1 files changed, 53 insertions, 0 deletions
diff --git a/hotfix-02_perf-disable-vsync-by-default-4414.patch b/hotfix-02_perf-disable-vsync-by-default-4414.patch
new file mode 100644
index 0000000..4220a06
--- /dev/null
+++ b/hotfix-02_perf-disable-vsync-by-default-4414.patch
@@ -0,0 +1,53 @@
+From 404ca35f036358419353107cfbbfcf7c95f89ba8 Mon Sep 17 00:00:00 2001
+From: scarf <greenscarf005@gmail.com>
+Date: Mon, 1 Apr 2024 00:50:26 +0900
+Subject: [PATCH] perf: disable vsync by default (#4414)
+
+* perf: disable vsync by default
+
+* fix: warn vsync performance
+---
+ src/options.cpp  | 7 +++++++
+ src/sdltiles.cpp | 8 ++++++--
+ 2 files changed, 13 insertions(+), 2 deletions(-)
+
+diff --git a/src/options.cpp b/src/options.cpp
+index 85832403dc0..684e8cbd48e 100644
+--- a/src/options.cpp
++++ b/src/options.cpp
+@@ -2090,6 +2090,13 @@ void options_manager::add_options_graphics()
+          false, COPT_CURSES_HIDE
+        );
+ 
++#if defined(SDL_HINT_RENDER_VSYNC)
++    add( "VSYNC", graphics, translate_marker( "Use VSync" ),
++         translate_marker( "Enable vertical synchronization to prevent screen tearing.  VSync can slow the game down a lot.  Requires restart." ),
++         false, COPT_CURSES_HIDE
++       );
++#endif
++
+ #if defined(__ANDROID__)
+     get_option( "FRAMEBUFFER_ACCEL" ).setPrerequisite( "SOFTWARE_RENDERING" );
+ #else
+diff --git a/src/sdltiles.cpp b/src/sdltiles.cpp
+index 226513ad2ff..561d2e767da 100644
+--- a/src/sdltiles.cpp
++++ b/src/sdltiles.cpp
+@@ -350,8 +350,12 @@ static void WinCreate()
+     if( !software_renderer ) {
+         dbg( DL::Info ) << "Attempting to initialize accelerated SDL renderer.";
+ 
+-        renderer.reset( SDL_CreateRenderer( ::window.get(), renderer_id, SDL_RENDERER_ACCELERATED |
+-                                            SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_TARGETTEXTURE ) );
++        int init_flags = SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE;
++        if( get_option<bool>( "VSYNC" ) ) {
++            init_flags |= SDL_RENDERER_PRESENTVSYNC;
++        }
++
++        renderer.reset( SDL_CreateRenderer( ::window.get(), renderer_id, init_flags ) );
+         if( printErrorIf( !renderer,
+                           "Failed to initialize accelerated renderer, falling back to software rendering" ) ) {
+             software_renderer = true;
+-- 
+2.43.0
+