From 27d9e34ff9b23eaef41ad79d85113b1b8dabdf08 Mon Sep 17 00:00:00 2001
From: Andrew <andrew@digerati.co.nz>
Date: Thu, 18 May 2023 10:39:11 +1200
Subject: [PATCH] Remove use of IndexMap

---
 src/lib.rs     | 2 +-
 src/png/mod.rs | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index aed4cc36..d102a72e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -46,7 +46,7 @@ pub use crate::error::PngError;
 pub use crate::filters::RowFilter;
 pub use crate::headers::StripChunks;
 pub use crate::interlace::Interlacing;
-pub use indexmap::{indexset, IndexMap, IndexSet};
+pub use indexmap::{indexset, IndexSet};
 pub use rgb::{RGB16, RGBA8};
 
 mod atomicmin;
diff --git a/src/png/mod.rs b/src/png/mod.rs
index 0a07bf32..cfa307a2 100644
--- a/src/png/mod.rs
+++ b/src/png/mod.rs
@@ -6,7 +6,6 @@ use crate::headers::*;
 use crate::interlace::{deinterlace_image, interlace_image, Interlacing};
 use crate::Options;
 use bitvec::bitarr;
-use indexmap::IndexMap;
 use libdeflater::{CompressionLvl, Compressor};
 use rgb::ComponentSlice;
 use rustc_hash::FxHashMap;
@@ -92,7 +91,7 @@ impl PngData {
 
         // Read the data chunks
         let mut idat_data: Vec<u8> = Vec::new();
-        let mut key_chunks: IndexMap<[u8; 4], Vec<u8>> = IndexMap::new();
+        let mut key_chunks: FxHashMap<[u8; 4], Vec<u8>> = FxHashMap::default();
         let mut aux_chunks: Vec<Chunk> = Vec::new();
         while let Some(chunk) = parse_next_chunk(byte_data, &mut byte_offset, opts.fix_errors)? {
             match &chunk.name {