ttgload.c revision 295ffce55e0198e7a9f7d46b33f5c2b4147bf821
1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* ttgload.c */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* TrueType Glyph Loader (body). */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 7295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ 8295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner/* 2010 by */ 9049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* David Turner, Robert Wilhelm, and Werner Lemberg. */ 10049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 11049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* This file is part of the FreeType project, and may only be used, */ 12049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* modified, and distributed under the terms of the FreeType project */ 13049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 14049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* this file you indicate that you have read the license and */ 15049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* understand and accept it fully. */ 16049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 17049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 18049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 19049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include <ft2build.h> 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_DEBUG_H 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_CALC_H 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_STREAM_H 24049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_SFNT_H 25049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_TRUETYPE_TAGS_H 26049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_OUTLINE_H 27049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 28049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "ttgload.h" 29049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "ttpload.h" 30049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT 32049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "ttgxvar.h" 33049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 34049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 35049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "tterrors.h" 36049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 41049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* messages during execution. */ 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_COMPONENT 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_COMPONENT trace_ttgload 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 50049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Composite font flags. */ 51049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define ARGS_ARE_WORDS 0x0001 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define ARGS_ARE_XY_VALUES 0x0002 54049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define ROUND_XY_TO_GRID 0x0004 55049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define WE_HAVE_A_SCALE 0x0008 56049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* reserved 0x0010 */ 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define MORE_COMPONENTS 0x0020 58049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define WE_HAVE_AN_XY_SCALE 0x0040 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define WE_HAVE_A_2X2 0x0080 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define WE_HAVE_INSTR 0x0100 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define USE_MY_METRICS 0x0200 62049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define OVERLAP_COMPOUND 0x0400 63049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define SCALED_COMPONENT_OFFSET 0x0800 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define UNSCALED_COMPONENT_OFFSET 0x1000 65049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 66049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 68049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Returns the horizontal metrics in font units for a given glyph. If */ 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* `check' is true, take care of monospaced fonts by returning the */ 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* advance width maximum. */ 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 73295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_LOCAL_DEF( void ) 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Get_HMetrics( TT_Face face, 75049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt idx, 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool check, 77049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Short* lsb, 78049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort* aw ) 79049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 80049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( (SFNT_Service)face->sfnt )->get_metrics( face, 0, idx, lsb, aw ); 81049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 82049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( check && face->postscript.isFixedPitch ) 83049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aw = face->horizontal.advance_Width_Max; 84295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 85295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE5(( " advance width (font units): %d\n", *aw )); 86295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE5(( " left side bearing (font units): %d\n", *lsb )); 87049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 88049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 89049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 90049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 91049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 92049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Returns the vertical metrics in font units for a given glyph. */ 93049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Greg Hitchcock from Microsoft told us that if there were no `vmtx' */ 94049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* table, typoAscender/Descender from the `OS/2' table would be used */ 95049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* instead, and if there were no `OS/2' table, use ascender/descender */ 96049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* from the `hhea' table. But that is not what Microsoft's rasterizer */ 97049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* apparently does: It uses the ppem value as the advance height, and */ 98049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* sets the top side bearing to be zero. */ 99049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The monospace `check' is probably not meaningful here, but we leave */ 101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* it in for a consistent interface. */ 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 103295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_LOCAL_DEF( void ) 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Get_VMetrics( TT_Face face, 105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt idx, 106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool check, 107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Short* tsb, 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort* ah ) 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( check ); 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->vertical_info ) 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( (SFNT_Service)face->sfnt )->get_metrics( face, 1, idx, tsb, ah ); 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 1 /* Empirically determined, at variance with what MS said */ 116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *tsb = 0; 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *ah = face->root.units_per_EM; 121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#else /* This is what MS said to do. It isn't what they do, however. */ 124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( face->os2.version != 0xFFFFU ) 126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *tsb = face->os2.sTypoAscender; 128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *ah = face->os2.sTypoAscender - face->os2.sTypoDescender; 129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *tsb = face->horizontal.Ascender; 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *ah = face->horizontal.Ascender - face->horizontal.Descender; 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 138295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE5(( " advance height (font units): %d\n", *ah )); 139295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE5(( " top side bearing (font units): %d\n", *tsb )); 140295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 141295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 142295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 143295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner static void 144295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner tt_get_metrics( TT_Loader loader, 145295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt glyph_index ) 146295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 147295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner TT_Face face = (TT_Face)loader->face; 148295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 149295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Short left_bearing = 0, top_bearing = 0; 150295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UShort advance_width = 0, advance_height = 0; 151295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 152295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 153295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner TT_Get_HMetrics( face, glyph_index, 154295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (FT_Bool)!( loader->load_flags & 155295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ), 156295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner &left_bearing, 157295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner &advance_width ); 158295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner TT_Get_VMetrics( face, glyph_index, 159295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (FT_Bool)!( loader->load_flags & 160295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ), 161295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner &top_bearing, 162295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner &advance_height ); 163295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 164295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#ifdef FT_CONFIG_OPTION_INCREMENTAL 165295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 166295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* If this is an incrementally loaded font check whether there are */ 167295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* overriding metrics for this glyph. */ 168295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( face->root.internal->incremental_interface && 169295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner face->root.internal->incremental_interface->funcs->get_glyph_metrics ) 170295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 171295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Incremental_MetricsRec metrics; 172295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Error error; 173295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 174295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 175295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.bearing_x = left_bearing; 176295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.bearing_y = 0; 177295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.advance = advance_width; 178295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.advance_v = 0; 179295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 180295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( 181295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner face->root.internal->incremental_interface->object, 182295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph_index, FALSE, &metrics ); 183295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( error ) 184295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner goto Exit; 185295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 186295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner left_bearing = (FT_Short)metrics.bearing_x; 187295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner advance_width = (FT_UShort)metrics.advance; 188295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 189295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#if 0 190295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 191295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* GWW: Do I do the same for vertical metrics? */ 192295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.bearing_x = 0; 193295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.bearing_y = top_bearing; 194295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner metrics.advance = advance_height; 195295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 196295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( 197295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner face->root.internal->incremental_interface->object, 198295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph_index, TRUE, &metrics ); 199295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( error ) 200295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner goto Exit; 201295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 202295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner top_bearing = (FT_Short)metrics.bearing_y; 203295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner advance_height = (FT_UShort)metrics.advance; 204295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 205295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#endif /* 0 */ 206295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 207295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 208295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 209295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner Exit: 210295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 211295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#endif /* FT_CONFIG_OPTION_INCREMENTAL */ 212295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 213295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->left_bearing = left_bearing; 214295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->advance = advance_width; 215295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->top_bearing = top_bearing; 216295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->vadvance = advance_height; 217295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 218295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( !loader->linear_def ) 219295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 220295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->linear_def = 1; 221295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->linear = advance_width; 222295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Translates an array of coordinates. */ 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project translate_array( FT_UInt n, 232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* coords, 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta_x, 234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta_y ) 235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt k; 237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( delta_x ) 240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( k = 0; k < n; k++ ) 241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project coords[k].x += delta_x; 242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( delta_y ) 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( k = 0; k < n; k++ ) 245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project coords[k].y += delta_y; 246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef IS_HINTED 250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define IS_HINTED( flags ) ( ( flags & FT_LOAD_NO_HINTING ) == 0 ) 251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The following functions are used by default with TrueType fonts. */ 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* However, they can be replaced by alternatives if we need to support */ 257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TrueType-compressed formats (like MicroType) in the future. */ 258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CALLBACK_DEF( FT_Error ) 262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Access_Glyph_Frame( TT_Loader loader, 263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index, 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong offset, 265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt byte_count ) 266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream = loader->stream; 269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* for non-debug mode */ 271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( glyph_index ); 272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE5(( "Glyph %ld\n", glyph_index )); 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the following line sets the `error' variable through macros! */ 277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( byte_count ) ) 278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->cursor = stream->cursor; 281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->limit = stream->limit; 282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CALLBACK_DEF( void ) 288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Forget_Glyph_Frame( TT_Loader loader ) 289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream = loader->stream; 291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CALLBACK_DEF( FT_Error ) 298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Load_Glyph_Header( TT_Loader loader ) 299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* p = loader->cursor; 301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit = loader->limit; 302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 10 > limit ) 305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Invalid_Outline; 306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->n_contours = FT_NEXT_SHORT( p ); 308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.xMin = FT_NEXT_SHORT( p ); 310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.yMin = FT_NEXT_SHORT( p ); 311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.xMax = FT_NEXT_SHORT( p ); 312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.yMax = FT_NEXT_SHORT( p ); 313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE5(( " # of contours: %d\n", loader->n_contours )); 315049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE5(( " xMin: %4d xMax: %4d\n", loader->bbox.xMin, 316049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.xMax )); 317049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE5(( " yMin: %4d yMax: %4d\n", loader->bbox.yMin, 318049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.yMax )); 319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->cursor = p; 320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CALLBACK_DEF( FT_Error ) 326049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Load_Simple_Glyph( TT_Loader load ) 327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 329049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* p = load->cursor; 330049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit = load->limit; 331049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader gloader = load->gloader; 332049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n_contours = load->n_contours; 333049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline; 334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Face face = (TT_Face)load->face; 335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort n_ins; 336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n_points; 337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte *flag, *flag_limit; 339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte c, count; 340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector *vec, *vec_limit; 341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos x; 342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Short *cont, *cont_limit, prev_cont; 343049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int xy_size = 0; 344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 346049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that we can add the contours to the glyph */ 347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_GLYPHLOADER_CHECK_POINTS( gloader, 0, n_contours ); 348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 350049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reading the contours' endpoints & number of points */ 352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cont = gloader->current.outline.contours; 353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cont_limit = cont + n_contours; 354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check space for contours array + instructions count */ 356049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_contours >= 0xFFF || p + ( n_contours + 1 ) * 2 > limit ) 357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project prev_cont = FT_NEXT_USHORT( p ); 360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 361049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_contours > 0 ) 362049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cont[0] = prev_cont; 363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 364049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( cont++; cont < cont_limit; cont++ ) 365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 366049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cont[0] = FT_NEXT_USHORT( p ); 367049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( cont[0] <= prev_cont ) 368049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 369049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* unordered contours: this is invalid */ 370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_Err_Invalid_Table; 371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project prev_cont = cont[0]; 374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_points = 0; 377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_contours > 0 ) 378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_points = cont[-1] + 1; 380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_points < 0 ) 381049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 383049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 384049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* note that we will add four phantom points later */ 385049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_GLYPHLOADER_CHECK_POINTS( gloader, n_points + 4, 0 ); 386049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 387049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 389049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* we'd better check the contours table right now */ 390049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline = &gloader->current.outline; 391049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 392049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( cont = outline->contours + 1; cont < cont_limit; cont++ ) 393049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( cont[-1] >= cont[0] ) 394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reading the bytecode instructions */ 397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load->glyph->control_len = 0; 398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load->glyph->control_data = 0; 399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 400049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 2 > limit ) 401049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 402049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 403049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_ins = FT_NEXT_USHORT( p ); 404049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 405049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE5(( " Instructions size: %u\n", n_ins )); 406049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 407049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_ins > face->max_profile.maxSizeOfInstructions ) 408049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 409295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE0(( "TT_Load_Simple_Glyph: too many instructions (%d)\n", 410049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_ins )); 411049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Too_Many_Hints; 412049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 413049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 414049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( limit - p ) < n_ins ) 416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 417295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE0(( "TT_Load_Simple_Glyph: instruction count mismatch\n" )); 418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Too_Many_Hints; 419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 421049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( IS_HINTED( load->load_flags ) ) 425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load->glyph->control_len = n_ins; 427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load->glyph->control_data = load->exec->glyphIns; 428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MEM_COPY( load->exec->glyphIns, p, (FT_Long)n_ins ); 430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_USE_BYTECODE_INTERPRETER */ 433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 434049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project p += n_ins; 435049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 436049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reading the point tags */ 437049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project flag = (FT_Byte*)outline->tags; 438049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project flag_limit = flag + n_points; 439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ASSERT( flag != NULL ); 441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( flag < flag_limit ) 443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 1 > limit ) 445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 446049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *flag++ = c = FT_NEXT_BYTE( p ); 448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( c & 8 ) 449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 1 > limit ) 451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count = FT_NEXT_BYTE( p ); 454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( flag + (FT_Int)count > flag_limit ) 455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; count > 0; count-- ) 458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *flag++ = c; 459049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reading the X coordinates */ 463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec = outline->points; 465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec_limit = vec + n_points; 466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project flag = (FT_Byte*)outline->tags; 467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = 0; 468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + xy_size > limit ) 470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; vec < vec_limit; vec++, flag++ ) 473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 4740a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Pos y = 0; 4750a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Byte f = *flag; 476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( f & 2 ) 479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 1 > limit ) 481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = (FT_Pos)FT_NEXT_BYTE( p ); 484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( f & 16 ) == 0 ) 485049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = -y; 486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( ( f & 16 ) == 0 ) 488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 2 > limit ) 490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = (FT_Pos)FT_NEXT_SHORT( p ); 493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x += y; 496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec->x = x; 4970a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* the cast is for stupid compilers */ 4980a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project *flag = (FT_Byte)( f & ~( 2 | 16 ) ); 499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 500049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reading the Y coordinates */ 502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec = gloader->current.outline.points; 504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec_limit = vec + n_points; 505049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project flag = (FT_Byte*)outline->tags; 506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = 0; 507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 508049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; vec < vec_limit; vec++, flag++ ) 509049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 5100a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Pos y = 0; 5110a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Byte f = *flag; 512049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 513049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 514049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( f & 4 ) 515049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 516049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 1 > limit ) 517049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 518049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 519049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = (FT_Pos)FT_NEXT_BYTE( p ); 520049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( f & 32 ) == 0 ) 521049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = -y; 522049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 523049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( ( f & 32 ) == 0 ) 524049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 525049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 2 > limit ) 526049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 527049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 528049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = (FT_Pos)FT_NEXT_SHORT( p ); 529049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 530049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 531049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x += y; 532049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec->y = x; 5330a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* the cast is for stupid compilers */ 5340a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project *flag = (FT_Byte)( f & FT_CURVE_TAG_ON ); 535049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 536049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 537049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->n_points = (FT_UShort)n_points; 538049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->n_contours = (FT_Short) n_contours; 539049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 540049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load->cursor = p; 541049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 542049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Fail: 543049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 544049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 545049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Invalid_Outline: 546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Invalid_Outline; 547049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 548049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CALLBACK_DEF( FT_Error ) 552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Load_Composite_Glyph( TT_Loader loader ) 553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* p = loader->cursor; 556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit = loader->limit; 557049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader gloader = loader->gloader; 558049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_SubGlyph subglyph; 559049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt num_subglyphs; 560049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 561049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 562049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_subglyphs = 0; 563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed xx, xy, yy, yx; 567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt count; 568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that we can load a new subglyph */ 571049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs + 1 ); 572049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 573049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 575049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check space */ 576049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + 4 > limit ) 577049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Composite; 578049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph = gloader->current.subglyphs + num_subglyphs; 580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->arg1 = subglyph->arg2 = 0; 582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->flags = FT_NEXT_USHORT( p ); 584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->index = FT_NEXT_USHORT( p ); 585049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 586049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check space */ 587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count = 2; 588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( subglyph->flags & ARGS_ARE_WORDS ) 589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count += 2; 590049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( subglyph->flags & WE_HAVE_A_SCALE ) 591049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count += 2; 592049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) 593049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count += 4; 594049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( subglyph->flags & WE_HAVE_A_2X2 ) 595049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count += 8; 596049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 597049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( p + count > limit ) 598049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Composite; 599049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 600049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* read arguments */ 601049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( subglyph->flags & ARGS_ARE_WORDS ) 602049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 603049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->arg1 = FT_NEXT_SHORT( p ); 604049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->arg2 = FT_NEXT_SHORT( p ); 605049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 606049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 607049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 608049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->arg1 = FT_NEXT_CHAR( p ); 609049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->arg2 = FT_NEXT_CHAR( p ); 610049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 611049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 612049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* read transform */ 613049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xx = yy = 0x10000L; 614049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xy = yx = 0; 615049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 616049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( subglyph->flags & WE_HAVE_A_SCALE ) 617049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 618049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 619049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yy = xx; 620049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 621049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) 622049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 623049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 624049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 625049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 626049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( subglyph->flags & WE_HAVE_A_2X2 ) 627049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 628049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 629049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 630049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 631049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; 632049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 633049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 634049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->transform.xx = xx; 635049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->transform.xy = xy; 636049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->transform.yx = yx; 637049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->transform.yy = yy; 638049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 639049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_subglyphs++; 640049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 641049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( subglyph->flags & MORE_COMPONENTS ); 642049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 643049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gloader->current.num_subglyphs = num_subglyphs; 644049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 645049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 646049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 647049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 648049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream = loader->stream; 649049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 650049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 6510a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* we must undo the FT_FRAME_ENTER in order to point */ 6520a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* to the composite instructions, if we find some. */ 6530a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* We will process them later. */ 6540a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* */ 655049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->ins_pos = (FT_ULong)( FT_STREAM_POS() + 656049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project p - limit ); 657049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 661049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->cursor = p; 662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 663049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Fail: 664049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Invalid_Composite: 667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Invalid_Composite; 668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( void ) 673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Init_Glyph_Loading( TT_Face face ) 674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 675049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->access_glyph_frame = TT_Access_Glyph_Frame; 676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->read_glyph_header = TT_Load_Glyph_Header; 677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->read_simple_glyph = TT_Load_Simple_Glyph; 678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->read_composite_glyph = TT_Load_Composite_Glyph; 679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->forget_glyph_frame = TT_Forget_Glyph_Frame; 680049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 681049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 682049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 684049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_prepare_zone( TT_GlyphZone zone, 685049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoad load, 686049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_point, 687049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_contour ) 688049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 689049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->n_points = (FT_UShort)( load->outline.n_points - start_point ); 690049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->n_contours = (FT_Short) ( load->outline.n_contours - 691049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project start_contour ); 692049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->org = load->extra_points + start_point; 693049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->cur = load->outline.points + start_point; 694049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->orus = load->extra_points2 + start_point; 695049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->tags = (FT_Byte*)load->outline.tags + start_point; 696049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->contours = (FT_UShort*)load->outline.contours + start_contour; 697049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->first_point = (FT_UShort)start_point; 698049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 699049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 700049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 701049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 702049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 703049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 704049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Hint_Glyph */ 705049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 706049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 707049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Hint the glyph using the zone prepared by the caller. Note that */ 708049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the zone is supposed to include four phantom points. */ 709049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 710049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 711049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Hint_Glyph( TT_Loader loader, 712049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool is_composite ) 713049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 714049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_GlyphZone zone = &loader->zone; 715049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos origin; 716049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 717049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 718049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt n_ins; 719049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#else 720049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UNUSED( is_composite ); 721049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 722049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 723049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 724049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 725295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( loader->glyph->control_len > 0xFFFFL ) 726295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 727295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE1(( "TT_Hint_Glyph: too long instructions " )); 728295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE1(( "(0x%lx byte) is truncated\n", 729295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->glyph->control_len )); 730295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 731295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner n_ins = (FT_UInt)( loader->glyph->control_len ); 732049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 733049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 734049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project origin = zone->cur[zone->n_points - 4].x; 735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project origin = FT_PIX_ROUND( origin ) - origin; 736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( origin ) 737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project translate_array( zone->n_points, zone->cur, origin, 0 ); 738049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 739049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* save original point position in org */ 741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_ins > 0 ) 742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ARRAY_COPY( zone->org, zone->cur, zone->n_points ); 7430a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Reset graphics state. */ 745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->GS = ((TT_Size)loader->size)->GS; 746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: UNDOCUMENTED! Hinting instructions of a composite glyph */ 748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* completely refer to the (already) hinted subglyphs. */ 749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( is_composite ) 750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->metrics.x_scale = 1 << 16; 752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->metrics.y_scale = 1 << 16; 753049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 754049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ARRAY_COPY( zone->orus, zone->cur, zone->n_points ); 755049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 756049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 757049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 758049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->metrics.x_scale = 759049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ((TT_Size)loader->size)->metrics.x_scale; 760049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->metrics.y_scale = 761049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ((TT_Size)loader->size)->metrics.y_scale; 762049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 763049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 764049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 765049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* round pp2 and pp4 */ 766049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->cur[zone->n_points - 3].x = 767049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_PIX_ROUND( zone->cur[zone->n_points - 3].x ); 768049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project zone->cur[zone->n_points - 1].y = 769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_PIX_ROUND( zone->cur[zone->n_points - 1].y ); 770049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 771049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 772049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 773049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_ins > 0 ) 774049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 775049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool debug; 776049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 777049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 778295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_GlyphLoader gloader = loader->gloader; 779295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Outline current_outline = gloader->current.outline; 780295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 782049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Set_CodeRange( loader->exec, tt_coderange_glyph, 783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->glyphIns, n_ins ); 784049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 785049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 786049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 787049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->is_composite = is_composite; 788049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec->pts = *zone; 789049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project debug = FT_BOOL( !( loader->load_flags & FT_LOAD_NO_SCALE ) && 791049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ((TT_Size)loader->size)->debug ); 792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Run_Context( loader->exec, debug ); 794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error && loader->exec->pedantic_hinting ) 795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 796295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 797295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* store drop-out mode in bits 5-7; set bit 2 also as a marker */ 798295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner current_outline.tags[0] |= 799295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner ( loader->exec->GS.scan_type << 5 ) | FT_CURVE_TAG_HAS_SCANMODE; 800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 803049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 804049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* save glyph phantom points */ 805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !loader->preserve_pps ) 806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1 = zone->cur[zone->n_points - 4]; 808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2 = zone->cur[zone->n_points - 3]; 809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3 = zone->cur[zone->n_points - 2]; 810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4 = zone->cur[zone->n_points - 1]; 811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 814049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 815049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Process_Simple_Glyph */ 821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Once a simple glyph has been loaded, it needs to be processed. */ 824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Usually, this means scaling and hinting through bytecode */ 825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* interpretation. */ 826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Process_Simple_Glyph( TT_Loader loader ) 829049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader gloader = loader->gloader; 831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = TT_Err_Ok; 832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline; 833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n_points; 834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline = &gloader->current.outline; 837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_points = outline->n_points; 838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* set phantom points */ 840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[n_points ] = loader->pp1; 842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[n_points + 1] = loader->pp2; 843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[n_points + 2] = loader->pp3; 844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[n_points + 3] = loader->pp4; 845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[n_points ] = 0; 847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[n_points + 1] = 0; 848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[n_points + 2] = 0; 849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[n_points + 3] = 0; 850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_points += 4; 852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT 854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ((TT_Face)loader->face)->doblend ) 856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Deltas apply to the unscaled data. */ 858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* deltas; 859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = loader->face->memory; 860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int i; 861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Vary_Get_Glyph_Deltas( (TT_Face)(loader->face), 864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyph_index, 865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &deltas, 866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_points ); 867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = 0; i < n_points; ++i ) 871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[i].x += deltas[i].x; 873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[i].y += deltas[i].y; 874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( deltas ); 877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ 880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( IS_HINTED( loader->load_flags ) ) 882049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 883049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_prepare_zone( &loader->zone, &gloader->current, 0, 0 ); 884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ARRAY_COPY( loader->zone.orus, loader->zone.cur, 886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->zone.n_points + 4 ); 887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* scale the glyph */ 890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* vec = outline->points; 893049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* limit = outline->points + n_points; 894049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed x_scale = ((TT_Size)loader->size)->metrics.x_scale; 895049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed y_scale = ((TT_Size)loader->size)->metrics.y_scale; 896049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 897049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 898049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; vec < limit; vec++ ) 899049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 900049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec->x = FT_MulFix( vec->x, x_scale ); 901049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec->y = FT_MulFix( vec->y, y_scale ); 902049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 903049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1 = outline->points[n_points - 4]; 905049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2 = outline->points[n_points - 3]; 906049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3 = outline->points[n_points - 2]; 907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4 = outline->points[n_points - 1]; 908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 910049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( IS_HINTED( loader->load_flags ) ) 911049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->zone.n_points += 4; 913049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 914049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Hint_Glyph( loader, 0 ); 915049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 919049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 922049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Process_Composite_Component */ 925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Once a composite component has been loaded, it needs to be */ 928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* processed. Usually, this means transforming and translating. */ 929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Process_Composite_Component( TT_Loader loader, 932049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_SubGlyph subglyph, 933049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_point, 934049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt num_base_points ) 935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader gloader = loader->gloader; 937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* base_vec = gloader->base.outline.points; 938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt num_points = gloader->base.outline.n_points; 939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool have_scale; 940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos x, y; 941049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 942049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 943049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project have_scale = FT_BOOL( subglyph->flags & ( WE_HAVE_A_SCALE | 944049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project WE_HAVE_AN_XY_SCALE | 945049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project WE_HAVE_A_2X2 ) ); 946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 947049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* perform the transform required for this subglyph */ 948049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( have_scale ) 949049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt i; 951049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 952049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = num_base_points; i < num_points; i++ ) 954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector_Transform( base_vec + i, &subglyph->transform ); 955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 957049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* get offset */ 958049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !( subglyph->flags & ARGS_ARE_XY_VALUES ) ) 959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt k = subglyph->arg1; 961049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt l = subglyph->arg2; 962049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* p1; 963049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* p2; 964049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 965049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 966049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* match l-th point of the newly loaded component to the k-th point */ 967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* of the previously loaded components. */ 968049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* change to the point numbers used by our outline */ 970049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project k += start_point; 971049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project l += num_base_points; 972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( k >= num_base_points || 973049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project l >= num_points ) 974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Invalid_Composite; 975049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 976049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project p1 = gloader->base.outline.points + k; 977049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project p2 = gloader->base.outline.points + l; 978049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 979049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = p1->x - p2->x; 980049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = p1->y - p2->y; 981049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 982049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 983049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 984049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = subglyph->arg1; 985049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = subglyph->arg2; 986049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 987049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !x && !y ) 988049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 989049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 990049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Use a default value dependent on */ 991049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED. This is useful for old TT */ 992049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* fonts which don't set the xxx_COMPONENT_OFFSET bit. */ 993049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 994049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( have_scale && 995049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED 996049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project !( subglyph->flags & UNSCALED_COMPONENT_OFFSET ) ) 997049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#else 998049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( subglyph->flags & SCALED_COMPONENT_OFFSET ) ) 999049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1000049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1001049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1002049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 1003049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1004049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1005049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1006049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This algorithm is what Apple documents. But it doesn't work. */ 1007049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1008049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int a = subglyph->transform.xx > 0 ? subglyph->transform.xx 1009049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : -subglyph->transform.xx; 1010049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int b = subglyph->transform.yx > 0 ? subglyph->transform.yx 1011049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : -subglyph->transform.yx; 1012049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int c = subglyph->transform.xy > 0 ? subglyph->transform.xy 1013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : -subglyph->transform.xy; 1014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int d = subglyph->transform.yy > 0 ? subglyph->transform.yy 1015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : -subglyph->transform.yy; 1016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int m = a > b ? a : b; 1017049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project int n = c > d ? c : d; 1018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( a - b <= 33 && a - b >= -33 ) 1021049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project m *= 2; 1022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( c - d <= 33 && c - d >= -33 ) 1023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n *= 2; 1024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = FT_MulFix( x, m ); 1025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = FT_MulFix( y, n ); 1026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1027049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#else /* 0 */ 1028049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1029049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1030049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1031049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This algorithm is a guess and works much better than the above. */ 1032049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed mac_xscale = FT_SqrtFixed( 1034295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (FT_Int32)FT_MulFix( subglyph->transform.xx, 1035295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner subglyph->transform.xx ) + 1036295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (FT_Int32)FT_MulFix( subglyph->transform.xy, 1037295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner subglyph->transform.xy ) ); 1038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed mac_yscale = FT_SqrtFixed( 1039295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (FT_Int32)FT_MulFix( subglyph->transform.yy, 1040295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner subglyph->transform.yy ) + 1041295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (FT_Int32)FT_MulFix( subglyph->transform.yx, 1042295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner subglyph->transform.yx ) ); 1043049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1044049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1045049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = FT_MulFix( x, mac_xscale ); 1046049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = FT_MulFix( y, mac_yscale ); 1047049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1048049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* 0 */ 1049049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1050049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1051049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1052049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) 1053049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1054049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed x_scale = ((TT_Size)loader->size)->metrics.x_scale; 1055049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed y_scale = ((TT_Size)loader->size)->metrics.y_scale; 1056049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1057049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1058049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = FT_MulFix( x, x_scale ); 1059049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = FT_MulFix( y, y_scale ); 1060049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1061049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( subglyph->flags & ROUND_XY_TO_GRID ) 1062049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1063049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = FT_PIX_ROUND( x ); 1064049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = FT_PIX_ROUND( y ); 1065049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1066049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1067049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1068049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1069049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( x || y ) 1070049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project translate_array( num_points - num_base_points, 1071049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project base_vec + num_base_points, 1072049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x, y ); 1073049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1074049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 1075049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1076049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1077049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Process_Composite_Glyph */ 1082049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1083049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1084049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This is slightly different from TT_Process_Simple_Glyph, in that */ 1085049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* its sole purpose is to hint the glyph. Thus this function is */ 1086049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* only available when bytecode interpreter is enabled. */ 1087049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1088049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1089049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Process_Composite_Glyph( TT_Loader loader, 1090049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_point, 1091049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_contour ) 1092049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1093049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1094049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline; 1095049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt i; 1096049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1097049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1098049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline = &loader->gloader->base.outline; 1099049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* make room for phantom points */ 1101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = FT_GLYPHLOADER_CHECK_POINTS( loader->gloader, 1102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->n_points + 4, 1103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 0 ); 1104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[outline->n_points ] = loader->pp1; 1108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[outline->n_points + 1] = loader->pp2; 1109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[outline->n_points + 2] = loader->pp3; 1110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->points[outline->n_points + 3] = loader->pp4; 1111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[outline->n_points ] = 0; 1113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[outline->n_points + 1] = 0; 1114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[outline->n_points + 2] = 0; 1115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->tags[outline->n_points + 3] = 0; 1116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 1118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream = loader->stream; 1121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort n_ins; 1122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Load_Composite_Glyph only gives us the offset of instructions */ 1125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* so we read them here */ 1126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( loader->ins_pos ) || 1127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_READ_USHORT( n_ins ) ) 1128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_TRACE5(( " Instructions size = %d\n", n_ins )); 1131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check it */ 1133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_ins > ((TT_Face)loader->face)->max_profile.maxSizeOfInstructions ) 1134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1135295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE0(( "TT_Process_Composite_Glyph: too many instructions (%d)\n", 1136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n_ins )); 1137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Too_Many_Hints; 1139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( n_ins == 0 ) 1141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 1142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ( loader->exec->glyphIns, n_ins ) ) 1144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyph->control_data = loader->exec->glyphIns; 1147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyph->control_len = n_ins; 1148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_prepare_zone( &loader->zone, &loader->gloader->base, 1153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project start_point, start_contour ); 1154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Some points are likely touched during execution of */ 1156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* instructions on components. So let's untouch them. */ 1157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = start_point; i < loader->zone.n_points; i++ ) 1158295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader->zone.tags[i] &= ~FT_CURVE_TAG_TOUCH_BOTH; 1159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->zone.n_points += 4; 1161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Hint_Glyph( loader, 1 ); 1163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Calculate the four phantom points. */ 1167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The first two stand for horizontal origin and advance. */ 1168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The last two stand for vertical origin and advance. */ 1169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define TT_LOADER_SET_PP( loader ) \ 1170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do { \ 1171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp1.x = (loader)->bbox.xMin - (loader)->left_bearing; \ 1172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp1.y = 0; \ 1173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp2.x = (loader)->pp1.x + (loader)->advance; \ 1174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp2.y = 0; \ 1175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp3.x = 0; \ 1176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp3.y = (loader)->top_bearing + (loader)->bbox.yMax; \ 1177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp4.x = 0; \ 1178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (loader)->pp4.y = (loader)->pp3.y - (loader)->vadvance; \ 1179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( 0 ) 1180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load_truetype_glyph */ 1186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads a given truetype glyph. Handles composites and uses a */ 1189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Loader object. */ 1190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load_truetype_glyph( TT_Loader loader, 1193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index, 1194295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_UInt recurse_count, 1195295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Bool header_only ) 1196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1197295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Error error = TT_Err_Ok; 1198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed x_scale, y_scale; 1199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong offset; 1200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Face face = (TT_Face)loader->face; 1201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader gloader = loader->gloader; 1202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool opened_frame = 0; 1203049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1204049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT 1205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* deltas = NULL; 1206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_CONFIG_OPTION_INCREMENTAL 1209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_StreamRec inc_stream; 1210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Data glyph_data; 1211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool glyph_data_loaded = 0; 1212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* some fonts have an incorrect value of `maxComponentDepth', */ 1216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* thus we allow depth 1 to catch the majority of them */ 1217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( recurse_count > 1 && 1218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project recurse_count > face->max_profile.maxComponentDepth ) 1219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Invalid_Composite; 1221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check glyph index */ 1225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( glyph_index >= (FT_UInt)face->root.num_glyphs ) 1226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Invalid_Glyph_Index; 1228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyph_index = glyph_index; 1232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 1234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x_scale = ((TT_Size)loader->size)->metrics.x_scale; 1236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale = ((TT_Size)loader->size)->metrics.y_scale; 1237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x_scale = 0x10000L; 1241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale = 0x10000L; 1242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1244295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner tt_get_metrics( loader, glyph_index ); 1245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Set `offset' to the start of the glyph relative to the start of */ 1247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the `glyf' table, and `byte_len' to the length of the glyph in */ 1248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* bytes. */ 1249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_CONFIG_OPTION_INCREMENTAL 1251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If we are loading glyph data via the incremental interface, set */ 1253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the loader stream to a memory stream reading the data returned */ 1254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* by the interface. */ 1255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->root.internal->incremental_interface ) 1256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->root.internal->incremental_interface->funcs->get_glyph_data( 1258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->root.internal->incremental_interface->object, 1259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index, &glyph_data ); 1260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_data_loaded = 1; 1264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project offset = 0; 1265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->byte_len = glyph_data.length; 1266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MEM_ZERO( &inc_stream, sizeof ( inc_stream ) ); 1268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream_OpenMemory( &inc_stream, 1269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_data.pointer, glyph_data.length ); 1270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->stream = &inc_stream; 1272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* FT_CONFIG_OPTION_INCREMENTAL */ 1276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project offset = tt_face_get_location( face, glyph_index, 1278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (FT_UInt*)&loader->byte_len ); 1279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( loader->byte_len > 0 ) 1281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1282295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#ifdef FT_CONFIG_OPTION_INCREMENTAL 1283295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* for the incremental interface, `glyf_offset' is always zero */ 1284295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( !loader->glyf_offset && 1285295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner !face->root.internal->incremental_interface ) 1286295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#else 12870a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( !loader->glyf_offset ) 1288295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#endif /* FT_CONFIG_OPTION_INCREMENTAL */ 12890a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 1290295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_TRACE2(( "no `glyf' table but non-zero `loca' entry\n" )); 12910a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project error = TT_Err_Invalid_Table; 12920a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project goto Exit; 12930a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 12940a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 1295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->access_glyph_frame( loader, glyph_index, 1296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyf_offset + offset, 1297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->byte_len ); 1298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project opened_frame = 1; 1302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1303295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* read glyph header first */ 1304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->read_glyph_header( loader ); 1305295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( error || header_only ) 1306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( loader->byte_len == 0 || loader->n_contours == 0 ) 1310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.xMin = 0; 1312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.xMax = 0; 1313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.yMin = 0; 1314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->bbox.yMax = 0; 1315049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1316295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( header_only ) 1317295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner goto Exit; 1318295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_LOADER_SET_PP( loader ); 1320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT 1322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ((TT_Face)(loader->face))->doblend ) 1324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* this must be done before scaling */ 1326049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = loader->face->memory; 1327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1329049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Vary_Get_Glyph_Deltas( (TT_Face)(loader->face), 1330049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index, &deltas, 4 ); 1331049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1332049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1333049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1.x += deltas[0].x; loader->pp1.y += deltas[0].y; 1335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2.x += deltas[1].x; loader->pp2.y += deltas[1].y; 1336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3.x += deltas[2].x; loader->pp3.y += deltas[2].y; 1337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4.x += deltas[3].x; loader->pp4.y += deltas[3].y; 1338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( deltas ); 1340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1343049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 1345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1346049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); 1347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); 1348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale ); 1349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale ); 1350049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Ok; 1353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1356049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_LOADER_SET_PP( loader ); 1357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1361049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1362049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if it is a simple glyph, load it */ 1363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1364049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( loader->n_contours > 0 ) 1365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1366049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->read_simple_glyph( loader ); 1367049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1368049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1369049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* all data have been read */ 1371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->forget_glyph_frame( loader ); 1372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project opened_frame = 0; 1373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Process_Simple_Glyph( loader ); 1375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader_Add( gloader ); 1379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1381049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1383049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1384049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1385049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* otherwise, load a composite! */ 1386049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( loader->n_contours == -1 ) 1387049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_point; 1389049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt start_contour; 1390049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong ins_pos; /* position of composite instructions, if any */ 1391049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1392049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1393049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project start_point = gloader->base.outline.n_points; 1394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project start_contour = gloader->base.outline.n_contours; 1395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* for each subglyph, read composite header */ 1397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->read_composite_glyph( loader ); 1398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1400049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1401049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* store the offset of instructions */ 1402049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ins_pos = loader->ins_pos; 1403049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1404049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* all data we need are read */ 1405049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->forget_glyph_frame( loader ); 1406049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project opened_frame = 0; 1407049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1408049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT 1409049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1410049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->doblend ) 1411049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1412049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int i, limit; 1413049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_SubGlyph subglyph; 1414049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = face->root.memory; 1415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1417049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* this provides additional offsets */ 1418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* for each component's translation */ 1419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( error = TT_Vary_Get_Glyph_Deltas( 1421049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face, 1422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index, 1423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &deltas, 1424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project gloader->current.num_subglyphs + 4 )) != 0 ) 1425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph = gloader->current.subglyphs + gloader->base.num_subglyphs; 1428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = gloader->current.num_subglyphs; 1429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = 0; i < limit; ++i, ++subglyph ) 1431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( subglyph->flags & ARGS_ARE_XY_VALUES ) 1433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1434295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* XXX: overflow check for subglyph->{arg1,arg2}. */ 1435295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* deltas[i].{x,y} must be within signed 16-bit, */ 1436295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* but the restriction of summed delta is not clear */ 1437295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner subglyph->arg1 += (FT_Int16)deltas[i].x; 1438295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner subglyph->arg2 += (FT_Int16)deltas[i].y; 1439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1.x += deltas[i + 0].x; loader->pp1.y += deltas[i + 0].y; 1443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2.x += deltas[i + 1].x; loader->pp2.y += deltas[i + 1].y; 1444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3.x += deltas[i + 2].x; loader->pp3.y += deltas[i + 2].y; 1445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4.x += deltas[i + 3].x; loader->pp4.y += deltas[i + 3].y; 1446049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( deltas ); 1448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ 1451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 1453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale ); 1455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale ); 1456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale ); 1457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale ); 1458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1459049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if the flag FT_LOAD_NO_RECURSE is set, we return the subglyph */ 1461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* `as is' in the glyph slot (the client application will be */ 1462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* responsible for interpreting these data)... */ 1463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( loader->load_flags & FT_LOAD_NO_RECURSE ) 1464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader_Add( gloader ); 1466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyph->format = FT_GLYPH_FORMAT_COMPOSITE; 1467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 1472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 1473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*********************************************************************/ 1474049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1475049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt n, num_base_points; 1477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_SubGlyph subglyph = 0; 1478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt num_points = start_point; 1480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt num_subglyphs = gloader->current.num_subglyphs; 1481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt num_base_subgs = gloader->base.num_subglyphs; 1482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream old_stream = loader->stream; 1484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1485049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader_Add( gloader ); 1487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* read each subglyph independently */ 1489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < num_subglyphs; n++ ) 1490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector pp[4]; 1492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Each time we call load_truetype_glyph in this loop, the */ 1495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* value of `gloader.base.subglyphs' can change due to table */ 1496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reallocations. We thus need to recompute the subglyph */ 1497049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* pointer on each iteration. */ 1498049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph = gloader->base.subglyphs + num_base_subgs + n; 1499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1500049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project pp[0] = loader->pp1; 1501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project pp[1] = loader->pp2; 1502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project pp[2] = loader->pp3; 1503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project pp[3] = loader->pp4; 1504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1505049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_base_points = gloader->base.outline.n_points; 1506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = load_truetype_glyph( loader, subglyph->index, 1508295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner recurse_count + 1, FALSE ); 1509049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1510049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1511049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1512049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* restore subglyph pointer */ 1513049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph = gloader->base.subglyphs + num_base_subgs + n; 1514049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1515049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !( subglyph->flags & USE_MY_METRICS ) ) 1516049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1517049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp1 = pp[0]; 1518049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp2 = pp[1]; 1519049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp3 = pp[2]; 1520049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->pp4 = pp[3]; 1521049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1522049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1523049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_points = gloader->base.outline.n_points; 1524049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1525049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( num_points == num_base_points ) 1526049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 1527049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1528049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* gloader->base.outline consists of three parts: */ 1529049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 0 -(1)-> start_point -(2)-> num_base_points -(3)-> n_points. */ 1530049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1531049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* (1): exists from the beginning */ 1532049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* (2): components that have been loaded so far */ 1533049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* (3): the newly loaded component */ 1534049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Process_Composite_Component( loader, subglyph, start_point, 1535049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_base_points ); 1536049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1537049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1538049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->stream = old_stream; 1539049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1540049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* process the glyph */ 1541049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->ins_pos = ins_pos; 1542049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( IS_HINTED( loader->load_flags ) && 1543049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1544049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 1545049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project subglyph->flags & WE_HAVE_INSTR && 1547049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1548049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_points > start_point ) 1551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Process_Composite_Glyph( loader, start_point, start_contour ); 1552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1557049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* invalid composite count (negative but not -1) */ 1558049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Invalid_Outline; 1559049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1560049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1561049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1562049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( opened_frame ) 1569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->forget_glyph_frame( loader ); 1570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1571049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_CONFIG_OPTION_INCREMENTAL 1572049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1573049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( glyph_data_loaded ) 1574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->root.internal->incremental_interface->funcs->free_glyph_data( 1575049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->root.internal->incremental_interface->object, 1576049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &glyph_data ); 1577049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1578049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1585049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project compute_glyph_metrics( TT_Loader loader, 1586049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index ) 1587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_BBox bbox; 1589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Face face = (TT_Face)loader->face; 1590049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed y_scale; 1591049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_GlyphSlot glyph = loader->glyph; 1592049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Size size = (TT_Size)loader->size; 1593049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1594049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1595049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale = 0x10000L; 1596049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) 1597049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale = size->root.metrics.y_scale; 1598049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1599049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( glyph->format != FT_GLYPH_FORMAT_COMPOSITE ) 1600049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Get_CBox( &glyph->outline, &bbox ); 1601049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1602049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project bbox = loader->bbox; 1603049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1604049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* get the device-independent horizontal advance; it is scaled later */ 1605049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* by the base layer. */ 1606049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1607049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos advance = loader->linear; 1608049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1609049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1610049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the flag FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH was introduced to */ 1611049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* correctly support DynaLab fonts, which have an incorrect */ 1612049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* `advance_Width_Max' field! It is used, to my knowledge, */ 1613049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* exclusively in the X-TrueType font server. */ 1614049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1615049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->postscript.isFixedPitch && 1616049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( loader->load_flags & FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ) == 0 ) 1617049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = face->horizontal.advance_Width_Max; 1618049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1619049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* we need to return the advance in font units in linearHoriAdvance, */ 1620049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* it will be scaled later by the base layer. */ 1621049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->linearHoriAdvance = advance; 1622049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1623049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1624049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.horiBearingX = bbox.xMin; 1625049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.horiBearingY = bbox.yMax; 1626049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; 1627049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1628295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* adjust advance width to the value contained in the hdmx table */ 1629295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( !face->postscript.isFixedPitch && 1630295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner IS_HINTED( loader->load_flags ) ) 1631295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 1632295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Byte* widthp; 1633295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1634295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1635295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner widthp = tt_face_get_device_metrics( face, 1636295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner size->root.metrics.x_ppem, 1637295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph_index ); 1638295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1639295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( widthp ) 1640295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->metrics.horiAdvance = *widthp << 6; 1641295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 1642049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1643295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* set glyph dimensions */ 1644295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->metrics.width = bbox.xMax - bbox.xMin; 1645295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->metrics.height = bbox.yMax - bbox.yMin; 1646295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1647295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* Now take care of vertical metrics. In the case where there is */ 1648295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* no vertical information within the font (relatively common), */ 1649295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* create some metrics manually */ 1650049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1651049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos top; /* scaled vertical top side bearing */ 1652049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos advance; /* scaled vertical advance height */ 1653049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1654049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1655049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Get the unscaled top bearing and advance height. */ 1656295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( face->vertical_info && 1657049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->vertical.number_Of_VMetrics > 0 ) 1658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project top = (FT_Short)FT_DivFix( loader->pp3.y - bbox.yMax, 1660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale ); 1661049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( loader->pp3.y <= loader->pp4.y ) 1663049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = 0; 1664049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = (FT_UShort)FT_DivFix( loader->pp3.y - loader->pp4.y, 1666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale ); 1667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos height; 1671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX Compute top side bearing and advance height in */ 1674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Get_VMetrics instead of here. */ 1675049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* NOTE: The OS/2 values are the only `portable' ones, */ 1677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* which is why we use them, if there is an OS/2 */ 1678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* table in the font. Otherwise, we use the */ 1679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* values defined in the horizontal header. */ 1680049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1681049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project height = (FT_Short)FT_DivFix( bbox.yMax - bbox.yMin, 1682049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_scale ); 1683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->os2.version != 0xFFFFU ) 1684049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = (FT_Pos)( face->os2.sTypoAscender - 1685049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->os2.sTypoDescender ); 1686049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1687049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = (FT_Pos)( face->horizontal.Ascender - 1688049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->horizontal.Descender ); 1689049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1690049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project top = ( advance - height ) / 2; 1691049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1692049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1693049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_CONFIG_OPTION_INCREMENTAL 1694049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1695049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Incremental_InterfaceRec* incr; 1696049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Incremental_MetricsRec metrics; 1697049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1698049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1699049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1700049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project incr = face->root.internal->incremental_interface; 1701049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1702049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If this is an incrementally loaded font see if there are */ 1703049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* overriding metrics for this glyph. */ 1704049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( incr && incr->funcs->get_glyph_metrics ) 1705049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1706049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics.bearing_x = 0; 1707049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics.bearing_y = top; 1708049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics.advance = advance; 1709049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1710049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = incr->funcs->get_glyph_metrics( incr->object, 1711049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index, 1712049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TRUE, 1713049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &metrics ); 1714049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1715049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1716049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1717049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project top = metrics.bearing_y; 1718049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = metrics.advance; 1719049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1720049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1721049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1722049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* GWW: Do vertical metrics get loaded incrementally too? */ 1723049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1724049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* FT_CONFIG_OPTION_INCREMENTAL */ 1725049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1726049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->linearVertAdvance = advance; 1727049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1728049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* scale the metrics */ 1729049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) 1730049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1731295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner top = FT_MulFix( top, y_scale ); 1732049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = FT_MulFix( advance, y_scale ); 1733049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1734049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: for now, we have no better algorithm for the lsb, but it */ 1736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* should work fine. */ 1737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1738295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->metrics.vertBearingX = glyph->metrics.horiBearingX - 1739295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->metrics.horiAdvance / 2; 1740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.vertBearingY = top; 1741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.vertAdvance = advance; 1742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1743049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 0; 1745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 1749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load_sbit_image( TT_Size size, 1752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_GlyphSlot glyph, 1753049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index, 1754049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int32 load_flags ) 1755049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1756049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Face face; 1757049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project SFNT_Service sfnt; 1758049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream; 1759049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1760049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_MetricsRec metrics; 1761049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1762049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1763049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face = (TT_Face)glyph->face; 1764049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project sfnt = (SFNT_Service)face->sfnt; 1765049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project stream = face->root.stream; 1766049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1767049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = sfnt->load_sbit_image( face, 1768049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size->strike_index, 1769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index, 1770049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (FT_Int)load_flags, 1771049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project stream, 1772049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &glyph->bitmap, 1773049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &metrics ); 1774049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !error ) 1775049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1776049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->outline.n_points = 0; 1777049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->outline.n_contours = 0; 1778049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1779049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.width = (FT_Pos)metrics.width << 6; 1780049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.height = (FT_Pos)metrics.height << 6; 1781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1782049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6; 1783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6; 1784049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.horiAdvance = (FT_Pos)metrics.horiAdvance << 6; 1785049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1786049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6; 1787049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6; 1788049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->metrics.vertAdvance = (FT_Pos)metrics.vertAdvance << 6; 1789049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->format = FT_GLYPH_FORMAT_BITMAP; 1791295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) 1793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->bitmap_left = metrics.vertBearingX; 1795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->bitmap_top = metrics.vertBearingY; 1796049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1797049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1798049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1799049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->bitmap_left = metrics.horiBearingX; 1800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->bitmap_top = metrics.horiBearingY; 1801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1803049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1804049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ 1808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_loader_init( TT_Loader loader, 1812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Size size, 1813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_GlyphSlot glyph, 1814295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Int32 load_flags, 1815295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Bool glyf_table_only ) 1816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Face face; 1818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream; 1819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face = (TT_Face)glyph->face; 1822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project stream = face->root.stream; 1823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MEM_ZERO( loader, sizeof ( TT_LoaderRec ) ); 1825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 1827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load execution context */ 1829295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( IS_HINTED( load_flags ) && !glyf_table_only ) 1830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_ExecContext exec; 1832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool grayscale; 1833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !size->cvt_ready ) 1836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = tt_size_ready_bytecode( size ); 1838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* query new execution context */ 1843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project exec = size->debug ? size->context 1844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : ( (TT_Driver)FT_FACE_DRIVER( face ) )->context; 1845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !exec ) 1846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Could_Not_Find_Context; 1847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project grayscale = 1849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_BOOL( FT_LOAD_TARGET_MODE( load_flags ) != FT_RENDER_MODE_MONO ); 1850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Load_Context( exec, face, size ); 1852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* a change from mono to grayscale rendering (and vice versa) */ 1854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* requires a re-execution of the CVT program */ 1855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( grayscale != exec->grayscale ) 1856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt i; 1858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project exec->grayscale = grayscale; 1861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = 0; i < size->cvt_size; i++ ) 1863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale ); 1864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_size_run_prep( size ); 1865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* see whether the cvt program has disabled hinting */ 1868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( exec->GS.instruct_control & 1 ) 1869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project load_flags |= FT_LOAD_NO_HINTING; 1870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load default graphics state -- if needed */ 1872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( exec->GS.instruct_control & 2 ) 1873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project exec->GS = tt_default_graphics_state; 1874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project exec->pedantic_hinting = FT_BOOL( load_flags & FT_LOAD_PEDANTIC ); 1876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->exec = exec; 1877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->instructions = exec->glyphIns; 1878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_USE_BYTECODE_INTERPRETER */ 1881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1882049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* seek to the beginning of the glyph table -- for Type 42 fonts */ 1883049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the table might be accessed from a Postscript stream or something */ 1884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* else... */ 1885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_CONFIG_OPTION_INCREMENTAL 1887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( face->root.internal->incremental_interface ) 1889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyf_offset = 0; 1890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 1891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 1893049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1894049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1895049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = face->goto_table( face, TTAG_glyf, stream, 0 ); 1896049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1897049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 18980a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( error == TT_Err_Table_Missing ) 18990a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project loader->glyf_offset = 0; 19000a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project else if ( error ) 1901049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1902295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_ERROR(( "tt_loader_init: could not access glyph table\n" )); 1903049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 19050a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project else 19060a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project loader->glyf_offset = FT_STREAM_POS(); 1907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* get face's glyph loader */ 1910295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( !glyf_table_only ) 1911049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader gloader = glyph->internal->loader; 1913049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1914049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1915049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphLoader_Rewind( gloader ); 1916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->gloader = gloader; 1917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 19190a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project loader->load_flags = load_flags; 1920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->face = (FT_Face)face; 1922049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->size = (FT_Size)size; 1923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->glyph = (FT_GlyphSlot)glyph; 1924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loader->stream = stream; 1925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 1927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1932049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1933049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TT_Load_Glyph */ 1934049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* A function used to load a single glyph within a given glyph slot, */ 1937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* for a given size. */ 1938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 1940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph :: A handle to a target slot object where the glyph */ 1941049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* will be loaded. */ 1942049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1943049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* size :: A handle to the source face size at which the glyph */ 1944049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* must be scaled/loaded. */ 1945049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph_index :: The index of the glyph in the font file. */ 1947049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1948049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load_flags :: A flag indicating what to load for this glyph. The */ 1949049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FT_LOAD_XXX constants can be used to control the */ 1950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph loading process (e.g., whether the outline */ 1951049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* should be scaled, whether to load bitmaps or not, */ 1952049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* whether to hint the outline, etc). */ 1953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 1955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 1956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1957049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 1958049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Load_Glyph( TT_Size size, 1959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_GlyphSlot glyph, 1960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index, 1961049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int32 load_flags ) 1962049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1963049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_Face face; 1964049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1965049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_LoaderRec loader; 1966049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1968049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face = (TT_Face)glyph->face; 1969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = TT_Err_Ok; 1970049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1971049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS 1972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1973049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* try to load embedded bitmap if any */ 1974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1975049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: The convention should be emphasized in */ 1976049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the documents because it can be confusing. */ 1977049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( size->strike_index != 0xFFFFFFFFUL && 1978049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) 1979049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1980049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = load_sbit_image( size, glyph, glyph_index, load_flags ); 1981049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !error ) 1982295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 1983295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Face root = &face->root; 1984295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1985295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1986295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( FT_IS_SCALABLE( root ) ) 1987295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner { 1988295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner /* for the bbox we need the header only */ 1989295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (void)tt_loader_init( &loader, size, glyph, load_flags, TRUE ); 1990295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner (void)load_truetype_glyph( &loader, glyph_index, 0, TRUE ); 1991295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->linearHoriAdvance = loader.linear; 1992295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->linearVertAdvance = loader.top_bearing + loader.bbox.yMax - 1993295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner loader.vadvance; 1994295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( face->postscript.isFixedPitch && 1995295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner ( load_flags & FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ) == 0 ) 1996295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner glyph->linearHoriAdvance = face->horizontal.advance_Width_Max; 1997295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 1998295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 1999049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Ok; 2000295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 2001049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2002049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2003049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ 2004049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2005049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if FT_LOAD_NO_SCALE is not set, `ttmetrics' must be valid */ 2006049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !( load_flags & FT_LOAD_NO_SCALE ) && !size->ttmetrics.valid ) 2007049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Invalid_Size_Handle; 2008049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2009049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( load_flags & FT_LOAD_SBITS_ONLY ) 2010049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return TT_Err_Invalid_Argument; 2011049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2012295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner error = tt_loader_init( &loader, size, glyph, load_flags, FALSE ); 2013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 2014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 2015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->format = FT_GLYPH_FORMAT_OUTLINE; 2017049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->num_subglyphs = 0; 2018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->outline.flags = 0; 2019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* main loading loop */ 2021295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner error = load_truetype_glyph( &loader, glyph_index, 0, FALSE ); 2022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !error ) 2023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( glyph->format == FT_GLYPH_FORMAT_COMPOSITE ) 2025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->num_subglyphs = loader.gloader->base.num_subglyphs; 2027049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->subglyphs = loader.gloader->base.subglyphs; 2028049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2029049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 2030049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 2031049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->outline = loader.gloader->base.outline; 2032049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->outline.flags &= ~FT_OUTLINE_SINGLE_PASS; 2033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2034049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* In case bit 1 of the `flags' field in the `head' table isn't */ 2035049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* set, translate array so that (0,0) is the glyph's origin. */ 2036049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( face->header.Flags & 2 ) == 0 && loader.pp1.x ) 2037049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Translate( &glyph->outline, -loader.pp1.x, 0 ); 2038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2039049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 20400a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#ifdef TT_USE_BYTECODE_INTERPRETER 20410a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 20420a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( IS_HINTED( load_flags ) ) 20430a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 20440a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project if ( loader.exec->GS.scan_control ) 20450a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 20460a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* convert scan conversion mode to FT_OUTLINE_XXX flags */ 20470a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project switch ( loader.exec->GS.scan_type ) 20480a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project { 20490a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project case 0: /* simple drop-outs including stubs */ 20500a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project glyph->outline.flags |= FT_OUTLINE_INCLUDE_STUBS; 20510a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project break; 20520a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project case 1: /* simple drop-outs excluding stubs */ 20530a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project /* nothing; it's the default rendering mode */ 20540a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project break; 20550a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project case 4: /* smart drop-outs including stubs */ 20560a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS | 20570a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_OUTLINE_INCLUDE_STUBS; 20580a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project break; 20590a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project case 5: /* smart drop-outs excluding stubs */ 20600a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS; 20610a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project break; 20620a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 20630a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project default: /* no drop-out control */ 20640a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; 20650a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project break; 20660a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 20670a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 2068295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner else 20690a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; 20700a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project } 20710a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 20720a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#endif /* TT_USE_BYTECODE_INTERPRETER */ 20730a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 2074049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project compute_glyph_metrics( &loader, glyph_index ); 2075049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2076049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2077049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Set the `high precision' bit flag. */ 2078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This is _critical_ to get correct output for monochrome */ 2079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* TrueType glyphs at all sizes using the bytecode interpreter. */ 2080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 2081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !( load_flags & FT_LOAD_NO_SCALE ) && 2082049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size->root.metrics.y_ppem < 24 ) 2083049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; 2084049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2085049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 2086049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 2087049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2088049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2089049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 2090