freetype/src/base/ftcid.c
Werner Lemberg 07e818170f Extend CID service functions to handle CID-keyed CFFs as CID fonts.
* include/freetype/ftcid.h (FT_Get_CID_Is_Internally_CID_keyed,
FT_Get_CID_From_Glyph_Index): New functions.

* include/freetype/internal/services/svcid.h
(FT_CID_GetIsInternallyCIDKeyedFunc,
FT_CID_GetCIDFromGlyphIndexFunc): New function typedefs.
(CID Service): Use them.

* src/base/ftcid.c: Include FT_CID_H.
(FT_Get_CID_Is_Internally_CID_keyed, FT_Get_CID_From_Glyph_Index):
New functions.

* src/cff/cffdrivr.c (cff_get_is_cid, cff_get_cid_from_glyph_index):
New functions.
(cff_service_cid_info): Add them.
* src/cff/cffload.c (cff_font_load): Don't free `font->charset.sids'
-- it is needed for access as a CID-keyed font.  It gets deleted
later on.

* src/cid/cidriver.c (cid_get_is_cid, cid_get_cid_from_glyph_index):
New functions.
(cid_service_cid_info): Add them.

* docs/CHANGES: Updated.
2009-03-11 21:29:54 +00:00

118 lines
3.1 KiB
C

/***************************************************************************/
/* */
/* ftcid.c */
/* */
/* FreeType API for accessing CID font information. */
/* */
/* Copyright 2007, 2009 by Derek Clegg, Michael Toftdal. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
#include <ft2build.h>
#include FT_CID_H
#include FT_INTERNAL_OBJECTS_H
#include FT_SERVICE_CID_H
/* documentation is in ftcid.h */
FT_EXPORT_DEF( FT_Error )
FT_Get_CID_Registry_Ordering_Supplement( FT_Face face,
const char* *registry,
const char* *ordering,
FT_Int *supplement)
{
FT_Error error;
const char* r = NULL;
const char* o = NULL;
FT_Int s = 0;
error = FT_Err_Invalid_Argument;
if ( face )
{
FT_Service_CID service;
FT_FACE_FIND_SERVICE( face, service, CID );
if ( service && service->get_ros )
error = service->get_ros( face, &r, &o, &s );
}
if ( registry )
*registry = r;
if ( ordering )
*ordering = o;
if ( supplement )
*supplement = s;
return error;
}
FT_EXPORT_DEF( FT_Error )
FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face,
FT_Bool *is_cid )
{
FT_Error error = FT_Err_Invalid_Argument;
FT_Bool ic = 0;
if ( face )
{
FT_Service_CID service;
FT_FACE_FIND_SERVICE( face, service, CID );
if ( service && service->get_is_cid )
error = service->get_is_cid( face, &ic);
}
if ( is_cid )
*is_cid = ic;
return error;
}
FT_EXPORT_DEF( FT_Error )
FT_Get_CID_From_Glyph_Index( FT_Face face,
FT_UInt glyph_index,
FT_UInt *cid )
{
FT_Error error = FT_Err_Invalid_Argument;
FT_UInt c = 0;
if ( face )
{
FT_Service_CID service;
FT_FACE_FIND_SERVICE( face, service, CID );
if ( service && service->get_cid_from_glyph_index )
error = service->get_cid_from_glyph_index( face, glyph_index, &c);
}
if ( cid )
*cid = c;
return error;
}
/* END */