prepare for 0.4.1 release

(probably some misuse on my side, need to investigate more)

.github/workflows/ci.yml

@@ -44,7 +44,7 @@ jobs:
     - name: Build
       run: cargo build --release --verbose
     - name: Upload artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: uw8-${{ matrix.build }}
         path: target/release/${{ matrix.exe }}

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "uw8"
-version = "0.3.0"
+version = "0.4.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -11,7 +11,7 @@ native = ["wasmtime", "uw8-window", "cpal", "rubato" ]
 browser = ["warp", "tokio", "tokio-stream", "webbrowser"]
 
 [dependencies]
-wasmtime = { version = "19.0.1", optional = true }
+wasmtime = { git = "https://github.com/bytecodealliance/wasmtime.git", rev = "0f48f939b9870036562ca02ff21253547a9f1a5c", optional = true }
 anyhow = "1"
 env_logger = "0.11.3"
 log = "0.4"
@@ -28,4 +28,4 @@ tokio-stream = { version = "0.1.15", features = ["sync"], optional = true }
 webbrowser = { version = "0.8.13", optional = true }
 ansi_term = "0.12.1"
 cpal = { version = "0.15.3", optional = true }
-rubato = { version = "0.15.0", optional = true }
+rubato = { version = "0.12.0", optional = true }

README.md

@@ -15,9 +15,9 @@ See [here](https://exoticorn.github.io/microw8/) for more information and docs.
 
 ## Downloads
 
-* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-linux.tgz)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-linux.tgz)
-* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-macos.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-macos.tgz)
-* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-windows.zip)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-windows.zip)
 
 The download includes
 

examples/curlywas/tunnel.cwa

@@ -3,12 +3,14 @@ include "../include/microw8-api.cwa"
 export fn upd() {
     let i: i32;
     loop pixels {
-        let inline t = time() * 63 as f32;
+        let inline t = 16!56;
-        let lazy x = (i % 320 - 160) as f32;
+        let inline x = (i % 320 - 160) as f32;
-        let lazy y = (i / 320 - 120) as f32;
+        let inline y = (i #/ 320 - 120) as f32;
-        let inline d = 40000 as f32 / sqrt(x * x + y * y);
+        let inline d = 0xa000 as f32 / sqrt(x * x + y * y);
-        let inline u = atan2(x, y) * (512.0 / 3.141);
+        let inline a = atan2(x, y) * 163_f; // (512 / pi)
-        let inline c = ((i32.trunc_sat_f32_s(d + t * 2 as f32) ^ i32.trunc_sat_f32_s(u + t)) & 255) >> 4;
+        let inline u = i32.trunc_sat_f32_s(a) + t;
+        let inline v = i32.trunc_sat_f32_s(d) + t * 2;
+        let inline c = ((v ^ u) #/ 16) % 16;
         i?FRAMEBUFFER = c;
 
         branch_if (i := i + 1) < 320*240: pixels;

site/content/_index.md

@@ -31,19 +31,19 @@ Examplers for older versions:
 
 ## Versions
 
-### v0.3.0
+### v0.4.1
 
-* [Web runtime](v0.3.0)
+* [Web runtime](../v0.4.1)
-* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-linux.tgz)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-linux.tgz)
-* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-macos.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-macos.tgz)
-* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-windows.zip)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-windows.zip)
 
 Changes:
 
-* add blitSprite and grabSprite API calls
+* Windows: fix bad/inconsistent frame rate
-* add support for integer scaling up to 16x for printing text
+* fix choppy sound on devices with sample rates != 44100 kHz
-* fix incompatibility with sound devices only offering 16bit audio formats
+* add scale mode 'fill' option
-* add support for br_table instruction in packed carts
+
 
 ### Older versions
 

site/content/docs.md

@@ -21,7 +21,7 @@ loaded.
 00000-00040: user memory
 00040-00044: time since module start in ms
 00044-0004c: gamepad state
-0004c-00050: reserved
+0004c-00050: number of frames since module start
 00050-00070: sound data (synced to sound thread)
 00070-00078: reserved
 00078-12c78: frame buffer
@@ -468,6 +468,7 @@ when using the native runtime:
 * `--no-gpu`:  Force old cpu-only window code
 * `--filter FILTER`:  Select an upscale filter at startup
 * `--fullscreen`:  Start in fullscreen mode
+* `--scale-fill`:  Scale to fill whole screen, potentially cropping parts of the frame buffer.
 
 Note that the cpu-only window does not support fullscreen nor upscale filters.
 
@@ -484,7 +485,7 @@ The upscale filter options are:
 5, auto_crt (default)   : ss_crt below 960x720, chromatic_crt otherwise
 ```
 
-You can switch the upscale filter at any time using the keys 1-5. You can toggle fullscreen with F.
+You can switch the upscale filter at any time using the keys 1-5. You can toggle fullscreen with F. You can toggle between scale modes 'fit' and 'fill' with M.
 
 ## `uw8 pack`
 
@@ -594,7 +595,7 @@ a base module provided by MicroW8.
 
 You can generate this base module yourself using
 `uw8-tool`. As a quick summary, it provides all function
-types with up to 5 parameters (i32 or f32) where the
+types with up to 7 parameters (i32 or f32) where the
 `f32` parameters always preceed the `i32` parameters.
 Then it includes all imports that MicroW8 provides,
 a function section with a single function of type

site/content/versions.md

@@ -2,6 +2,33 @@
 description = "Versions"
 +++
 
+### v0.4.1
+
+* [Web runtime](../v0.4.1)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-windows.zip)
+
+Changes:
+
+* Windows: fix bad/inconsistent frame rate
+* fix choppy sound on devices with sample rates != 44100 kHz
+* add scale mode 'fill' option
+
+### v0.4.0
+
+* [Web runtime](../v0.4.0)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.0/microw8-0.4.0-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.0/microw8-0.4.0-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.0/microw8-0.4.0-windows.zip)
+
+Changes:
+
+* add support for sound on mono- and surround-only devices
+* update wasmtime dependency to fix performance regression in 0.3.0
+* add frame counter since module start at location 72
+* add 6 and 7 parameter function types to base module
+
 ### v0.3.0
 
 * [Web runtime](../v0.3.0)

site/templates/index.html

@@ -4,7 +4,7 @@
         <section>
             <h1 class="text-center heading-text">A WebAssembly based fantasy console</h1>
         </section>
-        <a href="v0.3.0">
+        <a href="v0.4.1">
             <img class="demonstration-gif" style="width:640px;height:480px;image-rendering:pixelated" src="img/technotunnel.png"></img>
         </a>
     </div>

src/run_native.rs

@@ -27,6 +27,7 @@ struct UW8Instance {
     end_frame: TypedFunc<(), ()>,
     update: Option<TypedFunc<(), ()>>,
     start_time: Instant,
+    frame_counter: u32,
     watchdog: Arc<Mutex<UW8WatchDog>>,
     sound_tx: Option<mpsc::SyncSender<RegisterUpdate>>,
 }
@@ -159,6 +160,7 @@ impl super::Runtime for MicroW8 {
             end_frame,
             update,
             start_time: Instant::now(),
+            frame_counter: 0,
             watchdog,
             sound_tx,
         });
@@ -191,8 +193,11 @@ impl super::Runtime for MicroW8 {
                 let mem = instance.memory.data_mut(&mut instance.store);
                 mem[64..68].copy_from_slice(&time.to_le_bytes());
                 mem[68..72].copy_from_slice(&input.gamepads);
+                mem[72..76].copy_from_slice(&instance.frame_counter.to_le_bytes());
             }
 
+            instance.frame_counter = instance.frame_counter.wrapping_add(1);
+
             instance.store.set_epoch_deadline(self.timeout as u64);
             if let Some(ref update) = instance.update {
                 if let Err(err) = update.call(&mut instance.store, ()) {
@@ -328,9 +333,8 @@ 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::F32
+                || config.sample_format() == cpal::SampleFormat::I16
-                    || config.sample_format() == cpal::SampleFormat::I16)
         })
         .collect();
 
@@ -391,8 +395,8 @@ 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 input_buffers = rs.input_buffer_allocate();
-        let output_buffers = rs.output_buffer_allocate(true);
+        let output_buffers = rs.output_buffer_allocate();
         Some(Resampler {
             resampler: rs,
             input_buffers,
@@ -532,6 +536,25 @@ fn init_sound(
         }
     }
 
+    fn stereo_to_surround<F>(mut buffer: &mut [f32], num_channels: usize, callback: &mut F)
+    where
+        F: FnMut(&mut [f32]),
+    {
+        let mut in_buffer = [0f32; 256];
+        buffer.fill(0.);
+
+        while !buffer.is_empty() {
+            let step_size = (buffer.len() / num_channels).min(in_buffer.len() / 2);
+            let step_buffer = &mut in_buffer[..step_size * 2];
+            callback(step_buffer);
+            for index in 0..step_size {
+                buffer[index * num_channels + 0] = step_buffer[index * 2 + 0];
+                buffer[index * num_channels + 1] = step_buffer[index * 2 + 1];
+            }
+            buffer = &mut buffer[step_size * num_channels..];
+        }
+    }
+
     let stream = if sample_format == cpal::SampleFormat::F32 {
         if num_channels == 2 {
             device.build_output_stream(
@@ -542,7 +565,7 @@ fn init_sound(
                 },
                 None,
             )?
-        } else {
+        } else if num_channels == 1 {
             device.build_output_stream(
                 &config,
                 move |buffer: &mut [f32], _| stereo_to_mono(buffer, &mut callback),
@@ -551,6 +574,17 @@ fn init_sound(
                 },
                 None,
             )?
+        } else {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [f32], _| {
+                    stereo_to_surround(buffer, num_channels as usize, &mut callback)
+                },
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
         }
     } else {
         if num_channels == 2 {
@@ -562,7 +596,7 @@ fn init_sound(
                 },
                 None,
             )?
-        } else {
+        } else if num_channels == 1 {
             device.build_output_stream(
                 &config,
                 move |buffer: &mut [i16], _| {
@@ -573,6 +607,19 @@ fn init_sound(
                 },
                 None,
             )?
+        } else {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [i16], _| {
+                    f32_to_i16(buffer, &mut |b| {
+                        stereo_to_surround(b, num_channels as usize, &mut callback)
+                    })
+                },
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
         }
     };
 

uw8-tool/src/base_module.rs

@@ -37,7 +37,7 @@ impl BaseModule {
 
         let mut types = vec![];
         let mut type_map = HashMap::new();
-        for num_params in 0..6 {
+        for num_params in 0..8 {
             for num_f32 in 0..=num_params {
                 for &result in &[None, Some(ValType::I32), Some(ValType::F32)] {
                     let mut params = vec![];

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_),
     })
 }
@@ -973,244 +972,6 @@ 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

@@ -6,11 +6,11 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-winit = "0.29.15"
 env_logger = "0.11.3"
+winit = "0.28.6"
 log = "0.4"
 pico-args = "0.5"
-wgpu = "0.19.3"
+wgpu = "0.17"
 pollster = "0.3.0"
 bytemuck = { version = "1.15", features = [ "derive" ] }
 anyhow = "1"

uw8-window/src/gpu/crt.rs

@@ -1,7 +1,7 @@
 use wgpu::util::DeviceExt;
 use winit::dpi::PhysicalSize;
 
-use super::Filter;
+use super::{scale_mode::ScaleMode, Filter};
 
 pub struct CrtFilter {
     uniform_buffer: wgpu::Buffer,
@@ -15,9 +15,10 @@ impl CrtFilter {
         screen: &wgpu::TextureView,
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
+        scale_mode: ScaleMode,
     ) -> CrtFilter {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(resolution),
+            texture_scale: scale_mode.texture_scale_from_resolution(resolution),
         };
 
         let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -112,9 +113,9 @@ impl CrtFilter {
 }
 
 impl Filter for CrtFilter {
-    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(new_size),
+            texture_scale: scale_mode.texture_scale_from_resolution(new_size),
         };
         queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
     }
@@ -126,16 +127,6 @@ impl Filter for CrtFilter {
     }
 }
 
-fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
-    let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
-    [
-        res.width as f32 / scale,
-        res.height as f32 / scale,
-        2.0 / scale,
-        0.0,
-    ]
-}
-
 #[repr(C)]
 #[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
 struct Uniforms {

uw8-window/src/gpu/crt.wgsl

@@ -17,7 +17,7 @@ fn vs_main(
     let i = in_vertex_index / 3u + in_vertex_index % 3u;
     let x = -1.0 + f32(i % 2u) * 322.0;
     let y = -1.0 + f32(i / 2u) * 242.0;
-    out.clip_position = vec4<f32>((vec2<f32>(x, y) - vec2<f32>(160.0, 120.0)) / uniforms.texture_scale.xy, 0.0, 1.0);
+    out.clip_position = vec4<f32>((vec2<f32>(x, y) - vec2<f32>(160.0, 120.0)) * uniforms.texture_scale.xy, 0.0, 1.0);
     out.tex_coords = vec2<f32>(x, y);
     return out;
 }

uw8-window/src/gpu/fast_crt.rs

@@ -1,7 +1,7 @@
 use wgpu::util::DeviceExt;
 use winit::dpi::PhysicalSize;
 
-use super::Filter;
+use super::{scale_mode::ScaleMode, Filter};
 
 pub struct FastCrtFilter {
     uniform_buffer: wgpu::Buffer,
@@ -16,9 +16,10 @@ impl FastCrtFilter {
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
         chromatic: bool,
+        scale_mode: ScaleMode,
     ) -> FastCrtFilter {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(resolution),
+            texture_scale: scale_mode.texture_scale_from_resolution(resolution),
         };
 
         let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -131,9 +132,9 @@ impl FastCrtFilter {
 }
 
 impl Filter for FastCrtFilter {
-    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(new_size),
+            texture_scale: scale_mode.texture_scale_from_resolution(new_size),
         };
         queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
     }
@@ -145,16 +146,6 @@ impl Filter for FastCrtFilter {
     }
 }
 
-fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
-    let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
-    [
-        scale / res.width as f32,
-        scale / res.height as f32,
-        2.0 / scale,
-        0.0,
-    ]
-}
-
 #[repr(C)]
 #[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
 struct Uniforms {

uw8-window/src/gpu/mod.rs

@@ -1,18 +1,20 @@
 use crate::{Input, WindowConfig, WindowImpl};
 use anyhow::{anyhow, Result};
-use std::{sync::Arc, time::Instant};
+use scale_mode::ScaleMode;
+use std::time::Instant;
 
 use winit::{
     dpi::PhysicalSize,
-    event::{Event, WindowEvent},
+    event::{Event, VirtualKeyCode, WindowEvent},
     event_loop::{ControlFlow, EventLoop},
-    keyboard::{Key, KeyCode, NamedKey, PhysicalKey},
-    platform::pump_events::{EventLoopExtPumpEvents, PumpStatus},
     window::{Fullscreen, WindowBuilder},
 };
 
+use winit::platform::run_return::EventLoopExtRunReturn;
+
 mod crt;
 mod fast_crt;
+pub mod scale_mode;
 mod square;
 
 use crt::CrtFilter;
@@ -21,7 +23,7 @@ use square::SquareFilter;
 
 pub struct Window {
     _instance: wgpu::Instance,
-    surface: wgpu::Surface<'static>,
+    surface: wgpu::Surface,
     _adapter: wgpu::Adapter,
     device: wgpu::Device,
     queue: wgpu::Queue,
@@ -29,17 +31,18 @@ pub struct Window {
     surface_config: wgpu::SurfaceConfiguration,
     filter: Box<dyn Filter>,
     event_loop: EventLoop<()>,
-    window: Arc<winit::window::Window>,
+    window: winit::window::Window,
     gamepads: [u8; 4],
     next_frame: Instant,
     is_fullscreen: bool,
     is_open: bool,
+    scale_mode: ScaleMode,
 }
 
 impl Window {
     pub fn new(window_config: WindowConfig) -> Result<Window> {
         async fn create(window_config: WindowConfig) -> Result<Window> {
-            let event_loop = EventLoop::new()?;
+            let event_loop = EventLoop::new();
             let window = WindowBuilder::new()
                 .with_inner_size(PhysicalSize::new(
                     (320. * window_config.scale).round() as u32,
@@ -56,10 +59,8 @@ impl Window {
 
             window.set_cursor_visible(false);
 
-            let window = Arc::new(window);
-
             let instance = wgpu::Instance::new(Default::default());
-            let surface = instance.create_surface(window.clone())?;
+            let surface = unsafe { instance.create_surface(&window) }?;
             let adapter = instance
                 .request_adapter(&wgpu::RequestAdapterOptions {
                     power_preference: wgpu::PowerPreference::LowPower,
@@ -92,6 +93,7 @@ impl Window {
                 window.inner_size(),
                 surface_config.format,
                 window_config.filter,
+                window_config.scale_mode,
             );
 
             surface.configure(&device, &surface_config);
@@ -111,6 +113,7 @@ impl Window {
                 next_frame: Instant::now(),
                 is_fullscreen: window_config.fullscreen,
                 is_open: true,
+                scale_mode: window_config.scale_mode,
             })
         }
 
@@ -121,93 +124,103 @@ impl Window {
 impl WindowImpl for Window {
     fn begin_frame(&mut self) -> Input {
         let mut reset = false;
-        self.event_loop
+        self.event_loop.run_return(|event, _, control_flow| {
-            .set_control_flow(ControlFlow::WaitUntil(self.next_frame));
+            *control_flow = ControlFlow::WaitUntil(self.next_frame);
-        while self.is_open {
+            let mut new_filter = None;
-            let timeout = self.next_frame.saturating_duration_since(Instant::now());
+            match event {
-            let status = self.event_loop.pump_events(Some(timeout), |event, elwt| {
+                Event::WindowEvent { event, .. } => match event {
-                let mut new_filter = None;
+                    WindowEvent::Resized(new_size) => {
-                match event {
+                        self.surface_config.width = new_size.width;
-                    Event::WindowEvent { event, .. } => match event {
+                        self.surface_config.height = new_size.height;
-                        WindowEvent::Resized(new_size) => {
+                        self.surface.configure(&self.device, &self.surface_config);
-                            self.surface_config.width = new_size.width;
+                        self.filter.resize(&self.queue, new_size, self.scale_mode);
-                            self.surface_config.height = new_size.height;
+                    }
-                            self.surface.configure(&self.device, &self.surface_config);
+                    WindowEvent::CloseRequested => {
-                            self.filter.resize(&self.queue, new_size);
+                        self.is_open = false;
-                        }
+                        *control_flow = ControlFlow::Exit;
-                        WindowEvent::CloseRequested => {
+                    }
-                            elwt.exit();
+                    WindowEvent::KeyboardInput { input, .. } => {
-                        }
+                        fn gamepad_button(input: &winit::event::KeyboardInput) -> u8 {
-                        WindowEvent::KeyboardInput { event, .. } => {
+                            match input.scancode {
-                            fn gamepad_button(input: &winit::event::KeyEvent) -> u8 {
+                                44 => 16,
-                                match input.physical_key {
+                                45 => 32,
-                                    PhysicalKey::Code(KeyCode::KeyZ) => 16,
+                                30 => 64,
-                                    PhysicalKey::Code(KeyCode::KeyX) => 32,
+                                31 => 128,
-                                    PhysicalKey::Code(KeyCode::KeyA) => 64,
+                                _ => match input.virtual_keycode {
-                                    PhysicalKey::Code(KeyCode::KeyS) => 128,
+                                    Some(VirtualKeyCode::Up) => 1,
-                                    _ => match input.logical_key {
+                                    Some(VirtualKeyCode::Down) => 2,
-                                        Key::Named(NamedKey::ArrowUp) => 1,
+                                    Some(VirtualKeyCode::Left) => 4,
-                                        Key::Named(NamedKey::ArrowDown) => 2,
+                                    Some(VirtualKeyCode::Right) => 8,
-                                        Key::Named(NamedKey::ArrowLeft) => 4,
+                                    _ => 0,
-                                        Key::Named(NamedKey::ArrowRight) => 8,
+                                },
-                                        _ => 0,
-                                    },
-                                }
                             }
-                            if event.state == winit::event::ElementState::Pressed {
+                        }
-                                match event.logical_key {
+                        if input.state == winit::event::ElementState::Pressed {
-                                    Key::Named(NamedKey::Escape) => {
+                            match input.virtual_keycode {
-                                        elwt.exit();
+                                Some(VirtualKeyCode::Escape) => {
-                                    }
+                                    self.is_open = false;
-                                    Key::Character(ref c) => match c.as_str() {
+                                    *control_flow = ControlFlow::Exit;
-                                        "f" => {
-                                            let fullscreen = if self.window.fullscreen().is_some() {
-                                                None
-                                            } else {
-                                                Some(Fullscreen::Borderless(None))
-                                            };
-                                            self.is_fullscreen = fullscreen.is_some();
-                                            self.window.set_fullscreen(fullscreen);
-                                        }
-                                        "r" => reset = true,
-                                        "1" => new_filter = Some(1),
-                                        "2" => new_filter = Some(2),
-                                        "3" => new_filter = Some(3),
-                                        "4" => new_filter = Some(4),
-                                        "5" => new_filter = Some(5),
-                                        _ => (),
-                                    },
-                                    _ => (),
                                 }
+                                Some(VirtualKeyCode::F) => {
+                                    let fullscreen = if self.window.fullscreen().is_some() {
+                                        None
+                                    } else {
+                                        Some(Fullscreen::Borderless(None))
+                                    };
+                                    self.is_fullscreen = fullscreen.is_some();
+                                    self.window.set_fullscreen(fullscreen);
+                                }
+                                Some(VirtualKeyCode::M) => {
+                                    self.scale_mode = match self.scale_mode {
+                                        ScaleMode::Fit => ScaleMode::Fill,
+                                        ScaleMode::Fill => ScaleMode::Fit,
+                                    };
+                                    self.filter.resize(
+                                        &self.queue,
+                                        PhysicalSize {
+                                            width: self.surface_config.width,
+                                            height: self.surface_config.height,
+                                        },
+                                        self.scale_mode,
+                                    );
+                                }
+                                Some(VirtualKeyCode::R) => reset = true,
+                                Some(VirtualKeyCode::Key1) => new_filter = Some(1),
+                                Some(VirtualKeyCode::Key2) => new_filter = Some(2),
+                                Some(VirtualKeyCode::Key3) => new_filter = Some(3),
+                                Some(VirtualKeyCode::Key4) => new_filter = Some(4),
+                                Some(VirtualKeyCode::Key5) => new_filter = Some(5),
+                                _ => (),
+                            }
 
-                                self.gamepads[0] |= gamepad_button(&event);
+                            self.gamepads[0] |= gamepad_button(&input);
-                            } else {
+                        } else {
-                                self.gamepads[0] &= !gamepad_button(&event);
+                            self.gamepads[0] &= !gamepad_button(&input);
-                            }
                         }
-                        _ => (),
+                    }
-                    },
                     _ => (),
+                },
+                Event::RedrawEventsCleared => {
+                    if Instant::now() >= self.next_frame
+                        // workaround needed on Wayland until the next winit release
+                        && self.window.fullscreen().is_some() == self.is_fullscreen
+                    {
+                        *control_flow = ControlFlow::Exit
+                    }
                 }
-                if let Some(new_filter) = new_filter {
-                    self.filter = create_filter(
-                        &self.device,
-                        &self.palette_screen_mode.screen_view,
-                        self.window.inner_size(),
-                        self.surface_config.format,
-                        new_filter,
-                    );
-                }
-            });
-            match status {
-                PumpStatus::Exit(_) => self.is_open = false,
                 _ => (),
             }
-
+            if let Some(new_filter) = new_filter {
-            if Instant::now() >= self.next_frame {
+                self.filter = create_filter(
-                break;
+                    &self.device,
+                    &self.palette_screen_mode.screen_view,
+                    self.window.inner_size(),
+                    self.surface_config.format,
+                    new_filter,
+                    self.scale_mode,
+                );
             }
-        }
+        });
         Input {
             gamepads: self.gamepads,
             reset,
@@ -243,12 +256,10 @@ impl WindowImpl for Window {
                             b: 0.0,
                             a: 1.0,
                         }),
-                        store: wgpu::StoreOp::Store,
+                        store: true,
                     },
                 })],
                 depth_stencil_attachment: None,
-                timestamp_writes: None,
-                occlusion_query_set: None,
             });
 
             self.filter.render(&mut render_pass);
@@ -269,6 +280,7 @@ fn create_filter(
     window_size: PhysicalSize<u32>,
     surface_format: wgpu::TextureFormat,
     filter: u32,
+    scale_mode: ScaleMode,
 ) -> Box<dyn Filter> {
     match filter {
         1 => Box::new(SquareFilter::new(
@@ -276,6 +288,7 @@ fn create_filter(
             screen_texture,
             window_size,
             surface_format,
+            scale_mode,
         )),
         2 => Box::new(FastCrtFilter::new(
             device,
@@ -283,12 +296,14 @@ fn create_filter(
             window_size,
             surface_format,
             false,
+            scale_mode,
         )),
         3 => Box::new(CrtFilter::new(
             device,
             screen_texture,
             window_size,
             surface_format,
+            scale_mode,
         )),
         4 => Box::new(FastCrtFilter::new(
             device,
@@ -296,18 +311,20 @@ fn create_filter(
             window_size,
             surface_format,
             true,
+            scale_mode,
         )),
         _ => Box::new(AutoCrtFilter::new(
             device,
             screen_texture,
             window_size,
             surface_format,
+            scale_mode,
         )),
     }
 }
 
 trait Filter {
-    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>);
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode);
     fn render<'a>(&'a self, render_pass: &mut wgpu::RenderPass<'a>);
 }
 
@@ -323,9 +340,11 @@ impl AutoCrtFilter {
         screen: &wgpu::TextureView,
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
+        scale_mode: ScaleMode,
     ) -> AutoCrtFilter {
-        let small = CrtFilter::new(device, screen, resolution, surface_format);
+        let small = CrtFilter::new(device, screen, resolution, surface_format, scale_mode);
-        let large = FastCrtFilter::new(device, screen, resolution, surface_format, true);
+        let large =
+            FastCrtFilter::new(device, screen, resolution, surface_format, true, scale_mode);
         AutoCrtFilter {
             small,
             large,
@@ -335,9 +354,9 @@ impl AutoCrtFilter {
 }
 
 impl Filter for AutoCrtFilter {
-    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
-        self.small.resize(queue, new_size);
+        self.small.resize(queue, new_size, scale_mode);
-        self.large.resize(queue, new_size);
+        self.large.resize(queue, new_size, scale_mode);
         self.resolution = new_size;
     }
 
@@ -550,12 +569,10 @@ impl PaletteScreenMode {
                 resolve_target: None,
                 ops: wgpu::Operations {
                     load: wgpu::LoadOp::Load,
-                    store: wgpu::StoreOp::Store,
+                    store: true,
                 },
             })],
             depth_stencil_attachment: None,
-            timestamp_writes: None,
-            occlusion_query_set: None,
         });
 
         render_pass.set_pipeline(&self.pipeline);

uw8-window/src/gpu/scale_mode.rs

@@ -0,0 +1,28 @@
+use winit::dpi::PhysicalSize;
+
+#[derive(Debug, Copy, Clone)]
+pub enum ScaleMode {
+    Fit,
+    Fill,
+}
+
+impl Default for ScaleMode {
+    fn default() -> ScaleMode {
+        ScaleMode::Fit
+    }
+}
+
+impl ScaleMode {
+    pub fn texture_scale_from_resolution(&self, res: PhysicalSize<u32>) -> [f32; 4] {
+        let scale = match self {
+            ScaleMode::Fit => ((res.width as f32) / 160.0).min((res.height as f32) / 120.0),
+            ScaleMode::Fill => ((res.width as f32) / 160.0).max((res.height as f32) / 120.0),
+        };
+        [
+            scale / res.width as f32,
+            scale / res.height as f32,
+            2.0 / scale,
+            0.0,
+        ]
+    }
+}

uw8-window/src/gpu/square.rs

@@ -1,7 +1,7 @@
 use wgpu::util::DeviceExt;
 use winit::dpi::PhysicalSize;
 
-use super::Filter;
+use super::{scale_mode::ScaleMode, Filter};
 
 pub struct SquareFilter {
     uniform_buffer: wgpu::Buffer,
@@ -15,9 +15,10 @@ impl SquareFilter {
         screen: &wgpu::TextureView,
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
+        scale_mode: ScaleMode,
     ) -> SquareFilter {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(resolution),
+            texture_scale: scale_mode.texture_scale_from_resolution(resolution),
         };
 
         let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -126,9 +127,9 @@ impl SquareFilter {
 }
 
 impl Filter for SquareFilter {
-    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(new_size),
+            texture_scale: scale_mode.texture_scale_from_resolution(new_size),
         };
         queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
     }
@@ -140,16 +141,6 @@ impl Filter for SquareFilter {
     }
 }
 
-fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
-    let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
-    [
-        scale / res.width as f32,
-        scale / res.height as f32,
-        2.0 / scale,
-        0.0,
-    ]
-}
-
 #[repr(C)]
 #[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
 struct Uniforms {

uw8-window/src/lib.rs

@@ -1,4 +1,5 @@
 use anyhow::Result;
+use gpu::scale_mode::ScaleMode;
 use std::time::Instant;
 
 mod cpu;
@@ -73,6 +74,7 @@ pub struct WindowConfig {
     fullscreen: bool,
     fps_counter: bool,
     scale: f32,
+    scale_mode: ScaleMode,
 }
 
 impl Default for WindowConfig {
@@ -83,6 +85,7 @@ impl Default for WindowConfig {
             fullscreen: false,
             fps_counter: false,
             scale: 2.,
+            scale_mode: ScaleMode::Fit,
         }
     }
 }
@@ -109,6 +112,9 @@ impl WindowConfig {
             .opt_value_from_str("--scale")
             .unwrap()
             .unwrap_or(self.scale);
+        if args.contains("--scale-fill") {
+            self.scale_mode = ScaleMode::Fill;
+        }
     }
 }
 

web/src/index.html

@@ -10,7 +10,7 @@
     </head>
     <body>
         <div id="uw8">
-            <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.3.0
+            <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.4.1
         </div>
         <div id="centered">
             <canvas class="screen" id="screen" width="320" height="240">

web/src/microw8.js

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