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+/***************************************************************************/
+/* */
+/* ttsubpix.h */
+/* */
+/* TrueType Subpixel Hinting. */
+/* */
+/* Copyright 2010-2011 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+#ifndef __TTSUBPIX_H__
+#define __TTSUBPIX_H__
+
+#include <ft2build.h>
+#include "ttobjs.h"
+#include "ttinterp.h"
+
+#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
+
+ /*************************************************************************/
+ /* */
+ /* Tweak flags that are set for each glyph by the below rules */
+ /* */
+ /* */
+#define SPH_TWEAK_ALLOW_X_DMOVE 0x0000001
+#define SPH_TWEAK_ALLOW_X_DMOVEX 0x0000002
+#define SPH_TWEAK_ALLOW_X_MOVE_ZP2 0x0000004
+#define SPH_TWEAK_ALWAYS_DO_DELTAP 0x0000008
+#define SPH_TWEAK_ALWAYS_SKIP_DELTAP 0x0000010
+#define SPH_TWEAK_COURIER_NEW_2_HACK 0x0000020
+#define SPH_TWEAK_DEEMBOLDEN 0x0000040
+#define SPH_TWEAK_DELTAP_SKIP_EXAGGERATED_VALUES 0x0000080
+#define SPH_TWEAK_DO_SHPIX 0x0000100
+#define SPH_TWEAK_EMBOLDEN 0x0000200
+#define SPH_TWEAK_MIAP_HACK 0x0000400
+#define SPH_TWEAK_NORMAL_ROUND 0x0000800
+#define SPH_TWEAK_NO_ALIGNRP_AFTER_IUP 0x0001000
+#define SPH_TWEAK_NO_CALL_AFTER_IUP 0x0002000
+#define SPH_TWEAK_NO_DELTAP_AFTER_IUP 0x0004000
+#define SPH_TWEAK_PIXEL_HINTING 0x0008000
+#define SPH_TWEAK_RASTERIZER_35 0x0010000
+#define SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES 0x0020000
+#define SPH_TWEAK_SKIP_INLINE_DELTAS 0x0040000
+#define SPH_TWEAK_SKIP_IUP 0x0080000
+#define SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES 0x0100000
+#define SPH_TWEAK_SKIP_OFFPIXEL_Y_MOVES 0x0200000
+#define SPH_TWEAK_TIMES_NEW_ROMAN_HACK 0x0400000
+#define SPH_TWEAK_MIRP_CVT_ZERO 0x0800000
+
+
+ FT_LOCAL( FT_Bool )
+ sph_test_tweak( TT_Face face,
+ FT_String* family,
+ int ppem,
+ FT_String* style,
+ FT_UInt glyph_index,
+ SPH_TweakRule* rule,
+ FT_UInt num_rules );
+
+ FT_LOCAL_DEF( float )
+ scale_test_tweak( TT_Face face,
+ FT_String* family,
+ int ppem,
+ FT_String* style,
+ FT_UInt glyph_index,
+ SPH_ScaleRule* rule,
+ FT_UInt num_rules );
+
+ FT_LOCAL( void )
+ sph_set_tweaks( TT_Loader loader,
+ FT_UInt glyph_index );
+
+
+ /*************************************************************************/
+ /* */
+ /* These rules affect how the TT Interpreter does hinting, with the */
+ /* goal of doing subpixel hinting by (in general) ignoring x moves. */
+ /* Some of these rules are fixes that go above and beyond the */
+ /* stated techniques in the MS whitepaper on Cleartype, due to */
+ /* artifacts in many glyphs. So, these rules make some glyphs render */
+ /* better than they do in the MS rasterizer. */
+ /* */
+ /* "" string or 0 int/char indicates to apply to all glyphs. */
+ /* "-" used as dummy placeholders, but any non-matching string works. */
+ /* */
+ /* Some of this could arguably be implemented in fontconfig, however: */
+ /* */
+ /* - Fontconfig can't set things on a glyph-by-glyph basis. */
+ /* - The tweaks that happen here are very low-level, from an average */
+ /* user's point of view and are best implemented in the hinter */
+ /* */
+ /* The goal is to make the subpixel hinting techniques as generalized */
+ /* as possible across all fonts to prevent the need for extra rules such */
+ /* as these. */
+ /* */
+ /* The rule structure is designed so that entirely new rules can easily */
+ /* be added when a new compatibility feature is discovered. */
+ /* */
+ /* The rule structures could also use some enhancement to handle ranges. */
+ /* */
+ /* ****************** WORK IN PROGRESS ******************* */
+ /* */
+
+#define SPH_OPTION_BITMAP_WIDTHS FALSE
+#define SPH_OPTION_SET_SUBPIXEL TRUE
+#define SPH_OPTION_SET_GRAYSCALE FALSE
+#define SPH_OPTION_SET_COMPATIBLE_WIDTHS FALSE
+#define SPH_OPTION_SET_RASTERIZER_VERSION 37
+#define SPH_OPTION_GRIDLINES_PER_PIXEL_X 64
+#define SPH_OPTION_GRIDLINES_PER_PIXEL_Y 1
+
+#define MAX_CLASS_MEMBERS 100
+
+/* Define this to force natural (i.e. not bitmap-compatible) widths. */
+/* The default leans strongly towards natural widths except for a few */
+/* legacy fonts where a selective combination produces nicer results. */
+/* #define FORCE_NATURAL_WIDTHS */
+
+
+ /* These are "classes" of fonts that can be grouped together and used in */
+ /* rules below. A blank entry "" is required at the end of these! */
+#define FAMILY_CLASS_RULES_SIZE 7
+ Font_Class FAMILY_CLASS_Rules
+ [FAMILY_CLASS_RULES_SIZE] =
+ {
+ { "MS Legacy Fonts", { "Aharoni",
+ "Andale Mono",
+ "Andalus",
+ "Angsana New",
+ "AngsanaUPC",
+ "Arabic Transparent",
+ "Arial Black",
+ "Arial Narrow",
+ "Arial Unicode MS",
+ "Arial",
+ "Batang",
+ "Browallia New",
+ "BrowalliaUPC",
+ "Comic Sans MS",
+ "Cordia New",
+ "CordiaUPC",
+ "Courier New",
+ "DFKai-SB",
+ "David Transparent",
+ "David",
+ "DilleniaUPC",
+ "Estrangelo Edessa",
+ "EucrosiaUPC",
+ "FangSong_GB2312",
+ "Fixed Miriam Transparent",
+ "FrankRuehl",
+ "Franklin Gothic Medium",
+ "FreesiaUPC",
+ "Garamond",
+ "Gautami",
+ "Georgia",
+ "Gulim",
+ "Impact",
+ "IrisUPC",
+ "JasmineUPC",
+ "KaiTi_GB2312",
+ "KodchiangUPC",
+ "Latha",
+ "Levenim MT",
+ "LilyUPC",
+ "Lucida Console",
+ "Lucida Sans Unicode",
+ "MS Gothic",
+ "MS Mincho",
+ "MV Boli",
+ "Mangal",
+ "Marlett",
+ "Microsoft Sans Serif",
+ "Mingliu",
+ "Miriam Fixed",
+ "Miriam Transparent",
+ "Miriam",
+ "Narkisim",
+ "Palatino Linotype",
+ "Raavi",
+ "Rod Transparent",
+ "Rod",
+ "Shruti",
+ "SimHei",
+ "Simplified Arabic Fixed",
+ "Simplified Arabic",
+ "Simsun",
+ "Sylfaen",
+ "Symbol",
+ "Tahoma",
+ "Times New Roman",
+ "Traditional Arabic",
+ "Trebuchet MS",
+ "Tunga",
+ "Verdana",
+ "Webdings",
+ "Wingdings", "", }, },
+ { "Core MS Legacy Fonts", { "Arial Black",
+ "Arial Narrow",
+ "Arial Unicode MS",
+ "Arial",
+ "Comic Sans MS",
+ "Courier New",
+ "Garamond",
+ "Georgia",
+ "Impact",
+ "Lucida Console",
+ "Lucida Sans Unicode",
+ "Microsoft Sans Serif",
+ "Palatino Linotype",
+ "Tahoma",
+ "Times New Roman",
+ "Trebuchet MS",
+ "Verdana", "", }, },
+ { "Apple Legacy Fonts", { "Geneva",
+ "Times",
+ "Monaco",
+ "Century",
+ "Chalkboard",
+ "Lobster",
+ "Century Gothic",
+ "Optima",
+ "Lucida Grande",
+ "Gill Sans",
+ "Baskerville",
+ "Helvetica",
+ "Helvetica Neue", "", }, },
+ { "Legacy Sans Fonts", { "Andale Mono",
+ "Arial Unicode MS",
+ "Arial",
+ "Century Gothic",
+ "Comic Sans MS",
+ "Franklin Gothic Medium",
+ "Geneva",
+ "Lucida Console",
+ "Lucida Grande",
+ "Lucida Sans Unicode",
+ "Microsoft Sans Serif",
+ "Monaco",
+ "Tahoma",
+ "Trebuchet MS",
+ "Verdana", "", }, },
+ { "Misc Legacy Fonts", { "Dark Courier", "", }, },
+ { "Verdana Clones", { "DejaVu Sans",
+ "Bitstream Vera Sans", "", }, },
+ { "Verdana and Clones", { "DejaVu Sans",
+ "Bitstream Vera Sans",
+ "Verdana", "", }, },
+};
+
+
+ /* Define "classes" of styles that can be grouped together and used in */
+ /* rules below. A blank entry "" is required at the end of these! */
+#define STYLE_CLASS_RULES_SIZE 5
+ Font_Class STYLE_CLASS_Rules
+ [STYLE_CLASS_RULES_SIZE] =
+ {
+ { "Regular Class", { "Regular",
+ "Book",
+ "Medium",
+ "Roman",
+ "Normal", "", }, },
+ { "Regular/Italic Class", { "Regular",
+ "Book",
+ "Medium",
+ "Italic",
+ "Oblique",
+ "Roman",
+ "Normal", "", }, },
+ { "Bold/BoldItalic Class", { "Bold",
+ "Bold Italic",
+ "Black", "", }, },
+ { "Bold/Italic/BoldItalic Class", { "Bold",
+ "Bold Italic",
+ "Black",
+ "Italic",
+ "Oblique", "", }, },
+ { "Regular/Bold Class", { "Regular",
+ "Book",
+ "Medium",
+ "Normal",
+ "Roman",
+ "Bold",
+ "Black", "", }, },
+ };
+
+
+
+ /* Special fixes for known legacy fonts */
+ /* This is the primary workhorse rule for legacy fonts */
+#define COMPATIBILITY_MODE_RULES_SIZE 4
+ SPH_TweakRule COMPATIBILITY_MODE_Rules
+ [COMPATIBILITY_MODE_RULES_SIZE] =
+ {
+ { "MS Legacy Fonts", 0, "", 0 },
+ { "Apple Legacy Fonts", 0, "", 0 },
+ { "Misc Legacy Fonts", 0, "", 0 },
+ { "Verdana Clones", 0, "", 0 },
+ };
+
+
+ /* Don't do subpixel (ignore_x_mode) hinting; do normal hinting */
+#define PIXEL_HINTING_RULES_SIZE 4
+ SPH_TweakRule PIXEL_HINTING_Rules
+ [PIXEL_HINTING_RULES_SIZE] =
+ {
+ /* These characters are almost always safe */
+ { "", 0, "", '<' },
+ { "", 0, "", '>' },
+ /* Fixes the vanishing stem */
+ { "Times New Roman", 0, "Bold", 'A' },
+ { "Times New Roman", 0, "Bold", 'V' },
+ };
+
+
+ /* According to Greg Hitchcock and the MS whitepaper, this should work */
+ /* on all legacy MS fonts, but creates artifacts with some. Only using */
+ /* where absolutely necessary. */
+#define SKIP_INLINE_DELTAS_RULES_SIZE 1
+ SPH_TweakRule SKIP_INLINE_DELTAS_Rules
+ [SKIP_INLINE_DELTAS_RULES_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+
+ /* Subpixel hinting ignores SHPIX rules on X. Force SHPIX for these. */
+#define DO_SHPIX_RULES_SIZE 1
+ SPH_TweakRule DO_SHPIX_Rules
+ [DO_SHPIX_RULES_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+
+ /* Skip Y moves that start with a point that is not on a Y pixel */
+ /* boundary and don't move that point to a Y pixel boundary. */
+#define SKIP_NONPIXEL_Y_MOVES_RULES_SIZE 8
+ SPH_TweakRule SKIP_NONPIXEL_Y_MOVES_Rules
+ [SKIP_NONPIXEL_Y_MOVES_RULES_SIZE] =
+ {
+ /* fix vwxyz thinness*/
+ { "Consolas", 0, "Regular", 0 },
+ /* fix tiny gap at top of m */
+ { "Arial", 0, "Regular", 'm' },
+ /* Fix thin middle stems */
+ { "Core MS Legacy Fonts", 0, "Regular/Bold Class", 'N' },
+ { "Lucida Grande", 0, "", 'N' },
+ { "Legacy Sans Fonts", 0, "", L'и' },
+ { "Verdana Clones", 0, "",'N' },
+ { "Ubuntu", 0, "Regular Class", 'N' },
+ /* Fix misshapen x */
+ { "Verdana", 0, "Bold", 'x' },
+ };
+
+#define SKIP_NONPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE 4
+ SPH_TweakRule SKIP_NONPIXEL_Y_MOVES_Rules_Exceptions
+ [SKIP_NONPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE] =
+ {
+ { "Tahoma", 0, "", 'N' },
+ { "Comic Sans MS", 0, "", 'N' },
+ { "Verdana", 0, "Regular/Bold Class", 'N' },
+ { "Verdana", 11, "Bold", 'x' },
+ };
+
+
+
+ /* Skip Y moves that move a point off a Y pixel boundary */
+ /* This fixes Tahoma, Trebuchet oddities and some issues with `$' */
+#define SKIP_OFFPIXEL_Y_MOVES_RULES_SIZE 5
+ SPH_TweakRule SKIP_OFFPIXEL_Y_MOVES_Rules
+ [SKIP_OFFPIXEL_Y_MOVES_RULES_SIZE] =
+ {
+ { "MS Legacy Fonts", 0, "", 0 },
+ { "Apple Legacy Fonts", 0, "", 0 },
+ { "Misc Legacy Fonts", 0, "", 0 },
+ { "Ubuntu", 0, "Regular Class", 0 },
+ { "Verdana Clones", 0, "", 0 },
+ };
+
+
+#define SKIP_OFFPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE 1
+ SPH_TweakRule SKIP_OFFPIXEL_Y_MOVES_Rules_Exceptions
+ [SKIP_OFFPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+
+ /* Round moves that don't move a point to a Y pixel boundary */
+#define ROUND_NONPIXEL_Y_MOVES_RULES_SIZE 3
+ SPH_TweakRule ROUND_NONPIXEL_Y_MOVES_Rules
+ [ROUND_NONPIXEL_Y_MOVES_RULES_SIZE] =
+ {
+ /* Droid font instructions don't snap Y to pixels */
+ { "Droid Sans", 0, "Regular/Italic Class", 0 },
+ { "Droid Sans Mono", 0, "", 0 },
+ { "Ubuntu", 0, "", 0 },
+ };
+
+#define ROUND_NONPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE 3
+ SPH_TweakRule ROUND_NONPIXEL_Y_MOVES_Rules_Exceptions
+ [ROUND_NONPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE] =
+ {
+ { "Droid Sans", 12, "Bold", 0 },
+ { "Droid Sans", 13, "Bold", 0 },
+ { "Droid Sans", 16, "Bold", 0 },
+ };
+
+ /* Allow a Direct_Move_X along X freedom vector if matched */
+#define ALLOW_X_DMOVEX_RULES_SIZE 2
+ SPH_TweakRule ALLOW_X_DMOVEX_Rules
+ [ALLOW_X_DMOVEX_RULES_SIZE] =
+ {
+ /* Creates a more consistent appearance for these */
+ { "Arial", 13, "Regular", 'e' },
+ { "Arial", 13, "Regular", 'o' },
+ };
+
+ /* Allow a Direct_Move along X freedom vector if matched */
+#define ALLOW_X_DMOVE_RULES_SIZE 3
+ SPH_TweakRule ALLOW_X_DMOVE_Rules
+ [ALLOW_X_DMOVE_RULES_SIZE] =
+ {
+ /* Creates a more consistent appearance for these */
+ { "Arial", 13, "Regular", 'e' },
+ { "Arial", 13, "Regular", 'o' },
+ /* Fixes vanishing diagonal in 4 */
+ { "Verdana", 0, "Regular", '4' },
+ };
+
+ /* Allow a ZP2 move along freedom vector if matched; */
+ /* This is called from SHP, SHPIX, SHC, SHZ */
+#define ALLOW_X_MOVE_ZP2_RULES_SIZE 1
+ SPH_TweakRule ALLOW_X_MOVE_ZP2_Rules
+ [ALLOW_X_MOVE_ZP2_RULES_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+ /* Return MS rasterizer version 35 if matched */
+#define RASTERIZER_35_RULES_SIZE 8
+ SPH_TweakRule RASTERIZER_35_Rules
+ [RASTERIZER_35_RULES_SIZE] =
+ {
+ /* This seems to be the only way to make these look good */
+ { "Times New Roman", 0, "Regular", 'i' },
+ { "Times New Roman", 0, "Regular", 'j' },
+ { "Times New Roman", 0, "Regular", 'm' },
+ { "Times New Roman", 0, "Regular", 'r' },
+ { "Times New Roman", 0, "Regular", 'a' },
+ { "Times New Roman", 0, "Regular", 'n' },
+ { "Times New Roman", 0, "Regular", 'p' },
+ { "Times", 0, "", 0 },
+ };
+
+ /* Don't round to the subpixel grid. Round to pixel grid. */
+#define NORMAL_ROUND_RULES_SIZE 2
+ SPH_TweakRule NORMAL_ROUND_Rules
+ [NORMAL_ROUND_RULES_SIZE] =
+ {
+ /* Fix point "explosions" */
+ { "Courier New", 0, "", 0 },
+ { "Verdana", 10, "Regular", '4' },
+ };
+
+ /* Skip IUP instructions if matched */
+#define SKIP_IUP_RULES_SIZE 1
+ SPH_TweakRule SKIP_IUP_Rules
+ [SKIP_IUP_RULES_SIZE] =
+ {
+ { "Arial", 13, "Regular", 'a' },
+ };
+
+ /* Skip MIAP Twilight hack if matched */
+#define MIAP_HACK_RULES_SIZE 1
+ SPH_TweakRule MIAP_HACK_Rules
+ [MIAP_HACK_RULES_SIZE] =
+ {
+ { "Geneva", 12, "", 0 },
+ };
+
+ /* Skip DELTAP instructions if matched */
+#define ALWAYS_SKIP_DELTAP_RULES_SIZE 13
+ SPH_TweakRule ALWAYS_SKIP_DELTAP_Rules
+ [ALWAYS_SKIP_DELTAP_RULES_SIZE] =
+ {
+ { "Georgia", 0, "Regular", 'k' },
+ /* fixes problems with W M w */
+ { "Trebuchet MS", 0, "Italic", 0 },
+ { "Trebuchet MS", 14, "Regular", 'e' },
+ { "Arial", 11, "Regular", 's' },
+ { "Verdana", 10, "Regular", 0 },
+ { "Verdana", 9, "Regular", 0 },
+ { "Legacy Sans Fonts", 0, "", L'й' },
+ { "Arial", 10, "Regular", '6' },
+ { "Arial", 0, "Bold/BoldItalic Class", 'a' },
+ /* Make horizontal stems consistent with the rest */
+ { "Arial", 24, "Bold", 's' },
+ { "Arial", 25, "Bold", 's' },
+ { "Arial", 24, "Bold", 'a' },
+ { "Arial", 25, "Bold", 'a' },
+ };
+
+ /* Always do DELTAP instructions if matched */
+#define ALWAYS_DO_DELTAP_RULES_SIZE 2
+ SPH_TweakRule ALWAYS_DO_DELTAP_Rules
+ [ALWAYS_DO_DELTAP_RULES_SIZE] =
+ {
+ { "Verdana Clones", 17, "Regular Class", 'K' },
+ { "Verdana Clones", 17, "Regular Class", 'k' },
+ };
+
+ /* Do an extra RTG instruction in DELTAP if matched */
+#define DELTAP_RTG_RULES_SIZE 1
+ SPH_TweakRule DELTAP_RTG_Rules
+ [DELTAP_RTG_RULES_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+ /* Force CVT distance to zero in MIRP */
+#define MIRP_CVT_ZERO_RULES_SIZE 1
+ SPH_TweakRule MIRP_CVT_ZERO_Rules
+ [MIRP_CVT_ZERO_RULES_SIZE] =
+ {
+ { "Verdana", 0, "Regular", 0 },
+ };
+
+ /* Skip moves that meet or exceed 1 pixel */
+#define DELTAP_SKIP_EXAGGERATED_VALUES_RULES_SIZE 2
+ SPH_TweakRule DELTAP_SKIP_EXAGGERATED_VALUES_Rules
+ [DELTAP_SKIP_EXAGGERATED_VALUES_RULES_SIZE] =
+ {
+ /* Fix vanishing stems */
+ { "Ubuntu", 0, "Regular", 'M' },
+ /* Fix X at larger ppems */
+ { "Segoe UI", 0, "Light", 0 },
+ };
+
+ /* Don't allow ALIGNRP after IUP */
+#define NO_ALIGNRP_AFTER_IUP_RULES_SIZE 4
+ SPH_TweakRule NO_ALIGNRP_AFTER_IUP_Rules
+ [NO_ALIGNRP_AFTER_IUP_RULES_SIZE] =
+ {
+ /* Prevent creation of dents in outline */
+ { "Courier New", 0, "Bold", 'C' },
+ { "Courier New", 0, "Bold", 'D' },
+ { "Courier New", 0, "Bold", 'Q' },
+ { "Courier New", 0, "Bold", '0' },
+ };
+
+ /* Don't allow DELTAP after IUP */
+#define NO_DELTAP_AFTER_IUP_RULES_SIZE 2
+ SPH_TweakRule NO_DELTAP_AFTER_IUP_Rules
+ [NO_DELTAP_AFTER_IUP_RULES_SIZE] =
+ {
+ { "Arial", 0, "Bold", 'N' },
+ { "Verdana", 0, "Regular", '4' },
+ };
+
+ /* Don't allow CALL after IUP */
+#define NO_CALL_AFTER_IUP_RULES_SIZE 4
+ SPH_TweakRule NO_CALL_AFTER_IUP_Rules
+ [NO_CALL_AFTER_IUP_RULES_SIZE] =
+ {
+ /* Prevent creation of dents in outline */
+ { "Courier New", 0, "Bold", 'O' },
+ { "Courier New", 0, "Bold", 'Q' },
+ { "Courier New", 0, "Bold", 'k' },
+ { "Courier New", 0, "Bold Italic", 'M' },
+ };
+
+ /* De-embolden these glyphs slightly */
+#define DEEMBOLDEN_RULES_SIZE 9
+ SPH_TweakRule DEEMBOLDEN_Rules
+ [DEEMBOLDEN_RULES_SIZE] =
+ {
+ { "Courier New", 0, "Bold", 'A' },
+ { "Courier New", 0, "Bold", 'W' },
+ { "Courier New", 0, "Bold", 'w' },
+ { "Courier New", 0, "Bold", 'M' },
+ { "Courier New", 0, "Bold", 'X' },
+ { "Courier New", 0, "Bold", 'K' },
+ { "Courier New", 0, "Bold", 'x' },
+ { "Courier New", 0, "Bold", 'z' },
+ { "Courier New", 0, "Bold", 'v' },
+ };
+
+ /* Embolden these glyphs slightly */
+#define EMBOLDEN_RULES_SIZE 5
+ SPH_TweakRule EMBOLDEN_Rules
+ [EMBOLDEN_RULES_SIZE] =
+ {
+ { "Courier New", 12, "Italic", 'z' },
+ { "Courier New", 11, "Italic", 'z' },
+ { "Courier New", 10, "Italic", 'z' },
+ { "Courier New", 0, "Regular", 0 },
+ { "Courier New", 0, "Italic", 0 },
+ };
+
+ /* Do an extra RDTG instruction in DELTAP if matched */
+#define DELTAP_RDTG_RULES_SIZE 1
+ SPH_TweakRule DELTAP_RDTG_Rules
+ [DELTAP_RDTG_RULES_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+ /* This is a CVT hack that makes thick horizontal stems on 2, 5, 7 */
+ /* similar to Windows XP. */
+#define TIMES_NEW_ROMAN_HACK_RULES_SIZE 12
+ SPH_TweakRule TIMES_NEW_ROMAN_HACK_Rules
+ [TIMES_NEW_ROMAN_HACK_RULES_SIZE] =
+ {
+ { "Times New Roman", 16, "Italic", '2' },
+ { "Times New Roman", 16, "Italic", '5' },
+ { "Times New Roman", 16, "Italic", '7' },
+ { "Times New Roman", 16, "Regular", '2' },
+ { "Times New Roman", 16, "Regular", '5' },
+ { "Times New Roman", 16, "Regular", '7' },
+ { "Times New Roman", 17, "Italic", '2' },
+ { "Times New Roman", 17, "Italic", '5' },
+ { "Times New Roman", 17, "Italic", '7' },
+ { "Times New Roman", 17, "Regular", '2' },
+ { "Times New Roman", 17, "Regular", '5' },
+ { "Times New Roman", 17, "Regular", '7' },
+ };
+
+
+ /* This fudges distance on 2 to get rid of the vanishing stem issue. */
+ /* A real solution to this is certainly welcome. */
+#define COURIER_NEW_2_HACK_RULES_SIZE 15
+ SPH_TweakRule COURIER_NEW_2_HACK_Rules
+ [COURIER_NEW_2_HACK_RULES_SIZE] =
+ {
+ { "Courier New", 10, "Regular", '2' },
+ { "Courier New", 11, "Regular", '2' },
+ { "Courier New", 12, "Regular", '2' },
+ { "Courier New", 13, "Regular", '2' },
+ { "Courier New", 14, "Regular", '2' },
+ { "Courier New", 15, "Regular", '2' },
+ { "Courier New", 16, "Regular", '2' },
+ { "Courier New", 17, "Regular", '2' },
+ { "Courier New", 18, "Regular", '2' },
+ { "Courier New", 19, "Regular", '2' },
+ { "Courier New", 20, "Regular", '2' },
+ { "Courier New", 21, "Regular", '2' },
+ { "Courier New", 22, "Regular", '2' },
+ { "Courier New", 23, "Regular", '2' },
+ { "Courier New", 24, "Regular", '2' },
+ };
+
+
+#ifndef FORCE_NATURAL_WIDTHS
+
+ /* Use compatible widths with these glyphs. Compatible widths is always */
+ /* on when doing B/W TrueType instructing, but is used selectively here, */
+ /* typically on glyphs with 3 or more vertical stems. */
+#define COMPATIBLE_WIDTHS_RULES_SIZE 36
+ SPH_TweakRule COMPATIBLE_WIDTHS_Rules
+ [COMPATIBLE_WIDTHS_RULES_SIZE] =
+ {
+ { "Arial Unicode MS", 12, "Regular Class", 'm' },
+ { "Arial Unicode MS", 14, "Regular Class", 'm' },
+ { "Arial", 10, "Regular Class", L'ш' },
+ { "Arial", 11, "Regular Class", 'm' },
+ { "Arial", 12, "Regular Class", 'm' },
+ { "Arial", 12, "Regular Class", L'ш' },
+ { "Arial", 13, "Regular Class", L'ш' },
+ { "Arial", 14, "Regular Class", 'm' },
+ { "Arial", 14, "Regular Class", L'ш' },
+ { "Arial", 15, "Regular Class", L'ш' },
+ { "Arial", 17, "Regular Class", 'm' },
+ { "DejaVu Sans", 15, "Regular Class", 0 },
+ { "Microsoft Sans Serif", 11, "Regular Class", 0 },
+ { "Microsoft Sans Serif", 12, "Regular Class", 0 },
+ { "Segoe UI", 11, "Regular Class", 0 },
+ { "Segoe UI", 12, "Regular Class", 'm' },
+ { "Segoe UI", 14, "Regular Class", 'm' },
+ { "Tahoma", 11, "Regular Class", 0 },
+ { "Times New Roman", 16, "Regular Class", 'c' },
+ { "Times New Roman", 16, "Regular Class", 'm' },
+ { "Times New Roman", 16, "Regular Class", 'o' },
+ { "Times New Roman", 16, "Regular Class", 'w' },
+ { "Trebuchet MS", 12, "Regular Class", 0 },
+ { "Trebuchet MS", 14, "Regular Class", 0 },
+ { "Trebuchet MS", 15, "Regular Class", 0 },
+ { "Ubuntu", 12, "Regular Class", 'm' },
+ { "Verdana", 10, "Regular Class", L'ш' },
+ { "Verdana", 11, "Regular Class", L'ш' },
+ { "Verdana and Clones", 12, "Regular Class", 'm' },
+ { "Verdana and Clones", 12, "Regular Class", 'l' },
+ { "Verdana and Clones", 12, "Regular Class", 'i' },
+ { "Verdana and Clones", 12, "Regular Class", 'j' },
+ { "Verdana and Clones", 13, "Regular Class", 'l' },
+ { "Verdana and Clones", 13, "Regular Class", 'i' },
+ { "Verdana and Clones", 13, "Regular Class", 'j' },
+ { "Verdana and Clones", 14, "Regular Class", 'm' },
+ };
+
+
+ /* Scaling slightly in the x-direction prior to hinting results in */
+ /* more visually pleasing glyphs in certain cases. */
+ /* This sometimes needs to be coordinated with compatible width rules. */
+#define X_SCALING_RULES_SIZE 40
+ SPH_ScaleRule X_SCALING_Rules
+ [X_SCALING_RULES_SIZE] =
+ {
+ { "DejaVu Sans", 12, "Regular Class", 'm', .95 },
+ { "Verdana and Clones", 12, "Regular Class", 'a', 1.1 },
+ { "Arial", 11, "Regular Class", 'm', .975 },
+ { "Arial", 12, "Regular Class", 'm', 1.05 },
+ { "Arial", 13, "Regular Class", L'л', .95 },
+ { "Arial", 14, "Regular Class", 'm', .95 },
+ { "Arial", 15, "Regular Class", L'л', .925 },
+ { "Bitstream Vera Sans", 10, "Regular Class", 0, 1.1 },
+ { "Bitstream Vera Sans", 12, "Regular Class", 0, 1.05},
+ { "Bitstream Vera Sans", 16, "Regular Class", 0, 1.05 },
+ { "Bitstream Vera Sans", 9, "Regular Class", 0, 1.05},
+ { "DejaVu Sans", 12, "Regular Class", 'l', .975 },
+ { "DejaVu Sans", 12, "Regular Class", 'i', .975 },
+ { "DejaVu Sans", 12, "Regular Class", 'j', .975 },
+ { "DejaVu Sans", 13, "Regular Class", 'l', .95 },
+ { "DejaVu Sans", 13, "Regular Class", 'i', .95 },
+ { "DejaVu Sans", 13, "Regular Class", 'j', .95 },
+ { "DejaVu Sans", 10, "Regular Class", 0, 1.1 },
+ { "DejaVu Sans", 12, "Regular Class", 0, 1.05 },
+ { "Georgia", 10, "", 0, 1.05 },
+ { "Georgia", 11, "", 0, 1.1 },
+ { "Georgia", 12, "", 0, 1.025 },
+ { "Georgia", 13, "", 0, 1.05 },
+ { "Georgia", 16, "", 0, 1.05 },
+ { "Georgia", 17, "", 0, 1.03 },
+ { "Liberation Sans", 12, "Regular Class", 'm', 1.1 },
+ { "Lucida Grande", 11, "Regular Class", 'm', 1.1 },
+ { "Microsoft Sans Serif", 11, "Regular Class", 'm', .95 },
+ { "Microsoft Sans Serif", 12, "Regular Class", 'm', 1.05 },
+ { "Segoe UI", 12, "Regular Class", 'H', 1.05 },
+ { "Segoe UI", 12, "Regular Class", 'm', 1.05 },
+ { "Segoe UI", 14, "Regular Class", 'm', 1.05 },
+ { "Tahoma", 11, "Regular Class", 'm', .975 },
+ { "Verdana", 10, "Regular Class", 0, 1.1 },
+ { "Verdana", 12, "Regular Class", 'm', .975 },
+ { "Verdana", 12, "Regular Class", 0, 1.05 },
+ { "Verdana", 16, "Regular Class", 0, 1.05 },
+ { "Verdana", 9, "Regular Class", 0, 1.05 },
+ { "Times New Roman", 16, "Regular Class", 'm', .95 },
+ { "Trebuchet MS", 12, "Regular Class", 'm', .95 },
+ };
+#else
+#define COMPATIBLE_WIDTHS_RULES_SIZE 1
+ SPH_TweakRule COMPATIBLE_WIDTHS_Rules
+ [COMPATIBLE_WIDTHS_RULES_SIZE] =
+ {
+ { "-", 0, "", 0 },
+ };
+
+#define X_SCALING_RULES_SIZE 1
+ SPH_ScaleRule X_SCALING_Rules
+ [X_SCALING_RULES_SIZE] =
+ {
+ { "-", 0, "", 0, 1.0 },
+ };
+#endif /* FORCE_NATURAL_WIDTHS */
+
+#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
+#endif /* __TTSUBPIX_H__ */
+
+/* END */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 20:55:49 +0000