From 25e15baa2b77dd07cabb337f649673a9eed138bb Mon Sep 17 00:00:00 2001
From: Gwilym Inzani <email@gwilym.dev>
Date: Wed, 3 Apr 2024 13:38:49 +0100
Subject: [PATCH] Compress the debug data for quite a large saving

---
 agb-gbafix/Cargo.lock | 32 ++++++++++++++++++++++++++++++++
 agb-gbafix/Cargo.toml |  1 +
 agb-gbafix/src/lib.rs |  6 +++++-
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/agb-gbafix/Cargo.lock b/agb-gbafix/Cargo.lock
index 74b92ff4..8212dcdd 100644
--- a/agb-gbafix/Cargo.lock
+++ b/agb-gbafix/Cargo.lock
@@ -9,6 +9,7 @@ dependencies = [
  "anyhow",
  "clap",
  "elf",
+ "lz4_flex",
  "rmp-serde",
 ]
 
@@ -78,6 +79,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "clap"
 version = "4.5.3"
@@ -117,6 +124,15 @@ version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4445909572dbd556c457c849c4ca58623d84b27c8fff1e74b0b4227d8b90d17b"
 
+[[package]]
+name = "lz4_flex"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75761162ae2b0e580d7e7c390558127e5f01b4194debd6221fd8c207fc80e3f5"
+dependencies = [
+ "twox-hash",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.18"
@@ -192,6 +208,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
 [[package]]
 name = "strsim"
 version = "0.11.0"
@@ -209,6 +231,16 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "twox-hash"
+version = "1.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
+dependencies = [
+ "cfg-if",
+ "static_assertions",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.12"
diff --git a/agb-gbafix/Cargo.toml b/agb-gbafix/Cargo.toml
index 153466f3..a0099926 100644
--- a/agb-gbafix/Cargo.toml
+++ b/agb-gbafix/Cargo.toml
@@ -12,6 +12,7 @@ elf = "0.7"
 anyhow = "1"
 clap = "4"
 rmp-serde = "1"
+lz4_flex = "0.11"
 
 [profile.dev]
 opt-level = 3
diff --git a/agb-gbafix/src/lib.rs b/agb-gbafix/src/lib.rs
index ed86b1db..f2636550 100644
--- a/agb-gbafix/src/lib.rs
+++ b/agb-gbafix/src/lib.rs
@@ -165,7 +165,11 @@ fn write_debug<W: Write>(
     }
 
     let mut debug_data = vec![];
-    rmp_serde::encode::write(&mut debug_data, &debug_sections)?;
+    {
+        let mut compressed_writer = lz4_flex::frame::FrameEncoder::new(&mut debug_data);
+        rmp_serde::encode::write(&mut compressed_writer, &debug_sections)?;
+        compressed_writer.flush()?;
+    }
 
     output.write_all(&debug_data)?;
     output.write_all(&(debug_data.len() as u32).to_le_bytes())?;