clamp snd samples into valid -1.0..1.0 range

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: Rust
 
 on:
   push:
-    branches: [ master, testing ]
+    branches: [ master ]
 
 env:
   CARGO_TERM_COLOR: always

Cargo.toml

@@ -27,5 +27,5 @@ tokio = { version = "1.17.0", features = ["sync", "rt"], optional = true }
 tokio-stream = { version = "0.1.8", features = ["sync"], optional = true }
 webbrowser = { version = "0.6.0", optional = true }
 ansi_term = "0.12.1"
-cpal = { version = "0.13.5", optional = true }
+cpal = { version = "0.14.1", optional = true }
 rubato = { version = "0.11.0", optional = true }

examples/include/microw8-api.cwa

@@ -34,6 +34,7 @@ import "env.rectangle_outline" fn rectangle_outline(f32, f32, f32, f32, i32);
 import "env.circle_outline" fn circle_outline(f32, f32, f32, i32);
 import "env.exp" fn exp(f32) -> f32;
 import "env.playNote" fn playNote(i32, i32);
+import "env.sndGes" fn sndGes(i32) -> f32;
 
 const TIME_MS = 0x40;
 const GAMEPAD = 0x44;

examples/include/microw8-api.wat

@@ -34,6 +34,7 @@
 (import "env" "circle_outline" (func $circle_outline (param f32) (param f32) (param f32) (param i32)))
 (import "env" "exp" (func $exp (param f32) (result f32)))
 (import "env" "playNote" (func $playNote (param i32) (param i32)))
+(import "env" "sndGes" (func $sndGes (param i32) (result f32)))
 
 ;; to use defines, include this file with a preprocessor
 ;; like gpp (https://logological.org/gpp).

platform/Cargo.lock

@@ -391,7 +391,7 @@ checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 [[package]]
 name = "upkr"
 version = "0.1.0"
-source = "git+https://github.com/exoticorn/upkr.git?rev=2e7983fc#2e7983fc650788d98da2eecef2d16f63e849e4a0"
+source = "git+https://github.com/exoticorn/upkr.git?rev=d93aec186c9fb91d962c488682a2db125c61306c#d93aec186c9fb91d962c488682a2db125c61306c"
 dependencies = [
  "anyhow",
  "cdivsufsort",

platform/src/ges.cwa

@@ -10,7 +10,7 @@ const GesState.Size = GesState.Filter + 8*4;
 const GesStateOffset = 32;
 const GesBufferOffset = 32 + GesState.Size;
 
-export fn gesSnd(t: i32) -> f32 {
+export fn sndGes(t: i32) -> f32 {
     let baseAddr = 0!0x12c78;
     if !(t & 127) {
         let i: i32;
@@ -62,7 +62,6 @@ export fn gesSnd(t: i32) -> f32 {
             let phase = channelState!GesChannelState.Phase;
 
             let inline pulseWidth = channelReg?1;
-            let phaseShift = (pulseWidth - 128) * 255;
             let invPhaseInc = 1 as f32 / phaseInc as f32;
 
             i = 0;
@@ -131,7 +130,7 @@ export fn gesSnd(t: i32) -> f32 {
                 let phaseInc = (freq * (65536.0 / 44100.0)) as i32;
 
                 let phase = channelState!GesChannelState.Phase;
-                if modSrc > ch {
+                if modSrc < ch {
                     phase = phase - (phaseInc << 6);
                 }
 

platform/src/platform.cwa

@@ -372,16 +372,7 @@ export fn printChar(char: i32) {
 global mut controlCodeLength = 0;
 
 fn printSingleChar(char: i32) {
-    if char >= 4 & char <= 6 {
-        outputChannel = char - 4;
-        if !outputChannel {
-            textCursorX = 0;
-            textCursorY = 0;
-        }
-        return;
-    }
-
-    if outputChannel >= 2 {
+    if outputChannel >= 2 & (char < 4 | char > 6) {
         logChar(char);
         return;
     }
@@ -399,6 +390,15 @@ fn printSingleChar(char: i32) {
         return;
     }
 
+    if char >= 4 & char <= 6 {
+        outputChannel = char - 4;
+        if !outputChannel {
+            textCursorX = 0;
+            textCursorY = 0;
+        }
+        return;
+    }
+
     if char == 7 {
         80?0 = 80?0 ^ 2;
         return;

site/content/_index.md

@@ -29,6 +29,19 @@ Examplers for older versions:
 
 ## Versions
 
+### v0.2.1
+
+* [Web runtime](v0.2.1)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.1/microw8-0.2.1-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.1/microw8-0.2.1-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.1/microw8-0.2.1-windows.zip)
+
+Changes:
+
+* new gpu accelerated renderer with (optional) crt filter
+* optimized `hline` function, a big speed-up when drawing large filled circles or rectangles
+* print fractional size of packed `uw8` cart
+
 ### v0.2.0
 
 * [Web runtime](v0.2.0)

site/static/v0.2.1/index.html

@@ -0,0 +1 @@
+<!doctype html><html><head><meta charset="utf8"><title>MicroW8</title><link href="https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@500&display=swap" rel="stylesheet"><style>html,body,canvas{margin:0;padding:0}html{color:#808070;height:100%;background-color:#202024;font-family:Josefin Sans,Verdana,Arial Black,sans-serif}body{height:100%;grid-template-rows:1fr 0fr;display:grid}#uw8{position:absolute}#uw8 a{font-size:130%}#centered{place-self:center}a{color:#303630}a:hover{color:#405040}.screen{width:320px;height:240px;image-rendering:pixelated;background-color:#202428;border:4px solid #303040;margin-bottom:8px;box-shadow:5px 5px 20px #000}#screen{cursor:none}#start{font-size:150%}#timer:before{content:"";width:12px;height:12px;background-color:red;border-radius:6px;margin-right:3px;display:inline-block}#message{margin-bottom:8px}.error{color:#e04030}button{color:#808070;background-color:#303440;border:1px solid #404040;border-radius:4px;padding:4px;font-family:inherit}button:hover{background-color:#202010}button:active{background-color:#504450}@media (min-width:680px) and (min-height:620px){.screen{width:640px;height:480px}}@media (min-width:1000px) and (min-height:800px){.screen{width:960px;height:720px}}@media (width:640px) and (height:480px){.screen{width:640px;height:480px;border:0;margin:0}body{overflow:hidden}}</style></head><body> <div id="uw8"> <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.2.1 </div> <div id="centered"> <canvas class="screen" id="screen" width="320" height="240"> </canvas> <button class="screen" id="start" style="display:none">Click to start</button> <div id="timer" hidden></div> <div id="message"></div> <button id="cartButton" style="visibility:hidden">Load cart...</button> </div> <div id="footer"> <a href="http://unlicense.org/" ref="license">Unlicense</a> </div> </body><script type="module">function e(e){return e&&e.__esModule?e.default:e}class t extends AudioWorkletNode{constructor(e){super(e,"apu",{outputChannelCount:[2]})}}let a=(...e)=>new Uint8Array(...e),n=(...e)=>new Uint32Array(...e);let s=function(s,A={}){A.setMessage||(A.setMessage=(e,t)=>{t&&console.log("error: "+t)});let r,B,o,i,l,d,F,u,g=s.getContext("2d"),c=g.createImageData(320,240),D=A.devkitMode,C=0,f=null==A.keyboardElement?s:A.keyboardElement;if(f){let e=e=>{let t,a="keydown"==e.type;switch(e.code){case"ArrowUp":t=1;break;case"ArrowDown":t=2;break;case"ArrowLeft":t=4;break;case"ArrowRight":t=8;break;case"KeyZ":t=16;break;case"KeyX":t=32;break;case"KeyA":t=64;break;case"KeyS":t=128;break;case"KeyR":a&&w(B,!0);break;case"F9":a&&s.toBlob((e=>{h(e,".png")})),e.preventDefault();break;case"F10":a&&function(){if(l)return l.stop(),l=null,F.disconnect(u),F=null,void(u=null);let e=s.captureStream();u=o.createMediaStreamDestination(),F=i,i.connect(u),e.addTrack(u.stream.getAudioTracks()[0]),l=new MediaRecorder(e,{mimeType:"video/webm",videoBitsPerSecond:25e6});let t=[];l.ondataavailable=e=>{t.push(e.data)};let a=A.timerElement;a&&(a.hidden=!1,a.innerText="00:00");function n(){if(d){if(a){let e=Math.floor((Date.now()-d)/1e3);a.innerText=Math.floor(e/60).toString().padStart(2,"0")+":"+(e%60).toString().padStart(2,"0")}setTimeout(n,1e3)}}l.onstop=()=>{a&&(a.hidden=!0),h(new Blob(t,{type:"video/webm"}),".webm")},l.start(),d=Date.now(),setTimeout(n,1e3)}(),e.preventDefault()}a?C|=t:C&=~t};f.onkeydown=e,f.onkeyup=e}async function w(l,d){r&&(r(),r=null),o=new AudioContext({sampleRate:44100});let F=!0,u=new AbortController;r=()=>{o.close(),F=!1,u.abort()};let f=l.byteLength;if(A.setMessage(f),0==f)return;await 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truncated

site/templates/index.html

@@ -4,7 +4,7 @@
         <section>
             <h1 class="text-center heading-text">A WebAssembly based fantasy console</h1>
         </section>
-        <a href="v0.2.0">
+        <a href="v0.2.1">
             <img class="demonstration-gif" style="width:640px;height:480px;image-rendering:pixelated" src="img/technotunnel.png"></img>
         </a>
     </div>

src/main.rs

@@ -81,11 +81,12 @@ fn run(mut args: Arguments) -> Result<()> {
     #[cfg(not(feature = "native"))]
     let run_browser = args.contains(["-b", "--browser"]) || true;
 
+    #[allow(unused)]
     let disable_audio = args.contains(["-m", "--no-audio"]);
 
     #[cfg(feature = "native")]
     let window_config = {
-        let mut config = WindowConfig::default();
+        let mut config = uw8_window::WindowConfig::default();
         if !run_browser {
             config.parse_arguments(&mut args);
         }
@@ -98,8 +99,6 @@ fn run(mut args: Arguments) -> Result<()> {
 
     use std::process::exit;
 
-    use uw8_window::WindowConfig;
-
     let mut runtime: Box<dyn Runtime> = if !run_browser {
         #[cfg(not(feature = "native"))]
         unimplemented!();

src/run-web.html

@@ -1 +1 @@
-<!doctype html><html><head><meta charset="utf8"><title>uw8-run</title><style>html,body,canvas{background-color:#202024;margin:0;padding:0}html{height:100%}body{height:100%;grid-template-rows:1fr;display:grid}#screen{image-rendering:pixelated;border:4px solid #303040;place-self:center}#message{width:calc(100% - 16px);color:#c64;z-index:2;background-color:#0006;padding:8px;font:700 12pt sans-serif;position:absolute}@media (min-width:648px) and (min-height:488px){#screen{width:640px;height:480px}}@media (min-width:968px) and (min-height:728px){#screen{width:960px;height:720px}}</style></head><body> <canvas id="screen" width="320" height="240" tabindex="1"> </canvas> <div id="message"></div> </body><script type="module">function e(e){return e&&e.__esModule?e.default:e}class t extends AudioWorkletNode{constructor(e){super(e,"apu",{outputChannelCount:[2]})}}let A=(...e)=>new Uint8Array(...e),a=(...e)=>new Uint32Array(...e);let 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+<!doctype html><html><head><meta charset="utf8"><title>uw8-run</title><style>html,body,canvas{background-color:#202024;margin:0;padding:0}html{height:100%}body{height:100%;grid-template-rows:1fr;display:grid}#screen{image-rendering:pixelated;border:4px solid #303040;place-self:center}#message{width:calc(100% - 16px);color:#c64;z-index:2;background-color:#0006;padding:8px;font:700 12pt sans-serif;position:absolute}@media (min-width:648px) and (min-height:488px){#screen{width:640px;height:480px}}@media (min-width:968px) and (min-height:728px){#screen{width:960px;height:720px}}</style></head><body> <canvas id="screen" width="320" height="240" tabindex="1"> </canvas> <div id="message"></div> </body><script type="module">function e(e){return e&&e.__esModule?e.default:e}class t extends AudioWorkletNode{constructor(e){super(e,"apu",{outputChannelCount:[2]})}}let A=(...e)=>new Uint8Array(...e),a=(...e)=>new Uint32Array(...e);let s=function(s,B={}){B.setMessage||(B.setMessage=(e,t)=>{t&&console.log("error: "+t)});let n,r,o,i,l,F,d,C,D=s.getContext("2d"),u=D.createImageData(320,240),c=B.devkitMode,Q=0,f=null==B.keyboardElement?s:B.keyboardElement;if(f){let e=e=>{let t,A="keydown"==e.type;switch(e.code){case"ArrowUp":t=1;break;case"ArrowDown":t=2;break;case"ArrowLeft":t=4;break;case"ArrowRight":t=8;break;case"KeyZ":t=16;break;case"KeyX":t=32;break;case"KeyA":t=64;break;case"KeyS":t=128;break;case"KeyR":A&&g(r,!0);break;case"F9":A&&s.toBlob((e=>{h(e,".png")})),e.preventDefault();break;case"F10":A&&function(){if(l)return l.stop(),l=null,d.disconnect(C),d=null,void(C=null);let e=s.captureStream();C=o.createMediaStreamDestination(),d=i,i.connect(C),e.addTrack(C.stream.getAudioTracks()[0]),l=new MediaRecorder(e,{mimeType:"video/webm",videoBitsPerSecond:25e6});let t=[];l.ondataavailable=e=>{t.push(e.data)};let A=B.timerElement;A&&(A.hidden=!1,A.innerText="00:00");function a(){if(F){if(A){let e=Math.floor((Date.now()-F)/1e3);A.innerText=Math.floor(e/60).toString().padStart(2,"0")+":"+(e%60).toString().padStart(2,"0")}setTimeout(a,1e3)}}l.onstop=()=>{A&&(A.hidden=!0),h(new Blob(t,{type:"video/webm"}),".webm")},l.start(),F=Date.now(),setTimeout(a,1e3)}(),e.preventDefault()}A?Q|=t:Q&=~t};f.onkeydown=e,f.onkeyup=e}async function g(l,F){n&&(n(),n=null),o=new AudioContext({sampleRate:44100});let d=!0,C=new AbortController;n=()=>{o.close(),d=!1,C.abort()};let f=l.byteLength;if(B.setMessage(f),0==f)return;await o.audioWorklet.addModule(e("data:application/javascript,let%20e%3D%28...e%29%3D%3Enew%20Uint8Array%28...e%29%3Bclass%20s%20extends%20AudioWorkletProcessor%7Bconstructor%28%29%7Bsuper%28%29%2Cthis.sampleIndex%3D0%2Cthis.currentTime%3D0%2Cthis.isFirstMessage%3D%210%2Cthis.pendingUpdates%3D%5B%5D%2Cthis.port.onmessage%3De%3D%3E%7Bthis.memory%3F%28this.isFirstMessage%26%26%28this.currentTime%2B%3D%28e.data.t-this.currentTime%29%2F8%2Cthis.isFirstMessage%3D%211%29%2Cthis.pendingUpdates.push%28e.data%29%29%3Athis.load%28e.data%5B0%5D%2Ce.data%5B1%5D%29%7D%7Dasync%20load%28e%2Cs%29%7Blet%20t%3Dnew%20WebAssembly.Memory%28%7Binitial%3A4%2Cmaximum%3A4%7D%29%2Ci%3D%7Benv%3A%7Bmemory%3At%7D%7D%3Bfor%28let%20e%20of%5B%22acos%22%2C%22asin%22%2C%22atan%22%2C%22atan2%22%2C%22cos%22%2C%22exp%22%2C%22log%22%2C%22sin%22%2C%22tan%22%2C%22pow%22%5D%29i.env%5Be%5D%3DMath%5Be%5D%3Bfor%28let%20e%3D9%3Be%3C64%3B%2B%2Be%29i.env%5B%22reserved%22%2Be%5D%3D%28%29%3D%3E%7B%7D%3Blet%20r%3D%22%22%3Bi.env.logChar%3De%3D%3E%7B10%3D%3De%3F%28console.log%28r%29%2Cr%3D%22%22%29%3Ar%2B%3DString.fromCharCode%28e%29%7D%3Bfor%28let%20e%3D0%3Be%3C16%3B%2B%2Be%29i.env%5B%22g_reserved%22%2Be%5D%3D0%3Blet%20n%3Dasync%20e%3D%3E%28await%20WebAssembly.instantiate%28e%2Ci%29%29.instance%2Ca%3Dawait%20n%28e%29%3Bfor%28let%20e%20in%20a.exports%29i.env%5Be%5D%3Da.exports%5Be%5D%3Blet%20o%3Dawait%20n%28s%29%3Bthis.memory%3Dt%2Cthis.snd%3Do.exports.snd%7C%7Ca.exports.sndGes%2Cthis.port.postMessage%282%29%7Dprocess%28s%2Ct%2Ci%29%7Bif%28this.isFirstMessage%3D%210%2Cthis.snd%29%7Bfor%28%3Bthis.pendingUpdates.length%3E0%26%26this.pendingUpdates%5B0%5D.t%3C%3Dthis.currentTime%3B%29e%28this.memory.buffer%2C80%2C32%29.set%28e%28this.pendingUpdates.shift%28%29.r%29%29%3Bnew%20Uint32Array%28this.memory.buffer%29%5B16%5D%3Dthis.currentTime%3Blet%20s%3Dt%5B0%5D%2Ci%3Dthis.sampleIndex%2Cr%3Ds%5B0%5D.length%3Bfor%28let%20e%3D0%3Be%3Cr%3B%2B%2Be%29s%5B0%5D%5Be%5D%3Dthis.snd%28i%2B%2B%29%2Cs%5B1%5D%5Be%5D%3Dthis.snd%28i%2B%2B%29%3Bthis.sampleIndex%3D4294967295%26i%2Cthis.currentTime%2B%3Dr%2F44.1%7Dreturn%210%7D%7DregisterProcessor%28%22apu%22%2Cs%29%3B")),i=new t(o);let h,m=0,w=new Promise((e=>h=e)),p=e=>{m|=e,3==m&&h&&(h(!0),h=null)},y=()=>{"suspended"==o.state?(B.startButton&&(B.startButton.style="",s.style="display:none"),(B.startButton||s).onclick=()=>{o.resume()}):(B.startButton&&(B.startButton.style="display:none",s.style=""),p(1))};o.onstatechange=y,y(),r=l;let E=window.location.pathname;if(f<=1024&&!F){let e="";for(let t of A(l))e+=String.fromCharCode(t);E+="#"+btoa(e),E!=window.locLine truncated

src/run_native.rs

@@ -134,6 +134,10 @@ impl super::Runtime for MicroW8 {
         let end_frame = platform_instance.get_typed_func::<(), (), _>(&mut store, "endFrame")?;
         let update = instance.get_typed_func::<(), (), _>(&mut store, "upd").ok();
 
+        if let Some(start) = instance.get_typed_func::<(), (), _>(&mut store, "start").ok() {
+            start.call(&mut store, ())?;
+        }
+
         let (sound_tx, stream) = if self.disable_audio {
             (None, None)
         } else {
@@ -314,7 +318,7 @@ fn init_sound(
 
     let snd = instance
         .get_typed_func::<(i32,), f32, _>(&mut store, "snd")
-        .or_else(|_| platform_instance.get_typed_func::<(i32,), f32, _>(&mut store, "gesSnd"))?;
+        .or_else(|_| platform_instance.get_typed_func::<(i32,), f32, _>(&mut store, "sndGes"))?;
 
     let host = cpal::default_host();
     let device = host
@@ -342,7 +346,7 @@ fn init_sound(
         .ok_or_else(|| anyhow!("Could not find float output config"))?;
     let sample_rate = cpal::SampleRate(44100)
         .max(config.min_sample_rate())
-        .max(config.max_sample_rate());
+        .min(config.max_sample_rate());
     let config = config.with_sample_rate(sample_rate);
     let buffer_size = match *config.buffer_size() {
         cpal::SupportedBufferSize::Unknown => cpal::BufferSize::Default,
@@ -419,6 +423,14 @@ fn init_sound(
                     mem[64..68].copy_from_slice(&current_time.to_le_bytes());
                 }
 
+                fn clamp_sample(s: f32) -> f32 {
+                    if s.is_nan() {
+                        0.0
+                    } else {
+                        s.max(-1.0).min(1.0)
+                    }
+                }
+
                 if let Some(ref mut resampler) = resampler {
                     while !buffer.is_empty() {
                         let copy_size = resampler.output_buffers[0]
@@ -429,10 +441,12 @@ fn init_sound(
                             resampler.input_buffers[0].clear();
                             resampler.input_buffers[1].clear();
                             for _ in 0..resampler.resampler.input_frames_next() {
-                                resampler.input_buffers[0]
-                                    .push(snd.call(&mut store, (sample_index,)).unwrap_or(0.0));
-                                resampler.input_buffers[1]
-                                    .push(snd.call(&mut store, (sample_index + 1,)).unwrap_or(0.0));
+                                resampler.input_buffers[0].push(clamp_sample(
+                                    snd.call(&mut store, (sample_index,)).unwrap_or(0.0),
+                                ));
+                                resampler.input_buffers[1].push(clamp_sample(
+                                    snd.call(&mut store, (sample_index + 1,)).unwrap_or(0.0),
+                                ));
                                 sample_index = sample_index.wrapping_add(2);
                             }
 
@@ -458,7 +472,7 @@ fn init_sound(
                     }
                 } else {
                     for v in buffer {
-                        *v = snd.call(&mut store, (sample_index,)).unwrap_or(0.0);
+                        *v = clamp_sample(snd.call(&mut store, (sample_index,)).unwrap_or(0.0));
                         sample_index = sample_index.wrapping_add(1);
                     }
                 }

src/run_web.rs

@@ -11,6 +11,7 @@ use warp::{http::Response, Filter};
 pub struct RunWebServer {
     cart: Arc<Mutex<Vec<u8>>>,
     tx: broadcast::Sender<()>,
+    socket_addr: SocketAddr,
 }
 
 impl RunWebServer {
@@ -18,8 +19,13 @@ impl RunWebServer {
         let cart = Arc::new(Mutex::new(Vec::new()));
         let (tx, _) = broadcast::channel(1);
 
+        let socket_addr = "127.0.0.1:3030"
+            .parse::<SocketAddr>()
+            .expect("Failed to parse socket address");
+
         let server_cart = cart.clone();
         let server_tx = tx.clone();
+        let server_addr = socket_addr.clone();
         thread::spawn(move || {
             let rt = tokio::runtime::Builder::new_current_thread()
                 .enable_io()
@@ -47,24 +53,26 @@ impl RunWebServer {
                     warp::sse::reply(warp::sse::keep_alive().stream(event_stream(&server_tx)))
                 });
 
-                let socket_addr = "127.0.0.1:3030"
-                    .parse::<SocketAddr>()
-                    .expect("Failed to parse socket address");
-
-                let server_future = warp::serve(html.or(cart).or(events)).bind(socket_addr);
-                println!("Point browser at http://{}", socket_addr);
-                let _ignore_result = webbrowser::open(&format!("http://{}", socket_addr));
+                let server_future = warp::serve(html.or(cart).or(events)).bind(server_addr);
                 server_future.await
             });
         });
 
-        RunWebServer { cart, tx }
+        RunWebServer {
+            cart,
+            tx,
+            socket_addr,
+        }
     }
 }
 
 impl super::Runtime for RunWebServer {
     fn load(&mut self, module_data: &[u8]) -> Result<()> {
         if let Ok(mut lock) = self.cart.lock() {
+            if lock.is_empty() && !module_data.is_empty() {
+                println!("Point browser at http://{}", self.socket_addr);
+                let _ignore_result = webbrowser::open(&format!("http://{}", self.socket_addr));
+            }
             lock.clear();
             lock.extend_from_slice(module_data);
         }
@@ -86,4 +94,4 @@ impl Default for RunWebServer {
     fn default() -> RunWebServer {
         RunWebServer::new()
     }
-}
+}

test/start_fn.cwa

@@ -0,0 +1,5 @@
+include "../examples/include/microw8-api.cwa"
+
+export fn start() {
+	printChar('Test');
+}

test/text_modes.cwa

@@ -0,0 +1,13 @@
+include "../examples/include/microw8-api.cwa"
+
+export fn upd() {
+	printString(USER_MEM);
+}
+
+data USER_MEM {
+	i8(12, 31, 5, 6) "Text mode"
+	i8(5, 31, 4, 5) "Graphics mode"
+	i8(6) "Console output\nSecond line\n"
+	i8(4, 31, 4, 12) "Back to text mode"
+	i8(0)
+}

todo.txt

@@ -0,0 +1 @@
+* add support for 16bit sound (not just float)

uw8-tool/src/base_module.rs

@@ -167,6 +167,7 @@ impl BaseModule {
         add_function(&mut functions, &type_map, "exp", &[F32], Some(F32));
 
         add_function(&mut functions, &type_map, "playNote", &[I32, I32], None);
+        add_function(&mut functions, &type_map, "sndGes", &[I32], Some(F32));
 
         for i in functions.len()..64 {
             add_function(

uw8-tool/src/pack.rs

@@ -220,6 +220,11 @@ impl<'a> ParsedModule<'a> {
                     validate_table_section(reader)?;
                     table_section = Some(Section::new(range, ()));
                 }
+                Payload::MemorySection(reader) => {
+                    if reader.get_count() != 0 {
+                        bail!("Found non-empty MemorySection. Memory has to be imported!");
+                    }
+                }
                 Payload::ElementSection(mut reader) => {
                     let mut elements = Vec::with_capacity(reader.get_count() as usize);
                     for _ in 0..reader.get_count() {

uw8-window/src/lib.rs

@@ -4,31 +4,64 @@ use std::time::Instant;
 mod cpu;
 mod gpu;
 
-pub struct Window(Box<dyn WindowImpl>);
+pub struct Window {
+    inner: Box<dyn WindowImpl>,
+    fps_counter: Option<FpsCounter>,
+}
+
+struct FpsCounter {
+    start: Instant,
+    num_frames: u32,
+}
 
 impl Window {
     pub fn new(config: WindowConfig) -> Result<Window> {
+        let fps_counter = if config.fps_counter {
+            Some(FpsCounter {
+                start: Instant::now(),
+                num_frames: 0,
+            })
+        } else {
+            None
+        };
         if config.enable_gpu {
             match gpu::Window::new(config) {
-                Ok(window) => return Ok(Window(Box::new(window))),
+                Ok(window) => {
+                    return Ok(Window {
+                        inner: Box::new(window),
+                        fps_counter,
+                    })
+                }
                 Err(err) => eprintln!(
                     "Failed to create gpu window: {}\nFalling back tp cpu window",
                     err
                 ),
             }
         }
-        cpu::Window::new().map(|window| Window(Box::new(window)))
+        cpu::Window::new().map(|window| Window {
+            inner: Box::new(window),
+            fps_counter,
+        })
     }
 
     pub fn begin_frame(&mut self) -> Input {
-        self.0.begin_frame()
+        self.inner.begin_frame()
     }
     pub fn end_frame(&mut self, framebuffer: &[u8], palette: &[u8], next_frame: Instant) {
-        self.0.end_frame(framebuffer, palette, next_frame)
+        self.inner.end_frame(framebuffer, palette, next_frame);
+        if let Some(ref mut fps_counter) = self.fps_counter {
+            fps_counter.num_frames += 1;
+            let elapsed = fps_counter.start.elapsed().as_secs_f32();
+            if elapsed >= 1.0 {
+                println!("fps: {:.1}", fps_counter.num_frames as f32 / elapsed);
+                fps_counter.num_frames = 0;
+                fps_counter.start = Instant::now();
+            }
+        }
     }
 
     pub fn is_open(&self) -> bool {
-        self.0.is_open()
+        self.inner.is_open()
     }
 }
 
@@ -37,6 +70,7 @@ pub struct WindowConfig {
     enable_gpu: bool,
     filter: u32,
     fullscreen: bool,
+    fps_counter: bool,
 }
 
 impl Default for WindowConfig {
@@ -45,6 +79,7 @@ impl Default for WindowConfig {
             enable_gpu: true,
             filter: 5,
             fullscreen: false,
+            fps_counter: false,
         }
     }
 }
@@ -66,6 +101,7 @@ impl WindowConfig {
             }
         }
         self.fullscreen = args.contains("--fullscreen");
+        self.fps_counter = args.contains("--fps");
     }
 }
 

web/src/audiolet.js

@@ -63,7 +63,7 @@ class APU extends AudioWorkletProcessor {
 
         this.memory = memory;
 
-        this.snd = instance.exports.snd || platform_instance.exports.gesSnd;
+        this.snd = instance.exports.snd || platform_instance.exports.sndGes;
 
         this.port.postMessage(2);
     }

web/src/microw8.js

@@ -263,6 +263,10 @@ export default function MicroW8(screen, config = {}) {
             window.addEventListener('blur', () => updateVisibility(false), { signal: abortController.signal });
             updateVisibility(document.hasFocus());
 
+            if (instance.exports.start) {
+                instance.exports.start();
+            }
+
             function mainloop() {
                 if (!keepRunning) {
                     return;