added check if game speed is high enough for 60 Hz vsync to work

[rocksndiamonds.git] / src / libgame / system.h

diff --git a/src/libgame/system.h b/src/libgame/system.h
index ae23c9240cddb235b0cc4333cfa9d97fb3bcb18c..f8d36daf709b24c3c372bff424bf74ddf671468e 100644 (file)
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -458,6 +458,7 @@
 #define MENU_FRAME_DELAY       20      /* frame delay in milliseconds */
 #define GAME_FRAME_DELAY       20      /* frame delay in milliseconds */
 #define FFWD_FRAME_DELAY       10      /* 200% speed for fast forward */
+#define MAX_VSYNC_FRAME_DELAY  16      /* maximum value for vsync to work */
 #define FRAMES_PER_SECOND      (ONE_SECOND_DELAY / GAME_FRAME_DELAY)
 #define FRAMES_PER_SECOND_SP   35