deinterlace: make pf_end_merge an x86-only thing

modules/video_filter/deinterlace/deinterlace.c

@@ -629,10 +629,7 @@ int Open( vlc_object_t *p_this )
 
 #if defined(CAN_COMPILE_C_ALTIVEC)
     if( chroma->pixel_size == 1 && vlc_CPU_ALTIVEC() )
-    {
         p_sys->pf_merge = MergeAltivec;
-        p_sys->pf_end_merge = NULL;
-    }
     else
 #endif
 #if defined(CAN_COMPILE_SSE)
@@ -661,15 +658,14 @@ int Open( vlc_object_t *p_this )
 #endif
 #if defined __ARM_NEON__ // FIXME: runtime detect support
     if( chroma->pixel_size == 1 && vlc_CPU_ARM_NEON() )
-    {
         p_sys->pf_merge = MergeNEON;
-        p_sys->pf_end_merge = NULL;
-    }
     else
 #endif
     {
         p_sys->pf_merge = chroma->pixel_size == 1 ? Merge8BitGeneric : Merge16BitGeneric;
+#if defined(__i386__) || defined(__x86_64__)
         p_sys->pf_end_merge = NULL;
+#endif
     }
 
     /* */

modules/video_filter/deinterlace/deinterlace.h

@@ -91,7 +91,7 @@ struct filter_sys_t
 {
     const vlc_chroma_description_t *chroma;
 
-    int  i_mode;              /**< Deinterlace mode */
+    uint8_t  i_mode;              /**< Deinterlace mode */
 
     /* Algorithm behaviour flags */
     bool b_double_rate;       /**< Shall we double the framerate? */
@@ -100,8 +100,10 @@ struct filter_sys_t
 
     /** Merge routine: C, MMX, SSE, ALTIVEC, NEON, ... */
     void (*pf_merge) ( void *, const void *, const void *, size_t );
-    /** Merge finalization routine: C, MMX, SSE, ALTIVEC, NEON, ... */
+#if defined (__i386__) || defined (__x86_64__)
+    /** Merge finalization routine for SSE */
     void (*pf_end_merge) ( void );
+#endif
 
     /**
      * Metadata history (PTS, nb_fields, TFF). Used for framerate doublers.

modules/video_filter/deinterlace/merge.h

@@ -64,7 +64,12 @@
  * EndMerge() macro, which must be called after the merge is
  * finished, if the Merge() macro was used to perform the merge.
  */
-#define EndMerge if(p_filter->p_sys->pf_end_merge) p_filter->p_sys->pf_end_merge
+#if defined(__i386__) || defined(__x86_64__)
+# define EndMerge() \
+    if(p_filter->p_sys->pf_end_merge) (p_filter->p_sys->pf_end_merge)()
+#else
+# define EndMerge() (void)0
+#endif
 
 /*****************************************************************************
  * Merge routines