v1.4.4
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763
lib/linux/include/internal/ftserv.h
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763
lib/linux/include/internal/ftserv.h
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/***************************************************************************/
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/* */
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/* ftserv.h */
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/* */
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/* The FreeType services (specification only). */
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/* */
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/* Copyright 2003-2007, 2009, 2012, 2013 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/*************************************************************************/
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/* */
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/* Each module can export one or more `services'. Each service is */
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/* identified by a constant string and modeled by a pointer; the latter */
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/* generally corresponds to a structure containing function pointers. */
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/* */
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/* Note that a service's data cannot be a mere function pointer because */
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/* in C it is possible that function pointers might be implemented */
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/* differently than data pointers (e.g. 48 bits instead of 32). */
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/* */
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/*************************************************************************/
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#ifndef __FTSERV_H__
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#define __FTSERV_H__
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FT_BEGIN_HEADER
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/*
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* @macro:
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* FT_FACE_FIND_SERVICE
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*
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* @description:
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* This macro is used to look up a service from a face's driver module.
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*
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* @input:
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* face ::
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* The source face handle.
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*
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* id ::
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* A string describing the service as defined in the service's
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* header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
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* `multi-masters'). It is automatically prefixed with
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* `FT_SERVICE_ID_'.
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*
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* @output:
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* ptr ::
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* A variable that receives the service pointer. Will be NULL
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* if not found.
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*/
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#ifdef __cplusplus
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#define FT_FACE_FIND_SERVICE( face, ptr, id ) \
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FT_BEGIN_STMNT \
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FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
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FT_Pointer _tmp_ = NULL; \
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FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \
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\
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\
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if ( module->clazz->get_interface ) \
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_tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \
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*_pptr_ = _tmp_; \
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FT_END_STMNT
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#else /* !C++ */
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#define FT_FACE_FIND_SERVICE( face, ptr, id ) \
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FT_BEGIN_STMNT \
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FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
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FT_Pointer _tmp_ = NULL; \
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\
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if ( module->clazz->get_interface ) \
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_tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \
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ptr = _tmp_; \
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FT_END_STMNT
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#endif /* !C++ */
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/*
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* @macro:
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* FT_FACE_FIND_GLOBAL_SERVICE
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*
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* @description:
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* This macro is used to look up a service from all modules.
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*
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* @input:
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* face ::
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* The source face handle.
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*
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* id ::
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* A string describing the service as defined in the service's
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* header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
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* `multi-masters'). It is automatically prefixed with
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* `FT_SERVICE_ID_'.
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*
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* @output:
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* ptr ::
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* A variable that receives the service pointer. Will be NULL
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* if not found.
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*/
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#ifdef __cplusplus
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#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \
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FT_BEGIN_STMNT \
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FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
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FT_Pointer _tmp_; \
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FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \
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\
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\
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_tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \
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*_pptr_ = _tmp_; \
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FT_END_STMNT
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#else /* !C++ */
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#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \
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FT_BEGIN_STMNT \
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FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
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FT_Pointer _tmp_; \
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\
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\
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_tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \
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ptr = _tmp_; \
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FT_END_STMNT
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#endif /* !C++ */
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** S E R V I C E D E S C R I P T O R S *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/*
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* The following structure is used to _describe_ a given service
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* to the library. This is useful to build simple static service lists.
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*/
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typedef struct FT_ServiceDescRec_
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{
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const char* serv_id; /* service name */
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const void* serv_data; /* service pointer/data */
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} FT_ServiceDescRec;
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typedef const FT_ServiceDescRec* FT_ServiceDesc;
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/*************************************************************************/
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/* */
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/* <Macro> */
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/* FT_DEFINE_SERVICEDESCREC1 */
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/* FT_DEFINE_SERVICEDESCREC2 */
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/* FT_DEFINE_SERVICEDESCREC3 */
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/* FT_DEFINE_SERVICEDESCREC4 */
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/* FT_DEFINE_SERVICEDESCREC5 */
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/* FT_DEFINE_SERVICEDESCREC6 */
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/* FT_DEFINE_SERVICEDESCREC7 */
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/* */
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/* <Description> */
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/* Used to initialize an array of FT_ServiceDescRec structures. */
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/* */
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/* When FT_CONFIG_OPTION_PIC is defined a `create' function needs to */
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/* be called with a pointer to return an allocated array. As soon as */
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/* it is no longer needed, a `destroy' function needs to be called to */
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/* release that allocation. */
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/* */
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/* These functions should be manually called from the `pic_init' and */
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/* `pic_free' functions of your module (see FT_DEFINE_MODULE). */
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/* */
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/* When FT_CONFIG_OPTION_PIC is not defined the array will be */
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/* allocated in the global scope (or the scope where the macro is */
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/* used). */
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/* */
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#ifndef FT_CONFIG_OPTION_PIC
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#define FT_DEFINE_SERVICEDESCREC1( class_, \
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serv_id_1, serv_data_1 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ NULL, NULL } \
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};
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#define FT_DEFINE_SERVICEDESCREC2( class_, \
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serv_id_1, serv_data_1, \
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serv_id_2, serv_data_2 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ serv_id_2, serv_data_2 }, \
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{ NULL, NULL } \
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};
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#define FT_DEFINE_SERVICEDESCREC3( class_, \
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serv_id_1, serv_data_1, \
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serv_id_2, serv_data_2, \
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serv_id_3, serv_data_3 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ serv_id_2, serv_data_2 }, \
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{ serv_id_3, serv_data_3 }, \
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{ NULL, NULL } \
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};
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#define FT_DEFINE_SERVICEDESCREC4( class_, \
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serv_id_1, serv_data_1, \
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serv_id_2, serv_data_2, \
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serv_id_3, serv_data_3, \
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serv_id_4, serv_data_4 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ serv_id_2, serv_data_2 }, \
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{ serv_id_3, serv_data_3 }, \
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{ serv_id_4, serv_data_4 }, \
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{ NULL, NULL } \
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};
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#define FT_DEFINE_SERVICEDESCREC5( class_, \
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serv_id_1, serv_data_1, \
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serv_id_2, serv_data_2, \
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serv_id_3, serv_data_3, \
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serv_id_4, serv_data_4, \
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serv_id_5, serv_data_5 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ serv_id_2, serv_data_2 }, \
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{ serv_id_3, serv_data_3 }, \
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{ serv_id_4, serv_data_4 }, \
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{ serv_id_5, serv_data_5 }, \
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{ NULL, NULL } \
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};
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#define FT_DEFINE_SERVICEDESCREC6( class_, \
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serv_id_1, serv_data_1, \
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serv_id_2, serv_data_2, \
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serv_id_3, serv_data_3, \
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serv_id_4, serv_data_4, \
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serv_id_5, serv_data_5, \
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serv_id_6, serv_data_6 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ serv_id_2, serv_data_2 }, \
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{ serv_id_3, serv_data_3 }, \
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{ serv_id_4, serv_data_4 }, \
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{ serv_id_5, serv_data_5 }, \
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{ serv_id_6, serv_data_6 }, \
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{ NULL, NULL } \
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};
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#define FT_DEFINE_SERVICEDESCREC7( class_, \
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serv_id_1, serv_data_1, \
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serv_id_2, serv_data_2, \
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serv_id_3, serv_data_3, \
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serv_id_4, serv_data_4, \
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serv_id_5, serv_data_5, \
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serv_id_6, serv_data_6, \
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serv_id_7, serv_data_7 ) \
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static const FT_ServiceDescRec class_[] = \
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{ \
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{ serv_id_1, serv_data_1 }, \
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{ serv_id_2, serv_data_2 }, \
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{ serv_id_3, serv_data_3 }, \
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{ serv_id_4, serv_data_4 }, \
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{ serv_id_5, serv_data_5 }, \
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{ serv_id_6, serv_data_6 }, \
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{ serv_id_7, serv_data_7 }, \
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{ NULL, NULL } \
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};
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#else /* FT_CONFIG_OPTION_PIC */
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#define FT_DEFINE_SERVICEDESCREC1( class_, \
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serv_id_1, serv_data_1 ) \
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void \
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FT_Destroy_Class_ ## class_( FT_Library library, \
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FT_ServiceDescRec* clazz ) \
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{ \
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FT_Memory memory = library->memory; \
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\
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\
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if ( clazz ) \
|
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FT_FREE( clazz ); \
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} \
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\
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FT_Error \
|
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FT_Create_Class_ ## class_( FT_Library library, \
|
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FT_ServiceDescRec** output_class ) \
|
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{ \
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FT_ServiceDescRec* clazz = NULL; \
|
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FT_Error error; \
|
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FT_Memory memory = library->memory; \
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\
|
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\
|
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if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 2 ) ) \
|
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return error; \
|
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\
|
||||
clazz[0].serv_id = serv_id_1; \
|
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clazz[0].serv_data = serv_data_1; \
|
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clazz[1].serv_id = NULL; \
|
||||
clazz[1].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#define FT_DEFINE_SERVICEDESCREC2( class_, \
|
||||
serv_id_1, serv_data_1, \
|
||||
serv_id_2, serv_data_2 ) \
|
||||
void \
|
||||
FT_Destroy_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec* clazz ) \
|
||||
{ \
|
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FT_Memory memory = library->memory; \
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\
|
||||
\
|
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if ( clazz ) \
|
||||
FT_FREE( clazz ); \
|
||||
} \
|
||||
\
|
||||
FT_Error \
|
||||
FT_Create_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec** output_class ) \
|
||||
{ \
|
||||
FT_ServiceDescRec* clazz = NULL; \
|
||||
FT_Error error; \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 3 ) ) \
|
||||
return error; \
|
||||
\
|
||||
clazz[0].serv_id = serv_id_1; \
|
||||
clazz[0].serv_data = serv_data_1; \
|
||||
clazz[1].serv_id = serv_id_2; \
|
||||
clazz[1].serv_data = serv_data_2; \
|
||||
clazz[2].serv_id = NULL; \
|
||||
clazz[2].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#define FT_DEFINE_SERVICEDESCREC3( class_, \
|
||||
serv_id_1, serv_data_1, \
|
||||
serv_id_2, serv_data_2, \
|
||||
serv_id_3, serv_data_3 ) \
|
||||
void \
|
||||
FT_Destroy_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec* clazz ) \
|
||||
{ \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( clazz ) \
|
||||
FT_FREE( clazz ); \
|
||||
} \
|
||||
\
|
||||
FT_Error \
|
||||
FT_Create_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec** output_class ) \
|
||||
{ \
|
||||
FT_ServiceDescRec* clazz = NULL; \
|
||||
FT_Error error; \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 4 ) ) \
|
||||
return error; \
|
||||
\
|
||||
clazz[0].serv_id = serv_id_1; \
|
||||
clazz[0].serv_data = serv_data_1; \
|
||||
clazz[1].serv_id = serv_id_2; \
|
||||
clazz[1].serv_data = serv_data_2; \
|
||||
clazz[2].serv_id = serv_id_3; \
|
||||
clazz[2].serv_data = serv_data_3; \
|
||||
clazz[3].serv_id = NULL; \
|
||||
clazz[3].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#define FT_DEFINE_SERVICEDESCREC4( class_, \
|
||||
serv_id_1, serv_data_1, \
|
||||
serv_id_2, serv_data_2, \
|
||||
serv_id_3, serv_data_3, \
|
||||
serv_id_4, serv_data_4 ) \
|
||||
void \
|
||||
FT_Destroy_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec* clazz ) \
|
||||
{ \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( clazz ) \
|
||||
FT_FREE( clazz ); \
|
||||
} \
|
||||
\
|
||||
FT_Error \
|
||||
FT_Create_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec** output_class ) \
|
||||
{ \
|
||||
FT_ServiceDescRec* clazz = NULL; \
|
||||
FT_Error error; \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 5 ) ) \
|
||||
return error; \
|
||||
\
|
||||
clazz[0].serv_id = serv_id_1; \
|
||||
clazz[0].serv_data = serv_data_1; \
|
||||
clazz[1].serv_id = serv_id_2; \
|
||||
clazz[1].serv_data = serv_data_2; \
|
||||
clazz[2].serv_id = serv_id_3; \
|
||||
clazz[2].serv_data = serv_data_3; \
|
||||
clazz[3].serv_id = serv_id_4; \
|
||||
clazz[3].serv_data = serv_data_4; \
|
||||
clazz[4].serv_id = NULL; \
|
||||
clazz[4].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#define FT_DEFINE_SERVICEDESCREC5( class_, \
|
||||
serv_id_1, serv_data_1, \
|
||||
serv_id_2, serv_data_2, \
|
||||
serv_id_3, serv_data_3, \
|
||||
serv_id_4, serv_data_4, \
|
||||
serv_id_5, serv_data_5 ) \
|
||||
void \
|
||||
FT_Destroy_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec* clazz ) \
|
||||
{ \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( clazz ) \
|
||||
FT_FREE( clazz ); \
|
||||
} \
|
||||
\
|
||||
FT_Error \
|
||||
FT_Create_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec** output_class ) \
|
||||
{ \
|
||||
FT_ServiceDescRec* clazz = NULL; \
|
||||
FT_Error error; \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 6 ) ) \
|
||||
return error; \
|
||||
\
|
||||
clazz[0].serv_id = serv_id_1; \
|
||||
clazz[0].serv_data = serv_data_1; \
|
||||
clazz[1].serv_id = serv_id_2; \
|
||||
clazz[1].serv_data = serv_data_2; \
|
||||
clazz[2].serv_id = serv_id_3; \
|
||||
clazz[2].serv_data = serv_data_3; \
|
||||
clazz[3].serv_id = serv_id_4; \
|
||||
clazz[3].serv_data = serv_data_4; \
|
||||
clazz[4].serv_id = serv_id_5; \
|
||||
clazz[4].serv_data = serv_data_5; \
|
||||
clazz[5].serv_id = NULL; \
|
||||
clazz[5].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#define FT_DEFINE_SERVICEDESCREC6( class_, \
|
||||
serv_id_1, serv_data_1, \
|
||||
serv_id_2, serv_data_2, \
|
||||
serv_id_3, serv_data_3, \
|
||||
serv_id_4, serv_data_4, \
|
||||
serv_id_5, serv_data_5, \
|
||||
serv_id_6, serv_data_6 ) \
|
||||
void \
|
||||
FT_Destroy_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec* clazz ) \
|
||||
{ \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( clazz ) \
|
||||
FT_FREE( clazz ); \
|
||||
} \
|
||||
\
|
||||
FT_Error \
|
||||
FT_Create_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec** output_class) \
|
||||
{ \
|
||||
FT_ServiceDescRec* clazz = NULL; \
|
||||
FT_Error error; \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 7 ) ) \
|
||||
return error; \
|
||||
\
|
||||
clazz[0].serv_id = serv_id_1; \
|
||||
clazz[0].serv_data = serv_data_1; \
|
||||
clazz[1].serv_id = serv_id_2; \
|
||||
clazz[1].serv_data = serv_data_2; \
|
||||
clazz[2].serv_id = serv_id_3; \
|
||||
clazz[2].serv_data = serv_data_3; \
|
||||
clazz[3].serv_id = serv_id_4; \
|
||||
clazz[3].serv_data = serv_data_4; \
|
||||
clazz[4].serv_id = serv_id_5; \
|
||||
clazz[4].serv_data = serv_data_5; \
|
||||
clazz[5].serv_id = serv_id_6; \
|
||||
clazz[5].serv_data = serv_data_6; \
|
||||
clazz[6].serv_id = NULL; \
|
||||
clazz[6].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#define FT_DEFINE_SERVICEDESCREC7( class_, \
|
||||
serv_id_1, serv_data_1, \
|
||||
serv_id_2, serv_data_2, \
|
||||
serv_id_3, serv_data_3, \
|
||||
serv_id_4, serv_data_4, \
|
||||
serv_id_5, serv_data_5, \
|
||||
serv_id_6, serv_data_6, \
|
||||
serv_id_7, serv_data_7 ) \
|
||||
void \
|
||||
FT_Destroy_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec* clazz ) \
|
||||
{ \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( clazz ) \
|
||||
FT_FREE( clazz ); \
|
||||
} \
|
||||
\
|
||||
FT_Error \
|
||||
FT_Create_Class_ ## class_( FT_Library library, \
|
||||
FT_ServiceDescRec** output_class) \
|
||||
{ \
|
||||
FT_ServiceDescRec* clazz = NULL; \
|
||||
FT_Error error; \
|
||||
FT_Memory memory = library->memory; \
|
||||
\
|
||||
\
|
||||
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 8 ) ) \
|
||||
return error; \
|
||||
\
|
||||
clazz[0].serv_id = serv_id_1; \
|
||||
clazz[0].serv_data = serv_data_1; \
|
||||
clazz[1].serv_id = serv_id_2; \
|
||||
clazz[1].serv_data = serv_data_2; \
|
||||
clazz[2].serv_id = serv_id_3; \
|
||||
clazz[2].serv_data = serv_data_3; \
|
||||
clazz[3].serv_id = serv_id_4; \
|
||||
clazz[3].serv_data = serv_data_4; \
|
||||
clazz[4].serv_id = serv_id_5; \
|
||||
clazz[4].serv_data = serv_data_5; \
|
||||
clazz[5].serv_id = serv_id_6; \
|
||||
clazz[5].serv_data = serv_data_6; \
|
||||
clazz[6].serv_id = serv_id_7; \
|
||||
clazz[6].serv_data = serv_data_7; \
|
||||
clazz[7].serv_id = NULL; \
|
||||
clazz[7].serv_data = NULL; \
|
||||
\
|
||||
*output_class = clazz; \
|
||||
\
|
||||
return FT_Err_Ok; \
|
||||
}
|
||||
|
||||
#endif /* FT_CONFIG_OPTION_PIC */
|
||||
|
||||
|
||||
/*
|
||||
* Parse a list of FT_ServiceDescRec descriptors and look for
|
||||
* a specific service by ID. Note that the last element in the
|
||||
* array must be { NULL, NULL }, and that the function should
|
||||
* return NULL if the service isn't available.
|
||||
*
|
||||
* This function can be used by modules to implement their
|
||||
* `get_service' method.
|
||||
*/
|
||||
FT_BASE( FT_Pointer )
|
||||
ft_service_list_lookup( FT_ServiceDesc service_descriptors,
|
||||
const char* service_id );
|
||||
|
||||
|
||||
/*************************************************************************/
|
||||
/*************************************************************************/
|
||||
/***** *****/
|
||||
/***** S E R V I C E S C A C H E *****/
|
||||
/***** *****/
|
||||
/*************************************************************************/
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* This structure is used to store a cache for several frequently used
|
||||
* services. It is the type of `face->internal->services'. You
|
||||
* should only use FT_FACE_LOOKUP_SERVICE to access it.
|
||||
*
|
||||
* All fields should have the type FT_Pointer to relax compilation
|
||||
* dependencies. We assume the developer isn't completely stupid.
|
||||
*
|
||||
* Each field must be named `service_XXXX' where `XXX' corresponds to
|
||||
* the correct FT_SERVICE_ID_XXXX macro. See the definition of
|
||||
* FT_FACE_LOOKUP_SERVICE below how this is implemented.
|
||||
*
|
||||
*/
|
||||
typedef struct FT_ServiceCacheRec_
|
||||
{
|
||||
FT_Pointer service_POSTSCRIPT_FONT_NAME;
|
||||
FT_Pointer service_MULTI_MASTERS;
|
||||
FT_Pointer service_GLYPH_DICT;
|
||||
FT_Pointer service_PFR_METRICS;
|
||||
FT_Pointer service_WINFNT;
|
||||
|
||||
} FT_ServiceCacheRec, *FT_ServiceCache;
|
||||
|
||||
|
||||
/*
|
||||
* A magic number used within the services cache.
|
||||
*/
|
||||
|
||||
/* ensure that value `1' has the same width as a pointer */
|
||||
#define FT_SERVICE_UNAVAILABLE ((FT_Pointer)~(FT_PtrDist)1)
|
||||
|
||||
|
||||
/*
|
||||
* @macro:
|
||||
* FT_FACE_LOOKUP_SERVICE
|
||||
*
|
||||
* @description:
|
||||
* This macro is used to lookup a service from a face's driver module
|
||||
* using its cache.
|
||||
*
|
||||
* @input:
|
||||
* face::
|
||||
* The source face handle containing the cache.
|
||||
*
|
||||
* field ::
|
||||
* The field name in the cache.
|
||||
*
|
||||
* id ::
|
||||
* The service ID.
|
||||
*
|
||||
* @output:
|
||||
* ptr ::
|
||||
* A variable receiving the service data. NULL if not available.
|
||||
*/
|
||||
#ifdef __cplusplus
|
||||
|
||||
#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \
|
||||
FT_BEGIN_STMNT \
|
||||
FT_Pointer svc; \
|
||||
FT_Pointer* Pptr = (FT_Pointer*)&(ptr); \
|
||||
\
|
||||
\
|
||||
svc = FT_FACE( face )->internal->services. service_ ## id; \
|
||||
if ( svc == FT_SERVICE_UNAVAILABLE ) \
|
||||
svc = NULL; \
|
||||
else if ( svc == NULL ) \
|
||||
{ \
|
||||
FT_FACE_FIND_SERVICE( face, svc, id ); \
|
||||
\
|
||||
FT_FACE( face )->internal->services. service_ ## id = \
|
||||
(FT_Pointer)( svc != NULL ? svc \
|
||||
: FT_SERVICE_UNAVAILABLE ); \
|
||||
} \
|
||||
*Pptr = svc; \
|
||||
FT_END_STMNT
|
||||
|
||||
#else /* !C++ */
|
||||
|
||||
#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \
|
||||
FT_BEGIN_STMNT \
|
||||
FT_Pointer svc; \
|
||||
\
|
||||
\
|
||||
svc = FT_FACE( face )->internal->services. service_ ## id; \
|
||||
if ( svc == FT_SERVICE_UNAVAILABLE ) \
|
||||
svc = NULL; \
|
||||
else if ( svc == NULL ) \
|
||||
{ \
|
||||
FT_FACE_FIND_SERVICE( face, svc, id ); \
|
||||
\
|
||||
FT_FACE( face )->internal->services. service_ ## id = \
|
||||
(FT_Pointer)( svc != NULL ? svc \
|
||||
: FT_SERVICE_UNAVAILABLE ); \
|
||||
} \
|
||||
ptr = svc; \
|
||||
FT_END_STMNT
|
||||
|
||||
#endif /* !C++ */
|
||||
|
||||
/*
|
||||
* A macro used to define new service structure types.
|
||||
*/
|
||||
|
||||
#define FT_DEFINE_SERVICE( name ) \
|
||||
typedef struct FT_Service_ ## name ## Rec_ \
|
||||
FT_Service_ ## name ## Rec ; \
|
||||
typedef struct FT_Service_ ## name ## Rec_ \
|
||||
const * FT_Service_ ## name ; \
|
||||
struct FT_Service_ ## name ## Rec_
|
||||
|
||||
/* */
|
||||
|
||||
/*
|
||||
* The header files containing the services.
|
||||
*/
|
||||
|
||||
#define FT_SERVICE_BDF_H <internal/services/svbdf.h>
|
||||
#define FT_SERVICE_CID_H <internal/services/svcid.h>
|
||||
#define FT_SERVICE_GLYPH_DICT_H <internal/services/svgldict.h>
|
||||
#define FT_SERVICE_GX_VALIDATE_H <internal/services/svgxval.h>
|
||||
#define FT_SERVICE_KERNING_H <internal/services/svkern.h>
|
||||
#define FT_SERVICE_MULTIPLE_MASTERS_H <internal/services/svmm.h>
|
||||
#define FT_SERVICE_OPENTYPE_VALIDATE_H <internal/services/svotval.h>
|
||||
#define FT_SERVICE_PFR_H <internal/services/svpfr.h>
|
||||
#define FT_SERVICE_POSTSCRIPT_CMAPS_H <internal/services/svpscmap.h>
|
||||
#define FT_SERVICE_POSTSCRIPT_INFO_H <internal/services/svpsinfo.h>
|
||||
#define FT_SERVICE_POSTSCRIPT_NAME_H <internal/services/svpostnm.h>
|
||||
#define FT_SERVICE_PROPERTIES_H <internal/services/svprop.h>
|
||||
#define FT_SERVICE_SFNT_H <internal/services/svsfnt.h>
|
||||
#define FT_SERVICE_TRUETYPE_ENGINE_H <internal/services/svtteng.h>
|
||||
#define FT_SERVICE_TT_CMAP_H <internal/services/svttcmap.h>
|
||||
#define FT_SERVICE_WINFNT_H <internal/services/svwinfnt.h>
|
||||
#define FT_SERVICE_XFREE86_NAME_H <internal/services/svxf86nm.h>
|
||||
#define FT_SERVICE_TRUETYPE_GLYF_H <internal/services/svttglyf.h>
|
||||
|
||||
/* */
|
||||
|
||||
FT_END_HEADER
|
||||
|
||||
#endif /* __FTSERV_H__ */
|
||||
|
||||
|
||||
/* END */
|
||||
Loading…
Add table
Add a link
Reference in a new issue