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/* */ 7aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich/* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 34295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner/* when updating this table, don't forget to update 35295ffce55e0198e7a9f7d46b33f5c2b4147bf821David '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, 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &af_indic_script_class, 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project NULL /* do not remove */ 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 50295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#endif /* FT_CONFIG_OPTION_PIC */ 51295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* index of default script in `af_script_classes' */ 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_SCRIPT_LIST_DEFAULT 2 54295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* a bit mask indicating an uncovered glyph */ 55295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#define AF_SCRIPT_LIST_NONE 0x7F 56295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* if this flag is set, we have an ASCII digit */ 57295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#define AF_DIGIT 0x80 58049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Note that glyph_scripts[] is used to map each glyph into 62049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * an index into the `af_script_classes' array. 63049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 65049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_FaceGlobalsRec_ 66049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Face face; 68295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Long glyph_count; /* same as face->num_glyphs */ 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* glyph_scripts; 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics metrics[AF_SCRIPT_MAX]; 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 73049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_FaceGlobalsRec; 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 75049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Compute the script index of each glyph within a given face. */ 77049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 78049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 79049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_compute_script_coverage( AF_FaceGlobals globals ) 80049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 81049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = AF_Err_Ok; 82049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Face face = globals->face; 83049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CharMap old_charmap = face->charmap; 84049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* gscripts = globals->glyph_scripts; 85295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt ss, i; 86049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 87049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 88049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the value 255 means `uncovered glyph' */ 89049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MEM_SET( globals->glyph_scripts, 90049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCRIPT_LIST_NONE, 91049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_count ); 92049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 93049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_Select_Charmap( face, FT_ENCODING_UNICODE ); 94049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 95049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 96049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 97049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Ignore this error; we simply use the default script. 98049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * XXX: Shouldn't we rather disable hinting? 99049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = AF_Err_Ok; 101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* scan each script in a Unicode charmap */ 105295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ ) 106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 107295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss]; 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_UniRange range; 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_uni_ranges == NULL ) 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Scan all unicode points in the range and set the corresponding 116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * glyph script index. 117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( range = clazz->script_uni_ranges; range->first != 0; range++ ) 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong charcode = range->first; 121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt gindex; 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gindex = FT_Get_Char_Index( face, charcode ); 125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( gindex != 0 && 127295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner gindex < (FT_ULong)globals->glyph_count && 128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gscripts[gindex] == AF_SCRIPT_LIST_NONE ) 129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gscripts[gindex] = (FT_Byte)ss; 131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for (;;) 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project charcode = FT_Get_Next_Char( face, charcode, &gindex ); 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( gindex == 0 || charcode > range->last ) 138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 140295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex < (FT_ULong)globals->glyph_count && 141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gscripts[gindex] == AF_SCRIPT_LIST_NONE ) 142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gscripts[gindex] = (FT_Byte)ss; 144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 149295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* mark ASCII digits */ 150295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner for ( i = 0x30; i <= 0x39; i++ ) 151295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 152295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt gindex = FT_Get_Char_Index( face, i ); 153295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 154295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 155295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex != 0 && gindex < (FT_ULong)globals->glyph_count ) 156295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner gscripts[gindex] |= AF_DIGIT; 157295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 158295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * By default, all uncovered glyphs are set to the latin script. 162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * XXX: Shouldn't we disable hinting or do something similar? 163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 165295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Long nn; 166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( nn = 0; nn < globals->glyph_count; nn++ ) 169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 170aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_LIST_NONE ) 171aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich { 172aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich gscripts[nn] &= ~AF_SCRIPT_LIST_NONE; 173aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich gscripts[nn] |= AF_SCRIPT_LIST_DEFAULT; 174aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich } 175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Set_Charmap( face, old_charmap ); 179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_new( FT_Face face, 185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_FaceGlobals *aglobals ) 186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory; 189aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich AF_FaceGlobals globals = NULL; 190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project memory = face->memory; 193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !FT_ALLOC( globals, sizeof ( *globals ) + 195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->num_glyphs * sizeof ( FT_Byte ) ) ) 196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->face = face; 198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_count = face->num_glyphs; 199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_scripts = (FT_Byte*)( globals + 1 ); 200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_face_globals_compute_script_coverage( globals ); 202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 203049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 204049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_free( globals ); 205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals = NULL; 206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglobals = globals; 210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( void ) 215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_free( AF_FaceGlobals globals ) 216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( globals ) 218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = globals->face->memory; 220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt nn; 221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ ) 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( globals->metrics[nn] ) 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 227295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn]; 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ASSERT( globals->metrics[nn]->clazz == clazz ); 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_metrics_done ) 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project clazz->script_metrics_done( globals->metrics[nn] ); 234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( globals->metrics[nn] ); 236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_count = 0; 240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->glyph_scripts = NULL; /* no need to free this one! */ 241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->face = NULL; 242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( globals ); 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_face_globals_get_metrics( AF_FaceGlobals globals, 250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt gindex, 251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt options, 252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics *ametrics ) 253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics metrics = NULL; 255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt gidx; 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptClass clazz; 257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt script = options & 15; 258295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner const FT_Offset script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) / 259295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner sizeof ( AF_SCRIPT_CLASSES_GET[0] ); 260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = AF_Err_Ok; 261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 263295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex >= (FT_ULong)globals->glyph_count ) 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = AF_Err_Invalid_Argument; 266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gidx = script; 270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( gidx == 0 || gidx + 1 >= script_max ) 271295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_LIST_NONE; 272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 273295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner clazz = AF_SCRIPT_CLASSES_GET[gidx]; 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( script == 0 ) 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project script = clazz->script; 276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics = globals->metrics[clazz->script]; 278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( metrics == NULL ) 279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* create the global metrics object when needed */ 281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = globals->face->memory; 282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_ALLOC( metrics, clazz->script_metrics_size ) ) 285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->clazz = clazz; 288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_metrics_init ) 290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = clazz->script_metrics_init( metrics, globals->face ); 292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( clazz->script_metrics_done ) 295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project clazz->script_metrics_done( metrics ); 296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( metrics ); 298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project globals->metrics[clazz->script] = metrics; 303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *ametrics = metrics; 307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 312295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_LOCAL_DEF( FT_Bool ) 313295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner af_face_globals_is_digit( AF_FaceGlobals globals, 314295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt gindex ) 315295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 316295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( gindex < (FT_ULong)globals->glyph_count ) 317295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner return (FT_Bool)( globals->glyph_scripts[gindex] & AF_DIGIT ); 318295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 319295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner return (FT_Bool)0; 320295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 321295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 322295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 324