From 968038aa79f1abc78b28b0e96ab600526f6ae836 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?kleines=20Filmr=C3=B6llchen?= <filmroellchen@serenityos.org>
Date: Tue, 12 Sep 2023 22:44:07 +0200
Subject: [PATCH] LibAudio: Use mapped files for audio playback

This is 10-20% of a speed increase on platforms with fast I/O (Linux)
and not a slowdown on Serenity. Again, the file system layer is the
limit for us :^)
---
 Userland/Libraries/LibAudio/Loader.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Userland/Libraries/LibAudio/Loader.cpp b/Userland/Libraries/LibAudio/Loader.cpp
index 62933e600b..31dbd2e84c 100644
--- a/Userland/Libraries/LibAudio/Loader.cpp
+++ b/Userland/Libraries/LibAudio/Loader.cpp
@@ -10,7 +10,7 @@
 #include <LibAudio/MP3Loader.h>
 #include <LibAudio/QOALoader.h>
 #include <LibAudio/WavLoader.h>
-#include <LibCore/File.h>
+#include <LibCore/MappedFile.h>
 
 namespace Audio {
 
@@ -44,7 +44,7 @@ static constexpr LoaderPluginInitializer s_initializers[] = {
 
 ErrorOr<NonnullRefPtr<Loader>, LoaderError> Loader::create(StringView path)
 {
-    auto stream = TRY(Core::InputBufferedFile::create(TRY(Core::File::open(path, Core::File::OpenMode::Read))));
+    auto stream = TRY(Core::MappedFile::map(path, Core::MappedFile::OpenMode::ReadOnly));
     return adopt_ref(*new (nothrow) Loader(TRY(Loader::create_plugin(move(stream)))));
 }