From e3f188abe95ab537cca4fc69e27fc476be85c3d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Magalh=C3=A3es?= <joamag@gmail.com>
Date: Sun, 3 Jul 2022 02:19:40 +0100
Subject: [PATCH] feat: initial web support
---
README.md | 19 +++++++++++++++++++
src/gb.rs | 36 ++++++++++++++++++++++--------------
2 files changed, 41 insertions(+), 14 deletions(-)
diff --git a/README.md b/README.md
index 92442418..3d3d479a 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,25 @@
A Game Boy emulator that is written in Rust 🦀.
+## Build
+
+### WASM for Node.js
+
+```bash
+cargo install wasm-pack
+wasm-pack build --release --target=nodejs -- --features wasm
+```
+
+### WASM for Web
+
+```bash
+cargo install wasm-pack
+wasm-pack build --release --target=web --out-dir=examples/web/lib -- --features wasm
+cd examples/web
+npm install && npm run build
+cd dist && python3 -m http.server
+```
+
## Inspiration
### Documentation
diff --git a/src/gb.rs b/src/gb.rs
index f1ae2ce1..e918ba68 100644
--- a/src/gb.rs
+++ b/src/gb.rs
@@ -5,11 +5,17 @@ use crate::{
util::read_file,
};
+#[cfg(feature = "wasm")]
+use wasm_bindgen::prelude::*;
+
+#[cfg_attr(feature = "wasm", wasm_bindgen)]
pub struct GameBoy {
cpu: Cpu,
}
+#[cfg_attr(feature = "wasm", wasm_bindgen)]
impl GameBoy {
+ #[cfg_attr(feature = "wasm", wasm_bindgen(constructor))]
pub fn new() -> GameBoy {
let ppu = Ppu::new();
let mmu = Mmu::new(ppu);
@@ -31,6 +37,22 @@ impl GameBoy {
self.ppu().clock(cycles)
}
+ pub fn load_rom(&mut self, path: &str) {
+ let data = read_file(path);
+ self.cpu.mmu().write_rom(0x0000, &data);
+ }
+
+ pub fn load_boot(&mut self, path: &str) {
+ let data = read_file(path);
+ self.cpu.mmu().write_boot(0x0000, &data);
+ }
+
+ pub fn load_boot_default(&mut self) {
+ self.load_boot("./res/dmg_rom.bin");
+ }
+}
+
+impl GameBoy {
pub fn cpu(&mut self) -> &mut Cpu {
&mut self.cpu
}
@@ -46,18 +68,4 @@ impl GameBoy {
pub fn frame_buffer(&mut self) -> &Box<[u8; FRAME_BUFFER_SIZE]> {
&(self.ppu().frame_buffer)
}
-
- pub fn load_rom(&mut self, path: &str) {
- let data = read_file(path);
- self.cpu.mmu().write_rom(0x0000, &data);
- }
-
- pub fn load_boot(&mut self, path: &str) {
- let data = read_file(path);
- self.cpu.mmu().write_boot(0x0000, &data);
- }
-
- pub fn load_boot_default(&mut self) {
- self.load_boot("./res/dmg_rom.bin");
- }
}
--
GitLab