1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* ttsbit.c */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* TrueType and OpenType embedded bitmap support (body). */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 7aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */ 8aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich/* 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#include <ft2build.h> 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_DEBUG_H 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_STREAM_H 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_TRUETYPE_TAGS_H 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 24049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 25049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Alas, the memory-optimized sbit loader can't be used when implementing 26049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * the `old internals' hack 27049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 2877f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner#ifndef FT_CONFIG_OPTION_OLD_INTERNALS 29049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 30049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "ttsbit0.c" 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 3277f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner#else /* FT_CONFIG_OPTION_OLD_INTERNALS */ 33049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 34049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include <ft2build.h> 35049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_DEBUG_H 36049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_STREAM_H 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_TRUETYPE_TAGS_H 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "ttsbit.h" 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include "sferrors.h" 41049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* messages during execution. */ 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_COMPONENT 50049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_COMPONENT trace_ttsbit 51049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 54049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 55049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 56049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* blit_sbit */ 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 58049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Blits a bitmap from an input stream into a given target. Supports */ 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* x and y offsets as well as byte padded lines. */ 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 62049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 63049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* target :: The target bitmap/pixmap. */ 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 65049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* source :: The input packed bitmap data. */ 66049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* line_bits :: The number of bits per line. */ 68049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* byte_padded :: A flag which is true if lines are byte-padded. */ 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* x_offset :: The horizontal offset. */ 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 73049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* y_offset :: The vertical offset. */ 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 75049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Note> */ 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* IMPORTANT: The x and y offsets are relative to the top corner of */ 77049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the target bitmap (unlike the normal TrueType */ 78049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* convention). A positive y offset indicates a downwards */ 79049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* direction! */ 80049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 81049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 82049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project blit_sbit( FT_Bitmap* target, 83049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* source, 84049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int line_bits, 85049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool byte_padded, 86049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int x_offset, 8777f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner FT_Int y_offset, 8877f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner FT_Int source_height ) 89049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 90049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* line_buff; 91049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int line_incr; 92049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int height; 93049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 94049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort acc; 95049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt loaded; 96049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 97049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 98049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* first of all, compute starting write position */ 99049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_incr = target->pitch; 100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_buff = target->buffer; 101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( line_incr < 0 ) 103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_buff -= line_incr * ( target->rows - 1 ); 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_buff += ( x_offset >> 3 ) + y_offset * line_incr; 106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We use the extra-classic `accumulator' trick to extract the bits */ 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* from the source byte stream. */ 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Namely, the variable `acc' is a 16-bit accumulator containing the */ 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* last `loaded' bits from the input stream. The bits are shifted to */ 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the upmost position in `acc'. */ 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acc = 0; /* clear accumulator */ 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loaded = 0; /* no bits were loaded */ 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 12177f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner for ( height = source_height; height > 0; height-- ) 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* cur = line_buff; /* current write cursor */ 124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int count = line_bits; /* # of bits to extract per line */ 125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte shift = (FT_Byte)( x_offset & 7 ); /* current write shift */ 126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte space = (FT_Byte)( 8 - shift ); 127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* first of all, read individual source bytes */ 130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( count >= 8 ) 131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count -= 8; 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte val; 137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* ensure that there are at least 8 bits in the accumulator */ 140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( loaded < 8 ) 141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acc |= (FT_UShort)((FT_UShort)*source++ << ( 8 - loaded )); 143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loaded += 8; 144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now write one byte */ 147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project val = (FT_Byte)( acc >> 8 ); 148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( shift ) 149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[0] |= (FT_Byte)( val >> shift ); 151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[1] |= (FT_Byte)( val << space ); 152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[0] |= val; 155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur++; 157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acc <<= 8; /* remove bits from accumulator */ 158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loaded -= 8; 159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count -= 8; 160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( count >= 0 ); 162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* restore `count' to correct value */ 165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count += 8; 166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now write remaining bits (count < 8) */ 169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( count > 0 ) 170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte val; 172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* ensure that there are at least `count' bits in the accumulator */ 175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( (FT_Int)loaded < count ) 176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acc |= (FT_UShort)((FT_UShort)*source++ << ( 8 - loaded )); 178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loaded += 8; 179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now write remaining bits */ 182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project val = (FT_Byte)( ( (FT_Byte)( acc >> 8 ) ) & ~( 0xFF >> count ) ); 183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[0] |= (FT_Byte)( val >> shift ); 184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( count > space ) 186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[1] |= (FT_Byte)( val << space ); 187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acc <<= count; 189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loaded -= count; 190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now, skip to next line */ 193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( byte_padded ) 194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acc = 0; 196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project loaded = 0; /* clear accumulator on byte-padded lines */ 197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_buff += line_incr; 200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 203049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 204049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field sbit_metrics_fields[] = 205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_SBit_MetricsRec 208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 8 ), 210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( height ), 211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( width ), 212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( horiBearingX ), 214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( horiBearingY ), 215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( horiAdvance ), 216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( vertBearingX ), 218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( vertBearingY ), 219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( vertAdvance ), 220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Load_SBit_Const_Metrics */ 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the metrics for `EBLC' index tables format 2 and 5. */ 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* range :: The target range. */ 234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 235049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Load_SBit_Const_Metrics( TT_SBit_Range range, 242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_READ_ULONG( range->image_size ) ) 248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_STREAM_READ_FIELDS( sbit_metrics_fields, &range->metrics ); 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 /* */ 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Load_SBit_Range_Codes */ 258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the range codes for `EBLC' index tables format 4 and 5. */ 261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* range :: The target range. */ 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load_offsets :: A flag whether to load the glyph offset table. */ 268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Load_SBit_Range_Codes( TT_SBit_Range range, 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream, 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool load_offsets ) 276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong count, n, size; 279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_READ_ULONG( count ) ) 283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->num_glyphs = count; 286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Allocate glyph offsets table if needed */ 288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( load_offsets ) 289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_NEW_ARRAY( range->glyph_offsets, count ) ) 291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size = count * 4L; 294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size = count * 2L; 297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Allocate glyph codes table and access frame */ 299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_NEW_ARRAY ( range->glyph_codes, count ) || 300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ENTER( size ) ) 301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < count; n++ ) 304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->glyph_codes[n] = FT_GET_USHORT(); 306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( load_offsets ) 308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->glyph_offsets[n] = (FT_ULong)range->image_offset + 309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GET_USHORT(); 310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 315049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 316049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 317049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 318049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Load_SBit_Range */ 323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads a given `EBLC' index/range table. */ 326049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* range :: The target range. */ 329049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 330049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 331049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 332049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 333049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Load_SBit_Range( TT_SBit_Range range, 337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 343049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch( range->index_format ) 344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: /* variable metrics with 4-byte offsets */ 346049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 3: /* variable metrics with 2-byte offsets */ 347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong num_glyphs, n; 349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int size_elem; 350049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool large = FT_BOOL( range->index_format == 1 ); 351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( range->last_glyph < range->first_glyph ) 355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 356049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = SFNT_Err_Invalid_File_Format; 357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_glyphs = range->last_glyph - range->first_glyph + 1L; 361049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->num_glyphs = num_glyphs; 362049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_glyphs++; /* XXX: BEWARE - see spec */ 363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 364049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size_elem = large ? 4 : 2; 365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 366049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_NEW_ARRAY( range->glyph_offsets, num_glyphs ) || 367049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ENTER( num_glyphs * size_elem ) ) 368049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 369049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < num_glyphs; n++ ) 371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->glyph_offsets[n] = (FT_ULong)( range->image_offset + 372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( large ? FT_GET_ULONG() 373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : FT_GET_USHORT() ) ); 374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: /* all glyphs have identical metrics */ 379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Const_Metrics( range, stream ); 380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 381049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 4: 383049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Range_Codes( range, stream, 1 ); 384049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 385049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 386049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 5: 387049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Const_Metrics( range, stream ); 388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !error ) 389049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Range_Codes( range, stream, 0 ); 390049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 391049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 392049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: 393049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = SFNT_Err_Invalid_File_Format; 394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 400049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 401049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 402049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 403049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 404049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_eblc */ 405049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 406049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 407049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads the table of embedded bitmap sizes for this face. */ 408049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 409049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 410049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: The target face object. */ 411049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 412049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 413049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 414049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 417049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_eblc( TT_Face face, 419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 421aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich FT_Error error = SFNT_Err_Ok; 422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed version; 424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong num_strikes; 425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong table_base; 426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field sbit_line_metrics_fields[] = 428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_SBit_LineMetricsRec 431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* no FT_FRAME_START */ 433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( ascender ), 434049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( descender ), 435049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( max_width ), 436049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 437049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( caret_slope_numerator ), 438049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( caret_slope_denominator ), 439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( caret_offset ), 440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( min_origin_SB ), 442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( min_advance_SB ), 443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( max_before_BL ), 444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( min_after_BL ), 445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( pads[0] ), 446049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( pads[1] ), 447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field strike_start_fields[] = 451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_SBit_StrikeRec 454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* no FT_FRAME_START */ 456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( ranges_offset ), 457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_SKIP_LONG, 458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( num_ranges ), 459049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ULONG( color_ref ), 460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field strike_end_fields[] = 464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* no FT_FRAME_START */ 466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( start_glyph ), 467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_USHORT( end_glyph ), 468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( x_ppem ), 469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( y_ppem ), 470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE ( bit_depth ), 471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR ( flags ), 472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 474049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 475049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->num_sbit_strikes = 0; 477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* this table is optional */ 479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_EBLC, stream, 0 ); 480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_bloc, stream, 0 ); 482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 485049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project table_base = FT_STREAM_POS(); 486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_FRAME_ENTER( 8L ) ) 487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project version = FT_GET_LONG(); 490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_strikes = FT_GET_ULONG(); 491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check version number and strike count */ 495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( version != 0x00020000L || 496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project num_strikes >= 0x10000L ) 497049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 498295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" )); 499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = SFNT_Err_Invalid_File_Format; 500049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* allocate the strikes table */ 505049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_NEW_ARRAY( face->sbit_strikes, num_strikes ) ) 506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 508049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->num_sbit_strikes = num_strikes; 509049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 510049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now read each strike table separately */ 511049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 512049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike = face->sbit_strikes; 513049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong count = num_strikes; 514049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 515049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 516049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_FRAME_ENTER( 48L * num_strikes ) ) 517049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 518049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 519049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( count > 0 ) 520049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 521049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( strike_start_fields, strike ) || 522049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_STREAM_READ_FIELDS( sbit_line_metrics_fields, &strike->hori ) || 523049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_STREAM_READ_FIELDS( sbit_line_metrics_fields, &strike->vert ) || 524049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_STREAM_READ_FIELDS( strike_end_fields, strike ) ) 525049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 526049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 527049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count--; 528049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike++; 529049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 530049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 531049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 532049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 533049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 534049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* allocate the index ranges for each strike table */ 535049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 536049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike = face->sbit_strikes; 537049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong count = num_strikes; 538049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 539049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 540049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( count > 0 ) 541049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 542049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range range; 543049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong count2 = strike->num_ranges; 544049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 545049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* read each range */ 547049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( table_base + strike->ranges_offset ) || 548049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ENTER( strike->num_ranges * 8L ) ) 549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_NEW_ARRAY( strike->sbit_ranges, strike->num_ranges ) ) 552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range = strike->sbit_ranges; 555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( count2 > 0 ) 556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 557049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->first_glyph = FT_GET_USHORT(); 558049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->last_glyph = FT_GET_USHORT(); 559049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->table_offset = table_base + strike->ranges_offset + 560049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GET_ULONG(); 561049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count2--; 562049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range++; 563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Now, read each index table */ 568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count2 = strike->num_ranges; 569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range = strike->sbit_ranges; 570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( count2 > 0 ) 571049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 572049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Read the header */ 573049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( range->table_offset ) || 574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_ENTER( 8L ) ) 575049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 576049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 577049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->index_format = FT_GET_USHORT(); 578049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->image_format = FT_GET_USHORT(); 579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->image_offset = FT_GET_ULONG(); 580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Range( range, stream ); 584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 585049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 586049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count2--; 588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range++; 589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 590049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 591049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count--; 592049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike++; 593049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 594049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 595049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 596049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 597049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 598049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 599049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 600049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 601049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 602049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 603049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 604049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_free_eblc */ 605049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 606049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 607049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Releases the embedded bitmap tables. */ 608049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 609049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 610049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: The target face object. */ 611049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 612049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( void ) 613049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_free_eblc( TT_Face face ) 614049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 615049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = face->root.memory; 616049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike = face->sbit_strikes; 617049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike_limit = strike + face->num_sbit_strikes; 618049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 619049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 620049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( strike ) 621049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 622049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; strike < strike_limit; strike++ ) 623049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 624049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range range = strike->sbit_ranges; 625049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range range_limit = range + strike->num_ranges; 626049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 627049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 628049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( range ) 629049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 630049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; range < range_limit; range++ ) 631049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 632049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* release the glyph offsets and codes tables */ 633049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* where appropriate */ 634049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( range->glyph_offsets ); 635049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( range->glyph_codes ); 636049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 637049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 638049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( strike->sbit_ranges ); 639049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike->num_ranges = 0; 640049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 641049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( face->sbit_strikes ); 642049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 643049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->num_sbit_strikes = 0; 644049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 645049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 646049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 647049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 648049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_set_sbit_strike( TT_Face face, 649049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Size_Request req, 650049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong* astrike_index ) 651049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 652049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Match_Size( (FT_Face)face, req, 0, astrike_index ); 653049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 654049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 655049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 656049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 657049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_strike_metrics( TT_Face face, 658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong strike_index, 659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Size_Metrics* metrics ) 660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 661049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike; 662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 663049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 664049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( strike_index >= face->num_sbit_strikes ) 665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_Argument; 666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike = face->sbit_strikes + strike_index; 668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->x_ppem = strike->x_ppem; 670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->y_ppem = strike->y_ppem; 671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->ascender = strike->hori.ascender << 6; 673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->descender = strike->hori.descender << 6; 674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 675049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: Is this correct? */ 676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->max_advance = ( strike->hori.min_origin_SB + 677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike->hori.max_width + 678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike->hori.min_advance_SB ) << 6; 679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 680049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->height = metrics->ascender - metrics->descender; 681049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 682049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Ok; 683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 684049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 685049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 686049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 687049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 688049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 689049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* find_sbit_range */ 690049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 691049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 692049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Scans a given strike's ranges and return, for a given glyph */ 693049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* index, the corresponding sbit range, and `EBDT' offset. */ 694049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 695049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 696049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph_index :: The glyph index. */ 697049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 698049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* strike :: The source/current sbit strike. */ 699049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 700049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 701049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* arange :: The sbit range containing the glyph index. */ 702049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 703049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ 704049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 705049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 706049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means the glyph index was found. */ 707049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 708049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 709049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project find_sbit_range( FT_UInt glyph_index, 710049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike, 711049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range *arange, 712049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong *aglyph_offset ) 713049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 714049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_RangeRec *range, *range_limit; 715049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 716049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 717049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check whether the glyph index is within this strike's */ 718049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph range */ 719049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( glyph_index < (FT_UInt)strike->start_glyph || 720049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index > (FT_UInt)strike->end_glyph ) 721049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 722049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 723049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* scan all ranges in strike */ 724049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range = strike->sbit_ranges; 725049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range_limit = range + strike->num_ranges; 726049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !range ) 727049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 728049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 729049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; range < range_limit; range++ ) 730049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 731049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( glyph_index >= (FT_UInt)range->first_glyph && 732049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_index <= (FT_UInt)range->last_glyph ) 733049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 734049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort delta = (FT_UShort)( glyph_index - range->first_glyph ); 735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( range->index_format ) 738049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 739049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: 740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 3: 741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglyph_offset = range->glyph_offsets[delta]; 742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 743049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: 745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglyph_offset = range->image_offset + 746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->image_size * delta; 747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 4: 750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 5: 751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong n; 753049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 754049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 755049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < range->num_glyphs; n++ ) 756049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 757049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( (FT_UInt)range->glyph_codes[n] == glyph_index ) 758049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 759049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( range->index_format == 4 ) 760049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglyph_offset = range->glyph_offsets[n]; 761049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 762049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglyph_offset = range->image_offset + 763049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n * range->image_size; 764049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Found; 765049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 766049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 767049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 768049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* fall-through */ 770049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: 771049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 772049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 773049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 774049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Found: 775049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* return successfully! */ 776049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *arange = range; 77777f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner return SFNT_Err_Ok; 778049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 779049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 780049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Fail: 782049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *arange = 0; 783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglyph_offset = 0; 784049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 785049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_Argument; 786049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 787049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 788049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 789049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 791049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_find_sbit_image */ 793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Checks whether an embedded bitmap (an `sbit') exists for a given */ 796049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph, at a given strike. */ 797049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 798049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 799049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: The target face object. */ 800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph_index :: The glyph index. */ 802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 803049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* strike_index :: The current strike index. */ 804049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* arange :: The SBit range containing the glyph index. */ 807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* astrike :: The SBit strike containing the glyph index. */ 809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* aglyph_offset :: The offset of the glyph data in `EBDT' table. */ 811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. Returns */ 814049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* SFNT_Err_Invalid_Argument if no sbit exists for the requested */ 815049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph. */ 816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL( FT_Error ) 818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_find_sbit_image( TT_Face face, 819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index, 820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong strike_index, 821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range *arange, 822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike *astrike, 823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong *aglyph_offset ) 824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike; 827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 829049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !face->sbit_strikes || 830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( face->num_sbit_strikes <= strike_index ) ) 831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike = &face->sbit_strikes[strike_index]; 834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = find_sbit_range( glyph_index, strike, 836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project arange, aglyph_offset ); 837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *astrike = strike; 841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Ok; 843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Fail: 845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* no embedded bitmap for this glyph in face */ 846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *arange = 0; 847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *astrike = 0; 848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *aglyph_offset = 0; 849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_Argument; 851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_load_sbit_metrics */ 858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Gets the big metrics for a given SBit. */ 861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* range :: The SBit range containing the glyph. */ 866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* big_metrics :: A big SBit metrics structure for the glyph. */ 869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. */ 872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Note> */ 874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The stream cursor must be positioned at the glyph's offset within */ 875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the `EBDT' table before the call. */ 876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* If the image format uses variable metrics, the stream cursor is */ 878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* positioned just after the metrics header in the `EBDT' table on */ 879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* function exit. */ 880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL( FT_Error ) 882049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_load_sbit_metrics( FT_Stream stream, 883049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range range, 884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Metrics metrics ) 885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error = SFNT_Err_Ok; 887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( range->image_format ) 890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: 892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: 893049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 8: 894049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* variable small metrics */ 895049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 896049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_SmallMetricsRec smetrics; 897049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 898049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static const FT_Frame_Field sbit_small_metrics_fields[] = 899049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 900049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_STRUCTURE 901049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_STRUCTURE TT_SBit_SmallMetricsRec 902049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 903049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_START( 5 ), 904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( height ), 905049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( width ), 906049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( bearingX ), 907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_CHAR( bearingY ), 908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_BYTE( advance ), 909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_END 910049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project }; 911049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 913049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* read small metrics */ 914049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( sbit_small_metrics_fields, &smetrics ) ) 915049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* convert it to a big metrics */ 918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->height = smetrics.height; 919049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->width = smetrics.width; 920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->horiBearingX = smetrics.bearingX; 921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->horiBearingY = smetrics.bearingY; 922049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->horiAdvance = smetrics.advance; 923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* these metrics are made up at a higher level when */ 925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* needed. */ 926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertBearingX = 0; 927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertBearingY = 0; 928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertAdvance = 0; 929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 932049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 6: 933049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 7: 934049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 9: 935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* variable big metrics */ 936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_READ_FIELDS( sbit_metrics_fields, metrics ) ) 937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 5: 941049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: /* constant metrics */ 942049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( range->index_format == 2 || range->index_format == 5 ) 943049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *metrics = range->metrics; 944049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 945049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_File_Format; 946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 947049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 948049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 949049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 951049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 952049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* crop_bitmap */ 957049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 958049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Crops a bitmap to its tightest bounding box, and adjusts its */ 960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* metrics. */ 961049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 962049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <InOut> */ 963049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* map :: The bitmap. */ 964049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 965049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* metrics :: The corresponding metrics structure. */ 966049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static void 968049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project crop_bitmap( FT_Bitmap* map, 969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Metrics metrics ) 970049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 971049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 973049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* In this situation, some bounding boxes of embedded bitmaps are too */ 974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* large. We need to crop it to a reasonable size. */ 975049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 976049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* --------- */ 977049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | | ----- */ 978049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | *** | |***| */ 979049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | * | | * | */ 980049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | * | ------> | * | */ 981049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | * | | * | */ 982049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | * | | * | */ 983049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* | *** | |***| */ 984049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* --------- ----- */ 985049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 986049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 987049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 988049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int rows, count; 989049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Long line_len; 990049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* line; 991049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 992049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 993049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 994049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 995049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* first of all, check the top-most lines of the bitmap, and remove */ 996049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* them if they're empty. */ 997049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 998049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 999049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = (FT_Byte*)map->buffer; 1000049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project rows = map->rows; 1001049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_len = map->pitch; 1002049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1003049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1004049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( count = 0; count < rows; count++ ) 1005049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1006049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* cur = line; 1007049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit = line + line_len; 1008049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1009049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1010049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; cur < limit; cur++ ) 1011049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( cur[0] ) 1012049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Found_Top; 1013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the current line was empty - skip to next one */ 1015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = limit; 1016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1017049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Found_Top: 1019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that we have at least one filled line */ 1020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( count >= rows ) 1021049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Empty_Bitmap; 1022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now, crop the empty upper lines */ 1024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( count > 0 ) 1025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = (FT_Byte*)map->buffer; 1027049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1028049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MEM_MOVE( line, line + count * line_len, 1029049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( rows - count ) * line_len ); 1030049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1031049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->height = (FT_Byte)( metrics->height - count ); 1032049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->horiBearingY = (FT_Char)( metrics->horiBearingY - count ); 1033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertBearingY = (FT_Char)( metrics->vertBearingY - count ); 1034049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1035049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->rows -= count; 1036049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project rows -= count; 1037049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1039049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1040049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1041049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1042049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* second, crop the lower lines */ 1043049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1044049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1045049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = (FT_Byte*)map->buffer + ( rows - 1 ) * line_len; 1046049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1047049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( count = 0; count < rows; count++ ) 1048049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1049049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* cur = line; 1050049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit = line + line_len; 1051049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1052049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1053049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; cur < limit; cur++ ) 1054049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( cur[0] ) 1055049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Found_Bottom; 1056049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1057049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the current line was empty - skip to previous one */ 1058049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line -= line_len; 1059049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1060049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1061049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Found_Bottom: 1062049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( count > 0 ) 1063049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1064049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->height = (FT_Byte)( metrics->height - count ); 1065049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project rows -= count; 1066049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->rows -= count; 1067049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1068049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1069049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1070049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1071049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1072049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* third, get rid of the space on the left side of the glyph */ 1073049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1074049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 1075049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1076049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit; 1077049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = (FT_Byte*)map->buffer; 1080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = line + rows * line_len; 1081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1082049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; line < limit; line += line_len ) 1083049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( line[0] & 0x80 ) 1084049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Found_Left; 1085049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1086049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* shift the whole glyph one pixel to the left */ 1087049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = (FT_Byte*)map->buffer; 1088049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = line + rows * line_len; 1089049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1090049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; line < limit; line += line_len ) 1091049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1092049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n, width = map->width; 1093049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte old; 1094049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* cur = line; 1095049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1096049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1097049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project old = (FT_Byte)(cur[0] << 1); 1098049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 8; n < width; n += 8 ) 1099049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte val; 1101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project val = cur[1]; 1104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[0] = (FT_Byte)( old | ( val >> 7 ) ); 1105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project old = (FT_Byte)( val << 1 ); 1106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur++; 1107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project cur[0] = old; 1109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->width--; 1112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->horiBearingX++; 1113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertBearingX++; 1114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->width--; 1115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( map->width > 0 ); 1117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Found_Left: 1119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***********************************************************************/ 1121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* finally, crop the bitmap width to get rid of the space on the right */ 1123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* side of the glyph. */ 1124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do 1126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int right = map->width - 1; 1128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte* limit; 1129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Byte mask; 1130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line = (FT_Byte*)map->buffer + ( right >> 3 ); 1133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = line + rows * line_len; 1134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project mask = (FT_Byte)( 0x80 >> ( right & 7 ) ); 1135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; line < limit; line += line_len ) 1137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( line[0] & mask ) 1138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Found_Right; 1139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* crop the whole glyph to the right */ 1141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->width--; 1142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->width--; 1143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( map->width > 0 ); 1145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Found_Right: 1147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* all right, the bitmap was cropped */ 1148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 1149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Empty_Bitmap: 1151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->width = 0; 1152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->rows = 0; 1153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pitch = 0; 1154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pixel_mode = FT_PIXEL_MODE_MONO; 1155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Load_SBit_Single( FT_Bitmap* map, 1160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int x_offset, 1161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int y_offset, 1162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int pix_bits, 1163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort image_format, 1164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Metrics metrics, 1165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream ) 1166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that the source bitmap fits into the target pixmap */ 1171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( x_offset < 0 || x_offset + metrics->width > map->width || 1172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_offset < 0 || y_offset + metrics->height > map->rows ) 1173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = SFNT_Err_Invalid_Argument; 1175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int glyph_width = metrics->width; 1181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int glyph_height = metrics->height; 1182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int glyph_size; 1183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int line_bits = pix_bits * glyph_width; 1184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bool pad_bytes = 0; 1185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* compute size of glyph image */ 1188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( image_format ) 1189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: /* byte-padded formats */ 1191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 6: 1192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int line_length; 1194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( pix_bits ) 1197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: 1199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_length = ( glyph_width + 7 ) >> 3; 1200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: 1202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_length = ( glyph_width + 3 ) >> 2; 1203049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1204049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 4: 1205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_length = ( glyph_width + 1 ) >> 1; 1206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: 1208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_length = glyph_width; 1209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_size = glyph_height * line_length; 1212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project pad_bytes = 1; 1213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: 1217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 5: 1218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 7: 1219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project line_bits = glyph_width * pix_bits; 1220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project glyph_size = ( glyph_height * line_bits + 7 ) >> 3; 1221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: /* invalid format */ 1224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_File_Format; 1225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Now read data and draw glyph into target pixmap */ 1228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_FRAME_ENTER( glyph_size ) ) 1229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* don't forget to multiply `x_offset' by `map->pix_bits' as */ 1232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the sbit blitter doesn't make a difference between pixmap */ 1233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* depths. */ 1234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project blit_sbit( map, (FT_Byte*)stream->cursor, line_bits, pad_bytes, 123577f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner x_offset * pix_bits, y_offset, metrics->height ); 1236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1237049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 1238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Error 1246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Load_SBit_Image( TT_SBit_Strike strike, 1247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range range, 1248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong ebdt_pos, 1249049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong glyph_offset, 1250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_GlyphSlot slot, 1251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int x_offset, 1252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int y_offset, 1253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream, 1254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Metrics metrics, 1255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int depth ) 1256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Memory memory = stream->memory; 1258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bitmap* map = &slot->bitmap; 1259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* place stream at beginning of glyph data and read metrics */ 1263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_STREAM_SEEK( ebdt_pos + glyph_offset ) ) 1264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = tt_load_sbit_metrics( stream, range, metrics ); 1267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This function is recursive. At the top-level call, we */ 1271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* compute the dimensions of the higher-level glyph to */ 1272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* allocate the final pixmap buffer. */ 1273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( depth == 0 ) 1274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Long size; 1276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->width = metrics->width; 1279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->rows = metrics->height; 1280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( strike->bit_depth ) 1282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: 1284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pixel_mode = FT_PIXEL_MODE_MONO; 1285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pitch = ( map->width + 7 ) >> 3; 1286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: 1289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pixel_mode = FT_PIXEL_MODE_GRAY2; 1290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pitch = ( map->width + 3 ) >> 2; 1291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 4: 1294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pixel_mode = FT_PIXEL_MODE_GRAY4; 1295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pitch = ( map->width + 1 ) >> 1; 1296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 8: 1299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pixel_mode = FT_PIXEL_MODE_GRAY; 1300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project map->pitch = map->width; 1301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: 1304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_File_Format; 1305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project size = map->rows * map->pitch; 1308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check that there is no empty image */ 1310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( size == 0 ) 1311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; /* exit successfully! */ 1312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = ft_glyphslot_alloc_bitmap( slot, size ); 1314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if (error) 1315049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1316049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1317049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1318049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( range->image_format ) 1319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 1: /* single sbit image - load it */ 1321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 2: 1322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 5: 1323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 6: 1324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 7: 1325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return Load_SBit_Single( map, x_offset, y_offset, strike->bit_depth, 1326049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project range->image_format, metrics, stream ); 1327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 8: /* compound format */ 132977f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner if ( FT_STREAM_SKIP( 1L ) ) 133077f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner { 133177f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner error = SFNT_Err_Invalid_Stream_Skip; 133277f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner goto Exit; 133377f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner } 1334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* fallthrough */ 1335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case 9: 1337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 1338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: /* invalid image format */ 1340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return SFNT_Err_Invalid_File_Format; 1341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1343049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* All right, we have a compound format. First of all, read */ 1344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the array of elements. */ 1345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1346aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner TT_SBit_Component components = NULL; 1347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Component comp; 1348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort num_components, count; 1349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1350049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_READ_USHORT( num_components ) || 1352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_NEW_ARRAY( components, num_components ) ) 1353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count = num_components; 1356049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_FRAME_ENTER( 4L * num_components ) ) 1358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail_Memory; 1359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( comp = components; count > 0; count--, comp++ ) 1361049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1362049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project comp->glyph_code = FT_GET_USHORT(); 1363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project comp->x_offset = FT_GET_CHAR(); 1364049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project comp->y_offset = FT_GET_CHAR(); 1365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1366049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1367049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FRAME_EXIT(); 1368049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1369049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Now recursively load each element glyph */ 1370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project count = num_components; 1371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project comp = components; 1372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; count > 0; count--, comp++ ) 1373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range elem_range; 1375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_MetricsRec elem_metrics; 1376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong elem_offset; 1377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* find the range for this element */ 1380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = find_sbit_range( comp->glyph_code, 1381049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project strike, 1382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &elem_range, 1383049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &elem_offset ); 1384049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1385049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail_Memory; 1386049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1387049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now load the element, recursively */ 1388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Image( strike, 1389049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project elem_range, 1390049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ebdt_pos, 1391049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project elem_offset, 1392049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project slot, 1393049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x_offset + comp->x_offset, 1394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y_offset + comp->y_offset, 1395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project stream, 1396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &elem_metrics, 1397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project depth + 1 ); 1398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail_Memory; 1400049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1401049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1402049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Fail_Memory: 1403049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( components ); 1404049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1405049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1406049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1407049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1408049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1409049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1410049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1411049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 1412049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1413049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Function> */ 1414049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* tt_face_load_sbit_image */ 1415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Description> */ 1417049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Loads a given glyph sbit image from the font resource. This also */ 1418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* returns its metrics. */ 1419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Input> */ 1421049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* face :: The target face object. */ 1422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* strike_index :: The current strike index. */ 1424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph_index :: The current glyph index. */ 1426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* load_flags :: The glyph load flags (the code checks for the flag */ 1428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FT_LOAD_CROP_BITMAP). */ 1429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* stream :: The input stream. */ 1431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Output> */ 1433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* map :: The target pixmap. */ 1434049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1435049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* metrics :: A big sbit metrics structure for the glyph image. */ 1436049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1437049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Return> */ 1438049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FreeType error code. 0 means success. Returns an error if no */ 1439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* glyph sbit exists for the index. */ 1440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* <Note> */ 1442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The `map.buffer' field is always freed before the glyph is loaded. */ 1443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 1444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL_DEF( FT_Error ) 1445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tt_face_load_sbit_image( TT_Face face, 1446049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong strike_index, 1447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt glyph_index, 1448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt load_flags, 1449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Stream stream, 1450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Bitmap *map, 1451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_MetricsRec *metrics ) 1452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 1454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ULong ebdt_pos, glyph_offset; 1455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Strike strike; 1457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project TT_SBit_Range range; 1458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1459049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Check whether there is a glyph sbit for the current index */ 1461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = tt_find_sbit_image( face, glyph_index, strike_index, 1462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &range, &strike, &glyph_offset ); 1463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now, find the location of the `EBDT' table in */ 1467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* the font file */ 1468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_EBDT, stream, 0 ); 1469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = face->goto_table( face, TTAG_bdat, stream, 0 ); 1471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1474049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ebdt_pos = FT_STREAM_POS(); 1475049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = Load_SBit_Image( strike, range, ebdt_pos, glyph_offset, 1477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project face->root.glyph, 0, 0, stream, metrics, 0 ); 1478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 1479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 1480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* setup vertical metrics if needed */ 1482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( strike->flags & 1 ) 1483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* in case of a horizontal strike only */ 1485049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int advance; 1486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project advance = strike->hori.ascender - strike->hori.descender; 1489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* some heuristic values */ 1491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertBearingX = (FT_Char)(-metrics->width / 2 ); 1493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertBearingY = (FT_Char)( ( advance - metrics->height ) / 2 ); 1494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project metrics->vertAdvance = (FT_Char)( advance * 12 / 10 ); 1495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1497049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Crop the bitmap now, unless specified otherwise */ 1498049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( load_flags & FT_LOAD_CROP_BITMAP ) 1499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project crop_bitmap( map, metrics ); 1500049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 1502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 1503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 150577f63d23f7d380b0ff02c18fd6a154ab9063128aDavid 'Digit' Turner#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ 1506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1508049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 1509