||||
SharedScheduler(Rc::new(UnsafeCell::new(sched)))
|
||||
}
|
||||
|
||||
pub fn make_shared(self) -> SharedScheduler {
|
||||
SharedScheduler(Rc::new(UnsafeCell::new(self)))
|
||||
}
|
||||
|
||||
pub fn schedule(&mut self, typ: EventType, cycles: usize) {
|
||||
let event = Event::new(typ, self.timestamp + cycles);
|
||||
let idx = self
|
||||
.events
|
||||
.binary_search_by(|e| e.time.cmp(&event.time))
|
||||
.unwrap_or_else(|x| x);
|
||||
self.events.insert(idx, event);
|
||||
}
|
||||
|
||||
pub fn add_gpu_event(&mut self, e: GpuEvent, cycles: usize) {
|
||||
self.schedule(EventType::Gpu(e), cycles);
|
||||
}
|
||||
|
||||
pub fn add_apu_event(&mut self, e: ApuEvent, cycles: usize) {
|
||||
self.schedule(EventType::Apu(e), cycles);
|
||||
}
|
||||
|
||||
pub fn run<H: EventHandler>(&mut self, cycles: usize, handler: &mut H) {
|
||||
let run_to = self.timestamp + cycles;
|
||||
self.timestamp = run_to;
|
||||
|
||||
while self.events.len() > 0 {
|
||||
if run_to >= self.events[0].time {
|
||||
let event = self.events.remove(0);
|
||||
handler.handle_event(event.get_type(), run_to - event.time);
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn get_cycles_to_next_event(&self) -> usize {
|
||||
assert_ne!(self.events.len(), 0);
|
||||
self.events[0].time - self.timestamp
|
||||
}
|
||||
|
||||
#[allow(unused)]
|
||||
fn is_empty(&self) -> bool {
|
||||
self.events.is_empty()
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
|
||||
use super::*;
|
||||
|
||||
/// Some usecase example where a struct holds the scheduler
|
||||
struct Holder {
|
||||
sched: SharedScheduler,
|
||||
event_bitmask: u32,
|
||||
}
|
||||
|
||||
const BIT_GPU_VBLANKHDRAW: u32 = 1 << 0;
|
||||
const BIT_APU_PSG1GENERATE: u32 = 1 << 1;
|
||||
const BIT_APU_PSG2GENERATE: u32 = 1 << 2;
|
||||
const BIT_APU_PSG3GENERATE: u32 = 1 << 3;
|
||||
const BIT_APU_PSG4GENERATE: u32 = 1 << 4;
|
||||
const BIT_APU_SAMPLE: u32 = 1 << 5;
|
||||
|
||||
#[inline]
|
||||
fn get_event_bit(e: EventType) -> u32 {
|
||||
match e {
|
||||
EventType::Gpu(GpuEvent::VBlankHDraw) => BIT_GPU_VBLANKHDRAW,
|
||||
EventType::Apu(ApuEvent::Psg1Generate) => BIT_APU_PSG1GENERATE,
|
||||
EventType::Apu(ApuEvent::Psg2Generate) => BIT_APU_PSG2GENERATE,
|
||||
EventType::Apu(ApuEvent::Psg3Generate) => BIT_APU_PSG3GENERATE,
|
||||
EventType::Apu(ApuEvent::Psg4Generate) => BIT_APU_PSG4GENERATE,
|
||||
EventType::Apu(ApuEvent::Sample) => BIT_APU_SAMPLE,
|
||||
_ => unimplemented!("unsupported event for this test"),
|
||||
}
|
||||
}
|
||||
|
||||
impl Holder {
|
||||
fn new() -> Holder {
|
||||
Holder {
|
||||
sched: Scheduler::new_shared(),
|
||||
event_bitmask: 0,
|
||||
}
|
||||
}
|
||||
|
||||
fn is_event_done(&self, e: EventType) -> bool {
|
||||
(self.event_bitmask & get_event_bit(e)) != 0
|
||||
}
|
||||
}
|
||||
|
||||
impl EventHandler for Holder {
|
||||
fn handle_event(&mut self, e: EventType, extra_cycles: usize) {
|
||||
println!("[holder] got event {:?} extra_cycles {}", e, extra_cycles);
|
||||
self.event_bitmask |= get_event_bit(e);
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_scheduler() {
|
||||
let mut holder = Holder::new();
|
||||
|
||||
// clone the sched so we get a reference that is not owned by the holder
|
||||
// SAFETY: since the SharedScheduler is built upon an UnsafeCell instead of RefCell, we are sacrificing runtime safety checks for performance.
|
||||
// It is safe since the events iteration allows the EventHandler to modify the queue.
|
||||
|
||||
let mut sched = holder.sched.clone();
|
||||
holder
|
||||
.sched
|
||||
.schedule(EventType::Gpu(GpuEvent::VBlankHDraw), 240);
|
||||
holder
|
||||
.sched
|
||||
.schedule(EventType::Apu(ApuEvent::Psg1Generate), 60);
|
||||
holder.sched.schedule(EventType::Apu(ApuEvent::Sample), 512);
|
||||
holder
|
||||
.sched
|
||||
.schedule(EventType::Apu(ApuEvent::Psg2Generate), 13);
|
||||
holder
|
||||
.sched
|
||||
.schedule(EventType::Apu(ApuEvent::Psg4Generate), 72);
|
||||
|
||||
println!("all events");
|
||||
for e in sched.events.iter() {
|
||||
let typ = e.get_type();
|
||||
println!("{:?}", typ);
|
||||
}
|
||||
|
||||
macro_rules! run_for {
|
||||
($cycles:expr) => {
|
||||
println!("running the scheduler for {} cycles", $cycles);
|
||||
sched.run($cycles, &mut holder);
|
||||
if (!sched.is_empty()) {
|
||||
println!(
|
||||
"cycles for next event: {}",
|
||||
sched.get_cycles_to_next_event()
|
||||
);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
run_for!(100);
|
||||
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Psg1Generate)),
|
||||
true
|
||||
);
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Psg2Generate)),
|
||||
true
|
||||
);
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Psg4Generate)),
|
||||
true
|
||||
);
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Sample)),
|
||||
false
|
||||
);
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Gpu(GpuEvent::VBlankHDraw)),
|
||||
false
|
||||
);
|
||||
|
||||
run_for!(100);
|
||||
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Gpu(GpuEvent::VBlankHDraw)),
|
||||
false
|
||||
);
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Sample)),
|
||||
false
|
||||
);
|
||||
|
||||
run_for!(100);
|
||||
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Gpu(GpuEvent::VBlankHDraw)),
|
||||
true
|
||||
);
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Sample)),
|
||||
false
|
||||
);
|
||||
|
||||
run_for!(211);
|
||||
|
||||
assert_eq!(
|
||||
holder.is_event_done(EventType::Apu(ApuEvent::Sample)),
|
||||
false
|
||||
);
|
||||
|
||||
run_for!(1);
|
||||
|
||||
assert_eq!(holder.is_event_done(EventType::Apu(ApuEvent::Sample)), true);
|
||||
|
||||
println!("all events (holder)");
|
||||
for e in holder.sched.events.iter() {
|
||||
let typ = e.get_type();
|
||||
println!("{:?}", typ);
|
||||
}
|
||||
|
||||
println!("all events (cloned again)");
|
||||
let sched_cloned = holder.sched.clone();
|
||||
for e in sched_cloned.events.iter() {
|
||||
let typ = e.get_type();
|
||||
println!("{:?}", typ);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -6,6 +6,7 @@ use serde::{Deserialize, Serialize};
|
|||
|
||||
use super::dma::DmaController;
|
||||
use super::iodev::consts::*;
|
||||
use super::sched::*;
|
||||
|
||||
use crate::{AudioInterface, StereoSample};
|
||||
|
||||
|
|
@ -62,6 +63,10 @@ type AudioDeviceRcRefCell = Rc<RefCell<dyn AudioInterface>>;
|
|||
|
||||
#[derive(Serialize, Deserialize, Clone, Debug)]
|
||||
pub struct SoundController {
|
||||
#[serde(skip)]
|
||||
#[serde(default = "Scheduler::new_shared")]
|
||||
scheduler: SharedScheduler,
|
||||
|
||||
cycles: usize, // cycles count when we last provided a new sample.
|
||||
|
||||
mse: bool,
|
||||
|
|
@ -101,9 +106,13 @@ pub struct SoundController {
|
|||
}
|
||||
|
||||
impl SoundController {
|
||||
pub fn new(audio_device_sample_rate: f32) -> SoundController {
|
||||
pub fn new(mut scheduler: SharedScheduler, audio_device_sample_rate: f32) -> SoundController {
|
||||
let resampler = CosineResampler::new(32768_f32, audio_device_sample_rate);
|
||||
let cycles_per_sample = 512;
|
||||
scheduler.schedule(EventType::Apu(ApuEvent::Sample), cycles_per_sample);
|
||||
SoundController {
|
||||
scheduler,
|
||||
cycles_per_sample,
|
||||
cycles: 0,
|
||||
mse: false,
|
||||
left_volume: 0,
|
||||
|
|
@ -127,7 +136,6 @@ impl SoundController {
|
|||
sqr1_cur_vol: 0,
|
||||
sound_bias: 0x200,
|
||||
sample_rate: 32_768f32,
|
||||
cycles_per_sample: 512,
|
||||
dma_sound: [Default::default(), Default::default()],
|
||||
|
||||
resampler: resampler,
|
||||
|
|
@ -135,6 +143,10 @@ impl SoundController {
|
|||
}
|
||||
}
|
||||
|
||||
pub fn set_scheduler(&mut self, scheduler: SharedScheduler) {
|
||||
self.scheduler = scheduler;
|
||||
}
|
||||
|
||||
pub fn handle_read(&self, io_addr: u32) -> u16 {
|
||||
let value = match io_addr {
|
||||
REG_SOUNDCNT_X => cbit(7, self.mse),
|
||||
|
|
@ -277,6 +289,11 @@ impl SoundController {
|
|||
self.resampler.in_freq = self.sample_rate;
|
||||
}
|
||||
self.cycles_per_sample = 512 >> resolution;
|
||||
info!(
|
||||
"bias - setting sample frequency to {}hz",
|
||||
self.cycles_per_sample
|
||||
);
|
||||
// TODO this will not affect the currently scheduled sample event
|
||||
}
|
||||
|
||||
_ => {
|
||||
|
|
@ -317,46 +334,47 @@ impl SoundController {
|
|||
}
|
||||
}
|
||||
|
||||
pub fn update(
|
||||
&mut self,
|
||||
cycles: usize,
|
||||
cycles_to_next_event: &mut usize,
|
||||
audio_device: &AudioDeviceRcRefCell,
|
||||
) {
|
||||
self.cycles += cycles;
|
||||
while self.cycles >= self.cycles_per_sample {
|
||||
self.cycles -= self.cycles_per_sample;
|
||||
#[inline]
|
||||
fn on_sample(&mut self, extra_cycles: usize, audio_device: &AudioDeviceRcRefCell) {
|
||||
let mut sample = [0f32; 2];
|
||||
|
||||
// time to push a new sample!
|
||||
|
||||
let mut sample = [0f32; 2];
|
||||
|
||||
for channel in 0..=1 {
|
||||
let mut dma_sample = 0;
|
||||
for dma in &mut self.dma_sound {
|
||||
if dma.is_stereo_channel_enabled(channel) {
|
||||
let value = dma.value as i16;
|
||||
dma_sample += value * (2 << dma.volume_shift);
|
||||
}
|
||||
for channel in 0..=1 {
|
||||
let mut dma_sample = 0;
|
||||
for dma in &mut self.dma_sound {
|
||||
if dma.is_stereo_channel_enabled(channel) {
|
||||
let value = dma.value as i16;
|
||||
dma_sample += value * (2 << dma.volume_shift);
|
||||
}
|
||||
|
||||
apply_bias(&mut dma_sample, self.sound_bias.bit_range(0..10) as i16);
|
||||
sample[channel] = dma_sample as i32 as f32;
|
||||
}
|
||||
|
||||
let stereo_sample = (sample[0], sample[1]);
|
||||
self.resampler.feed(stereo_sample, &mut self.output_buffer);
|
||||
|
||||
let mut audio = audio_device.borrow_mut();
|
||||
self.output_buffer.drain(..).for_each(|(left, right)| {
|
||||
audio.push_sample(&[
|
||||
(left.round() as i16) * (std::i16::MAX / 512),
|
||||
(right.round() as i16) * (std::i16::MAX / 512),
|
||||
]);
|
||||
});
|
||||
apply_bias(&mut dma_sample, self.sound_bias.bit_range(0..10) as i16);
|
||||
sample[channel] = dma_sample as i32 as f32;
|
||||
}
|
||||
if self.cycles_per_sample < *cycles_to_next_event {
|
||||
*cycles_to_next_event = self.cycles_per_sample;
|
||||
|
||||
let stereo_sample = (sample[0], sample[1]);
|
||||
self.resampler.feed(stereo_sample, &mut self.output_buffer);
|
||||
|
||||
let mut audio = audio_device.borrow_mut();
|
||||
self.output_buffer.drain(..).for_each(|(left, right)| {
|
||||
audio.push_sample(&[
|
||||
(left.round() as i16) * (std::i16::MAX / 512),
|
||||
(right.round() as i16) * (std::i16::MAX / 512),
|
||||
]);
|
||||
});
|
||||
|
||||
self.scheduler
|
||||
.add_apu_event(ApuEvent::Sample, self.cycles_per_sample - extra_cycles);
|
||||
}
|
||||
|
||||
pub fn on_event(
|
||||
&mut self,
|
||||
event: ApuEvent,
|
||||
extra_cycles: usize,
|
||||
audio_device: &AudioDeviceRcRefCell,
|
||||
) {
|
||||
match event {
|
||||
ApuEvent::Sample => self.on_sample(extra_cycles, audio_device),
|
||||
_ => debug!("got {:?} event", event),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Reference in a new issue