From 66108d102e785a1f2641b2f1df2d2b8c76e5d535 Mon Sep 17 00:00:00 2001
From: Lucas CHOLLET <lucas.chollet@free.fr>
Date: Fri, 28 Apr 2023 22:47:05 -0400
Subject: [PATCH] LibGfx/JPEG: Store previous DC values in `i16`

Forgotten child of cfaa5120.
---
 Userland/Libraries/LibGfx/ImageFormats/JPEGLoader.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Userland/Libraries/LibGfx/ImageFormats/JPEGLoader.cpp b/Userland/Libraries/LibGfx/ImageFormats/JPEGLoader.cpp
index df62aba422..020ada9f9e 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/JPEGLoader.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/JPEGLoader.cpp
@@ -250,7 +250,7 @@ struct JPEGLoadingContext {
     u16 dc_restart_interval { 0 };
     HashMap<u8, HuffmanTableSpec> dc_tables;
     HashMap<u8, HuffmanTableSpec> ac_tables;
-    Array<i32, 4> previous_dc_values {};
+    Array<i16, 4> previous_dc_values {};
     MacroblockMeta mblock_meta;
     OwnPtr<FixedMemoryStream> stream;
 
@@ -366,7 +366,7 @@ static ErrorOr<void> add_dc(JPEGLoadingContext& context, Macroblock& macroblock,
     }
 
     // DC coefficients are encoded as the difference between previous and current DC values.
-    i32 dc_diff = TRY(read_huffman_bits(scan.huffman_stream, dc_length));
+    i16 dc_diff = TRY(read_huffman_bits(scan.huffman_stream, dc_length));
 
     // If MSB in diff is 0, the difference is -ve. Otherwise +ve.
     if (dc_length != 0 && dc_diff < (1 << (dc_length - 1)))