diff options
| -rw-r--r-- | ChangeLog | 45 | ||||
| -rw-r--r-- | src/truetype/ttgload.c | 5 | ||||
| -rw-r--r-- | src/truetype/ttinterp.h | 20 | ||||
| -rw-r--r-- | src/truetype/ttsubpix.c | 810 | ||||
| -rw-r--r-- | src/truetype/ttsubpix.h | 810 |
5 files changed, 870 insertions, 820 deletions
@@ -1,3 +1,48 @@ +2013-01-16 David 'Digit' Turner <digit@google.com> + + [truetype] Improve sub-pixel code. + + This patches fixes many issues with the ttsubpix implementation. + + 1. Data tables are defined, instead of declared, in the header, and + thus copied into each source file that includes it. + + 2. These tables were defined as global, mutable, visible variables, + and thus costing private RAM to every process that loads the + library (> 50 KB / process, this is huge!). + + Additionally, this also made the library export the symbols + completely needlessly. + + 3. Missing `sph_' and `SPH_' prefixes to some of the definitions. + + Note that this doesn't try to fix the incredibly inefficient storage + format for the data tables used by the code. This one will require + another pass in the future. + + * src/truetype/ttinterp.h (MAX_NAME_SIZE, MAX_CLASS_MEMBERS): + Renamed to... + (SPH_MAX_NAME_SIZE, SPH_MAX_CLASS_MEMBERS): This. + Update all users. + + (SPH_TweakRule, SPH_ScaleRule): Decorate with `const' where + appropriate. + + (Font_Class): Rename to... + (SPH_Font_Class): This. Decorate with `const' where appropriate. + + * src/truetype/ttsubpix.h (scale_test_tweak, sph_test_tweak): + Decorate arguments with `const' where appropriate. + + Move font tweaking tables to... + + * src/truetype/ttsubpic.c: This file and decorate them with `static' + and `const' where appropriate. + + (X_SCALING_Rules, X_SCALING_RULES_SIZE): Renamed to... + (spu_X_SCALING_Rules, SPH_X_SCALING_RULES_SIZE): This. + Update all users. + 2013-01-12 Alexei Podtelezhnikov <apodtele@gmail.com> [truetype] Improve accuracy of normalization of short vectors. diff --git a/src/truetype/ttgload.c b/src/truetype/ttgload.c index 55eb71dae..30ea854c1 100644 --- a/src/truetype/ttgload.c +++ b/src/truetype/ttgload.c @@ -914,8 +914,9 @@ /* scale, but only if enabled and only if TT hinting is being used */ if ( IS_HINTED( loader->load_flags ) ) x_scale_factor = scale_test_tweak( face, family, ppem, style, - loader->glyph_index, X_SCALING_Rules, - X_SCALING_RULES_SIZE ); + loader->glyph_index, + sph_X_SCALING_Rules, + SPH_X_SCALING_RULES_SIZE ); /* scale the glyph */ if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 || x_scale_factor != 1000 ) diff --git a/src/truetype/ttinterp.h b/src/truetype/ttinterp.h index f4336121b..77d6cdb83 100644 --- a/src/truetype/ttinterp.h +++ b/src/truetype/ttinterp.h @@ -115,14 +115,14 @@ FT_BEGIN_HEADER /* various fonts. "", 0, "", NULL value indicates to match any value. */ /* */ -#define MAX_NAME_SIZE 32 -#define MAX_CLASS_MEMBERS 100 +#define SPH_MAX_NAME_SIZE 32 +#define SPH_MAX_CLASS_MEMBERS 100 typedef struct SPH_TweakRule_ { - const char family[MAX_NAME_SIZE]; + const char family[SPH_MAX_NAME_SIZE]; const FT_UInt ppem; - const char style[MAX_NAME_SIZE]; + const char style[SPH_MAX_NAME_SIZE]; const FT_ULong glyph; } SPH_TweakRule; @@ -130,21 +130,21 @@ FT_BEGIN_HEADER typedef struct SPH_ScaleRule_ { - const char family[MAX_NAME_SIZE]; + const char family[SPH_MAX_NAME_SIZE]; const FT_UInt ppem; - const char style[MAX_NAME_SIZE]; + const char style[SPH_MAX_NAME_SIZE]; const FT_ULong glyph; const FT_ULong scale; } SPH_ScaleRule; - typedef struct Font_Class_ + typedef struct SPH_Font_Class_ { - const char name[MAX_NAME_SIZE]; - const char member[MAX_CLASS_MEMBERS][MAX_NAME_SIZE]; + const char name[SPH_MAX_NAME_SIZE]; + const char member[SPH_MAX_CLASS_MEMBERS][SPH_MAX_NAME_SIZE]; - } Font_Class; + } SPH_Font_Class; #endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */ diff --git a/src/truetype/ttsubpix.c b/src/truetype/ttsubpix.c index d09d3d89d..7709d5224 100644 --- a/src/truetype/ttsubpix.c +++ b/src/truetype/ttsubpix.c @@ -28,6 +28,784 @@ #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING + /* 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 + + static const SPH_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", + "Lucida Sans Typewriter", + "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 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 */ + + + + /* 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 + + const SPH_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 + + const 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 + + const 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 + + const 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 + + const 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 10 + + const 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' }, + { "Lucida Grande", 0, "Bold", 'y' }, + /* Cyrillic small letter I */ + { "Legacy Sans Fonts", 0, "", 0x438 }, + { "Verdana Clones", 0, "",'N' }, + { "Ubuntu", 0, "Regular Class", 'N' }, + /* Fix misshapen x */ + { "Verdana", 0, "Bold", 'x' }, + /* Fix misshapen s */ + { "Tahoma", 0, "", 's' }, + }; + + +#define SKIP_NONPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE 6 + + const 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' }, + /* Cyrillic small letter I */ + { "Arial", 0, "", 0x438 }, + { "Trebuchet MS", 0, "Bold", 0 }, + }; + + + /* 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 + + const 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 + + const 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 + + const 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 + + const 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 1 + + const SPH_TweakRule ALLOW_X_DMOVEX_Rules + [ALLOW_X_DMOVEX_RULES_SIZE] = + { + { "-", 0, "Regular", 0 }, + }; + + + /* Allow a Direct_Move along X freedom vector if matched. */ +#define ALLOW_X_DMOVE_RULES_SIZE 1 + + const SPH_TweakRule ALLOW_X_DMOVE_Rules + [ALLOW_X_DMOVE_RULES_SIZE] = + { + /* 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 + + const 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 + + const 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 + + const 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 + + const 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 + + const SPH_TweakRule MIAP_HACK_Rules + [MIAP_HACK_RULES_SIZE] = + { + { "Geneva", 12, "", 0 }, + }; + + + /* Skip DELTAP instructions if matched. */ +#define ALWAYS_SKIP_DELTAP_RULES_SIZE 16 + + const 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 }, + /* fix various problems with e in different versions */ + { "Trebuchet MS", 14, "Regular", 'e' }, + { "Trebuchet MS", 13, "Regular", 'e' }, + { "Trebuchet MS", 15, "Regular", 'e' }, + { "Arial", 11, "Regular", 's' }, + { "Verdana", 10, "Regular", 0 }, + { "Verdana", 9, "Regular", 0 }, + /* Cyrillic small letter short I */ + { "Legacy Sans Fonts", 0, "", 0x438 }, + { "Legacy Sans Fonts", 0, "", 0x439 }, + { "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 + + const 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 + + static const 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 + + static const SPH_TweakRule MIRP_CVT_ZERO_Rules + [MIRP_CVT_ZERO_RULES_SIZE] = + { + { "-", 0, "", 0 }, + }; + + + /* Skip moves that meet or exceed 1 pixel. */ +#define DELTAP_SKIP_EXAGGERATED_VALUES_RULES_SIZE 1 + + static const SPH_TweakRule DELTAP_SKIP_EXAGGERATED_VALUES_Rules + [DELTAP_SKIP_EXAGGERATED_VALUES_RULES_SIZE] = + { + /* Fix vanishing stems */ + { "Ubuntu", 0, "Regular", 'M' }, + }; + + + /* Don't allow ALIGNRP after IUP. */ +#define NO_ALIGNRP_AFTER_IUP_RULES_SIZE 4 + + static const 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 + + static const 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 + + static const 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 + + static const 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 + + static const 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 + + static const 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 + + static const 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 + + static const 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 38 + + static const SPH_TweakRule COMPATIBLE_WIDTHS_Rules + [COMPATIBLE_WIDTHS_RULES_SIZE] = + { + { "Arial Unicode MS", 12, "Regular Class", 'm' }, + { "Arial Unicode MS", 14, "Regular Class", 'm' }, + /* Cyrillic small letter sha */ + { "Arial", 10, "Regular Class", 0x448 }, + { "Arial", 11, "Regular Class", 'm' }, + { "Arial", 12, "Regular Class", 'm' }, + /* Cyrillic small letter sha */ + { "Arial", 12, "Regular Class", 0x448 }, + { "Arial", 13, "Regular Class", 0x448 }, + { "Arial", 14, "Regular Class", 'm' }, + /* Cyrillic small letter sha */ + { "Arial", 14, "Regular Class", 0x448 }, + { "Arial", 15, "Regular Class", 0x448 }, + { "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 }, + { "Monaco", 0, "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", 11, "Regular Class", 0 }, + { "Trebuchet MS", 12, "Regular Class", 0 }, + { "Trebuchet MS", 14, "Regular Class", 0 }, + { "Trebuchet MS", 15, "Regular Class", 0 }, + { "Ubuntu", 12, "Regular Class", 'm' }, + /* Cyrillic small letter sha */ + { "Verdana", 10, "Regular Class", 0x448 }, + { "Verdana", 11, "Regular Class", 0x448 }, + { "Verdana and Clones", 12, "Regular Class", 'i' }, + { "Verdana and Clones", 12, "Regular Class", 'j' }, + { "Verdana and Clones", 12, "Regular Class", 'l' }, + { "Verdana and Clones", 12, "Regular Class", 'm' }, + { "Verdana and Clones", 13, "Regular Class", 'i' }, + { "Verdana and Clones", 13, "Regular Class", 'j' }, + { "Verdana and Clones", 13, "Regular Class", 'l' }, + { "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. */ + /* A value of 1000 corresponds to a scaled value of 1.0. */ + + static const SPH_ScaleRule X_SCALING_Rules[SPH_X_SCALING_RULES_SIZE] = + { + { "DejaVu Sans", 12, "Regular Class", 'm', 950 }, + { "Verdana and Clones", 12, "Regular Class", 'a', 1100 }, + { "Verdana and Clones", 13, "Regular Class", 'a', 1050 }, + { "Arial", 11, "Regular Class", 'm', 975 }, + { "Arial", 12, "Regular Class", 'm', 1050 }, + /* Cyrillic small letter el */ + { "Arial", 13, "Regular Class", 0x43B, 950 }, + { "Arial", 13, "Regular Class", 'o', 950 }, + { "Arial", 13, "Regular Class", 'e', 950 }, + { "Arial", 14, "Regular Class", 'm', 950 }, + /* Cyrillic small letter el */ + { "Arial", 15, "Regular Class", 0x43B, 925 }, + { "Bitstream Vera Sans", 10, "Regular/Italic Class", 0, 1100 }, + { "Bitstream Vera Sans", 12, "Regular/Italic Class", 0, 1050 }, + { "Bitstream Vera Sans", 16, "Regular Class", 0, 1050 }, + { "Bitstream Vera Sans", 9, "Regular/Italic Class", 0, 1050 }, + { "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', 950 }, + { "DejaVu Sans", 13, "Regular Class", 'i', 950 }, + { "DejaVu Sans", 13, "Regular Class", 'j', 950 }, + { "DejaVu Sans", 10, "Regular/Italic Class", 0, 1100 }, + { "DejaVu Sans", 12, "Regular/Italic Class", 0, 1050 }, + { "Georgia", 10, "", 0, 1050 }, + { "Georgia", 11, "", 0, 1100 }, + { "Georgia", 12, "", 0, 1025 }, + { "Georgia", 13, "", 0, 1050 }, + { "Georgia", 16, "", 0, 1050 }, + { "Georgia", 17, "", 0, 1030 }, + { "Liberation Sans", 12, "Regular Class", 'm', 1100 }, + { "Lucida Grande", 11, "Regular Class", 'm', 1100 }, + { "Microsoft Sans Serif", 11, "Regular Class", 'm', 950 }, + { "Microsoft Sans Serif", 12, "Regular Class", 'm', 1050 }, + { "Segoe UI", 12, "Regular Class", 'H', 1050 }, + { "Segoe UI", 12, "Regular Class", 'm', 1050 }, + { "Segoe UI", 14, "Regular Class", 'm', 1050 }, + { "Tahoma", 11, "Regular Class", 'i', 975 }, + { "Tahoma", 11, "Regular Class", 'l', 975 }, + { "Tahoma", 11, "Regular Class", 'j', 900 }, + { "Tahoma", 11, "Regular Class", 'm', 918 }, + { "Verdana", 10, "Regular/Italic Class", 0, 1100 }, + { "Verdana", 12, "Regular Class", 'm', 975 }, + { "Verdana", 12, "Regular/Italic Class", 0, 1050 }, + { "Verdana", 13, "Regular/Italic Class", 'i', 950 }, + { "Verdana", 13, "Regular/Italic Class", 'j', 950 }, + { "Verdana", 13, "Regular/Italic Class", 'l', 950 }, + { "Verdana", 16, "Regular Class", 0, 1050 }, + { "Verdana", 9, "Regular/Italic Class", 0, 1050 }, + { "Times New Roman", 16, "Regular Class", 'm', 918 }, + { "Trebuchet MS", 11, "Regular Class", 'm', 800 }, + { "Trebuchet MS", 12, "Regular Class", 'm', 800 }, + }; + +#else + +#define COMPATIBLE_WIDTHS_RULES_SIZE 1 + + static const SPH_TweakRule COMPATIBLE_WIDTHS_Rules + [COMPATIBLE_WIDTHS_RULES_SIZE] = + { + { "-", 0, "", 0 }, + }; + + +#define X_SCALING_RULES_SIZE 1 + + static const SPH_ScaleRule X_SCALING_Rules + [X_SCALING_RULES_SIZE] = + { + { "-", 0, "", 0, 1000 }, + }; + +#endif /* FORCE_NATURAL_WIDTHS */ + + FT_LOCAL_DEF( const SPH_ScaleRule* const ) + sph_X_SCALING_Rules = X_SCALING_Rules; + FT_LOCAL_DEF( FT_Bool ) is_member_of_family_class( const FT_String* detected_font_name, const FT_String* rule_font_name ) @@ -48,7 +826,7 @@ { if ( strcmp( FAMILY_CLASS_Rules[i].name, rule_font_name ) == 0 ) { - for ( j = 0; j < MAX_CLASS_MEMBERS; j++ ) + for ( j = 0; j < SPH_MAX_CLASS_MEMBERS; j++ ) { if ( strcmp( FAMILY_CLASS_Rules[i].member[j], "" ) == 0 ) continue; @@ -83,7 +861,7 @@ { if ( strcmp( STYLE_CLASS_Rules[i].name, rule_font_style ) == 0 ) { - for ( j = 0; j < MAX_CLASS_MEMBERS; j++ ) + for ( j = 0; j < SPH_MAX_CLASS_MEMBERS; j++ ) { if ( strcmp( STYLE_CLASS_Rules[i].member[j], "" ) == 0 ) continue; @@ -99,13 +877,13 @@ FT_LOCAL_DEF( FT_Bool ) - sph_test_tweak( TT_Face face, - FT_String* family, - FT_UInt ppem, - FT_String* style, - FT_UInt glyph_index, - SPH_TweakRule* rule, - FT_UInt num_rules ) + sph_test_tweak( TT_Face face, + const FT_String* family, + FT_UInt ppem, + const FT_String* style, + FT_UInt glyph_index, + const SPH_TweakRule* rule, + FT_UInt num_rules ) { FT_UInt i; @@ -130,13 +908,13 @@ FT_LOCAL_DEF( FT_UInt ) - scale_test_tweak( TT_Face face, - FT_String* family, - FT_UInt ppem, - FT_String* style, - FT_UInt glyph_index, - SPH_ScaleRule* rule, - FT_UInt num_rules ) + scale_test_tweak( TT_Face face, + const FT_String* family, + FT_UInt ppem, + const FT_String* style, + FT_UInt glyph_index, + const SPH_ScaleRule* rule, + FT_UInt num_rules ) { FT_UInt i; diff --git a/src/truetype/ttsubpix.h b/src/truetype/ttsubpix.h index 2fbff2681..60f387792 100644 --- a/src/truetype/ttsubpix.h +++ b/src/truetype/ttsubpix.h @@ -61,28 +61,32 @@ FT_BEGIN_HEADER FT_LOCAL( FT_Bool ) - sph_test_tweak( TT_Face face, - FT_String* family, - FT_UInt ppem, - FT_String* style, - FT_UInt glyph_index, - SPH_TweakRule* rule, - FT_UInt num_rules ); + sph_test_tweak( TT_Face face, + const FT_String* family, + FT_UInt ppem, + const FT_String* style, + FT_UInt glyph_index, + const SPH_TweakRule* rule, + FT_UInt num_rules ); FT_LOCAL_DEF( FT_UInt ) - scale_test_tweak( TT_Face face, - FT_String* family, - FT_UInt ppem, - FT_String* style, - FT_UInt glyph_index, - SPH_ScaleRule* rule, - FT_UInt num_rules ); + scale_test_tweak( TT_Face face, + const FT_String* family, + FT_UInt ppem, + const FT_String* style, + FT_UInt glyph_index, + const SPH_ScaleRule* rule, + FT_UInt num_rules ); FT_LOCAL( void ) sph_set_tweaks( TT_Loader loader, FT_UInt glyph_index ); +#define SPH_X_SCALING_RULES_SIZE 50 + + FT_LOCAL( const SPH_ScaleRule* const ) sph_X_SCALING_Rules; + /*************************************************************************/ /* */ /* These rules affect how the TT Interpreter does hinting, with the */ @@ -120,784 +124,6 @@ FT_BEGIN_HEADER #define SPH_OPTION_SET_COMPATIBLE_WIDTHS FALSE #define SPH_OPTION_SET_RASTERIZER_VERSION 38 - - /* 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", - "Lucida Sans Typewriter", - "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 10 - - 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' }, - { "Lucida Grande", 0, "Bold", 'y' }, - /* Cyrillic small letter I */ - { "Legacy Sans Fonts", 0, "", 0x438 }, - { "Verdana Clones", 0, "",'N' }, - { "Ubuntu", 0, "Regular Class", 'N' }, - /* Fix misshapen x */ - { "Verdana", 0, "Bold", 'x' }, - /* Fix misshapen s */ - { "Tahoma", 0, "", 's' }, - }; - - -#define SKIP_NONPIXEL_Y_MOVES_RULES_EXCEPTIONS_SIZE 6 - - 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' }, - /* Cyrillic small letter I */ - { "Arial", 0, "", 0x438 }, - { "Trebuchet MS", 0, "Bold", 0 }, - }; - - - /* 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 1 - - SPH_TweakRule ALLOW_X_DMOVEX_Rules - [ALLOW_X_DMOVEX_RULES_SIZE] = - { - { "-", 0, "Regular", 0 }, - }; - - - /* Allow a Direct_Move along X freedom vector if matched. */ -#define ALLOW_X_DMOVE_RULES_SIZE 1 - - SPH_TweakRule ALLOW_X_DMOVE_Rules - [ALLOW_X_DMOVE_RULES_SIZE] = - { - /* 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 16 - - 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 }, - /* fix various problems with e in different versions */ - { "Trebuchet MS", 14, "Regular", 'e' }, - { "Trebuchet MS", 13, "Regular", 'e' }, - { "Trebuchet MS", 15, "Regular", 'e' }, - { "Arial", 11, "Regular", 's' }, - { "Verdana", 10, "Regular", 0 }, - { "Verdana", 9, "Regular", 0 }, - /* Cyrillic small letter short I */ - { "Legacy Sans Fonts", 0, "", 0x438 }, - { "Legacy Sans Fonts", 0, "", 0x439 }, - { "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] = - { - { "-", 0, "", 0 }, - }; - - - /* Skip moves that meet or exceed 1 pixel. */ -#define DELTAP_SKIP_EXAGGERATED_VALUES_RULES_SIZE 1 - - SPH_TweakRule DELTAP_SKIP_EXAGGERATED_VALUES_Rules - [DELTAP_SKIP_EXAGGERATED_VALUES_RULES_SIZE] = - { - /* Fix vanishing stems */ - { "Ubuntu", 0, "Regular", 'M' }, - }; - - - /* 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 38 - - SPH_TweakRule COMPATIBLE_WIDTHS_Rules - [COMPATIBLE_WIDTHS_RULES_SIZE] = - { - { "Arial Unicode MS", 12, "Regular Class", 'm' }, - { "Arial Unicode MS", 14, "Regular Class", 'm' }, - /* Cyrillic small letter sha */ - { "Arial", 10, "Regular Class", 0x448 }, - { "Arial", 11, "Regular Class", 'm' }, - { "Arial", 12, "Regular Class", 'm' }, - /* Cyrillic small letter sha */ - { "Arial", 12, "Regular Class", 0x448 }, - { "Arial", 13, "Regular Class", 0x448 }, - { "Arial", 14, "Regular Class", 'm' }, - /* Cyrillic small letter sha */ - { "Arial", 14, "Regular Class", 0x448 }, - { "Arial", 15, "Regular Class", 0x448 }, - { "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 }, - { "Monaco", 0, "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", 11, "Regular Class", 0 }, - { "Trebuchet MS", 12, "Regular Class", 0 }, - { "Trebuchet MS", 14, "Regular Class", 0 }, - { "Trebuchet MS", 15, "Regular Class", 0 }, - { "Ubuntu", 12, "Regular Class", 'm' }, - /* Cyrillic small letter sha */ - { "Verdana", 10, "Regular Class", 0x448 }, - { "Verdana", 11, "Regular Class", 0x448 }, - { "Verdana and Clones", 12, "Regular Class", 'i' }, - { "Verdana and Clones", 12, "Regular Class", 'j' }, - { "Verdana and Clones", 12, "Regular Class", 'l' }, - { "Verdana and Clones", 12, "Regular Class", 'm' }, - { "Verdana and Clones", 13, "Regular Class", 'i' }, - { "Verdana and Clones", 13, "Regular Class", 'j' }, - { "Verdana and Clones", 13, "Regular Class", 'l' }, - { "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. */ - /* A value of 1000 corresponds to a scaled value of 1.0. */ -#define X_SCALING_RULES_SIZE 50 - - SPH_ScaleRule X_SCALING_Rules - [X_SCALING_RULES_SIZE] = - { - { "DejaVu Sans", 12, "Regular Class", 'm', 950 }, - { "Verdana and Clones", 12, "Regular Class", 'a', 1100 }, - { "Verdana and Clones", 13, "Regular Class", 'a', 1050 }, - { "Arial", 11, "Regular Class", 'm', 975 }, - { "Arial", 12, "Regular Class", 'm', 1050 }, - /* Cyrillic small letter el */ - { "Arial", 13, "Regular Class", 0x43B, 950 }, - { "Arial", 13, "Regular Class", 'o', 950 }, - { "Arial", 13, "Regular Class", 'e', 950 }, - { "Arial", 14, "Regular Class", 'm', 950 }, - /* Cyrillic small letter el */ - { "Arial", 15, "Regular Class", 0x43B, 925 }, - { "Bitstream Vera Sans", 10, "Regular/Italic Class", 0, 1100 }, - { "Bitstream Vera Sans", 12, "Regular/Italic Class", 0, 1050 }, - { "Bitstream Vera Sans", 16, "Regular Class", 0, 1050 }, - { "Bitstream Vera Sans", 9, "Regular/Italic Class", 0, 1050 }, - { "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', 950 }, - { "DejaVu Sans", 13, "Regular Class", 'i', 950 }, - { "DejaVu Sans", 13, "Regular Class", 'j', 950 }, - { "DejaVu Sans", 10, "Regular/Italic Class", 0, 1100 }, - { "DejaVu Sans", 12, "Regular/Italic Class", 0, 1050 }, - { "Georgia", 10, "", 0, 1050 }, - { "Georgia", 11, "", 0, 1100 }, - { "Georgia", 12, "", 0, 1025 }, - { "Georgia", 13, "", 0, 1050 }, - { "Georgia", 16, "", 0, 1050 }, - { "Georgia", 17, "", 0, 1030 }, - { "Liberation Sans", 12, "Regular Class", 'm', 1100 }, - { "Lucida Grande", 11, "Regular Class", 'm', 1100 }, - { "Microsoft Sans Serif", 11, "Regular Class", 'm', 950 }, - { "Microsoft Sans Serif", 12, "Regular Class", 'm', 1050 }, - { "Segoe UI", 12, "Regular Class", 'H', 1050 }, - { "Segoe UI", 12, "Regular Class", 'm', 1050 }, - { "Segoe UI", 14, "Regular Class", 'm', 1050 }, - { "Tahoma", 11, "Regular Class", 'i', 975 }, - { "Tahoma", 11, "Regular Class", 'l', 975 }, - { "Tahoma", 11, "Regular Class", 'j', 900 }, - { "Tahoma", 11, "Regular Class", 'm', 918 }, - { "Verdana", 10, "Regular/Italic Class", 0, 1100 }, - { "Verdana", 12, "Regular Class", 'm', 975 }, - { "Verdana", 12, "Regular/Italic Class", 0, 1050 }, - { "Verdana", 13, "Regular/Italic Class", 'i', 950 }, - { "Verdana", 13, "Regular/Italic Class", 'j', 950 }, - { "Verdana", 13, "Regular/Italic Class", 'l', 950 }, - { "Verdana", 16, "Regular Class", 0, 1050 }, - { "Verdana", 9, "Regular/Italic Class", 0, 1050 }, - { "Times New Roman", 16, "Regular Class", 'm', 918 }, - { "Trebuchet MS", 11, "Regular Class", 'm', 800 }, - { "Trebuchet MS", 12, "Regular Class", 'm', 800 }, - }; - -#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, 1000 }, - }; - -#endif /* FORCE_NATURAL_WIDTHS */ - #endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */ |