1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* ttload.c */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* Load the basic TrueType tables, i.e., tables that can be either in */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* TTF or OTF fonts (body). */ 7049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 8727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease/* Copyright 1996-2010, 2012, 2013 by */ 9049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* David Turner, Robert Wilhelm, and Werner Lemberg. */ 10049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 11049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* This file is part of the FreeType project, and may only be used, */ 12049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* modified, and distributed under the terms of the FreeType project */ 13049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 14049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* this file you indicate that you have read the license and */ 15049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* understand and accept it fully. */ 16049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 17049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 18049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 19049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include <ft2build.h> 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_DEBUG_H 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_STREAM_H 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_TRUETYPE_TAGS_H 24049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "ttload.h" 25049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 26049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "sferrors.h" 27049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 28049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 29049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 30049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 32049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 33049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* messages during execution. */ 34049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 35049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_COMPONENT 36049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_COMPONENT trace_ttload 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 41049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_lookup_table */ 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Looks for a TrueType table by name. */ 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A face object handle. */ 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 50049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tag :: The searched tag. */ 51049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* A pointer to the table directory entry. 0 if not found. */ 54049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 55049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( TT_Table ) 56049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_lookup_table( TT_Face face, 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong tag ) 58049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Table entry; 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Table limit; 610a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#ifdef FT_DEBUG_LEVEL_TRACE 620a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Bool zero_length = FALSE; 630a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#endif 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 65049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 66049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE4(( "tt_face_lookup_table: %08p, `%c%c%c%c' -- ", 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face, 68049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (FT_Char)( tag >> 24 ), 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (FT_Char)( tag >> 16 ), 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (FT_Char)( tag >> 8 ), 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (FT_Char)( tag ) )); 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 73049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry = face->dir_tables; 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = entry + face->num_tables; 75049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; entry < limit; entry++ ) 77049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 780a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* For compatibility with Windows, we consider */ 790a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* zero-length tables the same as missing tables. */ 80aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich if ( entry->Tag == tag ) 81aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich { 820a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( entry->Length != 0 ) 830a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 840a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE4(( "found table.\n" )); 850a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project return entry; 860a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 870a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#ifdef FT_DEBUG_LEVEL_TRACE 880a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project zero_length = TRUE; 890a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#endif 90049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 91049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 92049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 930a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#ifdef FT_DEBUG_LEVEL_TRACE 940a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( zero_length ) 95295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE4(( "ignoring empty table\n" )); 960a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project else 97295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE4(( "could not find table\n" )); 980a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#endif 990a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 1000a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project return NULL; 101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_goto_table */ 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Looks for a TrueType table by name, then seek a stream to it. */ 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A face object handle. */ 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tag :: The searched tag. */ 116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The stream to seek when the table is found. */ 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* length :: The length of the table if found, undefined otherwise. */ 121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_goto_table( TT_Face face, 127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong tag, 128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream, 129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong* length ) 130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Table table; 132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table = tt_face_lookup_table( face, tag ); 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( table ) 137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( length ) 139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *length = table->Length; 140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( table->Offset ) ) 1420a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 145727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Table_Missing ); 146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1520a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* Here, we */ 1530a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* */ 1540a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* - check that `num_tables' is valid (and adjust it if necessary) */ 1550a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* */ 1560a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* - look for a `head' table, check its size, and parse it to check */ 1570a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* whether its `magic' field is correctly set */ 1580a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* */ 1590a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* - errors (except errors returned by stream handling) */ 1600a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* */ 1610a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* SFNT_Err_Unknown_File_Format: */ 1620a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* no table is defined in directory, it is not sfnt-wrapped */ 1630a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* data */ 1640a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* SFNT_Err_Table_Missing: */ 1650a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* table directory is valid, but essential tables */ 1660a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* (head/bhed/SING) are missing */ 1670a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* */ 168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project check_table_dir( SFNT_Header sfnt, 170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 172295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Error error; 173295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UShort nn, valid_entries = 0; 174295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt has_head = 0, has_sing = 0, has_meta = 0; 175295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_ULong offset = sfnt->offset + 12; 176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field table_dir_entry_fields[] = 178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_TableRec 181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 16 ), 183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( Tag ), 184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( CheckSum ), 185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( Offset ), 186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( Length ), 187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( offset ) ) 1920a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( nn = 0; nn < sfnt->num_tables; nn++ ) 195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_TableRec table; 197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( table_dir_entry_fields, &table ) ) 2000a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 2010a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project nn--; 2020a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "check_table_dir:" 2030a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " can read only %d table%s in font (instead of %d)\n", 2040a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project nn, nn == 1 ? "" : "s", sfnt->num_tables )); 2050a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project sfnt->num_tables = nn; 2060a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project break; 2070a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2090a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* we ignore invalid tables */ 2100a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( table.Offset + table.Length > stream->size ) 2110a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 2120a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "check_table_dir: table entry %d invalid\n", nn )); 2130a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project continue; 2140a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 2150a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project else 2160a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project valid_entries++; 217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( table.Tag == TTAG_head || table.Tag == TTAG_bhed ) 219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt32 magic; 221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifndef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( table.Tag == TTAG_head ) 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project has_head = 1; 227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * The table length should be 0x36, but certain font tools make it 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 0x38, so we will just check that it is greater. 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Note that according to the specification, the table must be 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * padded to 32-bit lengths, but this doesn't apply to the value of 234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * its `Length' field! 235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( table.Length < 0x36 ) 2380a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 2390a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "check_table_dir: `head' table too small\n" )); 240727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Table_Missing ); 2410a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 2420a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( table.Offset + 12 ) || 245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_READ_ULONG( magic ) ) 2460a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( magic != 0x5F0F3CF5UL ) 2490a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 2500a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "check_table_dir:" 2510a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " no magic number found in `head' table\n")); 252727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Table_Missing ); 2530a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 2540a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( offset + ( nn + 1 ) * 16 ) ) 2570a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( table.Tag == TTAG_SING ) 260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project has_sing = 1; 261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( table.Tag == TTAG_META ) 262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project has_meta = 1; 263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2650a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project sfnt->num_tables = valid_entries; 2660a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 2670a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( sfnt->num_tables == 0 ) 2680a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 2690a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "check_table_dir: no tables found\n" )); 270727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Unknown_File_Format ); 2710a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 2720a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 2730a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if `sing' and `meta' tables are present, there is no `head' table */ 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( has_head || ( has_sing && has_meta ) ) 2760a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 277727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_Err_Ok; 2780a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 2790a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 2810a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 2820a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "check_table_dir:" )); 2830a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 2840a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( " neither `head', `bhed', nor `sing' table found\n" )); 2850a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#else 2860a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( " neither `head' nor `sing' table found\n" )); 2870a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#endif 288727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Table_Missing ); 2890a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 2900a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 2910a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project Exit: 2920a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project return error; 293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_font_dir */ 300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the header of a SFNT font file. */ 303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* sfnt :: The SFNT header. */ 311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 315049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Note> */ 316049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The stream cursor must be at the beginning of the font directory. */ 317049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 318049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_font_dir( TT_Face face, 320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project SFNT_HeaderRec sfnt; 323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_TableRec* entry; 3260a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Int nn; 327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field offset_table_fields[] = 329049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 330049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 331049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE SFNT_HeaderRec 332049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 333049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 8 ), 334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( num_tables ), 335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( search_range ), 336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( entry_selector ), 337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( range_shift ), 338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE2(( "tt_face_load_font_dir: %08p\n", face )); 343049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* read the offset table */ 345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 346049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project sfnt.offset = FT_STREAM_POS(); 347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_READ_ULONG( sfnt.format_tag ) || 349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_STREAM_READ_FIELDS( offset_table_fields, &sfnt ) ) 3500a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* many fonts don't have these fields set correctly */ 353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( sfnt.search_range != 1 << ( sfnt.entry_selector + 4 ) || 355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project sfnt.search_range + sfnt.range_shift != sfnt.num_tables << 4 ) 356727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease return FT_THROW( Unknown_File_Format ); 357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load the table directory */ 360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 3610a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "-- Number of tables: %10u\n", sfnt.num_tables )); 3620a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE2(( "-- Format version: 0x%08lx\n", sfnt.format_tag )); 363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 364727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( sfnt.format_tag != TTAG_OTTO ) 365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 366727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease /* check first */ 367727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = check_table_dir( &sfnt, stream ); 368727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( error ) 369727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease { 370727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_TRACE2(( "tt_face_load_font_dir:" 371727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease " invalid table directory for TrueType\n" )); 372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 373727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease goto Exit; 374727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease } 375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->num_tables = sfnt.num_tables; 378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->format_tag = sfnt.format_tag; 379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_QNEW_ARRAY( face->dir_tables, face->num_tables ) ) 3810a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 383049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( sfnt.offset + 12 ) || 384049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ENTER( face->num_tables * 16L ) ) 3850a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 386049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 387049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry = face->dir_tables; 388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 3897f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner FT_TRACE2(( "\n" 3907f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner " tag offset length checksum\n" 3917f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner " ----------------------------------\n" )); 3927f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner 3930a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project for ( nn = 0; nn < sfnt.num_tables; nn++ ) 394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->Tag = FT_GET_TAG4(); 396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->CheckSum = FT_GET_ULONG(); 397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->Offset = FT_GET_LONG(); 398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->Length = FT_GET_LONG(); 399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 4000a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* ignore invalid tables */ 4010a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( entry->Offset + entry->Length > stream->size ) 4020a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project continue; 4030a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project else 4040a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 4057f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner FT_TRACE2(( " %c%c%c%c %08lx %08lx %08lx\n", 4060a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project (FT_Char)( entry->Tag >> 24 ), 4070a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project (FT_Char)( entry->Tag >> 16 ), 4080a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project (FT_Char)( entry->Tag >> 8 ), 4090a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project (FT_Char)( entry->Tag ), 4100a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project entry->Offset, 4117f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner entry->Length, 4127f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner entry->CheckSum )); 4130a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project entry++; 4140a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 417049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE2(( "table directory loaded\n\n" )); 420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 4210a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project Exit: 422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_any */ 430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads any font table into client memory. */ 433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 434049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 435049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: The face object to look for. */ 436049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 437049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tag :: The tag of table to load. Use the value 0 if you want */ 438049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* to access the whole font file, else set this parameter */ 439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* to a valid TrueType table tag that you can forge with */ 440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the MAKE_TT_TAG macro. */ 441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* offset :: The starting offset in the table (or the file if */ 443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tag == 0). */ 444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* length :: The address of the decision variable: */ 446049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If length == NULL: */ 448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the whole table. Returns an error if */ 449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* `offset' == 0! */ 450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If *length == 0: */ 452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Exits immediately; returning the length of the given */ 453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* table or of the font file, depending on the value of */ 454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* `tag'. */ 455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If *length != 0: */ 457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the next `length' bytes of table or font, */ 458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* starting at offset `offset' (in table or font too). */ 459049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* buffer :: The address of target buffer. */ 462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_any( TT_Face face, 468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong tag, 469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Long offset, 470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* buffer, 471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong* length ) 472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 474049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream; 475049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Table table; 476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong size; 477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( tag != 0 ) 480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* look for tag in font directory */ 482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table = tt_face_lookup_table( face, tag ); 483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !table ) 484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 485727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Table_Missing ); 486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project offset += table->Offset; 490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size = table->Length; 491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tag == 0 -- the user wants to access the font file directly */ 494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size = face->root.stream->size; 495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( length && *length == 0 ) 497049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 498049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *length = size; 499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 500727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease return FT_Err_Ok; 501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( length ) 504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size = *length; 505049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project stream = face->root.stream; 507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the `if' is syntactic sugar for picky compilers */ 508049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_AT( offset, buffer, size ) ) 509049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 510049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 511049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 512049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 513049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 514049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 515049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 516049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 517049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 518049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 519049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_generic_header */ 520049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 521049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 522049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the TrueType table `head' or `bhed'. */ 523049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 524049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 525049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 526049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 527049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 528049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 529049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 530049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 531049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 532049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 533049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_generic_header( TT_Face face, 534049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream, 535049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong tag ) 536049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 537049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 538049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Header* header; 539049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 540049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field header_fields[] = 541049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 542049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 543049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_Header 544049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 545049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 54 ), 546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( Table_Version ), 547049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( Font_Revision ), 548049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( CheckSum_Adjust ), 549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( Magic_Number ), 550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( Flags ), 551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( Units_Per_EM ), 552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( Created[0] ), 553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( Created[1] ), 554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( Modified[0] ), 555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( Modified[1] ), 556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( xMin ), 557049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( yMin ), 558049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( xMax ), 559049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( yMax ), 560049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( Mac_Style ), 561049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( Lowest_Rec_PPEM ), 562049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( Font_Direction ), 563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( Index_To_Loc_Format ), 564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( Glyph_Data_Format ), 565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, tag, stream, 0 ); 570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 571049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 572049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 573049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project header = &face->header; 574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 575049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( header_fields, header ) ) 576049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 577049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 578049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "Units per EM: %4u\n", header->Units_Per_EM )); 579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "IndexToLoc: %4d\n", header->Index_To_Loc_Format )); 580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 585049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 586049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_head( TT_Face face, 588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 590049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return tt_face_load_generic_header( face, stream, TTAG_head ); 591049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 592049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 593049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 594049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 595049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 596049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 597049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_bhed( TT_Face face, 598049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 599049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 600049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return tt_face_load_generic_header( face, stream, TTAG_bhed ); 601049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 602049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 603049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ 604049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 605049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 606049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 607049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 608049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 609049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_max_profile */ 610049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 611049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 612049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the maximum profile into a face object. */ 613049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 614049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 615049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 616049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 617049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 618049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 619049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 620049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 621049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 622049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 623049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_maxp( TT_Face face, 624049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 625049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 626049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 627049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_MaxProfile* maxProfile = &face->max_profile; 628049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 629727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease static const FT_Frame_Field maxp_fields[] = 630049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 631049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 632049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_MaxProfile 633049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 634049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 6 ), 635049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_LONG ( version ), 636049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( numGlyphs ), 637049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 638049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 639049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 640727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease static const FT_Frame_Field maxp_fields_extra[] = 641049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 642049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 26 ), 643049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxPoints ), 644049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxContours ), 645049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxCompositePoints ), 646049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxCompositeContours ), 647049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxZones ), 648049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxTwilightPoints ), 649049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxStorage ), 650049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxFunctionDefs ), 651049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxInstructionDefs ), 652049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxStackElements ), 653049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxSizeOfInstructions ), 654049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxComponentElements ), 655049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( maxComponentDepth ), 656049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 657049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_maxp, stream, 0 ); 661049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 663049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 664049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( maxp_fields, maxProfile ) ) 665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxPoints = 0; 668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxContours = 0; 669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxCompositePoints = 0; 670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxCompositeContours = 0; 671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxZones = 0; 672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxTwilightPoints = 0; 673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxStorage = 0; 674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxFunctionDefs = 0; 675049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxInstructionDefs = 0; 676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxStackElements = 0; 677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxSizeOfInstructions = 0; 678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxComponentElements = 0; 679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxComponentDepth = 0; 680049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 681049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( maxProfile->version >= 0x10000L ) 682049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( maxp_fields_extra, maxProfile ) ) 684049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 685049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 686049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: an adjustment that is necessary to load certain */ 687049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* broken fonts like `Keystrokes MT' :-( */ 688049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 689049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We allocate 64 function entries by default when */ 6907f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner /* the maxFunctionDefs value is smaller. */ 691049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 6927f08cbd7d6dcf19b8d8e4328e33032aee342e3b4David 'Digit' Turner if ( maxProfile->maxFunctionDefs < 64 ) 693049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxFunctionDefs = 64; 694049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 695049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* we add 4 phantom points later */ 696049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( maxProfile->maxTwilightPoints > ( 0xFFFFU - 4 ) ) 697049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 698295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE0(( "tt_face_load_maxp:" 699295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner " too much twilight points in `maxp' table;\n" 700295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner " " 701295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner " some glyphs might be rendered incorrectly\n" )); 702049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 703049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project maxProfile->maxTwilightPoints = 0xFFFFU - 4; 704049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 705aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich 706aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich /* we arbitrarily limit recursion to avoid stack exhaustion */ 707aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich if ( maxProfile->maxComponentDepth > 100 ) 708aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich { 709aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich FT_TRACE0(( "tt_face_load_maxp:" 710aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich " abnormally large component depth (%d) set to 100\n", 711aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich maxProfile->maxComponentDepth )); 712aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich maxProfile->maxComponentDepth = 100; 713aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich } 714049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 715049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 716049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "numGlyphs: %u\n", maxProfile->numGlyphs )); 717049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 718049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 719049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 720049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 721049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 722049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 723049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 724049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 725049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 726727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease /* tt_face_load_name */ 727049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 728049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 729049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the name records. */ 730049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 731049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 732049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 733049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 734049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 738049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 739049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_name( TT_Face face, 741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 743049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong table_pos, table_len; 746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong storage_start, storage_limit; 747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt count; 748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_NameTable table; 749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field name_table_fields[] = 751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 753049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_NameTableRec 754049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 755049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 6 ), 756049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( format ), 757049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( numNameRecords ), 758049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( storageOffset ), 759049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 760049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 761049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 762049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field name_record_fields[] = 763049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 764049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 765049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_NameEntryRec 766049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 767049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* no FT_FRAME_START */ 768049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( platformID ), 769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( encodingID ), 770049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( languageID ), 771049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( nameID ), 772049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( stringLength ), 773049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( stringOffset ), 774049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 775049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 776049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 777049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 778049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table = &face->name_table; 779049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table->stream = stream; 780049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_name, stream, &table_len ); 782049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 784049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 785049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table_pos = FT_STREAM_POS(); 786049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 787049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 788049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( name_table_fields, table ) ) 789049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 791049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Some popular Asian fonts have an invalid `storageOffset' value */ 792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* (it should be at least "6 + 12*num_names"). However, the string */ 793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* offsets, computed as "storageOffset + entry->stringOffset", are */ 794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* valid pointers within the name table... */ 795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 796049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We thus can't check `storageOffset' right now. */ 797049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 798049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project storage_start = table_pos + 6 + 12*table->numNameRecords; 799049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project storage_limit = table_pos + table_len; 800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( storage_start > storage_limit ) 802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 803295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_ERROR(( "tt_face_load_name: invalid `name' table\n" )); 804727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Name_Table_Missing ); 805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Allocate the array of name records. */ 809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count = table->numNameRecords; 810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table->numNameRecords = 0; 811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_NEW_ARRAY( table->names, count ) || 813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ENTER( count * 12 ) ) 814049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 815049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Load the name records and determine how much storage is needed */ 817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* to hold the strings themselves. */ 818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_NameEntryRec* entry = table->names; 820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; count > 0; count-- ) 823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( name_record_fields, entry ) ) 825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that the name is not empty */ 828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( entry->stringLength == 0 ) 829049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that the name string is within the table */ 832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->stringOffset += table_pos + table->storageOffset; 833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( entry->stringOffset < storage_start || 834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->stringOffset + entry->stringLength > storage_limit ) 835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* invalid entry - ignore it */ 837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->stringOffset = 0; 838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->stringLength = 0; 839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry++; 843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table->numNameRecords = (FT_UInt)( entry - table->names ); 846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* everything went well, update face->num_names */ 851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->num_names = (FT_UShort) table->numNameRecords; 852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_free_names */ 862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Frees the name records. */ 865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( void ) 870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_free_name( TT_Face face ) 871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = face->root.driver->root.memory; 873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_NameTable table = &face->name_table; 874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_NameEntry entry = table->names; 875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt count = table->numNameRecords; 876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( table->names ) 879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; count > 0; count--, entry++ ) 881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 882049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( entry->string ); 883049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project entry->stringLength = 0; 884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* free strings table */ 887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( table->names ); 888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table->numNameRecords = 0; 891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table->format = 0; 892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table->storageOffset = 0; 893049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 894049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 895049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 896049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 897049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 898049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 899049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_cmap */ 900049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 901049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 902049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the cmap directory in a face object. The cmaps themselves */ 903049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* are loaded on demand in the `ttcmap.c' module. */ 904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 905049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 906049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: A handle to the input stream. */ 909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 910049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 911049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 913049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 914049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 915049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_cmap( TT_Face face, 916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 919049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_cmap, stream, &face->cmap_size ); 922049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_FRAME_EXTRACT( face->cmap_size, face->cmap_table ) ) 926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->cmap_size = 0; 927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 932049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 933049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 934049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_os2 */ 938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the OS2 table. */ 941049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 942049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 943049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 944049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 945049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: A handle to the input stream. */ 946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 947049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 948049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 949049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 951049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_os2( TT_Face face, 952049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_OS2* os2; 956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 957727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease static const FT_Frame_Field os2_fields[] = 958049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_OS2 961049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 962049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 78 ), 963049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( version ), 964049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( xAvgCharWidth ), 965049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usWeightClass ), 966049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usWidthClass ), 967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( fsType ), 968049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySubscriptXSize ), 969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySubscriptYSize ), 970049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySubscriptXOffset ), 971049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySubscriptYOffset ), 972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySuperscriptXSize ), 973049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySuperscriptYSize ), 974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySuperscriptXOffset ), 975049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( ySuperscriptYOffset ), 976049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( yStrikeoutSize ), 977049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( yStrikeoutPosition ), 978049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( sFamilyClass ), 979049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[0] ), 980049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[1] ), 981049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[2] ), 982049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[3] ), 983049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[4] ), 984049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[5] ), 985049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[6] ), 986049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[7] ), 987049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[8] ), 988049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( panose[9] ), 989049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( ulUnicodeRange1 ), 990049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( ulUnicodeRange2 ), 991049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( ulUnicodeRange3 ), 992049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( ulUnicodeRange4 ), 993049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( achVendID[0] ), 994049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( achVendID[1] ), 995049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( achVendID[2] ), 996049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( achVendID[3] ), 997049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 998049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( fsSelection ), 999049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usFirstCharIndex ), 1000049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usLastCharIndex ), 1001049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( sTypoAscender ), 1002049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( sTypoDescender ), 1003049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( sTypoLineGap ), 1004049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usWinAscent ), 1005049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usWinDescent ), 1006049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 1007049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 1008049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1009727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease static const FT_Frame_Field os2_fields_extra[] = 1010049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1011049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 8 ), 1012049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( ulCodePageRange1 ), 1013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( ulCodePageRange2 ), 1014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 1015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 1016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1017727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease static const FT_Frame_Field os2_fields_extra2[] = 1018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 10 ), 1020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( sxHeight ), 1021049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT ( sCapHeight ), 1022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usDefaultChar ), 1023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usBreakChar ), 1024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( usMaxContext ), 1025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 1026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 1027049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1028049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1029049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We now support old Mac fonts where the OS/2 table doesn't */ 1030049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* exist. Simply put, we set the `version' field to 0xFFFF */ 1031049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* and test this value each time we need to access the table. */ 1032049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_OS2, stream, 0 ); 1033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1034049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1035049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1036049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2 = &face->os2; 1037049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( os2_fields, os2 ) ) 1039049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1040049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1041049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->ulCodePageRange1 = 0; 1042049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->ulCodePageRange2 = 0; 1043049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->sxHeight = 0; 1044049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->sCapHeight = 0; 1045049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->usDefaultChar = 0; 1046049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->usBreakChar = 0; 1047049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project os2->usMaxContext = 0; 1048049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1049049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( os2->version >= 0x0001 ) 1050049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1051049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* only version 1 tables */ 1052049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( os2_fields_extra, os2 ) ) 1053049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1054049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1055049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( os2->version >= 0x0002 ) 1056049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1057049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* only version 2 tables */ 1058049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( os2_fields_extra2, os2 ) ) 1059049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1060049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1061049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1062049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1063049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "sTypoAscender: %4d\n", os2->sTypoAscender )); 1064049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "sTypoDescender: %4d\n", os2->sTypoDescender )); 1065049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "usWinAscent: %4u\n", os2->usWinAscent )); 1066049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "usWinDescent: %4u\n", os2->usWinDescent )); 1067049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "fsSelection: 0x%2x\n", os2->fsSelection )); 1068049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1069049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1070049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1071049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1072049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1073049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1074049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1075049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1076049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1077049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_postscript */ 1078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the Postscript table. */ 1081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1082049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 1083049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 1084049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1085049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: A handle to the input stream. */ 1086049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1087049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 1088049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 1089049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1090049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 1091049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_post( TT_Face face, 1092049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 1093049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1094049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1095049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Postscript* post = &face->postscript; 1096049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1097049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field post_fields[] = 1098049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1099049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 1100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_Postscript 1101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 32 ), 1103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( FormatType ), 1104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( italicAngle ), 1105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT( underlinePosition ), 1106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SHORT( underlineThickness ), 1107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( isFixedPitch ), 1108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( minMemType42 ), 1109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( maxMemType42 ), 1110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( minMemType1 ), 1111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( maxMemType1 ), 1112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 1113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 1114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_post, stream, 0 ); 1117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( post_fields, post ) ) 1121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* we don't load the glyph names, we do that in another */ 1124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* module (ttpost). */ 1125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "FormatType: 0x%x\n", post->FormatType )); 1127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "isFixedPitch: %s\n", post->isFixedPitch 1128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ? " yes" : " no" )); 1129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1130727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease return FT_Err_Ok; 1131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_pclt */ 1138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the PCL 5 Table. */ 1141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 1143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 1144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: A handle to the input stream. */ 1146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 1148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 1149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 1151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_pclt( TT_Face face, 1152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 1153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field pclt_fields[] = 1155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 1157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_PCLT 1158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 54 ), 1160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( Version ), 1161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG ( FontNumber ), 1162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( Pitch ), 1163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( xHeight ), 1164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( Style ), 1165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( TypeFamily ), 1166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( CapHeight ), 1167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTES ( TypeFace, 16 ), 1168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTES ( CharacterComplement, 8 ), 1169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTES ( FileName, 6 ), 1170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR ( StrokeWeight ), 1171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR ( WidthType ), 1172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( SerifStyle ), 1173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( Reserved ), 1174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 1175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 1176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_PCLT* pclt = &face->pclt; 1179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* optional table */ 1182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_PCLT, stream, 0 ); 1183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( pclt_fields, pclt ) ) 1187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_gasp */ 1198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the `gasp' table into a face object. */ 1201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 1203049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: A handle to the target face object. */ 1204049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 1206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 1208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 1209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 1211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_gasp( TT_Face face, 1212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 1213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 1216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt j,num_ranges; 1218aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner TT_GaspRange gaspranges = NULL; 1219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the gasp table is optional */ 1222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_gasp, stream, 0 ); 1223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_FRAME_ENTER( 4L ) ) 1227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->gasp.version = FT_GET_USHORT(); 1230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->gasp.numRanges = FT_GET_USHORT(); 1231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 1233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* only support versions 0 and 1 of the table */ 1235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->gasp.version >= 2 ) 1236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->gasp.numRanges = 0; 1238727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Invalid_Table ); 1239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_ranges = face->gasp.numRanges; 1243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "numRanges: %u\n", num_ranges )); 1244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1245727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( FT_QNEW_ARRAY( face->gasp.gaspRanges, num_ranges ) || 1246727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_FRAME_ENTER( num_ranges * 4L ) ) 1247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1249727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease gaspranges = face->gasp.gaspRanges; 1250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( j = 0; j < num_ranges; j++ ) 1252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gaspranges[j].maxPPEM = FT_GET_USHORT(); 1254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gaspranges[j].gaspFlag = FT_GET_USHORT(); 1255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE3(( "gaspRange %d: rangeMaxPPEM %5d, rangeGaspBehavior 0x%x\n", 1257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project j, 1258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gaspranges[j].maxPPEM, 1259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gaspranges[j].gaspFlag )); 1260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 1263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 1270