Write textures in separate thread; fixes perf

src/emulator.rs

@@ -11,7 +11,7 @@ use std::{
 
 use anyhow::Result;
 
-use crate::{audio::Audio, renderer::GameRenderer};
+use crate::{audio::Audio, graphics::TextureSink};
 use shrooms_vb_core::Sim;
 pub use shrooms_vb_core::VBKey;
 
@@ -30,7 +30,10 @@ pub enum SimId {
     Player2,
 }
 impl SimId {
-    pub fn to_index(self) -> usize {
+    pub const fn values() -> [Self; 2] {
+        [Self::Player1, Self::Player2]
+    }
+    pub const fn to_index(self) -> usize {
         match self {
             Self::Player1 => 0,
             Self::Player2 => 1,
@@ -75,7 +78,7 @@ pub struct Emulator {
     sims: Vec<Sim>,
     audio: Audio,
     commands: mpsc::Receiver<EmulatorCommand>,
-    renderers: HashMap<SimId, GameRenderer>,
+    renderers: HashMap<SimId, TextureSink>,
     running: Arc<AtomicBool>,
     has_game: Arc<AtomicBool>,
 }
@@ -140,11 +143,17 @@ impl Emulator {
                 idle = false;
                 Sim::emulate_many(&mut self.sims);
             }
-            for (sim_id, renderer) in self.renderers.iter_mut() {
-                if let Some(sim) = self.sims.get_mut(sim_id.to_index()) {
-                    if sim.read_pixels(&mut eye_contents) {
-                        idle = false;
-                        renderer.render(&eye_contents);
+            for sim_id in SimId::values() {
+                let Some(renderer) = self.renderers.get_mut(&sim_id) else {
+                    continue;
+                };
+                let Some(sim) = self.sims.get_mut(sim_id.to_index()) else {
+                    continue;
+                };
+                if sim.read_pixels(&mut eye_contents) {
+                    idle = false;
+                    if renderer.queue_render(&eye_contents).is_err() {
+                        self.renderers.remove(&sim_id);
                     }
                 }
             }
@@ -226,7 +235,7 @@ impl Emulator {
 
 #[derive(Debug)]
 pub enum EmulatorCommand {
-    SetRenderer(SimId, GameRenderer),
+    SetRenderer(SimId, TextureSink),
     LoadGame(SimId, PathBuf),
     StartSecondSim(Option<PathBuf>),
     StopSecondSim,