Commit 9e852e7b authored by Laurent Aimar's avatar Laurent Aimar

Support for overlapped subtitle part 2.

Do not move an already rendered subtitle.
parent b98c2415
......@@ -953,8 +953,8 @@ static void SpuRenderRegion( spu_t *p_spu,
}
/* Fix the position for the current scale_size */
i_x_offset = spu_scale_w( p_area->i_x, scale_size );
i_y_offset = spu_scale_h( p_area->i_y, scale_size );
i_x_offset = spu_scale_w( p_area->i_x, p_area->scale );
i_y_offset = spu_scale_h( p_area->i_y, p_area->scale );
if( b_force_palette )
{
......@@ -1145,6 +1145,8 @@ void spu_RenderSubpictures( spu_t *p_spu,
subpicture_t *p_subpic;
int i_pass;
/* Get lock */
vlc_mutex_lock( &p_spu->subpicture_lock );
......@@ -1194,13 +1196,29 @@ void spu_RenderSubpictures( spu_t *p_spu,
if( !p_spu->p_blend )
SpuRenderCreateBlend( p_spu, p_fmt_dst->i_chroma, p_fmt_dst->i_aspect );
/* */
for( p_subpic = p_subpic_list; ; p_subpic = p_subpic->p_next )
/* Process all subpictures and regions
* We do two pass:
* 1. all absolute pictures
* 2. not yet absolute subtitle pictures
* The order is important to correctly move the non absolute picture.
*/
for( i_pass = 0, p_subpic = p_subpic_list; ; p_subpic = p_subpic->p_next )
{
subpicture_region_t *p_region;
if( !p_subpic || p_subpic->i_status == FREE_SUBPICTURE )
{
i_pass++;
if( i_pass >= 2 )
break;
p_subpic = p_subpic_list;
assert( p_subpic && p_subpic->i_status != FREE_SUBPICTURE );
}
if( ( i_pass == 0 && !p_subpic->b_absolute ) ||
( i_pass == 1 && p_subpic->b_absolute ) )
continue;
if( !p_subpic->p_region )
continue;
......@@ -1264,10 +1282,14 @@ void spu_RenderSubpictures( spu_t *p_spu,
p_region->fmt.i_sar_den / p_fmt_dst->i_sar_num;
}
/* Render all regions */
/* Render all regions
* We always transform non absolute subtitle into absolute one on the
* first rendering to allow good subtitle overlap support.
*/
for( p_region = p_subpic->p_region; p_region != NULL; p_region = p_region->p_next )
{
spu_area_t area;
/* Check scale validity */
if( scale.w <= 0 || scale.h <= 0 )
continue;
......@@ -1279,10 +1301,18 @@ void spu_RenderSubpictures( spu_t *p_spu,
if( p_subpic->b_subtitle )
{
area = spu_area_unscaled( area, scale );
if( !p_subpic->b_absolute && area.i_width > 0 && area.i_height > 0 )
{
p_region->i_x = area.i_x;
p_region->i_y = area.i_y;
}
if( p_subtitle_area )
p_subtitle_area[i_subtitle_area++] = area;
}
}
if( p_subpic->b_subtitle )
p_subpic->b_absolute = true;
}
/* */
......
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