aftypes.h revision 727dee178a392d20eb050d0c446f2fcc29058fa1
1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* aftypes.h */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* Auto-fitter types (specification only). */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 7727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease/* Copyright 2003-2009, 2011-2012 by */ 8049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* David Turner, Robert Wilhelm, and Werner Lemberg. */ 9049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 10049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* This file is part of the FreeType project, and may only be used, */ 11049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* modified, and distributed under the terms of the FreeType project */ 12049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* this file you indicate that you have read the license and */ 14049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* understand and accept it fully. */ 15049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 16049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 17049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 18049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 19049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /************************************************************************* 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * The auto-fitter is a complete rewrite of the old auto-hinter. 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Its main feature is the ability to differentiate between different 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * scripts in order to apply language-specific rules. 24049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 25049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * The code has also been compartmentized into several entities that 26049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * should make algorithmic experimentation easier than with the old 27049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * code. 28049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 29049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Finally, we get rid of the Catharon license, since this code is 30049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * released under the FreeType one. 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 32049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *************************************************************************/ 33049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 34049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 35049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifndef __AFTYPES_H__ 36049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define __AFTYPES_H__ 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include <ft2build.h> 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_FREETYPE_H 41049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_OUTLINE_H 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_OBJECTS_H 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_DEBUG_H 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source ProjectFT_BEGIN_HEADER 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 50049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 51049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** D E B U G G I N G *****/ 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 54049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 55049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 56aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#ifdef FT_DEBUG_AUTOFIT 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 580a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#include FT_CONFIG_STANDARD_LIBRARY_H 590a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Projectextern int _af_debug_disable_horz_hints; 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Projectextern int _af_debug_disable_vert_hints; 62049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Projectextern int _af_debug_disable_blue_hints; 63049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Projectextern void* _af_debug_hints; 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 65aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif /* FT_DEBUG_AUTOFIT */ 66049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 68049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** U T I L I T Y S T U F F *****/ 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 73049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 75049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_WidthRec_ 77049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 78049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos org; /* original position/width in font units */ 79049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos cur; /* current/scaled position/width in device sub-pixels */ 80049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos fit; /* current/fitted position/width in device sub-pixels */ 81049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 82049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_WidthRec, *AF_Width; 83049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 84049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 85049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL( void ) 86049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_sort_pos( FT_UInt count, 87049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos* table ); 88049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 89049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL( void ) 90727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease af_sort_and_quantize_widths( FT_UInt* count, 91727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_Width widths, 92727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_Pos threshold ); 93049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 94049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 95049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 96049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 97049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 98049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** A N G L E T Y P E S *****/ 99049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 100049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 101049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * The auto-fitter doesn't need a very high angular accuracy; 105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * this allows us to speed up some computations considerably with a 106049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * light Cordic algorithm (see afangles.c). 107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef FT_Int AF_Angle; 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_ANGLE_PI 256 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_ANGLE_2PI ( AF_ANGLE_PI * 2 ) 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_ANGLE_PI2 ( AF_ANGLE_PI / 2 ) 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_ANGLE_PI4 ( AF_ANGLE_PI / 4 ) 116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * compute the angle of a given 2-D vector 121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL( AF_Angle ) 123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_angle_atan( FT_Pos dx, 124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos dy ); 125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * compute `angle2 - angle1'; the result is always within 129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1] 130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_LOCAL( AF_Angle ) 132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project af_angle_diff( AF_Angle angle1, 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Angle angle2 ); 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* 0 */ 135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 137049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_ANGLE_DIFF( result, angle1, angle2 ) \ 138049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_BEGIN_STMNT \ 139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Angle _delta = (angle2) - (angle1); \ 140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project \ 141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project \ 142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project _delta %= AF_ANGLE_2PI; \ 143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( _delta < 0 ) \ 144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project _delta += AF_ANGLE_2PI; \ 145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project \ 146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( _delta > AF_ANGLE_PI ) \ 147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project _delta -= AF_ANGLE_2PI; \ 148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project \ 149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project result = _delta; \ 150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_END_STMNT 151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* opaque handle to glyph-specific hints -- see `afhints.h' for more 154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * details 155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_GlyphHintsRec_* AF_GlyphHints; 157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 159049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 160049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** S C A L E R S *****/ 163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * A scaler models the target pixel device that will receive the 169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * auto-hinted glyph image. 170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef enum AF_ScalerFlags_ 173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCALER_FLAG_NO_HORIZONTAL = 1, /* disable horizontal hinting */ 175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCALER_FLAG_NO_VERTICAL = 2, /* disable vertical hinting */ 176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCALER_FLAG_NO_ADVANCE = 4 /* disable advance hinting */ 177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_ScalerFlags; 179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_ScalerRec_ 182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Face face; /* source font face */ 184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed x_scale; /* from font units to 1/64th device pixels */ 185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Fixed y_scale; /* from font units to 1/64th device pixels */ 186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos x_delta; /* in 1/64th device pixels */ 187049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos y_delta; /* in 1/64th device pixels */ 188049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Render_Mode render_mode; /* monochrome, anti-aliased, LCD, etc. */ 189049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt32 flags; /* additional control flags, see above */ 190049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_ScalerRec, *AF_Scaler; 192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define AF_SCALER_EQUAL_SCALES( a, b ) \ 195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( (a)->x_scale == (b)->x_scale && \ 196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (a)->y_scale == (b)->y_scale && \ 197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (a)->x_delta == (b)->x_delta && \ 198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (a)->y_delta == (b)->y_delta ) 199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 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 /***** S C R I P T S *****/ 205049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /***** *****/ 206049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* 210aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner * The list of known scripts. Each different script corresponds to the 211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * following information: 212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * - A set of Unicode ranges to test whether the face supports the 214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * script. 215049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 216049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * - A specific global analyzer that will compute global metrics 217049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * specific to the script. 218049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * - A specific glyph analyzer that will compute segments and 220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * edges for each glyph covered by the script. 221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * - A specific grid-fitting algorithm that will distort the 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * scaled glyph outline according to the results of the glyph 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * analyzer. 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * Note that a given analyzer and/or grid-fitting algorithm can be 227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * used by more than one script. 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef enum AF_Script_ 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 232727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_SCRIPT_DUMMY = 0, 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCRIPT_LATIN = 1, 234049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCRIPT_CJK = 2, 23541371e1e39c8528eb0c4bc40683c736e6683e60cEric Vannier AF_SCRIPT_INDIC = 3, 236049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#ifdef FT_OPTION_AUTOFIT2 237727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_SCRIPT_LATIN2 = 4, 238049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif 239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* add new scripts here. Don't forget to update the list in */ 241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* `afglobal.c'. */ 242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_SCRIPT_MAX /* do not remove */ 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_Script; 246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 248049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_ScriptClassRec_ const* AF_ScriptClass; 249727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals; 250049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 251049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_ScriptMetricsRec_ 252049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptClass clazz; 254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScalerRec scaler; 255295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Bool digits_have_same_width; 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 257727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_FaceGlobals globals; /* to access properties */ 258727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease 259049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_ScriptMetricsRec, *AF_ScriptMetrics; 260049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 261049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 262049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This function parses an FT_Face to compute global metrics for 263049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project * a specific script. 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project */ 265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef FT_Error 266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (*AF_Script_InitMetricsFunc)( AF_ScriptMetrics metrics, 267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Face face ); 268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef void 270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (*AF_Script_ScaleMetricsFunc)( AF_ScriptMetrics metrics, 271049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Scaler scaler ); 272049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef void 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (*AF_Script_DoneMetricsFunc)( AF_ScriptMetrics metrics ); 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef FT_Error 278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (*AF_Script_InitHintsFunc)( AF_GlyphHints hints, 279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics metrics ); 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef void 282049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (*AF_Script_ApplyHintsFunc)( AF_GlyphHints hints, 283049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline, 284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_ScriptMetrics metrics ); 285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 286049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_Script_UniRangeRec_ 288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt32 first; 290049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt32 last; 291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_Script_UniRangeRec; 293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 294295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) } 295295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef const AF_Script_UniRangeRec *AF_Script_UniRange; 297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project typedef struct AF_ScriptClassRec_ 300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 301727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_Script script; 302727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */ 303727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_UInt32 standard_char; /* for default width and height */ 304049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 305295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner FT_Offset script_metrics_size; 306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_InitMetricsFunc script_metrics_init; 307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_ScaleMetricsFunc script_metrics_scale; 308049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_DoneMetricsFunc script_metrics_done; 309049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 310049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_InitHintsFunc script_hints_init; 311049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project AF_Script_ApplyHintsFunc script_hints_apply; 312049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 313049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } AF_ScriptClassRec; 314049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 315aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 316aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner /* Declare and define vtables for classes */ 317295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner#ifndef FT_CONFIG_OPTION_PIC 318295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 319aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#define AF_DECLARE_SCRIPT_CLASS( script_class ) \ 320aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_CALLBACK_TABLE const AF_ScriptClassRec \ 321295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner script_class; 322295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 323727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, def_char, \ 324727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease m_size, \ 325aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner m_init, m_scale, m_done, h_init, h_apply ) \ 326727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec script_class = \ 327aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { \ 328aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner script_, \ 329aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ranges, \ 330727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease def_char, \ 331aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner \ 332aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner m_size, \ 333aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner \ 334aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner m_init, \ 335aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner m_scale, \ 336aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner m_done, \ 337aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner \ 338aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner h_init, \ 339aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner h_apply \ 340295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner }; 341295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 342aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#else /* FT_CONFIG_OPTION_PIC */ 343aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 344727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease#define AF_DECLARE_SCRIPT_CLASS( script_class ) \ 345727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_LOCAL( void ) \ 346727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac ); 347aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 348727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, def_char, \ 349727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease m_size, \ 350aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner m_init, m_scale, m_done, h_init, h_apply ) \ 351aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner FT_LOCAL_DEF( void ) \ 352727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac ) \ 353aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner { \ 354aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script = script_; \ 355aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_uni_ranges = ranges; \ 356727dee178a392d20eb050d0c446f2fcc29058fa1Victoria Lease ac->default_char = def_char; \ 357aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner \ 358aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_metrics_size = m_size; \ 359aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner \ 360aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_metrics_init = m_init; \ 361aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_metrics_scale = m_scale; \ 362aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_metrics_done = m_done; \ 363aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner \ 364aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_hints_init = h_init; \ 365aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner ac->script_hints_apply = h_apply; \ 366295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner } 367aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner 368aeb407daf3711a10a27f3bc2223c5eb05158076eDavid 'Digit' Turner#endif /* FT_CONFIG_OPTION_PIC */ 369295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner 370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source ProjectFT_END_HEADER 374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* __AFTYPES_H__ */ 376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 379