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base: PVB:main
Branches Tags
PVB:main
PVB:build-automation
PVB:multiplayer
PVB:riir
PVB:gui
PVB:v0.1.2
PVB:v0.1.1
..
compare: PVB:multiplayer
Branches Tags
PVB:main
PVB:build-automation
PVB:multiplayer
PVB:riir
PVB:gui
PVB:v0.1.2
PVB:v0.1.1

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23 changed files with 346 additions and 1542 deletions
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1
.gitattributes vendored
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@ -4,7 +4,6 @@
*.html text eol=lf diff=html
*.java text eol=lf diff=java
*.js text eol=lf diff=js
*.sh text eol=lf
*.txt text eol=lf
*.class binary

4
.gitignore vendored
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@ -1,5 +1,5 @@
/lemur
/lemur.exe
/shrooms-vb
/shrooms-vb.exe
.vscode
output
/target

539
Cargo.lock generated
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31
Cargo.toml
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@ -1,52 +1,35 @@
[package]
name = "lemur"
description = "An emulator for the Virtual Boy."
repository = "https://git.virtual-boy.com/PVB/lemur"
publish = false
license = "MIT"
version = "0.1.2"
name = "shrooms-vb"
version = "0.1.0"
edition = "2021"
[dependencies]
anyhow = "1"
bitflags = { version = "2", features = ["serde"] }
bitflags = "2"
bytemuck = { version = "1", features = ["derive"] }
clap = { version = "4", features = ["derive"] }
cpal = { git = "https://github.com/sidit77/cpal.git", rev = "66ed6be" }
directories = "5"
egui = { version = "0.29", features = ["serde"] }
egui_extras = { version = "0.29", features = ["image"] }
egui-toast = "0.15"
egui = "0.29"
egui_extras = "0.29"
egui-winit = "0.29"
egui-wgpu = { version = "0.29", features = ["winit"] }
gilrs = { version = "0.11", features = ["serde-serialize"] }
image = { version = "0.25", default-features = false, features = ["png"] }
gilrs = "0.11"
itertools = "0.13"
num-derive = "0.4"
num-traits = "0.2"
oneshot = "0.1"
pollster = "0.4"
rfd = "0.15"
rtrb = "0.3"
rubato = "0.16"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
thread-priority = "1"
wgpu = "22.1"
winit = { version = "0.30", features = ["serde"] }
winit = "0.30"
[target.'cfg(windows)'.dependencies]
windows = { version = "0.58", features = ["Win32_System_Threading"] }
[build-dependencies]
cc = "1"
winresource = "0.1"
[profile.release]
lto = true
[package.metadata.bundle]
name = "Lemur"
identifier = "com.virtual-boy.Lemur"
icon = ["assets/lemur-256x256.png"]
category = "games"

16
README.md
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@ -1,6 +1,6 @@
# Lemur
# Shrooms VB (native)
A Virtual Boy emulator built around the shrooms-vb core. Written in Rust, using winit, wgpu, and egui. Should run on any major OS.
A native implementation of shrooms-vb. Written in Rust, using winit, wgpu, and Dear ImGui. Should run on any major OS.
## Setup
@ -12,14 +12,4 @@ Run
cargo build --release
```
The executable will be in `target/release/lemur[.exe]`
## Release
Bump the version number in `Cargo.toml`, then run this script:
```sh
./scripts/release.sh
```
It uses docker to cross compile for Windows, MacOS, and Linux. All binaries are left in the `output` directory.
The executable will be in `target/release/shrooms-vb[.exe]`

BIN
assets/lemur-256x256.png
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34
build.Dockerfile
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@ -1,34 +0,0 @@
# This Dockerfile produces a base image for builds.
# It includes all dependencies necessary to cross-compile for Windows/MacOS/Linux.
FROM crazymax/osxcross:latest-ubuntu AS osxcross
FROM rust:latest
RUN rustup target add x86_64-pc-windows-msvc && \
rustup target add x86_64-apple-darwin && \
rustup target add aarch64-apple-darwin && \
apt-get update && \
apt-get install -y clang-19 lld-19 libc6-dev libasound2-dev libudev-dev genisoimage mingw-w64 && \
cargo install cargo-bundle xwin && \
xwin --accept-license splat --output xwin && \
rm -rf .xwin-cache && \
ln -s $(which clang-19) /usr/bin/clang && \
ln -s $(which clang++-19) /usr/bin/clang++
COPY --from=osxcross /osxcross /osxcross
ENV PATH="/osxcross/bin:$PATH" \
LD_LIBRARY_PATH="/osxcross/lib" \
CC="clang-19" CXX="clang++-19" AR="llvm-ar-19" \
CC_x86_64-apple-darwin="o64-clang" \
CXX_x86_64-apple-darwin="o64-clang++" \
CC_aarch64-apple-darwin="oa64-clang" \
CXX_aarch64-apple-darwin="o6a4-clang++" \
CARGO_TARGET_X86_64_PC_WINDOWS_MSVC_LINKER="lld-link-19" \
CARGO_TARGET_X86_64_APPLE_DARWIN_LINKER="o64-clang" \
CARGO_TARGET_X86_64_APPLE_DARWIN_AR="llvm-ar-19" \
CARGO_TARGET_AARCH64_APPLE_DARWIN_LINKER="oa64-clang" \
CARGO_TARGET_AARCH64_APPLE_DARWIN_AR="llvm-ar-19" \
CROSS_COMPILE="setting-this-to-silence-a-warning-" \
RC_PATH="llvm-rc-19" \
RUSTFLAGS="-Lnative=/xwin/crt/lib/x86_64 -Lnative=/xwin/sdk/lib/um/x86_64 -Lnative=/xwin/sdk/lib/ucrt/x86_64" \
MACOSX_DEPLOYMENT_TARGET="14.5"

12
build.rs
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@ -1,12 +1,6 @@
use std::{error::Error, path::Path};
fn main() -> Result<(), Box<dyn Error>> {
if std::env::var("CARGO_CFG_TARGET_OS")? == "windows" {
let mut res = winresource::WindowsResource::new();
res.set_icon("assets/lemur.ico");
res.compile()?;
}
use std::path::Path;
fn main() {
println!("cargo::rerun-if-changed=shrooms-vb-core");
cc::Build::new()
.include(Path::new("shrooms-vb-core/core"))
@ -17,6 +11,4 @@ fn main() -> Result<(), Box<dyn Error>> {
.define("VB_DIV_GENERIC", None)
.file(Path::new("shrooms-vb-core/core/vb.c"))
.compile("vb");
Ok(())
}

35
scripts/do-bundle.sh
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@ -1,35 +0,0 @@
# Set everything up
rm -rf output
mkdir -p output
cargo clean
# Build for linux
cargo build --release
cp target/release/lemur output/lemur-linux
# Bundle for Linux
cargo bundle --release --format deb
cp target/release/bundle/deb/*.deb output
# Build for Windows
cargo build --release --target x86_64-pc-windows-msvc
cp target/x86_64-pc-windows-msvc/release/lemur.exe output
# Build for MacOS Intel
cargo build --release --target x86_64-apple-darwin
cp target/x86_64-apple-darwin/release/lemur output/lemur-osx-intel
# Bundle for MacOS Intel
cargo bundle --release --target x86_64-apple-darwin --format osx
genisoimage -V lemur -D -R -apple -no-pad -o output/Lemur-Intel.dmg target/x86_64-apple-darwin/release/bundle/osx
# Build for MacOS Apple Silicon
cargo build --release --target aarch64-apple-darwin
cp target/aarch64-apple-darwin/release/lemur output/lemur-osx-apple-silicon
# Bundle for MacOS Apple Silicon
cargo bundle --release --target aarch64-apple-darwin --format osx
genisoimage -V lemur -D -R -apple -no-pad -o output/Lemur-Apple-Silicon.dmg target/aarch64-apple-darwin/release/bundle/osx
# Clean up after ourselves
cargo clean

65
scripts/release.sh
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@ -1,65 +0,0 @@
version=$(cat Cargo.toml | sed -n -e '/version/ {s/.* = *//p;q}' | tr -d '"')
read -p "You wanted to release $version, right? [Y/n] " -n 1 -r
echo
case "$REPLY" in
n|N ) exit 1;;
esac
if [ -z "${RELEASE_TOKEN}" ]; then
echo "Please set the RELEASE_TOKEN env var."
exit 1
fi
if ! command -v curl 2>&1 >/dev/null; then
echo "Please install curl."
exit 1
fi
if ! command -v jq 2>&1 >/dev/null; then
echo "Please install jq."
exit 1
fi
docker build -f build.Dockerfile -t lemur-build .
MSYS_NO_PATHCONV=1 docker run -it --rm -v .:/app -w /app --entrypoint bash lemur-build /app/scripts/do-bundle.sh
read -r -d EOF 'body' <<EOF
## How to install
The emulator can be found in the "Downloads" section of this release.
### Windows users
Download \`lemur.exe\`.
### MacOS users
If your Mac uses an Intel processor, download and install \`Lemur-Intel.dmg\`.
If it uses Apple Silicon, download and install \`Lemur-Apple-Silicon.dmg\`.
If you're not sure which to choose, use [this guide](https://support.apple.com/en-us/116943) to find out.
### Linux users
You can either download and run \`lemur-linux\`, or download and install the attached .deb file.
EOF
read -r -d EOF 'payload' <<EOF
{
"body": $(echo "$body" | jq -Rsa .),
"draft": false,
"name": "v${version}",
"prerelease": false,
"tag_name": "v${version}"
}
EOF
echo "Creating release..."
response=$(curl -s --json "$payload" "https://git.virtual-boy.com/api/v1/repos/PVB/lemur/releases?token=$RELEASE_TOKEN")
echo "$response"
upload_url=$(echo "$response" | jq -r '.upload_url')
for file in output/*; do
echo "Uploading $(basename "$file")..."
upload_res=$(curl -s -F "attachment=@$file" "$upload_url?name=$(basename "$file")&token=$RELEASE_TOKEN")
echo "$upload_res"
done

26
src/game.wgsl → src/anaglyph.wgsl
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@ -49,31 +49,7 @@ struct Colors {
var<uniform> colors: Colors;
@fragment
fn fs_lefteye(in: VertexOutput) -> @location(0) vec4<f32> {
let brt = textureSample(u_texture, u_sampler, in.tex_coords);
return colors.left * brt[0];
}
@fragment
fn fs_righteye(in: VertexOutput) -> @location(0) vec4<f32> {
let brt = textureSample(u_texture, u_sampler, in.tex_coords);
return colors.left * brt[1];
}
@fragment
fn fs_anaglyph(in: VertexOutput) -> @location(0) vec4<f32> {
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
let brt = textureSample(u_texture, u_sampler, in.tex_coords);
return colors.left * brt[0] + colors.right * brt[1];
}
@fragment
fn fs_sidebyside(in: VertexOutput) -> @location(0) vec4<f32> {
var point = in.tex_coords;
point.x = (point.x * 2.0) % 1.0;
let brt = textureSample(u_texture, u_sampler, point);
if in.tex_coords.x < 0.5 {
return colors.left * brt[0];
} else {
return colors.left * brt[1];
};
}

85
src/app.rs
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@ -1,9 +1,9 @@
use std::{collections::HashSet, num::NonZero, sync::Arc, thread, time::Duration};
use std::{collections::HashSet, num::NonZero, sync::Arc, thread};
use egui::{
ahash::{HashMap, HashMapExt},
Context, FontData, FontDefinitions, FontFamily, IconData, TextWrapMode, ViewportBuilder,
ViewportCommand, ViewportId, ViewportInfo,
Context, FontData, FontDefinitions, FontFamily, TextWrapMode, ViewportBuilder, ViewportCommand,
ViewportId, ViewportInfo,
};
use gilrs::{EventType, Gilrs};
use winit::{
@ -15,39 +15,23 @@ use winit::{
use crate::{
controller::ControllerManager,
emulator::{EmulatorClient, EmulatorCommand, SimId},
emulator::{EmulatorClient, SimId},
input::MappingProvider,
persistence::Persistence,
window::{AboutWindow, AppWindow, GameWindow, InputWindow},
window::{AppWindow, GameWindow, InputWindow},
};
fn load_icon() -> anyhow::Result<IconData> {
let bytes = include_bytes!("../assets/lemur-256x256.png");
let img = image::load_from_memory_with_format(bytes, image::ImageFormat::Png)?;
let rgba = img.into_rgba8();
Ok(IconData {
width: rgba.width(),
height: rgba.height(),
rgba: rgba.into_vec(),
})
}
pub struct Application {
icon: Option<Arc<IconData>>,
client: EmulatorClient,
proxy: EventLoopProxy<UserEvent>,
mappings: MappingProvider,
controllers: ControllerManager,
persistence: Persistence,
viewports: HashMap<ViewportId, Viewport>,
focused: Option<ViewportId>,
}
impl Application {
pub fn new(client: EmulatorClient, proxy: EventLoopProxy<UserEvent>) -> Self {
let icon = load_icon().ok().map(Arc::new);
let persistence = Persistence::new();
let mappings = MappingProvider::new(persistence.clone());
let mappings = MappingProvider::new();
let controllers = ControllerManager::new(client.clone(), &mappings);
{
let mappings = mappings.clone();
@ -55,12 +39,10 @@ impl Application {
thread::spawn(|| process_gamepad_input(mappings, proxy));
}
Self {
icon,
client,
proxy,
mappings,
controllers,
persistence,
viewports: HashMap::new(),
focused: None,
}
@ -71,22 +53,15 @@ impl Application {
if self.viewports.contains_key(&viewport_id) {
return;
}
self.viewports.insert(
viewport_id,
Viewport::new(event_loop, self.icon.clone(), window),
);
self.viewports
.insert(viewport_id, Viewport::new(event_loop, window));
}
}
impl ApplicationHandler<UserEvent> for Application {
fn resumed(&mut self, event_loop: &ActiveEventLoop) {
let app = GameWindow::new(
self.client.clone(),
self.proxy.clone(),
self.persistence.clone(),
SimId::Player1,
);
let wrapper = Viewport::new(event_loop, self.icon.clone(), Box::new(app));
let app = GameWindow::new(self.client.clone(), self.proxy.clone(), SimId::Player1);
let wrapper = Viewport::new(event_loop, Box::new(app));
self.focused = Some(wrapper.id());
self.viewports.insert(wrapper.id(), wrapper);
}
@ -179,21 +154,12 @@ impl ApplicationHandler<UserEvent> for Application {
};
viewport.app.handle_gamepad_event(&event);
}
UserEvent::OpenAbout => {
let about = AboutWindow;
self.open(event_loop, Box::new(about));
}
UserEvent::OpenInput => {
let input = InputWindow::new(self.mappings.clone());
self.open(event_loop, Box::new(input));
}
UserEvent::OpenPlayer2 => {
let p2 = GameWindow::new(
self.client.clone(),
self.proxy.clone(),
self.persistence.clone(),
SimId::Player2,
);
let p2 = GameWindow::new(self.client.clone(), self.proxy.clone(), SimId::Player2);
self.open(event_loop, Box::new(p2));
}
}
@ -204,15 +170,6 @@ impl ApplicationHandler<UserEvent> for Application {
viewport.window.request_redraw();
}
}
fn exiting(&mut self, _event_loop: &ActiveEventLoop) {
let (sender, receiver) = oneshot::channel();
if self.client.send_command(EmulatorCommand::Exit(sender)) {
if let Err(err) = receiver.recv_timeout(Duration::from_secs(5)) {
eprintln!("could not gracefully exit: {}", err);
}
}
}
}
struct Viewport {
@ -226,16 +183,9 @@ struct Viewport {
app: Box<dyn AppWindow>,
}
impl Viewport {
pub fn new(
event_loop: &ActiveEventLoop,
icon: Option<Arc<IconData>>,
mut app: Box<dyn AppWindow>,
) -> Self {
pub fn new(event_loop: &ActiveEventLoop, mut app: Box<dyn AppWindow>) -> Self {
let mut painter = egui_wgpu::winit::Painter::new(
egui_wgpu::WgpuConfiguration {
present_mode: wgpu::PresentMode::AutoNoVsync,
..egui_wgpu::WgpuConfiguration::default()
},
egui_wgpu::WgpuConfiguration::default(),
1,
None,
false,
@ -243,7 +193,7 @@ impl Viewport {
);
let ctx = Context::default();
let mut fonts = FontDefinitions::default();
let mut fonts = FontDefinitions::empty();
fonts.font_data.insert(
"Selawik".into(),
FontData::from_static(include_bytes!("../assets/selawik.ttf")),
@ -258,13 +208,9 @@ impl Viewport {
s.wrap_mode = Some(TextWrapMode::Extend);
s.visuals.menu_rounding = Default::default();
});
egui_extras::install_image_loaders(&ctx);
let mut info = ViewportInfo::default();
let mut builder = app.initial_viewport();
if let Some(icon) = icon {
builder = builder.with_icon(icon);
}
let builder = app.initial_viewport();
let (window, state) = create_window_and_state(&ctx, event_loop, &builder, &mut painter);
egui_winit::update_viewport_info(&mut info, &ctx, &window, true);
@ -370,7 +316,6 @@ impl Drop for Viewport {
#[derive(Debug)]
pub enum UserEvent {
GamepadEvent(gilrs::Event),
OpenAbout,
OpenInput,
OpenPlayer2,
}

157
src/emulator.rs
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@ -1,7 +1,6 @@
use std::{
collections::HashMap,
fs::{self, File},
io::{Read, Seek, SeekFrom, Write},
fs,
path::{Path, PathBuf},
sync::{
atomic::{AtomicBool, AtomicUsize, Ordering},
@ -11,7 +10,6 @@ use std::{
};
use anyhow::Result;
use egui_toast::{Toast, ToastKind, ToastOptions};
use crate::{audio::Audio, graphics::TextureSink};
pub use shrooms_vb_core::VBKey;
@ -46,43 +44,6 @@ impl SimId {
}
}
struct Cart {
rom_path: PathBuf,
rom: Vec<u8>,
sram_file: File,
sram: Vec<u8>,
}
impl Cart {
fn load(rom_path: &Path, sim_id: SimId) -> Result<Self> {
let rom = fs::read(rom_path)?;
let mut sram_file = File::options()
.read(true)
.write(true)
.create(true)
.truncate(false)
.open(sram_path(rom_path, sim_id))?;
sram_file.set_len(8 * 1024)?;
let mut sram = vec![];
sram_file.read_to_end(&mut sram)?;
Ok(Cart {
rom_path: rom_path.to_path_buf(),
rom,
sram_file,
sram,
})
}
}
fn sram_path(rom_path: &Path, sim_id: SimId) -> PathBuf {
match sim_id {
SimId::Player1 => rom_path.with_extension("p1.sram"),
SimId::Player2 => rom_path.with_extension("p2.sram"),
}
}
impl EmulatorBuilder {
pub fn new() -> (Self, EmulatorClient) {
let (queue, commands) = mpsc::channel();
@ -123,7 +84,7 @@ impl EmulatorBuilder {
self.linked,
)?;
if let Some(path) = self.rom {
emulator.load_cart(SimId::Player1, &path)?;
emulator.load_rom(SimId::Player1, &path)?;
}
Ok(emulator)
}
@ -131,7 +92,6 @@ impl EmulatorBuilder {
pub struct Emulator {
sims: Vec<Sim>,
carts: [Option<Cart>; 2],
audio: Audio,
commands: mpsc::Receiver<EmulatorCommand>,
sim_count: Arc<AtomicUsize>,
@ -140,7 +100,6 @@ pub struct Emulator {
audio_on: Arc<[AtomicBool; 2]>,
linked: Arc<AtomicBool>,
renderers: HashMap<SimId, TextureSink>,
messages: HashMap<SimId, mpsc::Sender<Toast>>,
}
impl Emulator {
@ -154,7 +113,6 @@ impl Emulator {
) -> Result<Self> {
Ok(Self {
sims: vec![],
carts: [None, None],
audio: Audio::init()?,
commands,
sim_count,
@ -163,34 +121,27 @@ impl Emulator {
audio_on,
linked,
renderers: HashMap::new(),
messages: HashMap::new(),
})
}
pub fn load_cart(&mut self, sim_id: SimId, path: &Path) -> Result<()> {
let cart = Cart::load(path, sim_id)?;
self.reset_sim(sim_id, Some(cart))?;
pub fn load_rom(&mut self, sim_id: SimId, path: &Path) -> Result<()> {
let bytes = fs::read(path)?;
self.reset_sim(sim_id, Some(bytes))?;
Ok(())
}
pub fn start_second_sim(&mut self, rom: Option<PathBuf>) -> Result<()> {
let rom_path = if let Some(path) = rom {
Some(path)
let bytes = if let Some(path) = rom {
Some(fs::read(path)?)
} else {
self.carts[0].as_ref().map(|c| c.rom_path.clone())
self.sims.first().and_then(|s| s.clone_rom())
};
let cart = match rom_path {
Some(rom_path) => Some(Cart::load(&rom_path, SimId::Player2)?),
None => None,
};
self.reset_sim(SimId::Player2, cart)?;
self.reset_sim(SimId::Player2, bytes)?;
self.link_sims();
Ok(())
}
fn reset_sim(&mut self, sim_id: SimId, new_cart: Option<Cart>) -> Result<()> {
self.save_sram(sim_id)?;
fn reset_sim(&mut self, sim_id: SimId, new_rom: Option<Vec<u8>>) -> Result<()> {
let index = sim_id.to_index();
while self.sims.len() <= index {
self.sims.push(Sim::new());
@ -198,9 +149,8 @@ impl Emulator {
self.sim_count.store(self.sims.len(), Ordering::Relaxed);
let sim = &mut self.sims[index];
sim.reset();
if let Some(cart) = new_cart {
sim.load_cart(cart.rom.clone(), cart.sram.clone())?;
self.carts[index] = Some(cart);
if let Some(bytes) = new_rom {
sim.load_rom(bytes)?;
self.has_game[index].store(true, Ordering::Release);
}
if self.has_game[index].load(Ordering::Acquire) {
@ -229,31 +179,13 @@ impl Emulator {
self.linked.store(false, Ordering::Release);
}
pub fn pause_sim(&mut self, sim_id: SimId) -> Result<()> {
self.running[sim_id.to_index()].store(false, Ordering::Release);
self.save_sram(sim_id)
}
fn save_sram(&mut self, sim_id: SimId) -> Result<()> {
let sim = self.sims.get_mut(sim_id.to_index());
let cart = self.carts[sim_id.to_index()].as_mut();
if let (Some(sim), Some(cart)) = (sim, cart) {
sim.read_sram(&mut cart.sram);
cart.sram_file.seek(SeekFrom::Start(0))?;
cart.sram_file.write_all(&cart.sram)?;
}
Ok(())
}
pub fn stop_second_sim(&mut self) -> Result<()> {
self.save_sram(SimId::Player2)?;
pub fn stop_second_sim(&mut self) {
self.renderers.remove(&SimId::Player2);
self.sims.truncate(1);
self.sim_count.store(self.sims.len(), Ordering::Relaxed);
self.running[SimId::Player2.to_index()].store(false, Ordering::Release);
self.has_game[SimId::Player2.to_index()].store(false, Ordering::Release);
self.linked.store(false, Ordering::Release);
Ok(())
}
pub fn run(&mut self) {
@ -333,36 +265,25 @@ impl Emulator {
fn handle_command(&mut self, command: EmulatorCommand) {
match command {
EmulatorCommand::ConnectToSim(sim_id, renderer, messages) => {
EmulatorCommand::SetRenderer(sim_id, renderer) => {
self.renderers.insert(sim_id, renderer);
self.messages.insert(sim_id, messages);
}
EmulatorCommand::LoadGame(sim_id, path) => {
if let Err(error) = self.load_cart(sim_id, &path) {
self.report_error(sim_id, format!("Error loading rom: {error}"));
if let Err(error) = self.load_rom(sim_id, &path) {
eprintln!("error loading rom: {}", error);
}
}
EmulatorCommand::StartSecondSim(path) => {
if let Err(error) = self.start_second_sim(path) {
self.report_error(
SimId::Player2,
format!("Error starting second sim: {error}"),
);
eprintln!("error starting second sim: {}", error);
}
}
EmulatorCommand::StopSecondSim => {
if let Err(error) = self.stop_second_sim() {
self.report_error(
SimId::Player2,
format!("Error stopping second sim: {error}"),
);
}
self.stop_second_sim();
}
EmulatorCommand::Pause => {
for sim_id in SimId::values() {
if let Err(error) = self.pause_sim(sim_id) {
self.report_error(sim_id, format!("Error pausing: {error}"));
}
for sim in SimId::values() {
self.running[sim.to_index()].store(false, Ordering::Release);
}
}
EmulatorCommand::Resume => {
@ -385,7 +306,7 @@ impl Emulator {
}
EmulatorCommand::Reset(sim_id) => {
if let Err(error) = self.reset_sim(sim_id, None) {
self.report_error(sim_id, format!("Error resetting sim: {error}"));
eprintln!("error resetting sim: {}", error);
}
}
EmulatorCommand::SetKeys(sim_id, keys) => {
@ -393,38 +314,13 @@ impl Emulator {
sim.set_keys(keys);
}
}
EmulatorCommand::Exit(done) => {
for sim_id in SimId::values() {
if let Err(error) = self.save_sram(sim_id) {
self.report_error(sim_id, format!("Error saving sram on exit: {error}"));
}
}
let _ = done.send(());
}
}
}
fn report_error(&self, sim_id: SimId, message: String) {
let messages = self
.messages
.get(&sim_id)
.or_else(|| self.messages.get(&SimId::Player1));
if let Some(msg) = messages {
let toast = Toast::new()
.kind(ToastKind::Error)
.options(ToastOptions::default().duration_in_seconds(5.0))
.text(&message);
if msg.send(toast).is_ok() {
return;
}
}
eprintln!("{}", message);
}
}
#[derive(Debug)]
pub enum EmulatorCommand {
ConnectToSim(SimId, TextureSink, mpsc::Sender<Toast>),
SetRenderer(SimId, TextureSink),
LoadGame(SimId, PathBuf),
StartSecondSim(Option<PathBuf>),
StopSecondSim,
@ -435,7 +331,6 @@ pub enum EmulatorCommand {
Unlink,
Reset(SimId),
SetKeys(SimId, VBKey),
Exit(oneshot::Sender<()>),
}
#[derive(Clone)]
@ -464,16 +359,12 @@ impl EmulatorClient {
pub fn is_audio_enabled(&self, sim_id: SimId) -> bool {
self.audio_on[sim_id.to_index()].load(Ordering::Acquire)
}
pub fn send_command(&self, command: EmulatorCommand) -> bool {
match self.queue.send(command) {
Ok(()) => true,
Err(err) => {
pub fn send_command(&self, command: EmulatorCommand) {
if let Err(err) = self.queue.send(command) {
eprintln!(
"could not send command {:?} as emulator is shut down",
err.0
);
false
}
}
}
}

66
src/emulator/shrooms_vb_core.rs
View File

@ -3,7 +3,6 @@ use std::{ffi::c_void, ptr, slice};
use anyhow::{anyhow, Result};
use bitflags::bitflags;
use num_derive::{FromPrimitive, ToPrimitive};
use serde::{Deserialize, Serialize};
#[repr(C)]
struct VB {
@ -34,7 +33,7 @@ enum VBOption {
bitflags! {
#[repr(transparent)]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
pub struct VBKey: u16 {
const PWR = 0x0001;
const SGN = 0x0002;
@ -63,8 +62,6 @@ extern "C" {
fn vb_emulate(sim: *mut VB, cycles: *mut u32) -> c_int;
#[link_name = "vbEmulateEx"]
fn vb_emulate_ex(sims: *mut *mut VB, count: c_uint, cycles: *mut u32) -> c_int;
#[link_name = "vbGetCartRAM"]
fn vb_get_cart_ram(sim: *mut VB, size: *mut u32) -> *mut c_void;
#[link_name = "vbGetCartROM"]
fn vb_get_cart_rom(sim: *mut VB, size: *mut u32) -> *mut c_void;
#[link_name = "vbGetPixels"]
@ -90,8 +87,6 @@ extern "C" {
fn vb_init(sim: *mut VB) -> *mut VB;
#[link_name = "vbReset"]
fn vb_reset(sim: *mut VB);
#[link_name = "vbSetCartRAM"]
fn vb_set_cart_ram(sim: *mut VB, sram: *mut c_void, size: u32) -> c_int;
#[link_name = "vbSetCartROM"]
fn vb_set_cart_rom(sim: *mut VB, rom: *mut c_void, size: u32) -> c_int;
#[link_name = "vbSetFrameCallback"]
@ -167,58 +162,41 @@ impl Sim {
unsafe { vb_reset(self.sim) };
}
pub fn load_cart(&mut self, mut rom: Vec<u8>, mut sram: Vec<u8>) -> Result<()> {
self.unload_cart();
rom.shrink_to_fit();
sram.shrink_to_fit();
pub fn load_rom(&mut self, rom: Vec<u8>) -> Result<()> {
self.unload_rom();
let size = rom.len() as u32;
let rom = Box::into_raw(rom.into_boxed_slice()).cast();
let status = unsafe { vb_set_cart_rom(self.sim, rom, size) };
if status != 0 {
if status == 0 {
Ok(())
} else {
let _: Vec<u8> =
unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
return Err(anyhow!("Invalid ROM size of {} bytes", size));
Err(anyhow!("Invalid ROM size of {} bytes", size))
}
}
let size = sram.len() as u32;
let sram = Box::into_raw(sram.into_boxed_slice()).cast();
let status = unsafe { vb_set_cart_ram(self.sim, sram, size) };
if status != 0 {
let _: Vec<u8> =
unsafe { Vec::from_raw_parts(sram.cast(), size as usize, size as usize) };
return Err(anyhow!("Invalid SRAM size of {} bytes", size));
}
Ok(())
}
fn unload_cart(&mut self) {
pub fn clone_rom(&self) -> Option<Vec<u8>> {
let mut size = 0;
let rom = unsafe { vb_get_cart_rom(self.sim, &mut size) };
unsafe { vb_set_cart_rom(self.sim, ptr::null_mut(), 0) };
if !rom.is_null() {
let _: Vec<u8> =
unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
if rom.is_null() {
return None;
}
// SAFETY: rom definitely points to a valid array of `size` bytes
let slice: &[u8] = unsafe { slice::from_raw_parts(rom.cast(), size as usize) };
Some(slice.to_vec())
}
let sram = unsafe { vb_get_cart_ram(self.sim, &mut size) };
unsafe { vb_set_cart_ram(self.sim, ptr::null_mut(), 0) };
if !sram.is_null() {
let _: Vec<u8> =
unsafe { Vec::from_raw_parts(sram.cast(), size as usize, size as usize) };
}
}
pub fn read_sram(&mut self, buffer: &mut [u8]) {
fn unload_rom(&mut self) -> Option<Vec<u8>> {
let mut size = 0;
let sram = unsafe { vb_get_cart_ram(self.sim, &mut size) };
if sram.is_null() {
return;
let rom = unsafe { vb_get_cart_rom(self.sim, &mut size) };
if rom.is_null() {
return None;
}
let bytes = unsafe { slice::from_raw_parts(sram.cast(), size as usize) };
buffer.copy_from_slice(bytes);
unsafe { vb_set_cart_rom(self.sim, ptr::null_mut(), 0) };
let vec = unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
Some(vec)
}
pub fn link(&mut self, peer: &mut Sim) {

136
src/input.rs
View File

@ -1,40 +1,16 @@
use std::{
collections::{hash_map::Entry, HashMap},
fmt::Display,
str::FromStr,
sync::{Arc, RwLock},
};
use anyhow::anyhow;
use gilrs::{ev::Code, Axis, Button, Gamepad, GamepadId};
use serde::{Deserialize, Serialize};
use winit::keyboard::{KeyCode, PhysicalKey};
use crate::{
emulator::{SimId, VBKey},
persistence::Persistence,
};
use crate::emulator::{SimId, VBKey};
#[derive(Clone, PartialEq, Eq, Hash)]
#[derive(Clone, Copy, PartialEq, Eq, Hash)]
struct DeviceId(u16, u16);
impl FromStr for DeviceId {
type Err = anyhow::Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let mut ids = s.split("-");
let vendor_id: u16 = ids.next().ok_or(anyhow!("missing vendor id"))?.parse()?;
let product_id: u16 = ids.next().ok_or(anyhow!("missing product id"))?.parse()?;
Ok(Self(vendor_id, product_id))
}
}
impl Display for DeviceId {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_fmt(format_args!("{}-{}", self.0, self.1))
}
}
#[derive(Clone)]
pub struct GamepadInfo {
pub id: GamepadId,
@ -50,7 +26,6 @@ pub trait Mappings {
fn use_default_mappings(&mut self);
}
#[derive(Serialize, Deserialize)]
pub struct GamepadMapping {
buttons: HashMap<Code, VBKey>,
axes: HashMap<Code, (VBKey, VBKey)>,
@ -114,30 +89,6 @@ impl GamepadMapping {
.or_insert((VBKey::empty(), VBKey::empty()));
entry.1 = entry.1.union(key);
}
fn save_mappings(&self) -> PersistedGamepadMapping {
fn flatten<V: Copy>(values: &HashMap<Code, V>) -> Vec<(Code, V)> {
values.iter().map(|(k, v)| (*k, *v)).collect()
}
PersistedGamepadMapping {
buttons: flatten(&self.buttons),
axes: flatten(&self.axes),
default_buttons: flatten(&self.default_buttons),
default_axes: flatten(&self.default_axes),
}
}
fn from_mappings(mappings: &PersistedGamepadMapping) -> Self {
fn unflatten<V: Copy>(values: &[(Code, V)]) -> HashMap<Code, V> {
values.iter().map(|(k, v)| (*k, *v)).collect()
}
Self {
buttons: unflatten(&mappings.buttons),
axes: unflatten(&mappings.axes),
default_buttons: unflatten(&mappings.default_buttons),
default_axes: unflatten(&mappings.default_axes),
}
}
}
impl Mappings for GamepadMapping {
@ -207,16 +158,6 @@ impl InputMapping {
let entry = self.keys.entry(keyboard_key).or_insert(VBKey::empty());
*entry = entry.union(key);
}
fn save_mappings(&self) -> PersistedKeyboardMapping {
PersistedKeyboardMapping {
keys: self.keys.iter().map(|(k, v)| (*k, *v)).collect(),
}
}
fn restore_mappings(&mut self, persisted: &PersistedKeyboardMapping) {
self.keys = persisted.keys.iter().map(|(k, v)| (*k, *v)).collect();
}
}
impl Mappings for InputMapping {
@ -269,42 +210,25 @@ impl Mappings for InputMapping {
#[derive(Clone)]
pub struct MappingProvider {
persistence: Persistence,
device_mappings: Arc<RwLock<HashMap<DeviceId, Arc<RwLock<GamepadMapping>>>>>,
sim_mappings: HashMap<SimId, Arc<RwLock<InputMapping>>>,
gamepad_info: Arc<RwLock<HashMap<GamepadId, GamepadInfo>>>,
}
impl MappingProvider {
pub fn new(persistence: Persistence) -> Self {
let mut sim_mappings = HashMap::new();
let mut device_mappings = HashMap::new();
pub fn new() -> Self {
let mut mappings = HashMap::new();
let mut p1_mappings = InputMapping::default();
let mut p2_mappings = InputMapping::default();
if let Ok(persisted) = persistence.load_config::<PersistedInputMappings>("mappings") {
p1_mappings.restore_mappings(&persisted.p1_keyboard);
p2_mappings.restore_mappings(&persisted.p2_keyboard);
for (device_id, mappings) in persisted.gamepads {
let Ok(device_id) = device_id.parse::<DeviceId>() else {
continue;
};
let gamepad = GamepadMapping::from_mappings(&mappings);
device_mappings.insert(device_id, Arc::new(RwLock::new(gamepad)));
}
} else {
p1_mappings.use_default_mappings();
}
let p2_mappings = InputMapping::default();
sim_mappings.insert(SimId::Player1, Arc::new(RwLock::new(p1_mappings)));
sim_mappings.insert(SimId::Player2, Arc::new(RwLock::new(p2_mappings)));
mappings.insert(SimId::Player1, Arc::new(RwLock::new(p1_mappings)));
mappings.insert(SimId::Player2, Arc::new(RwLock::new(p2_mappings)));
Self {
persistence,
device_mappings: Arc::new(RwLock::new(device_mappings)),
device_mappings: Arc::new(RwLock::new(HashMap::new())),
gamepad_info: Arc::new(RwLock::new(HashMap::new())),
sim_mappings,
sim_mappings: mappings,
}
}
@ -314,7 +238,7 @@ impl MappingProvider {
pub fn for_gamepad(&self, gamepad_id: GamepadId) -> Option<Arc<RwLock<GamepadMapping>>> {
let lock = self.gamepad_info.read().unwrap();
let device_id = lock.get(&gamepad_id)?.device_id.clone();
let device_id = lock.get(&gamepad_id)?.device_id;
drop(lock);
let lock = self.device_mappings.read().unwrap();
lock.get(&device_id).cloned()
@ -326,7 +250,7 @@ impl MappingProvider {
gamepad.product_id().unwrap_or_default(),
);
let mut lock = self.device_mappings.write().unwrap();
let mappings = match lock.entry(device_id.clone()) {
let mappings = match lock.entry(device_id) {
Entry::Vacant(entry) => {
let mappings = GamepadMapping::for_gamepad(gamepad);
entry.insert(Arc::new(RwLock::new(mappings)))
@ -379,7 +303,7 @@ impl MappingProvider {
return;
};
info.bound_to = Some(sim_id);
let device_id = info.device_id.clone();
let device_id = info.device_id;
drop(lock);
let Some(device_mappings) = self
.device_mappings
@ -417,40 +341,4 @@ impl MappingProvider {
.cloned()
.collect()
}
pub fn save(&self) {
let p1_keyboard = self.for_sim(SimId::Player1).read().unwrap().save_mappings();
let p2_keyboard = self.for_sim(SimId::Player2).read().unwrap().save_mappings();
let mut gamepads = HashMap::new();
for (device_id, gamepad) in self.device_mappings.read().unwrap().iter() {
let mapping = gamepad.read().unwrap().save_mappings();
gamepads.insert(device_id.to_string(), mapping);
}
let persisted = PersistedInputMappings {
p1_keyboard,
p2_keyboard,
gamepads,
};
let _ = self.persistence.save_config("mappings", &persisted);
}
}
#[derive(Serialize, Deserialize)]
struct PersistedInputMappings {
p1_keyboard: PersistedKeyboardMapping,
p2_keyboard: PersistedKeyboardMapping,
gamepads: HashMap<String, PersistedGamepadMapping>,
}
#[derive(Serialize, Deserialize)]
struct PersistedKeyboardMapping {
keys: Vec<(PhysicalKey, VBKey)>,
}
#[derive(Serialize, Deserialize)]
struct PersistedGamepadMapping {
buttons: Vec<(Code, VBKey)>,
axes: Vec<(Code, (VBKey, VBKey))>,
default_buttons: Vec<(Code, VBKey)>,
default_axes: Vec<(Code, (VBKey, VBKey))>,
}

45
src/main.rs
View File

@ -1,7 +1,4 @@
// hide console in release mode
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
use std::{path::PathBuf, process, time::SystemTime};
use std::{path::PathBuf, process};
use anyhow::Result;
use app::Application;
@ -16,7 +13,6 @@ mod controller;
mod emulator;
mod graphics;
mod input;
mod persistence;
mod window;
#[derive(Parser)]
@ -24,43 +20,6 @@ struct Args {
rom: Option<PathBuf>,
}
fn set_panic_handler() {
std::panic::set_hook(Box::new(|info| {
let mut message = String::new();
if let Some(msg) = info.payload().downcast_ref::<&str>() {
message += &format!("{}\n", msg);
} else if let Some(msg) = info.payload().downcast_ref::<String>() {
message += &format!("{}\n", msg);
}
if let Some(location) = info.location() {
message += &format!(
" in file '{}' at line {}\n",
location.file(),
location.line()
);
}
let backtrace = std::backtrace::Backtrace::force_capture();
message += &format!("stack trace:\n{:#}\n", backtrace);
eprint!("{}", message);
let Some(project_dirs) = directories::ProjectDirs::from("com", "virtual-boy", "Lemur")
else {
return;
};
let data_dir = project_dirs.data_dir();
if std::fs::create_dir_all(data_dir).is_err() {
return;
}
let timestamp = SystemTime::now()
.duration_since(SystemTime::UNIX_EPOCH)
.unwrap()
.as_millis();
let logfile_name = format!("crash-{}.txt", timestamp);
let _ = std::fs::write(data_dir.join(logfile_name), message);
}));
}
#[cfg(windows)]
fn set_process_priority_to_high() -> Result<()> {
use windows::Win32::{Foundation, System::Threading};
@ -71,8 +30,6 @@ fn set_process_priority_to_high() -> Result<()> {
}
fn main() -> Result<()> {
set_panic_handler();
#[cfg(windows)]
set_process_priority_to_high()?;

46
src/persistence.rs
View File

@ -1,46 +0,0 @@
use std::{fs, path::PathBuf};
use anyhow::{bail, Result};
use directories::ProjectDirs;
use serde::{Deserialize, Serialize};
#[derive(Clone)]
pub struct Persistence {
dirs: Option<Dirs>,
}
impl Persistence {
pub fn new() -> Self {
Self { dirs: init_dirs() }
}
pub fn save_config<T: Serialize>(&self, file: &str, data: &T) -> Result<()> {
if let Some(dirs) = self.dirs.as_ref() {
let bytes = serde_json::to_vec_pretty(data)?;
let filename = dirs.config_dir.join(file).with_extension("json");
fs::write(&filename, bytes)?;
}
Ok(())
}
pub fn load_config<T: for<'a> Deserialize<'a>>(&self, file: &str) -> Result<T> {
let Some(dirs) = self.dirs.as_ref() else {
bail!("config directory not found");
};
let filename = dirs.config_dir.join(file).with_extension("json");
let bytes = fs::read(filename)?;
Ok(serde_json::from_slice(&bytes)?)
}
}
#[derive(Clone)]
struct Dirs {
config_dir: PathBuf,
}
fn init_dirs() -> Option<Dirs> {
let dirs = ProjectDirs::from("com", "virtual-boy", "Lemur")?;
let config_dir = dirs.config_dir().to_path_buf();
fs::create_dir_all(&config_dir).ok()?;
Some(Dirs { config_dir })
}

2
src/window.rs
View File

@ -1,10 +1,8 @@
pub use about::AboutWindow;
use egui::{Context, ViewportBuilder, ViewportId};
pub use game::GameWindow;
pub use input::InputWindow;
use winit::event::KeyEvent;
mod about;
mod game;
mod game_screen;
mod input;

31
src/window/about.rs
View File

@ -1,31 +0,0 @@
use egui::{CentralPanel, Context, Image, ViewportBuilder, ViewportId};
use super::AppWindow;
pub struct AboutWindow;
impl AppWindow for AboutWindow {
fn viewport_id(&self) -> ViewportId {
ViewportId::from_hash_of("About")
}
fn initial_viewport(&self) -> ViewportBuilder {
ViewportBuilder::default()
.with_title("About Lemur")
.with_inner_size((300.0, 200.0))
}
fn show(&mut self, ctx: &Context) {
CentralPanel::default().show(ctx, |ui| {
ui.vertical_centered(|ui| {
ui.label("Lemur Virtual Boy Emulator");
ui.label(format!("Version {}", env!("CARGO_PKG_VERSION")));
ui.hyperlink("https://git.virtual-boy.com/PVB/lemur");
let logo = Image::new(egui::include_image!("../../assets/lemur-256x256.png"))
.max_width(256.0)
.maintain_aspect_ratio(true);
ui.add(logo);
});
});
}
}

362
src/window/game.rs
View File

@ -1,67 +1,29 @@
use std::sync::mpsc;
use crate::{
app::UserEvent,
emulator::{EmulatorClient, EmulatorCommand, SimId},
persistence::Persistence,
};
use egui::{
ecolor::HexColor, menu, Align2, Button, CentralPanel, Color32, Context, Direction, Frame,
Layout, Response, Sense, TopBottomPanel, Ui, Vec2, ViewportBuilder, ViewportCommand,
ViewportId, WidgetText, Window,
menu, Button, CentralPanel, Color32, Context, Frame, Response, TopBottomPanel, Ui,
ViewportBuilder, ViewportCommand, ViewportId, WidgetText,
};
use egui_toast::{Toast, Toasts};
use serde::{Deserialize, Serialize};
use winit::event_loop::EventLoopProxy;
use super::{
game_screen::{DisplayMode, GameScreen},
AppWindow,
};
const COLOR_PRESETS: [[Color32; 2]; 3] = [
[
Color32::from_rgb(0xff, 0x00, 0x00),
Color32::from_rgb(0x00, 0xc6, 0xf0),
],
[
Color32::from_rgb(0x00, 0xb4, 0x00),
Color32::from_rgb(0xc8, 0x00, 0xff),
],
[
Color32::from_rgb(0xb4, 0x9b, 0x00),
Color32::from_rgb(0x00, 0x00, 0xff),
],
];
use super::{game_screen::GameScreen, AppWindow};
pub struct GameWindow {
client: EmulatorClient,
proxy: EventLoopProxy<UserEvent>,
persistence: Persistence,
sim_id: SimId,
config: GameConfig,
screen: Option<GameScreen>,
messages: Option<mpsc::Receiver<Toast>>,
color_picker: Option<ColorPickerState>,
}
impl GameWindow {
pub fn new(
client: EmulatorClient,
proxy: EventLoopProxy<UserEvent>,
persistence: Persistence,
sim_id: SimId,
) -> Self {
let config = load_config(&persistence, sim_id);
pub fn new(client: EmulatorClient, proxy: EventLoopProxy<UserEvent>, sim_id: SimId) -> Self {
Self {
client,
proxy,
persistence,
sim_id,
config,
screen: None,
messages: None,
color_picker: None,
}
}
@ -98,7 +60,43 @@ impl GameWindow {
ui.close_menu();
}
});
ui.menu_button("Options", |ui| self.show_options_menu(ctx, ui));
ui.menu_button("Video", |ui| {
let current_dims = ctx.input(|i| i.viewport().inner_rect.unwrap());
let current_dims = current_dims.max - current_dims.min;
for scale in 1..=4 {
let label = format!("x{scale}");
let scale = scale as f32;
let dims = (384.0 * scale, 224.0 * scale + 22.0).into();
if ui
.selectable_button((current_dims - dims).length() < 1.0, label)
.clicked()
{
ctx.send_viewport_cmd(ViewportCommand::InnerSize(dims));
ui.close_menu();
}
}
});
ui.menu_button("Audio", |ui| {
let p1_enabled = self.client.is_audio_enabled(SimId::Player1);
let p2_enabled = self.client.is_audio_enabled(SimId::Player2);
if ui.selectable_button(p1_enabled, "Player 1").clicked() {
self.client
.send_command(EmulatorCommand::SetAudioEnabled(!p1_enabled, p2_enabled));
ui.close_menu();
}
if ui.selectable_button(p2_enabled, "Player 2").clicked() {
self.client
.send_command(EmulatorCommand::SetAudioEnabled(p1_enabled, !p2_enabled));
ui.close_menu();
}
});
ui.menu_button("Input", |ui| {
if ui.button("Bind Inputs").clicked() {
self.proxy.send_event(UserEvent::OpenInput).unwrap();
ui.close_menu();
}
});
ui.menu_button("Multiplayer", |ui| {
if self.sim_id == SimId::Player1
&& !self.client.has_player_2()
@ -121,180 +119,6 @@ impl GameWindow {
}
}
});
ui.menu_button("About", |ui| {
self.proxy.send_event(UserEvent::OpenAbout).unwrap();
ui.close_menu();
});
}
fn show_options_menu(&mut self, ctx: &Context, ui: &mut Ui) {
ui.menu_button("Video", |ui| {
ui.menu_button("Screen Size", |ui| {
let current_dims = ctx.input(|i| i.viewport().inner_rect.unwrap());
let current_dims = current_dims.max - current_dims.min;
for scale in 1..=4 {
let label = format!("x{scale}");
let scale = scale as f32;
let dims = {
let Vec2 { x, y } = self.config.display_mode.proportions();
Vec2::new(x * scale, y * scale + 22.0)
};
if ui
.selectable_button((current_dims - dims).length() < 1.0, label)
.clicked()
{
ctx.send_viewport_cmd(ViewportCommand::InnerSize(dims));
ui.close_menu();
}
}
});
ui.menu_button("Display Mode", |ui| {
let old_proportions = self.config.display_mode.proportions();
let mut changed = false;
let mut display_mode = self.config.display_mode;
changed |= ui
.selectable_option(&mut display_mode, DisplayMode::Anaglyph, "Anaglyph")
.clicked();
changed |= ui
.selectable_option(&mut display_mode, DisplayMode::LeftEye, "Left Eye")
.clicked();
changed |= ui
.selectable_option(&mut display_mode, DisplayMode::RightEye, "Right Eye")
.clicked();
changed |= ui
.selectable_option(&mut display_mode, DisplayMode::SideBySide, "Side by Side")
.clicked();
if !changed {
return;
}
let current_dims = {
let viewport = ctx.input(|i| i.viewport().inner_rect.unwrap());
viewport.max - viewport.min
};
let new_proportions = display_mode.proportions();
let scale = new_proportions / old_proportions;
if scale != Vec2::new(1.0, 1.0) {
ctx.send_viewport_cmd(ViewportCommand::InnerSize(current_dims * scale));
}
self.update_config(|c| {
c.display_mode = display_mode;
c.dimensions = current_dims * scale;
});
ui.close_menu();
});
ui.menu_button("Colors", |ui| {
for preset in COLOR_PRESETS {
if ui.color_pair_button(preset[0], preset[1]).clicked() {
self.update_config(|c| c.colors = preset);
ui.close_menu();
}
}
ui.with_layout(ui.layout().with_cross_align(egui::Align::Center), |ui| {
if ui.button("Custom").clicked() {
let color_str = |color: Color32| {
format!("{:02x}{:02x}{:02x}", color.r(), color.g(), color.b())
};
let is_running = self.client.is_running(self.sim_id);
if is_running {
self.client.send_command(EmulatorCommand::Pause);
}
let color_codes = [
color_str(self.config.colors[0]),
color_str(self.config.colors[1]),
];
self.color_picker = Some(ColorPickerState {
color_codes,
just_opened: true,
unpause_on_close: is_running,
});
ui.close_menu();
}
});
});
});
ui.menu_button("Audio", |ui| {
let p1_enabled = self.client.is_audio_enabled(SimId::Player1);
let p2_enabled = self.client.is_audio_enabled(SimId::Player2);
if ui.selectable_button(p1_enabled, "Player 1").clicked() {
self.client
.send_command(EmulatorCommand::SetAudioEnabled(!p1_enabled, p2_enabled));
ui.close_menu();
}
if ui.selectable_button(p2_enabled, "Player 2").clicked() {
self.client
.send_command(EmulatorCommand::SetAudioEnabled(p1_enabled, !p2_enabled));
ui.close_menu();
}
});
ui.menu_button("Input", |ui| {
if ui.button("Bind Inputs").clicked() {
self.proxy.send_event(UserEvent::OpenInput).unwrap();
ui.close_menu();
}
});
}
fn show_color_picker(&mut self, ui: &mut Ui) {
let mut colors = self.config.colors;
let Some(state) = self.color_picker.as_mut() else {
return;
};
let (open, updated) = ui
.horizontal(|ui| {
let left_color = ui.color_picker(&mut colors[0], &mut state.color_codes[0]);
if state.just_opened {
left_color.request_focus();
state.just_opened = false;
}
let right_color = ui.color_picker(&mut colors[1], &mut state.color_codes[1]);
let open = left_color.has_focus() || right_color.has_focus();
let updated = left_color.changed() || right_color.changed();
(open, updated)
})
.inner;
if !open {
if state.unpause_on_close {
self.client.send_command(EmulatorCommand::Resume);
}
self.color_picker = None;
}
if updated {
self.update_config(|c| c.colors = colors);
}
}
fn update_config(&mut self, update: impl FnOnce(&mut GameConfig)) {
let mut new_config = self.config.clone();
update(&mut new_config);
if self.config != new_config {
let _ = self
.persistence
.save_config(config_filename(self.sim_id), &new_config);
}
self.config = new_config;
}
}
fn config_filename(sim_id: SimId) -> &'static str {
match sim_id {
SimId::Player1 => "config_p1",
SimId::Player2 => "config_p2",
}
}
fn load_config(persistence: &Persistence, sim_id: SimId) -> GameConfig {
if let Ok(config) = persistence.load_config(config_filename(sim_id)) {
return config;
}
GameConfig {
display_mode: DisplayMode::Anaglyph,
colors: COLOR_PRESETS[0],
dimensions: DisplayMode::Anaglyph.proportions() + Vec2::new(0.0, 22.0),
}
}
@ -308,25 +132,11 @@ impl AppWindow for GameWindow {
fn initial_viewport(&self) -> ViewportBuilder {
ViewportBuilder::default()
.with_title("Lemur")
.with_inner_size(self.config.dimensions)
.with_title("Shrooms VB")
.with_inner_size((384.0, 246.0))
}
fn show(&mut self, ctx: &Context) {
let dimensions = {
let bounds = ctx.input(|i| i.viewport().inner_rect.unwrap());
bounds.max - bounds.min
};
self.update_config(|c| c.dimensions = dimensions);
let mut toasts = Toasts::new()
.anchor(Align2::LEFT_BOTTOM, (10.0, 10.0))
.direction(Direction::BottomUp);
if let Some(messages) = self.messages.as_mut() {
while let Ok(toast) = messages.try_recv() {
toasts.add(toast);
}
}
TopBottomPanel::top("menubar")
.exact_height(22.0)
.show(ctx, |ui| {
@ -334,35 +144,19 @@ impl AppWindow for GameWindow {
self.show_menu(ctx, ui);
});
});
if self.color_picker.is_some() {
Window::new("Color Picker")
.title_bar(false)
.resizable(false)
.anchor(Align2::CENTER_CENTER, Vec2::ZERO)
.show(ctx, |ui| {
self.show_color_picker(ui);
});
}
let frame = Frame::central_panel(&ctx.style()).fill(Color32::BLACK);
CentralPanel::default().frame(frame).show(ctx, |ui| {
if let Some(screen) = self.screen.as_mut() {
screen.update(self.config.display_mode, self.config.colors);
if let Some(screen) = self.screen.as_ref() {
ui.add(screen);
}
});
toasts.show(ctx);
}
fn on_init(&mut self, render_state: &egui_wgpu::RenderState) {
let (screen, sink) = GameScreen::init(render_state);
let (message_sink, message_source) = mpsc::channel();
self.client.send_command(EmulatorCommand::ConnectToSim(
self.sim_id,
sink,
message_sink,
));
self.screen = Some(screen);
self.messages = Some(message_source);
self.client
.send_command(EmulatorCommand::SetRenderer(self.sim_id, sink));
self.screen = Some(screen)
}
fn on_destroy(&mut self) {
@ -374,22 +168,6 @@ impl AppWindow for GameWindow {
trait UiExt {
fn selectable_button(&mut self, selected: bool, text: impl Into<WidgetText>) -> Response;
fn selectable_option<T: Eq>(
&mut self,
current_value: &mut T,
selected_value: T,
text: impl Into<WidgetText>,
) -> Response {
let response = self.selectable_button(*current_value == selected_value, text);
if response.clicked() {
*current_value = selected_value;
}
response
}
fn color_pair_button(&mut self, left: Color32, right: Color32) -> Response;
fn color_picker(&mut self, color: &mut Color32, hex: &mut String) -> Response;
}
impl UiExt for Ui {
@ -400,50 +178,4 @@ impl UiExt for Ui {
let mut selected = selected;
self.checkbox(&mut selected, text)
}
fn color_pair_button(&mut self, left: Color32, right: Color32) -> Response {
let button_size = Vec2::new(60.0, 20.0);
let (rect, response) = self.allocate_at_least(button_size, Sense::click());
let center_x = rect.center().x;
let left_rect = rect.with_max_x(center_x);
self.painter().rect_filled(left_rect, 0.0, left);
let right_rect = rect.with_min_x(center_x);
self.painter().rect_filled(right_rect, 0.0, right);
let style = self.style().interact(&response);
self.painter().rect_stroke(rect, 0.0, style.fg_stroke);
response
}
fn color_picker(&mut self, color: &mut Color32, hex: &mut String) -> Response {
self.allocate_ui_with_layout(
Vec2::new(100.0, 130.0),
Layout::top_down_justified(egui::Align::Center),
|ui| {
let (rect, _) = ui.allocate_at_least(Vec2::new(100.0, 100.0), Sense::hover());
ui.painter().rect_filled(rect, 0.0, *color);
let resp = ui.text_edit_singleline(hex);
if resp.changed() {
if let Ok(new_color) = HexColor::from_str_without_hash(hex) {
*color = new_color.color();
}
}
resp
},
)
.inner
}
}
struct ColorPickerState {
color_codes: [String; 2],
just_opened: bool,
unpause_on_close: bool,
}
#[derive(Serialize, Deserialize, Clone, PartialEq, Eq)]
struct GameConfig {
display_mode: DisplayMode,
colors: [Color32; 2],
dimensions: Vec2,
}

113
src/window/game_screen.rs
View File

@ -1,16 +1,12 @@
use std::{collections::HashMap, sync::Arc};
use std::sync::Arc;
use egui::{Color32, Rgba, Vec2, Widget};
use serde::{Deserialize, Serialize};
use wgpu::{util::DeviceExt as _, BindGroup, BindGroupLayout, Buffer, RenderPipeline};
use egui::Widget;
use wgpu::{util::DeviceExt as _, BindGroup, BindGroupLayout, RenderPipeline};
use crate::graphics::TextureSink;
pub struct GameScreen {
bind_group: Arc<BindGroup>,
color_buffer: Arc<Buffer>,
display_mode: DisplayMode,
colors: Colors,
}
impl GameScreen {
@ -49,16 +45,14 @@ impl GameScreen {
],
});
let shader = device.create_shader_module(wgpu::include_wgsl!("../game.wgsl"));
let shader = device.create_shader_module(wgpu::include_wgsl!("../anaglyph.wgsl"));
let render_pipeline_layout =
device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
label: Some("render pipeline layout"),
bind_group_layouts: &[&bind_group_layout],
push_constant_ranges: &[],
});
let create_render_pipeline = |entry_point: &str| {
device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
label: Some("render pipeline"),
layout: Some(&render_pipeline_layout),
vertex: wgpu::VertexState {
@ -69,7 +63,7 @@ impl GameScreen {
},
fragment: Some(wgpu::FragmentState {
module: &shader,
entry_point,
entry_point: "fs_main",
targets: &[Some(wgpu::ColorTargetState {
format: wgpu::TextureFormat::Bgra8Unorm,
blend: Some(wgpu::BlendState::REPLACE),
@ -94,24 +88,14 @@ impl GameScreen {
},
multiview: None,
cache: None,
})
};
let mut render_pipelines = HashMap::new();
render_pipelines.insert(DisplayMode::Anaglyph, create_render_pipeline("fs_anaglyph"));
render_pipelines.insert(DisplayMode::LeftEye, create_render_pipeline("fs_lefteye"));
render_pipelines.insert(DisplayMode::RightEye, create_render_pipeline("fs_righteye"));
render_pipelines.insert(
DisplayMode::SideBySide,
create_render_pipeline("fs_sidebyside"),
);
});
render_state
.renderer
.write()
.callback_resources
.insert(SharedGameScreenResources {
render_pipelines,
pipeline: render_pipeline,
bind_group_layout,
});
}
@ -124,12 +108,12 @@ impl GameScreen {
let (sink, texture_view) = TextureSink::new(device, queue.clone());
let sampler = device.create_sampler(&wgpu::SamplerDescriptor::default());
let colors = Colors::new(
Color32::from_rgb(0xff, 0x00, 0x00),
Color32::from_rgb(0x00, 0xc6, 0xf0),
);
let colors = Colors {
left: [1.0, 0.0, 0.0, 1.0],
right: [0.0, 0.7734375, 0.9375, 1.0],
};
let color_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
let color_buf = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
label: Some("colors"),
contents: bytemuck::bytes_of(&colors),
usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
@ -152,7 +136,7 @@ impl GameScreen {
},
wgpu::BindGroupEntry {
binding: 2,
resource: color_buffer.as_entire_binding(),
resource: color_buf.as_entire_binding(),
},
],
});
@ -160,30 +144,19 @@ impl GameScreen {
(
Self {
bind_group: Arc::new(bind_group),
color_buffer: Arc::new(color_buffer),
display_mode: DisplayMode::Anaglyph,
colors,
},
sink,
)
}
pub fn update(&mut self, display_mode: DisplayMode, colors: [Color32; 2]) {
self.display_mode = display_mode;
self.colors = Colors::new(colors[0], colors[1]);
}
}
impl Widget for &mut GameScreen {
impl Widget for &GameScreen {
fn ui(self, ui: &mut egui::Ui) -> egui::Response {
let response = ui.allocate_rect(ui.clip_rect(), egui::Sense::hover());
let callback = egui_wgpu::Callback::new_paint_callback(
response.rect,
GameScreenCallback {
bind_group: self.bind_group.clone(),
color_buffer: self.color_buffer.clone(),
display_mode: self.display_mode,
colors: self.colors,
},
);
ui.painter().add(callback);
@ -193,23 +166,9 @@ impl Widget for &mut GameScreen {
struct GameScreenCallback {
bind_group: Arc<BindGroup>,
color_buffer: Arc<Buffer>,
display_mode: DisplayMode,
colors: Colors,
}
impl egui_wgpu::CallbackTrait for GameScreenCallback {
fn prepare(
&self,
_device: &wgpu::Device,
queue: &wgpu::Queue,
_screen_descriptor: &egui_wgpu::ScreenDescriptor,
_egui_encoder: &mut wgpu::CommandEncoder,
_callback_resources: &mut egui_wgpu::CallbackResources,
) -> Vec<wgpu::CommandBuffer> {
queue.write_buffer(&self.color_buffer, 0, bytemuck::bytes_of(&self.colors));
vec![]
}
fn paint(
&self,
info: egui::PaintCallbackInfo,
@ -222,19 +181,12 @@ impl egui_wgpu::CallbackTrait for GameScreenCallback {
let top = viewport.top_px as f32;
let width = viewport.width_px as f32;
let height = viewport.height_px as f32;
let aspect_ratio = {
let proportions = self.display_mode.proportions();
proportions.x / proportions.y
};
let aspect_ratio = 384.0 / 224.0;
let w = width.min(height * aspect_ratio);
let h = height.min(width / aspect_ratio);
let x = left + (width - w) / 2.0;
let y = top + (height - h) / 2.0;
let pipeline = resources
.render_pipelines
.get(&self.display_mode)
.unwrap_or_else(|| panic!("Unrecognized display mode {:?}", self.display_mode));
render_pass.set_pipeline(pipeline);
render_pass.set_pipeline(&resources.pipeline);
render_pass.set_bind_group(0, &self.bind_group, &[]);
render_pass.set_viewport(x, y, w, h, 0.0, 1.0);
render_pass.draw(0..6, 0..1);
@ -242,38 +194,13 @@ impl egui_wgpu::CallbackTrait for GameScreenCallback {
}
struct SharedGameScreenResources {
render_pipelines: HashMap<DisplayMode, RenderPipeline>,
pipeline: RenderPipeline,
bind_group_layout: BindGroupLayout,
}
#[derive(Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
#[repr(C)]
struct Colors {
left: Rgba,
right: Rgba,
}
impl Colors {
fn new(left: Color32, right: Color32) -> Self {
Self {
left: left.into(),
right: right.into(),
}
}
}
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Serialize, Deserialize)]
pub enum DisplayMode {
Anaglyph,
LeftEye,
RightEye,
SideBySide,
}
impl DisplayMode {
pub fn proportions(self) -> Vec2 {
match self {
Self::SideBySide => Vec2::new(768.0, 224.0),
_ => Vec2::new(384.0, 224.0),
}
}
left: [f32; 4],
right: [f32; 4],
}

6
src/window/input.rs
View File

@ -53,12 +53,10 @@ impl InputWindow {
ui.horizontal(|ui| {
if ui.button("Use defaults").clicked() {
mappings.write().unwrap().use_default_mappings();
self.mappings.save();
self.now_binding = None;
}
if ui.button("Clear all").clicked() {
mappings.write().unwrap().clear_all_mappings();
self.mappings.save();
self.now_binding = None;
}
});
@ -101,8 +99,6 @@ impl InputWindow {
{
let mut mapping = mappings.write().unwrap();
mapping.clear_mappings(*key);
drop(mapping);
self.mappings.save();
self.now_binding = None;
}
});
@ -214,8 +210,6 @@ impl AppWindow for InputWindow {
};
let mut mappings = self.mappings.for_sim(sim_id).write().unwrap();
mappings.add_keyboard_mapping(vb, event.physical_key);
drop(mappings);
self.mappings.save();
}
fn handle_gamepad_event(&mut self, event: &gilrs::Event) {