Change the visible heigh/width only if they weren't set in the source text...

Change the visible heigh/width only if they weren't set in the source text subpicture. Else use the original values. Could someone with good knowledge of the freetype module (and maybe other text render modules ... if we have any) confirm that this change is ok?

modules/misc/freetype.c

@@ -408,6 +408,10 @@ static int Render( filter_t *p_filter, subpicture_region_t *p_region,
     fmt.i_aspect = 0;
     fmt.i_width = fmt.i_visible_width = i_width + 4;
     fmt.i_height = fmt.i_visible_height = i_height + 4;
+    if( p_region->fmt.i_visible_width > 0 )
+        fmt.i_visible_width = p_region->fmt.i_visible_width;
+    if( p_region->fmt.i_visible_height > 0 )
+        fmt.i_visible_height = p_region->fmt.i_visible_height;
     fmt.i_x_offset = fmt.i_y_offset = 0;
     p_region_tmp = spu_CreateRegion( p_filter, &fmt );
     if( !p_region_tmp )
@@ -679,6 +683,10 @@ static int RenderYUVA( filter_t *p_filter, subpicture_region_t *p_region,
     fmt.i_aspect = 0;
     fmt.i_width = fmt.i_visible_width = i_width + 6;
     fmt.i_height = fmt.i_visible_height = i_height + 6;
+    if( p_region->fmt.i_visible_width > 0 )
+        fmt.i_visible_width = p_region->fmt.i_visible_width;
+    if( p_region->fmt.i_visible_height > 0 )
+        fmt.i_visible_height = p_region->fmt.i_visible_height;
     fmt.i_x_offset = fmt.i_y_offset = 0;
     p_region_tmp = spu_CreateRegion( p_filter, &fmt );
     if( !p_region_tmp )