ftc_image_node_init( FTC_ImageNode inode,
FTC_GlyphQuery gquery,
FTC_Cache cache )
{
FTC_ImageFamily ifam = FTC_IMAGE_FAMILY( gquery->query.family );
FT_Error error;
FT_Face face;
FT_Size size;
/* initialize its inner fields */
ftc_glyph_node_init( FTC_GLYPH_NODE( inode ),
gquery->gindex,
FTC_GLYPH_FAMILY( ifam ) );
/* we will now load the glyph image */
error = FTC_Manager_Lookup_Size( FTC_FAMILY( ifam )->cache->manager,
&ifam->type.font,
&face, &size );
if ( !error )
{
FT_UInt gindex = FTC_GLYPH_NODE_GINDEX( inode );
error = FT_Load_Glyph( face, gindex, ifam->type.flags );
if ( !error )
{
if ( face->glyph->format == FT_GLYPH_FORMAT_BITMAP ||
face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
{
/* ok, copy it */
FT_Glyph glyph;
error = FT_Get_Glyph( face->glyph, &glyph );
if ( !error )
{
inode->glyph = glyph;
goto Exit;
}
}
else
error = FTC_Err_Invalid_Argument;
}
}
/* in case of error */
ftc_glyph_node_done( FTC_GLYPH_NODE(inode), cache );
Exit:
return error;
}
ftc_basic_family_init( FTC_MruNode ftcfamily,
FT_Pointer ftcquery,
FT_Pointer ftccache )
{
FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily;
FTC_BasicQuery query = (FTC_BasicQuery)ftcquery;
FTC_Cache cache = (FTC_Cache)ftccache;
FTC_Family_Init( FTC_FAMILY( family ), cache );
family->attrs = query->attrs;
return 0;
}
ftc_cmap_family_compare( FTC_CMapFamily cfam,
FTC_CMapQuery cquery )
{
FT_Int result = 0;
/* first, compare face id and type */
if ( cfam->desc.face_id != cquery->desc->face_id ||
cfam->desc.type != cquery->desc->type )
goto Exit;
switch ( cfam->desc.type )
{
case FTC_CMAP_BY_INDEX:
result = ( cfam->desc.u.index == cquery->desc->u.index );
break;
case FTC_CMAP_BY_ENCODING:
result = ( cfam->desc.u.encoding == cquery->desc->u.encoding );
break;
case FTC_CMAP_BY_ID:
result = ( cfam->desc.u.id.platform == cquery->desc->u.id.platform &&
cfam->desc.u.id.encoding == cquery->desc->u.id.encoding );
break;
default:
;
}
if ( result )
{
/* when found, update the 'family' and 'hash' field of the query */
FTC_QUERY( cquery )->family = FTC_FAMILY( cfam );
FTC_QUERY( cquery )->hash = FTC_CMAP_HASH( cfam, cquery );
}
Exit:
return FT_BOOL( result );
}
ftc_glyph_family_init( FTC_GlyphFamily gfam,
FT_UInt32 hash,
FT_UInt item_count,
FT_UInt item_total,
FTC_GlyphQuery gquery,
FTC_Cache cache )
{
FT_Error error;
error = ftc_family_init( FTC_FAMILY( gfam ), FTC_QUERY( gquery ), cache );
if ( !error )
{
gfam->hash = hash;
gfam->item_total = item_total;
gfam->item_count = item_count;
FTC_GLYPH_FAMILY_FOUND( gfam, gquery );
}
return error;
}
ftc_glyph_family_done( FTC_GlyphFamily gfam )
{
ftc_family_done( FTC_FAMILY( gfam ) );
}
ftc_cmap_family_init( FTC_CMapFamily cfam,
FTC_CMapQuery cquery,
FTC_Cache cache )
{
FTC_Manager manager = cache->manager;
FTC_CMapDesc desc = cquery->desc;
FT_UInt32 hash = 0;
FT_Error error;
FT_Face face;
/* setup charmap descriptor */
cfam->desc = *desc;
/* let's see whether the rest is correct too */
error = FTC_Manager_Lookup_Face( manager, desc->face_id, &face );
if ( !error )
{
FT_UInt count = face->num_charmaps;
FT_UInt idx = count;
FT_CharMap* cur = face->charmaps;
switch ( desc->type )
{
case FTC_CMAP_BY_INDEX:
idx = desc->u.index;
hash = idx * 33;
break;
case FTC_CMAP_BY_ENCODING:
for ( idx = 0; idx < count; idx++, cur++ )
if ( cur[0]->encoding == desc->u.encoding )
break;
hash = idx * 67;
break;
case FTC_CMAP_BY_ID:
for ( idx = 0; idx < count; idx++, cur++ )
{
if ( (FT_UInt)cur[0]->platform_id == desc->u.id.platform &&
(FT_UInt)cur[0]->encoding_id == desc->u.id.encoding )
{
hash = ( ( desc->u.id.platform << 8 ) | desc->u.id.encoding ) * 7;
break;
}
}
break;
default:
;
}
if ( idx >= count )
goto Bad_Descriptor;
/* compute hash value, both in family and query */
cfam->index = idx;
cfam->hash = hash ^ FTC_FACE_ID_HASH( desc->face_id );
FTC_QUERY( cquery )->hash = FTC_CMAP_HASH( cfam, cquery );
error = ftc_family_init( FTC_FAMILY( cfam ),
FTC_QUERY( cquery ), cache );
}
return error;
Bad_Descriptor:
FT_ERROR(( "ftp_cmap_family_init: invalid charmap descriptor\n" ));
return FTC_Err_Invalid_Argument;
}
