update zig example

fixes carts running too slow in chrome

Cargo.toml

@@ -11,21 +11,21 @@ native = ["wasmtime", "uw8-window", "cpal", "rubato" ]
 browser = ["warp", "tokio", "tokio-stream", "webbrowser"]
 
 [dependencies]
-wasmtime = { version = "12.0.0", optional = true }
+wasmtime = { version = "5.0.0", optional = true }
 anyhow = "1"
 env_logger = "0.10"
 log = "0.4"
 uw8-window = { path = "uw8-window", optional = true }
-notify-debouncer-mini = { version = "0.4.1", default-features = false }
+notify-debouncer-mini = { version = "0.2.1", default-features = false }
 pico-args = "0.5"
 curlywas = { git = "https://github.com/exoticorn/curlywas.git", rev = "0e7ea50" }
 wat = "1"
 uw8-tool = { path = "uw8-tool" }
 same-file = "1"
-warp = { version = "0.3.5", optional = true }
-tokio = { version = "1.32.0", features = ["sync", "rt"], optional = true }
-tokio-stream = { version = "0.1.14", features = ["sync"], optional = true }
-webbrowser = { version = "0.8.11", optional = true }
+warp = { version = "0.3.3", optional = true }
+tokio = { version = "1.24.0", features = ["sync", "rt"], optional = true }
+tokio-stream = { version = "0.1.11", features = ["sync"], optional = true }
+webbrowser = { version = "0.8.6", optional = true }
 ansi_term = "0.12.1"
-cpal = { version = "0.15.2", optional = true }
-rubato = { version = "0.14.0", optional = true }
+cpal = { version = "0.14.2", optional = true }
+rubato = { version = "0.12.0", optional = true }

examples/curlywas/sprites.cwa

@@ -0,0 +1,21 @@
+include "../include/microw8-api.cwa"
+
+const SPRITE = 0x20000;
+
+export fn upd() {
+	cls(0);
+	let t = time();
+	let i: i32;
+	loop spriteLoop {
+		let inline x = sin(t * -1.3 + i as f32 / 8_f) * 180_f + 160_f;
+		let inline y = sin(t * 1.7 + i as f32 / 9_f) * 140_f + 120_f;
+		blitSprite(SPRITE, 16, x as i32, y as i32, 0x100);
+		branch_if (i +:= 1) < 200: spriteLoop;
+	}
+}
+
+start fn start() {
+	printChar('OO');
+	circle(8_f, 8_f, 6_f, 75);
+	grabSprite(SPRITE, 16, 0, 0, 0);
+}

examples/include/microw8-api.cwa

@@ -30,11 +30,13 @@ import "env.printInt" fn printInt(i32);
 import "env.setTextColor" fn setTextColor(i32);
 import "env.setBackgroundColor" fn setBackgroundColor(i32);
 import "env.setCursorPosition" fn setCursorPosition(i32, i32);
-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.rectangleOutline" fn rectangleOutline(f32, f32, f32, f32, i32);
+import "env.circleOutline" fn circleOutline(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;
+import "env.blitSprite" fn blitSprite(i32, i32, i32, i32, i32);
+import "env.grabSprite" fn grabSprite(i32, i32, i32, i32, i32);
 
 const TIME_MS = 0x40;
 const GAMEPAD = 0x44;

examples/include/microw8-api.wat

@@ -30,11 +30,13 @@
 (import "env" "setTextColor" (func $setTextColor (param i32)))
 (import "env" "setBackgroundColor" (func $setBackgroundColor (param i32)))
 (import "env" "setCursorPosition" (func $setCursorPosition (param i32) (param i32)))
-(import "env" "rectangle_outline" (func $rectangle_outline (param f32) (param f32) (param f32) (param f32) (param i32)))
-(import "env" "circle_outline" (func $circle_outline (param f32) (param f32) (param f32) (param i32)))
+(import "env" "rectangleOutline" (func $rectangleOutline (param f32) (param f32) (param f32) (param f32) (param i32)))
+(import "env" "circleOutline" (func $circleOutline (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)))
+(import "env" "blitSprite" (func $blitSprite (param i32) (param i32) (param i32) (param i32) (param i32)))
+(import "env" "grabSprite" (func $grabSprite (param i32) (param i32) (param i32) (param i32) (param i32)))
 
 ;; to use defines, include this file with a preprocessor
 ;; like gpp (https://logological.org/gpp).

examples/zig/build.zig

@@ -5,11 +5,7 @@ pub fn build(b: *std.build.Builder) void {
 
     const lib = b.addSharedLibrary("cart", "main.zig", .unversioned);
     lib.setBuildMode(mode);
-    lib.setTarget(.{
-        .cpu_arch = .wasm32,
-        .os_tag = .freestanding,
-        .cpu_features_add = std.Target.wasm.featureSet(&.{ .nontrapping_fptoint })
-    });
+    lib.setTarget(.{ .cpu_arch = .wasm32, .os_tag = .freestanding, .cpu_features_add = std.Target.wasm.featureSet(&.{.nontrapping_fptoint}) });
     lib.import_memory = true;
     lib.initial_memory = 262144;
     lib.max_memory = 262144;
@@ -18,19 +14,13 @@ pub fn build(b: *std.build.Builder) void {
     lib.install();
 
     if (lib.install_step) |install_step| {
-        const run_filter_exports = b.addSystemCommand(&[_][]const u8{
-            "uw8", "filter-exports", "zig-out/lib/cart.wasm", "zig-out/lib/cart-filtered.wasm"
-        });
+        const run_filter_exports = b.addSystemCommand(&[_][]const u8{ "uw8", "filter-exports", "zig-out/lib/cart.wasm", "zig-out/lib/cart-filtered.wasm" });
         run_filter_exports.step.dependOn(&install_step.step);
 
-        const run_wasm_opt = b.addSystemCommand(&[_][]const u8{
-            "wasm-opt", "-Oz", "-o", "zig-out/cart.wasm", "zig-out/lib/cart-filtered.wasm"
-        });
+        const run_wasm_opt = b.addSystemCommand(&[_][]const u8{ "wasm-opt", "--enable-nontrapping-float-to-int", "-Oz", "-o", "zig-out/cart.wasm", "zig-out/lib/cart-filtered.wasm" });
         run_wasm_opt.step.dependOn(&run_filter_exports.step);
 
-        const run_uw8_pack = b.addSystemCommand(&[_][]const u8{
-            "uw8", "pack", "-l", "9", "zig-out/cart.wasm", "zig-out/cart.uw8"
-        });
+        const run_uw8_pack = b.addSystemCommand(&[_][]const u8{ "uw8", "pack", "-l", "9", "zig-out/cart.wasm", "zig-out/cart.uw8" });
         run_uw8_pack.step.dependOn(&run_wasm_opt.step);
 
         const make_opt = b.step("make_opt", "make size optimized cart");

examples/zig/main.zig

@@ -1,11 +1,11 @@
 extern fn atan2(x: f32, y: f32) f32;
 extern fn time() f32;
 
-pub const FRAMEBUFFER: *[320*240]u8 = @intToPtr(*[320*240]u8, 120);
+pub const FRAMEBUFFER: *[320 * 240]u8 = @intToPtr(*[320 * 240]u8, 120);
 
 export fn upd() void {
     var i: u32 = 0;
-    while(true) {
+    while (true) {
         var t = time() * 63.0;
         var x = @intToFloat(f32, (@intCast(i32, i % 320) - 160));
         var y = @intToFloat(f32, (@intCast(i32, i / 320) - 120));
@@ -13,8 +13,10 @@ export fn upd() void {
         var u = atan2(x, y) * 512.0 / 3.141;
         var c = @intCast(u8, (@floatToInt(i32, d + t * 2.0) ^ @floatToInt(i32, u + t)) & 255) >> 4;
 
-        FRAMEBUFFER[@as(usize, i)] = c;
+        FRAMEBUFFER[i] = c;
         i += 1;
-        if(i >= 320*240) { break; }
+        if (i >= 320 * 240) {
+            break;
+        }
     }
-}
+}

platform/src/ges.cwa

@@ -62,6 +62,7 @@ export fn sndGes(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;
@@ -130,7 +131,7 @@ export fn sndGes(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

@@ -171,7 +171,7 @@ export fn rectangle(x: f32, y: f32, w: f32, h: f32, col: i32) {
     }
 }
 
-export fn rectangle_outline(x: f32, y: f32, w: f32, h: f32, col: i32) {
+export fn rectangleOutline(x: f32, y: f32, w: f32, h: f32, col: i32) {
     let xl = nearest(x) as i32;
     let xr = nearest(x + w) as i32;
     let yt = nearest(y) as i32;
@@ -212,7 +212,7 @@ export fn circle(cx: f32, cy: f32, radius: f32, col: i32) {
     }
 }
 
-export fn circle_outline(cx: f32, cy: f32, radius: f32, col: i32) {
+export fn circleOutline(cx: f32, cy: f32, radius: f32, col: i32) {
     let prev_w: f32;
     let y = clamp(nearest(cy - radius) as i32, -1, 241);
     let maxY = clamp(nearest(cy + radius) as i32, -1, 241);
@@ -352,6 +352,92 @@ export fn line(x1: f32, y1: f32, x2: f32, y2: f32, col: i32) {
     setPixel(i32.trunc_sat_f32_s(x1 + f * dx), i32.trunc_sat_f32_s(y1 + f * dy), col);
 }
 
+export fn blitSprite(sprite: i32, size: i32, x: i32, y: i32, control: i32) {
+    let lazy width = size & 65535;
+    let lazy height = select(size >> 16, size >> 16, width);
+
+    let lazy x0 = select(x < 0, -x, 0);
+    let lazy x1 = select(x + width > 320, 320 - x, width);
+    let lazy y0 = select(y < 0, -y, 0);
+    let lazy y1 = select(y + height > 240, 240 - y, height);
+
+    let lazy numRows = y1 - y0;
+    let lazy numCols = x1 - x0;
+    if numRows <= 0 | numCols <= 0 {
+        return;
+    }
+
+    let trans = (control & 511) - 256;
+    let lazy flip_x = 1 - ((control >> 8) & 2);
+    let lazy flip_y = 1 - ((control >> 9) & 2);
+    if flip_x < 0 {
+        sprite += width - 1;
+    }
+    if flip_y < 0 {
+        sprite += (height - 1) * width;
+    }
+
+    let spriteRow = sprite + x0 * flip_x + y0 * flip_y * width;
+    let screenRow = x + x0 + (y + y0) * 320;
+
+    loop yloop {
+        let lx = 0;
+        loop xloop {
+            let lazy col = (spriteRow + lx * flip_x)?0;
+            if col != trans {
+                (screenRow + lx)?120 = col;
+            }
+            branch_if (lx +:= 1) < numCols: xloop;
+        }
+        spriteRow += width * flip_y;
+        screenRow += 320;
+        branch_if numRows -:= 1: yloop;
+    }
+}
+
+export fn grabSprite(sprite: i32, size: i32, x: i32, y: i32, control: i32) {
+    let lazy width = size & 65535;
+    let lazy height = select(size >> 16, size >> 16, width);
+
+    let lazy x0 = select(x < 0, -x, 0);
+    let lazy x1 = select(x + width > 320, 320 - x, width);
+    let lazy y0 = select(y < 0, -y, 0);
+    let lazy y1 = select(y + height > 240, 240 - y, height);
+
+    let lazy numRows = y1 - y0;
+    let lazy numCols = x1 - x0;
+    if numRows <= 0 | numCols <= 0 {
+        return;
+    }
+
+    let trans = (control & 511) - 256;
+    let lazy flip_x = 1 - ((control >> 8) & 2);
+    let lazy flip_y = 1 - ((control >> 9) & 2);
+    if flip_x < 0 {
+        sprite += width - 1;
+    }
+    if flip_y < 0 {
+        sprite += (height - 1) * width;
+    }
+
+    let spriteRow = sprite + x0 * flip_x + y0 * flip_y * width;
+    let screenRow = x + x0 + (y + y0) * 320;
+
+    loop yloop {
+        let lx = 0;
+        loop xloop {
+            let lazy col = (screenRow + lx)?120;
+            if col != trans {
+                (spriteRow + lx * flip_x)?0 = col;
+            }
+            branch_if (lx +:= 1) < numCols: xloop;
+        }
+        spriteRow += width * flip_y;
+        screenRow += 320;
+        branch_if numRows -:= 1: yloop;
+    }
+}
+
 //////////
 // TEXT //
 //////////

site/content/docs.md

@@ -5,7 +5,7 @@ description = "Docs"
 
 # Overview
 
-MicroW8 loads WebAssembly modules with a maximum size of 256kb. Your module needs to export
+MicroW8 loads WebAssembly modules with a maximum size of 256kb. You module needs to export
 a function `fn upd()` which will be called once per frame.
 After calling `upd` MicroW8 will display the 320x240 8bpp framebuffer located
 at offset 120 in memory with the 32bpp palette located at 0x13000.
@@ -146,13 +146,13 @@ Fills the circle at `cx, cy` and with `radius` with the given color index.
 
 (Sets all pixels where the pixel center lies inside the circle.)
 
-### fn rectangle_outline(x: f32, y: f32, w: f32, h: f32, color: i32)
+### fn rectangleOutline(x: f32, y: f32, w: f32, h: f32, color: i32)
 
 Draws a one pixel outline on the inside of the given rectangle.
 
 (Draws the outermost pixels that are still inside the rectangle area.)
 
-### fn circle_outline(cx: f32, cy: f32, radius: f32, color: i32)
+### fn circleOutline(cx: f32, cy: f32, radius: f32, color: i32)
 
 Draws a one pixel outline on the inside of the given circle.
 
@@ -162,6 +162,21 @@ Draws a one pixel outline on the inside of the given circle.
 
 Draws a line from `x1,y1` to `x2,y2` in the given color index.
 
+### fn blitSprite(spriteData: i32, size: i32, x: i32, y: i32, control: i32)
+
+Copies the pixel data at `spriteData` onto the screen at `x`, `y`. The size of the sprite is passed as `width | (height << 16)`.
+If the height is given as 0, the sprite is is treated as square (width x width).
+
+The control parameter controls masking and flipping of the sprite:
+* bits 0-7: color mask index
+* bit 8: switch on masked blit (pixel with color mask index are treated as transparent)
+* bit 9: flip sprite x
+* bit 10: flip sprite y
+
+### fn grabSprite(spriteData: i32, size: i32, x: i32, y: i32, control: i32)
+
+Copies the pixel data on the screen at `x`, `y` to `spriteData`. Parameters are exactly the same as `blitSprite`.
+
 ## Input
 
 MicroW8 provides input from a gamepad with one D-Pad and 4 buttons, or a keyboard emulation thereof.

src/filewatcher.rs

@@ -16,14 +16,16 @@ pub struct FileWatcher {
 impl FileWatcher {
     pub fn new() -> Result<FileWatcher> {
         let (tx, rx) = mpsc::channel();
-        let debouncer = new_debouncer(Duration::from_millis(100), move |res| match res {
+        let debouncer = new_debouncer(Duration::from_millis(100), None, move |res| match res {
             Ok(events) => {
                 for event in events {
                     let _ = tx.send(event);
                 }
             }
-            Err(err) => {
-                eprintln!("Error watching for file changes: {err}");
+            Err(errs) => {
+                for err in errs {
+                    eprintln!("Error watching for file changes: {err}");
+                }
             }
         })?;
         Ok(FileWatcher {

src/run_native.rs

@@ -7,7 +7,7 @@ use cpal::traits::*;
 use rubato::Resampler;
 use uw8_window::{Window, WindowConfig};
 use wasmtime::{
-    Engine, Func, GlobalType, Memory, MemoryType, Module, Mutability, Store, TypedFunc, ValType,
+    Engine, GlobalType, Memory, MemoryType, Module, Mutability, Store, TypedFunc, ValType,
 };
 
 pub struct MicroW8 {
@@ -90,7 +90,7 @@ impl super::Runtime for MicroW8 {
         let memory = wasmtime::Memory::new(&mut store, MemoryType::new(4, Some(4)))?;
 
         let mut linker = wasmtime::Linker::new(&self.engine);
-        linker.define(&store, "env", "memory", memory)?;
+        linker.define("env", "memory", memory)?;
 
         let loader_instance = linker.instantiate(&mut store, &self.loader_module)?;
         let load_uw8 = loader_instance.get_typed_func::<i32, i32>(&mut store, "load_uw8")?;
@@ -181,10 +181,12 @@ impl super::Runtime for MicroW8 {
         if let Some(mut instance) = self.instance.take() {
             let time = (now - instance.start_time).as_millis() as i32;
             let next_frame = {
-                let offset = ((time as u32 as i64 * 6) % 100 - 50) / 6;
-                let max = now + Duration::from_millis(17);
-                let next_center = now + Duration::from_millis((16 - offset) as u64);
-                next_center.min(max)
+                let frame = (time as u32 as u64 * 6 / 100) as u32;
+                let cur_offset = (time as u32).wrapping_sub((frame as u64 * 100 / 6) as u32);
+                let next_time =
+                    ((frame as u64 + 1) * 100 / 6 + cur_offset.max(1).min(4) as u64) as u32;
+                let offset = next_time.wrapping_sub(time as u32);
+                now + Duration::from_millis(offset as u64)
             };
 
             {
@@ -255,12 +257,15 @@ fn add_native_functions(
         }
     })?;
     for i in 0..16 {
-        let global = wasmtime::Global::new(
-            &mut *store,
-            GlobalType::new(ValType::I32, Mutability::Const),
-            0.into(),
+        linker.define(
+            "env",
+            &format!("g_reserved{}", i),
+            wasmtime::Global::new(
+                &mut *store,
+                GlobalType::new(ValType::I32, Mutability::Const),
+                0.into(),
+            )?,
         )?;
-        linker.define(&store, "env", &format!("g_reserved{}", i), global)?;
     }
 
     Ok(())
@@ -273,18 +278,14 @@ fn instantiate_platform(
 ) -> Result<wasmtime::Instance> {
     let platform_instance = linker.instantiate(&mut *store, &platform_module)?;
 
-    let exports: Vec<(String, Func)> = platform_instance
-        .exports(&mut *store)
-        .map(|e| {
-            (
-                e.name().to_owned(),
-                e.into_func()
-                    .expect("platform surely only exports functions"),
-            )
-        })
-        .collect();
-    for (name, func) in exports {
-        linker.define(&store, "env", &name, func)?;
+    for export in platform_instance.exports(&mut *store) {
+        linker.define(
+            "env",
+            export.name(),
+            export
+                .into_func()
+                .expect("platform surely only exports functions"),
+        )?;
     }
 
     Ok(platform_instance)
@@ -311,7 +312,7 @@ fn init_sound(
     let memory = wasmtime::Memory::new(&mut store, MemoryType::new(4, Some(4)))?;
 
     let mut linker = wasmtime::Linker::new(engine);
-    linker.define(&store, "env", "memory", memory)?;
+    linker.define("env", "memory", memory)?;
     add_native_functions(&mut linker, &mut store)?;
 
     let platform_instance = instantiate_platform(&mut linker, &mut store, platform_module)?;
@@ -328,26 +329,23 @@ fn init_sound(
     let mut configs: Vec<_> = device
         .supported_output_configs()?
         .filter(|config| {
-            config.channels() == 2
-                && (config.sample_format() == cpal::SampleFormat::F32
-                    || config.sample_format() == cpal::SampleFormat::I16)
+            config.channels() == 2 && config.sample_format() == cpal::SampleFormat::F32
         })
         .collect();
     configs.sort_by_key(|config| {
         let rate = 44100
             .max(config.min_sample_rate().0)
             .min(config.max_sample_rate().0);
-        let prio = if rate >= 44100 {
+        if rate >= 44100 {
             rate - 44100
         } else {
             (44100 - rate) * 1000
-        };
-        prio + (config.sample_format() == cpal::SampleFormat::I16) as u32
+        }
     });
     let config = configs
         .into_iter()
         .next()
-        .ok_or_else(|| anyhow!("Could not find float or 16bit signed output config"))?;
+        .ok_or_else(|| anyhow!("Could not find float output config"))?;
     let sample_rate = cpal::SampleRate(44100)
         .max(config.min_sample_rate())
         .min(config.max_sample_rate());
@@ -358,7 +356,6 @@ fn init_sound(
             cpal::BufferSize::Fixed(256.max(min).min(max))
         }
     };
-    let sample_format = config.sample_format();
     let config = cpal::StreamConfig {
         buffer_size,
         ..config.config()
@@ -378,8 +375,8 @@ fn init_sound(
         None
     } else {
         let rs = rubato::FftFixedIn::new(44100, sample_rate, 128, 1, 2)?;
-        let input_buffers = rs.input_buffer_allocate(true);
-        let output_buffers = rs.output_buffer_allocate(true);
+        let input_buffers = rs.input_buffer_allocate();
+        let output_buffers = rs.output_buffer_allocate();
         Some(Resampler {
             resampler: rs,
             input_buffers,
@@ -391,130 +388,96 @@ fn init_sound(
     let mut sample_index = 0;
     let mut pending_updates: Vec<RegisterUpdate> = Vec::with_capacity(30);
     let mut current_time = 0;
-
-    let mut callback = move |mut outer_buffer: &mut [f32], _: &_| {
-        let mut first_update = true;
-        while let Ok(update) = rx.try_recv() {
-            if first_update {
-                current_time += update.time.wrapping_sub(current_time) / 8;
-                first_update = false;
-            }
-            pending_updates.push(update);
-        }
-
-        while !outer_buffer.is_empty() {
-            store.set_epoch_deadline(30);
-            while pending_updates
-                .first()
-                .into_iter()
-                .any(|u| u.time.wrapping_sub(current_time) <= 0)
-            {
-                let update = pending_updates.remove(0);
-                memory.write(&mut store, 80, &update.data).unwrap();
+    let stream = device.build_output_stream(
+        &config,
+        move |mut outer_buffer: &mut [f32], _| {
+            let mut first_update = true;
+            while let Ok(update) = rx.try_recv() {
+                if first_update {
+                    current_time += update.time.wrapping_sub(current_time) / 8;
+                    first_update = false;
+                }
+                pending_updates.push(update);
             }
 
-            let duration = if let Some(update) = pending_updates.first() {
-                ((update.time.wrapping_sub(current_time) as usize) * sample_rate + 999) / 1000
-            } else {
-                outer_buffer.len()
-            };
-            let step_size = (duration.max(64) * 2).min(outer_buffer.len());
+            while !outer_buffer.is_empty() {
+                store.set_epoch_deadline(30);
+                while pending_updates
+                    .first()
+                    .into_iter()
+                    .any(|u| u.time.wrapping_sub(current_time) <= 0)
+                {
+                    let update = pending_updates.remove(0);
+                    memory.write(&mut store, 80, &update.data).unwrap();
+                }
 
-            let mut buffer = &mut outer_buffer[..step_size];
-
-            {
-                let mem = memory.data_mut(&mut store);
-                mem[64..68].copy_from_slice(&current_time.to_le_bytes());
-            }
-
-            fn clamp_sample(s: f32) -> f32 {
-                if s.is_nan() {
-                    0.0
+                let duration = if let Some(update) = pending_updates.first() {
+                    ((update.time.wrapping_sub(current_time) as usize) * sample_rate + 999) / 1000
                 } else {
-                    s.max(-1.0).min(1.0)
+                    outer_buffer.len()
+                };
+                let step_size = (duration.max(64) * 2).min(outer_buffer.len());
+
+                let mut buffer = &mut outer_buffer[..step_size];
+
+                {
+                    let mem = memory.data_mut(&mut store);
+                    mem[64..68].copy_from_slice(&current_time.to_le_bytes());
                 }
-            }
 
-            if let Some(ref mut resampler) = resampler {
-                while !buffer.is_empty() {
-                    let copy_size = resampler.output_buffers[0]
-                        .len()
-                        .saturating_sub(resampler.output_index)
-                        .min(buffer.len() / 2);
-                    if copy_size == 0 {
-                        resampler.input_buffers[0].clear();
-                        resampler.input_buffers[1].clear();
-                        for _ in 0..resampler.resampler.input_frames_next() {
-                            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);
-                        }
+                if let Some(ref mut resampler) = resampler {
+                    while !buffer.is_empty() {
+                        let copy_size = resampler.output_buffers[0]
+                            .len()
+                            .saturating_sub(resampler.output_index)
+                            .min(buffer.len() / 2);
+                        if copy_size == 0 {
+                            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));
+                                sample_index = sample_index.wrapping_add(2);
+                            }
 
-                        resampler
-                            .resampler
-                            .process_into_buffer(
-                                &resampler.input_buffers,
-                                &mut resampler.output_buffers,
-                                None,
-                            )
-                            .unwrap();
-                        resampler.output_index = 0;
-                    } else {
-                        for i in 0..copy_size {
-                            buffer[i * 2] = resampler.output_buffers[0][resampler.output_index + i];
-                            buffer[i * 2 + 1] =
-                                resampler.output_buffers[1][resampler.output_index + i];
+                            resampler
+                                .resampler
+                                .process_into_buffer(
+                                    &resampler.input_buffers,
+                                    &mut resampler.output_buffers,
+                                    None,
+                                )
+                                .unwrap();
+                            resampler.output_index = 0;
+                        } else {
+                            for i in 0..copy_size {
+                                buffer[i * 2] =
+                                    resampler.output_buffers[0][resampler.output_index + i];
+                                buffer[i * 2 + 1] =
+                                    resampler.output_buffers[1][resampler.output_index + i];
+                            }
+                            resampler.output_index += copy_size;
+                            buffer = &mut buffer[copy_size * 2..];
                         }
-                        resampler.output_index += copy_size;
-                        buffer = &mut buffer[copy_size * 2..];
+                    }
+                } else {
+                    for v in buffer {
+                        *v = snd.call(&mut store, (sample_index,)).unwrap_or(0.0);
+                        sample_index = sample_index.wrapping_add(1);
                     }
                 }
-            } else {
-                for v in buffer {
-                    *v = clamp_sample(snd.call(&mut store, (sample_index,)).unwrap_or(0.0));
-                    sample_index = sample_index.wrapping_add(1);
-                }
+
+                outer_buffer = &mut outer_buffer[step_size..];
+                current_time =
+                    current_time.wrapping_add((step_size * 500 / sample_rate).max(1) as i32);
             }
-
-            outer_buffer = &mut outer_buffer[step_size..];
-            current_time = current_time.wrapping_add((step_size * 500 / sample_rate).max(1) as i32);
-        }
-    };
-    let stream = if sample_format == cpal::SampleFormat::F32 {
-        device.build_output_stream(
-            &config,
-            callback,
-            move |err| {
-                dbg!(err);
-            },
-            None,
-        )?
-    } else {
-        device.build_output_stream(
-            &config,
-            move |mut buffer: &mut [i16], info| {
-                let mut float_buffer = [0f32; 256];
-
-                while !buffer.is_empty() {
-                    let step_size = buffer.len().min(float_buffer.len());
-                    let step_buffer = &mut float_buffer[..step_size];
-                    callback(step_buffer, info);
-                    for (dest, src) in buffer.iter_mut().take(step_size).zip(step_buffer.iter()) {
-                        *dest = (src.max(-1.0).min(1.0) * 32767.0) as i16;
-                    }
-                    buffer = &mut buffer[step_size..];
-                }
-            },
-            move |err| {
-                dbg!(err);
-            },
-            None,
-        )?
-    };
+        },
+        move |err| {
+            dbg!(err);
+        },
+    )?;
 
     Ok(Uw8Sound { stream, tx })
 }

todo.txt

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

uw8-tool/src/base_module.rs

@@ -152,14 +152,14 @@ impl BaseModule {
         add_function(
             &mut functions,
             &type_map,
-            "rectangle_outline",
+            "rectangleOutline",
             &[F32, F32, F32, F32, I32],
             None,
         );
         add_function(
             &mut functions,
             &type_map,
-            "circle_outline",
+            "circleOutline",
             &[F32, F32, F32, I32],
             None,
         );
@@ -169,6 +169,21 @@ impl BaseModule {
         add_function(&mut functions, &type_map, "playNote", &[I32, I32], None);
         add_function(&mut functions, &type_map, "sndGes", &[I32], Some(F32));
 
+        add_function(
+            &mut functions,
+            &type_map,
+            "blitSprite",
+            &[I32, I32, I32, I32, I32],
+            None,
+        );
+        add_function(
+            &mut functions,
+            &type_map,
+            "grabSprite",
+            &[I32, I32, I32, I32, I32],
+            None,
+        );
+
         for i in functions.len()..64 {
             add_function(
                 &mut functions,

uw8-tool/src/filter_exports.rs

@@ -1,17 +1,13 @@
-use anyhow::Result;
 use std::path::Path;
+use anyhow::Result;
 
 pub fn filter_exports(in_path: &Path, out_path: &Path) -> Result<()> {
     let mut module = walrus::Module::from_file(in_path)?;
 
-    let exports_to_delete: Vec<_> = module
-        .exports
-        .iter()
-        .filter_map(|export| match export.name.as_str() {
-            "start" | "upd" | "snd" => None,
-            _ => Some(export.id()),
-        })
-        .collect();
+    let exports_to_delete: Vec<_> = module.exports.iter().filter_map(|export| match export.name.as_str() {
+        "upd" => None,
+        _ => Some(export.id())
+    }).collect();
 
     for id in exports_to_delete {
         module.exports.delete(id);
@@ -22,4 +18,4 @@ pub fn filter_exports(in_path: &Path, out_path: &Path) -> Result<()> {
     module.emit_wasm_file(out_path)?;
 
     Ok(())
-}
+}

uw8-tool/src/pack.rs

@@ -143,7 +143,6 @@ fn to_val_type(type_: &wasmparser::ValType) -> Result<ValType> {
         I64 => ValType::I64,
         F32 => ValType::F32,
         F64 => ValType::F64,
-        V128 => ValType::V128,
         _ => bail!("Type {:?} isn't a value type", type_),
     })
 }
@@ -968,244 +967,6 @@ fn remap_function(
             De::I64TruncSatF64U => En::I64TruncSatF64U,
             De::MemoryCopy { src_mem, dst_mem } => En::MemoryCopy { src_mem, dst_mem },
             De::MemoryFill { mem } => En::MemoryFill(mem),
-
-            De::V128Const { value } => En::V128Const(value.i128()),
-            De::V128Load { memarg } => En::V128Load(mem(memarg)),
-            De::V128Store { memarg } => En::V128Store(mem(memarg)),
-            De::V128Load8x8S { memarg } => En::V128Load8x8S(mem(memarg)),
-            De::V128Load8x8U { memarg } => En::V128Load8x8U(mem(memarg)),
-            De::V128Load16x4S { memarg } => En::V128Load16x4S(mem(memarg)),
-            De::V128Load16x4U { memarg } => En::V128Load16x4U(mem(memarg)),
-            De::V128Load32x2S { memarg } => En::V128Load32x2S(mem(memarg)),
-            De::V128Load32x2U { memarg } => En::V128Load32x2U(mem(memarg)),
-            De::V128Load8Splat { memarg } => En::V128Load8Splat(mem(memarg)),
-            De::V128Load16Splat { memarg } => En::V128Load16Splat(mem(memarg)),
-            De::V128Load32Splat { memarg } => En::V128Load32Splat(mem(memarg)),
-            De::V128Load64Splat { memarg } => En::V128Load64Splat(mem(memarg)),
-            De::V128Load32Zero { memarg } => En::V128Load32Zero(mem(memarg)),
-            De::V128Load64Zero { memarg } => En::V128Load64Zero(mem(memarg)),
-
-            De::V128Load8Lane { memarg, lane } => En::V128Load8Lane { memarg: mem(memarg), lane },
-            De::V128Load16Lane { memarg, lane } => En::V128Load16Lane { memarg: mem(memarg), lane },
-            De::V128Load32Lane { memarg, lane } => En::V128Load32Lane { memarg: mem(memarg), lane },
-            De::V128Load64Lane { memarg, lane } => En::V128Load64Lane { memarg: mem(memarg), lane },
-            De::V128Store8Lane { memarg, lane } => En::V128Store8Lane { memarg: mem(memarg), lane },
-            De::V128Store16Lane { memarg, lane } => En::V128Store16Lane { memarg: mem(memarg), lane },
-            De::V128Store32Lane { memarg, lane } => En::V128Store32Lane { memarg: mem(memarg), lane },
-            De::V128Store64Lane { memarg, lane } => En::V128Store64Lane { memarg: mem(memarg), lane },
-
-            De::I8x16ExtractLaneS { lane } => En::I8x16ExtractLaneS(lane),
-            De::I8x16ExtractLaneU { lane } => En::I8x16ExtractLaneU(lane),
-            De::I8x16ReplaceLane { lane } => En::I8x16ReplaceLane(lane),
-            De::I16x8ExtractLaneS { lane } => En::I16x8ExtractLaneS(lane),
-            De::I16x8ExtractLaneU { lane } => En::I16x8ExtractLaneU(lane),
-            De::I16x8ReplaceLane { lane } => En::I16x8ReplaceLane(lane),
-            De::I32x4ExtractLane { lane } => En::I32x4ExtractLane(lane),
-            De::I32x4ReplaceLane { lane } => En::I32x4ReplaceLane(lane),
-            De::I64x2ExtractLane { lane } => En::I64x2ExtractLane(lane),
-            De::I64x2ReplaceLane { lane } => En::I64x2ReplaceLane(lane),
-            De::F32x4ExtractLane { lane } => En::F32x4ExtractLane(lane),
-            De::F32x4ReplaceLane { lane } => En::F32x4ReplaceLane(lane),
-            De::F64x2ExtractLane { lane } => En::F64x2ExtractLane(lane),
-            De::F64x2ReplaceLane { lane } => En::F64x2ReplaceLane(lane),
-
-            De::I8x16Splat => En::I8x16Splat,
-            De::I16x8Splat => En::I16x8Splat,
-            De::I32x4Splat => En::I32x4Splat,
-            De::I64x2Splat => En::I64x2Splat,
-            De::F32x4Splat => En::F32x4Splat,
-            De::F64x2Splat => En::F64x2Splat,
-            De::I8x16Swizzle => En::I8x16Swizzle,
-            De::I8x16Add => En::I8x16Add,
-            De::I16x8Add => En::I16x8Add,
-            De::I32x4Add => En::I32x4Add,
-            De::I64x2Add => En::I64x2Add,
-            De::F32x4Add => En::F32x4Add,
-            De::F64x2Add => En::F64x2Add,
-            De::I8x16Sub => En::I8x16Sub,
-            De::I16x8Sub => En::I16x8Sub,
-            De::I32x4Sub => En::I32x4Sub,
-            De::I64x2Sub => En::I64x2Sub,
-            De::F32x4Sub => En::F32x4Sub,
-            De::F64x2Sub => En::F64x2Sub,
-            De::I16x8Mul => En::I16x8Mul,
-            De::I32x4Mul => En::I32x4Mul,
-            De::I64x2Mul => En::I64x2Mul,
-            De::F32x4Mul => En::F32x4Mul,
-            De::F64x2Mul => En::F64x2Mul,
-            De::I32x4DotI16x8S => En::I32x4DotI16x8S,
-            De::I8x16Neg => En::I8x16Neg,
-            De::I16x8Neg => En::I16x8Neg,
-            De::I32x4Neg => En::I32x4Neg,
-            De::I64x2Neg => En::I64x2Neg,
-            De::F32x4Neg => En::F32x4Neg,
-            De::F64x2Neg => En::F64x2Neg,
-            De::I16x8ExtMulLowI8x16S => En::I16x8ExtMulLowI8x16S,
-            De::I16x8ExtMulHighI8x16S => En::I16x8ExtMulHighI8x16S,
-            De::I16x8ExtMulLowI8x16U => En::I16x8ExtMulLowI8x16U,
-            De::I16x8ExtMulHighI8x16U => En::I16x8ExtMulHighI8x16U,
-            De::I32x4ExtMulLowI16x8S => En::I32x4ExtMulLowI16x8S,
-            De::I32x4ExtMulHighI16x8S => En::I32x4ExtMulHighI16x8S,
-            De::I32x4ExtMulLowI16x8U => En::I32x4ExtMulLowI16x8U,
-            De::I32x4ExtMulHighI16x8U => En::I32x4ExtMulHighI16x8U,
-            De::I64x2ExtMulLowI32x4S => En::I64x2ExtMulLowI32x4S,
-            De::I64x2ExtMulHighI32x4S => En::I64x2ExtMulHighI32x4S,
-            De::I64x2ExtMulLowI32x4U => En::I64x2ExtMulLowI32x4U,
-            De::I64x2ExtMulHighI32x4U => En::I64x2ExtMulHighI32x4U,
-            De::I16x8ExtAddPairwiseI8x16S => En::I16x8ExtAddPairwiseI8x16S,
-            De::I16x8ExtAddPairwiseI8x16U => En::I16x8ExtAddPairwiseI8x16U,
-            De::I32x4ExtAddPairwiseI16x8S => En::I32x4ExtAddPairwiseI16x8S,
-            De::I32x4ExtAddPairwiseI16x8U => En::I32x4ExtAddPairwiseI16x8U,
-            De::I8x16AddSatS => En::I8x16AddSatS,
-            De::I8x16AddSatU => En::I8x16AddSatU,
-            De::I16x8AddSatS => En::I16x8AddSatS,
-            De::I16x8AddSatU => En::I16x8AddSatU,
-            De::I8x16SubSatS => En::I8x16SubSatS,
-            De::I8x16SubSatU => En::I8x16SubSatU,
-            De::I16x8SubSatS => En::I16x8SubSatS,
-            De::I16x8SubSatU => En::I16x8SubSatU,
-            De::I16x8Q15MulrSatS => En::I16x8Q15MulrSatS,
-            De::I8x16MinS => En::I8x16MinS,
-            De::I8x16MinU => En::I8x16MinU,
-            De::I16x8MinS => En::I16x8MinS,
-            De::I16x8MinU => En::I16x8MinU,
-            De::I32x4MinS => En::I32x4MinS,
-            De::I32x4MinU => En::I32x4MinU,
-            De::F32x4Min => En::F32x4Min,
-            De::F64x2Min => En::F64x2Min,
-            De::F32x4PMin => En::F32x4PMin,
-            De::F64x2PMin => En::F64x2PMin,
-            De::I8x16MaxS => En::I8x16MaxS,
-            De::I8x16MaxU => En::I8x16MaxU,
-            De::I16x8MaxS => En::I16x8MaxS,
-            De::I16x8MaxU => En::I16x8MaxU,
-            De::I32x4MaxS => En::I32x4MaxS,
-            De::I32x4MaxU => En::I32x4MaxU,
-            De::F32x4Max => En::F32x4Max,
-            De::F64x2Max => En::F64x2Max,
-            De::F32x4PMax => En::F32x4PMax,
-            De::F64x2PMax => En::F64x2PMax,
-            De::I8x16AvgrU => En::I8x16AvgrU,
-            De::I16x8AvgrU => En::I16x8AvgrU,
-            De::I8x16Abs => En::I8x16Abs,
-            De::I16x8Abs => En::I16x8Abs,
-            De::I32x4Abs => En::I32x4Abs,
-            De::I64x2Abs => En::I64x2Abs,
-            De::F32x4Abs => En::F32x4Abs,
-            De::F64x2Abs => En::F64x2Abs,
-            De::I8x16Shl => En::I8x16Shl,
-            De::I16x8Shl => En::I16x8Shl,
-            De::I32x4Shl => En::I32x4Shl,
-            De::I64x2Shl => En::I64x2Shl,
-            De::I8x16ShrS => En::I8x16ShrS,
-            De::I8x16ShrU => En::I8x16ShrU,
-            De::I16x8ShrS => En::I16x8ShrS,
-            De::I16x8ShrU => En::I16x8ShrU,
-            De::I32x4ShrS => En::I32x4ShrS,
-            De::I32x4ShrU => En::I32x4ShrU,
-            De::I64x2ShrS => En::I64x2ShrS,
-            De::I64x2ShrU => En::I64x2ShrU,
-            De::V128And => En::V128And,
-            De::V128Or => En::V128Or,
-            De::V128Xor => En::V128Xor,
-            De::V128Not => En::V128Not,
-            De::V128AndNot => En::V128AndNot,
-            De::V128Bitselect => En::V128Bitselect,
-            De::I8x16Popcnt => En::I8x16Popcnt,
-            De::V128AnyTrue => En::V128AnyTrue,
-            De::I8x16AllTrue => En::I8x16AllTrue,
-            De::I16x8AllTrue => En::I16x8AllTrue,
-            De::I32x4AllTrue => En::I32x4AllTrue,
-            De::I64x2AllTrue => En::I64x2AllTrue,
-            De::I8x16Bitmask => En::I8x16Bitmask,
-            De::I16x8Bitmask => En::I16x8Bitmask,
-            De::I32x4Bitmask => En::I32x4Bitmask,
-            De::I64x2Bitmask => En::I64x2Bitmask,
-            De::I8x16Eq => En::I8x16Eq,
-            De::I16x8Eq => En::I16x8Eq,
-            De::I32x4Eq => En::I32x4Eq,
-            De::I64x2Eq => En::I64x2Eq,
-            De::F32x4Eq => En::F32x4Eq,
-            De::F64x2Eq => En::F64x2Eq,
-            De::I8x16Ne => En::I8x16Ne,
-            De::I16x8Ne => En::I16x8Ne,
-            De::I32x4Ne => En::I32x4Ne,
-            De::I64x2Ne => En::I64x2Ne,
-            De::F32x4Ne => En::F32x4Ne,
-            De::F64x2Ne => En::F64x2Ne,
-            De::I8x16LtS => En::I8x16LtS,
-            De::I8x16LtU => En::I8x16LtU,
-            De::I16x8LtS => En::I16x8LtS,
-            De::I16x8LtU => En::I16x8LtU,
-            De::I32x4LtS => En::I32x4LtS,
-            De::I32x4LtU => En::I32x4LtU,
-            De::F32x4Lt => En::F32x4Lt,
-            De::F64x2Lt => En::F64x2Lt,
-            De::I8x16LeS => En::I8x16LeS,
-            De::I8x16LeU => En::I8x16LeU,
-            De::I16x8LeS => En::I16x8LeS,
-            De::I16x8LeU => En::I16x8LeU,
-            De::I32x4LeS => En::I32x4LeS,
-            De::I32x4LeU => En::I32x4LeU,
-            De::F32x4Le => En::F32x4Le,
-            De::F64x2Le => En::F64x2Le,
-            De::I8x16GtS => En::I8x16GtS,
-            De::I8x16GtU => En::I8x16GtU,
-            De::I16x8GtS => En::I16x8GtS,
-            De::I16x8GtU => En::I16x8GtU,
-            De::I32x4GtS => En::I32x4GtS,
-            De::I32x4GtU => En::I32x4GtU,
-            De::F32x4Gt => En::F32x4Gt,
-            De::F64x2Gt => En::F64x2Gt,
-            De::I8x16GeS => En::I8x16GeS,
-            De::I8x16GeU => En::I8x16GeU,
-            De::I16x8GeS => En::I16x8GeS,
-            De::I16x8GeU => En::I16x8GeU,
-            De::I32x4GeS => En::I32x4GeS,
-            De::I32x4GeU => En::I32x4GeU,
-            De::F32x4Ge => En::F32x4Ge,
-            De::F64x2Ge => En::F64x2Ge,
-            De::F32x4Div => En::F32x4Div,
-            De::F64x2Div => En::F64x2Div,
-            De::F32x4Sqrt => En::F32x4Sqrt,
-            De::F64x2Sqrt => En::F64x2Sqrt,
-            De::F32x4Ceil => En::F32x4Ceil,
-            De::F64x2Ceil => En::F64x2Ceil,
-            De::F32x4Floor => En::F32x4Floor,
-            De::F64x2Floor => En::F64x2Floor,
-            De::F32x4Trunc => En::F32x4Trunc,
-            De::F64x2Trunc => En::F64x2Trunc,
-            De::F32x4Nearest => En::F32x4Nearest,
-            De::F64x2Nearest => En::F64x2Nearest,
-            De::F32x4ConvertI32x4S => En::F32x4ConvertI32x4S,
-            De::F32x4ConvertI32x4U => En::F32x4ConvertI32x4U,
-            De::F64x2ConvertLowI32x4S => En::F64x2ConvertLowI32x4S,
-            De::F64x2ConvertLowI32x4U => En::F64x2ConvertLowI32x4U,
-            De::I32x4TruncSatF32x4S => En::I32x4TruncSatF32x4S,
-            De::I32x4TruncSatF32x4U => En::I32x4TruncSatF32x4U,
-            De::I32x4TruncSatF64x2SZero => En::I32x4TruncSatF64x2SZero,
-            De::I32x4TruncSatF64x2UZero => En::I32x4TruncSatF64x2UZero,
-            De::F32x4DemoteF64x2Zero => En::F32x4DemoteF64x2Zero,
-            De::F64x2PromoteLowF32x4 => En::F64x2PromoteLowF32x4,
-            De::I8x16NarrowI16x8S => En::I8x16NarrowI16x8S,
-            De::I8x16NarrowI16x8U => En::I8x16NarrowI16x8U,
-            De::I16x8NarrowI32x4S => En::I16x8NarrowI32x4S,
-            De::I16x8NarrowI32x4U => En::I16x8NarrowI32x4U,
-            De::I16x8ExtendLowI8x16S => En::I16x8ExtendLowI8x16S,
-            De::I16x8ExtendHighI8x16S => En::I16x8ExtendHighI8x16S,
-            De::I16x8ExtendLowI8x16U => En::I16x8ExtendLowI8x16U,
-            De::I16x8ExtendHighI8x16U => En::I16x8ExtendHighI8x16U,
-            De::I32x4ExtendLowI16x8S => En::I32x4ExtendLowI16x8S,
-            De::I32x4ExtendHighI16x8S => En::I32x4ExtendHighI16x8S,
-            De::I32x4ExtendLowI16x8U => En::I32x4ExtendLowI16x8U,
-            De::I32x4ExtendHighI16x8U => En::I32x4ExtendHighI16x8U,
-            De::I64x2ExtendLowI32x4S => En::I64x2ExtendLowI32x4S,
-            De::I64x2ExtendHighI32x4S => En::I64x2ExtendHighI32x4S,
-            De::I64x2ExtendLowI32x4U => En::I64x2ExtendLowI32x4U,
-            De::I64x2ExtendHighI32x4U => En::I64x2ExtendHighI32x4U,
-
-            De::I8x16Shuffle { lanes } => En::I8x16Shuffle(lanes),
-
             other => bail!("Unsupported instruction {:?}", other),
         });
     }

uw8-window/Cargo.toml

@@ -6,13 +6,13 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-winit = "0.28.6"
+winit = "0.27.5"
 env_logger = "0.10"
 log = "0.4"
 pico-args = "0.5"
-wgpu = "0.17"
-pollster = "0.3.0"
+wgpu = "0.15"
+pollster = "0.2.5"
 bytemuck = { version = "1.13", features = [ "derive" ] }
 anyhow = "1"
-minifb = { version = "0.25.0", default-features = false, features = ["x11"] }
+minifb = { version = "0.23.0", default-features = false, features = ["x11"] }
 winapi = { version = "0.3.9", features = [ "timeapi" ] }

uw8-window/src/gpu/fast_crt.wgsl

@@ -30,8 +30,8 @@ fn row_factor(offset: f32) -> f32 {
 }
 
 fn col_factor(offset: f32) -> f32 {
-    let o = max(0.0, abs(offset) - 0.4);
-    return 1.0 / (1.0 + o * o * 16.0);
+    let offset = max(0.0, abs(offset) - 0.4);
+    return 1.0 / (1.0 + offset * offset * 16.0);
 }
 
 fn sample_screen(tex_coords: vec2<f32>) -> vec4<f32> {

uw8-window/src/gpu/mod.rs

@@ -1,6 +1,6 @@
 use crate::{Input, WindowConfig, WindowImpl};
 use anyhow::{anyhow, Result};
-use std::time::Instant;
+use std::{num::NonZeroU32, time::Instant};
 
 use winit::{
     dpi::PhysicalSize,
@@ -41,10 +41,7 @@ impl Window {
         async fn create(window_config: WindowConfig) -> Result<Window> {
             let event_loop = EventLoop::new();
             let window = WindowBuilder::new()
-                .with_inner_size(PhysicalSize::new(
-                    (320. * window_config.scale).round() as u32,
-                    (240. * window_config.scale).round() as u32,
-                ))
+                .with_inner_size(PhysicalSize::new(640u32, 480))
                 .with_min_inner_size(PhysicalSize::new(320u32, 240))
                 .with_title("MicroW8")
                 .with_fullscreen(if window_config.fullscreen {
@@ -75,13 +72,7 @@ impl Window {
 
             let surface_config = wgpu::SurfaceConfiguration {
                 present_mode: wgpu::PresentMode::AutoNoVsync,
-                ..surface
-                    .get_default_config(
-                        &adapter,
-                        window.inner_size().width,
-                        window.inner_size().height,
-                    )
-                    .expect("Surface incompatible with adapter")
+                ..surface.get_default_config(&adapter, window.inner_size().width, window.inner_size().height).expect("Surface incompatible with adapter")
             };
 
             let filter: Box<dyn Filter> = create_filter(
@@ -363,7 +354,7 @@ impl PaletteScreenMode {
             format: wgpu::TextureFormat::R8Uint,
             usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
             label: None,
-            view_formats: &[],
+            view_formats: &[]
         });
 
         let palette_texture = device.create_texture(&wgpu::TextureDescriptor {
@@ -378,7 +369,7 @@ impl PaletteScreenMode {
             format: wgpu::TextureFormat::Rgba8UnormSrgb,
             usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
             label: None,
-            view_formats: &[],
+            view_formats: &[]
         });
 
         let screen_texture = device.create_texture(&wgpu::TextureDescriptor {
@@ -393,7 +384,7 @@ impl PaletteScreenMode {
             format: wgpu::TextureFormat::Rgba8UnormSrgb,
             usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::RENDER_ATTACHMENT,
             label: None,
-            view_formats: &[],
+            view_formats: &[]
         });
 
         let framebuffer_texture_view =
@@ -500,7 +491,7 @@ impl PaletteScreenMode {
             &bytemuck::cast_slice(pixels),
             wgpu::ImageDataLayout {
                 offset: 0,
-                bytes_per_row: Some(320),
+                bytes_per_row: NonZeroU32::new(320),
                 rows_per_image: None,
             },
             wgpu::Extent3d {
@@ -522,7 +513,7 @@ impl PaletteScreenMode {
             &bytemuck::cast_slice(palette),
             wgpu::ImageDataLayout {
                 offset: 0,
-                bytes_per_row: Some(256 * 4),
+                bytes_per_row: NonZeroU32::new(256 * 4),
                 rows_per_image: None,
             },
             wgpu::Extent3d {

uw8-window/src/lib.rs

@@ -15,7 +15,7 @@ struct FpsCounter {
 }
 
 impl Window {
-    pub fn new(mut config: WindowConfig) -> Result<Window> {
+    pub fn new(config: WindowConfig) -> Result<Window> {
         let fps_counter = if config.fps_counter {
             Some(FpsCounter {
                 start: Instant::now(),
@@ -24,7 +24,6 @@ impl Window {
         } else {
             None
         };
-        config.scale = config.scale.max(1.).min(20.);
         if config.enable_gpu {
             match gpu::Window::new(config) {
                 Ok(window) => {
@@ -72,7 +71,6 @@ pub struct WindowConfig {
     filter: u32,
     fullscreen: bool,
     fps_counter: bool,
-    scale: f32,
 }
 
 impl Default for WindowConfig {
@@ -82,7 +80,6 @@ impl Default for WindowConfig {
             filter: 5,
             fullscreen: false,
             fps_counter: false,
-            scale: 2.,
         }
     }
 }
@@ -105,10 +102,6 @@ impl WindowConfig {
         }
         self.fullscreen = args.contains("--fullscreen");
         self.fps_counter = args.contains("--fps");
-        self.scale = args
-            .opt_value_from_str("--scale")
-            .unwrap()
-            .unwrap_or(self.scale);
     }
 }
 

web/src/microw8.js

@@ -274,7 +274,7 @@ export default function MicroW8(screen, config = {}) {
     
                 try {
                     let restart = false;
-                    let thisFrame;
+                    let nextFrame = 0;
                     if (!isPaused) {
                         let gamepads = navigator.getGamepads();
                         let gamepad = 0;
@@ -321,13 +321,12 @@ export default function MicroW8(screen, config = {}) {
                         }
                         canvasCtx.putImageData(imageData, 0, 0);
 
-                        let timeOffset = ((time * 6) % 100 - 50) / 6;
-                        thisFrame = startTime + time - timeOffset / 8;
-                    } else {
-                        thisFrame = Date.now();
+                        let thisFrame = Math.floor(time * 6 / 100);
+                        let timeOffset = time - thisFrame * 100 / 6;
+                        nextFrame = Math.ceil(startTime + (thisFrame + 1) * 100 / 6 + Math.min(4, timeOffset));
                     }
                     let now = Date.now();
-                    let nextFrame = Math.max(thisFrame + timePerFrame, now);
+                    nextFrame = Math.max(nextFrame, now);
     
                     if (restart) {
                         runModule(currentData);