]> git.sesse.net Git - vlc/blobdiff - src/video_output/vout_subpictures.c
Fixed spu_RenderSubpictures prototype.
[vlc] / src / video_output / vout_subpictures.c
index 5e6b6e6123fb857416ac721cc0a9848448f41d4d..5cff7dfb2656038198cd8a6d655e97fa9364944e 100644 (file)
@@ -59,28 +59,20 @@ static int spu_ParseChain( spu_t * );
 static int SubFilterCallback( vlc_object_t *, char const *,
                               vlc_value_t, vlc_value_t, void * );
 
-static int sub_filter_allocation_init( filter_t *, void * );
-static void sub_filter_allocation_clear( filter_t * );
+static int SubFilterAllocationInit( filter_t *, void * );
+static void SubFilterAllocationClean( filter_t * );
 struct filter_owner_sys_t
 {
     spu_t *p_spu;
     int i_channel;
 };
 
-enum {
-    SCALE_DEFAULT,
-    SCALE_TEXT,
-    SCALE_SIZE
-};
+#define SCALE_UNIT (1000)
 
-static void FilterRelease( filter_t *p_filter )
-{
-    if( p_filter->p_module )
-        module_Unneed( p_filter, p_filter->p_module );
-
-    vlc_object_detach( p_filter );
-    vlc_object_release( p_filter );
-}
+/* */
+static void SpuRenderCreateAndLoadText( spu_t *p_spu );
+static void SpuRenderCreateAndLoadScale( spu_t *p_spu );
+static void FilterRelease( filter_t *p_filter );
 
 /**
  * Creates the subpicture unit
@@ -112,9 +104,14 @@ spu_t *__spu_Create( vlc_object_t *p_this )
     vlc_object_attach( p_spu, p_this );
 
     p_spu->p_chain = filter_chain_New( p_spu, "sub filter", false,
-                                       sub_filter_allocation_init,
-                                       sub_filter_allocation_clear,
+                                       SubFilterAllocationInit,
+                                       SubFilterAllocationClean,
                                        p_spu );
+
+    /* Load text and scale module */
+    SpuRenderCreateAndLoadText( p_spu );
+    SpuRenderCreateAndLoadScale( p_spu );
+
     return p_spu;
 }
 
@@ -216,48 +213,51 @@ void spu_Attach( spu_t *p_spu, vlc_object_t *p_this, bool b_attach )
     }
 }
 
-/**
- * Create a subpicture region
- *
- * \param p_this vlc_object_t
- * \param p_fmt the format that this subpicture region should have
- */
+
+/* */
 static void RegionPictureRelease( picture_t *p_pic )
 {
     free( p_pic->p_data_orig );
     /* We use pf_release nullity to know if the picture has already been released. */
     p_pic->pf_release = NULL;
 }
+
+/**
+ * Create a subpicture region
+ *
+ * \param p_this vlc_object_t
+ * \param p_fmt the format that this subpicture region should have
+ */
 subpicture_region_t *__spu_CreateRegion( vlc_object_t *p_this,
                                          video_format_t *p_fmt )
 {
-    subpicture_region_t *p_region = malloc( sizeof(subpicture_region_t) );
-    if( !p_region ) return NULL;
+    subpicture_region_t *p_region = calloc( 1, sizeof(*p_region ) );
+    if( !p_region )
+        return NULL;
 
-    memset( p_region, 0, sizeof(subpicture_region_t) );
+    /* FIXME is that *really* wanted? */
+    if( p_fmt->i_chroma == VLC_FOURCC('Y','U','V','P') )
+        p_fmt->p_palette = calloc( 1, sizeof(video_palette_t) );
+    else
+        p_fmt->p_palette = NULL;    /* XXX and that above all? */
+
+    p_region->fmt = *p_fmt;
     p_region->i_alpha = 0xff;
     p_region->p_next = NULL;
     p_region->p_cache = NULL;
-    p_region->fmt = *p_fmt;
     p_region->psz_text = NULL;
     p_region->p_style = NULL;
 
-    if( p_fmt->i_chroma == VLC_FOURCC('Y','U','V','P') )
-        p_fmt->p_palette = p_region->fmt.p_palette =
-            malloc( sizeof(video_palette_t) );
-    else p_fmt->p_palette = p_region->fmt.p_palette = NULL;
-
-    p_region->picture.p_data_orig = NULL;
-
-    if( p_fmt->i_chroma == VLC_FOURCC('T','E','X','T') ) return p_region;
+    if( p_fmt->i_chroma == VLC_FOURCC('T','E','X','T') )
+        return p_region;
 
     vout_AllocatePicture( p_this, &p_region->picture, p_fmt->i_chroma,
                           p_fmt->i_width, p_fmt->i_height, p_fmt->i_aspect );
 
     if( !p_region->picture.i_planes )
     {
-        free( p_region );
         free( p_fmt->p_palette );
+        free( p_region );
         return NULL;
     }
 
@@ -266,39 +266,6 @@ subpicture_region_t *__spu_CreateRegion( vlc_object_t *p_this,
     return p_region;
 }
 
-/**
- * Make a subpicture region from an existing picture_t
- *
- * \param p_this vlc_object_t
- * \param p_fmt the format that this subpicture region should have
- * \param p_pic a pointer to the picture creating the region (not freed)
- */
-subpicture_region_t *__spu_MakeRegion( vlc_object_t *p_this,
-                                       video_format_t *p_fmt,
-                                       picture_t *p_pic )
-{
-    subpicture_region_t *p_region = malloc( sizeof(subpicture_region_t) );
-    (void)p_this;
-    if( !p_region ) return NULL;
-    memset( p_region, 0, sizeof(subpicture_region_t) );
-    p_region->i_alpha = 0xff;
-    p_region->p_next = 0;
-    p_region->p_cache = 0;
-    p_region->fmt = *p_fmt;
-    p_region->psz_text = 0;
-    p_region->p_style = NULL;
-
-    if( p_fmt->i_chroma == VLC_FOURCC('Y','U','V','P') )
-        p_fmt->p_palette = p_region->fmt.p_palette =
-            malloc( sizeof(video_palette_t) );
-    else p_fmt->p_palette = p_region->fmt.p_palette = NULL;
-
-    memcpy( &p_region->picture, p_pic, sizeof(picture_t) );
-    p_region->picture.pf_release = RegionPictureRelease;
-
-    return p_region;
-}
-
 /**
  * Destroy a subpicture region
  *
@@ -307,11 +274,14 @@ subpicture_region_t *__spu_MakeRegion( vlc_object_t *p_this,
  */
 void __spu_DestroyRegion( vlc_object_t *p_this, subpicture_region_t *p_region )
 {
-    if( !p_region ) return;
-    if( p_region->picture.pf_release )
-        p_region->picture.pf_release( &p_region->picture );
+    if( !p_region )
+        return;
+
+    picture_Release( &p_region->picture );
+
     free( p_region->fmt.p_palette );
-    if( p_region->p_cache ) __spu_DestroyRegion( p_this, p_region->p_cache );
+    if( p_region->p_cache )
+        __spu_DestroyRegion( p_this, p_region->p_cache );
 
     free( p_region->psz_text );
     free( p_region->psz_html );
@@ -392,8 +362,8 @@ subpicture_t *spu_CreateSubpicture( spu_t *p_spu )
     memset( p_subpic, 0, sizeof(subpicture_t) );
     p_subpic->i_status   = RESERVED_SUBPICTURE;
     p_subpic->b_absolute = true;
-    p_subpic->b_pausable = false;
     p_subpic->b_fade     = false;
+    p_subpic->b_subtitle = false;
     p_subpic->i_alpha    = 0xFF;
     p_subpic->p_region   = NULL;
     p_subpic->pf_render  = NULL;
@@ -402,7 +372,6 @@ subpicture_t *spu_CreateSubpicture( spu_t *p_spu )
     vlc_mutex_unlock( &p_spu->subpicture_lock );
 
     p_subpic->pf_create_region = __spu_CreateRegion;
-    p_subpic->pf_make_region = __spu_MakeRegion;
     p_subpic->pf_destroy_region = __spu_DestroyRegion;
 
     return p_subpic;
@@ -458,6 +427,15 @@ void spu_DestroySubpicture( spu_t *p_spu, subpicture_t *p_subpic )
  *****************************************************************************
  * This function renders all sub picture units in the list.
  *****************************************************************************/
+static void FilterRelease( filter_t *p_filter )
+{
+    if( p_filter->p_module )
+        module_Unneed( p_filter, p_filter->p_module );
+
+    vlc_object_detach( p_filter );
+    vlc_object_release( p_filter );
+}
+
 static void SpuRenderCreateBlend( spu_t *p_spu, vlc_fourcc_t i_chroma, int i_aspect )
 {
     filter_t *p_blend;
@@ -513,7 +491,7 @@ static void SpuRenderUpdateBlend( spu_t *p_spu, int i_out_width, int i_out_heigh
     if( !p_blend->p_module )
         p_blend->p_module = module_Need( p_blend, "video blending", 0, 0 );
 }
-static void SpuRenderCreateAndLoadText( spu_t *p_spu, int i_width, int i_height )
+static void SpuRenderCreateAndLoadText( spu_t *p_spu )
 {
     filter_t *p_text;
 
@@ -529,9 +507,9 @@ static void SpuRenderCreateAndLoadText( spu_t *p_spu, int i_width, int i_height
 
     es_format_Init( &p_text->fmt_out, VIDEO_ES, 0 );
     p_text->fmt_out.video.i_width =
-    p_text->fmt_out.video.i_visible_width = i_width;
+    p_text->fmt_out.video.i_visible_width = 32;
     p_text->fmt_out.video.i_height =
-    p_text->fmt_out.video.i_visible_height = i_height;
+    p_text->fmt_out.video.i_visible_height = 32;
 
     p_text->pf_sub_buffer_new = spu_new_buffer;
     p_text->pf_sub_buffer_del = spu_del_buffer;
@@ -579,7 +557,6 @@ static filter_t *CreateAndLoadScale( vlc_object_t *p_obj, vlc_fourcc_t i_chroma
 
     return p_scale;
 }
-
 static void SpuRenderCreateAndLoadScale( spu_t *p_spu )
 {
     /* FIXME: We'll also be using it for YUVA and RGBA blending ... */
@@ -651,13 +628,94 @@ exit:
     p_region->i_align |= SUBPICTURE_RENDERED;
 }
 
+/**
+ * A few scale functions helpers.
+ */
+typedef struct
+{
+    int w;
+    int h;
+} spu_scale_t;
+
+static spu_scale_t spu_scale_create( int w, int h )
+{
+    spu_scale_t s = { .w = w, .h = h };
+    if( s.w <= 0 )
+        s.w = SCALE_UNIT;
+    if( s.h <= 0 )
+        s.h = SCALE_UNIT;
+    return s;
+}
+static spu_scale_t spu_scale_createq( int wn, int wd, int hn, int hd )
+{
+    return spu_scale_create( wn * SCALE_UNIT / wd,
+                             hn * SCALE_UNIT / hd );
+}
+static int spu_scale_w( int v, const spu_scale_t s )
+{
+    return v * s.w / SCALE_UNIT;
+}
+static int spu_scale_h( int v, const spu_scale_t s )
+{
+    return v * s.h / SCALE_UNIT;
+}
+
+/**
+ * Place a region
+ */
+static void SpuRegionPlace( int *pi_x, int *pi_y,
+                            const video_format_t *p_fmt,
+                            const subpicture_t *p_subpic,
+                            const subpicture_region_t *p_region )
+{
+    int i_delta_x = p_region->i_x;
+    int i_delta_y = p_region->i_y;
+    int i_x, i_y;
+
+    if( p_region->i_align & SUBPICTURE_ALIGN_TOP )
+    {
+        i_y = i_delta_y;
+    }
+    else if( p_region->i_align & SUBPICTURE_ALIGN_BOTTOM )
+    {
+        i_y = p_fmt->i_height - p_region->fmt.i_height - i_delta_y;
+    }
+    else
+    {
+        i_y = p_fmt->i_height / 2 - p_region->fmt.i_height / 2;
+    }
+
+    if( p_region->i_align & SUBPICTURE_ALIGN_LEFT )
+    {
+        i_x = i_delta_x;
+    }
+    else if( p_region->i_align & SUBPICTURE_ALIGN_RIGHT )
+    {
+        i_x = p_fmt->i_width - p_region->fmt.i_width - i_delta_x;
+    }
+    else
+    {
+        i_x = p_fmt->i_width / 2 - p_region->fmt.i_width / 2;
+    }
+
+    if( p_subpic->b_absolute )
+    {
+        i_x = i_delta_x;
+        i_y = i_delta_y;
+    }
+    if( i_x < 0 )
+        i_x = 0;
+    if( i_y < 0 )
+        i_y = 0;
+
+    *pi_x = i_x;
+    *pi_y = i_y;
+}
+
 static void SpuRenderRegion( spu_t *p_spu,
-                             picture_t *p_pic_dst, picture_t *p_pic_src,
+                             picture_t *p_pic_dst,
                              subpicture_t *p_subpic, subpicture_region_t *p_region,
-                             const int i_scale_width_orig, const int i_scale_height_orig,
-                             const int pi_subpic_x[SCALE_SIZE],
-                             const int pi_scale_width[SCALE_SIZE],
-                             const int pi_scale_height[SCALE_SIZE],
+                             const spu_scale_t scale_size,
                              const video_format_t *p_fmt )
 {
     video_format_t fmt_original;
@@ -666,9 +724,6 @@ static void SpuRenderRegion( spu_t *p_spu,
     int i_fade_alpha;
     int i_x_offset;
     int i_y_offset;
-    int i_scale_idx;
-    int i_inv_scale_x;
-    int i_inv_scale_y;
     filter_t *p_scale;
 
     vlc_assert_locked( &p_spu->subpicture_lock );
@@ -677,7 +732,7 @@ static void SpuRenderRegion( spu_t *p_spu,
     b_rerender_text = false;
     if( p_region->fmt.i_chroma == VLC_FOURCC('T','E','X','T') )
     {
-        SpuRenderText( p_spu, &b_rerender_text, p_subpic, p_region, __MIN(i_scale_width_orig, i_scale_height_orig) );
+        SpuRenderText( p_spu, &b_rerender_text, p_subpic, p_region, SCALE_UNIT );
         b_restore_format = b_rerender_text;
 
         /* Check if the rendering has failed ... */
@@ -685,23 +740,6 @@ static void SpuRenderRegion( spu_t *p_spu,
             goto exit;
     }
 
-    if( p_region->i_align & SUBPICTURE_RENDERED )
-    {
-        /* We are using a region which come from rendered text */
-        i_scale_idx   = SCALE_TEXT;
-        i_inv_scale_x = i_scale_width_orig;
-        i_inv_scale_y = i_scale_height_orig;
-    }
-    else
-    {
-        i_scale_idx   = SCALE_DEFAULT;
-        i_inv_scale_x = 1000;
-        i_inv_scale_y = 1000;
-    }
-
-    i_x_offset = (p_region->i_x + pi_subpic_x[ i_scale_idx ]) * i_inv_scale_x / 1000;
-    i_y_offset = (p_region->i_y + p_subpic->i_y) * i_inv_scale_y / 1000;
-
     /* Force palette if requested
      * FIXME b_force_palette and b_force_crop are applied to all subpictures using palette
      * instead of only the right one (being the dvd spu).
@@ -726,12 +764,10 @@ static void SpuRenderRegion( spu_t *p_spu,
         p_scale = p_spu->p_scale;
 
     if( p_scale &&
-        ( ( pi_scale_width[i_scale_idx]  > 0 && pi_scale_width[i_scale_idx]  != 1000 ) ||
-          ( pi_scale_height[i_scale_idx] > 0 && pi_scale_height[i_scale_idx] != 1000 ) ||
-          ( b_force_palette ) ) )
+        ( scale_size.w != SCALE_UNIT || scale_size.h != SCALE_UNIT || b_force_palette ) )
     {
-        const unsigned i_dst_width  = p_region->fmt.i_width  * pi_scale_width[i_scale_idx] / 1000;
-        const unsigned i_dst_height = p_region->fmt.i_height * pi_scale_height[i_scale_idx] / 1000;
+        const unsigned i_dst_width  = spu_scale_w( p_region->fmt.i_width, scale_size );
+        const unsigned i_dst_height = spu_scale_h( p_region->fmt.i_height, scale_size );
 
         /* Destroy if cache is unusable */
         if( p_region->p_cache )
@@ -770,13 +806,13 @@ static void SpuRenderRegion( spu_t *p_spu,
             p_scale->fmt_out.video.i_height = i_dst_height;
 
             p_scale->fmt_out.video.i_visible_width =
-                p_region->fmt.i_visible_width * pi_scale_width[ i_scale_idx ] / 1000;
+                spu_scale_w( p_region->fmt.i_visible_width, scale_size );
             p_scale->fmt_out.video.i_visible_height =
-                p_region->fmt.i_visible_height * pi_scale_height[ i_scale_idx ] / 1000;
+                spu_scale_h( p_region->fmt.i_visible_height, scale_size );
 
             p_region->p_cache->fmt = p_scale->fmt_out.video;
-            p_region->p_cache->i_x = p_region->i_x * pi_scale_width[ i_scale_idx ] / 1000;
-            p_region->p_cache->i_y = p_region->i_y * pi_scale_height[ i_scale_idx ] / 1000;
+            p_region->p_cache->i_x = spu_scale_w( p_region->i_x, scale_size );
+            p_region->p_cache->i_y = spu_scale_h( p_region->i_y, scale_size );
             p_region->p_cache->i_align = p_region->i_align;
             p_region->p_cache->i_alpha = p_region->i_alpha;
 
@@ -785,11 +821,18 @@ static void SpuRenderRegion( spu_t *p_spu,
                 p_pic = p_scale->pf_video_filter( p_scale, &p_region->p_cache->picture );
             else
                 msg_Err( p_spu, "scaling failed (module not loaded)" );
+
             if( p_pic )
             {
                 p_region->p_cache->picture = *p_pic;
                 free( p_pic );
             }
+            else
+            {
+                p_subpic->pf_destroy_region( VLC_OBJECT(p_spu),
+                                             p_region->p_cache );
+                p_region->p_cache = NULL;
+            }
         }
 
         /* And use the scaled picture */
@@ -800,46 +843,14 @@ static void SpuRenderRegion( spu_t *p_spu,
         }
     }
 
-    if( p_region->i_align & SUBPICTURE_ALIGN_BOTTOM )
-    {
-        i_y_offset = p_fmt->i_height - p_region->fmt.i_height -
-            (p_subpic->i_y + p_region->i_y) * i_inv_scale_y / 1000;
-    }
-    else if ( !(p_region->i_align & SUBPICTURE_ALIGN_TOP) )
-    {
-        i_y_offset = p_fmt->i_height / 2 - p_region->fmt.i_height / 2;
-    }
-
-    if( p_region->i_align & SUBPICTURE_ALIGN_RIGHT )
-    {
-        i_x_offset = p_fmt->i_width - p_region->fmt.i_width -
-            (pi_subpic_x[ i_scale_idx ] + p_region->i_x)
-            * i_inv_scale_x / 1000;
-    }
-    else if ( !(p_region->i_align & SUBPICTURE_ALIGN_LEFT) )
-    {
-        i_x_offset = p_fmt->i_width / 2 - p_region->fmt.i_width / 2;
-    }
-
-    if( p_subpic->b_absolute )
-    {
-        i_x_offset = (p_region->i_x +
-            pi_subpic_x[ i_scale_idx ] *
-                             pi_scale_width[ i_scale_idx ] / 1000)
-            * i_inv_scale_x / 1000;
-        i_y_offset = (p_region->i_y +
-            p_subpic->i_y * pi_scale_height[ i_scale_idx ] / 1000)
-            * i_inv_scale_y / 1000;
-
-    }
-
-    i_x_offset = __MAX( i_x_offset, 0 );
-    i_y_offset = __MAX( i_y_offset, 0 );
+    /* */
+    SpuRegionPlace( &i_x_offset, &i_y_offset,
+                    p_fmt, p_subpic, p_region );
 
     if( p_spu->i_margin != 0 && !b_force_crop )
     {
         int i_diff = 0;
-        int i_low = (i_y_offset - p_spu->i_margin) * i_inv_scale_y / 1000;
+        int i_low = i_y_offset - p_spu->i_margin;
         int i_high = i_low + p_region->fmt.i_height;
 
         /* crop extra margin to keep within bounds */
@@ -847,21 +858,17 @@ static void SpuRenderRegion( spu_t *p_spu,
             i_diff = i_low;
         if( i_high > (int)p_fmt->i_height )
             i_diff = i_high - p_fmt->i_height;
-        i_y_offset -= ( p_spu->i_margin * i_inv_scale_y / 1000 + i_diff );
+        i_y_offset -= p_spu->i_margin + i_diff;
     }
 
     /* Force cropping if requested */
     if( b_force_crop )
     {
         video_format_t *p_fmt = &p_region->fmt;
-        int i_crop_x = p_spu->i_crop_x * pi_scale_width[ i_scale_idx ] / 1000
-                            * i_inv_scale_x / 1000;
-        int i_crop_y = p_spu->i_crop_y * pi_scale_height[ i_scale_idx ] / 1000
-                            * i_inv_scale_y / 1000;
-        int i_crop_width = p_spu->i_crop_width * pi_scale_width[ i_scale_idx ] / 1000
-                            * i_inv_scale_x / 1000;
-        int i_crop_height = p_spu->i_crop_height * pi_scale_height[ i_scale_idx ] / 1000
-                            * i_inv_scale_y / 1000;
+        int i_crop_x = spu_scale_w( p_spu->i_crop_x, scale_size );
+        int i_crop_y = spu_scale_h( p_spu->i_crop_y, scale_size );
+        int i_crop_width = spu_scale_w( p_spu->i_crop_width, scale_size );
+        int i_crop_height= spu_scale_h( p_spu->i_crop_height,scale_size );
 
         /* Find the intersection */
         if( i_crop_x + i_crop_width <= i_x_offset ||
@@ -916,7 +923,7 @@ static void SpuRenderRegion( spu_t *p_spu,
     if( p_spu->p_blend->p_module )
     {
         p_spu->p_blend->pf_video_blend( p_spu->p_blend, p_pic_dst,
-            p_pic_src, &p_region->picture, i_x_offset, i_y_offset,
+            &p_region->picture, i_x_offset, i_y_offset,
             i_fade_alpha * p_subpic->i_alpha * p_region->i_alpha / 65025 );
     }
     else
@@ -942,69 +949,41 @@ exit:
         p_region->fmt = fmt_original;
 }
 
-void spu_RenderSubpictures( spu_t *p_spu, video_format_t *p_fmt,
-                            picture_t *p_pic_dst, picture_t *p_pic_src,
-                            subpicture_t *p_subpic,
-                            int i_scale_width_orig, int i_scale_height_orig )
+void spu_RenderSubpictures( spu_t *p_spu,
+                            picture_t *p_pic_dst, video_format_t *p_fmt_dst,
+                            subpicture_t *p_subpic_list,
+                            const video_format_t *p_fmt_src )
 {
+    video_format_t *p_fmt = p_fmt_dst;
+    const mtime_t i_current_date = mdate();
     int i_source_video_width;
     int i_source_video_height;
-    subpicture_t *p_subpic_v;
+    subpicture_t *p_subpic;
 
     /* Get lock */
     vlc_mutex_lock( &p_spu->subpicture_lock );
 
-    for( p_subpic_v = p_subpic;
-            p_subpic_v != NULL && p_subpic_v->i_status != FREE_SUBPICTURE;
-            p_subpic_v = p_subpic_v->p_next )
+    /* Be sure we have at least 1 picture to process */
+    if( !p_subpic_list || p_subpic_list->i_status == FREE_SUBPICTURE )
     {
-        if( p_subpic_v->pf_pre_render )
-        {
-            p_subpic_v->pf_pre_render( p_fmt, p_spu, p_subpic_v, mdate() );
-        }
+        vlc_mutex_unlock( &p_spu->subpicture_lock );
+        return;
     }
 
-    if( i_scale_width_orig <= 0 )
-        i_scale_width_orig = 1000;
-    if( i_scale_height_orig <= 0 )
-        i_scale_height_orig = 1000;
-
-    i_source_video_width  = p_fmt->i_width  * 1000 / i_scale_width_orig;
-    i_source_video_height = p_fmt->i_height * 1000 / i_scale_height_orig;
+    i_source_video_width  = p_fmt_src->i_width;
+    i_source_video_height = p_fmt_src->i_height;
 
-    /* Check i_status again to make sure spudec hasn't destroyed the subpic */
-    for( ; ( p_subpic != NULL ) && ( p_subpic->i_status != FREE_SUBPICTURE ); p_subpic = p_subpic->p_next )
+    /* */
+    for( p_subpic = p_subpic_list;
+            p_subpic != NULL && p_subpic->i_status != FREE_SUBPICTURE; /* Check again status (as we where unlocked) */
+                p_subpic = p_subpic->p_next )
     {
-        subpicture_region_t *p_region;
-        int pi_scale_width[ SCALE_SIZE ];
-        int pi_scale_height[ SCALE_SIZE ];
-        int pi_subpic_x[ SCALE_SIZE ];
-        int k;
-
-        /* If the source video and subtitles stream agree on the size of
-         * the video then disregard all further references to the subtitle
-         * stream.
-         */
-        if( ( i_source_video_height == p_subpic->i_original_picture_height ) &&
-            ( i_source_video_width  == p_subpic->i_original_picture_width ) )
-        {
-            /* FIXME this looks wrong */
-            p_subpic->i_original_picture_height = 0;
-            p_subpic->i_original_picture_width = 0;
-        }
-
-        for( k = 0; k < SCALE_SIZE ; k++ )
-            pi_subpic_x[ k ] = p_subpic->i_x;
+        /* */
+        if( p_subpic->pf_pre_render )
+            p_subpic->pf_pre_render( p_fmt, p_spu, p_subpic );
 
         if( p_subpic->pf_update_regions )
         {
-            while( p_subpic->p_region )
-            {
-                subpicture_region_t *p_region = p_subpic->p_region;
-                p_subpic->p_region = p_region->p_next;
-                spu_DestroyRegion( p_spu, p_region );
-            }
-
             /* TODO do not reverse the scaling that was done before calling
              * spu_RenderSubpictures, just pass it along (or do it inside
              * spu_RenderSubpictures) */
@@ -1014,113 +993,60 @@ void spu_RenderSubpictures( spu_t *p_spu, video_format_t *p_fmt,
             fmt_org.i_height =
             fmt_org.i_visible_height = i_source_video_height;
 
-            p_subpic->p_region = p_subpic->pf_update_regions( &fmt_org, p_spu, p_subpic, mdate() );
+            p_subpic->pf_update_regions( &fmt_org, p_spu, p_subpic, i_current_date );
         }
+    }
 
-        /* */
-        p_region = p_subpic->p_region;
-        if( !p_region )
-            continue;
-
-        /* Create the blending module */
-        if( !p_spu->p_blend )
-            SpuRenderCreateBlend( p_spu, p_fmt->i_chroma, p_fmt->i_aspect );
+    /* Create the blending module */
+    if( !p_spu->p_blend )
+        SpuRenderCreateBlend( p_spu, p_fmt->i_chroma, p_fmt->i_aspect );
 
-        /* Load the text rendering module; it is possible there is a
-         * text region somewhere in the subpicture other than the first
-         * element in the region list, so just load it anyway as we'll
-         * probably want it sooner or later. */
-        if( !p_spu->p_text )
-            SpuRenderCreateAndLoadText( p_spu, p_fmt->i_width, p_fmt->i_height );
+    /* */
+    for( p_subpic = p_subpic_list; ; p_subpic = p_subpic->p_next )
+    {
+        subpicture_region_t *p_region;
 
-        if( p_spu->p_text )
-        {
-            subpicture_region_t *p_text_region = p_subpic->p_region;
-
-            /* Only overwrite the size fields if the region is still in
-             * pre-rendered TEXT format. We have to traverse the subregion
-             * list because if more than one subregion is present, the text
-             * region isn't guarentteed to be the first in the list, and
-             * only text regions use this flag. All of this effort assists
-             * with the rescaling of text that has been rendered at native
-             * resolution, rather than video resolution.
-             */
-            while( p_text_region &&
-                   p_text_region->fmt.i_chroma != VLC_FOURCC('T','E','X','T') )
-            {
-                p_text_region = p_text_region->p_next;
-            }
+        if( !p_subpic || p_subpic->i_status == FREE_SUBPICTURE )
+            break;
 
-            if( p_text_region &&
-                ( ( p_text_region->i_align & SUBPICTURE_RENDERED ) == 0 ) )
-            {
-                if( p_subpic->i_original_picture_height > 0 &&
-                    p_subpic->i_original_picture_width  > 0 )
-                {
-                    p_spu->p_text->fmt_out.video.i_width =
-                    p_spu->p_text->fmt_out.video.i_visible_width =
-                        p_subpic->i_original_picture_width;
-                    p_spu->p_text->fmt_out.video.i_height =
-                    p_spu->p_text->fmt_out.video.i_visible_height =
-                        p_subpic->i_original_picture_height;
-                }
-                else
-                {
-                    p_spu->p_text->fmt_out.video.i_width =
-                    p_spu->p_text->fmt_out.video.i_visible_width =
-                        p_fmt->i_width;
-                    p_spu->p_text->fmt_out.video.i_height =
-                    p_spu->p_text->fmt_out.video.i_visible_height =
-                        p_fmt->i_height;
-                }
-            }
+        if( !p_subpic->p_region )
+            continue;
 
-            /* XXX for text:
-             *  scale[] allows to pass from rendered size (by text module) to video output size */
-            pi_scale_width[SCALE_TEXT] = p_fmt->i_width * 1000 /
-                                          p_spu->p_text->fmt_out.video.i_width;
-            pi_scale_height[SCALE_TEXT]= p_fmt->i_height * 1000 /
-                                          p_spu->p_text->fmt_out.video.i_height;
-        }
-        else
+        /* FIXME when possible use a better rendering size than source size
+         * (max of display size and source size for example) FIXME */
+        int i_render_width  = p_subpic->i_original_picture_width;
+        int i_render_height = p_subpic->i_original_picture_height;
+        if( !i_render_width || !i_render_height )
         {
-            /* Just set a value to avoid using invalid memory while looping over the array */
-            pi_scale_width[SCALE_TEXT] =
-            pi_scale_height[SCALE_TEXT]= 1000;
-        }
-
-        /* XXX for default:
-         *  scale[] allows to pass from native (either video or original) size to output size */
+            if( i_render_width != 0 || i_render_height != 0 )
+                msg_Err( p_spu, "unsupported original picture size %dx%d",
+                         i_render_width, i_render_height );
 
-        if( p_subpic->i_original_picture_height > 0 &&
-            p_subpic->i_original_picture_width  > 0 )
-        {
-            pi_scale_width[SCALE_DEFAULT]  = p_fmt->i_width  * 1000 / p_subpic->i_original_picture_width;
-            pi_scale_height[SCALE_DEFAULT] = p_fmt->i_height * 1000 / p_subpic->i_original_picture_height;
-        }
-        else
-        {
-            pi_scale_width[ SCALE_DEFAULT ]  = i_scale_width_orig;
-            pi_scale_height[ SCALE_DEFAULT ] = i_scale_height_orig;
+            i_render_width = i_source_video_width;
+            i_render_height = i_source_video_height;
         }
 
-        for( k = 0; k < SCALE_SIZE ; k++ )
+        if( p_spu->p_text )
         {
-            /* Case of both width and height being specified has been dealt
-             * with above by instead rendering to an output pane of the
-             * explicit dimensions specified - we don't need to scale it.
-             */
-            if( p_subpic->i_original_picture_height > 0 &&
-                p_subpic->i_original_picture_width <= 0 )
-            {
-                pi_scale_height[ k ] = pi_scale_height[ k ] * i_source_video_height /
-                                 p_subpic->i_original_picture_height;
-                pi_scale_width[ k ]  = pi_scale_width[ k ]  * i_source_video_height /
-                                 p_subpic->i_original_picture_height;
-            }
+            p_spu->p_text->fmt_out.video.i_width          =
+            p_spu->p_text->fmt_out.video.i_visible_width  = i_render_width;
+
+            p_spu->p_text->fmt_out.video.i_height         =
+            p_spu->p_text->fmt_out.video.i_visible_height = i_render_height;
         }
 
-        /* Set default subpicture aspect ratio */
+        /* Compute scaling from picture to source size */
+        spu_scale_t scale = spu_scale_createq( i_source_video_width,  i_render_width,
+                                               i_source_video_height, i_render_height );
+
+        /* Update scaling from source size to display size(p_fmt) */
+        scale.w = scale.w * p_fmt->i_width  / i_source_video_width;
+        scale.h = scale.h * p_fmt->i_height / i_source_video_height;
+
+        /* Set default subpicture aspect ratio
+         * FIXME if we only handle 1 aspect ratio per picture, why is it set per
+         * region ? */
+        p_region = p_subpic->p_region;
         if( !p_region->fmt.i_sar_num || !p_region->fmt.i_sar_den )
         {
             if( p_region->fmt.i_aspect != 0 )
@@ -1136,41 +1062,26 @@ void spu_RenderSubpictures( spu_t *p_spu, video_format_t *p_fmt,
         }
 
         /* Take care of the aspect ratio */
-        if( ( p_region->fmt.i_sar_num * p_fmt->i_sar_den ) !=
-            ( p_region->fmt.i_sar_den * p_fmt->i_sar_num ) )
+        if( p_region->fmt.i_sar_num * p_fmt->i_sar_den !=
+            p_region->fmt.i_sar_den * p_fmt->i_sar_num )
         {
-            for( k = 0; k < SCALE_SIZE; k++ )
-            {
-                pi_scale_width[k] = pi_scale_width[ k ] *
-                    (int64_t)p_region->fmt.i_sar_num * p_fmt->i_sar_den /
-                    p_region->fmt.i_sar_den / p_fmt->i_sar_num;
-
-                pi_subpic_x[k] = p_subpic->i_x * pi_scale_width[ k ] / 1000;
-            }
+            /* FIXME FIXME what about region->i_x/i_y ? */
+            scale.w = scale.w *
+                (int64_t)p_region->fmt.i_sar_num * p_fmt->i_sar_den /
+                p_region->fmt.i_sar_den / p_fmt->i_sar_num;
         }
 
-        /* Load the scaling module when needed */
-        if( !p_spu->p_scale )
+        /* Render all regions */
+        for( p_region = p_subpic->p_region; p_region != NULL; p_region = p_region->p_next )
         {
-            bool b_scale_used = false;
-
-            for( k = 0; k < SCALE_SIZE; k++ )
-            {
-                const int i_scale_w = pi_scale_width[k];
-                const int i_scale_h = pi_scale_height[k];
-                if( ( i_scale_w > 0 && i_scale_w != 1000 ) || ( i_scale_h > 0 && i_scale_h != 1000 ) )
-                    b_scale_used = true;
-            }
+            /* Check scale validity */
+            if( scale.w <= 0 || scale.h <= 0 )
+                continue;
 
-            if( b_scale_used )
-                SpuRenderCreateAndLoadScale( p_spu );
+            /* */
+            SpuRenderRegion( p_spu, p_pic_dst, p_subpic, p_region,
+                             scale, p_fmt );
         }
-
-        for( ; p_region != NULL; p_region = p_region->p_next )
-            SpuRenderRegion( p_spu, p_pic_dst, p_pic_src,
-                             p_subpic, p_region, i_scale_width_orig, i_scale_height_orig,
-                             pi_subpic_x, pi_scale_width, pi_scale_height,
-                             p_fmt );
     }
 
     vlc_mutex_unlock( &p_spu->subpicture_lock );
@@ -1188,12 +1099,10 @@ void spu_RenderSubpictures( spu_t *p_spu, video_format_t *p_fmt,
  * more difficult to guess if a subpicture has to be rendered or not.
  *****************************************************************************/
 subpicture_t *spu_SortSubpictures( spu_t *p_spu, mtime_t display_date,
-                                   bool b_paused )
+                                   bool b_paused, bool b_subtitle_only )
 {
-    int i_index, i_channel;
+    int i_channel;
     subpicture_t *p_subpic = NULL;
-    subpicture_t *p_ephemer;
-    mtime_t      ephemer_date;
 
     /* Run subpicture filters */
     filter_chain_SubFilter( p_spu->p_chain, display_date );
@@ -1202,32 +1111,33 @@ subpicture_t *spu_SortSubpictures( spu_t *p_spu, mtime_t display_date,
      * ends with NULL since p_subpic was initialized to NULL. */
     for( i_channel = 0; i_channel < p_spu->i_channel; i_channel++ )
     {
-        p_ephemer = 0;
-        ephemer_date = 0;
+        subpicture_t *p_ephemer = NULL;
+        mtime_t      ephemer_date = 0;
+        int i_index;
 
         for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++ )
         {
-            if( p_spu->p_subpicture[i_index].i_channel != i_channel ||
-                p_spu->p_subpicture[i_index].i_status != READY_SUBPICTURE )
+            subpicture_t *p_current = &p_spu->p_subpicture[i_index];
+
+            if( p_current->i_channel != i_channel ||
+                p_current->i_status != READY_SUBPICTURE ||
+                ( b_subtitle_only && !p_current->b_subtitle ) )
             {
                 continue;
             }
             if( display_date &&
-                display_date < p_spu->p_subpicture[i_index].i_start )
+                display_date < p_current->i_start )
             {
                 /* Too early, come back next monday */
                 continue;
             }
 
-            if( p_spu->p_subpicture[i_index].i_start > ephemer_date )
-                ephemer_date = p_spu->p_subpicture[i_index].i_start;
+            if( p_current->i_start > ephemer_date )
+                ephemer_date = p_current->i_start;
 
-            if( display_date > p_spu->p_subpicture[i_index].i_stop &&
-                ( !p_spu->p_subpicture[i_index].b_ephemer ||
-                  p_spu->p_subpicture[i_index].i_stop >
-                  p_spu->p_subpicture[i_index].i_start ) &&
-                !( p_spu->p_subpicture[i_index].b_pausable &&
-                   b_paused ) )
+            if( display_date > p_current->i_stop &&
+                ( !p_current->b_ephemer || p_current->i_stop > p_current->i_start ) &&
+                !( p_current->b_subtitle && b_paused ) ) /* XXX Assume that subtitle are pausable */
             {
                 /* Too late, destroy the subpic */
                 spu_DestroySubpicture( p_spu, &p_spu->p_subpicture[i_index] );
@@ -1235,16 +1145,16 @@ subpicture_t *spu_SortSubpictures( spu_t *p_spu, mtime_t display_date,
             }
 
             /* If this is an ephemer subpic, add it to our list */
-            if( p_spu->p_subpicture[i_index].b_ephemer )
+            if( p_current->b_ephemer )
             {
-                p_spu->p_subpicture[i_index].p_next = p_ephemer;
-                p_ephemer = &p_spu->p_subpicture[i_index];
+                p_current->p_next = p_ephemer;
+                p_ephemer = p_current;
 
                 continue;
             }
 
-            p_spu->p_subpicture[i_index].p_next = p_subpic;
-            p_subpic = &p_spu->p_subpicture[i_index];
+            p_current->p_next = p_subpic;
+            p_subpic = p_current;
         }
 
         /* If we found ephemer subpictures, check if they have to be
@@ -1324,7 +1234,10 @@ static int spu_vaControlDefault( spu_t *p_spu, int i_query, va_list args )
     {
     case SPU_CHANNEL_REGISTER:
         pi = (int *)va_arg( args, int * );
-        if( pi ) *pi = p_spu->i_channel++;
+        vlc_mutex_lock( &p_spu->subpicture_lock );
+        if( pi )
+            *pi = p_spu->i_channel++;
+        vlc_mutex_unlock( &p_spu->subpicture_lock );
         break;
 
     case SPU_CHANNEL_CLEAR:
@@ -1420,16 +1333,17 @@ static void sub_del_buffer( filter_t *p_filter, subpicture_t *p_subpic )
 
 static subpicture_t *spu_new_buffer( filter_t *p_filter )
 {
-    (void)p_filter;
-    subpicture_t *p_subpic = (subpicture_t *)malloc(sizeof(subpicture_t));
-    if( !p_subpic ) return NULL;
-    memset( p_subpic, 0, sizeof(subpicture_t) );
+    subpicture_t *p_subpic = calloc( 1, sizeof(subpicture_t) );
+    if( !p_subpic )
+        return NULL;
+
     p_subpic->b_absolute = true;
+    p_subpic->i_alpha    = 0xFF;
 
     p_subpic->pf_create_region = __spu_CreateRegion;
-    p_subpic->pf_make_region = __spu_MakeRegion;
     p_subpic->pf_destroy_region = __spu_DestroyRegion;
 
+    VLC_UNUSED(p_filter);
     return p_subpic;
 }
 
@@ -1447,41 +1361,27 @@ static void spu_del_buffer( filter_t *p_filter, subpicture_t *p_subpic )
 
 static picture_t *spu_new_video_buffer( filter_t *p_filter )
 {
-    picture_t *p_picture = malloc( sizeof(picture_t) );
-    if( !p_picture ) return NULL;
-    if( vout_AllocatePicture( p_filter, p_picture,
-                              p_filter->fmt_out.video.i_chroma,
-                              p_filter->fmt_out.video.i_width,
-                              p_filter->fmt_out.video.i_height,
-                              p_filter->fmt_out.video.i_aspect )
-        != VLC_SUCCESS )
-    {
-        free( p_picture );
-        return NULL;
-    }
+    const video_format_t *p_fmt = &p_filter->fmt_out.video;
 
-    p_picture->pf_release = RegionPictureRelease;
-
-    return p_picture;
+    VLC_UNUSED(p_filter);
+    return picture_New( p_fmt->i_chroma,
+                        p_fmt->i_width, p_fmt->i_height, p_fmt->i_aspect );
 }
 
-static void spu_del_video_buffer( filter_t *p_filter, picture_t *p_pic )
+static void spu_del_video_buffer( filter_t *p_filter, picture_t *p_picture )
 {
-    (void)p_filter;
-    if( p_pic )
-    {
-        free( p_pic->p_data_orig );
-        free( p_pic );
-    }
+    VLC_UNUSED(p_filter);
+    picture_Release( p_picture );
 }
 
 static int SubFilterCallback( vlc_object_t *p_object, char const *psz_var,
                          vlc_value_t oldval, vlc_value_t newval, void *p_data )
 {
+    spu_t *p_spu = p_data;
+
     VLC_UNUSED(p_object); VLC_UNUSED(oldval);
     VLC_UNUSED(newval); VLC_UNUSED(psz_var);
 
-    spu_t *p_spu = (spu_t *)p_data;
     vlc_mutex_lock( &p_spu->subpicture_lock );
     filter_chain_Reset( p_spu->p_chain, NULL, NULL );
     spu_ParseChain( p_spu );
@@ -1489,16 +1389,17 @@ static int SubFilterCallback( vlc_object_t *p_object, char const *psz_var,
     return VLC_SUCCESS;
 }
 
-static int sub_filter_allocation_init( filter_t *p_filter, void *p_data )
+static int SubFilterAllocationInit( filter_t *p_filter, void *p_data )
 {
-    spu_t *p_spu = (spu_t *)p_data;
+    spu_t *p_spu = p_data;
+
+    filter_owner_sys_t *p_sys = malloc( sizeof(filter_owner_sys_t) );
+    if( !p_sys )
+        return VLC_EGENERIC;
 
     p_filter->pf_sub_buffer_new = sub_new_buffer;
     p_filter->pf_sub_buffer_del = sub_del_buffer;
 
-    filter_owner_sys_t *p_sys = malloc( sizeof(filter_owner_sys_t) );
-    if( !p_sys ) return VLC_EGENERIC;
-
     p_filter->p_owner = p_sys;
     spu_Control( p_spu, SPU_CHANNEL_REGISTER, &p_sys->i_channel );
     p_sys->p_spu = p_spu;
@@ -1506,9 +1407,11 @@ static int sub_filter_allocation_init( filter_t *p_filter, void *p_data )
     return VLC_SUCCESS;
 }
 
-static void sub_filter_allocation_clear( filter_t *p_filter )
+static void SubFilterAllocationClean( filter_t *p_filter )
 {
     filter_owner_sys_t *p_sys = p_filter->p_owner;
+
     SpuClearChannel( p_sys->p_spu, p_sys->i_channel, true );
     free( p_filter->p_owner );
 }
+