Add ticks64 (#294)

This is a wrapper around SDL_GetTicks64

Author: dxtr

src/SDL/Raw/Timer.hs

@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
 module SDL.Raw.Timer (
   -- * Timer Support
   addTimer,
@@ -6,6 +8,10 @@ module SDL.Raw.Timer (
   getPerformanceFrequency,
   getTicks,
   removeTimer
+
+#ifdef RECENT_ISH
+  , getTicks64
+#endif
 ) where
 
 import Control.Monad.IO.Class
@@ -21,6 +27,10 @@ foreign import ccall "SDL.h SDL_GetPerformanceFrequency" getPerformanceFrequency
 foreign import ccall "SDL.h SDL_GetTicks" getTicksFFI :: IO Word32
 foreign import ccall "SDL.h SDL_RemoveTimer" removeTimerFFI :: TimerID -> IO Bool
 
+#ifdef RECENT_ISH
+foreign import ccall "SDL.h SDL_GetTicks64" getTicks64FFI :: IO Word64
+#endif
+
 addTimer :: MonadIO m => Word32 -> TimerCallback -> Ptr () -> m TimerID
 addTimer v1 v2 v3 = liftIO $ addTimerFFI v1 v2 v3
 {-# INLINE addTimer #-}
@@ -44,3 +54,9 @@ getTicks = liftIO getTicksFFI
 removeTimer :: MonadIO m => TimerID -> m Bool
 removeTimer v1 = liftIO $ removeTimerFFI v1
 {-# INLINE removeTimer #-}
+
+#ifdef RECENT_ISH
+getTicks64 :: MonadIO m => m Word64
+getTicks64 = liftIO getTicks64FFI
+{-# INLINE getTicks64 #-}
+#endif

src/SDL/Time.hs

@@ -1,6 +1,8 @@
+{-# LANGUAGE CPP                #-}
 {-# LANGUAGE DeriveDataTypeable #-}
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE CPP #-}
 module SDL.Time
   ( -- * Time Measurement
     ticks
@@ -13,6 +15,10 @@ module SDL.Time
   , RetriggerTimer(..)
   , addTimer
   , removeTimer
+
+#ifdef RECENT_ISH
+  , ticks64
+#endif
   ) where
 
 import Control.Monad.IO.Class (MonadIO, liftIO)
@@ -93,3 +99,11 @@ addTimer timeout callback = liftIO $ do
 -- See @<https://wiki.libsdl.org/SDL_RemoveTimer SDL_RemoveTimer>@ for C documentation.
 removeTimer :: MonadIO m => Timer -> m Bool
 removeTimer f = liftIO $ runTimerRemoval f
+
+#ifdef RECENT_ISH
+-- | Number of milliseconds since library initialization.
+--
+-- See @<https://wiki.libsdl.org/SDL_GetTicks64 SDL_GetTicks64>@ for C documentation.
+ticks64 :: MonadIO m => m Word64
+ticks64 = Raw.getTicks64
+#endif