Optimize vout_PlacePicture prototype

include/vlc_vout.h

@@ -666,7 +666,7 @@ VLC_EXPORT( void,            vout_DestroyPicture, ( vout_thread_t *, picture_t *
 VLC_EXPORT( void,            vout_DisplayPicture, ( vout_thread_t *, picture_t * ) );
 VLC_EXPORT( void,            vout_LinkPicture,    ( vout_thread_t *, picture_t * ) );
 VLC_EXPORT( void,            vout_UnlinkPicture,  ( vout_thread_t *, picture_t * ) );
-VLC_EXPORT( void,            vout_PlacePicture,   ( vout_thread_t *, unsigned int, unsigned int, unsigned int *, unsigned int *, unsigned int *, unsigned int * ) );
+VLC_EXPORT( void,            vout_PlacePicture,   ( const vout_thread_t *, unsigned int, unsigned int, unsigned int *, unsigned int *, unsigned int *, unsigned int * ) );
 
 VLC_EXPORT( int, vout_vaControlDefault, ( vout_thread_t *, int, va_list ) );
 void vout_IntfInit( vout_thread_t * );

src/video_output/vout_pictures.c

@@ -448,10 +448,12 @@ picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
  * This function will be accessed by plugins. It calculates the relative
  * position of the output window and the image window.
  */
-void vout_PlacePicture( vout_thread_t *p_vout,
+void vout_PlacePicture( const vout_thread_t *p_vout,
                         unsigned int i_width, unsigned int i_height,
-                        unsigned int *pi_x, unsigned int *pi_y,
-                        unsigned int *pi_width, unsigned int *pi_height )
+                        unsigned int *restrict pi_x,
+                        unsigned int *restrict pi_y,
+                        unsigned int *restrict pi_width,
+                        unsigned int *restrict pi_height )
 {
     if( (i_width <= 0) || (i_height <=0) )
     {