Edit
kc3-lang/freetype/src/type1/t1driver.c
Werner Lemberg
- src/type1/t1driver.c
-
/***************************************************************************/ /* */ /* t1driver.c */ /* */ /* Type 1 driver interface (body). */ /* */ /* Copyright 1996-2001, 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 "t1driver.h" #include "t1gload.h" #include "t1load.h" #include "t1errors.h" #ifndef T1_CONFIG_OPTION_NO_AFM #include "t1afm.h" #endif #include FT_INTERNAL_DEBUG_H #include FT_INTERNAL_STREAM_H #include FT_INTERNAL_POSTSCRIPT_NAMES_H #include FT_SERVICE_MULTIPLE_MASTERS_H #include FT_SERVICE_GLYPH_DICT_H #include FT_SERVICE_XFREE86_NAME_H #include FT_SERVICE_POSTSCRIPT_NAME_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 trace_t1driver /* * GLYPH DICT SERVICE * */ static FT_Error t1_get_glyph_name( T1_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max ) { FT_String* gname; gname = face->type1.glyph_names[glyph_index]; if ( buffer_max > 0 ) { FT_UInt len = (FT_UInt)( ft_strlen( gname ) ); if (len >= buffer_max) len = buffer_max - 1; FT_MEM_COPY( buffer, gname, len ); ((FT_Byte*)buffer)[len] = 0; } return T1_Err_Ok; } static FT_UInt t1_get_name_index( T1_Face face, FT_String* glyph_name ) { FT_Int i; FT_String* gname; for ( i = 0; i < face->type1.num_glyphs; i++ ) { gname = face->type1.glyph_names[i]; if ( !ft_strcmp( glyph_name, gname ) ) return (FT_UInt)i; } return 0; } static const FT_Service_GlyphDictRec t1_service_glyph_dict = { (FT_GlyphDict_GetNameFunc) t1_get_glyph_name, (FT_GlyphDict_NameIndexFunc)t1_get_name_index }; /* * POSTSCRIPT NAME SERVICE * */ static const char* t1_get_ps_name( T1_Face face ) { return (const char*) face->type1.font_name; } static const FT_Service_PsNameRec t1_service_ps_name = { (FT_PsName_GetFunc) &t1_get_ps_name }; /* * MULTIPLE MASTERS SERVICE * */ #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT static const FT_Service_MultiMastersRec t1_service_multi_masters = { (FT_Get_MM_Func) T1_Get_Multi_Master, (FT_Set_MM_Design_Func)T1_Set_MM_Design, (FT_Set_MM_Blend_Func) T1_Set_MM_Blend }; #endif /* * SERVICE LIST * */ static const FT_ServiceDescRec t1_services[] = { { FT_SERVICE_ID_POSTSCRIPT_NAME, &t1_service_ps_name }, { FT_SERVICE_ID_GLYPH_DICT, &t1_service_glyph_dict }, { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_1 }, #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT { FT_SERVICE_ID_MULTI_MASTERS, &t1_service_multi_masters }, #endif { NULL, NULL } }; static FT_Module_Interface Get_Interface( FT_Driver driver, const FT_String* t1_interface ) { FT_UNUSED( driver ); FT_UNUSED( t1_interface ); return ft_service_list_lookup( t1_services, t1_interface ); } #ifndef T1_CONFIG_OPTION_NO_AFM /*************************************************************************/ /* */ /* <Function> */ /* Get_Kerning */ /* */ /* <Description> */ /* A driver method used to return the kerning vector between two */ /* glyphs of the same face. */ /* */ /* <Input> */ /* face :: A handle to the source face object. */ /* */ /* left_glyph :: The index of the left glyph in the kern pair. */ /* */ /* right_glyph :: The index of the right glyph in the kern pair. */ /* */ /* <Output> */ /* kerning :: The kerning vector. This is in font units for */ /* scalable formats, and in pixels for fixed-sizes */ /* formats. */ /* */ /* <Return> */ /* FreeType error code. 0 means success. */ /* */ /* <Note> */ /* Only horizontal layouts (left-to-right & right-to-left) are */ /* supported by this function. Other layouts, or more sophisticated */ /* kernings are out of scope of this method (the basic driver */ /* interface is meant to be simple). */ /* */ /* They can be implemented by format-specific interfaces. */ /* */ static FT_Error Get_Kerning( T1_Face face, FT_UInt left_glyph, FT_UInt right_glyph, FT_Vector* kerning ) { T1_AFM* afm; kerning->x = 0; kerning->y = 0; afm = (T1_AFM*)face->afm_data; if ( afm ) T1_Get_Kerning( afm, left_glyph, right_glyph, kerning ); return T1_Err_Ok; } #endif /* T1_CONFIG_OPTION_NO_AFM */ FT_CALLBACK_TABLE_DEF const FT_Driver_ClassRec t1_driver_class = { { FT_MODULE_FONT_DRIVER | FT_MODULE_DRIVER_SCALABLE | FT_MODULE_DRIVER_HAS_HINTER, sizeof( FT_DriverRec ), "type1", 0x10000L, 0x20000L, 0, /* format interface */ (FT_Module_Constructor)T1_Driver_Init, (FT_Module_Destructor) T1_Driver_Done, (FT_Module_Requester) Get_Interface, }, sizeof( T1_FaceRec ), sizeof( T1_SizeRec ), sizeof( T1_GlyphSlotRec ), (FT_Face_InitFunc) T1_Face_Init, (FT_Face_DoneFunc) T1_Face_Done, (FT_Size_InitFunc) T1_Size_Init, (FT_Size_DoneFunc) T1_Size_Done, (FT_Slot_InitFunc) T1_GlyphSlot_Init, (FT_Slot_DoneFunc) T1_GlyphSlot_Done, (FT_Size_ResetPointsFunc) T1_Size_Reset, (FT_Size_ResetPixelsFunc) T1_Size_Reset, (FT_Slot_LoadFunc) T1_Load_Glyph, #ifdef T1_CONFIG_OPTION_NO_AFM (FT_Face_GetKerningFunc) 0, (FT_Face_AttachFunc) 0, #else (FT_Face_GetKerningFunc) Get_Kerning, (FT_Face_AttachFunc) T1_Read_AFM, #endif (FT_Face_GetAdvancesFunc) 0 }; /* END */