Commit 0925032f authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

Rotate: thread-safety

parent 3688c5dc
......@@ -86,6 +86,7 @@ static const char *const ppsz_filter_options[] = {
*****************************************************************************/
struct filter_sys_t
{
vlc_spinlock_t lock;
int i_cos;
int i_sin;
};
......@@ -141,6 +142,7 @@ static int Create( vlc_object_t *p_this )
cache_trigo( i_angle, &p_sys->i_sin, &p_sys->i_cos );
var_Create( p_filter, FILTER_PREFIX "deciangle",
VLC_VAR_INTEGER|VLC_VAR_ISCOMMAND );
vlc_spin_init( &p_sys->lock );
var_AddCallback( p_filter, FILTER_PREFIX "angle", RotateCallback, p_sys );
var_AddCallback( p_filter, FILTER_PREFIX "deciangle",
PreciseRotateCallback, p_sys );
......@@ -159,7 +161,7 @@ static void Destroy( vlc_object_t *p_this )
var_DelCallback( p_filter, FILTER_PREFIX "angle", RotateCallback, p_filter->p_sys );
var_DelCallback( p_filter, FILTER_PREFIX "deciangle",
PreciseRotateCallback, p_filter->p_sys );
vlc_spin_destroy( &p_filter->p_sys->lock );
free( p_filter->p_sys );
}
......@@ -170,8 +172,7 @@ static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
picture_t *p_outpic;
filter_sys_t *p_sys = p_filter->p_sys;
int i_plane;
const int i_sin = p_sys->i_sin, i_cos = p_sys->i_cos;
int i_sin, i_cos;
if( !p_pic ) return NULL;
......@@ -182,7 +183,12 @@ static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
return NULL;
}
for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
vlc_spin_lock( &p_sys->lock );
i_sin = p_sys->i_sin;
i_cos = p_sys->i_cos;
vlc_spin_unlock( &p_sys->lock );
for( int i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
{
const int i_visible_lines = p_pic->p[i_plane].i_visible_lines;
const int i_visible_pitch = p_pic->p[i_plane].i_visible_pitch;
......@@ -390,11 +396,9 @@ static int RotateCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(psz_var); VLC_UNUSED(oldval);
filter_sys_t *p_sys = (filter_sys_t *)p_data;
cache_trigo( newval.i_int * 10, &p_sys->i_sin, &p_sys->i_cos );
return VLC_SUCCESS;
oldval.i_int *= 10;
newval.i_int *= 10;
return PreciseRotateCallback( p_this, psz_var, oldval, newval, p_data );
}
static int PreciseRotateCallback( vlc_object_t *p_this, char const *psz_var,
......@@ -403,7 +407,12 @@ static int PreciseRotateCallback( vlc_object_t *p_this, char const *psz_var,
{
VLC_UNUSED(p_this); VLC_UNUSED(psz_var); VLC_UNUSED(oldval);
filter_sys_t *p_sys = (filter_sys_t *)p_data;
int i_sin, i_cos;
cache_trigo( newval.i_int, &p_sys->i_sin, &p_sys->i_cos );
cache_trigo( newval.i_int, &i_sin, &i_cos );
vlc_spin_lock( &p_sys->lock );
p_sys->i_sin = i_sin;
p_sys->i_cos = i_cos;
vlc_spin_unlock( &p_sys->lock );
return VLC_SUCCESS;
}
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