OSX GUI: store the interface pointer to avoid multiple accesses.

It saves quite a bit of CPU time over when VLCIntf is accessed several times.
(cherry picked from commit a8a01ed0307bca22db3f63a4af679da60e266327)
Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

modules/gui/macosx/CoreInteraction.m

@@ -118,8 +118,10 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)toggleRecord
 {
+    intf_thread_t *p_intf = VLCIntf;
+
     input_thread_t * p_input;
-    p_input = pl_CurrentInput( VLCIntf );
+    p_input = pl_CurrentInput( p_intf );
     if( p_input )
     {
         var_ToggleBool( p_input, "record" );
@@ -142,8 +144,10 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 {
     float f_rate;
 
+    intf_thread_t *p_intf = VLCIntf;
+
     input_thread_t * p_input;
-    p_input = pl_CurrentInput( VLCIntf );
+    p_input = pl_CurrentInput( p_intf );
     if (p_input)
     {
         f_rate = var_GetFloat( p_input, "rate" );
@@ -179,7 +183,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (BOOL)isPlaying
 {
-    input_thread_t * p_input = pl_CurrentInput( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    input_thread_t * p_input = pl_CurrentInput( p_intf );
 
     if (!p_input) return NO;
 
@@ -216,7 +222,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (int)durationOfCurrentPlaylistItem
 {
-    input_thread_t * p_input = pl_CurrentInput( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    input_thread_t * p_input = pl_CurrentInput( p_intf );
     int64_t i_duration = -1;
     if (!p_input) return i_duration;
 
@@ -229,7 +237,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (NSURL*)URLOfCurrentPlaylistItem
 {
-    input_thread_t *p_input = pl_CurrentInput( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    input_thread_t *p_input = pl_CurrentInput( p_intf );
     if (!p_input) return nil;
 
     input_item_t *p_item = input_GetItem( p_input );
@@ -255,7 +265,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (NSString*)nameOfCurrentPlaylistItem
 {
-    input_thread_t *p_input = pl_CurrentInput( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    input_thread_t *p_input = pl_CurrentInput( p_intf );
     if (!p_input) return nil;
 
     input_item_t *p_item = input_GetItem( p_input );
@@ -347,8 +359,10 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)shuffle
 {
+    intf_thread_t *p_intf = VLCIntf;
+
     vlc_value_t val;
-    playlist_t * p_playlist = pl_Get( VLCIntf );
+    playlist_t * p_playlist = pl_Get( p_intf );
     vout_thread_t *p_vout = getVout();
 
     var_Get( p_playlist, "random", &val );
@@ -376,7 +390,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)repeatAll
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    playlist_t * p_playlist = pl_Get( p_intf );
 
     var_SetBool( p_playlist, "repeat", NO );
     var_SetBool( p_playlist, "loop", YES );
@@ -393,7 +409,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)repeatOne
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    playlist_t * p_playlist = pl_Get( p_intf );
 
     var_SetBool( p_playlist, "repeat", YES );
     var_SetBool( p_playlist, "loop", NO );
@@ -410,7 +428,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)repeatOff
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
+    playlist_t * p_playlist = pl_Get( p_intf );
 
     var_SetBool( p_playlist, "repeat", NO );
     var_SetBool( p_playlist, "loop", NO );
@@ -427,46 +447,49 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)volumeUp
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
-    aout_VolumeUp( p_playlist, 1, NULL );
+    intf_thread_t *p_intf = VLCIntf;
+
+    aout_VolumeUp( pl_Get( p_intf ), 1, NULL );
 }
 
 - (void)volumeDown
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
-    aout_VolumeDown( p_playlist, 1, NULL );
+    intf_thread_t *p_intf = VLCIntf;
+
+    aout_VolumeDown( pl_Get( p_intf ), 1, NULL );
 }
 
 - (void)mute
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
-    aout_ToggleMute( p_playlist, NULL );
+    intf_thread_t *p_intf = VLCIntf;
+
+    aout_ToggleMute( pl_Get( p_intf ), NULL );
 }
 
 - (BOOL)isMuted
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
+
     BOOL b_is_muted = NO;
-    b_is_muted = aout_IsMuted( VLC_OBJECT(p_playlist) );
+    b_is_muted = aout_IsMuted( VLC_OBJECT(pl_Get( p_intf )) );
 
     return b_is_muted;
 }
 
 - (int)volume
 {
-    intf_thread_t * p_intf = VLCIntf;
-    playlist_t * p_playlist = pl_Get( VLCIntf );
-    audio_volume_t i_volume = aout_VolumeGet( p_playlist );
+    intf_thread_t *p_intf = VLCIntf;
+
+    audio_volume_t i_volume = aout_VolumeGet( pl_Get( p_intf ) );
 
     return (int)i_volume;
 }
 
 - (void)setVolume: (int)i_value
 {
-    intf_thread_t * p_intf = VLCIntf;
-    playlist_t * p_playlist = pl_Get( VLCIntf );
+    intf_thread_t *p_intf = VLCIntf;
 
-    aout_VolumeSet( p_playlist, i_value );
+    aout_VolumeSet( pl_Get( p_intf ), i_value );
 }
 
 #pragma mark -
@@ -484,8 +507,9 @@ static VLCCoreInteraction *_o_sharedInstance = nil;
 
 - (void)toggleFullscreen
 {
-    playlist_t * p_playlist = pl_Get( VLCIntf );
-    var_ToggleBool( p_playlist, "fullscreen" );
+    intf_thread_t *p_intf = VLCIntf;
+
+    var_ToggleBool( pl_Get( p_intf ), "fullscreen" );
 }
 
 @end