nuclear@0: /***************************************************************************/ nuclear@0: /* */ nuclear@0: /* ftserv.h */ nuclear@0: /* */ nuclear@0: /* The FreeType services (specification only). */ nuclear@0: /* */ nuclear@0: /* Copyright 2003, 2004, 2005, 2006, 2007 by */ nuclear@0: /* David Turner, Robert Wilhelm, and Werner Lemberg. */ nuclear@0: /* */ nuclear@0: /* This file is part of the FreeType project, and may only be used, */ nuclear@0: /* modified, and distributed under the terms of the FreeType project */ nuclear@0: /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ nuclear@0: /* this file you indicate that you have read the license and */ nuclear@0: /* understand and accept it fully. */ nuclear@0: /* */ nuclear@0: /***************************************************************************/ nuclear@0: nuclear@0: /*************************************************************************/ nuclear@0: /* */ nuclear@0: /* Each module can export one or more `services'. Each service is */ nuclear@0: /* identified by a constant string and modeled by a pointer; the latter */ nuclear@0: /* generally corresponds to a structure containing function pointers. */ nuclear@0: /* */ nuclear@0: /* Note that a service's data cannot be a mere function pointer because */ nuclear@0: /* in C it is possible that function pointers might be implemented */ nuclear@0: /* differently than data pointers (e.g. 48 bits instead of 32). */ nuclear@0: /* */ nuclear@0: /*************************************************************************/ nuclear@0: nuclear@0: nuclear@0: #ifndef __FTSERV_H__ nuclear@0: #define __FTSERV_H__ nuclear@0: nuclear@0: nuclear@0: FT_BEGIN_HEADER nuclear@0: nuclear@0: #if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */ nuclear@0: nuclear@0: /* we disable the warning `conditional expression is constant' here */ nuclear@0: /* in order to compile cleanly with the maximum level of warnings */ nuclear@0: #pragma warning( disable : 4127 ) nuclear@0: nuclear@0: #endif /* _MSC_VER */ nuclear@0: nuclear@0: /* nuclear@0: * @macro: nuclear@0: * FT_FACE_FIND_SERVICE nuclear@0: * nuclear@0: * @description: nuclear@0: * This macro is used to look up a service from a face's driver module. nuclear@0: * nuclear@0: * @input: nuclear@0: * face :: nuclear@0: * The source face handle. nuclear@0: * nuclear@0: * id :: nuclear@0: * A string describing the service as defined in the service's nuclear@0: * header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to nuclear@0: * `multi-masters'). It is automatically prefixed with nuclear@0: * `FT_SERVICE_ID_'. nuclear@0: * nuclear@0: * @output: nuclear@0: * ptr :: nuclear@0: * A variable that receives the service pointer. Will be NULL nuclear@0: * if not found. nuclear@0: */ nuclear@0: #ifdef __cplusplus nuclear@0: nuclear@0: #define FT_FACE_FIND_SERVICE( face, ptr, id ) \ nuclear@0: FT_BEGIN_STMNT \ nuclear@0: FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ nuclear@0: FT_Pointer _tmp_ = NULL; \ nuclear@0: FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \ nuclear@0: \ nuclear@0: \ nuclear@0: if ( module->clazz->get_interface ) \ nuclear@0: _tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \ nuclear@0: *_pptr_ = _tmp_; \ nuclear@0: FT_END_STMNT nuclear@0: nuclear@0: #else /* !C++ */ nuclear@0: nuclear@0: #define FT_FACE_FIND_SERVICE( face, ptr, id ) \ nuclear@0: FT_BEGIN_STMNT \ nuclear@0: FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ nuclear@0: FT_Pointer _tmp_ = NULL; \ nuclear@0: \ nuclear@0: if ( module->clazz->get_interface ) \ nuclear@0: _tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \ nuclear@0: ptr = _tmp_; \ nuclear@0: FT_END_STMNT nuclear@0: nuclear@0: #endif /* !C++ */ nuclear@0: nuclear@0: /* nuclear@0: * @macro: nuclear@0: * FT_FACE_FIND_GLOBAL_SERVICE nuclear@0: * nuclear@0: * @description: nuclear@0: * This macro is used to look up a service from all modules. nuclear@0: * nuclear@0: * @input: nuclear@0: * face :: nuclear@0: * The source face handle. nuclear@0: * nuclear@0: * id :: nuclear@0: * A string describing the service as defined in the service's nuclear@0: * header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to nuclear@0: * `multi-masters'). It is automatically prefixed with nuclear@0: * `FT_SERVICE_ID_'. nuclear@0: * nuclear@0: * @output: nuclear@0: * ptr :: nuclear@0: * A variable that receives the service pointer. Will be NULL nuclear@0: * if not found. nuclear@0: */ nuclear@0: #ifdef __cplusplus nuclear@0: nuclear@0: #define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \ nuclear@0: FT_BEGIN_STMNT \ nuclear@0: FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ nuclear@0: FT_Pointer _tmp_; \ nuclear@0: FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \ nuclear@0: \ nuclear@0: \ nuclear@0: _tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \ nuclear@0: *_pptr_ = _tmp_; \ nuclear@0: FT_END_STMNT nuclear@0: nuclear@0: #else /* !C++ */ nuclear@0: nuclear@0: #define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \ nuclear@0: FT_BEGIN_STMNT \ nuclear@0: FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \ nuclear@0: FT_Pointer _tmp_; \ nuclear@0: \ nuclear@0: \ nuclear@0: _tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id ); \ nuclear@0: ptr = _tmp_; \ nuclear@0: FT_END_STMNT nuclear@0: nuclear@0: #endif /* !C++ */ nuclear@0: nuclear@0: nuclear@0: /*************************************************************************/ nuclear@0: /*************************************************************************/ nuclear@0: /***** *****/ nuclear@0: /***** S E R V I C E D E S C R I P T O R S *****/ nuclear@0: /***** *****/ nuclear@0: /*************************************************************************/ nuclear@0: /*************************************************************************/ nuclear@0: nuclear@0: /* nuclear@0: * The following structure is used to _describe_ a given service nuclear@0: * to the library. This is useful to build simple static service lists. nuclear@0: */ nuclear@0: typedef struct FT_ServiceDescRec_ nuclear@0: { nuclear@0: const char* serv_id; /* service name */ nuclear@0: const void* serv_data; /* service pointer/data */ nuclear@0: nuclear@0: } FT_ServiceDescRec; nuclear@0: nuclear@0: typedef const FT_ServiceDescRec* FT_ServiceDesc; nuclear@0: nuclear@0: /*************************************************************************/ nuclear@0: /* */ nuclear@0: /* */ nuclear@0: /* FT_DEFINE_SERVICEDESCREC1 .. FT_DEFINE_SERVICEDESCREC6 */ nuclear@0: /* */ nuclear@0: /* */ nuclear@0: /* Used to initialize an array of FT_ServiceDescRec structs. */ nuclear@0: /* */ nuclear@0: /* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */ nuclear@0: /* to called with a pointer where the allocated array is returned. */ nuclear@0: /* And when it is no longer needed a Destroy function needs */ nuclear@0: /* to be called to release that allocation. */ nuclear@0: /* */ nuclear@0: /* These functions should be manyally called from the pic_init and */ nuclear@0: /* pic_free functions of your module (see FT_DEFINE_MODULE) */ nuclear@0: /* */ nuclear@0: /* When FT_CONFIG_OPTION_PIC is not defined the array will be */ nuclear@0: /* allocated in the global scope (or the scope where the macro */ nuclear@0: /* is used). */ nuclear@0: /* */ nuclear@0: #ifndef FT_CONFIG_OPTION_PIC nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC1(class_, serv_id_1, serv_data_1) \ nuclear@0: static const FT_ServiceDescRec class_[] = \ nuclear@0: { \ nuclear@0: {serv_id_1, serv_data_1}, \ nuclear@0: {NULL, NULL} \ nuclear@0: }; nuclear@0: #define FT_DEFINE_SERVICEDESCREC2(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2) \ nuclear@0: static const FT_ServiceDescRec class_[] = \ nuclear@0: { \ nuclear@0: {serv_id_1, serv_data_1}, \ nuclear@0: {serv_id_2, serv_data_2}, \ nuclear@0: {NULL, NULL} \ nuclear@0: }; nuclear@0: #define FT_DEFINE_SERVICEDESCREC3(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3) \ nuclear@0: static const FT_ServiceDescRec class_[] = \ nuclear@0: { \ nuclear@0: {serv_id_1, serv_data_1}, \ nuclear@0: {serv_id_2, serv_data_2}, \ nuclear@0: {serv_id_3, serv_data_3}, \ nuclear@0: {NULL, NULL} \ nuclear@0: }; nuclear@0: #define FT_DEFINE_SERVICEDESCREC4(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ nuclear@0: serv_id_4, serv_data_4) \ nuclear@0: static const FT_ServiceDescRec class_[] = \ nuclear@0: { \ nuclear@0: {serv_id_1, serv_data_1}, \ nuclear@0: {serv_id_2, serv_data_2}, \ nuclear@0: {serv_id_3, serv_data_3}, \ nuclear@0: {serv_id_4, serv_data_4}, \ nuclear@0: {NULL, NULL} \ nuclear@0: }; nuclear@0: #define FT_DEFINE_SERVICEDESCREC5(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ nuclear@0: serv_id_4, serv_data_4, serv_id_5, serv_data_5) \ nuclear@0: static const FT_ServiceDescRec class_[] = \ nuclear@0: { \ nuclear@0: {serv_id_1, serv_data_1}, \ nuclear@0: {serv_id_2, serv_data_2}, \ nuclear@0: {serv_id_3, serv_data_3}, \ nuclear@0: {serv_id_4, serv_data_4}, \ nuclear@0: {serv_id_5, serv_data_5}, \ nuclear@0: {NULL, NULL} \ nuclear@0: }; nuclear@0: #define FT_DEFINE_SERVICEDESCREC6(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ nuclear@0: serv_id_4, serv_data_4, serv_id_5, serv_data_5, \ nuclear@0: serv_id_6, serv_data_6) \ nuclear@0: static const FT_ServiceDescRec class_[] = \ nuclear@0: { \ nuclear@0: {serv_id_1, serv_data_1}, \ nuclear@0: {serv_id_2, serv_data_2}, \ nuclear@0: {serv_id_3, serv_data_3}, \ nuclear@0: {serv_id_4, serv_data_4}, \ nuclear@0: {serv_id_5, serv_data_5}, \ nuclear@0: {serv_id_6, serv_data_6}, \ nuclear@0: {NULL, NULL} \ nuclear@0: }; nuclear@0: nuclear@0: #else /* FT_CONFIG_OPTION_PIC */ nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC1(class_, serv_id_1, serv_data_1) \ nuclear@0: void \ nuclear@0: FT_Destroy_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec* clazz ) \ nuclear@0: { \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: if ( clazz ) \ nuclear@0: FT_FREE( clazz ); \ nuclear@0: } \ nuclear@0: \ nuclear@0: FT_Error \ nuclear@0: FT_Create_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec** output_class) \ nuclear@0: { \ nuclear@0: FT_ServiceDescRec* clazz; \ nuclear@0: FT_Error error; \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: \ nuclear@0: if ( FT_ALLOC( clazz, sizeof(*clazz)*2 ) ) \ nuclear@0: return error; \ nuclear@0: clazz[0].serv_id = serv_id_1; \ nuclear@0: clazz[0].serv_data = serv_data_1; \ nuclear@0: clazz[1].serv_id = NULL; \ nuclear@0: clazz[1].serv_data = NULL; \ nuclear@0: *output_class = clazz; \ nuclear@0: return FT_Err_Ok; \ nuclear@0: } nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC2(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2) \ nuclear@0: void \ nuclear@0: FT_Destroy_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec* clazz ) \ nuclear@0: { \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: if ( clazz ) \ nuclear@0: FT_FREE( clazz ); \ nuclear@0: } \ nuclear@0: \ nuclear@0: FT_Error \ nuclear@0: FT_Create_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec** output_class) \ nuclear@0: { \ nuclear@0: FT_ServiceDescRec* clazz; \ nuclear@0: FT_Error error; \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: \ nuclear@0: if ( FT_ALLOC( clazz, sizeof(*clazz)*3 ) ) \ nuclear@0: return error; \ nuclear@0: clazz[0].serv_id = serv_id_1; \ nuclear@0: clazz[0].serv_data = serv_data_1; \ nuclear@0: clazz[1].serv_id = serv_id_2; \ nuclear@0: clazz[1].serv_data = serv_data_2; \ nuclear@0: clazz[2].serv_id = NULL; \ nuclear@0: clazz[2].serv_data = NULL; \ nuclear@0: *output_class = clazz; \ nuclear@0: return FT_Err_Ok; \ nuclear@0: } nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC3(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3) \ nuclear@0: void \ nuclear@0: FT_Destroy_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec* clazz ) \ nuclear@0: { \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: if ( clazz ) \ nuclear@0: FT_FREE( clazz ); \ nuclear@0: } \ nuclear@0: \ nuclear@0: FT_Error \ nuclear@0: FT_Create_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec** output_class) \ nuclear@0: { \ nuclear@0: FT_ServiceDescRec* clazz; \ nuclear@0: FT_Error error; \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: \ nuclear@0: if ( FT_ALLOC( clazz, sizeof(*clazz)*4 ) ) \ nuclear@0: return error; \ nuclear@0: clazz[0].serv_id = serv_id_1; \ nuclear@0: clazz[0].serv_data = serv_data_1; \ nuclear@0: clazz[1].serv_id = serv_id_2; \ nuclear@0: clazz[1].serv_data = serv_data_2; \ nuclear@0: clazz[2].serv_id = serv_id_3; \ nuclear@0: clazz[2].serv_data = serv_data_3; \ nuclear@0: clazz[3].serv_id = NULL; \ nuclear@0: clazz[3].serv_data = NULL; \ nuclear@0: *output_class = clazz; \ nuclear@0: return FT_Err_Ok; \ nuclear@0: } nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC4(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ nuclear@0: serv_id_4, serv_data_4) \ nuclear@0: void \ nuclear@0: FT_Destroy_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec* clazz ) \ nuclear@0: { \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: if ( clazz ) \ nuclear@0: FT_FREE( clazz ); \ nuclear@0: } \ nuclear@0: \ nuclear@0: FT_Error \ nuclear@0: FT_Create_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec** output_class) \ nuclear@0: { \ nuclear@0: FT_ServiceDescRec* clazz; \ nuclear@0: FT_Error error; \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: \ nuclear@0: if ( FT_ALLOC( clazz, sizeof(*clazz)*5 ) ) \ nuclear@0: return error; \ nuclear@0: clazz[0].serv_id = serv_id_1; \ nuclear@0: clazz[0].serv_data = serv_data_1; \ nuclear@0: clazz[1].serv_id = serv_id_2; \ nuclear@0: clazz[1].serv_data = serv_data_2; \ nuclear@0: clazz[2].serv_id = serv_id_3; \ nuclear@0: clazz[2].serv_data = serv_data_3; \ nuclear@0: clazz[3].serv_id = serv_id_4; \ nuclear@0: clazz[3].serv_data = serv_data_4; \ nuclear@0: clazz[4].serv_id = NULL; \ nuclear@0: clazz[4].serv_data = NULL; \ nuclear@0: *output_class = clazz; \ nuclear@0: return FT_Err_Ok; \ nuclear@0: } nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC5(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3, serv_id_4, \ nuclear@0: serv_data_4, serv_id_5, serv_data_5) \ nuclear@0: void \ nuclear@0: FT_Destroy_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec* clazz ) \ nuclear@0: { \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: if ( clazz ) \ nuclear@0: FT_FREE( clazz ); \ nuclear@0: } \ nuclear@0: \ nuclear@0: FT_Error \ nuclear@0: FT_Create_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec** output_class) \ nuclear@0: { \ nuclear@0: FT_ServiceDescRec* clazz; \ nuclear@0: FT_Error error; \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: \ nuclear@0: if ( FT_ALLOC( clazz, sizeof(*clazz)*6 ) ) \ nuclear@0: return error; \ nuclear@0: clazz[0].serv_id = serv_id_1; \ nuclear@0: clazz[0].serv_data = serv_data_1; \ nuclear@0: clazz[1].serv_id = serv_id_2; \ nuclear@0: clazz[1].serv_data = serv_data_2; \ nuclear@0: clazz[2].serv_id = serv_id_3; \ nuclear@0: clazz[2].serv_data = serv_data_3; \ nuclear@0: clazz[3].serv_id = serv_id_4; \ nuclear@0: clazz[3].serv_data = serv_data_4; \ nuclear@0: clazz[4].serv_id = serv_id_5; \ nuclear@0: clazz[4].serv_data = serv_data_5; \ nuclear@0: clazz[5].serv_id = NULL; \ nuclear@0: clazz[5].serv_data = NULL; \ nuclear@0: *output_class = clazz; \ nuclear@0: return FT_Err_Ok; \ nuclear@0: } nuclear@0: nuclear@0: #define FT_DEFINE_SERVICEDESCREC6(class_, serv_id_1, serv_data_1, \ nuclear@0: serv_id_2, serv_data_2, serv_id_3, serv_data_3, \ nuclear@0: serv_id_4, serv_data_4, serv_id_5, serv_data_5, \ nuclear@0: serv_id_6, serv_data_6) \ nuclear@0: void \ nuclear@0: FT_Destroy_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec* clazz ) \ nuclear@0: { \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: if ( clazz ) \ nuclear@0: FT_FREE( clazz ); \ nuclear@0: } \ nuclear@0: \ nuclear@0: FT_Error \ nuclear@0: FT_Create_Class_##class_( FT_Library library, \ nuclear@0: FT_ServiceDescRec** output_class) \ nuclear@0: { \ nuclear@0: FT_ServiceDescRec* clazz; \ nuclear@0: FT_Error error; \ nuclear@0: FT_Memory memory = library->memory; \ nuclear@0: \ nuclear@0: if ( FT_ALLOC( clazz, sizeof(*clazz)*7 ) ) \ nuclear@0: return error; \ nuclear@0: clazz[0].serv_id = serv_id_1; \ nuclear@0: clazz[0].serv_data = serv_data_1; \ nuclear@0: clazz[1].serv_id = serv_id_2; \ nuclear@0: clazz[1].serv_data = serv_data_2; \ nuclear@0: clazz[2].serv_id = serv_id_3; \ nuclear@0: clazz[2].serv_data = serv_data_3; \ nuclear@0: clazz[3].serv_id = serv_id_4; \ nuclear@0: clazz[3].serv_data = serv_data_4; \ nuclear@0: clazz[4].serv_id = serv_id_5; \ nuclear@0: clazz[4].serv_data = serv_data_5; \ nuclear@0: clazz[5].serv_id = serv_id_6; \ nuclear@0: clazz[5].serv_data = serv_data_6; \ nuclear@0: clazz[6].serv_id = NULL; \ nuclear@0: clazz[6].serv_data = NULL; \ nuclear@0: *output_class = clazz; \ nuclear@0: return FT_Err_Ok; \ nuclear@0: } nuclear@0: #endif /* FT_CONFIG_OPTION_PIC */ nuclear@0: nuclear@0: /* nuclear@0: * Parse a list of FT_ServiceDescRec descriptors and look for nuclear@0: * a specific service by ID. Note that the last element in the nuclear@0: * array must be { NULL, NULL }, and that the function should nuclear@0: * return NULL if the service isn't available. nuclear@0: * nuclear@0: * This function can be used by modules to implement their nuclear@0: * `get_service' method. nuclear@0: */ nuclear@0: FT_BASE( FT_Pointer ) nuclear@0: ft_service_list_lookup( FT_ServiceDesc service_descriptors, nuclear@0: const char* service_id ); nuclear@0: nuclear@0: nuclear@0: /*************************************************************************/ nuclear@0: /*************************************************************************/ nuclear@0: /***** *****/ nuclear@0: /***** S E R V I C E S C A C H E *****/ nuclear@0: /***** *****/ nuclear@0: /*************************************************************************/ nuclear@0: /*************************************************************************/ nuclear@0: nuclear@0: /* nuclear@0: * This structure is used to store a cache for several frequently used nuclear@0: * services. It is the type of `face->internal->services'. You nuclear@0: * should only use FT_FACE_LOOKUP_SERVICE to access it. nuclear@0: * nuclear@0: * All fields should have the type FT_Pointer to relax compilation nuclear@0: * dependencies. We assume the developer isn't completely stupid. nuclear@0: * nuclear@0: * Each field must be named `service_XXXX' where `XXX' corresponds to nuclear@0: * the correct FT_SERVICE_ID_XXXX macro. See the definition of nuclear@0: * FT_FACE_LOOKUP_SERVICE below how this is implemented. nuclear@0: * nuclear@0: */ nuclear@0: typedef struct FT_ServiceCacheRec_ nuclear@0: { nuclear@0: FT_Pointer service_POSTSCRIPT_FONT_NAME; nuclear@0: FT_Pointer service_MULTI_MASTERS; nuclear@0: FT_Pointer service_GLYPH_DICT; nuclear@0: FT_Pointer service_PFR_METRICS; nuclear@0: FT_Pointer service_WINFNT; nuclear@0: nuclear@0: } FT_ServiceCacheRec, *FT_ServiceCache; nuclear@0: nuclear@0: nuclear@0: /* nuclear@0: * A magic number used within the services cache. nuclear@0: */ nuclear@0: #define FT_SERVICE_UNAVAILABLE ((FT_Pointer)-2) /* magic number */ nuclear@0: nuclear@0: nuclear@0: /* nuclear@0: * @macro: nuclear@0: * FT_FACE_LOOKUP_SERVICE nuclear@0: * nuclear@0: * @description: nuclear@0: * This macro is used to lookup a service from a face's driver module nuclear@0: * using its cache. nuclear@0: * nuclear@0: * @input: nuclear@0: * face:: nuclear@0: * The source face handle containing the cache. nuclear@0: * nuclear@0: * field :: nuclear@0: * The field name in the cache. nuclear@0: * nuclear@0: * id :: nuclear@0: * The service ID. nuclear@0: * nuclear@0: * @output: nuclear@0: * ptr :: nuclear@0: * A variable receiving the service data. NULL if not available. nuclear@0: */ nuclear@0: #ifdef __cplusplus nuclear@0: nuclear@0: #define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \ nuclear@0: FT_BEGIN_STMNT \ nuclear@0: FT_Pointer svc; \ nuclear@0: FT_Pointer* Pptr = (FT_Pointer*)&(ptr); \ nuclear@0: \ nuclear@0: \ nuclear@0: svc = FT_FACE( face )->internal->services. service_ ## id; \ nuclear@0: if ( svc == FT_SERVICE_UNAVAILABLE ) \ nuclear@0: svc = NULL; \ nuclear@0: else if ( svc == NULL ) \ nuclear@0: { \ nuclear@0: FT_FACE_FIND_SERVICE( face, svc, id ); \ nuclear@0: \ nuclear@0: FT_FACE( face )->internal->services. service_ ## id = \ nuclear@0: (FT_Pointer)( svc != NULL ? svc \ nuclear@0: : FT_SERVICE_UNAVAILABLE ); \ nuclear@0: } \ nuclear@0: *Pptr = svc; \ nuclear@0: FT_END_STMNT nuclear@0: nuclear@0: #else /* !C++ */ nuclear@0: nuclear@0: #define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \ nuclear@0: FT_BEGIN_STMNT \ nuclear@0: FT_Pointer svc; \ nuclear@0: \ nuclear@0: \ nuclear@0: svc = FT_FACE( face )->internal->services. service_ ## id; \ nuclear@0: if ( svc == FT_SERVICE_UNAVAILABLE ) \ nuclear@0: svc = NULL; \ nuclear@0: else if ( svc == NULL ) \ nuclear@0: { \ nuclear@0: FT_FACE_FIND_SERVICE( face, svc, id ); \ nuclear@0: \ nuclear@0: FT_FACE( face )->internal->services. service_ ## id = \ nuclear@0: (FT_Pointer)( svc != NULL ? svc \ nuclear@0: : FT_SERVICE_UNAVAILABLE ); \ nuclear@0: } \ nuclear@0: ptr = svc; \ nuclear@0: FT_END_STMNT nuclear@0: nuclear@0: #endif /* !C++ */ nuclear@0: nuclear@0: /* nuclear@0: * A macro used to define new service structure types. nuclear@0: */ nuclear@0: nuclear@0: #define FT_DEFINE_SERVICE( name ) \ nuclear@0: typedef struct FT_Service_ ## name ## Rec_ \ nuclear@0: FT_Service_ ## name ## Rec ; \ nuclear@0: typedef struct FT_Service_ ## name ## Rec_ \ nuclear@0: const * FT_Service_ ## name ; \ nuclear@0: struct FT_Service_ ## name ## Rec_ nuclear@0: nuclear@0: /* */ nuclear@0: nuclear@0: /* nuclear@0: * The header files containing the services. nuclear@0: */ nuclear@0: nuclear@0: #define FT_SERVICE_BDF_H nuclear@0: #define FT_SERVICE_CID_H nuclear@0: #define FT_SERVICE_GLYPH_DICT_H nuclear@0: #define FT_SERVICE_GX_VALIDATE_H nuclear@0: #define FT_SERVICE_KERNING_H nuclear@0: #define FT_SERVICE_MULTIPLE_MASTERS_H nuclear@0: #define FT_SERVICE_OPENTYPE_VALIDATE_H nuclear@0: #define FT_SERVICE_PFR_H nuclear@0: #define FT_SERVICE_POSTSCRIPT_CMAPS_H nuclear@0: #define FT_SERVICE_POSTSCRIPT_INFO_H nuclear@0: #define FT_SERVICE_POSTSCRIPT_NAME_H nuclear@0: #define FT_SERVICE_SFNT_H nuclear@0: #define FT_SERVICE_TRUETYPE_ENGINE_H nuclear@0: #define FT_SERVICE_TT_CMAP_H nuclear@0: #define FT_SERVICE_WINFNT_H nuclear@0: #define FT_SERVICE_XFREE86_NAME_H nuclear@0: #define FT_SERVICE_TRUETYPE_GLYF_H nuclear@0: nuclear@0: /* */ nuclear@0: nuclear@0: FT_END_HEADER nuclear@0: nuclear@0: #endif /* __FTSERV_H__ */ nuclear@0: nuclear@0: nuclear@0: /* END */