| /**************************************************************************** |
| * |
| * cffdrivr.c |
| * |
| * OpenType font driver implementation (body). |
| * |
| * Copyright (C) 1996-2021 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 <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; |
| PS_FontInfoRec *font_info = NULL; |
| FT_Memory memory = face->root.memory; |
| |
| |
| if ( FT_ALLOC( font_info, sizeof ( *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 == NULL ) |
| { |
| CFF_FontRecDict dict = &cff->top_font.font_dict; |
| PS_FontExtraRec* font_extra = NULL; |
| FT_Memory memory = face->root.memory; |
| FT_String* embedded_postscript; |
| |
| |
| if ( FT_ALLOC( font_extra, sizeof ( *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 ); |
| } |
| |
| |
| 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_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 FT_CONFIG_OPTION_NO_GLYPH_NAMES && \ |
| 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 |
| ) |
| #elif !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES |
| 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 |
| ) |
| #elif defined TT_CONFIG_OPTION_GX_VAR_SUPPORT |
| FT_DEFINE_SERVICEDESCREC9( |
| 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_var, |
| FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info, |
| FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name, |
| 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_SERVICEDESCREC7( |
| 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_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 */ |
