[autofit] Add adjustment database.
* src/autofit/afadjust.c, src/autofit/afadjust.h: New files. * include/freetype/internal/fttrace.h: Add 'afadjust' component. * src/autofit/autofit.c: Include `afadjust.c`. * src/autofit/rules.mk (AUTOF_DRV_SRC): Add `afadjust.c`.
This commit is contained in:
Craig White
Alexei Podtelezhnikov
parent
aaa0b7881b
commit
abf35d5c67
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@ -159,6 +159,7 @@ FT_TRACE_DEF( gxvprop )
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FT_TRACE_DEF( gxvtrak )
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/* autofit components */
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FT_TRACE_DEF( afadjust )
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FT_TRACE_DEF( afcjk )
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FT_TRACE_DEF( afglobal )
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FT_TRACE_DEF( afhints )
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@ -0,0 +1,185 @@
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/****************************************************************************
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*
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* afadjust.c
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*
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* Auto-fitter routines to adjust components based on charcode (body).
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*
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* Copyright (C) 2023-2024 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* Written by Craig White <gerzytet@gmail.com>.
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*
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* This file is part of the FreeType project, and may only be used,
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* modified, and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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*/
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#include "afadjust.h"
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#include <freetype/freetype.h>
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#include <freetype/internal/ftobjs.h>
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#include <freetype/internal/ftmemory.h>
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#include <freetype/internal/ftdebug.h>
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#define AF_ADJUSTMENT_DATABASE_LENGTH \
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( sizeof ( adjustment_database ) / \
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sizeof ( adjustment_database[0] ) )
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#undef FT_COMPONENT
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#define FT_COMPONENT afadjust
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/*
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All entries in this list must be sorted by ascending Unicode code
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points. The table entries are 3 numbers consisting of:
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- Unicode code point.
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- The vertical adjustment type. This should be one of the enum
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constants in `AF_VerticalSeparationAdjustmentType`.
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- Value 1 if the topmost contour is a tilde and should be prevented from
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flattening, and 0 otherwise.
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*/
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FT_LOCAL_ARRAY_DEF( AF_AdjustmentDatabaseEntry )
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adjustment_database[] =
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{
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{ 0x21, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ! */
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{ 0x69, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* i */
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{ 0x6A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* j */
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{ 0xA1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ¡ */
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{ 0xBF, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ¿ */
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{ 0xC0, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* À */
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{ 0xC1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Á */
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{ 0xC2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Â */
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{ 0xC3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ã */
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{ 0xC8, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* È */
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{ 0xC9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* É */
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{ 0xCA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ê */
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{ 0xCC, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ì */
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{ 0xCD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Í */
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{ 0xCE, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Î */
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{ 0xD1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ñ */
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{ 0xD2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ò */
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{ 0xD3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ó */
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{ 0xD4, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ô */
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{ 0xD5, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Õ */
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{ 0xD9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ù */
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{ 0xDA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ú */
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{ 0xDB, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Û */
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{ 0xDD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ý */
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{ 0xE0, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* à */
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{ 0xE1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* á */
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{ 0xE2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* â */
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{ 0xE3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ã */
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{ 0xE8, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* è */
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{ 0xE9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* é */
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{ 0xEA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ê */
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{ 0xEC, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ì */
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{ 0xED, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* í */
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{ 0xEE, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* î */
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{ 0xF1, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ñ */
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{ 0xF2, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ò */
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{ 0xF3, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ó */
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{ 0xF4, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ô */
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{ 0xF5, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* õ */
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{ 0xF9, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ù */
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{ 0xFA, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ú */
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{ 0xFB, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* û */
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{ 0xFD, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ý */
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{ 0x100, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ā */
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{ 0x101, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ā */
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{ 0x102, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ă */
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{ 0x103, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ă */
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{ 0x106, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ć */
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{ 0x107, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ć */
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{ 0x108, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĉ */
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{ 0x109, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĉ */
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{ 0x10A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ċ */
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{ 0x10B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ċ */
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{ 0x10C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Č */
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{ 0x10D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* č */
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{ 0x10E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ď */
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{ 0x112, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ē */
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{ 0x113, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ē */
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{ 0x114, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĕ */
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{ 0x115, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĕ */
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{ 0x116, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ė */
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{ 0x117, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ė */
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{ 0x11A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ě */
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{ 0x11B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ě */
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{ 0x11C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĝ */
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{ 0x11D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĝ */
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{ 0x11E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ğ */
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{ 0x11F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ğ */
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{ 0x120, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ġ */
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{ 0x121, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ġ */
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{ 0x123, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ģ */
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{ 0x124, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĥ */
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{ 0x125, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĥ */
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{ 0x128, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ĩ */
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{ 0x129, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ĩ */
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{ 0x12A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ī */
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{ 0x12B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ī */
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{ 0x12C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĭ */
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{ 0x12D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĭ */
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{ 0x12F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* į */
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{ 0x130, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* İ */
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{ 0x133, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ij */
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{ 0x134, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĵ */
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{ 0x135, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĵ */
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{ 0x139, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ĺ */
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{ 0x13A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ĺ */
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{ 0x143, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ń */
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{ 0x144, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ń */
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{ 0x147, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ň */
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{ 0x148, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ň */
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{ 0x14C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ō */
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{ 0x14D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ō */
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{ 0x14E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŏ */
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{ 0x14F, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŏ */
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{ 0x154, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŕ */
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{ 0x155, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŕ */
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{ 0x158, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ř */
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{ 0x159, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ř */
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{ 0x15A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ś */
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{ 0x15B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ś */
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{ 0x15C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŝ */
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{ 0x15D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŝ */
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{ 0x160, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Š */
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{ 0x161, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* š */
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{ 0x164, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ť */
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{ 0x168, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* Ũ */
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{ 0x169, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 1 }, /* ũ */
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{ 0x16A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ū */
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{ 0x16B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ū */
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{ 0x16C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŭ */
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{ 0x16D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŭ */
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{ 0x174, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŵ */
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{ 0x175, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŵ */
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{ 0x176, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ŷ */
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{ 0x177, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ŷ */
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{ 0x179, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ź */
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{ 0x17A, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ź */
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{ 0x17B, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ż */
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{ 0x17C, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* ż */
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{ 0x17D, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 }, /* Ž */
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{ 0x17E, AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP, 0 } /* ž */
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};
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/* END */
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@ -0,0 +1,66 @@
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/****************************************************************************
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*
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* afadjust.h
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*
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* Auto-fitter routines to adjust components based on charcode (header).
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*
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* Copyright (C) 2023-2024 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* Written by Craig White <gerzytet@gmail.com>.
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*
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* This file is part of the FreeType project, and may only be used,
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* modified, and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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*/
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#ifndef AFADJUST_H_
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#define AFADJUST_H_
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#include <freetype/fttypes.h>
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#include "afglobal.h"
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#include "aftypes.h"
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FT_BEGIN_HEADER
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/* The type of adjustment that should be done to prevent cases where */
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/* two parts of a character stacked vertically merge, even though they */
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/* should be separate. */
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typedef enum AF_VerticalSeparationAdjustmentType_
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{
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/* This means that the hinter should find the topmost contour and push */
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/* it up until its lowest point is one pixel above the highest point */
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/* not part of that contour. */
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AF_VERTICAL_ADJUSTMENT_TOP_CONTOUR_UP,
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/* This is the opposite direction. The hinter should find the */
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/* bottommost contour and push it down until there is a one-pixel gap. */
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AF_VERTICAL_ADJUSTMENT_BOTTOM_CONTOUR_DOWN,
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AF_VERTICAL_ADJUSTMENT_NONE
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} AF_VerticalSeparationAdjustmentType;
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typedef struct AF_AdjustmentDatabaseEntry_
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{
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FT_UInt32 codepoint;
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AF_VerticalSeparationAdjustmentType vertical_separation_adjustment_type;
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FT_Bool apply_tilde;
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} AF_AdjustmentDatabaseEntry;
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FT_END_HEADER
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#endif /* AFADJUST_H_ */
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/* END */
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@ -19,6 +19,7 @@
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#define FT_MAKE_OPTION_SINGLE_OBJECT
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#include "ft-hb.c"
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#include "afadjust.c"
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#include "afblue.c"
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#include "afcjk.c"
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#include "afdummy.c"
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@ -28,7 +28,8 @@ AUTOF_COMPILE := $(CC) $(ANSIFLAGS) \
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# AUTOF driver sources (i.e., C files)
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#
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AUTOF_DRV_SRC := $(AUTOF_DIR)/afblue.c \
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AUTOF_DRV_SRC := $(AUTOF_DIR)/afadjust.c \
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$(AUTOF_DIR)/afblue.c \
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$(AUTOF_DIR)/afcjk.c \
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$(AUTOF_DIR)/afdummy.c \
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$(AUTOF_DIR)/afglobal.c \
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Reference in New Issue