static FT_Face LoadFace( filter_t *p_filter, const char *psz_fontfile, int i_idx,
const text_style_t *p_style )
{
filter_sys_t *p_sys = p_filter->p_sys;
char *psz_key = NULL;
int i_font_size = ConvertToLiveSize( p_filter, p_style );
int i_font_width = p_style->i_style_flags & STYLE_HALFWIDTH ?
i_font_size / 2 : i_font_size;
if( asprintf( &psz_key, "%s - %d - %d - %d",
psz_fontfile, i_idx,
i_font_size, i_font_width ) < 0 )
return NULL;
FT_Face p_face = vlc_dictionary_value_for_key( &p_sys->face_map, psz_key );
if( p_face != kVLCDictionaryNotFound )
goto done;
if( psz_fontfile[0] == ':' && psz_fontfile[1] == '/' )
{
int i_attach = atoi( psz_fontfile + 2 );
if( i_attach < 0 || i_attach >= p_sys->i_font_attachments )
{
msg_Err( p_filter, "LoadFace: Invalid font attachment index" );
p_face = NULL;
}
else
{
input_attachment_t *p_attach = p_sys->pp_font_attachments[ i_attach ];
if( FT_New_Memory_Face( p_sys->p_library, p_attach->p_data,
p_attach->i_data, i_idx, &p_face ) )
p_face = NULL;
}
}
else
if( FT_New_Face( p_sys->p_library, psz_fontfile, i_idx, &p_face ) )
{
msg_Err( p_filter, "LoadFace: Error creating face for %s", psz_key );
p_face = NULL;
}
if( !p_face )
goto done;
if( FT_Select_Charmap( p_face, ft_encoding_unicode ) )
{
/* We've loaded a font face which is unhelpful for actually
* rendering text - fallback to the default one.
*/
msg_Err( p_filter, "LoadFace: Error selecting charmap for %s", psz_key );
FT_Done_Face( p_face );
p_face = NULL;
goto done;
}
if( FT_Set_Pixel_Sizes( p_face, i_font_width, i_font_size ) )
{
msg_Err( p_filter,
"LoadFace: Failed to set font size for %s", psz_key );
FT_Done_Face( p_face );
p_face = NULL;
goto done;
}
vlc_dictionary_insert( &p_sys->face_map, psz_key, p_face );
done:
free( psz_key );
return p_face;
}
static FT_Face LoadFace( filter_t *p_filter, const char *psz_fontfile, int i_idx,
const text_style_t *p_style )
{
filter_sys_t *p_sys = p_filter->p_sys;
char *psz_key = NULL;
int i_font_size = ConvertToLiveSize( p_filter, p_style );
int i_font_width = p_style->i_style_flags & STYLE_HALFWIDTH ?
i_font_size / 2 : i_font_size;
if( asprintf( &psz_key, "%s - %d - %d - %d",
psz_fontfile, i_idx,
i_font_size, i_font_width ) < 0 )
return NULL;
FT_Face p_face = vlc_dictionary_value_for_key( &p_sys->face_map, psz_key );
if( p_face != NULL )
goto done;
if( psz_fontfile[0] == ':' && psz_fontfile[1] == '/' )
{
int i_attach = atoi( psz_fontfile + 2 );
if( i_attach < 0 || i_attach >= p_sys->i_font_attachments )
msg_Err( p_filter, "LoadFace: Invalid font attachment index" );
else
{
input_attachment_t *p_attach = p_sys->pp_font_attachments[ i_attach ];
if( FT_New_Memory_Face( p_sys->p_library, p_attach->p_data,
p_attach->i_data, i_idx, &p_face ) )
msg_Err( p_filter, "LoadFace: Error creating face for %s", psz_key );
}
}
#if defined( _WIN32 )
else if( !memcmp( psz_fontfile, ":dw/", 4 ) )
{
int i_index = atoi( psz_fontfile + 4 );
FT_Stream p_stream;
if( DWrite_GetFontStream( p_filter, i_index, &p_stream ) != VLC_SUCCESS )
msg_Err( p_filter, "LoadFace: Invalid font stream index" );
else
{
FT_Open_Args args = {0};
args.flags = FT_OPEN_STREAM;
args.stream = p_stream;
if( FT_Open_Face( p_sys->p_library, &args, i_idx, &p_face ) )
msg_Err( p_filter, "LoadFace: Error creating face for %s", psz_key );
}
}
#endif
else
if( FT_New_Face( p_sys->p_library, psz_fontfile, i_idx, &p_face ) )
msg_Err( p_filter, "LoadFace: Error creating face for %s", psz_key );
if( !p_face )
goto done;
if( FT_Select_Charmap( p_face, ft_encoding_unicode ) )
{
/* We've loaded a font face which is unhelpful for actually
* rendering text - fallback to the default one.
*/
msg_Err( p_filter, "LoadFace: Error selecting charmap for %s", psz_key );
FT_Done_Face( p_face );
p_face = NULL;
goto done;
}
if( FT_Set_Pixel_Sizes( p_face, i_font_width, i_font_size ) )
{
msg_Err( p_filter,
"LoadFace: Failed to set font size for %s", psz_key );
FT_Done_Face( p_face );
p_face = NULL;
goto done;
}
vlc_dictionary_insert( &p_sys->face_map, psz_key, p_face );
done:
free( psz_key );
return p_face;
}
