diff options
Diffstat (limited to 'src/sfnt/sfdriver.c')
| -rw-r--r-- | src/sfnt/sfdriver.c | 618 |
1 files changed, 0 insertions, 618 deletions
diff --git a/src/sfnt/sfdriver.c b/src/sfnt/sfdriver.c deleted file mode 100644 index 5ba22a6..0000000 --- a/src/sfnt/sfdriver.c +++ /dev/null @@ -1,618 +0,0 @@ -/***************************************************************************/ -/* */ -/* sfdriver.c */ -/* */ -/* High-level SFNT driver interface (body). */ -/* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 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 FT_INTERNAL_SFNT_H -#include FT_INTERNAL_OBJECTS_H - -#include "sfdriver.h" -#include "ttload.h" -#include "sfobjs.h" - -#include "sferrors.h" - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS -#include "ttsbit.h" -#endif - -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES -#include "ttpost.h" -#endif - -#ifdef TT_CONFIG_OPTION_BDF -#include "ttbdf.h" -#include FT_SERVICE_BDF_H -#endif - -#include "ttcmap.h" -#include "ttkern.h" -#include "ttmtx.h" - -#include FT_SERVICE_GLYPH_DICT_H -#include FT_SERVICE_POSTSCRIPT_NAME_H -#include FT_SERVICE_SFNT_H -#include FT_SERVICE_TT_CMAP_H - - - /* - * SFNT TABLE SERVICE - * - */ - - static void* - get_sfnt_table( TT_Face face, - FT_Sfnt_Tag tag ) - { - void* table; - - - switch ( tag ) - { - case ft_sfnt_head: - table = &face->header; - break; - - case ft_sfnt_hhea: - table = &face->horizontal; - break; - - case ft_sfnt_vhea: - table = face->vertical_info ? &face->vertical : 0; - break; - - case ft_sfnt_os2: - table = face->os2.version == 0xFFFFU ? 0 : &face->os2; - break; - - case ft_sfnt_post: - table = &face->postscript; - break; - - case ft_sfnt_maxp: - table = &face->max_profile; - break; - - case ft_sfnt_pclt: - table = face->pclt.Version ? &face->pclt : 0; - break; - - default: - table = 0; - } - - return table; - } - - - static FT_Error - sfnt_table_info( TT_Face face, - FT_UInt idx, - FT_ULong *tag, - FT_ULong *length ) - { - if ( !tag || !length ) - return SFNT_Err_Invalid_Argument; - - if ( idx >= face->num_tables ) - return SFNT_Err_Table_Missing; - - *tag = face->dir_tables[idx].Tag; - *length = face->dir_tables[idx].Length; - - return SFNT_Err_Ok; - } - - - static const FT_Service_SFNT_TableRec sfnt_service_sfnt_table = - { - (FT_SFNT_TableLoadFunc)tt_face_load_any, - (FT_SFNT_TableGetFunc) get_sfnt_table, - (FT_SFNT_TableInfoFunc)sfnt_table_info - }; - - -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES - - /* - * GLYPH DICT SERVICE - * - */ - - static FT_Error - sfnt_get_glyph_name( TT_Face face, - FT_UInt glyph_index, - FT_Pointer buffer, - FT_UInt buffer_max ) - { - FT_String* gname; - FT_Error error; - - - error = tt_face_get_ps_name( face, glyph_index, &gname ); - if ( !error ) - FT_STRCPYN( buffer, gname, buffer_max ); - - return error; - } - - - static const FT_Service_GlyphDictRec sfnt_service_glyph_dict = - { - (FT_GlyphDict_GetNameFunc) sfnt_get_glyph_name, - (FT_GlyphDict_NameIndexFunc)NULL - }; - -#endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */ - - - /* - * POSTSCRIPT NAME SERVICE - * - */ - - static const char* - sfnt_get_ps_name( TT_Face face ) - { - FT_Int n, found_win, found_apple; - const char* result = NULL; - - - /* shouldn't happen, but just in case to avoid memory leaks */ - if ( face->postscript_name ) - return face->postscript_name; - - /* scan the name table to see whether we have a Postscript name here, */ - /* either in Macintosh or Windows platform encodings */ - found_win = -1; - found_apple = -1; - - for ( n = 0; n < face->num_names; n++ ) - { - TT_NameEntryRec* name = face->name_table.names + n; - - - if ( name->nameID == 6 && name->stringLength > 0 ) - { - if ( name->platformID == 3 && - name->encodingID == 1 && - name->languageID == 0x409 ) - found_win = n; - - if ( name->platformID == 1 && - name->encodingID == 0 && - name->languageID == 0 ) - found_apple = n; - } - } - - if ( found_win != -1 ) - { - FT_Memory memory = face->root.memory; - TT_NameEntryRec* name = face->name_table.names + found_win; - FT_UInt len = name->stringLength / 2; - FT_Error error = SFNT_Err_Ok; - - FT_UNUSED( error ); - - - if ( !FT_ALLOC( result, name->stringLength + 1 ) ) - { - FT_Stream stream = face->name_table.stream; - FT_String* r = (FT_String*)result; - FT_Byte* p = (FT_Byte*)name->string; - - - if ( FT_STREAM_SEEK( name->stringOffset ) || - FT_FRAME_ENTER( name->stringLength ) ) - { - FT_FREE( result ); - name->stringLength = 0; - name->stringOffset = 0; - FT_FREE( name->string ); - - goto Exit; - } - - p = (FT_Byte*)stream->cursor; - - for ( ; len > 0; len--, p += 2 ) - { - if ( p[0] == 0 && p[1] >= 32 && p[1] < 128 ) - *r++ = p[1]; - } - *r = '\0'; - - FT_FRAME_EXIT(); - } - goto Exit; - } - - if ( found_apple != -1 ) - { - FT_Memory memory = face->root.memory; - TT_NameEntryRec* name = face->name_table.names + found_apple; - FT_UInt len = name->stringLength; - FT_Error error = SFNT_Err_Ok; - - FT_UNUSED( error ); - - - if ( !FT_ALLOC( result, len + 1 ) ) - { - FT_Stream stream = face->name_table.stream; - - - if ( FT_STREAM_SEEK( name->stringOffset ) || - FT_STREAM_READ( result, len ) ) - { - name->stringOffset = 0; - name->stringLength = 0; - FT_FREE( name->string ); - FT_FREE( result ); - goto Exit; - } - ((char*)result)[len] = '\0'; - } - } - - Exit: - face->postscript_name = result; - return result; - } - - static const FT_Service_PsFontNameRec sfnt_service_ps_name = - { - (FT_PsName_GetFunc)sfnt_get_ps_name - }; - - - /* - * TT CMAP INFO - */ - static const FT_Service_TTCMapsRec tt_service_get_cmap_info = - { - (TT_CMap_Info_GetFunc)tt_get_cmap_info - }; - - -#ifdef TT_CONFIG_OPTION_BDF - - static FT_Error - sfnt_get_charset_id( TT_Face face, - const char* *acharset_encoding, - const char* *acharset_registry ) - { - BDF_PropertyRec encoding, registry; - FT_Error error; - - - /* XXX: I don't know whether this is correct, since - * tt_face_find_bdf_prop only returns something correct if we have - * previously selected a size that is listed in the BDF table. - * Should we change the BDF table format to include single offsets - * for `CHARSET_REGISTRY' and `CHARSET_ENCODING'? - */ - error = tt_face_find_bdf_prop( face, "CHARSET_REGISTRY", ®istry ); - if ( !error ) - { - error = tt_face_find_bdf_prop( face, "CHARSET_ENCODING", &encoding ); - if ( !error ) - { - if ( registry.type == BDF_PROPERTY_TYPE_ATOM && - encoding.type == BDF_PROPERTY_TYPE_ATOM ) - { - *acharset_encoding = encoding.u.atom; - *acharset_registry = registry.u.atom; - } - else - error = FT_Err_Invalid_Argument; - } - } - - return error; - } - - - static const FT_Service_BDFRec sfnt_service_bdf = - { - (FT_BDF_GetCharsetIdFunc) sfnt_get_charset_id, - (FT_BDF_GetPropertyFunc) tt_face_find_bdf_prop, - }; - -#endif /* TT_CONFIG_OPTION_BDF */ - - - /* - * SERVICE LIST - */ - - static const FT_ServiceDescRec sfnt_services[] = - { - { FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table }, - { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name }, -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES - { FT_SERVICE_ID_GLYPH_DICT, &sfnt_service_glyph_dict }, -#endif -#ifdef TT_CONFIG_OPTION_BDF - { FT_SERVICE_ID_BDF, &sfnt_service_bdf }, -#endif - { FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info }, - - { NULL, NULL } - }; - - - FT_CALLBACK_DEF( FT_Module_Interface ) - sfnt_get_interface( FT_Module module, - const char* module_interface ) - { - FT_UNUSED( module ); - - return ft_service_list_lookup( sfnt_services, module_interface ); - } - - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - - FT_CALLBACK_DEF( FT_Error ) - tt_face_load_sfnt_header_stub( TT_Face face, - FT_Stream stream, - FT_Long face_index, - SFNT_Header header ) - { - FT_UNUSED( face ); - FT_UNUSED( stream ); - FT_UNUSED( face_index ); - FT_UNUSED( header ); - - return FT_Err_Unimplemented_Feature; - } - - - FT_CALLBACK_DEF( FT_Error ) - tt_face_load_directory_stub( TT_Face face, - FT_Stream stream, - SFNT_Header header ) - { - FT_UNUSED( face ); - FT_UNUSED( stream ); - FT_UNUSED( header ); - - return FT_Err_Unimplemented_Feature; - } - - - FT_CALLBACK_DEF( FT_Error ) - tt_face_load_hdmx_stub( TT_Face face, - FT_Stream stream ) - { - FT_UNUSED( face ); - FT_UNUSED( stream ); - - return FT_Err_Unimplemented_Feature; - } - - - FT_CALLBACK_DEF( void ) - tt_face_free_hdmx_stub( TT_Face face ) - { - FT_UNUSED( face ); - } - - - FT_CALLBACK_DEF( FT_Error ) - tt_face_set_sbit_strike_stub( TT_Face face, - FT_UInt x_ppem, - FT_UInt y_ppem, - FT_ULong* astrike_index ) - { - /* - * We simply forge a FT_Size_Request and call the real function - * that does all the work. - * - * This stub might be called by libXfont in the X.Org Xserver, - * compiled against version 2.1.8 or newer. - */ - - FT_Size_RequestRec req; - - - req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; - req.width = (FT_F26Dot6)x_ppem; - req.height = (FT_F26Dot6)y_ppem; - req.horiResolution = 0; - req.vertResolution = 0; - - *astrike_index = 0x7FFFFFFFUL; - - return tt_face_set_sbit_strike( face, &req, astrike_index ); - } - - - FT_CALLBACK_DEF( FT_Error ) - tt_face_load_sbit_stub( TT_Face face, - FT_Stream stream ) - { - FT_UNUSED( face ); - FT_UNUSED( stream ); - - /* - * This function was originally implemented to load the sbit table. - * However, it has been replaced by `tt_face_load_eblc', and this stub - * is only there for some rogue clients which would want to call it - * directly (which doesn't make much sense). - */ - return FT_Err_Unimplemented_Feature; - } - - - FT_CALLBACK_DEF( void ) - tt_face_free_sbit_stub( TT_Face face ) - { - /* nothing to do in this stub */ - FT_UNUSED( face ); - } - - - FT_CALLBACK_DEF( FT_Error ) - tt_face_load_charmap_stub( TT_Face face, - void* cmap, - FT_Stream input ) - { - FT_UNUSED( face ); - FT_UNUSED( cmap ); - FT_UNUSED( input ); - - return FT_Err_Unimplemented_Feature; - } - - - FT_CALLBACK_DEF( FT_Error ) - tt_face_free_charmap_stub( TT_Face face, - void* cmap ) - { - FT_UNUSED( face ); - FT_UNUSED( cmap ); - - return 0; - } - -#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ - - - static - const SFNT_Interface sfnt_interface = - { - tt_face_goto_table, - - sfnt_init_face, - sfnt_load_face, - sfnt_done_face, - sfnt_get_interface, - - tt_face_load_any, - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_load_sfnt_header_stub, - tt_face_load_directory_stub, -#endif - - tt_face_load_head, - tt_face_load_hhea, - tt_face_load_cmap, - tt_face_load_maxp, - tt_face_load_os2, - tt_face_load_post, - - tt_face_load_name, - tt_face_free_name, - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_load_hdmx_stub, - tt_face_free_hdmx_stub, -#endif - - tt_face_load_kern, - tt_face_load_gasp, - tt_face_load_pclt, - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - /* see `ttload.h' */ - tt_face_load_bhed, -#else - 0, -#endif - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_set_sbit_strike_stub, - tt_face_load_sbit_stub, - - tt_find_sbit_image, - tt_load_sbit_metrics, -#endif - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - tt_face_load_sbit_image, -#else - 0, -#endif - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_free_sbit_stub, -#endif - -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES - /* see `ttpost.h' */ - tt_face_get_ps_name, - tt_face_free_ps_names, -#else - 0, - 0, -#endif - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - tt_face_load_charmap_stub, - tt_face_free_charmap_stub, -#endif - - /* since version 2.1.8 */ - - tt_face_get_kerning, - - /* since version 2.2 */ - - tt_face_load_font_dir, - tt_face_load_hmtx, - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - /* see `ttsbit.h' and `sfnt.h' */ - tt_face_load_eblc, - tt_face_free_eblc, - - tt_face_set_sbit_strike, - tt_face_load_strike_metrics, -#else - 0, - 0, - 0, - 0, -#endif - - tt_face_get_metrics - }; - - - FT_CALLBACK_TABLE_DEF - const FT_Module_Class sfnt_module_class = - { - 0, /* not a font driver or renderer */ - sizeof( FT_ModuleRec ), - - "sfnt", /* driver name */ - 0x10000L, /* driver version 1.0 */ - 0x20000L, /* driver requires FreeType 2.0 or higher */ - - (const void*)&sfnt_interface, /* module specific interface */ - - (FT_Module_Constructor)0, - (FT_Module_Destructor) 0, - (FT_Module_Requester) sfnt_get_interface - }; - - -/* END */ |