b9ce8e33a7
Ensure that all driver functions use the signature of the service or driver. This avoids pointer mismatches, which are technically undefined behaviour. Recent compilers are more picky in catching them as part of Control Flow Integrity tests.
269 lines
7.2 KiB
C
269 lines
7.2 KiB
C
/****************************************************************************
|
|
*
|
|
* cidriver.c
|
|
*
|
|
* CID driver interface (body).
|
|
*
|
|
* Copyright (C) 1996-2023 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 "cidriver.h"
|
|
#include "cidgload.h"
|
|
#include <freetype/internal/ftdebug.h>
|
|
#include <freetype/internal/ftpsprop.h>
|
|
|
|
#include "ciderrs.h"
|
|
|
|
#include <freetype/internal/services/svpostnm.h>
|
|
#include <freetype/internal/services/svfntfmt.h>
|
|
#include <freetype/internal/services/svpsinfo.h>
|
|
#include <freetype/internal/services/svcid.h>
|
|
#include <freetype/internal/services/svprop.h>
|
|
#include <freetype/ftdriver.h>
|
|
|
|
#include <freetype/internal/psaux.h>
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* The macro FT_COMPONENT is used in trace mode. It is an implicit
|
|
* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
|
|
* messages during execution.
|
|
*/
|
|
#undef FT_COMPONENT
|
|
#define FT_COMPONENT ciddriver
|
|
|
|
|
|
/*
|
|
* POSTSCRIPT NAME SERVICE
|
|
*
|
|
*/
|
|
|
|
FT_CALLBACK_DEF( const char* )
|
|
cid_get_postscript_name( FT_Face face ) /* CID_Face */
|
|
{
|
|
CID_Face cidface = (CID_Face)face;
|
|
const char* result = cidface->cid.cid_font_name;
|
|
|
|
|
|
if ( result && result[0] == '/' )
|
|
result++;
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
static const FT_Service_PsFontNameRec cid_service_ps_name =
|
|
{
|
|
(FT_PsName_GetFunc)cid_get_postscript_name /* get_ps_font_name */
|
|
};
|
|
|
|
|
|
/*
|
|
* POSTSCRIPT INFO SERVICE
|
|
*
|
|
*/
|
|
|
|
FT_CALLBACK_DEF( FT_Error )
|
|
cid_ps_get_font_info( FT_Face face, /* CID_Face */
|
|
PS_FontInfoRec* afont_info )
|
|
{
|
|
*afont_info = ( (CID_Face)face )->cid.font_info;
|
|
|
|
return FT_Err_Ok;
|
|
}
|
|
|
|
|
|
FT_CALLBACK_DEF( FT_Error )
|
|
cid_ps_get_font_extra( FT_Face face, /* CID_Face */
|
|
PS_FontExtraRec* afont_extra )
|
|
{
|
|
*afont_extra = ( (CID_Face)face )->font_extra;
|
|
|
|
return FT_Err_Ok;
|
|
}
|
|
|
|
|
|
static const FT_Service_PsInfoRec cid_service_ps_info =
|
|
{
|
|
(PS_GetFontInfoFunc) cid_ps_get_font_info, /* ps_get_font_info */
|
|
(PS_GetFontExtraFunc) cid_ps_get_font_extra, /* ps_get_font_extra */
|
|
/* unsupported with CID fonts */
|
|
(PS_HasGlyphNamesFunc) NULL, /* ps_has_glyph_names */
|
|
/* unsupported */
|
|
(PS_GetFontPrivateFunc)NULL, /* ps_get_font_private */
|
|
/* not implemented */
|
|
(PS_GetFontValueFunc) NULL /* ps_get_font_value */
|
|
};
|
|
|
|
|
|
/*
|
|
* CID INFO SERVICE
|
|
*
|
|
*/
|
|
FT_CALLBACK_DEF( FT_Error )
|
|
cid_get_ros( FT_Face face, /* CID_Face */
|
|
const char* *registry,
|
|
const char* *ordering,
|
|
FT_Int *supplement )
|
|
{
|
|
CID_Face cidface = (CID_Face)face;
|
|
CID_FaceInfo cid = &cidface->cid;
|
|
|
|
|
|
if ( registry )
|
|
*registry = cid->registry;
|
|
|
|
if ( ordering )
|
|
*ordering = cid->ordering;
|
|
|
|
if ( supplement )
|
|
*supplement = cid->supplement;
|
|
|
|
return FT_Err_Ok;
|
|
}
|
|
|
|
|
|
FT_CALLBACK_DEF( FT_Error )
|
|
cid_get_is_cid( FT_Face face, /* CID_Face */
|
|
FT_Bool *is_cid )
|
|
{
|
|
FT_Error error = FT_Err_Ok;
|
|
FT_UNUSED( face );
|
|
|
|
|
|
if ( is_cid )
|
|
*is_cid = 1; /* cid driver is only used for CID keyed fonts */
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
FT_CALLBACK_DEF( FT_Error )
|
|
cid_get_cid_from_glyph_index( FT_Face face, /* CID_Face */
|
|
FT_UInt glyph_index,
|
|
FT_UInt *cid )
|
|
{
|
|
FT_Error error = FT_Err_Ok;
|
|
CID_Face cidface = (CID_Face)face;
|
|
|
|
|
|
/*
|
|
* Currently, FreeType does not support incrementally-defined, CID-keyed
|
|
* fonts that store the glyph description data in a `/GlyphDirectory`
|
|
* array or dictionary. Fonts loaded by the incremental loading feature
|
|
* are thus not handled here.
|
|
*/
|
|
error = cid_compute_fd_and_offsets( cidface, glyph_index,
|
|
NULL, NULL, NULL );
|
|
if ( error )
|
|
*cid = 0;
|
|
else
|
|
*cid = glyph_index;
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
static const FT_Service_CIDRec cid_service_cid_info =
|
|
{
|
|
(FT_CID_GetRegistryOrderingSupplementFunc)
|
|
cid_get_ros, /* get_ros */
|
|
(FT_CID_GetIsInternallyCIDKeyedFunc)
|
|
cid_get_is_cid, /* get_is_cid */
|
|
(FT_CID_GetCIDFromGlyphIndexFunc)
|
|
cid_get_cid_from_glyph_index /* get_cid_from_glyph_index */
|
|
};
|
|
|
|
|
|
/*
|
|
* PROPERTY SERVICE
|
|
*
|
|
*/
|
|
|
|
FT_DEFINE_SERVICE_PROPERTIESREC(
|
|
cid_service_properties,
|
|
|
|
(FT_Properties_SetFunc)ps_property_set, /* set_property */
|
|
(FT_Properties_GetFunc)ps_property_get ) /* get_property */
|
|
|
|
|
|
/*
|
|
* SERVICE LIST
|
|
*
|
|
*/
|
|
|
|
static const FT_ServiceDescRec cid_services[] =
|
|
{
|
|
{ FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CID },
|
|
{ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cid_service_ps_name },
|
|
{ FT_SERVICE_ID_POSTSCRIPT_INFO, &cid_service_ps_info },
|
|
{ FT_SERVICE_ID_CID, &cid_service_cid_info },
|
|
{ FT_SERVICE_ID_PROPERTIES, &cid_service_properties },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
|
|
FT_CALLBACK_DEF( FT_Module_Interface )
|
|
cid_get_interface( FT_Module module,
|
|
const char* cid_interface )
|
|
{
|
|
FT_UNUSED( module );
|
|
|
|
return ft_service_list_lookup( cid_services, cid_interface );
|
|
}
|
|
|
|
|
|
FT_CALLBACK_TABLE_DEF
|
|
const FT_Driver_ClassRec t1cid_driver_class =
|
|
{
|
|
{
|
|
FT_MODULE_FONT_DRIVER |
|
|
FT_MODULE_DRIVER_SCALABLE |
|
|
FT_MODULE_DRIVER_HAS_HINTER,
|
|
sizeof ( PS_DriverRec ),
|
|
|
|
"t1cid", /* module name */
|
|
0x10000L, /* version 1.0 of driver */
|
|
0x20000L, /* requires FreeType 2.0 */
|
|
|
|
NULL, /* module-specific interface */
|
|
|
|
cid_driver_init, /* FT_Module_Constructor module_init */
|
|
cid_driver_done, /* FT_Module_Destructor module_done */
|
|
cid_get_interface /* FT_Module_Requester get_interface */
|
|
},
|
|
|
|
sizeof ( CID_FaceRec ),
|
|
sizeof ( CID_SizeRec ),
|
|
sizeof ( CID_GlyphSlotRec ),
|
|
|
|
cid_face_init, /* FT_Face_InitFunc init_face */
|
|
cid_face_done, /* FT_Face_DoneFunc done_face */
|
|
cid_size_init, /* FT_Size_InitFunc init_size */
|
|
cid_size_done, /* FT_Size_DoneFunc done_size */
|
|
cid_slot_init, /* FT_Slot_InitFunc init_slot */
|
|
cid_slot_done, /* FT_Slot_DoneFunc done_slot */
|
|
|
|
cid_slot_load_glyph, /* FT_Slot_LoadFunc load_glyph */
|
|
|
|
NULL, /* FT_Face_GetKerningFunc get_kerning */
|
|
NULL, /* FT_Face_AttachFunc attach_file */
|
|
NULL, /* FT_Face_GetAdvancesFunc get_advances */
|
|
|
|
cid_size_request, /* FT_Size_RequestFunc request_size */
|
|
NULL /* FT_Size_SelectFunc select_size */
|
|
};
|
|
|
|
|
|
/* END */
|