update dependencies

Cargo.toml

@@ -11,21 +11,21 @@ native = ["wasmtime", "uw8-window", "cpal", "rubato" ]
 browser = ["warp", "tokio", "tokio-stream", "webbrowser"]
 
 [dependencies]
-wasmtime = { version = "5.0.0", optional = true }
+wasmtime = { version = "12.0.0", optional = true }
 anyhow = "1"
 env_logger = "0.10"
 log = "0.4"
 uw8-window = { path = "uw8-window", optional = true }
-notify-debouncer-mini = { version = "0.2.1", default-features = false }
+notify-debouncer-mini = { version = "0.4.1", 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 = "0.3.3", 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 }
+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 }
 ansi_term = "0.12.1"
-cpal = { version = "0.14.2", optional = true }
-rubato = { version = "0.12.0", optional = true }
+cpal = { version = "0.15.2", optional = true }
+rubato = { version = "0.14.0", optional = true }

examples/curlywas/sprites.cwa

@@ -1,21 +0,0 @@
-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

@@ -30,13 +30,11 @@ 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.rectangleOutline" fn rectangleOutline(f32, f32, f32, f32, i32);
-import "env.circleOutline" fn circleOutline(f32, f32, f32, 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.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

@@ -30,13 +30,11 @@
 (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" "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" "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" "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

@@ -5,7 +5,11 @@ 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;
@@ -14,13 +18,19 @@ 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", "--enable-nontrapping-float-to-int", "-Oz", "-o", "zig-out/cart.wasm", "zig-out/lib/cart-filtered.wasm" });
+        const run_wasm_opt = b.addSystemCommand(&[_][]const u8{
+            "wasm-opt", "-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));
@@ -13,10 +13,8 @@ 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[i] = c;
+        FRAMEBUFFER[@as(usize, i)] = c;
         i += 1;
-        if (i >= 320 * 240) {
-            break;
-        }
+        if(i >= 320*240) { break; }
     }
-}
+}

platform/src/ges.cwa

@@ -62,7 +62,6 @@ 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;
@@ -131,7 +130,7 @@ 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 rectangleOutline(x: f32, y: f32, w: f32, h: f32, col: i32) {
+export fn rectangle_outline(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 circleOutline(cx: f32, cy: f32, radius: f32, col: i32) {
+export fn circle_outline(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);
@@ -352,92 +352,6 @@ 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

@@ -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 rectangleOutline(x: f32, y: f32, w: f32, h: f32, color: i32)
+### fn rectangle_outline(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 circleOutline(cx: f32, cy: f32, radius: f32, color: i32)
+### fn circle_outline(cx: f32, cy: f32, radius: f32, color: i32)
 
 Draws a one pixel outline on the inside of the given circle.
 
@@ -162,21 +162,6 @@ 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

@@ -16,16 +16,14 @@ pub struct FileWatcher {
 impl FileWatcher {
     pub fn new() -> Result<FileWatcher> {
         let (tx, rx) = mpsc::channel();
-        let debouncer = new_debouncer(Duration::from_millis(100), None, move |res| match res {
+        let debouncer = new_debouncer(Duration::from_millis(100), move |res| match res {
             Ok(events) => {
                 for event in events {
                     let _ = tx.send(event);
                 }
             }
-            Err(errs) => {
-                for err in errs {
-                    eprintln!("Error watching for file changes: {err}");
-                }
+            Err(err) => {
+                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, GlobalType, Memory, MemoryType, Module, Mutability, Store, TypedFunc, ValType,
+    Engine, Func, 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("env", "memory", memory)?;
+        linker.define(&store, "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")?;
@@ -181,12 +181,10 @@ 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 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)
+                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)
             };
 
             {
@@ -257,15 +255,12 @@ fn add_native_functions(
         }
     })?;
     for i in 0..16 {
-        linker.define(
-            "env",
-            &format!("g_reserved{}", i),
-            wasmtime::Global::new(
-                &mut *store,
-                GlobalType::new(ValType::I32, Mutability::Const),
-                0.into(),
-            )?,
+        let global = wasmtime::Global::new(
+            &mut *store,
+            GlobalType::new(ValType::I32, Mutability::Const),
+            0.into(),
         )?;
+        linker.define(&store, "env", &format!("g_reserved{}", i), global)?;
     }
 
     Ok(())
@@ -278,14 +273,18 @@ fn instantiate_platform(
 ) -> Result<wasmtime::Instance> {
     let platform_instance = linker.instantiate(&mut *store, &platform_module)?;
 
-    for export in platform_instance.exports(&mut *store) {
-        linker.define(
-            "env",
-            export.name(),
-            export
-                .into_func()
-                .expect("platform surely only exports functions"),
-        )?;
+    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)?;
     }
 
     Ok(platform_instance)
@@ -312,7 +311,7 @@ fn init_sound(
     let memory = wasmtime::Memory::new(&mut store, MemoryType::new(4, Some(4)))?;
 
     let mut linker = wasmtime::Linker::new(engine);
-    linker.define("env", "memory", memory)?;
+    linker.define(&store, "env", "memory", memory)?;
     add_native_functions(&mut linker, &mut store)?;
 
     let platform_instance = instantiate_platform(&mut linker, &mut store, platform_module)?;
@@ -375,8 +374,8 @@ fn init_sound(
         None
     } else {
         let rs = rubato::FftFixedIn::new(44100, sample_rate, 128, 1, 2)?;
-        let input_buffers = rs.input_buffer_allocate();
-        let output_buffers = rs.output_buffer_allocate();
+        let input_buffers = rs.input_buffer_allocate(true);
+        let output_buffers = rs.output_buffer_allocate(true);
         Some(Resampler {
             resampler: rs,
             input_buffers,
@@ -425,6 +424,14 @@ 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]
@@ -435,10 +442,12 @@ 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);
                             }
 
@@ -464,7 +473,7 @@ 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);
                     }
                 }
@@ -477,6 +486,7 @@ fn init_sound(
         move |err| {
             dbg!(err);
         },
+        None,
     )?;
 
     Ok(Uw8Sound { stream, tx })

todo.txt

@@ -0,0 +1 @@
+* 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,
-            "rectangleOutline",
+            "rectangle_outline",
             &[F32, F32, F32, F32, I32],
             None,
         );
         add_function(
             &mut functions,
             &type_map,
-            "circleOutline",
+            "circle_outline",
             &[F32, F32, F32, I32],
             None,
         );
@@ -169,21 +169,6 @@ 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-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 = "0.27.5"
+winit = "0.28.6"
 env_logger = "0.10"
 log = "0.4"
 pico-args = "0.5"
-wgpu = "0.15"
-pollster = "0.2.5"
+wgpu = "0.17"
+pollster = "0.3.0"
 bytemuck = { version = "1.13", features = [ "derive" ] }
 anyhow = "1"
-minifb = { version = "0.23.0", default-features = false, features = ["x11"] }
+minifb = { version = "0.25.0", 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 offset = max(0.0, abs(offset) - 0.4);
-    return 1.0 / (1.0 + offset * offset * 16.0);
+    let o = max(0.0, abs(offset) - 0.4);
+    return 1.0 / (1.0 + o * o * 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::{num::NonZeroU32, time::Instant};
+use std::time::Instant;
 
 use winit::{
     dpi::PhysicalSize,
@@ -41,7 +41,10 @@ impl Window {
         async fn create(window_config: WindowConfig) -> Result<Window> {
             let event_loop = EventLoop::new();
             let window = WindowBuilder::new()
-                .with_inner_size(PhysicalSize::new(640u32, 480))
+                .with_inner_size(PhysicalSize::new(
+                    (320. * window_config.scale).round() as u32,
+                    (240. * window_config.scale).round() as u32,
+                ))
                 .with_min_inner_size(PhysicalSize::new(320u32, 240))
                 .with_title("MicroW8")
                 .with_fullscreen(if window_config.fullscreen {
@@ -72,7 +75,13 @@ 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(
@@ -354,7 +363,7 @@ 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 {
@@ -369,7 +378,7 @@ 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 {
@@ -384,7 +393,7 @@ 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 =
@@ -491,7 +500,7 @@ impl PaletteScreenMode {
             &bytemuck::cast_slice(pixels),
             wgpu::ImageDataLayout {
                 offset: 0,
-                bytes_per_row: NonZeroU32::new(320),
+                bytes_per_row: Some(320),
                 rows_per_image: None,
             },
             wgpu::Extent3d {
@@ -513,7 +522,7 @@ impl PaletteScreenMode {
             &bytemuck::cast_slice(palette),
             wgpu::ImageDataLayout {
                 offset: 0,
-                bytes_per_row: NonZeroU32::new(256 * 4),
+                bytes_per_row: Some(256 * 4),
                 rows_per_image: None,
             },
             wgpu::Extent3d {

uw8-window/src/lib.rs

@@ -15,7 +15,7 @@ struct FpsCounter {
 }
 
 impl Window {
-    pub fn new(config: WindowConfig) -> Result<Window> {
+    pub fn new(mut config: WindowConfig) -> Result<Window> {
         let fps_counter = if config.fps_counter {
             Some(FpsCounter {
                 start: Instant::now(),
@@ -24,6 +24,7 @@ impl Window {
         } else {
             None
         };
+        config.scale = config.scale.max(1.).min(20.);
         if config.enable_gpu {
             match gpu::Window::new(config) {
                 Ok(window) => {
@@ -71,6 +72,7 @@ pub struct WindowConfig {
     filter: u32,
     fullscreen: bool,
     fps_counter: bool,
+    scale: f32,
 }
 
 impl Default for WindowConfig {
@@ -80,6 +82,7 @@ impl Default for WindowConfig {
             filter: 5,
             fullscreen: false,
             fps_counter: false,
+            scale: 2.,
         }
     }
 }
@@ -102,6 +105,10 @@ 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 nextFrame = 0;
+                    let thisFrame;
                     if (!isPaused) {
                         let gamepads = navigator.getGamepads();
                         let gamepad = 0;
@@ -321,12 +321,13 @@ export default function MicroW8(screen, config = {}) {
                         }
                         canvasCtx.putImageData(imageData, 0, 0);
 
-                        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 timeOffset = ((time * 6) % 100 - 50) / 6;
+                        thisFrame = startTime + time - timeOffset / 8;
+                    } else {
+                        thisFrame = Date.now();
                     }
                     let now = Date.now();
-                    nextFrame = Math.max(nextFrame, now);
+                    let nextFrame = Math.max(thisFrame + timePerFrame, now);
     
                     if (restart) {
                         runModule(currentData);