1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* afglobal.c */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* Auto-fitter routines to compute global hinting values (body). */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 7727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease/* Copyright 2003-2013 by */ 8049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* David Turner, Robert Wilhelm, and Werner Lemberg. */ 9049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 10049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* This file is part of the FreeType project, and may only be used, */ 11049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* modified, and distributed under the terms of the FreeType project */ 12049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* this file you indicate that you have read the license and */ 14049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* understand and accept it fully. */ 15049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 16049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 17049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 18049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 19049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "afglobal.h" 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "afdummy.h" 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "aflatin.h" 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "afcjk.h" 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "afindic.h" 24295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#include "afpic.h" 25049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 26049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "aferrors.h" 27049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 28049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_OPTION_AUTOFIT2 29049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "aflatin2.h" 30049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 32295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#ifndef FT_CONFIG_OPTION_PIC 33295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 34aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* when updating this table, don't forget to update */ 35aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */ 36295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* populate this list when you add new scripts */ 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static AF_ScriptClass const af_script_classes[] = 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &af_dummy_script_class, 41049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_OPTION_AUTOFIT2 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &af_latin2_script_class, 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &af_latin_script_class, 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &af_cjk_script_class, 4641371e1e39c8528eb0c4bc40683c736e6683e60cEric Vannier &af_indic_script_class, 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project NULL /* do not remove */ 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 50aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif /* !FT_CONFIG_OPTION_PIC */ 51295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Compute the script index of each glyph within a given face. */ 54049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 55049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 56049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_compute_script_coverage( AF_FaceGlobals globals ) 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 58727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_Error error; 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Face face = globals->face; 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CharMap old_charmap = face->charmap; 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* gscripts = globals->glyph_scripts; 62727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_UInt ss; 63727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_UInt i; 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 65049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 66727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease /* the value AF_SCRIPT_NONE means `uncovered glyph' */ 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MEM_SET( globals->glyph_scripts, 68727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_SCRIPT_NONE, 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_count ); 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_Select_Charmap( face, FT_ENCODING_UNICODE ); 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 73049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 75727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease * Ignore this error; we simply use the fallback script. 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * XXX: Shouldn't we rather disable hinting? 77049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 78727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_Err_Ok; 79049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 80049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 81049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 82049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* scan each script in a Unicode charmap */ 83295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ ) 84049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 85295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss]; 86049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_UniRange range; 87049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 88049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 89049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_uni_ranges == NULL ) 90049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 91049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 92049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 93727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease * Scan all Unicode points in the range and set the corresponding 94049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * glyph script index. 95049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 96049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( range = clazz->script_uni_ranges; range->first != 0; range++ ) 97049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 98049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong charcode = range->first; 99049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt gindex; 100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gindex = FT_Get_Char_Index( face, charcode ); 103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( gindex != 0 && 105295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner gindex < (FT_ULong)globals->glyph_count && 106727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease gscripts[gindex] == AF_SCRIPT_NONE ) 107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gscripts[gindex] = (FT_Byte)ss; 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for (;;) 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project charcode = FT_Get_Next_Char( face, charcode, &gindex ); 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( gindex == 0 || charcode > range->last ) 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 116295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex < (FT_ULong)globals->glyph_count && 117727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease gscripts[gindex] == AF_SCRIPT_NONE ) 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gscripts[gindex] = (FT_Byte)ss; 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 123295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* mark ASCII digits */ 124295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner for ( i = 0x30; i <= 0x39; i++ ) 125295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 126295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt gindex = FT_Get_Char_Index( face, i ); 127295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 128295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 129295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex != 0 && gindex < (FT_ULong)globals->glyph_count ) 130295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner gscripts[gindex] |= AF_DIGIT; 131295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 132295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 135727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease * By default, all uncovered glyphs are set to the fallback script. 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * XXX: Shouldn't we disable hinting or do something similar? 137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 138727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( globals->module->fallback_script != AF_SCRIPT_NONE ) 139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 140295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Long nn; 141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( nn = 0; nn < globals->glyph_count; nn++ ) 144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 145727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_NONE ) 146aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich { 147727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease gscripts[nn] &= ~AF_SCRIPT_NONE; 148727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease gscripts[nn] |= globals->module->fallback_script; 149aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich } 150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Set_Charmap( face, old_charmap ); 154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_new( FT_Face face, 160727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_FaceGlobals *aglobals, 161727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_Module module ) 162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory; 165aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich AF_FaceGlobals globals = NULL; 166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project memory = face->memory; 169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 170727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( FT_ALLOC( globals, sizeof ( *globals ) + 171727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease face->num_glyphs * sizeof ( FT_Byte ) ) ) 172727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease goto Exit; 173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 174727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease globals->face = face; 175727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease globals->glyph_count = face->num_glyphs; 176727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease globals->glyph_scripts = (FT_Byte*)( globals + 1 ); 177727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease globals->module = module; 178727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease 179727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = af_face_globals_compute_script_coverage( globals ); 180727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease if ( error ) 181727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease { 182727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease af_face_globals_free( globals ); 183727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease globals = NULL; 184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 186727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease globals->increase_x_height = AF_PROP_INCREASE_X_HEIGHT_MAX; 187727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease 188727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease Exit: 189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglobals = globals; 190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( void ) 195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_free( AF_FaceGlobals globals ) 196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( globals ) 198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = globals->face->memory; 200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt nn; 201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 203049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ ) 204049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( globals->metrics[nn] ) 206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 207295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn]; 208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ASSERT( globals->metrics[nn]->clazz == clazz ); 211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_metrics_done ) 213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project clazz->script_metrics_done( globals->metrics[nn] ); 214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( globals->metrics[nn] ); 216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_count = 0; 220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_scripts = NULL; /* no need to free this one! */ 221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->face = NULL; 222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( globals ); 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_get_metrics( AF_FaceGlobals globals, 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt gindex, 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt options, 232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics *ametrics ) 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics metrics = NULL; 235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt gidx; 236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptClass clazz; 237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt script = options & 15; 238295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner const FT_Offset script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) / 239295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner sizeof ( AF_SCRIPT_CLASSES_GET[0] ); 240727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_Error error = FT_Err_Ok; 241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 243295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex >= (FT_ULong)globals->glyph_count ) 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 245727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease error = FT_THROW( Invalid_Argument ); 246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gidx = script; 250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( gidx == 0 || gidx + 1 >= script_max ) 251727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_NONE; 252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 253295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner clazz = AF_SCRIPT_CLASSES_GET[gidx]; 254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( script == 0 ) 255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project script = clazz->script; 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics = globals->metrics[clazz->script]; 258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( metrics == NULL ) 259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 260727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease /* create the global metrics object if necessary */ 261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = globals->face->memory; 262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_ALLOC( metrics, clazz->script_metrics_size ) ) 265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 267727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease metrics->clazz = clazz; 268727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease metrics->globals = globals; 269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_metrics_init ) 271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = clazz->script_metrics_init( metrics, globals->face ); 273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_metrics_done ) 276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project clazz->script_metrics_done( metrics ); 277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( metrics ); 279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->metrics[clazz->script] = metrics; 284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *ametrics = metrics; 288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 293295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_LOCAL_DEF( FT_Bool ) 294295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner af_face_globals_is_digit( AF_FaceGlobals globals, 295295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt gindex ) 296295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 297295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex < (FT_ULong)globals->glyph_count ) 298295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner return (FT_Bool)( globals->glyph_scripts[gindex] & AF_DIGIT ); 299295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 300295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner return (FT_Bool)0; 301295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 302295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 303295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 305