Init of Discord Rich Presence for Slippi

Cargo.toml

@@ -23,6 +23,7 @@ debug = true
 panic = "abort"
 
 [workspace.dependencies]
+thiserror = "1.0.44"
 time = { version = "0.3.20", default-features = false, features = ["std", "local-offset"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = { version = "1" }

discord-rpc/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "slippi-discord-rpc"
+description = "A library for interfacing with Discord Rich Presence, providing real-time game state updates from Dolphin emulator."
+version = "0.1.0"
+authors = [
+    "Slippi Team",
+    "Anders Madsen <[email protected]>"
+]
+edition = "2021"
+publish = false
+
+[features]
+default = []
+ishiiruka = []
+mainline = []
+
+[dependencies]
+dolphin-integrations = { path = "../dolphin" }
+hps_decode = "0.1.1"
+process-memory = "0.5.0"
+rodio = "0.17.1"
+thiserror = "1.0.44"
+tracing = { workspace = true }

discord-rpc/src/errors.rs

@@ -0,0 +1,37 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum DiscordRPCError {
+    #[error("{0}")]
+    GenericIO(#[from] std::io::Error),
+
+    #[error("Failed to spawn thread: {0}")]
+    ThreadSpawn(std::io::Error),
+
+    #[error("Unexpected null pointer or unaligned read from Dolphin's memory: {0}")]
+    DolphinMemoryRead(std::io::Error),
+
+    #[error("Failed to decode music file: {0}")]
+    MusicFileDecoding(#[from] hps_decode::hps::HpsParseError),
+
+    #[error("Unable to get an audio device handle: {0}")]
+    AudioDevice(#[from] rodio::StreamError),
+
+    #[error("Unable to play sound with rodio: {0}")]
+    AudioPlayback(#[from] rodio::PlayError),
+
+    #[error("Failed to parse ISO's Filesystem Table: {0}")]
+    FstParse(String),
+
+    #[error("Failed to seek the ISO: {0}")]
+    IsoSeek(std::io::Error),
+
+    #[error("Failed to read the ISO: {0}")]
+    IsoRead(std::io::Error),
+
+    #[error("The provided game file is not supported")]
+    UnsupportedIso,
+
+    #[error("Unknown Jukebox Error")]
+    Unknown,
+}