afcjk.c revision aeb407daf3711a10a27f3bc2223c5eb05158076e
1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* afcjk.c */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* Auto-fitter hinting routines for CJK script (body). */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 7aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner/* Copyright 2006-2011 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 * The algorithm is based on akito's autohint patch, available here: 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * http://www.kde.gr.jp/~akito/patch/freetype2/ 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 24049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 25aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#include <ft2build.h> 26aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#include FT_ADVANCES_H 27aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#include FT_INTERNAL_DEBUG_H 28aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 29049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "aftypes.h" 30049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "aflatin.h" 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 32049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 33049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef AF_CONFIG_OPTION_CJK 34049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 35aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#undef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT 36aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "afcjk.h" 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "aferrors.h" 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 41aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#ifdef AF_CONFIG_OPTION_USE_WARPER 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "afwarp.h" 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 47aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* */ 48aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 49aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 50aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* messages during execution. */ 51aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* */ 52aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#undef FT_COMPONENT 53aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#define FT_COMPONENT trace_afcjk 54aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 55aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 56aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /*************************************************************************/ 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 58049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** C J K G L O B A L M E T R I C S *****/ 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 62049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 63049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 64aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 65aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Basically the Latin version with AF_CJKMetrics */ 66aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* to replace AF_LatinMetrics. */ 67aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 68aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOCAL_DEF( void ) 69aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_init_widths( AF_CJKMetrics metrics, 70aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Face face, 71aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_ULong charcode ) 72aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 73aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* scan the array of segments in each direction */ 74aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_GlyphHintsRec hints[1]; 75aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 76aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 77aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_glyph_hints_init( hints, face->memory ); 78aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 79aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner metrics->axis[AF_DIMENSION_HORZ].width_count = 0; 80aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner metrics->axis[AF_DIMENSION_VERT].width_count = 0; 81aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 82aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 83aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Error error; 84aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt glyph_index; 85aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner int dim; 86aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKMetricsRec dummy[1]; 87aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Scaler scaler = &dummy->root.scaler; 88aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 89aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 90aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner glyph_index = FT_Get_Char_Index( face, charcode ); 91aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( glyph_index == 0 ) 92aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner goto Exit; 93aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 94aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); 95aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( error || face->glyph->outline.n_points <= 0 ) 96aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner goto Exit; 97aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 98aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_ZERO( dummy ); 99aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 100aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dummy->units_per_em = metrics->units_per_em; 101aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 102aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->x_scale = 0x10000L; 103aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->y_scale = 0x10000L; 104aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->x_delta = 0; 105aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->y_delta = 0; 106aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 107aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->face = face; 108aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->render_mode = FT_RENDER_MODE_NORMAL; 109aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scaler->flags = 0; 110aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 111aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_glyph_hints_rescale( hints, (AF_ScriptMetrics)dummy ); 112aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 113aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner error = af_glyph_hints_reload( hints, &face->glyph->outline ); 114aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( error ) 115aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner goto Exit; 116aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 117aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) 118aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 119aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis axis = &metrics->axis[dim]; 120aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_AxisHints axhints = &hints->axis[dim]; 121aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Segment seg, limit, link; 122aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt num_widths = 0; 123aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 124aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 125aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner error = af_latin_hints_compute_segments( hints, (AF_Dimension)dim ); 126aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( error ) 127aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner goto Exit; 128aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 129aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_latin_hints_link_segments( hints, (AF_Dimension)dim ); 130aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 131aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner seg = axhints->segments; 132aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner limit = seg + axhints->num_segments; 133aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 134aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( ; seg < limit; seg++ ) 135aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 136aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner link = seg->link; 137aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 138aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* we only consider stem segments there! */ 139aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( link && link->link == seg && link > seg ) 140aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 141aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos dist; 142aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 143aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 144aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dist = seg->pos - link->pos; 145aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( dist < 0 ) 146aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dist = -dist; 147aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 148aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( num_widths < AF_CJK_MAX_WIDTHS ) 149aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->widths[num_widths++].org = dist; 150aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 151aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 152aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 153aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_sort_widths( num_widths, axis->widths ); 154aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->width_count = num_widths; 155aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 156aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 157aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner Exit: 158aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) 159aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 160aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis axis = &metrics->axis[dim]; 161aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos stdw; 162aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 163aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 164aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner stdw = ( axis->width_count > 0 ) ? axis->widths[0].org 165aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner : AF_LATIN_CONSTANT( metrics, 50 ); 166aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 167aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* let's try 20% of the smallest width */ 168aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->edge_distance_threshold = stdw / 5; 169aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->standard_width = stdw; 170aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->extra_light = 0; 171aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 172aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 173aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 174aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_glyph_hints_done( hints ); 175aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 176aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 177aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 178aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#define AF_CJK_MAX_TEST_CHARACTERS 32 179aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 180aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 181aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Each blue zone has two types of fill and unfill, this is, */ 182aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* filling the entire glyph square or not. */ 183aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 184aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner enum 185aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 186aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJK_BLUE_TYPE_FILL, 187aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJK_BLUE_TYPE_UNFILL, 188aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJK_BLUE_TYPE_MAX 189aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }; 190aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 191aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 192aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Put some common and representative Han Ideographs characters here. */ 193aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner static const FT_ULong af_cjk_hani_blue_chars[AF_CJK_BLUE_MAX] 194aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner [AF_CJK_BLUE_TYPE_MAX] 195aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner [AF_CJK_MAX_TEST_CHARACTERS] = 196aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 197aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 198aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 199aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x4ED6, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730, 200aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x5BF9, 0x5C0D, 0x5C31, 0x5E2D, 0x6211, 0x65F6, 0x6642, 0x6703, 201aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x6765, 0x70BA, 0x80FD, 0x8230, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019, 202aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x9F4A /* top fill */ 203aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 204aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 205aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x519B, 0x540C, 0x5DF2, 0x613F, 0x65E2, 0x661F, 0x662F, 0x666F, 206aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x6C11, 0x7167, 0x73B0, 0x73FE, 0x7406, 0x7528, 0x7F6E, 0x8981, 207aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x8ECD, 0x90A3, 0x914D, 0x91CC, 0x958B, 0x96F7, 0x9732, 0x9762, 208aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x987E /* top unfill */ 209aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 210aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 211aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 212aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 213aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x4E2A, 0x4E3A, 0x4EBA, 0x4ED6, 0x4EE5, 0x4EEC, 0x4F60, 0x4F86, 214aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x500B, 0x5011, 0x5230, 0x548C, 0x5927, 0x5BF9, 0x5C0D, 0x5C31, 215aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x6211, 0x65F6, 0x6642, 0x6709, 0x6765, 0x70BA, 0x8981, 0x8AAA, 216aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x8BF4 /* bottom fill */ 217aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 218aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 219aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x4E3B, 0x4E9B, 0x56E0, 0x5B83, 0x60F3, 0x610F, 0x7406, 0x751F, 220aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x7576, 0x770B, 0x7740, 0x7F6E, 0x8005, 0x81EA, 0x8457, 0x88E1, 221aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x8FC7, 0x8FD8, 0x8FDB, 0x9032, 0x904E, 0x9053, 0x9084, 0x91CC, 222aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x9762 /* bottom unfill */ 223aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 224aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 225aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#ifndef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT 226aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { {0x0000}, {0x0000} }, 227aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { {0x0000}, {0x0000} } 228aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#else 229aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 230aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 231aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x4E9B, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730, 232aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x5979, 0x5C06, 0x5C07, 0x5C31, 0x5E74, 0x5F97, 0x60C5, 0x6700, 233aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x6837, 0x6A23, 0x7406, 0x80FD, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019, 234aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x901A /* left fill */ 235aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 236aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 237aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x5373, 0x5417, 0x5427, 0x542C, 0x5462, 0x54C1, 0x54CD, 0x55CE, 238aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x5E08, 0x5E2B, 0x6536, 0x65AD, 0x65B7, 0x660E, 0x773C, 0x9593, 239aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x95F4, 0x9645, 0x9648, 0x9650, 0x9664, 0x9673, 0x968F, 0x969B, 240aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x96A8 /* left unfill */ 241aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 242aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 243aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 244aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 245aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x4E8B, 0x524D, 0x5B78, 0x5C06, 0x5C07, 0x60C5, 0x60F3, 0x6216, 246aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x653F, 0x65AF, 0x65B0, 0x6837, 0x6A23, 0x6C11, 0x6C92, 0x6CA1, 247aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x7136, 0x7279, 0x73B0, 0x73FE, 0x7403, 0x7B2C, 0x7D93, 0x8C01, 248aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x8D77 /* right fill */ 249aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }, 250aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 251aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x4F8B, 0x5225, 0x522B, 0x5236, 0x52A8, 0x52D5, 0x5417, 0x55CE, 252aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x589E, 0x6307, 0x660E, 0x671D, 0x671F, 0x6784, 0x7269, 0x786E, 253aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x79CD, 0x8ABF, 0x8C03, 0x8CBB, 0x8D39, 0x90A3, 0x90FD, 0x9593, 254aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 0x95F4 /* right unfill */ 255aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 256aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 257aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */ 258aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }; 259aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 260aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 261aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Calculate blue zones for all the CJK_BLUE_XXX's. */ 262aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 263aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner static void 264aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_init_blues( AF_CJKMetrics metrics, 265aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Face face, 266aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner const FT_ULong blue_chars 267aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner [AF_CJK_BLUE_MAX] 268aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner [AF_CJK_BLUE_TYPE_MAX] 269aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner [AF_CJK_MAX_TEST_CHARACTERS] ) 270aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 271aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos fills[AF_CJK_MAX_TEST_CHARACTERS]; 272aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos flats[AF_CJK_MAX_TEST_CHARACTERS]; 273aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 274aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int num_fills; 275aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int num_flats; 276aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 277aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int bb; 278aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKBlue blue; 279aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Error error; 280aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis axis; 281aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_GlyphSlot glyph = face->glyph; 282aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 283aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#ifdef FT_DEBUG_LEVEL_TRACE 284aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_String* cjk_blue_name[AF_CJK_BLUE_MAX] = { 285aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner (FT_String*)"top", 286aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner (FT_String*)"bottom", 287aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner (FT_String*)"left", 288aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner (FT_String*)"right" 289aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }; 290aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_String* cjk_blue_type_name[AF_CJK_BLUE_TYPE_MAX] = { 291aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner (FT_String*)"filled", 292aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner (FT_String*)"unfilled" 293aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner }; 294aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif 295aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 296aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 297aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* We compute the blues simply by loading each character from the */ 298aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* `blue_chars[blues]' string, then computing its extreme points */ 299aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* (depending blue zone type etc.). */ 300aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 301aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "cjk blue zones computation\n" )); 302aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "------------------------------------------------\n" )); 303aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 304aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( bb = 0; bb < AF_CJK_BLUE_MAX; bb++ ) 305aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 306aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int fill_type; 307aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos* blue_ref; 308aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos* blue_shoot; 309aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 310aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 311aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner num_fills = 0; 312aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner num_flats = 0; 313aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 314aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( fill_type = 0; fill_type < AF_CJK_BLUE_TYPE_MAX; fill_type++ ) 315aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 316aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner const FT_ULong* p = blue_chars[bb][fill_type]; 317aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner const FT_ULong* limit = p + AF_CJK_MAX_TEST_CHARACTERS; 318aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Bool fill = FT_BOOL( 319aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner fill_type == AF_CJK_BLUE_TYPE_FILL ); 320aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 321aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 322aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "cjk blue %s/%s\n", cjk_blue_name[bb], 323aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner cjk_blue_type_name[fill_type] )); 324aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 325aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 326aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( ; p < limit && *p; p++ ) 327aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 328aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt glyph_index; 329aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos best_pos; /* same as points.y */ 330aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int best_point; 331aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Vector* points; 332aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 333aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 334aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( " U+%lX...", *p )); 335aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 336aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* load the character in the face -- skip unknown or empty ones */ 337aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner glyph_index = FT_Get_Char_Index( face, *p ); 338aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( glyph_index == 0 ) 339aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 340aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "unavailable\n" )); 341aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 342aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 343aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 344aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE ); 345aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( error || glyph->outline.n_points <= 0 ) 346aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 347aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "no outline\n" )); 348aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 349aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 350aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 351aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* now compute min or max point indices and coordinates */ 352aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner points = glyph->outline.points; 353aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_point = -1; 354aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_pos = 0; /* make compiler happy */ 355aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 356aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 357aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int nn; 358aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int first = 0; 359aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int last = -1; 360aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 361aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 362aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( nn = 0; 363aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner nn < glyph->outline.n_contours; 364aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner first = last + 1, nn++ ) 365aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 366aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int pp; 367aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 368aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 369aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner last = glyph->outline.contours[nn]; 370aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 371aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Avoid single-point contours since they are never */ 372aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* rasterized. In some fonts, they correspond to mark */ 373aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* attachment points which are way outside of the glyph's */ 374aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* real outline. */ 375aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( last <= first ) 376aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 377aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 378aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner switch ( bb ) 379aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 380aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner case AF_CJK_BLUE_TOP: 381aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( pp = first; pp <= last; pp++ ) 382aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( best_point < 0 || points[pp].y > best_pos ) 383aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 384aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_point = pp; 385aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_pos = points[pp].y; 386aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 387aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner break; 388aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 389aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner case AF_CJK_BLUE_BOTTOM: 390aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( pp = first; pp <= last; pp++ ) 391aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( best_point < 0 || points[pp].y < best_pos ) 392aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 393aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_point = pp; 394aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_pos = points[pp].y; 395aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 396aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner break; 397aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 398aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner case AF_CJK_BLUE_LEFT: 399aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( pp = first; pp <= last; pp++ ) 400aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( best_point < 0 || points[pp].x < best_pos ) 401aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 402aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_point = pp; 403aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_pos = points[pp].x; 404aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 405aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner break; 406aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 407aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner case AF_CJK_BLUE_RIGHT: 408aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( pp = first; pp <= last; pp++ ) 409aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( best_point < 0 || points[pp].x > best_pos ) 410aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 411aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_point = pp; 412aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_pos = points[pp].x; 413aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 414aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner break; 415aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 416aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner default: 417aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ; 418aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 419aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 420aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "best_pos=%5ld\n", best_pos )); 421aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 422aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 423aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( fill ) 424aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner fills[num_fills++] = best_pos; 425aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else 426aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner flats[num_flats++] = best_pos; 427aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 428aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 429aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 430aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( num_flats == 0 && num_fills == 0 ) 431aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 432aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* 433aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * we couldn't find a single glyph to compute this blue zone, 434aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * we will simply ignore it then 435aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner */ 436aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "empty\n" )); 437aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 438aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 439aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 440aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* we have computed the contents of the `fill' and `flats' tables, */ 441aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* now determine the reference position of the blue -- */ 442aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* we simply take the median value after a simple sort */ 443aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_sort_pos( num_flats, flats ); 444aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_sort_pos( num_fills, fills ); 445aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 446aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_BOTTOM == bb ) 447aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis = &metrics->axis[AF_DIMENSION_VERT]; 448aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else 449aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis = &metrics->axis[AF_DIMENSION_HORZ]; 450aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 451aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue = & axis->blues[axis->blue_count]; 452aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue_ref = & blue->ref.org; 453aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue_shoot = & blue->shoot.org; 454aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 455aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->blue_count++; 456aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( num_flats == 0 ) 457aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 458aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_ref = fills[num_fills / 2]; 459aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_shoot = fills[num_fills / 2]; 460aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 461aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else if ( num_fills == 0 ) 462aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 463aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_ref = flats[num_flats / 2]; 464aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_shoot = flats[num_flats / 2]; 465aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 466aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else 467aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 468aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_ref = fills[num_fills / 2]; 469aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_shoot = flats[num_flats / 2]; 470aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 471aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 472aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* make sure blue_ref >= blue_shoot for top/right or */ 473aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* vice versa for bottom/left */ 474aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( *blue_shoot != *blue_ref ) 475aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 476aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos ref = *blue_ref; 477aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos shoot = *blue_shoot; 478aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Bool under_ref = FT_BOOL( shoot < ref ); 479aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 480aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 481aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( (AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_RIGHT == bb) ^ under_ref ) 482aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner *blue_shoot = *blue_ref = ( shoot + ref ) / 2; 483aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 484aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 485aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->flags = 0; 486aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( AF_CJK_BLUE_TOP == bb ) 487aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->flags |= AF_CJK_BLUE_IS_TOP; 488aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else if ( AF_CJK_BLUE_RIGHT == bb ) 489aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->flags |= AF_CJK_BLUE_IS_RIGHT; 490aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 491aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "-- cjk %s bluezone ref = %ld shoot = %ld\n", 492aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner cjk_blue_name[bb], *blue_ref, *blue_shoot )); 493aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 494aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 495aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner return; 496aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 497aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 498aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 499aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Basically the Latin version with type AF_CJKMetrics for metrics. */ 500aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOCAL_DEF( void ) 501aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_check_digits( AF_CJKMetrics metrics, 502aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Face face ) 503aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 504aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt i; 505aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Bool started = 0, same_width = 1; 506aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Fixed advance, old_advance = 0; 507aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 508aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 509aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* check whether all ASCII digits have the same advance width; */ 510aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* digit `0' is 0x30 in all supported charmaps */ 511aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( i = 0x30; i <= 0x39; i++ ) 512aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 513aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt glyph_index; 514aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 515aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 516aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner glyph_index = FT_Get_Char_Index( face, i ); 517aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( glyph_index == 0 ) 518aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 519aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 520aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( FT_Get_Advance( face, glyph_index, 521aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOAD_NO_SCALE | 522aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOAD_NO_HINTING | 523aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOAD_IGNORE_TRANSFORM, 524aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner &advance ) ) 525aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 526aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 527aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( started ) 528aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 529aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( advance != old_advance ) 530aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 531aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner same_width = 0; 532aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner break; 533aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 534aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 535aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else 536aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 537aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner old_advance = advance; 538aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner started = 1; 539aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 540aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 541aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 542aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner metrics->root.digits_have_same_width = same_width; 543aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 544aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 545aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 547aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_init( AF_CJKMetrics metrics, 548aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Face face ) 549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CharMap oldmap = face->charmap; 551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->units_per_em = face->units_per_EM; 554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) 556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->charmap = NULL; 557295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner else 558295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 559aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_init_widths( metrics, face, 0x7530 ); 560aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_init_blues( metrics, face, af_cjk_hani_blue_chars ); 561aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_check_digits( metrics, face ); 562295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Set_Charmap( face, oldmap ); 565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return AF_Err_Ok; 567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 571aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_scale_dim( AF_CJKMetrics metrics, 572aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Scaler scaler, 573aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Dimension dim ) 574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 575aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Fixed scale; 576aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos delta; 577aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis axis; 578aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt nn; 579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project axis = &metrics->axis[dim]; 582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_HORZ ) 584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 585aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scale = scaler->x_scale; 586aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta = scaler->x_delta; 587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 590aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scale = scaler->y_scale; 591aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta = scaler->y_delta; 592aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 593aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 594aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( axis->org_scale == scale && axis->org_delta == delta ) 595aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner return; 596aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 597aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->org_scale = scale; 598aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->org_delta = delta; 599aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 600aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->scale = scale; 601aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner axis->delta = delta; 602aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 603aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* scale the blue zones */ 604aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( nn = 0; nn < axis->blue_count; nn++ ) 605aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 606aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKBlue blue = &axis->blues[nn]; 607aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos dist; 608aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 609aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 610aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta; 611aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->ref.fit = blue->ref.cur; 612aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta; 613aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->shoot.fit = blue->shoot.cur; 614aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->flags &= ~AF_CJK_BLUE_ACTIVE; 615aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 616aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* a blue zone is only active if it is less than 3/4 pixels tall */ 617aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale ); 618aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( dist <= 48 && dist >= -48 ) 619aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 620aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos delta1, delta2; 621aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 622aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 623aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->ref.fit = FT_PIX_ROUND( blue->ref.cur ); 624aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 625aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* shoot is under shoot for cjk */ 626aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta1 = FT_DivFix( blue->ref.fit, scale ) - blue->shoot.org; 627aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = delta1; 628aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( delta1 < 0 ) 629aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = -delta2; 630aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 631aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = FT_MulFix( delta2, scale ); 632aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 633aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "delta: %d", delta1 )); 634aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( delta2 < 32 ) 635aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = 0; 636aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#if 0 637aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else if ( delta2 < 64 ) 638aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 ); 639aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif 640aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else 641aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = FT_PIX_ROUND( delta2 ); 642aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "/%d\n", delta2 )); 643aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 644aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( delta1 < 0 ) 645aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner delta2 = -delta2; 646aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 647aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->shoot.fit = blue->ref.fit - delta2; 648aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 649aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]: " 650aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner "ref: cur=%.2f fit=%.2f shoot: cur=%.2f fit=%.2f\n", 651aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V', 652aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner nn, blue->ref.org, blue->shoot.org, 653aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->ref.cur / 64.0, blue->ref.fit / 64.0, 654aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 )); 655aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 656aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue->flags |= AF_CJK_BLUE_ACTIVE; 657aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 661049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( void ) 663aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_metrics_scale( AF_CJKMetrics metrics, 664aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Scaler scaler ) 665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->root.scaler = *scaler; 667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ ); 669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT ); 670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 675049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** C J K G L Y P H A N A L Y S I S *****/ 677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 680049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 681049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 682049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hints_compute_segments( AF_GlyphHints hints, 683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 684049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 685049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_AxisHints axis = &hints->axis[dim]; 686049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment segments = axis->segments; 687049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment segment_limit = segments + axis->num_segments; 688049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 689049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg; 690049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 691049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 692049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_latin_hints_compute_segments( hints, dim ); 693049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 694049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 695049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 696049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* a segment is round if it doesn't have successive */ 697049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* on-curve points. */ 698049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg = segments; seg < segment_limit; seg++ ) 699049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 700049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Point pt = seg->first; 701049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Point last = seg->last; 702049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Flags f0 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); 703049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Flags f1; 704049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 705049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 706049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->flags &= ~AF_EDGE_ROUND; 707049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 708049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; pt != last; f0 = f1 ) 709049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 710049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project pt = pt->next; 711049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project f1 = (AF_Flags)(pt->flags & AF_FLAG_CONTROL); 712049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 713049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !f0 && !f1 ) 714049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 715049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 716049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( pt == last ) 717049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->flags |= AF_EDGE_ROUND; 718049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 719049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 720049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 721049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return AF_Err_Ok; 722049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 723049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 724049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 725049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 726049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hints_link_segments( AF_GlyphHints hints, 727049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 728049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 729049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_AxisHints axis = &hints->axis[dim]; 730049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment segments = axis->segments; 731049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment segment_limit = segments + axis->num_segments; 732049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Direction major_dir = axis->major_dir; 733049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg1, seg2; 734049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos len_threshold; 735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist_threshold; 736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 738049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); 739049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist_threshold = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale 741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : hints->y_scale; 742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist_threshold = FT_DivFix( 64 * 3, dist_threshold ); 743049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now compare each segment to the others */ 745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg1 = segments; seg1 < segment_limit; seg1++ ) 746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the fake segments are for metrics hinting only */ 748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg1->first == seg1->last ) 749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg1->dir != major_dir ) 752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 753049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 754049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg2 = segments; seg2 < segment_limit; seg2++ ) 755049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg2 != seg1 && seg1->dir + seg2->dir == 0 ) 756049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 757049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist = seg2->pos - seg1->pos; 758049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 759049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 760049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 0 ) 761049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 762049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 763049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 764049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos min = seg1->min_coord; 765049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos max = seg1->max_coord; 766049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos len; 767049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 768049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( min < seg2->min_coord ) 770049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project min = seg2->min_coord; 771049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 772049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( max > seg2->max_coord ) 773049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project max = seg2->max_coord; 774049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 775049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project len = max - min; 776049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( len >= len_threshold ) 777049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 778049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist * 8 < seg1->score * 9 && 779049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( dist * 8 < seg1->score * 7 || seg1->len < len ) ) 780049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg1->score = dist; 782049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg1->len = len; 783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg1->link = seg2; 784049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 785049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 786049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist * 8 < seg2->score * 9 && 787049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( dist * 8 < seg2->score * 7 || seg2->len < len ) ) 788049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 789049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2->score = dist; 790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2->len = len; 791049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2->link = seg1; 792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 796049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 797049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 798049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 799049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * now compute the `serif' segments 800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * In Hanzi, some strokes are wider on one or both of the ends. 802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * We either identify the stems on the ends as serifs or remove 803049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * the linkage, depending on the length of the stems. 804049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment link1, link2; 809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg1 = segments; seg1 < segment_limit; seg1++ ) 812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project link1 = seg1->link; 814049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !link1 || link1->link != seg1 || link1->pos <= seg1->pos ) 815049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg1->score >= dist_threshold ) 818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg2 = segments; seg2 < segment_limit; seg2++ ) 821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg2->pos > seg1->pos || seg1 == seg2 ) 823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project link2 = seg2->link; 826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !link2 || link2->link != seg2 || link2->pos < link1->pos ) 827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 829049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg1->pos == seg2->pos && link1->pos == link2->pos ) 830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg2->score <= seg1->score || seg1->score * 4 <= seg2->score ) 833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* seg2 < seg1 < link1 < link2 */ 836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg1->len >= seg2->len * 3 ) 838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg; 840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg = segments; seg < segment_limit; seg++ ) 843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment link = seg->link; 845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( link == seg2 ) 848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->link = 0; 850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->serif = link1; 851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( link == link2 ) 853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->link = 0; 855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->serif = seg1; 856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg1->link = link1->link = 0; 862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg1 = segments; seg1 < segment_limit; seg1++ ) 870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2 = seg1->link; 872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg2 ) 874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2->num_linked++; 876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg2->link != seg1 ) 877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg1->link = 0; 879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg2->score < dist_threshold || seg1->score < seg2->score * 4 ) 881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg1->serif = seg2->link; 882049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 883049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2->num_linked--; 884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hints_compute_edges( AF_GlyphHints hints, 892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 893049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 894049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_AxisHints axis = &hints->axis[dim]; 895049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = AF_Err_Ok; 896049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = hints->memory; 897aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis laxis = &((AF_CJKMetrics)hints->metrics)->axis[dim]; 898049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 899049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment segments = axis->segments; 900049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment segment_limit = segments + axis->num_segments; 901049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg; 902049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 903049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed scale; 904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos edge_distance_threshold; 905049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 906049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project axis->num_edges = 0; 908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale 910049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : hints->y_scale; 911049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 913049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 914049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We begin by generating a sorted table of edges for the current */ 915049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* direction. To do so, we simply scan each segment and try to find */ 916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* an edge in our table that corresponds to its position. */ 917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If no edge is found, we create and insert a new edge in the */ 919049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* sorted table. Otherwise, we simply add the segment to the edge's */ 920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* list which is then processed in the second step to compute the */ 921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* edge's properties. */ 922049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Note that the edges table is sorted along the segment/edge */ 924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* position. */ 925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold, 929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project scale ); 930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge_distance_threshold > 64 / 4 ) 931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge_distance_threshold = FT_DivFix( 64 / 4, scale ); 932049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 933049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge_distance_threshold = laxis->edge_distance_threshold; 934049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( seg = segments; seg < segment_limit; seg++ ) 936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge found = 0; 938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos best = 0xFFFFU; 939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int ee; 940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 941049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 942049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* look for an edge corresponding to the segment */ 943049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ee = 0; ee < axis->num_edges; ee++ ) 944049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 945049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge = axis->edges + ee; 946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist; 947049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 948049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 949049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->dir != seg->dir ) 950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 951049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 952049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = seg->pos - edge->fpos; 953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 0 ) 954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = -dist; 955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < edge_distance_threshold && dist < best ) 957049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 958049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment link = seg->link; 959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 961049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check whether all linked segments of the candidate edge */ 962049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* can make a single edge. */ 963049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( link ) 964049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 965049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg1 = edge->first; 966049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment link1; 967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist2 = 0; 968049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 970049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 971049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project link1 = seg1->link; 973049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( link1 ) 974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 975049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist2 = AF_SEGMENT_DIST( link, link1 ); 976049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist2 >= edge_distance_threshold ) 977049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 978049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 979049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 980049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( ( seg1 = seg1->edge_next ) != edge->first ); 981049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 982049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist2 >= edge_distance_threshold ) 983049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 984049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 985049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 986049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project best = dist; 987049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project found = edge; 988049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 989049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 990049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 991049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !found ) 992049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 993049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge; 994049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 995049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 996049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* insert a new edge in the list and */ 997049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* sort according to the position */ 998049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_axis_hints_new_edge( axis, seg->pos, 999049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Direction)seg->dir, 1000049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project memory, &edge ); 1001049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1002049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1003049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1004049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* add the segment to the new edge's list */ 1005049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ZERO( edge ); 1006049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1007049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->first = seg; 1008049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->last = seg; 1009049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->fpos = seg->pos; 1010049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); 1011049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->edge_next = seg; 1012049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->dir = seg->dir; 1013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if an edge was found, simply add the segment to the edge's */ 1017049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* list */ 1018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->edge_next = found->first; 1019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project found->last->edge_next = seg; 1020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project found->last = seg; 1021049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 1025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Good, we now compute each edge's properties according to segments */ 1027049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* found on its position. Basically, these are as follows. */ 1028049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1029049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* - edge's main direction */ 1030049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* - stem edge, serif edge or both (which defaults to stem then) */ 1031049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* - rounded edge, straight or both (which defaults to straight) */ 1032049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* - link for edge */ 1033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1034049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 1035049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1036049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* first of all, set the `edge' field in each segment -- this is */ 1037049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* required in order to compute edge links */ 1038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1039049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Note that removing this loop and setting the `edge' field of each */ 1040049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* segment directly in the code above slows down execution speed for */ 1041049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* some reasons on platforms like the Sun. */ 1042049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1043049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1044049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edges = axis->edges; 1045049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge_limit = edges + axis->num_edges; 1046049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge; 1047049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1048049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1049049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( edge = edges; edge < edge_limit; edge++ ) 1050049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1051049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg = edge->first; 1052049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg ) 1053049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 1054049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1055049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg->edge = edge; 1056049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg = seg->edge_next; 1057049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1058049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( seg != edge->first ); 1059049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1060049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1061049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now compute each edge properties */ 1062049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( edge = edges; edge < edge_limit; edge++ ) 1063049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1064049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int is_round = 0; /* does it contain round segments? */ 1065049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int is_straight = 0; /* does it contain straight segments? */ 1066049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1067049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1068049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg = edge->first; 1069049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1070049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 1071049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1072049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool is_serif; 1073049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1074049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1075049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check for roundness of segment */ 1076049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg->flags & AF_EDGE_ROUND ) 1077049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project is_round++; 1078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project is_straight++; 1080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check for links -- if seg->serif is set, then seg->link must */ 1082049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* be ignored */ 1083049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project is_serif = (FT_Bool)( seg->serif && seg->serif->edge != edge ); 1084049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1085049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg->link || is_serif ) 1086049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1087049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge2; 1088049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg2; 1089049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1090049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1091049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = edge->link; 1092049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2 = seg->link; 1093049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1094049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( is_serif ) 1095049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1096049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg2 = seg->serif; 1097049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = edge->serif; 1098049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1099049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge2 ) 1101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos edge_delta; 1103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos seg_delta; 1104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge_delta = edge->fpos - edge2->fpos; 1107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge_delta < 0 ) 1108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge_delta = -edge_delta; 1109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg_delta = AF_SEGMENT_DIST( seg, seg2 ); 1111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( seg_delta < edge_delta ) 1113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = seg2->edge; 1114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = seg2->edge; 1117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( is_serif ) 1119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->serif = edge2; 1121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2->flags |= AF_EDGE_SERIF; 1122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->link = edge2; 1125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg = seg->edge_next; 1128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( seg != edge->first ); 1130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* set the round/straight flags */ 1132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->flags = AF_EDGE_NORMAL; 1133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( is_round > 0 && is_round >= is_straight ) 1135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->flags |= AF_EDGE_ROUND; 1136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* get rid of serifs if link is set */ 1138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: This gets rid of many unpleasant artefacts! */ 1139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Example: the `c' in cour.pfa at size 13 */ 1140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->serif && edge->link ) 1142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->serif = 0; 1143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hints_detect_features( AF_GlyphHints hints, 1153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 1154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_cjk_hints_compute_segments( hints, dim ); 1159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !error ) 1160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hints_link_segments( hints, dim ); 1162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_cjk_hints_compute_edges( hints, dim ); 1164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1169aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOCAL_DEF( void ) 1170aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_hints_compute_blue_edges( AF_GlyphHints hints, 1171aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKMetrics metrics, 1172aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Dimension dim ) 1173aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1174aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_AxisHints axis = &hints->axis[dim]; 1175aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Edge edge = axis->edges; 1176aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Edge edge_limit = edge + axis->num_edges; 1177aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis cjk = &metrics->axis[dim]; 1178aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Fixed scale = cjk->scale; 1179aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos best_dist0; /* initial threshold */ 1180aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1181aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1182aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* compute the initial threshold as a fraction of the EM size */ 1183aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale ); 1184aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1185aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( best_dist0 > 64 / 2 ) /* maximum 1/2 pixel */ 1186aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_dist0 = 64 / 2; 1187aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1188aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* compute which blue zones are active, i.e. have their scaled */ 1189aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* size < 3/4 pixels */ 1190aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1191aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* If the distant between an edge and a blue zone is shorter than */ 1192aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* best_dist0, set the blue zone for the edge. Then search for */ 1193aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* the blue zone with the smallest best_dist to the edge. */ 1194aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1195aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( ; edge < edge_limit; edge++ ) 1196aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1197aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_UInt bb; 1198aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Width best_blue = NULL; 1199aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos best_dist = best_dist0; 1200aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1201aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1202aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( bb = 0; bb < cjk->blue_count; bb++ ) 1203aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1204aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKBlue blue = cjk->blues + bb; 1205aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Bool is_top_right_blue, is_major_dir; 1206aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1207aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1208aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* skip inactive blue zones (i.e., those that are too small) */ 1209aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( !( blue->flags & AF_CJK_BLUE_ACTIVE ) ) 1210aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 1211aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1212aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* if it is a top zone, check for right edges -- if it is a bottom */ 1213aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* zone, check for left edges */ 1214aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* */ 1215aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* of course, that's for TrueType */ 1216aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner is_top_right_blue = 1217aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_BOOL( ( ( blue->flags & AF_CJK_BLUE_IS_TOP ) != 0 ) || 1218aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ( ( blue->flags & AF_CJK_BLUE_IS_RIGHT ) != 0 ) ); 1219aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); 1220aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1221aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* if it is a top zone, the edge must be against the major */ 1222aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* direction; if it is a bottom zone, it must be in the major */ 1223aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* direction */ 1224aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( is_top_right_blue ^ is_major_dir ) 1225aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1226aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos dist; 1227aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Width compare; 1228aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1229aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1230aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Compare the edge to the closest blue zone type */ 1231aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( FT_ABS( edge->fpos - blue->ref.org ) > 1232aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_ABS( edge->fpos - blue->shoot.org ) ) 1233aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner compare = &blue->shoot; 1234aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else 1235aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner compare = &blue->ref; 1236aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1237aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dist = edge->fpos - compare->org; 1238aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( dist < 0 ) 1239aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dist = -dist; 1240aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1241aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dist = FT_MulFix( dist, scale ); 1242aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( dist < best_dist ) 1243aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1244aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_dist = dist; 1245aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner best_blue = compare; 1246aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1247aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1248aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1249aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1250aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( best_blue ) 1251aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge->blue_edge = best_blue; 1252aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1253aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1254aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1255aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 1257aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_hints_init( AF_GlyphHints hints, 1258aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKMetrics metrics ) 1259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Render_Mode mode; 1261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt32 scaler_flags, other_flags; 1262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_rescale( hints, (AF_ScriptMetrics)metrics ); 1265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 1267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * correct x_scale and y_scale when needed, since they may have 1268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * been modified af_cjk_scale_dim above 1269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 1270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale; 1271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta; 1272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale; 1273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta; 1274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* compute flags depending on render mode, etc. */ 1276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project mode = metrics->root.scaler.render_mode; 1277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1278aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#ifdef AF_CONFIG_OPTION_USE_WARPER 1279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V ) 1280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL; 1281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project scaler_flags = hints->scaler_flags; 1284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project other_flags = 0; 1285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 1287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * We snap the width of vertical stems for the monochrome and 1288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * horizontal LCD rendering targets only. 1289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 1290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD ) 1291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project other_flags |= AF_LATIN_HINTS_HORZ_SNAP; 1292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 1294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * We snap the width of horizontal stems for the monochrome and 1295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * vertical LCD rendering targets only. 1296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 1297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V ) 1298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project other_flags |= AF_LATIN_HINTS_VERT_SNAP; 1299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 1301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * We adjust stems to full pixels only if we don't use the `light' mode. 1302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 1303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( mode != FT_RENDER_MODE_LIGHT ) 1304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project other_flags |= AF_LATIN_HINTS_STEM_ADJUST; 1305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( mode == FT_RENDER_MODE_MONO ) 1307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project other_flags |= AF_LATIN_HINTS_MONO; 1308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project scaler_flags |= AF_SCALER_FLAG_NO_ADVANCE; 1310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints->scaler_flags = scaler_flags; 1312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints->other_flags = other_flags; 1313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 0; 1315049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1316049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1317049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1318049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 1321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** C J K G L Y P H G R I D - F I T T I N G *****/ 1322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 1323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1326049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* snap a given width in scaled coordinates to one of the */ 1327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* current standard widths */ 1328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1329049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Pos 1330049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_snap_width( AF_Width widths, 1331049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int count, 1332049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos width ) 1333049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int n; 1335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos best = 64 + 32 + 2; 1336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos reference = width; 1337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos scaled; 1338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < count; n++ ) 1341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos w; 1343049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist; 1344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1346049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project w = widths[n].cur; 1347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = width - w; 1348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 0 ) 1349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = -dist; 1350049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < best ) 1351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project best = dist; 1353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project reference = w; 1354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1356049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project scaled = FT_PIX_ROUND( reference ); 1358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( width >= reference ) 1360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1361049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( width < scaled + 48 ) 1362049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project width = reference; 1363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1364049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1366049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( width > scaled - 48 ) 1367049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project width = reference; 1368049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1369049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return width; 1371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* compute the snapped width of a given stem */ 1375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Pos 1377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_compute_stem_width( AF_GlyphHints hints, 1378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim, 1379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos width, 1380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge_Flags base_flags, 1381049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge_Flags stem_flags ) 1382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1383aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKMetrics metrics = (AF_CJKMetrics) hints->metrics; 1384aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKAxis axis = & metrics->axis[dim]; 1385aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos dist = width; 1386aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Int sign = 0; 1387aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT ); 1388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1389049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( base_flags ); 1390049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( stem_flags ); 1391049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1392049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1393049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) 1394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return width; 1395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 0 ) 1397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = -width; 1399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project sign = 1; 1400049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1401049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1402049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) || 1403049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) ) 1404049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1405049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* smooth hinting process: very lightly quantize the stem width */ 1406049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1407049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( axis->width_count > 0 ) 1408049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1409049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_ABS( dist - axis->widths[0].cur ) < 40 ) 1410049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1411049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = axis->widths[0].cur; 1412049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 48 ) 1413049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = 48; 1414049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Done_Width; 1416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1417049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 54 ) 1420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist += ( 54 - dist ) / 2 ; 1421049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( dist < 3 * 64 ) 1422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta; 1424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = dist & 63; 1427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist &= -64; 1428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( delta < 10 ) 1430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist += delta; 1431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( delta < 22 ) 1432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist += 10; 1433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( delta < 42 ) 1434049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist += delta; 1435049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( delta < 54 ) 1436049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist += 54; 1437049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1438049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist += delta; 1439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* strong hinting process: snap the stem width to integer pixels */ 1444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = af_cjk_snap_width( axis->widths, axis->width_count, dist ); 1446049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( vertical ) 1448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* in the case of vertical hinting, always round */ 1450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the stem heights to integer pixels */ 1451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist >= 64 ) 1453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = ( dist + 16 ) & ~63; 1454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = 64; 1456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1459049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( AF_LATIN_HINTS_DO_MONO( hints ) ) 1460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* monochrome horizontal hinting: snap widths to integer pixels */ 1462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* with a different threshold */ 1463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 64 ) 1465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = 64; 1466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = ( dist + 32 ) & ~63; 1468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* for horizontal anti-aliased hinting, we adopt a more subtle */ 1472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* approach: we strengthen small stems, round stems whose size */ 1473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* is between 1 and 2 pixels to an integer, otherwise nothing */ 1474049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1475049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dist < 48 ) 1476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = ( dist + 64 ) >> 1; 1477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( dist < 128 ) 1479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = ( dist + 22 ) & ~63; 1480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* round otherwise to prevent color fringes in LCD mode */ 1482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = ( dist + 32 ) & ~63; 1483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1485049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Done_Width: 1488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( sign ) 1489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist = -dist; 1490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return dist; 1492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* align one stem edge relative to the previous stem edge */ 1496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1497049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 1498049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_linked_edge( AF_GlyphHints hints, 1499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim, 1500049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge base_edge, 1501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge stem_edge ) 1502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist = stem_edge->opos - base_edge->opos; 1504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1505049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos fitted_width = af_cjk_compute_stem_width( 1506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project hints, dim, dist, 1507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Edge_Flags)base_edge->flags, 1508049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Edge_Flags)stem_edge->flags ); 1509049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1510049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1511049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project stem_edge->pos = base_edge->pos + fitted_width; 1512049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1513049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1514049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1515049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 1516049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_serif_edge( AF_GlyphHints hints, 1517049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge base, 1518049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge serif ) 1519049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1520049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( hints ); 1521049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1522049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project serif->pos = base->pos + ( serif->opos - base->opos ); 1523049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1524049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1525049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1526049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1527049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1528049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1529049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /**** ****/ 1530049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /**** E D G E H I N T I N G ****/ 1531049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /**** ****/ 1532049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1533049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1534049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1535049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1536049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1537049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_LIGHT_MODE_MAX_HORZ_GAP 9 1538049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_LIGHT_MODE_MAX_VERT_GAP 15 1539049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_LIGHT_MODE_MAX_DELTA_ABS 14 1540049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1541049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1542049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Pos 1543049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_hint_normal_stem( AF_GlyphHints hints, 1544049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge, 1545049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge2, 1546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos anchor, 1547049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 1548049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos org_len, cur_len, org_center; 1550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos cur_pos1, cur_pos2; 1551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos d_off1, u_off1, d_off2, u_off2, delta; 1552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos offset; 1553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos threshold = 64; 1554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) 1557049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1558049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( edge->flags & AF_EDGE_ROUND ) && 1559049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( edge2->flags & AF_EDGE_ROUND ) ) 1560049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1561049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_VERT ) 1562049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP; 1563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP; 1565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_VERT ) 1569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project threshold = 64 - AF_LIGHT_MODE_MAX_HORZ_GAP / 3; 1570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1571049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project threshold = 64 - AF_LIGHT_MODE_MAX_VERT_GAP / 3; 1572049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1573049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1575049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project org_len = edge2->opos - edge->opos; 1576049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur_len = af_cjk_compute_stem_width( hints, dim, org_len, 1577049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Edge_Flags)edge->flags, 1578049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Edge_Flags)edge2->flags ); 1579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project org_center = ( edge->opos + edge2->opos ) / 2 + anchor; 1581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur_pos1 = org_center - cur_len / 2; 1582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur_pos2 = cur_pos1 + cur_len; 1583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d_off1 = cur_pos1 - FT_PIX_FLOOR( cur_pos1 ); 1584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d_off2 = cur_pos2 - FT_PIX_FLOOR( cur_pos2 ); 1585049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project u_off1 = 64 - d_off1; 1586049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project u_off2 = 64 - d_off2; 1587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = 0; 1588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1590049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( d_off1 == 0 || d_off2 == 0 ) 1591049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1592049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1593049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( cur_len <= threshold ) 1594049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1595049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( d_off2 < cur_len ) 1596049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1597049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( u_off1 <= d_off2 ) 1598049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = u_off1; 1599049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1600049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = -d_off2; 1601049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1602049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1603049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1604049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1605049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1606049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( threshold < 64 ) 1607049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1608049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( d_off1 >= threshold || u_off1 >= threshold || 1609049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d_off2 >= threshold || u_off2 >= threshold ) 1610049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1611049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1612049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1613049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project offset = cur_len % 64; 1614049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1615049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( offset < 32 ) 1616049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1617049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( u_off1 <= offset || d_off2 <= offset ) 1618049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1619049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1620049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1621049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project offset = 64 - threshold; 1622049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1623049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d_off1 = threshold - u_off1; 1624049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project u_off1 = u_off1 - offset; 1625049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project u_off2 = threshold - d_off2; 1626049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d_off2 = d_off2 - offset; 1627049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1628049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( d_off1 <= u_off1 ) 1629049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project u_off1 = -d_off1; 1630049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1631049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( d_off2 <= u_off2 ) 1632049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project u_off2 = -d_off2; 1633049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1634049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_ABS( u_off1 ) <= FT_ABS( u_off2 ) ) 1635049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = u_off1; 1636049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1637049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = u_off2; 1638049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1639049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1640049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1641049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 1 1642049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ) 1643049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1644049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( delta > AF_LIGHT_MODE_MAX_DELTA_ABS ) 1645049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = AF_LIGHT_MODE_MAX_DELTA_ABS; 1646049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( delta < -AF_LIGHT_MODE_MAX_DELTA_ABS ) 1647049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = -AF_LIGHT_MODE_MAX_DELTA_ABS; 1648049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1649049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1650049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1651049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur_pos1 += delta; 1652049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1653049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->opos < edge2->opos ) 1654049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1655049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->pos = cur_pos1; 1656049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2->pos = cur_pos1 + cur_len; 1657049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->pos = cur_pos1 + cur_len; 1661049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2->pos = cur_pos1; 1662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1663049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1664049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return delta; 1665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 1669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hint_edges( AF_GlyphHints hints, 1670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 1671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_AxisHints axis = &hints->axis[dim]; 1673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edges = axis->edges; 1674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge_limit = edges + axis->num_edges; 1675295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_PtrDist n_edges; 1676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge; 1677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge anchor = 0; 1678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta = 0; 1679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int skipped = 0; 1680aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Bool has_last_stem = FALSE; 1681aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Pos last_stem_pos = 0; 1682aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1684aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* we begin by aligning all stems relative to the blue zone */ 1685aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "==== cjk hinting %s edges =====\n", 1686aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" )); 1687aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1688aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( AF_HINTS_DO_BLUES( hints ) ) 1689aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1690aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner for ( edge = edges; edge < edge_limit; edge++ ) 1691aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1692aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Width blue; 1693aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_Edge edge1, edge2; 1694aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1695aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1696aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( edge->flags & AF_EDGE_DONE ) 1697aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 1698aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1699aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue = edge->blue_edge; 1700aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1 = NULL; 1701aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge2 = edge->link; 1702aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1703aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( blue ) 1704aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1705aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1 = edge; 1706aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1707aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner else if ( edge2 && edge2->blue_edge ) 1708aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1709aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner blue = edge2->blue_edge; 1710aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1 = edge2; 1711aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge2 = edge; 1712aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1713aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1714aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( !edge1 ) 1715aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 1716aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1717aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "CJKBLUE: edge %d @%d (opos=%.2f) snapped to (%.2f), " 1718aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner "was (%.2f)\n", 1719aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1-edges, edge1->fpos, edge1->opos / 64.0, blue->fit / 64.0, 1720aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1->pos / 64.0 )); 1721aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1722aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1->pos = blue->fit; 1723aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge1->flags |= AF_EDGE_DONE; 1724aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1725aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( edge2 && !edge2->blue_edge ) 1726aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1727aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_align_linked_edge( hints, dim, edge1, edge2 ); 1728aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge2->flags |= AF_EDGE_DONE; 1729aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1730aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1731aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( !anchor ) 1732aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner anchor = edge; 1733aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1734aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now we align all stem edges. */ 1737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( edge = edges; edge < edge_limit; edge++ ) 1738049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1739049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge2; 1740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->flags & AF_EDGE_DONE ) 1743049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 1744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* skip all non-stem edges */ 1746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = edge->link; 1747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !edge2 ) 1748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project skipped++; 1750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 1751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1753aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Some CJK characters have so many stems that 1754aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * the hinter is likely to merge two adjacent ones. 1755aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * To solve this problem, if either edge of a stem 1756aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * is too close to the previous one, we avoid 1757aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * aligning the two edges, but rather interpolate 1758aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * their locations at the end of this function in 1759aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * order to preserve the space between the stems. 1760aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner */ 1761aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( has_last_stem && 1762aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ( edge->pos < last_stem_pos + 64 || 1763aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge2->pos < last_stem_pos + 64 ) ) 1764aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1765aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner skipped++; 1766aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 1767aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1768aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now align the stem */ 1770aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* this should not happen, but it's better to be safe */ 1771aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner if ( edge2->blue_edge ) 1772aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { 1773aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges )); 1774aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 1775aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_align_linked_edge( hints, dim, edge2, edge ); 1776aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner edge->flags |= AF_EDGE_DONE; 1777aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner continue; 1778aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner } 1779049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1780049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge2 < edge ) 1781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1782049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_linked_edge( hints, dim, edge2, edge ); 1783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->flags |= AF_EDGE_DONE; 1784aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* We rarely reaches here it seems; 1785aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * usually the two edges belonging 1786aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * to one stem are marked as DONE together 1787aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner */ 1788aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner has_last_stem = TRUE; 1789aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner last_stem_pos = edge->pos; 1790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 1791049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim != AF_DIMENSION_VERT && !anchor ) 1794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1796049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 1797049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( fixedpitch ) 1798049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1799049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge left = edge; 1800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge right = edge_limit - 1; 1801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_EdgeRec left1, left2, right1, right2; 1802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos target, center1, center2; 1803049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta1, delta2, d1, d2; 1804049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( right > left && !right->link ) 1807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right--; 1808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project left1 = *left; 1810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project left2 = *left->link; 1811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right1 = *right->link; 1812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right2 = *right; 1813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1814049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = ( ( ( hinter->pp2.x + 32 ) & -64 ) - hinter->pp2.x ) / 2; 1815049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project target = left->opos + ( right->opos - left->opos ) / 2 + delta - 16; 1816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta1 = delta; 1818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta1 += af_hint_normal_stem( hints, left, left->link, 1819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta1, 0 ); 1820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( left->link != right ) 1822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_hint_normal_stem( hints, right->link, right, delta1, 0 ); 1823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project center1 = left->pos + ( right->pos - left->pos ) / 2; 1825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( center1 >= target ) 1827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta2 = delta - 32; 1828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1829049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta2 = delta + 32; 1830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta2 += af_hint_normal_stem( hints, &left1, &left2, delta2, 0 ); 1832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( delta1 != delta2 ) 1834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( left->link != right ) 1836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_hint_normal_stem( hints, &right1, &right2, delta2, 0 ); 1837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project center2 = left1.pos + ( right2.pos - left1.pos ) / 2; 1839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d1 = center1 - target; 1841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project d2 = center2 - target; 1842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_ABS( d2 ) < FT_ABS( d1 ) ) 1844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project left->pos = left1.pos; 1846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project left->link->pos = left2.pos; 1847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( left->link != right ) 1849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right->link->pos = right1.pos; 1851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right->pos = right2.pos; 1852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta1 = delta2; 1855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = delta1; 1859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right->link->flags |= AF_EDGE_DONE; 1860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project right->flags |= AF_EDGE_DONE; 1861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* 0 */ 1865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = af_hint_normal_stem( hints, edge, edge2, 0, 1867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_DIMENSION_HORZ ); 1868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_hint_normal_stem( hints, edge, edge2, delta, dim ); 1871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 1873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project printf( "stem (%d,%d) adjusted (%.1f,%.1f)\n", 1874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge - edges, edge2 - edges, 1875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( edge->pos - edge->opos ) / 64.0, 1876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( edge2->pos - edge2->opos ) / 64.0 ); 1877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project anchor = edge; 1880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->flags |= AF_EDGE_DONE; 1881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2->flags |= AF_EDGE_DONE; 1882aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner has_last_stem = TRUE; 1883aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner last_stem_pos = edge2->pos; 1884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* make sure that lowercase m's maintain their symmetry */ 1887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* In general, lowercase m's have six vertical edges if they are sans */ 1889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* serif, or twelve if they are with serifs. This implementation is */ 1890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* based on that assumption, and seems to work very well with most */ 1891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* faces. However, if for a certain face this assumption is not */ 1892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* true, the m is just rendered like before. In addition, any stem */ 1893049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* correction will only be applied to symmetrical glyphs (even if the */ 1894049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph is not an m), so the potential for unwanted distortion is */ 1895049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* relatively low. */ 1896049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1897049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We don't handle horizontal edges since we can't easily assure that */ 1898049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the third (lowest) stem aligns with the base line; it might end up */ 1899049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* one pixel higher or lower. */ 1900049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1901049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_edges = edge_limit - edges; 1902049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) ) 1903049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge1, edge2, edge3; 1905049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dist1, dist2, span; 1906049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_edges == 6 ) 1909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1910049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge1 = edges; 1911049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = edges + 2; 1912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3 = edges + 4; 1913049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1914049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1915049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge1 = edges + 1; 1917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2 = edges + 5; 1918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3 = edges + 9; 1919049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist1 = edge2->opos - edge1->opos; 1922049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project dist2 = edge3->opos - edge2->opos; 1923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project span = dist1 - dist2; 1925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( span < 0 ) 1926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project span = -span; 1927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge1->link == edge1 + 1 && 1929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge2->link == edge2 + 1 && 1930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3->link == edge3 + 1 && span < 8 ) 1931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1932049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = edge3->pos - ( 2 * edge2->pos - edge1->pos ); 1933049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3->pos -= delta; 1934049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge3->link ) 1935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3->link->pos -= delta; 1936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* move the serifs along with the stem */ 1938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_edges == 12 ) 1939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( edges + 8 )->pos -= delta; 1941049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( edges + 11 )->pos -= delta; 1942049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1943049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1944049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3->flags |= AF_EDGE_DONE; 1945049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge3->link ) 1946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge3->link->flags |= AF_EDGE_DONE; 1947049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1948049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1949049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !skipped ) 1951049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 1952049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 1954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * now hint the remaining edges (serifs and single) in order 1955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * to complete our processing 1956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 1957049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( edge = edges; edge < edge_limit; edge++ ) 1958049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->flags & AF_EDGE_DONE ) 1960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 1961049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1962049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->serif ) 1963049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1964049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_serif_edge( hints, edge->serif, edge ); 1965049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project edge->flags |= AF_EDGE_DONE; 1966049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project skipped--; 1967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1968049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1970049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !skipped ) 1971049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 1972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1973049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( edge = edges; edge < edge_limit; edge++ ) 1974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1975049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge before, after; 1976049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1977049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1978049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( edge->flags & AF_EDGE_DONE ) 1979049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 1980049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1981049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project before = after = edge; 1982049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1983049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( --before >= edges ) 1984049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( before->flags & AF_EDGE_DONE ) 1985049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1986049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1987049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( ++after < edge_limit ) 1988049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( after->flags & AF_EDGE_DONE ) 1989049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1990049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1991049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( before >= edges || after < edge_limit ) 1992049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1993049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( before < edges ) 1994049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_serif_edge( hints, after, edge ); 1995049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( after >= edge_limit ) 1996049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_serif_edge( hints, before, edge ); 1997049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 19980a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 19990a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( after->fpos == before->fpos ) 20000a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project edge->pos = before->pos; 20010a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project else 20020a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project edge->pos = before->pos + 20030a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_MulDiv( edge->fpos - before->fpos, 20040a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project after->pos - before->pos, 20050a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project after->fpos - before->fpos ); 20060a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 2007049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2008049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2009049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2010049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2011049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2012049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 2013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_edge_points( AF_GlyphHints hints, 2014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Dimension dim ) 2015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_AxisHints axis = & hints->axis[dim]; 2017049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edges = axis->edges; 2018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge_limit = edges + axis->num_edges; 2019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Edge edge; 2020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool snapping; 2021049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project snapping = FT_BOOL( ( dim == AF_DIMENSION_HORZ && 2024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) || 2025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( dim == AF_DIMENSION_VERT && 2026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ); 2027049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2028049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( edge = edges; edge < edge_limit; edge++ ) 2029049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2030049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* move the points of each segment */ 2031049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* in each edge to the edge's position */ 2032049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Segment seg = edge->first; 2033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2034049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2035049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( snapping ) 2036049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2037049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 2038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2039049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Point point = seg->first; 2040049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2041049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2042049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for (;;) 2043049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2044049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_HORZ ) 2045049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2046049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->x = edge->pos; 2047049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->flags |= AF_FLAG_TOUCH_X; 2048049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2049049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 2050049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2051049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->y = edge->pos; 2052049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->flags |= AF_FLAG_TOUCH_Y; 2053049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2054049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2055049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( point == seg->last ) 2056049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 2057049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2058049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point = point->next; 2059049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2060049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2061049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg = seg->edge_next; 2062049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2063049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( seg != edge->first ); 2064049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2065049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 2066049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2067049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta = edge->pos - edge->opos; 2068049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2069049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2070049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 2071049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2072049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Point point = seg->first; 2073049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2074049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2075049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for (;;) 2076049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2077049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_HORZ ) 2078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->x += delta; 2080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->flags |= AF_FLAG_TOUCH_X; 2081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2082049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 2083049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2084049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->y += delta; 2085049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point->flags |= AF_FLAG_TOUCH_Y; 2086049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2087049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2088049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( point == seg->last ) 2089049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 2090049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2091049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point = point->next; 2092049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2093049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2094049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project seg = seg->edge_next; 2095049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2096049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( seg != edge->first ); 2097049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2098049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2099049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 2103aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_hints_apply( AF_GlyphHints hints, 2104aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_Outline* outline, 2105aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_CJKMetrics metrics ) 2106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 2108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int dim; 2109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( metrics ); 2111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2113aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich error = af_glyph_hints_reload( hints, outline ); 2114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 2115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 2116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* analyze glyph outline */ 2118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( AF_HINTS_DO_HORIZONTAL( hints ) ) 2119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_cjk_hints_detect_features( hints, AF_DIMENSION_HORZ ); 2121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 2122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 2123aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 2124aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_HORZ ); 2125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( AF_HINTS_DO_VERTICAL( hints ) ) 2128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = af_cjk_hints_detect_features( hints, AF_DIMENSION_VERT ); 2130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 2131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 2132aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 2133aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_cjk_hints_compute_blue_edges( hints, metrics, AF_DIMENSION_VERT ); 2134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* grid-fit the outline */ 2137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ ) 2138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) || 2140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) ) 2141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2143aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#ifdef AF_CONFIG_OPTION_USE_WARPER 2144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( dim == AF_DIMENSION_HORZ && 2145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL ) 2146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_WarperRec warper; 2148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed scale; 2149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta; 2150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2152aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_warper_compute( &warper, hints, (AF_Dimension)dim, 2153aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner &scale, &delta ); 2154aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner af_glyph_hints_scale_dim( hints, (AF_Dimension)dim, 2155aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner scale, delta ); 2156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 2157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2158aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif /* AF_CONFIG_OPTION_USE_WARPER */ 2159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_hint_edges( hints, (AF_Dimension)dim ); 2161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_align_edge_points( hints, (AF_Dimension)dim ); 2162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim ); 2163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim ); 2164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 2168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_dump_points( hints ); 2169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_dump_segments( hints ); 2170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_dump_edges( hints ); 2171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 2172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_glyph_hints_save( hints, outline ); 2174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 2176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 2177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 2181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 2182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 2183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** C J K S C R I P T C L A S S *****/ 2184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 2185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 2186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 2187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2189aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* this corresponds to Unicode 6.0 */ 2190aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 2191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const AF_Script_UniRangeRec af_cjk_uniranges[] = 2192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2193295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x2E80UL, 0x2EFFUL ), /* CJK Radicals Supplement */ 2194295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x2F00UL, 0x2FDFUL ), /* Kangxi Radicals */ 2195aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x2FF0UL, 0x2FFFUL ), /* Ideographic Description Characters */ 2196295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3000UL, 0x303FUL ), /* CJK Symbols and Punctuation */ 2197295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3040UL, 0x309FUL ), /* Hiragana */ 2198295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x30A0UL, 0x30FFUL ), /* Katakana */ 2199295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3100UL, 0x312FUL ), /* Bopomofo */ 2200295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3130UL, 0x318FUL ), /* Hangul Compatibility Jamo */ 2201aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x3190UL, 0x319FUL ), /* Kanbun */ 2202295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x31A0UL, 0x31BFUL ), /* Bopomofo Extended */ 2203295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x31C0UL, 0x31EFUL ), /* CJK Strokes */ 2204295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x31F0UL, 0x31FFUL ), /* Katakana Phonetic Extensions */ 2205295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3200UL, 0x32FFUL ), /* Enclosed CJK Letters and Months */ 2206295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3300UL, 0x33FFUL ), /* CJK Compatibility */ 2207295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x3400UL, 0x4DBFUL ), /* CJK Unified Ideographs Extension A */ 2208295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x4DC0UL, 0x4DFFUL ), /* Yijing Hexagram Symbols */ 2209295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x4E00UL, 0x9FFFUL ), /* CJK Unified Ideographs */ 2210aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0xA960UL, 0xA97FUL ), /* Hangul Jamo Extended-A */ 2211aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0xAC00UL, 0xD7AFUL ), /* Hangul Syllables */ 2212aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0xD7B0UL, 0xD7FFUL ), /* Hangul Jamo Extended-B */ 2213295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0xF900UL, 0xFAFFUL ), /* CJK Compatibility Ideographs */ 2214aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0xFE10UL, 0xFE1FUL ), /* Vertical forms */ 2215295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0xFE30UL, 0xFE4FUL ), /* CJK Compatibility Forms */ 2216295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0xFF00UL, 0xFFEFUL ), /* Halfwidth and Fullwidth Forms */ 2217aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x1B000UL, 0x1B0FFUL ), /* Kana Supplement */ 2218aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x1D300UL, 0x1D35FUL ), /* Tai Xuan Hing Symbols */ 2219aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x1F200UL, 0x1F2FFUL ), /* Enclosed Ideographic Supplement */ 2220295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x20000UL, 0x2A6DFUL ), /* CJK Unified Ideographs Extension B */ 2221aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x2A700UL, 0x2B73FUL ), /* CJK Unified Ideographs Extension C */ 2222aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner AF_UNIRANGE_REC( 0x2B740UL, 0x2B81FUL ), /* CJK Unified Ideographs Extension D */ 2223295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0x2F800UL, 0x2FA1FUL ), /* CJK Compatibility Ideographs Supplement */ 2224295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0UL, 0UL ) 2225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 2226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2228295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class, 2229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCRIPT_CJK, 2230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_uniranges, 2231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2232aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner sizeof( AF_CJKMetricsRec ), 2233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_InitMetricsFunc) af_cjk_metrics_init, 2235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale, 2236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_DoneMetricsFunc) NULL, 2237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_InitHintsFunc) af_cjk_hints_init, 2239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_ApplyHintsFunc) af_cjk_hints_apply 2240295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner ) 2241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#else /* !AF_CONFIG_OPTION_CJK */ 2243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const AF_Script_UniRangeRec af_cjk_uniranges[] = 2245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2246295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_UNIRANGE_REC( 0UL, 0UL ) 2247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 2248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2250295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class, 2251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCRIPT_CJK, 2252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_cjk_uniranges, 2253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2254aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner sizeof( AF_CJKMetricsRec ), 2255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_InitMetricsFunc) NULL, 2257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_ScaleMetricsFunc)NULL, 2258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_DoneMetricsFunc) NULL, 2259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_InitHintsFunc) NULL, 2261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (AF_Script_ApplyHintsFunc) NULL 2262295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner ) 2263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* !AF_CONFIG_OPTION_CJK */ 2265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 2268