ref: c3101e4da486b2bf2e8b911bcb62dd8ec31c41bf
dir: /libfreetype/ftpfr.c/
/***************************************************************************/
/* */
/* ftpfr.c */
/* */
/* FreeType API for accessing PFR-specific data */
/* */
/* Copyright 2002 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* 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_INTERNAL_PFR_H
#include FT_INTERNAL_OBJECTS_H
/* check the format */
static FT_Error
ft_pfr_check( FT_Face face,
FT_PFR_Service *aservice )
{
FT_Error error = FT_Err_Bad_Argument;
if ( face && face->driver )
{
FT_Module module = (FT_Module) face->driver;
const char* name = module->clazz->module_name;
if ( name[0] == 'p' &&
name[1] == 'f' &&
name[2] == 'r' &&
name[4] == 0 )
{
*aservice = (FT_PFR_Service) module->clazz->module_interface;
error = 0;
}
}
return error;
}
FT_EXPORT_DEF( FT_Error )
FT_Get_PFR_Metrics( FT_Face face,
FT_UInt *aoutline_resolution,
FT_UInt *ametrics_resolution,
FT_Fixed *ametrics_x_scale,
FT_Fixed *ametrics_y_scale )
{
FT_Error error;
FT_PFR_Service service;
error = ft_pfr_check( face, &service );
if ( !error )
{
error = service->get_metrics( face,
aoutline_resolution,
ametrics_resolution,
ametrics_x_scale,
ametrics_y_scale );
}
return error;
}
FT_EXPORT_DEF( FT_Error )
FT_Get_PFR_Kerning( FT_Face face,
FT_UInt left,
FT_UInt right,
FT_Vector *avector )
{
FT_Error error;
FT_PFR_Service service;
error = ft_pfr_check( face, &service );
if ( !error )
{
error = service->get_kerning( face, left, right, avector );
}
return error;
}
FT_EXPORT_DEF( FT_Error )
FT_Get_PFR_Advance( FT_Face face,
FT_UInt gindex,
FT_Pos *aadvance )
{
FT_Error error;
FT_PFR_Service service;
error = ft_pfr_check( face, &service );
if ( !error )
{
error = service->get_advance( face, gindex, aadvance );
}
return error;
}
/* END */