From: Holger Schemel <info@artsoft.org>
Date: Thu, 3 Sep 2020 23:54:03 +0000 (+0200)
Subject: added setting video vsync mode when creating renderer
X-Git-Tag: 4.2.0.2~10
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=47593c038f8d8155cbd1722d641c652a486f76bf;p=rocksndiamonds.git

added setting video vsync mode when creating renderer

Changing the vsync mode after creating the renderer only works for the
OpenGL renderer. For all other renderers, it must be set when creating
the renderer.

This means that changes to the vsync mode settings in the setup menu
currently only take effect after restarting the program.
---

diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index ab914a4e..c7a87297 100644
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -515,6 +515,14 @@ static boolean SDLCreateScreen(boolean fullscreen)
 
 #if 1
   int renderer_flags = SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE;
+
+  video.vsync_mode = VSYNC_MODE_OFF;
+
+  if (!strEqual(setup.vsync_mode, STR_VSYNC_MODE_OFF))
+  {
+    renderer_flags |= SDL_RENDERER_PRESENTVSYNC;
+    video.vsync_mode = VSYNC_MODE_NORMAL;
+  }
 #else
   /* If SDL_CreateRenderer() is called from within a VirtualBox Windows VM
      _without_ enabling 2D/3D acceleration and/or guest additions installed,
@@ -587,6 +595,7 @@ static boolean SDLCreateScreen(boolean fullscreen)
       // SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
       SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, setup.window_scaling_quality);
 
+      // required for setting adaptive vsync when using OpenGL renderer
       SDLSetScreenVsyncMode(setup.vsync_mode);
 
       sdl_texture_stream = SDL_CreateTexture(sdl_renderer,