Merge 1d89ef8613 into 0878aa3f02

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "uw8"
-version = "0.3.1"
+version = "0.3.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -11,7 +11,7 @@ native = ["wasmtime", "uw8-window", "cpal", "rubato" ]
 browser = ["warp", "tokio", "tokio-stream", "webbrowser"]
 
 [dependencies]
-wasmtime = { git = "https://github.com/bytecodealliance/wasmtime.git", rev = "0f48f939b9870036562ca02ff21253547a9f1a5c", optional = true }
+wasmtime = { version = "19.0.1", optional = true }
 anyhow = "1"
 env_logger = "0.11.3"
 log = "0.4"

examples/curlywas/tunnel.cwa

@@ -3,16 +3,14 @@ include "../include/microw8-api.cwa"
 export fn upd() {
     let i: i32;
     loop pixels {
-        let inline t = 16!56;
+        let inline t = time() * 63 as f32;
-        let inline x = (i % 320 - 160) as f32;
+        let lazy x = (i % 320 - 160) as f32;
-        let inline y = (i #/ 320 - 120) as f32;
+        let lazy y = (i / 320 - 120) as f32;
-        let inline d = 0xa000 as f32 / sqrt(x * x + y * y);
+        let inline d = 40000 as f32 / sqrt(x * x + y * y);
-        let inline a = atan2(x, y) * 163_f; // (512 / pi)
+        let inline u = atan2(x, y) * (512.0 / 3.141);
-        let inline u = i32.trunc_sat_f32_s(a) + t;
+        let inline c = ((i32.trunc_sat_f32_s(d + t * 2 as f32) ^ i32.trunc_sat_f32_s(u + t)) & 255) >> 4;
-        let inline v = i32.trunc_sat_f32_s(d) + t * 2;
-        let inline c = ((v ^ u) #/ 16) % 16;
         i?FRAMEBUFFER = c;
 
         branch_if (i := i + 1) < 320*240: pixels;
     }
-}
+}

site/content/docs.md

@@ -21,7 +21,7 @@ loaded.
 00000-00040: user memory
 00040-00044: time since module start in ms
 00044-0004c: gamepad state
-0004c-00050: number of frames since module start
+0004c-00050: reserved
 00050-00070: sound data (synced to sound thread)
 00070-00078: reserved
 00078-12c78: frame buffer

src/run_native.rs

@@ -27,7 +27,6 @@ struct UW8Instance {
     end_frame: TypedFunc<(), ()>,
     update: Option<TypedFunc<(), ()>>,
     start_time: Instant,
-    frame_counter: u32,
     watchdog: Arc<Mutex<UW8WatchDog>>,
     sound_tx: Option<mpsc::SyncSender<RegisterUpdate>>,
 }
@@ -160,7 +159,6 @@ impl super::Runtime for MicroW8 {
             end_frame,
             update,
             start_time: Instant::now(),
-            frame_counter: 0,
             watchdog,
             sound_tx,
         });
@@ -193,11 +191,8 @@ impl super::Runtime for MicroW8 {
                 let mem = instance.memory.data_mut(&mut instance.store);
                 mem[64..68].copy_from_slice(&time.to_le_bytes());
                 mem[68..72].copy_from_slice(&input.gamepads);
-                mem[72..76].copy_from_slice(&instance.frame_counter.to_le_bytes());
             }
 
-            instance.frame_counter = instance.frame_counter.wrapping_add(1);
-
             instance.store.set_epoch_deadline(self.timeout as u64);
             if let Some(ref update) = instance.update {
                 if let Err(err) = update.call(&mut instance.store, ()) {
@@ -333,8 +328,9 @@ fn init_sound(
     let mut configs: Vec<_> = device
         .supported_output_configs()?
         .filter(|config| {
-            config.sample_format() == cpal::SampleFormat::F32
+            config.channels() <= 2
-                || config.sample_format() == cpal::SampleFormat::I16
+                && (config.sample_format() == cpal::SampleFormat::F32
+                    || config.sample_format() == cpal::SampleFormat::I16)
         })
         .collect();
 
@@ -536,25 +532,6 @@ fn init_sound(
         }
     }
 
-    fn stereo_to_surround<F>(mut buffer: &mut [f32], num_channels: usize, callback: &mut F)
-    where
-        F: FnMut(&mut [f32]),
-    {
-        let mut in_buffer = [0f32; 256];
-        buffer.fill(0.);
-
-        while !buffer.is_empty() {
-            let step_size = (buffer.len() / num_channels).min(in_buffer.len() / 2);
-            let step_buffer = &mut in_buffer[..step_size * 2];
-            callback(step_buffer);
-            for index in 0..step_size {
-                buffer[index * num_channels + 0] = step_buffer[index * 2 + 0];
-                buffer[index * num_channels + 1] = step_buffer[index * 2 + 1];
-            }
-            buffer = &mut buffer[step_size * num_channels..];
-        }
-    }
-
     let stream = if sample_format == cpal::SampleFormat::F32 {
         if num_channels == 2 {
             device.build_output_stream(
@@ -565,21 +542,10 @@ fn init_sound(
                 },
                 None,
             )?
-        } else if num_channels == 1 {
-            device.build_output_stream(
-                &config,
-                move |buffer: &mut [f32], _| stereo_to_mono(buffer, &mut callback),
-                move |err| {
-                    dbg!(err);
-                },
-                None,
-            )?
         } else {
             device.build_output_stream(
                 &config,
-                move |buffer: &mut [f32], _| {
+                move |buffer: &mut [f32], _| stereo_to_mono(buffer, &mut callback),
-                    stereo_to_surround(buffer, num_channels as usize, &mut callback)
-                },
                 move |err| {
                     dbg!(err);
                 },
@@ -596,24 +562,11 @@ fn init_sound(
                 },
                 None,
             )?
-        } else if num_channels == 1 {
-            device.build_output_stream(
-                &config,
-                move |buffer: &mut [i16], _| {
-                    f32_to_i16(buffer, &mut |b| stereo_to_mono(b, &mut callback))
-                },
-                move |err| {
-                    dbg!(err);
-                },
-                None,
-            )?
         } else {
             device.build_output_stream(
                 &config,
                 move |buffer: &mut [i16], _| {
-                    f32_to_i16(buffer, &mut |b| {
+                    f32_to_i16(buffer, &mut |b| stereo_to_mono(b, &mut callback))
-                        stereo_to_surround(b, num_channels as usize, &mut callback)
-                    })
                 },
                 move |err| {
                     dbg!(err);

web/src/index.html

@@ -10,7 +10,7 @@
     </head>
     <body>
         <div id="uw8">
-            <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.3.1
+            <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.3.0
         </div>
         <div id="centered">
             <canvas class="screen" id="screen" width="320" height="240">

web/src/microw8.js

@@ -240,7 +240,6 @@ export default function MicroW8(screen, config = {}) {
             await audioReadyPromise;
     
             let startTime = Date.now();
-            let frameCounter = 0;
     
             const timePerFrame = 1000 / 60;
 
@@ -307,7 +306,6 @@ export default function MicroW8(screen, config = {}) {
                         let time = Date.now() - startTime;
                         u32Mem[16] = time;
                         u32Mem[17] = pad | gamepad;
-                        u32Mem[18] = frameCounter++;
                         if(instance.exports.upd) {
                             instance.exports.upd();
                         }