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kc3-lang/freetype/src/cff/cffdrivr.c
Werner Lemberg
- src/cff/cffdrivr.c
-
/**************************************************************************** * * cffdrivr.c * * OpenType font driver implementation (body). * * Copyright (C) 1996-2023 by * David Turner, Robert Wilhelm, Werner Lemberg, and Dominik Röttsches. * * 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 <freetype/freetype.h> #include <freetype/internal/ftdebug.h> #include <freetype/internal/ftstream.h> #include <freetype/internal/sfnt.h> #include <freetype/internal/psaux.h> #include <freetype/internal/ftpsprop.h> #include <freetype/internal/services/svcid.h> #include <freetype/internal/services/svpsinfo.h> #include <freetype/internal/services/svpostnm.h> #include <freetype/internal/services/svttcmap.h> #include <freetype/internal/services/svcfftl.h> #include "cffdrivr.h" #include "cffgload.h" #include "cffload.h" #include "cffcmap.h" #include "cffparse.h" #include "cffobjs.h" #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT #include <freetype/internal/services/svmm.h> #include <freetype/internal/services/svmetric.h> #endif #include "cfferrs.h" #include <freetype/internal/services/svfntfmt.h> #include <freetype/internal/services/svgldict.h> #include <freetype/internal/services/svprop.h> #include <freetype/ftdriver.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 cffdriver /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** ****/ /**** F A C E S ****/ /**** ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /************************************************************************** * * @Function: * cff_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. */ FT_CALLBACK_DEF( FT_Error ) cff_get_kerning( FT_Face ttface, /* TT_Face */ FT_UInt left_glyph, FT_UInt right_glyph, FT_Vector* kerning ) { TT_Face face = (TT_Face)ttface; SFNT_Service sfnt = (SFNT_Service)face->sfnt; kerning->x = 0; kerning->y = 0; if ( sfnt ) kerning->x = sfnt->get_kerning( face, left_glyph, right_glyph ); return FT_Err_Ok; } /************************************************************************** * * @Function: * cff_glyph_load * * @Description: * A driver method used to load a glyph within a given glyph slot. * * @Input: * slot :: * A handle to the target slot object where the glyph * will be loaded. * * size :: * A handle to the source face size at which the glyph * must be scaled, loaded, etc. * * glyph_index :: * The index of the glyph in the font file. * * load_flags :: * A flag indicating what to load for this glyph. The * FT_LOAD_??? constants can be used to control the * glyph loading process (e.g., whether the outline * should be scaled, whether to load bitmaps or not, * whether to hint the outline, etc). * * @Return: * FreeType error code. 0 means success. */ FT_CALLBACK_DEF( FT_Error ) cff_glyph_load( FT_GlyphSlot cffslot, /* CFF_GlyphSlot */ FT_Size cffsize, /* CFF_Size */ FT_UInt glyph_index, FT_Int32 load_flags ) { FT_Error error; CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; CFF_Size size = (CFF_Size)cffsize; if ( !slot ) return FT_THROW( Invalid_Slot_Handle ); FT_TRACE1(( "cff_glyph_load: glyph index %d\n", glyph_index )); /* check whether we want a scaled outline or bitmap */ if ( !size ) load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; /* reset the size object if necessary */ if ( load_flags & FT_LOAD_NO_SCALE ) size = NULL; if ( size ) { /* these two objects must have the same parent */ if ( cffsize->face != cffslot->face ) return FT_THROW( Invalid_Face_Handle ); } /* now load the glyph outline if necessary */ error = cff_slot_load( slot, size, glyph_index, load_flags ); /* force drop-out mode to 2 - irrelevant now */ /* slot->outline.dropout_mode = 2; */ return error; } FT_CALLBACK_DEF( FT_Error ) cff_get_advances( FT_Face face, FT_UInt start, FT_UInt count, FT_Int32 flags, FT_Fixed* advances ) { FT_UInt nn; FT_Error error = FT_Err_Ok; FT_GlyphSlot slot = face->glyph; if ( FT_IS_SFNT( face ) ) { /* OpenType 1.7 mandates that the data from `hmtx' table be used; */ /* it is no longer necessary that those values are identical to */ /* the values in the `CFF' table */ TT_Face ttface = (TT_Face)face; FT_Short dummy; if ( flags & FT_LOAD_VERTICAL_LAYOUT ) { #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT /* no fast retrieval for blended MM fonts without VVAR table */ if ( ( FT_IS_NAMED_INSTANCE( face ) || FT_IS_VARIATION( face ) ) && !( ttface->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) ) return FT_THROW( Unimplemented_Feature ); #endif /* check whether we have data from the `vmtx' table at all; */ /* otherwise we extract the info from the CFF glyphstrings */ /* (instead of synthesizing a global value using the `OS/2' */ /* table) */ if ( !ttface->vertical_info ) goto Missing_Table; for ( nn = 0; nn < count; nn++ ) { FT_UShort ah; ( (SFNT_Service)ttface->sfnt )->get_metrics( ttface, 1, start + nn, &dummy, &ah ); FT_TRACE5(( " idx %d: advance height %d font unit%s\n", start + nn, ah, ah == 1 ? "" : "s" )); advances[nn] = ah; } } else { #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT /* no fast retrieval for blended MM fonts without HVAR table */ if ( ( FT_IS_NAMED_INSTANCE( face ) || FT_IS_VARIATION( face ) ) && !( ttface->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) ) return FT_THROW( Unimplemented_Feature ); #endif /* check whether we have data from the `hmtx' table at all */ if ( !ttface->horizontal.number_Of_HMetrics ) goto Missing_Table; for ( nn = 0; nn < count; nn++ ) { FT_UShort aw; ( (SFNT_Service)ttface->sfnt )->get_metrics( ttface, 0, start + nn, &dummy, &aw ); FT_TRACE5(( " idx %d: advance width %d font unit%s\n", start + nn, aw, aw == 1 ? "" : "s" )); advances[nn] = aw; } } return error; } Missing_Table: flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY; for ( nn = 0; nn < count; nn++ ) { error = cff_glyph_load( slot, face->size, start + nn, flags ); if ( error ) break; advances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT ) ? slot->linearVertAdvance : slot->linearHoriAdvance; } return error; } /* * GLYPH DICT SERVICE * */ static FT_Error cff_get_glyph_name( CFF_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max ) { CFF_Font font = (CFF_Font)face->extra.data; FT_String* gname; FT_UShort sid; FT_Error error; /* CFF2 table does not have glyph names; */ /* we need to use `post' table method */ if ( font->version_major == 2 ) { FT_Library library = FT_FACE_LIBRARY( face ); FT_Module sfnt_module = FT_Get_Module( library, "sfnt" ); FT_Service_GlyphDict service = (FT_Service_GlyphDict)ft_module_get_service( sfnt_module, FT_SERVICE_ID_GLYPH_DICT, 0 ); if ( service && service->get_name ) return service->get_name( FT_FACE( face ), glyph_index, buffer, buffer_max ); else { FT_ERROR(( "cff_get_glyph_name:" " cannot get glyph name from a CFF2 font\n" )); FT_ERROR(( " " " without the `psnames' module\n" )); error = FT_THROW( Missing_Module ); goto Exit; } } if ( !font->psnames ) { FT_ERROR(( "cff_get_glyph_name:" " cannot get glyph name from CFF & CEF fonts\n" )); FT_ERROR(( " " " without the `psnames' module\n" )); error = FT_THROW( Missing_Module ); goto Exit; } /* first, locate the sid in the charset table */ sid = font->charset.sids[glyph_index]; /* now, lookup the name itself */ gname = cff_index_get_sid_string( font, sid ); if ( gname ) FT_STRCPYN( buffer, gname, buffer_max ); error = FT_Err_Ok; Exit: return error; } static FT_UInt cff_get_name_index( CFF_Face face, const FT_String* glyph_name ) { CFF_Font cff; CFF_Charset charset; FT_Service_PsCMaps psnames; FT_String* name; FT_UShort sid; FT_UInt i; cff = (CFF_FontRec *)face->extra.data; charset = &cff->charset; /* CFF2 table does not have glyph names; */ /* we need to use `post' table method */ if ( cff->version_major == 2 ) { FT_Library library = FT_FACE_LIBRARY( face ); FT_Module sfnt_module = FT_Get_Module( library, "sfnt" ); FT_Service_GlyphDict service = (FT_Service_GlyphDict)ft_module_get_service( sfnt_module, FT_SERVICE_ID_GLYPH_DICT, 0 ); if ( service && service->name_index ) return service->name_index( FT_FACE( face ), glyph_name ); else { FT_ERROR(( "cff_get_name_index:" " cannot get glyph index from a CFF2 font\n" )); FT_ERROR(( " " " without the `psnames' module\n" )); return 0; } } FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); if ( !psnames ) return 0; for ( i = 0; i < cff->num_glyphs; i++ ) { sid = charset->sids[i]; if ( sid > 390 ) name = cff_index_get_string( cff, sid - 391 ); else name = (FT_String *)psnames->adobe_std_strings( sid ); if ( !name ) continue; if ( !ft_strcmp( glyph_name, name ) ) return i; } return 0; } FT_DEFINE_SERVICE_GLYPHDICTREC( cff_service_glyph_dict, (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, /* get_name */ (FT_GlyphDict_NameIndexFunc)cff_get_name_index /* name_index */ ) /* * POSTSCRIPT INFO SERVICE * */ static FT_Int cff_ps_has_glyph_names( FT_Face face ) { return ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) > 0; } static FT_Error cff_ps_get_font_info( CFF_Face face, PS_FontInfoRec* afont_info ) { CFF_Font cff = (CFF_Font)face->extra.data; FT_Error error = FT_Err_Ok; if ( cff && !cff->font_info ) { CFF_FontRecDict dict = &cff->top_font.font_dict; FT_Memory memory = face->root.memory; PS_FontInfoRec* font_info = NULL; if ( FT_QNEW( font_info ) ) goto Fail; font_info->version = cff_index_get_sid_string( cff, dict->version ); font_info->notice = cff_index_get_sid_string( cff, dict->notice ); font_info->full_name = cff_index_get_sid_string( cff, dict->full_name ); font_info->family_name = cff_index_get_sid_string( cff, dict->family_name ); font_info->weight = cff_index_get_sid_string( cff, dict->weight ); font_info->italic_angle = dict->italic_angle; font_info->is_fixed_pitch = dict->is_fixed_pitch; font_info->underline_position = (FT_Short)dict->underline_position; font_info->underline_thickness = (FT_UShort)dict->underline_thickness; cff->font_info = font_info; } if ( cff ) *afont_info = *cff->font_info; Fail: return error; } static FT_Error cff_ps_get_font_extra( CFF_Face face, PS_FontExtraRec* afont_extra ) { CFF_Font cff = (CFF_Font)face->extra.data; FT_Error error = FT_Err_Ok; if ( cff && !cff->font_extra ) { CFF_FontRecDict dict = &cff->top_font.font_dict; FT_Memory memory = face->root.memory; PS_FontExtraRec* font_extra = NULL; FT_String* embedded_postscript; if ( FT_QNEW( font_extra ) ) goto Fail; font_extra->fs_type = 0U; embedded_postscript = cff_index_get_sid_string( cff, dict->embedded_postscript ); if ( embedded_postscript ) { FT_String* start_fstype; FT_String* start_def; /* Identify the XYZ integer in `/FSType XYZ def' substring. */ if ( ( start_fstype = ft_strstr( embedded_postscript, "/FSType" ) ) != NULL && ( start_def = ft_strstr( start_fstype + sizeof ( "/FSType" ) - 1, "def" ) ) != NULL ) { FT_String* s; for ( s = start_fstype + sizeof ( "/FSType" ) - 1; s != start_def; s++ ) { if ( *s >= '0' && *s <= '9' ) { if ( font_extra->fs_type >= ( FT_USHORT_MAX - 9 ) / 10 ) { /* Overflow - ignore the FSType value. */ font_extra->fs_type = 0U; break; } font_extra->fs_type *= 10; font_extra->fs_type += (FT_UShort)( *s - '0' ); } else if ( *s != ' ' && *s != '\n' && *s != '\r' ) { /* Non-whitespace character between `/FSType' and next `def' */ /* - ignore the FSType value. */ font_extra->fs_type = 0U; break; } } } } cff->font_extra = font_extra; } if ( cff ) *afont_extra = *cff->font_extra; Fail: return error; } FT_DEFINE_SERVICE_PSINFOREC( cff_service_ps_info, (PS_GetFontInfoFunc) cff_ps_get_font_info, /* ps_get_font_info */ (PS_GetFontExtraFunc) cff_ps_get_font_extra, /* ps_get_font_extra */ (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, /* ps_has_glyph_names */ /* unsupported with CFF fonts */ (PS_GetFontPrivateFunc)NULL, /* ps_get_font_private */ /* not implemented */ (PS_GetFontValueFunc) NULL /* ps_get_font_value */ ) /* * POSTSCRIPT NAME SERVICE * */ static const char* cff_get_ps_name( CFF_Face face ) { CFF_Font cff = (CFF_Font)face->extra.data; SFNT_Service sfnt = (SFNT_Service)face->sfnt; /* following the OpenType specification 1.7, we return the name stored */ /* in the `name' table for a CFF wrapped into an SFNT container */ if ( FT_IS_SFNT( FT_FACE( face ) ) && sfnt ) { FT_Library library = FT_FACE_LIBRARY( face ); FT_Module sfnt_module = FT_Get_Module( library, "sfnt" ); FT_Service_PsFontName service = (FT_Service_PsFontName)ft_module_get_service( sfnt_module, FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, 0 ); if ( service && service->get_ps_font_name ) return service->get_ps_font_name( FT_FACE( face ) ); } return (const char*)cff->font_name; } FT_DEFINE_SERVICE_PSFONTNAMEREC( cff_service_ps_name, (FT_PsName_GetFunc)cff_get_ps_name /* get_ps_font_name */ ) /* * TT CMAP INFO * * If the charmap is a synthetic Unicode encoding cmap or * a Type 1 standard (or expert) encoding cmap, hide TT CMAP INFO * service defined in SFNT module. * * Otherwise call the service function in the sfnt module. * */ static FT_Error cff_get_cmap_info( FT_CharMap charmap, TT_CMapInfo *cmap_info ) { FT_CMap cmap = FT_CMAP( charmap ); FT_Error error = FT_Err_Ok; FT_Face face = FT_CMAP_FACE( cmap ); FT_Library library = FT_FACE_LIBRARY( face ); if ( cmap->clazz != &cff_cmap_encoding_class_rec && cmap->clazz != &cff_cmap_unicode_class_rec ) { FT_Module sfnt = FT_Get_Module( library, "sfnt" ); FT_Service_TTCMaps service = (FT_Service_TTCMaps)ft_module_get_service( sfnt, FT_SERVICE_ID_TT_CMAP, 0 ); if ( service && service->get_cmap_info ) error = service->get_cmap_info( charmap, cmap_info ); } else error = FT_THROW( Invalid_CharMap_Format ); return error; } FT_DEFINE_SERVICE_TTCMAPSREC( cff_service_get_cmap_info, (TT_CMap_Info_GetFunc)cff_get_cmap_info /* get_cmap_info */ ) /* * CID INFO SERVICE * */ static FT_Error cff_get_ros( CFF_Face face, const char* *registry, const char* *ordering, FT_Int *supplement ) { FT_Error error = FT_Err_Ok; CFF_Font cff = (CFF_Font)face->extra.data; if ( cff ) { CFF_FontRecDict dict = &cff->top_font.font_dict; if ( dict->cid_registry == 0xFFFFU ) { error = FT_THROW( Invalid_Argument ); goto Fail; } if ( registry ) { if ( !cff->registry ) cff->registry = cff_index_get_sid_string( cff, dict->cid_registry ); *registry = cff->registry; } if ( ordering ) { if ( !cff->ordering ) cff->ordering = cff_index_get_sid_string( cff, dict->cid_ordering ); *ordering = cff->ordering; } /* * XXX: According to Adobe TechNote #5176, the supplement in CFF * can be a real number. We truncate it to fit public API * since freetype-2.3.6. */ if ( supplement ) { if ( dict->cid_supplement < FT_INT_MIN || dict->cid_supplement > FT_INT_MAX ) FT_TRACE1(( "cff_get_ros: too large supplement %ld is truncated\n", dict->cid_supplement )); *supplement = (FT_Int)dict->cid_supplement; } } Fail: return error; } static FT_Error cff_get_is_cid( CFF_Face face, FT_Bool *is_cid ) { FT_Error error = FT_Err_Ok; CFF_Font cff = (CFF_Font)face->extra.data; *is_cid = 0; if ( cff ) { CFF_FontRecDict dict = &cff->top_font.font_dict; if ( dict->cid_registry != 0xFFFFU ) *is_cid = 1; } return error; } static FT_Error cff_get_cid_from_glyph_index( CFF_Face face, FT_UInt glyph_index, FT_UInt *cid ) { FT_Error error = FT_Err_Ok; CFF_Font cff; cff = (CFF_Font)face->extra.data; if ( cff ) { FT_UInt c; CFF_FontRecDict dict = &cff->top_font.font_dict; if ( dict->cid_registry == 0xFFFFU ) { error = FT_THROW( Invalid_Argument ); goto Fail; } if ( glyph_index >= cff->num_glyphs ) { error = FT_THROW( Invalid_Argument ); goto Fail; } c = cff->charset.sids[glyph_index]; if ( cid ) *cid = c; } Fail: return error; } FT_DEFINE_SERVICE_CIDREC( cff_service_cid_info, (FT_CID_GetRegistryOrderingSupplementFunc) cff_get_ros, /* get_ros */ (FT_CID_GetIsInternallyCIDKeyedFunc) cff_get_is_cid, /* get_is_cid */ (FT_CID_GetCIDFromGlyphIndexFunc) cff_get_cid_from_glyph_index /* get_cid_from_glyph_index */ ) /* * PROPERTY SERVICE * */ FT_DEFINE_SERVICE_PROPERTIESREC( cff_service_properties, (FT_Properties_SetFunc)ps_property_set, /* set_property */ (FT_Properties_GetFunc)ps_property_get ) /* get_property */ #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT /* * MULTIPLE MASTER SERVICE * */ static FT_Error cff_set_mm_blend( CFF_Face face, FT_UInt num_coords, FT_Fixed* coords ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->set_mm_blend( FT_FACE( face ), num_coords, coords ); } static FT_Error cff_get_mm_blend( CFF_Face face, FT_UInt num_coords, FT_Fixed* coords ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->get_mm_blend( FT_FACE( face ), num_coords, coords ); } static FT_Error cff_set_mm_weightvector( CFF_Face face, FT_UInt len, FT_Fixed* weightvector ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->set_mm_weightvector( FT_FACE( face ), len, weightvector ); } static FT_Error cff_get_mm_weightvector( CFF_Face face, FT_UInt* len, FT_Fixed* weightvector ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->get_mm_weightvector( FT_FACE( face ), len, weightvector ); } static FT_Error cff_get_mm_var( CFF_Face face, FT_MM_Var* *master ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->get_mm_var( FT_FACE( face ), master ); } static FT_Error cff_set_var_design( CFF_Face face, FT_UInt num_coords, FT_Fixed* coords ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->set_var_design( FT_FACE( face ), num_coords, coords ); } static FT_Error cff_get_var_design( CFF_Face face, FT_UInt num_coords, FT_Fixed* coords ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->get_var_design( FT_FACE( face ), num_coords, coords ); } static FT_Error cff_set_instance( CFF_Face face, FT_UInt instance_index ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->set_instance( FT_FACE( face ), instance_index ); } static FT_Error cff_load_item_variation_store( CFF_Face face, FT_ULong offset, GX_ItemVarStore itemStore ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->load_item_var_store( FT_FACE(face), offset, itemStore ); } static FT_Error cff_load_delta_set_index_mapping( CFF_Face face, FT_ULong offset, GX_DeltaSetIdxMap map, GX_ItemVarStore itemStore, FT_ULong table_len ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->load_delta_set_idx_map( FT_FACE( face ), offset, map, itemStore, table_len ); } static FT_Int cff_get_item_delta( CFF_Face face, GX_ItemVarStore itemStore, FT_UInt outerIndex, FT_UInt innerIndex ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; return mm->get_item_delta( FT_FACE( face ), itemStore, outerIndex, innerIndex ); } static void cff_done_item_variation_store( CFF_Face face, GX_ItemVarStore itemStore ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; mm->done_item_var_store( FT_FACE( face ), itemStore ); } static void cff_done_delta_set_index_map( CFF_Face face, GX_DeltaSetIdxMap deltaSetIdxMap ) { FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; mm->done_delta_set_idx_map( FT_FACE ( face ), deltaSetIdxMap ); } FT_DEFINE_SERVICE_MULTIMASTERSREC( cff_service_multi_masters, (FT_Get_MM_Func) NULL, /* get_mm */ (FT_Set_MM_Design_Func) NULL, /* set_mm_design */ (FT_Set_MM_Blend_Func) cff_set_mm_blend, /* set_mm_blend */ (FT_Get_MM_Blend_Func) cff_get_mm_blend, /* get_mm_blend */ (FT_Get_MM_Var_Func) cff_get_mm_var, /* get_mm_var */ (FT_Set_Var_Design_Func)cff_set_var_design, /* set_var_design */ (FT_Get_Var_Design_Func)cff_get_var_design, /* get_var_design */ (FT_Set_Instance_Func) cff_set_instance, /* set_instance */ (FT_Set_MM_WeightVector_Func) cff_set_mm_weightvector, /* set_mm_weightvector */ (FT_Get_MM_WeightVector_Func) cff_get_mm_weightvector, /* get_mm_weightvector */ (FT_Var_Load_Delta_Set_Idx_Map_Func) cff_load_delta_set_index_mapping, /* load_delta_set_idx_map */ (FT_Var_Load_Item_Var_Store_Func) cff_load_item_variation_store, /* load_item_variation_store */ (FT_Var_Get_Item_Delta_Func) cff_get_item_delta, /* get_item_delta */ (FT_Var_Done_Item_Var_Store_Func) cff_done_item_variation_store, /* done_item_variation_store */ (FT_Var_Done_Delta_Set_Idx_Map_Func) cff_done_delta_set_index_map, /* done_delta_set_index_map */ (FT_Get_Var_Blend_Func) cff_get_var_blend, /* get_var_blend */ (FT_Done_Blend_Func) cff_done_blend /* done_blend */ ) /* * METRICS VARIATIONS SERVICE * */ static FT_Error cff_hadvance_adjust( CFF_Face face, FT_UInt gindex, FT_Int *avalue ) { FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var; return var->hadvance_adjust( FT_FACE( face ), gindex, avalue ); } static void cff_metrics_adjust( CFF_Face face ) { FT_Service_MetricsVariations var = (FT_Service_MetricsVariations)face->var; var->metrics_adjust( FT_FACE( face ) ); } FT_DEFINE_SERVICE_METRICSVARIATIONSREC( cff_service_metrics_variations, (FT_HAdvance_Adjust_Func)cff_hadvance_adjust, /* hadvance_adjust */ (FT_LSB_Adjust_Func) NULL, /* lsb_adjust */ (FT_RSB_Adjust_Func) NULL, /* rsb_adjust */ (FT_VAdvance_Adjust_Func)NULL, /* vadvance_adjust */ (FT_TSB_Adjust_Func) NULL, /* tsb_adjust */ (FT_BSB_Adjust_Func) NULL, /* bsb_adjust */ (FT_VOrg_Adjust_Func) NULL, /* vorg_adjust */ (FT_Metrics_Adjust_Func) cff_metrics_adjust /* metrics_adjust */ ) #endif /* * CFFLOAD SERVICE * */ FT_DEFINE_SERVICE_CFFLOADREC( cff_service_cff_load, (FT_Get_Standard_Encoding_Func)cff_get_standard_encoding, (FT_Load_Private_Dict_Func) cff_load_private_dict, (FT_FD_Select_Get_Func) cff_fd_select_get, (FT_Blend_Check_Vector_Func) cff_blend_check_vector, (FT_Blend_Build_Vector_Func) cff_blend_build_vector ) /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ /**** ****/ /**** ****/ /**** D R I V E R I N T E R F A C E ****/ /**** ****/ /**** ****/ /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ #if defined TT_CONFIG_OPTION_GX_VAR_SUPPORT FT_DEFINE_SERVICEDESCREC10( cff_services, FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, FT_SERVICE_ID_MULTI_MASTERS, &cff_service_multi_masters, FT_SERVICE_ID_METRICS_VARIATIONS, &cff_service_metrics_variations, FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info, FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name, FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict, FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info, FT_SERVICE_ID_CID, &cff_service_cid_info, FT_SERVICE_ID_PROPERTIES, &cff_service_properties, FT_SERVICE_ID_CFF_LOAD, &cff_service_cff_load ) #else FT_DEFINE_SERVICEDESCREC8( cff_services, FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info, FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name, FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict, FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info, FT_SERVICE_ID_CID, &cff_service_cid_info, FT_SERVICE_ID_PROPERTIES, &cff_service_properties, FT_SERVICE_ID_CFF_LOAD, &cff_service_cff_load ) #endif FT_CALLBACK_DEF( FT_Module_Interface ) cff_get_interface( FT_Module driver, /* CFF_Driver */ const char* module_interface ) { FT_Library library; FT_Module sfnt; FT_Module_Interface result; result = ft_service_list_lookup( cff_services, module_interface ); if ( result ) return result; /* `driver' is not yet evaluated */ if ( !driver ) return NULL; library = driver->library; if ( !library ) return NULL; /* we pass our request to the `sfnt' module */ sfnt = FT_Get_Module( library, "sfnt" ); return sfnt ? sfnt->clazz->get_interface( sfnt, module_interface ) : 0; } /* The FT_DriverInterface structure is defined in ftdriver.h. */ #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS #define CFF_SIZE_SELECT cff_size_select #else #define CFF_SIZE_SELECT 0 #endif FT_DEFINE_DRIVER( cff_driver_class, FT_MODULE_FONT_DRIVER | FT_MODULE_DRIVER_SCALABLE | FT_MODULE_DRIVER_HAS_HINTER | FT_MODULE_DRIVER_HINTS_LIGHTLY, sizeof ( PS_DriverRec ), "cff", 0x10000L, 0x20000L, NULL, /* module-specific interface */ cff_driver_init, /* FT_Module_Constructor module_init */ cff_driver_done, /* FT_Module_Destructor module_done */ cff_get_interface, /* FT_Module_Requester get_interface */ sizeof ( TT_FaceRec ), sizeof ( CFF_SizeRec ), sizeof ( CFF_GlyphSlotRec ), cff_face_init, /* FT_Face_InitFunc init_face */ cff_face_done, /* FT_Face_DoneFunc done_face */ cff_size_init, /* FT_Size_InitFunc init_size */ cff_size_done, /* FT_Size_DoneFunc done_size */ cff_slot_init, /* FT_Slot_InitFunc init_slot */ cff_slot_done, /* FT_Slot_DoneFunc done_slot */ cff_glyph_load, /* FT_Slot_LoadFunc load_glyph */ cff_get_kerning, /* FT_Face_GetKerningFunc get_kerning */ NULL, /* FT_Face_AttachFunc attach_file */ cff_get_advances, /* FT_Face_GetAdvancesFunc get_advances */ cff_size_request, /* FT_Size_RequestFunc request_size */ CFF_SIZE_SELECT /* FT_Size_SelectFunc select_size */ ) /* END */