prepare for 0.4.1 release

.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.lock

@@ -3467,7 +3467,7 @@ checksum = "a183cf7feeba97b4dd1c0d46788634f6221d87fa961b305bed08c851829efcc0"
 
 [[package]]
 name = "uw8"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "ansi_term",
  "anyhow",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "uw8"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

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/v0.4.0/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)
+* [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)
 
 The download includes
 

site/content/_index.md

@@ -31,19 +31,19 @@ Examplers for older versions:
 
 ## Versions
 
-### v0.4.0
+### v0.4.1
 
-* [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)
+* [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:
 
-* 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
+* Windows: fix bad/inconsistent frame rate
+* fix choppy sound on devices with sample rates != 44100 kHz
+* add scale mode 'fill' option
+
 
 ### Older versions
 

site/content/docs.md

@@ -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`
 

site/content/versions.md

@@ -2,6 +2,19 @@
 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)

site/static/v0.4.1/index.html

@@ -0,0 +1 @@
+<!doctype html><html><head><meta charset="utf8"><title>MicroW8</title><link href="https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@500&display=swap" rel="stylesheet"><style>html,body,canvas{margin:0;padding:0}html{color:#808070;background-color:#202024;height:100%;font-family:Josefin Sans,Verdana,Arial Black,sans-serif}body{grid-template-rows:1fr 0fr;height:100%;display:grid}#uw8{position:absolute}#uw8 a{font-size:130%}#centered{place-self:center}a{color:#303630}a:hover{color:#405040}.screen{image-rendering:pixelated;background-color:#202428;border:4px solid #303040;width:320px;height:240px;margin-bottom:8px;box-shadow:5px 5px 20px #000}#screen{cursor:none}#start{font-size:150%}#timer:before{content:"";background-color:red;border-radius:6px;width:12px;height:12px;margin-right:3px;display:inline-block}#message{margin-bottom:8px}.error{color:#e04030}button{color:#808070;background-color:#303440;border:1px solid #404040;border-radius:4px;padding:4px;font-family:inherit}button:hover{background-color:#202010}button:active{background-color:#504450}@media (width>=680px) and (height>=620px){.screen{width:640px;height:480px}}@media (width>=1000px) and (height>=800px){.screen{width:960px;height:720px}}@media (width:640px) and (height:480px){.screen{border:0;width:640px;height:480px;margin:0}body{overflow:hidden}}</style></head><body> <div id="uw8"> <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"> </canvas> <button class="screen" id="start" style="display:none">Click to start</button> <div id="timer" hidden></div> <div id="message"></div> <button id="cartButton" style="visibility:hidden">Load cart...</button> </div> <div id="footer"> <a href="http://unlicense.org/" ref="license">Unlicense</a> </div> </body><script type="module">function e(e){return e&&e.__esModule?e.default:e}var t={};t="data:application/wasm;base64,AGFzbQEAAAABFQRgAX8Bf2ACf38Bf2ADf39%2FAGAAAAIPAQNlbnYGbWVtb3J5AgAEAwkIAAABAgEAAAMGEAN%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%2FA0AjAkGAIEgEQCMCQQh0IwEtAAByJAIjAUEBaiQBDAELCyMCQf8BcSICIAAtAICADyIBIwJBCHUiA2xBgAIgAWsgA2wgAWsgAiABSCIEG2okAiAAIAFBByAEQYECbGogAWtBBHVqOgCAgA8gBAsMAEEAQYCEDxAEJAALC60EAQBBAAumBBf%2FyMx3cvbPLfDyK1Bb4IburZYc9i%2BGTsS3j6O4M0o%2Bl2NUQ%2B88SSzybjKLNViVnmhuM%2FZ6LyqKG10doX6mhidmH1yW84EJfcqSXy6pUuF8h7prEGKBJPbIG0yhSUUWuzMrdRxzE4okeNRo4cs%2FsVhtCh4Vai9OQbuu9AZbIpuNDXWOFbj927WcryfPy4dsdT0B%2BA3x1gqXPq2rgI2fI0dNid3EJDTBr3SZWQObkiDldI5YJ17KFwjme3ofejUZT6xP3cNY2XdcosNxULga5hpnvQxV%2F1YKYfeYBVnZ6mAPyIx6Ayl4uxPFNpFdkNv28D%2Bv4X4QS%2BMYgr%2BrLsNAjif5Pz0lVPDBHkx%2BuqJN9SHrb6uRHqvwoVNuRbgn4alMggAWdV0rqmwCXlsmJyzwX%2BrWtH7BoosSlavxs%2BMUTI%2BFXunhVtt5mz3HYy3%2BxBJXF%2FhLWKUPw8vHxoEt%2BBpGDuMK8%2B1ew3pagPiQ7PV7YPWeoHyEKBM92UbyjbJx7HBp7Gh31ZwL9x%2B1sj0ogjs4HLke4hPdXR2o%2F%2BO67SYnX8CPp6YygTuddCxYwU6eHzYFFpwQuzKCVNPXyJKX4HVPJnysHBj5ygPItuS0NZqGlhpzEbgDf%2FJbIQgHzmNotsi6ErQdaigmn0dopO1ybwjbUWZ1kcZmOiBxcoNYSZVtW9mWKfn52kTNDn0QlwZz1slXrqIcx%2BMVVGeIZ9Y5hThIK3lyj%2BL9o%2Fo%3D";var a={};a="data:;base64,AiHfzO34vaTkrd2eAWsXmnk6O0saNxyBOKpKJ4gIZgTFyYLQaErZlwVOzFHSIEwVOdwimalCVY189KvAjT1MA27zTIMgHP7UatKxjcsK5BFbXOHvjhm%2FLesv0gorLh3%2Bp4VSOVvsomIiXDlLL175jQw%2FbY3NPCAhv3e8gH24nzYFr4u3WeQHbVbcFOTxKFGLYMNOsU2QjF2XaPOdZFP32e58qAST0gBwmSKO6tuZq7JVC68uBldt4wWCJEbQqqENSUe5rtcAfyaSRf3gzZ3t3PgnwZHp6%2Fr0cjPo8rqIhvmzkLWI2m4jPwHc8k4s87Gjgpc4YQeipZW9q4PGqym6pnlfUAA8lRaqIo9U%2BnyqAMiI37LAL%2FqtHCi8JG1ByCyw6d9Pf7TLrazkjNNHPa5IJV%2BD8KUJQcCDLquYfrU2baSeirg4QH64Pxevmuo5j9pF97P%2FrfT18mBqcFoba%2Bc1jAeWPRoOSmD9M%2FPIsO1a%2F4bjFd0Uuru95ilanB4yFg4tk9FRqP2zJPk0T4LAzWMXzSX8%2F0VBgOogv%2BniB0XHFmaXv%2BG0PqGrx2sDO2N%2Fi98A3DdQyry%2Fs1%2Bb8mid6w7g5mptwhx561baq1syBSrGSJLqcDAutTh8uXZYvVXbFVzmxfLpAxsR898NHK51FkzqvkxeaNnYbCkC19jhJaslZ1E0vdpidtMzv1uwHCp986mNDT3qK4nWbwOpG52kVtkmac18T9g428D%2BeyJW82GG1hJmGV%2F39FlEB5hxbyFZINNLLAfNwG08itW25ATJ7QxZ%2FAX8zoz%2FT7oLugeHUeMBtvBF%2Bt40Wh2n%2FvjehShTKyMYUvlDZTTzBq34hcaBhCNCHTEHV8bRzoBK3%2Fx0qmeTW2l8vG7KCizhl8VoxALJiY84Isnu1OAS8vKw35FHVUWXDfXLUJw0WooJ%2BdxHnwkxlGBfeNGdWY0zJyRe3CgvsBiGlxC5nABF4pFYBMEOIGR6ev%2F3rrkXL34LdvKr2PkRuMr1gjvb8gGszxhBS40uxdOoWZLRyLA5OZ07W5nHTFbL5l6wKfJrIbrl8ZRamKdD5IXHETRJZq%2BlF3KOS0Jug3R8cjVTtBWYH4QDRXEym7uWNetxnlA5tTOlLine truncated

site/templates/index.html

@@ -4,7 +4,7 @@
         <section>
             <h1 class="text-center heading-text">A WebAssembly based fantasy console</h1>
         </section>
-        <a href="v0.4.0">
+        <a href="v0.4.1">
             <img class="demonstration-gif" style="width:640px;height:480px;image-rendering:pixelated" src="img/technotunnel.png"></img>
         </a>
     </div>

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;
 }
@@ -72,4 +72,4 @@ fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
     acc = acc + sample_pixel(pixel + vec2<i32>(1, 1), offset_x2 + offset_yr);
 
     return vec4<f32>(acc, 1.0);
-}
+}

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

@@ -1,5 +1,6 @@
 use crate::{Input, WindowConfig, WindowImpl};
 use anyhow::{anyhow, Result};
+use scale_mode::ScaleMode;
 use std::time::Instant;
 
 use winit::{
@@ -13,6 +14,7 @@ use winit::platform::run_return::EventLoopExtRunReturn;
 
 mod crt;
 mod fast_crt;
+pub mod scale_mode;
 mod square;
 
 use crt::CrtFilter;
@@ -34,6 +36,7 @@ pub struct Window {
     next_frame: Instant,
     is_fullscreen: bool,
     is_open: bool,
+    scale_mode: ScaleMode,
 }
 
 impl Window {
@@ -90,6 +93,7 @@ impl Window {
                 window.inner_size(),
                 surface_config.format,
                 window_config.filter,
+                window_config.scale_mode,
             );
 
             surface.configure(&device, &surface_config);
@@ -109,6 +113,7 @@ impl Window {
                 next_frame: Instant::now(),
                 is_fullscreen: window_config.fullscreen,
                 is_open: true,
+                scale_mode: window_config.scale_mode,
             })
         }
 
@@ -128,7 +133,7 @@ impl WindowImpl for Window {
                         self.surface_config.width = new_size.width;
                         self.surface_config.height = new_size.height;
                         self.surface.configure(&self.device, &self.surface_config);
-                        self.filter.resize(&self.queue, new_size);
+                        self.filter.resize(&self.queue, new_size, self.scale_mode);
                     }
                     WindowEvent::CloseRequested => {
                         self.is_open = false;
@@ -165,6 +170,20 @@ impl WindowImpl for Window {
                                     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),
@@ -198,6 +217,7 @@ impl WindowImpl for Window {
                     self.window.inner_size(),
                     self.surface_config.format,
                     new_filter,
+                    self.scale_mode,
                 );
             }
         });
@@ -260,6 +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(
@@ -267,6 +288,7 @@ fn create_filter(
             screen_texture,
             window_size,
             surface_format,
+            scale_mode,
         )),
         2 => Box::new(FastCrtFilter::new(
             device,
@@ -274,12 +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,
@@ -287,18 +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>);
 }
 
@@ -314,9 +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 large = FastCrtFilter::new(device, screen, resolution, surface_format, true);
+        let small = CrtFilter::new(device, screen, resolution, surface_format, scale_mode);
+        let large =
+            FastCrtFilter::new(device, screen, resolution, surface_format, true, scale_mode);
         AutoCrtFilter {
             small,
             large,
@@ -326,9 +354,9 @@ impl AutoCrtFilter {
 }
 
 impl Filter for AutoCrtFilter {
-    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
-        self.small.resize(queue, new_size);
-        self.large.resize(queue, new_size);
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
+        self.small.resize(queue, new_size, scale_mode);
+        self.large.resize(queue, new_size, scale_mode);
         self.resolution = new_size;
     }
 

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> 0.4.0
+            <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">